engineering evaluation/cost analysis (ee/ca)

243
ENGINEERING EVALUATION/COST ANALYSIS SAUER DUMP SITE DUNDALK, MARYLAND Prepared for: U.S. Environmental Protection Agency Region III 1650 Arch Street Philadelphia, PA 19103 EPA Contract Number: EP-S3-07-05 Work Assignment Number: 020NSEE03EW April 2009 1835 Market Street, Suite 1210 Philadelphia, PA 19103 Phone: (215) 636-0667 Fax: (215) 636-0668 www.hgl.com AR103623

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Page 1: ENGINEERING EVALUATION/COST ANALYSIS (EE/CA)

ENGINEERING EVALUATIONCOST ANALYSIS SAUER DUMP SITE

DUNDALK MARYLAND

Prepared for

US Environmental Protection Agency Region III 1650 Arch Street

Philadelphia PA 19103

EPA Contract Number EP-S3-07-05 Work Assignment Number 020NSEE03EW

April 2009

1835 Market Street Suite 1210 Philadelphia PA 19103 Phone (215) 636-0667 Fax (215) 636-0668

wwwhglcom AR103623

This page intentionally left blank

AR103624

TABLE OF CONTENTS Section Page

EXECUTIVE SUMMARY ES-1

10 INTRODUCTION 1-1 11 PURPOSE AND ORGANIZATION OF THE REPORT1-1 12 SITE BACKGROUND 1-1

121 Site Location and Description 1-2 122 Site Operational History 1-2

13 PREVIOUS SITE INVESTIGATIONS1-3 131 MDE and EPA Initial Site Investigations1-3 132 MDE Site Investigation (1990) 1-3 133 EPA Expanded Site Inspection 1-3 134 MDE Investigations (1996-2005) 1-4 135 Extent of Contamination Study 1-4

1351 Site Reconnaissance 1-5 1352 Soil and Sediment Sampling 1-5 1353 Surface Water Sampling1-5 1354 Groundwater Monitoring Well Installation and Sampling 1-6

14 NATURE AND EXTENT OF CONTAMINATION 1-6 141 Surface and Subsurface Soil Contamination1-6 142 Sediment Contamination1-7

15 CONTAMINANT FATE AND TRANSPORT 1-7 16 SUMMARY OF BASELINE RISK ASSESSMENT 1-8

20 REMOVAL OBJECTIVES 2-1 21 REMOVAL OBJECTIVES 2-1 22 IDENTIFICATION OF POTENTIAL APPLICABLE OR RELEVANT

AND APPROPRIATE REQUIREMENTS2-1 221 Chemical-Specific ARARs 2-2 222 Location-Specific ARARs 2-4 223 Action-Specific ARARs2-4 224 To Be Considered Materials 2-6

23 DETERMINATION OF PRELIMINARY REMEDIAL GOALS AND DESCRIPTION OF CONTAMINATED MEDIA2-7 231 Development of Preliminary Remedial Goals2-7 232 Volume Estimates ndash Soils and Sediments2-8 233 Groundwater Management 2-9

30 IDENTIFICATION AND SCREENING OF TECHNOLOGY TYPES AND PROCESS OPTIONS3-1 31 GENERAL RESPONSE ACTIONS3-1

US EPA Region 3 Sauer Dump Site EECA i HydroGeoLogic Inc April 2009

AR103625

TABLE OF CONTENTS (continued) Section Page

US EPA Region 3 Sauer Dump Site EECA ii HydroGeoLogic Inc April 2009

32 IDENTIFICATION AND SCREENING OF POTENTIALLY APPLICABLE TECHNOLOGIES 3-2

33 EVALUATION OF POTENTIAL REMEDIAL TECHNOLOGIES3-2 331 No Action 3-2 332 Institutional Controls 3-3

3321 Deed NoticesRestrictions3-3 3322 Access Agreements3-3 3323 Monitoring of Site Conditions3-4 3324 Security Fencing 3-4 3325 Public Awareness and Information Programs 3-5

333 Containment 3-5 3331 Multi-Layer Cover 3-5 3332 TSCA Compacted Soil Cover 3-6 3333 Asphalt or Concrete Cover3-7

334 Soils and Sediments Treatment 3-8 3341 In Situ Soil Flushing 3-8 3342 Ex Situ Soil Washing 3-9 3343 Ex Situ Thermal Desorption 3-9 3344 Ex Situ Thermal Destruction (Incineration) 3-10

335 Groundwater CollectionTreatment 3-11 3351 Interceptor Trench 3-11 3352 Extraction Wells 3-11 3353 Granular Activated Carbon Adsorption 3-12 3354 Monitored Natural Attenuation 3-12

336 Removal and Disposal TPOs 3-13 3361 Excavation 3-13 3362 Off-Site Landfill 3-13

34 SUMMARY OF TREATMENT TECHNOLOGIES AND SELECTION OF REPRESENTATIVE PROCESS OPTIONS 3-14

40 DEVELOPMENT AND DETAILED ANALYSIS OF REMOVAL ALTERNATIVES 4-1 41 DEVELOPMENT OF ALTERNATIVES4-1

411 Alternative 1 No Action 4-1 412 Alternative 2 Surface Cap Excavation and Off-Site Disposal 4-1 413 Alternative 3 Surface Cap Excavation Off-Site Disposal

and Groundwater Collection and Treatment 4-4 414 Alternative 4 Excavation Off-Site Disposal and Groundwater

Collection and Treatment4-6 42 EVALUATION CRITERIA 4-7 43 DETAILED ANALYSIS OF ALTERNATIVES 4-8

431 Alternative 1 No Action 4-8

AR103626

TABLE OF CONTENTS (continued) Section Page

US EPA Region 3 Sauer Dump Site EECA iii HydroGeoLogic Inc April 2009

4311 Effectiveness4-8 4312 Implementability 4-8 4313 Cost 4-8

432 Alternative 2 Surface Cap Excavation and Off-Site Disposal 4-8 4321 Effectiveness4-8 4322 Implementability 4-9 4323 Cost 4-10

433 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment 4-10 4331 Effectiveness 4-10 4332 Implementability 4-11 4333 Cost 4-11

434 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment 4-11 4341 Effectiveness 4-11 4342 Implementability 4-12 4343 Cost 4-12

44 COMPARATIVE ANALYSIS OF ALTERNATIVES 4-12 441 Effectiveness 4-13 442 Implementability 4-14 443 Cost 4-14

50 SUMMARY5-1

60 REFERENCES6-1

LIST OF APPENDICES

Appendix A Historic Analytical Data Tables Appendix B Removal Technology Cost Estimates

AR103627

LIST OF TABLES

Table 21 Applicable or Relevant and Appropriate Requirements (ARARs) and To Be

Considered Material (TBCs) for Sauer Dump Site Table 22 Preliminary Remediation Goals for Sauer Dump Site Table 23 Estimated Extent of Site Contamination for Sauer Dump Site Table 31 Identification and Preliminary Screening of Soil and Sediment Technologies for

Sauer Dump Site Table 32 Identification and Preliminary Screening of Groundwater Technologies for Sauer

Dump Site Table 33 Evaluation and Screening of Soil and Sediment Technology Process Options

(TPOs) for Sauer Dump Site Table 34 Evaluation and Screening of Groundwater Technology Process Options (TPOs)

for Sauer Dump Site Table 41 Individual Evaluation of Remedial Alternatives for Sauer Dump Site

LIST OF FIGURES

Figure 11 Site Location Map Figure 12 Site Detail Map Figure 13 Historic Sample Locations Figure 14 Extent of Contamination in Surface and Subsurface Soils Figure 15 Extent of Contamination in Sediments Figure 41 Alternative 2 Proposed Limits of Soil Excavation Figure 42 Alternatives 2 and 3 Proposed Extent of TSCA Cap Figure 43 Alternative 3 Proposed Limits of Soil Excavation Figure 44 Alternatives 3 and 4 Proposed Groundwater Interceptor Trench Locations Figure 45 Alternative 4 Proposed Limits of Soil Excavation

US EPA Region 3 Sauer Dump Site EECA iv HydroGeoLogic Inc April 2009

AR103628

LIST OF ACRONYMS AND ABBREVIATIONS

US EPA Region 3 Sauer Dump Site EECA v HydroGeoLogic Inc April 2009

AOC Area of Concern ARAR Applicable or Relevant and Appropriate Requirements BCHD Baltimore County Health Department bgs below ground surface BLRA Baseline Risk Assessment CAA Clean Air Act CERCLA Comprehensive Environmental Response Compensation and Liability

Act CFR Code of Federal Regulations COMAR Code of Maryland Regulations CWA Clean Water Act DOT Department of Transportation EECA Engineering EvaluationCost Analysis ENSAT Environmental Service and Technology Corporation EOCS Extent of Contamination Study EPA US Environmental Protection Agency ESTD Ex Situ Thermal Desorption FFS Focused Feasibility Study FRTR Federal Remediation Technologies Roundtable FS Feasibility Study GRA General Response Actions HGL HydroGeoLogic Inc IC Institutional Control ITRC Interstate Technology and Regulatory Council LDR Land Disposal Restrictions MDE Maryland Department of the Environment mgkg milligrams per kilogram MPRSA Marine Protection Research and Sanctuaries Act NAAQS National Ambient Air Quality Standards NCP National Oil and Hazardous Substances Pollution Contingency Plan NPDES National Pollutant Discharge Elimination System

AR103629

LIST OF ACRONYMS AND ABBREVIATIONS (continued)

US EPA Region 3 Sauer Dump Site EECA vi HydroGeoLogic Inc April 2009

NRWQC National Recommended Water Quality Criteria ORNL Oak Ridge National Laboratory OSHA Occupational Safety and Health Administration PA Preliminary Assessment PAH Polycyclic Aromatic Hydrocarbon PCB Polychlorinated Biphenyl ppm parts per million PRG Preliminary Remediation Goal PRP Potentially Responsible Party RCRA Resource Conservation and Recovery Act RI Remedial Investigation RSL Regional Screening Level SARA Superfund Amendments and Reauthorization Act SI Site Investigation SVOC Semivolatile Organic Compound TBC To Be Considered TPO Technology Process Option TSCA Toxic Substances Control Act VOC Volatile Organic Compound

AR103630

EXECUTIVE SUMMARY This Engineering Evaluation and Cost Analysis (EECA) has been developed for the Sauer Dump Site under Contract Number EP-S3-07-05 with Region III of the US Environmental Protection Agency (EPA) The purpose of this EECA is to develop and evaluate removal alternatives that may be feasible for addressing potential risks to human health and the environment posed by contaminated soils and sediments at the Site This EECA was prepared in accordance with the EPA guidance Conducting Non-Time-Critical Removal Actions Under CERCLA (1993) and is organized as follows

bull Section 1 summarizes the Site history and setting as well as current Site characteristics bull Section 2 identifies the removal objectives potential applicable or relevant and

appropriate requirements (ARARs) Preliminary Remedial Goals (PRGs) and the estimated areas and volumes of soils and sediments requiring remediation

bull Section 3 screens remedial technologies with the potential to remediate soilssediments and groundwater and identifies those technologies retained for the development of removal alternatives

bull Section 4 develops potential removal alternatives and evaluates each one in detail with respect to effectiveness implementability and cost This section also includes a comparative analysis of the removal alternatives

bull Section 5 summarizes the results of the EECA SUMMARY OF THE SITE CONDITIONS AND HISTORY The Sauer Dump Site is located adjacent to Lynhurst Road in Dundalk Baltimore County Maryland (Site) The former operational area of the Site is approximately 22 acres and is currently owned by the Wittstadt Hunting Club A majority of the Sauer Dump Site is located within Parcel 425 with samples indicating that some portions of Parcels 137 295 464 503 and 574 were also impacted by the former operations at the Site Some of these affected parcels contain structures that are used for residential purposes Residential properties border the Site to the north northwest east and southwest The southern boundary of the Site is a cove that is part of the Back River which is a tributary of the Chesapeake Bay Wetlands adjacent to this cove and extending along the east and west side of the former operational area are considered to be part of the impacted area The Site is former marshy land that was stabilized using fill material Non-tidal wetland areas within the Sauer Dump Site were formed by fill operations at the Site The groundwater gradient was observed to be towards the south (towards the Back River) The Site was acquired by Mr Fredrick Sauer (now deceased) and operated as an unpermitted dump and salvage yard beginning as early as the 1950s through the time of Sauerrsquos death in 1990 Dumping activities were limited after the nature of the Site came to the attention of the Baltimore County Health Department (BCHD) and the Maryland Department of the

US EPA Region 3 Sauer Dump Site EECA ES-1 HydroGeoLogic Inc April 2009

AR103631

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Environment (MDE) in 1984 The Sitersquos use as an unpermitted dump and salvage yard resulted in the release of hazardous materials The majority of the Site is covered with approximately 10 feet of fill consisting of soil and debris Mr Sauer was ordered by BCHD to close Site operations in 1984 and by September of 1985 the Site was graded and a majority of the material on-site had been removed MDE conducted a Preliminary Assessment (PA) in 1985 and EPA conducted a Site Investigation (SI) in 1986 The analytical data indicated contaminant concentrations in Site sediments soils and surface water that exceeded risk-based screening criteria Subsequent investigations confirmed soil sediment surface water and ground water contamination at concentrations above the respective risk-based screening criteria Site investigations conducted after the initial MDE and EPA work include

bull EPA Expanded Site Inspection (1991 ndash 1994) bull MDE Continued Site Investigations (1996 1999 and 2001) bull MDE Polychlorinated Biphenyl (PCB) Hot-Spot Delineation and Groundwater

Investigation (2002) bull MDE Data Gap Sampling Events (2004 and 2005) bull Extent of Contamination Study (2006-2007)

The primary contaminants in the Sitersquos surface soils subsurface soils and sediments are metals particularly lead and chromium and polychlorinated biphenys (PCBs) however volatile and semivolatile organic compounds (VOCs and SVOCs) were detected at elevated levels in multiple samples Previous Site investigation activities concluded that while most of the surface soils within the boundary of Parcel 425 had been impacted by Site contaminants there were two ldquoHot Spotsrdquo within the area One was located along the southeastern boundary of Parcel 425 where it joins Parcel 137 The other ldquoHot Spotrdquo was much smaller in size and was located in the south-central portion of the Site near the Back River wetlands Previous surface and subsurface soil sampling activities have shown that the access road to the Site (through Parcel 503 and 464) has been impacted by former Site activities Site contaminants have also been detected in the sediments located in the wetlands at the Site One of the ldquoHot Spotsrdquo previously discovered includes portions of the Southeast Finger wetlands which extend into Parcels 137 and 295 In addition elevated levels of Site contaminants have been detected in the Pond area and the Back River wetlands REMOVAL OBJECTIVES The following Removal Objectives were identified

bull Reduce exposure to non-carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

bull Reduce exposure to carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

US EPA Region 3 Sauer Dump Site EECA ES-2 HydroGeoLogic Inc April 2009

AR103632

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA ES-3 HydroGeoLogic Inc April 2009

bull Reduce risks to human health and ecological communities exposed directly to chemicals in the soils and sediments and indirectly to these chemicals via bioaccumulation of Site contaminants in fish in the receiving waters

bull Minimize the further spread of contamination via any of the following major migration pathways deg Soils to groundwater deg Soils to surface water deg Soils to sediments deg Soils to air deg Groundwater to surface water and deg Sediments to surface water

PRELIMINARY REMEDIAL GOALS (PRGs) PRGs are concentrations used as initial cleanup goals to support the development and evaluation of different remedial approaches PRGs are not the final cleanup standards Sampling at the Site was conducted for a large suite of contaminants (Target Analyte ListTarget Compound List) that were the targets of investigation There were several detected contaminants which exceeded screening level ecological risk assessment values These screening values are not intended to be strictly used as clean up criteria and are intended to be conservative in nature in the early part of the risk assessment process Two contaminants (PCBs and lead) have been identified as primary risk drivers from a human health and ecological risk assessment perspective and also serve as potential markers to delineate areas for a removal action Furthermore evaluated remedial alternatives do not selectively address individual contaminants differentially from the perspective of chemical treatment or degradation The following PRGs were used to identify the area and volume of contaminated media to be addressed by the EECA

bull 400 milligrams per kilogram (mgkg)1 lead in soils bull 1 mgkg total PCBs in soils bull 1 mgkg total PCBs in sediments and bull 130 mgkg lead in sediments

The PRGs for lead and total PCBs in soils are consistent with other sites within EPA Region III where remediation goals of 400 mgkg lead and 1 mgkg PCBs in soils have been established based on results of those sitesrsquo baseline risk assessments The PRG for PCBs in sediments 1 mgkg is based on the practical engineering limitations of dredging technologies For sediments the lead PRG of 130 mgkg reflects consideration of Development and Evaluation of Consensus-Based Sediment Quality Guidelines for Freshwater Ecosystems (MacDonald et al 2000) as noted in the August 2007 Action Memorandum (EPA 2007)

1 Also referred to as parts per million (ppm)

AR103633

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA ES-4 HydroGeoLogic Inc April 2009

The surface water PRGs are based on National Recommended Water Quality Criteria (NRWQC) The Freshwater Chronic values of 0000064 micrograms per liter (ugl)2 total PCBs and 81 ugl lead were selected for surface water at this Site Because groundwater at the Site will not be used as a source of drinking water the primary concern is to ensure that groundwater contaminants do not discharge to surface water at concentrations which would result in impairment of the surface water quality Accordingly the Freshwater Chronic NRWQC are also appropriate as the groundwater PRGs The surface water and groundwater PRGs are provided in Table 22 SOIL AND SEDIMENT VOLUME CALCULATION To determine the volume of soils and sediments requiring remediation chemical concentrations detected in soil and sediment samples were compared to the corresponding PRGs For the evaluation data from the following reports were used Environmental Service and Technology Corporation (ENSAT) Remedial Investigation (RI) and Focused Feasibility Study (FFS) July 2002 (ENSAT 2002a) ENSAT Remedial Investigation August 2005 (ENSAT 2005) and Malcolm Pirnie Extent of Contamination Study (EOCS) June 2007 (Malcolm Pirnie 2007) The lateral extent of soil contamination greater than PRGs was estimated from the surface soil data The available data indicate that portions of Parcels 137 295 425 464 503 and 574 are characterized by soil contamination in excess of the PRGs Subsurface data were used to estimate the vertical extent of contamination requiring remediation In general if no subsurface soil data were available the depth of contamination requiring remediation was assumed to be 8 feet below ground surface (bgs) In the southern portion of Parcel 425 a depth of 35 feet was assumed based on data defining the depth to groundwater On Parcel 137 an average remediation depth of 4 feet was assumed The estimated maximum volume of Site soils requiring remediation is 16760 cubic yards For sediments the remedial volume was based on an assumed remediation depth of 4 feet in areas with wetland vegetation It is estimated that a total of 7740 cubic yards of sediments will require remediation Additional sediment volumes from the Back River might require remediation but the only sample that showed concentrations greater than those proposed for the Site was collected in 1999 Submerged sediment samples have been collected 14 times from within the Back River at locations adjacent to the Sauer Dump Site Given the time span since this sample was collected (over nine years) the mobile nature of river sediments (especially in a tidal location) and natural attenuation the area is currently assumed to meet the PRGs Additional sampling of the Back River sediments should be performed to confirm that the sediments do not exceed the PRGs 2 Also referred to as parts per billion (ppb)

AR103634

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

TECHNOLOGY PROCESS SCREENING AND DEVELOPMENT OF ALTERNATIVES Technology Process Options (TPOs) representing a range of technology types with the potential to address at least some portion of the Site contamination were identified These TPOs were then screened based on their ability to treat Site wastes feasibility for implementation and relative costs of implementation Those TPOs that were retained from the initial screening steps were assembled into removal alternatives that could meet the removal objectives for the Site These removal alternatives were evaluated in terms of effectiveness implementability and cost The four alternatives selected for the detailed evaluation are described below Alternative 1 No Action The no action alternative is included as a baseline in the comparison of other alternatives as required by the National Oil and Hazardous Substances Pollution Contingency Plan (NCP) No removal activities or institutional controls (ICs) would be implemented under this alternative although some level of natural attenuation might occur Alternative 2 Surface Cap Excavation and Off-Site Disposal This alternative consists of the following components

bull Removal and off-site disposal of surface debris bull Clearing and grubbing of Parcel 425 and removal and disposal of materials bull Confirmation sampling to proceed concurrently with all excavation to ensure that

removal requirements are met bull Excavation of contaminated soils with PCBs greater than 100 ppm regardless of depth

and lead greater than 1000 ppm in the upper 2 feet would be excavated from Parcels 425 and 574 for proper off-site disposal

bull Excavation of all contaminated soils with PCBs greater than 1 ppm and lead greater than 400 ppm from the residential properties (Parcels 137 295 464 503 and portions of 574) adjacent to Parcel 425

bull Excavation of the contaminated sediments from the affected wetlands All sediments with PCBs greater than 1 ppm and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 ppm below that depth would be excavated

bull Previously collected data generally supports the conclusion that sediments in the Back River meet the PRGs Verification sampling of sediments along the Back River shoreline would be undertaken to assess the validity of that conclusion If PRGs are not met sediments with PCBs greater than 1 ppm and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 pm below that depth would be excavated

bull Excavated soils and sediments would be temporarily stockpiled in a staging area established on Parcel 425 Confirmation sampling from the stockpile would be performed to verify that PCB concentrations are less than 100 ppm and lead

US EPA Region 3 Sauer Dump Site EECA ES-5 HydroGeoLogic Inc April 2009

AR103635

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

concentrations are less than 1000 ppm Soils and sediments meeting these criteria would be placed across the upland portions of Parcel 425 Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull After completion of excavation and confirmation sampling all excavated areas with the exception of Parcel 425 would be restored by backfilling and re-vegetation Parcel 425 would be re-graded and compacted after placement of the excavated soils and sediments and backfilled as required to maintain proper grade and drainage in preparation for construction of a TSCA soil cover

bull Construction of a TSCA compacted soil cover over the contaminated soils and sediments which exceed 1 ppm PCBs on Parcel 425

bull Installation of replacement monitoring wells if necessary and a monitoring program to monitor the effectiveness of the remediation effort and groundwater quality Groundwater monitoring would be conducted on a semi-annual basis for a four year period beginning after the construction activities are complete Constituents to be monitored include lead and PCBs and

bull Implementation of Institutional Controls to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area of the Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment This alternative includes the same elements as Alternative 2 with the following exceptions

bull Excavation of contaminated soils with PCBs greater than 10 ppm and lead greater than 400 ppm at any depth from Parcels 425 and 574 for proper off-site disposal

bull Excavation of the contaminated sediments from the affected wetlands All sediments with PCBs greater than 1 ppm and lead greater than 130 ppm would be excavated

bull Excavated soils and sediments with PCB concentrations less than 10 ppm and lead concentrations less than 400 ppm would be placed across the upland portions of Parcel 425 for capping Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull Installation of a groundwater collection system to control off-site migration of groundwater from the former dump area

bull Installation of a groundwater treatment system to remove lead and PCBs from the captured groundwater and discharge the water to the Back River

bull Implementation of long-term operation maintenance and monitoring for the groundwater collection and treatment system and

bull Implementation of Institutional Controls to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area

US EPA Region 3 Sauer Dump Site EECA ES-6 HydroGeoLogic Inc April 2009

AR103636

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

of the Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment This alternative consists of the elements of Alternative 2 with the following additional components

bull No cap would be installed at the Site bull Excavation of contaminated soils with PCBs greater than 1 ppm and lead greater than

400 ppm at any depth from all parcels for proper off-site disposal bull Excavation of the contaminated sediments from the affected wetlands All wetland

sediments with PCBs greater than 1 ppm and lead greater than 130 ppm would be excavated for proper off-site disposal

bull Proper off-site landfilling of excavated soils with greater than 1 ppm and less than 500 ppm of PCBs

bull After completion of excavation and confirmation sampling all excavated areas would be restored

bull Installation of a groundwater collection and treatment system and associated long-term monitoring and maintenance as described for Alternative 3 and

bull Recordation of deed notices to ensure that groundwater use is restricted if necessary

ANALYSIS OF ALTERNATIVES Alternative 1 Effectiveness Because no action would be performed this alternative would not protect human health or the environment Current and future risks from soil and sediment contamination at the Site would not be significantly different from those that currently exist ARARs would not be met Because no action would be taken this alternative does not pose any risks associated with implementation Implementability Because no action would be taken this alternative could be implemented easily Costs There are no costs associated with Alternative 1 Alternative 2 Effectiveness This alternative provides effective long-term protection of human health and the environment by either removing the contaminated materials or eliminating the potential contact pathway The removed materials would be disposed in an off-site landfill or incinerated at a permitted off-site facility Alternative 2 would decrease soil and sediment

US EPA Region 3 Sauer Dump Site EECA ES-7 HydroGeoLogic Inc April 2009

AR103637

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

contaminant mobility toxicity and volume Installation of a TSCA cap would reduce the potential for erosion of soils and prevent dermal contact with contaminated soils The cap would also minimize the infiltration of liquids through the contaminated soils remaining at the Site Implementation of ICs would also increase the long term protectiveness of this alternative Installation of a fence around the capped area of the Site would effectively restrict access to the Site The requirement for deed notices would ensure that any potential future purchaser of the property comprising the Site would be aware that contamination remains on the Site and of the necessity for maintaining the cap and the fence This alternative would comply with ARARs provided the entire Site is classified as a single Area of Concern (AOC) to meet land disposal restriction (LDR) criteria in TSCA and the Resource Conservation and Recovery Act (RCRA) (see Section 221) This alternative would also meet the risk-based criteria of the TSCA regulations at 40 CFR sect 76161(c) Alternative 2 would provide limited control of groundwater interaction with soils and sediments below the compacted soil cap Any soil contamination remaining below the capped areas could come in contact with the tidally influenced groundwater While Alternative 2 would not initially provide for groundwater treatment if the monitoring program implemented as part of this alternative indicated that unacceptable levels of Site contaminants are impacting the groundwater andor the Back River a groundwater capture and treatment system could be put in place to address the problem Implementability This alternative could be implemented with standard construction equipment and readily available materials and labor No major technical difficulties are anticipated in implementing this alternative and it could be implemented within a relatively short period of time Currently there are only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 mgkg These facilities are in Texas or Utah necessitating the use of long distance truck transportation The risk associated with off-site transport is the potential for contamination to spread through spills or accidents Also long-term administrative resources would be required to ensure compliance with the ICs and maintenance of the cover Cost The cost calculations for Alternative 2 are presented in Appendix B-1

bull The capital cost for Alternative 2 is estimated to be $ 531 Million

bull The present worth OampM cost is approximately $ 729000

bull The total project cost (present worth) is estimated to be $ 604 Million

Alternative 3

US EPA Region 3 Sauer Dump Site EECA ES-8 HydroGeoLogic Inc April 2009

AR103638

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Effectiveness Alternative 3 would be more effective at reducing risks related to Site contamination than Alternative 2 because soils with PCB concentrations greater than 10 ppm (instead of 100 ppm) or lead concentrations greater than 400 ppm (instead of 1000 ppm) would be removed from the Site Additionally Alternative 3 would provide controls to prevent off-site migration of groundwater from beneath the compacted soil cap The excavation and off-site disposal of additional contaminated soils and sediments and the construction of a groundwater collection and treatment system would increase short-term impacts including increased construction activities and truck traffic Alternative 3 would comply with ARARs As in Alternative 2 the Site would be considered a single AOC with respect to LDR compliance The groundwater collection and treatment system would have the added benefit of preventing the potential migration of contaminated groundwater to the wetland areas and surface waters Alternative 3 would decrease contaminant mobility toxicity and volume in both the groundwater and soilssediments Implementation of ICs would also increase the long term protectiveness of this alternative Installation of a fence around the capped area of the Site would effectively restrict access to the Site The requirement for deed notices would ensure that any potential future purchaser of the property comprising the Site would be aware that contamination remains on the Site and of the necessity for maintaining the cap and the fence Implementability Alternative 3 would be somewhat more difficult to implement than Alternative 2 because of the additional excavation of soils and sediments that would be required Currently there are only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 mgkg These facilities are in Texas or Utah necessitating the use of long distance truck transportation The risk associated with off-site transport is the potential for contamination to spread through spills or accidents and this risk would be increased with this alternative because of the additional loads of contaminated soils and sediments that would need to be transported off-site for disposal This alternative would also require the construction of a groundwater collection treatment and discharge system While a National Pollutant Discharge Elimination System (NPDES) permit would not be required to discharge the treated groundwater to the Back River it would be necessary to comply with the substantive requirements of 40 CFR Part 122 For groundwater the treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively making it difficult if not impossible to achieve the required level of treatment for PCBs Additional long-term administrative resources would be required to ensure compliance with the ICs as well as maintenance of the cover system and fence and maintenance and monitoring of the collection and treatment system It would also take longer to implement this alternative than it would for Alternative 2 because of the increased excavation and construction activities required Cost The cost calculations for Alternative 3 are presented in Appendix B-2

US EPA Region 3 Sauer Dump Site EECA ES-9 HydroGeoLogic Inc April 2009

AR103639

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

The capital cost for Alternative 3 is estimated to be $ 777 Million

The present worth OampM cost is approximately $ 163 Million

The total project cost (present worth) is estimated to be $ 939 Million

Alternative 4 Effectiveness Because all soils and sediments with contamination concentrations above the PRGs would be removed from the Site Alternative 4 would provide the greatest long-term protection to human health and the environment and more effective control of contaminant migration relative to the other alternatives As with Alternative 3 the groundwater collection and treatment system would prevent the potential migration of residual contaminated groundwater to the wetland areas and surface waters Alternative 4 shares the same short-term excavation and transportation impacts identified for Alternative 3 however truck traffic would be greatly increased This alternative would decrease contaminant mobility toxicity and volume and would comply with ARARs Implementability Because all soils would be disposed off-site there would be a significant increase in truck traffic relative to the other alternatives The risk associated with off-site transport is the potential for contamination to spread through spills or accidents and this risk would be greatly increased with this alternative because of the significant number of additional loads of contaminated soils and sediments that would need to be transported off-site for disposal In addition there are currently only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 mgkg These facilities are in Texas or Utah necessitating the use of long distance truck transportation Public opposition to the traffic impacts from the extensive off-site transportation requirements of this alternative could potentially make implementability more difficult than for Alternatives 2 and 3 This alternative would also require the construction of a groundwater collection treatment and discharge system and would require compliance with the substantive requirements of a NPDES permit For groundwater the treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively making it difficult if not impossible to achieve the required level of treatment for PCBs It would take considerably longer to implement this alternative than it would to implement Alternative 2 Additional long-term administrative resources would be required to ensure compliance with any ICs determined to be necessary as well as maintenance and monitoring of the collection and treatment system Cost The cost calculations for Alternative 4 are presented in Appendix B-3

The capital cost for Alternative 4 is estimated to be $ 1141 Million

US EPA Region 3 Sauer Dump Site EECA ES-10 HydroGeoLogic Inc April 2009

AR103640

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

The present worth OampM cost is approximately $ 132 Million

The total project cost (present worth) is estimated to be $ 1272 Million

COMPARATIVE ANALYSIS AND RECOMMENDED ALTERNATIVE Alternative 1 No Action would not be an effective alternative This alternative would not protect human health or the environment would not prevent contaminant migration and would not comply with ARARs Alternatives 2 3 and 4 would provide generally effective approaches to the protection of human health and the environment All three alternatives would comply with ARARs although Alternatives 2 and 3 rely on the classification of the entire Site as a single Area of Concern Alternative 2 would address the interaction and discharge of groundwater with Site contaminants that are left under the capped areas through monitoring rather than collection and treatment Alternative 2 would also allow more contaminated materials (PCBslt100 ppm and lead lt1000 ppm) to remain on the Site (albeit under a TSCA cap) than the other alternatives Alternatives 2 3 and 4 would eliminate the soil exposure pathways which contribute to the unacceptable human health and ecological risks but Alternatives 2 and 3 would require the ongoing maintenance of a cap to ensure that the pathway remains blocked All three of these alternatives would prevent continued migration of soil and sediment contaminants although again Alternatives 2 and 3 would require cap maintenance to ensure that migration is prevented in the long term Because it would require the removal and off-site disposal of the most highly contaminated material (down to 1 ppm PCBs and 400 ppm lead) Alternative 4 would provide the highest degree of long-term protection Alternatives 2 3 and 4 each would pose short-term risks to workers and the community These risks however could be mitigated through use of engineering controls personal protective equipment and vapordust suppression measures Alternative 4 would pose the greatest short-term risks because of the significant increase in excavation activities and truck traffic required Alternative 2 would pose the least short-term risks Alternatives 2 and 3 would decrease but not eliminate contaminant mobility and would reduce contaminant toxicity and volume Alternative 4 would eliminate contaminant mobility and would reduce contaminant toxicity and volume Alternatives 2 and 3 would provide additional protection of human health and the environment through the implementation of ICs The implementability evaluation indicated that Alternative 4 would be the most difficult to implement and would take the longest amount of time to implement because of the need for greater excavation of soils and sediments and off-site disposal of all contaminated soils and sediments Alternatives 3 and 4 would be difficult to implement because the PRGs for groundwater may be impossible to meet Aside from the No Action Alternative Alternative 2 would be the easiest to implement

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US EPA Region 3 Sauer Dump Site EECA ES-12 HydroGeoLogic Inc April 2009

Alternative 2 with a total present worth of $604 million would be less expensive than Alternatives 3 and 4 Alternative 4 has the both the highest degree of protectiveness and the greatest estimated cost $ 1272 million Alternative 3 would provide a high degree of protection at a cost of $ 939 million Based on the comparison performed as part of this evaluation all the alternatives appear to be generally protective with Alternative 4 appearing to be the most protective as well as the most difficult to implement and the most costly The incremental cost increases (approximately 55 between Alternatives 2 and 3 and 35 between Alternatives 3 and 4) are accompanied by increases in overall protectiveness that are difficult to quantify accurately and in the case of the groundwater pathway may be difficult or impossible to achieve Alternative 2 appears to be the most easily implemented and least costly protective approach for this Site

AR103642

ENGINEERING EVALUATIONCOST ANALYSIS SAUER DUMP SITE

DUNDALK MARYLAND

10 INTRODUCTION

This Engineering Evaluation and Cost Analysis (EECA) has been developed for the Sauer Dump Site (Site) a former unlicensed dump and salvage yard located in Dundalk Maryland (Figure 11) This EECA has been prepared by HydroGeoLogic Inc (HGL) under Contract Number EP-S3-07-05 with Region III of the US Environmental Protection Agency (EPA) in accordance with Tasks 12 and 13 of Work Assignment 020NSEE03EW

11 PURPOSE AND ORGANIZATION OF THE REPORT

The purpose of this EECA Report is to develop and evaluate removal action alternatives to address potential risks to human health and the environment posed by contaminated sediments and soils at the Sauer Dump Site The scope of this EECA is based on discussions with EPA and information obtained from previous Site investigations performed by other consultants This document has been prepared in accordance with the requirements of the NCP 40 Code of Federal Regulations (CFR) Part 300 regulations for implementing the Comprehensive Environmental Response Compensation and Liability Act (CERCLA) as well as the EPA guidance Conducting Non-Time-Critical Removal Actions Under CERCLA (EPA 1993) The EECA is organized as follows

bull The subsequent subsections of Section 1 summarize Site history and setting as well as current Site characteristics

bull Section 2 identifies the removal objectives potential applicable or relevant and appropriate requirements (ARARs) Preliminary Remedial Goals (PRGs) and the estimated areas and volumes of sediments and soils requiring remediation

bull Section 3 identifies and screens technologies with the potential to address the soilssediments and groundwater contamination

bull Section 4 describes the removal alternatives developed from the technologies retained in Section 3 Section 4 also contains a detailed and comparative analysis of the removal alternatives

bull Section 5 summarizes the results of the EECA

12 SITE BACKGROUND

Background information on the Sauer Dump Site is summarized below Additional background material can be found in the July 2002 Remedial Investigation (RI) and Focused Feasibility Study (FFS) prepared by Environmental Service and Technology Corporation (ENSAT)

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HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

(ENSAT 2002a) and in the June 2007 Extent of Contamination Study (EOCS) Report prepared by Malcolm Pirnie (Malcolm Pirnie 2007) The majority of the Site is located within Parcel 425 with some portions of Parcels 137 295 464 503 and 574 impacted by andor included in the former operations at the Site A Site map showing the parcel boundaries along with the locations and designations of the wetland areas is included as Figure 12

121 Site Location and Description

The Sauer Dump Site is located behind and adjacent to residential properties on Lynhurst Road Dundalk Baltimore County Maryland The area is a mixture of residential and undeveloped properties The Site is estimated to be 57 acres (including portions of surrounding parcels that are known to have been impacted by the contamination) in size and the main property (Parcel 425) is currently owned by the Wittstadt Hunting Club Some of the affected parcels include structures that are used for residential purposes A precise determination of the Site boundaries is not possible at this point because the existing data do not sufficiently delineate the areal extents of the Site contamination Parcel 425 is largely vegetated with tall grasses reeds trees and scrub brush and is surrounded by a chain-link fence to control access to the Site Two gates located along the northern and southern perimeters of the fence are locked to prevent unauthorized access Parcel 425 is former marshy land that was stabilized using fill material There is a ponded area located to the northwest of Parcel 425 The southern boundary of the Site is a cove that is part of the Back River which is a tributary of the Chesapeake Bay (Figure 11) Wetlands adjacent to this cove and extending along the east and west side of the former operational area are considered to be part of the impacted area Previous Site investigations concluded that the wetlands onsite that are not tidally influenced were formed by fill operations within the Sauer Dump Site Past Site operations have impacted an estimated 144 acres of wetlands surrounding the upland portions of the Site The vegetation observed within the wetlands is predominantly reeds (Phragmites ndash an invasive species)

122 Site Operational History

According to previous reports the main portion of the Site was owned by Mr Fredrick Sauer (now deceased) and was operated as an unpermitted dump and salvage yard beginning as early as the 1950s and continuing until Sauerrsquos death in 1990 Activities at the Site were limited in the mid-1980s when the nature of the Site came to the attention of the Baltimore County Health Department (BCHD) and the Maryland Department of the Environment (MDE) Based on soil sediment surface water and groundwater data the Sitersquos use as an unpermitted dump and salvage yard resulted in the release of hazardous materials

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13 PREVIOUS SITE INVESTIGATIONS

131 MDE and EPA Initial Site Investigations

To address concerns raised by BCHD about the Site two Site Investigations were performed between 1985 and 1986 MDE conducted a Preliminary Assessment (PA) and Site Investigation (SI) and EPA conducted a SI During the investigations salvage and dump operations were observed on Site and in portions of the surrounding residential area The Site was observed to be relatively flat with mounds of dumped domestic and construction debris burned paint waste and several charred areas Salvage items observed during the Site investigations included scrap metal empty tanks and drums abandoned trucks open roll-off containers construction equipment concrete conduit wood chips and abandoned automobiles An oily sheen was observed on-site and in the adjacent wetlands The BCHD ordered Mr Sauer to close Site operations in 1984 By September of 1985 a majority of the material on-site had been removed However later observations indicated that dumping and salvage operations continued until Sauerrsquos death in 1990 During Site Investigation activities soil sediment and surface water samples were collected and analyzed for VOCs SVOCs total metals pesticides and PCBs The data indicated the presence of these analytes at concentrations greater than the risk-based screening criteria

132 MDE Site Investigation (1990)

In 1990 surface soil and sediment samples were collected from the Site The samples were analyzed for VOCs total metals pesticides and PCBs Metals and PCBs were detected at concentrations exceeding the risk-based screening criteria During Site Investigation activities piles of scrap metal tanks and a three-to-eight foot deep pile of rubblefill were observed at the Site

133 EPA Expanded Site Inspection

An expanded Site inspection was conducted by EPA between 1991 and 1994 Soil sediment and surface water samples were collected and analyzed for VOCs SVOCs total metals pesticides and PCBs Analytical results indicated contamination of all three media at concentrations greater than the risk-based screening criteria During the expanded Site inspection activities field personnel observed that a majority of the Site had been covered to an approximate 10 foot depth with fill and debris Debris included a tractor trailer concrete bricks rebar tires drums furniture a curing oven broken asphalt empty 55-gallon drums and a 1000-gallon storage tank Oil sheens were observed in the wetlands

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HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

134 MDE Investigations (1996-2005)

Between 1996 and 2005 MDE completed the following field investigations

bull In 1996 soil sediment and surface water samples were collected and analyzed for metals and PCBs

bull In 1999 soil sediment surface water and groundwater samples were collected and analyzed for VOCs SVOCs metals pesticides and PCBs Surface water and groundwater samples were analyzed for total metals and dissolved metals

bull In 2001 five shallow monitoring wells were installed Soil sediment and groundwater samples were collected and analyzed for VOCs SVOCs metals pesticides and PCBs The groundwater samples were analyzed for total and dissolved metals A topographic survey of the Site and the surrounding lands was conducted

bull In 2002 surface water groundwater and soil samples were collected and analyzed for PCBs Field based screening assays were used to delineate PCB contamination in Site soils Water level monitoring was performed to assess the extent of tidal influence on the Site groundwater A wetlands survey was also completed

bull In 2004 soil samples were collected and analyzed for metals SVOCs pesticides and PCBs

bull In 2005 soil samples were collected and analyzed for PCBs The analytical results of these investigations indicated the presence of VOC SVOC metals pesticide and PCB contamination at concentrations greater than risk-based screening levels The primary contaminants were identified as lead and PCBs Based on the laboratory and field data two PCB ldquoHot Spotsrdquo were identified (one in the southeast and one in the south-central portion of the Site) Groundwater monitoring data indicated that the local groundwater gradient is towards the Back River However tidal influences have been observed in the pond and in four of the five ground water monitoring wells located on the Site

135 Extent of Contamination Study

In 2007 the Potentially Responsible Partiesrsquo (PRPsrsquo) contractor (Malcolm Pirnie) performed soil sediment and groundwater sampling activities to address data gaps identified from previous Site investigations Data gaps that were identified included

bull Delineation of PCB and lead contamination on Parcel 137 bull Background data for surface and subsurface soils east of the Site bull Surface soil analytical data for Parcels 503 and 464 bull Collection of additional sediment samples for PCB and lead analyses and bull Collection of surface water and groundwater samples

Site reconnaissance was performed prior to the initiation of sampling activities The results of these field activities are described below

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1351 Site Reconnaissance

An initial Site reconnaissance visit was performed by Malcolm Pirnie in December 2006 to determine the existing Site conditions Observations of the Site visit are listed below

bull Monitoring well MW-1 could not be located bull The Site was heavily vegetated bull The well annulus around monitoring well MW-4 was left open which might have

compromised the integrity of the well and bull Some of the proposed sampling locations were in asphalt-covered areas

Based on the observations from the initial Site visit a second Site visit was performed in January 2007 prior to the start of sampling activities During this Site visit the final planned locations of the field samples were identified In addition it was determined that all Site monitoring wells with the exception of MW-1 were compromised and should be overdrilled Because MW-1 could not be located this well was identified as requiring re-installation

1352 Soil and Sediment Sampling

In January 2007 32 surface soil and nine subsurface soil samples were collected The surface soil samples were analyzed for lead and PCBs The subsurface soil samples were collected from two to three feet bgs and analyzed for lead PCBs VOCs and SVOCs Nine sediment samples were collected with seven from the wetlands one from the pond area and one from the Back River The sediment samples were collected from the top six inches of sediments below the organic build-up and were analyzed for lead and PCBs The most commonly detected PCB compound was Aroclor 1260 which was detected in 25 of the 32 surface soil samples and eight of the nine subsurface soil samples Lead was detected in all of the surface and subsurface soil samples The highest lead and PCB concentrations were observed in the samples collected from the ldquoHot Spotrdquo locations Low concentrations of VOCs and SVOCs were detected in several of the subsurface soil samples

1353 Surface Water Sampling

In January 2007 two surface water samples were collected from the Back River shoreline These samples were co-located with sediment samples DG-SD08-05 and DG-SD09-05 The samples were collected soon after the peak of high tide and prior to sediment sampling activities to minimize elevated turbidity readings from re-suspended sediments The filtered and unfiltered surface water samples were analyzed for lead and PCBs Using EPA Method 8082 no PCBs were detected in the unfiltered and filtered samples Using the congener method (EPA Method 1668) PCBs were detected at low concentrations in both the filtered and unfiltered samples Lead was detected in one filtered sample and both unfiltered samples

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1354 Groundwater Monitoring Well Installation and Sampling

Well installation activities occurred in January 2007 Five wells were installed using the hollow stem auger method and were constructed of two-inch diameter polyvinyl chloride casing and screen In February 2007 groundwater samples were collected from the five monitoring wells and analyzed for total and dissolved lead and PCBs PCBs were detected only in the unfiltered sample from well MW-4 when the samples were analyzed using EPA Method 8082 When the samples were analyzed using EPA Method 1668 PCBs were detected in the filtered and unfiltered samples from all five wells Lead was detected in three unfiltered samples but not in any of the filtered samples

14 NATURE AND EXTENT OF CONTAMINATION

The analysis of the nature and extent of contamination as presented in this EECA is based on the soil and sediment data provided in the reports for the previous investigations identified in Section 13 The locations of the samples collected as part of these investigations are presented on Figure 13 Over the course of the 22 years of Site investigations and assessments 132 surface soil samples 216 subsurface soil samples 67 sediment samples 47 surface water and 28 groundwater samples have been collected (including duplicate field samples and quality control samples) The samples were collected from Parcels 137 295 425 464 503 and 574 The analytical results for the surface soil subsurface soil sediment surface water and groundwater samples are included in Appendix A as Tables A1 through A5 The nature and extent of contamination in Site soils and sediments are briefly summarized in the subsections below Because of the lack of ldquocleanrdquo perimeter samples (ie those showing no contamination or only background concentrations of Site contaminants) a precise delineation of the areal extents of the Site contamination could not be derived The impacted area referred to in this report should therefore be viewed as the estimated minimum extent of contamination

141 Surface and Subsurface Soil Contamination

The primary soil contaminants at the Site are metals (particularly lead) and PCBs Previous Site Investigation activities concluded that while most of the surface soils within the boundary of Parcel 425 had been impacted to some extent by Site contaminants there were two PCBlead ldquoHot Spotsrdquo within the area One was located along the southeastern boundary of Parcel 425 adjacent to Parcel 137 This ldquoHot Spotrdquo included portions of the Southeast Finger wetlands The other ldquoHot Spotrdquo was much smaller in size and was located in the south-central portion of the Site near the Back River wetlands PCB concentrations in the larger of these ldquoHot Spotsrdquo exceeded 1000 milligrams per kilogram (mgkg) with a maximum detection of 33000 mgkg Across the majority of the Site including the adjacent affected parcels PCB concentrations were substantially lower (orders of magnitude) than those observed in the ldquoHot Spotsrdquo

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Lead concentrations greater than 1000 mgkg and some detections even greater than 10000 mgkg were observed in the soil samples Other metals including arsenic chromium selenium vanadium and zinc were detected at substantially elevated concentrations Previous surface and subsurface soil sampling activities have shown that the access road to the Site and other areas of Parcel 503 and 464 have also been impacted by former Site activities along with areas of Parcel 137 Parcel 295 and Parcel 574 The extent of soil contamination above PRGs is presented graphically on Figure 14

142 Sediment Contamination

The primary sediment contaminants are also metals particularly lead and PCBs Multiple sediment samples had lead concentrations in excess of 500 mgkg Elevated concentrations of arsenic chromium and selenium were also detected in several sediment samples One of the aforementioned ldquoHot Spotsrdquo includes portions of the Southeast Finger wetlands which extend into Parcels 137 and 295 In addition elevated concentrations of Site contaminants have been detected in sediments from the Pond area and the Southwest Finger wetlands (located primarily on Parcel 574) and in the wetlands adjacent to the Back River Contaminant concentrations in excess of the PRGs were also detected in one Back River sediment sample that was collected in 1999 but given the time span since this sample was collected (over nine years) the mobile nature of river sediments (especially in a tidal location) natural attenuation and the presence of adjacent samples that do not exceed the PRGs additional sampling should be performed to determine whether and to what extent remediation of these sediments would be needed The extent of sediment contamination greater than PRGs is presented graphically on Figure 15

15 CONTAMINANT FATE AND TRANSPORT

This section summarizes the potential fate and transport pathways for the soil and sediment contaminants Detailed discussion of contaminant fate and transport including chemical-specific fate and transport characteristics can be found in the EOCS Report (Malcolm Pirnie 2007) The original contaminant sources were the waste and debris dumped at the Site The historical reports indicate that the majority of the surface and subsurface waste and debris has been removed from the Site However the debris which remains at the Site could be a continuing source of contamination In addition contaminated soils and sediments act as a source of contamination for groundwater and surface water The contaminated soils might also be a continuing source for sediment contamination Potential migration pathways include surface soil erosion precipitation infiltration surface water flow sediment movement and groundwater flow Each of the potential migration pathways is briefly described below Contaminants in surface soils could migrate by erosion and overland flow during storm events or by leaching with infiltrating precipitation The primary contaminants metals and PCBs

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US EPA Region 3 Sauer Dump Site EECA 1-8 HydroGeoLogic Inc April 2009

tend to associate with soil particles causing them to be more susceptible to erosion Contaminants associated with soil particles might also become entrained in air if dust is generated Wind can transport these airborne particulates The potential for dust emissions depends upon the extent to which the Site is vegetated Volatile compounds in soils may volatilize into ambient air Soluble contaminants could leach from surface soils to subsurface soils with infiltrating precipitation This leaching process can transport the contaminants to the groundwater Once dissolved within the groundwater the contaminants will migrate via advection dispersion and diffusion Sorption to or association of contaminants with solid surfaces can retard the leaching of contaminants to and transport of contaminants within the groundwater Contaminants sorbed to sediment particles could be transported by erosional processes during storm events Contaminants dissolved in the water contained within the sediment interstitial spaces will move with the water flux through the sediments For sediments along the Back River shoreline associated contaminants might dissolve directly into the surface water and migrate with the riverrsquos flow The Site contaminants can also be transformed by a variety of processes Metals may be transformed to more or less soluble forms by changes in reductive oxidation (redox) conditions Metals and organic compounds can also accumulate in the tissues of plants and animals Some organic compounds might be degraded by microbial or chemical processes The primary organic contaminant PCBs tends to be recalcitrant to degradation reactions

16 SUMMARY OF BASELINE RISK ASSESSMENT

As part of the MDE 2002 Site Investigation a Baseline Risk Assessment (BLRA) was prepared (ENSAT 2002b) The BLRA assessed potential threats to non-residential receptors (adult visitor youth visitor child visitor and construction worker) exposed to the Site contaminants Exposure of these receptors to soil contaminants was associated with potential cancer risks greater than 1E-04 and hazard indices greater than 1 The potential effects due to lead exposure were not quantified However the BLRA noted that some lead detections significantly exceeded the recommended residential soil screening value of 400 mgkg and concluded that there was potential for the lead contamination to cause adverse effects The BLRA determined that exposure of the child visitor to contaminants in the Site sediments resulted in a non-cancer Hazard Index (HI) greater than 1 indicating the potential for adverse effect The BLRA did not include an analysis of potential effects of soil contaminants on ecological receptors The sediment data were screened against ecological benchmarks Based on this screening the BLRA concluded that the PCBs in sediments might pose a threat to ecological receptors

AR103650

FIGURES

AR103651

XEPA010SauerCost_Analysis_Draftlocation_mapmxdMap Source USGS Quadrangle MapMiddle River MD 1996111008 PD Figure 11

Site Location Map

Former Sauer Dump

HGLmdashRevised Draft Engineering EvaluationCost Analysis Former Sauer Dump and Salvage YardmdashDundalk Maryland

[_

FormerSauer Dump

MARYLAND

General Location Inset

0 50 100

Miles

0 3000 60001500

SCALE IN FEETsup3

AR103652

Parcel 425

Parcel 137

Parce

l 295

Parce

l 464

Parce

l 503

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

XEPA010SauerCost_Analysis_Draftsite_mapmxdMap Source NAIPMiddle River MD 2007111008 PD

Figure 12Site Detail Map

HGLmdashRevised Draft Engineering EvaluationCost Analysis Former Sauer Dump and Salvage YardmdashDundalk Maryland

sup3 0 100 20050

SCALE IN FEET

Legend

Surveyed Wetlands(ENSAT 2005)

Parcel Boundary

AR103653

Figure 13Historic

Sample Locations

HGLmdashRevised Draft Engineering EvaluationCost Analysis Former Sauer Dump and Salvage YardmdashDundalk Maryland

Legend

XEPA010SauerCost_Analysis_DraftHistoric_Sample_Loc_LmxdMap Source NAIPMiddle River MD 2007111008 PDsup3

$+

$+

$+

$+

$+

$+

$+$+

$+$+

$+

$+$+

$+

$+

$+

$+

$+$+

$+$+

$+$+$+$+

$+ $+$+

$+

$+$+

$+$+

$+$+

$+

$+ $+

$+

$+

$+

$+

$+$+$+$+$+

$+$+$+

$+$+

$+

acute

acute

acute

acute

acute

(

( (((

(

((

XW

XW

XW

XW

XW

XW

XW

XWXW

XWXW

XW

XWXWXWXWXWXWXW XW XW

XWXWXWXWXWXWXWXWXWXWXW

XWXWXWXWXWXWXWXWXW

XWXWXWXWXWXW

XW

XW

Parcel 425

Parcel 137

Parcel 2

95Parcel 4

64Parcel 5

03

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 120 24060

SCALE IN FEET

Surveyed Wetlands(ENSAT 2005)

Parcel Boundary

Surface and Subsurface Soil SampleXW

Groundwater Sample

Surface Water Sample(

Surface Soil Sample

Subsurface Soil Sample

Sediment Sample$+

AR103654

Legend

Figure 14Extent of Contamination

for Soils(Surface and Subsurface)

XEPA010SauerCost_Analysis_DraftSoils_Contamination_11x17mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

XW

XW

XW XWXWXWXWXW XW

XW

XW

XWXWXWXWXWXWXWXWXWXW

XW

XWXWXW

XWXWXW

XWXW

XW

XW

XW

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Subsurface Soil Sample Exceeding PRG

Surface Soil Sample Exceeding PRG

Parcel Boundary

Surveyed Wetlands(ENSAT 2005)

NotesAll soil samples shown on figure contained oneor more PRG exceedances

Grid Soil Samples

Surface and Subsurface Soil SampleExceeding PRGXW

AR103655

Legend

Figure 15Extent of Contamination

in Sediment

XEPA010SauerCost_Analysis_DraftSediment_Contamination_11x17bmxdMap Source NAIPMiddle River MD 2007022609 PD

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

$

$

$

$

$$

$

$

$

$$

$$$

$$

$

$

$$

$

$$

$

$

$$

$

+

+

+

+

++

+

+

+

++

+++

++

+

+

++

+

++

+

+

++

+

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$$$

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+++

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

Surveyed Wetlands(ENSAT 2005)

Sediment Samplewith Lead lt 130 ppmand PCBs lt 100 ppm

$+

Sediment Samplewith Lead gt 130 ppmor PCBs gt 100 ppm

$+

Proposed Limits of Excavationfor Sediment

AR103656

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

20 REMOVAL OBJECTIVES

This section identifies the removal objective and goals for the Site The removal objectives are described in Section 21 This is followed by identification of the potential ARARs with which the selected removal alternative must comply To provide target cleanup levels that ensure the removal objectives will be met quantifiable PRGs are then presented Finally these PRGs are used to estimate the volume of contaminated materials that might require remediation

21 REMOVAL OBJECTIVES

The following removal objectives were identified

bull Reduce exposure to non-carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

bull Reduce exposure to carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

bull Reduce risks to human health and ecological communities exposed directly to chemicals in the soils and sediments and indirectly to these chemicals via bioaccumulation in fish in the receiving waters

bull Minimize the further spread of contamination via any of the following major migration pathways deg Soils to groundwater deg Soils to surface water deg Soils to sediments deg Soils to air deg Groundwater to surface water and deg Sediments to surface water

22 IDENTIFICATION OF POTENTIAL APPLICABLE OR RELEVANT AND APPROPRIATE REQUIREMENTS

The EPA document Conducting Non-Time-Critical Removal Actions Under CERCLA (1993) specifies that the EECA should evaluate each removal alternative in terms of its ability to comply with the substantive standards of potential ARARs Federal and state regulations were reviewed to identify potential ARARs and To Be Considered (TBC) criteria ARARs include

bull Any standard requirement criterion or limitation under any Federal environmental law such as the Toxic Substances Control Act (TSCA) the Clean Air Act (CAA) the Clean Water Act (CWA) the Marine Protection Research and Sanctuaries Act (MPRSA) and the Resource Conservation and Recovery Act (RCRA)

bull Any promulgated standard requirement criterion or limitation under a state environmental or facility siting law including those contained in EPA-approved programs which has been identified by the state to EPA in a timely manner

US EPA Region 3 Sauer Dump Site EECA 2-1 HydroGeoLogic Inc April 2009

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ARARs consist of two sets of requirements those that are applicable and those that are relevant and appropriate Applicable requirements are those substantive standards that specifically address the situation at a CERCLA site However an applicable requirement need not have been promulgated specifically to apply to CERCLA sites When making a determination of the applicability of a requirement the site circumstances are compared to the following jurisdictional prerequisites

bull Who is subject to the statute or regulation bull What types of substances or activities fall under the authority of the statute or

regulation bull What is the time period for which the statute or regulation is in effect and bull What types of activities does the statute or regulation require limit or prohibit

If this comparison indicates that the site circumstances are consistent with these prerequisites the requirement is applicable Requirements that are not applicable must be evaluated further to determine whether they are relevant and appropriate Requirements that address situations sufficiently similar to the proposed response action and are well suited to the conditions of the site are considered to be relevant In some cases only portions of a requirement will be both relevant and appropriate In addition to the ARARs information that is provided in certain federal and state criteria advisories guidance and proposed standards though not legally enforceable can be helpful in selecting a removal action andor determining how protective the removal action will be These ldquoto be consideredrdquo (TBC) requirements complement the use of ARARs but do not compete with or replace them (EPA 1992) Potential chemical-specific location-specific and action-specific ARARs for the Site along with potential TBC requirements are summarized in Table 21 These ARARs and TBC requirements are considered potential because they become final only after the EECA is approved and issued The following sections provide additional details on potential federal and state ARARs and TBC requirements for the Site

221 Chemical-Specific ARARs

As stated in 52 Federal Register 32496 chemical-specific ARARs typically ldquoset health or risk-based concentration limits or discharge limitations in various environmental media for specific hazardous substances pollutants or contaminantsrdquo These ARARs may address contaminants in the specific media of concern (soils and sediments in this case) or contaminants in waste streams generated by a removal alternative The potential chemical-specific ARARs are described below

Toxic Substances Control Act - TSCA regulates chemical substances and mixtures whose manufacture processing distribution or disposal might present an unreasonable risk of injury

US EPA Region 3 Sauer Dump Site EECA 2-2 HydroGeoLogic Inc April 2009

AR103658

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

to human health and the environment Portions of TSCA (specifically 40 CFR Part 761) address PCB cleanup levels remediation methods and remediation waste and are applicable to this Site 40 CFR sect 76161 provides cleanup and disposal options for PCB remediation waste and includes self-implementing procedures for a general moderately-sized site where there should be low residual environmental impact from remedial activities 40 CFR sect 76161(a)(1) indicates that the listed ldquoself-implementing proceduresrdquo are not binding on CERCLA actions and may not be used without prior EPA approval to clean up among other things sediments surface water groundwater or drinking water sources However these ldquoself-implementingrdquo provisions are relevant and appropriate for consideration when selecting a cleanup alternative for this Site

Resource Conservation and Recovery Act - RCRA as amended 42 USC sectsect6901 et seq defines hazardous waste and regulates its handling and disposal RCRA could be applicable to the Sauer Dump Site because some of the Site soils and sediments may be hazardous and would require handling storage treatment and disposal as hazardous wastes In addition it is possible that spent carbon from any off-gas or sediment dewatering treatment units might be considered a hazardous waste

Clean Air Act - The CAA governs air emissions generated by removal or remedial activities at CERCLA sites National Ambient Air Quality Standards (NAAQS) that are found in 40 CFR Part 50 have been promulgated under the CAA for six criteria pollutants including airborne particulates Air quality standards that would potentially be applicable to the Site include those for lead and particulate matter The associated Maryland Implementation Plans for the Attainment and Maintenance of NAAQS (40 CFR Part 52 sectsect 1070-1118 Subpart V) codify Marylandrsquos Implementation Plan for attaining the NAAQS The CAA is applicable to any remedy that causes the emission of pollutants including airborne particles In particular dust suppression measures must be included in any remedy that involves constructionearth moving activities

Clean Water Act - The CWA sets water quality criteria at levels that are protective of human health and of aquatic life in streams lakes and rivers CWA criteria will be considered applicable for the removal alternatives that might affect the water quality in the nearby wetlands or Back River These alternatives would include removal technologies that could impact stormwater quality or that generate water requiring discharge

Code of Maryland Regulations (COMAR) Title 26 - Title 26 of COMAR is promulgated by MDE and the relevant provisions which may be applicable or relevant and appropriate for consideration at the Site are listed below

bull COMAR 2608 Water PollutionndashThis regulation establishes criteria and standards for

discharge limitations and degradation of waters of the state It is potentially applicable to any alternatives that include discharge of treated groundwater into surface water

bull COMAR 2611 Air Regulations-This regulation provides ambient air quality standards general emissions standards and restrictions for air emissions from construction

US EPA Region 3 Sauer Dump Site EECA 2-3 HydroGeoLogic Inc April 2009

AR103659

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

bull COMAR 2613 Disposal of Controlled Hazardous SubstancesndashProvides criteria to identify hazardous waste and listed waste including Maximum Concentrations of Contaminants for the Toxicity Characteristic

222 Location-Specific ARARs

Location specific ARARs are restrictions on certain types of activities based on Site characteristics Location-specific ARARs govern activities conducted within critical environments such as wetlands endangered or protected species habitats and historic locations

Coastal Zone Management Act (16 USC sectsect 1451 et seq) and Coastal Zone Act Reauthorization Amendments of 1990 - This Act and its Amendments require that any activities that directly affect the coastal zone and are conducted or supported by federal agencies be performed in a manner that is consistent with the approved state coastal zone management program Because the Sauer Dump Site is located in the Maryland coastal zone both the Act and the related Amendments are applicable to the Site All activities must be performed to the extent practicable in a manner consistent with Marylandrsquos coastal zone management program and MDE must be consulted during EPArsquos determination of whether the activities are appropriate

National Recommended Water Quality Criteria (NRWQC) - The National Recommended Water Quality Criteria are a compilation of all EPArsquos recommended ambient water quality criteria for the protection of aquatic life and human health (EPA 2006) These criteria are applicable to the Site because the groundwater discharges to the Back River and Site sediments and soils currently impact surface water quality in the Back River

COMAR 262302 ndash Provides for a comprehensive watershed management plan to protect from an individual or cumulative effect that degrades the sensitive nature of the aquatic ecosystem This provision could be applicable to any alternative that could have a detrimental impact on water quality standards or which degrades surface or ground water quality

223 Action-Specific ARARs

Action-specific ARARs are usually technology or activity based directions or limitations that control actions taken at hazardous waste sites Action-specific ARARs are triggered by the types of actions under consideration Potential action-specific ARARs are identified below Resource Conservation and Recovery Act ndash RCRA could be applicable to various activities that could be part of a removal alternative because some of the Site soils and sediments might be classified as hazardous waste If the chosen removal alternative results in generation of a waste stream the substantive standards of RCRA could apply to that waste stream The following parts of the RCRA regulations are considered potentially applicable to the activities at the Sauer Dump Site

US EPA Region 3 Sauer Dump Site EECA 2-4 HydroGeoLogic Inc April 2009

AR103660

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

bull 40 CFR Part 261 defines hazardous waste and identifies characteristic and listed wastes

that would be considered hazardous bull 40 CFR sectsect 26210-44 establish standards for hazardous waste determinations

manifesting pre-transport requirements and other activities that are carried out by hazardous waste generators

bull 40 CFR sectsect 264111-120 establish standards for the closure of and post-closure care for sites containing hazardous wastes

bull 40 CFR sectsect 264300-310 establish standards for owners and operators of facilities that store or dispose of hazardous waste in landfills These sections are applicable to remedies that include landfilling (on-site or off-site) of contaminated soils and sediments

bull 40 CFR sectsect 264340-351 establish standards for owners and operators of facilities that store or treat hazardous waste in incinerators These sections are applicable to remedies that include low temperature thermal desorption andor incineration of soils and sediments

bull 40 CFR sectsect 26310-31 establish standards applicable to transporters of hazardous waste bull 40 CFR Part 270 establishes the hazardous waste permit program The substantive

requirements of the permit program would be met but no permit would be obtained for on-site activities Any off-site treatment andor disposal options proposed as part of a removal alternative must include use of a RCRA-permitted treatment storage or disposal facility for materials determined to be hazardous

US Department of Transportation Hazardous Material Regulations (49 CFR Parts 171-174 177 178 and 180) - These regulations establish requirements for labeling packaging and shipping hazardous materials All hazardous wastes that are transported off-site must be handled in accordance with these regulations

National Pollutant Discharge Elimination System Requirements (40 CFR Part 122 - These regulations implement sectsect 318 402 and 405 of CWA 33 USC sectsect 1251 et seq and address all pollutant discharges into the nationrsquos waters Wastewater generated during construction activities or as part of a selected treatment option must be managed in accordance with the substantive requirements of CWA

COMAR Title 26 - The following regulations in Title 26 of COMAR are potential action-specific ARARs at the Site

bull COMAR 2602 Occupational Industrial and Residential Hazards ndash Provides limits on

the maximum allowable levels of noise at the Site boundaries during Site remediation work to protect the health general welfare and property of the people of the State

bull COMAR 2604 Regulation of Water Supply Sewage Disposal and Solid Wastendash Provides specifications for well construction and abandonment and for proper closure and post closure monitoring and maintenance of landfills

US EPA Region 3 Sauer Dump Site EECA 2-5 HydroGeoLogic Inc April 2009

AR103661

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

bull COMAR 2613 Disposal of Controlled Hazardous Substances ndash Provides for the design installation and operation of a groundwater monitoring system capable of detecting any potential off-site migration of hazardous substances

bull COMAR 2617 Water Management ndash Requires that any land clearing grading or other earth disturbances which disturb over 5000 square feet of land area and over 100 cubic yards of earth have an erosion and sediment control plan Provides that stormwater must be managed to prevent off-site sedimentation

Occupational Safety and Health Administration (OSHA) Hazardous Waste Operator Regulations (29 CFR Parts 1904 1910 and 1926) - These regulations establish requirements for personnel working on projects involving the handling andor disposal of hazardous wastes Although the OSHA regulations are not ARARs all work performed at the Site must be done in accordance with these regulations All workers with a potential to be exposed to hazardous substances as a result of their work on Site activities must be properly trained and certified as required under these regulations

224 To Be Considered Materials

The following are sources of information that are to be considered during the development of a remedy for the Sauer Dump Site

Oak Ridge National Laboratory Regional Screening Levels - The Oak Ridge National Laboratory (ORNL) Regional Screening Levels (RSLs) provide soil concentrations that are associated with a cancer risk of 1E-06 or a non-cancer hazard quotient of 1 for a standard resident exposure (residential soil RSLs) or industrial worker exposure (industrial soil RSLs) In addition this table provides toxicological information that can be used in the development of PRGs to protect human health

Oak Ridge National Laboratory Ecotoxicological Screening Benchmarks (1997) - This document provides non-enforceable ecological toxicity screening levels considered protective of different ecological receptors These values will be considered in the development of ecological PRGs for the Sauer Dump Site

EPA Ecological Soil Screening Levels - For a number of chemicals EPA has developed soil concentrations that are considered protective of different ecological receptors These values will be considered in the development of ecological PRGs for the Sauer Dump Site

Maryland Department of the Environment Residential Soil Cleanup Standards - These standards include an approach to develop numeric Cleanup Standards for hazardous substances in soils and provide information on use of the Standards in the conduct of remedial actions Information in these standards will be used in the development of PRGs

1994 Revised Interim Soil Lead Guidance for CERCLA Sites and RCRA Corrective Action Facilities August 1998 - This guidance establishes cleanup criteria for lead in soils These criteria will be considered in the development of lead PRGs

US EPA Region 3 Sauer Dump Site EECA 2-6 HydroGeoLogic Inc April 2009

AR103662

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

National Oceanographic and Atmospheric Administration Effects Range-Low Benchmarks - The Effects Range-Low benchmark values indicate sediment concentrations below which adverse effects to the benthic organisms rarely occur They serve as non-enforceable ecological toxicity screening levels These values will be considered in the development of ecological PRGs for the Sauer Dump Site

EPA Region III Freshwater Sediment Screening Values - The EPA Region III Freshwater Sediment screening values provide sediment concentrations conservatively determined to be protective of benthic organisms These benchmarks will be considered in the development of sediment PRGs

23 DETERMINATION OF PRELIMINARY REMEDIAL GOALS AND DESCRIPTION OF CONTAMINATED MEDIA

231 Development of Preliminary Remedial Goals (PRGs)

PRGs are concentrations used as initial cleanup goals to support the development and evaluation of different remedial approaches PRGs are not the final cleanup standards The following PRGs were used to identify the area and volume of contaminated media to be addressed by the EECA

bull 400 mgkg lead in soils bull 1 mgkg total PCBs in soils bull 1 mgkg total PCBs in sediments and bull 130 mgkg lead in sediments

The PRGs for lead and total PCBs in soils are consistent with other sites within EPA Region III where remediation goals of 400 mgkg lead and 1 mgkg PCBs in soils have been established based on results of those sitesrsquo baseline risk assessments The PRG for PCBs in sediments 1 mgkg is based on the practical engineering limitations of available dredging technologies For sediments the lead PRG of 130 mgkg reflects consideration of Development and Evaluation of Consensus-Based Sediment Quality Guidelines for Freshwater Ecosystems (MacDonald et al 2000) as noted in the August 2007 Action Memorandum (EPA 2007) The surface water PRGs are based on NRWQC The Freshwater Chronic values of 0000064 ugl total PCBs and 81 ugl lead were selected for surface water at this Site Because groundwater at the Site will not be used as a source of drinking water the primary concern is to ensure that groundwater contaminants do not discharge to surface water at concentrations which would result in impairment of the surface water quality Accordingly the Freshwater Chronic NRWQC are also appropriate as the groundwater PRGs The surface water and groundwater PRGs are provided in Table 22

US EPA Region 3 Sauer Dump Site EECA 2-7 HydroGeoLogic Inc April 2009

AR103663

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

232 Volume Estimates ndash Soils and Sediments

To determine the volume of soils and sediments requiring remediation data from the following reports were used RIFFS Report (ENSAT 2002a) RI Report (ENSAT 2005) and EOCS Report (Malcolm Pirnie 2007) The data in these reports were compared to the PRGs presented in Table 22 Subsurface data were used to estimate the vertical extent of contamination requiring remediation The depth of the remedial volume is based on comparison of soil contaminant concentrations to both human health and ecological PRGs even though under current conditions these receptors would not be exposed to the subsurface contaminants In the future construction activities could result in turn over of the soils leading to the exposure of subsurface soils and thereby allowing ecological receptors (worms plants fish and wildlife) and non-construction worker receptors (child visitor) to come into direct contact with the associated contaminants If the remedial volume does not consider this subsurface contamination then land use controls to prevent all future construction and excavation activities at the Site would be required Locations and depths where contaminants were detected at concentrations in excess of the PRGs are included in the estimated area and volume requiring remediation The lateral extent of soil contamination greater than PRGs was estimated from the surface soil data When calculating the volume of soils requiring remediation it is typically assumed that future construction could be reasonably expected to disturb soils as deep as 10 to 12 feet or to the average depth of the groundwater table in the area in question Where no subsurface soil data were available the depth of contamination requiring remediation was generally assumed to be 8 feet bgs In the southern portion of Parcel 425 a depth of 35 feet was assumed based on data defining the depth to groundwater On Parcel 137 an average remediation depth of 4 feet was assumed The available data indicate that portions of Parcels 137 295 425 464 503 and 574 are characterized by soil contamination in excess of the PRGs (Figures 14 and 15) The estimated maximum volume of Site soils requiring remediation is approximately 16760 cubic yards For sediments the remedial volume was based on an assumed remediation depth of 4 feet in areas with wetland vegetation It is estimated that a total of 7740 cubic yards of sediments will require remediation Additional sediment volumes from the Back River might require remediation but the only sample that showed concentrations greater than those proposed for the Site was collected in 1999 There have been other samples in the immediate area of this sample that did not have PCBs in excess of the PRGs and it is likely that the sediments that were sampled in 1999 have been washed to other areas given the tidal and stream transport that would have occurred since that time Additional sampling of the Back River sediments should be performed to confirm that the sediments do not exceed the PRGs

US EPA Region 3 Sauer Dump Site EECA 2-8 HydroGeoLogic Inc April 2009

AR103664

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 2-9 HydroGeoLogic Inc April 2009

Table 23 summarizes the estimated area and volume of soils and sediments requiring remediation

233 Groundwater Management

Based on observed groundwater elevations across the Site groundwater is generally assumed to flow from north to south across the Site with discharge into the Back River However groundwater is influenced by the tidal movements of the Back River Consequently in those alternatives where a groundwater management feature was required the use of point extraction wells was avoided to minimize the extraction and treatment of water from the Back River and the adjacent wetlands In these instances gravel filled groundwater recovery trenches were specified to capture Site groundwater prior to its discharge into the river

AR103665

TABLES

AR103666

Table 21 Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 1 of 10

HydroG

eoLogic Inc A

pril 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

ARAR or TBC Citation ARAR Class Requirement Synopsis Applicability to Proposed Remedies

I CHEMICAL SPECIFIC Toxic Substances Control Act (TSCA)

15 USC sectsect 2601 et seq 40 CFR Part 761

Applicable TSCA regulates chemical substances and mixtures whose manufacture processing distribution or disposal might present an unreasonable risk of injury to human health and the environment

Portions of the TSCA deal specifically with PCB remediation waste The self-implementation requirements are not binding on CERCLA actions and may not be used to address contamination in sediments surface water or groundwater without EPA approval TSCA also provides performance-based and risk-based methods for addressing PCB-contaminated remediation waste

Resource Conservation and Recovery Act of 1976 Hazardous and Solid Waste Amendments of 1984

42 USC sectsect6901 et seq

Applicable Identifies what constitutes a hazardous waste

Some of the Site soils and sediments may be hazardous and would be treated as hazardous wastes Spent carbon from any off-gas treatment units might be considered a hazardous waste

Clean Air Act 42 USC sect7401 40 CFR Part 50

Applicable NAAQS are promulgated under the CAA for six criteria pollutants including airborne particulates

CAA is applicable to any remedy that causes the emission of pollutants including airborne particles Air quality standards potentially applicable to the Site include those for lead and particulate matter

Maryland Implementation Plans for the Attainment and Maintenance of National Ambient Air Quality Standards

40 CFR Part 52 sectsect 1070-1118 Subpart V

Applicable Codify Marylandrsquos Implementation Plan for attaining the NAAQS

Applicable to determining compliance with the CAA

Maryland air quality regulations

COMAR 2611 Applicable Promulgates air quality regulations for Maryland

Requirements for emissions of toxic air pollutants and particulates are potentially applicable to Site remedies involving soil excavation or on-site treatment of media

US E

PA

Region 3

AR103667

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 2 of 10

H

ydroGeoL

ogic Inc April 2009

H

GLmdash

Sauer Dum

p Revised D

raft Engineering E

valuationCost A

nalysismdashD

undalk Baltim

ore County M

D

ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

Clean Water Act (CWA)

33 USC sectsect 1251 et seq

Applicable Water quality criteria set at levels to protect human health and aquatic life in streams lakes and rivers

Applicable to any portion of remedy which may affect the water quality in the nearby wetlands or Back River This includes remedial construction activities that could impact stormwater quality and remedies that generate water requiring discharge

Maryland Water Pollution Regulations

COMAR 2608 Applicable Establishes criteria and standards for discharge limitations and policy for anti-degradation of waters of the State

Potentially applicable to any remedies that have impact on the Sitersquos groundwater and surface water include discharge to surface or ground water

Maryland Disposal of Controlled Hazardous Substances

COMAR 2613 Applicable Provides criteria to identify hazardous waste and listed waste including Maximum Concentrations of Contaminants for the Toxicity Characteristic

Some of the Site soils and sediments may be hazardous and would be treated as hazardous wastes

National Recommended Water Quality Criteria

NA Applicable Provides a compilation of ambient water quality criteria for the protection of aquatic life and human health

Applicable to groundwater that discharges to the Back River and to the surface water of the Back River itself

ORNL RSLs NA To be considered

Non-enforceable soil concentrations that are protective of human health under a given set of exposure circumstances (residential vs industrial)

The ORNL RSLs provide soil concentrations that are associated with a cancer risk of 1E-06 or a non-cancer hazard quotient of 1 for a standard resident exposure (residential soil RSLs) or industrial worker exposure (industrial soil RSLs) In addition this table provides toxicological information that can be used in the development of PRGs to protect human health

ORNL Ecotoxicological Screening Benchmarks

NA To be considered

Provides non-enforceable benchmark values protective of specific ecological receptors

These benchmarks will be considered in the development of ecological PRGs for the Sauer Dump Site

US E

PA

Region 3

AR103668

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 3 of 10

H

ydroGeoL

ogic Inc April 2009

H

GLmdash

Sauer Dum

p Revised D

raft Engineering E

valuationCost A

nalysismdashD

undalk Baltim

ore County M

D

ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

EPA Ecological Soil Screening Levels

NA To be considered

Non-enforceable screening levels protective of specific ecological receptors

These benchmarks will be considered in the development of ecological PRGs for the Sauer Dump Site

Maryland Department of the Environment (MDE) Residential Soil Cleanup Standards

State of Maryland Department of the Environment cleanup Standards for Soil and Groundwater August 2001

To be Considered

Include approach to develop numeric Cleanup Standards for hazardous substances in soils and provide information on use of the Standards in the conduct of remedial actions

Will be considered in development of soil PRGs

1994 Revised Interim Soil Lead Guidance for CERCLA Sites and RCRA Corrective Action Facilities August 1998

OSWER Directive 92004-27P

To be Considered

Establishes cleanup criteria for lead in soils

Will be considered in development of soil PRGs

National Oceanographic and Atmospheric Administration Effects Range-Low Benchmarks

NA To be Considered

The Effects Range-low benchmark values indicate the concentrations below which adverse effects to the benthic organisms rarely occur They serve as non-enforceable ecological toxicity screening levels for use in determining ecological PRGs

These values will be considered in the development of ecological PRGs for the Sauer Dump Site

US E

PA

Region 3

AR103669

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 4 of 10

H

ydroGeoL

ogic Inc April 2009

H

GLmdash

Sauer Dum

p Revised D

raft Engineering E

valuationCost A

nalysismdashD

undalk Baltim

ore County M

D

ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

EPA Region III Freshwater Sediment Screening Values

To be Considered

These values provide conservative benchmarks for the protection of benthic organisms

These values will be considered in the development of ecological PRGs for the Sauer Dump Site

II LOCATION SPECIFIC Coastal Zone Management Act of 1972 Coastal Zone Act Reauthorization Amendments of 1990

16 USC 1451 et seq 15 CFR Part 930

Applicable Requires that activities directly affecting the coastal zone that are conducted or supported by federal agencies are conducted in a manner that is consistent with the approved State coastal zone management program

Because the Sauer Dump Site is located in the Maryland coastal zone both the Act and the related Amendments are applicable to the Site Removal action activities will be consistent to the maximum extent practicable with Marylandrsquos coastal zone management program

Maryland Nontidal Wetlands and Tidal Wetlands

COMAR 262302 Applicable Provides for a comprehensive watershed plan to protect from an individual or cumulative effect that degrades the sensitive nature of the aquatic ecosystem

Removal activities to address sediment contamination would likely affect wetlands

III ACTION SPECIFIC Resource Conservation and Recovery Act

40 USC sectsect 6901 et seq

See below See below RCRA could be applicable to various activities that could be part of a selected remedy for the Site because Site soils might be hazardous These regulations are applicable to contaminated Site materials as well as wastes generated during the implementation of the selected remedy The following parts of the RCRA regulations are considered applicable to the activities at the Site if the soils and sediments and debris meet the definition of hazardous waste

US E

PA

Region 3

AR103670

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 5 of 10

H

ydroGeoL

ogic Inc April 2009

H

GLmdash

Sauer Dum

p Revised D

raft Engineering E

valuationCost A

nalysismdashD

undalk Baltim

ore County M

D

ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

a Standards Applicable to Generators of Hazardous Waste

40 CFR sectsect 26210-58 Applicable Establishes standards for generators of hazardous wastes including waste determination manifests and pre-transport requirements

Applicable to contaminated Site materials and wastes generated during the implementation of the selected remedy

b Standards for closure and post-closure of hazardous waste sites

40 CFR sectsect 264111-120 Applicable Establish standards for the closure of and post-closure care for sites containing hazardous wastes

Applicable to Alternatives 2 and 3

c Standards for owners and operators of facilities that store or dispose of hazardous waste in landfills

40 CFR sectsect 264300-310 Applicable Requirements for storage or disposal of hazardous waste in landfills

Applicable to on-site or off-site landfilling of soils and sediments

d Standards for owners and operators of facilities that store or treat hazardous waste in incinerators

40 CFR sectsect 264340-351 Applicable Requirements for storage or treatment of hazardous waste in incinerators

Applicable to low temperature thermal desorption andor incineration of soils and sediments

e The Hazardous Waste Permit Program

40 CFR Part 270 Applicable Requires a permit for the treatment storage or disposal of any hazardous waste as identified or listed in Part 261

Any substantive requirement would be met but no permit would be required for on-site activities Any off-site treatment andor disposal options proposed as part of a removal alternative must include use of a RCRA-permitted treatment storage or disposal facility for materials determined to be hazardous

f Standards Applicable to Transporters of Hazardous Wastes

40 CFR sectsect 26310-31 Applicable Establishes standards applicable to transporters of hazardous waste

Applicable to any hazardous wastes (soils sediments spent media etc) transported off-site

US E

PA

Region 3

AR103671

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 6 of 10

H

ydroGeoL

ogic Inc April 2009

H

GLmdash

Sauer Dum

p Revised D

raft Engineering E

valuationCost A

nalysismdashD

undalk Baltim

ore County M

D

ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

g Identification and Listing of Hazardous Wastes

40 CFR Part 261 Applicable Defines hazardous waste and identifies characteristic and listed wastes that would be considered hazardous

Would be used to make waste determinations

Occupational Safety and Health Administration (OSHA) Hazardous Waste Operator (HAZWOPER) Regulations

29 CFR Parts 1904 1910 and 1926

Not and ARAR but must be complied with

Establishes worker training and safety requirements for projects involving the handling of hazardous materials

All work on the Site would be done in accordance with these regulations All workers with a potential to be exposed to hazardous substances as a result of their work on Site activities must be properly trained and certified as required under these regulations

US Department of Transportation (DOT) Hazardous Material Regulations

49 CFR Parts 171-174 177 178 and 180

Applicable Establishes requirements for labeling packaging and transporting hazardous materials

Any hazardous materialswastes that are shipped off-site would be handled in accordance with DOT regulations

Clean Water Act (CWA) and National Pollutant Discharge Elimination System Requirements

33 USC sectsect 1251 et seq 40 CFR Part 122

Applicable Address all pollutant discharges into the nationrsquos waters

Wastewater generated during construction activities or as part of a selected treatment option would be managed in accordance with CWA

Maryland Regulations governing Occupational Industrial and Residential Hazards

COMAR 2602 Applicable Provides limits on maximum noise levels allowed during site remediation work

Applicable to any potential soil or sediment remedies involving construction or other noisy equipment

Maryland Regulation of Water Supply Sewage Disposal and Solid Waste

COMAR 2604 Applicable Regulates the construction and operation of solid waste landfills and the construction and abandonment of wells

Potentially applies to remedies that involve off-site disposal or on-site containment of solid wastes Applies to construction or abandonment of groundwater wells and releases to groundwater or surface water

US E

PA

Region 3

AR103672

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 7 of 10

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

ARAR or TBC Citation ARAR Class Requirement Synopsis Applicability to Proposed Remedies

Maryland Disposal of Controlled Hazardous Substances

COMAR 2613 Applicable Establishes standards for generators of hazardous waste and provides regulation for the transport and disposal of hazardous waste

Some of the soils and sediments on-site may be characterized as hazardous waste Transportation and disposal of these wastes would comply with the substantive requirements of these regulations

Maryland Water Management

COMAR 2617 Applicable Requires that any land clearing grading or other earth disturbances that covers over 5000 sq ft and over 100 CY of soil have an erosion and sediment control plan

Potentially applicable to remedies with large areavolume of soil disturbance such as soil removal or surface cap construction

AR103673

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Table 22

Preliminary Remediation Goals for Sauer Dump Site

US EPA Region 3 Sauer Dump Site EECA Sheet 1 of 1 HydroGeoLogic Inc April 2009

Chemical PRG Basis of PRG Soil

Total PCBs 1 ppm TSCA Cleanup Levels for High Occupancy Areas and

Accepted Region III Practice

Lead 400 mgkg EPA Residential Soil Screening Levels for Lead (EPA

1994) and Accepted Region III Practice Sediments

Total PCBs 1 ppm Practical engineering limitations of dredging

technologies and Accepted Region III Practice

Lead 130 mgkg Development and Evaluation of Consensus-Based

Sediment Quality Guidelines for Freshwater Ecosystems (MacDonald et al 2000)

Surface WaterGroundwater

Total PCBs 0000064 ugl NRWQC Human Health for Consumption of

Organism Only

Lead 81 ugl NRWQC Criterion Continuous Concentration mgkg = milligrams per kilogram NRWQC = National Recommended Water Quality Criteria 2006 ppm = parts per million ugl micrograms per liter TSCA = Toxic Substances Control Act

AR103674

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Table 23 Estimated Extent of Site Contamination for Sauer Dump Site

Region of Contamination Area

(square feet) Depth1) (feet)

Volume (cubic yards)

Soils

Parcel 464 and 503 10810 8 3200

Parcel 295 1010 8 300

Parcel 137 7480 4 1110

Northern Portion of Parcel 425 34220 8 10140

Southern Portion of Parcel 425 15540 35 2010

Parcel 5742) 0 0 0

Total 69060 - 16760

Sediments

Total 52240 4 7740 (1) Depths based on available subsurface soil analytical data and depth to groundwater The depth in the wetland areas was assumed to

be 4 ft (2) No soil data was available for Parcel 574 Only contaminated sediments were detected on this parcel As a result all excavation

volumes related to this parcel are included in the sediment area and volume numbers only

US EPA Region 3 Sauer Dump Site EECA Sheet 1 of 1 HydroGeoLogic Inc April 2009

AR103675

This page intentionally left blank

AR103676

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

30 IDENTIFICATION AND SCREENING OF TECHNOLOGY TYPES AND PROCESS OPTIONS

General Response Actions (GRAs) and specific technology types and Technology Process Options (TPOs) within each GRA type are defined in this section The phrase ldquotechnology process optionsrdquo refers to specific processes within each of the general technology types For example TPOs within the ldquotreatmentrdquo GRA include chemical oxidation and soil washing GRAs are introduced in Section 31 In Section 32 potential remedial technologies are identified within each of the General Response Actions The identified TPOs are first pre-screened based on technical feasibility for the Site In Section 33 TPOs retained from the initial pre-screening are screened for effectiveness implementability and cost The TPOs that remain after the latter screening are summarized in Section 34 These remaining TPOs will be used in assembling removal alternatives for the Site

31 GENERAL RESPONSE ACTIONS (GRAS)

GRAs are medium-specific generic types of remedial actions that can alone or in combination achieve the RAOs established for the Site GRAs proposed for the Site include the following

No Action - No action GRA implies that the Site is left in its present condition This response action provides a background against which all other remedies can be compared A no action alternative is required for consideration by the NCP

Institutional Controls - Institutional controls (ICs) can reduce human health risks from Site contaminants by restricting land use or activities at the Site ICs will not reduce ecological risks ICs contribute to the effectiveness of remedial systems through preventing activities or land uses which may interfere with the systemrsquos operation

Containment - Containment refers to physical processes that would restrict contaminant mobility without changing their concentration or toxicity Containment protects human health and minimizes ecological risk by controlling the routes of exposure

Treatment - Treatment may include any physical chemical or biological processes that would lower human health or ecological risk from the contaminants by their destruction or conversion into less hazardous forms

Removal - Removal includes physically removing contaminated soils as an initial step for treatment andor disposal

Disposal - Disposal involves methods to discard the treatment by-product or removed soils off-site in accordance with all applicable regulations

Applicable technologies associated with each of the above GRAs are discussed below

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32 IDENTIFICATION AND SCREENING OF POTENTIALLY APPLICABLE TECHNOLOGIES

A range of technology types and process options was identified and pre-screened according to their overall applicability to the primary contaminants and conditions present at the Site For each GRA one or more technology types and associated TPOs were identified The initial screening results are summarized in Tables 31 and 32 Some of the sources consulted during the identification of technologies include reference documents published by EPA feasibility studies for similar sites standard engineering texts and professional experience

33 EVALUATION OF POTENTIAL REMEDIAL TECHNOLOGIES

In this subsection each of the technologies retained in Tables 31 and 32 is described and evaluated in greater detail based on its effectiveness implementability and cost Based on this evaluation the technology is either retained for further evaluation or eliminated Each of the three criteria is briefly defined below

Effectiveness ndash The ability of a technology to meet the removal objectives for protection of human health and the environment

Implementability ndash Technical and administrative feasibility of implementing the technology TPOs that are not technically feasible at the Site were eliminated during the pre-screening step in Section 32 During this evaluation the remaining TPOs are compared based on such considerations as the availability of treatment storage and disposal services and the necessary equipment and skilled workers to implement the technology

Cost ndash A relative estimate of the cost of implementing the technology This is based on engineering judgment and available reference sources Cost are given as very low low moderate or high relative to other process options

331 No Action

Description ndash The no-action option consists of leaving the Site as it is without any removal activities Effectiveness ndash This response does not meet the removal objectives and would not be protective of human health or the environment Implementability ndash No actions are required to implement this option Cost ndash No costs are associated with this option Recommendation ndash The No Action option was retained to provide a baseline for the comparison of other removal alternatives

US EPA Region 3 Sauer Dump Site EECA 3-2 HydroGeoLogic Inc April 2009

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332 Institutional Controls

ICs do not reduce contaminant toxicity mobility or mass They do reduce or eliminate the potential for human exposure and can help protect existing and future remedial measures Because the PRGs are based on non-residential Site use all remedial alternatives must include ICs to prevent future development of the Site for residential purposes The proposed ICs include deed noticesrestrictions public informationawareness programs security fencing and monitoring of Site conditions

3321 Deed NoticesRestrictions

Description ndash Deed noticesrestrictions may be used to provide potential future purchasers of affected properties with notice of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site to define acceptable land use to prevent specific activities and to require specific engineering controls in order to eliminate or minimize human exposure to Site-related contaminants Deed noticesrestrictions may also be used to protect the integrity of removal systems Effectiveness ndash Deed noticesrestrictions defining acceptable land uses(s) and placing limits on excavation or intrusive activities would be effective in minimizing human exposure to the contaminants in soils and sediments at the Site Additional restrictions could be enacted to protect existing and future remedial systems Deed noticesrestrictions would not reduce potential environmental risks nor would they decrease contaminant toxicity mobility or volume This option would be more effective in combination with other removal options Implementability ndash Deed noticesrestrictions could be easily implemented at the Site Legal involvement would be needed for preparation of the deed noticesrestrictions It would also be necessary to obtain agreement from the owners of the affected properties to allow deed noticesrestrictions to be filed with the Recorder of Deeds for Baltimore County or other office where land ownership and transfer records are maintained Cost ndash Costs associated with implementing deed noticesrestrictions would be very low Recommendation ndash This option was retained for use in conjunction with other removal measures

3322 Access Agreements

Description ndash Access agreements are used to ensure continued Site access for monitoring Site conditions and operating or maintaining removal systems Because of the need to implement ICs to maintain non-residential land use continued access for Site monitoring will be required Depending on the removal alternative selected for implementation additional access may be required for system operation and maintenance

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Effectiveness ndash Access agreements for monitoring and maintenance activities would not reduce the toxicity mobility or volume of the contaminants at the Site but they are necessary for successful implementation of other removal options at the Site Implementability ndash Access agreements can be easily implemented at the Site Cost ndash The cost of securing access agreements for the Site would be very low Recommendation - Access agreements were retained for further consideration in combination with other removal options

3323 Monitoring of Site Conditions

Description ndash Monitoring includes Site inspection and collection of environmental samples Because Alternatives 2 and 3 would include ICs to restrict land use to non-residential purposes Site inspections would be required to confirm IC implementation Depending on the removal alternative additional monitoring such as sample collection may be required to assess remedial system performance Effectiveness ndash While monitoring activities would not reduce the risks associated with the contaminants or the toxicity mobility or volume of the contaminants at the Site these activities are necessary for successful implementation of other removal options and for demonstrating attainment of removal objectives Monitoring would be more effective in combination with other removal options Implementability ndash Monitoring can be easily implemented Cost ndash The cost of monitoring Site conditions would be very low to low Recommendation ndash Monitoring of Site conditions was retained for further consideration in combination with other removal options

3324 Security Fencing

Description ndash The Site has a chain link security fence around the perimeter of the former operational area (Parcel 425) This option would involve either maintenance of the existing fence or construction of a new fence should implementation of the removal alternative require dismantling of the current fence or if additional areas need to be included within the fence Effectiveness ndash A security fence can be an effective means of decreasing the potential for human contact with the contamination on Parcel 425 The security fence would not effectively protect ecological receptors nor would the fence decrease contaminant mobility toxicity or volume

US EPA Region 3 Sauer Dump Site EECA 3-4 HydroGeoLogic Inc April 2009

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Implementability ndash Maintenance of the current fence or replacement of the fence following removal action implementation would be easy to implement Cost ndash The cost of security fencing at the Site would be very low to low Recommendation - Security fencing was retained for further consideration in combination with other removal options

3325 Public Awareness and Information Programs

Description ndash Public meetings would be held to inform the public of risks associated with the Site contamination Fact sheets would be used to disseminate information about the Site In addition warning signs would be used to warn potential trespassers of Site dangers Effectiveness ndash The public meetings and fact sheets may be an effective method for decreasing the potential for local residents to contact the contaminated soils or sediments but would not be effective for potential receptors that do not live near the Site The warning signs would be an effective means of decreasing the potential for humans to contact the contaminated soils and sediments on Parcel 425 These measures would not reduce environmental risks or the toxicity mobility or volume of the Site contaminants Implementability ndash Public awareness levels are fairly high in the area Presentation of Site updates via additional public meetings and fact sheets would be easily implemented Additional signage for the Site could be easily obtained and installed Cost ndash The cost of public awareness and information programs would be very low Recommendation - Public awareness and information programs were retained for further consideration in combination with other removal options

333 Containment

Containment involves installation of physical barriers to prevent further migration of contaminants in the soils and sediments and to eliminate the routes of exposure to humans and ecological receptors Only surface horizontal barriers (covers) were retained by the initial screening in Section 32 Surface caps were not retained for sediments because the capping process would destroy the wetlands necessitating construction of replacement wetlands as a mitigation measure The covers retained by the initial screening are described below

3331 Multi-Layer Cover

Description ndash A multi-layer surface cover such as a RCRA Subtitle C cap is appropriate for hazardous waste applications This type of cap generally includes an upper vegetative (topsoil) layer a drainage layer a synthetic membrane and a low permeability barrier layer placed over a foundation layer of sand or native soils The barrier layer can be constructed with low-

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permeability soil (clay) andor geosynthetic clay liners RCRA Subtitle C caps are typically six foot or more in thickness (Air Force Center for Environmental Excellence 1999) Effectiveness ndash A multi-layer surface cover could achieve the removal objectives by limiting contact of human and ecological receptors with contaminated soils and by preventing contaminant migration through leaching and erosion Because a bottom liner would not be placed beneath the contaminated soils this approach would not prevent tidal influences from raising groundwater into the contaminated subsurface soils The extent to which this process would result in contaminant leaching to groundwater would depend on the contamination depth relative to the potential range of groundwater elevations If the sediments were excavated dewatered and placed beneath the cover this technology could provide an effective means of eliminating the direct contact risks and migration potential associated with the sediment contaminants To ensure continued protection of human health and the environment the cover would require long-term maintenance Because the Site is adjacent to tidally-influenced surface water the cover would be subjected to storm events and flooding which could increase the maintenance requirements and the potential for the cover to be breached or damaged If the cover were breached at some point it would be relatively difficult to reseal From a regulatory perspective a RCRA Subtitle C cap exceeds the requirements of 40 CFR sect 76161 for capping of bulk PCB remediation wastes Implementability ndash A multi-layer surface cover could be implemented with readily available technology and materials This technology is harder to implement than other covers such as asphalt or concrete Maintenance of a multilayer cap would include erosion repair vegetation trimming or removal and possibly animal controlremoval Cost ndash Moderate unit costs of between $500000 and $650000 per acre are typical for multi-layer cover construction Removal of Site debris and consolidation of the contaminated sediments and off-site (non-Parcel 425) soils beneath the cover would increase construction costs Recommendation - This approach was not retained for further analysis because while it would be effective and implementable it exceeds the regulatory requirements for capping of bulk PCB remediation wastes on sites that are being remediated in accordance with 40 CFR sect 76161 and is more expensive than a TSCA cap that would meet the requirements of these regulations

3332 TSCA Compacted Soil Cover

Description ndash A single layer compacted soil cover with a minimum thickness of ten inches The soil must meet minimum specifications outlined in 40 CFR sect 76161(a)(7)

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Effectiveness ndash A compacted soil cover could achieve the removal objectives by limiting contact of human and ecological receptors with contaminated soils and by preventing contaminant migration through leaching and erosion As with the multi-layer cover a compacted soil cover would not prevent tidally-influenced groundwater from rising into the contaminated soil zone and would require long-term maintenance Because of the presence of burrowing animals and the proximity to residences it would be beneficial to include a burrowing barrier to the cap to limit breaching of the cover by animals or children Implementability ndash A compacted soil cover could be implemented with readily available technology and materials Maintenance of the cap would include erosion repair vegetation trimming or removal and possibly animal controlremoval Cost ndash Low to Moderate unit costs of between $150000 and $250000 per acre are typical for compacted soil cover construction Removal of Site debris and consolidation of the contaminated sediments and off-site (non-Parcel 425) soils beneath the cover would increase construction costs Recommendation - This approach was retained for further analysis

3333 Asphalt or Concrete Cover

Description ndash Asphalt and concrete covers consist of an asphalt or concrete layer over the contaminated soils These covers are designed to minimize contact with soils and to limit infiltration of stormwater and surface erosion According to TSCA regulations an asphalt or concrete cover must have a minimum thickness of six inches Effectiveness ndash Concrete and asphalt covers can effectively control erosion reduce soil exposure and minimize precipitation infiltration As with the multi-layer cover a concrete or asphalt cover would not prevent tidally-influenced groundwater from rising into the contaminated soil zone Asphalt and concrete covers are more resistant to erosion and require less maintenance than multi-layer covers (Air Force Center for Environmental Excellence 1999) It would be relatively simple to reseal a concrete or asphalt cap if it were to be breached However the covers would still have the potential for damage due to storm events and flooding Implementability ndash Concrete or asphalt caps could be easily implemented for the on-site soil contamination Maintenance of these caps typically involves the periodic application of sealers and repair of cracks The appearance of these caps can be considered a draw-back and the impact to wildlife would be significant due to loss of habitat Cost ndash Low to Moderate unit costs of between $300000 and $550000 per acre are typical for asphalt or concrete cap construction Removal of Site debris and consolidation of

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contaminated sediments and off-site (Parcels adjacent to Parcel 425) soils beneath the cover would increase construction costs Recommendation ndash Due to the significant impact on wildlife this treatment option was not retained for further consideration

334 Soils and Sediments Treatment

Soil treatment methods can be subdivided into two general categories in situ and ex situ Ex situ methods involve excavation of the soils before treatment while in situ treatment is performed in place In situ and ex situ treatment methods can rely on chemical physical or biological processes as well as combinations of these All ex situ treatment considerations must take into account the costs for excavation and for some alternatives transportation of soils The treatment processes retained by the initial screening in Section 32 are evaluated below

3341 In Situ Soil Flushing

Description ndash Soil flushing involves flooding contaminated soils with water or a solution to mobilize contaminants The water or liquid solution is injected or infiltrated into the area of contamination The contaminants leach into the watersolution which is then recovered and treated before being re-injected or discharged Effectiveness ndash Even though some of the Site contaminants may be amenable to soil flushing it is unlikely that a single wash fluid would be able to remove all of these chemicals due to their differing physico-chemical characteristics as well as the type of soils (high amounts of fines) Thus application of multiple flush solutions would likely be required Without bench scale or pilot testing it is not known if this technique could achieve all the PRGs for soil contaminants To be effective it is necessary for the flush solution to be distributed throughout the entire treatment zone The potential for the injected fluid to short-circuit the contaminated soils particularly if it is necessary to inject multiple solutions decreases the effectiveness of this TPO Additionally soil flushing would mobilize many of the contaminants in question allowing those contaminants that are not recovered to further impact the groundwater Implementability ndash In situ flushing is well-suited for treatment of contaminants in sandy soils but not for soils with a high amount of fines (ie silts and clays) The surface soils (based on the 2002 geotechnical testing summarized in the August 2005 RI by ENSAT) would be amenable to the flushing as they are 50 to 70 percent sand The subsurface soils however are mainly clays and silts and would require greater volumes of liquid injection In addition the depth to groundwater at the Site is shallow (less than 10 feet below ground surface) and discharges directly to the Back River With the large area requiring treatment it would be difficult to install a fluid injectioncapture system that would allow treatment of the entire soil volume while ensuring that the wash solution and mobilized contaminants are captured before

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they reach the groundwater and the Back River The greater liquid injection volume would have the effect of increasing the groundwater elevation and thereby increasing the hydraulic gradient between the groundwater and the surface water in the Back River promoting groundwater flux to the Back River Cost ndash High Published costs for large scale projects using soil flushing range from $65 to $200 per cubic yard of treated soil (Interstate Technology and Regulatory Council (ITRC) 2003) Recommendation - In situ soil flushing was not retained for further consideration because of the subsurface soil composition the commingled contamination and the potential to discharge contamination into the Back River

3342 Ex Situ Soil Washing

Description ndash Ex situ soil washing applies the soil flushing concept to excavated soils The technique could also be applied to excavated sediments Effectiveness ndash Ex situ soil washing would eliminate the concerns over the potential for increased contamination of the groundwater and subsequently the Back River associated with the in situ flushing technique Multiple wash fluids however would be required because of the commingled contamination Without bench scalepilot testing it is not known if the PRGs for all soil and sediment contaminants could be achieved Implementability ndash This treatment process would require a large area for implementation The commingled contamination at the Site would require sequential washing steps using different wash formulations andor different soil-to-wash-fluid ratios Treatability studies would be required to determine what combination of washing steps and solutions would be needed to treat the Site soils to the PRGs Additionally because this technology only separates the contamination from the soils a treatment system would need to be constructed for the wash water or the wash water would have to be containerized and transported to an off-site disposal facility Cost ndash Moderate to High Costs for this technology have been reported to range between $50 and $200 per cubic yard (Federal Remediation Technologies Roundtable (FRTR) 2002 ITRC 1997) but the nature of the wastes at the Site could push the costs of implementation to (or possibly above) the high end of this range Recommendation - Because of the complexity of the technology and space requirements ex situ soil washing was not retained

3343 Ex Situ Thermal Desorption

Description ndash Ex Situ Thermal Desorption (ESTD) can be used to remove organic compounds including PCBs from soils and sediments Soilssediments are heated to volatilize organic

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contaminants and a carrier gas or vacuum system transports volatilized water and organics to the gas treatment system Effectiveness ndash Thermal desorbers with temperatures in the range of 200oF to 600oF are able to achieve 95 percent contaminant destruction efficiency for treating VOCs and SVOCs while the decontaminated soils retain their physical properties Thermal desorbers with temperatures in the thermal range 600oF to 1000oF can produce final contaminant concentrations below 5 mgkg and are effective for treating PAHs PCBs pesticides SVOCs and VOCs ESTD would not address the metals contamination Implementability ndash This option can be implemented with specialized but commercially available equipment However there may be public opposition to the process because of the associated air emissions noise and the proximity to residential areas Implementation would require an open area to place the system and stage the treated and untreated soilssediments space for sediments dewatering and a significant supply of energy Cost ndash Moderate to High Literature sources list approximate costs for treating Site soils using ESTD in the range of $40 to $232 per cubic yard of soil (httpwwwfrtrgovmatrix2section44-26html 2008) In addition the costs associated with the remediation of the sediments would be higher due to dewatering of the sediments prior to ESTD Recommendation ndash ESTD was not retained as a possible pre-treatment option for excavated sediments and soils slated for off-site disposal due to the associated air emissions noise and the proximity to residential areas

3344 Ex Situ Thermal Destruction (Incineration)

Description ndash During the incineration process the soils are heated above the combustion temperature of most organic contaminants (1600oF to 2200oF) in the presence of oxygen Available incineration processes include rotary kiln fluidized-bed and infrared options Effectiveness ndash High temperatures employed during the incineration process result in the destruction of most organic compounds with treatment efficiencies commonly exceeding 9999 percent Generated off gases and combustion residuals generally require treatment Implementability ndash Mobile incinerator units are commercially available but there may be public opposition to the on-site use of an incinerator Off-site incineration is possible but transportation of the quantities of soils and sediments requiring remediation over the distances to the closest acceptable incinerator would increase the potential to spread Site contamination and would substantially increase cost Only three incinerators in the country can accept the Sitersquos heavily contaminated PCB soils because of the elevated metals concentrations These incinerators are 1) the Veolia facility in Port Arthur Texas 2) the Clean Harbor facility in Deer Park Texas and 3) the Clean Harbor facility in Aragonite Utah Other regulatory concerns associated with incineration include generation of toxic air pollutants and disposal of

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ash residue An incineration facility must submit to a full-scale evaluation including a trial burn monitored by regulatory agencies to demonstrate its ability to meet performance criteria for various materials Cost ndash High Incineration is a very expensive process with costs ranging from approximately $585 to $1171 per cubic yard of soils (FRTR 2002) Recommendation ndash Because of this technologyrsquos ability to destroy the PCBs incineration was retained for further analysis

335 Groundwater CollectionTreatment

Groundwater collection and treatment methods can be used to control off-site migration of groundwater contaminants or to capture and treat groundwater containing residual contaminants from the capped or remediated areas The collectiontreatment methods retained by the initial screening are described below

3351 Interceptor Trench

Description ndash Interceptor trenches collect and allow extraction of groundwater before it migrates off-site The trench would consist of groundwater extraction sumps with submersible groundwater extraction pumps and piping to transfer extracted groundwater to an on-site treatment facility Effectiveness ndash To be effective the interceptor trench must be combined with a treatment andor disposal option Implementability ndash Installation and construction of the trench could be readily implemented with standard construction equipment and engineering controls A power supply would be required to operate the extraction system Long-term OampM would be required Cost ndash Moderate to High Costs can range from approximately $200 to $300 per linear foot of trench depending on Site conditions These costs include sumps and pumps Long-term OampM costs would also have to be included Recommendation ndash Groundwater collection through an interceptor trench was retained for further consideration

3352 Extraction Wells

Description ndash Collection of groundwater would be accomplished through one or more point extraction wells that would be used to induce a cone (or cones) of depression to capture contaminated water from the Site before it discharges into the river

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HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Effectiveness ndash To be effective the extraction well(s) must be combined with a treatment andor disposal option Because each well would generate a cone of depression it is likely that a substantial volume of river water would also be extracted for treatment The relatively low permeability soils of the Site would limit the effective radius of influence (ROI) of each well Implementability ndash Installation and construction of the well(s) could be readily implemented with standard construction equipment and engineering controls A power supply would be required to operate the extraction system Long-term OampM would be required Cost ndash Low to Moderate depending on geology well depth and required well casing material Long-term OampM costs would also have to be included Recommendation ndash Because of the limited ROI for each well and the high potential to extract river water in addition to contaminated groundwater collection of groundwater using extraction wells was not retained for further consideration

3353 Granular Activated Carbon Adsorption

Description ndash Granular Activated Carbon (GAC) is a highly porous and adsorbent material which is able to remove organic contaminants from water Collected groundwater would be filtered through the GAC to attain the PRGs before discharge of the treated groundwater Effectiveness ndash To be effective the treatment must be combined with a collection and discharge system PCBs can be removed through activated carbon adsorption Pre-filtration prior to activated carbon treatment can remove suspended particulates and multi-stage carbon adsorption can effectively remove heavy metals such as lead Implementability ndash Installation and construction of the GAC system could be readily implemented with standard construction equipment and engineering controls The activated carbon must be replaced periodically A power supply would likely be required to operate the treatment system and long-term OampM would be required Cost ndash Moderate to High PCB contamination limits treatment options Average cost for a GAC system of the size needed to achieve the PRGs required for this Site would be approximately $100000 Long-term OampM costs would also have to be included Recommendation ndash Groundwater treatment using GAC was retained for further consideration

3354 Monitored Natural Attenuation

Description ndash Natural attenuation are processes that may render the contaminants less toxic reduce concentrations reduce mobility andor alter bio-availability so that potential risks are reduced

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Effectiveness ndash Contaminant concentrations in Site groundwater are expected to be reduced through natural physical chemical and biological processes Until complete degradation is complete exposure risks from contaminated groundwater could exist Implementability ndash This process option could be readily implemented with standard construction equipment and engineering controls Long-term monitoring would be required Cost ndash Low The primary cost for this process option includes labor and equipment costs for installation of the monitoring wells if necessary and long-term sampling and analytical testing These costs are expected to be significantly lower than most other process option OampM costs Recommendation ndash Based on its low cost and eventual effectiveness this process option was retained for possible incorporation into the removal action alternatives

336 Removal and Disposal TPOs

Excavated soils and sediments can be disposed in an on-site or off-site landfill either directly or after they have undergone ex situ treatment Some of the excavated material would likely be classified as hazardous waste under RCRA This waste classification could result in additional disposal restrictions The presence of PCBs at concentrations greater than LDR limits would require that the soils be treated prior to disposal

3361 Excavation

Description ndash Soils and sediments characterized by contaminant concentrations greater than PRGs would be excavated Effectiveness ndash To be effective excavation must be combined with a treatment andor disposal option Implementability ndash Excavation could be readily implemented with standard construction equipment and engineering controls The excavated sediments would require decanting and possibly dewatering prior to treatment andor disposal The water removed from the sediments would require treatment prior to discharge or would require off-site disposal Cost ndash Low to High Excavation costs must be considered as a part of any alternative involving soilssediments removal Recommendation ndash Excavation was retained for further consideration

3362 Off-Site Landfill

Description ndash Excavated soils and sediments would be disposed in an off-site landfill with or without treatment Surface debris would be disposed off-site Some of the Site soilssediments

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US EPA Region 3 Sauer Dump Site EECA 3-14 HydroGeoLogic Inc April 2009

may be characterized as hazardous wastes and would require disposal at a properly permitted hazardous waste facility Soils sediments and debris characterized as non-hazardous would be transported to a properly permitted non-hazardous waste landfill Effectiveness ndash Disposal of debris soils and sediments in an off-site landfill would effectively achieve the removal objectives Placement of the contaminated material in a properly engineered constructed and operated landfill would eliminate risks to human health and the environment and would prevent contaminant migration Implementability ndash A detailed waste characterization analysis would be required before an off-site treatmentdisposal facility would accept materials The data indicate that a substantial portion of the soils and sediments would be classified as hazardous waste Because of the comingled PCB and metals waste it might be difficult to identify a facility with the ability to accept the waste The Waste Management facility in Emelle Alabama was the closest identified facility that has the ability to accept hazardous (metals) waste provided that the PCB concentration is less than 500 mgkg Hazardous soils and sediments with a PCB concentration greater than 500 mgkg must be treated to remove the PCBs prior to acceptance by a hazardous waste landfill facility Based on the available data it is estimated that approximately 7540 cubic yards of soil would require treatment prior to off-site disposal The PCB concentrations of the contaminated sediments do not appear to meet this threshold value for treatment Transportation to an off-site disposal facility would require truck shipments Depending on the volume of soilssediments to be disposed off-site there could be substantial short-term impacts to the local traffic patterns In addition to creating inconvenience for local residents multiple truck shipments would increase the potential to spread contamination through off-site spills or accidents Cost ndash High Cost estimates for excavation and disposal of contaminated soils and sediments range from $210 - $350 per cubic yard (FRTR 2002) The costs for the Site are expected to be toward the high end of these estimates because of the highly contaminated nature of the waste and the distance to an appropriate landfill The cited costs do not include the pre-treatment required for soils with PCB concentrations greater than 500 mgkg Disposal of non-hazardous demolition debris and certain soils (those that pass the toxicity characteristic leaching procedure and have less than 50 mgkg of PCBs) would incur lower costs because these materials could be disposed of in municipal or industrial landfills located closer to the Site Recommendation - Because of the ability of this TPO to achieve the removal objectives it was retained for further evaluation

34 SUMMARY OF TREATMENT TECHNOLOGIES AND SELECTION OF REPRESENTATIVE PROCESS OPTIONS

The process options that were retained for further consideration will be used as components of the potential removal alternatives developed and evaluated in Section 4 Results of the TPO evaluation are summarized in Tables 33 and 34

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TABLES

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Table 31 Sauer Dum

p Site EE

CA

Sheet 1 of 3

H

ydroGeoL

ogic Inc April 2009

Identification and Preliminary Screening of Soil and Sediment Technologies for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

No Action None None Take no remedial action Contaminated soils and sediments would be subject to natural conditions and processes

Required for consideration by NCP Retained

Zoning Ordinances Restrict uses of the property andor limit Site access to minimize exposure and protect Site features

Zoning ordinances can be changed Not retained because does not provide a permanent means of land use control

Deed NoticesRestrictions

Restrict future use of Parcel 425 to non-residential purposes PRGs are based on non-residential use

Retained

Access Agreements Provide agreements to ensure access for monitoring of Site use inspection and operation and maintenance of removal system(s)

Retained

Public Awareness and Information Programs

Public meetings held to inform public of risks associated with the Site Installationmaintenance of warning signs

Retained

Monitoring of Site Conditions

Inspect Site to ensure non-residential land use Collect environmental samples

Retained

Institutional Controls

Institutional Actions

Security Fencing

Maintenance of existing perimeter fence Installation of a new security fence should implementation of the removal alternative require dismantling of the current fence or if additional areas need to be included within the fence

Retained

TSCA Compacted Soil Cover

Construct compacted clay cover over contaminated soils and sediments

Retained

Surface Cover - Multilayer

Install impermeable multilayered surface cover (such as RCRA Subtitle C cover)

Not Retained Containment Surface Cover

Surface Cover ndash Asphalt or Concrete

Install low permeability asphalt or concrete cover Not Retained

US E

PA

Region 3

AR103692

Table 31 (continued) Identification and Preliminary Screening of Soil and Sediment Technologies for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 2 of 2

HydroG

eoLogic Inc A

pril 2009

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

In Situ Soil Flushing

Contaminants are extracted from the soils with an aqueous medium the injected fluid is recovered for treatment and discharge

Not retained because of the subsurface soil composition the commingled contamination and the potential to discharge contamination into the Back River

Chemical Physical Treatment

Ex Situ Soil Washing Excavated soils are suspended in washing solution to concentrate and extract contaminants

Not retained because of the complexity of the technology and space requirements

Ex Situ Thermal Desorption

Excavated soils or sediments (after dewatering) are run through a thermal desorber for removaldestruction of organic compounds

Not retained due to associated air emissions noise and the proximity to residential areas

Treatment

Thermal Treatment Ex Situ Thermal

Destruction (Incineration)

Excavated soils or sediments (after dewatering) are combusted at high temperatures in the presence of oxygen to thermally destroy organic contaminants

Retained due the technologyrsquos ability to destroy PCBs

Removal Excavation Excavation Soils andor sediments are excavated for further treatment or disposal

Retained

Disposal Landfill Off-Site Landfill Excavated soils and sediments are transported to an off-site landfill for proper disposal

Retained

AR103693

Table 32 Sauer Dum

p Site EE

CA

Sheet 1 of 2

H

ydroGeoL

ogic Inc April 2009

Identification and Preliminary Screening of Groundwater Technologies for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

No Action None None Take no remedial action Contaminated groundwater would be subject to natural conditions and processes

Required for consideration by NCP Retained

Zoning Ordinances Restrict uses of the property andor limit Site access to minimize exposure and protect Site features

Zoning ordinances can be changed Not retained because does not provide a permanent means groundwater control

Deed NoticesRestrictions

Restrict future groundwater use

Retained

Access Agreements Provide agreements to ensure access for monitoring of Site use inspection and operation and maintenance of removal system(s)

Retained

Public Awareness and Information Programs

Public meetings held to inform public of risks associated with the Site Installationmaintenance of warning signs

Retained

Monitoring of Site Conditions

Inspect Site to ensure non-residential land use Collect environmental samples

Retained

Institutional Controls

Institutional Actions

Security Fencing

Maintenance of existing perimeter fence Installation of a new security fence should implementation of the removal alternative require dismantling of the current fence or if additional areas need to be included within the fence

Retained

Hydraulic Control

Extraction Hydraulic gradient is controlled by pumping groundwater from a strategically placed well network

Not effective because of low permeability soils and potential to extract large volumes of river water Not retained

Containment

Capping Surface Cap

Install a horizontal barrier to prevent infiltration of precipitation and subsequent mobilization of contaminants to groundwater

Retained

Collection Treatment

Extraction Interceptor Trench Construction of a trench to collect groundwater before it enters the wetlands

Retained

US E

PA

Region 3

AR103694

Table 32 (continued) Identification and Preliminary Screening of Groundwater Technologies for Sauer Dump Site

HG

LmdashE

EC

A Form

er Sauer Dum

p and Salvage YardmdashD

undalk Baltim

ore County M

D

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 2 of 2

H

ydroGeoL

ogic Inc April 2009

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

Chemical Physical Treatment

Granulated Activated Carbon

Collected groundwater would be filtered through granular activated carbon before discharge to remove organic contaminants

Retained

Monitored Natural Attenuation

Natural Attenuation Natural attenuation of organic contaminants is achieved via native subsurface microorganisms and naturally occurring physical processes in the subsurface

Retained

AR103695

Table 33 Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 1 of 6

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

No Action None

Take no remedial action Contaminated soils and sediments will be subject to natural conditions and processes

Rank = 5 Does not address risks from Site soils or sediments

Rank = 1 No cost No OampM

Retained as baseline comparison

Deed Notices Restrictions

Restrict use of Parcel 425 to non-residential purposes

Rank = 4 Reduces but does not eliminate human health risks from the Site Does not address ecological risks Does not prevent further contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Required for all alternatives because PRGs based on non-residential use

Access Agreements

Provide agreements to ensure access for monitoring of Site conditions and operationmaintenance of removal system(s)

Rank = 4 Does not address human health or ecological risks Does not affect contaminant migration Allows for effective implementation of other technologies

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

Monitoring of Site Conditions

Monitor Site to confirm implementation of land use controls Monitor operation of any removal system(s)

Rank = 4 Provides information of the implementationoperation of the removal alternative

Rank = 1 Can be easily implemented

Very Low to Low Cost

Retained for development of alternatives

Institutional Controls

Security Fencing

Maintain existing Site fence Re-install Site fence if current one torn down during removal action implementation or if additional areas need to be included within the fence

Rank = 4 Decreases exposure potential for humans Does not address ecological risks or contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Minimal OampM required

Retained for development of alternatives

US E

PA

Region 3

AR103696

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 2 of 6

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Public Awareness Programs

Conduct Public Meeting and issue fact sheets to educate citizens about risks of Site contamination Post warning signs at Site to alert people of associated risks

Rank = 4 Decreases exposure potential for humans Does not address ecological risks or contaminant migration

Rank = 1 Can be easily implemented

Very Low cost

Retained for development of alternatives

Surface Cover ndash Multilayer (RCRA Subtitle C cap)

Install impermeable multi-layered surface cover over contaminated areas on Site

Rank = 2 Limits exposure and transport of contaminants Does not treat or remove contamination Limits allowable future uses of the Site Resealing of cap difficult if breached Exceeds requirements of 40 CFR sect 76161

Rank = 2 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Not retained due to more difficult implementability and higher cost than TSCA cap

Containment

Compacted Soil Cover (TSCA cap)

Install impermeable compacted soil cover over contaminated areas on Site

Rank = 2 Limits exposure and transport of contaminants Does not treat or remove contamination Limits allowable future uses of the Site Resealing of cap relatively simple if cap is breached Meets requirements of 40 CFR sect 76161

Rank = 1 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Retained for development of alternatives

US E

PA

Region 3

AR103697

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 3 of 6

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Containment Surface Cover ndash Asphalt or Concrete

Install asphalt or concrete cap over contaminated areas on-site

Rank = 2 As effective as multilayered cap in controlling exposure and spread of contamination Decreased OampM requirements as compared to multi-layer cap Does not allow for Site re-vegetation Visually unappealing Resealing of cap relatively simple if cap is breached Meets the requirements of 40 CFR sect 76161

Rank = 2 Equipmentskilled workers would be readily available Asphaltconcrete cover would reduce available habitat Maintenance in perpetuity

Low to moderate cost with lower OampM than multi-layer cap

Not retained due to significant impacts to wildlife

Treatment In Situ Soil Flushing

Contaminants are extracted from the soils with an aqueous medium the injected fluid is recovered for treatment and discharge

Rank = 4 Could increase groundwater contaminant levels and the discharge of groundwater contaminants to the adjacent surface water Limited effectiveness in fine-textured soils Not known if technology can attain the PRGs for all of the soil contaminants

Rank = 4 Complicated washing solution regimen needed to treat all contaminants Requires bench-scale and pilot-scale testing to identify optimum wash solutions and injectioncapture systems Requires treatment and disposaldischarge of wash fluid

High cost

Not retained because of soil composition commingled contamination and contaminant migration potential

US E

PA

Region 3

AR103698

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 4 of 6

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Ex Situ Soil Washing

Excavated soils are suspended in washing solution to concentrate and extract contaminants Could be applied to excavated sediments

Rank = 3 Eliminates contaminant migration concerns associated with in-situ soil flushing Not known if technology can attain the PRGs for all of the soilsediment contaminants

Rank = 4 Would require bench-scale and pilot-scale testing Wash solution would require treatment and disposal or discharge May not be enough room on- site to hold required system infrastructure and allow for excavation

High cost Not retained due to uncertainty over effectiveness and the difficulty of implementation

Treatment

Ex Situ Thermal Desorption

Excavated soils and sediments (after dewatering) are run through a thermal desorber for removaldestruction of organic compounds

Rank = 3 Excellent organic contaminant removal No inorganic treatment Higher temperatures are required to desorb PCBs

Rank = 4 Specialized equipment Potential for public opposition to air emissions Extensive space requirements for the sediment dewatering staging of untreated and treated soilssediments and desorption unit Requires a significant energy source

Moderate to high cost Pilot study required

Not retained due to associated air emissions noise and the proximity to residential areas

US E

PA

Region 3

AR103699

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 5 of 6

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Treatment Ex Situ Thermal Destruction (Incineration)

Excavated soils are combusted at high temperatures in the presence of oxygen to thermally destroy organic contaminants

Rank = 3 Effective for organic contaminants Not effective for metals

Rank = 5 Mobile units are available but could be subject to a high degree of public opposition Mobile unit would require extensive start-up testing (trial burns) to demonstrate compliance of off-gas treatment system with substantive requirements of air quality regulations Limited availability of off-site incinerators

Very high cost

Retained for use as pre-treatment method for off-site disposal due to technologyrsquos ability to destroy PCBs

Removal Disposal Excavation

Soils and sediments are excavated for further treatment or disposal

Rank = 1 Could achieve all removal objectives if contaminated soils and sediments are removed for treatment or proper off-site disposal

Rank = 2 Can be implemented with readily available construction techniques and equipment Would require space for staging of excavated material and sediments dewatering

Low to high cost No operation and maintenance

Retained for development of alternatives

US E

PA

Region 3

AR103700

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 6 of 6

H

ydroGeoL

ogic Inc April 2009

General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

Off-Site Landfill

Excavated soils and sediments are transported to an off-site landfill

Rank = 1 Would achieve all removal objectives

Rank = 4 Soilssediments characterized as hazardous waste would require truck transport to a hazardous waste facility The most contaminated soils would require pre-treatment prior to acceptance by a hazardous waste facility There may be public opposition to significant levels of off-site truck traffic

Moderate to high cost No operation and maintenance

Retained for development of removal alternatives

NOTES (1)TPOs are ranked qualitatively for effectiveness and implementability with 1 representing the most effectiveeasiest to implement and 5 representing the ineffectiveimpossible to implement

AR103701

Table 34 Evaluation and Screening of Groundwater Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 1 of 2

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

No Action None

Take no remedial action Contaminated groundwater will be subject to natural conditions and processes

Rank = 5 Does not address risks from Site soils or sediments

Rank = 1 No cost No OampM

Retained as baseline comparison

Deed Notices Restrictions

Restrict future groundwater use

Rank = 4 Reduces but does not eliminate human health or ecological risks Does not prevent further contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

Access Agreements

Provide agreements to ensure access for monitoring of Site conditions and operationmaintenance of removal system(s)

Rank = 4 Does not address human health or ecological risks Does not affect contaminant migration Allows for effective implementation of other technologies

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

Monitoring of Site Conditions

Monitor operation of any removal system(s)

Rank = 4 Provides information of the implementationoperation of the removal alternative

Rank = 1 Can be easily implemented

Very Low to Low Cost

Retained for development of alternatives

Institutional Controls

Public Awareness Programs

Conduct Public Meeting and issue fact sheets to educate citizens about risks of Site contamination Post warning signs at Site to alert people of associated risks

Rank = 4 Decreases exposure potential for humans Does not address ecological risks or contaminant migration

Rank = 1 Can be easily implemented

Very Low cost

Retained for development of alternatives

US E

PA

Region 3

AR103702

Table 34 (continued) Evaluation and Screening of Groundwater Technology Process Options (TPOs) for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 2 of 2

H

ydroGeoL

ogic IncApril 2009

General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

Containment Compacted Soil Cover

Install impermeable compacted soil cover over contaminated areas on site

Rank = 3 Limits exposure and transport of contaminants Does not treat or remove contamination Allows groundwater contact with residual contaminants

Rank = 1 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Retained for development of alternatives

Interceptor Trench

Groundwater is collected in an interceptor trench before it enters the wetland areas

Rank = 2 Limits transport of contaminants Does not treat or remove contamination Limits allowable future uses of the Site

Rank = 2 Can be readily implemented Maintenance in perpetuity

Moderate to High Cost Moderate OampM required

Retained for development of alternatives

Extraction Wells

Groundwater is extracted with individual extraction wells

Rank = 4 Site soil type would limit effective radii of influence of wells Wells would also draw in river water into treatment system

Rank = 2 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Not retained because of ROI issues and potential for river water withdrawal

GAC

Groundwater is treated with GAC

Rank = 4 Not known if technology can attain the PRGs for groundwater contaminants

Rank = 2 Would require an on-site treatment system

Moderate to High Cost Moderate OampM required

Retained for development of alternatives

Collection Treatment

Monitored Natural Attenuation

Natural Attenuation Rank = 4 Reduces but does not eliminate human health or ecological risks Does not prevent further contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

NOTES (1)TPOs are ranked qualitatively for effectiveness and implementability with 1 representing the most effectiveeasiest to implement and 5 representing the ineffectiveimpossible to implement

AR103703

This page intentionally left blank

AR103704

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

40 DEVELOPMENT AND DETAILED ANALYSIS OF REMOVAL ALTERNATIVES

The retained TPOs have been assembled into removal alternatives that could potentially meet the removal objectives for the Site In some cases several technologies were combined to provide an efficient and protective approach The removal alternatives include a ldquono actionrdquo alternative as well as combinations of the TPOs retained in Section 33 The proposed alternatives are defined in Section 41 and summarized in Table 41 Section 42 describes the evaluation criteria used to assess the different removal alternatives A detailed evaluation of each alternative is provided in Section 43 and a comparative analysis is provided in Section 44

41 DEVELOPMENT OF ALTERNATIVES

411 Alternative 1 No Action

The no action alternative serves as a basis against which the effectiveness of all the other proposed removal alternatives can be compared Under this alternative the Site would remain in its present condition and the soil and sediment contamination would be subject to natural processes only No monitoring would take place to keep track of any changes

412 Alternative 2 Surface Cap Excavation and Off-Site Disposal

Alternative 2 consists of the following components

bull Removal and off-site disposal of surface debris bull Clearing and grubbing of Parcel 425 and removal and disposal of materials bull Confirmation sampling would proceed concurrently with all excavation to ensure that

removal requirements are met bull Excavation of contaminated soils from Parcels 425 and 574 All contaminated soils

with PCBs greater than 100 ppm regardless of depth and lead greater than 1000 ppm in the upper 2 feet would be excavated for proper off-site disposal

bull Excavation of the contaminated sediments from the affected wetlands All sediments with PCBs greater than 1 part per million (ppm) and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 ppm below that depth would be excavated

bull Verification sampling of sediments along the Back River shoreline to determine the extent of sediments requiring excavation Based on the results sediments with PCBs greater than 1 ppm and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 ppm below that depth would be excavated

bull Excavation of all contaminated soils with PCBs greater than 1 ppm and lead greater than 400 ppm from the residential properties (Parcels 137 295 464 503 and portions of 574) adjacent to Parcel 425

bull Excavated soils and sediments would be temporarily stockpiled in a staging area established on Parcel 425 Confirmation sampling from the stockpile would be

US EPA Region 3 Sauer Dump Site EECA 4-1 HydroGeoLogic Inc April 2009

AR103705

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 4-2 HydroGeoLogic Inc April 2009

performed to verify that PCB concentrations are less than 100 ppm and lead concentrations are less than 1000 ppm Soils and sediments meeting these criteria would be placed across the upland portions of Parcel 425 Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull After completion of excavation and confirmation sampling all excavated areas with the exception of Parcel 425 would be restored by backfilling and re-vegetation

bull Parcel 425 would be re-graded and compacted after placement of the excavated soils and sediments and backfilled as required to maintain proper grade and drainage in preparation for construction of a TSCA soil cover

bull Construction of a TSCA compacted soil cover over the contaminated soils and sediments which exceed 1 ppm PCBs on Parcel 4253

bull Installation of replacement monitoring wells if necessary and a monitoring program to monitor the effectiveness of the remediation effort and groundwater quality Groundwater monitoring would be conducted on a semi-annual basis for a four-year period beginning after construction activities are complete Constituents to be monitored include lead and PCBs and

bull Implementation of ICs to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area of Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

Prior to the sediment and soil excavation any surface debris on Parcel 425 that could not be placed beneath the cap would be removed and disposed off-site The vegetation within the limits of disturbance for the excavation areas and cover foot print would be cleared grubbed and disposed off-site For costing purposes in the EECA it was assumed that a portion of the surface debris and grubbed material would be hazardous Any monitoring wells located inside the footprint of the cover would be abandoned The contaminated sediments in the affected wetlands would be excavated and placed in lined berms to allow the water to drain After the sediments are decanted they would be dewatered The water removed from the sediments through decanting and dewatering would be treated on-site prior to discharge to the Back River After completion of confirmation sampling and placement of the cover the wetland areas would be restored to their original grade and re-vegetated with native species Submerged sediment samples have been collected 14 times from within the Back River at locations adjacent to the Sauer Dump Site In only one instance (in 1999) were the PCB concentrations in one of these samples (21 ppm) greater than the PRG of 1 ppm Its location is shown on Figure 15 Given the time span since this sample was collected (over nine years)

3 For costing purposes the TSCA cap in Alternatives 2 and 3 was assumed to cover the entire extent of Parcel 425 This was done to account for the excavated soils and sediments (approximately 12600 cubic yards total) being brought back onto this parcel from the wetlands and other contaminate areas and to improve constructability of the cap by having a single continuous cap rather than multiple smaller caps

AR103706

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 4-3 HydroGeoLogic Inc April 2009

the mobile nature of river sediments (especially in a tidal location) and natural attenuation the area is currently assumed to meet the PRGs A total of 20 samples would be collected on a 10 foot grid to determine the extent if any of the area to be excavated Areas with PCBs andor lead concentrations exceeding the Site PRGs would be excavated and handled in the same manner as wetlands sediments Contaminated soils on Parcels 425 and 574 with PCB concentrations greater than 100 ppm and lead concentrations greater than 1000 mgkg would be excavated and properly disposed at an appropriately permitted landfill The lateral extent of the excavation was estimated from soil analytical data and is shown on Figure 41 Confirmation sampling would proceed concurrently with excavation to ensure that removal requirements are met Contaminated soils on the adjacent Parcels 503 464 295 137 and 574 would be excavated Confirmation sampling would proceed concurrently with excavation to ensure that removal requirements are met Prior to excavation access agreements would need to be obtained from the affected property owners The lateral extent of soil contamination in these areas was estimated from surface soil data and is shown on Figure 41 The actual area requiring excavation might be smaller or larger than shown After the completion of the excavation and confirmation sampling the excavated areas on Parcels 503 464 295 137 and 574 would be backfilled to the original grade with clean fill and re-vegetated Excavated soils and sediments with PCB concentrations greater than 100 ppm and less than 500 ppm would be properly disposed at an appropriately permitted RCRA or TSCA landfill The Waste Management facility in Emelle Alabama was the closest identified facility that has the ability to accept hazardous (metals) waste provided that the PCB concentrations in the waste are less than 500 mgkg Soils with PCB concentrations greater than 500 ppm would require incineration and disposal at one of the facilities mentioned in Section 3344 To ensure selection of the proper off-site disposal facility extensive waste characterization sampling would be required For costing purposes it was assumed that all soils and sediments classified as hazardous waste would be transported to the Waste Management facility in Emelle Alabama with the exception of approximately 7542 cubic feet of soilssediments which would require incineration Estimated volumes for Alternative 2 are contained in Appendix B-1 The excavated sediments and the soils that do not require off-site disposal would be placed across the upland portions of Parcel 425 In order to prevent direct contact protect from erosion and prevent migration of hazardous substances Site topography would be contoured and a TSCA compacted soil cover would be continuously installed over the area of Parcel 425 with concentrations of PCBs over 1 ppm4 A network of monitoring wells would be installed to assess the effectiveness of the removal action with respect to decreasing contaminant

4 For costing purposes the TSCA cap in Alternatives 2 and 3 was assumed to cover the entire extent of Parcel 425 This was done to account for the excavated soils and sediments (approximately 12600 cubic yards total) being brought back onto this parcel from the wetlands and other contaminate areas and to improve constructability of the cap by having a single continuous cap rather than multiple smaller caps

AR103707

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

migration via the soil-to-groundwater pathway For costing purposes it was assumed that the monitoring well network would consist of seven wells After installation of the cover deed noticesrestrictions would be applied to Parcel 425 to maintain the future land use as non-residential and to prevent activities which could damage the compacted soil cover A security fence would be installed around the cover and warning signs posted along the fence Access agreements would be obtained from the current property owners to allow for land use monitoring and cover maintenance This alternative requires long-term maintenance of the cover and monitoring of the Site conditions Cover maintenance includes periodic inspections and the repair of any damage to the cover Long-term monitoring would include land use monitoring groundwater monitoring and surface water monitoring The purpose of the groundwater and surface water monitoring would be to assess the effectiveness of the action with respect to contaminant migration

413 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment

This alternative includes the same elements as Alternative 2 with the following exceptions

bull All contaminated soils (regardless of depth) with PCBs greater than 10 ppm andor lead greater than 400 ppm from Parcels 425 and 574 would be excavated for proper off-site disposal

bull All of the contaminated sediments with PCBs greater than 1 ppm andor lead greater than 130 ppm from the affected wetlands and along the Back River shoreline would be excavated regardless of depth

bull Excavated soils and sediments with PCB concentrations less than 10 ppm and lead concentrations less than 400 ppm would be placed across the upland portions of Parcel 425 for capping Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull Installation of a groundwater collection system to control off-site migration of groundwater from the former dump area

bull Installation of a groundwater treatment system to remove lead and PCBs from the captured groundwater and discharge the water to the Back River

bull Implementation of long-term operation maintenance and monitoring for the groundwater collection and treatment system and

bull Implementation of Institutional Controls to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area of the Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

The lateral extent of the excavation required under this alternative was estimated from soil analytical data and is shown on Figure 43

US EPA Region 3 Sauer Dump Site EECA 4-4 HydroGeoLogic Inc April 2009

AR103708

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

The available data indicate that much of the soils to be excavated could meet the definition of a non-hazardous waste These soils could be disposed at a local non-hazardous waste landfill As in Alternative 2 soils with PCB concentrations greater than 500 ppm would require incineration and proper disposal at one of the three facilities mentioned in Section 3344 To ensure selection of the proper off-site disposal facility extensive waste characterization sampling would be required For costing purposes it was assumed that all soils and sediments classified as hazardous waste would be transported to the Waste Management facility in Emelle Alabama with the exception of approximately 7542 cubic feet of soilssediments which would require incineration Estimated volumes for Alternative 3 are contained in Appendix B-2 The groundwater collection and treatment system would consist of the following major components

bull Three (3) groundwater interceptor trench segments located along the south east and west portions of Parcel 425 (Figure 44) Each trench would contain groundwater extraction sumps with submersible groundwater extraction pumps and piping to transfer extracted groundwater to an on-site treatment facility Two groundwater extraction sumps and pumps would be sufficient to provide hydraulic control

bull A groundwater treatment building constructed on the southern portion of Parcel 425 The treatment building would house a groundwater treatment process consisting of temporary storage of extracted groundwater (surge tank) a pre-filtration system consisting of two basket strainers connected in series two granular activated carbon adsorbers connected in series and all associated process piping controls and transfer pumps

bull A treated groundwater discharge line to transfer treated water to an outfall at the southern boundary of Parcel 425 discharging to the Back River in compliance with the substantive requirements of a NPDES permit

Groundwater flows from north to south across the Site discharging into the Back River The south interceptor trench would be located and installed at the location shown on Figure 44 to hydraulically control groundwater flow into the river Groundwater would be extracted from the interceptor trench at a rate suitable to maintain a slight (05 feet) hydraulic gradient toward the trench and away from the river The interceptor trench segments along the sides of Parcel 425 would be installed to hydraulically control groundwater flow that could otherwise migrate off-site toward residential areas (Parcels 503 and 464) and the wetlands areas to the west and southeast Groundwater would be extracted from the interceptor trench at a rate suitable to maintain a slight (05 feet) hydraulic gradient toward the trench and away from off-site areas The interceptor trenches would extend to approximately three (3) feet below mean sea level to allow for an adequate collection sump depth The trenches would be filled with clean gravel to

US EPA Region 3 Sauer Dump Site EECA 4-5 HydroGeoLogic Inc April 2009

AR103709

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

a depth approximately three (3) feet above mean sea level A filter fabric would be installed above the gravel zone to minimize silting and the remaining trench depth would be backfilled with native soils Three (3) perforated vertical collection sumps would be installed along the length of each trench and submersible groundwater extraction pumps with level control floats would be installed within each sump Based on permeability and other data provided in the RI and Extent of Contamination Study reports a design flow rate of four (4) gallons per minute would be used Extracted groundwater would be transferred to the treatment building and into two (2) 2500 gallon holding tanks A transfer pump would transfer the groundwater from the holding tank through the two (2) basket strainers through the two (2) GAC absorbers through a recording totalizing flow meter and out to the treated water outfall Spent basket filter bags and GAC would be contained and disposed of or regenerated off-site on an as needed basis For the purposes of the cost estimate it is assumed that the system would be checked by a part-time operator weekly The system would be inspected and repaired as necessary by the operator Quarterly NPDES sampling and analysis and annual reporting would also be performed Quarterly inspections by a process engineer are also included in the cost estimate Detailed cost calculations are presented in Appendix B-2 Alternative 3 requires long-term maintenance of the cover groundwater treatment system and monitoring of the Site conditions Cover maintenance includes periodic inspections and the repair of any damage to the cover Long-term maintenance of the groundwater treatment system would include regularly scheduled monitoring maintenance replacement and disposal of spent basket filters bags and periodic replacement of the GAC Long-term monitoring would include both groundwater and surface water monitoring

414 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment

This alternative consists of the elements of Alternative 2 with the following additional components

bull Excavation of contaminated soils with PCBs greater than 1 ppm andor lead greater than 400 ppm regardless of depth from all parcels for proper off-site disposal

bull Excavation of the contaminated sediments from the affected wetlands regardless of depth All sediments with PCBs greater than 1 ppm andor lead greater than 130 ppm would be excavated for proper off-site disposal

bull Proper off-site landfilling of excavated soils with greater than 1 ppm and less than 500 ppm of PCBs

bull After completion of excavation and confirmation sampling all excavated areas would be restored

bull Installation of a groundwater collection and treatment system and associated long-term monitoring and maintenance as described for Alternative 3 and

bull Recordation of deed notices to ensure that groundwater use is restricted if necessary

US EPA Region 3 Sauer Dump Site EECA 4-6 HydroGeoLogic Inc April 2009

AR103710

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

The estimated lateral extent of the excavation required under this alternative was estimated from soil analytical data and is shown on Figure 45 Excavated soils with PCB concentrations greater than 50 ppm and less than 500 ppm would be excavated and disposed at a RCRA or TSCA-licensed landfill The Waste Management facility in Emelle Alabama was the closest identified facility that has the ability to accept hazardous (metals) waste provided that the PCB concentrations in the waste are less than 500 ppm Soils with PCB concentrations greater than 500 ppm would require incineration and disposal at one of the three facilities mentioned in Section 3344 Excavated soils and sediments that meet the definition of a non-hazardous waste would be disposed at a local non-hazardous waste landfill To ensure selection of the proper off-site disposal facility extensive waste characterization sampling would be required For costing purposes it was assumed that all soils and sediments classified as hazardous waste would be transported to the Waste Management facility in Emelle Alabama with the exception of approximately 7542 cubic feet of soilssediments which would require incineration Estimated volumes for Alternative 4 are contained in Appendix B-3 Under Alternative 4 no compacted soil cover is required because the remaining soils would meet the PRGs as well as the PCB cleanup standards for a ldquoHigh Occupancy Areardquo under TSCA Soil removal to residential based PRGs would also eliminate the need for future land use controls and long-term monitoring The groundwater collection and treatment systems would be the same as for Alternative 3

42 EVALUATION CRITERIA

According to the guidance document Conducting Non-Time-Critical Removal Actions Under CERCLA (EPA 1993) removal alternatives should be evaluated based on effectiveness implementability and cost Effectiveness can be evaluated in terms of protectiveness and ability to achieve removal objectives The protectiveness evaluation should consider public health and the environment impacts on the community impacts to workers involved with removal action implementation and compliance with ARARs Implementability addresses the technical and administrative feasibility of implementing an alternative including the availability of services and materials required for its implementation the ease of construction and operation monitoring considerations the historical reliability of selected technologies and the ease with which the alternative can be integrated with other actions that might be necessary at the Site The total cost for the removal action includes capital and OampM costs both direct and indirect Capital costs consist of the direct costs for items such as labor materials equipment and services plus the indirect costs for remedial design management and contingencies A 15 contingency was utilized in all capital cost estimates for all alternatives OampM costs are the

US EPA Region 3 Sauer Dump Site EECA 4-7 HydroGeoLogic Inc April 2009

AR103711

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

annual post-construction costs necessary to maintain the treatment or containment system OampM costs include such items as operating labor maintenance auxiliary materials and energy A present worth analysis is used to evaluate expenditures that occur over different time periods by discounting all future costs to a common base year In accordance with EPA guidance present worth estimates are calculated using a 7 discount rate over 30 years (EPA 2000) with 2009 as a base year The cost estimates in this report are order-of-magnitude level estimates based on a variety of information including quotes from suppliers generic unit costs vendor information conventional cost estimating guides and professional judgment

43 DETAILED ANALYSIS OF ALTERNATIVES

In this section all the alternatives retained for detailed analysis are evaluated based on the evaluation criteria described in Section 42

431 Alternative 1 No Action

4311 Effectiveness

Because no action would be performed this alternative would not protect human health or the environment Current and future risks from soil and sediment contamination at the Site would not be significantly different from those identified in the baseline risk assessment ARARs would not be met Because no action would be taken this alternative does not pose any risks associated with implementation

4312 Implementability

Because no action would be taken this alternative would be implemented easily

4313 Cost

There are no costs associated with Alternative 1

432 Alternative 2 Surface Cap Excavation and Off-Site Disposal

4321 Effectiveness

This alternative would effectively prevent human and ecological receptors from contacting the contaminated soils and sediments as long as the TSCA cover portion of the remedy is maintained In addition an intact cover would effectively prevent soil and sediment contaminant migration via erosion and overland flow Due to its ability to substantially reduce precipitation infiltration the TSCA soil cover would decrease the potential for soil contaminants to leach to the underlying groundwater However this Site is adjacent to surface

US EPA Region 3 Sauer Dump Site EECA 4-8 HydroGeoLogic Inc April 2009

AR103712

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

water or wetlands on three of four sides has subsurface soil contamination present at depths that are close to the water table and has groundwater that is tidally influenced It might be possible for tidal influences andor severe storms to cause the groundwater surface beneath the cover to increase to such an extent that the groundwater would be in contact with the contaminated soils In this situation contaminant migration via the soil-to-groundwater pathway could occur While Alternative 2 does not initially provide for groundwater treatment if the monitoring program implemented as part of this alternative indicates that unacceptable levels of Site contaminants are impacting the groundwater andor the Back River a groundwater capture and treatment system could be put in place to address the problem Continued maintenance of the cover is required to ensure long-term protection of human health and the environment If the cover were damaged or breached then people or animals could come in contact with the contaminated soilssediments and contaminant migration could occur The Site is next to a tidally-influenced area and is located within the floodplain Storm events and flooding could increase the potential for the cover to be damaged and breached and would increase long-term maintenance requirements Long-term monitoring is required to ensure that future land use remains consistent with the PRGs This alternative would comply with ARARs provided the entire Site is classified as a single Area of Concern (AOC) to meet the land disposal restriction (LDR) criteria in the TSCA and RCRA According to the Superfund LDR Guide 5 (EPA 1989) ldquoplacement does not occur when wastes are left in place or moved within a single Area of Contaminationrdquo The zones of contamination at the Site are contiguous found in adjacent parcels and consistent with the AOC concept The Site cleanup will also meet the risk-based criteria of the TSCA regulations at 40 CFR sect 76161(c) There is potential for short-term impacts during excavation and construction but these impacts can be mitigated through the use of standard engineering controls Short-term impacts to the adjacent wetlands would be addressed by restoring the wetlands to the original grade and re-vegetating Truck shipments required for off-site disposal of the soils could increase the potential for traffic accidents and could disturb the traffic patterns in the local community However these impacts would be short term and maintaining open communication with residents of the community could mitigate these concerns Alternative 2 would decrease soil and sediment contaminant mobility toxicity and volume It would decrease contaminant mobility toxicity and volume in groundwater but would not completely prevent off-site groundwater migration

4322 Implementability

This alternative could be implemented with standard construction equipment and readily available materials and labor No major technical difficulties are anticipated in implementing this alternative However there are only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 ppm These facilities are in Texas

US EPA Region 3 Sauer Dump Site EECA 4-9 HydroGeoLogic Inc April 2009

AR103713

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

and Utah necessitating the use of long distance truck andor rail transportation This off-site transport has the potential to result in off-site contamination through spills or accidents Access agreements and schedule coordination with the owners of Parcels 503 464 295 137 and 574 would be required Construction of a compacted soil cover would limit future uses of Parcel 425 Long-term administrative resources would be required to ensure compliance with the ICs and maintenance of the cover

4323 Cost

This section presents the present worth analysis for the compacted soil cover Uncertainties that could impact the total cost of this alternative include the extent of surficial debris which would require removal and off-site disposal and the volume of sediments and soils to be excavated and disposed off-site

Cost The cost calculations for Alternative 2 are presented in Appendix B-1

The capital cost for Alternative 2 is estimated to be $ 531 Million

The present worth OampM cost is approximately $ 729000

The total project cost (present worth) is estimated to be $ 604 Million

433 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment

4331 Effectiveness

Alternative 3 would be more effective at reducing risks related to Site contamination than Alternative 2 because soils with PCB concentrations greater than 10 ppm (instead of 100 ppm) or lead concentrations greater than 400 ppm (instead of 1000 ppm) would be removed from the Site Additionally Alternative 3 would provide controls to prevent off-site migration of groundwater from beneath the compacted soil cap because it would provide for collection and treatment of groundwater The excavation and off-site disposal of additional contaminated soils and sediments and the construction of a groundwater collection and treatment system would increase short-term impacts including increased excavation and construction activities as well as increased truck traffic Alternative 3 would comply with ARARs if the Site is considered to be a single AOC with respect to LDR compliance as in Alternative 2 However because no soils with PCB concentrations greater than 10 ppm would be left on Site (under the TSCA cover) this alternative would meet the cleanup requirements for a High Occupancy Area under 40 CFR sect 76161 if the self-implementing cleanup provisions were applicable to CERCLA cleanups The groundwater collection and treatment system would have the added benefit of preventing the potential migration of contaminated groundwater to the wetland areas

US EPA Region 3 Sauer Dump Site EECA 4-10 HydroGeoLogic Inc April 2009

AR103714

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

and surface waters Alternative 3 would decrease contaminant mobility toxicity and volume in soils sediments and groundwater

4332 Implementability

Alternative 3 would be somewhat more difficult to implement than Alternative 2 because of the additional volume of soils and sediments to be excavated for off-site disposal and the construction of a groundwater collection treatment and discharge system The additional volume of soils and sediments excavated for off-site disposal would lead to an increase in truck traffic with the resultant impacts to the community and increased risk of accidents and spills While a NPDES permit would not be required to discharge the treated groundwater to the Back River compliance with the substantive provisions of 40 CFR Part 122 would be necessary For groundwater the treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively It would be difficult or impossible to achieve the required PCB levels Additional long-term administrative resources would be required to ensure maintenance and monitoring of the groundwater collection and treatment systems This would include weekly treatment system checks quarterly NPDES sampling analysis and annual reporting quarterly inspections by a process engineer replacement and disposal of spent basket filters bags and periodic regeneration and replacement of GAC Spent basket filter bags would be contained and disposed of as needed

4333 Cost

This section presents the present worth analysis for construction of a surface cap excavation off-site disposal of the soils and sediments and groundwater treatment Uncertainties that could impact the total cost of this alternative include the extent of surficial debris which would require removal and off-site disposal and the volume of sediments and soils to be excavated and disposed off-site The cost calculations for Alternative 3 are presented in Appendix B-2

The capital cost for Alternative 3 is estimated to be $ 777 Million

The present worth OampM cost is approximately $ 163 Million

The total project cost (present worth) is estimated to be $ 939 Million

434 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment

4341 Effectiveness

Because all soils and sediments with contamination concentrations above the PRGs would be removed from the Site Alternative 4 would provide the greatest long-term protection to human

US EPA Region 3 Sauer Dump Site EECA 4-11 HydroGeoLogic Inc April 2009

AR103715

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

health and the environment and more effective control of contaminant migration relative to the other alternatives As with Alternative 3 the groundwater collection and treatment system would prevent the potential migration of residual contaminated groundwater to the wetland areas and surface waters Alternative 4 shares the same short-term excavation construction and transportation impacts identified for Alternative 3 however truck traffic would be greatly increased This alternative would decrease contaminant mobility toxicity and volume in soils sediments and groundwater

4342 Implementability

Because all soils and sediments would be disposed off-site there would be a significant increase in truck traffic relative to the other alternatives Public opposition to the traffic impacts from the extensive off-site transportation requirements of this alternative could potentially make implementability more difficult than for Alternative 3 Off-site transport has the potential to result in off-site contamination through spills or accidents Although an NPDES permit would not be required to discharge the treated groundwater from the groundwater management system to the Back River compliance with the substantive provisions of 40 CFR Part 122 would be necessary The groundwater treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively It would be difficult or impossible to achieve the required PCB treatment levels Long-term administrative resources would be required to ensure maintenance and monitoring of the collection and treatment systems

