tetra tech - final site assessment report for gradel … · between may 23 and 25, 2016, and...

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Brad Hartwell Project Manager Tetra Tech, Inc. 25213 Dequindre Road, Madison Heights, Michigan 48071 www.tetratech.com November 23, 2016 Mr. Jon Gulch On-Scene Coordinator U.S. Environmental Protection Agency Region 5 9311 Groh Road Grosse Ile, Michigan 48138 Subject: Final Site Assessment Report for Gradel Landfill EPA Contract No. EP-S5-13-01 Technical Direction Document No. S05-0001-1601-001 Document Tracking No. 1200 Dear Mr. Gulch: Tetra Tech, Inc. (Tetra Tech) is submitting the enclosed Final Site Assessment Report for the Gradel Landfill site at 1100 Otter Creek Road in Oregon, Ohio. This report summarizes activities at the site between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments on the draft report that Tetra Tech submitted on July 28, 2016. If you have any questions regarding this report, please contact me at (248) 719-9366 or via e-mail at [email protected]. Respectfully, Brad Hartwell Project Manager Enclosure cc: Kevin Scott, Tetra Tech Program Manager TDD File

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Page 1: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Brad Hartwell Project Manager

Tetra Tech, Inc. 25213 Dequindre Road, Madison Heights, Michigan 48071

www.tetratech.com

November 23, 2016

Mr. Jon Gulch

On-Scene Coordinator

U.S. Environmental Protection Agency Region 5

9311 Groh Road

Grosse Ile, Michigan 48138

Subject: Final Site Assessment Report for Gradel Landfill

EPA Contract No. EP-S5-13-01

Technical Direction Document No. S05-0001-1601-001

Document Tracking No. 1200

Dear Mr. Gulch:

Tetra Tech, Inc. (Tetra Tech) is submitting the enclosed Final Site Assessment Report for the Gradel

Landfill site at 1100 Otter Creek Road in Oregon, Ohio. This report summarizes activities at the site

between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report

addresses your comments on the draft report that Tetra Tech submitted on July 28, 2016.

If you have any questions regarding this report, please contact me at (248) 719-9366 or via e-mail at

[email protected].

Respectfully,

Brad Hartwell

Project Manager

Enclosure

cc: Kevin Scott, Tetra Tech Program Manager

TDD File

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FINAL SITE ASSESSMENT REPORT

FOR THE

GRADEL LANDFILL SITE

1100 OTTER CREEK ROAD

OREGON, LUCAS COUNTY, OHIO

U.S. Environmental Protection Agency

Emergency Response Branch

Region 5

9311 Groh Road

Grosse Ile, Michigan 48138

Submitted by

Tetra Tech Inc. 25213 Dequindre Road

Madison Heights, MI 48071

EPA Contract No. EP-S5-13-01

Technical Direction Document No. S05-0001-1601-001

Document Tracking No. 1200

November 23, 2016

Prepared by

Brad Hartwell

Project Manager

Approved by

John Dirgo

QA Officer

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 i

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

CONTENTS

Section Page

1.0 INTRODUCTION .......................................................................................................................... 1

2.0 SITE BACKGROUND .................................................................................................................. 3

3.0 FIELD INVESTIGATION ............................................................................................................ 6

3.1 SITE OBSERVATIONS ....................................................................................................... 6

3.2 SUBSURFACE INVESTIGATION ..................................................................................... 7

3.3 LANDFILL CAP ASSESSMENT ........................................................................................ 9

3.4 SAMPLING ACTIVITIES ................................................................................................... 9

3.5 DEVIATIONS FROM THE SAMPLING AND ANALYSIS PLAN ................................ 12

4.0 ANALYTICAL RESULTS.......................................................................................................... 13

4.1 LEACHATE RESULTS ..................................................................................................... 13

4.2 SEDIMENT RESULTS ...................................................................................................... 15

4.3 SOLID MATERIAL RESULTS ......................................................................................... 16

4.4 SURFACE WATER RESULTS ......................................................................................... 16

4.5 OFF SITE IMPACT EVALUATION ................................................................................. 18

5.0 THREATS TO HUMAN HEALTH AND THE ENVIRONMENT ........................................ 22

6.0 REMEDIAL ESTIMATES AND CONSIDERATIONS .......................................................... 24

7.0 CONCLUSIONS .......................................................................................................................... 25

REFERENCES ..................................................................................................................................... 27

APPENDICES

A FIGURES

B TABLES

C FIELD LOGBOOK

D PHOTOGRAPHIC DOCUMENTATION LOG

E SOIL BORING AND TEMPORARY MONITORING WELL LOGS

F CHAINS-OF-CUSTODY

G ENVIRONMENTAL IMPACT DOCUMENTATION

ATTACHMENT

1 LABORATORY ANALYTICAL REPORTS

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 1

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

1.0 INTRODUCTION

The U.S. Environmental Protection Agency (EPA) tasked Tetra Tech, Inc. (Tetra Tech) to perform a site

assessment at the Gradel Landfill site in Oregon, Lucas County, Ohio. This work was assigned under

Superfund Technical Assessment and Response Team (START) Contract No. EP-S5-13-01, Technical

Direction Document (TDD) No. S05-0001-1601-001.

Purposes of this site assessment were to investigate whether contamination from the Gradel Landfill is

migrating off site and to assess whether that contamination is affecting human health and the

environment. To these ends, START collected two solid samples, seven sediment samples, six surface

water samples, and two leachate samples on site. Groundwater sampling, although originally specified,

did not occur per directive of the EPA On-scene Coordinator (OSC). START performed a preliminary

landfill cap assessment by measuring the thickness of clay material above site fill and debris at various

locations throughout the site. Tetra Tech also conducted air monitoring and recorded written and

photographic documentation of site conditions. Tetra Tech conducted the site assessment from May 23 to

25, 2016.

This site assessment report is organized into the following sections:

1. Introduction – Brief description of objectives and scope of the site assessment

2. Site Background – Site description and history

3. Field Investigation – Methods and procedures applied during the site assessment

4. Analytical Results – Analytical results from samples collected during the site assessment

5. Potential Threats to Human Health and the Environment – Conditions at the site that warrant

a removal action under the National Oil and Hazardous Substances Pollution Contingency Plan

(NCP)

6. Remedial Estimates and Considerations – Volume estimates for draining on-site ponds and

capping areas within the powerline easement that crosses the site, and additional remedial

considerations

7. Conclusions – Summary of site assessment findings.

Seven appendices and one attachment also are included. Appendix A contains site maps and sampling

locations. Appendix B includes a detailed estimate of required cap material and summary tables of

analytical results. Appendix C provides a copy of field logbook notes. Appendix D presents the

photographic documentation log of noteworthy site conditions and site assessment activities. Appendix E

includes soil boring and temporary monitoring well logs. Appendix F provides copies of original chain-

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 2

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TDD No.: S05-0001-1601-001

of-custodies (COC) submitted to the laboratory. Appendix G includes an environmental activities

checklist and an environmental activities and impact report for the site.

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 3

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

2.0 SITE BACKGROUND

The Gradel Landfill site, which is a 13.8-acre vacant property located at 1100 Otter Creek Road, in

Oregon, Lucas County, Ohio (the site) is northeast of the intersection of Otter Creek Road and Millard

Avenue (Appendix A, Figure 1). From the 1950s through the 1960s, the site served as an impoundment

for oil recycling processes for the nearby Commercial Oil Services refinery. From 1969 to 1974, the site

operated as the “Gradel Landfill,” also known as the “Old Westover Landfill.” Municipal garbage,

sludges, slag, and industrial wastes were accepted on approximately 10.5 acres of the property during its

historical operation as a landfill. The landfill was licensed and permitted to accept waste to grade-level,

but wastes were accepted far above grade-level. The reported depth of waste was 43 feet below ground

surface (bgs) (Ohio Environmental Protection Agency [Ohio EPA] 2014). In 1976, cover soil was

applied to the landfill, but some areas have been reported as devoid of vegetation, and other areas are

heavily eroded (Ohio EPA 2010). The site is bounded to the north by a landfill owned by Commercial

Oil Services, with Cedar Point Road and Commercial Oil Services’ refinery beyond; to the east by

agricultural land; to the south by a landfill owned by Envirosafe Services of Ohio; and to the west by

Otter Creek Road, with wetlands beyond (Appendix A, Figure 2).

In 1972, Westover Corporation was notified by Toledo-Edison that the Gradel Landfill site had failed to

maintain the appropriate clearance required for the two high-tension overhead power lines transecting the

site because stored waste was too high within the two power-line easements. Westover Corporation

excavated the waste within the power line easements to provide 35-foot clearance

for each of the two power lines. It is not known where the excavated waste was relocated, nor if proper

cap material was installed over the exposed fill within the power line easements. Since that time, surface

water at the site has ponded within the two excavation areas (Ohio EPA 2015).

Bennett & Williams, Inc. prepared a sampling and analysis plan for the City of Toledo in 1989 as part of

the Millard Avenue Improvement Project. The plan compiled site descriptions for the various properties

within the proposed right-of-way from previous reports. The plan reported previous observations of

discolored fluid flowing in the ditch along the north boundary of the Envirosafe property, Gradel Ditch

(per various reports) (Bennett & Williams, Inc. 1989).

In 1990, Ohio EPA completed a Preliminary Assessment of Gradel Landfill, which involved sampling

site soils in conjunction with EPA. Site soils contained elevated concentrations of lead,

bis(2-exylhexyl)phthalate, volatile organic compounds (VOCs) (acetone, cyclohexane, and methyl ethyl

ketone), and pesticides (aldrin and delta-BHC). Seepage of leachate was observed flowing into Gradel

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Oregon, Lucas County, Ohio

November 23, 2016 4

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TDD No.: S05-0001-1601-001

Ditch, which subsequently drained into the west adjoining wetland area that in-turn drains into Otter

Creek. Landfill gases were observed bubbling up through the site ponds (Ohio EPA 1990).

In 1993, EPA contractor PRC Environmental Management, Inc. (PRC) completed a Screening Site

Inspection of Gradel Landfill, which indicated prior to operating as a landfill, most of the site was

underwater, and the west adjoining wetland did not exist. To prepare the site for landfill development,

Westover Corporation drained the site water onto the west adjoining property using a sump and pump

situated in the southwest corner of the site. The site draining activities consequently created the wetland

conditions at the west adjoining property. The site contains approximately 530,000 cubic yards of solid

and liquid wastes. The waste accepted at the site were estimated to be 40 percent household wastes, 30

percent commercial wastes, and 30 percent industrial wastes. Specific wastes historically accepted at the

site included aluminum oxide (a fire hazard), solvents, pesticides, metals, and organic chemicals. Site

observations included landfill gas bubbling in standing water at the site, numerous leachate seeps entering

Gradel Ditch, purplish-black water in Gradel Ditch, and contaminant impacts on adjoining wetlands to the

west. Sediment samples collected from the adjoining wetland area contained detectable concentrations of

semivolatile organic compounds (SVOCs) including 2-methylnaphthalene and bis(2-ethylhexyl)phthalate,

as well as lead — all of which potentially originated from Gradel Landfill. Surface water from Gradel

Ditch and from the hypothesized outfall at the adjoining wetland contained elevated levels of barium and

lead. The contaminants found in the adjoining wetland have the potential to damage flora and fauna and

contaminate food chain species in both the wetland and Otter Creek (PRC 1993).

A Supplemental Resource Conservation and Recovery Act (RCRA) Facility Investigation completed by

Midwest Environmental Consultants, Inc. (MEC) in 1997 included advancement of eight soil borings along

the north side of Gradel Ditch. Reported levels in soil of benzo(a)pyrene, benzo(b)fluoranthene,

benzo(a)anthracene, and dibenzo(a,h)anthracene exceeded EPA Region 9 Industrial Preliminary Remediation

Goals. That investigation also detected metals, SVOCs, VOCs, and cyanide in groundwater above EPA

Region 5 Data Quality Levels. One piezometer detected hydraulic potentials well above grade, indicating the

presence of a sizable pressure gradient uncommon in shallow groundwater. Surface water and sediment in the

Gradel Ditch were also sampled during that investigation. Detections in surface water included metals,

pesticides, anthracene, VOCs (tetrahydrofuran, trichlorofluoromethane, and xylenes), and phenols. Detections

in sediment from the Gradel Ditch included metals, acrylonitrile, phenols, and xylenes (MEC 1997).

Concentrations of benzo(a)pyrene, benzo(b)fluoranthene, and dibenzo(a,h)anthracene in soil from that

investigation exceed current EPA Region 4 Ecological Screening Values (ESVs) and EPA Region 5

Ecological Screening Levels (ESLs). Chromium, lead, benzo(a)pyrene, benzo(a)anthracene, heptachlor

epoxide, and cyanide were detected in groundwater during that investigation exceed current EPA Region 5

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 5

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TDD No.: S05-0001-1601-001

ESLs. Levels of lead, chromium, and bis(2-ethylhexyl)phthalate detected in groundwater from that

investigation exceed current Ohio EPA Aquatic Life Chronic Outside Mixing Zone Averages (OMZAs).

In a Construction Completion Report prepared by FirstEnergy Corporation in 2013, details were provided for

construction activities that occurred on the former Gradel Landfill. A temporary “H” structure for the south

power line that crosses the site was installed on the north portion of the property for maintenance of the

transmission system. During boreholes completed as part of the structure’s installation, fill was encountered to

43 bgs, followed by native clay. Toxicity Characteristic Leaching Procedure (TCLP) analysis of the boring

spoils indicated concentrations of barium (130 micrograms per liter [µg/L]), chromium (340 µg/L), and

chlorobenzene (70 µg/L) were detected, which did not classify the spoils as hazardous waste according to Title

40 of the Code of Federal Regulations (CFR), Part 261 (FirstEnergy Corporation 2013). The detected levels of

chromium and chlorobenzene from the TCLP analysis exceed the current EPA Region 5 Ecological Screening

Levels and Ohio EPA Aquatic Life Outside Mixing Zone Averages for water.

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 6

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TDD No.: S05-0001-1601-001

3.0 FIELD INVESTIGATION

Tetra Tech performed the site assessment between May 23 and 25, 2016. Field investigation activities

included completion of 11 soil borings, installation of two temporary monitoring wells, and collection of

two solid samples, seven sediment samples, six surface water samples (collocated with sediment

samples), and two leachate samples. During these activities, Tetra Tech conducted air monitoring using

a RAE Systems MultiRAE Pro multi-gas monitor to assess the air in the breathing zone for carbon

monoxide, hydrogen sulfide, % lower explosive limit (LEL), % oxygen, and VOCs. An RKI Eagle 2

monitor was also used to monitor % LEL of methane from each borehole during soil boring advancement

and during installations of temporary monitoring wells, in accordance with the site-specific health and

safety plan (Tetra Tech 2016a). All ambient air monitoring readings were at or below background levels.

All activities related to this site assessment were recorded in the field logbook, in accordance with Tetra

Tech Standard Operating Procedure (SOP) No. 024-2, Recording Notes in Field Logbooks (Tetra Tech

2014). A copy of the field logbook is in Appendix C. The following sections describe the site

observations documented during the reconnaissance, details of the subsurface investigation, and sampling

activities completed for the site assessment.

3.1 SITE OBSERVATIONS

On May 23, 2016, the EPA OSC and Tetra Tech mobilized to the site. The site was non-operational and

vacant and accessible to the public. EPA and Tetra Tech personnel conducted a site reconnaissance to

select sampling locations based on site conditions. No leachate seepage was observed during site

activities, so leachate samples were collected from temporary monitoring wells. The absence of leachate

seepage may be the result of drought conditions in the Toledo area at the time of site activities.

According to the U.S. Department of Commerce (USDC), the Toledo area experiences 37 inches of

precipitation per year (USDC 1982). During the site reconnaissance, written and photographic

documentation of current site conditions was recorded, and ideal sampling locations were noted.

Appendix D provides photographic documentation of site conditions during the site assessment.

The following hazards were identified during site assessment activities:

• Numerous mature trees and woody vegetation were observed in the fill area of the site. The large

root spread of mature trees and woody vegetation are undermining the present cap layer.

• Site conditions indicate that cap material at the north and south ponds was excavated and likely

relocated on site (east and west of the ponds) during clearance for the easement. Any cap material

remaining beneath the north and south ponds likely is insufficient for protection against surface

water infiltration, and therefore leachate production.

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 7

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• Fill material was observed above cap material in soil boring B1, the only boring within one of the

two easement excavations, confirming site conditions allow for active leachate production.

• Fencing along the north boundary was submerged in approximately 4 feet of water. Extension of

the north pond beyond the north boundary is likely releasing uncontrolled leachate directly onto

the adjoining parcel to the north.

• Evidence indicated active use of the site by fauna and potential food chain species.

3.2 SUBSURFACE INVESTIGATION

In accordance with the site-specific health and safety plan, Tetra Tech performed continuous air

monitoring in the breathing zone during all soil boring activities using a MultiRAE Pro multi-gas monitor

and an RKI Eagle 2 (Tetra Tech 2016a). Breathing zone readings for all of the constituents monitored

were recorded during the subsurface investigation. Breathing zone readings did not exceed background

levels for any constituent during site assessment activities.

Purposes of the subsurface investigation were to assess thickness of the landfill cap material at various

locations throughout the site and to install two temporary wells for sampling site leachate.

The subsurface investigation included completion of 11 soil borings to between 10 and 16 feet bgs using

direct-push methods. Terra Probe, Inc. personnel installed the soil borings using a GeoProbe 6600 track

rig. Before soil borings began at any location, Terra Probe, Inc. personnel decontaminated the working

end of the direct-push rig. All direct-push drilling equipment and tools were decontaminated after work

at each location in accordance with Tetra Tech SOP No. 002, General Equipment Decontamination (Tetra

Tech 2009). The drilling subcontractor avoided placing equipment, tools, and materials on the ground

during soil boring. Soil was continuously collected within disposable macrocore (polyvinyl chloride)

liners. After it was removed from the borehole, each liner was opened on a clean surface (polyethylene

sheeting).

A qualified geologist described each soil boring in accordance with ASTM International Method D2488

and Tetra Tech’s Borelog Field Guide. The lithology for each boring was classified according to the

Unified Soil Classification System (USCS). Thickness of the cap was established by measuring the total

thickness of the shallowest clay layer.

Soil boring and temporary monitoring well locations were recorded using a Trimble GeoXT portable

global positioning system (GPS) instrument (Appendix A, Figure 3). Copies of the soil boring and

temporary monitoring well logs are included in Appendix E.

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 8

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Site Soils

Site soils generally consisted of either brown or gray clay to between 3 and 6 feet bgs, underlain by fill

mixed with debris down to 16 feet bgs. Exceptions included borings B1, B5, B6, and B11 — all located

east and west of the site ponds. B1 was the only boring location within the power line easement

excavations, and it yielded fill material with layers of debris down to 4.5 feet bgs, underlain by clay to

5.5 feet bgs, followed by fill and debris to boring completion at 15 feet bgs. Brown and gray clay was

observed at borings B5, B6, and B11 down to between 7 and 9.5 feet bgs, underlain by fill and debris to

boring completion.

Similar suspect asbestos-containing white powder was observed above cap material at borings B1 and

B11. A gray suspect slag material was observed immediately underneath the white material in soil boring

B1.

Site Leachate

Leachate levels generally ranged from 6.5 to 10 feet bgs during the subsurface investigation. Leachate

elevations thus were slightly below elevations of the bottoms of the site ponds.

Temporary wells (TW) were installed in soil borings B2 and B5 and were designated TW2 and TW5.

The screen at TW2 was set between 5 and 15 feet bgs, and the screen at TW5 was set between 6 and

11 feet bgs. After 24 hours, the water level in TW2 was measured at 9.02 feet bgs. TW5 was in a low-

lying area, and a water level of 8.0 feet bgs was observed (just below the clay layer) during boring

completion. After 24 hours, the water level in TW5 was measured at 2.3 feet bgs, a jump of 5.7 feet once

the confining layer was removed during boring advancement. This change confirms the abnormally high

groundwater and leachate elevations at Gradel Landfill mentioned in numerous reports from the

Commercial Oil Services property that adjoins to the north, and from the Envirosafe Landfill that adjoins

to the south. Those reports indicated groundwater flowing off site from Gradel Landfill, both to the north

and to the south as a result of the ponded water at high elevation present at Gradel Landfill.

Communication between site leachate and groundwater is evident at Gradel Landfill, and the migration of

contaminated groundwater off site could also be affecting the adjacent wetlands west of Otter Creek

Road. The wetlands drain into Otter Creek, which is another sensitive ecosystem potentially impaired by

Gradel Landfill.

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Oregon, Lucas County, Ohio

November 23, 2016 9

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

3.3 LANDFILL CAP ASSESSMENT

Based on the subsurface investigation, it appears that, except at soil boring B1, suitable cap material is

present at all boring locations (clay layer no less than 2 feet thick) (Appendix A, Figure 4). Total

thickness of the cap material found at boring B1 was 1 foot. Boring B1 was also the only boring within

the power line easement excavations. Thicknesses of cap material at the borings between the north and

south ponds, and at the borings south of the south pond, ranged from 3 to 5 feet. Thicknesses of cap

material at the other soil borings east and west of the site ponds ranged from 6 to 9.5 feet.

These subsurface conditions indicate that material excavated during previous excavations was largely cap

material and was likely relocated at the east and west edges of the ponds. According to previous reports,

landfill gases have been observed bubbling up in the ponding water within the excavations, indicating a

compromised or missing cap throughout the greater footprint of both excavations. It is evident that both

excavations lack sufficient cap material, allowing uncontrolled leachate production at the site. A

discussion of the appropriate steps for remediating the problematic excavations is provided in Section 6.0.

3.4 SAMPLING ACTIVITIES

In accordance with Tetra Tech’s Quality Assurance Project Plan (QAPP) and the site-specific sampling

and analysis plan, Tetra Tech collected two solid samples, seven sediment samples, six surface water

samples (collocated with sediment samples), and two leachate samples for laboratory analysis (Tetra Tech

2016b, c). All sampling was conducted in Level D personal protective equipment (PPE), in accordance

with the site-specific health and safety plan (Tetra Tech 2016a).

Sampling locations were recorded by use of a portable global positioning system instrument, a map of

which is provided in Appendix A, Figure 3. Each sample was assigned a unique sampling identification

number. The identifiers include the following information:

• Site name: Gradel Landfill = GL

• Matrix: Leachate = L, Sediment = SD, Solid = S, Surface Water = SW

• Sample Location: 1 = 01

• Sampling Date: 05/23/2016 = 052316

• Example ID: GL-SW-01-052316

Below are the analyses run for each sample type based on previous reports related to the site:

• Leachate and Surface Water: Target analyte list (TAL) metals, SVOCs, VOCs, PCBs,

pesticides, herbicides, and pH

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Oregon, Lucas County, Ohio

November 23, 2016 10

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• Sediment: TAL metals, SVOCs, VOCs, PCBs, pesticides, herbicides, and total organic carbon

(TOC)

• Solid Material: Asbestos analysis or target analyte list (TAL) metals.

Leachate Sampling

On May 25, 2016, leachate samples were collected at the middle of the screens from temporary

monitoring wells TW2 and TW5. Leachate samples were collected in laboratory-provided bottleware by

use of a peristaltic pump and 0.25-inch polyethylene tubing. Low-flow parameters were not measured for

the site’s leachate samples because typical landfill leachate is non-homogeneous. Sample identification

numbers and descriptions are as follows:

• GL-L-02-052516: Leachate sample collected within 5 to 15 feet bgs from TW2 on the

north-central portion of the site, south of the north pond, in an elevated area.

• GL-L-05-052516: Leachate sample collected within 6 to 11 feet bgs from TW5 on the

northeast portion of the site, southeast of the north pond in a low-lying area.

Sediment and Surface Water Sampling

Sediment samples were collected in accordance with Tetra Tech SOP No. 006-4, Sediment and Sludge

Sampling (Tetra Tech 2010). All sediment samples were collected with a dedicated metal spoon. Surface

water samples were collected into a dedicated polyethylene bottle and were then poured into the proper

laboratory-provided bottleware.

Sediment and surface water samples were collocated throughout the site. Two sets of sediment and

surface water samples were collected from the north pond, one sample set was collected from the south

pond, one sample set was collected northwest of Gradel Ditch, two sample sets were collected in Gradel

Ditch, and one sediment sample (seasonally saturated dry area) was collected within the easternmost

portion of Gradel Ditch.

Sample identification numbers and descriptions are as follows:

• GL-SD-01-052316, GL-SW-01-052316: Sediment and surface water samples collected

from the west portion of the north pond on May 23, 2016. Minimal vegetation surrounded

this sample location.

• GL-SD-02-052316, GL-SW-02-052316, GL-SD-02-052316-MS/MSD, GL-SW-02-

052316-MS/MSD: Sediment and surface water samples and matrix spike, matrix spike

duplicates (MS/MSD) were collected from the central portion of the south pond on May

23, 2016. Dense vegetation surrounded this sample location.

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November 23, 2016 11

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• GL-SD-03-052316, GL-SW-03-052316: Sediment and surface water samples were

collected from the east portion of the north pond on May 23, 2016. Dense vegetation

surrounded this sample location.

• GL-SD-04-052516, GL-SW-04-052516, GL-SD-04-052516-Dup, and GL-SW-04-

052516-Dup: Sediment and surface water samples and duplicate samples were collected

from the west portion of Gradel Ditch on May 25, 2016. Minimal vegetation surrounded

this sample location.

• GL-SD-05-052516, GL-SW-05-052516: Sediment and surface water samples were

collected from the west-central portion of Gradel Ditch on May 25, 2016. Dense

vegetation surrounded this sample location.

• GL-SD-06-052516, GL-SW-06-052516: Sediment and surface water samples were

collected from the central portion of Gradel Ditch on May 25, 2016. Dense vegetation

surrounded this sample location.

• GL-SD-07-052516: A sediment sample was collected from the east portion of Gradel

Ditch. This sample location was dry, so no surface water sample was collected on May

25, 2016. Minimal vegetation surrounded this sample location. This location is

considered the most “upstream” location along Gradel Ditch.

Solid Material Sampling

Soil boring B1 contained a layer of suspect asbestos material, followed by suspect slag material above the

cap layer. START collected samples of each of those materials per direction from the EPA OSC on May

24, 2016. Samples were placed in laboratory-provided, 8-ounce glass jars. Sample identification

numbers and descriptions are as follows:

• GL-S-B1-01-052516: Solid white powder collected from soil boring B1 within 0.5 to

1.0 foot bgs. Material was suspect asbestos observed above the cap.

• GL-S-B1-02-052516: Solid gray suspect slag material collected from soil boring B1

within 1.0 to 1.5 foot bgs. Material was analyzed for TAL metals and was observed above

the cap.

Each sample was collected in laboratory-provided bottleware. Samples were labeled appropriately,

placed in a cooler on ice, assigned to the chain-of-custody (COC) form, and packed for shipment to CT

Laboratories in Baraboo, Wisconsin, for analysis. One trip blank was submitted on May 23, 2016, and

another trip blank was submitted on May 25, 2016. Copies of COCs are in Appendix F.

CT Laboratories analyzed for TAL metals via EPA SW-846 Methods 6010/7470/7471, SVOCs via EPA

SW-846 Method 8270D, VOCs via EPA SW-846 Method 8260C, PCBs via EPA SW-846 Method

8082A, pesticides via EPA SW-846 Method 8081B, herbicides via EPA SW-846 Method 8151A, pH via

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EPA SW-846 Methods 9040C, TOC via the Lloyd Kahn method, and asbestos via California Air

Resources Board (CARB) Method 435 Levels A and B.

3.5 DEVIATIONS FROM THE SAMPLING AND ANALYSIS PLAN

Tetra Tech made every effort to perform site activities in accordance with the site-specific sampling and

analysis plan. Site conditions and directions from the EPA OSC in the field resulted in slight deviations

from the plan, including:

• Groundwater samples were not collected from off site monitoring wells because the EPA

OSC indicated that previous reports for adjoining properties contained sufficient

information for this site assessment.

• Sediment and surface water samples were not collected from the west adjoining wetland

beyond Otter Creek Road because pathways to ideal sampling locations were determined

to be unsafe, and previous investigations of the wetlands have been completed.

• Leachate samples were collected from temporary monitoring wells within the landfill

because no leachate seeps were observed. Leachate seeps may have been absent because

of the drought in the area at the time of the site assessment.

• An eleventh soil boring was advanced, beyond the 10 specified, because the EPA OSC

wanted one additional soil boring west of the north pond.

• Two solid samples were collected from soil boring B1, which were above cap material,

per direction from the EPA OSC.

• Water quality parameters of surface water and leachate were not measured, as these

parameters were deemed unnecessary for this site assessment.

• Water quality parameter convergence was not required in the field during leachate sample

collection because the typical landfill leachate is non-homogeneous.

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4.0 ANALYTICAL RESULTS

Tables 3 through 6 in Appendix B list detected analytical results from each sample collected during the

site assessment. A copy of the laboratory data report associated with the samples is included as

Attachment 1 to this report. The data validation report regarding results in the laboratory data report was

submitted to the EPA OSC on June 11, 2016 (Tetra Tech 2016d). Several qualifications were applied to

the analytical results, largely on the basis of matrix interferences. The data were accepted as qualified,

with the following exceptions: non-detect results of 3,3'-dichlorobenzidine in samples GL-SD-02-052316

and GL-SW-02-052316, and the non-detect result for caprolactam in sample GL-SD-02-052316 were

rejected based on deficiencies in one or more quality control criteria. Definitions of the data validation

qualifiers applied to the results are as follows:

J: The associated value is the approximate concentration of the analyte in the sample

J-: The associated value is the approximate concentration of the analyte in the sample

and may be biased low

J+: The associated value is the approximate concentration of the analyte in the sample

and may be biased high

Scribe software was used to manage all site assessment-related data, including sample collection data,

field data, and laboratory analytical data.

Analytical results for sediment and solid samples were compared with EPA Region 4 ESVs, EPA Region

5 ESLs, and EPA Region 4 Refinement Screening Values (RSVs). Analytical results for leachate and

surface water were compared with EPA Region 5 ESLs, EPA Region 4 Acute ESVs, Ohio EPA OMZA,

Ohio EPA Aquatic Life Short-Term Outside Mixing Zone Maximum (OMZM), and Ohio EPA Aquatic

Life Very Short-Term Inside Mixing Zone Maximum (IMZM).

For reference, the Ohio EPA Aquatic Life criteria listed from most stringent to least stringent are: Ohio

EPA OMZA, Ohio EPA OMZM, and Ohio EPA IMZM. The few exceptions to this order would include

select analytes for which Ohio EPA has not established criteria. It should also be noted that the Ohio

EPA IMZM is the least stringent criterion for water among the EPA and Ohio EPA criteria mentioned

above, for the analytes for which Ohio EPA IMZM criteria has been established.

4.1 LEACHATE RESULTS

A summary of leachate results is provided in Table 5 (metals) and Table 6 (other analyses) within

Appendix B.

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Metals:

GL-L-02-052516: Analytical results for leachate sample GL-L-02-052516 showed concentrations of

barium (312 µg/L) and lead (9.9 µg/L) above EPA Region 5 ESVs and Ohio EPA OMZAs. Selenium

was detected at 4.9 J µg/L, above the Ohio EPA OMZA of 4.6 µg/L. Cadmium was detected at 0.7 J

µg/L, above the EPA Region 5 ESL of 0.15 µg/L.

GL-L-05-052516: Analytical results for leachate sample GL-L-05-052516 indicated concentrations of

copper (62 µg/L), lead (467 µg/L), and zinc (780 µg/L) above all referenced EPA and Ohio EPA

regulatory levels. Concentrations of barium (1,260 µg/L), nickel (73.6 µg/L), and selenium (7.3 J µg/L)

were detected above EPA Region 5 ESLs and Ohio EPA OMZAs. Aluminum was detected at 5,910 J+

µg/L, above the EPA Region 4 ESV of 750 µg/L. In addition, chromium (47 µg/L) and mercury (0.32

µg/L) were detected in leachate above EPA Region 5 ESLs of 42 µg/L for chromium and 0.0013 µg/L for

mercury.

SVOCs: Analytical results for SVOCs in both leachate samples indicated concentrations of anthracene

up to 1.4 µg/L, above all referenced EPA and Ohio EPA regulatory levels. The remaining elevated

results were detected in leachate sample GL-L-05-052516. Fluoranthene was detected at 4.0 µg/L, above

the EPA Region 5 ESL, EPA Region 4 Acute ESV, Ohio EPA OMZA, and Ohio EPA OMZM. Bis(2-

ethylhexyl)phthalate was detected at 51 µg/L, above the Ohio EPA OMZA and EPA Region 4 Acute

ESV. Benzo(a)pyrene was detected in the leachate sample at 0.98 J µg/L, which exceeds EPA Region 5

ESL and EPA Region 4 Acute ESV. Results of the leachate sample show benzo(a)anthracene was

detected at 1.5 µg/L, above the EPA Region 5 ESL of 0.025 µg/L. Seventeen additional SVOCs were

detected between the two leachate samples, but at concentrations below any of the referenced EPA and

Ohio EPA regulatory levels.

VOCs: Analytical results for VOCs in leachate sample GL-L-02-052516 showed a chlorobenzene

concentration of 140 µg/L, above the EPA Region 5 ESL and Ohio EPA OMZA, both of which are 47

µg/L. Isopropylbenzene was detected at 6.5 µg/L in leachate sample GL-L-05-052516, above the Ohio

EPA OMZA of 4.8 µg/L. Eleven additional VOCs were detected in site leachate, but at concentrations

below any of the referenced EPA and Ohio EPA regulatory levels.

PCBs: Analytical results for PCBs in the leachate samples indicated concentrations of Aroclor-1242 (up

to 0.21 J µg/L) in both samples, and Aroclor-1254 (0.18 J µg/L) in sample GL-L-02-052316, above the

EPA Region 5 ESLs and Ohio EPA OMZAs. Total PCB concentrations ranged from 0.21 J µg/L to 0.36

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µg/L between the two leachate samples, which exceed the EPA Region 5 ESL of 0.00012 µg/L and the

Ohio EPA OMZA of 0.001 µg/L.

Pesticides: Results for pesticides in sample GL-L-02-052516 indicated a heptachlor concentration of

0.11 J µg/L, above the EPA Region 5 ESL of 0.0038 µg/L. No pesticides were detected in sample GL-L-

05-052516. No herbicides were detected in the leachate samples collected at the site.

The pH of the leachate samples ranged from 6.49 to 7.05 standard units (SU), which does not classify as

hazardous waste according to 40 CFR, Part 261. The pH of leachate sample GL-L-05-052516 was 6.49

SU, outside the EPA Acute ESV pH range of 6.5 to 9.0 SU.

4.2 SEDIMENT RESULTS

A summary of sediment results is provided in Table 3 (metals) and Table 4 (other analyses) within

Appendix B.

Metals: Analytical results indicated concentrations of barium across the majority of the samples, as high

as 117 J milligrams per kilogram (mg/kg), above both the EPA Region 4 ESV of 20 mg/kg, and the RSV

of 60 mg/kg. Concentrations of copper (up to 44 mg/kg), lead (up to 106 mg/kg), nickel (up to

34 mg/kg), and zinc (up to 207 mg/kg) were detected in site sediment above both the corresponding EPA

Region 4 ESVs and EPA Region 5 ESLs. The nickel results were observed in the majority of sediment

samples. Concentrations of iron (up to 24,200 J mg/kg) and manganese (up to 733 J mg/kg) in site

sediment exceeded the EPA Region 4 ESVs of 20,000 mg/kg for iron and 460 mg/kg for manganese.

SVOCs: Analytical results indicated levels of 2-methylnaphthalene (up to 0.073 J mg/kg), anthracene

(up to 0.121 J mg/kg), benzo(a)anthracene (up to 0.36 mg/kg), benzo(a)pyrene (up to 0.31 mg/kg),

benzo(g,h,i)perylene (0.22 mg/kg), chrysene (up to 0.441 mg/kg), dibenzo(a,h)anthracene (up to 0.085 J

mg/kg), fluoranthene (up to 0.71 mg/kg), phenanthrene (up to 0.41 mg/kg), and pyrene (up to 0.59

mg/kg), above the corresponding EPA Region 5 ESLs. Benzaldehyde (0.56 mg/kg), bis(2-

ethylhexyl)phthalate (up to 0.35 J mg/kg), and di-n-butylphthalate (up to 0.51 J mg/kg) were detected

above the EPA Region 4 ESVs. Sediment sample GL-SD-04-052516 had the only elevated results for

benzaldehyde. Six additional SVOCs were detected in site sediment samples, but at concentrations below

any of the referenced EPA and Ohio EPA regulatory levels.

VOCs: Acetone was detected up to 0.225 J mg/kg, which exceeds the EPA Region 4 ESV, EPA Region

5 ESL, and EPA Region 4 RSV. Tetrachloroethene was detected in sample GL-SD-052516, but at a

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concentration below any of the referenced regulatory levels. Methyl acetate was detected in all sediment

samples, but no regulatory levels have been established for that analyte.

PCBs: Arochlor-1248 (up to 0.081 J- mg/kg), Arochlor-1254 (up to 0.178 mg/kg), Arochlor-1260 (up to

0.072 mg/kg) and total PCBs (up to 0.36 mg/kg) were detected above the EPA Region 5 ESL of 0.0598

mg/kg.

Pesticides/Herbicides: 4,4-DDD (up to 0.115 J mg/kg), 4,4-DDE (up to 0.0276 J mg/kg), 4,4-DDT (up

to 0.0255 J mg/kg), and dieldrin (up to 0.0128 J mg/kg), were detected above the EPA Region 4 ESVs,

EPA Region 5 ESLs, and Region 4 RSVs. Lindane (up to 0.018 J mg/kg) and methoxychlor (0.0037 J

mg/kg) were detected above both the EPA Region 4 ESVs and RSVs. Sediment sample GL-SD-02-

052316 had the only detectible concentration of methoxychlor. Concentrations of alpha-BHC (up to

0.106 J mg/kg), and heptachlor (up to 0.0138 J mg/kg) exceeded the EPA Region 4 ESVs (0.0016 and

0.0019 mg/kg, respectively) and EPA Region 5 ESLs (0.006 and 0.0006 mg/kg, respectively). Three

additional pesticides were detected in site sediment samples, but at levels below any of the referenced

regulatory levels. No herbicides were detected in the site sediment samples.

4.3 SOLID MATERIAL RESULTS

A summary of metals results for suspect-slag sample GL-S-B1-01-052516 is provided in Table 3.

Asbestos: Asbestos was not detected in suspect asbestos-containing material sample

GL-S-B1-01-052516.

Metals: Analytical results indicated concentrations of cadmium (30 mg/kg) and zinc (1,570 mg/kg) in

the suspect slag sample GL-S-B1-01-052516 above EPA Region 4 ESVs, EPA Region 5 ESLs, and EPA

Region 4 RSVs.

4.4 SURFACE WATER RESULTS

A summary of surface water results is provided in Table 5 (metals) and Table 6 (other analyses) within

Appendix B.

Pond Surface Water

Surface water samples GL-SW-01-052316 and GL-SW-03-052316 were collected from the north pond,

and sample GL-SW-02-052316 was collected from the south pond. Surface water sample GL-SW-01-

052316 did not exceed any of the referenced EPA or Ohio EPA regulatory levels.

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Metals: Elevated results for metals were detected only in surface water sample GL-SW-02-052316.

Aluminum was detected in that surface water sample at 1,810 J- µg/L, above the EPA Region 4 Acute

ESV of 750 µg/L. Copper was detected in the surface water sample at 7.3 µg/L, above the EPA Region 5

ESL of 1.58 µg/L and the EPA Region 4 Acute ESV of 7 µg/L. Lead was detected at 6.3 J µg/L, above

the EPA Region 5 ESL of 1.17 µg/L and the Ohio EPA OMZA of 5.1 µg/L.

SVOCs: Concentrations of three SVOCs (bis(2-ethylhexyl)phthalate, di-n-butylphthalate, and pyrene)

were detected in surface water sample GL-SW-02-052316, but were below any of the referenced EPA and

Ohio EPA regulatory levels. No SVOCs were detected in samples GL-SW-01-052316 and GL-SW-03-

052316.

VOCs: No VOCs were detected in the pond surface water samples.

PCBs: No PCBs were detected in the pond surface water samples.

Pesticides/Herbicides: Heptachlor was detected at 0.0063 J µg/L in surface water sample GL-SW-03-

052316, above the EPA Region 5 ESL of 0.002 µg/L. Two additional pesticides (alpha BHC and delta

BHC) were detected, but at concentrations below the referenced EPA and Ohio EPA regulatory levels.

No herbicides were detected in the pond surface water samples.

The pH of the pond water samples ranged from 7.27 to 8.5 SU, which does not classify the pond water as

a hazardous waste according to 40 CFR 261.

Drainage Ditch Surface Water

Surface water samples GL-SW-04-052516, GL-SW-05-052516, and GL-SW-06-052516 were collected

from Gradel Ditch.

Metals: Metals results from surface water samples collected in Gradel Ditch indicated concentrations of

barium (up to 4,260 µg/L), copper (up to 298 µg/L), lead (up to 363 µg/L), vanadium (up to 347 µg/L),

and zinc (up to 2,150 µg/L), above each of all applicable EPA and Ohio EPA regulatory levels. Detected

concentrations of cobalt (up to 142 µg/L), and nickel (up to 393 µg/L) were above EPA Region 5 ESLs,

Ohio EPA OMZAs, and EPA Region 4 Acute ESVs. Cadmium was detected in sample GL-SW-04-

052516 and its duplicate at concentrations up to 5.2 J µg/L, above EPA Region 5 ESLs, EPA Region 4

Acute ESVs, Ohio EPA OMZA, and Ohio EPA OMZM. Detections of chromium (up to 361 µg/L) and

selenium (up to 13.2 µg/L) in surface water samples exceed EPA Region 5 ESLs and Ohio EPA OMZAs.

Aluminum (up to 204,000 J µg/L) and manganese concentrations (up to 7,830 J mg/kg) were above the

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EPA Region 4 ESVs of 750 aluminum and 1,680 µg/L manganese for all of Gradel Ditch sediment

samples. Levels of beryllium (8.0 µg/L) and mercury (up to 0.56 J- µg/L) in surface water were detected

above the EPA Region 5 ESLs of 4 µg/L beryllium and 0.0013 µg/L mercury.

SVOCs: The concentration of benzo(a)anthracene (0.21 J µg/L) in surface water sample GL-SW-04-

052516-Dup from Gradel Ditch exceeded EPA Region 5 ESL of 0.025 µg/L. Twelve SVOCs were

detected in surface water samples, but at levels below the referenced EPA and Ohio EPA regulatory

levels.

VOCs: Analytical results for VOCs in surface water sample GL-SW-05-052516 from Gradel Ditch

showed levels of isopropylbenzene of 14 µg/L, above the corresponding Ohio EPA OMZA of 4.8 µg/L.

Six other VOCs were detected in drainage ditch surface water samples, but at concentrations below the

referenced EPA and Ohio EPA regulatory levels.

PCBs: The detected Aroclor-1254 concentration of 0.31 J µg/L exceeded the EPA Region 5 ESL of

0.00012 µg/L and the Ohio EPA OMZA of 0.001 µg/L in water sample GL-SW-04-052516-Dup. No

other PCBs were detected in surface water samples from Gradel Ditch.

Pesticides: Detected concentrations of 4,4’-DDT (up to 0.064 J µg/L), dieldrin (up to 0.015 J µg/L), and

heptachlor (up to 0.065 µg/L) exceeded their EPA Region 5 ESLs in drainage ditch surface water

samples. Surface water samples GL-SW-04-052516 and GL-SW-04-052516-Dup consistently showed

the highest pesticide concentrations. Eight pesticides (4,4’-DDD, aldrin, alpha-BHC, benzaldehyde, delta

BHC, endrin keytone, gamma-chlordane, and lindane) were detected in surface water samples, but at

levels below any of the referenced EPA and Ohio EPA regulatory levels.

Herbicides: No herbicides were detected in surface water samples except dichloroprop, which was

detected in sample GL-SW-04-052516-Dup, but at a concentration below the referenced EPA and Ohio

EPA regulatory levels.

The pH of surface water samples from Gradel Ditch ranged from 7.17 to 7.45 SU, which does not classify

the drainage ditch water as a hazardous waste according to 40 CFR 261.

4.5 OFF SITE IMPACT EVALUATION

According to the City of Oregon’s drainage blueprints for the intersection of Otter Creek Road and Millard

Avenue from 1995, a sub-surface 12” diameter culvert routes surface water from Gradel Landfill directly into

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the west adjoining wetland (Appendix A, Figures 2 and 5). Any contaminated surface water flowing into

Gradel Ditch has a direct pathway flowing beneath Otter Creek Road, into the west adjoining wetland.

In 2008, Tetra Tech EM Inc. completed an ecological risk assessment for Duck and Otter Creeks for EPA. As

part of that assessment, numerous potential receptors were identified as possibly exposed to contaminated

sediments: benthic invertebrates, benthic-coupled fish, and piscivorous birds and mammals. Potential risks to

these populations were also assessed. The chemicals of concern (COCs) of benthic aquatic life listed for the

portion of Otter Creek nearest Gradel Landfill were arsenic, chromium, lead, zinc, and PAHs. Those sediment

contaminants were likely to have a severe effect on benthic aquatic life, as well as to present chronic risks to

the same. The COCs for bottom-dwelling fish were arsenic, barium, cadmium, chromium, lead, mercury, and

zinc. Chromium was listed as having the highest hazard quotient of the COCs. Lesion development in

bottom-dwelling fish was determined to be likely based on the COCs. Three out of four total stations

proximate to Gradel Landfill experienced bioassay percent survival less than that for the control bioassays

(Tetra Tech 2008). This site assessment for Gradel Landfill has identified ecological concerns posed by the

concentrations of barium, lead, and zinc in sediments, and from the concentrations of barium, cadmium,

chromium, lead, mercury, and zinc in surface water at the site (Appendix B, Tables 3 and 5). If Gradel

Landfill is contributing to the contamination found in Otter Creek sediments via groundwater, it would

exacerbate the ecological stresses identified in the ecological risk assessment completed by Tetra Tech EM

Inc.

A Data Gap Investigation Report was completed for the Duck and Otter Creek Industrial Partners by Cardno

Entrix in 2012. That investigation involved sampling and analysis of sediment from both Duck and Otter

Creeks. The data from that report show increases in lead (119 mg/kg), arsenic (21.6 mg/kg), and PCB

concentrations (0.053 mg/kg) in Otter Creek sediment from 2 to 4 feet bgs at the nearest three sampling points

downstream of Gradel Landfill. Each of those concentrations was below its probable effect concentrations

(PECs) (Cardno Entrix 2012). The lead in sediment reported in Otter Creek has also been identified as an

ecological concern in sediment (up to 106 mg/kg) and surface water (up to 363 µg/L) at Gradel Landfill during

this site assessment (see Appendix B, Tables 3 and 5). In addition, the concentrations of PCBs in sediment (up

to 0.36 mg/kg) and surface water (up to 0.36 J µg/L) collected at Gradel Landfill have been identified as

ecological concerns, implicating Gradel Landfill as a potential historical and current source of contamination

for Otter Creek (see Appendix B, Tables 4 and 6).

Weston Solutions, Inc. (Weston) prepared a Data Evaluation Report as part of the Duck and Otter Creeks

Confluence Sediment Investigation for EPA in 2012. Weston reported surface sediments at the confluence of

Otter Creek with concentrations of copper (up to 775 mg/kg), lead (up to 1,080 mg/kg), mercury (up to 1.8

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mg/kg), nickel (up to 66.9 mg/kg), bis(2-ethylhexyl)phthalate (up to 930 mg/kg), and PCBs (up to 0.869

mg/kg) above PECs (Weston 2012a). Similar ecological risks are identified during this site assessment for

Gradel Landfill, including elevated levels of copper (up to 44 mg/kg), lead (up to 106 mg/kg), mercury (up to

0.11 J- mg/kg), nickel (up to 34 mg/kg), bis(2-ethylhexyl)phthalate (up to 0.35 J mg/kg), and PCBs (up to

0.36 J mg/kg [total]) in site sediments; and elevated concentrations of chromium, copper, lead, mercury,

nickel, and PCB levels in surface water at Gradel Landfill (Appendix B, Tables 3, 4, 5, and 6).

In 2012, Weston submitted a technical memorandum to EPA for Otter Creek Confluence Data collected in

October 2011. The data presented in the memorandum show detections of anthracene between 0.052 and

0.088 mg/kg; benzo(a)pyrene between 0.064 to 0.34 mg/kg; bis(2-ethylhexyl)phthalate at 0.058 mg/kg; and

chrysene between 0.2 and 1.4 mg/kg in several surface sediment samples at the confluence of Otter Creek,

downstream of Gradel Landfill (Weston 2012b). This site assessment at Gradel Landfill has observed the

sediment contaminants listed above at Gradel Landfill at comparable concentrations: anthracene up to 0.121 J

mg/kg, benzo(a)pyrene up to 0.31 mg/kg, bis(2-ethylhexyl)phthalate up to 0.35 J mg/kg; and chrysene up to

0.441 mg/kg (See Appendix B, Table 4).

In 2015 and 2016, Envirosafe Services of Ohio, Inc. (ESOI) submitted reports to Ohio EPA as alternate source

demonstrations for the landfill adjoining Gradel Landfill to the south, referenced as “Envirosafe Landfill.”

Recent groundwater sampling events at a monitoring well on Envirosafe Landfill, nearest the shared boundary

with Gradel Landfill (SW-01), show steady increases in concentrations of 1,4-dioxane (up to 9,800 µg/L),

tetrahydrofuran (up to 32 µg/L), and dissolved barium (up to 300 µg/L). To provide context for those

concentration increases, in 2007, a leachate recovery system was installed on the central portion of the

applicable waste cell at Envirosafe Landfill. By 2008, the leachate recovery system at Envirosafe Landfill had

lowered leachate levels enough to allow groundwater to flow toward the center of the waste cell. In late 2011,

a leachate recovery well installed near SW-01 began operation. From early 2013 to early 2016, a drastic

increasing trend of dissolved barium became evident at the monitoring well nearest Gradel Landfill. The

ponds at Gradel Landfill were reported to be at least 5 feet higher than groundwater levels at SW-01, inducing

a large hydraulic gradient toward the Envirosafe Landfill. Barium concentrations at SW-01 increased faster

when the hydraulic gradient between Gradel Landfill and the Envirosafe Landfill became more pronounced

(ESOI 2015, 2016). That report’s findings are supported by the data from this site assessment for Gradel

Landfill. Concentrations of 1,4-dioxane (up to 570 J+ µg/L) in surface water and leachate and barium (up to

4,260 µg/L) in surface water were observed at Gradel Landfill (see Appendix B, Tables 5 and 6).

In 2016, GHD Services, Inc. (GHD) submitted a Semi-Annual Monitoring Report to EPA regarding the

adjoining property to the north, a landfill owned by Commercial Oil Services. Groundwater levels at Gradel

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 21

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

Landfill were reported approximately 8 feet higher than Envirosafe Landfill’s sustained leachate levels, thus

inducing groundwater at Gradel Landfill to flow off site to the north. The analytical data presented in that

report showed groundwater concentrations of iron (up to 960 µg/L) and manganese (up to 890 µg/L) at the

Commercial Oil Services Landfill were significantly greater at locations hydraulically downgradient from

Gradel Landfill compared with those at locations hydraulically upgradient from the same (GHD 2016).

Concentrations of iron (up to 533,000 µg/L) and manganese (up to 7,830 J µg/L) in leachate and surface water

at Gradel Landfill were detected as part of this site assessment (see Appendix B, Tables 5). In addition, high

groundwater elevations were confirmed at Gradel Landfill, likely driving contaminated groundwater off site to

the north.

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 22

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

5.0 THREATS TO HUMAN HEALTH AND THE ENVIRONMENT

Factors to be considered in assessing the appropriateness of a potential removal action at a site are

delineated in the NCP at 40 CFR 300.415(b)(2). Threat factors applicable to the site are summarized

below.

• Actual or potential exposure of nearby human populations, animals, or the food chain to

hazardous substances or pollutants or contaminants

The site is not secured and is highly accessible to the public; moreover, the site appears to be in

active use by animals. Surface water at the site was found to contain concentrations of metals

above Ohio EPA IMZMs; isopropyl benzene and PCBs above the Ohio EPA OMZA; as well as

benzo(a)anthracene, and pesticides at levels exceeding EPA Region 5 ESLs. Sediment at the site

was found to be contaminated by metals, acetone, and pesticides at concentrations above EPA

Region 5 ESLs, EPA Region 4 ESVs and RSVs; by SVOCs above EPA Region 5 ESLs and EPA

Region 4 ESVs; and by PCBs above Region 5 ESLs. The presence of a subsurface drainage

culvert was confirmed on the southwest portion of the site, which allows the uncontrolled release

of surface water from Gradel Ditch onto the adjacent wetland to the west. The wetlands drain

into Otter Creek, which eventually flows into Lake Erie. Animals and food chain species could be

affected by sediment and surface water at the site, in the west adjoining wetland, or in Otter

Creek from the off site migration of contaminants.

• Actual or potential contamination of Human Health supplies or sensitive ecosystems

The site is producing a substantial amount of leachate that has affected surface water at the

drainage ditch near the site’s south boundary. Site surface water was found to contain metals

above Ohio EPA IMZMs; isopropyl benzene and PCBs above the Ohio EPA OMZA; as well as

benzo(a)anthracene and pesticides at levels exceeding EPA Region 5 ESLs. Site sediment was

found to be contaminated by metals, acetone, and pesticides at concentrations above EPA Region

5 ESLs, EPA Region 4 ESVs and RSVs; by SVOCs at levels above EPA Region 5 ESLs and

EPA Region 4 ESVs; and by PCB concentrations above Region 5 ESLs. Site surface water and

sediment could put sensitive ecosystems at risk.

Site leachate was found to contain metals and SVOCs at concentrations that exceed the Ohio EPA

IMZM; chlorobenzene and PCB levels above EPA Region 5 ESLs and Ohio EPA OMZAs; one

isopropylbenzene detection above the Ohio EPA OMZA; and a heptachlor concentration that

exceeds the EPA Region 5 ESL. Reports regarding adjoining properties to the north and south

indicated groundwater flowing from Gradel Landfill toward those adjoining properties as a result

of the high leachate elevations at Gradel Landfill. Communication between site leachate and

groundwater was evident at Gradel Landfill during this site assessment, as well as the

uncontrolled release of surface water from Gradel Ditch onto the adjacent wetland to the west.

The wetlands drain into Otter Creek, which eventually flows into Lake Erie. Sensitive

ecosystems within the west adjoining wetlands and Otter Creek could be put at risk by

contaminants migrating from the site, as evidenced in previous investigations of the adjoining

wetland and Otter Creek.

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 23

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

• Weather conditions that may cause hazardous substances or pollutants or contaminants to

migrate or be released

Site leachate was found to contain metals and SVOCs at concentrations which exceed Ohio EPA

IMZM; chlorobenzene and PCB levels above EPA Region 5 ESLs and Ohio EPA OMZAs; one

isopropylbenzene detection above the Ohio EPA OMZA; and a heptachlor concentration that

exceeds the EPA Region 5 ESL. According to the USDC, the Toledo area experiences 37 inches

of precipitation per year. Weather conditions such as heavy rainfall, snow melt, and flooding will

raise pond water levels and increase leachate elevations on site, thus increasing production of

contaminated surface water on site, and by extension, surface water migrating off site onto the

landfill to the north and the wetland to the west. Such weather conditions would also accelerate

the lateral off site migration of leachate-impacted groundwater.

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 24

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

6.0 REMEDIAL ESTIMATES AND CONSIDERATIONS

The present pond water would need to be removed, drainage pathways and sufficient grading would need

to be provided for proper drainage of the excavations, and a layer of clay at least 2 feet thick would need

to be added across the surface of both excavations to address leachate production at the site. Estimates of

pond water present on site and required cap material are discussed below.

Approximately 806,000 gallons of water is present in the north pond, and approximately 4,083,000

gallons is present in the south pond. The estimated volume of water that will need to be removed from

both ponds, properly disposed of, or treated is 4,889,000 total gallons (Appendix B, Table 1).

The estimated surface area of the two easement excavations was 134,200 square feet. Assuming a

required addition of a 2-foot cap layer thickness, the excavations on the site would require approximately

13,400 cubic yards of in-place clay. Based on a bulking factor of 30 percent, the total required haul

volume of clay would be approximately 17,400 cubic yards (Appendix B, Table 2).

With its landfill operations dating back as far as 1969, Gradel Landfill is likely not properly equipped

with clay and synthetic liners at its base and a cap layer on top, which are now considered standard

requirements for modern landfills. Liners and cap layers serve as engineering controls to prevent landfill

leachate from contaminating groundwater. While it is not feasible to add liners at the end of the site’s

landfill operations, a leachate collection system is recommended to be installed at Gradel Landfill to

manage any leachate produced at the site. Such a system would prevent the uncontrolled release of

leachate, surface water, and groundwater onto adjoining properties.

After suitable cap material has been applied to the north and south easement areas, it is likely that

methane concentrations would build up in the subsurface because of the limited porous material to allow

methane ventilation. Methane is produced through the processing of organic fill by bacteria within an

oxygen-starved atmosphere. The new cap material will reduce the fresh air exchange in the vadose zone,

producing an oxygen-starved atmosphere and, therefore, more methane. Based on these effects, a passive

methane ventilation system is advised to be installed throughout Gradel Landfill to prevent an unsafe

build-up of methane in the subsurface.

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 25

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

7.0 CONCLUSIONS

Previous reports also provided evidence of leachate production at the Gradel Landfill, and its subsequent

release via surface water into the adjoining wetlands across Otter Creek Road to the west. Those

wetlands tie into Otter Creek and eventually Lake Erie. Drainage blueprints from the City of Oregon

confirm a direct drainage pathway allowing uncontrolled surface water from Gradel Ditch to be released

into the west adjoining wetland. In addition, the fence that spans the north boundary of Gradel Landfill

was submerged in 4 feet of water from the north pond, indicating that uncontrolled leachate production

from Gradel Landfill is being released off site to the Commercial Oil Services Landfill to the north.

Activities during this Gradel Landfill site assessment included collection of two solid samples, seven

sediment samples, six surface water samples (collocated with sediment samples), and two leachate

samples. Analytical results from those samples indicated that concentrations of metals, SVOCs, and

VOCs, PCBs, and heptachlor found in leachate; metals, benzo(a)anthracene, isopropylbenzene, PCBs,

and pesticides in surface water; and metals, SVOCs, acetone, PCBs, and pesticides in sediment samples

could pose an imminent and substantial ecological threat at the site, adjoining properties, and potentially

Otter Creek. A landfill cap assessment completed during this site assessment concluded that site soils

contained adequate cap material, except within the two power line easement excavations.

Previous reports for adjoining properties to the north and south provide evidence of elevated groundwater

levels at Gradel Landfill. This condition is causing uncontrolled off site migration of groundwater to the

north and south, and possibly in other directions, from Gradel Landfill. Evidence from the adjoining site

to the south, Envirosafe Landfill, indicates that Gradel Landfill is the likely contributor to recent barium

and 1,4-dioxane increases in groundwater reported there. Concentrations of barium and 1,4-dioxane were

detected in leachate and surface water samples at Gradel Landfill during this site assessment,

substantiating that claim. In addition, a report for the adjoining site to the north, Commercial Oil Services

Landfill, shows increased levels of iron and manganese in groundwater hydraulically downgradient from

Gradel Landfill. Reinforcing that report’s findings, high concentrations of iron and manganese were

detected in leachate and surface water from Gradel Landfill during this site assessment.

A Data Gap Investigation Report for Otter Creek completed in 2012 reported increases in lead, arsenic,

and PCB concentrations in Otter Creek sediment, from 2 to 4 feet bgs, at the nearest three sampling points

downstream of Gradel Landfill. Elevated levels of lead and PCBs were identified in sediment and surface

water during this site assessment at Gradel Landfill. In addition, two additional sediment investigations

of the confluence of Otter Creek were completed in 2012, which found levels of copper, lead, mercury,

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 26

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

nickel, anthracene, benzo(a)pyrene, bis(2-ethylhexyl)phthalate, chrysene, and PCBs in sediment. Each of

those constituents was also detected in sediment at Gradel Landfill during this site assessment.

To effectively address the excavations, the present pond water would need to be removed, drainage

pathways and sufficient grading would need to be provided for proper drainage of the excavations, and a

layer of clay at least 2 feet thick would need to be added across the surface of both excavations to address

leachate production at the site. The estimated volume of water that will need to be removed from both

ponds, properly disposed of, or treated is approximately 4,889,000 gallons. An estimated 17,400 cubic

yards of hauled clay material would be required to provide a sufficient landfill cap for both excavations.

It is also recommended to install a leachate collection system to prevent off site migration of

contaminated leachate, in addition to a passive methane ventilation system to prevent methane build-up in

the subsurface.

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 27

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

REFERENCES

Bennett & Williams, Inc. 1989. Sampling and Analysis Plan for the Millard Avenue Improvement

Project. July.

Bing. 2013. Hybrid Map of Oregon, Ohio. March. www.bing.com/mapspreview

Cardno Entrix. 2012. Duck and Otter Creeks Great Lakes Legacy Act Data Gap Investigation Report.

April.

Envirosafe Services of Ohio, Inc. (ESOI). 2000. Description of Current Conditions (DOCC) for Otter

Creek Road Facility Envirosafe Services of Ohio, Inc. June.

ESOI. 2015. Alternate Source Demonstration. December.

ESOI. 2016. Alternate Source Demonstration. February.

FirstEnergy Corporation. 2013. Construction Completion Report – Former Gradel Landfill. January.

GHD Services, Inc. (GHD). 2016. Semi-Annual Monitoring Report Regarding Gradel Landfill. June.

Midwest Environmental Consultants. 1997. Draft Final RCRA Facility Investigation Report for the

Northern Sanitary Landfill Area.

Ohio Environmental Protection Agency (Ohio EPA). 1990. Preliminary Assessment of Gradel Landfill.

June.

Ohio EPA. 2014. Phase I Environmental Site Assessment of Gradel Landfill. September.

Ohio EPA. 2015. Removal Action Referral to EPA Regarding Gradel Landfill. December.

PRC Environmental Management, Inc. (PRC). 1993. Screening Site Inspection – Gradel Landfill.

February 6.

Tetra Tech EM Inc. 2008. Screening and Baseline Ecological Risk Assessment for Duck and Otter

Creeks. December.

Tetra Tech EM Inc. 2009. General Equipment Decontamination. June.

Tetra Tech EM Inc. 2010. Sediment and Sludge Sampling. May.

Tetra Tech, Inc. (Tetra Tech). 2014. Recording Notes in Field Logbooks. November.

Tetra Tech. 2016a. Health and Safety Plan – Gradel Landfill. April.

Tetra Tech. 2016b. Quality Assurance Project Plan (QAPP) for Superfund Technical Assessment and

Response Team (START). Revision 3. June.

Tetra Tech. 2016c. Sampling and Analysis Plan – Gradel Landfill. April.

Tetra Tech. 2016d. Data Validation Report – Gradel Landfill Site. June.

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Gradel Landfill Site Assessment

Oregon, Lucas County, Ohio

November 23, 2016 28

Tetra Tech, Inc.

TDD No.: S05-0001-1601-001

U.S. Department of Commerce (USDC). 1982. Monthly Normals of Temperature, Precipitation, and

Heating and Cooling Degree Days 1951 – 1980, Ohio. September.

U.S. Geologic Survey (USGS). 1980. 7.5- Minute Topographic Quadrangle Map of Oregon, Ohio.

Weston Solutions, Inc. (Weston). 2012a. Data Evaluation Report for Duck and Otter Creeks Confluence

Sediment Investigation. February.

Weston. 2012b. Technical Memorandum for October 2011 Otter Creek Confluence Data. February.

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APPENDIX A

FIGURES

(1) Site Location Map

(2) Site Layout Map

(3) Boring/Sampling Location Map

(4) Cap Thickness Assessment

(5) Gradel Ditch Off Site Drainage Pathway

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±Fil

e Path

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Gradel Landfill1100 Otter Creek Road

Oregon, Lucas County, OhioFigure 1

Site Location Map

Prepared For: EPA Prepared By: Tetra Tech, Inc.EPA Contract No.: EP-S5-13-01 TDD No.: S05-0001-1601-001

2,000 0 2,000

Feet

Source: USGS 7.5-Minute Topographic Quadrangle MapOregon, OH 1980

Coordinate System: WGS 1984 Web Mercator Auxiliary Sphere Projection: Mercator Auxiliary Sphere Datum:WGS 1984 Units: Meter

SiteLocation

Reference Map LegendApproximate Site Boundary

Site Location

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Gradel Landfill1100 Otter Creek Road

Oregon, Lucas County, Ohio

Figure 2Site Layout Map

Prepared For: EPA Prepared By: Tetra Tech Inc.Date Saved: 11/21/2016

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±100 0 100

Feet

Reference MapSite

Location

Coordinate System: GCS WGS 1984Datum: WGS 1984

Units: Degree

Legend[ Fence

Overhead High-Tension Power Line South Drainage Ditch

2 Drainage PathwayApproximate Site Boundary

Toledo Edison

BP Husky Petroleum Refinery

Commercial Oil Services Landfill

Commercial OIlService Field

FarmlandEnvirosafe Landfill

Wetland

South Pond

North Pond

EnvirosafeLandfill

Farmland

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Gradel Landfill1100 Otter Creek Road

Oregon, Lucas County, Ohio

Figure 3Boring/Sampling Location Map

Prepared For: EPA Prepared By: Tetra Tech Inc.Date Saved: 6/7/2016

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ath: G

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±100 0 100

Feet

Reference MapSite

Location

Coordinate System: GCS WGS 1984Datum: WGS 1984

Units: Degree

LegendBoring LocationSediment Sampling Location

&>Sediment Surface Water Sampling Location&<Monitoring Well Location

Approximate Site Boundary

Toledo Edison

BP Husky Petroleum Refinery

Commercial Oil Services Landfill

Commercial OIlService Field

FarmlandEnvirosafe Landfill

Wetland

South Pond

North Pond

EnvirosafeLandfill

Farmland

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Gradel Landfill1100 Otter Creek Road

Oregon, Lucas County, Ohio

Figure 4Cap Thickness Assessment

Prepared For: EPA Prepared By: Tetra Tech Inc.Date Saved: 7/13/2016

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±100 0 100

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Reference MapSite

Location

Coordinate System: GCS WGS 1984Datum: WGS 1984

Units: Degree

LegendBoring Location

&<Temporary Monitoring Well LocationApproximate Site Boundary

Toledo Edison

BP Husky Petroleum Refinery

Commercial Oil Services Landfill

Commercial OIlService Field

FarmlandEnvirosafe Landfill

Wetland

South Pond

North Pond

EnvirosafeLandfill

Farmland

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Gradel Landfill1100 Otter Creek Road

Oregon, Lucas County, OhioFigure 5

Gradel Ditch Off SiteDrainage Pathway

Prepared For: EPA Prepared By: Tetra Tech Inc.Date Saved: 11/21/2016

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Reference MapSite

Location

Coordinate System: GCS WGS 1984Datum: WGS 1984

Units: Degree

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APPENDIX B

TABLES

(1) Pond Water Estimate

(2) Required Cap Estimate

(3) Sediment and Solid Samples – Metals Analytical Results Summary

(4) Sediment and Solid Samples – VOCs, SVOCs, PCBs, Pesticides, and

Herbicides Analytical Results Summary

(5) Leachate and Surface Water Samples – Metals Analytical Results Summary

(6) Leachate and Surface Water Samples – VOCs, SVOCs, PCBs, Pesticides,

and Herbicides Analytical Results Summary

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Table 1

Pond Water Estimate

Oregon, Lucas County, Ohio

E, F

C, D Φ

Parameter North Excavation South Excavation

Total Pond

Water

(gallons)

A - Avg Water Depth 4 8

Φ - Excavation Wall Slope (degrees) 35 45

B - Lateral Length of Wetted Sloped Walls = A / tan Φ 5.71 8

C - Avg Length of Excavation Floor 453 570

D - Avg Width of Excavation Floor 53 110

E - Length of Water Table 464.43 586

F - Width of Water Table 64.43 126

Estimated Pond Water Volume (gallons)

= (A/6)*(EF+[D+F]*[C+E]+CD) 806,192 4,082,877 4,889,069

Notes:

Units in feet, unless otherwise specified

Assumptions:

North Pond's average water depth is 4 feet

South Pond's average water depth is 8 feet

A

B

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Table 2

Required Cap Estimate

Oregon, Lucas County, Ohio

D, E

C

A

F, G Φ

B

Parameter North ExcavationSouth

ExcavationTotal

Avg Depth to Water 5 7

Avg Water Depth 4 8

A - Avg Excavation Depth 9 15

Φ - Excavation Wall Slope (degrees) 35 45

B - Lateral Length of Sloped Walls = A / cos Φ 11 15

C - Length of Excavation Walls = A / sin Φ 15.7 21.2

D - Avg Length of Pond 475 600

E - Avg Width of Pond 75 140

F - Avg Length of Excavation Floor = D - 2B 453 570

G - Avg Width of Excavation Floor = E- 2B 53 110

Effective length = F+2C 484 612

Effective Width = G+2C 84 152

Estimated Surface Area (sq. feet) 40,883 93,330 134,213

Estimated In-Place Volume (cubic yards) 3,028 10,370 13,398

Estimated Haul Volume (cubic yards) 3,937 13,481 17,418

Notes:

Units in feet, unless otherwise specified

Assumptions:

Cap thickness = 3 feet

Bulking factor = 30 percent

1 of 1

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Table 3

Sediment and Solid Samples: Metals Analytical Results Summary

Oregon, Lucas County, Ohio

Sample ID:

Date Collected

Aluminum 58,000 NC 25,000 19 8,820 J 5,780 J 8,880 J 9,530 J 9,530 J 12,400 J 9,680 J 9,610 J

Antimony 25 NC 2 ND ND 0.2 J- 0.5 J- 1.0 J- 0.6 J- 0.5 J- 0.4 J- 0.3 J-

Arsenic 33 9.8 9.8 ND 6.6 4.4 5.0 6.4 7.2 6.7 6.3 6.2

Barium 60 NC 20 7.0 74 J+ 37 J+ 70 J+ 117 J 91 J 99 J 75 J 76 J

Beryllium NC NC NC 0.007 J 0.2 0.1 0.2 0.3 0.3 0.4 0.3 0.3

Cadmium 5 1.0 1 30 0.5 0.2 0.4 0.4 J 0.6 J 0.3 0.1 0.4

Calcium NC NC NC 1,330 80,800 J- 45,200 J- 51,600 J- 42,700 J 44,300 J 41,500 J 46,500 J 69,000 J

Chromium 111 43 43.4 0.8 16 11 15 19 J 24 J 23 J 17 J 17 J

Cobalt NC 50 50 0.08 J 8.9 6.7 9.1 9.30 9.7 11 9.6 10.0

Copper 149 32 32 1.1 25 J+ 20 J+ 24 J+ 32 44 33 22 24

Iron 40,000 NC 20,000 348 16,800 J 12,500 J 16,200 J 19,500 J 22,800 J 24,200 J 19,600 J 19,300 J

Lead 128 36 35.8 0.3 J 34 29 J+ 29 38 75 106 21 27

Magnesium NC NC NC 105 16,900 J 11,600 J 14,300 J 15,400 J 16,600 J 15,000 J 17,100 J 17,300 J

Manganese 1100 NC 460 30 404 J 367 J 354 J 427 J 370 J 733 J 682 J 514 J

Mercury 1.1 0.2 0.18 0.005 J 0.05 0.05 0.05 0.11 J- 0.06 0.07 J- 0.03 J- 0.03 J-

Nickel 48.6 23 23 0.6 25 18 23.4 27 33 34 25 26

Potassium NC NC NC 21 J 1,320 1,160 1,460 2,120 2,040 J 2,370 1,660 1,690

Selenium 20 NC 11 1.4 0.3 J 0.8 J 1.6 0.7 J 0.4 J 0.9 J 0.7 J 0.2 J

Sodium NC NC NC 10 J 130 165 116 520 499 416 215 137

Vanadium NC NC NC 0.7 20 J 14 J 20 J 22 J 23 J 28 J 22 J 21 J

Zinc 459 121 121 1,570 100 J- 88 J- 99 J- ND 159 207 132 113

Notes:

All values presented in milligrams per kilogram (mg/kg)

Boldface Value represents an exceedance of EPA Region 4 Refinement Screening Value

Value represents an exceedance of EPA Region 5 Ecological Screening Level

Value represents an exceedance of EPA Region 4 Ecological Screening Value

ESL Ecological Screening Level

ESV Ecological Screening Value

EPA U.S. Environmental Protection Agency

J The associated value is the approximate concentration of the analyte in the sample.

J- The associated value is the approximate concentration of the analyte in the sample and may be biased low.

J+ The associated value is the approximate concentration of the analyte in the sample and may be biased high.

NC No criteria established

ND Non-detect

RSV Refinement Screening Value

GL-SD-02-

052316

GL-SD-03-

052316

GL-SD-04-

052516EPA

Region 5

ESL

EPA

Region 4

ESV

GL-SD-01-

052316EPA

Region 4

RSV

GL-SD-04-

052516-Dup

05/25/16 05/25/16

Analyte

GL-SD-05-

052516

GL-SD-06-

052516

GL-SD-07-

052516

05/24/16 05/23/16 05/23/16 05/23/16 05/25/16 05/25/16 05/25/16

GL-S-B1-02-

052516

1 of 1

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Table 4

Sediment and Solid Samples:

VOCs, SVOCs, PCBs, Pesticides and Herbicides Analytical Results Summary

Oregon, Lucas County, Ohio

Sample ID:

Date Collected:

PCBs

Aroclor-1248 NC 0.0598 NC 0.065 0.051 J 0.042 J 0.086 J 0.088 J- 0.110 0.082 0.180

Aroclor-1254 NC 0.0598 NC 0.067 0.073 0.065 0.143 0.140 0.178 0.080 0.061

Aroclor-1260 NC 0.0598 NC 0.024 J 0.026 J 0.023 J 0.061 0.059 0.072 0.038 J 0.022 J

Total NC 0.0598 NC 0.156 0.150 J 0.130 J 0.289 0.287 0.360 0.200 J 0.263

Pesticides/Herbicides

4,4'-DDD 0.0078 0.005 0.0012 0.0149 J 0.0044 0.0294 J 0.0583 J 0.0207 J 0.1150 J 0.0523 J ND

4,4'-DDE 0.0037 0.003 0.00207 0.0075 J 0.0048 J 0.0040 J 0.0177 J 0.0173 J 0.0276 J 0.0192 J 0.0125 J

4,4'-DDT 0.0048 0.004 0.0012 0.0079 J 0.005 0.00287 J 0.0159 J 0.0173 J 0.0255 J ND ND

alpha-BHC 6.7 0.006 0.0016 0.031 J ND 0.042 J ND ND 0.106 J ND ND

beta-BHC 1.6 0.5 0.33 ND 0.008 J ND ND ND ND ND ND

delta-BHC NC 7.00 NC 0.006 J 0.003 J 0.005 J ND 0.022 J ND 0.023 J 0.015 J

Dieldrin 0.0093 0.002 0.0019 0.0023 J 0.0062 J ND 0.0124 J ND 0.0128 J 0.0105 J 0.0084 J

Heptachlor 0.59 0.0006 0.0019 0.0056 J ND ND ND 0.0138 J ND 0.0105 J 0.0070 J

Heptachlor epoxide 0.016 0.002 0.0025 ND 0.0011 J ND ND ND ND ND ND

Lindane 0.00499 NC 0.00237 0.0022 J ND ND 0.018 J 0.010 J ND 0.012 J ND

Methoxychlor 1.78 0.014 0.0024 ND 0.0037 J ND ND ND ND ND ND

SVOCs

2-Methylnaphthalene 0.45 0.02 NC 0.052 J ND 0.050 J 0.068 J 0.073 J ND ND ND

Anthracene 0.59 0.06 NC ND ND ND 0.121 J 0.088 J 0.059 J ND ND

Benzaldehyde NC NC 0.46 0.07 J ND 0.09 J 0.56 0.42 0.18 J 0.14 J ND

Benzo(a)anthracene 0.841 0.1 NC 0.14 J 0.12 J 0.065 J 0.36 0.30 0.31 0.068 J 0.073 J

Benzo(a)pyrene 0.965 0.2 NC 0.124 J 0.102 J 0.055 J 0.31 0.26 0.26 0.059 J 0.066 J

Benzo(b)fluoranthene 0.979 1.0 NC 0.22 J 0.18 J 0.11 J 0.52 0.43 0.37 0.10 J 0.11 J

Benzo(g,h,i)perylene 1.095 0.2 NC 0.11 J 0.095 J 0.08 J 0.22 0.19 J 0.19 J 0.06 J 0.06 J

Benzo(k)fluoranthene 0.981 0.2 NC 0.059 J ND ND 0.16 J 0.10 J 0.14 J ND ND

Bis(2-ethylhexyl)phthalate 2.647 NC 0.182 0.17 J 0.22 J 0.28 J 0.26 J 0.35 J 0.25 J 0.20 J 0.16 J

Butylbenzylphthalate 1.28 2.0 0.592 ND ND ND 0.14 J 0.45 J ND ND 0.21 J

Carbazole 1.1 NC 0.9 ND ND ND 0.053 J ND ND ND ND

Chrysene 0.844 0.2 NC 0.237 0.186 J 0.164 J 0.441 0.363 0.344 0.115 J 0.136 J

Dibenzo(a,h)anthracene 1.123 0.03 NC ND ND ND 0.085 J 0.064 J 0.076 J ND ND

Di-n-butylphthalate 1.0 NC 0.22 0.15 J 0.14 J 0.23 J 0.43 J 0.51 J ND ND 0.12 J

GL-SD-04-

052516

05/25/16

EPA

Region 5

ESL

Analyte

GL-SD-01-

052316

05/23/16

EPA

Region 4

RSV

EPA

Region 4

ESV

GL-SD-02-

052316

05/23/16

GL-SD-03-

052316

05/23/16

GL-SD-07-

052516

05/25/16

GL-SD-04-

052516-Dup

05/25/16

GL-SD-05-

052516

05/25/16

GL-SD-06-

052516

05/25/16

1 of 2

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Table 4

Sediment and Solid Samples:

VOCs, SVOCs, PCBs, Pesticides and Herbicides Analytical Results Summary

Oregon, Lucas County, Ohio

Sample ID:

Date Collected:

GL-SD-04-

052516

05/25/16

EPA

Region 5

ESL

Analyte

GL-SD-01-

052316

05/23/16

EPA

Region 4

RSV

EPA

Region 4

ESV

GL-SD-02-

052316

05/23/16

GL-SD-03-

052316

05/23/16

GL-SD-07-

052516

05/25/16

GL-SD-04-

052516-Dup

05/25/16

GL-SD-05-

052516

05/25/16

GL-SD-06-

052516

05/25/16

Fluoranthene 0.707 0.40 NC 0.24 0.21 J 0.11 J 0.71 0.58 0.56 0.12 J 0.14 J

Indeno(1,2,3-cd)pyrene 1.115 0.2 NC 0.09 J 0.07 J 0.05 J 0.17 J 0.16 J 0.14 J ND ND

Naphthalene 0.385 0.20 NC ND ND ND 0.06 J 0.06 J 0.05 J ND ND

Phenanthrene 0.596 0.2 NC 0.14 J 0.14 J 0.10 J 0.41 0.32 0.23 J 0.09 J 0.10 J

Pyrene 0.697 0.2 NC 0.22 0.194 J 0.111 0.59 0.49 0.48 0.112 J 0.129 J

VOCs

Acetone 0.04 0.01 0.04 0.056 J ND 0.225 J 0.075 J 0.086 J- 0.085 J 0.066 J 0.052 J

Methyl acetate NC NC NC 0.19 0.32 J+ 0.79 0.32 0.25 0.47 0.47 0.18

Tetrachloroethene 0.37 1.00 0.05 ND ND ND ND ND ND ND 0.0057 J

Total Organic Carbon NC NC NC 28,800 36,100 41,200 50,400 57,600 63,700 46,200 39,000

Notes:

All values presented in milligrams per kilogram (mg/kg)

Boldface Value represents an exceedance of EPA Region 4 Refinement Screening Value

Value represents an exceedance of EPA Region 5 Ecological Screening Level

Value represents an exceedance of EPA Region 4 Ecological Screening Value

BHC Benzene hexachloride

DDD Dichlorodiphenyldichloroethane

DDE Dichlorodiphenyldichloroethene

DDT Dichlorodiphenyltrichloroethane

EPA U.S. Environmental Protection Agency

ESL Ecological Screening Level

ESV Ecological Screening Value

J The associated value is the approximate concentration of the analyte in the sample

J- The associated value is the approximate concentration of the analyte in the sample and may be biased low

J+ The associated value is the approximate concentration of the analyte in the sample and may be biased high

NC No criteria established

ND Non-detect

PCBs Polychlorinated Biphenyls

RSV Refinement Screening Value

SVOCs Semivolatile Organic Compounds

VOS Volatile Organic Compounds

2 of 2

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Table 5

Leachate and Surface Water Samples: Metals Analytical Results Summary

Oregon, Lucas County, Ohio

Sample ID:

Date Collected:

Aluminum NC NC NC 750 NC 100 J+ 5,910 J+ ND 1,810 J- 20 J- 8,480 J 24,600 J 204,000 J 3,760

Antimony 1,800 900 190 900 80 ND 4.2 J ND ND ND ND ND ND ND

Arsenic 680 340 150 340 148 4.1 J 10.6 J ND ND ND 4.5 J 14.0 J 111 J 5.9 J

Barium 4,000 2,000 220 2,000 220 312 1,260 71 J+ 146 J+ 59 J+ 452 722 4,260 237

Beryllium 190 93 11 93 4 ND ND ND ND ND 0.39 J 1.0 8.0 ND

Cadmium 9 4.5 2.5 1.03 0.15 0.7 J ND ND ND ND 2.8 J 5.2 J ND ND

Calcium NC NC NC NC NC 297,000 J 181,000 J 74,200 J 83,600 J 56,400 J 312,000 497,000 400,000 J 224,000

Chromium 1,100 570 74 NC 42 4.0 47 ND J 3.4 ND 18 J 46 J 361 6.7

Cobalt 440 220 24 120 24 2 J 10 ND 2.3 J ND 15 J 32 J 142 5.7

Copper 27 13 9 7 1.58 ND 62 ND 7.3 ND 80 J 164 J 298 9.0

Iron NC NC NC NC NC 4,640 J- 89,900 J- 257 J- 3,440 J- 415 J- 14,100 J 42,500 J 533,000 13,400

Lead 190 97 5.1 30.1 1.17 9.9 467 ND 6.3 J ND 60 J 127 J 363 2.8 J

Magnesium NC NC NC NC NC 193,000 J 117,000 J 27,600 J 46,300 J 27,500 J 116,000 154,000 230,000 J 99,100

Manganese NC NC NC 1,680 NC 249 J 432 J 119 J 230 J 427 J 4,650 J 7,830 J 5,110 J 2,040

Mercury 2.9 1.4 0.77 1.4 0.0013 ND 0.32 ND ND ND ND 0.067 J- 0.56 J- ND

Nickel 940 470 52 260 28.9 5.3 J 73.6 1.2 J 7.6 1.4 J 59 J 110 J 393 16.8

Potassium NC NC NC NC NC 47,300 69,700 6,730 26,900 6,220 62,800 72,600 144,000 45,300

Selenium NC NC 4.6 20 5 4.9 J 7.3 J ND ND ND 8.3 J 13.2 5.2 J 5.1 J

Sodium NC NC NC NC NC 62,400 172,000 4,690 47,000 4,590 362,000 254,000 250,000 165,000

Vanadium 300 150 44 79 12 ND 5.5 ND 4.2 J ND 21 J 59.5 J 347 9.0

Zinc 240 120 120 66 66 71 780 ND 33 11 J+ 465 J 996 J 2,150 33.0

Notes:

All values presented in micrograms per liter (µg/L)

Italics Value represents an exceedance of OEPA Aquatic Life Very Short Term IMZM

Value represents an exceedance of OEPA Aquatic Life Short Term OMZM and OEPA Aquatic Life Chronic OMZA

Value represents an exceedance of OEPA Aquatic Life Chronic OMZA

Boldface Value represents an exceedance of EPA Region 4 Acute Ecological Screening Value

Value represents an exceedance of EPA Region 5 Ecological Screening Level

EPA U.S. Environmental Protection Agency

ESL Ecological Screening Level

ESV Ecological Screening Value

IMZM Inside Mixing Zone Maximum

J The associated value is the approximate concentration of the analyte in the sample

J- The associated value is the approximate concentration of the analyte in the sample and may be biased low

J+ The associated value is the approximate concentration of the analyte in the sample and may be biased high

NC No criteria established

ND Non-detect

OEPA Ohio Environmental Protection Agency

OMZA Outside Mixing Zone Average

OMZM Outside Mixing Zone Maximum

Analyte

GL-L-02-

052516

GL-L-05-

052516

05/25/16 05/25/16

EPA

Region 4

Acute ESV

OEPA

Aquatic

Life

OMZM

(short

term)

OEPA

Aquatic

Life IMZM

(very short

term) 05/23/16

GL-SW-01-

052316EPA

Region 5

ESL

OEPA

Aquatic Life

OMZA

(chronic)

GL-SW-03-

052316

05/23/16

GL-SW-02-

052316

05/23/16

GL-SW-06-

052516

05/25/16

GL-SW-04-

052516

05/25/16

GL-SW-04-

052516-

Dup

GL-SW-05-

052516

05/25/16 05/25/16

1 of 1

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Table 6

Leachate and Surface Water Samples:

VOCs, SVOCs, PCBs, Pesticides and Herbicides Analytical Results Summary

Oregon, Lucas County, Ohio

Sample ID:

Date Collected:

PCBs

Aroclor-1242 NC NC 0.001 NC 0.00012 0.18 J 0.21 J ND ND ND ND ND ND ND

Aroclor-1254 NC NC 0.001 NC 0.00012 0.18 J ND ND ND ND ND 0.31 J ND ND

Total NC NC 1.001 NC 1.00012 0.36 J 0.21 J ND ND ND ND 0.31 J ND ND

Pesticides/Herbicides

4,4'-DDD NC NC NC 0.19 NC ND ND ND ND ND ND 0.068 J ND ND

4,4'-DDT NC NC NC 1.1 0.000011 ND ND ND ND ND 0.014 J 0.064 J ND 0.015 J

Aldrin NC NC NC 3 170 ND ND ND ND ND 0.012 J 0.0093 J 0.0080 J ND

alpha-BHC NC NC NC NC 12.4 ND ND ND 0.0092 J 0.0063 J 0.016 J 0.026 J 0.019 J 0.010 J

delta-BHC NC NC NC NC 667 ND ND 0.0089 J ND 0.011 J ND ND ND 0.0061 J

Dichloroprop NC NC NC NC NC ND ND ND ND ND ND 1.45 J- ND ND

Dieldrin 0.47 0.24 0.056 0.24 0.000071 ND ND ND ND ND 0.0089 J 0.015 J ND 0.0081 J

Endrin ketone NC NC NC NC NC ND ND ND ND ND ND ND ND 0.0071 J

gamma-Chlordane NC NC NC 2.4 NC ND ND ND ND ND ND ND 0.014 J 0.0071 J

Heptachlor NC NC NC 0.52 0.0038 0.11 J ND ND ND 0.0063 J ND 0.065 ND 0.0091 J

Lindane 1.9 0.95 0.057 0.95 0.026 ND ND ND ND ND ND ND 0.0080 J ND

SVOCs

2-Methylnaphthalene NC NC NC 42 330* 0.36 J 6.5 ND ND ND ND ND 0.23 J- ND

Acetophenone NC NC NC NC NC 2.2 2.6 ND ND ND ND 0.53 J ND ND

Anthracene 0.35 0.18 0.02 0.18 0.035 0.38 J 1.4 ND ND ND ND ND ND ND

Benzaldehyde NC NC NC 547 NC ND 1.0 J ND ND ND 0.89 J 4.8 J ND ND

Benzo(a)anthracene ID ID ID 42 0.025 ND 1.5 ND ND ND ND 0.21 J ND ND

Benzo(a)pyrene ID ID ID 0.54 0.01 ND 0.98 J ND ND ND ND ND ND ND

Benzo(b)fluoranthene ID ID ID 23 9.07 ND 1.2 ND ND ND ND 0.38 J ND ND

Benzo(g,h,i)perylene ID ID ID 6 7.64 ND 0.67 J ND ND ND ND ND ND ND

Benzo(k)fluoranthene ID ID ID 2 NC ND ND ND ND ND ND 0.32 J ND ND

Bis(2-ethylhexyl)phthalate 2,100 1,100 8 27 NC 3.0 51 ND 0.8 J ND 1.0 J 0.89 J 1.1 J- ND

Carbazole NC NC NC NC NC 2.6 1.6 ND ND ND ND ND ND ND

Chrysene ID ID ID 42 NC ND 2.4 ND ND ND 0.46 J ND ND ND

Dibenzo(a,h)anthracene ID ID ID 6 NC ND 0.20 J ND ND ND ND ND ND ND

Dibenzofuran 71 36 4 36 4 1.1 1.7 ND ND ND ND ND ND ND

Di-n-butylphthalate NC NC NC 34 9.7 ND 2.0 J ND 1.3 J ND 1.8 J 1.3 1.2 J- ND

Di-n-octylphthalate NC NC NC NC 30 ND ND ND ND ND ND 2.9 ND ND

Fluoranthene 7.4 3.7 0.8 3.7 1.9 0.28 J 4.0 ND ND ND ND ND ND ND

Fluorene 220 110 19 110 19 1.5 2.8 ND ND ND ND ND ND ND

Indeno(1,2,3-cd)pyrene ID ID ID 6.0 4.3 ND 0.34 J ND ND ND ND ND ND ND

Naphthalene 340 170 21 170 13 1.7 12 ND ND ND ND ND 4.2 J- ND

N-Nitrosodiphenylamine & Diphn NC NC NC 220 NC 0.94 J 6.5 ND ND ND ND ND ND ND

Phenanthrene 61 31 2.3 31.0 3.6 0.70 J ND ND ND ND ND 0.41 J ND ND

Pyrene 83 42 4.6 42.0 0.3 0.24 J ND ND 0.16 J ND 0.14 J ND ND ND

05/25/1605/25/16

EPA Region

4 Acute

ESV

EPA

Region 5 ESL

GL-SW-

06-

052516

GL-L-05-

052516

05/25/16 05/25/16

GL-SW-01-

052316

GL-SW-

02-

052316

GL-SW-03-

052316

GL-SW-04-

052516-

Dup

05/23/16 05/23/16

GL-SW-04-

052516

05/25/16

Analyte

OEPA Aquatic

Life OMZA

(chronic)

OEPA Aquatic

Life OMZM

(short term)

OEPA Aquatic

Life IMZM

(very short

term)

GL-SW-

05-052516

GL-L-02-

052516

05/25/1605/23/16

1 of 2

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Table 6

Leachate and Surface Water Samples:

VOCs, SVOCs, PCBs, Pesticides and Herbicides Analytical Results Summary

Oregon, Lucas County, Ohio

Sample ID:

Date Collected: 05/25/1605/25/16

EPA Region

4 Acute

ESV

EPA

Region 5 ESL

GL-SW-

06-

052516

GL-L-05-

052516

05/25/16 05/25/16

GL-SW-01-

052316

GL-SW-

02-

052316

GL-SW-03-

052316

GL-SW-04-

052516-

Dup

05/23/16 05/23/16

GL-SW-04-

052516

05/25/16

Analyte

OEPA Aquatic

Life OMZA

(chronic)

OEPA Aquatic

Life OMZM

(short term)

OEPA Aquatic

Life IMZM

(very short

term)

GL-SW-

05-052516

GL-L-02-

052516

05/25/1605/23/16

VOCs

1,2-Dichlorobenzene 260 130 23 130 14 ND 0.37 J ND ND ND ND ND ND ND

1,2-Dichloroethane 19,000 9,600 2,000 8,200 910 ND 1.1 ND ND ND ND ND ND ND

1,4-Dioxane ID ID ID NC 22,000 ND 170 J+ ND ND ND 110 J+ 100 J+ 570 J+ ND

Benzene 1,400 700 160 700 114 ND 41 ND ND ND ND ND 4.3 ND

Carbon disulfide 260 130 15 130 15 ND 1.4 ND ND ND ND ND ND ND

Chlorobenzene 850 420 47 220 47 140 13 ND ND ND ND ND 3.4 ND

Cyclohexane NC NC NC NC NC 1.4 J 0.67 J ND ND ND ND ND ND ND

Ethylbenzene 1,100 550 61 550 14 ND 0.81 ND ND ND ND ND 58 ND

Isopropylbenzene 86 43 4.8 43 NC 3.3 6.5 ND ND ND ND ND 14 ND

Methyl tert-butyl ether 13,000 6,500 730 6,500 NC ND 1.3 ND ND ND ND ND ND ND

Methylcyclohexane NC NC NC NC NC ND 0.47 J ND ND ND ND ND ND ND

Methylene chloride 22,000 11,000 1,900 8,500 940 3.2 J ND ND ND ND ND ND 3.1 J ND

Toluene 1,100 560 62 560 253 ND ND ND ND ND ND ND 2.2 J ND

trans -1,3-Dichloropropene 30 15 2 15 NC ND 2.2 ND ND ND ND ND ND ND

Xylenes 480 240 27 240 27 5.1 J 4.0 ND ND ND ND ND 110 ND

pH NC NC NC 6.5-9.0 NC 7.05 6.49 7.27 7.7 8.5 7.17 7.26 7.45 7.29

Notes:

Notes:

All values presented in micrograms per liter (µg/L), except for pH, which is in standard units (S.U.)

Italics Value represents an exceedance of OEPA Aquatic Life Very Short Term IMZM

Value represents an exceedance of OEPA Aquatic Life Short Term OMZM and OEPA Aquatic Life Chronic OMZA

Value represents an exceedance of OEPA Aquatic Life Chronic OMZA

Boldface Value represents an exceedance of EPA Region 4 Acute Ecological Screening Value

Value represents an exceedance of EPA Region 5 Ecological Screening Level

* Based upon mink exposure only

BHC Benzene hexachloride

DDD Dichlorodiphenyldichloroethane

DDT Dichlorodiphenyltrichloroethane

EPA U.S. Environmental Protection Agency

ESL Ecological Screening Level

ESV Ecological Screening Value

ID Insufficient data available to calculate criteria

IMZM Inside Mixing Zone Maximum

J The associated value is the approximate concentration of the analyte in the sample

J- The associated value is the approximate concentration of the analyte in the sample and may be biased low

J+ The associated value is the approximate concentration of the analyte in the sample and may be biased high

NC No criteria established

ND Non-detect

OEPA Ohio Environmental Protection Agency

OMZA Outside Mixing Zone Average

OMZM Outside Mixing Zone Maximum

PCBs Polychlorinated Biphenyls

SVOCs Semivolatile Organic Compounds

VOCs Volatile Organic Compounds

2 of 2

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APPENDIX C

FIELD LOGBOOK

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APPENDIX D

PHOTOGRAPHIC DOCUMENTATION LOG

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Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 1

Photograph: 1

Direction: East

Date: 05/23/16

Photographer: Brad Hartwell

Description:

View of north pond,

with north adjoining

Commercial Oil

Services’ landfill

beyond.

Photograph: 2

Direction: Southeast

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of south pond.

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Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 2

Photograph: 3

Direction: Southwest

Date: 05/25/16

Photographer: Brad Hartwell

Description:

View of the south

drainage ditch, with the

south adjoining

Envirosafe landfill

beyond.

Photograph: 4

Direction: Northwest

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of the on-site north

power line easement.

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Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 3

Photograph: 5

Direction: Southwest

Date: 05/25/16

Photographer: Brad Hartwell

Description:

Location where Gradel

Ditch meets Otter Creek

Road.

Photograph: 6

Direction: East

Date: 05/25/16

Photographer: Brad Hartwell

Description:

Mature trees and woody

vegetation undermining

the cap material on-site.

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Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 4

Photograph: 7

Direction: Southeast

Date: 05/25/16

Photographer: Brad Hartwell

Description:

View of east adjoining

farmland.

Photograph: 8

Direction: Southwest

Date: 05/25/16

Photographer: Brad Hartwell

Description:

View of west adjoining

wetlands beyond Otter

Creek Road.

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Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 5

Photograph: 9

Direction: East

Date: 05/25/16

Photographer: Brad Hartwell

Description:

View of location of

temporary monitoring

well TW2.

Photograph: 10

Direction: Northeast

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of location of soil

boring B3.

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Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 6

Photograph: 11

Direction: South

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of location of soil

boring B4.

Photograph: 12

Direction: East

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of location of

temporary monitoring

well TW5.

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Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 7

Photograph: 13

Direction: Southeast

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of location of soil

boring B6.

Photograph: 14

Direction: West

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of location of soil

boring B7.

Page 61: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 8

Photograph: 15

Direction: West

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of location of soil

boring B8.

Photograph: 16

Direction: South

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of location of soil

boring B9.

Page 62: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 9

Photograph: 17

Direction: North

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of location of soil

boring B10.

Photograph: 18

Direction: North

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of GeoProbe track

rig completing soil

boring B11.

Page 63: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 10

Photograph: 19

Direction: NA

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of white layer of

suspect asbestos

material, and gray layer

of suspect slag material

in soil boring B1.

Photograph: 20

Direction: North

Date: 05/25/16

Photographer: Brad Hartwell

Description:

View of location of

samples GL-SD-01-

052316 and GL-SW-01-

052316 in the north

pond.

Page 64: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 11

Photograph: 21

Direction: South

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of location of

samples GL-SD-02-

052316 and GL-SW-02-

052316 in the south

pond.

Photograph: 22

Direction: North

Date: 05/24/16

Photographer: Brad Hartwell

Description:

View of location of

samples GL-SD-03-

052316 and GL-SW-03-

052316 in the north

pond.

Page 65: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Photographic Documentation Log

Client: U.S. Environmental Protection Agency Region 5 Prepared By: Tetra Tech, Inc.

Site Name: Gradel Landfill RS TDD: S05-0001-1601-001

Location: Oregon, Lucas County, Ohio

Page 12

Photograph: 23

Direction: Southwest

Date: 05/25/16

Photographer: Brad Hartwell

Description:

View of location of

samples GL-SD-04-

052516 and GL-SW-04-

052516.

Photograph: 24

Direction: South

Date: 05/25/16

Photographer: Brad Hartwell

Description:

View of location of

samples GL-SD-05-

052516 and GL-SW-05-

052516.

Page 66: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

APPENDIX E

SOIL BORING AND TEMPORARY MONITORING WELL LOGS

Page 67: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Page 1 of 2

Boring ID: B1

Monitoring Well ID:

Project Number: 103X90260001S051601001 Project Name: Gradel Landfill RS

Client: U.S. EPA

Site: 1100 Otter Creek Road, Oregon, Lucas County, Ohio

Borehole Location (Township, Range, Section):

Logged By: Karl Schultz

Reviewed By: Brad Hartwell Review Date:

Drilling Contractor: Terra Probe Environmental, Inc.

Drill Rig Type/Method: Track Geoprobe / Direct-Push Method

Sampler Type: 2" Polyvinylchloride Liner

Borehole Diameter (inches): 2 to: feet bgs

Overdrilled Diameter (inches): to: feet bgs

Drill Start Date: 05/24/16 Drill Start Time:

Drill Finish Date: 05/24/16 Drill Finish Time:

Total Borehole Depth (feet bgs): 15.0

Soil Boring Backfill Date: 05/24/16 Soil Boring Backfill Time:

Ground Surface Reference Elevation (feet msl):

Depth to 1st Saturated Zone (feet bgs): 10.0 Date: Time:

Depth to Other Water-Bearing Zones (feet bgs):

Depth to Water After Drilling (feet bgs):

Well Completion Date: Well Completion Time:

Screen Interval (feet bgs): Total Well Depth (feet bgs):

Well Diameter (inches): Well Casing Material:

Static Water Level After Well Installation (feet bgs):

BOREHOLE LOCATION MAP NOTES/REMARKS

06/06/16

9:25

15.0

9:4505/24/16

16:00

9:35

Page 68: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Installation: Terra Probe Environmental, Inc. DATE:CTO: LOGGED BY: Karl SchultzBORING ID: B1 MW ID: Page 2 of 2

Sam

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Sam

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/6in

.

Phys

icalA

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sis

Chem

icalA

naly

sis

PID

Readin

g(p

pm

)

Well

Const

ruct

ion

Info

Depth

(feetbgs)

US

CS

Typ

e/D

esi

gnatio

n

Soil Description

%G

ravel

%C

oars

eS

and

%M

ediu

mS

and

%F

ine

Sand

%S

ilt/C

lay

0.0' - 0.5' Topsoil

ND 1 0.5' - 1.0' Plastic and white powder material

ND 1.0' - 1.5' Grey ash

2 1.5' - 2.0' Organic wood material

2.0' - 4.5' Fill

3

4

36/60 5 4.5' - 5.5' Brown clay

6 5.5' - 10.0' Fill

7

8

9

12/60 ND 10

10.0' - 15.0' Wet black gravelly fill with

ND 11 occasional metallic balls

ND 12

ND 13

ND 14

36/60 ND 15

E.O.B. at 15.0' bgs

05/24/16

Page 69: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Page 1 of 2

Boring ID: B2

Monitoring Well ID: TW2

Project Number: 103X90260001S051601001 Project Name: Gradel Landfill RS

Client: U.S. EPA

Site: 1100 Otter Creek Road, Oregon, Lucas County, Ohio

Borehole Location (Township, Range, Section):

Logged By: Karl Schultz

Reviewed By: Brad Hartwell Review Date:

Drilling Contractor: Terra Probe Environmental, Inc.

Drill Rig Type/Method: Track Geoprobe / Direct-Push Method

Sampler Type: 2" Polyvinylchloride Liner

Borehole Diameter (inches): 2 to: 15 feet bgs

Overdrilled Diameter (inches): to: feet bgs

Drill Start Date: 05/24/16 Drill Start Time:

Drill Finish Date: 05/24/16 Drill Finish Time:

Total Borehole Depth (feet bgs): 16.0

Soil Boring Backfill Date: Soil Boring Backfill Time:

Ground Surface Reference Elevation (feet msl):

Depth to 1st Saturated Zone (feet bgs): 10.0 Date: Time:

Depth to Other Water-Bearing Zones (feet bgs):

Depth to Water After Drilling (feet bgs):

Well Completion Date: Well Completion Time:

Screen Interval (feet bgs): 5.0 - 15.0 Total Well Depth (feet bgs):

Well Diameter (inches): 1 Well Casing Material:

Static Water Level After Well Installation (feet bgs): 9.02

BOREHOLE LOCATION MAP NOTES/REMARKS

PVC

10:45

10:55

05/24/16

05/24/16

06/06/16

11:00

11:15

15.0

Page 70: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Installation: Terra Probe Environmental, Inc. DATE:CTO: LOGGED BY: Karl SchultzBORING ID: B2 MW ID: TW2 Page 2 of 2

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/6in

.

Phys

icalA

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Chem

icalA

naly

sis

PID

Readin

g(p

pm

)

Well

Const

ruct

ion

Info

Depth

(feetbgs)

US

CS

Typ

e/D

esi

gnatio

n

Soil Description

%G

ravel

%C

oars

eS

and

%M

ediu

mS

and

%F

ine

Sand

%S

ilt/C

lay

0.0' - 4.0' Brown clay

1

2

3

30/48 4

4.0' - 8.0' Fill, mainly wood debris

5

6

7

8/48 8

8.0' - 10.0' Fill with mixed debris

9

10

10.0' - 16.0' Wet fill, with mixed refuse

11

14/48 12

13

14

15

12/48 16

E.O.B. at 16.0' bgs

05/24/16

Page 71: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Page 1 of 2

Boring ID: B3

Monitoring Well ID:

Project Number: 103X90260001S051601001 Project Name: Gradel Landfill RS

Client: U.S. EPA

Site: 1100 Otter Creek Road, Oregon, Lucas County, Ohio

Borehole Location (Township, Range, Section):

Logged By: Karl Schultz

Reviewed By: Brad Hartwell Review Date:

Drilling Contractor: Terra Probe Environmental, Inc.

Drill Rig Type/Method: Track Geoprobe / Direct-Push Method

Sampler Type: 2" Polyvinylchloride Liner

Borehole Diameter (inches): 2 to: feet bgs

Overdrilled Diameter (inches): to: feet bgs

Drill Start Date: 05/24/16 Drill Start Time:

Drill Finish Date: 05/24/16 Drill Finish Time:

Total Borehole Depth (feet bgs): 10.0

Soil Boring Backfill Date: 05/24/16 Soil Boring Backfill Time:

Ground Surface Reference Elevation (feet msl):

Depth to 1st Saturated Zone (feet bgs): 7.0 Date: Time:

Depth to Other Water-Bearing Zones (feet bgs):

Depth to Water After Drilling (feet bgs):

Well Completion Date: Well Completion Time:

Screen Interval (feet bgs): Total Well Depth (feet bgs):

Well Diameter (inches): Well Casing Material:

Static Water Level After Well Installation (feet bgs):

BOREHOLE LOCATION MAP NOTES/REMARKS

06/07/16

9:50

10.0

10:0505/24/16

15:50

10:00

Page 72: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Installation: Terra Probe Environmental, Inc. DATE:CTO: LOGGED BY: Karl SchultzBORING ID: B3 MW ID: Page 2 of 2

Sam

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Sam

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.

Phys

icalA

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Chem

icalA

naly

sis

PID

Readin

g(p

pm

)

Well

Const

ruct

ion

Info

Depth

(feetbgs)

US

CS

Typ

e/D

esi

gnatio

n

Soil Description

%G

ravel

%C

oars

eS

and

%M

ediu

mS

and

%F

ine

Sand

%S

ilt/C

lay

0.0' - 4.0' Brown clay

1

2

3

4

4.0' - 7.0' Fill

54/60 5

6

7

7.0' - 10.0' Dense wet fill with mixed refuse

8

9

18/60 10

E.O.B. at 10.0' bgs

05/24/16

Page 73: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Page 1 of 2

Boring ID: B4

Monitoring Well ID:

Project Number: 103X90260001S051601001 Project Name: Gradel Landfill RS

Client: U.S. EPA

Site: 1100 Otter Creek Road, Oregon, Lucas County, Ohio

Borehole Location (Township, Range, Section):

Logged By: Karl Schultz

Reviewed By: Brad Hartwell Review Date:

Drilling Contractor: Terra Probe Environmental, Inc.

