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GEI Consultants, Inc. ATLANTIC ENVIRONMENTAL DIVISION

TASK 220: EXPLORATORY SITE INVESTIGATION

Replacement of the Stevenson Dam Bridge (CT RT34) Monroe/Oxford, Connecticut

ConnDOT Assignment No. 400-3744 ConnDOT Project No. 0084-0093

Submitted to:

State of Connecticut Department of Transportation Division of Environmental Compliance 2800 Berlin Turnpike P.O. Box 317546 Newington, CT 06131-7546

P.O. Box 297 Tel: (860) 537-0751 September 3, 1999 188 Norwich Avenue Fax: (860) 537-6347 Project 99253 Colchester, CT 06415

INTERDEPARTMENTAL STATE OF CONNECTICUT MESSAGE

TO Mr. Charles Fredette, Supervising Sanitary Engineer Oct. 19, 1999

Dept. of Environmental Protection, 79 Elm Street, Hartford, CT

T.

FROM T. CuhninghfbnT^ Trans. Supervising Engineer (860)594-3198

Bureau of Engineering & Highway Oper., 2800 Berlin Tpke., Newington, CT

PROJECT NO. 84-93 ROUTE 34, REPLACEMENT OF THE STEVENSON DAM BRIDGE MONROE/OXFORD

Attached for your information is a copy of the Exploratory Site Investigation Report (Task 220) for this project. This report was prepared to provide additional subaqueous soil investigation at the proposed pier locations in Lake Zoar. The public has voiced concerns to the Department about PCB's in the lake sediment. The analysis for PCB's was prepared in accordance with EPA Method 8082. Testing for seven different analytes was completed as noted in Appendix C.

If you have any questions, please contact the Project Engineer, Mr. Gregory Soja, Project Engineer, at (860) 594-3200.

Attachment

Gregory Soja:pa cc: Thomas A. Harley-Brian T. Cunningham

William R. Stark-Robert P. Zaffetti

F:\SR\SOJA\084-093\FREDETTE.DOC

RECEIVED OCT 21

WATER PLANNING &

CONTENTS

SECTION PAGE

1.0 INTRODUCTION 1

2.0 SITE DESCRIPTION AND HISTORY 3

3.0 LOCAL ENVIRONMENT 4

3.1 Ground water 4 3.2 Surface Water 4 3.3 Water Supply 4 3.4 Bedrock Geology . . . 4 3.5 Surficial Geology 4

4.0 FIELD INVESTIGATION 5

4.1 Objective 5 4.2 Sampling Plan and Rationale 5 4.3 Field Investigation and Sampling Methods 5

4.3.1 Sediment Sampling 5

4.4 Laboratory Analysis 7

5.0 LABORATORY ANALYTICAL RESULTS 8

5.1 CTDEP Cleanup Criteria 8

5.1.1 Overview and Applicability 8 5.1.2 Soil Cleanup Criteria 8 5.1.3 Groundwater Remediation Standards 9

5.2 Evaluation of Data 11

5.2.1 Sediment Sample Analytical Results 11 5.2.2 Quality Assurance/Quality Control (QA/QC) 14

6.0 RECEPTORS 15

6.1 Sediments and Soils 15

7.0 SUMMARY AND CONCLUSIONS 16

-i

CONTENTS (continued)

SECTION PAGE

8.0 LIMITATIONS 17

REFERENCES 18

a

*

CONTENTS (continued)

SECTION PAGE

Figure 1: Figure 2:

LIST OF FIGURES

Site Location MapSample Locations

2 6

Table 1: Table 2:

LIST OF TABLES

Sampling RationaleSubsurface Investigation Analytical Results

7 12

Appendix A: Appendix B: Appendix C:

LIST OF APPENDICES

Metric Equivalent Units Boring Logs Laboratory Analytical Results and Chain-of-Custody Forms

*

*

-ui

1.0 INTRODUCTION

The Connecticut Department of Transportation (ConnDOT) retained GEI Consultants, Inc., Atlantic Environmental Division (GEI/Atlantic), to perform a Task 220, Exploratory Site Investigation (ESI), at the proposed location of the new Stevenson Dam bridge in Monroe/Oxford, Connecticut. The subject property location is depicted in Figure 1. ConnDOT has proposed to replace the Stevenson Dam Bridge on Connecticut Route 34 in Monroe/Oxford, Connecticut (ConnDOT Project No. 0084-0093).

The purpose of the Task 220 was to collect and analyze samples of Lake Zoar bottom sediments and soils, to assess the presence of contamination, and to evaluate whether proposed construction activities may include management or disturbance of contaminated sediments or soils. This investigation consisted of sediment and soil sampling and analysis. The investigation program is described in Section 4.0.

This document provides a brief description and history of the subject site (Section 2.0); a discussion of the local environment (Section 3.0); the field investigation methods and rationale (Section 4.0); laboratory analytical results and evaluation of data (Section 5.0); a discussion of potential receptors (Section 6.0); and the summary and conclusions (Section 7.0).

Dimensions are given in metric units, with the standard equivalents in parentheses. Exceptions are made where specific standard units are part of the historical or regulatory record (for instance, underground storage tank [UST] volumes, building dimensions), or are industry-standard specifications (e.g., well-screen length). A chart of equivalent units is provided as Appendix A

A

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Exploratory Site Investigation -1- Project No. 99253

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4 1200 GEI Consultants, Inc.

ATLANTIC BMtOMenMLDMSKM

GRAPHIC SCALE IN METERS FIGURE 1 2000 1000 0 2000 4000 SITE LOCATION MAP *

CONNDOT PROJECT NO. 00844093 • REPLACEMENT OF THE STEVENSON DAM ~~ GRAPHIC SCALE IN FEET BRIDGE (CTRT 34)

MONROE (OXFORD). CONNECTICUT *

-2- Project No. 99253 Exploratory Site Investigation

2.0 SITE DESCRIPTION AND HISTORY

The Stevenson Dam was built in approximately 1923. Lake Zoar was formed by construction of the Stevenson Dam. Sometime after that, probably starting in the late 1 93 Os, polychlorinated biphenyls (PCBs) were released to the Housatonic River in Massachusetts. Previous testing at a dam upstream of Lake Zoar indicated PCBs at levels of less than 5 parts per million (ppm). Sediments sampled for a previous investigation in the subject site area indicated that the sediments were not contaminated with PCBs, metals, volatile organic compounds (VOCs), hydrocarbons, or pesticides. These results conflict with testing performed by the Connecticut Department of Environmental Protection (CTDEP), which indicated PCBs in sediments at the subject site in concentrations generally around 1 ppm or less.


3.0 LOCAL ENVIRONMENT

3.1 Groundwater m

Groundwater below and near the site is classified by the CTDEP as a GA groundwater area (Reference 1). The GA classification indicates groundwater within the area of influence of private

* and potential public water supply wells that is presumed suitable for direct human consumption without need for treatment. The state's goal is to maintain the quality of the drinking water.

«B 3.2 Surface Water

* This surface water is classified by the CTDEP as D/B upstream of the Stevenson Dam and C/B downstream of the dam, designating the water for recreational use, fish and wildlife habitat, agricultural supply, industrial supply, and other legitimate uses, including navigation (Reference 1). The D/B and C/B classifications indicate that the waters do not meet the water quality criteria for one or more of the designated uses. The state's goal is Class B.

m 3.3 Water Supply

* Public water supply is not available to the site (Reference 2). There may be private water supply wells within the general she area.

i No public water supply wells or surface water sources are located within 1.6 kilometers (1.0 mile) of the site (Reference 3).

i 3.4 Bedrock Geology

According to the 1995 United States Geological Survey (USGS) Bedrock Geology Map of Connecticut, bedrock geology underlying the subject property is the Collinsville formation. This

£ formation/bedrock consists ofa gray and silvery, medium-to-coarse grained schist, and dark, fine-tomedium grained amphibolite and hornblende gneiss.

* 3.5 Surficial Geology

£ According to the 1992 USGS Surficial Materials Map of Connecticut, the subject property is underlain by glacial meltwater deposits. These deposits consist of sand and gravel deposited by glacial meltwaters.


4.0 FIELD INVESTIGATION

4.1 Objective

m The objective of this investigation was to obtain and analyze sediment and soil samples from Lake Zoar within the proposed bridge alignment. This investigation did not assess the potential for

9 contaminant sources outside this area. To investigate these sources, sediment and soil sampling and analysis was conducted. The field aspects of this investigation were conducted during June and July of 1999 by Steven Hawkins of GEI/Atlantic.

« '

The environmental concerns addressed by this investigation include:

41 • quantification of PCB levels in sediment; and

** • quantification of other hazardous substances in sediment and underlying soils.

A 4.2 Sampling Plan and Rationale

This subsection provides an overview of the site sampling plan, including the rationale for sampling 4 locations and individual sample selection for laboratory analysis. Sample locations are shown in

Figure 2. The drilling subcontractor, Guild Drilling Company, set up at predetermined locations along the proposed alignment for the new bridge. The rationale for the placement of sample locations is summarized in Table 1. In general, the rationale was to collect sediment samples at 6-inch intervals from the top of the sediment surface to a depth at which PCBs were not detected. Due to lack of

£ sample recovery it was not possible to get samples at 6-inch intervals at all sampling locations. In addition, the rationale included the collection of larger intervals representative of either sediments or the underlying sand and gravel to fully characterize these samples. These samples were analyzed for

* total and synthetic precipitation leaching procedure (SPLP) metals (8 Resource Conservation and Recovery Act [RCRA]), VOCs, semivolatile organic compounds (SVOCs), total petroleum

^ hydrocarbons (TPH), and total organic carbon (TOC).

£ 4.3 Field Investigation and Sampling Methods

4.3.1 Sediment Sampling 4

The drilling subcontractor, Guild Drilling Company, completed the work on June 15 and 16 and July 6 and 7,1999. Samples were collected from a barge-mounted drill rig. GEI/Atlantic personnel were on site to monitor the test boring.

i

* - Exploratory Site Investigation -5- Project No. 99253

LEGEND

OP-1E TEST BORING SAMPLE LOCATION

PROPOSED STATE HK5HWAY

OBI Conmhant*, Inc. ATLANTIC9NKMCNTM. OMSKM

FIGURE 2 SAMPLE LOCATION

CONNDOT PROJECT NO. 0084-0093 BERACEMEHT OF THE STEVENSON MM HODGE (CT RT

MONROE (OXFORD). CONNECTICUT

i

Table 1 Sampling Rationale

S^fkTjft Anafeiis1

Sample Selected Sett Sasopk ID Rtfensfc (Sample Depth) Intern! Ratiwolc •Mart Set voct svoct irar IOC« PCS' €,?

TmtBtriat »

PlEtoP4E Within proposed Bonng ID (depth) • • e.g.,PlE(

4

5.0 LABORATORY ANALYTICAL RESULTS

5.1 CTDEP Cleanup Criteria

5.1.1 Overview and Applicability

m Analytical results for soils and sediments obtained during this investigation were compared to the Connecticut Remediation Standard Regulations (RSRs) (January 1996) developed by the CTDEP. It should be noted that the RSRs do not apply to sediments and comparison to

*, these standards was done for screening purposes only. The cleanup standards are summarized herein, but the actual referenced document should be consulted for complete details.

The CTDEP's intent in developing these regulations is to define: minimum remediation performance standards, specific numeric cleanup criteria, and a process for establishing an alternative site-specific standard.

