TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge...

429
355 Research Parkway Meriden, CT 06450 T (203) 630-1406 F (203) 630-2615 www.blcompanies.com An Employee-Owned Company TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT CONNECTICUT DEPARTMENT OF TRANSPORTATION REPLACEMENT OF BRIDGE NO. 00488 ROUTE 66 OVER P&W RAILROAD WINDHAM, CONNECTICUT Prepared for: Connecticut Department of Transportation Division of Environmental Compliance 2800 Berlin Turnpike Newington, Connecticut 06111 Prepared by: BL Companies, Inc. 355 Research Parkway Meriden, Connecticut 06450 BL Companies Project Number 14EC0050 ConnDOT Project No. 0163-0196 Assignment No. 314-5425 December 2016

Transcript of TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge...

Page 1: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

355 Research Parkway ▪ Meriden, CT 06450 ▪ T (203) 630-1406 ▪ F (203) 630-2615 ▪ www.blcompanies.com

An Employee-Owned Company

TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT

CONNECTICUT DEPARTMENT OF TRANSPORTATION

REPLACEMENT OF BRIDGE NO. 00488

ROUTE 66 OVER P&W RAILROAD

WINDHAM, CONNECTICUT

Prepared for:

Connecticut Department of Transportation

Division of Environmental Compliance

2800 Berlin Turnpike

Newington, Connecticut 06111

Prepared by:

BL Companies, Inc.

355 Research Parkway

Meriden, Connecticut 06450

BL Companies Project Number 14EC0050

ConnDOT Project No. 0163-0196

Assignment No. 314-5425

December 2016

Page 2: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

This report was prepared by the individuals listed below. Any questions or comments regarding

the information provided herein should be directed to these individuals.

Prepared by:

Joy P. Kloss, LEP, CHMM

Sr. Environmental Scientist

Reviewed by:

Aaron L. Silva, LEP

Project Manager

Page 3: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -i- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

TABLE OF CONTENTS

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

1.1 BACKGROUND AND PURPOSE ............................................................................................. 1

1.2 SCOPE OF WORK ................................................................................................................. 1

2.0 LOCAL ENVIRONMENT AND RECEPTORS ............................................................ 3

2.1 SURFICIAL GEOLOGY .......................................................................................................... 3

2.2 BEDROCK GEOLOGY ........................................................................................................... 3

2.3 GROUNDWATER .................................................................................................................. 3

2.4 SURFACE WATER ................................................................................................................ 3

3.0 FIELD INVESTIGATION AND SAMPLING METHODS .......................................... 4

3.1 SOIL BORING INSTALLATION AND SAMPLING .................................................................... 4

3.2 GROUNDWATER SAMPLING ................................................................................................ 4

4.0 REGULATORY CRITERIA ............................................................................................ 5

4.1 RSR SOIL CRITERIA ............................................................................................................ 5

4.2 GROUNDWATER CRITERIA .................................................................................................. 6

5.0 SUMMARY AND EVALUATION OF ANALYTICAL DATA .................................... 7

5.1 SOIL SAMPLE ANALYTICAL RESULTS ................................................................................. 7

5.2 GROUNDWATER SAMPLE ANALYTICAL RESULTS .............................................................. 8

5.3 QUALITY ASSURANCE (QA)/QUALITY CONTROL (QC) RESULTS ...................................... 9

6.0 POTENTIAL SOURCES OF CONTAMINATION, RECEPTORS, AND

IDENTIFIED PRELIMINARY AREAS OF ENVIRONMENTAL CONCERN ...... 11

7.0 CONCLUSIONS AND RECOMMENDATIONS ......................................................... 12

8.0 LIMITATIONS ................................................................................................................ 13

9.0 REFERENCES ................................................................................................................. 14

APPENDIX A – FIGURES

Figure 1 Site Location Map

ENV-01 Sample Location Plan

APPENDIX B – TABLES

Table 1 Sample Location Rationale and Selected Analyses

Table 2 Soil Analytical Results

Table 3 Groundwater Analytical Results

APPENDIX C – BORING LOGS

APPENDIX D – LABORATORY ANALYTICAL REPORTS

Page 4: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -1- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

1.0 INTRODUCTION

BL Companies was retained by the State of Connecticut Department of Transportation

(ConnDOT) to conduct a Task 210 Subsurface Site Investigation (SSI) in support of ConnDOT

Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut.

This report provides a brief description and history of the project area, a discussion of the local

environment and receptors, the investigation rationale, a summary of the data obtained during the

investigation, an interpretation of the results with respect to the appropriate regulatory criteria,

and recommendations.

1.1 Background and Purpose

The project is located at Bridge No. 00488 which carries Route 66 (Columbia Avenue) over the

Providence and Worcester (P&W) Railroad in Windham, Connecticut. The project consists of

complete removal and reconstruction of the bridge structure. The Site’s location and pertinent

features are depicted on the enclosed Site Location Map (Figure 1) and Sample Location Plan

(ENV-01) in Appendix A.

The purpose of this Task 210 SSI is to collect soil and groundwater data in order to evaluate

whether the proposed construction activities require management of contaminated soil and

groundwater.

1.2 Scope of Work

BL Companies completed a Task 210 SSI work plan, dated October 5, 2016, which was

approved by ConnDOT. The scope of work included the following tasks:

• Pre-drilling activities (1) mark proposed drilling locations, (2) contact Call-Before-

You-Dig to request mark outs of subsurface utilities and review existing utility plans,

and (3) discuss proposed drilling locations with representatives of ConnDOT, P&W

Railroad, and other utility companies/agencies, if necessary;

• Completion of five soil borings (B-2 through B-6 to depths ranging from 10 to 20 feet

below grade (ftbg) using a Geoprobe direct push rig. Additionally, one soil boring

(B-1) will be advanced utilizing a hand auger.

• Installation of two temporary groundwater monitoring wells;

• Recording lithology and field screening soil samples with a photoionization detector

(PID);

• Collection and laboratory analysis of up to three soil samples per boring for one or

more of the following:

o Volatile Organic Compounds (VOCs) by EPA Method 8260;

o Semi-Volatile Organic Compounds (SVOCs) by EPA Method 8270;

o Extractable Total Petroleum Hydrocarbons (ETPH) by CT ETPH Method;

o Total RCRA 8 Metals by EPA Methods 6010/ 7471;

Page 5: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -2- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

o Leachable RCRA 8 Metals using the toxicity characteristic leaching

procedure (TCLP);

o Polychlorinated Biphenyls (PCBs) by EPA Method 8082;

o Pesticides by EPA Method 8081; and

o Ignitability; Reactivity; and pH.

• Collection and laboratory analysis of groundwater samples from two temporary wells

for the following:

o VOCs by EPA Method 8260;

o SVOCs by EPA Method 8270;

o ETPH by CT ETPH Method;

o PCBs by EPA Method 8082;

o Pesticides by EPA Method 8081; and

o Total and Dissolved RCRA 8 Metals, Copper, and Zinc by EPA Method

6010/7471.

Page 6: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -3- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

2.0 LOCAL ENVIRONMENT AND RECEPTORS

2.1 Surficial Geology

According to the "Surficial Materials Map of Connecticut", dated 1992, surficial materials at the

Site consist of sand and gravel. Based on observations during boring installation, surficial

materials consist of tan, fine to coarse sand with traces of silt and gravel. Gray fine to coarse

sand with traces of silt and gravel and black organic peat was observed at 18 ftbg. Boring logs

are included as Appendix C.

2.2 Bedrock Geology

According to the “Bedrock Geological Map of Connecticut”, dated 1985, the project area is

underlain by the Waterford Group, which is described as light to dark, medium-grained gneiss.

Bedrock was not encountered and bedrock outcrops were not observed during this investigation.

2.3 Groundwater

Based on a review of the Water Quality Classifications Map for Windham, Connecticut, dated

November 2015, the project area has been designated by Department of Energy and

Environmental Protection (DEEP) as “GB” quality. The GB classification indicates that

groundwater at the Site is not suitable for human consumption without treatment. During this

Task 210 SSI, groundwater was encountered at depths ranging from 9 to 17 ftbg.

Based on the presence of the Willimantic River, the general direction of groundwater flow is

inferred to be southwest.

2.4 Surface Water

The Willimantic River is located approximately 0.16 miles southwest of Bridge No. 00488. The

Willimantic River is classified as “B” surface water body, according to the above-referenced

DEEP map. Class B surface waters are designated for use as fish, aquatic life and wildlife

habitats, recreation, navigation, industrial and agricultural water supply.

Page 7: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -4- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

3.0 FIELD INVESTIGATION AND SAMPLING METHODS

This Task 210 SSI included the advancement of six borings, installation of two temporary

monitoring wells, and collection and laboratory analysis of 13 soil samples and 2 groundwater

samples. BL Companies subcontracted Cummins Envirotech, Inc., (CEI) of Old Lyme,

Connecticut to advance the borings and to install the temporary wells. The soil boring locations

are depicted on ENV-01.

Soil and groundwater samples were analyzed for regulated constituents of concern associated

with the roadway railroad embankment, and nearby property uses. Table 1 in Appendix B

provides a summary of the sampling rationale and the laboratory analyses requested for each soil

and groundwater sample. The following sections summarize the field investigation and sampling

methodologies used during this investigation.

3.1 Soil Boring Installation and Sampling

On October 25, 2016, five soil borings, identified as B-2 through B-6, were advanced to a depth

of 10 to 20 ftbg using a track-mounted Geoprobe direct-push drill rig. Soil samples were

obtained continuously during advancement of the borings using a 2-inch diameter, 5-foot long,

sampling device equipped with disposable acetate liners. B-1 was advanced to a depth of 2 ftbg

using a hand-auger.

A representative portion of each 5-foot soil core were screened with a PID to detect estimated

quantities of total VOCs in vapor emitted from the soil. The PID was equipped with a 10.6 eV

bulb and was calibrated to isobutylene standard gas (100 parts per million (ppm)). The results of

the PID screening were 0.0 ppm and are provided on the boring logs in Appendix C.

Soil samples were selected for laboratory analysis based upon observations (physical evidence of

contamination and/or lithology change) and the results of the field screening. The samples were

submitted under proper chain of custody to Accutest laboratories, Inc. of New England

(Accutest), a State of Connecticut Department of Public Health certified environmental testing

laboratory.

3.2 Groundwater Sampling

Following soil sampling, a 1-inch diameter PVC screen and riser pipe were inserted into borings

B-3 and B-4, as temporary groundwater wells. The wells were sampled at a low-flow rate using

a peristaltic pump. Groundwater was pumped directly into pre-preserved sample containers

provided by the laboratory and placed in a cooler with ice. The groundwater samples were

submitted to Accutest under proper chain of custody control.

Page 8: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -5- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

4.0 REGULATORY CRITERIA

The soil analytical results were compared to the numeric criteria listed in the Connecticut DEEP

Remediation Standard Regulations (RSRs), sections 22a-133k-1 through 22a-133k-3 of the

Regulations of Connecticut State Agencies, dated June 2013, and also compared to the published

2015 numeric criteria for additional polluting substances not promulgated in the June 2013

RSRs. The RSRs were developed by the DEEP to define the remediation performance standards

for soil and groundwater to be protective of human health and the environment.

The RSRs apply specifically to sites at which remedial actions are required by the DEEP under

Chapters 445 or 446k of the Connecticut General Statutes (CGS) such as under an administrative

order, subsequent to a transfer of an establishment under CGS Section 22a-134a, and to sites that

are enrolled in a Voluntary Remediation Program under CGS Sections 22a-133x or 22a-133y.

The Site is not regulated under any of the above State statutes; however, BL Companies used the

numeric criteria stated above as guidelines to evaluate concentrations of regulated compounds

detected in soil. DEEP defines polluted soil as containing any substance at a concentration

above the analytical detection limit. Contaminated soil is defined as any substance whose

concentration exceeds the numeric criteria of the RSRs. Both classifications require special

handling, re-use, and disposal requirements.

Based on discussions between ConnDOT and DEEP, the numeric criteria in the RSRs do not

provide the best method for construction projects to determine whether treatment of groundwater

is necessary prior to discharge. In accordance with DEEP guidance, groundwater analytical

results were compared to the effluent limits established under both DEEP General Permits for the

Discharge of Groundwater Remediation Wastewater (to Sanitary or Surface Water) for the

purpose of groundwater management.

The following sections provide a brief summary of the soil and groundwater criteria utilized

during this Task 210 SSI.

4.1 RSR Soil Criteria

Direct Exposure Criteria (DEC)

The DEC are designed to protect human health from risks associated with exposure to pollutants

in contaminated soil within 15 feet of the ground surface.

The RSRs provide two sets of DEC, one for residential land use (RES DEC) and another for

industrial/commercial land use (I/C DEC). The CTDEEP RSRs define “residential activity”

under CGS Section 22a-133k-1(a) to include any activity related to a residence or dwelling, or to

a school, hospital, day care center, playground, or outdoor recreation area. Remediation to the

RES DEC is required unless an ELUR is recorded that restricts residential use. For this project,

BL Companies compared the soil analytical results to both the RES DEC and I/C DEC.

Page 9: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -6- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

Pollutant Mobility Criteria (PMC)

The PMC are designed to protect groundwater quality by reducing or eliminating the potential

for migration of pollutants to groundwater from contaminated soil. The RSRs provide two sets

of PMC based on the groundwater classification of the Site, as designated by DEEP. The project

is located in a “GB” designated area. Therefore, soil analytical results were compared to the GB

PMC, which apply to soil located from the ground surface to the depth of the seasonal low water

table.

4.2 Groundwater Criteria

Maximum Concentration Limits (MCLs) Established in DEEP General Permits for Discharge of

Groundwater Remediation Wastewater Directly to Surface Water or Sanitary Sewer

MCLs established in DEEP General Permits for Discharge of Groundwater Remediation

Wastewater Directly to Surface Water or Sanitary Sewer apply to impacted groundwater that is

discharged during construction dewatering. In order to evaluate whether construction dewatering

would require treatment prior to discharge, BL Companies compared the groundwater analytical

results to the Remediation Waste Water Discharge MCLs.

Page 10: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -7- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

5.0 SUMMARY AND EVALUATION OF ANALYTICAL DATA

5.1 Soil Sample Analytical Results

Soil analytical results are summarized in Table 2 in Appendix B along with the regulatory

criteria. The soil analytical laboratory reports are included in Appendix D.