Drill Rig Type/Method: Track Geoprobe / Direct-Push Method

Sampler Type: 2" Polyvinylchloride Liner

Borehole Diameter (inches): 2 to: feet bgs

Overdrilled Diameter (inches): to: feet bgs

Drill Start Date: 05/24/16 Drill Start Time:

Drill Finish Date: 05/24/16 Drill Finish Time:

Total Borehole Depth (feet bgs): 10.0

Soil Boring Backfill Date: 05/24/16 Soil Boring Backfill Time:

Ground Surface Reference Elevation (feet msl):

Depth to 1st Saturated Zone (feet bgs): 6.5 Date: Time:

Depth to Other Water-Bearing Zones (feet bgs):

Depth to Water After Drilling (feet bgs):

Well Completion Date: Well Completion Time:

Screen Interval (feet bgs): Total Well Depth (feet bgs):

Well Diameter (inches): Well Casing Material:

Static Water Level After Well Installation (feet bgs):

BOREHOLE LOCATION MAP NOTES/REMARKS

10:35

06/07/16

10:25

10.0

05/24/16

15:45

10:35

Page 74: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Installation: Terra Probe Environmental, Inc. DATE:CTO: LOGGED BY: Karl SchultzBORING ID: B4 MW ID: Page 2 of 2

Sam

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Sam

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.)

Blo

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ounts

/6in

.

Phys

icalA

naly

sis

Chem

icalA

naly

sis

PID

Readin

g(p

pm

)

Well

Const

ruct

ion

Info

Depth

(feetbgs)

US

CS

Typ

e/D

esi

gnatio

n

Soil Description

%G

ravel

%C

oars

eS

and

%M

ediu

mS

and

%F

ine

Sand

%S

ilt/C

lay

0.0' - 4.0' Brown clay

1

2

3

4

4.0' Plastic liner

30/60 5 4.0' - 6.5' Fill, mixed with refuse

6

7 6.5' - 10.0' Wet fill, mixed with refuse

8

9

12/60 10

E.O.B. at 10.0' bgs

05/24/16

Page 75: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Page 1 of 2

Boring ID: B5

Monitoring Well ID: TW5

Project Number: 103X90260001S051601001 Project Name: Gradel Landfill RS

Client: U.S. EPA

Site: 1100 Otter Creek Road, Oregon, Lucas County, Ohio

Borehole Location (Township, Range, Section):

Logged By: Karl Schultz

Reviewed By: Brad Hartwell Review Date:

Drilling Contractor: Terra Probe Environmental, Inc.

Drill Rig Type/Method: Track Geoprobe / Direct-Push Method

Sampler Type: 2" Polyvinylchloride Liner

Borehole Diameter (inches): 2 to: feet bgs

Overdrilled Diameter (inches): to: feet bgs

Drill Start Date: 05/24/16 Drill Start Time:

Drill Finish Date: 05/24/16 Drill Finish Time:

Total Borehole Depth (feet bgs): 12.0

Soil Boring Backfill Date: 05/24/16 Soil Boring Backfill Time:

Ground Surface Reference Elevation (feet msl):

Depth to 1st Saturated Zone (feet bgs): Date: Time:

Depth to Other Water-Bearing Zones (feet bgs):

Depth to Water After Drilling (feet bgs):

Well Completion Date: 05/24/16 Well Completion Time:

Screen Interval (feet bgs): 6.0 - 11.0 Total Well Depth (feet bgs):

Well Diameter (inches): 1" Well Casing Material: PVC

Static Water Level After Well Installation (feet bgs): 2.3

BOREHOLE LOCATION MAP NOTES/REMARKS

11:50

11

06/07/16

11:30

12.0

15:40

11:40

Page 76: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Installation: Terra Probe Environmental, Inc. DATE:CTO: LOGGED BY: Karl SchultzBORING ID: B5 MW ID: TW5 Page 2 of 2

Sam

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Sam

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.)

Blo

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/6in

.

Phys

icalA

naly

sis

Chem

icalA

naly

sis

PID

Readin

g(p

pm

)

Well

Const

ruct

ion

Info

Depth

(feetbgs)

US

CS

Typ

e/D

esi

gnatio

n

Soil Description

%G

ravel

%C

oars

eS

and

%M

ediu

mS

and

%F

ine

Sand

%S

ilt/C

lay

0.0' - 4.0' Mottled clay with occasional

1 gravel

2

3

36/48 4

4.0' - 7.0' Brown clay

5

6

7

7.0' - 8.0' Black gravelly clay fill

24/48 8

8.0' - 12.0' Wet fill, with mixed refuse

9

10

11

12/48 12

E.O.B. at 12.0' bgs

05/24/16

Page 77: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Page 1 of 2

Boring ID: B6

Monitoring Well ID:

Project Number: 103X90260001S051601001 Project Name: Gradel Landfill RS

Client: U.S. EPA

Site: 1100 Otter Creek Road, Oregon, Lucas County, Ohio

Borehole Location (Township, Range, Section):

Logged By: Karl Schultz

Reviewed By: Brad Hartwell Review Date:

Drilling Contractor: Terra Probe Environmental, Inc.

Drill Rig Type/Method: Track Geoprobe / Direct-Push Method

Sampler Type: 2" Polyvinylchloride Liner

Borehole Diameter (inches): 2 to: feet bgs

Overdrilled Diameter (inches): to: feet bgs

Drill Start Date: 05/24/16 Drill Start Time:

Drill Finish Date: 05/24/16 Drill Finish Time:

Total Borehole Depth (feet bgs): 10.0

Soil Boring Backfill Date: 05/24/16 Soil Boring Backfill Time:

Ground Surface Reference Elevation (feet msl):

Depth to 1st Saturated Zone (feet bgs): 9.5 Date: Time:

Depth to Other Water-Bearing Zones (feet bgs):

Depth to Water After Drilling (feet bgs):

Well Completion Date: Well Completion Time:

Screen Interval (feet bgs): Total Well Depth (feet bgs):

Well Diameter (inches): Well Casing Material:

Static Water Level After Well Installation (feet bgs):

BOREHOLE LOCATION MAP NOTES/REMARKS

12:05

06/07/16

11:45

10.0

05/24/16

15:35

12:00

Page 78: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Installation: Terra Probe Environmental, Inc. DATE:CTO: LOGGED BY: Karl SchultzBORING ID: B6 MW ID: Page 2 of 2

Sam

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Sam

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.)

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/6in

.

Phys

icalA

naly

sis

Chem

icalA

naly

sis

PID

Readin

g(p

pm

)

Well

Const

ruct

ion

Info

Depth

(feetbgs)

US

CS

Typ

e/D

esi

gnatio

n

Soil Description

%G

ravel

%C

oars

eS

and

%M

ediu

mS

and

%F

ine

Sand

%S

ilt/C

lay

0.0' - 9.5' Grey clay with occasional gravel

1

2

3

4

60/60 5

6

7

8

9

14/60 10 Wet black fill

E.O.B. at 10.0' bgs

05/24/16

Page 79: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Page 1 of 2

Boring ID: B7

Monitoring Well ID:

Project Number: 103X90260001S051601001 Project Name: Gradel Landfill RS

Client: U.S. EPA

Site: 1100 Otter Creek Road, Oregon, Lucas County, Ohio

Borehole Location (Township, Range, Section):

Logged By: Karl Schultz

Reviewed By: Brad Hartwell Review Date:

Drilling Contractor: Terra Probe Environmental, Inc.

Drill Rig Type/Method: Track Geoprobe / Direct-Push Method

Sampler Type: 2" Polyvinylchloride Liner

Borehole Diameter (inches): 2 to: feet bgs

Overdrilled Diameter (inches): to: feet bgs

Drill Start Date: 05/24/16 Drill Start Time:

Drill Finish Date: 05/24/16 Drill Finish Time:

Total Borehole Depth (feet bgs): 10.0

Soil Boring Backfill Date: 05/24/16 Soil Boring Backfill Time:

Ground Surface Reference Elevation (feet msl):

Depth to 1st Saturated Zone (feet bgs): Date: Time:

Depth to Other Water-Bearing Zones (feet bgs):

Depth to Water After Drilling (feet bgs):

Well Completion Date: Well Completion Time:

Screen Interval (feet bgs): Total Well Depth (feet bgs):

Well Diameter (inches): Well Casing Material:

Static Water Level After Well Installation (feet bgs):

BOREHOLE LOCATION MAP NOTES/REMARKS

06/07/16

12:10

10.0

15:30

12:20

Page 80: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

BOREHOLE LOG

Installation: Terra Probe Environmental, Inc. DATE:CTO: LOGGED BY: Karl SchultzBORING ID: B7 MW ID: Page 2 of 2

Sam

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Sam

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.)

Blo

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/6in

.

Phys

icalA

naly

sis

Chem

icalA

naly

sis

PID

Readin

g(p

pm

)

Well

Const

ruct

ion

Info

Depth

(feetbgs)

US

CS

Typ

e/D

esi

gnatio

n

Soil Description

%G

ravel

%C

oars

eS

and

%M

ediu

mS

and

%F

ine

Sand

%S

ilt/C

lay

0.0' - 6.0' Brown silty clay with occasional

1 gravel

2

3

4

60/60 5

6

6.0' - 10.0' Black fill with refuse and wood

7

8

9

24/60 10

E.O.B. at 10.0' bgs

05/24/16

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BOREHOLE LOG

Page 1 of 2

Boring ID: B8

Monitoring Well ID:

Project Number: 103X90260001S051601001 Project Name: Gradel Landfill RS

Client: U.S. EPA

Site: 1100 Otter Creek Road, Oregon, Lucas County, Ohio

Borehole Location (Township, Range, Section):

Logged By: Karl Schultz

Reviewed By: Brad Hartwell Review Date:

Drilling Contractor: Terra Probe Environmental, Inc.

Drill Rig Type/Method: Track Geoprobe / Direct-Push Method

Sampler Type: 2" Polyvinylchloride Liner

Borehole Diameter (inches): 2 to: feet bgs

Overdrilled Diameter (inches): to: feet bgs

Drill Start Date: 05/24/16 Drill Start Time:

Drill Finish Date: 05/24/16 Drill Finish Time:

Total Borehole Depth (feet bgs): 10.0

Soil Boring Backfill Date: 05/24/16 Soil Boring Backfill Time:

Ground Surface Reference Elevation (feet msl):

Depth to 1st Saturated Zone (feet bgs): 9.5 Date: Time:

Depth to Other Water-Bearing Zones (feet bgs):

Depth to Water After Drilling (feet bgs):

Well Completion Date: Well Completion Time:

Screen Interval (feet bgs): Total Well Depth (feet bgs):

Well Diameter (inches): Well Casing Material:

Static Water Level After Well Installation (feet bgs):

BOREHOLE LOCATION MAP NOTES/REMARKS

12:40

06/07/16

12:25

10.0

05/24/16

15:25

12:35

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BOREHOLE LOG

Installation: Terra Probe Environmental, Inc. DATE:CTO: LOGGED BY: Karl SchultzBORING ID: B8 MW ID: Page 2 of 2

Sam

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Well

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Info

Depth

(feetbgs)

US

CS

Typ

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esi

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Soil Description

%G

ravel

%C

oars

eS

and

%M

ediu

mS

and

%F

ine

Sand

%S

ilt/C

lay

0.0' - 5.0' Brown silty clay with occasional

1 gravel

2

3

4

52/60 5

5.0' - 8.0' Silty gravelly fill with wood debris

6

7

8

8.0' - 10' Gray and white fiberous fill

9

14/60 10

E.O.B. at 10.0' bgs

05/24/16

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BOREHOLE LOG

Page 1 of 2

Boring ID: B9

Monitoring Well ID:

Project Number: 103X90260001S051601001 Project Name: Gradel Landfill RS

Client: U.S. EPA

Site: 1100 Otter Creek Road, Oregon, Lucas County, Ohio

Borehole Location (Township, Range, Section):

Logged By: Karl Schultz

Reviewed By: Brad Hartwell Review Date:

Drilling Contractor: Terra Probe Environmental, Inc.

Drill Rig Type/Method: Track Geoprobe / Direct-Push Method

Sampler Type: 2" Polyvinylchloride Liner

Borehole Diameter (inches): 2 to: feet bgs

Overdrilled Diameter (inches): to: feet bgs

Drill Start Date: 05/24/16 Drill Start Time:

Drill Finish Date: 05/24/16 Drill Finish Time:

Total Borehole Depth (feet bgs): 10.0

Soil Boring Backfill Date: 05/24/16 Soil Boring Backfill Time:

Ground Surface Reference Elevation (feet msl):

Depth to 1st Saturated Zone (feet bgs): Date: Time:

Depth to Other Water-Bearing Zones (feet bgs):

Depth to Water After Drilling (feet bgs):

Well Completion Date: Well Completion Time:

Screen Interval (feet bgs): Total Well Depth (feet bgs):

Well Diameter (inches): Well Casing Material:

Static Water Level After Well Installation (feet bgs):

BOREHOLE LOCATION MAP NOTES/REMARKS

06/07/16

12:40

10.0

15:25

12:50

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BOREHOLE LOG

Installation: Terra Probe Environmental, Inc. DATE:CTO: LOGGED BY: Karl SchultzBORING ID: B9 MW ID: Page 2 of 2

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Info

Depth

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US

CS

Typ

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esi

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Soil Description

%G

ravel

%C

oars

eS

and

%M

ediu

mS

and

%F

ine

Sand

%S

ilt/C

lay

0.0' - 3.0' Brown silty clay

1

2

3

3.0' - 5.0' Fill with debris

4

48/60 5

5.0' - 8.0' Fill with debris and refuse

6

7

8

8.0' - 10.0' Black fill with debris and refuse

9

14/60 10

E.O.B. at 10.0' bgs

05/24/16

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BOREHOLE LOG

Page 1 of 2

Boring ID: B10

Monitoring Well ID:

Project Number: 103X90260001S051601001 Project Name: Gradel Landfill RS

Client: U.S. EPA

Site: 1100 Otter Creek Road, Oregon, Lucas County, Ohio

Borehole Location (Township, Range, Section):

Logged By: Karl Schultz

Reviewed By: Brad Hartwell Review Date:

Drilling Contractor: Terra Probe Environmental, Inc.

Drill Rig Type/Method: Track Geoprobe / Direct-Push Method

Sampler Type: 2" Polyvinylchloride Liner

Borehole Diameter (inches): 2 to: feet bgs

Overdrilled Diameter (inches): to: feet bgs

Drill Start Date: 05/24/16 Drill Start Time:

Drill Finish Date: 05/24/16 Drill Finish Time:

Total Borehole Depth (feet bgs): 12.0

Soil Boring Backfill Date: 05/24/16 Soil Boring Backfill Time:

Ground Surface Reference Elevation (feet msl):

Depth to 1st Saturated Zone (feet bgs): Date: Time:

Depth to Other Water-Bearing Zones (feet bgs):

Depth to Water After Drilling (feet bgs):

Well Completion Date: Well Completion Time:

Screen Interval (feet bgs): Total Well Depth (feet bgs):

Well Diameter (inches): Well Casing Material:

Static Water Level After Well Installation (feet bgs):

BOREHOLE LOCATION MAP NOTES/REMARKS

06/07/16

12:55

12.0

15:15

13:10

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BOREHOLE LOG

Installation: Terra Probe Environmental, Inc. DATE:CTO: LOGGED BY: Karl SchultzBORING ID: B10 MW ID: Page 2 of 2

Sam

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Info

Depth

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Typ

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esi

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n

Soil Description

%G

ravel

%C

oars

eS

and

%M

ediu

mS

and

%F

ine

Sand

%S

ilt/C

lay

0.0' - 2.0' Brown silty clay

1

2

2.0' - 2.5' Fill

3 2.5' - 4.0' Brown clay

28/48 4 4.0' Brown clay with black staining

4.0' - 8.0' No recovery*

5

6

7

0/48 8

8.0' - 12.0' Fill mixed with refuse

9

10

11

20/48 12

E.O.B. at 12.0' bgs

05/24/16

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BOREHOLE LOG

Page 1 of 2

Boring ID: B11

Monitoring Well ID:

Project Number: 103X90260001S051601001 Project Name: Gradel Landfill RS

Client: U.S. EPA

Site: 1100 Otter Creek Road, Oregon, Lucas County, Ohio

Borehole Location (Township, Range, Section):

Logged By: Karl Schultz

Reviewed By: Brad Hartwell Review Date:

Drilling Contractor: Terra Probe Environmental, Inc.

Drill Rig Type/Method: Track Geoprobe / Direct-Push Method

Sampler Type: 2" Polyvinylchloride Liner

Borehole Diameter (inches): 2 to: feet bgs

Overdrilled Diameter (inches): to: feet bgs

Drill Start Date: 05/24/16 Drill Start Time:

Drill Finish Date: 05/24/16 Drill Finish Time:

Total Borehole Depth (feet bgs): 10.0

Soil Boring Backfill Date: 05/24/16 Soil Boring Backfill Time:

Ground Surface Reference Elevation (feet msl):

Depth to 1st Saturated Zone (feet bgs): Date: Time:

Depth to Other Water-Bearing Zones (feet bgs):

Depth to Water After Drilling (feet bgs):

Well Completion Date: Well Completion Time:

Screen Interval (feet bgs): Total Well Depth (feet bgs):

Well Diameter (inches): Well Casing Material:

Static Water Level After Well Installation (feet bgs):

BOREHOLE LOCATION MAP NOTES/REMARKS

06/07/16

13:40

10.0

16:05

13:50

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BOREHOLE LOG

Installation: Terra Probe Environmental, Inc. DATE:CTO: LOGGED BY: Karl SchultzBORING ID: B11 MW ID: Page 2 of 2

Sam

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Well

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Info

Depth

(feetbgs)

US

CS

Typ

e/D

esi

gnatio

n

Soil Description

%G

ravel

%C

oars

eS

and

%M

ediu

mS

and

%F

ine

Sand

%S

ilt/C

lay

0.0' - 7.0' Brown clay

1

2

3

4

52/60 5

6

7

7.0' -7.7' Organic wood fill

8 7.7' - 8.0' White powder fill

8.0' - 10.0' Organic wood fill with layers of gravel

9 and debris

24/60 10

E.O.B. at 10.0' bgs

05/24/16

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APPENDIX F

CHAINS-OF-CUSTODY

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APPENDIX G

ENVIRONMENTAL IMPACT DOCUMENTATION

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Check if

planning to

use

Check if Not -

Applicable

If neither box is checked

explain why SBMP will

not be used

Standard Best Management Practice (SBMP)

X

Revegetate excavated areas and/or areas disrupted by equipment or vehicles as quickly as

possible, using native vegetation if possible. Restore as close as possible to original

conditions.

X

Survey on-site buildings and infrastructure to determine material types and approximate

quantities that could be reused or recycled and evaluate opportunities for on-site or local

re-use and/or recycling.

XTo the extent feasible, use compact fluorescent lighting (CFL) or LED lighting in all on-site

equipment and properly recycle CFLs or LEDs.

X To the extent possible, use Energy Star appliances.

X Use programmable thermostats to minimize energy use.

X

Develop a construction waste management plan that establishes a diversion goal, specifies

processes for identifying and segregating contaminated and uncontaminated waste, state

show/where waste will be reused and/or recycled and safely managed and tracked.

X Use biodegradable cleaning products.

XReuse monitoring wells throughout investigations, remediation, and long-term

monitoring.

X Reuse dedicated materials when performing multiple rounds of sampling of all matrices.

XPurchase materials in bulk quantities and packed in reusable/recyclable containers to

reduce packaging waste.

X Purchase liquids in concentrated form to reduce shipping volumes and frequencies.

X Purchase equipment and materials locally when available.

XConsider local recycling program, requirements and regulations, and incorporate them

into Site activities whenever possible.

X Prepare, store, and distribute documents electronically.

XUse paper with recycled content and use double-sided printing option when document

must be printed.

X

Include specific focus on green elements at meetings with all parties including clients,

stakeholders, regulatory agencies, and consultants. Update project team if goals &

responsibilities change.

X Integrate schedules to allow for resource sharing and fewer days of field mobilization.

XIf possible, conduct work during appropriate seasons to reduce weather delays and

additional heating/cooling demands.

X Utilize teleconferences rather than face to face meetings when feasible.

XUse local staff (including subcontractors) when possible to minimize resource

consumption.

XMaintain vehicles on a regular basis such as tune-ups and proper tire inflation. Use green

vehicle maintenance products such as biodegradable lubricants.

XConstruct and maintain engineering controls such as earth dikes and swales to prevent

upgradient surface flow into excavated areas.

X To the extent possible, plan for and segregate hazardous waste and non-hazardous waste.

X Recycle all non-usable/spent equipment/materials following completion of project.

TDD #: S05-0001-1601-001

Site Name: Gradel Landfill RS

Site City, State: Oregon, Ohio

Site Project Manager: Brad Hartwell

EPA OSC: Jon Gulch

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Final Site Report on Environmental Activities and ImpactGradel Landfill

Oregon, Lucas County, Ohio

The following practices were implemented to maximize sustainability:

• Documents were not printed, but were prepared, stored, and distributed electronically, thussaving on ink and paper.

• When printing was deemed necessary, recycled printing paper was utilized.

• Biodegradable cleaning products were used in the field and in the office.

• Required supplies were purchased in bulk to minimize the amount of packaging required.

The following practices were implemented to reduce energy and water use:

• A programmable thermostat was used in the office building to minimize use of natural gasand/or electricity.

• Phone conferences and email correspondence were used for communications regarding the siteto minimize use of fuel that would have occurred during transportation of participants orcorrespondents.

• A low-flow peristaltic pump was utilized with thin tubing to minimize removal of water from thesubsurface.

The following practice was implemented to promote carbon neutrality:

• Idling of vehicles on site was prohibited during site work.

The following practice was implemented to reduce toxic air emissions:

• Not applicable at this time

The following practices were implemented to promote industrial material reuse and recycling:

• Temporary monitoring wells were left in place to allow for future sampling.

• All spent paper, cardboard, aluminum cans, and plastic bottles were recycled via a localrecycling program.

• Packaging materials from the required supplies were nearly 90% recyclable.

The following practice was implemented to protect and preserve the land:

• The GeoProbe track rig maneuvered at the site in such a way as to minimize disturbance ofvegetation and to preserve ground cover.

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ATTACHMENT 1

LABORATORY ANALYTICAL RESULTS

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CT Laboratories LLC • 1230 Lange Court • Baraboo, WI 53913 • 608-356-2760 www.ctlaboratories.com

ANALYTICAL REPORT

This report at a minimum contains the following information: • Analytical Report of Test Results • Description of QC Qualifiers • Chain of Custody (copy) • Quality Control Summary • Case Narrative (if applicable) • Correspondence with Client (if applicable) This report has been specifically prepared to satisfy project or program requirements. These results are in compliance with NELAC requirements for parameters where accreditation is required or available, unless otherwise noted in the case narrative.

119285 - Page 1 of 212

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ANALYTICAL REPORT

BRAD HARTWELL

MADISON HEIGHTS, MI 48071

Purchase Order #: 1111200

Project Name: GRADEL LF

Contract #: 2920

Folder #: 119285

25213 DEQUINDRE ROADDate Received: 05/26/2016

Arrival Temperature: 2.7Report Date: 06/15/2016

TETRA TECH

Reprint Date:

Page 1 of 86

1230 Lange Court • Baraboo, WI 53913 • 608-356-2760

www.ctlaboratories.com

Project #:

Project Phase:

06/16/2016

CT LAB#: 728765

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0850

Analyte

Sample Description: GL-L-02-052516

DODLOD

Client Sample #:

Inorganic Results

S.U.7.05 6/1/16 SAWpH 14:20 ^0.1 EPA 9040C0.1 1.000.10.1

Metals Results

ug/L99.8 6/1/16 NAHTotal Aluminum 05/31/2016 15:00 23:13 ^36 EPA 6010C18 1.00366.0ug/L<2.0 6/1/16 NAHTotal Antimony 05/31/2016 15:00 23:13 ^U12 EPA 6010C6.0 1.00122.0ug/L4.1 6/1/16 NAHTotal Arsenic 05/31/2016 15:00 23:13 ^J24 EPA 6010C12 1.00244.0ug/L312 6/1/16 NAHTotal Barium 05/31/2016 15:00 23:13 ^1.8 EPA 6010C0.90 1.001.80.29ug/L<0.10 6/1/16 NAHTotal Beryllium 05/31/2016 15:00 23:13 ^U0.60 EPA 6010C0.30 1.000.600.10ug/L0.65 6/1/16 NAHTotal Cadmium 05/31/2016 15:00 23:13 ^J2.0 EPA 6010C1.0 1.002.00.30ug/L297000 6/1/16 NAHTotal Calcium 05/31/2016 15:00 23:13 ^100 EPA 6010C50 1.0010017ug/L4.0 6/1/16 NAHTotal Chromium 05/31/2016 15:00 23:13 ^4.0 EPA 6010C2.0 1.004.00.60ug/L2.0 6/1/16 NAHTotal Cobalt 05/31/2016 15:00 23:13 ^J4.0 EPA 6010C2.0 1.004.00.70ug/L<1.2 6/1/16 NAHTotal Copper 05/31/2016 15:00 23:13 ^U7.0 EPA 6010C3.5 1.007.01.2ug/L4640 M 6/1/16 NAHTotal Iron 05/31/2016 15:00 23:13 ^100 EPA 6010C50 1.0010016ug/L9.9 6/1/16 NAHTotal Lead 05/31/2016 15:00 23:13 ^4.0 EPA 6010C2.0 1.004.01.4ug/L193000 6/1/16 NAHTotal Magnesium 05/31/2016 15:00 23:13 ^40 EPA 6010C20 1.00406.0ug/L249 6/1/16 NAHTotal Manganese 05/31/2016 15:00 23:13 ^4.0 EPA 6010C2.0 1.004.00.70

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 2 of 212

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Page 2 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728765

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0850

Analyte

Sample Description: GL-L-02-052516

DODLOD

Client Sample #:

ug/L5.3 6/1/16 NAHTotal Nickel 05/31/2016 15:00 23:13 ^J6.0 EPA 6010C3.0 1.006.01.0ug/L4.9 6/1/16 NAHTotal Selenium 05/31/2016 15:00 23:13 ^J13 EPA 6010C6.5 1.00132.2ug/L<0.70 6/1/16 NAHTotal Silver 05/31/2016 15:00 23:13 ^U4.0 EPA 6010C2.0 1.004.00.70ug/L<2.5 6/1/16 NAHTotal Thallium 05/31/2016 15:00 23:13 ^U15 EPA 6010C7.5 1.00152.5ug/L<0.80 6/1/16 NAHTotal Vanadium 05/31/2016 15:00 23:13 ^U5.0 EPA 6010C2.5 1.005.00.80ug/L71.2 6/1/16 NAHTotal Zinc 05/31/2016 15:00 23:13 ^10 EPA 6010C5.0 1.00101.6ug/L47300 6/2/16 MDSTotal Potassium 05/31/2016 15:00 17:07 ^500 EPA 6010C250 1.0050090ug/L62400 6/2/16 MDSTotal Sodium 05/31/2016 15:00 17:07 ^600 EPA 6010C300 1.00600100ug/L<0.030 5/31/16 LJFTotal Mercury 05/27/2016 07:30 09:04 ^U0.12 EPA 7470A0.060 1.000.120.030

Organic Results

Qualifiers applying to all Analytes of Method EPA 8260C: T ug/L<1.1 5/31/16 AGK1,1,1-Trichloroethane 17:23 ^U2.5 EPA 8260C1.3 5.002.51.1ug/L<0.95 5/31/16 AGK1,1,2,2-Tetrachloroethane 17:23 ^U2.5 EPA 8260C1.3 5.002.50.95ug/L<1.3 5/31/16 AGK1,1,2-Trichloroethane 17:23 ^U5.0 EPA 8260C2.5 5.005.01.3ug/L<1.0 5/31/16 AGK1,1-Dichloroethane 17:23 ^U2.5 EPA 8260C1.3 5.002.51.0ug/L<1.2 5/31/16 AGK1,1-Dichloroethene 17:23 ^U2.5 EPA 8260C1.3 5.002.51.2ug/L<1.5 5/31/16 AGK1,2,3-Trichlorobenzene 17:23 ^U5.0 EPA 8260C2.5 5.005.01.5ug/L<1.5 5/31/16 AGK1,2,4-Trichlorobenzene 17:23 ^U5.0 EPA 8260C2.5 5.005.01.5ug/L<2.0 5/31/16 AGK1,2-Dibromo-3-chloropropane 17:23 ^U5.0 EPA 8260C2.5 5.005.02.0ug/L<0.80 5/31/16 AGK1,2-Dibromoethane 17:23 ^U2.5 EPA 8260C1.3 5.002.50.80ug/L<1.2 5/31/16 AGK1,2-Dichlorobenzene 17:23 ^U2.5 EPA 8260C1.3 5.002.51.2ug/L<1.5 5/31/16 AGK1,2-Dichloroethane 17:23 ^U5.0 EPA 8260C2.5 5.005.01.5ug/L<1.1 5/31/16 AGK1,2-Dichloropropane 17:23 ^U2.5 EPA 8260C1.3 5.002.51.1ug/L<1.3 5/31/16 AGK1,3-Dichlorobenzene 17:23 ^U5.0 EPA 8260C2.5 5.005.01.3ug/L<1.1 5/31/16 AGK1,4-Dichloro-2-butene 17:23U2.5 EPA 8260C1.3 5.002.51.1ug/L<25 Z,Q 5/31/16 AGK1,4-Dioxane 17:23U130 EPA 8260C63 5.0013025

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 3 of 212

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Page 3 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728765

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0850

Analyte

Sample Description: GL-L-02-052516

DODLOD

Client Sample #:

Qualifiers applying to all Analytes of Method EPA 8260C: T ug/L<2.5 5/31/16 AGK112Trichloro122trifluoroethane 17:23U5.0 EPA 8260C2.5 5.005.02.5ug/L<12 5/31/16 AGK2-Butanone 17:23 ^U25 EPA 8260C13 5.002512ug/L<20 5/31/16 AGK2-Hexanone 17:23 ^U50 EPA 8260C25 5.005020ug/L<15 5/31/16 AGK4-Methyl-2-pentanone 17:23 ^U50 EPA 8260C25 5.005015ug/L<25 5/31/16 AGKAcetone 17:23 ^U50 EPA 8260C25 5.005025ug/L<0.95 5/31/16 AGKBenzene 17:23 ^U2.5 EPA 8260C1.3 5.002.50.95ug/L<0.95 5/31/16 AGKBromochloromethane 17:23 ^U2.5 EPA 8260C1.3 5.002.50.95ug/L<1.0 5/31/16 AGKBromodichloromethane 17:23 ^U2.5 EPA 8260C1.3 5.002.51.0ug/L<1.1 5/31/16 AGKBromoform 17:23 ^U2.5 EPA 8260C1.3 5.002.51.1ug/L<2.5 5/31/16 AGKBromomethane 17:23 ^U5.0 EPA 8260C2.5 5.005.02.5ug/L<2.5 5/31/16 AGKCarbon disulfide 17:23 ^U5.0 EPA 8260C2.5 5.005.02.5ug/L<1.2 5/31/16 AGKCarbon tetrachloride 17:23 ^U2.5 EPA 8260C1.3 5.002.51.2ug/L140 5/31/16 AGKChlorobenzene 17:23 ^2.5 EPA 8260C1.3 5.002.51.2ug/L<2.0 5/31/16 AGKChloroethane 17:23 ^U5.0 EPA 8260C2.5 5.005.02.0ug/L<0.75 5/31/16 AGKChloroform 17:23 ^U2.5 EPA 8260C1.3 5.002.50.75ug/L<2.0 5/31/16 AGKChloromethane 17:23 ^U5.0 EPA 8260C2.5 5.005.02.0ug/L<1.3 5/31/16 AGKcis-1,2-Dichloroethene 17:23 ^U2.5 EPA 8260C1.3 5.002.51.3ug/L<0.95 5/31/16 AGKcis-1,3-Dichloropropene 17:23 ^U2.5 EPA 8260C1.3 5.002.50.95ug/L1.4 5/31/16 AGKCyclohexane 17:23J5.0 EPA 8260C2.5 5.005.01.4ug/L<0.95 5/31/16 AGKDibromochloromethane 17:23 ^U2.5 EPA 8260C1.3 5.002.50.95ug/L<1.3 5/31/16 AGKDichlorodifluoromethane 17:23 ^U5.0 EPA 8260C2.5 5.005.01.3ug/L<1.1 5/31/16 AGKEthylbenzene 17:23 ^U2.5 EPA 8260C1.3 5.002.51.1ug/L3.3 5/31/16 AGKIsopropylbenzene 17:23 ^2.5 EPA 8260C1.3 5.002.50.90ug/L3.7 5/31/16 AGKm & p-Xylene 17:23 ^J5.0 EPA 8260C2.5 5.005.02.5ug/L<1.5 5/31/16 AGKMethyl acetate 17:23U5.0 EPA 8260C2.5 5.005.01.5ug/L<1.5 5/31/16 AGKMethyl tert-butyl ether 17:23 ^U5.0 EPA 8260C2.5 5.005.01.5

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 4 of 212

Page 101: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 4 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728765

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0850

Analyte

Sample Description: GL-L-02-052516

DODLOD

Client Sample #:

Qualifiers applying to all Analytes of Method EPA 8260C: T ug/L<1.2 5/31/16 AGKMethylcyclohexane 17:23U2.5 EPA 8260C1.3 5.002.51.2ug/L3.2 5/31/16 AGKMethylene chloride 17:23 ^J10 EPA 8260C2.5 5.00102.0ug/L1.4 5/31/16 AGKo-Xylene 17:23 ^J2.5 EPA 8260C1.3 5.002.51.2ug/L<1.0 5/31/16 AGKStyrene 17:23 ^U2.5 EPA 8260C1.3 5.002.51.0ug/L<1.5 5/31/16 AGKTetrachloroethene 17:23 ^U5.0 EPA 8260C2.5 5.005.01.5ug/L<1.1 5/31/16 AGKToluene 17:23 ^U2.5 EPA 8260C1.3 5.002.51.1ug/L<1.3 5/31/16 AGKtrans-1,2-Dichloroethene 17:23 ^U2.5 EPA 8260C1.3 5.002.51.3ug/L<0.95 5/31/16 AGKtrans-1,3-Dichloropropene 17:23 ^U2.5 EPA 8260C1.3 5.002.50.95ug/L<1.1 5/31/16 AGKTrichloroethene 17:23 ^U2.5 EPA 8260C1.3 5.002.51.1ug/L<1.0 5/31/16 AGKTrichlorofluoromethane 17:23 ^U2.5 EPA 8260C1.3 5.002.51.0ug/L<0.90 5/31/16 AGKVinyl chloride 17:23 ^U2.5 EPA 8260C1.3 5.002.50.90% Recovery97 5/31/16 AGK1,2 Dichloroethane-d4 17:23 EPA 8260C1.0012070% Recovery97 5/31/16 AGKBromofluorobenzene 17:23 EPA 8260C1.0012075% Recovery103 5/31/16 AGKd8-Toluene 17:23 EPA 8260C1.0012085% Recovery99 5/31/16 AGKDibromofluoromethane 17:23 EPA 8260C1.0011585

Qualifiers applying to all Analytes of Method EPA 8081B: V ug/L<0.063 6/7/16 JJY4,4'-DDD 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.063ug/L<0.063 6/7/16 JJY4,4'-DDE 05/27/2016 11:00 13:07 ^U0.42 EPA 8081B0.10 10.000.420.063ug/L<0.073 6/7/16 JJY4,4'-DDT 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.073ug/L<0.063 6/7/16 JJYAldrin 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.063ug/L<0.052 6/7/16 JJYalpha-BHC 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.052ug/L<0.094 6/7/16 JJYalpha-Chlordane 05/27/2016 11:00 13:07 ^U0.42 EPA 8081B0.10 10.000.420.094ug/L<0.094 6/7/16 JJYbeta-BHC 05/27/2016 11:00 13:07 ^U0.42 EPA 8081B0.10 10.000.420.094ug/L<1.1 6/7/16 JJYChlordane (Technical) 05/27/2016 11:00 13:07 ^U6.3 EPA 8081B2.1 10.006.31.1ug/L<0.052 6/7/16 JJYdelta-BHC 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.052

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 5 of 212

Page 102: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 5 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728765

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0850

Analyte

Sample Description: GL-L-02-052516

DODLOD

Client Sample #:

Qualifiers applying to all Analytes of Method EPA 8081B: V ug/L<0.063 6/7/16 JJYDieldrin 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.063ug/L<0.094 Q 6/7/16 JJYEndosulfan I 05/27/2016 11:00 13:07 ^U0.42 EPA 8081B0.10 10.000.420.094ug/L<0.073 6/7/16 JJYEndosulfan II 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.073ug/L<0.063 6/7/16 JJYEndosulfan sulfate 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.063ug/L<0.063 6/7/16 JJYEndrin 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.063ug/L<0.094 6/7/16 JJYEndrin aldehyde 05/27/2016 11:00 13:07 ^U0.42 EPA 8081B0.10 10.000.420.094ug/L<0.073 6/7/16 JJYEndrin ketone 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.073ug/L<0.073 6/7/16 JJYgamma-Chlordane 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.073ug/L0.11 P 6/7/16 JJYHeptachlor 05/27/2016 11:00 13:07 ^J0.25 EPA 8081B0.10 10.000.250.063ug/L<0.073 6/7/16 JJYHeptachlor epoxide 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.073ug/L<0.073 6/7/16 JJYLindane 05/27/2016 11:00 13:07 ^U0.25 EPA 8081B0.10 10.000.250.073ug/L<0.063 6/7/16 JJYMethoxychlor 05/27/2016 11:00 13:07 ^U0.42 EPA 8081B0.10 10.000.420.063ug/L<1.8 6/7/16 JJYToxaphene 05/27/2016 11:00 13:07 ^U6.3 EPA 8081B2.1 10.006.31.8% Recovery249 S 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 11:00 13:07 EPA 8081B10.0014025% Recovery82 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 11:00 13:07 EPA 8081B10.0013530ug/L<0.15 6/1/16 RPN1,1'-Biphenyl 05/27/2016 15:00 19:22U1.0 EPA 8270D0.41 1.001.00.15ug/L<0.18 6/1/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 15:00 19:22U1.0 EPA 8270D0.41 1.001.00.18ug/L<1.1 6/1/16 RPN2,4,5-Trichlorophenol 05/27/2016 15:00 19:22 ^U5.2 EPA 8270D2.1 1.005.21.1ug/L<1.0 6/1/16 RPN2,4,6-Trichlorophenol 05/27/2016 15:00 19:22 ^U5.2 EPA 8270D2.1 1.005.21.0ug/L<1.0 6/1/16 RPN2,4-Dichlorophenol 05/27/2016 15:00 19:22 ^U5.2 EPA 8270D2.1 1.005.21.0ug/L<0.85 6/1/16 RPN2,4-Dimethylphenol 05/27/2016 15:00 19:22 ^U5.2 EPA 8270D2.1 1.005.20.85ug/L<1.5 6/1/16 RPN2,4-Dinitrophenol 05/27/2016 15:00 19:22 ^U10 EPA 8270D5.2 1.00101.5ug/L<0.22 6/1/16 RPN2,4-Dinitrotoluene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.22ug/L<0.29 6/1/16 RPN2,6-Dinitrotoluene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.29ug/L<0.19 6/1/16 RPN2-Chloronaphthalene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.19ug/L<0.90 6/1/16 RPN2-Chlorophenol 05/27/2016 15:00 19:22 ^U5.2 EPA 8270D2.1 1.005.20.90

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 6 of 212

Page 103: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 6 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728765

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0850

Analyte

Sample Description: GL-L-02-052516

DODLOD

Client Sample #:

ug/L0.36 6/1/16 RPN2-Methylnaphthalene 05/27/2016 15:00 19:22 ^J1.0 EPA 8270D0.41 1.001.00.18ug/L<0.89 6/1/16 RPN2-Methylphenol 05/27/2016 15:00 19:22 ^U5.2 EPA 8270D2.1 1.005.20.89ug/L<0.23 6/1/16 RPN2-Nitroaniline 05/27/2016 15:00 19:22 ^U2.1 EPA 8270D0.41 1.002.10.23ug/L<0.93 6/1/16 RPN2-Nitrophenol 05/27/2016 15:00 19:22 ^U5.2 EPA 8270D2.1 1.005.20.93ug/L<1.4 6/1/16 RPN3 & 4-Methylphenol 05/27/2016 15:00 19:22 ^U9.3 EPA 8270D3.7 1.009.31.4ug/L<0.68 6/1/16 RPN3,3'-Dichlorobenzidine 05/27/2016 15:00 19:22 ^U2.6 EPA 8270D1.0 1.002.60.68ug/L<0.27 6/1/16 RPN3-Nitroaniline 05/27/2016 15:00 19:22 ^U2.1 EPA 8270D1.0 1.002.10.27ug/L<1.6 6/1/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 15:00 19:22 ^U10 EPA 8270D2.1 1.00101.6ug/L<0.21 6/1/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 15:00 19:22 ^U2.1 EPA 8270D0.41 1.002.10.21ug/L<0.82 6/1/16 RPN4-Chloro-3-methylphenol 05/27/2016 15:00 19:22 ^U5.2 EPA 8270D2.1 1.005.20.82ug/L<0.12 6/1/16 RPN4-Chloroaniline 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.12ug/L<0.19 6/1/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.19ug/L<0.15 6/1/16 RPN4-Nitroaniline 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.15ug/L<1.1 6/1/16 RPN4-Nitrophenol 05/27/2016 15:00 19:22 ^U10 EPA 8270D5.2 1.00101.1ug/L2.2 6/1/16 RPNAcenaphthene 05/27/2016 15:00 19:22 ^1.0 EPA 8270D0.41 1.001.00.19ug/L<0.18 6/1/16 RPNAcenaphthylene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.18ug/L<0.28 6/1/16 RPNAcetophenone 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.28ug/L0.38 6/1/16 RPNAnthracene 05/27/2016 15:00 19:22 ^J1.0 EPA 8270D0.41 1.001.00.11ug/L<0.27 6/1/16 RPNAtrazine 05/27/2016 15:00 19:22U1.0 EPA 8270D0.41 1.001.00.27ug/L<0.26 6/1/16 RPNBenzaldehyde 05/27/2016 15:00 19:22U1.0 EPA 8270D0.41 1.001.00.26ug/L<0.12 6/1/16 RPNBenzo(a)anthracene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.12ug/L<0.14 6/1/16 RPNBenzo(a)pyrene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.14ug/L<0.18 6/1/16 RPNBenzo(b)fluoranthene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.18ug/L<0.22 6/1/16 RPNBenzo(g,h,i)perylene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.22ug/L<0.21 6/1/16 RPNBenzo(k)fluoranthene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.21ug/L<0.20 6/1/16 RPNBis(2-chloroethoxy)methane 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.20ug/L<0.22 6/1/16 RPNBis(2-chloroethyl)ether 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.22ug/L<0.23 6/1/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.23

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 7 of 212

Page 104: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 7 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728765

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0850

Analyte

Sample Description: GL-L-02-052516

DODLOD

Client Sample #:

ug/L3.0 6/1/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 15:00 19:22 ^2.1 EPA 8270D1.0 1.002.10.45ug/L<0.48 6/1/16 RPNButylbenzylphthalate 05/27/2016 15:00 19:22 ^U2.1 EPA 8270D1.0 1.002.10.48ug/L<0.20 6/1/16 RPNCaprolactam 05/27/2016 15:00 19:22U2.1 EPA 8270D1.0 1.002.10.20ug/L2.6 6/1/16 RPNCarbazole 05/27/2016 15:00 19:22 ^1.0 EPA 8270D0.41 1.001.00.12ug/L<0.16 6/1/16 RPNChrysene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.16ug/L<0.69 6/1/16 RPNDi-n-butylphthalate 05/27/2016 15:00 19:22 ^U4.1 EPA 8270D2.1 1.004.10.69ug/L<0.51 6/1/16 RPNDi-n-octylphthalate 05/27/2016 15:00 19:22 ^U2.1 EPA 8270D1.0 1.002.10.51ug/L<0.18 6/1/16 RPNDibenzo(a,h)anthracene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.18ug/L1.1 6/1/16 RPNDibenzofuran 05/27/2016 15:00 19:22 ^1.0 EPA 8270D0.41 1.001.00.20ug/L<0.46 6/1/16 RPNDiethylphthalate 05/27/2016 15:00 19:22 ^U2.1 EPA 8270D1.0 1.002.10.46ug/L<0.56 6/1/16 RPNDimethylphthalate 05/27/2016 15:00 19:22 ^U2.1 EPA 8270D1.0 1.002.10.56ug/L0.28 6/1/16 RPNFluoranthene 05/27/2016 15:00 19:22 ^J1.0 EPA 8270D0.41 1.001.00.13ug/L1.5 6/1/16 RPNFluorene 05/27/2016 15:00 19:22 ^1.0 EPA 8270D0.41 1.001.00.20ug/L<0.28 6/1/16 RPNHexachlorobenzene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.28ug/L<0.19 6/1/16 RPNHexachlorobutadiene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.19ug/L<0.27 6/1/16 RPNHexachlorocyclopentadiene 05/27/2016 15:00 19:22 ^U2.1 EPA 8270D1.0 1.002.10.27ug/L<0.23 6/1/16 RPNHexachloroethane 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.23ug/L<0.19 6/1/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.19ug/L<0.19 6/1/16 RPNIsophorone 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.19ug/L<0.19 6/1/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.19ug/L0.94 6/1/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 15:00 19:22 ^J2.1 EPA 8270D0.82 1.002.10.37ug/L1.7 6/1/16 RPNNaphthalene 05/27/2016 15:00 19:22 ^1.0 EPA 8270D0.41 1.001.00.19ug/L<0.16 6/1/16 RPNNitrobenzene 05/27/2016 15:00 19:22 ^U1.0 EPA 8270D0.41 1.001.00.16ug/L<1.1 6/1/16 RPNPentachlorophenol 05/27/2016 15:00 19:22 ^U5.2 EPA 8270D2.1 1.005.21.1ug/L0.70 6/1/16 RPNPhenanthrene 05/27/2016 15:00 19:22 ^J1.0 EPA 8270D0.41 1.001.00.31ug/L<0.49 6/1/16 RPNPhenol 05/27/2016 15:00 19:22 ^U5.2 EPA 8270D2.1 1.005.20.49ug/L0.24 6/1/16 RPNPyrene 05/27/2016 15:00 19:22 ^J1.0 EPA 8270D0.41 1.001.00.13% Recovery91 6/1/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 15:00 19:22 ^EPA 8270D1.0012540

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 8 of 212

Page 105: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 8 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728765

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0850

Analyte

Sample Description: GL-L-02-052516

DODLOD

Client Sample #:

% Recovery68 6/1/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 15:00 19:22 ^EPA 8270D1.0011050% Recovery41 6/1/16 RPNSurr: 2-Fluorophenol 05/27/2016 15:00 19:22 ^EPA 8270D1.0011020% Recovery69 6/1/16 RPNSurr: Nitrobenzene-d5 05/27/2016 15:00 19:22 ^EPA 8270D1.0011040% Recovery30 6/1/16 RPNSurr: Phenol-d5 05/27/2016 15:00 19:22 ^EPA 8270D1.0011510% Recovery81 6/1/16 RPNSurr: Terphenyl-d14 05/27/2016 15:00 19:22 ^EPA 8270D1.0013550ug/L<0.12 6/2/16 JJYAroclor-1016 05/27/2016 11:00 15:47U1.0 EPA 8082A0.31 1.001.00.12ug/L<0.089 6/2/16 JJYAroclor-1221 05/27/2016 11:00 15:47U1.0 EPA 8082A0.31 1.001.00.089ug/L<0.15 6/2/16 JJYAroclor-1232 05/27/2016 11:00 15:47U1.0 EPA 8082A0.31 1.001.00.15ug/L0.18 6/2/16 JJYAroclor-1242 05/27/2016 11:00 15:47J1.0 EPA 8082A0.31 1.001.00.10ug/L<0.092 6/2/16 JJYAroclor-1248 05/27/2016 11:00 15:47U1.0 EPA 8082A0.31 1.001.00.092ug/L0.18 6/2/16 JJYAroclor-1254 05/27/2016 11:00 15:47J1.0 EPA 8082A0.31 1.001.00.098ug/L<0.10 6/2/16 JJYAroclor-1260 05/27/2016 11:00 15:47U1.0 EPA 8082A0.31 1.001.00.10ug/L<0.29 6/2/16 JJYAroclor-1262 05/27/2016 11:00 15:47U1.0 EPA 8082A0.31 1.001.00.29ug/L<0.058 6/2/16 JJYAroclor-1268 05/27/2016 11:00 15:47U1.0 EPA 8082A0.31 1.001.00.058% Recovery93 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 11:00 15:47 EPA 8082A1.0013738% Recovery76 6/2/16 JJYSurr: DCBP 05/27/2016 11:00 15:47 EPA 8082A1.0014723

Sub Lab Results

ATTACHED 6/8/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 728767

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0930

Analyte

Sample Description: GL-L-05-052516

DODLOD

Client Sample #:

Inorganic Results

S.U.6.49 6/1/16 SAWpH 14:20 ^0.1 EPA 9040C0.1 1.000.10.1

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 9 of 212

Page 106: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 9 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728767

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0930

Analyte

Sample Description: GL-L-05-052516

DODLOD

Client Sample #:

Metals Results

ug/L5910 6/2/16 NAHTotal Aluminum 05/31/2016 15:00 00:12 ^36 EPA 6010C18 1.00366.0ug/L4.2 6/2/16 NAHTotal Antimony 05/31/2016 15:00 00:12 ^J12 EPA 6010C6.0 1.00122.0ug/L10.6 6/2/16 NAHTotal Arsenic 05/31/2016 15:00 00:12 ^J24 EPA 6010C12 1.00244.0ug/L1260 6/2/16 NAHTotal Barium 05/31/2016 15:00 00:12 ^1.8 EPA 6010C0.90 1.001.80.29ug/L<0.10 6/2/16 NAHTotal Beryllium 05/31/2016 15:00 00:12 ^U0.60 EPA 6010C0.30 1.000.600.10ug/L<0.30 6/2/16 NAHTotal Cadmium 05/31/2016 15:00 00:12 ^U2.0 EPA 6010C1.0 1.002.00.30ug/L181000 6/2/16 NAHTotal Calcium 05/31/2016 15:00 00:12 ^100 EPA 6010C50 1.0010017ug/L46.5 6/2/16 NAHTotal Chromium 05/31/2016 15:00 00:12 ^4.0 EPA 6010C2.0 1.004.00.60ug/L9.6 6/2/16 NAHTotal Cobalt 05/31/2016 15:00 00:12 ^4.0 EPA 6010C2.0 1.004.00.70ug/L62.2 6/2/16 NAHTotal Copper 05/31/2016 15:00 00:12 ^7.0 EPA 6010C3.5 1.007.01.2ug/L89900 6/2/16 NAHTotal Iron 05/31/2016 15:00 00:12 ^100 EPA 6010C50 1.0010016ug/L467 6/2/16 NAHTotal Lead 05/31/2016 15:00 00:12 ^4.0 EPA 6010C2.0 1.004.01.4ug/L117000 6/2/16 NAHTotal Magnesium 05/31/2016 15:00 00:12 ^40 EPA 6010C20 1.00406.0ug/L432 6/2/16 NAHTotal Manganese 05/31/2016 15:00 00:12 ^4.0 EPA 6010C2.0 1.004.00.70ug/L73.6 6/2/16 NAHTotal Nickel 05/31/2016 15:00 00:12 ^6.0 EPA 6010C3.0 1.006.01.0ug/L7.3 6/2/16 NAHTotal Selenium 05/31/2016 15:00 00:12 ^J13 EPA 6010C6.5 1.00132.2ug/L<0.70 6/2/16 NAHTotal Silver 05/31/2016 15:00 00:12 ^U4.0 EPA 6010C2.0 1.004.00.70ug/L<2.5 6/2/16 NAHTotal Thallium 05/31/2016 15:00 00:12 ^U15 EPA 6010C7.5 1.00152.5ug/L5.5 6/2/16 NAHTotal Vanadium 05/31/2016 15:00 00:12 ^5.0 EPA 6010C2.5 1.005.00.80ug/L780 6/2/16 NAHTotal Zinc 05/31/2016 15:00 00:12 ^10 EPA 6010C5.0 1.00101.6ug/L69700 6/2/16 MDSTotal Potassium 05/31/2016 15:00 17:29 ^500 EPA 6010C250 1.0050090ug/L172000 6/2/16 MDSTotal Sodium 05/31/2016 15:00 17:29 ^600 EPA 6010C300 1.00600100ug/L0.32 5/31/16 LJFTotal Mercury 05/27/2016 07:30 09:06 ^0.12 EPA 7470A0.060 1.000.120.030

Organic Results

ug/L<0.21 5/31/16 AGK1,1,1-Trichloroethane 15:24 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.19 5/31/16 AGK1,1,2,2-Tetrachloroethane 15:24 ^U0.50 EPA 8260C0.25 1.000.500.19

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 10 of 212

Page 107: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 10 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728767

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0930

Analyte

Sample Description: GL-L-05-052516

DODLOD

Client Sample #:

ug/L<0.26 5/31/16 AGK1,1,2-Trichloroethane 15:24 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.20 5/31/16 AGK1,1-Dichloroethane 15:24 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.24 5/31/16 AGK1,1-Dichloroethene 15:24 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.30 5/31/16 AGK1,2,3-Trichlorobenzene 15:24 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.30 5/31/16 AGK1,2,4-Trichlorobenzene 15:24 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.40 5/31/16 AGK1,2-Dibromo-3-chloropropane 15:24 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.16 5/31/16 AGK1,2-Dibromoethane 15:24 ^U0.50 EPA 8260C0.25 1.000.500.16ug/L0.37 5/31/16 AGK1,2-Dichlorobenzene 15:24 ^J0.50 EPA 8260C0.25 1.000.500.23ug/L1.1 5/31/16 AGK1,2-Dichloroethane 15:24 ^1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGK1,2-Dichloropropane 15:24 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.26 5/31/16 AGK1,3-Dichlorobenzene 15:24 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.21 5/31/16 AGK1,4-Dichloro-2-butene 15:24U0.50 EPA 8260C0.25 1.000.500.21ug/L170 Q,Z 5/31/16 AGK1,4-Dioxane 15:2425 EPA 8260C13 1.00255.0ug/L<0.50 5/31/16 AGK112Trichloro122trifluoroethane 15:24U1.0 EPA 8260C0.50 1.001.00.50ug/L<2.4 5/31/16 AGK2-Butanone 15:24 ^U5.0 EPA 8260C2.5 1.005.02.4ug/L<4.0 5/31/16 AGK2-Hexanone 15:24 ^U10 EPA 8260C5.0 1.00104.0ug/L<3.0 5/31/16 AGK4-Methyl-2-pentanone 15:24 ^U10 EPA 8260C5.0 1.00103.0ug/L<5.0 5/31/16 AGKAcetone 15:24 ^U10 EPA 8260C5.0 1.00105.0ug/L41 5/31/16 AGKBenzene 15:24 ^0.50 EPA 8260C0.25 1.000.500.19ug/L<0.19 5/31/16 AGKBromochloromethane 15:24 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.20 5/31/16 AGKBromodichloromethane 15:24 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.22 5/31/16 AGKBromoform 15:24 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.50 5/31/16 AGKBromomethane 15:24 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L1.4 5/31/16 AGKCarbon disulfide 15:24 ^1.0 EPA 8260C0.50 1.001.00.50ug/L<0.23 5/31/16 AGKCarbon tetrachloride 15:24 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L13 5/31/16 AGKChlorobenzene 15:24 ^0.50 EPA 8260C0.25 1.000.500.24ug/L<0.40 5/31/16 AGKChloroethane 15:24 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.15 5/31/16 AGKChloroform 15:24 ^U0.50 EPA 8260C0.25 1.000.500.15

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 11 of 212

Page 108: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 11 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728767

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0930

Analyte

Sample Description: GL-L-05-052516

DODLOD

Client Sample #:

ug/L<0.40 5/31/16 AGKChloromethane 15:24 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.25 5/31/16 AGKcis-1,2-Dichloroethene 15:24 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKcis-1,3-Dichloropropene 15:24 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L0.67 5/31/16 AGKCyclohexane 15:24J1.0 EPA 8260C0.50 1.001.00.28ug/L<0.19 5/31/16 AGKDibromochloromethane 15:24 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGKDichlorodifluoromethane 15:24 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L0.81 5/31/16 AGKEthylbenzene 15:24 ^0.50 EPA 8260C0.25 1.000.500.22ug/L6.5 5/31/16 AGKIsopropylbenzene 15:24 ^0.50 EPA 8260C0.25 1.000.500.18ug/L2.9 5/31/16 AGKm & p-Xylene 15:24 ^1.0 EPA 8260C0.50 1.001.00.50ug/L<0.30 5/31/16 AGKMethyl acetate 15:24U1.0 EPA 8260C0.50 1.001.00.30ug/L1.3 5/31/16 AGKMethyl tert-butyl ether 15:24 ^1.0 EPA 8260C0.50 1.001.00.29ug/L0.47 5/31/16 AGKMethylcyclohexane 15:24J0.50 EPA 8260C0.25 1.000.500.23ug/L<0.40 5/31/16 AGKMethylene chloride 15:24 ^U2.0 EPA 8260C0.50 1.002.00.40ug/L1.1 5/31/16 AGKo-Xylene 15:24 ^0.50 EPA 8260C0.25 1.000.500.24ug/L<0.20 5/31/16 AGKStyrene 15:24 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.30 5/31/16 AGKTetrachloroethene 15:24 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L1.4 5/31/16 AGKToluene 15:24 ^0.50 EPA 8260C0.25 1.000.500.22ug/L<0.25 5/31/16 AGKtrans-1,2-Dichloroethene 15:24 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L2.2 5/31/16 AGKtrans-1,3-Dichloropropene 15:24 ^0.50 EPA 8260C0.25 1.000.500.19ug/L<0.21 5/31/16 AGKTrichloroethene 15:24 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.20 5/31/16 AGKTrichlorofluoromethane 15:24 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.18 5/31/16 AGKVinyl chloride 15:24 ^U0.50 EPA 8260C0.25 1.000.500.18% Recovery99 5/31/16 AGK1,2 Dichloroethane-d4 15:24 EPA 8260C1.0012070% Recovery96 5/31/16 AGKBromofluorobenzene 15:24 EPA 8260C1.0012075% Recovery103 5/31/16 AGKd8-Toluene 15:24 EPA 8260C1.0012085% Recovery101 5/31/16 AGKDibromofluoromethane 15:24 EPA 8260C1.0011585

Qualifiers applying to all Analytes of Method EPA 8081B: V

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 12 of 212

Page 109: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 12 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728767

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0930

Analyte

Sample Description: GL-L-05-052516

DODLOD

Client Sample #:

Qualifiers applying to all Analytes of Method EPA 8081B: V ug/L<0.067 6/7/16 JJY4,4'-DDD 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.067ug/L<0.067 6/7/16 JJY4,4'-DDE 05/27/2016 11:00 12:51 ^U0.44 EPA 8081B0.11 10.000.440.067ug/L<0.078 6/7/16 JJY4,4'-DDT 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.078ug/L<0.067 6/7/16 JJYAldrin 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.067ug/L<0.056 6/7/16 JJYalpha-BHC 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.056ug/L<0.10 6/7/16 JJYalpha-Chlordane 05/27/2016 11:00 12:51 ^U0.44 EPA 8081B0.11 10.000.440.10ug/L<0.10 6/7/16 JJYbeta-BHC 05/27/2016 11:00 12:51 ^U0.44 EPA 8081B0.11 10.000.440.10ug/L<1.1 6/7/16 JJYChlordane (Technical) 05/27/2016 11:00 12:51 ^U6.7 EPA 8081B2.2 10.006.71.1ug/L<0.056 6/7/16 JJYdelta-BHC 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.056ug/L<0.067 6/7/16 JJYDieldrin 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.067ug/L<0.10 Q 6/7/16 JJYEndosulfan I 05/27/2016 11:00 12:51 ^U0.44 EPA 8081B0.11 10.000.440.10ug/L<0.078 6/7/16 JJYEndosulfan II 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.078ug/L<0.067 6/7/16 JJYEndosulfan sulfate 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.067ug/L<0.067 6/7/16 JJYEndrin 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.067ug/L<0.10 6/7/16 JJYEndrin aldehyde 05/27/2016 11:00 12:51 ^U0.44 EPA 8081B0.11 10.000.440.10ug/L<0.078 6/7/16 JJYEndrin ketone 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.078ug/L<0.078 6/7/16 JJYgamma-Chlordane 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.078ug/L<0.067 6/7/16 JJYHeptachlor 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.067ug/L<0.078 6/7/16 JJYHeptachlor epoxide 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.078ug/L<0.078 6/7/16 JJYLindane 05/27/2016 11:00 12:51 ^U0.27 EPA 8081B0.11 10.000.270.078ug/L<0.067 6/7/16 JJYMethoxychlor 05/27/2016 11:00 12:51 ^U0.44 EPA 8081B0.11 10.000.440.067ug/L<2.0 6/7/16 JJYToxaphene 05/27/2016 11:00 12:51 ^U6.7 EPA 8081B2.2 10.006.72.0% Recovery110 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 11:00 12:51 EPA 8081B10.0014025% Recovery83 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 11:00 12:51 EPA 8081B10.0013530ug/L<0.17 6/1/16 RPN1,1'-Biphenyl 05/27/2016 15:00 20:29U1.1 EPA 8270D0.44 1.001.10.17ug/L<0.19 6/1/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 15:00 20:29U1.1 EPA 8270D0.44 1.001.10.19

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 13 of 212

Page 110: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 13 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728767

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0930

Analyte

Sample Description: GL-L-05-052516

DODLOD

Client Sample #:

ug/L<1.2 6/1/16 RPN2,4,5-Trichlorophenol 05/27/2016 15:00 20:29 ^U5.6 EPA 8270D2.2 1.005.61.2ug/L<1.1 6/1/16 RPN2,4,6-Trichlorophenol 05/27/2016 15:00 20:29 ^U5.6 EPA 8270D2.2 1.005.61.1ug/L<1.1 6/1/16 RPN2,4-Dichlorophenol 05/27/2016 15:00 20:29 ^U5.6 EPA 8270D2.2 1.005.61.1ug/L<0.91 6/1/16 RPN2,4-Dimethylphenol 05/27/2016 15:00 20:29 ^U5.6 EPA 8270D2.2 1.005.60.91ug/L<1.7 6/1/16 RPN2,4-Dinitrophenol 05/27/2016 15:00 20:29 ^U11 EPA 8270D5.6 1.00111.7ug/L<0.23 6/1/16 RPN2,4-Dinitrotoluene 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.23ug/L<0.31 6/1/16 RPN2,6-Dinitrotoluene 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.31ug/L<0.20 6/1/16 RPN2-Chloronaphthalene 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.20ug/L<0.97 6/1/16 RPN2-Chlorophenol 05/27/2016 15:00 20:29 ^U5.6 EPA 8270D2.2 1.005.60.97ug/L6.5 6/1/16 RPN2-Methylnaphthalene 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.19ug/L<0.96 6/1/16 RPN2-Methylphenol 05/27/2016 15:00 20:29 ^U5.6 EPA 8270D2.2 1.005.60.96ug/L<0.24 6/1/16 RPN2-Nitroaniline 05/27/2016 15:00 20:29 ^U2.2 EPA 8270D0.44 1.002.20.24ug/L<1.0 6/1/16 RPN2-Nitrophenol 05/27/2016 15:00 20:29 ^U5.6 EPA 8270D2.2 1.005.61.0ug/L<1.6 6/1/16 RPN3 & 4-Methylphenol 05/27/2016 15:00 20:29 ^U10 EPA 8270D4.0 1.00101.6ug/L<0.73 6/1/16 RPN3,3'-Dichlorobenzidine 05/27/2016 15:00 20:29 ^U2.8 EPA 8270D1.1 1.002.80.73ug/L<0.29 6/1/16 RPN3-Nitroaniline 05/27/2016 15:00 20:29 ^U2.2 EPA 8270D1.1 1.002.20.29ug/L<1.8 6/1/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 15:00 20:29 ^U11 EPA 8270D2.2 1.00111.8ug/L<0.22 6/1/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 15:00 20:29 ^U2.2 EPA 8270D0.44 1.002.20.22ug/L<0.89 6/1/16 RPN4-Chloro-3-methylphenol 05/27/2016 15:00 20:29 ^U5.6 EPA 8270D2.2 1.005.60.89ug/L<0.13 6/1/16 RPN4-Chloroaniline 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.13ug/L<0.20 6/1/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.20ug/L<0.17 6/1/16 RPN4-Nitroaniline 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.17ug/L<1.2 6/1/16 RPN4-Nitrophenol 05/27/2016 15:00 20:29 ^U11 EPA 8270D5.6 1.00111.2ug/L2.6 6/1/16 RPNAcenaphthene 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.20ug/L<0.19 6/1/16 RPNAcenaphthylene 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.19ug/L<0.30 6/1/16 RPNAcetophenone 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.30ug/L1.4 6/1/16 RPNAnthracene 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.12ug/L<0.29 6/1/16 RPNAtrazine 05/27/2016 15:00 20:29U1.1 EPA 8270D0.44 1.001.10.29

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 14 of 212

Page 111: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 14 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728767

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0930

Analyte

Sample Description: GL-L-05-052516

DODLOD

Client Sample #:

ug/L1.0 6/1/16 RPNBenzaldehyde 05/27/2016 15:00 20:29J1.1 EPA 8270D0.44 1.001.10.28ug/L1.5 6/1/16 RPNBenzo(a)anthracene 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.13ug/L0.98 6/1/16 RPNBenzo(a)pyrene 05/27/2016 15:00 20:29 ^J1.1 EPA 8270D0.44 1.001.10.16ug/L1.2 6/1/16 RPNBenzo(b)fluoranthene 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.19ug/L0.67 6/1/16 RPNBenzo(g,h,i)perylene 05/27/2016 15:00 20:29 ^J1.1 EPA 8270D0.44 1.001.10.23ug/L<0.22 6/1/16 RPNBenzo(k)fluoranthene 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.22ug/L<0.21 6/1/16 RPNBis(2-chloroethoxy)methane 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.21ug/L<0.23 6/1/16 RPNBis(2-chloroethyl)ether 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.23ug/L<0.24 6/1/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.24ug/L51 6/1/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 15:00 20:29 ^2.2 EPA 8270D1.1 1.002.20.49ug/L<0.52 6/1/16 RPNButylbenzylphthalate 05/27/2016 15:00 20:29 ^U2.2 EPA 8270D1.1 1.002.20.52ug/L<0.21 6/1/16 RPNCaprolactam 05/27/2016 15:00 20:29U2.2 EPA 8270D1.1 1.002.20.21ug/L1.6 6/1/16 RPNCarbazole 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.13ug/L2.4 6/1/16 RPNChrysene 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.18ug/L2.0 6/1/16 RPNDi-n-butylphthalate 05/27/2016 15:00 20:29 ^J4.4 EPA 8270D2.2 1.004.40.74ug/L<0.54 6/1/16 RPNDi-n-octylphthalate 05/27/2016 15:00 20:29 ^U2.2 EPA 8270D1.1 1.002.20.54ug/L0.20 6/1/16 RPNDibenzo(a,h)anthracene 05/27/2016 15:00 20:29 ^J1.1 EPA 8270D0.44 1.001.10.19ug/L1.7 6/1/16 RPNDibenzofuran 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.21ug/L<0.50 6/1/16 RPNDiethylphthalate 05/27/2016 15:00 20:29 ^U2.2 EPA 8270D1.1 1.002.20.50ug/L<0.60 6/1/16 RPNDimethylphthalate 05/27/2016 15:00 20:29 ^U2.2 EPA 8270D1.1 1.002.20.60ug/L4.0 6/1/16 RPNFluoranthene 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.14ug/L2.8 6/1/16 RPNFluorene 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.21ug/L<0.30 6/1/16 RPNHexachlorobenzene 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.30ug/L<0.20 6/1/16 RPNHexachlorobutadiene 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.20ug/L<0.29 6/1/16 RPNHexachlorocyclopentadiene 05/27/2016 15:00 20:29 ^U2.2 EPA 8270D1.1 1.002.20.29ug/L<0.24 6/1/16 RPNHexachloroethane 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.24ug/L0.34 6/1/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 15:00 20:29 ^J1.1 EPA 8270D0.44 1.001.10.20ug/L<0.20 6/1/16 RPNIsophorone 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.20

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 15 of 212

Page 112: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 15 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728767

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0930

Analyte

Sample Description: GL-L-05-052516

DODLOD

Client Sample #:

ug/L<0.20 6/1/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.20ug/L6.5 6/1/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 15:00 20:29 ^2.2 EPA 8270D0.89 1.002.20.40ug/L12 6/1/16 RPNNaphthalene 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.20ug/L<0.18 6/1/16 RPNNitrobenzene 05/27/2016 15:00 20:29 ^U1.1 EPA 8270D0.44 1.001.10.18ug/L<1.2 6/1/16 RPNPentachlorophenol 05/27/2016 15:00 20:29 ^U5.6 EPA 8270D2.2 1.005.61.2ug/L9.2 6/1/16 RPNPhenanthrene 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.33ug/L<0.53 6/1/16 RPNPhenol 05/27/2016 15:00 20:29 ^U5.6 EPA 8270D2.2 1.005.60.53ug/L3.6 6/1/16 RPNPyrene 05/27/2016 15:00 20:29 ^1.1 EPA 8270D0.44 1.001.10.14% Recovery87 6/1/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 15:00 20:29 ^EPA 8270D1.0012540% Recovery64 6/1/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 15:00 20:29 ^EPA 8270D1.0011050% Recovery45 6/1/16 RPNSurr: 2-Fluorophenol 05/27/2016 15:00 20:29 ^EPA 8270D1.0011020% Recovery70 6/1/16 RPNSurr: Nitrobenzene-d5 05/27/2016 15:00 20:29 ^EPA 8270D1.0011040% Recovery32 6/1/16 RPNSurr: Phenol-d5 05/27/2016 15:00 20:29 ^EPA 8270D1.0011510% Recovery63 6/1/16 RPNSurr: Terphenyl-d14 05/27/2016 15:00 20:29 ^EPA 8270D1.0013550ug/L<0.13 6/2/16 JJYAroclor-1016 05/27/2016 11:00 16:06U1.1 EPA 8082A0.33 1.001.10.13ug/L<0.094 6/2/16 JJYAroclor-1221 05/27/2016 11:00 16:06U1.1 EPA 8082A0.33 1.001.10.094ug/L<0.16 6/2/16 JJYAroclor-1232 05/27/2016 11:00 16:06U1.1 EPA 8082A0.33 1.001.10.16ug/L0.21 6/2/16 JJYAroclor-1242 05/27/2016 11:00 16:06J1.1 EPA 8082A0.33 1.001.10.11ug/L<0.098 6/2/16 JJYAroclor-1248 05/27/2016 11:00 16:06U1.1 EPA 8082A0.33 1.001.10.098ug/L<0.10 6/2/16 JJYAroclor-1254 05/27/2016 11:00 16:06U1.1 EPA 8082A0.33 1.001.10.10ug/L<0.11 6/2/16 JJYAroclor-1260 05/27/2016 11:00 16:06U1.1 EPA 8082A0.33 1.001.10.11ug/L<0.31 6/2/16 JJYAroclor-1262 05/27/2016 11:00 16:06U1.1 EPA 8082A0.33 1.001.10.31ug/L<0.062 6/2/16 JJYAroclor-1268 05/27/2016 11:00 16:06U1.1 EPA 8082A0.33 1.001.10.062% Recovery93 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 11:00 16:06 EPA 8082A1.0013738% Recovery73 6/2/16 JJYSurr: DCBP 05/27/2016 11:00 16:06 EPA 8082A1.0014723

Sub Lab Results

ATTACHED 6/8/16 SUBHerbicides 00:00 SW81511.00

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 16 of 212

Page 113: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 16 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728767

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0930

Analyte

Sample Description: GL-L-05-052516

DODLOD

Client Sample #:

CT LAB#: 728768

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516

DODLOD

Client Sample #:

Inorganic Results

S.U.7.17 6/1/16 SAWpH 14:20 ^0.1 EPA 9040C0.1 1.000.10.1

Metals Results

ug/L8480 6/2/16 NAHTotal Aluminum 05/31/2016 15:00 00:18 ^36 EPA 6010C18 1.00366.0ug/L<2.0 6/2/16 NAHTotal Antimony 05/31/2016 15:00 00:18 ^U12 EPA 6010C6.0 1.00122.0ug/L4.5 6/2/16 NAHTotal Arsenic 05/31/2016 15:00 00:18 ^J24 EPA 6010C12 1.00244.0ug/L452 6/2/16 NAHTotal Barium 05/31/2016 15:00 00:18 ^1.8 EPA 6010C0.90 1.001.80.29ug/L0.39 6/2/16 NAHTotal Beryllium 05/31/2016 15:00 00:18 ^J0.60 EPA 6010C0.30 1.000.600.10ug/L2.8 6/2/16 NAHTotal Cadmium 05/31/2016 15:00 00:18 ^2.0 EPA 6010C1.0 1.002.00.30ug/L312000 6/2/16 NAHTotal Calcium 05/31/2016 15:00 00:18 ^100 EPA 6010C50 1.0010017ug/L17.8 6/2/16 NAHTotal Chromium 05/31/2016 15:00 00:18 ^4.0 EPA 6010C2.0 1.004.00.60ug/L14.7 6/2/16 NAHTotal Cobalt 05/31/2016 15:00 00:18 ^4.0 EPA 6010C2.0 1.004.00.70ug/L79.5 6/2/16 NAHTotal Copper 05/31/2016 15:00 00:18 ^7.0 EPA 6010C3.5 1.007.01.2ug/L14100 6/2/16 NAHTotal Iron 05/31/2016 15:00 00:18 ^100 EPA 6010C50 1.0010016ug/L60.2 6/2/16 NAHTotal Lead 05/31/2016 15:00 00:18 ^4.0 EPA 6010C2.0 1.004.01.4ug/L116000 6/2/16 NAHTotal Magnesium 05/31/2016 15:00 00:18 ^40 EPA 6010C20 1.00406.0ug/L4650 6/2/16 NAHTotal Manganese 05/31/2016 15:00 00:18 ^4.0 EPA 6010C2.0 1.004.00.70ug/L59.4 6/2/16 NAHTotal Nickel 05/31/2016 15:00 00:18 ^6.0 EPA 6010C3.0 1.006.01.0ug/L8.3 6/2/16 NAHTotal Selenium 05/31/2016 15:00 00:18 ^J13 EPA 6010C6.5 1.00132.2ug/L<0.70 6/2/16 NAHTotal Silver 05/31/2016 15:00 00:18 ^U4.0 EPA 6010C2.0 1.004.00.70ug/L<2.5 6/2/16 NAHTotal Thallium 05/31/2016 15:00 00:18 ^U15 EPA 6010C7.5 1.00152.5ug/L21.1 6/2/16 NAHTotal Vanadium 05/31/2016 15:00 00:18 ^5.0 EPA 6010C2.5 1.005.00.80

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 17 of 212

Page 114: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 17 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728768

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516

DODLOD

Client Sample #:

ug/L465 6/2/16 NAHTotal Zinc 05/31/2016 15:00 00:18 ^10 EPA 6010C5.0 1.00101.6ug/L62800 6/2/16 MDSTotal Potassium 05/31/2016 15:00 17:32 ^500 EPA 6010C250 1.0050090ug/L362000 6/3/16 MDSTotal Sodium 05/31/2016 15:00 08:00 ^1200 EPA 6010C600 2.001200200ug/L<0.030 M 5/31/16 LJFTotal Mercury 05/27/2016 07:30 09:08 ^U0.12 EPA 7470A0.060 1.000.120.030

Organic Results

ug/L<0.21 5/31/16 AGK1,1,1-Trichloroethane 15:54 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.19 5/31/16 AGK1,1,2,2-Tetrachloroethane 15:54 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGK1,1,2-Trichloroethane 15:54 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.20 5/31/16 AGK1,1-Dichloroethane 15:54 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.24 5/31/16 AGK1,1-Dichloroethene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.30 5/31/16 AGK1,2,3-Trichlorobenzene 15:54 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.30 5/31/16 AGK1,2,4-Trichlorobenzene 15:54 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.40 5/31/16 AGK1,2-Dibromo-3-chloropropane 15:54 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.16 5/31/16 AGK1,2-Dibromoethane 15:54 ^U0.50 EPA 8260C0.25 1.000.500.16ug/L<0.23 5/31/16 AGK1,2-Dichlorobenzene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.30 5/31/16 AGK1,2-Dichloroethane 15:54 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGK1,2-Dichloropropane 15:54 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.26 5/31/16 AGK1,3-Dichlorobenzene 15:54 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.21 5/31/16 AGK1,4-Dichloro-2-butene 15:54U0.50 EPA 8260C0.25 1.000.500.21ug/L110 Q,Z 5/31/16 AGK1,4-Dioxane 15:5425 EPA 8260C13 1.00255.0ug/L<0.50 5/31/16 AGK112Trichloro122trifluoroethane 15:54U1.0 EPA 8260C0.50 1.001.00.50ug/L<2.4 5/31/16 AGK2-Butanone 15:54 ^U5.0 EPA 8260C2.5 1.005.02.4ug/L<4.0 5/31/16 AGK2-Hexanone 15:54 ^U10 EPA 8260C5.0 1.00104.0ug/L<3.0 5/31/16 AGK4-Methyl-2-pentanone 15:54 ^U10 EPA 8260C5.0 1.00103.0ug/L<5.0 5/31/16 AGKAcetone 15:54 ^U10 EPA 8260C5.0 1.00105.0ug/L<0.19 5/31/16 AGKBenzene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.19 5/31/16 AGKBromochloromethane 15:54 ^U0.50 EPA 8260C0.25 1.000.500.19

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 18 of 212

Page 115: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 18 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728768

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516

DODLOD

Client Sample #:

ug/L<0.20 5/31/16 AGKBromodichloromethane 15:54 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.22 5/31/16 AGKBromoform 15:54 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.50 5/31/16 AGKBromomethane 15:54 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.50 5/31/16 AGKCarbon disulfide 15:54 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.23 5/31/16 AGKCarbon tetrachloride 15:54 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.24 5/31/16 AGKChlorobenzene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.40 5/31/16 AGKChloroethane 15:54 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.15 5/31/16 AGKChloroform 15:54 ^U0.50 EPA 8260C0.25 1.000.500.15ug/L<0.40 5/31/16 AGKChloromethane 15:54 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.25 5/31/16 AGKcis-1,2-Dichloroethene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKcis-1,3-Dichloropropene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.28 5/31/16 AGKCyclohexane 15:54U1.0 EPA 8260C0.50 1.001.00.28ug/L<0.19 5/31/16 AGKDibromochloromethane 15:54 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGKDichlorodifluoromethane 15:54 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.22 5/31/16 AGKEthylbenzene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.18 5/31/16 AGKIsopropylbenzene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.18ug/L<0.50 5/31/16 AGKm & p-Xylene 15:54 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.30 5/31/16 AGKMethyl acetate 15:54U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.29 5/31/16 AGKMethyl tert-butyl ether 15:54 ^U1.0 EPA 8260C0.50 1.001.00.29ug/L<0.23 5/31/16 AGKMethylcyclohexane 15:54U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.40 5/31/16 AGKMethylene chloride 15:54 ^U2.0 EPA 8260C0.50 1.002.00.40ug/L<0.24 5/31/16 AGKo-Xylene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.20 5/31/16 AGKStyrene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.30 5/31/16 AGKTetrachloroethene 15:54 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGKToluene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.25 5/31/16 AGKtrans-1,2-Dichloroethene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKtrans-1,3-Dichloropropene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.21 5/31/16 AGKTrichloroethene 15:54 ^U0.50 EPA 8260C0.25 1.000.500.21

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 19 of 212

Page 116: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 19 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728768

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516

DODLOD

Client Sample #:

ug/L<0.20 5/31/16 AGKTrichlorofluoromethane 15:54 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.18 5/31/16 AGKVinyl chloride 15:54 ^U0.50 EPA 8260C0.25 1.000.500.18% Recovery100 5/31/16 AGK1,2 Dichloroethane-d4 15:54 EPA 8260C1.0012070% Recovery100 5/31/16 AGKBromofluorobenzene 15:54 EPA 8260C1.0012075% Recovery101 5/31/16 AGKd8-Toluene 15:54 EPA 8260C1.0012085% Recovery102 5/31/16 AGKDibromofluoromethane 15:54 EPA 8260C1.0011585ug/L<0.0067 6/7/16 JJY4,4'-DDD 05/27/2016 11:00 02:47 ^U0.027 EPA 8081B0.011 1.000.0270.0067ug/L<0.0067 6/7/16 JJY4,4'-DDE 05/27/2016 11:00 02:47 ^U0.044 EPA 8081B0.011 1.000.0440.0067ug/L0.014 P 6/7/16 JJY4,4'-DDT 05/27/2016 11:00 02:47 ^J0.027 EPA 8081B0.011 1.000.0270.0078ug/L0.012 P 6/7/16 JJYAldrin 05/27/2016 11:00 02:47 ^J0.027 EPA 8081B0.011 1.000.0270.0067ug/L0.016 6/7/16 JJYalpha-BHC 05/27/2016 11:00 02:47 ^J0.027 EPA 8081B0.011 1.000.0270.0056ug/L<0.010 6/7/16 JJYalpha-Chlordane 05/27/2016 11:00 02:47 ^U0.044 EPA 8081B0.011 1.000.0440.010ug/L<0.010 6/7/16 JJYbeta-BHC 05/27/2016 11:00 02:47 ^U0.044 EPA 8081B0.011 1.000.0440.010ug/L<0.11 6/7/16 JJYChlordane (Technical) 05/27/2016 11:00 02:47 ^U0.67 EPA 8081B0.22 1.000.670.11ug/L<0.0056 6/7/16 JJYdelta-BHC 05/27/2016 11:00 02:47 ^U0.027 EPA 8081B0.011 1.000.0270.0056ug/L0.0089 6/7/16 JJYDieldrin 05/27/2016 11:00 02:47 ^J0.027 EPA 8081B0.011 1.000.0270.0067ug/L<0.010 Q 6/7/16 JJYEndosulfan I 05/27/2016 11:00 02:47 ^U0.044 EPA 8081B0.011 1.000.0440.010ug/L<0.0078 6/7/16 JJYEndosulfan II 05/27/2016 11:00 02:47 ^U0.027 EPA 8081B0.011 1.000.0270.0078ug/L<0.0067 6/7/16 JJYEndosulfan sulfate 05/27/2016 11:00 02:47 ^U0.027 EPA 8081B0.011 1.000.0270.0067ug/L<0.0067 6/7/16 JJYEndrin 05/27/2016 11:00 02:47 ^U0.027 EPA 8081B0.011 1.000.0270.0067ug/L<0.010 6/7/16 JJYEndrin aldehyde 05/27/2016 11:00 02:47 ^U0.044 EPA 8081B0.011 1.000.0440.010ug/L<0.0078 6/7/16 JJYEndrin ketone 05/27/2016 11:00 02:47 ^U0.027 EPA 8081B0.011 1.000.0270.0078ug/L<0.0078 6/7/16 JJYgamma-Chlordane 05/27/2016 11:00 02:47 ^U0.027 EPA 8081B0.011 1.000.0270.0078ug/L<0.0067 6/7/16 JJYHeptachlor 05/27/2016 11:00 02:47 ^U0.027 EPA 8081B0.011 1.000.0270.0067ug/L<0.0078 6/7/16 JJYHeptachlor epoxide 05/27/2016 11:00 02:47 ^U0.027 EPA 8081B0.011 1.000.0270.0078ug/L<0.0078 6/7/16 JJYLindane 05/27/2016 11:00 02:47 ^U0.027 EPA 8081B0.011 1.000.0270.0078ug/L<0.0067 6/7/16 JJYMethoxychlor 05/27/2016 11:00 02:47 ^U0.044 EPA 8081B0.011 1.000.0440.0067ug/L<0.20 6/7/16 JJYToxaphene 05/27/2016 11:00 02:47 ^U0.67 EPA 8081B0.22 1.000.670.20

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 20 of 212

Page 117: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 20 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728768

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516

DODLOD

Client Sample #:

% Recovery70 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 11:00 02:47 EPA 8081B1.0014025% Recovery79 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 11:00 02:47 EPA 8081B1.0013530ug/L<0.16 6/1/16 RPN1,1'-Biphenyl 05/27/2016 15:00 20:51U1.0 EPA 8270D0.42 1.001.00.16ug/L<0.18 6/1/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 15:00 20:51U1.0 EPA 8270D0.42 1.001.00.18ug/L<1.1 6/1/16 RPN2,4,5-Trichlorophenol 05/27/2016 15:00 20:51 ^U5.2 EPA 8270D2.1 1.005.21.1ug/L<1.0 6/1/16 RPN2,4,6-Trichlorophenol 05/27/2016 15:00 20:51 ^U5.2 EPA 8270D2.1 1.005.21.0ug/L<1.0 6/1/16 RPN2,4-Dichlorophenol 05/27/2016 15:00 20:51 ^U5.2 EPA 8270D2.1 1.005.21.0ug/L<0.85 6/1/16 RPN2,4-Dimethylphenol 05/27/2016 15:00 20:51 ^U5.2 EPA 8270D2.1 1.005.20.85ug/L<1.6 6/1/16 RPN2,4-Dinitrophenol 05/27/2016 15:00 20:51 ^U10 EPA 8270D5.2 1.00101.6ug/L<0.22 6/1/16 RPN2,4-Dinitrotoluene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L<0.29 6/1/16 RPN2,6-Dinitrotoluene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.29ug/L<0.19 6/1/16 RPN2-Chloronaphthalene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.91 6/1/16 RPN2-Chlorophenol 05/27/2016 15:00 20:51 ^U5.2 EPA 8270D2.1 1.005.20.91ug/L<0.18 6/1/16 RPN2-Methylnaphthalene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.90 6/1/16 RPN2-Methylphenol 05/27/2016 15:00 20:51 ^U5.2 EPA 8270D2.1 1.005.20.90ug/L<0.23 6/1/16 RPN2-Nitroaniline 05/27/2016 15:00 20:51 ^U2.1 EPA 8270D0.42 1.002.10.23ug/L<0.94 6/1/16 RPN2-Nitrophenol 05/27/2016 15:00 20:51 ^U5.2 EPA 8270D2.1 1.005.20.94ug/L<1.5 6/1/16 RPN3 & 4-Methylphenol 05/27/2016 15:00 20:51 ^U9.4 EPA 8270D3.8 1.009.41.5ug/L<0.69 6/1/16 RPN3,3'-Dichlorobenzidine 05/27/2016 15:00 20:51 ^U2.6 EPA 8270D1.0 1.002.60.69ug/L<0.27 6/1/16 RPN3-Nitroaniline 05/27/2016 15:00 20:51 ^U2.1 EPA 8270D1.0 1.002.10.27ug/L<1.7 6/1/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 15:00 20:51 ^U10 EPA 8270D2.1 1.00101.7ug/L<0.21 6/1/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 15:00 20:51 ^U2.1 EPA 8270D0.42 1.002.10.21ug/L<0.83 6/1/16 RPN4-Chloro-3-methylphenol 05/27/2016 15:00 20:51 ^U5.2 EPA 8270D2.1 1.005.20.83ug/L<0.13 6/1/16 RPN4-Chloroaniline 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.13ug/L<0.19 6/1/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.16 6/1/16 RPN4-Nitroaniline 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.16ug/L<1.1 6/1/16 RPN4-Nitrophenol 05/27/2016 15:00 20:51 ^U10 EPA 8270D5.2 1.00101.1ug/L<0.19 6/1/16 RPNAcenaphthene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.19

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 21 of 212

Page 118: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 21 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728768

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516

DODLOD

Client Sample #:

ug/L<0.18 6/1/16 RPNAcenaphthylene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.28 6/1/16 RPNAcetophenone 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.28ug/L<0.11 6/1/16 RPNAnthracene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.11ug/L<0.27 6/1/16 RPNAtrazine 05/27/2016 15:00 20:51U1.0 EPA 8270D0.42 1.001.00.27ug/L0.89 6/1/16 RPNBenzaldehyde 05/27/2016 15:00 20:51J1.0 EPA 8270D0.42 1.001.00.26ug/L<0.13 6/1/16 RPNBenzo(a)anthracene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.13ug/L<0.15 6/1/16 RPNBenzo(a)pyrene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.15ug/L<0.18 6/1/16 RPNBenzo(b)fluoranthene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.22 6/1/16 RPNBenzo(g,h,i)perylene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L<0.21 6/1/16 RPNBenzo(k)fluoranthene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.21ug/L<0.20 6/1/16 RPNBis(2-chloroethoxy)methane 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.20ug/L<0.22 6/1/16 RPNBis(2-chloroethyl)ether 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L<0.23 6/1/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.23ug/L1.0 6/1/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 15:00 20:51 ^J2.1 EPA 8270D1.0 1.002.10.46ug/L<0.49 6/1/16 RPNButylbenzylphthalate 05/27/2016 15:00 20:51 ^U2.1 EPA 8270D1.0 1.002.10.49ug/L<0.20 6/1/16 RPNCaprolactam 05/27/2016 15:00 20:51U2.1 EPA 8270D1.0 1.002.10.20ug/L<0.13 6/1/16 RPNCarbazole 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.13ug/L0.46 6/1/16 RPNChrysene 05/27/2016 15:00 20:51 ^J1.0 EPA 8270D0.42 1.001.00.17ug/L1.8 6/1/16 RPNDi-n-butylphthalate 05/27/2016 15:00 20:51 ^J4.2 EPA 8270D2.1 1.004.20.70ug/L<0.51 6/1/16 RPNDi-n-octylphthalate 05/27/2016 15:00 20:51 ^U2.1 EPA 8270D1.0 1.002.10.51ug/L<0.18 6/1/16 RPNDibenzo(a,h)anthracene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.20 6/1/16 RPNDibenzofuran 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.20ug/L<0.47 6/1/16 RPNDiethylphthalate 05/27/2016 15:00 20:51 ^U2.1 EPA 8270D1.0 1.002.10.47ug/L<0.56 6/1/16 RPNDimethylphthalate 05/27/2016 15:00 20:51 ^U2.1 EPA 8270D1.0 1.002.10.56ug/L<0.14 6/1/16 RPNFluoranthene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.14ug/L<0.20 6/1/16 RPNFluorene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.20ug/L<0.28 6/1/16 RPNHexachlorobenzene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.28ug/L<0.19 6/1/16 RPNHexachlorobutadiene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.19

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 22 of 212

Page 119: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 22 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728768

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516

DODLOD

Client Sample #:

ug/L<0.27 6/1/16 RPNHexachlorocyclopentadiene 05/27/2016 15:00 20:51 ^U2.1 EPA 8270D1.0 1.002.10.27ug/L<0.23 6/1/16 RPNHexachloroethane 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.23ug/L<0.19 6/1/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.19 6/1/16 RPNIsophorone 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.19 6/1/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.38 6/1/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 15:00 20:51 ^U2.1 EPA 8270D0.83 1.002.10.38ug/L<0.19 6/1/16 RPNNaphthalene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.17 6/1/16 RPNNitrobenzene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.17ug/L<1.1 6/1/16 RPNPentachlorophenol 05/27/2016 15:00 20:51 ^U5.2 EPA 8270D2.1 1.005.21.1ug/L<0.31 6/1/16 RPNPhenanthrene 05/27/2016 15:00 20:51 ^U1.0 EPA 8270D0.42 1.001.00.31ug/L<0.50 6/1/16 RPNPhenol 05/27/2016 15:00 20:51 ^U5.2 EPA 8270D2.1 1.005.20.50ug/L0.14 6/1/16 RPNPyrene 05/27/2016 15:00 20:51 ^J1.0 EPA 8270D0.42 1.001.00.14% Recovery74 6/1/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 15:00 20:51 ^EPA 8270D1.0012540% Recovery56 6/1/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 15:00 20:51 ^EPA 8270D1.0011050% Recovery34 6/1/16 RPNSurr: 2-Fluorophenol 05/27/2016 15:00 20:51 ^EPA 8270D1.0011020% Recovery58 6/1/16 RPNSurr: Nitrobenzene-d5 05/27/2016 15:00 20:51 ^EPA 8270D1.0011040% Recovery24 6/1/16 RPNSurr: Phenol-d5 05/27/2016 15:00 20:51 ^EPA 8270D1.0011510% Recovery67 6/1/16 RPNSurr: Terphenyl-d14 05/27/2016 15:00 20:51 ^EPA 8270D1.0013550ug/L<0.13 6/2/16 JJYAroclor-1016 05/27/2016 11:00 16:26U1.1 EPA 8082A0.33 1.001.10.13ug/L<0.094 6/2/16 JJYAroclor-1221 05/27/2016 11:00 16:26U1.1 EPA 8082A0.33 1.001.10.094ug/L<0.16 6/2/16 JJYAroclor-1232 05/27/2016 11:00 16:26U1.1 EPA 8082A0.33 1.001.10.16ug/L<0.11 6/2/16 JJYAroclor-1242 05/27/2016 11:00 16:26U1.1 EPA 8082A0.33 1.001.10.11ug/L<0.098 6/2/16 JJYAroclor-1248 05/27/2016 11:00 16:26U1.1 EPA 8082A0.33 1.001.10.098ug/L<0.10 6/2/16 JJYAroclor-1254 05/27/2016 11:00 16:26U1.1 EPA 8082A0.33 1.001.10.10ug/L<0.11 6/2/16 JJYAroclor-1260 05/27/2016 11:00 16:26U1.1 EPA 8082A0.33 1.001.10.11ug/L<0.31 6/2/16 JJYAroclor-1262 05/27/2016 11:00 16:26U1.1 EPA 8082A0.33 1.001.10.31ug/L<0.062 6/2/16 JJYAroclor-1268 05/27/2016 11:00 16:26U1.1 EPA 8082A0.33 1.001.10.062% Recovery92 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 11:00 16:26 EPA 8082A1.0013738

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 23 of 212

Page 120: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 23 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728768

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516

DODLOD

Client Sample #:

% Recovery94 6/2/16 JJYSurr: DCBP 05/27/2016 11:00 16:26 EPA 8082A1.0014723

Sub Lab Results

ATTACHED 6/8/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 728769

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516

DODLOD

Client Sample #:

Inorganic Results

%56.4 5/31/16 ABSSolids, Percent 11:100.1 EPA 8000C0.1 1.000.10.1mg/kg50400 6/1/16 JJFTotal Organic Carbon 12:17 ^3200 L-Kahn/9060A1600 1.003200530

Metals Results

mg/kg9530 M 6/1/16 NAHAluminum 05/31/2016 09:00 14:13 ^0.42 EPA 6010C0.21 1.000.420.071mg/kg1.0 6/1/16 NAHAntimony 05/31/2016 09:00 14:13 ^J1.4 EPA 6010C0.71 1.001.40.23mg/kg6.4 6/1/16 NAHArsenic 05/31/2016 09:00 14:13 ^1.4 EPA 6010C0.71 1.001.40.23mg/kg117 Y 6/1/16 NAHBarium 05/31/2016 09:00 14:13 ^0.088 EPA 6010C0.044 1.000.0880.016mg/kg0.27 6/1/16 NAHBeryllium 05/31/2016 09:00 14:13 ^0.071 EPA 6010C0.021 1.000.0710.0071mg/kg0.44 6/1/16 NAHCadmium 05/31/2016 09:00 14:13 ^0.071 EPA 6010C0.035 1.000.0710.011mg/kg42700 6/2/16 NAHCalcium 05/31/2016 09:00 16:11 ^25 EPA 6010C12 10.00254.2mg/kg18.8 6/1/16 NAHChromium 05/31/2016 09:00 14:13 ^0.25 EPA 6010C0.12 1.000.250.041mg/kg9.3 6/1/16 NAHCobalt 05/31/2016 09:00 14:13 ^0.42 EPA 6010C0.21 1.000.420.071mg/kg31.7 6/1/16 NAHCopper 05/31/2016 09:00 14:13 ^0.71 EPA 6010C0.35 1.000.710.12mg/kg19500 M 6/1/16 NAHIron 05/31/2016 09:00 14:13 ^3.2 EPA 6010C1.6 1.003.20.53mg/kg37.9 6/1/16 NAHLead 05/31/2016 09:00 14:13 ^0.44 EPA 6010C0.22 1.000.440.071mg/kg15400 6/1/16 NAHMagnesium 05/31/2016 09:00 14:13 ^1.4 EPA 6010C0.71 1.001.40.25

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 24 of 212

Page 121: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 24 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728769

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516

DODLOD

Client Sample #:

mg/kg427 M 6/1/16 NAHManganese 05/31/2016 09:00 14:13 ^0.26 EPA 6010C0.13 1.000.260.044mg/kg26.6 6/1/16 NAHNickel 05/31/2016 09:00 14:13 ^0.21 EPA 6010C0.11 1.000.210.037mg/kg0.72 6/1/16 NAHSelenium 05/31/2016 09:00 14:13 ^0.71 EPA 6010C0.35 1.000.710.11mg/kg<0.030 6/1/16 NAHSilver 05/31/2016 09:00 14:13 ^U0.18 EPA 6010C0.088 1.000.180.030mg/kg<0.14 M 6/1/16 NAHThallium 05/31/2016 09:00 14:13 ^U0.85 EPA 6010C0.42 1.000.850.14mg/kg22.2 6/1/16 NAHVanadium 05/31/2016 09:00 14:13 ^0.14 EPA 6010C0.071 1.000.140.021mg/kg190 M 6/1/16 NAHZinc 05/31/2016 09:00 14:13 ^0.53 EPA 6010C0.26 1.000.530.088mg/kg2120 6/2/16 MDSPotassium 05/31/2016 09:00 14:08 ^120 EPA 6010C58 1.0012019mg/kg520 6/2/16 MDSSodium 05/31/2016 09:00 14:08 ^42 EPA 6010C21 1.00427.1mg/kg0.11 M 5/31/16 LJFMercury 05/27/2016 12:00 14:13 ^0.016 EPA 7471B0.0080 1.000.0160.0040

Organic ResultsVOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<10 5/29/16 RLD1,1,1-Trichloroethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005210ug/kg<6.3 5/29/16 RLD1,1,2,2-Tetrachloroethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00526.3ug/kg<8.4 5/29/16 RLD1,1,2-Trichloroethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00528.4ug/kg<11 5/29/16 RLD1,1-Dichloroethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005211ug/kg<17 5/29/16 RLD1,1-Dichloroethene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005217ug/kg<8.4 5/29/16 RLD1,2,3-Trichlorobenzene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00528.4ug/kg<9.4 5/29/16 RLD1,2,4-Trichlorobenzene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00529.4ug/kg<13 5/29/16 RLD1,2-Dibromo-3-chloropropane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005213ug/kg<10 5/29/16 RLD1,2-Dibromoethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005210ug/kg<9.4 5/29/16 RLD1,2-Dichlorobenzene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00529.4ug/kg<13 5/29/16 RLD1,2-Dichloroethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005213ug/kg<7.3 5/29/16 RLD1,2-Dichloropropane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00527.3ug/kg<8.4 5/29/16 RLD1,3-Dichlorobenzene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00528.4ug/kg<9.4 5/29/16 RLD1,4-Dichloro-2-butene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00529.4

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 25 of 212

Page 122: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 25 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728769

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516

DODLOD

Client Sample #:

VOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<420 5/29/16 RLD1,4-Dioxane 05/25/2016 16:20 13:16 ^U5200 EPA 8260C1000 1.005200420ug/kg<21 5/29/16 RLD112Trichloro122trifluoroethane 05/25/2016 16:20 13:16 ^U100 EPA 8260C42 1.0010021ug/kg<100 5/29/16 RLD2-Butanone 05/25/2016 16:20 13:16 ^U520 EPA 8260C210 1.00520100ug/kg<71 5/29/16 RLD2-Hexanone 05/25/2016 16:20 13:16 ^U520 EPA 8260C210 1.0052071ug/kg<86 5/29/16 RLD4-Methyl-2-pentanone 05/25/2016 16:20 13:16 ^U520 EPA 8260C210 1.0052086ug/kg74.5 5/29/16 RLDAcetone 05/25/2016 16:20 13:16 ^J520 EPA 8260C210 1.0052066ug/kg<5.2 5/29/16 RLDBenzene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00525.2ug/kg<8.4 5/29/16 RLDBromochloromethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00528.4ug/kg<9.4 5/29/16 RLDBromodichloromethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00529.4ug/kg<6.3 5/29/16 RLDBromoform 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00526.3ug/kg<31 5/29/16 RLDBromomethane 05/25/2016 16:20 13:16 ^U100 EPA 8260C52 1.0010031ug/kg<16 5/29/16 RLDCarbon disulfide 05/25/2016 16:20 13:16 ^U100 EPA 8260C42 1.0010016ug/kg<11 5/29/16 RLDCarbon tetrachloride 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005211ug/kg<8.4 5/29/16 RLDChlorobenzene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00528.4ug/kg<20 5/29/16 RLDChloroethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005220ug/kg<9.4 5/29/16 RLDChloroform 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00529.4ug/kg<26 5/29/16 RLDChloromethane 05/25/2016 16:20 13:16 ^U100 EPA 8260C52 1.0010026ug/kg<10 5/29/16 RLDcis-1,2-Dichloroethene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005210ug/kg<10 5/29/16 RLDcis-1,3-Dichloropropene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005210ug/kg<13 5/29/16 RLDCyclohexane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005213ug/kg<8.4 5/29/16 RLDDibromochloromethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00528.4ug/kg<14 5/29/16 RLDDichlorodifluoromethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005214ug/kg<8.4 5/29/16 RLDEthylbenzene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00528.4ug/kg<8.4 5/29/16 RLDIsopropylbenzene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00528.4ug/kg<19 5/29/16 RLDm & p-Xylene 05/25/2016 16:20 13:16 ^U100 EPA 8260C42 1.0010019ug/kg324 5/29/16 RLDMethyl acetate 05/25/2016 16:20 13:16 ^52 EPA 8260C21 1.005213

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 26 of 212

Page 123: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 26 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728769

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516

DODLOD

Client Sample #:

VOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<29 5/29/16 RLDMethyl tert-butyl ether 05/25/2016 16:20 13:16 ^U100 EPA 8260C52 1.0010029ug/kg<9.4 5/29/16 RLDMethylcyclohexane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00529.4ug/kg<42 5/29/16 RLDMethylene chloride 05/25/2016 16:20 13:16 ^U100 EPA 8260C52 1.0010042ug/kg<8.4 5/29/16 RLDo-Xylene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00528.4ug/kg<6.3 5/29/16 RLDStyrene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00526.3ug/kg<8.4 5/29/16 RLDTetrachloroethene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00528.4ug/kg<7.3 5/29/16 RLDToluene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00527.3ug/kg<11 5/29/16 RLDtrans-1,2-Dichloroethene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005211ug/kg<7.3 5/29/16 RLDtrans-1,3-Dichloropropene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.00527.3ug/kg<10 5/29/16 RLDTrichloroethene 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005210ug/kg<14 5/29/16 RLDTrichlorofluoromethane 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005214ug/kg<15 5/29/16 RLDVinyl chloride 05/25/2016 16:20 13:16 ^U52 EPA 8260C21 1.005215% Recovery101 5/29/16 RLD1,2 Dichloroethane-d4 05/25/2016 16:20 13:16 EPA 8260C1.0011780% Recovery102 5/29/16 RLDBromofluorobenzene 05/25/2016 16:20 13:16 EPA 8260C1.0012085% Recovery102 5/29/16 RLDd8-Toluene 05/25/2016 16:20 13:16 EPA 8260C1.0011585% Recovery101 5/29/16 RLDDibromofluoromethane 05/25/2016 16:20 13:16 EPA 8260C1.0011879ug/kg58.3 P 6/9/16 JJY4,4'-DDD 05/27/2016 14:00 17:12 ^35 EPA 8081B18 10.00355.3ug/kg17.7 P 6/9/16 JJY4,4'-DDE 05/27/2016 14:00 17:12 ^J35 EPA 8081B18 10.00355.3ug/kg15.9 P 6/9/16 JJY4,4'-DDT 05/27/2016 14:00 17:12 ^J35 EPA 8081B18 10.00358.8ug/kg<8.8 6/9/16 JJYAldrin 05/27/2016 14:00 17:12 ^U35 EPA 8081B18 10.00358.8ug/kg<11 6/9/16 JJYalpha-BHC 05/27/2016 14:00 17:12 ^U71 EPA 8081B35 10.007111ug/kg<5.3 Q 6/9/16 JJYalpha-Chlordane 05/27/2016 14:00 17:12 ^U35 EPA 8081B18 10.00355.3ug/kg<11 6/9/16 JJYbeta-BHC 05/27/2016 14:00 17:12 ^U71 EPA 8081B35 10.007111ug/kg<88 6/9/16 JJYChlordane (Technical) 05/27/2016 14:00 17:12 ^U710 EPA 8081B350 10.0071088ug/kg<5.3 6/9/16 JJYdelta-BHC 05/27/2016 14:00 17:12 ^U35 EPA 8081B18 10.00355.3ug/kg12.4 P 6/9/16 JJYDieldrin 05/27/2016 14:00 17:12 ^J35 EPA 8081B18 10.00355.3

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 27 of 212

Page 124: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 27 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728769