4343 Cost

This section presents the present worth analysis for excavation off-site disposal of the soils and sediments and groundwater treatment Uncertainties that could impact the total cost of this alternative include the quantity of soils and sediments that would be required to be disposed off-site Cost The cost calculations for Alternative 4 are presented in Appendix B-3

The capital cost for Alternative 4 is estimated to be $ 1141 Million

The present worth OampM cost is approximately $ 132 Million

The total project cost (present worth) is estimated to be $ 1272 Million

44 COMPARATIVE ANALYSIS OF ALTERNATIVES

In this subsection the removal alternatives are compared to each other based on the three evaluation criteria

US EPA Region 3 Sauer Dump Site EECA 4-12 HydroGeoLogic Inc April 2009

AR103716

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

441 Effectiveness

Alternative 1 No Action would not provide long-term protection of human health or the environment nor would it decrease contaminant migration Alternative 2 (Surface Cap Excavation and Off-Site Disposal) Alternative 3 (Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment) and Alternative 4 (Excavation Off-Site Disposal and Groundwater Collection and Treatment) would reduce human health and ecological risks from soil and sediment contamination by eliminating or reducing the potential for contact with the contaminated soils and sediments and by reducing the volume of contamination in soils and sediments Alternatives 2 3 and 4 would decrease migration of soil and sediment contaminants to other media by requiring installation of a cap over the contaminants left on-site (Alternatives 2 and 3) or by removing the contamination (Alternative 4) Under Alternatives 2 and 3 there would be the long-term potential for groundwater to contact the contaminated soils and for storms and flood events to damage the containment system but because Alternative 3 removes contaminants down to a lower concentration the potential for groundwater impacts is reduced Both alternatives would require long-term maintenance to ensure the integrity of the compacted soil cover Alternatives 3 and 4 include a groundwater collection and treatment system that would reduce the spread of Site contaminants by preventing or limiting the migration of groundwater to the wetlands areas and the Back River For these reasons Alternative 2 would provide less long-term protection than Alternatives 3 or 4 Alternative 4 would provide the highest degree of long-term protection to human health and the environment and would prevent future migration of contaminants Alternative 1 would not comply with ARARs Alternatives 2 3 and 4 would comply with all potential ARARs although Alternatives 2 and 3 would require that the entire Site be considered a single Area of Concern for purposes of meeting LDR requirements Although Alternative 2 would not meet the PCB cleanup levels (lt10 ppm left on-site under a TSCA cap) in the self-implementing provisions of 40 CFR sect 76161(a)(4)(i)(A) for High Occupancy Areas the self-implementing cleanup provisions are not binding upon cleanups conducted under CERCLA and this alternative would meet the risk-based criteria of 40 CFR sect 76161(c) Alternatives 2 3 and 4 would reduce the mobility toxicity and volume of the contaminants in the soils and sediments with Alternative 4 having the greatest reduction followed by Alternative 3 and Alternative 2 Alternative 1 would not affect contaminant mobility toxicity or volume The implementation of Alternative 1 would not pose any additional short-term risks to the ones currently posed by the Site contamination Short-term risks to construction workers surrounding communities and the environment are expected to occur from the implementation of Alternatives 2 3 and 4 These risks include exposure to dust and vapor during excavation and construction activities as well as continued risks from the current Site conditions before the alternatives are fully implemented Alternatives 3 and 4 pose greater short-term impacts as compared to Alternative 2 due to more extensive excavation and off-site transportation of

US EPA Region 3 Sauer Dump Site EECA 4-13 HydroGeoLogic Inc April 2009

AR103717

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 4-14 HydroGeoLogic Inc April 2009

contaminated materials and additional construction activity associated with the groundwater collection and treatment system Engineering controls personal protective equipment and vapor and dust suppression measures can be used to mitigate the potential risks associated with the excavation and construction activities

442 Implementability

Alternative 1 requires no action and is therefore the most easily implemented For Alternatives 2 3 and 4 there is the possibility that the owners of Parcels 503 464 295 137 and 574 would not provide access to allow excavation of the contaminated soils on their properties However since all the property owners have granted access for sampling activities it is assumed that access would be granted to allow cleanup of their properties Alternatives 2 3 and 4 would require limiting the future use of Parcel 425 because of the need to protect monitor and maintain the compacted soil cover andor the groundwater collection and treatment system All three alternatives require long-term maintenance The long-term maintenance requirements of Alternative 3 would require additional resources as compared to Alternatives 2 and 4 Alternative 2 would require the fewest additional resources of the three alternatives There could be public opposition to alternatives 2 and 3 as they would leave hazardous substances in place at the Site There could also be public opposition to the excavation activities and increased traffic impacts associated with the off-site transportation of the excavated soils and sediments as part of all three alternatives however Alternatives 3 and 4 would have a significantly greater traffic impact due to the increased volumes of contaminated soils and sediments that would be disposed off-site as well as increased excavation and construction activities

443 Cost

Alternative 1 has the least cost $0 Alternative 2 has the next lowest cost $ 604 million Of the removal alternatives which provide some measure of groundwater control in addition to soil and sediment remediation Alternative 3 with a $ 939 million present worth is the least expensive and Alternative 4 with a $ 1272 million present worth is the most expensive alternative

AR103718

TABLE

AR103719

Table 41 Individual Evaluation of Remedial Alternatives for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 1 of 2

H

ydroGeoL

ogic Inc March 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

Criteria Alternative 1 No Action

Alternative 2 Surface Cap Excavation

and Off-Site Disposal

Alternative 3 Surface Cap Excavation

Off-Site Disposal and Groundwater Collection and

Treatment

Alternative 4 Excavation Off-Site

Disposal and Groundwater Collection

and Treatment 1 EFFECTIVENESS

Long-term protection of human health and the environment

No significant reduction in risk Not protective of human health or the environment

Would provide long-term protection of human health and the environment provided that the cover is maintained properly

Would provide long-term protection of human health and the environment provided that the cover and groundwater treatment system are maintained properly

Would provide long-term protection of human health and the environment provided that the groundwater treatment system is maintained properly

Long-term prevention of contaminant migration

No reduction in contaminant migration potential

Migration of soil and sediment contaminants would be significantly decreased There would be potential for groundwater contaminants to increase if groundwater comes into direct contact with contaminated subsurface soils

Migration of soilsediment and groundwater contaminants would be significantly decreased Although the potential would exist (as in Alternative 2) for GW to come into contact with residual contamination there would be lower concentrations of contamination than in Alternative 2

Because contaminated materials would be removed from Site down to the PRGs of 1 ppm PCBs and 400 ppm of lead migration of groundwater contaminants would be significantly decreased

Compliance with ARARs

Would not comply with ARARs

Would comply with potential ARARs as long as the entire Site is considered a single Area of Concern

Would comply with potential ARARs as long as the entire Site is considered a single Area of Concern

Would comply with potential ARARs

Short-term protection of human health and the environment

No short-term impacts

Impacts from excavation and construction activities could be mitigated with engineering controls personal protective equipment and vapordust suppression measures

See Alternative 2 Alternative 3 would pose increased potential for traffic accidents and off-site spills due to off-site transportation of additional excavated soils and sediments

See Alternative 2 Alternative 4 would pose increased potential for traffic accidents and off-site spills due to off-site transportation of all excavated soils and sediments

US E

PA

Region 3

AR103720

Table 41 (continued) Individual Evaluation of Remedial Alternatives for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 2 of 2

H

ydroGeoL

ogic Inc March 2009

Criteria Alternative 1 No Action

Alternative 2 Surface Cap Excavation

and Off-Site Disposal

Alternative 3 Surface Cap Excavation

Off-Site Disposal and Groundwater Collection and

Treatment

Alternative 4 Excavation Off-Site

Disposal and Groundwater Collection

and Treatment

Decrease in contaminant mobility toxicity and volume

No change in contaminant mobility toxicity or volume

Contaminant mobility toxicity and volume would be decreased in soils and sediments Because of the proximity of contaminated materials to groundwater and the tidal influence on the local groundwater it is possible that contaminants would continue to spread to the groundwater

Contaminant mobility toxicity and volume would be decreased to a greater degree than Alternative 2 It is possible that contaminants would continue to spread to the groundwater but the groundwater management system would reduce the mobility of these contaminants

Contaminant mobility toxicity and volume would be decreased to a greater degree than Alternative 3

2 IMPLEMENTABILITY

Potential Implementability Issues

None

Owners might not grant access to allow excavation of contaminated soils andor sediments Parcel 425 would require limited future land use options associated with compacted soil cover There could be local opposition to the capping of hazardous substances in place at the Site

See Alternative 2 It is unknown if technology can attain the PRGs for PCBs

Owners might not grant access to allow excavation of contaminated soils andor sediments Parcel 425 would require limited future land use options associated with the groundwater collection and treatment system There could be public opposition to the extensive truck traffic required for off-site transportation of the contaminated soils and sediments It is unknown if technology can attain the PRGs for PCBs

3 COST Total Project Cost $0 $ 604 Million $ 939 Million $ 1272 Million

AR103721

FIGURES

AR103722

Legend

Figure 41Alternative 2

Proposed Limits ofSoil Excavation

XEPA010SauerCost_Analysis_DraftExc_Limits_Alt2mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

XW

XWXW

XW

XWXWXWXWXWXWXWXWXWXW

XW

XWXWXW

XWXW

XW

XW

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3

Parcel Boundary

NoteThe proposed surface cap under Alternative 2 will extend over the entire area of Parcel 425The proposed limits of sediment excavation are shown on Figure 15

Grid Soil Samples

0 80 16040

SCALE IN FEET

Proposed Limits of Excavation

Surveyed Wetlands(ENSAT 2005)

Subsurface Soil Sample ExceedingAlternative 2 ConcentrationRequiring Excavation

Surface and Subsurface Soil SampleExceeding Alternative 2 ConcentrationRequiring Excavation

XW

Surface Soil Sample ExceedingAlternative 2 ConcentrationRequiring Excavation

AR103723

Legend

Figure 42Alternatives 2 and 3

Proposed Extentof TSCA Cap

XEPA010SauerCost_Analysis_DraftCompacted_Soil_Alt2-3mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

Grid Soil Samples

Surveyed Wetlands(ENSAT 2005)

Proposed Extent of TSCA Cap

AR103724

Legend

Figure 43Alternative 3

Proposed Limits ofSoil Excavation

XEPA010SauerCost_Analysis_DraftExc_Limits_Alt3mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

X

X

X XXXX X

X

X

XXXXXXXXXX

X

XXX

XXX

XX

X

X

X

W

W

W WWWW W

W

W

WWWWWWWWWW

W

WWW

WWW

WW

W

W

W

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

NoteThe proposed surface cap under Alternative 3 will extend over the entire area of Parcel 425The proposed limits of sediment excavation are shown on Figure 15

Grid Soil Samples

Proposed Limits of Excavation

Surveyed Wetlands(ENSAT 2005)

Surface Soil Sample ExceedingAlternative 3 ConcentrationRequiring Excavation

Subsurface Soil Sample ExceedingAlternative 3 ConcentrationRequiring Excavation

Surface and Subsurface Soil SampleExceeding Alternative 3 ConcentrationRequiring Excavation

XW

AR103725

Legend

Figure 44Alternatives 3 and 4

Proposed GroundwaterInterceptor Trench Locations

XEPA010SauerCost_Analysis_DraftGW_TrenchmxdMap Source NAIPMiddle River MD 2007022309 PD

HGLmdashDraft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

Parcel 425

Parcel 137

Parce

l 295

Parce

l 464

Parce

l 503

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

Surveyed Wetlands(ENSAT 2005)

Notes1 All soil samples shown on figure contained one or more PRG exceedances2 All grid soil samples collected exceeded PRGs

Groundwater Interceptor Trench

Groundwater Interceptor Trench

AR103726

Legend

Figure 45Alternative 4

Proposed Limits ofSoil Excavation

XEPA010SauerCost_Analysis_DraftExc_Limits_Alt4mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

XW

XW

XW XWXWXWXWXW XW

XW

XW

XWXWXWXWXWXWXWXWXWXW

XW

XWXWXW

XWXWXW

XWXW

XW

XW

XW

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

NoteThe proposed limits of sediment excavation are shown on Figure 15

Grid Soil Samples

Proposed Limits of Excavation

Surveyed Wetlands(ENSAT 2005)

Surface Soil Sample ExceedingAlternative 4 ConcentrationRequiring Excavation

Subsurface Soil Sample ExceedingAlternative 4 ConcentrationRequiring Excavation

Surface and Subsurface Soil SampleExceeding Alternative 4 ConcentrationRequiring Excavation

XW

AR103727

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

50 SUMMARY

Based on the potential ARARs and PRGs presented in Section 2 four removal alternatives were developed These alternatives were 1) No Action 2) Surface Cap Excavation and Off-Site Disposal 3) Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment and 4) Excavation Off-Site Disposal and Groundwater Collection and Treatment Each alternative was evaluated with respect to effectiveness implementability and cost Alternative 1 No Action would not be an effective alternative This alternative would not protect human health or the environment would not prevent contaminant migration and would not comply with ARARs Alternatives 2 3 and 4 generally provide effective approaches to the protection of human health and the environment All three alternatives would comply with ARARs although Alternatives 2 and 3 rely on the classification of the entire Site as a single Area of Concern Alternatives 2 3 and 4 would decrease migration of soil and sediment contaminants to other media Under Alternatives 2 and 3 there is the long-term potential for groundwater to contact the contaminated soils and for storms and flood events to damage the containment system but because Alternative 3 removes contaminants down to a lower concentration the potential for groundwater impacts is reduced Both alternatives would require long-term maintenance to ensure the integrity of the compacted soil cover Alternatives 3 and 4 include a groundwater collection and treatment system that reduces the spread of Site contaminants by preventing or limiting the migration of groundwater to the wetlands areas and the Back River For these reasons Alternative 2 would provide less long-term protection than Alternatives 3 or 4 Alternative 4 would provide the highest degree of long-term protection to human health and the environment and would prevent future migration of contaminants All alternatives would prevent continued migration of soil and sediment contaminants Alternatives 2 3 and 4 each would pose short-term risks to workers and the community These risks however could be mitigated through use of engineering controls personal protective equipment and vapordust suppression measures Alternative 4 would pose the greatest short-term risks because of the significant increase in truck traffic required Alternative 2 should pose the lowest level of short-term risks Alternatives 2 3 and 4 would all decrease contaminant mobility and would reduce contaminant toxicity and volume The reduction in contaminant toxicity mobility and volume achieved with Alternative 4 would be the greatest followed those seen with Alternative 3 The implementability evaluation indicated that Alternative 4 would likely be the most difficult to implement because of the need for the groundwater management system and the off-site disposal of all contaminated soils and sediments Alternatives 3 and 4 may be difficult to implement because of the PRGs for groundwater Aside from the No Action Alternative Alternative 2 would be the easiest to implement

US EPA Region 3 Sauer Dump Site EECA 5-1 HydroGeoLogic Inc April 2009

AR103728

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 5-2 HydroGeoLogic Inc April 2009

Alternative 2 at a total present worth of $ 604 million would be less expensive than Alternatives 3 and 4 Alternative 4 has the both the highest degree of protectiveness and the greatest estimated cost $ 1272 million Alternative 3 would provide a high degree of protection at a cost of $ 939 million The comparison performed as part of this evaluation indicates that while Alternative 4 appears to be the most protective Alternatives 2 through 4 are all generally protective The incremental cost increases (approximately 55 between Alternatives 2 and 3 and 35 between Alternatives 3 and 4) are accompanied by increases in overall protectiveness that are difficult to quantify accurately and in the case of the groundwater pathway may be difficult or impossible to achieve in practice Alternative 2 appears to be the most easily implemented and least costly protective approach for this Site

AR103729

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

60 REFERENCES

Air Force Center for Environmental Excellence (AFCEE) 1999 ldquoSurvey of Air Force Landfills Their Characteristics and Remediation Strategiesrdquo Prepared for Air Force Center for Environmental Excellence by Mitretek Systems July 1999

Environmental Service and Technology Corporation (ENSAT) 2002a ldquoRemedial

Investigation and Focused Feasibility Study ndash Sauer Dump MD-181 4225 Lynhurst Road Baltimore Baltimore County Marylandrdquo ENSAT July 2002

ENSAT 2002b ldquoBaseline Risk Assessment Datascreen for Sauer Dump Dundalk

Marylandrdquo ENSAT July 2002 ENSAT 2005 ldquoRemedial Investigation - Sauer Dump MD-181 4225 Lynhurst Road

Baltimore Baltimore County Marylandrdquo ENSAT August 2005 Environmental Protection Agency (EPA) 2007 ldquoAction Memo - Request for Removal Action

and Exemption from the $2 Million Statutory Limit ndash Sauer Dumprdquo US Environmental Protection Agency August 3 2007

EPA 2006 ldquoNational Recommended Water Quality Criteriardquo Office of WaterOffice of

Science and Technology US Environmental Protection Agency July 2006 httpwwwepagovwatersciencecriteriawqctablenrwqc-2006pdf

EPA 2000 ldquoA Guide to Developing and Documenting Cost Estimates during the Feasibility

Studyrdquo EPA 540-R-00-002 OSWER 93550-75 US Environmental Protection Agency July 2000

EPA 1994 ldquoRevised Interim Soil Lead Guidance for CERCLA Sites and RCRA Corrective

Action Facilitiesrdquo OSWER Directive 93554-12 US Environmental Protection Agency July 14 1994

EPA 1993 Conducting Non-Time-Critical Removal Actions Under CERCLA EPA540F-

94009 EPA 1992 ldquoCERCLASUPERFUND Orientation Manualrdquo EPA542R-92005 US

Environmental Protection Agency - Office of Solid Waste and Emergency Response Technology Innovation Office October 1992

EPA 1989 ldquoSuperfund LDR Guide 5 - Determining When Land Disposal Restictions

(LDRs) Are Applicable to CERCLA Response Actionsrdquo Environmental Protection Agency - Office of Solid Waste and Emergency Response - 93473-05FS July 1989

US EPA Region 3 Sauer Dump Site EECA 6-1 HydroGeoLogic Inc April 2009

AR103730

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 6-2 HydroGeoLogic Inc April 2009

Federal Remediation Technology Roundtable (FRTR) 2002 ldquoRemediation Technologies Screening Matrix and Reference Guide Version 40rdquo Federal Remediation Technology Roundtable httpwwwfrtrgovmatrix2top_pagehtml

Interstate Technology amp Regulatory Council (ITRC) 2003 ldquoTechnical and Regulatory

Guidance for SurfactantCosolvent Flushing of DNAPL Source Zonesrdquo DNAPLs-3 Washington DC Interstate Technology amp Regulatory Council DNAPLs Team Available on the Internet at httpwwwitrcweborg

ITRC 1997 ldquoTechnical and Regulatory Guidance for Soil Washingrdquo Interstate Technology

and Regulatory Council ndash Metals in Soil Work Team December 1997 Malcolm Pirnie 2007 ldquoExtent of Contamination Study ndash Sauer Dump Site Dundalk

Baltimore County Marylandrdquo Malcolm Pirnie Inc June 2007

AR103731

APPENDICES

AR103732

APPENDIX A

HISTORIC ANALYTICAL DATA TABLES Table A1a-b ndash Surface Soil Analytical Data Table A2a-c ndash Subsurface Soil Analytical Data Table A3 ndash Sediment Analytical Data Table A4 ndash Surface Water Analytical Data Table A5 ndash Groundwater Analytical Data

AR103733

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0011 B 025 001 U 1 U 1 U 0044 B 0056 B 0036 B 0071 B 0029 B 0093 B 0007 JB 0013 B 0011 U 0018 BAcetonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UBromoform 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UBromomethaneMethyl bromide 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Un-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UCarbon Tetrachloride 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UChlorobenzene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UChloroethaneEthyl chloride 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U2-ChloroethanolEthylene chlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 001 U 50 U 50 U nr nr nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0002 JB 0011 U 0011 U 0002 JB 0015 U 0001 JB 0011 U 0011 U 0002 JBChloromethaneMethyl chloride 001 U 001 U 001 U 25 U 25 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UChloroprene nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr12-Dibromoethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDichlorodifluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr11-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U12-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U11-Dichloroethene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Ucis-12-Dichloroethene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrtrans-12-Dichloroethene 0005 U 0005 U 0005 U 5 U 5 U nr nr nr nr nr nr nr nr nr nr12-Dichloroethene (Total) nr nr nr nr nr 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U13-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Utrans-13-Dichloropropene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg18 93 24 34 14 9 9 309 16 13 9

1 1 1 1 1 1 11 11 1 1not reported not reported not reported not reported

no no no no no no nono nono no no no noyes yesyes yes yes yes yes yes yes yes yes yesyes yes

no no nono no no nono no no no no no noyes yes yes yes yes yes yes yes yes yesyes yes yes yes

yes yes yes yes yes yes yesyes yesyes yes no no yesyes yesyes yes yes yes yes yes yes yes yes yesyes yes

BackgroundDuplicate of S-5Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilNUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS

120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

yes

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

no

161

062785

not reported1

yes

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

yesno

yes

mgKg

Page 1 of 30

AR103734

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone 001 U 001 U 001 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U2-Hydroxypropionitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrIsopropylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrp-Isopropyl Toluene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 00073 B 00071 B 0011 B 20 9 0035 B 0086 B 003 B 0042 B 0048 B 0043 B 0025 B 0016 B 0016 B 0027 B1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 001 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrStyrene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U1112-Tetrachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UTetrachloroethene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0002 J 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 00067 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr111-Trichloroethane 0014 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U112-Trichloroethane 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UTrichloroethene 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrTrichlorofluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr123-Trichloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U 001 U 1 U 1 U nr nr nr nr nr nr nr nr nr nrVinyl Chloride 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U m+p-Xylenes nr nr nr nr nr nr nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 0005 U 10 U 10 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0002 J 0014 U

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg9 30

mgKg mgKg mgKg mgKg mgKg mgKg24 34 14 9161 18 93 9 16 13 9

1 11 1 1 1 1 1 11 1 1 1not reportednot reported not reported not reported not reported

Page 2 of 30

AR103735

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 0039 J 04 J 033 J 0048 J 36 U 11 U 047 UAcenaphthylene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 016 J 038 U 36 U 11 U 047 UAcetophenone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAnthracene 22 U 22 U 22 U nr nr 0077 J 12 U 037 U 011 J 06 J 11 J 016 J 36 U 11 U 047 UAtrazine nr nr nr U U nr nr nr nr nr nr nr nr nr nrBenzaldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzo(a)Anthracene 22 U 22 U 22 U nr nr 046 2 J 012 J 081 21 36 089 038 J 029 J 047 UBenzo(a)Pyrene 22 U 22 U 22 U nr nr 053 32 J 016 J 04 18 28 061 042 J 028 J 047 UBenzo(b)fluoranthene 18 J 22 U 22 U nr nr 12 J 47 J 047 J 088 J 51 J 7 J 2 J 092 J 067 J 012 JBenzo(ghi)Perylene 22 U 22 U 22 U nr nr 036 U 19 J 037 U 036 U 13 U 05 J 061 36 U 11 U 047 UBenzo(k)fluoranthene 22 U 22 U 22 U nr nr 12 J 47 J 047 J 088 J 51 J 7 J 2 J 092 J 067 J 012 JBenzylbutylphthalateButylbenzylphthalate 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 29 22 043 J 018 J 0067 J11-Biphenyl nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Bromophenyl-phenylether 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UCaprolactam nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCarbazole nr nr nr nr nr 0047 J 12 U 037 U 009 J 053 J 053 J 01 J 36 U 11 U 047 U4-Chloroaniline 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Chloroethoxy)Methane 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Chloroethyl)Ether 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Chloroisopropyl)Ether 22 U 22 U 22 U nr nr nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U4-Chloro-3-Methylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U2-Chloronaphthalene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U2-Chlorophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U4-Chlorophenyl-phenylether 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UChrysene 12 J 22 U 22 U nr nr 054 22 J 016 J 057 19 31 066 039 J 026 J 047 UDibenzo(ah)Anthracene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 026 J 038 U 36 U 11 U 047 UDibenzofuran 22 U 22 U 22 U nr nr 036 U 12 U 037 U 0044 J 031 J 031 J 0074 J 36 U 11 U 047 U12-Dichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U13-Dichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U14-Dichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U33-Dichlorobenzidine 46 U 44 U 46 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U24-Dichlorophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDiethylphthalate 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U24-Dimethylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDimethyl Phthalate 22 U 22 U 22 U nr nr 0048 J 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDi-n-Butylphthalate 78 19 JB 18 JB nr nr 0045 JB 12 U 004 JB 036 U 13 U 022 JB 012 JB 071 JB 11 U 047 U46-Dinitro-2-Methylphenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U24-Dinitrophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U24-Dinitrotoluene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U26-Dinitrotoluene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDi-n-Octyl Phthalate 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Ethylhexyl)Phthalate 22 15 J 34 nr nr 045 B 12 U 022 JB 071 B 044 JB 16 B 13 B 29 JB 13 B 0082 JBFluoranthene 15 J 22 U 25 nr nr 093 2 J 031 J 091 71 75 2 07 J 055 J 0063 JFluorene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 0061 J 06 J 047 J 0086 J 36 U 11 U 047 UHexachlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UHexachlorobutadiene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UHexachlorocyclopentadiene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UHexachloroethane 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UIndeno(123-cd)Pyrene 22 U 22 U 22 U nr nr 036 U 19 J 037 U 036 U 13 U 02 J 038 U 36 U 11 U 047 UIsophorone 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 016 J 038 U 36 U 11 U 047 U2-Methylnaphthalene 22 U 22 U 22 U nr nr 0041 J 12 U 037 U 0046 J 13 U 017 J 0098 J 24 J 11 U 047 U2-Methylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U4-Methylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 014 J 15 U 038 U 36 U 11 U 047 UMethylMercury nr nr nr nr nr nr U nr U nr U nr U nr U nr U nr U nr U nr U nr UNaphthalene 22 U 22 U 22 U nr nr 004 J 12 U 037 U 0062 J 014 J 027 J 012 J 20 015 J 047 U2-Nitroaniline 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U3-Nitroaniline 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U4-Nitroaniline 112 U 112 U 114 U nr nr 0088 J 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 UNitrobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U2-Nitrophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U4-Nitrophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 UN-Nitroso-Di-n-Propylamine 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UN-Nitrosodiphenylamine 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U22-Oxybis(1-Chloropropane) nr nr nr nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UPentachlorophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 UPhenanthrene 063 J 22 U 13 J nr nr 026 J 12 U 0086 J 042 56 46 072 047 J 026 J 047 UPhenol 22 U 22 U 22 U nr nr 0092 J 12 U 0085 J 0046 J 13 U 15 U 0083 J 21 018 J 0082 JPyrene 14 J 13 J 25 nr nr 084 25 J 025 J 1 45 5 15 065 J 043 J 0051 J124-Trichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U245-Trichlorophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U246-Trichlorophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U

mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg34 14 9 9 309 16 13 9 24

1 1 3 3 3 11 105 5 1 30

mgKg

5Not reported Not Reported Not Reported

mgKg mgKg

Page 3 of 30

AR103736

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 15590 13830 10510 nr nr 6840 4820 4670 7220 7360 9850 16400 1460 8820 8850 Antimony 31 U 29 U 31 U 21 5 U 36 U 36 U 37 U 4 U 35 U 88 B 217 563 35 U 41 UArsenic 14 J 243 J 238 J 133 179 68 2 B 22 B 23 B 39 156 296 23 B 28 33 Barium 237 176 215 nr nr 758 644 283 B 625 425 B 271 728 358 B 618 709 Beryllium 3 U 3 U 3 U 05 U 05 U 059 B 03 B 053 B 038 B 045 B 069 B 059 B 013 B 058 B 058 BCadmium 277 3 U 346 473 539 072 B 021 U 022 U 024 U 035 U 41 186 11 B 036 U 042 UCalcium 89630 106980 67360 nr nr 52400 46900 14300 59200 61100 30500 26500 6660 20200 1860 Chromium 346 163 356 130 107 361 241 109 27 392 134 645 242 313 143 Chromium III nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 24 U 27 U 25 U nr nr 39 B 32 B 24 B 62 B 78 B 147 196 85 B 65 B 135 BCopper 381 323 377 756 573 429 335 168 279 275 1540 1070 928 362 168 Iron 31440 15280 22600 nr nr 12500 8490 9260 13500 14700 59600 85600 9680 21200 9790 Lead 371 J 209 J 827 J 1489 2542 672 903 251 946 488 1170 3160 600 875 532 Magnesium 25940 20550 15590 nr nr 19800 17200 3360 10100 11800 24000 6380 2740 8610 1040 BManganese 1060 J 809 J 731 J nr nr 525 197 864 386 185 2910 1440 195 382 511 Mercury 062 03 049 77 75 027 81 031 032 006 U 31 56 16 028 009 BNickel 199 22 U 169 641 773 608 92 49 B 19 226 882 304 449 46 112 Potassium 2630 1790 J 2380 J nr nr 1020 B 855 B 482 B 1140 B 1210 731 B 572 B 166 B 693 B 405 BSelenium 101 3 U 3 U 42 016 21 095 B 082 B 15 17 8 182 21 097 U 14 Silver 5 U 6 U 5 U 169 145 17 B 054 U 054 U 059 U 14 B 86 116 17 B 17 B 19 BSodium 693 J 738 J 594 J nr nr 187 B 135 B 694 B 297 B 198 B 327 B 338 B 704 B 130 B 509 BThallium 6 U 5 U 6 U 12 5 U 026 U 029 U 028 U 032 U 092 U 092 U 093 U 095 U 095 U 1 UTin 19 U 22 U 20 U nr nr nr nr nr nr nr nr nr nr nr nrVanadium 24 U 27 U 25 U nr nr 779 237 197 486 394 119 551 73 B 318 247 Zinc 543 497 540 2920 2609 109 163 48 263 109 1910 4790 420 108 755 Cyanide 12 U 13 U 12 U nr nr 055 U 054 U 054 U 061 U 061 U 061 U 065 U 065 U 062 U 071 U

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg131 229 244 29217 197 117 114 195 224 247 232

1 1Not Reported 1 11 1 1 1 1 1

mgKg

Not Reported129 178 12

Not Reported

Page 4 of 30

AR103737

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 0039 U 0041 U 0036 U U U 00018 U 00037 0002 U 00019 U 00032 0026 U 02 U 00037 U 001 00024 Ualpha-BHC 0039 U 0041 U 0036 U U U 00018 U 000012 J 0002 U 00019 U 000024 J 000068 J 02 U 00037 U 00019 U 00024 Ubeta-BHC 0039 U 0041 U 0036 U U U 00018 U 0002 U 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 000051 Jdelta-BHC 0039 U 0041 U 0036 U U U 00018 U 0002 U 000022 J 00019 U 00022 U 0026 U 02 U 00037 U 0002 00024 Ugamma-BHC (Lindane) 0039 U 0041 U 0036 U U U 00018 U 0002 U 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 00024 Ualpha-Chlordane nr nr nr U U 00018 U 0002 U 0003 00019 U 0017 0026 U 02 U 00037 U 0026 000045 Jgamma-Chlordane nr nr nr U U 00018 U 00042 00027 00019 U 003 0026 U 02 U 00011 J 005 00024 UChlordane total 0385 U 0405 U 036 U U U nr nr nr nr nr nr nr nr nr nr44-DDD 0077 U 0081 U 0072 U U U 00036 U 00039 U 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 00047 U44-DDE 0077 U 0081 U 0072 U U U 00036 U 00039 U 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 00047 U44-DDT 0077 U 0081 U 0072 U U U 00036 U 00039 U 00038 U 00036 U 00028 J 005 U 038 U 00073 U 00036 U 000033 JDieldrin 0077 U 0081 U 0072 U U U 00036 U 00088 00038 U 00036 U 0017 005 U 038 U 00073 U 00036 U 000023 JEndosulfan I 0039 U 0041 U 0036 U U U 00018 U 0002 U 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 00024 UEndosulfan II 0077 U 0081 U 0072 U U U 00036 U 000033 J 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 001 Endosulfan sulfate 0077 U 0081 U 0072 U U U 00036 U 000049 J 0000096 J 00036 U 000046 J 0019 J 02 J 00073 U 00036 U 00047 UEndrin 0077 U 0081 U 0072 U U U 00036 U 00083 00038 U 00036 U 001 005 U 038 U 00073 U 00036 U 00011 JEndrin aldehyde 0077 U 0081 U 0072 U U U 00036 U 00039 U 000024 J 00036 U 00043 U 005 U 038 U 00073 U 00024 J 00047 UEndrin ketone 0077 U 0081 U 0072 U U U 000009 J 00042 J 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 00047 UHeptachlor 0039 U 0041 U 0036 U U U 00018 U 000069 JB 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 00024 UHeptachlor epoxide 0039 U 0041 U 0244 N U U 00018 U 0002 U 0002 U 00019 U 000022 J 0026 U 02 U 00037 U 00019 U 00024 UMethoxychlor 0077 U 0081 U 0072 U U U 0018 U 002 U 002 U 0019 U 0023 B 0035 JB 2 U 00054 JB 00013 JB 000071 JBToxaphene 077 U 081 U 072 U U U 018 U 02 U 02 U 019 U 022 U 26 U 20 U 037 U 019 U 024 UAroclor-1016 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1221 0385 U 0405 U 036 U U U 0073 U 0078 U 0078 U 0073 U 0088 U 1 U 77 U 015 U 0074 U 0094 UAroclor-1232 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1242 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1248 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1254 4557 3305 6565 62 110 016 0039 U 012 032 0043 U 29 150 11 048 0047 UAroclor-1260 077 U 081 U 072 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UTotal PCBs 4557 3305 6565 62 110 016 012 032 29 150 11 048

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

Incomplete lab report No Other Pesticides or PCBs detected

Incomplete lab report No Other Pesticides or PCBs detected

mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg13 9 24 34Not Reported Not Reported 9 16 14 9 9 301 1 1 10 1 and 5 1100 210 10 1 1

Not Reported Not Reported Not Reported10

Not ReportedmgKg

Page 5 of 30

AR103738

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr 04198 U 04287 03753 U 03703 U 0363 U 03745 U 03583 U 04443 U 03592 nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 02793 02106 02093 01892 01624 01727 00878 01865 0141 nr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgNA NANA NA NA NA NA NA NA

Not Reported Not Reported Not Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot ReportedEPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260

no no no no no no no nono nono no nono noyes yes yes yes yesPCBs PCBs PCBs PCBs yes yes yes yesPCBs PCBs

no no no no no no no no no nono no no no noyes yesyes yes yes yes yes yes yesyes yesyes yes yes yes

no no yes yes yes yes yes yesyes yesno no yesno noyes yes yes yes yesno no no no yes yes yes yesno no

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Page 6 of 30

AR103739

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl Chloride m+p-Xyleneso-XyleneXylenes (Total)

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 00933 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 00912 00832 00751 U 00741 U 00726 U 00754 00717 U 00988 00705 nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 02354 01987 01828 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 01538 01584 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 02347 nr nr nr nr nr nr nr nrnr nr nr nr nr nr 02914 nr nr nr nr nr nr nr nrnr nr nr nr nr nr 05261 01442 U 01501 U 01481 U 01452 U 01498 U 01433 U 01777 U 01355 U

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded

mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKgNA NANA NA NA NANA NA NA

Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported Not Reported Not Reported Not ReportedEPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260

Page 7 of 30

AR103740

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U J Jnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nrnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U J U Jnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr J J J U B B B B Bnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U J J U Unr nr nr nr nr nr U U U U U U U Jnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nrnr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr 8039 E 871 Enr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U J J J U Jnr nr nr nr nr nr U U U U U U U U

Incomplete lab report No SVOCs detected

Incomplete lab report No other SVOCs detected

Incomplete lab report No other SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

mgKgmgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgNot reportedNA NA NA Not Reported Not reported Not reported Not reportedNA

EPA 625 EPA 625EPA 625 EPA 625 EPA 625EPA 625 EPA 625 EPA 625 EPA 625

Page 8 of 30

AR103741

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag3475 8270 6484 6817 8117 14611 10768 8812 9560 4347 9785 63780 8393 10860 13859

10 U 10 U 10 U 10 U 10 U 10 U 566 25 U 12 336 25 U 25 U 25 U 25 U 25 U137 162 122 262 54 05 U 141 129 331 13 957 679 222 3055 3143 103 199 1225 435 577 1132 166 100 396 191 177 514 348 571 848 025 U 047 025 028 238 112 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U178 18 104 735 469 284 228 223 504 206 785 5 U 5 U 5 U 5 U

27585 26998 37572 14720 22380 100550 11935 15952 12179 42072 13471 17532 48377 44415 19243 468 108 54 23 291 124 110 130 378 475 742 192 244 35 177 nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr nr nr nrnr U nr U nr U nr U nr U nr U nr nr nr nr nr nr nr nr nr77 72 5 41 29 24 124 135 229 157 552 497 5 U 5 U 62 216 449 255 97 1236 217 394 270 3303 445 241 25 174 355 33

8047 67528 18682 31513 8983 2677 83701 95937 191564 59983 23296 12549 9139 12305 14426 504 1274 544 432 365 76 1409 5944 2232 1407 529 341 449 30 479

7829 8548 9922 4548 3700 3558 6192 4581 5246 960 3000 7343 9079 8993 8959 758 906 619 545 220 960 873 385 2183 872 415 842 137 344 557 169 242 151 149 032 029 333 098 561 619 266 06 U 017 011 01 U472 685 368 12 196 9 87 120 285 303 34 101 126 102 103 838 556 706 651 638 1842 738 634 565 905 780 863 1606 699 2101 125 U 125 U 125 U 125 U 125 U 125 U 14 16 926 895 167 125 U 125 U 125 U 125 U13 134 14 17 11 05 U 25 U 25 U 389 25 U 25 U 25 U 25 U 25 U 25 U143 206 134 102 853 556 986 2262 2557 7875 587 267 224 1186 687 10 U 10 U 10 U 10 U 10 U 10 U 125 U 125 U 125 U 125 U 125 U 125 U 125 U 125 U 125 Unr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U

212 107 142 17 146 36 316 24 357 31 26 249 26 262 22 113 1462 1160 1169 332 198 1525 4050 4775 1499 624 526 539 575 673 nr U nr U nr U nr U nr U nr U 0179 U 019 U 0454 0194 U 0333 019 U 0191 U 0209 U 0236 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

1 11 1

mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKgNot ReportedNot Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported

Not Reported Not Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot Reported Not Reported

Page 9 of 30

AR103742

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U

025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 Unr U nr U nr U nr U nr U nr U nr U nr U nr U

44 6 6 4 2 02 2594 8478 E 681 E 166 J 132 025 U 025 U 07 025 U025 U 025 U 025 U 64 J 025 U 025 U 025 U 025 U 025 U

44 6 6 4 2 02 2594 8478 681 23 132 07

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKgNot ReportedNot Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot Reported Not Reported

Not Reported Not Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot Reported Not ReportedEPA 8081EPA 8081 EPA 8081 EPA 8081 EPA 8081 EPA 8081 EPA 8081EPA 8081 EPA 8081

Page 10 of 30

AR103743

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0007 JB 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0004 J 0003 J nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0002 J 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0004 J 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg10 13 21 2015 1752 82

1 11 1 1 1 1 1EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260

nono no no no no no no nono no no no no noyes yesyes yes yes yesyes yes yes yesyes yesyes yes yes

no no nono no no no no no no nono nono nono no no no no noMetals only Metals only yes yesyes yes yesyes yes

noyes yes yes no no no no noyes yes yes yes yes yesno noyes yes no noyes yes no noyes yesyes yes yes

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Page 11 of 30

AR103744

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl Chloride m+p-Xyleneso-XyleneXylenes (Total)

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0024 J nr nr nr nr nr nr nr nr

0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0006 JB 00056 U 00057 U 0002 JB 0009 JB 0002 JB 0003 JB 0002 JB 0002 JB nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0002 J 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0001 J 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg21 2013 52 82 1715 101 11 1 11 1 1

EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260

Page 12 of 30

AR103745

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag01 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0097 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr0069 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr021 J 183 U 19 U 0098 J 18 U 04 U 04 U 0049 J 041 U nr nr nr nr nr nr048 U nr nr nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr

0066 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 183 U 19 U 057 J 038 J 014 J 015 J 019 J 019 J nr nr nr nr nr nr14 183 U 19 U 059 J 041 J 015 J 016 J 024 J 017 J nr nr nr nr nr nr15 183 U 19 U 1 064 J 015 J 017 J 023 J 018 J nr nr nr nr nr nr14 183 U 19 U 018 J 18 U 0053 J 026 J 033 J 041 U nr nr nr nr nr nr13 183 U 19 U 056 J 048 J 013 J 012 J 016 J 018 J nr nr nr nr nr nr18 183 U 19 U 069 U 18 U 04 U 012 J 025 J 069 nr nr nr nr nr nr

0056 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr012 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr

048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr15 183 U 19 U 081 057 J 015 J 018 J 021 J 02 J nr nr nr nr nr nr041 J 183 U 19 U 012 J 18 U 04 U 04 U 0057 J 041 U nr nr nr nr nr nr013 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr

048 U 376 U 379 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0033 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0048 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr034 J 183 U 19 U 069 U 18 U 04 U 04 U 01 J 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0052 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr083 183 U 19 U 079 038 J 011 J 025 J 016 J 023 J nr nr nr nr nr nr18 183 U 19 U 088 045 J 025 J 026 J 04 J 028 J nr nr nr nr nr nr

0098 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 183 U 19 U 038 J 028 J 0089 J 02 J 024 J 0091 J nr nr nr nr nr nr

0078 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr025 J 183 U 19 U 069 U 18 U 04 U 04 U 0052 J 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nrnr nr nr nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr02 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr095 183 U 19 U 028 J 18 U 013 J 014 J 021 J 011 J nr nr nr nr nr nr014 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr21 183 U 19 U 11 052 J 026 J 031 J 05 039 J nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

mgKg mgKg mgKg mgKg mgKgmgKgmgKg mgKg mgKg82 1731 10 17 21 205213

1 1 1 1 1 15 5EPA 8070 EPA 8070 EPA 8070EPA 8070EPA 8270 EPA 8270 EPA 8070 EPA 8070

Page 13 of 30

AR103746

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag10800 nr nr 9300 9400 7200 20000 8200 9800 nr nr nr nr nr nr

253 J 45 U 47 U 34 60 U 10 U 21 10 U 10 U nr nr nr nr nr nr301 82 127 56 20 73 65 72 82 nr nr nr nr nr nr462 nr nr 160 120 70 240 90 104 nr nr nr nr nr nr043 J 045 U 047 U 093 15 15 26 16 093 nr nr nr nr nr nr138 063 084 27 36 13 2 19 15 nr nr nr nr nr nr

24900 nr nr 9500 6100 4900 56000 32000 12000 nr nr nr nr nr nr227 J 49 72 120 110 48 40 34 52 nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

265 nr nr 82 14 44 47 48 44 nr nr nr nr nr nr1510 J 45 79 290 150 71 31 120 61 nr nr nr nr nr nr

171000 nr nr 47000 22000 20000 15000 25000 20000 nr nr nr nr nr nr4520 76 181 340 150 120 730 160 130 nr nr nr nr nr nr5640 J nr nr 5800 5100 1600 17000 6300 3500 nr nr nr nr nr nr2330 nr nr 840 1600 270 1200 440 420 nr nr nr nr nr nr

54 021 U 021 U 015 U 21 03 017 051 12 nr nr nr nr nr nr196 J 42 5 51 72 23 27 65 39 nr nr nr nr nr nr466 J nr nr 960 2800 U 880 2100 940 1000 nr nr nr nr nr nr95 45 U 47 U 22 53 15 094 067 17 nr nr nr nr nr nr24 09 U 093 U 67 6 U 1 U 19 1 U 1 U nr nr nr nr nr nr574 J nr nr 2200 9400 79 530 140 180 nr nr nr nr nr nr

2 U 021 U 018 U 094 34 04 U 043 U 044 U 091 nr nr nr nr nr nrnr U nr nr nr nr nr nr nr nr nr nr nr nr nr nr

435 nr nr 29 39 22 35 53 30 nr nr nr nr nr nr5300 117 267 690 380 220 230 220 280 nr nr nr nr nr nr

36 nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKgmgKgNot Reported 45 82 18 14 21 1810 14

Not Reported Not ReportedNot Reported Not Reported Not Reported Not ReportedNot ReportedVarious Various Various Various Various VariousVarious Various

Page 14 of 30

AR103747

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag039 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr

0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 0022 P 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr

nr nr nr nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 023 PD 019 P 0004 U 0047 P 027 D 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0018 J 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr011 J 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr

0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0095 P 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr016 J 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr

0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0066 J 0037 U 0038 U 018 U 0094 U 002 U 002 U 0022 U 0021 U nr nr nr nr nr nr

25 U 0074 U 0077 U 18 U 094 U 02 U 02 U 022 U 021 U nr nr nr nr nr nr048 U 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 7 U 7 U 350 U 25 D097 U 0037 U 0038 U 07 U 037 U 0081 U 0081 U 0085 U 0084 U 350 U 180 U 14 U 14 U 700 U 35 U048 U 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 7 U 7 U 350 U 18 U048 U 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 7 U 7 U 350 U 18 U63 J 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 71 U 7 U 350 U 18 U32 J 0074 U 0077 U 19 D 018 U 48 D 004 U 0042 U 62 D 4600 D 1300 DB 105 D 97 DB 4600 DB 76 DB64 J 0074 U 0077 U 068 PD 018 U 004 U 014 085 0041 U 175 U 88 U 7 U 7 U 350 U 18 U

447 258 48 014 085 62 4600 1300 105 97 4600 76

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg mgKg mgKg mgKg5 5 5 510 13 52 8231 21 20 5 517 17

1 and 5 1 and 10 5000 2500 200 200 10000 501 1 5 1 1 and 5 1 10 and 100EPA 80818082 EPA 80818082 8082 8082 8082 8082 8082 8082EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082EPA 80818082 EPA 80818082

Page 15 of 30

AR103748

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

G-0 0-2

012304

Sauer Dump Sauer DumpH-16 0-2

ENSAT012204

F-0 0-2Sauer Dump Sauer Dump

I-16 0-2

012704 012704ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid

Dup Of G-11 (0-2)Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial SoilENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT

061102 061102060702 061002 061102 061102 061102 061102060602 060602 0607022061027 2061033 2061018 20610202061017 2061036 2061012 2061019 2061021 2061034 2061022

D-4 (0-2) E-8II (0-2) H-10 (0-2) H-8 (0-2)F-7 (0-2) G-6 (0-2)G-11 (0-2) S-3 I-8 (0-2)F-1 (0-2) J-11 (0-2)Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr 2200 1200 1500 1900nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr

mgkgmgkg mgkgmgkg

EPA 7420 EPA 7420 EPA 7420EPA 7420

Page 19 of 30

AR103749

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

G-0 0-2

012304

Sauer Dump Sauer DumpH-16 0-2

ENSAT012204

F-0 0-2Sauer Dump Sauer Dump

I-16 0-2

012704 012704ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid

Dup Of G-11 (0-2)Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial SoilENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT

061102 061102060702 061002 061102 061102 061102 061102060602 060602 0607022061027 2061033 2061018 20610202061017 2061036 2061012 2061019 2061021 2061034 2061022

D-4 (0-2) E-8II (0-2) H-10 (0-2) H-8 (0-2)F-7 (0-2) G-6 (0-2)G-11 (0-2) S-3 I-8 (0-2)F-1 (0-2) J-11 (0-2)Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr51 D 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U18 U 280 U 18 U 18 U 35 U 70 U 70 U 14 U 70 U 350 U 70 U088 U 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U088 U 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U088 U 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U24 DB 1400 DB 32 D 35 DB 330 D 420 D 410 D 97 D 390 D 3800 DB 580 D088 U 140 U 27 D 51 18 U 35 U 35 U 7 U 35 U 180 U 35 U75 1400 59 86 330 420 410 97 390 3800 580

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKg6 5 5 5 5 5 55 55 5

25 4000 1000 500025 25 500 1000 1000 200 100080828082 8082 8082 8082 8082 8082 8082 80828082 8082

Page 20 of 30

AR103750

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpS3 (2004) G-075 0-2

Sauer Dump Sauer DumpK-15 0-2 K-16 0-2Z-05 0-2 I5-145 0-2 K-12 0-2

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

K-16 0-2 dup K-15 0-2 dupS1 (2004) S2 (2004)K-13 0-2 K-14 0-2

K-14 0-2 dup I5-70 0-2I5-07 0-2 J-115 0-2 K-08 0-2 K-09 0-2

J0 115 0-2

012704 012804 012804 012804 012804012804 012804 012804 012804 012904 012904012804 012904 012904 012904ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid

Duplicate Duplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nr

10000 5600 1900 3800 3200 3400 3600nr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkg mgkg mgkg mgkgmgkg mgkgmgkg

EPA 7420 EPA 7420 EPA 7420 EPA 7420EPA 7420 EPA 7420EPA 7420

Page 24 of 30

AR103751

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpS3 (2004) G-075 0-2

Sauer Dump Sauer DumpK-15 0-2 K-16 0-2Z-05 0-2 I5-145 0-2 K-12 0-2

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

K-16 0-2 dup K-15 0-2 dupS1 (2004) S2 (2004)K-13 0-2 K-14 0-2

K-14 0-2 dup I5-70 0-2I5-07 0-2 J-115 0-2 K-08 0-2 K-09 0-2

J0 115 0-2

012704 012804 012804 012804 012804012804 012804 012804 012804 012904 012904012804 012904 012904 012904ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid

Duplicate Duplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U85 U 84 U 39 U 83 U 82 U 85 U 76 U 80 U 12 U 31 U 170 U 120 U42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U60 620 270 580 500 490 540 470 92 210 970 43084 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U

684 620 270 580 500 490 540 470 92 210 970 430

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkgmgkg mgkg mgkg21 12 16 15 1419 2321 20 13 19 18

25 2000100 1000 500 1000 1 1001000 1000 1000 1000EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082

Page 25 of 30

AR103752

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer DumpSauer Dump Sauer DumpS4 (2004)

Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpS6 (2004)K-11 0-2 K-11 0-2 G-065 0-2 TP 3B lt1D5-07 0-2 F5-07 0-2K-10 0-2 K-10 0-2

J-115 0-2 dup G-075 0-2 dup

012904 012904 013004 013004 013004 020204012904 012904 012904 012904ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid SolidSolid Solid Solid Solid Solid SolidSolid Solid

DuplicateDuplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr 6600nr nr nr nr 28 Unr nr nr nr 12nr nr nr nr 99nr nr nr nr 28 Unr nr nr nr 53nr nr nr nr 55000nr nr nr nr 74nr nr nr nr nrnr nr nr nr nrnr nr nr nr 68nr nr nr nr 420nr nr nr nr 53000

1600 1600 540 540 400nr nr nr nr 6900nr nr nr nr 410nr nr nr nr 064nr nr nr nr 51nr nr nr nr 570 Unr nr nr nr 68nr nr nr nr 28 Unr nr nr nr 570 Unr nr nr nr 23 Unr nr nr nr nrnr nr nr nr 25nr nr nr nr 1500nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkgmgkg mgkg mgkg mgkg

EPA 7420 EPA 7420 EPA 6020EPA 7420 EPA 7420

Page 29 of 30

AR103753

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer DumpS4 (2004)

Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpS6 (2004)K-11 0-2 K-11 0-2 G-065 0-2 TP 3B lt1D5-07 0-2 F5-07 0-2K-10 0-2 K-10 0-2

J-115 0-2 dup G-075 0-2 dup

012904 012904 013004 013004 013004 020204012904 012904 012904 012904ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid SolidSolid Solid Solid Solid Solid SolidSolid Solid

DuplicateDuplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U62 U 17 U 180 U 81 U 13 U 24 U 25 U 057 U31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U270 150 1500 64 64 160 180 1231 U 84 U 88 U 4 14 12 U 12 U 057 U

270 150 1500 68 78 160 180 12

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg25 17 2019 23 1621

2000 100 2050 200 10 20EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082

Page 30 of 30

AR103754

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SolidSurface Soil

Malcolm Pirnie010807

C7A110281001DG-SS01-0

Sauer DumpL-09 0-2

Sauer Dump Sauer DumpL-07 0-2 L-08 0-2

L-9 0-2 L-09 0-2 dup

Sauer DumpY-055 0-2

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpK-17 0-2 L-10 0-2 L-11 0-2

Sauer Dump Sauer Dump Sauer Dump

020205ENSAT

Sauer Dump Sauer DumpL-12 0-2 L-13 0-2 L-14 0-2 L-15 0-2

Sauer Dump Sauer DumpL-17 0-2

Surficial SoilSolid

M-08 0-2S-5-2005L-16 0-2

020705 020705 020705 020705020405 020705 020705 020705 020705 020805 020805 020905 020905ENSAT ENSAT

030905ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilENSAT ENSATENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid

Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid

Duplicate

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result FlagAluminum nrAntimony nrArsenic nrBarium nrBeryllium nrCadmium nrCalcium nrChromium nrChromium III nrChromium VI nrCobalt nrCopper nrIron nrLead 732Magnesium nrManganese nrMercury nrNickel nrPotassium nrSelenium nrSilver nrSodium nrThallium nrTin nrVanadium nrZinc nrCyanide nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

mgkgnot reported

1SW846 6010B

Page 4 of 15

AR103755

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SolidSurface Soil

Malcolm Pirnie010807

C7A110281001DG-SS01-0

Sauer DumpL-09 0-2

Sauer Dump Sauer DumpL-07 0-2 L-08 0-2

L-9 0-2 L-09 0-2 dup

Sauer DumpY-055 0-2

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpK-17 0-2 L-10 0-2 L-11 0-2

Sauer Dump Sauer Dump Sauer Dump

020205ENSAT

Sauer Dump Sauer DumpL-12 0-2 L-13 0-2 L-14 0-2 L-15 0-2

Sauer Dump Sauer DumpL-17 0-2

Surficial SoilSolid

M-08 0-2S-5-2005L-16 0-2

020705 020705 020705 020705020405 020705 020705 020705 020705 020805 020805 020905 020905ENSAT ENSAT

030905ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilENSAT ENSATENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid

Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid

Duplicate

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrbeta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrdelta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-BHC (Lindane) nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChlordane total nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDD nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDE nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDT nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDieldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan I nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan II nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan sulfate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin aldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin ketone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor epoxide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethoxychlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToxaphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAroclor-1016 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1221 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1232 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1242 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 05 038 013 U 57 U 041 U 0041 UAroclor-1248 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1254 23 29 1 U 12 U 064 U 20 084 13 37 18 U 096 049 036 88 041 U 1Aroclor-1260 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 04 031 029 21 041 U 062Total PCBs 23 29 ND ND ND 20 084 13 37 ND 186 118 065 109 ND 162

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

mgkgnot reported

1SW846 8082EPA 8082

mgkg18

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 80821 1 1

EPA 8082 EPA 8082100

EPA 8082 EPA 8082

18 77 80 62 86 6066 34 64 47mgkg mgkg mgkg mgkgmgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg

41 41mgkg mgkg

61 75

Page 5 of 15

AR103756

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid SolidSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie010807 010807 010807 010807 010807 010807 010807010807 010807 010807 010807 010807 010807 010807010807 010807

C7A110281009 C7A110281010 C7A130135004 C7A110281011 C7A130135005 C7A130135006 C7A130135007C7A130135001 C7A110281002 C7A110281003 C7A110281005 C7A110281006 C7A130135003 C7A110281007C7A130135002 C7A110281004DG-SS17-0DG-SS09-0 DG-SS10-0 DG-SS11-0 DG-SS12-0 DG-SS13-0 DG-SS14-0 DG-SS15-0 DG-SS16-0DG-SS05-0 DG-SS06-0 DG-SS07-0 DG-SS08-0DG-SS02-0 DG-SS03-0 DG-SS04-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

260 J 661 321 269 J 295 153 269 116 J 699 556 106 647 J 558 170 J 440 J 198 Jnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkgnot reported not reported not reported not reported not reported not reported not reportednot reported not reported not reported not reported not reported not reported not reportednot reported not reported

1 1 11 1 1 1 1 1 1 11 1 1 1 5SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B

Page 9 of 15

AR103757

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid SolidSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie010807 010807 010807 010807 010807 010807 010807010807 010807 010807 010807 010807 010807 010807010807 010807

C7A110281009 C7A110281010 C7A130135004 C7A110281011 C7A130135005 C7A130135006 C7A130135007C7A130135001 C7A110281002 C7A110281003 C7A110281005 C7A110281006 C7A130135003 C7A110281007C7A130135002 C7A110281004DG-SS17-0DG-SS09-0 DG-SS10-0 DG-SS11-0 DG-SS12-0 DG-SS13-0 DG-SS14-0 DG-SS15-0 DG-SS16-0DG-SS05-0 DG-SS06-0 DG-SS07-0 DG-SS08-0DG-SS02-0 DG-SS03-0 DG-SS04-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 0097 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U059 77 14 0043 U 062 072 065 0052 U 0012 J 00068 J 012 0045 U 0084 0046 U 14 0055 U074 041 U 072 12 038 036 037 028 0019 J 00083 J 022 0085 0054 042 26 049133 77 212 12 1 108 1117 028 0031 00151 034 0085 0138 042 40 049

mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkgnot reported not reported not reportednot reported not reported not reported not reported not reported not reported not reported not reportednot reported not reported not reported not reported not reported

1 1 1 1 1 3 11 10 1 1 1 1 11 1SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

Page 10 of 15

AR103758

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid SolidSolid SolidSolid Solid Solid SolidSolid Solid SolidSolid SolidSolid SolidSurface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie010807 010807 010807 010807010807 010807010807 010807 010807 010807 010807 010807 010807 010807010807

C7A240133004 C7A240133006 C7A250145001 C7A250145002C7A240133007 C7A240133008C7A130135010 C7A130135011 C7A130135012 C7A130135013 C7A130135014 C7A240133001 C7A240133002 C7A240133003C7A130135008DG-SS27-0 DG-SS28-0DG-SS21-0 DG-SS22-0 DG-SS23-0 DG-SS24-0 DG-SS25-0 DG-SS26-0DG-SS18-0 DG-SS29-0 DG-SS30-0 DG-SS31-0 DG-SS32-0DG-SS19-0 DG-SS20-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

363 J 114 J 130 J 324 J 140 J 205 J 2720 415 188 586 242 281 221 137 804nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkgmgkg mgkgnot reported not reportednot reported not reported not reported not reported not reported not reported not reported not reportednot reported not reportednot reported not reportednot reported

1 11 11 1 1 51 1 11 11 1SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B

Page 14 of 15

AR103759

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid SolidSolid SolidSolid Solid Solid SolidSolid Solid SolidSolid SolidSolid SolidSurface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie010807 010807 010807 010807010807 010807010807 010807 010807 010807 010807 010807 010807 010807010807

C7A240133004 C7A240133006 C7A250145001 C7A250145002C7A240133007 C7A240133008C7A130135010 C7A130135011 C7A130135012 C7A130135013 C7A130135014 C7A240133001 C7A240133002 C7A240133003C7A130135008DG-SS27-0 DG-SS28-0DG-SS21-0 DG-SS22-0 DG-SS23-0 DG-SS24-0 DG-SS25-0 DG-SS26-0DG-SS18-0 DG-SS29-0 DG-SS30-0 DG-SS31-0 DG-SS32-0DG-SS19-0 DG-SS20-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U091 0037 U 0043 U 0056 U 0059 U 0051 J 48 0091 0052 U 0037 U 014 0046 U 0041 U 0042 U 0044 U15 0041 0036 J 026 014 012 48 U 0058 U 0052 U 0037 UJ 0038 U 0015 J 0041 U 0028 J 0037 J

241 0041 0036 026 014 0171 48 0091 0052 0037 014 0015 0041 0028 0037

mgkg mgkgmgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkgmgkgnot reported not reportednot reported not reportednot reported not reported not reported not reportednot reported not reported not reportednot reported not reportednot reported not reported

1 1 1 11 11 1 1 1 1 100 1 11SW846 8082 SW846 8082SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082SW846 8082 SW846 8082

Page 15 of 15

AR103760

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0012 B 0045 B 05006 U 0341 U 0058 0048 0025 0019 U 0013 U 0054 017 006 0033 0024Acetonitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0002 J 0014 U 0006 J 0003 JBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr 082 J nrBenzyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromobenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UBromoform 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UBromomethaneMethyl bromide 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 02228 01452 0014 U 0012 U 0007 J 0019 U 0013 U 0014 0066 0021 0011 J 0006 Jn-Butylbenzene nr nr 01001 U 00682 U 0012 00061 U nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr 0065 J nr nr nrCarbon Disulfide 0005 U 0005 U nr nr 00032 J 00061 U 0014 U 0019 U 0013 U 0002 J 0031 0004 J 0009 J 0013 UCarbon Tetrachloride 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChlorobenzene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChloroethaneEthyl chloride 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0001 J 0019 U 0014 U 0013 U 0013 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 01001 U 00682 U nr nr nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChloromethaneMethyl chloride 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChloroprene nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr 0002 J 0019 U 0013 U 0002 J 0019 U 0014 U 0013 U 0013 UCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr 12 J nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr 0085 J nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dibromoethane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U13-Dichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U14-Dichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UDichlorodifluoromethane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U11-Dichloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dichloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U11-Dichloroethene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 Ucis-12-Dichloroethene nr nr nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0001 J 0019 U 0014 U 0013 U 0013 Utrans-12-Dichloroethene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dichloroethene (Total) nr nr nr nr nr nr nr nr nr nr nr nr nr nrDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U13-Dichloropropane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr22-Dichloropropane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 Utrans-13-Dichloropropene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr 0069 J nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr 0099 J nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr 0048 J nr 037 J nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr nr

1123104

EPA 8260 EPA 8260

Subsurface SoilENSAT121201

82073 000006

yesyesyes

Solid

nonoyesno

yesyesnoyes

ENSATSubsurface Soil

Solid

yes

1123105

82073 000007

121201

noyesyesyes

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

mgKg133

1not reported

noyes

noyes

noyesyesyes

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

mgKg163

1not reported

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

yesyesyesnoyesno

EPA 8260Not Reported

NAmgKg

Holding time exceeded

MDE

noyesyesyes

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Holding time exceededmgKg

Not ReportedEPA 8260

noyes

Subsurface Soil

yesyesyesyes

yesyes

SolidSubsurface Soil

noyesnono

yesno

ENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12

yesnonononono

EPA 82601

18mgKgmgKg

291

EPA 8260

nononononoyes

Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

EPA 82601

51mgKgmgKg

291

EPA 8260

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolid

yesyesyesnoyesno

EPA 82601

22mgKgmgKg

441

EPA 8260

noyesnoyesyesyes

SolidSubsurface Soil

ENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolid

yesyesyes

yesno

no

EPA 82601 and 17

19mgKgmgKg

191

EPA 8260

noyesnoyesyesyes

SolidSubsurface Soil

ENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

123

mgKg mgKg191

Page 1 of 40

AR103761

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr 0019 J nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0009 J 0019 U 0013 U 0012 U 0019 U 0014 U 0027 0013 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr 15 J nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr 0008 J nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr 11 J nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr 0027 J nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr 0032 J nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr 001 J nr nr nr nr nr nr2-Hexanone 001 U 001 U nr nr 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nr nr nr nr nr nrIsopropylbenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 035 D 0049 0014 U 0013 U 0013 Up-Isopropyl Toluene nr nr 01001 U 00682 U 0005 J 00061 U nr nr nr nr nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UMethylcyclohexane nr nr nr nr nr nr 0002 J 0019 U 0013 U 0006 J 0006 J 0014 U 0004 J 0013 U1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr 0008 J nr nr 054 J nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr 0014 J nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr 11 J 0007 JMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 0005 U 00061 B 0103 00682 U 0007 U 00061 U 0003 JB 0002 JB 0002 JB 0003 JB 0006 JB 0004 JB 0005 JB 0002 JB1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr 045 J nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr 0033 J nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr 038 J nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0002 J 0015 J 0014 U 0013 U 0013 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UNaphthalene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr 0008 JNaphthalene decahydro- trans- nr nr nr nr nr nr 0008 J nr nr 0008 J nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr 0007 J nr nr nr nrStyrene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0002 J 0019 U 0013 U 0012 U 0019 U 0014 U 0003 J 0013 U1112-Tetrachloroethane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UTetrachloroethene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0004 J 0001 J 0012 U 0019 U 0014 U 0013 U 0013 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr 0035 J nr nr nrToluene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0002 J 0019 U 0013 U 0012 U 0005 J 0014 U 0014 0013 U123-Trichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U111-Trichloroethane 0022 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U112-Trichloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UTrichloroethene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0002 J 0012 U 0019 U 0014 U 0013 U 0013 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UTrichlorofluoromethane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U123-Trichloropropane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr 0021 J nr nr nr 001 J123-Trimethylbenzene nr nr 01001 U 00682 U 00065 J 00061 U nr nr nr 0009 J nr nr nr nr135-Trimethylbenzene nr nr 01001 U 03444 0003 J 00061 U 0015 J nr nr nr nr nr 28 J nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U nr nr nr nr nr nr nr nr nr nr nr nrVinyl chloride 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U m+p-Xylenes nr nr nr nr 0007 U 00061 U nr nr nr nr nr nr nr nro-Xylene nr nr nr nr 0007 U 00061 U nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 02003 U 01364 U nr nr 0006 J 0019 U 0013 U 0012 U 0015 J 0014 U 0189 0013 U

not reported not reported EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 82601 1 Not Reported Not Reported 1 1 1 1 1 1 and 17 1 1 1 1

133 163 NA 29 18 29 51 19 19 44 22 23 19mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Holding time exceeded Holding time exceeded

Page 2 of 40

AR103762

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 22 U 22 U U U nr nr 035 J 018 J 013 J 041 U 059 U 042 U 043 U 041 UAcenaphthylene 22 U 22 U U U nr nr 021 J 067 U 041 U 041 U 059 U 042 U 043 U 041 UAcetophenone nr nr U U nr nr 018 J 067 U 041 U 0084 J 009 J 042 U 046 0073 JAnthracene 22 U 22 U 10519 J U nr nr 064 041 J 021 J 0082 J 059 U 042 U 043 U 006 JAtrazine nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzaldehyde nr nr U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UBenzo(a)Anthracene 22 U 22 U 7323 J U nr nr 34 15 099 032 J 061 0044 J 031 J 02 JBenzo(a)Pyrene 22 U 22 U 7246 J U nr nr 37 13 082 035 J 038 J 042 U 02 J 021 JBenzo(b)fluoranthene 12 J 22 U J U nr nr 33 17 091 031 J 053 J 0047 J 022 J 024 JBenzo(ghi)Perylene 22 U 22 U U U nr nr 23 13 083 041 U 059 U 042 U 012 J 024 JBenzo(k)fluoranthene 22 U 22 U U U nr nr 27 097 073 021 J 036 J 0051 J 023 J 014 JBenzylbutylphthalateButylbenzylphthalate 22 U 22 U U U nr nr 39 D 42 041 U 016 J 059 U 0082 J 043 U 041 U11-Biphenyl nr nr U U nr nr 0099 J 067 U 0058 J 041 U 059 U 042 U 043 U 014 J4-Bromophenyl-phenylether 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UCaprolactam nr nr U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UCarbazole nr nr U U nr nr 037 J 067 U 013 J 041 U 059 U 042 U 043 U 041 U4-Chloroaniline 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Chloroethoxy)Methane 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Chloroethyl)Ether 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Chloroisopropyl)Ether 22 U 22 U nr nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Chloronaphthalene 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Chlorophenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U4-Chlorophenyl-phenylether 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UChrysene 22 U 22 U U U nr nr 41 DJ 16 11 042 064 0056 J 036 J 022 JDibenzo(ah)Anthracene 22 U 22 U U U nr nr 15 038 J 025 J 016 J 059 U 042 U 043 U 041 UDibenzofuran 22 U 22 U U U nr nr 022 J 013 J 017 J 041 U 059 U 042 U 043 U 007 J12-Dichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr33-Dichlorobenzidine 46 U 46 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U24-Dichlorophenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UDiethylphthalate 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U24-Dimethylphenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UDimethyl Phthalate 22 U 22 U U U nr nr 046 U 067 U 056 041 U 059 U 042 U 043 U 22Di-n-Butylphthalate 96 17 JB U U nr nr 067 067 U 026 J 0074 J 0081 J 042 U 0064 J 015 J46-Dinitro-2-Methylphenol 112 U 114 U U U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U24-Dinitrophenol 112 U 114 U U U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U24-Dinitrotoluene 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U26-Dinitrotoluene 22 U 22 U J J nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UDi-n-Octyl Phthalate 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Ethylhexyl)Phthalate 22 U 22 U J U nr nr 20 D 35 19 043 45 042 U 1 069Fluoranthene 22 U 22 U 13183 J U nr nr 64 D 25 15 044 079 0063 J 062 029 JFluorene 22 U 22 U J U nr nr 043 J 017 J 015 J 041 U 059 U 042 U 082 0062 JHexachlorobenzene 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UHexachlorobutadiene 22 U 22 U J nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UHexachlorocyclopentadiene 22 U 22 U J nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UHexachloroethane 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UIndeno(123-cd)Pyrene 22 U 22 U J U nr nr 4 DJ 16 09 04 J 03 J 042 U 015 J 025 JIsophorone 22 U 22 U J U nr nr 011 J 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Methylnaphthalene 22 U 22 U J U nr nr 033 J 02 J 02 J 017 J 013 J 042 U 22 172-Methylphenol 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 013 J4-Methylphenol 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 01 J 042 U 043 U 023 JMethylMercury nr nr J U nr nr nr nr nr nr nr nr nr nrNaphthalene 22 U 22 U J U nr nr 028 J 018 J 024 J 012 J 013 J 042 U 032 J 112-Nitroaniline 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U3-Nitroaniline 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U4-Nitroaniline 112 U 114 U J nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 UNitrobenzene 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Nitrophenol 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U4-Nitrophenol 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 UN-Nitroso-Di-n-Propylamine 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UN-Nitrosodiphenylamine 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U22-Oxybis(1-Chloropropane) nr nr J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UPentachlorophenol 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 UPhenanthrene 22 U 22 U 10215 J U nr nr 49 D 17 099 034 J 063 042 U 21 038 JPhenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 05Pyrene 091 J 076 J nr nr 93 D 27 21 062 1 0069 J 18 04 J124-Trichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr245-Trichlorophenol 112 U 114 U U J nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U246-Trichlorophenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U

Incomplete lab report No SVOCs detected

Incomplete lab report No other SVOCs detected

mgKgmgKgmgKgmgKg29

1 amp 105Not reported

mgKg mgKgNot Reported

EPA 625EPA 625

Not ReportedmgKgmgKg

Not Reported5 1

19191

EPA 8070EPA 80701

51

EPA 8070 EPA 80701

22

EPA 8070EPA 8070

mgKgmgKg441

EPA 80701

19mgKgmgKg

231

EPA 8070

Page 3 of 40

AR103763

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 9850 14030 15719 8105 nr nr 16000 49000 12000 9900 17000 9900 8500 2300Antimony 29 U 29 U 711 944 nr nr 90 63 10 U 12 U 80 U 22 48 10 UArsenic 255 J 113 J 3574 11788 nr nr 43 300 16 65 11 62 25 5 UBarium 217 221 234 738 nr nr 800 800 190 580 140 82 100 26Beryllium 3 U 3 U 25 U 25 U nr nr 14 1 14 14 16 058 073 039Cadmium 379 301 228 215 nr nr 14 19 44 14 28 12 16 05 UCalcium 63550 86300 32542 26434 nr nr 28000 25000 22000 21000 190000 5100 37000 2000Chromium 266 251 3803 215 nr nr 450 1300 66 650 67 27 120 33Chromium III nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 28 U 26 U 497 123 nr nr 30 21 7 18 8 46 13 12Copper 364 160 2894 1300 nr nr 3300 3200 350 280 150 390 190 19Iron 25480 15660 84124 58149 nr nr 140000 95000 36000 36000 30000 14000 84000 9100Lead 508 J 222 J 831 2283 nr nr 3000 4100 420 940 430 210 110 40Magnesium 11910 19410 17207 5350 nr nr 9700 8100 7100 8100 83000 2200 5200 840Manganese 699 J 596 J 4898 609 nr nr 2500 1500 620 380 520 160 8900 150Mercury 032 016 117 183 nr nr 14 22 01 U 009 U 018 U 01 U 021 018Nickel 22 U 20 U 7229 237 nr nr 230 510 49 25 U 37 44 160 16Potassium 1630 J 1600 J 818 809 nr nr 570 U 700 880 6200 U 4100 U 700 2100 500 USelenium 3 U 3 U 364 125 U nr nr 22 57 75 3 05 U 13 46 05 USilver 6 U 5 U 25 U 25 U nr nr 1 U 27 1 U 12 U 8 U 1 U 1 U 1 USodium 2800 U 2660 2028 3585 nr nr 610 410 160 625 U 400 U 190 840 160Thallium 5 U 5 U 125 U 125 U nr nr 094 17 056 U 058 U 065 U 095 29 04 UTin 22 U 20 U nr nr nr nr nr nr nr nr nr nr nr nrVanadium 28 U 26 U 91 236 nr nr 55 980 30 46 46 18 1 U 28Zinc 545 458 1584 1922 nr nr 6400 5400 1000 110000 540 880 370 58Cyanide 12 U 13 U 0187 U 0127 U nr nr nr nr nr nr nr nr nr nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Not ReportedNot Reported

mgKgmgKgNot ReportedNot ReportedNot Reported

194mgKgmgKg

172Not Reported

VariousNot Reported

23mgKgmgKg

54Not Reported

VariousVariousNot Reported

20mgKgmgKg

20Not Reported

VariousVariousNot Reported

37mgKgmgKg

31Not Reported

Various VariousNot Reported

20mgKgmgKg

25Not Reported

Various

Page 4 of 40

AR103764

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ualpha-BHC 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ubeta-BHC 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Udelta-BHC 0038 U 0039 U 05 U 05 U 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ugamma-BHC (Lindane) 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ualpha-Chlordane nr nr nr nr nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ugamma-Chlordane nr nr nr nr nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UChlordane total 038 U 039 U 025 U 025 U nr nr nr nr nr nr nr nr nr nr44-DDD 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 U44-DDE 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 U44-DDT 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 096 PD 00042 U 00041 UDieldrin 0076 U 0085 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndosulfan I 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UEndosulfan II 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndosulfan sulfate 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndrin 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndrin aldehyde 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndrin ketone 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UHeptachlor 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UHeptachlor epoxide 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UMethoxychlor 0076 U 0078 U 05 U 05 U nr nr 024 U 0035 U 42 U 0021 U 003 U 011 U 0022 U 0021 UToxaphene 076 U 078 U 25 U 25 U nr nr 24 U 035 U 42 U 021 U 03 U 11 U 022 U 021 UAroclor-1016 038 U 039 U 025 U 025 U nr nr 046 U 0067 U 81 U 0041 U 0059 U 021 U 0042 U 0041 UAroclor-1221 038 U 039 U 025 U 025 U nr nr 094 U 014 U 17 U 0083 U 012 U 043 U 0086 U 0083 UAroclor-1232 038 U 039 U 025 U 025 U nr nr 046 U 0067 U 81 U 0041 U 0059 U 021 U 0042 U 0041 UAroclor-1242 038 U 039 U 025 U 025 U nr nr 046 U 0067 U 81 U 0041 U 0059 U 021 U 88 D 0041 UAroclor-1248 038 U 039 U nr nr nr nr 046 U 0067 U 81 U 31 PD 21 PD 17 PD 91 D 13 DAroclor-1254 1452 2056 177 J 79 nr nr 72 D 84 D 800 D 56 PD 37 D 021 U 0042 U 1 PAroclor-1260 076 U 078 U 1113 J 025 U nr nr 43 D 0067 U 81 U 0041 U 0059 U 26 PD 0042 U 0041 UTotal PCBs 1452 2056 2883 79 115 84 800 87 58 43 179 23

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 8081Not ReportedNot Reported

mgKgmgKgNot ReportedNot Reported

EPA 808110

Not ReportedmgKgmgKg

Not Reported10

EPA 808180825 and 40

22mgKgmgKg

441 and 5

EPA 808180821 and 40

19mgKg

EPA 80818082

mgKg19

200 and 600EPA 80818082EPA 80818082

1 and 4051

mgKgmgKg29

10 and 100EPA 80818082 EPA 80818082

1 and 219

mgKgmgKg22

1 and 20EPA 80818082

Page 5 of 40

AR103765

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0028 0086 0021 0015 U 0048 0015 0022 J nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 J 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0007 J 0025 J 0014 U 0015 U 0013 J 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0004 J 0017 J 0014 U 0015 U 0024 J 0015 U 0018 J nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr 012 nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0002 J 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr0011 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr0018 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 8260

yesyes

yesnoyesno

yesno

EPA 8260

1123107

Subsurface SoilENSAT121201

82073 000009

yesyes

Dup Of TP-7Solid

noyesnoyes

yesyes

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump

118

mgKg mgKg691

Sauer DumpMW-3 (135-15)

122001ENSAT

yesno

EPA 82601

32mgKgmgKg

591

EPA 8260

noyesnoyesyesyes

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolid

yesyesyesnoyesno

EPA 82601

35mgKgmgKg

301

EPA 8260

noyesnoyesyesyes

SolidSubsurface Soil

ENSAT121901

MW-4 (11-12)Sauer Dump

mgKg621

EPA 8260

Sauer DumpI-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnononono

SolidSubsurface Soil

ENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnoyesyesyes

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnononono

SolidSubsurface Soil

ENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnono

nono

SolidSubsurface Soil

ENSAT0606022061009

noyesnononono

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Page 6 of 40

AR103766

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0002 J 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0005 J 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0006 J 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0003 JB 0032 U 0014 U 0068 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0007 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr 011 nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0001 J 0032 U 0014 U 0015 U 0001 J 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0013 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0003 J 0014 U 0015 U 0006 J 0015 U 0026 U nr nr nr nr nr nr nr nr

EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 82601 1 1 1 1 1 1

18 69 30 35 59 32 62mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Page 7 of 40

AR103767

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag04 U 017 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0042 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 013 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0095 J 11 U 047 U 019 J 015 J 049 U 087 U nr nr nr nr nr nr nr nr0065 J 11 U 047 U 017 J 011 J 049 U 087 U nr nr nr nr nr nr nr nr0089 J 11 U 047 U 02 J 014 J 049 U 087 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr0067 J 11 U 047 U 015 J 011 J 049 U 087 U nr nr nr nr nr nr nr nr0057 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr0096 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr01 J 11 U 047 U 023 J 019 J 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0053 J 015 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0066 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr22 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr007 J 11 U 047 U 012 JB 097 U 01 JB 043 JB nr nr nr nr nr nr nr nr

1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr046 036 JB 0058 JB 13 B 16 B 025 JB 29 B nr nr nr nr nr nr nr nr019 J 032 J 047 U 039 J 032 J 049 U 087 U nr nr nr nr nr nr nr nr

0051 J 016 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 011 J 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr12 043 J 047 U 022 J 097 U 049 U 087 U nr nr nr nr nr nr nr nr009 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr02 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr06 029 J 047 U 014 J 097 U 049 U 087 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

026 J 052 J 047 U 025 J 017 J 049 U 087 U nr nr nr nr nr nr nr nr027 J 11 U 047 U 12 097 U 049 U 087 U nr nr nr nr nr nr nr nr021 J 024 J 047 U 047 J 031 J 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

EPA 80701

58mgKgmgKg

301

EPA 8070EPA 80701

69mgKgmgKg

181

EPA 8070

mgKg581

EPA 8070EPA 80701

32mgKgmgKg

661

EPA 8070

Page 8 of 40

AR103768

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag2500 33000 24000 13000 28000 28000 40000 nr nr nr nr nr nr nr nr

10 U 30 U 10 U 10 U 20 U 10 U 20 U nr nr nr nr nr nr nr nr5 U 12 47 26 11 14 56 nr nr nr nr nr nr nr nr

40 81 34 32 120 79 91 nr nr nr nr nr nr nr nr035 21 1 15 31 12 38 nr nr nr nr nr nr nr nr06 024 006 U 01 16 0084 069 nr nr nr nr nr nr nr nr

2500 3300 240 410 21000 540 3100 nr nr nr nr nr nr nr nr27 40 30 14 160 36 53 nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr21 39 35 46 18 44 17 nr nr nr nr nr nr nr nr33 23 13 53 310 29 29 nr nr nr nr nr nr nr nr

11000 52000 17000 13000 38000 29000 40000 nr nr nr nr nr nr nr nr57 33 10 22 260 36 40 nr nr nr nr nr nr nr nr950 6400 1800 1500 7900 3000 8000 nr nr nr nr nr nr nr nr170 450 38 100 560 70 870 nr nr nr nr nr nr nr nr009 U 022 U 009 U 01 U 2 01 U 073 nr nr nr nr nr nr nr nr20 64 96 81 51 16 36 nr nr nr nr nr nr nr nr400 U 5800 1800 1400 3800 3100 7300 nr nr nr nr nr nr nr nr05 U 22 08 07 62 06 42 nr nr nr nr nr nr nr nr1 U 3 U 1 U 1 U 2 U 1 U 12 nr nr nr nr nr nr nr nr

160 3300 190 500 2800 710 2700 nr nr nr nr nr nr nr nr05 U 054 U 023 U 02 U 038 U 022 U 04 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr42 70 44 20 64 42 64 nr nr nr nr nr nr nr nr110 130 26 22 490 54 130 nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 2008Not Reported

22mgKgmgKg

17Not Reported

EPA 2008EPA 2008Not Reported

67mgKgmgKg

19Not Reported

Various

mgKg55

Not ReportedEPA 2008EPA 2008

Not Reported20

mgKgmgKg61

Not ReportedEPA 2008

Page 9 of 40

AR103769

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr0021 U 0055 U 0024 U 004 U 005 U 0025 U 0045 U nr nr nr nr nr nr nr nr021 U 055 U 024 U 04 U 05 U 025 U 045 U nr nr nr nr nr nr nr nr004 U 011 U 0047 U 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U

0082 U 022 U 0096 U 016 U 02 U 0099 U 018 U 07 U 140 U 35 U 35 U 28 U 35 U 56 U 7 U004 U 011 U 0047 U 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U004 U 011 U 019 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U08 011 U 0047 U 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U084 P 011 U 0047 U 0079 U 06 0049 U 011 12 D 1500 D 240 D 400 D 160 DB 13 D 320 DB 32 DB031 P 011 U 0047 U 032 P 045 P 0049 U 0087 U 24 D 70 U 18 U 18 U 14 U 59 D 28 U 91 D195 019 032 105 011 36 1500 240 400 160 189 320 411

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 808180821

58mgKgmgKg

301

EPA 80818082EPA 808180821

69mgKgmgKg

181

EPA 80818082 8082500

5mgKgmgKg

5200080828082

105

mgKgmgKg621

EPA 80818082EPA 808180821

32mgKgmgKg

661

EPA 80818082

mgKg5

10080828082

8005

mgKgmgKg5

5080828082

4005

mgKgmgKg5

5008082

Page 10 of 40

AR103770

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSATENSAT ENSAT ENSAT ENSAT012304 012304012204 012204 012304 012304

I-0 4-6 Z-06 2-4 Z-06 4-6 Z-06 6-8

012204

Sauer Dump Sauer Dump

Solid

Sauer Dump Sauer DumpF-0 2-4 H-0 2-4

Sauer Dump Sauer Dump

ENSATSubsurface Soil

Sauer DumpE5-07 6-8

Sauer DumpG-6 (4-5)

2061035061102ENSAT

Subsurface SoilSolidSolid

Sauer DumpE-8II (2-4)

Subsurface SoilENSAT06110220610152061023

061102ENSAT

Subsurface SoilSolid

Sauer DumpG-8 (2-4)G-7 (4-6)

Sauer DumpSauer DumpG-7 (2-4)F-7 (4-6)

Sauer Dump

2061026061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06110220610082061010

061102ENSAT

SolidSubsurface Soil

SolidSubsurface Soil

ENSAT0611022061007

G-6 (4-7)Sauer Dump

SolidSubsurface Soil

ENSAT0611022061032

I-7 (6-8)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr 1500 670 1600 960 23000 2400nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr

EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

Page 14 of 40

AR103771

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSATENSAT ENSAT ENSAT ENSAT012304 012304012204 012204 012304 012304

I-0 4-6 Z-06 2-4 Z-06 4-6 Z-06 6-8

012204

Sauer Dump Sauer Dump

Solid

Sauer Dump Sauer DumpF-0 2-4 H-0 2-4

Sauer Dump Sauer Dump

ENSATSubsurface Soil

Sauer DumpE5-07 6-8

Sauer DumpG-6 (4-5)

2061035061102ENSAT

Subsurface SoilSolidSolid

Sauer DumpE-8II (2-4)

Subsurface SoilENSAT06110220610152061023

061102ENSAT

Subsurface SoilSolid

Sauer DumpG-8 (2-4)G-7 (4-6)

Sauer DumpSauer DumpG-7 (2-4)F-7 (4-6)

Sauer Dump

2061026061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06110220610082061010

061102ENSAT

SolidSubsurface Soil

SolidSubsurface Soil

ENSAT0611022061007

G-6 (4-7)Sauer Dump

SolidSubsurface Soil

ENSAT0611022061032

I-7 (6-8)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr28 U 35 U 1800 U 180 U 18 U 7 U 14 U 2000 D 0039 U 8 U 20 U 78 U56 U 7 U 3500 U 350 U 35 U 14 U 28 U 280 U 008 U 16 U 40 U 16 U28 U 35 U 1800 U 180 U 18 U 7 U 14 U 140 U 0039 U 8 U 20 U 78 U28 U 35 U 1800 U 180 U 18 U 7 U 14 U 140 U 036 8 U 160 78 U28 U 35 U 1800 U 180 U 18 U 7 U 14 U 140 U 0039 U 8 U 20 U 78 U310 D 39 D 33000 DB 3900 D 370 D 100 D 190 DB 670 DB 067 110 110 11028 U 12 D 1800 U 180 U 18 U 7 U 14 U 140 U 035 8 U 20 U 78 U

310 51 33000 3900 370 100 190 2670 138 110 270 110

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

8082800

5mgKg

8082400

5mgKgmgKg

5200

80828082500

5mgKgmgKg

5500080828082

500005

mgKgmgKg5

1008082

mgkg18200

EPA 8082EPA 80821

16mgkgmgKg

540008082 EPA 8082

20015

mgkgmgkg17500

EPA 8082

Page 15 of 40

AR103772

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateDuplicate DuplicateSolidSolid Solid Solid Solid Solid SolidSolid SolidSolid Solid Solid Solid Solid Solid

Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804012304 012704 012704 012704 012804 012804012704 012704012704 012704 012704 012704 012704 012704

K-16 4-6 dup I5-145 2-4 dup K-12 2-4 dupBackground 000047 Background 000048 Background 000049I-16 4-6 I-16 6-8 Z-03 6-8 Z-03 8-10 Z-05 6-8 Z-07 6-8Z-04 8-10 Z-05 2-4Z-06 8-10 H-16 6-8 Z-07 8-10 Z-08 6-8

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

4000 740 700 1600 1200 2700 3200 1100 1900 3900 700 27000 4600 23000nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420 EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

Page 19 of 40

AR103773

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateDuplicate DuplicateSolidSolid Solid Solid Solid Solid SolidSolid SolidSolid Solid Solid Solid Solid Solid

Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804012304 012704 012704 012704 012804 012804012704 012704012704 012704 012704 012704 012704 012704

K-16 4-6 dup I5-145 2-4 dup K-12 2-4 dupBackground 000047 Background 000048 Background 000049I-16 4-6 I-16 6-8 Z-03 6-8 Z-03 8-10 Z-05 6-8 Z-07 6-8Z-04 8-10 Z-05 2-4Z-06 8-10 H-16 6-8 Z-07 8-10 Z-08 6-8

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flagnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nr

092 U 19 U 81 U19 U 39 U 17 U092 U 19 U 81 U092 U 19 U 81 U092 U 19 U 81 U93 19 87092 U 19 U 81 U93 19 87

mgkg2820

EPA 8082 EPA 808220019

mgkgmgkg1450

EPA 8082

Page 20 of 40

AR103774

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid Solid Solid Solid Solid SolidSolid Solid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804 012804 012804 012804 012804 012804012804 012804 012804012804 012804 012804 012804 012804 012804

K-15 2-4 K-15 4-6K-12 2-4 K-12 4-6 K-13 2-4 K-13 4-6 K-13 6-8 K-14 2-4 K-14 4-6 K-14 6-8I5-145 2-4 I5-145 4-6 J-16 2-4 J-16 4-6 J-16 6-8Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

7100 2600 25000 1600 2800 8600 2800 2100 900nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

mgkg

EPA 7420EPA 7420

mgkg mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420 EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkg

Page 24 of 40

AR103775

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid Solid Solid Solid Solid SolidSolid Solid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804 012804 012804 012804 012804 012804012804 012804 012804012804 012804 012804 012804 012804 012804

K-15 2-4 K-15 4-6K-12 2-4 K-12 4-6 K-13 2-4 K-13 4-6 K-13 6-8 K-14 2-4 K-14 4-6 K-14 6-8I5-145 2-4 I5-145 4-6 J-16 2-4 J-16 4-6 J-16 6-8Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr22 U 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U45 U 92 U 45 U 190 U 15 U 17 U 43 U 93 U 89 U 43 U 19 U22 U 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U22 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U22 U 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U33 52 260 1300 120 57 320 48 63 210 9667 13 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U

419 65 260 1300 120 57 320 48 63 210 96

mgkg25500

EPA 8082EPA 808210027

mgkgmgkg2550

EPA 8082 EPA 808210025

mgkgmgkg28100

EPA 8082EPA 808250022

mgkgmgkg6110

EPA 8082EPA 808210056

mgkgmgkg28

2000EPA 8082 EPA 8082

20028

mgkgmgkg22500

EPA 8082

Page 25 of 40

AR103776

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT012904 012904012804 012804 012904 012904 012904 012904 012904 012904012904 012904012804 012804

J0 115 2-4 J0 115 4-6I5-70 2-4 I5-70 4-6 I5-70 6-8K-10 8-10 dupG-075 8-10 I5-07 2-4 I5-07 4-6 I5-07 6-8 J-115 2-4 J-115 4-6K-16 4-6 K-16 6-8 Background 000050 G-075 2-4 G-075 4-6 G-075 6-8K-15 6-8 K-16 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

1500 3200 860 810nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

EPA 7420

mgkg

EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420

Page 29 of 40

AR103777

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT012904 012904012804 012804 012904 012904 012904 012904 012904 012904012904 012904012804 012804

J0 115 2-4 J0 115 4-6I5-70 2-4 I5-70 4-6 I5-70 6-8K-10 8-10 dupG-075 8-10 I5-07 2-4 I5-07 4-6 I5-07 6-8 J-115 2-4 J-115 4-6K-16 4-6 K-16 6-8 Background 000050 G-075 2-4 G-075 4-6 G-075 6-8K-15 6-8 K-16 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U

18 U 17 U 44 U 43 U 120 U 120 U 6 U 61 U 110 U 28 U 59 U 84 U 18 U9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U

86 93 24 300 370 340 28 21 660 150 24 610 1209 U 85 U 21 U 21 U 58 U 60 U 29 U 63 56 U 14 U 29 U 41 U 88 U

86 93 24 300 370 340 28 273 660 150 24 610 120

EPA 808250022

mgkgmgkg2350

EPA 8082EPA 808220022

mgkgmgkg27200

EPA 8082 EPA 80822028

EPA 8082EPA 80825

17

EPA 8082EPA 8082

mgkg15100

mgkgmgkg165

mgkg25200

mgkg mgkgmgkg11100

EPA 8082 EPA 8082EPA 80821000100

175

EPA 8082

20mgkgmgkg

15

Page 30 of 40

AR103778

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT013004 013004012904 012904 012904 012904 012904 012904 012904 012904 013004 013004012904 012904

J0 115 6-8 J0 115 8-10 J-115 4-6 dupD5-07 2-4 D5-07 6-8K-11 4-6 S5 (2004) E-075 2-4 E-075 6-8K-10 2-4 K-10 6-8 K-10 8-10 K-11 2-4J-115 6-8 J-115 8-10 K-08 2-4 K-09 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

2400 340 1200 1300nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420

Page 34 of 40

AR103779

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT013004 013004012904 012904 012904 012904 012904 012904 012904 012904 013004 013004012904 012904

J0 115 6-8 J0 115 8-10 J-115 4-6 dupD5-07 2-4 D5-07 6-8K-11 4-6 S5 (2004) E-075 2-4 E-075 6-8K-10 2-4 K-10 6-8 K-10 8-10 K-11 2-4J-115 6-8 J-115 8-10 K-08 2-4 K-09 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr11 U 87 U 63 U 06 U 81 U 10 U 59 U 062 U 6 U 063 U22 U 18 U 13 U 12 U 17 U 20 U 12 U 13 U 12 U 13 U11 U 87 U 63 U 06 U 81 U 10 U 59 U 062 U 6 U 063 U11 U 87 U 63 U 31 81 U 10 U 59 U 062 U 6 U 063 U11 U 87 U 63 U 06 U 81 U 10 U 59 U 062 U 6 U 063 U130 120 100 47 100 99 57 27 73 3311 U 87 U 63 U 12 81 U 10 U 59 U 094 6 U 09

130 120 100 9 100 99 57 364 73 42

20038

EPA 8082

mgkg24200

EPA 8082

mgkg

EPA 808220034

mgkgmgkg19200

EPA 8082EPA 80821

17mgkgmgkg

2210

EPA 8082 EPA 80821

22mgkgmgkg

1810

EPA 8082EPA 80821

20mgkgmgkg

1610

EPA 8082

Page 35 of 40

AR103780

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

DuplicateSolid Solid Solid SolidSolid SolidSolid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT020204 020204 020204 020304020204 020204013004 013004 013004 020204013004 013004013004 013004

TP 3B 5 dupTP 3B 5 TP 3C 7G-065 2-4 G-065 4-6 TP 2B 10 TP 2D 9 TP 3D 6 TP 1B 7F5-07 6-8 F5-07 8-10 TP 1C 9 S-7 (2004)G-065 6-8 G-065 8-10

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nr

013 J 39 U 21 U 39 U 034 J 045 J 04 J 19 U012 J 39 U 21 U 39 U 032 J 049 J 38 U 19 U015 J 39 U 21 U 39 U 037 J 045 J 38 U 19 U

0076 J 39 U 21 U 39 U 022 J 39 U 38 U 19 U0097 J 39 U 21 U 39 U 025 J 045 J 039 J 19 U0083 J 39 U 027 J 39 U 19 U 39 U 38 U 024 J039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U014 J 39 U 21 U 04 J 041 J 058 J 12 J 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr

039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U047 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U09 U 89 U 48 U 89 U 45 U 89 U 88 U 44 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U007 J 068 J 16 J 056 J 15 J 5 045 J 02 J02 J 39 U 21 U 39 U 064 J 075 J 068 J 028 J039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U

0078 J 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nr

039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nr

098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U0066 J 39 U 21 U 39 U 056 J 079 J 38 U 024 J039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U02 J 056 J 21 U 044 J 075 J 12 J 079 J 036 Jnr nr nr nr nr nr nr nr

098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U

EPA 8270

14mgkgmgkg

21

EPA 8270EPA 8270

14mgkgmgkg

15

EPA 8270 EPA 8270

13mgkgmgkg

13

EPA 8270EPA 8270

14mgkgmgkg

14

EPA 8270

Page 38 of 40

AR103781

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateSolid Solid Solid SolidSolid SolidSolid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT020204 020204 020204 020304020204 020204013004 013004 013004 020204013004 013004013004 013004

TP 3B 5 dupTP 3B 5 TP 3C 7G-065 2-4 G-065 4-6 TP 2B 10 TP 2D 9 TP 3D 6 TP 1B 7F5-07 6-8 F5-07 8-10 TP 1C 9 S-7 (2004)G-065 6-8 G-065 8-10

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag4100 9900 7200 9300 16000 7200 7400 13000

29 U 29 U 67 29 U 28 29 U 29 U 29 U83 13 11 62 25 42 75 7371 140 110 120 250 75 160 15029 U 29 U 31 U 29 U 3 29 U 29 U 29 U29 U 69 31 U 29 U 12 29 U 29 U 45

7200 60000 71000 38000 51000 14000 25000 50000270 150 44 63 210 32 130 68nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr55 86 39 83 32 6 77 5230 1200 13000 980 3400 520 130 820

62000 83000 29000 45000 110000 29000 37000 43000270 550 8700 850 1900 300 590 600

1800 7400 30000 12000 6500 4500 7400 9300520 610 320 550 750 370 1400 450039 13 099 22 23 047 17 1110 74 34 56 85 27 38 47590 U 580 U 630 U 580 U 580 U 580 U 620 570 U29 U 18 46 29 U 49 29 U 29 U 4729 U 29 U 31 U 29 U 29 U 29 U 29 U 29 U

1300 580 U 630 U 580 U 580 U 580 U 580 U 570 U23 U 23 U 25 U 23 U 23 U 23 U 23 U 23 Unr nr nr nr nr nr nr nr24 28 33 21 28 24 150 22320 2700 700 490 4100 690 680 1500nr nr nr nr nr nr nr

EPA 6020

mgkgmgkg

EPA 6020EPA 6020

mgkgmgkg

EPA 6020EPA 6020

mgkgmgkg

EPA 6020 EPA 6020

mgkgmgkg

EPA 6020

Page 39 of 40

AR103782

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateSolid Solid Solid SolidSolid SolidSolid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT020204 020204 020204 020304020204 020204013004 013004 013004 020204013004 013004013004 013004

TP 3B 5 dupTP 3B 5 TP 3C 7G-065 2-4 G-065 4-6 TP 2B 10 TP 2D 9 TP 3D 6 TP 1B 7F5-07 6-8 F5-07 8-10 TP 1C 9 S-7 (2004)G-065 6-8 G-065 8-10

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

068 U 12 U 12 U 17 U 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U14 U 24 U 24 U 34 U 26 U 150 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U068 U 12 U 12 U 17 U 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U068 U 12 U 12 U 22 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U068 U 12 U 12 U 17 U 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U67 12 150 270 110 370 059 U 15 063 U 12 16 24 14 096 U068 U 12 U 12 U 59 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U67 12 150 351 110 370 ND 15 ND 12 16 24 14 096

EPA 80822

16mgkgmgkg

271

EPA 8082 EPA 8082

mgkgmgkg

EPA 8082EPA 808210031

mgkgmgkg2220

EPA 8082EPA 80822526

mgkgmgkg1720

EPA 8082 EPA 8082

mgkgmgkg

EPA 8082EPA 8082

mgkgmgkg

EPA 8082EPA 8082

mgkgmgkg

EPA 8082

Page 40 of 40

AR103783

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer DumpS-1-2005

Y-055 12-14 dup

ENSATSubsurface Soil

020205

SolidDuplicate

Sauer Dump

020205

Solid

Y-055 10-12Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpY-055 20-22 G-0625 6-8 G-0625 8-10 J-115 10-12Y-055 6-8 Y-055 8-10Y-055 2-4 Y-055 4-6 G-0625 10-12 J-115 12-14Y-055 12-14 Y-055 14-16 Y-055 16-18 Y-055 18-20

020205 020205 020205 020205 020205 020305 020305 020305020205 020205 020205 020205 020305 020305ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSAT

Subsurface Soil Subsurface Soil Subsurface SoilSubsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid Solid

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrbeta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrdelta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-BHC (Lindane) nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChlordane total nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDD nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDE nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDT nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDieldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan I nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan II nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan sulfate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin aldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin ketone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor epoxide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethoxychlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToxaphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAroclor-1016 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1221 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1232 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1242 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1248 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1254 29 27 31 31 056 U 049 U 031 U 028 U 03 47 16 031 U 20 43 061 U 065 UAroclor-1260 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UTotal PCBs 29 27 31 31 ND ND ND ND 03 47 16 ND 20 43 ND ND

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag

23mgkg

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082

22 21 20 2415 1721 28 51 57 50 23 60 6315mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkg

Page 5 of 30

AR103784

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpK-16 10-12 K-16 12-14 K-16 14-16 K-17 10-12 K-17 2-4 L-10 2-4J-115 8-10 S-2-2005J-115 14-16 J-115 6-8 K-17 4-6 K-17 6-8 K-17 8-10K-16 6-8 K-16 8-10

J-115 10-12 dup

020305 020305 020405 020405020305 020305 020405 020405 020405 020405 020405 020405 020405 020405ENSAT ENSAT ENSAT ENSATENSAT

020705ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSolidSolid Solid Solid Solid Solid SolidSolid Solid Solid SolidSolid Solid Solid Solid

Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 33 41 06 U 048 U 051 U 051 U 39 43 075 U 69 23 35 13 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 39 18 U 18 U 038 U 099 UND 33 41 ND ND ND ND 39 43 ND 69 23 35 13 ND

EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082

5749 52 52 3251 31 27 59 68 21 30 36 7633mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg

Page 10 of 30

AR103785

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-10 4-6 L-14 0-2L-12 0-2 L-13 0-2 L-15 0-2 L-16 0-2 L-16 10-12 L-16 2-4

020705 020705 020705 020805 020805020805 020805 020805ENSAT ENSATENSATENSAT ENSATENSAT ENSATENSAT ENSAT

Surficial SoilENSAT

Subsurface SoilSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid

Subsurface SoilSolid

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolidSolid

020705 020705 020705 020805 020805

Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-10 10-12 L-10 6-8 L-10 8-10L-09 10-12 L-09 2-4 L-09 4-6 L-09 6-8 L-09 8-10

020805 020805 020805ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 33 012 U 017 U 012 U 0093 U 25 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 2 084 13 37 0088 U 12 045 11 017 034 87 11 0088 U 2413 U 064 U 072 U 037 U 68 U 23 U 0088 U 39 02 029 012 U 0093 U 22 027 0088 U 067ND ND 2 084 13 37 ND 192 065 139 017 034 134 137 ND 307

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 80821 25 1

82 80 72 62 62mgkgmgkg mgkg mgkgmgkg mgkg mgkgmgkg mgkg

EPA 8082 EPA 8082 EPA 8082

mgkg mgkg mgkg mgkg

164

1 20 1 1 162 24 73 80 73

mgkg mgkg mgkg

Page 15 of 30

AR103786

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpL-16 6-8 L-16 8-10 L-17 2-4 L-17 4-6 L-17 6-8

020805ENSATENSAT ENSAT ENSAT ENSAT

020805020805 020805ENSATENSAT ENSAT ENSAT

SolidSolidSolidSolid

ENSATSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT

SolidSubsurface SoilSubsurface Soil Subsurface Soil

SolidSolid Solid Solid

ENSAT020805 020805

Subsurface Soil

020905 020905 020905 020905 020905

L-08 2-4 L-08 4-6L-16 4-6Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

L-17 8-10 S-6-2005 S-7-2005 L-08 6-8L-07 4-6 L-07 6-8L-07 2-4L-09 6-8 dup L-17 2-4 dup

020805 020805 020805 020905ENSAT ENSAT ENSAT

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSolid Solid

Subsurface SoilSolidSolid Solid Solid

Subsurface Soil

Duplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 018 U01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 018 U01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 018 U

033 01 U 081 U 1 U 092 U 11 U 074 U 012 U 034 016 U 016 U 015 U 83 4 018 U01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 02

044 01 U 081 U 1 U 092 U 11 U 074 U 034 13 018 022 016 4 13 067021 01 U 081 U 1 U 092 U 11 U 074 U 015 037 016 U 016 U 015 U 21 21 018 U098 ND ND ND ND ND ND 049 201 018 022 016 144 191 087

EPA 8082 EPA 8082 EPA 8082EPA 8082EPA 8082EPA 8082 EPA 8082EPA 80821 1 1 10 10

677768mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg

EPA 8082 EPA 8082 EPA 8082

mgkg

1EPA 8082EPA 8082

1

mgkg67 59

EPA 8082 EPA 80821 1 1

77 74 72 73 79 791

60 58 8177mgkgmgkg mgkg

Page 20 of 30

AR103787

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpS-9-2005 L-11 10-12S-8-2005 L-11 4-6L-15 10-12 L-15 2-4 L-11 2-4L-15 4-6

020905020905020905 020905 020905 020905 021005021005 021005020905 021005020905ENSAT ENSAT ENSAT ENSAT ENSAT

Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSolidSolid Solid SolidSolid Solid

DuplicateDuplicate

020905

L-14 4-6Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump

L-15 8-10L-15 6-8 L-11 6-8L-14 6-8L-14 2-4L-08 4-6 dup L-07 2-4 dup

020905ENSAT ENSATENSATENSAT ENSAT ENSATENSAT ENSATENSAT

Subsurface SoilSubsurface SoilSolidSolid Solid Solid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr25 U 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U25 U 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U25 U 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U25 U 37 13 U 0076 U 28 U 45 011 U 0085 U 023 017 U 098 059 021 04412 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U24 12 17 0076 U 38 10 011 U 0085 U 062 024 29 22 074 1416 43 28 0076 U 15 47 011 U 0085 U 013 U 017 U 067 088 018 03452 20 198 ND 53 192 ND ND 085 024 455 367 113 218

EPA 8082EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 80821 2 2 11 11 50 10 1

7469 61 7258mgkg

41 6462mgkg

33 7410 10

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082EPA 8082150

80 68 7156mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg

Page 25 of 30

AR103788

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-12 2-4 L-12 4-6L-12 10-12

L-11 8-10 dup

021005 021005021005 021005 021005 021005 021005021005 021005 021005 021005 021005021005ENSATENSAT ENSATENSATENSAT

Subsurface SoilSubsurface Soil Subsurface SoilSubsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSolidSolid Solid Solid Solid Solid SolidSolid Solid

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-12 6-8 S-11-2005 S-12-2005L-13 4-6 L-13 6-8 L-13 8-10 S-10-2005L-12 8-10 L-13 2-4L-11 8-10 M-08 2-4 M-08 4-6

L-12 2-4 dup L-11 4-6 dup

030905 030905ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT

Solid SolidSolid Solid Solid SolidDuplicateDuplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U024 1 065 37 24 08 16 039 10 62 071 015 041 056 U 076 U017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U08 38 25 14 83 26 25 08 15 15 28 067 13 056 U 076 U026 12 095 5 3 15 12 12 13 43 084 022 033 056 U 076 U13 6 41 227 137 49 53 239 38 255 435 104 204 ND ND

EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 808222 25 1

6872 72 70 61 70 70 69 80 57mgkgmgkg mgkg mgkg mgkg

EPA 8082EPA 8082 EPA 8082 EPA 808210 101 52 10 1 1

6580 58 7373mgkg mgkgmgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkg

Page 30 of 30

AR103789

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0023 U 00082 J 0025 J 0033 U 0031 U 0029 U 0014 J 0023 J 0029 UAcetonitrile nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nrBenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nrBromodichloromethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UBromoform 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UBromomethaneMethyl bromide 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U2-Butanone (Methyl Ethyl Ketone) 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Un-Butylbenzene nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nrCarbon Disulfide 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UCarbon Tetrachloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChloroethaneEthyl chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether nr nr nr nr nr nr nr nr nrChloroform 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChloromethaneMethyl chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChloroprene nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nrCyclohexane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UCyclohexane Butyl- nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dibromoethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U14-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UDichlorodifluoromethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U11-Dichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U11-Dichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Ucis-12-Dichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Utrans-12-Dichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dichloroethene (Total) nr nr nr nr nr nr nr nr nrDichloromethane nr nr nr nr nr nr nr nr nr12-Dichloropropane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichloropropane nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Utrans-13-Dichloropropene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg

1 1 1 11 1 1 1SW846 8260B SW846 8260B SW846 8260BSW846 8260B SW846 8260B SW846 8260B SW846 8260B SW846 8260B

TOC TOC TOCno no no TOC TOC TOCyes - PCBs only yes - PCBs only

no no no no noyes - PCBs only yes - PCBs only yes - PCBs only yes - PCBs onlyyes - PCBs only yes - PCBs only yes - PCBs only yes - PCBs onlyyes - PCBs only yes - PCBs only yes - PCBs only yes - PCBs only

no no nono no no no no noyes - lead only yes - lead only

no no no no noyes - lead only yes - lead only yes - lead only yes - lead onlyyes - lead only yes - lead only yes - lead only yes - lead onlyyes - lead only yes - lead only yes - lead only yes - lead only

no no noyes yes yes no no nono no

yes yes yes yes yesyes yes no noyes yes no noyes yes yes yes

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

SW846 8260B1

Solid

mgkg

yesyes

yes - lead onlyno

yes - PCBs onlyno

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

Page 1 of 15

AR103790

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nrEthylbenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nrHexachlorobutadiene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UHexane nr nr nr nr nr nr nr nr nr2-Hexanone 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nrIsopropylbenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Up-Isopropyl Toluene nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nrMethyl Acetate 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UMethylcyclohexane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nrMethylene Chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1-Methyl-indan nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether 00057 U 00075 U 00011 J 000068 J 00078 U 00073 U 00061 U 00083 U 00073 UNaphthalene 0039 J 0063 J 14 U 0074 J 037 J 11 U 083 U 11 U 12 UNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nrStyrene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1112-Tetrachloroethane nr nr nr nr nr nr nr nr nr1122-Tetrachloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UTetrachloroethene 00015 J 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nrToluene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr124-Trichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U111-Trichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U112-Trichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UTrichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U11 2 - Trichloro -1 2 2 -trifluoroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UTrichlorofluoromethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U123-Trichloropropane nr nr nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nrVinyl Acetate nr nr nr nr nr nr nr nr nrVinyl chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U m+p-Xylenes nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nrXylenes (Total) 0017 U 0023 U 003 U 0025 U 0023 U 0022 U 0018 U 0025 U 0022 U

1 1 11 1 1 1SW846 8260B SW846 8260BSW846 8260B SW846 8260B SW846 8260B SW846 8260BSW846 8260B

mgkg

SW846 8260B1

SW846 8260B1

mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkg

Page 2 of 15

AR103791

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

SVOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 0045 J 0048 J 14 U 025 J 15 11 U 083 U 11 U 12 UAcenaphthylene 0079 J 099 UJ 14 U 0028 J 0027 J 11 U 083 U 11 U 12 UAcetophenone 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UAnthracene 015 J 0087 J 14 U 031 J 27 11 U 083 U 11 U 12 UAtrazine 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UBenzaldehyde 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UBenzo(a)Anthracene 045 J 025 J 0077 J 077 J 63 0033 J 0039 J 11 U 12 UBenzo(a)Pyrene 03 J 017 J 14 U 049 J 76 11 U 0025 J 11 U 12 UBenzo(b)fluoranthene 029 J 016 J 008 J 065 J 85 11 U 0023 J 11 U 12 UBenzo(ghi)Perylene 007 J 0061 J 14 U 019 J 17 002 J 0025 J 11 U 12 UBenzo(k)fluoranthene 012 J 0069 J 14 U 027 J 3 11 U 083 U 11 U 12 UBenzylbutylphthalateButylbenzylphthalate 0089 J 051 J 14 U 0087 J 11 U 11 U 083 U 11 U 12 U11-Biphenyl 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Bromophenyl-phenylether 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UCaprolactam 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UCarbazole 0056 J 099 UJ 14 U 019 J 11 11 U 083 U 11 U 12 U4-Chloroaniline 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Chloroethoxy)Methane 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Chloroethyl)Ether 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Chloroisopropyl)Ether nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Chloronaphthalene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Chlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Chlorophenyl-phenylether 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UChrysene 054 J 03 J 0087 J 087 J 69 004 J 006 J 11 U 12 UDibenzo(ah)Anthracene 0022 J 099 UJ 14 U 11 U 04 J 11 U 083 U 11 U 12 UDibenzofuran 0025 J 0032 J 14 U 0071 J 049 J 11 U 083 U 11 U 12 U12-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U14-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U33-Dichlorobenzidine 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U24-Dichlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDiethylphthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U24-Dimethylphenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDimethyl Phthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDi-n-Butylphthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U46-Dinitro-2-Methylphenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U24-Dinitrophenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U24-Dinitrotoluene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U26-Dinitrotoluene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDi-n-Octyl Phthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Ethylhexyl)Phthalate 026 J 076 J 14 U 074 J 11 U 17 J 083 U 11 U 12 UFluoranthene 058 J 036 J 14 U 11 nr 11 U 0048 J 11 U 12 UFluorene 0045 J 099 UJ 14 U 013 J 089 J 11 U 083 U 11 U 12 UHexachlorobenzene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UHexachlorobutadiene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UHexachlorocyclopentadiene 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UHexachloroethane 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UIndeno(123-cd)Pyrene 0099 J 0059 J 14 U 022 J 21 11 U 083 U 11 U 12 UIsophorone 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Methylnaphthalene 0036 J 0058 J 14 U 0032 J 012 J 11 U 083 U 11 U 12 U2-Methylphenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Methylphenol 0026 J 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UMethylMercury nr nr nr nr nr nr nr nr nrNaphthalene 0039 J 0063 J 14 U 0074 J 037 J 11 U 083 U 11 U 12 U2-Nitroaniline 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U3-Nitroaniline 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U4-Nitroaniline 0025 J 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UNitrobenzene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Nitrophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Nitrophenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UN-Nitroso-Di-n-Propylamine 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UN-Nitrosodiphenylamine 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U22-Oxybis(1-Chloropropane) 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UPentachlorophenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UPhenanthrene 054 J 039 J 0083 J 14 nr 0039 J 0049 J 11 U 12 UPhenol 0048 J 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UPyrene 074 J 035 J 01 J 15 17 0046 J 0097 J 11 U 12 U124-Trichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U245-Trichlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U246-Trichlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U

mgkg mgkgmgkg mgkg mgkg mgkg

2 22 2 2 2SW846 8270C SW846 8270C SW846 8270CSW846 8270C SW846 8270C SW846 8270C SW846 8270C SW846 8270C

2 2

mgkg mgkg

SW846 8270C2

mgkg

Page 3 of 15

AR103792

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium III nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrLead 626 13100 752 770 935 323 76 249 223 1350 180 109 118 159 1320Magnesium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrTin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCyanide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

mgkg mgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg

0 41 1 1 11 1 4 150 1 2 1EPA 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B EPA 6010B EPA 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B

mgkg

SW846 6010B2

Page 4 of 15

AR103793

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrbeta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrdelta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-BHC (Lindane) nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChlordane total nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDD nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDE nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDT nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDieldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan I nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan II nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan sulfate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin aldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin ketone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor epoxide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethoxychlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToxaphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAroclor-1016 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 0059 U 980 U 55 U 45 U 38 U 49 U 990 UAroclor-1221 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 0059 U 980 U 86 U 70 U 6 U 49 U 990 UAroclor-1232 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 084 980 U 55 U 45 U 38 U 49 U 990 UAroclor-1242 0039 U 005 U 0031 J 0056 U 0053 U 0053 U 0041 U 0034 J 0059 U 980 U 870 1700 120 49 U 990 UAroclor-1248 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 0059 U 9400 55 U 45 U 38 U 49 U 22000Aroclor-1254 071 16 0063 J 035 0053 U 012 0041 U 0098 14 44000 1000 1600 130 260 49000Aroclor-1260 063 064 0034 J 02 0043 J 006 003 J 005 J 0059 U 980 U 900 1600 130 49 U 990 UTotal PCBs 134 224 0128 055 0043 018 003 0182 224 53400 2770 4900 380 260 71000

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagTOC 32500 nr nr 13900 158000 nr

mgkg mgkgmgkg mgkgmgkg mgkg

9 not samplednot sampled 22 not sampledEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn

ugkg ugkgmgkg mgkg ugkg ugkgmgkg mgkg ugkg ugkgmgkg mgkg mgkg mgkg

0 251 1 5 11 1 25 101 1 1 1SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

1

mgkg

SW846 8082

Page 5 of 15

AR103794

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid Solid Solid SolidSolid Solid SolidSolid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieSubsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 122007 122007 122007 122007122007 122007121907 122007 122007 122007122007 122007 122007 122007

C7L210240016 C7L210240013 C7L210240020 C7L210240002 C7L210240001 C7L210240004 C7L210240005 C7L210240009 C7L210240010 C7L210240011C7L210240021 C7L210240019C7L210240033 C7L210240035 C7L210240015HS-SB-12-18-20HS-SB-12-09-10 HS-SB-12-14-15HS-SB-07-09-10 HS-SB-07-13-15 HS-SB-08-09-10 HS-SB-09-04-05 HS-SB-09-08-10 HS-SB-09-135-15HS-SB-05-16 HS-SB-06-14 HS-SB-10-08-10 HS-SB-10-11-12 HS-SB-11-08-09 HS-SB-11-09-10

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

448 647 621 217 736 473 178 418 76 nr 2760 221 382 2590 695nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkg mgkgmgkgmgkg mgkg mgkgmgkg mgkgmgkgmgkg mgkg mgkg mgkg

8 0 1 62 00 01 not sampled1 0 1 1SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B not sampled SW846 6010B

Page 9 of 15

AR103795

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteTOC

Solid Solid Solid SolidSolid Solid SolidSolid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieSubsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 122007 122007 122007 122007122007 122007121907 122007 122007 122007122007 122007 122007 122007

C7L210240016 C7L210240013 C7L210240020 C7L210240002 C7L210240001 C7L210240004 C7L210240005 C7L210240009 C7L210240010 C7L210240011C7L210240021 C7L210240019C7L210240033 C7L210240035 C7L210240015HS-SB-12-18-20HS-SB-12-09-10 HS-SB-12-14-15HS-SB-07-09-10 HS-SB-07-13-15 HS-SB-08-09-10 HS-SB-09-04-05 HS-SB-09-08-10 HS-SB-09-135-15HS-SB-05-16 HS-SB-06-14 HS-SB-10-08-10 HS-SB-10-11-12 HS-SB-11-08-09 HS-SB-11-09-10

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 690 1100 43 U 180 1300 5500 51 U 51 33 U 6000 43 U 6700 290000 15039 U 660 210 U 43 U 240 1300 2600 740 18 U 33 U 220 U 43 U 2100 49000 39 J39 U 48 U 1900 43 U 28 U 200 U 410 U 51 U 110 33 U 2800 43 U 590 U 6200 U 59 U

1350 3000 420 2600 8100 740 161 8800 8800 339000 189

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 1160 U 11100 120000 52100 nr nr nr nr nr nr nr nr 140000 nr

mgkg mgkg mgkg mgkgmgkgmgkg mgkg mgkgmgkg mgkgmgkgmgkg mgkg mgkg mgkg

not sampled not sampled not sampled 8not sampled not samplednot sampled 9 not sampled not sampled9 22 9 not sampledEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn

ugkg ugkg ugkg ugkgugkgugkg ugkg ugkgugkg ugkgugkgugkg ugkg ugkg ugkg

5 0 10 12510 00 0 00 05 0 0 5SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

Page 10 of 15

AR103796

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid SolidSolid Solid Solid SolidSolid SolidSubsurface Soil Subsurface Soil

Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie122107 122107

Malcolm Pirnie Malcolm Pirnie122107 122107122007 122007 122007 122007 122007 122007 122007 122007

5244089 5244090 52440995244091 5244092 52441005244093 5244095 5244096 5244094 5244097 5244098HS-SB-15-19-20HS-SB-15-13-15 HS-SB-15-17-18HS-SB-13-09-10 HS-SB-13-14-15 HS-SB-13-17-18 HS-SB-14-19-20 HS-SB-15-09-10HS-SB-13-19-20 HS-SB-14-09-10

Sauer Dump Sauer DumpHS-SB-14-14-15 HS-SB-14-16-17

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

10500 1770 94 973 858 389 176 855 1190 573 569 922nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

mgkgmgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg

1 11 1 1 1 11 1EPA 6010B EPA 6010B

10 1 1EPA 6010B EPA 6010BEPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B

Page 14 of 15

AR103797

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteTOC

Solid SolidSolid Solid Solid SolidSolid SolidSubsurface Soil Subsurface Soil

Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie122107 122107

Malcolm Pirnie Malcolm Pirnie122107 122107122007 122007 122007 122007 122007 122007 122007 122007

5244089 5244090 52440995244091 5244092 52441005244093 5244095 5244096 5244094 5244097 5244098HS-SB-15-19-20HS-SB-15-13-15 HS-SB-15-17-18HS-SB-13-09-10 HS-SB-13-14-15 HS-SB-13-17-18 HS-SB-14-19-20 HS-SB-15-09-10HS-SB-13-19-20 HS-SB-14-09-10

Sauer Dump Sauer DumpHS-SB-14-14-15 HS-SB-14-16-17

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

460 U 120 U 88 U 41 U 42 U 63 U 43 U 4 U 40 U 21 U 79 U 4 U720 U 190 U 140 U 65 U 66 U 100 U 67 U 64 U 62 U 33 U 12 U 63 U460 U 120 U 88 U 41 U 42 U 63 U 43 U 4 U 40 U 21 U 79 U 4 U460 U 11000 88 U 41 U 42 U 4200 43 U 39 40 U 21 U 79 U 4 U

7200 120 U 700 64 J 39 63 U 45 4 U 2400 1400 340 17 J4900 3800 290 J 41 U 66 1600 63 95 J 1700 840 410 14 J2100 J 3000 180 J 41 U 42 790 34 94 J 2200 820 100 59 J

14200 17800 1170 6 147 6590 142 579 6300 3060 850 369

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr

mgkgmgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg

EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn

ugkgugkg ugkg ugkgugkg ugkg ugkg ugkg ugkg ugkgugkg ugkg

1 1010 1 5 2 120 10SW846 8082 SW846 8082

100 1 1SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

Page 15 of 15

AR103798

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 001 U 001 U 001 U 001 U 0021 B 0018 B 0019 B 0021 B 0022 B 0016 B 0022 B 0019 B 0012 BAcetonitrile nr nr nr nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBromoform 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBromomethaneMethyl bromide 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Un-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide 0005 U 0005 U 0042 0005 U 001 U 001 U 0001 J 0003 J 001 U 001 U 001 U 0003 J 001 UCarbon Tetrachloride 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChlorobenzene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChloroethaneEthyl chloride 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChloromethaneMethyl chloride 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChloroprene nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromoethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrDichlorodifluoromethane nr nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U12-Dichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U11-Dichloroethene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ucis-12-Dichloroethene nr nr nr nr nr nr nr nr nr nr nr nr nrtrans-12-Dichloroethene 0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr nr nr12-Dichloroethene (Total) nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U13-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Utrans-13-Dichloropropene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

noyes

not reported

yesyesyes

mgL

no

1NA

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

yes yes yes yes yes yes yes yesyes yes yes yesyes yes yes yes yes yes yesyes yes yes yes yes

yes yes yes yes yes yes yes yes yes yes yes yesno no no no no no no no no no no noyes yes yes yes yes yes yes yesyes yes yes yes

no no no no no no nono no no no no

not reported not reported not reported1 1 1 1 1 1 1 11 1 1 1

NA NA NA NA NA NA NANA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 1 of 28

AR103799

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr nr nr nr nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nr nr nr nr nrIsopropylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrp-Isopropyl Toluene nr nr nr nr nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr nr nr nr nr nrMethylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 MethyMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 0005 U 0005 U 0005 U 0005 U 002 B 0002 JB 0009 JB 0008 JB 0006 JB 0001 JB 0003 JB 0004 JB 0002 JB1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrStyrene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U1112-Tetrachloroethane nr nr nr nr nr nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UTetrachloroethene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr111-Trichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U112-Trichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UTrichloroethene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr nr nr nr nr nrTrichlorofluoromethane nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr nr nrVinyl chloride 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U m+p-Xylenes nr nr nr nr nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U

mgL mgL mgL mgLmgL mgL mgL mgLmgL mgL mgL mgLNA NA NA NANA NA NA NANA NA NA NA1 1 1 11 1 1 11 1 1 1

not reported not reported not reported

mgL

not reported1

NA

Page 3 of 28

AR103800

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 001 U 001 U 002 U 001 U 001 U 0004 J 001 U 001 U 001 U 001 U 001 U 0007 J 001 UAcenaphthylene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UAcetophenone nr nr nr nr nr nr nr nr nr nr nr nr nrAnthracene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UAtrazine nr nr nr nr nr nr nr nr nr nr nr nr nrBenzaldehyde nr nr nr nr nr nr nr nr nr nr nr nr nrBenzo(a)Anthracene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(a)Pyrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(b)fluoranthene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(ghi)Perylene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(k)fluoranthene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzylbutylphthalateButylbenzylphthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 U11-Biphenyl nr nr nr nr nr nr nr nr nr nr nr nr nr4-Bromophenyl-phenylether 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UCaprolactam nr nr nr nr nr nr nr nr nr nr nr nr nrCarbazole nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Chloroaniline 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Chloroethoxy)Methane 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Chloroethyl)Ether 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Chloroisopropyl)Ether 001 U 001 U 002 U 001 U nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Chloronaphthalene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Chlorophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Chlorophenyl-phenylether 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChrysene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDibenzo(ah)Anthracene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDibenzofuran 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 U12-Dichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U13-Dichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U14-Dichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U33-Dichlorobenzidine 002 U 002 U 004 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U24-Dichlorophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDiethylphthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U24-Dimethylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDimethyl Phthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDi-n-Butylphthalate 0007 JB 0005 JB 0004 JB 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 JB 001 U46-Dinitro-2-Methylphenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U24-Dinitrophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U24-Dinitrotoluene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U26-Dinitrotoluene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDi-n-Octyl Phthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Ethylhexyl)Phthalate 001 U 001 U 002 U 001 U 001 U 0003 JB 0001 JB 0006 JB 0023 B 0015 B 0032 B 0004 JB 001 UFluoranthene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0002 J 001 UFluorene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 UHexachlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UHexachlorobutadiene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UHexachlorocyclopentadiene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UHexachloroethane 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UIndeno(123-cd)Pyrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UIsophorone 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Methylnaphthalene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Methylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Methylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UMethylMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Nitroaniline 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U3-Nitroaniline 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U4-Nitroaniline 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 UNitrobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Nitrophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Nitrophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 UN-Nitroso-Di-n-Propylamine 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UN-Nitrosodiphenylamine 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U22-Oxybis(1-Chloropropane) nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UPentachlorophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 UPhenanthrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UPhenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UPyrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 U124-Trichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U245-Trichlorophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U

1NA

mgL

1 2 1 1 1 1 1 1 1 1 1 1NA NA NA NA NA NA NA NA NA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgLmgL mgL mgL mgL

Page 4 of 28

AR103801

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

246-Trichlorophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U

Page 5 of 28

AR103802

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 957 089 J 735 0232 JB 00352 B 30 301 734 682 183 179 948 116Antimony 006 U 006 U 006 U 006 U 00169 U 00359 B 00169 U 00169 U 00169 U 00169 U 00169 U 00169 U 00169 UArsenic 001 U 00145 R 00303 R 001 U 00022 U 00688 00047 B 00359 00169 00125 00022 U 00246 00022 UBarium 0628 02 U 0617 02 U 00029 U 144 0283 752 0804 0769 0155 B 0953 00899 BBeryllium 0005 U 0005 U 0008 0005 U 00004 B 00012 B 00004 U 00099 00176 00026 B 00004 U 00268 00004 UCadmium 0005 U 0005 J 0005 U 0005 U 0001 U 00065 0001 U 00015 B 00522 0007 B 0001 U 00382 0001 UCalcium 572 6275 347 5 U 015 B 364 240 235 184 129 105 110 374Chromium 001 U 001 U 0332 001 U 00045 U 0227 00302 0802 0761 0162 00154 0559 00045 UChromium III nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 005 U 005 U 005 U 005 U 00027 U 00365 B 00036 B 00769 B 017 00328 B 00031 B 0375 00328 BCopper 0025 U 0025 U 114 0025 U 0005 B 0845 00725 0722 0679 039 0136 073 00382Iron 3112 117 25325 01 U 00148 B 157 204 254 164 78 715 108 733Lead 00297 J 0005 U 0546 0005 U 00057 276 012 26 141 055 00501 0973 00331Magnesium 168 120 5675 5 U 00408 U 70 499 144 159 127 103 129 285Manganese 1324 0342 194 0015 U 00047 U 181 0864 287 914 149 0581 376 39Mercury 00002 U 00002 U 00058 00002 U 00001 U 00022 000026 00001 U 00001 U 00001 U 00001 U 0013 B 00001 UNickel 004 U 004 U 0333 004 U 00054 U 0213 00208 B 0604 111 0198 00133 B 0713 00109 BPotassium 373 J 402 J 335 J 5 U 0242 U 221 196 446 545 387 285 417 744Selenium 0005 U 0005 U 0005 U 0005 U 00036 U 00081 00038 B 00149 0018 U 00036 U 00036 U 00048 B 00036 USilver 001 U 001 U 001 U 001 U 00025 U 00027 B 00025 U 00147 00025 U 00026 B 00025 U 00137 00025 USodium 375 J 760 J 110 J 5 U 0544 B 723 921 636 579 545 345 723 785Thallium 001 U 001 U 001 U 001 U 00017 U 0003 B 00017 U 00125 B 00085 U 00085 U 00085 U 00085 U 00017 UTin 004 U 004 U 004 U 004 U nr nr nr nr nr nr nr nr nrVanadium 005 U 005 U 0869 005 U 00028 U 03 00539 0247 0278 00774 00054 B 0253 0006 BZinc 0197 002 U 541 002 U 00022 U 785 0449 558 112 239 0193 108 0147Cyanide 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 00186 001 U 0015 001 U 001 U

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr

1

NAmgL

1 1 1 1 11 1 1 1NA NA NA NA NA NA NANA NA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

1 1 1

Page 6 of 28

AR103803

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 Ualpha-BHC 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 00000074 J 000005 U 0000065 J 000005 U 000005 Ubeta-BHC 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 Udelta-BHC 000005 U 000005 U 00005 U 000005 U 00000014 J 000005 U 000005 U 000005 U 00000024 JB 000005 U 000005 U 000005 U 000005 Ugamma-BHC (Lindane) 000005 U 000005 U 00005 U 000005 U 000005 U 00000036 J 000005 U 000005 U 00000039 J 000005 U 000005 U 000005 U 000005 Ualpha-Chlordane nr nr nr nr 000005 U 00000011 J 000005 U 000005 U 000005 U 000005 U 00000012 J 000005 U 000005 Ugamma-Chlordane nr nr nr nr 000005 U 000005 U 0000001 J 000005 U 000005 U 00000024 J 000005 U 000005 U 000005 UChlordane total 00005 U 00005 U 0005 U 00005 U nr nr nr nr nr nr nr nr nr44-DDD 00001 U 00001 U 0001 U 00001 U 00001 U 00000022 J 00001 U 00001 U 00000031 J 00001 U 00001 U 00001 U 00001 U44-DDE 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00000027 J 00000024 J 00000018 J 00001 U 00001 U 00001 U 00001 U44-DDT 00001 U 00001 U 0001 U 00001 U 00001 U 00000032 J 00000022 J 00000032 J 00001 U 00001 U 00001 U 00001 U 00001 UDieldrin 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 UEndosulfan I 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 UEndosulfan II 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00000017 J 00001 U 00001 UEndosulfan sulfate 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00000024 J 00001 U 00001 U 00001 U 00001 UEndrin 00001 U 00001 U 0001 U 00001 U 00001 U 00000017 J 00000016 J 00001 U 00000029 J 00000012 J 00001 U 00001 U 00001 UEndrin aldehyde 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00000027 J 00000043 JEndrin ketone 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 UHeptachlor 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 UHeptachlor epoxide 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 UMethoxychlor 00001 U 00001 U 0001 U 00001 U 00005 U 00005 U 00005 U 00005 U 00005 U 00005 U 00005 U 00005 U 00000041 JToxaphene 0001 U 0001 U 001 U 0001 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 UAroclor-1016 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1221 00001 U 00001 U 0001 U 00001 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 UAroclor-1232 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1242 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1248 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1254 0001 U 0001 U 00299 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 000059 J 000017 JAroclor-1260 0001 U 0001 U 001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UTotal PCBs 00299 000059 000017

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

mgLNA

1 1 1 1 1 11 1 1 1NA NA NA NA NA NA NANA NA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 7 of 28

AR103804

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0016 B 0015 B 0018 B 001 U 0008 B 001 B 001 U nr nr nr nr nr 00104 B 00082 B

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

yes yes yes no no no noyes yes yes yes no yes yesyes no no no noyes yes yes yes yesno no no yes

yes yes no noyes yes yes yes CN only CN onlyyes yes yes yesno no no nono no no no yesno no no no yes

yes yes yes PCBs PCBs PCBs PCBsyes yes no no PCBs yes yesno no no no nono no no no nono no no no

EPA 8260 EPA 82601 1 1 1 1 1 1 Not Reported Not Reported

NA NA NANA NA NA NA NANAmgL mgL mgL mgLmgL mgL mgL mgL mgL

Holding time exceeded

Page 8 of 28

AR103805

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr0003 JB 0002 JB 0004 JB 0002 JB 0003 JB 0001 JB 0004 JB nr nr nr nr nr 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 001 U 001 U

Holding time exceededmgL mgLmgL mgL mgLmgL mgL mgL mgLNA NANA NA NANA NA NA NA

Not Reported Not Reported1 1 11 1 1 1EPA 8260 EPA 8260

Page 10 of 28

AR103806

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr 004442 B 003135 B005 U 001 U 005 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 0001 J 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0009 JB 0012 B 0053 B 0025 B 0039 B nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr

EPA 625EPA 6251 11 1 1

NA NA NA NANA NA NAmgL mgL mgL mgL mgL mgL mgL

Incomplete lab report No other SVOCs detected

Incomplete lab report No other SVOCs detected

Page 11 of 28

AR103807

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

246-Trichlorophenol

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

Page 12 of 28

AR103808

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0192 B 112 0116 B 176 0157 B nr nr 05 U 365 784 239 056 nr nr00169 U 00169 U 00169 U 00169 U 00169 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr00022 U 00138 00042 B 00022 U 00022 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr00553 B 00774 B 00352 B 00325 B 00437 B nr nr 05 U 05 U 05 U 052 05 U nr nr00004 B 00004 U 00004 U 00004 U 00004 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr0001 U 0001 U 0001 U 0001 U 0001 B nr nr 005 U 005 U 005 U 005 U 005 U nr nr271 356 292 594 309 nr nr 927 30 30 818 298 nr nr

00045 U 00059 B 00045 U 00207 00045 U nr nr 01 U 01 U 01 U 01 U 01 U nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

00027 U 00051 B 00027 U 00027 U 00027 U nr nr 01 U 01 U 01 U 01 U 01 U nr nr00122 B 0025 00099 B 00206 B 00123 B nr nr 01 U 01 U 01 U 01 U 01 U nr nr143 908 286 267 343 nr nr 2424 409 72 131 172 nr nr

00147 00538 00061 0017 00076 nr nr 025 U 025 U 025 U 025 U 025 U nr nr869 103 85 818 882 nr nr 449 175 18 793 10 nr nr

0223 149 0266 0119 0441 nr nr 067 025 035 039 025 nr nr00001 U 00001 U 00001 U 00001 U 00001 U nr nr 00029 U 00029 U 00029 U 00029 U 00029 U nr nr00054 U 00073 B 00054 U 00211 B 00054 U nr nr 01 U 01 U 01 U 01 U 01 U nr nr

71 122 908 352 833 nr nr 17 166 172 397 34 nr nr00036 U 00073 00036 U 00036 U 00036 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr00025 U 00025 U 00025 U 00025 U 00025 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr114 113 977 609 109 nr nr 728 160 159 154 148 nr nr

00018 B 00017 U 00017 U 00085 U 00017 U nr nr 0025 U 0025 U 0025 U 0025 U 0025 U nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

00028 U 00046 B 00028 U 00062 B 00028 U nr nr 01 U 01 U 01 U 01 U 01 U nr nr00247 0124 00237 00848 0023 nr nr 05 U 05 U 05 U 05 U 05 U nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr 0005 U 0005 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 1 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr 025 U 025 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 025 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 0002 U 0002 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 157nr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 1 Unr nr nr nr nr nr nr nr nr nr nr nr 0025 U 0025 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 U

1 1 1 1 1 1NA NA NANA NA NA NA NANA NA NA

mgL mgLmgL mgL mgL mgL mgLmgL mgL mgL mgL

Not Reported Not ReportedNA NA

mgL mgL

Page 13 of 28

AR103809

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag000005 U 00000011 J 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U

00000029 JB 000005 U 000005 U 00000019 J 00000026 J nr nr nr nr nr nr nr U U000005 U 000005 U 000005 U 00000032 J 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr00001 U 00001 U 00001 U 00000016 J 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00000011 JB 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00000036 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U

0000002 J 00000011 J 00000019 J 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U00000028 J 00001 U 00000014 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U

00001 U 00001 U 00000024 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00000014 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00016 B

000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 00000017 J 000005 U nr nr nr nr nr nr nr 00001 U 00001 U00005 U 00005 U 00005 U 00005 U 00005 U nr nr nr nr nr nr nr 00001 U 00001 U0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr 005 U 005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U0002 U 0002 U 0002 U 0002 U 0002 U nr nr U U U U U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U nr nr0001 U 0001 U 0001 U 0001 U 0001 U nr nr 02 U 05 U 04 U 02 U 04 U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U

U U U U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 608 EPA 6081 1 1 1 1 Not reported Not reported

NA NA NANA NA NA NA NANA NA NA NAmgL mgLmgL mgL mgL mgL mgL mgLmgL mgL mgL mgL

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Page 14 of 28

AR103810

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00193 B 00123 B 0005 U 00086 B 00089 B 00082 B 00169 B 0008 B 0003 JB 00109 B 0005 U 001 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 001 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr 001 U nr nr 0005 U

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

yes yes yes yesyes yes yes yes noyes yes yes yesyes yes yes no noyes yes yes yes yes yes no no

CN only CN only CN only CN only CN onlyCN only CN only CN only CN only no no no noyes yes yes yesyes yes yes no noyes yes no no

yes yes yes yesyes no no no noyes yes yes yesno no no no nono no no no no no no yes - PCB Congeners

EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported 1Not Reported Not Reported Not Reported 1

NA NA NA NA NANA NA NA NA NA NA NAmgL mgL mgL mgL mgLmgL mgL mgL mgL mgL mgL mgL

Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 15 of 28

AR103811

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr 001 U nr nr 001 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 001 Unr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 00073 0002 J 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U nr

Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceededmgL mgLmgL mgL mgL mgLmgL mgL mgL mgLmgL mgLNA NANA NA NA NANA NA NA NANA NA

Not Reported 1Not Reported Not Reported 1 Not ReportedNot Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedEPA 8260EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260

Page 17 of 28

AR103812

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0002 J nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nrnr nr nr nr

001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U nr nr nr001 U nr nr nr

0003 JB nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr

0025 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr

0002 JB nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nrnr nr nr nr

001 U nr nr nr0025 U nr nr nr0025 U nr nr nr0025 U nr nr nr001 U nr nr nr001 U nr nr nr

0025 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr

0025 U nr nr nr00005 J nr nr nr0006 JB nr nr nr001 U nr nr nrnr nr nr nr

0025 U nr nr nr

EPA 625 EPA 625 EPA 625 EPA 625 EPA 625 EPA 625 EPA 625 EPA 625

NAmgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgL

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Page 18 of 28

AR103813

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

001 U nr nr nr

Page 19 of 28

AR103814

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 00018 J nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 02 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 006 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 001 U nr nr nr05 U 05 U 05 U 05 U 05 U 05 U 058 05 U 0208 nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 00001 J nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00006 J nr nr nr198 250 556 651 628 614 127 492 278 nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00011 JB nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00018 J nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 0025 U nr nr nr212 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0141 nr nr nr025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 00013 JB nr nr nr608 626 10 126 1215 120 132 751 582 nr nr nr077 005 U 005 U 005 U 005 U 005 U 087 005 U 0661 nr nr nr

0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 000012 J nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 0005 J nr nr nr292 35 612 897 888 626 103 1 U 258 E nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 0005 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 001 U nr nr nr130 153 152 1084 1120 1085 555 683 156 nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 001 U nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00037 J nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 002 U nr nr nr

Not Reported Not Reported Not Reported Not Reported 1Not Reported Not Reported Not Reported Not ReportedNA NA NA NANA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 20 of 28

AR103815

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U U U U U U 000005 U00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr

nr nr nr nr 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nrnr nr nr nr nr nr nr nr 000005 U nr nr nr

0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00017 B 00015 B 00017 B 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00005 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 0005 U nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0002 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr

nr nr nr nr nr nr nr nr 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag272206046008870

129001260059901800798644

50600

EPA 608 EPA 608 EPA 608 EPA 608EPA 608 EPA 608 EPA 608 EPA 608Not reported Not reported Not reported Not reportedNot reported Not reported Not reported Not reported 1

NA NA NA NA NA NA NA NA NAmgL mgL mgL mgL mgLmgL mgL mgL mgL

EPA 1668ANANApgL

Page 21 of 28

AR103816

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-4 SW-5SW-2 SW-3 SW-A

SW-4 dup

081202081202 081202081202 081202ENSAT ENSAT ENSAT ENSAT ENSAT

Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous AqueousAqueous Aqueous Aqueous

Duplicate

Sauer Dump Sauer Dump Sauer Dump

011107 011107 011107

Sauer Dump

C7A130135016 C7A130135015 C7A130135018 C7A130135017DG-SW01-F (DISSOLVED) DG-SW01-T DG-SW02-F (DISSOLVED) DG-SW02-T

011107

Surface Water Surface Water Surface Water Surface WaterMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr 92 J nr 302nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr3 U nr 16 J nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

SW846 6010B SW846 6010B SW846 6010B SW846 6010B1 1 1 1

ugL ugL ugL ugL

SW846 6010B SW846 6010B SW846 6010B SW846 6010B1 1 1 1

ugL ugL ugL ugL

Page 27 of 28

AR103817

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-4 SW-5SW-2 SW-3 SW-A

SW-4 dup

081202081202 081202081202 081202ENSAT ENSAT ENSAT ENSAT ENSAT

Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous AqueousAqueous Aqueous Aqueous

Duplicate

Sauer Dump Sauer Dump Sauer Dump

011107 011107 011107

Sauer Dump

C7A130135016 C7A130135015 C7A130135018 C7A130135017DG-SW01-F (DISSOLVED) DG-SW01-T DG-SW02-F (DISSOLVED) DG-SW02-T

011107

Surface Water Surface Water Surface Water Surface WaterMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag112 334 10200 65 910 025 012 022 Q 05794 12700 41700 753 4200 06 BQ 062 BQ 062 BQ 26 BQ1490 63000 160000 1240 14700 044 BQ 12 BQ 06 BQ 5 BQ2630 121000 574000 2170 44700 087 BQ 35 BQ 054 QB 15 BQ3390 104000 1110000 2520 96000 13 QB 6 QB 057 BQ 31 BQ3130 95500 908000 1850 77900 12 QB 54 BQ 04 QB 22 BQ1410 42200 388000 755 31000 057 QB 26 B 013 JQB 58 QB424 13000 130000 211 9200 019 Q 085 Q 0024 JQ 13 Q205 2100 28000 78 2110 0085 036 00082 JQ 047178 518 34300 504 2170 0076 032 00064 J 032

13800 454000 3390000 9690 283000 5581 B Q 2097 B Q 31186 B Q 8399 B Q

EPA 1668AEPA 1668A EPA 1668AEPA 1668A EPA 1668ANA NA NA NA NANA NA NA NA NA

pgL pgLpgL pgL pgL

SW846 8082 SW846 8082 SW846 8082 SW846 80821 1 1 1

ugL ugL ugL ugL

EPA-22 1668A EPA-22 1668A EPA-22 1668A EPA-22 1668A1 1 1 1

ngL ngL ngL ngL

Page 28 of 28

AR103818

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0012 B 0065 B 0028 B 1 U 1 U 057 B 031 B 02 B 013 B 027 B nr 0055 B 017 BAcetonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrAcrolein nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrBromoacetone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UBromoform 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UBromomethaneMethyl bromide 001 U 001 U 001 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 001 U 5 U 5 U 018 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Un-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UCarbon Tetrachloride 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UChlorobenzene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0015 0027 UChloroethaneEthyl chloride 001 U 001 U 001 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U2-ChloroethanolEthylene chlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 001 U 50 U 50 U nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UChloromethaneMethyl chloride 001 U 001 U 001 U 25 U 25 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UChloroprene nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr12-Dibromoethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrDichlorodifluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr11-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U12-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U11-Dichloroethene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Ucis-12-Dichloroethene nr nr nr nr nr nr nr nr nr nr nr nr nrtrans-12-Dichloroethene 0005 U 0005 U 0005 U 5 U 5 U nr nr nr nr nr nr nr nr12-Dichloroethene (Total) nr nr nr nr nr 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U13-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Utrans-13-Dichloropropene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUS

noyesno

SedimentSolid

yesyesyes

not reported1

266mgKg

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

yes yes yes yes yes yes yes yes yes no yes yesyes yes yes yesyes yes no no yes no yes yes

yes yes yes yes yes yes yes yes yes no yes yesno no no nono no no no no no no no

yes yes yes yes yes yes yes yes yes yes yes yesno no no nono no no no no no no no

not reported not reported not reported not reported1 1 1 1 1 1 1 1 1

77 79 87 79625 316 78 28 63mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

Page 1 of 25

AR103819

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr nr nr nr nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone 001 U 001 U 001 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U2-Hydroxypropionitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrIsopropylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrp-Isopropyl Toluene nr nr nr nr nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr nr nr nr nr nrMethylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 00081 B 0014 B 0013 B 5 U 25 007 B 014 B 05 B 01 B 017 B nr 0058 B 0084 B1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 001 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrPropiolactone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrPropionitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrPropylamine nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrStyrene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0001 J 0027 U1112-Tetrachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UTetrachloroethene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr111-Trichloroethane 0005 U 0005 U 00056 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U112-Trichloroethane 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UTrichloroethene 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr nr nr nr nr nrTrichlorofluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr123-Trichloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U 001 U 1 U 1 U nr nr nr nr nr nr nr nrVinyl chloride 001 U 001 U 001 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U m+p-Xylenes nr nr nr nr nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 0005 U 10 U 10 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U

mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg87 79 78266 625 316 77 79 28 63

1 1 1 1 1 11 1 1 1not reported not reported not reported not reported not reported

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

Page 2 of 25

AR103820

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 092 U 22 U 22 U nr nr 15 2 042 J 16 U 14 U nr 023 J 019 JAcenaphthylene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 0054 J 011 JAcetophenone nr nr nr nr nr nr nr nr nr nr nr nr nrAnthracene 092 U 22 U 22 U nr nr 14 U 027 J 25 U 16 U 14 U nr 014 J 062 JAtrazine nr nr nr U U nr nr nr nr nr nr nr nrBenzaldehyde nr nr nr nr nr nr nr nr nr nr nr nr nrBenzo(a)Anthracene 092 U 309 22 U nr nr 056 J 14 J 071 J 086 J 12 J nr 11 43Benzo(a)Pyrene 092 U 22 U 22 U nr nr 056 J 056 J 084 J 07 J 12 J nr 046 35Benzo(b)fluoranthene 092 U 22 U 25 nr nr 1 J 11 J 16 J 15 J 22 J nr 083 J 58 JBenzo(ghi)Perylene 092 U 22 U 22 U nr nr 056 J 044 J 25 U 055 J 086 J nr 034 J 26Benzo(k)fluoranthene 092 U 22 U 22 U nr nr 1 J 11 J 16 J 15 J 22 J nr 083 J 58 JBenzylbutylphthalateButylbenzylphthalate 092 U 22 U 22 U nr nr 36 097 J 25 U 16 U 14 U nr 044 U 85 U11-Biphenyl nr nr nr nr nr nr nr nr nr nr nr nr nr4-Bromophenyl-phenylether 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UCaprolactam nr nr nr nr nr nr nr nr nr nr nr nr nrCarbazole nr nr nr nr nr 14 U 16 U 25 U 16 U 14 U nr 0062 J 012 J4-Chloroaniline 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Chloroethoxy)Methane 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Chloroethyl)Ether 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Chloroisopropyl)Ether 092 U 22 U 22 U nr nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U2-Chloronaphthalene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 012 J2-Chlorophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U4-Chlorophenyl-phenylether 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UChrysene 092 U 35 19 J nr nr 056 J 079 J 088 J 078 J 12 J nr 062 37Dibenzo(ah)Anthracene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 025 J nr 02 J 068 JDibenzofuran 092 U 22 U 22 U nr nr 024 J 058 J 25 U 16 U 14 U nr 015 J 011 J12-Dichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U13-Dichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 0049 J 85 U14-Dichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 011 J 85 U33-Dichlorobenzidine 184 U 46 U 46 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U24-Dichlorophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDiethylphthalate 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U24-Dimethylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDimethyl Phthalate 11 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDi-n-Butylphthalate 99 94 11 JB nr nr 057 J 021 J 04 J 023 J 028 J nr 012 J 024 J46-Dinitro-2-Methylphenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U24-Dinitrophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U24-Dinitrotoluene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 019 J 85 U26-Dinitrotoluene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDi-n-Octyl Phthalate 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Ethylhexyl)Phthalate 065 J 15 J 22 U nr nr 15 14 J 16 J 12 J 1 B nr 09 079 JFluoranthene 092 U 3 22 U nr nr 094 J 14 J 11 J 11 J 16 nr 12 52Fluorene 092 U 22 U 22 U nr nr 015 J 021 J 25 U 16 U 14 U nr 024 J 026 JHexachlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UHexachlorobutadiene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UHexachlorocyclopentadiene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UHexachloroethane 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UIndeno(123-cd)Pyrene 092 U 22 U 22 U nr nr 044 J 045 J 044 J 055 J 086 J nr 042 J 24Isophorone 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U2-Methylnaphthalene 25 22 U 22 U nr nr 14 U 017 J 25 U 16 U 14 U nr 0065 J 85 U2-Methylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U4-Methylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UMethylMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene 41 22 U 22 U nr nr 14 U 02 J 043 J 16 U 14 U nr 021 J 013 J2-Nitroaniline 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U3-Nitroaniline 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U4-Nitroaniline 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 UNitrobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U2-Nitrophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U4-Nitrophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 UN-Nitroso-Di-n-Propylamine 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UN-Nitrosodiphenylamine 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U22-Oxybis(1-Chloropropane) nr nr nr nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UPentachlorophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 UPhenanthrene 045 J 15 J 18 J nr nr 045 J 056 J 032 J 042 J 044 J nr 067 22Phenol 43 22 U 22 U nr nr 14 U 018 J 25 U 16 U 15 U nr 044 U 85 UPyrene 092 U 504 24 nr nr 098 J 16 J 12 J 14 J 2 nr 14 J 68124-Trichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U245-Trichlorophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 36 U nr 11 U 21 U246-Trichlorophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U