VOCs

All soil samples were analyzed for VOCs by EPA Method 8260. Acetone, a common laboratory

contaminant, was detected in sample B-6 (8-10’) at concentration below the RSR criteria. VOCs

were not detected in any other samples.

SVOCs

All soil samples were analyzed for SVOCs by EPA Method 8270. SVOCs were detected in soil

sample B-1 (0-2’) and B-4 (0-2’) at concentrations above the RES DEC, I/C DEC, and/or GB

PMC. SVOCs were detected in samples B-3 (0-2’) at concentrations below the RSR criteria.

SVOCs were not detected in any other samples.

ETPH

All soil samples were analyzed for ETPH by CT ETPH Method. ETPH was detected in soil

samples B-1 (0-2’) and B-4 (0-2’) at concentrations below the RSR criteria.

Metals

All soil samples were analyzed for total RCRA 8 metals.

• Arsenic was detected in all samples at concentrations ranging from 1.5 to 6.1 mg/kg,

which are below the RES DEC and I/C DEC.

• Barium was detected in all samples at concentrations ranging from 25.6 to 45 mg/kg,

which are below the RES DEC and I/C DEC.

• Chromium was detected in all samples at concentrations ranging from 5.1 to 24.5

mg/kg, which are below the RES DEC and I/C DEC.

• Lead was detected in all samples at concentrations ranging from 1.6 to 71.1 mg/kg,

which are below the RES DEC and I/C DEC.

• Mercury was detected in soil samples B-1 (0-2’) and B-4 (0-2’) at concentrations of

0.13 mg/kg and 0.038 mg/kg respectively, which are below the RES DEC and I/C DEC.

• Cadmium, selenium and silver were not detected in any soil samples.

The soil samples were additionally analyzed for leachable RCRA 8 metals by TCLP for

comparison to the GB PMC.

• TCLP lead was detected in samples B-1 (0-2’), B-3 (0-2’), B-4 (0-2’), B-5 (0-2’), and

B-6 (0-2’) at concentrations ranging from 0.015 to 0.13 milligrams per liter (mg/L)

which are below the GB PMC.

Page 11: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -8- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

• TCLP arsenic, barium, cadmium, chromium, selenium, mercury, and silver were not

detected in any soil samples.

• Additionally, soil represented by these samples does not contain hazardous levels of

metals.

PCBs

All soil samples were analyzed for PCBs by EPA Method 8082. Aroclor 1260 was detected in

sample B-1 (0-2’) below the RSR criteria.

Pesticides

All soil samples were analyzed for pesticides by EPA Method 8081. 4,4’-DDT was detected in

soil sample B-1 (0-2’) at a concentration above the GB PMC, but below the DEC. 4.4’-DDT

was detected in samples B-3 (0-2’) and B-4 (0-2’) below the RSR criteria. Pesticides were not

detected above the reportable detection limits in any other samples.

Reactivity, Ignitability, and Corrosivity

All soil samples were analyzed for reactive cyanide and sulfide, ignitability, and pH. Reactive

sulfide and cyanide were detected at low levels in all samples. Based on the laboratory results,

the soil does not exhibit hazardous characteristics of reactivity, ignitability, and corrosivity.

5.2 Groundwater Sample Analytical Results

Two groundwater samples, identified as MW/B-3 and MW/B-4, were submitted for laboratory

analysis of VOCs, SVOCs, ETPH, PCBs, pesticides, and total and dissolved RCRA 8 metals,

copper, and zinc during this Task 210 SSI. Groundwater analytical results in comparison to the

General Permit Discharge MCLs are summarized in Table 3 in Appendix B. The groundwater

analytical laboratory report is included in Appendix D.

SVOCs

All samples were analyzed for SVOCs. Dibenzo(a,h)anthracene was detected in all samples

above the Surface Water Discharge MCL, but below the Sanitary Sewer Discharge MCL.

Dibenzo(a,h)anthracene was also detected in the field blank indicating potential cross-

contamination of the sampling equipment. Total PAHs were detected in all groundwater samples

at concentrations less than the Surface Water Discharge total PAHs MCL of 5 ug/L and below

the Sanitary Sewer Discharge total PAHs MCL of 500 ug/L.

Metals

• Total arsenic was detected in sample MW/B-3 at a low concentration, which exceeds

the Surface Water Discharge MCL, but is below the Sanitary Sewer Discharge MCL.

Total arsenic was not detected in sample MW/B-4; however, the laboratory reportable

detection limit is above the Surface Water Discharge MCL. Dissolved arsenic was not

detected in any samples; however, the laboratory detection limit is above the Surface

Water Discharge MCL.

Page 12: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -9- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

• Total barium, lead, and chromium were detected in sample MW/B-3 at concentrations

below the DEEP General Discharge Permit MCLs. Total barium, lead, and chromium

were not detected in MW/B-4.

• Total cadmium, copper, silver, and zinc were not detected in any groundwater samples.

• Dissolved barium, chromium, copper, lead, and zinc were not detected in any samples.

VOCs, ETPH, Pesticides, and PCBs

VOCs, ETPH, pesticides, and PCBs were not detected above the reportable detection limits in

any groundwater samples.

5.3 Quality Assurance (QA)/Quality Control (QC) Results

All samples were analyzed using the DEEP Reasonable Confidence Protocol (RCP), where

applicable, and meet the RCP requirements. BL Companies also reviewed the laboratory RCP

Certification Report to evaluate the reliability of the analytical data. The case narratives do not

indicate any non-conformances that would affect the usability of the data. All reportable

detection limits were below RSR criteria and DEEP General Discharge Permit MCLs except for

arsenic.

Soil

A trip blank sample was prepared at the laboratory and accompanied the sample containers

during transport to evaluate the potential for cross-contamination from the surrounding

environment during transport. The trip blank sample was analyzed for VOCs. VOCs were not

detected in the trip blank sample, indicating that there was likely no cross-contamination of the

samples during transportation.

A duplicate soil sample was collected from one randomly selected soil sample location, B-2 (0-

2’), to evaluate the accuracy of the laboratory analytical data, measured as Relative Percent

Difference (RPD) as defined by the DEEP Laboratory Quality Assurance and Quality Control

Guidance Document, dated May 2009, revised December 2010. An RPD of 50 or less is

acceptable for non-aqueous samples. The duplicate was analyzed for VOCs, SVOCs, ETPH,

PCBs, pesticides, and total and TCLP RCRA 8 metals. There were no RPDs greater than 50

based on the analytical results.

Groundwater

A field blank sample was collected by running de-ionized water through the sampling equipment

and into the laboratory provided sample containers. The purpose of a field blank sample is to

evaluate the potential for cross-contamination due to the sampling equipment or technique. The

field blank sample was analyzed for VOCs, SVOCs, ETPH, PCBs, pesticides, and total and

dissolved metals.

Two PAHs, dibenzo(a,h)anthracene and indeno(1,2,3-cd)pyrene, were detected in the field blank

indicating potential cross-contamination. Dibenzo(a,h)anthracene was also detected in the

groundwater samples MW/B-3 and MW/B-4 at concentrations exceeding the Surface Water

Page 13: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -10- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

MCL. These detections may be related to cross-contamination from sampling equipment and

may not be representative of groundwater conditions.

A trip blank sample was prepared at the laboratory and accompanied the sample containers

during transport to evaluate the potential for cross-contamination from the surrounding

environment during transport. The trip blank sample was analyzed for VOCs. VOCs were not

detected in the sample, indicating that there was likely no cross-contamination of the samples

during transport.

A duplicate sample was collected from MW/B-3 to evaluate the accuracy of the laboratory

analytical data, measured as RPD. An acceptable RPD is 30 or less for aqueous samples. The

duplicate sample was analyzed for VOCs, SVOCs, ETPH, pesticides, and total and dissolved

RCRA 8 metals. Analytical results were within the RPD with the exception of the following:

• Total barium and chromium were detected in the original sample, but not in the duplicate.

Barium and chromium resulted in RPDs of 69 and 32, respectively, when calculated

using the detection limit. Since barium and chromium were detected below the Surface

Water Discharge MCLs in both the original sample and the duplicate, the usability of the

data is not affected

Page 14: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -11- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

6.0 POTENTIAL SOURCES OF CONTAMINATION, RECEPTORS, AND

IDENTIFIED PRELIMINARY AREAS OF ENVIRONMENTAL CONCERN

The following provides a summary of the potential sources of soil and groundwater

contamination identified during completion of this Task 210 SSI, an evaluation of potential

pathways for migration, and the identification of a preliminary Areas of Environmental Concern

(AOECs) and Low-Level Areas of Environmental Concern (LLAOECs) within the project area.

AOEC 1 – Contaminated Soil in the Vicinity of Boring B-1

SVOCs and pesticides were detected at concentrations exceeding the RES DEC, I/C DEC, d/or

GB PMC in soil samples collected at depths ranging from 0 to 2 ftbg. The source of the SVOCs

and pesticides may be associated with the adjacent roadway and surrounding land use. In

addition, low-level ETPH and PCBs (at concentrations below the applicable RSR criteria) were

detected in boring B-1 at depths ranging from 0 to 2 ftbg.

Proposed work within AOEC 1 includes milling and repaving during construction of new bridge.

Therefore, any soil removed from AOEC 1 should be reused onsite within AOEC 1 or handled as

controlled material. Potential receptors of the impacted soil include workers involved in the

construction activities.

AOEC 2 – Contaminated Soil in the Vicinity of Boring B-4

SVOCs were detected at concentrations exceeding the RES DEC, I/C DEC, and/or GB PMC in

soil samples collected at depths ranging from 0 to 2 ftbg. The source of the SVOCs may be

associated with the adjacent roadway. In addition, low-level ETPH (at a concentration below the

applicable RSR criteria) was detected in boring B-4 at depths ranging from 0 to 2 ftbg.

Proposed work within AOEC 2 includes construction of temporary roadway during construction of

new bridge. Therefore, any soil removed from AOEC 2 should be reused onsite or handled as

controlled material. Potential receptors of the impacted soil include workers involved in the

construction activities.

LLAOEC “A” – Low-Level Soil in the Vicinity of Borings B-3

Low-level SVOCs and pesticides (at concentrations below the applicable RSR criteria) were

detected in boring B-3 at depths ranging from 0 to 2 ftbg. The source of the SVOCs and

pesticides may be associated with the adjacent roadway and railroad.

GW AOEC (Site-Wide) – Contaminated Groundwater in the Vicinity of Borings B-3

Total arsenic was detected at concentrations exceeding the Surface Water Discharge MCLs in

unfiltered groundwater sample B-3. The arsenic contamination is most likely naturally

occurring. Excavations will be performed below the water table during the project. Based on the

results of this investigation, if groundwater within the GW AOEC requires dewatering, it will

require special management and treatment. Potential receptors of the impacted groundwater

include workers involved in the dewatering activities.

Page 15: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -12- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

7.0 CONCLUSIONS AND RECOMMENDATIONS

Based on the analytical data collected by BL Companies, preliminary AOECs, a LLAOEC, and a

GW AOEC were identified within the project area, as summarized below:

• Soil within AOEC 1 contains SVOCs and pesticides at concentrations exceeding RSR

numeric criteria and therefore classified as contaminated material.

• Soil within AOEC 2 contains SVOCs at concentrations exceeding RSR numeric

criteria and therefore classified as contaminated material.

• Soil within LLAOEC “A” contains low levels of SVOCs, ETPH, PCBs, and/or metals

below the RSR numeric criteria.

• Groundwater within GW AOEC contains total arsenic above the General Permit

MCLs for Surface Water, but below the Sanitary Sewer Discharge MCL. Therefore,

groundwater within GW AOEC will require special management and treatment, if

encountered during excavations for the project.

Based on the results of this Task 210 SSI, BL Companies recommends that a Task 310 – Plans,

Specifications, and Estimates be assigned to prepare plans and specifications for the proper

management and/or disposal of contaminated materials (soil and groundwater) that may be

reused, removed, handled, transported, or disposed during construction activities and for the

establishment of appropriate worker health and safety protocols.

Page 16: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -13- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

8.0 LIMITATIONS

The conclusions stated above are based solely on the information described in this report. The

data and observations generated during this investigation reflect the conditions found on the

project site on the dates and at the locations specified. Where visual observations are included in

the report, they represent conditions at the time of investigation, and may not be indicative of

past or future conditions. The data cannot be extrapolated to locations on the site that were not

tested, or to compounds for which tests were not conducted.

Latent conditions and other information may become evident in the future based on currently

unavailable evidence. BL Companies assumes no responsibility for such conditions or for the

inspection, engineering, or repair that might be required to discover or correct such factors.

Should such evidence arise, it should be forwarded to BL Companies so that additional

conclusions and recommendations may be evaluated as necessary.

This report has been completed solely for the benefit and individual use of the client. No part

thereof, nor any copy of the same, shall be used for any purpose by anyone other than the client.

No disclosure or reliance of this report may be made without the prior written consent of BL

Companies.

Page 17: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Task 210 – Subsurface Site Investigation -14- Project No.14EC0050

Replacement of Bridge No. 00488, Route 66 December 2016

State Project No. 0163-0196; Assignment No. 314-5425

9.0 REFERENCES

1. State of Connecticut Department of Energy and Environmental Protection (CTDEEP),

Remediation Standard Regulations, Sections 22a-133k-1 through –3 of the Regulations of

Connecticut State Agencies, June 2013.

2. CTDEEP, “Water Quality Classifications Map of Windham”, November 2016.

3. CTDEEP, “Recommended Numeric Criteria for Common Additional Polluting Substances

and Certain Alternative Criteria”, December 10, 2015.

4. State of Connecticut Department of Transportation, Division of Environmental Compliance,

“On-Call Contaminated Soil/Groundwater Scopes” manual, dated 2010.