« The regulations apply at any action taken to remediate polluted soil, surface water, or a groundwater plume at or emanating from a release area, provided that the remedial action is:

& (1) required pursuant to Chapter 445 (Hazardous Waste) or 446K (Water Pollution Control) of the Connecticut General Statutes; or (2) undertaken pursuant to the voluntary cleanup provisions of Public Act 95-183 or 95-190; including, but not limited to, any such action

™ required to be taken or verified by a licensed environmental professional, except as otherwise provided in the regulations. Specifically, the regulations provide that the standards do not

j apply to: (1) the soil and water within the zone of influence of a groundwater discharge permitted under Section 22a-430 CGS; or (2) a release which has been remediated and which remediation has been approved in writing by the CTDEP.

« 5.1.2 Soil Cleanup Criteria

1̂ The CTDEP soil remediation goals integrate two soil cleanup criteria: (1) Direct Exposure Criteria (DEC) to protect human health and the environment from risks associated with direct exposure to pollutants in contaminated soil; and (2) Pollutant Mobility Criteria (PMC) to

•t protect groundwater quality from pollutants that migrate from the soil to groundwater. Soils to which both criteria apply must be remediated to a level which is equal to the more stringent criteria. The CTDEP cleanup criteria also include a requirement that contaminated soils

*l which pose an ecological risk be remediated on a case-by-case basis.

Direct Exposure Criteria (DEC). Specific numeric exposure criteria for a broad range of * pollutants in soil have been established by CTDEP, based on exposure assumptions relative

to incidental ingestion of pollutants in soils and dermal contact with soils. The DEC apply to accessible soil to a depth of 15 feet. The DEC for substances other than PCBs do not apply to inaccessible soil at a release area provided that an environmental land-use restriction (ELUR) is in effect with respect to the subject parcel. Refer to the cleanup regulations for

— specific requirements regarding PCB-contaminated soil. Inaccessible soil generally means polluted soil which is: (1) more than 4 feet below the ground surface; (2) more than 2 feet


below a paved surface comprised of a minimum of 3 inches of bituminous concrete or concrete; (3) beneath an existing building; or (4) beneath another permanent structures) approved by the Commissioner. Inaccessible soil cannot be exposed by excavation, demolition, or construction activities without written approval from the Commissioner.

CTDEP has established two sets of DEC using exposure assumptions appropriate for residential land use or for industrial and certain commercial land use. In general, all sites are required to be cleaned up to the residential criteria. An industrial/commercial site (in lieu of meeting the residential standards) may meet the industrial land-use criteria, if an ELUR is in effect with respect to such parcel.

Pollutant Mobility Criteria (PMC). The PMC that will apply to remediation of a site depend on the groundwater classification of the site. The purpose of these criteria is to prevent any contamination to groundwater in GA-classified areas, and to prevent unacceptable further degradation to groundwater in GB-classified areas. The PMC generally apply to all soil in the unsaturated zone, from the ground surface to the seasonal low water table in GA-classified areas. For sites within GB-classified areas, the PMC are applicable to all soils from the ground surface to the seasonal high water table. The PMC or an appropriate alternative criteria may also be applied to soils below the water table if such soils constitute an ongoing source of groundwater pollution and if remediation of such soils is technically practicable. The criteria do not apply to environmentally isolated soils that are polluted with substances other than VOCs provided that an ELUR is recorded for the site which ensures that such soils will not be exposed as a result of demolition of the building or other activities. Environmentally isolated soils are defined as contaminated soils beneath an existing building (or other permanent structure, as approved by the Commissioner) which are not a source of ongoing pollution. "Urban fill" material (coal or wood ash, or asphalt fragments) may also be exempt from the PMC in certain cases.

A substance, other than an inorganic substance or PCB, in soil shall be remediated to at least that concentration at which the results of a mass analysis of soil for such substance does not exceed the PMC applicable to the groundwater classification (e.g., GA/GAA or GB) of the area in which the soil is located. An inorganic substance or PCB in soil shall be remediated to at least that concentration in which the results of a toxicity characteristic leaching procedure (TCLP) or SPLP analysis of such soil for such substance does not exceed the PMC applicable to the groundwater classification of the area in which the soil is located. If certain conditions are met, a site in a GA area need only be remediated to GB standards.

5.1.3 Groundwater Remediation Standards

Similar to remediation standards for soil, groundwater remediation requirements are dependent upon the groundwater classification. The objectives of these standards are to: (1) protect and preserve groundwater in GA areas as a natural resource; (2) protect existing use of groundwater regardless of the area's groundwater classification; (3) prevent further degradation of groundwater quality; (4) prevent degradation of surface water from discharges of contaminated groundwater; and (5) protect human health.


The Groundwater Remediation Standards regulate remediation of groundwater based on each substance present in a plume and by each distinct plume of contamination. Several factors influence the remediation goal at a site, including: background groundwater quality; the groundwater classification; the proximity of nearby surface water; existing groundwater uses; and existing buildings and their use. When assessing general groundwater remediation requirements, all of these factors must be considered in conjunction with the major numeric components of the RSRs.

The three major numeric components which are described herein include the following.

• Groundwater Protection Criteria (GWPC) • Surface Water Protection Criteria (SWPC) • Volatilization Criteria (VC)

Groundwater Protection Criteria. The GWPC apply to all groundwater in a GA-classified area. The GWPC ensure that groundwater contamination resulting from on-site sources which exceeds background is remediated to levels that adequately protect its designated use as an existing or potential supply of water suitable for drinking without treatment. In general, compliance with GWPC is achieved when the concentration of all substances in a plume is less than the GWPC.

Surface Water Protection Criteria. The SWPC apply to all groundwater which discharges to surface water. The SWPC ensure that groundwater contamination resulting from on-site sources which exceeds background is remediated to levels that adequately protect the surface water quality. SWPC are based on Connecticut's water quality standards which are protective of both human health and the environment. In general, compliance with the SWPC is achieved when the average concentration of a compound in groundwater emanating from a site is less than the SWPC established by the CTDEP

Volatilization Criteria. The VC apply to all groundwater polluted with a volatile organic substance within 15 feet of the ground surface or a building. According to the regulations, the volatile organic substance of concern will be remediated to a concentration which is equal to or less than the applicable residential VC for groundwater. If groundwater polluted with a volatile organic substance is below a building used solely for industrial or commercial activity, groundwater may be remediated to the applicable industrial/commercial VC in lieu of the residential VC for groundwater, provided that an ELUR is in effect with respect to the parcel (or portion of the parcel covered by the building). The ELUR also must ensure that the parcel (or portion thereof beneath the building) will not be used for any residential purpose in the future and that any future use is limited to industrial or commercial activity. There are a number of exceptions to the VC under the RSRs.

In GA-classified areas, the remediation goal is generally the background concentration and compliance with the SWPC and VC. Background concentration for a compound in groundwater at a site is defined as the concentration of that compound in groundwater (immediately upgradient of the contamination plume) that is not affected by any release of pollutants on or related to the site.


Groundwater in a GA area can be remediated to the numerical GWPC, rather than background, under one of two scenarios, as follow.

• When the following conditions are met.

*• Groundwater background concentration is less than or equal to the GWPC. * A public water supply system is available within 200 feet of the site. »• The site is not located within an aquifer protection area. » The site is not located within an area of influence associated with a public

water supply well. Or:

• If prior to remediation, the maximum concentration in the plume is less than or equal to the GWPC.

The objective of groundwater remediation in a GB-classified area is compliance with the SWPC and VC background levels. In addition, concentrations must be such that the groundwater plume does not interfere with any existing uses of the groundwater.

5.2 Evaluation of Data

5.2.1 Sediment Sample Analytical Results

Sediment sample locations are indicated in Figure 2. A summary of analytical results is provided in Table 2 and laboratory analytical results are included in Appendix C.

PCB were detected in sediments but not in underlying soils. PCBs were detected in the sediments at all four sample locations in concentrations ranging from not detected to 630 Mg/kg. Both PCB arochlors 1254 and 1260 were detected. Although the RSR criteria are not applicable to sediments, none of the PCB results exceeded such criteria.

Total metals analysis detected seven metals (arsenic, barium, cadmium, chromium, lead, mercury, and silver). Levels detected were all below RSR criteria except for arsenic levels in two shallow sediment samples, P2E (0-4) and P3E (0-4). Some metals (arsenic, cadmium, lead, mercury, and selenium) were detected above published background levels for soils. Of these metals (other than arsenic), only lead and mercury levels were within an order of magnitude of their respective RDEC.

SPLP metals analysis detected only barium and lead. Only SPLP lead was detected above RSR criteria in one sample PIE (0-2). Other levels of lead and barium detected are present at what appears to be natural background levels.

The only VOCs detected were low levels of acetone, methyl ethyl ketone and methylene chloride. None of the levels detected exceeded RSR criteria. The detection of these compounds is believed to be due to laboratory contamination as explained in more detail in subsection 5.2.2, Quality Assurance/Quality Control.


m x•o. Table 2 o Stevenson Dam - Subsurface Investigation

o Analytical Results

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m Table 2 (continued)

5" Stevenson Dam - Subsurface Investigation *Analytical Results I

San CO CTDEP Criteria P3E P3E P3E P3E P3E P3E P3E P3E P3E P3E P4E P4E P4E P4E P4E RDEC OAPMC jir-24"| 124" -SO") (4T44-) (54--60-| (•Mr)

*fl*9l .„.!»,„ aaiflaa*

i >CB Arodor-1254 NO NO NO NO NO NO NO NO " NO NO NO _ >CBAroclor-12eO — ,_ 84 92 110 140 95 300 NO NO 150 NO NO * Total PCBe 1,000 84 92 110 140 95 300 ND NO 150 NO NO

JO % % Hs(2-Ethylnexyl)pnthaMe 44.000 1,000 160J 61 J NO NO Bnenanthrane 1,000,000 4,000 390 J NO NO 41 J l̂uoranthene 1.000,000 5.600 750 J NO 64J 120 J

9yrene 1,000,000 4,000 980J NO 67 J 150J 3enz(a)antnracene 1,000 1,000 350 J NO 45 J 84J Chrysene 64,000 1,000 480 J NO NO 90 J 9enzo(b)fluorenthene 1,000 1,000 670 J NO 55J 120 J Benzo{k)fluoranthene 8,400 1,000 300 J NO NO 53 J 3enzo(a)pyrerw 1,000 1,000 440 J NO NO 80 J lnderK>(1(2|3Hxl)pvrene 1,000 1,000 260 J NO NO NO

IK ĥRsdm p̂t&i JNUUWKHJ•%$$$H8M$^ a^KfRWim IMHMM SW^^^^^^ -̂̂ ^^^^S ĵ? ;̂??^^?^ !̂ ". .'ŝ .iS^SsTT. ~. .

SVOCs detected included bis(2-ethylhexyl)phthalate and nine polycyclic aromatic hydrocarbons (PAHs). Levels detected were all below RSR criteria. Bis(2-ethylhexyl)phthalate was detected in all samples and may be associated with sample or laboratory contamination. PAHs were detected in four of eight samples: P2E (0-4), P3E (0-4), P4E (4-8) and P4E (8-12). The PAHs detected, with the exception of sample P4E (8-12), are associated with shallower sediment/soils.