2Not Reported

mgKg

5 5 1 1 1 1 1 1 1 and 277 79 87 79Not reported Not reported 78 28 63

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Page 3 of 25

AR103821

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 1320 7850 10650 nr nr 8250 7570 7730 6530 7290 nr 3710 5100Antimony 37 U 83 U 38 U 279 25 95 U 187 U 272 U 139 U 114 U nr 44 U 103 UArsenic 7 U 14 U 12 J 98 1 16 129 71 B 53 B 22 nr 27 39 BBarium 122 U 295 U 159 nr nr 264 148 B 761 B 683 B 69 B nr 786 142Beryllium 3 U 8 U 3 U 05 05 U 14 B 16 B 069 B 097 B 13 B nr 035 B 12 BCadmium 3 U 118 364 01 U 01 U 056 U 94 24 B 09 B 11 B nr 026 U 15 BCalcium 1320 J 11320 27120 nr nr 30900 17700 7650 B 42700 4880 nr 49300 6120Chromium 6 U 130 261 26 903 541 193 149 116 125 nr 359 845Chromium III nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 31 U 74 U 31 U nr nr 118 B 147 B 154 B 139 B 138 B nr 57 B 125 BCopper 16 U 105 224 911 15 179 298 153 120 126 nr 533 135Iron 6580 23180 47720 nr nr 62200 59300 32900 23100 24800 nr 26300 18700Lead 353 J 231 J 232 J 279 205 716 436 180 142 150 nr 872 155Magnesium 526 J 3310 J 8040 nr nr 7940 4110 B 3550 B 22500 2920 B nr 12100 2930 BManganese 108 J 311 J 993 J nr nr 468 509 330 265 247 nr 343 153Mercury 02 U 241 091 0325 01 U 083 21 12 13 15 nr 023 11Nickel 25 U 913 291 48 106 583 743 102 839 885 nr 297 648Potassium 3100 U 7400 U 1330 J nr nr 826 B 1020 B 1220 B 1030 B 1000 B nr 437 B 672 BSelenium 4 U 7 U 4 U 005 U 005 U 42 8 75 B 53 26 B nr 27 62Silver 7 U 15 U 7 U 0211 0263 14 U 28 U 4 U 21 U 24 B nr 065 U 51 BSodium 3100 U 2800 J 667 J nr nr 598 B 3130 B 5160 B 3520 B 2860 B nr 289 B 2030 BThallium 7 U 14 U 7 U 12 11 073 U 15 U 21 U 1 U 093 U nr 033 U 077 UTin 31 U 59 U 25 U nr nr nr nr nr nr nr nr nr nrVanadium 31 U 74 U 364 nr nr 585 133 398 B 234 B 246 B nr 249 16 BZinc 396 643 490 280 459 1220 1620 601 443 479 nr 161 467Cyanide 14 U 30 U 14 U nr nr 14 U 3 U 4 U 22 U 18 U nr 067 U 16 U

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr

Not Reported282

mgKg

Not Reported Not Reported 1 1 1 1 1 1 1652 839 884 775668 278 323 871 725 256 691

mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Page 4 of 25

AR103822

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 0023 U 009 U 4855 U U U 0036 U 048 B 00014 J 00017 J 00036 J 000064 J 00024 U 00041 Jalpha-BHC 0023 U 009 U 4855 U U U 0036 U 0016 U 0013 U 00081 U 00077 U 00039 U 00024 U 000032 Jbeta-BHC 0023 U 009 U 4855 U U U 0036 U 11 0013 U 00081 U 00077 U 00039 U 00024 U 00045 Udelta-BHC 0023 U 009 U 4855 U U U 0036 U 0023 J 000053 J 00012 J 00077 U 00039 U 00024 U 00045 Ugamma-BHC (Lindane) 0023 U 009 U 4855 U U U 0036 U 0016 U 000083 J 00081 U 00077 U 00039 U 00024 U 00045 Ualpha-Chlordane nr nr nr U U 0036 U 0016 U 0013 U 00081 U 00077 U 0015 00024 U 00045 Ugamma-Chlordane nr nr nr U U 0036 U 0056 J 0013 U 00024 JB 00077 U 000094 J 00024 U 00078 BChlordane total 0225 U 09 U 4855 U U U nr nr nr nr nr nr nr nr44-DDD 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0016 U 0015 U 00075 U 000091 J 00088 U44-DDE 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 00045 J 0007 J 00012 J 00046 U 00088 U44-DDT 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0016 U 0015 U 00075 U 00046 U 00088 UDieldrin 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0003 J 0015 U 00044 J 00046 U 00048 JEndosulfan I 0023 U 009 U 4855 U U U 0036 U 038 0013 U 00024 J 00077 U 00039 U 00024 U 00012 JEndosulfan II 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 00099 JB 0015 U 00075 U 00046 U 00088 UEndosulfan sulfate 0045 U 018 U 971 U U U 007 U 001 J 0025 U 0016 U 0016 U 00075 U 00046 U 00039 JEndrin 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0002 J 0015 U 00075 U 00046 U 00088 UEndrin aldehyde 0045 U 018 U 971 U U U 007 U 013 J 0025 U 0016 U 0015 U 00075 U 00046 U 00088 UEndrin ketone 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0016 U 0015 U 00075 U 00046 U 00088 UHeptachlor 0023 U 009 U 4855 U U U 0036 U 0016 U 0013 U 00081 U 00077 U 00039 U 00024 U 00045 UHeptachlor epoxide 0023 U 009 U 4855 U U U 0036 U 0016 U 0013 U 00081 U 00077 U 00039 U 000044 J 00044 JMethoxychlor 0045 U 018 U 971 U U U 036 U 016 U 013 U 0081 U 0077 U 0039 U 0024 U 024Toxaphene 045 U 18 U 971 U U U 36 U 16 U 13 U 081 U 077 U 039 U 024 U 045 UAroclor-1016 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1221 02 U 09 U 486 U U U 14 U 06 U 05 U 03 U 03 U 02 U 01 U 02 UAroclor-1232 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1242 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1248 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1254 045 U 2948 267899 18 1 11 15 028 016 U 018 0075 U 042 0088 UAroclor-1260 05 U 18 U 971 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UTotal PCBs 29 2679 180 10 110 150 03 02 04

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

5Not reported

mgKg

Not Reported Not Reported10 1000 5 200 1 1 1 1 1 1

77 37 87 79Not Reported Not Reported 78 56 28 63mgKgmgKg mgKg mgKg mgKgmgKg mgKg

Incomplete lab report No Other Pesticides or PCBs detected

Incomplete lab report No Other Pesticides or PCBs detected

mgKg mgKg mgKg

Page 5 of 25

AR103823

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag042 B 0091 U 0024 U 015 B 0067 B 032 B 0031 U 055 B 0023 B nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0052 J 0091 U 0024 U 0047 0016 U 0043 0031 U 0084 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 001 J 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

yes yes yes yesyes no no no noyes yes yes yes noyes yes yes yes yes no no noyes yes yes yes no no

yes yes yes yesyes yes yes yes yesyes yes yes yes yesno no no no no no no nono no no no no no

yes yes yes yesyes PCBs PCBs PCBs PCBsyes yes yes yes PCBsno no no no no no no nono no no no no no

1 1 1 11 1 1 1 188 89 58 73 3037 75 68 78

mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg

Page 6 of 25

AR103824

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

013 B 0097 B 0033 B 004 B 0029 B 024 B 0068 B 012 B 0026 B nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

mgKg30

mgKg mgKg mgKg37 75 68 78

11 1 1 11 1 188 89 58 731

mgKg mgKg mgKgmgKg mgKg

Page 7 of 25

AR103825

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag28 U 29 U 08 U 034 J 051 U 14 U 1 U 13 J 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 13 0057 J 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 82 033 J 027 J 1 U 15 U 0061 J nr nr nr nr nr28 U 29 U 08 U 12 029 J 018 J 1 U 15 U 047 U nr nr nr nr nr047 J 29 U 0094 J 17 J 05 J 03 J 016 J 025 J 047 U nr nr nr nr nr28 U 29 U 08 U 65 024 J 015 J 1 U 15 U 047 U nr nr nr nr nr

047 J 29 U 0094 J 17 J 05 J 03 J 016 J 025 J 047 U nr nr nr nr nr047 J 052 J 018 J 12 U 033 J 019 J 017 J 24 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 021 J 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 76 036 J 017 J 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 26 0081 J 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 013 J 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr051 J 036 J 011 J 029 J 007 J 14 U 012 J 037 J 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 048 J 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr085 J 094 J 0089 J 45 038 J 03 J 017 J 098 J 013 JB nr nr nr nr nr029 J 29 U 08 U 88 034 J 015 J 012 J 025 J 0083 J nr nr nr nr nr28 U 29 U 08 U 03 J 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 94 022 J 014 J 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 038 J 031 J 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 12 U 0056 J 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 73 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 34 024 J 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 3 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr045 J 04 J 08 U 96 049 J 021 J 014 J 03 J 0076 J nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr

1 1 1 and 2 11 1 1 1 188 89 58 73 3037 75 68 78

mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg

Page 8 of 25

AR103826

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag10000 12300 10100 14600 4860 13600 7020 9930 4250 4950 5485 51605 9971 4162248 U 256 U 85 U 145 U 116 B 138 U 83 U 162 U 42 U 10 U 10 U 10 U 10 U 10 U77 B 5 B 5 B 135 107 127 4 B 175 2 B 05 U 34 63 93 52

895 B 128 B 511 B 172 173 125 B 636 B 477 185 B 665 392 523 12 6928 B 35 B 14 B 3 B 041 B 2 B 078 B 13 B 058 B 025 U 025 U 025 U 025 U 023731 B 33 B 05 U 26 B 35 19 B 049 U 45 B 025 U 256 251 387 97 11

8250 5980 B 2890 12300 26800 7450 1980 B 29200 365 B 41085 15657 12506 14912 1037992 964 199 384 145 706 164 772 199 96 28 325 11 22nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

307 B 643 B 131 B 509 74 B 25 B 94 B 14 B 35 B 19 42 36 39 44478 106 497 225 696 146 27 428 105 176 347 865 74 38

28200 18400 12900 24000 46400 33900 13000 48700 8130 10765 12170 15649 38012 1418288 178 129 394 839 364 683 1060 165 694 466 417 264 276

5080 B 4140 B 1550 B 5120 6220 4660 861 B 8820 791 B 8394 5175 7521 4738 464400 291 195 731 641 258 166 331 618 169 339 361 448 52215 088 045 16 22 088 032 15 021 02 U 031 12 U 029 02 U846 114 162 B 504 545 511 122 B 819 117 72 217 183 76 18

1260 B 1080 B 581 B 788 B 401 B 1110 B 330 B 1180 B 330 B 641 572 344 356 333126 56 27 51 161 191 46 55 12 B 125 05 U 24 089 05 U55 B 38 U 13 U 21 U 4 2 U 12 U 37 B 062 U 05 U 085 075 16 05 U

4690 B 6770 833 B 969 B 169 B 249 B 161 B 651 B 496 B 142 379 215 358 1702 U 2 U 069 U 11 U 036 U 095 U 065 U 13 U 032 U 10 U 10 U 10 U 10 U 10 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr34 B 392 B 251 B 407 B 357 573 23 B 104 114 B 94 76 92 83 93874 934 182 851 1270 1050 147 2360 538 160 159 354 902 2244 U 4 U 13 U 21 U 075 U 19 U 12 U 25 U 065 U nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

1 1 1 11 Not Reported1 1 1 1876 879 633 774 231 Not Reported357 758 591 815

mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKgmgKg

Page 9 of 25

AR103827

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00073 J 0015 U 0004 U 00062 U 0016 J 00012 J 000051 J 0015 000042 J nr nr nr nr nr0014 U 000035 J 000021 J 00062 U 0053 U 000028 J 00053 U 00077 U 000012 J nr nr nr nr nr0014 U 0015 U 000092 J 0027 J 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr0014 U 0015 U 00018 J 000075 J 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr

00027 J 0015 U 0004 U 00062 U 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr0014 U 0015 U 0004 U 0078 J 0053 U 00051 J 000069 JB 00077 U 00024 U nr nr nr nr nr

00062 JB 00038 J 0004 U 00062 U 0017 JB 0021 00064 B 00077 U 000032 J nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 04

0027 U 00059 J 00078 U 0012 U 01 U 0013 U 001 U 0015 U 00047 U nr nr nr nr nr0027 U 00098 J 00027 J 0012 U 01 U 00027 J 001 U 0015 U 000066 J nr nr nr nr nr0027 U 003 U 00078 U 0012 U 28 0013 U 001 U 0015 U 00047 U nr nr nr nr nr0027 U 00012 J 00078 U 0012 U 00078 J 0013 U 000035 J 0015 U 0000077 J nr nr nr nr nr0014 U 0015 U 0004 U 00062 U 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr0027 U 003 U 00078 U 0027 J 01 U 00028 J 00065 JB 0015 U 000046 J nr nr nr nr nr0027 U 00053 J 00046 J 0012 U 0061 J 00093 J 001 U 00045 J 000033 J nr nr nr nr nr00012 J 003 U 00078 U 0012 U 00078 J 0013 U 000035 J 0015 U 00047 U nr nr nr nr nr0027 U 00016 J 00078 U 023 J 027 00022 J 001 U 0015 U 00047 U nr nr nr nr nr0027 U 003 U 00078 U 0012 U 001 U 0013 U 001 U 00072 J 00047 U nr nr nr nr nr0014 U 00013 JB 000015 JB 00062 U 0053 U 00068 U 0011 B 00077 U 000029 JB nr nr nr nr nr0014 U 0015 U 0004 U 0021 J 0053 U 000081 J 00053 U 00077 U 00024 U nr nr nr nr nr014 U 00016 J 00012 J 0002 J 008 J 0068 U 0053 U 0016 J 0024 U nr nr nr nr nr14 U 15 U 04 U 062 U 53 U 068 U 053 U 077 U 024 U nr nr nr nr nr03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U06 U 06 U 02 U 03 U 21 U 03 U 02 U 03 U 01 U03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U027 U 03 U 022 31 1 U 014 01 U 11 0047 U03 03 U 01 U 48 56 02 J 01 U 02 U 00 U 01 01 03 03 01 03 02 79 56 03 11 01 01 03 03 01

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

1 1 1 20 and 2001 1 1 1 188 89 58 73 3037 75 68 78

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

mgKg mgKg

Page 10 of 25

AR103828

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 04075 U 04028 U 0319 U 0283 U 033 U 02588 U 03155 U 04435 U 011 B nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 01725 01576 01096 01115 01402 01112 01384 01166 0009 J nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr 0007 J nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

yes yes yes yesno yes yes no no noyes yes yes noyes yes yes yesno yes no yes yes yesyes yes yes yes

yes yes yes yesno yes yes yes yes yesyes yes yes nono no no nono no no no no nono no no no

yes yes yes yesPCBs only yes yes yes yes yesyes yes yes PCBs onlyno no no nono no no no no nono no no no

EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported Not Reported 1

NA NA NA NA NA 79mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 11 of 25

AR103829

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0015 JB nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 04454 04694 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 01522 01006 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 0163 U 01611 U 01276 U 01132 U 0132 U 01035 U 01261 U 01774 U 0048 U nr nr nr nr

79NA NA NANA NANot Reported Not Reported 1Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported

EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 12 of 25

AR103830

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 012 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr 22 U nr 033 U 033 U 033 Unr U U 22 U nr nr nr nrnr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 013 J nr 033 U 033 U 033 Unr U U 011 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 018 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U nr nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 014 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U nr nr nr nr nrnr U U nr nr nr nr nrnr U U nr nr nr nr nrnr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 078 U 078 U 078 Unr U U 22 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 13 nr 033 U 033 U 033 Unr U U 014 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr B B 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U nr nr nr nr nrnr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 083 U 083 U 083 Unr U U 55 U nr 083 U 083 U 083 Unr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr nr nr nrnr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 015 J nr 033 U 033 U 033 Unr U U nr nr nr nr nrnr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 U

EPA 608 EPA 625 EPA 625 EPA 625EPA 608 EPA 8070 EPA 8070 EPA 8070EPA 625 EPA 625 EPA 625not reported 1 1 11

NA 31 21 5685mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Page 13 of 25

AR103831

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 3936 1898 5071 4818 4394 3343 7962 6474 9100 nr 7246 9494 11591nr 25 U 25 U 25 U 25 U 25 U 25 U 26 25 U 114 J nr 25 U 25 U 25 Unr 357 14 125 U 125 U 125 U 125 U 7943 136 163 nr 25 U 39 2 Unr 71 262 269 26 264 429 358 48 249 J nr 23 25 34nr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 049 J nr 1 U 1 U 1 Unr 54 5 U 5 U 5 U 5 U 5 U 41 5 U 081 JB nr 1 U 1 U 1 Unr 5535 1079 1270 1650 1663 4254 8753 890 12100 nr 72 10 73nr 255 143 441 343 337 271 552 783 965 J nr 19 18 34nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 5 U 5 U 544 532 508 515 733 584 148 J nr 46 41 89nr 67 285 355 257 295 34 281 489 169 J nr 94 71 20nr 18970 5225 446 4435 444 4179 103796 543 47300 nr 11739 12658 17045nr 186 265 448 324 338 427 109 564 182 nr 13 10 27nr 1979 713 1328 1236 1372 1717 2926 1392 4940 J nr 1261 1152 2727nr 202 118 1164 1282 1266 127 361 1926 1410 nr 112 59 341nr 132 0198 025 0211 0254 0223 U 0219 0369 086 nr 01 U 01 U 01 Unr 17 824 277 209 209 19 493 343 657 J nr 11 87 30nr 386 612 706 675 557 403 229 831 987 J nr 609 633 1795nr 261 125 U 125 U 125 U 125 U 125 U 611 125 U 74 J nr 5 U 5 U 5 Unr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 33 J nr 2 U 2 U 2 Unr 1212 935 1130 919 975 719 1490 1081 2890 J nr 1739 1519 2159nr 125 U 125 U 125 U 125 U 125 U 125 U 125 U 125 U 2 U nr 2 U 2 U 2 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 185 833 1294 1098 106 879 117 1389 672 J nr 16 22 20nr 308 745 1492 1186 1778 1163 531 194 655 nr 42 23 107nr 0072 U 002 U 0051 U 0089 U 0071 U 0082 U 003 U 0062 U 05 U nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 2008 EPA 2008 EPA 2008Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported 1 1 1Not Reported Not Reported Not Reported

21 56Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported 31mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg

Page 14 of 25

AR103832

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0017 J nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr nr nr nr nr nr nr nr nr 0011 U nr 0004 U 0004 U 0004 Unr nr nr nr nr nr nr nr nr 0011 U nr 0004 U 0004 U 0004 Unr 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U nr nr nr nr nrnr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 00063 J nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 001 U 002 U 002 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 00097 J nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 011 U nr 0004 U 0004 U 0004 Unr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 11 U nr 01 U 01 U 01 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 05 U 01 U 00 U 00 U 00 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U01 U nr nr nr nr nr nr nr nr 02 U 01 U 00 U 00 U 00 U

0334 79 144 025 U 21 025 U 025 U 2 025 U 2 0401 0013 U 0013 U 0013 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U03 79 144 21 20 20 04

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 8081 EPA 8081 EPA 8081 EPA 8081EPA 8081 EPA 80818082 EPA 80818082 EPA 80818082EPA 8081 EPA 8081 EPA 8081Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported 1 1 1Not Reported Not Reported 1

Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported Not Reported NA 31 21 56mgKg mgKg mgKg mgKg mgL mgKg mgKg mgKgmgKg mgKg mgKg mgKg

Page 15 of 25

AR103833

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSDMT-8 (0-20) SDMT-8 (20-30)SDMT-7 (0-20) SDMT-7 (20-30)SDMT-2 (20-30) SDMT-3 (0-4) SDMT-3 (4-10) SDMT-4 (0-20) SDMT-4 (20-30) SDMT-5 (0-20) SDMT-5 (20-30) SDMT-9 (0-20)SDMT-6 (0-4) SDMT-6 (4-7)

121801 121901 121901 121801121801 121801 121801 121801 121801 121901121801 121901 121901 121801ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT

Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment SedimentSolid Solid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

033 U 033 U 033 U 033 U 033 U 033 U 022 J 0116 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 022 J 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 0184 J 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 0186 J 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 026 J 013 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 044 J 0256 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 0154 J 0147 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 042 J 0256 J 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U

EPA 8070 EPA 8070 EPA 8070 EPA 8070EPA 8070 EPA 8070 EPA 8070 EPA 8070 EPA 8070 EPA 8070EPA 8070 EPA 8070 EPA 8070 EPA 80701 1 1 1 11 1 1 1 11 1 1 1

22 57 50 5751 23 23 62 50 5425 64 52 57mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg

Page 18 of 25

AR103834

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSDMT-8 (0-20) SDMT-8 (20-30)SDMT-7 (0-20) SDMT-7 (20-30)SDMT-2 (20-30) SDMT-3 (0-4) SDMT-3 (4-10) SDMT-4 (0-20) SDMT-4 (20-30) SDMT-5 (0-20) SDMT-5 (20-30) SDMT-9 (0-20)SDMT-6 (0-4) SDMT-6 (4-7)

121801 121901 121901 121801121801 121801 121801 121801 121801 121901121801 121901 121901 121801ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT

Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment SedimentSolid Solid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag6327 7922 9610 6053 4231 9070 5200 4186 3333 11111 12500 6977 8800 760925 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 5 U 25 U2 U 2 U 29 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 4 U 2 U

17 18 19 42 12 23 54 16 13 33 27 35 24 331 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U 1 U1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U 1 U78 10 39 221 33 114 130 172 117 100 27 212 32 20413 16 17 68 85 17 24 10 12 31 19 53 15 39nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr53 36 42 10 36 63 82 79 55 10 79 81 5 U 7210 65 66 55 33 13 34 65 10 24 10 42 5 U 37

11837 12987 19481 16316 16667 16047 12800 8372 6800 20556 13750 13256 22000 1434884 91 83 68 46 12 60 84 11 23 88 53 5 U 41

1755 1078 1130 2526 1038 2186 1480 1907 1467 3056 2708 2326 2800 2391198 69 66 250 113 212 184 149 99 242 292 202 196 21701 U 01 U 01 U 01 U 01 U 01 U 08 01 U 01 U 01 U 01 U 01 U 01 U 01 U10 77 84 37 58 14 26 84 91 20 15 37 12 28

939 701 727 1105 500 1233 760 814 627 1694 1958 1093 2000 12835 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 4 U 2 U

2449 1091 1208 4474 1282 3023 2200 4186 2400 4167 2500 3256 2600 28262 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 4 U 2 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr11 19 22 12 83 13 9 91 76 28 23 16 24 1831 26 27 258 15 42 170 26 36 83 50 195 30 130nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 2008 EPA 2008 EPA 2008 EPA 2008EPA 2008 EPA 2008 EPA 2008 EPA 2008 EPA 2008 EPA 2008EPA 2008 EPA 2008 EPA 2008 EPA 20081 1 1 1 11 1 1 1 11 1 1 1

51 23 23 62 22 57 50 57 57 50 5425 64 52mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg

Page 19 of 25

AR103835

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSDMT-8 (0-20) SDMT-8 (20-30)SDMT-7 (0-20) SDMT-7 (20-30)SDMT-2 (20-30) SDMT-3 (0-4) SDMT-3 (4-10) SDMT-4 (0-20) SDMT-4 (20-30) SDMT-5 (0-20) SDMT-5 (20-30) SDMT-9 (0-20)SDMT-6 (0-4) SDMT-6 (4-7)

121801 121901 121901 121801121801 121801 121801 121801 121801 121901121801 121901 121901 121801ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT

Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment SedimentSolid Solid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0005 U 0005 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U

nr nr nr nr nr nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 002 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U002 U 002 U 002 U 002 U 002 U 002 U 0004 U 002 U 002 U 002 U 002 U 002 U 002 U 002 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U

0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082EPA 80818082 EPA 80818082 EPA 80818082 EPA 808180821 1 1 1 11 1 1 1 11 1 1 1

57 25 64 5251 23 23 62 22 57 57 50 5450mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg

Page 20 of 25

AR103836

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer DumpSauer Dump Sauer DumpSDMT-A (0-4) SDMT-B (20-30)SDMT-9 (20-30)

121901 121801 121801ENSAT ENSAT ENSAT

Sediment Sediment SedimentSolid Solid Solid

Dup Of SDMT-6 Dup Of SDMT-4

DG-SD03-05 DG-SD04-05 DG-SD05-05C7A110284003 C7A130138002 C7A130138001

010907

Solid

010907 010907

DG-SD01-05 DG-SD02-05C7A110284001 C7A110284002

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpDG-SD07-05 DG-SD08-05 DG-SD09-05

C7A130138003 C7A130138005 C7A130138006

Sauer Dump

C7A130138007DG-SD06-05

011007 011007 011007 011107 011107 011207Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Sediment Sediment Sediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nrnr nr nrnr nr nr

033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U078 U 078 U 078 U083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

033 U 033 U 033 U083 U 083 U 083 U083 U 083 U 083 U083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 U083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

083 U 083 U 083 U033 U 033 U 033 U

EPA 8070 EPA 8070 EPA 80701 1 162 32 26

mgKg mgKg mgKg

Page 23 of 25

AR103837

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer DumpSauer Dump Sauer DumpSDMT-A (0-4) SDMT-B (20-30)SDMT-9 (20-30)

121901 121801 121801ENSAT ENSAT ENSAT

Sediment Sediment SedimentSolid Solid Solid

Dup Of SDMT-6 Dup Of SDMT-4

DG-SD03-05 DG-SD04-05 DG-SD05-05C7A110284003 C7A130138002 C7A130138001

010907

Solid

010907 010907

DG-SD01-05 DG-SD02-05C7A110284001 C7A110284002

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpDG-SD07-05 DG-SD08-05 DG-SD09-05

C7A130138003 C7A130138005 C7A130138006

Sauer Dump

C7A130138007DG-SD06-05

011007 011007 011007 011107 011107 011207Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Sediment Sediment Sediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag10263 2059 7973 nr nr nr nr nr nr nr nr nr

5 U 25 U 25 U nr nr nr nr nr nr nr nr nr4 U 2 U 28 nr nr nr nr nr nr nr nr nr26 15 15 nr nr nr nr nr nr nr nr nr2 U 1 U 1 U nr nr nr nr nr nr nr nr nr2 U 1 U 1 U nr nr nr nr nr nr nr nr nr

218 46 22 nr nr nr nr nr nr nr nr nr21 18 12 nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr5 U 25 U 92 nr nr nr nr nr nr nr nr nr5 U 19 15 nr nr nr nr nr nr nr nr nr

15263 4265 37838 nr nr nr nr nr nr nr nr nr5 U 22 6 75 471 370 488 4800 595 150 101 301

3158 691 1216 nr nr nr nr nr nr nr nr nr221 84 203 nr nr nr nr nr nr nr nr nr01 U 01 U 01 U nr nr nr nr nr nr nr nr nr16 87 15 nr nr nr nr nr nr nr nr nr

1789 338 770 nr nr nr nr nr nr nr nr nr5 U 5 U 5 U nr nr nr nr nr nr nr nr nr4 U 2 U 2 U nr nr nr nr nr nr nr nr nr

3158 1618 1622 nr nr nr nr nr nr nr nr nr2 U 2 U 2 U nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr24 5 14 nr nr nr nr nr nr nr nr nr42 65 42 nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flagnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nr

EPA 2008 EPA 2008 EPA 20081 1 1

3262 26mgKg mgKg mgKg

SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B5 1 1 1 1

SW846 6010B SW846 6010B SW846 6010B SW846 6010B1 1 1 1

mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg

Page 24 of 25

AR103838

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer DumpSauer Dump Sauer DumpSDMT-A (0-4) SDMT-B (20-30)SDMT-9 (20-30)

121901 121801 121801ENSAT ENSAT ENSAT

Sediment Sediment SedimentSolid Solid Solid

Dup Of SDMT-6 Dup Of SDMT-4

DG-SD03-05 DG-SD04-05 DG-SD05-05C7A110284003 C7A130138002 C7A130138001

010907

Solid

010907 010907

DG-SD01-05 DG-SD02-05C7A110284001 C7A110284002

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpDG-SD07-05 DG-SD08-05 DG-SD09-05

C7A130138003 C7A130138005 C7A130138006

Sauer Dump

C7A130138007DG-SD06-05

011007 011007 011007 011107 011107 011207Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Sediment Sediment Sediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr002 U 002 U 002 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr01 U 01 U 01 U nr nr nr nr nr nr nr nr nr00 U 00 U 00 U 0048 U 0031 U 13 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U

0013 U 0013 U 0013 U 0048 U 0031 U 091 33 058 15 11 0047 U 0065 U00 U 00 U 00 U 0048 U 0086 14 04 U 051 1 UJ 0075 U 0047 U 0032 J

0048 U 0086 361 33 109 15 11 0032

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00000026 BJ 000026 B 0029 B 00096 U 00025 BJQ 0003 QBJ 000071 QBJ 0000012 QBJ 000014 B0000052 QBJ 00049 BQ 062 BQ 00034 QBJ 0015 QB 017 QB 00079 QB 0000069 QBJ 00011 QB0000078 Q B J 0017 BQ 22 B 0012 QBJ 0069 BQ 099 BQ 0039 BQ 0000058 BJQ 00041 BQ0000097 BJQ 0066 BQ 23 BQ 031 QB 023 BQ 6 BQ 016 BQ 0000066 BJQ 0012 QB0000092 BJQ 013 QB 13 QB 14 BQ 054 BQ 18 BQ 038 QB 0000077 Q B J 0023 QB0000076 QBJ 0084 BQ 18 QB 09 BQ 041 BQ 11 BQ 028 BQ 0000064 Q B J 0018 QB0000021 BJQ 0024 BQ 12 BQ 016 QB 016 BQ 21 BQ 007 B 0000027 BJQ 0006 BQ0000029 U 00063 QB 035 B 0034 QB 0059 B 038 QB 0017 QB 0000028 U 00017 B0000029 U 00014 005 00073 J 0011 008 00057 0000028 U 0000680000029 U 000026 00073 Q 00029 QJ 0011 0012 J 0004 0000028 U 000052

00004186 033412 98563 28296 15075 38735 096431 0000373 006724

EPA 80818082 EPA 80818082 EPA 808180821 1 1

2662 32mgKg mgKg mgKg

SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 80820 5 0 0 0

SW846 8082 SW846 8082 SW846 8082 SW846 80820 0 0 2

mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkg

EPA-22 1668A EPA-22 1668AEPA-22 1668A EPA-22 1668A EPA-22 1668A EPA-22 1668A10 10

EPA-22 1668A10 10 10 1 1

EPA-22 1668A EPA-22 1668A

mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg

1 5

mgkg

Page 25 of 25

AR103839

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved Metals

PCBsPesticides

Other Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 00104 B 0025 U 0025 U 00109 B 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UAcetonitrile nr nr nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 0005 U 00041 J 0005 U 00042 J 0005 U 0001 U 0001 U 0001 U 0001 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nr nr nr nrBromobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrBromochloromethaneChlorobromomethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UBromoform 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UBromomethaneMethyl bromide 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U2-Butanone (Methyl Ethyl Ketone) nr nr nr nr 001 U 001 U 001 U 001 U 005 U 005 U 005 U 005 Un-Butylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrsec-Butylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrtert-Butylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide nr nr nr nr 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 UCarbon Tetrachloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UChlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0003 0001 UChloroethaneEthyl chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0006 0001 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UChloromethaneMethyl chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UChloroprene nr nr nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr4-Chlorotoluene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 UCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U12-Dibromoethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U12-Dichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U13-Dichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U14-Dichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UDichlorodifluoromethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U11-Dichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U12-Dichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U11-Dichloroethene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Ucis-12-Dichloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Utrans-12-Dichloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U12-Dichloroethene (Total) nr nr nr nr nr nr nr nr nr nr nr nrDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U13-Dichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr22-Dichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloropropene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrcis-13-Dichloropropene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Utrans-13-Dichloropropene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

yes yes yes yes yes yes yes yes yes yes yesno no no noyes yes yes no yes yes yes yesno no no noCN only CN only CN only no yes yes yes yesno no no noyes yes yes no yes yes yes yes

no no no noyes yes yes no yes yes yes yesno no no nono no no no no no no no

EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 82601 1 1 1Not Reported Not Reported Not Reported Not Reported

NA NA NA NANA NA NA NA NA NA NA NAmgL mgL mgL mgLmgL mgL mgL mgL mgL mgL mgL mgL

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 1 of 15

AR103840

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 0005 U 00049 J 00039 J 00049 J 0005 U 0001 U 0001 U 0001 U 0001 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nr nr nr nrIsopropylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0002 J 0005 U 0005 U 0001 U 0001 U 0003 0001 Up-Isopropyl Toluene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 UMethylcyclohexane nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 U1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 001 U 001 U 001 UNaphthalene 0005 U 0005 U 0005 U 0005 U 002 00049 J 0019 0005 U nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nr nr nr nrn-Propylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrStyrene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U1112-Tetrachloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UTetrachloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 0005 U 0005 U 0005 U 0013 00031 J 0013 0005 U 0001 U 0001 U 0001 U 0001 U123-Trichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr124-Trichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U111-Trichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U112-Trichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UTrichloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 UTrichlorofluoromethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U123-Trichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene 0005 U 0005 U 0005 U 0005 U 0011 00039 J 0012 0005 U nr nr nr nr135-Trimethylbenzene 0005 U 0005 U 0005 U 0005 U 00069 0005 U 00073 0005 U nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate nr nr nr nr nr nr nr nr nr nr nr nrVinyl chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U m+p-Xylenes nr nr nr nr 0021 00047 J 0021 0005 U nr nr nr nro-Xylene nr nr nr nr 0012 00026 J 0012 0005 U nr nr nr nrXylenes (Total) 001 U 001 U 001 U 001 U nr nr nr nr 0015 U 0015 U 0015 U 0015 U

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

EPA 8260 EPA 8260 EPA 8260Not Reported

EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260Not Reported Not Reported Not Reported 1 1 1 1

NA NA NA NA NA NA NA NA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 2 of 15

AR103841

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 001 U 0001 J 001 U 001 UAcenaphthylene 001 U 001 U 001 U 001 UAcetophenone 001 U 001 U 001 U 001 UAnthracene 001 U 001 U 001 U 001 UAtrazine 001 U 001 U 001 U 001 UBenzaldehyde nr nr nr nrBenzo(a)Anthracene 001 U 001 U 001 U 001 UBenzo(a)Pyrene 001 U 001 U 001 U 001 UBenzo(b)fluoranthene 001 U 001 U 001 U 001 UBenzo(ghi)Perylene 001 U 001 U 001 U 001 UBenzo(k)fluoranthene 001 U 001 U 001 U 001 UBenzylbutylphthalateButylbenzylphthalate 001 U 001 U 001 U 001 U11-Biphenyl 001 U 001 U 001 U 001 U4-Bromophenyl-phenylether 001 U 001 U 001 U 001 UCaprolactam 001 U 001 U 001 U 001 UCarbazole 001 U 001 U 001 U 001 U4-Chloroaniline 001 U 001 U 001 U 001 Ubis(2-Chloroethoxy)Methane 001 U 001 U 001 U 001 Ubis(2-Chloroethyl)Ether 001 U 001 U 001 U 001 Ubis(2-Chloroisopropyl)Ether 001 U 001 U 001 U 001 U4-Chloro-3-Methylphenol 001 U 001 U 001 U 001 U2-Chloronaphthalene 001 U 001 U 001 U 001 U2-Chlorophenol 001 U 001 U 001 U 001 U4-Chlorophenyl-phenylether 001 U 001 U 001 U 001 UChrysene 001 U 001 U 001 U 001 UDibenzo(ah)Anthracene 001 U 001 U 001 U 001 UDibenzofuran 001 U 001 U 001 U 001 U12-Dichlorobenzene nr nr nr nr13-Dichlorobenzene nr nr nr nr14-Dichlorobenzene nr nr nr nr33-Dichlorobenzidine 001 U 001 U 001 U 001 U24-Dichlorophenol 001 U 001 U 001 U 001 UDiethylphthalate 004442 B 001 U 001 U 001 U 001 U24-Dimethylphenol 001 U 001 U 001 U 001 UDimethyl Phthalate 001 U 001 U 001 U 001 UDi-n-Butylphthalate 001 U 001 U 001 U 001 U46-Dinitro-2-Methylphenol 0025 U 0025 U 0025 U 0025 U24-Dinitrophenol 0025 U 0025 U 0025 U 0025 U24-Dinitrotoluene 001 U 001 U 001 U 001 U26-Dinitrotoluene 001 U 001 U 001 U 001 UDi-n-Octyl Phthalate 001 U 001 U 001 U 001 Ubis(2-Ethylhexyl)Phthalate 001443 001 U 001 U 001 U 001 UFluoranthene 001 U 001 U 001 U 001 UFluorene 001 U 001 U 001 U 001 UHexachlorobenzene 001 U 001 U 001 U 001 UHexachlorobutadiene 001 U 001 U 001 U 001 UHexachlorocyclopentadiene 001 U 001 U 001 U 001 UHexachloroethane 001 U 001 U 001 U 001 UIndeno(123-cd)Pyrene 001 U 001 U 001 U 001 UIsophorone 001 U 001 U 001 U 001 U2-Methylnaphthalene 001 U 0003 J 001 U 001 U2-Methylphenol 001 U 001 U 001 U 001 U4-Methylphenol 001 U 001 U 001 U 001 UMethylMercury nr nr nr nrNaphthalene 001 U 0004 J 001 U 001 U2-Nitroaniline 001 U 001 U 001 U 001 U3-Nitroaniline 0025 U 0025 U 0025 U 0025 U4-Nitroaniline 001 U 001 U 001 U 001 UNitrobenzene 001 U 001 U 001 U 001 U2-Nitrophenol 001 U 001 U 001 U 001 U4-Nitrophenol 0025 U 0025 U 0025 U 0025 UN-Nitroso-Di-n-Propylamine 001 U 001 U 001 U 001 UN-Nitrosodiphenylamine 001 U 001 U 001 U 001 U22-Oxybis(1-Chloropropane) nr nr nr nrPentachlorophenol 0025 U 0025 U 0025 U 0025 UPhenanthrene 001 U 001 U 001 U 001 UPhenol 001 U 001 U 001 U 001 UPyrene 001 U 001 U 001 U 001 U124-Trichlorobenzene nr nr nr nr245-Trichlorophenol 0025 U 0025 U 0025 U 0025 U246-Trichlorophenol 001 U 001 U 001 U 001 U

EPA 625 EPA 625 EPA 625 EPA 8270 EPA 8270 EPA 8270 EPA 8270

NA NA NA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL

Incomplete lab report No other SVOCs detected

Incomplete lab report No other SVOCs detected

Incomplete lab report No SVOCs detected

Page 3 of 15

AR103842

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr 016 021 018 033Antimony nr nr nr nr nr nr nr nr 0006 U 0006 U 0006 U 0006 UArsenic nr nr nr nr nr nr nr nr 0035 0025 U 0025 U 0064Barium nr nr nr nr nr nr nr nr 053 054 063 024Beryllium nr nr nr nr nr nr nr nr 0004 U 0004 U 0004 U 0004 UCadmium nr nr nr nr nr nr nr nr 0005 U 0005 U 0005 U 0005 UCalcium nr nr nr nr nr nr nr nr 246 128 103 39Chromium nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UChromium III nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UCopper nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UIron nr nr nr nr nr nr nr nr 09 158 113 599Lead nr nr nr nr nr nr nr nr 001 U 001 U 001 U 001 UMagnesium nr nr nr nr nr nr nr nr 100 112 100 53Manganese nr nr nr nr nr nr nr nr 04 022 04 099Mercury nr nr nr nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UNickel nr nr nr nr nr nr nr nr 0064 0032 0025 U 0025 UPotassium nr nr nr nr nr nr nr nr 38 37 42 5 USelenium nr nr nr nr nr nr nr nr 0005 U 0005 U 0005 U 0005 USilver nr nr nr nr nr nr nr nr 001 U 001 U 001 U 001 USodium nr nr nr nr nr nr nr nr 790 520 105 560Thallium nr nr nr nr nr nr nr nr 0002 U 0002 U 0002 U 0002 UTin nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UZinc nr nr nr nr nr nr nr nr 0031 005 0025 0025 UCyanide 0005 U 0005 U 0005 U nr nr nr nr nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 05 U 05 U 05 U nr nr nr nr nr 0025 U 0025 U 0025 U 0041Antimony 005 U 005 U 005 U nr nr nr nr nr 0006 U 0006 U 0006 U 0006 UArsenic 005 U 005 U 005 U nr nr nr nr nr 0035 0025 U 0025 U 0039Barium 05 U 05 U 05 U nr nr nr nr nr 059 047 048 014Beryllium 005 U 005 U 005 U nr nr nr nr nr 0004 U 0004 U 0004 U 0004 UCadmium 01 U 01 U 01 U nr nr nr nr nr 0005 U 0005 U 0005 U 0005 UCalcium 1 U 127 246 nr nr nr nr nr 244 136 101 42Chromium 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UCobalt 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UCopper 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UIron 05 U 05 U 05 U nr nr nr nr nr 06 01 U 105 12Lead 025 U 025 U 025 U nr nr nr nr nr 001 U 001 U 001 U 001 UMagnesium 1 U 831 266 nr nr nr nr nr 1000 119 100 59Manganese 005 U 01 005 U nr nr nr nr nr 02 023 039 1Mercury 0002 U 0002 U 0002 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UNickel 01 U 01 U 01 U nr nr nr nr nr 0061 0035 0025 0025 UPotassium 1 U 702 53 nr nr nr nr nr 48 48 40 5 USelenium 005 U 005 U 005 U nr nr nr nr nr 0005 U 0005 U 0005 U 0005 USilver 005 U 005 U 005 U nr nr nr nr nr 001 U 001 U 001 U 001 USodium 1 U 412 851 nr nr nr nr nr 790 590 107 620Thallium 0025 U 0025 U 0025 U nr nr nr nr nr 0002 U 0002 U 0002 U 0002 UVanadium 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UZinc 005 U 005 U 005 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 U

EPA 2008 EPA 2008 EPA 2008 EPA 2008

NA NA NANA NA NA NA NA NAmgL mgL mgLmgL mgL mgL mgL mgL mgL

EPA 2008 EPA 2008 EPA 2008 EPA 2008Not Reported Not Reported Not Reported

NA NA NA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL

Page 4 of 15

AR103843

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ualpha-BHC 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ubeta-BHC 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Udelta-BHC 00005 U 00005 U 000008 U 000008 U 000008 U 000008 Ugamma-BHC (Lindane) 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ualpha-Chlordane 00001 U nr nr nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ugamma-Chlordane nr nr nr nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UChlordane total nr 00005 U 00005 U nr nr nr nr nr nr nr nr nr44-DDD 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 U44-DDE 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 U44-DDT 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UDieldrin 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndosulfan I 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndosulfan II 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndosulfan sulfate 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndrin 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndrin aldehyde 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndrin ketone 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UHeptachlor 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UHeptachlor epoxide 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UMethoxychlor 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UToxaphene 005 U 0005 U 0005 U nr nr nr nr nr 0002 U 0002 U 0002 U 0002 UAroclor-1016 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1221 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1232 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1242 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1248 nr nr nr nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1254 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1260 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UTotal PCBs

Other Analytes PCB HomologuesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

EPA 608 EPA 608 EPA 608 EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082Not reported Not Reported Not Reported

NA NA NANA NA NA NA NA NA NAmgL mgL mgLmgL mgL mgL mgL mgL mgL mgL

Page 5 of 15

AR103844

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved Metals

PCBsPesticides

Other Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag001 U 001 U 005 U 005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U005 U 005 U 005 U 005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

yes yes yes yesyes yes yes yesyes yes yes yesyes yes yes yes

yes yes yes yesno no no no

EPA 8260 EPA 8260 EPA 8260 EPA 8260

NA NA NA NAmgL mgL mgL mgL

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous

no nono

Aqueous

no no

no

nono no no

no

nono no no no

no

yes - PCB Congeners only yes - PCB Congeners only

nono no

yes - PCB Congeners only yes - PCB Congeners onlyyes - PCB Congeners only yes - PCB Congeners only

nono no no no nono no

no no no noyes - PCB Congeners only

no no no

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

nonono

Yes - Lead Only

Yes - PCBs onlyYes - PCBs homologues

Page 6 of 15

AR103845

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 Unr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0002 JBnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 Unr nr nr nr

001 U 0002 005 U 005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nr0001 U 0001 U 0005 U 0005 U

nr nr nr nr0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nr

0015 U 0015 U 0075 U 0075 U

EPA 8260 EPA 8260 EPA 8260 EPA 8260

NA NANA NAmgL mgL mgL mgL

Page 7 of 15

AR103846

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flag001 U 0001 J 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nr

001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U0025 U 0025 U 0025 U 0025 U0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nr

001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nr

0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 001 U 001 Unr nr nr nr

0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U

EPA 8270 EPA 8270 EPA 8270 EPA 8270

NA NA NA NAmgL mgL mgL mgL

Page 8 of 15

AR103847

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag0048 039 0005 U 0005 U nr0006 U 0006 U 0006 U 0006 U nr0025 U 0035 0005 U 0005 U nr032 056 0005 U 0011 nr

0004 U 0004 U 0004 U 0004 U nr0005 U 0005 U 0001 U 0001 U nr131 242 5 U 5 U nr

0025 U 0025 U 0005 U 0005 U nrnr nr nr nr nrnr nr nr nr nr

0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0005 U 0005 U nr

27 11 01 U 01 U nr0012 0015 0002 U 0002 U nr

82 95 5 U 5 U nr091 038 0005 U 0005 U nr

00005 U 00005 U 00005 U 00005 U nr0034 0061 0005 U 0005 U nr

15 36 5 U 5 U nr0005 U 0005 U 0005 U 0005 U nr001 U 001 U 0002 U 0013 nr85 764 5 U 5 U nr

0002 U 0002 U 0002 U 0002 U nrnr nr nr nr nr

0025 U 0025 U 0005 U 0005 U nr0025 U 0038 0008 0009 nr

nr

Result Flag Result Flag Result Flag Result Flag Result Flag0025 U 0025 U 0017 0007 nr0006 U 0006 U 0006 U 0006 U nr0025 U 0033 0005 U 0005 U nr02 057 0005 U 0005 U nr

0004 U 0004 U 0004 U 0004 U nr0005 U 0005 U 0001 U 0001 U nr126 246 5 U 5 U nr

0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0005 U 0005 U nr01 U 01 U 01 U 01 U nr001 U 001 U 0002 U 0002 U 3 U82 97 5 U 5 U nr

087 027 0005 U 0005 U nr00005 U 00005 U 00005 U 00005 U nr003 0069 0005 U 0005 U nr15 40 5 U 5 U nr

0005 U 0005 U 0005 U 0005 U nr001 U 001 U 0002 U 0002 U nr85 789 5 U 5 U nr

0002 U 0002 U 0002 U 0002 U nr0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0008 001 nr

EPA 2008 EPA 2008 EPA 2008 EPA 2008

NA NA NA NAmgL mgL mgL mgL

EPA 2008 EPA 2008 EPA 2008 EPA 2008

NA NA NA NAmgL mgL mgL mgL

SW846 6010B1

ugL

SW846 6010B1

ugL

Page 9 of 15

AR103848

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other Analytes PCB HomologuesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr

nr nr nr nr nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr0002 U 0002 U 0002 U 0002 U nr00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag3090 88300 39300 5430 1970 286 183 U 63 BQ

33300 192000 270000 133000 8130 1270 107 91 BQ45700 85900 207000 164000 9860 1320 63 26 BQ65800 32700 143000 40800 7930 447 412 U 63 BQ83400 10200 24100 3730 2170 235 133 046 QB64900 5370 9300 1400 1640 392 774 0069 QJB30300 2000 2750 361 836 107 903 004 U8230 607 376 716 182 686 U 741 U 004 U1520 119 298 821 272 55 U 567 U 004 U135 162 56 376 U 126 451 U 431 U 004 U

336000 417000 697000 349000 32800 4060 117 186829

pgLpgL pgL pgL pgL pgL pgL

NANA NA NA NA NA NA NANA NA NA NA NA NA

EPA 1668A EPA 1668A EPA 1668A EPA 1668A EPA 1668A EPA 1668A EPA 1668A

ngL

5EPA-22 1668A

EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082

NA NA NA NAmgL mgL mgL mgL

SW846 80821

ugL

Page 10 of 15

AR103849

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

MW-4-FSauer Dump Sauer Dump

C7B130171004

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-2-T MW-1R-F MW-1R-T MW-3-F MW-3-T MW-4-T MW-5-F MW-5-T

C7B080261001 C7B090142002 C7B090142001 C7B090142004 C7B090142003 C7B130171003 C7B130171002

021207020807 020807

C7B130171001

020707 020807 020807 021207 021207 021207Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous

Malcolm PirnieGroundwater Groundwater

Aqueous AqueousGroundwater

Malcolm PirnieGroundwater Groundwater GroundwaterGroundwater Groundwater Groundwater

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr3 U nr 3 U nr 17 J nr 26 J nr 57nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr 3 U nr 3 U nr 3 U nr 3 U nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

1SW846 6010B SW846 6010B

1 1SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B

1 1 1 1 1 1

ugL ugL ugL ugL ugL ugLugL ugL ugL

1SW846 6010B SW846 6010B

1 1SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B

1 1 1 1 1 1

ugL ugL ugL ugL ugL ugLugL ugL ugL

Page 14 of 15

AR103850

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other Analytes PCB HomologuesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

MW-4-FSauer Dump Sauer Dump

C7B130171004

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-2-T MW-1R-F MW-1R-T MW-3-F MW-3-T MW-4-T MW-5-F MW-5-T

C7B080261001 C7B090142002 C7B090142001 C7B090142004 C7B090142003 C7B130171003 C7B130171002

021207020807 020807

C7B130171001

020707 020807 020807 021207 021207 021207Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous

Malcolm PirnieGroundwater Groundwater

Aqueous AqueousGroundwater

Malcolm PirnieGroundwater Groundwater GroundwaterGroundwater Groundwater Groundwater

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr1 U 1 U 1 U 095 U 099 U 099 U 084 J 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U

084

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag80 B 21 B 41 B 44 B 45 B 2 BQ 063 BQ 013 BQ 026 BQ

130 BQ 14 QB 37 BQ 25 QB 34 BQ 140 QB 430 B 051 QB 14 QB50 B 13 B 81 B 20 BQ 40 BQ 95 B 880 BQ 034 QB 17 BQ19 BQ 33 QB 63 BQ 13 BQ 35 BQ 13 BQ 350 BQ 032 QB 26 QB23 QB 09 QB 74 QB 12 QB 58 QB 021 QB 21 BQ 012 QJB 056 QB065 QB 031 QB 50 BQ 029 QB 24 QB 0035 JQB 65 QB 0086 QJB 047 QB017 QB 005 QJB 16 QB 0081 JQB 093 QB 0038 U 14 QB 0031 QJB 022 QB0051 JQ 004 U 42 Q 0038 U 023 Q 0038 U 032 Q 0039 U 0028 J001 J 004 U 093 0038 U 0018 QJ 0038 U 0055 Q 0039 U 0039 U004 U 001 QJ 011 0038 U 0038 U 0038 U 00075 QJ 0039 U 0039 U

282181 3367 33034 63971 122878 250245 16899125 1537 7238

ngLngLngLngL

10EPA-22 1668AEPA-22 1668A

1

ngLngL ngL

1EPA-22 1668AEPA-22 1668A

1

ngL

10EPA-22 1668A

ngL

1EPA-22 1668AEPA-22 1668A

5

1SW846 8082 SW846 8082

1 1SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082

ugL ugL

1 1 1 1 1 1

ugL ugL ugLugLugL ugL ugL

Page 15 of 15

AR103851

APPENDIX B-1

REMOVAL TECHNOLOGY COST ESTIMATES ALTERNATIVE 2

Surface Cap Excavation and Off-Site Disposal

AR103852

Appendix B-1Surface Cap Excavation and Off-Site Disposal Cost Estimate

Alternative 2

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceMobilizationWork Plans Lump Sum 1 50000$ 50000$ 50000$ Engineering JudgmentEquip Contractor Mobilization Lump Sum 1 40000$ 40000$ 40000$ Engineering JudgmentInstall Runoff Controls(silt fence and turbidity curtain) Linear Feet 1195 079$ 944$ 1282$ 0227007041000 Means (2005)Site Survey Acre 409 350000$ 14307$ 14307$ 02 21 1309 0100 Means (2008)

Site PreparationRemove surface debris transport to disposal

Non-hazardous disposal ton 50 8784$ 4392$ 5963$ 33 19 7269 Means (2005)Hazardous disposal Cubic Yard 296 39400$ 116568$ 158276$ Vendor Quote

Clearing and Grubbing (non-river areas) Acre 409 476000$ 19457$ 19457$ Engineering JudgmentNon-hazardous disposal of cleared vegetation ton 598 5000$ 29876$ 29876$ Engineering Judgment

Off-site disposal of grubbed vegetation (assume PRG not met) tons 372 39400$ 146759$ 199269$ Vendor Quote

Site ExcavationSoil (and Sediment Outside of Back River) Excavation

Parcel 425 Cubic Yard 1642 187$ 3078$ 4179$ 0222002380260 Means (2005)Cost Bkp tab for qtyResidential Parcels 137 295464 503532 Cubic Yard 4612 187$ 8645$ 11738$ 0222002380260 Means (2005)

Wetlands Cubic Yard 7740 1290$ 99843$ 123805$ 023154240950 Means (2006)Back River Sampling to assess need for excavation Each 1 10563$ 10563$ 10563$ See Back R Sed Samplng tab

Excavation Screening (all areas)Screening samples at 2-foot excavation depth Each 27 37000$ 9990$ 9990$ Sampling Cost tabScreening samples at 4-foot excavation depth Each 11 37000$ 4070$ 4070$ Sampling Cost tab

Transport soil and sediment to staging areas Cubic Yard 13994 368$ 51496$ 51496$ 31 23 2318 0020 Means (2008)Confirmation Sampling cy per sample [ replaced 20acre excavated] Each 50 37000$ 18500$ 18500$ Sampling Cost tabTransport soil and sediment to capping area Cubic Yard 6176 368$ 22727$ 22727$ 31 23 2318 0020 Means (2008)Verification Screening (all areas) based on grid network

Parcel 425 Each 58 37000$ 21460$ 21460$ Sampling Cost tabResidential Parcels 137 295464 503532 Each 143 37000$ 52910$ 52910$ Sampling Cost tab

Wetlands Each 42 37000$ 15540$ 15540$ Sampling Cost tabDust Suppression Square Foot 125816 001$ 1258$ 1708$ 33 08 0585 Means (2005) water by truckSoil Characterization (TCLP 1 per 200 CY) Each 9 13000$ 1170$ 1170$ HGL Langley R Bird Treatment of water from sediments - (Assume 50water content sediments Gallons 781560 001$ 4924$ 7145$ EPA FRTR (2002)

OFF-Site DisposalHazardous Waste Landfill Disposal (PCB 50 -500 ppm) ton 2803 39400$ 1104227$ 1104227$ Vendor Quote

Incineration (PCB gt500 ppm) ton 475 78000$ 370396$ 370396$ Vendor Quote

Soil Cover Alternative 2

Sauer Dump Site Sheet 1 of 3 HydroGeoLogic Inc February 2009

AR103853

Appendix B-1Surface Cap Excavation and Off-Site Disposal Cost Estimate

Alternative 2

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Cap PlacementCap Layers (material and placement no grading)

Top Cover Cubic Yard 2630 2237$ 58830$ 79879$ 18 05 0301 Means (2005)Burrow Barrier Cubic Yard 3481 2000$ 69614$ 69614$ Engineering JudgmentDrainage Layer Cubic Yard 1315 1055$ 13872$ 18835$ 17 03 0430 Means (2005)Low Permeability Barrier - Clay Cubic Yard 4542 2156$ 97934$ 132975$ 33 08 0507 Means (2005)

Cobble Perimeter Boundary Cubic Yard 1148 2000$ 22959$ 22959$ Engineering JudgmentGrading - TSCA Cap Square Yard 19938 1700$ 338939$ 338939$ 31 22 1610 3300 Means (2008)

Initial Grading after Clear and Grub Before Cap Placement Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)Top Cover Grading Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)

Well Abandonment Each 1 7360$ 7360$ 7360$ Engineering Judgment Cost Bkp tabMonitoring Well Modifications Each 7 4000$ 28000$ 28000$ Engineering Judgment

Cap CompletionSeeding and mulching for Vegetation Cover Square Foot 106509 005$ 5219$ 7086$ 0293003080400 Means (2005)Access Controls - Fence Modification Linear Feet 1613 200$ 3226$ 3226$ Engineering JudgmentAccess Controls - Signs Linear Feet 1613 020$ 323$ 323$ 1 sign 500 ft of perimeter $100 installed = $020ftDemobilization Lump Sum 1 20000$ 20000$ 20000$ Engineering JudgmentWetlands Restoration Acres 120 100000$ 119934$ 134465$ Engineering Judgment

Site Grading Square Yard 5805 322$ 18691$ 23177$ 023101000010 Means (2006)Clean Fill Cubic Yard 7740 697$ 53946$ 73248$ 17 03 0422 Means (2005)

Compaction Cubic Yard 7740 300$ 23219$ 31527$ Engineering JudgmentResidential Area Site Restoration

Top Cover Cubic Yard 1996 2237$ 44644$ 60618$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 5672 697$ 39537$ 53683$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 2145 322$ 6908$ 8566$ 023101000010 Means (2006)

Seeding and mulching for Vegetation Cover Square Foot 19307 025$ 4730$ 6422$ 0293003080400 Means (2005) 5 (EJ) for residential area

Subtotal 3085524$ 3565464$ Project SupportEngineering Design 12 of Subtotal 370263$ 415123$ Past Project ExperienceProject Management 10 of Subtotal 308552$ 345935$ Past Project ExperienceConstruction Management 8 of Subtotal 246842$ 276749$ Past Project ExperienceContingencies 15 of Subtotal 462829$ 518904$ EPA 540-R-98-045Back River Excavation Contingency 50 of est cost 250000$ 125000$ Engineering JudgmentCompletion Reports Lump Sum 1 6000000$ 60000$ 60000$ Past Project Experience

Subtotal 1698486$ 1741711$ TOTAL INSTALLED COST 4784010$ 5307175$

Sauer Dump Site Sheet 2 of 3 HydroGeoLogic Inc February 2009

AR103854

Appendix B-1Surface Cap Excavation and Off-Site Disposal Cost Estimate

Alternative 2

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Operation and MaintenancePeriodic Inspection (4yr engr 20 hr ea) Hrs 80 10000$ 8000$ 8000$ Engineering JudgmentBurrowing Animal Control allowance Each 1 250000$ 2500$ 2500$ Engineering JudgmentHydroseeding repair veg cover (10yr) Acre 024 53762$ 131$ 188$ 180504028102002 Means (2004)Fence Repairs (10) Linear Feet 161 1500$ 2419$ 3466$ 17020701 Means + $4ft material allowanceCap RepairsFillRegradingCompaction (5 8 in fills) Cubic Yard 656 1116$ 7319$ 10484$ 17 03 0429 Means (2004)GroundwaterSurface Water Monitoring 1yr 2 ppl 24 hr each hrs 48 10000$ 4800$ 4800$ Engineering JudgmentGroundwaterSurface Water Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentReporting (1yr) Hrs 160 10000$ 16000$ 16000$ Engineering Judgment

Total Annual OampM Cost 43169$ 47438$

Present Value of OampM 663621$ 729236$

TOTAL PROJECT COST 6036410$

Sauer Dump Site Sheet 3 of 3 HydroGeoLogic Inc February 2009

AR103855

APPENDIX B-2

REMOVAL TECHNOLOGY COST ESTIMATES ALTERNATIVE 3

Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment

AR103856

Appendix B-2Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 3

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceMobilizationWork Plans Lump Sum 1 100000$ 100000$ 100000$ Engineering JudgmentEquip Contractor Mobilization Lump Sum 1 75000$ 75000$ 75000$ Engineering JudgmentInstall Runoff Controls(silt fence and turbidity curtain) Linear Feet 1195 079$ 944$ 1282$ 0227007041000 Means (2005)Permitting (NPDES Permit etc) Lump Sum 1 50000$ 50000$ 50000$ Engineering JudgmentSite Survey Acre 409 350000$ 14307$ 14307$ 02 21 1309 0100 Means (2008)System Startup Shakedown Lump Sum 1 25000$ 25000$ 25000$ Engineering Judgment

Site Preparation and ExcavationRemove surface debris transport to disposal

Non-hazardous disposal ton 50 8784$ 4392$ 5963$ 33 19 7269 Means (2005)Hazardous disposal Cubic Yard 296 39400$ 116568$ 158276$ Vendor Quote

Clearing and Grubbing (non-river areas) Acre 467 476000$ 22218$ 22218$ Engineering JudgmentNon-hazardous disposal of cleared vegetation ton 598 5000$ 29876$ 29876$ Engineering Judgment

Off-site disposal of grubbed vegetation (assume PRG not met) tons 372 39400$ 146759$ 199269$ Vendor QuoteSoil (and Sediment Outside of Back River) Excavation

Parcel 425 Cubic Yard 8058 187$ 15105$ 20510$ 0222002380260 Means (2005)Cost Bkp tab for qtyResidential Parcels 137 295464 503532 Cubic Yard 4612 187$ 8645$ 11738$ 0222002380260 Means (2005)

Wetlands Cubic Yard 7740 1290$ 99843$ 123805$ 023154240950 Means (2006)Back River Sampling to assess need for excavation Each 1 $10563 10563$ 10563$ See Back R Sed Samplng tab

Excavation Screening (all areas)Screening samples at 2-foot excavation depth Each 27 37000$ 9990$ 9990$ Sampling Cost tabScreening samples at 4-foot excavation depth Each 11 37000$ 4070$ 4070$ Sampling Cost tab

Transport soil and sediment to staging areas Cubic Yard 20410 368$ 75109$ 75109$ 31 23 2318 0020 Means (2008)Confirmation Sampling cy per sample [ replaced 20acre excavated] Each 82 37000$ 30340$ 30340$ Sampling Cost tabTransport soil and sediment to capping area Cubic Yard 6176 368$ 22727$ 22727$ 31 23 2318 0020 Means (2008)Verification Screening (all areas) based on grid network

Parcel 425 Each 81 37000$ 29970$ 29970$ Sampling Cost tabResidential Parcels 137 295464 503532 Each 143 37000$ 52910$ 52910$ Sampling Cost tab

Wetlands Each 42 37000$ 15540$ 15540$ Sampling Cost tabDust Suppression Square Foot 125816 001$ 1258$ 1708$ 33 08 0585 Means (2005) water by truckSoil Characterization (TCLP 1 per 200 CY) Each 41 13000$ 5330$ 5330$ HGL Langley R Bird Treatment of water from sediments - (Assume 50water content sediments) Gallons 781560 001$ 4924$ 7145$ EPA FRTR (2002)

OFF-Site DisposalHazardous Waste Landfill Disposal (PCB 50 -500 ppm) ton 2803 39400$ 1104227$ 1104227$ Vendor Quote

Incineration (PCB gt500 ppm) ton 475 78000$ 370396$ 370396$ Vendor QuoteNon-hazardous disposal (PCB lt 50 ppm) ton 10808 8784$ 949350$ 1289027$ 33 19 7269 Means (2005)

Alternative 3 Excavation Off-site Disposal and GW Treatment

Sauer Dump Site Sheet 1 of 4 HydroGeoLogic Inc February 2009

AR103857

Appendix B-2Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 3

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceCap PlacementCap Layers (material and placement no grading)

Top Cover Cubic Yard 2630 2237$ 58830$ 79879$ 18 05 0301 Means (2005)Burrow Barrier Cubic Yard 3481 2000$ 69614$ 69614$ Engineering JudgmentDrainage Layer Cubic Yard 1315 1055$ 13872$ 18835$ 17 03 0430 Means (2005)Low Permeability Barrier - Clay Cubic Yard 4542 2156$ 97934$ 132975$ 33 08 0507 Means (2005)

Cobble Perimeter Boundary Cubic Yard 1148 2000$ 22959$ 22959$ Engineering JudgmentGrading - TSCA Cap Square Yard 19938 1700$ 338946$ 338946$ 31 22 1610 3300 Means (2008)

Initial Grading after Clear and Grub Before Cap Placement Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)TopCover Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)

Well Abandonment Each 1 7360$ 7360$ 7360$ Engineering Judgment Cost Bkp tabMonitoring Well Modifications Each 7 4000$ 28000$ 28000$ Engineering Judgment

Cap CompletionSeeding and mulching for Vegetation Cover Square Foot 106509 005$ 5219$ 7086$ 0293003080400 Means (2005)Access Controls - Fence Modification Linear Feet 1613 200$ 3226$ 3226$ Engineering JudgmentAccess Controls - Signs Linear Feet 1613 020$ 323$ 323$ 1 sign 500 ft of perimeter $100 installed = $020ftDemobilization Lump Sum 1 20000$ 20000$ 20000$ Engineering Judgment

Residential Area Site RestorationTop Cover Cubic Yard 1996 2237$ 44644$ 60618$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 5672 697$ 39537$ 53683$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 2145 322$ 6908$ 8566$ 023101000010 Means (2006)Seeding and mulching for Vegetation Cover Square Foot 19307 025$ 4730$ 6422$ 0293003080400 Means (2005) 5 (EJ) for residential area

Wetlands Restoration Acres 120 100000$ 119934$ 134465$ Engineering JudgmentSite Grading Square Yard 5805 322$ 18691$ 23177$ 023101000010 Means (2006)

Clean Fill Cubic Yard 7740 697$ 53946$ 73248$ 17 03 0422 Means (2005)Compaction Cubic Yard 7740 300$ 23219$ 31527$ Engineering Judgment

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater RedirectionEach 1 16988800$ 169888$ 169888$ See Groundwater Collection and Treatment Sheet

Subtotal 4619355$ 5251600$ Project SupportEngineering Design 12 of Subtotal 554323$ 621483$ Past Project ExperienceProject Management 10 of Subtotal 461936$ 517903$ Past Project ExperienceConstruction Management 8 of Subtotal 369548$ 414321$ Past Project ExperienceContingencies 15 of Subtotal 692903$ 776853$ EPA 540-R-98-045Back River Excavation Contingency 50 of est cost 250000$ 125000$ Engineering JudgmentCompletion Reports Lump Sum 1 6000000$ 60000$ 60000$ Past Project Experience

Subtotal 2388710$ 2515560$ TOTAL INSTALLED COST 7008065$ 7767160$

Sauer Dump Site Sheet 2 of 4 HydroGeoLogic Inc February 2009

AR103858

Appendix B-2Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 3

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Annual OampM Costs Operation and Maintenance Groundwater Collection and Treatment SystemPeriodic Inspection (2yr engr 8 hr ea) hrs 16 10000$ 1600$ 1600$ Engineering JudgmentSystem Operations Reporting (1yr) hrs 48 10000$ 4800$ 4800$ Engineering JudgmentSystem NPDES Monitoring 4yr 2 ppl 16 hr each hrs 128 10000$ 12800$ 12800$ Engineering JudgmentNPDES Monitoring Report 4yr 24 hrreport hrs 96 10000$ 9600$ 9600$ Engineering JudgmentAnnual Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentPart-time operator check system 1week $60hr 6 hrwk hrs 312 6000$ 18720$ 18720$ Engineering JudgmentFilter Bag Replacement 1xwk each 156 1000$ 1560$ 1560$ Engineering JudgmentFilter Bag Disposal drum 2 drumsyr TSCA incineration drum 2 100000$ 2000$ 2000$ Engineering JudgmentGAC annual profiling fees changeout 1 vesselyr each 1 25000$ 250$ 250$ vendor quoteGAC changeoutregeneration 1xyr each 2 143248$ 2865$ 2865$ 33 13 2005 13274 1215 Means (2004)Utilities - 2-14 hp pumps 2-12hp pumps add 40 for heat lighting controls kW hr 32751 008$ 2620$ 2620$ Engineering JudgementUtilities - phone mo 12 7500$ 900$ 900$ Engineering Judgment Operation and Maintenance Compacted Soil Cover and MonitoringPeriodic Inspection (4yr engr 20 hr ea) Hrs 80 10000$ 8000$ 8000$ Engineering JudgmentBurrowing Animal Control allowance Each 1 250000$ 2500$ 2500$ Engineering JudgmentHydroseeding repair veg cover (10yr) Acre 024 53762$ 131$ 188$ 180504028102002 Means (2004)Fence Repairs (10) Linear Feet 161 1500$ 2419$ 3466$ 17020701 Means + $4ft material allowanceCap RepairsFillRegradingCompaction (5 8 in fills) Cubic Yard 656 1116$ 7319$ 10484$ 17 03 0429 Means (2004)GroundwaterSurface Water Monitoring 1yr 2 ppl 24 hr each hrs 48 10000$ 4800$ 4800$ Engineering JudgmentGroundwaterSurface Water Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentReporting (1yr) Hrs 160 10000$ 16000$ 16000$ Engineering Judgment

Total Annual OampM Cost 118885$ 123153$

Present Value of Annual OampM (7 discount factor 30 yrs) 1475243$ 1528209$

Periodic OampM Costs Remove Interceptor Trench Gravel Replace 15 yrs into ProjectInterceptor Trench Excavation overburden and gravel bank cubic yd 1496 247$ 3696$ 3696$ 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 748 3286$ 24584$ 24584$ 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 748 103$ 771$ 771$ 02310 120 3000 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 748 336$ 2514$ 2514$ 02315 120 3320 Means (2006)Non-hazardous disposal of excavated soilgravel nonhazardous ton 748 8784$ 65717$ 65717$ 33 19 7269 Means (2005)

Present Value Periodic OampM Costs 97282$ 97282$

Total Present Value all OampM Costs 1572525$ 1625491$

TOTAL PROJECT COST 9392652$

Sauer Dump Site Sheet 3 of 4 HydroGeoLogic Inc February 2009

AR103859

Appendix B-2Excavation Offsite Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost 2009 Cost Reference

Interceptor Trench Sump Construction(2 trenches)Interceptor Trench Excavation bank cubic yd 3741 247$ $9231 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 1496 3286$ $49170 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 1496 103$ $1540 02310 120 3000 Means (2006)Purchase prep set groundwater extraction sumps Each 2 100000$ $2000 Engineering Judgment previous experiencePurchase install 4 PVC perforated drain pipe ft 1000 1057$ $10572 33 26 09 02709 2100 Means (2004)Haul dump place excess trench waste soil at cap area Cubic Yard 1496 224$ $3358 02315 110 1900 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 2244 336$ $7542 02315 120 3320 Means (2006)Extraction pumps - Each 2 30000$ $600 pump supplier web site incl freight 14 hp motorPump Controls panels connections Each 2 150000$ $3000 Engineering Judgment

Pump System Piping (treatment building located at south end of Parcel 425)Sumps to treatment building trench header lines 48 deep lineal ft 1200 110$ $1324 02315 620 2250 Means (2006) install 15 sch 80 PVC headers lineal ft 1200 420$ $5037 33 26 0427 Means (2004)

Treatment SystemTreatment Building 20 x 20 sq ft 400 7936$ $31744 median $sf factory Means (2006)Piping Allowance each 1 250000$ $2500 Engineering JudgementSurge Tank 2500 gal poly tank each 2 200000$ $4000 online pricing added freight estimateTransfer Pumps 30 gpm 12 hp centrifugal each 2 40000$ $800 pump web site pricing plus freight allowancePrefilter basket strainers each 2 120000$ $2400 Engineering JudgementGAC Adsorbers 2 in series 200 lb ea initial each 2 143248$ $2865 33 13 2005 13274 1215 Means (2004)Valving Flowmeters Controls Electrical each 1 1000000$ $10000 Engineering Judgement trench discharge line 48 deep lineal ft 200 110$ $221 02315 620 2250 Means (2006)Discharge Piping 4 sch 80 PVC lineal ft 200 992$ $1984 33 26 0427 Means (2004)Utilities - electrical phone service to site install poles li each 1 2000000$ $20000 allowance engineering estimate

TOTAL INSTALLED COST $169888

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater Redirection

Sauer Dump Site Sheet 4 of 4 HydroGeoLogic Inc February 2009

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APPENDIX B-3

REMOVAL TECHNOLOGY COST ESTIMATES ALTERNATIVE 4

Excavation Off-Site Disposal and Groundwater Collection and Treatment

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Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceMobilizationWork Plans Lump Sum 1 100000$ 100000$ 100000$ Engineering JudgmentEquip Contractor Mobilization Lump Sum 1 75000$ 75000$ 75000$ Engineering JudgmentInstall Runoff Controls(silt fence and turbidity curtain) Linear Feet 1195 079$ 944$ 1282$ 0227007041000 Means (2005)Permitting (NPDES Permit etc) Lump Sum 1 50000$ 50000$ 50000$ Engineering JudgmentSite Survey Acre 409 350000$ 14307$ 14307$ 02 21 1309 0100 Means (2008)System Startup Shakedown Lump Sum 1 25000$ 25000$ 25000$ Engineering Judgment

Site Preparation and ExcavationRemove surface debris transport to disposal

Non-hazardous disposal ton 50 8784$ 4392$ 5963$ 33 19 7269 Means (2005)Hazardous disposal Cubic Yard 296 39400$ 116568$ 158276$ Vendor Quote

Clearing and Grubbing (non-river areas) Acre 467 476000$ 22218$ 22218$ Engineering JudgmentNon-hazardous disposal of cleared vegetation ton 598 5000$ 29899$ 29899$ Engineering Judgment

Off-site disposal of grubbed vegetation (assume PRG not met) ton 372 39400$ 146759$ 199269$ Vendor QuoteSoil (and Sediment Outside of Back River) Excavation

Parcel 425 Cubic Yard 12154 187$ 22783$ 30935$ 0222002380260 Means (2005)Cost Bkp tab for qtyResidential Parcels 137 295464 503532 Cubic Yard 4612 187$ 8645$ 11738$ 0222002380260 Means (2005)

Wetlands Cubic Yard 7740 1290$ 99843$ 123805$ 023154240950 Means (2006)Back River Sampling to assess need for excavation Each 1 $10563 10563$ 10563$ See Back R Sed Samplng tab

Excavation Screening (all areas)Screening samples at 2-foot excavation depth Each 44 37000$ 16280$ 16280$ Sampling Cost tabScreening samples at 4-foot excavation depth Each 18 37000$ 6660$ 6660$ Sampling Cost tab

Transport soil and sediment to staging areas Cubic Yard 24506 368$ 90181$ 90181$ 31 23 2318 0020 Means (2008)Confirmation Sampling cy per sample [ replaced 20acre excavated] Each 99 37000$ 36630$ 36630$ Sampling Cost tabVerification Screening (all areas) based on grid network

Parcel 425 Each 88 37000$ 32560$ 32560$ Sampling Cost tabResidential Parcels 137 295464 503532 Each 143 37000$ 52910$ 52910$ Sampling Cost tab

Wetlands Each 42 37000$ 15540$ 15540$ Sampling Cost tabDust Suppression Square Foot 125816 001$ 1258$ 1708$ 33 08 0585 Means (2005) water by truckSoil Characterization (TCLP 1 per 200 CY) Each 122 13000$ 15860$ 15860$ HGL Langley R Bird Treatment of water from sediments - (Assume 50water content sediments) Gallons 781560 001$ 4924$ 7145$ EPA FRTR (2002)

Alternative 4 Excavation Off-site Disposal and GW Treatment

Sauer Dump Site Sheet 1 of 4 HydroGeoLogic Inc February 2009

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Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

OFF-Site DisposalHazardous Waste Landfill Disposal (PCB 50 -500 ppm) ton 2781 39400$ 1095545$ 1095545$ Vendor Quote

Incineration (PCB gt500 ppm) ton 475 78000$ 370396$ 370396$ Vendor QuoteNon-hazardous disposal (PCB lt 50 ppm) ton 38404 8784$ 3373451$ 4580470$ 33 19 7269 Means (2005)

Well Abandonment Each 1 7360$ 7360$ 7360$ Engineering Judgment Cost Bkp tabMonitoring Well Modifications Each 7 4000$ 28000$ 28000$ Engineering Judgment

Residential Area Site RestorationTop Cover Cubic Yard 1996 2237$ 44644$ 60618$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 5672 697$ 39537$ 53683$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 2145 322$ 6908$ 8566$ 023101000010 Means (2006)

Parcel 425 RestorationTop Cover Cubic Yard 921 2237$ 20613$ 27988$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 11233 697$ 78292$ 106305$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 5529 322$ 17803$ 22076$ 023101000010 Means (2006)

Seeding and mulching for Vegetation Cover Square Foot 69066 025$ 16921$ 22975$ 0293003080400 Means (2005) 5 (EJ) for residential area

Wetlands Restoration Acres 120 100000$ 119934$ 134465$ Engineering JudgmentSite Grading Square Yard 5805 322$ 18691$ 23177$ 023101000010 Means (2006)

Clean Fill Cubic Yard 7740 697$ 53946$ 73248$ 17 03 0422 Means (2005)Compaction Cubic Yard 7740 300$ 23219$ 31527$ Engineering Judgment

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater RedirectionEach 1 16988800$ 169888$ 169888$ See Groundwater Collection and Treatment Sheet

Subtotal 6484872$ 7950017$ Project SupportEngineering Design 12 of Subtotal 778185$ 872468$ Past Project ExperienceProject Management 10 of Subtotal 648487$ 727056$ Past Project ExperienceConstruction Management 8 of Subtotal 518790$ 581645$ Past Project ExperienceContingencies 15 of Subtotal 972731$ 1090584$ EPA 540-R-98-045Back River Excavation Contingency 50 of est cost 250000$ 125000$ Engineering JudgmentCompletion Reports Lump Sum 1 6000000$ 60000$ 60000$ Past Project Experience

Subtotal 3228193$ 3456753$

TOTAL INSTALLED COST 9713065$ 11406769$

Sauer Dump Site Sheet 2 of 4 HydroGeoLogic Inc February 2009

AR103863

Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Annual OampM Costs Operation and Maintenance Groundwater Collection and Treatment SystemPeriodic Inspection (2yr engr 8 hr ea) hrs 16 10000$ 1600$ 1600$ Engineering JudgmentSystem Operations Reporting (1yr) hrs 48 10000$ 4800$ 4800$ Engineering JudgmentSystem NPDES Monitoring 4yr 2 ppl 16 hr each hrs 128 10000$ 12800$ 12800$ Engineering JudgmentNPDES Monitoring Report 4yr 24 hrreport hrs 96 10000$ 9600$ 9600$ Engineering JudgmentAnnual Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentPart-time operator check system 1week $60hr 6 hrwk hrs 312 6000$ 18720$ 18720$ Engineering JudgmentFilter Bag Replacement 1xwk each 156 1000$ 1560$ 1560$ Engineering JudgmentFilter Bag Disposal drum 2 drumsyr TSCA incineration drum 2 100000$ 2000$ 2000$ Engineering JudgmentGAC annual profiling fees changeout 1 vesselyr each 1 25000$ 250$ 250$ vendor quoteGAC changeoutregeneration 1xyr each 2 143248$ 2865$ 2865$ 33 13 2005 13274 1215 Means (2004)Utilities - 2-14 hp pumps 2-12hp pumps add 40 for heat lighting controls kW hr 32751 008$ 2620$ 2620$ Engineering JudgementUtilities - phone mo 12 7500$ 900$ 900$ Engineering Judgment Operation and Maintenance Groundwater and Surface Water MonitoringFence Repairs (10) Linear Feet 10 1500$ 150$ 215$ 17020701 Means + $4ft material allowanceGroundwaterSurface Water Monitoring 1yr 2 ppl 24 hr each hrs 48 10000$ 4800$ 4800$ Engineering JudgmentGroundwaterSurface Water Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentReporting (1yr) Hrs 160 10000$ 16000$ 16000$ Engineering Judgment

Total Annual OampM Cost 98665$ 98730$

Present Value of Annual OampM (7 discount factor 30 yrs) 1224339$ 1225144$

Periodic OampM Costs Remove Interceptor Trench Gravel Replace 15 yrs into ProjectInterceptor Trench Excavation overburden and gravel bank cubic yd 1496 247$ 3696$ 3696$ 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 748 3286$ 24584$ 24584$ 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 748 103$ 771$ 771$ 02310 120 3000 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 748 336$ 2514$ 2514$ 02315 120 3320 Means (2006)Non-hazardous disposal of excavated soilgravel nonhazardous ton 748 8784$ 65717$ 65717$ 33 19 7269 Means (2005)

Present Value Periodic OampM Costs 97282$ 97282$

Total Present Value all OampM Costs 1321621$ 1322426$

TOTAL PROJECT COST 12729195$

Sauer Dump Site Sheet 3 of 4 HydroGeoLogic Inc February 2009

AR103864

Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost 2009 Cost ReferenceInterceptor Trench Sump Construction(2 trenches)Interceptor Trench Excavation bank cubic yd 3741 247$ $9231 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 1496 3286$ $49170 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 1496 103$ $1540 02310 120 3000 Means (2006)Purchase prep set groundwater extraction sumps Each 2 100000$ $2000 Engineering Judgment previous experiencePurchase install 4 PVC perforated drain pipe ft 1000 1057$ $10572 33 26 09 02709 2100 Means (2004)Haul dump place excess trench waste soil at cap area Cubic Yard 1496 224$ $3358 02315 110 1900 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 2244 336$ $7542 02315 120 3320 Means (2006)Extraction pumps - Each 2 30000$ $600 pump supplier web site incl freight 14 hp motorPump Controls panels connections Each 2 150000$ $3000 Engineering Judgment

Pump System Piping (treatment building located at south end of Parcel 425)Sumps to treatment building trench header lines 48 deep lineal ft 1200 110$ $1324 02315 620 2250 Means (2006) install 15 sch 80 PVC headers lineal ft 1200 420$ $5037 33 26 0427 Means (2004)

Treatment SystemTreatment Building 20 x 20 sq ft 400 7936$ $31744 median $sf factory Means (2006)Piping Allowance each 1 250000$ $2500 Engineering JudgementSurge Tank 2500 gal poly tank each 2 200000$ $4000 online pricing added freight estimateTransfer Pumps 30 gpm 12 hp centrifugal each 2 40000$ $800 pump web site pricing plus freight allowancePrefilter basket strainers each 2 120000$ $2400 Engineering JudgementGAC Adsorbers 2 in series 200 lb ea initial each 2 143248$ $2865 33 13 2005 13274 1215 Means (2004)Valving Flowmeters Controls Electrical each 1 1000000$ $10000 Engineering Judgement trench discharge line 48 deep lineal ft 200 110$ $221 02315 620 2250 Means (2006)Discharge Piping 4 sch 80 PVC lineal ft 200 992$ $1984 33 26 0427 Means (2004)Utilities - electrical phone service to site install poles li each 1 2000000$ $20000 allowance engineering estimate

TOTAL INSTALLED COST $169888

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater Redirection

Sauer Dump Site Sheet 4 of 4 HydroGeoLogic Inc February 2009AR103865

  • 10 INTRODUCTION
    • 11 PURPOSE AND ORGANIZATION OF THE REPORT
    • 12 SITE BACKGROUND
      • 121 Site Location and Description
      • 122 Site Operational History
        • 13 PREVIOUS SITE INVESTIGATIONS
          • 131 MDE and EPA Initial Site Investigations
          • 132 MDE Site Investigation (1990)
          • 133 EPA Expanded Site Inspection
          • 134 MDE Investigations (1996-2005)
          • 135 Extent of Contamination Study
            • 1351 Site Reconnaissance
            • 1352 Soil and Sediment Sampling
            • 1353 Surface Water Sampling
            • 1354 Groundwater Monitoring Well Installation and Sampling
                • 14 NATURE AND EXTENT OF CONTAMINATION
                  • 141 Surface and Subsurface Soil Contamination
                  • 142 Sediment Contamination
                    • 15 CONTAMINANT FATE AND TRANSPORT
                    • 16 SUMMARY OF BASELINE RISK ASSESSMENT
                      • 20 REMOVAL OBJECTIVES
                        • 21 REMOVAL OBJECTIVES
                        • 22 IDENTIFICATION OF POTENTIAL APPLICABLE OR RELEVANT AND APPROPRIATE REQUIREMENTS
                          • 221 Chemical-Specific ARARs
                          • 222 Location-Specific ARARs
                          • 223 Action-Specific ARARs
                          • 224 To Be Considered Materials
                            • 23 DETERMINATION OF PRELIMINARY REMEDIAL GOALS AND DESCRIPTION OF CONTAMINATED MEDIA
                              • 231 Development of Preliminary Remedial Goals (PRGs)
                              • 232 Volume Estimates ndash Soils and Sediments
                              • 233 Groundwater Management
                                  • 30 IDENTIFICATION AND SCREENING OF TECHNOLOGY TYPES AND PROCESS OPTIONS
                                    • 31 GENERAL RESPONSE ACTIONS (GRAS)
                                    • 32 IDENTIFICATION AND SCREENING OF POTENTIALLY APPLICABLE TECHNOLOGIES
                                    • 33 EVALUATION OF POTENTIAL REMEDIAL TECHNOLOGIES
                                      • 331 No Action
                                      • 332 Institutional Controls
                                        • 3321 Deed NoticesRestrictions
                                        • 3322 Access Agreements
                                        • 3323 Monitoring of Site Conditions
                                        • 3324 Security Fencing
                                        • 3325 Public Awareness and Information Programs
                                          • 333 Containment
                                            • 3331 Multi-Layer Cover
                                            • 3332 TSCA Compacted Soil Cover
                                            • 3333 Asphalt or Concrete Cover
                                              • 334 Soils and Sediments Treatment
                                                • 3341 In Situ Soil Flushing
                                                • 3342 Ex Situ Soil Washing
                                                • 3343 Ex Situ Thermal Desorption
                                                • 3344 Ex Situ Thermal Destruction (Incineration)
                                                  • 335 Groundwater CollectionTreatment
                                                    • 3351 Interceptor Trench
                                                    • 3352 Extraction Wells
                                                    • 3353 Granular Activated Carbon Adsorption
                                                    • 3354 Monitored Natural Attenuation
                                                      • 336 Removal and Disposal TPOs
                                                        • 3361 Excavation
                                                        • 3362 Off-Site Landfill
                                                            • 34 SUMMARY OF TREATMENT TECHNOLOGIES AND SELECTION OF REPRESENTATIVE PROCESS OPTIONS
                                                              • 40 DEVELOPMENT AND DETAILED ANALYSIS OF REMOVAL ALTERNATIVES
                                                                • 41 DEVELOPMENT OF ALTERNATIVES
                                                                  • 411 Alternative 1 No Action
                                                                  • 412 Alternative 2 Surface Cap Excavation and Off-Site Disposal
                                                                  • 413 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                  • 414 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                    • 42 EVALUATION CRITERIA
                                                                    • 43 DETAILED ANALYSIS OF ALTERNATIVES
                                                                      • 431 Alternative 1 No Action
                                                                        • 4311 Effectiveness
                                                                        • 4312 Implementability
                                                                        • 4313 Cost
                                                                          • 432 Alternative 2 Surface Cap Excavation and Off-Site Disposal
                                                                            • 4321 Effectiveness
                                                                            • 4322 Implementability
                                                                            • 4323 Cost
                                                                              • 433 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                                • 4331 Effectiveness
                                                                                • 4332 Implementability
                                                                                • 4333 Cost
                                                                                  • 434 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                                    • 4341 Effectiveness
                                                                                    • 4342 Implementability
                                                                                    • 4343 Cost
                                                                                        • 44 COMPARATIVE ANALYSIS OF ALTERNATIVES
                                                                                          • 441 Effectiveness
                                                                                          • 442 Implementability
                                                                                          • 443 Cost
                                                                                              • 50 SUMMARY
                                                                                              • 60 REFERENCES
Page 2: ENGINEERING EVALUATION/COST ANALYSIS (EE/CA)

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TABLE OF CONTENTS Section Page

EXECUTIVE SUMMARY ES-1

10 INTRODUCTION 1-1 11 PURPOSE AND ORGANIZATION OF THE REPORT1-1 12 SITE BACKGROUND 1-1

121 Site Location and Description 1-2 122 Site Operational History 1-2

13 PREVIOUS SITE INVESTIGATIONS1-3 131 MDE and EPA Initial Site Investigations1-3 132 MDE Site Investigation (1990) 1-3 133 EPA Expanded Site Inspection 1-3 134 MDE Investigations (1996-2005) 1-4 135 Extent of Contamination Study 1-4

1351 Site Reconnaissance 1-5 1352 Soil and Sediment Sampling 1-5 1353 Surface Water Sampling1-5 1354 Groundwater Monitoring Well Installation and Sampling 1-6

14 NATURE AND EXTENT OF CONTAMINATION 1-6 141 Surface and Subsurface Soil Contamination1-6 142 Sediment Contamination1-7

15 CONTAMINANT FATE AND TRANSPORT 1-7 16 SUMMARY OF BASELINE RISK ASSESSMENT 1-8

20 REMOVAL OBJECTIVES 2-1 21 REMOVAL OBJECTIVES 2-1 22 IDENTIFICATION OF POTENTIAL APPLICABLE OR RELEVANT

AND APPROPRIATE REQUIREMENTS2-1 221 Chemical-Specific ARARs 2-2 222 Location-Specific ARARs 2-4 223 Action-Specific ARARs2-4 224 To Be Considered Materials 2-6

23 DETERMINATION OF PRELIMINARY REMEDIAL GOALS AND DESCRIPTION OF CONTAMINATED MEDIA2-7 231 Development of Preliminary Remedial Goals2-7 232 Volume Estimates ndash Soils and Sediments2-8 233 Groundwater Management 2-9

30 IDENTIFICATION AND SCREENING OF TECHNOLOGY TYPES AND PROCESS OPTIONS3-1 31 GENERAL RESPONSE ACTIONS3-1

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TABLE OF CONTENTS (continued) Section Page

US EPA Region 3 Sauer Dump Site EECA ii HydroGeoLogic Inc April 2009

32 IDENTIFICATION AND SCREENING OF POTENTIALLY APPLICABLE TECHNOLOGIES 3-2

33 EVALUATION OF POTENTIAL REMEDIAL TECHNOLOGIES3-2 331 No Action 3-2 332 Institutional Controls 3-3

3321 Deed NoticesRestrictions3-3 3322 Access Agreements3-3 3323 Monitoring of Site Conditions3-4 3324 Security Fencing 3-4 3325 Public Awareness and Information Programs 3-5

333 Containment 3-5 3331 Multi-Layer Cover 3-5 3332 TSCA Compacted Soil Cover 3-6 3333 Asphalt or Concrete Cover3-7

334 Soils and Sediments Treatment 3-8 3341 In Situ Soil Flushing 3-8 3342 Ex Situ Soil Washing 3-9 3343 Ex Situ Thermal Desorption 3-9 3344 Ex Situ Thermal Destruction (Incineration) 3-10

335 Groundwater CollectionTreatment 3-11 3351 Interceptor Trench 3-11 3352 Extraction Wells 3-11 3353 Granular Activated Carbon Adsorption 3-12 3354 Monitored Natural Attenuation 3-12

336 Removal and Disposal TPOs 3-13 3361 Excavation 3-13 3362 Off-Site Landfill 3-13

34 SUMMARY OF TREATMENT TECHNOLOGIES AND SELECTION OF REPRESENTATIVE PROCESS OPTIONS 3-14

40 DEVELOPMENT AND DETAILED ANALYSIS OF REMOVAL ALTERNATIVES 4-1 41 DEVELOPMENT OF ALTERNATIVES4-1

411 Alternative 1 No Action 4-1 412 Alternative 2 Surface Cap Excavation and Off-Site Disposal 4-1 413 Alternative 3 Surface Cap Excavation Off-Site Disposal

and Groundwater Collection and Treatment 4-4 414 Alternative 4 Excavation Off-Site Disposal and Groundwater

Collection and Treatment4-6 42 EVALUATION CRITERIA 4-7 43 DETAILED ANALYSIS OF ALTERNATIVES 4-8

431 Alternative 1 No Action 4-8

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TABLE OF CONTENTS (continued) Section Page

US EPA Region 3 Sauer Dump Site EECA iii HydroGeoLogic Inc April 2009

4311 Effectiveness4-8 4312 Implementability 4-8 4313 Cost 4-8

432 Alternative 2 Surface Cap Excavation and Off-Site Disposal 4-8 4321 Effectiveness4-8 4322 Implementability 4-9 4323 Cost 4-10

433 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment 4-10 4331 Effectiveness 4-10 4332 Implementability 4-11 4333 Cost 4-11

434 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment 4-11 4341 Effectiveness 4-11 4342 Implementability 4-12 4343 Cost 4-12

44 COMPARATIVE ANALYSIS OF ALTERNATIVES 4-12 441 Effectiveness 4-13 442 Implementability 4-14 443 Cost 4-14

50 SUMMARY5-1

60 REFERENCES6-1

LIST OF APPENDICES

Appendix A Historic Analytical Data Tables Appendix B Removal Technology Cost Estimates

AR103627

LIST OF TABLES

Table 21 Applicable or Relevant and Appropriate Requirements (ARARs) and To Be

Considered Material (TBCs) for Sauer Dump Site Table 22 Preliminary Remediation Goals for Sauer Dump Site Table 23 Estimated Extent of Site Contamination for Sauer Dump Site Table 31 Identification and Preliminary Screening of Soil and Sediment Technologies for

Sauer Dump Site Table 32 Identification and Preliminary Screening of Groundwater Technologies for Sauer

Dump Site Table 33 Evaluation and Screening of Soil and Sediment Technology Process Options

(TPOs) for Sauer Dump Site Table 34 Evaluation and Screening of Groundwater Technology Process Options (TPOs)

for Sauer Dump Site Table 41 Individual Evaluation of Remedial Alternatives for Sauer Dump Site

LIST OF FIGURES

Figure 11 Site Location Map Figure 12 Site Detail Map Figure 13 Historic Sample Locations Figure 14 Extent of Contamination in Surface and Subsurface Soils Figure 15 Extent of Contamination in Sediments Figure 41 Alternative 2 Proposed Limits of Soil Excavation Figure 42 Alternatives 2 and 3 Proposed Extent of TSCA Cap Figure 43 Alternative 3 Proposed Limits of Soil Excavation Figure 44 Alternatives 3 and 4 Proposed Groundwater Interceptor Trench Locations Figure 45 Alternative 4 Proposed Limits of Soil Excavation

US EPA Region 3 Sauer Dump Site EECA iv HydroGeoLogic Inc April 2009

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LIST OF ACRONYMS AND ABBREVIATIONS

US EPA Region 3 Sauer Dump Site EECA v HydroGeoLogic Inc April 2009

AOC Area of Concern ARAR Applicable or Relevant and Appropriate Requirements BCHD Baltimore County Health Department bgs below ground surface BLRA Baseline Risk Assessment CAA Clean Air Act CERCLA Comprehensive Environmental Response Compensation and Liability

Act CFR Code of Federal Regulations COMAR Code of Maryland Regulations CWA Clean Water Act DOT Department of Transportation EECA Engineering EvaluationCost Analysis ENSAT Environmental Service and Technology Corporation EOCS Extent of Contamination Study EPA US Environmental Protection Agency ESTD Ex Situ Thermal Desorption FFS Focused Feasibility Study FRTR Federal Remediation Technologies Roundtable FS Feasibility Study GRA General Response Actions HGL HydroGeoLogic Inc IC Institutional Control ITRC Interstate Technology and Regulatory Council LDR Land Disposal Restrictions MDE Maryland Department of the Environment mgkg milligrams per kilogram MPRSA Marine Protection Research and Sanctuaries Act NAAQS National Ambient Air Quality Standards NCP National Oil and Hazardous Substances Pollution Contingency Plan NPDES National Pollutant Discharge Elimination System

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LIST OF ACRONYMS AND ABBREVIATIONS (continued)

US EPA Region 3 Sauer Dump Site EECA vi HydroGeoLogic Inc April 2009

NRWQC National Recommended Water Quality Criteria ORNL Oak Ridge National Laboratory OSHA Occupational Safety and Health Administration PA Preliminary Assessment PAH Polycyclic Aromatic Hydrocarbon PCB Polychlorinated Biphenyl ppm parts per million PRG Preliminary Remediation Goal PRP Potentially Responsible Party RCRA Resource Conservation and Recovery Act RI Remedial Investigation RSL Regional Screening Level SARA Superfund Amendments and Reauthorization Act SI Site Investigation SVOC Semivolatile Organic Compound TBC To Be Considered TPO Technology Process Option TSCA Toxic Substances Control Act VOC Volatile Organic Compound

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EXECUTIVE SUMMARY This Engineering Evaluation and Cost Analysis (EECA) has been developed for the Sauer Dump Site under Contract Number EP-S3-07-05 with Region III of the US Environmental Protection Agency (EPA) The purpose of this EECA is to develop and evaluate removal alternatives that may be feasible for addressing potential risks to human health and the environment posed by contaminated soils and sediments at the Site This EECA was prepared in accordance with the EPA guidance Conducting Non-Time-Critical Removal Actions Under CERCLA (1993) and is organized as follows

bull Section 1 summarizes the Site history and setting as well as current Site characteristics bull Section 2 identifies the removal objectives potential applicable or relevant and

appropriate requirements (ARARs) Preliminary Remedial Goals (PRGs) and the estimated areas and volumes of soils and sediments requiring remediation

bull Section 3 screens remedial technologies with the potential to remediate soilssediments and groundwater and identifies those technologies retained for the development of removal alternatives

bull Section 4 develops potential removal alternatives and evaluates each one in detail with respect to effectiveness implementability and cost This section also includes a comparative analysis of the removal alternatives

bull Section 5 summarizes the results of the EECA SUMMARY OF THE SITE CONDITIONS AND HISTORY The Sauer Dump Site is located adjacent to Lynhurst Road in Dundalk Baltimore County Maryland (Site) The former operational area of the Site is approximately 22 acres and is currently owned by the Wittstadt Hunting Club A majority of the Sauer Dump Site is located within Parcel 425 with samples indicating that some portions of Parcels 137 295 464 503 and 574 were also impacted by the former operations at the Site Some of these affected parcels contain structures that are used for residential purposes Residential properties border the Site to the north northwest east and southwest The southern boundary of the Site is a cove that is part of the Back River which is a tributary of the Chesapeake Bay Wetlands adjacent to this cove and extending along the east and west side of the former operational area are considered to be part of the impacted area The Site is former marshy land that was stabilized using fill material Non-tidal wetland areas within the Sauer Dump Site were formed by fill operations at the Site The groundwater gradient was observed to be towards the south (towards the Back River) The Site was acquired by Mr Fredrick Sauer (now deceased) and operated as an unpermitted dump and salvage yard beginning as early as the 1950s through the time of Sauerrsquos death in 1990 Dumping activities were limited after the nature of the Site came to the attention of the Baltimore County Health Department (BCHD) and the Maryland Department of the

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Environment (MDE) in 1984 The Sitersquos use as an unpermitted dump and salvage yard resulted in the release of hazardous materials The majority of the Site is covered with approximately 10 feet of fill consisting of soil and debris Mr Sauer was ordered by BCHD to close Site operations in 1984 and by September of 1985 the Site was graded and a majority of the material on-site had been removed MDE conducted a Preliminary Assessment (PA) in 1985 and EPA conducted a Site Investigation (SI) in 1986 The analytical data indicated contaminant concentrations in Site sediments soils and surface water that exceeded risk-based screening criteria Subsequent investigations confirmed soil sediment surface water and ground water contamination at concentrations above the respective risk-based screening criteria Site investigations conducted after the initial MDE and EPA work include

bull EPA Expanded Site Inspection (1991 ndash 1994) bull MDE Continued Site Investigations (1996 1999 and 2001) bull MDE Polychlorinated Biphenyl (PCB) Hot-Spot Delineation and Groundwater

Investigation (2002) bull MDE Data Gap Sampling Events (2004 and 2005) bull Extent of Contamination Study (2006-2007)

The primary contaminants in the Sitersquos surface soils subsurface soils and sediments are metals particularly lead and chromium and polychlorinated biphenys (PCBs) however volatile and semivolatile organic compounds (VOCs and SVOCs) were detected at elevated levels in multiple samples Previous Site investigation activities concluded that while most of the surface soils within the boundary of Parcel 425 had been impacted by Site contaminants there were two ldquoHot Spotsrdquo within the area One was located along the southeastern boundary of Parcel 425 where it joins Parcel 137 The other ldquoHot Spotrdquo was much smaller in size and was located in the south-central portion of the Site near the Back River wetlands Previous surface and subsurface soil sampling activities have shown that the access road to the Site (through Parcel 503 and 464) has been impacted by former Site activities Site contaminants have also been detected in the sediments located in the wetlands at the Site One of the ldquoHot Spotsrdquo previously discovered includes portions of the Southeast Finger wetlands which extend into Parcels 137 and 295 In addition elevated levels of Site contaminants have been detected in the Pond area and the Back River wetlands REMOVAL OBJECTIVES The following Removal Objectives were identified

bull Reduce exposure to non-carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

bull Reduce exposure to carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

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bull Reduce risks to human health and ecological communities exposed directly to chemicals in the soils and sediments and indirectly to these chemicals via bioaccumulation of Site contaminants in fish in the receiving waters

bull Minimize the further spread of contamination via any of the following major migration pathways deg Soils to groundwater deg Soils to surface water deg Soils to sediments deg Soils to air deg Groundwater to surface water and deg Sediments to surface water

PRELIMINARY REMEDIAL GOALS (PRGs) PRGs are concentrations used as initial cleanup goals to support the development and evaluation of different remedial approaches PRGs are not the final cleanup standards Sampling at the Site was conducted for a large suite of contaminants (Target Analyte ListTarget Compound List) that were the targets of investigation There were several detected contaminants which exceeded screening level ecological risk assessment values These screening values are not intended to be strictly used as clean up criteria and are intended to be conservative in nature in the early part of the risk assessment process Two contaminants (PCBs and lead) have been identified as primary risk drivers from a human health and ecological risk assessment perspective and also serve as potential markers to delineate areas for a removal action Furthermore evaluated remedial alternatives do not selectively address individual contaminants differentially from the perspective of chemical treatment or degradation The following PRGs were used to identify the area and volume of contaminated media to be addressed by the EECA

bull 400 milligrams per kilogram (mgkg)1 lead in soils bull 1 mgkg total PCBs in soils bull 1 mgkg total PCBs in sediments and bull 130 mgkg lead in sediments

The PRGs for lead and total PCBs in soils are consistent with other sites within EPA Region III where remediation goals of 400 mgkg lead and 1 mgkg PCBs in soils have been established based on results of those sitesrsquo baseline risk assessments The PRG for PCBs in sediments 1 mgkg is based on the practical engineering limitations of dredging technologies For sediments the lead PRG of 130 mgkg reflects consideration of Development and Evaluation of Consensus-Based Sediment Quality Guidelines for Freshwater Ecosystems (MacDonald et al 2000) as noted in the August 2007 Action Memorandum (EPA 2007)

1 Also referred to as parts per million (ppm)

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US EPA Region 3 Sauer Dump Site EECA ES-4 HydroGeoLogic Inc April 2009

The surface water PRGs are based on National Recommended Water Quality Criteria (NRWQC) The Freshwater Chronic values of 0000064 micrograms per liter (ugl)2 total PCBs and 81 ugl lead were selected for surface water at this Site Because groundwater at the Site will not be used as a source of drinking water the primary concern is to ensure that groundwater contaminants do not discharge to surface water at concentrations which would result in impairment of the surface water quality Accordingly the Freshwater Chronic NRWQC are also appropriate as the groundwater PRGs The surface water and groundwater PRGs are provided in Table 22 SOIL AND SEDIMENT VOLUME CALCULATION To determine the volume of soils and sediments requiring remediation chemical concentrations detected in soil and sediment samples were compared to the corresponding PRGs For the evaluation data from the following reports were used Environmental Service and Technology Corporation (ENSAT) Remedial Investigation (RI) and Focused Feasibility Study (FFS) July 2002 (ENSAT 2002a) ENSAT Remedial Investigation August 2005 (ENSAT 2005) and Malcolm Pirnie Extent of Contamination Study (EOCS) June 2007 (Malcolm Pirnie 2007) The lateral extent of soil contamination greater than PRGs was estimated from the surface soil data The available data indicate that portions of Parcels 137 295 425 464 503 and 574 are characterized by soil contamination in excess of the PRGs Subsurface data were used to estimate the vertical extent of contamination requiring remediation In general if no subsurface soil data were available the depth of contamination requiring remediation was assumed to be 8 feet below ground surface (bgs) In the southern portion of Parcel 425 a depth of 35 feet was assumed based on data defining the depth to groundwater On Parcel 137 an average remediation depth of 4 feet was assumed The estimated maximum volume of Site soils requiring remediation is 16760 cubic yards For sediments the remedial volume was based on an assumed remediation depth of 4 feet in areas with wetland vegetation It is estimated that a total of 7740 cubic yards of sediments will require remediation Additional sediment volumes from the Back River might require remediation but the only sample that showed concentrations greater than those proposed for the Site was collected in 1999 Submerged sediment samples have been collected 14 times from within the Back River at locations adjacent to the Sauer Dump Site Given the time span since this sample was collected (over nine years) the mobile nature of river sediments (especially in a tidal location) and natural attenuation the area is currently assumed to meet the PRGs Additional sampling of the Back River sediments should be performed to confirm that the sediments do not exceed the PRGs 2 Also referred to as parts per billion (ppb)

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TECHNOLOGY PROCESS SCREENING AND DEVELOPMENT OF ALTERNATIVES Technology Process Options (TPOs) representing a range of technology types with the potential to address at least some portion of the Site contamination were identified These TPOs were then screened based on their ability to treat Site wastes feasibility for implementation and relative costs of implementation Those TPOs that were retained from the initial screening steps were assembled into removal alternatives that could meet the removal objectives for the Site These removal alternatives were evaluated in terms of effectiveness implementability and cost The four alternatives selected for the detailed evaluation are described below Alternative 1 No Action The no action alternative is included as a baseline in the comparison of other alternatives as required by the National Oil and Hazardous Substances Pollution Contingency Plan (NCP) No removal activities or institutional controls (ICs) would be implemented under this alternative although some level of natural attenuation might occur Alternative 2 Surface Cap Excavation and Off-Site Disposal This alternative consists of the following components

bull Removal and off-site disposal of surface debris bull Clearing and grubbing of Parcel 425 and removal and disposal of materials bull Confirmation sampling to proceed concurrently with all excavation to ensure that

removal requirements are met bull Excavation of contaminated soils with PCBs greater than 100 ppm regardless of depth

and lead greater than 1000 ppm in the upper 2 feet would be excavated from Parcels 425 and 574 for proper off-site disposal

bull Excavation of all contaminated soils with PCBs greater than 1 ppm and lead greater than 400 ppm from the residential properties (Parcels 137 295 464 503 and portions of 574) adjacent to Parcel 425

bull Excavation of the contaminated sediments from the affected wetlands All sediments with PCBs greater than 1 ppm and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 ppm below that depth would be excavated

bull Previously collected data generally supports the conclusion that sediments in the Back River meet the PRGs Verification sampling of sediments along the Back River shoreline would be undertaken to assess the validity of that conclusion If PRGs are not met sediments with PCBs greater than 1 ppm and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 pm below that depth would be excavated

bull Excavated soils and sediments would be temporarily stockpiled in a staging area established on Parcel 425 Confirmation sampling from the stockpile would be performed to verify that PCB concentrations are less than 100 ppm and lead

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concentrations are less than 1000 ppm Soils and sediments meeting these criteria would be placed across the upland portions of Parcel 425 Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull After completion of excavation and confirmation sampling all excavated areas with the exception of Parcel 425 would be restored by backfilling and re-vegetation Parcel 425 would be re-graded and compacted after placement of the excavated soils and sediments and backfilled as required to maintain proper grade and drainage in preparation for construction of a TSCA soil cover

bull Construction of a TSCA compacted soil cover over the contaminated soils and sediments which exceed 1 ppm PCBs on Parcel 425

bull Installation of replacement monitoring wells if necessary and a monitoring program to monitor the effectiveness of the remediation effort and groundwater quality Groundwater monitoring would be conducted on a semi-annual basis for a four year period beginning after the construction activities are complete Constituents to be monitored include lead and PCBs and

bull Implementation of Institutional Controls to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area of the Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment This alternative includes the same elements as Alternative 2 with the following exceptions

bull Excavation of contaminated soils with PCBs greater than 10 ppm and lead greater than 400 ppm at any depth from Parcels 425 and 574 for proper off-site disposal

bull Excavation of the contaminated sediments from the affected wetlands All sediments with PCBs greater than 1 ppm and lead greater than 130 ppm would be excavated

bull Excavated soils and sediments with PCB concentrations less than 10 ppm and lead concentrations less than 400 ppm would be placed across the upland portions of Parcel 425 for capping Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull Installation of a groundwater collection system to control off-site migration of groundwater from the former dump area

bull Installation of a groundwater treatment system to remove lead and PCBs from the captured groundwater and discharge the water to the Back River

bull Implementation of long-term operation maintenance and monitoring for the groundwater collection and treatment system and

bull Implementation of Institutional Controls to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area

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of the Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment This alternative consists of the elements of Alternative 2 with the following additional components

bull No cap would be installed at the Site bull Excavation of contaminated soils with PCBs greater than 1 ppm and lead greater than

400 ppm at any depth from all parcels for proper off-site disposal bull Excavation of the contaminated sediments from the affected wetlands All wetland

sediments with PCBs greater than 1 ppm and lead greater than 130 ppm would be excavated for proper off-site disposal

bull Proper off-site landfilling of excavated soils with greater than 1 ppm and less than 500 ppm of PCBs

bull After completion of excavation and confirmation sampling all excavated areas would be restored

bull Installation of a groundwater collection and treatment system and associated long-term monitoring and maintenance as described for Alternative 3 and

bull Recordation of deed notices to ensure that groundwater use is restricted if necessary

ANALYSIS OF ALTERNATIVES Alternative 1 Effectiveness Because no action would be performed this alternative would not protect human health or the environment Current and future risks from soil and sediment contamination at the Site would not be significantly different from those that currently exist ARARs would not be met Because no action would be taken this alternative does not pose any risks associated with implementation Implementability Because no action would be taken this alternative could be implemented easily Costs There are no costs associated with Alternative 1 Alternative 2 Effectiveness This alternative provides effective long-term protection of human health and the environment by either removing the contaminated materials or eliminating the potential contact pathway The removed materials would be disposed in an off-site landfill or incinerated at a permitted off-site facility Alternative 2 would decrease soil and sediment

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contaminant mobility toxicity and volume Installation of a TSCA cap would reduce the potential for erosion of soils and prevent dermal contact with contaminated soils The cap would also minimize the infiltration of liquids through the contaminated soils remaining at the Site Implementation of ICs would also increase the long term protectiveness of this alternative Installation of a fence around the capped area of the Site would effectively restrict access to the Site The requirement for deed notices would ensure that any potential future purchaser of the property comprising the Site would be aware that contamination remains on the Site and of the necessity for maintaining the cap and the fence This alternative would comply with ARARs provided the entire Site is classified as a single Area of Concern (AOC) to meet land disposal restriction (LDR) criteria in TSCA and the Resource Conservation and Recovery Act (RCRA) (see Section 221) This alternative would also meet the risk-based criteria of the TSCA regulations at 40 CFR sect 76161(c) Alternative 2 would provide limited control of groundwater interaction with soils and sediments below the compacted soil cap Any soil contamination remaining below the capped areas could come in contact with the tidally influenced groundwater While Alternative 2 would not initially provide for groundwater treatment if the monitoring program implemented as part of this alternative indicated that unacceptable levels of Site contaminants are impacting the groundwater andor the Back River a groundwater capture and treatment system could be put in place to address the problem Implementability This alternative could be implemented with standard construction equipment and readily available materials and labor No major technical difficulties are anticipated in implementing this alternative and it could be implemented within a relatively short period of time Currently there are only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 mgkg These facilities are in Texas or Utah necessitating the use of long distance truck transportation The risk associated with off-site transport is the potential for contamination to spread through spills or accidents Also long-term administrative resources would be required to ensure compliance with the ICs and maintenance of the cover Cost The cost calculations for Alternative 2 are presented in Appendix B-1

bull The capital cost for Alternative 2 is estimated to be $ 531 Million

bull The present worth OampM cost is approximately $ 729000

bull The total project cost (present worth) is estimated to be $ 604 Million

Alternative 3

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Effectiveness Alternative 3 would be more effective at reducing risks related to Site contamination than Alternative 2 because soils with PCB concentrations greater than 10 ppm (instead of 100 ppm) or lead concentrations greater than 400 ppm (instead of 1000 ppm) would be removed from the Site Additionally Alternative 3 would provide controls to prevent off-site migration of groundwater from beneath the compacted soil cap The excavation and off-site disposal of additional contaminated soils and sediments and the construction of a groundwater collection and treatment system would increase short-term impacts including increased construction activities and truck traffic Alternative 3 would comply with ARARs As in Alternative 2 the Site would be considered a single AOC with respect to LDR compliance The groundwater collection and treatment system would have the added benefit of preventing the potential migration of contaminated groundwater to the wetland areas and surface waters Alternative 3 would decrease contaminant mobility toxicity and volume in both the groundwater and soilssediments Implementation of ICs would also increase the long term protectiveness of this alternative Installation of a fence around the capped area of the Site would effectively restrict access to the Site The requirement for deed notices would ensure that any potential future purchaser of the property comprising the Site would be aware that contamination remains on the Site and of the necessity for maintaining the cap and the fence Implementability Alternative 3 would be somewhat more difficult to implement than Alternative 2 because of the additional excavation of soils and sediments that would be required Currently there are only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 mgkg These facilities are in Texas or Utah necessitating the use of long distance truck transportation The risk associated with off-site transport is the potential for contamination to spread through spills or accidents and this risk would be increased with this alternative because of the additional loads of contaminated soils and sediments that would need to be transported off-site for disposal This alternative would also require the construction of a groundwater collection treatment and discharge system While a National Pollutant Discharge Elimination System (NPDES) permit would not be required to discharge the treated groundwater to the Back River it would be necessary to comply with the substantive requirements of 40 CFR Part 122 For groundwater the treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively making it difficult if not impossible to achieve the required level of treatment for PCBs Additional long-term administrative resources would be required to ensure compliance with the ICs as well as maintenance of the cover system and fence and maintenance and monitoring of the collection and treatment system It would also take longer to implement this alternative than it would for Alternative 2 because of the increased excavation and construction activities required Cost The cost calculations for Alternative 3 are presented in Appendix B-2

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The capital cost for Alternative 3 is estimated to be $ 777 Million

The present worth OampM cost is approximately $ 163 Million

The total project cost (present worth) is estimated to be $ 939 Million

Alternative 4 Effectiveness Because all soils and sediments with contamination concentrations above the PRGs would be removed from the Site Alternative 4 would provide the greatest long-term protection to human health and the environment and more effective control of contaminant migration relative to the other alternatives As with Alternative 3 the groundwater collection and treatment system would prevent the potential migration of residual contaminated groundwater to the wetland areas and surface waters Alternative 4 shares the same short-term excavation and transportation impacts identified for Alternative 3 however truck traffic would be greatly increased This alternative would decrease contaminant mobility toxicity and volume and would comply with ARARs Implementability Because all soils would be disposed off-site there would be a significant increase in truck traffic relative to the other alternatives The risk associated with off-site transport is the potential for contamination to spread through spills or accidents and this risk would be greatly increased with this alternative because of the significant number of additional loads of contaminated soils and sediments that would need to be transported off-site for disposal In addition there are currently only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 mgkg These facilities are in Texas or Utah necessitating the use of long distance truck transportation Public opposition to the traffic impacts from the extensive off-site transportation requirements of this alternative could potentially make implementability more difficult than for Alternatives 2 and 3 This alternative would also require the construction of a groundwater collection treatment and discharge system and would require compliance with the substantive requirements of a NPDES permit For groundwater the treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively making it difficult if not impossible to achieve the required level of treatment for PCBs It would take considerably longer to implement this alternative than it would to implement Alternative 2 Additional long-term administrative resources would be required to ensure compliance with any ICs determined to be necessary as well as maintenance and monitoring of the collection and treatment system Cost The cost calculations for Alternative 4 are presented in Appendix B-3

The capital cost for Alternative 4 is estimated to be $ 1141 Million

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The present worth OampM cost is approximately $ 132 Million

The total project cost (present worth) is estimated to be $ 1272 Million

COMPARATIVE ANALYSIS AND RECOMMENDED ALTERNATIVE Alternative 1 No Action would not be an effective alternative This alternative would not protect human health or the environment would not prevent contaminant migration and would not comply with ARARs Alternatives 2 3 and 4 would provide generally effective approaches to the protection of human health and the environment All three alternatives would comply with ARARs although Alternatives 2 and 3 rely on the classification of the entire Site as a single Area of Concern Alternative 2 would address the interaction and discharge of groundwater with Site contaminants that are left under the capped areas through monitoring rather than collection and treatment Alternative 2 would also allow more contaminated materials (PCBslt100 ppm and lead lt1000 ppm) to remain on the Site (albeit under a TSCA cap) than the other alternatives Alternatives 2 3 and 4 would eliminate the soil exposure pathways which contribute to the unacceptable human health and ecological risks but Alternatives 2 and 3 would require the ongoing maintenance of a cap to ensure that the pathway remains blocked All three of these alternatives would prevent continued migration of soil and sediment contaminants although again Alternatives 2 and 3 would require cap maintenance to ensure that migration is prevented in the long term Because it would require the removal and off-site disposal of the most highly contaminated material (down to 1 ppm PCBs and 400 ppm lead) Alternative 4 would provide the highest degree of long-term protection Alternatives 2 3 and 4 each would pose short-term risks to workers and the community These risks however could be mitigated through use of engineering controls personal protective equipment and vapordust suppression measures Alternative 4 would pose the greatest short-term risks because of the significant increase in excavation activities and truck traffic required Alternative 2 would pose the least short-term risks Alternatives 2 and 3 would decrease but not eliminate contaminant mobility and would reduce contaminant toxicity and volume Alternative 4 would eliminate contaminant mobility and would reduce contaminant toxicity and volume Alternatives 2 and 3 would provide additional protection of human health and the environment through the implementation of ICs The implementability evaluation indicated that Alternative 4 would be the most difficult to implement and would take the longest amount of time to implement because of the need for greater excavation of soils and sediments and off-site disposal of all contaminated soils and sediments Alternatives 3 and 4 would be difficult to implement because the PRGs for groundwater may be impossible to meet Aside from the No Action Alternative Alternative 2 would be the easiest to implement

US EPA Region 3 Sauer Dump Site EECA ES-11 HydroGeoLogic Inc April 2009

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HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA ES-12 HydroGeoLogic Inc April 2009

Alternative 2 with a total present worth of $604 million would be less expensive than Alternatives 3 and 4 Alternative 4 has the both the highest degree of protectiveness and the greatest estimated cost $ 1272 million Alternative 3 would provide a high degree of protection at a cost of $ 939 million Based on the comparison performed as part of this evaluation all the alternatives appear to be generally protective with Alternative 4 appearing to be the most protective as well as the most difficult to implement and the most costly The incremental cost increases (approximately 55 between Alternatives 2 and 3 and 35 between Alternatives 3 and 4) are accompanied by increases in overall protectiveness that are difficult to quantify accurately and in the case of the groundwater pathway may be difficult or impossible to achieve Alternative 2 appears to be the most easily implemented and least costly protective approach for this Site

AR103642

ENGINEERING EVALUATIONCOST ANALYSIS SAUER DUMP SITE

DUNDALK MARYLAND

10 INTRODUCTION

This Engineering Evaluation and Cost Analysis (EECA) has been developed for the Sauer Dump Site (Site) a former unlicensed dump and salvage yard located in Dundalk Maryland (Figure 11) This EECA has been prepared by HydroGeoLogic Inc (HGL) under Contract Number EP-S3-07-05 with Region III of the US Environmental Protection Agency (EPA) in accordance with Tasks 12 and 13 of Work Assignment 020NSEE03EW

11 PURPOSE AND ORGANIZATION OF THE REPORT

The purpose of this EECA Report is to develop and evaluate removal action alternatives to address potential risks to human health and the environment posed by contaminated sediments and soils at the Sauer Dump Site The scope of this EECA is based on discussions with EPA and information obtained from previous Site investigations performed by other consultants This document has been prepared in accordance with the requirements of the NCP 40 Code of Federal Regulations (CFR) Part 300 regulations for implementing the Comprehensive Environmental Response Compensation and Liability Act (CERCLA) as well as the EPA guidance Conducting Non-Time-Critical Removal Actions Under CERCLA (EPA 1993) The EECA is organized as follows

bull The subsequent subsections of Section 1 summarize Site history and setting as well as current Site characteristics

bull Section 2 identifies the removal objectives potential applicable or relevant and appropriate requirements (ARARs) Preliminary Remedial Goals (PRGs) and the estimated areas and volumes of sediments and soils requiring remediation

bull Section 3 identifies and screens technologies with the potential to address the soilssediments and groundwater contamination

bull Section 4 describes the removal alternatives developed from the technologies retained in Section 3 Section 4 also contains a detailed and comparative analysis of the removal alternatives

bull Section 5 summarizes the results of the EECA

12 SITE BACKGROUND

Background information on the Sauer Dump Site is summarized below Additional background material can be found in the July 2002 Remedial Investigation (RI) and Focused Feasibility Study (FFS) prepared by Environmental Service and Technology Corporation (ENSAT)

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(ENSAT 2002a) and in the June 2007 Extent of Contamination Study (EOCS) Report prepared by Malcolm Pirnie (Malcolm Pirnie 2007) The majority of the Site is located within Parcel 425 with some portions of Parcels 137 295 464 503 and 574 impacted by andor included in the former operations at the Site A Site map showing the parcel boundaries along with the locations and designations of the wetland areas is included as Figure 12

121 Site Location and Description

The Sauer Dump Site is located behind and adjacent to residential properties on Lynhurst Road Dundalk Baltimore County Maryland The area is a mixture of residential and undeveloped properties The Site is estimated to be 57 acres (including portions of surrounding parcels that are known to have been impacted by the contamination) in size and the main property (Parcel 425) is currently owned by the Wittstadt Hunting Club Some of the affected parcels include structures that are used for residential purposes A precise determination of the Site boundaries is not possible at this point because the existing data do not sufficiently delineate the areal extents of the Site contamination Parcel 425 is largely vegetated with tall grasses reeds trees and scrub brush and is surrounded by a chain-link fence to control access to the Site Two gates located along the northern and southern perimeters of the fence are locked to prevent unauthorized access Parcel 425 is former marshy land that was stabilized using fill material There is a ponded area located to the northwest of Parcel 425 The southern boundary of the Site is a cove that is part of the Back River which is a tributary of the Chesapeake Bay (Figure 11) Wetlands adjacent to this cove and extending along the east and west side of the former operational area are considered to be part of the impacted area Previous Site investigations concluded that the wetlands onsite that are not tidally influenced were formed by fill operations within the Sauer Dump Site Past Site operations have impacted an estimated 144 acres of wetlands surrounding the upland portions of the Site The vegetation observed within the wetlands is predominantly reeds (Phragmites ndash an invasive species)

122 Site Operational History

According to previous reports the main portion of the Site was owned by Mr Fredrick Sauer (now deceased) and was operated as an unpermitted dump and salvage yard beginning as early as the 1950s and continuing until Sauerrsquos death in 1990 Activities at the Site were limited in the mid-1980s when the nature of the Site came to the attention of the Baltimore County Health Department (BCHD) and the Maryland Department of the Environment (MDE) Based on soil sediment surface water and groundwater data the Sitersquos use as an unpermitted dump and salvage yard resulted in the release of hazardous materials

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13 PREVIOUS SITE INVESTIGATIONS

131 MDE and EPA Initial Site Investigations

To address concerns raised by BCHD about the Site two Site Investigations were performed between 1985 and 1986 MDE conducted a Preliminary Assessment (PA) and Site Investigation (SI) and EPA conducted a SI During the investigations salvage and dump operations were observed on Site and in portions of the surrounding residential area The Site was observed to be relatively flat with mounds of dumped domestic and construction debris burned paint waste and several charred areas Salvage items observed during the Site investigations included scrap metal empty tanks and drums abandoned trucks open roll-off containers construction equipment concrete conduit wood chips and abandoned automobiles An oily sheen was observed on-site and in the adjacent wetlands The BCHD ordered Mr Sauer to close Site operations in 1984 By September of 1985 a majority of the material on-site had been removed However later observations indicated that dumping and salvage operations continued until Sauerrsquos death in 1990 During Site Investigation activities soil sediment and surface water samples were collected and analyzed for VOCs SVOCs total metals pesticides and PCBs The data indicated the presence of these analytes at concentrations greater than the risk-based screening criteria

132 MDE Site Investigation (1990)

In 1990 surface soil and sediment samples were collected from the Site The samples were analyzed for VOCs total metals pesticides and PCBs Metals and PCBs were detected at concentrations exceeding the risk-based screening criteria During Site Investigation activities piles of scrap metal tanks and a three-to-eight foot deep pile of rubblefill were observed at the Site

133 EPA Expanded Site Inspection

An expanded Site inspection was conducted by EPA between 1991 and 1994 Soil sediment and surface water samples were collected and analyzed for VOCs SVOCs total metals pesticides and PCBs Analytical results indicated contamination of all three media at concentrations greater than the risk-based screening criteria During the expanded Site inspection activities field personnel observed that a majority of the Site had been covered to an approximate 10 foot depth with fill and debris Debris included a tractor trailer concrete bricks rebar tires drums furniture a curing oven broken asphalt empty 55-gallon drums and a 1000-gallon storage tank Oil sheens were observed in the wetlands

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134 MDE Investigations (1996-2005)

Between 1996 and 2005 MDE completed the following field investigations

bull In 1996 soil sediment and surface water samples were collected and analyzed for metals and PCBs

bull In 1999 soil sediment surface water and groundwater samples were collected and analyzed for VOCs SVOCs metals pesticides and PCBs Surface water and groundwater samples were analyzed for total metals and dissolved metals

bull In 2001 five shallow monitoring wells were installed Soil sediment and groundwater samples were collected and analyzed for VOCs SVOCs metals pesticides and PCBs The groundwater samples were analyzed for total and dissolved metals A topographic survey of the Site and the surrounding lands was conducted

bull In 2002 surface water groundwater and soil samples were collected and analyzed for PCBs Field based screening assays were used to delineate PCB contamination in Site soils Water level monitoring was performed to assess the extent of tidal influence on the Site groundwater A wetlands survey was also completed

bull In 2004 soil samples were collected and analyzed for metals SVOCs pesticides and PCBs

bull In 2005 soil samples were collected and analyzed for PCBs The analytical results of these investigations indicated the presence of VOC SVOC metals pesticide and PCB contamination at concentrations greater than risk-based screening levels The primary contaminants were identified as lead and PCBs Based on the laboratory and field data two PCB ldquoHot Spotsrdquo were identified (one in the southeast and one in the south-central portion of the Site) Groundwater monitoring data indicated that the local groundwater gradient is towards the Back River However tidal influences have been observed in the pond and in four of the five ground water monitoring wells located on the Site

135 Extent of Contamination Study

In 2007 the Potentially Responsible Partiesrsquo (PRPsrsquo) contractor (Malcolm Pirnie) performed soil sediment and groundwater sampling activities to address data gaps identified from previous Site investigations Data gaps that were identified included

bull Delineation of PCB and lead contamination on Parcel 137 bull Background data for surface and subsurface soils east of the Site bull Surface soil analytical data for Parcels 503 and 464 bull Collection of additional sediment samples for PCB and lead analyses and bull Collection of surface water and groundwater samples

Site reconnaissance was performed prior to the initiation of sampling activities The results of these field activities are described below

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1351 Site Reconnaissance

An initial Site reconnaissance visit was performed by Malcolm Pirnie in December 2006 to determine the existing Site conditions Observations of the Site visit are listed below

bull Monitoring well MW-1 could not be located bull The Site was heavily vegetated bull The well annulus around monitoring well MW-4 was left open which might have

compromised the integrity of the well and bull Some of the proposed sampling locations were in asphalt-covered areas

Based on the observations from the initial Site visit a second Site visit was performed in January 2007 prior to the start of sampling activities During this Site visit the final planned locations of the field samples were identified In addition it was determined that all Site monitoring wells with the exception of MW-1 were compromised and should be overdrilled Because MW-1 could not be located this well was identified as requiring re-installation

1352 Soil and Sediment Sampling

In January 2007 32 surface soil and nine subsurface soil samples were collected The surface soil samples were analyzed for lead and PCBs The subsurface soil samples were collected from two to three feet bgs and analyzed for lead PCBs VOCs and SVOCs Nine sediment samples were collected with seven from the wetlands one from the pond area and one from the Back River The sediment samples were collected from the top six inches of sediments below the organic build-up and were analyzed for lead and PCBs The most commonly detected PCB compound was Aroclor 1260 which was detected in 25 of the 32 surface soil samples and eight of the nine subsurface soil samples Lead was detected in all of the surface and subsurface soil samples The highest lead and PCB concentrations were observed in the samples collected from the ldquoHot Spotrdquo locations Low concentrations of VOCs and SVOCs were detected in several of the subsurface soil samples

1353 Surface Water Sampling

In January 2007 two surface water samples were collected from the Back River shoreline These samples were co-located with sediment samples DG-SD08-05 and DG-SD09-05 The samples were collected soon after the peak of high tide and prior to sediment sampling activities to minimize elevated turbidity readings from re-suspended sediments The filtered and unfiltered surface water samples were analyzed for lead and PCBs Using EPA Method 8082 no PCBs were detected in the unfiltered and filtered samples Using the congener method (EPA Method 1668) PCBs were detected at low concentrations in both the filtered and unfiltered samples Lead was detected in one filtered sample and both unfiltered samples

US EPA Region 3 Sauer Dump Site EECA 1-5 HydroGeoLogic Inc April 2009

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1354 Groundwater Monitoring Well Installation and Sampling

Well installation activities occurred in January 2007 Five wells were installed using the hollow stem auger method and were constructed of two-inch diameter polyvinyl chloride casing and screen In February 2007 groundwater samples were collected from the five monitoring wells and analyzed for total and dissolved lead and PCBs PCBs were detected only in the unfiltered sample from well MW-4 when the samples were analyzed using EPA Method 8082 When the samples were analyzed using EPA Method 1668 PCBs were detected in the filtered and unfiltered samples from all five wells Lead was detected in three unfiltered samples but not in any of the filtered samples

14 NATURE AND EXTENT OF CONTAMINATION

The analysis of the nature and extent of contamination as presented in this EECA is based on the soil and sediment data provided in the reports for the previous investigations identified in Section 13 The locations of the samples collected as part of these investigations are presented on Figure 13 Over the course of the 22 years of Site investigations and assessments 132 surface soil samples 216 subsurface soil samples 67 sediment samples 47 surface water and 28 groundwater samples have been collected (including duplicate field samples and quality control samples) The samples were collected from Parcels 137 295 425 464 503 and 574 The analytical results for the surface soil subsurface soil sediment surface water and groundwater samples are included in Appendix A as Tables A1 through A5 The nature and extent of contamination in Site soils and sediments are briefly summarized in the subsections below Because of the lack of ldquocleanrdquo perimeter samples (ie those showing no contamination or only background concentrations of Site contaminants) a precise delineation of the areal extents of the Site contamination could not be derived The impacted area referred to in this report should therefore be viewed as the estimated minimum extent of contamination

141 Surface and Subsurface Soil Contamination

The primary soil contaminants at the Site are metals (particularly lead) and PCBs Previous Site Investigation activities concluded that while most of the surface soils within the boundary of Parcel 425 had been impacted to some extent by Site contaminants there were two PCBlead ldquoHot Spotsrdquo within the area One was located along the southeastern boundary of Parcel 425 adjacent to Parcel 137 This ldquoHot Spotrdquo included portions of the Southeast Finger wetlands The other ldquoHot Spotrdquo was much smaller in size and was located in the south-central portion of the Site near the Back River wetlands PCB concentrations in the larger of these ldquoHot Spotsrdquo exceeded 1000 milligrams per kilogram (mgkg) with a maximum detection of 33000 mgkg Across the majority of the Site including the adjacent affected parcels PCB concentrations were substantially lower (orders of magnitude) than those observed in the ldquoHot Spotsrdquo

US EPA Region 3 Sauer Dump Site EECA 1-6 HydroGeoLogic Inc April 2009

AR103648

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Lead concentrations greater than 1000 mgkg and some detections even greater than 10000 mgkg were observed in the soil samples Other metals including arsenic chromium selenium vanadium and zinc were detected at substantially elevated concentrations Previous surface and subsurface soil sampling activities have shown that the access road to the Site and other areas of Parcel 503 and 464 have also been impacted by former Site activities along with areas of Parcel 137 Parcel 295 and Parcel 574 The extent of soil contamination above PRGs is presented graphically on Figure 14

142 Sediment Contamination

The primary sediment contaminants are also metals particularly lead and PCBs Multiple sediment samples had lead concentrations in excess of 500 mgkg Elevated concentrations of arsenic chromium and selenium were also detected in several sediment samples One of the aforementioned ldquoHot Spotsrdquo includes portions of the Southeast Finger wetlands which extend into Parcels 137 and 295 In addition elevated concentrations of Site contaminants have been detected in sediments from the Pond area and the Southwest Finger wetlands (located primarily on Parcel 574) and in the wetlands adjacent to the Back River Contaminant concentrations in excess of the PRGs were also detected in one Back River sediment sample that was collected in 1999 but given the time span since this sample was collected (over nine years) the mobile nature of river sediments (especially in a tidal location) natural attenuation and the presence of adjacent samples that do not exceed the PRGs additional sampling should be performed to determine whether and to what extent remediation of these sediments would be needed The extent of sediment contamination greater than PRGs is presented graphically on Figure 15

15 CONTAMINANT FATE AND TRANSPORT

This section summarizes the potential fate and transport pathways for the soil and sediment contaminants Detailed discussion of contaminant fate and transport including chemical-specific fate and transport characteristics can be found in the EOCS Report (Malcolm Pirnie 2007) The original contaminant sources were the waste and debris dumped at the Site The historical reports indicate that the majority of the surface and subsurface waste and debris has been removed from the Site However the debris which remains at the Site could be a continuing source of contamination In addition contaminated soils and sediments act as a source of contamination for groundwater and surface water The contaminated soils might also be a continuing source for sediment contamination Potential migration pathways include surface soil erosion precipitation infiltration surface water flow sediment movement and groundwater flow Each of the potential migration pathways is briefly described below Contaminants in surface soils could migrate by erosion and overland flow during storm events or by leaching with infiltrating precipitation The primary contaminants metals and PCBs

US EPA Region 3 Sauer Dump Site EECA 1-7 HydroGeoLogic Inc April 2009

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US EPA Region 3 Sauer Dump Site EECA 1-8 HydroGeoLogic Inc April 2009

tend to associate with soil particles causing them to be more susceptible to erosion Contaminants associated with soil particles might also become entrained in air if dust is generated Wind can transport these airborne particulates The potential for dust emissions depends upon the extent to which the Site is vegetated Volatile compounds in soils may volatilize into ambient air Soluble contaminants could leach from surface soils to subsurface soils with infiltrating precipitation This leaching process can transport the contaminants to the groundwater Once dissolved within the groundwater the contaminants will migrate via advection dispersion and diffusion Sorption to or association of contaminants with solid surfaces can retard the leaching of contaminants to and transport of contaminants within the groundwater Contaminants sorbed to sediment particles could be transported by erosional processes during storm events Contaminants dissolved in the water contained within the sediment interstitial spaces will move with the water flux through the sediments For sediments along the Back River shoreline associated contaminants might dissolve directly into the surface water and migrate with the riverrsquos flow The Site contaminants can also be transformed by a variety of processes Metals may be transformed to more or less soluble forms by changes in reductive oxidation (redox) conditions Metals and organic compounds can also accumulate in the tissues of plants and animals Some organic compounds might be degraded by microbial or chemical processes The primary organic contaminant PCBs tends to be recalcitrant to degradation reactions

16 SUMMARY OF BASELINE RISK ASSESSMENT

As part of the MDE 2002 Site Investigation a Baseline Risk Assessment (BLRA) was prepared (ENSAT 2002b) The BLRA assessed potential threats to non-residential receptors (adult visitor youth visitor child visitor and construction worker) exposed to the Site contaminants Exposure of these receptors to soil contaminants was associated with potential cancer risks greater than 1E-04 and hazard indices greater than 1 The potential effects due to lead exposure were not quantified However the BLRA noted that some lead detections significantly exceeded the recommended residential soil screening value of 400 mgkg and concluded that there was potential for the lead contamination to cause adverse effects The BLRA determined that exposure of the child visitor to contaminants in the Site sediments resulted in a non-cancer Hazard Index (HI) greater than 1 indicating the potential for adverse effect The BLRA did not include an analysis of potential effects of soil contaminants on ecological receptors The sediment data were screened against ecological benchmarks Based on this screening the BLRA concluded that the PCBs in sediments might pose a threat to ecological receptors

AR103650

FIGURES

AR103651

XEPA010SauerCost_Analysis_Draftlocation_mapmxdMap Source USGS Quadrangle MapMiddle River MD 1996111008 PD Figure 11

Site Location Map

Former Sauer Dump

HGLmdashRevised Draft Engineering EvaluationCost Analysis Former Sauer Dump and Salvage YardmdashDundalk Maryland

[_

FormerSauer Dump

MARYLAND

General Location Inset

0 50 100

Miles

0 3000 60001500

SCALE IN FEETsup3

AR103652

Parcel 425

Parcel 137

Parce

l 295

Parce

l 464

Parce

l 503

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

XEPA010SauerCost_Analysis_Draftsite_mapmxdMap Source NAIPMiddle River MD 2007111008 PD

Figure 12Site Detail Map

HGLmdashRevised Draft Engineering EvaluationCost Analysis Former Sauer Dump and Salvage YardmdashDundalk Maryland

sup3 0 100 20050

SCALE IN FEET

Legend

Surveyed Wetlands(ENSAT 2005)

Parcel Boundary

AR103653

Figure 13Historic

Sample Locations

HGLmdashRevised Draft Engineering EvaluationCost Analysis Former Sauer Dump and Salvage YardmdashDundalk Maryland

Legend

XEPA010SauerCost_Analysis_DraftHistoric_Sample_Loc_LmxdMap Source NAIPMiddle River MD 2007111008 PDsup3

$+

$+

$+

$+

$+

$+

$+$+

$+$+

$+

$+$+

$+

$+

$+

$+

$+$+

$+$+

$+$+$+$+

$+ $+$+

$+

$+$+

$+$+

$+$+

$+

$+ $+

$+

$+

$+

$+

$+$+$+$+$+

$+$+$+

$+$+

$+

acute

acute

acute

acute

acute

(

( (((

(

((

XW

XW

XW

XW

XW

XW

XW

XWXW

XWXW

XW

XWXWXWXWXWXWXW XW XW

XWXWXWXWXWXWXWXWXWXWXW

XWXWXWXWXWXWXWXWXW

XWXWXWXWXWXW

XW

XW

Parcel 425

Parcel 137

Parcel 2

95Parcel 4

64Parcel 5

03

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 120 24060

SCALE IN FEET

Surveyed Wetlands(ENSAT 2005)

Parcel Boundary

Surface and Subsurface Soil SampleXW

Groundwater Sample

Surface Water Sample(

Surface Soil Sample

Subsurface Soil Sample

Sediment Sample$+

AR103654

Legend

Figure 14Extent of Contamination

for Soils(Surface and Subsurface)

XEPA010SauerCost_Analysis_DraftSoils_Contamination_11x17mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

XW

XW

XW XWXWXWXWXW XW

XW

XW

XWXWXWXWXWXWXWXWXWXW

XW

XWXWXW

XWXWXW

XWXW

XW

XW

XW

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Subsurface Soil Sample Exceeding PRG

Surface Soil Sample Exceeding PRG

Parcel Boundary

Surveyed Wetlands(ENSAT 2005)

NotesAll soil samples shown on figure contained oneor more PRG exceedances

Grid Soil Samples

Surface and Subsurface Soil SampleExceeding PRGXW

AR103655

Legend

Figure 15Extent of Contamination

in Sediment

XEPA010SauerCost_Analysis_DraftSediment_Contamination_11x17bmxdMap Source NAIPMiddle River MD 2007022609 PD

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

$

$

$

$

$$

$

$

$

$$

$$$

$$

$

$

$$

$

$$

$

$

$$

$

+

+

+

+

++

+

+

+

++

+++

++

+

+

++

+

++

+

+

++

+

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$$$

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+++

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

Surveyed Wetlands(ENSAT 2005)

Sediment Samplewith Lead lt 130 ppmand PCBs lt 100 ppm

$+

Sediment Samplewith Lead gt 130 ppmor PCBs gt 100 ppm

$+

Proposed Limits of Excavationfor Sediment

AR103656

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

20 REMOVAL OBJECTIVES

This section identifies the removal objective and goals for the Site The removal objectives are described in Section 21 This is followed by identification of the potential ARARs with which the selected removal alternative must comply To provide target cleanup levels that ensure the removal objectives will be met quantifiable PRGs are then presented Finally these PRGs are used to estimate the volume of contaminated materials that might require remediation

21 REMOVAL OBJECTIVES

The following removal objectives were identified

bull Reduce exposure to non-carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

bull Reduce exposure to carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

bull Reduce risks to human health and ecological communities exposed directly to chemicals in the soils and sediments and indirectly to these chemicals via bioaccumulation in fish in the receiving waters

bull Minimize the further spread of contamination via any of the following major migration pathways deg Soils to groundwater deg Soils to surface water deg Soils to sediments deg Soils to air deg Groundwater to surface water and deg Sediments to surface water

22 IDENTIFICATION OF POTENTIAL APPLICABLE OR RELEVANT AND APPROPRIATE REQUIREMENTS

The EPA document Conducting Non-Time-Critical Removal Actions Under CERCLA (1993) specifies that the EECA should evaluate each removal alternative in terms of its ability to comply with the substantive standards of potential ARARs Federal and state regulations were reviewed to identify potential ARARs and To Be Considered (TBC) criteria ARARs include

bull Any standard requirement criterion or limitation under any Federal environmental law such as the Toxic Substances Control Act (TSCA) the Clean Air Act (CAA) the Clean Water Act (CWA) the Marine Protection Research and Sanctuaries Act (MPRSA) and the Resource Conservation and Recovery Act (RCRA)

bull Any promulgated standard requirement criterion or limitation under a state environmental or facility siting law including those contained in EPA-approved programs which has been identified by the state to EPA in a timely manner

US EPA Region 3 Sauer Dump Site EECA 2-1 HydroGeoLogic Inc April 2009

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HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

ARARs consist of two sets of requirements those that are applicable and those that are relevant and appropriate Applicable requirements are those substantive standards that specifically address the situation at a CERCLA site However an applicable requirement need not have been promulgated specifically to apply to CERCLA sites When making a determination of the applicability of a requirement the site circumstances are compared to the following jurisdictional prerequisites

bull Who is subject to the statute or regulation bull What types of substances or activities fall under the authority of the statute or

regulation bull What is the time period for which the statute or regulation is in effect and bull What types of activities does the statute or regulation require limit or prohibit

If this comparison indicates that the site circumstances are consistent with these prerequisites the requirement is applicable Requirements that are not applicable must be evaluated further to determine whether they are relevant and appropriate Requirements that address situations sufficiently similar to the proposed response action and are well suited to the conditions of the site are considered to be relevant In some cases only portions of a requirement will be both relevant and appropriate In addition to the ARARs information that is provided in certain federal and state criteria advisories guidance and proposed standards though not legally enforceable can be helpful in selecting a removal action andor determining how protective the removal action will be These ldquoto be consideredrdquo (TBC) requirements complement the use of ARARs but do not compete with or replace them (EPA 1992) Potential chemical-specific location-specific and action-specific ARARs for the Site along with potential TBC requirements are summarized in Table 21 These ARARs and TBC requirements are considered potential because they become final only after the EECA is approved and issued The following sections provide additional details on potential federal and state ARARs and TBC requirements for the Site

221 Chemical-Specific ARARs

As stated in 52 Federal Register 32496 chemical-specific ARARs typically ldquoset health or risk-based concentration limits or discharge limitations in various environmental media for specific hazardous substances pollutants or contaminantsrdquo These ARARs may address contaminants in the specific media of concern (soils and sediments in this case) or contaminants in waste streams generated by a removal alternative The potential chemical-specific ARARs are described below

Toxic Substances Control Act - TSCA regulates chemical substances and mixtures whose manufacture processing distribution or disposal might present an unreasonable risk of injury

US EPA Region 3 Sauer Dump Site EECA 2-2 HydroGeoLogic Inc April 2009

AR103658

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

to human health and the environment Portions of TSCA (specifically 40 CFR Part 761) address PCB cleanup levels remediation methods and remediation waste and are applicable to this Site 40 CFR sect 76161 provides cleanup and disposal options for PCB remediation waste and includes self-implementing procedures for a general moderately-sized site where there should be low residual environmental impact from remedial activities 40 CFR sect 76161(a)(1) indicates that the listed ldquoself-implementing proceduresrdquo are not binding on CERCLA actions and may not be used without prior EPA approval to clean up among other things sediments surface water groundwater or drinking water sources However these ldquoself-implementingrdquo provisions are relevant and appropriate for consideration when selecting a cleanup alternative for this Site

Resource Conservation and Recovery Act - RCRA as amended 42 USC sectsect6901 et seq defines hazardous waste and regulates its handling and disposal RCRA could be applicable to the Sauer Dump Site because some of the Site soils and sediments may be hazardous and would require handling storage treatment and disposal as hazardous wastes In addition it is possible that spent carbon from any off-gas or sediment dewatering treatment units might be considered a hazardous waste

Clean Air Act - The CAA governs air emissions generated by removal or remedial activities at CERCLA sites National Ambient Air Quality Standards (NAAQS) that are found in 40 CFR Part 50 have been promulgated under the CAA for six criteria pollutants including airborne particulates Air quality standards that would potentially be applicable to the Site include those for lead and particulate matter The associated Maryland Implementation Plans for the Attainment and Maintenance of NAAQS (40 CFR Part 52 sectsect 1070-1118 Subpart V) codify Marylandrsquos Implementation Plan for attaining the NAAQS The CAA is applicable to any remedy that causes the emission of pollutants including airborne particles In particular dust suppression measures must be included in any remedy that involves constructionearth moving activities

Clean Water Act - The CWA sets water quality criteria at levels that are protective of human health and of aquatic life in streams lakes and rivers CWA criteria will be considered applicable for the removal alternatives that might affect the water quality in the nearby wetlands or Back River These alternatives would include removal technologies that could impact stormwater quality or that generate water requiring discharge

Code of Maryland Regulations (COMAR) Title 26 - Title 26 of COMAR is promulgated by MDE and the relevant provisions which may be applicable or relevant and appropriate for consideration at the Site are listed below

bull COMAR 2608 Water PollutionndashThis regulation establishes criteria and standards for

discharge limitations and degradation of waters of the state It is potentially applicable to any alternatives that include discharge of treated groundwater into surface water

bull COMAR 2611 Air Regulations-This regulation provides ambient air quality standards general emissions standards and restrictions for air emissions from construction

US EPA Region 3 Sauer Dump Site EECA 2-3 HydroGeoLogic Inc April 2009

AR103659

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

bull COMAR 2613 Disposal of Controlled Hazardous SubstancesndashProvides criteria to identify hazardous waste and listed waste including Maximum Concentrations of Contaminants for the Toxicity Characteristic

222 Location-Specific ARARs

Location specific ARARs are restrictions on certain types of activities based on Site characteristics Location-specific ARARs govern activities conducted within critical environments such as wetlands endangered or protected species habitats and historic locations

Coastal Zone Management Act (16 USC sectsect 1451 et seq) and Coastal Zone Act Reauthorization Amendments of 1990 - This Act and its Amendments require that any activities that directly affect the coastal zone and are conducted or supported by federal agencies be performed in a manner that is consistent with the approved state coastal zone management program Because the Sauer Dump Site is located in the Maryland coastal zone both the Act and the related Amendments are applicable to the Site All activities must be performed to the extent practicable in a manner consistent with Marylandrsquos coastal zone management program and MDE must be consulted during EPArsquos determination of whether the activities are appropriate

National Recommended Water Quality Criteria (NRWQC) - The National Recommended Water Quality Criteria are a compilation of all EPArsquos recommended ambient water quality criteria for the protection of aquatic life and human health (EPA 2006) These criteria are applicable to the Site because the groundwater discharges to the Back River and Site sediments and soils currently impact surface water quality in the Back River

COMAR 262302 ndash Provides for a comprehensive watershed management plan to protect from an individual or cumulative effect that degrades the sensitive nature of the aquatic ecosystem This provision could be applicable to any alternative that could have a detrimental impact on water quality standards or which degrades surface or ground water quality

223 Action-Specific ARARs

Action-specific ARARs are usually technology or activity based directions or limitations that control actions taken at hazardous waste sites Action-specific ARARs are triggered by the types of actions under consideration Potential action-specific ARARs are identified below Resource Conservation and Recovery Act ndash RCRA could be applicable to various activities that could be part of a removal alternative because some of the Site soils and sediments might be classified as hazardous waste If the chosen removal alternative results in generation of a waste stream the substantive standards of RCRA could apply to that waste stream The following parts of the RCRA regulations are considered potentially applicable to the activities at the Sauer Dump Site

US EPA Region 3 Sauer Dump Site EECA 2-4 HydroGeoLogic Inc April 2009

AR103660

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

bull 40 CFR Part 261 defines hazardous waste and identifies characteristic and listed wastes

that would be considered hazardous bull 40 CFR sectsect 26210-44 establish standards for hazardous waste determinations

manifesting pre-transport requirements and other activities that are carried out by hazardous waste generators

bull 40 CFR sectsect 264111-120 establish standards for the closure of and post-closure care for sites containing hazardous wastes

bull 40 CFR sectsect 264300-310 establish standards for owners and operators of facilities that store or dispose of hazardous waste in landfills These sections are applicable to remedies that include landfilling (on-site or off-site) of contaminated soils and sediments

bull 40 CFR sectsect 264340-351 establish standards for owners and operators of facilities that store or treat hazardous waste in incinerators These sections are applicable to remedies that include low temperature thermal desorption andor incineration of soils and sediments

bull 40 CFR sectsect 26310-31 establish standards applicable to transporters of hazardous waste bull 40 CFR Part 270 establishes the hazardous waste permit program The substantive

requirements of the permit program would be met but no permit would be obtained for on-site activities Any off-site treatment andor disposal options proposed as part of a removal alternative must include use of a RCRA-permitted treatment storage or disposal facility for materials determined to be hazardous

US Department of Transportation Hazardous Material Regulations (49 CFR Parts 171-174 177 178 and 180) - These regulations establish requirements for labeling packaging and shipping hazardous materials All hazardous wastes that are transported off-site must be handled in accordance with these regulations

National Pollutant Discharge Elimination System Requirements (40 CFR Part 122 - These regulations implement sectsect 318 402 and 405 of CWA 33 USC sectsect 1251 et seq and address all pollutant discharges into the nationrsquos waters Wastewater generated during construction activities or as part of a selected treatment option must be managed in accordance with the substantive requirements of CWA

COMAR Title 26 - The following regulations in Title 26 of COMAR are potential action-specific ARARs at the Site

bull COMAR 2602 Occupational Industrial and Residential Hazards ndash Provides limits on

the maximum allowable levels of noise at the Site boundaries during Site remediation work to protect the health general welfare and property of the people of the State

bull COMAR 2604 Regulation of Water Supply Sewage Disposal and Solid Wastendash Provides specifications for well construction and abandonment and for proper closure and post closure monitoring and maintenance of landfills

US EPA Region 3 Sauer Dump Site EECA 2-5 HydroGeoLogic Inc April 2009

AR103661

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

bull COMAR 2613 Disposal of Controlled Hazardous Substances ndash Provides for the design installation and operation of a groundwater monitoring system capable of detecting any potential off-site migration of hazardous substances

bull COMAR 2617 Water Management ndash Requires that any land clearing grading or other earth disturbances which disturb over 5000 square feet of land area and over 100 cubic yards of earth have an erosion and sediment control plan Provides that stormwater must be managed to prevent off-site sedimentation

Occupational Safety and Health Administration (OSHA) Hazardous Waste Operator Regulations (29 CFR Parts 1904 1910 and 1926) - These regulations establish requirements for personnel working on projects involving the handling andor disposal of hazardous wastes Although the OSHA regulations are not ARARs all work performed at the Site must be done in accordance with these regulations All workers with a potential to be exposed to hazardous substances as a result of their work on Site activities must be properly trained and certified as required under these regulations

224 To Be Considered Materials

The following are sources of information that are to be considered during the development of a remedy for the Sauer Dump Site

Oak Ridge National Laboratory Regional Screening Levels - The Oak Ridge National Laboratory (ORNL) Regional Screening Levels (RSLs) provide soil concentrations that are associated with a cancer risk of 1E-06 or a non-cancer hazard quotient of 1 for a standard resident exposure (residential soil RSLs) or industrial worker exposure (industrial soil RSLs) In addition this table provides toxicological information that can be used in the development of PRGs to protect human health