5. Rogers, John, USGS, “Bedrock Geological Map of Connecticut”, dated 1985.

6. Stone, J., USGS, “Surficial Materials Map of Connecticut”, dated 1992.

Page 18: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

APPENDIX A

FIGURES

Figure 1 – Site Location Map

ENV-01 – Sample Location Plan

Page 19: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SITE

LOCATION

FIGURE 1

SITE LOCATION MAP

Replacement of Bridge No. 00488, Route 66 over P&W Railroad

Windham, CT

Project No. 14EC0050

Base map is a reproduction of the U.S.G.S. 7.5 Minute Willimantic Quadrangle – 2015

Page 20: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

B-3

B-4

B-6

B-2

B-5

B-1

DESIGNER/DRAFTER:

CHECKED BY:

PROJECT TITLE: TOWN:

DRAWING TITLE:

PROJECT NO.

DRAWING NO.

SHEET NO.

Filename:SHEET NO.REVISION DESCRIPTIONDATEREV.

DEPARTMENT OF TRANSPORTATION

STATE OF CONNECTICUT

SCALE 1"=30'

30 600

SCALE IN FEETOF WORK WHICH WILL BE REQUIRED.

THE CONDITIONS OF ACTUAL QUANTITIES

IN NO WAY WARRANTED TO INDICATE

INVESTIGATIONS BY THE STATE AND IS

SHEETS IS BASED ON LIMITED

QUANTITIES OF WORK, SHOWN ON THESE

THE INFORMATION, INCLUDING ESTIMATED

12/21/2016

BLOCK:

SIGNATURE/

...\DD_MSH_ENV_163-196_01.dgnPlotted Date:

CONNECTICU

T

DE

PA

RT

ME

NT

O F TRANS

PO

RT

ATI

ON

ENV-01JK

163-196JO

LAND SURVEYING

ENVIRONMENTAL

ENGINEERING

ARCHITECTURE

B-2

WINDHAM

PLAN

B-1

REPLACEMENT OF BRIDGE

NO. 00488

ROUTE 66 OVER P&W RAILROAD SAMPLE LOCATION

GEOPROBE BORING

HAND-AUGER BORING

PRELIMINARY AREA OF ENVIRONMENTAL CONCERN

AOEC 1

LLAOEC "A"/GWAOEC

AOEC 2

& GROUNDWATER AREA OF ENVIRONMENTAL CONCERN

PRELIMINARY LOW LEVEL AREA OF ENVIRONMENTAL CONCERN

Page 21: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

APPENDIX B

TABLES

Table 1 – Sample Location Rationale and Selected Analyses

Table 2 – Soil Analytical Results

Table 3 – Groundwater Analytical Results

Page 22: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Table 1

Sample Location Rationale and Selected Analyses

Replacement of Bridge No. 00488

Windham, Connecticut

ConnDOT Project No. 0163-0196

Sample

IdentificationMatrix

Sample

IntervalLocation Rationale

VOCs

(8260)

SVOCs

(8270)ETPH

PCBs

(8082)

Pesticides

(8081)

Total

RCRA 8

Metals

TCLP

RCRA 8

Metals

Ignitability,

Reactivity,

pH

B-1 Soil 0-2North of Route 66, adjacent to milling

and repaving area.X X X X X X X X

0-2 X X X X X X X X

4-6 X X X X X X X X

0-2 X X X X X X X X

6-8 X X X X X X X X

10-12 X X X X X X X X

0-2 X X X X X X X X

4-7 X X X X X X X X

0-2 X X X X X X X X

5-7 X X X X X X X X

0-2 X X X X X X X X

8-10 X X X X X X X X

Sample

IdentificationMatrix

Sample

Collection

Method

Location RationaleVOCs

(8260)

SVOCs

(8270)ETPH

PCBs

(8082)

Pesticides

(8081)

Total

RCRA 8

Metals,

Cu & Zn

MW/B-3 Groundwater Grab North of Route 66, adjacent to

proposed wingwall.X X X X X X

MW/B-4 Groundwater Grab

North of Route 66, adjacent to

proposed wingwall and proposed

roadway.

X X X X X X

B-5

X

X

Soil

Dissolved

RCRA 8

Metals, Cu & Zn

B-2 SoilNorth of Route 66, adjacent to

proposed wingwall.

B-3 Soil

B-4 Soil

B-6 Soil

North of Route 66, adjacent to

proposed wingwall.

North of Route 66, adjacent to

drainage ditch and proposed

roadway.

South of Route 66, adjacent to

proposed wingwall.

South of Route 66, adjacent to

proposed wingwall.

BL Companies Project No. 14EC0050 1 of 1 December 2016

Page 23: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Table 2

Soil Analytical Results

Replacement of Bridge No. 00488

Windham, Connecticut

ConnDOT Project No. 0163-0196

B-1 (0-2') B-2 (0-2')

Duplicate

B-2 (0-2') B-2 (4-6') B-3 (0-2') B-3 (6-8') B-3 (10-12') B-4 (0-2') B-4 (4-7') B-5 (0-2') B-5 (5-7') B-6 (0-2') B-6 (8-10') Trip Blank

10/25/2016 10/25/2016 10/25/2016 10/25/2016 10/25/2016 10/25/2016 10/25/2016 10/25/2016 10/25/2016 10/25/2016 10/25/2016 10/25/2016 10/25/2016 10/25/2016

500 2,500 2,500 338 ND ND ND ND ND ND 273 ND ND ND ND ND NA

VOCs (mg/kg)

Acetone 500 1,000 140 ND ND ND ND ND ND ND ND ND ND ND ND 0.0139 ND

SVOCs (mg/kg)

1,000* 2,500* 84 0.199 ND ND ND ND ND ND ND ND ND ND ND ND NA

Acenaphthylene 1,000 2,500 84 1.53 ND ND ND 0.252 ND ND 0.896 ND ND ND ND ND NA

Anthracene 1,000 2,500 400 0.838 ND ND ND 0.133 ND ND 0.419 ND ND ND ND ND NA

Benzo(a)anthracene 1 7.8 1 3.46 ND ND ND 0.384 ND ND 1.65 ND ND ND ND ND NA

Benzo(a)pyrene 1 1 1 3.85 ND ND ND 0.476 ND ND 2.09 ND ND ND ND ND NA

Benzo(b)fluoranthene 1 7.8 1 3.97 ND ND ND 0.509 ND ND 2.35 ND ND ND ND ND NA

Benzo(g,h,i)perylene 8.4* 78* 1* 2.38 ND ND ND 0.39 ND ND 1.43 ND ND ND ND ND NA

Benzo(k)fluoranthene 8.4 78 1 3.26 ND ND ND 0.468 ND ND 2.23 ND ND ND ND ND NA

Carbazole 31* 290* 1* 0.573 ND ND ND ND ND ND 0.461 ND ND ND ND ND NA

Chrysene 84* 780* 1* 5.39 ND ND ND 0.57 ND ND 2.97 ND ND ND ND ND NA

Dibenz(a,h)anthracene 1* 1* 1* 0.66 ND ND ND ND ND ND 0.348 ND ND ND ND ND NA

Dibenzofuran 68* 1,000* 1.4* 0.129 ND ND ND ND ND ND ND ND ND ND ND ND NA

Fluoranthene 1,000 2,500 56 10.5 ND ND ND 1.01 ND ND 6.44 ND ND ND ND ND NA

Fluorene 1,000 2,500 56 0.316 ND ND ND ND ND ND 0.203 ND ND ND ND ND NA

Indeno(1,2,3-cd)pyrene 1 7.8 1* 2.3 ND ND ND 0.375 ND ND 1.45 ND ND ND ND ND NA

2-Methylnaphthalene 270* 1,000* 5.6* 0.137 ND ND ND ND ND ND ND ND ND ND ND ND NA

Naphthalene 1,000 2,500 56 0.17 ND ND ND ND ND ND ND ND ND ND ND ND NA

Phenanthrene 1,000 2,500 40 7.47 ND ND ND 0.563 ND ND 4.56 ND ND ND ND ND NA

Pyrene 1,000 2,500 40 10.6 ND ND ND 0.968 ND ND 5.79 ND ND ND ND ND NA

Total RCRA 8 Metals (mg/kg)

Arsenic 10 10 -- 3.7 2.1 1.9 2.1 6.1 2.2 2.7 3.1 1.5 2.1 2 4.6 3.2 NA

Barium 4,700 140,000 -- 38.8 33.9 35.6 29.1 40.3 41.7 35.7 45 25.6 36.5 33.3 32.5 43.6 NA

Chromium, Total 100** 100** -- 24.5 10.6 11.5 12.2 14.6 12.6 13.2 15.4 5.1 13.5 11.4 9.3 23.9 NA

Lead 400 1,000 -- 70.4 1.8 2.6 2.5 22 2.1 2.2 71.1 1.6 8.6 2.3 10.2 7.3 NA

Mercury 20 610 -- 0.13 ND ND ND ND ND ND 0.038 ND ND ND ND ND NA

TCLP RCRA 8 Metals (mg/L)

Lead -- -- 0.15 0.024 ND ND ND 0.13 ND ND 0.07 ND 0.015 ND 0.016 ND NA

PCBs (mg/kg) 1 10 --

Aroclor 1260 1 10 -- 0.051 ND ND ND ND ND ND ND ND ND ND ND ND NA

Pesticides (mg/kg)

4,4' - DDT 1.8* 17* 0.02* 0.0308 ND ND ND 0.0163 ND ND 0.0114 ND ND ND ND ND NA

Ignitability (degrees F) -- -- -- >230 >230 >230 >230 >230 >230 >230 >230 >230 >230 >230 >230 >230 NA

pH -- -- -- 6.8 5.9 5.8 7 6.8 5.2 5.4 8 6.9 7.1 5.7 6.5 5.8 NA

Reactivity Cyanide (mg/kg) -- -- -- <1.8 <1.6 <1.6 <1.5 <1.6 <1.5 <1.6 <1.7 <1.7 <1.6 <1.6 <1.6 <1.8 NA

Reactivity Sulfide (mg/kg) -- -- -- <59 <53 <53 <51 <53 <52 <52 <56 <55 <53 <52 <55 <61 NA

CTDEEP = Connecticut Department of Energy and Environmental Protection

RSR = Remediation Standard Regulations

RES DEC = Residential Direct Exposure Criteria

I/C DEC = Industrial-Commercial Direct Exposure Criteria

GB PMC = GB Pollutant Mobility Criteria

mg/kg = milligrams per kilogram

mg/L = milligrams per liters

ND = Not detected above laboratory reporting limits

NA = Not Analyzed

NE = Not Established

* = published 2015 numeric criteria for additional polluting substances not established in 2013 RSRs

** = hexavalent chromium criteria

-- = criteria does not apply

Only detected compounds are listed on table

Shade/Bold

Concentration of Compound in Sample

= Exceeds Numeric Criteria

CTDEEP RSR

Numeric Criteria

I/C DECRES DEC GB PMC

ETPH (mg/kg)

Acenaphthene

Parameters

BL Companies Project No. 14EC0050 December 2016

Page 24: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Table 3

Groundwater Analytical Results

Replacement of Bridge No. 00488

Windham, Connecticut

ConnDOT Project No. 0163-0196

MW/B-3

Duplicate

MW/B-3 MW/B-4 Field Blank Trip Blank

10/25/2016 10/25/2016 10/25/2016 10/25/2016 10/25/2016

5 100 ND ND ND ND NA

50 5,000 ND ND ND ND ND

Benzo(a)anthracene 0.49 NE ND ND 0.13 ND NA

Benzo(a)pyrene 0.49 NE ND ND 0.17 ND NA

Benzo(b)fluoranthene NE NE 0.072 0.061 0.27 ND NA

Benzo(g,h,i)perylene NE NE ND ND 0.12 ND NA

Chrysene NE NE ND ND 0.26 ND NA

Dibenzo(a,h)anthracene 0.01 NE 0.13** 0.11** 0.13** 0.11 NA

Fluoranthene NE NE ND ND 0.77 ND NA

Indeno(1,2,3-cd)pyrene 0.49 NE 0.13 0.12 0.23 0.11 NA

Phenanthrene NE NE 0.086 0.078 0.81 ND NA

Pyrene NE NE ND ND 0.62 ND NA

5 500 0.29 0.26 3.38 0.22 NA

* * ND ND ND ND NA

* * ND ND ND ND NA

Total Metals (µg/L)

Arsenic 0.021 100 4 <4 <4 <4 NA

Barium NE 5,000 103 ND ND ND NA

Lead 9.8 100 5.5 ND ND ND NA

Chromium 342 1,000 13.9 ND ND ND NA

Dissolved Metals (µg/L)

Arsenic 0.021 100 <4 <4 <4 <4 NA

MCL = maximum concentration limits listed in the DEEP General Permit for Discharge of Groundwater

mg/L = milligrams per liter

µg/L = micrograms per liter

ND = Not Detected above the Laboratory Reporting Detection Limit

NE = None Established

* = Limits Established for Individual Compounds

** = Detected in the field blank indicating potential cross-contamination

Only detected compounds are listed on table

Shade/Bold

PCBs (µg/L)

Pesticides (µg/L)

= Exceeds Numeric Criteria

ETPH (mg/L)

Total VOCs (µg/L)

SVOCs (µg/L)

Total PAHs

Concentration of Compound in Sample

Parameters

Surface Water Sanitary Sewer

General Permit MCLs

BL Companies Project No. 14EC0050 December 2016

Page 25: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

APPENDIX C

BORING LOGS

Page 26: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

TOPSOIL (6").Tan fine to medium SAND, trace silt (18").

End of exploration at 2 ft bgs.

5

10

15

20

24

Sample collected at 0-2'

bgs.

B-1

10/25/2016

14EC0050

Wesley Johnson

Date:

Borehole Dia: 2 Inches

Drill Rig: N/A

Architecture

Engineering

Logged by: Driller:

Dia

gra

m

Page 1

CEI

Gra

ph

ic L

og

DescriptionDep

th (

ft)

Sa

mp

le

Rec

ov

ery

(in

)

Co

mp

leti

on

G:\

JOB

S1

4\1

4E

C\1

4E

C0

05

0\E

NV

IRO

\SIT

E-A

SS

T\B

ori

ng

Lo

gs\

14

EC

00

50

Bo

rin

g l

og

s 2

01

6 .

wl2

Bill Zimmerman

Remarks

Proportions Used: Trace = 1 to 10%, Little = 10 to 20%, Some = 20 to 30%, And = 30 to 50%

Drill Method: Hand Auger

PID

Environmental Science

Land Surveying

BORING LOG Boring No.:

Project No.:

Site Name: Bridge No. 488

Weather: Cloudy, 48°F

Boring Co.:

Page 27: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

TOPSOIL (6").