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516

DODLOD

Client Sample #:

ug/kg<12 6/9/16 JJYEndosulfan I 05/27/2016 14:00 17:12 ^U71 EPA 8081B35 10.007112ug/kg<5.3 6/9/16 JJYEndosulfan II 05/27/2016 14:00 17:12 ^U35 EPA 8081B18 10.00355.3ug/kg<16 6/9/16 JJYEndosulfan sulfate 05/27/2016 14:00 17:12 ^U71 EPA 8081B35 10.007116ug/kg<7.1 6/9/16 JJYEndrin 05/27/2016 14:00 17:12 ^U35 EPA 8081B18 10.00357.1ug/kg<19 6/9/16 JJYEndrin aldehyde 05/27/2016 14:00 17:12 ^U71 EPA 8081B35 10.007119ug/kg<14 6/9/16 JJYEndrin ketone 05/27/2016 14:00 17:12 ^U71 EPA 8081B35 10.007114ug/kg<5.3 6/9/16 JJYgamma-Chlordane 05/27/2016 14:00 17:12 ^U35 EPA 8081B18 10.00355.3ug/kg<7.1 6/9/16 JJYHeptachlor 05/27/2016 14:00 17:12 ^U35 EPA 8081B18 10.00357.1ug/kg<8.8 6/9/16 JJYHeptachlor epoxide 05/27/2016 14:00 17:12 ^U35 EPA 8081B18 10.00358.8ug/kg17.7 P 6/9/16 JJYLindane 05/27/2016 14:00 17:12 ^J35 EPA 8081B18 10.00358.8ug/kg<12 6/9/16 JJYMethoxychlor 05/27/2016 14:00 17:12 ^U71 EPA 8081B35 10.007112ug/kg<160 6/9/16 JJYToxaphene 05/27/2016 14:00 17:12 ^U710 EPA 8081B350 10.00710160% Recovery123 6/9/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 14:00 17:12 EPA 8081B10.0012570% Recovery95 6/9/16 JJYSURR:Decachlorobiphenyl 05/27/2016 14:00 17:12 EPA 8081B10.0013055ug/kg<25 6/2/16 RPN1,1'-Biphenyl 05/27/2016 14:00 18:27U210 EPA 8270D110 1.0021025ug/kg<39 6/2/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 14:00 18:27U210 EPA 8270D110 1.0021039ug/kg<230 6/2/16 RPN2,4,5-Trichlorophenol 05/27/2016 14:00 18:27 ^U1100 EPA 8270D530 1.001100230ug/kg<230 6/2/16 RPN2,4,6-Trichlorophenol 05/27/2016 14:00 18:27 ^U1100 EPA 8270D530 1.001100230ug/kg<210 6/2/16 RPN2,4-Dichlorophenol 05/27/2016 14:00 18:27 ^U1100 EPA 8270D530 1.001100210ug/kg<180 6/2/16 RPN2,4-Dimethylphenol 05/27/2016 14:00 18:27 ^U1100 EPA 8270D530 1.001100180ug/kg<480 6/2/16 RPN2,4-Dinitrophenol 05/27/2016 14:00 18:27 ^U1800 EPA 8270D1100 1.001800480ug/kg<43 6/2/16 RPN2,4-Dinitrotoluene 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021043ug/kg<43 6/2/16 RPN2,6-Dinitrotoluene 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021043ug/kg<41 6/2/16 RPN2-Chloronaphthalene 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021041ug/kg<600 6/2/16 RPN2-Chlorophenol 05/27/2016 14:00 18:27 ^U3600 EPA 8270D1100 1.003600600ug/kg67.5 6/2/16 RPN2-Methylnaphthalene 05/27/2016 14:00 18:27 ^J210 EPA 8270D110 1.0021044ug/kg<750 6/2/16 RPN2-Methylphenol 05/27/2016 14:00 18:27 ^U3600 EPA 8270D1100 1.003600750ug/kg<41 6/2/16 RPN2-Nitroaniline 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021041

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 28 of 212

Page 125: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 28 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728769

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516

DODLOD

Client Sample #:

ug/kg<500 6/2/16 RPN2-Nitrophenol 05/27/2016 14:00 18:27 ^U1800 EPA 8270D530 1.001800500ug/kg<1200 6/2/16 RPN3 & 4-Methylphenol 05/27/2016 14:00 18:27 ^U6400 EPA 8270D1900 1.0064001200ug/kg<270 6/2/16 RPN3,3'-Dichlorobenzidine 05/27/2016 14:00 18:27 ^U890 EPA 8270D270 1.00890270ug/kg<39 6/2/16 RPN3-Nitroaniline 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021039ug/kg<480 6/2/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 14:00 18:27 ^U1800 EPA 8270D530 1.001800480ug/kg<44 6/2/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021044ug/kg<680 6/2/16 RPN4-Chloro-3-methylphenol 05/27/2016 14:00 18:27 ^U3600 EPA 8270D1100 1.003600680ug/kg<69 6/2/16 RPN4-Chloroaniline 05/27/2016 14:00 18:27 ^U360 EPA 8270D110 1.0036069ug/kg<46 6/2/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021046ug/kg<53 6/2/16 RPN4-Nitroaniline 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021053ug/kg<710 6/2/16 RPN4-Nitrophenol 05/27/2016 14:00 18:27 ^U3600 EPA 8270D1100 1.003600710ug/kg<43 6/2/16 RPNAcenaphthene 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021043ug/kg<43 6/2/16 RPNAcenaphthylene 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021043ug/kg<130 6/2/16 RPNAcetophenone 05/27/2016 14:00 18:27 ^U710 EPA 8270D210 1.00710130ug/kg121 6/2/16 RPNAnthracene 05/27/2016 14:00 18:27 ^J210 EPA 8270D110 1.0021043ug/kg<25 6/2/16 RPNAtrazine 05/27/2016 14:00 18:27U210 EPA 8270D110 1.0021025ug/kg558 6/2/16 RPNBenzaldehyde 05/27/2016 14:00 18:27210 EPA 8270D110 1.0021034ug/kg355 6/2/16 RPNBenzo(a)anthracene 05/27/2016 14:00 18:27 ^210 EPA 8270D110 1.0021044ug/kg311 6/2/16 RPNBenzo(a)pyrene 05/27/2016 14:00 18:27 ^210 EPA 8270D110 1.0021041ug/kg517 6/2/16 RPNBenzo(b)fluoranthene 05/27/2016 14:00 18:27 ^210 EPA 8270D110 1.0021044ug/kg215 6/2/16 RPNBenzo(g,h,i)perylene 05/27/2016 14:00 18:27 ^210 EPA 8270D110 1.0021039ug/kg155 6/2/16 RPNBenzo(k)fluoranthene 05/27/2016 14:00 18:27 ^J210 EPA 8270D110 1.0021044ug/kg<41 6/2/16 RPNBis(2-chloroethoxy)methane 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021041ug/kg<44 6/2/16 RPNBis(2-chloroethyl)ether 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021044ug/kg<53 6/2/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021053ug/kg263 6/2/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 14:00 18:27 ^J710 EPA 8270D210 1.00710150ug/kg142 6/2/16 RPNButylbenzylphthalate 05/27/2016 14:00 18:27 ^J710 EPA 8270D210 1.00710130ug/kg<130 6/2/16 RPNCaprolactam 05/27/2016 14:00 18:27U710 EPA 8270D210 1.00710130

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 29 of 212

Page 126: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 29 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728769

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516

DODLOD

Client Sample #:

ug/kg53.3 6/2/16 RPNCarbazole 05/27/2016 14:00 18:27 ^J210 EPA 8270D110 1.0021050ug/kg441 6/2/16 RPNChrysene 05/27/2016 14:00 18:27 ^210 EPA 8270D110 1.0021044ug/kg430 6/2/16 RPNDi-n-butylphthalate 05/27/2016 14:00 18:27 ^J710 EPA 8270D210 1.00710140ug/kg<100 6/2/16 RPNDi-n-octylphthalate 05/27/2016 14:00 18:27 ^U360 EPA 8270D110 1.00360100ug/kg85.3 6/2/16 RPNDibenzo(a,h)anthracene 05/27/2016 14:00 18:27 ^J210 EPA 8270D110 1.0021039ug/kg<43 6/2/16 RPNDibenzofuran 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021043ug/kg<110 6/2/16 RPNDiethylphthalate 05/27/2016 14:00 18:27 ^U710 EPA 8270D210 1.00710110ug/kg<110 6/2/16 RPNDimethylphthalate 05/27/2016 14:00 18:27 ^U710 EPA 8270D210 1.00710110ug/kg714 6/2/16 RPNFluoranthene 05/27/2016 14:00 18:27 ^210 EPA 8270D110 1.0021046ug/kg<44 6/2/16 RPNFluorene 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021044ug/kg<50 6/2/16 RPNHexachlorobenzene 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021050ug/kg<110 6/2/16 RPNHexachlorobutadiene 05/27/2016 14:00 18:27 ^U710 EPA 8270D210 1.00710110ug/kg<92 Q 6/2/16 RPNHexachlorocyclopentadiene 05/27/2016 14:00 18:27 ^U360 EPA 8270D210 1.0036092ug/kg<59 6/2/16 RPNHexachloroethane 05/27/2016 14:00 18:27 ^U210 EPA 8270D110 1.0021059ug/kg165 6/2/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 14:00 18:27 ^J210 EPA 8270D110 1.0021041ug/kg<89 6/2/16 RPNIsophorone 05/27/2016 14:00 18:27 ^U360 EPA 8270D110 1.0036089ug/kg<120 6/2/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 14:00 18:27 ^U710 EPA 8270D210 1.00710120ug/kg<89 6/2/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 14:00 18:27 ^U430 EPA 8270D210 1.0043089ug/kg60.4 6/2/16 RPNNaphthalene 05/27/2016 14:00 18:27 ^J210 EPA 8270D110 1.0021037ug/kg<100 6/2/16 RPNNitrobenzene 05/27/2016 14:00 18:27 ^U360 EPA 8270D110 1.00360100ug/kg<430 6/2/16 RPNPentachlorophenol 05/27/2016 14:00 18:27 ^U1800 EPA 8270D530 1.001800430ug/kg407 6/2/16 RPNPhenanthrene 05/27/2016 14:00 18:27 ^210 EPA 8270D110 1.0021046ug/kg<280 6/2/16 RPNPhenol 05/27/2016 14:00 18:27 ^U1100 EPA 8270D530 1.001100280ug/kg593 6/2/16 RPNPyrene 05/27/2016 14:00 18:27 ^210 EPA 8270D110 1.0021046% Recovery66 6/2/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 14:00 18:27 ^EPA 8270D1.0012535% Recovery72 6/2/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 14:00 18:27 ^EPA 8270D1.0010545% Recovery64 6/2/16 RPNSurr: 2-Fluorophenol 05/27/2016 14:00 18:27 ^EPA 8270D1.0010535% Recovery77 6/2/16 RPNSurr: Nitrobenzene-d5 05/27/2016 14:00 18:27 ^EPA 8270D1.0010035

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 30 of 212

Page 127: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 30 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728769

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516

DODLOD

Client Sample #:

% Recovery65 6/2/16 RPNSurr: Phenol-d5 05/27/2016 14:00 18:27 ^EPA 8270D1.0010040% Recovery73 6/2/16 RPNSurr: Terphenyl-d14 05/27/2016 14:00 18:27 ^EPA 8270D1.0012530ug/kg<8.9 6/2/16 JJYAroclor-1016 05/27/2016 14:00 21:35U53 EPA 8082A36 1.00538.9ug/kg<12 6/2/16 JJYAroclor-1221 05/27/2016 14:00 21:35U53 EPA 8082A36 1.005312ug/kg<16 6/2/16 JJYAroclor-1232 05/27/2016 14:00 21:35U53 EPA 8082A36 1.005316ug/kg<12 6/2/16 JJYAroclor-1242 05/27/2016 14:00 21:35U53 EPA 8082A36 1.005312ug/kg85.5 P 6/2/16 JJYAroclor-1248 05/27/2016 14:00 21:3553 EPA 8082A36 1.005312ug/kg143 6/2/16 JJYAroclor-1254 05/27/2016 14:00 21:3553 EPA 8082A36 1.005316ug/kg60.6 6/2/16 JJYAroclor-1260 05/27/2016 14:00 21:3553 EPA 8082A36 1.005311ug/kg<12 6/2/16 JJYAroclor-1262 05/27/2016 14:00 21:35U53 EPA 8082A36 1.005312ug/kg<8.9 6/2/16 JJYAroclor-1268 05/27/2016 14:00 21:35U53 EPA 8082A36 1.00538.9% Recovery108 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 14:00 21:35 EPA 8082A1.0013554% Recovery87 6/2/16 JJYSurr: DCBP 05/27/2016 14:00 21:35 EPA 8082A1.0014154

Sub Lab Results

ATTACHED 6/8/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 728770

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516-DUP

DODLOD

Client Sample #:

Inorganic Results

S.U.7.26 6/1/16 SAWpH 14:20 ^0.1 EPA 9040C0.1 1.000.10.1

Metals Results

ug/L24600 6/2/16 NAHTotal Aluminum 05/31/2016 15:00 00:25 ^36 EPA 6010C18 1.00366.0ug/L<2.0 6/2/16 NAHTotal Antimony 05/31/2016 15:00 00:25 ^U12 EPA 6010C6.0 1.00122.0

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 31 of 212

Page 128: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 31 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728770

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516-DUP

DODLOD

Client Sample #:

ug/L14.0 6/2/16 NAHTotal Arsenic 05/31/2016 15:00 00:25 ^J24 EPA 6010C12 1.00244.0ug/L722 6/2/16 NAHTotal Barium 05/31/2016 15:00 00:25 ^1.8 EPA 6010C0.90 1.001.80.29ug/L1.0 6/2/16 NAHTotal Beryllium 05/31/2016 15:00 00:25 ^0.60 EPA 6010C0.30 1.000.600.10ug/L5.2 6/2/16 NAHTotal Cadmium 05/31/2016 15:00 00:25 ^2.0 EPA 6010C1.0 1.002.00.30ug/L497000 6/2/16 NAHTotal Calcium 05/31/2016 15:00 00:25 ^100 EPA 6010C50 1.0010017ug/L45.9 6/2/16 NAHTotal Chromium 05/31/2016 15:00 00:25 ^4.0 EPA 6010C2.0 1.004.00.60ug/L32.4 6/2/16 NAHTotal Cobalt 05/31/2016 15:00 00:25 ^4.0 EPA 6010C2.0 1.004.00.70ug/L164 6/2/16 NAHTotal Copper 05/31/2016 15:00 00:25 ^7.0 EPA 6010C3.5 1.007.01.2ug/L42500 6/2/16 NAHTotal Iron 05/31/2016 15:00 00:25 ^100 EPA 6010C50 1.0010016ug/L127 6/2/16 NAHTotal Lead 05/31/2016 15:00 00:25 ^4.0 EPA 6010C2.0 1.004.01.4ug/L154000 6/2/16 NAHTotal Magnesium 05/31/2016 15:00 00:25 ^40 EPA 6010C20 1.00406.0ug/L7830 6/2/16 NAHTotal Manganese 05/31/2016 15:00 00:25 ^4.0 EPA 6010C2.0 1.004.00.70ug/L110 6/2/16 NAHTotal Nickel 05/31/2016 15:00 00:25 ^6.0 EPA 6010C3.0 1.006.01.0ug/L13.2 6/2/16 NAHTotal Selenium 05/31/2016 15:00 00:25 ^13 EPA 6010C6.5 1.00132.2ug/L<0.70 6/2/16 NAHTotal Silver 05/31/2016 15:00 00:25 ^U4.0 EPA 6010C2.0 1.004.00.70ug/L<2.5 6/2/16 NAHTotal Thallium 05/31/2016 15:00 00:25 ^U15 EPA 6010C7.5 1.00152.5ug/L59.5 6/2/16 NAHTotal Vanadium 05/31/2016 15:00 00:25 ^5.0 EPA 6010C2.5 1.005.00.80ug/L996 6/2/16 NAHTotal Zinc 05/31/2016 15:00 00:25 ^10 EPA 6010C5.0 1.00101.6ug/L72600 6/3/16 MDSTotal Potassium 05/31/2016 15:00 08:03 ^1000 EPA 6010C500 2.001000180ug/L254000 6/3/16 MDSTotal Sodium 05/31/2016 15:00 08:03 ^1200 EPA 6010C600 2.001200200ug/L0.067 5/31/16 LJFTotal Mercury 05/27/2016 07:30 09:17 ^J0.12 EPA 7470A0.060 1.000.120.030

Organic Results

ug/L<0.21 5/31/16 AGK1,1,1-Trichloroethane 16:24 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.19 5/31/16 AGK1,1,2,2-Tetrachloroethane 16:24 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGK1,1,2-Trichloroethane 16:24 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.20 5/31/16 AGK1,1-Dichloroethane 16:24 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.24 5/31/16 AGK1,1-Dichloroethene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.24

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 32 of 212

Page 129: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 32 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728770

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516-DUP

DODLOD

Client Sample #:

ug/L<0.30 5/31/16 AGK1,2,3-Trichlorobenzene 16:24 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.30 5/31/16 AGK1,2,4-Trichlorobenzene 16:24 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.40 5/31/16 AGK1,2-Dibromo-3-chloropropane 16:24 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.16 5/31/16 AGK1,2-Dibromoethane 16:24 ^U0.50 EPA 8260C0.25 1.000.500.16ug/L<0.23 5/31/16 AGK1,2-Dichlorobenzene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.30 5/31/16 AGK1,2-Dichloroethane 16:24 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGK1,2-Dichloropropane 16:24 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.26 5/31/16 AGK1,3-Dichlorobenzene 16:24 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.21 5/31/16 AGK1,4-Dichloro-2-butene 16:24U0.50 EPA 8260C0.25 1.000.500.21ug/L100 Q,Z 5/31/16 AGK1,4-Dioxane 16:2425 EPA 8260C13 1.00255.0ug/L<0.50 5/31/16 AGK112Trichloro122trifluoroethane 16:24U1.0 EPA 8260C0.50 1.001.00.50ug/L<2.4 5/31/16 AGK2-Butanone 16:24 ^U5.0 EPA 8260C2.5 1.005.02.4ug/L<4.0 5/31/16 AGK2-Hexanone 16:24 ^U10 EPA 8260C5.0 1.00104.0ug/L<3.0 5/31/16 AGK4-Methyl-2-pentanone 16:24 ^U10 EPA 8260C5.0 1.00103.0ug/L<5.0 5/31/16 AGKAcetone 16:24 ^U10 EPA 8260C5.0 1.00105.0ug/L<0.19 5/31/16 AGKBenzene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.19 5/31/16 AGKBromochloromethane 16:24 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.20 5/31/16 AGKBromodichloromethane 16:24 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.22 5/31/16 AGKBromoform 16:24 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.50 5/31/16 AGKBromomethane 16:24 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.50 5/31/16 AGKCarbon disulfide 16:24 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.23 5/31/16 AGKCarbon tetrachloride 16:24 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.24 5/31/16 AGKChlorobenzene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.40 5/31/16 AGKChloroethane 16:24 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.15 5/31/16 AGKChloroform 16:24 ^U0.50 EPA 8260C0.25 1.000.500.15ug/L<0.40 5/31/16 AGKChloromethane 16:24 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.25 5/31/16 AGKcis-1,2-Dichloroethene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKcis-1,3-Dichloropropene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.19

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 33 of 212

Page 130: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 33 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728770

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516-DUP

DODLOD

Client Sample #:

ug/L<0.28 5/31/16 AGKCyclohexane 16:24U1.0 EPA 8260C0.50 1.001.00.28ug/L<0.19 5/31/16 AGKDibromochloromethane 16:24 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGKDichlorodifluoromethane 16:24 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.22 5/31/16 AGKEthylbenzene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.18 5/31/16 AGKIsopropylbenzene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.18ug/L<0.50 5/31/16 AGKm & p-Xylene 16:24 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.30 5/31/16 AGKMethyl acetate 16:24U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.29 5/31/16 AGKMethyl tert-butyl ether 16:24 ^U1.0 EPA 8260C0.50 1.001.00.29ug/L<0.23 5/31/16 AGKMethylcyclohexane 16:24U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.40 5/31/16 AGKMethylene chloride 16:24 ^U2.0 EPA 8260C0.50 1.002.00.40ug/L<0.24 5/31/16 AGKo-Xylene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.20 5/31/16 AGKStyrene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.30 5/31/16 AGKTetrachloroethene 16:24 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGKToluene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.25 5/31/16 AGKtrans-1,2-Dichloroethene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKtrans-1,3-Dichloropropene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.21 5/31/16 AGKTrichloroethene 16:24 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.20 5/31/16 AGKTrichlorofluoromethane 16:24 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.18 5/31/16 AGKVinyl chloride 16:24 ^U0.50 EPA 8260C0.25 1.000.500.18% Recovery91 5/31/16 AGK1,2 Dichloroethane-d4 16:24 EPA 8260C1.0012070% Recovery96 5/31/16 AGKBromofluorobenzene 16:24 EPA 8260C1.0012075% Recovery103 5/31/16 AGKd8-Toluene 16:24 EPA 8260C1.0012085% Recovery104 5/31/16 AGKDibromofluoromethane 16:24 EPA 8260C1.0011585ug/L0.068 P 6/7/16 JJY4,4'-DDD 05/27/2016 11:00 03:03 ^0.025 EPA 8081B0.010 1.000.0250.0062ug/L<0.0062 6/7/16 JJY4,4'-DDE 05/27/2016 11:00 03:03 ^U0.041 EPA 8081B0.010 1.000.0410.0062ug/L0.064 P 6/7/16 JJY4,4'-DDT 05/27/2016 11:00 03:03 ^0.025 EPA 8081B0.010 1.000.0250.0072ug/L0.0093 P 6/7/16 JJYAldrin 05/27/2016 11:00 03:03 ^J0.025 EPA 8081B0.010 1.000.0250.0062ug/L0.026 P 6/7/16 JJYalpha-BHC 05/27/2016 11:00 03:03 ^0.025 EPA 8081B0.010 1.000.0250.0052

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 34 of 212

Page 131: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 34 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728770

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516-DUP

DODLOD

Client Sample #:

ug/L<0.0093 6/7/16 JJYalpha-Chlordane 05/27/2016 11:00 03:03 ^U0.041 EPA 8081B0.010 1.000.0410.0093ug/L<0.0093 6/7/16 JJYbeta-BHC 05/27/2016 11:00 03:03 ^U0.041 EPA 8081B0.010 1.000.0410.0093ug/L<0.11 6/7/16 JJYChlordane (Technical) 05/27/2016 11:00 03:03 ^U0.62 EPA 8081B0.21 1.000.620.11ug/L<0.0052 6/7/16 JJYdelta-BHC 05/27/2016 11:00 03:03 ^U0.025 EPA 8081B0.010 1.000.0250.0052ug/L0.015 6/7/16 JJYDieldrin 05/27/2016 11:00 03:03 ^J0.025 EPA 8081B0.010 1.000.0250.0062ug/L<0.0093 Q 6/7/16 JJYEndosulfan I 05/27/2016 11:00 03:03 ^U0.041 EPA 8081B0.010 1.000.0410.0093ug/L<0.0072 6/7/16 JJYEndosulfan II 05/27/2016 11:00 03:03 ^U0.025 EPA 8081B0.010 1.000.0250.0072ug/L<0.0062 6/7/16 JJYEndosulfan sulfate 05/27/2016 11:00 03:03 ^U0.025 EPA 8081B0.010 1.000.0250.0062ug/L<0.0062 6/7/16 JJYEndrin 05/27/2016 11:00 03:03 ^U0.025 EPA 8081B0.010 1.000.0250.0062ug/L<0.0093 6/7/16 JJYEndrin aldehyde 05/27/2016 11:00 03:03 ^U0.041 EPA 8081B0.010 1.000.0410.0093ug/L<0.0072 6/7/16 JJYEndrin ketone 05/27/2016 11:00 03:03 ^U0.025 EPA 8081B0.010 1.000.0250.0072ug/L<0.0072 6/7/16 JJYgamma-Chlordane 05/27/2016 11:00 03:03 ^U0.025 EPA 8081B0.010 1.000.0250.0072ug/L0.065 6/7/16 JJYHeptachlor 05/27/2016 11:00 03:03 ^0.025 EPA 8081B0.010 1.000.0250.0062ug/L<0.0072 6/7/16 JJYHeptachlor epoxide 05/27/2016 11:00 03:03 ^U0.025 EPA 8081B0.010 1.000.0250.0072ug/L<0.0072 6/7/16 JJYLindane 05/27/2016 11:00 03:03 ^U0.025 EPA 8081B0.010 1.000.0250.0072ug/L<0.0062 6/7/16 JJYMethoxychlor 05/27/2016 11:00 03:03 ^U0.041 EPA 8081B0.010 1.000.0410.0062ug/L<0.18 6/7/16 JJYToxaphene 05/27/2016 11:00 03:03 ^U0.62 EPA 8081B0.21 1.000.620.18% Recovery66 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 11:00 03:03 EPA 8081B1.0014025% Recovery54 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 11:00 03:03 EPA 8081B1.0013530ug/L<0.16 6/1/16 RPN1,1'-Biphenyl 05/27/2016 15:00 21:14U1.0 EPA 8270D0.42 1.001.00.16ug/L<0.18 6/1/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 15:00 21:14U1.0 EPA 8270D0.42 1.001.00.18ug/L<1.1 6/1/16 RPN2,4,5-Trichlorophenol 05/27/2016 15:00 21:14 ^U5.2 EPA 8270D2.1 1.005.21.1ug/L<1.0 6/1/16 RPN2,4,6-Trichlorophenol 05/27/2016 15:00 21:14 ^U5.2 EPA 8270D2.1 1.005.21.0ug/L<1.0 6/1/16 RPN2,4-Dichlorophenol 05/27/2016 15:00 21:14 ^U5.2 EPA 8270D2.1 1.005.21.0ug/L<0.85 6/1/16 RPN2,4-Dimethylphenol 05/27/2016 15:00 21:14 ^U5.2 EPA 8270D2.1 1.005.20.85ug/L<1.6 6/1/16 RPN2,4-Dinitrophenol 05/27/2016 15:00 21:14 ^U10 EPA 8270D5.2 1.00101.6ug/L<0.22 6/1/16 RPN2,4-Dinitrotoluene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L<0.29 6/1/16 RPN2,6-Dinitrotoluene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.29

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 35 of 212

Page 132: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 35 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728770

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516-DUP

DODLOD

Client Sample #:

ug/L<0.19 6/1/16 RPN2-Chloronaphthalene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.91 6/1/16 RPN2-Chlorophenol 05/27/2016 15:00 21:14 ^U5.2 EPA 8270D2.1 1.005.20.91ug/L<0.18 6/1/16 RPN2-Methylnaphthalene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.90 6/1/16 RPN2-Methylphenol 05/27/2016 15:00 21:14 ^U5.2 EPA 8270D2.1 1.005.20.90ug/L<0.23 6/1/16 RPN2-Nitroaniline 05/27/2016 15:00 21:14 ^U2.1 EPA 8270D0.42 1.002.10.23ug/L<0.94 6/1/16 RPN2-Nitrophenol 05/27/2016 15:00 21:14 ^U5.2 EPA 8270D2.1 1.005.20.94ug/L<1.5 6/1/16 RPN3 & 4-Methylphenol 05/27/2016 15:00 21:14 ^U9.4 EPA 8270D3.8 1.009.41.5ug/L<0.69 6/1/16 RPN3,3'-Dichlorobenzidine 05/27/2016 15:00 21:14 ^U2.6 EPA 8270D1.0 1.002.60.69ug/L<0.27 6/1/16 RPN3-Nitroaniline 05/27/2016 15:00 21:14 ^U2.1 EPA 8270D1.0 1.002.10.27ug/L<1.7 6/1/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 15:00 21:14 ^U10 EPA 8270D2.1 1.00101.7ug/L<0.21 6/1/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 15:00 21:14 ^U2.1 EPA 8270D0.42 1.002.10.21ug/L<0.83 6/1/16 RPN4-Chloro-3-methylphenol 05/27/2016 15:00 21:14 ^U5.2 EPA 8270D2.1 1.005.20.83ug/L<0.13 6/1/16 RPN4-Chloroaniline 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.13ug/L<0.19 6/1/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.16 6/1/16 RPN4-Nitroaniline 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.16ug/L<1.1 6/1/16 RPN4-Nitrophenol 05/27/2016 15:00 21:14 ^U10 EPA 8270D5.2 1.00101.1ug/L<0.19 6/1/16 RPNAcenaphthene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.18 6/1/16 RPNAcenaphthylene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L0.53 6/1/16 RPNAcetophenone 05/27/2016 15:00 21:14 ^J1.0 EPA 8270D0.42 1.001.00.28ug/L<0.11 6/1/16 RPNAnthracene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.11ug/L<0.27 6/1/16 RPNAtrazine 05/27/2016 15:00 21:14U1.0 EPA 8270D0.42 1.001.00.27ug/L4.8 6/1/16 RPNBenzaldehyde 05/27/2016 15:00 21:141.0 EPA 8270D0.42 1.001.00.26ug/L0.21 6/1/16 RPNBenzo(a)anthracene 05/27/2016 15:00 21:14 ^J1.0 EPA 8270D0.42 1.001.00.13ug/L<0.15 6/1/16 RPNBenzo(a)pyrene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.15ug/L0.38 6/1/16 RPNBenzo(b)fluoranthene 05/27/2016 15:00 21:14 ^J1.0 EPA 8270D0.42 1.001.00.18ug/L<0.22 6/1/16 RPNBenzo(g,h,i)perylene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L0.32 6/1/16 RPNBenzo(k)fluoranthene 05/27/2016 15:00 21:14 ^J1.0 EPA 8270D0.42 1.001.00.21ug/L<0.20 6/1/16 RPNBis(2-chloroethoxy)methane 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.20

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 36 of 212

Page 133: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 36 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728770

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516-DUP

DODLOD

Client Sample #:

ug/L<0.22 6/1/16 RPNBis(2-chloroethyl)ether 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L<0.23 6/1/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.23ug/L0.89 6/1/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 15:00 21:14 ^J2.1 EPA 8270D1.0 1.002.10.46ug/L<0.49 6/1/16 RPNButylbenzylphthalate 05/27/2016 15:00 21:14 ^U2.1 EPA 8270D1.0 1.002.10.49ug/L<0.20 6/1/16 RPNCaprolactam 05/27/2016 15:00 21:14U2.1 EPA 8270D1.0 1.002.10.20ug/L<0.13 6/1/16 RPNCarbazole 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.13ug/L<0.17 6/1/16 RPNChrysene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.17ug/L1.3 6/1/16 RPNDi-n-butylphthalate 05/27/2016 15:00 21:14 ^J4.2 EPA 8270D2.1 1.004.20.70ug/L2.9 6/1/16 RPNDi-n-octylphthalate 05/27/2016 15:00 21:14 ^2.1 EPA 8270D1.0 1.002.10.51ug/L<0.18 6/1/16 RPNDibenzo(a,h)anthracene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.20 6/1/16 RPNDibenzofuran 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.20ug/L<0.47 6/1/16 RPNDiethylphthalate 05/27/2016 15:00 21:14 ^U2.1 EPA 8270D1.0 1.002.10.47ug/L<0.56 6/1/16 RPNDimethylphthalate 05/27/2016 15:00 21:14 ^U2.1 EPA 8270D1.0 1.002.10.56ug/L<0.14 6/1/16 RPNFluoranthene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.14ug/L<0.20 6/1/16 RPNFluorene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.20ug/L<0.28 6/1/16 RPNHexachlorobenzene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.28ug/L<0.19 6/1/16 RPNHexachlorobutadiene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.27 6/1/16 RPNHexachlorocyclopentadiene 05/27/2016 15:00 21:14 ^U2.1 EPA 8270D1.0 1.002.10.27ug/L<0.23 6/1/16 RPNHexachloroethane 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.23ug/L<0.19 6/1/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.19 6/1/16 RPNIsophorone 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.19 6/1/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.38 6/1/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 15:00 21:14 ^U2.1 EPA 8270D0.83 1.002.10.38ug/L<0.19 6/1/16 RPNNaphthalene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.17 6/1/16 RPNNitrobenzene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.17ug/L<1.1 6/1/16 RPNPentachlorophenol 05/27/2016 15:00 21:14 ^U5.2 EPA 8270D2.1 1.005.21.1ug/L0.41 6/1/16 RPNPhenanthrene 05/27/2016 15:00 21:14 ^J1.0 EPA 8270D0.42 1.001.00.31ug/L<0.50 6/1/16 RPNPhenol 05/27/2016 15:00 21:14 ^U5.2 EPA 8270D2.1 1.005.20.50

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 37 of 212

Page 134: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 37 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728770

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0900

Analyte

Sample Description: GL-SW-04-052516-DUP

DODLOD

Client Sample #:

ug/L<0.14 6/1/16 RPNPyrene 05/27/2016 15:00 21:14 ^U1.0 EPA 8270D0.42 1.001.00.14% Recovery82 6/1/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 15:00 21:14 ^EPA 8270D1.0012540% Recovery70 6/1/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 15:00 21:14 ^EPA 8270D1.0011050% Recovery42 6/1/16 RPNSurr: 2-Fluorophenol 05/27/2016 15:00 21:14 ^EPA 8270D1.0011020% Recovery80 6/1/16 RPNSurr: Nitrobenzene-d5 05/27/2016 15:00 21:14 ^EPA 8270D1.0011040% Recovery29 6/1/16 RPNSurr: Phenol-d5 05/27/2016 15:00 21:14 ^EPA 8270D1.0011510% Recovery68 6/1/16 RPNSurr: Terphenyl-d14 05/27/2016 15:00 21:14 ^EPA 8270D1.0013550ug/L<0.12 6/2/16 JJYAroclor-1016 05/27/2016 11:00 18:03U1.0 EPA 8082A0.31 1.001.00.12ug/L<0.088 6/2/16 JJYAroclor-1221 05/27/2016 11:00 18:03U1.0 EPA 8082A0.31 1.001.00.088ug/L<0.15 6/2/16 JJYAroclor-1232 05/27/2016 11:00 18:03U1.0 EPA 8082A0.31 1.001.00.15ug/L<0.099 6/2/16 JJYAroclor-1242 05/27/2016 11:00 18:03U1.0 EPA 8082A0.31 1.001.00.099ug/L<0.091 6/2/16 JJYAroclor-1248 05/27/2016 11:00 18:03U1.0 EPA 8082A0.31 1.001.00.091ug/L0.31 6/2/16 JJYAroclor-1254 05/27/2016 11:00 18:03J1.0 EPA 8082A0.31 1.001.00.097ug/L<0.10 6/2/16 JJYAroclor-1260 05/27/2016 11:00 18:03U1.0 EPA 8082A0.31 1.001.00.10ug/L<0.29 6/2/16 JJYAroclor-1262 05/27/2016 11:00 18:03U1.0 EPA 8082A0.31 1.001.00.29ug/L<0.058 6/2/16 JJYAroclor-1268 05/27/2016 11:00 18:03U1.0 EPA 8082A0.31 1.001.00.058% Recovery80 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 11:00 18:03 EPA 8082A1.0013738% Recovery73 6/2/16 JJYSurr: DCBP 05/27/2016 11:00 18:03 EPA 8082A1.0014723

Sub Lab Results

ATTACHED 6/8/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 728771

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516-DUP

DODLOD

Client Sample #:

Inorganic Results

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 38 of 212

Page 135: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 38 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728771

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516-DUP

DODLOD

Client Sample #:

%57.6 5/31/16 ABSSolids, Percent 11:100.1 EPA 8000C0.1 1.000.10.1mg/kg57600 6/1/16 JJFTotal Organic Carbon 12:45 ^3100 L-Kahn/9060A1600 1.003100520

Metals Results

mg/kg9530 6/1/16 NAHAluminum 05/31/2016 09:00 14:53 ^0.43 EPA 6010C0.21 1.000.430.071mg/kg0.56 6/1/16 NAHAntimony 05/31/2016 09:00 14:53 ^J1.4 EPA 6010C0.71 1.001.40.23mg/kg7.2 6/1/16 NAHArsenic 05/31/2016 09:00 14:53 ^1.4 EPA 6010C0.71 1.001.40.23mg/kg90.8 6/1/16 NAHBarium 05/31/2016 09:00 14:53 ^0.089 EPA 6010C0.045 1.000.0890.016mg/kg0.29 6/1/16 NAHBeryllium 05/31/2016 09:00 14:53 ^0.071 EPA 6010C0.021 1.000.0710.0071mg/kg0.55 6/1/16 NAHCadmium 05/31/2016 09:00 14:53 ^0.071 EPA 6010C0.036 1.000.0710.011mg/kg44300 6/2/16 NAHCalcium 05/31/2016 09:00 16:51 ^25 EPA 6010C12 10.00254.3mg/kg24.0 6/1/16 NAHChromium 05/31/2016 09:00 14:53 ^0.25 EPA 6010C0.12 1.000.250.041mg/kg9.7 6/1/16 NAHCobalt 05/31/2016 09:00 14:53 ^0.43 EPA 6010C0.21 1.000.430.071mg/kg44.1 6/1/16 NAHCopper 05/31/2016 09:00 14:53 ^0.71 EPA 6010C0.36 1.000.710.12mg/kg22800 6/1/16 NAHIron 05/31/2016 09:00 14:53 ^3.2 EPA 6010C1.6 1.003.20.53mg/kg74.8 6/1/16 NAHLead 05/31/2016 09:00 14:53 ^0.45 EPA 6010C0.22 1.000.450.071mg/kg16600 6/1/16 NAHMagnesium 05/31/2016 09:00 14:53 ^1.4 EPA 6010C0.71 1.001.40.25mg/kg370 6/1/16 NAHManganese 05/31/2016 09:00 14:53 ^0.27 EPA 6010C0.13 1.000.270.045mg/kg32.6 6/1/16 NAHNickel 05/31/2016 09:00 14:53 ^0.21 EPA 6010C0.11 1.000.210.037mg/kg0.43 6/1/16 NAHSelenium 05/31/2016 09:00 14:53 ^J0.71 EPA 6010C0.36 1.000.710.11mg/kg<0.030 6/1/16 NAHSilver 05/31/2016 09:00 14:53 ^U0.18 EPA 6010C0.089 1.000.180.030mg/kg<0.14 6/1/16 NAHThallium 05/31/2016 09:00 14:53 ^U0.85 EPA 6010C0.43 1.000.850.14mg/kg22.5 6/1/16 NAHVanadium 05/31/2016 09:00 14:53 ^0.14 EPA 6010C0.071 1.000.140.021mg/kg159 6/1/16 NAHZinc 05/31/2016 09:00 14:53 ^0.53 EPA 6010C0.27 1.000.530.089mg/kg2040 6/2/16 MDSPotassium 05/31/2016 09:00 14:31 ^120 EPA 6010C59 1.0012020mg/kg499 6/2/16 MDSSodium 05/31/2016 09:00 14:31 ^43 EPA 6010C21 1.00437.1mg/kg0.057 5/31/16 LJFMercury 05/27/2016 12:00 14:25 ^0.016 EPA 7471B0.0080 1.000.0160.0040

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 39 of 212

Page 136: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 39 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728771

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516-DUP

DODLOD

Client Sample #:

Organic ResultsVOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<9.5 5/29/16 RLD1,1,1-Trichloroethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00479.5ug/kg<5.7 5/29/16 RLD1,1,2,2-Tetrachloroethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00475.7ug/kg<7.6 5/29/16 RLD1,1,2-Trichloroethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00477.6ug/kg<10 5/29/16 RLD1,1-Dichloroethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.004710ug/kg<15 5/29/16 RLD1,1-Dichloroethene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.004715ug/kg<7.6 5/29/16 RLD1,2,3-Trichlorobenzene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00477.6ug/kg<8.5 5/29/16 RLD1,2,4-Trichlorobenzene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00478.5ug/kg<11 5/29/16 RLD1,2-Dibromo-3-chloropropane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.004711ug/kg<9.5 5/29/16 RLD1,2-Dibromoethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00479.5ug/kg<8.5 5/29/16 RLD1,2-Dichlorobenzene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00478.5ug/kg<11 5/29/16 RLD1,2-Dichloroethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.004711ug/kg<6.6 5/29/16 RLD1,2-Dichloropropane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00476.6ug/kg<7.6 5/29/16 RLD1,3-Dichlorobenzene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00477.6ug/kg<8.5 5/29/16 RLD1,4-Dichloro-2-butene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00478.5ug/kg<380 5/29/16 RLD1,4-Dioxane 05/25/2016 16:20 13:45 ^U4700 EPA 8260C950 1.004700380ug/kg<19 5/29/16 RLD112Trichloro122trifluoroethane 05/25/2016 16:20 13:45 ^U95 EPA 8260C38 1.009519ug/kg<95 5/29/16 RLD2-Butanone 05/25/2016 16:20 13:45 ^U470 EPA 8260C190 1.0047095ug/kg<65 5/29/16 RLD2-Hexanone 05/25/2016 16:20 13:45 ^U470 EPA 8260C190 1.0047065ug/kg<78 5/29/16 RLD4-Methyl-2-pentanone 05/25/2016 16:20 13:45 ^U470 EPA 8260C190 1.0047078ug/kg85.8 5/29/16 RLDAcetone 05/25/2016 16:20 13:45 ^J470 EPA 8260C190 1.0047060ug/kg<4.7 5/29/16 RLDBenzene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00474.7ug/kg<7.6 5/29/16 RLDBromochloromethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00477.6ug/kg<8.5 5/29/16 RLDBromodichloromethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00478.5ug/kg<5.7 5/29/16 RLDBromoform 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00475.7ug/kg<28 5/29/16 RLDBromomethane 05/25/2016 16:20 13:45 ^U95 EPA 8260C47 1.009528

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 40 of 212

Page 137: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 40 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728771

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516-DUP

DODLOD

Client Sample #:

VOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<14 5/29/16 RLDCarbon disulfide 05/25/2016 16:20 13:45 ^U95 EPA 8260C38 1.009514ug/kg<10 5/29/16 RLDCarbon tetrachloride 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.004710ug/kg<7.6 5/29/16 RLDChlorobenzene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00477.6ug/kg<18 5/29/16 RLDChloroethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.004718ug/kg<8.5 5/29/16 RLDChloroform 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00478.5ug/kg<24 5/29/16 RLDChloromethane 05/25/2016 16:20 13:45 ^U95 EPA 8260C47 1.009524ug/kg<9.5 5/29/16 RLDcis-1,2-Dichloroethene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00479.5ug/kg<9.5 5/29/16 RLDcis-1,3-Dichloropropene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00479.5ug/kg<11 5/29/16 RLDCyclohexane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.004711ug/kg<7.6 5/29/16 RLDDibromochloromethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00477.6ug/kg<12 5/29/16 RLDDichlorodifluoromethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.004712ug/kg<7.6 5/29/16 RLDEthylbenzene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00477.6ug/kg<7.6 5/29/16 RLDIsopropylbenzene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00477.6ug/kg<17 5/29/16 RLDm & p-Xylene 05/25/2016 16:20 13:45 ^U95 EPA 8260C38 1.009517ug/kg248 5/29/16 RLDMethyl acetate 05/25/2016 16:20 13:45 ^47 EPA 8260C19 1.004711ug/kg<27 5/29/16 RLDMethyl tert-butyl ether 05/25/2016 16:20 13:45 ^U95 EPA 8260C47 1.009527ug/kg<8.5 5/29/16 RLDMethylcyclohexane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00478.5ug/kg<38 5/29/16 RLDMethylene chloride 05/25/2016 16:20 13:45 ^U95 EPA 8260C47 1.009538ug/kg<7.6 5/29/16 RLDo-Xylene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00477.6ug/kg<5.7 5/29/16 RLDStyrene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00475.7ug/kg<7.6 5/29/16 RLDTetrachloroethene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00477.6ug/kg<6.6 5/29/16 RLDToluene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00476.6ug/kg<10 5/29/16 RLDtrans-1,2-Dichloroethene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.004710ug/kg<6.6 5/29/16 RLDtrans-1,3-Dichloropropene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00476.6ug/kg<9.5 5/29/16 RLDTrichloroethene 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.00479.5ug/kg<12 5/29/16 RLDTrichlorofluoromethane 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.004712

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 41 of 212

Page 138: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 41 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728771

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516-DUP

DODLOD

Client Sample #:

VOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<13 5/29/16 RLDVinyl chloride 05/25/2016 16:20 13:45 ^U47 EPA 8260C19 1.004713% Recovery96 5/29/16 RLD1,2 Dichloroethane-d4 05/25/2016 16:20 13:45 EPA 8260C1.0011780% Recovery103 5/29/16 RLDBromofluorobenzene 05/25/2016 16:20 13:45 EPA 8260C1.0012085% Recovery103 5/29/16 RLDd8-Toluene 05/25/2016 16:20 13:45 EPA 8260C1.0011585% Recovery103 5/29/16 RLDDibromofluoromethane 05/25/2016 16:20 13:45 EPA 8260C1.0011879

Qualifiers applying to all Analytes of Method EPA 8081B: V ug/kg20.7 6/9/16 JJY4,4'-DDD 05/27/2016 14:00 17:28 ^J35 EPA 8081B17 10.00355.2ug/kg17.3 P 6/9/16 JJY4,4'-DDE 05/27/2016 14:00 17:28 ^J35 EPA 8081B17 10.00355.2ug/kg17.3 P 6/9/16 JJY4,4'-DDT 05/27/2016 14:00 17:28 ^J35 EPA 8081B17 10.00358.6ug/kg<8.6 6/9/16 JJYAldrin 05/27/2016 14:00 17:28 ^U35 EPA 8081B17 10.00358.6ug/kg<10 6/9/16 JJYalpha-BHC 05/27/2016 14:00 17:28 ^U69 EPA 8081B35 10.006910ug/kg<5.2 Q 6/9/16 JJYalpha-Chlordane 05/27/2016 14:00 17:28 ^U35 EPA 8081B17 10.00355.2ug/kg<10 6/9/16 JJYbeta-BHC 05/27/2016 14:00 17:28 ^U69 EPA 8081B35 10.006910ug/kg<86 6/9/16 JJYChlordane (Technical) 05/27/2016 14:00 17:28 ^U690 EPA 8081B350 10.0069086ug/kg22.4 6/9/16 JJYdelta-BHC 05/27/2016 14:00 17:28 ^J35 EPA 8081B17 10.00355.2ug/kg<5.2 6/9/16 JJYDieldrin 05/27/2016 14:00 17:28 ^U35 EPA 8081B17 10.00355.2ug/kg<12 6/9/16 JJYEndosulfan I 05/27/2016 14:00 17:28 ^U69 EPA 8081B35 10.006912ug/kg<5.2 6/9/16 JJYEndosulfan II 05/27/2016 14:00 17:28 ^U35 EPA 8081B17 10.00355.2ug/kg<16 6/9/16 JJYEndosulfan sulfate 05/27/2016 14:00 17:28 ^U69 EPA 8081B35 10.006916ug/kg<6.9 6/9/16 JJYEndrin 05/27/2016 14:00 17:28 ^U35 EPA 8081B17 10.00356.9ug/kg<19 6/9/16 JJYEndrin aldehyde 05/27/2016 14:00 17:28 ^U69 EPA 8081B35 10.006919ug/kg<14 6/9/16 JJYEndrin ketone 05/27/2016 14:00 17:28 ^U69 EPA 8081B35 10.006914ug/kg<5.2 6/9/16 JJYgamma-Chlordane 05/27/2016 14:00 17:28 ^U35 EPA 8081B17 10.00355.2ug/kg13.8 6/9/16 JJYHeptachlor 05/27/2016 14:00 17:28 ^J35 EPA 8081B17 10.00356.9ug/kg<8.6 6/9/16 JJYHeptachlor epoxide 05/27/2016 14:00 17:28 ^U35 EPA 8081B17 10.00358.6

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 42 of 212

Page 139: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 42 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728771

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516-DUP

DODLOD

Client Sample #:

Qualifiers applying to all Analytes of Method EPA 8081B: V ug/kg10.4 P 6/9/16 JJYLindane 05/27/2016 14:00 17:28 ^J35 EPA 8081B17 10.00358.6ug/kg<12 6/9/16 JJYMethoxychlor 05/27/2016 14:00 17:28 ^U69 EPA 8081B35 10.006912ug/kg<160 6/9/16 JJYToxaphene 05/27/2016 14:00 17:28 ^U690 EPA 8081B350 10.00690160% Recovery110 6/9/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 14:00 17:28 EPA 8081B10.0012570% Recovery92 6/9/16 JJYSURR:Decachlorobiphenyl 05/27/2016 14:00 17:28 EPA 8081B10.0013055ug/kg<24 6/2/16 RPN1,1'-Biphenyl 05/27/2016 14:00 19:16U210 EPA 8270D100 1.0021024ug/kg<38 6/2/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 14:00 19:16U210 EPA 8270D100 1.0021038ug/kg<220 6/2/16 RPN2,4,5-Trichlorophenol 05/27/2016 14:00 19:16 ^U1000 EPA 8270D520 1.001000220ug/kg<220 6/2/16 RPN2,4,6-Trichlorophenol 05/27/2016 14:00 19:16 ^U1000 EPA 8270D520 1.001000220ug/kg<210 6/2/16 RPN2,4-Dichlorophenol 05/27/2016 14:00 19:16 ^U1000 EPA 8270D520 1.001000210ug/kg<170 6/2/16 RPN2,4-Dimethylphenol 05/27/2016 14:00 19:16 ^U1000 EPA 8270D520 1.001000170ug/kg<470 6/2/16 RPN2,4-Dinitrophenol 05/27/2016 14:00 19:16 ^U1700 EPA 8270D1000 1.001700470ug/kg<41 6/2/16 RPN2,4-Dinitrotoluene 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021041ug/kg<41 6/2/16 RPN2,6-Dinitrotoluene 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021041ug/kg<40 6/2/16 RPN2-Chloronaphthalene 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021040ug/kg<590 6/2/16 RPN2-Chlorophenol 05/27/2016 14:00 19:16 ^U3500 EPA 8270D1000 1.003500590ug/kg72.6 6/2/16 RPN2-Methylnaphthalene 05/27/2016 14:00 19:16 ^J210 EPA 8270D100 1.0021043ug/kg<730 6/2/16 RPN2-Methylphenol 05/27/2016 14:00 19:16 ^U3500 EPA 8270D1000 1.003500730ug/kg<40 6/2/16 RPN2-Nitroaniline 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021040ug/kg<480 6/2/16 RPN2-Nitrophenol 05/27/2016 14:00 19:16 ^U1700 EPA 8270D520 1.001700480ug/kg<1100 6/2/16 RPN3 & 4-Methylphenol 05/27/2016 14:00 19:16 ^U6200 EPA 8270D1900 1.0062001100ug/kg<260 6/2/16 RPN3,3'-Dichlorobenzidine 05/27/2016 14:00 19:16 ^U860 EPA 8270D260 1.00860260ug/kg<38 6/2/16 RPN3-Nitroaniline 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021038ug/kg<470 6/2/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 14:00 19:16 ^U1700 EPA 8270D520 1.001700470ug/kg<43 6/2/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021043ug/kg<660 6/2/16 RPN4-Chloro-3-methylphenol 05/27/2016 14:00 19:16 ^U3500 EPA 8270D1000 1.003500660

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 43 of 212

Page 140: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 43 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728771

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516-DUP

DODLOD

Client Sample #:

ug/kg<67 6/2/16 RPN4-Chloroaniline 05/27/2016 14:00 19:16 ^U350 EPA 8270D100 1.0035067ug/kg<45 6/2/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021045ug/kg<52 6/2/16 RPN4-Nitroaniline 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021052ug/kg<690 6/2/16 RPN4-Nitrophenol 05/27/2016 14:00 19:16 ^U3500 EPA 8270D1000 1.003500690ug/kg<41 6/2/16 RPNAcenaphthene 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021041ug/kg<41 6/2/16 RPNAcenaphthylene 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021041ug/kg<130 6/2/16 RPNAcetophenone 05/27/2016 14:00 19:16 ^U690 EPA 8270D210 1.00690130ug/kg88.1 6/2/16 RPNAnthracene 05/27/2016 14:00 19:16 ^J210 EPA 8270D100 1.0021041ug/kg<24 6/2/16 RPNAtrazine 05/27/2016 14:00 19:16U210 EPA 8270D100 1.0021024ug/kg416 6/2/16 RPNBenzaldehyde 05/27/2016 14:00 19:16210 EPA 8270D100 1.0021033ug/kg301 6/2/16 RPNBenzo(a)anthracene 05/27/2016 14:00 19:16 ^210 EPA 8270D100 1.0021043ug/kg256 6/2/16 RPNBenzo(a)pyrene 05/27/2016 14:00 19:16 ^210 EPA 8270D100 1.0021040ug/kg430 6/2/16 RPNBenzo(b)fluoranthene 05/27/2016 14:00 19:16 ^210 EPA 8270D100 1.0021043ug/kg188 6/2/16 RPNBenzo(g,h,i)perylene 05/27/2016 14:00 19:16 ^J210 EPA 8270D100 1.0021038ug/kg104 6/2/16 RPNBenzo(k)fluoranthene 05/27/2016 14:00 19:16 ^J210 EPA 8270D100 1.0021043ug/kg<40 6/2/16 RPNBis(2-chloroethoxy)methane 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021040ug/kg<43 6/2/16 RPNBis(2-chloroethyl)ether 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021043ug/kg<52 6/2/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021052ug/kg349 6/2/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 14:00 19:16 ^J690 EPA 8270D210 1.00690150ug/kg454 6/2/16 RPNButylbenzylphthalate 05/27/2016 14:00 19:16 ^J690 EPA 8270D210 1.00690130ug/kg<130 6/2/16 RPNCaprolactam 05/27/2016 14:00 19:16U690 EPA 8270D210 1.00690130ug/kg<48 6/2/16 RPNCarbazole 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021048ug/kg363 6/2/16 RPNChrysene 05/27/2016 14:00 19:16 ^210 EPA 8270D100 1.0021043ug/kg508 6/2/16 RPNDi-n-butylphthalate 05/27/2016 14:00 19:16 ^J690 EPA 8270D210 1.00690140ug/kg<100 6/2/16 RPNDi-n-octylphthalate 05/27/2016 14:00 19:16 ^U350 EPA 8270D100 1.00350100ug/kg63.9 6/2/16 RPNDibenzo(a,h)anthracene 05/27/2016 14:00 19:16 ^J210 EPA 8270D100 1.0021038ug/kg<41 6/2/16 RPNDibenzofuran 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021041ug/kg<110 6/2/16 RPNDiethylphthalate 05/27/2016 14:00 19:16 ^U690 EPA 8270D210 1.00690110

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 44 of 212

Page 141: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 44 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728771

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516-DUP

DODLOD

Client Sample #:

ug/kg<110 6/2/16 RPNDimethylphthalate 05/27/2016 14:00 19:16 ^U690 EPA 8270D210 1.00690110ug/kg579 6/2/16 RPNFluoranthene 05/27/2016 14:00 19:16 ^210 EPA 8270D100 1.0021045ug/kg<43 6/2/16 RPNFluorene 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021043ug/kg<48 6/2/16 RPNHexachlorobenzene 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021048ug/kg<110 6/2/16 RPNHexachlorobutadiene 05/27/2016 14:00 19:16 ^U690 EPA 8270D210 1.00690110ug/kg<90 Q 6/2/16 RPNHexachlorocyclopentadiene 05/27/2016 14:00 19:16 ^U350 EPA 8270D210 1.0035090ug/kg<57 6/2/16 RPNHexachloroethane 05/27/2016 14:00 19:16 ^U210 EPA 8270D100 1.0021057ug/kg164 6/2/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 14:00 19:16 ^J210 EPA 8270D100 1.0021040ug/kg<86 6/2/16 RPNIsophorone 05/27/2016 14:00 19:16 ^U350 EPA 8270D100 1.0035086ug/kg<120 6/2/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 14:00 19:16 ^U690 EPA 8270D210 1.00690120ug/kg<86 6/2/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 14:00 19:16 ^U410 EPA 8270D210 1.0041086ug/kg55.3 6/2/16 RPNNaphthalene 05/27/2016 14:00 19:16 ^J210 EPA 8270D100 1.0021036ug/kg<100 6/2/16 RPNNitrobenzene 05/27/2016 14:00 19:16 ^U350 EPA 8270D100 1.00350100ug/kg<410 6/2/16 RPNPentachlorophenol 05/27/2016 14:00 19:16 ^U1700 EPA 8270D520 1.001700410ug/kg318 6/2/16 RPNPhenanthrene 05/27/2016 14:00 19:16 ^210 EPA 8270D100 1.0021045ug/kg<280 6/2/16 RPNPhenol 05/27/2016 14:00 19:16 ^U1000 EPA 8270D520 1.001000280ug/kg494 6/2/16 RPNPyrene 05/27/2016 14:00 19:16 ^210 EPA 8270D100 1.0021045% Recovery65 6/2/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 14:00 19:16 ^EPA 8270D1.0012535% Recovery74 6/2/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 14:00 19:16 ^EPA 8270D1.0010545% Recovery60 6/2/16 RPNSurr: 2-Fluorophenol 05/27/2016 14:00 19:16 ^EPA 8270D1.0010535% Recovery74 6/2/16 RPNSurr: Nitrobenzene-d5 05/27/2016 14:00 19:16 ^EPA 8270D1.0010035% Recovery64 6/2/16 RPNSurr: Phenol-d5 05/27/2016 14:00 19:16 ^EPA 8270D1.0010040% Recovery78 6/2/16 RPNSurr: Terphenyl-d14 05/27/2016 14:00 19:16 ^EPA 8270D1.0012530ug/kg<8.6 6/2/16 JJYAroclor-1016 05/27/2016 14:00 21:55U52 EPA 8082A34 1.00528.6ug/kg<12 6/2/16 JJYAroclor-1221 05/27/2016 14:00 21:55U52 EPA 8082A34 1.005212ug/kg<16 6/2/16 JJYAroclor-1232 05/27/2016 14:00 21:55U52 EPA 8082A34 1.005216ug/kg<12 6/2/16 JJYAroclor-1242 05/27/2016 14:00 21:55U52 EPA 8082A34 1.005212ug/kg87.9 P 6/2/16 JJYAroclor-1248 05/27/2016 14:00 21:5552 EPA 8082A34 1.005212

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 45 of 212

Page 142: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 45 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728771

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 0905

Analyte

Sample Description: GL-SD-04-052516-DUP

DODLOD

Client Sample #:

ug/kg140 6/2/16 JJYAroclor-1254 05/27/2016 14:00 21:5552 EPA 8082A34 1.005216ug/kg58.6 6/2/16 JJYAroclor-1260 05/27/2016 14:00 21:5552 EPA 8082A34 1.005210ug/kg<12 6/2/16 JJYAroclor-1262 05/27/2016 14:00 21:55U52 EPA 8082A34 1.005212ug/kg<8.6 6/2/16 JJYAroclor-1268 05/27/2016 14:00 21:55U52 EPA 8082A34 1.00528.6% Recovery112 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 14:00 21:55 EPA 8082A1.0013554% Recovery92 6/2/16 JJYSurr: DCBP 05/27/2016 14:00 21:55 EPA 8082A1.0014154

Sub Lab Results

ATTACHED 6/8/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 728772

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1100

Analyte

Sample Description: GL-SW-05-052516

DODLOD

Client Sample #:

Inorganic Results

S.U.7.45 6/1/16 SAWpH 14:20 ^0.1 EPA 9040C0.1 1.000.10.1

Metals Results

ug/L204000 6/2/16 NAHTotal Aluminum 05/31/2016 15:00 00:32 ^36 EPA 6010C18 1.00366.0ug/L<2.0 6/2/16 NAHTotal Antimony 05/31/2016 15:00 00:32 ^U12 EPA 6010C6.0 1.00122.0ug/L111 6/2/16 NAHTotal Arsenic 05/31/2016 15:00 00:32 ^24 EPA 6010C12 1.00244.0ug/L4260 6/2/16 NAHTotal Barium 05/31/2016 15:00 00:32 ^1.8 EPA 6010C0.90 1.001.80.29ug/L8.0 6/2/16 NAHTotal Beryllium 05/31/2016 15:00 00:32 ^0.60 EPA 6010C0.30 1.000.600.10ug/L<0.30 6/2/16 NAHTotal Cadmium 05/31/2016 15:00 00:32 ^U2.0 EPA 6010C1.0 1.002.00.30ug/L400000 6/2/16 NAHTotal Calcium 05/31/2016 15:00 00:32 ^100 EPA 6010C50 1.0010017ug/L361 6/2/16 NAHTotal Chromium 05/31/2016 15:00 00:32 ^4.0 EPA 6010C2.0 1.004.00.60ug/L142 6/2/16 NAHTotal Cobalt 05/31/2016 15:00 00:32 ^4.0 EPA 6010C2.0 1.004.00.70

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 46 of 212

Page 143: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 46 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728772

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1100

Analyte

Sample Description: GL-SW-05-052516

DODLOD

Client Sample #:

ug/L298 6/2/16 NAHTotal Copper 05/31/2016 15:00 00:32 ^7.0 EPA 6010C3.5 1.007.01.2ug/L533000 6/2/16 NAHTotal Iron 05/31/2016 15:00 00:32 ^100 EPA 6010C50 1.0010016ug/L363 6/2/16 NAHTotal Lead 05/31/2016 15:00 00:32 ^4.0 EPA 6010C2.0 1.004.01.4ug/L230000 6/2/16 NAHTotal Magnesium 05/31/2016 15:00 00:32 ^40 EPA 6010C20 1.00406.0ug/L5110 6/2/16 NAHTotal Manganese 05/31/2016 15:00 00:32 ^4.0 EPA 6010C2.0 1.004.00.70ug/L393 6/2/16 NAHTotal Nickel 05/31/2016 15:00 00:32 ^6.0 EPA 6010C3.0 1.006.01.0ug/L5.2 6/2/16 NAHTotal Selenium 05/31/2016 15:00 00:32 ^J13 EPA 6010C6.5 1.00132.2ug/L<0.70 6/2/16 NAHTotal Silver 05/31/2016 15:00 00:32 ^U4.0 EPA 6010C2.0 1.004.00.70ug/L<2.5 6/2/16 NAHTotal Thallium 05/31/2016 15:00 00:32 ^U15 EPA 6010C7.5 1.00152.5ug/L347 6/2/16 NAHTotal Vanadium 05/31/2016 15:00 00:32 ^5.0 EPA 6010C2.5 1.005.00.80ug/L2150 6/2/16 NAHTotal Zinc 05/31/2016 15:00 00:32 ^10 EPA 6010C5.0 1.00101.6ug/L144000 6/3/16 MDSTotal Potassium 05/31/2016 15:00 08:06 ^1000 EPA 6010C500 2.001000180ug/L250000 6/3/16 MDSTotal Sodium 05/31/2016 15:00 08:06 ^1200 EPA 6010C600 2.001200200ug/L0.56 5/31/16 LJFTotal Mercury 05/27/2016 07:30 09:19 ^0.12 EPA 7470A0.060 1.000.120.030

Organic Results

Qualifiers applying to all Analytes of Method EPA 8260C: T ug/L<1.1 5/31/16 AGK1,1,1-Trichloroethane 17:52 ^U2.5 EPA 8260C1.3 5.002.51.1ug/L<0.95 5/31/16 AGK1,1,2,2-Tetrachloroethane 17:52 ^U2.5 EPA 8260C1.3 5.002.50.95ug/L<1.3 5/31/16 AGK1,1,2-Trichloroethane 17:52 ^U5.0 EPA 8260C2.5 5.005.01.3ug/L<1.0 5/31/16 AGK1,1-Dichloroethane 17:52 ^U2.5 EPA 8260C1.3 5.002.51.0ug/L<1.2 5/31/16 AGK1,1-Dichloroethene 17:52 ^U2.5 EPA 8260C1.3 5.002.51.2ug/L<1.5 5/31/16 AGK1,2,3-Trichlorobenzene 17:52 ^U5.0 EPA 8260C2.5 5.005.01.5ug/L<1.5 5/31/16 AGK1,2,4-Trichlorobenzene 17:52 ^U5.0 EPA 8260C2.5 5.005.01.5ug/L<2.0 5/31/16 AGK1,2-Dibromo-3-chloropropane 17:52 ^U5.0 EPA 8260C2.5 5.005.02.0ug/L<0.80 5/31/16 AGK1,2-Dibromoethane 17:52 ^U2.5 EPA 8260C1.3 5.002.50.80ug/L<1.2 5/31/16 AGK1,2-Dichlorobenzene 17:52 ^U2.5 EPA 8260C1.3 5.002.51.2

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 47 of 212

Page 144: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 47 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728772

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1100

Analyte

Sample Description: GL-SW-05-052516

DODLOD

Client Sample #:

Qualifiers applying to all Analytes of Method EPA 8260C: T ug/L<1.5 5/31/16 AGK1,2-Dichloroethane 17:52 ^U5.0 EPA 8260C2.5 5.005.01.5ug/L<1.1 5/31/16 AGK1,2-Dichloropropane 17:52 ^U2.5 EPA 8260C1.3 5.002.51.1ug/L<1.3 5/31/16 AGK1,3-Dichlorobenzene 17:52 ^U5.0 EPA 8260C2.5 5.005.01.3ug/L<1.1 5/31/16 AGK1,4-Dichloro-2-butene 17:52U2.5 EPA 8260C1.3 5.002.51.1ug/L570 Q,Z 5/31/16 AGK1,4-Dioxane 17:52130 EPA 8260C63 5.0013025ug/L<2.5 5/31/16 AGK112Trichloro122trifluoroethane 17:52U5.0 EPA 8260C2.5 5.005.02.5ug/L<12 5/31/16 AGK2-Butanone 17:52 ^U25 EPA 8260C13 5.002512ug/L<20 5/31/16 AGK2-Hexanone 17:52 ^U50 EPA 8260C25 5.005020ug/L<15 5/31/16 AGK4-Methyl-2-pentanone 17:52 ^U50 EPA 8260C25 5.005015ug/L<25 5/31/16 AGKAcetone 17:52 ^U50 EPA 8260C25 5.005025ug/L4.3 5/31/16 AGKBenzene 17:52 ^2.5 EPA 8260C1.3 5.002.50.95ug/L<0.95 5/31/16 AGKBromochloromethane 17:52 ^U2.5 EPA 8260C1.3 5.002.50.95ug/L<1.0 5/31/16 AGKBromodichloromethane 17:52 ^U2.5 EPA 8260C1.3 5.002.51.0ug/L<1.1 5/31/16 AGKBromoform 17:52 ^U2.5 EPA 8260C1.3 5.002.51.1ug/L<2.5 5/31/16 AGKBromomethane 17:52 ^U5.0 EPA 8260C2.5 5.005.02.5ug/L<2.5 5/31/16 AGKCarbon disulfide 17:52 ^U5.0 EPA 8260C2.5 5.005.02.5ug/L<1.2 5/31/16 AGKCarbon tetrachloride 17:52 ^U2.5 EPA 8260C1.3 5.002.51.2ug/L3.4 5/31/16 AGKChlorobenzene 17:52 ^2.5 EPA 8260C1.3 5.002.51.2ug/L<2.0 5/31/16 AGKChloroethane 17:52 ^U5.0 EPA 8260C2.5 5.005.02.0ug/L<0.75 5/31/16 AGKChloroform 17:52 ^U2.5 EPA 8260C1.3 5.002.50.75ug/L<2.0 5/31/16 AGKChloromethane 17:52 ^U5.0 EPA 8260C2.5 5.005.02.0ug/L<1.3 5/31/16 AGKcis-1,2-Dichloroethene 17:52 ^U2.5 EPA 8260C1.3 5.002.51.3ug/L<0.95 5/31/16 AGKcis-1,3-Dichloropropene 17:52 ^U2.5 EPA 8260C1.3 5.002.50.95ug/L<1.4 5/31/16 AGKCyclohexane 17:52U5.0 EPA 8260C2.5 5.005.01.4ug/L<0.95 5/31/16 AGKDibromochloromethane 17:52 ^U2.5 EPA 8260C1.3 5.002.50.95ug/L<1.3 5/31/16 AGKDichlorodifluoromethane 17:52 ^U5.0 EPA 8260C2.5 5.005.01.3

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 48 of 212

Page 145: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 48 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728772

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1100

Analyte

Sample Description: GL-SW-05-052516

DODLOD

Client Sample #:

Qualifiers applying to all Analytes of Method EPA 8260C: T ug/L58 5/31/16 AGKEthylbenzene 17:52 ^2.5 EPA 8260C1.3 5.002.51.1ug/L14 5/31/16 AGKIsopropylbenzene 17:52 ^2.5 EPA 8260C1.3 5.002.50.90ug/L87 5/31/16 AGKm & p-Xylene 17:52 ^5.0 EPA 8260C2.5 5.005.02.5ug/L<1.5 5/31/16 AGKMethyl acetate 17:52U5.0 EPA 8260C2.5 5.005.01.5ug/L<1.5 5/31/16 AGKMethyl tert-butyl ether 17:52 ^U5.0 EPA 8260C2.5 5.005.01.5ug/L<1.2 5/31/16 AGKMethylcyclohexane 17:52U2.5 EPA 8260C1.3 5.002.51.2ug/L3.1 5/31/16 AGKMethylene chloride 17:52 ^J10 EPA 8260C2.5 5.00102.0ug/L23 5/31/16 AGKo-Xylene 17:52 ^2.5 EPA 8260C1.3 5.002.51.2ug/L<1.0 5/31/16 AGKStyrene 17:52 ^U2.5 EPA 8260C1.3 5.002.51.0ug/L<1.5 5/31/16 AGKTetrachloroethene 17:52 ^U5.0 EPA 8260C2.5 5.005.01.5ug/L2.2 5/31/16 AGKToluene 17:52 ^J2.5 EPA 8260C1.3 5.002.51.1ug/L<1.3 5/31/16 AGKtrans-1,2-Dichloroethene 17:52 ^U2.5 EPA 8260C1.3 5.002.51.3ug/L<0.95 5/31/16 AGKtrans-1,3-Dichloropropene 17:52 ^U2.5 EPA 8260C1.3 5.002.50.95ug/L<1.1 5/31/16 AGKTrichloroethene 17:52 ^U2.5 EPA 8260C1.3 5.002.51.1ug/L<1.0 5/31/16 AGKTrichlorofluoromethane 17:52 ^U2.5 EPA 8260C1.3 5.002.51.0ug/L<0.90 5/31/16 AGKVinyl chloride 17:52 ^U2.5 EPA 8260C1.3 5.002.50.90% Recovery101 5/31/16 AGK1,2 Dichloroethane-d4 17:52 EPA 8260C1.0012070% Recovery99 5/31/16 AGKBromofluorobenzene 17:52 EPA 8260C1.0012075% Recovery102 5/31/16 AGKd8-Toluene 17:52 EPA 8260C1.0012085% Recovery97 5/31/16 AGKDibromofluoromethane 17:52 EPA 8260C1.0011585ug/L<0.0060 6/7/16 JJY4,4'-DDD 05/27/2016 11:00 03:20 ^U0.024 EPA 8081B0.010 1.000.0240.0060ug/L<0.0060 6/7/16 JJY4,4'-DDE 05/27/2016 11:00 03:20 ^U0.040 EPA 8081B0.010 1.000.0400.0060ug/L<0.0070 6/7/16 JJY4,4'-DDT 05/27/2016 11:00 03:20 ^U0.024 EPA 8081B0.010 1.000.0240.0070ug/L0.0080 P 6/7/16 JJYAldrin 05/27/2016 11:00 03:20 ^J0.024 EPA 8081B0.010 1.000.0240.0060ug/L0.019 P 6/7/16 JJYalpha-BHC 05/27/2016 11:00 03:20 ^J0.024 EPA 8081B0.010 1.000.0240.0050ug/L<0.0090 6/7/16 JJYalpha-Chlordane 05/27/2016 11:00 03:20 ^U0.040 EPA 8081B0.010 1.000.0400.0090

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 49 of 212

Page 146: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 49 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728772

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1100

Analyte

Sample Description: GL-SW-05-052516

DODLOD

Client Sample #:

ug/L<0.0090 6/7/16 JJYbeta-BHC 05/27/2016 11:00 03:20 ^U0.040 EPA 8081B0.010 1.000.0400.0090ug/L<0.10 6/7/16 JJYChlordane (Technical) 05/27/2016 11:00 03:20 ^U0.60 EPA 8081B0.20 1.000.600.10ug/L<0.0050 6/7/16 JJYdelta-BHC 05/27/2016 11:00 03:20 ^U0.024 EPA 8081B0.010 1.000.0240.0050ug/L<0.0060 6/7/16 JJYDieldrin 05/27/2016 11:00 03:20 ^U0.024 EPA 8081B0.010 1.000.0240.0060ug/L<0.0090 Q 6/7/16 JJYEndosulfan I 05/27/2016 11:00 03:20 ^U0.040 EPA 8081B0.010 1.000.0400.0090ug/L<0.0070 6/7/16 JJYEndosulfan II 05/27/2016 11:00 03:20 ^U0.024 EPA 8081B0.010 1.000.0240.0070ug/L<0.0060 6/7/16 JJYEndosulfan sulfate 05/27/2016 11:00 03:20 ^U0.024 EPA 8081B0.010 1.000.0240.0060ug/L<0.0060 6/7/16 JJYEndrin 05/27/2016 11:00 03:20 ^U0.024 EPA 8081B0.010 1.000.0240.0060ug/L<0.0090 6/7/16 JJYEndrin aldehyde 05/27/2016 11:00 03:20 ^U0.040 EPA 8081B0.010 1.000.0400.0090ug/L<0.0070 6/7/16 JJYEndrin ketone 05/27/2016 11:00 03:20 ^U0.024 EPA 8081B0.010 1.000.0240.0070ug/L0.014 6/7/16 JJYgamma-Chlordane 05/27/2016 11:00 03:20 ^J0.024 EPA 8081B0.010 1.000.0240.0070ug/L<0.0060 6/7/16 JJYHeptachlor 05/27/2016 11:00 03:20 ^U0.024 EPA 8081B0.010 1.000.0240.0060ug/L<0.0070 6/7/16 JJYHeptachlor epoxide 05/27/2016 11:00 03:20 ^U0.024 EPA 8081B0.010 1.000.0240.0070ug/L0.0080 P 6/7/16 JJYLindane 05/27/2016 11:00 03:20 ^J0.024 EPA 8081B0.010 1.000.0240.0070ug/L<0.0060 6/7/16 JJYMethoxychlor 05/27/2016 11:00 03:20 ^U0.040 EPA 8081B0.010 1.000.0400.0060ug/L<0.18 6/7/16 JJYToxaphene 05/27/2016 11:00 03:20 ^U0.60 EPA 8081B0.20 1.000.600.18% Recovery42 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 11:00 03:20 EPA 8081B1.0014025% Recovery38 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 11:00 03:20 EPA 8081B1.0013530ug/L<0.15 6/1/16 RPN1,1'-Biphenyl 05/27/2016 15:00 19:44U1.0 EPA 8270D0.41 1.001.00.15ug/L<0.17 6/1/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 15:00 19:44U1.0 EPA 8270D0.41 1.001.00.17ug/L<1.1 6/1/16 RPN2,4,5-Trichlorophenol 05/27/2016 15:00 19:44 ^U5.1 EPA 8270D2.0 1.005.11.1ug/L<1.0 6/1/16 RPN2,4,6-Trichlorophenol 05/27/2016 15:00 19:44 ^U5.1 EPA 8270D2.0 1.005.11.0ug/L<1.0 6/1/16 RPN2,4-Dichlorophenol 05/27/2016 15:00 19:44 ^U5.1 EPA 8270D2.0 1.005.11.0ug/L<0.84 6/1/16 RPN2,4-Dimethylphenol 05/27/2016 15:00 19:44 ^U5.1 EPA 8270D2.0 1.005.10.84ug/L<1.5 6/1/16 RPN2,4-Dinitrophenol 05/27/2016 15:00 19:44 ^U10 EPA 8270D5.1 1.00101.5ug/L<0.21 6/1/16 RPN2,4-Dinitrotoluene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.21ug/L<0.29 6/1/16 RPN2,6-Dinitrotoluene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.29ug/L<0.18 6/1/16 RPN2-Chloronaphthalene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.18

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 50 of 212

Page 147: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 50 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728772

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1100

Analyte

Sample Description: GL-SW-05-052516

DODLOD

Client Sample #:

ug/L<0.89 6/1/16 RPN2-Chlorophenol 05/27/2016 15:00 19:44 ^U5.1 EPA 8270D2.0 1.005.10.89ug/L0.23 6/1/16 RPN2-Methylnaphthalene 05/27/2016 15:00 19:44 ^J1.0 EPA 8270D0.41 1.001.00.17ug/L<0.88 6/1/16 RPN2-Methylphenol 05/27/2016 15:00 19:44 ^U5.1 EPA 8270D2.0 1.005.10.88ug/L<0.22 6/1/16 RPN2-Nitroaniline 05/27/2016 15:00 19:44 ^U2.0 EPA 8270D0.41 1.002.00.22ug/L<0.92 6/1/16 RPN2-Nitrophenol 05/27/2016 15:00 19:44 ^U5.1 EPA 8270D2.0 1.005.10.92ug/L<1.4 6/1/16 RPN3 & 4-Methylphenol 05/27/2016 15:00 19:44 ^U9.2 EPA 8270D3.7 1.009.21.4ug/L<0.67 6/1/16 RPN3,3'-Dichlorobenzidine 05/27/2016 15:00 19:44 ^U2.6 EPA 8270D1.0 1.002.60.67ug/L<0.27 6/1/16 RPN3-Nitroaniline 05/27/2016 15:00 19:44 ^U2.0 EPA 8270D1.0 1.002.00.27ug/L<1.6 6/1/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 15:00 19:44 ^U10 EPA 8270D2.0 1.00101.6ug/L<0.20 6/1/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 15:00 19:44 ^U2.0 EPA 8270D0.41 1.002.00.20ug/L<0.82 6/1/16 RPN4-Chloro-3-methylphenol 05/27/2016 15:00 19:44 ^U5.1 EPA 8270D2.0 1.005.10.82ug/L<0.12 6/1/16 RPN4-Chloroaniline 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.12ug/L<0.18 6/1/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.18ug/L<0.15 6/1/16 RPN4-Nitroaniline 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.15ug/L<1.1 6/1/16 RPN4-Nitrophenol 05/27/2016 15:00 19:44 ^U10 EPA 8270D5.1 1.00101.1ug/L<0.18 6/1/16 RPNAcenaphthene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.18ug/L<0.17 6/1/16 RPNAcenaphthylene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.17ug/L<0.28 6/1/16 RPNAcetophenone 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.28ug/L<0.11 6/1/16 RPNAnthracene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.11ug/L<0.27 6/1/16 RPNAtrazine 05/27/2016 15:00 19:44U1.0 EPA 8270D0.41 1.001.00.27ug/L<0.26 6/1/16 RPNBenzaldehyde 05/27/2016 15:00 19:44U1.0 EPA 8270D0.41 1.001.00.26ug/L<0.12 6/1/16 RPNBenzo(a)anthracene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.12ug/L<0.14 6/1/16 RPNBenzo(a)pyrene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.14ug/L<0.17 6/1/16 RPNBenzo(b)fluoranthene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.17ug/L<0.21 6/1/16 RPNBenzo(g,h,i)perylene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.21ug/L<0.20 6/1/16 RPNBenzo(k)fluoranthene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.20ug/L<0.19 6/1/16 RPNBis(2-chloroethoxy)methane 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.19ug/L<0.21 6/1/16 RPNBis(2-chloroethyl)ether 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.21

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 51 of 212

Page 148: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 51 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728772

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1100

Analyte

Sample Description: GL-SW-05-052516

DODLOD

Client Sample #:

ug/L<0.22 6/1/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.22ug/L1.1 6/1/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 15:00 19:44 ^J2.0 EPA 8270D1.0 1.002.00.45ug/L<0.48 6/1/16 RPNButylbenzylphthalate 05/27/2016 15:00 19:44 ^U2.0 EPA 8270D1.0 1.002.00.48ug/L<0.19 6/1/16 RPNCaprolactam 05/27/2016 15:00 19:44U2.0 EPA 8270D1.0 1.002.00.19ug/L<0.12 6/1/16 RPNCarbazole 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.12ug/L<0.16 6/1/16 RPNChrysene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.16ug/L1.2 6/1/16 RPNDi-n-butylphthalate 05/27/2016 15:00 19:44 ^J4.1 EPA 8270D2.0 1.004.10.68ug/L<0.50 6/1/16 RPNDi-n-octylphthalate 05/27/2016 15:00 19:44 ^U2.0 EPA 8270D1.0 1.002.00.50ug/L<0.17 6/1/16 RPNDibenzo(a,h)anthracene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.17ug/L<0.19 6/1/16 RPNDibenzofuran 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.19ug/L<0.46 6/1/16 RPNDiethylphthalate 05/27/2016 15:00 19:44 ^U2.0 EPA 8270D1.0 1.002.00.46ug/L<0.55 6/1/16 RPNDimethylphthalate 05/27/2016 15:00 19:44 ^U2.0 EPA 8270D1.0 1.002.00.55ug/L<0.13 6/1/16 RPNFluoranthene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.13ug/L<0.19 6/1/16 RPNFluorene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.19ug/L<0.28 6/1/16 RPNHexachlorobenzene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.28ug/L<0.18 6/1/16 RPNHexachlorobutadiene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.18ug/L<0.27 6/1/16 RPNHexachlorocyclopentadiene 05/27/2016 15:00 19:44 ^U2.0 EPA 8270D1.0 1.002.00.27ug/L<0.22 6/1/16 RPNHexachloroethane 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.22ug/L<0.18 6/1/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.18ug/L<0.18 6/1/16 RPNIsophorone 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.18ug/L<0.18 6/1/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.18ug/L<0.37 6/1/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 15:00 19:44 ^U2.0 EPA 8270D0.82 1.002.00.37ug/L4.2 6/1/16 RPNNaphthalene 05/27/2016 15:00 19:44 ^1.0 EPA 8270D0.41 1.001.00.18ug/L<0.16 6/1/16 RPNNitrobenzene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.16ug/L<1.1 6/1/16 RPNPentachlorophenol 05/27/2016 15:00 19:44 ^U5.1 EPA 8270D2.0 1.005.11.1ug/L<0.31 6/1/16 RPNPhenanthrene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.31ug/L<0.49 6/1/16 RPNPhenol 05/27/2016 15:00 19:44 ^U5.1 EPA 8270D2.0 1.005.10.49ug/L<0.13 6/1/16 RPNPyrene 05/27/2016 15:00 19:44 ^U1.0 EPA 8270D0.41 1.001.00.13

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 52 of 212

Page 149: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 52 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728772

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1100

Analyte

Sample Description: GL-SW-05-052516

DODLOD

Client Sample #:

% Recovery5 S 6/1/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 15:00 19:44 ^EPA 8270D1.0012540% Recovery5 S 6/1/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 15:00 19:44 ^EPA 8270D1.0011050% Recovery4 S 6/1/16 RPNSurr: 2-Fluorophenol 05/27/2016 15:00 19:44 ^EPA 8270D1.0011020% Recovery10 S 6/1/16 RPNSurr: Nitrobenzene-d5 05/27/2016 15:00 19:44 ^EPA 8270D1.0011040% Recovery3 S 6/1/16 RPNSurr: Phenol-d5 05/27/2016 15:00 19:44 ^EPA 8270D1.0011510% Recovery5 S 6/1/16 RPNSurr: Terphenyl-d14 05/27/2016 15:00 19:44 ^EPA 8270D1.0013550ug/L<0.11 6/2/16 JJYAroclor-1016 05/27/2016 11:00 18:22U1.0 EPA 8082A0.30 1.001.00.11ug/L<0.085 6/2/16 JJYAroclor-1221 05/27/2016 11:00 18:22U1.0 EPA 8082A0.30 1.001.00.085ug/L<0.15 6/2/16 JJYAroclor-1232 05/27/2016 11:00 18:22U1.0 EPA 8082A0.30 1.001.00.15ug/L<0.096 6/2/16 JJYAroclor-1242 05/27/2016 11:00 18:22U1.0 EPA 8082A0.30 1.001.00.096ug/L<0.088 6/2/16 JJYAroclor-1248 05/27/2016 11:00 18:22U1.0 EPA 8082A0.30 1.001.00.088ug/L<0.094 6/2/16 JJYAroclor-1254 05/27/2016 11:00 18:22U1.0 EPA 8082A0.30 1.001.00.094ug/L<0.099 6/2/16 JJYAroclor-1260 05/27/2016 11:00 18:22U1.0 EPA 8082A0.30 1.001.00.099ug/L<0.28 6/2/16 JJYAroclor-1262 05/27/2016 11:00 18:22U1.0 EPA 8082A0.30 1.001.00.28ug/L<0.056 6/2/16 JJYAroclor-1268 05/27/2016 11:00 18:22U1.0 EPA 8082A0.30 1.001.00.056% Recovery44 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 11:00 18:22 EPA 8082A1.0013738% Recovery43 6/2/16 JJYSurr: DCBP 05/27/2016 11:00 18:22 EPA 8082A1.0014723

Sub Lab Results

ATTACHED 6/8/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 728773

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1105

Analyte

Sample Description: GL-SD-05-052516

DODLOD

Client Sample #:

Inorganic Results

%47.0 5/31/16 ABSSolids, Percent 11:100.1 EPA 8000C0.1 1.000.10.1

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 53 of 212

Page 150: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 53 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728773

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1105

Analyte

Sample Description: GL-SD-05-052516

DODLOD

Client Sample #:

mg/kg63700 6/1/16 JJFTotal Organic Carbon 12:51 ^3800 L-Kahn/9060A1900 1.003800640

Metals Results

mg/kg12400 6/1/16 NAHAluminum 05/31/2016 09:00 15:00 ^0.52 EPA 6010C0.26 1.000.520.087mg/kg0.47 6/1/16 NAHAntimony 05/31/2016 09:00 15:00 ^J1.7 EPA 6010C0.87 1.001.70.28mg/kg6.7 6/1/16 NAHArsenic 05/31/2016 09:00 15:00 ^1.7 EPA 6010C0.87 1.001.70.28mg/kg99.3 6/1/16 NAHBarium 05/31/2016 09:00 15:00 ^0.11 EPA 6010C0.054 1.000.110.020mg/kg0.37 6/1/16 NAHBeryllium 05/31/2016 09:00 15:00 ^0.087 EPA 6010C0.026 1.000.0870.0087mg/kg0.31 6/1/16 NAHCadmium 05/31/2016 09:00 15:00 ^0.087 EPA 6010C0.043 1.000.0870.013mg/kg41500 6/1/16 NAHCalcium 05/31/2016 09:00 15:00 ^3.0 EPA 6010C1.5 1.003.00.52mg/kg23.4 6/1/16 NAHChromium 05/31/2016 09:00 15:00 ^0.30 EPA 6010C0.15 1.000.300.050mg/kg11.2 6/1/16 NAHCobalt 05/31/2016 09:00 15:00 ^0.52 EPA 6010C0.26 1.000.520.087mg/kg32.9 6/1/16 NAHCopper 05/31/2016 09:00 15:00 ^0.87 EPA 6010C0.43 1.000.870.15mg/kg24200 6/1/16 NAHIron 05/31/2016 09:00 15:00 ^3.9 EPA 6010C2.0 1.003.90.65mg/kg106 6/1/16 NAHLead 05/31/2016 09:00 15:00 ^0.54 EPA 6010C0.27 1.000.540.087mg/kg15000 6/1/16 NAHMagnesium 05/31/2016 09:00 15:00 ^1.7 EPA 6010C0.87 1.001.70.30mg/kg733 6/1/16 NAHManganese 05/31/2016 09:00 15:00 ^0.33 EPA 6010C0.16 1.000.330.054mg/kg34.0 6/1/16 NAHNickel 05/31/2016 09:00 15:00 ^0.26 EPA 6010C0.13 1.000.260.046mg/kg0.86 6/1/16 NAHSelenium 05/31/2016 09:00 15:00 ^J0.87 EPA 6010C0.43 1.000.870.13mg/kg<0.037 6/1/16 NAHSilver 05/31/2016 09:00 15:00 ^U0.22 EPA 6010C0.11 1.000.220.037mg/kg<0.17 6/1/16 NAHThallium 05/31/2016 09:00 15:00 ^U1.0 EPA 6010C0.52 1.001.00.17mg/kg27.8 6/1/16 NAHVanadium 05/31/2016 09:00 15:00 ^0.17 EPA 6010C0.087 1.000.170.026mg/kg207 6/1/16 NAHZinc 05/31/2016 09:00 15:00 ^0.65 EPA 6010C0.33 1.000.650.11mg/kg2370 6/2/16 MDSPotassium 05/31/2016 09:00 14:34 ^140 EPA 6010C72 1.0014024mg/kg416 6/2/16 MDSSodium 05/31/2016 09:00 14:34 ^52 EPA 6010C26 1.00528.7mg/kg0.073 5/31/16 LJFMercury 05/27/2016 12:00 14:27 ^0.019 EPA 7471B0.0094 1.000.0190.0047

Organic ResultsVOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 54 of 212

Page 151: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 54 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728773

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1105

Analyte

Sample Description: GL-SD-05-052516

DODLOD

Client Sample #:

ug/kg<12 5/29/16 RLD1,1,1-Trichloroethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006112ug/kg<7.4 5/29/16 RLD1,1,2,2-Tetrachloroethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00617.4ug/kg<9.8 5/29/16 RLD1,1,2-Trichloroethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00619.8ug/kg<13 5/29/16 RLD1,1-Dichloroethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006113ug/kg<20 5/29/16 RLD1,1-Dichloroethene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006120ug/kg<9.8 5/29/16 RLD1,2,3-Trichlorobenzene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00619.8ug/kg<11 5/29/16 RLD1,2,4-Trichlorobenzene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006111ug/kg<15 5/29/16 RLD1,2-Dibromo-3-chloropropane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006115ug/kg<12 5/29/16 RLD1,2-Dibromoethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006112ug/kg<11 5/29/16 RLD1,2-Dichlorobenzene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006111ug/kg<15 5/29/16 RLD1,2-Dichloroethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006115ug/kg<8.6 5/29/16 RLD1,2-Dichloropropane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00618.6ug/kg<9.8 5/29/16 RLD1,3-Dichlorobenzene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00619.8ug/kg<11 5/29/16 RLD1,4-Dichloro-2-butene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006111ug/kg<490 5/29/16 RLD1,4-Dioxane 05/25/2016 16:20 14:13 ^U6100 EPA 8260C1200 1.006100490ug/kg<25 5/29/16 RLD112Trichloro122trifluoroethane 05/25/2016 16:20 14:13 ^U120 EPA 8260C49 1.0012025ug/kg<120 5/29/16 RLD2-Butanone 05/25/2016 16:20 14:13 ^U610 EPA 8260C250 1.00610120ug/kg<83 5/29/16 RLD2-Hexanone 05/25/2016 16:20 14:13 ^U610 EPA 8260C250 1.0061083ug/kg<100 5/29/16 RLD4-Methyl-2-pentanone 05/25/2016 16:20 14:13 ^U610 EPA 8260C250 1.00610100ug/kg84.7 5/29/16 RLDAcetone 05/25/2016 16:20 14:13 ^J610 EPA 8260C250 1.0061077ug/kg<6.1 5/29/16 RLDBenzene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00616.1ug/kg<9.8 5/29/16 RLDBromochloromethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00619.8ug/kg<11 5/29/16 RLDBromodichloromethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006111ug/kg<7.4 5/29/16 RLDBromoform 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00617.4ug/kg<37 5/29/16 RLDBromomethane 05/25/2016 16:20 14:13 ^U120 EPA 8260C61 1.0012037ug/kg<18 5/29/16 RLDCarbon disulfide 05/25/2016 16:20 14:13 ^U120 EPA 8260C49 1.0012018ug/kg<13 5/29/16 RLDCarbon tetrachloride 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006113

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 55 of 212

Page 152: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 55 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728773

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1105

Analyte

Sample Description: GL-SD-05-052516

DODLOD

Client Sample #:

VOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<9.8 5/29/16 RLDChlorobenzene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00619.8ug/kg<23 5/29/16 RLDChloroethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006123ug/kg<11 5/29/16 RLDChloroform 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006111ug/kg<31 5/29/16 RLDChloromethane 05/25/2016 16:20 14:13 ^U120 EPA 8260C61 1.0012031ug/kg<12 5/29/16 RLDcis-1,2-Dichloroethene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006112ug/kg<12 5/29/16 RLDcis-1,3-Dichloropropene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006112ug/kg<15 5/29/16 RLDCyclohexane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006115ug/kg<9.8 5/29/16 RLDDibromochloromethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00619.8ug/kg<16 5/29/16 RLDDichlorodifluoromethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006116ug/kg<9.8 5/29/16 RLDEthylbenzene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00619.8ug/kg<9.8 5/29/16 RLDIsopropylbenzene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00619.8ug/kg<22 5/29/16 RLDm & p-Xylene 05/25/2016 16:20 14:13 ^U120 EPA 8260C49 1.0012022ug/kg468 5/29/16 RLDMethyl acetate 05/25/2016 16:20 14:13 ^61 EPA 8260C25 1.006115ug/kg<34 5/29/16 RLDMethyl tert-butyl ether 05/25/2016 16:20 14:13 ^U120 EPA 8260C61 1.0012034ug/kg<11 5/29/16 RLDMethylcyclohexane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006111ug/kg<49 5/29/16 RLDMethylene chloride 05/25/2016 16:20 14:13 ^U120 EPA 8260C61 1.0012049ug/kg<9.8 5/29/16 RLDo-Xylene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00619.8ug/kg<7.4 5/29/16 RLDStyrene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00617.4ug/kg<9.8 5/29/16 RLDTetrachloroethene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00619.8ug/kg<8.6 5/29/16 RLDToluene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00618.6ug/kg<13 5/29/16 RLDtrans-1,2-Dichloroethene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006113ug/kg<8.6 5/29/16 RLDtrans-1,3-Dichloropropene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.00618.6ug/kg<12 5/29/16 RLDTrichloroethene 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006112ug/kg<16 5/29/16 RLDTrichlorofluoromethane 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006116ug/kg<17 5/29/16 RLDVinyl chloride 05/25/2016 16:20 14:13 ^U61 EPA 8260C25 1.006117% Recovery105 5/29/16 RLD1,2 Dichloroethane-d4 05/25/2016 16:20 14:13 EPA 8260C1.0011780

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 56 of 212

Page 153: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 56 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728773

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1105

Analyte

Sample Description: GL-SD-05-052516

DODLOD

Client Sample #:

VOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

% Recovery103 5/29/16 RLDBromofluorobenzene 05/25/2016 16:20 14:13 EPA 8260C1.0012085% Recovery103 5/29/16 RLDd8-Toluene 05/25/2016 16:20 14:13 EPA 8260C1.0011585% Recovery101 5/29/16 RLDDibromofluoromethane 05/25/2016 16:20 14:13 EPA 8260C1.0011879

Qualifiers applying to all Analytes of Method EPA 8081B: V ug/kg115 P 6/9/16 JJY4,4'-DDD 05/27/2016 14:00 17:44 ^43 EPA 8081B21 10.00436.4ug/kg27.6 P 6/9/16 JJY4,4'-DDE 05/27/2016 14:00 17:44 ^J43 EPA 8081B21 10.00436.4ug/kg25.5 P 6/9/16 JJY4,4'-DDT 05/27/2016 14:00 17:44 ^J43 EPA 8081B21 10.004311ug/kg<11 6/9/16 JJYAldrin 05/27/2016 14:00 17:44 ^U43 EPA 8081B21 10.004311ug/kg106 P 6/9/16 JJYalpha-BHC 05/27/2016 14:00 17:44 ^85 EPA 8081B43 10.008513ug/kg<6.4 Q 6/9/16 JJYalpha-Chlordane 05/27/2016 14:00 17:44 ^U43 EPA 8081B21 10.00436.4ug/kg<13 6/9/16 JJYbeta-BHC 05/27/2016 14:00 17:44 ^U85 EPA 8081B43 10.008513ug/kg<110 6/9/16 JJYChlordane (Technical) 05/27/2016 14:00 17:44 ^U850 EPA 8081B430 10.00850110ug/kg<6.4 6/9/16 JJYdelta-BHC 05/27/2016 14:00 17:44 ^U43 EPA 8081B21 10.00436.4ug/kg12.8 6/9/16 JJYDieldrin 05/27/2016 14:00 17:44 ^J43 EPA 8081B21 10.00436.4ug/kg<15 6/9/16 JJYEndosulfan I 05/27/2016 14:00 17:44 ^U85 EPA 8081B43 10.008515ug/kg<6.4 6/9/16 JJYEndosulfan II 05/27/2016 14:00 17:44 ^U43 EPA 8081B21 10.00436.4ug/kg<19 6/9/16 JJYEndosulfan sulfate 05/27/2016 14:00 17:44 ^U85 EPA 8081B43 10.008519ug/kg<8.5 6/9/16 JJYEndrin 05/27/2016 14:00 17:44 ^U43 EPA 8081B21 10.00438.5ug/kg<23 6/9/16 JJYEndrin aldehyde 05/27/2016 14:00 17:44 ^U85 EPA 8081B43 10.008523ug/kg<17 6/9/16 JJYEndrin ketone 05/27/2016 14:00 17:44 ^U85 EPA 8081B43 10.008517ug/kg<6.4 6/9/16 JJYgamma-Chlordane 05/27/2016 14:00 17:44 ^U43 EPA 8081B21 10.00436.4ug/kg<8.5 6/9/16 JJYHeptachlor 05/27/2016 14:00 17:44 ^U43 EPA 8081B21 10.00438.5ug/kg<11 6/9/16 JJYHeptachlor epoxide 05/27/2016 14:00 17:44 ^U43 EPA 8081B21 10.004311ug/kg<11 6/9/16 JJYLindane 05/27/2016 14:00 17:44 ^U43 EPA 8081B21 10.004311ug/kg<15 6/9/16 JJYMethoxychlor 05/27/2016 14:00 17:44 ^U85 EPA 8081B43 10.008515

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 57 of 212

Page 154: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 57 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728773

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1105

Analyte

Sample Description: GL-SD-05-052516

DODLOD

Client Sample #:

Qualifiers applying to all Analytes of Method EPA 8081B: V ug/kg<190 6/9/16 JJYToxaphene 05/27/2016 14:00 17:44 ^U850 EPA 8081B430 10.00850190% Recovery219 S 6/9/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 14:00 17:44 EPA 8081B10.0012570% Recovery94 6/9/16 JJYSURR:Decachlorobiphenyl 05/27/2016 14:00 17:44 EPA 8081B10.0013055ug/kg<30 6/2/16 RPN1,1'-Biphenyl 05/27/2016 14:00 19:38U250 EPA 8270D130 1.0025030ug/kg<46 6/2/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 14:00 19:38U250 EPA 8270D130 1.0025046ug/kg<270 6/2/16 RPN2,4,5-Trichlorophenol 05/27/2016 14:00 19:38 ^U1300 EPA 8270D630 1.001300270ug/kg<270 6/2/16 RPN2,4,6-Trichlorophenol 05/27/2016 14:00 19:38 ^U1300 EPA 8270D630 1.001300270ug/kg<250 6/2/16 RPN2,4-Dichlorophenol 05/27/2016 14:00 19:38 ^U1300 EPA 8270D630 1.001300250ug/kg<210 6/2/16 RPN2,4-Dimethylphenol 05/27/2016 14:00 19:38 ^U1300 EPA 8270D630 1.001300210ug/kg<570 6/2/16 RPN2,4-Dinitrophenol 05/27/2016 14:00 19:38 ^U2100 EPA 8270D1300 1.002100570ug/kg<51 6/2/16 RPN2,4-Dinitrotoluene 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025051ug/kg<51 6/2/16 RPN2,6-Dinitrotoluene 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025051ug/kg<48 6/2/16 RPN2-Chloronaphthalene 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025048ug/kg<720 6/2/16 RPN2-Chlorophenol 05/27/2016 14:00 19:38 ^U4200 EPA 8270D1300 1.004200720ug/kg<53 6/2/16 RPN2-Methylnaphthalene 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025053ug/kg<890 6/2/16 RPN2-Methylphenol 05/27/2016 14:00 19:38 ^U4200 EPA 8270D1300 1.004200890ug/kg<48 6/2/16 RPN2-Nitroaniline 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025048ug/kg<590 6/2/16 RPN2-Nitrophenol 05/27/2016 14:00 19:38 ^U2100 EPA 8270D630 1.002100590ug/kg<1400 6/2/16 RPN3 & 4-Methylphenol 05/27/2016 14:00 19:38 ^U7600 EPA 8270D2300 1.0076001400ug/kg<320 6/2/16 RPN3,3'-Dichlorobenzidine 05/27/2016 14:00 19:38 ^U1100 EPA 8270D320 1.001100320ug/kg<46 6/2/16 RPN3-Nitroaniline 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025046ug/kg<570 6/2/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 14:00 19:38 ^U2100 EPA 8270D630 1.002100570ug/kg<53 6/2/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025053ug/kg<800 6/2/16 RPN4-Chloro-3-methylphenol 05/27/2016 14:00 19:38 ^U4200 EPA 8270D1300 1.004200800ug/kg<82 6/2/16 RPN4-Chloroaniline 05/27/2016 14:00 19:38 ^U420 EPA 8270D130 1.0042082ug/kg<55 6/2/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025055

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 58 of 212

Page 155: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 58 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728773

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1105

Analyte

Sample Description: GL-SD-05-052516

DODLOD

Client Sample #:

ug/kg<63 6/2/16 RPN4-Nitroaniline 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025063ug/kg<840 6/2/16 RPN4-Nitrophenol 05/27/2016 14:00 19:38 ^U4200 EPA 8270D1300 1.004200840ug/kg<51 6/2/16 RPNAcenaphthene 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025051ug/kg<51 6/2/16 RPNAcenaphthylene 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025051ug/kg<160 6/2/16 RPNAcetophenone 05/27/2016 14:00 19:38 ^U840 EPA 8270D250 1.00840160ug/kg59.0 6/2/16 RPNAnthracene 05/27/2016 14:00 19:38 ^J250 EPA 8270D130 1.0025051ug/kg<30 6/2/16 RPNAtrazine 05/27/2016 14:00 19:38U250 EPA 8270D130 1.0025030ug/kg177 6/2/16 RPNBenzaldehyde 05/27/2016 14:00 19:38J250 EPA 8270D130 1.0025040ug/kg310 6/2/16 RPNBenzo(a)anthracene 05/27/2016 14:00 19:38 ^250 EPA 8270D130 1.0025053ug/kg255 6/2/16 RPNBenzo(a)pyrene 05/27/2016 14:00 19:38 ^250 EPA 8270D130 1.0025048ug/kg369 6/2/16 RPNBenzo(b)fluoranthene 05/27/2016 14:00 19:38 ^250 EPA 8270D130 1.0025053ug/kg190 6/2/16 RPNBenzo(g,h,i)perylene 05/27/2016 14:00 19:38 ^J250 EPA 8270D130 1.0025046ug/kg135 6/2/16 RPNBenzo(k)fluoranthene 05/27/2016 14:00 19:38 ^J250 EPA 8270D130 1.0025053ug/kg<48 6/2/16 RPNBis(2-chloroethoxy)methane 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025048ug/kg<53 6/2/16 RPNBis(2-chloroethyl)ether 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025053ug/kg<63 6/2/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025063ug/kg249 6/2/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 14:00 19:38 ^J840 EPA 8270D250 1.00840180ug/kg<150 6/2/16 RPNButylbenzylphthalate 05/27/2016 14:00 19:38 ^U840 EPA 8270D250 1.00840150ug/kg<160 6/2/16 RPNCaprolactam 05/27/2016 14:00 19:38U840 EPA 8270D250 1.00840160ug/kg<59 6/2/16 RPNCarbazole 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025059ug/kg344 6/2/16 RPNChrysene 05/27/2016 14:00 19:38 ^250 EPA 8270D130 1.0025053ug/kg<170 6/2/16 RPNDi-n-butylphthalate 05/27/2016 14:00 19:38 ^U840 EPA 8270D250 1.00840170ug/kg<120 6/2/16 RPNDi-n-octylphthalate 05/27/2016 14:00 19:38 ^U420 EPA 8270D130 1.00420120ug/kg75.9 6/2/16 RPNDibenzo(a,h)anthracene 05/27/2016 14:00 19:38 ^J250 EPA 8270D130 1.0025046ug/kg<51 6/2/16 RPNDibenzofuran 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025051ug/kg<130 6/2/16 RPNDiethylphthalate 05/27/2016 14:00 19:38 ^U840 EPA 8270D250 1.00840130ug/kg<130 6/2/16 RPNDimethylphthalate 05/27/2016 14:00 19:38 ^U840 EPA 8270D250 1.00840130ug/kg555 6/2/16 RPNFluoranthene 05/27/2016 14:00 19:38 ^250 EPA 8270D130 1.0025055

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 59 of 212

Page 156: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 59 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728773