Oak Ridge National Laboratory Ecotoxicological Screening Benchmarks (1997) - This document provides non-enforceable ecological toxicity screening levels considered protective of different ecological receptors These values will be considered in the development of ecological PRGs for the Sauer Dump Site

EPA Ecological Soil Screening Levels - For a number of chemicals EPA has developed soil concentrations that are considered protective of different ecological receptors These values will be considered in the development of ecological PRGs for the Sauer Dump Site

Maryland Department of the Environment Residential Soil Cleanup Standards - These standards include an approach to develop numeric Cleanup Standards for hazardous substances in soils and provide information on use of the Standards in the conduct of remedial actions Information in these standards will be used in the development of PRGs

1994 Revised Interim Soil Lead Guidance for CERCLA Sites and RCRA Corrective Action Facilities August 1998 - This guidance establishes cleanup criteria for lead in soils These criteria will be considered in the development of lead PRGs

US EPA Region 3 Sauer Dump Site EECA 2-6 HydroGeoLogic Inc April 2009

AR103662

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

National Oceanographic and Atmospheric Administration Effects Range-Low Benchmarks - The Effects Range-Low benchmark values indicate sediment concentrations below which adverse effects to the benthic organisms rarely occur They serve as non-enforceable ecological toxicity screening levels These values will be considered in the development of ecological PRGs for the Sauer Dump Site

EPA Region III Freshwater Sediment Screening Values - The EPA Region III Freshwater Sediment screening values provide sediment concentrations conservatively determined to be protective of benthic organisms These benchmarks will be considered in the development of sediment PRGs

23 DETERMINATION OF PRELIMINARY REMEDIAL GOALS AND DESCRIPTION OF CONTAMINATED MEDIA

231 Development of Preliminary Remedial Goals (PRGs)

PRGs are concentrations used as initial cleanup goals to support the development and evaluation of different remedial approaches PRGs are not the final cleanup standards The following PRGs were used to identify the area and volume of contaminated media to be addressed by the EECA

bull 400 mgkg lead in soils bull 1 mgkg total PCBs in soils bull 1 mgkg total PCBs in sediments and bull 130 mgkg lead in sediments

The PRGs for lead and total PCBs in soils are consistent with other sites within EPA Region III where remediation goals of 400 mgkg lead and 1 mgkg PCBs in soils have been established based on results of those sitesrsquo baseline risk assessments The PRG for PCBs in sediments 1 mgkg is based on the practical engineering limitations of available dredging technologies For sediments the lead PRG of 130 mgkg reflects consideration of Development and Evaluation of Consensus-Based Sediment Quality Guidelines for Freshwater Ecosystems (MacDonald et al 2000) as noted in the August 2007 Action Memorandum (EPA 2007) The surface water PRGs are based on NRWQC The Freshwater Chronic values of 0000064 ugl total PCBs and 81 ugl lead were selected for surface water at this Site Because groundwater at the Site will not be used as a source of drinking water the primary concern is to ensure that groundwater contaminants do not discharge to surface water at concentrations which would result in impairment of the surface water quality Accordingly the Freshwater Chronic NRWQC are also appropriate as the groundwater PRGs The surface water and groundwater PRGs are provided in Table 22

US EPA Region 3 Sauer Dump Site EECA 2-7 HydroGeoLogic Inc April 2009

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232 Volume Estimates ndash Soils and Sediments

To determine the volume of soils and sediments requiring remediation data from the following reports were used RIFFS Report (ENSAT 2002a) RI Report (ENSAT 2005) and EOCS Report (Malcolm Pirnie 2007) The data in these reports were compared to the PRGs presented in Table 22 Subsurface data were used to estimate the vertical extent of contamination requiring remediation The depth of the remedial volume is based on comparison of soil contaminant concentrations to both human health and ecological PRGs even though under current conditions these receptors would not be exposed to the subsurface contaminants In the future construction activities could result in turn over of the soils leading to the exposure of subsurface soils and thereby allowing ecological receptors (worms plants fish and wildlife) and non-construction worker receptors (child visitor) to come into direct contact with the associated contaminants If the remedial volume does not consider this subsurface contamination then land use controls to prevent all future construction and excavation activities at the Site would be required Locations and depths where contaminants were detected at concentrations in excess of the PRGs are included in the estimated area and volume requiring remediation The lateral extent of soil contamination greater than PRGs was estimated from the surface soil data When calculating the volume of soils requiring remediation it is typically assumed that future construction could be reasonably expected to disturb soils as deep as 10 to 12 feet or to the average depth of the groundwater table in the area in question Where no subsurface soil data were available the depth of contamination requiring remediation was generally assumed to be 8 feet bgs In the southern portion of Parcel 425 a depth of 35 feet was assumed based on data defining the depth to groundwater On Parcel 137 an average remediation depth of 4 feet was assumed The available data indicate that portions of Parcels 137 295 425 464 503 and 574 are characterized by soil contamination in excess of the PRGs (Figures 14 and 15) The estimated maximum volume of Site soils requiring remediation is approximately 16760 cubic yards For sediments the remedial volume was based on an assumed remediation depth of 4 feet in areas with wetland vegetation It is estimated that a total of 7740 cubic yards of sediments will require remediation Additional sediment volumes from the Back River might require remediation but the only sample that showed concentrations greater than those proposed for the Site was collected in 1999 There have been other samples in the immediate area of this sample that did not have PCBs in excess of the PRGs and it is likely that the sediments that were sampled in 1999 have been washed to other areas given the tidal and stream transport that would have occurred since that time Additional sampling of the Back River sediments should be performed to confirm that the sediments do not exceed the PRGs

US EPA Region 3 Sauer Dump Site EECA 2-8 HydroGeoLogic Inc April 2009

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US EPA Region 3 Sauer Dump Site EECA 2-9 HydroGeoLogic Inc April 2009

Table 23 summarizes the estimated area and volume of soils and sediments requiring remediation

233 Groundwater Management

Based on observed groundwater elevations across the Site groundwater is generally assumed to flow from north to south across the Site with discharge into the Back River However groundwater is influenced by the tidal movements of the Back River Consequently in those alternatives where a groundwater management feature was required the use of point extraction wells was avoided to minimize the extraction and treatment of water from the Back River and the adjacent wetlands In these instances gravel filled groundwater recovery trenches were specified to capture Site groundwater prior to its discharge into the river

AR103665

TABLES

AR103666

Table 21 Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 1 of 10

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Dundalk B

altimore C

ounty MD

ARAR or TBC Citation ARAR Class Requirement Synopsis Applicability to Proposed Remedies

I CHEMICAL SPECIFIC Toxic Substances Control Act (TSCA)

15 USC sectsect 2601 et seq 40 CFR Part 761

Applicable TSCA regulates chemical substances and mixtures whose manufacture processing distribution or disposal might present an unreasonable risk of injury to human health and the environment

Portions of the TSCA deal specifically with PCB remediation waste The self-implementation requirements are not binding on CERCLA actions and may not be used to address contamination in sediments surface water or groundwater without EPA approval TSCA also provides performance-based and risk-based methods for addressing PCB-contaminated remediation waste

Resource Conservation and Recovery Act of 1976 Hazardous and Solid Waste Amendments of 1984

42 USC sectsect6901 et seq

Applicable Identifies what constitutes a hazardous waste

Some of the Site soils and sediments may be hazardous and would be treated as hazardous wastes Spent carbon from any off-gas treatment units might be considered a hazardous waste

Clean Air Act 42 USC sect7401 40 CFR Part 50

Applicable NAAQS are promulgated under the CAA for six criteria pollutants including airborne particulates

CAA is applicable to any remedy that causes the emission of pollutants including airborne particles Air quality standards potentially applicable to the Site include those for lead and particulate matter

Maryland Implementation Plans for the Attainment and Maintenance of National Ambient Air Quality Standards

40 CFR Part 52 sectsect 1070-1118 Subpart V

Applicable Codify Marylandrsquos Implementation Plan for attaining the NAAQS

Applicable to determining compliance with the CAA

Maryland air quality regulations

COMAR 2611 Applicable Promulgates air quality regulations for Maryland

Requirements for emissions of toxic air pollutants and particulates are potentially applicable to Site remedies involving soil excavation or on-site treatment of media

US E

PA

Region 3

AR103667

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

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CA

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ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

Clean Water Act (CWA)

33 USC sectsect 1251 et seq

Applicable Water quality criteria set at levels to protect human health and aquatic life in streams lakes and rivers

Applicable to any portion of remedy which may affect the water quality in the nearby wetlands or Back River This includes remedial construction activities that could impact stormwater quality and remedies that generate water requiring discharge

Maryland Water Pollution Regulations

COMAR 2608 Applicable Establishes criteria and standards for discharge limitations and policy for anti-degradation of waters of the State

Potentially applicable to any remedies that have impact on the Sitersquos groundwater and surface water include discharge to surface or ground water

Maryland Disposal of Controlled Hazardous Substances

COMAR 2613 Applicable Provides criteria to identify hazardous waste and listed waste including Maximum Concentrations of Contaminants for the Toxicity Characteristic

Some of the Site soils and sediments may be hazardous and would be treated as hazardous wastes

National Recommended Water Quality Criteria

NA Applicable Provides a compilation of ambient water quality criteria for the protection of aquatic life and human health

Applicable to groundwater that discharges to the Back River and to the surface water of the Back River itself

ORNL RSLs NA To be considered

Non-enforceable soil concentrations that are protective of human health under a given set of exposure circumstances (residential vs industrial)

The ORNL RSLs provide soil concentrations that are associated with a cancer risk of 1E-06 or a non-cancer hazard quotient of 1 for a standard resident exposure (residential soil RSLs) or industrial worker exposure (industrial soil RSLs) In addition this table provides toxicological information that can be used in the development of PRGs to protect human health

ORNL Ecotoxicological Screening Benchmarks

NA To be considered

Provides non-enforceable benchmark values protective of specific ecological receptors

These benchmarks will be considered in the development of ecological PRGs for the Sauer Dump Site

US E

PA

Region 3

AR103668

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

p Site EE

CA

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ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

EPA Ecological Soil Screening Levels

NA To be considered

Non-enforceable screening levels protective of specific ecological receptors

These benchmarks will be considered in the development of ecological PRGs for the Sauer Dump Site

Maryland Department of the Environment (MDE) Residential Soil Cleanup Standards

State of Maryland Department of the Environment cleanup Standards for Soil and Groundwater August 2001

To be Considered

Include approach to develop numeric Cleanup Standards for hazardous substances in soils and provide information on use of the Standards in the conduct of remedial actions

Will be considered in development of soil PRGs

1994 Revised Interim Soil Lead Guidance for CERCLA Sites and RCRA Corrective Action Facilities August 1998

OSWER Directive 92004-27P

To be Considered

Establishes cleanup criteria for lead in soils

Will be considered in development of soil PRGs

National Oceanographic and Atmospheric Administration Effects Range-Low Benchmarks

NA To be Considered

The Effects Range-low benchmark values indicate the concentrations below which adverse effects to the benthic organisms rarely occur They serve as non-enforceable ecological toxicity screening levels for use in determining ecological PRGs

These values will be considered in the development of ecological PRGs for the Sauer Dump Site

US E

PA

Region 3

AR103669

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

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CA

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ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

EPA Region III Freshwater Sediment Screening Values

To be Considered

These values provide conservative benchmarks for the protection of benthic organisms

These values will be considered in the development of ecological PRGs for the Sauer Dump Site

II LOCATION SPECIFIC Coastal Zone Management Act of 1972 Coastal Zone Act Reauthorization Amendments of 1990

16 USC 1451 et seq 15 CFR Part 930

Applicable Requires that activities directly affecting the coastal zone that are conducted or supported by federal agencies are conducted in a manner that is consistent with the approved State coastal zone management program

Because the Sauer Dump Site is located in the Maryland coastal zone both the Act and the related Amendments are applicable to the Site Removal action activities will be consistent to the maximum extent practicable with Marylandrsquos coastal zone management program

Maryland Nontidal Wetlands and Tidal Wetlands

COMAR 262302 Applicable Provides for a comprehensive watershed plan to protect from an individual or cumulative effect that degrades the sensitive nature of the aquatic ecosystem

Removal activities to address sediment contamination would likely affect wetlands

III ACTION SPECIFIC Resource Conservation and Recovery Act

40 USC sectsect 6901 et seq

See below See below RCRA could be applicable to various activities that could be part of a selected remedy for the Site because Site soils might be hazardous These regulations are applicable to contaminated Site materials as well as wastes generated during the implementation of the selected remedy The following parts of the RCRA regulations are considered applicable to the activities at the Site if the soils and sediments and debris meet the definition of hazardous waste

US E

PA

Region 3

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for Sauer Dump Site

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ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

a Standards Applicable to Generators of Hazardous Waste

40 CFR sectsect 26210-58 Applicable Establishes standards for generators of hazardous wastes including waste determination manifests and pre-transport requirements

Applicable to contaminated Site materials and wastes generated during the implementation of the selected remedy

b Standards for closure and post-closure of hazardous waste sites

40 CFR sectsect 264111-120 Applicable Establish standards for the closure of and post-closure care for sites containing hazardous wastes

Applicable to Alternatives 2 and 3

c Standards for owners and operators of facilities that store or dispose of hazardous waste in landfills

40 CFR sectsect 264300-310 Applicable Requirements for storage or disposal of hazardous waste in landfills

Applicable to on-site or off-site landfilling of soils and sediments

d Standards for owners and operators of facilities that store or treat hazardous waste in incinerators

40 CFR sectsect 264340-351 Applicable Requirements for storage or treatment of hazardous waste in incinerators

Applicable to low temperature thermal desorption andor incineration of soils and sediments

e The Hazardous Waste Permit Program

40 CFR Part 270 Applicable Requires a permit for the treatment storage or disposal of any hazardous waste as identified or listed in Part 261

Any substantive requirement would be met but no permit would be required for on-site activities Any off-site treatment andor disposal options proposed as part of a removal alternative must include use of a RCRA-permitted treatment storage or disposal facility for materials determined to be hazardous

f Standards Applicable to Transporters of Hazardous Wastes

40 CFR sectsect 26310-31 Applicable Establishes standards applicable to transporters of hazardous waste

Applicable to any hazardous wastes (soils sediments spent media etc) transported off-site

US E

PA

Region 3

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for Sauer Dump Site

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CA

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ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

g Identification and Listing of Hazardous Wastes

40 CFR Part 261 Applicable Defines hazardous waste and identifies characteristic and listed wastes that would be considered hazardous

Would be used to make waste determinations

Occupational Safety and Health Administration (OSHA) Hazardous Waste Operator (HAZWOPER) Regulations

29 CFR Parts 1904 1910 and 1926

Not and ARAR but must be complied with

Establishes worker training and safety requirements for projects involving the handling of hazardous materials

All work on the Site would be done in accordance with these regulations All workers with a potential to be exposed to hazardous substances as a result of their work on Site activities must be properly trained and certified as required under these regulations

US Department of Transportation (DOT) Hazardous Material Regulations

49 CFR Parts 171-174 177 178 and 180

Applicable Establishes requirements for labeling packaging and transporting hazardous materials

Any hazardous materialswastes that are shipped off-site would be handled in accordance with DOT regulations

Clean Water Act (CWA) and National Pollutant Discharge Elimination System Requirements

33 USC sectsect 1251 et seq 40 CFR Part 122

Applicable Address all pollutant discharges into the nationrsquos waters

Wastewater generated during construction activities or as part of a selected treatment option would be managed in accordance with CWA

Maryland Regulations governing Occupational Industrial and Residential Hazards

COMAR 2602 Applicable Provides limits on maximum noise levels allowed during site remediation work

Applicable to any potential soil or sediment remedies involving construction or other noisy equipment

Maryland Regulation of Water Supply Sewage Disposal and Solid Waste

COMAR 2604 Applicable Regulates the construction and operation of solid waste landfills and the construction and abandonment of wells

Potentially applies to remedies that involve off-site disposal or on-site containment of solid wastes Applies to construction or abandonment of groundwater wells and releases to groundwater or surface water

US E

PA

Region 3

AR103672

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

US E

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Region 3

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ARAR or TBC Citation ARAR Class Requirement Synopsis Applicability to Proposed Remedies

Maryland Disposal of Controlled Hazardous Substances

COMAR 2613 Applicable Establishes standards for generators of hazardous waste and provides regulation for the transport and disposal of hazardous waste

Some of the soils and sediments on-site may be characterized as hazardous waste Transportation and disposal of these wastes would comply with the substantive requirements of these regulations

Maryland Water Management

COMAR 2617 Applicable Requires that any land clearing grading or other earth disturbances that covers over 5000 sq ft and over 100 CY of soil have an erosion and sediment control plan

Potentially applicable to remedies with large areavolume of soil disturbance such as soil removal or surface cap construction

AR103673

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Table 22

Preliminary Remediation Goals for Sauer Dump Site

US EPA Region 3 Sauer Dump Site EECA Sheet 1 of 1 HydroGeoLogic Inc April 2009

Chemical PRG Basis of PRG Soil

Total PCBs 1 ppm TSCA Cleanup Levels for High Occupancy Areas and

Accepted Region III Practice

Lead 400 mgkg EPA Residential Soil Screening Levels for Lead (EPA

1994) and Accepted Region III Practice Sediments

Total PCBs 1 ppm Practical engineering limitations of dredging

technologies and Accepted Region III Practice

Lead 130 mgkg Development and Evaluation of Consensus-Based

Sediment Quality Guidelines for Freshwater Ecosystems (MacDonald et al 2000)

Surface WaterGroundwater

Total PCBs 0000064 ugl NRWQC Human Health for Consumption of

Organism Only

Lead 81 ugl NRWQC Criterion Continuous Concentration mgkg = milligrams per kilogram NRWQC = National Recommended Water Quality Criteria 2006 ppm = parts per million ugl micrograms per liter TSCA = Toxic Substances Control Act

AR103674

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Table 23 Estimated Extent of Site Contamination for Sauer Dump Site

Region of Contamination Area

(square feet) Depth1) (feet)

Volume (cubic yards)

Soils

Parcel 464 and 503 10810 8 3200

Parcel 295 1010 8 300

Parcel 137 7480 4 1110

Northern Portion of Parcel 425 34220 8 10140

Southern Portion of Parcel 425 15540 35 2010

Parcel 5742) 0 0 0

Total 69060 - 16760

Sediments

Total 52240 4 7740 (1) Depths based on available subsurface soil analytical data and depth to groundwater The depth in the wetland areas was assumed to

be 4 ft (2) No soil data was available for Parcel 574 Only contaminated sediments were detected on this parcel As a result all excavation

volumes related to this parcel are included in the sediment area and volume numbers only

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HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

30 IDENTIFICATION AND SCREENING OF TECHNOLOGY TYPES AND PROCESS OPTIONS

General Response Actions (GRAs) and specific technology types and Technology Process Options (TPOs) within each GRA type are defined in this section The phrase ldquotechnology process optionsrdquo refers to specific processes within each of the general technology types For example TPOs within the ldquotreatmentrdquo GRA include chemical oxidation and soil washing GRAs are introduced in Section 31 In Section 32 potential remedial technologies are identified within each of the General Response Actions The identified TPOs are first pre-screened based on technical feasibility for the Site In Section 33 TPOs retained from the initial pre-screening are screened for effectiveness implementability and cost The TPOs that remain after the latter screening are summarized in Section 34 These remaining TPOs will be used in assembling removal alternatives for the Site

31 GENERAL RESPONSE ACTIONS (GRAS)

GRAs are medium-specific generic types of remedial actions that can alone or in combination achieve the RAOs established for the Site GRAs proposed for the Site include the following

No Action - No action GRA implies that the Site is left in its present condition This response action provides a background against which all other remedies can be compared A no action alternative is required for consideration by the NCP

Institutional Controls - Institutional controls (ICs) can reduce human health risks from Site contaminants by restricting land use or activities at the Site ICs will not reduce ecological risks ICs contribute to the effectiveness of remedial systems through preventing activities or land uses which may interfere with the systemrsquos operation

Containment - Containment refers to physical processes that would restrict contaminant mobility without changing their concentration or toxicity Containment protects human health and minimizes ecological risk by controlling the routes of exposure

Treatment - Treatment may include any physical chemical or biological processes that would lower human health or ecological risk from the contaminants by their destruction or conversion into less hazardous forms

Removal - Removal includes physically removing contaminated soils as an initial step for treatment andor disposal

Disposal - Disposal involves methods to discard the treatment by-product or removed soils off-site in accordance with all applicable regulations

Applicable technologies associated with each of the above GRAs are discussed below

US EPA Region 3 Sauer Dump Site EECA 3-1 HydroGeoLogic Inc April 2009

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32 IDENTIFICATION AND SCREENING OF POTENTIALLY APPLICABLE TECHNOLOGIES

A range of technology types and process options was identified and pre-screened according to their overall applicability to the primary contaminants and conditions present at the Site For each GRA one or more technology types and associated TPOs were identified The initial screening results are summarized in Tables 31 and 32 Some of the sources consulted during the identification of technologies include reference documents published by EPA feasibility studies for similar sites standard engineering texts and professional experience

33 EVALUATION OF POTENTIAL REMEDIAL TECHNOLOGIES

In this subsection each of the technologies retained in Tables 31 and 32 is described and evaluated in greater detail based on its effectiveness implementability and cost Based on this evaluation the technology is either retained for further evaluation or eliminated Each of the three criteria is briefly defined below

Effectiveness ndash The ability of a technology to meet the removal objectives for protection of human health and the environment

Implementability ndash Technical and administrative feasibility of implementing the technology TPOs that are not technically feasible at the Site were eliminated during the pre-screening step in Section 32 During this evaluation the remaining TPOs are compared based on such considerations as the availability of treatment storage and disposal services and the necessary equipment and skilled workers to implement the technology

Cost ndash A relative estimate of the cost of implementing the technology This is based on engineering judgment and available reference sources Cost are given as very low low moderate or high relative to other process options

331 No Action

Description ndash The no-action option consists of leaving the Site as it is without any removal activities Effectiveness ndash This response does not meet the removal objectives and would not be protective of human health or the environment Implementability ndash No actions are required to implement this option Cost ndash No costs are associated with this option Recommendation ndash The No Action option was retained to provide a baseline for the comparison of other removal alternatives

US EPA Region 3 Sauer Dump Site EECA 3-2 HydroGeoLogic Inc April 2009

AR103678

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332 Institutional Controls

ICs do not reduce contaminant toxicity mobility or mass They do reduce or eliminate the potential for human exposure and can help protect existing and future remedial measures Because the PRGs are based on non-residential Site use all remedial alternatives must include ICs to prevent future development of the Site for residential purposes The proposed ICs include deed noticesrestrictions public informationawareness programs security fencing and monitoring of Site conditions

3321 Deed NoticesRestrictions

Description ndash Deed noticesrestrictions may be used to provide potential future purchasers of affected properties with notice of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site to define acceptable land use to prevent specific activities and to require specific engineering controls in order to eliminate or minimize human exposure to Site-related contaminants Deed noticesrestrictions may also be used to protect the integrity of removal systems Effectiveness ndash Deed noticesrestrictions defining acceptable land uses(s) and placing limits on excavation or intrusive activities would be effective in minimizing human exposure to the contaminants in soils and sediments at the Site Additional restrictions could be enacted to protect existing and future remedial systems Deed noticesrestrictions would not reduce potential environmental risks nor would they decrease contaminant toxicity mobility or volume This option would be more effective in combination with other removal options Implementability ndash Deed noticesrestrictions could be easily implemented at the Site Legal involvement would be needed for preparation of the deed noticesrestrictions It would also be necessary to obtain agreement from the owners of the affected properties to allow deed noticesrestrictions to be filed with the Recorder of Deeds for Baltimore County or other office where land ownership and transfer records are maintained Cost ndash Costs associated with implementing deed noticesrestrictions would be very low Recommendation ndash This option was retained for use in conjunction with other removal measures

3322 Access Agreements

Description ndash Access agreements are used to ensure continued Site access for monitoring Site conditions and operating or maintaining removal systems Because of the need to implement ICs to maintain non-residential land use continued access for Site monitoring will be required Depending on the removal alternative selected for implementation additional access may be required for system operation and maintenance

US EPA Region 3 Sauer Dump Site EECA 3-3 HydroGeoLogic Inc April 2009

AR103679

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Effectiveness ndash Access agreements for monitoring and maintenance activities would not reduce the toxicity mobility or volume of the contaminants at the Site but they are necessary for successful implementation of other removal options at the Site Implementability ndash Access agreements can be easily implemented at the Site Cost ndash The cost of securing access agreements for the Site would be very low Recommendation - Access agreements were retained for further consideration in combination with other removal options

3323 Monitoring of Site Conditions

Description ndash Monitoring includes Site inspection and collection of environmental samples Because Alternatives 2 and 3 would include ICs to restrict land use to non-residential purposes Site inspections would be required to confirm IC implementation Depending on the removal alternative additional monitoring such as sample collection may be required to assess remedial system performance Effectiveness ndash While monitoring activities would not reduce the risks associated with the contaminants or the toxicity mobility or volume of the contaminants at the Site these activities are necessary for successful implementation of other removal options and for demonstrating attainment of removal objectives Monitoring would be more effective in combination with other removal options Implementability ndash Monitoring can be easily implemented Cost ndash The cost of monitoring Site conditions would be very low to low Recommendation ndash Monitoring of Site conditions was retained for further consideration in combination with other removal options

3324 Security Fencing

Description ndash The Site has a chain link security fence around the perimeter of the former operational area (Parcel 425) This option would involve either maintenance of the existing fence or construction of a new fence should implementation of the removal alternative require dismantling of the current fence or if additional areas need to be included within the fence Effectiveness ndash A security fence can be an effective means of decreasing the potential for human contact with the contamination on Parcel 425 The security fence would not effectively protect ecological receptors nor would the fence decrease contaminant mobility toxicity or volume

US EPA Region 3 Sauer Dump Site EECA 3-4 HydroGeoLogic Inc April 2009

AR103680

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Implementability ndash Maintenance of the current fence or replacement of the fence following removal action implementation would be easy to implement Cost ndash The cost of security fencing at the Site would be very low to low Recommendation - Security fencing was retained for further consideration in combination with other removal options

3325 Public Awareness and Information Programs

Description ndash Public meetings would be held to inform the public of risks associated with the Site contamination Fact sheets would be used to disseminate information about the Site In addition warning signs would be used to warn potential trespassers of Site dangers Effectiveness ndash The public meetings and fact sheets may be an effective method for decreasing the potential for local residents to contact the contaminated soils or sediments but would not be effective for potential receptors that do not live near the Site The warning signs would be an effective means of decreasing the potential for humans to contact the contaminated soils and sediments on Parcel 425 These measures would not reduce environmental risks or the toxicity mobility or volume of the Site contaminants Implementability ndash Public awareness levels are fairly high in the area Presentation of Site updates via additional public meetings and fact sheets would be easily implemented Additional signage for the Site could be easily obtained and installed Cost ndash The cost of public awareness and information programs would be very low Recommendation - Public awareness and information programs were retained for further consideration in combination with other removal options

333 Containment

Containment involves installation of physical barriers to prevent further migration of contaminants in the soils and sediments and to eliminate the routes of exposure to humans and ecological receptors Only surface horizontal barriers (covers) were retained by the initial screening in Section 32 Surface caps were not retained for sediments because the capping process would destroy the wetlands necessitating construction of replacement wetlands as a mitigation measure The covers retained by the initial screening are described below

3331 Multi-Layer Cover

Description ndash A multi-layer surface cover such as a RCRA Subtitle C cap is appropriate for hazardous waste applications This type of cap generally includes an upper vegetative (topsoil) layer a drainage layer a synthetic membrane and a low permeability barrier layer placed over a foundation layer of sand or native soils The barrier layer can be constructed with low-

US EPA Region 3 Sauer Dump Site EECA 3-5 HydroGeoLogic Inc April 2009

AR103681

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

permeability soil (clay) andor geosynthetic clay liners RCRA Subtitle C caps are typically six foot or more in thickness (Air Force Center for Environmental Excellence 1999) Effectiveness ndash A multi-layer surface cover could achieve the removal objectives by limiting contact of human and ecological receptors with contaminated soils and by preventing contaminant migration through leaching and erosion Because a bottom liner would not be placed beneath the contaminated soils this approach would not prevent tidal influences from raising groundwater into the contaminated subsurface soils The extent to which this process would result in contaminant leaching to groundwater would depend on the contamination depth relative to the potential range of groundwater elevations If the sediments were excavated dewatered and placed beneath the cover this technology could provide an effective means of eliminating the direct contact risks and migration potential associated with the sediment contaminants To ensure continued protection of human health and the environment the cover would require long-term maintenance Because the Site is adjacent to tidally-influenced surface water the cover would be subjected to storm events and flooding which could increase the maintenance requirements and the potential for the cover to be breached or damaged If the cover were breached at some point it would be relatively difficult to reseal From a regulatory perspective a RCRA Subtitle C cap exceeds the requirements of 40 CFR sect 76161 for capping of bulk PCB remediation wastes Implementability ndash A multi-layer surface cover could be implemented with readily available technology and materials This technology is harder to implement than other covers such as asphalt or concrete Maintenance of a multilayer cap would include erosion repair vegetation trimming or removal and possibly animal controlremoval Cost ndash Moderate unit costs of between $500000 and $650000 per acre are typical for multi-layer cover construction Removal of Site debris and consolidation of the contaminated sediments and off-site (non-Parcel 425) soils beneath the cover would increase construction costs Recommendation - This approach was not retained for further analysis because while it would be effective and implementable it exceeds the regulatory requirements for capping of bulk PCB remediation wastes on sites that are being remediated in accordance with 40 CFR sect 76161 and is more expensive than a TSCA cap that would meet the requirements of these regulations

3332 TSCA Compacted Soil Cover

Description ndash A single layer compacted soil cover with a minimum thickness of ten inches The soil must meet minimum specifications outlined in 40 CFR sect 76161(a)(7)

US EPA Region 3 Sauer Dump Site EECA 3-6 HydroGeoLogic Inc April 2009

AR103682

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Effectiveness ndash A compacted soil cover could achieve the removal objectives by limiting contact of human and ecological receptors with contaminated soils and by preventing contaminant migration through leaching and erosion As with the multi-layer cover a compacted soil cover would not prevent tidally-influenced groundwater from rising into the contaminated soil zone and would require long-term maintenance Because of the presence of burrowing animals and the proximity to residences it would be beneficial to include a burrowing barrier to the cap to limit breaching of the cover by animals or children Implementability ndash A compacted soil cover could be implemented with readily available technology and materials Maintenance of the cap would include erosion repair vegetation trimming or removal and possibly animal controlremoval Cost ndash Low to Moderate unit costs of between $150000 and $250000 per acre are typical for compacted soil cover construction Removal of Site debris and consolidation of the contaminated sediments and off-site (non-Parcel 425) soils beneath the cover would increase construction costs Recommendation - This approach was retained for further analysis

3333 Asphalt or Concrete Cover

Description ndash Asphalt and concrete covers consist of an asphalt or concrete layer over the contaminated soils These covers are designed to minimize contact with soils and to limit infiltration of stormwater and surface erosion According to TSCA regulations an asphalt or concrete cover must have a minimum thickness of six inches Effectiveness ndash Concrete and asphalt covers can effectively control erosion reduce soil exposure and minimize precipitation infiltration As with the multi-layer cover a concrete or asphalt cover would not prevent tidally-influenced groundwater from rising into the contaminated soil zone Asphalt and concrete covers are more resistant to erosion and require less maintenance than multi-layer covers (Air Force Center for Environmental Excellence 1999) It would be relatively simple to reseal a concrete or asphalt cap if it were to be breached However the covers would still have the potential for damage due to storm events and flooding Implementability ndash Concrete or asphalt caps could be easily implemented for the on-site soil contamination Maintenance of these caps typically involves the periodic application of sealers and repair of cracks The appearance of these caps can be considered a draw-back and the impact to wildlife would be significant due to loss of habitat Cost ndash Low to Moderate unit costs of between $300000 and $550000 per acre are typical for asphalt or concrete cap construction Removal of Site debris and consolidation of

US EPA Region 3 Sauer Dump Site EECA 3-7 HydroGeoLogic Inc April 2009

AR103683

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

contaminated sediments and off-site (Parcels adjacent to Parcel 425) soils beneath the cover would increase construction costs Recommendation ndash Due to the significant impact on wildlife this treatment option was not retained for further consideration

334 Soils and Sediments Treatment

Soil treatment methods can be subdivided into two general categories in situ and ex situ Ex situ methods involve excavation of the soils before treatment while in situ treatment is performed in place In situ and ex situ treatment methods can rely on chemical physical or biological processes as well as combinations of these All ex situ treatment considerations must take into account the costs for excavation and for some alternatives transportation of soils The treatment processes retained by the initial screening in Section 32 are evaluated below

3341 In Situ Soil Flushing

Description ndash Soil flushing involves flooding contaminated soils with water or a solution to mobilize contaminants The water or liquid solution is injected or infiltrated into the area of contamination The contaminants leach into the watersolution which is then recovered and treated before being re-injected or discharged Effectiveness ndash Even though some of the Site contaminants may be amenable to soil flushing it is unlikely that a single wash fluid would be able to remove all of these chemicals due to their differing physico-chemical characteristics as well as the type of soils (high amounts of fines) Thus application of multiple flush solutions would likely be required Without bench scale or pilot testing it is not known if this technique could achieve all the PRGs for soil contaminants To be effective it is necessary for the flush solution to be distributed throughout the entire treatment zone The potential for the injected fluid to short-circuit the contaminated soils particularly if it is necessary to inject multiple solutions decreases the effectiveness of this TPO Additionally soil flushing would mobilize many of the contaminants in question allowing those contaminants that are not recovered to further impact the groundwater Implementability ndash In situ flushing is well-suited for treatment of contaminants in sandy soils but not for soils with a high amount of fines (ie silts and clays) The surface soils (based on the 2002 geotechnical testing summarized in the August 2005 RI by ENSAT) would be amenable to the flushing as they are 50 to 70 percent sand The subsurface soils however are mainly clays and silts and would require greater volumes of liquid injection In addition the depth to groundwater at the Site is shallow (less than 10 feet below ground surface) and discharges directly to the Back River With the large area requiring treatment it would be difficult to install a fluid injectioncapture system that would allow treatment of the entire soil volume while ensuring that the wash solution and mobilized contaminants are captured before

US EPA Region 3 Sauer Dump Site EECA 3-8 HydroGeoLogic Inc April 2009

AR103684

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

they reach the groundwater and the Back River The greater liquid injection volume would have the effect of increasing the groundwater elevation and thereby increasing the hydraulic gradient between the groundwater and the surface water in the Back River promoting groundwater flux to the Back River Cost ndash High Published costs for large scale projects using soil flushing range from $65 to $200 per cubic yard of treated soil (Interstate Technology and Regulatory Council (ITRC) 2003) Recommendation - In situ soil flushing was not retained for further consideration because of the subsurface soil composition the commingled contamination and the potential to discharge contamination into the Back River

3342 Ex Situ Soil Washing

Description ndash Ex situ soil washing applies the soil flushing concept to excavated soils The technique could also be applied to excavated sediments Effectiveness ndash Ex situ soil washing would eliminate the concerns over the potential for increased contamination of the groundwater and subsequently the Back River associated with the in situ flushing technique Multiple wash fluids however would be required because of the commingled contamination Without bench scalepilot testing it is not known if the PRGs for all soil and sediment contaminants could be achieved Implementability ndash This treatment process would require a large area for implementation The commingled contamination at the Site would require sequential washing steps using different wash formulations andor different soil-to-wash-fluid ratios Treatability studies would be required to determine what combination of washing steps and solutions would be needed to treat the Site soils to the PRGs Additionally because this technology only separates the contamination from the soils a treatment system would need to be constructed for the wash water or the wash water would have to be containerized and transported to an off-site disposal facility Cost ndash Moderate to High Costs for this technology have been reported to range between $50 and $200 per cubic yard (Federal Remediation Technologies Roundtable (FRTR) 2002 ITRC 1997) but the nature of the wastes at the Site could push the costs of implementation to (or possibly above) the high end of this range Recommendation - Because of the complexity of the technology and space requirements ex situ soil washing was not retained

3343 Ex Situ Thermal Desorption

Description ndash Ex Situ Thermal Desorption (ESTD) can be used to remove organic compounds including PCBs from soils and sediments Soilssediments are heated to volatilize organic

US EPA Region 3 Sauer Dump Site EECA 3-9 HydroGeoLogic Inc April 2009

AR103685

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

contaminants and a carrier gas or vacuum system transports volatilized water and organics to the gas treatment system Effectiveness ndash Thermal desorbers with temperatures in the range of 200oF to 600oF are able to achieve 95 percent contaminant destruction efficiency for treating VOCs and SVOCs while the decontaminated soils retain their physical properties Thermal desorbers with temperatures in the thermal range 600oF to 1000oF can produce final contaminant concentrations below 5 mgkg and are effective for treating PAHs PCBs pesticides SVOCs and VOCs ESTD would not address the metals contamination Implementability ndash This option can be implemented with specialized but commercially available equipment However there may be public opposition to the process because of the associated air emissions noise and the proximity to residential areas Implementation would require an open area to place the system and stage the treated and untreated soilssediments space for sediments dewatering and a significant supply of energy Cost ndash Moderate to High Literature sources list approximate costs for treating Site soils using ESTD in the range of $40 to $232 per cubic yard of soil (httpwwwfrtrgovmatrix2section44-26html 2008) In addition the costs associated with the remediation of the sediments would be higher due to dewatering of the sediments prior to ESTD Recommendation ndash ESTD was not retained as a possible pre-treatment option for excavated sediments and soils slated for off-site disposal due to the associated air emissions noise and the proximity to residential areas

3344 Ex Situ Thermal Destruction (Incineration)

Description ndash During the incineration process the soils are heated above the combustion temperature of most organic contaminants (1600oF to 2200oF) in the presence of oxygen Available incineration processes include rotary kiln fluidized-bed and infrared options Effectiveness ndash High temperatures employed during the incineration process result in the destruction of most organic compounds with treatment efficiencies commonly exceeding 9999 percent Generated off gases and combustion residuals generally require treatment Implementability ndash Mobile incinerator units are commercially available but there may be public opposition to the on-site use of an incinerator Off-site incineration is possible but transportation of the quantities of soils and sediments requiring remediation over the distances to the closest acceptable incinerator would increase the potential to spread Site contamination and would substantially increase cost Only three incinerators in the country can accept the Sitersquos heavily contaminated PCB soils because of the elevated metals concentrations These incinerators are 1) the Veolia facility in Port Arthur Texas 2) the Clean Harbor facility in Deer Park Texas and 3) the Clean Harbor facility in Aragonite Utah Other regulatory concerns associated with incineration include generation of toxic air pollutants and disposal of

US EPA Region 3 Sauer Dump Site EECA 3-10 HydroGeoLogic Inc April 2009

AR103686

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

ash residue An incineration facility must submit to a full-scale evaluation including a trial burn monitored by regulatory agencies to demonstrate its ability to meet performance criteria for various materials Cost ndash High Incineration is a very expensive process with costs ranging from approximately $585 to $1171 per cubic yard of soils (FRTR 2002) Recommendation ndash Because of this technologyrsquos ability to destroy the PCBs incineration was retained for further analysis

335 Groundwater CollectionTreatment

Groundwater collection and treatment methods can be used to control off-site migration of groundwater contaminants or to capture and treat groundwater containing residual contaminants from the capped or remediated areas The collectiontreatment methods retained by the initial screening are described below

3351 Interceptor Trench

Description ndash Interceptor trenches collect and allow extraction of groundwater before it migrates off-site The trench would consist of groundwater extraction sumps with submersible groundwater extraction pumps and piping to transfer extracted groundwater to an on-site treatment facility Effectiveness ndash To be effective the interceptor trench must be combined with a treatment andor disposal option Implementability ndash Installation and construction of the trench could be readily implemented with standard construction equipment and engineering controls A power supply would be required to operate the extraction system Long-term OampM would be required Cost ndash Moderate to High Costs can range from approximately $200 to $300 per linear foot of trench depending on Site conditions These costs include sumps and pumps Long-term OampM costs would also have to be included Recommendation ndash Groundwater collection through an interceptor trench was retained for further consideration

3352 Extraction Wells

Description ndash Collection of groundwater would be accomplished through one or more point extraction wells that would be used to induce a cone (or cones) of depression to capture contaminated water from the Site before it discharges into the river

US EPA Region 3 Sauer Dump Site EECA 3-11 HydroGeoLogic Inc April 2009

AR103687

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Effectiveness ndash To be effective the extraction well(s) must be combined with a treatment andor disposal option Because each well would generate a cone of depression it is likely that a substantial volume of river water would also be extracted for treatment The relatively low permeability soils of the Site would limit the effective radius of influence (ROI) of each well Implementability ndash Installation and construction of the well(s) could be readily implemented with standard construction equipment and engineering controls A power supply would be required to operate the extraction system Long-term OampM would be required Cost ndash Low to Moderate depending on geology well depth and required well casing material Long-term OampM costs would also have to be included Recommendation ndash Because of the limited ROI for each well and the high potential to extract river water in addition to contaminated groundwater collection of groundwater using extraction wells was not retained for further consideration

3353 Granular Activated Carbon Adsorption

Description ndash Granular Activated Carbon (GAC) is a highly porous and adsorbent material which is able to remove organic contaminants from water Collected groundwater would be filtered through the GAC to attain the PRGs before discharge of the treated groundwater Effectiveness ndash To be effective the treatment must be combined with a collection and discharge system PCBs can be removed through activated carbon adsorption Pre-filtration prior to activated carbon treatment can remove suspended particulates and multi-stage carbon adsorption can effectively remove heavy metals such as lead Implementability ndash Installation and construction of the GAC system could be readily implemented with standard construction equipment and engineering controls The activated carbon must be replaced periodically A power supply would likely be required to operate the treatment system and long-term OampM would be required Cost ndash Moderate to High PCB contamination limits treatment options Average cost for a GAC system of the size needed to achieve the PRGs required for this Site would be approximately $100000 Long-term OampM costs would also have to be included Recommendation ndash Groundwater treatment using GAC was retained for further consideration

3354 Monitored Natural Attenuation

Description ndash Natural attenuation are processes that may render the contaminants less toxic reduce concentrations reduce mobility andor alter bio-availability so that potential risks are reduced

US EPA Region 3 Sauer Dump Site EECA 3-12 HydroGeoLogic Inc April 2009

AR103688

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Effectiveness ndash Contaminant concentrations in Site groundwater are expected to be reduced through natural physical chemical and biological processes Until complete degradation is complete exposure risks from contaminated groundwater could exist Implementability ndash This process option could be readily implemented with standard construction equipment and engineering controls Long-term monitoring would be required Cost ndash Low The primary cost for this process option includes labor and equipment costs for installation of the monitoring wells if necessary and long-term sampling and analytical testing These costs are expected to be significantly lower than most other process option OampM costs Recommendation ndash Based on its low cost and eventual effectiveness this process option was retained for possible incorporation into the removal action alternatives

336 Removal and Disposal TPOs

Excavated soils and sediments can be disposed in an on-site or off-site landfill either directly or after they have undergone ex situ treatment Some of the excavated material would likely be classified as hazardous waste under RCRA This waste classification could result in additional disposal restrictions The presence of PCBs at concentrations greater than LDR limits would require that the soils be treated prior to disposal

3361 Excavation

Description ndash Soils and sediments characterized by contaminant concentrations greater than PRGs would be excavated Effectiveness ndash To be effective excavation must be combined with a treatment andor disposal option Implementability ndash Excavation could be readily implemented with standard construction equipment and engineering controls The excavated sediments would require decanting and possibly dewatering prior to treatment andor disposal The water removed from the sediments would require treatment prior to discharge or would require off-site disposal Cost ndash Low to High Excavation costs must be considered as a part of any alternative involving soilssediments removal Recommendation ndash Excavation was retained for further consideration

3362 Off-Site Landfill

Description ndash Excavated soils and sediments would be disposed in an off-site landfill with or without treatment Surface debris would be disposed off-site Some of the Site soilssediments

US EPA Region 3 Sauer Dump Site EECA 3-13 HydroGeoLogic Inc April 2009

AR103689

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 3-14 HydroGeoLogic Inc April 2009

may be characterized as hazardous wastes and would require disposal at a properly permitted hazardous waste facility Soils sediments and debris characterized as non-hazardous would be transported to a properly permitted non-hazardous waste landfill Effectiveness ndash Disposal of debris soils and sediments in an off-site landfill would effectively achieve the removal objectives Placement of the contaminated material in a properly engineered constructed and operated landfill would eliminate risks to human health and the environment and would prevent contaminant migration Implementability ndash A detailed waste characterization analysis would be required before an off-site treatmentdisposal facility would accept materials The data indicate that a substantial portion of the soils and sediments would be classified as hazardous waste Because of the comingled PCB and metals waste it might be difficult to identify a facility with the ability to accept the waste The Waste Management facility in Emelle Alabama was the closest identified facility that has the ability to accept hazardous (metals) waste provided that the PCB concentration is less than 500 mgkg Hazardous soils and sediments with a PCB concentration greater than 500 mgkg must be treated to remove the PCBs prior to acceptance by a hazardous waste landfill facility Based on the available data it is estimated that approximately 7540 cubic yards of soil would require treatment prior to off-site disposal The PCB concentrations of the contaminated sediments do not appear to meet this threshold value for treatment Transportation to an off-site disposal facility would require truck shipments Depending on the volume of soilssediments to be disposed off-site there could be substantial short-term impacts to the local traffic patterns In addition to creating inconvenience for local residents multiple truck shipments would increase the potential to spread contamination through off-site spills or accidents Cost ndash High Cost estimates for excavation and disposal of contaminated soils and sediments range from $210 - $350 per cubic yard (FRTR 2002) The costs for the Site are expected to be toward the high end of these estimates because of the highly contaminated nature of the waste and the distance to an appropriate landfill The cited costs do not include the pre-treatment required for soils with PCB concentrations greater than 500 mgkg Disposal of non-hazardous demolition debris and certain soils (those that pass the toxicity characteristic leaching procedure and have less than 50 mgkg of PCBs) would incur lower costs because these materials could be disposed of in municipal or industrial landfills located closer to the Site Recommendation - Because of the ability of this TPO to achieve the removal objectives it was retained for further evaluation

34 SUMMARY OF TREATMENT TECHNOLOGIES AND SELECTION OF REPRESENTATIVE PROCESS OPTIONS

The process options that were retained for further consideration will be used as components of the potential removal alternatives developed and evaluated in Section 4 Results of the TPO evaluation are summarized in Tables 33 and 34

AR103690

TABLES

AR103691

Table 31 Sauer Dum

p Site EE

CA

Sheet 1 of 3

H

ydroGeoL

ogic Inc April 2009

Identification and Preliminary Screening of Soil and Sediment Technologies for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

No Action None None Take no remedial action Contaminated soils and sediments would be subject to natural conditions and processes

Required for consideration by NCP Retained

Zoning Ordinances Restrict uses of the property andor limit Site access to minimize exposure and protect Site features

Zoning ordinances can be changed Not retained because does not provide a permanent means of land use control

Deed NoticesRestrictions

Restrict future use of Parcel 425 to non-residential purposes PRGs are based on non-residential use

Retained

Access Agreements Provide agreements to ensure access for monitoring of Site use inspection and operation and maintenance of removal system(s)

Retained

Public Awareness and Information Programs

Public meetings held to inform public of risks associated with the Site Installationmaintenance of warning signs

Retained

Monitoring of Site Conditions

Inspect Site to ensure non-residential land use Collect environmental samples

Retained

Institutional Controls

Institutional Actions

Security Fencing

Maintenance of existing perimeter fence Installation of a new security fence should implementation of the removal alternative require dismantling of the current fence or if additional areas need to be included within the fence

Retained

TSCA Compacted Soil Cover

Construct compacted clay cover over contaminated soils and sediments

Retained

Surface Cover - Multilayer

Install impermeable multilayered surface cover (such as RCRA Subtitle C cover)

Not Retained Containment Surface Cover

Surface Cover ndash Asphalt or Concrete

Install low permeability asphalt or concrete cover Not Retained

US E

PA

Region 3

AR103692

Table 31 (continued) Identification and Preliminary Screening of Soil and Sediment Technologies for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 2 of 2

HydroG

eoLogic Inc A

pril 2009

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

In Situ Soil Flushing

Contaminants are extracted from the soils with an aqueous medium the injected fluid is recovered for treatment and discharge

Not retained because of the subsurface soil composition the commingled contamination and the potential to discharge contamination into the Back River

Chemical Physical Treatment

Ex Situ Soil Washing Excavated soils are suspended in washing solution to concentrate and extract contaminants

Not retained because of the complexity of the technology and space requirements

Ex Situ Thermal Desorption

Excavated soils or sediments (after dewatering) are run through a thermal desorber for removaldestruction of organic compounds

Not retained due to associated air emissions noise and the proximity to residential areas

Treatment

Thermal Treatment Ex Situ Thermal

Destruction (Incineration)

Excavated soils or sediments (after dewatering) are combusted at high temperatures in the presence of oxygen to thermally destroy organic contaminants

Retained due the technologyrsquos ability to destroy PCBs

Removal Excavation Excavation Soils andor sediments are excavated for further treatment or disposal

Retained

Disposal Landfill Off-Site Landfill Excavated soils and sediments are transported to an off-site landfill for proper disposal

Retained

AR103693

Table 32 Sauer Dum

p Site EE

CA

Sheet 1 of 2

H

ydroGeoL

ogic Inc April 2009

Identification and Preliminary Screening of Groundwater Technologies for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

No Action None None Take no remedial action Contaminated groundwater would be subject to natural conditions and processes

Required for consideration by NCP Retained

Zoning Ordinances Restrict uses of the property andor limit Site access to minimize exposure and protect Site features

Zoning ordinances can be changed Not retained because does not provide a permanent means groundwater control

Deed NoticesRestrictions

Restrict future groundwater use

Retained

Access Agreements Provide agreements to ensure access for monitoring of Site use inspection and operation and maintenance of removal system(s)

Retained

Public Awareness and Information Programs

Public meetings held to inform public of risks associated with the Site Installationmaintenance of warning signs

Retained

Monitoring of Site Conditions

Inspect Site to ensure non-residential land use Collect environmental samples

Retained

Institutional Controls

Institutional Actions

Security Fencing

Maintenance of existing perimeter fence Installation of a new security fence should implementation of the removal alternative require dismantling of the current fence or if additional areas need to be included within the fence

Retained

Hydraulic Control

Extraction Hydraulic gradient is controlled by pumping groundwater from a strategically placed well network

Not effective because of low permeability soils and potential to extract large volumes of river water Not retained

Containment

Capping Surface Cap

Install a horizontal barrier to prevent infiltration of precipitation and subsequent mobilization of contaminants to groundwater

Retained

Collection Treatment

Extraction Interceptor Trench Construction of a trench to collect groundwater before it enters the wetlands

Retained

US E

PA

Region 3

AR103694

Table 32 (continued) Identification and Preliminary Screening of Groundwater Technologies for Sauer Dump Site

HG

LmdashE

EC

A Form

er Sauer Dum

p and Salvage YardmdashD

undalk Baltim

ore County M

D

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 2 of 2

H

ydroGeoL

ogic Inc April 2009

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

Chemical Physical Treatment

Granulated Activated Carbon

Collected groundwater would be filtered through granular activated carbon before discharge to remove organic contaminants

Retained

Monitored Natural Attenuation

Natural Attenuation Natural attenuation of organic contaminants is achieved via native subsurface microorganisms and naturally occurring physical processes in the subsurface

Retained

AR103695

Table 33 Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 1 of 6

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

No Action None

Take no remedial action Contaminated soils and sediments will be subject to natural conditions and processes

Rank = 5 Does not address risks from Site soils or sediments

Rank = 1 No cost No OampM

Retained as baseline comparison

Deed Notices Restrictions

Restrict use of Parcel 425 to non-residential purposes

Rank = 4 Reduces but does not eliminate human health risks from the Site Does not address ecological risks Does not prevent further contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Required for all alternatives because PRGs based on non-residential use

Access Agreements

Provide agreements to ensure access for monitoring of Site conditions and operationmaintenance of removal system(s)

Rank = 4 Does not address human health or ecological risks Does not affect contaminant migration Allows for effective implementation of other technologies

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

Monitoring of Site Conditions

Monitor Site to confirm implementation of land use controls Monitor operation of any removal system(s)

Rank = 4 Provides information of the implementationoperation of the removal alternative

Rank = 1 Can be easily implemented

Very Low to Low Cost

Retained for development of alternatives

Institutional Controls

Security Fencing

Maintain existing Site fence Re-install Site fence if current one torn down during removal action implementation or if additional areas need to be included within the fence

Rank = 4 Decreases exposure potential for humans Does not address ecological risks or contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Minimal OampM required

Retained for development of alternatives

US E

PA

Region 3

AR103696

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 2 of 6

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Public Awareness Programs

Conduct Public Meeting and issue fact sheets to educate citizens about risks of Site contamination Post warning signs at Site to alert people of associated risks

Rank = 4 Decreases exposure potential for humans Does not address ecological risks or contaminant migration

Rank = 1 Can be easily implemented

Very Low cost

Retained for development of alternatives

Surface Cover ndash Multilayer (RCRA Subtitle C cap)

Install impermeable multi-layered surface cover over contaminated areas on Site

Rank = 2 Limits exposure and transport of contaminants Does not treat or remove contamination Limits allowable future uses of the Site Resealing of cap difficult if breached Exceeds requirements of 40 CFR sect 76161

Rank = 2 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Not retained due to more difficult implementability and higher cost than TSCA cap

Containment

Compacted Soil Cover (TSCA cap)

Install impermeable compacted soil cover over contaminated areas on Site

Rank = 2 Limits exposure and transport of contaminants Does not treat or remove contamination Limits allowable future uses of the Site Resealing of cap relatively simple if cap is breached Meets requirements of 40 CFR sect 76161

Rank = 1 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Retained for development of alternatives

US E

PA

Region 3

AR103697

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 3 of 6

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Containment Surface Cover ndash Asphalt or Concrete

Install asphalt or concrete cap over contaminated areas on-site

Rank = 2 As effective as multilayered cap in controlling exposure and spread of contamination Decreased OampM requirements as compared to multi-layer cap Does not allow for Site re-vegetation Visually unappealing Resealing of cap relatively simple if cap is breached Meets the requirements of 40 CFR sect 76161

Rank = 2 Equipmentskilled workers would be readily available Asphaltconcrete cover would reduce available habitat Maintenance in perpetuity

Low to moderate cost with lower OampM than multi-layer cap

Not retained due to significant impacts to wildlife

Treatment In Situ Soil Flushing

Contaminants are extracted from the soils with an aqueous medium the injected fluid is recovered for treatment and discharge

Rank = 4 Could increase groundwater contaminant levels and the discharge of groundwater contaminants to the adjacent surface water Limited effectiveness in fine-textured soils Not known if technology can attain the PRGs for all of the soil contaminants

Rank = 4 Complicated washing solution regimen needed to treat all contaminants Requires bench-scale and pilot-scale testing to identify optimum wash solutions and injectioncapture systems Requires treatment and disposaldischarge of wash fluid

High cost

Not retained because of soil composition commingled contamination and contaminant migration potential

US E

PA

Region 3

AR103698

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

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ounty MD

General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Ex Situ Soil Washing

Excavated soils are suspended in washing solution to concentrate and extract contaminants Could be applied to excavated sediments

Rank = 3 Eliminates contaminant migration concerns associated with in-situ soil flushing Not known if technology can attain the PRGs for all of the soilsediment contaminants

Rank = 4 Would require bench-scale and pilot-scale testing Wash solution would require treatment and disposal or discharge May not be enough room on- site to hold required system infrastructure and allow for excavation

High cost Not retained due to uncertainty over effectiveness and the difficulty of implementation

Treatment

Ex Situ Thermal Desorption

Excavated soils and sediments (after dewatering) are run through a thermal desorber for removaldestruction of organic compounds

Rank = 3 Excellent organic contaminant removal No inorganic treatment Higher temperatures are required to desorb PCBs

Rank = 4 Specialized equipment Potential for public opposition to air emissions Extensive space requirements for the sediment dewatering staging of untreated and treated soilssediments and desorption unit Requires a significant energy source

Moderate to high cost Pilot study required

Not retained due to associated air emissions noise and the proximity to residential areas

US E

PA

Region 3

AR103699

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

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General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Treatment Ex Situ Thermal Destruction (Incineration)

Excavated soils are combusted at high temperatures in the presence of oxygen to thermally destroy organic contaminants

Rank = 3 Effective for organic contaminants Not effective for metals

Rank = 5 Mobile units are available but could be subject to a high degree of public opposition Mobile unit would require extensive start-up testing (trial burns) to demonstrate compliance of off-gas treatment system with substantive requirements of air quality regulations Limited availability of off-site incinerators

Very high cost

Retained for use as pre-treatment method for off-site disposal due to technologyrsquos ability to destroy PCBs

Removal Disposal Excavation

Soils and sediments are excavated for further treatment or disposal

Rank = 1 Could achieve all removal objectives if contaminated soils and sediments are removed for treatment or proper off-site disposal

Rank = 2 Can be implemented with readily available construction techniques and equipment Would require space for staging of excavated material and sediments dewatering

Low to high cost No operation and maintenance

Retained for development of alternatives

US E

PA

Region 3

AR103700

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

HG

LmdashSauer D

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ost Analysismdash

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altimore C

ounty MD

US E

PA

Region 3

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General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

Off-Site Landfill

Excavated soils and sediments are transported to an off-site landfill

Rank = 1 Would achieve all removal objectives

Rank = 4 Soilssediments characterized as hazardous waste would require truck transport to a hazardous waste facility The most contaminated soils would require pre-treatment prior to acceptance by a hazardous waste facility There may be public opposition to significant levels of off-site truck traffic

Moderate to high cost No operation and maintenance

Retained for development of removal alternatives

NOTES (1)TPOs are ranked qualitatively for effectiveness and implementability with 1 representing the most effectiveeasiest to implement and 5 representing the ineffectiveimpossible to implement

AR103701

Table 34 Evaluation and Screening of Groundwater Technology Process Options (TPOs) for Sauer Dump Site

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ounty MD

General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

No Action None

Take no remedial action Contaminated groundwater will be subject to natural conditions and processes

Rank = 5 Does not address risks from Site soils or sediments

Rank = 1 No cost No OampM

Retained as baseline comparison

Deed Notices Restrictions

Restrict future groundwater use

Rank = 4 Reduces but does not eliminate human health or ecological risks Does not prevent further contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

Access Agreements

Provide agreements to ensure access for monitoring of Site conditions and operationmaintenance of removal system(s)

Rank = 4 Does not address human health or ecological risks Does not affect contaminant migration Allows for effective implementation of other technologies

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

Monitoring of Site Conditions

Monitor operation of any removal system(s)

Rank = 4 Provides information of the implementationoperation of the removal alternative

Rank = 1 Can be easily implemented

Very Low to Low Cost

Retained for development of alternatives

Institutional Controls

Public Awareness Programs

Conduct Public Meeting and issue fact sheets to educate citizens about risks of Site contamination Post warning signs at Site to alert people of associated risks

Rank = 4 Decreases exposure potential for humans Does not address ecological risks or contaminant migration

Rank = 1 Can be easily implemented

Very Low cost

Retained for development of alternatives

US E

PA

Region 3

AR103702

Table 34 (continued) Evaluation and Screening of Groundwater Technology Process Options (TPOs) for Sauer Dump Site

HG

LmdashSauer D

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ost Analysismdash

Dundalk B

altimore C

ounty MD

US E

PA

Region 3

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General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

Containment Compacted Soil Cover

Install impermeable compacted soil cover over contaminated areas on site

Rank = 3 Limits exposure and transport of contaminants Does not treat or remove contamination Allows groundwater contact with residual contaminants

Rank = 1 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Retained for development of alternatives

Interceptor Trench

Groundwater is collected in an interceptor trench before it enters the wetland areas

Rank = 2 Limits transport of contaminants Does not treat or remove contamination Limits allowable future uses of the Site

Rank = 2 Can be readily implemented Maintenance in perpetuity

Moderate to High Cost Moderate OampM required

Retained for development of alternatives

Extraction Wells

Groundwater is extracted with individual extraction wells

Rank = 4 Site soil type would limit effective radii of influence of wells Wells would also draw in river water into treatment system

Rank = 2 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Not retained because of ROI issues and potential for river water withdrawal

GAC

Groundwater is treated with GAC

Rank = 4 Not known if technology can attain the PRGs for groundwater contaminants

Rank = 2 Would require an on-site treatment system

Moderate to High Cost Moderate OampM required

Retained for development of alternatives

Collection Treatment

Monitored Natural Attenuation

Natural Attenuation Rank = 4 Reduces but does not eliminate human health or ecological risks Does not prevent further contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

NOTES (1)TPOs are ranked qualitatively for effectiveness and implementability with 1 representing the most effectiveeasiest to implement and 5 representing the ineffectiveimpossible to implement

AR103703

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AR103704

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

40 DEVELOPMENT AND DETAILED ANALYSIS OF REMOVAL ALTERNATIVES

The retained TPOs have been assembled into removal alternatives that could potentially meet the removal objectives for the Site In some cases several technologies were combined to provide an efficient and protective approach The removal alternatives include a ldquono actionrdquo alternative as well as combinations of the TPOs retained in Section 33 The proposed alternatives are defined in Section 41 and summarized in Table 41 Section 42 describes the evaluation criteria used to assess the different removal alternatives A detailed evaluation of each alternative is provided in Section 43 and a comparative analysis is provided in Section 44

41 DEVELOPMENT OF ALTERNATIVES

411 Alternative 1 No Action

The no action alternative serves as a basis against which the effectiveness of all the other proposed removal alternatives can be compared Under this alternative the Site would remain in its present condition and the soil and sediment contamination would be subject to natural processes only No monitoring would take place to keep track of any changes

412 Alternative 2 Surface Cap Excavation and Off-Site Disposal

Alternative 2 consists of the following components

bull Removal and off-site disposal of surface debris bull Clearing and grubbing of Parcel 425 and removal and disposal of materials bull Confirmation sampling would proceed concurrently with all excavation to ensure that

removal requirements are met bull Excavation of contaminated soils from Parcels 425 and 574 All contaminated soils

with PCBs greater than 100 ppm regardless of depth and lead greater than 1000 ppm in the upper 2 feet would be excavated for proper off-site disposal

bull Excavation of the contaminated sediments from the affected wetlands All sediments with PCBs greater than 1 part per million (ppm) and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 ppm below that depth would be excavated

bull Verification sampling of sediments along the Back River shoreline to determine the extent of sediments requiring excavation Based on the results sediments with PCBs greater than 1 ppm and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 ppm below that depth would be excavated

bull Excavation of all contaminated soils with PCBs greater than 1 ppm and lead greater than 400 ppm from the residential properties (Parcels 137 295 464 503 and portions of 574) adjacent to Parcel 425

bull Excavated soils and sediments would be temporarily stockpiled in a staging area established on Parcel 425 Confirmation sampling from the stockpile would be

US EPA Region 3 Sauer Dump Site EECA 4-1 HydroGeoLogic Inc April 2009

AR103705

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 4-2 HydroGeoLogic Inc April 2009

performed to verify that PCB concentrations are less than 100 ppm and lead concentrations are less than 1000 ppm Soils and sediments meeting these criteria would be placed across the upland portions of Parcel 425 Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull After completion of excavation and confirmation sampling all excavated areas with the exception of Parcel 425 would be restored by backfilling and re-vegetation

bull Parcel 425 would be re-graded and compacted after placement of the excavated soils and sediments and backfilled as required to maintain proper grade and drainage in preparation for construction of a TSCA soil cover

bull Construction of a TSCA compacted soil cover over the contaminated soils and sediments which exceed 1 ppm PCBs on Parcel 4253

bull Installation of replacement monitoring wells if necessary and a monitoring program to monitor the effectiveness of the remediation effort and groundwater quality Groundwater monitoring would be conducted on a semi-annual basis for a four-year period beginning after construction activities are complete Constituents to be monitored include lead and PCBs and

bull Implementation of ICs to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area of Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

Prior to the sediment and soil excavation any surface debris on Parcel 425 that could not be placed beneath the cap would be removed and disposed off-site The vegetation within the limits of disturbance for the excavation areas and cover foot print would be cleared grubbed and disposed off-site For costing purposes in the EECA it was assumed that a portion of the surface debris and grubbed material would be hazardous Any monitoring wells located inside the footprint of the cover would be abandoned The contaminated sediments in the affected wetlands would be excavated and placed in lined berms to allow the water to drain After the sediments are decanted they would be dewatered The water removed from the sediments through decanting and dewatering would be treated on-site prior to discharge to the Back River After completion of confirmation sampling and placement of the cover the wetland areas would be restored to their original grade and re-vegetated with native species Submerged sediment samples have been collected 14 times from within the Back River at locations adjacent to the Sauer Dump Site In only one instance (in 1999) were the PCB concentrations in one of these samples (21 ppm) greater than the PRG of 1 ppm Its location is shown on Figure 15 Given the time span since this sample was collected (over nine years)

3 For costing purposes the TSCA cap in Alternatives 2 and 3 was assumed to cover the entire extent of Parcel 425 This was done to account for the excavated soils and sediments (approximately 12600 cubic yards total) being brought back onto this parcel from the wetlands and other contaminate areas and to improve constructability of the cap by having a single continuous cap rather than multiple smaller caps

AR103706

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 4-3 HydroGeoLogic Inc April 2009

the mobile nature of river sediments (especially in a tidal location) and natural attenuation the area is currently assumed to meet the PRGs A total of 20 samples would be collected on a 10 foot grid to determine the extent if any of the area to be excavated Areas with PCBs andor lead concentrations exceeding the Site PRGs would be excavated and handled in the same manner as wetlands sediments Contaminated soils on Parcels 425 and 574 with PCB concentrations greater than 100 ppm and lead concentrations greater than 1000 mgkg would be excavated and properly disposed at an appropriately permitted landfill The lateral extent of the excavation was estimated from soil analytical data and is shown on Figure 41 Confirmation sampling would proceed concurrently with excavation to ensure that removal requirements are met Contaminated soils on the adjacent Parcels 503 464 295 137 and 574 would be excavated Confirmation sampling would proceed concurrently with excavation to ensure that removal requirements are met Prior to excavation access agreements would need to be obtained from the affected property owners The lateral extent of soil contamination in these areas was estimated from surface soil data and is shown on Figure 41 The actual area requiring excavation might be smaller or larger than shown After the completion of the excavation and confirmation sampling the excavated areas on Parcels 503 464 295 137 and 574 would be backfilled to the original grade with clean fill and re-vegetated Excavated soils and sediments with PCB concentrations greater than 100 ppm and less than 500 ppm would be properly disposed at an appropriately permitted RCRA or TSCA landfill The Waste Management facility in Emelle Alabama was the closest identified facility that has the ability to accept hazardous (metals) waste provided that the PCB concentrations in the waste are less than 500 mgkg Soils with PCB concentrations greater than 500 ppm would require incineration and disposal at one of the facilities mentioned in Section 3344 To ensure selection of the proper off-site disposal facility extensive waste characterization sampling would be required For costing purposes it was assumed that all soils and sediments classified as hazardous waste would be transported to the Waste Management facility in Emelle Alabama with the exception of approximately 7542 cubic feet of soilssediments which would require incineration Estimated volumes for Alternative 2 are contained in Appendix B-1 The excavated sediments and the soils that do not require off-site disposal would be placed across the upland portions of Parcel 425 In order to prevent direct contact protect from erosion and prevent migration of hazardous substances Site topography would be contoured and a TSCA compacted soil cover would be continuously installed over the area of Parcel 425 with concentrations of PCBs over 1 ppm4 A network of monitoring wells would be installed to assess the effectiveness of the removal action with respect to decreasing contaminant

4 For costing purposes the TSCA cap in Alternatives 2 and 3 was assumed to cover the entire extent of Parcel 425 This was done to account for the excavated soils and sediments (approximately 12600 cubic yards total) being brought back onto this parcel from the wetlands and other contaminate areas and to improve constructability of the cap by having a single continuous cap rather than multiple smaller caps

AR103707

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

migration via the soil-to-groundwater pathway For costing purposes it was assumed that the monitoring well network would consist of seven wells After installation of the cover deed noticesrestrictions would be applied to Parcel 425 to maintain the future land use as non-residential and to prevent activities which could damage the compacted soil cover A security fence would be installed around the cover and warning signs posted along the fence Access agreements would be obtained from the current property owners to allow for land use monitoring and cover maintenance This alternative requires long-term maintenance of the cover and monitoring of the Site conditions Cover maintenance includes periodic inspections and the repair of any damage to the cover Long-term monitoring would include land use monitoring groundwater monitoring and surface water monitoring The purpose of the groundwater and surface water monitoring would be to assess the effectiveness of the action with respect to contaminant migration

413 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment

This alternative includes the same elements as Alternative 2 with the following exceptions

bull All contaminated soils (regardless of depth) with PCBs greater than 10 ppm andor lead greater than 400 ppm from Parcels 425 and 574 would be excavated for proper off-site disposal

bull All of the contaminated sediments with PCBs greater than 1 ppm andor lead greater than 130 ppm from the affected wetlands and along the Back River shoreline would be excavated regardless of depth

bull Excavated soils and sediments with PCB concentrations less than 10 ppm and lead concentrations less than 400 ppm would be placed across the upland portions of Parcel 425 for capping Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull Installation of a groundwater collection system to control off-site migration of groundwater from the former dump area

bull Installation of a groundwater treatment system to remove lead and PCBs from the captured groundwater and discharge the water to the Back River

bull Implementation of long-term operation maintenance and monitoring for the groundwater collection and treatment system and

bull Implementation of Institutional Controls to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area of the Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

The lateral extent of the excavation required under this alternative was estimated from soil analytical data and is shown on Figure 43

US EPA Region 3 Sauer Dump Site EECA 4-4 HydroGeoLogic Inc April 2009

AR103708

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

The available data indicate that much of the soils to be excavated could meet the definition of a non-hazardous waste These soils could be disposed at a local non-hazardous waste landfill As in Alternative 2 soils with PCB concentrations greater than 500 ppm would require incineration and proper disposal at one of the three facilities mentioned in Section 3344 To ensure selection of the proper off-site disposal facility extensive waste characterization sampling would be required For costing purposes it was assumed that all soils and sediments classified as hazardous waste would be transported to the Waste Management facility in Emelle Alabama with the exception of approximately 7542 cubic feet of soilssediments which would require incineration Estimated volumes for Alternative 3 are contained in Appendix B-2 The groundwater collection and treatment system would consist of the following major components

bull Three (3) groundwater interceptor trench segments located along the south east and west portions of Parcel 425 (Figure 44) Each trench would contain groundwater extraction sumps with submersible groundwater extraction pumps and piping to transfer extracted groundwater to an on-site treatment facility Two groundwater extraction sumps and pumps would be sufficient to provide hydraulic control

bull A groundwater treatment building constructed on the southern portion of Parcel 425 The treatment building would house a groundwater treatment process consisting of temporary storage of extracted groundwater (surge tank) a pre-filtration system consisting of two basket strainers connected in series two granular activated carbon adsorbers connected in series and all associated process piping controls and transfer pumps

bull A treated groundwater discharge line to transfer treated water to an outfall at the southern boundary of Parcel 425 discharging to the Back River in compliance with the substantive requirements of a NPDES permit

Groundwater flows from north to south across the Site discharging into the Back River The south interceptor trench would be located and installed at the location shown on Figure 44 to hydraulically control groundwater flow into the river Groundwater would be extracted from the interceptor trench at a rate suitable to maintain a slight (05 feet) hydraulic gradient toward the trench and away from the river The interceptor trench segments along the sides of Parcel 425 would be installed to hydraulically control groundwater flow that could otherwise migrate off-site toward residential areas (Parcels 503 and 464) and the wetlands areas to the west and southeast Groundwater would be extracted from the interceptor trench at a rate suitable to maintain a slight (05 feet) hydraulic gradient toward the trench and away from off-site areas The interceptor trenches would extend to approximately three (3) feet below mean sea level to allow for an adequate collection sump depth The trenches would be filled with clean gravel to

US EPA Region 3 Sauer Dump Site EECA 4-5 HydroGeoLogic Inc April 2009

AR103709

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

a depth approximately three (3) feet above mean sea level A filter fabric would be installed above the gravel zone to minimize silting and the remaining trench depth would be backfilled with native soils Three (3) perforated vertical collection sumps would be installed along the length of each trench and submersible groundwater extraction pumps with level control floats would be installed within each sump Based on permeability and other data provided in the RI and Extent of Contamination Study reports a design flow rate of four (4) gallons per minute would be used Extracted groundwater would be transferred to the treatment building and into two (2) 2500 gallon holding tanks A transfer pump would transfer the groundwater from the holding tank through the two (2) basket strainers through the two (2) GAC absorbers through a recording totalizing flow meter and out to the treated water outfall Spent basket filter bags and GAC would be contained and disposed of or regenerated off-site on an as needed basis For the purposes of the cost estimate it is assumed that the system would be checked by a part-time operator weekly The system would be inspected and repaired as necessary by the operator Quarterly NPDES sampling and analysis and annual reporting would also be performed Quarterly inspections by a process engineer are also included in the cost estimate Detailed cost calculations are presented in Appendix B-2 Alternative 3 requires long-term maintenance of the cover groundwater treatment system and monitoring of the Site conditions Cover maintenance includes periodic inspections and the repair of any damage to the cover Long-term maintenance of the groundwater treatment system would include regularly scheduled monitoring maintenance replacement and disposal of spent basket filters bags and periodic replacement of the GAC Long-term monitoring would include both groundwater and surface water monitoring

414 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment

This alternative consists of the elements of Alternative 2 with the following additional components

bull Excavation of contaminated soils with PCBs greater than 1 ppm andor lead greater than 400 ppm regardless of depth from all parcels for proper off-site disposal

bull Excavation of the contaminated sediments from the affected wetlands regardless of depth All sediments with PCBs greater than 1 ppm andor lead greater than 130 ppm would be excavated for proper off-site disposal

bull Proper off-site landfilling of excavated soils with greater than 1 ppm and less than 500 ppm of PCBs

bull After completion of excavation and confirmation sampling all excavated areas would be restored

bull Installation of a groundwater collection and treatment system and associated long-term monitoring and maintenance as described for Alternative 3 and

bull Recordation of deed notices to ensure that groundwater use is restricted if necessary

US EPA Region 3 Sauer Dump Site EECA 4-6 HydroGeoLogic Inc April 2009

AR103710

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

The estimated lateral extent of the excavation required under this alternative was estimated from soil analytical data and is shown on Figure 45 Excavated soils with PCB concentrations greater than 50 ppm and less than 500 ppm would be excavated and disposed at a RCRA or TSCA-licensed landfill The Waste Management facility in Emelle Alabama was the closest identified facility that has the ability to accept hazardous (metals) waste provided that the PCB concentrations in the waste are less than 500 ppm Soils with PCB concentrations greater than 500 ppm would require incineration and disposal at one of the three facilities mentioned in Section 3344 Excavated soils and sediments that meet the definition of a non-hazardous waste would be disposed at a local non-hazardous waste landfill To ensure selection of the proper off-site disposal facility extensive waste characterization sampling would be required For costing purposes it was assumed that all soils and sediments classified as hazardous waste would be transported to the Waste Management facility in Emelle Alabama with the exception of approximately 7542 cubic feet of soilssediments which would require incineration Estimated volumes for Alternative 4 are contained in Appendix B-3 Under Alternative 4 no compacted soil cover is required because the remaining soils would meet the PRGs as well as the PCB cleanup standards for a ldquoHigh Occupancy Areardquo under TSCA Soil removal to residential based PRGs would also eliminate the need for future land use controls and long-term monitoring The groundwater collection and treatment systems would be the same as for Alternative 3

42 EVALUATION CRITERIA

According to the guidance document Conducting Non-Time-Critical Removal Actions Under CERCLA (EPA 1993) removal alternatives should be evaluated based on effectiveness implementability and cost Effectiveness can be evaluated in terms of protectiveness and ability to achieve removal objectives The protectiveness evaluation should consider public health and the environment impacts on the community impacts to workers involved with removal action implementation and compliance with ARARs Implementability addresses the technical and administrative feasibility of implementing an alternative including the availability of services and materials required for its implementation the ease of construction and operation monitoring considerations the historical reliability of selected technologies and the ease with which the alternative can be integrated with other actions that might be necessary at the Site The total cost for the removal action includes capital and OampM costs both direct and indirect Capital costs consist of the direct costs for items such as labor materials equipment and services plus the indirect costs for remedial design management and contingencies A 15 contingency was utilized in all capital cost estimates for all alternatives OampM costs are the

US EPA Region 3 Sauer Dump Site EECA 4-7 HydroGeoLogic Inc April 2009

AR103711

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

annual post-construction costs necessary to maintain the treatment or containment system OampM costs include such items as operating labor maintenance auxiliary materials and energy A present worth analysis is used to evaluate expenditures that occur over different time periods by discounting all future costs to a common base year In accordance with EPA guidance present worth estimates are calculated using a 7 discount rate over 30 years (EPA 2000) with 2009 as a base year The cost estimates in this report are order-of-magnitude level estimates based on a variety of information including quotes from suppliers generic unit costs vendor information conventional cost estimating guides and professional judgment

43 DETAILED ANALYSIS OF ALTERNATIVES

In this section all the alternatives retained for detailed analysis are evaluated based on the evaluation criteria described in Section 42

431 Alternative 1 No Action

4311 Effectiveness

Because no action would be performed this alternative would not protect human health or the environment Current and future risks from soil and sediment contamination at the Site would not be significantly different from those identified in the baseline risk assessment ARARs would not be met Because no action would be taken this alternative does not pose any risks associated with implementation

4312 Implementability

Because no action would be taken this alternative would be implemented easily

4313 Cost

There are no costs associated with Alternative 1

432 Alternative 2 Surface Cap Excavation and Off-Site Disposal

4321 Effectiveness

This alternative would effectively prevent human and ecological receptors from contacting the contaminated soils and sediments as long as the TSCA cover portion of the remedy is maintained In addition an intact cover would effectively prevent soil and sediment contaminant migration via erosion and overland flow Due to its ability to substantially reduce precipitation infiltration the TSCA soil cover would decrease the potential for soil contaminants to leach to the underlying groundwater However this Site is adjacent to surface

US EPA Region 3 Sauer Dump Site EECA 4-8 HydroGeoLogic Inc April 2009

AR103712

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

water or wetlands on three of four sides has subsurface soil contamination present at depths that are close to the water table and has groundwater that is tidally influenced It might be possible for tidal influences andor severe storms to cause the groundwater surface beneath the cover to increase to such an extent that the groundwater would be in contact with the contaminated soils In this situation contaminant migration via the soil-to-groundwater pathway could occur While Alternative 2 does not initially provide for groundwater treatment if the monitoring program implemented as part of this alternative indicates that unacceptable levels of Site contaminants are impacting the groundwater andor the Back River a groundwater capture and treatment system could be put in place to address the problem Continued maintenance of the cover is required to ensure long-term protection of human health and the environment If the cover were damaged or breached then people or animals could come in contact with the contaminated soilssediments and contaminant migration could occur The Site is next to a tidally-influenced area and is located within the floodplain Storm events and flooding could increase the potential for the cover to be damaged and breached and would increase long-term maintenance requirements Long-term monitoring is required to ensure that future land use remains consistent with the PRGs This alternative would comply with ARARs provided the entire Site is classified as a single Area of Concern (AOC) to meet the land disposal restriction (LDR) criteria in the TSCA and RCRA According to the Superfund LDR Guide 5 (EPA 1989) ldquoplacement does not occur when wastes are left in place or moved within a single Area of Contaminationrdquo The zones of contamination at the Site are contiguous found in adjacent parcels and consistent with the AOC concept The Site cleanup will also meet the risk-based criteria of the TSCA regulations at 40 CFR sect 76161(c) There is potential for short-term impacts during excavation and construction but these impacts can be mitigated through the use of standard engineering controls Short-term impacts to the adjacent wetlands would be addressed by restoring the wetlands to the original grade and re-vegetating Truck shipments required for off-site disposal of the soils could increase the potential for traffic accidents and could disturb the traffic patterns in the local community However these impacts would be short term and maintaining open communication with residents of the community could mitigate these concerns Alternative 2 would decrease soil and sediment contaminant mobility toxicity and volume It would decrease contaminant mobility toxicity and volume in groundwater but would not completely prevent off-site groundwater migration

4322 Implementability

This alternative could be implemented with standard construction equipment and readily available materials and labor No major technical difficulties are anticipated in implementing this alternative However there are only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 ppm These facilities are in Texas

US EPA Region 3 Sauer Dump Site EECA 4-9 HydroGeoLogic Inc April 2009

AR103713

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

and Utah necessitating the use of long distance truck andor rail transportation This off-site transport has the potential to result in off-site contamination through spills or accidents Access agreements and schedule coordination with the owners of Parcels 503 464 295 137 and 574 would be required Construction of a compacted soil cover would limit future uses of Parcel 425 Long-term administrative resources would be required to ensure compliance with the ICs and maintenance of the cover

4323 Cost

This section presents the present worth analysis for the compacted soil cover Uncertainties that could impact the total cost of this alternative include the extent of surficial debris which would require removal and off-site disposal and the volume of sediments and soils to be excavated and disposed off-site

Cost The cost calculations for Alternative 2 are presented in Appendix B-1

The capital cost for Alternative 2 is estimated to be $ 531 Million

The present worth OampM cost is approximately $ 729000

The total project cost (present worth) is estimated to be $ 604 Million

433 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment

4331 Effectiveness

Alternative 3 would be more effective at reducing risks related to Site contamination than Alternative 2 because soils with PCB concentrations greater than 10 ppm (instead of 100 ppm) or lead concentrations greater than 400 ppm (instead of 1000 ppm) would be removed from the Site Additionally Alternative 3 would provide controls to prevent off-site migration of groundwater from beneath the compacted soil cap because it would provide for collection and treatment of groundwater The excavation and off-site disposal of additional contaminated soils and sediments and the construction of a groundwater collection and treatment system would increase short-term impacts including increased excavation and construction activities as well as increased truck traffic Alternative 3 would comply with ARARs if the Site is considered to be a single AOC with respect to LDR compliance as in Alternative 2 However because no soils with PCB concentrations greater than 10 ppm would be left on Site (under the TSCA cover) this alternative would meet the cleanup requirements for a High Occupancy Area under 40 CFR sect 76161 if the self-implementing cleanup provisions were applicable to CERCLA cleanups The groundwater collection and treatment system would have the added benefit of preventing the potential migration of contaminated groundwater to the wetland areas

US EPA Region 3 Sauer Dump Site EECA 4-10 HydroGeoLogic Inc April 2009

AR103714

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

and surface waters Alternative 3 would decrease contaminant mobility toxicity and volume in soils sediments and groundwater

4332 Implementability

Alternative 3 would be somewhat more difficult to implement than Alternative 2 because of the additional volume of soils and sediments to be excavated for off-site disposal and the construction of a groundwater collection treatment and discharge system The additional volume of soils and sediments excavated for off-site disposal would lead to an increase in truck traffic with the resultant impacts to the community and increased risk of accidents and spills While a NPDES permit would not be required to discharge the treated groundwater to the Back River compliance with the substantive provisions of 40 CFR Part 122 would be necessary For groundwater the treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively It would be difficult or impossible to achieve the required PCB levels Additional long-term administrative resources would be required to ensure maintenance and monitoring of the groundwater collection and treatment systems This would include weekly treatment system checks quarterly NPDES sampling analysis and annual reporting quarterly inspections by a process engineer replacement and disposal of spent basket filters bags and periodic regeneration and replacement of GAC Spent basket filter bags would be contained and disposed of as needed

4333 Cost

This section presents the present worth analysis for construction of a surface cap excavation off-site disposal of the soils and sediments and groundwater treatment Uncertainties that could impact the total cost of this alternative include the extent of surficial debris which would require removal and off-site disposal and the volume of sediments and soils to be excavated and disposed off-site The cost calculations for Alternative 3 are presented in Appendix B-2

The capital cost for Alternative 3 is estimated to be $ 777 Million

The present worth OampM cost is approximately $ 163 Million

The total project cost (present worth) is estimated to be $ 939 Million

434 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment

4341 Effectiveness

Because all soils and sediments with contamination concentrations above the PRGs would be removed from the Site Alternative 4 would provide the greatest long-term protection to human

US EPA Region 3 Sauer Dump Site EECA 4-11 HydroGeoLogic Inc April 2009

AR103715

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

health and the environment and more effective control of contaminant migration relative to the other alternatives As with Alternative 3 the groundwater collection and treatment system would prevent the potential migration of residual contaminated groundwater to the wetland areas and surface waters Alternative 4 shares the same short-term excavation construction and transportation impacts identified for Alternative 3 however truck traffic would be greatly increased This alternative would decrease contaminant mobility toxicity and volume in soils sediments and groundwater

4342 Implementability

Because all soils and sediments would be disposed off-site there would be a significant increase in truck traffic relative to the other alternatives Public opposition to the traffic impacts from the extensive off-site transportation requirements of this alternative could potentially make implementability more difficult than for Alternative 3 Off-site transport has the potential to result in off-site contamination through spills or accidents Although an NPDES permit would not be required to discharge the treated groundwater from the groundwater management system to the Back River compliance with the substantive provisions of 40 CFR Part 122 would be necessary The groundwater treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively It would be difficult or impossible to achieve the required PCB treatment levels Long-term administrative resources would be required to ensure maintenance and monitoring of the collection and treatment systems

4343 Cost

This section presents the present worth analysis for excavation off-site disposal of the soils and sediments and groundwater treatment Uncertainties that could impact the total cost of this alternative include the quantity of soils and sediments that would be required to be disposed off-site Cost The cost calculations for Alternative 4 are presented in Appendix B-3

The capital cost for Alternative 4 is estimated to be $ 1141 Million

The present worth OampM cost is approximately $ 132 Million

The total project cost (present worth) is estimated to be $ 1272 Million

44 COMPARATIVE ANALYSIS OF ALTERNATIVES

In this subsection the removal alternatives are compared to each other based on the three evaluation criteria

US EPA Region 3 Sauer Dump Site EECA 4-12 HydroGeoLogic Inc April 2009

AR103716

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

441 Effectiveness

Alternative 1 No Action would not provide long-term protection of human health or the environment nor would it decrease contaminant migration Alternative 2 (Surface Cap Excavation and Off-Site Disposal) Alternative 3 (Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment) and Alternative 4 (Excavation Off-Site Disposal and Groundwater Collection and Treatment) would reduce human health and ecological risks from soil and sediment contamination by eliminating or reducing the potential for contact with the contaminated soils and sediments and by reducing the volume of contamination in soils and sediments Alternatives 2 3 and 4 would decrease migration of soil and sediment contaminants to other media by requiring installation of a cap over the contaminants left on-site (Alternatives 2 and 3) or by removing the contamination (Alternative 4) Under Alternatives 2 and 3 there would be the long-term potential for groundwater to contact the contaminated soils and for storms and flood events to damage the containment system but because Alternative 3 removes contaminants down to a lower concentration the potential for groundwater impacts is reduced Both alternatives would require long-term maintenance to ensure the integrity of the compacted soil cover Alternatives 3 and 4 include a groundwater collection and treatment system that would reduce the spread of Site contaminants by preventing or limiting the migration of groundwater to the wetlands areas and the Back River For these reasons Alternative 2 would provide less long-term protection than Alternatives 3 or 4 Alternative 4 would provide the highest degree of long-term protection to human health and the environment and would prevent future migration of contaminants Alternative 1 would not comply with ARARs Alternatives 2 3 and 4 would comply with all potential ARARs although Alternatives 2 and 3 would require that the entire Site be considered a single Area of Concern for purposes of meeting LDR requirements Although Alternative 2 would not meet the PCB cleanup levels (lt10 ppm left on-site under a TSCA cap) in the self-implementing provisions of 40 CFR sect 76161(a)(4)(i)(A) for High Occupancy Areas the self-implementing cleanup provisions are not binding upon cleanups conducted under CERCLA and this alternative would meet the risk-based criteria of 40 CFR sect 76161(c) Alternatives 2 3 and 4 would reduce the mobility toxicity and volume of the contaminants in the soils and sediments with Alternative 4 having the greatest reduction followed by Alternative 3 and Alternative 2 Alternative 1 would not affect contaminant mobility toxicity or volume The implementation of Alternative 1 would not pose any additional short-term risks to the ones currently posed by the Site contamination Short-term risks to construction workers surrounding communities and the environment are expected to occur from the implementation of Alternatives 2 3 and 4 These risks include exposure to dust and vapor during excavation and construction activities as well as continued risks from the current Site conditions before the alternatives are fully implemented Alternatives 3 and 4 pose greater short-term impacts as compared to Alternative 2 due to more extensive excavation and off-site transportation of

US EPA Region 3 Sauer Dump Site EECA 4-13 HydroGeoLogic Inc April 2009

AR103717

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 4-14 HydroGeoLogic Inc April 2009

contaminated materials and additional construction activity associated with the groundwater collection and treatment system Engineering controls personal protective equipment and vapor and dust suppression measures can be used to mitigate the potential risks associated with the excavation and construction activities

442 Implementability

Alternative 1 requires no action and is therefore the most easily implemented For Alternatives 2 3 and 4 there is the possibility that the owners of Parcels 503 464 295 137 and 574 would not provide access to allow excavation of the contaminated soils on their properties However since all the property owners have granted access for sampling activities it is assumed that access would be granted to allow cleanup of their properties Alternatives 2 3 and 4 would require limiting the future use of Parcel 425 because of the need to protect monitor and maintain the compacted soil cover andor the groundwater collection and treatment system All three alternatives require long-term maintenance The long-term maintenance requirements of Alternative 3 would require additional resources as compared to Alternatives 2 and 4 Alternative 2 would require the fewest additional resources of the three alternatives There could be public opposition to alternatives 2 and 3 as they would leave hazardous substances in place at the Site There could also be public opposition to the excavation activities and increased traffic impacts associated with the off-site transportation of the excavated soils and sediments as part of all three alternatives however Alternatives 3 and 4 would have a significantly greater traffic impact due to the increased volumes of contaminated soils and sediments that would be disposed off-site as well as increased excavation and construction activities

443 Cost

Alternative 1 has the least cost $0 Alternative 2 has the next lowest cost $ 604 million Of the removal alternatives which provide some measure of groundwater control in addition to soil and sediment remediation Alternative 3 with a $ 939 million present worth is the least expensive and Alternative 4 with a $ 1272 million present worth is the most expensive alternative

AR103718

TABLE

AR103719

Table 41 Individual Evaluation of Remedial Alternatives for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 1 of 2

H

ydroGeoL

ogic Inc March 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

Criteria Alternative 1 No Action

Alternative 2 Surface Cap Excavation

and Off-Site Disposal

Alternative 3 Surface Cap Excavation

Off-Site Disposal and Groundwater Collection and

Treatment

Alternative 4 Excavation Off-Site

Disposal and Groundwater Collection

and Treatment 1 EFFECTIVENESS

Long-term protection of human health and the environment

No significant reduction in risk Not protective of human health or the environment

Would provide long-term protection of human health and the environment provided that the cover is maintained properly

Would provide long-term protection of human health and the environment provided that the cover and groundwater treatment system are maintained properly

Would provide long-term protection of human health and the environment provided that the groundwater treatment system is maintained properly

Long-term prevention of contaminant migration

No reduction in contaminant migration potential

Migration of soil and sediment contaminants would be significantly decreased There would be potential for groundwater contaminants to increase if groundwater comes into direct contact with contaminated subsurface soils

Migration of soilsediment and groundwater contaminants would be significantly decreased Although the potential would exist (as in Alternative 2) for GW to come into contact with residual contamination there would be lower concentrations of contamination than in Alternative 2

Because contaminated materials would be removed from Site down to the PRGs of 1 ppm PCBs and 400 ppm of lead migration of groundwater contaminants would be significantly decreased

Compliance with ARARs

Would not comply with ARARs

Would comply with potential ARARs as long as the entire Site is considered a single Area of Concern

Would comply with potential ARARs as long as the entire Site is considered a single Area of Concern

Would comply with potential ARARs

Short-term protection of human health and the environment

No short-term impacts

Impacts from excavation and construction activities could be mitigated with engineering controls personal protective equipment and vapordust suppression measures

See Alternative 2 Alternative 3 would pose increased potential for traffic accidents and off-site spills due to off-site transportation of additional excavated soils and sediments

See Alternative 2 Alternative 4 would pose increased potential for traffic accidents and off-site spills due to off-site transportation of all excavated soils and sediments

US E

PA

Region 3

AR103720

Table 41 (continued) Individual Evaluation of Remedial Alternatives for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 2 of 2

H

ydroGeoL

ogic Inc March 2009

Criteria Alternative 1 No Action

Alternative 2 Surface Cap Excavation

and Off-Site Disposal

Alternative 3 Surface Cap Excavation

Off-Site Disposal and Groundwater Collection and

Treatment

Alternative 4 Excavation Off-Site

Disposal and Groundwater Collection

and Treatment

Decrease in contaminant mobility toxicity and volume

No change in contaminant mobility toxicity or volume

Contaminant mobility toxicity and volume would be decreased in soils and sediments Because of the proximity of contaminated materials to groundwater and the tidal influence on the local groundwater it is possible that contaminants would continue to spread to the groundwater

Contaminant mobility toxicity and volume would be decreased to a greater degree than Alternative 2 It is possible that contaminants would continue to spread to the groundwater but the groundwater management system would reduce the mobility of these contaminants

Contaminant mobility toxicity and volume would be decreased to a greater degree than Alternative 3

2 IMPLEMENTABILITY

Potential Implementability Issues

None

Owners might not grant access to allow excavation of contaminated soils andor sediments Parcel 425 would require limited future land use options associated with compacted soil cover There could be local opposition to the capping of hazardous substances in place at the Site

See Alternative 2 It is unknown if technology can attain the PRGs for PCBs

Owners might not grant access to allow excavation of contaminated soils andor sediments Parcel 425 would require limited future land use options associated with the groundwater collection and treatment system There could be public opposition to the extensive truck traffic required for off-site transportation of the contaminated soils and sediments It is unknown if technology can attain the PRGs for PCBs

3 COST Total Project Cost $0 $ 604 Million $ 939 Million $ 1272 Million

AR103721

FIGURES

AR103722

Legend

Figure 41Alternative 2

Proposed Limits ofSoil Excavation

XEPA010SauerCost_Analysis_DraftExc_Limits_Alt2mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

XW

XWXW

XW

XWXWXWXWXWXWXWXWXWXW

XW

XWXWXW

XWXW

XW

XW

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3

Parcel Boundary

NoteThe proposed surface cap under Alternative 2 will extend over the entire area of Parcel 425The proposed limits of sediment excavation are shown on Figure 15

Grid Soil Samples

0 80 16040

SCALE IN FEET

Proposed Limits of Excavation

Surveyed Wetlands(ENSAT 2005)

Subsurface Soil Sample ExceedingAlternative 2 ConcentrationRequiring Excavation

Surface and Subsurface Soil SampleExceeding Alternative 2 ConcentrationRequiring Excavation

XW

Surface Soil Sample ExceedingAlternative 2 ConcentrationRequiring Excavation

AR103723

Legend

Figure 42Alternatives 2 and 3

Proposed Extentof TSCA Cap

XEPA010SauerCost_Analysis_DraftCompacted_Soil_Alt2-3mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

Grid Soil Samples

Surveyed Wetlands(ENSAT 2005)

Proposed Extent of TSCA Cap

AR103724

Legend

Figure 43Alternative 3

Proposed Limits ofSoil Excavation

XEPA010SauerCost_Analysis_DraftExc_Limits_Alt3mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

X

X

X XXXX X

X

X

XXXXXXXXXX

X

XXX

XXX

XX

X

X

X

W

W

W WWWW W

W

W

WWWWWWWWWW

W

WWW

WWW

WW

W

W

W

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

NoteThe proposed surface cap under Alternative 3 will extend over the entire area of Parcel 425The proposed limits of sediment excavation are shown on Figure 15

Grid Soil Samples

Proposed Limits of Excavation

Surveyed Wetlands(ENSAT 2005)

Surface Soil Sample ExceedingAlternative 3 ConcentrationRequiring Excavation

Subsurface Soil Sample ExceedingAlternative 3 ConcentrationRequiring Excavation

Surface and Subsurface Soil SampleExceeding Alternative 3 ConcentrationRequiring Excavation

XW

AR103725

Legend

Figure 44Alternatives 3 and 4

Proposed GroundwaterInterceptor Trench Locations

XEPA010SauerCost_Analysis_DraftGW_TrenchmxdMap Source NAIPMiddle River MD 2007022309 PD

HGLmdashDraft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

Parcel 425

Parcel 137

Parce

l 295

Parce

l 464

Parce

l 503

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

Surveyed Wetlands(ENSAT 2005)

Notes1 All soil samples shown on figure contained one or more PRG exceedances2 All grid soil samples collected exceeded PRGs

Groundwater Interceptor Trench

Groundwater Interceptor Trench

AR103726

Legend

Figure 45Alternative 4

Proposed Limits ofSoil Excavation

XEPA010SauerCost_Analysis_DraftExc_Limits_Alt4mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

XW

XW

XW XWXWXWXWXW XW

XW

XW

XWXWXWXWXWXWXWXWXWXW

XW

XWXWXW

XWXWXW

XWXW

XW

XW

XW

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

NoteThe proposed limits of sediment excavation are shown on Figure 15

Grid Soil Samples

Proposed Limits of Excavation

Surveyed Wetlands(ENSAT 2005)

Surface Soil Sample ExceedingAlternative 4 ConcentrationRequiring Excavation

Subsurface Soil Sample ExceedingAlternative 4 ConcentrationRequiring Excavation

Surface and Subsurface Soil SampleExceeding Alternative 4 ConcentrationRequiring Excavation

XW

AR103727

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

50 SUMMARY

Based on the potential ARARs and PRGs presented in Section 2 four removal alternatives were developed These alternatives were 1) No Action 2) Surface Cap Excavation and Off-Site Disposal 3) Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment and 4) Excavation Off-Site Disposal and Groundwater Collection and Treatment Each alternative was evaluated with respect to effectiveness implementability and cost Alternative 1 No Action would not be an effective alternative This alternative would not protect human health or the environment would not prevent contaminant migration and would not comply with ARARs Alternatives 2 3 and 4 generally provide effective approaches to the protection of human health and the environment All three alternatives would comply with ARARs although Alternatives 2 and 3 rely on the classification of the entire Site as a single Area of Concern Alternatives 2 3 and 4 would decrease migration of soil and sediment contaminants to other media Under Alternatives 2 and 3 there is the long-term potential for groundwater to contact the contaminated soils and for storms and flood events to damage the containment system but because Alternative 3 removes contaminants down to a lower concentration the potential for groundwater impacts is reduced Both alternatives would require long-term maintenance to ensure the integrity of the compacted soil cover Alternatives 3 and 4 include a groundwater collection and treatment system that reduces the spread of Site contaminants by preventing or limiting the migration of groundwater to the wetlands areas and the Back River For these reasons Alternative 2 would provide less long-term protection than Alternatives 3 or 4 Alternative 4 would provide the highest degree of long-term protection to human health and the environment and would prevent future migration of contaminants All alternatives would prevent continued migration of soil and sediment contaminants Alternatives 2 3 and 4 each would pose short-term risks to workers and the community These risks however could be mitigated through use of engineering controls personal protective equipment and vapordust suppression measures Alternative 4 would pose the greatest short-term risks because of the significant increase in truck traffic required Alternative 2 should pose the lowest level of short-term risks Alternatives 2 3 and 4 would all decrease contaminant mobility and would reduce contaminant toxicity and volume The reduction in contaminant toxicity mobility and volume achieved with Alternative 4 would be the greatest followed those seen with Alternative 3 The implementability evaluation indicated that Alternative 4 would likely be the most difficult to implement because of the need for the groundwater management system and the off-site disposal of all contaminated soils and sediments Alternatives 3 and 4 may be difficult to implement because of the PRGs for groundwater Aside from the No Action Alternative Alternative 2 would be the easiest to implement

US EPA Region 3 Sauer Dump Site EECA 5-1 HydroGeoLogic Inc April 2009

AR103728

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 5-2 HydroGeoLogic Inc April 2009

Alternative 2 at a total present worth of $ 604 million would be less expensive than Alternatives 3 and 4 Alternative 4 has the both the highest degree of protectiveness and the greatest estimated cost $ 1272 million Alternative 3 would provide a high degree of protection at a cost of $ 939 million The comparison performed as part of this evaluation indicates that while Alternative 4 appears to be the most protective Alternatives 2 through 4 are all generally protective The incremental cost increases (approximately 55 between Alternatives 2 and 3 and 35 between Alternatives 3 and 4) are accompanied by increases in overall protectiveness that are difficult to quantify accurately and in the case of the groundwater pathway may be difficult or impossible to achieve in practice Alternative 2 appears to be the most easily implemented and least costly protective approach for this Site

AR103729

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

60 REFERENCES

Air Force Center for Environmental Excellence (AFCEE) 1999 ldquoSurvey of Air Force Landfills Their Characteristics and Remediation Strategiesrdquo Prepared for Air Force Center for Environmental Excellence by Mitretek Systems July 1999

Environmental Service and Technology Corporation (ENSAT) 2002a ldquoRemedial

Investigation and Focused Feasibility Study ndash Sauer Dump MD-181 4225 Lynhurst Road Baltimore Baltimore County Marylandrdquo ENSAT July 2002

ENSAT 2002b ldquoBaseline Risk Assessment Datascreen for Sauer Dump Dundalk

Marylandrdquo ENSAT July 2002 ENSAT 2005 ldquoRemedial Investigation - Sauer Dump MD-181 4225 Lynhurst Road

Baltimore Baltimore County Marylandrdquo ENSAT August 2005 Environmental Protection Agency (EPA) 2007 ldquoAction Memo - Request for Removal Action

and Exemption from the $2 Million Statutory Limit ndash Sauer Dumprdquo US Environmental Protection Agency August 3 2007

EPA 2006 ldquoNational Recommended Water Quality Criteriardquo Office of WaterOffice of

Science and Technology US Environmental Protection Agency July 2006 httpwwwepagovwatersciencecriteriawqctablenrwqc-2006pdf

EPA 2000 ldquoA Guide to Developing and Documenting Cost Estimates during the Feasibility

Studyrdquo EPA 540-R-00-002 OSWER 93550-75 US Environmental Protection Agency July 2000

EPA 1994 ldquoRevised Interim Soil Lead Guidance for CERCLA Sites and RCRA Corrective

Action Facilitiesrdquo OSWER Directive 93554-12 US Environmental Protection Agency July 14 1994

EPA 1993 Conducting Non-Time-Critical Removal Actions Under CERCLA EPA540F-

94009 EPA 1992 ldquoCERCLASUPERFUND Orientation Manualrdquo EPA542R-92005 US

Environmental Protection Agency - Office of Solid Waste and Emergency Response Technology Innovation Office October 1992

EPA 1989 ldquoSuperfund LDR Guide 5 - Determining When Land Disposal Restictions

(LDRs) Are Applicable to CERCLA Response Actionsrdquo Environmental Protection Agency - Office of Solid Waste and Emergency Response - 93473-05FS July 1989

US EPA Region 3 Sauer Dump Site EECA 6-1 HydroGeoLogic Inc April 2009

AR103730

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 6-2 HydroGeoLogic Inc April 2009

Federal Remediation Technology Roundtable (FRTR) 2002 ldquoRemediation Technologies Screening Matrix and Reference Guide Version 40rdquo Federal Remediation Technology Roundtable httpwwwfrtrgovmatrix2top_pagehtml

Interstate Technology amp Regulatory Council (ITRC) 2003 ldquoTechnical and Regulatory

Guidance for SurfactantCosolvent Flushing of DNAPL Source Zonesrdquo DNAPLs-3 Washington DC Interstate Technology amp Regulatory Council DNAPLs Team Available on the Internet at httpwwwitrcweborg

ITRC 1997 ldquoTechnical and Regulatory Guidance for Soil Washingrdquo Interstate Technology

and Regulatory Council ndash Metals in Soil Work Team December 1997 Malcolm Pirnie 2007 ldquoExtent of Contamination Study ndash Sauer Dump Site Dundalk

Baltimore County Marylandrdquo Malcolm Pirnie Inc June 2007

AR103731

APPENDICES

AR103732

APPENDIX A

HISTORIC ANALYTICAL DATA TABLES Table A1a-b ndash Surface Soil Analytical Data Table A2a-c ndash Subsurface Soil Analytical Data Table A3 ndash Sediment Analytical Data Table A4 ndash Surface Water Analytical Data Table A5 ndash Groundwater Analytical Data

AR103733

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0011 B 025 001 U 1 U 1 U 0044 B 0056 B 0036 B 0071 B 0029 B 0093 B 0007 JB 0013 B 0011 U 0018 BAcetonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UBromoform 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UBromomethaneMethyl bromide 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Un-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UCarbon Tetrachloride 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UChlorobenzene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UChloroethaneEthyl chloride 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U2-ChloroethanolEthylene chlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 001 U 50 U 50 U nr nr nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0002 JB 0011 U 0011 U 0002 JB 0015 U 0001 JB 0011 U 0011 U 0002 JBChloromethaneMethyl chloride 001 U 001 U 001 U 25 U 25 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UChloroprene nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr12-Dibromoethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDichlorodifluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr11-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U12-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U11-Dichloroethene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Ucis-12-Dichloroethene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrtrans-12-Dichloroethene 0005 U 0005 U 0005 U 5 U 5 U nr nr nr nr nr nr nr nr nr nr12-Dichloroethene (Total) nr nr nr nr nr 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U13-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Utrans-13-Dichloropropene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg18 93 24 34 14 9 9 309 16 13 9

1 1 1 1 1 1 11 11 1 1not reported not reported not reported not reported

no no no no no no nono nono no no no noyes yesyes yes yes yes yes yes yes yes yes yesyes yes

no no nono no no nono no no no no no noyes yes yes yes yes yes yes yes yes yesyes yes yes yes

yes yes yes yes yes yes yesyes yesyes yes no no yesyes yesyes yes yes yes yes yes yes yes yes yesyes yes

BackgroundDuplicate of S-5Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilNUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS

120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

yes

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

no

161

062785

not reported1

yes

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

yesno

yes

mgKg

Page 1 of 30

AR103734

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone 001 U 001 U 001 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U2-Hydroxypropionitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrIsopropylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrp-Isopropyl Toluene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 00073 B 00071 B 0011 B 20 9 0035 B 0086 B 003 B 0042 B 0048 B 0043 B 0025 B 0016 B 0016 B 0027 B1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 001 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrStyrene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U1112-Tetrachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UTetrachloroethene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0002 J 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 00067 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr111-Trichloroethane 0014 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U112-Trichloroethane 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UTrichloroethene 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrTrichlorofluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr123-Trichloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U 001 U 1 U 1 U nr nr nr nr nr nr nr nr nr nrVinyl Chloride 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U m+p-Xylenes nr nr nr nr nr nr nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 0005 U 10 U 10 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0002 J 0014 U

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg9 30

mgKg mgKg mgKg mgKg mgKg mgKg24 34 14 9161 18 93 9 16 13 9

1 11 1 1 1 1 1 11 1 1 1not reportednot reported not reported not reported not reported

Page 2 of 30

AR103735

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 0039 J 04 J 033 J 0048 J 36 U 11 U 047 UAcenaphthylene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 016 J 038 U 36 U 11 U 047 UAcetophenone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAnthracene 22 U 22 U 22 U nr nr 0077 J 12 U 037 U 011 J 06 J 11 J 016 J 36 U 11 U 047 UAtrazine nr nr nr U U nr nr nr nr nr nr nr nr nr nrBenzaldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzo(a)Anthracene 22 U 22 U 22 U nr nr 046 2 J 012 J 081 21 36 089 038 J 029 J 047 UBenzo(a)Pyrene 22 U 22 U 22 U nr nr 053 32 J 016 J 04 18 28 061 042 J 028 J 047 UBenzo(b)fluoranthene 18 J 22 U 22 U nr nr 12 J 47 J 047 J 088 J 51 J 7 J 2 J 092 J 067 J 012 JBenzo(ghi)Perylene 22 U 22 U 22 U nr nr 036 U 19 J 037 U 036 U 13 U 05 J 061 36 U 11 U 047 UBenzo(k)fluoranthene 22 U 22 U 22 U nr nr 12 J 47 J 047 J 088 J 51 J 7 J 2 J 092 J 067 J 012 JBenzylbutylphthalateButylbenzylphthalate 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 29 22 043 J 018 J 0067 J11-Biphenyl nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Bromophenyl-phenylether 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UCaprolactam nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCarbazole nr nr nr nr nr 0047 J 12 U 037 U 009 J 053 J 053 J 01 J 36 U 11 U 047 U4-Chloroaniline 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Chloroethoxy)Methane 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Chloroethyl)Ether 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Chloroisopropyl)Ether 22 U 22 U 22 U nr nr nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U4-Chloro-3-Methylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U2-Chloronaphthalene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U2-Chlorophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U4-Chlorophenyl-phenylether 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UChrysene 12 J 22 U 22 U nr nr 054 22 J 016 J 057 19 31 066 039 J 026 J 047 UDibenzo(ah)Anthracene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 026 J 038 U 36 U 11 U 047 UDibenzofuran 22 U 22 U 22 U nr nr 036 U 12 U 037 U 0044 J 031 J 031 J 0074 J 36 U 11 U 047 U12-Dichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U13-Dichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U14-Dichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U33-Dichlorobenzidine 46 U 44 U 46 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U24-Dichlorophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDiethylphthalate 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U24-Dimethylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDimethyl Phthalate 22 U 22 U 22 U nr nr 0048 J 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDi-n-Butylphthalate 78 19 JB 18 JB nr nr 0045 JB 12 U 004 JB 036 U 13 U 022 JB 012 JB 071 JB 11 U 047 U46-Dinitro-2-Methylphenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U24-Dinitrophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U24-Dinitrotoluene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U26-Dinitrotoluene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDi-n-Octyl Phthalate 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Ethylhexyl)Phthalate 22 15 J 34 nr nr 045 B 12 U 022 JB 071 B 044 JB 16 B 13 B 29 JB 13 B 0082 JBFluoranthene 15 J 22 U 25 nr nr 093 2 J 031 J 091 71 75 2 07 J 055 J 0063 JFluorene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 0061 J 06 J 047 J 0086 J 36 U 11 U 047 UHexachlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UHexachlorobutadiene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UHexachlorocyclopentadiene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UHexachloroethane 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UIndeno(123-cd)Pyrene 22 U 22 U 22 U nr nr 036 U 19 J 037 U 036 U 13 U 02 J 038 U 36 U 11 U 047 UIsophorone 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 016 J 038 U 36 U 11 U 047 U2-Methylnaphthalene 22 U 22 U 22 U nr nr 0041 J 12 U 037 U 0046 J 13 U 017 J 0098 J 24 J 11 U 047 U2-Methylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U4-Methylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 014 J 15 U 038 U 36 U 11 U 047 UMethylMercury nr nr nr nr nr nr U nr U nr U nr U nr U nr U nr U nr U nr U nr UNaphthalene 22 U 22 U 22 U nr nr 004 J 12 U 037 U 0062 J 014 J 027 J 012 J 20 015 J 047 U2-Nitroaniline 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U3-Nitroaniline 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U4-Nitroaniline 112 U 112 U 114 U nr nr 0088 J 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 UNitrobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U2-Nitrophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U4-Nitrophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 UN-Nitroso-Di-n-Propylamine 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UN-Nitrosodiphenylamine 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U22-Oxybis(1-Chloropropane) nr nr nr nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UPentachlorophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 UPhenanthrene 063 J 22 U 13 J nr nr 026 J 12 U 0086 J 042 56 46 072 047 J 026 J 047 UPhenol 22 U 22 U 22 U nr nr 0092 J 12 U 0085 J 0046 J 13 U 15 U 0083 J 21 018 J 0082 JPyrene 14 J 13 J 25 nr nr 084 25 J 025 J 1 45 5 15 065 J 043 J 0051 J124-Trichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U245-Trichlorophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U246-Trichlorophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U

mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg34 14 9 9 309 16 13 9 24

1 1 3 3 3 11 105 5 1 30

mgKg

5Not reported Not Reported Not Reported

mgKg mgKg

Page 3 of 30

AR103736

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 15590 13830 10510 nr nr 6840 4820 4670 7220 7360 9850 16400 1460 8820 8850 Antimony 31 U 29 U 31 U 21 5 U 36 U 36 U 37 U 4 U 35 U 88 B 217 563 35 U 41 UArsenic 14 J 243 J 238 J 133 179 68 2 B 22 B 23 B 39 156 296 23 B 28 33 Barium 237 176 215 nr nr 758 644 283 B 625 425 B 271 728 358 B 618 709 Beryllium 3 U 3 U 3 U 05 U 05 U 059 B 03 B 053 B 038 B 045 B 069 B 059 B 013 B 058 B 058 BCadmium 277 3 U 346 473 539 072 B 021 U 022 U 024 U 035 U 41 186 11 B 036 U 042 UCalcium 89630 106980 67360 nr nr 52400 46900 14300 59200 61100 30500 26500 6660 20200 1860 Chromium 346 163 356 130 107 361 241 109 27 392 134 645 242 313 143 Chromium III nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 24 U 27 U 25 U nr nr 39 B 32 B 24 B 62 B 78 B 147 196 85 B 65 B 135 BCopper 381 323 377 756 573 429 335 168 279 275 1540 1070 928 362 168 Iron 31440 15280 22600 nr nr 12500 8490 9260 13500 14700 59600 85600 9680 21200 9790 Lead 371 J 209 J 827 J 1489 2542 672 903 251 946 488 1170 3160 600 875 532 Magnesium 25940 20550 15590 nr nr 19800 17200 3360 10100 11800 24000 6380 2740 8610 1040 BManganese 1060 J 809 J 731 J nr nr 525 197 864 386 185 2910 1440 195 382 511 Mercury 062 03 049 77 75 027 81 031 032 006 U 31 56 16 028 009 BNickel 199 22 U 169 641 773 608 92 49 B 19 226 882 304 449 46 112 Potassium 2630 1790 J 2380 J nr nr 1020 B 855 B 482 B 1140 B 1210 731 B 572 B 166 B 693 B 405 BSelenium 101 3 U 3 U 42 016 21 095 B 082 B 15 17 8 182 21 097 U 14 Silver 5 U 6 U 5 U 169 145 17 B 054 U 054 U 059 U 14 B 86 116 17 B 17 B 19 BSodium 693 J 738 J 594 J nr nr 187 B 135 B 694 B 297 B 198 B 327 B 338 B 704 B 130 B 509 BThallium 6 U 5 U 6 U 12 5 U 026 U 029 U 028 U 032 U 092 U 092 U 093 U 095 U 095 U 1 UTin 19 U 22 U 20 U nr nr nr nr nr nr nr nr nr nr nr nrVanadium 24 U 27 U 25 U nr nr 779 237 197 486 394 119 551 73 B 318 247 Zinc 543 497 540 2920 2609 109 163 48 263 109 1910 4790 420 108 755 Cyanide 12 U 13 U 12 U nr nr 055 U 054 U 054 U 061 U 061 U 061 U 065 U 065 U 062 U 071 U

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg131 229 244 29217 197 117 114 195 224 247 232

1 1Not Reported 1 11 1 1 1 1 1

mgKg

Not Reported129 178 12

Not Reported

Page 4 of 30

AR103737

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 0039 U 0041 U 0036 U U U 00018 U 00037 0002 U 00019 U 00032 0026 U 02 U 00037 U 001 00024 Ualpha-BHC 0039 U 0041 U 0036 U U U 00018 U 000012 J 0002 U 00019 U 000024 J 000068 J 02 U 00037 U 00019 U 00024 Ubeta-BHC 0039 U 0041 U 0036 U U U 00018 U 0002 U 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 000051 Jdelta-BHC 0039 U 0041 U 0036 U U U 00018 U 0002 U 000022 J 00019 U 00022 U 0026 U 02 U 00037 U 0002 00024 Ugamma-BHC (Lindane) 0039 U 0041 U 0036 U U U 00018 U 0002 U 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 00024 Ualpha-Chlordane nr nr nr U U 00018 U 0002 U 0003 00019 U 0017 0026 U 02 U 00037 U 0026 000045 Jgamma-Chlordane nr nr nr U U 00018 U 00042 00027 00019 U 003 0026 U 02 U 00011 J 005 00024 UChlordane total 0385 U 0405 U 036 U U U nr nr nr nr nr nr nr nr nr nr44-DDD 0077 U 0081 U 0072 U U U 00036 U 00039 U 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 00047 U44-DDE 0077 U 0081 U 0072 U U U 00036 U 00039 U 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 00047 U44-DDT 0077 U 0081 U 0072 U U U 00036 U 00039 U 00038 U 00036 U 00028 J 005 U 038 U 00073 U 00036 U 000033 JDieldrin 0077 U 0081 U 0072 U U U 00036 U 00088 00038 U 00036 U 0017 005 U 038 U 00073 U 00036 U 000023 JEndosulfan I 0039 U 0041 U 0036 U U U 00018 U 0002 U 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 00024 UEndosulfan II 0077 U 0081 U 0072 U U U 00036 U 000033 J 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 001 Endosulfan sulfate 0077 U 0081 U 0072 U U U 00036 U 000049 J 0000096 J 00036 U 000046 J 0019 J 02 J 00073 U 00036 U 00047 UEndrin 0077 U 0081 U 0072 U U U 00036 U 00083 00038 U 00036 U 001 005 U 038 U 00073 U 00036 U 00011 JEndrin aldehyde 0077 U 0081 U 0072 U U U 00036 U 00039 U 000024 J 00036 U 00043 U 005 U 038 U 00073 U 00024 J 00047 UEndrin ketone 0077 U 0081 U 0072 U U U 000009 J 00042 J 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 00047 UHeptachlor 0039 U 0041 U 0036 U U U 00018 U 000069 JB 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 00024 UHeptachlor epoxide 0039 U 0041 U 0244 N U U 00018 U 0002 U 0002 U 00019 U 000022 J 0026 U 02 U 00037 U 00019 U 00024 UMethoxychlor 0077 U 0081 U 0072 U U U 0018 U 002 U 002 U 0019 U 0023 B 0035 JB 2 U 00054 JB 00013 JB 000071 JBToxaphene 077 U 081 U 072 U U U 018 U 02 U 02 U 019 U 022 U 26 U 20 U 037 U 019 U 024 UAroclor-1016 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1221 0385 U 0405 U 036 U U U 0073 U 0078 U 0078 U 0073 U 0088 U 1 U 77 U 015 U 0074 U 0094 UAroclor-1232 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1242 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1248 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1254 4557 3305 6565 62 110 016 0039 U 012 032 0043 U 29 150 11 048 0047 UAroclor-1260 077 U 081 U 072 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UTotal PCBs 4557 3305 6565 62 110 016 012 032 29 150 11 048

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

Incomplete lab report No Other Pesticides or PCBs detected

Incomplete lab report No Other Pesticides or PCBs detected

mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg13 9 24 34Not Reported Not Reported 9 16 14 9 9 301 1 1 10 1 and 5 1100 210 10 1 1

Not Reported Not Reported Not Reported10

Not ReportedmgKg

Page 5 of 30

AR103738

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr 04198 U 04287 03753 U 03703 U 0363 U 03745 U 03583 U 04443 U 03592 nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 02793 02106 02093 01892 01624 01727 00878 01865 0141 nr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgNA NANA NA NA NA NA NA NA

Not Reported Not Reported Not Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot ReportedEPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260

no no no no no no no nono nono no nono noyes yes yes yes yesPCBs PCBs PCBs PCBs yes yes yes yesPCBs PCBs

no no no no no no no no no nono no no no noyes yesyes yes yes yes yes yes yesyes yesyes yes yes yes

no no yes yes yes yes yes yesyes yesno no yesno noyes yes yes yes yesno no no no yes yes yes yesno no

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Page 6 of 30

AR103739

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl Chloride m+p-Xyleneso-XyleneXylenes (Total)

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 00933 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 00912 00832 00751 U 00741 U 00726 U 00754 00717 U 00988 00705 nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 02354 01987 01828 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 01538 01584 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 02347 nr nr nr nr nr nr nr nrnr nr nr nr nr nr 02914 nr nr nr nr nr nr nr nrnr nr nr nr nr nr 05261 01442 U 01501 U 01481 U 01452 U 01498 U 01433 U 01777 U 01355 U

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded

mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKgNA NANA NA NA NANA NA NA

Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported Not Reported Not Reported Not ReportedEPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260

Page 7 of 30

AR103740

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U J Jnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nrnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U J U Jnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr J J J U B B B B Bnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U J J U Unr nr nr nr nr nr U U U U U U U Jnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nrnr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr 8039 E 871 Enr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U J J J U Jnr nr nr nr nr nr U U U U U U U U

Incomplete lab report No SVOCs detected

Incomplete lab report No other SVOCs detected

Incomplete lab report No other SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

mgKgmgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgNot reportedNA NA NA Not Reported Not reported Not reported Not reportedNA

EPA 625 EPA 625EPA 625 EPA 625 EPA 625EPA 625 EPA 625 EPA 625 EPA 625

Page 8 of 30

AR103741

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag3475 8270 6484 6817 8117 14611 10768 8812 9560 4347 9785 63780 8393 10860 13859

10 U 10 U 10 U 10 U 10 U 10 U 566 25 U 12 336 25 U 25 U 25 U 25 U 25 U137 162 122 262 54 05 U 141 129 331 13 957 679 222 3055 3143 103 199 1225 435 577 1132 166 100 396 191 177 514 348 571 848 025 U 047 025 028 238 112 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U178 18 104 735 469 284 228 223 504 206 785 5 U 5 U 5 U 5 U

27585 26998 37572 14720 22380 100550 11935 15952 12179 42072 13471 17532 48377 44415 19243 468 108 54 23 291 124 110 130 378 475 742 192 244 35 177 nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr nr nr nrnr U nr U nr U nr U nr U nr U nr nr nr nr nr nr nr nr nr77 72 5 41 29 24 124 135 229 157 552 497 5 U 5 U 62 216 449 255 97 1236 217 394 270 3303 445 241 25 174 355 33

8047 67528 18682 31513 8983 2677 83701 95937 191564 59983 23296 12549 9139 12305 14426 504 1274 544 432 365 76 1409 5944 2232 1407 529 341 449 30 479

7829 8548 9922 4548 3700 3558 6192 4581 5246 960 3000 7343 9079 8993 8959 758 906 619 545 220 960 873 385 2183 872 415 842 137 344 557 169 242 151 149 032 029 333 098 561 619 266 06 U 017 011 01 U472 685 368 12 196 9 87 120 285 303 34 101 126 102 103 838 556 706 651 638 1842 738 634 565 905 780 863 1606 699 2101 125 U 125 U 125 U 125 U 125 U 125 U 14 16 926 895 167 125 U 125 U 125 U 125 U13 134 14 17 11 05 U 25 U 25 U 389 25 U 25 U 25 U 25 U 25 U 25 U143 206 134 102 853 556 986 2262 2557 7875 587 267 224 1186 687 10 U 10 U 10 U 10 U 10 U 10 U 125 U 125 U 125 U 125 U 125 U 125 U 125 U 125 U 125 Unr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U

212 107 142 17 146 36 316 24 357 31 26 249 26 262 22 113 1462 1160 1169 332 198 1525 4050 4775 1499 624 526 539 575 673 nr U nr U nr U nr U nr U nr U 0179 U 019 U 0454 0194 U 0333 019 U 0191 U 0209 U 0236 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

1 11 1

mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKgNot ReportedNot Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported

Not Reported Not Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot Reported Not Reported

Page 9 of 30

AR103742

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U

025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 Unr U nr U nr U nr U nr U nr U nr U nr U nr U

44 6 6 4 2 02 2594 8478 E 681 E 166 J 132 025 U 025 U 07 025 U025 U 025 U 025 U 64 J 025 U 025 U 025 U 025 U 025 U

44 6 6 4 2 02 2594 8478 681 23 132 07

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKgNot ReportedNot Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot Reported Not Reported

Not Reported Not Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot Reported Not ReportedEPA 8081EPA 8081 EPA 8081 EPA 8081 EPA 8081 EPA 8081 EPA 8081EPA 8081 EPA 8081

Page 10 of 30

AR103743

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0007 JB 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0004 J 0003 J nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0002 J 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0004 J 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg10 13 21 2015 1752 82

1 11 1 1 1 1 1EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260

nono no no no no no no nono no no no no noyes yesyes yes yes yesyes yes yes yesyes yesyes yes yes

no no nono no no no no no no nono nono nono no no no no noMetals only Metals only yes yesyes yes yesyes yes

noyes yes yes no no no no noyes yes yes yes yes yesno noyes yes no noyes yes no noyes yesyes yes yes

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Page 11 of 30

AR103744

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl Chloride m+p-Xyleneso-XyleneXylenes (Total)

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0024 J nr nr nr nr nr nr nr nr

0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0006 JB 00056 U 00057 U 0002 JB 0009 JB 0002 JB 0003 JB 0002 JB 0002 JB nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0002 J 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0001 J 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg21 2013 52 82 1715 101 11 1 11 1 1

EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260

Page 12 of 30

AR103745

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag01 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0097 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr0069 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr021 J 183 U 19 U 0098 J 18 U 04 U 04 U 0049 J 041 U nr nr nr nr nr nr048 U nr nr nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr

0066 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 183 U 19 U 057 J 038 J 014 J 015 J 019 J 019 J nr nr nr nr nr nr14 183 U 19 U 059 J 041 J 015 J 016 J 024 J 017 J nr nr nr nr nr nr15 183 U 19 U 1 064 J 015 J 017 J 023 J 018 J nr nr nr nr nr nr14 183 U 19 U 018 J 18 U 0053 J 026 J 033 J 041 U nr nr nr nr nr nr13 183 U 19 U 056 J 048 J 013 J 012 J 016 J 018 J nr nr nr nr nr nr18 183 U 19 U 069 U 18 U 04 U 012 J 025 J 069 nr nr nr nr nr nr

0056 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr012 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr

048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr15 183 U 19 U 081 057 J 015 J 018 J 021 J 02 J nr nr nr nr nr nr041 J 183 U 19 U 012 J 18 U 04 U 04 U 0057 J 041 U nr nr nr nr nr nr013 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr

048 U 376 U 379 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0033 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0048 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr034 J 183 U 19 U 069 U 18 U 04 U 04 U 01 J 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0052 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr083 183 U 19 U 079 038 J 011 J 025 J 016 J 023 J nr nr nr nr nr nr18 183 U 19 U 088 045 J 025 J 026 J 04 J 028 J nr nr nr nr nr nr

0098 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 183 U 19 U 038 J 028 J 0089 J 02 J 024 J 0091 J nr nr nr nr nr nr

0078 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr025 J 183 U 19 U 069 U 18 U 04 U 04 U 0052 J 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nrnr nr nr nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr02 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr095 183 U 19 U 028 J 18 U 013 J 014 J 021 J 011 J nr nr nr nr nr nr014 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr21 183 U 19 U 11 052 J 026 J 031 J 05 039 J nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

mgKg mgKg mgKg mgKg mgKgmgKgmgKg mgKg mgKg82 1731 10 17 21 205213

1 1 1 1 1 15 5EPA 8070 EPA 8070 EPA 8070EPA 8070EPA 8270 EPA 8270 EPA 8070 EPA 8070

Page 13 of 30

AR103746

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag10800 nr nr 9300 9400 7200 20000 8200 9800 nr nr nr nr nr nr

253 J 45 U 47 U 34 60 U 10 U 21 10 U 10 U nr nr nr nr nr nr301 82 127 56 20 73 65 72 82 nr nr nr nr nr nr462 nr nr 160 120 70 240 90 104 nr nr nr nr nr nr043 J 045 U 047 U 093 15 15 26 16 093 nr nr nr nr nr nr138 063 084 27 36 13 2 19 15 nr nr nr nr nr nr

24900 nr nr 9500 6100 4900 56000 32000 12000 nr nr nr nr nr nr227 J 49 72 120 110 48 40 34 52 nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

265 nr nr 82 14 44 47 48 44 nr nr nr nr nr nr1510 J 45 79 290 150 71 31 120 61 nr nr nr nr nr nr

171000 nr nr 47000 22000 20000 15000 25000 20000 nr nr nr nr nr nr4520 76 181 340 150 120 730 160 130 nr nr nr nr nr nr5640 J nr nr 5800 5100 1600 17000 6300 3500 nr nr nr nr nr nr2330 nr nr 840 1600 270 1200 440 420 nr nr nr nr nr nr

54 021 U 021 U 015 U 21 03 017 051 12 nr nr nr nr nr nr196 J 42 5 51 72 23 27 65 39 nr nr nr nr nr nr466 J nr nr 960 2800 U 880 2100 940 1000 nr nr nr nr nr nr95 45 U 47 U 22 53 15 094 067 17 nr nr nr nr nr nr24 09 U 093 U 67 6 U 1 U 19 1 U 1 U nr nr nr nr nr nr574 J nr nr 2200 9400 79 530 140 180 nr nr nr nr nr nr

2 U 021 U 018 U 094 34 04 U 043 U 044 U 091 nr nr nr nr nr nrnr U nr nr nr nr nr nr nr nr nr nr nr nr nr nr

435 nr nr 29 39 22 35 53 30 nr nr nr nr nr nr5300 117 267 690 380 220 230 220 280 nr nr nr nr nr nr

36 nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKgmgKgNot Reported 45 82 18 14 21 1810 14

Not Reported Not ReportedNot Reported Not Reported Not Reported Not ReportedNot ReportedVarious Various Various Various Various VariousVarious Various

Page 14 of 30

AR103747

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag039 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr

0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 0022 P 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr

nr nr nr nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 023 PD 019 P 0004 U 0047 P 027 D 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0018 J 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr011 J 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr

0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0095 P 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr016 J 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr

0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0066 J 0037 U 0038 U 018 U 0094 U 002 U 002 U 0022 U 0021 U nr nr nr nr nr nr

25 U 0074 U 0077 U 18 U 094 U 02 U 02 U 022 U 021 U nr nr nr nr nr nr048 U 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 7 U 7 U 350 U 25 D097 U 0037 U 0038 U 07 U 037 U 0081 U 0081 U 0085 U 0084 U 350 U 180 U 14 U 14 U 700 U 35 U048 U 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 7 U 7 U 350 U 18 U048 U 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 7 U 7 U 350 U 18 U63 J 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 71 U 7 U 350 U 18 U32 J 0074 U 0077 U 19 D 018 U 48 D 004 U 0042 U 62 D 4600 D 1300 DB 105 D 97 DB 4600 DB 76 DB64 J 0074 U 0077 U 068 PD 018 U 004 U 014 085 0041 U 175 U 88 U 7 U 7 U 350 U 18 U

447 258 48 014 085 62 4600 1300 105 97 4600 76

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg mgKg mgKg mgKg5 5 5 510 13 52 8231 21 20 5 517 17

1 and 5 1 and 10 5000 2500 200 200 10000 501 1 5 1 1 and 5 1 10 and 100EPA 80818082 EPA 80818082 8082 8082 8082 8082 8082 8082EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082EPA 80818082 EPA 80818082

Page 15 of 30

AR103748

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

G-0 0-2

012304

Sauer Dump Sauer DumpH-16 0-2

ENSAT012204

F-0 0-2Sauer Dump Sauer Dump

I-16 0-2

012704 012704ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid

Dup Of G-11 (0-2)Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial SoilENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT

061102 061102060702 061002 061102 061102 061102 061102060602 060602 0607022061027 2061033 2061018 20610202061017 2061036 2061012 2061019 2061021 2061034 2061022

D-4 (0-2) E-8II (0-2) H-10 (0-2) H-8 (0-2)F-7 (0-2) G-6 (0-2)G-11 (0-2) S-3 I-8 (0-2)F-1 (0-2) J-11 (0-2)Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr 2200 1200 1500 1900nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr

mgkgmgkg mgkgmgkg

EPA 7420 EPA 7420 EPA 7420EPA 7420

Page 19 of 30

AR103749

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

G-0 0-2

012304

Sauer Dump Sauer DumpH-16 0-2

ENSAT012204

F-0 0-2Sauer Dump Sauer Dump

I-16 0-2

012704 012704ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid

Dup Of G-11 (0-2)Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial SoilENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT

061102 061102060702 061002 061102 061102 061102 061102060602 060602 0607022061027 2061033 2061018 20610202061017 2061036 2061012 2061019 2061021 2061034 2061022

D-4 (0-2) E-8II (0-2) H-10 (0-2) H-8 (0-2)F-7 (0-2) G-6 (0-2)G-11 (0-2) S-3 I-8 (0-2)F-1 (0-2) J-11 (0-2)Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr51 D 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U18 U 280 U 18 U 18 U 35 U 70 U 70 U 14 U 70 U 350 U 70 U088 U 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U088 U 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U088 U 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U24 DB 1400 DB 32 D 35 DB 330 D 420 D 410 D 97 D 390 D 3800 DB 580 D088 U 140 U 27 D 51 18 U 35 U 35 U 7 U 35 U 180 U 35 U75 1400 59 86 330 420 410 97 390 3800 580

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKg6 5 5 5 5 5 55 55 5

25 4000 1000 500025 25 500 1000 1000 200 100080828082 8082 8082 8082 8082 8082 8082 80828082 8082

Page 20 of 30

AR103750

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpS3 (2004) G-075 0-2

Sauer Dump Sauer DumpK-15 0-2 K-16 0-2Z-05 0-2 I5-145 0-2 K-12 0-2

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

K-16 0-2 dup K-15 0-2 dupS1 (2004) S2 (2004)K-13 0-2 K-14 0-2

K-14 0-2 dup I5-70 0-2I5-07 0-2 J-115 0-2 K-08 0-2 K-09 0-2

J0 115 0-2

012704 012804 012804 012804 012804012804 012804 012804 012804 012904 012904012804 012904 012904 012904ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid

Duplicate Duplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nr

10000 5600 1900 3800 3200 3400 3600nr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkg mgkg mgkg mgkgmgkg mgkgmgkg

EPA 7420 EPA 7420 EPA 7420 EPA 7420EPA 7420 EPA 7420EPA 7420

Page 24 of 30

AR103751

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpS3 (2004) G-075 0-2

Sauer Dump Sauer DumpK-15 0-2 K-16 0-2Z-05 0-2 I5-145 0-2 K-12 0-2

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

K-16 0-2 dup K-15 0-2 dupS1 (2004) S2 (2004)K-13 0-2 K-14 0-2

K-14 0-2 dup I5-70 0-2I5-07 0-2 J-115 0-2 K-08 0-2 K-09 0-2

J0 115 0-2

012704 012804 012804 012804 012804012804 012804 012804 012804 012904 012904012804 012904 012904 012904ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid

Duplicate Duplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U85 U 84 U 39 U 83 U 82 U 85 U 76 U 80 U 12 U 31 U 170 U 120 U42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U60 620 270 580 500 490 540 470 92 210 970 43084 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U

684 620 270 580 500 490 540 470 92 210 970 430

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkgmgkg mgkg mgkg21 12 16 15 1419 2321 20 13 19 18

25 2000100 1000 500 1000 1 1001000 1000 1000 1000EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082

Page 25 of 30

AR103752

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer DumpSauer Dump Sauer DumpS4 (2004)

Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpS6 (2004)K-11 0-2 K-11 0-2 G-065 0-2 TP 3B lt1D5-07 0-2 F5-07 0-2K-10 0-2 K-10 0-2

J-115 0-2 dup G-075 0-2 dup

012904 012904 013004 013004 013004 020204012904 012904 012904 012904ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid SolidSolid Solid Solid Solid Solid SolidSolid Solid

DuplicateDuplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr 6600nr nr nr nr 28 Unr nr nr nr 12nr nr nr nr 99nr nr nr nr 28 Unr nr nr nr 53nr nr nr nr 55000nr nr nr nr 74nr nr nr nr nrnr nr nr nr nrnr nr nr nr 68nr nr nr nr 420nr nr nr nr 53000

1600 1600 540 540 400nr nr nr nr 6900nr nr nr nr 410nr nr nr nr 064nr nr nr nr 51nr nr nr nr 570 Unr nr nr nr 68nr nr nr nr 28 Unr nr nr nr 570 Unr nr nr nr 23 Unr nr nr nr nrnr nr nr nr 25nr nr nr nr 1500nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkgmgkg mgkg mgkg mgkg

EPA 7420 EPA 7420 EPA 6020EPA 7420 EPA 7420

Page 29 of 30

AR103753

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer DumpS4 (2004)

Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpS6 (2004)K-11 0-2 K-11 0-2 G-065 0-2 TP 3B lt1D5-07 0-2 F5-07 0-2K-10 0-2 K-10 0-2

J-115 0-2 dup G-075 0-2 dup

012904 012904 013004 013004 013004 020204012904 012904 012904 012904ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid SolidSolid Solid Solid Solid Solid SolidSolid Solid

DuplicateDuplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U62 U 17 U 180 U 81 U 13 U 24 U 25 U 057 U31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U270 150 1500 64 64 160 180 1231 U 84 U 88 U 4 14 12 U 12 U 057 U

270 150 1500 68 78 160 180 12

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg25 17 2019 23 1621

2000 100 2050 200 10 20EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082

Page 30 of 30

AR103754

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SolidSurface Soil

Malcolm Pirnie010807

C7A110281001DG-SS01-0

Sauer DumpL-09 0-2

Sauer Dump Sauer DumpL-07 0-2 L-08 0-2

L-9 0-2 L-09 0-2 dup

Sauer DumpY-055 0-2

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpK-17 0-2 L-10 0-2 L-11 0-2

Sauer Dump Sauer Dump Sauer Dump

020205ENSAT

Sauer Dump Sauer DumpL-12 0-2 L-13 0-2 L-14 0-2 L-15 0-2

Sauer Dump Sauer DumpL-17 0-2

Surficial SoilSolid

M-08 0-2S-5-2005L-16 0-2

020705 020705 020705 020705020405 020705 020705 020705 020705 020805 020805 020905 020905ENSAT ENSAT

030905ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilENSAT ENSATENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid

Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid

Duplicate

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result FlagAluminum nrAntimony nrArsenic nrBarium nrBeryllium nrCadmium nrCalcium nrChromium nrChromium III nrChromium VI nrCobalt nrCopper nrIron nrLead 732Magnesium nrManganese nrMercury nrNickel nrPotassium nrSelenium nrSilver nrSodium nrThallium nrTin nrVanadium nrZinc nrCyanide nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

mgkgnot reported

1SW846 6010B

Page 4 of 15

AR103755

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SolidSurface Soil

Malcolm Pirnie010807

C7A110281001DG-SS01-0

Sauer DumpL-09 0-2

Sauer Dump Sauer DumpL-07 0-2 L-08 0-2

L-9 0-2 L-09 0-2 dup

Sauer DumpY-055 0-2

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpK-17 0-2 L-10 0-2 L-11 0-2

Sauer Dump Sauer Dump Sauer Dump

020205ENSAT

Sauer Dump Sauer DumpL-12 0-2 L-13 0-2 L-14 0-2 L-15 0-2

Sauer Dump Sauer DumpL-17 0-2

Surficial SoilSolid

M-08 0-2S-5-2005L-16 0-2

020705 020705 020705 020705020405 020705 020705 020705 020705 020805 020805 020905 020905ENSAT ENSAT

030905ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilENSAT ENSATENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid

Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid

Duplicate

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrbeta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrdelta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-BHC (Lindane) nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChlordane total nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDD nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDE nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDT nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDieldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan I nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan II nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan sulfate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin aldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin ketone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor epoxide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethoxychlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToxaphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAroclor-1016 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1221 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1232 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1242 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 05 038 013 U 57 U 041 U 0041 UAroclor-1248 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1254 23 29 1 U 12 U 064 U 20 084 13 37 18 U 096 049 036 88 041 U 1Aroclor-1260 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 04 031 029 21 041 U 062Total PCBs 23 29 ND ND ND 20 084 13 37 ND 186 118 065 109 ND 162

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

mgkgnot reported

1SW846 8082EPA 8082

mgkg18

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 80821 1 1

EPA 8082 EPA 8082100

EPA 8082 EPA 8082

18 77 80 62 86 6066 34 64 47mgkg mgkg mgkg mgkgmgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg

41 41mgkg mgkg

61 75

Page 5 of 15

AR103756

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid SolidSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie010807 010807 010807 010807 010807 010807 010807010807 010807 010807 010807 010807 010807 010807010807 010807

C7A110281009 C7A110281010 C7A130135004 C7A110281011 C7A130135005 C7A130135006 C7A130135007C7A130135001 C7A110281002 C7A110281003 C7A110281005 C7A110281006 C7A130135003 C7A110281007C7A130135002 C7A110281004DG-SS17-0DG-SS09-0 DG-SS10-0 DG-SS11-0 DG-SS12-0 DG-SS13-0 DG-SS14-0 DG-SS15-0 DG-SS16-0DG-SS05-0 DG-SS06-0 DG-SS07-0 DG-SS08-0DG-SS02-0 DG-SS03-0 DG-SS04-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

260 J 661 321 269 J 295 153 269 116 J 699 556 106 647 J 558 170 J 440 J 198 Jnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkgnot reported not reported not reported not reported not reported not reported not reportednot reported not reported not reported not reported not reported not reported not reportednot reported not reported

1 1 11 1 1 1 1 1 1 11 1 1 1 5SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B

Page 9 of 15

AR103757

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid SolidSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie010807 010807 010807 010807 010807 010807 010807010807 010807 010807 010807 010807 010807 010807010807 010807

C7A110281009 C7A110281010 C7A130135004 C7A110281011 C7A130135005 C7A130135006 C7A130135007C7A130135001 C7A110281002 C7A110281003 C7A110281005 C7A110281006 C7A130135003 C7A110281007C7A130135002 C7A110281004DG-SS17-0DG-SS09-0 DG-SS10-0 DG-SS11-0 DG-SS12-0 DG-SS13-0 DG-SS14-0 DG-SS15-0 DG-SS16-0DG-SS05-0 DG-SS06-0 DG-SS07-0 DG-SS08-0DG-SS02-0 DG-SS03-0 DG-SS04-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 0097 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U059 77 14 0043 U 062 072 065 0052 U 0012 J 00068 J 012 0045 U 0084 0046 U 14 0055 U074 041 U 072 12 038 036 037 028 0019 J 00083 J 022 0085 0054 042 26 049133 77 212 12 1 108 1117 028 0031 00151 034 0085 0138 042 40 049

mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkgnot reported not reported not reportednot reported not reported not reported not reported not reported not reported not reported not reportednot reported not reported not reported not reported not reported

1 1 1 1 1 3 11 10 1 1 1 1 11 1SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

Page 10 of 15

AR103758

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid SolidSolid SolidSolid Solid Solid SolidSolid Solid SolidSolid SolidSolid SolidSurface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie010807 010807 010807 010807010807 010807010807 010807 010807 010807 010807 010807 010807 010807010807

C7A240133004 C7A240133006 C7A250145001 C7A250145002C7A240133007 C7A240133008C7A130135010 C7A130135011 C7A130135012 C7A130135013 C7A130135014 C7A240133001 C7A240133002 C7A240133003C7A130135008DG-SS27-0 DG-SS28-0DG-SS21-0 DG-SS22-0 DG-SS23-0 DG-SS24-0 DG-SS25-0 DG-SS26-0DG-SS18-0 DG-SS29-0 DG-SS30-0 DG-SS31-0 DG-SS32-0DG-SS19-0 DG-SS20-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

363 J 114 J 130 J 324 J 140 J 205 J 2720 415 188 586 242 281 221 137 804nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkgmgkg mgkgnot reported not reportednot reported not reported not reported not reported not reported not reported not reported not reportednot reported not reportednot reported not reportednot reported

1 11 11 1 1 51 1 11 11 1SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B

Page 14 of 15

AR103759

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid SolidSolid SolidSolid Solid Solid SolidSolid Solid SolidSolid SolidSolid SolidSurface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie010807 010807 010807 010807010807 010807010807 010807 010807 010807 010807 010807 010807 010807010807

C7A240133004 C7A240133006 C7A250145001 C7A250145002C7A240133007 C7A240133008C7A130135010 C7A130135011 C7A130135012 C7A130135013 C7A130135014 C7A240133001 C7A240133002 C7A240133003C7A130135008DG-SS27-0 DG-SS28-0DG-SS21-0 DG-SS22-0 DG-SS23-0 DG-SS24-0 DG-SS25-0 DG-SS26-0DG-SS18-0 DG-SS29-0 DG-SS30-0 DG-SS31-0 DG-SS32-0DG-SS19-0 DG-SS20-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U091 0037 U 0043 U 0056 U 0059 U 0051 J 48 0091 0052 U 0037 U 014 0046 U 0041 U 0042 U 0044 U15 0041 0036 J 026 014 012 48 U 0058 U 0052 U 0037 UJ 0038 U 0015 J 0041 U 0028 J 0037 J

241 0041 0036 026 014 0171 48 0091 0052 0037 014 0015 0041 0028 0037

mgkg mgkgmgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkgmgkgnot reported not reportednot reported not reportednot reported not reported not reported not reportednot reported not reported not reportednot reported not reportednot reported not reported

1 1 1 11 11 1 1 1 1 100 1 11SW846 8082 SW846 8082SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082SW846 8082 SW846 8082

Page 15 of 15

AR103760

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0012 B 0045 B 05006 U 0341 U 0058 0048 0025 0019 U 0013 U 0054 017 006 0033 0024Acetonitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0002 J 0014 U 0006 J 0003 JBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr 082 J nrBenzyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromobenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UBromoform 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UBromomethaneMethyl bromide 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 02228 01452 0014 U 0012 U 0007 J 0019 U 0013 U 0014 0066 0021 0011 J 0006 Jn-Butylbenzene nr nr 01001 U 00682 U 0012 00061 U nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr 0065 J nr nr nrCarbon Disulfide 0005 U 0005 U nr nr 00032 J 00061 U 0014 U 0019 U 0013 U 0002 J 0031 0004 J 0009 J 0013 UCarbon Tetrachloride 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChlorobenzene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChloroethaneEthyl chloride 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0001 J 0019 U 0014 U 0013 U 0013 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 01001 U 00682 U nr nr nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChloromethaneMethyl chloride 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChloroprene nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr 0002 J 0019 U 0013 U 0002 J 0019 U 0014 U 0013 U 0013 UCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr 12 J nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr 0085 J nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dibromoethane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U13-Dichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U14-Dichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UDichlorodifluoromethane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U11-Dichloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dichloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U11-Dichloroethene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 Ucis-12-Dichloroethene nr nr nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0001 J 0019 U 0014 U 0013 U 0013 Utrans-12-Dichloroethene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dichloroethene (Total) nr nr nr nr nr nr nr nr nr nr nr nr nr nrDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U13-Dichloropropane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr22-Dichloropropane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 Utrans-13-Dichloropropene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr 0069 J nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr 0099 J nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr 0048 J nr 037 J nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr nr

1123104

EPA 8260 EPA 8260

Subsurface SoilENSAT121201

82073 000006

yesyesyes

Solid

nonoyesno

yesyesnoyes

ENSATSubsurface Soil

Solid

yes

1123105

82073 000007

121201

noyesyesyes

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

mgKg133

1not reported

noyes

noyes

noyesyesyes

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

mgKg163

1not reported

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

yesyesyesnoyesno

EPA 8260Not Reported

NAmgKg

Holding time exceeded

MDE

noyesyesyes

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Holding time exceededmgKg

Not ReportedEPA 8260

noyes

Subsurface Soil

yesyesyesyes

yesyes

SolidSubsurface Soil

noyesnono

yesno

ENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12

yesnonononono

EPA 82601

18mgKgmgKg

291

EPA 8260

nononononoyes

Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

EPA 82601

51mgKgmgKg

291

EPA 8260

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolid

yesyesyesnoyesno

EPA 82601

22mgKgmgKg

441

EPA 8260

noyesnoyesyesyes

SolidSubsurface Soil

ENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolid

yesyesyes

yesno

no

EPA 82601 and 17

19mgKgmgKg

191

EPA 8260

noyesnoyesyesyes

SolidSubsurface Soil

ENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

123

mgKg mgKg191

Page 1 of 40

AR103761

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr 0019 J nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0009 J 0019 U 0013 U 0012 U 0019 U 0014 U 0027 0013 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr 15 J nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr 0008 J nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr 11 J nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr 0027 J nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr 0032 J nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr 001 J nr nr nr nr nr nr2-Hexanone 001 U 001 U nr nr 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nr nr nr nr nr nrIsopropylbenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 035 D 0049 0014 U 0013 U 0013 Up-Isopropyl Toluene nr nr 01001 U 00682 U 0005 J 00061 U nr nr nr nr nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UMethylcyclohexane nr nr nr nr nr nr 0002 J 0019 U 0013 U 0006 J 0006 J 0014 U 0004 J 0013 U1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr 0008 J nr nr 054 J nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr 0014 J nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr 11 J 0007 JMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 0005 U 00061 B 0103 00682 U 0007 U 00061 U 0003 JB 0002 JB 0002 JB 0003 JB 0006 JB 0004 JB 0005 JB 0002 JB1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr 045 J nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr 0033 J nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr 038 J nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0002 J 0015 J 0014 U 0013 U 0013 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UNaphthalene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr 0008 JNaphthalene decahydro- trans- nr nr nr nr nr nr 0008 J nr nr 0008 J nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr 0007 J nr nr nr nrStyrene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0002 J 0019 U 0013 U 0012 U 0019 U 0014 U 0003 J 0013 U1112-Tetrachloroethane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UTetrachloroethene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0004 J 0001 J 0012 U 0019 U 0014 U 0013 U 0013 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr 0035 J nr nr nrToluene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0002 J 0019 U 0013 U 0012 U 0005 J 0014 U 0014 0013 U123-Trichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U111-Trichloroethane 0022 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U112-Trichloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UTrichloroethene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0002 J 0012 U 0019 U 0014 U 0013 U 0013 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UTrichlorofluoromethane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U123-Trichloropropane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr 0021 J nr nr nr 001 J123-Trimethylbenzene nr nr 01001 U 00682 U 00065 J 00061 U nr nr nr 0009 J nr nr nr nr135-Trimethylbenzene nr nr 01001 U 03444 0003 J 00061 U 0015 J nr nr nr nr nr 28 J nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U nr nr nr nr nr nr nr nr nr nr nr nrVinyl chloride 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U m+p-Xylenes nr nr nr nr 0007 U 00061 U nr nr nr nr nr nr nr nro-Xylene nr nr nr nr 0007 U 00061 U nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 02003 U 01364 U nr nr 0006 J 0019 U 0013 U 0012 U 0015 J 0014 U 0189 0013 U

not reported not reported EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 82601 1 Not Reported Not Reported 1 1 1 1 1 1 and 17 1 1 1 1

133 163 NA 29 18 29 51 19 19 44 22 23 19mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Holding time exceeded Holding time exceeded