Tan fine to medium SAND, trace silt (18").

Tan fine to medium SAND, trace silt (42").

Tan fine to medium SAND, trace silt, damp at 14' bgs(36").

End of exploration at 15' bgs.

5

10

15

20

23

42

36

0.0

0.0

0.0

Sample collected at 0-2'

bgs.

Sample collected at 6-8 '

bgs.

Sample collected at 10-

12' bgs.

B-2

10/25/2016

14EC0050

Wesley Johnson

Date:

Borehole Dia: 2 Inches

Drill Rig: Geoprobe

Architecture

Engineering

Logged by: Driller:

Dia

gra

m

Page 1

CEI

Gra

ph

ic L

og

DescriptionDep

th (

ft)

Sa

mp

le

Rec

ov

ery

(in

)

Co

mp

leti

on

G:\

JOB

S1

4\1

4E

C\1

4E

C0

05

0\E

NV

IRO

\SIT

E-A

SS

T\B

ori

ng

Lo

gs\

14

EC

00

50

Bo

rin

g l

og

s 2

01

6 .

wl2

Bob Miller

Remarks

Proportions Used: Trace = 1 to 10%, Little = 10 to 20%, Some = 20 to 30%, And = 30 to 50%

Drill Method: Direct Push

PID

Environmental Science

Land Surveying

BORING LOG Boring No.:

Project No.:

Site Name: Bridge No. 488

Weather: Cloudy, 48°F

Boring Co.:

Page 28: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

TOPSOIL (6").Tan fine to coarse SAND, trace silt and fine to coarsegravel (17").

Tan fine to coarse SAND, trace silt and fine to coarsegravel (6").Tan fine to medium SAND, trace silt (25").

Tan fine to medium SAND, trace silt, trace fine to mediumgravel (33").

Tan fine to medium SAND, trace silt, trace fine tomedium gravel (16").

Grey fine to coarse SAND, trace silt and fine to mediumgravel, wet (22").

Black organics/peat (22").End of exploration at 20 ft bgs.

5

10

15

20

23

31

33

40

0.0

0.0

0.0

Sample collected at 0-2'

bgs.

Sample collected at 6-8 '

bgs.

Sample collected at 10-

12' bgs.

Temporary well screened

10-20' bgs and removed

after sampling.

B-3

10/25/2016

14EC0050

Wesley Johnson

Date:

Borehole Dia: 2 Inches

Drill Rig: Geoprobe

Architecture

Engineering

Logged by: Driller:

Dia

gra

m

Page 1

CEI

Gra

ph

ic L

og

DescriptionDep

th (

ft)

Sa

mp

le

Rec

ov

ery

(in

)

Co

mp

leti

on

G:\

JOB

S1

4\1

4E

C\1

4E

C0

05

0\E

NV

IRO

\SIT

E-A

SS

T\B

ori

ng

Lo

gs\

14

EC

00

50

Bo

rin

g l

og

s 2

01

6 .

wl2

Bob Miller

Remarks

Proportions Used: Trace = 1 to 10%, Little = 10 to 20%, Some = 20 to 30%, And = 30 to 50%

Drill Method: Direct Push

PID

Environmental Science

Land Surveying

BORING LOG Boring No.:

Project No.:

Site Name: Bridge No. 488

Weather: Cloudy, 48°F

Boring Co.:

Page 29: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

TOPSOIL (11").

Tan fine to medium SAND, trace silt and fine gravel (6").

Dark brown fine SAND, some silt (6").

COBBLES and fine to coarse SAND, trace silt (6").

Tan fine to coarse SAND, trace fine to medium gravel andSilt (10").Red-brown medium SAND, trace fine gravel (12").

Red-brown fine to coarse SAND, some fine to mediumgravel, wet at 9' bsg (18").

Tan fine to medium SAND, some fine to medium gravel,trace silt, wet (8").

End of exploration at 10 ft bgs.

5

10

15

20

40

48

0.0

0.0

Sample collected at 0-2'

bgs.

Sample collected at 4-7 '

bgs.

Temporary well screened

0-10' bgs and removed

after sampling.

B-4

10/25/2016

14EC0050

Wesley Johnson

Date:

Borehole Dia: 2 Inches

Drill Rig: Geoprobe

Architecture

Engineering

Logged by: Driller:

Dia

gra

m

Page 1

CEI

Gra

ph

ic L

og

DescriptionDep

th (

ft)

Sa

mp

le

Rec

ov

ery

(in

)

Co

mp

leti

on

G:\

JOB

S1

4\1

4E

C\1

4E

C0

05

0\E

NV

IRO

\SIT

E-A

SS

T\B

ori

ng

Lo

gs\

14

EC

00

50

Bo

rin

g l

og

s 2

01

6 .

wl2

Bob Miller

Remarks

Proportions Used: Trace = 1 to 10%, Little = 10 to 20%, Some = 20 to 30%, And = 30 to 50%

Drill Method: Direct Push

PID

Environmental Science

Land Surveying

BORING LOG Boring No.:

Project No.:

Site Name: Bridge No. 488

Weather: Cloudy, 48°F

Boring Co.:

Page 30: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

TOPSOIL (4").Tan fine SAND, little silt, trace fine to coarse gravel (12").

Tan fine to medium SAND, trace fine to coarse gravel andsilt (20").

Tan fine to medium SAND, trace fine to coarse gravel andsilt (12").

COBBLE (4").

Tan, fine to medium SAND, trace fine gravel and silt(14").

Tan, brown, grey mixture of fine to coarse SAND, fine tocoarse gravel and cobbles, trace silt (36").

Fine to medium SAND, trace silt (38").

Black organics SILT/PEAT (8").

Refusal at 19 ft bgs.

5

10

15

20

36

32

40

46

0.0

0.0

0.0

0.0

Sample collected at 0-2'

bgs.

Sample collected at 5-7 '

bgs.

B-5

10/25/2016

14EC0050

Wesley Johnson

Date:

Borehole Dia: 2 Inches

Drill Rig: Geoprobe

Architecture

Engineering

Logged by: Driller:

Dia

gra

m

Page 1

CEI

Gra

ph

ic L

og

DescriptionDep

th (

ft)

Sa

mp

le

Rec

ov

ery

(in

)

Co

mp

leti

on

G:\

JOB

S1

4\1

4E

C\1

4E

C0

05

0\E

NV

IRO

\SIT

E-A

SS

T\B

ori

ng

Lo

gs\

14

EC

00

50

Bo

rin

g l

og

s 2

01

6 .

wl2

Bob Miller

Remarks

Proportions Used: Trace = 1 to 10%, Little = 10 to 20%, Some = 20 to 30%, And = 30 to 50%

Drill Method: Direct Push

PID

Environmental Science

Land Surveying

BORING LOG Boring No.:

Project No.:

Site Name: Bridge No. 488

Weather: Cloudy, 48°F

Boring Co.:

Page 31: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

TOPSOIL (4").Tan fine to medium SAND, trace silt (6").

Black, tan and orange fine to coarse SAND, trace silt, noodor (18").

Orange-tan fine to medium SAND, little silt (12").

Tan fine to medium SAND, trace coarse sand and silt(15").

Tan fine to coarse SAND, trace fine gravel and silt (18").

Brown to tan fine SAND, little silt, damp (8").

Tan to light grey fine to coarse GRAVEL, some fine tocoarse sand, trace small cobbles and silt, dry (34").

End of exploration at 15 ft bgs.

5

10

15

20

38

33

42

0.0

0.0

0.0

Sample collected at 0-2'

bgs.

Sample collected at 8-10'

bgs.

B-6

10/25/2016

14EC0050

Wesley Johnson

Date:

Borehole Dia: 2 Inches

Drill Rig: Geoprobe

Architecture

Engineering

Logged by: Driller:

Dia

gra

m

Page 1

CEI

Gra

ph

ic L

og

DescriptionDep

th (

ft)

Sa

mp

le

Rec

ov

ery

(in

)

Co

mp

leti

on

G:\

JOB

S1

4\1

4E

C\1

4E

C0

05

0\E

NV

IRO

\SIT

E-A

SS

T\B

ori

ng

Lo

gs\

14

EC

00

50

Bo

rin

g l

og

s 2

01

6 .

wl2

Bob Miller

Remarks

Proportions Used: Trace = 1 to 10%, Little = 10 to 20%, Some = 20 to 30%, And = 30 to 50%

Drill Method: Direct Push

PID

Environmental Science

Land Surveying

BORING LOG Boring No.:

Project No.:

Site Name: Bridge No. 488

Weather: Cloudy, 48°F

Boring Co.:

Page 32: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

APPENDIX D

LABORATORY ANALYTICAL REPORTS

Page 33: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

11/03/16

Technical Report for

BL Companies

Bridge 00488, Route 66, Windham, CT

14EC0050

SGS Accutest Job Number: MC48470

Sampling Date: 10/25/16

Report to:

BL Companies355 Research ParkwayMeriden, CT [email protected]

ATTN: Joy Kloss

Total number of pages in report:

Certifications: MA (M-MA136,SW846 NELAC) CT (PH-0109) NH (250210) RI (00071) FL (E87579) NY (11791)

NJ (MA926) PA (6801121) ND (R-188) CO (MA00136) MN (11546AA) NC (653) IL (002337) WI (399080220)

DoD ELAP (L-A-B L2235)

This report shall not be reproduced, except in its entirety, without the written approval of SGS Accutest.

Test results relate only to samples analyzed.

New England • 50 D'Angelo Drive • Building 1 • Marlborough, MA 01752 • tel: 508-481-6200 • fax: 508-481-7753 • http://www.accutest.com

Test results contained within this data package meet the requirements

of the National Environmental Laboratory Accreditation Program

and/or state specific certification programs as applicable.

Client Service contact: Jeremy Vienneau 508-481-6200

H. (Brad) MadadianLab Director

New England 11/03/16

e-Hardcopy 2.0Automated Report

397

SGS Accutest is the sole authority for authorizing edits or modifications to this document.Unauthorized modification of this report is strictly prohibited.

1 of 397

MC48470

Page 34: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Table of Contents-1-

Sections:

Section 1: Sample Summary ................................................................................................... 4Section 2: Case Narrative/Conformance Summary .............................................................. 7Section 3: Summary of Hits .................................................................................................... 12Section 4: Sample Results ........................................................................................................ 19

4.1: MC48470-1: B-4/0-2 .................................................................................................... 204.2: MC48470-1A: B-4/0-2 ................................................................................................. 314.3: MC48470-2: B-4/4-6 .................................................................................................... 324.4: MC48470-2A: B-4/4-6 ................................................................................................. 434.5: MC48470-3: B-6/0-2 .................................................................................................... 444.6: MC48470-3A: B-6/0-2 ................................................................................................. 554.7: MC48470-4: B-6/8-10 .................................................................................................. 564.8: MC48470-4A: B-6/8-10 ............................................................................................... 674.9: MC48470-5: B-3/0-2 .................................................................................................... 684.10: MC48470-5A: B-3/0-2 ............................................................................................... 794.11: MC48470-6: B-3/6-8 .................................................................................................. 804.12: MC48470-6A: B-3/6-8 ............................................................................................... 914.13: MC48470-7: B-3/10-12 .............................................................................................. 924.14: MC48470-7A: B-3/10-12 ........................................................................................... 1034.15: MC48470-8: B-2/0-2 .................................................................................................. 1044.16: MC48470-8A: B-2/0-2 ............................................................................................... 1154.17: MC48470-9: B-2/4-6 .................................................................................................. 1164.18: MC48470-9A: B-2/4-6 ............................................................................................... 1274.19: MC48470-10: B-5/0-2 ................................................................................................ 1284.20: MC48470-10A: B-5/0-2 ............................................................................................. 1394.21: MC48470-11: B-5/5-7 ................................................................................................ 1404.22: MC48470-11A: B-5/5-7 .............................................................................................. 1514.23: MC48470-12: DUP ..................................................................................................... 1524.24: MC48470-12A: DUP .................................................................................................. 1634.25: MC48470-13: B-1/0-2 ................................................................................................ 1644.26: MC48470-13A: B-1/0-2 ............................................................................................. 1754.27: MC48470-14: TRIP BLANK ..................................................................................... 1764.28: MC48470-15: MW/B-4 .............................................................................................. 1794.29: MC48470-15F: MW/B-4 ............................................................................................ 1894.30: MC48470-16: MW/B-3 .............................................................................................. 1904.31: MC48470-16F: MW/B-3 ............................................................................................ 2004.32: MC48470-17: DUP ..................................................................................................... 2014.33: MC48470-17F: DUP ................................................................................................... 2114.34: MC48470-19: FIELD BLANK ................................................................................... 2124.35: MC48470-19F: FIELD BLANK ................................................................................ 222

Section 5: Misc. Forms ............................................................................................................ 2235.1: Chain of Custody ........................................................................................................... 2245.2: RCP Form ...................................................................................................................... 229

12

34

56

78

910

2 of 397

MC48470

Page 35: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Table of Contents-2-

Sections:

5.3: Sample Tracking Chronicle ........................................................................................... 2305.4: QC Evaluation: CT RCP Limits .................................................................................... 240

Section 6: GC/MS Volatiles - QC Data Summaries .............................................................. 2656.1: Method Blank Summary ................................................................................................ 2666.2: Blank Spike Summary ................................................................................................... 2786.3: Blank Spike/Blank Spike Duplicate Summary .............................................................. 2876.4: Internal Standard Area Summaries ................................................................................ 2906.5: Surrogate Recovery Summaries ..................................................................................... 297

Section 7: GC/MS Semi-volatiles - QC Data Summaries ..................................................... 2997.1: Method Blank Summary ................................................................................................ 3007.2: Blank Spike Summary ................................................................................................... 3067.3: Blank Spike/Blank Spike Duplicate Summary .............................................................. 3097.4: Internal Standard Area Summaries ................................................................................ 3127.5: Surrogate Recovery Summaries ..................................................................................... 316

Section 8: GC Semi-volatiles - QC Data Summaries ............................................................ 3198.1: Method Blank Summary ................................................................................................ 3208.2: Blank Spike Summary ................................................................................................... 3268.3: Blank Spike/Blank Spike Duplicate Summary .............................................................. 3318.4: DDT/Endrin Breakdown Checks ................................................................................... 3328.5: Surrogate Recovery Summaries ..................................................................................... 337