TPH was detected at low levels in four of eight samples. Levels detected were well below RSR criteria and ranged from not detected to 170 ppm. The TPH detected is generally associated with shallower materials.

TOC was detected in seven of eight samples. Levels detected ranged from not detected to 1.38%. There is no RSR criterion for TOC as there is no toxicity associated with TOC.

5.2.2 Quality Assurance/Quality Control (QA/QC)

There were no field QA/QC samples collected during this investigation. The common laboratory contaminants acetone, methylene chloride, and methyl ethyl ketone were detected in several samples. Only methyl ethyl ketone was detected in a method blank. The presence of methyl ethyl ketone is due to laboratory contamination and the presence of methylene chloride and acetone are potentially due to laboratory contamination. The concentrations of these analytes appear significantly higher in sample P3E (0-4) than in other samples due to the relatively low percentage of solids in this sample.


6.0 RECEPTORS

The following is a summary of affected environmental media and associated potential receptors.

6.1 Sediments and Soils

Sediments or soils could be suspended into the water column during construction activities and thereby impact aquatic life. In addition, receptors of contaminated soils and sediments could include construction workers via direct exposure and, if removed materials are allowed to dry, area residents via exposure to windblown particles from the construction activities.


7.0 SUMMARY AND CONCLUSIONS

The purpose of the Task 220 was to collect and analyze samples of Lake Zoar bottom sediments and soils, to assess the presence of contamination, and to evaluate whether proposed construction activities may include management or disturbance of contaminated sediments or soils. This investigation consisted of sediment and soil sampling and analysis.

PCBs were detected in sediments but not in underlying soils. PCBs were detected in the sediments at all four boring locations in concentrations ranging from not detected to 630 /zg/kg. Both PCB arochlors 1254 and 1260 were detected. Although the RSR criteria are not applicable to sediments, none of the PCB results exceeded such criteria.

Total arsenic levels in two sediment sample locations exceeded DEC criteria. Total metals levels in all other samples were below RSR criteria. Some metals were present at levels above published background levels but below RSR criteria. Of these metals (other than arsenic), only lead and mercury were within an order of magnitude of the RSR criteria. SPLP lead exceeded GA PMC in one shallow sediment sample.

VOCs were not detected (other than laboratory contaminants). SVOCs and TPH were only detected at low levels, well below RSR criteria, primarily in shallower materials. No additional investigations are recommended.

CTDEP should be consulted regarding the substances (primarily PCBs) detected in sediments and soils in relation to the terms and conditions or requirements of environmental permits associated with construction of the new bridge.

Sediments are not suitable for reuse within the project limits due to arsenic and SPLP lead levels. These materials should be properly disposed of at an off-site location. All soils are suitable for reuse within the project limits from an environmental perspective; however, some of the soils are not clean fill and, as such, cannot be used off site in an unrestricted manner.

The project plans and specifications should address the management of sediments and any soils that are sent off site which are not clean fill. A Task 310, Remedial Management Plan, is recommended to address the management and disposal of soils which are not clean fill, but are sent off site, and sediments.


8.0 LIMITATIONS

The investigation described in this report and this report were conducted and prepared on behalf of and for the exclusive use of ConnDOT and its counsel. No other entity may rely upon the results of the investigation or contents of this report for any reasons or purpose whatsoever.

The conclusions summarized herein were based on the limited observations and investigations described within this submittal at the time the investigation was conducted. Future events at the site or the surrounding properties may alter these findings.

In preparing this report, GEI/Atlantic relied on direction and certain information provided by state and local officials, and information and representations made available to GEI/Atlantic at the time of the assessment. To the extent that such information is incomplete or inaccurate, GEI/Atlantic is not responsible. To the extent that specific subsurface conditions have not been characterized or identified, GEI/Atlantic is not responsible.

GEI/Atlantic has performed this study in a professional manner using that degree of skill and care exercised for similar projects under similar conditions by reputable and competent environmental consultants. The conclusions provided by GEI/Atlantic are based solely on the scope of work conducted, and on observations and limited explorations described within this submittal at the time these services were conducted. No other warranty, expressed or implied, is made as to the professional opinions included by GEI/Atlantic in this report.


REFERENCES

1. Water Quality Classification Map of Connecticut. Connecticut Department of Environmental Protection, Water Compliance Unit, 1987.

2. Community Water Systems in Connecticut. A 1984 Inventory. CTDEP, Natural Resources Center.

3. Atlas of the Public Water Supply Sources and Drainage Basins of Connecticut. June 1982, D.E.P. Bulletin No. 4, CTDEP and Natural Resources Center.


APPENDIX A

METRIC EQUIVALENT UNITS

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METRIC EQUIVALENTS

Metric Lengths

1 millimeter (mm)

10 millimeters

10 centimeters

10 decimeters

10 meters

100 meters

1000 meters

linch

Ifoot

lyard

1 mile

1000 cu. millimeters

1000 cu. centimeters

1000 cu. decimeter

1 cu. inch

1 cu. foot

1 cu. yard

100 sq. millimeters

100 sq. centimeters

100 sq. decimeters

100 sq. meters

10,000 sq. meters

100 hectares

1 sq. inch

1 sq. foot

1 sq. yard

1 acre

1 sq. mile

0.03937 in.

1 centimeter (cm) 0.3937 in.

1 decimeter 3.937 in.

1 meter (m) 3.28 feet

1 dekameter 10.93611yd.

1 hectometer 109.3611 yd.

1 kilometer 0.62137 miles

2.54 centimeters

0.3048 meters

0.914401 meters

1.609347 kilometers

Metric Volumes and U.S. Equivalents

1 cu. centimeter 0.06102 cu. in.

1 cu. decimeter

1 cu. meter (stere) 1.3097cu. yds or 35.314 cu. ft.

16.387 cu. centimeters

0.028317 cu. meters

0.7646 cu. meters

Metric Areas and U.S. Equivalents

1 sq. centimeter (sq. cm.)

1 sq. decimeter = 15.5 sq. in.

1 sq. meter (centare) = 1.196 sq. yds.

1 are = 119.6 sq. yds.

1 hectare = 2.47103 acres

1 sq. kilometer = 0.38610 sq. mi.

6.45165 sq. centimeters

9.290034 sq. decimeters

0.836131 sq. meters

0.40469 hectares

2.59 sq. kilometers = 259 hectares

1.093611yd.

APPENDIX B

BORING LOGS

BORING LOG

Boring ID: P1E

PROJECT NUMBER: 99253 DRILLER: Gould Drilling Co. SITE NAME: Stevenson Dam DRILLING METHOD: LOCATION: Monroe/Oxford. CT SAMPUNG METHOD: DATE STARTED: 06/15/99 WATER TABLE ELEVATION (ft): COMPLETED: 06/15/99 WEATHER; Party Sunnv 80* BORING DEPTH: iff INSPECTOR: Steven Hawkins

Depth Description Continents

0-2" Recovery* 18" Very loose, dark fine sand and organic SEDIMENT. Four samples taken at 6-inch intervals One composite sample was taken from 0 - 2*.

2--41 Recovery «1" Very loose, brown, very fine sandy SEDIMENT. No samples taken due to lack of recovery.

4' -6* Recovery* 18* 8" « very fine SAND. 10" « Medium to fine SAND. Four samples taken at 6-inch intervals.

ff-ff Recovery* 19* 12" « Medum fine SAND, r = Medium SAND and GRAVEL Four samples taken at 6-inch intervals. One composite sample was taken from 4' • 8'.

8*- 10* Recovery « 12* Medium SAND and GRAVEL Two samples taken at 6-inch intervals.

Iff END OF BORING

IGEI Consultants, Inc.

BORING LOG

Boring ID: P3E

PROJECT NUMBER: 99253 DRILLER: Gould Drilling Co. SITE NAME: Stevenson Dam DRILLING METHOD: LOCATION: Monroe/Oxford. CT SAMPLING METHOD: DATE STARTED: 07/06/99 WATER TABLE ELEVATION (ft): COMPLETED: 07/06/99 WEATHER! Sunnv 100* BORING DEPTH: 101 INSPECTOR: Steven Hawkins

Depth Description Comments

0-21 Recovery* 24' Very toose, black organic fine SEDIMENT. Four samples taken at 6-inch intervals. One composite sample was taken from 0-2*.

2-4' Recovery « 12" Very loose black organic fine SEDIMENT and mednjmsand. Two samples taken at Gnnch intervals. One composite sample was taken from 0-4'.

4' -61 Recovery* 18* Grey medum to fine SAND and GRAVEL, trace organics. Three samples taken at 6-inch intervals. one composite sample taken tram 4 -o .

ff-ff Recovery = 6* Grey medkim to fine SAND. One sample taken at 6-inch interval.

ff-IO1 Recovery* 12* Grey medkim to fine SAND. Two samples taken at 6-inch intervals. One composite sample taken from CM?.

10 END OF BORING

IGEI Consultants, Inc.

APPENDIX C

LABORA TORY ANAL YTICAL RESUL TS AND

CHAIN-OF-CUSTODY FORMS

M I I K K M

( 'OKI'OK \ I H l N

July 16, 1999 GEI Consultants, Inc. 188 Norwich Avenue Colchester, CT 06415 Attn: Mr. Steven Hawkins

RE: Client Project: Stevenson Dam Lab Project #: 61 106

Dear Mr. Hawkins:

Enclosed please find the data report of the required analyses for the samples associated with the above referenced project. If you have any questions regarding this report, please call me.

We appreciate your business.

Edward A. Lawler Laboratory Operations Manager

175 Metro Center Boulevard • Warwick. Rhode Island 02886-1755 (401) 732-3400 • Fax (401) 732-349? or (401) 738-1580 • email: [email protected]

mailto:[email protected]

Client: GEI Consultants, Inc.

Client Project: Stevenson Dam

Lab Project: 61106

Date samples received: 6/16/99

Project Narrative

This data report includes die analysis results for eighteen (18) soil samples that were received from GEI Consultants, Inc. on June 16,1999. Analyses were performed per specification in the Chain of Custody form. For reference, a copy of the Mitkem Sample Log-In form is included for cross-referencing the client sample ID and laboratory sample ID.

All of the analyses were performed according to method Trirrifinitinn'jM mmtifitid by Mitixm Please note that the common laboratory contaminants acetone, methylene chloride and methyl ethyl ketone were detected in several soil samples, but only methyl ethyl ketone was detected in the associated method blank. The presence of acetone and methylene chloride are potentially due to laboratory contamination.

No other unusual occurrences were noted during sample analysis.

This data report has been reviewed and is authorized for release as evidenced by the signature below..

Edward A. Lawler Laboratory Operations Manager

001

Data Flag/Qualifiers:

J This flag indicates an estimated value due to either • the compound was detected at below the Reporting Limit, or • estimated concentration for Tentatively Identified Compound

B For organic analyses, this flag indicates the analyte was also detected in the associated Method Blank. The B flag has an alternative meaning for CLP-type metals analyses, indicating a "trace" concentration below the normal reporting limit and above the detection limit

D This flag indicates the analyte concentration was obtained from a diluted analysis

E This flag indicates the analyte concentration exceeded the Calibration Range

P This flag is used for Pesticides/PCB/Herbicide analyte when there is a greater than 40% difference for detected concentration between the two GC columns used for Primary and Confirmation analyses. This difference typically indicates an interference, causing one value to be unusually high. The lower of the two values is reported in the Analysis Report.