Page 2 of 40

AR103762

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 22 U 22 U U U nr nr 035 J 018 J 013 J 041 U 059 U 042 U 043 U 041 UAcenaphthylene 22 U 22 U U U nr nr 021 J 067 U 041 U 041 U 059 U 042 U 043 U 041 UAcetophenone nr nr U U nr nr 018 J 067 U 041 U 0084 J 009 J 042 U 046 0073 JAnthracene 22 U 22 U 10519 J U nr nr 064 041 J 021 J 0082 J 059 U 042 U 043 U 006 JAtrazine nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzaldehyde nr nr U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UBenzo(a)Anthracene 22 U 22 U 7323 J U nr nr 34 15 099 032 J 061 0044 J 031 J 02 JBenzo(a)Pyrene 22 U 22 U 7246 J U nr nr 37 13 082 035 J 038 J 042 U 02 J 021 JBenzo(b)fluoranthene 12 J 22 U J U nr nr 33 17 091 031 J 053 J 0047 J 022 J 024 JBenzo(ghi)Perylene 22 U 22 U U U nr nr 23 13 083 041 U 059 U 042 U 012 J 024 JBenzo(k)fluoranthene 22 U 22 U U U nr nr 27 097 073 021 J 036 J 0051 J 023 J 014 JBenzylbutylphthalateButylbenzylphthalate 22 U 22 U U U nr nr 39 D 42 041 U 016 J 059 U 0082 J 043 U 041 U11-Biphenyl nr nr U U nr nr 0099 J 067 U 0058 J 041 U 059 U 042 U 043 U 014 J4-Bromophenyl-phenylether 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UCaprolactam nr nr U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UCarbazole nr nr U U nr nr 037 J 067 U 013 J 041 U 059 U 042 U 043 U 041 U4-Chloroaniline 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Chloroethoxy)Methane 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Chloroethyl)Ether 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Chloroisopropyl)Ether 22 U 22 U nr nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Chloronaphthalene 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Chlorophenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U4-Chlorophenyl-phenylether 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UChrysene 22 U 22 U U U nr nr 41 DJ 16 11 042 064 0056 J 036 J 022 JDibenzo(ah)Anthracene 22 U 22 U U U nr nr 15 038 J 025 J 016 J 059 U 042 U 043 U 041 UDibenzofuran 22 U 22 U U U nr nr 022 J 013 J 017 J 041 U 059 U 042 U 043 U 007 J12-Dichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr33-Dichlorobenzidine 46 U 46 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U24-Dichlorophenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UDiethylphthalate 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U24-Dimethylphenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UDimethyl Phthalate 22 U 22 U U U nr nr 046 U 067 U 056 041 U 059 U 042 U 043 U 22Di-n-Butylphthalate 96 17 JB U U nr nr 067 067 U 026 J 0074 J 0081 J 042 U 0064 J 015 J46-Dinitro-2-Methylphenol 112 U 114 U U U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U24-Dinitrophenol 112 U 114 U U U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U24-Dinitrotoluene 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U26-Dinitrotoluene 22 U 22 U J J nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UDi-n-Octyl Phthalate 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Ethylhexyl)Phthalate 22 U 22 U J U nr nr 20 D 35 19 043 45 042 U 1 069Fluoranthene 22 U 22 U 13183 J U nr nr 64 D 25 15 044 079 0063 J 062 029 JFluorene 22 U 22 U J U nr nr 043 J 017 J 015 J 041 U 059 U 042 U 082 0062 JHexachlorobenzene 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UHexachlorobutadiene 22 U 22 U J nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UHexachlorocyclopentadiene 22 U 22 U J nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UHexachloroethane 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UIndeno(123-cd)Pyrene 22 U 22 U J U nr nr 4 DJ 16 09 04 J 03 J 042 U 015 J 025 JIsophorone 22 U 22 U J U nr nr 011 J 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Methylnaphthalene 22 U 22 U J U nr nr 033 J 02 J 02 J 017 J 013 J 042 U 22 172-Methylphenol 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 013 J4-Methylphenol 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 01 J 042 U 043 U 023 JMethylMercury nr nr J U nr nr nr nr nr nr nr nr nr nrNaphthalene 22 U 22 U J U nr nr 028 J 018 J 024 J 012 J 013 J 042 U 032 J 112-Nitroaniline 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U3-Nitroaniline 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U4-Nitroaniline 112 U 114 U J nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 UNitrobenzene 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Nitrophenol 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U4-Nitrophenol 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 UN-Nitroso-Di-n-Propylamine 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UN-Nitrosodiphenylamine 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U22-Oxybis(1-Chloropropane) nr nr J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UPentachlorophenol 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 UPhenanthrene 22 U 22 U 10215 J U nr nr 49 D 17 099 034 J 063 042 U 21 038 JPhenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 05Pyrene 091 J 076 J nr nr 93 D 27 21 062 1 0069 J 18 04 J124-Trichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr245-Trichlorophenol 112 U 114 U U J nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U246-Trichlorophenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U

Incomplete lab report No SVOCs detected

Incomplete lab report No other SVOCs detected

mgKgmgKgmgKgmgKg29

1 amp 105Not reported

mgKg mgKgNot Reported

EPA 625EPA 625

Not ReportedmgKgmgKg

Not Reported5 1

19191

EPA 8070EPA 80701

51

EPA 8070 EPA 80701

22

EPA 8070EPA 8070

mgKgmgKg441

EPA 80701

19mgKgmgKg

231

EPA 8070

Page 3 of 40

AR103763

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 9850 14030 15719 8105 nr nr 16000 49000 12000 9900 17000 9900 8500 2300Antimony 29 U 29 U 711 944 nr nr 90 63 10 U 12 U 80 U 22 48 10 UArsenic 255 J 113 J 3574 11788 nr nr 43 300 16 65 11 62 25 5 UBarium 217 221 234 738 nr nr 800 800 190 580 140 82 100 26Beryllium 3 U 3 U 25 U 25 U nr nr 14 1 14 14 16 058 073 039Cadmium 379 301 228 215 nr nr 14 19 44 14 28 12 16 05 UCalcium 63550 86300 32542 26434 nr nr 28000 25000 22000 21000 190000 5100 37000 2000Chromium 266 251 3803 215 nr nr 450 1300 66 650 67 27 120 33Chromium III nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 28 U 26 U 497 123 nr nr 30 21 7 18 8 46 13 12Copper 364 160 2894 1300 nr nr 3300 3200 350 280 150 390 190 19Iron 25480 15660 84124 58149 nr nr 140000 95000 36000 36000 30000 14000 84000 9100Lead 508 J 222 J 831 2283 nr nr 3000 4100 420 940 430 210 110 40Magnesium 11910 19410 17207 5350 nr nr 9700 8100 7100 8100 83000 2200 5200 840Manganese 699 J 596 J 4898 609 nr nr 2500 1500 620 380 520 160 8900 150Mercury 032 016 117 183 nr nr 14 22 01 U 009 U 018 U 01 U 021 018Nickel 22 U 20 U 7229 237 nr nr 230 510 49 25 U 37 44 160 16Potassium 1630 J 1600 J 818 809 nr nr 570 U 700 880 6200 U 4100 U 700 2100 500 USelenium 3 U 3 U 364 125 U nr nr 22 57 75 3 05 U 13 46 05 USilver 6 U 5 U 25 U 25 U nr nr 1 U 27 1 U 12 U 8 U 1 U 1 U 1 USodium 2800 U 2660 2028 3585 nr nr 610 410 160 625 U 400 U 190 840 160Thallium 5 U 5 U 125 U 125 U nr nr 094 17 056 U 058 U 065 U 095 29 04 UTin 22 U 20 U nr nr nr nr nr nr nr nr nr nr nr nrVanadium 28 U 26 U 91 236 nr nr 55 980 30 46 46 18 1 U 28Zinc 545 458 1584 1922 nr nr 6400 5400 1000 110000 540 880 370 58Cyanide 12 U 13 U 0187 U 0127 U nr nr nr nr nr nr nr nr nr nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Not ReportedNot Reported

mgKgmgKgNot ReportedNot ReportedNot Reported

194mgKgmgKg

172Not Reported

VariousNot Reported

23mgKgmgKg

54Not Reported

VariousVariousNot Reported

20mgKgmgKg

20Not Reported

VariousVariousNot Reported

37mgKgmgKg

31Not Reported

Various VariousNot Reported

20mgKgmgKg

25Not Reported

Various

Page 4 of 40

AR103764

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ualpha-BHC 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ubeta-BHC 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Udelta-BHC 0038 U 0039 U 05 U 05 U 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ugamma-BHC (Lindane) 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ualpha-Chlordane nr nr nr nr nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ugamma-Chlordane nr nr nr nr nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UChlordane total 038 U 039 U 025 U 025 U nr nr nr nr nr nr nr nr nr nr44-DDD 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 U44-DDE 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 U44-DDT 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 096 PD 00042 U 00041 UDieldrin 0076 U 0085 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndosulfan I 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UEndosulfan II 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndosulfan sulfate 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndrin 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndrin aldehyde 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndrin ketone 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UHeptachlor 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UHeptachlor epoxide 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UMethoxychlor 0076 U 0078 U 05 U 05 U nr nr 024 U 0035 U 42 U 0021 U 003 U 011 U 0022 U 0021 UToxaphene 076 U 078 U 25 U 25 U nr nr 24 U 035 U 42 U 021 U 03 U 11 U 022 U 021 UAroclor-1016 038 U 039 U 025 U 025 U nr nr 046 U 0067 U 81 U 0041 U 0059 U 021 U 0042 U 0041 UAroclor-1221 038 U 039 U 025 U 025 U nr nr 094 U 014 U 17 U 0083 U 012 U 043 U 0086 U 0083 UAroclor-1232 038 U 039 U 025 U 025 U nr nr 046 U 0067 U 81 U 0041 U 0059 U 021 U 0042 U 0041 UAroclor-1242 038 U 039 U 025 U 025 U nr nr 046 U 0067 U 81 U 0041 U 0059 U 021 U 88 D 0041 UAroclor-1248 038 U 039 U nr nr nr nr 046 U 0067 U 81 U 31 PD 21 PD 17 PD 91 D 13 DAroclor-1254 1452 2056 177 J 79 nr nr 72 D 84 D 800 D 56 PD 37 D 021 U 0042 U 1 PAroclor-1260 076 U 078 U 1113 J 025 U nr nr 43 D 0067 U 81 U 0041 U 0059 U 26 PD 0042 U 0041 UTotal PCBs 1452 2056 2883 79 115 84 800 87 58 43 179 23

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 8081Not ReportedNot Reported

mgKgmgKgNot ReportedNot Reported

EPA 808110

Not ReportedmgKgmgKg

Not Reported10

EPA 808180825 and 40

22mgKgmgKg

441 and 5

EPA 808180821 and 40

19mgKg

EPA 80818082

mgKg19

200 and 600EPA 80818082EPA 80818082

1 and 4051

mgKgmgKg29

10 and 100EPA 80818082 EPA 80818082

1 and 219

mgKgmgKg22

1 and 20EPA 80818082

Page 5 of 40

AR103765

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0028 0086 0021 0015 U 0048 0015 0022 J nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 J 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0007 J 0025 J 0014 U 0015 U 0013 J 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0004 J 0017 J 0014 U 0015 U 0024 J 0015 U 0018 J nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr 012 nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0002 J 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr0011 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr0018 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 8260

yesyes

yesnoyesno

yesno

EPA 8260

1123107

Subsurface SoilENSAT121201

82073 000009

yesyes

Dup Of TP-7Solid

noyesnoyes

yesyes

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump

118

mgKg mgKg691

Sauer DumpMW-3 (135-15)

122001ENSAT

yesno

EPA 82601

32mgKgmgKg

591

EPA 8260

noyesnoyesyesyes

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolid

yesyesyesnoyesno

EPA 82601

35mgKgmgKg

301

EPA 8260

noyesnoyesyesyes

SolidSubsurface Soil

ENSAT121901

MW-4 (11-12)Sauer Dump

mgKg621

EPA 8260

Sauer DumpI-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnononono

SolidSubsurface Soil

ENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnoyesyesyes

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnononono

SolidSubsurface Soil

ENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnono

nono

SolidSubsurface Soil

ENSAT0606022061009

noyesnononono

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Page 6 of 40

AR103766

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0002 J 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0005 J 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0006 J 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0003 JB 0032 U 0014 U 0068 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0007 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr 011 nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0001 J 0032 U 0014 U 0015 U 0001 J 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0013 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0003 J 0014 U 0015 U 0006 J 0015 U 0026 U nr nr nr nr nr nr nr nr

EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 82601 1 1 1 1 1 1

18 69 30 35 59 32 62mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Page 7 of 40

AR103767

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag04 U 017 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0042 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 013 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0095 J 11 U 047 U 019 J 015 J 049 U 087 U nr nr nr nr nr nr nr nr0065 J 11 U 047 U 017 J 011 J 049 U 087 U nr nr nr nr nr nr nr nr0089 J 11 U 047 U 02 J 014 J 049 U 087 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr0067 J 11 U 047 U 015 J 011 J 049 U 087 U nr nr nr nr nr nr nr nr0057 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr0096 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr01 J 11 U 047 U 023 J 019 J 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0053 J 015 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0066 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr22 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr007 J 11 U 047 U 012 JB 097 U 01 JB 043 JB nr nr nr nr nr nr nr nr

1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr046 036 JB 0058 JB 13 B 16 B 025 JB 29 B nr nr nr nr nr nr nr nr019 J 032 J 047 U 039 J 032 J 049 U 087 U nr nr nr nr nr nr nr nr

0051 J 016 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 011 J 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr12 043 J 047 U 022 J 097 U 049 U 087 U nr nr nr nr nr nr nr nr009 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr02 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr06 029 J 047 U 014 J 097 U 049 U 087 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

026 J 052 J 047 U 025 J 017 J 049 U 087 U nr nr nr nr nr nr nr nr027 J 11 U 047 U 12 097 U 049 U 087 U nr nr nr nr nr nr nr nr021 J 024 J 047 U 047 J 031 J 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

EPA 80701

58mgKgmgKg

301

EPA 8070EPA 80701

69mgKgmgKg

181

EPA 8070

mgKg581

EPA 8070EPA 80701

32mgKgmgKg

661

EPA 8070

Page 8 of 40

AR103768

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag2500 33000 24000 13000 28000 28000 40000 nr nr nr nr nr nr nr nr

10 U 30 U 10 U 10 U 20 U 10 U 20 U nr nr nr nr nr nr nr nr5 U 12 47 26 11 14 56 nr nr nr nr nr nr nr nr

40 81 34 32 120 79 91 nr nr nr nr nr nr nr nr035 21 1 15 31 12 38 nr nr nr nr nr nr nr nr06 024 006 U 01 16 0084 069 nr nr nr nr nr nr nr nr

2500 3300 240 410 21000 540 3100 nr nr nr nr nr nr nr nr27 40 30 14 160 36 53 nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr21 39 35 46 18 44 17 nr nr nr nr nr nr nr nr33 23 13 53 310 29 29 nr nr nr nr nr nr nr nr

11000 52000 17000 13000 38000 29000 40000 nr nr nr nr nr nr nr nr57 33 10 22 260 36 40 nr nr nr nr nr nr nr nr950 6400 1800 1500 7900 3000 8000 nr nr nr nr nr nr nr nr170 450 38 100 560 70 870 nr nr nr nr nr nr nr nr009 U 022 U 009 U 01 U 2 01 U 073 nr nr nr nr nr nr nr nr20 64 96 81 51 16 36 nr nr nr nr nr nr nr nr400 U 5800 1800 1400 3800 3100 7300 nr nr nr nr nr nr nr nr05 U 22 08 07 62 06 42 nr nr nr nr nr nr nr nr1 U 3 U 1 U 1 U 2 U 1 U 12 nr nr nr nr nr nr nr nr

160 3300 190 500 2800 710 2700 nr nr nr nr nr nr nr nr05 U 054 U 023 U 02 U 038 U 022 U 04 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr42 70 44 20 64 42 64 nr nr nr nr nr nr nr nr110 130 26 22 490 54 130 nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 2008Not Reported

22mgKgmgKg

17Not Reported

EPA 2008EPA 2008Not Reported

67mgKgmgKg

19Not Reported

Various

mgKg55

Not ReportedEPA 2008EPA 2008

Not Reported20

mgKgmgKg61

Not ReportedEPA 2008

Page 9 of 40

AR103769

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr0021 U 0055 U 0024 U 004 U 005 U 0025 U 0045 U nr nr nr nr nr nr nr nr021 U 055 U 024 U 04 U 05 U 025 U 045 U nr nr nr nr nr nr nr nr004 U 011 U 0047 U 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U

0082 U 022 U 0096 U 016 U 02 U 0099 U 018 U 07 U 140 U 35 U 35 U 28 U 35 U 56 U 7 U004 U 011 U 0047 U 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U004 U 011 U 019 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U08 011 U 0047 U 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U084 P 011 U 0047 U 0079 U 06 0049 U 011 12 D 1500 D 240 D 400 D 160 DB 13 D 320 DB 32 DB031 P 011 U 0047 U 032 P 045 P 0049 U 0087 U 24 D 70 U 18 U 18 U 14 U 59 D 28 U 91 D195 019 032 105 011 36 1500 240 400 160 189 320 411

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 808180821

58mgKgmgKg

301

EPA 80818082EPA 808180821

69mgKgmgKg

181

EPA 80818082 8082500

5mgKgmgKg

5200080828082

105

mgKgmgKg621

EPA 80818082EPA 808180821

32mgKgmgKg

661

EPA 80818082

mgKg5

10080828082

8005

mgKgmgKg5

5080828082

4005

mgKgmgKg5

5008082

Page 10 of 40

AR103770

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSATENSAT ENSAT ENSAT ENSAT012304 012304012204 012204 012304 012304

I-0 4-6 Z-06 2-4 Z-06 4-6 Z-06 6-8

012204

Sauer Dump Sauer Dump

Solid

Sauer Dump Sauer DumpF-0 2-4 H-0 2-4

Sauer Dump Sauer Dump

ENSATSubsurface Soil

Sauer DumpE5-07 6-8

Sauer DumpG-6 (4-5)

2061035061102ENSAT

Subsurface SoilSolidSolid

Sauer DumpE-8II (2-4)

Subsurface SoilENSAT06110220610152061023

061102ENSAT

Subsurface SoilSolid

Sauer DumpG-8 (2-4)G-7 (4-6)

Sauer DumpSauer DumpG-7 (2-4)F-7 (4-6)

Sauer Dump

2061026061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06110220610082061010

061102ENSAT

SolidSubsurface Soil

SolidSubsurface Soil

ENSAT0611022061007

G-6 (4-7)Sauer Dump

SolidSubsurface Soil

ENSAT0611022061032

I-7 (6-8)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr 1500 670 1600 960 23000 2400nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr

EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

Page 14 of 40

AR103771

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSATENSAT ENSAT ENSAT ENSAT012304 012304012204 012204 012304 012304

I-0 4-6 Z-06 2-4 Z-06 4-6 Z-06 6-8

012204

Sauer Dump Sauer Dump

Solid

Sauer Dump Sauer DumpF-0 2-4 H-0 2-4

Sauer Dump Sauer Dump

ENSATSubsurface Soil

Sauer DumpE5-07 6-8

Sauer DumpG-6 (4-5)

2061035061102ENSAT

Subsurface SoilSolidSolid

Sauer DumpE-8II (2-4)

Subsurface SoilENSAT06110220610152061023

061102ENSAT

Subsurface SoilSolid

Sauer DumpG-8 (2-4)G-7 (4-6)

Sauer DumpSauer DumpG-7 (2-4)F-7 (4-6)

Sauer Dump

2061026061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06110220610082061010

061102ENSAT

SolidSubsurface Soil

SolidSubsurface Soil

ENSAT0611022061007

G-6 (4-7)Sauer Dump

SolidSubsurface Soil

ENSAT0611022061032

I-7 (6-8)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr28 U 35 U 1800 U 180 U 18 U 7 U 14 U 2000 D 0039 U 8 U 20 U 78 U56 U 7 U 3500 U 350 U 35 U 14 U 28 U 280 U 008 U 16 U 40 U 16 U28 U 35 U 1800 U 180 U 18 U 7 U 14 U 140 U 0039 U 8 U 20 U 78 U28 U 35 U 1800 U 180 U 18 U 7 U 14 U 140 U 036 8 U 160 78 U28 U 35 U 1800 U 180 U 18 U 7 U 14 U 140 U 0039 U 8 U 20 U 78 U310 D 39 D 33000 DB 3900 D 370 D 100 D 190 DB 670 DB 067 110 110 11028 U 12 D 1800 U 180 U 18 U 7 U 14 U 140 U 035 8 U 20 U 78 U

310 51 33000 3900 370 100 190 2670 138 110 270 110

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

8082800

5mgKg

8082400

5mgKgmgKg

5200

80828082500

5mgKgmgKg

5500080828082

500005

mgKgmgKg5

1008082

mgkg18200

EPA 8082EPA 80821

16mgkgmgKg

540008082 EPA 8082

20015

mgkgmgkg17500

EPA 8082

Page 15 of 40

AR103772

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateDuplicate DuplicateSolidSolid Solid Solid Solid Solid SolidSolid SolidSolid Solid Solid Solid Solid Solid

Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804012304 012704 012704 012704 012804 012804012704 012704012704 012704 012704 012704 012704 012704

K-16 4-6 dup I5-145 2-4 dup K-12 2-4 dupBackground 000047 Background 000048 Background 000049I-16 4-6 I-16 6-8 Z-03 6-8 Z-03 8-10 Z-05 6-8 Z-07 6-8Z-04 8-10 Z-05 2-4Z-06 8-10 H-16 6-8 Z-07 8-10 Z-08 6-8

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

4000 740 700 1600 1200 2700 3200 1100 1900 3900 700 27000 4600 23000nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420 EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

Page 19 of 40

AR103773

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateDuplicate DuplicateSolidSolid Solid Solid Solid Solid SolidSolid SolidSolid Solid Solid Solid Solid Solid

Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804012304 012704 012704 012704 012804 012804012704 012704012704 012704 012704 012704 012704 012704

K-16 4-6 dup I5-145 2-4 dup K-12 2-4 dupBackground 000047 Background 000048 Background 000049I-16 4-6 I-16 6-8 Z-03 6-8 Z-03 8-10 Z-05 6-8 Z-07 6-8Z-04 8-10 Z-05 2-4Z-06 8-10 H-16 6-8 Z-07 8-10 Z-08 6-8

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flagnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nr

092 U 19 U 81 U19 U 39 U 17 U092 U 19 U 81 U092 U 19 U 81 U092 U 19 U 81 U93 19 87092 U 19 U 81 U93 19 87

mgkg2820

EPA 8082 EPA 808220019

mgkgmgkg1450

EPA 8082

Page 20 of 40

AR103774

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid Solid Solid Solid Solid SolidSolid Solid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804 012804 012804 012804 012804 012804012804 012804 012804012804 012804 012804 012804 012804 012804

K-15 2-4 K-15 4-6K-12 2-4 K-12 4-6 K-13 2-4 K-13 4-6 K-13 6-8 K-14 2-4 K-14 4-6 K-14 6-8I5-145 2-4 I5-145 4-6 J-16 2-4 J-16 4-6 J-16 6-8Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

7100 2600 25000 1600 2800 8600 2800 2100 900nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

mgkg

EPA 7420EPA 7420

mgkg mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420 EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkg

Page 24 of 40

AR103775

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid Solid Solid Solid Solid SolidSolid Solid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804 012804 012804 012804 012804 012804012804 012804 012804012804 012804 012804 012804 012804 012804

K-15 2-4 K-15 4-6K-12 2-4 K-12 4-6 K-13 2-4 K-13 4-6 K-13 6-8 K-14 2-4 K-14 4-6 K-14 6-8I5-145 2-4 I5-145 4-6 J-16 2-4 J-16 4-6 J-16 6-8Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr22 U 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U45 U 92 U 45 U 190 U 15 U 17 U 43 U 93 U 89 U 43 U 19 U22 U 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U22 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U22 U 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U33 52 260 1300 120 57 320 48 63 210 9667 13 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U

419 65 260 1300 120 57 320 48 63 210 96

mgkg25500

EPA 8082EPA 808210027

mgkgmgkg2550

EPA 8082 EPA 808210025

mgkgmgkg28100

EPA 8082EPA 808250022

mgkgmgkg6110

EPA 8082EPA 808210056

mgkgmgkg28

2000EPA 8082 EPA 8082

20028

mgkgmgkg22500

EPA 8082

Page 25 of 40

AR103776

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT012904 012904012804 012804 012904 012904 012904 012904 012904 012904012904 012904012804 012804

J0 115 2-4 J0 115 4-6I5-70 2-4 I5-70 4-6 I5-70 6-8K-10 8-10 dupG-075 8-10 I5-07 2-4 I5-07 4-6 I5-07 6-8 J-115 2-4 J-115 4-6K-16 4-6 K-16 6-8 Background 000050 G-075 2-4 G-075 4-6 G-075 6-8K-15 6-8 K-16 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

1500 3200 860 810nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

EPA 7420

mgkg

EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420

Page 29 of 40

AR103777

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT012904 012904012804 012804 012904 012904 012904 012904 012904 012904012904 012904012804 012804

J0 115 2-4 J0 115 4-6I5-70 2-4 I5-70 4-6 I5-70 6-8K-10 8-10 dupG-075 8-10 I5-07 2-4 I5-07 4-6 I5-07 6-8 J-115 2-4 J-115 4-6K-16 4-6 K-16 6-8 Background 000050 G-075 2-4 G-075 4-6 G-075 6-8K-15 6-8 K-16 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U

18 U 17 U 44 U 43 U 120 U 120 U 6 U 61 U 110 U 28 U 59 U 84 U 18 U9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U

86 93 24 300 370 340 28 21 660 150 24 610 1209 U 85 U 21 U 21 U 58 U 60 U 29 U 63 56 U 14 U 29 U 41 U 88 U

86 93 24 300 370 340 28 273 660 150 24 610 120

EPA 808250022

mgkgmgkg2350

EPA 8082EPA 808220022

mgkgmgkg27200

EPA 8082 EPA 80822028

EPA 8082EPA 80825

17

EPA 8082EPA 8082

mgkg15100

mgkgmgkg165

mgkg25200

mgkg mgkgmgkg11100

EPA 8082 EPA 8082EPA 80821000100

175

EPA 8082

20mgkgmgkg

15

Page 30 of 40

AR103778

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT013004 013004012904 012904 012904 012904 012904 012904 012904 012904 013004 013004012904 012904

J0 115 6-8 J0 115 8-10 J-115 4-6 dupD5-07 2-4 D5-07 6-8K-11 4-6 S5 (2004) E-075 2-4 E-075 6-8K-10 2-4 K-10 6-8 K-10 8-10 K-11 2-4J-115 6-8 J-115 8-10 K-08 2-4 K-09 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

2400 340 1200 1300nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420

Page 34 of 40

AR103779

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT013004 013004012904 012904 012904 012904 012904 012904 012904 012904 013004 013004012904 012904

J0 115 6-8 J0 115 8-10 J-115 4-6 dupD5-07 2-4 D5-07 6-8K-11 4-6 S5 (2004) E-075 2-4 E-075 6-8K-10 2-4 K-10 6-8 K-10 8-10 K-11 2-4J-115 6-8 J-115 8-10 K-08 2-4 K-09 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr11 U 87 U 63 U 06 U 81 U 10 U 59 U 062 U 6 U 063 U22 U 18 U 13 U 12 U 17 U 20 U 12 U 13 U 12 U 13 U11 U 87 U 63 U 06 U 81 U 10 U 59 U 062 U 6 U 063 U11 U 87 U 63 U 31 81 U 10 U 59 U 062 U 6 U 063 U11 U 87 U 63 U 06 U 81 U 10 U 59 U 062 U 6 U 063 U130 120 100 47 100 99 57 27 73 3311 U 87 U 63 U 12 81 U 10 U 59 U 094 6 U 09

130 120 100 9 100 99 57 364 73 42

20038

EPA 8082

mgkg24200

EPA 8082

mgkg

EPA 808220034

mgkgmgkg19200

EPA 8082EPA 80821

17mgkgmgkg

2210

EPA 8082 EPA 80821

22mgkgmgkg

1810

EPA 8082EPA 80821

20mgkgmgkg

1610

EPA 8082

Page 35 of 40

AR103780

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

DuplicateSolid Solid Solid SolidSolid SolidSolid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT020204 020204 020204 020304020204 020204013004 013004 013004 020204013004 013004013004 013004

TP 3B 5 dupTP 3B 5 TP 3C 7G-065 2-4 G-065 4-6 TP 2B 10 TP 2D 9 TP 3D 6 TP 1B 7F5-07 6-8 F5-07 8-10 TP 1C 9 S-7 (2004)G-065 6-8 G-065 8-10

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nr

013 J 39 U 21 U 39 U 034 J 045 J 04 J 19 U012 J 39 U 21 U 39 U 032 J 049 J 38 U 19 U015 J 39 U 21 U 39 U 037 J 045 J 38 U 19 U

0076 J 39 U 21 U 39 U 022 J 39 U 38 U 19 U0097 J 39 U 21 U 39 U 025 J 045 J 039 J 19 U0083 J 39 U 027 J 39 U 19 U 39 U 38 U 024 J039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U014 J 39 U 21 U 04 J 041 J 058 J 12 J 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr

039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U047 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U09 U 89 U 48 U 89 U 45 U 89 U 88 U 44 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U007 J 068 J 16 J 056 J 15 J 5 045 J 02 J02 J 39 U 21 U 39 U 064 J 075 J 068 J 028 J039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U

0078 J 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nr

039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nr

098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U0066 J 39 U 21 U 39 U 056 J 079 J 38 U 024 J039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U02 J 056 J 21 U 044 J 075 J 12 J 079 J 036 Jnr nr nr nr nr nr nr nr

098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U

EPA 8270

14mgkgmgkg

21

EPA 8270EPA 8270

14mgkgmgkg

15

EPA 8270 EPA 8270

13mgkgmgkg

13

EPA 8270EPA 8270

14mgkgmgkg

14

EPA 8270

Page 38 of 40

AR103781

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateSolid Solid Solid SolidSolid SolidSolid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT020204 020204 020204 020304020204 020204013004 013004 013004 020204013004 013004013004 013004

TP 3B 5 dupTP 3B 5 TP 3C 7G-065 2-4 G-065 4-6 TP 2B 10 TP 2D 9 TP 3D 6 TP 1B 7F5-07 6-8 F5-07 8-10 TP 1C 9 S-7 (2004)G-065 6-8 G-065 8-10

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag4100 9900 7200 9300 16000 7200 7400 13000

29 U 29 U 67 29 U 28 29 U 29 U 29 U83 13 11 62 25 42 75 7371 140 110 120 250 75 160 15029 U 29 U 31 U 29 U 3 29 U 29 U 29 U29 U 69 31 U 29 U 12 29 U 29 U 45

7200 60000 71000 38000 51000 14000 25000 50000270 150 44 63 210 32 130 68nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr55 86 39 83 32 6 77 5230 1200 13000 980 3400 520 130 820

62000 83000 29000 45000 110000 29000 37000 43000270 550 8700 850 1900 300 590 600

1800 7400 30000 12000 6500 4500 7400 9300520 610 320 550 750 370 1400 450039 13 099 22 23 047 17 1110 74 34 56 85 27 38 47590 U 580 U 630 U 580 U 580 U 580 U 620 570 U29 U 18 46 29 U 49 29 U 29 U 4729 U 29 U 31 U 29 U 29 U 29 U 29 U 29 U

1300 580 U 630 U 580 U 580 U 580 U 580 U 570 U23 U 23 U 25 U 23 U 23 U 23 U 23 U 23 Unr nr nr nr nr nr nr nr24 28 33 21 28 24 150 22320 2700 700 490 4100 690 680 1500nr nr nr nr nr nr nr

EPA 6020

mgkgmgkg

EPA 6020EPA 6020

mgkgmgkg

EPA 6020EPA 6020

mgkgmgkg

EPA 6020 EPA 6020

mgkgmgkg

EPA 6020

Page 39 of 40

AR103782

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateSolid Solid Solid SolidSolid SolidSolid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT020204 020204 020204 020304020204 020204013004 013004 013004 020204013004 013004013004 013004

TP 3B 5 dupTP 3B 5 TP 3C 7G-065 2-4 G-065 4-6 TP 2B 10 TP 2D 9 TP 3D 6 TP 1B 7F5-07 6-8 F5-07 8-10 TP 1C 9 S-7 (2004)G-065 6-8 G-065 8-10

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

068 U 12 U 12 U 17 U 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U14 U 24 U 24 U 34 U 26 U 150 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U068 U 12 U 12 U 17 U 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U068 U 12 U 12 U 22 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U068 U 12 U 12 U 17 U 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U67 12 150 270 110 370 059 U 15 063 U 12 16 24 14 096 U068 U 12 U 12 U 59 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U67 12 150 351 110 370 ND 15 ND 12 16 24 14 096

EPA 80822

16mgkgmgkg

271

EPA 8082 EPA 8082

mgkgmgkg

EPA 8082EPA 808210031

mgkgmgkg2220

EPA 8082EPA 80822526

mgkgmgkg1720

EPA 8082 EPA 8082

mgkgmgkg

EPA 8082EPA 8082

mgkgmgkg

EPA 8082EPA 8082

mgkgmgkg

EPA 8082

Page 40 of 40

AR103783

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer DumpS-1-2005

Y-055 12-14 dup

ENSATSubsurface Soil

020205

SolidDuplicate

Sauer Dump

020205

Solid

Y-055 10-12Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpY-055 20-22 G-0625 6-8 G-0625 8-10 J-115 10-12Y-055 6-8 Y-055 8-10Y-055 2-4 Y-055 4-6 G-0625 10-12 J-115 12-14Y-055 12-14 Y-055 14-16 Y-055 16-18 Y-055 18-20

020205 020205 020205 020205 020205 020305 020305 020305020205 020205 020205 020205 020305 020305ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSAT

Subsurface Soil Subsurface Soil Subsurface SoilSubsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid Solid

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrbeta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrdelta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-BHC (Lindane) nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChlordane total nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDD nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDE nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDT nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDieldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan I nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan II nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan sulfate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin aldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin ketone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor epoxide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethoxychlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToxaphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAroclor-1016 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1221 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1232 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1242 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1248 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1254 29 27 31 31 056 U 049 U 031 U 028 U 03 47 16 031 U 20 43 061 U 065 UAroclor-1260 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UTotal PCBs 29 27 31 31 ND ND ND ND 03 47 16 ND 20 43 ND ND

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag

23mgkg

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082

22 21 20 2415 1721 28 51 57 50 23 60 6315mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkg

Page 5 of 30

AR103784

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpK-16 10-12 K-16 12-14 K-16 14-16 K-17 10-12 K-17 2-4 L-10 2-4J-115 8-10 S-2-2005J-115 14-16 J-115 6-8 K-17 4-6 K-17 6-8 K-17 8-10K-16 6-8 K-16 8-10

J-115 10-12 dup

020305 020305 020405 020405020305 020305 020405 020405 020405 020405 020405 020405 020405 020405ENSAT ENSAT ENSAT ENSATENSAT

020705ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSolidSolid Solid Solid Solid Solid SolidSolid Solid Solid SolidSolid Solid Solid Solid

Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 33 41 06 U 048 U 051 U 051 U 39 43 075 U 69 23 35 13 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 39 18 U 18 U 038 U 099 UND 33 41 ND ND ND ND 39 43 ND 69 23 35 13 ND

EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082

5749 52 52 3251 31 27 59 68 21 30 36 7633mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg

Page 10 of 30

AR103785

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-10 4-6 L-14 0-2L-12 0-2 L-13 0-2 L-15 0-2 L-16 0-2 L-16 10-12 L-16 2-4

020705 020705 020705 020805 020805020805 020805 020805ENSAT ENSATENSATENSAT ENSATENSAT ENSATENSAT ENSAT

Surficial SoilENSAT

Subsurface SoilSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid

Subsurface SoilSolid

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolidSolid

020705 020705 020705 020805 020805

Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-10 10-12 L-10 6-8 L-10 8-10L-09 10-12 L-09 2-4 L-09 4-6 L-09 6-8 L-09 8-10

020805 020805 020805ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 33 012 U 017 U 012 U 0093 U 25 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 2 084 13 37 0088 U 12 045 11 017 034 87 11 0088 U 2413 U 064 U 072 U 037 U 68 U 23 U 0088 U 39 02 029 012 U 0093 U 22 027 0088 U 067ND ND 2 084 13 37 ND 192 065 139 017 034 134 137 ND 307

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 80821 25 1

82 80 72 62 62mgkgmgkg mgkg mgkgmgkg mgkg mgkgmgkg mgkg

EPA 8082 EPA 8082 EPA 8082

mgkg mgkg mgkg mgkg

164

1 20 1 1 162 24 73 80 73

mgkg mgkg mgkg

Page 15 of 30

AR103786

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpL-16 6-8 L-16 8-10 L-17 2-4 L-17 4-6 L-17 6-8

020805ENSATENSAT ENSAT ENSAT ENSAT

020805020805 020805ENSATENSAT ENSAT ENSAT

SolidSolidSolidSolid

ENSATSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT

SolidSubsurface SoilSubsurface Soil Subsurface Soil

SolidSolid Solid Solid

ENSAT020805 020805

Subsurface Soil

020905 020905 020905 020905 020905

L-08 2-4 L-08 4-6L-16 4-6Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

L-17 8-10 S-6-2005 S-7-2005 L-08 6-8L-07 4-6 L-07 6-8L-07 2-4L-09 6-8 dup L-17 2-4 dup

020805 020805 020805 020905ENSAT ENSAT ENSAT

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSolid Solid

Subsurface SoilSolidSolid Solid Solid

Subsurface Soil

Duplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 018 U01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 018 U01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 018 U

033 01 U 081 U 1 U 092 U 11 U 074 U 012 U 034 016 U 016 U 015 U 83 4 018 U01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 02

044 01 U 081 U 1 U 092 U 11 U 074 U 034 13 018 022 016 4 13 067021 01 U 081 U 1 U 092 U 11 U 074 U 015 037 016 U 016 U 015 U 21 21 018 U098 ND ND ND ND ND ND 049 201 018 022 016 144 191 087

EPA 8082 EPA 8082 EPA 8082EPA 8082EPA 8082EPA 8082 EPA 8082EPA 80821 1 1 10 10

677768mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg

EPA 8082 EPA 8082 EPA 8082

mgkg

1EPA 8082EPA 8082

1

mgkg67 59

EPA 8082 EPA 80821 1 1

77 74 72 73 79 791

60 58 8177mgkgmgkg mgkg

Page 20 of 30

AR103787

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpS-9-2005 L-11 10-12S-8-2005 L-11 4-6L-15 10-12 L-15 2-4 L-11 2-4L-15 4-6

020905020905020905 020905 020905 020905 021005021005 021005020905 021005020905ENSAT ENSAT ENSAT ENSAT ENSAT

Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSolidSolid Solid SolidSolid Solid

DuplicateDuplicate

020905

L-14 4-6Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump

L-15 8-10L-15 6-8 L-11 6-8L-14 6-8L-14 2-4L-08 4-6 dup L-07 2-4 dup

020905ENSAT ENSATENSATENSAT ENSAT ENSATENSAT ENSATENSAT

Subsurface SoilSubsurface SoilSolidSolid Solid Solid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr25 U 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U25 U 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U25 U 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U25 U 37 13 U 0076 U 28 U 45 011 U 0085 U 023 017 U 098 059 021 04412 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U24 12 17 0076 U 38 10 011 U 0085 U 062 024 29 22 074 1416 43 28 0076 U 15 47 011 U 0085 U 013 U 017 U 067 088 018 03452 20 198 ND 53 192 ND ND 085 024 455 367 113 218

EPA 8082EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 80821 2 2 11 11 50 10 1

7469 61 7258mgkg

41 6462mgkg

33 7410 10

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082EPA 8082150

80 68 7156mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg

Page 25 of 30

AR103788

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-12 2-4 L-12 4-6L-12 10-12

L-11 8-10 dup

021005 021005021005 021005 021005 021005 021005021005 021005 021005 021005 021005021005ENSATENSAT ENSATENSATENSAT

Subsurface SoilSubsurface Soil Subsurface SoilSubsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSolidSolid Solid Solid Solid Solid SolidSolid Solid

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-12 6-8 S-11-2005 S-12-2005L-13 4-6 L-13 6-8 L-13 8-10 S-10-2005L-12 8-10 L-13 2-4L-11 8-10 M-08 2-4 M-08 4-6

L-12 2-4 dup L-11 4-6 dup

030905 030905ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT

Solid SolidSolid Solid Solid SolidDuplicateDuplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U024 1 065 37 24 08 16 039 10 62 071 015 041 056 U 076 U017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U08 38 25 14 83 26 25 08 15 15 28 067 13 056 U 076 U026 12 095 5 3 15 12 12 13 43 084 022 033 056 U 076 U13 6 41 227 137 49 53 239 38 255 435 104 204 ND ND

EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 808222 25 1

6872 72 70 61 70 70 69 80 57mgkgmgkg mgkg mgkg mgkg

EPA 8082EPA 8082 EPA 8082 EPA 808210 101 52 10 1 1

6580 58 7373mgkg mgkgmgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkg

Page 30 of 30

AR103789

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0023 U 00082 J 0025 J 0033 U 0031 U 0029 U 0014 J 0023 J 0029 UAcetonitrile nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nrBenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nrBromodichloromethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UBromoform 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UBromomethaneMethyl bromide 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U2-Butanone (Methyl Ethyl Ketone) 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Un-Butylbenzene nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nrCarbon Disulfide 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UCarbon Tetrachloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChloroethaneEthyl chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether nr nr nr nr nr nr nr nr nrChloroform 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChloromethaneMethyl chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChloroprene nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nrCyclohexane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UCyclohexane Butyl- nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dibromoethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U14-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UDichlorodifluoromethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U11-Dichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U11-Dichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Ucis-12-Dichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Utrans-12-Dichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dichloroethene (Total) nr nr nr nr nr nr nr nr nrDichloromethane nr nr nr nr nr nr nr nr nr12-Dichloropropane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichloropropane nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Utrans-13-Dichloropropene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg

1 1 1 11 1 1 1SW846 8260B SW846 8260B SW846 8260BSW846 8260B SW846 8260B SW846 8260B SW846 8260B SW846 8260B

TOC TOC TOCno no no TOC TOC TOCyes - PCBs only yes - PCBs only

no no no no noyes - PCBs only yes - PCBs only yes - PCBs only yes - PCBs onlyyes - PCBs only yes - PCBs only yes - PCBs only yes - PCBs onlyyes - PCBs only yes - PCBs only yes - PCBs only yes - PCBs only

no no nono no no no no noyes - lead only yes - lead only

no no no no noyes - lead only yes - lead only yes - lead only yes - lead onlyyes - lead only yes - lead only yes - lead only yes - lead onlyyes - lead only yes - lead only yes - lead only yes - lead only

no no noyes yes yes no no nono no

yes yes yes yes yesyes yes no noyes yes no noyes yes yes yes

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

SW846 8260B1

Solid

mgkg

yesyes

yes - lead onlyno

yes - PCBs onlyno

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

Page 1 of 15

AR103790

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nrEthylbenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nrHexachlorobutadiene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UHexane nr nr nr nr nr nr nr nr nr2-Hexanone 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nrIsopropylbenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Up-Isopropyl Toluene nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nrMethyl Acetate 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UMethylcyclohexane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nrMethylene Chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1-Methyl-indan nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether 00057 U 00075 U 00011 J 000068 J 00078 U 00073 U 00061 U 00083 U 00073 UNaphthalene 0039 J 0063 J 14 U 0074 J 037 J 11 U 083 U 11 U 12 UNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nrStyrene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1112-Tetrachloroethane nr nr nr nr nr nr nr nr nr1122-Tetrachloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UTetrachloroethene 00015 J 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nrToluene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr124-Trichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U111-Trichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U112-Trichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UTrichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U11 2 - Trichloro -1 2 2 -trifluoroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UTrichlorofluoromethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U123-Trichloropropane nr nr nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nrVinyl Acetate nr nr nr nr nr nr nr nr nrVinyl chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U m+p-Xylenes nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nrXylenes (Total) 0017 U 0023 U 003 U 0025 U 0023 U 0022 U 0018 U 0025 U 0022 U

1 1 11 1 1 1SW846 8260B SW846 8260BSW846 8260B SW846 8260B SW846 8260B SW846 8260BSW846 8260B

mgkg

SW846 8260B1

SW846 8260B1

mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkg

Page 2 of 15

AR103791

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

SVOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 0045 J 0048 J 14 U 025 J 15 11 U 083 U 11 U 12 UAcenaphthylene 0079 J 099 UJ 14 U 0028 J 0027 J 11 U 083 U 11 U 12 UAcetophenone 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UAnthracene 015 J 0087 J 14 U 031 J 27 11 U 083 U 11 U 12 UAtrazine 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UBenzaldehyde 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UBenzo(a)Anthracene 045 J 025 J 0077 J 077 J 63 0033 J 0039 J 11 U 12 UBenzo(a)Pyrene 03 J 017 J 14 U 049 J 76 11 U 0025 J 11 U 12 UBenzo(b)fluoranthene 029 J 016 J 008 J 065 J 85 11 U 0023 J 11 U 12 UBenzo(ghi)Perylene 007 J 0061 J 14 U 019 J 17 002 J 0025 J 11 U 12 UBenzo(k)fluoranthene 012 J 0069 J 14 U 027 J 3 11 U 083 U 11 U 12 UBenzylbutylphthalateButylbenzylphthalate 0089 J 051 J 14 U 0087 J 11 U 11 U 083 U 11 U 12 U11-Biphenyl 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Bromophenyl-phenylether 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UCaprolactam 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UCarbazole 0056 J 099 UJ 14 U 019 J 11 11 U 083 U 11 U 12 U4-Chloroaniline 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Chloroethoxy)Methane 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Chloroethyl)Ether 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Chloroisopropyl)Ether nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Chloronaphthalene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Chlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Chlorophenyl-phenylether 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UChrysene 054 J 03 J 0087 J 087 J 69 004 J 006 J 11 U 12 UDibenzo(ah)Anthracene 0022 J 099 UJ 14 U 11 U 04 J 11 U 083 U 11 U 12 UDibenzofuran 0025 J 0032 J 14 U 0071 J 049 J 11 U 083 U 11 U 12 U12-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U14-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U33-Dichlorobenzidine 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U24-Dichlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDiethylphthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U24-Dimethylphenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDimethyl Phthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDi-n-Butylphthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U46-Dinitro-2-Methylphenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U24-Dinitrophenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U24-Dinitrotoluene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U26-Dinitrotoluene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDi-n-Octyl Phthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Ethylhexyl)Phthalate 026 J 076 J 14 U 074 J 11 U 17 J 083 U 11 U 12 UFluoranthene 058 J 036 J 14 U 11 nr 11 U 0048 J 11 U 12 UFluorene 0045 J 099 UJ 14 U 013 J 089 J 11 U 083 U 11 U 12 UHexachlorobenzene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UHexachlorobutadiene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UHexachlorocyclopentadiene 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UHexachloroethane 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UIndeno(123-cd)Pyrene 0099 J 0059 J 14 U 022 J 21 11 U 083 U 11 U 12 UIsophorone 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Methylnaphthalene 0036 J 0058 J 14 U 0032 J 012 J 11 U 083 U 11 U 12 U2-Methylphenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Methylphenol 0026 J 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UMethylMercury nr nr nr nr nr nr nr nr nrNaphthalene 0039 J 0063 J 14 U 0074 J 037 J 11 U 083 U 11 U 12 U2-Nitroaniline 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U3-Nitroaniline 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U4-Nitroaniline 0025 J 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UNitrobenzene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Nitrophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Nitrophenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UN-Nitroso-Di-n-Propylamine 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UN-Nitrosodiphenylamine 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U22-Oxybis(1-Chloropropane) 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UPentachlorophenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UPhenanthrene 054 J 039 J 0083 J 14 nr 0039 J 0049 J 11 U 12 UPhenol 0048 J 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UPyrene 074 J 035 J 01 J 15 17 0046 J 0097 J 11 U 12 U124-Trichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U245-Trichlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U246-Trichlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U

mgkg mgkgmgkg mgkg mgkg mgkg

2 22 2 2 2SW846 8270C SW846 8270C SW846 8270CSW846 8270C SW846 8270C SW846 8270C SW846 8270C SW846 8270C

2 2

mgkg mgkg

SW846 8270C2

mgkg

Page 3 of 15

AR103792

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium III nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrLead 626 13100 752 770 935 323 76 249 223 1350 180 109 118 159 1320Magnesium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrTin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCyanide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

mgkg mgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg

0 41 1 1 11 1 4 150 1 2 1EPA 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B EPA 6010B EPA 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B

mgkg

SW846 6010B2

Page 4 of 15

AR103793

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrbeta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrdelta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-BHC (Lindane) nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChlordane total nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDD nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDE nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDT nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDieldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan I nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan II nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan sulfate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin aldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin ketone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor epoxide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethoxychlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToxaphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAroclor-1016 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 0059 U 980 U 55 U 45 U 38 U 49 U 990 UAroclor-1221 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 0059 U 980 U 86 U 70 U 6 U 49 U 990 UAroclor-1232 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 084 980 U 55 U 45 U 38 U 49 U 990 UAroclor-1242 0039 U 005 U 0031 J 0056 U 0053 U 0053 U 0041 U 0034 J 0059 U 980 U 870 1700 120 49 U 990 UAroclor-1248 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 0059 U 9400 55 U 45 U 38 U 49 U 22000Aroclor-1254 071 16 0063 J 035 0053 U 012 0041 U 0098 14 44000 1000 1600 130 260 49000Aroclor-1260 063 064 0034 J 02 0043 J 006 003 J 005 J 0059 U 980 U 900 1600 130 49 U 990 UTotal PCBs 134 224 0128 055 0043 018 003 0182 224 53400 2770 4900 380 260 71000

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagTOC 32500 nr nr 13900 158000 nr

mgkg mgkgmgkg mgkgmgkg mgkg

9 not samplednot sampled 22 not sampledEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn

ugkg ugkgmgkg mgkg ugkg ugkgmgkg mgkg ugkg ugkgmgkg mgkg mgkg mgkg

0 251 1 5 11 1 25 101 1 1 1SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

1

mgkg

SW846 8082

Page 5 of 15

AR103794

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid Solid Solid SolidSolid Solid SolidSolid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieSubsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 122007 122007 122007 122007122007 122007121907 122007 122007 122007122007 122007 122007 122007

C7L210240016 C7L210240013 C7L210240020 C7L210240002 C7L210240001 C7L210240004 C7L210240005 C7L210240009 C7L210240010 C7L210240011C7L210240021 C7L210240019C7L210240033 C7L210240035 C7L210240015HS-SB-12-18-20HS-SB-12-09-10 HS-SB-12-14-15HS-SB-07-09-10 HS-SB-07-13-15 HS-SB-08-09-10 HS-SB-09-04-05 HS-SB-09-08-10 HS-SB-09-135-15HS-SB-05-16 HS-SB-06-14 HS-SB-10-08-10 HS-SB-10-11-12 HS-SB-11-08-09 HS-SB-11-09-10

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

448 647 621 217 736 473 178 418 76 nr 2760 221 382 2590 695nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkg mgkgmgkgmgkg mgkg mgkgmgkg mgkgmgkgmgkg mgkg mgkg mgkg

8 0 1 62 00 01 not sampled1 0 1 1SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B not sampled SW846 6010B

Page 9 of 15

AR103795

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteTOC

Solid Solid Solid SolidSolid Solid SolidSolid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieSubsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 122007 122007 122007 122007122007 122007121907 122007 122007 122007122007 122007 122007 122007

C7L210240016 C7L210240013 C7L210240020 C7L210240002 C7L210240001 C7L210240004 C7L210240005 C7L210240009 C7L210240010 C7L210240011C7L210240021 C7L210240019C7L210240033 C7L210240035 C7L210240015HS-SB-12-18-20HS-SB-12-09-10 HS-SB-12-14-15HS-SB-07-09-10 HS-SB-07-13-15 HS-SB-08-09-10 HS-SB-09-04-05 HS-SB-09-08-10 HS-SB-09-135-15HS-SB-05-16 HS-SB-06-14 HS-SB-10-08-10 HS-SB-10-11-12 HS-SB-11-08-09 HS-SB-11-09-10

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 690 1100 43 U 180 1300 5500 51 U 51 33 U 6000 43 U 6700 290000 15039 U 660 210 U 43 U 240 1300 2600 740 18 U 33 U 220 U 43 U 2100 49000 39 J39 U 48 U 1900 43 U 28 U 200 U 410 U 51 U 110 33 U 2800 43 U 590 U 6200 U 59 U

1350 3000 420 2600 8100 740 161 8800 8800 339000 189

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 1160 U 11100 120000 52100 nr nr nr nr nr nr nr nr 140000 nr

mgkg mgkg mgkg mgkgmgkgmgkg mgkg mgkgmgkg mgkgmgkgmgkg mgkg mgkg mgkg

not sampled not sampled not sampled 8not sampled not samplednot sampled 9 not sampled not sampled9 22 9 not sampledEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn

ugkg ugkg ugkg ugkgugkgugkg ugkg ugkgugkg ugkgugkgugkg ugkg ugkg ugkg

5 0 10 12510 00 0 00 05 0 0 5SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

Page 10 of 15

AR103796

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid SolidSolid Solid Solid SolidSolid SolidSubsurface Soil Subsurface Soil

Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie122107 122107

Malcolm Pirnie Malcolm Pirnie122107 122107122007 122007 122007 122007 122007 122007 122007 122007

5244089 5244090 52440995244091 5244092 52441005244093 5244095 5244096 5244094 5244097 5244098HS-SB-15-19-20HS-SB-15-13-15 HS-SB-15-17-18HS-SB-13-09-10 HS-SB-13-14-15 HS-SB-13-17-18 HS-SB-14-19-20 HS-SB-15-09-10HS-SB-13-19-20 HS-SB-14-09-10

Sauer Dump Sauer DumpHS-SB-14-14-15 HS-SB-14-16-17

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

10500 1770 94 973 858 389 176 855 1190 573 569 922nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

mgkgmgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg

1 11 1 1 1 11 1EPA 6010B EPA 6010B

10 1 1EPA 6010B EPA 6010BEPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B

Page 14 of 15

AR103797

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteTOC

Solid SolidSolid Solid Solid SolidSolid SolidSubsurface Soil Subsurface Soil

Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie122107 122107

Malcolm Pirnie Malcolm Pirnie122107 122107122007 122007 122007 122007 122007 122007 122007 122007

5244089 5244090 52440995244091 5244092 52441005244093 5244095 5244096 5244094 5244097 5244098HS-SB-15-19-20HS-SB-15-13-15 HS-SB-15-17-18HS-SB-13-09-10 HS-SB-13-14-15 HS-SB-13-17-18 HS-SB-14-19-20 HS-SB-15-09-10HS-SB-13-19-20 HS-SB-14-09-10

Sauer Dump Sauer DumpHS-SB-14-14-15 HS-SB-14-16-17

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

460 U 120 U 88 U 41 U 42 U 63 U 43 U 4 U 40 U 21 U 79 U 4 U720 U 190 U 140 U 65 U 66 U 100 U 67 U 64 U 62 U 33 U 12 U 63 U460 U 120 U 88 U 41 U 42 U 63 U 43 U 4 U 40 U 21 U 79 U 4 U460 U 11000 88 U 41 U 42 U 4200 43 U 39 40 U 21 U 79 U 4 U

7200 120 U 700 64 J 39 63 U 45 4 U 2400 1400 340 17 J4900 3800 290 J 41 U 66 1600 63 95 J 1700 840 410 14 J2100 J 3000 180 J 41 U 42 790 34 94 J 2200 820 100 59 J

14200 17800 1170 6 147 6590 142 579 6300 3060 850 369

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr

mgkgmgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg

EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn

ugkgugkg ugkg ugkgugkg ugkg ugkg ugkg ugkg ugkgugkg ugkg

1 1010 1 5 2 120 10SW846 8082 SW846 8082

100 1 1SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

Page 15 of 15

AR103798

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 001 U 001 U 001 U 001 U 0021 B 0018 B 0019 B 0021 B 0022 B 0016 B 0022 B 0019 B 0012 BAcetonitrile nr nr nr nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBromoform 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBromomethaneMethyl bromide 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Un-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide 0005 U 0005 U 0042 0005 U 001 U 001 U 0001 J 0003 J 001 U 001 U 001 U 0003 J 001 UCarbon Tetrachloride 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChlorobenzene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChloroethaneEthyl chloride 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChloromethaneMethyl chloride 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChloroprene nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromoethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrDichlorodifluoromethane nr nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U12-Dichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U11-Dichloroethene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ucis-12-Dichloroethene nr nr nr nr nr nr nr nr nr nr nr nr nrtrans-12-Dichloroethene 0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr nr nr12-Dichloroethene (Total) nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U13-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Utrans-13-Dichloropropene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

noyes

not reported

yesyesyes

mgL

no

1NA

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

yes yes yes yes yes yes yes yesyes yes yes yesyes yes yes yes yes yes yesyes yes yes yes yes

yes yes yes yes yes yes yes yes yes yes yes yesno no no no no no no no no no no noyes yes yes yes yes yes yes yesyes yes yes yes

no no no no no no nono no no no no

not reported not reported not reported1 1 1 1 1 1 1 11 1 1 1

NA NA NA NA NA NA NANA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 1 of 28

AR103799

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr nr nr nr nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nr nr nr nr nrIsopropylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrp-Isopropyl Toluene nr nr nr nr nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr nr nr nr nr nrMethylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 MethyMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 0005 U 0005 U 0005 U 0005 U 002 B 0002 JB 0009 JB 0008 JB 0006 JB 0001 JB 0003 JB 0004 JB 0002 JB1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrStyrene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U1112-Tetrachloroethane nr nr nr nr nr nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UTetrachloroethene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr111-Trichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U112-Trichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UTrichloroethene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr nr nr nr nr nrTrichlorofluoromethane nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr nr nrVinyl chloride 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U m+p-Xylenes nr nr nr nr nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U

mgL mgL mgL mgLmgL mgL mgL mgLmgL mgL mgL mgLNA NA NA NANA NA NA NANA NA NA NA1 1 1 11 1 1 11 1 1 1

not reported not reported not reported

mgL

not reported1

NA

Page 3 of 28

AR103800

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 001 U 001 U 002 U 001 U 001 U 0004 J 001 U 001 U 001 U 001 U 001 U 0007 J 001 UAcenaphthylene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UAcetophenone nr nr nr nr nr nr nr nr nr nr nr nr nrAnthracene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UAtrazine nr nr nr nr nr nr nr nr nr nr nr nr nrBenzaldehyde nr nr nr nr nr nr nr nr nr nr nr nr nrBenzo(a)Anthracene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(a)Pyrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(b)fluoranthene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(ghi)Perylene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(k)fluoranthene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzylbutylphthalateButylbenzylphthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 U11-Biphenyl nr nr nr nr nr nr nr nr nr nr nr nr nr4-Bromophenyl-phenylether 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UCaprolactam nr nr nr nr nr nr nr nr nr nr nr nr nrCarbazole nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Chloroaniline 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Chloroethoxy)Methane 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Chloroethyl)Ether 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Chloroisopropyl)Ether 001 U 001 U 002 U 001 U nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Chloronaphthalene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Chlorophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Chlorophenyl-phenylether 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChrysene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDibenzo(ah)Anthracene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDibenzofuran 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 U12-Dichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U13-Dichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U14-Dichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U33-Dichlorobenzidine 002 U 002 U 004 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U24-Dichlorophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDiethylphthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U24-Dimethylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDimethyl Phthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDi-n-Butylphthalate 0007 JB 0005 JB 0004 JB 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 JB 001 U46-Dinitro-2-Methylphenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U24-Dinitrophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U24-Dinitrotoluene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U26-Dinitrotoluene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDi-n-Octyl Phthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Ethylhexyl)Phthalate 001 U 001 U 002 U 001 U 001 U 0003 JB 0001 JB 0006 JB 0023 B 0015 B 0032 B 0004 JB 001 UFluoranthene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0002 J 001 UFluorene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 UHexachlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UHexachlorobutadiene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UHexachlorocyclopentadiene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UHexachloroethane 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UIndeno(123-cd)Pyrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UIsophorone 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Methylnaphthalene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Methylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Methylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UMethylMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Nitroaniline 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U3-Nitroaniline 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U4-Nitroaniline 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 UNitrobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Nitrophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Nitrophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 UN-Nitroso-Di-n-Propylamine 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UN-Nitrosodiphenylamine 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U22-Oxybis(1-Chloropropane) nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UPentachlorophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 UPhenanthrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UPhenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UPyrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 U124-Trichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U245-Trichlorophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U

1NA

mgL

1 2 1 1 1 1 1 1 1 1 1 1NA NA NA NA NA NA NA NA NA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgLmgL mgL mgL mgL

Page 4 of 28

AR103801

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

246-Trichlorophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U

Page 5 of 28

AR103802

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 957 089 J 735 0232 JB 00352 B 30 301 734 682 183 179 948 116Antimony 006 U 006 U 006 U 006 U 00169 U 00359 B 00169 U 00169 U 00169 U 00169 U 00169 U 00169 U 00169 UArsenic 001 U 00145 R 00303 R 001 U 00022 U 00688 00047 B 00359 00169 00125 00022 U 00246 00022 UBarium 0628 02 U 0617 02 U 00029 U 144 0283 752 0804 0769 0155 B 0953 00899 BBeryllium 0005 U 0005 U 0008 0005 U 00004 B 00012 B 00004 U 00099 00176 00026 B 00004 U 00268 00004 UCadmium 0005 U 0005 J 0005 U 0005 U 0001 U 00065 0001 U 00015 B 00522 0007 B 0001 U 00382 0001 UCalcium 572 6275 347 5 U 015 B 364 240 235 184 129 105 110 374Chromium 001 U 001 U 0332 001 U 00045 U 0227 00302 0802 0761 0162 00154 0559 00045 UChromium III nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 005 U 005 U 005 U 005 U 00027 U 00365 B 00036 B 00769 B 017 00328 B 00031 B 0375 00328 BCopper 0025 U 0025 U 114 0025 U 0005 B 0845 00725 0722 0679 039 0136 073 00382Iron 3112 117 25325 01 U 00148 B 157 204 254 164 78 715 108 733Lead 00297 J 0005 U 0546 0005 U 00057 276 012 26 141 055 00501 0973 00331Magnesium 168 120 5675 5 U 00408 U 70 499 144 159 127 103 129 285Manganese 1324 0342 194 0015 U 00047 U 181 0864 287 914 149 0581 376 39Mercury 00002 U 00002 U 00058 00002 U 00001 U 00022 000026 00001 U 00001 U 00001 U 00001 U 0013 B 00001 UNickel 004 U 004 U 0333 004 U 00054 U 0213 00208 B 0604 111 0198 00133 B 0713 00109 BPotassium 373 J 402 J 335 J 5 U 0242 U 221 196 446 545 387 285 417 744Selenium 0005 U 0005 U 0005 U 0005 U 00036 U 00081 00038 B 00149 0018 U 00036 U 00036 U 00048 B 00036 USilver 001 U 001 U 001 U 001 U 00025 U 00027 B 00025 U 00147 00025 U 00026 B 00025 U 00137 00025 USodium 375 J 760 J 110 J 5 U 0544 B 723 921 636 579 545 345 723 785Thallium 001 U 001 U 001 U 001 U 00017 U 0003 B 00017 U 00125 B 00085 U 00085 U 00085 U 00085 U 00017 UTin 004 U 004 U 004 U 004 U nr nr nr nr nr nr nr nr nrVanadium 005 U 005 U 0869 005 U 00028 U 03 00539 0247 0278 00774 00054 B 0253 0006 BZinc 0197 002 U 541 002 U 00022 U 785 0449 558 112 239 0193 108 0147Cyanide 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 00186 001 U 0015 001 U 001 U

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr

1

NAmgL

1 1 1 1 11 1 1 1NA NA NA NA NA NA NANA NA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

1 1 1

Page 6 of 28

AR103803

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 Ualpha-BHC 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 00000074 J 000005 U 0000065 J 000005 U 000005 Ubeta-BHC 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 Udelta-BHC 000005 U 000005 U 00005 U 000005 U 00000014 J 000005 U 000005 U 000005 U 00000024 JB 000005 U 000005 U 000005 U 000005 Ugamma-BHC (Lindane) 000005 U 000005 U 00005 U 000005 U 000005 U 00000036 J 000005 U 000005 U 00000039 J 000005 U 000005 U 000005 U 000005 Ualpha-Chlordane nr nr nr nr 000005 U 00000011 J 000005 U 000005 U 000005 U 000005 U 00000012 J 000005 U 000005 Ugamma-Chlordane nr nr nr nr 000005 U 000005 U 0000001 J 000005 U 000005 U 00000024 J 000005 U 000005 U 000005 UChlordane total 00005 U 00005 U 0005 U 00005 U nr nr nr nr nr nr nr nr nr44-DDD 00001 U 00001 U 0001 U 00001 U 00001 U 00000022 J 00001 U 00001 U 00000031 J 00001 U 00001 U 00001 U 00001 U44-DDE 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00000027 J 00000024 J 00000018 J 00001 U 00001 U 00001 U 00001 U44-DDT 00001 U 00001 U 0001 U 00001 U 00001 U 00000032 J 00000022 J 00000032 J 00001 U 00001 U 00001 U 00001 U 00001 UDieldrin 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 UEndosulfan I 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 UEndosulfan II 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00000017 J 00001 U 00001 UEndosulfan sulfate 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00000024 J 00001 U 00001 U 00001 U 00001 UEndrin 00001 U 00001 U 0001 U 00001 U 00001 U 00000017 J 00000016 J 00001 U 00000029 J 00000012 J 00001 U 00001 U 00001 UEndrin aldehyde 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00000027 J 00000043 JEndrin ketone 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 UHeptachlor 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 UHeptachlor epoxide 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 UMethoxychlor 00001 U 00001 U 0001 U 00001 U 00005 U 00005 U 00005 U 00005 U 00005 U 00005 U 00005 U 00005 U 00000041 JToxaphene 0001 U 0001 U 001 U 0001 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 UAroclor-1016 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1221 00001 U 00001 U 0001 U 00001 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 UAroclor-1232 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1242 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1248 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1254 0001 U 0001 U 00299 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 000059 J 000017 JAroclor-1260 0001 U 0001 U 001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UTotal PCBs 00299 000059 000017

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

mgLNA

1 1 1 1 1 11 1 1 1NA NA NA NA NA NA NANA NA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 7 of 28

AR103804

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0016 B 0015 B 0018 B 001 U 0008 B 001 B 001 U nr nr nr nr nr 00104 B 00082 B

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

yes yes yes no no no noyes yes yes yes no yes yesyes no no no noyes yes yes yes yesno no no yes

yes yes no noyes yes yes yes CN only CN onlyyes yes yes yesno no no nono no no no yesno no no no yes

yes yes yes PCBs PCBs PCBs PCBsyes yes no no PCBs yes yesno no no no nono no no no nono no no no

EPA 8260 EPA 82601 1 1 1 1 1 1 Not Reported Not Reported

NA NA NANA NA NA NA NANAmgL mgL mgL mgLmgL mgL mgL mgL mgL

Holding time exceeded

Page 8 of 28

AR103805

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr0003 JB 0002 JB 0004 JB 0002 JB 0003 JB 0001 JB 0004 JB nr nr nr nr nr 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 001 U 001 U

Holding time exceededmgL mgLmgL mgL mgLmgL mgL mgL mgLNA NANA NA NANA NA NA NA

Not Reported Not Reported1 1 11 1 1 1EPA 8260 EPA 8260

Page 10 of 28

AR103806

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr 004442 B 003135 B005 U 001 U 005 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 0001 J 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0009 JB 0012 B 0053 B 0025 B 0039 B nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr

EPA 625EPA 6251 11 1 1

NA NA NA NANA NA NAmgL mgL mgL mgL mgL mgL mgL

Incomplete lab report No other SVOCs detected

Incomplete lab report No other SVOCs detected

Page 11 of 28

AR103807

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

246-Trichlorophenol

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

Page 12 of 28

AR103808

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0192 B 112 0116 B 176 0157 B nr nr 05 U 365 784 239 056 nr nr00169 U 00169 U 00169 U 00169 U 00169 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr00022 U 00138 00042 B 00022 U 00022 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr00553 B 00774 B 00352 B 00325 B 00437 B nr nr 05 U 05 U 05 U 052 05 U nr nr00004 B 00004 U 00004 U 00004 U 00004 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr0001 U 0001 U 0001 U 0001 U 0001 B nr nr 005 U 005 U 005 U 005 U 005 U nr nr271 356 292 594 309 nr nr 927 30 30 818 298 nr nr

00045 U 00059 B 00045 U 00207 00045 U nr nr 01 U 01 U 01 U 01 U 01 U nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

00027 U 00051 B 00027 U 00027 U 00027 U nr nr 01 U 01 U 01 U 01 U 01 U nr nr00122 B 0025 00099 B 00206 B 00123 B nr nr 01 U 01 U 01 U 01 U 01 U nr nr143 908 286 267 343 nr nr 2424 409 72 131 172 nr nr

00147 00538 00061 0017 00076 nr nr 025 U 025 U 025 U 025 U 025 U nr nr869 103 85 818 882 nr nr 449 175 18 793 10 nr nr

0223 149 0266 0119 0441 nr nr 067 025 035 039 025 nr nr00001 U 00001 U 00001 U 00001 U 00001 U nr nr 00029 U 00029 U 00029 U 00029 U 00029 U nr nr00054 U 00073 B 00054 U 00211 B 00054 U nr nr 01 U 01 U 01 U 01 U 01 U nr nr

71 122 908 352 833 nr nr 17 166 172 397 34 nr nr00036 U 00073 00036 U 00036 U 00036 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr00025 U 00025 U 00025 U 00025 U 00025 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr114 113 977 609 109 nr nr 728 160 159 154 148 nr nr

00018 B 00017 U 00017 U 00085 U 00017 U nr nr 0025 U 0025 U 0025 U 0025 U 0025 U nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

00028 U 00046 B 00028 U 00062 B 00028 U nr nr 01 U 01 U 01 U 01 U 01 U nr nr00247 0124 00237 00848 0023 nr nr 05 U 05 U 05 U 05 U 05 U nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr 0005 U 0005 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 1 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr 025 U 025 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 025 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 0002 U 0002 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 157nr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 1 Unr nr nr nr nr nr nr nr nr nr nr nr 0025 U 0025 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 U

1 1 1 1 1 1NA NA NANA NA NA NA NANA NA NA

mgL mgLmgL mgL mgL mgL mgLmgL mgL mgL mgL

Not Reported Not ReportedNA NA

mgL mgL

Page 13 of 28

AR103809

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag000005 U 00000011 J 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U

00000029 JB 000005 U 000005 U 00000019 J 00000026 J nr nr nr nr nr nr nr U U000005 U 000005 U 000005 U 00000032 J 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr00001 U 00001 U 00001 U 00000016 J 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00000011 JB 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00000036 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U

0000002 J 00000011 J 00000019 J 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U00000028 J 00001 U 00000014 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U

00001 U 00001 U 00000024 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00000014 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00016 B

000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 00000017 J 000005 U nr nr nr nr nr nr nr 00001 U 00001 U00005 U 00005 U 00005 U 00005 U 00005 U nr nr nr nr nr nr nr 00001 U 00001 U0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr 005 U 005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U0002 U 0002 U 0002 U 0002 U 0002 U nr nr U U U U U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U nr nr0001 U 0001 U 0001 U 0001 U 0001 U nr nr 02 U 05 U 04 U 02 U 04 U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U

U U U U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 608 EPA 6081 1 1 1 1 Not reported Not reported

NA NA NANA NA NA NA NANA NA NA NAmgL mgLmgL mgL mgL mgL mgL mgLmgL mgL mgL mgL

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Page 14 of 28

AR103810

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00193 B 00123 B 0005 U 00086 B 00089 B 00082 B 00169 B 0008 B 0003 JB 00109 B 0005 U 001 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 001 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr 001 U nr nr 0005 U

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

yes yes yes yesyes yes yes yes noyes yes yes yesyes yes yes no noyes yes yes yes yes yes no no

CN only CN only CN only CN only CN onlyCN only CN only CN only CN only no no no noyes yes yes yesyes yes yes no noyes yes no no

yes yes yes yesyes no no no noyes yes yes yesno no no no nono no no no no no no yes - PCB Congeners

EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported 1Not Reported Not Reported Not Reported 1

NA NA NA NA NANA NA NA NA NA NA NAmgL mgL mgL mgL mgLmgL mgL mgL mgL mgL mgL mgL

Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 15 of 28

AR103811

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr 001 U nr nr 001 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 001 Unr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 00073 0002 J 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U nr

Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceededmgL mgLmgL mgL mgL mgLmgL mgL mgL mgLmgL mgLNA NANA NA NA NANA NA NA NANA NA

Not Reported 1Not Reported Not Reported 1 Not ReportedNot Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedEPA 8260EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260

Page 17 of 28

AR103812

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0002 J nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nrnr nr nr nr

001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U nr nr nr001 U nr nr nr

0003 JB nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr

0025 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr

0002 JB nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nrnr nr nr nr

001 U nr nr nr0025 U nr nr nr0025 U nr nr nr0025 U nr nr nr001 U nr nr nr001 U nr nr nr

0025 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr

0025 U nr nr nr00005 J nr nr nr0006 JB nr nr nr001 U nr nr nrnr nr nr nr

0025 U nr nr nr

EPA 625 EPA 625 EPA 625 EPA 625 EPA 625 EPA 625 EPA 625 EPA 625

NAmgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgL

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Page 18 of 28

AR103813

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

001 U nr nr nr

Page 19 of 28

AR103814

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 00018 J nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 02 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 006 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 001 U nr nr nr05 U 05 U 05 U 05 U 05 U 05 U 058 05 U 0208 nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 00001 J nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00006 J nr nr nr198 250 556 651 628 614 127 492 278 nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00011 JB nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00018 J nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 0025 U nr nr nr212 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0141 nr nr nr025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 00013 JB nr nr nr608 626 10 126 1215 120 132 751 582 nr nr nr077 005 U 005 U 005 U 005 U 005 U 087 005 U 0661 nr nr nr

0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 000012 J nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 0005 J nr nr nr292 35 612 897 888 626 103 1 U 258 E nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 0005 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 001 U nr nr nr130 153 152 1084 1120 1085 555 683 156 nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 001 U nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00037 J nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 002 U nr nr nr

Not Reported Not Reported Not Reported Not Reported 1Not Reported Not Reported Not Reported Not ReportedNA NA NA NANA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 20 of 28

AR103815

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U U U U U U 000005 U00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr

nr nr nr nr 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nrnr nr nr nr nr nr nr nr 000005 U nr nr nr

0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00017 B 00015 B 00017 B 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00005 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 0005 U nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0002 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr

nr nr nr nr nr nr nr nr 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag272206046008870

129001260059901800798644

50600

EPA 608 EPA 608 EPA 608 EPA 608EPA 608 EPA 608 EPA 608 EPA 608Not reported Not reported Not reported Not reportedNot reported Not reported Not reported Not reported 1

NA NA NA NA NA NA NA NA NAmgL mgL mgL mgL mgLmgL mgL mgL mgL

EPA 1668ANANApgL

Page 21 of 28

AR103816

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-4 SW-5SW-2 SW-3 SW-A

SW-4 dup

081202081202 081202081202 081202ENSAT ENSAT ENSAT ENSAT ENSAT

Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous AqueousAqueous Aqueous Aqueous

Duplicate

Sauer Dump Sauer Dump Sauer Dump

011107 011107 011107

Sauer Dump

C7A130135016 C7A130135015 C7A130135018 C7A130135017DG-SW01-F (DISSOLVED) DG-SW01-T DG-SW02-F (DISSOLVED) DG-SW02-T

011107

Surface Water Surface Water Surface Water Surface WaterMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr 92 J nr 302nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr3 U nr 16 J nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

SW846 6010B SW846 6010B SW846 6010B SW846 6010B1 1 1 1

ugL ugL ugL ugL

SW846 6010B SW846 6010B SW846 6010B SW846 6010B1 1 1 1

ugL ugL ugL ugL

Page 27 of 28

AR103817

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-4 SW-5SW-2 SW-3 SW-A

SW-4 dup

081202081202 081202081202 081202ENSAT ENSAT ENSAT ENSAT ENSAT

Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous AqueousAqueous Aqueous Aqueous

Duplicate

Sauer Dump Sauer Dump Sauer Dump

011107 011107 011107

Sauer Dump

C7A130135016 C7A130135015 C7A130135018 C7A130135017DG-SW01-F (DISSOLVED) DG-SW01-T DG-SW02-F (DISSOLVED) DG-SW02-T

011107

Surface Water Surface Water Surface Water Surface WaterMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag112 334 10200 65 910 025 012 022 Q 05794 12700 41700 753 4200 06 BQ 062 BQ 062 BQ 26 BQ1490 63000 160000 1240 14700 044 BQ 12 BQ 06 BQ 5 BQ2630 121000 574000 2170 44700 087 BQ 35 BQ 054 QB 15 BQ3390 104000 1110000 2520 96000 13 QB 6 QB 057 BQ 31 BQ3130 95500 908000 1850 77900 12 QB 54 BQ 04 QB 22 BQ1410 42200 388000 755 31000 057 QB 26 B 013 JQB 58 QB424 13000 130000 211 9200 019 Q 085 Q 0024 JQ 13 Q205 2100 28000 78 2110 0085 036 00082 JQ 047178 518 34300 504 2170 0076 032 00064 J 032

13800 454000 3390000 9690 283000 5581 B Q 2097 B Q 31186 B Q 8399 B Q

EPA 1668AEPA 1668A EPA 1668AEPA 1668A EPA 1668ANA NA NA NA NANA NA NA NA NA

pgL pgLpgL pgL pgL

SW846 8082 SW846 8082 SW846 8082 SW846 80821 1 1 1

ugL ugL ugL ugL

EPA-22 1668A EPA-22 1668A EPA-22 1668A EPA-22 1668A1 1 1 1

ngL ngL ngL ngL

Page 28 of 28

AR103818

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0012 B 0065 B 0028 B 1 U 1 U 057 B 031 B 02 B 013 B 027 B nr 0055 B 017 BAcetonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrAcrolein nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrBromoacetone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UBromoform 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UBromomethaneMethyl bromide 001 U 001 U 001 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 001 U 5 U 5 U 018 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Un-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UCarbon Tetrachloride 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UChlorobenzene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0015 0027 UChloroethaneEthyl chloride 001 U 001 U 001 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U2-ChloroethanolEthylene chlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 001 U 50 U 50 U nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UChloromethaneMethyl chloride 001 U 001 U 001 U 25 U 25 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UChloroprene nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr12-Dibromoethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrDichlorodifluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr11-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U12-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U11-Dichloroethene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Ucis-12-Dichloroethene nr nr nr nr nr nr nr nr nr nr nr nr nrtrans-12-Dichloroethene 0005 U 0005 U 0005 U 5 U 5 U nr nr nr nr nr nr nr nr12-Dichloroethene (Total) nr nr nr nr nr 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U13-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Utrans-13-Dichloropropene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUS

noyesno

SedimentSolid

yesyesyes

not reported1

266mgKg

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

yes yes yes yes yes yes yes yes yes no yes yesyes yes yes yesyes yes no no yes no yes yes

yes yes yes yes yes yes yes yes yes no yes yesno no no nono no no no no no no no

yes yes yes yes yes yes yes yes yes yes yes yesno no no nono no no no no no no no

not reported not reported not reported not reported1 1 1 1 1 1 1 1 1

77 79 87 79625 316 78 28 63mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

Page 1 of 25

AR103819

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr nr nr nr nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone 001 U 001 U 001 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U2-Hydroxypropionitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrIsopropylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrp-Isopropyl Toluene nr nr nr nr nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr nr nr nr nr nrMethylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 00081 B 0014 B 0013 B 5 U 25 007 B 014 B 05 B 01 B 017 B nr 0058 B 0084 B1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 001 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrPropiolactone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrPropionitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrPropylamine nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrStyrene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0001 J 0027 U1112-Tetrachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UTetrachloroethene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr111-Trichloroethane 0005 U 0005 U 00056 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U112-Trichloroethane 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UTrichloroethene 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr nr nr nr nr nrTrichlorofluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr123-Trichloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U 001 U 1 U 1 U nr nr nr nr nr nr nr nrVinyl chloride 001 U 001 U 001 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U m+p-Xylenes nr nr nr nr nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 0005 U 10 U 10 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U

mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg87 79 78266 625 316 77 79 28 63

1 1 1 1 1 11 1 1 1not reported not reported not reported not reported not reported

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

Page 2 of 25

AR103820

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 092 U 22 U 22 U nr nr 15 2 042 J 16 U 14 U nr 023 J 019 JAcenaphthylene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 0054 J 011 JAcetophenone nr nr nr nr nr nr nr nr nr nr nr nr nrAnthracene 092 U 22 U 22 U nr nr 14 U 027 J 25 U 16 U 14 U nr 014 J 062 JAtrazine nr nr nr U U nr nr nr nr nr nr nr nrBenzaldehyde nr nr nr nr nr nr nr nr nr nr nr nr nrBenzo(a)Anthracene 092 U 309 22 U nr nr 056 J 14 J 071 J 086 J 12 J nr 11 43Benzo(a)Pyrene 092 U 22 U 22 U nr nr 056 J 056 J 084 J 07 J 12 J nr 046 35Benzo(b)fluoranthene 092 U 22 U 25 nr nr 1 J 11 J 16 J 15 J 22 J nr 083 J 58 JBenzo(ghi)Perylene 092 U 22 U 22 U nr nr 056 J 044 J 25 U 055 J 086 J nr 034 J 26Benzo(k)fluoranthene 092 U 22 U 22 U nr nr 1 J 11 J 16 J 15 J 22 J nr 083 J 58 JBenzylbutylphthalateButylbenzylphthalate 092 U 22 U 22 U nr nr 36 097 J 25 U 16 U 14 U nr 044 U 85 U11-Biphenyl nr nr nr nr nr nr nr nr nr nr nr nr nr4-Bromophenyl-phenylether 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UCaprolactam nr nr nr nr nr nr nr nr nr nr nr nr nrCarbazole nr nr nr nr nr 14 U 16 U 25 U 16 U 14 U nr 0062 J 012 J4-Chloroaniline 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Chloroethoxy)Methane 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Chloroethyl)Ether 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Chloroisopropyl)Ether 092 U 22 U 22 U nr nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U2-Chloronaphthalene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 012 J2-Chlorophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U4-Chlorophenyl-phenylether 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UChrysene 092 U 35 19 J nr nr 056 J 079 J 088 J 078 J 12 J nr 062 37Dibenzo(ah)Anthracene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 025 J nr 02 J 068 JDibenzofuran 092 U 22 U 22 U nr nr 024 J 058 J 25 U 16 U 14 U nr 015 J 011 J12-Dichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U13-Dichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 0049 J 85 U14-Dichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 011 J 85 U33-Dichlorobenzidine 184 U 46 U 46 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U24-Dichlorophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDiethylphthalate 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U24-Dimethylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDimethyl Phthalate 11 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDi-n-Butylphthalate 99 94 11 JB nr nr 057 J 021 J 04 J 023 J 028 J nr 012 J 024 J46-Dinitro-2-Methylphenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U24-Dinitrophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U24-Dinitrotoluene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 019 J 85 U26-Dinitrotoluene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDi-n-Octyl Phthalate 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Ethylhexyl)Phthalate 065 J 15 J 22 U nr nr 15 14 J 16 J 12 J 1 B nr 09 079 JFluoranthene 092 U 3 22 U nr nr 094 J 14 J 11 J 11 J 16 nr 12 52Fluorene 092 U 22 U 22 U nr nr 015 J 021 J 25 U 16 U 14 U nr 024 J 026 JHexachlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UHexachlorobutadiene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UHexachlorocyclopentadiene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UHexachloroethane 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UIndeno(123-cd)Pyrene 092 U 22 U 22 U nr nr 044 J 045 J 044 J 055 J 086 J nr 042 J 24Isophorone 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U2-Methylnaphthalene 25 22 U 22 U nr nr 14 U 017 J 25 U 16 U 14 U nr 0065 J 85 U2-Methylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U4-Methylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UMethylMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene 41 22 U 22 U nr nr 14 U 02 J 043 J 16 U 14 U nr 021 J 013 J2-Nitroaniline 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U3-Nitroaniline 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U4-Nitroaniline 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 UNitrobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U2-Nitrophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U4-Nitrophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 UN-Nitroso-Di-n-Propylamine 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UN-Nitrosodiphenylamine 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U22-Oxybis(1-Chloropropane) nr nr nr nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UPentachlorophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 UPhenanthrene 045 J 15 J 18 J nr nr 045 J 056 J 032 J 042 J 044 J nr 067 22Phenol 43 22 U 22 U nr nr 14 U 018 J 25 U 16 U 15 U nr 044 U 85 UPyrene 092 U 504 24 nr nr 098 J 16 J 12 J 14 J 2 nr 14 J 68124-Trichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U245-Trichlorophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 36 U nr 11 U 21 U246-Trichlorophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U

2Not Reported

mgKg

5 5 1 1 1 1 1 1 1 and 277 79 87 79Not reported Not reported 78 28 63

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Page 3 of 25

AR103821

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 1320 7850 10650 nr nr 8250 7570 7730 6530 7290 nr 3710 5100Antimony 37 U 83 U 38 U 279 25 95 U 187 U 272 U 139 U 114 U nr 44 U 103 UArsenic 7 U 14 U 12 J 98 1 16 129 71 B 53 B 22 nr 27 39 BBarium 122 U 295 U 159 nr nr 264 148 B 761 B 683 B 69 B nr 786 142Beryllium 3 U 8 U 3 U 05 05 U 14 B 16 B 069 B 097 B 13 B nr 035 B 12 BCadmium 3 U 118 364 01 U 01 U 056 U 94 24 B 09 B 11 B nr 026 U 15 BCalcium 1320 J 11320 27120 nr nr 30900 17700 7650 B 42700 4880 nr 49300 6120Chromium 6 U 130 261 26 903 541 193 149 116 125 nr 359 845Chromium III nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 31 U 74 U 31 U nr nr 118 B 147 B 154 B 139 B 138 B nr 57 B 125 BCopper 16 U 105 224 911 15 179 298 153 120 126 nr 533 135Iron 6580 23180 47720 nr nr 62200 59300 32900 23100 24800 nr 26300 18700Lead 353 J 231 J 232 J 279 205 716 436 180 142 150 nr 872 155Magnesium 526 J 3310 J 8040 nr nr 7940 4110 B 3550 B 22500 2920 B nr 12100 2930 BManganese 108 J 311 J 993 J nr nr 468 509 330 265 247 nr 343 153Mercury 02 U 241 091 0325 01 U 083 21 12 13 15 nr 023 11Nickel 25 U 913 291 48 106 583 743 102 839 885 nr 297 648Potassium 3100 U 7400 U 1330 J nr nr 826 B 1020 B 1220 B 1030 B 1000 B nr 437 B 672 BSelenium 4 U 7 U 4 U 005 U 005 U 42 8 75 B 53 26 B nr 27 62Silver 7 U 15 U 7 U 0211 0263 14 U 28 U 4 U 21 U 24 B nr 065 U 51 BSodium 3100 U 2800 J 667 J nr nr 598 B 3130 B 5160 B 3520 B 2860 B nr 289 B 2030 BThallium 7 U 14 U 7 U 12 11 073 U 15 U 21 U 1 U 093 U nr 033 U 077 UTin 31 U 59 U 25 U nr nr nr nr nr nr nr nr nr nrVanadium 31 U 74 U 364 nr nr 585 133 398 B 234 B 246 B nr 249 16 BZinc 396 643 490 280 459 1220 1620 601 443 479 nr 161 467Cyanide 14 U 30 U 14 U nr nr 14 U 3 U 4 U 22 U 18 U nr 067 U 16 U

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr

Not Reported282

mgKg

Not Reported Not Reported 1 1 1 1 1 1 1652 839 884 775668 278 323 871 725 256 691

mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Page 4 of 25

AR103822

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 0023 U 009 U 4855 U U U 0036 U 048 B 00014 J 00017 J 00036 J 000064 J 00024 U 00041 Jalpha-BHC 0023 U 009 U 4855 U U U 0036 U 0016 U 0013 U 00081 U 00077 U 00039 U 00024 U 000032 Jbeta-BHC 0023 U 009 U 4855 U U U 0036 U 11 0013 U 00081 U 00077 U 00039 U 00024 U 00045 Udelta-BHC 0023 U 009 U 4855 U U U 0036 U 0023 J 000053 J 00012 J 00077 U 00039 U 00024 U 00045 Ugamma-BHC (Lindane) 0023 U 009 U 4855 U U U 0036 U 0016 U 000083 J 00081 U 00077 U 00039 U 00024 U 00045 Ualpha-Chlordane nr nr nr U U 0036 U 0016 U 0013 U 00081 U 00077 U 0015 00024 U 00045 Ugamma-Chlordane nr nr nr U U 0036 U 0056 J 0013 U 00024 JB 00077 U 000094 J 00024 U 00078 BChlordane total 0225 U 09 U 4855 U U U nr nr nr nr nr nr nr nr44-DDD 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0016 U 0015 U 00075 U 000091 J 00088 U44-DDE 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 00045 J 0007 J 00012 J 00046 U 00088 U44-DDT 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0016 U 0015 U 00075 U 00046 U 00088 UDieldrin 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0003 J 0015 U 00044 J 00046 U 00048 JEndosulfan I 0023 U 009 U 4855 U U U 0036 U 038 0013 U 00024 J 00077 U 00039 U 00024 U 00012 JEndosulfan II 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 00099 JB 0015 U 00075 U 00046 U 00088 UEndosulfan sulfate 0045 U 018 U 971 U U U 007 U 001 J 0025 U 0016 U 0016 U 00075 U 00046 U 00039 JEndrin 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0002 J 0015 U 00075 U 00046 U 00088 UEndrin aldehyde 0045 U 018 U 971 U U U 007 U 013 J 0025 U 0016 U 0015 U 00075 U 00046 U 00088 UEndrin ketone 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0016 U 0015 U 00075 U 00046 U 00088 UHeptachlor 0023 U 009 U 4855 U U U 0036 U 0016 U 0013 U 00081 U 00077 U 00039 U 00024 U 00045 UHeptachlor epoxide 0023 U 009 U 4855 U U U 0036 U 0016 U 0013 U 00081 U 00077 U 00039 U 000044 J 00044 JMethoxychlor 0045 U 018 U 971 U U U 036 U 016 U 013 U 0081 U 0077 U 0039 U 0024 U 024Toxaphene 045 U 18 U 971 U U U 36 U 16 U 13 U 081 U 077 U 039 U 024 U 045 UAroclor-1016 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1221 02 U 09 U 486 U U U 14 U 06 U 05 U 03 U 03 U 02 U 01 U 02 UAroclor-1232 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1242 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1248 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1254 045 U 2948 267899 18 1 11 15 028 016 U 018 0075 U 042 0088 UAroclor-1260 05 U 18 U 971 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UTotal PCBs 29 2679 180 10 110 150 03 02 04

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

5Not reported

mgKg

Not Reported Not Reported10 1000 5 200 1 1 1 1 1 1

77 37 87 79Not Reported Not Reported 78 56 28 63mgKgmgKg mgKg mgKg mgKgmgKg mgKg

Incomplete lab report No Other Pesticides or PCBs detected

Incomplete lab report No Other Pesticides or PCBs detected

mgKg mgKg mgKg

Page 5 of 25

AR103823

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag042 B 0091 U 0024 U 015 B 0067 B 032 B 0031 U 055 B 0023 B nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0052 J 0091 U 0024 U 0047 0016 U 0043 0031 U 0084 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 001 J 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

yes yes yes yesyes no no no noyes yes yes yes noyes yes yes yes yes no no noyes yes yes yes no no

yes yes yes yesyes yes yes yes yesyes yes yes yes yesno no no no no no no nono no no no no no

yes yes yes yesyes PCBs PCBs PCBs PCBsyes yes yes yes PCBsno no no no no no no nono no no no no no

1 1 1 11 1 1 1 188 89 58 73 3037 75 68 78

mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg

Page 6 of 25

AR103824

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

013 B 0097 B 0033 B 004 B 0029 B 024 B 0068 B 012 B 0026 B nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

mgKg30

mgKg mgKg mgKg37 75 68 78

11 1 1 11 1 188 89 58 731

mgKg mgKg mgKgmgKg mgKg

Page 7 of 25

AR103825

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag28 U 29 U 08 U 034 J 051 U 14 U 1 U 13 J 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 13 0057 J 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 82 033 J 027 J 1 U 15 U 0061 J nr nr nr nr nr28 U 29 U 08 U 12 029 J 018 J 1 U 15 U 047 U nr nr nr nr nr047 J 29 U 0094 J 17 J 05 J 03 J 016 J 025 J 047 U nr nr nr nr nr28 U 29 U 08 U 65 024 J 015 J 1 U 15 U 047 U nr nr nr nr nr

047 J 29 U 0094 J 17 J 05 J 03 J 016 J 025 J 047 U nr nr nr nr nr047 J 052 J 018 J 12 U 033 J 019 J 017 J 24 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 021 J 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 76 036 J 017 J 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 26 0081 J 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 013 J 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr051 J 036 J 011 J 029 J 007 J 14 U 012 J 037 J 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 048 J 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr085 J 094 J 0089 J 45 038 J 03 J 017 J 098 J 013 JB nr nr nr nr nr029 J 29 U 08 U 88 034 J 015 J 012 J 025 J 0083 J nr nr nr nr nr28 U 29 U 08 U 03 J 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 94 022 J 014 J 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 038 J 031 J 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 12 U 0056 J 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 73 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 34 024 J 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 3 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr045 J 04 J 08 U 96 049 J 021 J 014 J 03 J 0076 J nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr

1 1 1 and 2 11 1 1 1 188 89 58 73 3037 75 68 78

mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg

Page 8 of 25

AR103826

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag10000 12300 10100 14600 4860 13600 7020 9930 4250 4950 5485 51605 9971 4162248 U 256 U 85 U 145 U 116 B 138 U 83 U 162 U 42 U 10 U 10 U 10 U 10 U 10 U77 B 5 B 5 B 135 107 127 4 B 175 2 B 05 U 34 63 93 52

895 B 128 B 511 B 172 173 125 B 636 B 477 185 B 665 392 523 12 6928 B 35 B 14 B 3 B 041 B 2 B 078 B 13 B 058 B 025 U 025 U 025 U 025 U 023731 B 33 B 05 U 26 B 35 19 B 049 U 45 B 025 U 256 251 387 97 11

8250 5980 B 2890 12300 26800 7450 1980 B 29200 365 B 41085 15657 12506 14912 1037992 964 199 384 145 706 164 772 199 96 28 325 11 22nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

307 B 643 B 131 B 509 74 B 25 B 94 B 14 B 35 B 19 42 36 39 44478 106 497 225 696 146 27 428 105 176 347 865 74 38

28200 18400 12900 24000 46400 33900 13000 48700 8130 10765 12170 15649 38012 1418288 178 129 394 839 364 683 1060 165 694 466 417 264 276

5080 B 4140 B 1550 B 5120 6220 4660 861 B 8820 791 B 8394 5175 7521 4738 464400 291 195 731 641 258 166 331 618 169 339 361 448 52215 088 045 16 22 088 032 15 021 02 U 031 12 U 029 02 U846 114 162 B 504 545 511 122 B 819 117 72 217 183 76 18

1260 B 1080 B 581 B 788 B 401 B 1110 B 330 B 1180 B 330 B 641 572 344 356 333126 56 27 51 161 191 46 55 12 B 125 05 U 24 089 05 U55 B 38 U 13 U 21 U 4 2 U 12 U 37 B 062 U 05 U 085 075 16 05 U

4690 B 6770 833 B 969 B 169 B 249 B 161 B 651 B 496 B 142 379 215 358 1702 U 2 U 069 U 11 U 036 U 095 U 065 U 13 U 032 U 10 U 10 U 10 U 10 U 10 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr34 B 392 B 251 B 407 B 357 573 23 B 104 114 B 94 76 92 83 93874 934 182 851 1270 1050 147 2360 538 160 159 354 902 2244 U 4 U 13 U 21 U 075 U 19 U 12 U 25 U 065 U nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

1 1 1 11 Not Reported1 1 1 1876 879 633 774 231 Not Reported357 758 591 815

mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKgmgKg

Page 9 of 25

AR103827

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00073 J 0015 U 0004 U 00062 U 0016 J 00012 J 000051 J 0015 000042 J nr nr nr nr nr0014 U 000035 J 000021 J 00062 U 0053 U 000028 J 00053 U 00077 U 000012 J nr nr nr nr nr0014 U 0015 U 000092 J 0027 J 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr0014 U 0015 U 00018 J 000075 J 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr

00027 J 0015 U 0004 U 00062 U 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr0014 U 0015 U 0004 U 0078 J 0053 U 00051 J 000069 JB 00077 U 00024 U nr nr nr nr nr

00062 JB 00038 J 0004 U 00062 U 0017 JB 0021 00064 B 00077 U 000032 J nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 04

0027 U 00059 J 00078 U 0012 U 01 U 0013 U 001 U 0015 U 00047 U nr nr nr nr nr0027 U 00098 J 00027 J 0012 U 01 U 00027 J 001 U 0015 U 000066 J nr nr nr nr nr0027 U 003 U 00078 U 0012 U 28 0013 U 001 U 0015 U 00047 U nr nr nr nr nr0027 U 00012 J 00078 U 0012 U 00078 J 0013 U 000035 J 0015 U 0000077 J nr nr nr nr nr0014 U 0015 U 0004 U 00062 U 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr0027 U 003 U 00078 U 0027 J 01 U 00028 J 00065 JB 0015 U 000046 J nr nr nr nr nr0027 U 00053 J 00046 J 0012 U 0061 J 00093 J 001 U 00045 J 000033 J nr nr nr nr nr00012 J 003 U 00078 U 0012 U 00078 J 0013 U 000035 J 0015 U 00047 U nr nr nr nr nr0027 U 00016 J 00078 U 023 J 027 00022 J 001 U 0015 U 00047 U nr nr nr nr nr0027 U 003 U 00078 U 0012 U 001 U 0013 U 001 U 00072 J 00047 U nr nr nr nr nr0014 U 00013 JB 000015 JB 00062 U 0053 U 00068 U 0011 B 00077 U 000029 JB nr nr nr nr nr0014 U 0015 U 0004 U 0021 J 0053 U 000081 J 00053 U 00077 U 00024 U nr nr nr nr nr014 U 00016 J 00012 J 0002 J 008 J 0068 U 0053 U 0016 J 0024 U nr nr nr nr nr14 U 15 U 04 U 062 U 53 U 068 U 053 U 077 U 024 U nr nr nr nr nr03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U06 U 06 U 02 U 03 U 21 U 03 U 02 U 03 U 01 U03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U027 U 03 U 022 31 1 U 014 01 U 11 0047 U03 03 U 01 U 48 56 02 J 01 U 02 U 00 U 01 01 03 03 01 03 02 79 56 03 11 01 01 03 03 01

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

1 1 1 20 and 2001 1 1 1 188 89 58 73 3037 75 68 78

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

mgKg mgKg

Page 10 of 25

AR103828

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 04075 U 04028 U 0319 U 0283 U 033 U 02588 U 03155 U 04435 U 011 B nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 01725 01576 01096 01115 01402 01112 01384 01166 0009 J nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr 0007 J nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

yes yes yes yesno yes yes no no noyes yes yes noyes yes yes yesno yes no yes yes yesyes yes yes yes

yes yes yes yesno yes yes yes yes yesyes yes yes nono no no nono no no no no nono no no no

yes yes yes yesPCBs only yes yes yes yes yesyes yes yes PCBs onlyno no no nono no no no no nono no no no

EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported Not Reported 1

NA NA NA NA NA 79mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 11 of 25

AR103829

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0015 JB nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 04454 04694 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 01522 01006 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 0163 U 01611 U 01276 U 01132 U 0132 U 01035 U 01261 U 01774 U 0048 U nr nr nr nr

79NA NA NANA NANot Reported Not Reported 1Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported

EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 12 of 25

AR103830

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 012 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr 22 U nr 033 U 033 U 033 Unr U U 22 U nr nr nr nrnr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 013 J nr 033 U 033 U 033 Unr U U 011 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 018 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U nr nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 014 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U nr nr nr nr nrnr U U nr nr nr nr nrnr U U nr nr nr nr nrnr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 078 U 078 U 078 Unr U U 22 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 13 nr 033 U 033 U 033 Unr U U 014 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr B B 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U nr nr nr nr nrnr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 083 U 083 U 083 Unr U U 55 U nr 083 U 083 U 083 Unr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr nr nr nrnr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 015 J nr 033 U 033 U 033 Unr U U nr nr nr nr nrnr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 U

EPA 608 EPA 625 EPA 625 EPA 625EPA 608 EPA 8070 EPA 8070 EPA 8070EPA 625 EPA 625 EPA 625not reported 1 1 11

NA 31 21 5685mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Page 13 of 25

AR103831

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 3936 1898 5071 4818 4394 3343 7962 6474 9100 nr 7246 9494 11591nr 25 U 25 U 25 U 25 U 25 U 25 U 26 25 U 114 J nr 25 U 25 U 25 Unr 357 14 125 U 125 U 125 U 125 U 7943 136 163 nr 25 U 39 2 Unr 71 262 269 26 264 429 358 48 249 J nr 23 25 34nr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 049 J nr 1 U 1 U 1 Unr 54 5 U 5 U 5 U 5 U 5 U 41 5 U 081 JB nr 1 U 1 U 1 Unr 5535 1079 1270 1650 1663 4254 8753 890 12100 nr 72 10 73nr 255 143 441 343 337 271 552 783 965 J nr 19 18 34nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 5 U 5 U 544 532 508 515 733 584 148 J nr 46 41 89nr 67 285 355 257 295 34 281 489 169 J nr 94 71 20nr 18970 5225 446 4435 444 4179 103796 543 47300 nr 11739 12658 17045nr 186 265 448 324 338 427 109 564 182 nr 13 10 27nr 1979 713 1328 1236 1372 1717 2926 1392 4940 J nr 1261 1152 2727nr 202 118 1164 1282 1266 127 361 1926 1410 nr 112 59 341nr 132 0198 025 0211 0254 0223 U 0219 0369 086 nr 01 U 01 U 01 Unr 17 824 277 209 209 19 493 343 657 J nr 11 87 30nr 386 612 706 675 557 403 229 831 987 J nr 609 633 1795nr 261 125 U 125 U 125 U 125 U 125 U 611 125 U 74 J nr 5 U 5 U 5 Unr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 33 J nr 2 U 2 U 2 Unr 1212 935 1130 919 975 719 1490 1081 2890 J nr 1739 1519 2159nr 125 U 125 U 125 U 125 U 125 U 125 U 125 U 125 U 2 U nr 2 U 2 U 2 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 185 833 1294 1098 106 879 117 1389 672 J nr 16 22 20nr 308 745 1492 1186 1778 1163 531 194 655 nr 42 23 107nr 0072 U 002 U 0051 U 0089 U 0071 U 0082 U 003 U 0062 U 05 U nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 2008 EPA 2008 EPA 2008Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported 1 1 1Not Reported Not Reported Not Reported

21 56Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported 31mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg

Page 14 of 25

AR103832

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0017 J nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr nr nr nr nr nr nr nr nr 0011 U nr 0004 U 0004 U 0004 Unr nr nr nr nr nr nr nr nr 0011 U nr 0004 U 0004 U 0004 Unr 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U nr nr nr nr nrnr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 00063 J nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 001 U 002 U 002 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 00097 J nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 011 U nr 0004 U 0004 U 0004 Unr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 11 U nr 01 U 01 U 01 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 05 U 01 U 00 U 00 U 00 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U01 U nr nr nr nr nr nr nr nr 02 U 01 U 00 U 00 U 00 U

0334 79 144 025 U 21 025 U 025 U 2 025 U 2 0401 0013 U 0013 U 0013 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U03 79 144 21 20 20 04

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 8081 EPA 8081 EPA 8081 EPA 8081EPA 8081 EPA 80818082 EPA 80818082 EPA 80818082EPA 8081 EPA 8081 EPA 8081Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported 1 1 1Not Reported Not Reported 1

Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported Not Reported NA 31 21 56mgKg mgKg mgKg mgKg mgL mgKg mgKg mgKgmgKg mgKg mgKg mgKg

Page 15 of 25

AR103833

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSDMT-8 (0-20) SDMT-8 (20-30)SDMT-7 (0-20) SDMT-7 (20-30)SDMT-2 (20-30) SDMT-3 (0-4) SDMT-3 (4-10) SDMT-4 (0-20) SDMT-4 (20-30) SDMT-5 (0-20) SDMT-5 (20-30) SDMT-9 (0-20)SDMT-6 (0-4) SDMT-6 (4-7)

121801 121901 121901 121801121801 121801 121801 121801 121801 121901121801 121901 121901 121801ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT

Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment SedimentSolid Solid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

033 U 033 U 033 U 033 U 033 U 033 U 022 J 0116 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 022 J 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 0184 J 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 0186 J 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 026 J 013 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 044 J 0256 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 0154 J 0147 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 042 J 0256 J 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U

EPA 8070 EPA 8070 EPA 8070 EPA 8070EPA 8070 EPA 8070 EPA 8070 EPA 8070 EPA 8070 EPA 8070EPA 8070 EPA 8070 EPA 8070 EPA 80701 1 1 1 11 1 1 1 11 1 1 1

22 57 50 5751 23 23 62 50 5425 64 52 57mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg

Page 18 of 25

AR103834

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSDMT-8 (0-20) SDMT-8 (20-30)SDMT-7 (0-20) SDMT-7 (20-30)SDMT-2 (20-30) SDMT-3 (0-4) SDMT-3 (4-10) SDMT-4 (0-20) SDMT-4 (20-30) SDMT-5 (0-20) SDMT-5 (20-30) SDMT-9 (0-20)SDMT-6 (0-4) SDMT-6 (4-7)

121801 121901 121901 121801121801 121801 121801 121801 121801 121901121801 121901 121901 121801ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT

Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment SedimentSolid Solid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag6327 7922 9610 6053 4231 9070 5200 4186 3333 11111 12500 6977 8800 760925 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 5 U 25 U2 U 2 U 29 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 4 U 2 U

17 18 19 42 12 23 54 16 13 33 27 35 24 331 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U 1 U1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U 1 U78 10 39 221 33 114 130 172 117 100 27 212 32 20413 16 17 68 85 17 24 10 12 31 19 53 15 39nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr53 36 42 10 36 63 82 79 55 10 79 81 5 U 7210 65 66 55 33 13 34 65 10 24 10 42 5 U 37

11837 12987 19481 16316 16667 16047 12800 8372 6800 20556 13750 13256 22000 1434884 91 83 68 46 12 60 84 11 23 88 53 5 U 41

1755 1078 1130 2526 1038 2186 1480 1907 1467 3056 2708 2326 2800 2391198 69 66 250 113 212 184 149 99 242 292 202 196 21701 U 01 U 01 U 01 U 01 U 01 U 08 01 U 01 U 01 U 01 U 01 U 01 U 01 U10 77 84 37 58 14 26 84 91 20 15 37 12 28

939 701 727 1105 500 1233 760 814 627 1694 1958 1093 2000 12835 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 4 U 2 U

2449 1091 1208 4474 1282 3023 2200 4186 2400 4167 2500 3256 2600 28262 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 4 U 2 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr11 19 22 12 83 13 9 91 76 28 23 16 24 1831 26 27 258 15 42 170 26 36 83 50 195 30 130nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 2008 EPA 2008 EPA 2008 EPA 2008EPA 2008 EPA 2008 EPA 2008 EPA 2008 EPA 2008 EPA 2008EPA 2008 EPA 2008 EPA 2008 EPA 20081 1 1 1 11 1 1 1 11 1 1 1

51 23 23 62 22 57 50 57 57 50 5425 64 52mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg

Page 19 of 25

AR103835

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSDMT-8 (0-20) SDMT-8 (20-30)SDMT-7 (0-20) SDMT-7 (20-30)SDMT-2 (20-30) SDMT-3 (0-4) SDMT-3 (4-10) SDMT-4 (0-20) SDMT-4 (20-30) SDMT-5 (0-20) SDMT-5 (20-30) SDMT-9 (0-20)SDMT-6 (0-4) SDMT-6 (4-7)

121801 121901 121901 121801121801 121801 121801 121801 121801 121901121801 121901 121901 121801ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT

Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment SedimentSolid Solid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0005 U 0005 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U

nr nr nr nr nr nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 002 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U002 U 002 U 002 U 002 U 002 U 002 U 0004 U 002 U 002 U 002 U 002 U 002 U 002 U 002 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U

0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082EPA 80818082 EPA 80818082 EPA 80818082 EPA 808180821 1 1 1 11 1 1 1 11 1 1 1

57 25 64 5251 23 23 62 22 57 57 50 5450mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg

Page 20 of 25

AR103836

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer DumpSauer Dump Sauer DumpSDMT-A (0-4) SDMT-B (20-30)SDMT-9 (20-30)

121901 121801 121801ENSAT ENSAT ENSAT

Sediment Sediment SedimentSolid Solid Solid

Dup Of SDMT-6 Dup Of SDMT-4

DG-SD03-05 DG-SD04-05 DG-SD05-05C7A110284003 C7A130138002 C7A130138001

010907

Solid

010907 010907

DG-SD01-05 DG-SD02-05C7A110284001 C7A110284002

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpDG-SD07-05 DG-SD08-05 DG-SD09-05

C7A130138003 C7A130138005 C7A130138006

Sauer Dump

C7A130138007DG-SD06-05

011007 011007 011007 011107 011107 011207Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Sediment Sediment Sediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nrnr nr nrnr nr nr

033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U078 U 078 U 078 U083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

033 U 033 U 033 U083 U 083 U 083 U083 U 083 U 083 U083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 U083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

083 U 083 U 083 U033 U 033 U 033 U

EPA 8070 EPA 8070 EPA 80701 1 162 32 26

mgKg mgKg mgKg

Page 23 of 25

AR103837

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer DumpSauer Dump Sauer DumpSDMT-A (0-4) SDMT-B (20-30)SDMT-9 (20-30)

121901 121801 121801ENSAT ENSAT ENSAT

Sediment Sediment SedimentSolid Solid Solid

Dup Of SDMT-6 Dup Of SDMT-4

DG-SD03-05 DG-SD04-05 DG-SD05-05C7A110284003 C7A130138002 C7A130138001

010907

Solid

010907 010907

DG-SD01-05 DG-SD02-05C7A110284001 C7A110284002

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpDG-SD07-05 DG-SD08-05 DG-SD09-05

C7A130138003 C7A130138005 C7A130138006

Sauer Dump

C7A130138007DG-SD06-05

011007 011007 011007 011107 011107 011207Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Sediment Sediment Sediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag10263 2059 7973 nr nr nr nr nr nr nr nr nr

5 U 25 U 25 U nr nr nr nr nr nr nr nr nr4 U 2 U 28 nr nr nr nr nr nr nr nr nr26 15 15 nr nr nr nr nr nr nr nr nr2 U 1 U 1 U nr nr nr nr nr nr nr nr nr2 U 1 U 1 U nr nr nr nr nr nr nr nr nr

218 46 22 nr nr nr nr nr nr nr nr nr21 18 12 nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr5 U 25 U 92 nr nr nr nr nr nr nr nr nr5 U 19 15 nr nr nr nr nr nr nr nr nr

15263 4265 37838 nr nr nr nr nr nr nr nr nr5 U 22 6 75 471 370 488 4800 595 150 101 301

3158 691 1216 nr nr nr nr nr nr nr nr nr221 84 203 nr nr nr nr nr nr nr nr nr01 U 01 U 01 U nr nr nr nr nr nr nr nr nr16 87 15 nr nr nr nr nr nr nr nr nr

1789 338 770 nr nr nr nr nr nr nr nr nr5 U 5 U 5 U nr nr nr nr nr nr nr nr nr4 U 2 U 2 U nr nr nr nr nr nr nr nr nr

3158 1618 1622 nr nr nr nr nr nr nr nr nr2 U 2 U 2 U nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr24 5 14 nr nr nr nr nr nr nr nr nr42 65 42 nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flagnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nr

EPA 2008 EPA 2008 EPA 20081 1 1

3262 26mgKg mgKg mgKg

SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B5 1 1 1 1

SW846 6010B SW846 6010B SW846 6010B SW846 6010B1 1 1 1

mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg

Page 24 of 25

AR103838

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer DumpSauer Dump Sauer DumpSDMT-A (0-4) SDMT-B (20-30)SDMT-9 (20-30)

121901 121801 121801ENSAT ENSAT ENSAT

Sediment Sediment SedimentSolid Solid Solid

Dup Of SDMT-6 Dup Of SDMT-4

DG-SD03-05 DG-SD04-05 DG-SD05-05C7A110284003 C7A130138002 C7A130138001

010907

Solid

010907 010907

DG-SD01-05 DG-SD02-05C7A110284001 C7A110284002

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpDG-SD07-05 DG-SD08-05 DG-SD09-05

C7A130138003 C7A130138005 C7A130138006

Sauer Dump

C7A130138007DG-SD06-05

011007 011007 011007 011107 011107 011207Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Sediment Sediment Sediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr002 U 002 U 002 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr01 U 01 U 01 U nr nr nr nr nr nr nr nr nr00 U 00 U 00 U 0048 U 0031 U 13 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U

0013 U 0013 U 0013 U 0048 U 0031 U 091 33 058 15 11 0047 U 0065 U00 U 00 U 00 U 0048 U 0086 14 04 U 051 1 UJ 0075 U 0047 U 0032 J

0048 U 0086 361 33 109 15 11 0032

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00000026 BJ 000026 B 0029 B 00096 U 00025 BJQ 0003 QBJ 000071 QBJ 0000012 QBJ 000014 B0000052 QBJ 00049 BQ 062 BQ 00034 QBJ 0015 QB 017 QB 00079 QB 0000069 QBJ 00011 QB0000078 Q B J 0017 BQ 22 B 0012 QBJ 0069 BQ 099 BQ 0039 BQ 0000058 BJQ 00041 BQ0000097 BJQ 0066 BQ 23 BQ 031 QB 023 BQ 6 BQ 016 BQ 0000066 BJQ 0012 QB0000092 BJQ 013 QB 13 QB 14 BQ 054 BQ 18 BQ 038 QB 0000077 Q B J 0023 QB0000076 QBJ 0084 BQ 18 QB 09 BQ 041 BQ 11 BQ 028 BQ 0000064 Q B J 0018 QB0000021 BJQ 0024 BQ 12 BQ 016 QB 016 BQ 21 BQ 007 B 0000027 BJQ 0006 BQ0000029 U 00063 QB 035 B 0034 QB 0059 B 038 QB 0017 QB 0000028 U 00017 B0000029 U 00014 005 00073 J 0011 008 00057 0000028 U 0000680000029 U 000026 00073 Q 00029 QJ 0011 0012 J 0004 0000028 U 000052

00004186 033412 98563 28296 15075 38735 096431 0000373 006724

EPA 80818082 EPA 80818082 EPA 808180821 1 1

2662 32mgKg mgKg mgKg

SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 80820 5 0 0 0

SW846 8082 SW846 8082 SW846 8082 SW846 80820 0 0 2

mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkg

EPA-22 1668A EPA-22 1668AEPA-22 1668A EPA-22 1668A EPA-22 1668A EPA-22 1668A10 10

EPA-22 1668A10 10 10 1 1

EPA-22 1668A EPA-22 1668A

mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg

1 5

mgkg

Page 25 of 25

AR103839

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved Metals

PCBsPesticides

Other Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 00104 B 0025 U 0025 U 00109 B 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UAcetonitrile nr nr nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 0005 U 00041 J 0005 U 00042 J 0005 U 0001 U 0001 U 0001 U 0001 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nr nr nr nrBromobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrBromochloromethaneChlorobromomethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UBromoform 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UBromomethaneMethyl bromide 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U2-Butanone (Methyl Ethyl Ketone) nr nr nr nr 001 U 001 U 001 U 001 U 005 U 005 U 005 U 005 Un-Butylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrsec-Butylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrtert-Butylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide nr nr nr nr 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 UCarbon Tetrachloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UChlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0003 0001 UChloroethaneEthyl chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0006 0001 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UChloromethaneMethyl chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UChloroprene nr nr nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr4-Chlorotoluene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 UCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U12-Dibromoethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U12-Dichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U13-Dichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U14-Dichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UDichlorodifluoromethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U11-Dichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U12-Dichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U11-Dichloroethene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Ucis-12-Dichloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Utrans-12-Dichloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U12-Dichloroethene (Total) nr nr nr nr nr nr nr nr nr nr nr nrDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U13-Dichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr22-Dichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloropropene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrcis-13-Dichloropropene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Utrans-13-Dichloropropene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

yes yes yes yes yes yes yes yes yes yes yesno no no noyes yes yes no yes yes yes yesno no no noCN only CN only CN only no yes yes yes yesno no no noyes yes yes no yes yes yes yes

no no no noyes yes yes no yes yes yes yesno no no nono no no no no no no no

EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 82601 1 1 1Not Reported Not Reported Not Reported Not Reported

NA NA NA NANA NA NA NA NA NA NA NAmgL mgL mgL mgLmgL mgL mgL mgL mgL mgL mgL mgL

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 1 of 15

AR103840

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 0005 U 00049 J 00039 J 00049 J 0005 U 0001 U 0001 U 0001 U 0001 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nr nr nr nrIsopropylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0002 J 0005 U 0005 U 0001 U 0001 U 0003 0001 Up-Isopropyl Toluene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 UMethylcyclohexane nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 U1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 001 U 001 U 001 UNaphthalene 0005 U 0005 U 0005 U 0005 U 002 00049 J 0019 0005 U nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nr nr nr nrn-Propylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrStyrene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U1112-Tetrachloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UTetrachloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 0005 U 0005 U 0005 U 0013 00031 J 0013 0005 U 0001 U 0001 U 0001 U 0001 U123-Trichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr124-Trichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U111-Trichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U112-Trichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UTrichloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 UTrichlorofluoromethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U123-Trichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene 0005 U 0005 U 0005 U 0005 U 0011 00039 J 0012 0005 U nr nr nr nr135-Trimethylbenzene 0005 U 0005 U 0005 U 0005 U 00069 0005 U 00073 0005 U nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate nr nr nr nr nr nr nr nr nr nr nr nrVinyl chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U m+p-Xylenes nr nr nr nr 0021 00047 J 0021 0005 U nr nr nr nro-Xylene nr nr nr nr 0012 00026 J 0012 0005 U nr nr nr nrXylenes (Total) 001 U 001 U 001 U 001 U nr nr nr nr 0015 U 0015 U 0015 U 0015 U

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

EPA 8260 EPA 8260 EPA 8260Not Reported

EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260Not Reported Not Reported Not Reported 1 1 1 1

NA NA NA NA NA NA NA NA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 2 of 15

AR103841

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 001 U 0001 J 001 U 001 UAcenaphthylene 001 U 001 U 001 U 001 UAcetophenone 001 U 001 U 001 U 001 UAnthracene 001 U 001 U 001 U 001 UAtrazine 001 U 001 U 001 U 001 UBenzaldehyde nr nr nr nrBenzo(a)Anthracene 001 U 001 U 001 U 001 UBenzo(a)Pyrene 001 U 001 U 001 U 001 UBenzo(b)fluoranthene 001 U 001 U 001 U 001 UBenzo(ghi)Perylene 001 U 001 U 001 U 001 UBenzo(k)fluoranthene 001 U 001 U 001 U 001 UBenzylbutylphthalateButylbenzylphthalate 001 U 001 U 001 U 001 U11-Biphenyl 001 U 001 U 001 U 001 U4-Bromophenyl-phenylether 001 U 001 U 001 U 001 UCaprolactam 001 U 001 U 001 U 001 UCarbazole 001 U 001 U 001 U 001 U4-Chloroaniline 001 U 001 U 001 U 001 Ubis(2-Chloroethoxy)Methane 001 U 001 U 001 U 001 Ubis(2-Chloroethyl)Ether 001 U 001 U 001 U 001 Ubis(2-Chloroisopropyl)Ether 001 U 001 U 001 U 001 U4-Chloro-3-Methylphenol 001 U 001 U 001 U 001 U2-Chloronaphthalene 001 U 001 U 001 U 001 U2-Chlorophenol 001 U 001 U 001 U 001 U4-Chlorophenyl-phenylether 001 U 001 U 001 U 001 UChrysene 001 U 001 U 001 U 001 UDibenzo(ah)Anthracene 001 U 001 U 001 U 001 UDibenzofuran 001 U 001 U 001 U 001 U12-Dichlorobenzene nr nr nr nr13-Dichlorobenzene nr nr nr nr14-Dichlorobenzene nr nr nr nr33-Dichlorobenzidine 001 U 001 U 001 U 001 U24-Dichlorophenol 001 U 001 U 001 U 001 UDiethylphthalate 004442 B 001 U 001 U 001 U 001 U24-Dimethylphenol 001 U 001 U 001 U 001 UDimethyl Phthalate 001 U 001 U 001 U 001 UDi-n-Butylphthalate 001 U 001 U 001 U 001 U46-Dinitro-2-Methylphenol 0025 U 0025 U 0025 U 0025 U24-Dinitrophenol 0025 U 0025 U 0025 U 0025 U24-Dinitrotoluene 001 U 001 U 001 U 001 U26-Dinitrotoluene 001 U 001 U 001 U 001 UDi-n-Octyl Phthalate 001 U 001 U 001 U 001 Ubis(2-Ethylhexyl)Phthalate 001443 001 U 001 U 001 U 001 UFluoranthene 001 U 001 U 001 U 001 UFluorene 001 U 001 U 001 U 001 UHexachlorobenzene 001 U 001 U 001 U 001 UHexachlorobutadiene 001 U 001 U 001 U 001 UHexachlorocyclopentadiene 001 U 001 U 001 U 001 UHexachloroethane 001 U 001 U 001 U 001 UIndeno(123-cd)Pyrene 001 U 001 U 001 U 001 UIsophorone 001 U 001 U 001 U 001 U2-Methylnaphthalene 001 U 0003 J 001 U 001 U2-Methylphenol 001 U 001 U 001 U 001 U4-Methylphenol 001 U 001 U 001 U 001 UMethylMercury nr nr nr nrNaphthalene 001 U 0004 J 001 U 001 U2-Nitroaniline 001 U 001 U 001 U 001 U3-Nitroaniline 0025 U 0025 U 0025 U 0025 U4-Nitroaniline 001 U 001 U 001 U 001 UNitrobenzene 001 U 001 U 001 U 001 U2-Nitrophenol 001 U 001 U 001 U 001 U4-Nitrophenol 0025 U 0025 U 0025 U 0025 UN-Nitroso-Di-n-Propylamine 001 U 001 U 001 U 001 UN-Nitrosodiphenylamine 001 U 001 U 001 U 001 U22-Oxybis(1-Chloropropane) nr nr nr nrPentachlorophenol 0025 U 0025 U 0025 U 0025 UPhenanthrene 001 U 001 U 001 U 001 UPhenol 001 U 001 U 001 U 001 UPyrene 001 U 001 U 001 U 001 U124-Trichlorobenzene nr nr nr nr245-Trichlorophenol 0025 U 0025 U 0025 U 0025 U246-Trichlorophenol 001 U 001 U 001 U 001 U

EPA 625 EPA 625 EPA 625 EPA 8270 EPA 8270 EPA 8270 EPA 8270

NA NA NA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL

Incomplete lab report No other SVOCs detected

Incomplete lab report No other SVOCs detected

Incomplete lab report No SVOCs detected

Page 3 of 15

AR103842

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr 016 021 018 033Antimony nr nr nr nr nr nr nr nr 0006 U 0006 U 0006 U 0006 UArsenic nr nr nr nr nr nr nr nr 0035 0025 U 0025 U 0064Barium nr nr nr nr nr nr nr nr 053 054 063 024Beryllium nr nr nr nr nr nr nr nr 0004 U 0004 U 0004 U 0004 UCadmium nr nr nr nr nr nr nr nr 0005 U 0005 U 0005 U 0005 UCalcium nr nr nr nr nr nr nr nr 246 128 103 39Chromium nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UChromium III nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UCopper nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UIron nr nr nr nr nr nr nr nr 09 158 113 599Lead nr nr nr nr nr nr nr nr 001 U 001 U 001 U 001 UMagnesium nr nr nr nr nr nr nr nr 100 112 100 53Manganese nr nr nr nr nr nr nr nr 04 022 04 099Mercury nr nr nr nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UNickel nr nr nr nr nr nr nr nr 0064 0032 0025 U 0025 UPotassium nr nr nr nr nr nr nr nr 38 37 42 5 USelenium nr nr nr nr nr nr nr nr 0005 U 0005 U 0005 U 0005 USilver nr nr nr nr nr nr nr nr 001 U 001 U 001 U 001 USodium nr nr nr nr nr nr nr nr 790 520 105 560Thallium nr nr nr nr nr nr nr nr 0002 U 0002 U 0002 U 0002 UTin nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UZinc nr nr nr nr nr nr nr nr 0031 005 0025 0025 UCyanide 0005 U 0005 U 0005 U nr nr nr nr nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 05 U 05 U 05 U nr nr nr nr nr 0025 U 0025 U 0025 U 0041Antimony 005 U 005 U 005 U nr nr nr nr nr 0006 U 0006 U 0006 U 0006 UArsenic 005 U 005 U 005 U nr nr nr nr nr 0035 0025 U 0025 U 0039Barium 05 U 05 U 05 U nr nr nr nr nr 059 047 048 014Beryllium 005 U 005 U 005 U nr nr nr nr nr 0004 U 0004 U 0004 U 0004 UCadmium 01 U 01 U 01 U nr nr nr nr nr 0005 U 0005 U 0005 U 0005 UCalcium 1 U 127 246 nr nr nr nr nr 244 136 101 42Chromium 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UCobalt 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UCopper 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UIron 05 U 05 U 05 U nr nr nr nr nr 06 01 U 105 12Lead 025 U 025 U 025 U nr nr nr nr nr 001 U 001 U 001 U 001 UMagnesium 1 U 831 266 nr nr nr nr nr 1000 119 100 59Manganese 005 U 01 005 U nr nr nr nr nr 02 023 039 1Mercury 0002 U 0002 U 0002 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UNickel 01 U 01 U 01 U nr nr nr nr nr 0061 0035 0025 0025 UPotassium 1 U 702 53 nr nr nr nr nr 48 48 40 5 USelenium 005 U 005 U 005 U nr nr nr nr nr 0005 U 0005 U 0005 U 0005 USilver 005 U 005 U 005 U nr nr nr nr nr 001 U 001 U 001 U 001 USodium 1 U 412 851 nr nr nr nr nr 790 590 107 620Thallium 0025 U 0025 U 0025 U nr nr nr nr nr 0002 U 0002 U 0002 U 0002 UVanadium 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UZinc 005 U 005 U 005 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 U

EPA 2008 EPA 2008 EPA 2008 EPA 2008

NA NA NANA NA NA NA NA NAmgL mgL mgLmgL mgL mgL mgL mgL mgL

EPA 2008 EPA 2008 EPA 2008 EPA 2008Not Reported Not Reported Not Reported

NA NA NA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL

Page 4 of 15

AR103843

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ualpha-BHC 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ubeta-BHC 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Udelta-BHC 00005 U 00005 U 000008 U 000008 U 000008 U 000008 Ugamma-BHC (Lindane) 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ualpha-Chlordane 00001 U nr nr nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ugamma-Chlordane nr nr nr nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UChlordane total nr 00005 U 00005 U nr nr nr nr nr nr nr nr nr44-DDD 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 U44-DDE 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 U44-DDT 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UDieldrin 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndosulfan I 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndosulfan II 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndosulfan sulfate 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndrin 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndrin aldehyde 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndrin ketone 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UHeptachlor 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UHeptachlor epoxide 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UMethoxychlor 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UToxaphene 005 U 0005 U 0005 U nr nr nr nr nr 0002 U 0002 U 0002 U 0002 UAroclor-1016 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1221 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1232 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1242 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1248 nr nr nr nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1254 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1260 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UTotal PCBs

Other Analytes PCB HomologuesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

EPA 608 EPA 608 EPA 608 EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082Not reported Not Reported Not Reported

NA NA NANA NA NA NA NA NA NAmgL mgL mgLmgL mgL mgL mgL mgL mgL mgL

Page 5 of 15

AR103844

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved Metals

PCBsPesticides

Other Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag001 U 001 U 005 U 005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U005 U 005 U 005 U 005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

yes yes yes yesyes yes yes yesyes yes yes yesyes yes yes yes

yes yes yes yesno no no no

EPA 8260 EPA 8260 EPA 8260 EPA 8260

NA NA NA NAmgL mgL mgL mgL

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous

no nono

Aqueous

no no

no

nono no no

no

nono no no no

no

yes - PCB Congeners only yes - PCB Congeners only

nono no

yes - PCB Congeners only yes - PCB Congeners onlyyes - PCB Congeners only yes - PCB Congeners only

nono no no no nono no

no no no noyes - PCB Congeners only

no no no

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

nonono

Yes - Lead Only

Yes - PCBs onlyYes - PCBs homologues

Page 6 of 15

AR103845

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 Unr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0002 JBnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 Unr nr nr nr

001 U 0002 005 U 005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nr0001 U 0001 U 0005 U 0005 U

nr nr nr nr0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nr

0015 U 0015 U 0075 U 0075 U

EPA 8260 EPA 8260 EPA 8260 EPA 8260

NA NANA NAmgL mgL mgL mgL

Page 7 of 15

AR103846

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flag001 U 0001 J 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nr

001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U0025 U 0025 U 0025 U 0025 U0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nr

001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nr

0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 001 U 001 Unr nr nr nr

0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U

EPA 8270 EPA 8270 EPA 8270 EPA 8270

NA NA NA NAmgL mgL mgL mgL

Page 8 of 15

AR103847

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag0048 039 0005 U 0005 U nr0006 U 0006 U 0006 U 0006 U nr0025 U 0035 0005 U 0005 U nr032 056 0005 U 0011 nr

0004 U 0004 U 0004 U 0004 U nr0005 U 0005 U 0001 U 0001 U nr131 242 5 U 5 U nr

0025 U 0025 U 0005 U 0005 U nrnr nr nr nr nrnr nr nr nr nr

0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0005 U 0005 U nr

27 11 01 U 01 U nr0012 0015 0002 U 0002 U nr

82 95 5 U 5 U nr091 038 0005 U 0005 U nr

00005 U 00005 U 00005 U 00005 U nr0034 0061 0005 U 0005 U nr

15 36 5 U 5 U nr0005 U 0005 U 0005 U 0005 U nr001 U 001 U 0002 U 0013 nr85 764 5 U 5 U nr

0002 U 0002 U 0002 U 0002 U nrnr nr nr nr nr

0025 U 0025 U 0005 U 0005 U nr0025 U 0038 0008 0009 nr

nr

Result Flag Result Flag Result Flag Result Flag Result Flag0025 U 0025 U 0017 0007 nr0006 U 0006 U 0006 U 0006 U nr0025 U 0033 0005 U 0005 U nr02 057 0005 U 0005 U nr

0004 U 0004 U 0004 U 0004 U nr0005 U 0005 U 0001 U 0001 U nr126 246 5 U 5 U nr

0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0005 U 0005 U nr01 U 01 U 01 U 01 U nr001 U 001 U 0002 U 0002 U 3 U82 97 5 U 5 U nr

087 027 0005 U 0005 U nr00005 U 00005 U 00005 U 00005 U nr003 0069 0005 U 0005 U nr15 40 5 U 5 U nr

0005 U 0005 U 0005 U 0005 U nr001 U 001 U 0002 U 0002 U nr85 789 5 U 5 U nr

0002 U 0002 U 0002 U 0002 U nr0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0008 001 nr

EPA 2008 EPA 2008 EPA 2008 EPA 2008

NA NA NA NAmgL mgL mgL mgL

EPA 2008 EPA 2008 EPA 2008 EPA 2008

NA NA NA NAmgL mgL mgL mgL

SW846 6010B1

ugL

SW846 6010B1

ugL

Page 9 of 15

AR103848

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other Analytes PCB HomologuesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr

nr nr nr nr nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr0002 U 0002 U 0002 U 0002 U nr00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag3090 88300 39300 5430 1970 286 183 U 63 BQ

33300 192000 270000 133000 8130 1270 107 91 BQ45700 85900 207000 164000 9860 1320 63 26 BQ65800 32700 143000 40800 7930 447 412 U 63 BQ83400 10200 24100 3730 2170 235 133 046 QB64900 5370 9300 1400 1640 392 774 0069 QJB30300 2000 2750 361 836 107 903 004 U8230 607 376 716 182 686 U 741 U 004 U1520 119 298 821 272 55 U 567 U 004 U135 162 56 376 U 126 451 U 431 U 004 U

336000 417000 697000 349000 32800 4060 117 186829

pgLpgL pgL pgL pgL pgL pgL

NANA NA NA NA NA NA NANA NA NA NA NA NA

EPA 1668A EPA 1668A EPA 1668A EPA 1668A EPA 1668A EPA 1668A EPA 1668A

ngL

5EPA-22 1668A

EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082

NA NA NA NAmgL mgL mgL mgL

SW846 80821

ugL

Page 10 of 15

AR103849

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

MW-4-FSauer Dump Sauer Dump

C7B130171004

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-2-T MW-1R-F MW-1R-T MW-3-F MW-3-T MW-4-T MW-5-F MW-5-T

C7B080261001 C7B090142002 C7B090142001 C7B090142004 C7B090142003 C7B130171003 C7B130171002

021207020807 020807

C7B130171001

020707 020807 020807 021207 021207 021207Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous

Malcolm PirnieGroundwater Groundwater

Aqueous AqueousGroundwater

Malcolm PirnieGroundwater Groundwater GroundwaterGroundwater Groundwater Groundwater

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr3 U nr 3 U nr 17 J nr 26 J nr 57nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr 3 U nr 3 U nr 3 U nr 3 U nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

1SW846 6010B SW846 6010B

1 1SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B

1 1 1 1 1 1

ugL ugL ugL ugL ugL ugLugL ugL ugL

1SW846 6010B SW846 6010B

1 1SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B

1 1 1 1 1 1

ugL ugL ugL ugL ugL ugLugL ugL ugL

Page 14 of 15

AR103850

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other Analytes PCB HomologuesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

MW-4-FSauer Dump Sauer Dump

C7B130171004

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-2-T MW-1R-F MW-1R-T MW-3-F MW-3-T MW-4-T MW-5-F MW-5-T

C7B080261001 C7B090142002 C7B090142001 C7B090142004 C7B090142003 C7B130171003 C7B130171002

021207020807 020807

C7B130171001

020707 020807 020807 021207 021207 021207Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous

Malcolm PirnieGroundwater Groundwater

Aqueous AqueousGroundwater

Malcolm PirnieGroundwater Groundwater GroundwaterGroundwater Groundwater Groundwater

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr1 U 1 U 1 U 095 U 099 U 099 U 084 J 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U

084

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag80 B 21 B 41 B 44 B 45 B 2 BQ 063 BQ 013 BQ 026 BQ

130 BQ 14 QB 37 BQ 25 QB 34 BQ 140 QB 430 B 051 QB 14 QB50 B 13 B 81 B 20 BQ 40 BQ 95 B 880 BQ 034 QB 17 BQ19 BQ 33 QB 63 BQ 13 BQ 35 BQ 13 BQ 350 BQ 032 QB 26 QB23 QB 09 QB 74 QB 12 QB 58 QB 021 QB 21 BQ 012 QJB 056 QB065 QB 031 QB 50 BQ 029 QB 24 QB 0035 JQB 65 QB 0086 QJB 047 QB017 QB 005 QJB 16 QB 0081 JQB 093 QB 0038 U 14 QB 0031 QJB 022 QB0051 JQ 004 U 42 Q 0038 U 023 Q 0038 U 032 Q 0039 U 0028 J001 J 004 U 093 0038 U 0018 QJ 0038 U 0055 Q 0039 U 0039 U004 U 001 QJ 011 0038 U 0038 U 0038 U 00075 QJ 0039 U 0039 U

282181 3367 33034 63971 122878 250245 16899125 1537 7238

ngLngLngLngL

10EPA-22 1668AEPA-22 1668A

1

ngLngL ngL

1EPA-22 1668AEPA-22 1668A

1

ngL

10EPA-22 1668A

ngL

1EPA-22 1668AEPA-22 1668A

5

1SW846 8082 SW846 8082

1 1SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082

ugL ugL

1 1 1 1 1 1

ugL ugL ugLugLugL ugL ugL

Page 15 of 15

AR103851

APPENDIX B-1

REMOVAL TECHNOLOGY COST ESTIMATES ALTERNATIVE 2

Surface Cap Excavation and Off-Site Disposal

AR103852

Appendix B-1Surface Cap Excavation and Off-Site Disposal Cost Estimate

Alternative 2

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceMobilizationWork Plans Lump Sum 1 50000$ 50000$ 50000$ Engineering JudgmentEquip Contractor Mobilization Lump Sum 1 40000$ 40000$ 40000$ Engineering JudgmentInstall Runoff Controls(silt fence and turbidity curtain) Linear Feet 1195 079$ 944$ 1282$ 0227007041000 Means (2005)Site Survey Acre 409 350000$ 14307$ 14307$ 02 21 1309 0100 Means (2008)

Site PreparationRemove surface debris transport to disposal

Non-hazardous disposal ton 50 8784$ 4392$ 5963$ 33 19 7269 Means (2005)Hazardous disposal Cubic Yard 296 39400$ 116568$ 158276$ Vendor Quote

Clearing and Grubbing (non-river areas) Acre 409 476000$ 19457$ 19457$ Engineering JudgmentNon-hazardous disposal of cleared vegetation ton 598 5000$ 29876$ 29876$ Engineering Judgment

Off-site disposal of grubbed vegetation (assume PRG not met) tons 372 39400$ 146759$ 199269$ Vendor Quote

Site ExcavationSoil (and Sediment Outside of Back River) Excavation

Parcel 425 Cubic Yard 1642 187$ 3078$ 4179$ 0222002380260 Means (2005)Cost Bkp tab for qtyResidential Parcels 137 295464 503532 Cubic Yard 4612 187$ 8645$ 11738$ 0222002380260 Means (2005)

Wetlands Cubic Yard 7740 1290$ 99843$ 123805$ 023154240950 Means (2006)Back River Sampling to assess need for excavation Each 1 10563$ 10563$ 10563$ See Back R Sed Samplng tab

Excavation Screening (all areas)Screening samples at 2-foot excavation depth Each 27 37000$ 9990$ 9990$ Sampling Cost tabScreening samples at 4-foot excavation depth Each 11 37000$ 4070$ 4070$ Sampling Cost tab

Transport soil and sediment to staging areas Cubic Yard 13994 368$ 51496$ 51496$ 31 23 2318 0020 Means (2008)Confirmation Sampling cy per sample [ replaced 20acre excavated] Each 50 37000$ 18500$ 18500$ Sampling Cost tabTransport soil and sediment to capping area Cubic Yard 6176 368$ 22727$ 22727$ 31 23 2318 0020 Means (2008)Verification Screening (all areas) based on grid network

Parcel 425 Each 58 37000$ 21460$ 21460$ Sampling Cost tabResidential Parcels 137 295464 503532 Each 143 37000$ 52910$ 52910$ Sampling Cost tab

Wetlands Each 42 37000$ 15540$ 15540$ Sampling Cost tabDust Suppression Square Foot 125816 001$ 1258$ 1708$ 33 08 0585 Means (2005) water by truckSoil Characterization (TCLP 1 per 200 CY) Each 9 13000$ 1170$ 1170$ HGL Langley R Bird Treatment of water from sediments - (Assume 50water content sediments Gallons 781560 001$ 4924$ 7145$ EPA FRTR (2002)

OFF-Site DisposalHazardous Waste Landfill Disposal (PCB 50 -500 ppm) ton 2803 39400$ 1104227$ 1104227$ Vendor Quote

Incineration (PCB gt500 ppm) ton 475 78000$ 370396$ 370396$ Vendor Quote

Soil Cover Alternative 2

Sauer Dump Site Sheet 1 of 3 HydroGeoLogic Inc February 2009

AR103853

Appendix B-1Surface Cap Excavation and Off-Site Disposal Cost Estimate

Alternative 2

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Cap PlacementCap Layers (material and placement no grading)

Top Cover Cubic Yard 2630 2237$ 58830$ 79879$ 18 05 0301 Means (2005)Burrow Barrier Cubic Yard 3481 2000$ 69614$ 69614$ Engineering JudgmentDrainage Layer Cubic Yard 1315 1055$ 13872$ 18835$ 17 03 0430 Means (2005)Low Permeability Barrier - Clay Cubic Yard 4542 2156$ 97934$ 132975$ 33 08 0507 Means (2005)

Cobble Perimeter Boundary Cubic Yard 1148 2000$ 22959$ 22959$ Engineering JudgmentGrading - TSCA Cap Square Yard 19938 1700$ 338939$ 338939$ 31 22 1610 3300 Means (2008)

Initial Grading after Clear and Grub Before Cap Placement Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)Top Cover Grading Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)

Well Abandonment Each 1 7360$ 7360$ 7360$ Engineering Judgment Cost Bkp tabMonitoring Well Modifications Each 7 4000$ 28000$ 28000$ Engineering Judgment

Cap CompletionSeeding and mulching for Vegetation Cover Square Foot 106509 005$ 5219$ 7086$ 0293003080400 Means (2005)Access Controls - Fence Modification Linear Feet 1613 200$ 3226$ 3226$ Engineering JudgmentAccess Controls - Signs Linear Feet 1613 020$ 323$ 323$ 1 sign 500 ft of perimeter $100 installed = $020ftDemobilization Lump Sum 1 20000$ 20000$ 20000$ Engineering JudgmentWetlands Restoration Acres 120 100000$ 119934$ 134465$ Engineering Judgment

Site Grading Square Yard 5805 322$ 18691$ 23177$ 023101000010 Means (2006)Clean Fill Cubic Yard 7740 697$ 53946$ 73248$ 17 03 0422 Means (2005)

Compaction Cubic Yard 7740 300$ 23219$ 31527$ Engineering JudgmentResidential Area Site Restoration

Top Cover Cubic Yard 1996 2237$ 44644$ 60618$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 5672 697$ 39537$ 53683$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 2145 322$ 6908$ 8566$ 023101000010 Means (2006)

Seeding and mulching for Vegetation Cover Square Foot 19307 025$ 4730$ 6422$ 0293003080400 Means (2005) 5 (EJ) for residential area

Subtotal 3085524$ 3565464$ Project SupportEngineering Design 12 of Subtotal 370263$ 415123$ Past Project ExperienceProject Management 10 of Subtotal 308552$ 345935$ Past Project ExperienceConstruction Management 8 of Subtotal 246842$ 276749$ Past Project ExperienceContingencies 15 of Subtotal 462829$ 518904$ EPA 540-R-98-045Back River Excavation Contingency 50 of est cost 250000$ 125000$ Engineering JudgmentCompletion Reports Lump Sum 1 6000000$ 60000$ 60000$ Past Project Experience

Subtotal 1698486$ 1741711$ TOTAL INSTALLED COST 4784010$ 5307175$

Sauer Dump Site Sheet 2 of 3 HydroGeoLogic Inc February 2009

AR103854

Appendix B-1Surface Cap Excavation and Off-Site Disposal Cost Estimate

Alternative 2

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Operation and MaintenancePeriodic Inspection (4yr engr 20 hr ea) Hrs 80 10000$ 8000$ 8000$ Engineering JudgmentBurrowing Animal Control allowance Each 1 250000$ 2500$ 2500$ Engineering JudgmentHydroseeding repair veg cover (10yr) Acre 024 53762$ 131$ 188$ 180504028102002 Means (2004)Fence Repairs (10) Linear Feet 161 1500$ 2419$ 3466$ 17020701 Means + $4ft material allowanceCap RepairsFillRegradingCompaction (5 8 in fills) Cubic Yard 656 1116$ 7319$ 10484$ 17 03 0429 Means (2004)GroundwaterSurface Water Monitoring 1yr 2 ppl 24 hr each hrs 48 10000$ 4800$ 4800$ Engineering JudgmentGroundwaterSurface Water Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentReporting (1yr) Hrs 160 10000$ 16000$ 16000$ Engineering Judgment

Total Annual OampM Cost 43169$ 47438$

Present Value of OampM 663621$ 729236$

TOTAL PROJECT COST 6036410$

Sauer Dump Site Sheet 3 of 3 HydroGeoLogic Inc February 2009

AR103855

APPENDIX B-2

REMOVAL TECHNOLOGY COST ESTIMATES ALTERNATIVE 3

Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment

AR103856

Appendix B-2Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 3

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceMobilizationWork Plans Lump Sum 1 100000$ 100000$ 100000$ Engineering JudgmentEquip Contractor Mobilization Lump Sum 1 75000$ 75000$ 75000$ Engineering JudgmentInstall Runoff Controls(silt fence and turbidity curtain) Linear Feet 1195 079$ 944$ 1282$ 0227007041000 Means (2005)Permitting (NPDES Permit etc) Lump Sum 1 50000$ 50000$ 50000$ Engineering JudgmentSite Survey Acre 409 350000$ 14307$ 14307$ 02 21 1309 0100 Means (2008)System Startup Shakedown Lump Sum 1 25000$ 25000$ 25000$ Engineering Judgment

Site Preparation and ExcavationRemove surface debris transport to disposal

Non-hazardous disposal ton 50 8784$ 4392$ 5963$ 33 19 7269 Means (2005)Hazardous disposal Cubic Yard 296 39400$ 116568$ 158276$ Vendor Quote

Clearing and Grubbing (non-river areas) Acre 467 476000$ 22218$ 22218$ Engineering JudgmentNon-hazardous disposal of cleared vegetation ton 598 5000$ 29876$ 29876$ Engineering Judgment

Off-site disposal of grubbed vegetation (assume PRG not met) tons 372 39400$ 146759$ 199269$ Vendor QuoteSoil (and Sediment Outside of Back River) Excavation

Parcel 425 Cubic Yard 8058 187$ 15105$ 20510$ 0222002380260 Means (2005)Cost Bkp tab for qtyResidential Parcels 137 295464 503532 Cubic Yard 4612 187$ 8645$ 11738$ 0222002380260 Means (2005)

Wetlands Cubic Yard 7740 1290$ 99843$ 123805$ 023154240950 Means (2006)Back River Sampling to assess need for excavation Each 1 $10563 10563$ 10563$ See Back R Sed Samplng tab

Excavation Screening (all areas)Screening samples at 2-foot excavation depth Each 27 37000$ 9990$ 9990$ Sampling Cost tabScreening samples at 4-foot excavation depth Each 11 37000$ 4070$ 4070$ Sampling Cost tab

Transport soil and sediment to staging areas Cubic Yard 20410 368$ 75109$ 75109$ 31 23 2318 0020 Means (2008)Confirmation Sampling cy per sample [ replaced 20acre excavated] Each 82 37000$ 30340$ 30340$ Sampling Cost tabTransport soil and sediment to capping area Cubic Yard 6176 368$ 22727$ 22727$ 31 23 2318 0020 Means (2008)Verification Screening (all areas) based on grid network

Parcel 425 Each 81 37000$ 29970$ 29970$ Sampling Cost tabResidential Parcels 137 295464 503532 Each 143 37000$ 52910$ 52910$ Sampling Cost tab

Wetlands Each 42 37000$ 15540$ 15540$ Sampling Cost tabDust Suppression Square Foot 125816 001$ 1258$ 1708$ 33 08 0585 Means (2005) water by truckSoil Characterization (TCLP 1 per 200 CY) Each 41 13000$ 5330$ 5330$ HGL Langley R Bird Treatment of water from sediments - (Assume 50water content sediments) Gallons 781560 001$ 4924$ 7145$ EPA FRTR (2002)

OFF-Site DisposalHazardous Waste Landfill Disposal (PCB 50 -500 ppm) ton 2803 39400$ 1104227$ 1104227$ Vendor Quote

Incineration (PCB gt500 ppm) ton 475 78000$ 370396$ 370396$ Vendor QuoteNon-hazardous disposal (PCB lt 50 ppm) ton 10808 8784$ 949350$ 1289027$ 33 19 7269 Means (2005)

Alternative 3 Excavation Off-site Disposal and GW Treatment

Sauer Dump Site Sheet 1 of 4 HydroGeoLogic Inc February 2009

AR103857

Appendix B-2Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 3

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceCap PlacementCap Layers (material and placement no grading)

Top Cover Cubic Yard 2630 2237$ 58830$ 79879$ 18 05 0301 Means (2005)Burrow Barrier Cubic Yard 3481 2000$ 69614$ 69614$ Engineering JudgmentDrainage Layer Cubic Yard 1315 1055$ 13872$ 18835$ 17 03 0430 Means (2005)Low Permeability Barrier - Clay Cubic Yard 4542 2156$ 97934$ 132975$ 33 08 0507 Means (2005)

Cobble Perimeter Boundary Cubic Yard 1148 2000$ 22959$ 22959$ Engineering JudgmentGrading - TSCA Cap Square Yard 19938 1700$ 338946$ 338946$ 31 22 1610 3300 Means (2008)

Initial Grading after Clear and Grub Before Cap Placement Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)TopCover Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)

Well Abandonment Each 1 7360$ 7360$ 7360$ Engineering Judgment Cost Bkp tabMonitoring Well Modifications Each 7 4000$ 28000$ 28000$ Engineering Judgment

Cap CompletionSeeding and mulching for Vegetation Cover Square Foot 106509 005$ 5219$ 7086$ 0293003080400 Means (2005)Access Controls - Fence Modification Linear Feet 1613 200$ 3226$ 3226$ Engineering JudgmentAccess Controls - Signs Linear Feet 1613 020$ 323$ 323$ 1 sign 500 ft of perimeter $100 installed = $020ftDemobilization Lump Sum 1 20000$ 20000$ 20000$ Engineering Judgment

Residential Area Site RestorationTop Cover Cubic Yard 1996 2237$ 44644$ 60618$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 5672 697$ 39537$ 53683$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 2145 322$ 6908$ 8566$ 023101000010 Means (2006)Seeding and mulching for Vegetation Cover Square Foot 19307 025$ 4730$ 6422$ 0293003080400 Means (2005) 5 (EJ) for residential area

Wetlands Restoration Acres 120 100000$ 119934$ 134465$ Engineering JudgmentSite Grading Square Yard 5805 322$ 18691$ 23177$ 023101000010 Means (2006)

Clean Fill Cubic Yard 7740 697$ 53946$ 73248$ 17 03 0422 Means (2005)Compaction Cubic Yard 7740 300$ 23219$ 31527$ Engineering Judgment

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater RedirectionEach 1 16988800$ 169888$ 169888$ See Groundwater Collection and Treatment Sheet

Subtotal 4619355$ 5251600$ Project SupportEngineering Design 12 of Subtotal 554323$ 621483$ Past Project ExperienceProject Management 10 of Subtotal 461936$ 517903$ Past Project ExperienceConstruction Management 8 of Subtotal 369548$ 414321$ Past Project ExperienceContingencies 15 of Subtotal 692903$ 776853$ EPA 540-R-98-045Back River Excavation Contingency 50 of est cost 250000$ 125000$ Engineering JudgmentCompletion Reports Lump Sum 1 6000000$ 60000$ 60000$ Past Project Experience

Subtotal 2388710$ 2515560$ TOTAL INSTALLED COST 7008065$ 7767160$

Sauer Dump Site Sheet 2 of 4 HydroGeoLogic Inc February 2009

AR103858

Appendix B-2Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 3

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Annual OampM Costs Operation and Maintenance Groundwater Collection and Treatment SystemPeriodic Inspection (2yr engr 8 hr ea) hrs 16 10000$ 1600$ 1600$ Engineering JudgmentSystem Operations Reporting (1yr) hrs 48 10000$ 4800$ 4800$ Engineering JudgmentSystem NPDES Monitoring 4yr 2 ppl 16 hr each hrs 128 10000$ 12800$ 12800$ Engineering JudgmentNPDES Monitoring Report 4yr 24 hrreport hrs 96 10000$ 9600$ 9600$ Engineering JudgmentAnnual Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentPart-time operator check system 1week $60hr 6 hrwk hrs 312 6000$ 18720$ 18720$ Engineering JudgmentFilter Bag Replacement 1xwk each 156 1000$ 1560$ 1560$ Engineering JudgmentFilter Bag Disposal drum 2 drumsyr TSCA incineration drum 2 100000$ 2000$ 2000$ Engineering JudgmentGAC annual profiling fees changeout 1 vesselyr each 1 25000$ 250$ 250$ vendor quoteGAC changeoutregeneration 1xyr each 2 143248$ 2865$ 2865$ 33 13 2005 13274 1215 Means (2004)Utilities - 2-14 hp pumps 2-12hp pumps add 40 for heat lighting controls kW hr 32751 008$ 2620$ 2620$ Engineering JudgementUtilities - phone mo 12 7500$ 900$ 900$ Engineering Judgment Operation and Maintenance Compacted Soil Cover and MonitoringPeriodic Inspection (4yr engr 20 hr ea) Hrs 80 10000$ 8000$ 8000$ Engineering JudgmentBurrowing Animal Control allowance Each 1 250000$ 2500$ 2500$ Engineering JudgmentHydroseeding repair veg cover (10yr) Acre 024 53762$ 131$ 188$ 180504028102002 Means (2004)Fence Repairs (10) Linear Feet 161 1500$ 2419$ 3466$ 17020701 Means + $4ft material allowanceCap RepairsFillRegradingCompaction (5 8 in fills) Cubic Yard 656 1116$ 7319$ 10484$ 17 03 0429 Means (2004)GroundwaterSurface Water Monitoring 1yr 2 ppl 24 hr each hrs 48 10000$ 4800$ 4800$ Engineering JudgmentGroundwaterSurface Water Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentReporting (1yr) Hrs 160 10000$ 16000$ 16000$ Engineering Judgment