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1105

Analyte

Sample Description: GL-SD-05-052516

DODLOD

Client Sample #:

ug/kg<53 6/2/16 RPNFluorene 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025053ug/kg<59 6/2/16 RPNHexachlorobenzene 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025059ug/kg<130 6/2/16 RPNHexachlorobutadiene 05/27/2016 14:00 19:38 ^U840 EPA 8270D250 1.00840130ug/kg<110 Q 6/2/16 RPNHexachlorocyclopentadiene 05/27/2016 14:00 19:38 ^U420 EPA 8270D250 1.00420110ug/kg<70 6/2/16 RPNHexachloroethane 05/27/2016 14:00 19:38 ^U250 EPA 8270D130 1.0025070ug/kg141 6/2/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 14:00 19:38 ^J250 EPA 8270D130 1.0025048ug/kg<110 6/2/16 RPNIsophorone 05/27/2016 14:00 19:38 ^U420 EPA 8270D130 1.00420110ug/kg<150 6/2/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 14:00 19:38 ^U840 EPA 8270D250 1.00840150ug/kg<110 6/2/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 14:00 19:38 ^U510 EPA 8270D250 1.00510110ug/kg46.4 6/2/16 RPNNaphthalene 05/27/2016 14:00 19:38 ^J250 EPA 8270D130 1.0025044ug/kg<120 6/2/16 RPNNitrobenzene 05/27/2016 14:00 19:38 ^U420 EPA 8270D130 1.00420120ug/kg<510 6/2/16 RPNPentachlorophenol 05/27/2016 14:00 19:38 ^U2100 EPA 8270D630 1.002100510ug/kg226 6/2/16 RPNPhenanthrene 05/27/2016 14:00 19:38 ^J250 EPA 8270D130 1.0025055ug/kg<340 6/2/16 RPNPhenol 05/27/2016 14:00 19:38 ^U1300 EPA 8270D630 1.001300340ug/kg483 6/2/16 RPNPyrene 05/27/2016 14:00 19:38 ^250 EPA 8270D130 1.0025055% Recovery67 6/2/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 14:00 19:38 ^EPA 8270D1.0012535% Recovery68 6/2/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 14:00 19:38 ^EPA 8270D1.0010545% Recovery59 6/2/16 RPNSurr: 2-Fluorophenol 05/27/2016 14:00 19:38 ^EPA 8270D1.0010535% Recovery72 6/2/16 RPNSurr: Nitrobenzene-d5 05/27/2016 14:00 19:38 ^EPA 8270D1.0010035% Recovery63 6/2/16 RPNSurr: Phenol-d5 05/27/2016 14:00 19:38 ^EPA 8270D1.0010040% Recovery72 6/2/16 RPNSurr: Terphenyl-d14 05/27/2016 14:00 19:38 ^EPA 8270D1.0012530ug/kg<11 6/2/16 JJYAroclor-1016 05/27/2016 14:00 22:14U64 EPA 8082A42 1.006411ug/kg<15 6/2/16 JJYAroclor-1221 05/27/2016 14:00 22:14U64 EPA 8082A42 1.006415ug/kg<19 6/2/16 JJYAroclor-1232 05/27/2016 14:00 22:14U64 EPA 8082A42 1.006419ug/kg<15 6/2/16 JJYAroclor-1242 05/27/2016 14:00 22:14U64 EPA 8082A42 1.006415ug/kg110 6/2/16 JJYAroclor-1248 05/27/2016 14:00 22:1464 EPA 8082A42 1.006415ug/kg178 6/2/16 JJYAroclor-1254 05/27/2016 14:00 22:1464 EPA 8082A42 1.006419ug/kg72.1 6/2/16 JJYAroclor-1260 05/27/2016 14:00 22:1464 EPA 8082A42 1.006413

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 60 of 212

Page 157: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 60 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728773

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1105

Analyte

Sample Description: GL-SD-05-052516

DODLOD

Client Sample #:

ug/kg<15 6/2/16 JJYAroclor-1262 05/27/2016 14:00 22:14U64 EPA 8082A42 1.006415ug/kg<11 6/2/16 JJYAroclor-1268 05/27/2016 14:00 22:14U64 EPA 8082A42 1.006411% Recovery121 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 14:00 22:14 EPA 8082A1.0013554% Recovery96 6/2/16 JJYSurr: DCBP 05/27/2016 14:00 22:14 EPA 8082A1.0014154

Sub Lab Results

ATTACHED 6/8/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 728774

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1145

Analyte

Sample Description: GL-SW-06-052516

DODLOD

Client Sample #:

Inorganic Results

S.U.7.29 6/1/16 SAWpH 14:20 ^0.1 EPA 9040C0.1 1.000.10.1

Metals Results

ug/L3760 6/2/16 NAHTotal Aluminum 05/31/2016 15:00 00:39 ^36 EPA 6010C18 1.00366.0ug/L<2.0 6/2/16 NAHTotal Antimony 05/31/2016 15:00 00:39 ^U12 EPA 6010C6.0 1.00122.0ug/L5.9 6/2/16 NAHTotal Arsenic 05/31/2016 15:00 00:39 ^J24 EPA 6010C12 1.00244.0ug/L237 6/2/16 NAHTotal Barium 05/31/2016 15:00 00:39 ^1.8 EPA 6010C0.90 1.001.80.29ug/L<0.10 6/2/16 NAHTotal Beryllium 05/31/2016 15:00 00:39 ^U0.60 EPA 6010C0.30 1.000.600.10ug/L<0.30 6/2/16 NAHTotal Cadmium 05/31/2016 15:00 00:39 ^U2.0 EPA 6010C1.0 1.002.00.30ug/L224000 6/2/16 NAHTotal Calcium 05/31/2016 15:00 00:39 ^100 EPA 6010C50 1.0010017ug/L6.7 6/2/16 NAHTotal Chromium 05/31/2016 15:00 00:39 ^4.0 EPA 6010C2.0 1.004.00.60ug/L5.7 6/2/16 NAHTotal Cobalt 05/31/2016 15:00 00:39 ^4.0 EPA 6010C2.0 1.004.00.70ug/L9.0 6/2/16 NAHTotal Copper 05/31/2016 15:00 00:39 ^7.0 EPA 6010C3.5 1.007.01.2ug/L13400 6/2/16 NAHTotal Iron 05/31/2016 15:00 00:39 ^100 EPA 6010C50 1.0010016

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 61 of 212

Page 158: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 61 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728774

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1145

Analyte

Sample Description: GL-SW-06-052516

DODLOD

Client Sample #:

ug/L2.8 6/2/16 NAHTotal Lead 05/31/2016 15:00 00:39 ^J4.0 EPA 6010C2.0 1.004.01.4ug/L99100 6/2/16 NAHTotal Magnesium 05/31/2016 15:00 00:39 ^40 EPA 6010C20 1.00406.0ug/L2040 6/2/16 NAHTotal Manganese 05/31/2016 15:00 00:39 ^4.0 EPA 6010C2.0 1.004.00.70ug/L16.8 6/2/16 NAHTotal Nickel 05/31/2016 15:00 00:39 ^6.0 EPA 6010C3.0 1.006.01.0ug/L5.1 6/2/16 NAHTotal Selenium 05/31/2016 15:00 00:39 ^J13 EPA 6010C6.5 1.00132.2ug/L<0.70 6/2/16 NAHTotal Silver 05/31/2016 15:00 00:39 ^U4.0 EPA 6010C2.0 1.004.00.70ug/L<2.5 6/2/16 NAHTotal Thallium 05/31/2016 15:00 00:39 ^U15 EPA 6010C7.5 1.00152.5ug/L9.0 6/2/16 NAHTotal Vanadium 05/31/2016 15:00 00:39 ^5.0 EPA 6010C2.5 1.005.00.80ug/L33.0 6/2/16 NAHTotal Zinc 05/31/2016 15:00 00:39 ^10 EPA 6010C5.0 1.00101.6ug/L45300 6/2/16 MDSTotal Potassium 05/31/2016 15:00 17:40 ^500 EPA 6010C250 1.0050090ug/L165000 6/2/16 MDSTotal Sodium 05/31/2016 15:00 17:40 ^600 EPA 6010C300 1.00600100ug/L<0.030 5/31/16 LJFTotal Mercury 05/27/2016 07:30 09:25 ^U0.12 EPA 7470A0.060 1.000.120.030

Organic Results

ug/L<0.21 5/31/16 AGK1,1,1-Trichloroethane 16:53 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.19 5/31/16 AGK1,1,2,2-Tetrachloroethane 16:53 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGK1,1,2-Trichloroethane 16:53 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.20 5/31/16 AGK1,1-Dichloroethane 16:53 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.24 5/31/16 AGK1,1-Dichloroethene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.30 5/31/16 AGK1,2,3-Trichlorobenzene 16:53 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.30 5/31/16 AGK1,2,4-Trichlorobenzene 16:53 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.40 5/31/16 AGK1,2-Dibromo-3-chloropropane 16:53 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.16 5/31/16 AGK1,2-Dibromoethane 16:53 ^U0.50 EPA 8260C0.25 1.000.500.16ug/L<0.23 5/31/16 AGK1,2-Dichlorobenzene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.30 5/31/16 AGK1,2-Dichloroethane 16:53 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGK1,2-Dichloropropane 16:53 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.26 5/31/16 AGK1,3-Dichlorobenzene 16:53 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.21 5/31/16 AGK1,4-Dichloro-2-butene 16:53U0.50 EPA 8260C0.25 1.000.500.21

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 62 of 212

Page 159: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 62 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728774

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1145

Analyte

Sample Description: GL-SW-06-052516

DODLOD

Client Sample #:

ug/L<5.0 Z,Q 5/31/16 AGK1,4-Dioxane 16:53U25 EPA 8260C13 1.00255.0ug/L<0.50 5/31/16 AGK112Trichloro122trifluoroethane 16:53U1.0 EPA 8260C0.50 1.001.00.50ug/L<2.4 5/31/16 AGK2-Butanone 16:53 ^U5.0 EPA 8260C2.5 1.005.02.4ug/L<4.0 5/31/16 AGK2-Hexanone 16:53 ^U10 EPA 8260C5.0 1.00104.0ug/L<3.0 5/31/16 AGK4-Methyl-2-pentanone 16:53 ^U10 EPA 8260C5.0 1.00103.0ug/L<5.0 5/31/16 AGKAcetone 16:53 ^U10 EPA 8260C5.0 1.00105.0ug/L<0.19 5/31/16 AGKBenzene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.19 5/31/16 AGKBromochloromethane 16:53 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.20 5/31/16 AGKBromodichloromethane 16:53 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.22 5/31/16 AGKBromoform 16:53 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.50 5/31/16 AGKBromomethane 16:53 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.50 5/31/16 AGKCarbon disulfide 16:53 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.23 5/31/16 AGKCarbon tetrachloride 16:53 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.24 5/31/16 AGKChlorobenzene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.40 5/31/16 AGKChloroethane 16:53 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.15 5/31/16 AGKChloroform 16:53 ^U0.50 EPA 8260C0.25 1.000.500.15ug/L<0.40 5/31/16 AGKChloromethane 16:53 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.25 5/31/16 AGKcis-1,2-Dichloroethene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKcis-1,3-Dichloropropene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.28 5/31/16 AGKCyclohexane 16:53U1.0 EPA 8260C0.50 1.001.00.28ug/L<0.19 5/31/16 AGKDibromochloromethane 16:53 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGKDichlorodifluoromethane 16:53 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.22 5/31/16 AGKEthylbenzene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.18 5/31/16 AGKIsopropylbenzene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.18ug/L<0.50 5/31/16 AGKm & p-Xylene 16:53 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.30 5/31/16 AGKMethyl acetate 16:53U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.29 5/31/16 AGKMethyl tert-butyl ether 16:53 ^U1.0 EPA 8260C0.50 1.001.00.29ug/L<0.23 5/31/16 AGKMethylcyclohexane 16:53U0.50 EPA 8260C0.25 1.000.500.23

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 63 of 212

Page 160: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 63 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728774

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1145

Analyte

Sample Description: GL-SW-06-052516

DODLOD

Client Sample #:

ug/L<0.40 5/31/16 AGKMethylene chloride 16:53 ^U2.0 EPA 8260C0.50 1.002.00.40ug/L<0.24 5/31/16 AGKo-Xylene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.20 5/31/16 AGKStyrene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.30 5/31/16 AGKTetrachloroethene 16:53 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGKToluene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.25 5/31/16 AGKtrans-1,2-Dichloroethene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKtrans-1,3-Dichloropropene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.21 5/31/16 AGKTrichloroethene 16:53 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.20 5/31/16 AGKTrichlorofluoromethane 16:53 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.18 5/31/16 AGKVinyl chloride 16:53 ^U0.50 EPA 8260C0.25 1.000.500.18% Recovery98 5/31/16 AGK1,2 Dichloroethane-d4 16:53 EPA 8260C1.0012070% Recovery99 5/31/16 AGKBromofluorobenzene 16:53 EPA 8260C1.0012075% Recovery99 5/31/16 AGKd8-Toluene 16:53 EPA 8260C1.0012085% Recovery97 5/31/16 AGKDibromofluoromethane 16:53 EPA 8260C1.0011585ug/L<0.0061 6/7/16 JJY4,4'-DDD 05/27/2016 11:00 03:36 ^U0.024 EPA 8081B0.010 1.000.0240.0061ug/L<0.0061 6/7/16 JJY4,4'-DDE 05/27/2016 11:00 03:36 ^U0.040 EPA 8081B0.010 1.000.0400.0061ug/L0.015 6/7/16 JJY4,4'-DDT 05/27/2016 11:00 03:36 ^J0.024 EPA 8081B0.010 1.000.0240.0071ug/L<0.0061 6/7/16 JJYAldrin 05/27/2016 11:00 03:36 ^U0.024 EPA 8081B0.010 1.000.0240.0061ug/L0.010 6/7/16 JJYalpha-BHC 05/27/2016 11:00 03:36 ^J0.024 EPA 8081B0.010 1.000.0240.0051ug/L<0.0091 6/7/16 JJYalpha-Chlordane 05/27/2016 11:00 03:36 ^U0.040 EPA 8081B0.010 1.000.0400.0091ug/L<0.0091 6/7/16 JJYbeta-BHC 05/27/2016 11:00 03:36 ^U0.040 EPA 8081B0.010 1.000.0400.0091ug/L<0.10 6/7/16 JJYChlordane (Technical) 05/27/2016 11:00 03:36 ^U0.61 EPA 8081B0.20 1.000.610.10ug/L0.0061 P 6/7/16 JJYdelta-BHC 05/27/2016 11:00 03:36 ^J0.024 EPA 8081B0.010 1.000.0240.0051ug/L0.0081 6/7/16 JJYDieldrin 05/27/2016 11:00 03:36 ^J0.024 EPA 8081B0.010 1.000.0240.0061ug/L<0.0091 Q 6/7/16 JJYEndosulfan I 05/27/2016 11:00 03:36 ^U0.040 EPA 8081B0.010 1.000.0400.0091ug/L<0.0071 6/7/16 JJYEndosulfan II 05/27/2016 11:00 03:36 ^U0.024 EPA 8081B0.010 1.000.0240.0071ug/L<0.0061 6/7/16 JJYEndosulfan sulfate 05/27/2016 11:00 03:36 ^U0.024 EPA 8081B0.010 1.000.0240.0061ug/L<0.0061 6/7/16 JJYEndrin 05/27/2016 11:00 03:36 ^U0.024 EPA 8081B0.010 1.000.0240.0061

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 64 of 212

Page 161: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 64 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728774

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1145

Analyte

Sample Description: GL-SW-06-052516

DODLOD

Client Sample #:

ug/L<0.0091 6/7/16 JJYEndrin aldehyde 05/27/2016 11:00 03:36 ^U0.040 EPA 8081B0.010 1.000.0400.0091ug/L0.0071 6/7/16 JJYEndrin ketone 05/27/2016 11:00 03:36 ^J0.024 EPA 8081B0.010 1.000.0240.0071ug/L0.0071 6/7/16 JJYgamma-Chlordane 05/27/2016 11:00 03:36 ^J0.024 EPA 8081B0.010 1.000.0240.0071ug/L0.0091 6/7/16 JJYHeptachlor 05/27/2016 11:00 03:36 ^J0.024 EPA 8081B0.010 1.000.0240.0061ug/L<0.0071 6/7/16 JJYHeptachlor epoxide 05/27/2016 11:00 03:36 ^U0.024 EPA 8081B0.010 1.000.0240.0071ug/L<0.0071 6/7/16 JJYLindane 05/27/2016 11:00 03:36 ^U0.024 EPA 8081B0.010 1.000.0240.0071ug/L<0.0061 6/7/16 JJYMethoxychlor 05/27/2016 11:00 03:36 ^U0.040 EPA 8081B0.010 1.000.0400.0061ug/L<0.18 6/7/16 JJYToxaphene 05/27/2016 11:00 03:36 ^U0.61 EPA 8081B0.20 1.000.610.18% Recovery61 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 11:00 03:36 EPA 8081B1.0014025% Recovery60 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 11:00 03:36 EPA 8081B1.0013530ug/L<0.16 6/1/16 RPN1,1'-Biphenyl 05/27/2016 15:00 20:07U1.0 EPA 8270D0.42 1.001.00.16ug/L<0.18 6/1/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 15:00 20:07U1.0 EPA 8270D0.42 1.001.00.18ug/L<1.1 6/1/16 RPN2,4,5-Trichlorophenol 05/27/2016 15:00 20:07 ^U5.2 EPA 8270D2.1 1.005.21.1ug/L<1.0 6/1/16 RPN2,4,6-Trichlorophenol 05/27/2016 15:00 20:07 ^U5.2 EPA 8270D2.1 1.005.21.0ug/L<1.0 6/1/16 RPN2,4-Dichlorophenol 05/27/2016 15:00 20:07 ^U5.2 EPA 8270D2.1 1.005.21.0ug/L<0.85 6/1/16 RPN2,4-Dimethylphenol 05/27/2016 15:00 20:07 ^U5.2 EPA 8270D2.1 1.005.20.85ug/L<1.6 6/1/16 RPN2,4-Dinitrophenol 05/27/2016 15:00 20:07 ^U10 EPA 8270D5.2 1.00101.6ug/L<0.22 6/1/16 RPN2,4-Dinitrotoluene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L<0.29 6/1/16 RPN2,6-Dinitrotoluene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.29ug/L<0.19 6/1/16 RPN2-Chloronaphthalene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.91 6/1/16 RPN2-Chlorophenol 05/27/2016 15:00 20:07 ^U5.2 EPA 8270D2.1 1.005.20.91ug/L<0.18 6/1/16 RPN2-Methylnaphthalene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.90 6/1/16 RPN2-Methylphenol 05/27/2016 15:00 20:07 ^U5.2 EPA 8270D2.1 1.005.20.90ug/L<0.23 6/1/16 RPN2-Nitroaniline 05/27/2016 15:00 20:07 ^U2.1 EPA 8270D0.42 1.002.10.23ug/L<0.94 6/1/16 RPN2-Nitrophenol 05/27/2016 15:00 20:07 ^U5.2 EPA 8270D2.1 1.005.20.94ug/L<1.5 6/1/16 RPN3 & 4-Methylphenol 05/27/2016 15:00 20:07 ^U9.4 EPA 8270D3.8 1.009.41.5ug/L<0.69 6/1/16 RPN3,3'-Dichlorobenzidine 05/27/2016 15:00 20:07 ^U2.6 EPA 8270D1.0 1.002.60.69ug/L<0.27 6/1/16 RPN3-Nitroaniline 05/27/2016 15:00 20:07 ^U2.1 EPA 8270D1.0 1.002.10.27

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 65 of 212

Page 162: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 65 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728774

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1145

Analyte

Sample Description: GL-SW-06-052516

DODLOD

Client Sample #:

ug/L<1.7 6/1/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 15:00 20:07 ^U10 EPA 8270D2.1 1.00101.7ug/L<0.21 6/1/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 15:00 20:07 ^U2.1 EPA 8270D0.42 1.002.10.21ug/L<0.83 6/1/16 RPN4-Chloro-3-methylphenol 05/27/2016 15:00 20:07 ^U5.2 EPA 8270D2.1 1.005.20.83ug/L<0.13 6/1/16 RPN4-Chloroaniline 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.13ug/L<0.19 6/1/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.16 6/1/16 RPN4-Nitroaniline 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.16ug/L<1.1 6/1/16 RPN4-Nitrophenol 05/27/2016 15:00 20:07 ^U10 EPA 8270D5.2 1.00101.1ug/L<0.19 6/1/16 RPNAcenaphthene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.18 6/1/16 RPNAcenaphthylene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.28 6/1/16 RPNAcetophenone 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.28ug/L<0.11 6/1/16 RPNAnthracene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.11ug/L<0.27 6/1/16 RPNAtrazine 05/27/2016 15:00 20:07U1.0 EPA 8270D0.42 1.001.00.27ug/L<0.26 6/1/16 RPNBenzaldehyde 05/27/2016 15:00 20:07U1.0 EPA 8270D0.42 1.001.00.26ug/L<0.13 6/1/16 RPNBenzo(a)anthracene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.13ug/L<0.15 6/1/16 RPNBenzo(a)pyrene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.15ug/L<0.18 6/1/16 RPNBenzo(b)fluoranthene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.22 6/1/16 RPNBenzo(g,h,i)perylene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L<0.21 6/1/16 RPNBenzo(k)fluoranthene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.21ug/L<0.20 6/1/16 RPNBis(2-chloroethoxy)methane 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.20ug/L<0.22 6/1/16 RPNBis(2-chloroethyl)ether 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L<0.23 6/1/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.23ug/L<0.46 6/1/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 15:00 20:07 ^U2.1 EPA 8270D1.0 1.002.10.46ug/L<0.49 6/1/16 RPNButylbenzylphthalate 05/27/2016 15:00 20:07 ^U2.1 EPA 8270D1.0 1.002.10.49ug/L<0.20 6/1/16 RPNCaprolactam 05/27/2016 15:00 20:07U2.1 EPA 8270D1.0 1.002.10.20ug/L<0.13 6/1/16 RPNCarbazole 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.13ug/L<0.17 6/1/16 RPNChrysene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.17ug/L<0.70 6/1/16 RPNDi-n-butylphthalate 05/27/2016 15:00 20:07 ^U4.2 EPA 8270D2.1 1.004.20.70ug/L<0.51 6/1/16 RPNDi-n-octylphthalate 05/27/2016 15:00 20:07 ^U2.1 EPA 8270D1.0 1.002.10.51

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 66 of 212

Page 163: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 66 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728774

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1145

Analyte

Sample Description: GL-SW-06-052516

DODLOD

Client Sample #:

ug/L<0.18 6/1/16 RPNDibenzo(a,h)anthracene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.20 6/1/16 RPNDibenzofuran 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.20ug/L<0.47 6/1/16 RPNDiethylphthalate 05/27/2016 15:00 20:07 ^U2.1 EPA 8270D1.0 1.002.10.47ug/L<0.56 6/1/16 RPNDimethylphthalate 05/27/2016 15:00 20:07 ^U2.1 EPA 8270D1.0 1.002.10.56ug/L<0.14 6/1/16 RPNFluoranthene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.14ug/L<0.20 6/1/16 RPNFluorene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.20ug/L<0.28 6/1/16 RPNHexachlorobenzene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.28ug/L<0.19 6/1/16 RPNHexachlorobutadiene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.27 6/1/16 RPNHexachlorocyclopentadiene 05/27/2016 15:00 20:07 ^U2.1 EPA 8270D1.0 1.002.10.27ug/L<0.23 6/1/16 RPNHexachloroethane 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.23ug/L<0.19 6/1/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.19 6/1/16 RPNIsophorone 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.19 6/1/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.38 6/1/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 15:00 20:07 ^U2.1 EPA 8270D0.83 1.002.10.38ug/L<0.19 6/1/16 RPNNaphthalene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.17 6/1/16 RPNNitrobenzene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.17ug/L<1.1 6/1/16 RPNPentachlorophenol 05/27/2016 15:00 20:07 ^U5.2 EPA 8270D2.1 1.005.21.1ug/L<0.31 6/1/16 RPNPhenanthrene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.31ug/L<0.50 6/1/16 RPNPhenol 05/27/2016 15:00 20:07 ^U5.2 EPA 8270D2.1 1.005.20.50ug/L<0.14 6/1/16 RPNPyrene 05/27/2016 15:00 20:07 ^U1.0 EPA 8270D0.42 1.001.00.14% Recovery58 6/1/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 15:00 20:07 ^EPA 8270D1.0012540% Recovery51 6/1/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 15:00 20:07 ^EPA 8270D1.0011050% Recovery32 6/1/16 RPNSurr: 2-Fluorophenol 05/27/2016 15:00 20:07 ^EPA 8270D1.0011020% Recovery53 6/1/16 RPNSurr: Nitrobenzene-d5 05/27/2016 15:00 20:07 ^EPA 8270D1.0011040% Recovery23 6/1/16 RPNSurr: Phenol-d5 05/27/2016 15:00 20:07 ^EPA 8270D1.0011510% Recovery56 6/1/16 RPNSurr: Terphenyl-d14 05/27/2016 15:00 20:07 ^EPA 8270D1.0013550ug/L<0.11 6/2/16 JJYAroclor-1016 05/27/2016 11:00 18:41U1.0 EPA 8082A0.30 1.001.00.11ug/L<0.086 6/2/16 JJYAroclor-1221 05/27/2016 11:00 18:41U1.0 EPA 8082A0.30 1.001.00.086

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 67 of 212

Page 164: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 67 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728774

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1145

Analyte

Sample Description: GL-SW-06-052516

DODLOD

Client Sample #:

ug/L<0.15 6/2/16 JJYAroclor-1232 05/27/2016 11:00 18:41U1.0 EPA 8082A0.30 1.001.00.15ug/L<0.097 6/2/16 JJYAroclor-1242 05/27/2016 11:00 18:41U1.0 EPA 8082A0.30 1.001.00.097ug/L<0.089 6/2/16 JJYAroclor-1248 05/27/2016 11:00 18:41U1.0 EPA 8082A0.30 1.001.00.089ug/L<0.095 6/2/16 JJYAroclor-1254 05/27/2016 11:00 18:41U1.0 EPA 8082A0.30 1.001.00.095ug/L<0.10 6/2/16 JJYAroclor-1260 05/27/2016 11:00 18:41U1.0 EPA 8082A0.30 1.001.00.10ug/L<0.28 6/2/16 JJYAroclor-1262 05/27/2016 11:00 18:41U1.0 EPA 8082A0.30 1.001.00.28ug/L<0.057 6/2/16 JJYAroclor-1268 05/27/2016 11:00 18:41U1.0 EPA 8082A0.30 1.001.00.057% Recovery83 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 11:00 18:41 EPA 8082A1.0013738% Recovery79 6/2/16 JJYSurr: DCBP 05/27/2016 11:00 18:41 EPA 8082A1.0014723

Sub Lab Results

ATTACHED 6/8/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 728775

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1150

Analyte

Sample Description: GL-SD-06-052516

DODLOD

Client Sample #:

Inorganic Results

%57.0 5/31/16 ABSSolids, Percent 11:100.1 EPA 8000C0.1 1.000.10.1mg/kg46200 6/1/16 JJFTotal Organic Carbon 12:57 ^3200 L-Kahn/9060A1600 1.003200530

Metals Results

mg/kg9680 6/1/16 NAHAluminum 05/31/2016 09:00 15:07 ^0.42 EPA 6010C0.21 1.000.420.069mg/kg0.35 6/1/16 NAHAntimony 05/31/2016 09:00 15:07 ^J1.4 EPA 6010C0.69 1.001.40.23mg/kg6.3 6/1/16 NAHArsenic 05/31/2016 09:00 15:07 ^1.4 EPA 6010C0.69 1.001.40.23mg/kg75.1 6/1/16 NAHBarium 05/31/2016 09:00 15:07 ^0.087 EPA 6010C0.043 1.000.0870.016mg/kg0.27 6/1/16 NAHBeryllium 05/31/2016 09:00 15:07 ^0.069 EPA 6010C0.021 1.000.0690.0069

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 68 of 212

Page 165: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 68 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728775

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1150

Analyte

Sample Description: GL-SD-06-052516

DODLOD

Client Sample #:

mg/kg0.13 6/1/16 NAHCadmium 05/31/2016 09:00 15:07 ^0.069 EPA 6010C0.035 1.000.0690.010mg/kg46500 6/2/16 NAHCalcium 05/31/2016 09:00 16:57 ^24 EPA 6010C12 10.00244.2mg/kg16.8 6/1/16 NAHChromium 05/31/2016 09:00 15:07 ^0.24 EPA 6010C0.12 1.000.240.040mg/kg9.6 6/1/16 NAHCobalt 05/31/2016 09:00 15:07 ^0.42 EPA 6010C0.21 1.000.420.069mg/kg22.4 6/1/16 NAHCopper 05/31/2016 09:00 15:07 ^0.69 EPA 6010C0.35 1.000.690.12mg/kg19600 6/1/16 NAHIron 05/31/2016 09:00 15:07 ^3.1 EPA 6010C1.6 1.003.10.52mg/kg20.5 6/1/16 NAHLead 05/31/2016 09:00 15:07 ^0.43 EPA 6010C0.22 1.000.430.069mg/kg17100 6/1/16 NAHMagnesium 05/31/2016 09:00 15:07 ^1.4 EPA 6010C0.69 1.001.40.24mg/kg682 6/1/16 NAHManganese 05/31/2016 09:00 15:07 ^0.26 EPA 6010C0.13 1.000.260.043mg/kg25.3 6/1/16 NAHNickel 05/31/2016 09:00 15:07 ^0.21 EPA 6010C0.10 1.000.210.036mg/kg0.66 6/1/16 NAHSelenium 05/31/2016 09:00 15:07 ^J0.69 EPA 6010C0.35 1.000.690.10mg/kg<0.030 6/1/16 NAHSilver 05/31/2016 09:00 15:07 ^U0.17 EPA 6010C0.087 1.000.170.030mg/kg<0.14 6/1/16 NAHThallium 05/31/2016 09:00 15:07 ^U0.83 EPA 6010C0.42 1.000.830.14mg/kg22.2 6/1/16 NAHVanadium 05/31/2016 09:00 15:07 ^0.14 EPA 6010C0.069 1.000.140.021mg/kg132 6/1/16 NAHZinc 05/31/2016 09:00 15:07 ^0.52 EPA 6010C0.26 1.000.520.087mg/kg1660 6/2/16 MDSPotassium 05/31/2016 09:00 14:38 ^110 EPA 6010C57 1.0011019mg/kg215 6/2/16 MDSSodium 05/31/2016 09:00 14:38 ^42 EPA 6010C21 1.00426.9mg/kg0.030 5/31/16 LJFMercury 05/27/2016 12:00 14:30 ^0.015 EPA 7471B0.0075 1.000.0150.0037

Organic ResultsVOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<10 5/29/16 RLD1,1,1-Trichloroethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005210ug/kg<6.2 5/29/16 RLD1,1,2,2-Tetrachloroethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00526.2ug/kg<8.3 5/29/16 RLD1,1,2-Trichloroethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00528.3ug/kg<11 5/29/16 RLD1,1-Dichloroethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005211ug/kg<17 5/29/16 RLD1,1-Dichloroethene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005217ug/kg<8.3 5/29/16 RLD1,2,3-Trichlorobenzene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00528.3

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 69 of 212

Page 166: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 69 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728775

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1150

Analyte

Sample Description: GL-SD-06-052516

DODLOD

Client Sample #:

VOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<9.3 5/29/16 RLD1,2,4-Trichlorobenzene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00529.3ug/kg<12 5/29/16 RLD1,2-Dibromo-3-chloropropane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005212ug/kg<10 5/29/16 RLD1,2-Dibromoethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005210ug/kg<9.3 5/29/16 RLD1,2-Dichlorobenzene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00529.3ug/kg<12 5/29/16 RLD1,2-Dichloroethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005212ug/kg<7.2 5/29/16 RLD1,2-Dichloropropane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00527.2ug/kg<8.3 5/29/16 RLD1,3-Dichlorobenzene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00528.3ug/kg<9.3 5/29/16 RLD1,4-Dichloro-2-butene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00529.3ug/kg<410 5/29/16 RLD1,4-Dioxane 05/25/2016 16:20 14:42 ^U5200 EPA 8260C1000 1.005200410ug/kg<21 5/29/16 RLD112Trichloro122trifluoroethane 05/25/2016 16:20 14:42 ^U100 EPA 8260C41 1.0010021ug/kg<100 5/29/16 RLD2-Butanone 05/25/2016 16:20 14:42 ^U520 EPA 8260C210 1.00520100ug/kg<70 5/29/16 RLD2-Hexanone 05/25/2016 16:20 14:42 ^U520 EPA 8260C210 1.0052070ug/kg<85 5/29/16 RLD4-Methyl-2-pentanone 05/25/2016 16:20 14:42 ^U520 EPA 8260C210 1.0052085ug/kg66.2 5/29/16 RLDAcetone 05/25/2016 16:20 14:42 ^J520 EPA 8260C210 1.0052065ug/kg<5.2 5/29/16 RLDBenzene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00525.2ug/kg<8.3 5/29/16 RLDBromochloromethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00528.3ug/kg<9.3 5/29/16 RLDBromodichloromethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00529.3ug/kg<6.2 5/29/16 RLDBromoform 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00526.2ug/kg<31 5/29/16 RLDBromomethane 05/25/2016 16:20 14:42 ^U100 EPA 8260C52 1.0010031ug/kg<16 5/29/16 RLDCarbon disulfide 05/25/2016 16:20 14:42 ^U100 EPA 8260C41 1.0010016ug/kg<11 5/29/16 RLDCarbon tetrachloride 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005211ug/kg<8.3 5/29/16 RLDChlorobenzene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00528.3ug/kg<20 5/29/16 RLDChloroethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005220ug/kg<9.3 5/29/16 RLDChloroform 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00529.3ug/kg<26 5/29/16 RLDChloromethane 05/25/2016 16:20 14:42 ^U100 EPA 8260C52 1.0010026ug/kg<10 5/29/16 RLDcis-1,2-Dichloroethene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005210

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 70 of 212

Page 167: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 70 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728775

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1150

Analyte

Sample Description: GL-SD-06-052516

DODLOD

Client Sample #:

VOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<10 5/29/16 RLDcis-1,3-Dichloropropene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005210ug/kg<12 5/29/16 RLDCyclohexane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005212ug/kg<8.3 5/29/16 RLDDibromochloromethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00528.3ug/kg<13 5/29/16 RLDDichlorodifluoromethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005213ug/kg<8.3 5/29/16 RLDEthylbenzene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00528.3ug/kg<8.3 5/29/16 RLDIsopropylbenzene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00528.3ug/kg<19 5/29/16 RLDm & p-Xylene 05/25/2016 16:20 14:42 ^U100 EPA 8260C41 1.0010019ug/kg465 5/29/16 RLDMethyl acetate 05/25/2016 16:20 14:42 ^52 EPA 8260C21 1.005212ug/kg<29 5/29/16 RLDMethyl tert-butyl ether 05/25/2016 16:20 14:42 ^U100 EPA 8260C52 1.0010029ug/kg<9.3 5/29/16 RLDMethylcyclohexane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00529.3ug/kg<41 5/29/16 RLDMethylene chloride 05/25/2016 16:20 14:42 ^U100 EPA 8260C52 1.0010041ug/kg<8.3 5/29/16 RLDo-Xylene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00528.3ug/kg<6.2 5/29/16 RLDStyrene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00526.2ug/kg<8.3 5/29/16 RLDTetrachloroethene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00528.3ug/kg<7.2 5/29/16 RLDToluene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00527.2ug/kg<11 5/29/16 RLDtrans-1,2-Dichloroethene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005211ug/kg<7.2 5/29/16 RLDtrans-1,3-Dichloropropene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.00527.2ug/kg<10 5/29/16 RLDTrichloroethene 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005210ug/kg<13 5/29/16 RLDTrichlorofluoromethane 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005213ug/kg<14 5/29/16 RLDVinyl chloride 05/25/2016 16:20 14:42 ^U52 EPA 8260C21 1.005214% Recovery104 5/29/16 RLD1,2 Dichloroethane-d4 05/25/2016 16:20 14:42 EPA 8260C1.0011780% Recovery101 5/29/16 RLDBromofluorobenzene 05/25/2016 16:20 14:42 EPA 8260C1.0012085% Recovery102 5/29/16 RLDd8-Toluene 05/25/2016 16:20 14:42 EPA 8260C1.0011585% Recovery97 5/29/16 RLDDibromofluoromethane 05/25/2016 16:20 14:42 EPA 8260C1.0011879

Qualifiers applying to all Analytes of Method EPA 8081B: V

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 71 of 212

Page 168: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 71 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728775

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1150

Analyte

Sample Description: GL-SD-06-052516

DODLOD

Client Sample #:

Qualifiers applying to all Analytes of Method EPA 8081B: V ug/kg52.3 P 6/9/16 JJY4,4'-DDD 05/27/2016 14:00 18:01 ^35 EPA 8081B17 10.00355.2ug/kg19.2 P 6/9/16 JJY4,4'-DDE 05/27/2016 14:00 18:01 ^J35 EPA 8081B17 10.00355.2ug/kg<8.7 6/9/16 JJY4,4'-DDT 05/27/2016 14:00 18:01 ^U35 EPA 8081B17 10.00358.7ug/kg<8.7 6/9/16 JJYAldrin 05/27/2016 14:00 18:01 ^U35 EPA 8081B17 10.00358.7ug/kg<10 6/9/16 JJYalpha-BHC 05/27/2016 14:00 18:01 ^U70 EPA 8081B35 10.007010ug/kg<5.2 Q 6/9/16 JJYalpha-Chlordane 05/27/2016 14:00 18:01 ^U35 EPA 8081B17 10.00355.2ug/kg<10 6/9/16 JJYbeta-BHC 05/27/2016 14:00 18:01 ^U70 EPA 8081B35 10.007010ug/kg<87 6/9/16 JJYChlordane (Technical) 05/27/2016 14:00 18:01 ^U700 EPA 8081B350 10.0070087ug/kg22.6 P 6/9/16 JJYdelta-BHC 05/27/2016 14:00 18:01 ^J35 EPA 8081B17 10.00355.2ug/kg10.5 6/9/16 JJYDieldrin 05/27/2016 14:00 18:01 ^J35 EPA 8081B17 10.00355.2ug/kg<12 6/9/16 JJYEndosulfan I 05/27/2016 14:00 18:01 ^U70 EPA 8081B35 10.007012ug/kg<5.2 6/9/16 JJYEndosulfan II 05/27/2016 14:00 18:01 ^U35 EPA 8081B17 10.00355.2ug/kg<16 6/9/16 JJYEndosulfan sulfate 05/27/2016 14:00 18:01 ^U70 EPA 8081B35 10.007016ug/kg<7.0 6/9/16 JJYEndrin 05/27/2016 14:00 18:01 ^U35 EPA 8081B17 10.00357.0ug/kg<19 6/9/16 JJYEndrin aldehyde 05/27/2016 14:00 18:01 ^U70 EPA 8081B35 10.007019ug/kg<14 6/9/16 JJYEndrin ketone 05/27/2016 14:00 18:01 ^U70 EPA 8081B35 10.007014ug/kg<5.2 6/9/16 JJYgamma-Chlordane 05/27/2016 14:00 18:01 ^U35 EPA 8081B17 10.00355.2ug/kg10.5 6/9/16 JJYHeptachlor 05/27/2016 14:00 18:01 ^J35 EPA 8081B17 10.00357.0ug/kg<8.7 6/9/16 JJYHeptachlor epoxide 05/27/2016 14:00 18:01 ^U35 EPA 8081B17 10.00358.7ug/kg12.2 6/9/16 JJYLindane 05/27/2016 14:00 18:01 ^J35 EPA 8081B17 10.00358.7ug/kg<12 6/9/16 JJYMethoxychlor 05/27/2016 14:00 18:01 ^U70 EPA 8081B35 10.007012ug/kg<160 6/9/16 JJYToxaphene 05/27/2016 14:00 18:01 ^U700 EPA 8081B350 10.00700160% Recovery152 S 6/9/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 14:00 18:01 EPA 8081B10.0012570% Recovery88 6/9/16 JJYSURR:Decachlorobiphenyl 05/27/2016 14:00 18:01 EPA 8081B10.0013055ug/kg<24 6/2/16 RPN1,1'-Biphenyl 05/27/2016 14:00 20:00U210 EPA 8270D100 1.0021024ug/kg<38 6/2/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 14:00 20:00U210 EPA 8270D100 1.0021038

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 72 of 212

Page 169: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 72 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728775

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1150

Analyte

Sample Description: GL-SD-06-052516

DODLOD

Client Sample #:

ug/kg<230 6/2/16 RPN2,4,5-Trichlorophenol 05/27/2016 14:00 20:00 ^U1000 EPA 8270D520 1.001000230ug/kg<230 6/2/16 RPN2,4,6-Trichlorophenol 05/27/2016 14:00 20:00 ^U1000 EPA 8270D520 1.001000230ug/kg<210 6/2/16 RPN2,4-Dichlorophenol 05/27/2016 14:00 20:00 ^U1000 EPA 8270D520 1.001000210ug/kg<170 6/2/16 RPN2,4-Dimethylphenol 05/27/2016 14:00 20:00 ^U1000 EPA 8270D520 1.001000170ug/kg<470 6/2/16 RPN2,4-Dinitrophenol 05/27/2016 14:00 20:00 ^U1700 EPA 8270D1000 1.001700470ug/kg<42 6/2/16 RPN2,4-Dinitrotoluene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021042ug/kg<42 6/2/16 RPN2,6-Dinitrotoluene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021042ug/kg<40 6/2/16 RPN2-Chloronaphthalene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021040ug/kg<590 6/2/16 RPN2-Chlorophenol 05/27/2016 14:00 20:00 ^U3500 EPA 8270D1000 1.003500590ug/kg<44 6/2/16 RPN2-Methylnaphthalene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021044ug/kg<730 6/2/16 RPN2-Methylphenol 05/27/2016 14:00 20:00 ^U3500 EPA 8270D1000 1.003500730ug/kg<40 6/2/16 RPN2-Nitroaniline 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021040ug/kg<490 6/2/16 RPN2-Nitrophenol 05/27/2016 14:00 20:00 ^U1700 EPA 8270D520 1.001700490ug/kg<1100 6/2/16 RPN3 & 4-Methylphenol 05/27/2016 14:00 20:00 ^U6300 EPA 8270D1900 1.0063001100ug/kg<260 6/2/16 RPN3,3'-Dichlorobenzidine 05/27/2016 14:00 20:00 ^U870 EPA 8270D260 1.00870260ug/kg<38 6/2/16 RPN3-Nitroaniline 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021038ug/kg<470 6/2/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 14:00 20:00 ^U1700 EPA 8270D520 1.001700470ug/kg<44 6/2/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021044ug/kg<660 6/2/16 RPN4-Chloro-3-methylphenol 05/27/2016 14:00 20:00 ^U3500 EPA 8270D1000 1.003500660ug/kg<68 6/2/16 RPN4-Chloroaniline 05/27/2016 14:00 20:00 ^U350 EPA 8270D100 1.0035068ug/kg<45 6/2/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021045ug/kg<52 6/2/16 RPN4-Nitroaniline 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021052ug/kg<700 6/2/16 RPN4-Nitrophenol 05/27/2016 14:00 20:00 ^U3500 EPA 8270D1000 1.003500700ug/kg<42 6/2/16 RPNAcenaphthene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021042ug/kg<42 6/2/16 RPNAcenaphthylene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021042ug/kg<130 6/2/16 RPNAcetophenone 05/27/2016 14:00 20:00 ^U700 EPA 8270D210 1.00700130ug/kg<42 6/2/16 RPNAnthracene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021042ug/kg<24 6/2/16 RPNAtrazine 05/27/2016 14:00 20:00U210 EPA 8270D100 1.0021024

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 73 of 212

Page 170: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 73 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728775

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1150

Analyte

Sample Description: GL-SD-06-052516

DODLOD

Client Sample #:

ug/kg136 6/2/16 RPNBenzaldehyde 05/27/2016 14:00 20:00J210 EPA 8270D100 1.0021033ug/kg68.1 6/2/16 RPNBenzo(a)anthracene 05/27/2016 14:00 20:00 ^J210 EPA 8270D100 1.0021044ug/kg59.4 6/2/16 RPNBenzo(a)pyrene 05/27/2016 14:00 20:00 ^J210 EPA 8270D100 1.0021040ug/kg99.6 6/2/16 RPNBenzo(b)fluoranthene 05/27/2016 14:00 20:00 ^J210 EPA 8270D100 1.0021044ug/kg59.4 6/2/16 RPNBenzo(g,h,i)perylene 05/27/2016 14:00 20:00 ^J210 EPA 8270D100 1.0021038ug/kg<44 6/2/16 RPNBenzo(k)fluoranthene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021044ug/kg<40 6/2/16 RPNBis(2-chloroethoxy)methane 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021040ug/kg<44 6/2/16 RPNBis(2-chloroethyl)ether 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021044ug/kg<52 6/2/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021052ug/kg197 6/2/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 14:00 20:00 ^J700 EPA 8270D210 1.00700150ug/kg<130 6/2/16 RPNButylbenzylphthalate 05/27/2016 14:00 20:00 ^U700 EPA 8270D210 1.00700130ug/kg<130 6/2/16 RPNCaprolactam 05/27/2016 14:00 20:00U700 EPA 8270D210 1.00700130ug/kg<49 6/2/16 RPNCarbazole 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021049ug/kg115 6/2/16 RPNChrysene 05/27/2016 14:00 20:00 ^J210 EPA 8270D100 1.0021044ug/kg<140 6/2/16 RPNDi-n-butylphthalate 05/27/2016 14:00 20:00 ^U700 EPA 8270D210 1.00700140ug/kg<100 6/2/16 RPNDi-n-octylphthalate 05/27/2016 14:00 20:00 ^U350 EPA 8270D100 1.00350100ug/kg<38 6/2/16 RPNDibenzo(a,h)anthracene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021038ug/kg<42 6/2/16 RPNDibenzofuran 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021042ug/kg<110 6/2/16 RPNDiethylphthalate 05/27/2016 14:00 20:00 ^U700 EPA 8270D210 1.00700110ug/kg<110 6/2/16 RPNDimethylphthalate 05/27/2016 14:00 20:00 ^U700 EPA 8270D210 1.00700110ug/kg122 6/2/16 RPNFluoranthene 05/27/2016 14:00 20:00 ^J210 EPA 8270D100 1.0021045ug/kg<44 6/2/16 RPNFluorene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021044ug/kg<49 6/2/16 RPNHexachlorobenzene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021049ug/kg<110 6/2/16 RPNHexachlorobutadiene 05/27/2016 14:00 20:00 ^U700 EPA 8270D210 1.00700110ug/kg<91 Q 6/2/16 RPNHexachlorocyclopentadiene 05/27/2016 14:00 20:00 ^U350 EPA 8270D210 1.0035091ug/kg<58 6/2/16 RPNHexachloroethane 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021058ug/kg<40 6/2/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021040ug/kg<87 6/2/16 RPNIsophorone 05/27/2016 14:00 20:00 ^U350 EPA 8270D100 1.0035087

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 74 of 212

Page 171: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 74 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728775

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1150

Analyte

Sample Description: GL-SD-06-052516

DODLOD

Client Sample #:

ug/kg<120 6/2/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 14:00 20:00 ^U700 EPA 8270D210 1.00700120ug/kg<87 6/2/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 14:00 20:00 ^U420 EPA 8270D210 1.0042087ug/kg<37 6/2/16 RPNNaphthalene 05/27/2016 14:00 20:00 ^U210 EPA 8270D100 1.0021037ug/kg<100 6/2/16 RPNNitrobenzene 05/27/2016 14:00 20:00 ^U350 EPA 8270D100 1.00350100ug/kg<420 6/2/16 RPNPentachlorophenol 05/27/2016 14:00 20:00 ^U1700 EPA 8270D520 1.001700420ug/kg85.6 6/2/16 RPNPhenanthrene 05/27/2016 14:00 20:00 ^J210 EPA 8270D100 1.0021045ug/kg<280 6/2/16 RPNPhenol 05/27/2016 14:00 20:00 ^U1000 EPA 8270D520 1.001000280ug/kg112 6/2/16 RPNPyrene 05/27/2016 14:00 20:00 ^J210 EPA 8270D100 1.0021045% Recovery67 6/2/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 14:00 20:00 ^EPA 8270D1.0012535% Recovery73 6/2/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 14:00 20:00 ^EPA 8270D1.0010545% Recovery64 6/2/16 RPNSurr: 2-Fluorophenol 05/27/2016 14:00 20:00 ^EPA 8270D1.0010535% Recovery78 6/2/16 RPNSurr: Nitrobenzene-d5 05/27/2016 14:00 20:00 ^EPA 8270D1.0010035% Recovery67 6/2/16 RPNSurr: Phenol-d5 05/27/2016 14:00 20:00 ^EPA 8270D1.0010040% Recovery77 6/2/16 RPNSurr: Terphenyl-d14 05/27/2016 14:00 20:00 ^EPA 8270D1.0012530ug/kg<8.7 6/2/16 JJYAroclor-1016 05/27/2016 14:00 22:33U52 EPA 8082A35 1.00528.7ug/kg<12 6/2/16 JJYAroclor-1221 05/27/2016 14:00 22:33U52 EPA 8082A35 1.005212ug/kg<16 6/2/16 JJYAroclor-1232 05/27/2016 14:00 22:33U52 EPA 8082A35 1.005216ug/kg<12 6/2/16 JJYAroclor-1242 05/27/2016 14:00 22:33U52 EPA 8082A35 1.005212ug/kg81.6 6/2/16 JJYAroclor-1248 05/27/2016 14:00 22:3352 EPA 8082A35 1.005212ug/kg79.9 6/2/16 JJYAroclor-1254 05/27/2016 14:00 22:3352 EPA 8082A35 1.005216ug/kg38.2 6/2/16 JJYAroclor-1260 05/27/2016 14:00 22:33J52 EPA 8082A35 1.005210ug/kg<12 6/2/16 JJYAroclor-1262 05/27/2016 14:00 22:33U52 EPA 8082A35 1.005212ug/kg<8.7 6/2/16 JJYAroclor-1268 05/27/2016 14:00 22:33U52 EPA 8082A35 1.00528.7% Recovery113 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 14:00 22:33 EPA 8082A1.0013554% Recovery85 6/2/16 JJYSurr: DCBP 05/27/2016 14:00 22:33 EPA 8082A1.0014154

Sub Lab Results

ATTACHED 6/8/16 SUBHerbicides 00:00 SW81511.00

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 75 of 212

Page 172: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 75 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728775

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1150

Analyte

Sample Description: GL-SD-06-052516

DODLOD

Client Sample #:

CT LAB#: 728776

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1215

Analyte

Sample Description: GL-SD-07-052516

DODLOD

Client Sample #:

Inorganic Results

%71.4 5/31/16 ABSSolids, Percent 11:100.1 EPA 8000C0.1 1.000.10.1mg/kg39000 6/1/16 JJFTotal Organic Carbon 13:19 ^2500 L-Kahn/9060A1300 1.002500420

Metals Results

mg/kg9610 6/1/16 NAHAluminum 05/31/2016 09:00 15:34 ^0.34 EPA 6010C0.17 1.000.340.057mg/kg0.32 6/1/16 NAHAntimony 05/31/2016 09:00 15:34 ^J1.1 EPA 6010C0.57 1.001.10.19mg/kg6.2 6/1/16 NAHArsenic 05/31/2016 09:00 15:34 ^1.1 EPA 6010C0.57 1.001.10.19mg/kg75.7 6/1/16 NAHBarium 05/31/2016 09:00 15:34 ^0.071 EPA 6010C0.036 1.000.0710.013mg/kg0.30 6/1/16 NAHBeryllium 05/31/2016 09:00 15:34 ^0.057 EPA 6010C0.017 1.000.0570.0057mg/kg0.44 6/1/16 NAHCadmium 05/31/2016 09:00 15:34 ^0.057 EPA 6010C0.029 1.000.0570.0086mg/kg69000 6/2/16 NAHCalcium 05/31/2016 09:00 17:04 ^20 EPA 6010C10 10.00203.4mg/kg17.4 6/1/16 NAHChromium 05/31/2016 09:00 15:34 ^0.20 EPA 6010C0.10 1.000.200.033mg/kg10.0 6/1/16 NAHCobalt 05/31/2016 09:00 15:34 ^0.34 EPA 6010C0.17 1.000.340.057mg/kg23.5 6/1/16 NAHCopper 05/31/2016 09:00 15:34 ^0.57 EPA 6010C0.29 1.000.570.10mg/kg19300 6/1/16 NAHIron 05/31/2016 09:00 15:34 ^2.6 EPA 6010C1.3 1.002.60.43mg/kg27.1 6/1/16 NAHLead 05/31/2016 09:00 15:34 ^0.36 EPA 6010C0.18 1.000.360.057mg/kg17300 6/1/16 NAHMagnesium 05/31/2016 09:00 15:34 ^1.1 EPA 6010C0.57 1.001.10.20mg/kg514 6/1/16 NAHManganese 05/31/2016 09:00 15:34 ^0.21 EPA 6010C0.11 1.000.210.036mg/kg26.0 6/1/16 NAHNickel 05/31/2016 09:00 15:34 ^0.17 EPA 6010C0.086 1.000.170.030mg/kg0.24 6/1/16 NAHSelenium 05/31/2016 09:00 15:34 ^J0.57 EPA 6010C0.29 1.000.570.086mg/kg<0.024 6/1/16 NAHSilver 05/31/2016 09:00 15:34 ^U0.14 EPA 6010C0.071 1.000.140.024mg/kg<0.11 6/1/16 NAHThallium 05/31/2016 09:00 15:34 ^U0.69 EPA 6010C0.34 1.000.690.11

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 76 of 212

Page 173: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 76 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728776

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1215

Analyte

Sample Description: GL-SD-07-052516

DODLOD

Client Sample #:

mg/kg20.9 6/1/16 NAHVanadium 05/31/2016 09:00 15:34 ^0.11 EPA 6010C0.057 1.000.110.017mg/kg113 6/1/16 NAHZinc 05/31/2016 09:00 15:34 ^0.43 EPA 6010C0.21 1.000.430.071mg/kg1690 6/2/16 MDSPotassium 05/31/2016 09:00 14:41 ^94 EPA 6010C47 1.009416mg/kg137 6/2/16 MDSSodium 05/31/2016 09:00 14:41 ^34 EPA 6010C17 1.00345.7mg/kg0.032 5/31/16 LJFMercury 05/27/2016 12:00 14:32 ^0.012 EPA 7471B0.0061 1.000.0120.0030

Organic Results

ug/kg<6.9 5/29/16 RLD1,1,1-Trichloroethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00346.9ug/kg<4.1 5/29/16 RLD1,1,2,2-Tetrachloroethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00344.1ug/kg<5.5 5/29/16 RLD1,1,2-Trichloroethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00345.5ug/kg<7.5 5/29/16 RLD1,1-Dichloroethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00347.5ug/kg<11 5/29/16 RLD1,1-Dichloroethene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.003411ug/kg<5.5 5/29/16 RLD1,2,3-Trichlorobenzene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00345.5ug/kg<6.2 5/29/16 RLD1,2,4-Trichlorobenzene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00346.2ug/kg<8.2 5/29/16 RLD1,2-Dibromo-3-chloropropane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00348.2ug/kg<6.9 5/29/16 RLD1,2-Dibromoethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00346.9ug/kg<6.2 5/29/16 RLD1,2-Dichlorobenzene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00346.2ug/kg<8.2 5/29/16 RLD1,2-Dichloroethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00348.2ug/kg<4.8 5/29/16 RLD1,2-Dichloropropane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00344.8ug/kg<5.5 5/29/16 RLD1,3-Dichlorobenzene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00345.5ug/kg<6.2 5/29/16 RLD1,4-Dichloro-2-butene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00346.2ug/kg<270 5/29/16 RLD1,4-Dioxane 05/25/2016 16:20 15:10 ^U3400 EPA 8260C690 1.003400270ug/kg<14 5/29/16 RLD112Trichloro122trifluoroethane 05/25/2016 16:20 15:10 ^U69 EPA 8260C27 1.006914ug/kg<69 5/29/16 RLD2-Butanone 05/25/2016 16:20 15:10 ^U340 EPA 8260C140 1.0034069ug/kg<47 5/29/16 RLD2-Hexanone 05/25/2016 16:20 15:10 ^U340 EPA 8260C140 1.0034047ug/kg<56 5/29/16 RLD4-Methyl-2-pentanone 05/25/2016 16:20 15:10 ^U340 EPA 8260C140 1.0034056ug/kg52.3 5/29/16 RLDAcetone 05/25/2016 16:20 15:10 ^J340 EPA 8260C140 1.0034043ug/kg<3.4 5/29/16 RLDBenzene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00343.4

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 77 of 212

Page 174: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 77 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728776

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1215

Analyte

Sample Description: GL-SD-07-052516

DODLOD

Client Sample #:

ug/kg<5.5 5/29/16 RLDBromochloromethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00345.5ug/kg<6.2 5/29/16 RLDBromodichloromethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00346.2ug/kg<4.1 5/29/16 RLDBromoform 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00344.1ug/kg<21 5/29/16 RLDBromomethane 05/25/2016 16:20 15:10 ^U69 EPA 8260C34 1.006921ug/kg<10 5/29/16 RLDCarbon disulfide 05/25/2016 16:20 15:10 ^U69 EPA 8260C27 1.006910ug/kg<7.5 5/29/16 RLDCarbon tetrachloride 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00347.5ug/kg<5.5 5/29/16 RLDChlorobenzene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00345.5ug/kg<13 5/29/16 RLDChloroethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.003413ug/kg<6.2 5/29/16 RLDChloroform 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00346.2ug/kg<17 5/29/16 RLDChloromethane 05/25/2016 16:20 15:10 ^U69 EPA 8260C34 1.006917ug/kg<6.9 5/29/16 RLDcis-1,2-Dichloroethene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00346.9ug/kg<6.9 5/29/16 RLDcis-1,3-Dichloropropene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00346.9ug/kg<8.2 5/29/16 RLDCyclohexane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00348.2ug/kg<5.5 5/29/16 RLDDibromochloromethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00345.5ug/kg<8.9 5/29/16 RLDDichlorodifluoromethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00348.9ug/kg<5.5 5/29/16 RLDEthylbenzene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00345.5ug/kg<5.5 5/29/16 RLDIsopropylbenzene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00345.5ug/kg<12 5/29/16 RLDm & p-Xylene 05/25/2016 16:20 15:10 ^U69 EPA 8260C27 1.006912ug/kg183 5/29/16 RLDMethyl acetate 05/25/2016 16:20 15:10 ^34 EPA 8260C14 1.00348.2ug/kg<19 5/29/16 RLDMethyl tert-butyl ether 05/25/2016 16:20 15:10 ^U69 EPA 8260C34 1.006919ug/kg<6.2 5/29/16 RLDMethylcyclohexane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00346.2ug/kg<27 5/29/16 RLDMethylene chloride 05/25/2016 16:20 15:10 ^U69 EPA 8260C34 1.006927ug/kg<5.5 5/29/16 RLDo-Xylene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00345.5ug/kg<4.1 5/29/16 RLDStyrene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00344.1ug/kg5.69 5/29/16 RLDTetrachloroethene 05/25/2016 16:20 15:10 ^J34 EPA 8260C14 1.00345.5ug/kg<4.8 5/29/16 RLDToluene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00344.8ug/kg<7.5 5/29/16 RLDtrans-1,2-Dichloroethene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00347.5ug/kg<4.8 5/29/16 RLDtrans-1,3-Dichloropropene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00344.8

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 78 of 212

Page 175: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 78 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728776

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1215

Analyte

Sample Description: GL-SD-07-052516

DODLOD

Client Sample #:

ug/kg<6.9 5/29/16 RLDTrichloroethene 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00346.9ug/kg<8.9 5/29/16 RLDTrichlorofluoromethane 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00348.9ug/kg<9.6 5/29/16 RLDVinyl chloride 05/25/2016 16:20 15:10 ^U34 EPA 8260C14 1.00349.6% Recovery101 5/29/16 RLD1,2 Dichloroethane-d4 05/25/2016 16:20 15:10 EPA 8260C1.0011780% Recovery102 5/29/16 RLDBromofluorobenzene 05/25/2016 16:20 15:10 EPA 8260C1.0012085% Recovery103 5/29/16 RLDd8-Toluene 05/25/2016 16:20 15:10 EPA 8260C1.0011585% Recovery98 5/29/16 RLDDibromofluoromethane 05/25/2016 16:20 15:10 EPA 8260C1.0011879

Qualifiers applying to all Analytes of Method EPA 8081B: V ug/kg<4.2 6/9/16 JJY4,4'-DDD 05/27/2016 14:00 18:17 ^U28 EPA 8081B14 10.00284.2ug/kg12.5 P 6/9/16 JJY4,4'-DDE 05/27/2016 14:00 18:17 ^J28 EPA 8081B14 10.00284.2ug/kg<7.0 6/9/16 JJY4,4'-DDT 05/27/2016 14:00 18:17 ^U28 EPA 8081B14 10.00287.0ug/kg<7.0 6/9/16 JJYAldrin 05/27/2016 14:00 18:17 ^U28 EPA 8081B14 10.00287.0ug/kg<8.4 6/9/16 JJYalpha-BHC 05/27/2016 14:00 18:17 ^U56 EPA 8081B28 10.00568.4ug/kg<4.2 Q 6/9/16 JJYalpha-Chlordane 05/27/2016 14:00 18:17 ^U28 EPA 8081B14 10.00284.2ug/kg<8.4 6/9/16 JJYbeta-BHC 05/27/2016 14:00 18:17 ^U56 EPA 8081B28 10.00568.4ug/kg<70 6/9/16 JJYChlordane (Technical) 05/27/2016 14:00 18:17 ^U560 EPA 8081B280 10.0056070ug/kg15.3 6/9/16 JJYdelta-BHC 05/27/2016 14:00 18:17 ^J28 EPA 8081B14 10.00284.2ug/kg8.35 6/9/16 JJYDieldrin 05/27/2016 14:00 18:17 ^J28 EPA 8081B14 10.00284.2ug/kg<9.7 6/9/16 JJYEndosulfan I 05/27/2016 14:00 18:17 ^U56 EPA 8081B28 10.00569.7ug/kg<4.2 6/9/16 JJYEndosulfan II 05/27/2016 14:00 18:17 ^U28 EPA 8081B14 10.00284.2ug/kg<13 6/9/16 JJYEndosulfan sulfate 05/27/2016 14:00 18:17 ^U56 EPA 8081B28 10.005613ug/kg<5.6 6/9/16 JJYEndrin 05/27/2016 14:00 18:17 ^U28 EPA 8081B14 10.00285.6ug/kg<15 6/9/16 JJYEndrin aldehyde 05/27/2016 14:00 18:17 ^U56 EPA 8081B28 10.005615ug/kg<11 6/9/16 JJYEndrin ketone 05/27/2016 14:00 18:17 ^U56 EPA 8081B28 10.005611ug/kg<4.2 6/9/16 JJYgamma-Chlordane 05/27/2016 14:00 18:17 ^U28 EPA 8081B14 10.00284.2ug/kg6.96 6/9/16 JJYHeptachlor 05/27/2016 14:00 18:17 ^J28 EPA 8081B14 10.00285.6ug/kg<7.0 6/9/16 JJYHeptachlor epoxide 05/27/2016 14:00 18:17 ^U28 EPA 8081B14 10.00287.0

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 79 of 212

Page 176: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 79 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728776

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1215

Analyte

Sample Description: GL-SD-07-052516

DODLOD

Client Sample #:

Qualifiers applying to all Analytes of Method EPA 8081B: V ug/kg<7.0 6/9/16 JJYLindane 05/27/2016 14:00 18:17 ^U28 EPA 8081B14 10.00287.0ug/kg<9.7 6/9/16 JJYMethoxychlor 05/27/2016 14:00 18:17 ^U56 EPA 8081B28 10.00569.7ug/kg<130 6/9/16 JJYToxaphene 05/27/2016 14:00 18:17 ^U560 EPA 8081B280 10.00560130% Recovery98 6/9/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 14:00 18:17 EPA 8081B10.0012570% Recovery85 6/9/16 JJYSURR:Decachlorobiphenyl 05/27/2016 14:00 18:17 EPA 8081B10.0013055ug/kg<20 6/2/16 RPN1,1'-Biphenyl 05/27/2016 14:00 20:23U170 EPA 8270D84 1.0017020ug/kg<31 6/2/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 14:00 20:23U170 EPA 8270D84 1.0017031ug/kg<180 6/2/16 RPN2,4,5-Trichlorophenol 05/27/2016 14:00 20:23 ^U840 EPA 8270D420 1.00840180ug/kg<180 6/2/16 RPN2,4,6-Trichlorophenol 05/27/2016 14:00 20:23 ^U840 EPA 8270D420 1.00840180ug/kg<170 6/2/16 RPN2,4-Dichlorophenol 05/27/2016 14:00 20:23 ^U840 EPA 8270D420 1.00840170ug/kg<140 6/2/16 RPN2,4-Dimethylphenol 05/27/2016 14:00 20:23 ^U840 EPA 8270D420 1.00840140ug/kg<380 6/2/16 RPN2,4-Dinitrophenol 05/27/2016 14:00 20:23 ^U1400 EPA 8270D840 1.001400380ug/kg<34 6/2/16 RPN2,4-Dinitrotoluene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017034ug/kg<34 6/2/16 RPN2,6-Dinitrotoluene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017034ug/kg<32 6/2/16 RPN2-Chloronaphthalene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017032ug/kg<480 6/2/16 RPN2-Chlorophenol 05/27/2016 14:00 20:23 ^U2800 EPA 8270D840 1.002800480ug/kg<35 6/2/16 RPN2-Methylnaphthalene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017035ug/kg<590 6/2/16 RPN2-Methylphenol 05/27/2016 14:00 20:23 ^U2800 EPA 8270D840 1.002800590ug/kg<32 6/2/16 RPN2-Nitroaniline 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017032ug/kg<390 6/2/16 RPN2-Nitrophenol 05/27/2016 14:00 20:23 ^U1400 EPA 8270D420 1.001400390ug/kg<910 6/2/16 RPN3 & 4-Methylphenol 05/27/2016 14:00 20:23 ^U5000 EPA 8270D1500 1.005000910ug/kg<210 6/2/16 RPN3,3'-Dichlorobenzidine 05/27/2016 14:00 20:23 ^U700 EPA 8270D210 1.00700210ug/kg<31 6/2/16 RPN3-Nitroaniline 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017031ug/kg<380 6/2/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 14:00 20:23 ^U1400 EPA 8270D420 1.001400380ug/kg<35 6/2/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017035ug/kg<530 6/2/16 RPN4-Chloro-3-methylphenol 05/27/2016 14:00 20:23 ^U2800 EPA 8270D840 1.002800530

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 80 of 212

Page 177: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 80 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728776

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1215

Analyte

Sample Description: GL-SD-07-052516

DODLOD

Client Sample #:

ug/kg<55 6/2/16 RPN4-Chloroaniline 05/27/2016 14:00 20:23 ^U280 EPA 8270D84 1.0028055ug/kg<36 6/2/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017036ug/kg<42 6/2/16 RPN4-Nitroaniline 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017042ug/kg<560 6/2/16 RPN4-Nitrophenol 05/27/2016 14:00 20:23 ^U2800 EPA 8270D840 1.002800560ug/kg<34 6/2/16 RPNAcenaphthene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017034ug/kg<34 6/2/16 RPNAcenaphthylene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017034ug/kg<100 6/2/16 RPNAcetophenone 05/27/2016 14:00 20:23 ^U560 EPA 8270D170 1.00560100ug/kg<34 6/2/16 RPNAnthracene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017034ug/kg<20 6/2/16 RPNAtrazine 05/27/2016 14:00 20:23U170 EPA 8270D84 1.0017020ug/kg<27 6/2/16 RPNBenzaldehyde 05/27/2016 14:00 20:23U170 EPA 8270D84 1.0017027ug/kg72.7 6/2/16 RPNBenzo(a)anthracene 05/27/2016 14:00 20:23 ^J170 EPA 8270D84 1.0017035ug/kg65.7 6/2/16 RPNBenzo(a)pyrene 05/27/2016 14:00 20:23 ^J170 EPA 8270D84 1.0017032ug/kg112 6/2/16 RPNBenzo(b)fluoranthene 05/27/2016 14:00 20:23 ^J170 EPA 8270D84 1.0017035ug/kg55.9 6/2/16 RPNBenzo(g,h,i)perylene 05/27/2016 14:00 20:23 ^J170 EPA 8270D84 1.0017031ug/kg<35 6/2/16 RPNBenzo(k)fluoranthene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017035ug/kg<32 6/2/16 RPNBis(2-chloroethoxy)methane 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017032ug/kg<35 6/2/16 RPNBis(2-chloroethyl)ether 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017035ug/kg<42 6/2/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017042ug/kg158 6/2/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 14:00 20:23 ^J560 EPA 8270D170 1.00560120ug/kg207 6/2/16 RPNButylbenzylphthalate 05/27/2016 14:00 20:23 ^J560 EPA 8270D170 1.00560100ug/kg<100 6/2/16 RPNCaprolactam 05/27/2016 14:00 20:23U560 EPA 8270D170 1.00560100ug/kg<39 6/2/16 RPNCarbazole 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017039ug/kg136 6/2/16 RPNChrysene 05/27/2016 14:00 20:23 ^J170 EPA 8270D84 1.0017035ug/kg115 6/2/16 RPNDi-n-butylphthalate 05/27/2016 14:00 20:23 ^J560 EPA 8270D170 1.00560110ug/kg<82 6/2/16 RPNDi-n-octylphthalate 05/27/2016 14:00 20:23 ^U280 EPA 8270D84 1.0028082ug/kg<31 6/2/16 RPNDibenzo(a,h)anthracene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017031ug/kg<34 6/2/16 RPNDibenzofuran 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017034ug/kg<89 6/2/16 RPNDiethylphthalate 05/27/2016 14:00 20:23 ^U560 EPA 8270D170 1.0056089

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 81 of 212

Page 178: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 81 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728776

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1215

Analyte

Sample Description: GL-SD-07-052516

DODLOD

Client Sample #:

ug/kg<88 6/2/16 RPNDimethylphthalate 05/27/2016 14:00 20:23 ^U560 EPA 8270D170 1.0056088ug/kg143 6/2/16 RPNFluoranthene 05/27/2016 14:00 20:23 ^J170 EPA 8270D84 1.0017036ug/kg<35 6/2/16 RPNFluorene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017035ug/kg<39 6/2/16 RPNHexachlorobenzene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017039ug/kg<87 6/2/16 RPNHexachlorobutadiene 05/27/2016 14:00 20:23 ^U560 EPA 8270D170 1.0056087ug/kg<73 Q 6/2/16 RPNHexachlorocyclopentadiene 05/27/2016 14:00 20:23 ^U280 EPA 8270D170 1.0028073ug/kg<46 6/2/16 RPNHexachloroethane 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017046ug/kg<32 6/2/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017032ug/kg<70 6/2/16 RPNIsophorone 05/27/2016 14:00 20:23 ^U280 EPA 8270D84 1.0028070ug/kg<98 6/2/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 14:00 20:23 ^U560 EPA 8270D170 1.0056098ug/kg<70 6/2/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 14:00 20:23 ^U340 EPA 8270D170 1.0034070ug/kg<29 6/2/16 RPNNaphthalene 05/27/2016 14:00 20:23 ^U170 EPA 8270D84 1.0017029ug/kg<82 6/2/16 RPNNitrobenzene 05/27/2016 14:00 20:23 ^U280 EPA 8270D84 1.0028082ug/kg<340 6/2/16 RPNPentachlorophenol 05/27/2016 14:00 20:23 ^U1400 EPA 8270D420 1.001400340ug/kg95.0 6/2/16 RPNPhenanthrene 05/27/2016 14:00 20:23 ^J170 EPA 8270D84 1.0017036ug/kg<220 6/2/16 RPNPhenol 05/27/2016 14:00 20:23 ^U840 EPA 8270D420 1.00840220ug/kg129 6/2/16 RPNPyrene 05/27/2016 14:00 20:23 ^J170 EPA 8270D84 1.0017036% Recovery63 6/2/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 14:00 20:23 ^EPA 8270D1.0012535% Recovery65 6/2/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 14:00 20:23 ^EPA 8270D1.0010545% Recovery58 6/2/16 RPNSurr: 2-Fluorophenol 05/27/2016 14:00 20:23 ^EPA 8270D1.0010535% Recovery69 6/2/16 RPNSurr: Nitrobenzene-d5 05/27/2016 14:00 20:23 ^EPA 8270D1.0010035% Recovery57 6/2/16 RPNSurr: Phenol-d5 05/27/2016 14:00 20:23 ^EPA 8270D1.0010040% Recovery72 6/2/16 RPNSurr: Terphenyl-d14 05/27/2016 14:00 20:23 ^EPA 8270D1.0012530ug/kg<6.9 6/2/16 JJYAroclor-1016 05/27/2016 14:00 22:53U42 EPA 8082A28 1.00426.9ug/kg<9.7 6/2/16 JJYAroclor-1221 05/27/2016 14:00 22:53U42 EPA 8082A28 1.00429.7ug/kg<12 6/2/16 JJYAroclor-1232 05/27/2016 14:00 22:53U42 EPA 8082A28 1.004212ug/kg<9.7 6/2/16 JJYAroclor-1242 05/27/2016 14:00 22:53U42 EPA 8082A28 1.00429.7ug/kg180 6/2/16 JJYAroclor-1248 05/27/2016 14:00 22:5342 EPA 8082A28 1.00429.7

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 82 of 212

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Page 82 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728776

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016 1215

Analyte

Sample Description: GL-SD-07-052516

DODLOD

Client Sample #:

ug/kg61.0 6/2/16 JJYAroclor-1254 05/27/2016 14:00 22:5342 EPA 8082A28 1.004212ug/kg22.2 6/2/16 JJYAroclor-1260 05/27/2016 14:00 22:53J42 EPA 8082A28 1.00428.3ug/kg<9.7 6/2/16 JJYAroclor-1262 05/27/2016 14:00 22:53U42 EPA 8082A28 1.00429.7ug/kg<6.9 6/2/16 JJYAroclor-1268 05/27/2016 14:00 22:53U42 EPA 8082A28 1.00426.9% Recovery105 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 14:00 22:53 EPA 8082A1.0013554% Recovery86 6/2/16 JJYSurr: DCBP 05/27/2016 14:00 22:53 EPA 8082A1.0014154

Sub Lab Results

ATTACHED 6/8/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 728777

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016

Analyte

Sample Description: TRIP BLANK

DODLOD

Client Sample #:

Organic Results

ug/L<0.21 5/31/16 AGK1,1,1-Trichloroethane 11:57 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.19 5/31/16 AGK1,1,2,2-Tetrachloroethane 11:57 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGK1,1,2-Trichloroethane 11:57 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.20 5/31/16 AGK1,1-Dichloroethane 11:57 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.24 5/31/16 AGK1,1-Dichloroethene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.30 5/31/16 AGK1,2,3-Trichlorobenzene 11:57 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.30 5/31/16 AGK1,2,4-Trichlorobenzene 11:57 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.40 5/31/16 AGK1,2-Dibromo-3-chloropropane 11:57 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.16 5/31/16 AGK1,2-Dibromoethane 11:57 ^U0.50 EPA 8260C0.25 1.000.500.16ug/L<0.23 5/31/16 AGK1,2-Dichlorobenzene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.30 5/31/16 AGK1,2-Dichloroethane 11:57 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGK1,2-Dichloropropane 11:57 ^U0.50 EPA 8260C0.25 1.000.500.22

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 83 of 212

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Page 83 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728777

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016

Analyte

Sample Description: TRIP BLANK

DODLOD

Client Sample #:

ug/L<0.26 5/31/16 AGK1,3-Dichlorobenzene 11:57 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.21 5/31/16 AGK1,4-Dichloro-2-butene 11:57U0.50 EPA 8260C0.25 1.000.500.21ug/L<5.0 Z,Q 5/31/16 AGK1,4-Dioxane 11:57U25 EPA 8260C13 1.00255.0ug/L<0.50 5/31/16 AGK112Trichloro122trifluoroethane 11:57U1.0 EPA 8260C0.50 1.001.00.50ug/L<2.4 5/31/16 AGK2-Butanone 11:57 ^U5.0 EPA 8260C2.5 1.005.02.4ug/L<4.0 5/31/16 AGK2-Hexanone 11:57 ^U10 EPA 8260C5.0 1.00104.0ug/L<3.0 5/31/16 AGK4-Methyl-2-pentanone 11:57 ^U10 EPA 8260C5.0 1.00103.0ug/L<5.0 5/31/16 AGKAcetone 11:57 ^U10 EPA 8260C5.0 1.00105.0ug/L<0.19 5/31/16 AGKBenzene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.19 5/31/16 AGKBromochloromethane 11:57 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.20 5/31/16 AGKBromodichloromethane 11:57 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.22 5/31/16 AGKBromoform 11:57 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.50 5/31/16 AGKBromomethane 11:57 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.50 5/31/16 AGKCarbon disulfide 11:57 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.23 5/31/16 AGKCarbon tetrachloride 11:57 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.24 5/31/16 AGKChlorobenzene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.40 5/31/16 AGKChloroethane 11:57 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.15 5/31/16 AGKChloroform 11:57 ^U0.50 EPA 8260C0.25 1.000.500.15ug/L<0.40 5/31/16 AGKChloromethane 11:57 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.25 5/31/16 AGKcis-1,2-Dichloroethene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKcis-1,3-Dichloropropene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.28 5/31/16 AGKCyclohexane 11:57U1.0 EPA 8260C0.50 1.001.00.28ug/L<0.19 5/31/16 AGKDibromochloromethane 11:57 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGKDichlorodifluoromethane 11:57 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.22 5/31/16 AGKEthylbenzene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.18 5/31/16 AGKIsopropylbenzene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.18ug/L<0.50 5/31/16 AGKm & p-Xylene 11:57 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.30 5/31/16 AGKMethyl acetate 11:57U1.0 EPA 8260C0.50 1.001.00.30

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 84 of 212

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Page 84 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728777

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/25/2016

Analyte

Sample Description: TRIP BLANK

DODLOD

Client Sample #:

ug/L<0.29 5/31/16 AGKMethyl tert-butyl ether 11:57 ^U1.0 EPA 8260C0.50 1.001.00.29ug/L<0.23 5/31/16 AGKMethylcyclohexane 11:57U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.40 5/31/16 AGKMethylene chloride 11:57 ^U2.0 EPA 8260C0.50 1.002.00.40ug/L<0.24 5/31/16 AGKo-Xylene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.20 5/31/16 AGKStyrene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.30 5/31/16 AGKTetrachloroethene 11:57 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGKToluene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.25 5/31/16 AGKtrans-1,2-Dichloroethene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKtrans-1,3-Dichloropropene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.21 5/31/16 AGKTrichloroethene 11:57 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.20 5/31/16 AGKTrichlorofluoromethane 11:57 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.18 5/31/16 AGKVinyl chloride 11:57 ^U0.50 EPA 8260C0.25 1.000.500.18% Recovery98 5/31/16 AGK1,2 Dichloroethane-d4 11:57 EPA 8260C1.0012070% Recovery104 5/31/16 AGKBromofluorobenzene 11:57 EPA 8260C1.0012075% Recovery100 5/31/16 AGKd8-Toluene 11:57 EPA 8260C1.0012085% Recovery95 5/31/16 AGKDibromofluoromethane 11:57 EPA 8260C1.0011585

CT LAB#: 728778

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/24/2016 1145

Analyte

Sample Description: GL-S-B1-01-052516

DODLOD

Client Sample #:

Inorganic Results

%100 5/31/16 ABSSolids, Percent 0.1 EPA 8000C0.1 1.000.10.1

Sub Lab Results

ATTACHED 6/13/16 SUBAsbestos 00:001.00

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 85 of 212

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Page 85 of 86Project Name: GRADEL LF

Contract #: 2920 Folder #: 119285

Project #:

TETRA TECH

Project Phase:

CT LAB#: 728780

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/24/2016 1150

Analyte

Sample Description: GL-S-B1-02-052516

DODLOD

Client Sample #:

Inorganic Results

%58.5 5/31/16 ABSSolids, Percent 11:100.1 EPA 8000C0.1 1.000.10.1

Metals Results

mg/kg18.6 6/1/16 NAHAluminum 05/31/2016 09:00 15:41 ^0.42 EPA 6010C0.21 1.000.420.070mg/kg<0.23 6/1/16 NAHAntimony 05/31/2016 09:00 15:41 ^U1.4 EPA 6010C0.70 1.001.40.23mg/kg<0.23 6/1/16 NAHArsenic 05/31/2016 09:00 15:41 ^U1.4 EPA 6010C0.70 1.001.40.23mg/kg7.0 6/1/16 NAHBarium 05/31/2016 09:00 15:41 ^0.088 EPA 6010C0.044 1.000.0880.016mg/kg0.0070 6/1/16 NAHBeryllium 05/31/2016 09:00 15:41 ^J0.070 EPA 6010C0.021 1.000.0700.0070mg/kg30.2 6/1/16 NAHCadmium 05/31/2016 09:00 15:41 ^0.070 EPA 6010C0.035 1.000.0700.011mg/kg1330 6/1/16 NAHCalcium 05/31/2016 09:00 15:41 ^2.5 EPA 6010C1.2 1.002.50.42mg/kg0.79 6/1/16 NAHChromium 05/31/2016 09:00 15:41 ^0.25 EPA 6010C0.12 1.000.250.041mg/kg0.079 6/1/16 NAHCobalt 05/31/2016 09:00 15:41 ^J0.42 EPA 6010C0.21 1.000.420.070mg/kg1.1 6/1/16 NAHCopper 05/31/2016 09:00 15:41 ^0.70 EPA 6010C0.35 1.000.700.12mg/kg348 6/1/16 NAHIron 05/31/2016 09:00 15:41 ^3.2 EPA 6010C1.6 1.003.20.53mg/kg0.28 6/1/16 NAHLead 05/31/2016 09:00 15:41 ^J0.44 EPA 6010C0.22 1.000.440.070mg/kg105 6/1/16 NAHMagnesium 05/31/2016 09:00 15:41 ^1.4 EPA 6010C0.70 1.001.40.25mg/kg29.5 6/1/16 NAHManganese 05/31/2016 09:00 15:41 ^0.26 EPA 6010C0.13 1.000.260.044mg/kg0.62 6/1/16 NAHNickel 05/31/2016 09:00 15:41 ^0.21 EPA 6010C0.11 1.000.210.037mg/kg1.4 6/1/16 NAHSelenium 05/31/2016 09:00 15:41 ^0.70 EPA 6010C0.35 1.000.700.11mg/kg<0.030 6/1/16 NAHSilver 05/31/2016 09:00 15:41 ^U0.18 EPA 6010C0.088 1.000.180.030mg/kg<0.14 6/1/16 NAHThallium 05/31/2016 09:00 15:41 ^U0.85 EPA 6010C0.42 1.000.850.14mg/kg0.65 6/1/16 NAHVanadium 05/31/2016 09:00 15:41 ^0.14 EPA 6010C0.070 1.000.140.021mg/kg1570 6/1/16 NAHZinc 05/31/2016 09:00 15:41 ^0.53 EPA 6010C0.26 1.000.530.088mg/kg21.2 6/2/16 MDSPotassium 05/31/2016 09:00 14:44 ^J120 EPA 6010C58 1.0012019mg/kg9.9 6/2/16 MDSSodium 05/31/2016 09:00 14:44 ^J42 EPA 6010C21 1.00427.0mg/kg0.0047 5/31/16 LJFMercury 05/27/2016 12:00 14:34 ^J0.014 EPA 7471B0.0073 1.000.0140.0037

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119285 - Page 86 of 212

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Notes: ^ Indicates the laboratory is NELAP accredited for this analyte by the indicated matrix and method. DL (detection limit), LOD (limit of detection), loq (limit of quantitation) as defined by most recent DOD QSM version.

Submitted by: Brett M. SzymanskiProject Manager 608-356-2760

DescriptionCodeQC Qualifiers

B Analyte detected in the associated Method Blank.C Toxicity present in BOD sample.D Diluted Out.E Safe, No Total Coliform detected.F Unsafe, Total Coliform detected, no E. Coli detected.G Unsafe, Total Coliform detected and E. Coli detected.H Holding time exceeded.I BOD incubator temperature was outside acceptance limits during test period.J Estimated value.L Significant peaks were detected outside the chromatographic window.M Matrix spike and/or Matrix Spike Duplicate recovery outside acceptance limits.N Insufficient BOD oxygen depletion.O Complete BOD oxygen depletion.P Concentration of analyte differs more than 40% between primary and confirmation analysis.Q Laboratory Control Sample outside acceptance limits.R See Narrative at end of report.S Surrogate standard recovery outside acceptance limits due to apparent matrix effects.T Sample received with improper preservation or temperature.U Analyte concentration was below detection limit.V Raised Quantitation or Reporting Limit due to limited sample amount or dilution for matrix background interference.W Sample amount received was below program minimum.X Analyte exceeded calibration range.Y Replicate/Duplicate precision outside acceptance limits.Z Specified calibration criteria was not met.

Current CT Laboratories Certifications

Kansas NELAP ID# E-10368Kentucky ID# 0023ISO/IEC 17025-2005 A2LA Cert # 3806.01North Carolina ID# 674Wisconsin (WDNR) Chemistry ID# 157066030Wisconsin (DATCP) Bacteriology ID# 105-289DoD-ELAP A2LA 3806.01GA EPD Stipulation ID E871111, Expires AnnuallyLouisiana ID # 115843Virginia ID# 7608Illinois NELAP ID # 002413Wisconsin (WOSB) ID# WI-5499-WBEMaryland ID# 344

All samples were received intact and properly preserved unless otherwise noted. The results reported relate only to the samples tested. This report shall not be reproduced, except in full, without written approval of this laboratory. The Chain of Custody is attached. This report has been specifically prepared to satisfy project or program requirements. These results are in compliance with NELAC requirements for the parameters where accreditation is required or available, unless noted in the case narrative.

119285 - Page 87 of 212

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1230 Lange Court • Baraboo , W I 53913 • 608 -356-2760

www.ctlabor atories .com

QC SUMMARY REPORT

TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Duplicate

05/31/2016Analytical Run #: Analysis Date:11:10Analysis Time:730271ABS

CTLab #:Analyst:

Prep Batch #:

728780Parent Sample #:Prep Date/Time:

SOILMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126552Method: SW8000C

Solids, Percent % 3 856.8 58.5

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Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Soil

06/01/2016Analytical Run #: Analysis Date:11:24Analysis Time:730480JJF

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126565Method: LYDKHN

Total Organic Carbon mg/kg 105 113419000 84 ---400000

Date Printed: 06/16/2016

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Method Blank Soil

06/01/2016Analytical Run #: Analysis Date:11:30Analysis Time:730481JJF

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126565Method: LYDKHN

Total Organic Carbon mg/kg U 900301 0

Date Printed: 06/16/2016

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Duplicate

05/31/2016Analytical Run #: Analysis Date:09:10Analysis Time:728973

57480

LJFCTLab #:

Analyst:

Prep Batch #:

728768Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126519Method: SW7470A05/27/201607:30

Total Mercury ug/L U 0.12 0 200.0300 <0.0300

Date Printed: 06/16/2016

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Lab Control Spike Water

05/31/2016Analytical Run #: Analysis Date:09:00Analysis Time:728972

57480

LJFCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126519Method: SW7470A05/27/201607:30

Total Mercury ug/L 92 1202.77 80 ---3.00

Date Printed: 06/16/2016

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Method Blank Water

05/31/2016Analytical Run #: Analysis Date:09:02Analysis Time:728971

57480

LJFCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126519Method: SW7470A05/27/201607:30

Total Mercury ug/L U 0.060.03 0

Date Printed: 06/16/2016

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Matrix Spike Duplicate Water

05/31/2016Analytical Run #: Analysis Date:09:14Analysis Time:728975

57480

LJFCTLab #:

Analyst:

Prep Batch #:

728974Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126519Method: SW7470A05/27/201607:30

Total Mercury ug/L 75 120 12 201.5 BDL 80 ---2.0

Date Printed: 06/16/2016

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Matrix Spike Water

05/31/2016Analytical Run #: Analysis Date:09:12Analysis Time:728974

57480

LJFCTLab #:

Analyst:

Prep Batch #:

728768Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126519Method: SW7470A05/27/201607:30

Total Mercury ug/L 65 1201.3 BDL 80 ---2.0

Date Printed: 06/16/2016

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Project Number: SDG #: 0 Folder #: 119285

Duplicate

05/31/2016Analytical Run #: Analysis Date:14:15Analysis Time:728978

57481

LJFCTLab #:

Analyst:

Prep Batch #:

728769Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126524Method: SW7471B05/27/201612:00

Mercury mg/kg 0.20 101 200.036 0.11

Date Printed: 06/16/2016

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Lab Control Spike Soil

05/31/2016Analytical Run #: Analysis Date:14:08Analysis Time:728977

57481

LJFCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126524Method: SW7471B05/27/201612:00

Mercury mg/kg 116 1200.096 80 ---0.083

Date Printed: 06/16/2016

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Method Blank Soil

05/31/2016Analytical Run #: Analysis Date:14:10Analysis Time:728976

57481

LJFCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126524Method: SW7471B05/27/201612:00

Mercury mg/kg U 004150.0021 0

Date Printed: 06/16/2016

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Matrix Spike Duplicate Soil

05/31/2016Analytical Run #: Analysis Date:14:23Analysis Time:728980

57481

LJFCTLab #:

Analyst:

Prep Batch #:

728979Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126524Method: SW7471B05/27/201612:00

Mercury mg/kg 50 120 1 200.19 0.11 80 ---0.16

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Matrix Spike Soil

05/31/2016Analytical Run #: Analysis Date:14:21Analysis Time:728979

57481

LJFCTLab #:

Analyst:

Prep Batch #:

728769Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126524Method: SW7471B05/27/201612:00

Mercury mg/kg 53 1200.19 0.11 80 ---0.15

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Project Number: SDG #: 0 Folder #: 119285

Duplicate

06/01/2016Analytical Run #: Analysis Date:14:26Analysis Time:729605

57501

NAHCTLab #:

Analyst:

Prep Batch #:

728769Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126576Method: SW601005/31/201609:00

Aluminum mg/kg 9.6 4 209180 9530Antimony mg/kg 32 58 200.55 1.0Arsenic mg/kg 32 12 205.7 6.4Barium mg/kg 2.0 21 2095.0 117Beryllium mg/kg 1.60 8 200.25 0.27Cadmium mg/kg 1.60 59 200.24 0.44Calcium mg/kg 56 16 2036200 42700Chromium mg/kg 5.6 7 2017.5 18.8Cobalt mg/kg 9.6 9 208.5 9.3Copper mg/kg 16.0 9 2034.6 31.7Iron mg/kg 72 2 2019100 19500Lead mg/kg 10.0 17 2032.1 37.9Magnesium mg/kg 32 3 2014900 15400Manganese mg/kg 6.0 3 20413 427Nickel mg/kg 4.8 2 2026.1 26.6Selenium mg/kg 16 42 201.1 0.72Silver mg/kg U 4.0 0 200.0308 <0.0308Thallium mg/kg U 19 0 200.145 <0.145Vanadium mg/kg 3.2 3 2021.6 22.2Zinc mg/kg 12.0 13 20167 190

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Lab Control Spike Soil

06/01/2016Analytical Run #: Analysis Date:13:41Analysis Time:729604

57501

NAHCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126576Method: SW601005/31/201609:00

Aluminum mg/kg 97 12097.3 80 ---100Antimony mg/kg 97 12024.3 80 ---25.0Arsenic mg/kg 94 12094.5 80 ---100Barium mg/kg 96 12096.5 80 ---100Beryllium mg/kg 96 1202.4 80 ---2.5Cadmium mg/kg 88 1202.2 80 ---2.5Calcium mg/kg 103 1205130 80 ---5000Chromium mg/kg 94 1209.4 80 ---10.0Cobalt mg/kg 94 12023.4 80 ---25.0Copper mg/kg 94 12011.8 80 ---12.5Iron mg/kg 108 12054.0 80 ---50.0Lead mg/kg 92 12022.9 80 ---25.0Magnesium mg/kg 101 1202530 80 ---2500Manganese mg/kg 87 12021.8 80 ---25.0Nickel mg/kg 90 12022.6 80 ---25.0Selenium mg/kg 91 12091.0 80 ---100Silver mg/kg 88 1202.2 75 ---2.5Thallium mg/kg 87 12087.0 80 ---100Vanadium mg/kg 98 12024.5 80 ---25.0Zinc mg/kg 94 12023.6 80 ---25.0

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Method Blank Soil

06/01/2016Analytical Run #: Analysis Date:14:06Analysis Time:729603

57501

NAHCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126576Method: SW601005/31/201609:00

Aluminum mg/kg 0.120.53 0Antimony mg/kg U 0.400.13 0Arsenic mg/kg U 0.400.13 0Barium mg/kg 0.0250.011 0Beryllium mg/kg U 0.0200.004 0Cadmium mg/kg U 0.0200.006 0Calcium mg/kg 0.703.7 0Chromium mg/kg U 0.1250.023 0Cobalt mg/kg U 0.120.04 0Copper mg/kg U 0.200.07 0Iron mg/kg 0.97.6 0Lead mg/kg U 0.1250.04 0Magnesium mg/kg 0.401.2 0Manganese mg/kg 0.0750.076 0Nickel mg/kg U 0.0600.021 0Selenium mg/kg U 0.200.06 0Silver mg/kg U 0.0500.017 0Thallium mg/kg U 0.240.08 0Vanadium mg/kg U 0.0400.012 0Zinc mg/kg U 0.150.05 0

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Matrix Spike Duplicate Soil

06/01/2016Analytical Run #: Analysis Date:14:39Analysis Time:729607

57501

NAHCTLab #:

Analyst:

Prep Batch #:

729606Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126576Method: SW601005/31/201609:00

Aluminum mg/kg 435 120 0 2010300 9530 80 ---177Antimony mg/kg 23 120 1 2011.1 1.0 80 ---44.3Arsenic mg/kg 89 120 1 20164 6.4 80 ---177Barium mg/kg 88 120 0 20273 117 80 ---177Beryllium mg/kg 98 120 0 204.6 0.27 80 ---4.4Cadmium mg/kg 85 120 1 204.2 0.44 80 ---4.4Calcium mg/kg 63 120 1 2048300 42700 80 ---8870Chromium mg/kg 86 120 0 2034.1 18.8 80 ---17.7Cobalt mg/kg 85 120 1 2047.0 9.3 80 ---44.3Copper mg/kg 105 120 4 2055.0 31.7 80 ---22.2Iron mg/kg 0 120 0 2019500 19500 80 ---88.7Lead mg/kg 116 120 2 2089.5 37.9 80 ---44.3Magnesium mg/kg 106 120 1 2020100 15400 80 ---4430Manganese mg/kg 86 120 4 20465 427 80 ---44.3Nickel mg/kg 89 120 1 2066.0 26.6 80 ---44.3Selenium mg/kg 97 120 2 20173 0.72 80 ---177Silver mg/kg 91 125 1 204.0 BDL 75 ---4.4Thallium mg/kg 73 120 1 20129 BDL 80 ---177Vanadium mg/kg 95 120 0 2064.3 22.2 80 ---44.3Zinc mg/kg 52 120 3 20213 190 80 ---44.3

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Project Number: SDG #: 0 Folder #: 119285

Matrix Spike Soil

06/01/2016Analytical Run #: Analysis Date:14:32Analysis Time:729606

57501

NAHCTLab #:

Analyst:

Prep Batch #:

728769Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126576Method: SW601005/31/201609:00

Aluminum mg/kg 489 12010400 9530 80 ---178Antimony mg/kg 23 12011.3 1.0 80 ---44.5Arsenic mg/kg 90 120166 6.4 80 ---178Barium mg/kg 88 120274 117 80 ---178Beryllium mg/kg 96 1204.6 0.27 80 ---4.5Cadmium mg/kg 81 1204.1 0.44 80 ---4.5Calcium mg/kg 61 12048100 42700 80 ---8910Chromium mg/kg 87 12034.2 18.8 80 ---17.8Cobalt mg/kg 86 12047.7 9.3 80 ---44.5Copper mg/kg 96 12053.0 31.7 80 ---22.3Iron mg/kg 224 12019700 19500 80 ---89.1Lead mg/kg 113 12088.2 37.9 80 ---44.5Magnesium mg/kg 101 12019900 15400 80 ---4450Manganese mg/kg 52 120450 427 80 ---44.5Nickel mg/kg 88 12065.9 26.6 80 ---44.5Selenium mg/kg 96 120171 0.72 80 ---178Silver mg/kg 89 1254.0 BDL 75 ---4.5Thallium mg/kg 74 120131 BDL 80 ---178Vanadium mg/kg 95 12064.6 22.2 80 ---44.5Zinc mg/kg 38 120207 190 80 ---44.5

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Project Number: SDG #: 0 Folder #: 119285

Duplicate

06/02/2016Analytical Run #: Analysis Date:14:14Analysis Time:729605

57501

MDSCTLab #:

Analyst:

Prep Batch #:

728769Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126577Method: SW601005/31/201609:00

Potassium mg/kg 2.64 3 202060 2120

Date Printed: 06/16/2016

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Project Number: SDG #: 0 Folder #: 119285

Duplicate

06/02/2016Analytical Run #: Analysis Date:14:14Analysis Time:729605

57501

MDSCTLab #:

Analyst:

Prep Batch #:

728769Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126577Method: SW601005/31/201609:00

Sodium mg/kg 0.96 5 20493 520

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Lab Control Spike Soil

06/02/2016Analytical Run #: Analysis Date:14:02Analysis Time:729604

57501

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126577Method: SW601005/31/201609:00

Potassium mg/kg 105 1202630 80 ---2500

Date Printed: 06/16/2016

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Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Soil

06/02/2016Analytical Run #: Analysis Date:14:02Analysis Time:729604

57501

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126577Method: SW601005/31/201609:00

Sodium mg/kg 104 1202600 80 ---2500

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Method Blank Soil

06/02/2016Analytical Run #: Analysis Date:14:05Analysis Time:729603

57501

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126577Method: SW601005/31/201609:00

Potassium mg/kg U 3311 0

Date Printed: 06/16/2016

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Project Number: SDG #: 0 Folder #: 119285

Method Blank Soil

06/02/2016Analytical Run #: Analysis Date:14:05Analysis Time:729603

57501

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126577Method: SW601005/31/201609:00

Sodium mg/kg U 124 0

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119285 - Page 111 of 212

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Matrix Spike Duplicate Soil

06/02/2016Analytical Run #: Analysis Date:14:20Analysis Time:729607

57501

MDSCTLab #:

Analyst:

Prep Batch #:

729606Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126577Method: SW601005/31/201609:00

Potassium mg/kg 103 120 0 206690 2120 80 ---4430

Date Printed: 06/16/2016

CTLaboratories LLC 1230 Lange Court • Baraboo, WI 53913 • 608-356-2760

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119285 - Page 112 of 212

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Matrix Spike Duplicate Soil

06/02/2016Analytical Run #: Analysis Date:14:20Analysis Time:729607

57501

MDSCTLab #:

Analyst:

Prep Batch #:

729606Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126577Method: SW601005/31/201609:00

Sodium mg/kg 106 120 1 205230 520 80 ---4430

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Matrix Spike Soil

06/02/2016Analytical Run #: Analysis Date:14:17Analysis Time:729606

57501

MDSCTLab #:

Analyst:

Prep Batch #:

728769Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126577Method: SW601005/31/201609:00

Potassium mg/kg 104 1206730 2120 80 ---4450

Date Printed: 06/16/2016

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119285 - Page 114 of 212

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Matrix Spike Soil

06/02/2016Analytical Run #: Analysis Date:14:17Analysis Time:729606

57501

MDSCTLab #:

Analyst:

Prep Batch #:

728769Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126577Method: SW601005/31/201609:00

Sodium mg/kg 107 1205300 520 80 ---4450

Date Printed: 06/16/2016

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119285 - Page 115 of 212

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Duplicate

06/01/2016Analytical Run #: Analysis Date:23:26Analysis Time:729726

57508

NAHCTLab #:

Analyst:

Prep Batch #:

728765Parent Sample #:Prep Date/Time:

GROUND WATER

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126598Method: SW601005/31/201615:00

Total Aluminum ug/L 36 7 2093.1 99.8Total Antimony ug/L U 12.0 0 202.00 <2.00Total Arsenic ug/L U 24 200 204.00 4.1Total Barium ug/L 1.80 7 20291 312Total Beryllium ug/L U 0.60 0 200.100 <0.100Total Cadmium ug/L 2.0 8 200.60 0.65Total Calcium ug/L 100 8 20273000 297000Total Chromium ug/L 4.0 5 203.8 4.0Total Cobalt ug/L 4.0 5 201.9 2.0Total Copper ug/L U 7.0 0 201.20 <1.20Total Iron ug/L 100 8 204280 4640Total Lead ug/L 4.0 12 208.8 9.9Total Magnesium ug/L 40 8 20178000 193000Total Manganese ug/L 4.0 7 20232 249Total Nickel ug/L 6.0 2 205.2 5.3Total Selenium ug/L U 13.0 200 202.20 4.9Total Silver ug/L U 4.0 0 200.700 <0.700Total Thallium ug/L U 15.0 0 202.50 <2.50Total Vanadium ug/L U 5.0 0 200.800 <0.800Total Zinc ug/L 10.0 7 2066.2 71.2

Date Printed: 06/16/2016

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119285 - Page 116 of 212

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Water

06/01/2016Analytical Run #: Analysis Date:23:00Analysis Time:729710

57508

NAHCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126598Method: SW601005/31/201615:00

Total Aluminum ug/L 101 120808.0 80 ---800.0Total Antimony ug/L 108 120215.0 80 ---200.0Total Arsenic ug/L 111 120888.0 80 ---800.0Total Barium ug/L 109 120870.0 80 ---800.0Total Beryllium ug/L 108 12021.60 80 ---20.00Total Cadmium ug/L 102 12020.40 80 ---20.00Total Calcium ug/L 114 120227000 80 ---200000Total Chromium ug/L 108 12086.10 80 ---80.00Total Cobalt ug/L 106 120212.0 80 ---200.0Total Copper ug/L 103 120103.0 80 ---100.0Total Iron ug/L 103 120411.0 80 ---400.0Total Lead ug/L 104 120209.0 80 ---200.0Total Magnesium ug/L 110 120110000 80 ---100000Total Manganese ug/L 108 120216.0 80 ---200.0Total Nickel ug/L 106 120212.0 80 ---200.0Total Selenium ug/L 117 120935.0 80 ---800.0Total Silver ug/L 80 12016.10 80 ---20.00Total Thallium ug/L 101 120807.0 80 ---800.0Total Vanadium ug/L 108 120215.0 80 ---200.0Total Zinc ug/L 112 120224.0 80 ---200.0

Date Printed: 06/16/2016

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119285 - Page 117 of 212

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Method Blank Water

06/01/2016Analytical Run #: Analysis Date:23:06Analysis Time:729709

57508

NAHCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126598Method: SW601005/31/201615:00

Total Aluminum ug/L U 186 0Total Antimony ug/L U 6.02.0 0Total Arsenic ug/L U 124 0Total Barium ug/L U 0.900.29 0Total Beryllium ug/L U 0.300.10 0Total Cadmium ug/L U 1.00.3 0Total Calcium ug/L 5092.70 0Total Chromium ug/L U 2.00.6 0Total Cobalt ug/L U 2.00.7 0Total Copper ug/L U 3.51.2 0Total Iron ug/L U 5016 0Total Lead ug/L U 2.01.4 0Total Magnesium ug/L U 206 0Total Manganese ug/L U 2.00.7 0Total Nickel ug/L U 3.01.0 0Total Selenium ug/L U 6.52.2 0Total Silver ug/L U 2.00.7 0Total Thallium ug/L U 7.52.5 0Total Vanadium ug/L U 2.50.8 0Total Zinc ug/L U 5.01.6 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Matrix Spike Duplicate Water

06/01/2016Analytical Run #: Analysis Date:23:40Analysis Time:729728

57508

NAHCTLab #:

Analyst:

Prep Batch #:

729727Parent Sample #:Prep Date/Time:

GROUND WATER

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126598Method: SW601005/31/201615:00

Total Aluminum ug/L 134 120 3 201170 99.8 80 ---800Total Antimony ug/L 111 120 2 20222 BDL 80 ---200Total Arsenic ug/L 109 120 1 20877 4.1 80 ---800Total Barium ug/L 124 120 2 201300 312 80 ---800Total Beryllium ug/L 109 120 1 2021.8 BDL 80 ---20.0Total Cadmium ug/L 102 120 1 2021.0 0.65 80 ---20.0Total Calcium ug/L 110 120 2 20517000 297000 80 ---200000Total Chromium ug/L 109 120 1 2091.2 4.0 80 ---80.0Total Cobalt ug/L 106 120 2 20213 2.0 80 ---200Total Copper ug/L 104 120 2 20104 BDL 80 ---100Total Iron ug/L 38 120 3 204790 4640 80 ---400Total Lead ug/L 106 120 4 20222 9.9 80 ---200Total Magnesium ug/L 105 120 2 20298000 193000 80 ---100000Total Manganese ug/L 102 120 2 20454 249 80 ---200Total Nickel ug/L 105 120 1 20215 5.3 80 ---200Total Selenium ug/L 97 120 1 20784 4.9 80 ---800Total Silver ug/L 88 120 7 2017.6 BDL 80 ---20.0Total Thallium ug/L 97 120 1 20778 BDL 80 ---800Total Vanadium ug/L 110 120 1 20219 BDL 80 ---200Total Zinc ug/L 112 120 1 20295 71.2 80 ---200

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Matrix Spike Water

06/01/2016Analytical Run #: Analysis Date:23:33Analysis Time:729727

57508

NAHCTLab #:

Analyst:

Prep Batch #:

728765Parent Sample #:Prep Date/Time:

GROUND WATER

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126598Method: SW601005/31/201615:00

Total Aluminum ug/L 129 1201130 99.8 80 ---800Total Antimony ug/L 109 120218 BDL 80 ---200Total Arsenic ug/L 108 120866 4.1 80 ---800Total Barium ug/L 120 1201270 312 80 ---800Total Beryllium ug/L 108 12021.6 BDL 80 ---20.0Total Cadmium ug/L 101 12020.8 0.65 80 ---20.0Total Calcium ug/L 106 120509000 297000 80 ---200000Total Chromium ug/L 108 12090.5 4.0 80 ---80.0Total Cobalt ug/L 104 120209 2.0 80 ---200Total Copper ug/L 102 120102 BDL 80 ---100Total Iron ug/L 8 1204670 4640 80 ---400Total Lead ug/L 102 120213 9.9 80 ---200Total Magnesium ug/L 100 120293000 193000 80 ---100000Total Manganese ug/L 99 120447 249 80 ---200Total Nickel ug/L 104 120213 5.3 80 ---200Total Selenium ug/L 98 120791 4.9 80 ---800Total Silver ug/L 82 12016.4 BDL 80 ---20.0Total Thallium ug/L 96 120769 BDL 80 ---800Total Vanadium ug/L 108 120217 BDL 80 ---200Total Zinc ug/L 110 120292 71.2 80 ---200

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Duplicate

06/02/2016Analytical Run #: Analysis Date:17:18Analysis Time:729726

57508

MDSCTLab #:

Analyst:

Prep Batch #:

728765Parent Sample #:Prep Date/Time:

GROUND WATER

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126599Method: SW601005/31/201615:00