U Not Detected. This compound was analyzed-for but not detected. Reporting limit is the value listed.

002

Analysis Report: Polychlorinated Biphenyls (PCB)

Client GEI Consultants, Inc.

Client ID: P1E(0-6)

Lab ID: 61106001

Analysis: Method 8082

Anatvte

Aroctor-1016

Arodor-1221

Arodor-1232

Arodor-1242

Arodor-1248

Arodor-1254Arodor-1260

Surrogate Recovery:

2,4,5,6-Tetrachtoro-m-xylene

Decachtorobiphenyl

ND=Not Detected

BfiSUttS

ND

ND

ND

ND

ND

92 P ND

80%

78%

Analysis Date: 6/20/99

Matrix: Soil, 42% solids

Concentration in: ug/kg. dry weight basis Dilution: 1

Reporting

78

78

78

78

78

78

78

QC Batch: B0617-BS1

... 003 Page 1 of 1 61106001

M I I K I M


Client: GEI Consultants, Inc. Client ID: P1E(6-12)

Lab ID: 61106002 Analysis. Method 8062

AnaMe

Arock>r-1016Arodor-1221Arodor-1232Arodor-1242Arodor-1248Aroclor-1254Arodor-1260

Surrogate Recovery: 2,4,5,6-Tetrachtoro-m-xyteneDecachtorobiphenyl

ND=Not Detected

BfiSUttS

NO ND ND ND ND 100 ND

83% 78%

Analysis Date: 6/20/99 Matrix: Soil, 45% solids Concentration in: ug/kg, dry weight basis Dilution: 1

Reporting Limits

74

74

74

74

74

74

74

QC Batch: B0617-BS1

.. 004 Page 1 of 1 61106002

\

\

I I K I M

Analysis Report: Polychlorinated Biphenyls (PCS)


Client ID: P1E(12-18) Lab ID: 61106003 Analysis: Method 8082

Analyte

Arodor-1016 Arodor-1221 Arodor-1232

Aroclor-1242 Arodor-1248 Arodor-1254

Arodor-1260

Surrogate Recovery: 2,4,5,6-Tetrachtoro-m-xytene Decachtorobiphenyl

ND=Not Detected

Results

ND ND

ND ND

ND 85 P

ND

76% 72%


Matrix: Soil, 39% solids Concentration in: ug/kg, dry weight basis Dilution: 1

Reporting Limits

84

84

84

84

84

84

84

QC Batch: B0617-BS1

Page 1 of 1 61106003

005

M I I k I M




Concentration in: ug/kg, dry weight basis

Dilution: 1

Reporting Limits

83

83

83

83

83

83

83

QC Batch: B0617-BS1


Client ID: P1E(18-24)

Lab ID: 61106004

Analysis. Method 8082

Analyte

Arodor-1016

Arodor-1221

Arodor-1232

Arodor-1242

Arodor-1248

Aroclor-1254

Arodor-1260

Surrogate Recovery:

2,4.5,6-Tetrachtoro-m-xylene

Decachtorobiphenyl

ND=Not Detected

Results

ND

ND

ND

ND

ND

240 P

ND

72%

70%

Page 1 of 1 61106004

006

M I I K I M




Concentration in: ug/kg, dry weight basis Dilution: 1

Reporting Limits

45

45

45

45

45

45

45

QC Batch: B0617-BS1


Client ID: P1E(48-54)

Lab ID: 61106005


Analyte

Arodor-1016Arodor-1221Arodor-1232

Arodor-1242Aroctor-1248

Arodor-1254

Aroctor-1260

Surrogate Recovery: 2.4.5.6-Tetrachloro-m-xylene

Decachtorobiphenyl

ND=Not Detected

Results

ND ND ND

ND ND

ND

ND

83%

75%

':. 007 Page 1 of 1 61106005

M I I K I M


Client: GEI Consultants, Inc. Client ID: P1E(54-60)

Lab ID: 61106006


Analyte

Arodor-1016

Arodor-1221

Arodor-1232 Arockx-1242

Arodor-1248

Arodor-1254

Arodor-1260

Surrogate Recovery:

2,4,5,6-Tetrachkxo-m-xylene Decachtorobiphenyl

ND=Not Detected

Results

NO

NO

NO

NO

NO

NO

NO

84%

76%




Dilution: 1

Reporting

41

41

41

41

41

41

41

QC Batch: B0617-BS1

Page 1 of 1 61106006

008

M 1 I K K M

CORPORATION


Client 6EI Consultants, Inc. Client 10: Lab ID: 61106009


Analyte

Arodor-1016 Arockx-1221

Arodor-1232 Arockx-1242 Arodor-1248 Arodor-1254

Arodor-1260

Surrogate Recovery: (%) 2,4,5,6-Tetrachtoro-m-xylene Decachtorobiphenyl

ND=Not Detected

Results

ND ND ND ND ND ND 330

86% 80%


Matrix: Soil. 29% solids Concentration in: ug/kg, dry weight basis Dilution: 1

Reporting

111

111

111

111

111

111

111

QC Batch: B0617-BS1

.. 009 Page 1 of 1 61106-PCB

M I T K K M

('ORI'OKVIION


Client:

Client ID:Lab ID:

Analysis:

GEI Consultants, Inc.

P2E( 24-30) 61106010

Method 8082


Matrix: Soil. 27% solids


Dilution: 1

Analyte Results

Reporting Limits

Arodor-1016 ND 119

Aroctor-1221 ND 119

Arodor-1232 ND 119

Arodor-1242 ND 119 Arodor-1248 ND 119 Aroctor-1254 ND 119

Aroctor-1260 370 119

QC Batch: B0617-BS1

Surrogate Recovery: (%) 2.4,5.6-Tetrachloro-m-xytene 78% Decachlorobiphenyl 71%

ND=Not Detected

. 010 Page 1 of 1 61106-PCB

\

\

M I 1 K K M

C'OKI'OKVIION


Client: GEI Consultants, Inc. Analysis Date: 6/21/99

Client ID: P2E ( 30-36) Matrix: Soil, 46 % solids •

Lab ID: 61106011 Concentration in: ug/kg, dry weight basis

Analysis: Method 8082 Dilution: 1

Reporting

Analyte Results Limits

Arodor-1016 ND 70

Arodor-1221 ND 70

Arodor-1232 ND 70

Arodor-1242 ND 70

Arodor-1248 ND 70 Arodor-1254 ND 70

Arock>r-1260 360 70

QC Batch: B0617-BS1 Surrogate Recovery. (%)

2,4,5.6-Tetrachtoro-nvxylene 84%

Decachlorobiphenyl 79%

ND=Not Detected

Oil Page 1 of 1 61106-PCB

M I T K K M C'OKI'OK \ I ION



Client ID: P2E( 40-54)

Lab ID: 61106012

Analysis. Method 8082

Results

Arodor-1016 ND

Arodor-1221 ND

Arodor-1232 ND

Arodor-1242 ND

Afodor-1248 ND

Arodor-1254 ND

Arodor-1260 630

Surrogate Recovery: (%)

2,4,5,6-TetrachkxtKTVxylene 79% Decachtorobipnenyl 75%

ND=Not Detected



Concentration in: ug/kg. dry weight basis Dilution: 1

Reporting

Limits

82 82 82 82 82 82 82

QC Batch: B0617-BS1

01: Page 1 of 1 61106-PCB



Client ID:

Lab ID: Method Blank, B0617-BS1


Anatyte Results

Arodor-1016 ND Arodor-1221 ND Arodor-1232 ND Arodor-1242 ND Aroctor-1248 ND Aroctor-1254 ND

Arodor-1260 ND

Surrogate Recovery: 2.4,5,6-Tetrachloro-m-xylene 85% Decachtorobiphenyl 86%

ND=Not Detected


Matrix: Solid

Concentration in: ug/kg

Dilution: 1

Reporting Limits

33

33

33

33

33

33

33

QC Batch: B0617-BS1

Page 1 of 1 61106-MB 013

M I I K K M

C'OKPOR \IION


Client GEI Consultants, Inc. Analysis Date: 6/19/99

Client 10: Matrix: Solid

Lab ID: Method Blank. B0617-BS1 Concentration in: ug/kg

Analysis: Method 8082 Dilution: 1

Reporting

Anatyte Results Limits

Arodor-1016 ND 33

Arodor-1221 ND 33

Arodor-1232 ND 33

Aroctof-1242 ND 33

Arodor-1248 ND 33

Arodor-1254 ND 33

Arodor-1260 ND 33

QC Batch: B0617-BS1

Surrogate Recovery: (%)

2,4,5,6-Tetrachloro-m-xytene 85% Decachtorobiphenyl 86%

ND=Not Detected

Page 1 of 1 61106-PCB

SOIL PCB LAB OUNTKOti

Lab Name: MITKEM CORPORATION Contract:

Lab Code: MITKEN Case Mb.: SAS No. : SDG NO.: 61106

Matrix Spike Sample No.: BBLK01

SPIKE SAMPLE LCS LCS QC. ADDED CONCENTRATION CONCENTRATION % LIMITS

COMPOUND (ug/Kg) (ug/Kg) (ug/Kg) REC # REC.

Aroclor-1016 330 0.00 300 91 62-155 Aroclor-1260 330 0.00 310 94 56-173

# Column to be used to flag recovery and RPD values with an asterisk

* Values outside of QC limits

RPD: 0 out of 0 outside limits Spike Recovery: 0 out of 2 outside limits

COMMENTS:

FORM III PCB

C 015

Lab Name: MITKEM CORPORATION Contract:

Lab Code: MITKEM Case No.: SAS No.: SDG No.: 61106

Matrix Spike Sample No.: BBLK01

spijdiADDED

SAMPLE CONCENTRATION

LCS CONCENTRATION

LCS %

QC. LIMITS

COMPOUND (ug/Kg) (ug/Kg) (ug/Kg) RBC # RBC.

Aroclor-1016 330 0.00 300 91 62-155 Aroclor-1260 330 0.00 310 94 56-173

# Column to be vised to flag recovery and RED values with an asterisk

* Values outside of QC limits

RED: 0 out of 0 outside limits Spike Recovery: 0 out of 2 outside limits

COMMENTS:

FORM III PCB

•:i 016

\

M I I K I M

Analysis Report: Total Metals

Client: GEI Consultants, Inc. Client ID: P1E(0-2) Concentration in: mg/kg. dry weight basis

Lab ID: 61106007 Analysis Date: 6/22/99

Matrix: Soil, 64% solid Analysis Method: 7471A (Mercury) 601OA (Others)

Reporting

Analvte Results Limit

Arsenic 5 1

Barium 44 20

Cadmium 1.3 0.5 Chromium 14 2 Lead 23 1 Mercury 0.7 0.3

Selenium 9 2

Silver ND 3

QC Batch: 0622PBS

ND = Not Detected

Page 1 of 1 61106007

\

017

M i l k I M


Client: GEI Consultants, Inc. Client ID: P1E (4-8) Concentration in: mg/kg, dry weight basis Lab ID: 61106008 Analysis Date: 6/22/99 Matrix: Soil, 84% solid Analysis Method: 7471A (Mercury)

601OA (Others)

Reporting Anatvte Results Limit

Arsenic 5 1 Barium 53 20 Cadmium 1.2 0.5 Chromium 13 2 Lead 7 1 Mercury ND 0.3 Selenium 8 2 Silver ND 3

QC Batch: 0622PBS ND = Not Detected

Page 1 of 1 61106008

018

M i l k I M


Client: GEI Consultants, Inc. Client ID: Lab ID: Prep Blank. 0622PBS

Analvte

Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver

ND = Not Detected

Concentration in: mg/kg Analysis Date: 6/22/99 Analysis Method: 7471A (Mercury)

601OA (Others)

Reporting Results Limit

ND 1 ND 20 ND 0.5 ND 2 ND 1 ND 0.3 ND 2 ND 3

QC Batch: 0622PBS

Page 1 of 1 61106-MB

01£

M I I K I M


Client: Client ID: Lab ID: Matrix:

Analvte


QC Batch:

GEI Consultants, Inc.