Section 9: Metals Analysis - QC Data Summaries ................................................................ 3439.1: Prep QC MP26949: As,Ba,Cd,Cr,Pb,Se,Ag .................................................................. 3449.2: Prep QC MP26951: As,Ba,Cd,Cr,Pb,Se,Ag .................................................................. 3569.3: Prep QC MP26953: Hg .................................................................................................. 3669.4: Prep QC MP26955: As,Ba,Cd,Cr,Cu,Pb,Se,Ag,Zn ....................................................... 3709.5: Prep QC MP26958: Hg .................................................................................................. 3769.6: Prep QC MP26959: Hg .................................................................................................. 3789.7: Prep QC MP26965: As,Ba,Cd,Cr,Pb,Se,Ag .................................................................. 383

Section 10: General Chemistry - QC Data Summaries ........................................................ 39510.1: Method Blank and Spike Results Summary ................................................................ 39610.2: Duplicate Results Summary ........................................................................................ 397

12

34

56

78

910

3 of 397

MC48470

Page 36: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Sample Summary

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID

MC48470-1 10/25/16 08:40 BZ 10/26/16 SO Soil B-4/0-2

MC48470-1A 10/25/16 08:40 BZ 10/26/16 SO Soil B-4/0-2

MC48470-2 10/25/16 08:50 BZ 10/26/16 SO Soil B-4/4-6

MC48470-2A 10/25/16 08:50 BZ 10/26/16 SO Soil B-4/4-6

MC48470-3 10/25/16 10:05 BZ 10/26/16 SO Soil B-6/0-2

MC48470-3A 10/25/16 10:05 BZ 10/26/16 SO Soil B-6/0-2

MC48470-4 10/25/16 10:15 BZ 10/26/16 SO Soil B-6/8-10

MC48470-4A 10/25/16 10:15 BZ 10/26/16 SO Soil B-6/8-10

MC48470-5 10/25/16 10:55 BZ 10/26/16 SO Soil B-3/0-2

MC48470-5A 10/25/16 10:55 BZ 10/26/16 SO Soil B-3/0-2

MC48470-6 10/25/16 11:00 BZ 10/26/16 SO Soil B-3/6-8

MC48470-6A 10/25/16 11:00 BZ 10/26/16 SO Soil B-3/6-8

MC48470-7 10/25/16 11:02 BZ 10/26/16 SO Soil B-3/10-12

Soil samples reported on a dry weight basis unless otherwise indicated on result page.

4 of 397

MC48470

1

Page 37: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Sample Summary(continued)

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID

MC48470-7A 10/25/16 11:02 BZ 10/26/16 SO Soil B-3/10-12

MC48470-8 10/25/16 11:40 BZ 10/26/16 SO Soil B-2/0-2

MC48470-8A 10/25/16 11:40 BZ 10/26/16 SO Soil B-2/0-2

MC48470-9 10/25/16 11:50 BZ 10/26/16 SO Soil B-2/4-6

MC48470-9A 10/25/16 11:50 BZ 10/26/16 SO Soil B-2/4-6

MC48470-10 10/25/16 12:25 BZ 10/26/16 SO Soil B-5/0-2

MC48470-10A10/25/16 12:25 BZ 10/26/16 SO Soil B-5/0-2

MC48470-11 10/25/16 12:35 BZ 10/26/16 SO Soil B-5/5-7

MC48470-11A10/25/16 12:35 BZ 10/26/16 SO Soil B-5/5-7

MC48470-12 10/25/16 13:00 BZ 10/26/16 SO Soil DUP

MC48470-12A10/25/16 13:00 BZ 10/26/16 SO Soil DUP

MC48470-13 10/25/16 13:40 BZ 10/26/16 SO Soil B-1/0-2

MC48470-13A10/25/16 13:40 BZ 10/26/16 SO Soil B-1/0-2

Soil samples reported on a dry weight basis unless otherwise indicated on result page.

5 of 397

MC48470

1

Page 38: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Sample Summary(continued)

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID

MC48470-14 10/25/16 00:00 BZ 10/26/16 AQ Trip Blank Water TRIP BLANK

MC48470-15 10/25/16 09:50 BZ 10/26/16 AQ Ground Water MW/B-4

MC48470-15F10/25/16 09:50 BZ 10/26/16 AQ Groundwater Filtered MW/B-4

MC48470-16 10/25/16 11:45 BZ 10/26/16 AQ Ground Water MW/B-3

MC48470-16F10/25/16 11:45 BZ 10/26/16 AQ Groundwater Filtered MW/B-3

MC48470-17 10/25/16 12:00 BZ 10/26/16 AQ Ground Water DUP

MC48470-17F10/25/16 12:00 BZ 10/26/16 AQ Groundwater Filtered DUP

MC48470-18 10/25/16 00:00 BZ 10/26/16 AQ Trip Blank Water TRIP BLANK

MC48470-19 10/25/16 09:20 BZ 10/26/16 AQ Field Blank Water FIELD BLANK

MC48470-19F10/25/16 09:20 BZ 10/26/16 AQ Field Blank Filtered FIELD BLANK

Soil samples reported on a dry weight basis unless otherwise indicated on result page.

6 of 397

MC48470

1

Page 39: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

16 Sample(s), 1 Trip Blank(s) and 1 Field Blank(s) were collected on 10/25/2016 and were received at SGS Accutest New England on 10/26/2016 properly preserved, at 1.7 Deg. C and intact. These Samples received a job number of MC48470. A listing of the Laboratory Sample ID, Client Sample ID and dates of collection are presented in the Results Summary Section of this report.

Except as noted below, all method specified calibrations and quality control performance criteria were met for this job. For more information, please refer to QC summary pages.

Client: BL Companies

Site: Bridge 00488, Route 66, Windham, CT

Job No MC48470

Report Date 11/3/2016 12:17:10 P

SAMPLE DELIVERY GROUP CASE NARRATIVE

Volatiles by GCMS By Method SW846 8260CMatrix: AQ Batch ID: MSN3894

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Quadratic regression is employed for initial calibration standard MSN3876-ICC3876 for bromoform.

Minimum response factor for 2-Butanone is less than 0.05 in MSN3876-ICC3876.

Continuing Calibration for bromomethane, vinyl chloride, Chloromethane, Tetrahydrofuran outside of acceptance criteria (biased low). Reporting Limit response verified by low-level standard.

Matrix: SO Batch ID: MSM2925

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Continuing calibration check standard for freon-113, acetone, trans-1,2-dichloroethene, carbon disulfide, 2-butanone, 2,2-dichloropropane exceed 20% Difference (biased high). Associated samples are non-detect for this compound.

Initial Calibration Verification MSM2904-ICV2904 for dichlorodifluoromethane, chloromethane, 2-butanone exceed 30% difference (biased high). Associated samples are non-detect for this compound.

MSM2925-BS for Acetone: Outside control limits. Associated samples may be high biased for this compound.

MSM2925-BS for 2-Butanone (MEK), Chloroethane and MSM2925-MB for Dibromofluoromethane: Outside RCP control limits.

Matrix: SO Batch ID: MSM2926

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Continuing calibration check standard for freon-113, 1,1-dichloroethene, acetone, trans-1,2-dichloroethene, carbon disulfide, 2-butanone, 2,2-dichloropropane, bromochloromethane, chloroform, trans-1,3-dichloropropene exceed 20% Difference (biased high). Associated samples are non-detect for this compound.

Initial Calibration Verification MSM2904-ICV2904 for dichlorodifluoromethane, chloromethane, 2-butanone exceed 30% difference (biased high). Associated samples are non-detect for this compound.

MC48470-8: Confirmation run for surrogate recoveries.

MC48470-5: Confirmation run for surrogate recoveries.

MC48470-12: Confirmation run for surrogate recoveries.

MC48470-4: Confirmation run for surrogate recoveries.

MC48470-7: Confirmation run for surrogate recoveries.

MC48470-6 for Dibromofluoromethane: Outside control limits. Associated target analytes are non-detect.

MC48470-1 for Dibromofluoromethane: Outside control limits. Associated target analytes are non-detect.

MSM2926-BS for Acetone: Outside control limits. Associated samples may be high biased for this compound.

MC48470-9 for Dibromofluoromethane: Outside control limits. Associated target analytes are non-detect.

MC48470-10 for Dibromofluoromethane: Outside control limits. Associated target analytes are non-detect.

Thursday, November 03, 2016 Page 1 of 5

7 of 397

MC48470

2

Page 40: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Volatiles by GCMS By Method SW846 8260CMatrix: SO Batch ID: MSM2926

Initial Calibration Verification MSM2904-ICV2904 for dichlorodifluoromethane, chloromethane, 2-butanone exceed 30% difference (biased high). Associated samples are non-detect for this compound.

MC48470-13 for Dibromofluoromethane: Outside control limits. Associated target analytes are non-detect.

MC48470-11 for Dibromofluoromethane: Outside control limits. Associated target analytes are non-detect.

MSM2926-MB for Dibromofluoromethane: Outside RCP control limits.

MC48470-4,5,7,8,10,12,13 has internal standards outside control limits due to possible matrix interference. Confirmed by reanalysis.

Matrix: SO Batch ID: MSM2927

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Blank Spike Recovery(s) for 2-Butanone (MEK), Acetone are outside control limits. Associated samples may be high biased for this compound.

Continuing calibration check standard for freon-113, 1,1-dichloroethene, acetone, methylene chloride, trans-1,2-dichloroethene, carbon disulfide, 2-butanone, 1,1-dichloroethane, 2,2-dichloropropane, chloroform, 1,1,1-trichloroethane, trans-1,3-dichloropropene exceed 20% Difference (biased high). Associated sample result (acetone) may be biased high or samples are non-detect for this compound.

MC48470-10,13: Confirmation run for internal standard areas.

MC48470-5,7,8,10,12,13 for Dibromofluoromethane: Outside control limits. Associated target analytes are non-detect.

MC48470-4 for Dibromofluoromethane: Outside control limits due to possible matrix interference. Confirmed by reanalysis.

MSM2927-MB for Dibromofluoromethane: Outside control limits. Associated target analytes are non-detect.

MC48470-10,13 has internal standards outside control limits due to possible matrix interference. Confirmed by reanalysis.

MSM2927-BS for Carbon disulfide, Freon 113: Outside RCP control limits.

Extractables by GCMS By Method SW846 8270DMatrix: AQ Batch ID: OP49052

All samples were extracted within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

OP49052-BS for Hexachlorocyclopentadiene, Pyridine: Outside RCP control limits.

Blank Spike Duplicate is being reported but is not required for RCP criteria.

Quadratic regression is employed for initial calibration standard MSW1235-ICC1235 for 2,4-Dinitrophenol, 4,6-Dinitro-2-methylphenol

Continuing Calibration MSW1243-CC1235 for Pentachlorophenol outside of acceptance criteria (biased low). Reporting Limit Response verified by low-level standard.

Matrix: SO Batch ID: OP49038

All samples were extracted within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Continuing calibration check standard MSR1872-CC1866 for Pentachlorophenol exceed 20% Difference (biased high). Only OP49038-MB/BS associated with this check standard.

Quadratic regression is employed for initial calibration standard MSR1866-ICC1866 for 2,4-Dinitrophenol, 4,6-Dinitro-2-methylphenol, Pentachlorophenol.

Continuing Calibration MSW1243-CC1235 for Pentachlorophenol outside of acceptance criteria (biased low). Reporting Limit Response verified by low-level standard.

OP49038-BS for Aniline, 4-Chloroaniline: Outside RCP control limits.

Thursday, November 03, 2016 Page 2 of 5

8 of 397

MC48470

2

Page 41: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Extractables by GCMS By Method SW846 8270D BY SIMMatrix: AQ Batch ID: OP49053

All samples were extracted within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Only PAHs requested.

Quadratic regression is employed for initial calibration standard MSI3916-ICC3916 for Indeno[1,2,3-cd]pyrene, Dibenz[a,h]anthracene.

Extractables by GC By Method CT-ETPH 7/06Matrix: AQ Batch ID: OP49058

All samples were extracted within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Matrix: SO Batch ID: OP49040

All samples were extracted within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Extractables by GC By Method SW846 8081BMatrix: AQ Batch ID: OP49045

All samples were extracted within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

MC48470-16, -17 for Decachlorobiphenyl (sig#1): Outside RCP control limits.

Matrix: SO Batch ID: OP49036

All samples were extracted within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Extractables by GC By Method SW846 8082AMatrix: AQ Batch ID: OP49046

All samples were extracted within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Matrix: SO Batch ID: OP49033

All samples were extracted within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Thursday, November 03, 2016 Page 3 of 5

9 of 397

MC48470

2

Page 42: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Metals By Method SW846 6010CMatrix: AQ Batch ID: MP26955

All samples were digested within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Sample(s) MC48482-5SDL were used as the QC samples for metals.

RPD(s) for Serial Dilution for Chromium, Copper, Lead are outside control limits for sample MP26955-SD1. Percent difference acceptable due to low initial sample concentration (< 50 times IDL).

MP26955-MB2 for Lead: Acceptable, all associated sample concentration is less than RL for this analyte bracketed by this filter blank.

Only selected metals requested.

Matrix: LEACHATE Batch ID: MP26951

All samples were digested within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Sample(s) MC48470-1AMS, MC48470-1AMSD, MC48470-1ASDL were used as the QC samples for metals.

RPD(s) for Serial Dilution for Cadmium, Chromium, Selenium, Silver are outside control limits for sample MP26951-SD1. Percent difference acceptable due to low initial sample concentration (< 50 times IDL).

MP26951-SD1 for Lead: Serial dilution indicates possible matrix interference.

Matrix: SO Batch ID: MP26949

All samples were digested within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Sample(s) MC48470-9MS, MC48470-9MSD, MC48470-9SDL were used as the QC samples for metals.

RPD(s) for Serial Dilution for Cadmium are outside control limits for sample MP26949-SD1. Percent difference acceptable due to low initial sample concentration (< 50 times IDL).

Only selected metals requested.

Matrix: SO Batch ID: MP26965

All samples were digested within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Sample(s) MC48470-12MS, MC48470-12MSD, MC48470-12SDL were used as the QC samples for metals.