Total Potassium ug/L 0.500 6 2044500 47300

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Duplicate

06/02/2016Analytical Run #: Analysis Date:17:18Analysis Time:729726

57508

MDSCTLab #:

Analyst:

Prep Batch #:

728765Parent Sample #:Prep Date/Time:

GROUND WATER

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126599Method: SW601005/31/201615:00

Total Sodium ug/L 0.600 6 2058600 62400

Date Printed: 06/16/2016

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119285 - Page 122 of 212

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Water

06/02/2016Analytical Run #: Analysis Date:16:31Analysis Time:729710

57508

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126599Method: SW601005/31/201615:00

Total Potassium ug/L 116 12046200 80 ---40000

Date Printed: 06/16/2016

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119285 - Page 123 of 212

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Water

06/02/2016Analytical Run #: Analysis Date:16:31Analysis Time:729710

57508

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126599Method: SW601005/31/201615:00

Total Sodium ug/L 107 120107000 80 ---100000

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Method Blank Water

06/02/2016Analytical Run #: Analysis Date:16:34Analysis Time:729709

57508

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126599Method: SW601005/31/201615:00

Total Potassium ug/L U 25090 0

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Method Blank Water

06/02/2016Analytical Run #: Analysis Date:16:34Analysis Time:729709

57508

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126599Method: SW601005/31/201615:00

Total Sodium ug/L U 300100 0

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Matrix Spike Duplicate Water

06/02/2016Analytical Run #: Analysis Date:17:23Analysis Time:729728

57508

MDSCTLab #:

Analyst:

Prep Batch #:

729727Parent Sample #:Prep Date/Time:

GROUND WATER

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126599Method: SW601005/31/201615:00

Total Potassium ug/L 112 120 2 2092300 47300 80 ---40000

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Matrix Spike Duplicate Water

06/02/2016Analytical Run #: Analysis Date:17:23Analysis Time:729728

57508

MDSCTLab #:

Analyst:

Prep Batch #:

729727Parent Sample #:Prep Date/Time:

GROUND WATER

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126599Method: SW601005/31/201615:00

Total Sodium ug/L 108 120 3 20170000 62400 80 ---100000

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Matrix Spike Water

06/02/2016Analytical Run #: Analysis Date:17:21Analysis Time:729727

57508

MDSCTLab #:

Analyst:

Prep Batch #:

728765Parent Sample #:Prep Date/Time:

GROUND WATER

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126599Method: SW601005/31/201615:00

Total Potassium ug/L 109 12090800 47300 80 ---40000

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Matrix Spike Water

06/02/2016Analytical Run #: Analysis Date:17:21Analysis Time:729727

57508

MDSCTLab #:

Analyst:

Prep Batch #:

728765Parent Sample #:Prep Date/Time:

GROUND WATER

NAH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126599Method: SW601005/31/201615:00

Total Sodium ug/L 103 120165000 62400 80 ---100000

Date Printed: 06/16/2016

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Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Soil

05/29/2016Analytical Run #: Analysis Date:09:27Analysis Time:728358

57445

RLDCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

1,1,1-Trichloroethane ug/kg 103 135513 70 ---5001,1,2,2-Tetrachloroethane ug/kg 95 130474 55 ---5001,1,2-Trichloroethane ug/kg 102 125510 60 ---5001,1-Dichloroethane ug/kg 100 125501 75 ---5001,1-Dichloroethene ug/kg 100 135500 65 ---5001,2,3-Trichlorobenzene ug/kg 102 135508 60 ---5001,2,4-Trichlorobenzene ug/kg 98 130488 65 ---5001,2-Dibromo-3-chloropropane ug/kg 86 135430 40 ---5001,2-Dibromoethane ug/kg 105 125523 70 ---5001,2-Dichlorobenzene ug/kg 99 120496 75 ---5001,2-Dichloroethane ug/kg 100 135499 70 ---5001,2-Dichloropropane ug/kg 98 120490 70 ---5001,3-Dichlorobenzene ug/kg 101 125505 70 ---5001,4-Dichloro-2-butene ug/kg 78 146390 51 ---5001,4-Dioxane ug/kg 94 13823500 58 ---25000112Trichloro122trifluoroethane ug/kg 94 129940 75 ---10002-Butanone ug/kg 94 1604690 30 ---50002-Hexanone ug/kg 99 1454930 45 ---50004-Methyl-2-pentanone ug/kg 98 1454900 45 ---5000Acetone ug/kg 97 1604860 20 ---5000Benzene ug/kg 101 125503 75 ---500Bromochloromethane ug/kg 98 125488 70 ---500Bromodichloromethane ug/kg 105 130524 70 ---500Bromoform ug/kg 106 135528 55 ---500Bromomethane ug/kg 115 160573 30 ---500Carbon disulfide ug/kg 97 160971 45 ---1000Carbon tetrachloride ug/kg 107 135537 65 ---500Chlorobenzene ug/kg 98 125492 75 ---500Chloroethane ug/kg 98 155488 40 ---500Chloroform ug/kg 100 125500 70 ---500Chloromethane ug/kg 91 130454 50 ---500cis-1,2-Dichloroethene ug/kg 98 125489 65 ---500cis-1,3-Dichloropropene ug/kg 100 125500 70 ---500Cyclohexane ug/kg 98 128489 73 ---500Dibromochloromethane ug/kg 102 130510 65 ---500Dichlorodifluoromethane ug/kg 101 135504 35 ---500Ethylbenzene ug/kg 102 125508 75 ---500Isopropylbenzene ug/kg 102 130510 75 ---500m & p-Xylene ug/kg 99 125994 80 ---1000Methyl acetate ug/kg 101 176507 37 ---500Methyl tert-butyl ether ug/kg 96 125479 74 ---500Methylcyclohexane ug/kg 97 126483 73 ---500Methylene chloride ug/kg 91 140457 55 ---500

Date Printed: 06/16/2016

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Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Soil

05/29/2016Analytical Run #: Analysis Date:09:27Analysis Time:728358

57445

RLDCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

Naphthalene ug/kg 100 125499 40 ---500o-Xylene ug/kg 104 125521 75 ---500Styrene ug/kg 100 125500 75 ---500Tetrachloroethene ug/kg 103 140515 65 ---500Toluene ug/kg 102 125512 70 ---500trans-1,2-Dichloroethene ug/kg 100 135500 65 ---500trans-1,3-Dichloropropene ug/kg 103 125513 65 ---500Trichloroethene ug/kg 98 125491 75 ---500Trichlorofluoromethane ug/kg 108 185539 25 ---500Vinyl chloride ug/kg 100 125502 60 ---500

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Project Number: SDG #: 0 Folder #: 119285

Method Blank Soil

05/29/2016Analytical Run #: Analysis Date:10:24Analysis Time:728357

57445

RLDCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

1,1,1-Trichloroethane ug/kg U 2510 01,1,2,2-Tetrachloroethane ug/kg U 256 01,1,2-Trichloroethane ug/kg U 258 01,1-Dichloroethane ug/kg U 2511 01,1-Dichloroethene ug/kg U 2516 01,2,3-Trichlorobenzene ug/kg U 258 01,2,4-Trichlorobenzene ug/kg U 259 01,2-Dibromo-3-chloropropane ug/kg U 2512 01,2-Dibromoethane ug/kg U 2510 01,2-Dichlorobenzene ug/kg U 259 01,2-Dichloroethane ug/kg U 2512 01,2-Dichloropropane ug/kg U 257 01,3-Dichlorobenzene ug/kg U 258 01,4-Dichloro-2-butene ug/kg U 259 01,4-Dioxane ug/kg U 2500400 0112Trichloro122trifluoroethane ug/kg U 5020 02-Butanone ug/kg U 250100 02-Hexanone ug/kg U 25068 04-Methyl-2-pentanone ug/kg U 25082 0Acetone ug/kg U 25063 0Benzene ug/kg U 255 0Bromochloromethane ug/kg U 258 0Bromodichloromethane ug/kg U 259 0Bromoform ug/kg U 256 0Bromomethane ug/kg U 5030 0Carbon disulfide ug/kg U 5015 0Carbon tetrachloride ug/kg U 2511 0Chlorobenzene ug/kg U 258 0Chloroethane ug/kg U 2519 0Chloroform ug/kg U 259 0Chloromethane ug/kg U 5025 0cis-1,2-Dichloroethene ug/kg U 2510 0cis-1,3-Dichloropropene ug/kg U 2510 0Cyclohexane ug/kg U 2512 0Dibromochloromethane ug/kg U 258 0Dichlorodifluoromethane ug/kg U 2513 0Ethylbenzene ug/kg U 258 0Isopropylbenzene ug/kg U 258 0m & p-Xylene ug/kg U 5018 0Methyl acetate ug/kg U 2512 0Methyl tert-butyl ether ug/kg U 5028 0Methylcyclohexane ug/kg U 259 0Methylene chloride ug/kg U 5040 0

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Project Number: SDG #: 0 Folder #: 119285

Method Blank Soil

05/29/2016Analytical Run #: Analysis Date:10:24Analysis Time:728357

57445

RLDCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

Naphthalene ug/kg U 2510 0o-Xylene ug/kg U 258 0Styrene ug/kg U 256 0Tetrachloroethene ug/kg U 258 0Toluene ug/kg U 257 0trans-1,2-Dichloroethene ug/kg U 2511 0trans-1,3-Dichloropropene ug/kg U 257 0Trichloroethene ug/kg U 2510 0Trichlorofluoromethane ug/kg U 2513 0Vinyl chloride ug/kg U 2514 0

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Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Water

05/31/2016Analytical Run #: Analysis Date:09:58Analysis Time:729719AGK

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

1,1,1-Trichloroethane ug/L 106 13010.6 65 ---10.01,1,2,2-Tetrachloroethane ug/L 97 1309.72 65 ---10.01,1,2-Trichloroethane ug/L 93 1259.30 75 ---10.01,1-Dichloroethane ug/L 100 13510.0 70 ---10.01,1-Dichloroethene ug/L 99 1309.90 70 ---10.01,2,3-Trichlorobenzene ug/L 95 1409.54 55 ---10.01,2,4-Trichlorobenzene ug/L 97 1359.66 65 ---10.01,2-Dibromo-3-chloropropane ug/L 92 1309.17 50 ---10.01,2-Dibromoethane ug/L 97 1209.66 80 ---10.01,2-Dichlorobenzene ug/L 96 1209.55 70 ---10.01,2-Dichloroethane ug/L 107 13010.7 70 ---10.01,2-Dichloropropane ug/L 96 1259.56 75 ---10.01,3-Dichlorobenzene ug/L 100 12510.0 75 ---10.01,4-Dichloro-2-butene ug/L 109 13010.9 70 ---10.01,4-Dioxane ug/L 140 130700 70 ---500112Trichloro122trifluoroethane ug/L 104 13020.7 70 ---20.02-Butanone ug/L 100 150100 30 ---1002-Hexanone ug/L 104 130104 55 ---1004-Methyl-2-pentanone ug/L 106 135106 60 ---100Acetone ug/L 90 14089.8 40 ---100Benzene ug/L 105 12010.5 80 ---10.0Bromochloromethane ug/L 99 1309.92 65 ---10.0Bromodichloromethane ug/L 103 12010.3 75 ---10.0Bromoform ug/L 103 13010.3 70 ---10.0Bromomethane ug/L 98 1459.85 30 ---10.0Carbon disulfide ug/L 110 16021.9 35 ---20.0Carbon tetrachloride ug/L 107 14010.7 65 ---10.0Chlorobenzene ug/L 102 12010.2 80 ---10.0Chloroethane ug/L 109 13510.9 60 ---10.0Chloroform ug/L 106 13510.6 65 ---10.0Chloromethane ug/L 102 12510.2 40 ---10.0cis-1,2-Dichloroethene ug/L 92 1259.24 70 ---10.0cis-1,3-Dichloropropene ug/L 101 13010.1 70 ---10.0Cyclohexane ug/L 104 13010.4 70 ---10.0Dibromochloromethane ug/L 104 13510.4 60 ---10.0Dichlorodifluoromethane ug/L 109 15510.9 30 ---10.0Ethylbenzene ug/L 107 12510.7 75 ---10.0Isopropylbenzene ug/L 107 12510.7 75 ---10.0m & p-Xylene ug/L 104 13020.8 75 ---20.0Methyl acetate ug/L 96 1309.61 70 ---10.0Methyl tert-butyl ether ug/L 102 12510.2 65 ---10.0Methylcyclohexane ug/L 105 13010.5 70 ---10.0Methylene chloride ug/L 102 14010.2 55 ---10.0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Water

05/31/2016Analytical Run #: Analysis Date:09:58Analysis Time:729719AGK

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

o-Xylene ug/L 103 12010.3 80 ---10.0Styrene ug/L 103 13510.3 65 ---10.0Tetrachloroethene ug/L 104 15010.4 45 ---10.0Toluene ug/L 108 12010.8 75 ---10.0trans-1,2-Dichloroethene ug/L 100 14010.0 60 ---10.0trans-1,3-Dichloropropene ug/L 107 14010.7 55 ---10.0Trichloroethene ug/L 99 1259.88 70 ---10.0Trichlorofluoromethane ug/L 103 14510.3 60 ---10.0Vinyl chloride ug/L 112 14511.2 50 ---10.0

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Project Number: SDG #: 0 Folder #: 119285

Method Blank Water

05/31/2016Analytical Run #: Analysis Date:10:58Analysis Time:729758AGK

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

1,1,1-Trichloroethane ug/L U 0.250.21 01,1,2,2-Tetrachloroethane ug/L U 0.250.19 01,1,2-Trichloroethane ug/L U 0.500.26 01,1-Dichloroethane ug/L U 0.250.20 01,1-Dichloroethene ug/L U 0.250.24 01,2,3-Trichlorobenzene ug/L U 0.50.3 01,2,4-Trichlorobenzene ug/L U 0.50.3 01,2-Dibromo-3-chloropropane ug/L U 0.50.4 01,2-Dibromoethane ug/L U 0.250.16 01,2-Dichlorobenzene ug/L U 0.250.23 01,2-Dichloroethane ug/L U 0.50.3 01,2-Dichloropropane ug/L U 0.250.22 01,3-Dichlorobenzene ug/L U 0.500.26 01,4-Dichloro-2-butene ug/L U 0.250.21 01,4-Dioxane ug/L U 12.55 0112Trichloro122trifluoroethane ug/L U 0.50.5 02-Butanone ug/L U 2.52.4 02-Hexanone ug/L U 54 04-Methyl-2-pentanone ug/L U 53 0Acetone ug/L U 55 0Benzene ug/L U 0.250.19 0Bromochloromethane ug/L U 0.250.19 0Bromodichloromethane ug/L U 0.250.20 0Bromoform ug/L U 0.250.22 0Bromomethane ug/L U 0.50.5 0Carbon disulfide ug/L U 0.50.5 0Carbon tetrachloride ug/L U 0.250.23 0Chlorobenzene ug/L U 0.250.24 0Chloroethane ug/L U 0.50.4 0Chloroform ug/L U 0.250.15 0Chloromethane ug/L U 0.50.4 0cis-1,2-Dichloroethene ug/L U 0.250.25 0cis-1,3-Dichloropropene ug/L U 0.250.19 0Cyclohexane ug/L U 0.500.28 0Dibromochloromethane ug/L U 0.250.19 0Dichlorodifluoromethane ug/L U 0.500.26 0Ethylbenzene ug/L U 0.250.22 0Isopropylbenzene ug/L U 0.250.18 0m & p-Xylene ug/L U 0.50.5 0Methyl acetate ug/L U 0.50.3 0Methyl tert-butyl ether ug/L U 0.500.29 0Methylcyclohexane ug/L U 0.250.23 0Methylene chloride ug/L U 1.00.4 0

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Project Number: SDG #: 0 Folder #: 119285

Method Blank Water

05/31/2016Analytical Run #: Analysis Date:10:58Analysis Time:729758AGK

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

o-Xylene ug/L U 0.250.24 0Styrene ug/L U 0.250.20 0Tetrachloroethene ug/L U 0.50.3 0Toluene ug/L U 0.250.22 0trans-1,2-Dichloroethene ug/L U 0.250.25 0trans-1,3-Dichloropropene ug/L U 0.250.19 0Trichloroethene ug/L U 0.250.21 0Trichlorofluoromethane ug/L U 0.250.20 0Vinyl chloride ug/L U 0.250.18 0

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Lab Control Spike Water

06/02/2016Analytical Run #: Analysis Date:14:49Analysis Time:728571

57456

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

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RPDQualifier(s)QCsample result

Parent sample result

126587Method: SW808205/27/201611:00

Aroclor-1016 ug/L 81 129 304.03 46 ---5.00Aroclor-1221 0 130 300 70 ---5.00Aroclor-1232 0 130 300 70 ---5.00Aroclor-1242 0 130 300 70 ---5.00Aroclor-1248 0 130 300 70 ---5.00Aroclor-1254 0 127 300 34 ---5.00Aroclor-1260 ug/L 80 134 303.98 45 ---5.00Aroclor-1262 0 130 300 70 ---5.00Aroclor-1268 0 130 300 70 ---5.00

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Method Blank Water

06/02/2016Analytical Run #: Analysis Date:14:30Analysis Time:728570

57456

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126587Method: SW808205/27/201611:00

Aroclor-1016 ug/L U 0.500.113 0Aroclor-1221 ug/L U 0.500.085 0Aroclor-1232 ug/L U 0.500.145 0Aroclor-1242 ug/L U 0.500.096 0Aroclor-1248 ug/L U 0.500.088 0Aroclor-1254 ug/L U 0.500.094 0Aroclor-1260 ug/L U 0.500.099 0Aroclor-1262 ug/L U 0.500.28 0Aroclor-1268 ug/L U 0.500.056 0

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Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Water

06/06/2016Analytical Run #: Analysis Date:23:31Analysis Time:728576

57457

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

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Parent sample result

126588Method: SW808105/27/201611:00

4,4'-DDD ug/L 118 150 300.474 25 ---0.4004,4'-DDE ug/L 118 140 300.473 35 ---0.4004,4'-DDT ug/L 115 140 300.459 45 ---0.400Aldrin ug/L 108 140 300.433 25 ---0.400alpha-BHC ug/L 114 130 300.454 60 ---0.400alpha-Chlordane ug/L 116 125 300.465 65 ---0.400beta-BHC ug/L 119 125 300.475 65 ---0.400Chlordane (Technical) ug/L 87 122 302.18 72 ---2.50delta-BHC ug/L 115 135 300.459 45 ---0.400Dieldrin ug/L 118 130 300.470 60 ---0.400Endosulfan I ug/L 116 110 300.462 50 ---0.400Endosulfan II ug/L 118 130 300.473 30 ---0.400Endosulfan sulfate ug/L 120 135 300.480 55 ---0.400Endrin ug/L 120 135 300.481 55 ---0.400Endrin aldehyde ug/L 111 135 300.445 55 ---0.400Endrin ketone ug/L 118 125 300.474 75 ---0.400gamma-Chlordane ug/L 116 125 300.465 60 ---0.400Heptachlor ug/L 115 130 300.460 40 ---0.400Heptachlor epoxide ug/L 115 130 300.460 60 ---0.400Lindane ug/L 115 135 300.459 25 ---0.400Methoxychlor ug/L 119 150 300.476 55 ---0.400Toxaphene ug/L 87 129 302.17 73 ---2.50

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Method Blank Water

06/06/2016Analytical Run #: Analysis Date:23:15Analysis Time:728575

57457

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

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Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126588Method: SW808105/27/201611:00

4,4'-DDD ug/L U 0.0120.006 04,4'-DDE ug/L U 0.0200.006 04,4'-DDT ug/L U 0.0120.007 0Aldrin ug/L U 0.0120.006 0alpha-BHC ug/L U 0.0120.005 0alpha-Chlordane ug/L U 0.0200.009 0beta-BHC ug/L U 0.0200.009 0Chlordane (Technical) ug/L U 0.3000.102 0delta-BHC ug/L U 0.0120.005 0Dieldrin ug/L U 0.0120.006 0Endosulfan I ug/L U 0.0200.009 0Endosulfan II ug/L U 0.0120.007 0Endosulfan sulfate ug/L U 0.0120.006 0Endrin ug/L U 0.0120.006 0Endrin aldehyde ug/L U 0.0200.009 0Endrin ketone ug/L U 0.0120.007 0gamma-Chlordane ug/L U 0.0120.007 0Heptachlor ug/L U 0.0120.006 0Heptachlor epoxide ug/L U 0.0120.007 0Lindane ug/L U 0.0120.007 0Methoxychlor ug/L U 0.0200.006 0Toxaphene ug/L U 0.3000.176 0

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Lab Control Spike Water

06/01/2016Analytical Run #: Analysis Date:16:48Analysis Time:728581

57458

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

1,1'-Biphenyl ug/L 82 150 3016.3 50 ---20.01,2,4,5-Tetrachlorobenzene ug/L 74 110 3014.7 40 ---20.02,4,5-Trichlorophenol ug/L 84 110 3016.9 50 ---20.02,4,6-Trichlorophenol ug/L 82 115 3016.3 50 ---20.02,4-Dichlorophenol ug/L 80 105 3016.0 50 ---20.02,4-Dimethylphenol ug/L 74 110 3014.8 30 ---20.02,4-Dinitrophenol ug/L 86 140 3017.1 15 ---20.02,4-Dinitrotoluene ug/L 90 120 3018.1 50 ---20.02,6-Dinitrotoluene ug/L 87 115 3017.4 50 ---20.02-Chloronaphthalene ug/L 74 105 3014.8 50 ---20.02-Chlorophenol ug/L 74 105 3014.8 35 ---20.02-Methylnaphthalene ug/L 75 105 3015.0 45 ---20.02-Methylphenol ug/L 70 110 3013.9 40 ---20.02-Nitroaniline ug/L 86 115 3017.2 50 ---20.02-Nitrophenol ug/L 78 115 3015.7 40 ---20.03 & 4-Methylphenol ug/L 67 110 3013.4 30 ---20.03,3'-Dichlorobenzidine ug/L 76 110 3015.1 20 ---20.03-Nitroaniline ug/L 76 125 3015.1 20 ---20.04,6-Dinitro-2-methylphenol ug/L 92 130 3018.5 40 ---20.04-Bromophenyl-phenyl ether ug/L 88 115 3017.6 50 ---20.04-Chloro-3-methylphenol ug/L 84 110 3016.8 45 ---20.04-Chloroaniline ug/L 72 110 3014.4 15 ---20.04-Chlorophenyl-phenyl ether ug/L 84 110 3016.9 50 ---20.04-Nitroaniline ug/L 89 120 3017.8 35 ---20.04-Nitrophenol ug/L 49 125 309.80 0 ---20.0Acenaphthene ug/L 78 110 3015.6 45 ---20.0Acenaphthylene ug/L 78 105 3015.6 50 ---20.0Acetophenone ug/L 78 124 3015.6 40 ---20.0Anthracene ug/L 90 110 3018.1 55 ---20.0Atrazine ug/L 100 150 3020.1 50 ---20.0Benzaldehyde ug/L 70 118 3013.9 15 ---20.0Benzo(a)anthracene ug/L 90 110 3017.9 55 ---20.0Benzo(a)pyrene ug/L 86 110 3017.3 55 ---20.0Benzo(b)fluoranthene ug/L 87 120 3017.4 45 ---20.0Benzo(g,h,i)perylene ug/L 84 125 3016.8 40 ---20.0Benzo(k)fluoranthene ug/L 86 125 3017.2 45 ---20.0Bis(2-chloroethoxy)methane ug/L 79 105 3015.8 45 ---20.0Bis(2-chloroethyl)ether ug/L 74 110 3014.7 35 ---20.0Bis(2-chloroisopropyl)ether ug/L 74 130 3014.8 25 ---20.0Bis(2-ethylhexyl)phthalate ug/L 89 125 3017.8 40 ---20.0Butylbenzylphthalate ug/L 90 115 3018.0 45 ---20.0Caprolactam ug/L 33 120 306.53 10 ---20.0Carbazole ug/L 92 115 3018.4 50 ---20.0

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Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Water

06/01/2016Analytical Run #: Analysis Date:16:48Analysis Time:728581

57458

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

Chrysene ug/L 88 110 3017.7 55 ---20.0Di-n-butylphthalate ug/L 92 115 3018.4 55 ---20.0Di-n-octylphthalate ug/L 89 135 3017.8 35 ---20.0Dibenzo(a,h)anthracene ug/L 84 125 3016.7 40 ---20.0Dibenzofuran ug/L 82 105 3016.4 55 ---20.0Diethylphthalate ug/L 87 120 3017.4 40 ---20.0Dimethylphthalate ug/L 86 125 3017.2 25 ---20.0Fluoranthene ug/L 92 115 3018.4 55 ---20.0Fluorene ug/L 83 110 3016.6 50 ---20.0Hexachlorobenzene ug/L 88 110 3017.6 50 ---20.0Hexachlorobutadiene ug/L 70 105 3013.9 25 ---20.0Hexachlorocyclopentadiene ug/L 67 113 3013.4 45 ---20.0Hexachloroethane ug/L 68 95 3013.5 30 ---20.0Indeno(1,2,3-cd)pyrene ug/L 82 125 3016.5 45 ---20.0Isophorone ug/L 78 110 3015.5 50 ---20.0N-Nitroso-di-n-propylamine ug/L 78 130 3015.7 35 ---20.0N-Nitrosodiphenylamine & Diphn ug/L 89 110 3035.7 50 ---40.0Naphthalene ug/L 75 100 3015.0 40 ---20.0Nitrobenzene ug/L 78 110 3015.5 45 ---20.0Pentachlorophenol ug/L 98 115 3019.7 40 ---20.0Phenanthrene ug/L 89 115 3017.8 50 ---20.0Phenol ug/L 38 115 307.58 0 ---20.0Pyrene ug/L 88 130 3017.6 50 ---20.0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Method Blank Water

06/01/2016Analytical Run #: Analysis Date:16:25Analysis Time:728580

57458

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

1,1'-Biphenyl ug/L U 2.000.151,2,4,5-Tetrachlorobenzene ug/L U 0.500.17 02,4,5-Trichlorophenol ug/L U 2.51.1 02,4,6-Trichlorophenol ug/L U 2.51.0 02,4-Dichlorophenol ug/L U 2.51.0 02,4-Dimethylphenol ug/L U 2.50.82 02,4-Dinitrophenol ug/L U 5.01.5 02,4-Dinitrotoluene ug/L U 0.500.21 02,6-Dinitrotoluene ug/L U 0.500.28 02-Chloronaphthalene ug/L U 0.500.18 02-Chlorophenol ug/L U 2.50.87 02-Methylnaphthalene ug/L U 0.500.17 02-Methylphenol ug/L U 2.50.86 02-Nitroaniline ug/L U 1.000.22 02-Nitrophenol ug/L U 2.50.90 03 & 4-Methylphenol ug/L U 4.51.4 03,3'-Dichlorobenzidine ug/L U 1.250.66 03-Nitroaniline ug/L U 1.000.26 04,6-Dinitro-2-methylphenol ug/L U 5.01.6 04-Bromophenyl-phenyl ether ug/L U 1.000.20 04-Chloro-3-methylphenol ug/L U 2.500.76 04-Chloroaniline ug/L U 0.500.12 04-Chlorophenyl-phenyl ether ug/L U 0.500.18 04-Nitroaniline ug/L U 0.500.15 04-Nitrophenol ug/L U 5.01.1 0Acenaphthene ug/L U 0.500.18 0Acenaphthylene ug/L U 0.500.17 0Acetophenone ug/L U 0.500.27 0Anthracene ug/L U 0.500.11 0Atrazine ug/L U 0.500.26Benzaldehyde ug/L U 0.500.25Benzo(a)anthracene ug/L U 0.500.12 0Benzo(a)pyrene ug/L U 0.500.14 0Benzo(b)fluoranthene ug/L U 0.500.17 0Benzo(g,h,i)perylene ug/L U 0.500.21 0Benzo(k)fluoranthene ug/L U 0.500.20 0Bis(2-chloroethoxy)methane ug/L U 0.500.19 0Bis(2-chloroethyl)ether ug/L U 0.500.21 0Bis(2-chloroisopropyl)ether ug/L U 0.500.22 0Bis(2-ethylhexyl)phthalate ug/L U 1.000.44 0Butylbenzylphthalate ug/L U 1.000.47 0Caprolactam ug/L U 1.000.19Carbazole ug/L U 0.500.12 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Method Blank Water

06/01/2016Analytical Run #: Analysis Date:16:25Analysis Time:728580

57458

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

Chrysene ug/L U 0.500.16 0Di-n-butylphthalate ug/L U 2.000.67 0Di-n-octylphthalate ug/L U 1.000.49 0Dibenzo(a,h)anthracene ug/L U 0.500.17 0Dibenzofuran ug/L U 0.500.19 0Diethylphthalate ug/L U 1.000.45 0Dimethylphthalate ug/L U 1.000.54 0Fluoranthene ug/L U 0.500.13 0Fluorene ug/L U 0.500.19 0Hexachlorobenzene ug/L U 0.500.27 0Hexachlorobutadiene ug/L U 0.500.18 0Hexachlorocyclopentadiene ug/L U 1.000.26 0Hexachloroethane ug/L U 0.500.22 0Indeno(1,2,3-cd)pyrene ug/L U 0.500.18 0Isophorone ug/L U 0.500.18 0N-Nitroso-di-n-propylamine ug/L U 0.500.18 0N-Nitrosodiphenylamine & Diphn ug/L U 1.000.36 0Naphthalene ug/L U 0.500.18 0Nitrobenzene ug/L U 0.500.16 0Pentachlorophenol ug/L U 2.51.1 0Phenanthrene ug/L U 0.500.30 0Phenol ug/L U 2.500.48 0Pyrene ug/L U 0.500.13 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Soil

06/02/2016Analytical Run #: Analysis Date:19:20Analysis Time:729036

57486

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JDB

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126652Method: SW808205/27/201614:00

Aroclor-1016 ug/kg 107 134 30535 47 ---500Aroclor-1221 0 130 300 70 ---500Aroclor-1232 0 130 300 70 ---500Aroclor-1242 0 130 300 70 ---500Aroclor-1248 0 130 300 70 ---500Aroclor-1254 0 135 300 67 ---500Aroclor-1260 ug/kg 105 140 30525 53 ---500Aroclor-1262 0 130 300 70 ---500Aroclor-1268 0 130 300 70 ---500

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Project Number: SDG #: 0 Folder #: 119285

Method Blank Soil

06/02/2016Analytical Run #: Analysis Date:19:01Analysis Time:729035

57486

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JDB

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126652Method: SW808205/27/201614:00

Aroclor-1016 ug/kg U 155 0Aroclor-1221 ug/kg U 157 0Aroclor-1232 ug/kg U 159 0Aroclor-1242 ug/kg U 157 0Aroclor-1248 ug/kg U 157 0Aroclor-1254 ug/kg U 159 0Aroclor-1260 ug/kg U 156 0Aroclor-1262 ug/kg U 157 0Aroclor-1268 ug/kg U 155 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Soil

06/02/2016Analytical Run #: Analysis Date:15:50Analysis Time:729027

57484

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

1,1'-Biphenyl ug/kg 70 106 301400 50 ---20001,2,4,5-Tetrachlorobenzene ug/kg 66 106 301310 47 ---20002,4,5-Trichlorophenol ug/kg 78 110 301550 50 ---20002,4,6-Trichlorophenol ug/kg 71 110 301420 45 ---20002,4-Dichlorophenol ug/kg 66 110 301310 45 ---20002,4-Dimethylphenol ug/kg 60 105 301210 30 ---20002,4-Dinitrophenol ug/kg 54 130 301070 15 ---20002,4-Dinitrotoluene ug/kg 86 115 301720 50 ---20002,6-Dinitrotoluene ug/kg 78 108 301570 49 ---20002-Chloronaphthalene ug/kg 65 105 301300 45 ---20002-Chlorophenol ug/kg 66 105 301320 45 ---20002-Methylnaphthalene ug/kg 62 105 301250 45 ---20002-Methylphenol ug/kg 64 105 301280 40 ---20002-Nitroaniline ug/kg 79 120 301580 45 ---20002-Nitrophenol ug/kg 66 110 301310 40 ---20003 & 4-Methylphenol ug/kg 70 105 301390 40 ---20003,3'-Dichlorobenzidine ug/kg 61 130 301220 10 ---20003-Nitroaniline ug/kg 64 110 301270 25 ---20004,6-Dinitro-2-methylphenol ug/kg 74 135 301470 30 ---20004-Bromophenyl-phenyl ether ug/kg 79 115 301580 45 ---20004-Chloro-3-methylphenol ug/kg 73 115 301460 45 ---20004-Chloroaniline ug/kg 42 95 30843 10 ---20004-Chlorophenyl-phenyl ether ug/kg 76 110 301520 45 ---20004-Nitroaniline ug/kg 82 115 301640 35 ---20004-Nitrophenol ug/kg 82 140 301640 15 ---2000Acenaphthene ug/kg 69 110 301380 45 ---2000Acenaphthylene ug/kg 68 105 301350 45 ---2000Acetophenone ug/kg 68 105 301350 47 ---2000Anthracene ug/kg 83 105 301660 55 ---2000Atrazine ug/kg 92 150 301830 50 ---2000Benzaldehyde ug/kg 64 150 301270 50 ---2000Benzo(a)anthracene ug/kg 86 110 301710 55 ---2000Benzo(a)pyrene ug/kg 80 110 301600 55 ---2000Benzo(b)fluoranthene ug/kg 84 115 301690 45 ---2000Benzo(g,h,i)perylene ug/kg 75 125 301500 40 ---2000Benzo(k)fluoranthene ug/kg 77 105 301540 45 ---2000Bis(2-chloroethoxy)methane ug/kg 66 110 301310 45 ---2000Bis(2-chloroethyl)ether ug/kg 62 105 301250 40 ---2000Bis(2-chloroisopropyl)ether ug/kg 64 115 301290 20 ---2000Bis(2-ethylhexyl)phthalate ug/kg 86 125 301710 45 ---2000Butylbenzylphthalate ug/kg 85 125 301700 50 ---2000Caprolactam ug/kg 90 150 301810 50 ---2000Carbazole ug/kg 85 115 301700 45 ---2000

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Soil

06/02/2016Analytical Run #: Analysis Date:15:50Analysis Time:729027

57484

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

Chrysene ug/kg 84 110 301680 55 ---2000Di-n-butylphthalate ug/kg 84 110 301680 55 ---2000Di-n-octylphthalate ug/kg 84 130 301670 40 ---2000Dibenzo(a,h)anthracene ug/kg 76 125 301520 40 ---2000Dibenzofuran ug/kg 72 105 301450 50 ---2000Diethylphthalate ug/kg 82 115 301630 50 ---2000Dimethylphthalate ug/kg 80 110 301590 50 ---2000Fluoranthene ug/kg 84 115 301680 55 ---2000Fluorene ug/kg 76 110 301510 50 ---2000Hexachlorobenzene ug/kg 83 120 301660 45 ---2000Hexachlorobutadiene ug/kg 64 115 301270 40 ---2000Hexachlorocyclopentadiene ug/kg 27 106 30538 35 ---2000Hexachloroethane ug/kg 62 110 301250 35 ---2000Indeno(1,2,3-cd)pyrene ug/kg 75 120 301500 40 ---2000Isophorone ug/kg 65 110 301300 45 ---2000N-Nitroso-di-n-propylamine ug/kg 67 115 301340 40 ---2000N-Nitrosodiphenylamine & Diphn ug/kg 82 115 303260 50 ---4000Naphthalene ug/kg 64 105 301290 40 ---2000Nitrobenzene ug/kg 66 115 301330 40 ---2000Pentachlorophenol ug/kg 80 120 301590 25 ---2000Phenanthrene ug/kg 81 110 301620 50 ---2000Phenol ug/kg 63 100 301260 40 ---2000Pyrene ug/kg 84 125 301690 45 ---2000

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Method Blank Soil

06/02/2016Analytical Run #: Analysis Date:15:27Analysis Time:729026

57484

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

1,1'-Biphenyl ug/kg U 60211,2,4,5-Tetrachlorobenzene ug/kg U 6022 02,4,5-Trichlorophenol ug/kg U 300130 02,4,6-Trichlorophenol ug/kg U 300130 02,4-Dichlorophenol ug/kg U 300120 02,4-Dimethylphenol ug/kg U 30099 02,4-Dinitrophenol ug/kg U 500270 02,4-Dinitrotoluene ug/kg U 6024 02,6-Dinitrotoluene ug/kg U 6024 02-Chloronaphthalene ug/kg U 6023 02-Chlorophenol ug/kg U 1000340 02-Methylnaphthalene ug/kg U 6025 02-Methylphenol ug/kg U 1000420 02-Nitroaniline ug/kg U 6023 02-Nitrophenol ug/kg U 500280 03 & 4-Methylphenol ug/kg U 1800650 03,3'-Dichlorobenzidine ug/kg U 250150 03-Nitroaniline ug/kg U 6022 04,6-Dinitro-2-methylphenol ug/kg U 500270 04-Bromophenyl-phenyl ether ug/kg U 6025 04-Chloro-3-methylphenol ug/kg U 1000380 04-Chloroaniline ug/kg U 10039 04-Chlorophenyl-phenyl ether ug/kg U 6026 04-Nitroaniline ug/kg U 6030 04-Nitrophenol ug/kg U 1000400 0Acenaphthene ug/kg U 6024 0Acenaphthylene ug/kg U 6024 0Acetophenone ug/kg U 20075 0Anthracene ug/kg U 6024 0Atrazine ug/kg U 6021Benzaldehyde ug/kg U 6021Benzo(a)anthracene ug/kg U 6025 0Benzo(a)pyrene ug/kg U 6023 0Benzo(b)fluoranthene ug/kg U 6025 0Benzo(g,h,i)perylene ug/kg U 6022 0Benzo(k)fluoranthene ug/kg U 6025 0Bis(2-chloroethoxy)methane ug/kg U 6023 0Bis(2-chloroethyl)ether ug/kg U 6025 0Bis(2-chloroisopropyl)ether ug/kg U 6030 0Bis(2-ethylhexyl)phthalate ug/kg U 20087 0Butylbenzylphthalate ug/kg U 20073 0Caprolactam ug/kg U 20075Carbazole ug/kg U 6028 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Method Blank Soil

06/02/2016Analytical Run #: Analysis Date:15:27Analysis Time:729026

57484

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

Chrysene ug/kg U 6025 0Di-n-butylphthalate ug/kg U 20079 0Di-n-octylphthalate ug/kg U 10059 0Dibenzo(a,h)anthracene ug/kg U 6022 0Dibenzofuran ug/kg U 6024 0Diethylphthalate ug/kg U 20064 0Dimethylphthalate ug/kg U 20063 0Fluoranthene ug/kg U 6026 0Fluorene ug/kg U 6025 0Hexachlorobenzene ug/kg U 6028 0Hexachlorobutadiene ug/kg U 20062 0Hexachlorocyclopentadiene ug/kg U 10052 Q 0Hexachloroethane ug/kg U 6033 0Indeno(1,2,3-cd)pyrene ug/kg U 6023 0Isophorone ug/kg U 10050 0N-Nitroso-di-n-propylamine ug/kg U 20070 0N-Nitrosodiphenylamine & Diphn ug/kg U 12050 0Naphthalene ug/kg U 6021 0Nitrobenzene ug/kg U 10059 0Pentachlorophenol ug/kg U 500240 0Phenanthrene ug/kg U 6026 0Phenol ug/kg U 300160 0Pyrene ug/kg U 6026 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Lab Control Spike Soil

06/07/2016Analytical Run #: Analysis Date:14:45Analysis Time:729032

57485

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126675Method: SW808105/27/201614:00

4,4'-DDD ug/kg 129 13551.7 30 ---40.04,4'-DDE ug/kg 125 12549.9 70 ---40.04,4'-DDT ug/kg 114 14045.4 45 ---40.0Aldrin ug/kg 118 14047.0 45 ---40.0alpha-BHC ug/kg 117 12546.9 60 ---40.0alpha-Chlordane ug/kg 122 12048.6 65 ---40.0beta-BHC ug/kg 122 12548.7 60 ---40.0Chlordane (Technical) ug/kg 84 130211 53 ---250delta-BHC ug/kg 122 13048.8 55 ---40.0Dieldrin ug/kg 121 12548.5 65 ---40.0Endosulfan I ug/kg 121 13548.3 15 ---40.0Endosulfan II ug/kg 124 14049.7 35 ---40.0Endosulfan sulfate ug/kg 125 13550.1 60 ---40.0Endrin ug/kg 118 13547.2 60 ---40.0Endrin aldehyde ug/kg 120 14548.1 35 ---40.0Endrin ketone ug/kg 127 13550.9 65 ---40.0gamma-Chlordane ug/kg 122 12548.7 65 ---40.0Heptachlor ug/kg 114 14045.7 50 ---40.0Heptachlor epoxide ug/kg 120 13048.1 65 ---40.0Lindane ug/kg 119 12547.5 60 ---40.0Methoxychlor ug/kg 118 14547.2 55 ---40.0Toxaphene ug/kg 89 152222 44 ---250

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119285

Method Blank Soil

06/07/2016Analytical Run #: Analysis Date:14:29Analysis Time:729031

57485

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126675Method: SW808105/27/201614:00

4,4'-DDD ug/kg U 1.000.30 04,4'-DDE ug/kg U 1.000.30 04,4'-DDT ug/kg U 1.000.50 0Aldrin ug/kg U 1.000.50 0alpha-BHC ug/kg U 2.000.60 0alpha-Chlordane ug/kg U 1.000.30 0beta-BHC ug/kg U 2.000.60 0Chlordane (Technical) ug/kg U 205 0delta-BHC ug/kg U 1.000.30 0Dieldrin ug/kg U 1.000.30 0Endosulfan I ug/kg U 2.000.70 0Endosulfan II ug/kg U 1.000.30 0Endosulfan sulfate ug/kg U 2.000.90 0Endrin ug/kg U 1.000.40 0Endrin aldehyde ug/kg U 2.001.10 0Endrin ketone ug/kg U 2.000.80 0gamma-Chlordane ug/kg U 1.000.30 0Heptachlor ug/kg U 1.000.40 0Heptachlor epoxide ug/kg U 1.000.50 0Lindane ug/kg U 1.000.50 0Methoxychlor ug/kg U 2.000.70 0Toxaphene ug/kg U 209 0

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119285

Sample Condition Report Folder #: 119285 Print Date / Time: 05/27/2016 07:55 Client: TETRA TECH Received Date / Time / By: 05/26/2016 1025 BNA Project Name: GRADEL LF Log-In Date / Time / By: 05/26/2016 1345 BNA Project Phase: Project #: PM: BMS Coolers: 5465,5662,5590,5013 Temperature: 2.7 C On Ice: Y Custody Seals Present : Y COC Present:? Y Complete? Y Seal Intact? Y Numbers: SIGNED AND DATED Ship Method: FEDEX Tracking Number: 783208529689;783208529690 Adequate Packaging: Y Temp Blank Enclosed? Y Notes: THE SAMPLES WERE RECEIVED IN GOOD CONDITION ON ICE. TWO CUSTODY SEALS WERE PRESENT AND INTACT ON EACH COOLER, ALL DATED 05/25/16 AND SIGNED. ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728765 GL-L-02-052516 AMBER GL 1 / 8270 Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728765 GL-L-02-052516 AMBER GL 1 / HERB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728765 GL-L-02-052516 HNO3 1 Y / HG,ICP,K,NA Total # of Containers of Type ( HNO3 ) = 1 _________________________________________________________________________________________________________ 728765 GL-L-02-052516 AMBER GL 1 / PCB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728765 GL-L-02-052516 AMBER GL 1 / PEST Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728765 GL-L-02-052516 UNPRES PL 1 / pH Total # of Containers of Type ( UNPRES PL ) = 1 _________________________________________________________________________________________________________ 728765 GL-L-02-052516 VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC Total # of Containers of Type ( VOA HCL ) = 3 ___________________________________________________________________________________________________________

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119285

Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728767 GL-L-05-052516 AMBER GL 1 / 8270 Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728767 GL-L-05-052516 AMBER GL 1 / HERB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728767 GL-L-05-052516 HNO3 1 Y / HG,ICP,K,NA Total # of Containers of Type ( HNO3 ) = 1 _________________________________________________________________________________________________________ 728767 GL-L-05-052516 AMBER GL 1 / PCB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728767 GL-L-05-052516 AMBER GL 1 / PEST Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728767 GL-L-05-052516 UNPRES PL 1 / pH Total # of Containers of Type ( UNPRES PL ) = 1 _________________________________________________________________________________________________________ 728767 GL-L-05-052516 VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC Total # of Containers of Type ( VOA HCL ) = 3 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728768 GL-SW-04-052516 AMBER GL 1 / 8270,HERB,PCB,PEST Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728768 GL-SW-04-052516 AMBER GL 1 / HERB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728768 GL-SW-04-052516 HNO3 1 Y / HG,ICP,K,NA Total # of Containers of Type ( HNO3 ) = 1 _________________________________________________________________________________________________________ 728768 GL-SW-04-052516 AMBER GL 1 / PCB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728768 GL-SW-04-052516 AMBER GL 1 / PEST

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Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728768 GL-SW-04-052516 UNPRES PL 1 / pH Total # of Containers of Type ( UNPRES PL ) = 1 _________________________________________________________________________________________________________ 728768 GL-SW-04-052516 VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC Total # of Containers of Type ( VOA HCL ) = 3 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728769 GL-SD-04-052516 SOLIDS 1 / %SOL, Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 728769 GL-SD-04-052516 UNPRES GL 1 / 8270,HERB,PCB,PEST UNPRES GL 1 / 8270,HERB,PCB,PEST Total # of Containers of Type ( UNPRES GL ) = 2 _________________________________________________________________________________________________________ 728769 GL-SD-04-052516 SOLIDS 1 / HG,ICP,K,NA,TOC Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 728769 GL-SD-04-052516 MEOH TARED 1 / VOC MEOH TARED 1 / VOC Total # of Containers of Type ( MEOH TARED ) = 2 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728770 GL-SW-04-052516-DUP AMBER GL 1 / 8270 Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728770 GL-SW-04-052516-DUP AMBER GL 1 / HERB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728770 GL-SW-04-052516-DUP HNO3 1 Y / HG,ICP,K,NA Total # of Containers of Type ( HNO3 ) = 1 _________________________________________________________________________________________________________ 728770 GL-SW-04-052516-DUP AMBER GL 1 / PCB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728770 GL-SW-04-052516-DUP AMBER GL 1 / PEST

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Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728770 GL-SW-04-052516-DUP UNPRES PL 1 / pH Total # of Containers of Type ( UNPRES PL ) = 1 _________________________________________________________________________________________________________ 728770 GL-SW-04-052516-DUP VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC Total # of Containers of Type ( VOA HCL ) = 3 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728771 GL-SD-04-052516-DUP SOLIDS 1 / %SOL Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 728771 GL-SD-04-052516-DUP UNPRES GL 1 / 8270,HERB,PCB,PEST UNPRES GL 1 / 8270,HERB,PCB,PEST Total # of Containers of Type ( UNPRES GL ) = 2 _________________________________________________________________________________________________________ 728771 GL-SD-04-052516-DUP SOLIDS 1 / HG,ICP,K,NA,TOC Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 728771 GL-SD-04-052516-DUP MEOH TARED 1 / VOC MEOH TARED 1 / VOC Total # of Containers of Type ( MEOH TARED ) = 2 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728772 GL-SW-05-052516 AMBER GL 1 / 8270 Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728772 GL-SW-05-052516 AMBER GL 1 / HERB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728772 GL-SW-05-052516 HNO3 1 Y / HG,ICP,K,NA Total # of Containers of Type ( HNO3 ) = 1 _________________________________________________________________________________________________________ 728772 GL-SW-05-052516 AMBER GL 1 / PCB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728772 GL-SW-05-052516 AMBER GL 1 / PEST

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Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728772 GL-SW-05-052516 UNPRES PL 1 / pH Total # of Containers of Type ( UNPRES PL ) = 1 _________________________________________________________________________________________________________ 728772 GL-SW-05-052516 VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC Total # of Containers of Type ( VOA HCL ) = 3 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728773 GL-SD-05-052516 SOLIDS 1 / %SOL Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 728773 GL-SD-05-052516 UNPRES GL 1 / 8270,HERB,PCB,PEST UNPRES GL 1 / 8270,HERB,PCB,PEST Total # of Containers of Type ( UNPRES GL ) = 2 _________________________________________________________________________________________________________ 728773 GL-SD-05-052516 SOLIDS 1 / HG,ICP,K,NA,TOC Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 728773 GL-SD-05-052516 MEOH TARED 1 / VOC MEOH TARED 1 / VOC Total # of Containers of Type ( MEOH TARED ) = 2 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728774 GL-SW-06-052516 AMBER GL 1 / 8270 Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728774 GL-SW-06-052516 AMBER GL 1 / HERB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728774 GL-SW-06-052516 HNO3 1 Y / HG,ICP,K,NA Total # of Containers of Type ( HNO3 ) = 1 _________________________________________________________________________________________________________ 728774 GL-SW-06-052516 AMBER GL 1 / PCB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728774 GL-SW-06-052516 AMBER GL 1 / PEST

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Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 728774 GL-SW-06-052516 UNPRES PL 1 / pH Total # of Containers of Type ( UNPRES PL ) = 1 _________________________________________________________________________________________________________ 728774 GL-SW-06-052516 VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC Total # of Containers of Type ( VOA HCL ) = 3 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728775 GL-SD-06-052516 SOLIDS 1 / %SOL Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 728775 GL-SD-06-052516 UNPRES GL 1 / 8270,HERB,PCB,PEST UNPRES GL 1 / 8270,HERB,PCB,PEST Total # of Containers of Type ( UNPRES GL ) = 2 _________________________________________________________________________________________________________ 728775 GL-SD-06-052516 SOLIDS 1 / HG,ICP,K,NA,TOC Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 728775 GL-SD-06-052516 MEOH TARED 1 / VOC MEOH TARED 1 / VOC Total # of Containers of Type ( MEOH TARED ) = 2 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728776 GL-SD-07-052516 SOLIDS 1 / %SOL, Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 728776 GL-SD-07-052516 UNPRES GL 1 / 8270,HERB,PCB,PEST UNPRES GL 1 / 8270,HERB,PCB,PEST Total # of Containers of Type ( UNPRES GL ) = 2 _________________________________________________________________________________________________________ 728776 GL-SD-07-052516 SOLIDS 1 / HG,ICP,K,NA,TOC Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 728776 GL-SD-07-052516 MEOH TARED 1 / VOC MEOH TARED 1 / VOC Total # of Containers of Type ( MEOH TARED ) = 2 ___________________________________________________________________________________________________________

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Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728777 TRIP BLANK VOA HCL 1 / VOC Total # of Containers of Type ( VOA HCL ) = 1 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728778 GL-S-B1-01-052516 SOLIDS 1 / %SOL Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 728778 GL-S-B1-01-052516 SOLIDS 1 / SUB ASBESTOS DW Total # of Containers of Type ( SOLIDS ) = 1 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 728780 GL-S-B1-02-052516 SOLIDS 1 / %SOL,ICP,K,NA Total # of Containers of Type ( SOLIDS ) = 1 ___________________________________________________________________________________________________________ Condition Code Condition Description 1 Sample Received OK

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Laboratory Report Number: L16051514

Eric KorthalsCT Laboratories1230 Lange CourtBaraboo, WI 53913

Please find enclosed the analytical results for the samples you submitted to Microbac Laboratories. Review and compilation of your report was completed by Microbac’s Ohio Valley Division (OVD). If you have any questions, comments, or require further assistance regarding this report, please contact your service representative listed below.

Laboratory Contact:Emily Yoak – Client Services Specialist(740) [email protected]

I certify that all test results meet all of the requirements of the accrediting authority listed below. All results for soil samples are reported on a 'dry-weight' basis unless specified otherwise. Analytical results for water and wastes are reported on a 'as received' basis unless specified otherwise. A statement of uncertainty for each analysis is available upon request. This laboratory report shall not be reproduced, except in full, without the written approval of Microbac Laboratories. The reported results are related only to the samples analyzed as received.

This report was certified on June 08 2016

David Vandenberg – Managing Director State of Origin: USAccrediting Authority: N/A ID:N/AQAPP: Microbac OVD

Microbac Laboratories * Ohio Valley Division158 Starlite Drive, Marietta, OH 45750 * T: (740) 373-4071 F: (740) 373-4835 * www.microbac.com

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Lab Report #: L16051514

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Record of Sample Receipt and InspectionComments/DiscrepanciesThis is the record of the shipment conditions and the inspection records for the samples received and reported as a sample delivery group (SDG). All of the samples were inspected and observed to conform to our receipt policies, except as noted below.

The following discrepancies were noted:Discrepancy Resolution

Sample ID: 728765 (5/25 @ 08:50). NO sample received. BRG Please proceed with the samples that were received, The client has been notified, SLM

CoolersCooler # Temperature

GunTemperature COC # Airbill # Temp Required?

00113973 I 2.0 1Z1A377E1341378163 X

Inspection Checklist

# Question Result

1 Were shipping coolers sealed? Yes

2 Were custody seals intact? Yes

3 Were cooler temperatures in range of 0-6? Yes

4 Was ice present? Yes

5 Were COC's received/information complete/signed and dated? Yes

6 Were sample containers intact and match COC? Yes

7 Were sample labels intact and match COC? No

8 Were the correct containers and volumes received? Yes

9 Were samples received within EPA hold times? Yes

10 All samples were checked for pH and met the standard. Exceptions are noted above under discrepancy. (water only)

Yes

11 Were pH ranges acceptable? (voa's excluded) NA

12 Were VOA samples free of headspace (less than 6mm)? NA

Microbac Laboratories ● Ohio Valley Division158 Starlite Drive, Marietta, OH 45750 ● T: (740)373-4071 F: (740)373-4835

www.microbac.com

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Lab Report #: L16051514

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Samples ReceivedClient ID Laboratory ID Date Collected Date Received

GL-L-05-052516 L16051514-01 05/25/2016 09:30 05/27/2016 10:36

GLSW-04-052516 L16051514-02 05/25/2016 09:00 05/27/2016 10:36

GL-SD-04-052516 L16051514-03 05/25/2016 09:05 05/27/2016 10:36

GL-SW-04-052516-DUP L16051514-04 05/25/2016 09:00 05/27/2016 10:36

GL-SD-04-052516-DUP L16051514-05 05/25/2016 09:05 05/27/2016 10:36

GL-SW-05-052516 L16051514-06 05/25/2016 11:00 05/27/2016 10:36

GL-SD-05-052516 L16051514-07 05/25/2016 11:05 05/27/2016 10:36

GL-SW-06-052516 L16051514-08 05/25/2016 11:45 05/27/2016 10:36

SL-SD-06-052516 L16051514-09 05/25/2016 11:50 05/27/2016 10:36

GL-SD-07-052516 L16051514-10 05/25/2016 12:15 05/27/2016 10:36

Microbac Laboratories ● Ohio Valley Division158 Starlite Drive, Marietta, OH 45750 ● T: (740)373-4071 F: (740)373-4835

www.microbac.com

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Microbac LaboratoriesCase Narrative

Login Number: L16051514Department: General ChromatographyAnalyst: Eric Lawson

METHOD

Analysis SW-846 8151A

HOLDING TIMES

Sample Preparation: Samples 04, 06 and 08 were extracted out of hold. All other holding times were met.

Sample Analysis: All holding times were met.

PREPARATION

Sample preparation proceeded normally.

CALIBRATION

Initial Calibration: For all compounds that yielded a %RSD greater than 20%, linear or higher order equations were applied. All acceptance criteria were met.

Alternate Source Standards: All acceptance criteria were met.

Continuing Calibration and Tune: All acceptance criteria were met.

BATCH QA/QC

Method Blank: All acceptance criteria were met.

Laboratory Control Sample: All acceptance criteria were met.

Matrix Spikes: There were no MS/MSD results associated with this sample delivery group, due to insufficient volume of sample. The laboratory included an LCS and LCS duplicate in the preparation batch in lieu of the NELAC prescribed MS/MSD. Microbac recommends site specific MS/MSD samples to avoid possible data qualification.

SAMPLES

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Samples: Samples 02, 03, 05, 07, 09 and 10 were analyzed at dilutions due to the appearance of the extracts.

Surrogates: All acceptance criteria were met.

Manual Integration Reason Codes

Reason #1: Data System Fails to Select Correct Peak In some cases the chromatography system selects and integrates the 'wrong peak'. In this case the analyst must correct the selection and force the system to integrate the proper peak. Other times the system may miss the peakcompletely.

Reason #2: Data System Splits the Peak Incorrectly or Integrates a False Peak as a Rider Peak This phenomena is common at low concentrations where the signal:noise ratio is low. A single compound (peak) is incorrectly split into multiple peaks or integrated as a main peak with one or more rider peaks resulting in low areacounts for the target compound.

Reason #3: Improperly Integrated Isomers and/or coeluting compounds. This system often fails to distinguish coeluting compounds and or isomers. The integration areas and concentrations are wrong, and they must be corrected by manual integration. Prime examples are benzo(k)fluoranthene andbenzo(b)fluoranthene which are often unresolved and integrated improperly when both are present at low concentrations in standards or samples.

Reason #4: System Establishes Incorrect Baseline There are numerous situations in chromatography where the system establishes the baseline incorrectly. Some baseline errors will be obvious to the analyst and should be corrected via manual procedures.

Reason #5: Miscellaneous Other situations involving integration errors may require in-depth review and technical judgment. These cases should be brought to the attention of the laboratory management. If the form of manual integration is not clearly covered by these four cases, then review and approval by the Laboratory Director or the QA/QC Supervisor will be required.

I certify that this data package is in compliance with the terms and conditions agreed to by the client and Microbac Laboratories Inc., both technically and for completeness, except for the conditions noted above. Release of the data contained in this hard copy data package has been authorized by the Laboratory Manager or designated person, as verified by the following signature.

Narrative ID: 113321Approved By: Mary Schilling

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Lab Report #: L16051514

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of AnalysisSample #: L16051514-01 PrePrep Method: N/A Instrument: HP17

Client ID: GL-L-05-052516 Prep Method: METHOD Prep Date: 05/31/2016 18:15

Matrix: Water Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG570992 Analyst: ECL Run Date: 06/02/2016 00:44

Collect Date: 05/25/2016 09:30 Dilution: 1 File ID: 17G22048.F

Sample Tag: 01 Units: ug/L

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U 2.08 0.521

2,4-DB 94-82-6 U 2.08 0.521

2,4,5-T 93-76-5 U 0.208 0.0521

2,4,5-TP (Silvex) 93-72-1 U 0.208 0.0521

Dalapon 75-99-0 U 5.21 1.30

Dicamba 1918-00-9 U 0.208 0.104

Dichloroprop 120-36-5 U 2.08 0.521

Dinoseb 88-85-7 U 1.04 0.260

MCPA 94-74-6 U 260 52.1

MCPP 93-65-2 U 260 52.1

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 50.5 20 144

U Analyte was not detected. The concentration is below the reported LOD.

Sample #: L16051514-02 PrePrep Method: N/A Instrument: HP17

Client ID: GLSW-04-052516 Prep Method: METHOD Prep Date: 05/31/2016 18:15

Matrix: Water Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG570992 Analyst: ECL Run Date: 06/02/2016 02:54

Collect Date: 05/25/2016 09:00 Dilution: 5 File ID: 17G22053.F

Sample Tag: DL01 Units: ug/L

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U 10.6 2.66

2,4-DB 94-82-6 U 10.6 2.66

2,4,5-T 93-76-5 U 1.06 0.266

2,4,5-TP (Silvex) 93-72-1 U 1.06 0.266

Dalapon 75-99-0 U 26.6 6.65

Dicamba 1918-00-9 U 1.06 0.532

Dichloroprop 120-36-5 U 10.6 2.66

Dinoseb 88-85-7 U 5.32 1.33

MCPA 94-74-6 U 1330 266

MCPP 93-65-2 U 1330 266

Surrogate Recovery Lower Limit Upper Limit Q

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Lab Report #: L16051514

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of Analysis2,4-Dichlorophenylacetic acid 73.1 20 144

U Analyte was not detected. The concentration is below the reported LOD.

Sample #: L16051514-03 PrePrep Method: N/A Instrument: HP17

Client ID: GL-SD-04-052516 Prep Method: METHOD Prep Date: 06/01/2016 14:31

Matrix: Soil Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571132 Analyst: ECL Run Date: 06/02/2016 21:34

Collect Date: 05/25/2016 09:05 Dilution: 10 File ID: 17G22069.R

Sample Tag: DL01 Units: ug/kg Percent Solid: 56.2

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U 427 214

2,4-DB 94-82-6 U 427 214

2,4,5-T 93-76-5 U 42.7 21.4

2,4,5-TP (Silvex) 93-72-1 U 32.0 16.0

Dalapon 75-99-0 U 1070 534

Dicamba 1918-00-9 U 42.7 21.4

Dichloroprop 120-36-5 U 427 214

Dinoseb 88-85-7 U 214 107

MCPA 94-74-6 U 42700 21400

MCPP 93-65-2 U 42700 21400

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 55.6 25 110

U Analyte was not detected. The concentration is below the reported LOD.

Sample #: L16051514-04 PrePrep Method: N/A Instrument: HP17

Client ID: GL-SW-04-052516-DUP Prep Method: METHOD Prep Date: 06/02/2016 18:30

Matrix: Water Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571631 Analyst: ECL Run Date: 06/06/2016 18:21

Collect Date: 05/25/2016 09:00 Dilution: 1 File ID: 17G22104.R

Sample Tag: 01 Units: ug/L

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U,H1 2.04 0.510

2,4-DB 94-82-6 U,H1 2.04 0.510

2,4,5-T 93-76-5 U,H1 0.204 0.0510

2,4,5-TP (Silvex) 93-72-1 U,H1 0.204 0.0510

Dalapon 75-99-0 U,H1 5.10 1.28

Dicamba 1918-00-9 U,H1 0.204 0.102

Dichloroprop 120-36-5 1.74 J,H1 2.04 0.510

Dinoseb 88-85-7 U,H1 1.02 0.255

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Lab Report #: L16051514

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of AnalysisAnalyte CAS # Result Qual LOQ LOD

MCPA 94-74-6 U,H1 255 51.0

MCPP 93-65-2 U,H1 255 51.0

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 65.4 20 144

J,H1 Estimated value ; the analyte concentration was less than the LOQ. Sample analysis performed past holding time.

U,H1 Not detected; Sample analysis performed past holding time.

Sample #: L16051514-04 PrePrep Method: N/A Instrument: HP17

Client ID: GL-SW-04-052516-DUP Prep Method: METHOD Prep Date: 06/02/2016 18:30

Matrix: Water Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571631 Analyst: ECL Run Date: 06/06/2016 17:55

Collect Date: 05/25/2016 09:00 Dilution: 1 File ID: 17G22104.F

Sample Tag: CF01 Units: ug/L

Analyte CAS # Result Qual LOQ LOD

Dichloroprop 120-36-5 1.45 J,H1 2.04 0.510

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 88.6 20 144

J,H1 Estimated value ; the analyte concentration was less than the LOQ. Sample analysis performed past holding time.

Sample #: L16051514-05 PrePrep Method: N/A Instrument: HP17

Client ID: GL-SD-04-052516-DUP Prep Method: METHOD Prep Date: 06/01/2016 14:31

Matrix: Soil Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571132 Analyst: ECL Run Date: 06/02/2016 19:24

Collect Date: 05/25/2016 09:05 Dilution: 5 File ID: 17G22064.R

Sample Tag: DL01 Units: ug/kg Percent Solid: 60.9

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U 213 106

2,4-DB 94-82-6 U 213 106

2,4,5-T 93-76-5 U 21.3 10.6

2,4,5-TP (Silvex) 93-72-1 U 16.0 7.99

Dalapon 75-99-0 U 532 266

Dicamba 1918-00-9 U 21.3 10.6

Dichloroprop 120-36-5 U 213 106

Dinoseb 88-85-7 U 106 53.2

MCPA 94-74-6 U 21300 10600

MCPP 93-65-2 U 21300 10600

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 56.6 25 110

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Lab Report #: L16051514

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of AnalysisU Analyte was not detected. The concentration is below the reported LOD.

Sample #: L16051514-06 PrePrep Method: N/A Instrument: HP17

Client ID: GL-SW-05-052516 Prep Method: METHOD Prep Date: 06/02/2016 18:30

Matrix: Water Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571631 Analyst: ECL Run Date: 06/06/2016 18:46

Collect Date: 05/25/2016 11:00 Dilution: 1 File ID: 17G22105.R

Sample Tag: 01 Units: ug/L

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U,H1 2.06 0.515

2,4-DB 94-82-6 U,H1 2.06 0.515

2,4,5-T 93-76-5 U,H1 0.206 0.0515

2,4,5-TP (Silvex) 93-72-1 U,H1 0.206 0.0515

Dalapon 75-99-0 U,H1 5.15 1.29

Dicamba 1918-00-9 U,H1 0.206 0.103

Dichloroprop 120-36-5 U,H1 2.06 0.515

Dinoseb 88-85-7 U,H1 1.03 0.258

MCPA 94-74-6 U,H1 258 51.5

MCPP 93-65-2 U,H1 258 51.5

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 47.9 20 144

U,H1 Not detected; Sample analysis performed past holding time.

Sample #: L16051514-07 PrePrep Method: N/A Instrument: HP17

Client ID: GL-SD-05-052516 Prep Method: METHOD Prep Date: 06/01/2016 14:31

Matrix: Soil Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571132 Analyst: ECL Run Date: 06/02/2016 22:00

Collect Date: 05/25/2016 11:05 Dilution: 10 File ID: 17G22070.R

Sample Tag: DL01 Units: ug/kg Percent Solid: 45.2

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U 431 215

2,4-DB 94-82-6 U 431 215

2,4,5-T 93-76-5 U 43.1 21.5

2,4,5-TP (Silvex) 93-72-1 U 32.3 16.2

Dalapon 75-99-0 U 1080 539

Dicamba 1918-00-9 U 43.1 21.5

Dichloroprop 120-36-5 U 431 215

Dinoseb 88-85-7 U 215 108

MCPA 94-74-6 U 43100 21500

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Lab Report #: L16051514

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of AnalysisAnalyte CAS # Result Qual LOQ LOD

MCPP 93-65-2 U 43100 21500

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 69.9 25 110

U Analyte was not detected. The concentration is below the reported LOD.

Sample #: L16051514-08 PrePrep Method: N/A Instrument: HP17

Client ID: GL-SW-06-052516 Prep Method: METHOD Prep Date: 06/02/2016 18:30

Matrix: Water Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571631 Analyst: ECL Run Date: 06/06/2016 19:12

Collect Date: 05/25/2016 11:45 Dilution: 1 File ID: 17G22106.R

Sample Tag: 01 Units: ug/L

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U,H1 2.00 0.500

2,4-DB 94-82-6 U,H1 2.00 0.500

2,4,5-T 93-76-5 U,H1 0.200 0.0500

2,4,5-TP (Silvex) 93-72-1 U,H1 0.200 0.0500

Dalapon 75-99-0 U,H1 5.00 1.25

Dicamba 1918-00-9 U,H1 0.200 0.100

Dichloroprop 120-36-5 U,H1 2.00 0.500

Dinoseb 88-85-7 U,H1 1.00 0.250

MCPA 94-74-6 U,H1 250 50.0

MCPP 93-65-2 U,H1 250 50.0

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 61.4 20 144

U,H1 Not detected; Sample analysis performed past holding time.

Sample #: L16051514-09 PrePrep Method: N/A Instrument: HP17

Client ID: SL-SD-06-052516 Prep Method: METHOD Prep Date: 06/01/2016 14:31

Matrix: Soil Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571132 Analyst: ECL Run Date: 06/02/2016 19:50

Collect Date: 05/25/2016 11:50 Dilution: 5 File ID: 17G22065.R

Sample Tag: DL01 Units: ug/kg Percent Solid: 55.3

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U 195 97.7

2,4-DB 94-82-6 U 195 97.7

2,4,5-T 93-76-5 U 19.5 9.77

2,4,5-TP (Silvex) 93-72-1 U 14.7 7.33

Dalapon 75-99-0 U 488 244

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Lab Report #: L16051514

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of AnalysisAnalyte CAS # Result Qual LOQ LOD

Dicamba 1918-00-9 U 19.5 9.77

Dichloroprop 120-36-5 U 195 97.7

Dinoseb 88-85-7 U 97.7 48.8

MCPA 94-74-6 U 19500 9770

MCPP 93-65-2 U 19500 9770

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 48.2 25 110

U Analyte was not detected. The concentration is below the reported LOD.

Sample #: L16051514-10 PrePrep Method: N/A Instrument: HP17

Client ID: GL-SD-07-052516 Prep Method: METHOD Prep Date: 06/01/2016 14:31

Matrix: Soil Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571132 Analyst: ECL Run Date: 06/02/2016 20:16

Collect Date: 05/25/2016 12:15 Dilution: 5 File ID: 17G22066.R

Sample Tag: DL01 Units: ug/kg Percent Solid: 74.9

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U 236 118

2,4-DB 94-82-6 U 236 118

2,4,5-T 93-76-5 U 23.6 11.8

2,4,5-TP (Silvex) 93-72-1 U 17.7 8.85

Dalapon 75-99-0 U 590 295

Dicamba 1918-00-9 U 23.6 11.8

Dichloroprop 120-36-5 U 236 118

Dinoseb 88-85-7 U 118 59.0

MCPA 94-74-6 U 23600 11800

MCPP 93-65-2 U 23600 11800

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 47.3 25 110

U Analyte was not detected. The concentration is below the reported LOD.

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Lab Report #: L16051514

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of Analysis

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Lab Report #: L16051514

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Sample #: L16051514-03 Client ID: GL-SD-04-052516 Matrix: Soil Collect Date: 05/25/2016 09:05

Analyte Result Units Qualifier

Percent Solids 56.2 weight %

Sample #: L16051514-05 Client ID: GL-SD-04-052516-DUP Matrix: Soil Collect Date: 05/25/2016 09:05

Analyte Result Units Qualifier

Percent Solids 60.9 weight %

Sample #: L16051514-07 Client ID: GL-SD-05-052516 Matrix: Soil Collect Date: 05/25/2016 11:05

Analyte Result Units Qualifier

Percent Solids 45.2 weight %

Sample #: L16051514-09 Client ID: SL-SD-06-052516 Matrix: Soil Collect Date: 05/25/2016 11:50

Analyte Result Units Qualifier

Percent Solids 55.3 weight %

Sample #: L16051514-10 Client ID: GL-SD-07-052516 Matrix: Soil Collect Date: 05/25/2016 12:15

Analyte Result Units Qualifier

Percent Solids 74.9 weight %

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Microbac Laboratories Inc.

METHOD BLANK REPORT

Report Name:BLANK

PDF ID: 4789705

07-JUN-2016 16:48

2,4-Dichlorophenylacetic acid 44.6

Surrogates % Recovery Surrogate Limits

20 - 144

Qualifier

PASS

Analytes Concentration Dilution Qualifier

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

1

1

1

1

1

1

1

1

1

1

0.500

0.500

0.0500

0.0500

1.25

0.100

0.500

0.250

50.0

50.0

2.00

2.00

0.200

0.200

5.00

0.200

2.00

1.00

250

250

U

U

U

U

U

U

U

U

U

U

0.500

0.500

0.0500

0.0500

1.25

0.100

0.500

0.250

50.0

50.0

ND Analyte Not detected at or above reporting limit

* |Analyte concentration| > RL

17G22030.F

WG570992

Instrument ID:HP17

File ID:

Prep Date:05/31/16 18:15

Run Date:06/01/16 16:56

Analyst:ECL

Workgroup (AAB#): ug/LUnits:

8151AMethod:

WaterMatrix:

L16051514Login Number: WG570503-01Sample ID:

04-MAY-16Cal ID: HP17-Contract #:

METHODPrep Method:

LOD LOQ

LOD

LOQ

Method Detection Limit

Reporting/Practical Quantitation Limit

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Microbac Laboratories Inc.

METHOD BLANK REPORT

Report Name:BLANK

PDF ID: 4789705

07-JUN-2016 16:48

2,4-Dichlorophenylacetic acid 41.2

Surrogates % Recovery Surrogate Limits

25 - 110

Qualifier

PASS

Analytes Concentration Dilution Qualifier

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

1

1

1

1

1

1

1

1

1

1

20.0

20.0

2.00

1.50

50.0

2.00

20.0

10.0

2000

2000

40.0

40.0

4.00

3.00

100

4.00

40.0

20.0

4000

4000

U

U

U

U

U

U

U

U

U

U

20.0

20.0

2.00

1.50

50.0

2.00

20.0

10.0

2000

2000

ND Analyte Not detected at or above reporting limit

* |Analyte concentration| > RL

17G22058.R

WG571132

Instrument ID:HP17

File ID:

Prep Date:06/01/16 14:31

Run Date:06/02/16 16:49

Analyst:ECL

Workgroup (AAB#): ug/kgUnits:

8151AMethod:

SoilMatrix:

L16051514Login Number: WG570531-01Sample ID:

04-MAY-16Cal ID: HP17-Contract #:

METHODPrep Method:

LOD LOQ

LOD

LOQ

Method Detection Limit

Reporting/Practical Quantitation Limit

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Microbac Laboratories Inc.

METHOD BLANK REPORT

Report Name:BLANK

PDF ID: 4789705

07-JUN-2016 16:48

2,4-Dichlorophenylacetic acid 70.1

Surrogates % Recovery Surrogate Limits

20 - 144

Qualifier

PASS

Analytes Concentration Dilution Qualifier

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

1

1

1

1

1

1

1

1

1

1

0.500

0.500

0.0500

0.0500

1.25

0.100

0.500

0.250

50.0

50.0

2.00

2.00

0.200

0.200

5.00

0.200

2.00

1.00

250

250

U

U

U

U

U

U

U

U

U

U

0.500

0.500

0.0500

0.0500

1.25

0.100

0.500

0.250

50.0

50.0

ND Analyte Not detected at or above reporting limit

* |Analyte concentration| > RL

17G22101.F

WG571631

Instrument ID:HP17

File ID:

Prep Date:06/02/16 18:30

Run Date:06/06/16 16:37

Analyst:ECL

Workgroup (AAB#): ug/LUnits:

8151AMethod:

WaterMatrix:

L16051514Login Number: WG571137-01Sample ID:

04-MAY-16Cal ID: HP17-Contract #:

METHODPrep Method:

LOD LOQ

LOD

LOQ

Method Detection Limit

Reporting/Practical Quantitation Limit

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Microbac Laboratories Inc.

METHOD BLANK REPORT

Report Name:BLANK

PDF ID: 4789705

07-JUN-2016 16:48

2,4-Dichlorophenylacetic acid 75.5

Surrogates % Recovery Surrogate Limits

20 - 144

Qualifier

PASS

Analytes Concentration Dilution Qualifier

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

1

1

1

1

1

1

1

1

1

1

0.500

0.500

0.0500

0.0500

1.25

0.100

0.500

0.250

50.0

50.0

2.00

2.00

0.200

0.200

5.00

0.200

2.00

1.00

250

250

U

U

U

U

U

U

U

U

U

U

0.500

0.500

0.0500

0.0500

1.25

0.100

0.500

0.250

50.0

50.0

ND Analyte Not detected at or above reporting limit

* |Analyte concentration| > RL

17G22101.R

WG571631

Instrument ID:HP17

File ID:

Prep Date:06/02/16 18:30

Run Date:06/06/16 17:03

Analyst:ECL

Workgroup (AAB#): ug/LUnits:

8151AMethod:

WaterMatrix:

L16051514Login Number: WG571137-01Sample ID:

04-MAY-16Cal ID: HP17-Contract #:

METHODPrep Method:

LOD LOQ

LOD

LOQ

Method Detection Limit

Reporting/Practical Quantitation Limit

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LCS_LCS2 - Modified 03/06/2008

06/07/2016 16:48Report generated:4789613PDF File ID:

LABORATORY CONTROL SAMPLE (LCS)

Microbac Laboratories Inc.

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

LCS LCS2

12.5

11.7

14.4

12.9

5.01

11.8

8.58

15.6

11.7

10.4

2.67 3.03

2.87 3.23

0.309 0.357

0.301 0.342

3.55 3.73

0.545 0.613

2.99 3.26

1.33 1.55

254 286

268 297

Analytes %RPD

5.00 5.00

5.00 5.00

0.500 0.500

0.500 0.500

12.5 12.5

0.500 0.500

5.00 5.00

2.50 2.50

500 500

500 500

Found FoundKnown Known

53.4 60.6

57.5 64.6

61.8 71.5

60.2 68.4

28.4 29.9

109 123

59.9 65.3

53.1 62.1

50.9 57.2

53.6 59.5

% REC % REC

30

30

30

30

30

30

30

30

30

30

RPDLmt

%RecLimits

20

20

20

25

10

30

25

25

20

20

110

125

125

120

100

135

130

120

115

120

-

-

-

-

-

-

-

-

-

-

Q

Sample ID:

Sample ID:

WG570503-02

WG570503-03

LCS

LCS2

17G22031.F

17G22032.F

File ID:

File ID:

2,4-Dichlorophenylacetic acid

LCS LCS2

55.5 62.9

Surogates% Recovery % Recovery

Surrogate Limits

20 144-

Qualifier

PASS

Run Date:

Run Date:

06/01/2016 17:22

06/01/2016 17:49

WG570992

Instrument ID:HP17

Analyst:ECL

Workgroup (AAB#): ug/LUnits:

8151AMethod:WaterMatrix:

L16051514Login Number: METHODPrep Method:

* EXCEEDS %REC LIMIT

# EXCEEDS RPD LIMIT

STDQC Key: STD74844Lot #:

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LCS_LCS2 - Modified 03/06/2008

06/07/2016 16:48Report generated:4789613PDF File ID:

LABORATORY CONTROL SAMPLE (LCS)

Microbac Laboratories Inc.

2,4,5-T

2,4,5-TP (Silvex)

2,4-D

2,4-DB

Dinoseb

Dalapon

Dicamba

Dichloroprop

MCPA

MCPP

LCS LCS2

26.1

19.3

25.1

21.9

6.87

4.65

19.5

20.3

27.6

23.0

5.71 7.42

5.90 7.15

48.3 62.2

53.4 66.5

29.2 31.3

77.2 80.9

5.84 7.11

60.6 74.4

4200 5550

4990 6290

Analytes %RPD

10.0 10.0

10.0 10.0

100 100

100 100

50.0 50.0

250 250

10.0 10.0

100 100

10000 10000

10000 10000

Found FoundKnown Known

57.1 74.2

59.0 71.5

48.3 62.2

53.4 66.5

58.5 62.7

30.9 32.4

58.4 71.1

60.6 74.4

42.0 55.5

49.9 62.9

% REC % REC

30

30

30

30

30

30

30

30

30

30

RPDLmt

%RecLimits

20

20

15

20

25

10

30

20

15

15

120

120

105

125

125

105

145

130

110

110

-

-

-

-

-

-

-

-

-

-

Q

Sample ID:

Sample ID:

WG570531-02

WG570531-03

LCS

LCS2

17G22059.R

17G22060.R

File ID:

File ID:

2,4-Dichlorophenylacetic acid

LCS LCS2

50.6 60.5

Surogates% Recovery % Recovery

Surrogate Limits

25 110-

Qualifier

PASS

Run Date:

Run Date:

06/02/2016 17:15

06/02/2016 17:41

WG571132

Instrument ID:HP17

Analyst:ECL

Workgroup (AAB#): ug/kgUnits:

8151AMethod:SoilMatrix:

L16051514Login Number: METHODPrep Method:

* EXCEEDS %REC LIMIT

# EXCEEDS RPD LIMIT

STDQC Key: STD74844Lot #:

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LCS_LCS2 - Modified 03/06/2008

06/07/2016 16:48Report generated:4789613PDF File ID:

LABORATORY CONTROL SAMPLE (LCS)

Microbac Laboratories Inc.

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

LCS LCS2

9.49

12.3

14.6

17.1

18.9

6.23

10.1

0.400

11.8

12.6

3.61 3.97

3.52 3.98

0.390 0.451

0.368 0.437

4.07 3.36

0.389 0.414

3.89 4.31

1.47 1.48

342 385

358 406

Analytes %RPD

5.00 5.00

5.00 5.00

0.500 0.500

0.500 0.500

12.5 12.5

0.500 0.500

5.00 5.00

2.50 2.50

500 500

500 500

Found FoundKnown Known

72.2 79.4

70.3 79.5

78.0 90.2

73.7 87.5

32.5 26.9

77.8 82.8

77.9 86.1

58.8 59.1

68.5 77.0

71.5 81.1

% REC % REC

30

30

30

30

30

30

30

30

30

30

RPDLmt

%RecLimits

20

20

20

25

10

30

25

25

20

20

110

125

125

120

100

135

130

120

115

120

-

-

-

-

-

-

-

-

-

-

Q

Sample ID:

Sample ID:

WG571137-02

WG571137-03

LCS

LCS2

17G22102.R

17G22103.R

File ID:

File ID:

2,4-Dichlorophenylacetic acid

LCS LCS2

71.3 77.5

Surogates% Recovery % Recovery

Surrogate Limits

20 144-

Qualifier

PASS

Run Date:

Run Date:

06/06/2016 17:29

06/06/2016 17:55

WG571631

Instrument ID:HP17

Analyst:ECL

Workgroup (AAB#): ug/LUnits:

8151AMethod:WaterMatrix:

L16051514Login Number: METHODPrep Method:

* EXCEEDS %REC LIMIT

# EXCEEDS RPD LIMIT

STDQC Key: STD74844Lot #:

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LCS_LCS2 - Modified 03/06/2008

06/07/2016 16:48Report generated:4789613PDF File ID:

LABORATORY CONTROL SAMPLE (LCS)

Microbac Laboratories Inc.

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

LCS LCS2

6.74

11.0

10.0

11.4

16.4

2.58

7.67

3.60

9.55

9.97

3.40 3.63

3.77 4.20

0.439 0.485

0.402 0.451

3.73 3.16

0.570 0.585

3.67 3.96

1.50 1.45

320 352

329 363

Analytes %RPD

5.00 5.00

5.00 5.00

0.500 0.500

0.500 0.500

12.5 12.5

0.500 0.500

5.00 5.00

2.50 2.50

500 500

500 500

Found FoundKnown Known

67.9 72.6

75.3 84.1

87.8 97.0

80.4 90.1

29.8 25.3

114 117

73.4 79.2

60.1 58.0

64.0 70.4

65.8 72.7

% REC % REC

30

30

30

30

30

30

30

30

30

30

RPDLmt

%RecLimits

20

20

20

25

10

30

25

25

20

20

110

125

125

120

100

135

130

120

115

120

-

-

-

-

-

-

-

-

-

-

Q

Sample ID:

Sample ID:

WG571137-02

WG571137-03

LCS

LCS2

17G22102.F

17G22103.F

File ID:

File ID:

2,4-Dichlorophenylacetic acid

LCS LCS2

67.0 74.5

Surogates% Recovery % Recovery

Surrogate Limits

20 144-

Qualifier

PASS

Run Date:

Run Date:

06/06/2016 17:03

06/06/2016 17:29

WG571631

Instrument ID:HP17

Analyst:ECL

Workgroup (AAB#): ug/LUnits:

8151AMethod:WaterMatrix:

L16051514Login Number: METHODPrep Method:

* EXCEEDS %REC LIMIT

# EXCEEDS RPD LIMIT

STDQC Key: STD74844Lot #:

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List of Valid QualifiersJune 08, 2016

Qualkey: DOD

Microbac Laboratories Inc.

Qualifier Description

*+<>AB

B,H1B1B3B4C

CGCT1DLE

E,CT1EDL

EMPCF, S

F,CT1FL

FP1H1

H1,CT1IJJJJ

J,BJ,CT1J,H1J,H1J,PJ,SJBJQLL1L2MN

NAND

ND, BND, CT1

ND, LND, SND,H1

ND,H1,CT1NFNFLNINRNSPQ

Q,H1QNSRARES

SMISPT5TIC

TNTC

Surrogate or spike compound out of rangeCorrelation coefficient for the MSA is less than 0.995Result is less than the associated numerical value.Greater thanSee the report narrativeThe reported result is associated with a contaminated method blank.Analyte present in method blank. Sample analysis performed past holding time.Target analyte detected in method blank at or above the method reporting limitTarget analyte detected in calibration blank at or above the method reporting limitThe BOD unseeded dilution water blank exceeded 0.2 mg/LConfirmed by GC/MSConfluent growthCooler temperature at sample reciept exceeded regulatory limit.Surrogate or spike compound was diluted outEstimated concentration due to sample matrix interferenceEstimated results. The cooler temperature at receipt exceeded regulatory guidelines for requested testing.Elevated sample reporting limits, presence of non-target analytesEstimated Maximum Possible ConcentrationEstimated result below quantitation limit; method of standard additions(MSA)Estimated value; the analyte concentration was less than the RL/LOQ. The cooler temperature at receipt exceeded regulaFree LiquidDid not ignite.Sample analysis performed past holding time.Sample analysis performed past holding time. The cooler temperature at receipt exceeded regulatory guidelines for requeSemiquantitative result (out of instrument calibration range)Estimated concentration; sample matrix interference.Estimated value ; the analyte concentration was greater than the highest standardEstimated value ; the analyte concentration was less than the LOQ.The reported result is an estimated value.Analyte detected in both the method blank and sample above the MDL.Estimated value ; the analyte concentration was less than the LOQ. Cooler temperature at sample reciept exceeded reguEstimated value ; the analyte concentration was less than the LOQ. Sample analysis performed past holding time.The reported result is an estimated value. Sample was analyzed past holding time.Estimate; columns don't agree to within 40%Estimated concentration; analyzed by method of standard addition (MSA)The reported result is an estimated value. The reported result is also associated with a contaminated method blank.The reported result is an estimated value and one or more quality control criteria failed. See narrative.Sample reporting limits elevated due to matrix interferenceThe associated blank spike (LCS) recovery was above the laboratory acceptance limits.The associated blank spike (LCS) recovery was below the laboratory acceptance limits.Matrix effect; the concentration is an estimate due to matrix effect.Nontarget analyte; the analyte is a tentativlely identified compound (TIC) by GC/MSNot applicableNot detected at or above the reporting limit (RL)Not detected at or above the reporting limit (RL). Analyte present in method blank.Analyte was not detected. The concentration is below the reported LOD. The cooler temperature at receipt exceeded regNot detected; sample reporting limit (RL) elevated due to interferenceNot detected; analyzed by method of standard addition (MSA)Not detected; Sample analysis performed past holding time.Not detected; Sample analysis performed past holding time. The cooler temperature at receipt exceeded regulatory guideNot found by library searchNo free liquidNon-ignitableAnalyte is not required to be analyzedNot spikedConcentrations >40% difference between the two GC columnsOne or more quality control criteria failed. See narrative.One or more quality control criteria failed. Sample analyzed past holding time. See narrative.Quantity of sample not sufficient to perform analysisReanalysis confirms reported resultsReanalysis confirms sample matrix interferenceAnalyzed by method of standard addition (MSA)Sample matrix interference on surrogateReported results are for spike compounds onlyLaboratory not licensed for this parameterLibrary Search CompoundToo numerous to count

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List of Valid QualifiersJune 08, 2016

Qualkey: DOD

Microbac Laboratories Inc.

TNTC, BTNTC,CT1TNTC,H1

UU,CT1U,H1UJUQWX

X, SZ

Too numerous to count. Analyte present in method blank.Too numerous to count. The cooler temperature at receipt exceeded regulatory guidelines for requested testing.Too numerous to count. Sample analysis performed past holding time.Analyte was not detected. The concentration is below the reported LOD.Analyte was not detected. The concentration is below the reported LOD. Cooler temperature at sample reciept exceeded Not detected; Sample analysis performed past holding time.Undetected; the MDL and RL are estimated due to quality control discrepancies.Undetected; the analyte was analyzed for, but not detected.Post-digestion spike for furnace AA out of control limitsExceeds regulatory limitExceeds regulatory limit; method of standard additions (MSA)Cannot be resolved from isomer - see below

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Internal Chain of Custody Report

Login:

Account:

Project:

Samples:

Due Date:

L16051514

2694

2694.006

10

03-JUN-2016

A1 - Sample Archive (COLD)A2 - Sample Archive (AMBIENT)F1 - Volatiles Freezer in LoginV1 - Volatiles Refrigerator in LoginW1 - Walkin Cooler in Login

Microbac Laboratories Inc.

L16051514-01

L16051514-02

L16051514-03

L16051514-04

751451

751452

751453

751454

Samplenum

Samplenum

Samplenum

Samplenum

Container ID

Container ID

Container ID

Container ID

1

1

1

1

Bottle:

Bottle:

Bottle:

Bottle:

1

2

1

2

1

2

3

4

5

1

2

LOGIN

DISP

LOGIN

DISP

LOGIN

ANALYZ

PREP

STORE

ANALYZ*

LOGIN

DISP

COOLER

EXT

COOLER

EXT

COOLER

W1

EXT

DIG

DIG

COOLER

EXT

EXT

DISP

EXT

DISP

W1

EXT

DIG

A2

SEMI

EXT

DISP

27-MAY-2016 13:59

03-JUN-2016 14:24

27-MAY-2016 13:59

03-JUN-2016 14:24

27-MAY-2016 13:59

31-MAY-2016 08:28

31-MAY-2016 13:54

31-MAY-2016 15:32

03-JUN-2016 14:23

27-MAY-2016 13:59

03-JUN-2016 14:23

CLS

BJO

CLS

BJO

CLS

JLD

AC

BRG

ECL

CLS

BJO

BJO

BJO

CLS

AC

ERP

AC

BJO

Seq.

Seq.

Seq.

Seq.

Purpose

Purpose

Purpose

Purpose

From

From

From

From

To

To

To

To

Date/Time

Date/Time

Date/Time

Date/Time

Accept

Accept

Accept

Accept

Relinquish

Relinquish

Relinquish

Relinquish

Products

Products

Products

Products

8151

8151

8151

8151

*Sample extract/digestate/leachate

pH

pH

pH

pH

Page 218

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Internal Chain of Custody Report

Login:

Account:

Project:

Samples:

Due Date:

L16051514

2694

2694.006

10

03-JUN-2016

A1 - Sample Archive (COLD)A2 - Sample Archive (AMBIENT)F1 - Volatiles Freezer in LoginV1 - Volatiles Refrigerator in LoginW1 - Walkin Cooler in Login

Microbac Laboratories Inc.

L16051514-05

L16051514-06

L16051514-07

L16051514-08

751455

751456

751457

751458

Samplenum

Samplenum

Samplenum

Samplenum

Container ID

Container ID

Container ID

Container ID

1

1

1

1

Bottle:

Bottle:

Bottle:

Bottle:

1

2

3

4

5

1

2

1

2

3

4

5

1

2

LOGIN

ANALYZ

PREP

STORE

ANALYZ*

LOGIN

DISP

LOGIN

ANALYZ

PREP

STORE

ANALYZ*

LOGIN

DISP

COOLER

W1

EXT

DIG

DIG

COOLER

EXT

COOLER

W1

EXT

DIG

DIG

COOLER

EXT

W1

EXT

DIG

A2

SEMI

EXT

DISP

W1

EXT

DIG

A2

SEMI

EXT

DISP

27-MAY-2016 13:59

31-MAY-2016 08:28

31-MAY-2016 13:54

31-MAY-2016 15:32

03-JUN-2016 14:23

27-MAY-2016 13:59

03-JUN-2016 14:51

27-MAY-2016 13:59

31-MAY-2016 08:28

31-MAY-2016 13:54

31-MAY-2016 15:32

03-JUN-2016 14:23

27-MAY-2016 13:59

03-JUN-2016 14:51

CLS

JLD

AC

BRG

ECL

CLS

BJO

CLS

JLD

AC

BRG

ECL

CLS

BJO

CLS

AC

ERP

AC

BJO

CLS

AC

ERP

AC

BJO

Seq.

Seq.

Seq.

Seq.

Purpose

Purpose

Purpose

Purpose

From

From

From

From

To

To

To

To

Date/Time

Date/Time

Date/Time

Date/Time

Accept

Accept

Accept

Accept

Relinquish

Relinquish

Relinquish

Relinquish

Products

Products

Products

Products

8151

8151

8151

8151

*Sample extract/digestate/leachate

*Sample extract/digestate/leachate

pH

pH

pH

pH

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Internal Chain of Custody Report

Login:

Account:

Project:

Samples:

Due Date:

L16051514

2694

2694.006

10

03-JUN-2016

A1 - Sample Archive (COLD)A2 - Sample Archive (AMBIENT)F1 - Volatiles Freezer in LoginV1 - Volatiles Refrigerator in LoginW1 - Walkin Cooler in Login

Microbac Laboratories Inc.

L16051514-09

L16051514-10

751459

751460

Samplenum

Samplenum

Container ID

Container ID

1

1

Bottle:

Bottle:

1

2

1

2

LOGIN

ANALYZ

LOGIN

ANALYZ

COOLER

W1

COOLER

W1

W1

EXT

W1

EXT

27-MAY-2016 13:59

31-MAY-2016 08:28

27-MAY-2016 13:59

31-MAY-2016 08:28

CLS

JLD

CLS

JLD

CLS

CLS

Seq.

Seq.

Purpose

Purpose

From

From

To

To

Date/Time

Date/Time

Accept

Accept

Relinquish

Relinquish

Products

Products

8151

8151

pH

pH

Page 220

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Laboratory Report Number: L16051607

Eric KorthalsCT Laboratories1230 Lange CourtBaraboo, WI 53913

Please find enclosed the analytical results for the samples you submitted to Microbac Laboratories. Review and compilation of your report was completed by Microbac’s Ohio Valley Division (OVD). If you have any questions, comments, or require further assistance regarding this report, please contact your service representative listed below.

Laboratory Contact:Emily Yoak – Client Services Specialist(740) [email protected]

I certify that all test results meet all of the requirements of the accrediting authority listed below. All results for soil samples are reported on a 'dry-weight' basis unless specified otherwise. Analytical results for water and wastes are reported on a 'as received' basis unless specified otherwise. A statement of uncertainty for each analysis is available upon request. This laboratory report shall not be reproduced, except in full, without the written approval of Microbac Laboratories. The reported results are related only to the samples analyzed as received.

This report was certified on June 08 2016

David Vandenberg – Managing Director State of Origin: USAccrediting Authority: N/A ID:N/AQAPP: Microbac OVD

Microbac Laboratories * Ohio Valley Division158 Starlite Drive, Marietta, OH 45750 * T: (740) 373-4071 F: (740) 373-4835 * www.microbac.com

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Lab Report #: L16051607

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Record of Sample Receipt and InspectionComments/DiscrepanciesThis is the record of the shipment conditions and the inspection records for the samples received and reported as a sample delivery group (SDG). All of the samples were inspected and observed to conform to our receipt policies, except as noted below.

There were no discrepancies.Discrepancy Resolution

CoolersCooler # Temperature

GunTemperature COC # Airbill # Temp Required?

00113991 H 0.0 1Z1A377E4442429404 X

Inspection Checklist

# Question Result

1 Were shipping coolers sealed? Yes

2 Were custody seals intact? Yes

3 Were cooler temperatures in range of 0-6? Yes

4 Was ice present? Yes

5 Were COC's received/information complete/signed and dated? Yes

6 Were sample containers intact and match COC? Yes

7 Were sample labels intact and match COC? Yes

8 Were the correct containers and volumes received? Yes

9 Were samples received within EPA hold times? Yes

10 All samples were checked for pH and met the standard. Exceptions are noted above under discrepancy. (water only)

Yes

11 Were pH ranges acceptable? (voa's excluded) NA

12 Were VOA samples free of headspace (less than 6mm)? NA

Microbac Laboratories ● Ohio Valley Division158 Starlite Drive, Marietta, OH 45750 ● T: (740)373-4071 F: (740)373-4835

www.microbac.com

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Lab Report #: L16051607

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Samples ReceivedClient ID Laboratory ID Date Collected Date Received

728765 L16051607-01 05/25/2016 08:50 05/28/2016 11:23

Microbac Laboratories ● Ohio Valley Division158 Starlite Drive, Marietta, OH 45750 ● T: (740)373-4071 F: (740)373-4835

www.microbac.com

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Microbac LaboratoriesCase Narrative

Login Number: L16051607Department: General ChromatographyAnalyst: Eric Lawson

METHOD

Analysis SW-846 8151A

HOLDING TIMES

Sample Preparation: Sample 01 was extracted out of hold.

Sample Analysis: All holding times were met.

PREPARATION

Sample preparation proceeded normally.

CALIBRATION

Initial Calibration: For all compounds that yielded a %RSD greater than 20%, linear or higher order equations were applied. All acceptance criteria were met.

Alternate Source Standards: All acceptance criteria were met.

Continuing Calibration and Tune: All acceptance criteria were met.

BATCH QA/QC

Method Blank: All acceptance criteria were met.

Laboratory Control Sample: All acceptance criteria were met.

Matrix Spikes: There were no MS/MSD results associated with this sample delivery group, due to insufficient volume of sample. The laboratory included an LCS and LCS duplicate in the preparation batch in lieu of the NELAC prescribed MS/MSD. Microbac recommends site specific MS/MSD samples to avoid possible data qualification.

SAMPLES

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Samples: All acceptance criteria were met.

Surrogates: All acceptance criteria were met.

Manual Integration Reason Codes

Reason #1: Data System Fails to Select Correct Peak In some cases the chromatography system selects and integrates the 'wrong peak'. In this case the analyst must correct the selection and force the system to integrate the proper peak. Other times the system may miss the peakcompletely.

Reason #2: Data System Splits the Peak Incorrectly or Integrates a False Peak as a Rider Peak This phenomena is common at low concentrations where the signal:noise ratio is low. A single compound (peak) is incorrectly split into multiple peaks or integrated as a main peak with one or more rider peaks resulting in low areacounts for the target compound.

Reason #3: Improperly Integrated Isomers and/or coeluting compounds. This system often fails to distinguish coeluting compounds and or isomers. The integration areas and concentrations are wrong, and they must be corrected by manual integration. Prime examples are benzo(k)fluoranthene andbenzo(b)fluoranthene which are often unresolved and integrated improperly when both are present at low concentrations in standards or samples.

Reason #4: System Establishes Incorrect Baseline There are numerous situations in chromatography where the system establishes the baseline incorrectly. Some baseline errors will be obvious to the analyst and should be corrected via manual procedures.

Reason #5: Miscellaneous Other situations involving integration errors may require in-depth review and technical judgment. These cases should be brought to the attention of the laboratory management. If the form of manual integration is not clearly covered by these four cases, then review and approval by the Laboratory Director or the QA/QC Supervisor will be required.

I certify that this data package is in compliance with the terms and conditions agreed to by the client and Microbac Laboratories Inc., both technically and for completeness, except for the conditions noted above. Release of the data contained in this hard copy data package has been authorized by the Laboratory Manager or designated person, as verified by the following signature.

Narrative ID: 113322Approved By: Mary Schilling

Page 2 of 2 Generated at Jun 7, 2016 17:02

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Lab Report #: L16051607

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of AnalysisSample #: L16051607-01 PrePrep Method: N/A Instrument: HP17

Client ID: 728765 Prep Method: METHOD Prep Date: 06/02/2016 18:30

Matrix: Water Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571631 Analyst: ECL Run Date: 06/06/2016 19:38

Collect Date: 05/25/2016 08:50 Dilution: 1 File ID: 17G22107.R

Sample Tag: 01 Units: ug/L

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U,H1 2.04 0.510

2,4-DB 94-82-6 U,H1 2.04 0.510

2,4,5-T 93-76-5 U,H1 0.204 0.0510

2,4,5-TP (Silvex) 93-72-1 U,H1 0.204 0.0510

Dalapon 75-99-0 U,H1 5.10 1.28

Dicamba 1918-00-9 U,H1 0.204 0.102

Dichloroprop 120-36-5 U,H1 2.04 0.510

Dinoseb 88-85-7 U,H1 1.02 0.255

MCPA 94-74-6 U,H1 255 51.0

MCPP 93-65-2 U,H1 255 51.0

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 68.2 20 144

U,H1 Not detected; Sample analysis performed past holding time.

Page 1 of 1 Generated at Jun 8, 2016 08:21

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Microbac Laboratories Inc.

METHOD BLANK REPORT

Report Name:BLANK

PDF ID: 4797088

07-JUN-2016 17:01

2,4-Dichlorophenylacetic acid 75.5

Surrogates % Recovery Surrogate Limits

20 - 144

Qualifier

PASS

Analytes Concentration Dilution Qualifier

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

1

1

1

1

1

1

1

1

1

1

0.500

0.500

0.0500

0.0500

1.25

0.100

0.500

0.250

50.0

50.0

2.00

2.00

0.200

0.200

5.00

0.200

2.00

1.00

250

250

U

U

U

U

U

U

U

U

U

U

0.500

0.500

0.0500

0.0500

1.25

0.100

0.500

0.250

50.0

50.0

ND Analyte Not detected at or above reporting limit

* |Analyte concentration| > RL

17G22101.R

WG571631

Instrument ID:HP17

File ID:

Prep Date:06/02/16 18:30

Run Date:06/06/16 17:03

Analyst:ECL

Workgroup (AAB#): ug/LUnits:

8151AMethod:

WaterMatrix:

L16051607Login Number: WG571137-01Sample ID:

04-MAY-16Cal ID: HP17-Contract #:

METHODPrep Method:

LOD LOQ

LOD

LOQ

Method Detection Limit

Reporting/Practical Quantitation Limit

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LCS_LCS2 - Modified 03/06/2008

06/07/2016 17:01Report generated:4797089PDF File ID:

LABORATORY CONTROL SAMPLE (LCS)

Microbac Laboratories Inc.

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

LCS LCS2

9.49

12.3

14.6

17.1

18.9

6.23

10.1

0.400

11.8

12.6

3.61 3.97

3.52 3.98

0.390 0.451

0.368 0.437

4.07 3.36

0.389 0.414

3.89 4.31

1.47 1.48

342 385

358 406

Analytes %RPD

5.00 5.00

5.00 5.00

0.500 0.500

0.500 0.500

12.5 12.5

0.500 0.500

5.00 5.00

2.50 2.50

500 500

500 500

Found FoundKnown Known

72.2 79.4

70.3 79.5

78.0 90.2

73.7 87.5

32.5 26.9

77.8 82.8

77.9 86.1

58.8 59.1

68.5 77.0

71.5 81.1

% REC % REC

30

30

30

30

30

30

30

30

30

30

RPDLmt

%RecLimits

20

20

20

25

10

30

25

25

20

20

110

125

125

120

100

135

130

120

115

120

-

-

-

-

-

-

-

-

-

-

Q

Sample ID:

Sample ID:

WG571137-02

WG571137-03

LCS

LCS2

17G22102.R

17G22103.R

File ID:

File ID:

2,4-Dichlorophenylacetic acid

LCS LCS2

71.3 77.5

Surogates% Recovery % Recovery

Surrogate Limits

20 144-

Qualifier

PASS

Run Date:

Run Date:

06/06/2016 17:29

06/06/2016 17:55

WG571631

Instrument ID:HP17

Analyst:ECL

Workgroup (AAB#): ug/LUnits:

8151AMethod:WaterMatrix:

L16051607Login Number: METHODPrep Method:

* EXCEEDS %REC LIMIT

# EXCEEDS RPD LIMIT

STDQC Key: STD74844Lot #:

Page 34

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List of Valid QualifiersJune 08, 2016

Qualkey: DOD

Microbac Laboratories Inc.

Qualifier Description

*+<>AB

B,H1B1B3B4C

CGCT1DLE

E,CT1EDL

EMPCF, S

F,CT1FL

FP1H1

H1,CT1IJJJJ

J,BJ,CT1J,H1J,H1J,PJ,SJBJQLL1L2MN

NAND

ND, BND, CT1

ND, LND, SND,H1

ND,H1,CT1NFNFLNINRNSPQ

Q,H1QNSRARES

SMISPT5TIC

TNTC

Surrogate or spike compound out of rangeCorrelation coefficient for the MSA is less than 0.995Result is less than the associated numerical value.Greater thanSee the report narrativeThe reported result is associated with a contaminated method blank.Analyte present in method blank. Sample analysis performed past holding time.Target analyte detected in method blank at or above the method reporting limitTarget analyte detected in calibration blank at or above the method reporting limitThe BOD unseeded dilution water blank exceeded 0.2 mg/LConfirmed by GC/MSConfluent growthCooler temperature at sample reciept exceeded regulatory limit.Surrogate or spike compound was diluted outEstimated concentration due to sample matrix interferenceEstimated results. The cooler temperature at receipt exceeded regulatory guidelines for requested testing.Elevated sample reporting limits, presence of non-target analytesEstimated Maximum Possible ConcentrationEstimated result below quantitation limit; method of standard additions(MSA)Estimated value; the analyte concentration was less than the RL/LOQ. The cooler temperature at receipt exceeded regulaFree LiquidDid not ignite.Sample analysis performed past holding time.Sample analysis performed past holding time. The cooler temperature at receipt exceeded regulatory guidelines for requeSemiquantitative result (out of instrument calibration range)Estimated concentration; sample matrix interference.Estimated value ; the analyte concentration was greater than the highest standardEstimated value ; the analyte concentration was less than the LOQ.The reported result is an estimated value.Analyte detected in both the method blank and sample above the MDL.Estimated value ; the analyte concentration was less than the LOQ. Cooler temperature at sample reciept exceeded reguEstimated value ; the analyte concentration was less than the LOQ. Sample analysis performed past holding time.The reported result is an estimated value. Sample was analyzed past holding time.Estimate; columns don't agree to within 40%Estimated concentration; analyzed by method of standard addition (MSA)The reported result is an estimated value. The reported result is also associated with a contaminated method blank.The reported result is an estimated value and one or more quality control criteria failed. See narrative.Sample reporting limits elevated due to matrix interferenceThe associated blank spike (LCS) recovery was above the laboratory acceptance limits.The associated blank spike (LCS) recovery was below the laboratory acceptance limits.Matrix effect; the concentration is an estimate due to matrix effect.Nontarget analyte; the analyte is a tentativlely identified compound (TIC) by GC/MSNot applicableNot detected at or above the reporting limit (RL)Not detected at or above the reporting limit (RL). Analyte present in method blank.Analyte was not detected. The concentration is below the reported LOD. The cooler temperature at receipt exceeded regNot detected; sample reporting limit (RL) elevated due to interferenceNot detected; analyzed by method of standard addition (MSA)Not detected; Sample analysis performed past holding time.Not detected; Sample analysis performed past holding time. The cooler temperature at receipt exceeded regulatory guideNot found by library searchNo free liquidNon-ignitableAnalyte is not required to be analyzedNot spikedConcentrations >40% difference between the two GC columnsOne or more quality control criteria failed. See narrative.One or more quality control criteria failed. Sample analyzed past holding time. See narrative.Quantity of sample not sufficient to perform analysisReanalysis confirms reported resultsReanalysis confirms sample matrix interferenceAnalyzed by method of standard addition (MSA)Sample matrix interference on surrogateReported results are for spike compounds onlyLaboratory not licensed for this parameterLibrary Search CompoundToo numerous to count

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List of Valid QualifiersJune 08, 2016

Qualkey: DOD

Microbac Laboratories Inc.