Lab Control Sample, 0622LCSS

Solid

0622PBS

Analysis Date: Analysis Method:

% Recovery

102 105 103 107 103 85 96 101

6/22/99 7471A (Mercury) 601OA (Others)

61106-LCS Page 1 of 1

02C

Ml I K I M

Analysis Report: Volatile Organic Compounds

Client: GEI Consultants, Inc. Client ID: P1E(0-2) Lab ID: 61106007 Analysis: Method 8260B

Analyte

Dichlorodifluoromethane Chtoromethane Vmyl chloride Bromomethane Chtoroethane Trichtorofluoromethane 1.1-Dichloroethene Carbon disulfide lodomethane Acetone Methylene chloride trans-1,2-Dichtoroethene 1.1-Dichloroethane Vinyl acetate 2,2-Dichtoropropane cts-1,2-Dichtoroethene Methyl ethyl ketone Bromochtoromethane Chloroform 1.1.1-Trichloroethane Carbon tetrachtoride 1,1 -Dichloropropene Benzene 1,2-Dichtoroethane Trichloroethene 1,2-Dtchk>ropropane Dibromomethane Bromodichloromethane 2-Chloroethyl vinyl ether cis-1,3-Dichloropropene 4-Methyl-2-pentanone Toluene

Results

NDNDNDNDNDNDNDNDND48

ND

ND

ND

ND

ND

ND

16 B

NDNDNDNDNDNDNDNDNDNDNDNDNDNDND


Reporting Limits

10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10

10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10

Page 1 of 2 61106007

021

Client ID: P1E(0-2) Lab ID: 61106007

Analyte

trans-1,3-Dichloropropene 1,1.2-Trichloroethane Tetrachkxoethene 1,3-Dichloroprooane 2-Hexanone Dibromochtoromethane 1.2-Dibromoethane (EDB) Chkxobenzene 1,1.1,2-Tetrachkxoethane Ethylbenzene Xytenes, total Styrene Bromoform Isopropylbenzene Bromobenzene 1.1,2,2-Tetrachtoroethane 1,2,3-Trichkxopropane n-Propylbenzene 2-Chtorotoluene 4-Chtorotoluene 1,3.5-Trimethylbenzene tert-Butylbenzene 1,2.4-Trimethylbenzene sec-Butylbenzene 1,3-Dichlorobenzene 4-lsopropy (toluene 1,4-Dichlorobenzene 1,2-Oichlorobenzene n-Butylbenzene 1,2-Oibromo-3-chioropropane 1,2,4-Trichtorobenzene Hexachlorobutadiene 1,2,3-Trichkxobenzene MTBE Naphthalene

Surrogate Recovery: Dtbromofluoromethane 1,2-Dfchloroethane-d4 Toluene-d8 Bromofluorobenzene

ND = Not Detected

Results

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

98% 97% 84% 82%

Page 2 of 2

Reporting Limits

10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10

QC Batch: V5B0618A

61106007

\

022

M i l k I M


Client GEI Consultants, Inc. Client ID: P1E(4-8) Lab ID: 61106008 Analysis: Method 8260B

Analyte

Dichtorodifluoromethane Chloromethane Vinyl chloride Bnxnomethane Chkxoethane Trichkxofluoromethane 1.1-Dichloroethene Carbon disulfide lodomethane Acetone Methytene chloride trans-1,2-Dicnloroethene 1,1-Oichtoroethane Vinyl acetate 2,2-Oichloropropane cis-1,2-Dichloroethene Methyl ethyl ketone Bromochlorometnane Chloroform 1,1.1 -Trichloroethane Carbon tetrachtoride 1,1-Dtchloropropene Benzene 1,2-Dichloroethane Trichloroethene 1,2-Oichloropropane Dibromomethane Bromodichloromethane 2-Chtoroethyl vinyl ether cis-1,3-Dichloropropene 4-Methyl-2-pentanone Toluene

Results

ND

ND

ND

ND

ND

ND

ND

ND

ND

18

ND

ND

ND

ND

ND

ND

6B

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND


Reporting Limits

6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6

Page 1 of2 61106008

\ \

023

M i l K I M

Client ID: P1E(4-8) Lab ID: 61106008

Analyte

trans-1,3-Dichloropropene 1.1,2-Trichtoroethane Tetrachloroethene 1,3-Oichloropropane 2-Hexanone Dibrornochloromethane 1,2-Dibromoethane (EDB) Chkxobenzene 1.1.1,2-Tetrachloroethane Ethylbenzene Xytones, total Styrene Bromoform Isopropylbenzene Bromobenzene 1,1,2,2-Tetrachtoroethane 1,2,3-Trichkxopropane n-Propylbenzene 2-Chlorotolucne 4-Chtorotoluene 1,3.5-Trimethytbenzene tert-Butylbenzene 1,2.4-Trimethylbenzene sec-Butylbenzene 1,3-Dichlorobenzene 4-lsopropyltoluene 1,4-Oichlofobenzene 1,2-Dichlorobenzene n-Butylbenzene 1,2-Dibromo-3-chloropropar»e 1,2,4-Trichtorobenzene Hexachtorobutadiene 1,2,3-Trichtorobenzene MTBE Naphthalene

Surrogate Recovery: Oibromofluoromethane 1,2-Dichloroethane-

M I I K I M


Client GEI Consultants, Inc. Client 10: P2E (0-4) Lab ID: 61106013 Analysis: Method 8260B

Anatyte

Dichlorodifluoromethane Chtoromethane Vmyl chloride Bromomethane Chkxoethane Trichkxofluoromethane 1,1-Dichloroethene Cartxjn disulfide lodomethane Acetone Methytene chloride trans-1,2-Oichloroethene 1.1-Oichloroethane Vinyl acetate 2,2-Dichloropropane cis-1,2-Dichloroethene Methyl ethyl ketone Bromochloromethane Chtoroform 1.1,1-Trichtoroethane Carbon tetrachloride 1.1 -Dichloropropene Benzene 1,2-Oichloroethane Trichtoroethene 1,2-Oichloropropane Dibromomethane Bromodichloromethane 2-Chloroethyl vinyl ether cis-1,3-Dichloropropene 4-Methyl-2-pentanone Toluene

Results

NONDNDNDNDNDNDNDND20092

NDNDNDNDND61 BNDNDNDNDNDNDNDNDNDNDNDNDNDNDND

Page 1 of 2


Reporting Limits

14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14

14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14

61106013

025

Client ID: P2E (0-4)

Anatyte

trans-1,3-Dichloropropene 1,1,2-Trichtoroethane Tetrachloroethene 1,3-Dichloropropane 2-Hexanone Dibromochloromethane 1,2-Oibromoethane (EDB) Chkxobenzene 1,1.1,2-Tetrachloroethane Ethylbenzene Xytenes, total Styrene Bromoform Isopropylbenzene Bromobenzene 1.1,2,2-Tetrachtoroethane 1,2,3-Trichloropropane n-Propylbenzene 2-Chtorototuene 4-ChJorotoluene 1,3,5-Tnrnethylbenzene tert-Butylbenzene 1,2,4-Trimethylbenzene sec-Butylbenzene 1,3-Oichlorobenzene 4-lsopropyttoiuene 1,4-Dichtorobenzene 1,2-Dichlorobenzene n-Butylbenzene 1,2-Dibfomo-3-chloropropane 1,2,4-Trichtorobenzene Hexachtorobutadiene 1,2,3-Trichlorobenzene MTBE Naphthalene

Surrogate Recovery: Dibromofluoromethane 1,2-Dichloroethane-d4 Toluene-d8 Bromofluorobenzene

ND = Not Detected

Results

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

93% 91% 83% 76%

Page 2 of 2

Lab ID: .

Reporting Limits

14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14

61106013

QC Batch: V5B0618A

61106013

026


Client: GEI Consultants, Inc. Client ID: P2E(8-12) Lab ID: 61106014 Analysis: Method 8260B

Analyte

Dtchtorodifluoromethane Chloromethane Vinyl chloride Bromomethane Chloroethane Trichkxofluoromethane 1,1 -Dichtoroethene Carbon disulfide lodomethane Acetone Methytene chloride trans-1,2-Dichloroethene 1,1-Oichloroethane Vinyl acetate 2,2-Dichloropropane cis-1,2-Dichloroethene Methyl ethyl ketone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon tetrachtoride 1,1-Dichtoropropene Benzene 1,2-Dichloroethane Trichtoroethene 1,2-Dichloropropane Dibromomethane Bromodichloromethane 2-Chtoroethyl vinyl ether cis-1,3-Dichloropropene 4-Methyl-2-pentanone Toluene

Results

ND

ND

ND

ND

ND

ND

ND

ND

ND

21

7

ND

ND

ND

ND

ND

6B

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND


Reporting Limits

6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6

Page 1 of 2 61106014

027

M I I K I M

Client ID: P2E (8-12)

Anatyte

trans-1,3-Dichloropropene 1,1,2-Trichtoroethane Tetrachtoroethene 1,3-Dichloropropane 2-Hexanone Dibromochkxornethane 1,2-Dibromoethane (EDB) Chkxobenzene 1.1,1,2-Tetrachk>roethane Ethylbenzene Xytenes, total Styrene Brornofbrrn Isopropylbenzene Bromobenzene 1,1.2,2-Tetrachtoroethane 1,2,3-Trichloropropane n-Propylbenzene 2-ChkxotoJuene 4-Chlorototuene 1,3,5-Trimethylbenzene tert-Butylbenzene 1,2,4-Trimethylbenzene sec-Butylbenzene 1,3-Dichtorobenzene 4-lsopropyttoluene 1,4-Dichlorobenzene 1.2-Dichlorobenzene n-Butylbenzene 1,2-Oibromo-3-chloropropane 1,2,4-Trichkxobenzene Hexachtorobutadiene 1,2,3-Trichtorobenzene MTBE Naphthalene

Surrogate Recovery: Dibromofluoromethane 1,2-Dichloroethane-

M i i k i \i


Client GEI Consultants, Inc. Client ID: Lab ID: Method Blank, V5B0618A Analysis: Method 8260B

Anatyte

DichlorodifluoromethaneChtoromethaneVmyl chlorideBnxnomethaneChkxoethaneTrichkxcfluorornethane1.1-DtahtoroetheneCarbon disurfidelodomethaneAcetoneMethytene chloridetrans-1,2-Dichloroethene1,1-OichloroethaneVinyl acetate2,2-Dichloropropaneds-1,2-DichloroetheneMethyl ethyl ketoneBrorriochlorornethaneChloroform1,1,1-TrichloroethaneCarbon tetrachloride1,1-DichtoropropeneBenzene1,2-DichloroethaneTrichloroethene1,2-DichtoropropaneDibromomethaneBromodichloromethane2-Chloroethyl vinyl ethercis-1,3-Dichloropropene4-Methyl-2-pentanoneToluene

HfiSUttS

ND NO

ND ND

ND ND

ND ND

ND ND

ND ND

ND ND

ND ND

6 ND

ND ND

ND ND

ND ND

ND ND

ND ND ND ND

ND ND

Analysis Date: 6/18/99 Matrix: Solid Concentration in: ug/kg Dilution: 1

Reporting Limit?