Total Annual OampM Cost 118885$ 123153$

Present Value of Annual OampM (7 discount factor 30 yrs) 1475243$ 1528209$

Periodic OampM Costs Remove Interceptor Trench Gravel Replace 15 yrs into ProjectInterceptor Trench Excavation overburden and gravel bank cubic yd 1496 247$ 3696$ 3696$ 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 748 3286$ 24584$ 24584$ 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 748 103$ 771$ 771$ 02310 120 3000 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 748 336$ 2514$ 2514$ 02315 120 3320 Means (2006)Non-hazardous disposal of excavated soilgravel nonhazardous ton 748 8784$ 65717$ 65717$ 33 19 7269 Means (2005)

Present Value Periodic OampM Costs 97282$ 97282$

Total Present Value all OampM Costs 1572525$ 1625491$

TOTAL PROJECT COST 9392652$

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Appendix B-2Excavation Offsite Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost 2009 Cost Reference

Interceptor Trench Sump Construction(2 trenches)Interceptor Trench Excavation bank cubic yd 3741 247$ $9231 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 1496 3286$ $49170 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 1496 103$ $1540 02310 120 3000 Means (2006)Purchase prep set groundwater extraction sumps Each 2 100000$ $2000 Engineering Judgment previous experiencePurchase install 4 PVC perforated drain pipe ft 1000 1057$ $10572 33 26 09 02709 2100 Means (2004)Haul dump place excess trench waste soil at cap area Cubic Yard 1496 224$ $3358 02315 110 1900 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 2244 336$ $7542 02315 120 3320 Means (2006)Extraction pumps - Each 2 30000$ $600 pump supplier web site incl freight 14 hp motorPump Controls panels connections Each 2 150000$ $3000 Engineering Judgment

Pump System Piping (treatment building located at south end of Parcel 425)Sumps to treatment building trench header lines 48 deep lineal ft 1200 110$ $1324 02315 620 2250 Means (2006) install 15 sch 80 PVC headers lineal ft 1200 420$ $5037 33 26 0427 Means (2004)

Treatment SystemTreatment Building 20 x 20 sq ft 400 7936$ $31744 median $sf factory Means (2006)Piping Allowance each 1 250000$ $2500 Engineering JudgementSurge Tank 2500 gal poly tank each 2 200000$ $4000 online pricing added freight estimateTransfer Pumps 30 gpm 12 hp centrifugal each 2 40000$ $800 pump web site pricing plus freight allowancePrefilter basket strainers each 2 120000$ $2400 Engineering JudgementGAC Adsorbers 2 in series 200 lb ea initial each 2 143248$ $2865 33 13 2005 13274 1215 Means (2004)Valving Flowmeters Controls Electrical each 1 1000000$ $10000 Engineering Judgement trench discharge line 48 deep lineal ft 200 110$ $221 02315 620 2250 Means (2006)Discharge Piping 4 sch 80 PVC lineal ft 200 992$ $1984 33 26 0427 Means (2004)Utilities - electrical phone service to site install poles li each 1 2000000$ $20000 allowance engineering estimate

TOTAL INSTALLED COST $169888

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater Redirection

Sauer Dump Site Sheet 4 of 4 HydroGeoLogic Inc February 2009

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APPENDIX B-3

REMOVAL TECHNOLOGY COST ESTIMATES ALTERNATIVE 4

Excavation Off-Site Disposal and Groundwater Collection and Treatment

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Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceMobilizationWork Plans Lump Sum 1 100000$ 100000$ 100000$ Engineering JudgmentEquip Contractor Mobilization Lump Sum 1 75000$ 75000$ 75000$ Engineering JudgmentInstall Runoff Controls(silt fence and turbidity curtain) Linear Feet 1195 079$ 944$ 1282$ 0227007041000 Means (2005)Permitting (NPDES Permit etc) Lump Sum 1 50000$ 50000$ 50000$ Engineering JudgmentSite Survey Acre 409 350000$ 14307$ 14307$ 02 21 1309 0100 Means (2008)System Startup Shakedown Lump Sum 1 25000$ 25000$ 25000$ Engineering Judgment

Site Preparation and ExcavationRemove surface debris transport to disposal

Non-hazardous disposal ton 50 8784$ 4392$ 5963$ 33 19 7269 Means (2005)Hazardous disposal Cubic Yard 296 39400$ 116568$ 158276$ Vendor Quote

Clearing and Grubbing (non-river areas) Acre 467 476000$ 22218$ 22218$ Engineering JudgmentNon-hazardous disposal of cleared vegetation ton 598 5000$ 29899$ 29899$ Engineering Judgment

Off-site disposal of grubbed vegetation (assume PRG not met) ton 372 39400$ 146759$ 199269$ Vendor QuoteSoil (and Sediment Outside of Back River) Excavation

Parcel 425 Cubic Yard 12154 187$ 22783$ 30935$ 0222002380260 Means (2005)Cost Bkp tab for qtyResidential Parcels 137 295464 503532 Cubic Yard 4612 187$ 8645$ 11738$ 0222002380260 Means (2005)

Wetlands Cubic Yard 7740 1290$ 99843$ 123805$ 023154240950 Means (2006)Back River Sampling to assess need for excavation Each 1 $10563 10563$ 10563$ See Back R Sed Samplng tab

Excavation Screening (all areas)Screening samples at 2-foot excavation depth Each 44 37000$ 16280$ 16280$ Sampling Cost tabScreening samples at 4-foot excavation depth Each 18 37000$ 6660$ 6660$ Sampling Cost tab

Transport soil and sediment to staging areas Cubic Yard 24506 368$ 90181$ 90181$ 31 23 2318 0020 Means (2008)Confirmation Sampling cy per sample [ replaced 20acre excavated] Each 99 37000$ 36630$ 36630$ Sampling Cost tabVerification Screening (all areas) based on grid network

Parcel 425 Each 88 37000$ 32560$ 32560$ Sampling Cost tabResidential Parcels 137 295464 503532 Each 143 37000$ 52910$ 52910$ Sampling Cost tab

Wetlands Each 42 37000$ 15540$ 15540$ Sampling Cost tabDust Suppression Square Foot 125816 001$ 1258$ 1708$ 33 08 0585 Means (2005) water by truckSoil Characterization (TCLP 1 per 200 CY) Each 122 13000$ 15860$ 15860$ HGL Langley R Bird Treatment of water from sediments - (Assume 50water content sediments) Gallons 781560 001$ 4924$ 7145$ EPA FRTR (2002)

Alternative 4 Excavation Off-site Disposal and GW Treatment

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Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

OFF-Site DisposalHazardous Waste Landfill Disposal (PCB 50 -500 ppm) ton 2781 39400$ 1095545$ 1095545$ Vendor Quote

Incineration (PCB gt500 ppm) ton 475 78000$ 370396$ 370396$ Vendor QuoteNon-hazardous disposal (PCB lt 50 ppm) ton 38404 8784$ 3373451$ 4580470$ 33 19 7269 Means (2005)

Well Abandonment Each 1 7360$ 7360$ 7360$ Engineering Judgment Cost Bkp tabMonitoring Well Modifications Each 7 4000$ 28000$ 28000$ Engineering Judgment

Residential Area Site RestorationTop Cover Cubic Yard 1996 2237$ 44644$ 60618$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 5672 697$ 39537$ 53683$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 2145 322$ 6908$ 8566$ 023101000010 Means (2006)

Parcel 425 RestorationTop Cover Cubic Yard 921 2237$ 20613$ 27988$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 11233 697$ 78292$ 106305$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 5529 322$ 17803$ 22076$ 023101000010 Means (2006)

Seeding and mulching for Vegetation Cover Square Foot 69066 025$ 16921$ 22975$ 0293003080400 Means (2005) 5 (EJ) for residential area

Wetlands Restoration Acres 120 100000$ 119934$ 134465$ Engineering JudgmentSite Grading Square Yard 5805 322$ 18691$ 23177$ 023101000010 Means (2006)

Clean Fill Cubic Yard 7740 697$ 53946$ 73248$ 17 03 0422 Means (2005)Compaction Cubic Yard 7740 300$ 23219$ 31527$ Engineering Judgment

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater RedirectionEach 1 16988800$ 169888$ 169888$ See Groundwater Collection and Treatment Sheet

Subtotal 6484872$ 7950017$ Project SupportEngineering Design 12 of Subtotal 778185$ 872468$ Past Project ExperienceProject Management 10 of Subtotal 648487$ 727056$ Past Project ExperienceConstruction Management 8 of Subtotal 518790$ 581645$ Past Project ExperienceContingencies 15 of Subtotal 972731$ 1090584$ EPA 540-R-98-045Back River Excavation Contingency 50 of est cost 250000$ 125000$ Engineering JudgmentCompletion Reports Lump Sum 1 6000000$ 60000$ 60000$ Past Project Experience

Subtotal 3228193$ 3456753$

TOTAL INSTALLED COST 9713065$ 11406769$

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Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Annual OampM Costs Operation and Maintenance Groundwater Collection and Treatment SystemPeriodic Inspection (2yr engr 8 hr ea) hrs 16 10000$ 1600$ 1600$ Engineering JudgmentSystem Operations Reporting (1yr) hrs 48 10000$ 4800$ 4800$ Engineering JudgmentSystem NPDES Monitoring 4yr 2 ppl 16 hr each hrs 128 10000$ 12800$ 12800$ Engineering JudgmentNPDES Monitoring Report 4yr 24 hrreport hrs 96 10000$ 9600$ 9600$ Engineering JudgmentAnnual Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentPart-time operator check system 1week $60hr 6 hrwk hrs 312 6000$ 18720$ 18720$ Engineering JudgmentFilter Bag Replacement 1xwk each 156 1000$ 1560$ 1560$ Engineering JudgmentFilter Bag Disposal drum 2 drumsyr TSCA incineration drum 2 100000$ 2000$ 2000$ Engineering JudgmentGAC annual profiling fees changeout 1 vesselyr each 1 25000$ 250$ 250$ vendor quoteGAC changeoutregeneration 1xyr each 2 143248$ 2865$ 2865$ 33 13 2005 13274 1215 Means (2004)Utilities - 2-14 hp pumps 2-12hp pumps add 40 for heat lighting controls kW hr 32751 008$ 2620$ 2620$ Engineering JudgementUtilities - phone mo 12 7500$ 900$ 900$ Engineering Judgment Operation and Maintenance Groundwater and Surface Water MonitoringFence Repairs (10) Linear Feet 10 1500$ 150$ 215$ 17020701 Means + $4ft material allowanceGroundwaterSurface Water Monitoring 1yr 2 ppl 24 hr each hrs 48 10000$ 4800$ 4800$ Engineering JudgmentGroundwaterSurface Water Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentReporting (1yr) Hrs 160 10000$ 16000$ 16000$ Engineering Judgment

Total Annual OampM Cost 98665$ 98730$

Present Value of Annual OampM (7 discount factor 30 yrs) 1224339$ 1225144$

Periodic OampM Costs Remove Interceptor Trench Gravel Replace 15 yrs into ProjectInterceptor Trench Excavation overburden and gravel bank cubic yd 1496 247$ 3696$ 3696$ 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 748 3286$ 24584$ 24584$ 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 748 103$ 771$ 771$ 02310 120 3000 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 748 336$ 2514$ 2514$ 02315 120 3320 Means (2006)Non-hazardous disposal of excavated soilgravel nonhazardous ton 748 8784$ 65717$ 65717$ 33 19 7269 Means (2005)

Present Value Periodic OampM Costs 97282$ 97282$

Total Present Value all OampM Costs 1321621$ 1322426$

TOTAL PROJECT COST 12729195$

Sauer Dump Site Sheet 3 of 4 HydroGeoLogic Inc February 2009

AR103864

Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost 2009 Cost ReferenceInterceptor Trench Sump Construction(2 trenches)Interceptor Trench Excavation bank cubic yd 3741 247$ $9231 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 1496 3286$ $49170 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 1496 103$ $1540 02310 120 3000 Means (2006)Purchase prep set groundwater extraction sumps Each 2 100000$ $2000 Engineering Judgment previous experiencePurchase install 4 PVC perforated drain pipe ft 1000 1057$ $10572 33 26 09 02709 2100 Means (2004)Haul dump place excess trench waste soil at cap area Cubic Yard 1496 224$ $3358 02315 110 1900 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 2244 336$ $7542 02315 120 3320 Means (2006)Extraction pumps - Each 2 30000$ $600 pump supplier web site incl freight 14 hp motorPump Controls panels connections Each 2 150000$ $3000 Engineering Judgment

Pump System Piping (treatment building located at south end of Parcel 425)Sumps to treatment building trench header lines 48 deep lineal ft 1200 110$ $1324 02315 620 2250 Means (2006) install 15 sch 80 PVC headers lineal ft 1200 420$ $5037 33 26 0427 Means (2004)

Treatment SystemTreatment Building 20 x 20 sq ft 400 7936$ $31744 median $sf factory Means (2006)Piping Allowance each 1 250000$ $2500 Engineering JudgementSurge Tank 2500 gal poly tank each 2 200000$ $4000 online pricing added freight estimateTransfer Pumps 30 gpm 12 hp centrifugal each 2 40000$ $800 pump web site pricing plus freight allowancePrefilter basket strainers each 2 120000$ $2400 Engineering JudgementGAC Adsorbers 2 in series 200 lb ea initial each 2 143248$ $2865 33 13 2005 13274 1215 Means (2004)Valving Flowmeters Controls Electrical each 1 1000000$ $10000 Engineering Judgement trench discharge line 48 deep lineal ft 200 110$ $221 02315 620 2250 Means (2006)Discharge Piping 4 sch 80 PVC lineal ft 200 992$ $1984 33 26 0427 Means (2004)Utilities - electrical phone service to site install poles li each 1 2000000$ $20000 allowance engineering estimate

TOTAL INSTALLED COST $169888

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater Redirection

Sauer Dump Site Sheet 4 of 4 HydroGeoLogic Inc February 2009AR103865

  • 10 INTRODUCTION
    • 11 PURPOSE AND ORGANIZATION OF THE REPORT
    • 12 SITE BACKGROUND
      • 121 Site Location and Description
      • 122 Site Operational History
        • 13 PREVIOUS SITE INVESTIGATIONS
          • 131 MDE and EPA Initial Site Investigations
          • 132 MDE Site Investigation (1990)
          • 133 EPA Expanded Site Inspection
          • 134 MDE Investigations (1996-2005)
          • 135 Extent of Contamination Study
            • 1351 Site Reconnaissance
            • 1352 Soil and Sediment Sampling
            • 1353 Surface Water Sampling
            • 1354 Groundwater Monitoring Well Installation and Sampling
                • 14 NATURE AND EXTENT OF CONTAMINATION
                  • 141 Surface and Subsurface Soil Contamination
                  • 142 Sediment Contamination
                    • 15 CONTAMINANT FATE AND TRANSPORT
                    • 16 SUMMARY OF BASELINE RISK ASSESSMENT
                      • 20 REMOVAL OBJECTIVES
                        • 21 REMOVAL OBJECTIVES
                        • 22 IDENTIFICATION OF POTENTIAL APPLICABLE OR RELEVANT AND APPROPRIATE REQUIREMENTS
                          • 221 Chemical-Specific ARARs
                          • 222 Location-Specific ARARs
                          • 223 Action-Specific ARARs
                          • 224 To Be Considered Materials
                            • 23 DETERMINATION OF PRELIMINARY REMEDIAL GOALS AND DESCRIPTION OF CONTAMINATED MEDIA
                              • 231 Development of Preliminary Remedial Goals (PRGs)
                              • 232 Volume Estimates ndash Soils and Sediments
                              • 233 Groundwater Management
                                  • 30 IDENTIFICATION AND SCREENING OF TECHNOLOGY TYPES AND PROCESS OPTIONS
                                    • 31 GENERAL RESPONSE ACTIONS (GRAS)
                                    • 32 IDENTIFICATION AND SCREENING OF POTENTIALLY APPLICABLE TECHNOLOGIES
                                    • 33 EVALUATION OF POTENTIAL REMEDIAL TECHNOLOGIES
                                      • 331 No Action
                                      • 332 Institutional Controls
                                        • 3321 Deed NoticesRestrictions
                                        • 3322 Access Agreements
                                        • 3323 Monitoring of Site Conditions
                                        • 3324 Security Fencing
                                        • 3325 Public Awareness and Information Programs
                                          • 333 Containment
                                            • 3331 Multi-Layer Cover
                                            • 3332 TSCA Compacted Soil Cover
                                            • 3333 Asphalt or Concrete Cover
                                              • 334 Soils and Sediments Treatment
                                                • 3341 In Situ Soil Flushing
                                                • 3342 Ex Situ Soil Washing
                                                • 3343 Ex Situ Thermal Desorption
                                                • 3344 Ex Situ Thermal Destruction (Incineration)
                                                  • 335 Groundwater CollectionTreatment
                                                    • 3351 Interceptor Trench
                                                    • 3352 Extraction Wells
                                                    • 3353 Granular Activated Carbon Adsorption
                                                    • 3354 Monitored Natural Attenuation
                                                      • 336 Removal and Disposal TPOs
                                                        • 3361 Excavation
                                                        • 3362 Off-Site Landfill
                                                            • 34 SUMMARY OF TREATMENT TECHNOLOGIES AND SELECTION OF REPRESENTATIVE PROCESS OPTIONS
                                                              • 40 DEVELOPMENT AND DETAILED ANALYSIS OF REMOVAL ALTERNATIVES
                                                                • 41 DEVELOPMENT OF ALTERNATIVES
                                                                  • 411 Alternative 1 No Action
                                                                  • 412 Alternative 2 Surface Cap Excavation and Off-Site Disposal
                                                                  • 413 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                  • 414 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                    • 42 EVALUATION CRITERIA
                                                                    • 43 DETAILED ANALYSIS OF ALTERNATIVES
                                                                      • 431 Alternative 1 No Action
                                                                        • 4311 Effectiveness
                                                                        • 4312 Implementability
                                                                        • 4313 Cost
                                                                          • 432 Alternative 2 Surface Cap Excavation and Off-Site Disposal
                                                                            • 4321 Effectiveness
                                                                            • 4322 Implementability
                                                                            • 4323 Cost
                                                                              • 433 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                                • 4331 Effectiveness
                                                                                • 4332 Implementability
                                                                                • 4333 Cost
                                                                                  • 434 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                                    • 4341 Effectiveness
                                                                                    • 4342 Implementability
                                                                                    • 4343 Cost
                                                                                        • 44 COMPARATIVE ANALYSIS OF ALTERNATIVES
                                                                                          • 441 Effectiveness
                                                                                          • 442 Implementability
                                                                                          • 443 Cost
                                                                                              • 50 SUMMARY
                                                                                              • 60 REFERENCES
Page 3: ENGINEERING EVALUATION/COST ANALYSIS (EE/CA)

TABLE OF CONTENTS Section Page

EXECUTIVE SUMMARY ES-1

10 INTRODUCTION 1-1 11 PURPOSE AND ORGANIZATION OF THE REPORT1-1 12 SITE BACKGROUND 1-1

121 Site Location and Description 1-2 122 Site Operational History 1-2

13 PREVIOUS SITE INVESTIGATIONS1-3 131 MDE and EPA Initial Site Investigations1-3 132 MDE Site Investigation (1990) 1-3 133 EPA Expanded Site Inspection 1-3 134 MDE Investigations (1996-2005) 1-4 135 Extent of Contamination Study 1-4

1351 Site Reconnaissance 1-5 1352 Soil and Sediment Sampling 1-5 1353 Surface Water Sampling1-5 1354 Groundwater Monitoring Well Installation and Sampling 1-6

14 NATURE AND EXTENT OF CONTAMINATION 1-6 141 Surface and Subsurface Soil Contamination1-6 142 Sediment Contamination1-7

15 CONTAMINANT FATE AND TRANSPORT 1-7 16 SUMMARY OF BASELINE RISK ASSESSMENT 1-8

20 REMOVAL OBJECTIVES 2-1 21 REMOVAL OBJECTIVES 2-1 22 IDENTIFICATION OF POTENTIAL APPLICABLE OR RELEVANT

AND APPROPRIATE REQUIREMENTS2-1 221 Chemical-Specific ARARs 2-2 222 Location-Specific ARARs 2-4 223 Action-Specific ARARs2-4 224 To Be Considered Materials 2-6

23 DETERMINATION OF PRELIMINARY REMEDIAL GOALS AND DESCRIPTION OF CONTAMINATED MEDIA2-7 231 Development of Preliminary Remedial Goals2-7 232 Volume Estimates ndash Soils and Sediments2-8 233 Groundwater Management 2-9

30 IDENTIFICATION AND SCREENING OF TECHNOLOGY TYPES AND PROCESS OPTIONS3-1 31 GENERAL RESPONSE ACTIONS3-1

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TABLE OF CONTENTS (continued) Section Page

US EPA Region 3 Sauer Dump Site EECA ii HydroGeoLogic Inc April 2009

32 IDENTIFICATION AND SCREENING OF POTENTIALLY APPLICABLE TECHNOLOGIES 3-2

33 EVALUATION OF POTENTIAL REMEDIAL TECHNOLOGIES3-2 331 No Action 3-2 332 Institutional Controls 3-3

3321 Deed NoticesRestrictions3-3 3322 Access Agreements3-3 3323 Monitoring of Site Conditions3-4 3324 Security Fencing 3-4 3325 Public Awareness and Information Programs 3-5

333 Containment 3-5 3331 Multi-Layer Cover 3-5 3332 TSCA Compacted Soil Cover 3-6 3333 Asphalt or Concrete Cover3-7

334 Soils and Sediments Treatment 3-8 3341 In Situ Soil Flushing 3-8 3342 Ex Situ Soil Washing 3-9 3343 Ex Situ Thermal Desorption 3-9 3344 Ex Situ Thermal Destruction (Incineration) 3-10

335 Groundwater CollectionTreatment 3-11 3351 Interceptor Trench 3-11 3352 Extraction Wells 3-11 3353 Granular Activated Carbon Adsorption 3-12 3354 Monitored Natural Attenuation 3-12

336 Removal and Disposal TPOs 3-13 3361 Excavation 3-13 3362 Off-Site Landfill 3-13

34 SUMMARY OF TREATMENT TECHNOLOGIES AND SELECTION OF REPRESENTATIVE PROCESS OPTIONS 3-14

40 DEVELOPMENT AND DETAILED ANALYSIS OF REMOVAL ALTERNATIVES 4-1 41 DEVELOPMENT OF ALTERNATIVES4-1

411 Alternative 1 No Action 4-1 412 Alternative 2 Surface Cap Excavation and Off-Site Disposal 4-1 413 Alternative 3 Surface Cap Excavation Off-Site Disposal

and Groundwater Collection and Treatment 4-4 414 Alternative 4 Excavation Off-Site Disposal and Groundwater

Collection and Treatment4-6 42 EVALUATION CRITERIA 4-7 43 DETAILED ANALYSIS OF ALTERNATIVES 4-8

431 Alternative 1 No Action 4-8

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TABLE OF CONTENTS (continued) Section Page

US EPA Region 3 Sauer Dump Site EECA iii HydroGeoLogic Inc April 2009

4311 Effectiveness4-8 4312 Implementability 4-8 4313 Cost 4-8

432 Alternative 2 Surface Cap Excavation and Off-Site Disposal 4-8 4321 Effectiveness4-8 4322 Implementability 4-9 4323 Cost 4-10

433 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment 4-10 4331 Effectiveness 4-10 4332 Implementability 4-11 4333 Cost 4-11

434 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment 4-11 4341 Effectiveness 4-11 4342 Implementability 4-12 4343 Cost 4-12

44 COMPARATIVE ANALYSIS OF ALTERNATIVES 4-12 441 Effectiveness 4-13 442 Implementability 4-14 443 Cost 4-14

50 SUMMARY5-1

60 REFERENCES6-1

LIST OF APPENDICES

Appendix A Historic Analytical Data Tables Appendix B Removal Technology Cost Estimates

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LIST OF TABLES

Table 21 Applicable or Relevant and Appropriate Requirements (ARARs) and To Be

Considered Material (TBCs) for Sauer Dump Site Table 22 Preliminary Remediation Goals for Sauer Dump Site Table 23 Estimated Extent of Site Contamination for Sauer Dump Site Table 31 Identification and Preliminary Screening of Soil and Sediment Technologies for

Sauer Dump Site Table 32 Identification and Preliminary Screening of Groundwater Technologies for Sauer

Dump Site Table 33 Evaluation and Screening of Soil and Sediment Technology Process Options

(TPOs) for Sauer Dump Site Table 34 Evaluation and Screening of Groundwater Technology Process Options (TPOs)

for Sauer Dump Site Table 41 Individual Evaluation of Remedial Alternatives for Sauer Dump Site

LIST OF FIGURES

Figure 11 Site Location Map Figure 12 Site Detail Map Figure 13 Historic Sample Locations Figure 14 Extent of Contamination in Surface and Subsurface Soils Figure 15 Extent of Contamination in Sediments Figure 41 Alternative 2 Proposed Limits of Soil Excavation Figure 42 Alternatives 2 and 3 Proposed Extent of TSCA Cap Figure 43 Alternative 3 Proposed Limits of Soil Excavation Figure 44 Alternatives 3 and 4 Proposed Groundwater Interceptor Trench Locations Figure 45 Alternative 4 Proposed Limits of Soil Excavation

US EPA Region 3 Sauer Dump Site EECA iv HydroGeoLogic Inc April 2009

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LIST OF ACRONYMS AND ABBREVIATIONS

US EPA Region 3 Sauer Dump Site EECA v HydroGeoLogic Inc April 2009

AOC Area of Concern ARAR Applicable or Relevant and Appropriate Requirements BCHD Baltimore County Health Department bgs below ground surface BLRA Baseline Risk Assessment CAA Clean Air Act CERCLA Comprehensive Environmental Response Compensation and Liability

Act CFR Code of Federal Regulations COMAR Code of Maryland Regulations CWA Clean Water Act DOT Department of Transportation EECA Engineering EvaluationCost Analysis ENSAT Environmental Service and Technology Corporation EOCS Extent of Contamination Study EPA US Environmental Protection Agency ESTD Ex Situ Thermal Desorption FFS Focused Feasibility Study FRTR Federal Remediation Technologies Roundtable FS Feasibility Study GRA General Response Actions HGL HydroGeoLogic Inc IC Institutional Control ITRC Interstate Technology and Regulatory Council LDR Land Disposal Restrictions MDE Maryland Department of the Environment mgkg milligrams per kilogram MPRSA Marine Protection Research and Sanctuaries Act NAAQS National Ambient Air Quality Standards NCP National Oil and Hazardous Substances Pollution Contingency Plan NPDES National Pollutant Discharge Elimination System

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LIST OF ACRONYMS AND ABBREVIATIONS (continued)

US EPA Region 3 Sauer Dump Site EECA vi HydroGeoLogic Inc April 2009

NRWQC National Recommended Water Quality Criteria ORNL Oak Ridge National Laboratory OSHA Occupational Safety and Health Administration PA Preliminary Assessment PAH Polycyclic Aromatic Hydrocarbon PCB Polychlorinated Biphenyl ppm parts per million PRG Preliminary Remediation Goal PRP Potentially Responsible Party RCRA Resource Conservation and Recovery Act RI Remedial Investigation RSL Regional Screening Level SARA Superfund Amendments and Reauthorization Act SI Site Investigation SVOC Semivolatile Organic Compound TBC To Be Considered TPO Technology Process Option TSCA Toxic Substances Control Act VOC Volatile Organic Compound

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EXECUTIVE SUMMARY This Engineering Evaluation and Cost Analysis (EECA) has been developed for the Sauer Dump Site under Contract Number EP-S3-07-05 with Region III of the US Environmental Protection Agency (EPA) The purpose of this EECA is to develop and evaluate removal alternatives that may be feasible for addressing potential risks to human health and the environment posed by contaminated soils and sediments at the Site This EECA was prepared in accordance with the EPA guidance Conducting Non-Time-Critical Removal Actions Under CERCLA (1993) and is organized as follows

bull Section 1 summarizes the Site history and setting as well as current Site characteristics bull Section 2 identifies the removal objectives potential applicable or relevant and

appropriate requirements (ARARs) Preliminary Remedial Goals (PRGs) and the estimated areas and volumes of soils and sediments requiring remediation

bull Section 3 screens remedial technologies with the potential to remediate soilssediments and groundwater and identifies those technologies retained for the development of removal alternatives

bull Section 4 develops potential removal alternatives and evaluates each one in detail with respect to effectiveness implementability and cost This section also includes a comparative analysis of the removal alternatives

bull Section 5 summarizes the results of the EECA SUMMARY OF THE SITE CONDITIONS AND HISTORY The Sauer Dump Site is located adjacent to Lynhurst Road in Dundalk Baltimore County Maryland (Site) The former operational area of the Site is approximately 22 acres and is currently owned by the Wittstadt Hunting Club A majority of the Sauer Dump Site is located within Parcel 425 with samples indicating that some portions of Parcels 137 295 464 503 and 574 were also impacted by the former operations at the Site Some of these affected parcels contain structures that are used for residential purposes Residential properties border the Site to the north northwest east and southwest The southern boundary of the Site is a cove that is part of the Back River which is a tributary of the Chesapeake Bay Wetlands adjacent to this cove and extending along the east and west side of the former operational area are considered to be part of the impacted area The Site is former marshy land that was stabilized using fill material Non-tidal wetland areas within the Sauer Dump Site were formed by fill operations at the Site The groundwater gradient was observed to be towards the south (towards the Back River) The Site was acquired by Mr Fredrick Sauer (now deceased) and operated as an unpermitted dump and salvage yard beginning as early as the 1950s through the time of Sauerrsquos death in 1990 Dumping activities were limited after the nature of the Site came to the attention of the Baltimore County Health Department (BCHD) and the Maryland Department of the

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Environment (MDE) in 1984 The Sitersquos use as an unpermitted dump and salvage yard resulted in the release of hazardous materials The majority of the Site is covered with approximately 10 feet of fill consisting of soil and debris Mr Sauer was ordered by BCHD to close Site operations in 1984 and by September of 1985 the Site was graded and a majority of the material on-site had been removed MDE conducted a Preliminary Assessment (PA) in 1985 and EPA conducted a Site Investigation (SI) in 1986 The analytical data indicated contaminant concentrations in Site sediments soils and surface water that exceeded risk-based screening criteria Subsequent investigations confirmed soil sediment surface water and ground water contamination at concentrations above the respective risk-based screening criteria Site investigations conducted after the initial MDE and EPA work include

bull EPA Expanded Site Inspection (1991 ndash 1994) bull MDE Continued Site Investigations (1996 1999 and 2001) bull MDE Polychlorinated Biphenyl (PCB) Hot-Spot Delineation and Groundwater

Investigation (2002) bull MDE Data Gap Sampling Events (2004 and 2005) bull Extent of Contamination Study (2006-2007)

The primary contaminants in the Sitersquos surface soils subsurface soils and sediments are metals particularly lead and chromium and polychlorinated biphenys (PCBs) however volatile and semivolatile organic compounds (VOCs and SVOCs) were detected at elevated levels in multiple samples Previous Site investigation activities concluded that while most of the surface soils within the boundary of Parcel 425 had been impacted by Site contaminants there were two ldquoHot Spotsrdquo within the area One was located along the southeastern boundary of Parcel 425 where it joins Parcel 137 The other ldquoHot Spotrdquo was much smaller in size and was located in the south-central portion of the Site near the Back River wetlands Previous surface and subsurface soil sampling activities have shown that the access road to the Site (through Parcel 503 and 464) has been impacted by former Site activities Site contaminants have also been detected in the sediments located in the wetlands at the Site One of the ldquoHot Spotsrdquo previously discovered includes portions of the Southeast Finger wetlands which extend into Parcels 137 and 295 In addition elevated levels of Site contaminants have been detected in the Pond area and the Back River wetlands REMOVAL OBJECTIVES The following Removal Objectives were identified

bull Reduce exposure to non-carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

bull Reduce exposure to carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

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bull Reduce risks to human health and ecological communities exposed directly to chemicals in the soils and sediments and indirectly to these chemicals via bioaccumulation of Site contaminants in fish in the receiving waters

bull Minimize the further spread of contamination via any of the following major migration pathways deg Soils to groundwater deg Soils to surface water deg Soils to sediments deg Soils to air deg Groundwater to surface water and deg Sediments to surface water

PRELIMINARY REMEDIAL GOALS (PRGs) PRGs are concentrations used as initial cleanup goals to support the development and evaluation of different remedial approaches PRGs are not the final cleanup standards Sampling at the Site was conducted for a large suite of contaminants (Target Analyte ListTarget Compound List) that were the targets of investigation There were several detected contaminants which exceeded screening level ecological risk assessment values These screening values are not intended to be strictly used as clean up criteria and are intended to be conservative in nature in the early part of the risk assessment process Two contaminants (PCBs and lead) have been identified as primary risk drivers from a human health and ecological risk assessment perspective and also serve as potential markers to delineate areas for a removal action Furthermore evaluated remedial alternatives do not selectively address individual contaminants differentially from the perspective of chemical treatment or degradation The following PRGs were used to identify the area and volume of contaminated media to be addressed by the EECA

bull 400 milligrams per kilogram (mgkg)1 lead in soils bull 1 mgkg total PCBs in soils bull 1 mgkg total PCBs in sediments and bull 130 mgkg lead in sediments

The PRGs for lead and total PCBs in soils are consistent with other sites within EPA Region III where remediation goals of 400 mgkg lead and 1 mgkg PCBs in soils have been established based on results of those sitesrsquo baseline risk assessments The PRG for PCBs in sediments 1 mgkg is based on the practical engineering limitations of dredging technologies For sediments the lead PRG of 130 mgkg reflects consideration of Development and Evaluation of Consensus-Based Sediment Quality Guidelines for Freshwater Ecosystems (MacDonald et al 2000) as noted in the August 2007 Action Memorandum (EPA 2007)

1 Also referred to as parts per million (ppm)

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US EPA Region 3 Sauer Dump Site EECA ES-4 HydroGeoLogic Inc April 2009

The surface water PRGs are based on National Recommended Water Quality Criteria (NRWQC) The Freshwater Chronic values of 0000064 micrograms per liter (ugl)2 total PCBs and 81 ugl lead were selected for surface water at this Site Because groundwater at the Site will not be used as a source of drinking water the primary concern is to ensure that groundwater contaminants do not discharge to surface water at concentrations which would result in impairment of the surface water quality Accordingly the Freshwater Chronic NRWQC are also appropriate as the groundwater PRGs The surface water and groundwater PRGs are provided in Table 22 SOIL AND SEDIMENT VOLUME CALCULATION To determine the volume of soils and sediments requiring remediation chemical concentrations detected in soil and sediment samples were compared to the corresponding PRGs For the evaluation data from the following reports were used Environmental Service and Technology Corporation (ENSAT) Remedial Investigation (RI) and Focused Feasibility Study (FFS) July 2002 (ENSAT 2002a) ENSAT Remedial Investigation August 2005 (ENSAT 2005) and Malcolm Pirnie Extent of Contamination Study (EOCS) June 2007 (Malcolm Pirnie 2007) The lateral extent of soil contamination greater than PRGs was estimated from the surface soil data The available data indicate that portions of Parcels 137 295 425 464 503 and 574 are characterized by soil contamination in excess of the PRGs Subsurface data were used to estimate the vertical extent of contamination requiring remediation In general if no subsurface soil data were available the depth of contamination requiring remediation was assumed to be 8 feet below ground surface (bgs) In the southern portion of Parcel 425 a depth of 35 feet was assumed based on data defining the depth to groundwater On Parcel 137 an average remediation depth of 4 feet was assumed The estimated maximum volume of Site soils requiring remediation is 16760 cubic yards For sediments the remedial volume was based on an assumed remediation depth of 4 feet in areas with wetland vegetation It is estimated that a total of 7740 cubic yards of sediments will require remediation Additional sediment volumes from the Back River might require remediation but the only sample that showed concentrations greater than those proposed for the Site was collected in 1999 Submerged sediment samples have been collected 14 times from within the Back River at locations adjacent to the Sauer Dump Site Given the time span since this sample was collected (over nine years) the mobile nature of river sediments (especially in a tidal location) and natural attenuation the area is currently assumed to meet the PRGs Additional sampling of the Back River sediments should be performed to confirm that the sediments do not exceed the PRGs 2 Also referred to as parts per billion (ppb)

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TECHNOLOGY PROCESS SCREENING AND DEVELOPMENT OF ALTERNATIVES Technology Process Options (TPOs) representing a range of technology types with the potential to address at least some portion of the Site contamination were identified These TPOs were then screened based on their ability to treat Site wastes feasibility for implementation and relative costs of implementation Those TPOs that were retained from the initial screening steps were assembled into removal alternatives that could meet the removal objectives for the Site These removal alternatives were evaluated in terms of effectiveness implementability and cost The four alternatives selected for the detailed evaluation are described below Alternative 1 No Action The no action alternative is included as a baseline in the comparison of other alternatives as required by the National Oil and Hazardous Substances Pollution Contingency Plan (NCP) No removal activities or institutional controls (ICs) would be implemented under this alternative although some level of natural attenuation might occur Alternative 2 Surface Cap Excavation and Off-Site Disposal This alternative consists of the following components

bull Removal and off-site disposal of surface debris bull Clearing and grubbing of Parcel 425 and removal and disposal of materials bull Confirmation sampling to proceed concurrently with all excavation to ensure that

removal requirements are met bull Excavation of contaminated soils with PCBs greater than 100 ppm regardless of depth

and lead greater than 1000 ppm in the upper 2 feet would be excavated from Parcels 425 and 574 for proper off-site disposal

bull Excavation of all contaminated soils with PCBs greater than 1 ppm and lead greater than 400 ppm from the residential properties (Parcels 137 295 464 503 and portions of 574) adjacent to Parcel 425

bull Excavation of the contaminated sediments from the affected wetlands All sediments with PCBs greater than 1 ppm and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 ppm below that depth would be excavated

bull Previously collected data generally supports the conclusion that sediments in the Back River meet the PRGs Verification sampling of sediments along the Back River shoreline would be undertaken to assess the validity of that conclusion If PRGs are not met sediments with PCBs greater than 1 ppm and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 pm below that depth would be excavated

bull Excavated soils and sediments would be temporarily stockpiled in a staging area established on Parcel 425 Confirmation sampling from the stockpile would be performed to verify that PCB concentrations are less than 100 ppm and lead

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concentrations are less than 1000 ppm Soils and sediments meeting these criteria would be placed across the upland portions of Parcel 425 Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull After completion of excavation and confirmation sampling all excavated areas with the exception of Parcel 425 would be restored by backfilling and re-vegetation Parcel 425 would be re-graded and compacted after placement of the excavated soils and sediments and backfilled as required to maintain proper grade and drainage in preparation for construction of a TSCA soil cover

bull Construction of a TSCA compacted soil cover over the contaminated soils and sediments which exceed 1 ppm PCBs on Parcel 425

bull Installation of replacement monitoring wells if necessary and a monitoring program to monitor the effectiveness of the remediation effort and groundwater quality Groundwater monitoring would be conducted on a semi-annual basis for a four year period beginning after the construction activities are complete Constituents to be monitored include lead and PCBs and

bull Implementation of Institutional Controls to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area of the Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment This alternative includes the same elements as Alternative 2 with the following exceptions

bull Excavation of contaminated soils with PCBs greater than 10 ppm and lead greater than 400 ppm at any depth from Parcels 425 and 574 for proper off-site disposal

bull Excavation of the contaminated sediments from the affected wetlands All sediments with PCBs greater than 1 ppm and lead greater than 130 ppm would be excavated

bull Excavated soils and sediments with PCB concentrations less than 10 ppm and lead concentrations less than 400 ppm would be placed across the upland portions of Parcel 425 for capping Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull Installation of a groundwater collection system to control off-site migration of groundwater from the former dump area

bull Installation of a groundwater treatment system to remove lead and PCBs from the captured groundwater and discharge the water to the Back River

bull Implementation of long-term operation maintenance and monitoring for the groundwater collection and treatment system and

bull Implementation of Institutional Controls to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area

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of the Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment This alternative consists of the elements of Alternative 2 with the following additional components

bull No cap would be installed at the Site bull Excavation of contaminated soils with PCBs greater than 1 ppm and lead greater than

400 ppm at any depth from all parcels for proper off-site disposal bull Excavation of the contaminated sediments from the affected wetlands All wetland

sediments with PCBs greater than 1 ppm and lead greater than 130 ppm would be excavated for proper off-site disposal

bull Proper off-site landfilling of excavated soils with greater than 1 ppm and less than 500 ppm of PCBs

bull After completion of excavation and confirmation sampling all excavated areas would be restored

bull Installation of a groundwater collection and treatment system and associated long-term monitoring and maintenance as described for Alternative 3 and

bull Recordation of deed notices to ensure that groundwater use is restricted if necessary

ANALYSIS OF ALTERNATIVES Alternative 1 Effectiveness Because no action would be performed this alternative would not protect human health or the environment Current and future risks from soil and sediment contamination at the Site would not be significantly different from those that currently exist ARARs would not be met Because no action would be taken this alternative does not pose any risks associated with implementation Implementability Because no action would be taken this alternative could be implemented easily Costs There are no costs associated with Alternative 1 Alternative 2 Effectiveness This alternative provides effective long-term protection of human health and the environment by either removing the contaminated materials or eliminating the potential contact pathway The removed materials would be disposed in an off-site landfill or incinerated at a permitted off-site facility Alternative 2 would decrease soil and sediment

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contaminant mobility toxicity and volume Installation of a TSCA cap would reduce the potential for erosion of soils and prevent dermal contact with contaminated soils The cap would also minimize the infiltration of liquids through the contaminated soils remaining at the Site Implementation of ICs would also increase the long term protectiveness of this alternative Installation of a fence around the capped area of the Site would effectively restrict access to the Site The requirement for deed notices would ensure that any potential future purchaser of the property comprising the Site would be aware that contamination remains on the Site and of the necessity for maintaining the cap and the fence This alternative would comply with ARARs provided the entire Site is classified as a single Area of Concern (AOC) to meet land disposal restriction (LDR) criteria in TSCA and the Resource Conservation and Recovery Act (RCRA) (see Section 221) This alternative would also meet the risk-based criteria of the TSCA regulations at 40 CFR sect 76161(c) Alternative 2 would provide limited control of groundwater interaction with soils and sediments below the compacted soil cap Any soil contamination remaining below the capped areas could come in contact with the tidally influenced groundwater While Alternative 2 would not initially provide for groundwater treatment if the monitoring program implemented as part of this alternative indicated that unacceptable levels of Site contaminants are impacting the groundwater andor the Back River a groundwater capture and treatment system could be put in place to address the problem Implementability This alternative could be implemented with standard construction equipment and readily available materials and labor No major technical difficulties are anticipated in implementing this alternative and it could be implemented within a relatively short period of time Currently there are only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 mgkg These facilities are in Texas or Utah necessitating the use of long distance truck transportation The risk associated with off-site transport is the potential for contamination to spread through spills or accidents Also long-term administrative resources would be required to ensure compliance with the ICs and maintenance of the cover Cost The cost calculations for Alternative 2 are presented in Appendix B-1

bull The capital cost for Alternative 2 is estimated to be $ 531 Million

bull The present worth OampM cost is approximately $ 729000

bull The total project cost (present worth) is estimated to be $ 604 Million

Alternative 3

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Effectiveness Alternative 3 would be more effective at reducing risks related to Site contamination than Alternative 2 because soils with PCB concentrations greater than 10 ppm (instead of 100 ppm) or lead concentrations greater than 400 ppm (instead of 1000 ppm) would be removed from the Site Additionally Alternative 3 would provide controls to prevent off-site migration of groundwater from beneath the compacted soil cap The excavation and off-site disposal of additional contaminated soils and sediments and the construction of a groundwater collection and treatment system would increase short-term impacts including increased construction activities and truck traffic Alternative 3 would comply with ARARs As in Alternative 2 the Site would be considered a single AOC with respect to LDR compliance The groundwater collection and treatment system would have the added benefit of preventing the potential migration of contaminated groundwater to the wetland areas and surface waters Alternative 3 would decrease contaminant mobility toxicity and volume in both the groundwater and soilssediments Implementation of ICs would also increase the long term protectiveness of this alternative Installation of a fence around the capped area of the Site would effectively restrict access to the Site The requirement for deed notices would ensure that any potential future purchaser of the property comprising the Site would be aware that contamination remains on the Site and of the necessity for maintaining the cap and the fence Implementability Alternative 3 would be somewhat more difficult to implement than Alternative 2 because of the additional excavation of soils and sediments that would be required Currently there are only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 mgkg These facilities are in Texas or Utah necessitating the use of long distance truck transportation The risk associated with off-site transport is the potential for contamination to spread through spills or accidents and this risk would be increased with this alternative because of the additional loads of contaminated soils and sediments that would need to be transported off-site for disposal This alternative would also require the construction of a groundwater collection treatment and discharge system While a National Pollutant Discharge Elimination System (NPDES) permit would not be required to discharge the treated groundwater to the Back River it would be necessary to comply with the substantive requirements of 40 CFR Part 122 For groundwater the treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively making it difficult if not impossible to achieve the required level of treatment for PCBs Additional long-term administrative resources would be required to ensure compliance with the ICs as well as maintenance of the cover system and fence and maintenance and monitoring of the collection and treatment system It would also take longer to implement this alternative than it would for Alternative 2 because of the increased excavation and construction activities required Cost The cost calculations for Alternative 3 are presented in Appendix B-2

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The capital cost for Alternative 3 is estimated to be $ 777 Million

The present worth OampM cost is approximately $ 163 Million

The total project cost (present worth) is estimated to be $ 939 Million

Alternative 4 Effectiveness Because all soils and sediments with contamination concentrations above the PRGs would be removed from the Site Alternative 4 would provide the greatest long-term protection to human health and the environment and more effective control of contaminant migration relative to the other alternatives As with Alternative 3 the groundwater collection and treatment system would prevent the potential migration of residual contaminated groundwater to the wetland areas and surface waters Alternative 4 shares the same short-term excavation and transportation impacts identified for Alternative 3 however truck traffic would be greatly increased This alternative would decrease contaminant mobility toxicity and volume and would comply with ARARs Implementability Because all soils would be disposed off-site there would be a significant increase in truck traffic relative to the other alternatives The risk associated with off-site transport is the potential for contamination to spread through spills or accidents and this risk would be greatly increased with this alternative because of the significant number of additional loads of contaminated soils and sediments that would need to be transported off-site for disposal In addition there are currently only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 mgkg These facilities are in Texas or Utah necessitating the use of long distance truck transportation Public opposition to the traffic impacts from the extensive off-site transportation requirements of this alternative could potentially make implementability more difficult than for Alternatives 2 and 3 This alternative would also require the construction of a groundwater collection treatment and discharge system and would require compliance with the substantive requirements of a NPDES permit For groundwater the treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively making it difficult if not impossible to achieve the required level of treatment for PCBs It would take considerably longer to implement this alternative than it would to implement Alternative 2 Additional long-term administrative resources would be required to ensure compliance with any ICs determined to be necessary as well as maintenance and monitoring of the collection and treatment system Cost The cost calculations for Alternative 4 are presented in Appendix B-3

The capital cost for Alternative 4 is estimated to be $ 1141 Million

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The present worth OampM cost is approximately $ 132 Million

The total project cost (present worth) is estimated to be $ 1272 Million

COMPARATIVE ANALYSIS AND RECOMMENDED ALTERNATIVE Alternative 1 No Action would not be an effective alternative This alternative would not protect human health or the environment would not prevent contaminant migration and would not comply with ARARs Alternatives 2 3 and 4 would provide generally effective approaches to the protection of human health and the environment All three alternatives would comply with ARARs although Alternatives 2 and 3 rely on the classification of the entire Site as a single Area of Concern Alternative 2 would address the interaction and discharge of groundwater with Site contaminants that are left under the capped areas through monitoring rather than collection and treatment Alternative 2 would also allow more contaminated materials (PCBslt100 ppm and lead lt1000 ppm) to remain on the Site (albeit under a TSCA cap) than the other alternatives Alternatives 2 3 and 4 would eliminate the soil exposure pathways which contribute to the unacceptable human health and ecological risks but Alternatives 2 and 3 would require the ongoing maintenance of a cap to ensure that the pathway remains blocked All three of these alternatives would prevent continued migration of soil and sediment contaminants although again Alternatives 2 and 3 would require cap maintenance to ensure that migration is prevented in the long term Because it would require the removal and off-site disposal of the most highly contaminated material (down to 1 ppm PCBs and 400 ppm lead) Alternative 4 would provide the highest degree of long-term protection Alternatives 2 3 and 4 each would pose short-term risks to workers and the community These risks however could be mitigated through use of engineering controls personal protective equipment and vapordust suppression measures Alternative 4 would pose the greatest short-term risks because of the significant increase in excavation activities and truck traffic required Alternative 2 would pose the least short-term risks Alternatives 2 and 3 would decrease but not eliminate contaminant mobility and would reduce contaminant toxicity and volume Alternative 4 would eliminate contaminant mobility and would reduce contaminant toxicity and volume Alternatives 2 and 3 would provide additional protection of human health and the environment through the implementation of ICs The implementability evaluation indicated that Alternative 4 would be the most difficult to implement and would take the longest amount of time to implement because of the need for greater excavation of soils and sediments and off-site disposal of all contaminated soils and sediments Alternatives 3 and 4 would be difficult to implement because the PRGs for groundwater may be impossible to meet Aside from the No Action Alternative Alternative 2 would be the easiest to implement

US EPA Region 3 Sauer Dump Site EECA ES-11 HydroGeoLogic Inc April 2009

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HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA ES-12 HydroGeoLogic Inc April 2009

Alternative 2 with a total present worth of $604 million would be less expensive than Alternatives 3 and 4 Alternative 4 has the both the highest degree of protectiveness and the greatest estimated cost $ 1272 million Alternative 3 would provide a high degree of protection at a cost of $ 939 million Based on the comparison performed as part of this evaluation all the alternatives appear to be generally protective with Alternative 4 appearing to be the most protective as well as the most difficult to implement and the most costly The incremental cost increases (approximately 55 between Alternatives 2 and 3 and 35 between Alternatives 3 and 4) are accompanied by increases in overall protectiveness that are difficult to quantify accurately and in the case of the groundwater pathway may be difficult or impossible to achieve Alternative 2 appears to be the most easily implemented and least costly protective approach for this Site

AR103642

ENGINEERING EVALUATIONCOST ANALYSIS SAUER DUMP SITE

DUNDALK MARYLAND

10 INTRODUCTION

This Engineering Evaluation and Cost Analysis (EECA) has been developed for the Sauer Dump Site (Site) a former unlicensed dump and salvage yard located in Dundalk Maryland (Figure 11) This EECA has been prepared by HydroGeoLogic Inc (HGL) under Contract Number EP-S3-07-05 with Region III of the US Environmental Protection Agency (EPA) in accordance with Tasks 12 and 13 of Work Assignment 020NSEE03EW

11 PURPOSE AND ORGANIZATION OF THE REPORT

The purpose of this EECA Report is to develop and evaluate removal action alternatives to address potential risks to human health and the environment posed by contaminated sediments and soils at the Sauer Dump Site The scope of this EECA is based on discussions with EPA and information obtained from previous Site investigations performed by other consultants This document has been prepared in accordance with the requirements of the NCP 40 Code of Federal Regulations (CFR) Part 300 regulations for implementing the Comprehensive Environmental Response Compensation and Liability Act (CERCLA) as well as the EPA guidance Conducting Non-Time-Critical Removal Actions Under CERCLA (EPA 1993) The EECA is organized as follows

bull The subsequent subsections of Section 1 summarize Site history and setting as well as current Site characteristics

bull Section 2 identifies the removal objectives potential applicable or relevant and appropriate requirements (ARARs) Preliminary Remedial Goals (PRGs) and the estimated areas and volumes of sediments and soils requiring remediation

bull Section 3 identifies and screens technologies with the potential to address the soilssediments and groundwater contamination

bull Section 4 describes the removal alternatives developed from the technologies retained in Section 3 Section 4 also contains a detailed and comparative analysis of the removal alternatives

bull Section 5 summarizes the results of the EECA

12 SITE BACKGROUND

Background information on the Sauer Dump Site is summarized below Additional background material can be found in the July 2002 Remedial Investigation (RI) and Focused Feasibility Study (FFS) prepared by Environmental Service and Technology Corporation (ENSAT)

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(ENSAT 2002a) and in the June 2007 Extent of Contamination Study (EOCS) Report prepared by Malcolm Pirnie (Malcolm Pirnie 2007) The majority of the Site is located within Parcel 425 with some portions of Parcels 137 295 464 503 and 574 impacted by andor included in the former operations at the Site A Site map showing the parcel boundaries along with the locations and designations of the wetland areas is included as Figure 12

121 Site Location and Description

The Sauer Dump Site is located behind and adjacent to residential properties on Lynhurst Road Dundalk Baltimore County Maryland The area is a mixture of residential and undeveloped properties The Site is estimated to be 57 acres (including portions of surrounding parcels that are known to have been impacted by the contamination) in size and the main property (Parcel 425) is currently owned by the Wittstadt Hunting Club Some of the affected parcels include structures that are used for residential purposes A precise determination of the Site boundaries is not possible at this point because the existing data do not sufficiently delineate the areal extents of the Site contamination Parcel 425 is largely vegetated with tall grasses reeds trees and scrub brush and is surrounded by a chain-link fence to control access to the Site Two gates located along the northern and southern perimeters of the fence are locked to prevent unauthorized access Parcel 425 is former marshy land that was stabilized using fill material There is a ponded area located to the northwest of Parcel 425 The southern boundary of the Site is a cove that is part of the Back River which is a tributary of the Chesapeake Bay (Figure 11) Wetlands adjacent to this cove and extending along the east and west side of the former operational area are considered to be part of the impacted area Previous Site investigations concluded that the wetlands onsite that are not tidally influenced were formed by fill operations within the Sauer Dump Site Past Site operations have impacted an estimated 144 acres of wetlands surrounding the upland portions of the Site The vegetation observed within the wetlands is predominantly reeds (Phragmites ndash an invasive species)

122 Site Operational History

According to previous reports the main portion of the Site was owned by Mr Fredrick Sauer (now deceased) and was operated as an unpermitted dump and salvage yard beginning as early as the 1950s and continuing until Sauerrsquos death in 1990 Activities at the Site were limited in the mid-1980s when the nature of the Site came to the attention of the Baltimore County Health Department (BCHD) and the Maryland Department of the Environment (MDE) Based on soil sediment surface water and groundwater data the Sitersquos use as an unpermitted dump and salvage yard resulted in the release of hazardous materials

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13 PREVIOUS SITE INVESTIGATIONS

131 MDE and EPA Initial Site Investigations

To address concerns raised by BCHD about the Site two Site Investigations were performed between 1985 and 1986 MDE conducted a Preliminary Assessment (PA) and Site Investigation (SI) and EPA conducted a SI During the investigations salvage and dump operations were observed on Site and in portions of the surrounding residential area The Site was observed to be relatively flat with mounds of dumped domestic and construction debris burned paint waste and several charred areas Salvage items observed during the Site investigations included scrap metal empty tanks and drums abandoned trucks open roll-off containers construction equipment concrete conduit wood chips and abandoned automobiles An oily sheen was observed on-site and in the adjacent wetlands The BCHD ordered Mr Sauer to close Site operations in 1984 By September of 1985 a majority of the material on-site had been removed However later observations indicated that dumping and salvage operations continued until Sauerrsquos death in 1990 During Site Investigation activities soil sediment and surface water samples were collected and analyzed for VOCs SVOCs total metals pesticides and PCBs The data indicated the presence of these analytes at concentrations greater than the risk-based screening criteria

132 MDE Site Investigation (1990)

In 1990 surface soil and sediment samples were collected from the Site The samples were analyzed for VOCs total metals pesticides and PCBs Metals and PCBs were detected at concentrations exceeding the risk-based screening criteria During Site Investigation activities piles of scrap metal tanks and a three-to-eight foot deep pile of rubblefill were observed at the Site

133 EPA Expanded Site Inspection

An expanded Site inspection was conducted by EPA between 1991 and 1994 Soil sediment and surface water samples were collected and analyzed for VOCs SVOCs total metals pesticides and PCBs Analytical results indicated contamination of all three media at concentrations greater than the risk-based screening criteria During the expanded Site inspection activities field personnel observed that a majority of the Site had been covered to an approximate 10 foot depth with fill and debris Debris included a tractor trailer concrete bricks rebar tires drums furniture a curing oven broken asphalt empty 55-gallon drums and a 1000-gallon storage tank Oil sheens were observed in the wetlands

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134 MDE Investigations (1996-2005)

Between 1996 and 2005 MDE completed the following field investigations

bull In 1996 soil sediment and surface water samples were collected and analyzed for metals and PCBs

bull In 1999 soil sediment surface water and groundwater samples were collected and analyzed for VOCs SVOCs metals pesticides and PCBs Surface water and groundwater samples were analyzed for total metals and dissolved metals

bull In 2001 five shallow monitoring wells were installed Soil sediment and groundwater samples were collected and analyzed for VOCs SVOCs metals pesticides and PCBs The groundwater samples were analyzed for total and dissolved metals A topographic survey of the Site and the surrounding lands was conducted

bull In 2002 surface water groundwater and soil samples were collected and analyzed for PCBs Field based screening assays were used to delineate PCB contamination in Site soils Water level monitoring was performed to assess the extent of tidal influence on the Site groundwater A wetlands survey was also completed

bull In 2004 soil samples were collected and analyzed for metals SVOCs pesticides and PCBs

bull In 2005 soil samples were collected and analyzed for PCBs The analytical results of these investigations indicated the presence of VOC SVOC metals pesticide and PCB contamination at concentrations greater than risk-based screening levels The primary contaminants were identified as lead and PCBs Based on the laboratory and field data two PCB ldquoHot Spotsrdquo were identified (one in the southeast and one in the south-central portion of the Site) Groundwater monitoring data indicated that the local groundwater gradient is towards the Back River However tidal influences have been observed in the pond and in four of the five ground water monitoring wells located on the Site

135 Extent of Contamination Study

In 2007 the Potentially Responsible Partiesrsquo (PRPsrsquo) contractor (Malcolm Pirnie) performed soil sediment and groundwater sampling activities to address data gaps identified from previous Site investigations Data gaps that were identified included

bull Delineation of PCB and lead contamination on Parcel 137 bull Background data for surface and subsurface soils east of the Site bull Surface soil analytical data for Parcels 503 and 464 bull Collection of additional sediment samples for PCB and lead analyses and bull Collection of surface water and groundwater samples

Site reconnaissance was performed prior to the initiation of sampling activities The results of these field activities are described below

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1351 Site Reconnaissance

An initial Site reconnaissance visit was performed by Malcolm Pirnie in December 2006 to determine the existing Site conditions Observations of the Site visit are listed below

bull Monitoring well MW-1 could not be located bull The Site was heavily vegetated bull The well annulus around monitoring well MW-4 was left open which might have

compromised the integrity of the well and bull Some of the proposed sampling locations were in asphalt-covered areas

Based on the observations from the initial Site visit a second Site visit was performed in January 2007 prior to the start of sampling activities During this Site visit the final planned locations of the field samples were identified In addition it was determined that all Site monitoring wells with the exception of MW-1 were compromised and should be overdrilled Because MW-1 could not be located this well was identified as requiring re-installation

1352 Soil and Sediment Sampling

In January 2007 32 surface soil and nine subsurface soil samples were collected The surface soil samples were analyzed for lead and PCBs The subsurface soil samples were collected from two to three feet bgs and analyzed for lead PCBs VOCs and SVOCs Nine sediment samples were collected with seven from the wetlands one from the pond area and one from the Back River The sediment samples were collected from the top six inches of sediments below the organic build-up and were analyzed for lead and PCBs The most commonly detected PCB compound was Aroclor 1260 which was detected in 25 of the 32 surface soil samples and eight of the nine subsurface soil samples Lead was detected in all of the surface and subsurface soil samples The highest lead and PCB concentrations were observed in the samples collected from the ldquoHot Spotrdquo locations Low concentrations of VOCs and SVOCs were detected in several of the subsurface soil samples

1353 Surface Water Sampling

In January 2007 two surface water samples were collected from the Back River shoreline These samples were co-located with sediment samples DG-SD08-05 and DG-SD09-05 The samples were collected soon after the peak of high tide and prior to sediment sampling activities to minimize elevated turbidity readings from re-suspended sediments The filtered and unfiltered surface water samples were analyzed for lead and PCBs Using EPA Method 8082 no PCBs were detected in the unfiltered and filtered samples Using the congener method (EPA Method 1668) PCBs were detected at low concentrations in both the filtered and unfiltered samples Lead was detected in one filtered sample and both unfiltered samples

US EPA Region 3 Sauer Dump Site EECA 1-5 HydroGeoLogic Inc April 2009

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1354 Groundwater Monitoring Well Installation and Sampling

Well installation activities occurred in January 2007 Five wells were installed using the hollow stem auger method and were constructed of two-inch diameter polyvinyl chloride casing and screen In February 2007 groundwater samples were collected from the five monitoring wells and analyzed for total and dissolved lead and PCBs PCBs were detected only in the unfiltered sample from well MW-4 when the samples were analyzed using EPA Method 8082 When the samples were analyzed using EPA Method 1668 PCBs were detected in the filtered and unfiltered samples from all five wells Lead was detected in three unfiltered samples but not in any of the filtered samples

14 NATURE AND EXTENT OF CONTAMINATION

The analysis of the nature and extent of contamination as presented in this EECA is based on the soil and sediment data provided in the reports for the previous investigations identified in Section 13 The locations of the samples collected as part of these investigations are presented on Figure 13 Over the course of the 22 years of Site investigations and assessments 132 surface soil samples 216 subsurface soil samples 67 sediment samples 47 surface water and 28 groundwater samples have been collected (including duplicate field samples and quality control samples) The samples were collected from Parcels 137 295 425 464 503 and 574 The analytical results for the surface soil subsurface soil sediment surface water and groundwater samples are included in Appendix A as Tables A1 through A5 The nature and extent of contamination in Site soils and sediments are briefly summarized in the subsections below Because of the lack of ldquocleanrdquo perimeter samples (ie those showing no contamination or only background concentrations of Site contaminants) a precise delineation of the areal extents of the Site contamination could not be derived The impacted area referred to in this report should therefore be viewed as the estimated minimum extent of contamination

141 Surface and Subsurface Soil Contamination

The primary soil contaminants at the Site are metals (particularly lead) and PCBs Previous Site Investigation activities concluded that while most of the surface soils within the boundary of Parcel 425 had been impacted to some extent by Site contaminants there were two PCBlead ldquoHot Spotsrdquo within the area One was located along the southeastern boundary of Parcel 425 adjacent to Parcel 137 This ldquoHot Spotrdquo included portions of the Southeast Finger wetlands The other ldquoHot Spotrdquo was much smaller in size and was located in the south-central portion of the Site near the Back River wetlands PCB concentrations in the larger of these ldquoHot Spotsrdquo exceeded 1000 milligrams per kilogram (mgkg) with a maximum detection of 33000 mgkg Across the majority of the Site including the adjacent affected parcels PCB concentrations were substantially lower (orders of magnitude) than those observed in the ldquoHot Spotsrdquo

US EPA Region 3 Sauer Dump Site EECA 1-6 HydroGeoLogic Inc April 2009

AR103648

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Lead concentrations greater than 1000 mgkg and some detections even greater than 10000 mgkg were observed in the soil samples Other metals including arsenic chromium selenium vanadium and zinc were detected at substantially elevated concentrations Previous surface and subsurface soil sampling activities have shown that the access road to the Site and other areas of Parcel 503 and 464 have also been impacted by former Site activities along with areas of Parcel 137 Parcel 295 and Parcel 574 The extent of soil contamination above PRGs is presented graphically on Figure 14

142 Sediment Contamination

The primary sediment contaminants are also metals particularly lead and PCBs Multiple sediment samples had lead concentrations in excess of 500 mgkg Elevated concentrations of arsenic chromium and selenium were also detected in several sediment samples One of the aforementioned ldquoHot Spotsrdquo includes portions of the Southeast Finger wetlands which extend into Parcels 137 and 295 In addition elevated concentrations of Site contaminants have been detected in sediments from the Pond area and the Southwest Finger wetlands (located primarily on Parcel 574) and in the wetlands adjacent to the Back River Contaminant concentrations in excess of the PRGs were also detected in one Back River sediment sample that was collected in 1999 but given the time span since this sample was collected (over nine years) the mobile nature of river sediments (especially in a tidal location) natural attenuation and the presence of adjacent samples that do not exceed the PRGs additional sampling should be performed to determine whether and to what extent remediation of these sediments would be needed The extent of sediment contamination greater than PRGs is presented graphically on Figure 15

15 CONTAMINANT FATE AND TRANSPORT

This section summarizes the potential fate and transport pathways for the soil and sediment contaminants Detailed discussion of contaminant fate and transport including chemical-specific fate and transport characteristics can be found in the EOCS Report (Malcolm Pirnie 2007) The original contaminant sources were the waste and debris dumped at the Site The historical reports indicate that the majority of the surface and subsurface waste and debris has been removed from the Site However the debris which remains at the Site could be a continuing source of contamination In addition contaminated soils and sediments act as a source of contamination for groundwater and surface water The contaminated soils might also be a continuing source for sediment contamination Potential migration pathways include surface soil erosion precipitation infiltration surface water flow sediment movement and groundwater flow Each of the potential migration pathways is briefly described below Contaminants in surface soils could migrate by erosion and overland flow during storm events or by leaching with infiltrating precipitation The primary contaminants metals and PCBs

US EPA Region 3 Sauer Dump Site EECA 1-7 HydroGeoLogic Inc April 2009

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US EPA Region 3 Sauer Dump Site EECA 1-8 HydroGeoLogic Inc April 2009

tend to associate with soil particles causing them to be more susceptible to erosion Contaminants associated with soil particles might also become entrained in air if dust is generated Wind can transport these airborne particulates The potential for dust emissions depends upon the extent to which the Site is vegetated Volatile compounds in soils may volatilize into ambient air Soluble contaminants could leach from surface soils to subsurface soils with infiltrating precipitation This leaching process can transport the contaminants to the groundwater Once dissolved within the groundwater the contaminants will migrate via advection dispersion and diffusion Sorption to or association of contaminants with solid surfaces can retard the leaching of contaminants to and transport of contaminants within the groundwater Contaminants sorbed to sediment particles could be transported by erosional processes during storm events Contaminants dissolved in the water contained within the sediment interstitial spaces will move with the water flux through the sediments For sediments along the Back River shoreline associated contaminants might dissolve directly into the surface water and migrate with the riverrsquos flow The Site contaminants can also be transformed by a variety of processes Metals may be transformed to more or less soluble forms by changes in reductive oxidation (redox) conditions Metals and organic compounds can also accumulate in the tissues of plants and animals Some organic compounds might be degraded by microbial or chemical processes The primary organic contaminant PCBs tends to be recalcitrant to degradation reactions

16 SUMMARY OF BASELINE RISK ASSESSMENT

As part of the MDE 2002 Site Investigation a Baseline Risk Assessment (BLRA) was prepared (ENSAT 2002b) The BLRA assessed potential threats to non-residential receptors (adult visitor youth visitor child visitor and construction worker) exposed to the Site contaminants Exposure of these receptors to soil contaminants was associated with potential cancer risks greater than 1E-04 and hazard indices greater than 1 The potential effects due to lead exposure were not quantified However the BLRA noted that some lead detections significantly exceeded the recommended residential soil screening value of 400 mgkg and concluded that there was potential for the lead contamination to cause adverse effects The BLRA determined that exposure of the child visitor to contaminants in the Site sediments resulted in a non-cancer Hazard Index (HI) greater than 1 indicating the potential for adverse effect The BLRA did not include an analysis of potential effects of soil contaminants on ecological receptors The sediment data were screened against ecological benchmarks Based on this screening the BLRA concluded that the PCBs in sediments might pose a threat to ecological receptors

AR103650

FIGURES

AR103651

XEPA010SauerCost_Analysis_Draftlocation_mapmxdMap Source USGS Quadrangle MapMiddle River MD 1996111008 PD Figure 11

Site Location Map

Former Sauer Dump

HGLmdashRevised Draft Engineering EvaluationCost Analysis Former Sauer Dump and Salvage YardmdashDundalk Maryland

[_

FormerSauer Dump

MARYLAND

General Location Inset

0 50 100

Miles

0 3000 60001500

SCALE IN FEETsup3

AR103652

Parcel 425

Parcel 137

Parce

l 295

Parce

l 464

Parce

l 503

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

XEPA010SauerCost_Analysis_Draftsite_mapmxdMap Source NAIPMiddle River MD 2007111008 PD

Figure 12Site Detail Map

HGLmdashRevised Draft Engineering EvaluationCost Analysis Former Sauer Dump and Salvage YardmdashDundalk Maryland

sup3 0 100 20050

SCALE IN FEET

Legend

Surveyed Wetlands(ENSAT 2005)

Parcel Boundary

AR103653

Figure 13Historic

Sample Locations

HGLmdashRevised Draft Engineering EvaluationCost Analysis Former Sauer Dump and Salvage YardmdashDundalk Maryland

Legend

XEPA010SauerCost_Analysis_DraftHistoric_Sample_Loc_LmxdMap Source NAIPMiddle River MD 2007111008 PDsup3

$+

$+

$+

$+

$+

$+

$+$+

$+$+

$+

$+$+

$+

$+

$+

$+

$+$+

$+$+

$+$+$+$+

$+ $+$+

$+

$+$+

$+$+

$+$+

$+

$+ $+

$+

$+

$+

$+

$+$+$+$+$+

$+$+$+

$+$+

$+

acute

acute

acute

acute

acute

(

( (((

(

((

XW

XW

XW

XW

XW

XW

XW

XWXW

XWXW

XW

XWXWXWXWXWXWXW XW XW

XWXWXWXWXWXWXWXWXWXWXW

XWXWXWXWXWXWXWXWXW

XWXWXWXWXWXW

XW

XW

Parcel 425

Parcel 137

Parcel 2

95Parcel 4

64Parcel 5

03

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 120 24060

SCALE IN FEET

Surveyed Wetlands(ENSAT 2005)

Parcel Boundary

Surface and Subsurface Soil SampleXW

Groundwater Sample

Surface Water Sample(

Surface Soil Sample

Subsurface Soil Sample

Sediment Sample$+

AR103654

Legend

Figure 14Extent of Contamination

for Soils(Surface and Subsurface)

XEPA010SauerCost_Analysis_DraftSoils_Contamination_11x17mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

XW

XW

XW XWXWXWXWXW XW

XW

XW

XWXWXWXWXWXWXWXWXWXW

XW

XWXWXW

XWXWXW

XWXW

XW

XW

XW

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Subsurface Soil Sample Exceeding PRG

Surface Soil Sample Exceeding PRG

Parcel Boundary

Surveyed Wetlands(ENSAT 2005)

NotesAll soil samples shown on figure contained oneor more PRG exceedances

Grid Soil Samples

Surface and Subsurface Soil SampleExceeding PRGXW

AR103655

Legend

Figure 15Extent of Contamination

in Sediment

XEPA010SauerCost_Analysis_DraftSediment_Contamination_11x17bmxdMap Source NAIPMiddle River MD 2007022609 PD

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

$

$

$

$

$$

$

$

$

$$

$$$

$$

$

$

$$

$

$$

$

$

$$

$

+

+

+

+

++

+

+

+

++

+++

++

+

+

++

+

++

+

+

++

+

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$

$$$

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+++

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

Surveyed Wetlands(ENSAT 2005)

Sediment Samplewith Lead lt 130 ppmand PCBs lt 100 ppm

$+

Sediment Samplewith Lead gt 130 ppmor PCBs gt 100 ppm

$+

Proposed Limits of Excavationfor Sediment

AR103656

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

20 REMOVAL OBJECTIVES

This section identifies the removal objective and goals for the Site The removal objectives are described in Section 21 This is followed by identification of the potential ARARs with which the selected removal alternative must comply To provide target cleanup levels that ensure the removal objectives will be met quantifiable PRGs are then presented Finally these PRGs are used to estimate the volume of contaminated materials that might require remediation

21 REMOVAL OBJECTIVES

The following removal objectives were identified

bull Reduce exposure to non-carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

bull Reduce exposure to carcinogens in the soils and sediments via the potential exposure routes of inhalation ingestion and dermal contact

bull Reduce risks to human health and ecological communities exposed directly to chemicals in the soils and sediments and indirectly to these chemicals via bioaccumulation in fish in the receiving waters

bull Minimize the further spread of contamination via any of the following major migration pathways deg Soils to groundwater deg Soils to surface water deg Soils to sediments deg Soils to air deg Groundwater to surface water and deg Sediments to surface water

22 IDENTIFICATION OF POTENTIAL APPLICABLE OR RELEVANT AND APPROPRIATE REQUIREMENTS

The EPA document Conducting Non-Time-Critical Removal Actions Under CERCLA (1993) specifies that the EECA should evaluate each removal alternative in terms of its ability to comply with the substantive standards of potential ARARs Federal and state regulations were reviewed to identify potential ARARs and To Be Considered (TBC) criteria ARARs include

bull Any standard requirement criterion or limitation under any Federal environmental law such as the Toxic Substances Control Act (TSCA) the Clean Air Act (CAA) the Clean Water Act (CWA) the Marine Protection Research and Sanctuaries Act (MPRSA) and the Resource Conservation and Recovery Act (RCRA)

bull Any promulgated standard requirement criterion or limitation under a state environmental or facility siting law including those contained in EPA-approved programs which has been identified by the state to EPA in a timely manner

US EPA Region 3 Sauer Dump Site EECA 2-1 HydroGeoLogic Inc April 2009

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HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

ARARs consist of two sets of requirements those that are applicable and those that are relevant and appropriate Applicable requirements are those substantive standards that specifically address the situation at a CERCLA site However an applicable requirement need not have been promulgated specifically to apply to CERCLA sites When making a determination of the applicability of a requirement the site circumstances are compared to the following jurisdictional prerequisites

bull Who is subject to the statute or regulation bull What types of substances or activities fall under the authority of the statute or

regulation bull What is the time period for which the statute or regulation is in effect and bull What types of activities does the statute or regulation require limit or prohibit

If this comparison indicates that the site circumstances are consistent with these prerequisites the requirement is applicable Requirements that are not applicable must be evaluated further to determine whether they are relevant and appropriate Requirements that address situations sufficiently similar to the proposed response action and are well suited to the conditions of the site are considered to be relevant In some cases only portions of a requirement will be both relevant and appropriate In addition to the ARARs information that is provided in certain federal and state criteria advisories guidance and proposed standards though not legally enforceable can be helpful in selecting a removal action andor determining how protective the removal action will be These ldquoto be consideredrdquo (TBC) requirements complement the use of ARARs but do not compete with or replace them (EPA 1992) Potential chemical-specific location-specific and action-specific ARARs for the Site along with potential TBC requirements are summarized in Table 21 These ARARs and TBC requirements are considered potential because they become final only after the EECA is approved and issued The following sections provide additional details on potential federal and state ARARs and TBC requirements for the Site

221 Chemical-Specific ARARs

As stated in 52 Federal Register 32496 chemical-specific ARARs typically ldquoset health or risk-based concentration limits or discharge limitations in various environmental media for specific hazardous substances pollutants or contaminantsrdquo These ARARs may address contaminants in the specific media of concern (soils and sediments in this case) or contaminants in waste streams generated by a removal alternative The potential chemical-specific ARARs are described below

Toxic Substances Control Act - TSCA regulates chemical substances and mixtures whose manufacture processing distribution or disposal might present an unreasonable risk of injury

US EPA Region 3 Sauer Dump Site EECA 2-2 HydroGeoLogic Inc April 2009

AR103658

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

to human health and the environment Portions of TSCA (specifically 40 CFR Part 761) address PCB cleanup levels remediation methods and remediation waste and are applicable to this Site 40 CFR sect 76161 provides cleanup and disposal options for PCB remediation waste and includes self-implementing procedures for a general moderately-sized site where there should be low residual environmental impact from remedial activities 40 CFR sect 76161(a)(1) indicates that the listed ldquoself-implementing proceduresrdquo are not binding on CERCLA actions and may not be used without prior EPA approval to clean up among other things sediments surface water groundwater or drinking water sources However these ldquoself-implementingrdquo provisions are relevant and appropriate for consideration when selecting a cleanup alternative for this Site

Resource Conservation and Recovery Act - RCRA as amended 42 USC sectsect6901 et seq defines hazardous waste and regulates its handling and disposal RCRA could be applicable to the Sauer Dump Site because some of the Site soils and sediments may be hazardous and would require handling storage treatment and disposal as hazardous wastes In addition it is possible that spent carbon from any off-gas or sediment dewatering treatment units might be considered a hazardous waste

Clean Air Act - The CAA governs air emissions generated by removal or remedial activities at CERCLA sites National Ambient Air Quality Standards (NAAQS) that are found in 40 CFR Part 50 have been promulgated under the CAA for six criteria pollutants including airborne particulates Air quality standards that would potentially be applicable to the Site include those for lead and particulate matter The associated Maryland Implementation Plans for the Attainment and Maintenance of NAAQS (40 CFR Part 52 sectsect 1070-1118 Subpart V) codify Marylandrsquos Implementation Plan for attaining the NAAQS The CAA is applicable to any remedy that causes the emission of pollutants including airborne particles In particular dust suppression measures must be included in any remedy that involves constructionearth moving activities

Clean Water Act - The CWA sets water quality criteria at levels that are protective of human health and of aquatic life in streams lakes and rivers CWA criteria will be considered applicable for the removal alternatives that might affect the water quality in the nearby wetlands or Back River These alternatives would include removal technologies that could impact stormwater quality or that generate water requiring discharge

Code of Maryland Regulations (COMAR) Title 26 - Title 26 of COMAR is promulgated by MDE and the relevant provisions which may be applicable or relevant and appropriate for consideration at the Site are listed below

bull COMAR 2608 Water PollutionndashThis regulation establishes criteria and standards for

discharge limitations and degradation of waters of the state It is potentially applicable to any alternatives that include discharge of treated groundwater into surface water

bull COMAR 2611 Air Regulations-This regulation provides ambient air quality standards general emissions standards and restrictions for air emissions from construction

US EPA Region 3 Sauer Dump Site EECA 2-3 HydroGeoLogic Inc April 2009

AR103659

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

bull COMAR 2613 Disposal of Controlled Hazardous SubstancesndashProvides criteria to identify hazardous waste and listed waste including Maximum Concentrations of Contaminants for the Toxicity Characteristic

222 Location-Specific ARARs

Location specific ARARs are restrictions on certain types of activities based on Site characteristics Location-specific ARARs govern activities conducted within critical environments such as wetlands endangered or protected species habitats and historic locations

Coastal Zone Management Act (16 USC sectsect 1451 et seq) and Coastal Zone Act Reauthorization Amendments of 1990 - This Act and its Amendments require that any activities that directly affect the coastal zone and are conducted or supported by federal agencies be performed in a manner that is consistent with the approved state coastal zone management program Because the Sauer Dump Site is located in the Maryland coastal zone both the Act and the related Amendments are applicable to the Site All activities must be performed to the extent practicable in a manner consistent with Marylandrsquos coastal zone management program and MDE must be consulted during EPArsquos determination of whether the activities are appropriate

National Recommended Water Quality Criteria (NRWQC) - The National Recommended Water Quality Criteria are a compilation of all EPArsquos recommended ambient water quality criteria for the protection of aquatic life and human health (EPA 2006) These criteria are applicable to the Site because the groundwater discharges to the Back River and Site sediments and soils currently impact surface water quality in the Back River

COMAR 262302 ndash Provides for a comprehensive watershed management plan to protect from an individual or cumulative effect that degrades the sensitive nature of the aquatic ecosystem This provision could be applicable to any alternative that could have a detrimental impact on water quality standards or which degrades surface or ground water quality

223 Action-Specific ARARs

Action-specific ARARs are usually technology or activity based directions or limitations that control actions taken at hazardous waste sites Action-specific ARARs are triggered by the types of actions under consideration Potential action-specific ARARs are identified below Resource Conservation and Recovery Act ndash RCRA could be applicable to various activities that could be part of a removal alternative because some of the Site soils and sediments might be classified as hazardous waste If the chosen removal alternative results in generation of a waste stream the substantive standards of RCRA could apply to that waste stream The following parts of the RCRA regulations are considered potentially applicable to the activities at the Sauer Dump Site

US EPA Region 3 Sauer Dump Site EECA 2-4 HydroGeoLogic Inc April 2009

AR103660

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

bull 40 CFR Part 261 defines hazardous waste and identifies characteristic and listed wastes

that would be considered hazardous bull 40 CFR sectsect 26210-44 establish standards for hazardous waste determinations

manifesting pre-transport requirements and other activities that are carried out by hazardous waste generators

bull 40 CFR sectsect 264111-120 establish standards for the closure of and post-closure care for sites containing hazardous wastes

bull 40 CFR sectsect 264300-310 establish standards for owners and operators of facilities that store or dispose of hazardous waste in landfills These sections are applicable to remedies that include landfilling (on-site or off-site) of contaminated soils and sediments

bull 40 CFR sectsect 264340-351 establish standards for owners and operators of facilities that store or treat hazardous waste in incinerators These sections are applicable to remedies that include low temperature thermal desorption andor incineration of soils and sediments

bull 40 CFR sectsect 26310-31 establish standards applicable to transporters of hazardous waste bull 40 CFR Part 270 establishes the hazardous waste permit program The substantive

requirements of the permit program would be met but no permit would be obtained for on-site activities Any off-site treatment andor disposal options proposed as part of a removal alternative must include use of a RCRA-permitted treatment storage or disposal facility for materials determined to be hazardous

US Department of Transportation Hazardous Material Regulations (49 CFR Parts 171-174 177 178 and 180) - These regulations establish requirements for labeling packaging and shipping hazardous materials All hazardous wastes that are transported off-site must be handled in accordance with these regulations

National Pollutant Discharge Elimination System Requirements (40 CFR Part 122 - These regulations implement sectsect 318 402 and 405 of CWA 33 USC sectsect 1251 et seq and address all pollutant discharges into the nationrsquos waters Wastewater generated during construction activities or as part of a selected treatment option must be managed in accordance with the substantive requirements of CWA

COMAR Title 26 - The following regulations in Title 26 of COMAR are potential action-specific ARARs at the Site

bull COMAR 2602 Occupational Industrial and Residential Hazards ndash Provides limits on

the maximum allowable levels of noise at the Site boundaries during Site remediation work to protect the health general welfare and property of the people of the State

bull COMAR 2604 Regulation of Water Supply Sewage Disposal and Solid Wastendash Provides specifications for well construction and abandonment and for proper closure and post closure monitoring and maintenance of landfills

US EPA Region 3 Sauer Dump Site EECA 2-5 HydroGeoLogic Inc April 2009

AR103661

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

bull COMAR 2613 Disposal of Controlled Hazardous Substances ndash Provides for the design installation and operation of a groundwater monitoring system capable of detecting any potential off-site migration of hazardous substances

bull COMAR 2617 Water Management ndash Requires that any land clearing grading or other earth disturbances which disturb over 5000 square feet of land area and over 100 cubic yards of earth have an erosion and sediment control plan Provides that stormwater must be managed to prevent off-site sedimentation

Occupational Safety and Health Administration (OSHA) Hazardous Waste Operator Regulations (29 CFR Parts 1904 1910 and 1926) - These regulations establish requirements for personnel working on projects involving the handling andor disposal of hazardous wastes Although the OSHA regulations are not ARARs all work performed at the Site must be done in accordance with these regulations All workers with a potential to be exposed to hazardous substances as a result of their work on Site activities must be properly trained and certified as required under these regulations

224 To Be Considered Materials

The following are sources of information that are to be considered during the development of a remedy for the Sauer Dump Site

Oak Ridge National Laboratory Regional Screening Levels - The Oak Ridge National Laboratory (ORNL) Regional Screening Levels (RSLs) provide soil concentrations that are associated with a cancer risk of 1E-06 or a non-cancer hazard quotient of 1 for a standard resident exposure (residential soil RSLs) or industrial worker exposure (industrial soil RSLs) In addition this table provides toxicological information that can be used in the development of PRGs to protect human health

Oak Ridge National Laboratory Ecotoxicological Screening Benchmarks (1997) - This document provides non-enforceable ecological toxicity screening levels considered protective of different ecological receptors These values will be considered in the development of ecological PRGs for the Sauer Dump Site

EPA Ecological Soil Screening Levels - For a number of chemicals EPA has developed soil concentrations that are considered protective of different ecological receptors These values will be considered in the development of ecological PRGs for the Sauer Dump Site

Maryland Department of the Environment Residential Soil Cleanup Standards - These standards include an approach to develop numeric Cleanup Standards for hazardous substances in soils and provide information on use of the Standards in the conduct of remedial actions Information in these standards will be used in the development of PRGs

1994 Revised Interim Soil Lead Guidance for CERCLA Sites and RCRA Corrective Action Facilities August 1998 - This guidance establishes cleanup criteria for lead in soils These criteria will be considered in the development of lead PRGs

US EPA Region 3 Sauer Dump Site EECA 2-6 HydroGeoLogic Inc April 2009

AR103662

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

National Oceanographic and Atmospheric Administration Effects Range-Low Benchmarks - The Effects Range-Low benchmark values indicate sediment concentrations below which adverse effects to the benthic organisms rarely occur They serve as non-enforceable ecological toxicity screening levels These values will be considered in the development of ecological PRGs for the Sauer Dump Site

EPA Region III Freshwater Sediment Screening Values - The EPA Region III Freshwater Sediment screening values provide sediment concentrations conservatively determined to be protective of benthic organisms These benchmarks will be considered in the development of sediment PRGs

23 DETERMINATION OF PRELIMINARY REMEDIAL GOALS AND DESCRIPTION OF CONTAMINATED MEDIA

231 Development of Preliminary Remedial Goals (PRGs)

PRGs are concentrations used as initial cleanup goals to support the development and evaluation of different remedial approaches PRGs are not the final cleanup standards The following PRGs were used to identify the area and volume of contaminated media to be addressed by the EECA

bull 400 mgkg lead in soils bull 1 mgkg total PCBs in soils bull 1 mgkg total PCBs in sediments and bull 130 mgkg lead in sediments

The PRGs for lead and total PCBs in soils are consistent with other sites within EPA Region III where remediation goals of 400 mgkg lead and 1 mgkg PCBs in soils have been established based on results of those sitesrsquo baseline risk assessments The PRG for PCBs in sediments 1 mgkg is based on the practical engineering limitations of available dredging technologies For sediments the lead PRG of 130 mgkg reflects consideration of Development and Evaluation of Consensus-Based Sediment Quality Guidelines for Freshwater Ecosystems (MacDonald et al 2000) as noted in the August 2007 Action Memorandum (EPA 2007) The surface water PRGs are based on NRWQC The Freshwater Chronic values of 0000064 ugl total PCBs and 81 ugl lead were selected for surface water at this Site Because groundwater at the Site will not be used as a source of drinking water the primary concern is to ensure that groundwater contaminants do not discharge to surface water at concentrations which would result in impairment of the surface water quality Accordingly the Freshwater Chronic NRWQC are also appropriate as the groundwater PRGs The surface water and groundwater PRGs are provided in Table 22

US EPA Region 3 Sauer Dump Site EECA 2-7 HydroGeoLogic Inc April 2009

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232 Volume Estimates ndash Soils and Sediments

To determine the volume of soils and sediments requiring remediation data from the following reports were used RIFFS Report (ENSAT 2002a) RI Report (ENSAT 2005) and EOCS Report (Malcolm Pirnie 2007) The data in these reports were compared to the PRGs presented in Table 22 Subsurface data were used to estimate the vertical extent of contamination requiring remediation The depth of the remedial volume is based on comparison of soil contaminant concentrations to both human health and ecological PRGs even though under current conditions these receptors would not be exposed to the subsurface contaminants In the future construction activities could result in turn over of the soils leading to the exposure of subsurface soils and thereby allowing ecological receptors (worms plants fish and wildlife) and non-construction worker receptors (child visitor) to come into direct contact with the associated contaminants If the remedial volume does not consider this subsurface contamination then land use controls to prevent all future construction and excavation activities at the Site would be required Locations and depths where contaminants were detected at concentrations in excess of the PRGs are included in the estimated area and volume requiring remediation The lateral extent of soil contamination greater than PRGs was estimated from the surface soil data When calculating the volume of soils requiring remediation it is typically assumed that future construction could be reasonably expected to disturb soils as deep as 10 to 12 feet or to the average depth of the groundwater table in the area in question Where no subsurface soil data were available the depth of contamination requiring remediation was generally assumed to be 8 feet bgs In the southern portion of Parcel 425 a depth of 35 feet was assumed based on data defining the depth to groundwater On Parcel 137 an average remediation depth of 4 feet was assumed The available data indicate that portions of Parcels 137 295 425 464 503 and 574 are characterized by soil contamination in excess of the PRGs (Figures 14 and 15) The estimated maximum volume of Site soils requiring remediation is approximately 16760 cubic yards For sediments the remedial volume was based on an assumed remediation depth of 4 feet in areas with wetland vegetation It is estimated that a total of 7740 cubic yards of sediments will require remediation Additional sediment volumes from the Back River might require remediation but the only sample that showed concentrations greater than those proposed for the Site was collected in 1999 There have been other samples in the immediate area of this sample that did not have PCBs in excess of the PRGs and it is likely that the sediments that were sampled in 1999 have been washed to other areas given the tidal and stream transport that would have occurred since that time Additional sampling of the Back River sediments should be performed to confirm that the sediments do not exceed the PRGs

US EPA Region 3 Sauer Dump Site EECA 2-8 HydroGeoLogic Inc April 2009

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US EPA Region 3 Sauer Dump Site EECA 2-9 HydroGeoLogic Inc April 2009

Table 23 summarizes the estimated area and volume of soils and sediments requiring remediation

233 Groundwater Management

Based on observed groundwater elevations across the Site groundwater is generally assumed to flow from north to south across the Site with discharge into the Back River However groundwater is influenced by the tidal movements of the Back River Consequently in those alternatives where a groundwater management feature was required the use of point extraction wells was avoided to minimize the extraction and treatment of water from the Back River and the adjacent wetlands In these instances gravel filled groundwater recovery trenches were specified to capture Site groundwater prior to its discharge into the river

AR103665

TABLES

AR103666

Table 21 Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 1 of 10

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Dundalk B

altimore C

ounty MD

ARAR or TBC Citation ARAR Class Requirement Synopsis Applicability to Proposed Remedies

I CHEMICAL SPECIFIC Toxic Substances Control Act (TSCA)

15 USC sectsect 2601 et seq 40 CFR Part 761

Applicable TSCA regulates chemical substances and mixtures whose manufacture processing distribution or disposal might present an unreasonable risk of injury to human health and the environment

Portions of the TSCA deal specifically with PCB remediation waste The self-implementation requirements are not binding on CERCLA actions and may not be used to address contamination in sediments surface water or groundwater without EPA approval TSCA also provides performance-based and risk-based methods for addressing PCB-contaminated remediation waste

Resource Conservation and Recovery Act of 1976 Hazardous and Solid Waste Amendments of 1984

42 USC sectsect6901 et seq

Applicable Identifies what constitutes a hazardous waste

Some of the Site soils and sediments may be hazardous and would be treated as hazardous wastes Spent carbon from any off-gas treatment units might be considered a hazardous waste

Clean Air Act 42 USC sect7401 40 CFR Part 50

Applicable NAAQS are promulgated under the CAA for six criteria pollutants including airborne particulates

CAA is applicable to any remedy that causes the emission of pollutants including airborne particles Air quality standards potentially applicable to the Site include those for lead and particulate matter

Maryland Implementation Plans for the Attainment and Maintenance of National Ambient Air Quality Standards

40 CFR Part 52 sectsect 1070-1118 Subpart V

Applicable Codify Marylandrsquos Implementation Plan for attaining the NAAQS

Applicable to determining compliance with the CAA

Maryland air quality regulations

COMAR 2611 Applicable Promulgates air quality regulations for Maryland

Requirements for emissions of toxic air pollutants and particulates are potentially applicable to Site remedies involving soil excavation or on-site treatment of media

US E

PA

Region 3

AR103667

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

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CA

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ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

Clean Water Act (CWA)

33 USC sectsect 1251 et seq

Applicable Water quality criteria set at levels to protect human health and aquatic life in streams lakes and rivers

Applicable to any portion of remedy which may affect the water quality in the nearby wetlands or Back River This includes remedial construction activities that could impact stormwater quality and remedies that generate water requiring discharge

Maryland Water Pollution Regulations

COMAR 2608 Applicable Establishes criteria and standards for discharge limitations and policy for anti-degradation of waters of the State

Potentially applicable to any remedies that have impact on the Sitersquos groundwater and surface water include discharge to surface or ground water

Maryland Disposal of Controlled Hazardous Substances

COMAR 2613 Applicable Provides criteria to identify hazardous waste and listed waste including Maximum Concentrations of Contaminants for the Toxicity Characteristic

Some of the Site soils and sediments may be hazardous and would be treated as hazardous wastes

National Recommended Water Quality Criteria

NA Applicable Provides a compilation of ambient water quality criteria for the protection of aquatic life and human health

Applicable to groundwater that discharges to the Back River and to the surface water of the Back River itself

ORNL RSLs NA To be considered

Non-enforceable soil concentrations that are protective of human health under a given set of exposure circumstances (residential vs industrial)

The ORNL RSLs provide soil concentrations that are associated with a cancer risk of 1E-06 or a non-cancer hazard quotient of 1 for a standard resident exposure (residential soil RSLs) or industrial worker exposure (industrial soil RSLs) In addition this table provides toxicological information that can be used in the development of PRGs to protect human health

ORNL Ecotoxicological Screening Benchmarks

NA To be considered

Provides non-enforceable benchmark values protective of specific ecological receptors

These benchmarks will be considered in the development of ecological PRGs for the Sauer Dump Site

US E

PA

Region 3

AR103668

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

p Site EE

CA

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ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

EPA Ecological Soil Screening Levels

NA To be considered

Non-enforceable screening levels protective of specific ecological receptors

These benchmarks will be considered in the development of ecological PRGs for the Sauer Dump Site

Maryland Department of the Environment (MDE) Residential Soil Cleanup Standards

State of Maryland Department of the Environment cleanup Standards for Soil and Groundwater August 2001

To be Considered

Include approach to develop numeric Cleanup Standards for hazardous substances in soils and provide information on use of the Standards in the conduct of remedial actions

Will be considered in development of soil PRGs

1994 Revised Interim Soil Lead Guidance for CERCLA Sites and RCRA Corrective Action Facilities August 1998

OSWER Directive 92004-27P

To be Considered

Establishes cleanup criteria for lead in soils

Will be considered in development of soil PRGs

National Oceanographic and Atmospheric Administration Effects Range-Low Benchmarks

NA To be Considered

The Effects Range-low benchmark values indicate the concentrations below which adverse effects to the benthic organisms rarely occur They serve as non-enforceable ecological toxicity screening levels for use in determining ecological PRGs

These values will be considered in the development of ecological PRGs for the Sauer Dump Site

US E

PA

Region 3

AR103669

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

Sauer Dum

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CA

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ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

EPA Region III Freshwater Sediment Screening Values

To be Considered

These values provide conservative benchmarks for the protection of benthic organisms

These values will be considered in the development of ecological PRGs for the Sauer Dump Site

II LOCATION SPECIFIC Coastal Zone Management Act of 1972 Coastal Zone Act Reauthorization Amendments of 1990

16 USC 1451 et seq 15 CFR Part 930

Applicable Requires that activities directly affecting the coastal zone that are conducted or supported by federal agencies are conducted in a manner that is consistent with the approved State coastal zone management program

Because the Sauer Dump Site is located in the Maryland coastal zone both the Act and the related Amendments are applicable to the Site Removal action activities will be consistent to the maximum extent practicable with Marylandrsquos coastal zone management program

Maryland Nontidal Wetlands and Tidal Wetlands

COMAR 262302 Applicable Provides for a comprehensive watershed plan to protect from an individual or cumulative effect that degrades the sensitive nature of the aquatic ecosystem

Removal activities to address sediment contamination would likely affect wetlands

III ACTION SPECIFIC Resource Conservation and Recovery Act

40 USC sectsect 6901 et seq

See below See below RCRA could be applicable to various activities that could be part of a selected remedy for the Site because Site soils might be hazardous These regulations are applicable to contaminated Site materials as well as wastes generated during the implementation of the selected remedy The following parts of the RCRA regulations are considered applicable to the activities at the Site if the soils and sediments and debris meet the definition of hazardous waste

US E

PA

Region 3

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for Sauer Dump Site

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ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

a Standards Applicable to Generators of Hazardous Waste

40 CFR sectsect 26210-58 Applicable Establishes standards for generators of hazardous wastes including waste determination manifests and pre-transport requirements

Applicable to contaminated Site materials and wastes generated during the implementation of the selected remedy

b Standards for closure and post-closure of hazardous waste sites

40 CFR sectsect 264111-120 Applicable Establish standards for the closure of and post-closure care for sites containing hazardous wastes

Applicable to Alternatives 2 and 3

c Standards for owners and operators of facilities that store or dispose of hazardous waste in landfills

40 CFR sectsect 264300-310 Applicable Requirements for storage or disposal of hazardous waste in landfills

Applicable to on-site or off-site landfilling of soils and sediments

d Standards for owners and operators of facilities that store or treat hazardous waste in incinerators

40 CFR sectsect 264340-351 Applicable Requirements for storage or treatment of hazardous waste in incinerators

Applicable to low temperature thermal desorption andor incineration of soils and sediments

e The Hazardous Waste Permit Program

40 CFR Part 270 Applicable Requires a permit for the treatment storage or disposal of any hazardous waste as identified or listed in Part 261

Any substantive requirement would be met but no permit would be required for on-site activities Any off-site treatment andor disposal options proposed as part of a removal alternative must include use of a RCRA-permitted treatment storage or disposal facility for materials determined to be hazardous

f Standards Applicable to Transporters of Hazardous Wastes

40 CFR sectsect 26310-31 Applicable Establishes standards applicable to transporters of hazardous waste

Applicable to any hazardous wastes (soils sediments spent media etc) transported off-site

US E

PA

Region 3

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for Sauer Dump Site

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CA

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ARAR ARAR or TBC Citation Class Requirement Synopsis Applicability to Proposed Remedies

g Identification and Listing of Hazardous Wastes

40 CFR Part 261 Applicable Defines hazardous waste and identifies characteristic and listed wastes that would be considered hazardous

Would be used to make waste determinations

Occupational Safety and Health Administration (OSHA) Hazardous Waste Operator (HAZWOPER) Regulations

29 CFR Parts 1904 1910 and 1926

Not and ARAR but must be complied with

Establishes worker training and safety requirements for projects involving the handling of hazardous materials

All work on the Site would be done in accordance with these regulations All workers with a potential to be exposed to hazardous substances as a result of their work on Site activities must be properly trained and certified as required under these regulations

US Department of Transportation (DOT) Hazardous Material Regulations

49 CFR Parts 171-174 177 178 and 180

Applicable Establishes requirements for labeling packaging and transporting hazardous materials

Any hazardous materialswastes that are shipped off-site would be handled in accordance with DOT regulations

Clean Water Act (CWA) and National Pollutant Discharge Elimination System Requirements

33 USC sectsect 1251 et seq 40 CFR Part 122

Applicable Address all pollutant discharges into the nationrsquos waters

Wastewater generated during construction activities or as part of a selected treatment option would be managed in accordance with CWA

Maryland Regulations governing Occupational Industrial and Residential Hazards

COMAR 2602 Applicable Provides limits on maximum noise levels allowed during site remediation work

Applicable to any potential soil or sediment remedies involving construction or other noisy equipment

Maryland Regulation of Water Supply Sewage Disposal and Solid Waste

COMAR 2604 Applicable Regulates the construction and operation of solid waste landfills and the construction and abandonment of wells

Potentially applies to remedies that involve off-site disposal or on-site containment of solid wastes Applies to construction or abandonment of groundwater wells and releases to groundwater or surface water

US E

PA

Region 3

AR103672

Table 21 (continued) Applicable or Relevant and Appropriate Requirements (ARARs) and To Be Considered Material (TBCs)

for Sauer Dump Site

US E

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Region 3

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ARAR or TBC Citation ARAR Class Requirement Synopsis Applicability to Proposed Remedies

Maryland Disposal of Controlled Hazardous Substances

COMAR 2613 Applicable Establishes standards for generators of hazardous waste and provides regulation for the transport and disposal of hazardous waste

Some of the soils and sediments on-site may be characterized as hazardous waste Transportation and disposal of these wastes would comply with the substantive requirements of these regulations

Maryland Water Management

COMAR 2617 Applicable Requires that any land clearing grading or other earth disturbances that covers over 5000 sq ft and over 100 CY of soil have an erosion and sediment control plan

Potentially applicable to remedies with large areavolume of soil disturbance such as soil removal or surface cap construction

AR103673

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Table 22

Preliminary Remediation Goals for Sauer Dump Site

US EPA Region 3 Sauer Dump Site EECA Sheet 1 of 1 HydroGeoLogic Inc April 2009

Chemical PRG Basis of PRG Soil

Total PCBs 1 ppm TSCA Cleanup Levels for High Occupancy Areas and

Accepted Region III Practice

Lead 400 mgkg EPA Residential Soil Screening Levels for Lead (EPA

1994) and Accepted Region III Practice Sediments

Total PCBs 1 ppm Practical engineering limitations of dredging

technologies and Accepted Region III Practice

Lead 130 mgkg Development and Evaluation of Consensus-Based

Sediment Quality Guidelines for Freshwater Ecosystems (MacDonald et al 2000)

Surface WaterGroundwater

Total PCBs 0000064 ugl NRWQC Human Health for Consumption of

Organism Only

Lead 81 ugl NRWQC Criterion Continuous Concentration mgkg = milligrams per kilogram NRWQC = National Recommended Water Quality Criteria 2006 ppm = parts per million ugl micrograms per liter TSCA = Toxic Substances Control Act

AR103674

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Table 23 Estimated Extent of Site Contamination for Sauer Dump Site

Region of Contamination Area

(square feet) Depth1) (feet)

Volume (cubic yards)

Soils

Parcel 464 and 503 10810 8 3200

Parcel 295 1010 8 300

Parcel 137 7480 4 1110

Northern Portion of Parcel 425 34220 8 10140

Southern Portion of Parcel 425 15540 35 2010

Parcel 5742) 0 0 0

Total 69060 - 16760

Sediments

Total 52240 4 7740 (1) Depths based on available subsurface soil analytical data and depth to groundwater The depth in the wetland areas was assumed to

be 4 ft (2) No soil data was available for Parcel 574 Only contaminated sediments were detected on this parcel As a result all excavation

volumes related to this parcel are included in the sediment area and volume numbers only

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HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

30 IDENTIFICATION AND SCREENING OF TECHNOLOGY TYPES AND PROCESS OPTIONS

General Response Actions (GRAs) and specific technology types and Technology Process Options (TPOs) within each GRA type are defined in this section The phrase ldquotechnology process optionsrdquo refers to specific processes within each of the general technology types For example TPOs within the ldquotreatmentrdquo GRA include chemical oxidation and soil washing GRAs are introduced in Section 31 In Section 32 potential remedial technologies are identified within each of the General Response Actions The identified TPOs are first pre-screened based on technical feasibility for the Site In Section 33 TPOs retained from the initial pre-screening are screened for effectiveness implementability and cost The TPOs that remain after the latter screening are summarized in Section 34 These remaining TPOs will be used in assembling removal alternatives for the Site

31 GENERAL RESPONSE ACTIONS (GRAS)

GRAs are medium-specific generic types of remedial actions that can alone or in combination achieve the RAOs established for the Site GRAs proposed for the Site include the following

No Action - No action GRA implies that the Site is left in its present condition This response action provides a background against which all other remedies can be compared A no action alternative is required for consideration by the NCP

Institutional Controls - Institutional controls (ICs) can reduce human health risks from Site contaminants by restricting land use or activities at the Site ICs will not reduce ecological risks ICs contribute to the effectiveness of remedial systems through preventing activities or land uses which may interfere with the systemrsquos operation

Containment - Containment refers to physical processes that would restrict contaminant mobility without changing their concentration or toxicity Containment protects human health and minimizes ecological risk by controlling the routes of exposure

Treatment - Treatment may include any physical chemical or biological processes that would lower human health or ecological risk from the contaminants by their destruction or conversion into less hazardous forms

Removal - Removal includes physically removing contaminated soils as an initial step for treatment andor disposal

Disposal - Disposal involves methods to discard the treatment by-product or removed soils off-site in accordance with all applicable regulations

Applicable technologies associated with each of the above GRAs are discussed below

US EPA Region 3 Sauer Dump Site EECA 3-1 HydroGeoLogic Inc April 2009

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32 IDENTIFICATION AND SCREENING OF POTENTIALLY APPLICABLE TECHNOLOGIES

A range of technology types and process options was identified and pre-screened according to their overall applicability to the primary contaminants and conditions present at the Site For each GRA one or more technology types and associated TPOs were identified The initial screening results are summarized in Tables 31 and 32 Some of the sources consulted during the identification of technologies include reference documents published by EPA feasibility studies for similar sites standard engineering texts and professional experience

33 EVALUATION OF POTENTIAL REMEDIAL TECHNOLOGIES

In this subsection each of the technologies retained in Tables 31 and 32 is described and evaluated in greater detail based on its effectiveness implementability and cost Based on this evaluation the technology is either retained for further evaluation or eliminated Each of the three criteria is briefly defined below

Effectiveness ndash The ability of a technology to meet the removal objectives for protection of human health and the environment

Implementability ndash Technical and administrative feasibility of implementing the technology TPOs that are not technically feasible at the Site were eliminated during the pre-screening step in Section 32 During this evaluation the remaining TPOs are compared based on such considerations as the availability of treatment storage and disposal services and the necessary equipment and skilled workers to implement the technology

Cost ndash A relative estimate of the cost of implementing the technology This is based on engineering judgment and available reference sources Cost are given as very low low moderate or high relative to other process options

331 No Action

Description ndash The no-action option consists of leaving the Site as it is without any removal activities Effectiveness ndash This response does not meet the removal objectives and would not be protective of human health or the environment Implementability ndash No actions are required to implement this option Cost ndash No costs are associated with this option Recommendation ndash The No Action option was retained to provide a baseline for the comparison of other removal alternatives

US EPA Region 3 Sauer Dump Site EECA 3-2 HydroGeoLogic Inc April 2009

AR103678

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332 Institutional Controls

ICs do not reduce contaminant toxicity mobility or mass They do reduce or eliminate the potential for human exposure and can help protect existing and future remedial measures Because the PRGs are based on non-residential Site use all remedial alternatives must include ICs to prevent future development of the Site for residential purposes The proposed ICs include deed noticesrestrictions public informationawareness programs security fencing and monitoring of Site conditions

3321 Deed NoticesRestrictions

Description ndash Deed noticesrestrictions may be used to provide potential future purchasers of affected properties with notice of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site to define acceptable land use to prevent specific activities and to require specific engineering controls in order to eliminate or minimize human exposure to Site-related contaminants Deed noticesrestrictions may also be used to protect the integrity of removal systems Effectiveness ndash Deed noticesrestrictions defining acceptable land uses(s) and placing limits on excavation or intrusive activities would be effective in minimizing human exposure to the contaminants in soils and sediments at the Site Additional restrictions could be enacted to protect existing and future remedial systems Deed noticesrestrictions would not reduce potential environmental risks nor would they decrease contaminant toxicity mobility or volume This option would be more effective in combination with other removal options Implementability ndash Deed noticesrestrictions could be easily implemented at the Site Legal involvement would be needed for preparation of the deed noticesrestrictions It would also be necessary to obtain agreement from the owners of the affected properties to allow deed noticesrestrictions to be filed with the Recorder of Deeds for Baltimore County or other office where land ownership and transfer records are maintained Cost ndash Costs associated with implementing deed noticesrestrictions would be very low Recommendation ndash This option was retained for use in conjunction with other removal measures

3322 Access Agreements

Description ndash Access agreements are used to ensure continued Site access for monitoring Site conditions and operating or maintaining removal systems Because of the need to implement ICs to maintain non-residential land use continued access for Site monitoring will be required Depending on the removal alternative selected for implementation additional access may be required for system operation and maintenance

US EPA Region 3 Sauer Dump Site EECA 3-3 HydroGeoLogic Inc April 2009

AR103679

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Effectiveness ndash Access agreements for monitoring and maintenance activities would not reduce the toxicity mobility or volume of the contaminants at the Site but they are necessary for successful implementation of other removal options at the Site Implementability ndash Access agreements can be easily implemented at the Site Cost ndash The cost of securing access agreements for the Site would be very low Recommendation - Access agreements were retained for further consideration in combination with other removal options

3323 Monitoring of Site Conditions

Description ndash Monitoring includes Site inspection and collection of environmental samples Because Alternatives 2 and 3 would include ICs to restrict land use to non-residential purposes Site inspections would be required to confirm IC implementation Depending on the removal alternative additional monitoring such as sample collection may be required to assess remedial system performance Effectiveness ndash While monitoring activities would not reduce the risks associated with the contaminants or the toxicity mobility or volume of the contaminants at the Site these activities are necessary for successful implementation of other removal options and for demonstrating attainment of removal objectives Monitoring would be more effective in combination with other removal options Implementability ndash Monitoring can be easily implemented Cost ndash The cost of monitoring Site conditions would be very low to low Recommendation ndash Monitoring of Site conditions was retained for further consideration in combination with other removal options

3324 Security Fencing

Description ndash The Site has a chain link security fence around the perimeter of the former operational area (Parcel 425) This option would involve either maintenance of the existing fence or construction of a new fence should implementation of the removal alternative require dismantling of the current fence or if additional areas need to be included within the fence Effectiveness ndash A security fence can be an effective means of decreasing the potential for human contact with the contamination on Parcel 425 The security fence would not effectively protect ecological receptors nor would the fence decrease contaminant mobility toxicity or volume

US EPA Region 3 Sauer Dump Site EECA 3-4 HydroGeoLogic Inc April 2009

AR103680

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Implementability ndash Maintenance of the current fence or replacement of the fence following removal action implementation would be easy to implement Cost ndash The cost of security fencing at the Site would be very low to low Recommendation - Security fencing was retained for further consideration in combination with other removal options

3325 Public Awareness and Information Programs

Description ndash Public meetings would be held to inform the public of risks associated with the Site contamination Fact sheets would be used to disseminate information about the Site In addition warning signs would be used to warn potential trespassers of Site dangers Effectiveness ndash The public meetings and fact sheets may be an effective method for decreasing the potential for local residents to contact the contaminated soils or sediments but would not be effective for potential receptors that do not live near the Site The warning signs would be an effective means of decreasing the potential for humans to contact the contaminated soils and sediments on Parcel 425 These measures would not reduce environmental risks or the toxicity mobility or volume of the Site contaminants Implementability ndash Public awareness levels are fairly high in the area Presentation of Site updates via additional public meetings and fact sheets would be easily implemented Additional signage for the Site could be easily obtained and installed Cost ndash The cost of public awareness and information programs would be very low Recommendation - Public awareness and information programs were retained for further consideration in combination with other removal options

333 Containment

Containment involves installation of physical barriers to prevent further migration of contaminants in the soils and sediments and to eliminate the routes of exposure to humans and ecological receptors Only surface horizontal barriers (covers) were retained by the initial screening in Section 32 Surface caps were not retained for sediments because the capping process would destroy the wetlands necessitating construction of replacement wetlands as a mitigation measure The covers retained by the initial screening are described below

3331 Multi-Layer Cover

Description ndash A multi-layer surface cover such as a RCRA Subtitle C cap is appropriate for hazardous waste applications This type of cap generally includes an upper vegetative (topsoil) layer a drainage layer a synthetic membrane and a low permeability barrier layer placed over a foundation layer of sand or native soils The barrier layer can be constructed with low-

US EPA Region 3 Sauer Dump Site EECA 3-5 HydroGeoLogic Inc April 2009

AR103681

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

permeability soil (clay) andor geosynthetic clay liners RCRA Subtitle C caps are typically six foot or more in thickness (Air Force Center for Environmental Excellence 1999) Effectiveness ndash A multi-layer surface cover could achieve the removal objectives by limiting contact of human and ecological receptors with contaminated soils and by preventing contaminant migration through leaching and erosion Because a bottom liner would not be placed beneath the contaminated soils this approach would not prevent tidal influences from raising groundwater into the contaminated subsurface soils The extent to which this process would result in contaminant leaching to groundwater would depend on the contamination depth relative to the potential range of groundwater elevations If the sediments were excavated dewatered and placed beneath the cover this technology could provide an effective means of eliminating the direct contact risks and migration potential associated with the sediment contaminants To ensure continued protection of human health and the environment the cover would require long-term maintenance Because the Site is adjacent to tidally-influenced surface water the cover would be subjected to storm events and flooding which could increase the maintenance requirements and the potential for the cover to be breached or damaged If the cover were breached at some point it would be relatively difficult to reseal From a regulatory perspective a RCRA Subtitle C cap exceeds the requirements of 40 CFR sect 76161 for capping of bulk PCB remediation wastes Implementability ndash A multi-layer surface cover could be implemented with readily available technology and materials This technology is harder to implement than other covers such as asphalt or concrete Maintenance of a multilayer cap would include erosion repair vegetation trimming or removal and possibly animal controlremoval Cost ndash Moderate unit costs of between $500000 and $650000 per acre are typical for multi-layer cover construction Removal of Site debris and consolidation of the contaminated sediments and off-site (non-Parcel 425) soils beneath the cover would increase construction costs Recommendation - This approach was not retained for further analysis because while it would be effective and implementable it exceeds the regulatory requirements for capping of bulk PCB remediation wastes on sites that are being remediated in accordance with 40 CFR sect 76161 and is more expensive than a TSCA cap that would meet the requirements of these regulations

3332 TSCA Compacted Soil Cover

Description ndash A single layer compacted soil cover with a minimum thickness of ten inches The soil must meet minimum specifications outlined in 40 CFR sect 76161(a)(7)

US EPA Region 3 Sauer Dump Site EECA 3-6 HydroGeoLogic Inc April 2009

AR103682

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Effectiveness ndash A compacted soil cover could achieve the removal objectives by limiting contact of human and ecological receptors with contaminated soils and by preventing contaminant migration through leaching and erosion As with the multi-layer cover a compacted soil cover would not prevent tidally-influenced groundwater from rising into the contaminated soil zone and would require long-term maintenance Because of the presence of burrowing animals and the proximity to residences it would be beneficial to include a burrowing barrier to the cap to limit breaching of the cover by animals or children Implementability ndash A compacted soil cover could be implemented with readily available technology and materials Maintenance of the cap would include erosion repair vegetation trimming or removal and possibly animal controlremoval Cost ndash Low to Moderate unit costs of between $150000 and $250000 per acre are typical for compacted soil cover construction Removal of Site debris and consolidation of the contaminated sediments and off-site (non-Parcel 425) soils beneath the cover would increase construction costs Recommendation - This approach was retained for further analysis

3333 Asphalt or Concrete Cover

Description ndash Asphalt and concrete covers consist of an asphalt or concrete layer over the contaminated soils These covers are designed to minimize contact with soils and to limit infiltration of stormwater and surface erosion According to TSCA regulations an asphalt or concrete cover must have a minimum thickness of six inches Effectiveness ndash Concrete and asphalt covers can effectively control erosion reduce soil exposure and minimize precipitation infiltration As with the multi-layer cover a concrete or asphalt cover would not prevent tidally-influenced groundwater from rising into the contaminated soil zone Asphalt and concrete covers are more resistant to erosion and require less maintenance than multi-layer covers (Air Force Center for Environmental Excellence 1999) It would be relatively simple to reseal a concrete or asphalt cap if it were to be breached However the covers would still have the potential for damage due to storm events and flooding Implementability ndash Concrete or asphalt caps could be easily implemented for the on-site soil contamination Maintenance of these caps typically involves the periodic application of sealers and repair of cracks The appearance of these caps can be considered a draw-back and the impact to wildlife would be significant due to loss of habitat Cost ndash Low to Moderate unit costs of between $300000 and $550000 per acre are typical for asphalt or concrete cap construction Removal of Site debris and consolidation of

US EPA Region 3 Sauer Dump Site EECA 3-7 HydroGeoLogic Inc April 2009

AR103683

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

contaminated sediments and off-site (Parcels adjacent to Parcel 425) soils beneath the cover would increase construction costs Recommendation ndash Due to the significant impact on wildlife this treatment option was not retained for further consideration

334 Soils and Sediments Treatment

Soil treatment methods can be subdivided into two general categories in situ and ex situ Ex situ methods involve excavation of the soils before treatment while in situ treatment is performed in place In situ and ex situ treatment methods can rely on chemical physical or biological processes as well as combinations of these All ex situ treatment considerations must take into account the costs for excavation and for some alternatives transportation of soils The treatment processes retained by the initial screening in Section 32 are evaluated below

3341 In Situ Soil Flushing

Description ndash Soil flushing involves flooding contaminated soils with water or a solution to mobilize contaminants The water or liquid solution is injected or infiltrated into the area of contamination The contaminants leach into the watersolution which is then recovered and treated before being re-injected or discharged Effectiveness ndash Even though some of the Site contaminants may be amenable to soil flushing it is unlikely that a single wash fluid would be able to remove all of these chemicals due to their differing physico-chemical characteristics as well as the type of soils (high amounts of fines) Thus application of multiple flush solutions would likely be required Without bench scale or pilot testing it is not known if this technique could achieve all the PRGs for soil contaminants To be effective it is necessary for the flush solution to be distributed throughout the entire treatment zone The potential for the injected fluid to short-circuit the contaminated soils particularly if it is necessary to inject multiple solutions decreases the effectiveness of this TPO Additionally soil flushing would mobilize many of the contaminants in question allowing those contaminants that are not recovered to further impact the groundwater Implementability ndash In situ flushing is well-suited for treatment of contaminants in sandy soils but not for soils with a high amount of fines (ie silts and clays) The surface soils (based on the 2002 geotechnical testing summarized in the August 2005 RI by ENSAT) would be amenable to the flushing as they are 50 to 70 percent sand The subsurface soils however are mainly clays and silts and would require greater volumes of liquid injection In addition the depth to groundwater at the Site is shallow (less than 10 feet below ground surface) and discharges directly to the Back River With the large area requiring treatment it would be difficult to install a fluid injectioncapture system that would allow treatment of the entire soil volume while ensuring that the wash solution and mobilized contaminants are captured before

US EPA Region 3 Sauer Dump Site EECA 3-8 HydroGeoLogic Inc April 2009

AR103684

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

they reach the groundwater and the Back River The greater liquid injection volume would have the effect of increasing the groundwater elevation and thereby increasing the hydraulic gradient between the groundwater and the surface water in the Back River promoting groundwater flux to the Back River Cost ndash High Published costs for large scale projects using soil flushing range from $65 to $200 per cubic yard of treated soil (Interstate Technology and Regulatory Council (ITRC) 2003) Recommendation - In situ soil flushing was not retained for further consideration because of the subsurface soil composition the commingled contamination and the potential to discharge contamination into the Back River

3342 Ex Situ Soil Washing

Description ndash Ex situ soil washing applies the soil flushing concept to excavated soils The technique could also be applied to excavated sediments Effectiveness ndash Ex situ soil washing would eliminate the concerns over the potential for increased contamination of the groundwater and subsequently the Back River associated with the in situ flushing technique Multiple wash fluids however would be required because of the commingled contamination Without bench scalepilot testing it is not known if the PRGs for all soil and sediment contaminants could be achieved Implementability ndash This treatment process would require a large area for implementation The commingled contamination at the Site would require sequential washing steps using different wash formulations andor different soil-to-wash-fluid ratios Treatability studies would be required to determine what combination of washing steps and solutions would be needed to treat the Site soils to the PRGs Additionally because this technology only separates the contamination from the soils a treatment system would need to be constructed for the wash water or the wash water would have to be containerized and transported to an off-site disposal facility Cost ndash Moderate to High Costs for this technology have been reported to range between $50 and $200 per cubic yard (Federal Remediation Technologies Roundtable (FRTR) 2002 ITRC 1997) but the nature of the wastes at the Site could push the costs of implementation to (or possibly above) the high end of this range Recommendation - Because of the complexity of the technology and space requirements ex situ soil washing was not retained

3343 Ex Situ Thermal Desorption

Description ndash Ex Situ Thermal Desorption (ESTD) can be used to remove organic compounds including PCBs from soils and sediments Soilssediments are heated to volatilize organic

US EPA Region 3 Sauer Dump Site EECA 3-9 HydroGeoLogic Inc April 2009

AR103685

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

contaminants and a carrier gas or vacuum system transports volatilized water and organics to the gas treatment system Effectiveness ndash Thermal desorbers with temperatures in the range of 200oF to 600oF are able to achieve 95 percent contaminant destruction efficiency for treating VOCs and SVOCs while the decontaminated soils retain their physical properties Thermal desorbers with temperatures in the thermal range 600oF to 1000oF can produce final contaminant concentrations below 5 mgkg and are effective for treating PAHs PCBs pesticides SVOCs and VOCs ESTD would not address the metals contamination Implementability ndash This option can be implemented with specialized but commercially available equipment However there may be public opposition to the process because of the associated air emissions noise and the proximity to residential areas Implementation would require an open area to place the system and stage the treated and untreated soilssediments space for sediments dewatering and a significant supply of energy Cost ndash Moderate to High Literature sources list approximate costs for treating Site soils using ESTD in the range of $40 to $232 per cubic yard of soil (httpwwwfrtrgovmatrix2section44-26html 2008) In addition the costs associated with the remediation of the sediments would be higher due to dewatering of the sediments prior to ESTD Recommendation ndash ESTD was not retained as a possible pre-treatment option for excavated sediments and soils slated for off-site disposal due to the associated air emissions noise and the proximity to residential areas

3344 Ex Situ Thermal Destruction (Incineration)

Description ndash During the incineration process the soils are heated above the combustion temperature of most organic contaminants (1600oF to 2200oF) in the presence of oxygen Available incineration processes include rotary kiln fluidized-bed and infrared options Effectiveness ndash High temperatures employed during the incineration process result in the destruction of most organic compounds with treatment efficiencies commonly exceeding 9999 percent Generated off gases and combustion residuals generally require treatment Implementability ndash Mobile incinerator units are commercially available but there may be public opposition to the on-site use of an incinerator Off-site incineration is possible but transportation of the quantities of soils and sediments requiring remediation over the distances to the closest acceptable incinerator would increase the potential to spread Site contamination and would substantially increase cost Only three incinerators in the country can accept the Sitersquos heavily contaminated PCB soils because of the elevated metals concentrations These incinerators are 1) the Veolia facility in Port Arthur Texas 2) the Clean Harbor facility in Deer Park Texas and 3) the Clean Harbor facility in Aragonite Utah Other regulatory concerns associated with incineration include generation of toxic air pollutants and disposal of

US EPA Region 3 Sauer Dump Site EECA 3-10 HydroGeoLogic Inc April 2009

AR103686

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

ash residue An incineration facility must submit to a full-scale evaluation including a trial burn monitored by regulatory agencies to demonstrate its ability to meet performance criteria for various materials Cost ndash High Incineration is a very expensive process with costs ranging from approximately $585 to $1171 per cubic yard of soils (FRTR 2002) Recommendation ndash Because of this technologyrsquos ability to destroy the PCBs incineration was retained for further analysis

335 Groundwater CollectionTreatment

Groundwater collection and treatment methods can be used to control off-site migration of groundwater contaminants or to capture and treat groundwater containing residual contaminants from the capped or remediated areas The collectiontreatment methods retained by the initial screening are described below

3351 Interceptor Trench

Description ndash Interceptor trenches collect and allow extraction of groundwater before it migrates off-site The trench would consist of groundwater extraction sumps with submersible groundwater extraction pumps and piping to transfer extracted groundwater to an on-site treatment facility Effectiveness ndash To be effective the interceptor trench must be combined with a treatment andor disposal option Implementability ndash Installation and construction of the trench could be readily implemented with standard construction equipment and engineering controls A power supply would be required to operate the extraction system Long-term OampM would be required Cost ndash Moderate to High Costs can range from approximately $200 to $300 per linear foot of trench depending on Site conditions These costs include sumps and pumps Long-term OampM costs would also have to be included Recommendation ndash Groundwater collection through an interceptor trench was retained for further consideration

3352 Extraction Wells

Description ndash Collection of groundwater would be accomplished through one or more point extraction wells that would be used to induce a cone (or cones) of depression to capture contaminated water from the Site before it discharges into the river

US EPA Region 3 Sauer Dump Site EECA 3-11 HydroGeoLogic Inc April 2009

AR103687

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Effectiveness ndash To be effective the extraction well(s) must be combined with a treatment andor disposal option Because each well would generate a cone of depression it is likely that a substantial volume of river water would also be extracted for treatment The relatively low permeability soils of the Site would limit the effective radius of influence (ROI) of each well Implementability ndash Installation and construction of the well(s) could be readily implemented with standard construction equipment and engineering controls A power supply would be required to operate the extraction system Long-term OampM would be required Cost ndash Low to Moderate depending on geology well depth and required well casing material Long-term OampM costs would also have to be included Recommendation ndash Because of the limited ROI for each well and the high potential to extract river water in addition to contaminated groundwater collection of groundwater using extraction wells was not retained for further consideration

3353 Granular Activated Carbon Adsorption

Description ndash Granular Activated Carbon (GAC) is a highly porous and adsorbent material which is able to remove organic contaminants from water Collected groundwater would be filtered through the GAC to attain the PRGs before discharge of the treated groundwater Effectiveness ndash To be effective the treatment must be combined with a collection and discharge system PCBs can be removed through activated carbon adsorption Pre-filtration prior to activated carbon treatment can remove suspended particulates and multi-stage carbon adsorption can effectively remove heavy metals such as lead Implementability ndash Installation and construction of the GAC system could be readily implemented with standard construction equipment and engineering controls The activated carbon must be replaced periodically A power supply would likely be required to operate the treatment system and long-term OampM would be required Cost ndash Moderate to High PCB contamination limits treatment options Average cost for a GAC system of the size needed to achieve the PRGs required for this Site would be approximately $100000 Long-term OampM costs would also have to be included Recommendation ndash Groundwater treatment using GAC was retained for further consideration

3354 Monitored Natural Attenuation

Description ndash Natural attenuation are processes that may render the contaminants less toxic reduce concentrations reduce mobility andor alter bio-availability so that potential risks are reduced

US EPA Region 3 Sauer Dump Site EECA 3-12 HydroGeoLogic Inc April 2009

AR103688

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

Effectiveness ndash Contaminant concentrations in Site groundwater are expected to be reduced through natural physical chemical and biological processes Until complete degradation is complete exposure risks from contaminated groundwater could exist Implementability ndash This process option could be readily implemented with standard construction equipment and engineering controls Long-term monitoring would be required Cost ndash Low The primary cost for this process option includes labor and equipment costs for installation of the monitoring wells if necessary and long-term sampling and analytical testing These costs are expected to be significantly lower than most other process option OampM costs Recommendation ndash Based on its low cost and eventual effectiveness this process option was retained for possible incorporation into the removal action alternatives

336 Removal and Disposal TPOs

Excavated soils and sediments can be disposed in an on-site or off-site landfill either directly or after they have undergone ex situ treatment Some of the excavated material would likely be classified as hazardous waste under RCRA This waste classification could result in additional disposal restrictions The presence of PCBs at concentrations greater than LDR limits would require that the soils be treated prior to disposal

3361 Excavation

Description ndash Soils and sediments characterized by contaminant concentrations greater than PRGs would be excavated Effectiveness ndash To be effective excavation must be combined with a treatment andor disposal option Implementability ndash Excavation could be readily implemented with standard construction equipment and engineering controls The excavated sediments would require decanting and possibly dewatering prior to treatment andor disposal The water removed from the sediments would require treatment prior to discharge or would require off-site disposal Cost ndash Low to High Excavation costs must be considered as a part of any alternative involving soilssediments removal Recommendation ndash Excavation was retained for further consideration

3362 Off-Site Landfill

Description ndash Excavated soils and sediments would be disposed in an off-site landfill with or without treatment Surface debris would be disposed off-site Some of the Site soilssediments

US EPA Region 3 Sauer Dump Site EECA 3-13 HydroGeoLogic Inc April 2009

AR103689

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 3-14 HydroGeoLogic Inc April 2009

may be characterized as hazardous wastes and would require disposal at a properly permitted hazardous waste facility Soils sediments and debris characterized as non-hazardous would be transported to a properly permitted non-hazardous waste landfill Effectiveness ndash Disposal of debris soils and sediments in an off-site landfill would effectively achieve the removal objectives Placement of the contaminated material in a properly engineered constructed and operated landfill would eliminate risks to human health and the environment and would prevent contaminant migration Implementability ndash A detailed waste characterization analysis would be required before an off-site treatmentdisposal facility would accept materials The data indicate that a substantial portion of the soils and sediments would be classified as hazardous waste Because of the comingled PCB and metals waste it might be difficult to identify a facility with the ability to accept the waste The Waste Management facility in Emelle Alabama was the closest identified facility that has the ability to accept hazardous (metals) waste provided that the PCB concentration is less than 500 mgkg Hazardous soils and sediments with a PCB concentration greater than 500 mgkg must be treated to remove the PCBs prior to acceptance by a hazardous waste landfill facility Based on the available data it is estimated that approximately 7540 cubic yards of soil would require treatment prior to off-site disposal The PCB concentrations of the contaminated sediments do not appear to meet this threshold value for treatment Transportation to an off-site disposal facility would require truck shipments Depending on the volume of soilssediments to be disposed off-site there could be substantial short-term impacts to the local traffic patterns In addition to creating inconvenience for local residents multiple truck shipments would increase the potential to spread contamination through off-site spills or accidents Cost ndash High Cost estimates for excavation and disposal of contaminated soils and sediments range from $210 - $350 per cubic yard (FRTR 2002) The costs for the Site are expected to be toward the high end of these estimates because of the highly contaminated nature of the waste and the distance to an appropriate landfill The cited costs do not include the pre-treatment required for soils with PCB concentrations greater than 500 mgkg Disposal of non-hazardous demolition debris and certain soils (those that pass the toxicity characteristic leaching procedure and have less than 50 mgkg of PCBs) would incur lower costs because these materials could be disposed of in municipal or industrial landfills located closer to the Site Recommendation - Because of the ability of this TPO to achieve the removal objectives it was retained for further evaluation

34 SUMMARY OF TREATMENT TECHNOLOGIES AND SELECTION OF REPRESENTATIVE PROCESS OPTIONS

The process options that were retained for further consideration will be used as components of the potential removal alternatives developed and evaluated in Section 4 Results of the TPO evaluation are summarized in Tables 33 and 34

AR103690

TABLES

AR103691

Table 31 Sauer Dum

p Site EE

CA

Sheet 1 of 3

H

ydroGeoL

ogic Inc April 2009

Identification and Preliminary Screening of Soil and Sediment Technologies for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

No Action None None Take no remedial action Contaminated soils and sediments would be subject to natural conditions and processes

Required for consideration by NCP Retained

Zoning Ordinances Restrict uses of the property andor limit Site access to minimize exposure and protect Site features

Zoning ordinances can be changed Not retained because does not provide a permanent means of land use control

Deed NoticesRestrictions

Restrict future use of Parcel 425 to non-residential purposes PRGs are based on non-residential use

Retained

Access Agreements Provide agreements to ensure access for monitoring of Site use inspection and operation and maintenance of removal system(s)

Retained

Public Awareness and Information Programs

Public meetings held to inform public of risks associated with the Site Installationmaintenance of warning signs

Retained

Monitoring of Site Conditions

Inspect Site to ensure non-residential land use Collect environmental samples

Retained

Institutional Controls

Institutional Actions

Security Fencing

Maintenance of existing perimeter fence Installation of a new security fence should implementation of the removal alternative require dismantling of the current fence or if additional areas need to be included within the fence

Retained

TSCA Compacted Soil Cover

Construct compacted clay cover over contaminated soils and sediments

Retained

Surface Cover - Multilayer

Install impermeable multilayered surface cover (such as RCRA Subtitle C cover)

Not Retained Containment Surface Cover

Surface Cover ndash Asphalt or Concrete

Install low permeability asphalt or concrete cover Not Retained

US E

PA

Region 3

AR103692

Table 31 (continued) Identification and Preliminary Screening of Soil and Sediment Technologies for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 2 of 2

HydroG

eoLogic Inc A

pril 2009

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

In Situ Soil Flushing

Contaminants are extracted from the soils with an aqueous medium the injected fluid is recovered for treatment and discharge

Not retained because of the subsurface soil composition the commingled contamination and the potential to discharge contamination into the Back River

Chemical Physical Treatment

Ex Situ Soil Washing Excavated soils are suspended in washing solution to concentrate and extract contaminants

Not retained because of the complexity of the technology and space requirements

Ex Situ Thermal Desorption

Excavated soils or sediments (after dewatering) are run through a thermal desorber for removaldestruction of organic compounds

Not retained due to associated air emissions noise and the proximity to residential areas

Treatment

Thermal Treatment Ex Situ Thermal

Destruction (Incineration)

Excavated soils or sediments (after dewatering) are combusted at high temperatures in the presence of oxygen to thermally destroy organic contaminants

Retained due the technologyrsquos ability to destroy PCBs

Removal Excavation Excavation Soils andor sediments are excavated for further treatment or disposal

Retained

Disposal Landfill Off-Site Landfill Excavated soils and sediments are transported to an off-site landfill for proper disposal

Retained

AR103693

Table 32 Sauer Dum

p Site EE

CA

Sheet 1 of 2

H

ydroGeoL

ogic Inc April 2009

Identification and Preliminary Screening of Groundwater Technologies for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

No Action None None Take no remedial action Contaminated groundwater would be subject to natural conditions and processes

Required for consideration by NCP Retained

Zoning Ordinances Restrict uses of the property andor limit Site access to minimize exposure and protect Site features

Zoning ordinances can be changed Not retained because does not provide a permanent means groundwater control

Deed NoticesRestrictions

Restrict future groundwater use

Retained

Access Agreements Provide agreements to ensure access for monitoring of Site use inspection and operation and maintenance of removal system(s)

Retained

Public Awareness and Information Programs

Public meetings held to inform public of risks associated with the Site Installationmaintenance of warning signs

Retained

Monitoring of Site Conditions

Inspect Site to ensure non-residential land use Collect environmental samples

Retained

Institutional Controls

Institutional Actions

Security Fencing

Maintenance of existing perimeter fence Installation of a new security fence should implementation of the removal alternative require dismantling of the current fence or if additional areas need to be included within the fence

Retained

Hydraulic Control

Extraction Hydraulic gradient is controlled by pumping groundwater from a strategically placed well network

Not effective because of low permeability soils and potential to extract large volumes of river water Not retained

Containment

Capping Surface Cap

Install a horizontal barrier to prevent infiltration of precipitation and subsequent mobilization of contaminants to groundwater

Retained

Collection Treatment

Extraction Interceptor Trench Construction of a trench to collect groundwater before it enters the wetlands

Retained

US E

PA

Region 3

AR103694

Table 32 (continued) Identification and Preliminary Screening of Groundwater Technologies for Sauer Dump Site

HG

LmdashE

EC

A Form

er Sauer Dum

p and Salvage YardmdashD

undalk Baltim

ore County M

D

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 2 of 2

H

ydroGeoL

ogic Inc April 2009

General Response Action

Technology Type

Technology Process Options Description of Process Option Pre-screening Conclusion

Chemical Physical Treatment

Granulated Activated Carbon

Collected groundwater would be filtered through granular activated carbon before discharge to remove organic contaminants

Retained

Monitored Natural Attenuation

Natural Attenuation Natural attenuation of organic contaminants is achieved via native subsurface microorganisms and naturally occurring physical processes in the subsurface

Retained

AR103695

Table 33 Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 1 of 6

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

No Action None

Take no remedial action Contaminated soils and sediments will be subject to natural conditions and processes

Rank = 5 Does not address risks from Site soils or sediments

Rank = 1 No cost No OampM

Retained as baseline comparison

Deed Notices Restrictions

Restrict use of Parcel 425 to non-residential purposes

Rank = 4 Reduces but does not eliminate human health risks from the Site Does not address ecological risks Does not prevent further contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Required for all alternatives because PRGs based on non-residential use

Access Agreements

Provide agreements to ensure access for monitoring of Site conditions and operationmaintenance of removal system(s)

Rank = 4 Does not address human health or ecological risks Does not affect contaminant migration Allows for effective implementation of other technologies

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

Monitoring of Site Conditions

Monitor Site to confirm implementation of land use controls Monitor operation of any removal system(s)

Rank = 4 Provides information of the implementationoperation of the removal alternative

Rank = 1 Can be easily implemented

Very Low to Low Cost

Retained for development of alternatives

Institutional Controls

Security Fencing

Maintain existing Site fence Re-install Site fence if current one torn down during removal action implementation or if additional areas need to be included within the fence

Rank = 4 Decreases exposure potential for humans Does not address ecological risks or contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Minimal OampM required

Retained for development of alternatives

US E

PA

Region 3

AR103696

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 2 of 6

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Public Awareness Programs

Conduct Public Meeting and issue fact sheets to educate citizens about risks of Site contamination Post warning signs at Site to alert people of associated risks

Rank = 4 Decreases exposure potential for humans Does not address ecological risks or contaminant migration

Rank = 1 Can be easily implemented

Very Low cost

Retained for development of alternatives

Surface Cover ndash Multilayer (RCRA Subtitle C cap)

Install impermeable multi-layered surface cover over contaminated areas on Site

Rank = 2 Limits exposure and transport of contaminants Does not treat or remove contamination Limits allowable future uses of the Site Resealing of cap difficult if breached Exceeds requirements of 40 CFR sect 76161

Rank = 2 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Not retained due to more difficult implementability and higher cost than TSCA cap

Containment

Compacted Soil Cover (TSCA cap)

Install impermeable compacted soil cover over contaminated areas on Site

Rank = 2 Limits exposure and transport of contaminants Does not treat or remove contamination Limits allowable future uses of the Site Resealing of cap relatively simple if cap is breached Meets requirements of 40 CFR sect 76161

Rank = 1 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Retained for development of alternatives

US E

PA

Region 3

AR103697

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 3 of 6

H

ydroGeoL

ogic Inc April 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Containment Surface Cover ndash Asphalt or Concrete

Install asphalt or concrete cap over contaminated areas on-site

Rank = 2 As effective as multilayered cap in controlling exposure and spread of contamination Decreased OampM requirements as compared to multi-layer cap Does not allow for Site re-vegetation Visually unappealing Resealing of cap relatively simple if cap is breached Meets the requirements of 40 CFR sect 76161

Rank = 2 Equipmentskilled workers would be readily available Asphaltconcrete cover would reduce available habitat Maintenance in perpetuity

Low to moderate cost with lower OampM than multi-layer cap

Not retained due to significant impacts to wildlife

Treatment In Situ Soil Flushing

Contaminants are extracted from the soils with an aqueous medium the injected fluid is recovered for treatment and discharge

Rank = 4 Could increase groundwater contaminant levels and the discharge of groundwater contaminants to the adjacent surface water Limited effectiveness in fine-textured soils Not known if technology can attain the PRGs for all of the soil contaminants

Rank = 4 Complicated washing solution regimen needed to treat all contaminants Requires bench-scale and pilot-scale testing to identify optimum wash solutions and injectioncapture systems Requires treatment and disposaldischarge of wash fluid

High cost

Not retained because of soil composition commingled contamination and contaminant migration potential

US E

PA

Region 3

AR103698

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

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ounty MD

General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Ex Situ Soil Washing

Excavated soils are suspended in washing solution to concentrate and extract contaminants Could be applied to excavated sediments

Rank = 3 Eliminates contaminant migration concerns associated with in-situ soil flushing Not known if technology can attain the PRGs for all of the soilsediment contaminants

Rank = 4 Would require bench-scale and pilot-scale testing Wash solution would require treatment and disposal or discharge May not be enough room on- site to hold required system infrastructure and allow for excavation

High cost Not retained due to uncertainty over effectiveness and the difficulty of implementation

Treatment

Ex Situ Thermal Desorption

Excavated soils and sediments (after dewatering) are run through a thermal desorber for removaldestruction of organic compounds

Rank = 3 Excellent organic contaminant removal No inorganic treatment Higher temperatures are required to desorb PCBs

Rank = 4 Specialized equipment Potential for public opposition to air emissions Extensive space requirements for the sediment dewatering staging of untreated and treated soilssediments and desorption unit Requires a significant energy source

Moderate to high cost Pilot study required

Not retained due to associated air emissions noise and the proximity to residential areas

US E

PA

Region 3

AR103699

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

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General Response Technology Description of Process Screening

Effectiveness(1) Implementability(1) Action Process Options Option Cost Conclusion

Treatment Ex Situ Thermal Destruction (Incineration)

Excavated soils are combusted at high temperatures in the presence of oxygen to thermally destroy organic contaminants

Rank = 3 Effective for organic contaminants Not effective for metals

Rank = 5 Mobile units are available but could be subject to a high degree of public opposition Mobile unit would require extensive start-up testing (trial burns) to demonstrate compliance of off-gas treatment system with substantive requirements of air quality regulations Limited availability of off-site incinerators

Very high cost

Retained for use as pre-treatment method for off-site disposal due to technologyrsquos ability to destroy PCBs

Removal Disposal Excavation

Soils and sediments are excavated for further treatment or disposal

Rank = 1 Could achieve all removal objectives if contaminated soils and sediments are removed for treatment or proper off-site disposal

Rank = 2 Can be implemented with readily available construction techniques and equipment Would require space for staging of excavated material and sediments dewatering

Low to high cost No operation and maintenance

Retained for development of alternatives

US E

PA

Region 3

AR103700

Table 33 (continued) Evaluation and Screening of Soil and Sediment Technology Process Options (TPOs) for Sauer Dump Site

HG

LmdashSauer D

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ost Analysismdash

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altimore C

ounty MD

US E

PA

Region 3

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General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

Off-Site Landfill

Excavated soils and sediments are transported to an off-site landfill

Rank = 1 Would achieve all removal objectives

Rank = 4 Soilssediments characterized as hazardous waste would require truck transport to a hazardous waste facility The most contaminated soils would require pre-treatment prior to acceptance by a hazardous waste facility There may be public opposition to significant levels of off-site truck traffic

Moderate to high cost No operation and maintenance

Retained for development of removal alternatives

NOTES (1)TPOs are ranked qualitatively for effectiveness and implementability with 1 representing the most effectiveeasiest to implement and 5 representing the ineffectiveimpossible to implement

AR103701

Table 34 Evaluation and Screening of Groundwater Technology Process Options (TPOs) for Sauer Dump Site

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ounty MD

General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

No Action None

Take no remedial action Contaminated groundwater will be subject to natural conditions and processes

Rank = 5 Does not address risks from Site soils or sediments

Rank = 1 No cost No OampM

Retained as baseline comparison

Deed Notices Restrictions

Restrict future groundwater use

Rank = 4 Reduces but does not eliminate human health or ecological risks Does not prevent further contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

Access Agreements

Provide agreements to ensure access for monitoring of Site conditions and operationmaintenance of removal system(s)

Rank = 4 Does not address human health or ecological risks Does not affect contaminant migration Allows for effective implementation of other technologies

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

Monitoring of Site Conditions

Monitor operation of any removal system(s)

Rank = 4 Provides information of the implementationoperation of the removal alternative

Rank = 1 Can be easily implemented

Very Low to Low Cost

Retained for development of alternatives

Institutional Controls

Public Awareness Programs

Conduct Public Meeting and issue fact sheets to educate citizens about risks of Site contamination Post warning signs at Site to alert people of associated risks

Rank = 4 Decreases exposure potential for humans Does not address ecological risks or contaminant migration

Rank = 1 Can be easily implemented

Very Low cost

Retained for development of alternatives

US E

PA

Region 3

AR103702

Table 34 (continued) Evaluation and Screening of Groundwater Technology Process Options (TPOs) for Sauer Dump Site

HG

LmdashSauer D

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ost Analysismdash

Dundalk B

altimore C

ounty MD

US E

PA

Region 3

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General Response Action

Technology Process Options

Description of Process Option Effectiveness(1) Implementability(1) Cost

Screening Conclusion

Containment Compacted Soil Cover

Install impermeable compacted soil cover over contaminated areas on site

Rank = 3 Limits exposure and transport of contaminants Does not treat or remove contamination Allows groundwater contact with residual contaminants

Rank = 1 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Retained for development of alternatives

Interceptor Trench

Groundwater is collected in an interceptor trench before it enters the wetland areas

Rank = 2 Limits transport of contaminants Does not treat or remove contamination Limits allowable future uses of the Site

Rank = 2 Can be readily implemented Maintenance in perpetuity

Moderate to High Cost Moderate OampM required

Retained for development of alternatives

Extraction Wells

Groundwater is extracted with individual extraction wells

Rank = 4 Site soil type would limit effective radii of influence of wells Wells would also draw in river water into treatment system

Rank = 2 Can be readily implemented Maintenance in perpetuity

Low to Moderate Cost Moderate OampM required

Not retained because of ROI issues and potential for river water withdrawal

GAC

Groundwater is treated with GAC

Rank = 4 Not known if technology can attain the PRGs for groundwater contaminants

Rank = 2 Would require an on-site treatment system

Moderate to High Cost Moderate OampM required

Retained for development of alternatives

Collection Treatment

Monitored Natural Attenuation

Natural Attenuation Rank = 4 Reduces but does not eliminate human health or ecological risks Does not prevent further contaminant migration

Rank = 1 Can be easily implemented

Very Low cost Low OampM

Retained for development of alternatives

NOTES (1)TPOs are ranked qualitatively for effectiveness and implementability with 1 representing the most effectiveeasiest to implement and 5 representing the ineffectiveimpossible to implement

AR103703

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AR103704

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

40 DEVELOPMENT AND DETAILED ANALYSIS OF REMOVAL ALTERNATIVES

The retained TPOs have been assembled into removal alternatives that could potentially meet the removal objectives for the Site In some cases several technologies were combined to provide an efficient and protective approach The removal alternatives include a ldquono actionrdquo alternative as well as combinations of the TPOs retained in Section 33 The proposed alternatives are defined in Section 41 and summarized in Table 41 Section 42 describes the evaluation criteria used to assess the different removal alternatives A detailed evaluation of each alternative is provided in Section 43 and a comparative analysis is provided in Section 44

41 DEVELOPMENT OF ALTERNATIVES

411 Alternative 1 No Action

The no action alternative serves as a basis against which the effectiveness of all the other proposed removal alternatives can be compared Under this alternative the Site would remain in its present condition and the soil and sediment contamination would be subject to natural processes only No monitoring would take place to keep track of any changes

412 Alternative 2 Surface Cap Excavation and Off-Site Disposal

Alternative 2 consists of the following components

bull Removal and off-site disposal of surface debris bull Clearing and grubbing of Parcel 425 and removal and disposal of materials bull Confirmation sampling would proceed concurrently with all excavation to ensure that

removal requirements are met bull Excavation of contaminated soils from Parcels 425 and 574 All contaminated soils

with PCBs greater than 100 ppm regardless of depth and lead greater than 1000 ppm in the upper 2 feet would be excavated for proper off-site disposal

bull Excavation of the contaminated sediments from the affected wetlands All sediments with PCBs greater than 1 part per million (ppm) and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 ppm below that depth would be excavated

bull Verification sampling of sediments along the Back River shoreline to determine the extent of sediments requiring excavation Based on the results sediments with PCBs greater than 1 ppm and lead greater than 130 ppm in the upper 4 feet and any PCBs that exceed 100 ppm below that depth would be excavated

bull Excavation of all contaminated soils with PCBs greater than 1 ppm and lead greater than 400 ppm from the residential properties (Parcels 137 295 464 503 and portions of 574) adjacent to Parcel 425

bull Excavated soils and sediments would be temporarily stockpiled in a staging area established on Parcel 425 Confirmation sampling from the stockpile would be

US EPA Region 3 Sauer Dump Site EECA 4-1 HydroGeoLogic Inc April 2009

AR103705

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 4-2 HydroGeoLogic Inc April 2009

performed to verify that PCB concentrations are less than 100 ppm and lead concentrations are less than 1000 ppm Soils and sediments meeting these criteria would be placed across the upland portions of Parcel 425 Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull After completion of excavation and confirmation sampling all excavated areas with the exception of Parcel 425 would be restored by backfilling and re-vegetation

bull Parcel 425 would be re-graded and compacted after placement of the excavated soils and sediments and backfilled as required to maintain proper grade and drainage in preparation for construction of a TSCA soil cover

bull Construction of a TSCA compacted soil cover over the contaminated soils and sediments which exceed 1 ppm PCBs on Parcel 4253

bull Installation of replacement monitoring wells if necessary and a monitoring program to monitor the effectiveness of the remediation effort and groundwater quality Groundwater monitoring would be conducted on a semi-annual basis for a four-year period beginning after construction activities are complete Constituents to be monitored include lead and PCBs and

bull Implementation of ICs to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area of Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

Prior to the sediment and soil excavation any surface debris on Parcel 425 that could not be placed beneath the cap would be removed and disposed off-site The vegetation within the limits of disturbance for the excavation areas and cover foot print would be cleared grubbed and disposed off-site For costing purposes in the EECA it was assumed that a portion of the surface debris and grubbed material would be hazardous Any monitoring wells located inside the footprint of the cover would be abandoned The contaminated sediments in the affected wetlands would be excavated and placed in lined berms to allow the water to drain After the sediments are decanted they would be dewatered The water removed from the sediments through decanting and dewatering would be treated on-site prior to discharge to the Back River After completion of confirmation sampling and placement of the cover the wetland areas would be restored to their original grade and re-vegetated with native species Submerged sediment samples have been collected 14 times from within the Back River at locations adjacent to the Sauer Dump Site In only one instance (in 1999) were the PCB concentrations in one of these samples (21 ppm) greater than the PRG of 1 ppm Its location is shown on Figure 15 Given the time span since this sample was collected (over nine years)

3 For costing purposes the TSCA cap in Alternatives 2 and 3 was assumed to cover the entire extent of Parcel 425 This was done to account for the excavated soils and sediments (approximately 12600 cubic yards total) being brought back onto this parcel from the wetlands and other contaminate areas and to improve constructability of the cap by having a single continuous cap rather than multiple smaller caps