TNTC, BTNTC,CT1TNTC,H1

UU,CT1U,H1UJUQWX

X, SZ

Too numerous to count. Analyte present in method blank.Too numerous to count. The cooler temperature at receipt exceeded regulatory guidelines for requested testing.Too numerous to count. Sample analysis performed past holding time.Analyte was not detected. The concentration is below the reported LOD.Analyte was not detected. The concentration is below the reported LOD. Cooler temperature at sample reciept exceeded Not detected; Sample analysis performed past holding time.Undetected; the MDL and RL are estimated due to quality control discrepancies.Undetected; the analyte was analyzed for, but not detected.Post-digestion spike for furnace AA out of control limitsExceeds regulatory limitExceeds regulatory limit; method of standard additions (MSA)Cannot be resolved from isomer - see below

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Internal Chain of Custody Report

Login:

Account:

Project:

Samples:

Due Date:

L16051607

2694

2694.006

1

06-JUN-2016

A1 - Sample Archive (COLD)A2 - Sample Archive (AMBIENT)F1 - Volatiles Freezer in LoginV1 - Volatiles Refrigerator in LoginW1 - Walkin Cooler in Login

Microbac Laboratories Inc.

L16051607-01 752286

Samplenum Container ID

1Bottle:

1

2

3

4

LOGIN

PREP

DISP

ANALYZ*

COOLER

W1

EXT

EXT

W1

EXT

DISP

SEMI

31-MAY-2016 14:37

02-JUN-2016 16:04

03-JUN-2016 14:51

07-JUN-2016 10:14

CLS

JDH

BJO

ECL

CLS

BJO

JDH

Seq. Purpose From To Date/Time Accept Relinquish

Products

8151

*Sample extract/digestate/leachate

pH

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EMSL Analytical, Inc.2001 East 52nd St., Indianapolis, IN 46205

Phone/Fax: (317) 803-2997 / (317) 803-3047

http://www.EMSL.com [email protected]

161609464

CustomerID: CTLA62

CustomerPO: 119285

ProjectID:

EMSL Order:

Attn: Brett SzymanskiCT Laboratories1230 Lange CourtBaraboo, WI 53913-3109

Received: 05/27/16 10:05 AM

GRADEL LF

Fax: (608) 356-2766

Phone: (608) 356-2760

Project:

6/6/2016Analysis Date:

5/24/2016Collected:

Sample Description Appearance % Type

AsbestosNon-Asbestos

% Fibrous % Non-Fibrous

Test Report: PLM Analysis of Bulk Samples for Asbestos via EPA 600/R-93/116 Method with CARB 435 Prep (Milling) Level A for 0.25% Target Analytical Sensitivity

GL-S-B1-01-052516161609464-0001

Brown/Gray None Detected

Fibrous

Heterogeneous

Cellulose5.00% Mica90.00%

Non-fibrous (other)5.00%

Richard Harding, Laboratory Manageror other approved signatory

Test Report PLMPTC-7.25.0 Printed: 6/6/2016 3:18:14 PM 1

Analyst(s)

THIS IS THE LAST PAGE OF THE REPORT.

This report relates only to the samples listed above and may not be reproduced except in full, without EMSL's written approval. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the federal government. EMSL is not responsible for sample collection activities or method limitations. Some samples may contain asbestos fibers below the resolution limit of PLM. EMSL recommends that samples reported as none detected or less than the limit of detection undergo additional analysis via TEM. Samples received in good condition unless otherwise noted.

Samples analyzed by EMSL Analytical, Inc. Indianapolis, IN

Ross Matlock (1)

Initial report from 06/06/2016 15:18:14119285 - Page 209 of 212

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EMSL Analytical, Inc.2001 East 52nd St., Indianapolis, IN 46205

Phone/Fax: (317) 803-2997 / (317) 803-3047

http://www.EMSL.com [email protected]

161609464

CustomerID: CTLA62

CustomerPO: 119285

ProjectID:

EMSL Order:

Attn: Brett SzymanskiCT Laboratories1230 Lange CourtBaraboo, WI 53913-3109

Received: 05/27/16 10:05 AM

GRADEL LF

Fax: (608) 356-2766

Phone: (608) 356-2760

Project:

6/10/2016Analysis Date:

5/24/2016Collected:

Sample Description Appearance % Type

AsbestosNon-Asbestos

% Fibrous % Non-Fibrous

Test Report: PLM Analysis of Bulk Samples for Asbestos via EPA 600/R-93/116 Method with CARB 435 Prep (Milling). Level B for 0.1% Target Analytical Sensitivity

GL-S-B1-01-052516161609464-0001

Tan None Detected

Non-Fibrous

Homogeneous

Cellulose25.00% Non-fibrous (other)75.00%

Richard Harding, Laboratory Manageror other approved signatory

Test Report PLMPTC-7.25.0 Printed: 6/13/2016 8:10:39 AM 1

Analyst(s)

THIS IS THE LAST PAGE OF THE REPORT.

This report relates only to the samples listed above and may not be reproduced except in full, without EMSL's written approval. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the federal government. EMSL is not responsible for sample collection activities or method limitations. Some samples may contain asbestos fibers below the resolution limit of PLM. EMSL recommends that samples reported as none detected or less then the limit of detection undergo additional analysis via TEM. Samples received in good condition unless otherwise noted.

Samples analyzed by EMSL Analytical, Inc. Indianapolis, IN

Craig Nixon (1)

Initial report from 06/13/2016 08:10:39

PDF created with pdfFactory trial version www.pdffactory.com

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OrderID: 161609464

Page 1 Of 2

119285 - Page 211 of 212

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OrderID: 161609464

Page 2 Of 2

119285 - Page 212 of 212

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CT Laboratories LLC • 1230 Lange Court • Baraboo, WI 53913 • 608-356-2760 www.ctlaboratories.com

ANALYTICAL REPORT

This report at a minimum contains the following information: • Analytical Report of Test Results • Description of QC Qualifiers • Chain of Custody (copy) • Quality Control Summary • Case Narrative (if applicable) • Correspondence with Client (if applicable) This report has been specifically prepared to satisfy project or program requirements. These results are in compliance with NELAC requirements for parameters where accreditation is required or available, unless otherwise noted in the case narrative.

119245 - Page 1 of 176

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ANALYTICAL REPORT

BRAD HARTWELL

SUITE 3700

Purchase Order #: 1111200

Project Name: GRADEL LF

Contract #: 2920

Folder #: 119245

1 S WACKER DRIVEDate Received: 05/25/2016

Arrival Temperature: 5.6Report Date: 06/15/2016

CHICAGO, IL 60606

TETRA TECH

Reprint Date:

Page 1 of 47

1230 Lange Court • Baraboo, WI 53913 • 608-356-2760

www.ctlaboratories.com

Project #:

Project Phase:

06/16/2016

CT LAB#: 727815

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1200

Analyte

Sample Description: GL-SW-01-052316

DODLOD

Client Sample #:

Inorganic Results

S.U.7.27 6/1/16 SAWpH 14:20 ^0.1 EPA 9040C0.1 1.000.10.1

Metals Results

ug/L<6.0 5/28/16 NAHTotal Aluminum 05/26/2016 11:00 00:59 ^U36 EPA 6010C18 1.00366.0ug/L<2.0 5/28/16 NAHTotal Antimony 05/26/2016 11:00 00:59 ^U12 EPA 6010C6.0 1.00122.0ug/L<4.0 5/28/16 NAHTotal Arsenic 05/26/2016 11:00 00:59 ^U24 EPA 6010C12 1.00244.0ug/L70.9 5/28/16 NAHTotal Barium 05/26/2016 11:00 00:59 ^1.8 EPA 6010C0.90 1.001.80.29ug/L<0.10 5/28/16 NAHTotal Beryllium 05/26/2016 11:00 00:59 ^U0.60 EPA 6010C0.30 1.000.600.10ug/L<0.30 5/28/16 NAHTotal Cadmium 05/26/2016 11:00 00:59 ^U2.0 EPA 6010C1.0 1.002.00.30ug/L74200 5/28/16 NAHTotal Calcium 05/26/2016 11:00 00:59 ^100 EPA 6010C50 1.0010017ug/L<0.60 5/28/16 NAHTotal Chromium 05/26/2016 11:00 00:59 ^U4.0 EPA 6010C2.0 1.004.00.60ug/L<0.70 5/28/16 NAHTotal Cobalt 05/26/2016 11:00 00:59 ^U4.0 EPA 6010C2.0 1.004.00.70ug/L<1.2 5/28/16 NAHTotal Copper 05/26/2016 11:00 00:59 ^U7.0 EPA 6010C3.5 1.007.01.2ug/L257 B 5/28/16 NAHTotal Iron 05/26/2016 11:00 00:59 ^100 EPA 6010C50 1.0010016ug/L<1.4 5/28/16 NAHTotal Lead 05/26/2016 11:00 00:59 ^U4.0 EPA 6010C2.0 1.004.01.4ug/L27600 5/28/16 NAHTotal Magnesium 05/26/2016 11:00 00:59 ^40 EPA 6010C20 1.00406.0ug/L119 5/28/16 NAHTotal Manganese 05/26/2016 11:00 00:59 ^4.0 EPA 6010C2.0 1.004.00.70

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 2 of 176

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Page 2 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727815

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1200

Analyte

Sample Description: GL-SW-01-052316

DODLOD

Client Sample #:

ug/L1.2 5/28/16 NAHTotal Nickel 05/26/2016 11:00 00:59 ^J6.0 EPA 6010C3.0 1.006.01.0ug/L<2.2 5/28/16 NAHTotal Selenium 05/26/2016 11:00 00:59 ^U13 EPA 6010C6.5 1.00132.2ug/L<0.70 5/28/16 NAHTotal Silver 05/26/2016 11:00 00:59 ^U4.0 EPA 6010C2.0 1.004.00.70ug/L<2.5 5/28/16 NAHTotal Thallium 05/26/2016 11:00 00:59 ^U15 EPA 6010C7.5 1.00152.5ug/L<0.80 5/28/16 NAHTotal Vanadium 05/26/2016 11:00 00:59 ^U5.0 EPA 6010C2.5 1.005.00.80ug/L4.3 B 5/28/16 NAHTotal Zinc 05/26/2016 11:00 00:59 ^J10 EPA 6010C5.0 1.00101.6ug/L6730 5/27/16 MDSTotal Potassium 05/26/2016 11:00 13:02 ^500 EPA 6010C250 1.0050090ug/L4690 5/27/16 MDSTotal Sodium 05/26/2016 11:00 13:02 ^600 EPA 6010C300 1.00600100ug/L<0.030 5/31/16 LJFTotal Mercury 05/27/2016 09:30 08:43 ^U0.12 EPA 7470A0.060 1.000.120.030

Organic Results

ug/L<0.21 5/31/16 AGK1,1,1-Trichloroethane 13:56 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.19 5/31/16 AGK1,1,2,2-Tetrachloroethane 13:56 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGK1,1,2-Trichloroethane 13:56 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.20 5/31/16 AGK1,1-Dichloroethane 13:56 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.24 5/31/16 AGK1,1-Dichloroethene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.30 5/31/16 AGK1,2,3-Trichlorobenzene 13:56 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.30 5/31/16 AGK1,2,4-Trichlorobenzene 13:56 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.40 5/31/16 AGK1,2-Dibromo-3-chloropropane 13:56 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.16 5/31/16 AGK1,2-Dibromoethane 13:56 ^U0.50 EPA 8260C0.25 1.000.500.16ug/L<0.23 5/31/16 AGK1,2-Dichlorobenzene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.30 5/31/16 AGK1,2-Dichloroethane 13:56 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGK1,2-Dichloropropane 13:56 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.26 5/31/16 AGK1,3-Dichlorobenzene 13:56 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.21 5/31/16 AGK1,4-Dichloro-2-butene 13:56U0.50 EPA 8260C0.25 1.000.500.21ug/L<5.0 Z,Q 5/31/16 AGK1,4-Dioxane 13:56U25 EPA 8260C13 1.00255.0ug/L<0.50 5/31/16 AGK112Trichloro122trifluoroethane 13:56U1.0 EPA 8260C0.50 1.001.00.50ug/L<2.4 5/31/16 AGK2-Butanone 13:56 ^U5.0 EPA 8260C2.5 1.005.02.4

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 3 of 176

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Page 3 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727815

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1200

Analyte

Sample Description: GL-SW-01-052316

DODLOD

Client Sample #:

ug/L<4.0 5/31/16 AGK2-Hexanone 13:56 ^U10 EPA 8260C5.0 1.00104.0ug/L<3.0 5/31/16 AGK4-Methyl-2-pentanone 13:56 ^U10 EPA 8260C5.0 1.00103.0ug/L<5.0 5/31/16 AGKAcetone 13:56 ^U10 EPA 8260C5.0 1.00105.0ug/L<0.19 5/31/16 AGKBenzene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.19 5/31/16 AGKBromochloromethane 13:56 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.20 5/31/16 AGKBromodichloromethane 13:56 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.22 5/31/16 AGKBromoform 13:56 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.50 5/31/16 AGKBromomethane 13:56 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.50 5/31/16 AGKCarbon disulfide 13:56 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.23 5/31/16 AGKCarbon tetrachloride 13:56 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.24 5/31/16 AGKChlorobenzene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.40 5/31/16 AGKChloroethane 13:56 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.15 5/31/16 AGKChloroform 13:56 ^U0.50 EPA 8260C0.25 1.000.500.15ug/L<0.40 5/31/16 AGKChloromethane 13:56 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.25 5/31/16 AGKcis-1,2-Dichloroethene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKcis-1,3-Dichloropropene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.28 5/31/16 AGKCyclohexane 13:56U1.0 EPA 8260C0.50 1.001.00.28ug/L<0.19 5/31/16 AGKDibromochloromethane 13:56 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGKDichlorodifluoromethane 13:56 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.22 5/31/16 AGKEthylbenzene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.18 5/31/16 AGKIsopropylbenzene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.18ug/L<0.50 5/31/16 AGKm & p-Xylene 13:56 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.30 5/31/16 AGKMethyl acetate 13:56U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.29 5/31/16 AGKMethyl tert-butyl ether 13:56 ^U1.0 EPA 8260C0.50 1.001.00.29ug/L<0.23 5/31/16 AGKMethylcyclohexane 13:56U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.40 5/31/16 AGKMethylene chloride 13:56 ^U2.0 EPA 8260C0.50 1.002.00.40ug/L<0.24 5/31/16 AGKo-Xylene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.20 5/31/16 AGKStyrene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.20

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 4 of 176

Page 313: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 4 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727815

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1200

Analyte

Sample Description: GL-SW-01-052316

DODLOD

Client Sample #:

ug/L<0.30 5/31/16 AGKTetrachloroethene 13:56 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGKToluene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.25 5/31/16 AGKtrans-1,2-Dichloroethene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKtrans-1,3-Dichloropropene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.21 5/31/16 AGKTrichloroethene 13:56 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.20 5/31/16 AGKTrichlorofluoromethane 13:56 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.18 5/31/16 AGKVinyl chloride 13:56 ^U0.50 EPA 8260C0.25 1.000.500.18% Recovery93 5/31/16 AGK1,2 Dichloroethane-d4 13:56 EPA 8260C1.0012070% Recovery97 5/31/16 AGKBromofluorobenzene 13:56 EPA 8260C1.0012075% Recovery103 5/31/16 AGKd8-Toluene 13:56 EPA 8260C1.0012085% Recovery101 5/31/16 AGKDibromofluoromethane 13:56 EPA 8260C1.0011585ug/L<0.0067 6/7/16 JJY4,4'-DDD 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0067ug/L<0.0067 6/7/16 JJY4,4'-DDE 05/27/2016 11:00 00:04 ^U0.044 EPA 8081B0.011 1.000.0440.0067ug/L<0.0078 6/7/16 JJY4,4'-DDT 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0078ug/L<0.0067 6/7/16 JJYAldrin 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0067ug/L<0.0056 6/7/16 JJYalpha-BHC 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0056ug/L<0.010 6/7/16 JJYalpha-Chlordane 05/27/2016 11:00 00:04 ^U0.044 EPA 8081B0.011 1.000.0440.010ug/L<0.010 6/7/16 JJYbeta-BHC 05/27/2016 11:00 00:04 ^U0.044 EPA 8081B0.011 1.000.0440.010ug/L<0.11 6/7/16 JJYChlordane (Technical) 05/27/2016 11:00 00:04 ^U0.67 EPA 8081B0.22 1.000.670.11ug/L0.0089 P 6/7/16 JJYdelta-BHC 05/27/2016 11:00 00:04 ^J0.027 EPA 8081B0.011 1.000.0270.0056ug/L<0.0067 6/7/16 JJYDieldrin 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0067ug/L<0.010 Q 6/7/16 JJYEndosulfan I 05/27/2016 11:00 00:04 ^U0.044 EPA 8081B0.011 1.000.0440.010ug/L<0.0078 6/7/16 JJYEndosulfan II 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0078ug/L<0.0067 6/7/16 JJYEndosulfan sulfate 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0067ug/L<0.0067 6/7/16 JJYEndrin 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0067ug/L<0.010 6/7/16 JJYEndrin aldehyde 05/27/2016 11:00 00:04 ^U0.044 EPA 8081B0.011 1.000.0440.010ug/L<0.0078 6/7/16 JJYEndrin ketone 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0078ug/L<0.0078 6/7/16 JJYgamma-Chlordane 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0078

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 5 of 176

Page 314: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 5 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727815

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1200

Analyte

Sample Description: GL-SW-01-052316

DODLOD

Client Sample #:

ug/L<0.0067 6/7/16 JJYHeptachlor 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0067ug/L<0.0078 6/7/16 JJYHeptachlor epoxide 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0078ug/L<0.0078 6/7/16 JJYLindane 05/27/2016 11:00 00:04 ^U0.027 EPA 8081B0.011 1.000.0270.0078ug/L<0.0067 6/7/16 JJYMethoxychlor 05/27/2016 11:00 00:04 ^U0.044 EPA 8081B0.011 1.000.0440.0067ug/L<0.20 6/7/16 JJYToxaphene 05/27/2016 11:00 00:04 ^U0.67 EPA 8081B0.22 1.000.670.20% Recovery58 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 11:00 00:04 EPA 8081B1.0014025% Recovery69 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 11:00 00:04 EPA 8081B1.0013530ug/L<0.16 6/1/16 RPN1,1'-Biphenyl 05/27/2016 15:00 17:10U1.0 EPA 8270D0.42 1.001.00.16ug/L<0.18 6/1/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 15:00 17:10U1.0 EPA 8270D0.42 1.001.00.18ug/L<1.1 6/1/16 RPN2,4,5-Trichlorophenol 05/27/2016 15:00 17:10 ^U5.2 EPA 8270D2.1 1.005.21.1ug/L<1.0 6/1/16 RPN2,4,6-Trichlorophenol 05/27/2016 15:00 17:10 ^U5.2 EPA 8270D2.1 1.005.21.0ug/L<1.0 6/1/16 RPN2,4-Dichlorophenol 05/27/2016 15:00 17:10 ^U5.2 EPA 8270D2.1 1.005.21.0ug/L<0.85 6/1/16 RPN2,4-Dimethylphenol 05/27/2016 15:00 17:10 ^U5.2 EPA 8270D2.1 1.005.20.85ug/L<1.6 6/1/16 RPN2,4-Dinitrophenol 05/27/2016 15:00 17:10 ^U10 EPA 8270D5.2 1.00101.6ug/L<0.22 6/1/16 RPN2,4-Dinitrotoluene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L<0.29 6/1/16 RPN2,6-Dinitrotoluene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.29ug/L<0.19 6/1/16 RPN2-Chloronaphthalene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.91 6/1/16 RPN2-Chlorophenol 05/27/2016 15:00 17:10 ^U5.2 EPA 8270D2.1 1.005.20.91ug/L<0.18 6/1/16 RPN2-Methylnaphthalene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.90 6/1/16 RPN2-Methylphenol 05/27/2016 15:00 17:10 ^U5.2 EPA 8270D2.1 1.005.20.90ug/L<0.23 6/1/16 RPN2-Nitroaniline 05/27/2016 15:00 17:10 ^U2.1 EPA 8270D0.42 1.002.10.23ug/L<0.94 6/1/16 RPN2-Nitrophenol 05/27/2016 15:00 17:10 ^U5.2 EPA 8270D2.1 1.005.20.94ug/L<1.5 6/1/16 RPN3 & 4-Methylphenol 05/27/2016 15:00 17:10 ^U9.4 EPA 8270D3.8 1.009.41.5ug/L<0.69 6/1/16 RPN3,3'-Dichlorobenzidine 05/27/2016 15:00 17:10 ^U2.6 EPA 8270D1.0 1.002.60.69ug/L<0.27 6/1/16 RPN3-Nitroaniline 05/27/2016 15:00 17:10 ^U2.1 EPA 8270D1.0 1.002.10.27ug/L<1.7 6/1/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 15:00 17:10 ^U10 EPA 8270D2.1 1.00101.7ug/L<0.21 6/1/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 15:00 17:10 ^U2.1 EPA 8270D0.42 1.002.10.21ug/L<0.83 6/1/16 RPN4-Chloro-3-methylphenol 05/27/2016 15:00 17:10 ^U5.2 EPA 8270D2.1 1.005.20.83

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 6 of 176

Page 315: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 6 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727815

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1200

Analyte

Sample Description: GL-SW-01-052316

DODLOD

Client Sample #:

ug/L<0.13 6/1/16 RPN4-Chloroaniline 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.13ug/L<0.19 6/1/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.16 6/1/16 RPN4-Nitroaniline 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.16ug/L<1.1 6/1/16 RPN4-Nitrophenol 05/27/2016 15:00 17:10 ^U10 EPA 8270D5.2 1.00101.1ug/L<0.19 6/1/16 RPNAcenaphthene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.18 6/1/16 RPNAcenaphthylene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.28 6/1/16 RPNAcetophenone 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.28ug/L<0.11 6/1/16 RPNAnthracene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.11ug/L<0.27 6/1/16 RPNAtrazine 05/27/2016 15:00 17:10U1.0 EPA 8270D0.42 1.001.00.27ug/L<0.26 6/1/16 RPNBenzaldehyde 05/27/2016 15:00 17:10U1.0 EPA 8270D0.42 1.001.00.26ug/L<0.13 6/1/16 RPNBenzo(a)anthracene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.13ug/L<0.15 6/1/16 RPNBenzo(a)pyrene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.15ug/L<0.18 6/1/16 RPNBenzo(b)fluoranthene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.22 6/1/16 RPNBenzo(g,h,i)perylene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L<0.21 6/1/16 RPNBenzo(k)fluoranthene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.21ug/L<0.20 6/1/16 RPNBis(2-chloroethoxy)methane 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.20ug/L<0.22 6/1/16 RPNBis(2-chloroethyl)ether 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.22ug/L<0.23 6/1/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.23ug/L<0.46 6/1/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 15:00 17:10 ^U2.1 EPA 8270D1.0 1.002.10.46ug/L<0.49 6/1/16 RPNButylbenzylphthalate 05/27/2016 15:00 17:10 ^U2.1 EPA 8270D1.0 1.002.10.49ug/L<0.20 6/1/16 RPNCaprolactam 05/27/2016 15:00 17:10U2.1 EPA 8270D1.0 1.002.10.20ug/L<0.13 6/1/16 RPNCarbazole 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.13ug/L<0.17 6/1/16 RPNChrysene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.17ug/L<0.70 6/1/16 RPNDi-n-butylphthalate 05/27/2016 15:00 17:10 ^U4.2 EPA 8270D2.1 1.004.20.70ug/L<0.51 6/1/16 RPNDi-n-octylphthalate 05/27/2016 15:00 17:10 ^U2.1 EPA 8270D1.0 1.002.10.51ug/L<0.18 6/1/16 RPNDibenzo(a,h)anthracene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.18ug/L<0.20 6/1/16 RPNDibenzofuran 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.20ug/L<0.47 6/1/16 RPNDiethylphthalate 05/27/2016 15:00 17:10 ^U2.1 EPA 8270D1.0 1.002.10.47

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 7 of 176

Page 316: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 7 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727815

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1200

Analyte

Sample Description: GL-SW-01-052316

DODLOD

Client Sample #:

ug/L<0.56 6/1/16 RPNDimethylphthalate 05/27/2016 15:00 17:10 ^U2.1 EPA 8270D1.0 1.002.10.56ug/L<0.14 6/1/16 RPNFluoranthene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.14ug/L<0.20 6/1/16 RPNFluorene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.20ug/L<0.28 6/1/16 RPNHexachlorobenzene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.28ug/L<0.19 6/1/16 RPNHexachlorobutadiene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.27 6/1/16 RPNHexachlorocyclopentadiene 05/27/2016 15:00 17:10 ^U2.1 EPA 8270D1.0 1.002.10.27ug/L<0.23 6/1/16 RPNHexachloroethane 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.23ug/L<0.19 6/1/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.19 6/1/16 RPNIsophorone 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.19 6/1/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.38 6/1/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 15:00 17:10 ^U2.1 EPA 8270D0.83 1.002.10.38ug/L<0.19 6/1/16 RPNNaphthalene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.19ug/L<0.17 6/1/16 RPNNitrobenzene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.17ug/L<1.1 6/1/16 RPNPentachlorophenol 05/27/2016 15:00 17:10 ^U5.2 EPA 8270D2.1 1.005.21.1ug/L<0.31 6/1/16 RPNPhenanthrene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.31ug/L<0.50 6/1/16 RPNPhenol 05/27/2016 15:00 17:10 ^U5.2 EPA 8270D2.1 1.005.20.50ug/L<0.14 6/1/16 RPNPyrene 05/27/2016 15:00 17:10 ^U1.0 EPA 8270D0.42 1.001.00.14% Recovery76 6/1/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 15:00 17:10 ^EPA 8270D1.0012540% Recovery63 6/1/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 15:00 17:10 ^EPA 8270D1.0011050% Recovery39 6/1/16 RPNSurr: 2-Fluorophenol 05/27/2016 15:00 17:10 ^EPA 8270D1.0011020% Recovery66 6/1/16 RPNSurr: Nitrobenzene-d5 05/27/2016 15:00 17:10 ^EPA 8270D1.0011040% Recovery25 6/1/16 RPNSurr: Phenol-d5 05/27/2016 15:00 17:10 ^EPA 8270D1.0011510% Recovery75 6/1/16 RPNSurr: Terphenyl-d14 05/27/2016 15:00 17:10 ^EPA 8270D1.0013550ug/L<0.13 6/2/16 JJYAroclor-1016 05/27/2016 11:00 15:08U1.1 EPA 8082A0.33 1.001.10.13ug/L<0.094 6/2/16 JJYAroclor-1221 05/27/2016 11:00 15:08U1.1 EPA 8082A0.33 1.001.10.094ug/L<0.16 6/2/16 JJYAroclor-1232 05/27/2016 11:00 15:08U1.1 EPA 8082A0.33 1.001.10.16ug/L<0.11 6/2/16 JJYAroclor-1242 05/27/2016 11:00 15:08U1.1 EPA 8082A0.33 1.001.10.11ug/L<0.098 6/2/16 JJYAroclor-1248 05/27/2016 11:00 15:08U1.1 EPA 8082A0.33 1.001.10.098

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 8 of 176

Page 317: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 8 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727815

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1200

Analyte

Sample Description: GL-SW-01-052316

DODLOD

Client Sample #:

ug/L<0.10 6/2/16 JJYAroclor-1254 05/27/2016 11:00 15:08U1.1 EPA 8082A0.33 1.001.10.10ug/L<0.11 6/2/16 JJYAroclor-1260 05/27/2016 11:00 15:08U1.1 EPA 8082A0.33 1.001.10.11ug/L<0.31 6/2/16 JJYAroclor-1262 05/27/2016 11:00 15:08U1.1 EPA 8082A0.33 1.001.10.31ug/L<0.062 6/2/16 JJYAroclor-1268 05/27/2016 11:00 15:08U1.1 EPA 8082A0.33 1.001.10.062% Recovery64 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 11:00 15:08 EPA 8082A1.0013738% Recovery74 6/2/16 JJYSurr: DCBP 05/27/2016 11:00 15:08 EPA 8082A1.0014723

Sub Lab Results

ATTACHED 6/15/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 727909

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1205

Analyte

Sample Description: GL-SD-01-052316

DODLOD

Client Sample #:

Inorganic Results

%55.5 5/26/16 ABSSolids, Percent 10:220.1 EPA 8000C0.1 1.000.10.1mg/kg28800 6/1/16 JJFTotal Organic Carbon 11:37 ^3200 L-Kahn/9060A1600 1.003200540

Metals Results

mg/kg8820 5/27/16 NAHAluminum 05/26/2016 07:00 20:07 ^0.45 EPA 6010C0.22 1.000.450.074mg/kg<0.24 5/27/16 NAHAntimony 05/26/2016 07:00 20:07 ^U1.5 EPA 6010C0.74 1.001.50.24mg/kg6.6 5/27/16 NAHArsenic 05/26/2016 07:00 20:07 ^1.5 EPA 6010C0.74 1.001.50.24mg/kg74.3 5/27/16 NAHBarium 05/26/2016 07:00 20:07 ^0.093 EPA 6010C0.046 1.000.0930.017mg/kg0.20 5/27/16 NAHBeryllium 05/26/2016 07:00 20:07 ^0.074 EPA 6010C0.022 1.000.0740.0074mg/kg0.52 5/27/16 NAHCadmium 05/26/2016 07:00 20:07 ^0.074 EPA 6010C0.037 1.000.0740.011mg/kg80800 6/2/16 NAHCalcium 05/26/2016 07:00 19:15 ^26 EPA 6010C13 10.00264.5mg/kg15.5 5/27/16 NAHChromium 05/26/2016 07:00 20:07 ^0.26 EPA 6010C0.13 1.000.260.043

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 9 of 176

Page 318: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 9 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727909

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1205

Analyte

Sample Description: GL-SD-01-052316

DODLOD

Client Sample #:

mg/kg8.9 5/27/16 NAHCobalt 05/26/2016 07:00 20:07 ^0.45 EPA 6010C0.22 1.000.450.074mg/kg24.9 5/27/16 NAHCopper 05/26/2016 07:00 20:07 ^0.74 EPA 6010C0.37 1.000.740.13mg/kg16800 5/27/16 NAHIron 05/26/2016 07:00 20:07 ^3.3 EPA 6010C1.7 1.003.30.56mg/kg34.0 5/27/16 NAHLead 05/26/2016 07:00 20:07 ^0.46 EPA 6010C0.23 1.000.460.074mg/kg16900 5/27/16 NAHMagnesium 05/26/2016 07:00 20:07 ^1.5 EPA 6010C0.74 1.001.50.26mg/kg404 5/27/16 NAHManganese 05/26/2016 07:00 20:07 ^0.28 EPA 6010C0.14 1.000.280.046mg/kg25.2 5/27/16 NAHNickel 05/26/2016 07:00 20:07 ^0.22 EPA 6010C0.11 1.000.220.039mg/kg0.34 5/27/16 NAHSelenium 05/26/2016 07:00 20:07 ^J0.74 EPA 6010C0.37 1.000.740.11mg/kg<0.032 5/27/16 NAHSilver 05/26/2016 07:00 20:07 ^U0.19 EPA 6010C0.093 1.000.190.032mg/kg<0.15 5/27/16 NAHThallium 05/26/2016 07:00 20:07 ^U0.89 EPA 6010C0.45 1.000.890.15mg/kg20.1 5/27/16 NAHVanadium 05/26/2016 07:00 20:07 ^0.15 EPA 6010C0.074 1.000.150.022mg/kg100 5/27/16 NAHZinc 05/26/2016 07:00 20:07 ^0.56 EPA 6010C0.28 1.000.560.093mg/kg1320 5/27/16 MDSPotassium 05/26/2016 07:00 07:52 ^120 EPA 6010C61 1.0012020mg/kg130 5/27/16 MDSSodium 05/26/2016 07:00 07:52 ^45 EPA 6010C22 1.00457.4mg/kg0.045 5/31/16 LJFMercury 05/27/2016 12:00 14:40 ^0.016 EPA 7471B0.0081 1.000.0160.0041

Organic Results

ug/kg<7.1 5/29/16 RLD1,1,1-Trichloroethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00357.1ug/kg<4.3 5/29/16 RLD1,1,2,2-Tetrachloroethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00354.3ug/kg<5.7 5/29/16 RLD1,1,2-Trichloroethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.7ug/kg<7.8 5/29/16 RLD1,1-Dichloroethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00357.8ug/kg<11 5/29/16 RLD1,1-Dichloroethene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.003511ug/kg<5.7 5/29/16 RLD1,2,3-Trichlorobenzene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.7ug/kg<6.4 5/29/16 RLD1,2,4-Trichlorobenzene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00356.4ug/kg<8.5 5/29/16 RLD1,2-Dibromo-3-chloropropane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00358.5ug/kg<7.1 5/29/16 RLD1,2-Dibromoethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00357.1ug/kg<6.4 5/29/16 RLD1,2-Dichlorobenzene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00356.4ug/kg<8.5 5/29/16 RLD1,2-Dichloroethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00358.5

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 10 of 176

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Page 10 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727909

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1205

Analyte

Sample Description: GL-SD-01-052316

DODLOD

Client Sample #:

ug/kg<5.0 5/29/16 RLD1,2-Dichloropropane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.0ug/kg<5.7 5/29/16 RLD1,3-Dichlorobenzene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.7ug/kg<6.4 5/29/16 RLD1,4-Dichloro-2-butene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00356.4ug/kg<280 5/29/16 RLD1,4-Dioxane 05/25/2016 16:20 11:50 ^U3500 EPA 8260C710 1.003500280ug/kg<14 5/29/16 RLD112Trichloro122trifluoroethane 05/25/2016 16:20 11:50 ^U71 EPA 8260C28 1.007114ug/kg<71 5/29/16 RLD2-Butanone 05/25/2016 16:20 11:50 ^U350 EPA 8260C140 1.0035071ug/kg<48 5/29/16 RLD2-Hexanone 05/25/2016 16:20 11:50 ^U350 EPA 8260C140 1.0035048ug/kg<58 5/29/16 RLD4-Methyl-2-pentanone 05/25/2016 16:20 11:50 ^U350 EPA 8260C140 1.0035058ug/kg56.1 5/29/16 RLDAcetone 05/25/2016 16:20 11:50 ^J350 EPA 8260C140 1.0035045ug/kg<3.5 5/29/16 RLDBenzene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00353.5ug/kg<5.7 5/29/16 RLDBromochloromethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.7ug/kg<6.4 5/29/16 RLDBromodichloromethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00356.4ug/kg<4.3 5/29/16 RLDBromoform 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00354.3ug/kg<21 5/29/16 RLDBromomethane 05/25/2016 16:20 11:50 ^U71 EPA 8260C35 1.007121ug/kg<11 5/29/16 RLDCarbon disulfide 05/25/2016 16:20 11:50 ^U71 EPA 8260C28 1.007111ug/kg<7.8 5/29/16 RLDCarbon tetrachloride 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00357.8ug/kg<5.7 5/29/16 RLDChlorobenzene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.7ug/kg<13 5/29/16 RLDChloroethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.003513ug/kg<6.4 5/29/16 RLDChloroform 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00356.4ug/kg<18 5/29/16 RLDChloromethane 05/25/2016 16:20 11:50 ^U71 EPA 8260C35 1.007118ug/kg<7.1 5/29/16 RLDcis-1,2-Dichloroethene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00357.1ug/kg<7.1 5/29/16 RLDcis-1,3-Dichloropropene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00357.1ug/kg<8.5 5/29/16 RLDCyclohexane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00358.5ug/kg<5.7 5/29/16 RLDDibromochloromethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.7ug/kg<9.2 5/29/16 RLDDichlorodifluoromethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00359.2ug/kg<5.7 5/29/16 RLDEthylbenzene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.7ug/kg<5.7 5/29/16 RLDIsopropylbenzene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.7ug/kg<13 5/29/16 RLDm & p-Xylene 05/25/2016 16:20 11:50 ^U71 EPA 8260C28 1.007113

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 11 of 176

Page 320: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 11 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727909

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1205

Analyte

Sample Description: GL-SD-01-052316

DODLOD

Client Sample #:

ug/kg194 5/29/16 RLDMethyl acetate 05/25/2016 16:20 11:50 ^35 EPA 8260C14 1.00358.5ug/kg<20 5/29/16 RLDMethyl tert-butyl ether 05/25/2016 16:20 11:50 ^U71 EPA 8260C35 1.007120ug/kg<6.4 5/29/16 RLDMethylcyclohexane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00356.4ug/kg<28 5/29/16 RLDMethylene chloride 05/25/2016 16:20 11:50 ^U71 EPA 8260C35 1.007128ug/kg<5.7 5/29/16 RLDo-Xylene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.7ug/kg<4.3 5/29/16 RLDStyrene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00354.3ug/kg<5.7 5/29/16 RLDTetrachloroethene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.7ug/kg<5.0 5/29/16 RLDToluene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.0ug/kg<7.8 5/29/16 RLDtrans-1,2-Dichloroethene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00357.8ug/kg<5.0 5/29/16 RLDtrans-1,3-Dichloropropene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00355.0ug/kg<7.1 5/29/16 RLDTrichloroethene 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00357.1ug/kg<9.2 5/29/16 RLDTrichlorofluoromethane 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00359.2ug/kg<9.9 5/29/16 RLDVinyl chloride 05/25/2016 16:20 11:50 ^U35 EPA 8260C14 1.00359.9% Recovery104 5/29/16 RLD1,2 Dichloroethane-d4 05/25/2016 16:20 11:50 EPA 8260C1.0011780% Recovery101 5/29/16 RLDBromofluorobenzene 05/25/2016 16:20 11:50 EPA 8260C1.0012085% Recovery102 5/29/16 RLDd8-Toluene 05/25/2016 16:20 11:50 EPA 8260C1.0011585% Recovery102 5/29/16 RLDDibromofluoromethane 05/25/2016 16:20 11:50 EPA 8260C1.0011879ug/kg14.9 P 6/7/16 JJY4,4'-DDD 05/27/2016 14:00 15:34 ^3.6 EPA 8081B1.8 1.003.60.54ug/kg7.51 P 6/7/16 JJY4,4'-DDE 05/27/2016 14:00 15:34 ^3.6 EPA 8081B1.8 1.003.60.54ug/kg7.87 P 6/7/16 JJY4,4'-DDT 05/27/2016 14:00 15:34 ^3.6 EPA 8081B1.8 1.003.60.89ug/kg<0.89 6/7/16 JJYAldrin 05/27/2016 14:00 15:34 ^U3.6 EPA 8081B1.8 1.003.60.89ug/kg30.6 P 6/7/16 JJYalpha-BHC 05/27/2016 14:00 15:34 ^7.2 EPA 8081B3.6 1.007.21.1ug/kg<0.54 Q 6/7/16 JJYalpha-Chlordane 05/27/2016 14:00 15:34 ^U3.6 EPA 8081B1.8 1.003.60.54ug/kg<1.1 6/7/16 JJYbeta-BHC 05/27/2016 14:00 15:34 ^U7.2 EPA 8081B3.6 1.007.21.1ug/kg<8.9 6/7/16 JJYChlordane (Technical) 05/27/2016 14:00 15:34 ^U72 EPA 8081B36 1.00728.9ug/kg5.90 P 6/7/16 JJYdelta-BHC 05/27/2016 14:00 15:34 ^3.6 EPA 8081B1.8 1.003.60.54ug/kg2.33 P 6/7/16 JJYDieldrin 05/27/2016 14:00 15:34 ^J3.6 EPA 8081B1.8 1.003.60.54ug/kg<1.3 6/7/16 JJYEndosulfan I 05/27/2016 14:00 15:34 ^U7.2 EPA 8081B3.6 1.007.21.3

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 12 of 176

Page 321: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 12 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727909

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1205

Analyte

Sample Description: GL-SD-01-052316

DODLOD

Client Sample #:

ug/kg<0.54 6/7/16 JJYEndosulfan II 05/27/2016 14:00 15:34 ^U3.6 EPA 8081B1.8 1.003.60.54ug/kg<1.6 6/7/16 JJYEndosulfan sulfate 05/27/2016 14:00 15:34 ^U7.2 EPA 8081B3.6 1.007.21.6ug/kg<0.72 6/7/16 JJYEndrin 05/27/2016 14:00 15:34 ^U3.6 EPA 8081B1.8 1.003.60.72ug/kg<2.0 6/7/16 JJYEndrin aldehyde 05/27/2016 14:00 15:34 ^U7.2 EPA 8081B3.6 1.007.22.0ug/kg<1.4 6/7/16 JJYEndrin ketone 05/27/2016 14:00 15:34 ^U7.2 EPA 8081B3.6 1.007.21.4ug/kg<0.54 6/7/16 JJYgamma-Chlordane 05/27/2016 14:00 15:34 ^U3.6 EPA 8081B1.8 1.003.60.54ug/kg5.55 P 6/7/16 JJYHeptachlor 05/27/2016 14:00 15:34 ^3.6 EPA 8081B1.8 1.003.60.72ug/kg<0.89 6/7/16 JJYHeptachlor epoxide 05/27/2016 14:00 15:34 ^U3.6 EPA 8081B1.8 1.003.60.89ug/kg2.15 6/7/16 JJYLindane 05/27/2016 14:00 15:34 ^J3.6 EPA 8081B1.8 1.003.60.89ug/kg<1.3 6/7/16 JJYMethoxychlor 05/27/2016 14:00 15:34 ^U7.2 EPA 8081B3.6 1.007.21.3ug/kg<16 6/7/16 JJYToxaphene 05/27/2016 14:00 15:34 ^U72 EPA 8081B36 1.007216% Recovery94 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 14:00 15:34 EPA 8081B1.0012570% Recovery56 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 14:00 15:34 EPA 8081B1.0013055ug/kg<25 6/2/16 RPN1,1'-Biphenyl 05/27/2016 14:00 18:05U220 EPA 8270D110 1.0022025ug/kg<40 6/2/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 14:00 18:05U220 EPA 8270D110 1.0022040ug/kg<230 6/2/16 RPN2,4,5-Trichlorophenol 05/27/2016 14:00 18:05 ^U1100 EPA 8270D540 1.001100230ug/kg<230 6/2/16 RPN2,4,6-Trichlorophenol 05/27/2016 14:00 18:05 ^U1100 EPA 8270D540 1.001100230ug/kg<220 6/2/16 RPN2,4-Dichlorophenol 05/27/2016 14:00 18:05 ^U1100 EPA 8270D540 1.001100220ug/kg<180 6/2/16 RPN2,4-Dimethylphenol 05/27/2016 14:00 18:05 ^U1100 EPA 8270D540 1.001100180ug/kg<490 6/2/16 RPN2,4-Dinitrophenol 05/27/2016 14:00 18:05 ^U1800 EPA 8270D1100 1.001800490ug/kg<43 6/2/16 RPN2,4-Dinitrotoluene 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022043ug/kg<43 6/2/16 RPN2,6-Dinitrotoluene 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022043ug/kg<41 6/2/16 RPN2-Chloronaphthalene 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022041ug/kg<610 6/2/16 RPN2-Chlorophenol 05/27/2016 14:00 18:05 ^U3600 EPA 8270D1100 1.003600610ug/kg52.1 6/2/16 RPN2-Methylnaphthalene 05/27/2016 14:00 18:05 ^J220 EPA 8270D110 1.0022045ug/kg<750 6/2/16 RPN2-Methylphenol 05/27/2016 14:00 18:05 ^U3600 EPA 8270D1100 1.003600750ug/kg<41 6/2/16 RPN2-Nitroaniline 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022041ug/kg<500 6/2/16 RPN2-Nitrophenol 05/27/2016 14:00 18:05 ^U1800 EPA 8270D540 1.001800500

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 13 of 176

Page 322: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 13 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727909

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1205

Analyte

Sample Description: GL-SD-01-052316

DODLOD

Client Sample #:

ug/kg<1200 6/2/16 RPN3 & 4-Methylphenol 05/27/2016 14:00 18:05 ^U6500 EPA 8270D1900 1.0065001200ug/kg<270 6/2/16 RPN3,3'-Dichlorobenzidine 05/27/2016 14:00 18:05 ^U900 EPA 8270D270 1.00900270ug/kg<40 6/2/16 RPN3-Nitroaniline 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022040ug/kg<490 6/2/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 14:00 18:05 ^U1800 EPA 8270D540 1.001800490ug/kg<45 6/2/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022045ug/kg<680 6/2/16 RPN4-Chloro-3-methylphenol 05/27/2016 14:00 18:05 ^U3600 EPA 8270D1100 1.003600680ug/kg<70 6/2/16 RPN4-Chloroaniline 05/27/2016 14:00 18:05 ^U360 EPA 8270D110 1.0036070ug/kg<47 6/2/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022047ug/kg<54 6/2/16 RPN4-Nitroaniline 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022054ug/kg<720 6/2/16 RPN4-Nitrophenol 05/27/2016 14:00 18:05 ^U3600 EPA 8270D1100 1.003600720ug/kg<43 6/2/16 RPNAcenaphthene 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022043ug/kg<43 6/2/16 RPNAcenaphthylene 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022043ug/kg<130 6/2/16 RPNAcetophenone 05/27/2016 14:00 18:05 ^U720 EPA 8270D220 1.00720130ug/kg<43 6/2/16 RPNAnthracene 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022043ug/kg<25 6/2/16 RPNAtrazine 05/27/2016 14:00 18:05U220 EPA 8270D110 1.0022025ug/kg70.1 6/2/16 RPNBenzaldehyde 05/27/2016 14:00 18:05J220 EPA 8270D110 1.0022034ug/kg137 6/2/16 RPNBenzo(a)anthracene 05/27/2016 14:00 18:05 ^J220 EPA 8270D110 1.0022045ug/kg124 6/2/16 RPNBenzo(a)pyrene 05/27/2016 14:00 18:05 ^J220 EPA 8270D110 1.0022041ug/kg219 6/2/16 RPNBenzo(b)fluoranthene 05/27/2016 14:00 18:05 ^J220 EPA 8270D110 1.0022045ug/kg108 6/2/16 RPNBenzo(g,h,i)perylene 05/27/2016 14:00 18:05 ^J220 EPA 8270D110 1.0022040ug/kg59.3 6/2/16 RPNBenzo(k)fluoranthene 05/27/2016 14:00 18:05 ^J220 EPA 8270D110 1.0022045ug/kg<41 6/2/16 RPNBis(2-chloroethoxy)methane 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022041ug/kg<45 6/2/16 RPNBis(2-chloroethyl)ether 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022045ug/kg<54 6/2/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022054ug/kg171 6/2/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 14:00 18:05 ^J720 EPA 8270D220 1.00720160ug/kg<130 6/2/16 RPNButylbenzylphthalate 05/27/2016 14:00 18:05 ^U720 EPA 8270D220 1.00720130ug/kg<130 6/2/16 RPNCaprolactam 05/27/2016 14:00 18:05U720 EPA 8270D220 1.00720130ug/kg<50 6/2/16 RPNCarbazole 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022050

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 14 of 176

Page 323: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 14 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727909

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1205

Analyte

Sample Description: GL-SD-01-052316

DODLOD

Client Sample #:

ug/kg237 6/2/16 RPNChrysene 05/27/2016 14:00 18:05 ^220 EPA 8270D110 1.0022045ug/kg154 6/2/16 RPNDi-n-butylphthalate 05/27/2016 14:00 18:05 ^J720 EPA 8270D220 1.00720140ug/kg<110 6/2/16 RPNDi-n-octylphthalate 05/27/2016 14:00 18:05 ^U360 EPA 8270D110 1.00360110ug/kg<40 6/2/16 RPNDibenzo(a,h)anthracene 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022040ug/kg<43 6/2/16 RPNDibenzofuran 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022043ug/kg<110 6/2/16 RPNDiethylphthalate 05/27/2016 14:00 18:05 ^U720 EPA 8270D220 1.00720110ug/kg<110 6/2/16 RPNDimethylphthalate 05/27/2016 14:00 18:05 ^U720 EPA 8270D220 1.00720110ug/kg241 6/2/16 RPNFluoranthene 05/27/2016 14:00 18:05 ^220 EPA 8270D110 1.0022047ug/kg<45 6/2/16 RPNFluorene 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022045ug/kg<50 6/2/16 RPNHexachlorobenzene 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022050ug/kg<110 6/2/16 RPNHexachlorobutadiene 05/27/2016 14:00 18:05 ^U720 EPA 8270D220 1.00720110ug/kg<93 Q 6/2/16 RPNHexachlorocyclopentadiene 05/27/2016 14:00 18:05 ^U360 EPA 8270D220 1.0036093ug/kg<59 6/2/16 RPNHexachloroethane 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022059ug/kg93.4 6/2/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 14:00 18:05 ^J220 EPA 8270D110 1.0022041ug/kg<90 6/2/16 RPNIsophorone 05/27/2016 14:00 18:05 ^U360 EPA 8270D110 1.0036090ug/kg<130 6/2/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 14:00 18:05 ^U720 EPA 8270D220 1.00720130ug/kg<90 6/2/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 14:00 18:05 ^U430 EPA 8270D220 1.0043090ug/kg<38 6/2/16 RPNNaphthalene 05/27/2016 14:00 18:05 ^U220 EPA 8270D110 1.0022038ug/kg<110 6/2/16 RPNNitrobenzene 05/27/2016 14:00 18:05 ^U360 EPA 8270D110 1.00360110ug/kg<430 6/2/16 RPNPentachlorophenol 05/27/2016 14:00 18:05 ^U1800 EPA 8270D540 1.001800430ug/kg135 6/2/16 RPNPhenanthrene 05/27/2016 14:00 18:05 ^J220 EPA 8270D110 1.0022047ug/kg<290 6/2/16 RPNPhenol 05/27/2016 14:00 18:05 ^U1100 EPA 8270D540 1.001100290ug/kg223 6/2/16 RPNPyrene 05/27/2016 14:00 18:05 ^220 EPA 8270D110 1.0022047% Recovery62 6/2/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 14:00 18:05 ^EPA 8270D1.0012535% Recovery65 6/2/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 14:00 18:05 ^EPA 8270D1.0010545% Recovery60 6/2/16 RPNSurr: 2-Fluorophenol 05/27/2016 14:00 18:05 ^EPA 8270D1.0010535% Recovery70 6/2/16 RPNSurr: Nitrobenzene-d5 05/27/2016 14:00 18:05 ^EPA 8270D1.0010035% Recovery60 6/2/16 RPNSurr: Phenol-d5 05/27/2016 14:00 18:05 ^EPA 8270D1.0010040

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 15 of 176

Page 324: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 15 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727909

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1205

Analyte

Sample Description: GL-SD-01-052316

DODLOD

Client Sample #:

% Recovery69 6/2/16 RPNSurr: Terphenyl-d14 05/27/2016 14:00 18:05 ^EPA 8270D1.0012530ug/kg<9.0 6/2/16 JJYAroclor-1016 05/27/2016 14:00 19:39U54 EPA 8082A36 1.00549.0ug/kg<13 6/2/16 JJYAroclor-1221 05/27/2016 14:00 19:39U54 EPA 8082A36 1.005413ug/kg<16 6/2/16 JJYAroclor-1232 05/27/2016 14:00 19:39U54 EPA 8082A36 1.005416ug/kg<13 6/2/16 JJYAroclor-1242 05/27/2016 14:00 19:39U54 EPA 8082A36 1.005413ug/kg65.1 6/2/16 JJYAroclor-1248 05/27/2016 14:00 19:3954 EPA 8082A36 1.005413ug/kg66.9 6/2/16 JJYAroclor-1254 05/27/2016 14:00 19:3954 EPA 8082A36 1.005416ug/kg23.5 6/2/16 JJYAroclor-1260 05/27/2016 14:00 19:39J54 EPA 8082A36 1.005411ug/kg<13 6/2/16 JJYAroclor-1262 05/27/2016 14:00 19:39U54 EPA 8082A36 1.005413ug/kg<9.0 6/2/16 JJYAroclor-1268 05/27/2016 14:00 19:39U54 EPA 8082A36 1.00549.0% Recovery105 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 14:00 19:39 EPA 8082A1.0013554% Recovery85 6/2/16 JJYSurr: DCBP 05/27/2016 14:00 19:39 EPA 8082A1.0014154

Sub Lab Results

ATTACHED 6/15/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 727910

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1250

Analyte

Sample Description: GL-SW-02-052316

DODLOD

Client Sample #:

Inorganic Results

S.U.7.70 6/1/16 SAWpH 14:20 ^0.1 EPA 9040C0.1 1.000.10.1

Metals Results

ug/L1810 M 5/28/16 NAHTotal Aluminum 05/26/2016 11:00 01:24 ^36 EPA 6010C18 1.00366.0ug/L<2.0 5/28/16 NAHTotal Antimony 05/26/2016 11:00 01:24 ^U12 EPA 6010C6.0 1.00122.0ug/L<4.0 5/28/16 NAHTotal Arsenic 05/26/2016 11:00 01:24 ^U24 EPA 6010C12 1.00244.0

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 16 of 176

Page 325: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 16 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727910

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1250

Analyte

Sample Description: GL-SW-02-052316

DODLOD

Client Sample #:

ug/L146 M 5/28/16 NAHTotal Barium 05/26/2016 11:00 01:24 ^1.8 EPA 6010C0.90 1.001.80.29ug/L<0.10 5/28/16 NAHTotal Beryllium 05/26/2016 11:00 01:24 ^U0.60 EPA 6010C0.30 1.000.600.10ug/L<0.30 5/28/16 NAHTotal Cadmium 05/26/2016 11:00 01:24 ^U2.0 EPA 6010C1.0 1.002.00.30ug/L83600 5/28/16 NAHTotal Calcium 05/26/2016 11:00 01:24 ^100 EPA 6010C50 1.0010017ug/L3.4 5/28/16 NAHTotal Chromium 05/26/2016 11:00 01:24 ^J4.0 EPA 6010C2.0 1.004.00.60ug/L2.3 5/28/16 NAHTotal Cobalt 05/26/2016 11:00 01:24 ^J4.0 EPA 6010C2.0 1.004.00.70ug/L7.3 5/28/16 NAHTotal Copper 05/26/2016 11:00 01:24 ^7.0 EPA 6010C3.5 1.007.01.2ug/L3440 M 5/28/16 NAHTotal Iron 05/26/2016 11:00 01:24 ^100 EPA 6010C50 1.0010016ug/L6.3 5/28/16 NAHTotal Lead 05/26/2016 11:00 01:24 ^4.0 EPA 6010C2.0 1.004.01.4ug/L46300 5/28/16 NAHTotal Magnesium 05/26/2016 11:00 01:24 ^40 EPA 6010C20 1.00406.0ug/L230 5/28/16 NAHTotal Manganese 05/26/2016 11:00 01:24 ^4.0 EPA 6010C2.0 1.004.00.70ug/L7.6 5/28/16 NAHTotal Nickel 05/26/2016 11:00 01:24 ^6.0 EPA 6010C3.0 1.006.01.0ug/L<2.2 5/28/16 NAHTotal Selenium 05/26/2016 11:00 01:24 ^U13 EPA 6010C6.5 1.00132.2ug/L<0.70 5/28/16 NAHTotal Silver 05/26/2016 11:00 01:24 ^U4.0 EPA 6010C2.0 1.004.00.70ug/L<2.5 M 5/28/16 NAHTotal Thallium 05/26/2016 11:00 01:24 ^U15 EPA 6010C7.5 1.00152.5ug/L4.2 5/28/16 NAHTotal Vanadium 05/26/2016 11:00 01:24 ^J5.0 EPA 6010C2.5 1.005.00.80ug/L33.1 M 5/28/16 NAHTotal Zinc 05/26/2016 11:00 01:24 ^10 EPA 6010C5.0 1.00101.6ug/L26900 5/27/16 MDSTotal Potassium 05/26/2016 11:00 13:05 ^500 EPA 6010C250 1.0050090ug/L47000 5/27/16 MDSTotal Sodium 05/26/2016 11:00 13:05 ^600 EPA 6010C300 1.00600100ug/L<0.030 M,Y 5/31/16 LJFTotal Mercury 05/27/2016 09:30 08:45 ^U0.12 EPA 7470A0.060 1.000.120.030

Organic Results

ug/L<0.21 5/31/16 AGK1,1,1-Trichloroethane 14:25 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.19 5/31/16 AGK1,1,2,2-Tetrachloroethane 14:25 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGK1,1,2-Trichloroethane 14:25 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.20 5/31/16 AGK1,1-Dichloroethane 14:25 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.24 5/31/16 AGK1,1-Dichloroethene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.30 5/31/16 AGK1,2,3-Trichlorobenzene 14:25 ^U1.0 EPA 8260C0.50 1.001.00.30

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 17 of 176

Page 326: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 17 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727910

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1250

Analyte

Sample Description: GL-SW-02-052316

DODLOD

Client Sample #:

ug/L<0.30 5/31/16 AGK1,2,4-Trichlorobenzene 14:25 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.40 5/31/16 AGK1,2-Dibromo-3-chloropropane 14:25 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.16 5/31/16 AGK1,2-Dibromoethane 14:25 ^U0.50 EPA 8260C0.25 1.000.500.16ug/L<0.23 5/31/16 AGK1,2-Dichlorobenzene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.30 5/31/16 AGK1,2-Dichloroethane 14:25 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGK1,2-Dichloropropane 14:25 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.26 5/31/16 AGK1,3-Dichlorobenzene 14:25 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.21 M 5/31/16 AGK1,4-Dichloro-2-butene 14:25U0.50 EPA 8260C0.25 1.000.500.21ug/L<5.0 Y,M,Z,Q 5/31/16 AGK1,4-Dioxane 14:25U25 EPA 8260C13 1.00255.0ug/L<0.50 5/31/16 AGK112Trichloro122trifluoroethane 14:25U1.0 EPA 8260C0.50 1.001.00.50ug/L<2.4 5/31/16 AGK2-Butanone 14:25 ^U5.0 EPA 8260C2.5 1.005.02.4ug/L<4.0 5/31/16 AGK2-Hexanone 14:25 ^U10 EPA 8260C5.0 1.00104.0ug/L<3.0 5/31/16 AGK4-Methyl-2-pentanone 14:25 ^U10 EPA 8260C5.0 1.00103.0ug/L<5.0 Y 5/31/16 AGKAcetone 14:25 ^U10 EPA 8260C5.0 1.00105.0ug/L<0.19 5/31/16 AGKBenzene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.19 5/31/16 AGKBromochloromethane 14:25 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.20 5/31/16 AGKBromodichloromethane 14:25 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.22 5/31/16 AGKBromoform 14:25 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.50 M,Y 5/31/16 AGKBromomethane 14:25 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.50 5/31/16 AGKCarbon disulfide 14:25 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.23 5/31/16 AGKCarbon tetrachloride 14:25 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.24 5/31/16 AGKChlorobenzene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.40 5/31/16 AGKChloroethane 14:25 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.15 5/31/16 AGKChloroform 14:25 ^U0.50 EPA 8260C0.25 1.000.500.15ug/L<0.40 5/31/16 AGKChloromethane 14:25 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.25 5/31/16 AGKcis-1,2-Dichloroethene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKcis-1,3-Dichloropropene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.28 5/31/16 AGKCyclohexane 14:25U1.0 EPA 8260C0.50 1.001.00.28

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 18 of 176

Page 327: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 18 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727910

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1250

Analyte

Sample Description: GL-SW-02-052316

DODLOD

Client Sample #:

ug/L<0.19 5/31/16 AGKDibromochloromethane 14:25 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGKDichlorodifluoromethane 14:25 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.22 5/31/16 AGKEthylbenzene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.18 5/31/16 AGKIsopropylbenzene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.18ug/L<0.50 5/31/16 AGKm & p-Xylene 14:25 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.30 5/31/16 AGKMethyl acetate 14:25U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.29 5/31/16 AGKMethyl tert-butyl ether 14:25 ^U1.0 EPA 8260C0.50 1.001.00.29ug/L<0.23 5/31/16 AGKMethylcyclohexane 14:25U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.40 5/31/16 AGKMethylene chloride 14:25 ^U2.0 EPA 8260C0.50 1.002.00.40ug/L<0.24 5/31/16 AGKo-Xylene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.20 5/31/16 AGKStyrene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.30 5/31/16 AGKTetrachloroethene 14:25 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGKToluene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.25 5/31/16 AGKtrans-1,2-Dichloroethene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKtrans-1,3-Dichloropropene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.21 5/31/16 AGKTrichloroethene 14:25 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.20 5/31/16 AGKTrichlorofluoromethane 14:25 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.18 5/31/16 AGKVinyl chloride 14:25 ^U0.50 EPA 8260C0.25 1.000.500.18% Recovery98 5/31/16 AGK1,2 Dichloroethane-d4 14:25 EPA 8260C1.0012070% Recovery95 5/31/16 AGKBromofluorobenzene 14:25 EPA 8260C1.0012075% Recovery103 5/31/16 AGKd8-Toluene 14:25 EPA 8260C1.0012085% Recovery100 5/31/16 AGKDibromofluoromethane 14:25 EPA 8260C1.0011585ug/L<0.0069 6/7/16 JJY4,4'-DDD 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0069ug/L<0.0069 6/7/16 JJY4,4'-DDE 05/27/2016 11:00 00:52 ^U0.046 EPA 8081B0.011 1.000.0460.0069ug/L<0.0080 6/7/16 JJY4,4'-DDT 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0080ug/L<0.0069 6/7/16 JJYAldrin 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0069ug/L0.0092 6/7/16 JJYalpha-BHC 05/27/2016 11:00 00:52 ^J0.028 EPA 8081B0.011 1.000.0280.0057ug/L<0.010 6/7/16 JJYalpha-Chlordane 05/27/2016 11:00 00:52 ^U0.046 EPA 8081B0.011 1.000.0460.010

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 19 of 176

Page 328: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 19 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727910

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1250

Analyte

Sample Description: GL-SW-02-052316

DODLOD

Client Sample #:

ug/L<0.010 6/7/16 JJYbeta-BHC 05/27/2016 11:00 00:52 ^U0.046 EPA 8081B0.011 1.000.0460.010ug/L<0.12 M 6/7/16 JJYChlordane (Technical) 05/27/2016 11:00 00:52 ^U0.69 EPA 8081B0.23 1.000.690.12ug/L<0.0057 6/7/16 JJYdelta-BHC 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0057ug/L<0.0069 6/7/16 JJYDieldrin 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0069ug/L<0.010 Q 6/7/16 JJYEndosulfan I 05/27/2016 11:00 00:52 ^U0.046 EPA 8081B0.011 1.000.0460.010ug/L<0.0080 6/7/16 JJYEndosulfan II 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0080ug/L<0.0069 6/7/16 JJYEndosulfan sulfate 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0069ug/L<0.0069 6/7/16 JJYEndrin 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0069ug/L<0.010 6/7/16 JJYEndrin aldehyde 05/27/2016 11:00 00:52 ^U0.046 EPA 8081B0.011 1.000.0460.010ug/L<0.0080 6/7/16 JJYEndrin ketone 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0080ug/L<0.0080 6/7/16 JJYgamma-Chlordane 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0080ug/L<0.0069 6/7/16 JJYHeptachlor 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0069ug/L<0.0080 6/7/16 JJYHeptachlor epoxide 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0080ug/L<0.0080 6/7/16 JJYLindane 05/27/2016 11:00 00:52 ^U0.028 EPA 8081B0.011 1.000.0280.0080ug/L<0.0069 6/7/16 JJYMethoxychlor 05/27/2016 11:00 00:52 ^U0.046 EPA 8081B0.011 1.000.0460.0069ug/L<0.20 M 6/7/16 JJYToxaphene 05/27/2016 11:00 00:52 ^U0.69 EPA 8081B0.23 1.000.690.20% Recovery72 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 11:00 00:52 EPA 8081B1.0014025% Recovery80 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 11:00 00:52 EPA 8081B1.0013530ug/L<0.18 6/1/16 RPN1,1'-Biphenyl 05/27/2016 15:00 17:32U1.2 EPA 8270D0.47 1.001.20.18ug/L<0.20 6/1/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 15:00 17:32U1.2 EPA 8270D0.47 1.001.20.20ug/L<1.3 6/1/16 RPN2,4,5-Trichlorophenol 05/27/2016 15:00 17:32 ^U5.9 EPA 8270D2.4 1.005.91.3ug/L<1.2 6/1/16 RPN2,4,6-Trichlorophenol 05/27/2016 15:00 17:32 ^U5.9 EPA 8270D2.4 1.005.91.2ug/L<1.2 6/1/16 RPN2,4-Dichlorophenol 05/27/2016 15:00 17:32 ^U5.9 EPA 8270D2.4 1.005.91.2ug/L<0.96 6/1/16 RPN2,4-Dimethylphenol 05/27/2016 15:00 17:32 ^U5.9 EPA 8270D2.4 1.005.90.96ug/L<1.8 6/1/16 RPN2,4-Dinitrophenol 05/27/2016 15:00 17:32 ^U12 EPA 8270D5.9 1.00121.8ug/L<0.25 6/1/16 RPN2,4-Dinitrotoluene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.25ug/L<0.33 6/1/16 RPN2,6-Dinitrotoluene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.33ug/L<0.21 6/1/16 RPN2-Chloronaphthalene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.21

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 20 of 176

Page 329: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 20 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727910

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1250

Analyte

Sample Description: GL-SW-02-052316

DODLOD

Client Sample #:

ug/L<1.0 6/1/16 RPN2-Chlorophenol 05/27/2016 15:00 17:32 ^U5.9 EPA 8270D2.4 1.005.91.0ug/L<0.20 6/1/16 RPN2-Methylnaphthalene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.20ug/L<1.0 6/1/16 RPN2-Methylphenol 05/27/2016 15:00 17:32 ^U5.9 EPA 8270D2.4 1.005.91.0ug/L<0.26 6/1/16 RPN2-Nitroaniline 05/27/2016 15:00 17:32 ^U2.4 EPA 8270D0.47 1.002.40.26ug/L<1.1 6/1/16 RPN2-Nitrophenol 05/27/2016 15:00 17:32 ^U5.9 EPA 8270D2.4 1.005.91.1ug/L<1.6 6/1/16 RPN3 & 4-Methylphenol 05/27/2016 15:00 17:32 ^U11 EPA 8270D4.2 1.00111.6ug/L<0.78 M 6/1/16 RPN3,3'-Dichlorobenzidine 05/27/2016 15:00 17:32 ^U2.9 EPA 8270D1.2 1.002.90.78ug/L<0.31 6/1/16 RPN3-Nitroaniline 05/27/2016 15:00 17:32 ^U2.4 EPA 8270D1.2 1.002.40.31ug/L<1.9 6/1/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 15:00 17:32 ^U12 EPA 8270D2.4 1.00121.9ug/L<0.24 6/1/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 15:00 17:32 ^U2.4 EPA 8270D0.47 1.002.40.24ug/L<0.94 6/1/16 RPN4-Chloro-3-methylphenol 05/27/2016 15:00 17:32 ^U5.9 EPA 8270D2.4 1.005.90.94ug/L<0.14 6/1/16 RPN4-Chloroaniline 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.14ug/L<0.21 6/1/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.21ug/L<0.18 6/1/16 RPN4-Nitroaniline 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.18ug/L<1.3 6/1/16 RPN4-Nitrophenol 05/27/2016 15:00 17:32 ^U12 EPA 8270D5.9 1.00121.3ug/L<0.21 6/1/16 RPNAcenaphthene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.21ug/L<0.20 6/1/16 RPNAcenaphthylene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.20ug/L<0.32 6/1/16 RPNAcetophenone 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.32ug/L<0.13 6/1/16 RPNAnthracene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.13ug/L<0.31 6/1/16 RPNAtrazine 05/27/2016 15:00 17:32U1.2 EPA 8270D0.47 1.001.20.31ug/L<0.29 6/1/16 RPNBenzaldehyde 05/27/2016 15:00 17:32U1.2 EPA 8270D0.47 1.001.20.29ug/L<0.14 6/1/16 RPNBenzo(a)anthracene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.14ug/L<0.16 6/1/16 RPNBenzo(a)pyrene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.16ug/L<0.20 6/1/16 RPNBenzo(b)fluoranthene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.20ug/L<0.25 6/1/16 RPNBenzo(g,h,i)perylene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.25ug/L<0.24 6/1/16 RPNBenzo(k)fluoranthene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.24ug/L<0.22 6/1/16 RPNBis(2-chloroethoxy)methane 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.22ug/L<0.25 6/1/16 RPNBis(2-chloroethyl)ether 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.25

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 21 of 176

Page 330: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 21 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727910

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1250

Analyte

Sample Description: GL-SW-02-052316

DODLOD

Client Sample #:

ug/L<0.26 6/1/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.26ug/L0.80 6/1/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 15:00 17:32 ^J2.4 EPA 8270D1.2 1.002.40.52ug/L<0.55 6/1/16 RPNButylbenzylphthalate 05/27/2016 15:00 17:32 ^U2.4 EPA 8270D1.2 1.002.40.55ug/L<0.22 6/1/16 RPNCaprolactam 05/27/2016 15:00 17:32U2.4 EPA 8270D1.2 1.002.40.22ug/L<0.14 6/1/16 RPNCarbazole 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.14ug/L<0.19 6/1/16 RPNChrysene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.19ug/L1.3 6/1/16 RPNDi-n-butylphthalate 05/27/2016 15:00 17:32 ^J4.7 EPA 8270D2.4 1.004.70.79ug/L<0.58 6/1/16 RPNDi-n-octylphthalate 05/27/2016 15:00 17:32 ^U2.4 EPA 8270D1.2 1.002.40.58ug/L<0.20 6/1/16 RPNDibenzo(a,h)anthracene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.20ug/L<0.22 6/1/16 RPNDibenzofuran 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.22ug/L<0.53 6/1/16 RPNDiethylphthalate 05/27/2016 15:00 17:32 ^U2.4 EPA 8270D1.2 1.002.40.53ug/L<0.64 6/1/16 RPNDimethylphthalate 05/27/2016 15:00 17:32 ^U2.4 EPA 8270D1.2 1.002.40.64ug/L<0.15 6/1/16 RPNFluoranthene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.15ug/L<0.22 6/1/16 RPNFluorene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.22ug/L<0.32 6/1/16 RPNHexachlorobenzene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.32ug/L<0.21 6/1/16 RPNHexachlorobutadiene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.21ug/L<0.31 6/1/16 RPNHexachlorocyclopentadiene 05/27/2016 15:00 17:32 ^U2.4 EPA 8270D1.2 1.002.40.31ug/L<0.26 6/1/16 RPNHexachloroethane 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.26ug/L<0.21 6/1/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.21ug/L<0.21 6/1/16 RPNIsophorone 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.21ug/L<0.21 6/1/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.21ug/L<0.42 6/1/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 15:00 17:32 ^U2.4 EPA 8270D0.94 1.002.40.42ug/L<0.21 6/1/16 RPNNaphthalene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.21ug/L<0.19 6/1/16 RPNNitrobenzene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.19ug/L<1.3 6/1/16 RPNPentachlorophenol 05/27/2016 15:00 17:32 ^U5.9 EPA 8270D2.4 1.005.91.3ug/L<0.35 6/1/16 RPNPhenanthrene 05/27/2016 15:00 17:32 ^U1.2 EPA 8270D0.47 1.001.20.35ug/L<0.56 6/1/16 RPNPhenol 05/27/2016 15:00 17:32 ^U5.9 EPA 8270D2.4 1.005.90.56ug/L0.16 6/1/16 RPNPyrene 05/27/2016 15:00 17:32 ^J1.2 EPA 8270D0.47 1.001.20.15

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 22 of 176

Page 331: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 22 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727910

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1250

Analyte

Sample Description: GL-SW-02-052316

DODLOD

Client Sample #:

% Recovery68 6/1/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 15:00 17:32 ^EPA 8270D1.0012540% Recovery59 6/1/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 15:00 17:32 ^EPA 8270D1.0011050% Recovery38 6/1/16 RPNSurr: 2-Fluorophenol 05/27/2016 15:00 17:32 ^EPA 8270D1.0011020% Recovery63 6/1/16 RPNSurr: Nitrobenzene-d5 05/27/2016 15:00 17:32 ^EPA 8270D1.0011040% Recovery27 6/1/16 RPNSurr: Phenol-d5 05/27/2016 15:00 17:32 ^EPA 8270D1.0011510% Recovery62 6/1/16 RPNSurr: Terphenyl-d14 05/27/2016 15:00 17:32 ^EPA 8270D1.0013550ug/L<0.13 6/2/16 JJYAroclor-1016 05/27/2016 11:00 16:45U1.1 EPA 8082A0.34 1.001.10.13ug/L<0.098 6/2/16 JJYAroclor-1221 05/27/2016 11:00 16:45U1.1 EPA 8082A0.34 1.001.10.098ug/L<0.17 6/2/16 JJYAroclor-1232 05/27/2016 11:00 16:45U1.1 EPA 8082A0.34 1.001.10.17ug/L<0.11 6/2/16 JJYAroclor-1242 05/27/2016 11:00 16:45U1.1 EPA 8082A0.34 1.001.10.11ug/L<0.10 6/2/16 JJYAroclor-1248 05/27/2016 11:00 16:45U1.1 EPA 8082A0.34 1.001.10.10ug/L<0.11 6/2/16 JJYAroclor-1254 05/27/2016 11:00 16:45U1.1 EPA 8082A0.34 1.001.10.11ug/L<0.11 6/2/16 JJYAroclor-1260 05/27/2016 11:00 16:45U1.1 EPA 8082A0.34 1.001.10.11ug/L<0.32 6/2/16 JJYAroclor-1262 05/27/2016 11:00 16:45U1.1 EPA 8082A0.34 1.001.10.32ug/L<0.064 6/2/16 JJYAroclor-1268 05/27/2016 11:00 16:45U1.1 EPA 8082A0.34 1.001.10.064% Recovery91 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 11:00 16:45 EPA 8082A1.0013738% Recovery100 6/2/16 JJYSurr: DCBP 05/27/2016 11:00 16:45 EPA 8082A1.0014723

Sub Lab Results

ATTACHED 6/15/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 727929

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1300

Analyte

Sample Description: GL-SD-02-052316

DODLOD

Client Sample #:

Inorganic Results

%54.2 5/26/16 ABSSolids, Percent 10:220.1 EPA 8000C0.1 1.000.10.1

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 23 of 176

Page 332: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 23 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727929

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1300

Analyte

Sample Description: GL-SD-02-052316

DODLOD

Client Sample #:

mg/kg36100 6/1/16 JJFTotal Organic Carbon 11:43 ^3300 L-Kahn/9060A1700 1.003300560

Metals Results

mg/kg5780 M 5/27/16 NAHAluminum 05/26/2016 07:00 20:14 ^0.44 EPA 6010C0.22 1.000.440.073mg/kg0.24 5/27/16 NAHAntimony 05/26/2016 07:00 20:14 ^J1.5 EPA 6010C0.73 1.001.50.24mg/kg4.4 5/27/16 NAHArsenic 05/26/2016 07:00 20:14 ^1.5 EPA 6010C0.73 1.001.50.24mg/kg37.3 M,Y 5/27/16 NAHBarium 05/26/2016 07:00 20:14 ^0.092 EPA 6010C0.046 1.000.0920.017mg/kg0.12 5/27/16 NAHBeryllium 05/26/2016 07:00 20:14 ^0.073 EPA 6010C0.022 1.000.0730.0073mg/kg0.22 5/27/16 NAHCadmium 05/26/2016 07:00 20:14 ^0.073 EPA 6010C0.037 1.000.0730.011mg/kg45200 M 5/27/16 NAHCalcium 05/26/2016 07:00 20:14 ^2.6 EPA 6010C1.3 1.002.60.44mg/kg10.6 5/27/16 NAHChromium 05/26/2016 07:00 20:14 ^0.26 EPA 6010C0.13 1.000.260.042mg/kg6.7 5/27/16 NAHCobalt 05/26/2016 07:00 20:14 ^0.44 EPA 6010C0.22 1.000.440.073mg/kg19.8 M,Y 5/27/16 NAHCopper 05/26/2016 07:00 20:14 ^0.73 EPA 6010C0.37 1.000.730.13mg/kg12500 M 5/27/16 NAHIron 05/26/2016 07:00 20:14 ^3.3 EPA 6010C1.7 1.003.30.55mg/kg29.2 Y 5/27/16 NAHLead 05/26/2016 07:00 20:14 ^0.46 EPA 6010C0.23 1.000.460.073mg/kg11600 5/27/16 NAHMagnesium 05/26/2016 07:00 20:14 ^1.5 EPA 6010C0.73 1.001.50.26mg/kg367 5/27/16 NAHManganese 05/26/2016 07:00 20:14 ^0.28 EPA 6010C0.14 1.000.280.046mg/kg18.3 5/27/16 NAHNickel 05/26/2016 07:00 20:14 ^0.22 EPA 6010C0.11 1.000.220.039mg/kg0.80 5/27/16 NAHSelenium 05/26/2016 07:00 20:14 ^0.73 EPA 6010C0.37 1.000.730.11mg/kg<0.031 5/27/16 NAHSilver 05/26/2016 07:00 20:14 ^U0.18 EPA 6010C0.092 1.000.180.031mg/kg<0.15 5/27/16 NAHThallium 05/26/2016 07:00 20:14 ^U0.88 EPA 6010C0.44 1.000.880.15mg/kg13.8 5/27/16 NAHVanadium 05/26/2016 07:00 20:14 ^0.15 EPA 6010C0.073 1.000.150.022mg/kg88.1 M 5/27/16 NAHZinc 05/26/2016 07:00 20:14 ^0.55 EPA 6010C0.28 1.000.550.092mg/kg1160 5/27/16 MDSPotassium 05/26/2016 07:00 07:55 ^120 EPA 6010C61 1.0012020mg/kg165 5/27/16 MDSSodium 05/26/2016 07:00 07:55 ^44 EPA 6010C22 1.00447.3mg/kg0.048 5/31/16 LJFMercury 05/27/2016 12:00 14:47 ^0.016 EPA 7471B0.0079 1.000.0160.0039

Organic Results

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 24 of 176

Page 333: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 24 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727929

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1300

Analyte

Sample Description: GL-SD-02-052316

DODLOD

Client Sample #:

ug/kg<11 5/29/16 RLD1,1,1-Trichloroethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005611ug/kg<6.8 5/29/16 RLD1,1,2,2-Tetrachloroethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00566.8ug/kg<9.0 5/29/16 RLD1,1,2-Trichloroethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00569.0ug/kg<12 5/29/16 RLD1,1-Dichloroethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005612ug/kg<18 5/29/16 RLD1,1-Dichloroethene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005618ug/kg<9.0 5/29/16 RLD1,2,3-Trichlorobenzene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00569.0ug/kg<10 5/29/16 RLD1,2,4-Trichlorobenzene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005610ug/kg<14 5/29/16 RLD1,2-Dibromo-3-chloropropane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005614ug/kg<11 5/29/16 RLD1,2-Dibromoethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005611ug/kg<10 5/29/16 RLD1,2-Dichlorobenzene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005610ug/kg<14 5/29/16 RLD1,2-Dichloroethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005614ug/kg<7.9 5/29/16 RLD1,2-Dichloropropane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00567.9ug/kg<9.0 5/29/16 RLD1,3-Dichlorobenzene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00569.0ug/kg<10 5/29/16 RLD1,4-Dichloro-2-butene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005610ug/kg<450 5/29/16 RLD1,4-Dioxane 05/25/2016 16:20 12:18 ^U5600 EPA 8260C1100 1.005600450ug/kg<23 5/29/16 RLD112Trichloro122trifluoroethane 05/25/2016 16:20 12:18 ^U110 EPA 8260C45 1.0011023ug/kg<110 5/29/16 RLD2-Butanone 05/25/2016 16:20 12:18 ^U560 EPA 8260C230 1.00560110ug/kg<77 5/29/16 RLD2-Hexanone 05/25/2016 16:20 12:18 ^U560 EPA 8260C230 1.0056077ug/kg<92 5/29/16 RLD4-Methyl-2-pentanone 05/25/2016 16:20 12:18 ^U560 EPA 8260C230 1.0056092ug/kg<71 5/29/16 RLDAcetone 05/25/2016 16:20 12:18 ^U560 EPA 8260C230 1.0056071ug/kg<5.6 5/29/16 RLDBenzene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00565.6ug/kg<9.0 5/29/16 RLDBromochloromethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00569.0ug/kg<10 5/29/16 RLDBromodichloromethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005610ug/kg<6.8 5/29/16 RLDBromoform 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00566.8ug/kg<34 5/29/16 RLDBromomethane 05/25/2016 16:20 12:18 ^U110 EPA 8260C56 1.0011034ug/kg<17 5/29/16 RLDCarbon disulfide 05/25/2016 16:20 12:18 ^U110 EPA 8260C45 1.0011017ug/kg<12 5/29/16 RLDCarbon tetrachloride 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005612ug/kg<9.0 5/29/16 RLDChlorobenzene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00569.0

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 25 of 176

Page 334: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 25 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727929

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1300

Analyte

Sample Description: GL-SD-02-052316

DODLOD

Client Sample #:

ug/kg<21 5/29/16 RLDChloroethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005621ug/kg<10 5/29/16 RLDChloroform 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005610ug/kg<28 5/29/16 RLDChloromethane 05/25/2016 16:20 12:18 ^U110 EPA 8260C56 1.0011028ug/kg<11 5/29/16 RLDcis-1,2-Dichloroethene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005611ug/kg<11 5/29/16 RLDcis-1,3-Dichloropropene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005611ug/kg<14 5/29/16 RLDCyclohexane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005614ug/kg<9.0 5/29/16 RLDDibromochloromethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00569.0ug/kg<15 5/29/16 RLDDichlorodifluoromethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005615ug/kg<9.0 5/29/16 RLDEthylbenzene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00569.0ug/kg<9.0 5/29/16 RLDIsopropylbenzene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00569.0ug/kg<20 5/29/16 RLDm & p-Xylene 05/25/2016 16:20 12:18 ^U110 EPA 8260C45 1.0011020ug/kg318 M 5/29/16 RLDMethyl acetate 05/25/2016 16:20 12:18 ^56 EPA 8260C23 1.005614ug/kg<32 5/29/16 RLDMethyl tert-butyl ether 05/25/2016 16:20 12:18 ^U110 EPA 8260C56 1.0011032ug/kg<10 5/29/16 RLDMethylcyclohexane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005610ug/kg<45 5/29/16 RLDMethylene chloride 05/25/2016 16:20 12:18 ^U110 EPA 8260C56 1.0011045ug/kg<9.0 5/29/16 RLDo-Xylene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00569.0ug/kg<6.8 5/29/16 RLDStyrene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00566.8ug/kg<9.0 5/29/16 RLDTetrachloroethene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00569.0ug/kg<7.9 5/29/16 RLDToluene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00567.9ug/kg<12 5/29/16 RLDtrans-1,2-Dichloroethene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005612ug/kg<7.9 5/29/16 RLDtrans-1,3-Dichloropropene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.00567.9ug/kg<11 5/29/16 RLDTrichloroethene 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005611ug/kg<15 5/29/16 RLDTrichlorofluoromethane 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005615ug/kg<16 5/29/16 RLDVinyl chloride 05/25/2016 16:20 12:18 ^U56 EPA 8260C23 1.005616% Recovery101 5/29/16 RLD1,2 Dichloroethane-d4 05/25/2016 16:20 12:18 EPA 8260C1.0011780% Recovery106 5/29/16 RLDBromofluorobenzene 05/25/2016 16:20 12:18 EPA 8260C1.0012085% Recovery102 5/29/16 RLDd8-Toluene 05/25/2016 16:20 12:18 EPA 8260C1.0011585% Recovery101 5/29/16 RLDDibromofluoromethane 05/25/2016 16:20 12:18 EPA 8260C1.0011879

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 26 of 176

Page 335: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 26 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727929

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1300

Analyte

Sample Description: GL-SD-02-052316

DODLOD

Client Sample #:

ug/kg4.39 6/7/16 JJY4,4'-DDD 05/27/2016 14:00 15:50 ^3.7 EPA 8081B1.8 1.003.70.55ug/kg4.75 P 6/7/16 JJY4,4'-DDE 05/27/2016 14:00 15:50 ^3.7 EPA 8081B1.8 1.003.70.55ug/kg5.30 6/7/16 JJY4,4'-DDT 05/27/2016 14:00 15:50 ^3.7 EPA 8081B1.8 1.003.70.91ug/kg<0.91 6/7/16 JJYAldrin 05/27/2016 14:00 15:50 ^U3.7 EPA 8081B1.8 1.003.70.91ug/kg<1.1 6/7/16 JJYalpha-BHC 05/27/2016 14:00 15:50 ^U7.3 EPA 8081B3.7 1.007.31.1ug/kg<0.55 Q 6/7/16 JJYalpha-Chlordane 05/27/2016 14:00 15:50 ^U3.7 EPA 8081B1.8 1.003.70.55ug/kg7.68 P 6/7/16 JJYbeta-BHC 05/27/2016 14:00 15:50 ^7.3 EPA 8081B3.7 1.007.31.1ug/kg<9.1 6/7/16 JJYChlordane (Technical) 05/27/2016 14:00 15:50 ^U73 EPA 8081B37 1.00739.1ug/kg2.93 P,M 6/7/16 JJYdelta-BHC 05/27/2016 14:00 15:50 ^J3.7 EPA 8081B1.8 1.003.70.55ug/kg6.22 P 6/7/16 JJYDieldrin 05/27/2016 14:00 15:50 ^3.7 EPA 8081B1.8 1.003.70.55ug/kg<1.3 6/7/16 JJYEndosulfan I 05/27/2016 14:00 15:50 ^U7.3 EPA 8081B3.7 1.007.31.3ug/kg<0.55 6/7/16 JJYEndosulfan II 05/27/2016 14:00 15:50 ^U3.7 EPA 8081B1.8 1.003.70.55ug/kg<1.6 6/7/16 JJYEndosulfan sulfate 05/27/2016 14:00 15:50 ^U7.3 EPA 8081B3.7 1.007.31.6ug/kg<0.73 6/7/16 JJYEndrin 05/27/2016 14:00 15:50 ^U3.7 EPA 8081B1.8 1.003.70.73ug/kg<2.0 6/7/16 JJYEndrin aldehyde 05/27/2016 14:00 15:50 ^U7.3 EPA 8081B3.7 1.007.32.0ug/kg<1.5 6/7/16 JJYEndrin ketone 05/27/2016 14:00 15:50 ^U7.3 EPA 8081B3.7 1.007.31.5ug/kg<0.55 6/7/16 JJYgamma-Chlordane 05/27/2016 14:00 15:50 ^U3.7 EPA 8081B1.8 1.003.70.55ug/kg<0.73 6/7/16 JJYHeptachlor 05/27/2016 14:00 15:50 ^U3.7 EPA 8081B1.8 1.003.70.73ug/kg1.10 P 6/7/16 JJYHeptachlor epoxide 05/27/2016 14:00 15:50 ^J3.7 EPA 8081B1.8 1.003.70.91ug/kg<0.91 6/7/16 JJYLindane 05/27/2016 14:00 15:50 ^U3.7 EPA 8081B1.8 1.003.70.91ug/kg3.66 6/7/16 JJYMethoxychlor 05/27/2016 14:00 15:50 ^J7.3 EPA 8081B3.7 1.007.31.3ug/kg<16 6/7/16 JJYToxaphene 05/27/2016 14:00 15:50 ^U73 EPA 8081B37 1.007316% Recovery82 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 14:00 15:50 EPA 8081B1.0012570% Recovery55 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 14:00 15:50 EPA 8081B1.0013055ug/kg<26 6/2/16 RPN1,1'-Biphenyl 05/27/2016 14:00 16:57U220 EPA 8270D110 1.0022026ug/kg<40 6/2/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 14:00 16:57U220 EPA 8270D110 1.0022040ug/kg<240 M 6/2/16 RPN2,4,5-Trichlorophenol 05/27/2016 14:00 16:57 ^U1100 EPA 8270D550 1.001100240ug/kg<240 6/2/16 RPN2,4,6-Trichlorophenol 05/27/2016 14:00 16:57 ^U1100 EPA 8270D550 1.001100240

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 27 of 176

Page 336: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 27 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727929

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1300

Analyte

Sample Description: GL-SD-02-052316

DODLOD

Client Sample #:

ug/kg<220 6/2/16 RPN2,4-Dichlorophenol 05/27/2016 14:00 16:57 ^U1100 EPA 8270D550 1.001100220ug/kg<180 6/2/16 RPN2,4-Dimethylphenol 05/27/2016 14:00 16:57 ^U1100 EPA 8270D550 1.001100180ug/kg<490 6/2/16 RPN2,4-Dinitrophenol 05/27/2016 14:00 16:57 ^U1800 EPA 8270D1100 1.001800490ug/kg<44 6/2/16 RPN2,4-Dinitrotoluene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022044ug/kg<44 6/2/16 RPN2,6-Dinitrotoluene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022044ug/kg<42 6/2/16 RPN2-Chloronaphthalene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022042ug/kg<620 6/2/16 RPN2-Chlorophenol 05/27/2016 14:00 16:57 ^U3700 EPA 8270D1100 1.003700620ug/kg<46 6/2/16 RPN2-Methylnaphthalene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022046ug/kg<770 6/2/16 RPN2-Methylphenol 05/27/2016 14:00 16:57 ^U3700 EPA 8270D1100 1.003700770ug/kg<42 6/2/16 RPN2-Nitroaniline 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022042ug/kg<510 6/2/16 RPN2-Nitrophenol 05/27/2016 14:00 16:57 ^U1800 EPA 8270D550 1.001800510ug/kg<1200 6/2/16 RPN3 & 4-Methylphenol 05/27/2016 14:00 16:57 ^U6600 EPA 8270D2000 1.0066001200ug/kg<270 M 6/2/16 RPN3,3'-Dichlorobenzidine 05/27/2016 14:00 16:57 ^U910 EPA 8270D270 1.00910270ug/kg<40 M 6/2/16 RPN3-Nitroaniline 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022040ug/kg<490 6/2/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 14:00 16:57 ^U1800 EPA 8270D550 1.001800490ug/kg<46 6/2/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022046ug/kg<690 6/2/16 RPN4-Chloro-3-methylphenol 05/27/2016 14:00 16:57 ^U3700 EPA 8270D1100 1.003700690ug/kg<71 M 6/2/16 RPN4-Chloroaniline 05/27/2016 14:00 16:57 ^U370 EPA 8270D110 1.0037071ug/kg<47 6/2/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022047ug/kg<55 6/2/16 RPN4-Nitroaniline 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022055ug/kg<730 6/2/16 RPN4-Nitrophenol 05/27/2016 14:00 16:57 ^U3700 EPA 8270D1100 1.003700730ug/kg<44 6/2/16 RPNAcenaphthene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022044ug/kg<44 6/2/16 RPNAcenaphthylene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022044ug/kg<140 6/2/16 RPNAcetophenone 05/27/2016 14:00 16:57 ^U730 EPA 8270D220 1.00730140ug/kg<44 6/2/16 RPNAnthracene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022044ug/kg<26 6/2/16 RPNAtrazine 05/27/2016 14:00 16:57U220 EPA 8270D110 1.0022026ug/kg<35 6/2/16 RPNBenzaldehyde 05/27/2016 14:00 16:57U220 EPA 8270D110 1.0022035ug/kg124 6/2/16 RPNBenzo(a)anthracene 05/27/2016 14:00 16:57 ^J220 EPA 8270D110 1.0022046

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 28 of 176

Page 337: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 28 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727929

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1300

Analyte

Sample Description: GL-SD-02-052316

DODLOD

Client Sample #:

ug/kg102 6/2/16 RPNBenzo(a)pyrene 05/27/2016 14:00 16:57 ^J220 EPA 8270D110 1.0022042ug/kg177 6/2/16 RPNBenzo(b)fluoranthene 05/27/2016 14:00 16:57 ^J220 EPA 8270D110 1.0022046ug/kg95.0 6/2/16 RPNBenzo(g,h,i)perylene 05/27/2016 14:00 16:57 ^J220 EPA 8270D110 1.0022040ug/kg<46 6/2/16 RPNBenzo(k)fluoranthene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022046ug/kg<42 6/2/16 RPNBis(2-chloroethoxy)methane 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022042ug/kg<46 6/2/16 RPNBis(2-chloroethyl)ether 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022046ug/kg<55 6/2/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022055ug/kg221 6/2/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 14:00 16:57 ^J730 EPA 8270D220 1.00730160ug/kg<130 6/2/16 RPNButylbenzylphthalate 05/27/2016 14:00 16:57 ^U730 EPA 8270D220 1.00730130ug/kg<140 M 6/2/16 RPNCaprolactam 05/27/2016 14:00 16:57U730 EPA 8270D220 1.00730140ug/kg<51 6/2/16 RPNCarbazole 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022051ug/kg186 6/2/16 RPNChrysene 05/27/2016 14:00 16:57 ^J220 EPA 8270D110 1.0022046ug/kg141 6/2/16 RPNDi-n-butylphthalate 05/27/2016 14:00 16:57 ^J730 EPA 8270D220 1.00730140ug/kg<110 6/2/16 RPNDi-n-octylphthalate 05/27/2016 14:00 16:57 ^U370 EPA 8270D110 1.00370110ug/kg<40 6/2/16 RPNDibenzo(a,h)anthracene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022040ug/kg<44 6/2/16 RPNDibenzofuran 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022044ug/kg<120 6/2/16 RPNDiethylphthalate 05/27/2016 14:00 16:57 ^U730 EPA 8270D220 1.00730120ug/kg<120 6/2/16 RPNDimethylphthalate 05/27/2016 14:00 16:57 ^U730 EPA 8270D220 1.00730120ug/kg205 6/2/16 RPNFluoranthene 05/27/2016 14:00 16:57 ^J220 EPA 8270D110 1.0022047ug/kg<46 6/2/16 RPNFluorene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022046ug/kg<51 6/2/16 RPNHexachlorobenzene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022051ug/kg<110 6/2/16 RPNHexachlorobutadiene 05/27/2016 14:00 16:57 ^U730 EPA 8270D220 1.00730110ug/kg<95 Q,M,Y 6/2/16 RPNHexachlorocyclopentadiene 05/27/2016 14:00 16:57 ^U370 EPA 8270D220 1.0037095ug/kg<60 6/2/16 RPNHexachloroethane 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022060ug/kg65.8 6/2/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 14:00 16:57 ^J220 EPA 8270D110 1.0022042ug/kg<91 6/2/16 RPNIsophorone 05/27/2016 14:00 16:57 ^U370 EPA 8270D110 1.0037091ug/kg<130 6/2/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 14:00 16:57 ^U730 EPA 8270D220 1.00730130ug/kg<91 6/2/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 14:00 16:57 ^U440 EPA 8270D220 1.0044091

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 29 of 176

Page 338: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 29 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727929

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1300

Analyte

Sample Description: GL-SD-02-052316

DODLOD

Client Sample #:

ug/kg<38 6/2/16 RPNNaphthalene 05/27/2016 14:00 16:57 ^U220 EPA 8270D110 1.0022038ug/kg<110 6/2/16 RPNNitrobenzene 05/27/2016 14:00 16:57 ^U370 EPA 8270D110 1.00370110ug/kg<440 6/2/16 RPNPentachlorophenol 05/27/2016 14:00 16:57 ^U1800 EPA 8270D550 1.001800440ug/kg142 6/2/16 RPNPhenanthrene 05/27/2016 14:00 16:57 ^J220 EPA 8270D110 1.0022047ug/kg<290 6/2/16 RPNPhenol 05/27/2016 14:00 16:57 ^U1100 EPA 8270D550 1.001100290ug/kg194 6/2/16 RPNPyrene 05/27/2016 14:00 16:57 ^J220 EPA 8270D110 1.0022047% Recovery60 6/2/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 14:00 16:57 ^EPA 8270D1.0012535% Recovery65 6/2/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 14:00 16:57 ^EPA 8270D1.0010545% Recovery62 6/2/16 RPNSurr: 2-Fluorophenol 05/27/2016 14:00 16:57 ^EPA 8270D1.0010535% Recovery69 6/2/16 RPNSurr: Nitrobenzene-d5 05/27/2016 14:00 16:57 ^EPA 8270D1.0010035% Recovery60 6/2/16 RPNSurr: Phenol-d5 05/27/2016 14:00 16:57 ^EPA 8270D1.0010040% Recovery70 6/2/16 RPNSurr: Terphenyl-d14 05/27/2016 14:00 16:57 ^EPA 8270D1.0012530ug/kg<9.1 6/2/16 JJYAroclor-1016 05/27/2016 14:00 20:18U55 EPA 8082A37 1.00559.1ug/kg<13 6/2/16 JJYAroclor-1221 05/27/2016 14:00 20:18U55 EPA 8082A37 1.005513ug/kg<16 6/2/16 JJYAroclor-1232 05/27/2016 14:00 20:18U55 EPA 8082A37 1.005516ug/kg<13 6/2/16 JJYAroclor-1242 05/27/2016 14:00 20:18U55 EPA 8082A37 1.005513ug/kg51.1 6/2/16 JJYAroclor-1248 05/27/2016 14:00 20:18J55 EPA 8082A37 1.005513ug/kg73.1 6/2/16 JJYAroclor-1254 05/27/2016 14:00 20:1855 EPA 8082A37 1.005516ug/kg25.6 P 6/2/16 JJYAroclor-1260 05/27/2016 14:00 20:18J55 EPA 8082A37 1.005511ug/kg<13 6/2/16 JJYAroclor-1262 05/27/2016 14:00 20:18U55 EPA 8082A37 1.005513ug/kg<9.1 6/2/16 JJYAroclor-1268 05/27/2016 14:00 20:18U55 EPA 8082A37 1.00559.1% Recovery100 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 14:00 20:18 EPA 8082A1.0013554% Recovery84 6/2/16 JJYSurr: DCBP 05/27/2016 14:00 20:18 EPA 8082A1.0014154

Sub Lab Results

ATTACHED 6/15/16 SUBHerbicides 00:00 SW81511.00

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 30 of 176

Page 339: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 30 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727950

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1515

Analyte

Sample Description: GL-SW-03-052316

DODLOD

Client Sample #:

Inorganic Results

S.U.8.50 6/1/16 SAWpH 14:20 ^0.1 EPA 9040C0.1 1.000.10.1

Metals Results

ug/L19.8 5/28/16 NAHTotal Aluminum 05/26/2016 11:00 02:18 ^J36 EPA 6010C18 1.00366.0ug/L<2.0 5/28/16 NAHTotal Antimony 05/26/2016 11:00 02:18 ^U12 EPA 6010C6.0 1.00122.0ug/L<4.0 5/28/16 NAHTotal Arsenic 05/26/2016 11:00 02:18 ^U24 EPA 6010C12 1.00244.0ug/L59.3 5/28/16 NAHTotal Barium 05/26/2016 11:00 02:18 ^1.8 EPA 6010C0.90 1.001.80.29ug/L<0.10 5/28/16 NAHTotal Beryllium 05/26/2016 11:00 02:18 ^U0.60 EPA 6010C0.30 1.000.600.10ug/L<0.30 5/28/16 NAHTotal Cadmium 05/26/2016 11:00 02:18 ^U2.0 EPA 6010C1.0 1.002.00.30ug/L56400 5/28/16 NAHTotal Calcium 05/26/2016 11:00 02:18 ^100 EPA 6010C50 1.0010017ug/L<0.60 5/28/16 NAHTotal Chromium 05/26/2016 11:00 02:18 ^U4.0 EPA 6010C2.0 1.004.00.60ug/L<0.70 5/28/16 NAHTotal Cobalt 05/26/2016 11:00 02:18 ^U4.0 EPA 6010C2.0 1.004.00.70ug/L<1.2 5/28/16 NAHTotal Copper 05/26/2016 11:00 02:18 ^U7.0 EPA 6010C3.5 1.007.01.2ug/L415 5/28/16 NAHTotal Iron 05/26/2016 11:00 02:18 ^100 EPA 6010C50 1.0010016ug/L<1.4 5/28/16 NAHTotal Lead 05/26/2016 11:00 02:18 ^U4.0 EPA 6010C2.0 1.004.01.4ug/L27500 5/28/16 NAHTotal Magnesium 05/26/2016 11:00 02:18 ^40 EPA 6010C20 1.00406.0ug/L427 5/28/16 NAHTotal Manganese 05/26/2016 11:00 02:18 ^4.0 EPA 6010C2.0 1.004.00.70ug/L1.4 5/28/16 NAHTotal Nickel 05/26/2016 11:00 02:18 ^J6.0 EPA 6010C3.0 1.006.01.0ug/L<2.2 5/28/16 NAHTotal Selenium 05/26/2016 11:00 02:18 ^U13 EPA 6010C6.5 1.00132.2ug/L<0.70 5/28/16 NAHTotal Silver 05/26/2016 11:00 02:18 ^U4.0 EPA 6010C2.0 1.004.00.70ug/L<2.5 5/28/16 NAHTotal Thallium 05/26/2016 11:00 02:18 ^U15 EPA 6010C7.5 1.00152.5ug/L<0.80 5/28/16 NAHTotal Vanadium 05/26/2016 11:00 02:18 ^U5.0 EPA 6010C2.5 1.005.00.80ug/L11.0 B 5/28/16 NAHTotal Zinc 05/26/2016 11:00 02:18 ^10 EPA 6010C5.0 1.00101.6ug/L6220 5/27/16 MDSTotal Potassium 05/26/2016 11:00 13:21 ^500 EPA 6010C250 1.0050090ug/L4590 5/27/16 MDSTotal Sodium 05/26/2016 11:00 13:21 ^600 EPA 6010C300 1.00600100ug/L<0.030 5/31/16 LJFTotal Mercury 05/27/2016 09:30 08:53 ^U0.12 EPA 7470A0.060 1.000.120.030

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 31 of 176

Page 340: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 31 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727950

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1515

Analyte

Sample Description: GL-SW-03-052316

DODLOD

Client Sample #:

Organic Results

ug/L<0.21 5/31/16 AGK1,1,1-Trichloroethane 14:55 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.19 5/31/16 AGK1,1,2,2-Tetrachloroethane 14:55 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGK1,1,2-Trichloroethane 14:55 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.20 5/31/16 AGK1,1-Dichloroethane 14:55 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.24 5/31/16 AGK1,1-Dichloroethene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.30 5/31/16 AGK1,2,3-Trichlorobenzene 14:55 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.30 5/31/16 AGK1,2,4-Trichlorobenzene 14:55 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.40 5/31/16 AGK1,2-Dibromo-3-chloropropane 14:55 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.16 5/31/16 AGK1,2-Dibromoethane 14:55 ^U0.50 EPA 8260C0.25 1.000.500.16ug/L<0.23 5/31/16 AGK1,2-Dichlorobenzene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.30 5/31/16 AGK1,2-Dichloroethane 14:55 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGK1,2-Dichloropropane 14:55 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.26 5/31/16 AGK1,3-Dichlorobenzene 14:55 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.21 5/31/16 AGK1,4-Dichloro-2-butene 14:55U0.50 EPA 8260C0.25 1.000.500.21ug/L<5.0 Z,Q 5/31/16 AGK1,4-Dioxane 14:55U25 EPA 8260C13 1.00255.0ug/L<0.50 5/31/16 AGK112Trichloro122trifluoroethane 14:55U1.0 EPA 8260C0.50 1.001.00.50ug/L<2.4 5/31/16 AGK2-Butanone 14:55 ^U5.0 EPA 8260C2.5 1.005.02.4ug/L<4.0 5/31/16 AGK2-Hexanone 14:55 ^U10 EPA 8260C5.0 1.00104.0ug/L<3.0 5/31/16 AGK4-Methyl-2-pentanone 14:55 ^U10 EPA 8260C5.0 1.00103.0ug/L<5.0 5/31/16 AGKAcetone 14:55 ^U10 EPA 8260C5.0 1.00105.0ug/L<0.19 5/31/16 AGKBenzene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.19 5/31/16 AGKBromochloromethane 14:55 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.20 5/31/16 AGKBromodichloromethane 14:55 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.22 5/31/16 AGKBromoform 14:55 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.50 5/31/16 AGKBromomethane 14:55 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.50 5/31/16 AGKCarbon disulfide 14:55 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.23 5/31/16 AGKCarbon tetrachloride 14:55 ^U0.50 EPA 8260C0.25 1.000.500.23

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 32 of 176

Page 341: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 32 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727950