5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5

Page 1 of2 61106-MB

A 029

M i l k I M

Client ID: Lab ID: Method Blank, V5B0618A

Anatyte

trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachtoroethene 1,3-Oichk>ropropane 2-Hexanone Dibnxnochloromethane 1,2-Oftxomoethane (EDB) Chkxobenzene 1,1.1 ,2-Tetrachloroethane Ethytoenzene Xytenes, total Styrene Bromoform Isopropy (benzene Bromobenzene 1,1,2,2-Tetrachtoroetnane 1,2,3-Trichkxopropane n-Propylbenzene 2-Chtorotoluene 4-Chtorotoluene 1,3,5-Trimethylbenzene tert-Butylbenzene 1,2,4-Trimethylbenzene sec-Butylbenzene 1,3-Otchtorobenzene 4-tsopropyttoluene 1,4-Dichlorobenzene 1,2-Dichlorobenzene n-Butytoenzene 1,2-Oftxonx>-3-chloropropane 1,2.4-Trichtorobenzene HexachlorobutadJene 1,2,3-Trichlorobenzene MTBE Naphthalene

Surrogate Recovery: Oibromofluoromethane 1.2-Oichloroethane-

4_>CL UCL r .̂O.O . \WX.^Ct**.*.w\> v

Data tio.e: \urganic \voa Report Date: 23-Jun-1999 11:12

CONG CONG % SPIKE COMPOUND ADDED RECOVERED RECOVERED

ug/Kg ug/Kg

48 Toluene 50 51 102.69 49 trans-l,3-Dichloro 50 51 102.53 52 1,1,2-Trichloroeth 83 1,3 -Dichloropropan 53 Tetrachloroethene

50 50 50

50 51 50

100.77 101.78 99.04

54 2-Hexanone 50 54 107.53 55 Dibromochlorometha 50 50 100.69 56 1, 2-Dibromoethane 58 Chlorobenzene

50 50

52 49

104.54 98.67

59 1,1,1,2-Tetrachlor 60 Ethylbenzene 63 Styrene 64 Bromoform

50 50 50 50

50 50 51 51

100.64 99.50 102.83 101.40

65 Isopropylbenzene 68 1,1,2,2-Tetrachlor

50 50

50 50

100.49 101.02

69 Bromobenzene 50 49 98.79 70 1,2,3-Trichloropro 71 n-Propylbenzene 72 2-Chlorotoluene

50 50 50

52 51 50

103.26 101.39 99.06

73 1,3,5-Trimethylben 74 4-Chlorotoluene

50 50

52 50

103.20 99.40

75 tert-Butylbenzene 76 1,2,4-TrImethylben 77 sec-Butylbenzene 78 1,3-Dichlorobenzen

50 50 50 50

51 50 51 50

101.69 101.19 102.06 99.69

79 4-Isopropyltoluene 81 1,4-Dichlorobenzen 82 n-Butylbenzene 84 1,2-Dichlorobenzen

50 50 50 50

51 50 51 50

101.24 99.36 102.71 99.52

M 85 Xylene (Total) 87 l,2-Dibromo-3-chlo 88 1,2,4-Trichloroben 89 Hexachlorobutadien

150 50 50 50

150 52 51 50

102.34 104.68 101.23 99.07

90 Naphthalene 91 1,2,3-Trichloroben

50 50

51 51

102.61 102.28

AMOUNT AMOUNT % SURROGATE COMPOUND ADDED

ug/L RECOVERED ug/L

RECOVERED

$$$$

30 Dibromof luorometha 35 1,2-Dichloroethane 47 Toluene-d8 67 Bromof luorobenzene

50 50 50 50

51 54 50 50

101.46 107.77 99.80 99.25

LIMITS

80-115 76-12S 76-121 76-12' 76-126 23-13S 77-132 75-124 84-116 83-126 83-116 85-12C 75-12' 75-13E 59-116 82-116 70-121 77-11S 80-12C 78-122 79-121 75-122 78-122 73-124 78-12C 72-131 79-121 72-12E 79-11E 82-11S 55-124 64-12S 64-132 57-121 57-132

LIMITS

76-132 72-134 71-11E 49-146

032

Analysis Report: Semivolatile Organic Compounds

Client GEI Consultants, Inc. Client ID: P1E(0-2) Lab ID: 61106007 Dilution: 1

Analyte

Phenolbis(2-Cnloroethyl)ether2-Chtorophenol1,3-Dichlorobenzene1,4-Oichlorobenzene1,2-Dtehlorobenzene2-Methylphenol2,2'-oxybis3-methylphenol2-MethylnaphthateneHexachtorocydopentadiene2,4,6-Trichtoropnenol2.4,5-Trichtorophenol2-Chloronaphthalene2-NitroanilineDimethylphthalateAcenaphthytene2,6-Dinitrotoluene3-NitroanilineAcenaphthene2,4-Dinitrophenol4-NitrophenolDibenzofuran2,4-Dinitrotoluene

Results

NO NO

NO NO NO NO

NO NO

NO NO

ND ND

NO NO

NO ND

ND ND

ND ND

ND ND

NO NO

NO ND ND

ND ND

ND ND

ND ND

ND ND NO

ND

Analysis Date: 6/28/99 Matrix: Soil. 57% solids Analysis: Method 8270C Concentration in: ug/kg, dry weight basis

Reporting Limits

570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570

1,100 570

1,100 570 570 570

1,100 570

1.100 1,100

570 570

.. 033 Page 1 of 2 61106007

M I I K I M

Client ID: P1E(0-2)

Anatyte

Diethylphthalate Fluorene 4-Chtorophenyl-phenylether 4-Nrtroaniline 4,6-Dinitro-2-methylphenol n-Nitrosodiphenylamine 4-Bromophenyl-phenylether Hexachlorobenzene Pentachtorophenol Phenanthrene Anthracene Di-n-butylphthalate Carbazote Ruoranthene Pyrene Butylbenzylphthalate Benzo(a)anthracene Chrysene 3,3'-Dichlorobenzidine bis(2-Ethylhexyl)phthalate Di-n-octylphthaLate Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene lndeno( 1,2,3-cd)pyrene Dibenz(a.h)anthracene Benzo(g,h,i)perylene

Surrogate Recovery: 2-Fluorophenol PhenoNJS 2-Chtoropnenol-d4 1,2-Dichlorobenzene-d4 Nrtrobenzene-d5 2-Ruorobiphenyl 2,4,6-Tribromophenol p-Terphenyl-d14

ND = Not detected

Results

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 130 J ND ND ND ND ND ND ND

79% 74% 76% 81% 77% 76% 71% 83%

Lab 10: 61106007

Reporting Limits

570 570 570

1,100 1,100

570 570 570

1,100 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570 570

QC Batch: S0623-BS1

I . 034 Page 2 of 2 61106007

\

M I I K I M



Anatyte

Phenol bis(2-Chloroethyl)ether 2-Chlorophenol 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,2-Dichlorobenzene 2-Methylphenol 2,2'-oxy bis(1 -Chtoropropane) 4-Methylphend n-Nrtroso-di-n-propylamine Hexachtoroethane Nitrobenzene Isophorone 2-Nitropnenol 2,4-Dimethylphenol bis(2-Chloroethoxy)methane 2,4-Dichlorophenol 1,2,4-Trichkwobenzene Naphthalene 4-Chloroaniline Hexachlorobutadiene 4-Chtoro-3-methylphenol 2-Methylnaphthatene Hexachlorocyclopentadiene 2,4,6-Trichtorophenol 2,4.5-Trichlorophenol 2-Chloronaphthalene 2-Nitroaniline Dimethylphtnalate Acenaphthytene 2,6-Dinitrotoluene 3-Nrtroaniline Acenaphthene 2,4-Dinitrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinitrotoluene

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Analysis Date:Matrix:Analysis:Concentration in:

Reporting Limits

460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 910 460 910 460 460 460 910 460 910 910 460 460

6/28/99 Soil, 71% solids

Method 8270C ug/kg, dry weight basis

Page 1 of 2 61106008 035

BHttl Client ID: P1E(4-8)

Analyte

Diethylprrthalate Fluorene 4-Ch(oropheny(-phenytether 4-Nitroaniline 4,6-Dinrtro-2-methylphenol n-Nrtrosodiphenylamine 4-Bromophenyl-pnenylether Hexachtorobenzene Pentachtorophenol Phenanthrene Anthracene Di-n-butylphthalate Carbazote Fluoranthene Pyrene ButylbenzylphthaJate Benzo(a)anthracene Chrysene 3,3'-Dichtorobenzidine bis(2-Ethylhexyl)phthalate Di-n-octylphthaiate Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene lndeno< 1,2,3-cd)pyrene Dibenz(a,h)anthracene Benzo(g,h,i)perylene

Surrogate Recovery: 2-Fluorophenol Phenol-d5 2-Chtorophenc4-d4 1,2-Dichlorobenzene-d4 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol p-TerphenyW14

ND = Not detected

Lab ID

Results

NO ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 76 J

ND ND ND ND ND ND ND

82% 75% 78% 81% 78% 81% 65% 92%

Page 2 of 2 61106008

61106008

Reporting Limits

460 460 460 910 910 460 460 460 910 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460 460

QC Batch: S0623-BS1

036

M I I K I M



Analyte

Phenol bis(2-Chkxoethyl)ether 2-Chlorophenol 1,3-Dichlorobenzene 1,4-Dichkxobenzene 1,2-DJchkxobenzene 2-Methylphenol 2.2'-oxybis(1-Chloropropane) 4-Methylphenol n-Nitroso-di-n-propylamine Hexachtoroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Dimethylphenol bis(2-Chloroethoxy)methane 2,4-Dfchlorophenol 1,2,4-Trichtorobenzene Naphthalene 4-Chtoroaniline Hexachtorobutadiene 4-Chtoro-3-methylphenol 2-Methylnaphthalene Hexachtorocydopentadiene 2,4,6-Trichlorophenol 2.4,5-Trichlorophenol 2-Chtoronaphthalene 2-Nitroaniline Dimethylphthalate Acenaphthytene 2,6-Dinrtrotoluene 3-Nitroaniline Acenaphthene 2,4-Dinrtrophenol 4-Nitrophenol Dibenzofuran 2,4-Dinttrotoluene

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Analysis Date: Matrix: Analysis: Concentration in:

Reporting Limits

990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990

2.000 990

2.000 990 990 990

2.000 990

2.000 2.000

990 990

6/27/99 Soil, 33% solids Method 8270C ug/kg, dry weight basis

Page 1 of2 61106013 037

M I I K I M

Client ID: P2E((M)