RPD(s) for Serial Dilution for Arsenic, Cadmium, Selenium, Silver are outside control limits for sample MP26965-SD1. Percent difference acceptable due to low initial sample concentration (< 50 times IDL).

Only selected metals requested.

Thursday, November 03, 2016 Page 4 of 5

10 of 397

MC48470

2

Page 43: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Metals By Method SW846 7470AMatrix: AQ Batch ID: MP26958

All samples were digested within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Matrix: LEACHATE Batch ID: MP26953

All samples were digested within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Sample(s) MC48470-1AMS, MC48470-1AMSD were used as the QC samples for metals.

Metals By Method SW846 7471BMatrix: SO Batch ID: MP26959

All samples were digested within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Sample(s) MC48470-9MS, MC48470-9MSD were used as the QC samples for metals.

Wet Chemistry By Method SM 2540G-97 MODMatrix: SO Batch ID: GN55179

Sample(s) MC48470-6DUP were used as the QC samples for Solids, Percent.

Matrix: SO Batch ID: GN55180

Sample(s) MC48470-9DUP were used as the QC samples for Solids, Percent.

Wet Chemistry By Method SW846 1020Matrix: SO Batch ID: GN55217

Sample(s) MC48470-1DUP were used as the QC samples for Ignitability (Flashpoint).

Wet Chemistry By Method SW846 CHAP7Matrix: SO Batch ID: GP21025

All samples were distilled within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

Matrix: SO Batch ID: GP21026

All samples were distilled within the recommended method holding time.

All samples were analyzed within the recommended method holding time.

All method blanks for this batch meet method specific criteria.

SGS Accutest New England certifies that all analysis were performed within method specification. It is further recommended that this report to be used in its entirety.The Laboratory Director for SGS Accutest New England or assignee as verified by the signature on the cover page has authorized the release of this report(MC48470).

Thursday, November 03, 2016 Page 5 of 5

11 of 397

MC48470

2

Page 44: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Summary of Hits Page 1 of 7 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

Lab Sample ID Client Sample ID Result/Analyte Qual RL MDL Units Method

MC48470-1 B-4/0-2

Acenaphthylene 896 110 ug/kg SW846 8270DAnthracene 419 110 ug/kg SW846 8270DBenzo(a)anthracene 1650 110 ug/kg SW846 8270DBenzo(a)pyrene 2090 280 ug/kg SW846 8270DBenzo(b)fluoranthene 2350 110 ug/kg SW846 8270DBenzo(g,h,i)perylene 1430 110 ug/kg SW846 8270DBenzo(k)fluoranthene 2230 110 ug/kg SW846 8270DCarbazole 461 110 ug/kg SW846 8270DChrysene 2970 110 ug/kg SW846 8270DDibenzo(a,h)anthracene 348 110 ug/kg SW846 8270DFluoranthene 6440 110 ug/kg SW846 8270DFluorene 203 110 ug/kg SW846 8270DIndeno(1,2,3-cd)pyrene 1450 280 ug/kg SW846 8270DPhenanthrene 4560 110 ug/kg SW846 8270DPyrene 5790 110 ug/kg SW846 8270DCT-ETPH (C9-C36) 273 18 mg/kg CT-ETPH 7/064,4'-DDT 11.4 5.6 ug/kg SW846 8081BArsenic 3.1 0.88 mg/kg SW846 6010CBarium 45.0 4.4 mg/kg SW846 6010CChromium 15.4 0.88 mg/kg SW846 6010CLead 71.1 0.88 mg/kg SW846 6010CMercury 0.038 0.035 mg/kg SW846 7471BIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 8.0 su SW846 9045D

MC48470-1A B-4/0-2

Lead 0.070 0.010 mg/l SW846 6010C

MC48470-2 B-4/4-6

Arsenic 1.5 0.88 mg/kg SW846 6010CBarium 25.6 4.4 mg/kg SW846 6010CChromium 5.1 0.88 mg/kg SW846 6010CLead 1.6 0.88 mg/kg SW846 6010CIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 6.9 su SW846 9045D

MC48470-2A B-4/4-6

No hits reported in this sample.

12 of 397

MC48470

3

Page 45: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Summary of Hits Page 2 of 7 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

Lab Sample ID Client Sample ID Result/Analyte Qual RL MDL Units Method

MC48470-3 B-6/0-2

Arsenic 4.6 0.88 mg/kg SW846 6010CBarium 32.5 4.4 mg/kg SW846 6010CChromium 9.3 0.88 mg/kg SW846 6010CLead 10.2 0.88 mg/kg SW846 6010CIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 6.5 su SW846 9045D

MC48470-3A B-6/0-2

Lead 0.016 0.010 mg/l SW846 6010C

MC48470-4 B-6/8-10

Acetone a 13.9 13 ug/kg SW846 8260CArsenic 3.2 1.0 mg/kg SW846 6010CBarium 43.6 5.1 mg/kg SW846 6010CChromium 23.9 1.0 mg/kg SW846 6010CLead 7.3 1.0 mg/kg SW846 6010CIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 5.8 su SW846 9045D

MC48470-4A B-6/8-10

No hits reported in this sample.

MC48470-5 B-3/0-2

Acenaphthylene 252 100 ug/kg SW846 8270DAnthracene 133 100 ug/kg SW846 8270DBenzo(a)anthracene 384 100 ug/kg SW846 8270DBenzo(a)pyrene 476 260 ug/kg SW846 8270DBenzo(b)fluoranthene 509 100 ug/kg SW846 8270DBenzo(g,h,i)perylene 390 100 ug/kg SW846 8270DBenzo(k)fluoranthene 468 100 ug/kg SW846 8270DChrysene 570 100 ug/kg SW846 8270DFluoranthene 1010 100 ug/kg SW846 8270DIndeno(1,2,3-cd)pyrene 375 260 ug/kg SW846 8270DPhenanthrene 563 100 ug/kg SW846 8270DPyrene 968 100 ug/kg SW846 8270D4,4'-DDT 16.3 5.1 ug/kg SW846 8081BArsenic 6.1 0.87 mg/kg SW846 6010CBarium 40.3 4.4 mg/kg SW846 6010CChromium 14.6 0.87 mg/kg SW846 6010C

13 of 397

MC48470

3

Page 46: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Summary of Hits Page 3 of 7 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

Lab Sample ID Client Sample ID Result/Analyte Qual RL MDL Units Method

Lead 22.0 0.87 mg/kg SW846 6010CIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 6.8 su SW846 9045D

MC48470-5A B-3/0-2

Lead 0.13 0.010 mg/l SW846 6010C

MC48470-6 B-3/6-8

Arsenic 2.2 0.85 mg/kg SW846 6010CBarium 41.7 4.3 mg/kg SW846 6010CChromium 12.6 0.85 mg/kg SW846 6010CLead 2.1 0.85 mg/kg SW846 6010CIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 5.2 su SW846 9045D

MC48470-6A B-3/6-8

No hits reported in this sample.

MC48470-7 B-3/10-12

Arsenic 2.7 0.84 mg/kg SW846 6010CBarium 35.7 4.2 mg/kg SW846 6010CChromium 13.2 0.84 mg/kg SW846 6010CLead 2.2 0.84 mg/kg SW846 6010CIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 5.4 su SW846 9045D

MC48470-7A B-3/10-12

No hits reported in this sample.

MC48470-8 B-2/0-2

Arsenic 2.1 0.85 mg/kg SW846 6010CBarium 33.9 4.3 mg/kg SW846 6010CChromium 10.6 0.85 mg/kg SW846 6010CLead 1.8 0.85 mg/kg SW846 6010CIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 5.9 su SW846 9045D

14 of 397

MC48470

3

Page 47: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Summary of Hits Page 4 of 7 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

Lab Sample ID Client Sample ID Result/Analyte Qual RL MDL Units Method

MC48470-8A B-2/0-2

No hits reported in this sample.

MC48470-9 B-2/4-6

Arsenic 2.1 0.83 mg/kg SW846 6010CBarium 29.1 4.1 mg/kg SW846 6010CChromium 12.2 0.83 mg/kg SW846 6010CLead 2.5 0.83 mg/kg SW846 6010CIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 7.0 su SW846 9045D

MC48470-9A B-2/4-6

No hits reported in this sample.

MC48470-10 B-5/0-2

Arsenic 2.1 0.86 mg/kg SW846 6010CBarium 36.5 4.3 mg/kg SW846 6010CChromium 13.5 0.86 mg/kg SW846 6010CLead 8.6 0.86 mg/kg SW846 6010CIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 7.1 su SW846 9045D

MC48470-10A B-5/0-2

Lead 0.015 0.010 mg/l SW846 6010C

MC48470-11 B-5/5-7

Arsenic 2.0 0.88 mg/kg SW846 6010CBarium 33.3 4.4 mg/kg SW846 6010CChromium 11.4 0.88 mg/kg SW846 6010CLead 2.3 0.88 mg/kg SW846 6010CIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 5.7 su SW846 9045D

MC48470-11A B-5/5-7

No hits reported in this sample.

15 of 397

MC48470

3

Page 48: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Summary of Hits Page 5 of 7 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

Lab Sample ID Client Sample ID Result/Analyte Qual RL MDL Units Method

MC48470-12 DUP

Arsenic 1.9 0.85 mg/kg SW846 6010CBarium 35.6 4.3 mg/kg SW846 6010CChromium 11.5 0.85 mg/kg SW846 6010CLead 2.6 0.85 mg/kg SW846 6010CIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 5.8 su SW846 9045D

MC48470-12A DUP

No hits reported in this sample.

MC48470-13 B-1/0-2

Acenaphthene 119 110 ug/kg SW846 8270DAcenaphthylene 1530 110 ug/kg SW846 8270DAnthracene 838 110 ug/kg SW846 8270DBenzo(a)anthracene 3460 110 ug/kg SW846 8270DBenzo(a)pyrene 3850 280 ug/kg SW846 8270DBenzo(b)fluoranthene 3970 110 ug/kg SW846 8270DBenzo(g,h,i)perylene 2380 110 ug/kg SW846 8270DBenzo(k)fluoranthene 3260 110 ug/kg SW846 8270DCarbazole 573 110 ug/kg SW846 8270DChrysene 5390 110 ug/kg SW846 8270DDibenzo(a,h)anthracene 660 110 ug/kg SW846 8270DDibenzofuran 129 110 ug/kg SW846 8270DFluoranthene 10500 570 ug/kg SW846 8270DFluorene 316 110 ug/kg SW846 8270DIndeno(1,2,3-cd)pyrene 2300 280 ug/kg SW846 8270D2-Methylnaphthalene 137 110 ug/kg SW846 8270DNaphthalene 170 110 ug/kg SW846 8270DPhenanthrene 7470 110 ug/kg SW846 8270DPyrene 10600 570 ug/kg SW846 8270DCT-ETPH (C9-C36) 338 19 mg/kg CT-ETPH 7/064,4'-DDT 30.8 5.7 ug/kg SW846 8081BAroclor 1260 51.0 29 ug/kg SW846 8082AArsenic 3.7 0.95 mg/kg SW846 6010CBarium 38.8 4.7 mg/kg SW846 6010CChromium 24.5 0.95 mg/kg SW846 6010CLead 70.4 0.95 mg/kg SW846 6010CMercury 0.13 0.036 mg/kg SW846 7471BIgnitability (Flashpoint) >230 Deg. F SW846 1020pH 6.8 su SW846 9045D

16 of 397

MC48470

3

Page 49: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Summary of Hits Page 6 of 7 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

Lab Sample ID Client Sample ID Result/Analyte Qual RL MDL Units Method

MC48470-13A B-1/0-2

Lead 0.024 0.010 mg/l SW846 6010C

MC48470-14 TRIP BLANK

No hits reported in this sample.

MC48470-15 MW/B-4

Benzo(a)anthracene 0.13 0.051 ug/l SW846 8270D BY SIMBenzo(a)pyrene 0.17 0.10 ug/l SW846 8270D BY SIMBenzo(b)fluoranthene 0.27 0.051 ug/l SW846 8270D BY SIMBenzo(g,h,i)perylene 0.12 0.10 ug/l SW846 8270D BY SIMChrysene 0.26 0.10 ug/l SW846 8270D BY SIMDibenzo(a,h)anthracene 0.13 0.10 ug/l SW846 8270D BY SIMFluoranthene 0.77 0.10 ug/l SW846 8270D BY SIMIndeno(1,2,3-cd)pyrene 0.23 0.10 ug/l SW846 8270D BY SIMPhenanthrene 0.81 0.051 ug/l SW846 8270D BY SIMPyrene 0.62 0.10 ug/l SW846 8270D BY SIM

MC48470-15F MW/B-4

No hits reported in this sample.

MC48470-16 MW/B-3

Benzo(b)fluoranthene 0.072 0.051 ug/l SW846 8270D BY SIMDibenzo(a,h)anthracene 0.13 0.10 ug/l SW846 8270D BY SIMIndeno(1,2,3-cd)pyrene 0.13 0.10 ug/l SW846 8270D BY SIMPhenanthrene 0.086 0.051 ug/l SW846 8270D BY SIMArsenic 4.0 4.0 ug/l SW846 6010CBarium 103 50 ug/l SW846 6010CChromium 13.9 10 ug/l SW846 6010CLead 5.5 5.0 ug/l SW846 6010C

MC48470-16F MW/B-3

No hits reported in this sample.

MC48470-17 DUP

Benzo(b)fluoranthene 0.061 0.050 ug/l SW846 8270D BY SIMDibenzo(a,h)anthracene 0.11 0.10 ug/l SW846 8270D BY SIMIndeno(1,2,3-cd)pyrene 0.12 0.10 ug/l SW846 8270D BY SIM

17 of 397

MC48470

3

Page 50: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Summary of Hits Page 7 of 7 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

Lab Sample ID Client Sample ID Result/Analyte Qual RL MDL Units Method

Phenanthrene 0.078 0.050 ug/l SW846 8270D BY SIM

MC48470-17F DUP

No hits reported in this sample.

MC48470-19 FIELD BLANK

Dibenzo(a,h)anthracene 0.11 0.11 ug/l SW846 8270D BY SIMIndeno(1,2,3-cd)pyrene 0.11 0.11 ug/l SW846 8270D BY SIM

MC48470-19F FIELD BLANK

No hits reported in this sample.