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1515

Analyte

Sample Description: GL-SW-03-052316

DODLOD

Client Sample #:

ug/L<0.24 5/31/16 AGKChlorobenzene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.40 5/31/16 AGKChloroethane 14:55 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.15 5/31/16 AGKChloroform 14:55 ^U0.50 EPA 8260C0.25 1.000.500.15ug/L<0.40 5/31/16 AGKChloromethane 14:55 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.25 5/31/16 AGKcis-1,2-Dichloroethene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKcis-1,3-Dichloropropene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.28 5/31/16 AGKCyclohexane 14:55U1.0 EPA 8260C0.50 1.001.00.28ug/L<0.19 5/31/16 AGKDibromochloromethane 14:55 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGKDichlorodifluoromethane 14:55 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.22 5/31/16 AGKEthylbenzene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.18 5/31/16 AGKIsopropylbenzene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.18ug/L<0.50 5/31/16 AGKm & p-Xylene 14:55 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.30 5/31/16 AGKMethyl acetate 14:55U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.29 5/31/16 AGKMethyl tert-butyl ether 14:55 ^U1.0 EPA 8260C0.50 1.001.00.29ug/L<0.23 5/31/16 AGKMethylcyclohexane 14:55U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.40 5/31/16 AGKMethylene chloride 14:55 ^U2.0 EPA 8260C0.50 1.002.00.40ug/L<0.24 5/31/16 AGKo-Xylene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.20 5/31/16 AGKStyrene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.30 5/31/16 AGKTetrachloroethene 14:55 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGKToluene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.25 5/31/16 AGKtrans-1,2-Dichloroethene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKtrans-1,3-Dichloropropene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.21 5/31/16 AGKTrichloroethene 14:55 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.20 5/31/16 AGKTrichlorofluoromethane 14:55 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.18 5/31/16 AGKVinyl chloride 14:55 ^U0.50 EPA 8260C0.25 1.000.500.18% Recovery105 5/31/16 AGK1,2 Dichloroethane-d4 14:55 EPA 8260C1.0012070% Recovery98 5/31/16 AGKBromofluorobenzene 14:55 EPA 8260C1.0012075% Recovery102 5/31/16 AGKd8-Toluene 14:55 EPA 8260C1.0012085

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 33 of 176

Page 342: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 33 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727950

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1515

Analyte

Sample Description: GL-SW-03-052316

DODLOD

Client Sample #:

% Recovery102 5/31/16 AGKDibromofluoromethane 14:55 EPA 8260C1.0011585ug/L<0.0063 6/7/16 JJY4,4'-DDD 05/27/2016 11:00 00:20 ^U0.025 EPA 8081B0.011 1.000.0250.0063ug/L<0.0063 6/7/16 JJY4,4'-DDE 05/27/2016 11:00 00:20 ^U0.042 EPA 8081B0.011 1.000.0420.0063ug/L<0.0074 6/7/16 JJY4,4'-DDT 05/27/2016 11:00 00:20 ^U0.025 EPA 8081B0.011 1.000.0250.0074ug/L<0.0063 6/7/16 JJYAldrin 05/27/2016 11:00 00:20 ^U0.025 EPA 8081B0.011 1.000.0250.0063ug/L0.0063 6/7/16 JJYalpha-BHC 05/27/2016 11:00 00:20 ^J0.025 EPA 8081B0.011 1.000.0250.0053ug/L<0.0095 6/7/16 JJYalpha-Chlordane 05/27/2016 11:00 00:20 ^U0.042 EPA 8081B0.011 1.000.0420.0095ug/L<0.0095 6/7/16 JJYbeta-BHC 05/27/2016 11:00 00:20 ^U0.042 EPA 8081B0.011 1.000.0420.0095ug/L<0.11 6/7/16 JJYChlordane (Technical) 05/27/2016 11:00 00:20 ^U0.63 EPA 8081B0.21 1.000.630.11ug/L0.011 P 6/7/16 JJYdelta-BHC 05/27/2016 11:00 00:20 ^J0.025 EPA 8081B0.011 1.000.0250.0053ug/L<0.0063 6/7/16 JJYDieldrin 05/27/2016 11:00 00:20 ^U0.025 EPA 8081B0.011 1.000.0250.0063ug/L<0.0095 Q 6/7/16 JJYEndosulfan I 05/27/2016 11:00 00:20 ^U0.042 EPA 8081B0.011 1.000.0420.0095ug/L<0.0074 6/7/16 JJYEndosulfan II 05/27/2016 11:00 00:20 ^U0.025 EPA 8081B0.011 1.000.0250.0074ug/L<0.0063 6/7/16 JJYEndosulfan sulfate 05/27/2016 11:00 00:20 ^U0.025 EPA 8081B0.011 1.000.0250.0063ug/L<0.0063 6/7/16 JJYEndrin 05/27/2016 11:00 00:20 ^U0.025 EPA 8081B0.011 1.000.0250.0063ug/L<0.0095 6/7/16 JJYEndrin aldehyde 05/27/2016 11:00 00:20 ^U0.042 EPA 8081B0.011 1.000.0420.0095ug/L<0.0074 6/7/16 JJYEndrin ketone 05/27/2016 11:00 00:20 ^U0.025 EPA 8081B0.011 1.000.0250.0074ug/L<0.0074 6/7/16 JJYgamma-Chlordane 05/27/2016 11:00 00:20 ^U0.025 EPA 8081B0.011 1.000.0250.0074ug/L0.0063 6/7/16 JJYHeptachlor 05/27/2016 11:00 00:20 ^J0.025 EPA 8081B0.011 1.000.0250.0063ug/L<0.0074 6/7/16 JJYHeptachlor epoxide 05/27/2016 11:00 00:20 ^U0.025 EPA 8081B0.011 1.000.0250.0074ug/L<0.0074 6/7/16 JJYLindane 05/27/2016 11:00 00:20 ^U0.025 EPA 8081B0.011 1.000.0250.0074ug/L<0.0063 6/7/16 JJYMethoxychlor 05/27/2016 11:00 00:20 ^U0.042 EPA 8081B0.011 1.000.0420.0063ug/L<0.19 6/7/16 JJYToxaphene 05/27/2016 11:00 00:20 ^U0.63 EPA 8081B0.21 1.000.630.19% Recovery74 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 11:00 00:20 EPA 8081B1.0014025% Recovery77 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 11:00 00:20 EPA 8081B1.0013530ug/L<0.17 6/1/16 RPN1,1'-Biphenyl 05/27/2016 15:00 19:00U1.1 EPA 8270D0.44 1.001.10.17ug/L<0.19 6/1/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 15:00 19:00U1.1 EPA 8270D0.44 1.001.10.19ug/L<1.2 6/1/16 RPN2,4,5-Trichlorophenol 05/27/2016 15:00 19:00 ^U5.6 EPA 8270D2.2 1.005.61.2

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 34 of 176

Page 343: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 34 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727950

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1515

Analyte

Sample Description: GL-SW-03-052316

DODLOD

Client Sample #:

ug/L<1.1 6/1/16 RPN2,4,6-Trichlorophenol 05/27/2016 15:00 19:00 ^U5.6 EPA 8270D2.2 1.005.61.1ug/L<1.1 6/1/16 RPN2,4-Dichlorophenol 05/27/2016 15:00 19:00 ^U5.6 EPA 8270D2.2 1.005.61.1ug/L<0.91 6/1/16 RPN2,4-Dimethylphenol 05/27/2016 15:00 19:00 ^U5.6 EPA 8270D2.2 1.005.60.91ug/L<1.7 6/1/16 RPN2,4-Dinitrophenol 05/27/2016 15:00 19:00 ^U11 EPA 8270D5.6 1.00111.7ug/L<0.23 6/1/16 RPN2,4-Dinitrotoluene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.23ug/L<0.31 6/1/16 RPN2,6-Dinitrotoluene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.31ug/L<0.20 6/1/16 RPN2-Chloronaphthalene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.20ug/L<0.97 6/1/16 RPN2-Chlorophenol 05/27/2016 15:00 19:00 ^U5.6 EPA 8270D2.2 1.005.60.97ug/L<0.19 6/1/16 RPN2-Methylnaphthalene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.19ug/L<0.96 6/1/16 RPN2-Methylphenol 05/27/2016 15:00 19:00 ^U5.6 EPA 8270D2.2 1.005.60.96ug/L<0.24 6/1/16 RPN2-Nitroaniline 05/27/2016 15:00 19:00 ^U2.2 EPA 8270D0.44 1.002.20.24ug/L<1.0 6/1/16 RPN2-Nitrophenol 05/27/2016 15:00 19:00 ^U5.6 EPA 8270D2.2 1.005.61.0ug/L<1.6 6/1/16 RPN3 & 4-Methylphenol 05/27/2016 15:00 19:00 ^U10 EPA 8270D4.0 1.00101.6ug/L<0.73 6/1/16 RPN3,3'-Dichlorobenzidine 05/27/2016 15:00 19:00 ^U2.8 EPA 8270D1.1 1.002.80.73ug/L<0.29 6/1/16 RPN3-Nitroaniline 05/27/2016 15:00 19:00 ^U2.2 EPA 8270D1.1 1.002.20.29ug/L<1.8 6/1/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 15:00 19:00 ^U11 EPA 8270D2.2 1.00111.8ug/L<0.22 6/1/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 15:00 19:00 ^U2.2 EPA 8270D0.44 1.002.20.22ug/L<0.89 6/1/16 RPN4-Chloro-3-methylphenol 05/27/2016 15:00 19:00 ^U5.6 EPA 8270D2.2 1.005.60.89ug/L<0.13 6/1/16 RPN4-Chloroaniline 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.13ug/L<0.20 6/1/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.20ug/L<0.17 6/1/16 RPN4-Nitroaniline 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.17ug/L<1.2 6/1/16 RPN4-Nitrophenol 05/27/2016 15:00 19:00 ^U11 EPA 8270D5.6 1.00111.2ug/L<0.20 6/1/16 RPNAcenaphthene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.20ug/L<0.19 6/1/16 RPNAcenaphthylene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.19ug/L<0.30 6/1/16 RPNAcetophenone 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.30ug/L<0.12 6/1/16 RPNAnthracene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.12ug/L<0.29 6/1/16 RPNAtrazine 05/27/2016 15:00 19:00U1.1 EPA 8270D0.44 1.001.10.29ug/L<0.28 6/1/16 RPNBenzaldehyde 05/27/2016 15:00 19:00U1.1 EPA 8270D0.44 1.001.10.28

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 35 of 176

Page 344: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 35 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727950

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1515

Analyte

Sample Description: GL-SW-03-052316

DODLOD

Client Sample #:

ug/L<0.13 6/1/16 RPNBenzo(a)anthracene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.13ug/L<0.16 6/1/16 RPNBenzo(a)pyrene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.16ug/L<0.19 6/1/16 RPNBenzo(b)fluoranthene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.19ug/L<0.23 6/1/16 RPNBenzo(g,h,i)perylene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.23ug/L<0.22 6/1/16 RPNBenzo(k)fluoranthene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.22ug/L<0.21 6/1/16 RPNBis(2-chloroethoxy)methane 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.21ug/L<0.23 6/1/16 RPNBis(2-chloroethyl)ether 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.23ug/L<0.24 6/1/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.24ug/L<0.49 6/1/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 15:00 19:00 ^U2.2 EPA 8270D1.1 1.002.20.49ug/L<0.52 6/1/16 RPNButylbenzylphthalate 05/27/2016 15:00 19:00 ^U2.2 EPA 8270D1.1 1.002.20.52ug/L<0.21 6/1/16 RPNCaprolactam 05/27/2016 15:00 19:00U2.2 EPA 8270D1.1 1.002.20.21ug/L<0.13 6/1/16 RPNCarbazole 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.13ug/L<0.18 6/1/16 RPNChrysene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.18ug/L<0.74 6/1/16 RPNDi-n-butylphthalate 05/27/2016 15:00 19:00 ^U4.4 EPA 8270D2.2 1.004.40.74ug/L<0.54 6/1/16 RPNDi-n-octylphthalate 05/27/2016 15:00 19:00 ^U2.2 EPA 8270D1.1 1.002.20.54ug/L<0.19 6/1/16 RPNDibenzo(a,h)anthracene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.19ug/L<0.21 6/1/16 RPNDibenzofuran 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.21ug/L<0.50 6/1/16 RPNDiethylphthalate 05/27/2016 15:00 19:00 ^U2.2 EPA 8270D1.1 1.002.20.50ug/L<0.60 6/1/16 RPNDimethylphthalate 05/27/2016 15:00 19:00 ^U2.2 EPA 8270D1.1 1.002.20.60ug/L<0.14 6/1/16 RPNFluoranthene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.14ug/L<0.21 6/1/16 RPNFluorene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.21ug/L<0.30 6/1/16 RPNHexachlorobenzene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.30ug/L<0.20 6/1/16 RPNHexachlorobutadiene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.20ug/L<0.29 6/1/16 RPNHexachlorocyclopentadiene 05/27/2016 15:00 19:00 ^U2.2 EPA 8270D1.1 1.002.20.29ug/L<0.24 6/1/16 RPNHexachloroethane 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.24ug/L<0.20 6/1/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.20ug/L<0.20 6/1/16 RPNIsophorone 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.20ug/L<0.20 6/1/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.20

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 36 of 176

Page 345: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 36 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727950

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1515

Analyte

Sample Description: GL-SW-03-052316

DODLOD

Client Sample #:

ug/L<0.40 6/1/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 15:00 19:00 ^U2.2 EPA 8270D0.89 1.002.20.40ug/L<0.20 6/1/16 RPNNaphthalene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.20ug/L<0.18 6/1/16 RPNNitrobenzene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.18ug/L<1.2 6/1/16 RPNPentachlorophenol 05/27/2016 15:00 19:00 ^U5.6 EPA 8270D2.2 1.005.61.2ug/L<0.33 6/1/16 RPNPhenanthrene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.33ug/L<0.53 6/1/16 RPNPhenol 05/27/2016 15:00 19:00 ^U5.6 EPA 8270D2.2 1.005.60.53ug/L<0.14 6/1/16 RPNPyrene 05/27/2016 15:00 19:00 ^U1.1 EPA 8270D0.44 1.001.10.14% Recovery64 6/1/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 15:00 19:00 ^EPA 8270D1.0012540% Recovery50 6/1/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 15:00 19:00 ^EPA 8270D1.0011050% Recovery31 6/1/16 RPNSurr: 2-Fluorophenol 05/27/2016 15:00 19:00 ^EPA 8270D1.0011020% Recovery54 6/1/16 RPNSurr: Nitrobenzene-d5 05/27/2016 15:00 19:00 ^EPA 8270D1.0011040% Recovery22 6/1/16 RPNSurr: Phenol-d5 05/27/2016 15:00 19:00 ^EPA 8270D1.0011510% Recovery66 6/1/16 RPNSurr: Terphenyl-d14 05/27/2016 15:00 19:00 ^EPA 8270D1.0013550ug/L<0.12 6/2/16 JJYAroclor-1016 05/27/2016 11:00 15:28U1.1 EPA 8082A0.32 1.001.10.12ug/L<0.089 6/2/16 JJYAroclor-1221 05/27/2016 11:00 15:28U1.1 EPA 8082A0.32 1.001.10.089ug/L<0.15 6/2/16 JJYAroclor-1232 05/27/2016 11:00 15:28U1.1 EPA 8082A0.32 1.001.10.15ug/L<0.10 6/2/16 JJYAroclor-1242 05/27/2016 11:00 15:28U1.1 EPA 8082A0.32 1.001.10.10ug/L<0.093 6/2/16 JJYAroclor-1248 05/27/2016 11:00 15:28U1.1 EPA 8082A0.32 1.001.10.093ug/L<0.099 6/2/16 JJYAroclor-1254 05/27/2016 11:00 15:28U1.1 EPA 8082A0.32 1.001.10.099ug/L<0.10 6/2/16 JJYAroclor-1260 05/27/2016 11:00 15:28U1.1 EPA 8082A0.32 1.001.10.10ug/L<0.29 6/2/16 JJYAroclor-1262 05/27/2016 11:00 15:28U1.1 EPA 8082A0.32 1.001.10.29ug/L<0.059 6/2/16 JJYAroclor-1268 05/27/2016 11:00 15:28U1.1 EPA 8082A0.32 1.001.10.059% Recovery87 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 11:00 15:28 EPA 8082A1.0013738% Recovery97 6/2/16 JJYSurr: DCBP 05/27/2016 11:00 15:28 EPA 8082A1.0014723

Sub Lab Results

ATTACHED 6/15/16 SUBHerbicides 00:00 SW81511.00

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 37 of 176

Page 346: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 37 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727951

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1520

Analyte

Sample Description: GL-SD-03-052316

DODLOD

Client Sample #:

Inorganic Results

%52.6 5/26/16 ABSSolids, Percent 10:220.1 EPA 8000C0.1 1.000.10.1mg/kg41200 6/1/16 JJFTotal Organic Carbon 12:12 ^3400 L-Kahn/9060A1700 1.003400570

Metals Results

mg/kg8880 5/27/16 NAHAluminum 05/26/2016 07:00 21:13 ^0.46 EPA 6010C0.23 1.000.460.077mg/kg0.50 5/27/16 NAHAntimony 05/26/2016 07:00 21:13 ^J1.5 EPA 6010C0.77 1.001.50.25mg/kg5.0 5/27/16 NAHArsenic 05/26/2016 07:00 21:13 ^1.5 EPA 6010C0.77 1.001.50.25mg/kg70.4 5/27/16 NAHBarium 05/26/2016 07:00 21:13 ^0.097 EPA 6010C0.048 1.000.0970.017mg/kg0.21 5/27/16 NAHBeryllium 05/26/2016 07:00 21:13 ^0.077 EPA 6010C0.023 1.000.0770.0077mg/kg0.43 5/27/16 NAHCadmium 05/26/2016 07:00 21:13 ^0.077 EPA 6010C0.039 1.000.0770.012mg/kg51600 6/2/16 NAHCalcium 05/26/2016 07:00 19:21 ^27 EPA 6010C14 10.00274.6mg/kg15.2 5/27/16 NAHChromium 05/26/2016 07:00 21:13 ^0.27 EPA 6010C0.14 1.000.270.044mg/kg9.1 5/27/16 NAHCobalt 05/26/2016 07:00 21:13 ^0.46 EPA 6010C0.23 1.000.460.077mg/kg24.3 5/27/16 NAHCopper 05/26/2016 07:00 21:13 ^0.77 EPA 6010C0.39 1.000.770.14mg/kg16200 5/27/16 NAHIron 05/26/2016 07:00 21:13 ^3.5 EPA 6010C1.7 1.003.50.58mg/kg28.6 5/27/16 NAHLead 05/26/2016 07:00 21:13 ^0.48 EPA 6010C0.24 1.000.480.077mg/kg14300 5/27/16 NAHMagnesium 05/26/2016 07:00 21:13 ^1.5 EPA 6010C0.77 1.001.50.27mg/kg354 5/27/16 NAHManganese 05/26/2016 07:00 21:13 ^0.29 EPA 6010C0.14 1.000.290.048mg/kg23.4 5/27/16 NAHNickel 05/26/2016 07:00 21:13 ^0.23 EPA 6010C0.12 1.000.230.041mg/kg1.6 5/27/16 NAHSelenium 05/26/2016 07:00 21:13 ^0.77 EPA 6010C0.39 1.000.770.12mg/kg<0.033 5/27/16 NAHSilver 05/26/2016 07:00 21:13 ^U0.19 EPA 6010C0.097 1.000.190.033mg/kg0.30 5/27/16 NAHThallium 05/26/2016 07:00 21:13 ^J0.93 EPA 6010C0.46 1.000.930.15mg/kg19.9 5/27/16 NAHVanadium 05/26/2016 07:00 21:13 ^0.15 EPA 6010C0.077 1.000.150.023mg/kg98.9 5/27/16 NAHZinc 05/26/2016 07:00 21:13 ^0.58 EPA 6010C0.29 1.000.580.097mg/kg1460 5/27/16 MDSPotassium 05/26/2016 07:00 08:14 ^130 EPA 6010C64 1.0013021mg/kg116 5/27/16 MDSSodium 05/26/2016 07:00 08:14 ^46 EPA 6010C23 1.00467.7mg/kg0.048 5/31/16 LJFMercury 05/27/2016 12:00 14:55 ^0.017 EPA 7471B0.0086 1.000.0170.0043

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 38 of 176

Page 347: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 38 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727951

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1520

Analyte

Sample Description: GL-SD-03-052316

DODLOD

Client Sample #:

Organic ResultsVOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<16 5/29/16 RLD1,1,1-Trichloroethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008116ug/kg<9.7 5/29/16 RLD1,1,2,2-Tetrachloroethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.00819.7ug/kg<13 5/29/16 RLD1,1,2-Trichloroethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008113ug/kg<18 5/29/16 RLD1,1-Dichloroethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008118ug/kg<26 5/29/16 RLD1,1-Dichloroethene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008126ug/kg<13 5/29/16 RLD1,2,3-Trichlorobenzene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008113ug/kg<15 5/29/16 RLD1,2,4-Trichlorobenzene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008115ug/kg<19 5/29/16 RLD1,2-Dibromo-3-chloropropane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008119ug/kg<16 5/29/16 RLD1,2-Dibromoethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008116ug/kg<15 5/29/16 RLD1,2-Dichlorobenzene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008115ug/kg<19 5/29/16 RLD1,2-Dichloroethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008119ug/kg<11 5/29/16 RLD1,2-Dichloropropane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008111ug/kg<13 5/29/16 RLD1,3-Dichlorobenzene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008113ug/kg<15 5/29/16 RLD1,4-Dichloro-2-butene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008115ug/kg<650 5/29/16 RLD1,4-Dioxane 05/25/2016 16:20 12:47 ^U8100 EPA 8260C1600 1.008100650ug/kg<32 5/29/16 RLD112Trichloro122trifluoroethane 05/25/2016 16:20 12:47 ^U160 EPA 8260C65 1.0016032ug/kg<160 5/29/16 RLD2-Butanone 05/25/2016 16:20 12:47 ^U810 EPA 8260C320 1.00810160ug/kg<110 5/29/16 RLD2-Hexanone 05/25/2016 16:20 12:47 ^U810 EPA 8260C320 1.00810110ug/kg<130 5/29/16 RLD4-Methyl-2-pentanone 05/25/2016 16:20 12:47 ^U810 EPA 8260C320 1.00810130ug/kg225 5/29/16 RLDAcetone 05/25/2016 16:20 12:47 ^J810 EPA 8260C320 1.00810100ug/kg<8.1 5/29/16 RLDBenzene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.00818.1ug/kg<13 5/29/16 RLDBromochloromethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008113ug/kg<15 5/29/16 RLDBromodichloromethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008115ug/kg<9.7 5/29/16 RLDBromoform 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.00819.7

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 39 of 176

Page 348: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 39 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727951

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1520

Analyte

Sample Description: GL-SD-03-052316

DODLOD

Client Sample #:

VOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<49 5/29/16 RLDBromomethane 05/25/2016 16:20 12:47 ^U160 EPA 8260C81 1.0016049ug/kg<24 5/29/16 RLDCarbon disulfide 05/25/2016 16:20 12:47 ^U160 EPA 8260C65 1.0016024ug/kg<18 5/29/16 RLDCarbon tetrachloride 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008118ug/kg<13 5/29/16 RLDChlorobenzene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008113ug/kg<31 5/29/16 RLDChloroethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008131ug/kg<15 5/29/16 RLDChloroform 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008115ug/kg<41 5/29/16 RLDChloromethane 05/25/2016 16:20 12:47 ^U160 EPA 8260C81 1.0016041ug/kg<16 5/29/16 RLDcis-1,2-Dichloroethene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008116ug/kg<16 5/29/16 RLDcis-1,3-Dichloropropene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008116ug/kg<19 5/29/16 RLDCyclohexane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008119ug/kg<13 5/29/16 RLDDibromochloromethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008113ug/kg<21 5/29/16 RLDDichlorodifluoromethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008121ug/kg<13 5/29/16 RLDEthylbenzene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008113ug/kg<13 5/29/16 RLDIsopropylbenzene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008113ug/kg<29 5/29/16 RLDm & p-Xylene 05/25/2016 16:20 12:47 ^U160 EPA 8260C65 1.0016029ug/kg787 5/29/16 RLDMethyl acetate 05/25/2016 16:20 12:47 ^81 EPA 8260C32 1.008119ug/kg<45 5/29/16 RLDMethyl tert-butyl ether 05/25/2016 16:20 12:47 ^U160 EPA 8260C81 1.0016045ug/kg<15 5/29/16 RLDMethylcyclohexane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008115ug/kg<65 5/29/16 RLDMethylene chloride 05/25/2016 16:20 12:47 ^U160 EPA 8260C81 1.0016065ug/kg<13 5/29/16 RLDo-Xylene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008113ug/kg<9.7 5/29/16 RLDStyrene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.00819.7ug/kg<13 5/29/16 RLDTetrachloroethene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008113ug/kg<11 5/29/16 RLDToluene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008111ug/kg<18 5/29/16 RLDtrans-1,2-Dichloroethene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008118ug/kg<11 5/29/16 RLDtrans-1,3-Dichloropropene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008111ug/kg<16 5/29/16 RLDTrichloroethene 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008116

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 40 of 176

Page 349: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 40 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727951

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1520

Analyte

Sample Description: GL-SD-03-052316

DODLOD

Client Sample #:

VOC's by 8260 QSM Comments: Suspected acetone laboratory contamination.

ug/kg<21 5/29/16 RLDTrichlorofluoromethane 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008121ug/kg<23 5/29/16 RLDVinyl chloride 05/25/2016 16:20 12:47 ^U81 EPA 8260C32 1.008123% Recovery100 5/29/16 RLD1,2 Dichloroethane-d4 05/25/2016 16:20 12:47 EPA 8260C1.0011780% Recovery101 5/29/16 RLDBromofluorobenzene 05/25/2016 16:20 12:47 EPA 8260C1.0012085% Recovery100 5/29/16 RLDd8-Toluene 05/25/2016 16:20 12:47 EPA 8260C1.0011585% Recovery100 5/29/16 RLDDibromofluoromethane 05/25/2016 16:20 12:47 EPA 8260C1.0011879ug/kg29.4 P 6/7/16 JJY4,4'-DDD 05/27/2016 14:00 16:38 ^3.8 EPA 8081B1.9 1.003.80.57ug/kg4.01 P 6/7/16 JJY4,4'-DDE 05/27/2016 14:00 16:38 ^3.8 EPA 8081B1.9 1.003.80.57ug/kg2.87 P 6/7/16 JJY4,4'-DDT 05/27/2016 14:00 16:38 ^J3.8 EPA 8081B1.9 1.003.80.96ug/kg<0.96 6/7/16 JJYAldrin 05/27/2016 14:00 16:38 ^U3.8 EPA 8081B1.9 1.003.80.96ug/kg41.5 P 6/7/16 JJYalpha-BHC 05/27/2016 14:00 16:38 ^7.6 EPA 8081B3.8 1.007.61.1ug/kg<0.57 Q 6/7/16 JJYalpha-Chlordane 05/27/2016 14:00 16:38 ^U3.8 EPA 8081B1.9 1.003.80.57ug/kg<1.1 6/7/16 JJYbeta-BHC 05/27/2016 14:00 16:38 ^U7.6 EPA 8081B3.8 1.007.61.1ug/kg<9.6 6/7/16 JJYChlordane (Technical) 05/27/2016 14:00 16:38 ^U76 EPA 8081B38 1.00769.6ug/kg5.16 P 6/7/16 JJYdelta-BHC 05/27/2016 14:00 16:38 ^3.8 EPA 8081B1.9 1.003.80.57ug/kg<0.57 6/7/16 JJYDieldrin 05/27/2016 14:00 16:38 ^U3.8 EPA 8081B1.9 1.003.80.57ug/kg<1.3 6/7/16 JJYEndosulfan I 05/27/2016 14:00 16:38 ^U7.6 EPA 8081B3.8 1.007.61.3ug/kg<0.57 6/7/16 JJYEndosulfan II 05/27/2016 14:00 16:38 ^U3.8 EPA 8081B1.9 1.003.80.57ug/kg<1.7 6/7/16 JJYEndosulfan sulfate 05/27/2016 14:00 16:38 ^U7.6 EPA 8081B3.8 1.007.61.7ug/kg<0.76 6/7/16 JJYEndrin 05/27/2016 14:00 16:38 ^U3.8 EPA 8081B1.9 1.003.80.76ug/kg<2.1 6/7/16 JJYEndrin aldehyde 05/27/2016 14:00 16:38 ^U7.6 EPA 8081B3.8 1.007.62.1ug/kg<1.5 6/7/16 JJYEndrin ketone 05/27/2016 14:00 16:38 ^U7.6 EPA 8081B3.8 1.007.61.5ug/kg<0.57 6/7/16 JJYgamma-Chlordane 05/27/2016 14:00 16:38 ^U3.8 EPA 8081B1.9 1.003.80.57ug/kg<0.76 6/7/16 JJYHeptachlor 05/27/2016 14:00 16:38 ^U3.8 EPA 8081B1.9 1.003.80.76ug/kg<0.96 6/7/16 JJYHeptachlor epoxide 05/27/2016 14:00 16:38 ^U3.8 EPA 8081B1.9 1.003.80.96ug/kg<0.96 6/7/16 JJYLindane 05/27/2016 14:00 16:38 ^U3.8 EPA 8081B1.9 1.003.80.96

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 41 of 176

Page 350: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 41 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727951

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1520

Analyte

Sample Description: GL-SD-03-052316

DODLOD

Client Sample #:

ug/kg<1.3 6/7/16 JJYMethoxychlor 05/27/2016 14:00 16:38 ^U7.6 EPA 8081B3.8 1.007.61.3ug/kg<17 6/7/16 JJYToxaphene 05/27/2016 14:00 16:38 ^U76 EPA 8081B38 1.007617% Recovery103 6/7/16 JJYSURR:2,4,5,6-CL4-m-xylene 05/27/2016 14:00 16:38 EPA 8081B1.0012570% Recovery57 6/7/16 JJYSURR:Decachlorobiphenyl 05/27/2016 14:00 16:38 EPA 8081B1.0013055ug/kg<27 6/2/16 RPN1,1'-Biphenyl 05/27/2016 14:00 16:35U230 EPA 8270D110 1.0023027ug/kg<42 6/2/16 RPN1,2,4,5-Tetrachlorobenzene 05/27/2016 14:00 16:35U230 EPA 8270D110 1.0023042ug/kg<250 6/2/16 RPN2,4,5-Trichlorophenol 05/27/2016 14:00 16:35 ^U1100 EPA 8270D570 1.001100250ug/kg<250 6/2/16 RPN2,4,6-Trichlorophenol 05/27/2016 14:00 16:35 ^U1100 EPA 8270D570 1.001100250ug/kg<230 6/2/16 RPN2,4-Dichlorophenol 05/27/2016 14:00 16:35 ^U1100 EPA 8270D570 1.001100230ug/kg<190 6/2/16 RPN2,4-Dimethylphenol 05/27/2016 14:00 16:35 ^U1100 EPA 8270D570 1.001100190ug/kg<510 6/2/16 RPN2,4-Dinitrophenol 05/27/2016 14:00 16:35 ^U1900 EPA 8270D1100 1.001900510ug/kg<46 6/2/16 RPN2,4-Dinitrotoluene 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023046ug/kg<46 6/2/16 RPN2,6-Dinitrotoluene 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023046ug/kg<44 6/2/16 RPN2-Chloronaphthalene 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023044ug/kg<650 6/2/16 RPN2-Chlorophenol 05/27/2016 14:00 16:35 ^U3800 EPA 8270D1100 1.003800650ug/kg49.6 6/2/16 RPN2-Methylnaphthalene 05/27/2016 14:00 16:35 ^J230 EPA 8270D110 1.0023048ug/kg<800 6/2/16 RPN2-Methylphenol 05/27/2016 14:00 16:35 ^U3800 EPA 8270D1100 1.003800800ug/kg<44 6/2/16 RPN2-Nitroaniline 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023044ug/kg<530 6/2/16 RPN2-Nitrophenol 05/27/2016 14:00 16:35 ^U1900 EPA 8270D570 1.001900530ug/kg<1200 6/2/16 RPN3 & 4-Methylphenol 05/27/2016 14:00 16:35 ^U6900 EPA 8270D2100 1.0069001200ug/kg<290 6/2/16 RPN3,3'-Dichlorobenzidine 05/27/2016 14:00 16:35 ^U950 EPA 8270D290 1.00950290ug/kg<42 6/2/16 RPN3-Nitroaniline 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023042ug/kg<510 6/2/16 RPN4,6-Dinitro-2-methylphenol 05/27/2016 14:00 16:35 ^U1900 EPA 8270D570 1.001900510ug/kg<48 6/2/16 RPN4-Bromophenyl-phenyl ether 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023048ug/kg<720 6/2/16 RPN4-Chloro-3-methylphenol 05/27/2016 14:00 16:35 ^U3800 EPA 8270D1100 1.003800720ug/kg<74 6/2/16 RPN4-Chloroaniline 05/27/2016 14:00 16:35 ^U380 EPA 8270D110 1.0038074ug/kg<50 6/2/16 RPN4-Chlorophenyl-phenyl ether 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023050ug/kg<57 6/2/16 RPN4-Nitroaniline 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023057

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 42 of 176

Page 351: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Page 42 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727951

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1520

Analyte

Sample Description: GL-SD-03-052316

DODLOD

Client Sample #:

ug/kg<760 6/2/16 RPN4-Nitrophenol 05/27/2016 14:00 16:35 ^U3800 EPA 8270D1100 1.003800760ug/kg<46 6/2/16 RPNAcenaphthene 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023046ug/kg<46 6/2/16 RPNAcenaphthylene 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023046ug/kg<140 6/2/16 RPNAcetophenone 05/27/2016 14:00 16:35 ^U760 EPA 8270D230 1.00760140ug/kg<46 6/2/16 RPNAnthracene 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023046ug/kg<27 6/2/16 RPNAtrazine 05/27/2016 14:00 16:35U230 EPA 8270D110 1.0023027ug/kg91.5 6/2/16 RPNBenzaldehyde 05/27/2016 14:00 16:35J230 EPA 8270D110 1.0023036ug/kg64.8 6/2/16 RPNBenzo(a)anthracene 05/27/2016 14:00 16:35 ^J230 EPA 8270D110 1.0023048ug/kg55.3 6/2/16 RPNBenzo(a)pyrene 05/27/2016 14:00 16:35 ^J230 EPA 8270D110 1.0023044ug/kg109 6/2/16 RPNBenzo(b)fluoranthene 05/27/2016 14:00 16:35 ^J230 EPA 8270D110 1.0023048ug/kg80.1 6/2/16 RPNBenzo(g,h,i)perylene 05/27/2016 14:00 16:35 ^J230 EPA 8270D110 1.0023042ug/kg<48 6/2/16 RPNBenzo(k)fluoranthene 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023048ug/kg<44 6/2/16 RPNBis(2-chloroethoxy)methane 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023044ug/kg<48 6/2/16 RPNBis(2-chloroethyl)ether 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023048ug/kg<57 6/2/16 RPNBis(2-chloroisopropyl)ether 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023057ug/kg282 6/2/16 RPNBis(2-ethylhexyl)phthalate 05/27/2016 14:00 16:35 ^J760 EPA 8270D230 1.00760170ug/kg<140 6/2/16 RPNButylbenzylphthalate 05/27/2016 14:00 16:35 ^U760 EPA 8270D230 1.00760140ug/kg<140 6/2/16 RPNCaprolactam 05/27/2016 14:00 16:35U760 EPA 8270D230 1.00760140ug/kg<53 6/2/16 RPNCarbazole 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023053ug/kg164 6/2/16 RPNChrysene 05/27/2016 14:00 16:35 ^J230 EPA 8270D110 1.0023048ug/kg233 6/2/16 RPNDi-n-butylphthalate 05/27/2016 14:00 16:35 ^J760 EPA 8270D230 1.00760150ug/kg<110 6/2/16 RPNDi-n-octylphthalate 05/27/2016 14:00 16:35 ^U380 EPA 8270D110 1.00380110ug/kg<42 6/2/16 RPNDibenzo(a,h)anthracene 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023042ug/kg<46 6/2/16 RPNDibenzofuran 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023046ug/kg<120 6/2/16 RPNDiethylphthalate 05/27/2016 14:00 16:35 ^U760 EPA 8270D230 1.00760120ug/kg<120 6/2/16 RPNDimethylphthalate 05/27/2016 14:00 16:35 ^U760 EPA 8270D230 1.00760120ug/kg107 6/2/16 RPNFluoranthene 05/27/2016 14:00 16:35 ^J230 EPA 8270D110 1.0023050ug/kg<48 6/2/16 RPNFluorene 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023048

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 43 of 176

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Page 43 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727951

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1520

Analyte

Sample Description: GL-SD-03-052316

DODLOD

Client Sample #:

ug/kg<53 6/2/16 RPNHexachlorobenzene 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023053ug/kg<120 6/2/16 RPNHexachlorobutadiene 05/27/2016 14:00 16:35 ^U760 EPA 8270D230 1.00760120ug/kg<99 Q 6/2/16 RPNHexachlorocyclopentadiene 05/27/2016 14:00 16:35 ^U380 EPA 8270D230 1.0038099ug/kg<63 6/2/16 RPNHexachloroethane 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023063ug/kg45.8 6/2/16 RPNIndeno(1,2,3-cd)pyrene 05/27/2016 14:00 16:35 ^J230 EPA 8270D110 1.0023044ug/kg<95 6/2/16 RPNIsophorone 05/27/2016 14:00 16:35 ^U380 EPA 8270D110 1.0038095ug/kg<130 6/2/16 RPNN-Nitroso-di-n-propylamine 05/27/2016 14:00 16:35 ^U760 EPA 8270D230 1.00760130ug/kg<95 6/2/16 RPNN-Nitrosodiphenylamine & Diphn 05/27/2016 14:00 16:35 ^U460 EPA 8270D230 1.0046095ug/kg<40 6/2/16 RPNNaphthalene 05/27/2016 14:00 16:35 ^U230 EPA 8270D110 1.0023040ug/kg<110 6/2/16 RPNNitrobenzene 05/27/2016 14:00 16:35 ^U380 EPA 8270D110 1.00380110ug/kg<460 6/2/16 RPNPentachlorophenol 05/27/2016 14:00 16:35 ^U1900 EPA 8270D570 1.001900460ug/kg101 6/2/16 RPNPhenanthrene 05/27/2016 14:00 16:35 ^J230 EPA 8270D110 1.0023050ug/kg<310 6/2/16 RPNPhenol 05/27/2016 14:00 16:35 ^U1100 EPA 8270D570 1.001100310ug/kg111 6/2/16 RPNPyrene 05/27/2016 14:00 16:35 ^J230 EPA 8270D110 1.0023050% Recovery69 6/2/16 RPNSurr: 2,4,6-Tribromophenol 05/27/2016 14:00 16:35 ^EPA 8270D1.0012535% Recovery71 6/2/16 RPNSurr: 2-Fluorobiphenyl 05/27/2016 14:00 16:35 ^EPA 8270D1.0010545% Recovery63 6/2/16 RPNSurr: 2-Fluorophenol 05/27/2016 14:00 16:35 ^EPA 8270D1.0010535% Recovery72 6/2/16 RPNSurr: Nitrobenzene-d5 05/27/2016 14:00 16:35 ^EPA 8270D1.0010035% Recovery64 6/2/16 RPNSurr: Phenol-d5 05/27/2016 14:00 16:35 ^EPA 8270D1.0010040% Recovery78 6/2/16 RPNSurr: Terphenyl-d14 05/27/2016 14:00 16:35 ^EPA 8270D1.0012530ug/kg<9.5 6/2/16 JJYAroclor-1016 05/27/2016 14:00 19:59U57 EPA 8082A38 1.00579.5ug/kg<13 6/2/16 JJYAroclor-1221 05/27/2016 14:00 19:59U57 EPA 8082A38 1.005713ug/kg<17 6/2/16 JJYAroclor-1232 05/27/2016 14:00 19:59U57 EPA 8082A38 1.005717ug/kg<13 6/2/16 JJYAroclor-1242 05/27/2016 14:00 19:59U57 EPA 8082A38 1.005713ug/kg42.0 6/2/16 JJYAroclor-1248 05/27/2016 14:00 19:59J57 EPA 8082A38 1.005713ug/kg64.9 6/2/16 JJYAroclor-1254 05/27/2016 14:00 19:5957 EPA 8082A38 1.005717ug/kg22.9 6/2/16 JJYAroclor-1260 05/27/2016 14:00 19:59J57 EPA 8082A38 1.005711ug/kg<13 6/2/16 JJYAroclor-1262 05/27/2016 14:00 19:59U57 EPA 8082A38 1.005713

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 44 of 176

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Page 44 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727951

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016 1520

Analyte

Sample Description: GL-SD-03-052316

DODLOD

Client Sample #:

ug/kg<9.5 6/2/16 JJYAroclor-1268 05/27/2016 14:00 19:59U57 EPA 8082A38 1.00579.5% Recovery104 6/2/16 JJYSurr: 2,4,5,6-TCMX 05/27/2016 14:00 19:59 EPA 8082A1.0013554% Recovery88 6/2/16 JJYSurr: DCBP 05/27/2016 14:00 19:59 EPA 8082A1.0014154

Sub Lab Results

ATTACHED 6/15/16 SUBHerbicides 00:00 SW81511.00

CT LAB#: 727952

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016

Analyte

Sample Description: TRIP BLANK-01-052416

DODLOD

Client Sample #:

Organic Results

ug/L<0.21 5/31/16 AGK1,1,1-Trichloroethane 11:27 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.19 5/31/16 AGK1,1,2,2-Tetrachloroethane 11:27 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGK1,1,2-Trichloroethane 11:27 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.20 5/31/16 AGK1,1-Dichloroethane 11:27 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.24 5/31/16 AGK1,1-Dichloroethene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.30 5/31/16 AGK1,2,3-Trichlorobenzene 11:27 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.30 5/31/16 AGK1,2,4-Trichlorobenzene 11:27 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.40 5/31/16 AGK1,2-Dibromo-3-chloropropane 11:27 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.16 5/31/16 AGK1,2-Dibromoethane 11:27 ^U0.50 EPA 8260C0.25 1.000.500.16ug/L<0.23 5/31/16 AGK1,2-Dichlorobenzene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.30 5/31/16 AGK1,2-Dichloroethane 11:27 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGK1,2-Dichloropropane 11:27 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.26 5/31/16 AGK1,3-Dichlorobenzene 11:27 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.21 5/31/16 AGK1,4-Dichloro-2-butene 11:27U0.50 EPA 8260C0.25 1.000.500.21ug/L<5.0 Z,Q 5/31/16 AGK1,4-Dioxane 11:27U25 EPA 8260C13 1.00255.0

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 45 of 176

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Page 45 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727952

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016

Analyte

Sample Description: TRIP BLANK-01-052416

DODLOD

Client Sample #:

ug/L<0.50 5/31/16 AGK112Trichloro122trifluoroethane 11:27U1.0 EPA 8260C0.50 1.001.00.50ug/L<2.4 5/31/16 AGK2-Butanone 11:27 ^U5.0 EPA 8260C2.5 1.005.02.4ug/L<4.0 5/31/16 AGK2-Hexanone 11:27 ^U10 EPA 8260C5.0 1.00104.0ug/L<3.0 5/31/16 AGK4-Methyl-2-pentanone 11:27 ^U10 EPA 8260C5.0 1.00103.0ug/L<5.0 5/31/16 AGKAcetone 11:27 ^U10 EPA 8260C5.0 1.00105.0ug/L<0.19 5/31/16 AGKBenzene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.19 5/31/16 AGKBromochloromethane 11:27 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.20 5/31/16 AGKBromodichloromethane 11:27 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.22 5/31/16 AGKBromoform 11:27 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.50 5/31/16 AGKBromomethane 11:27 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.50 5/31/16 AGKCarbon disulfide 11:27 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.23 5/31/16 AGKCarbon tetrachloride 11:27 ^U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.24 5/31/16 AGKChlorobenzene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.40 5/31/16 AGKChloroethane 11:27 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.15 5/31/16 AGKChloroform 11:27 ^U0.50 EPA 8260C0.25 1.000.500.15ug/L<0.40 5/31/16 AGKChloromethane 11:27 ^U1.0 EPA 8260C0.50 1.001.00.40ug/L<0.25 5/31/16 AGKcis-1,2-Dichloroethene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKcis-1,3-Dichloropropene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.28 5/31/16 AGKCyclohexane 11:27U1.0 EPA 8260C0.50 1.001.00.28ug/L<0.19 5/31/16 AGKDibromochloromethane 11:27 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.26 5/31/16 AGKDichlorodifluoromethane 11:27 ^U1.0 EPA 8260C0.50 1.001.00.26ug/L<0.22 5/31/16 AGKEthylbenzene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.18 5/31/16 AGKIsopropylbenzene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.18ug/L<0.50 5/31/16 AGKm & p-Xylene 11:27 ^U1.0 EPA 8260C0.50 1.001.00.50ug/L<0.30 5/31/16 AGKMethyl acetate 11:27U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.29 5/31/16 AGKMethyl tert-butyl ether 11:27 ^U1.0 EPA 8260C0.50 1.001.00.29ug/L<0.23 5/31/16 AGKMethylcyclohexane 11:27U0.50 EPA 8260C0.25 1.000.500.23ug/L<0.40 5/31/16 AGKMethylene chloride 11:27 ^U2.0 EPA 8260C0.50 1.002.00.40

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 46 of 176

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Page 46 of 47Project Name: GRADEL LF

Contract #: 2920 Folder #: 119245

Project #:

TETRA TECH

Project Phase:

CT LAB#: 727952

Result Units DL DODLOQ

RL DF Qualifier PrepDate/Time

AnalysisDate/Time

Analyst Method

Sampled: 05/23/2016

Analyte

Sample Description: TRIP BLANK-01-052416

DODLOD

Client Sample #:

ug/L<0.24 5/31/16 AGKo-Xylene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.24ug/L<0.20 5/31/16 AGKStyrene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.30 5/31/16 AGKTetrachloroethene 11:27 ^U1.0 EPA 8260C0.50 1.001.00.30ug/L<0.22 5/31/16 AGKToluene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.22ug/L<0.25 5/31/16 AGKtrans-1,2-Dichloroethene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.25ug/L<0.19 5/31/16 AGKtrans-1,3-Dichloropropene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.19ug/L<0.21 5/31/16 AGKTrichloroethene 11:27 ^U0.50 EPA 8260C0.25 1.000.500.21ug/L<0.20 5/31/16 AGKTrichlorofluoromethane 11:27 ^U0.50 EPA 8260C0.25 1.000.500.20ug/L<0.18 5/31/16 AGKVinyl chloride 11:27 ^U0.50 EPA 8260C0.25 1.000.500.18% Recovery98 5/31/16 AGK1,2 Dichloroethane-d4 11:27 EPA 8260C1.0012070% Recovery99 5/31/16 AGKBromofluorobenzene 11:27 EPA 8260C1.0012075% Recovery100 5/31/16 AGKd8-Toluene 11:27 EPA 8260C1.0012085% Recovery99 5/31/16 AGKDibromofluoromethane 11:27 EPA 8260C1.0011585

Unless specifically stated to the contrary, soil/sediment/sludge sample results reported on a Dry Weight Basis119245 - Page 47 of 176

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Notes: ^ Indicates the laboratory is NELAP accredited for this analyte by the indicated matrix and method. DL (detection limit), LOD (limit of detection), loq (limit of quantitation) as defined by most recent DOD QSM version.

Submitted by: Brett M. SzymanskiProject Manager 608-356-2760

DescriptionCodeQC Qualifiers

B Analyte detected in the associated Method Blank.C Toxicity present in BOD sample.D Diluted Out.E Safe, No Total Coliform detected.F Unsafe, Total Coliform detected, no E. Coli detected.G Unsafe, Total Coliform detected and E. Coli detected.H Holding time exceeded.I BOD incubator temperature was outside acceptance limits during test period.J Estimated value.L Significant peaks were detected outside the chromatographic window.M Matrix spike and/or Matrix Spike Duplicate recovery outside acceptance limits.N Insufficient BOD oxygen depletion.O Complete BOD oxygen depletion.P Concentration of analyte differs more than 40% between primary and confirmation analysis.Q Laboratory Control Sample outside acceptance limits.R See Narrative at end of report.S Surrogate standard recovery outside acceptance limits due to apparent matrix effects.T Sample received with improper preservation or temperature.U Analyte concentration was below detection limit.V Raised Quantitation or Reporting Limit due to limited sample amount or dilution for matrix background interference.W Sample amount received was below program minimum.X Analyte exceeded calibration range.Y Replicate/Duplicate precision outside acceptance limits.Z Specified calibration criteria was not met.

Current CT Laboratories Certifications

Kansas NELAP ID# E-10368Kentucky ID# 0023ISO/IEC 17025-2005 A2LA Cert # 3806.01North Carolina ID# 674Wisconsin (WDNR) Chemistry ID# 157066030Wisconsin (DATCP) Bacteriology ID# 105-289DoD-ELAP A2LA 3806.01GA EPD Stipulation ID E871111, Expires AnnuallyLouisiana ID # 115843Virginia ID# 7608Illinois NELAP ID # 002413Wisconsin (WOSB) ID# WI-5499-WBEMaryland ID# 344

All samples were received intact and properly preserved unless otherwise noted. The results reported relate only to the samples tested. This report shall not be reproduced, except in full, without written approval of this laboratory. The Chain of Custody is attached. This report has been specifically prepared to satisfy project or program requirements. These results are in compliance with NELAC requirements for the parameters where accreditation is required or available, unless noted in the case narrative.

119245 - Page 48 of 176

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1230 Lange Court • Baraboo , W I 53913 • 608 -356-2760

www.ctlabor atories .com

QC SUMMARY REPORT

TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Duplicate

05/26/2016Analytical Run #: Analysis Date:10:22Analysis Time:729490ABS

CTLab #:Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOILMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126438Method: SW8000C

Solids, Percent % 8 850.0 54.2

Date Printed: 06/16/2016

CTLaboratories LLC 1230 Lange Court • Baraboo, WI 53913 • 608-356-2760

www.ctlaboratories.com

119245 - Page 49 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Duplicate

06/01/2016Analytical Run #: Analysis Date:11:50Analysis Time:730482JJF

CTLab #:Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOILMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126565Method: LYDKHN

Total Organic Carbon mg/kg 7 3038700 36100

Date Printed: 06/16/2016

CTLaboratories LLC 1230 Lange Court • Baraboo, WI 53913 • 608-356-2760

www.ctlaboratories.com

119245 - Page 50 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Duplicate

06/01/2016Analytical Run #: Analysis Date:11:56Analysis Time:730483JJF

CTLab #:Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOILMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126565Method: LYDKHN

Total Organic Carbon mg/kg 11 3040300 36100

Date Printed: 06/16/2016

CTLaboratories LLC 1230 Lange Court • Baraboo, WI 53913 • 608-356-2760

www.ctlaboratories.com

119245 - Page 51 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Duplicate

06/01/2016Analytical Run #: Analysis Date:12:02Analysis Time:730484JJF

CTLab #:Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOILMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126565Method: LYDKHN

Total Organic Carbon mg/kg 8 3039100 36100

Date Printed: 06/16/2016

CTLaboratories LLC 1230 Lange Court • Baraboo, WI 53913 • 608-356-2760

www.ctlaboratories.com

119245 - Page 52 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Soil

06/01/2016Analytical Run #: Analysis Date:11:24Analysis Time:730480JJF

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126565Method: LYDKHN

Total Organic Carbon mg/kg 105 113419000 84 ---400000

Date Printed: 06/16/2016

CTLaboratories LLC 1230 Lange Court • Baraboo, WI 53913 • 608-356-2760

www.ctlaboratories.com

119245 - Page 53 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Soil

06/01/2016Analytical Run #: Analysis Date:11:30Analysis Time:730481JJF

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126565Method: LYDKHN

Total Organic Carbon mg/kg U 900301 0

Date Printed: 06/16/2016

CTLaboratories LLC 1230 Lange Court • Baraboo, WI 53913 • 608-356-2760

www.ctlaboratories.com

119245 - Page 54 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Duplicate

06/01/2016Analytical Run #: Analysis Date:14:20Analysis Time:730799SAW

CTLab #:Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATERMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126618Method: SW9045C

pH S.U. 0 17.72 7.70

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Project Number: SDG #: 0 Folder #: 119245

Duplicate

05/27/2016Analytical Run #: Analysis Date:20:27Analysis Time:728499

57452

NAHCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126458Method: SW601005/26/201607:00

Aluminum mg/kg 9.6 8 206260 5780Antimony mg/kg 32 22 200.30 <0.245Arsenic mg/kg 32 17 205.2 4.4Barium mg/kg 2.0 42 2057.4 37.3Beryllium mg/kg 1.60 8 200.13 0.12Cadmium mg/kg 1.60 4 200.23 0.22Calcium mg/kg 56 1 2044800 45200Chromium mg/kg 5.6 8 2011.5 10.6Cobalt mg/kg 9.6 6 207.1 6.7Copper mg/kg 16.0 34 2028.0 19.8Iron mg/kg 72 7 2013400 12500Lead mg/kg 10.0 23 2023.1 29.2Magnesium mg/kg 32 3 2011900 11600Manganese mg/kg 6.0 5 20387 367Nickel mg/kg 4.8 6 2019.5 18.3Selenium mg/kg 16 58 200.44 0.80Silver mg/kg U 4.0 0 200.0320 <0.0320Thallium mg/kg U 19 0 200.151 <0.151Vanadium mg/kg 3.2 9 2015.1 13.8Zinc mg/kg 12.0 11 2079.1 88.1

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Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Soil

05/27/2016Analytical Run #: Analysis Date:19:54Analysis Time:728498

57452

NAHCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126458Method: SW601005/26/201607:00

Aluminum mg/kg 98 12098.0 80 ---100Antimony mg/kg 103 12025.8 80 ---25.0Arsenic mg/kg 91 12091.0 80 ---100Barium mg/kg 107 120107 80 ---100Beryllium mg/kg 96 1202.4 80 ---2.5Cadmium mg/kg 88 1202.2 80 ---2.5Calcium mg/kg 94 1204700 80 ---5000Chromium mg/kg 90 1209.0 80 ---10.0Cobalt mg/kg 93 12023.2 80 ---25.0Copper mg/kg 90 12011.2 80 ---12.5Iron mg/kg 100 12050.0 80 ---50.0Lead mg/kg 90 12022.6 80 ---25.0Magnesium mg/kg 92 1202300 80 ---2500Manganese mg/kg 90 12022.6 80 ---25.0Nickel mg/kg 90 12022.4 80 ---25.0Selenium mg/kg 96 12095.5 80 ---100Silver mg/kg 88 1202.2 75 ---2.5Thallium mg/kg 85 12084.8 80 ---100Vanadium mg/kg 96 12024.0 80 ---25.0Zinc mg/kg 90 12022.5 80 ---25.0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Soil

05/27/2016Analytical Run #: Analysis Date:20:00Analysis Time:728497

57452

NAHCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126458Method: SW601005/26/201607:00

Aluminum mg/kg 0.120.33 0Antimony mg/kg U 0.400.13 0Arsenic mg/kg U 0.400.13 0Barium mg/kg 0.0250.016 0Beryllium mg/kg U 0.0200.004 0Cadmium mg/kg U 0.0200.006 0Calcium mg/kg 0.705.0 0Chromium mg/kg U 0.1250.023 0Cobalt mg/kg U 0.120.04 0Copper mg/kg U 0.200.07 0Iron mg/kg 0.91.1 0Lead mg/kg U 0.1250.04 0Magnesium mg/kg 0.401.6 0Manganese mg/kg 0.0750.056 0Nickel mg/kg U 0.0600.021 0Selenium mg/kg U 0.200.06 0Silver mg/kg U 0.0500.017 0Thallium mg/kg U 0.240.08 0Vanadium mg/kg U 0.0400.012 0Zinc mg/kg U 0.150.05 0

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Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Soil

05/27/2016Analytical Run #: Analysis Date:21:00Analysis Time:728501

57452

NAHCTLab #:

Analyst:

Prep Batch #:

728500Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126458Method: SW601005/26/201607:00

Aluminum mg/kg 646 120 3 207000 5780 80 ---189Antimony mg/kg 39 120 7 2018.5 <0.246 80 ---47.3Arsenic mg/kg 83 120 1 20161 4.4 80 ---189Barium mg/kg 123 120 4 20270 37.3 80 ---189Beryllium mg/kg 89 120 0 204.3 0.12 80 ---4.7Cadmium mg/kg 83 120 4 204.1 0.22 80 ---4.7Calcium mg/kg 92 120 4 2053900 45200 80 ---9460Chromium mg/kg 89 120 2 2027.4 10.6 80 ---18.9Cobalt mg/kg 81 120 2 2045.0 6.7 80 ---47.3Copper mg/kg 144 120 5 2053.9 19.8 80 ---23.7Iron mg/kg 1691 120 7 2014100 12500 80 ---94.6Lead mg/kg 112 120 5 2082.3 29.2 80 ---47.3Magnesium mg/kg 108 120 4 2016700 11600 80 ---4730Manganese mg/kg 209 120 8 20466 367 80 ---47.3Nickel mg/kg 81 120 1 2056.8 18.3 80 ---47.3Selenium mg/kg 93 120 2 20176 0.80 80 ---189Silver mg/kg 91 125 0 204.3 BDL 75 ---4.7Thallium mg/kg 69 120 0 20131 BDL 80 ---189Vanadium mg/kg 93 120 2 2057.7 13.8 80 ---47.3Zinc mg/kg 89 120 5 20130 88.1 80 ---47.3

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Soil

05/27/2016Analytical Run #: Analysis Date:20:34Analysis Time:728500

57452

NAHCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126458Method: SW601005/26/201607:00

Aluminum mg/kg 465 1206640 5780 80 ---185Antimony mg/kg 36 12016.9 0.24 80 ---46.1Arsenic mg/kg 82 120156 4.4 80 ---185Barium mg/kg 117 120253 37.3 80 ---185Beryllium mg/kg 89 1204.2 0.12 80 ---4.6Cadmium mg/kg 80 1203.9 0.22 80 ---4.6Calcium mg/kg 60 12050700 45200 80 ---9230Chromium mg/kg 84 12026.2 10.6 80 ---18.5Cobalt mg/kg 79 12043.2 6.7 80 ---46.1Copper mg/kg 130 12049.8 19.8 80 ---23.1Iron mg/kg 325 12012800 12500 80 ---92.3Lead mg/kg 103 12076.6 29.2 80 ---46.1Magnesium mg/kg 89 12015700 11600 80 ---4610Manganese mg/kg 113 120419 367 80 ---46.1Nickel mg/kg 81 12055.8 18.3 80 ---46.1Selenium mg/kg 90 120168 0.80 80 ---185Silver mg/kg 91 1254.2 BDL 75 ---4.6Thallium mg/kg 69 120128 BDL 80 ---185Vanadium mg/kg 89 12054.9 13.8 80 ---46.1Zinc mg/kg 69 120120 88.1 80 ---46.1

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Duplicate

05/27/2016Analytical Run #: Analysis Date:08:01Analysis Time:728499

57452

MDSCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126461Method: SW601005/26/201607:00

Potassium mg/kg 2.64 5 20658 627

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Project Number: SDG #: 0 Folder #: 119245

Duplicate

05/27/2016Analytical Run #: Analysis Date:08:01Analysis Time:728499

57452

MDSCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126461Method: SW601005/26/201607:00

Sodium mg/kg 0.96 6 2084.4 89.3

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Soil

05/27/2016Analytical Run #: Analysis Date:07:47Analysis Time:728498

57452

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126461Method: SW601005/26/201607:00

Potassium mg/kg 90 1202240 80 ---2500

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Soil

05/27/2016Analytical Run #: Analysis Date:07:47Analysis Time:728498

57452

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126461Method: SW601005/26/201607:00

Sodium mg/kg 90 1202260 80 ---2500

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Soil

05/27/2016Analytical Run #: Analysis Date:07:50Analysis Time:728497

57452

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126461Method: SW601005/26/201607:00

Potassium mg/kg U 3311 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Soil

05/27/2016Analytical Run #: Analysis Date:07:50Analysis Time:728497

57452

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126461Method: SW601005/26/201607:00

Sodium mg/kg U 124 0

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Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Soil

05/27/2016Analytical Run #: Analysis Date:08:07Analysis Time:728501

57452

MDSCTLab #:

Analyst:

Prep Batch #:

728500Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126461Method: SW601005/26/201607:00

Potassium mg/kg 90 120 0 202920 627 80 ---2560

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Soil

05/27/2016Analytical Run #: Analysis Date:08:07Analysis Time:728501

57452

MDSCTLab #:

Analyst:

Prep Batch #:

728500Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126461Method: SW601005/26/201607:00

Sodium mg/kg 99 120 0 202620 89.3 80 ---2560

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Soil

05/27/2016Analytical Run #: Analysis Date:08:04Analysis Time:728500

57452

MDSCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126461Method: SW601005/26/201607:00

Potassium mg/kg 89 1202850 627 80 ---2500

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Soil

05/27/2016Analytical Run #: Analysis Date:08:04Analysis Time:728500

57452

MDSCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126461Method: SW601005/26/201607:00

Sodium mg/kg 98 1202550 89.3 80 ---2500

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Duplicate

05/28/2016Analytical Run #: Analysis Date:01:38Analysis Time:728481

57448

NAHCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126469Method: SW601005/26/201611:00

Total Aluminum ug/L 36 14 202080 1810Total Antimony ug/L U 12.0 0 202.00 <2.00Total Arsenic ug/L U 24 0 204.00 <4.00Total Barium ug/L 1.80 1 20147 146Total Beryllium ug/L U 0.60 0 200.100 <0.100Total Cadmium ug/L U 2.0 0 200.300 <0.300Total Calcium ug/L 100 1 2084400 83600Total Chromium ug/L 4.0 8 203.7 3.4Total Cobalt ug/L 4.0 4 202.4 2.3Total Copper ug/L 7.0 3 207.5 7.3Total Iron ug/L 100 5 203610 3440Total Lead ug/L 4.0 24 208.0 6.3Total Magnesium ug/L 40 1 2046600 46300Total Manganese ug/L 4.0 0 20231 230Total Nickel ug/L 6.0 0 207.6 7.6Total Selenium ug/L U 13.0 0 202.20 <2.20Total Silver ug/L U 4.0 0 200.700 <0.700Total Thallium ug/L U 15.0 0 202.50 <2.50Total Vanadium ug/L 5.0 5 204.4 4.2Total Zinc ug/L 10.0 2 2033.8 33.1

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Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Water

05/28/2016Analytical Run #: Analysis Date:00:45Analysis Time:728480

57448

NAHCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126469Method: SW601005/26/201611:00

Total Aluminum ug/L 101 120810.0 80 ---800.0Total Antimony ug/L 110 120219.0 80 ---200.0Total Arsenic ug/L 104 120834.0 80 ---800.0Total Barium ug/L 115 120922.0 80 ---800.0Total Beryllium ug/L 98 12019.70 80 ---20.00Total Cadmium ug/L 99 12019.80 80 ---20.00Total Calcium ug/L 93 120186000 80 ---200000Total Chromium ug/L 98 12078.00 80 ---80.00Total Cobalt ug/L 104 120207.0 80 ---200.0Total Copper ug/L 101 120101.0 80 ---100.0Total Iron ug/L 112 120447.0 80 ---400.0Total Lead ug/L 100 120200.0 80 ---200.0Total Magnesium ug/L 91 12091300 80 ---100000Total Manganese ug/L 98 120197.0 80 ---200.0Total Nickel ug/L 100 120199.0 80 ---200.0Total Selenium ug/L 112 120896.0 80 ---800.0Total Silver ug/L 100 12020.00 80 ---20.00Total Thallium ug/L 96 120768.0 80 ---800.0Total Vanadium ug/L 103 120206.0 80 ---200.0Total Zinc ug/L 103 120206.0 80 ---200.0

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Project Number: SDG #: 0 Folder #: 119245

Method Blank Water

05/28/2016Analytical Run #: Analysis Date:00:52Analysis Time:728479

57448

NAHCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126469Method: SW601005/26/201611:00

Total Aluminum ug/L U 186 0Total Antimony ug/L U 6.02.0 0Total Arsenic ug/L U 124 0Total Barium ug/L U 0.900.29 0Total Beryllium ug/L U 0.300.10 0Total Cadmium ug/L U 1.00.3 0Total Calcium ug/L U 5017 0Total Chromium ug/L U 2.00.6 0Total Cobalt ug/L U 2.00.7 0Total Copper ug/L U 3.51.2 0Total Iron ug/L 5036.70 0Total Lead ug/L U 2.01.4 0Total Magnesium ug/L U 206 0Total Manganese ug/L U 2.00.7 0Total Nickel ug/L U 3.01.0 0Total Selenium ug/L U 6.52.2 0Total Silver ug/L U 2.00.7 0Total Thallium ug/L U 7.52.5 0Total Vanadium ug/L U 2.50.8 0Total Zinc ug/L 5.01.66 0

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Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Water

05/28/2016Analytical Run #: Analysis Date:02:05Analysis Time:728483

57448

NAHCTLab #:

Analyst:

Prep Batch #:

728482Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126469Method: SW601005/26/201611:00

Total Aluminum ug/L 98 120 36 202590 1810 80 ---800Total Antimony ug/L 110 120 2 20220 BDL 80 ---200Total Arsenic ug/L 102 120 1 20820 BDL 80 ---800Total Barium ug/L 128 120 3 201170 146 80 ---800Total Beryllium ug/L 100 120 0 2020.1 BDL 80 ---20.0Total Cadmium ug/L 100 120 0 2020.0 BDL 80 ---20.0Total Calcium ug/L 92 120 0 20268000 83600 80 ---200000Total Chromium ug/L 98 120 1 2081.4 3.4 80 ---80.0Total Cobalt ug/L 104 120 0 20210 2.3 80 ---200Total Copper ug/L 102 120 1 20109 7.3 80 ---100Total Iron ug/L 92 120 32 203810 3440 80 ---400Total Lead ug/L 100 120 1 20207 6.3 80 ---200Total Magnesium ug/L 93 120 1 20139000 46300 80 ---100000Total Manganese ug/L 96 120 2 20423 230 80 ---200Total Nickel ug/L 98 120 0 20203 7.6 80 ---200Total Selenium ug/L 116 120 1 20930 BDL 80 ---800Total Silver ug/L 98 120 4 2019.5 BDL 80 ---20.0Total Thallium ug/L 95 120 1 20761 BDL 80 ---800Total Vanadium ug/L 105 120 0 20214 4.2 80 ---200Total Zinc ug/L 104 120 0 20241 33.1 80 ---200

Date Printed: 06/16/2016

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119245 - Page 74 of 176

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Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Water

05/28/2016Analytical Run #: Analysis Date:01:58Analysis Time:728482

57448

NAHCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126469Method: SW601005/26/201611:00

Total Aluminum ug/L 238 1203710 1810 80 ---800Total Antimony ug/L 108 120216 BDL 80 ---200Total Arsenic ug/L 104 120829 BDL 80 ---800Total Barium ug/L 124 1201140 146 80 ---800Total Beryllium ug/L 100 12020.0 BDL 80 ---20.0Total Cadmium ug/L 100 12020.0 BDL 80 ---20.0Total Calcium ug/L 93 120269000 83600 80 ---200000Total Chromium ug/L 99 12082.4 3.4 80 ---80.0Total Cobalt ug/L 104 120210 2.3 80 ---200Total Copper ug/L 103 120110 7.3 80 ---100Total Iron ug/L 452 1205250 3440 80 ---400Total Lead ug/L 101 120209 6.3 80 ---200Total Magnesium ug/L 94 120140000 46300 80 ---100000Total Manganese ug/L 101 120432 230 80 ---200Total Nickel ug/L 98 120203 7.6 80 ---200Total Selenium ug/L 116 120924 BDL 80 ---800Total Silver ug/L 102 12020.3 BDL 80 ---20.0Total Thallium ug/L 95 120757 BDL 80 ---800Total Vanadium ug/L 105 120214 4.2 80 ---200Total Zinc ug/L 103 120240 33.1 80 ---200

Date Printed: 06/16/2016

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119245 - Page 75 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Duplicate

05/27/2016Analytical Run #: Analysis Date:13:10Analysis Time:728481

57448

MDSCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126470Method: SW601005/26/201611:00

Total Potassium ug/L 0.500 0 2026800 26900

Date Printed: 06/16/2016

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119245 - Page 76 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Duplicate

05/27/2016Analytical Run #: Analysis Date:13:10Analysis Time:728481

57448

MDSCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126470Method: SW601005/26/201611:00

Total Sodium ug/L 0.600 0 2046800 47000

Date Printed: 06/16/2016

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119245 - Page 77 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Water

05/27/2016Analytical Run #: Analysis Date:12:56Analysis Time:728480

57448

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126470Method: SW601005/26/201611:00

Total Potassium ug/L 90 12090100 80 ---100000

Date Printed: 06/16/2016

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119245 - Page 78 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Water

05/27/2016Analytical Run #: Analysis Date:12:56Analysis Time:728480

57448

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126470Method: SW601005/26/201611:00

Total Sodium ug/L 94 12093700 80 ---100000

Date Printed: 06/16/2016

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119245 - Page 79 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Water

05/27/2016Analytical Run #: Analysis Date:12:59Analysis Time:728479

57448

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126470Method: SW601005/26/201611:00

Total Potassium ug/L U 25090 0

Date Printed: 06/16/2016

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119245 - Page 80 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Water

05/27/2016Analytical Run #: Analysis Date:12:59Analysis Time:728479

57448

MDSCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126470Method: SW601005/26/201611:00

Total Sodium ug/L U 300100 0

Date Printed: 06/16/2016

CTLaboratories LLC 1230 Lange Court • Baraboo, WI 53913 • 608-356-2760

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119245 - Page 81 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Water

05/27/2016Analytical Run #: Analysis Date:13:16Analysis Time:728483

57448

MDSCTLab #:

Analyst:

Prep Batch #:

728482Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126470Method: SW601005/26/201611:00

Total Potassium ug/L 89 120 2 20116000 26900 80 ---100000

Date Printed: 06/16/2016

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119245 - Page 82 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Water

05/27/2016Analytical Run #: Analysis Date:13:16Analysis Time:728483

57448

MDSCTLab #:

Analyst:

Prep Batch #:

728482Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126470Method: SW601005/26/201611:00

Total Sodium ug/L 92 120 1 20139000 47000 80 ---100000

Date Printed: 06/16/2016

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119245 - Page 83 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Water

05/27/2016Analytical Run #: Analysis Date:13:13Analysis Time:728482

57448

MDSCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126470Method: SW601005/26/201611:00

Total Potassium ug/L 91 120118000 26900 80 ---100000

Date Printed: 06/16/2016

CTLaboratories LLC 1230 Lange Court • Baraboo, WI 53913 • 608-356-2760

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119245 - Page 84 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Water

05/27/2016Analytical Run #: Analysis Date:13:13Analysis Time:728482

57448

MDSCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126470Method: SW601005/26/201611:00

Total Sodium ug/L 94 120141000 47000 80 ---100000

Date Printed: 06/16/2016

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119245 - Page 85 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Duplicate

05/31/2016Analytical Run #: Analysis Date:08:47Analysis Time:728756

57468

LJFCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126513Method: SW7470A05/27/201609:30

Total Mercury ug/L U 0.12 0 200.0300 <0.0300

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Water

05/31/2016Analytical Run #: Analysis Date:08:38Analysis Time:728754

57468

LJFCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126513Method: SW7470A05/27/201609:30

Total Mercury ug/L 81 1202.42 80 ---3.00

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Water

05/31/2016Analytical Run #: Analysis Date:08:40Analysis Time:728753

57468

LJFCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126513Method: SW7470A05/27/201609:30

Total Mercury ug/L U 0.060.03 0

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Water

05/31/2016Analytical Run #: Analysis Date:08:51Analysis Time:728758

57468

LJFCTLab #:

Analyst:

Prep Batch #:

728757Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126513Method: SW7470A05/27/201609:30

Total Mercury ug/L 65 120 33 201.3 BDL 80 ---2.0

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Water

05/31/2016Analytical Run #: Analysis Date:08:49Analysis Time:728757

57468

LJFCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126513Method: SW7470A05/27/201609:30

Total Mercury ug/L 90 1201.8 BDL 80 ---2.0

Date Printed: 06/16/2016

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Project Number: SDG #: 0 Folder #: 119245

Duplicate

05/31/2016Analytical Run #: Analysis Date:14:49Analysis Time:728732

57461

LJFCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126526Method: SW7471B05/27/201612:00

Mercury mg/kg 0.20 4 200.046 0.048

Date Printed: 06/16/2016

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Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Soil

05/31/2016Analytical Run #: Analysis Date:14:36Analysis Time:728731

57461

LJFCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126526Method: SW7471B05/27/201612:00

Mercury mg/kg 108 1200.090 80 ---0.083

Date Printed: 06/16/2016

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Project Number: SDG #: 0 Folder #: 119245

Method Blank Soil

05/31/2016Analytical Run #: Analysis Date:14:38Analysis Time:728730

57461

LJFCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126526Method: SW7471B05/27/201612:00

Mercury mg/kg U 004150.0021 0

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Soil

05/31/2016Analytical Run #: Analysis Date:14:53Analysis Time:728734

57461

LJFCTLab #:

Analyst:

Prep Batch #:

728733Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126526Method: SW7471B05/27/201612:00

Mercury mg/kg 101 120 2 200.20 0.048 80 ---0.15

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Soil

05/31/2016Analytical Run #: Analysis Date:14:51Analysis Time:728733

57461

LJFCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

LJF

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126526Method: SW7471B05/27/201612:00

Mercury mg/kg 108 1200.22 0.048 80 ---0.16

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Soil

05/29/2016Analytical Run #: Analysis Date:09:27Analysis Time:728358

57445

RLDCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

1,1,1-Trichloroethane ug/kg 103 135513 70 ---5001,1,2,2-Tetrachloroethane ug/kg 95 130474 55 ---5001,1,2-Trichloroethane ug/kg 102 125510 60 ---5001,1-Dichloroethane ug/kg 100 125501 75 ---5001,1-Dichloroethene ug/kg 100 135500 65 ---5001,2,3-Trichlorobenzene ug/kg 102 135508 60 ---5001,2,4-Trichlorobenzene ug/kg 98 130488 65 ---5001,2-Dibromo-3-chloropropane ug/kg 86 135430 40 ---5001,2-Dibromoethane ug/kg 105 125523 70 ---5001,2-Dichlorobenzene ug/kg 99 120496 75 ---5001,2-Dichloroethane ug/kg 100 135499 70 ---5001,2-Dichloropropane ug/kg 98 120490 70 ---5001,3-Dichlorobenzene ug/kg 101 125505 70 ---5001,4-Dichloro-2-butene ug/kg 78 146390 51 ---5001,4-Dioxane ug/kg 94 13823500 58 ---25000112Trichloro122trifluoroethane ug/kg 94 129940 75 ---10002-Butanone ug/kg 94 1604690 30 ---50002-Hexanone ug/kg 99 1454930 45 ---50004-Methyl-2-pentanone ug/kg 98 1454900 45 ---5000Acetone ug/kg 97 1604860 20 ---5000Benzene ug/kg 101 125503 75 ---500Bromochloromethane ug/kg 98 125488 70 ---500Bromodichloromethane ug/kg 105 130524 70 ---500Bromoform ug/kg 106 135528 55 ---500Bromomethane ug/kg 115 160573 30 ---500Carbon disulfide ug/kg 97 160971 45 ---1000Carbon tetrachloride ug/kg 107 135537 65 ---500Chlorobenzene ug/kg 98 125492 75 ---500Chloroethane ug/kg 98 155488 40 ---500Chloroform ug/kg 100 125500 70 ---500Chloromethane ug/kg 91 130454 50 ---500cis-1,2-Dichloroethene ug/kg 98 125489 65 ---500cis-1,3-Dichloropropene ug/kg 100 125500 70 ---500Cyclohexane ug/kg 98 128489 73 ---500Dibromochloromethane ug/kg 102 130510 65 ---500Dichlorodifluoromethane ug/kg 101 135504 35 ---500Ethylbenzene ug/kg 102 125508 75 ---500Isopropylbenzene ug/kg 102 130510 75 ---500m & p-Xylene ug/kg 99 125994 80 ---1000Methyl acetate ug/kg 101 176507 37 ---500Methyl tert-butyl ether ug/kg 96 125479 74 ---500Methylcyclohexane ug/kg 97 126483 73 ---500Methylene chloride ug/kg 91 140457 55 ---500

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Soil

05/29/2016Analytical Run #: Analysis Date:09:27Analysis Time:728358

57445

RLDCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

Naphthalene ug/kg 100 125499 40 ---500o-Xylene ug/kg 104 125521 75 ---500Styrene ug/kg 100 125500 75 ---500Tetrachloroethene ug/kg 103 140515 65 ---500Toluene ug/kg 102 125512 70 ---500trans-1,2-Dichloroethene ug/kg 100 135500 65 ---500trans-1,3-Dichloropropene ug/kg 103 125513 65 ---500Trichloroethene ug/kg 98 125491 75 ---500Trichlorofluoromethane ug/kg 108 185539 25 ---500Vinyl chloride ug/kg 100 125502 60 ---500

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119245 - Page 97 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Soil

05/29/2016Analytical Run #: Analysis Date:10:24Analysis Time:728357

57445

RLDCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

1,1,1-Trichloroethane ug/kg U 2510 01,1,2,2-Tetrachloroethane ug/kg U 256 01,1,2-Trichloroethane ug/kg U 258 01,1-Dichloroethane ug/kg U 2511 01,1-Dichloroethene ug/kg U 2516 01,2,3-Trichlorobenzene ug/kg U 258 01,2,4-Trichlorobenzene ug/kg U 259 01,2-Dibromo-3-chloropropane ug/kg U 2512 01,2-Dibromoethane ug/kg U 2510 01,2-Dichlorobenzene ug/kg U 259 01,2-Dichloroethane ug/kg U 2512 01,2-Dichloropropane ug/kg U 257 01,3-Dichlorobenzene ug/kg U 258 01,4-Dichloro-2-butene ug/kg U 259 01,4-Dioxane ug/kg U 2500400 0112Trichloro122trifluoroethane ug/kg U 5020 02-Butanone ug/kg U 250100 02-Hexanone ug/kg U 25068 04-Methyl-2-pentanone ug/kg U 25082 0Acetone ug/kg U 25063 0Benzene ug/kg U 255 0Bromochloromethane ug/kg U 258 0Bromodichloromethane ug/kg U 259 0Bromoform ug/kg U 256 0Bromomethane ug/kg U 5030 0Carbon disulfide ug/kg U 5015 0Carbon tetrachloride ug/kg U 2511 0Chlorobenzene ug/kg U 258 0Chloroethane ug/kg U 2519 0Chloroform ug/kg U 259 0Chloromethane ug/kg U 5025 0cis-1,2-Dichloroethene ug/kg U 2510 0cis-1,3-Dichloropropene ug/kg U 2510 0Cyclohexane ug/kg U 2512 0Dibromochloromethane ug/kg U 258 0Dichlorodifluoromethane ug/kg U 2513 0Ethylbenzene ug/kg U 258 0Isopropylbenzene ug/kg U 258 0m & p-Xylene ug/kg U 5018 0Methyl acetate ug/kg U 2512 0Methyl tert-butyl ether ug/kg U 5028 0Methylcyclohexane ug/kg U 259 0Methylene chloride ug/kg U 5040 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Soil

05/29/2016Analytical Run #: Analysis Date:10:24Analysis Time:728357

57445

RLDCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

Naphthalene ug/kg U 2510 0o-Xylene ug/kg U 258 0Styrene ug/kg U 256 0Tetrachloroethene ug/kg U 258 0Toluene ug/kg U 257 0trans-1,2-Dichloroethene ug/kg U 2511 0trans-1,3-Dichloropropene ug/kg U 257 0Trichloroethene ug/kg U 2510 0Trichlorofluoromethane ug/kg U 2513 0Vinyl chloride ug/kg U 2514 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Soil

05/29/2016Analytical Run #: Analysis Date:18:30Analysis Time:728360

57445

RLDCTLab #:

Analyst:

Prep Batch #:

728359Parent Sample #:Prep Date/Time:

SOIL

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

1,1,1-Trichloroethane ug/kg 104 135 1 30482 BDL 70 ---4631,1,2,2-Tetrachloroethane ug/kg 79 130 6 30365 BDL 55 ---4631,1,2-Trichloroethane ug/kg 99 125 3 30458 BDL 60 ---4631,1-Dichloroethane ug/kg 101 125 1 30468 BDL 75 ---4631,1-Dichloroethene ug/kg 104 135 3 30480 BDL 65 ---4631,2 Dichloroethane-d4 % Recovery 101 117 30101 80 ---1001,2,3-Trichlorobenzene ug/kg 93 135 10 30431 BDL 60 ---4631,2,4-Trichlorobenzene ug/kg 95 130 5 30439 BDL 65 ---4631,2-Dibromo-3-chloropropane ug/kg 95 135 1 30440 BDL 40 ---4631,2-Dibromoethane ug/kg 101 125 4 30469 BDL 70 ---4631,2-Dichlorobenzene ug/kg 95 120 4 30439 BDL 75 ---4631,2-Dichloroethane ug/kg 104 135 2 30481 BDL 70 ---4631,2-Dichloropropane ug/kg 105 120 1 30486 BDL 70 ---4631,3-Dichlorobenzene ug/kg 100 125 4 30462 BDL 70 ---4631,4-Dichloro-2-butene ug/kg 75 146 3 30346 BDL 51 ---4631,4-Dioxane ug/kg 106 138 3 3024600 BDL 58 ---23100112Trichloro122trifluoroethane ug/kg 100 129 0 30929 BDL 75 ---9252-Butanone ug/kg 101 160 5 304660 BDL 30 ---46302-Hexanone ug/kg 105 145 2 304870 BDL 45 ---46304-Methyl-2-pentanone ug/kg 101 145 2 304690 BDL 20 ---4630Acetone ug/kg 124 160 1 305760 BDL 20 ---4630Benzene ug/kg 102 125 3 30473 BDL 75 ---463Bromochloromethane ug/kg 98 125 2 30455 BDL 70 ---463Bromodichloromethane ug/kg 105 130 1 30486 BDL 70 ---463Bromofluorobenzene % Recovery 97.0 120 3097.0 85 ---100Bromoform ug/kg 103 135 6 30478 BDL 55 ---463Bromomethane ug/kg 118 160 8 30548 BDL 30 ---463Carbon disulfide ug/kg 98 160 2 30911 BDL 45 ---925Carbon tetrachloride ug/kg 111 135 0 30515 BDL 65 ---463Chlorobenzene ug/kg 99 125 1 30457 BDL 75 ---463Chloroethane ug/kg 111 155 2 30515 BDL 40 ---463Chloroform ug/kg 101 125 1 30467 BDL 70 ---463Chloromethane ug/kg 89 130 3 30414 BDL 50 ---463cis-1,2-Dichloroethene ug/kg 99 125 2 30457 BDL 65 ---463cis-1,3-Dichloropropene ug/kg 101 125 1 30467 BDL 70 ---463Cyclohexane ug/kg 97 128 1 30447 BDL 73 ---463d8-Toluene % Recovery 102 115 30102 85 ---100Dibromochloromethane ug/kg 102 130 5 30473 BDL 65 ---463Dibromofluoromethane % Recovery 105 118 30105 82 ---100Dichlorodifluoromethane ug/kg 106 135 4 30493 BDL 35 ---463Ethylbenzene ug/kg 103 125 1 30475 BDL 75 ---463Isopropylbenzene ug/kg 102 130 1 30470 BDL 75 ---463m & p-Xylene ug/kg 99 125 2 30916 BDL 80 ---925

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Soil

05/29/2016Analytical Run #: Analysis Date:18:30Analysis Time:728360

57445

RLDCTLab #:

Analyst:

Prep Batch #:

728359Parent Sample #:Prep Date/Time:

SOIL

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

Methyl acetate ug/kg 292 176 3 301670 318 37 ---463Methyl tert-butyl ether ug/kg 98 140 0 30452 BDL 55 ---463Methylcyclohexane ug/kg 98 126 0 30455 BDL 73 ---463Methylene chloride ug/kg 92 140 6 30426 BDL 55 ---463Naphthalene ug/kg 104 125 3 30481 BDL 40 ---463o-Xylene ug/kg 102 125 1 30473 BDL 75 ---463Styrene ug/kg 102 125 1 30474 BDL 75 ---463Tetrachloroethene ug/kg 101 140 3 30469 BDL 65 ---463Toluene ug/kg 105 125 0 30485 BDL 70 ---463trans-1,2-Dichloroethene ug/kg 107 135 2 30494 BDL 65 ---463trans-1,3-Dichloropropene ug/kg 106 125 0 30492 BDL 65 ---463Trichloroethene ug/kg 115 125 1 30534 BDL 75 ---463Trichlorofluoromethane ug/kg 127 185 1 30589 BDL 25 ---463Vinyl chloride ug/kg 100 125 2 30464 BDL 60 ---463

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Soil

05/29/2016Analytical Run #: Analysis Date:18:02Analysis Time:728359

57445

RLDCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

1,1,1-Trichloroethane ug/kg 103 135479 BDL 70 ---4631,1,2,2-Tetrachloroethane ug/kg 83 130386 BDL 55 ---4631,1,2-Trichloroethane ug/kg 102 125473 BDL 60 ---4631,1-Dichloroethane ug/kg 102 125472 BDL 75 ---4631,1-Dichloroethene ug/kg 101 135468 BDL 65 ---4631,2 Dichloroethane-d4 % Recovery 97.0 11797.0 80 ---1001,2,3-Trichlorobenzene ug/kg 103 135478 BDL 60 ---4631,2,4-Trichlorobenzene ug/kg 100 130462 BDL 65 ---4631,2-Dibromo-3-chloropropane ug/kg 96 135443 BDL 40 ---4631,2-Dibromoethane ug/kg 105 125487 BDL 70 ---4631,2-Dichlorobenzene ug/kg 99 120459 BDL 75 ---4631,2-Dichloroethane ug/kg 101 135469 BDL 70 ---4631,2-Dichloropropane ug/kg 104 120482 BDL 70 ---4631,3-Dichlorobenzene ug/kg 103 125478 BDL 70 ---4631,4-Dichloro-2-butene ug/kg 73 146337 BDL 51 ---4631,4-Dioxane ug/kg 109 13825200 BDL 58 ---23100112Trichloro122trifluoroethane ug/kg 100 129925 BDL 75 ---9252-Butanone ug/kg 105 1604880 BDL 30 ---46302-Hexanone ug/kg 103 1454780 BDL 45 ---46304-Methyl-2-pentanone ug/kg 99 1454590 BDL 20 ---4630Acetone ug/kg 123 1605680 BDL 20 ---4630Benzene ug/kg 99 125459 BDL 75 ---463Bromochloromethane ug/kg 100 125464 BDL 70 ---463Bromodichloromethane ug/kg 106 130492 BDL 70 ---463Bromofluorobenzene % Recovery 102 120102 85 ---100Bromoform ug/kg 97 135448 BDL 55 ---463Bromomethane ug/kg 110 160508 BDL 30 ---463Carbon disulfide ug/kg 96 160888 BDL 45 ---925Carbon tetrachloride ug/kg 111 135514 BDL 65 ---463Chlorobenzene ug/kg 100 125464 BDL 75 ---463Chloroethane ug/kg 109 155503 BDL 40 ---463Chloroform ug/kg 100 125464 BDL 70 ---463Chloromethane ug/kg 87 130403 BDL 50 ---463cis-1,2-Dichloroethene ug/kg 97 125449 BDL 65 ---463cis-1,3-Dichloropropene ug/kg 102 125472 BDL 70 ---463Cyclohexane ug/kg 98 128454 BDL 73 ---463d8-Toluene % Recovery 103 115103 85 ---100Dibromochloromethane ug/kg 98 130452 BDL 65 ---463Dibromofluoromethane % Recovery 103 118103 82 ---100Dichlorodifluoromethane ug/kg 102 135472 BDL 35 ---463Ethylbenzene ug/kg 102 125470 BDL 75 ---463Isopropylbenzene ug/kg 101 130466 BDL 75 ---463m & p-Xylene ug/kg 97 125901 BDL 80 ---925

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Soil

05/29/2016Analytical Run #: Analysis Date:18:02Analysis Time:728359

57445

RLDCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

ABS

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126425Method: SW8260C05/25/201616:20

Methyl acetate ug/kg 281 1761620 318 37 ---463Methyl tert-butyl ether ug/kg 97 140450 BDL 55 ---463Methylcyclohexane ug/kg 98 126456 BDL 73 ---463Methylene chloride ug/kg 97 140451 BDL 55 ---463Naphthalene ug/kg 107 125495 BDL 40 ---463o-Xylene ug/kg 101 125468 BDL 75 ---463Styrene ug/kg 102 125470 BDL 75 ---463Tetrachloroethene ug/kg 104 140482 BDL 65 ---463Toluene ug/kg 105 125485 BDL 70 ---463trans-1,2-Dichloroethene ug/kg 105 135484 BDL 65 ---463trans-1,3-Dichloropropene ug/kg 106 125490 BDL 65 ---463Trichloroethene ug/kg 117 125541 BDL 75 ---463Trichlorofluoromethane ug/kg 126 185584 BDL 25 ---463Vinyl chloride ug/kg 102 125472 BDL 60 ---463

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Water

05/31/2016Analytical Run #: Analysis Date:09:58Analysis Time:729719AGK

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

1,1,1-Trichloroethane ug/L 106 13010.6 65 ---10.01,1,2,2-Tetrachloroethane ug/L 97 1309.72 65 ---10.01,1,2-Trichloroethane ug/L 93 1259.30 75 ---10.01,1-Dichloroethane ug/L 100 13510.0 70 ---10.01,1-Dichloroethene ug/L 99 1309.90 70 ---10.01,2,3-Trichlorobenzene ug/L 95 1409.54 55 ---10.01,2,4-Trichlorobenzene ug/L 97 1359.66 65 ---10.01,2-Dibromo-3-chloropropane ug/L 92 1309.17 50 ---10.01,2-Dibromoethane ug/L 97 1209.66 80 ---10.01,2-Dichlorobenzene ug/L 96 1209.55 70 ---10.01,2-Dichloroethane ug/L 107 13010.7 70 ---10.01,2-Dichloropropane ug/L 96 1259.56 75 ---10.01,3-Dichlorobenzene ug/L 100 12510.0 75 ---10.01,4-Dichloro-2-butene ug/L 109 13010.9 70 ---10.01,4-Dioxane ug/L 140 130700 70 ---500112Trichloro122trifluoroethane ug/L 104 13020.7 70 ---20.02-Butanone ug/L 100 150100 30 ---1002-Hexanone ug/L 104 130104 55 ---1004-Methyl-2-pentanone ug/L 106 135106 60 ---100Acetone ug/L 90 14089.8 40 ---100Benzene ug/L 105 12010.5 80 ---10.0Bromochloromethane ug/L 99 1309.92 65 ---10.0Bromodichloromethane ug/L 103 12010.3 75 ---10.0Bromoform ug/L 103 13010.3 70 ---10.0Bromomethane ug/L 98 1459.85 30 ---10.0Carbon disulfide ug/L 110 16021.9 35 ---20.0Carbon tetrachloride ug/L 107 14010.7 65 ---10.0Chlorobenzene ug/L 102 12010.2 80 ---10.0Chloroethane ug/L 109 13510.9 60 ---10.0Chloroform ug/L 106 13510.6 65 ---10.0Chloromethane ug/L 102 12510.2 40 ---10.0cis-1,2-Dichloroethene ug/L 92 1259.24 70 ---10.0cis-1,3-Dichloropropene ug/L 101 13010.1 70 ---10.0Cyclohexane ug/L 104 13010.4 70 ---10.0Dibromochloromethane ug/L 104 13510.4 60 ---10.0Dichlorodifluoromethane ug/L 109 15510.9 30 ---10.0Ethylbenzene ug/L 107 12510.7 75 ---10.0Isopropylbenzene ug/L 107 12510.7 75 ---10.0m & p-Xylene ug/L 104 13020.8 75 ---20.0Methyl acetate ug/L 96 1309.61 70 ---10.0Methyl tert-butyl ether ug/L 102 12510.2 65 ---10.0Methylcyclohexane ug/L 105 13010.5 70 ---10.0Methylene chloride ug/L 102 14010.2 55 ---10.0

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Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Water

05/31/2016Analytical Run #: Analysis Date:09:58Analysis Time:729719AGK

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

o-Xylene ug/L 103 12010.3 80 ---10.0Styrene ug/L 103 13510.3 65 ---10.0Tetrachloroethene ug/L 104 15010.4 45 ---10.0Toluene ug/L 108 12010.8 75 ---10.0trans-1,2-Dichloroethene ug/L 100 14010.0 60 ---10.0trans-1,3-Dichloropropene ug/L 107 14010.7 55 ---10.0Trichloroethene ug/L 99 1259.88 70 ---10.0Trichlorofluoromethane ug/L 103 14510.3 60 ---10.0Vinyl chloride ug/L 112 14511.2 50 ---10.0

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Project Number: SDG #: 0 Folder #: 119245

Method Blank Water

05/31/2016Analytical Run #: Analysis Date:10:58Analysis Time:729758AGK

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

1,1,1-Trichloroethane ug/L U 0.250.21 01,1,2,2-Tetrachloroethane ug/L U 0.250.19 01,1,2-Trichloroethane ug/L U 0.500.26 01,1-Dichloroethane ug/L U 0.250.20 01,1-Dichloroethene ug/L U 0.250.24 01,2,3-Trichlorobenzene ug/L U 0.50.3 01,2,4-Trichlorobenzene ug/L U 0.50.3 01,2-Dibromo-3-chloropropane ug/L U 0.50.4 01,2-Dibromoethane ug/L U 0.250.16 01,2-Dichlorobenzene ug/L U 0.250.23 01,2-Dichloroethane ug/L U 0.50.3 01,2-Dichloropropane ug/L U 0.250.22 01,3-Dichlorobenzene ug/L U 0.500.26 01,4-Dichloro-2-butene ug/L U 0.250.21 01,4-Dioxane ug/L U 12.55 0112Trichloro122trifluoroethane ug/L U 0.50.5 02-Butanone ug/L U 2.52.4 02-Hexanone ug/L U 54 04-Methyl-2-pentanone ug/L U 53 0Acetone ug/L U 55 0Benzene ug/L U 0.250.19 0Bromochloromethane ug/L U 0.250.19 0Bromodichloromethane ug/L U 0.250.20 0Bromoform ug/L U 0.250.22 0Bromomethane ug/L U 0.50.5 0Carbon disulfide ug/L U 0.50.5 0Carbon tetrachloride ug/L U 0.250.23 0Chlorobenzene ug/L U 0.250.24 0Chloroethane ug/L U 0.50.4 0Chloroform ug/L U 0.250.15 0Chloromethane ug/L U 0.50.4 0cis-1,2-Dichloroethene ug/L U 0.250.25 0cis-1,3-Dichloropropene ug/L U 0.250.19 0Cyclohexane ug/L U 0.500.28 0Dibromochloromethane ug/L U 0.250.19 0Dichlorodifluoromethane ug/L U 0.500.26 0Ethylbenzene ug/L U 0.250.22 0Isopropylbenzene ug/L U 0.250.18 0m & p-Xylene ug/L U 0.50.5 0Methyl acetate ug/L U 0.50.3 0Methyl tert-butyl ether ug/L U 0.500.29 0Methylcyclohexane ug/L U 0.250.23 0Methylene chloride ug/L U 1.00.4 0

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Project Number: SDG #: 0 Folder #: 119245

Method Blank Water

05/31/2016Analytical Run #: Analysis Date:10:58Analysis Time:729758AGK

CTLab #:Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUIDMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

o-Xylene ug/L U 0.250.24 0Styrene ug/L U 0.250.20 0Tetrachloroethene ug/L U 0.50.3 0Toluene ug/L U 0.250.22 0trans-1,2-Dichloroethene ug/L U 0.250.25 0trans-1,3-Dichloropropene ug/L U 0.250.19 0Trichloroethene ug/L U 0.250.21 0Trichlorofluoromethane ug/L U 0.250.20 0Vinyl chloride ug/L U 0.250.18 0

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Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Water

05/31/2016Analytical Run #: Analysis Date:18:51Analysis Time:730243AGK

CTLab #:Analyst:

Prep Batch #:

730241Parent Sample #:Prep Date/Time:

GROUND WATERMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

1,1,1-Trichloroethane ug/L 116 130 1 3011.6 BDL 65 ---10.01,1,2,2-Tetrachloroethane ug/L 105 130 7 3010.5 BDL 65 ---10.01,1,2-Trichloroethane ug/L 100 125 10 309.98 BDL 75 ---10.01,1-Dichloroethane ug/L 103 135 0 3010.3 BDL 70 ---10.01,1-Dichloroethene ug/L 94 130 1 309.45 BDL 70 ---10.01,2 Dichloroethane-d4 % Recovery 103 120103 70 ---1001,2,3-Trichlorobenzene ug/L 91 140 7 309.11 BDL 55 ---10.01,2,4-Trichlorobenzene ug/L 88 135 9 308.77 BDL 65 ---10.01,2-Dibromo-3-chloropropane ug/L 94 130 6 309.39 BDL 50 ---10.01,2-Dibromoethane ug/L 100 120 1 3010.0 BDL 80 ---10.01,2-Dichlorobenzene ug/L 96 120 5 309.63 BDL 70 ---10.01,2-Dichloroethane ug/L 122 130 9 3012.2 BDL 70 ---10.01,2-Dichloropropane ug/L 97 125 0 309.71 BDL 75 ---10.01,3-Dichlorobenzene ug/L 92 125 1 309.24 BDL 75 ---10.01,4-Dichloro-2-butene ug/L 69 130 8 306.93 BDL 70 ---10.01,4-Dioxane ug/L 126 143 55 30629 BDL 50 ---500112Trichloro122trifluoroethane ug/L 94 130 2 3018.8 BDL 70 ---20.02-Butanone ug/L 119 150 23 30119 BDL 30 ---1002-Hexanone ug/L 120 130 12 30120 BDL 55 ---1004-Methyl-2-pentanone ug/L 125 135 11 30125 BDL 60 ---100Acetone ug/L 92 140 46 3091.6 BDL 40 ---100Benzene ug/L 103 120 3 3010.3 BDL 80 ---10.0Bromochloromethane ug/L 92 130 8 309.17 BDL 65 ---10.0Bromodichloromethane ug/L 105 120 1 3010.5 BDL 75 ---10.0Bromofluorobenzene % Recovery 101 120101 75 ---100Bromoform ug/L 92 130 4 309.18 BDL 70 ---10.0Bromomethane ug/L 29 145 31 302.88 BDL 30 ---10.0Carbon disulfide ug/L 100 160 1 3020.0 BDL 35 ---20.0Carbon tetrachloride ug/L 110 140 3 3011.0 BDL 65 ---10.0Chlorobenzene ug/L 100 120 1 309.97 BDL 80 ---10.0Chloroethane ug/L 101 135 1 3010.1 BDL 60 ---10.0Chloroform ug/L 102 135 0 3010.2 BDL 65 ---10.0Chloromethane ug/L 72 125 2 307.17 BDL 40 ---10.0cis-1,2-Dichloroethene ug/L 91 125 4 309.10 BDL 70 ---10.0cis-1,3-Dichloropropene ug/L 105 130 1 3010.5 BDL 70 ---10.0Cyclohexane ug/L 94 129 14 309.44 BDL 77 ---10.0d8-Toluene % Recovery 103 120103 85 ---100Dibromochloromethane ug/L 107 135 10 3010.7 BDL 60 ---10.0Dibromofluoromethane % Recovery 99.0 11599.0 85 ---100Dichlorodifluoromethane ug/L 87 155 0 308.72 BDL 30 ---10.0Ethylbenzene ug/L 106 125 3 3010.6 BDL 75 ---10.0Isopropylbenzene ug/L 105 125 2 3010.5 BDL 75 ---10.0m & p-Xylene ug/L 100 130 4 3020.0 BDL 75 ---20.0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Water

05/31/2016Analytical Run #: Analysis Date:18:51Analysis Time:730243AGK

CTLab #:Analyst:

Prep Batch #:

730241Parent Sample #:Prep Date/Time:

GROUND WATERMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

Methyl acetate ug/L 105 174 21 3010.5 BDL 24 ---10.0Methyl tert-butyl ether ug/L 104 125 8 3010.4 BDL 65 ---10.0Methylcyclohexane ug/L 94 133 0 309.39 BDL 76 ---10.0Methylene chloride ug/L 86 140 6 308.61 BDL 55 ---10.0o-Xylene ug/L 99 120 3 309.94 BDL 80 ---10.0Styrene ug/L 96 135 0 309.61 BDL 65 ---10.0Tetrachloroethene ug/L 98 150 5 309.85 BDL 45 ---10.0Toluene ug/L 105 120 0 3010.5 BDL 75 ---10.0trans-1,2-Dichloroethene ug/L 103 140 2 3010.3 BDL 60 ---10.0trans-1,3-Dichloropropene ug/L 106 140 4 3010.6 BDL 55 ---10.0Trichloroethene ug/L 106 125 5 3010.6 BDL 70 ---10.0Trichlorofluoromethane ug/L 107 145 4 3010.7 BDL 60 ---10.0Vinyl chloride ug/L 91 145 1 309.13 BDL 50 ---10.0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Water

05/31/2016Analytical Run #: Analysis Date:18:22Analysis Time:730241AGK

CTLab #:Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATERMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

1,1,1-Trichloroethane ug/L 115 130 3011.5 BDL 65 ---10.01,1,2,2-Tetrachloroethane ug/L 98 130 309.75 BDL 65 ---10.01,1,2-Trichloroethane ug/L 110 125 3011.0 BDL 75 ---10.01,1-Dichloroethane ug/L 103 135 3010.3 BDL 70 ---10.01,1-Dichloroethene ug/L 94 130 309.40 BDL 70 ---10.01,2 Dichloroethane-d4 % Recovery 97.0 12097.0 70 ---1001,2,3-Trichlorobenzene ug/L 85 140 308.47 BDL 55 ---10.01,2,4-Trichlorobenzene ug/L 80 135 308.03 BDL 65 ---10.01,2-Dibromo-3-chloropropane ug/L 88 130 308.83 BDL 50 ---10.01,2-Dibromoethane ug/L 99 120 309.91 BDL 80 ---10.01,2-Dichlorobenzene ug/L 92 120 309.20 BDL 70 ---10.01,2-Dichloroethane ug/L 111 130 3011.1 BDL 70 ---10.01,2-Dichloropropane ug/L 97 125 309.74 BDL 75 ---10.01,3-Dichlorobenzene ug/L 92 125 309.17 BDL 75 ---10.01,4-Dichloro-2-butene ug/L 64 130 306.37 BDL 70 ---10.01,4-Dioxane ug/L 72 143 30358 BDL 50 ---500112Trichloro122trifluoroethane ug/L 92 130 3018.4 BDL 70 ---20.02-Butanone ug/L 95 150 3095.2 BDL 30 ---1002-Hexanone ug/L 106 130 30106 BDL 55 ---1004-Methyl-2-pentanone ug/L 112 135 30112 BDL 60 ---100Acetone ug/L 57 140 3057.2 BDL 40 ---100Benzene ug/L 106 120 3010.6 BDL 80 ---10.0Bromochloromethane ug/L 99 130 309.89 BDL 65 ---10.0Bromodichloromethane ug/L 105 120 3010.5 BDL 75 ---10.0Bromofluorobenzene % Recovery 98.0 12098.0 75 ---100Bromoform ug/L 88 130 308.85 BDL 70 ---10.0Bromomethane ug/L 21 145 302.11 BDL 30 ---10.0Carbon disulfide ug/L 98 160 3019.7 BDL 35 ---20.0Carbon tetrachloride ug/L 107 140 3010.7 BDL 65 ---10.0Chlorobenzene ug/L 101 120 3010.1 BDL 80 ---10.0Chloroethane ug/L 103 135 3010.3 BDL 60 ---10.0Chloroform ug/L 103 135 3010.3 BDL 65 ---10.0Chloromethane ug/L 70 125 307.05 BDL 40 ---10.0cis-1,2-Dichloroethene ug/L 94 125 309.45 BDL 70 ---10.0cis-1,3-Dichloropropene ug/L 103 130 3010.3 BDL 70 ---10.0Cyclohexane ug/L 108 129 3010.8 BDL 77 ---10.0d8-Toluene % Recovery 102 120102 85 ---100Dibromochloromethane ug/L 97 135 309.67 BDL 60 ---10.0Dibromofluoromethane % Recovery 99.0 11599.0 85 ---100Dichlorodifluoromethane ug/L 88 155 308.76 BDL 30 ---10.0Ethylbenzene ug/L 109 125 3010.9 BDL 75 ---10.0Isopropylbenzene ug/L 108 125 3010.8 BDL 75 ---10.0m & p-Xylene ug/L 104 130 3020.9 BDL 75 ---20.0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Water

05/31/2016Analytical Run #: Analysis Date:18:22Analysis Time:730241AGK

CTLab #:Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATERMatrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126505Method: SW8260C

Methyl acetate ug/L 85 174 308.50 BDL 24 ---10.0Methyl tert-butyl ether ug/L 96 125 309.61 BDL 65 ---10.0Methylcyclohexane ug/L 94 133 309.36 BDL 76 ---10.0Methylene chloride ug/L 81 140 308.12 BDL 55 ---10.0o-Xylene ug/L 103 120 3010.3 BDL 80 ---10.0Styrene ug/L 96 135 309.60 BDL 65 ---10.0Tetrachloroethene ug/L 104 150 3010.4 BDL 45 ---10.0Toluene ug/L 104 120 3010.4 BDL 75 ---10.0trans-1,2-Dichloroethene ug/L 105 140 3010.5 BDL 60 ---10.0trans-1,3-Dichloropropene ug/L 102 140 3010.2 BDL 55 ---10.0Trichloroethene ug/L 101 125 3010.1 BDL 70 ---10.0Trichlorofluoromethane ug/L 103 145 3010.3 BDL 60 ---10.0Vinyl chloride ug/L 92 145 309.25 BDL 50 ---10.0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Water

06/02/2016Analytical Run #: Analysis Date:14:49Analysis Time:728571

57456

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126587Method: SW808205/27/201611:00

Aroclor-1016 ug/L 81 129 304.03 46 ---5.00Aroclor-1221 0 130 300 70 ---5.00Aroclor-1232 0 130 300 70 ---5.00Aroclor-1242 0 130 300 70 ---5.00Aroclor-1248 0 130 300 70 ---5.00Aroclor-1254 0 127 300 34 ---5.00Aroclor-1260 ug/L 80 134 303.98 45 ---5.00Aroclor-1262 0 130 300 70 ---5.00Aroclor-1268 0 130 300 70 ---5.00

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Project Number: SDG #: 0 Folder #: 119245

Method Blank Water

06/02/2016Analytical Run #: Analysis Date:14:30Analysis Time:728570

57456

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126587Method: SW808205/27/201611:00