Analyte

Diethylphthalate Ruorene 4-Chkxophenyl-phenylether 4-Nrtroaniline 4,6-Dinitro-2-methytphenol n-Nrtrosodiphenylamine 4-Bromophenyt-phenytether Hexachtorobenzene Pentachtorophenol Phenanthrene Anthracene Dt-n-butylphthalate Carbazote Fluoranthene Pyrene Butytoenzylphthatete 6enzo(a)anthracene Chrysene 3,3'-Dichk>fobenzicline bis(2-Ethylhexyl)phthalate Di-n-octylphthalate Benzo(b)fluoranthene Benzo(k)fluocanthene Benzo(a)pyrene lndeno(1,2,3-cd)pyrene Dibenz(a.h)anthracene Benzoropnenol-d4 1,2-Oichlorobenzene-d4 Nitrobenzene-cIS 2-Fluorobiphenyl 2,4.6-Tribromophenol p-Terphenyl-d14

NO-Not detected

Results

NO NO NO NO NO NO NO NO NO 290 J NO NO NO 750 J

1,100 NO 310 J 510 J NO 130 J NO 690 J 240 J 440 J NO NO NO

48% 44% 45% 49% 45% 48% 45% 68%

Lab ID: 61106013

Reporting Limits

990 990 990

2.000 2,000

990 990 990

2,000 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990 990

QC Batch: S0617-BS1

Page 2 of 2 61106013 038

I I K I M



Analyte

Phenolbis(2-Chloroe(nyl)ether2-Chtorophenol1,3-Dichlorobenzene1,4-Dichlorobenzene1.2-Oichlorobenzene2-Methylphenol2 *̂-oxybis(1-ChloroprDpane)4-MethylphenoJn-Nifroso-df-n-propylamineHexachtoroethaneNitrobenzeneIsophorone2-Nitrophenoi2.4-Oimethylphenolbis(2-Chloroethoxy)metnane2.4-Oichlorophenol1 ,̂4-TrichtorobenzeneNaphthalene4-ChtoroanineHexachlorobutadiene4-Chkxo-3-methylphenol2-MethylnaphthateneHexachlorocydopentadiene2,4.6-Trichkxophenol2.4,5-Trichkxophenol2-Chkxonaphthalene2-NitroaniKneDimethylphthalateAcenaphthytene2,6-DinrtrotoJuene3-NitroanilineAcenaphthene2,4-OmJtropheno)4-NitrophenoiDibenzofuran2,4-Dinitrotoluene

BfiSUttS

ND ND

ND ND ND ND

ND ND

ND ND

ND ND

ND ND

ND ND

ND ND

ND ND

ND ND

ND ND

ND ND ND

ND ND

ND ND

ND ND

ND ND ND

ND

Analysis Date: 6/27/99 Matrix: Soil, 85% solids Analysis: Method 8270C Concentration in: ug/kg, dry weight basis

Reporting Limits

390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 390 790 390 390 390 790 390 790 790 390 390

Page 1 of 2 61106014 039

Client ID P2E(8-12)

Analyte

Diethylphthalate Fluorene 4-Chtorophenyl-phenylether 4-Nitroaniline 4,6-Dinrtro-2-methylphenol n-Nrtrosodiphenylamine 4-Bromophenyl-pheny tether Hexachlorobenzene Pentachlorophenol Phenanthrene Anthracene Di-n-butylphthalate Carbazote Fluoranthene Pyrene Butytoenzylphthalate Benzo(a)anthracene Chrysene 3.3'-Oichlo(x>benzidine bis(2-Ethylhexyl)phthalate Oi-n-octylphthalate Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene lndeno(1,2,3-cd)pyrene Dibenz(a,h)anthracene Benzo(g,h,i)perylene

Surrogate Recovery: 2-Fluorophenol Phenot-dS 2-Chkxophenol-d4 1,2-Dichlorobenzene-d4 Nrtrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribronx)phenol p-TerphenyW14

ND-Not detected

M I I K I M

( OKI-HI)

Lab ID: 61106014

Reporting Results Limits

ND 390 NO 390 ND 390 ND 790 ND 790 ND 390 ND 390 ND 390 ND 790 ND 370 ND 390 ND 390 ND 390 ND 390 ND 390 ND 390 ND 390 ND 390 ND 390 47 J 390 ND 390 ND 390 ND 390 ND 390 ND 390 ND 390 ND 390

QC Batch: S0617-BS1

70% 64% 66% 79% 73% 70% 58% 78%

040 Page 2 of2 61106014

\


Client GEI Consultants, Inc. Client 10: Lab ID: Method Blank, S0617-BS1 Dilution: 1

Anatyte

Phenol bis(2-Chloroethyl)ether 2-Chkxophenol 1,3-Dichlorobenzene 1,4-Oichlorobenzene 1,2-Dichlorobenzene 2-Methylphenol 2r2*-oxybis(1-Chloropropane) 4-Methylphenol n-Nftroso-dJ-n-propylamine Hexachloroethane Nitrobenzene Isophorone 2-Nitrophenol 2,4-Oimethytphenol bis(2-Chloroethoxy)methane 2,4-Dichlorophenol 1,2,4-Trichkxobenzene Naphthalene 4-Chtoroaniline Hexachkxobutadiene 4-Chkxo-3-methylphenol 2-Methylnaphthalene Hexachtorocyclopentadiene 2,4,6-Trichlorophenol 2.4,5-Trichkxophenol 2-Chtoronaphthatene 2-Nitroaniline Dimethylphthalate Acenaphthytene 2,6-Dinrtrotoluene 3-Nitroaniline Acenaphthene 2,4-Dinrtrophenol 4-Nitrophenol Dibenzofuran 2.4-Dinitrotoluene

Analysis Date: 6/18/99 Matrix: Solid Analysis: Method 8270C Concentration in: ug/kg

Reporting Limits

NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 330 NO 670 NO 330 NO 670 NO 330 NO 330 NO 330 NO 670 NO 330 NO 670 NO 670 NO 330 NO 330

041 Page 1 of 2 61106-MB

M I I K I M

Client ID:

Analyte

Diethylphthalate Fluorene 4-Chtorophenyl-phenylether 4-Nitnoaniline 4.6-Dinitro-2-rnethylDhenc4 n-Nitrosodiphenylamine 4-Bromophenyl-phenytether Hexachtorobenzene PentachtorophenoJ Phenanthrene Anthracene D»-n-butylphtnalate Carbazote Fluoranthene Pyrene Butytoenzylphthalate Benzo(a)anthracene Chrysene 3,3'-Dtchkxobenzidtne t»s(2-Ethylhexyl)phthalate Dt-n-octylphthalate Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene lndeno( 1,2,3-cd)pyrene Dibenz(a,h)anthracene Benzo(g,h,i)perylene

Surrogate Recovery: 2-Fluorophenol PhenoWS 2-ChlorophenoW4 1,2-Dichtorobenzene-d4 Nitrobenzene-d5 2-Fluorobiphenyl 2,4,6-Tribromophenol p-Terphenyl-d14

ND = Not detected

Results

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

71% 74% 75% 75% 69% 71% 73% 77%

Lab ID: Method Blank, S0617-BS1

Reporting Limits

330 330 330 670 670 330 330 330 670 330 330 330 330 330 330 330 330 330 330 330 330 330 330 330 330 330 330

QC Batch: S0617-BS1

Page 2 of2 61106-MB 042

Analysis Report: Semh/olatile Organic Compounds

Client GEI Consultants, Inc. Client ID: Lab ID: Method Blank, S0623-BS1 Dilution: 1

Analyte

Phenolbis

Client ID:

Analyte

Diethylphthalate Fluorene 4-Chlorophenyl-phenylether 4-Nitroaniline 4,6-Dtnitro-2-methylphenol n-Nitrosodiphenylamine 4-Bromophenyl-pnenylether Hexachkxobenzene Pentachtorophenol Phenanthrene Anthracene Di-n-butylphthalate Carbazote Fhioranthene Pyrene Butylbenzylphthatate Benzo(a)anthracene Chrysene 3,3'-Dichlorobenzidine bisrobenzene-d4 Nitrobenzene-dS 2-Fluorobiphenyl 2,4,6-Tribrornophenol p-Terphenyl-d14

1 M 1 1 K1 M I

I ( C IKI'dK V 1 IH\ 1•

Lab 10: Method Blank, S0623-BS1

Reporting Results |_imits

ND 330 NO 330 ND 330 ND 670 ND 670 ND 330 ND 330 ND 330 ND 670 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330 ND 330

QC Batch: S0623-BS1

74% 75% 73% 89% 87% 86% 44% 99%

ND = Not detected

Page 2 of2 61106-MB 044

Report Date: 29-Jun-1999 11:25

Thru-Put Systems, Inc.

^£ C RECOVERY REPORT

Client Name: Client SDG: Sample Matrj, Fraction: SV Lab Smp IdC S0623-LS1 Client Smp ID: SBLK1JLCS Level: LOW Operator:

Data Type: MS DATA SampleType: LCS SpikeLlst File: LCS_8270_SL.spk Quant Type: ISTD Sublist Pile: 8270C.sub Method File: \Organic\SVOA\Sl.i\990626A.B\Sl 8270C.m Misc Info: 3,,LCS,2, , , , , , ,23-JON-99

CONC CONC % SPIKE COMPOUND ADDED RECOVERED RECOVERED

ug/Kg ug/Kg

7 bis(2-Chloroethyl) 6 Phenol

1700 1700

1200 1200

72.84 72.65

9 2-Chlorophenol 10 1,3 -Dichlorobenzen 12 1,4 -Dichlorobenzen 14 1,2 -Dichlorobenzen 16 2-Methylphenol 17 2,2'-oxybis(l-Chlo 19 4-Methylphenol 18 N-Nitroao-di-n-pro 20 Hexachloroethane

1700 1700 1700 1700 1700 1700 1700 1700 1700

1200 1300 1300 1300 1100 1000 1200 1200 1400

74.88 75.94 76.32 76.86 68.07 61.55 74.77 71.69 83.39

22 Nitrobenzene 1700 1300 78.57 23 I sophorone 24 2-Nitrophenol 25 2,4-Dimethyphenol 26 bis(2-Chloroethoxy 28 2,4-Dichlorophenol 29 1,2,4-Trichloroben 31 Naphthalene 32 4-Chloroaniline

1700 1700 1700 1700 1700 1700 1700 1700

1300 1300 510 1300 1400 1500 1400 550

76.41 76.65 30.49 77.61 85.26 88.84 82.89 33.05

33 Hexachlorobutadien 1700 1400 83.21 34 4-Chloro-3-Methylp 35 2-Methylnaphthalen 36 Hexachlorocyclopen 37 2,4,6-Trichlorophe 38 2,4,5-Trichlorophe 40 2-Chloronaphthalen 41 2-Nitroaniline

1700 1700 1700 1700 1700 1700 1700

1600 1300 770 1300 1400 1300 1200

93.05 80.80 46.03 77.55 82.32 79.98 75.24

42 Dimethylphthalate 43 2,6-Dinitrotoluene 44 Acenaphthylene 45 3-Nitroanlline

1700 1700 1700 1700

1500 1400 1300 1400

88.09 86.78 77.63 83.44

47 Acenaphthene 1700 1300 80.09

LIMITS

26-119 38-109 49-104 42-99 43-100 47-100 12-128 35-124 1-138 44-113 43-103 55-103 41-100 53-104 0-166 46-111 28-129 51-107 54-104 0-92 49-110 0-161 46-116 21-137 4-14C 3-156 60-107 50-114 61-111 54-116 61-106 0-126