(a) Continuing Calibration and Laboratory Control Sample outside of acceptance criteria. Result may be biasedhigh.

18 of 397

MC48470

3

Page 51: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Sample Results

Report of Analysis

New EnglandSection 4

19 of 397

MC48470

4

Page 52: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81616.D 1 11/01/16 KP n/a n/a MSM2926Run #2

Initial Weight Final VolumeRun #1 5.25 g 5.0 mlRun #2

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 11 ug/kg107-13-1 Acrylonitrile ND 27 ug/kg71-43-2 Benzene ND 1.1 ug/kg108-86-1 Bromobenzene ND 5.4 ug/kg75-27-4 Bromodichloromethane ND 2.2 ug/kg75-25-2 Bromoform ND 2.2 ug/kg74-83-9 Bromomethane ND 11 ug/kg78-93-3 2-Butanone (MEK) ND 11 ug/kg104-51-8 n-Butylbenzene ND 5.4 ug/kg135-98-8 sec-Butylbenzene ND 5.4 ug/kg98-06-6 tert-Butylbenzene ND 5.4 ug/kg75-15-0 Carbon disulfide ND 5.4 ug/kg56-23-5 Carbon tetrachloride ND 2.2 ug/kg108-90-7 Chlorobenzene ND 2.2 ug/kg75-00-3 Chloroethane ND 11 ug/kg67-66-3 Chloroform ND 2.2 ug/kg74-87-3 Chloromethane ND 5.4 ug/kg95-49-8 o-Chlorotoluene ND 5.4 ug/kg106-43-4 p-Chlorotoluene ND 5.4 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 5.4 ug/kg124-48-1 Dibromochloromethane ND 5.4 ug/kg106-93-4 1,2-Dibromoethane ND 2.2 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.2 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.2 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.2 ug/kg75-71-8 Dichlorodifluoromethane ND 5.4 ug/kg75-34-3 1,1-Dichloroethane ND 2.2 ug/kg107-06-2 1,2-Dichloroethane ND 2.2 ug/kg75-35-4 1,1-Dichloroethene ND 2.2 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.2 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.2 ug/kg78-87-5 1,2-Dichloropropane ND 2.2 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

20 of 397

MC48470

44.1

Page 53: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 5.4 ug/kg594-20-7 2,2-Dichloropropane ND 5.4 ug/kg563-58-6 1,1-Dichloropropene ND 5.4 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.2 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 2.2 ug/kg100-41-4 Ethylbenzene ND 2.2 ug/kg76-13-1 Freon 113 ND 5.4 ug/kg87-68-3 Hexachlorobutadiene ND 5.4 ug/kg591-78-6 2-Hexanone ND 5.4 ug/kg98-82-8 Isopropylbenzene ND 5.4 ug/kg99-87-6 p-Isopropyltoluene ND 5.4 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.2 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.4 ug/kg74-95-3 Methylene bromide ND 5.4 ug/kg75-09-2 Methylene chloride ND 2.2 ug/kg91-20-3 Naphthalene ND 5.4 ug/kg103-65-1 n-Propylbenzene ND 5.4 ug/kg100-42-5 Styrene ND 5.4 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.2 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 5.4 ug/kg127-18-4 Tetrachloroethene ND 2.2 ug/kg109-99-9 Tetrahydrofuran ND 11 ug/kg108-88-3 Toluene ND 5.4 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 11 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 5.4 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 5.4 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.2 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.2 ug/kg79-01-6 Trichloroethene ND 2.2 ug/kg75-69-4 Trichlorofluoromethane ND 2.2 ug/kg96-18-4 1,2,3-Trichloropropane ND 5.4 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 5.4 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 5.4 ug/kg75-01-4 Vinyl chloride ND 11 ug/kg

m,p-Xylene ND 2.2 ug/kg95-47-6 o-Xylene ND 2.2 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 149% a 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

21 of 397

MC48470

44.1

Page 54: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 106% 65-129%460-00-4 4-Bromofluorobenzene 113% 63-137%

(a) Outside control limits. Associated target analytes are non-detect.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

22 of 397

MC48470

44.1

Page 55: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30636.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.1 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 280 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 560 ug/kg120-83-2 2,4-Dichlorophenol ND 560 ug/kg105-67-9 2,4-Dimethylphenol ND 560 ug/kg51-28-5 2,4-Dinitrophenol ND 560 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 560 ug/kg95-48-7 2-Methylphenol ND 560 ug/kg106-44-5 4-Methylphenol ND 560 ug/kg88-75-5 2-Nitrophenol ND 560 ug/kg100-02-7 4-Nitrophenol ND 560 ug/kg87-86-5 Pentachlorophenol a ND 560 ug/kg108-95-2 Phenol ND 280 ug/kg95-95-4 2,4,5-Trichlorophenol ND 560 ug/kg88-06-2 2,4,6-Trichlorophenol ND 560 ug/kg83-32-9 Acenaphthene ND 110 ug/kg208-96-8 Acenaphthylene 896 110 ug/kg62-53-3 Aniline ND 560 ug/kg120-12-7 Anthracene 419 110 ug/kg56-55-3 Benzo(a)anthracene 1650 110 ug/kg50-32-8 Benzo(a)pyrene 2090 280 ug/kg205-99-2 Benzo(b)fluoranthene 2350 110 ug/kg191-24-2 Benzo(g,h,i)perylene 1430 110 ug/kg207-08-9 Benzo(k)fluoranthene 2230 110 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 280 ug/kg85-68-7 Butyl benzyl phthalate ND 280 ug/kg91-58-7 2-Chloronaphthalene ND 280 ug/kg106-47-8 4-Chloroaniline ND 560 ug/kg86-74-8 Carbazole 461 110 ug/kg218-01-9 Chrysene 2970 110 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 280 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 280 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 280 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

23 of 397

MC48470

44.1

Page 56: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 280 ug/kg121-14-2 2,4-Dinitrotoluene ND 560 ug/kg606-20-2 2,6-Dinitrotoluene ND 560 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 560 ug/kg53-70-3 Dibenzo(a,h)anthracene 348 110 ug/kg132-64-9 Dibenzofuran ND 110 ug/kg84-74-2 Di-n-butyl phthalate ND 280 ug/kg117-84-0 Di-n-octyl phthalate ND 280 ug/kg84-66-2 Diethyl phthalate ND 280 ug/kg131-11-3 Dimethyl phthalate ND 280 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 280 ug/kg206-44-0 Fluoranthene 6440 110 ug/kg86-73-7 Fluorene 203 110 ug/kg118-74-1 Hexachlorobenzene ND 280 ug/kg87-68-3 Hexachlorobutadiene ND 280 ug/kg77-47-4 Hexachlorocyclopentadiene ND 560 ug/kg67-72-1 Hexachloroethane ND 280 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene 1450 280 ug/kg78-59-1 Isophorone ND 280 ug/kg91-57-6 2-Methylnaphthalene ND 110 ug/kg88-74-4 2-Nitroaniline ND 560 ug/kg99-09-2 3-Nitroaniline ND 560 ug/kg100-01-6 4-Nitroaniline ND 560 ug/kg91-20-3 Naphthalene ND 110 ug/kg98-95-3 Nitrobenzene ND 280 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 280 ug/kg86-30-6 N-Nitrosodiphenylamine ND 280 ug/kg82-68-8 Pentachloronitrobenzene ND 560 ug/kg85-01-8 Phenanthrene 4560 110 ug/kg129-00-0 Pyrene 5790 110 ug/kg110-86-1 Pyridine ND 560 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 560 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 280 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 85% 25-109%4165-62-2 Phenol-d5 89% 29-113%118-79-6 2,4,6-Tribromophenol 108% 20-141%4165-60-0 Nitrobenzene-d5 85% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

24 of 397

MC48470

44.1

Page 57: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 96% 34-118%1718-51-0 Terphenyl-d14 109% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

25 of 397

MC48470

44.1

Page 58: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53129.D 1 11/02/16 TA 10/28/16 OP49036 GBE2670Run #2

Initial Weight Final VolumeRun #1 20.2 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 56 ug/kg309-00-2 Aldrin ND 5.6 ug/kg319-84-6 alpha-BHC ND 5.6 ug/kg319-85-7 beta-BHC ND 5.6 ug/kg319-86-8 delta-BHC ND 5.6 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.6 ug/kg12789-03-6 Chlordane ND 56 ug/kg60-57-1 Dieldrin ND 5.6 ug/kg72-54-8 4,4'-DDD ND 5.6 ug/kg72-55-9 4,4'-DDE ND 5.6 ug/kg50-29-3 4,4'-DDT 11.4 5.6 ug/kg72-20-8 Endrin ND 5.6 ug/kg1031-07-8 Endosulfan sulfate ND 5.6 ug/kg7421-93-4 Endrin aldehyde ND 5.6 ug/kg959-98-8 Endosulfan-I ND 5.6 ug/kg33213-65-9 Endosulfan-II ND 5.6 ug/kg76-44-8 Heptachlor ND 5.6 ug/kg1024-57-3 Heptachlor epoxide ND 5.6 ug/kg72-43-5 Methoxychlor ND 5.6 ug/kg53494-70-5 Endrin ketone ND 5.6 ug/kg8001-35-2 Toxaphene ND 56 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 57% 10-143%877-09-8 Tetrachloro-m-xylene 61% 10-143%2051-24-3 Decachlorobiphenyl 68% 10-172%2051-24-3 Decachlorobiphenyl 127% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

26 of 397

MC48470

44.1

Page 59: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70188.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.2 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 28 ug/kg11104-28-2 Aroclor 1221 ND 28 ug/kg11141-16-5 Aroclor 1232 ND 28 ug/kg53469-21-9 Aroclor 1242 ND 28 ug/kg12672-29-6 Aroclor 1248 ND 28 ug/kg11097-69-1 Aroclor 1254 ND 28 ug/kg11096-82-5 Aroclor 1260 ND 28 ug/kg37324-23-5 Aroclor 1262 ND 28 ug/kg11100-14-4 Aroclor 1268 ND 28 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 76% 25-145%877-09-8 Tetrachloro-m-xylene 71% 25-145%2051-24-3 Decachlorobiphenyl 130% 25-179%2051-24-3 Decachlorobiphenyl 113% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

27 of 397

MC48470

44.1

Page 60: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5232.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.9 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) 273 18 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 65% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

28 of 397

MC48470

44.1

Page 61: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 3.1 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Barium 45.0 4.4 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Cadmium <0.35 0.35 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Chromium 15.4 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Lead 71.1 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Mercury 0.038 0.035 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 2 SW846 7471B 4

Selenium <0.88 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Silver <0.44 0.44 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

(1) Instrument QC Batch: MA19577(2) Instrument QC Batch: MA19578(3) Prep QC Batch: MP26949(4) Prep QC Batch: MP26959

RL = Reporting Limit

29 of 397

MC48470

44.1

Page 62: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.7 1.7 mg/kg 1 10/27/16 21:37 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 88.5 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <56 56 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 8.0 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

30 of 397

MC48470

44.1

Page 63: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/0-2 Lab Sample ID: MC48470-1A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 88.5 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead 0.070 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

31 of 397

MC48470

44.2

Page 64: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81600.D 1 10/31/16 KP n/a n/a MSM2925Run #2

Initial Weight Final VolumeRun #1 6.10 g 5.0 mlRun #2

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 9.2 ug/kg107-13-1 Acrylonitrile ND 23 ug/kg71-43-2 Benzene ND 0.92 ug/kg108-86-1 Bromobenzene ND 4.6 ug/kg75-27-4 Bromodichloromethane ND 1.8 ug/kg75-25-2 Bromoform ND 1.8 ug/kg74-83-9 Bromomethane ND 9.2 ug/kg78-93-3 2-Butanone (MEK) ND 9.2 ug/kg104-51-8 n-Butylbenzene ND 4.6 ug/kg135-98-8 sec-Butylbenzene ND 4.6 ug/kg98-06-6 tert-Butylbenzene ND 4.6 ug/kg75-15-0 Carbon disulfide ND 4.6 ug/kg56-23-5 Carbon tetrachloride ND 1.8 ug/kg108-90-7 Chlorobenzene ND 1.8 ug/kg75-00-3 Chloroethane ND 9.2 ug/kg67-66-3 Chloroform ND 1.8 ug/kg74-87-3 Chloromethane ND 4.6 ug/kg95-49-8 o-Chlorotoluene ND 4.6 ug/kg106-43-4 p-Chlorotoluene ND 4.6 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 4.6 ug/kg124-48-1 Dibromochloromethane ND 4.6 ug/kg106-93-4 1,2-Dibromoethane ND 1.8 ug/kg95-50-1 1,2-Dichlorobenzene ND 1.8 ug/kg541-73-1 1,3-Dichlorobenzene ND 1.8 ug/kg106-46-7 1,4-Dichlorobenzene ND 1.8 ug/kg75-71-8 Dichlorodifluoromethane ND 4.6 ug/kg75-34-3 1,1-Dichloroethane ND 1.8 ug/kg107-06-2 1,2-Dichloroethane ND 1.8 ug/kg75-35-4 1,1-Dichloroethene ND 1.8 ug/kg156-59-2 cis-1,2-Dichloroethene ND 1.8 ug/kg156-60-5 trans-1,2-Dichloroethene ND 1.8 ug/kg78-87-5 1,2-Dichloropropane ND 1.8 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

32 of 397

MC48470

44.3

Page 65: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 4.6 ug/kg594-20-7 2,2-Dichloropropane ND 4.6 ug/kg563-58-6 1,1-Dichloropropene ND 4.6 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 1.8 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 1.8 ug/kg100-41-4 Ethylbenzene ND 1.8 ug/kg76-13-1 Freon 113 ND 4.6 ug/kg87-68-3 Hexachlorobutadiene ND 4.6 ug/kg591-78-6 2-Hexanone ND 4.6 ug/kg98-82-8 Isopropylbenzene ND 4.6 ug/kg99-87-6 p-Isopropyltoluene ND 4.6 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 1.8 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 4.6 ug/kg74-95-3 Methylene bromide ND 4.6 ug/kg75-09-2 Methylene chloride ND 1.8 ug/kg91-20-3 Naphthalene ND 4.6 ug/kg103-65-1 n-Propylbenzene ND 4.6 ug/kg100-42-5 Styrene ND 4.6 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 1.8 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 4.6 ug/kg127-18-4 Tetrachloroethene ND 1.8 ug/kg109-99-9 Tetrahydrofuran ND 9.2 ug/kg108-88-3 Toluene ND 4.6 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 9.2 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 4.6 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 4.6 ug/kg71-55-6 1,1,1-Trichloroethane ND 1.8 ug/kg79-00-5 1,1,2-Trichloroethane ND 1.8 ug/kg79-01-6 Trichloroethene ND 1.8 ug/kg75-69-4 Trichlorofluoromethane ND 1.8 ug/kg96-18-4 1,2,3-Trichloropropane ND 4.6 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 4.6 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 4.6 ug/kg75-01-4 Vinyl chloride ND 9.2 ug/kg

m,p-Xylene ND 1.8 ug/kg95-47-6 o-Xylene ND 1.8 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 117% 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