Aroclor-1016 ug/L U 0.500.113 0Aroclor-1221 ug/L U 0.500.085 0Aroclor-1232 ug/L U 0.500.145 0Aroclor-1242 ug/L U 0.500.096 0Aroclor-1248 ug/L U 0.500.088 0Aroclor-1254 ug/L U 0.500.094 0Aroclor-1260 ug/L U 0.500.099 0Aroclor-1262 ug/L U 0.500.28 0Aroclor-1268 ug/L U 0.500.056 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Water

06/02/2016Analytical Run #: Analysis Date:17:24Analysis Time:728574

57456

JJYCTLab #:

Analyst:

Prep Batch #:

728573Parent Sample #:Prep Date/Time:

GROUND WATER

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126587Method: SW808205/27/201611:00

Aroclor-1016 ug/L 88 129 16 309.78 BDL 46 ---11.1Aroclor-1221 U 0 130 0 300.189 BDL 70 ---11.1Aroclor-1232 U 0 130 0 300.322 BDL 70 ---11.1Aroclor-1242 U 0 130 0 300.213 BDL 70 ---11.1Aroclor-1248 U 0 130 0 300.196 BDL 70 ---11.1Aroclor-1254 U 0 127 0 300.209 BDL 34 ---11.1Aroclor-1260 ug/L 89 134 21 309.84 BDL 45 ---11.1Aroclor-1262 U 0 130 0 300.622 BDL 70 ---11.1Aroclor-1268 U 0 130 0 300.124 BDL 70 ---11.1Surr: 2,4,5,6-TCMX % Recovery 89.9 14689.9 36 ---100Surr: DCBP % Recovery 104 145104 62 ---100

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Water

06/02/2016Analytical Run #: Analysis Date:17:04Analysis Time:728573

57456

JJYCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126587Method: SW808205/27/201611:00

Aroclor-1016 ug/L 104 12911.5 BDL 46 ---11.1Aroclor-1221 U 0 1300.189 BDL 70 ---11.1Aroclor-1232 U 0 1300.322 BDL 70 ---11.1Aroclor-1242 U 0 1300.213 BDL 70 ---11.1Aroclor-1248 U 0 1300.196 BDL 70 ---11.1Aroclor-1254 U 0 1270.209 BDL 34 ---11.1Aroclor-1260 ug/L 110 13412.2 BDL 45 ---11.1Aroclor-1262 U 0 1300.622 BDL 70 ---11.1Aroclor-1268 U 0 1300.124 BDL 70 ---11.1Surr: 2,4,5,6-TCMX % Recovery 103 146103 36 ---100Surr: DCBP % Recovery 120 145120 62 ---100

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Water

06/06/2016Analytical Run #: Analysis Date:23:31Analysis Time:728576

57457

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126588Method: SW808105/27/201611:00

4,4'-DDD ug/L 118 150 300.474 25 ---0.4004,4'-DDE ug/L 118 140 300.473 35 ---0.4004,4'-DDT ug/L 115 140 300.459 45 ---0.400Aldrin ug/L 108 140 300.433 25 ---0.400alpha-BHC ug/L 114 130 300.454 60 ---0.400alpha-Chlordane ug/L 116 125 300.465 65 ---0.400beta-BHC ug/L 119 125 300.475 65 ---0.400Chlordane (Technical) ug/L 87 122 302.18 72 ---2.50delta-BHC ug/L 115 135 300.459 45 ---0.400Dieldrin ug/L 118 130 300.470 60 ---0.400Endosulfan I ug/L 116 110 300.462 50 ---0.400Endosulfan II ug/L 118 130 300.473 30 ---0.400Endosulfan sulfate ug/L 120 135 300.480 55 ---0.400Endrin ug/L 120 135 300.481 55 ---0.400Endrin aldehyde ug/L 111 135 300.445 55 ---0.400Endrin ketone ug/L 118 125 300.474 75 ---0.400gamma-Chlordane ug/L 116 125 300.465 60 ---0.400Heptachlor ug/L 115 130 300.460 40 ---0.400Heptachlor epoxide ug/L 115 130 300.460 60 ---0.400Lindane ug/L 115 135 300.459 25 ---0.400Methoxychlor ug/L 119 150 300.476 55 ---0.400Toxaphene ug/L 87 129 302.17 73 ---2.50

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Method Blank Water

06/06/2016Analytical Run #: Analysis Date:23:15Analysis Time:728575

57457

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126588Method: SW808105/27/201611:00

4,4'-DDD ug/L U 0.0120.006 04,4'-DDE ug/L U 0.0200.006 04,4'-DDT ug/L U 0.0120.007 0Aldrin ug/L U 0.0120.006 0alpha-BHC ug/L U 0.0120.005 0alpha-Chlordane ug/L U 0.0200.009 0beta-BHC ug/L U 0.0200.009 0Chlordane (Technical) ug/L U 0.3000.102 0delta-BHC ug/L U 0.0120.005 0Dieldrin ug/L U 0.0120.006 0Endosulfan I ug/L U 0.0200.009 0Endosulfan II ug/L U 0.0120.007 0Endosulfan sulfate ug/L U 0.0120.006 0Endrin ug/L U 0.0120.006 0Endrin aldehyde ug/L U 0.0200.009 0Endrin ketone ug/L U 0.0120.007 0gamma-Chlordane ug/L U 0.0120.007 0Heptachlor ug/L U 0.0120.006 0Heptachlor epoxide ug/L U 0.0120.007 0Lindane ug/L U 0.0120.007 0Methoxychlor ug/L U 0.0200.006 0Toxaphene ug/L U 0.3000.176 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Water

06/07/2016Analytical Run #: Analysis Date:01:25Analysis Time:728579

57457

JJYCTLab #:

Analyst:

Prep Batch #:

728578Parent Sample #:Prep Date/Time:

GROUND WATER

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126588Method: SW808105/27/201611:00

4,4'-DDD ug/L 109 150 0 300.948 BDL 25 ---0.8704,4'-DDE ug/L 105 140 1 300.913 BDL 35 ---0.8704,4'-DDT ug/L 107 140 3 300.928 BDL 45 ---0.870Aldrin ug/L 91 140 4 300.789 BDL 25 ---0.870alpha-BHC ug/L 95 130 5 300.824 BDL 60 ---0.870alpha-Chlordane ug/L 96 125 2 300.837 BDL 65 ---0.870beta-BHC ug/L 99 125 2 300.863 BDL 65 ---0.870Chlordane (Technical) ug/L U 0 150 0 300.222 BDL 50 ---0.870delta-BHC ug/L 102 135 1 300.887 BDL 45 ---0.870Dieldrin ug/L 101 130 4 300.883 BDL 60 ---0.870Endosulfan I ug/L 95 110 3 300.824 BDL 50 ---0.870Endosulfan II ug/L 107 130 1 300.935 BDL 30 ---0.870Endosulfan sulfate ug/L 109 135 0 300.948 BDL 55 ---0.870Endrin ug/L 111 135 3 300.965 BDL 55 ---0.870Endrin aldehyde ug/L 103 135 1 300.898 BDL 55 ---0.870Endrin ketone ug/L 107 125 1 300.930 BDL 75 ---0.870gamma-Chlordane ug/L 95 125 2 300.828 BDL 60 ---0.870Heptachlor ug/L 88 130 4 300.763 BDL 40 ---0.870Heptachlor epoxide ug/L 95 130 2 300.830 BDL 60 ---0.870Lindane ug/L 97 125 5 300.841 BDL 60 ---0.870Methoxychlor ug/L 118 150 2 301.03 BDL 55 ---0.870SURR:2,4,5,6-CL4-m-xylene % Recovery 76.1 140 3076.1 25 ---100SURR:Decachlorobiphenyl % Recovery 85.0 135 3085.0 30 ---100Toxaphene ug/L U 0 150 0 300.383 BDL 50 ---0.870

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Water

06/07/2016Analytical Run #: Analysis Date:01:09Analysis Time:728578

57457

JJYCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126588Method: SW808105/27/201611:00

4,4'-DDD ug/L 109 1500.952 BDL 25 ---0.8704,4'-DDE ug/L 106 1400.926 BDL 35 ---0.8704,4'-DDT ug/L 109 1400.952 BDL 45 ---0.870Aldrin ug/L 94 1400.820 BDL 25 ---0.870alpha-BHC ug/L 99 1300.867 <0.0109 60 ---0.870alpha-Chlordane ug/L 99 1250.857 BDL 65 ---0.870beta-BHC ug/L 101 1250.883 BDL 65 ---0.870Chlordane (Technical) ug/L U 0 1500.222 BDL 50 ---0.870delta-BHC ug/L 103 1350.896 BDL 45 ---0.870Dieldrin ug/L 106 1300.920 BDL 60 ---0.870Endosulfan I ug/L 98 1100.850 BDL 50 ---0.870Endosulfan II ug/L 108 1300.941 BDL 30 ---0.870Endosulfan sulfate ug/L 109 1350.950 BDL 55 ---0.870Endrin ug/L 114 1350.996 BDL 55 ---0.870Endrin aldehyde ug/L 102 1350.891 BDL 55 ---0.870Endrin ketone ug/L 108 1250.941 BDL 75 ---0.870gamma-Chlordane ug/L 97 1250.843 BDL 60 ---0.870Heptachlor ug/L 91 1300.791 BDL 40 ---0.870Heptachlor epoxide ug/L 97 1300.846 BDL 60 ---0.870Lindane ug/L 101 1250.883 BDL 60 ---0.870Methoxychlor ug/L 121 1501.05 BDL 55 ---0.870SURR:2,4,5,6-CL4-m-xylene % Recovery 79.5 14079.5 25 ---100SURR:Decachlorobiphenyl % Recovery 85.1 13585.1 30 ---100Toxaphene ug/L U 0 1500.383 BDL 50 ---0.870

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Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Water

06/01/2016Analytical Run #: Analysis Date:16:48Analysis Time:728581

57458

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

1,1'-Biphenyl ug/L 82 150 3016.3 50 ---20.01,2,4,5-Tetrachlorobenzene ug/L 74 110 3014.7 40 ---20.02,4,5-Trichlorophenol ug/L 84 110 3016.9 50 ---20.02,4,6-Trichlorophenol ug/L 82 115 3016.3 50 ---20.02,4-Dichlorophenol ug/L 80 105 3016.0 50 ---20.02,4-Dimethylphenol ug/L 74 110 3014.8 30 ---20.02,4-Dinitrophenol ug/L 86 140 3017.1 15 ---20.02,4-Dinitrotoluene ug/L 90 120 3018.1 50 ---20.02,6-Dinitrotoluene ug/L 87 115 3017.4 50 ---20.02-Chloronaphthalene ug/L 74 105 3014.8 50 ---20.02-Chlorophenol ug/L 74 105 3014.8 35 ---20.02-Methylnaphthalene ug/L 75 105 3015.0 45 ---20.02-Methylphenol ug/L 70 110 3013.9 40 ---20.02-Nitroaniline ug/L 86 115 3017.2 50 ---20.02-Nitrophenol ug/L 78 115 3015.7 40 ---20.03 & 4-Methylphenol ug/L 67 110 3013.4 30 ---20.03,3'-Dichlorobenzidine ug/L 76 110 3015.1 20 ---20.03-Nitroaniline ug/L 76 125 3015.1 20 ---20.04,6-Dinitro-2-methylphenol ug/L 92 130 3018.5 40 ---20.04-Bromophenyl-phenyl ether ug/L 88 115 3017.6 50 ---20.04-Chloro-3-methylphenol ug/L 84 110 3016.8 45 ---20.04-Chloroaniline ug/L 72 110 3014.4 15 ---20.04-Chlorophenyl-phenyl ether ug/L 84 110 3016.9 50 ---20.04-Nitroaniline ug/L 89 120 3017.8 35 ---20.04-Nitrophenol ug/L 49 125 309.80 0 ---20.0Acenaphthene ug/L 78 110 3015.6 45 ---20.0Acenaphthylene ug/L 78 105 3015.6 50 ---20.0Acetophenone ug/L 78 124 3015.6 40 ---20.0Anthracene ug/L 90 110 3018.1 55 ---20.0Atrazine ug/L 100 150 3020.1 50 ---20.0Benzaldehyde ug/L 70 118 3013.9 15 ---20.0Benzo(a)anthracene ug/L 90 110 3017.9 55 ---20.0Benzo(a)pyrene ug/L 86 110 3017.3 55 ---20.0Benzo(b)fluoranthene ug/L 87 120 3017.4 45 ---20.0Benzo(g,h,i)perylene ug/L 84 125 3016.8 40 ---20.0Benzo(k)fluoranthene ug/L 86 125 3017.2 45 ---20.0Bis(2-chloroethoxy)methane ug/L 79 105 3015.8 45 ---20.0Bis(2-chloroethyl)ether ug/L 74 110 3014.7 35 ---20.0Bis(2-chloroisopropyl)ether ug/L 74 130 3014.8 25 ---20.0Bis(2-ethylhexyl)phthalate ug/L 89 125 3017.8 40 ---20.0Butylbenzylphthalate ug/L 90 115 3018.0 45 ---20.0Caprolactam ug/L 33 120 306.53 10 ---20.0Carbazole ug/L 92 115 3018.4 50 ---20.0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Water

06/01/2016Analytical Run #: Analysis Date:16:48Analysis Time:728581

57458

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

Chrysene ug/L 88 110 3017.7 55 ---20.0Di-n-butylphthalate ug/L 92 115 3018.4 55 ---20.0Di-n-octylphthalate ug/L 89 135 3017.8 35 ---20.0Dibenzo(a,h)anthracene ug/L 84 125 3016.7 40 ---20.0Dibenzofuran ug/L 82 105 3016.4 55 ---20.0Diethylphthalate ug/L 87 120 3017.4 40 ---20.0Dimethylphthalate ug/L 86 125 3017.2 25 ---20.0Fluoranthene ug/L 92 115 3018.4 55 ---20.0Fluorene ug/L 83 110 3016.6 50 ---20.0Hexachlorobenzene ug/L 88 110 3017.6 50 ---20.0Hexachlorobutadiene ug/L 70 105 3013.9 25 ---20.0Hexachlorocyclopentadiene ug/L 67 113 3013.4 45 ---20.0Hexachloroethane ug/L 68 95 3013.5 30 ---20.0Indeno(1,2,3-cd)pyrene ug/L 82 125 3016.5 45 ---20.0Isophorone ug/L 78 110 3015.5 50 ---20.0N-Nitroso-di-n-propylamine ug/L 78 130 3015.7 35 ---20.0N-Nitrosodiphenylamine & Diphn ug/L 89 110 3035.7 50 ---40.0Naphthalene ug/L 75 100 3015.0 40 ---20.0Nitrobenzene ug/L 78 110 3015.5 45 ---20.0Pentachlorophenol ug/L 98 115 3019.7 40 ---20.0Phenanthrene ug/L 89 115 3017.8 50 ---20.0Phenol ug/L 38 115 307.58 0 ---20.0Pyrene ug/L 88 130 3017.6 50 ---20.0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Water

06/01/2016Analytical Run #: Analysis Date:16:25Analysis Time:728580

57458

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

1,1'-Biphenyl ug/L U 2.000.151,2,4,5-Tetrachlorobenzene ug/L U 0.500.17 02,4,5-Trichlorophenol ug/L U 2.51.1 02,4,6-Trichlorophenol ug/L U 2.51.0 02,4-Dichlorophenol ug/L U 2.51.0 02,4-Dimethylphenol ug/L U 2.50.82 02,4-Dinitrophenol ug/L U 5.01.5 02,4-Dinitrotoluene ug/L U 0.500.21 02,6-Dinitrotoluene ug/L U 0.500.28 02-Chloronaphthalene ug/L U 0.500.18 02-Chlorophenol ug/L U 2.50.87 02-Methylnaphthalene ug/L U 0.500.17 02-Methylphenol ug/L U 2.50.86 02-Nitroaniline ug/L U 1.000.22 02-Nitrophenol ug/L U 2.50.90 03 & 4-Methylphenol ug/L U 4.51.4 03,3'-Dichlorobenzidine ug/L U 1.250.66 03-Nitroaniline ug/L U 1.000.26 04,6-Dinitro-2-methylphenol ug/L U 5.01.6 04-Bromophenyl-phenyl ether ug/L U 1.000.20 04-Chloro-3-methylphenol ug/L U 2.500.76 04-Chloroaniline ug/L U 0.500.12 04-Chlorophenyl-phenyl ether ug/L U 0.500.18 04-Nitroaniline ug/L U 0.500.15 04-Nitrophenol ug/L U 5.01.1 0Acenaphthene ug/L U 0.500.18 0Acenaphthylene ug/L U 0.500.17 0Acetophenone ug/L U 0.500.27 0Anthracene ug/L U 0.500.11 0Atrazine ug/L U 0.500.26Benzaldehyde ug/L U 0.500.25Benzo(a)anthracene ug/L U 0.500.12 0Benzo(a)pyrene ug/L U 0.500.14 0Benzo(b)fluoranthene ug/L U 0.500.17 0Benzo(g,h,i)perylene ug/L U 0.500.21 0Benzo(k)fluoranthene ug/L U 0.500.20 0Bis(2-chloroethoxy)methane ug/L U 0.500.19 0Bis(2-chloroethyl)ether ug/L U 0.500.21 0Bis(2-chloroisopropyl)ether ug/L U 0.500.22 0Bis(2-ethylhexyl)phthalate ug/L U 1.000.44 0Butylbenzylphthalate ug/L U 1.000.47 0Caprolactam ug/L U 1.000.19Carbazole ug/L U 0.500.12 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Water

06/01/2016Analytical Run #: Analysis Date:16:25Analysis Time:728580

57458

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

LIQUID

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

Chrysene ug/L U 0.500.16 0Di-n-butylphthalate ug/L U 2.000.67 0Di-n-octylphthalate ug/L U 1.000.49 0Dibenzo(a,h)anthracene ug/L U 0.500.17 0Dibenzofuran ug/L U 0.500.19 0Diethylphthalate ug/L U 1.000.45 0Dimethylphthalate ug/L U 1.000.54 0Fluoranthene ug/L U 0.500.13 0Fluorene ug/L U 0.500.19 0Hexachlorobenzene ug/L U 0.500.27 0Hexachlorobutadiene ug/L U 0.500.18 0Hexachlorocyclopentadiene ug/L U 1.000.26 0Hexachloroethane ug/L U 0.500.22 0Indeno(1,2,3-cd)pyrene ug/L U 0.500.18 0Isophorone ug/L U 0.500.18 0N-Nitroso-di-n-propylamine ug/L U 0.500.18 0N-Nitrosodiphenylamine & Diphn ug/L U 1.000.36 0Naphthalene ug/L U 0.500.18 0Nitrobenzene ug/L U 0.500.16 0Pentachlorophenol ug/L U 2.51.1 0Phenanthrene ug/L U 0.500.30 0Phenol ug/L U 2.500.48 0Pyrene ug/L U 0.500.13 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Water

06/01/2016Analytical Run #: Analysis Date:18:38Analysis Time:728584

57458

RPNCTLab #:

Analyst:

Prep Batch #:

728583Parent Sample #:Prep Date/Time:

GROUND WATER

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

1,1'-Biphenyl ug/L 74 150 2 3031.7 BDL 50 ---42.61,2,4,5-Tetrachlorobenzene ug/L 66 111 2 3028.1 BDL 51 ---42.62,4,5-Trichlorophenol ug/L 78 110 1 3033.1 BDL 50 ---42.62,4,6-Trichlorophenol ug/L 74 115 2 3031.7 BDL 50 ---42.62,4-Dichlorophenol ug/L 73 105 2 3030.9 BDL 50 ---42.62,4-Dimethylphenol ug/L 54 110 13 3022.8 BDL 30 ---42.62,4-Dinitrophenol ug/L 85 140 2 3036.0 BDL 15 ---42.62,4-Dinitrotoluene ug/L 82 120 3 3034.8 BDL 50 ---42.62,6-Dinitrotoluene ug/L 75 115 3 3032.1 BDL 50 ---42.62-Chloronaphthalene ug/L 68 105 2 3029.1 BDL 50 ---42.62-Chlorophenol ug/L 67 105 0 3028.5 BDL 35 ---42.62-Methylnaphthalene ug/L 68 105 3 3028.9 BDL 45 ---42.62-Methylphenol ug/L 66 110 3 3028.0 BDL 40 ---42.62-Nitroaniline ug/L 65 115 7 3027.6 BDL 50 ---42.62-Nitrophenol ug/L 72 115 4 3030.6 BDL 40 ---42.63 & 4-Methylphenol ug/L 69 110 1 3029.3 BDL 30 ---42.63,3'-Dichlorobenzidine ug/L U 0 110 0 301.40 BDL 20 ---42.63-Nitroaniline ug/L 34 125 14 3014.4 BDL 20 ---42.64,6-Dinitro-2-methylphenol ug/L 84 130 2 3035.9 BDL 40 ---42.64-Bromophenyl-phenyl ether ug/L 77 115 2 3032.9 BDL 50 ---42.64-Chloro-3-methylphenol ug/L 77 110 3 3032.8 BDL 45 ---42.64-Chloroaniline ug/L 30 110 8 3012.7 BDL 15 ---42.64-Chlorophenyl-phenyl ether ug/L 74 110 1 3031.5 BDL 50 ---42.64-Nitroaniline ug/L 47 120 10 3019.9 BDL 35 ---42.64-Nitrophenol ug/L 74 125 2 3031.4 BDL 1 ---42.6Acenaphthene ug/L 70 110 1 3029.8 BDL 45 ---42.6Acenaphthylene ug/L 69 105 1 3029.6 BDL 50 ---42.6Acetophenone ug/L 69 141 2 3029.6 BDL 38 ---42.6Anthracene ug/L 77 110 4 3032.6 BDL 55 ---42.6Atrazine ug/L 88 150 3 3037.5 BDL 50 ---42.6Benzaldehyde ug/L 57 324.4 BDL ---42.6Benzo(a)anthracene ug/L 79 110 2 3033.7 BDL 55 ---42.6Benzo(a)pyrene ug/L 72 110 8 3030.5 BDL 55 ---42.6Benzo(b)fluoranthene ug/L 77 120 1 3032.7 BDL 45 ---42.6Benzo(g,h,i)perylene ug/L 74 125 8 3031.6 BDL 40 ---42.6Benzo(k)fluoranthene ug/L 74 125 5 3031.5 BDL 45 ---42.6Bis(2-chloroethoxy)methane ug/L 71 105 1 3030.3 BDL 45 ---42.6Bis(2-chloroethyl)ether ug/L 63 110 1 3027.0 BDL 35 ---42.6Bis(2-chloroisopropyl)ether ug/L 68 130 2 3028.8 BDL 25 ---42.6Bis(2-ethylhexyl)phthalate ug/L 86 125 1 3036.5 BDL 40 ---42.6Butylbenzylphthalate ug/L 82 115 1 3034.8 BDL 45 ---42.6Caprolactam ug/L 53 120 3 3022.7 BDL 10 ---42.6Carbazole ug/L 80 115 3 3034.0 BDL 50 ---42.6

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Water

06/01/2016Analytical Run #: Analysis Date:18:38Analysis Time:728584

57458

RPNCTLab #:

Analyst:

Prep Batch #:

728583Parent Sample #:Prep Date/Time:

GROUND WATER

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

Chrysene ug/L 78 110 6 3033.4 BDL 55 ---42.6Di-n-butylphthalate ug/L 84 115 3 3035.7 BDL 55 ---42.6Di-n-octylphthalate ug/L 83 115 2 3035.4 BDL 35 ---42.6Dibenzo(a,h)anthracene ug/L 73 125 6 3031.2 BDL 40 ---42.6Dibenzofuran ug/L 73 105 2 3031.0 BDL 55 ---42.6Diethylphthalate ug/L 79 120 0 3033.6 BDL 40 ---42.6Dimethylphthalate ug/L 77 125 3 3032.7 BDL 25 ---42.6Fluoranthene ug/L 79 115 4 3033.8 BDL 55 ---42.6Fluorene ug/L 72 110 3 3030.6 BDL 50 ---42.6Hexachlorobenzene ug/L 76 110 3 3032.3 BDL 50 ---42.6Hexachlorobutadiene ug/L 63 105 4 3026.8 BDL 25 ---42.6Hexachlorocyclopentadiene ug/L 64 106 6 3027.3 BDL 36 ---42.6Hexachloroethane ug/L 62 95 0 3026.2 BDL 30 ---42.6Indeno(1,2,3-cd)pyrene ug/L 73 125 6 3031.1 BDL 45 ---42.6Isophorone ug/L 71 110 2 3030.1 BDL 50 ---42.6N-Nitroso-di-n-propylamine ug/L 69 130 2 3029.3 BDL 35 ---42.6N-Nitrosodiphenylamine & Diphn ug/L 76 110 2 3064.8 BDL 50 ---85.1Naphthalene ug/L 67 100 3 3028.6 BDL 40 ---42.6Nitrobenzene ug/L 78 110 4 3033.4 BDL 45 ---42.6Pentachlorophenol ug/L 96 115 1 3040.8 BDL 40 ---42.6Phenanthrene ug/L 78 115 4 3033.1 BDL 50 ---42.6Phenol ug/L 48 115 1 3020.5 BDL 1 ---42.6Pyrene ug/L 79 130 3 3033.5 BDL 50 ---42.6Surr: 2,4,6-Tribromophenol % Recovery 79.9 12579.9 40 ---100Surr: 2-Fluorobiphenyl % Recovery 67.8 11067.8 50 ---100Surr: 2-Fluorophenol % Recovery 55.9 11055.9 20 ---100Surr: Nitrobenzene-d5 % Recovery 67.1 11067.1 40 ---100Surr: Phenol-d5 % Recovery 46.7 11546.7 10 ---100Surr: Terphenyl-d14 % Recovery 77.7 13577.7 50 ---100

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Water

06/01/2016Analytical Run #: Analysis Date:17:54Analysis Time:728583

57458

RPNCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

1,1'-Biphenyl ug/L 73 15031.1 BDL 50 ---42.61,2,4,5-Tetrachlorobenzene ug/L 64 11127.4 BDL 51 ---42.62,4,5-Trichlorophenol ug/L 78 11033.3 BDL 50 ---42.62,4,6-Trichlorophenol ug/L 76 11532.5 BDL 50 ---42.62,4-Dichlorophenol ug/L 72 10530.5 BDL 50 ---42.62,4-Dimethylphenol ug/L 61 11025.9 BDL 30 ---42.62,4-Dinitrophenol ug/L 87 14036.9 BDL 15 ---42.62,4-Dinitrotoluene ug/L 84 12035.8 BDL 50 ---42.62,6-Dinitrotoluene ug/L 78 11533.1 BDL 50 ---42.62-Chloronaphthalene ug/L 67 10528.4 BDL 50 ---42.62-Chlorophenol ug/L 66 10528.3 BDL 35 ---42.62-Methylnaphthalene ug/L 66 10528.1 BDL 45 ---42.62-Methylphenol ug/L 64 11027.2 BDL 40 ---42.62-Nitroaniline ug/L 69 11529.5 BDL 50 ---42.62-Nitrophenol ug/L 69 11529.5 BDL 40 ---42.63 & 4-Methylphenol ug/L 70 11029.7 BDL 30 ---42.63,3'-Dichlorobenzidine ug/L U 0 1101.40 BDL 20 ---42.63-Nitroaniline ug/L 39 12516.7 BDL 20 ---42.64,6-Dinitro-2-methylphenol ug/L 86 13036.7 BDL 40 ---42.64-Bromophenyl-phenyl ether ug/L 78 11533.4 BDL 50 ---42.64-Chloro-3-methylphenol ug/L 80 11033.9 BDL 45 ---42.64-Chloroaniline ug/L 32 11013.7 BDL 15 ---42.64-Chlorophenyl-phenyl ether ug/L 75 11031.9 BDL 50 ---42.64-Nitroaniline ug/L 52 12022.0 BDL 35 ---42.64-Nitrophenol ug/L 72 12530.7 BDL 1 ---42.6Acenaphthene ug/L 71 11030.1 BDL 45 ---42.6Acenaphthylene ug/L 70 10529.8 BDL 50 ---42.6Acetophenone ug/L 68 14129.0 BDL 38 ---42.6Anthracene ug/L 80 11033.9 BDL 55 ---42.6Atrazine ug/L 91 15038.6 BDL 50 ---42.6Benzaldehyde 023.6 <0.532 ---0Benzo(a)anthracene ug/L 81 11034.3 BDL 55 ---42.6Benzo(a)pyrene ug/L 77 11033.0 BDL 55 ---42.6Benzo(b)fluoranthene ug/L 77 12033.0 BDL 45 ---42.6Benzo(g,h,i)perylene ug/L 81 12534.3 BDL 40 ---42.6Benzo(k)fluoranthene ug/L 78 12533.2 BDL 45 ---42.6Bis(2-chloroethoxy)methane ug/L 70 10529.8 BDL 45 ---42.6Bis(2-chloroethyl)ether ug/L 63 11026.7 BDL 35 ---42.6Bis(2-chloroisopropyl)ether ug/L 66 13028.3 BDL 25 ---42.6Bis(2-ethylhexyl)phthalate ug/L 83 12536.0 <0.936 40 ---42.6Butylbenzylphthalate ug/L 83 11535.4 BDL 45 ---42.6Caprolactam ug/L 52 12022.0 BDL 10 ---42.6Carbazole ug/L 82 11534.9 BDL 50 ---42.6

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Water

06/01/2016Analytical Run #: Analysis Date:17:54Analysis Time:728583

57458

RPNCTLab #:

Analyst:

Prep Batch #:

727910Parent Sample #:Prep Date/Time:

GROUND WATER

AJZ

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126625Method: SW827005/27/201615:00

Chrysene ug/L 83 11035.5 BDL 55 ---42.6Di-n-butylphthalate ug/L 79 11534.8 <1.43 55 ---42.6Di-n-octylphthalate ug/L 85 11536.1 BDL 35 ---42.6Dibenzo(a,h)anthracene ug/L 78 12533.2 BDL 40 ---42.6Dibenzofuran ug/L 74 10531.5 BDL 55 ---42.6Diethylphthalate ug/L 79 12033.6 BDL 40 ---42.6Dimethylphthalate ug/L 79 12533.7 BDL 25 ---42.6Fluoranthene ug/L 83 11535.3 BDL 55 ---42.6Fluorene ug/L 74 11031.4 BDL 50 ---42.6Hexachlorobenzene ug/L 78 11033.3 BDL 50 ---42.6Hexachlorobutadiene ug/L 60 10525.7 BDL 25 ---42.6Hexachlorocyclopentadiene ug/L 61 10625.8 BDL 36 ---42.6Hexachloroethane ug/L 62 9526.2 BDL 30 ---42.6Indeno(1,2,3-cd)pyrene ug/L 77 12533.0 BDL 45 ---42.6Isophorone ug/L 69 11029.6 BDL 50 ---42.6N-Nitroso-di-n-propylamine ug/L 70 13029.8 BDL 35 ---42.6N-Nitrosodiphenylamine & Diphn ug/L 78 11066.2 BDL 50 ---85.1Naphthalene ug/L 65 10027.8 BDL 40 ---42.6Nitrobenzene ug/L 75 11032.0 BDL 45 ---42.6Pentachlorophenol ug/L 96 11541.1 BDL 40 ---42.6Phenanthrene ug/L 81 11534.5 BDL 50 ---42.6Phenol ug/L 48 11520.6 BDL 1 ---42.6Pyrene ug/L 80 13034.4 <0.277 50 ---42.6Surr: 2,4,6-Tribromophenol % Recovery 79.9 12579.9 40 ---100Surr: 2-Fluorobiphenyl % Recovery 65.4 11065.4 50 ---100Surr: 2-Fluorophenol % Recovery 54.1 11054.1 20 ---100Surr: Nitrobenzene-d5 % Recovery 64.1 11064.1 40 ---100Surr: Phenol-d5 % Recovery 45.2 11545.2 10 ---100Surr: Terphenyl-d14 % Recovery 77.2 13577.2 50 ---100

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Soil

06/02/2016Analytical Run #: Analysis Date:19:20Analysis Time:729036

57486

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JDB

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126652Method: SW808205/27/201614:00

Aroclor-1016 ug/kg 107 134 30535 47 ---500Aroclor-1221 0 130 300 70 ---500Aroclor-1232 0 130 300 70 ---500Aroclor-1242 0 130 300 70 ---500Aroclor-1248 0 130 300 70 ---500Aroclor-1254 0 135 300 67 ---500Aroclor-1260 ug/kg 105 140 30525 53 ---500Aroclor-1262 0 130 300 70 ---500Aroclor-1268 0 130 300 70 ---500

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Soil

06/02/2016Analytical Run #: Analysis Date:19:01Analysis Time:729035

57486

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JDB

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126652Method: SW808205/27/201614:00

Aroclor-1016 ug/kg U 155 0Aroclor-1221 ug/kg U 157 0Aroclor-1232 ug/kg U 159 0Aroclor-1242 ug/kg U 157 0Aroclor-1248 ug/kg U 157 0Aroclor-1254 ug/kg U 159 0Aroclor-1260 ug/kg U 156 0Aroclor-1262 ug/kg U 157 0Aroclor-1268 ug/kg U 155 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Soil

06/02/2016Analytical Run #: Analysis Date:20:57Analysis Time:729039

57486

JJYCTLab #:

Analyst:

Prep Batch #:

729038Parent Sample #:Prep Date/Time:

SOIL

JDB

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126652Method: SW808205/27/201614:00

Aroclor-1016 ug/kg 87 134 11 30799 BDL 47 ---923Aroclor-1221 U 0 130 0 3012.9 BDL 70 ---923Aroclor-1232 U 0 130 0 3016.6 BDL 70 ---923Aroclor-1242 U 0 130 0 3012.9 BDL 70 ---923Aroclor-1248 U 0 130 0 3012.9 BDL 70 ---923Aroclor-1254 U 0 135 0 3016.6 BDL 67 ---923Aroclor-1260 ug/kg 70 140 10 30668 25.6 53 ---923Aroclor-1262 U 0 130 0 3012.9 BDL 70 ---923Aroclor-1268 U 0 130 0 309.23 BDL 70 ---923Surr: 2,4,5,6-TCMX % Recovery 99.6 14799.6 53 ---100Surr: DCBP % Recovery 79.9 14179.9 65 ---100

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Soil

06/02/2016Analytical Run #: Analysis Date:20:37Analysis Time:729038

57486

JJYCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

JDB

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126652Method: SW808205/27/201614:00

Aroclor-1016 ug/kg 96 134890 BDL 47 ---923Aroclor-1221 U 0 13012.9 BDL 70 ---923Aroclor-1232 U 0 13016.6 BDL 70 ---923Aroclor-1242 U 0 13012.9 BDL 70 ---923Aroclor-1248 U 0 13012.9 51.1 70 ---923Aroclor-1254 U 0 13516.6 73.1 67 ---923Aroclor-1260 ug/kg 77 140737 25.6 53 ---923Aroclor-1262 U 0 13012.9 BDL 70 ---923Aroclor-1268 U 0 1309.23 BDL 70 ---923Surr: 2,4,5,6-TCMX % Recovery 104 147104 53 ---100Surr: DCBP % Recovery 85.7 14185.7 65 ---100

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Soil

06/02/2016Analytical Run #: Analysis Date:15:50Analysis Time:729027

57484

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

1,1'-Biphenyl ug/kg 70 106 301400 50 ---20001,2,4,5-Tetrachlorobenzene ug/kg 66 106 301310 47 ---20002,4,5-Trichlorophenol ug/kg 78 110 301550 50 ---20002,4,6-Trichlorophenol ug/kg 71 110 301420 45 ---20002,4-Dichlorophenol ug/kg 66 110 301310 45 ---20002,4-Dimethylphenol ug/kg 60 105 301210 30 ---20002,4-Dinitrophenol ug/kg 54 130 301070 15 ---20002,4-Dinitrotoluene ug/kg 86 115 301720 50 ---20002,6-Dinitrotoluene ug/kg 78 108 301570 49 ---20002-Chloronaphthalene ug/kg 65 105 301300 45 ---20002-Chlorophenol ug/kg 66 105 301320 45 ---20002-Methylnaphthalene ug/kg 62 105 301250 45 ---20002-Methylphenol ug/kg 64 105 301280 40 ---20002-Nitroaniline ug/kg 79 120 301580 45 ---20002-Nitrophenol ug/kg 66 110 301310 40 ---20003 & 4-Methylphenol ug/kg 70 105 301390 40 ---20003,3'-Dichlorobenzidine ug/kg 61 130 301220 10 ---20003-Nitroaniline ug/kg 64 110 301270 25 ---20004,6-Dinitro-2-methylphenol ug/kg 74 135 301470 30 ---20004-Bromophenyl-phenyl ether ug/kg 79 115 301580 45 ---20004-Chloro-3-methylphenol ug/kg 73 115 301460 45 ---20004-Chloroaniline ug/kg 42 95 30843 10 ---20004-Chlorophenyl-phenyl ether ug/kg 76 110 301520 45 ---20004-Nitroaniline ug/kg 82 115 301640 35 ---20004-Nitrophenol ug/kg 82 140 301640 15 ---2000Acenaphthene ug/kg 69 110 301380 45 ---2000Acenaphthylene ug/kg 68 105 301350 45 ---2000Acetophenone ug/kg 68 105 301350 47 ---2000Anthracene ug/kg 83 105 301660 55 ---2000Atrazine ug/kg 92 150 301830 50 ---2000Benzaldehyde ug/kg 64 150 301270 50 ---2000Benzo(a)anthracene ug/kg 86 110 301710 55 ---2000Benzo(a)pyrene ug/kg 80 110 301600 55 ---2000Benzo(b)fluoranthene ug/kg 84 115 301690 45 ---2000Benzo(g,h,i)perylene ug/kg 75 125 301500 40 ---2000Benzo(k)fluoranthene ug/kg 77 105 301540 45 ---2000Bis(2-chloroethoxy)methane ug/kg 66 110 301310 45 ---2000Bis(2-chloroethyl)ether ug/kg 62 105 301250 40 ---2000Bis(2-chloroisopropyl)ether ug/kg 64 115 301290 20 ---2000Bis(2-ethylhexyl)phthalate ug/kg 86 125 301710 45 ---2000Butylbenzylphthalate ug/kg 85 125 301700 50 ---2000Caprolactam ug/kg 90 150 301810 50 ---2000Carbazole ug/kg 85 115 301700 45 ---2000

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Soil

06/02/2016Analytical Run #: Analysis Date:15:50Analysis Time:729027

57484

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

Chrysene ug/kg 84 110 301680 55 ---2000Di-n-butylphthalate ug/kg 84 110 301680 55 ---2000Di-n-octylphthalate ug/kg 84 130 301670 40 ---2000Dibenzo(a,h)anthracene ug/kg 76 125 301520 40 ---2000Dibenzofuran ug/kg 72 105 301450 50 ---2000Diethylphthalate ug/kg 82 115 301630 50 ---2000Dimethylphthalate ug/kg 80 110 301590 50 ---2000Fluoranthene ug/kg 84 115 301680 55 ---2000Fluorene ug/kg 76 110 301510 50 ---2000Hexachlorobenzene ug/kg 83 120 301660 45 ---2000Hexachlorobutadiene ug/kg 64 115 301270 40 ---2000Hexachlorocyclopentadiene ug/kg 27 106 30538 35 ---2000Hexachloroethane ug/kg 62 110 301250 35 ---2000Indeno(1,2,3-cd)pyrene ug/kg 75 120 301500 40 ---2000Isophorone ug/kg 65 110 301300 45 ---2000N-Nitroso-di-n-propylamine ug/kg 67 115 301340 40 ---2000N-Nitrosodiphenylamine & Diphn ug/kg 82 115 303260 50 ---4000Naphthalene ug/kg 64 105 301290 40 ---2000Nitrobenzene ug/kg 66 115 301330 40 ---2000Pentachlorophenol ug/kg 80 120 301590 25 ---2000Phenanthrene ug/kg 81 110 301620 50 ---2000Phenol ug/kg 63 100 301260 40 ---2000Pyrene ug/kg 84 125 301690 45 ---2000

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Soil

06/02/2016Analytical Run #: Analysis Date:15:27Analysis Time:729026

57484

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

1,1'-Biphenyl ug/kg U 60211,2,4,5-Tetrachlorobenzene ug/kg U 6022 02,4,5-Trichlorophenol ug/kg U 300130 02,4,6-Trichlorophenol ug/kg U 300130 02,4-Dichlorophenol ug/kg U 300120 02,4-Dimethylphenol ug/kg U 30099 02,4-Dinitrophenol ug/kg U 500270 02,4-Dinitrotoluene ug/kg U 6024 02,6-Dinitrotoluene ug/kg U 6024 02-Chloronaphthalene ug/kg U 6023 02-Chlorophenol ug/kg U 1000340 02-Methylnaphthalene ug/kg U 6025 02-Methylphenol ug/kg U 1000420 02-Nitroaniline ug/kg U 6023 02-Nitrophenol ug/kg U 500280 03 & 4-Methylphenol ug/kg U 1800650 03,3'-Dichlorobenzidine ug/kg U 250150 03-Nitroaniline ug/kg U 6022 04,6-Dinitro-2-methylphenol ug/kg U 500270 04-Bromophenyl-phenyl ether ug/kg U 6025 04-Chloro-3-methylphenol ug/kg U 1000380 04-Chloroaniline ug/kg U 10039 04-Chlorophenyl-phenyl ether ug/kg U 6026 04-Nitroaniline ug/kg U 6030 04-Nitrophenol ug/kg U 1000400 0Acenaphthene ug/kg U 6024 0Acenaphthylene ug/kg U 6024 0Acetophenone ug/kg U 20075 0Anthracene ug/kg U 6024 0Atrazine ug/kg U 6021Benzaldehyde ug/kg U 6021Benzo(a)anthracene ug/kg U 6025 0Benzo(a)pyrene ug/kg U 6023 0Benzo(b)fluoranthene ug/kg U 6025 0Benzo(g,h,i)perylene ug/kg U 6022 0Benzo(k)fluoranthene ug/kg U 6025 0Bis(2-chloroethoxy)methane ug/kg U 6023 0Bis(2-chloroethyl)ether ug/kg U 6025 0Bis(2-chloroisopropyl)ether ug/kg U 6030 0Bis(2-ethylhexyl)phthalate ug/kg U 20087 0Butylbenzylphthalate ug/kg U 20073 0Caprolactam ug/kg U 20075Carbazole ug/kg U 6028 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Soil

06/02/2016Analytical Run #: Analysis Date:15:27Analysis Time:729026

57484

RPNCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

Chrysene ug/kg U 6025 0Di-n-butylphthalate ug/kg U 20079 0Di-n-octylphthalate ug/kg U 10059 0Dibenzo(a,h)anthracene ug/kg U 6022 0Dibenzofuran ug/kg U 6024 0Diethylphthalate ug/kg U 20064 0Dimethylphthalate ug/kg U 20063 0Fluoranthene ug/kg U 6026 0Fluorene ug/kg U 6025 0Hexachlorobenzene ug/kg U 6028 0Hexachlorobutadiene ug/kg U 20062 0Hexachlorocyclopentadiene ug/kg U 10052 Q 0Hexachloroethane ug/kg U 6033 0Indeno(1,2,3-cd)pyrene ug/kg U 6023 0Isophorone ug/kg U 10050 0N-Nitroso-di-n-propylamine ug/kg U 20070 0N-Nitrosodiphenylamine & Diphn ug/kg U 12050 0Naphthalene ug/kg U 6021 0Nitrobenzene ug/kg U 10059 0Pentachlorophenol ug/kg U 500240 0Phenanthrene ug/kg U 6026 0Phenol ug/kg U 300160 0Pyrene ug/kg U 6026 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Soil

06/02/2016Analytical Run #: Analysis Date:17:42Analysis Time:729030

57484

RPNCTLab #:

Analyst:

Prep Batch #:

729029Parent Sample #:Prep Date/Time:

SOIL

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

1,1'-Biphenyl ug/kg 67 150 8 302480 BDL 50 ---36801,2,4,5-Tetrachlorobenzene ug/kg 61 129 9 302250 BDL 40 ---36802,4,5-Trichlorophenol ug/kg 26 110 1 30945 BDL 50 ---36802,4,6-Trichlorophenol ug/kg 62 110 7 302280 BDL 45 ---36802,4-Dichlorophenol ug/kg 62 110 4 302300 BDL 45 ---36802,4-Dimethylphenol ug/kg 64 105 4 302340 BDL 30 ---36802,4-Dinitrophenol ug/kg 45 130 12 301640 BDL 15 ---36802,4-Dinitrotoluene ug/kg 69 115 5 302550 BDL 50 ---36802,6-Dinitrotoluene ug/kg 65 110 8 302390 BDL 50 ---36802-Chloronaphthalene ug/kg 61 105 9 302260 BDL 45 ---36802-Chlorophenol ug/kg 64 105 4 302350 BDL 45 ---36802-Methylnaphthalene ug/kg 63 105 4 302320 BDL 45 ---36802-Methylphenol ug/kg 64 105 6 302340 BDL 40 ---36802-Nitroaniline ug/kg 63 120 5 302330 BDL 45 ---36802-Nitrophenol ug/kg 64 110 10 302350 BDL 40 ---36803 & 4-Methylphenol ug/kg 66 105 4 302430 BDL 40 ---36803,3'-Dichlorobenzidine ug/kg U 0 130 0 30276 BDL 10 ---36803-Nitroaniline ug/kg 15 110 29 30549 BDL 25 ---36804,6-Dinitro-2-methylphenol ug/kg 58 135 9 302130 BDL 30 ---36804-Bromophenyl-phenyl ether ug/kg 66 115 8 302440 BDL 45 ---36804-Chloro-3-methylphenol ug/kg 51 115 6 301870 BDL 45 ---36804-Chloroaniline ug/kg 3 95 29 3093.7 BDL 10 ---36804-Chlorophenyl-phenyl ether ug/kg 66 110 8 302440 BDL 45 ---36804-Nitroaniline ug/kg 38 115 9 301380 BDL 35 ---36804-Nitrophenol ug/kg 68 140 30 302500 BDL 15 ---3680Acenaphthene ug/kg 63 110 8 302330 BDL 45 ---3680Acenaphthylene ug/kg 62 105 6 302280 BDL 45 ---3680Acetophenone ug/kg 65 96 2 302400 BDL 25 ---3680Anthracene ug/kg 71 105 2 302630 BDL 55 ---3680Atrazine ug/kg 58 150 10 302120 BDL 50 ---3680Benzaldehyde ug/kg 63 150 6 302310 BDL 50 ---3680Benzo(a)anthracene ug/kg 74 110 4 302850 124 50 ---3680Benzo(a)pyrene ug/kg 66 110 16 302530 102 50 ---3680Benzo(b)fluoranthene ug/kg 70 115 14 302750 177 45 ---3680Benzo(g,h,i)perylene ug/kg 54 125 29 302100 95.0 40 ---3680Benzo(k)fluoranthene ug/kg 67 125 8 302480 BDL 45 ---3680Bis(2-chloroethoxy)methane ug/kg 64 110 5 302370 BDL 45 ---3680Bis(2-chloroethyl)ether ug/kg 61 105 2 302250 BDL 40 ---3680Bis(2-chloroisopropyl)ether ug/kg 62 115 3 302300 BDL 20 ---3680Bis(2-ethylhexyl)phthalate ug/kg 70 125 2 302800 221 45 ---3680Butylbenzylphthalate ug/kg 70 125 5 302570 BDL 50 ---3680Caprolactam ug/kg U 0 150 0 30138 BDL 50 ---3680Carbazole ug/kg 69 115 5 302550 BDL 45 ---3680

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Soil

06/02/2016Analytical Run #: Analysis Date:17:42Analysis Time:729030

57484

RPNCTLab #:

Analyst:

Prep Batch #:

729029Parent Sample #:Prep Date/Time:

SOIL

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

Chrysene ug/kg 70 110 8 302780 186 55 ---3680Di-n-butylphthalate ug/kg 71 110 5 302630 BDL 55 ---3680Di-n-octylphthalate ug/kg 69 130 5 302550 BDL 40 ---3680Dibenzo(a,h)anthracene ug/kg 60 125 20 302220 BDL 40 ---3680Dibenzofuran ug/kg 66 105 6 302430 BDL 50 ---3680Diethylphthalate ug/kg 66 115 8 302440 BDL 50 ---3680Dimethylphthalate ug/kg 68 110 3 302520 BDL 50 ---3680Fluoranthene ug/kg 82 115 4 303240 205 55 ---3680Fluorene ug/kg 67 110 6 302450 BDL 50 ---3680Hexachlorobenzene ug/kg 68 120 4 302520 BDL 45 ---3680Hexachlorobutadiene ug/kg 62 115 11 302270 BDL 40 ---3680Hexachlorocyclopentadiene ug/kg U 2 137 56 3095.6 BDL 30 ---3680Hexachloroethane ug/kg 55 110 3 302010 BDL 35 ---3680Indeno(1,2,3-cd)pyrene ug/kg 58 120 24 302190 65.8 40 ---3680Isophorone ug/kg 64 110 4 302350 BDL 45 ---3680N-Nitroso-di-n-propylamine ug/kg 65 115 3 302410 BDL 40 ---3680N-Nitrosodiphenylamine & Diphn ug/kg 67 115 7 304920 BDL 50 ---7350Naphthalene ug/kg 64 105 4 302360 BDL 40 ---3680Nitrobenzene ug/kg 64 115 8 302360 BDL 40 ---3680Pentachlorophenol ug/kg 45 120 0 301640 BDL 25 ---3680Phenanthrene ug/kg 82 110 3 303170 142 50 ---3680Phenol ug/kg 52 100 2 301910 BDL 40 ---3680Pyrene ug/kg 81 125 2 303160 194 45 ---3680Surr: 2,4,6-Tribromophenol % Recovery 59.3 12559.3 35 ---100Surr: 2-Fluorobiphenyl % Recovery 60.7 10560.7 45 ---100Surr: 2-Fluorophenol % Recovery 55.6 10555.6 35 ---100Surr: Nitrobenzene-d5 % Recovery 62.9 10062.9 35 ---100Surr: Phenol-d5 % Recovery 52.8 10052.8 40 ---100Surr: Terphenyl-d14 % Recovery 65.5 12565.5 30 ---100

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Soil

06/02/2016Analytical Run #: Analysis Date:17:20Analysis Time:729029

57484

RPNCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

1,1'-Biphenyl ug/kg 73 1502690 BDL 50 ---36901,2,4,5-Tetrachlorobenzene ug/kg 67 1292470 BDL 40 ---36902,4,5-Trichlorophenol ug/kg 26 110959 BDL 50 ---36902,4,6-Trichlorophenol ug/kg 66 1102450 BDL 45 ---36902,4-Dichlorophenol ug/kg 65 1102410 BDL 45 ---36902,4-Dimethylphenol ug/kg 66 1052450 BDL 30 ---36902,4-Dinitrophenol ug/kg 50 1301860 BDL 15 ---36902,4-Dinitrotoluene ug/kg 73 1152690 BDL 50 ---36902,6-Dinitrotoluene ug/kg 70 1102590 BDL 50 ---36902-Chloronaphthalene ug/kg 67 1052480 BDL 45 ---36902-Chlorophenol ug/kg 62 1052270 BDL 45 ---36902-Methylnaphthalene ug/kg 66 1052420 BDL 45 ---36902-Methylphenol ug/kg 60 1052200 BDL 40 ---36902-Nitroaniline ug/kg 67 1202480 BDL 45 ---36902-Nitrophenol ug/kg 71 1102610 BDL 40 ---36903 & 4-Methylphenol ug/kg 64 1052350 BDL 40 ---36903,3'-Dichlorobenzidine ug/kg U 0 130277 BDL 10 ---36903-Nitroaniline ug/kg 11 110412 BDL 25 ---36904,6-Dinitro-2-methylphenol ug/kg 64 1352350 BDL 30 ---36904-Bromophenyl-phenyl ether ug/kg 72 1152660 BDL 45 ---36904-Chloro-3-methylphenol ug/kg 54 1151990 BDL 45 ---36904-Chloroaniline ug/kg U 2 9572.0 BDL 10 ---36904-Chlorophenyl-phenyl ether ug/kg 72 1102650 BDL 45 ---36904-Nitroaniline ug/kg 35 1151280 BDL 35 ---36904-Nitrophenol ug/kg 50 1401860 BDL 15 ---3690Acenaphthene ug/kg 68 1102520 BDL 45 ---3690Acenaphthylene ug/kg 66 1052430 BDL 45 ---3690Acetophenone ug/kg 64 962370 BDL 25 ---3690Anthracene ug/kg 73 1052710 BDL 55 ---3690Atrazine ug/kg 64 1502350 BDL 50 ---3690Benzaldehyde ug/kg 67 1502460 BDL 50 ---3690Benzo(a)anthracene ug/kg 77 1102970 124 50 ---3690Benzo(a)pyrene ug/kg 78 1102970 102 50 ---3690Benzo(b)fluoranthene ug/kg 81 1153180 177 45 ---3690Benzo(g,h,i)perylene ug/kg 74 1252830 95.0 40 ---3690Benzo(k)fluoranthene ug/kg 73 1252700 BDL 45 ---3690Bis(2-chloroethoxy)methane ug/kg 68 1102510 BDL 45 ---3690Bis(2-chloroethyl)ether ug/kg 63 1052310 BDL 40 ---3690Bis(2-chloroisopropyl)ether ug/kg 64 1152380 BDL 20 ---3690Bis(2-ethylhexyl)phthalate ug/kg 72 1252860 221 45 ---3690Butylbenzylphthalate ug/kg 73 1252710 BDL 50 ---3690Caprolactam ug/kg U 0 150139 BDL 50 ---3690Carbazole ug/kg 73 1152700 BDL 45 ---3690

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119245 - Page 138 of 176

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Soil

06/02/2016Analytical Run #: Analysis Date:17:20Analysis Time:729029

57484

RPNCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126666Method: SW827005/27/201614:00

Chrysene ug/kg 77 1103040 186 55 ---3690Di-n-butylphthalate ug/kg 72 1102780 <146 55 ---3690Di-n-octylphthalate ug/kg 73 1302680 BDL 40 ---3690Dibenzo(a,h)anthracene ug/kg 74 1252720 BDL 40 ---3690Dibenzofuran ug/kg 70 1052590 BDL 50 ---3690Diethylphthalate ug/kg 72 1152650 BDL 50 ---3690Dimethylphthalate ug/kg 70 1102600 BDL 50 ---3690Fluoranthene ug/kg 86 1153390 205 55 ---3690Fluorene ug/kg 71 1102620 BDL 50 ---3690Hexachlorobenzene ug/kg 72 1202640 BDL 45 ---3690Hexachlorobutadiene ug/kg 69 1152540 BDL 40 ---3690Hexachlorocyclopentadiene ug/kg 3 137102 BDL 30 ---3690Hexachloroethane ug/kg 57 1102090 BDL 35 ---3690Indeno(1,2,3-cd)pyrene ug/kg 74 1202800 65.8 40 ---3690Isophorone ug/kg 67 1102470 BDL 45 ---3690N-Nitroso-di-n-propylamine ug/kg 64 1152360 BDL 40 ---3690N-Nitrosodiphenylamine & Diphn ug/kg 72 1155310 BDL 50 ---7390Naphthalene ug/kg 67 1052480 BDL 40 ---3690Nitrobenzene ug/kg 70 1152570 BDL 40 ---3690Pentachlorophenol ug/kg 45 1201650 BDL 25 ---3690Phenanthrene ug/kg 80 1103100 142 50 ---3690Phenol ug/kg 51 1001880 BDL 40 ---3690Pyrene ug/kg 82 1253220 194 45 ---3690Surr: 2,4,6-Tribromophenol % Recovery 65.2 12565.2 35 ---100Surr: 2-Fluorobiphenyl % Recovery 66.7 10566.7 45 ---100Surr: 2-Fluorophenol % Recovery 55.4 10555.4 35 ---100Surr: Nitrobenzene-d5 % Recovery 67.5 10067.5 35 ---100Surr: Phenol-d5 % Recovery 52.0 10052.0 40 ---100Surr: Terphenyl-d14 % Recovery 67.7 12567.7 30 ---100

Date Printed: 06/16/2016

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Lab Control Spike Soil

06/07/2016Analytical Run #: Analysis Date:14:45Analysis Time:729032

57485

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126675Method: SW808105/27/201614:00

4,4'-DDD ug/kg 129 13551.7 30 ---40.04,4'-DDE ug/kg 125 12549.9 70 ---40.04,4'-DDT ug/kg 114 14045.4 45 ---40.0Aldrin ug/kg 118 14047.0 45 ---40.0alpha-BHC ug/kg 117 12546.9 60 ---40.0alpha-Chlordane ug/kg 122 12048.6 65 ---40.0beta-BHC ug/kg 122 12548.7 60 ---40.0Chlordane (Technical) ug/kg 84 130211 53 ---250delta-BHC ug/kg 122 13048.8 55 ---40.0Dieldrin ug/kg 121 12548.5 65 ---40.0Endosulfan I ug/kg 121 13548.3 15 ---40.0Endosulfan II ug/kg 124 14049.7 35 ---40.0Endosulfan sulfate ug/kg 125 13550.1 60 ---40.0Endrin ug/kg 118 13547.2 60 ---40.0Endrin aldehyde ug/kg 120 14548.1 35 ---40.0Endrin ketone ug/kg 127 13550.9 65 ---40.0gamma-Chlordane ug/kg 122 12548.7 65 ---40.0Heptachlor ug/kg 114 14045.7 50 ---40.0Heptachlor epoxide ug/kg 120 13048.1 65 ---40.0Lindane ug/kg 119 12547.5 60 ---40.0Methoxychlor ug/kg 118 14547.2 55 ---40.0Toxaphene ug/kg 89 152222 44 ---250

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Method Blank Soil

06/07/2016Analytical Run #: Analysis Date:14:29Analysis Time:729031

57485

JJYCTLab #:

Analyst:

Prep Batch #:

Parent Sample #:Prep Date/Time:

SOLID

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126675Method: SW808105/27/201614:00

4,4'-DDD ug/kg U 1.000.30 04,4'-DDE ug/kg U 1.000.30 04,4'-DDT ug/kg U 1.000.50 0Aldrin ug/kg U 1.000.50 0alpha-BHC ug/kg U 2.000.60 0alpha-Chlordane ug/kg U 1.000.30 0beta-BHC ug/kg U 2.000.60 0Chlordane (Technical) ug/kg U 205 0delta-BHC ug/kg U 1.000.30 0Dieldrin ug/kg U 1.000.30 0Endosulfan I ug/kg U 2.000.70 0Endosulfan II ug/kg U 1.000.30 0Endosulfan sulfate ug/kg U 2.000.90 0Endrin ug/kg U 1.000.40 0Endrin aldehyde ug/kg U 2.001.10 0Endrin ketone ug/kg U 2.000.80 0gamma-Chlordane ug/kg U 1.000.30 0Heptachlor ug/kg U 1.000.40 0Heptachlor epoxide ug/kg U 1.000.50 0Lindane ug/kg U 1.000.50 0Methoxychlor ug/kg U 2.000.70 0Toxaphene ug/kg U 209 0

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Duplicate Soil

06/07/2016Analytical Run #: Analysis Date:16:22Analysis Time:729034

57485

JJYCTLab #:

Analyst:

Prep Batch #:

729033Parent Sample #:Prep Date/Time:

SOIL

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126675Method: SW808105/27/201614:00

4,4'-DDD ug/kg 81 135 7 3063.8 4.39 30 ---73.74,4'-DDE ug/kg 77 125 7 3061.7 4.75 70 ---73.74,4'-DDT ug/kg 76 140 8 3061.6 5.30 45 ---73.7Aldrin ug/kg 70 140 8 3051.6 BDL 45 ---73.7alpha-BHC ug/kg 88 125 3 3064.9 BDL 60 ---73.7alpha-Chlordane ug/kg 75 120 6 3055.3 BDL 65 ---73.7beta-BHC ug/kg 78 125 8 3065.2 7.68 60 ---73.7Chlordane (Technical) ug/kg U 0 150 0 309.22 BDL 50 ---461delta-BHC ug/kg 49 130 27 3039.3 2.93 55 ---73.7Dieldrin ug/kg 71 125 8 3058.4 6.22 65 ---73.7Endosulfan I ug/kg 69 135 8 3050.7 BDL 15 ---73.7Endosulfan II ug/kg 71 140 8 3052.2 BDL 35 ---73.7Endosulfan sulfate ug/kg 72 135 9 3052.7 BDL 60 ---73.7Endrin ug/kg 82 135 8 3060.8 BDL 60 ---73.7Endrin aldehyde ug/kg 73 145 6 3053.5 BDL 35 ---73.7Endrin ketone ug/kg 77 135 8 3056.8 BDL 65 ---73.7gamma-Chlordane ug/kg 69 125 8 3050.7 BDL 65 ---73.7Heptachlor ug/kg 77 140 8 3056.4 BDL 50 ---73.7Heptachlor epoxide ug/kg 69 130 9 3052.0 1.10 65 ---73.7Lindane ug/kg 72 125 10 3052.9 BDL 65 ---73.7Methoxychlor ug/kg 88 145 7 3068.8 3.66 55 ---73.7SURR:2,4,5,6-CL4-m-xylene % Recovery 75.4 12575.4 70 ---100SURR:Decachlorobiphenyl % Recovery 57.5 13057.5 55 ---100Toxaphene ug/kg U 0 150 0 3016.6 BDL 50 ---461

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TETRA TECH Project Name: GRADEL LF

Project Number: SDG #: 0 Folder #: 119245

Matrix Spike Soil

06/07/2016Analytical Run #: Analysis Date:16:06Analysis Time:729033

57485

JJYCTLab #:

Analyst:

Prep Batch #:

727929Parent Sample #:Prep Date/Time:

SOIL

JLH

Matrix:

Prep Analyst:RPD Limit

SpikeAmount Added

Analyte Units % Recovery

Control Limits

RPDQualifier(s)QCsample result

Parent sample result

126675Method: SW808105/27/201614:00

4,4'-DDD ug/kg 87 13567.9 4.39 30 ---73.44,4'-DDE ug/kg 83 12566.0 4.75 70 ---73.44,4'-DDT ug/kg 84 14066.6 5.30 45 ---73.4Aldrin ug/kg 75 14055.4 BDL 45 ---73.4alpha-BHC ug/kg 91 12566.6 BDL 60 ---73.4alpha-Chlordane ug/kg 80 12058.7 BDL 65 ---73.4beta-BHC ug/kg 86 12570.6 7.68 60 ---73.4Chlordane (Technical) ug/kg U 0 1509.17 BDL 50 ---459delta-BHC ug/kg 66 13051.4 2.93 55 ---73.4Dieldrin ug/kg 77 12562.7 6.22 65 ---73.4Endosulfan I ug/kg 75 13554.8 BDL 15 ---73.4Endosulfan II ug/kg 77 14056.3 BDL 35 ---73.4Endosulfan sulfate ug/kg 78 13557.2 BDL 60 ---73.4Endrin ug/kg 89 13565.5 BDL 60 ---73.4Endrin aldehyde ug/kg 77 14556.5 BDL 35 ---73.4Endrin ketone ug/kg 83 13561.1 BDL 65 ---73.4gamma-Chlordane ug/kg 74 12554.5 BDL 65 ---73.4Heptachlor ug/kg 83 14060.7 BDL 50 ---73.4Heptachlor epoxide ug/kg 76 13056.9 1.10 65 ---73.4Lindane ug/kg 79 12558.0 BDL 65 ---73.4Methoxychlor ug/kg 95 14573.5 3.66 55 ---73.4SURR:2,4,5,6-CL4-m-xylene % Recovery 79.6 12579.6 70 ---100SURR:Decachlorobiphenyl % Recovery 56.1 13056.1 55 ---100Toxaphene ug/kg U 0 15016.5 BDL 50 ---459

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119245

Sample Condition Report Folder #: 119245 Print Date / Time: 05/26/2016 07:21 Client: TETRA TECH Received Date / Time / By: 05/25/2016 1010 JLS Project Name: GRADEL LF Log-In Date / Time / By: 05/25/2016 1135 BNA Project Phase: Project #: PM: BMS Coolers: 5478,5602,5071 Temperature: 5.6 C On Ice: Y Custody Seals Present : Y COC Present:? Y Complete? Y Seal Intact? Y Numbers: SIGNED AND DATED Ship Method: FEDEX EXPRESS Tracking Number: 783192023630;808631036915;783192023 Adequate Packaging: Y Temp Blank Enclosed? Y Notes: THE SAMPLES WERE RECEIVED IN GOOD CONDITION ON ICE. TWO CUSTODY SEALS WERE PRESENT AND INTACT ON EACH COOLER, ALL DATED 05/24/16 AND SIGNED. ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 727815 GL-SW-01-052316 AMBER GL 1 / 8270 Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 727815 GL-SW-01-052316 AMBER GL 1 / HERB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 727815 GL-SW-01-052316 HNO3 1 Y / HG,ICP,K,NA Total # of Containers of Type ( HNO3 ) = 1 _________________________________________________________________________________________________________ 727815 GL-SW-01-052316 AMBER GL 1 / PCB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 727815 GL-SW-01-052316 AMBER GL 1 / PEST Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 727815 GL-SW-01-052316 UNPRES PL 1 / pH Total # of Containers of Type ( UNPRES PL ) = 1 _________________________________________________________________________________________________________ 727815 GL-SW-01-052316 VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC Total # of Containers of Type ( VOA HCL ) = 3 ___________________________________________________________________________________________________________

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119245

Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 727909 GL-SD-01-052316 SOLIDS 1 / %SOL Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 727909 GL-SD-01-052316 UNPRES GL 1 / 8270,PCB,PEST Total # of Containers of Type ( UNPRES GL ) = 1 _________________________________________________________________________________________________________ 727909 GL-SD-01-052316 UNPRES GL 1 / HERB Total # of Containers of Type ( UNPRES GL ) = 1 _________________________________________________________________________________________________________ 727909 GL-SD-01-052316 SOLIDS 1 / ICP,K,NA TOC Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 727909 GL-SD-01-052316 MEOH TARED 1 / VOC MEOH TARED 1 / VOC Total # of Containers of Type ( MEOH TARED ) = 2 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 727910 GL-SW-02-052316 AMBER GL 1 / 8270 AMBER GL 1 / 8270 Total # of Containers of Type ( AMBER GL ) = 2 _________________________________________________________________________________________________________ 727910 GL-SW-02-052316 AMBER GL 1 / HERB AMBER GL 1 / HERB Total # of Containers of Type ( AMBER GL ) = 2 _________________________________________________________________________________________________________ 727910 GL-SW-02-052316 HNO3 1 / HG,ICP,K,NA HNO3 1 / HG,ICP,K,NA Total # of Containers of Type ( HNO3 ) = 2 _________________________________________________________________________________________________________ 727910 GL-SW-02-052316 AMBER GL 1 / PCB AMBER GL 1 / PCB Total # of Containers of Type ( AMBER GL ) = 2 _________________________________________________________________________________________________________ 727910 GL-SW-02-052316 AMBER GL 1 / PEST AMBER GL 1 / PEST Total # of Containers of Type ( AMBER GL ) = 2 _________________________________________________________________________________________________________ 727910 GL-SW-02-052316 UNPRES PL 1 / PH UNPRES PL 1 / pH

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119245

Total # of Containers of Type ( UNPRES PL ) = 2 _________________________________________________________________________________________________________ 727910 GL-SW-02-052316 VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC Total # of Containers of Type ( VOA HCL ) = 6 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 727929 GL-SD-02-052316 SOLIDS 1 / %SOL SOLIDS 1 / %SOL Total # of Containers of Type ( SOLIDS ) = 2 _________________________________________________________________________________________________________ 727929 GL-SD-02-052316 UNPRES GL 1 / 8270,PEST,PCB UNPRES GL 1 / 8270,PEST,PCB Total # of Containers of Type ( UNPRES GL ) = 2 _________________________________________________________________________________________________________ 727929 GL-SD-02-052316 UNPRES GL 1 / HERB UNPRES GL 1 / HERB Total # of Containers of Type ( UNPRES GL ) = 2 _________________________________________________________________________________________________________ 727929 GL-SD-02-052316 SOLIDS 1 / ICP,K,NA,TOC SOLIDS 1 / ICP,K,NA,TOC Total # of Containers of Type ( SOLIDS ) = 2 _________________________________________________________________________________________________________ 727929 GL-SD-02-052316 MEOH TARED 1 / VOC MEOH TARED 1 / VOC MEOH TARED 1 / VOC MEOH TARED 1 / VOC Total # of Containers of Type ( MEOH TARED ) = 4 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 727950 GL-SW-03-052316 AMBER GL 1 / 8270 Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 727950 GL-SW-03-052316 AMBER GL 1 / HERB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 727950 GL-SW-03-052316 HNO3 1 / HG,ICP,K,NA Total # of Containers of Type ( HNO3 ) = 1

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119245

_________________________________________________________________________________________________________ 727950 GL-SW-03-052316 AMBER GL 1 / PCB Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 727950 GL-SW-03-052316 AMBER GL 1 / PEST Total # of Containers of Type ( AMBER GL ) = 1 _________________________________________________________________________________________________________ 727950 GL-SW-03-052316 UNPRES PL 1 / pH Total # of Containers of Type ( UNPRES PL ) = 1 _________________________________________________________________________________________________________ 727950 GL-SW-03-052316 VOA HCL 1 / VOC VOA HCL 1 / VOC VOA HCL 1 / VOC Total # of Containers of Type ( VOA HCL ) = 3 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 727951 GL-SD-03-052316 SOLIDS 1 / %SOL Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 727951 GL-SD-03-052316 UNPRES GL 1 / 8270,PEST,PCB Total # of Containers of Type ( UNPRES GL ) = 1 _________________________________________________________________________________________________________ 727951 GL-SD-03-052316 UNPRES GL 1 / HERB Total # of Containers of Type ( UNPRES GL ) = 1 _________________________________________________________________________________________________________ 727951 GL-SD-03-052316 SOLIDS 1 / ICP,K,NA,TOC Total # of Containers of Type ( SOLIDS ) = 1 _________________________________________________________________________________________________________ 727951 GL-SD-03-052316 MEOH TARED 1 / VOC MEOH TARED 1 / VOC Total # of Containers of Type ( MEOH TARED ) = 2 ___________________________________________________________________________________________________________ Sample ID / Description Container Type Cond. Code pH OK?/Filtered? Tests _________________________________________________________________________________________________________ 727952 TRIP BLANK-01-052416 VOA HCL 1 / VOC Total # of Containers of Type ( VOA HCL ) = 1 ___________________________________________________________________________________________________________ Condition Code Condition Description 1 Sample Received OK

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119245

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Laboratory Report Number: L16051595

Eric KorthalsCT Laboratories1230 Lange CourtBaraboo, WI 53913

Please find enclosed the analytical results for the samples you submitted to Microbac Laboratories. Review and compilation of your report was completed by Microbac’s Ohio Valley Division (OVD). If you have any questions, comments, or require further assistance regarding this report, please contact your service representative listed below.

Laboratory Contact:Emily Yoak – Client Services Specialist(740) [email protected]

I certify that all test results meet all of the requirements of the accrediting authority listed below. All results for soil samples are reported on a 'dry-weight' basis unless specified otherwise. Analytical results for water and wastes are reported on a 'as received' basis unless specified otherwise. A statement of uncertainty for each analysis is available upon request. This laboratory report shall not be reproduced, except in full, without the written approval of Microbac Laboratories. The reported results are related only to the samples analyzed as received.

This report was certified on June 09 2016

David Vandenberg – Managing Director State of Origin: USAccrediting Authority: N/A ID:N/AQAPP: Microbac OVD

Microbac Laboratories * Ohio Valley Division158 Starlite Drive, Marietta, OH 45750 * T: (740) 373-4071 F: (740) 373-4835 * www.microbac.com

Page 1

L16051595 / Revision: 0 / 164 total pages Generated: 06/09/2016 10:04

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Lab Report #: L16051595

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Record of Sample Receipt and InspectionComments/DiscrepanciesThis is the record of the shipment conditions and the inspection records for the samples received and reported as a sample delivery group (SDG). All of the samples were inspected and observed to conform to our receipt policies, except as noted below.

The following discrepancies were noted:Discrepancy Resolution

The temperature was out of the acceptable range .BRG

Ice was melted. BRG Please proceed per the client. SLM

Sample ID: 727929 (5/23 @ 13:00). Sample received broken. BRG

Please proceed with remaining samples. The client will resend this sample. SLM

Sample ID: 727951 (5/23 @ 15:20). NO sample received. BRG Received a container (broken), Sample ID: 725920 (5/18 @ 13:40), not listed on COC. BRG

Please proceed with samples received intact. SLM

Sample ID: 727910 (5/23 @ 12:50). Only received (2) liters. One label said "MS/MSD". COC not marked for MS/MSD and insufficient volume received for QC. BRG

Please proceed with sample analysis. Insufficient volume for MS and MSD. SLM

Samples were received in hold. But will be extracted out of hold. BRG Per the client please proceed and extract as soon as possible.

CoolersCooler # Temperature

GunTemperature COC # Airbill # Temp Required?

00113985 I 9.0 1Z1A377E0340782880 X

00113991 H 0.0 1Z1A377E4442429404 X

Inspection Checklist

# Question Result

1 Were shipping coolers sealed? Yes

2 Were custody seals intact? Yes

3 Were cooler temperatures in range of 0-6? No

4 Was ice present? No

5 Were COC's received/information complete/signed and dated? Yes

6 Were sample containers intact and match COC? No

7 Were sample labels intact and match COC? No

8 Were the correct containers and volumes received? No

9 Were samples received within EPA hold times? Yes

10 All samples were checked for pH and met the standard. Exceptions are noted above under discrepancy. (water only)

Yes

11 Were pH ranges acceptable? (voa's excluded) NA

12 Were VOA samples free of headspace (less than 6mm)? NA

Microbac Laboratories ● Ohio Valley Division158 Starlite Drive, Marietta, OH 45750 ● T: (740)373-4071 F: (740)373-4835

www.microbac.com

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Lab Report #: L16051595

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Samples ReceivedClient ID Laboratory ID Date Collected Date Received

727815/GL-SW-01-052316 L16051595-01 05/23/2016 12:00 05/27/2016 10:41

727909/GL-SD-01-052316 L16051595-02 05/23/2016 12:05 05/27/2016 10:41

727910/GL-SW-02-052316 L16051595-03 05/23/2016 12:50 05/27/2016 10:41

727929/GL-SD-02-052316 L16051595-04 05/23/2016 13:00 05/27/2016 10:41

727929/GL-SD-02-052316 L16051595-05 05/23/2016 13:00 05/27/2016 10:41

727929/GL-SD-02-052316 L16051595-06 05/23/2016 13:00 05/27/2016 10:41

727950/GL-SW-03-052316 L16051595-07 05/23/2016 15:15 05/27/2016 10:41

Microbac Laboratories ● Ohio Valley Division158 Starlite Drive, Marietta, OH 45750 ● T: (740)373-4071 F: (740)373-4835

www.microbac.com

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Microbac LaboratoriesCase Narrative

Login Number: L16051595Department: General ChromatographyAnalyst: Eric Lawson

METHOD

Analysis SW-846 8151A

HOLDING TIMES

Sample Preparation: Samples 01, 03 and 07 were extracted out of hold. All other holding times were met. The cooler temperature at receipt was 9 degrees C with no ice present, exceeding the regulatory guidelines for testing.

Sample Analysis: All holding times were met.

PREPARATION

Sample preparation proceeded normally.

CALIBRATION

Initial Calibration: For all compounds that yielded a %RSD greater than 20%, linear or higher order equations were applied. All acceptance criteria were met.

Alternate Source Standards: All acceptance criteria were met.

Continuing Calibration and Tune: All acceptance criteria were met.

BATCH QA/QC

Method Blank: 2,4-Dichlorophenylacetic acid failed low.

Sample # Analyte Date Result Lower Upper Type

WG571274-01 2,4-Dichlorophenylacetic acid 2016-06-06 13:26:00 17.4 25 110 Recovery

Laboratory Control Sample: Dalapon failed low in the LCS and is a poor responder. Samples 02, 04, 05 and 06 associated with this LCS were not re-extracted per client instructions.

Sample # Analyte Date Result Lower Upper Type

WG571274-02 Dalapon 2016-06-06 13:52:00 3.00 10 105 Recovery

Matrix Spikes: Recoveries and/or RPDs out of range were observed for the following analytes: 2,4,5-T, 2,4,5-TP (Silvex)

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Dalapon, Dicamba. Please see the applicable QC report for a detailed presentation of the failures.

SAMPLES

Samples: All acceptance criteria were met.

Surrogates: All acceptance criteria were met.

Manual Integration Reason Codes

Reason #1: Data System Fails to Select Correct Peak In some cases the chromatography system selects and integrates the 'wrong peak'. In this case the analyst must correct the selection and force the system to integrate the proper peak. Other times the system may miss the peakcompletely.

Reason #2: Data System Splits the Peak Incorrectly or Integrates a False Peak as a Rider Peak This phenomena is common at low concentrations where the signal:noise ratio is low. A single compound (peak) is incorrectly split into multiple peaks or integrated as a main peak with one or more rider peaks resulting in low areacounts for the target compound.

Reason #3: Improperly Integrated Isomers and/or coeluting compounds. This system often fails to distinguish coeluting compounds and or isomers. The integration areas and concentrations are wrong, and they must be corrected by manual integration. Prime examples are benzo(k)fluoranthene andbenzo(b)fluoranthene which are often unresolved and integrated improperly when both are present at low concentrations in standards or samples.

Reason #4: System Establishes Incorrect Baseline There are numerous situations in chromatography where the system establishes the baseline incorrectly. Some baseline errors will be obvious to the analyst and should be corrected via manual procedures.

Reason #5: Miscellaneous Other situations involving integration errors may require in-depth review and technical judgment. These cases should be brought to the attention of the laboratory management. If the form of manual integration is not clearly covered by these four cases, then review and approval by the Laboratory Director or the QA/QC Supervisor will be required.

I certify that this data package is in compliance with the terms and conditions agreed to by the client and Microbac Laboratories Inc., both technically and for completeness, except for the conditions noted above. Release of the data contained in this hard copy data package has been authorized by the Laboratory Manager or designated person, as verified by the following signature.

Narrative ID: 113379Approved By: Mary Schilling

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Lab Report #: L16051595

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of AnalysisSample #: L16051595-01 PrePrep Method: N/A Instrument: HP17

Client ID: 727815/GL-SW-01-052316 Prep Method: METHOD Prep Date: 05/31/2016 18:15

Matrix: Water Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG570992 Analyst: ECL Run Date: 06/02/2016 01:10

Collect Date: 05/23/2016 12:00 Dilution: 1 File ID: 17G22049.F

Sample Tag: 01 Units: ug/L

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U,CT1 2.17 0.543

2,4-DB 94-82-6 U,CT1 2.17 0.543

2,4,5-T 93-76-5 U,CT1 0.217 0.0543

2,4,5-TP (Silvex) 93-72-1 U,CT1 0.217 0.0543

Dalapon 75-99-0 U,CT1 5.43 1.36

Dicamba 1918-00-9 U,CT1 0.217 0.109

Dichloroprop 120-36-5 U,CT1 2.17 0.543

Dinoseb 88-85-7 U,CT1 1.09 0.272

MCPA 94-74-6 U,CT1 272 54.3

MCPP 93-65-2 U,CT1 272 54.3

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 49.8 20 144

U,CT1 Analyte was not detected. The concentration is below the reported LOD. Cooler temperature at sample reciept exceeded regulatory limit.

Sample #: L16051595-02 PrePrep Method: N/A Instrument: HP17

Client ID: 727909/GL-SD-01-052316 Prep Method: METHOD Prep Date: 06/03/2016 12:45

Matrix: Soil Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571463 Analyst: ECL Run Date: 06/06/2016 15:35

Collect Date: 05/23/2016 12:05 Dilution: 1 File ID: 17G22098.R

Sample Tag: 01 Units: ug/kg Percent Solid: 51.1

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U,CT1 39.1 19.5

2,4-DB 94-82-6 U,CT1 39.1 19.5

2,4,5-T 93-76-5 U,CT1 3.91 1.95

2,4,5-TP (Silvex) 93-72-1 U,CT1 2.93 1.47

Dalapon 75-99-0 97.7 48.8

Dicamba 1918-00-9 U,CT1 3.91 1.95

Dichloroprop 120-36-5 U,CT1 39.1 19.5

Dinoseb 88-85-7 U,CT1 19.5 9.77

MCPA 94-74-6 U,CT1 3910 1950

MCPP 93-65-2 U,CT1 3910 1950

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Lab Report #: L16051595

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of AnalysisSurrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 68.5 25 110

U,CT1 Analyte was not detected. The concentration is below the reported LOD. Cooler temperature at sample reciept exceeded regulatory limit.

Sample #: L16051595-03 PrePrep Method: N/A Instrument: HP17

Client ID: 727910/GL-SW-02-052316 Prep Method: METHOD Prep Date: 05/31/2016 18:15

Matrix: Water Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG570992 Analyst: ECL Run Date: 06/02/2016 01:36

Collect Date: 05/23/2016 12:50 Dilution: 1 File ID: 17G22050.F

Sample Tag: 01 Units: ug/L

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U,CT1 2.27 0.568

2,4-DB 94-82-6 U,CT1 2.27 0.568

2,4,5-T 93-76-5 U,CT1 0.227 0.0568

2,4,5-TP (Silvex) 93-72-1 U,CT1 0.227 0.0568

Dalapon 75-99-0 U,CT1 5.68 1.42

Dicamba 1918-00-9 U,CT1 0.227 0.114

Dichloroprop 120-36-5 U,CT1 2.27 0.568

Dinoseb 88-85-7 U,CT1 1.14 0.284

MCPA 94-74-6 U,CT1 284 56.8

MCPP 93-65-2 U,CT1 284 56.8

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 62.7 20 144

U,CT1 Analyte was not detected. The concentration is below the reported LOD. Cooler temperature at sample reciept exceeded regulatory limit.

Sample #: L16051595-04 PrePrep Method: N/A Instrument: HP17

Client ID: 727929/GL-SD-02-052316 Prep Method: METHOD Prep Date: 06/03/2016 12:45

Matrix: Soil Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571463 Analyst: ECL Run Date: 06/06/2016 14:17

Collect Date: 05/23/2016 13:00 Dilution: 1 File ID: 17G22095.R

Sample Tag: 01 Units: ug/kg Percent Solid: 70.9

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U,CT1 38.6 19.3

2,4-DB 94-82-6 U,CT1 38.6 19.3

2,4,5-T 93-76-5 U,CT1 3.86 1.93

2,4,5-TP (Silvex) 93-72-1 U,CT1 2.89 1.45

Dalapon 75-99-0 96.5 48.2

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Lab Report #: L16051595

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of AnalysisAnalyte CAS # Result Qual LOQ LOD

Dicamba 1918-00-9 U,CT1 3.86 1.93

Dichloroprop 120-36-5 U,CT1 38.6 19.3

Dinoseb 88-85-7 U,CT1 19.3 9.65

MCPA 94-74-6 U,CT1 3860 1930

MCPP 93-65-2 U,CT1 3860 1930

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 30.4 25 110

U,CT1 Analyte was not detected. The concentration is below the reported LOD. Cooler temperature at sample reciept exceeded regulatory limit.

Sample #: L16051595-05 PrePrep Method: N/A Instrument: HP17

Client ID: 727929/GL-SD-02-052316 Prep Method: METHOD Prep Date: 06/03/2016 12:45

Matrix: Soil Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571463 Analyst: ECL Run Date: 06/06/2016 14:43

Collect Date: 05/23/2016 13:00 Dilution: 1 File ID: 17G22096.R

Sample Tag: 01 Units: ug/kg Percent Solid: 70.9

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 36.6 J,CT1 42.5 21.2

2,4-DB 94-82-6 40.4 J,CT1 42.5 21.2

2,4,5-T 93-76-5 3.04 J,CT1 4.25 2.12

2,4,5-TP (Silvex) 93-72-1 3.42 CT1 3.19 1.59

Dalapon 75-99-0 3.23 106 53.1

Dicamba 1918-00-9 2.11 J,CT1 4.25 2.12

Dichloroprop 120-36-5 43.3 42.5 21.2

Dinoseb 88-85-7 22.9 CT1 21.2 10.6

MCPA 94-74-6 3040 J,CT1 4250 2120

MCPP 93-65-2 3810 4250 2120

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 39.1 25 110

CT1 Cooler temperature at sample reciept exceeded regulatory limit.

J,CT1 Estimated value ; the analyte concentration was less than the LOQ. Cooler temperature at sample reciept exceeded regulatory limit.

Sample #: L16051595-06 PrePrep Method: N/A Instrument: HP17

Client ID: 727929/GL-SD-02-052316 Prep Method: METHOD Prep Date: 06/03/2016 12:45

Matrix: Soil Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG571463 Analyst: ECL Run Date: 06/06/2016 15:09

Collect Date: 05/23/2016 13:00 Dilution: 1 File ID: 17G22097.R

Sample Tag: 01 Units: ug/kg Percent Solid: 70.9

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Lab Report #: L16051595

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Certificate of AnalysisAnalyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 43.5 CT1 42.5 21.3

2,4-DB 94-82-6 49.0 CT1 42.5 21.3

2,4,5-T 93-76-5 4.23 J,CT1 4.25 2.13

2,4,5-TP (Silvex) 93-72-1 4.80 CT1 3.19 1.60

Dalapon 75-99-0 0.685 106 53.2

Dicamba 1918-00-9 2.78 J,CT1 4.25 2.13

Dichloroprop 120-36-5 55.0 42.5 21.3

Dinoseb 88-85-7 26.5 CT1 21.3 10.6

MCPA 94-74-6 3830 J,CT1 4250 2130

MCPP 93-65-2 4900 4250 2130

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 40.7 25 110

CT1 Cooler temperature at sample reciept exceeded regulatory limit.

J,CT1 Estimated value ; the analyte concentration was less than the LOQ. Cooler temperature at sample reciept exceeded regulatory limit.

Sample #: L16051595-07 PrePrep Method: N/A Instrument: HP17

Client ID: 727950/GL-SW-03-052316 Prep Method: METHOD Prep Date: 05/31/2016 18:15

Matrix: Water Analytical Method: 8151A Cal Date: 05/04/2016 18:01

Workgroup #: WG570992 Analyst: ECL Run Date: 06/02/2016 02:28

Collect Date: 05/23/2016 15:15 Dilution: 1 File ID: 17G22052.F

Sample Tag: 01 Units: ug/L

Analyte CAS # Result Qual LOQ LOD

2,4-D 94-75-7 U,CT1 2.06 0.515

2,4-DB 94-82-6 U,CT1 2.06 0.515

2,4,5-T 93-76-5 U,CT1 0.206 0.0515

2,4,5-TP (Silvex) 93-72-1 U,CT1 0.206 0.0515

Dalapon 75-99-0 U,CT1 5.15 1.29

Dicamba 1918-00-9 U,CT1 0.206 0.103

Dichloroprop 120-36-5 U,CT1 2.06 0.515

Dinoseb 88-85-7 U,CT1 1.03 0.258

MCPA 94-74-6 U,CT1 258 51.5

MCPP 93-65-2 U,CT1 258 51.5

Surrogate Recovery Lower Limit Upper Limit Q

2,4-Dichlorophenylacetic acid 53.8 20 144

U,CT1 Analyte was not detected. The concentration is below the reported LOD. Cooler temperature at sample reciept exceeded regulatory limit.

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Lab Report #: L16051595

Lab Project #: 2694.006

Project Name: CT Labs Misc

Lab Contact: Emily Yoak

Sample #: L16051595-02 Client ID: 727909/GL-SD-01-052316 Matrix: Soil Collect Date: 05/23/2016 12:05

Analyte Result Units Qualifier

Percent Solids 51.1 weight %

Sample #: L16051595-04 Client ID: 727929/GL-SD-02-052316 Matrix: Soil Collect Date: 05/23/2016 13:00

Analyte Result Units Qualifier

Percent Solids 70.9 weight %

Sample #: L16051595-05 Client ID: 727929/GL-SD-02-052316 Matrix: Soil Collect Date: 05/23/2016 13:00

Analyte Result Units Qualifier

Percent Solids 70.9 weight %

Sample #: L16051595-06 Client ID: 727929/GL-SD-02-052316 Matrix: Soil Collect Date: 05/23/2016 13:00

Analyte Result Units Qualifier

Percent Solids 70.9 weight %

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2.0 Full Sample DataPackage

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Microbac Laboratories Inc.

METHOD BLANK REPORT

Report Name:BLANK

PDF ID: 4789712

09-JUN-2016 08:21

2,4-Dichlorophenylacetic acid 44.6

Surrogates % Recovery Surrogate Limits

20 - 144

Qualifier

PASS

Analytes Concentration Dilution Qualifier

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

1

1

1

1

1

1

1

1

1

1

0.500

0.500

0.0500

0.0500

1.25

0.100

0.500

0.250

50.0

50.0

2.00

2.00

0.200

0.200

5.00

0.200

2.00

1.00

250

250

U

U

U

U

U

U

U

U

U

U

0.500

0.500

0.0500

0.0500

1.25

0.100

0.500

0.250

50.0

50.0

ND Analyte Not detected at or above reporting limit

* |Analyte concentration| > RL

17G22030.F

WG570992

Instrument ID:HP17

File ID:

Prep Date:05/31/16 18:15

Run Date:06/01/16 16:56

Analyst:ECL

Workgroup (AAB#): ug/LUnits:

8151AMethod:

WaterMatrix:

L16051595Login Number: WG570503-01Sample ID:

04-MAY-16Cal ID: HP17-Contract #:

METHODPrep Method:

LOD LOQ

LOD

LOQ

Method Detection Limit

Reporting/Practical Quantitation Limit

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Microbac Laboratories Inc.

METHOD BLANK REPORT

Report Name:BLANK

PDF ID: 4789712

09-JUN-2016 08:21

2,4-Dichlorophenylacetic acid 17.4

Surrogates % Recovery Surrogate Limits

25 - 110

Qualifier

FAIL

Analytes Concentration Dilution Qualifier

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

1

1

1

1

1

1

1

1

1

1

20.0

20.0

2.00

1.50

50.0

2.00

20.0

10.0

2000

2000

40.0

40.0

4.00

3.00

100

4.00

40.0

20.0

4000

4000

U

U

U

U

U

U

U

U

U

U

20.0

20.0

2.00

1.50

50.0

2.00

20.0

10.0

2000

2000

ND Analyte Not detected at or above reporting limit

* |Analyte concentration| > RL

17G22093.R

WG571463

Instrument ID:HP17

File ID:

Prep Date:06/03/16 12:45

Run Date:06/06/16 13:26

Analyst:ECL

Workgroup (AAB#): ug/kgUnits:

8151AMethod:

SoilMatrix:

L16051595Login Number: WG571274-01Sample ID:

04-MAY-16Cal ID: HP17-Contract #:

METHODPrep Method:

LOD LOQ

LOD

LOQ

Method Detection Limit

Reporting/Practical Quantitation Limit

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LCS - Modified 03/06/2008

06/09/2016 08:21Report generated:4797036PDF File ID:

LABORATORY CONTROL SAMPLE (LCS)

Microbac Laboratories Inc.

17G22094.R

WG571463

Instrument ID:HP17

File ID:

Run Date:06/06/2016

Run Time:13:52

Analyst:ECL

Workgroup (AAB#): ug/kgUnits:

METHODPrep Method:

SoilMatrix:

L16051595Login Number:

Analytes Expected Found LCS Limits Q% Rec

2,4-Dichlorophenylacetic acid 58.0

Surrogates % Recovery Surrogate Limits

25 - 110

Qualifier

PASS

WG571274-02Sample ID:

04-MAY-16Cal ID: HP17-STDQC Key:

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

15

20

20

20

10

30

20

25

15

15

100

100

10.0

10.0

250

10.0

100

50.0

10000

10000

*

60.9

62.8

7.32

7.25

8.63

6.64

72.6

36.3

5480

6000

60.9

62.8

73.2

72.5

3.45

66.4

72.6

72.5

54.8

60.0

-

-

-

-

-

-

-

-

-

-

105

125

120

120

105

145

130

125

110

110

8151AMethod:

* EXCEEDS %REC LIMIT

Lot#:STD74844

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LCS_LCS2 - Modified 03/06/2008

06/09/2016 08:21Report generated:4789713PDF File ID:

LABORATORY CONTROL SAMPLE (LCS)

Microbac Laboratories Inc.

2,4-D

2,4-DB

2,4,5-T

2,4,5-TP (Silvex)

Dalapon

Dicamba

Dichloroprop

Dinoseb

MCPA

MCPP

LCS LCS2

12.5

11.7

14.4

12.9

5.01

11.8

8.58

15.6

11.7

10.4

2.67 3.03

2.87 3.23

0.309 0.357

0.301 0.342

3.55 3.73

0.545 0.613

2.99 3.26

1.33 1.55

254 286

268 297

Analytes %RPD

5.00 5.00

5.00 5.00

0.500 0.500

0.500 0.500

12.5 12.5

0.500 0.500

5.00 5.00

2.50 2.50

500 500

500 500

Found FoundKnown Known

53.4 60.6

57.5 64.6

61.8 71.5

60.2 68.4

28.4 29.9

109 123

59.9 65.3

53.1 62.1

50.9 57.2

53.6 59.5

% REC % REC

30

30

30

30

30

30

30

30

30

30

RPDLmt

%RecLimits

20

20

20

25

10

30

25

25

20

20

110

125

125

120

100

135

130

120

115

120

-

-

-

-

-

-

-

-

-

-

Q

Sample ID:

Sample ID:

WG570503-02

WG570503-03

LCS

LCS2

17G22031.F

17G22032.F

File ID:

File ID:

2,4-Dichlorophenylacetic acid

LCS LCS2

55.5 62.9

Surogates% Recovery % Recovery

Surrogate Limits

20 144-

Qualifier

PASS

Run Date:

Run Date:

06/01/2016 17:22

06/01/2016 17:49

WG570992

Instrument ID:HP17

Analyst:ECL

Workgroup (AAB#): ug/LUnits:

8151AMethod:WaterMatrix:

L16051595Login Number: METHODPrep Method:

* EXCEEDS %REC LIMIT

# EXCEEDS RPD LIMIT

STDQC Key: STD74844Lot #:

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MS_MSD - Modified 03/06/2008

06/09/2016 08:21Report generated4797037PDF File ID:

Microbac Laboratories Inc.

MS/MSD REPORT

L16051595Loginnum:

SoilMatrix:

2,4,5-T

2,4,5-TP (Silvex)

2,4-D

2,4-DB

Dinoseb

Dalapon

Dicamba

Dichloroprop

MCPA

MCPP

AnalyteMS MSD

3.04 4.23

3.42 4.80

36.6 43.5

40.4 49.0

22.9 26.5

3.23 0.685

2.11 2.78

43.3 55.0

3040 3830

3810 4900

Found Found

U

U

U

U

U

U

U

U

U

U

10.6 10.6

10.6 10.6

106 106

106 106

53.1 53.2

266 266

10.6 10.6

106 106

10600 10600

10600 10600

28.6 39.8

32.2 45.1

34.5 40.9

38.1 46.1

43.2 49.9

1.22 .258

19.8 26.2

40.7 51.8

28.7 36

35.9 46.1

32.8

33.5

17.1

19.2

14.5

130

27.7

23.9

22.9

25.0

MS MSDMS MSD

Spiked Spiked%Rec %Rec

20

20

15

20

25

10

30

20

15

15

-

-

-

-

-

-

-

-

-

-

120

120

105

125

125

105

145

130

110

110

30

30

30

30

30

30

30

30

30

30

#

#

*#

*

%RPDParent%RecLimits

RPDLimit Q

Instrument ID:HP17

Parent ID:L16051595-04

Sample ID:

Sample ID:

L16051595-05

L16051595-06

MS

MSD

Method:8151A

Units:ug/kg

Contract #:

Cal ID: HP17- 04-MAY-16 WG571463Worknum:

17G22095.R

17G22096.R

17G22097.R

File ID:

File ID:

File ID:

Dil:

Dil:

1

1

Dil:1

Prep Method:METHOD

* FAILS %REC LIMIT

# FAILS RPD LIMIT

Page 52

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Page 478: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

List of Valid QualifiersJune 09, 2016

Qualkey: DOD

Microbac Laboratories Inc.

Qualifier Description

*+<>AB

B,H1B1B3B4C

CGCT1DLE

E,CT1EDL

EMPCF, S

F,CT1FL

FP1H1

H1,CT1IJJJJ

J,BJ,CT1J,H1J,H1J,PJ,SJBJQLL1L2MN

NAND

ND, BND, CT1

ND, LND, SND,H1

ND,H1,CT1NFNFLNINRNSPQ

Q,H1QNSRARES

SMISPT5TIC

TNTC

Surrogate or spike compound out of rangeCorrelation coefficient for the MSA is less than 0.995Result is less than the associated numerical value.Greater thanSee the report narrativeThe reported result is associated with a contaminated method blank.Analyte present in method blank. Sample analysis performed past holding time.Target analyte detected in method blank at or above the method reporting limitTarget analyte detected in calibration blank at or above the method reporting limitThe BOD unseeded dilution water blank exceeded 0.2 mg/LConfirmed by GC/MSConfluent growthCooler temperature at sample reciept exceeded regulatory limit.Surrogate or spike compound was diluted outEstimated concentration due to sample matrix interferenceEstimated results. The cooler temperature at receipt exceeded regulatory guidelines for requested testing.Elevated sample reporting limits, presence of non-target analytesEstimated Maximum Possible ConcentrationEstimated result below quantitation limit; method of standard additions(MSA)Estimated value; the analyte concentration was less than the RL/LOQ. The cooler temperature at receipt exceeded regulaFree LiquidDid not ignite.Sample analysis performed past holding time.Sample analysis performed past holding time. The cooler temperature at receipt exceeded regulatory guidelines for requeSemiquantitative result (out of instrument calibration range)Estimated concentration; sample matrix interference.Estimated value ; the analyte concentration was greater than the highest standardEstimated value ; the analyte concentration was less than the LOQ.The reported result is an estimated value.Analyte detected in both the method blank and sample above the MDL.Estimated value ; the analyte concentration was less than the LOQ. Cooler temperature at sample reciept exceeded reguEstimated value ; the analyte concentration was less than the LOQ. Sample analysis performed past holding time.The reported result is an estimated value. Sample was analyzed past holding time.Estimate; columns don't agree to within 40%Estimated concentration; analyzed by method of standard addition (MSA)The reported result is an estimated value. The reported result is also associated with a contaminated method blank.The reported result is an estimated value and one or more quality control criteria failed. See narrative.Sample reporting limits elevated due to matrix interferenceThe associated blank spike (LCS) recovery was above the laboratory acceptance limits.The associated blank spike (LCS) recovery was below the laboratory acceptance limits.Matrix effect; the concentration is an estimate due to matrix effect.Nontarget analyte; the analyte is a tentativlely identified compound (TIC) by GC/MSNot applicableNot detected at or above the reporting limit (RL)Not detected at or above the reporting limit (RL). Analyte present in method blank.Analyte was not detected. The concentration is below the reported LOD. The cooler temperature at receipt exceeded regNot detected; sample reporting limit (RL) elevated due to interferenceNot detected; analyzed by method of standard addition (MSA)Not detected; Sample analysis performed past holding time.Not detected; Sample analysis performed past holding time. The cooler temperature at receipt exceeded regulatory guideNot found by library searchNo free liquidNon-ignitableAnalyte is not required to be analyzedNot spikedConcentrations >40% difference between the two GC columnsOne or more quality control criteria failed. See narrative.One or more quality control criteria failed. Sample analyzed past holding time. See narrative.Quantity of sample not sufficient to perform analysisReanalysis confirms reported resultsReanalysis confirms sample matrix interferenceAnalyzed by method of standard addition (MSA)Sample matrix interference on surrogateReported results are for spike compounds onlyLaboratory not licensed for this parameterLibrary Search CompoundToo numerous to count

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List of Valid QualifiersJune 09, 2016

Qualkey: DOD

Microbac Laboratories Inc.

TNTC, BTNTC,CT1TNTC,H1

UU,CT1U,H1UJUQWX

X, SZ

Too numerous to count. Analyte present in method blank.Too numerous to count. The cooler temperature at receipt exceeded regulatory guidelines for requested testing.Too numerous to count. Sample analysis performed past holding time.Analyte was not detected. The concentration is below the reported LOD.Analyte was not detected. The concentration is below the reported LOD. Cooler temperature at sample reciept exceeded Not detected; Sample analysis performed past holding time.Undetected; the MDL and RL are estimated due to quality control discrepancies.Undetected; the analyte was analyzed for, but not detected.Post-digestion spike for furnace AA out of control limitsExceeds regulatory limitExceeds regulatory limit; method of standard additions (MSA)Cannot be resolved from isomer - see below

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Page 482: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Internal Chain of Custody Report

Login:

Account:

Project:

Samples:

Due Date:

L16051595

2694

2694.006

7

07-JUN-2016

A1 - Sample Archive (COLD)A2 - Sample Archive (AMBIENT)F1 - Volatiles Freezer in LoginV1 - Volatiles Refrigerator in LoginW1 - Walkin Cooler in Login

Microbac Laboratories Inc.

L16051595-01

L16051595-02

L16051595-03

752174

752175

752176

Samplenum

Samplenum

Samplenum

Container ID

Container ID

Container ID

1

1

1

2

Bottle:

Bottle:

Bottle:

Bottle:

1

2

1

2

3

4

5

6

1

2

1

LOGIN

DISP

LOGIN

PREP

STORE

STORE

ANALYZ

ANALYZ*

LOGIN

DISP

LOGIN

COOLER

EXT

COOLER

W1

DIG

DIG

W1

DIG

COOLER

EXT

COOLER

EXT

DISP

W1

DIG

A2

W1

EXT

SEMI

EXT

DISP

31-MAY-2016 12:32

03-JUN-2016 14:24

31-MAY-2016 12:32

31-MAY-2016 13:26

01-JUN-2016 14:15

01-JUN-2016 14:16

03-JUN-2016 11:53

06-JUN-2016 11:17

31-MAY-2016 12:32

03-JUN-2016 14:24

31-MAY-2016 12:32

BRG

BJO

BRG

ERP

BRG

CLS

JLD

ECL

BRG

BJO

BRG

BJO

BRG

ERP

ERP

CLS

ERP

BJO

Seq.

Seq.

Seq.

Seq.

Purpose

Purpose

Purpose

Purpose

From

From

From

From

To

To

To

To

Date/Time

Date/Time

Date/Time

Date/Time

Accept

Accept

Accept

Accept

Relinquish

Relinquish

Relinquish

Relinquish

Products

Products

Products

8151

8151 PCT-S

8151

*Sample extract/digestate/leachate

pH

pH

pH

pH

Page 162

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119245 - Page 174 of 176

Page 483: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Internal Chain of Custody Report

Login:

Account:

Project:

Samples:

Due Date:

L16051595

2694

2694.006

7

07-JUN-2016

A1 - Sample Archive (COLD)A2 - Sample Archive (AMBIENT)F1 - Volatiles Freezer in LoginV1 - Volatiles Refrigerator in LoginW1 - Walkin Cooler in Login

Microbac Laboratories Inc.

L16051595-04

L16051595-05

L16051595-06

L16051595-07

752177

752178

752179

752180

Samplenum

Samplenum

Samplenum

Samplenum

Container ID

Container ID

Container ID

Container ID

1

1

1

1

Bottle:

Bottle:

Bottle:

Bottle:

1

2

3

4

5

6

1

2

3

1

2

3

4

5

6

1

2

LOGIN

PREP

STORE

STORE

ANALYZ

ANALYZ*

LOGIN

STORE

STORE

LOGIN

PREP

STORE

STORE

ANALYZ

ANALYZ*

LOGIN

DISP

COOLER

W1

DIG

DIG

W1

DIG

COOLER

DIG

DIG

COOLER

W1

DIG

DIG

W1

DIG

COOLER

EXT

W1

DIG

A2

W1

EXT

SEMI

DIG

A2

W1

W1

DIG

A2

W1

EXT

SEMI

EXT

DISP

31-MAY-2016 12:32

31-MAY-2016 13:27

01-JUN-2016 14:15

01-JUN-2016 14:16

03-JUN-2016 11:53

06-JUN-2016 11:17

31-MAY-2016 12:32

01-JUN-2016 14:14

01-JUN-2016 14:16

31-MAY-2016 12:32

31-MAY-2016 13:26

01-JUN-2016 14:14

01-JUN-2016 14:16

03-JUN-2016 11:53

06-JUN-2016 11:17

31-MAY-2016 12:32

03-JUN-2016 14:24

BRG

ERP

BRG

CLS

JLD

ECL

BRG

BRG

CLS

BRG

ERP

BRG

CLS

JLD

ECL

BRG

BJO

BRG

ERP

ERP

CLS

ERP

ERP

ERP

BRG

ERP

ERP

CLS

ERP

BJO

Seq.

Seq.

Seq.

Seq.

Purpose

Purpose

Purpose

Purpose

From

From

From

From

To

To

To

To

Date/Time

Date/Time

Date/Time

Date/Time

Accept

Accept

Accept

Accept

Relinquish

Relinquish

Relinquish

Relinquish

Products

Products

Products

Products

8151 PCT-S

8151 PCT-S

8151 PCT-S

8151

*Sample extract/digestate/leachate

*Sample extract/digestate/leachate

pH

pH

pH

pH

Page 163

L16051595 / Revision: 0 / 164 total pages Generated: 06/09/2016 10:04

119245 - Page 175 of 176

Page 484: TETRA TECH - FINAL SITE ASSESSMENT REPORT FOR GRADEL … · between May 23 and 25, 2016, and conveys findings from field activities at the site. The final report addresses your comments

Internal Chain of Custody Report

Login:

Account:

Project:

Samples:

Due Date:

L16051595

2694

2694.006

7

07-JUN-2016

A1 - Sample Archive (COLD)A2 - Sample Archive (AMBIENT)F1 - Volatiles Freezer in LoginV1 - Volatiles Refrigerator in LoginW1 - Walkin Cooler in Login

Microbac Laboratories Inc.

L16051595-08 752181

Samplenum Container ID

1Bottle:

1 LOGIN COOLER W1 31-MAY-2016 12:32 BRG

Seq. Purpose From To Date/Time Accept Relinquish

Products

pH

Page 164

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119245 - Page 176 of 176