62-10-/

045

0-166

Data File: \Organic\SVOA\Sl.i\990626A.B\SlA9428.D Report Date: 29-Jun-1999 11:25

SPIKE COMPOUND

48 2,4-Dinitrophenol 50 4-Nitrophenol 51 2,4-Dinitrotoluene 49 Dibenzofuran 52 Diethylphthalate 53 Fluorene 54 4-Chlorophenyl-phe 55 4-Nitroaniline 56 4,6-Dinitro-2-meth 57 N-Nitrosodiphenyla 59 4- Bromophenyl -phen 60 Hexaohi ftroHf*r|*fn'* 61 Pentachlorophenol 63 Phenanthrene 64 Anthracene 65 Carbazole 66 Di-n-butylphthalat 67 Fluoranthene 68 Pyrene 70 Butylbenzylphthala 73 3 , 3' -Dichlorobenzi 71 Benzo (a) anthracene 74 Chrysene 75 bis(2-Ethylhexyl)p 76 Di-n-octylphthalat 77 Benzo (b) fluoranthe 78 Benzo (k) fluoranthe 79 Benzo(a)pyrene 81 Indeno(l,2,3-cd)py 82 Dibenzo(a,h)anthra 83 Benzo (g,h,i)peryle

SURROGATE COMPOUND

$ 3 2-Fluorophenol $ 4 Phenol -d5 $ 8 2-Chlorophenol-d4 $ 13 1,2-DichIorobenzen $ 21 Nitrobenzene-d5 $ 39 2-Fluorobiphenyl $ 58 2,4,6-Tribrotnophen $ 69 Terphenyl-dl4

CONG ADDED ug/Kg

1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700

CONG ADDED ug/Kg

2500 2500 2500 1700 1700 1700 2500 1700

CONG RECOVERED ug/Kg

1200 1500 1500 1300 1400 1400 1400 1400 1200 1600 1300 1400 1000 1400 1400 2400 1400 1300 1500 1500 1000 1400 1200 1600 1600 1400 1500 1300 1200 1100 1200


2000 1900 1900 1400 1400 1400 2000 1600

% RECOVERED

70.42 90.77 89.00 79.49 87.33 87.10 84.05 84.38 73.22 98.18 80.64 83.91 63.21 85.87 84.52 141.24* 84.99 78.86 89.52 91.17 63.16 85.56 73.35 94.73 94.81 81.08 88.71 80.75 73.78 65.42 69.24

% RECOVERED

81.18 75.19 76.10 87.37 82.01 84.77 79.50 97.68

LIMITS

31-119

58-115 63-109 58-116 61-112 60-113 0-135 30-128 0-148 65-118 64-120 0-165 66-115 56-144 52-128 69-112 65-116 47-138 56-125 0-139 64-116 60-116 55-124 55-133 51-128 51-139 61-120 45-123 46-128 43-128

LIMITS

22-120 34-119 35-124 27-131 36-128 42-123 32-133 41-132

046

Report Date: 20-Jun-l999 22:50

Thru -Put Systems, Inc.

/ _ OS RECOVERY REPORT

Client Name: Client SDG: Sample Matri: Fraction: SV Lab Smp Id̂ 80617-LSI Client Smp ID: SBLK1TLCS Level: LOW Operator: RC Data Type: MS DATA SampleType: LCS SpikeList File: EMCON_8270 SL.spk Quant Type: ISTD Sublist File: 8270EMCON.suE Method File: \Organic\SVOA\Sl.i\990618.B\Sl 8270C.m Misc Info: 3,,LCS,2,,, .,,,17-JON-99

CONG CONG % SPIKE COMPOUND ADDED RECOVERED RECOVERED LIMITS

ug/Kg ug/Kg

6 Phenol 1700 1200 74.44 38-109 7 bis(2-Chloroethyl) 9 2-Chlorophenol 10 1,3 -Dichlorobenzen 12 1,4 -Dichlorobenzen 14 1,2 -Dichlorobenzen 16 2-Methylphenol 17 2,2'-oxybis(l-Chlo 19 4-Methylphenol 18 H-Nitroso-di-n-pro 20 Hexachloroethane

1700 1700 1700 1700 1700 1700 1700 1700 1700 1700

1300 1300 1200 1200 1200 1200 1200 1200 1200

. 1300

76.31 78.66 71.57 72.38 73.46 74.68 74.58 71.99 73.10 78.46

26-119 49-104 42-99 43-100 47-100 12-128 35-124 1-138 44-113 43-103

22 Nitrobenzene 1700 1200 69.27 55-103 23 Isophorone 24 2-Nitrophenol 25 2,4-Dimethyphenol 27 Benzoic Acid

1700 1700 1700 1700

1200 1200 660 360

72.83 71.58 39.71 21.71*

41-100 53-104 0-166 41-114

26 bis(2-Chloroethoxy 28 2,4-DichlorophenoI 29 1,2,4-Trichloroben 31 Naphthalene 32 4-Chloroaniline

1700 1700 1700 1700 1700

1200 1200 1200 1200 450

71.30 69.60 69.27 72.75 26.76

46-111 28-129 51-107 54-104 0-92

33 Hexachlorobutadien 1700 1200 70.42 49-110 34 4-Chloro-3-Methylp 35 2-Methylnaphthalen 36 Hexachlorocyclopen 37 2,4,6-Trichlorophe 38 2,4,5-Trichlorophe 40 2-Chloronaphthalen 41 2-Nitroaniline

1700 1700 1700 1700 1700 1700 1700

570 1200 1200 1100 1000 1200 1200

34.02 73.33 74.49 66.71 60.84 71.92 69.61

0-161 46-116 21-137 4-140 3-156 60-107 50-114

42 Dimethylphthalate 43 2,6-Dinitrotoluene 44 Acenaphthylene 45 3-Nitroaniline

1700 1700 1700 1700

1300 1300 1300 570

79.48 78.21 78.80 34.34

61-111 54-116 61-106 0-126

\\

04

0-166

Data File: \Organic\SVOA\Sl.i\990618.B\SlA9261.D Report Date: 20-Jun-1999 22:50

SPIKE COMPOUND

47 Acenaphthene 48 2,4-Dinitrophenol 50 4-Nitrophenol 51 2,4-Dimtrotoluene 49 Dibenzofuran 52 Diethylphthalate 53 Fluorene 54 4-Chlorophenyl-phe 55 4-Nitroaniline 56 4,6-Dinitro-2-meth 57 N-Nitrosodiphenyla 59 4-Bromophenyl-phen 60 Hexachlorobenzene 61 Pentachlorophenol 63 Phenanthrene 64 Anthracene 65 Carbazole 66 Di-n-butylphthalat 67 Fluoranthene 68 Pyrene 70 Butylbenzylphthala 73 3 , 3' -Dichlorobenzi 71 Benzo (a) anthracene 75 bis(2-Ethylhexyl)p 74 Chrysene 76 Di-n-octylphthalat 77 Benzo (b) fluo ran the 78 Benzo (k) fluoranthe 79 Benzo(a)pyrene 81 Indeno(l,2, 3-cd)py 82 Dibenzo(a,h)anthra 83 Benzo ( g, h, Dperyle

SURROGATE COMPOUND

9 3 2-Fluorophenol $ 4 Phenol -d5 $ 8 2-Chlorophenol-d4 $ 13 1,2-Dichlorobenzen $ 21 Nitrobenzene-d5 $ 39 2-Fluorobiphenyl $ 58 2,4,6-Tribromophen $ 69 Terphenyl-dl4

CONG ADDED ug/Kg

1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700

CONG ADDED ug/Kg

2500 2500 2500 1700 1700 1700 2500 1700


1200 1200 970 1300 1200 1400 1200 1300 1300 1200 1400 1300 1400 1000 1300 1300 2600 1400 1400 1300 1300 320 1300 1400 1200 1100 1100 1200 1200 1300 1500 1500

CONC RECOVERED ug/Kg

1900 1900 2100 1200 1100 1200 2000 1300

% RECOVERED

72.74 69.62 58.11 76.24 74.62 83.92 75.44 75.78 78.39 74.83 86.40 79.26 84.13 62.80 78.66 79.78 153.71* 86.39 82.52 77.10 78.55 19.26 80.37 81.94 72.63 65.13 67.61 72.14 74.73 77.34 89.29 89.66

% RECOVERED

74.85 75.99 83.22 73.88 68.17 72.48 78.94 77.22

LIMITS

62-107 31-119

58-115 63-109 58-116 61-112 60-113 0-135 30-128 0-148 65-118 64-120 0-165 66-115 56-144 52-128 69-112 65-116 47-138 56-125 0-139 64-116 55-124 60-116 55-133 51-128 51-139 61-120 45-123 46-128 43-128

LIMITS

13-129 27-126 26-134 18-14C 29-134 37-124 23-144 36-14C

046

M I I K K M ("OKI-OKA i ION

Analysis Report: Total Petroleum Hydrocarbons

Client GEI Consultants, Inc. Analysis: Method 418.1 Matrix: Soil Concentration in: mg/kg, dry weight basis

Lab IP Cltent ID RfiSUtt

Reporting Unyt

61106007 61106008 61106013 61106014

P1E(0-2) P1E(4-8) P2E(0-4) P2E(8-12)

150 56 140 ND

25 25 25 27

6/23/99 6/23/99 6/23/99 6/23/99

NO = Not Detected

Subconi

Page 1 of 1 61106-TPH

M I I K K M

C'OKI'OKA I ION

Analysis Report: Total Organic Carbon

ClientMatrix

GEI Consultants, Inc. Soil

Analysis Method:Units:Analysis Date:

EPA 415.1 %

6/25/99

Lab IP Client ID Result

61106007

61106008 61106013 61106014

P1E(0-2)

P1E(4-8) P2E(CM)

P2E(8-12)

0.94

0.32

1.37

0.18

Reporting Limit 0.10

Subcontracted Page 1 of 1 61106-TOC

050

Analysis Report: SPLP Metals

Client: GEI Consultants, Inc. Client ID: P1E(0-2) Lab ID: 61106015 Matrix: SPLP Leachate

AnaMe


ND = Not Detected

Results

ND 0.3 ND ND

0.03 ND ND ND

Concentration in: mg/L Analysis Date: 6/24/99 Analysis Method: 7470A (Mercury)

601OA (Others)

Reporting Limits

0.01 0.2

0.005 0.02 0.01

0.003 0.02 0.03

QC Batch: SPLP0622B1

Page 1 of 1 61106015

051

M I T K K M COKI'OK VI ION


Client: GEI Consultants. Inc. Client ID: P1E(4-8) Lab ID: 61106016 Matrix: SPLP Leachate

Analvte


ND * Not Detected

Results

ND 0.3 ND ND ND ND ND ND


601OA (Others)

Reporting Limits

0.01 02

0.005 0.02 0.01

0.003 0.02 0.03

QC Batch: SPLP0622B1

Page 1 of 1 61106016

JI

\

052

M I I K K M

('OKI'OK \ I I O N



Client ID: P2E (0-4) Lab ID: 61106017 Matrix: SPLP Leachate

Anarvte


ND * Not Detected


601OA (Others)

Reporting Limits

ND 0.4 ND ND ND ND ND ND

0.01 0.2

0.005 0.02 0.01

0.003 0.02 0.03

QC Ba

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