AR103706

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 4-3 HydroGeoLogic Inc April 2009

the mobile nature of river sediments (especially in a tidal location) and natural attenuation the area is currently assumed to meet the PRGs A total of 20 samples would be collected on a 10 foot grid to determine the extent if any of the area to be excavated Areas with PCBs andor lead concentrations exceeding the Site PRGs would be excavated and handled in the same manner as wetlands sediments Contaminated soils on Parcels 425 and 574 with PCB concentrations greater than 100 ppm and lead concentrations greater than 1000 mgkg would be excavated and properly disposed at an appropriately permitted landfill The lateral extent of the excavation was estimated from soil analytical data and is shown on Figure 41 Confirmation sampling would proceed concurrently with excavation to ensure that removal requirements are met Contaminated soils on the adjacent Parcels 503 464 295 137 and 574 would be excavated Confirmation sampling would proceed concurrently with excavation to ensure that removal requirements are met Prior to excavation access agreements would need to be obtained from the affected property owners The lateral extent of soil contamination in these areas was estimated from surface soil data and is shown on Figure 41 The actual area requiring excavation might be smaller or larger than shown After the completion of the excavation and confirmation sampling the excavated areas on Parcels 503 464 295 137 and 574 would be backfilled to the original grade with clean fill and re-vegetated Excavated soils and sediments with PCB concentrations greater than 100 ppm and less than 500 ppm would be properly disposed at an appropriately permitted RCRA or TSCA landfill The Waste Management facility in Emelle Alabama was the closest identified facility that has the ability to accept hazardous (metals) waste provided that the PCB concentrations in the waste are less than 500 mgkg Soils with PCB concentrations greater than 500 ppm would require incineration and disposal at one of the facilities mentioned in Section 3344 To ensure selection of the proper off-site disposal facility extensive waste characterization sampling would be required For costing purposes it was assumed that all soils and sediments classified as hazardous waste would be transported to the Waste Management facility in Emelle Alabama with the exception of approximately 7542 cubic feet of soilssediments which would require incineration Estimated volumes for Alternative 2 are contained in Appendix B-1 The excavated sediments and the soils that do not require off-site disposal would be placed across the upland portions of Parcel 425 In order to prevent direct contact protect from erosion and prevent migration of hazardous substances Site topography would be contoured and a TSCA compacted soil cover would be continuously installed over the area of Parcel 425 with concentrations of PCBs over 1 ppm4 A network of monitoring wells would be installed to assess the effectiveness of the removal action with respect to decreasing contaminant

4 For costing purposes the TSCA cap in Alternatives 2 and 3 was assumed to cover the entire extent of Parcel 425 This was done to account for the excavated soils and sediments (approximately 12600 cubic yards total) being brought back onto this parcel from the wetlands and other contaminate areas and to improve constructability of the cap by having a single continuous cap rather than multiple smaller caps

AR103707

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

migration via the soil-to-groundwater pathway For costing purposes it was assumed that the monitoring well network would consist of seven wells After installation of the cover deed noticesrestrictions would be applied to Parcel 425 to maintain the future land use as non-residential and to prevent activities which could damage the compacted soil cover A security fence would be installed around the cover and warning signs posted along the fence Access agreements would be obtained from the current property owners to allow for land use monitoring and cover maintenance This alternative requires long-term maintenance of the cover and monitoring of the Site conditions Cover maintenance includes periodic inspections and the repair of any damage to the cover Long-term monitoring would include land use monitoring groundwater monitoring and surface water monitoring The purpose of the groundwater and surface water monitoring would be to assess the effectiveness of the action with respect to contaminant migration

413 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment

This alternative includes the same elements as Alternative 2 with the following exceptions

bull All contaminated soils (regardless of depth) with PCBs greater than 10 ppm andor lead greater than 400 ppm from Parcels 425 and 574 would be excavated for proper off-site disposal

bull All of the contaminated sediments with PCBs greater than 1 ppm andor lead greater than 130 ppm from the affected wetlands and along the Back River shoreline would be excavated regardless of depth

bull Excavated soils and sediments with PCB concentrations less than 10 ppm and lead concentrations less than 400 ppm would be placed across the upland portions of Parcel 425 for capping Soils and sediments exceeding these criteria would be transported off-site for proper disposal

bull Installation of a groundwater collection system to control off-site migration of groundwater from the former dump area

bull Installation of a groundwater treatment system to remove lead and PCBs from the captured groundwater and discharge the water to the Back River

bull Implementation of long-term operation maintenance and monitoring for the groundwater collection and treatment system and

bull Implementation of Institutional Controls to ensure that future land use remains non-residential on Parcel 425 to provide long-term Site access for monitoring and maintenance of TSCA cover installation and maintenance of fence around capped area of the Site recordation of deed notices to notify any future purchasers of the property of the need for continued maintenance of the TSCA cover and fence and the cleanup levels left at the Site

The lateral extent of the excavation required under this alternative was estimated from soil analytical data and is shown on Figure 43

US EPA Region 3 Sauer Dump Site EECA 4-4 HydroGeoLogic Inc April 2009

AR103708

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

The available data indicate that much of the soils to be excavated could meet the definition of a non-hazardous waste These soils could be disposed at a local non-hazardous waste landfill As in Alternative 2 soils with PCB concentrations greater than 500 ppm would require incineration and proper disposal at one of the three facilities mentioned in Section 3344 To ensure selection of the proper off-site disposal facility extensive waste characterization sampling would be required For costing purposes it was assumed that all soils and sediments classified as hazardous waste would be transported to the Waste Management facility in Emelle Alabama with the exception of approximately 7542 cubic feet of soilssediments which would require incineration Estimated volumes for Alternative 3 are contained in Appendix B-2 The groundwater collection and treatment system would consist of the following major components

bull Three (3) groundwater interceptor trench segments located along the south east and west portions of Parcel 425 (Figure 44) Each trench would contain groundwater extraction sumps with submersible groundwater extraction pumps and piping to transfer extracted groundwater to an on-site treatment facility Two groundwater extraction sumps and pumps would be sufficient to provide hydraulic control

bull A groundwater treatment building constructed on the southern portion of Parcel 425 The treatment building would house a groundwater treatment process consisting of temporary storage of extracted groundwater (surge tank) a pre-filtration system consisting of two basket strainers connected in series two granular activated carbon adsorbers connected in series and all associated process piping controls and transfer pumps

bull A treated groundwater discharge line to transfer treated water to an outfall at the southern boundary of Parcel 425 discharging to the Back River in compliance with the substantive requirements of a NPDES permit

Groundwater flows from north to south across the Site discharging into the Back River The south interceptor trench would be located and installed at the location shown on Figure 44 to hydraulically control groundwater flow into the river Groundwater would be extracted from the interceptor trench at a rate suitable to maintain a slight (05 feet) hydraulic gradient toward the trench and away from the river The interceptor trench segments along the sides of Parcel 425 would be installed to hydraulically control groundwater flow that could otherwise migrate off-site toward residential areas (Parcels 503 and 464) and the wetlands areas to the west and southeast Groundwater would be extracted from the interceptor trench at a rate suitable to maintain a slight (05 feet) hydraulic gradient toward the trench and away from off-site areas The interceptor trenches would extend to approximately three (3) feet below mean sea level to allow for an adequate collection sump depth The trenches would be filled with clean gravel to

US EPA Region 3 Sauer Dump Site EECA 4-5 HydroGeoLogic Inc April 2009

AR103709

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

a depth approximately three (3) feet above mean sea level A filter fabric would be installed above the gravel zone to minimize silting and the remaining trench depth would be backfilled with native soils Three (3) perforated vertical collection sumps would be installed along the length of each trench and submersible groundwater extraction pumps with level control floats would be installed within each sump Based on permeability and other data provided in the RI and Extent of Contamination Study reports a design flow rate of four (4) gallons per minute would be used Extracted groundwater would be transferred to the treatment building and into two (2) 2500 gallon holding tanks A transfer pump would transfer the groundwater from the holding tank through the two (2) basket strainers through the two (2) GAC absorbers through a recording totalizing flow meter and out to the treated water outfall Spent basket filter bags and GAC would be contained and disposed of or regenerated off-site on an as needed basis For the purposes of the cost estimate it is assumed that the system would be checked by a part-time operator weekly The system would be inspected and repaired as necessary by the operator Quarterly NPDES sampling and analysis and annual reporting would also be performed Quarterly inspections by a process engineer are also included in the cost estimate Detailed cost calculations are presented in Appendix B-2 Alternative 3 requires long-term maintenance of the cover groundwater treatment system and monitoring of the Site conditions Cover maintenance includes periodic inspections and the repair of any damage to the cover Long-term maintenance of the groundwater treatment system would include regularly scheduled monitoring maintenance replacement and disposal of spent basket filters bags and periodic replacement of the GAC Long-term monitoring would include both groundwater and surface water monitoring

414 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment

This alternative consists of the elements of Alternative 2 with the following additional components

bull Excavation of contaminated soils with PCBs greater than 1 ppm andor lead greater than 400 ppm regardless of depth from all parcels for proper off-site disposal

bull Excavation of the contaminated sediments from the affected wetlands regardless of depth All sediments with PCBs greater than 1 ppm andor lead greater than 130 ppm would be excavated for proper off-site disposal

bull Proper off-site landfilling of excavated soils with greater than 1 ppm and less than 500 ppm of PCBs

bull After completion of excavation and confirmation sampling all excavated areas would be restored

bull Installation of a groundwater collection and treatment system and associated long-term monitoring and maintenance as described for Alternative 3 and

bull Recordation of deed notices to ensure that groundwater use is restricted if necessary

US EPA Region 3 Sauer Dump Site EECA 4-6 HydroGeoLogic Inc April 2009

AR103710

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

The estimated lateral extent of the excavation required under this alternative was estimated from soil analytical data and is shown on Figure 45 Excavated soils with PCB concentrations greater than 50 ppm and less than 500 ppm would be excavated and disposed at a RCRA or TSCA-licensed landfill The Waste Management facility in Emelle Alabama was the closest identified facility that has the ability to accept hazardous (metals) waste provided that the PCB concentrations in the waste are less than 500 ppm Soils with PCB concentrations greater than 500 ppm would require incineration and disposal at one of the three facilities mentioned in Section 3344 Excavated soils and sediments that meet the definition of a non-hazardous waste would be disposed at a local non-hazardous waste landfill To ensure selection of the proper off-site disposal facility extensive waste characterization sampling would be required For costing purposes it was assumed that all soils and sediments classified as hazardous waste would be transported to the Waste Management facility in Emelle Alabama with the exception of approximately 7542 cubic feet of soilssediments which would require incineration Estimated volumes for Alternative 4 are contained in Appendix B-3 Under Alternative 4 no compacted soil cover is required because the remaining soils would meet the PRGs as well as the PCB cleanup standards for a ldquoHigh Occupancy Areardquo under TSCA Soil removal to residential based PRGs would also eliminate the need for future land use controls and long-term monitoring The groundwater collection and treatment systems would be the same as for Alternative 3

42 EVALUATION CRITERIA

According to the guidance document Conducting Non-Time-Critical Removal Actions Under CERCLA (EPA 1993) removal alternatives should be evaluated based on effectiveness implementability and cost Effectiveness can be evaluated in terms of protectiveness and ability to achieve removal objectives The protectiveness evaluation should consider public health and the environment impacts on the community impacts to workers involved with removal action implementation and compliance with ARARs Implementability addresses the technical and administrative feasibility of implementing an alternative including the availability of services and materials required for its implementation the ease of construction and operation monitoring considerations the historical reliability of selected technologies and the ease with which the alternative can be integrated with other actions that might be necessary at the Site The total cost for the removal action includes capital and OampM costs both direct and indirect Capital costs consist of the direct costs for items such as labor materials equipment and services plus the indirect costs for remedial design management and contingencies A 15 contingency was utilized in all capital cost estimates for all alternatives OampM costs are the

US EPA Region 3 Sauer Dump Site EECA 4-7 HydroGeoLogic Inc April 2009

AR103711

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

annual post-construction costs necessary to maintain the treatment or containment system OampM costs include such items as operating labor maintenance auxiliary materials and energy A present worth analysis is used to evaluate expenditures that occur over different time periods by discounting all future costs to a common base year In accordance with EPA guidance present worth estimates are calculated using a 7 discount rate over 30 years (EPA 2000) with 2009 as a base year The cost estimates in this report are order-of-magnitude level estimates based on a variety of information including quotes from suppliers generic unit costs vendor information conventional cost estimating guides and professional judgment

43 DETAILED ANALYSIS OF ALTERNATIVES

In this section all the alternatives retained for detailed analysis are evaluated based on the evaluation criteria described in Section 42

431 Alternative 1 No Action

4311 Effectiveness

Because no action would be performed this alternative would not protect human health or the environment Current and future risks from soil and sediment contamination at the Site would not be significantly different from those identified in the baseline risk assessment ARARs would not be met Because no action would be taken this alternative does not pose any risks associated with implementation

4312 Implementability

Because no action would be taken this alternative would be implemented easily

4313 Cost

There are no costs associated with Alternative 1

432 Alternative 2 Surface Cap Excavation and Off-Site Disposal

4321 Effectiveness

This alternative would effectively prevent human and ecological receptors from contacting the contaminated soils and sediments as long as the TSCA cover portion of the remedy is maintained In addition an intact cover would effectively prevent soil and sediment contaminant migration via erosion and overland flow Due to its ability to substantially reduce precipitation infiltration the TSCA soil cover would decrease the potential for soil contaminants to leach to the underlying groundwater However this Site is adjacent to surface

US EPA Region 3 Sauer Dump Site EECA 4-8 HydroGeoLogic Inc April 2009

AR103712

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

water or wetlands on three of four sides has subsurface soil contamination present at depths that are close to the water table and has groundwater that is tidally influenced It might be possible for tidal influences andor severe storms to cause the groundwater surface beneath the cover to increase to such an extent that the groundwater would be in contact with the contaminated soils In this situation contaminant migration via the soil-to-groundwater pathway could occur While Alternative 2 does not initially provide for groundwater treatment if the monitoring program implemented as part of this alternative indicates that unacceptable levels of Site contaminants are impacting the groundwater andor the Back River a groundwater capture and treatment system could be put in place to address the problem Continued maintenance of the cover is required to ensure long-term protection of human health and the environment If the cover were damaged or breached then people or animals could come in contact with the contaminated soilssediments and contaminant migration could occur The Site is next to a tidally-influenced area and is located within the floodplain Storm events and flooding could increase the potential for the cover to be damaged and breached and would increase long-term maintenance requirements Long-term monitoring is required to ensure that future land use remains consistent with the PRGs This alternative would comply with ARARs provided the entire Site is classified as a single Area of Concern (AOC) to meet the land disposal restriction (LDR) criteria in the TSCA and RCRA According to the Superfund LDR Guide 5 (EPA 1989) ldquoplacement does not occur when wastes are left in place or moved within a single Area of Contaminationrdquo The zones of contamination at the Site are contiguous found in adjacent parcels and consistent with the AOC concept The Site cleanup will also meet the risk-based criteria of the TSCA regulations at 40 CFR sect 76161(c) There is potential for short-term impacts during excavation and construction but these impacts can be mitigated through the use of standard engineering controls Short-term impacts to the adjacent wetlands would be addressed by restoring the wetlands to the original grade and re-vegetating Truck shipments required for off-site disposal of the soils could increase the potential for traffic accidents and could disturb the traffic patterns in the local community However these impacts would be short term and maintaining open communication with residents of the community could mitigate these concerns Alternative 2 would decrease soil and sediment contaminant mobility toxicity and volume It would decrease contaminant mobility toxicity and volume in groundwater but would not completely prevent off-site groundwater migration

4322 Implementability

This alternative could be implemented with standard construction equipment and readily available materials and labor No major technical difficulties are anticipated in implementing this alternative However there are only three facilities capable of incinerating the Site soilssediments with PCB concentrations greater than 500 ppm These facilities are in Texas

US EPA Region 3 Sauer Dump Site EECA 4-9 HydroGeoLogic Inc April 2009

AR103713

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

and Utah necessitating the use of long distance truck andor rail transportation This off-site transport has the potential to result in off-site contamination through spills or accidents Access agreements and schedule coordination with the owners of Parcels 503 464 295 137 and 574 would be required Construction of a compacted soil cover would limit future uses of Parcel 425 Long-term administrative resources would be required to ensure compliance with the ICs and maintenance of the cover

4323 Cost

This section presents the present worth analysis for the compacted soil cover Uncertainties that could impact the total cost of this alternative include the extent of surficial debris which would require removal and off-site disposal and the volume of sediments and soils to be excavated and disposed off-site

Cost The cost calculations for Alternative 2 are presented in Appendix B-1

The capital cost for Alternative 2 is estimated to be $ 531 Million

The present worth OampM cost is approximately $ 729000

The total project cost (present worth) is estimated to be $ 604 Million

433 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment

4331 Effectiveness

Alternative 3 would be more effective at reducing risks related to Site contamination than Alternative 2 because soils with PCB concentrations greater than 10 ppm (instead of 100 ppm) or lead concentrations greater than 400 ppm (instead of 1000 ppm) would be removed from the Site Additionally Alternative 3 would provide controls to prevent off-site migration of groundwater from beneath the compacted soil cap because it would provide for collection and treatment of groundwater The excavation and off-site disposal of additional contaminated soils and sediments and the construction of a groundwater collection and treatment system would increase short-term impacts including increased excavation and construction activities as well as increased truck traffic Alternative 3 would comply with ARARs if the Site is considered to be a single AOC with respect to LDR compliance as in Alternative 2 However because no soils with PCB concentrations greater than 10 ppm would be left on Site (under the TSCA cover) this alternative would meet the cleanup requirements for a High Occupancy Area under 40 CFR sect 76161 if the self-implementing cleanup provisions were applicable to CERCLA cleanups The groundwater collection and treatment system would have the added benefit of preventing the potential migration of contaminated groundwater to the wetland areas

US EPA Region 3 Sauer Dump Site EECA 4-10 HydroGeoLogic Inc April 2009

AR103714

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

and surface waters Alternative 3 would decrease contaminant mobility toxicity and volume in soils sediments and groundwater

4332 Implementability

Alternative 3 would be somewhat more difficult to implement than Alternative 2 because of the additional volume of soils and sediments to be excavated for off-site disposal and the construction of a groundwater collection treatment and discharge system The additional volume of soils and sediments excavated for off-site disposal would lead to an increase in truck traffic with the resultant impacts to the community and increased risk of accidents and spills While a NPDES permit would not be required to discharge the treated groundwater to the Back River compliance with the substantive provisions of 40 CFR Part 122 would be necessary For groundwater the treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively It would be difficult or impossible to achieve the required PCB levels Additional long-term administrative resources would be required to ensure maintenance and monitoring of the groundwater collection and treatment systems This would include weekly treatment system checks quarterly NPDES sampling analysis and annual reporting quarterly inspections by a process engineer replacement and disposal of spent basket filters bags and periodic regeneration and replacement of GAC Spent basket filter bags would be contained and disposed of as needed

4333 Cost

This section presents the present worth analysis for construction of a surface cap excavation off-site disposal of the soils and sediments and groundwater treatment Uncertainties that could impact the total cost of this alternative include the extent of surficial debris which would require removal and off-site disposal and the volume of sediments and soils to be excavated and disposed off-site The cost calculations for Alternative 3 are presented in Appendix B-2

The capital cost for Alternative 3 is estimated to be $ 777 Million

The present worth OampM cost is approximately $ 163 Million

The total project cost (present worth) is estimated to be $ 939 Million

434 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment

4341 Effectiveness

Because all soils and sediments with contamination concentrations above the PRGs would be removed from the Site Alternative 4 would provide the greatest long-term protection to human

US EPA Region 3 Sauer Dump Site EECA 4-11 HydroGeoLogic Inc April 2009

AR103715

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

health and the environment and more effective control of contaminant migration relative to the other alternatives As with Alternative 3 the groundwater collection and treatment system would prevent the potential migration of residual contaminated groundwater to the wetland areas and surface waters Alternative 4 shares the same short-term excavation construction and transportation impacts identified for Alternative 3 however truck traffic would be greatly increased This alternative would decrease contaminant mobility toxicity and volume in soils sediments and groundwater

4342 Implementability

Because all soils and sediments would be disposed off-site there would be a significant increase in truck traffic relative to the other alternatives Public opposition to the traffic impacts from the extensive off-site transportation requirements of this alternative could potentially make implementability more difficult than for Alternative 3 Off-site transport has the potential to result in off-site contamination through spills or accidents Although an NPDES permit would not be required to discharge the treated groundwater from the groundwater management system to the Back River compliance with the substantive provisions of 40 CFR Part 122 would be necessary The groundwater treatment requirements for lead and PCBs are 81 ugl and 0000064 ugl respectively It would be difficult or impossible to achieve the required PCB treatment levels Long-term administrative resources would be required to ensure maintenance and monitoring of the collection and treatment systems

4343 Cost

This section presents the present worth analysis for excavation off-site disposal of the soils and sediments and groundwater treatment Uncertainties that could impact the total cost of this alternative include the quantity of soils and sediments that would be required to be disposed off-site Cost The cost calculations for Alternative 4 are presented in Appendix B-3

The capital cost for Alternative 4 is estimated to be $ 1141 Million

The present worth OampM cost is approximately $ 132 Million

The total project cost (present worth) is estimated to be $ 1272 Million

44 COMPARATIVE ANALYSIS OF ALTERNATIVES

In this subsection the removal alternatives are compared to each other based on the three evaluation criteria

US EPA Region 3 Sauer Dump Site EECA 4-12 HydroGeoLogic Inc April 2009

AR103716

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

441 Effectiveness

Alternative 1 No Action would not provide long-term protection of human health or the environment nor would it decrease contaminant migration Alternative 2 (Surface Cap Excavation and Off-Site Disposal) Alternative 3 (Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment) and Alternative 4 (Excavation Off-Site Disposal and Groundwater Collection and Treatment) would reduce human health and ecological risks from soil and sediment contamination by eliminating or reducing the potential for contact with the contaminated soils and sediments and by reducing the volume of contamination in soils and sediments Alternatives 2 3 and 4 would decrease migration of soil and sediment contaminants to other media by requiring installation of a cap over the contaminants left on-site (Alternatives 2 and 3) or by removing the contamination (Alternative 4) Under Alternatives 2 and 3 there would be the long-term potential for groundwater to contact the contaminated soils and for storms and flood events to damage the containment system but because Alternative 3 removes contaminants down to a lower concentration the potential for groundwater impacts is reduced Both alternatives would require long-term maintenance to ensure the integrity of the compacted soil cover Alternatives 3 and 4 include a groundwater collection and treatment system that would reduce the spread of Site contaminants by preventing or limiting the migration of groundwater to the wetlands areas and the Back River For these reasons Alternative 2 would provide less long-term protection than Alternatives 3 or 4 Alternative 4 would provide the highest degree of long-term protection to human health and the environment and would prevent future migration of contaminants Alternative 1 would not comply with ARARs Alternatives 2 3 and 4 would comply with all potential ARARs although Alternatives 2 and 3 would require that the entire Site be considered a single Area of Concern for purposes of meeting LDR requirements Although Alternative 2 would not meet the PCB cleanup levels (lt10 ppm left on-site under a TSCA cap) in the self-implementing provisions of 40 CFR sect 76161(a)(4)(i)(A) for High Occupancy Areas the self-implementing cleanup provisions are not binding upon cleanups conducted under CERCLA and this alternative would meet the risk-based criteria of 40 CFR sect 76161(c) Alternatives 2 3 and 4 would reduce the mobility toxicity and volume of the contaminants in the soils and sediments with Alternative 4 having the greatest reduction followed by Alternative 3 and Alternative 2 Alternative 1 would not affect contaminant mobility toxicity or volume The implementation of Alternative 1 would not pose any additional short-term risks to the ones currently posed by the Site contamination Short-term risks to construction workers surrounding communities and the environment are expected to occur from the implementation of Alternatives 2 3 and 4 These risks include exposure to dust and vapor during excavation and construction activities as well as continued risks from the current Site conditions before the alternatives are fully implemented Alternatives 3 and 4 pose greater short-term impacts as compared to Alternative 2 due to more extensive excavation and off-site transportation of

US EPA Region 3 Sauer Dump Site EECA 4-13 HydroGeoLogic Inc April 2009

AR103717

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 4-14 HydroGeoLogic Inc April 2009

contaminated materials and additional construction activity associated with the groundwater collection and treatment system Engineering controls personal protective equipment and vapor and dust suppression measures can be used to mitigate the potential risks associated with the excavation and construction activities

442 Implementability

Alternative 1 requires no action and is therefore the most easily implemented For Alternatives 2 3 and 4 there is the possibility that the owners of Parcels 503 464 295 137 and 574 would not provide access to allow excavation of the contaminated soils on their properties However since all the property owners have granted access for sampling activities it is assumed that access would be granted to allow cleanup of their properties Alternatives 2 3 and 4 would require limiting the future use of Parcel 425 because of the need to protect monitor and maintain the compacted soil cover andor the groundwater collection and treatment system All three alternatives require long-term maintenance The long-term maintenance requirements of Alternative 3 would require additional resources as compared to Alternatives 2 and 4 Alternative 2 would require the fewest additional resources of the three alternatives There could be public opposition to alternatives 2 and 3 as they would leave hazardous substances in place at the Site There could also be public opposition to the excavation activities and increased traffic impacts associated with the off-site transportation of the excavated soils and sediments as part of all three alternatives however Alternatives 3 and 4 would have a significantly greater traffic impact due to the increased volumes of contaminated soils and sediments that would be disposed off-site as well as increased excavation and construction activities

443 Cost

Alternative 1 has the least cost $0 Alternative 2 has the next lowest cost $ 604 million Of the removal alternatives which provide some measure of groundwater control in addition to soil and sediment remediation Alternative 3 with a $ 939 million present worth is the least expensive and Alternative 4 with a $ 1272 million present worth is the most expensive alternative

AR103718

TABLE

AR103719

Table 41 Individual Evaluation of Remedial Alternatives for Sauer Dump Site

Sauer Dum

p Site EE

CA

Sheet 1 of 2

H

ydroGeoL

ogic Inc March 2009

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

Criteria Alternative 1 No Action

Alternative 2 Surface Cap Excavation

and Off-Site Disposal

Alternative 3 Surface Cap Excavation

Off-Site Disposal and Groundwater Collection and

Treatment

Alternative 4 Excavation Off-Site

Disposal and Groundwater Collection

and Treatment 1 EFFECTIVENESS

Long-term protection of human health and the environment

No significant reduction in risk Not protective of human health or the environment

Would provide long-term protection of human health and the environment provided that the cover is maintained properly

Would provide long-term protection of human health and the environment provided that the cover and groundwater treatment system are maintained properly

Would provide long-term protection of human health and the environment provided that the groundwater treatment system is maintained properly

Long-term prevention of contaminant migration

No reduction in contaminant migration potential

Migration of soil and sediment contaminants would be significantly decreased There would be potential for groundwater contaminants to increase if groundwater comes into direct contact with contaminated subsurface soils

Migration of soilsediment and groundwater contaminants would be significantly decreased Although the potential would exist (as in Alternative 2) for GW to come into contact with residual contamination there would be lower concentrations of contamination than in Alternative 2

Because contaminated materials would be removed from Site down to the PRGs of 1 ppm PCBs and 400 ppm of lead migration of groundwater contaminants would be significantly decreased

Compliance with ARARs

Would not comply with ARARs

Would comply with potential ARARs as long as the entire Site is considered a single Area of Concern

Would comply with potential ARARs as long as the entire Site is considered a single Area of Concern

Would comply with potential ARARs

Short-term protection of human health and the environment

No short-term impacts

Impacts from excavation and construction activities could be mitigated with engineering controls personal protective equipment and vapordust suppression measures

See Alternative 2 Alternative 3 would pose increased potential for traffic accidents and off-site spills due to off-site transportation of additional excavated soils and sediments

See Alternative 2 Alternative 4 would pose increased potential for traffic accidents and off-site spills due to off-site transportation of all excavated soils and sediments

US E

PA

Region 3

AR103720

Table 41 (continued) Individual Evaluation of Remedial Alternatives for Sauer Dump Site

HG

LmdashSauer D

ump R

evised Draft E

ngineering EvaluationC

ost Analysismdash

Dundalk B

altimore C

ounty MD

US E

PA

Region 3

Sauer Dum

p Site EE

CA

Sheet 2 of 2

H

ydroGeoL

ogic Inc March 2009

Criteria Alternative 1 No Action

Alternative 2 Surface Cap Excavation

and Off-Site Disposal

Alternative 3 Surface Cap Excavation

Off-Site Disposal and Groundwater Collection and

Treatment

Alternative 4 Excavation Off-Site

Disposal and Groundwater Collection

and Treatment

Decrease in contaminant mobility toxicity and volume

No change in contaminant mobility toxicity or volume

Contaminant mobility toxicity and volume would be decreased in soils and sediments Because of the proximity of contaminated materials to groundwater and the tidal influence on the local groundwater it is possible that contaminants would continue to spread to the groundwater

Contaminant mobility toxicity and volume would be decreased to a greater degree than Alternative 2 It is possible that contaminants would continue to spread to the groundwater but the groundwater management system would reduce the mobility of these contaminants

Contaminant mobility toxicity and volume would be decreased to a greater degree than Alternative 3

2 IMPLEMENTABILITY

Potential Implementability Issues

None

Owners might not grant access to allow excavation of contaminated soils andor sediments Parcel 425 would require limited future land use options associated with compacted soil cover There could be local opposition to the capping of hazardous substances in place at the Site

See Alternative 2 It is unknown if technology can attain the PRGs for PCBs

Owners might not grant access to allow excavation of contaminated soils andor sediments Parcel 425 would require limited future land use options associated with the groundwater collection and treatment system There could be public opposition to the extensive truck traffic required for off-site transportation of the contaminated soils and sediments It is unknown if technology can attain the PRGs for PCBs

3 COST Total Project Cost $0 $ 604 Million $ 939 Million $ 1272 Million

AR103721

FIGURES

AR103722

Legend

Figure 41Alternative 2

Proposed Limits ofSoil Excavation

XEPA010SauerCost_Analysis_DraftExc_Limits_Alt2mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

XW

XWXW

XW

XWXWXWXWXWXWXWXWXWXW

XW

XWXWXW

XWXW

XW

XW

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3

Parcel Boundary

NoteThe proposed surface cap under Alternative 2 will extend over the entire area of Parcel 425The proposed limits of sediment excavation are shown on Figure 15

Grid Soil Samples

0 80 16040

SCALE IN FEET

Proposed Limits of Excavation

Surveyed Wetlands(ENSAT 2005)

Subsurface Soil Sample ExceedingAlternative 2 ConcentrationRequiring Excavation

Surface and Subsurface Soil SampleExceeding Alternative 2 ConcentrationRequiring Excavation

XW

Surface Soil Sample ExceedingAlternative 2 ConcentrationRequiring Excavation

AR103723

Legend

Figure 42Alternatives 2 and 3

Proposed Extentof TSCA Cap

XEPA010SauerCost_Analysis_DraftCompacted_Soil_Alt2-3mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

Grid Soil Samples

Surveyed Wetlands(ENSAT 2005)

Proposed Extent of TSCA Cap

AR103724

Legend

Figure 43Alternative 3

Proposed Limits ofSoil Excavation

XEPA010SauerCost_Analysis_DraftExc_Limits_Alt3mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

X

X

X XXXX X

X

X

XXXXXXXXXX

X

XXX

XXX

XX

X

X

X

W

W

W WWWW W

W

W

WWWWWWWWWW

W

WWW

WWW

WW

W

W

W

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

NoteThe proposed surface cap under Alternative 3 will extend over the entire area of Parcel 425The proposed limits of sediment excavation are shown on Figure 15

Grid Soil Samples

Proposed Limits of Excavation

Surveyed Wetlands(ENSAT 2005)

Surface Soil Sample ExceedingAlternative 3 ConcentrationRequiring Excavation

Subsurface Soil Sample ExceedingAlternative 3 ConcentrationRequiring Excavation

Surface and Subsurface Soil SampleExceeding Alternative 3 ConcentrationRequiring Excavation

XW

AR103725

Legend

Figure 44Alternatives 3 and 4

Proposed GroundwaterInterceptor Trench Locations

XEPA010SauerCost_Analysis_DraftGW_TrenchmxdMap Source NAIPMiddle River MD 2007022309 PD

HGLmdashDraft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

Parcel 425

Parcel 137

Parce

l 295

Parce

l 464

Parce

l 503

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

Surveyed Wetlands(ENSAT 2005)

Notes1 All soil samples shown on figure contained one or more PRG exceedances2 All grid soil samples collected exceeded PRGs

Groundwater Interceptor Trench

Groundwater Interceptor Trench

AR103726

Legend

Figure 45Alternative 4

Proposed Limits ofSoil Excavation

XEPA010SauerCost_Analysis_DraftExc_Limits_Alt4mxdMap Source NAIPMiddle River MD 2007042409 TB

HGLmdashRevised Draft Engineering EvaluationCost AnalysisFormer Sauer Dump and Salvage YardmdashDundalk Maryland

ppb

XW

XW

XW XWXWXWXWXW XW

XW

XW

XWXWXWXWXWXWXWXWXWXW

XW

XWXWXW

XWXWXW

XWXW

XW

XW

XW

Parcel 425

Parcel 137

Parc

el 29

5

Parc

el 46

4

Parc

el 50

3

Parcel 532

Parcel 574

Back River

SouthwestFinger

Pond Area

SoutheastFinger

Back River Wetland Area

sup3 0 80 16040

SCALE IN FEET

Parcel Boundary

NoteThe proposed limits of sediment excavation are shown on Figure 15

Grid Soil Samples

Proposed Limits of Excavation

Surveyed Wetlands(ENSAT 2005)

Surface Soil Sample ExceedingAlternative 4 ConcentrationRequiring Excavation

Subsurface Soil Sample ExceedingAlternative 4 ConcentrationRequiring Excavation

Surface and Subsurface Soil SampleExceeding Alternative 4 ConcentrationRequiring Excavation

XW

AR103727

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

50 SUMMARY

Based on the potential ARARs and PRGs presented in Section 2 four removal alternatives were developed These alternatives were 1) No Action 2) Surface Cap Excavation and Off-Site Disposal 3) Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment and 4) Excavation Off-Site Disposal and Groundwater Collection and Treatment Each alternative was evaluated with respect to effectiveness implementability and cost Alternative 1 No Action would not be an effective alternative This alternative would not protect human health or the environment would not prevent contaminant migration and would not comply with ARARs Alternatives 2 3 and 4 generally provide effective approaches to the protection of human health and the environment All three alternatives would comply with ARARs although Alternatives 2 and 3 rely on the classification of the entire Site as a single Area of Concern Alternatives 2 3 and 4 would decrease migration of soil and sediment contaminants to other media Under Alternatives 2 and 3 there is the long-term potential for groundwater to contact the contaminated soils and for storms and flood events to damage the containment system but because Alternative 3 removes contaminants down to a lower concentration the potential for groundwater impacts is reduced Both alternatives would require long-term maintenance to ensure the integrity of the compacted soil cover Alternatives 3 and 4 include a groundwater collection and treatment system that reduces the spread of Site contaminants by preventing or limiting the migration of groundwater to the wetlands areas and the Back River For these reasons Alternative 2 would provide less long-term protection than Alternatives 3 or 4 Alternative 4 would provide the highest degree of long-term protection to human health and the environment and would prevent future migration of contaminants All alternatives would prevent continued migration of soil and sediment contaminants Alternatives 2 3 and 4 each would pose short-term risks to workers and the community These risks however could be mitigated through use of engineering controls personal protective equipment and vapordust suppression measures Alternative 4 would pose the greatest short-term risks because of the significant increase in truck traffic required Alternative 2 should pose the lowest level of short-term risks Alternatives 2 3 and 4 would all decrease contaminant mobility and would reduce contaminant toxicity and volume The reduction in contaminant toxicity mobility and volume achieved with Alternative 4 would be the greatest followed those seen with Alternative 3 The implementability evaluation indicated that Alternative 4 would likely be the most difficult to implement because of the need for the groundwater management system and the off-site disposal of all contaminated soils and sediments Alternatives 3 and 4 may be difficult to implement because of the PRGs for groundwater Aside from the No Action Alternative Alternative 2 would be the easiest to implement

US EPA Region 3 Sauer Dump Site EECA 5-1 HydroGeoLogic Inc April 2009

AR103728

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 5-2 HydroGeoLogic Inc April 2009

Alternative 2 at a total present worth of $ 604 million would be less expensive than Alternatives 3 and 4 Alternative 4 has the both the highest degree of protectiveness and the greatest estimated cost $ 1272 million Alternative 3 would provide a high degree of protection at a cost of $ 939 million The comparison performed as part of this evaluation indicates that while Alternative 4 appears to be the most protective Alternatives 2 through 4 are all generally protective The incremental cost increases (approximately 55 between Alternatives 2 and 3 and 35 between Alternatives 3 and 4) are accompanied by increases in overall protectiveness that are difficult to quantify accurately and in the case of the groundwater pathway may be difficult or impossible to achieve in practice Alternative 2 appears to be the most easily implemented and least costly protective approach for this Site

AR103729

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

60 REFERENCES

Air Force Center for Environmental Excellence (AFCEE) 1999 ldquoSurvey of Air Force Landfills Their Characteristics and Remediation Strategiesrdquo Prepared for Air Force Center for Environmental Excellence by Mitretek Systems July 1999

Environmental Service and Technology Corporation (ENSAT) 2002a ldquoRemedial

Investigation and Focused Feasibility Study ndash Sauer Dump MD-181 4225 Lynhurst Road Baltimore Baltimore County Marylandrdquo ENSAT July 2002

ENSAT 2002b ldquoBaseline Risk Assessment Datascreen for Sauer Dump Dundalk

Marylandrdquo ENSAT July 2002 ENSAT 2005 ldquoRemedial Investigation - Sauer Dump MD-181 4225 Lynhurst Road

Baltimore Baltimore County Marylandrdquo ENSAT August 2005 Environmental Protection Agency (EPA) 2007 ldquoAction Memo - Request for Removal Action

and Exemption from the $2 Million Statutory Limit ndash Sauer Dumprdquo US Environmental Protection Agency August 3 2007

EPA 2006 ldquoNational Recommended Water Quality Criteriardquo Office of WaterOffice of

Science and Technology US Environmental Protection Agency July 2006 httpwwwepagovwatersciencecriteriawqctablenrwqc-2006pdf

EPA 2000 ldquoA Guide to Developing and Documenting Cost Estimates during the Feasibility

Studyrdquo EPA 540-R-00-002 OSWER 93550-75 US Environmental Protection Agency July 2000

EPA 1994 ldquoRevised Interim Soil Lead Guidance for CERCLA Sites and RCRA Corrective

Action Facilitiesrdquo OSWER Directive 93554-12 US Environmental Protection Agency July 14 1994

EPA 1993 Conducting Non-Time-Critical Removal Actions Under CERCLA EPA540F-

94009 EPA 1992 ldquoCERCLASUPERFUND Orientation Manualrdquo EPA542R-92005 US

Environmental Protection Agency - Office of Solid Waste and Emergency Response Technology Innovation Office October 1992

EPA 1989 ldquoSuperfund LDR Guide 5 - Determining When Land Disposal Restictions

(LDRs) Are Applicable to CERCLA Response Actionsrdquo Environmental Protection Agency - Office of Solid Waste and Emergency Response - 93473-05FS July 1989

US EPA Region 3 Sauer Dump Site EECA 6-1 HydroGeoLogic Inc April 2009

AR103730

HGLmdashSauer Dump Revised Draft Engineering EvaluationCost AnalysismdashDundalk Baltimore County MD

US EPA Region 3 Sauer Dump Site EECA 6-2 HydroGeoLogic Inc April 2009

Federal Remediation Technology Roundtable (FRTR) 2002 ldquoRemediation Technologies Screening Matrix and Reference Guide Version 40rdquo Federal Remediation Technology Roundtable httpwwwfrtrgovmatrix2top_pagehtml

Interstate Technology amp Regulatory Council (ITRC) 2003 ldquoTechnical and Regulatory

Guidance for SurfactantCosolvent Flushing of DNAPL Source Zonesrdquo DNAPLs-3 Washington DC Interstate Technology amp Regulatory Council DNAPLs Team Available on the Internet at httpwwwitrcweborg

ITRC 1997 ldquoTechnical and Regulatory Guidance for Soil Washingrdquo Interstate Technology

and Regulatory Council ndash Metals in Soil Work Team December 1997 Malcolm Pirnie 2007 ldquoExtent of Contamination Study ndash Sauer Dump Site Dundalk

Baltimore County Marylandrdquo Malcolm Pirnie Inc June 2007

AR103731

APPENDICES

AR103732

APPENDIX A

HISTORIC ANALYTICAL DATA TABLES Table A1a-b ndash Surface Soil Analytical Data Table A2a-c ndash Subsurface Soil Analytical Data Table A3 ndash Sediment Analytical Data Table A4 ndash Surface Water Analytical Data Table A5 ndash Groundwater Analytical Data

AR103733

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0011 B 025 001 U 1 U 1 U 0044 B 0056 B 0036 B 0071 B 0029 B 0093 B 0007 JB 0013 B 0011 U 0018 BAcetonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UBromoform 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UBromomethaneMethyl bromide 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Un-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UCarbon Tetrachloride 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UChlorobenzene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UChloroethaneEthyl chloride 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U2-ChloroethanolEthylene chlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 001 U 50 U 50 U nr nr nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0002 JB 0011 U 0011 U 0002 JB 0015 U 0001 JB 0011 U 0011 U 0002 JBChloromethaneMethyl chloride 001 U 001 U 001 U 25 U 25 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UChloroprene nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr12-Dibromoethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDichlorodifluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr11-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U12-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U11-Dichloroethene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Ucis-12-Dichloroethene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrtrans-12-Dichloroethene 0005 U 0005 U 0005 U 5 U 5 U nr nr nr nr nr nr nr nr nr nr12-Dichloroethene (Total) nr nr nr nr nr 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U13-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 Utrans-13-Dichloropropene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg18 93 24 34 14 9 9 309 16 13 9

1 1 1 1 1 1 11 11 1 1not reported not reported not reported not reported

no no no no no no nono nono no no no noyes yesyes yes yes yes yes yes yes yes yes yesyes yes

no no nono no no nono no no no no no noyes yes yes yes yes yes yes yes yes yesyes yes yes yes

yes yes yes yes yes yes yesyes yesyes yes no no yesyes yesyes yes yes yes yes yes yes yes yes yesyes yes

BackgroundDuplicate of S-5Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilNUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS

120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

yes

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

no

161

062785

not reported1

yes

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

yesno

yes

mgKg

Page 1 of 30

AR103734

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone 001 U 001 U 001 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U2-Hydroxypropionitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrIsopropylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrp-Isopropyl Toluene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 00073 B 00071 B 0011 B 20 9 0035 B 0086 B 003 B 0042 B 0048 B 0043 B 0025 B 0016 B 0016 B 0027 B1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 001 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrStyrene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U1112-Tetrachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UTetrachloroethene 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0002 J 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 00067 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr111-Trichloroethane 0014 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U112-Trichloroethane 0005 U 0005 U 0005 U 1 U 1 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 UTrichloroethene 0005 U 0005 U 0005 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrTrichlorofluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr nr nr123-Trichloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U 001 U 1 U 1 U nr nr nr nr nr nr nr nr nr nrVinyl Chloride 001 U 001 U 001 U 5 U 5 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0011 U 0014 U m+p-Xylenes nr nr nr nr nr nr nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 0005 U 10 U 10 U 0011 U 0012 U 0011 U 0011 U 0013 U 0015 U 0012 U 0011 U 0002 J 0014 U

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg9 30

mgKg mgKg mgKg mgKg mgKg mgKg24 34 14 9161 18 93 9 16 13 9

1 11 1 1 1 1 1 11 1 1 1not reportednot reported not reported not reported not reported

Page 2 of 30

AR103735

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 0039 J 04 J 033 J 0048 J 36 U 11 U 047 UAcenaphthylene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 016 J 038 U 36 U 11 U 047 UAcetophenone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAnthracene 22 U 22 U 22 U nr nr 0077 J 12 U 037 U 011 J 06 J 11 J 016 J 36 U 11 U 047 UAtrazine nr nr nr U U nr nr nr nr nr nr nr nr nr nrBenzaldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzo(a)Anthracene 22 U 22 U 22 U nr nr 046 2 J 012 J 081 21 36 089 038 J 029 J 047 UBenzo(a)Pyrene 22 U 22 U 22 U nr nr 053 32 J 016 J 04 18 28 061 042 J 028 J 047 UBenzo(b)fluoranthene 18 J 22 U 22 U nr nr 12 J 47 J 047 J 088 J 51 J 7 J 2 J 092 J 067 J 012 JBenzo(ghi)Perylene 22 U 22 U 22 U nr nr 036 U 19 J 037 U 036 U 13 U 05 J 061 36 U 11 U 047 UBenzo(k)fluoranthene 22 U 22 U 22 U nr nr 12 J 47 J 047 J 088 J 51 J 7 J 2 J 092 J 067 J 012 JBenzylbutylphthalateButylbenzylphthalate 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 29 22 043 J 018 J 0067 J11-Biphenyl nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr4-Bromophenyl-phenylether 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UCaprolactam nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCarbazole nr nr nr nr nr 0047 J 12 U 037 U 009 J 053 J 053 J 01 J 36 U 11 U 047 U4-Chloroaniline 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Chloroethoxy)Methane 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Chloroethyl)Ether 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Chloroisopropyl)Ether 22 U 22 U 22 U nr nr nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U4-Chloro-3-Methylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U2-Chloronaphthalene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U2-Chlorophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U4-Chlorophenyl-phenylether 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UChrysene 12 J 22 U 22 U nr nr 054 22 J 016 J 057 19 31 066 039 J 026 J 047 UDibenzo(ah)Anthracene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 026 J 038 U 36 U 11 U 047 UDibenzofuran 22 U 22 U 22 U nr nr 036 U 12 U 037 U 0044 J 031 J 031 J 0074 J 36 U 11 U 047 U12-Dichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U13-Dichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U14-Dichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U33-Dichlorobenzidine 46 U 44 U 46 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U24-Dichlorophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDiethylphthalate 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U24-Dimethylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDimethyl Phthalate 22 U 22 U 22 U nr nr 0048 J 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDi-n-Butylphthalate 78 19 JB 18 JB nr nr 0045 JB 12 U 004 JB 036 U 13 U 022 JB 012 JB 071 JB 11 U 047 U46-Dinitro-2-Methylphenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U24-Dinitrophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U24-Dinitrotoluene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U26-Dinitrotoluene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UDi-n-Octyl Phthalate 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 Ubis(2-Ethylhexyl)Phthalate 22 15 J 34 nr nr 045 B 12 U 022 JB 071 B 044 JB 16 B 13 B 29 JB 13 B 0082 JBFluoranthene 15 J 22 U 25 nr nr 093 2 J 031 J 091 71 75 2 07 J 055 J 0063 JFluorene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 0061 J 06 J 047 J 0086 J 36 U 11 U 047 UHexachlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UHexachlorobutadiene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UHexachlorocyclopentadiene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UHexachloroethane 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UIndeno(123-cd)Pyrene 22 U 22 U 22 U nr nr 036 U 19 J 037 U 036 U 13 U 02 J 038 U 36 U 11 U 047 UIsophorone 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 016 J 038 U 36 U 11 U 047 U2-Methylnaphthalene 22 U 22 U 22 U nr nr 0041 J 12 U 037 U 0046 J 13 U 017 J 0098 J 24 J 11 U 047 U2-Methylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U4-Methylphenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 014 J 15 U 038 U 36 U 11 U 047 UMethylMercury nr nr nr nr nr nr U nr U nr U nr U nr U nr U nr U nr U nr U nr UNaphthalene 22 U 22 U 22 U nr nr 004 J 12 U 037 U 0062 J 014 J 027 J 012 J 20 015 J 047 U2-Nitroaniline 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U3-Nitroaniline 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U4-Nitroaniline 112 U 112 U 114 U nr nr 0088 J 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 UNitrobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U2-Nitrophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U4-Nitrophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 UN-Nitroso-Di-n-Propylamine 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UN-Nitrosodiphenylamine 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U22-Oxybis(1-Chloropropane) nr nr nr nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 UPentachlorophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 UPhenanthrene 063 J 22 U 13 J nr nr 026 J 12 U 0086 J 042 56 46 072 047 J 026 J 047 UPhenol 22 U 22 U 22 U nr nr 0092 J 12 U 0085 J 0046 J 13 U 15 U 0083 J 21 018 J 0082 JPyrene 14 J 13 J 25 nr nr 084 25 J 025 J 1 45 5 15 065 J 043 J 0051 J124-Trichlorobenzene 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U245-Trichlorophenol 112 U 112 U 114 U nr nr 087 U 30 U 091 U 087 U 31 U 36 U 092 U 87 U 26 U 11 U246-Trichlorophenol 22 U 22 U 22 U nr nr 036 U 12 U 037 U 036 U 13 U 15 U 038 U 36 U 11 U 047 U

mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg34 14 9 9 309 16 13 9 24

1 1 3 3 3 11 105 5 1 30

mgKg

5Not reported Not Reported Not Reported

mgKg mgKg

Page 3 of 30

AR103736

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 15590 13830 10510 nr nr 6840 4820 4670 7220 7360 9850 16400 1460 8820 8850 Antimony 31 U 29 U 31 U 21 5 U 36 U 36 U 37 U 4 U 35 U 88 B 217 563 35 U 41 UArsenic 14 J 243 J 238 J 133 179 68 2 B 22 B 23 B 39 156 296 23 B 28 33 Barium 237 176 215 nr nr 758 644 283 B 625 425 B 271 728 358 B 618 709 Beryllium 3 U 3 U 3 U 05 U 05 U 059 B 03 B 053 B 038 B 045 B 069 B 059 B 013 B 058 B 058 BCadmium 277 3 U 346 473 539 072 B 021 U 022 U 024 U 035 U 41 186 11 B 036 U 042 UCalcium 89630 106980 67360 nr nr 52400 46900 14300 59200 61100 30500 26500 6660 20200 1860 Chromium 346 163 356 130 107 361 241 109 27 392 134 645 242 313 143 Chromium III nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 24 U 27 U 25 U nr nr 39 B 32 B 24 B 62 B 78 B 147 196 85 B 65 B 135 BCopper 381 323 377 756 573 429 335 168 279 275 1540 1070 928 362 168 Iron 31440 15280 22600 nr nr 12500 8490 9260 13500 14700 59600 85600 9680 21200 9790 Lead 371 J 209 J 827 J 1489 2542 672 903 251 946 488 1170 3160 600 875 532 Magnesium 25940 20550 15590 nr nr 19800 17200 3360 10100 11800 24000 6380 2740 8610 1040 BManganese 1060 J 809 J 731 J nr nr 525 197 864 386 185 2910 1440 195 382 511 Mercury 062 03 049 77 75 027 81 031 032 006 U 31 56 16 028 009 BNickel 199 22 U 169 641 773 608 92 49 B 19 226 882 304 449 46 112 Potassium 2630 1790 J 2380 J nr nr 1020 B 855 B 482 B 1140 B 1210 731 B 572 B 166 B 693 B 405 BSelenium 101 3 U 3 U 42 016 21 095 B 082 B 15 17 8 182 21 097 U 14 Silver 5 U 6 U 5 U 169 145 17 B 054 U 054 U 059 U 14 B 86 116 17 B 17 B 19 BSodium 693 J 738 J 594 J nr nr 187 B 135 B 694 B 297 B 198 B 327 B 338 B 704 B 130 B 509 BThallium 6 U 5 U 6 U 12 5 U 026 U 029 U 028 U 032 U 092 U 092 U 093 U 095 U 095 U 1 UTin 19 U 22 U 20 U nr nr nr nr nr nr nr nr nr nr nr nrVanadium 24 U 27 U 25 U nr nr 779 237 197 486 394 119 551 73 B 318 247 Zinc 543 497 540 2920 2609 109 163 48 263 109 1910 4790 420 108 755 Cyanide 12 U 13 U 12 U nr nr 055 U 054 U 054 U 061 U 061 U 061 U 065 U 065 U 062 U 071 U

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg131 229 244 29217 197 117 114 195 224 247 232

1 1Not Reported 1 11 1 1 1 1 1

mgKg

Not Reported129 178 12

Not Reported

Page 4 of 30

AR103737

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC BackgroundDuplicate of S-5

Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid SolidSurficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil

NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUSHNUS HNUS HNUS HNUS120892 120892 120892 120892 120892 120892 120892120892 120892062785 062785 102490 102490 120892

MCGX39 MCGX40 MCGX41MCGX33 MCGX34 MCGX35 MCGX36MCB983 MCB984 MCGX32 MCGX37 MCGX38CA 888 CA 889 CHH42 CHH43CHH38 CHH39 CHH40 CHH41CHH34 CHH35 CHH36 CHH37

S-7 Burn Area Surface S-8 Drum Area SurfaceS-09 S-10 S-11 S-12S-7 S-8 S-1 S-2 S-01 S-02 S-05 S-06

Sauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

MCB981

Sauer DumpS-07 S-08

S-5 Drum Area SurfaceCA 886

062785

Sauer Dump Sauer DumpSauer DumpS-5

Sauer Dump

NUSSurficial Soil

Solid

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 0039 U 0041 U 0036 U U U 00018 U 00037 0002 U 00019 U 00032 0026 U 02 U 00037 U 001 00024 Ualpha-BHC 0039 U 0041 U 0036 U U U 00018 U 000012 J 0002 U 00019 U 000024 J 000068 J 02 U 00037 U 00019 U 00024 Ubeta-BHC 0039 U 0041 U 0036 U U U 00018 U 0002 U 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 000051 Jdelta-BHC 0039 U 0041 U 0036 U U U 00018 U 0002 U 000022 J 00019 U 00022 U 0026 U 02 U 00037 U 0002 00024 Ugamma-BHC (Lindane) 0039 U 0041 U 0036 U U U 00018 U 0002 U 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 00024 Ualpha-Chlordane nr nr nr U U 00018 U 0002 U 0003 00019 U 0017 0026 U 02 U 00037 U 0026 000045 Jgamma-Chlordane nr nr nr U U 00018 U 00042 00027 00019 U 003 0026 U 02 U 00011 J 005 00024 UChlordane total 0385 U 0405 U 036 U U U nr nr nr nr nr nr nr nr nr nr44-DDD 0077 U 0081 U 0072 U U U 00036 U 00039 U 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 00047 U44-DDE 0077 U 0081 U 0072 U U U 00036 U 00039 U 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 00047 U44-DDT 0077 U 0081 U 0072 U U U 00036 U 00039 U 00038 U 00036 U 00028 J 005 U 038 U 00073 U 00036 U 000033 JDieldrin 0077 U 0081 U 0072 U U U 00036 U 00088 00038 U 00036 U 0017 005 U 038 U 00073 U 00036 U 000023 JEndosulfan I 0039 U 0041 U 0036 U U U 00018 U 0002 U 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 00024 UEndosulfan II 0077 U 0081 U 0072 U U U 00036 U 000033 J 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 001 Endosulfan sulfate 0077 U 0081 U 0072 U U U 00036 U 000049 J 0000096 J 00036 U 000046 J 0019 J 02 J 00073 U 00036 U 00047 UEndrin 0077 U 0081 U 0072 U U U 00036 U 00083 00038 U 00036 U 001 005 U 038 U 00073 U 00036 U 00011 JEndrin aldehyde 0077 U 0081 U 0072 U U U 00036 U 00039 U 000024 J 00036 U 00043 U 005 U 038 U 00073 U 00024 J 00047 UEndrin ketone 0077 U 0081 U 0072 U U U 000009 J 00042 J 00038 U 00036 U 00043 U 005 U 038 U 00073 U 00036 U 00047 UHeptachlor 0039 U 0041 U 0036 U U U 00018 U 000069 JB 0002 U 00019 U 00022 U 0026 U 02 U 00037 U 00019 U 00024 UHeptachlor epoxide 0039 U 0041 U 0244 N U U 00018 U 0002 U 0002 U 00019 U 000022 J 0026 U 02 U 00037 U 00019 U 00024 UMethoxychlor 0077 U 0081 U 0072 U U U 0018 U 002 U 002 U 0019 U 0023 B 0035 JB 2 U 00054 JB 00013 JB 000071 JBToxaphene 077 U 081 U 072 U U U 018 U 02 U 02 U 019 U 022 U 26 U 20 U 037 U 019 U 024 UAroclor-1016 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1221 0385 U 0405 U 036 U U U 0073 U 0078 U 0078 U 0073 U 0088 U 1 U 77 U 015 U 0074 U 0094 UAroclor-1232 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1242 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1248 0385 U 0405 U 036 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UAroclor-1254 4557 3305 6565 62 110 016 0039 U 012 032 0043 U 29 150 11 048 0047 UAroclor-1260 077 U 081 U 072 U U U 0036 U 0039 U 0038 U 0036 U 0043 U 05 U 38 U 0073 U 0036 U 0047 UTotal PCBs 4557 3305 6565 62 110 016 012 032 29 150 11 048

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

Incomplete lab report No Other Pesticides or PCBs detected

Incomplete lab report No Other Pesticides or PCBs detected

mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg13 9 24 34Not Reported Not Reported 9 16 14 9 9 301 1 1 10 1 and 5 1100 210 10 1 1

Not Reported Not Reported Not Reported10

Not ReportedmgKg

Page 5 of 30

AR103738

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr 04198 U 04287 03753 U 03703 U 0363 U 03745 U 03583 U 04443 U 03592 nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 02793 02106 02093 01892 01624 01727 00878 01865 0141 nr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgNA NANA NA NA NA NA NA NA

Not Reported Not Reported Not Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot ReportedEPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260

no no no no no no no nono nono no nono noyes yes yes yes yesPCBs PCBs PCBs PCBs yes yes yes yesPCBs PCBs

no no no no no no no no no nono no no no noyes yesyes yes yes yes yes yes yesyes yesyes yes yes yes

no no yes yes yes yes yes yesyes yesno no yesno noyes yes yes yes yesno no no no yes yes yes yesno no

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Page 6 of 30

AR103739

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl Chloride m+p-Xyleneso-XyleneXylenes (Total)

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 00933 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 00912 00832 00751 U 00741 U 00726 U 00754 00717 U 00988 00705 nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 02354 01987 01828 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 01538 01584 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0084 U 00721 U 00751 U 00741 U 00726 U 00749 U 00717 U 00889 U 00678 Unr nr nr nr nr nr 02347 nr nr nr nr nr nr nr nrnr nr nr nr nr nr 02914 nr nr nr nr nr nr nr nrnr nr nr nr nr nr 05261 01442 U 01501 U 01481 U 01452 U 01498 U 01433 U 01777 U 01355 U

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded

mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKgNA NANA NA NA NANA NA NA

Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported Not Reported Not Reported Not ReportedEPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260

Page 7 of 30

AR103740

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U J Jnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nrnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U J U Jnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr J J J U B B B B Bnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U J J U Unr nr nr nr nr nr U U U U U U U Jnr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nrnr nr nr nr nr nr U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr 8039 E 871 Enr nr nr nr nr nr U U U U U U U U Unr nr nr nr nr nr U U U U J J J U Jnr nr nr nr nr nr U U U U U U U U

Incomplete lab report No SVOCs detected

Incomplete lab report No other SVOCs detected

Incomplete lab report No other SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

mgKgmgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgNot reportedNA NA NA Not Reported Not reported Not reported Not reportedNA

EPA 625 EPA 625EPA 625 EPA 625 EPA 625EPA 625 EPA 625 EPA 625 EPA 625

Page 8 of 30

AR103741

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag3475 8270 6484 6817 8117 14611 10768 8812 9560 4347 9785 63780 8393 10860 13859

10 U 10 U 10 U 10 U 10 U 10 U 566 25 U 12 336 25 U 25 U 25 U 25 U 25 U137 162 122 262 54 05 U 141 129 331 13 957 679 222 3055 3143 103 199 1225 435 577 1132 166 100 396 191 177 514 348 571 848 025 U 047 025 028 238 112 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U178 18 104 735 469 284 228 223 504 206 785 5 U 5 U 5 U 5 U

27585 26998 37572 14720 22380 100550 11935 15952 12179 42072 13471 17532 48377 44415 19243 468 108 54 23 291 124 110 130 378 475 742 192 244 35 177 nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr nr nr nrnr U nr U nr U nr U nr U nr U nr nr nr nr nr nr nr nr nr77 72 5 41 29 24 124 135 229 157 552 497 5 U 5 U 62 216 449 255 97 1236 217 394 270 3303 445 241 25 174 355 33

8047 67528 18682 31513 8983 2677 83701 95937 191564 59983 23296 12549 9139 12305 14426 504 1274 544 432 365 76 1409 5944 2232 1407 529 341 449 30 479

7829 8548 9922 4548 3700 3558 6192 4581 5246 960 3000 7343 9079 8993 8959 758 906 619 545 220 960 873 385 2183 872 415 842 137 344 557 169 242 151 149 032 029 333 098 561 619 266 06 U 017 011 01 U472 685 368 12 196 9 87 120 285 303 34 101 126 102 103 838 556 706 651 638 1842 738 634 565 905 780 863 1606 699 2101 125 U 125 U 125 U 125 U 125 U 125 U 14 16 926 895 167 125 U 125 U 125 U 125 U13 134 14 17 11 05 U 25 U 25 U 389 25 U 25 U 25 U 25 U 25 U 25 U143 206 134 102 853 556 986 2262 2557 7875 587 267 224 1186 687 10 U 10 U 10 U 10 U 10 U 10 U 125 U 125 U 125 U 125 U 125 U 125 U 125 U 125 U 125 Unr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U nr U

212 107 142 17 146 36 316 24 357 31 26 249 26 262 22 113 1462 1160 1169 332 198 1525 4050 4775 1499 624 526 539 575 673 nr U nr U nr U nr U nr U nr U 0179 U 019 U 0454 0194 U 0333 019 U 0191 U 0209 U 0236 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

1 11 1

mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKgNot ReportedNot Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported

Not Reported Not Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot Reported Not Reported

Page 9 of 30

AR103742

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

BackgroundSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilMDE MDEMDE MDE MDE MDE MDE MDE MDEMDE MDEMDE MDE MDE MDE

040496 040496 092999 092999 092999 092999 092999 092999092999 092999040496 040496 092999040496 040496A900942 A900943 A900946 A900947 A900948A900940 A900941 A900944 A900945

761261 761262 761263 M700305 M700308 M700309 M700310 M700311 E400069 E400070761258 761259 761260 M700306 M700307A900922 A900923A900918940 A900919 A900920 A900921 A900924 A900925 A900926A964249 A964250 A964251 A964252 A964253 A964254

S-5 S-6 S-07 S-08 S-09S-05 S-06S-1 S-2 S-3 S-4 S-03 S-04S-01 S-02Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 Unr nr nr nr nr nr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U

025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 Unr U nr U nr U nr U nr U nr U nr U nr U nr U

44 6 6 4 2 02 2594 8478 E 681 E 166 J 132 025 U 025 U 07 025 U025 U 025 U 025 U 64 J 025 U 025 U 025 U 025 U 025 U

44 6 6 4 2 02 2594 8478 681 23 132 07

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKgNot ReportedNot Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot Reported Not Reported

Not Reported Not Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedNot Reported Not ReportedEPA 8081EPA 8081 EPA 8081 EPA 8081 EPA 8081 EPA 8081 EPA 8081EPA 8081 EPA 8081

Page 10 of 30

AR103743

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0007 JB 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0004 J 0003 J nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0002 J 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0004 J 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg10 13 21 2015 1752 82

1 11 1 1 1 1 1EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260

nono no no no no no no nono no no no no noyes yesyes yes yes yesyes yes yes yesyes yesyes yes yes

no no nono no no no no no no nono nono nono no no no no noMetals only Metals only yes yesyes yes yesyes yes

noyes yes yes no no no no noyes yes yes yes yes yesno noyes yes no noyes yes no noyes yesyes yes yes

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Page 11 of 30

AR103744

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl Chloride m+p-Xyleneso-XyleneXylenes (Total)

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr 0024 J nr nr nr nr nr nr nr nr

0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0006 JB 00056 U 00057 U 0002 JB 0009 JB 0002 JB 0003 JB 0002 JB 0002 JB nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0002 J 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0012 U 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr0001 J 00056 U 00057 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

nr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0011 U 0011 U 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nrnr 00056 U 00057 U nr nr nr nr nr nr nr nr nr nr nr nr

0012 U nr nr 0018 U 006 U 0013 U 0011 U 0013 U 0013 U nr nr nr nr nr nr

mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg21 2013 52 82 1715 101 11 1 11 1 1

EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260

Page 12 of 30

AR103745

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag01 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0097 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr0069 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr021 J 183 U 19 U 0098 J 18 U 04 U 04 U 0049 J 041 U nr nr nr nr nr nr048 U nr nr nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr

0066 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 183 U 19 U 057 J 038 J 014 J 015 J 019 J 019 J nr nr nr nr nr nr14 183 U 19 U 059 J 041 J 015 J 016 J 024 J 017 J nr nr nr nr nr nr15 183 U 19 U 1 064 J 015 J 017 J 023 J 018 J nr nr nr nr nr nr14 183 U 19 U 018 J 18 U 0053 J 026 J 033 J 041 U nr nr nr nr nr nr13 183 U 19 U 056 J 048 J 013 J 012 J 016 J 018 J nr nr nr nr nr nr18 183 U 19 U 069 U 18 U 04 U 012 J 025 J 069 nr nr nr nr nr nr

0056 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 J nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr012 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr

048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr15 183 U 19 U 081 057 J 015 J 018 J 021 J 02 J nr nr nr nr nr nr041 J 183 U 19 U 012 J 18 U 04 U 04 U 0057 J 041 U nr nr nr nr nr nr013 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr

048 U 376 U 379 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0033 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0048 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr034 J 183 U 19 U 069 U 18 U 04 U 04 U 01 J 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

0052 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr083 183 U 19 U 079 038 J 011 J 025 J 016 J 023 J nr nr nr nr nr nr18 183 U 19 U 088 045 J 025 J 026 J 04 J 028 J nr nr nr nr nr nr

0098 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 183 U 19 U 038 J 028 J 0089 J 02 J 024 J 0091 J nr nr nr nr nr nr

0078 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr025 J 183 U 19 U 069 U 18 U 04 U 04 U 0052 J 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nrnr nr nr nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr02 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr048 U nr nr 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr095 183 U 19 U 028 J 18 U 013 J 014 J 021 J 011 J nr nr nr nr nr nr014 J 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr21 183 U 19 U 11 052 J 026 J 031 J 05 039 J nr nr nr nr nr nrnr U 183 U 19 U nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr12 U 889 U 92 U 17 U 46 U 1 U 1 U 11 U 1 U nr nr nr nr nr nr048 U 183 U 19 U 069 U 18 U 04 U 04 U 042 U 041 U nr nr nr nr nr nr

mgKg mgKg mgKg mgKg mgKgmgKgmgKg mgKg mgKg82 1731 10 17 21 205213

1 1 1 1 1 15 5EPA 8070 EPA 8070 EPA 8070EPA 8070EPA 8270 EPA 8270 EPA 8070 EPA 8070

Page 13 of 30

AR103746

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag10800 nr nr 9300 9400 7200 20000 8200 9800 nr nr nr nr nr nr

253 J 45 U 47 U 34 60 U 10 U 21 10 U 10 U nr nr nr nr nr nr301 82 127 56 20 73 65 72 82 nr nr nr nr nr nr462 nr nr 160 120 70 240 90 104 nr nr nr nr nr nr043 J 045 U 047 U 093 15 15 26 16 093 nr nr nr nr nr nr138 063 084 27 36 13 2 19 15 nr nr nr nr nr nr

24900 nr nr 9500 6100 4900 56000 32000 12000 nr nr nr nr nr nr227 J 49 72 120 110 48 40 34 52 nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

265 nr nr 82 14 44 47 48 44 nr nr nr nr nr nr1510 J 45 79 290 150 71 31 120 61 nr nr nr nr nr nr

171000 nr nr 47000 22000 20000 15000 25000 20000 nr nr nr nr nr nr4520 76 181 340 150 120 730 160 130 nr nr nr nr nr nr5640 J nr nr 5800 5100 1600 17000 6300 3500 nr nr nr nr nr nr2330 nr nr 840 1600 270 1200 440 420 nr nr nr nr nr nr

54 021 U 021 U 015 U 21 03 017 051 12 nr nr nr nr nr nr196 J 42 5 51 72 23 27 65 39 nr nr nr nr nr nr466 J nr nr 960 2800 U 880 2100 940 1000 nr nr nr nr nr nr95 45 U 47 U 22 53 15 094 067 17 nr nr nr nr nr nr24 09 U 093 U 67 6 U 1 U 19 1 U 1 U nr nr nr nr nr nr574 J nr nr 2200 9400 79 530 140 180 nr nr nr nr nr nr

2 U 021 U 018 U 094 34 04 U 043 U 044 U 091 nr nr nr nr nr nrnr U nr nr nr nr nr nr nr nr nr nr nr nr nr nr

435 nr nr 29 39 22 35 53 30 nr nr nr nr nr nr5300 117 267 690 380 220 230 220 280 nr nr nr nr nr nr

36 nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKgmgKgNot Reported 45 82 18 14 21 1810 14

Not Reported Not ReportedNot Reported Not Reported Not Reported Not ReportedNot ReportedVarious Various Various Various Various VariousVarious Various

Page 14 of 30

AR103747

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Dup Of SS-3 Dup Of J-13 (0-2) Dup Of I-12 (0-2)Duplicate of S-3Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSolid SolidSolid Soil Soil

Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial SoilSurficial Soil Surficial SoilENSAT ENSAT ENSAT ENSAT ENSAT ENSATMDE MDE ENSAT ENSATMDE ENSAT ENSATENSAT ENSAT

060602121201 121201 121201 060502 060502 060502 060502 060502092999 121599 121599 121201 121201 1212012061037 20610302061006 20610362061013 2061031

82073 000013 82073 000014 82073 00001582073 000011 82073 00001282073 00001099121534 99121535CTD93

1123108 1123111 1123112 11231131123109 1123110J-13 (0-2) S-1 S-2 D-1 (0-2)SS-3 SS-4 I-12 (0-2) I-13 (0-2)SS-1 SS-2 SS-5 SS-AS-10 S-13 S-14

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag039 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr

0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 0022 P 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr

nr nr nr nr U nr U nr U nr U nr U nr U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 023 PD 019 P 0004 U 0047 P 027 D 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0018 J 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr011 J 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr

0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr0048 U 00074 U 00077 U 0034 U 0095 P 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr016 J 00074 U 00077 U 0034 U 0018 U 0004 U 0004 U 00042 U 00041 U nr nr nr nr nr nr

0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0025 U 00037 U 00038 U 0018 U 00094 U 0002 U 0002 U 00022 U 00021 U nr nr nr nr nr nr0066 J 0037 U 0038 U 018 U 0094 U 002 U 002 U 0022 U 0021 U nr nr nr nr nr nr

25 U 0074 U 0077 U 18 U 094 U 02 U 02 U 022 U 021 U nr nr nr nr nr nr048 U 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 7 U 7 U 350 U 25 D097 U 0037 U 0038 U 07 U 037 U 0081 U 0081 U 0085 U 0084 U 350 U 180 U 14 U 14 U 700 U 35 U048 U 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 7 U 7 U 350 U 18 U048 U 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 7 U 7 U 350 U 18 U63 J 0037 U 0038 U 034 U 018 U 004 U 004 U 0042 U 0041 U 175 U 88 U 71 U 7 U 350 U 18 U32 J 0074 U 0077 U 19 D 018 U 48 D 004 U 0042 U 62 D 4600 D 1300 DB 105 D 97 DB 4600 DB 76 DB64 J 0074 U 0077 U 068 PD 018 U 004 U 014 085 0041 U 175 U 88 U 7 U 7 U 350 U 18 U

447 258 48 014 085 62 4600 1300 105 97 4600 76

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKgmgKg mgKg mgKg mgKg mgKg5 5 5 510 13 52 8231 21 20 5 517 17

1 and 5 1 and 10 5000 2500 200 200 10000 501 1 5 1 1 and 5 1 10 and 100EPA 80818082 EPA 80818082 8082 8082 8082 8082 8082 8082EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082EPA 80818082 EPA 80818082

Page 15 of 30

AR103748

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

G-0 0-2

012304

Sauer Dump Sauer DumpH-16 0-2

ENSAT012204

F-0 0-2Sauer Dump Sauer Dump

I-16 0-2

012704 012704ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid

Dup Of G-11 (0-2)Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial SoilENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT

061102 061102060702 061002 061102 061102 061102 061102060602 060602 0607022061027 2061033 2061018 20610202061017 2061036 2061012 2061019 2061021 2061034 2061022

D-4 (0-2) E-8II (0-2) H-10 (0-2) H-8 (0-2)F-7 (0-2) G-6 (0-2)G-11 (0-2) S-3 I-8 (0-2)F-1 (0-2) J-11 (0-2)Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr 2200 1200 1500 1900nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr

mgkgmgkg mgkgmgkg

EPA 7420 EPA 7420 EPA 7420EPA 7420

Page 19 of 30

AR103749

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

G-0 0-2

012304

Sauer Dump Sauer DumpH-16 0-2

ENSAT012204

F-0 0-2Sauer Dump Sauer Dump

I-16 0-2

012704 012704ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid

Dup Of G-11 (0-2)Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial SoilENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT

061102 061102060702 061002 061102 061102 061102 061102060602 060602 0607022061027 2061033 2061018 20610202061017 2061036 2061012 2061019 2061021 2061034 2061022

D-4 (0-2) E-8II (0-2) H-10 (0-2) H-8 (0-2)F-7 (0-2) G-6 (0-2)G-11 (0-2) S-3 I-8 (0-2)F-1 (0-2) J-11 (0-2)Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr51 D 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U18 U 280 U 18 U 18 U 35 U 70 U 70 U 14 U 70 U 350 U 70 U088 U 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U088 U 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U088 U 140 U 088 U 088 U 18 U 35 U 35 U 7 U 35 U 180 U 35 U24 DB 1400 DB 32 D 35 DB 330 D 420 D 410 D 97 D 390 D 3800 DB 580 D088 U 140 U 27 D 51 18 U 35 U 35 U 7 U 35 U 180 U 35 U75 1400 59 86 330 420 410 97 390 3800 580

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg mgKg6 5 5 5 5 5 55 55 5

25 4000 1000 500025 25 500 1000 1000 200 100080828082 8082 8082 8082 8082 8082 8082 80828082 8082

Page 20 of 30

AR103750

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpS3 (2004) G-075 0-2

Sauer Dump Sauer DumpK-15 0-2 K-16 0-2Z-05 0-2 I5-145 0-2 K-12 0-2

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

K-16 0-2 dup K-15 0-2 dupS1 (2004) S2 (2004)K-13 0-2 K-14 0-2

K-14 0-2 dup I5-70 0-2I5-07 0-2 J-115 0-2 K-08 0-2 K-09 0-2

J0 115 0-2

012704 012804 012804 012804 012804012804 012804 012804 012804 012904 012904012804 012904 012904 012904ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid

Duplicate Duplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nr

10000 5600 1900 3800 3200 3400 3600nr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nrnr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkg mgkg mgkg mgkgmgkg mgkgmgkg

EPA 7420 EPA 7420 EPA 7420 EPA 7420EPA 7420 EPA 7420EPA 7420

Page 24 of 30

AR103751

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpS3 (2004) G-075 0-2

Sauer Dump Sauer DumpK-15 0-2 K-16 0-2Z-05 0-2 I5-145 0-2 K-12 0-2

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

K-16 0-2 dup K-15 0-2 dupS1 (2004) S2 (2004)K-13 0-2 K-14 0-2

K-14 0-2 dup I5-70 0-2I5-07 0-2 J-115 0-2 K-08 0-2 K-09 0-2

J0 115 0-2

012704 012804 012804 012804 012804012804 012804 012804 012804 012904 012904012804 012904 012904 012904ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid Solid Solid

Duplicate Duplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U85 U 84 U 39 U 83 U 82 U 85 U 76 U 80 U 12 U 31 U 170 U 120 U42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U42 U 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U60 620 270 580 500 490 540 470 92 210 970 43084 41 U 19 U 41 U 40 U 42 U 37 U 39 U 058 U 15 U 86 U 58 U

684 620 270 580 500 490 540 470 92 210 970 430

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkgmgkg mgkg mgkg21 12 16 15 1419 2321 20 13 19 18

25 2000100 1000 500 1000 1 1001000 1000 1000 1000EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082

Page 25 of 30

AR103752

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer DumpSauer Dump Sauer DumpS4 (2004)

Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpS6 (2004)K-11 0-2 K-11 0-2 G-065 0-2 TP 3B lt1D5-07 0-2 F5-07 0-2K-10 0-2 K-10 0-2

J-115 0-2 dup G-075 0-2 dup

012904 012904 013004 013004 013004 020204012904 012904 012904 012904ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid SolidSolid Solid Solid Solid Solid SolidSolid Solid

DuplicateDuplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr 6600nr nr nr nr 28 Unr nr nr nr 12nr nr nr nr 99nr nr nr nr 28 Unr nr nr nr 53nr nr nr nr 55000nr nr nr nr 74nr nr nr nr nrnr nr nr nr nrnr nr nr nr 68nr nr nr nr 420nr nr nr nr 53000

1600 1600 540 540 400nr nr nr nr 6900nr nr nr nr 410nr nr nr nr 064nr nr nr nr 51nr nr nr nr 570 Unr nr nr nr 68nr nr nr nr 28 Unr nr nr nr 570 Unr nr nr nr 23 Unr nr nr nr nrnr nr nr nr 25nr nr nr nr 1500nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkgmgkg mgkg mgkg mgkg

EPA 7420 EPA 7420 EPA 6020EPA 7420 EPA 7420

Page 29 of 30

AR103753

Table A1aSurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer DumpS4 (2004)

Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpS6 (2004)K-11 0-2 K-11 0-2 G-065 0-2 TP 3B lt1D5-07 0-2 F5-07 0-2K-10 0-2 K-10 0-2

J-115 0-2 dup G-075 0-2 dup

012904 012904 013004 013004 013004 020204012904 012904 012904 012904ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSurficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid SolidSolid Solid Solid Solid Solid SolidSolid Solid

DuplicateDuplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U62 U 17 U 180 U 81 U 13 U 24 U 25 U 057 U31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U31 U 84 U 88 U 4 U 64 U 12 U 12 U 057 U270 150 1500 64 64 160 180 1231 U 84 U 88 U 4 14 12 U 12 U 057 U

270 150 1500 68 78 160 180 12

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg25 17 2019 23 1621

2000 100 2050 200 10 20EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082

Page 30 of 30

AR103754

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SolidSurface Soil

Malcolm Pirnie010807

C7A110281001DG-SS01-0

Sauer DumpL-09 0-2

Sauer Dump Sauer DumpL-07 0-2 L-08 0-2

L-9 0-2 L-09 0-2 dup

Sauer DumpY-055 0-2

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpK-17 0-2 L-10 0-2 L-11 0-2

Sauer Dump Sauer Dump Sauer Dump

020205ENSAT

Sauer Dump Sauer DumpL-12 0-2 L-13 0-2 L-14 0-2 L-15 0-2

Sauer Dump Sauer DumpL-17 0-2

Surficial SoilSolid

M-08 0-2S-5-2005L-16 0-2

020705 020705 020705 020705020405 020705 020705 020705 020705 020805 020805 020905 020905ENSAT ENSAT

030905ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilENSAT ENSATENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid

Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid

Duplicate

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result FlagAluminum nrAntimony nrArsenic nrBarium nrBeryllium nrCadmium nrCalcium nrChromium nrChromium III nrChromium VI nrCobalt nrCopper nrIron nrLead 732Magnesium nrManganese nrMercury nrNickel nrPotassium nrSelenium nrSilver nrSodium nrThallium nrTin nrVanadium nrZinc nrCyanide nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

mgkgnot reported

1SW846 6010B

Page 4 of 15

AR103755

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SolidSurface Soil

Malcolm Pirnie010807

C7A110281001DG-SS01-0

Sauer DumpL-09 0-2

Sauer Dump Sauer DumpL-07 0-2 L-08 0-2

L-9 0-2 L-09 0-2 dup

Sauer DumpY-055 0-2

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpK-17 0-2 L-10 0-2 L-11 0-2

Sauer Dump Sauer Dump Sauer Dump

020205ENSAT

Sauer Dump Sauer DumpL-12 0-2 L-13 0-2 L-14 0-2 L-15 0-2

Sauer Dump Sauer DumpL-17 0-2

Surficial SoilSolid

M-08 0-2S-5-2005L-16 0-2

020705 020705 020705 020705020405 020705 020705 020705 020705 020805 020805 020905 020905ENSAT ENSAT

030905ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial SoilENSAT ENSATENSAT ENSAT ENSAT

Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolid Solid

Surficial SoilSolid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid

Duplicate

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrbeta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrdelta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-BHC (Lindane) nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChlordane total nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDD nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDE nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDT nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDieldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan I nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan II nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan sulfate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin aldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin ketone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor epoxide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethoxychlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToxaphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAroclor-1016 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1221 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1232 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1242 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 05 038 013 U 57 U 041 U 0041 UAroclor-1248 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 0083 U 0085 U 013 U 57 U 041 U 0041 UAroclor-1254 23 29 1 U 12 U 064 U 20 084 13 37 18 U 096 049 036 88 041 U 1Aroclor-1260 15 U 15 U 1 U 12 U 064 U 072 U 037 U 68 U 23 U 18 U 04 031 029 21 041 U 062Total PCBs 23 29 ND ND ND 20 084 13 37 ND 186 118 065 109 ND 162

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

mgkgnot reported

1SW846 8082EPA 8082

mgkg18

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 80821 1 1

EPA 8082 EPA 8082100

EPA 8082 EPA 8082

18 77 80 62 86 6066 34 64 47mgkg mgkg mgkg mgkgmgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg

41 41mgkg mgkg

61 75

Page 5 of 15

AR103756

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid SolidSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie010807 010807 010807 010807 010807 010807 010807010807 010807 010807 010807 010807 010807 010807010807 010807

C7A110281009 C7A110281010 C7A130135004 C7A110281011 C7A130135005 C7A130135006 C7A130135007C7A130135001 C7A110281002 C7A110281003 C7A110281005 C7A110281006 C7A130135003 C7A110281007C7A130135002 C7A110281004DG-SS17-0DG-SS09-0 DG-SS10-0 DG-SS11-0 DG-SS12-0 DG-SS13-0 DG-SS14-0 DG-SS15-0 DG-SS16-0DG-SS05-0 DG-SS06-0 DG-SS07-0 DG-SS08-0DG-SS02-0 DG-SS03-0 DG-SS04-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

260 J 661 321 269 J 295 153 269 116 J 699 556 106 647 J 558 170 J 440 J 198 Jnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkgnot reported not reported not reported not reported not reported not reported not reportednot reported not reported not reported not reported not reported not reported not reportednot reported not reported

1 1 11 1 1 1 1 1 1 11 1 1 1 5SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B

Page 9 of 15

AR103757

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid Solid Solid Solid SolidSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie010807 010807 010807 010807 010807 010807 010807010807 010807 010807 010807 010807 010807 010807010807 010807

C7A110281009 C7A110281010 C7A130135004 C7A110281011 C7A130135005 C7A130135006 C7A130135007C7A130135001 C7A110281002 C7A110281003 C7A110281005 C7A110281006 C7A130135003 C7A110281007C7A130135002 C7A110281004DG-SS17-0DG-SS09-0 DG-SS10-0 DG-SS11-0 DG-SS12-0 DG-SS13-0 DG-SS14-0 DG-SS15-0 DG-SS16-0DG-SS05-0 DG-SS06-0 DG-SS07-0 DG-SS08-0DG-SS02-0 DG-SS03-0 DG-SS04-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 0097 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U0041 U 041 U 0039 U 0043 U 0038 U 0044 U 005 U 0052 U 0047 U 0043 U 0042 U 0045 U 0044 U 0046 U 015 U 0055 U059 77 14 0043 U 062 072 065 0052 U 0012 J 00068 J 012 0045 U 0084 0046 U 14 0055 U074 041 U 072 12 038 036 037 028 0019 J 00083 J 022 0085 0054 042 26 049133 77 212 12 1 108 1117 028 0031 00151 034 0085 0138 042 40 049

mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkgnot reported not reported not reportednot reported not reported not reported not reported not reported not reported not reported not reportednot reported not reported not reported not reported not reported

1 1 1 1 1 3 11 10 1 1 1 1 11 1SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

Page 10 of 15

AR103758

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid SolidSolid SolidSolid Solid Solid SolidSolid Solid SolidSolid SolidSolid SolidSurface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie010807 010807 010807 010807010807 010807010807 010807 010807 010807 010807 010807 010807 010807010807

C7A240133004 C7A240133006 C7A250145001 C7A250145002C7A240133007 C7A240133008C7A130135010 C7A130135011 C7A130135012 C7A130135013 C7A130135014 C7A240133001 C7A240133002 C7A240133003C7A130135008DG-SS27-0 DG-SS28-0DG-SS21-0 DG-SS22-0 DG-SS23-0 DG-SS24-0 DG-SS25-0 DG-SS26-0DG-SS18-0 DG-SS29-0 DG-SS30-0 DG-SS31-0 DG-SS32-0DG-SS19-0 DG-SS20-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

363 J 114 J 130 J 324 J 140 J 205 J 2720 415 188 586 242 281 221 137 804nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkgmgkg mgkgnot reported not reportednot reported not reported not reported not reported not reported not reported not reported not reportednot reported not reportednot reported not reportednot reported

1 11 11 1 1 51 1 11 11 1SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B

Page 14 of 15

AR103759

Table A1bSurface Soil Analytical Results - 2005 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid SolidSolid SolidSolid Solid Solid SolidSolid Solid SolidSolid SolidSolid SolidSurface Soil Surface Soil Surface Soil Surface SoilSurface Soil Surface SoilSurface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface Soil Surface SoilSurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie010807 010807 010807 010807010807 010807010807 010807 010807 010807 010807 010807 010807 010807010807

C7A240133004 C7A240133006 C7A250145001 C7A250145002C7A240133007 C7A240133008C7A130135010 C7A130135011 C7A130135012 C7A130135013 C7A130135014 C7A240133001 C7A240133002 C7A240133003C7A130135008DG-SS27-0 DG-SS28-0DG-SS21-0 DG-SS22-0 DG-SS23-0 DG-SS24-0 DG-SS25-0 DG-SS26-0DG-SS18-0 DG-SS29-0 DG-SS30-0 DG-SS31-0 DG-SS32-0DG-SS19-0 DG-SS20-0

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U0049 U 0037 U 0043 U 0056 U 0059 U 0053 U 48 U 0058 U 0052 U 0037 U 0038 U 0046 U 0041 U 0042 U 0044 U091 0037 U 0043 U 0056 U 0059 U 0051 J 48 0091 0052 U 0037 U 014 0046 U 0041 U 0042 U 0044 U15 0041 0036 J 026 014 012 48 U 0058 U 0052 U 0037 UJ 0038 U 0015 J 0041 U 0028 J 0037 J

241 0041 0036 026 014 0171 48 0091 0052 0037 014 0015 0041 0028 0037

mgkg mgkgmgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkgmgkgnot reported not reportednot reported not reportednot reported not reported not reported not reportednot reported not reported not reportednot reported not reportednot reported not reported

1 1 1 11 11 1 1 1 1 100 1 11SW846 8082 SW846 8082SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082SW846 8082 SW846 8082

Page 15 of 15

AR103760

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0012 B 0045 B 05006 U 0341 U 0058 0048 0025 0019 U 0013 U 0054 017 006 0033 0024Acetonitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0002 J 0014 U 0006 J 0003 JBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr 082 J nrBenzyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nr nr nr nr nr nrBromobenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UBromoform 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UBromomethaneMethyl bromide 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 02228 01452 0014 U 0012 U 0007 J 0019 U 0013 U 0014 0066 0021 0011 J 0006 Jn-Butylbenzene nr nr 01001 U 00682 U 0012 00061 U nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr 0065 J nr nr nrCarbon Disulfide 0005 U 0005 U nr nr 00032 J 00061 U 0014 U 0019 U 0013 U 0002 J 0031 0004 J 0009 J 0013 UCarbon Tetrachloride 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChlorobenzene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChloroethaneEthyl chloride 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0001 J 0019 U 0014 U 0013 U 0013 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 01001 U 00682 U nr nr nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChloromethaneMethyl chloride 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UChloroprene nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr 0002 J 0019 U 0013 U 0002 J 0019 U 0014 U 0013 U 0013 UCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr 12 J nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr 0085 J nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dibromoethane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U13-Dichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U14-Dichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UDichlorodifluoromethane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U11-Dichloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dichloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U11-Dichloroethene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 Ucis-12-Dichloroethene nr nr nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0001 J 0019 U 0014 U 0013 U 0013 Utrans-12-Dichloroethene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U12-Dichloroethene (Total) nr nr nr nr nr nr nr nr nr nr nr nr nr nrDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U13-Dichloropropane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr22-Dichloropropane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 Utrans-13-Dichloropropene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr 0069 J nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr 0099 J nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr 0048 J nr 037 J nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr nr

1123104

EPA 8260 EPA 8260

Subsurface SoilENSAT121201

82073 000006

yesyesyes

Solid

nonoyesno

yesyesnoyes

ENSATSubsurface Soil

Solid

yes

1123105

82073 000007

121201

noyesyesyes

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

mgKg133

1not reported

noyes

noyes

noyesyesyes

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

mgKg163

1not reported

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

yesyesyesnoyesno

EPA 8260Not Reported

NAmgKg

Holding time exceeded

MDE

noyesyesyes

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Holding time exceededmgKg

Not ReportedEPA 8260

noyes

Subsurface Soil

yesyesyesyes

yesyes

SolidSubsurface Soil

noyesnono

yesno

ENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12

yesnonononono

EPA 82601

18mgKgmgKg

291

EPA 8260

nononononoyes

Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

EPA 82601

51mgKgmgKg

291

EPA 8260

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolid

yesyesyesnoyesno

EPA 82601

22mgKgmgKg

441

EPA 8260

noyesnoyesyesyes

SolidSubsurface Soil

ENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolid

yesyesyes

yesno

no

EPA 82601 and 17

19mgKgmgKg

191

EPA 8260

noyesnoyesyesyes

SolidSubsurface Soil

ENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

123

mgKg mgKg191

Page 1 of 40

AR103761

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr 0019 J nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0009 J 0019 U 0013 U 0012 U 0019 U 0014 U 0027 0013 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr 15 J nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr 0008 J nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr 11 J nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr 0027 J nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr 0032 J nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr 001 J nr nr nr nr nr nr2-Hexanone 001 U 001 U nr nr 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nr nr nr nr nr nrIsopropylbenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 035 D 0049 0014 U 0013 U 0013 Up-Isopropyl Toluene nr nr 01001 U 00682 U 0005 J 00061 U nr nr nr nr nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UMethylcyclohexane nr nr nr nr nr nr 0002 J 0019 U 0013 U 0006 J 0006 J 0014 U 0004 J 0013 U1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr 0008 J nr nr 054 J nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr 0014 J nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr 11 J 0007 JMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 0005 U 00061 B 0103 00682 U 0007 U 00061 U 0003 JB 0002 JB 0002 JB 0003 JB 0006 JB 0004 JB 0005 JB 0002 JB1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr 045 J nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr 0033 J nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr 038 J nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0002 J 0015 J 0014 U 0013 U 0013 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UNaphthalene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr 0008 JNaphthalene decahydro- trans- nr nr nr nr nr nr 0008 J nr nr 0008 J nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr 0007 J nr nr nr nrStyrene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0002 J 0019 U 0013 U 0012 U 0019 U 0014 U 0003 J 0013 U1112-Tetrachloroethane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UTetrachloroethene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0004 J 0001 J 0012 U 0019 U 0014 U 0013 U 0013 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr 0035 J nr nr nrToluene 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0002 J 0019 U 0013 U 0012 U 0005 J 0014 U 0014 0013 U123-Trichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U111-Trichloroethane 0022 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U112-Trichloroethane 0005 U 0005 U 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UTrichloroethene 0005 U 0005 U nr nr 0007 U 00061 U 0014 U 0019 U 0002 J 0012 U 0019 U 0014 U 0013 U 0013 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 UTrichlorofluoromethane nr nr 01001 U 00682 U 0007 U 00061 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U123-Trichloropropane nr nr 01001 U 00682 U 0007 U 00061 U nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr 0021 J nr nr nr 001 J123-Trimethylbenzene nr nr 01001 U 00682 U 00065 J 00061 U nr nr nr 0009 J nr nr nr nr135-Trimethylbenzene nr nr 01001 U 03444 0003 J 00061 U 0015 J nr nr nr nr nr 28 J nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U nr nr nr nr nr nr nr nr nr nr nr nrVinyl chloride 001 U 001 U 01001 U 00682 U 0014 U 0012 U 0014 U 0019 U 0013 U 0012 U 0019 U 0014 U 0013 U 0013 U m+p-Xylenes nr nr nr nr 0007 U 00061 U nr nr nr nr nr nr nr nro-Xylene nr nr nr nr 0007 U 00061 U nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 02003 U 01364 U nr nr 0006 J 0019 U 0013 U 0012 U 0015 J 0014 U 0189 0013 U

not reported not reported EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 82601 1 Not Reported Not Reported 1 1 1 1 1 1 and 17 1 1 1 1

133 163 NA 29 18 29 51 19 19 44 22 23 19mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Holding time exceeded Holding time exceeded

Page 2 of 40

AR103762

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 22 U 22 U U U nr nr 035 J 018 J 013 J 041 U 059 U 042 U 043 U 041 UAcenaphthylene 22 U 22 U U U nr nr 021 J 067 U 041 U 041 U 059 U 042 U 043 U 041 UAcetophenone nr nr U U nr nr 018 J 067 U 041 U 0084 J 009 J 042 U 046 0073 JAnthracene 22 U 22 U 10519 J U nr nr 064 041 J 021 J 0082 J 059 U 042 U 043 U 006 JAtrazine nr nr nr nr nr nr nr nr nr nr nr nr nr nrBenzaldehyde nr nr U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UBenzo(a)Anthracene 22 U 22 U 7323 J U nr nr 34 15 099 032 J 061 0044 J 031 J 02 JBenzo(a)Pyrene 22 U 22 U 7246 J U nr nr 37 13 082 035 J 038 J 042 U 02 J 021 JBenzo(b)fluoranthene 12 J 22 U J U nr nr 33 17 091 031 J 053 J 0047 J 022 J 024 JBenzo(ghi)Perylene 22 U 22 U U U nr nr 23 13 083 041 U 059 U 042 U 012 J 024 JBenzo(k)fluoranthene 22 U 22 U U U nr nr 27 097 073 021 J 036 J 0051 J 023 J 014 JBenzylbutylphthalateButylbenzylphthalate 22 U 22 U U U nr nr 39 D 42 041 U 016 J 059 U 0082 J 043 U 041 U11-Biphenyl nr nr U U nr nr 0099 J 067 U 0058 J 041 U 059 U 042 U 043 U 014 J4-Bromophenyl-phenylether 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UCaprolactam nr nr U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UCarbazole nr nr U U nr nr 037 J 067 U 013 J 041 U 059 U 042 U 043 U 041 U4-Chloroaniline 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Chloroethoxy)Methane 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Chloroethyl)Ether 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Chloroisopropyl)Ether 22 U 22 U nr nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Chloronaphthalene 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Chlorophenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U4-Chlorophenyl-phenylether 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UChrysene 22 U 22 U U U nr nr 41 DJ 16 11 042 064 0056 J 036 J 022 JDibenzo(ah)Anthracene 22 U 22 U U U nr nr 15 038 J 025 J 016 J 059 U 042 U 043 U 041 UDibenzofuran 22 U 22 U U U nr nr 022 J 013 J 017 J 041 U 059 U 042 U 043 U 007 J12-Dichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr33-Dichlorobenzidine 46 U 46 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U24-Dichlorophenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UDiethylphthalate 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U24-Dimethylphenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UDimethyl Phthalate 22 U 22 U U U nr nr 046 U 067 U 056 041 U 059 U 042 U 043 U 22Di-n-Butylphthalate 96 17 JB U U nr nr 067 067 U 026 J 0074 J 0081 J 042 U 0064 J 015 J46-Dinitro-2-Methylphenol 112 U 114 U U U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U24-Dinitrophenol 112 U 114 U U U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U24-Dinitrotoluene 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U26-Dinitrotoluene 22 U 22 U J J nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UDi-n-Octyl Phthalate 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 Ubis(2-Ethylhexyl)Phthalate 22 U 22 U J U nr nr 20 D 35 19 043 45 042 U 1 069Fluoranthene 22 U 22 U 13183 J U nr nr 64 D 25 15 044 079 0063 J 062 029 JFluorene 22 U 22 U J U nr nr 043 J 017 J 015 J 041 U 059 U 042 U 082 0062 JHexachlorobenzene 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UHexachlorobutadiene 22 U 22 U J nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UHexachlorocyclopentadiene 22 U 22 U J nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UHexachloroethane 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UIndeno(123-cd)Pyrene 22 U 22 U J U nr nr 4 DJ 16 09 04 J 03 J 042 U 015 J 025 JIsophorone 22 U 22 U J U nr nr 011 J 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Methylnaphthalene 22 U 22 U J U nr nr 033 J 02 J 02 J 017 J 013 J 042 U 22 172-Methylphenol 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 013 J4-Methylphenol 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 01 J 042 U 043 U 023 JMethylMercury nr nr J U nr nr nr nr nr nr nr nr nr nrNaphthalene 22 U 22 U J U nr nr 028 J 018 J 024 J 012 J 013 J 042 U 032 J 112-Nitroaniline 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U3-Nitroaniline 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U4-Nitroaniline 112 U 114 U J nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 UNitrobenzene 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U2-Nitrophenol 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U4-Nitrophenol 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 UN-Nitroso-Di-n-Propylamine 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UN-Nitrosodiphenylamine 22 U 22 U J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U22-Oxybis(1-Chloropropane) nr nr J U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 UPentachlorophenol 112 U 114 U J U nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 UPhenanthrene 22 U 22 U 10215 J U nr nr 49 D 17 099 034 J 063 042 U 21 038 JPhenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 05Pyrene 091 J 076 J nr nr 93 D 27 21 062 1 0069 J 18 04 J124-Trichlorobenzene 22 U 22 U U U nr nr nr nr nr nr nr nr nr nr245-Trichlorophenol 112 U 114 U U J nr nr 12 U 17 U 1 U 1 U 15 U 11 U 11 U 1 U246-Trichlorophenol 22 U 22 U U U nr nr 046 U 067 U 041 U 041 U 059 U 042 U 043 U 041 U

Incomplete lab report No SVOCs detected

Incomplete lab report No other SVOCs detected

mgKgmgKgmgKgmgKg29

1 amp 105Not reported

mgKg mgKgNot Reported

EPA 625EPA 625

Not ReportedmgKgmgKg

Not Reported5 1

19191

EPA 8070EPA 80701

51

EPA 8070 EPA 80701

22

EPA 8070EPA 8070

mgKgmgKg441

EPA 80701

19mgKgmgKg

231

EPA 8070

Page 3 of 40

AR103763

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 9850 14030 15719 8105 nr nr 16000 49000 12000 9900 17000 9900 8500 2300Antimony 29 U 29 U 711 944 nr nr 90 63 10 U 12 U 80 U 22 48 10 UArsenic 255 J 113 J 3574 11788 nr nr 43 300 16 65 11 62 25 5 UBarium 217 221 234 738 nr nr 800 800 190 580 140 82 100 26Beryllium 3 U 3 U 25 U 25 U nr nr 14 1 14 14 16 058 073 039Cadmium 379 301 228 215 nr nr 14 19 44 14 28 12 16 05 UCalcium 63550 86300 32542 26434 nr nr 28000 25000 22000 21000 190000 5100 37000 2000Chromium 266 251 3803 215 nr nr 450 1300 66 650 67 27 120 33Chromium III nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 28 U 26 U 497 123 nr nr 30 21 7 18 8 46 13 12Copper 364 160 2894 1300 nr nr 3300 3200 350 280 150 390 190 19Iron 25480 15660 84124 58149 nr nr 140000 95000 36000 36000 30000 14000 84000 9100Lead 508 J 222 J 831 2283 nr nr 3000 4100 420 940 430 210 110 40Magnesium 11910 19410 17207 5350 nr nr 9700 8100 7100 8100 83000 2200 5200 840Manganese 699 J 596 J 4898 609 nr nr 2500 1500 620 380 520 160 8900 150Mercury 032 016 117 183 nr nr 14 22 01 U 009 U 018 U 01 U 021 018Nickel 22 U 20 U 7229 237 nr nr 230 510 49 25 U 37 44 160 16Potassium 1630 J 1600 J 818 809 nr nr 570 U 700 880 6200 U 4100 U 700 2100 500 USelenium 3 U 3 U 364 125 U nr nr 22 57 75 3 05 U 13 46 05 USilver 6 U 5 U 25 U 25 U nr nr 1 U 27 1 U 12 U 8 U 1 U 1 U 1 USodium 2800 U 2660 2028 3585 nr nr 610 410 160 625 U 400 U 190 840 160Thallium 5 U 5 U 125 U 125 U nr nr 094 17 056 U 058 U 065 U 095 29 04 UTin 22 U 20 U nr nr nr nr nr nr nr nr nr nr nr nrVanadium 28 U 26 U 91 236 nr nr 55 980 30 46 46 18 1 U 28Zinc 545 458 1584 1922 nr nr 6400 5400 1000 110000 540 880 370 58Cyanide 12 U 13 U 0187 U 0127 U nr nr nr nr nr nr nr nr nr nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Not ReportedNot Reported

mgKgmgKgNot ReportedNot ReportedNot Reported

194mgKgmgKg

172Not Reported

VariousNot Reported

23mgKgmgKg

54Not Reported

VariousVariousNot Reported

20mgKgmgKg

20Not Reported

VariousVariousNot Reported

37mgKgmgKg

31Not Reported

Various VariousNot Reported

20mgKgmgKg

25Not Reported

Various

Page 4 of 40

AR103764

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

1123104

Subsurface SoilENSAT121201

82073 000006

Solid

ENSATSubsurface Soil

Solid

1123105

82073 000007

121201

SolidSubsurface Soil

NUS062785

MCB980CA 885

S-4 Drum Area AugerS-4

Sauer Dump

CA 887S-6 Burn Area Auger

SolidSubsurface Soil

NUS062785

S-6Sauer Dump

MCB982

Sauer DumpS-11

A900927E400071A900949092999

MDESubsurface Soil

SolidGW-1 locsubsurface

MDE

GW-2 locsubsurfaceSolid

092999A900950E400072A900928

S-12Sauer Dump

Subsurface SoilSolid

Subsurface SoilENSAT121101

82073 000001

1123099TP-1 (35)

Sauer DumpSauer DumpS-12a

99121533

121599MDE

Subsurface SoilSoil

Resampling of S-12Resampling of S-11Soil

Subsurface SoilMDE

121599

99121532

S-11aSauer Dump Sauer Dump

TP-2 (4)1123100

82073 000002

121101ENSAT

Subsurface SoilSolid

Sauer DumpTP-5 (7)1123103

82073 000005

121201ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000008

1123106TP-9 (10)

Sauer DumpSauer DumpTP-4 (115)

1123102

82073 000004

121101ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121101

82073 000003

1123101TP-3 (675)Sauer Dump Sauer Dump

TP-7 (5)TP-6 (75)Sauer Dump

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ualpha-BHC 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ubeta-BHC 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Udelta-BHC 0038 U 0039 U 05 U 05 U 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ugamma-BHC (Lindane) 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ualpha-Chlordane nr nr nr nr nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 Ugamma-Chlordane nr nr nr nr nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UChlordane total 038 U 039 U 025 U 025 U nr nr nr nr nr nr nr nr nr nr44-DDD 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 U44-DDE 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 U44-DDT 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 096 PD 00042 U 00041 UDieldrin 0076 U 0085 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndosulfan I 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UEndosulfan II 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndosulfan sulfate 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndrin 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndrin aldehyde 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UEndrin ketone 0076 U 0078 U 05 U 05 U nr nr 0046 U 00067 U 081 U 00041 U 00059 U 0021 U 00042 U 00041 UHeptachlor 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UHeptachlor epoxide 0038 U 0039 U 05 U 05 U nr nr 0024 U 00035 U 042 U 00021 U 0003 U 0011 U 00022 U 00021 UMethoxychlor 0076 U 0078 U 05 U 05 U nr nr 024 U 0035 U 42 U 0021 U 003 U 011 U 0022 U 0021 UToxaphene 076 U 078 U 25 U 25 U nr nr 24 U 035 U 42 U 021 U 03 U 11 U 022 U 021 UAroclor-1016 038 U 039 U 025 U 025 U nr nr 046 U 0067 U 81 U 0041 U 0059 U 021 U 0042 U 0041 UAroclor-1221 038 U 039 U 025 U 025 U nr nr 094 U 014 U 17 U 0083 U 012 U 043 U 0086 U 0083 UAroclor-1232 038 U 039 U 025 U 025 U nr nr 046 U 0067 U 81 U 0041 U 0059 U 021 U 0042 U 0041 UAroclor-1242 038 U 039 U 025 U 025 U nr nr 046 U 0067 U 81 U 0041 U 0059 U 021 U 88 D 0041 UAroclor-1248 038 U 039 U nr nr nr nr 046 U 0067 U 81 U 31 PD 21 PD 17 PD 91 D 13 DAroclor-1254 1452 2056 177 J 79 nr nr 72 D 84 D 800 D 56 PD 37 D 021 U 0042 U 1 PAroclor-1260 076 U 078 U 1113 J 025 U nr nr 43 D 0067 U 81 U 0041 U 0059 U 26 PD 0042 U 0041 UTotal PCBs 1452 2056 2883 79 115 84 800 87 58 43 179 23

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 8081Not ReportedNot Reported

mgKgmgKgNot ReportedNot Reported

EPA 808110

Not ReportedmgKgmgKg

Not Reported10

EPA 808180825 and 40

22mgKgmgKg

441 and 5

EPA 808180821 and 40

19mgKg

EPA 80818082

mgKg19

200 and 600EPA 80818082EPA 80818082

1 and 4051

mgKgmgKg29

10 and 100EPA 80818082 EPA 80818082

1 and 219

mgKgmgKg22

1 and 20EPA 80818082

Page 5 of 40

AR103765

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0028 0086 0021 0015 U 0048 0015 0022 J nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 J 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0007 J 0025 J 0014 U 0015 U 0013 J 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0004 J 0017 J 0014 U 0015 U 0024 J 0015 U 0018 J nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr 012 nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0002 J 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr0011 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr0018 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 8260

yesyes

yesnoyesno

yesno

EPA 8260

1123107

Subsurface SoilENSAT121201

82073 000009

yesyes

Dup Of TP-7Solid

noyesnoyes

yesyes

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump

118

mgKg mgKg691

Sauer DumpMW-3 (135-15)

122001ENSAT

yesno

EPA 82601

32mgKgmgKg

591

EPA 8260

noyesnoyesyesyes

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolid

yesyesyesnoyesno

EPA 82601

35mgKgmgKg

301

EPA 8260

noyesnoyesyesyes

SolidSubsurface Soil

ENSAT121901

MW-4 (11-12)Sauer Dump

mgKg621

EPA 8260

Sauer DumpI-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnononono

SolidSubsurface Soil

ENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnoyesyesyes

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnononono

SolidSubsurface Soil

ENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolid

nonononoyesnono

yesnono

nono

SolidSubsurface Soil

ENSAT0606022061009

noyesnononono

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Page 6 of 40

AR103766

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0002 J 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0005 J 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0006 J 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0003 JB 0032 U 0014 U 0068 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0007 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr 011 nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0001 J 0032 U 0014 U 0015 U 0001 J 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0013 J nr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0032 U 0014 U 0015 U 0024 U 0015 U 0026 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0012 U 0003 J 0014 U 0015 U 0006 J 0015 U 0026 U nr nr nr nr nr nr nr nr

EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 82601 1 1 1 1 1 1

18 69 30 35 59 32 62mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Page 7 of 40

AR103767

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag04 U 017 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0042 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 013 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0095 J 11 U 047 U 019 J 015 J 049 U 087 U nr nr nr nr nr nr nr nr0065 J 11 U 047 U 017 J 011 J 049 U 087 U nr nr nr nr nr nr nr nr0089 J 11 U 047 U 02 J 014 J 049 U 087 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr0067 J 11 U 047 U 015 J 011 J 049 U 087 U nr nr nr nr nr nr nr nr0057 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr0096 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr01 J 11 U 047 U 023 J 019 J 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0053 J 015 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

0066 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr22 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr007 J 11 U 047 U 012 JB 097 U 01 JB 043 JB nr nr nr nr nr nr nr nr

1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr046 036 JB 0058 JB 13 B 16 B 025 JB 29 B nr nr nr nr nr nr nr nr019 J 032 J 047 U 039 J 032 J 049 U 087 U nr nr nr nr nr nr nr nr

0051 J 016 J 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 011 J 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr12 043 J 047 U 022 J 097 U 049 U 087 U nr nr nr nr nr nr nr nr009 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr02 J 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr06 029 J 047 U 014 J 097 U 049 U 087 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

026 J 052 J 047 U 025 J 017 J 049 U 087 U nr nr nr nr nr nr nr nr027 J 11 U 047 U 12 097 U 049 U 087 U nr nr nr nr nr nr nr nr021 J 024 J 047 U 047 J 031 J 049 U 087 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr1 U 27 U 12 U 2 U 24 U 12 U 22 U nr nr nr nr nr nr nr nr

04 U 11 U 047 U 079 U 097 U 049 U 087 U nr nr nr nr nr nr nr nr

EPA 80701

58mgKgmgKg

301

EPA 8070EPA 80701

69mgKgmgKg

181

EPA 8070

mgKg581

EPA 8070EPA 80701

32mgKgmgKg

661

EPA 8070

Page 8 of 40

AR103768

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag2500 33000 24000 13000 28000 28000 40000 nr nr nr nr nr nr nr nr

10 U 30 U 10 U 10 U 20 U 10 U 20 U nr nr nr nr nr nr nr nr5 U 12 47 26 11 14 56 nr nr nr nr nr nr nr nr

40 81 34 32 120 79 91 nr nr nr nr nr nr nr nr035 21 1 15 31 12 38 nr nr nr nr nr nr nr nr06 024 006 U 01 16 0084 069 nr nr nr nr nr nr nr nr

2500 3300 240 410 21000 540 3100 nr nr nr nr nr nr nr nr27 40 30 14 160 36 53 nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr21 39 35 46 18 44 17 nr nr nr nr nr nr nr nr33 23 13 53 310 29 29 nr nr nr nr nr nr nr nr

11000 52000 17000 13000 38000 29000 40000 nr nr nr nr nr nr nr nr57 33 10 22 260 36 40 nr nr nr nr nr nr nr nr950 6400 1800 1500 7900 3000 8000 nr nr nr nr nr nr nr nr170 450 38 100 560 70 870 nr nr nr nr nr nr nr nr009 U 022 U 009 U 01 U 2 01 U 073 nr nr nr nr nr nr nr nr20 64 96 81 51 16 36 nr nr nr nr nr nr nr nr400 U 5800 1800 1400 3800 3100 7300 nr nr nr nr nr nr nr nr05 U 22 08 07 62 06 42 nr nr nr nr nr nr nr nr1 U 3 U 1 U 1 U 2 U 1 U 12 nr nr nr nr nr nr nr nr

160 3300 190 500 2800 710 2700 nr nr nr nr nr nr nr nr05 U 054 U 023 U 02 U 038 U 022 U 04 U nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr42 70 44 20 64 42 64 nr nr nr nr nr nr nr nr110 130 26 22 490 54 130 nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 2008Not Reported

22mgKgmgKg

17Not Reported

EPA 2008EPA 2008Not Reported

67mgKgmgKg

19Not Reported

Various

mgKg55

Not ReportedEPA 2008EPA 2008

Not Reported20

mgKgmgKg61

Not ReportedEPA 2008

Page 9 of 40

AR103769

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

1123107

Subsurface SoilENSAT121201

82073 000009

Dup Of TP-7Solid

Subsurface SoilSolid

ENSAT122001

SolidSubsurface Soil

121901ENSAT

Subsurface SoilSolid

Sauer DumpMW-2 (9-11)TP-A (5)

Sauer Dump Sauer DumpMW-3 (135-15)

122001ENSAT

MW-1 (8-12)Sauer DumpSauer Dump

MW-5 (12-135)

121901ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT121901

MW-4 (11-12)Sauer Dump Sauer Dump

I-13 (2-4)

2061016060502ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0605022061014

I-12 (2-4)Sauer DumpSauer Dump

A-3 (2-3)

2061011060502ENSAT

Subsurface SoilSolid

Dup Of MW-1Solid

Subsurface SoilENSAT122001

MW-A (8-12)Sauer Dump Sauer Dump

D-7 (4-9)D-8 (2-4)Sauer DumpSauer Dump

J-11 (2-4)I-11 (2-4)Sauer Dump

2061029061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06070220610242061028

060602ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT0606022061009

SolidSubsurface Soil

ENSAT0611022061025

D-8II (4-6)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr0004 U 0011 U 00047 U 00079 U 00097 U 00049 U 00087 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr00021 U 00055 U 00024 U 0004 U 0005 U 00025 U 00045 U nr nr nr nr nr nr nr nr0021 U 0055 U 0024 U 004 U 005 U 0025 U 0045 U nr nr nr nr nr nr nr nr021 U 055 U 024 U 04 U 05 U 025 U 045 U nr nr nr nr nr nr nr nr004 U 011 U 0047 U 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U

0082 U 022 U 0096 U 016 U 02 U 0099 U 018 U 07 U 140 U 35 U 35 U 28 U 35 U 56 U 7 U004 U 011 U 0047 U 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U004 U 011 U 019 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U08 011 U 0047 U 0079 U 0097 U 0049 U 0087 U 035 U 70 U 18 U 18 U 14 U 18 U 28 U 35 U084 P 011 U 0047 U 0079 U 06 0049 U 011 12 D 1500 D 240 D 400 D 160 DB 13 D 320 DB 32 DB031 P 011 U 0047 U 032 P 045 P 0049 U 0087 U 24 D 70 U 18 U 18 U 14 U 59 D 28 U 91 D195 019 032 105 011 36 1500 240 400 160 189 320 411

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 808180821

58mgKgmgKg

301

EPA 80818082EPA 808180821

69mgKgmgKg

181

EPA 80818082 8082500

5mgKgmgKg

5200080828082

105

mgKgmgKg621

EPA 80818082EPA 808180821

32mgKgmgKg

661

EPA 80818082

mgKg5

10080828082

8005

mgKgmgKg5

5080828082

4005

mgKgmgKg5

5008082

Page 10 of 40

AR103770

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSATENSAT ENSAT ENSAT ENSAT012304 012304012204 012204 012304 012304

I-0 4-6 Z-06 2-4 Z-06 4-6 Z-06 6-8

012204

Sauer Dump Sauer Dump

Solid

Sauer Dump Sauer DumpF-0 2-4 H-0 2-4

Sauer Dump Sauer Dump

ENSATSubsurface Soil

Sauer DumpE5-07 6-8

Sauer DumpG-6 (4-5)

2061035061102ENSAT

Subsurface SoilSolidSolid

Sauer DumpE-8II (2-4)

Subsurface SoilENSAT06110220610152061023

061102ENSAT

Subsurface SoilSolid

Sauer DumpG-8 (2-4)G-7 (4-6)

Sauer DumpSauer DumpG-7 (2-4)F-7 (4-6)

Sauer Dump

2061026061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06110220610082061010

061102ENSAT

SolidSubsurface Soil

SolidSubsurface Soil

ENSAT0611022061007

G-6 (4-7)Sauer Dump

SolidSubsurface Soil

ENSAT0611022061032

I-7 (6-8)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr 1500 670 1600 960 23000 2400nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr

EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

Page 14 of 40

AR103771

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSATENSAT ENSAT ENSAT ENSAT012304 012304012204 012204 012304 012304

I-0 4-6 Z-06 2-4 Z-06 4-6 Z-06 6-8

012204

Sauer Dump Sauer Dump

Solid

Sauer Dump Sauer DumpF-0 2-4 H-0 2-4

Sauer Dump Sauer Dump

ENSATSubsurface Soil

Sauer DumpE5-07 6-8

Sauer DumpG-6 (4-5)

2061035061102ENSAT

Subsurface SoilSolidSolid

Sauer DumpE-8II (2-4)

Subsurface SoilENSAT06110220610152061023

061102ENSAT

Subsurface SoilSolid

Sauer DumpG-8 (2-4)G-7 (4-6)

Sauer DumpSauer DumpG-7 (2-4)F-7 (4-6)

Sauer Dump

2061026061102ENSAT

Subsurface SoilSolidSolid

Subsurface SoilENSAT06110220610082061010

061102ENSAT

SolidSubsurface Soil

SolidSubsurface Soil

ENSAT0611022061007

G-6 (4-7)Sauer Dump

SolidSubsurface Soil

ENSAT0611022061032

I-7 (6-8)Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr28 U 35 U 1800 U 180 U 18 U 7 U 14 U 2000 D 0039 U 8 U 20 U 78 U56 U 7 U 3500 U 350 U 35 U 14 U 28 U 280 U 008 U 16 U 40 U 16 U28 U 35 U 1800 U 180 U 18 U 7 U 14 U 140 U 0039 U 8 U 20 U 78 U28 U 35 U 1800 U 180 U 18 U 7 U 14 U 140 U 036 8 U 160 78 U28 U 35 U 1800 U 180 U 18 U 7 U 14 U 140 U 0039 U 8 U 20 U 78 U310 D 39 D 33000 DB 3900 D 370 D 100 D 190 DB 670 DB 067 110 110 11028 U 12 D 1800 U 180 U 18 U 7 U 14 U 140 U 035 8 U 20 U 78 U

310 51 33000 3900 370 100 190 2670 138 110 270 110

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

8082800

5mgKg

8082400

5mgKgmgKg

5200

80828082500

5mgKgmgKg

5500080828082

500005

mgKgmgKg5

1008082

mgkg18200

EPA 8082EPA 80821

16mgkgmgKg

540008082 EPA 8082

20015

mgkgmgkg17500

EPA 8082

Page 15 of 40

AR103772

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateDuplicate DuplicateSolidSolid Solid Solid Solid Solid SolidSolid SolidSolid Solid Solid Solid Solid Solid

Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804012304 012704 012704 012704 012804 012804012704 012704012704 012704 012704 012704 012704 012704

K-16 4-6 dup I5-145 2-4 dup K-12 2-4 dupBackground 000047 Background 000048 Background 000049I-16 4-6 I-16 6-8 Z-03 6-8 Z-03 8-10 Z-05 6-8 Z-07 6-8Z-04 8-10 Z-05 2-4Z-06 8-10 H-16 6-8 Z-07 8-10 Z-08 6-8

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

4000 740 700 1600 1200 2700 3200 1100 1900 3900 700 27000 4600 23000nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420 EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

Page 19 of 40

AR103773

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateDuplicate DuplicateSolidSolid Solid Solid Solid Solid SolidSolid SolidSolid Solid Solid Solid Solid Solid

Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804012304 012704 012704 012704 012804 012804012704 012704012704 012704 012704 012704 012704 012704

K-16 4-6 dup I5-145 2-4 dup K-12 2-4 dupBackground 000047 Background 000048 Background 000049I-16 4-6 I-16 6-8 Z-03 6-8 Z-03 8-10 Z-05 6-8 Z-07 6-8Z-04 8-10 Z-05 2-4Z-06 8-10 H-16 6-8 Z-07 8-10 Z-08 6-8

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flagnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nr

092 U 19 U 81 U19 U 39 U 17 U092 U 19 U 81 U092 U 19 U 81 U092 U 19 U 81 U93 19 87092 U 19 U 81 U93 19 87

mgkg2820

EPA 8082 EPA 808220019

mgkgmgkg1450

EPA 8082

Page 20 of 40

AR103774

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid Solid Solid Solid Solid SolidSolid Solid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804 012804 012804 012804 012804 012804012804 012804 012804012804 012804 012804 012804 012804 012804

K-15 2-4 K-15 4-6K-12 2-4 K-12 4-6 K-13 2-4 K-13 4-6 K-13 6-8 K-14 2-4 K-14 4-6 K-14 6-8I5-145 2-4 I5-145 4-6 J-16 2-4 J-16 4-6 J-16 6-8Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

7100 2600 25000 1600 2800 8600 2800 2100 900nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

mgkg

EPA 7420EPA 7420

mgkg mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420 EPA 7420

mgkgmgkg

EPA 7420EPA 7420

mgkg

Page 24 of 40

AR103775

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Solid Solid Solid Solid Solid SolidSolid Solid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT012804 012804 012804 012804 012804 012804012804 012804 012804012804 012804 012804 012804 012804 012804

K-15 2-4 K-15 4-6K-12 2-4 K-12 4-6 K-13 2-4 K-13 4-6 K-13 6-8 K-14 2-4 K-14 4-6 K-14 6-8I5-145 2-4 I5-145 4-6 J-16 2-4 J-16 4-6 J-16 6-8Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr22 U 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U45 U 92 U 45 U 190 U 15 U 17 U 43 U 93 U 89 U 43 U 19 U22 U 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U22 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U22 U 45 U 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U33 52 260 1300 120 57 320 48 63 210 9667 13 22 U 92 U 75 U 085 U 21 U 46 U 44 U 21 U 92 U

419 65 260 1300 120 57 320 48 63 210 96

mgkg25500

EPA 8082EPA 808210027

mgkgmgkg2550

EPA 8082 EPA 808210025

mgkgmgkg28100

EPA 8082EPA 808250022

mgkgmgkg6110

EPA 8082EPA 808210056

mgkgmgkg28

2000EPA 8082 EPA 8082

20028

mgkgmgkg22500

EPA 8082

Page 25 of 40

AR103776

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT012904 012904012804 012804 012904 012904 012904 012904 012904 012904012904 012904012804 012804

J0 115 2-4 J0 115 4-6I5-70 2-4 I5-70 4-6 I5-70 6-8K-10 8-10 dupG-075 8-10 I5-07 2-4 I5-07 4-6 I5-07 6-8 J-115 2-4 J-115 4-6K-16 4-6 K-16 6-8 Background 000050 G-075 2-4 G-075 4-6 G-075 6-8K-15 6-8 K-16 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

1500 3200 860 810nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

EPA 7420

mgkg

EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420

Page 29 of 40

AR103777

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT012904 012904012804 012804 012904 012904 012904 012904 012904 012904012904 012904012804 012804

J0 115 2-4 J0 115 4-6I5-70 2-4 I5-70 4-6 I5-70 6-8K-10 8-10 dupG-075 8-10 I5-07 2-4 I5-07 4-6 I5-07 6-8 J-115 2-4 J-115 4-6K-16 4-6 K-16 6-8 Background 000050 G-075 2-4 G-075 4-6 G-075 6-8K-15 6-8 K-16 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U

18 U 17 U 44 U 43 U 120 U 120 U 6 U 61 U 110 U 28 U 59 U 84 U 18 U9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U9 U 85 U 21 U 21 U 58 U 60 U 29 U 3 U 56 U 14 U 29 U 41 U 88 U

86 93 24 300 370 340 28 21 660 150 24 610 1209 U 85 U 21 U 21 U 58 U 60 U 29 U 63 56 U 14 U 29 U 41 U 88 U

86 93 24 300 370 340 28 273 660 150 24 610 120

EPA 808250022

mgkgmgkg2350

EPA 8082EPA 808220022

mgkgmgkg27200

EPA 8082 EPA 80822028

EPA 8082EPA 80825

17

EPA 8082EPA 8082

mgkg15100

mgkgmgkg165

mgkg25200

mgkg mgkgmgkg11100

EPA 8082 EPA 8082EPA 80821000100

175

EPA 8082

20mgkgmgkg

15

Page 30 of 40

AR103778

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT013004 013004012904 012904 012904 012904 012904 012904 012904 012904 013004 013004012904 012904

J0 115 6-8 J0 115 8-10 J-115 4-6 dupD5-07 2-4 D5-07 6-8K-11 4-6 S5 (2004) E-075 2-4 E-075 6-8K-10 2-4 K-10 6-8 K-10 8-10 K-11 2-4J-115 6-8 J-115 8-10 K-08 2-4 K-09 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

2400 340 1200 1300nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

mgkg

EPA 7420EPA 7420

mgkgmgkg

EPA 7420

mgkg

EPA 7420

Page 34 of 40

AR103779

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateSolid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid SolidSolid Solid

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT013004 013004012904 012904 012904 012904 012904 012904 012904 012904 013004 013004012904 012904

J0 115 6-8 J0 115 8-10 J-115 4-6 dupD5-07 2-4 D5-07 6-8K-11 4-6 S5 (2004) E-075 2-4 E-075 6-8K-10 2-4 K-10 6-8 K-10 8-10 K-11 2-4J-115 6-8 J-115 8-10 K-08 2-4 K-09 2-4

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr11 U 87 U 63 U 06 U 81 U 10 U 59 U 062 U 6 U 063 U22 U 18 U 13 U 12 U 17 U 20 U 12 U 13 U 12 U 13 U11 U 87 U 63 U 06 U 81 U 10 U 59 U 062 U 6 U 063 U11 U 87 U 63 U 31 81 U 10 U 59 U 062 U 6 U 063 U11 U 87 U 63 U 06 U 81 U 10 U 59 U 062 U 6 U 063 U130 120 100 47 100 99 57 27 73 3311 U 87 U 63 U 12 81 U 10 U 59 U 094 6 U 09

130 120 100 9 100 99 57 364 73 42

20038

EPA 8082

mgkg24200

EPA 8082

mgkg

EPA 808220034

mgkgmgkg19200

EPA 8082EPA 80821

17mgkgmgkg

2210

EPA 8082 EPA 80821

22mgkgmgkg

1810

EPA 8082EPA 80821

20mgkgmgkg

1610

EPA 8082

Page 35 of 40

AR103780

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazine BenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

DuplicateSolid Solid Solid SolidSolid SolidSolid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT020204 020204 020204 020304020204 020204013004 013004 013004 020204013004 013004013004 013004

TP 3B 5 dupTP 3B 5 TP 3C 7G-065 2-4 G-065 4-6 TP 2B 10 TP 2D 9 TP 3D 6 TP 1B 7F5-07 6-8 F5-07 8-10 TP 1C 9 S-7 (2004)G-065 6-8 G-065 8-10

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nr

013 J 39 U 21 U 39 U 034 J 045 J 04 J 19 U012 J 39 U 21 U 39 U 032 J 049 J 38 U 19 U015 J 39 U 21 U 39 U 037 J 045 J 38 U 19 U

0076 J 39 U 21 U 39 U 022 J 39 U 38 U 19 U0097 J 39 U 21 U 39 U 025 J 045 J 039 J 19 U0083 J 39 U 027 J 39 U 19 U 39 U 38 U 024 J039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U014 J 39 U 21 U 04 J 041 J 058 J 12 J 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr

039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U047 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U09 U 89 U 48 U 89 U 45 U 89 U 88 U 44 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U007 J 068 J 16 J 056 J 15 J 5 045 J 02 J02 J 39 U 21 U 39 U 064 J 075 J 068 J 028 J039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U

0078 J 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nr

039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 Unr nr nr nr nr nr nr nr

098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U0066 J 39 U 21 U 39 U 056 J 079 J 38 U 024 J039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U02 J 056 J 21 U 044 J 075 J 12 J 079 J 036 Jnr nr nr nr nr nr nr nr

098 U 97 U 52 U 96 U 49 U 97 U 96 U 48 U039 U 39 U 21 U 39 U 19 U 39 U 38 U 19 U

EPA 8270

14mgkgmgkg

21

EPA 8270EPA 8270

14mgkgmgkg

15

EPA 8270 EPA 8270

13mgkgmgkg

13

EPA 8270EPA 8270

14mgkgmgkg

14

EPA 8270

Page 38 of 40

AR103781

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

DuplicateSolid Solid Solid SolidSolid SolidSolid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT020204 020204 020204 020304020204 020204013004 013004 013004 020204013004 013004013004 013004

TP 3B 5 dupTP 3B 5 TP 3C 7G-065 2-4 G-065 4-6 TP 2B 10 TP 2D 9 TP 3D 6 TP 1B 7F5-07 6-8 F5-07 8-10 TP 1C 9 S-7 (2004)G-065 6-8 G-065 8-10

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag4100 9900 7200 9300 16000 7200 7400 13000

29 U 29 U 67 29 U 28 29 U 29 U 29 U83 13 11 62 25 42 75 7371 140 110 120 250 75 160 15029 U 29 U 31 U 29 U 3 29 U 29 U 29 U29 U 69 31 U 29 U 12 29 U 29 U 45

7200 60000 71000 38000 51000 14000 25000 50000270 150 44 63 210 32 130 68nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr55 86 39 83 32 6 77 5230 1200 13000 980 3400 520 130 820

62000 83000 29000 45000 110000 29000 37000 43000270 550 8700 850 1900 300 590 600

1800 7400 30000 12000 6500 4500 7400 9300520 610 320 550 750 370 1400 450039 13 099 22 23 047 17 1110 74 34 56 85 27 38 47590 U 580 U 630 U 580 U 580 U 580 U 620 570 U29 U 18 46 29 U 49 29 U 29 U 4729 U 29 U 31 U 29 U 29 U 29 U 29 U 29 U

1300 580 U 630 U 580 U 580 U 580 U 580 U 570 U23 U 23 U 25 U 23 U 23 U 23 U 23 U 23 Unr nr nr nr nr nr nr nr24 28 33 21 28 24 150 22320 2700 700 490 4100 690 680 1500nr nr nr nr nr nr nr

EPA 6020

mgkgmgkg

EPA 6020EPA 6020

mgkgmgkg

EPA 6020EPA 6020

mgkgmgkg

EPA 6020 EPA 6020

mgkgmgkg

EPA 6020

Page 39 of 40

AR103782

Table A2aSubsurface Soil Analytical Data - 1985 to 2004

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

DuplicateSolid Solid Solid SolidSolid SolidSolid Solid Solid SolidSolid SolidSolid Solid

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSATENSAT ENSAT020204 020204 020204 020304020204 020204013004 013004 013004 020204013004 013004013004 013004

TP 3B 5 dupTP 3B 5 TP 3C 7G-065 2-4 G-065 4-6 TP 2B 10 TP 2D 9 TP 3D 6 TP 1B 7F5-07 6-8 F5-07 8-10 TP 1C 9 S-7 (2004)G-065 6-8 G-065 8-10

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

068 U 12 U 12 U 17 U 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U14 U 24 U 24 U 34 U 26 U 150 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U068 U 12 U 12 U 17 U 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U068 U 12 U 12 U 22 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U068 U 12 U 12 U 17 U 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U67 12 150 270 110 370 059 U 15 063 U 12 16 24 14 096 U068 U 12 U 12 U 59 13 U 72 U 059 U 058 U 063 U 058 U 058 U 058 U 058 U 057 U67 12 150 351 110 370 ND 15 ND 12 16 24 14 096

EPA 80822

16mgkgmgkg

271

EPA 8082 EPA 8082

mgkgmgkg

EPA 8082EPA 808210031

mgkgmgkg2220

EPA 8082EPA 80822526

mgkgmgkg1720

EPA 8082 EPA 8082

mgkgmgkg

EPA 8082EPA 8082

mgkgmgkg

EPA 8082EPA 8082

mgkgmgkg

EPA 8082

Page 40 of 40

AR103783

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer DumpS-1-2005

Y-055 12-14 dup

ENSATSubsurface Soil

020205

SolidDuplicate

Sauer Dump

020205

Solid

Y-055 10-12Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpY-055 20-22 G-0625 6-8 G-0625 8-10 J-115 10-12Y-055 6-8 Y-055 8-10Y-055 2-4 Y-055 4-6 G-0625 10-12 J-115 12-14Y-055 12-14 Y-055 14-16 Y-055 16-18 Y-055 18-20

020205 020205 020205 020205 020205 020305 020305 020305020205 020205 020205 020205 020305 020305ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSATENSAT ENSAT

Subsurface Soil Subsurface Soil Subsurface SoilSubsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid Solid

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrbeta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrdelta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-BHC (Lindane) nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChlordane total nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDD nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDE nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDT nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDieldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan I nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan II nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan sulfate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin aldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin ketone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor epoxide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethoxychlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToxaphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAroclor-1016 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1221 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1232 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1242 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1248 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UAroclor-1254 29 27 31 31 056 U 049 U 031 U 028 U 03 47 16 031 U 20 43 061 U 065 UAroclor-1260 16 U 15 U 17 U 25 U 056 U 049 U 031 U 028 U 029 U 30 U 15 U 031 U 15 U 32 U 061 U 065 UTotal PCBs 29 27 31 31 ND ND ND ND 03 47 16 ND 20 43 ND ND

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag

23mgkg

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082

22 21 20 2415 1721 28 51 57 50 23 60 6315mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg mgkg

Page 5 of 30

AR103784

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpK-16 10-12 K-16 12-14 K-16 14-16 K-17 10-12 K-17 2-4 L-10 2-4J-115 8-10 S-2-2005J-115 14-16 J-115 6-8 K-17 4-6 K-17 6-8 K-17 8-10K-16 6-8 K-16 8-10

J-115 10-12 dup

020305 020305 020405 020405020305 020305 020405 020405 020405 020405 020405 020405 020405 020405ENSAT ENSAT ENSAT ENSATENSAT

020705ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSolidSolid Solid Solid Solid Solid SolidSolid Solid Solid SolidSolid Solid Solid Solid

Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 31 U 18 U 18 U 038 U 099 U05 U 33 41 06 U 048 U 051 U 051 U 39 43 075 U 69 23 35 13 099 U05 U 18 U 33 U 06 U 048 U 051 U 051 U 18 U 28 U 075 U 39 18 U 18 U 038 U 099 UND 33 41 ND ND ND ND 39 43 ND 69 23 35 13 ND

EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082

5749 52 52 3251 31 27 59 68 21 30 36 7633mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkg

Page 10 of 30

AR103785

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-10 4-6 L-14 0-2L-12 0-2 L-13 0-2 L-15 0-2 L-16 0-2 L-16 10-12 L-16 2-4

020705 020705 020705 020805 020805020805 020805 020805ENSAT ENSATENSATENSAT ENSATENSAT ENSATENSAT ENSAT

Surficial SoilENSAT

Subsurface SoilSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid Solid Solid

Subsurface SoilSolid

Surficial Soil Surficial Soil Surficial Soil Surficial SoilSolidSolid

020705 020705 020705 020805 020805

Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-10 10-12 L-10 6-8 L-10 8-10L-09 10-12 L-09 2-4 L-09 4-6 L-09 6-8 L-09 8-10

020805 020805 020805ENSAT ENSAT ENSAT ENSAT ENSAT ENSAT

Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 33 012 U 017 U 012 U 0093 U 25 012 U 0088 U 018 U13 U 064 U 072 U 037 U 68 U 23 U 0088 U 088 U 012 U 017 U 012 U 0093 U 083 U 012 U 0088 U 018 U13 U 064 U 2 084 13 37 0088 U 12 045 11 017 034 87 11 0088 U 2413 U 064 U 072 U 037 U 68 U 23 U 0088 U 39 02 029 012 U 0093 U 22 027 0088 U 067ND ND 2 084 13 37 ND 192 065 139 017 034 134 137 ND 307

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 80821 25 1

82 80 72 62 62mgkgmgkg mgkg mgkgmgkg mgkg mgkgmgkg mgkg

EPA 8082 EPA 8082 EPA 8082

mgkg mgkg mgkg mgkg

164

1 20 1 1 162 24 73 80 73

mgkg mgkg mgkg

Page 15 of 30

AR103786

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpL-16 6-8 L-16 8-10 L-17 2-4 L-17 4-6 L-17 6-8

020805ENSATENSAT ENSAT ENSAT ENSAT

020805020805 020805ENSATENSAT ENSAT ENSAT

SolidSolidSolidSolid

ENSATSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

ENSAT

SolidSubsurface SoilSubsurface Soil Subsurface Soil

SolidSolid Solid Solid

ENSAT020805 020805

Subsurface Soil

020905 020905 020905 020905 020905

L-08 2-4 L-08 4-6L-16 4-6Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump

L-17 8-10 S-6-2005 S-7-2005 L-08 6-8L-07 4-6 L-07 6-8L-07 2-4L-09 6-8 dup L-17 2-4 dup

020805 020805 020805 020905ENSAT ENSAT ENSAT

Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSolid Solid

Subsurface SoilSolidSolid Solid Solid

Subsurface Soil

Duplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 018 U01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 018 U01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 018 U

033 01 U 081 U 1 U 092 U 11 U 074 U 012 U 034 016 U 016 U 015 U 83 4 018 U01 U 01 U 081 U 1 U 092 U 11 U 074 U 012 U 012 U 016 U 016 U 015 U 083 U 079 U 02

044 01 U 081 U 1 U 092 U 11 U 074 U 034 13 018 022 016 4 13 067021 01 U 081 U 1 U 092 U 11 U 074 U 015 037 016 U 016 U 015 U 21 21 018 U098 ND ND ND ND ND ND 049 201 018 022 016 144 191 087

EPA 8082 EPA 8082 EPA 8082EPA 8082EPA 8082EPA 8082 EPA 8082EPA 80821 1 1 10 10

677768mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg

EPA 8082 EPA 8082 EPA 8082

mgkg

1EPA 8082EPA 8082

1

mgkg67 59

EPA 8082 EPA 80821 1 1

77 74 72 73 79 791

60 58 8177mgkgmgkg mgkg

Page 20 of 30

AR103787

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer DumpS-9-2005 L-11 10-12S-8-2005 L-11 4-6L-15 10-12 L-15 2-4 L-11 2-4L-15 4-6

020905020905020905 020905 020905 020905 021005021005 021005020905 021005020905ENSAT ENSAT ENSAT ENSAT ENSAT

Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSolidSolid Solid SolidSolid Solid

DuplicateDuplicate

020905

L-14 4-6Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer DumpSauer Dump

L-15 8-10L-15 6-8 L-11 6-8L-14 6-8L-14 2-4L-08 4-6 dup L-07 2-4 dup

020905ENSAT ENSATENSATENSAT ENSAT ENSATENSAT ENSATENSAT

Subsurface SoilSubsurface SoilSolidSolid Solid Solid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr25 U 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U25 U 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U25 U 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U25 U 37 13 U 0076 U 28 U 45 011 U 0085 U 023 017 U 098 059 021 04412 088 U 13 U 0076 U 28 U 093 U 011 U 0085 U 0079 U 017 U 021 U 023 U 013 U 012 U24 12 17 0076 U 38 10 011 U 0085 U 062 024 29 22 074 1416 43 28 0076 U 15 47 011 U 0085 U 013 U 017 U 067 088 018 03452 20 198 ND 53 192 ND ND 085 024 455 367 113 218

EPA 8082EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 80821 2 2 11 11 50 10 1

7469 61 7258mgkg

41 6462mgkg

33 7410 10

EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082EPA 8082EPA 8082150

80 68 7156mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg

Page 25 of 30

AR103788

Table A2bSubsurface Soil Analytical Data - 2005Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-12 2-4 L-12 4-6L-12 10-12

L-11 8-10 dup

021005 021005021005 021005 021005 021005 021005021005 021005 021005 021005 021005021005ENSATENSAT ENSATENSATENSAT

Subsurface SoilSubsurface Soil Subsurface SoilSubsurface SoilSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface SoilSolidSolid Solid Solid Solid Solid SolidSolid Solid

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpL-12 6-8 S-11-2005 S-12-2005L-13 4-6 L-13 6-8 L-13 8-10 S-10-2005L-12 8-10 L-13 2-4L-11 8-10 M-08 2-4 M-08 4-6

L-12 2-4 dup L-11 4-6 dup

030905 030905ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSAT ENSAT ENSATENSAT

Solid SolidSolid Solid Solid SolidDuplicateDuplicate Duplicate

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U024 1 065 37 24 08 16 039 10 62 071 015 041 056 U 076 U017 U 04 U 024 U 12 U 056 U 017 U 022 U 011 U 11 U 095 U 025 U 012 U 017 U 056 U 076 U08 38 25 14 83 26 25 08 15 15 28 067 13 056 U 076 U026 12 095 5 3 15 12 12 13 43 084 022 033 056 U 076 U13 6 41 227 137 49 53 239 38 255 435 104 204 ND ND

EPA 8082 EPA 8082 EPA 8082EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 808222 25 1

6872 72 70 61 70 70 69 80 57mgkgmgkg mgkg mgkg mgkg

EPA 8082EPA 8082 EPA 8082 EPA 808210 101 52 10 1 1

6580 58 7373mgkg mgkgmgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkg

Page 30 of 30

AR103789

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0023 U 00082 J 0025 J 0033 U 0031 U 0029 U 0014 J 0023 J 0029 UAcetonitrile nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nrBenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nrBromodichloromethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UBromoform 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UBromomethaneMethyl bromide 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U2-Butanone (Methyl Ethyl Ketone) 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Un-Butylbenzene nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nrCarbon Disulfide 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UCarbon Tetrachloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChloroethaneEthyl chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether nr nr nr nr nr nr nr nr nrChloroform 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChloromethaneMethyl chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UChloroprene nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nrCyclohexane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UCyclohexane Butyl- nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dibromoethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U14-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UDichlorodifluoromethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U11-Dichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U11-Dichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Ucis-12-Dichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Utrans-12-Dichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U12-Dichloroethene (Total) nr nr nr nr nr nr nr nr nrDichloromethane nr nr nr nr nr nr nr nr nr12-Dichloropropane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichloropropane nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Utrans-13-Dichloropropene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg

1 1 1 11 1 1 1SW846 8260B SW846 8260B SW846 8260BSW846 8260B SW846 8260B SW846 8260B SW846 8260B SW846 8260B

TOC TOC TOCno no no TOC TOC TOCyes - PCBs only yes - PCBs only

no no no no noyes - PCBs only yes - PCBs only yes - PCBs only yes - PCBs onlyyes - PCBs only yes - PCBs only yes - PCBs only yes - PCBs onlyyes - PCBs only yes - PCBs only yes - PCBs only yes - PCBs only

no no nono no no no no noyes - lead only yes - lead only

no no no no noyes - lead only yes - lead only yes - lead only yes - lead onlyyes - lead only yes - lead only yes - lead only yes - lead onlyyes - lead only yes - lead only yes - lead only yes - lead only

no no noyes yes yes no no nono no

yes yes yes yes yesyes yes no noyes yes no noyes yes yes yes

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

SW846 8260B1

Solid

mgkg

yesyes

yes - lead onlyno

yes - PCBs onlyno

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

Page 1 of 15

AR103790

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nrEthylbenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nrHexachlorobutadiene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UHexane nr nr nr nr nr nr nr nr nr2-Hexanone 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nrIsopropylbenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 Up-Isopropyl Toluene nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nrMethyl Acetate 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UMethylcyclohexane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nrMethylene Chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1-Methyl-indan nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether 00057 U 00075 U 00011 J 000068 J 00078 U 00073 U 00061 U 00083 U 00073 UNaphthalene 0039 J 0063 J 14 U 0074 J 037 J 11 U 083 U 11 U 12 UNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nrStyrene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1112-Tetrachloroethane nr nr nr nr nr nr nr nr nr1122-Tetrachloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UTetrachloroethene 00015 J 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nrToluene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr124-Trichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U111-Trichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U112-Trichloroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UTrichloroethene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U11 2 - Trichloro -1 2 2 -trifluoroethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 UTrichlorofluoromethane 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U123-Trichloropropane nr nr nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nrVinyl Acetate nr nr nr nr nr nr nr nr nrVinyl chloride 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U m+p-Xylenes nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nrXylenes (Total) 0017 U 0023 U 003 U 0025 U 0023 U 0022 U 0018 U 0025 U 0022 U

1 1 11 1 1 1SW846 8260B SW846 8260BSW846 8260B SW846 8260B SW846 8260B SW846 8260BSW846 8260B

mgkg

SW846 8260B1

SW846 8260B1

mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkg

Page 2 of 15

AR103791

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

SVOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 0045 J 0048 J 14 U 025 J 15 11 U 083 U 11 U 12 UAcenaphthylene 0079 J 099 UJ 14 U 0028 J 0027 J 11 U 083 U 11 U 12 UAcetophenone 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UAnthracene 015 J 0087 J 14 U 031 J 27 11 U 083 U 11 U 12 UAtrazine 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UBenzaldehyde 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UBenzo(a)Anthracene 045 J 025 J 0077 J 077 J 63 0033 J 0039 J 11 U 12 UBenzo(a)Pyrene 03 J 017 J 14 U 049 J 76 11 U 0025 J 11 U 12 UBenzo(b)fluoranthene 029 J 016 J 008 J 065 J 85 11 U 0023 J 11 U 12 UBenzo(ghi)Perylene 007 J 0061 J 14 U 019 J 17 002 J 0025 J 11 U 12 UBenzo(k)fluoranthene 012 J 0069 J 14 U 027 J 3 11 U 083 U 11 U 12 UBenzylbutylphthalateButylbenzylphthalate 0089 J 051 J 14 U 0087 J 11 U 11 U 083 U 11 U 12 U11-Biphenyl 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Bromophenyl-phenylether 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UCaprolactam 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UCarbazole 0056 J 099 UJ 14 U 019 J 11 11 U 083 U 11 U 12 U4-Chloroaniline 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Chloroethoxy)Methane 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Chloroethyl)Ether 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Chloroisopropyl)Ether nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Chloronaphthalene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Chlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Chlorophenyl-phenylether 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UChrysene 054 J 03 J 0087 J 087 J 69 004 J 006 J 11 U 12 UDibenzo(ah)Anthracene 0022 J 099 UJ 14 U 11 U 04 J 11 U 083 U 11 U 12 UDibenzofuran 0025 J 0032 J 14 U 0071 J 049 J 11 U 083 U 11 U 12 U12-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U13-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U14-Dichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U33-Dichlorobenzidine 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U24-Dichlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDiethylphthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U24-Dimethylphenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDimethyl Phthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDi-n-Butylphthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U46-Dinitro-2-Methylphenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U24-Dinitrophenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U24-Dinitrotoluene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U26-Dinitrotoluene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UDi-n-Octyl Phthalate 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 Ubis(2-Ethylhexyl)Phthalate 026 J 076 J 14 U 074 J 11 U 17 J 083 U 11 U 12 UFluoranthene 058 J 036 J 14 U 11 nr 11 U 0048 J 11 U 12 UFluorene 0045 J 099 UJ 14 U 013 J 089 J 11 U 083 U 11 U 12 UHexachlorobenzene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UHexachlorobutadiene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UHexachlorocyclopentadiene 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UHexachloroethane 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UIndeno(123-cd)Pyrene 0099 J 0059 J 14 U 022 J 21 11 U 083 U 11 U 12 UIsophorone 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Methylnaphthalene 0036 J 0058 J 14 U 0032 J 012 J 11 U 083 U 11 U 12 U2-Methylphenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Methylphenol 0026 J 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UMethylMercury nr nr nr nr nr nr nr nr nrNaphthalene 0039 J 0063 J 14 U 0074 J 037 J 11 U 083 U 11 U 12 U2-Nitroaniline 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U3-Nitroaniline 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 U4-Nitroaniline 0025 J 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UNitrobenzene 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U2-Nitrophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U4-Nitrophenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UN-Nitroso-Di-n-Propylamine 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UN-Nitrosodiphenylamine 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U22-Oxybis(1-Chloropropane) 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UPentachlorophenol 38 U 48 UJ 66 U 55 U 52 U 51 U 4 U 54 U 57 UPhenanthrene 054 J 039 J 0083 J 14 nr 0039 J 0049 J 11 U 12 UPhenol 0048 J 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 UPyrene 074 J 035 J 01 J 15 17 0046 J 0097 J 11 U 12 U124-Trichlorobenzene 00057 U 00075 U 001 U 00082 U 00078 U 00073 U 00061 U 00083 U 00073 U245-Trichlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U246-Trichlorophenol 077 U 099 UJ 14 U 11 U 11 U 11 U 083 U 11 U 12 U

mgkg mgkgmgkg mgkg mgkg mgkg

2 22 2 2 2SW846 8270C SW846 8270C SW846 8270CSW846 8270C SW846 8270C SW846 8270C SW846 8270C SW846 8270C

2 2

mgkg mgkg

SW846 8270C2

mgkg

Page 3 of 15

AR103792

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium III nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrLead 626 13100 752 770 935 323 76 249 223 1350 180 109 118 159 1320Magnesium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrTin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrCyanide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

mgkg mgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkgmgkg mgkg mgkg mgkg

0 41 1 1 11 1 4 150 1 2 1EPA 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B EPA 6010B EPA 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B

mgkg

SW846 6010B2

Page 4 of 15

AR103793

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Solid SolidSolid Solid SolidSolid Solid Solid SolidSolid Solid Solid SolidSubsurface Soil Subsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 121907 121907012407 012407 012407 121907 121907 121907012407 012407 012407 012407 012407

5241545 5241546 5241547 C7L210240032 C7L210240031C7A250145004 C7A250145005 C7A250145007 C7A250145008 C7A250145009 C7A250145010 C7A250145012 C7A250145013 C7L210240024HS-SB-04-11 HS-SB-04-4HS-SB-01-1 HS-SB-01-10 HS-SB-02-08 HS-SB-03-08DG-SB06-2 DG-SB07-2 DG-SB08-2 DG-SB09-2

Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Solid

Sauer Dump Sauer DumpDG-SB02-2 DG-SB03-2 DG-SB04-2 DG-SB05-2Sauer Dump

Solid

Sauer DumpDG-SB01-2

C7A250145003

012407Malcolm PirnieSubsurface Soil

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrbeta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrdelta-BHC nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-BHC (Lindane) nr nr nr nr nr nr nr nr nr nr nr nr nr nr nralpha-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrgamma-Chlordane nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrChlordane total nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDD nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDE nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr44-DDT nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrDieldrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan I nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan II nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndosulfan sulfate nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin aldehyde nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrEndrin ketone nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrHeptachlor epoxide nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrMethoxychlor nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrToxaphene nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrAroclor-1016 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 0059 U 980 U 55 U 45 U 38 U 49 U 990 UAroclor-1221 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 0059 U 980 U 86 U 70 U 6 U 49 U 990 UAroclor-1232 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 084 980 U 55 U 45 U 38 U 49 U 990 UAroclor-1242 0039 U 005 U 0031 J 0056 U 0053 U 0053 U 0041 U 0034 J 0059 U 980 U 870 1700 120 49 U 990 UAroclor-1248 0039 U 005 U 0068 U 0056 U 0053 U 0053 U 0041 U 0056 U 0059 U 9400 55 U 45 U 38 U 49 U 22000Aroclor-1254 071 16 0063 J 035 0053 U 012 0041 U 0098 14 44000 1000 1600 130 260 49000Aroclor-1260 063 064 0034 J 02 0043 J 006 003 J 005 J 0059 U 980 U 900 1600 130 49 U 990 UTotal PCBs 134 224 0128 055 0043 018 003 0182 224 53400 2770 4900 380 260 71000

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagTOC 32500 nr nr 13900 158000 nr

mgkg mgkgmgkg mgkgmgkg mgkg

9 not samplednot sampled 22 not sampledEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn

ugkg ugkgmgkg mgkg ugkg ugkgmgkg mgkg ugkg ugkgmgkg mgkg mgkg mgkg

0 251 1 5 11 1 25 101 1 1 1SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

1

mgkg

SW846 8082

Page 5 of 15

AR103794

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid Solid Solid SolidSolid Solid SolidSolid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieSubsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 122007 122007 122007 122007122007 122007121907 122007 122007 122007122007 122007 122007 122007

C7L210240016 C7L210240013 C7L210240020 C7L210240002 C7L210240001 C7L210240004 C7L210240005 C7L210240009 C7L210240010 C7L210240011C7L210240021 C7L210240019C7L210240033 C7L210240035 C7L210240015HS-SB-12-18-20HS-SB-12-09-10 HS-SB-12-14-15HS-SB-07-09-10 HS-SB-07-13-15 HS-SB-08-09-10 HS-SB-09-04-05 HS-SB-09-08-10 HS-SB-09-135-15HS-SB-05-16 HS-SB-06-14 HS-SB-10-08-10 HS-SB-10-11-12 HS-SB-11-08-09 HS-SB-11-09-10

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

448 647 621 217 736 473 178 418 76 nr 2760 221 382 2590 695nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

mgkg mgkg mgkg mgkgmgkgmgkg mgkg mgkgmgkg mgkgmgkgmgkg mgkg mgkg mgkg

8 0 1 62 00 01 not sampled1 0 1 1SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B SW846 6010B not sampled SW846 6010B

Page 9 of 15

AR103795

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteTOC

Solid Solid Solid SolidSolid Solid SolidSolid SolidSolid Solid Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieSubsurface Soil

Malcolm PirnieMalcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie121907 122007 122007 122007 122007122007 122007121907 122007 122007 122007122007 122007 122007 122007

C7L210240016 C7L210240013 C7L210240020 C7L210240002 C7L210240001 C7L210240004 C7L210240005 C7L210240009 C7L210240010 C7L210240011C7L210240021 C7L210240019C7L210240033 C7L210240035 C7L210240015HS-SB-12-18-20HS-SB-12-09-10 HS-SB-12-14-15HS-SB-07-09-10 HS-SB-07-13-15 HS-SB-08-09-10 HS-SB-09-04-05 HS-SB-09-08-10 HS-SB-09-135-15HS-SB-05-16 HS-SB-06-14 HS-SB-10-08-10 HS-SB-10-11-12 HS-SB-11-08-09 HS-SB-11-09-10

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 48 U 210 U 43 U 28 U 200 U 410 U 51 U 18 U 33 U 220 U 43 U 590 U 6200 U 59 U39 U 690 1100 43 U 180 1300 5500 51 U 51 33 U 6000 43 U 6700 290000 15039 U 660 210 U 43 U 240 1300 2600 740 18 U 33 U 220 U 43 U 2100 49000 39 J39 U 48 U 1900 43 U 28 U 200 U 410 U 51 U 110 33 U 2800 43 U 590 U 6200 U 59 U

1350 3000 420 2600 8100 740 161 8800 8800 339000 189

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 1160 U 11100 120000 52100 nr nr nr nr nr nr nr nr 140000 nr

mgkg mgkg mgkg mgkgmgkgmgkg mgkg mgkgmgkg mgkgmgkgmgkg mgkg mgkg mgkg

not sampled not sampled not sampled 8not sampled not samplednot sampled 9 not sampled not sampled9 22 9 not sampledEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn

ugkg ugkg ugkg ugkgugkgugkg ugkg ugkgugkg ugkgugkgugkg ugkg ugkg ugkg

5 0 10 12510 00 0 00 05 0 0 5SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

Page 10 of 15

AR103796

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Solid SolidSolid Solid Solid SolidSolid SolidSubsurface Soil Subsurface Soil

Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie122107 122107

Malcolm Pirnie Malcolm Pirnie122107 122107122007 122007 122007 122007 122007 122007 122007 122007

5244089 5244090 52440995244091 5244092 52441005244093 5244095 5244096 5244094 5244097 5244098HS-SB-15-19-20HS-SB-15-13-15 HS-SB-15-17-18HS-SB-13-09-10 HS-SB-13-14-15 HS-SB-13-17-18 HS-SB-14-19-20 HS-SB-15-09-10HS-SB-13-19-20 HS-SB-14-09-10

Sauer Dump Sauer DumpHS-SB-14-14-15 HS-SB-14-16-17

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

10500 1770 94 973 858 389 176 855 1190 573 569 922nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

mgkgmgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg

1 11 1 1 1 11 1EPA 6010B EPA 6010B

10 1 1EPA 6010B EPA 6010BEPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B

Page 14 of 15

AR103797

Table A2cSubsurface Soil Analytical Data - 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteTOC

Solid SolidSolid Solid Solid SolidSolid SolidSubsurface Soil Subsurface Soil

Solid Solid Solid SolidSubsurface Soil Subsurface SoilSubsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil Subsurface Soil

Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm PirnieMalcolm Pirnie122107 122107

Malcolm Pirnie Malcolm Pirnie122107 122107122007 122007 122007 122007 122007 122007 122007 122007

5244089 5244090 52440995244091 5244092 52441005244093 5244095 5244096 5244094 5244097 5244098HS-SB-15-19-20HS-SB-15-13-15 HS-SB-15-17-18HS-SB-13-09-10 HS-SB-13-14-15 HS-SB-13-17-18 HS-SB-14-19-20 HS-SB-15-09-10HS-SB-13-19-20 HS-SB-14-09-10

Sauer Dump Sauer DumpHS-SB-14-14-15 HS-SB-14-16-17

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

460 U 120 U 88 U 41 U 42 U 63 U 43 U 4 U 40 U 21 U 79 U 4 U720 U 190 U 140 U 65 U 66 U 100 U 67 U 64 U 62 U 33 U 12 U 63 U460 U 120 U 88 U 41 U 42 U 63 U 43 U 4 U 40 U 21 U 79 U 4 U460 U 11000 88 U 41 U 42 U 4200 43 U 39 40 U 21 U 79 U 4 U

7200 120 U 700 64 J 39 63 U 45 4 U 2400 1400 340 17 J4900 3800 290 J 41 U 66 1600 63 95 J 1700 840 410 14 J2100 J 3000 180 J 41 U 42 790 34 94 J 2200 820 100 59 J

14200 17800 1170 6 147 6590 142 579 6300 3060 850 369

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr

mgkgmgkg mgkg mgkgmgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg

EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd KahnEPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn EPA Lloyd Kahn

ugkgugkg ugkg ugkgugkg ugkg ugkg ugkg ugkg ugkgugkg ugkg

1 1010 1 5 2 120 10SW846 8082 SW846 8082

100 1 1SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 8082

Page 15 of 15

AR103798

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 001 U 001 U 001 U 001 U 0021 B 0018 B 0019 B 0021 B 0022 B 0016 B 0022 B 0019 B 0012 BAcetonitrile nr nr nr nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBromoform 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBromomethaneMethyl bromide 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Un-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide 0005 U 0005 U 0042 0005 U 001 U 001 U 0001 J 0003 J 001 U 001 U 001 U 0003 J 001 UCarbon Tetrachloride 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChlorobenzene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChloroethaneEthyl chloride 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChloromethaneMethyl chloride 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChloroprene nr nr nr nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromoethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrDichlorodifluoromethane nr nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U12-Dichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U11-Dichloroethene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ucis-12-Dichloroethene nr nr nr nr nr nr nr nr nr nr nr nr nrtrans-12-Dichloroethene 0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr nr nr12-Dichloroethene (Total) nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U13-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Utrans-13-Dichloropropene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

noyes

not reported

yesyesyes

mgL

no

1NA

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

yes yes yes yes yes yes yes yesyes yes yes yesyes yes yes yes yes yes yesyes yes yes yes yes

yes yes yes yes yes yes yes yes yes yes yes yesno no no no no no no no no no no noyes yes yes yes yes yes yes yesyes yes yes yes

no no no no no no nono no no no no

not reported not reported not reported1 1 1 1 1 1 1 11 1 1 1

NA NA NA NA NA NA NANA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 1 of 28

AR103799

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr nr nr nr nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nr nr nr nr nrIsopropylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrp-Isopropyl Toluene nr nr nr nr nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr nr nr nr nr nrMethylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 MethyMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 0005 U 0005 U 0005 U 0005 U 002 B 0002 JB 0009 JB 0008 JB 0006 JB 0001 JB 0003 JB 0004 JB 0002 JB1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrStyrene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U1112-Tetrachloroethane nr nr nr nr nr nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UTetrachloroethene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr111-Trichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U112-Trichloroethane 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UTrichloroethene 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr nr nr nr nr nrTrichlorofluoromethane nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr nr nrVinyl chloride 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U m+p-Xylenes nr nr nr nr nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U

mgL mgL mgL mgLmgL mgL mgL mgLmgL mgL mgL mgLNA NA NA NANA NA NA NANA NA NA NA1 1 1 11 1 1 11 1 1 1

not reported not reported not reported

mgL

not reported1

NA

Page 3 of 28

AR103800

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 001 U 001 U 002 U 001 U 001 U 0004 J 001 U 001 U 001 U 001 U 001 U 0007 J 001 UAcenaphthylene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UAcetophenone nr nr nr nr nr nr nr nr nr nr nr nr nrAnthracene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UAtrazine nr nr nr nr nr nr nr nr nr nr nr nr nrBenzaldehyde nr nr nr nr nr nr nr nr nr nr nr nr nrBenzo(a)Anthracene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(a)Pyrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(b)fluoranthene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(ghi)Perylene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzo(k)fluoranthene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UBenzylbutylphthalateButylbenzylphthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 U11-Biphenyl nr nr nr nr nr nr nr nr nr nr nr nr nr4-Bromophenyl-phenylether 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UCaprolactam nr nr nr nr nr nr nr nr nr nr nr nr nrCarbazole nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Chloroaniline 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Chloroethoxy)Methane 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Chloroethyl)Ether 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Chloroisopropyl)Ether 001 U 001 U 002 U 001 U nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Chloronaphthalene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Chlorophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Chlorophenyl-phenylether 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UChrysene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDibenzo(ah)Anthracene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDibenzofuran 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 U12-Dichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U13-Dichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U14-Dichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U33-Dichlorobenzidine 002 U 002 U 004 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U24-Dichlorophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDiethylphthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U24-Dimethylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDimethyl Phthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDi-n-Butylphthalate 0007 JB 0005 JB 0004 JB 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 JB 001 U46-Dinitro-2-Methylphenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U24-Dinitrophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U24-Dinitrotoluene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U26-Dinitrotoluene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UDi-n-Octyl Phthalate 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 Ubis(2-Ethylhexyl)Phthalate 001 U 001 U 002 U 001 U 001 U 0003 JB 0001 JB 0006 JB 0023 B 0015 B 0032 B 0004 JB 001 UFluoranthene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0002 J 001 UFluorene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 UHexachlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UHexachlorobutadiene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UHexachlorocyclopentadiene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UHexachloroethane 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UIndeno(123-cd)Pyrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UIsophorone 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Methylnaphthalene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Methylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Methylphenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UMethylMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Nitroaniline 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U3-Nitroaniline 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U4-Nitroaniline 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 UNitrobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Nitrophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U4-Nitrophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 UN-Nitroso-Di-n-Propylamine 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UN-Nitrosodiphenylamine 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U22-Oxybis(1-Chloropropane) nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UPentachlorophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 UPhenanthrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UPhenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UPyrene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 0001 J 001 U124-Trichlorobenzene 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U245-Trichlorophenol 005 U 005 U 01 U 005 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U

1NA

mgL

1 2 1 1 1 1 1 1 1 1 1 1NA NA NA NA NA NA NA NA NA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgLmgL mgL mgL mgL

Page 4 of 28

AR103801

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

246-Trichlorophenol 001 U 001 U 002 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U

Page 5 of 28

AR103802

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 957 089 J 735 0232 JB 00352 B 30 301 734 682 183 179 948 116Antimony 006 U 006 U 006 U 006 U 00169 U 00359 B 00169 U 00169 U 00169 U 00169 U 00169 U 00169 U 00169 UArsenic 001 U 00145 R 00303 R 001 U 00022 U 00688 00047 B 00359 00169 00125 00022 U 00246 00022 UBarium 0628 02 U 0617 02 U 00029 U 144 0283 752 0804 0769 0155 B 0953 00899 BBeryllium 0005 U 0005 U 0008 0005 U 00004 B 00012 B 00004 U 00099 00176 00026 B 00004 U 00268 00004 UCadmium 0005 U 0005 J 0005 U 0005 U 0001 U 00065 0001 U 00015 B 00522 0007 B 0001 U 00382 0001 UCalcium 572 6275 347 5 U 015 B 364 240 235 184 129 105 110 374Chromium 001 U 001 U 0332 001 U 00045 U 0227 00302 0802 0761 0162 00154 0559 00045 UChromium III nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 005 U 005 U 005 U 005 U 00027 U 00365 B 00036 B 00769 B 017 00328 B 00031 B 0375 00328 BCopper 0025 U 0025 U 114 0025 U 0005 B 0845 00725 0722 0679 039 0136 073 00382Iron 3112 117 25325 01 U 00148 B 157 204 254 164 78 715 108 733Lead 00297 J 0005 U 0546 0005 U 00057 276 012 26 141 055 00501 0973 00331Magnesium 168 120 5675 5 U 00408 U 70 499 144 159 127 103 129 285Manganese 1324 0342 194 0015 U 00047 U 181 0864 287 914 149 0581 376 39Mercury 00002 U 00002 U 00058 00002 U 00001 U 00022 000026 00001 U 00001 U 00001 U 00001 U 0013 B 00001 UNickel 004 U 004 U 0333 004 U 00054 U 0213 00208 B 0604 111 0198 00133 B 0713 00109 BPotassium 373 J 402 J 335 J 5 U 0242 U 221 196 446 545 387 285 417 744Selenium 0005 U 0005 U 0005 U 0005 U 00036 U 00081 00038 B 00149 0018 U 00036 U 00036 U 00048 B 00036 USilver 001 U 001 U 001 U 001 U 00025 U 00027 B 00025 U 00147 00025 U 00026 B 00025 U 00137 00025 USodium 375 J 760 J 110 J 5 U 0544 B 723 921 636 579 545 345 723 785Thallium 001 U 001 U 001 U 001 U 00017 U 0003 B 00017 U 00125 B 00085 U 00085 U 00085 U 00085 U 00017 UTin 004 U 004 U 004 U 004 U nr nr nr nr nr nr nr nr nrVanadium 005 U 005 U 0869 005 U 00028 U 03 00539 0247 0278 00774 00054 B 0253 0006 BZinc 0197 002 U 541 002 U 00022 U 785 0449 558 112 239 0193 108 0147Cyanide 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 00186 001 U 0015 001 U 001 U

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr

1

NAmgL

1 1 1 1 11 1 1 1NA NA NA NA NA NA NANA NA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

1 1 1

Page 6 of 28

AR103803

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Surface WaterAqueous

Sauer DumpA-1

A-1 PondCA 876

MCC224

062785NUS

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-22

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpA-2 A-3 A-4 FB-1 SW-01 SW-02 SW-04 SW-08 SW-10 SW-15 SW-18

A-2 Marsh-River-Drain A-3 Channel A-4 BlankCA 879 CA 880 CA 881 CHH28 CHH04 CHH12 CHH14 CHH16 CHH18 CHH08 CHH20 CHH24

MCC225 MCB975 MCB976 MCGX27 MCGX15 MCGX17 MCGX08 MCGX19 MCGX23

120892 120892 120892 120892 120892 120892 120892062785 062785 062785 120892 120892NUS NUS NUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Surface Water Surface Water Water Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous

Field Blank

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 Ualpha-BHC 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 00000074 J 000005 U 0000065 J 000005 U 000005 Ubeta-BHC 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 Udelta-BHC 000005 U 000005 U 00005 U 000005 U 00000014 J 000005 U 000005 U 000005 U 00000024 JB 000005 U 000005 U 000005 U 000005 Ugamma-BHC (Lindane) 000005 U 000005 U 00005 U 000005 U 000005 U 00000036 J 000005 U 000005 U 00000039 J 000005 U 000005 U 000005 U 000005 Ualpha-Chlordane nr nr nr nr 000005 U 00000011 J 000005 U 000005 U 000005 U 000005 U 00000012 J 000005 U 000005 Ugamma-Chlordane nr nr nr nr 000005 U 000005 U 0000001 J 000005 U 000005 U 00000024 J 000005 U 000005 U 000005 UChlordane total 00005 U 00005 U 0005 U 00005 U nr nr nr nr nr nr nr nr nr44-DDD 00001 U 00001 U 0001 U 00001 U 00001 U 00000022 J 00001 U 00001 U 00000031 J 00001 U 00001 U 00001 U 00001 U44-DDE 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00000027 J 00000024 J 00000018 J 00001 U 00001 U 00001 U 00001 U44-DDT 00001 U 00001 U 0001 U 00001 U 00001 U 00000032 J 00000022 J 00000032 J 00001 U 00001 U 00001 U 00001 U 00001 UDieldrin 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 UEndosulfan I 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 UEndosulfan II 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00000017 J 00001 U 00001 UEndosulfan sulfate 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00000024 J 00001 U 00001 U 00001 U 00001 UEndrin 00001 U 00001 U 0001 U 00001 U 00001 U 00000017 J 00000016 J 00001 U 00000029 J 00000012 J 00001 U 00001 U 00001 UEndrin aldehyde 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00000027 J 00000043 JEndrin ketone 00001 U 00001 U 0001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 UHeptachlor 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 UHeptachlor epoxide 000005 U 000005 U 00005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 U 000005 UMethoxychlor 00001 U 00001 U 0001 U 00001 U 00005 U 00005 U 00005 U 00005 U 00005 U 00005 U 00005 U 00005 U 00000041 JToxaphene 0001 U 0001 U 001 U 0001 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 UAroclor-1016 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1221 00001 U 00001 U 0001 U 00001 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 UAroclor-1232 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1242 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1248 00005 U 00005 U 00005 U 00005 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UAroclor-1254 0001 U 0001 U 00299 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 000059 J 000017 JAroclor-1260 0001 U 0001 U 001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 U 0001 UTotal PCBs 00299 000059 000017

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

mgLNA

1 1 1 1 1 11 1 1 1NA NA NA NA NA NA NANA NA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 7 of 28

AR103804

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0016 B 0015 B 0018 B 001 U 0008 B 001 B 001 U nr nr nr nr nr 00104 B 00082 B

nr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

yes yes yes no no no noyes yes yes yes no yes yesyes no no no noyes yes yes yes yesno no no yes

yes yes no noyes yes yes yes CN only CN onlyyes yes yes yesno no no nono no no no yesno no no no yes

yes yes yes PCBs PCBs PCBs PCBsyes yes no no PCBs yes yesno no no no nono no no no nono no no no

EPA 8260 EPA 82601 1 1 1 1 1 1 Not Reported Not Reported

NA NA NANA NA NA NA NANAmgL mgL mgL mgLmgL mgL mgL mgL mgL

Holding time exceeded

Page 8 of 28

AR103805

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr0003 JB 0002 JB 0004 JB 0002 JB 0003 JB 0001 JB 0004 JB nr nr nr nr nr 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 U001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U 001 U 001 U nr nr nr nr nr 001 U 001 U

Holding time exceededmgL mgLmgL mgL mgLmgL mgL mgL mgLNA NANA NA NANA NA NA NA

Not Reported Not Reported1 1 11 1 1 1EPA 8260 EPA 8260

Page 10 of 28

AR103806

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr 004442 B 003135 B005 U 001 U 005 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 0001 J 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0009 JB 0012 B 0053 B 0025 B 0039 B nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U nr nr nr nr nr nr nr

EPA 625EPA 6251 11 1 1

NA NA NA NANA NA NAmgL mgL mgL mgL mgL mgL mgL

Incomplete lab report No other SVOCs detected

Incomplete lab report No other SVOCs detected

Page 11 of 28

AR103807

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

246-Trichlorophenol

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr

Page 12 of 28

AR103808

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0192 B 112 0116 B 176 0157 B nr nr 05 U 365 784 239 056 nr nr00169 U 00169 U 00169 U 00169 U 00169 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr00022 U 00138 00042 B 00022 U 00022 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr00553 B 00774 B 00352 B 00325 B 00437 B nr nr 05 U 05 U 05 U 052 05 U nr nr00004 B 00004 U 00004 U 00004 U 00004 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr0001 U 0001 U 0001 U 0001 U 0001 B nr nr 005 U 005 U 005 U 005 U 005 U nr nr271 356 292 594 309 nr nr 927 30 30 818 298 nr nr

00045 U 00059 B 00045 U 00207 00045 U nr nr 01 U 01 U 01 U 01 U 01 U nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

00027 U 00051 B 00027 U 00027 U 00027 U nr nr 01 U 01 U 01 U 01 U 01 U nr nr00122 B 0025 00099 B 00206 B 00123 B nr nr 01 U 01 U 01 U 01 U 01 U nr nr143 908 286 267 343 nr nr 2424 409 72 131 172 nr nr

00147 00538 00061 0017 00076 nr nr 025 U 025 U 025 U 025 U 025 U nr nr869 103 85 818 882 nr nr 449 175 18 793 10 nr nr

0223 149 0266 0119 0441 nr nr 067 025 035 039 025 nr nr00001 U 00001 U 00001 U 00001 U 00001 U nr nr 00029 U 00029 U 00029 U 00029 U 00029 U nr nr00054 U 00073 B 00054 U 00211 B 00054 U nr nr 01 U 01 U 01 U 01 U 01 U nr nr

71 122 908 352 833 nr nr 17 166 172 397 34 nr nr00036 U 00073 00036 U 00036 U 00036 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr00025 U 00025 U 00025 U 00025 U 00025 U nr nr 005 U 005 U 005 U 005 U 005 U nr nr114 113 977 609 109 nr nr 728 160 159 154 148 nr nr

00018 B 00017 U 00017 U 00085 U 00017 U nr nr 0025 U 0025 U 0025 U 0025 U 0025 U nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

00028 U 00046 B 00028 U 00062 B 00028 U nr nr 01 U 01 U 01 U 01 U 01 U nr nr00247 0124 00237 00848 0023 nr nr 05 U 05 U 05 U 05 U 05 U nr nr001 U 001 U 001 U 001 U 001 U nr nr nr nr nr nr nr 0005 U 0005 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 1 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 05 U 05 Unr nr nr nr nr nr nr nr nr nr nr nr 025 U 025 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 025 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 0002 U 0002 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 157nr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 Unr nr nr nr nr nr nr nr nr nr nr nr 1 U 1 Unr nr nr nr nr nr nr nr nr nr nr nr 0025 U 0025 Unr nr nr nr nr nr nr nr nr nr nr nr 01 U 01 Unr nr nr nr nr nr nr nr nr nr nr nr 005 U 005 U

1 1 1 1 1 1NA NA NANA NA NA NA NANA NA NA

mgL mgLmgL mgL mgL mgL mgLmgL mgL mgL mgL

Not Reported Not ReportedNA NA

mgL mgL

Page 13 of 28

AR103809

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

Sauer DumpSW-24 SW-25

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-26 SW-01 SW-02 SW-03 SW-04SW-29 SW-30 TB-1 TB-2 SW-05 FB-1 FB-2

CHH32 CHH22 CHH11 CHH29CHH10 CHH26 CHH06 A964248 A900929 A901007A964244 A964245 A964246 A964247MCGX25 MCGX06 MCGX30 MCGX21MCGX10 761255 761256 761257 M700304761253 761254 M700315

A900959 A901018120892 120892 120992 040496 040496120892 120892 120892 120892 100199040496 040496 040496 092999

HNUS HNUS HNUS HNUSHNUS HNUS HNUS MDE MDE MDEMDE MDE MDE MDESurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Surface Water WaterWater Water Surface Water Surface Water Water

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous AqueousTrip Blank Trip BlankDuplicate of SW-30 Duplicate of SW-25 Field BlankField Blank

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag000005 U 00000011 J 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U

00000029 JB 000005 U 000005 U 00000019 J 00000026 J nr nr nr nr nr nr nr U U000005 U 000005 U 000005 U 00000032 J 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr00001 U 00001 U 00001 U 00000016 J 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00000011 JB 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00000036 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U

0000002 J 00000011 J 00000019 J 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U00000028 J 00001 U 00000014 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U

00001 U 00001 U 00000024 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00000014 J 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00001 U00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr nr nr nr nr 00001 U 00016 B

000005 U 000005 U 000005 U 000005 U 000005 U nr nr nr nr nr nr nr 00001 U 00001 U000005 U 000005 U 000005 U 00000017 J 000005 U nr nr nr nr nr nr nr 00001 U 00001 U00005 U 00005 U 00005 U 00005 U 00005 U nr nr nr nr nr nr nr 00001 U 00001 U0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr 005 U 005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U0002 U 0002 U 0002 U 0002 U 0002 U nr nr U U U U U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U nr nr0001 U 0001 U 0001 U 0001 U 0001 U nr nr 02 U 05 U 04 U 02 U 04 U 0005 U 0005 U0001 U 0001 U 0001 U 0001 U 0001 U nr nr U U U U U 0005 U 0005 U

U U U U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 608 EPA 6081 1 1 1 1 Not reported Not reported

NA NA NANA NA NA NA NANA NA NA NAmgL mgLmgL mgL mgL mgL mgL mgLmgL mgL mgL mgL

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Incomplete lab report No PCBs detected

Page 14 of 28

AR103810

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00193 B 00123 B 0005 U 00086 B 00089 B 00082 B 00169 B 0008 B 0003 JB 00109 B 0005 U 001 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 001 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr 001 U nr nr 0005 U

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

yes yes yes yesyes yes yes yes noyes yes yes yesyes yes yes no noyes yes yes yes yes yes no no

CN only CN only CN only CN only CN onlyCN only CN only CN only CN only no no no noyes yes yes yesyes yes yes no noyes yes no no

yes yes yes yesyes no no no noyes yes yes yesno no no no nono no no no no no no yes - PCB Congeners

EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported 1Not Reported Not Reported Not Reported 1

NA NA NA NA NANA NA NA NA NA NA NAmgL mgL mgL mgL mgLmgL mgL mgL mgL mgL mgL mgL

Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 15 of 28

AR103811

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr 001 U nr nr 001 Unr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 001 Unr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 00073 0002 J 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr 001 U nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr 0005 U 0005 U 0005 U

nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 0005 U 0005 U 0005 Unr nr nr nr nr nr nr nr nr nr nr 0005 Unr nr nr nr nr nr nr nr nr nr nr 0005 U

001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U nr

Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceededmgL mgLmgL mgL mgL mgLmgL mgL mgL mgLmgL mgLNA NANA NA NA NANA NA NA NANA NA

Not Reported 1Not Reported Not Reported 1 Not ReportedNot Reported Not Reported Not Reported Not ReportedNot Reported Not ReportedEPA 8260EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260

Page 17 of 28

AR103812

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0002 J nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nrnr nr nr nr

001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U nr nr nr001 U nr nr nr

0003 JB nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr

0025 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr

0002 JB nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nrnr nr nr nr

001 U nr nr nr0025 U nr nr nr0025 U nr nr nr0025 U nr nr nr001 U nr nr nr001 U nr nr nr

0025 U nr nr nr001 U nr nr nr001 U nr nr nr001 U nr nr nr

0025 U nr nr nr00005 J nr nr nr0006 JB nr nr nr001 U nr nr nrnr nr nr nr

0025 U nr nr nr

EPA 625 EPA 625 EPA 625 EPA 625 EPA 625 EPA 625 EPA 625 EPA 625

NAmgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgL

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Page 18 of 28

AR103813

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

001 U nr nr nr

Page 19 of 28

AR103814

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 00018 J nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 02 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 006 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 001 U nr nr nr05 U 05 U 05 U 05 U 05 U 05 U 058 05 U 0208 nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 00001 J nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00006 J nr nr nr198 250 556 651 628 614 127 492 278 nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00011 JB nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00018 J nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 0025 U nr nr nr212 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0141 nr nr nr025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U 00013 JB nr nr nr608 626 10 126 1215 120 132 751 582 nr nr nr077 005 U 005 U 005 U 005 U 005 U 087 005 U 0661 nr nr nr

0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 0002 U 000012 J nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 0005 J nr nr nr292 35 612 897 888 626 103 1 U 258 E nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 0005 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 001 U nr nr nr130 153 152 1084 1120 1085 555 683 156 nr nr nr

0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 0025 U 001 U nr nr nr01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 00037 J nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 002 U nr nr nr

Not Reported Not Reported Not Reported Not Reported 1Not Reported Not Reported Not Reported Not ReportedNA NA NA NANA NA NA NA

mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 20 of 28

AR103815

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-2 SW-3 SW-4 SW-5SW-1 TB-1 TB-2 Trip Blank SW-1SW-6 SW-7 SW-8 SW-9

A900913 A901005 A900915 A901006 CTS24A900914 A901002 A901003 A901004 A900930 A901001 99121531M700311 M700312 M700313 M700301M700299 M700300 M700310 M700314

A900955 A901013 A901014 A901015A900954 A901016 A900956 A901017092999 092999 100199 092999 100199100199 100199 100199 092999 100199 092999 121599 081202

MDE MDE MDE MDE MDEMDE MDE MDE MDE MDE MDE MDE ENSATSurface Water Surface Water Surface Water Surface WaterSurface Water Surface Water Surface Water Water Surface WaterSurface Water Surface Water Water Water

Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous AqueousBackground Trip BlankTrip Blank Trip BlankDup Of SWSED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U U U U U U 000005 U00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr

nr nr nr nr 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nrnr nr nr nr nr nr nr nr 000005 U nr nr nr

0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00017 B 00015 B 00017 B 00001 U 00001 U 00001 U 00001 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 000005 U nr nr nr00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00001 U 00005 U nr nr nr005 U 005 U 005 U 005 U 005 U 005 U 005 U 005 U 0005 U nr nr nr

0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0002 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr

nr nr nr nr nr nr nr nr 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag272206046008870

129001260059901800798644

50600

EPA 608 EPA 608 EPA 608 EPA 608EPA 608 EPA 608 EPA 608 EPA 608Not reported Not reported Not reported Not reportedNot reported Not reported Not reported Not reported 1

NA NA NA NA NA NA NA NA NAmgL mgL mgL mgL mgLmgL mgL mgL mgL

EPA 1668ANANApgL

Page 21 of 28

AR103816

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-4 SW-5SW-2 SW-3 SW-A

SW-4 dup

081202081202 081202081202 081202ENSAT ENSAT ENSAT ENSAT ENSAT

Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous AqueousAqueous Aqueous Aqueous

Duplicate

Sauer Dump Sauer Dump Sauer Dump

011107 011107 011107

Sauer Dump

C7A130135016 C7A130135015 C7A130135018 C7A130135017DG-SW01-F (DISSOLVED) DG-SW01-T DG-SW02-F (DISSOLVED) DG-SW02-T

011107

Surface Water Surface Water Surface Water Surface WaterMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr 92 J nr 302nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr3 U nr 16 J nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

SW846 6010B SW846 6010B SW846 6010B SW846 6010B1 1 1 1

ugL ugL ugL ugL

SW846 6010B SW846 6010B SW846 6010B SW846 6010B1 1 1 1

ugL ugL ugL ugL

Page 27 of 28

AR103817

Table A4Surface Water Analytical Data - 1985 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (total)Dichlorobiphenyl (total)Trichlorobiphenyl (total)Tetrachlorobiphenyl (total)Pentachlorobiphenyl (total)Hexachlorobiphenyl (total)Heptachlorobiphenyl (total)Octachlorobiphenyl (total)Nonachlorobiphenyl (total)Decachlorobiphenyl (total)Total PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSW-4 SW-5SW-2 SW-3 SW-A

SW-4 dup

081202081202 081202081202 081202ENSAT ENSAT ENSAT ENSAT ENSAT

Surface Water Surface Water Surface Water Surface Water Surface WaterAqueous AqueousAqueous Aqueous Aqueous

Duplicate

Sauer Dump Sauer Dump Sauer Dump

011107 011107 011107

Sauer Dump

C7A130135016 C7A130135015 C7A130135018 C7A130135017DG-SW01-F (DISSOLVED) DG-SW01-T DG-SW02-F (DISSOLVED) DG-SW02-T

011107

Surface Water Surface Water Surface Water Surface WaterMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U11 U 1 U 11 U 1 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag112 334 10200 65 910 025 012 022 Q 05794 12700 41700 753 4200 06 BQ 062 BQ 062 BQ 26 BQ1490 63000 160000 1240 14700 044 BQ 12 BQ 06 BQ 5 BQ2630 121000 574000 2170 44700 087 BQ 35 BQ 054 QB 15 BQ3390 104000 1110000 2520 96000 13 QB 6 QB 057 BQ 31 BQ3130 95500 908000 1850 77900 12 QB 54 BQ 04 QB 22 BQ1410 42200 388000 755 31000 057 QB 26 B 013 JQB 58 QB424 13000 130000 211 9200 019 Q 085 Q 0024 JQ 13 Q205 2100 28000 78 2110 0085 036 00082 JQ 047178 518 34300 504 2170 0076 032 00064 J 032

13800 454000 3390000 9690 283000 5581 B Q 2097 B Q 31186 B Q 8399 B Q

EPA 1668AEPA 1668A EPA 1668AEPA 1668A EPA 1668ANA NA NA NA NANA NA NA NA NA

pgL pgLpgL pgL pgL

SW846 8082 SW846 8082 SW846 8082 SW846 80821 1 1 1

ugL ugL ugL ugL

EPA-22 1668A EPA-22 1668A EPA-22 1668A EPA-22 1668A1 1 1 1

ngL ngL ngL ngL

Page 28 of 28

AR103818

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 0012 B 0065 B 0028 B 1 U 1 U 057 B 031 B 02 B 013 B 027 B nr 0055 B 017 BAcetonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrAcrolein nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrBromoacetone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrBromobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrBromochloromethaneChlorobromomethane nr nr nr nr nr nr nr nr nr nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UBromoform 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UBromomethaneMethyl bromide 001 U 001 U 001 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U2-Butanone (Methyl Ethyl Ketone) 001 U 001 U 001 U 5 U 5 U 018 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Un-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrsec-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrtert-Butylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UCarbon Tetrachloride 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UChlorobenzene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0015 0027 UChloroethaneEthyl chloride 001 U 001 U 001 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U2-ChloroethanolEthylene chlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 001 U 001 U 001 U 50 U 50 U nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UChloromethaneMethyl chloride 001 U 001 U 001 U 25 U 25 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UChloroprene nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr2-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Chlorotoluene nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr12-Dibromoethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr14-Dichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nrDichlorodifluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr11-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U12-Dichloroethane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U11-Dichloroethene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Ucis-12-Dichloroethene nr nr nr nr nr nr nr nr nr nr nr nr nrtrans-12-Dichloroethene 0005 U 0005 U 0005 U 5 U 5 U nr nr nr nr nr nr nr nr12-Dichloroethene (Total) nr nr nr nr nr 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U13-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr22-Dichloropropane nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dichloro-2-Propanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr11-Dichloropropene nr nr nr nr nr nr nr nr nr nr nr nr nrcis-13-Dichloropropene 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 Utrans-13-Dichloropropene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr nr

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUS

noyesno

SedimentSolid

yesyesyes

not reported1

266mgKg

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

yes yes yes yes yes yes yes yes yes no yes yesyes yes yes yesyes yes no no yes no yes yes

yes yes yes yes yes yes yes yes yes no yes yesno no no nono no no no no no no no

yes yes yes yes yes yes yes yes yes yes yes yesno no no nono no no no no no no no

not reported not reported not reported not reported1 1 1 1 1 1 1 1 1

77 79 87 79625 316 78 28 63mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

Page 1 of 25

AR103819

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrHexachlorobutadiene nr nr nr nr nr nr nr nr nr nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone 001 U 001 U 001 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U2-Hydroxypropionitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrIsopropylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrp-Isopropyl Toluene nr nr nr nr nr nr nr nr nr nr nr nr nrMalononitrile nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr nr nr nr nr nrMethylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 00081 B 0014 B 0013 B 5 U 25 007 B 014 B 05 B 01 B 017 B nr 0058 B 0084 B1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 001 U 001 U 001 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrPropiolactone nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrPropionitrile nr nr nr 5 U 5 U nr nr nr nr nr nr nr nrPropylamine nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrn-Propylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrStyrene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0001 J 0027 U1112-Tetrachloroethane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UTetrachloroethene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U123-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trichlorobenzene nr nr nr nr nr nr nr nr nr nr nr nr nr111-Trichloroethane 0005 U 0005 U 00056 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U112-Trichloroethane 0005 U 0005 U 0005 U 1 U 1 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 UTrichloroethene 0005 U 0005 U 0005 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr nr nr nr nr nrTrichlorofluoromethane nr nr nr 5 U 5 U nr nr nr nr nr nr nr nr123-Trichloropropane nr nr nr 1 U 1 U nr nr nr nr nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr135-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate 001 U 001 U 001 U 1 U 1 U nr nr nr nr nr nr nr nrVinyl chloride 001 U 001 U 001 U 5 U 5 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U m+p-Xylenes nr nr nr nr nr nr nr nr nr nr nr nr nro-Xylene nr nr nr nr nr nr nr nr nr nr nr nr nrXylenes (Total) 0005 U 0005 U 0005 U 10 U 10 U 0043 U 0048 U 0077 U 0048 U 0045 U nr 0014 U 0027 U

mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg87 79 78266 625 316 77 79 28 63

1 1 1 1 1 11 1 1 1not reported not reported not reported not reported not reported

holding time exceeded detection limits very high or mis-reported

holding time exceeded detection limits very high or mis-reported

Page 2 of 25

AR103820

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 092 U 22 U 22 U nr nr 15 2 042 J 16 U 14 U nr 023 J 019 JAcenaphthylene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 0054 J 011 JAcetophenone nr nr nr nr nr nr nr nr nr nr nr nr nrAnthracene 092 U 22 U 22 U nr nr 14 U 027 J 25 U 16 U 14 U nr 014 J 062 JAtrazine nr nr nr U U nr nr nr nr nr nr nr nrBenzaldehyde nr nr nr nr nr nr nr nr nr nr nr nr nrBenzo(a)Anthracene 092 U 309 22 U nr nr 056 J 14 J 071 J 086 J 12 J nr 11 43Benzo(a)Pyrene 092 U 22 U 22 U nr nr 056 J 056 J 084 J 07 J 12 J nr 046 35Benzo(b)fluoranthene 092 U 22 U 25 nr nr 1 J 11 J 16 J 15 J 22 J nr 083 J 58 JBenzo(ghi)Perylene 092 U 22 U 22 U nr nr 056 J 044 J 25 U 055 J 086 J nr 034 J 26Benzo(k)fluoranthene 092 U 22 U 22 U nr nr 1 J 11 J 16 J 15 J 22 J nr 083 J 58 JBenzylbutylphthalateButylbenzylphthalate 092 U 22 U 22 U nr nr 36 097 J 25 U 16 U 14 U nr 044 U 85 U11-Biphenyl nr nr nr nr nr nr nr nr nr nr nr nr nr4-Bromophenyl-phenylether 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UCaprolactam nr nr nr nr nr nr nr nr nr nr nr nr nrCarbazole nr nr nr nr nr 14 U 16 U 25 U 16 U 14 U nr 0062 J 012 J4-Chloroaniline 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Chloroethoxy)Methane 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Chloroethyl)Ether 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Chloroisopropyl)Ether 092 U 22 U 22 U nr nr nr nr nr nr nr nr nr nr4-Chloro-3-Methylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U2-Chloronaphthalene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 012 J2-Chlorophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U4-Chlorophenyl-phenylether 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UChrysene 092 U 35 19 J nr nr 056 J 079 J 088 J 078 J 12 J nr 062 37Dibenzo(ah)Anthracene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 025 J nr 02 J 068 JDibenzofuran 092 U 22 U 22 U nr nr 024 J 058 J 25 U 16 U 14 U nr 015 J 011 J12-Dichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U13-Dichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 0049 J 85 U14-Dichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 011 J 85 U33-Dichlorobenzidine 184 U 46 U 46 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U24-Dichlorophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDiethylphthalate 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U24-Dimethylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDimethyl Phthalate 11 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDi-n-Butylphthalate 99 94 11 JB nr nr 057 J 021 J 04 J 023 J 028 J nr 012 J 024 J46-Dinitro-2-Methylphenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U24-Dinitrophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U24-Dinitrotoluene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 019 J 85 U26-Dinitrotoluene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UDi-n-Octyl Phthalate 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 Ubis(2-Ethylhexyl)Phthalate 065 J 15 J 22 U nr nr 15 14 J 16 J 12 J 1 B nr 09 079 JFluoranthene 092 U 3 22 U nr nr 094 J 14 J 11 J 11 J 16 nr 12 52Fluorene 092 U 22 U 22 U nr nr 015 J 021 J 25 U 16 U 14 U nr 024 J 026 JHexachlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UHexachlorobutadiene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UHexachlorocyclopentadiene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UHexachloroethane 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UIndeno(123-cd)Pyrene 092 U 22 U 22 U nr nr 044 J 045 J 044 J 055 J 086 J nr 042 J 24Isophorone 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U2-Methylnaphthalene 25 22 U 22 U nr nr 14 U 017 J 25 U 16 U 14 U nr 0065 J 85 U2-Methylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U4-Methylphenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UMethylMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNaphthalene 41 22 U 22 U nr nr 14 U 02 J 043 J 16 U 14 U nr 021 J 013 J2-Nitroaniline 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U3-Nitroaniline 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 U4-Nitroaniline 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 UNitrobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U2-Nitrophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U4-Nitrophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 UN-Nitroso-Di-n-Propylamine 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UN-Nitrosodiphenylamine 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U22-Oxybis(1-Chloropropane) nr nr nr nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 UPentachlorophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 35 U nr 11 U 21 UPhenanthrene 045 J 15 J 18 J nr nr 045 J 056 J 032 J 042 J 044 J nr 067 22Phenol 43 22 U 22 U nr nr 14 U 018 J 25 U 16 U 15 U nr 044 U 85 UPyrene 092 U 504 24 nr nr 098 J 16 J 12 J 14 J 2 nr 14 J 68124-Trichlorobenzene 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U245-Trichlorophenol 46 U 114 U 114 U nr nr 34 U 38 U 61 U 38 U 36 U nr 11 U 21 U246-Trichlorophenol 092 U 22 U 22 U nr nr 14 U 16 U 25 U 16 U 14 U nr 044 U 85 U

2Not Reported

mgKg

5 5 1 1 1 1 1 1 1 and 277 79 87 79Not reported Not reported 78 28 63

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Page 3 of 25

AR103821

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 1320 7850 10650 nr nr 8250 7570 7730 6530 7290 nr 3710 5100Antimony 37 U 83 U 38 U 279 25 95 U 187 U 272 U 139 U 114 U nr 44 U 103 UArsenic 7 U 14 U 12 J 98 1 16 129 71 B 53 B 22 nr 27 39 BBarium 122 U 295 U 159 nr nr 264 148 B 761 B 683 B 69 B nr 786 142Beryllium 3 U 8 U 3 U 05 05 U 14 B 16 B 069 B 097 B 13 B nr 035 B 12 BCadmium 3 U 118 364 01 U 01 U 056 U 94 24 B 09 B 11 B nr 026 U 15 BCalcium 1320 J 11320 27120 nr nr 30900 17700 7650 B 42700 4880 nr 49300 6120Chromium 6 U 130 261 26 903 541 193 149 116 125 nr 359 845Chromium III nr nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt 31 U 74 U 31 U nr nr 118 B 147 B 154 B 139 B 138 B nr 57 B 125 BCopper 16 U 105 224 911 15 179 298 153 120 126 nr 533 135Iron 6580 23180 47720 nr nr 62200 59300 32900 23100 24800 nr 26300 18700Lead 353 J 231 J 232 J 279 205 716 436 180 142 150 nr 872 155Magnesium 526 J 3310 J 8040 nr nr 7940 4110 B 3550 B 22500 2920 B nr 12100 2930 BManganese 108 J 311 J 993 J nr nr 468 509 330 265 247 nr 343 153Mercury 02 U 241 091 0325 01 U 083 21 12 13 15 nr 023 11Nickel 25 U 913 291 48 106 583 743 102 839 885 nr 297 648Potassium 3100 U 7400 U 1330 J nr nr 826 B 1020 B 1220 B 1030 B 1000 B nr 437 B 672 BSelenium 4 U 7 U 4 U 005 U 005 U 42 8 75 B 53 26 B nr 27 62Silver 7 U 15 U 7 U 0211 0263 14 U 28 U 4 U 21 U 24 B nr 065 U 51 BSodium 3100 U 2800 J 667 J nr nr 598 B 3130 B 5160 B 3520 B 2860 B nr 289 B 2030 BThallium 7 U 14 U 7 U 12 11 073 U 15 U 21 U 1 U 093 U nr 033 U 077 UTin 31 U 59 U 25 U nr nr nr nr nr nr nr nr nr nrVanadium 31 U 74 U 364 nr nr 585 133 398 B 234 B 246 B nr 249 16 BZinc 396 643 490 280 459 1220 1620 601 443 479 nr 161 467Cyanide 14 U 30 U 14 U nr nr 14 U 3 U 4 U 22 U 18 U nr 067 U 16 U

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr nr nr nr nr nrAntimony nr nr nr nr nr nr nr nr nr nr nr nr nrArsenic nr nr nr nr nr nr nr nr nr nr nr nr nrBarium nr nr nr nr nr nr nr nr nr nr nr nr nrBeryllium nr nr nr nr nr nr nr nr nr nr nr nr nrCadmium nr nr nr nr nr nr nr nr nr nr nr nr nrCalcium nr nr nr nr nr nr nr nr nr nr nr nr nrChromium nr nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr nr nr nr nr nrCopper nr nr nr nr nr nr nr nr nr nr nr nr nrIron nr nr nr nr nr nr nr nr nr nr nr nr nrLead nr nr nr nr nr nr nr nr nr nr nr nr nrMagnesium nr nr nr nr nr nr nr nr nr nr nr nr nrManganese nr nr nr nr nr nr nr nr nr nr nr nr nrMercury nr nr nr nr nr nr nr nr nr nr nr nr nrNickel nr nr nr nr nr nr nr nr nr nr nr nr nrPotassium nr nr nr nr nr nr nr nr nr nr nr nr nrSelenium nr nr nr nr nr nr nr nr nr nr nr nr nrSilver nr nr nr nr nr nr nr nr nr nr nr nr nrSodium nr nr nr nr nr nr nr nr nr nr nr nr nrThallium nr nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr nr nr nr nr nrZinc nr nr nr nr nr nr nr nr nr nr nr nr nr

Not Reported282

mgKg

Not Reported Not Reported 1 1 1 1 1 1 1652 839 884 775668 278 323 871 725 256 691

mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Page 4 of 25

AR103822

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

MCB977

062785

Sauer DumpS-1

S-1 Pond SedCA 882

NUSSediment

Solid

Sauer Dump

MCB978

SedimentSolid

S-2 Marsh-River-Drain

MCGX03 MCGX12

Sauer Dump Sauer Dump Sauer Dump Sauer Dump

S-3 Channel

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump

MCB979CHH13

Sauer Dump Sauer DumpS-2 S-3 A-1 A-2 SD-01 SD-02 SD-04 SD-05 SD-06 SD-07 SD-08 SD-10

CHH15 CHH01 CHH02 CJM46 CHH17 CHH19CA 883 CA 884 CHH03MCGX14 MCGX01 MCGX02 MCGX16 MCGX18

062785 062785 102490 102490 120892 120892 120892 120892 120892 120892 120892 120892NUS NUS MDE MDE HNUS HNUS HNUS HNUS HNUS HNUS HNUS HNUS

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid Solid Solid Solid

Duplicate of SD-6 Duplicate of SD-5

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 0023 U 009 U 4855 U U U 0036 U 048 B 00014 J 00017 J 00036 J 000064 J 00024 U 00041 Jalpha-BHC 0023 U 009 U 4855 U U U 0036 U 0016 U 0013 U 00081 U 00077 U 00039 U 00024 U 000032 Jbeta-BHC 0023 U 009 U 4855 U U U 0036 U 11 0013 U 00081 U 00077 U 00039 U 00024 U 00045 Udelta-BHC 0023 U 009 U 4855 U U U 0036 U 0023 J 000053 J 00012 J 00077 U 00039 U 00024 U 00045 Ugamma-BHC (Lindane) 0023 U 009 U 4855 U U U 0036 U 0016 U 000083 J 00081 U 00077 U 00039 U 00024 U 00045 Ualpha-Chlordane nr nr nr U U 0036 U 0016 U 0013 U 00081 U 00077 U 0015 00024 U 00045 Ugamma-Chlordane nr nr nr U U 0036 U 0056 J 0013 U 00024 JB 00077 U 000094 J 00024 U 00078 BChlordane total 0225 U 09 U 4855 U U U nr nr nr nr nr nr nr nr44-DDD 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0016 U 0015 U 00075 U 000091 J 00088 U44-DDE 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 00045 J 0007 J 00012 J 00046 U 00088 U44-DDT 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0016 U 0015 U 00075 U 00046 U 00088 UDieldrin 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0003 J 0015 U 00044 J 00046 U 00048 JEndosulfan I 0023 U 009 U 4855 U U U 0036 U 038 0013 U 00024 J 00077 U 00039 U 00024 U 00012 JEndosulfan II 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 00099 JB 0015 U 00075 U 00046 U 00088 UEndosulfan sulfate 0045 U 018 U 971 U U U 007 U 001 J 0025 U 0016 U 0016 U 00075 U 00046 U 00039 JEndrin 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0002 J 0015 U 00075 U 00046 U 00088 UEndrin aldehyde 0045 U 018 U 971 U U U 007 U 013 J 0025 U 0016 U 0015 U 00075 U 00046 U 00088 UEndrin ketone 0045 U 018 U 971 U U U 007 U 0031 U 0025 U 0016 U 0015 U 00075 U 00046 U 00088 UHeptachlor 0023 U 009 U 4855 U U U 0036 U 0016 U 0013 U 00081 U 00077 U 00039 U 00024 U 00045 UHeptachlor epoxide 0023 U 009 U 4855 U U U 0036 U 0016 U 0013 U 00081 U 00077 U 00039 U 000044 J 00044 JMethoxychlor 0045 U 018 U 971 U U U 036 U 016 U 013 U 0081 U 0077 U 0039 U 0024 U 024Toxaphene 045 U 18 U 971 U U U 36 U 16 U 13 U 081 U 077 U 039 U 024 U 045 UAroclor-1016 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1221 02 U 09 U 486 U U U 14 U 06 U 05 U 03 U 03 U 02 U 01 U 02 UAroclor-1232 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1242 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1248 02 U 09 U 486 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UAroclor-1254 045 U 2948 267899 18 1 11 15 028 016 U 018 0075 U 042 0088 UAroclor-1260 05 U 18 U 971 U U U 07 U 03 U 03 U 02 U 02 U 01 U 00 U 01 UTotal PCBs 29 2679 180 10 110 150 03 02 04

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

5Not reported

mgKg

Not Reported Not Reported10 1000 5 200 1 1 1 1 1 1

77 37 87 79Not Reported Not Reported 78 56 28 63mgKgmgKg mgKg mgKg mgKgmgKg mgKg

Incomplete lab report No Other Pesticides or PCBs detected

Incomplete lab report No Other Pesticides or PCBs detected

mgKg mgKg mgKg

Page 5 of 25

AR103823

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag042 B 0091 U 0024 U 015 B 0067 B 032 B 0031 U 055 B 0023 B nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0052 J 0091 U 0024 U 0047 0016 U 0043 0031 U 0084 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 001 J 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

yes yes yes yesyes no no no noyes yes yes yes noyes yes yes yes yes no no noyes yes yes yes no no

yes yes yes yesyes yes yes yes yesyes yes yes yes yesno no no no no no no nono no no no no no

yes yes yes yesyes PCBs PCBs PCBs PCBsyes yes yes yes PCBsno no no no no no no nono no no no no no

1 1 1 11 1 1 1 188 89 58 73 3037 75 68 78

mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg

Page 6 of 25

AR103824

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

013 B 0097 B 0033 B 004 B 0029 B 024 B 0068 B 012 B 0026 B nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

0083 U 0091 U 0024 U 0037 U 0016 U 004 U 0031 U 0045 U 0014 U nr nr nr nr nr

mgKg30

mgKg mgKg mgKg37 75 68 78

11 1 1 11 1 188 89 58 731

mgKg mgKg mgKgmgKg mgKg

Page 7 of 25

AR103825

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag28 U 29 U 08 U 034 J 051 U 14 U 1 U 13 J 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 13 0057 J 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 82 033 J 027 J 1 U 15 U 0061 J nr nr nr nr nr28 U 29 U 08 U 12 029 J 018 J 1 U 15 U 047 U nr nr nr nr nr047 J 29 U 0094 J 17 J 05 J 03 J 016 J 025 J 047 U nr nr nr nr nr28 U 29 U 08 U 65 024 J 015 J 1 U 15 U 047 U nr nr nr nr nr

047 J 29 U 0094 J 17 J 05 J 03 J 016 J 025 J 047 U nr nr nr nr nr047 J 052 J 018 J 12 U 033 J 019 J 017 J 24 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 021 J 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 76 036 J 017 J 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 26 0081 J 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 013 J 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr051 J 036 J 011 J 029 J 007 J 14 U 012 J 037 J 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 048 J 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr085 J 094 J 0089 J 45 038 J 03 J 017 J 098 J 013 JB nr nr nr nr nr029 J 29 U 08 U 88 034 J 015 J 012 J 025 J 0083 J nr nr nr nr nr28 U 29 U 08 U 03 J 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 94 022 J 014 J 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 038 J 031 J 15 U 047 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr28 U 29 U 08 U 12 U 0056 J 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 73 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 34 024 J 14 U 1 U 15 U 047 U nr nr nr nr nr28 U 3 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr045 J 04 J 08 U 96 049 J 021 J 014 J 03 J 0076 J nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr68 U 7 U 19 U 29 U 12 U 33 U 25 U 35 U 11 U nr nr nr nr nr28 U 29 U 08 U 12 U 051 U 14 U 1 U 15 U 047 U nr nr nr nr nr

1 1 1 and 2 11 1 1 1 188 89 58 73 3037 75 68 78

mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg

Page 8 of 25

AR103826

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag10000 12300 10100 14600 4860 13600 7020 9930 4250 4950 5485 51605 9971 4162248 U 256 U 85 U 145 U 116 B 138 U 83 U 162 U 42 U 10 U 10 U 10 U 10 U 10 U77 B 5 B 5 B 135 107 127 4 B 175 2 B 05 U 34 63 93 52

895 B 128 B 511 B 172 173 125 B 636 B 477 185 B 665 392 523 12 6928 B 35 B 14 B 3 B 041 B 2 B 078 B 13 B 058 B 025 U 025 U 025 U 025 U 023731 B 33 B 05 U 26 B 35 19 B 049 U 45 B 025 U 256 251 387 97 11

8250 5980 B 2890 12300 26800 7450 1980 B 29200 365 B 41085 15657 12506 14912 1037992 964 199 384 145 706 164 772 199 96 28 325 11 22nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

307 B 643 B 131 B 509 74 B 25 B 94 B 14 B 35 B 19 42 36 39 44478 106 497 225 696 146 27 428 105 176 347 865 74 38

28200 18400 12900 24000 46400 33900 13000 48700 8130 10765 12170 15649 38012 1418288 178 129 394 839 364 683 1060 165 694 466 417 264 276

5080 B 4140 B 1550 B 5120 6220 4660 861 B 8820 791 B 8394 5175 7521 4738 464400 291 195 731 641 258 166 331 618 169 339 361 448 52215 088 045 16 22 088 032 15 021 02 U 031 12 U 029 02 U846 114 162 B 504 545 511 122 B 819 117 72 217 183 76 18

1260 B 1080 B 581 B 788 B 401 B 1110 B 330 B 1180 B 330 B 641 572 344 356 333126 56 27 51 161 191 46 55 12 B 125 05 U 24 089 05 U55 B 38 U 13 U 21 U 4 2 U 12 U 37 B 062 U 05 U 085 075 16 05 U

4690 B 6770 833 B 969 B 169 B 249 B 161 B 651 B 496 B 142 379 215 358 1702 U 2 U 069 U 11 U 036 U 095 U 065 U 13 U 032 U 10 U 10 U 10 U 10 U 10 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr34 B 392 B 251 B 407 B 357 573 23 B 104 114 B 94 76 92 83 93874 934 182 851 1270 1050 147 2360 538 160 159 354 902 2244 U 4 U 13 U 21 U 075 U 19 U 12 U 25 U 065 U nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

1 1 1 11 Not Reported1 1 1 1876 879 633 774 231 Not Reported357 758 591 815

mgKg mgKg mgKgmgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg mgKgmgKg

Page 9 of 25

AR103827

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSD-22 SD-24 SD-25 SD-26SD-15 SD-18 SD-21 SED-3 SED-4 SED-5SD-27 SD-29 SED-1 SED-2

CHH07 CHH27 CHH05 CHH30 CHH33CHH21 CHH23 CHH25 CHH09 A964259A964255 A964256 A964257 A964258MCGX24 MCGX09 MCGX26MCGX07 761265 761266 761267 761268MCGX05 MCGX28 MCGX31 761264

120892 120892 120892 120892 120892 040496 040496 040496120892 120892 120892 120892 040496 040496HNUS HNUS HNUS HNUSHNUS MDE MDE MDE MDEHNUS HNUS HNUS HNUS MDE

Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00073 J 0015 U 0004 U 00062 U 0016 J 00012 J 000051 J 0015 000042 J nr nr nr nr nr0014 U 000035 J 000021 J 00062 U 0053 U 000028 J 00053 U 00077 U 000012 J nr nr nr nr nr0014 U 0015 U 000092 J 0027 J 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr0014 U 0015 U 00018 J 000075 J 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr

00027 J 0015 U 0004 U 00062 U 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr0014 U 0015 U 0004 U 0078 J 0053 U 00051 J 000069 JB 00077 U 00024 U nr nr nr nr nr

00062 JB 00038 J 0004 U 00062 U 0017 JB 0021 00064 B 00077 U 000032 J nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr 04

0027 U 00059 J 00078 U 0012 U 01 U 0013 U 001 U 0015 U 00047 U nr nr nr nr nr0027 U 00098 J 00027 J 0012 U 01 U 00027 J 001 U 0015 U 000066 J nr nr nr nr nr0027 U 003 U 00078 U 0012 U 28 0013 U 001 U 0015 U 00047 U nr nr nr nr nr0027 U 00012 J 00078 U 0012 U 00078 J 0013 U 000035 J 0015 U 0000077 J nr nr nr nr nr0014 U 0015 U 0004 U 00062 U 0053 U 00068 U 00053 U 00077 U 00024 U nr nr nr nr nr0027 U 003 U 00078 U 0027 J 01 U 00028 J 00065 JB 0015 U 000046 J nr nr nr nr nr0027 U 00053 J 00046 J 0012 U 0061 J 00093 J 001 U 00045 J 000033 J nr nr nr nr nr00012 J 003 U 00078 U 0012 U 00078 J 0013 U 000035 J 0015 U 00047 U nr nr nr nr nr0027 U 00016 J 00078 U 023 J 027 00022 J 001 U 0015 U 00047 U nr nr nr nr nr0027 U 003 U 00078 U 0012 U 001 U 0013 U 001 U 00072 J 00047 U nr nr nr nr nr0014 U 00013 JB 000015 JB 00062 U 0053 U 00068 U 0011 B 00077 U 000029 JB nr nr nr nr nr0014 U 0015 U 0004 U 0021 J 0053 U 000081 J 00053 U 00077 U 00024 U nr nr nr nr nr014 U 00016 J 00012 J 0002 J 008 J 0068 U 0053 U 0016 J 0024 U nr nr nr nr nr14 U 15 U 04 U 062 U 53 U 068 U 053 U 077 U 024 U nr nr nr nr nr03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U06 U 06 U 02 U 03 U 21 U 03 U 02 U 03 U 01 U03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U03 U 03 U 01 U 01 U 10 U 01 U 01 U 02 U 00 U027 U 03 U 022 31 1 U 014 01 U 11 0047 U03 03 U 01 U 48 56 02 J 01 U 02 U 00 U 01 01 03 03 01 03 02 79 56 03 11 01 01 03 03 01

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

1 1 1 20 and 2001 1 1 1 188 89 58 73 3037 75 68 78

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

Incomplete lab report No other PCBs detected

mgKg mgKg

Page 10 of 25

AR103828

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved MetalsPCBsPesticidesOther Analytes

VOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 04075 U 04028 U 0319 U 0283 U 033 U 02588 U 03155 U 04435 U 011 B nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 01725 01576 01096 01115 01402 01112 01384 01166 0009 J nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr 0007 J nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

yes yes yes yesno yes yes no no noyes yes yes noyes yes yes yesno yes no yes yes yesyes yes yes yes

yes yes yes yesno yes yes yes yes yesyes yes yes nono no no nono no no no no nono no no no

yes yes yes yesPCBs only yes yes yes yes yesyes yes yes PCBs onlyno no no nono no no no no nono no no no

EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported Not Reported 1

NA NA NA NA NA 79mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKg

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 11 of 25

AR103829

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnits

Notes

Analyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0015 JB nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 04454 04694 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr 01522 01006 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 00815 U 00806 U 00638 U 00566 U 0066 U 00518 U 00631 U 00887 U 0048 U nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 0163 U 01611 U 01276 U 01132 U 0132 U 01035 U 01261 U 01774 U 0048 U nr nr nr nr

79NA NA NANA NANot Reported Not Reported 1Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported

EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260

mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceededHolding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 12 of 25

AR103830

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 012 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr 22 U nr 033 U 033 U 033 Unr U U 22 U nr nr nr nrnr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 013 J nr 033 U 033 U 033 Unr U U 011 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 018 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U nr nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 014 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U nr nr nr nr nrnr U U nr nr nr nr nrnr U U nr nr nr nr nrnr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 078 U 078 U 078 Unr U U 22 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 13 nr 033 U 033 U 033 Unr U U 014 J nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr B B 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U nr nr nr nr nrnr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 083 U 083 U 083 Unr U U 55 U nr 083 U 083 U 083 Unr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr nr nr nrnr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 Unr U U 22 U nr 033 U 033 U 033 Unr U U 015 J nr 033 U 033 U 033 Unr U U nr nr nr nr nrnr U U 55 U nr 083 U 083 U 083 Unr U U 22 U nr 033 U 033 U 033 U

EPA 608 EPA 625 EPA 625 EPA 625EPA 608 EPA 8070 EPA 8070 EPA 8070EPA 625 EPA 625 EPA 625not reported 1 1 11

NA 31 21 5685mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Incomplete lab report No SVOCs detected

Page 13 of 25

AR103831

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 3936 1898 5071 4818 4394 3343 7962 6474 9100 nr 7246 9494 11591nr 25 U 25 U 25 U 25 U 25 U 25 U 26 25 U 114 J nr 25 U 25 U 25 Unr 357 14 125 U 125 U 125 U 125 U 7943 136 163 nr 25 U 39 2 Unr 71 262 269 26 264 429 358 48 249 J nr 23 25 34nr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 049 J nr 1 U 1 U 1 Unr 54 5 U 5 U 5 U 5 U 5 U 41 5 U 081 JB nr 1 U 1 U 1 Unr 5535 1079 1270 1650 1663 4254 8753 890 12100 nr 72 10 73nr 255 143 441 343 337 271 552 783 965 J nr 19 18 34nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 5 U 5 U 544 532 508 515 733 584 148 J nr 46 41 89nr 67 285 355 257 295 34 281 489 169 J nr 94 71 20nr 18970 5225 446 4435 444 4179 103796 543 47300 nr 11739 12658 17045nr 186 265 448 324 338 427 109 564 182 nr 13 10 27nr 1979 713 1328 1236 1372 1717 2926 1392 4940 J nr 1261 1152 2727nr 202 118 1164 1282 1266 127 361 1926 1410 nr 112 59 341nr 132 0198 025 0211 0254 0223 U 0219 0369 086 nr 01 U 01 U 01 Unr 17 824 277 209 209 19 493 343 657 J nr 11 87 30nr 386 612 706 675 557 403 229 831 987 J nr 609 633 1795nr 261 125 U 125 U 125 U 125 U 125 U 611 125 U 74 J nr 5 U 5 U 5 Unr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 33 J nr 2 U 2 U 2 Unr 1212 935 1130 919 975 719 1490 1081 2890 J nr 1739 1519 2159nr 125 U 125 U 125 U 125 U 125 U 125 U 125 U 125 U 2 U nr 2 U 2 U 2 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr 185 833 1294 1098 106 879 117 1389 672 J nr 16 22 20nr 308 745 1492 1186 1778 1163 531 194 655 nr 42 23 107nr 0072 U 002 U 0051 U 0089 U 0071 U 0082 U 003 U 0062 U 05 U nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 2008 EPA 2008 EPA 2008Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported 1 1 1Not Reported Not Reported Not Reported

21 56Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported Not Reported 31mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg

Page 14 of 25

AR103832

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer DumpSED-00 SED-05 SED-06 SED-07 SED-08SED-01 SED-02 SED-03 SED-04 SED-09 SED-10 SDMT-1 (0-6) SDMT-1 (6-12) SDMT-2 (0-20)

99121537 A900931 A900932 A900933 A901012 CTS25 99121536A901008 A901009 A901010 A901011M700317 M700318 M700319 E400075E400073 E400074 M700316 M700920

A900951 A900952 A901019 A901920 A901021 A901022 A900953 A901023092999 100199 100199 100199121599 092999 121599 121801 121801 121801100199 092999 100199 092999

MDE MDE MDE MDEMDE MDE MDE ENSAT ENSAT ENSATMDE MDE MDE MDESediment Sediment Sediment SedimentSediment Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment

Solid Solid Solid SolidSoil Soil Soil Solid Solid SolidSoil Soil Soil SoilDup Of SED-10 Background Duplicate of SED-2

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0017 J nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr nr nr nr nr nr nr nr nr 0011 U nr 0004 U 0004 U 0004 Unr nr nr nr nr nr nr nr nr 0011 U nr 0004 U 0004 U 0004 Unr 025 U 025 U 025 U 025 U 025 U 025 U 025 U 025 U nr nr nr nr nrnr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 00063 J nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 001 U 002 U 002 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0022 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 00097 J nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 0011 U nr 0004 U 0004 U 0004 Unr 05 U 05 U 05 U 05 U 05 U 05 U 05 U 05 U 011 U nr 0004 U 0004 U 0004 Unr 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 11 U nr 01 U 01 U 01 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 05 U 01 U 00 U 00 U 00 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U01 U nr nr nr nr nr nr nr nr 02 U 01 U 00 U 00 U 00 U

0334 79 144 025 U 21 025 U 025 U 2 025 U 2 0401 0013 U 0013 U 0013 U01 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 03 U 02 U 01 U 00 U 00 U 00 U03 79 144 21 20 20 04

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 8081 EPA 8081 EPA 8081 EPA 8081EPA 8081 EPA 80818082 EPA 80818082 EPA 80818082EPA 8081 EPA 8081 EPA 8081Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported 1 1 1Not Reported Not Reported 1

Not Reported Not Reported Not Reported Not ReportedNot Reported Not Reported Not Reported Not Reported NA 31 21 56mgKg mgKg mgKg mgKg mgL mgKg mgKg mgKgmgKg mgKg mgKg mgKg

Page 15 of 25

AR103833

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSDMT-8 (0-20) SDMT-8 (20-30)SDMT-7 (0-20) SDMT-7 (20-30)SDMT-2 (20-30) SDMT-3 (0-4) SDMT-3 (4-10) SDMT-4 (0-20) SDMT-4 (20-30) SDMT-5 (0-20) SDMT-5 (20-30) SDMT-9 (0-20)SDMT-6 (0-4) SDMT-6 (4-7)

121801 121901 121901 121801121801 121801 121801 121801 121801 121901121801 121901 121901 121801ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT

Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment SedimentSolid Solid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

033 U 033 U 033 U 033 U 033 U 033 U 022 J 0116 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 022 J 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 0184 J 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 0186 J 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 026 J 013 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U 078 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 044 J 0256 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 0154 J 0147 J 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U033 U 033 U 033 U 033 U 033 U 033 U 042 J 0256 J 033 U 033 U 033 U 033 U 033 U 033 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr

083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U 083 U033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U 033 U

EPA 8070 EPA 8070 EPA 8070 EPA 8070EPA 8070 EPA 8070 EPA 8070 EPA 8070 EPA 8070 EPA 8070EPA 8070 EPA 8070 EPA 8070 EPA 80701 1 1 1 11 1 1 1 11 1 1 1

22 57 50 5751 23 23 62 50 5425 64 52 57mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg

Page 18 of 25

AR103834

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSDMT-8 (0-20) SDMT-8 (20-30)SDMT-7 (0-20) SDMT-7 (20-30)SDMT-2 (20-30) SDMT-3 (0-4) SDMT-3 (4-10) SDMT-4 (0-20) SDMT-4 (20-30) SDMT-5 (0-20) SDMT-5 (20-30) SDMT-9 (0-20)SDMT-6 (0-4) SDMT-6 (4-7)

121801 121901 121901 121801121801 121801 121801 121801 121801 121901121801 121901 121901 121801ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT

Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment SedimentSolid Solid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag6327 7922 9610 6053 4231 9070 5200 4186 3333 11111 12500 6977 8800 760925 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 5 U 25 U2 U 2 U 29 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 4 U 2 U

17 18 19 42 12 23 54 16 13 33 27 35 24 331 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U 1 U1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U 1 U78 10 39 221 33 114 130 172 117 100 27 212 32 20413 16 17 68 85 17 24 10 12 31 19 53 15 39nr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr53 36 42 10 36 63 82 79 55 10 79 81 5 U 7210 65 66 55 33 13 34 65 10 24 10 42 5 U 37

11837 12987 19481 16316 16667 16047 12800 8372 6800 20556 13750 13256 22000 1434884 91 83 68 46 12 60 84 11 23 88 53 5 U 41

1755 1078 1130 2526 1038 2186 1480 1907 1467 3056 2708 2326 2800 2391198 69 66 250 113 212 184 149 99 242 292 202 196 21701 U 01 U 01 U 01 U 01 U 01 U 08 01 U 01 U 01 U 01 U 01 U 01 U 01 U10 77 84 37 58 14 26 84 91 20 15 37 12 28

939 701 727 1105 500 1233 760 814 627 1694 1958 1093 2000 12835 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 4 U 2 U

2449 1091 1208 4474 1282 3023 2200 4186 2400 4167 2500 3256 2600 28262 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 4 U 2 Unr nr nr nr nr nr nr nr nr nr nr nr nr nr11 19 22 12 83 13 9 91 76 28 23 16 24 1831 26 27 258 15 42 170 26 36 83 50 195 30 130nr nr nr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr nr nr

EPA 2008 EPA 2008 EPA 2008 EPA 2008EPA 2008 EPA 2008 EPA 2008 EPA 2008 EPA 2008 EPA 2008EPA 2008 EPA 2008 EPA 2008 EPA 20081 1 1 1 11 1 1 1 11 1 1 1

51 23 23 62 22 57 50 57 57 50 5425 64 52mgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg mgKgmgKg mgKg mgKg mgKg

Page 19 of 25

AR103835

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpSDMT-8 (0-20) SDMT-8 (20-30)SDMT-7 (0-20) SDMT-7 (20-30)SDMT-2 (20-30) SDMT-3 (0-4) SDMT-3 (4-10) SDMT-4 (0-20) SDMT-4 (20-30) SDMT-5 (0-20) SDMT-5 (20-30) SDMT-9 (0-20)SDMT-6 (0-4) SDMT-6 (4-7)

121801 121901 121901 121801121801 121801 121801 121801 121801 121901121801 121901 121901 121801ENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT ENSATENSAT ENSAT ENSAT ENSAT

Sediment Sediment Sediment Sediment SedimentSediment Sediment Sediment Sediment SedimentSediment Sediment Sediment SedimentSolid Solid Solid Solid SolidSolid Solid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0005 U 0005 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U

nr nr nr nr nr nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 002 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U002 U 002 U 002 U 002 U 002 U 002 U 0004 U 002 U 002 U 002 U 002 U 002 U 002 U 002 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U 0004 U01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U 01 U

0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U 0018 U0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U 0023 U0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U 0027 U0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U 0019 U0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U 0009 U0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U 0013 U0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U 0007 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag

EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082EPA 80818082 EPA 80818082 EPA 80818082 EPA 808180821 1 1 1 11 1 1 1 11 1 1 1

57 25 64 5251 23 23 62 22 57 57 50 5450mgKgmgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKg mgKgmgKg

Page 20 of 25

AR103836

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer DumpSauer Dump Sauer DumpSDMT-A (0-4) SDMT-B (20-30)SDMT-9 (20-30)

121901 121801 121801ENSAT ENSAT ENSAT

Sediment Sediment SedimentSolid Solid Solid

Dup Of SDMT-6 Dup Of SDMT-4

DG-SD03-05 DG-SD04-05 DG-SD05-05C7A110284003 C7A130138002 C7A130138001

010907

Solid

010907 010907

DG-SD01-05 DG-SD02-05C7A110284001 C7A110284002

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpDG-SD07-05 DG-SD08-05 DG-SD09-05

C7A130138003 C7A130138005 C7A130138006

Sauer Dump

C7A130138007DG-SD06-05

011007 011007 011007 011107 011107 011207Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Sediment Sediment Sediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nrnr nr nrnr nr nr

033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U078 U 078 U 078 U083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

033 U 033 U 033 U083 U 083 U 083 U083 U 083 U 083 U083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 U083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

083 U 083 U 083 U033 U 033 U 033 U033 U 033 U 033 U033 U 033 U 033 Unr nr nr

083 U 083 U 083 U033 U 033 U 033 U

EPA 8070 EPA 8070 EPA 80701 1 162 32 26

mgKg mgKg mgKg

Page 23 of 25

AR103837

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer DumpSauer Dump Sauer DumpSDMT-A (0-4) SDMT-B (20-30)SDMT-9 (20-30)

121901 121801 121801ENSAT ENSAT ENSAT

Sediment Sediment SedimentSolid Solid Solid

Dup Of SDMT-6 Dup Of SDMT-4

DG-SD03-05 DG-SD04-05 DG-SD05-05C7A110284003 C7A130138002 C7A130138001

010907

Solid

010907 010907

DG-SD01-05 DG-SD02-05C7A110284001 C7A110284002

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpDG-SD07-05 DG-SD08-05 DG-SD09-05

C7A130138003 C7A130138005 C7A130138006

Sauer Dump

C7A130138007DG-SD06-05

011007 011007 011007 011107 011107 011207Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Sediment Sediment Sediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag10263 2059 7973 nr nr nr nr nr nr nr nr nr

5 U 25 U 25 U nr nr nr nr nr nr nr nr nr4 U 2 U 28 nr nr nr nr nr nr nr nr nr26 15 15 nr nr nr nr nr nr nr nr nr2 U 1 U 1 U nr nr nr nr nr nr nr nr nr2 U 1 U 1 U nr nr nr nr nr nr nr nr nr

218 46 22 nr nr nr nr nr nr nr nr nr21 18 12 nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr5 U 25 U 92 nr nr nr nr nr nr nr nr nr5 U 19 15 nr nr nr nr nr nr nr nr nr

15263 4265 37838 nr nr nr nr nr nr nr nr nr5 U 22 6 75 471 370 488 4800 595 150 101 301

3158 691 1216 nr nr nr nr nr nr nr nr nr221 84 203 nr nr nr nr nr nr nr nr nr01 U 01 U 01 U nr nr nr nr nr nr nr nr nr16 87 15 nr nr nr nr nr nr nr nr nr

1789 338 770 nr nr nr nr nr nr nr nr nr5 U 5 U 5 U nr nr nr nr nr nr nr nr nr4 U 2 U 2 U nr nr nr nr nr nr nr nr nr

3158 1618 1622 nr nr nr nr nr nr nr nr nr2 U 2 U 2 U nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr24 5 14 nr nr nr nr nr nr nr nr nr42 65 42 nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flagnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nrnr nr nr

EPA 2008 EPA 2008 EPA 20081 1 1

3262 26mgKg mgKg mgKg

SW846 6010B SW846 6010B SW846 6010B SW846 6010B SW846 6010B5 1 1 1 1

SW846 6010B SW846 6010B SW846 6010B SW846 6010B1 1 1 1

mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg

Page 24 of 25

AR103838

Table A3Sediment Analytical Data - 1985 to 2007Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other AnalytesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer DumpSauer Dump Sauer DumpSDMT-A (0-4) SDMT-B (20-30)SDMT-9 (20-30)

121901 121801 121801ENSAT ENSAT ENSAT

Sediment Sediment SedimentSolid Solid Solid

Dup Of SDMT-6 Dup Of SDMT-4

DG-SD03-05 DG-SD04-05 DG-SD05-05C7A110284003 C7A130138002 C7A130138001

010907

Solid

010907 010907

DG-SD01-05 DG-SD02-05C7A110284001 C7A110284002

Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpDG-SD07-05 DG-SD08-05 DG-SD09-05

C7A130138003 C7A130138005 C7A130138006

Sauer Dump

C7A130138007DG-SD06-05

011007 011007 011007 011107 011107 011207Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Sediment Sediment Sediment Sediment Sediment Sediment Sediment Sediment SedimentSolid Solid Solid SolidSolid Solid Solid Solid

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr

nr nr nr nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr002 U 002 U 002 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr0004 U 0004 U 0004 U nr nr nr nr nr nr nr nr nr01 U 01 U 01 U nr nr nr nr nr nr nr nr nr00 U 00 U 00 U 0048 U 0031 U 13 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U00 U 00 U 00 U 0048 U 0031 U 0079 U 04 U 0091 U 1 UJ 0075 U 0047 U 0065 U

0013 U 0013 U 0013 U 0048 U 0031 U 091 33 058 15 11 0047 U 0065 U00 U 00 U 00 U 0048 U 0086 14 04 U 051 1 UJ 0075 U 0047 U 0032 J

0048 U 0086 361 33 109 15 11 0032

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag00000026 BJ 000026 B 0029 B 00096 U 00025 BJQ 0003 QBJ 000071 QBJ 0000012 QBJ 000014 B0000052 QBJ 00049 BQ 062 BQ 00034 QBJ 0015 QB 017 QB 00079 QB 0000069 QBJ 00011 QB0000078 Q B J 0017 BQ 22 B 0012 QBJ 0069 BQ 099 BQ 0039 BQ 0000058 BJQ 00041 BQ0000097 BJQ 0066 BQ 23 BQ 031 QB 023 BQ 6 BQ 016 BQ 0000066 BJQ 0012 QB0000092 BJQ 013 QB 13 QB 14 BQ 054 BQ 18 BQ 038 QB 0000077 Q B J 0023 QB0000076 QBJ 0084 BQ 18 QB 09 BQ 041 BQ 11 BQ 028 BQ 0000064 Q B J 0018 QB0000021 BJQ 0024 BQ 12 BQ 016 QB 016 BQ 21 BQ 007 B 0000027 BJQ 0006 BQ0000029 U 00063 QB 035 B 0034 QB 0059 B 038 QB 0017 QB 0000028 U 00017 B0000029 U 00014 005 00073 J 0011 008 00057 0000028 U 0000680000029 U 000026 00073 Q 00029 QJ 0011 0012 J 0004 0000028 U 000052

00004186 033412 98563 28296 15075 38735 096431 0000373 006724

EPA 80818082 EPA 80818082 EPA 808180821 1 1

2662 32mgKg mgKg mgKg

SW846 8082 SW846 8082 SW846 8082 SW846 8082 SW846 80820 5 0 0 0

SW846 8082 SW846 8082 SW846 8082 SW846 80820 0 0 2

mgkg mgkg mgkg mgkg mgkg mgkg mgkg mgkg

EPA-22 1668A EPA-22 1668AEPA-22 1668A EPA-22 1668A EPA-22 1668A EPA-22 1668A10 10

EPA-22 1668A10 10 10 1 1

EPA-22 1668A EPA-22 1668A

mgkg mgkg mgkg mgkg mgkg mgkg mgkgmgkg mgkg

1 5

mgkg

Page 25 of 25

AR103839

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved Metals

PCBsPesticides

Other Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcetone 00104 B 0025 U 0025 U 00109 B 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UAcetonitrile nr nr nr nr nr nr nr nr nr nr nr nrAcrolein nr nr nr nr nr nr nr nr nr nr nr nrAcrylonitrile nr nr nr nr nr nr nr nr nr nr nr nrAllyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nrAllyl Chloride nr nr nr nr nr nr nr nr nr nr nr nrBenzene 0005 U 0005 U 0005 U 0005 U 00041 J 0005 U 00042 J 0005 U 0001 U 0001 U 0001 U 0001 UBenzene (2-Methyl-1-Propeny nr nr nr nr nr nr nr nr nr nr nr nrBenzyl Chloride nr nr nr nr nr nr nr nr nr nr nr nrBromoacetone nr nr nr nr nr nr nr nr nr nr nr nrBromobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrBromochloromethaneChlorobromomethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrBromodichloromethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UBromoform 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UBromomethaneMethyl bromide 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U2-Butanone (Methyl Ethyl Ketone) nr nr nr nr 001 U 001 U 001 U 001 U 005 U 005 U 005 U 005 Un-Butylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrsec-Butylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrtert-Butylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrCamphene nr nr nr nr nr nr nr nr nr nr nr nrCarbon Disulfide nr nr nr nr 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 UCarbon Tetrachloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UChlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0003 0001 UChloroethaneEthyl chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0006 0001 U2-ChloroethanolEthylene chlorohydrin nr nr nr nr nr nr nr nr nr nr nr nr2-Chloroethylvinyl Ether 0005 U 0005 U 0005 U 0005 U nr nr nr nr nr nr nr nrChloroform 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UChloromethaneMethyl chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UChloroprene nr nr nr nr nr nr nr nr nr nr nr nr2-Chlorotoluene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr4-Chlorotoluene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrCyclohexane nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 UCyclohexane Butyl- nr nr nr nr nr nr nr nr nr nr nr nr13-Cyclopentadiene nr nr nr nr nr nr nr nr nr nr nr nrDecahydro-naphthalene nr nr nr nr nr nr nr nr nr nr nr nrDibromochloromethaneChlorodibromomethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Utrans-14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr14-Dichloro-2-butene nr nr nr nr nr nr nr nr nr nr nr nr12-Dibromo-3-chloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U12-Dibromoethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U12-Dichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U13-Dichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U14-Dichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UDichlorodifluoromethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U11-Dichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U12-Dichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U11-Dichloroethene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Ucis-12-Dichloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Utrans-12-Dichloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U12-Dichloroethene (Total) nr nr nr nr nr nr nr nr nr nr nr nrDichloromethane nr nr nr nr nr nr nr nr nr nr nr nr12-Dichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U13-Dichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr22-Dichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr13-Dichloro-2-Propanol nr nr nr nr nr nr nr nr nr nr nr nr11-Dichloropropene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrcis-13-Dichloropropene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 Utrans-13-Dichloropropene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U13-Dichloropropylene nr nr nr nr nr nr nr nr nr nr nr nr1234-Diepoxybutane nr nr nr nr nr nr nr nr nr nr nr nr12-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr13-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr16-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr23-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr26-Dimetyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr26-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr35-Dimethyl Octane nr nr nr nr nr nr nr nr nr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

yes yes yes yes yes yes yes yes yes yes yesno no no noyes yes yes no yes yes yes yesno no no noCN only CN only CN only no yes yes yes yesno no no noyes yes yes no yes yes yes yes

no no no noyes yes yes no yes yes yes yesno no no nono no no no no no no no

EPA 8260 EPA 8260 EPA 8260EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 82601 1 1 1Not Reported Not Reported Not Reported Not Reported

NA NA NA NANA NA NA NA NA NA NA NAmgL mgL mgL mgLmgL mgL mgL mgL mgL mgL mgL mgL

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

Page 1 of 15

AR103840

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag14-Dioxane nr nr nr nr nr nr nr nr nr nr nr nrDodecane 6-Methyl- nr nr nr nr nr nr nr nr nr nr nr nrEthanol nr nr nr nr nr nr nr nr nr nr nr nrEthylbenzene 0005 U 0005 U 0005 U 0005 U 00049 J 00039 J 00049 J 0005 U 0001 U 0001 U 0001 U 0001 U1-Ethyl-23-Dimethyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr4-Ethyl-12-Dimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-2-Methyl-Benzene nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-3-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nr1-Ethyl-4-Methylcyclohexane nr nr nr nr nr nr nr nr nr nr nr nrEthylene Oxide nr nr nr nr nr nr nr nr nr nr nr nrEthylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nrEpichlorohydrin nr nr nr nr nr nr nr nr nr nr nr nrHexachlorobutadiene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrHexane nr nr nr nr nr nr nr nr nr nr nr nr2-Hexanone nr nr nr nr 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U2-Hydroxypropionitrile nr nr nr nr nr nr nr nr nr nr nr nrIsobutyl alcohol nr nr nr nr nr nr nr nr nr nr nr nrIsopropylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0002 J 0005 U 0005 U 0001 U 0001 U 0003 0001 Up-Isopropyl Toluene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrMalononitrile nr nr nr nr nr nr nr nr nr nr nr nrMethacrylonitrile nr nr nr nr nr nr nr nr nr nr nr nrMethyl Acetate nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 UMethylcyclohexane nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 U1-Methyl-2- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-3- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nr1-Methyl-4- Benzene (1 Methy nr nr nr nr nr nr nr nr nr nr nr nrMethylene Bromide nr nr nr nr nr nr nr nr nr nr nr nrMethylene Chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U1-Methyl-indan nr nr nr nr nr nr nr nr nr nr nr nrMethyl IodideIodomethane nr nr nr nr nr nr nr nr nr nr nr nrMethylmethacrylate nr nr nr nr nr nr nr nr nr nr nr nr2-Methyl-Naphthalene nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-Nonane nr nr nr nr nr nr nr nr nr nr nr nr4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) 0005 U 0005 U 0005 U 0005 U 001 U 001 U 001 U 001 U 001 U 001 U 001 U 001 UO-(2-Methyl Propyl Hydroxylamine nr nr nr nr nr nr nr nr nr nr nr nrMethyl-t-Butyl Ether 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 001 U 001 U 001 UNaphthalene 0005 U 0005 U 0005 U 0005 U 002 00049 J 0019 0005 U nr nr nr nrNaphthalene decahydro- trans- nr nr nr nr nr nr nr nr nr nr nr nrPentachloroethane nr nr nr nr nr nr nr nr nr nr nr nrPropargyl Alcohol nr nr nr nr nr nr nr nr nr nr nr nrPropiolactone nr nr nr nr nr nr nr nr nr nr nr nrPropionitrile nr nr nr nr nr nr nr nr nr nr nr nrPropylamine nr nr nr nr nr nr nr nr nr nr nr nrn-Propylbenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrStyrene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U1112-Tetrachloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr1122-Tetrachloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UTetrachloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U1245-Tetramethylbenzene nr nr nr nr nr nr nr nr nr nr nr nrToluene 0005 U 0005 U 0005 U 0005 U 0013 00031 J 0013 0005 U 0001 U 0001 U 0001 U 0001 U123-Trichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nr124-Trichlorobenzene 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U111-Trichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U112-Trichloroethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 UTrichloroethene nr nr nr nr 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U11 2 - Trichloro -1 2 2 -trifluoroethane nr nr nr nr nr nr nr nr 0001 U 0001 U 0001 U 0001 UTrichlorofluoromethane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U123-Trichloropropane 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U nr nr nr nrTridecane nr nr nr nr nr nr nr nr nr nr nr nr124-Trimethylbenzene nr nr nr nr nr nr nr nr nr nr nr nr123-Trimethylbenzene 0005 U 0005 U 0005 U 0005 U 0011 00039 J 0012 0005 U nr nr nr nr135-Trimethylbenzene 0005 U 0005 U 0005 U 0005 U 00069 0005 U 00073 0005 U nr nr nr nr234-Trimethylhexane nr nr nr nr nr nr nr nr nr nr nr nrVinyl Acetate nr nr nr nr nr nr nr nr nr nr nr nrVinyl chloride 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0005 U 0001 U 0001 U 0001 U 0001 U m+p-Xylenes nr nr nr nr 0021 00047 J 0021 0005 U nr nr nr nro-Xylene nr nr nr nr 0012 00026 J 0012 0005 U nr nr nr nrXylenes (Total) 001 U 001 U 001 U 001 U nr nr nr nr 0015 U 0015 U 0015 U 0015 U

Holding time exceeded Holding time exceeded Holding time exceeded Holding time exceeded

EPA 8260 EPA 8260 EPA 8260Not Reported

EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260Not Reported Not Reported Not Reported 1 1 1 1

NA NA NA NA NA NA NA NA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL mgL

Page 2 of 15

AR103841

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

Analyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAcenaphthene 001 U 0001 J 001 U 001 UAcenaphthylene 001 U 001 U 001 U 001 UAcetophenone 001 U 001 U 001 U 001 UAnthracene 001 U 001 U 001 U 001 UAtrazine 001 U 001 U 001 U 001 UBenzaldehyde nr nr nr nrBenzo(a)Anthracene 001 U 001 U 001 U 001 UBenzo(a)Pyrene 001 U 001 U 001 U 001 UBenzo(b)fluoranthene 001 U 001 U 001 U 001 UBenzo(ghi)Perylene 001 U 001 U 001 U 001 UBenzo(k)fluoranthene 001 U 001 U 001 U 001 UBenzylbutylphthalateButylbenzylphthalate 001 U 001 U 001 U 001 U11-Biphenyl 001 U 001 U 001 U 001 U4-Bromophenyl-phenylether 001 U 001 U 001 U 001 UCaprolactam 001 U 001 U 001 U 001 UCarbazole 001 U 001 U 001 U 001 U4-Chloroaniline 001 U 001 U 001 U 001 Ubis(2-Chloroethoxy)Methane 001 U 001 U 001 U 001 Ubis(2-Chloroethyl)Ether 001 U 001 U 001 U 001 Ubis(2-Chloroisopropyl)Ether 001 U 001 U 001 U 001 U4-Chloro-3-Methylphenol 001 U 001 U 001 U 001 U2-Chloronaphthalene 001 U 001 U 001 U 001 U2-Chlorophenol 001 U 001 U 001 U 001 U4-Chlorophenyl-phenylether 001 U 001 U 001 U 001 UChrysene 001 U 001 U 001 U 001 UDibenzo(ah)Anthracene 001 U 001 U 001 U 001 UDibenzofuran 001 U 001 U 001 U 001 U12-Dichlorobenzene nr nr nr nr13-Dichlorobenzene nr nr nr nr14-Dichlorobenzene nr nr nr nr33-Dichlorobenzidine 001 U 001 U 001 U 001 U24-Dichlorophenol 001 U 001 U 001 U 001 UDiethylphthalate 004442 B 001 U 001 U 001 U 001 U24-Dimethylphenol 001 U 001 U 001 U 001 UDimethyl Phthalate 001 U 001 U 001 U 001 UDi-n-Butylphthalate 001 U 001 U 001 U 001 U46-Dinitro-2-Methylphenol 0025 U 0025 U 0025 U 0025 U24-Dinitrophenol 0025 U 0025 U 0025 U 0025 U24-Dinitrotoluene 001 U 001 U 001 U 001 U26-Dinitrotoluene 001 U 001 U 001 U 001 UDi-n-Octyl Phthalate 001 U 001 U 001 U 001 Ubis(2-Ethylhexyl)Phthalate 001443 001 U 001 U 001 U 001 UFluoranthene 001 U 001 U 001 U 001 UFluorene 001 U 001 U 001 U 001 UHexachlorobenzene 001 U 001 U 001 U 001 UHexachlorobutadiene 001 U 001 U 001 U 001 UHexachlorocyclopentadiene 001 U 001 U 001 U 001 UHexachloroethane 001 U 001 U 001 U 001 UIndeno(123-cd)Pyrene 001 U 001 U 001 U 001 UIsophorone 001 U 001 U 001 U 001 U2-Methylnaphthalene 001 U 0003 J 001 U 001 U2-Methylphenol 001 U 001 U 001 U 001 U4-Methylphenol 001 U 001 U 001 U 001 UMethylMercury nr nr nr nrNaphthalene 001 U 0004 J 001 U 001 U2-Nitroaniline 001 U 001 U 001 U 001 U3-Nitroaniline 0025 U 0025 U 0025 U 0025 U4-Nitroaniline 001 U 001 U 001 U 001 UNitrobenzene 001 U 001 U 001 U 001 U2-Nitrophenol 001 U 001 U 001 U 001 U4-Nitrophenol 0025 U 0025 U 0025 U 0025 UN-Nitroso-Di-n-Propylamine 001 U 001 U 001 U 001 UN-Nitrosodiphenylamine 001 U 001 U 001 U 001 U22-Oxybis(1-Chloropropane) nr nr nr nrPentachlorophenol 0025 U 0025 U 0025 U 0025 UPhenanthrene 001 U 001 U 001 U 001 UPhenol 001 U 001 U 001 U 001 UPyrene 001 U 001 U 001 U 001 U124-Trichlorobenzene nr nr nr nr245-Trichlorophenol 0025 U 0025 U 0025 U 0025 U246-Trichlorophenol 001 U 001 U 001 U 001 U

EPA 625 EPA 625 EPA 625 EPA 8270 EPA 8270 EPA 8270 EPA 8270

NA NA NA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL

Incomplete lab report No other SVOCs detected

Incomplete lab report No other SVOCs detected

Incomplete lab report No SVOCs detected

Page 3 of 15

AR103842

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum nr nr nr nr nr nr nr nr 016 021 018 033Antimony nr nr nr nr nr nr nr nr 0006 U 0006 U 0006 U 0006 UArsenic nr nr nr nr nr nr nr nr 0035 0025 U 0025 U 0064Barium nr nr nr nr nr nr nr nr 053 054 063 024Beryllium nr nr nr nr nr nr nr nr 0004 U 0004 U 0004 U 0004 UCadmium nr nr nr nr nr nr nr nr 0005 U 0005 U 0005 U 0005 UCalcium nr nr nr nr nr nr nr nr 246 128 103 39Chromium nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UChromium III nr nr nr nr nr nr nr nr nr nr nr nrChromium VI nr nr nr nr nr nr nr nr nr nr nr nrCobalt nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UCopper nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UIron nr nr nr nr nr nr nr nr 09 158 113 599Lead nr nr nr nr nr nr nr nr 001 U 001 U 001 U 001 UMagnesium nr nr nr nr nr nr nr nr 100 112 100 53Manganese nr nr nr nr nr nr nr nr 04 022 04 099Mercury nr nr nr nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UNickel nr nr nr nr nr nr nr nr 0064 0032 0025 U 0025 UPotassium nr nr nr nr nr nr nr nr 38 37 42 5 USelenium nr nr nr nr nr nr nr nr 0005 U 0005 U 0005 U 0005 USilver nr nr nr nr nr nr nr nr 001 U 001 U 001 U 001 USodium nr nr nr nr nr nr nr nr 790 520 105 560Thallium nr nr nr nr nr nr nr nr 0002 U 0002 U 0002 U 0002 UTin nr nr nr nr nr nr nr nr nr nr nr nrVanadium nr nr nr nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UZinc nr nr nr nr nr nr nr nr 0031 005 0025 0025 UCyanide 0005 U 0005 U 0005 U nr nr nr nr nr

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAluminum 05 U 05 U 05 U nr nr nr nr nr 0025 U 0025 U 0025 U 0041Antimony 005 U 005 U 005 U nr nr nr nr nr 0006 U 0006 U 0006 U 0006 UArsenic 005 U 005 U 005 U nr nr nr nr nr 0035 0025 U 0025 U 0039Barium 05 U 05 U 05 U nr nr nr nr nr 059 047 048 014Beryllium 005 U 005 U 005 U nr nr nr nr nr 0004 U 0004 U 0004 U 0004 UCadmium 01 U 01 U 01 U nr nr nr nr nr 0005 U 0005 U 0005 U 0005 UCalcium 1 U 127 246 nr nr nr nr nr 244 136 101 42Chromium 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UCobalt 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UCopper 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UIron 05 U 05 U 05 U nr nr nr nr nr 06 01 U 105 12Lead 025 U 025 U 025 U nr nr nr nr nr 001 U 001 U 001 U 001 UMagnesium 1 U 831 266 nr nr nr nr nr 1000 119 100 59Manganese 005 U 01 005 U nr nr nr nr nr 02 023 039 1Mercury 0002 U 0002 U 0002 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UNickel 01 U 01 U 01 U nr nr nr nr nr 0061 0035 0025 0025 UPotassium 1 U 702 53 nr nr nr nr nr 48 48 40 5 USelenium 005 U 005 U 005 U nr nr nr nr nr 0005 U 0005 U 0005 U 0005 USilver 005 U 005 U 005 U nr nr nr nr nr 001 U 001 U 001 U 001 USodium 1 U 412 851 nr nr nr nr nr 790 590 107 620Thallium 0025 U 0025 U 0025 U nr nr nr nr nr 0002 U 0002 U 0002 U 0002 UVanadium 01 U 01 U 01 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 UZinc 005 U 005 U 005 U nr nr nr nr nr 0025 U 0025 U 0025 U 0025 U

EPA 2008 EPA 2008 EPA 2008 EPA 2008

NA NA NANA NA NA NA NA NAmgL mgL mgLmgL mgL mgL mgL mgL mgL

EPA 2008 EPA 2008 EPA 2008 EPA 2008Not Reported Not Reported Not Reported

NA NA NA NA NA NA NAmgL mgL mgL mgL mgL mgL mgL

Page 4 of 15

AR103843

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

Sauer Dump Sauer Dump Sauer Dump Sauer DumpSauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpGW-00 GW-1a GW-2a Trip BlankFB-1 GW-1 GW-2 TB-1 MW-1 MW-2 MW-3 MW-4

99121530 99121528 99121529 99121531A900929 A900916 A900917 A900930M700304 M700302 M700303A900959 A900957 A900958

121599 121599 121599 121599092999 092999 092999 092999 122701 122701 122701 122701MDE MDE MDE MDEMDE MDE MDE MDE ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater WaterWater Groundwater Groundwater Water Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous AqueousAqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Dup Of GW-2a Resampling of GW-1 Resampling of GW-2 Trip BlankField Blank Trip Blank

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyte Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result FlagAldrin 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ualpha-BHC 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ubeta-BHC 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Udelta-BHC 00005 U 00005 U 000008 U 000008 U 000008 U 000008 Ugamma-BHC (Lindane) 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ualpha-Chlordane 00001 U nr nr nr nr nr nr nr 000008 U 000008 U 000008 U 000008 Ugamma-Chlordane nr nr nr nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UChlordane total nr 00005 U 00005 U nr nr nr nr nr nr nr nr nr44-DDD 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 U44-DDE 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 U44-DDT 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UDieldrin 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndosulfan I 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndosulfan II 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndosulfan sulfate 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndrin 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndrin aldehyde 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UEndrin ketone 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UHeptachlor 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UHeptachlor epoxide 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UMethoxychlor 00001 U 00005 U 00005 U nr nr nr nr nr 000008 U 000008 U 000008 U 000008 UToxaphene 005 U 0005 U 0005 U nr nr nr nr nr 0002 U 0002 U 0002 U 0002 UAroclor-1016 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1221 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1232 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1242 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1248 nr nr nr nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1254 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UAroclor-1260 0005 U 00005 U 00005 U nr nr nr nr nr 00005 U 00005 U 00005 U 00005 UTotal PCBs

Other Analytes PCB HomologuesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

EPA 608 EPA 608 EPA 608 EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082Not reported Not Reported Not Reported

NA NA NANA NA NA NA NA NA NAmgL mgL mgLmgL mgL mgL mgL mgL mgL mgL

Page 5 of 15

AR103844

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCsSVOCsInorganicsTotal MetalsDissolved Metals

PCBsPesticides

Other Analytes

VOCsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAcetoneAcetonitrileAcroleinAcrylonitrileAllyl AlcoholAllyl ChlorideBenzeneBenzene (2-Methyl-1-PropenyBenzyl ChlorideBromoacetoneBromobenzeneBromochloromethaneChlorobromomethaneBromodichloromethaneBromoformBromomethaneMethyl bromide2-Butanone (Methyl Ethyl Ketone)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneCampheneCarbon DisulfideCarbon TetrachlorideChlorobenzeneChloroethaneEthyl chloride2-ChloroethanolEthylene chlorohydrin2-Chloroethylvinyl EtherChloroformChloromethaneMethyl chlorideChloroprene2-Chlorotoluene4-ChlorotolueneCyclohexaneCyclohexane Butyl-13-CyclopentadieneDecahydro-naphthaleneDibromochloromethaneChlorodibromomethanetrans-14-Dichloro-2-butene14-Dichloro-2-butene12-Dibromo-3-chloropropane12-Dibromoethane12-Dichlorobenzene13-Dichlorobenzene14-DichlorobenzeneDichlorodifluoromethane11-Dichloroethane12-Dichloroethane11-Dichloroethenecis-12-Dichloroethenetrans-12-Dichloroethene12-Dichloroethene (Total)Dichloromethane12-Dichloropropane13-Dichloropropane22-Dichloropropane13-Dichloro-2-Propanol11-Dichloropropenecis-13-Dichloropropenetrans-13-Dichloropropene13-Dichloropropylene1234-Diepoxybutane12-Dimetyl-Naphthalene13-Dimetyl-Naphthalene16-Dimetyl-Naphthalene23-Dimetyl-Naphthalene26-Dimetyl-Naphthalene26-Dimethyl Octane35-Dimethyl Octane

Result Flag Result Flag Result Flag Result Flag001 U 001 U 005 U 005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U005 U 005 U 005 U 005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

yes yes yes yesyes yes yes yesyes yes yes yesyes yes yes yes

yes yes yes yesno no no no

EPA 8260 EPA 8260 EPA 8260 EPA 8260

NA NA NA NAmgL mgL mgL mgL

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous

no nono

Aqueous

no no

no

nono no no

no

nono no no no

no

yes - PCB Congeners only yes - PCB Congeners only

nono no

yes - PCB Congeners only yes - PCB Congeners onlyyes - PCB Congeners only yes - PCB Congeners only

nono no no no nono no

no no no noyes - PCB Congeners only

no no no

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

nonono

Yes - Lead Only

Yes - PCBs onlyYes - PCBs homologues

Page 6 of 15

AR103845

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

VOCs (cont)Analytical MethodDilution Factor MoistureUnitsNotesAnalyte14-DioxaneDodecane 6-Methyl-EthanolEthylbenzene1-Ethyl-23-Dimethyl-Benzene4-Ethyl-12-Dimethylbenzene1-Ethyl-2-Methyl-Benzene1-Ethyl-3-Methylcyclohexane1-Ethyl-4-MethylcyclohexaneEthylene OxideEthylmethacrylateEpichlorohydrinHexachlorobutadieneHexane2-Hexanone2-HydroxypropionitrileIsobutyl alcoholIsopropylbenzenep-Isopropyl TolueneMalononitrileMethacrylonitrileMethyl AcetateMethylcyclohexane1-Methyl-2- Benzene (1 Methy1-Methyl-3- Benzene (1 Methy1-Methyl-4- Benzene (1 MethyMethylene BromideMethylene Chloride1-Methyl-indanMethyl IodideIodomethaneMethylmethacrylate2-Methyl-Naphthalene4-Methyl-Nonane4-Methyl-2-Pentanone (Methyl Isobutyl Ketone)O-(2-Methyl Propyl HydroxylamineMethyl-t-Butyl EtherNaphthaleneNaphthalene decahydro- trans-PentachloroethanePropargyl AlcoholPropiolactonePropionitrilePropylaminen-PropylbenzeneStyrene1112-Tetrachloroethane1122-TetrachloroethaneTetrachloroethene1245-TetramethylbenzeneToluene123-Trichlorobenzene124-Trichlorobenzene111-Trichloroethane112-TrichloroethaneTrichloroethene11 2 - Trichloro -1 2 2 -trifluoroethaneTrichlorofluoromethane123-TrichloropropaneTridecane124-Trimethylbenzene123-Trimethylbenzene135-Trimethylbenzene234-TrimethylhexaneVinyl AcetateVinyl chloride m+p-Xyleneso-XyleneXylenes (Total)

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flagnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 Unr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0002 JBnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 005 U 005 Unr nr nr nr

001 U 0002 005 U 005 Unr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nr

0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nr0001 U 0001 U 0005 U 0005 U

nr nr nr nr0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U0001 U 0001 U 0005 U 0005 U

nr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nrnr nr nr nr

0001 U 0001 U 0005 U 0005 Unr nr nr nrnr nr nr nr

0015 U 0015 U 0075 U 0075 U

EPA 8260 EPA 8260 EPA 8260 EPA 8260

NA NANA NAmgL mgL mgL mgL

Page 7 of 15

AR103846

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

SVOCsAnalytical MethodDilution Factor MoistureUnits

Notes

AnalyteAcenaphtheneAcenaphthyleneAcetophenoneAnthraceneAtrazineBenzaldehydeBenzo(a)AnthraceneBenzo(a)PyreneBenzo(b)fluorantheneBenzo(ghi)PeryleneBenzo(k)fluorantheneBenzylbutylphthalateButylbenzylphthalate11-Biphenyl4-Bromophenyl-phenyletherCaprolactamCarbazole4-Chloroanilinebis(2-Chloroethoxy)Methanebis(2-Chloroethyl)Etherbis(2-Chloroisopropyl)Ether4-Chloro-3-Methylphenol2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherChryseneDibenzo(ah)AnthraceneDibenzofuran12-Dichlorobenzene13-Dichlorobenzene14-Dichlorobenzene33-Dichlorobenzidine24-DichlorophenolDiethylphthalate24-DimethylphenolDimethyl PhthalateDi-n-Butylphthalate46-Dinitro-2-Methylphenol24-Dinitrophenol24-Dinitrotoluene26-DinitrotolueneDi-n-Octyl Phthalatebis(2-Ethylhexyl)PhthalateFluorantheneFluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(123-cd)PyreneIsophorone2-Methylnaphthalene2-Methylphenol4-MethylphenolMethylMercury Naphthalene2-Nitroaniline3-Nitroaniline4-NitroanilineNitrobenzene2-Nitrophenol4-NitrophenolN-Nitroso-Di-n-PropylamineN-Nitrosodiphenylamine22-Oxybis(1-Chloropropane) PentachlorophenolPhenanthrenePhenolPyrene124-Trichlorobenzene245-Trichlorophenol246-Trichlorophenol

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flag001 U 0001 J 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nr

001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nrnr nr nr nrnr nr nr nr

001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U0025 U 0025 U 0025 U 0025 U0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nr

001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 Unr nr nr nr

0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U001 U 001 U 001 U 001 U001 U 001 001 U 001 Unr nr nr nr

0025 U 0025 U 0025 U 0025 U001 U 001 U 001 U 001 U

EPA 8270 EPA 8270 EPA 8270 EPA 8270

NA NA NA NAmgL mgL mgL mgL

Page 8 of 15

AR103847

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag0048 039 0005 U 0005 U nr0006 U 0006 U 0006 U 0006 U nr0025 U 0035 0005 U 0005 U nr032 056 0005 U 0011 nr

0004 U 0004 U 0004 U 0004 U nr0005 U 0005 U 0001 U 0001 U nr131 242 5 U 5 U nr

0025 U 0025 U 0005 U 0005 U nrnr nr nr nr nrnr nr nr nr nr

0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0005 U 0005 U nr

27 11 01 U 01 U nr0012 0015 0002 U 0002 U nr

82 95 5 U 5 U nr091 038 0005 U 0005 U nr

00005 U 00005 U 00005 U 00005 U nr0034 0061 0005 U 0005 U nr

15 36 5 U 5 U nr0005 U 0005 U 0005 U 0005 U nr001 U 001 U 0002 U 0013 nr85 764 5 U 5 U nr

0002 U 0002 U 0002 U 0002 U nrnr nr nr nr nr

0025 U 0025 U 0005 U 0005 U nr0025 U 0038 0008 0009 nr

nr

Result Flag Result Flag Result Flag Result Flag Result Flag0025 U 0025 U 0017 0007 nr0006 U 0006 U 0006 U 0006 U nr0025 U 0033 0005 U 0005 U nr02 057 0005 U 0005 U nr

0004 U 0004 U 0004 U 0004 U nr0005 U 0005 U 0001 U 0001 U nr126 246 5 U 5 U nr

0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0005 U 0005 U nr01 U 01 U 01 U 01 U nr001 U 001 U 0002 U 0002 U 3 U82 97 5 U 5 U nr

087 027 0005 U 0005 U nr00005 U 00005 U 00005 U 00005 U nr003 0069 0005 U 0005 U nr15 40 5 U 5 U nr

0005 U 0005 U 0005 U 0005 U nr001 U 001 U 0002 U 0002 U nr85 789 5 U 5 U nr

0002 U 0002 U 0002 U 0002 U nr0025 U 0025 U 0005 U 0005 U nr0025 U 0025 U 0008 001 nr

EPA 2008 EPA 2008 EPA 2008 EPA 2008

NA NA NA NAmgL mgL mgL mgL

EPA 2008 EPA 2008 EPA 2008 EPA 2008

NA NA NA NAmgL mgL mgL mgL

SW846 6010B1

ugL

SW846 6010B1

ugL

Page 9 of 15

AR103848

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other Analytes PCB HomologuesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-5 MW-A FB-1 TB-1

122701 122701 122701 122701ENSAT ENSAT ENSAT ENSAT

Groundwater Groundwater Groundwater GroundwaterAqueous Aqueous Aqueous Aqueous

Dup Of MW-1 Field Blank Trip Blank

Sauer Dump Sauer Dump

081202 081202

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-1 MW-2 MW-3 MW-4 MW-5 FB(FIELD BLANK) LAB BLANK

ENSAT ENSAT081202 081202 081202 081202 081202

ENSATGroundwater Groundwater Groundwater Groundwater

ENSAT ENSAT ENSAT ENSATGroundwater

Aqueous Aqueous Aqueous Aqueous AqueousField Blank Lab Blank

Aqueous Aqueous

Sauer DumpMW-2-F

C7B080261002

020707Malcolm PirnieGroundwater

Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr

nr nr nr nr nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr000008 U 000008 U 000008 U 000008 U nr0002 U 0002 U 0002 U 0002 U nr00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U00005 U 00005 U 00005 U 00005 U 095 U

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag3090 88300 39300 5430 1970 286 183 U 63 BQ

33300 192000 270000 133000 8130 1270 107 91 BQ45700 85900 207000 164000 9860 1320 63 26 BQ65800 32700 143000 40800 7930 447 412 U 63 BQ83400 10200 24100 3730 2170 235 133 046 QB64900 5370 9300 1400 1640 392 774 0069 QJB30300 2000 2750 361 836 107 903 004 U8230 607 376 716 182 686 U 741 U 004 U1520 119 298 821 272 55 U 567 U 004 U135 162 56 376 U 126 451 U 431 U 004 U

336000 417000 697000 349000 32800 4060 117 186829

pgLpgL pgL pgL pgL pgL pgL

NANA NA NA NA NA NA NANA NA NA NA NA NA

EPA 1668A EPA 1668A EPA 1668A EPA 1668A EPA 1668A EPA 1668A EPA 1668A

ngL

5EPA-22 1668A

EPA 80818082 EPA 80818082 EPA 80818082 EPA 80818082

NA NA NA NAmgL mgL mgL mgL

SW846 80821

ugL

Page 10 of 15

AR103849

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

InorganicsTotal MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumChromium III Chromium VI CobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumTinVanadiumZincCyanide

Dissolved MetalsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

MW-4-FSauer Dump Sauer Dump

C7B130171004

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-2-T MW-1R-F MW-1R-T MW-3-F MW-3-T MW-4-T MW-5-F MW-5-T

C7B080261001 C7B090142002 C7B090142001 C7B090142004 C7B090142003 C7B130171003 C7B130171002

021207020807 020807

C7B130171001

020707 020807 020807 021207 021207 021207Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous

Malcolm PirnieGroundwater Groundwater

Aqueous AqueousGroundwater

Malcolm PirnieGroundwater Groundwater GroundwaterGroundwater Groundwater Groundwater

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr3 U nr 3 U nr 17 J nr 26 J nr 57nr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr 3 U nr 3 U nr 3 U nr 3 U nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr

1SW846 6010B SW846 6010B

1 1SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B

1 1 1 1 1 1

ugL ugL ugL ugL ugL ugLugL ugL ugL

1SW846 6010B SW846 6010B

1 1SW846 6010B SW846 6010B SW846 6010B SW846 6010BSW846 6010B SW846 6010B SW846 6010B

1 1 1 1 1 1

ugL ugL ugL ugL ugL ugLugL ugL ugL

Page 14 of 15

AR103850

Table A5Groundwater Analytical Data - 1999 to 2007

Former Sauer Dump and Salvage YardDundalk Baltimore County Maryland

SiteSample IdentificationAlt Sample IdentificationAlt Sample IdentificationVOCs and SVOCsAlt Sample IdentificationInorgAlt Sample IdentificationPCBsDate of Sample CollectionSamplerSample TypeMatrixField QC

PesticidesPCBsAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteAldrinalpha-BHCbeta-BHCdelta-BHCgamma-BHC (Lindane)alpha-Chlordanegamma-ChlordaneChlordane total44-DDD44-DDE44-DDTDieldrinEndosulfan IEndosulfan IIEndosulfan sulfateEndrinEndrin aldehydeEndrin ketoneHeptachlorHeptachlor epoxideMethoxychlorToxapheneAroclor-1016Aroclor-1221Aroclor-1232Aroclor-1242Aroclor-1248Aroclor-1254Aroclor-1260Total PCBs

Other Analytes PCB HomologuesAnalytical MethodDilution Factor MoistureUnitsNotesAnalyteMonochlorobiphenyl (totalDichlorobiphenyl (totalTrichlorobiphenyl (totalTetrachlorobiphenyl (totalPentachlorobiphenyl (totalHexachlorobiphenyl (totalHeptachlorobiphenyl (totalOctachlorobiphenyl (totalNonachlorobiphenyl (totalDecachlorobiphenyl (totalTotal PCB Homologs

MW-4-FSauer Dump Sauer Dump

C7B130171004

Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer Dump Sauer DumpMW-2-T MW-1R-F MW-1R-T MW-3-F MW-3-T MW-4-T MW-5-F MW-5-T

C7B080261001 C7B090142002 C7B090142001 C7B090142004 C7B090142003 C7B130171003 C7B130171002

021207020807 020807

C7B130171001

020707 020807 020807 021207 021207 021207Malcolm Pirnie Malcolm PirnieMalcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie Malcolm Pirnie

Aqueous

Malcolm PirnieGroundwater Groundwater

Aqueous AqueousGroundwater

Malcolm PirnieGroundwater Groundwater GroundwaterGroundwater Groundwater Groundwater

Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flagnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nrnr nr nr nr nr nr nr nr nr1 U 1 U 1 U 095 U 099 U 099 U 084 J 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U1 U 1 U 1 U 095 U 099 U 099 U 097 U 099 U 096 U

084

Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag Result Flag80 B 21 B 41 B 44 B 45 B 2 BQ 063 BQ 013 BQ 026 BQ

130 BQ 14 QB 37 BQ 25 QB 34 BQ 140 QB 430 B 051 QB 14 QB50 B 13 B 81 B 20 BQ 40 BQ 95 B 880 BQ 034 QB 17 BQ19 BQ 33 QB 63 BQ 13 BQ 35 BQ 13 BQ 350 BQ 032 QB 26 QB23 QB 09 QB 74 QB 12 QB 58 QB 021 QB 21 BQ 012 QJB 056 QB065 QB 031 QB 50 BQ 029 QB 24 QB 0035 JQB 65 QB 0086 QJB 047 QB017 QB 005 QJB 16 QB 0081 JQB 093 QB 0038 U 14 QB 0031 QJB 022 QB0051 JQ 004 U 42 Q 0038 U 023 Q 0038 U 032 Q 0039 U 0028 J001 J 004 U 093 0038 U 0018 QJ 0038 U 0055 Q 0039 U 0039 U004 U 001 QJ 011 0038 U 0038 U 0038 U 00075 QJ 0039 U 0039 U

282181 3367 33034 63971 122878 250245 16899125 1537 7238

ngLngLngLngL

10EPA-22 1668AEPA-22 1668A

1

ngLngL ngL

1EPA-22 1668AEPA-22 1668A

1

ngL

10EPA-22 1668A

ngL

1EPA-22 1668AEPA-22 1668A

5

1SW846 8082 SW846 8082

1 1SW846 8082 SW846 8082 SW846 8082 SW846 8082SW846 8082 SW846 8082 SW846 8082

ugL ugL

1 1 1 1 1 1

ugL ugL ugLugLugL ugL ugL

Page 15 of 15

AR103851

APPENDIX B-1

REMOVAL TECHNOLOGY COST ESTIMATES ALTERNATIVE 2

Surface Cap Excavation and Off-Site Disposal

AR103852

Appendix B-1Surface Cap Excavation and Off-Site Disposal Cost Estimate

Alternative 2

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceMobilizationWork Plans Lump Sum 1 50000$ 50000$ 50000$ Engineering JudgmentEquip Contractor Mobilization Lump Sum 1 40000$ 40000$ 40000$ Engineering JudgmentInstall Runoff Controls(silt fence and turbidity curtain) Linear Feet 1195 079$ 944$ 1282$ 0227007041000 Means (2005)Site Survey Acre 409 350000$ 14307$ 14307$ 02 21 1309 0100 Means (2008)

Site PreparationRemove surface debris transport to disposal

Non-hazardous disposal ton 50 8784$ 4392$ 5963$ 33 19 7269 Means (2005)Hazardous disposal Cubic Yard 296 39400$ 116568$ 158276$ Vendor Quote

Clearing and Grubbing (non-river areas) Acre 409 476000$ 19457$ 19457$ Engineering JudgmentNon-hazardous disposal of cleared vegetation ton 598 5000$ 29876$ 29876$ Engineering Judgment

Off-site disposal of grubbed vegetation (assume PRG not met) tons 372 39400$ 146759$ 199269$ Vendor Quote

Site ExcavationSoil (and Sediment Outside of Back River) Excavation

Parcel 425 Cubic Yard 1642 187$ 3078$ 4179$ 0222002380260 Means (2005)Cost Bkp tab for qtyResidential Parcels 137 295464 503532 Cubic Yard 4612 187$ 8645$ 11738$ 0222002380260 Means (2005)

Wetlands Cubic Yard 7740 1290$ 99843$ 123805$ 023154240950 Means (2006)Back River Sampling to assess need for excavation Each 1 10563$ 10563$ 10563$ See Back R Sed Samplng tab

Excavation Screening (all areas)Screening samples at 2-foot excavation depth Each 27 37000$ 9990$ 9990$ Sampling Cost tabScreening samples at 4-foot excavation depth Each 11 37000$ 4070$ 4070$ Sampling Cost tab

Transport soil and sediment to staging areas Cubic Yard 13994 368$ 51496$ 51496$ 31 23 2318 0020 Means (2008)Confirmation Sampling cy per sample [ replaced 20acre excavated] Each 50 37000$ 18500$ 18500$ Sampling Cost tabTransport soil and sediment to capping area Cubic Yard 6176 368$ 22727$ 22727$ 31 23 2318 0020 Means (2008)Verification Screening (all areas) based on grid network

Parcel 425 Each 58 37000$ 21460$ 21460$ Sampling Cost tabResidential Parcels 137 295464 503532 Each 143 37000$ 52910$ 52910$ Sampling Cost tab

Wetlands Each 42 37000$ 15540$ 15540$ Sampling Cost tabDust Suppression Square Foot 125816 001$ 1258$ 1708$ 33 08 0585 Means (2005) water by truckSoil Characterization (TCLP 1 per 200 CY) Each 9 13000$ 1170$ 1170$ HGL Langley R Bird Treatment of water from sediments - (Assume 50water content sediments Gallons 781560 001$ 4924$ 7145$ EPA FRTR (2002)

OFF-Site DisposalHazardous Waste Landfill Disposal (PCB 50 -500 ppm) ton 2803 39400$ 1104227$ 1104227$ Vendor Quote

Incineration (PCB gt500 ppm) ton 475 78000$ 370396$ 370396$ Vendor Quote

Soil Cover Alternative 2

Sauer Dump Site Sheet 1 of 3 HydroGeoLogic Inc February 2009

AR103853

Appendix B-1Surface Cap Excavation and Off-Site Disposal Cost Estimate

Alternative 2

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Cap PlacementCap Layers (material and placement no grading)

Top Cover Cubic Yard 2630 2237$ 58830$ 79879$ 18 05 0301 Means (2005)Burrow Barrier Cubic Yard 3481 2000$ 69614$ 69614$ Engineering JudgmentDrainage Layer Cubic Yard 1315 1055$ 13872$ 18835$ 17 03 0430 Means (2005)Low Permeability Barrier - Clay Cubic Yard 4542 2156$ 97934$ 132975$ 33 08 0507 Means (2005)

Cobble Perimeter Boundary Cubic Yard 1148 2000$ 22959$ 22959$ Engineering JudgmentGrading - TSCA Cap Square Yard 19938 1700$ 338939$ 338939$ 31 22 1610 3300 Means (2008)

Initial Grading after Clear and Grub Before Cap Placement Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)Top Cover Grading Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)

Well Abandonment Each 1 7360$ 7360$ 7360$ Engineering Judgment Cost Bkp tabMonitoring Well Modifications Each 7 4000$ 28000$ 28000$ Engineering Judgment

Cap CompletionSeeding and mulching for Vegetation Cover Square Foot 106509 005$ 5219$ 7086$ 0293003080400 Means (2005)Access Controls - Fence Modification Linear Feet 1613 200$ 3226$ 3226$ Engineering JudgmentAccess Controls - Signs Linear Feet 1613 020$ 323$ 323$ 1 sign 500 ft of perimeter $100 installed = $020ftDemobilization Lump Sum 1 20000$ 20000$ 20000$ Engineering JudgmentWetlands Restoration Acres 120 100000$ 119934$ 134465$ Engineering Judgment

Site Grading Square Yard 5805 322$ 18691$ 23177$ 023101000010 Means (2006)Clean Fill Cubic Yard 7740 697$ 53946$ 73248$ 17 03 0422 Means (2005)

Compaction Cubic Yard 7740 300$ 23219$ 31527$ Engineering JudgmentResidential Area Site Restoration

Top Cover Cubic Yard 1996 2237$ 44644$ 60618$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 5672 697$ 39537$ 53683$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 2145 322$ 6908$ 8566$ 023101000010 Means (2006)

Seeding and mulching for Vegetation Cover Square Foot 19307 025$ 4730$ 6422$ 0293003080400 Means (2005) 5 (EJ) for residential area

Subtotal 3085524$ 3565464$ Project SupportEngineering Design 12 of Subtotal 370263$ 415123$ Past Project ExperienceProject Management 10 of Subtotal 308552$ 345935$ Past Project ExperienceConstruction Management 8 of Subtotal 246842$ 276749$ Past Project ExperienceContingencies 15 of Subtotal 462829$ 518904$ EPA 540-R-98-045Back River Excavation Contingency 50 of est cost 250000$ 125000$ Engineering JudgmentCompletion Reports Lump Sum 1 6000000$ 60000$ 60000$ Past Project Experience

Subtotal 1698486$ 1741711$ TOTAL INSTALLED COST 4784010$ 5307175$

Sauer Dump Site Sheet 2 of 3 HydroGeoLogic Inc February 2009

AR103854

Appendix B-1Surface Cap Excavation and Off-Site Disposal Cost Estimate

Alternative 2

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Operation and MaintenancePeriodic Inspection (4yr engr 20 hr ea) Hrs 80 10000$ 8000$ 8000$ Engineering JudgmentBurrowing Animal Control allowance Each 1 250000$ 2500$ 2500$ Engineering JudgmentHydroseeding repair veg cover (10yr) Acre 024 53762$ 131$ 188$ 180504028102002 Means (2004)Fence Repairs (10) Linear Feet 161 1500$ 2419$ 3466$ 17020701 Means + $4ft material allowanceCap RepairsFillRegradingCompaction (5 8 in fills) Cubic Yard 656 1116$ 7319$ 10484$ 17 03 0429 Means (2004)GroundwaterSurface Water Monitoring 1yr 2 ppl 24 hr each hrs 48 10000$ 4800$ 4800$ Engineering JudgmentGroundwaterSurface Water Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentReporting (1yr) Hrs 160 10000$ 16000$ 16000$ Engineering Judgment

Total Annual OampM Cost 43169$ 47438$

Present Value of OampM 663621$ 729236$

TOTAL PROJECT COST 6036410$

Sauer Dump Site Sheet 3 of 3 HydroGeoLogic Inc February 2009

AR103855

APPENDIX B-2

REMOVAL TECHNOLOGY COST ESTIMATES ALTERNATIVE 3

Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment

AR103856

Appendix B-2Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 3

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceMobilizationWork Plans Lump Sum 1 100000$ 100000$ 100000$ Engineering JudgmentEquip Contractor Mobilization Lump Sum 1 75000$ 75000$ 75000$ Engineering JudgmentInstall Runoff Controls(silt fence and turbidity curtain) Linear Feet 1195 079$ 944$ 1282$ 0227007041000 Means (2005)Permitting (NPDES Permit etc) Lump Sum 1 50000$ 50000$ 50000$ Engineering JudgmentSite Survey Acre 409 350000$ 14307$ 14307$ 02 21 1309 0100 Means (2008)System Startup Shakedown Lump Sum 1 25000$ 25000$ 25000$ Engineering Judgment

Site Preparation and ExcavationRemove surface debris transport to disposal

Non-hazardous disposal ton 50 8784$ 4392$ 5963$ 33 19 7269 Means (2005)Hazardous disposal Cubic Yard 296 39400$ 116568$ 158276$ Vendor Quote

Clearing and Grubbing (non-river areas) Acre 467 476000$ 22218$ 22218$ Engineering JudgmentNon-hazardous disposal of cleared vegetation ton 598 5000$ 29876$ 29876$ Engineering Judgment

Off-site disposal of grubbed vegetation (assume PRG not met) tons 372 39400$ 146759$ 199269$ Vendor QuoteSoil (and Sediment Outside of Back River) Excavation

Parcel 425 Cubic Yard 8058 187$ 15105$ 20510$ 0222002380260 Means (2005)Cost Bkp tab for qtyResidential Parcels 137 295464 503532 Cubic Yard 4612 187$ 8645$ 11738$ 0222002380260 Means (2005)

Wetlands Cubic Yard 7740 1290$ 99843$ 123805$ 023154240950 Means (2006)Back River Sampling to assess need for excavation Each 1 $10563 10563$ 10563$ See Back R Sed Samplng tab

Excavation Screening (all areas)Screening samples at 2-foot excavation depth Each 27 37000$ 9990$ 9990$ Sampling Cost tabScreening samples at 4-foot excavation depth Each 11 37000$ 4070$ 4070$ Sampling Cost tab

Transport soil and sediment to staging areas Cubic Yard 20410 368$ 75109$ 75109$ 31 23 2318 0020 Means (2008)Confirmation Sampling cy per sample [ replaced 20acre excavated] Each 82 37000$ 30340$ 30340$ Sampling Cost tabTransport soil and sediment to capping area Cubic Yard 6176 368$ 22727$ 22727$ 31 23 2318 0020 Means (2008)Verification Screening (all areas) based on grid network

Parcel 425 Each 81 37000$ 29970$ 29970$ Sampling Cost tabResidential Parcels 137 295464 503532 Each 143 37000$ 52910$ 52910$ Sampling Cost tab

Wetlands Each 42 37000$ 15540$ 15540$ Sampling Cost tabDust Suppression Square Foot 125816 001$ 1258$ 1708$ 33 08 0585 Means (2005) water by truckSoil Characterization (TCLP 1 per 200 CY) Each 41 13000$ 5330$ 5330$ HGL Langley R Bird Treatment of water from sediments - (Assume 50water content sediments) Gallons 781560 001$ 4924$ 7145$ EPA FRTR (2002)

OFF-Site DisposalHazardous Waste Landfill Disposal (PCB 50 -500 ppm) ton 2803 39400$ 1104227$ 1104227$ Vendor Quote

Incineration (PCB gt500 ppm) ton 475 78000$ 370396$ 370396$ Vendor QuoteNon-hazardous disposal (PCB lt 50 ppm) ton 10808 8784$ 949350$ 1289027$ 33 19 7269 Means (2005)

Alternative 3 Excavation Off-site Disposal and GW Treatment

Sauer Dump Site Sheet 1 of 4 HydroGeoLogic Inc February 2009

AR103857

Appendix B-2Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 3

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceCap PlacementCap Layers (material and placement no grading)

Top Cover Cubic Yard 2630 2237$ 58830$ 79879$ 18 05 0301 Means (2005)Burrow Barrier Cubic Yard 3481 2000$ 69614$ 69614$ Engineering JudgmentDrainage Layer Cubic Yard 1315 1055$ 13872$ 18835$ 17 03 0430 Means (2005)Low Permeability Barrier - Clay Cubic Yard 4542 2156$ 97934$ 132975$ 33 08 0507 Means (2005)

Cobble Perimeter Boundary Cubic Yard 1148 2000$ 22959$ 22959$ Engineering JudgmentGrading - TSCA Cap Square Yard 19938 1700$ 338946$ 338946$ 31 22 1610 3300 Means (2008)

Initial Grading after Clear and Grub Before Cap Placement Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)TopCover Square Yard 11834 322$ 38107$ 47253$ 023101000010 Means (2006)

Well Abandonment Each 1 7360$ 7360$ 7360$ Engineering Judgment Cost Bkp tabMonitoring Well Modifications Each 7 4000$ 28000$ 28000$ Engineering Judgment

Cap CompletionSeeding and mulching for Vegetation Cover Square Foot 106509 005$ 5219$ 7086$ 0293003080400 Means (2005)Access Controls - Fence Modification Linear Feet 1613 200$ 3226$ 3226$ Engineering JudgmentAccess Controls - Signs Linear Feet 1613 020$ 323$ 323$ 1 sign 500 ft of perimeter $100 installed = $020ftDemobilization Lump Sum 1 20000$ 20000$ 20000$ Engineering Judgment

Residential Area Site RestorationTop Cover Cubic Yard 1996 2237$ 44644$ 60618$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 5672 697$ 39537$ 53683$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 2145 322$ 6908$ 8566$ 023101000010 Means (2006)Seeding and mulching for Vegetation Cover Square Foot 19307 025$ 4730$ 6422$ 0293003080400 Means (2005) 5 (EJ) for residential area

Wetlands Restoration Acres 120 100000$ 119934$ 134465$ Engineering JudgmentSite Grading Square Yard 5805 322$ 18691$ 23177$ 023101000010 Means (2006)

Clean Fill Cubic Yard 7740 697$ 53946$ 73248$ 17 03 0422 Means (2005)Compaction Cubic Yard 7740 300$ 23219$ 31527$ Engineering Judgment

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater RedirectionEach 1 16988800$ 169888$ 169888$ See Groundwater Collection and Treatment Sheet

Subtotal 4619355$ 5251600$ Project SupportEngineering Design 12 of Subtotal 554323$ 621483$ Past Project ExperienceProject Management 10 of Subtotal 461936$ 517903$ Past Project ExperienceConstruction Management 8 of Subtotal 369548$ 414321$ Past Project ExperienceContingencies 15 of Subtotal 692903$ 776853$ EPA 540-R-98-045Back River Excavation Contingency 50 of est cost 250000$ 125000$ Engineering JudgmentCompletion Reports Lump Sum 1 6000000$ 60000$ 60000$ Past Project Experience

Subtotal 2388710$ 2515560$ TOTAL INSTALLED COST 7008065$ 7767160$

Sauer Dump Site Sheet 2 of 4 HydroGeoLogic Inc February 2009

AR103858

Appendix B-2Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 3

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Annual OampM Costs Operation and Maintenance Groundwater Collection and Treatment SystemPeriodic Inspection (2yr engr 8 hr ea) hrs 16 10000$ 1600$ 1600$ Engineering JudgmentSystem Operations Reporting (1yr) hrs 48 10000$ 4800$ 4800$ Engineering JudgmentSystem NPDES Monitoring 4yr 2 ppl 16 hr each hrs 128 10000$ 12800$ 12800$ Engineering JudgmentNPDES Monitoring Report 4yr 24 hrreport hrs 96 10000$ 9600$ 9600$ Engineering JudgmentAnnual Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentPart-time operator check system 1week $60hr 6 hrwk hrs 312 6000$ 18720$ 18720$ Engineering JudgmentFilter Bag Replacement 1xwk each 156 1000$ 1560$ 1560$ Engineering JudgmentFilter Bag Disposal drum 2 drumsyr TSCA incineration drum 2 100000$ 2000$ 2000$ Engineering JudgmentGAC annual profiling fees changeout 1 vesselyr each 1 25000$ 250$ 250$ vendor quoteGAC changeoutregeneration 1xyr each 2 143248$ 2865$ 2865$ 33 13 2005 13274 1215 Means (2004)Utilities - 2-14 hp pumps 2-12hp pumps add 40 for heat lighting controls kW hr 32751 008$ 2620$ 2620$ Engineering JudgementUtilities - phone mo 12 7500$ 900$ 900$ Engineering Judgment Operation and Maintenance Compacted Soil Cover and MonitoringPeriodic Inspection (4yr engr 20 hr ea) Hrs 80 10000$ 8000$ 8000$ Engineering JudgmentBurrowing Animal Control allowance Each 1 250000$ 2500$ 2500$ Engineering JudgmentHydroseeding repair veg cover (10yr) Acre 024 53762$ 131$ 188$ 180504028102002 Means (2004)Fence Repairs (10) Linear Feet 161 1500$ 2419$ 3466$ 17020701 Means + $4ft material allowanceCap RepairsFillRegradingCompaction (5 8 in fills) Cubic Yard 656 1116$ 7319$ 10484$ 17 03 0429 Means (2004)GroundwaterSurface Water Monitoring 1yr 2 ppl 24 hr each hrs 48 10000$ 4800$ 4800$ Engineering JudgmentGroundwaterSurface Water Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentReporting (1yr) Hrs 160 10000$ 16000$ 16000$ Engineering Judgment

Total Annual OampM Cost 118885$ 123153$

Present Value of Annual OampM (7 discount factor 30 yrs) 1475243$ 1528209$

Periodic OampM Costs Remove Interceptor Trench Gravel Replace 15 yrs into ProjectInterceptor Trench Excavation overburden and gravel bank cubic yd 1496 247$ 3696$ 3696$ 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 748 3286$ 24584$ 24584$ 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 748 103$ 771$ 771$ 02310 120 3000 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 748 336$ 2514$ 2514$ 02315 120 3320 Means (2006)Non-hazardous disposal of excavated soilgravel nonhazardous ton 748 8784$ 65717$ 65717$ 33 19 7269 Means (2005)

Present Value Periodic OampM Costs 97282$ 97282$

Total Present Value all OampM Costs 1572525$ 1625491$

TOTAL PROJECT COST 9392652$

Sauer Dump Site Sheet 3 of 4 HydroGeoLogic Inc February 2009

AR103859

Appendix B-2Excavation Offsite Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost 2009 Cost Reference

Interceptor Trench Sump Construction(2 trenches)Interceptor Trench Excavation bank cubic yd 3741 247$ $9231 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 1496 3286$ $49170 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 1496 103$ $1540 02310 120 3000 Means (2006)Purchase prep set groundwater extraction sumps Each 2 100000$ $2000 Engineering Judgment previous experiencePurchase install 4 PVC perforated drain pipe ft 1000 1057$ $10572 33 26 09 02709 2100 Means (2004)Haul dump place excess trench waste soil at cap area Cubic Yard 1496 224$ $3358 02315 110 1900 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 2244 336$ $7542 02315 120 3320 Means (2006)Extraction pumps - Each 2 30000$ $600 pump supplier web site incl freight 14 hp motorPump Controls panels connections Each 2 150000$ $3000 Engineering Judgment

Pump System Piping (treatment building located at south end of Parcel 425)Sumps to treatment building trench header lines 48 deep lineal ft 1200 110$ $1324 02315 620 2250 Means (2006) install 15 sch 80 PVC headers lineal ft 1200 420$ $5037 33 26 0427 Means (2004)

Treatment SystemTreatment Building 20 x 20 sq ft 400 7936$ $31744 median $sf factory Means (2006)Piping Allowance each 1 250000$ $2500 Engineering JudgementSurge Tank 2500 gal poly tank each 2 200000$ $4000 online pricing added freight estimateTransfer Pumps 30 gpm 12 hp centrifugal each 2 40000$ $800 pump web site pricing plus freight allowancePrefilter basket strainers each 2 120000$ $2400 Engineering JudgementGAC Adsorbers 2 in series 200 lb ea initial each 2 143248$ $2865 33 13 2005 13274 1215 Means (2004)Valving Flowmeters Controls Electrical each 1 1000000$ $10000 Engineering Judgement trench discharge line 48 deep lineal ft 200 110$ $221 02315 620 2250 Means (2006)Discharge Piping 4 sch 80 PVC lineal ft 200 992$ $1984 33 26 0427 Means (2004)Utilities - electrical phone service to site install poles li each 1 2000000$ $20000 allowance engineering estimate

TOTAL INSTALLED COST $169888

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater Redirection

Sauer Dump Site Sheet 4 of 4 HydroGeoLogic Inc February 2009

AR103860

APPENDIX B-3

REMOVAL TECHNOLOGY COST ESTIMATES ALTERNATIVE 4

Excavation Off-Site Disposal and Groundwater Collection and Treatment

AR103861

Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost Cost 2008 Cost ReferenceMobilizationWork Plans Lump Sum 1 100000$ 100000$ 100000$ Engineering JudgmentEquip Contractor Mobilization Lump Sum 1 75000$ 75000$ 75000$ Engineering JudgmentInstall Runoff Controls(silt fence and turbidity curtain) Linear Feet 1195 079$ 944$ 1282$ 0227007041000 Means (2005)Permitting (NPDES Permit etc) Lump Sum 1 50000$ 50000$ 50000$ Engineering JudgmentSite Survey Acre 409 350000$ 14307$ 14307$ 02 21 1309 0100 Means (2008)System Startup Shakedown Lump Sum 1 25000$ 25000$ 25000$ Engineering Judgment

Site Preparation and ExcavationRemove surface debris transport to disposal

Non-hazardous disposal ton 50 8784$ 4392$ 5963$ 33 19 7269 Means (2005)Hazardous disposal Cubic Yard 296 39400$ 116568$ 158276$ Vendor Quote

Clearing and Grubbing (non-river areas) Acre 467 476000$ 22218$ 22218$ Engineering JudgmentNon-hazardous disposal of cleared vegetation ton 598 5000$ 29899$ 29899$ Engineering Judgment

Off-site disposal of grubbed vegetation (assume PRG not met) ton 372 39400$ 146759$ 199269$ Vendor QuoteSoil (and Sediment Outside of Back River) Excavation

Parcel 425 Cubic Yard 12154 187$ 22783$ 30935$ 0222002380260 Means (2005)Cost Bkp tab for qtyResidential Parcels 137 295464 503532 Cubic Yard 4612 187$ 8645$ 11738$ 0222002380260 Means (2005)

Wetlands Cubic Yard 7740 1290$ 99843$ 123805$ 023154240950 Means (2006)Back River Sampling to assess need for excavation Each 1 $10563 10563$ 10563$ See Back R Sed Samplng tab

Excavation Screening (all areas)Screening samples at 2-foot excavation depth Each 44 37000$ 16280$ 16280$ Sampling Cost tabScreening samples at 4-foot excavation depth Each 18 37000$ 6660$ 6660$ Sampling Cost tab

Transport soil and sediment to staging areas Cubic Yard 24506 368$ 90181$ 90181$ 31 23 2318 0020 Means (2008)Confirmation Sampling cy per sample [ replaced 20acre excavated] Each 99 37000$ 36630$ 36630$ Sampling Cost tabVerification Screening (all areas) based on grid network

Parcel 425 Each 88 37000$ 32560$ 32560$ Sampling Cost tabResidential Parcels 137 295464 503532 Each 143 37000$ 52910$ 52910$ Sampling Cost tab

Wetlands Each 42 37000$ 15540$ 15540$ Sampling Cost tabDust Suppression Square Foot 125816 001$ 1258$ 1708$ 33 08 0585 Means (2005) water by truckSoil Characterization (TCLP 1 per 200 CY) Each 122 13000$ 15860$ 15860$ HGL Langley R Bird Treatment of water from sediments - (Assume 50water content sediments) Gallons 781560 001$ 4924$ 7145$ EPA FRTR (2002)

Alternative 4 Excavation Off-site Disposal and GW Treatment

Sauer Dump Site Sheet 1 of 4 HydroGeoLogic Inc February 2009

AR103862

Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

OFF-Site DisposalHazardous Waste Landfill Disposal (PCB 50 -500 ppm) ton 2781 39400$ 1095545$ 1095545$ Vendor Quote

Incineration (PCB gt500 ppm) ton 475 78000$ 370396$ 370396$ Vendor QuoteNon-hazardous disposal (PCB lt 50 ppm) ton 38404 8784$ 3373451$ 4580470$ 33 19 7269 Means (2005)

Well Abandonment Each 1 7360$ 7360$ 7360$ Engineering Judgment Cost Bkp tabMonitoring Well Modifications Each 7 4000$ 28000$ 28000$ Engineering Judgment

Residential Area Site RestorationTop Cover Cubic Yard 1996 2237$ 44644$ 60618$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 5672 697$ 39537$ 53683$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 2145 322$ 6908$ 8566$ 023101000010 Means (2006)

Parcel 425 RestorationTop Cover Cubic Yard 921 2237$ 20613$ 27988$ 18 05 0301 Means (2005)Clean Fill Cubic Yard 11233 697$ 78292$ 106305$ 17 03 0422 Means (2005)

Grading - One pass Square Yard 5529 322$ 17803$ 22076$ 023101000010 Means (2006)

Seeding and mulching for Vegetation Cover Square Foot 69066 025$ 16921$ 22975$ 0293003080400 Means (2005) 5 (EJ) for residential area

Wetlands Restoration Acres 120 100000$ 119934$ 134465$ Engineering JudgmentSite Grading Square Yard 5805 322$ 18691$ 23177$ 023101000010 Means (2006)

Clean Fill Cubic Yard 7740 697$ 53946$ 73248$ 17 03 0422 Means (2005)Compaction Cubic Yard 7740 300$ 23219$ 31527$ Engineering Judgment

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater RedirectionEach 1 16988800$ 169888$ 169888$ See Groundwater Collection and Treatment Sheet

Subtotal 6484872$ 7950017$ Project SupportEngineering Design 12 of Subtotal 778185$ 872468$ Past Project ExperienceProject Management 10 of Subtotal 648487$ 727056$ Past Project ExperienceConstruction Management 8 of Subtotal 518790$ 581645$ Past Project ExperienceContingencies 15 of Subtotal 972731$ 1090584$ EPA 540-R-98-045Back River Excavation Contingency 50 of est cost 250000$ 125000$ Engineering JudgmentCompletion Reports Lump Sum 1 6000000$ 60000$ 60000$ Past Project Experience

Subtotal 3228193$ 3456753$

TOTAL INSTALLED COST 9713065$ 11406769$

Sauer Dump Site Sheet 2 of 4 HydroGeoLogic Inc February 2009

AR103863

Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost Cost 2008 Cost Reference

Annual OampM Costs Operation and Maintenance Groundwater Collection and Treatment SystemPeriodic Inspection (2yr engr 8 hr ea) hrs 16 10000$ 1600$ 1600$ Engineering JudgmentSystem Operations Reporting (1yr) hrs 48 10000$ 4800$ 4800$ Engineering JudgmentSystem NPDES Monitoring 4yr 2 ppl 16 hr each hrs 128 10000$ 12800$ 12800$ Engineering JudgmentNPDES Monitoring Report 4yr 24 hrreport hrs 96 10000$ 9600$ 9600$ Engineering JudgmentAnnual Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentPart-time operator check system 1week $60hr 6 hrwk hrs 312 6000$ 18720$ 18720$ Engineering JudgmentFilter Bag Replacement 1xwk each 156 1000$ 1560$ 1560$ Engineering JudgmentFilter Bag Disposal drum 2 drumsyr TSCA incineration drum 2 100000$ 2000$ 2000$ Engineering JudgmentGAC annual profiling fees changeout 1 vesselyr each 1 25000$ 250$ 250$ vendor quoteGAC changeoutregeneration 1xyr each 2 143248$ 2865$ 2865$ 33 13 2005 13274 1215 Means (2004)Utilities - 2-14 hp pumps 2-12hp pumps add 40 for heat lighting controls kW hr 32751 008$ 2620$ 2620$ Engineering JudgementUtilities - phone mo 12 7500$ 900$ 900$ Engineering Judgment Operation and Maintenance Groundwater and Surface Water MonitoringFence Repairs (10) Linear Feet 10 1500$ 150$ 215$ 17020701 Means + $4ft material allowanceGroundwaterSurface Water Monitoring 1yr 2 ppl 24 hr each hrs 48 10000$ 4800$ 4800$ Engineering JudgmentGroundwaterSurface Water Monitoring Lab Supplies Equip Unit Cost 1 1000000$ 10000$ 10000$ Engineering JudgmentReporting (1yr) Hrs 160 10000$ 16000$ 16000$ Engineering Judgment

Total Annual OampM Cost 98665$ 98730$

Present Value of Annual OampM (7 discount factor 30 yrs) 1224339$ 1225144$

Periodic OampM Costs Remove Interceptor Trench Gravel Replace 15 yrs into ProjectInterceptor Trench Excavation overburden and gravel bank cubic yd 1496 247$ 3696$ 3696$ 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 748 3286$ 24584$ 24584$ 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 748 103$ 771$ 771$ 02310 120 3000 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 748 336$ 2514$ 2514$ 02315 120 3320 Means (2006)Non-hazardous disposal of excavated soilgravel nonhazardous ton 748 8784$ 65717$ 65717$ 33 19 7269 Means (2005)

Present Value Periodic OampM Costs 97282$ 97282$

Total Present Value all OampM Costs 1321621$ 1322426$

TOTAL PROJECT COST 12729195$

Sauer Dump Site Sheet 3 of 4 HydroGeoLogic Inc February 2009

AR103864

Appendix B-3Excavation Off-Site Disposal and Groundwater Collection and Treatment Cost Estimate

Alternative 4

Line Item Unit Quantity Unit Cost 2009 Cost ReferenceInterceptor Trench Sump Construction(2 trenches)Interceptor Trench Excavation bank cubic yd 3741 247$ $9231 02315 424 0250 Means (2006)Purchase deliver clean gravel backfill Cubic Yard 1496 3286$ $49170 17 03 0419 02704 0300 Means (2004)Backfill Trench w Gravel Cubic Yard 1496 103$ $1540 02310 120 3000 Means (2006)Purchase prep set groundwater extraction sumps Each 2 100000$ $2000 Engineering Judgment previous experiencePurchase install 4 PVC perforated drain pipe ft 1000 1057$ $10572 33 26 09 02709 2100 Means (2004)Haul dump place excess trench waste soil at cap area Cubic Yard 1496 224$ $3358 02315 110 1900 Means (2006)Backfill grade above pea gravel w filter fabric Cubic Yard 2244 336$ $7542 02315 120 3320 Means (2006)Extraction pumps - Each 2 30000$ $600 pump supplier web site incl freight 14 hp motorPump Controls panels connections Each 2 150000$ $3000 Engineering Judgment

Pump System Piping (treatment building located at south end of Parcel 425)Sumps to treatment building trench header lines 48 deep lineal ft 1200 110$ $1324 02315 620 2250 Means (2006) install 15 sch 80 PVC headers lineal ft 1200 420$ $5037 33 26 0427 Means (2004)

Treatment SystemTreatment Building 20 x 20 sq ft 400 7936$ $31744 median $sf factory Means (2006)Piping Allowance each 1 250000$ $2500 Engineering JudgementSurge Tank 2500 gal poly tank each 2 200000$ $4000 online pricing added freight estimateTransfer Pumps 30 gpm 12 hp centrifugal each 2 40000$ $800 pump web site pricing plus freight allowancePrefilter basket strainers each 2 120000$ $2400 Engineering JudgementGAC Adsorbers 2 in series 200 lb ea initial each 2 143248$ $2865 33 13 2005 13274 1215 Means (2004)Valving Flowmeters Controls Electrical each 1 1000000$ $10000 Engineering Judgement trench discharge line 48 deep lineal ft 200 110$ $221 02315 620 2250 Means (2006)Discharge Piping 4 sch 80 PVC lineal ft 200 992$ $1984 33 26 0427 Means (2004)Utilities - electrical phone service to site install poles li each 1 2000000$ $20000 allowance engineering estimate

TOTAL INSTALLED COST $169888

Groundwater Interceptor Trench Extraction and Treatment Discharge Upgradient Groundwater Redirection

Sauer Dump Site Sheet 4 of 4 HydroGeoLogic Inc February 2009AR103865

  • 10 INTRODUCTION
    • 11 PURPOSE AND ORGANIZATION OF THE REPORT
    • 12 SITE BACKGROUND
      • 121 Site Location and Description
      • 122 Site Operational History
        • 13 PREVIOUS SITE INVESTIGATIONS
          • 131 MDE and EPA Initial Site Investigations
          • 132 MDE Site Investigation (1990)
          • 133 EPA Expanded Site Inspection
          • 134 MDE Investigations (1996-2005)
          • 135 Extent of Contamination Study
            • 1351 Site Reconnaissance
            • 1352 Soil and Sediment Sampling
            • 1353 Surface Water Sampling
            • 1354 Groundwater Monitoring Well Installation and Sampling
                • 14 NATURE AND EXTENT OF CONTAMINATION
                  • 141 Surface and Subsurface Soil Contamination
                  • 142 Sediment Contamination
                    • 15 CONTAMINANT FATE AND TRANSPORT
                    • 16 SUMMARY OF BASELINE RISK ASSESSMENT
                      • 20 REMOVAL OBJECTIVES
                        • 21 REMOVAL OBJECTIVES
                        • 22 IDENTIFICATION OF POTENTIAL APPLICABLE OR RELEVANT AND APPROPRIATE REQUIREMENTS
                          • 221 Chemical-Specific ARARs
                          • 222 Location-Specific ARARs
                          • 223 Action-Specific ARARs
                          • 224 To Be Considered Materials
                            • 23 DETERMINATION OF PRELIMINARY REMEDIAL GOALS AND DESCRIPTION OF CONTAMINATED MEDIA
                              • 231 Development of Preliminary Remedial Goals (PRGs)
                              • 232 Volume Estimates ndash Soils and Sediments
                              • 233 Groundwater Management
                                  • 30 IDENTIFICATION AND SCREENING OF TECHNOLOGY TYPES AND PROCESS OPTIONS
                                    • 31 GENERAL RESPONSE ACTIONS (GRAS)
                                    • 32 IDENTIFICATION AND SCREENING OF POTENTIALLY APPLICABLE TECHNOLOGIES
                                    • 33 EVALUATION OF POTENTIAL REMEDIAL TECHNOLOGIES
                                      • 331 No Action
                                      • 332 Institutional Controls
                                        • 3321 Deed NoticesRestrictions
                                        • 3322 Access Agreements
                                        • 3323 Monitoring of Site Conditions
                                        • 3324 Security Fencing
                                        • 3325 Public Awareness and Information Programs
                                          • 333 Containment
                                            • 3331 Multi-Layer Cover
                                            • 3332 TSCA Compacted Soil Cover
                                            • 3333 Asphalt or Concrete Cover
                                              • 334 Soils and Sediments Treatment
                                                • 3341 In Situ Soil Flushing
                                                • 3342 Ex Situ Soil Washing
                                                • 3343 Ex Situ Thermal Desorption
                                                • 3344 Ex Situ Thermal Destruction (Incineration)
                                                  • 335 Groundwater CollectionTreatment
                                                    • 3351 Interceptor Trench
                                                    • 3352 Extraction Wells
                                                    • 3353 Granular Activated Carbon Adsorption
                                                    • 3354 Monitored Natural Attenuation
                                                      • 336 Removal and Disposal TPOs
                                                        • 3361 Excavation
                                                        • 3362 Off-Site Landfill
                                                            • 34 SUMMARY OF TREATMENT TECHNOLOGIES AND SELECTION OF REPRESENTATIVE PROCESS OPTIONS
                                                              • 40 DEVELOPMENT AND DETAILED ANALYSIS OF REMOVAL ALTERNATIVES
                                                                • 41 DEVELOPMENT OF ALTERNATIVES
                                                                  • 411 Alternative 1 No Action
                                                                  • 412 Alternative 2 Surface Cap Excavation and Off-Site Disposal
                                                                  • 413 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                  • 414 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                    • 42 EVALUATION CRITERIA
                                                                    • 43 DETAILED ANALYSIS OF ALTERNATIVES
                                                                      • 431 Alternative 1 No Action
                                                                        • 4311 Effectiveness
                                                                        • 4312 Implementability
                                                                        • 4313 Cost
                                                                          • 432 Alternative 2 Surface Cap Excavation and Off-Site Disposal
                                                                            • 4321 Effectiveness
                                                                            • 4322 Implementability
                                                                            • 4323 Cost
                                                                              • 433 Alternative 3 Surface Cap Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                                • 4331 Effectiveness
                                                                                • 4332 Implementability
                                                                                • 4333 Cost
                                                                                  • 434 Alternative 4 Excavation Off-Site Disposal and Groundwater Collection and Treatment
                                                                                    • 4341 Effectiveness
                                                                                    • 4342 Implementability
                                                                                    • 4343 Cost
                                                                                        • 44 COMPARATIVE ANALYSIS OF ALTERNATIVES
                                                                                          • 441 Effectiveness
                                                                                          • 442 Implementability
                                                                                          • 443 Cost
                                                                                              • 50 SUMMARY
                                                                                              • 60 REFERENCES
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