33 of 397

MC48470

44.3

Page 66: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 103% 65-129%460-00-4 4-Bromofluorobenzene 99% 63-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

34 of 397

MC48470

44.3

Page 67: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30637.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.1 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 280 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 560 ug/kg120-83-2 2,4-Dichlorophenol ND 560 ug/kg105-67-9 2,4-Dimethylphenol ND 560 ug/kg51-28-5 2,4-Dinitrophenol ND 560 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 560 ug/kg95-48-7 2-Methylphenol ND 560 ug/kg106-44-5 4-Methylphenol ND 560 ug/kg88-75-5 2-Nitrophenol ND 560 ug/kg100-02-7 4-Nitrophenol ND 560 ug/kg87-86-5 Pentachlorophenol a ND 560 ug/kg108-95-2 Phenol ND 280 ug/kg95-95-4 2,4,5-Trichlorophenol ND 560 ug/kg88-06-2 2,4,6-Trichlorophenol ND 560 ug/kg83-32-9 Acenaphthene ND 110 ug/kg208-96-8 Acenaphthylene ND 110 ug/kg62-53-3 Aniline ND 560 ug/kg120-12-7 Anthracene ND 110 ug/kg56-55-3 Benzo(a)anthracene ND 110 ug/kg50-32-8 Benzo(a)pyrene ND 280 ug/kg205-99-2 Benzo(b)fluoranthene ND 110 ug/kg191-24-2 Benzo(g,h,i)perylene ND 110 ug/kg207-08-9 Benzo(k)fluoranthene ND 110 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 280 ug/kg85-68-7 Butyl benzyl phthalate ND 280 ug/kg91-58-7 2-Chloronaphthalene ND 280 ug/kg106-47-8 4-Chloroaniline ND 560 ug/kg86-74-8 Carbazole ND 110 ug/kg218-01-9 Chrysene ND 110 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 280 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 280 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 280 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

35 of 397

MC48470

44.3

Page 68: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 280 ug/kg121-14-2 2,4-Dinitrotoluene ND 560 ug/kg606-20-2 2,6-Dinitrotoluene ND 560 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 560 ug/kg53-70-3 Dibenzo(a,h)anthracene ND 110 ug/kg132-64-9 Dibenzofuran ND 110 ug/kg84-74-2 Di-n-butyl phthalate ND 280 ug/kg117-84-0 Di-n-octyl phthalate ND 280 ug/kg84-66-2 Diethyl phthalate ND 280 ug/kg131-11-3 Dimethyl phthalate ND 280 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 280 ug/kg206-44-0 Fluoranthene ND 110 ug/kg86-73-7 Fluorene ND 110 ug/kg118-74-1 Hexachlorobenzene ND 280 ug/kg87-68-3 Hexachlorobutadiene ND 280 ug/kg77-47-4 Hexachlorocyclopentadiene ND 560 ug/kg67-72-1 Hexachloroethane ND 280 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene ND 280 ug/kg78-59-1 Isophorone ND 280 ug/kg91-57-6 2-Methylnaphthalene ND 110 ug/kg88-74-4 2-Nitroaniline ND 560 ug/kg99-09-2 3-Nitroaniline ND 560 ug/kg100-01-6 4-Nitroaniline ND 560 ug/kg91-20-3 Naphthalene ND 110 ug/kg98-95-3 Nitrobenzene ND 280 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 280 ug/kg86-30-6 N-Nitrosodiphenylamine ND 280 ug/kg82-68-8 Pentachloronitrobenzene ND 560 ug/kg85-01-8 Phenanthrene ND 110 ug/kg129-00-0 Pyrene ND 110 ug/kg110-86-1 Pyridine ND 560 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 560 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 280 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 81% 25-109%4165-62-2 Phenol-d5 83% 29-113%118-79-6 2,4,6-Tribromophenol 105% 20-141%4165-60-0 Nitrobenzene-d5 79% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

36 of 397

MC48470

44.3

Page 69: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 88% 34-118%1718-51-0 Terphenyl-d14 109% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

37 of 397

MC48470

44.3

Page 70: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53091.D 1 11/02/16 TA 10/28/16 OP49036 GBE2668Run #2

Initial Weight Final VolumeRun #1 20.0 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 56 ug/kg309-00-2 Aldrin ND 5.6 ug/kg319-84-6 alpha-BHC ND 5.6 ug/kg319-85-7 beta-BHC ND 5.6 ug/kg319-86-8 delta-BHC ND 5.6 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.6 ug/kg12789-03-6 Chlordane ND 56 ug/kg60-57-1 Dieldrin ND 5.6 ug/kg72-54-8 4,4'-DDD ND 5.6 ug/kg72-55-9 4,4'-DDE ND 5.6 ug/kg50-29-3 4,4'-DDT ND 5.6 ug/kg72-20-8 Endrin ND 5.6 ug/kg1031-07-8 Endosulfan sulfate ND 5.6 ug/kg7421-93-4 Endrin aldehyde ND 5.6 ug/kg959-98-8 Endosulfan-I ND 5.6 ug/kg33213-65-9 Endosulfan-II ND 5.6 ug/kg76-44-8 Heptachlor ND 5.6 ug/kg1024-57-3 Heptachlor epoxide ND 5.6 ug/kg72-43-5 Methoxychlor ND 5.6 ug/kg53494-70-5 Endrin ketone ND 5.6 ug/kg8001-35-2 Toxaphene ND 56 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 77% 10-143%877-09-8 Tetrachloro-m-xylene 75% 10-143%2051-24-3 Decachlorobiphenyl 72% 10-172%2051-24-3 Decachlorobiphenyl 74% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

38 of 397

MC48470

44.3

Page 71: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70189.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.0 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 28 ug/kg11104-28-2 Aroclor 1221 ND 28 ug/kg11141-16-5 Aroclor 1232 ND 28 ug/kg53469-21-9 Aroclor 1242 ND 28 ug/kg12672-29-6 Aroclor 1248 ND 28 ug/kg11097-69-1 Aroclor 1254 ND 28 ug/kg11096-82-5 Aroclor 1260 ND 28 ug/kg37324-23-5 Aroclor 1262 ND 28 ug/kg11100-14-4 Aroclor 1268 ND 28 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 81% 25-145%877-09-8 Tetrachloro-m-xylene 80% 25-145%2051-24-3 Decachlorobiphenyl 99% 25-179%2051-24-3 Decachlorobiphenyl 97% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

39 of 397

MC48470

44.3

Page 72: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5220.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.3 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 18 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 71% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

40 of 397

MC48470

44.3

Page 73: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 1.5 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Barium 25.6 4.4 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Cadmium <0.35 0.35 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Chromium 5.1 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Lead 1.6 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Mercury <0.033 0.033 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 2 SW846 7471B 4

Selenium <0.88 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Silver <0.44 0.44 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

(1) Instrument QC Batch: MA19577(2) Instrument QC Batch: MA19578(3) Prep QC Batch: MP26949(4) Prep QC Batch: MP26959

RL = Reporting Limit

41 of 397

MC48470

44.3

Page 74: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.7 1.7 mg/kg 1 10/27/16 21:37 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 89.1 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <55 55 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 6.9 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

42 of 397

MC48470

44.3

Page 75: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-4/4-6 Lab Sample ID: MC48470-2A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 89.1 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <0.010 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

43 of 397

MC48470

44.4

Page 76: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81601.D 1 10/31/16 KP n/a n/a MSM2925Run #2

Initial Weight Final VolumeRun #1 5.58 g 5.0 mlRun #2

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 9.9 ug/kg107-13-1 Acrylonitrile ND 25 ug/kg71-43-2 Benzene ND 0.99 ug/kg108-86-1 Bromobenzene ND 4.9 ug/kg75-27-4 Bromodichloromethane ND 2.0 ug/kg75-25-2 Bromoform ND 2.0 ug/kg74-83-9 Bromomethane ND 9.9 ug/kg78-93-3 2-Butanone (MEK) ND 9.9 ug/kg104-51-8 n-Butylbenzene ND 4.9 ug/kg135-98-8 sec-Butylbenzene ND 4.9 ug/kg98-06-6 tert-Butylbenzene ND 4.9 ug/kg75-15-0 Carbon disulfide ND 4.9 ug/kg56-23-5 Carbon tetrachloride ND 2.0 ug/kg108-90-7 Chlorobenzene ND 2.0 ug/kg75-00-3 Chloroethane ND 9.9 ug/kg67-66-3 Chloroform ND 2.0 ug/kg74-87-3 Chloromethane ND 4.9 ug/kg95-49-8 o-Chlorotoluene ND 4.9 ug/kg106-43-4 p-Chlorotoluene ND 4.9 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 4.9 ug/kg124-48-1 Dibromochloromethane ND 4.9 ug/kg106-93-4 1,2-Dibromoethane ND 2.0 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.0 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.0 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.0 ug/kg75-71-8 Dichlorodifluoromethane ND 4.9 ug/kg75-34-3 1,1-Dichloroethane ND 2.0 ug/kg107-06-2 1,2-Dichloroethane ND 2.0 ug/kg75-35-4 1,1-Dichloroethene ND 2.0 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.0 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.0 ug/kg78-87-5 1,2-Dichloropropane ND 2.0 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

44 of 397

MC48470

44.5

Page 77: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 4.9 ug/kg594-20-7 2,2-Dichloropropane ND 4.9 ug/kg563-58-6 1,1-Dichloropropene ND 4.9 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.0 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 2.0 ug/kg100-41-4 Ethylbenzene ND 2.0 ug/kg76-13-1 Freon 113 ND 4.9 ug/kg87-68-3 Hexachlorobutadiene ND 4.9 ug/kg591-78-6 2-Hexanone ND 4.9 ug/kg98-82-8 Isopropylbenzene ND 4.9 ug/kg99-87-6 p-Isopropyltoluene ND 4.9 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.0 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 4.9 ug/kg74-95-3 Methylene bromide ND 4.9 ug/kg75-09-2 Methylene chloride ND 2.0 ug/kg91-20-3 Naphthalene ND 4.9 ug/kg103-65-1 n-Propylbenzene ND 4.9 ug/kg100-42-5 Styrene ND 4.9 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.0 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 4.9 ug/kg127-18-4 Tetrachloroethene ND 2.0 ug/kg109-99-9 Tetrahydrofuran ND 9.9 ug/kg108-88-3 Toluene ND 4.9 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 9.9 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 4.9 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 4.9 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.0 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.0 ug/kg79-01-6 Trichloroethene ND 2.0 ug/kg75-69-4 Trichlorofluoromethane ND 2.0 ug/kg96-18-4 1,2,3-Trichloropropane ND 4.9 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 4.9 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 4.9 ug/kg75-01-4 Vinyl chloride ND 9.9 ug/kg

m,p-Xylene ND 2.0 ug/kg95-47-6 o-Xylene ND 2.0 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 122% 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

45 of 397

MC48470

44.5

Page 78: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 104% 65-129%460-00-4 4-Bromofluorobenzene 96% 63-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

46 of 397

MC48470

44.5

Page 79: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30638.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.5 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 270 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 540 ug/kg120-83-2 2,4-Dichlorophenol ND 540 ug/kg105-67-9 2,4-Dimethylphenol ND 540 ug/kg51-28-5 2,4-Dinitrophenol ND 540 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 540 ug/kg95-48-7 2-Methylphenol ND 540 ug/kg106-44-5 4-Methylphenol ND 540 ug/kg88-75-5 2-Nitrophenol ND 540 ug/kg100-02-7 4-Nitrophenol ND 540 ug/kg87-86-5 Pentachlorophenol a ND 540 ug/kg108-95-2 Phenol ND 270 ug/kg95-95-4 2,4,5-Trichlorophenol ND 540 ug/kg88-06-2 2,4,6-Trichlorophenol ND 540 ug/kg83-32-9 Acenaphthene ND 110 ug/kg208-96-8 Acenaphthylene ND 110 ug/kg62-53-3 Aniline ND 540 ug/kg120-12-7 Anthracene ND 110 ug/kg56-55-3 Benzo(a)anthracene ND 110 ug/kg50-32-8 Benzo(a)pyrene ND 270 ug/kg205-99-2 Benzo(b)fluoranthene ND 110 ug/kg191-24-2 Benzo(g,h,i)perylene ND 110 ug/kg207-08-9 Benzo(k)fluoranthene ND 110 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 270 ug/kg85-68-7 Butyl benzyl phthalate ND 270 ug/kg91-58-7 2-Chloronaphthalene ND 270 ug/kg106-47-8 4-Chloroaniline ND 540 ug/kg86-74-8 Carbazole ND 110 ug/kg218-01-9 Chrysene ND 110 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 270 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 270 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 270 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

47 of 397

MC48470

44.5

Page 80: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 270 ug/kg121-14-2 2,4-Dinitrotoluene ND 540 ug/kg606-20-2 2,6-Dinitrotoluene ND 540 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 540 ug/kg53-70-3 Dibenzo(a,h)anthracene ND 110 ug/kg132-64-9 Dibenzofuran ND 110 ug/kg84-74-2 Di-n-butyl phthalate ND 270 ug/kg117-84-0 Di-n-octyl phthalate ND 270 ug/kg84-66-2 Diethyl phthalate ND 270 ug/kg131-11-3 Dimethyl phthalate ND 270 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 270 ug/kg206-44-0 Fluoranthene ND 110 ug/kg86-73-7 Fluorene ND 110 ug/kg118-74-1 Hexachlorobenzene ND 270 ug/kg87-68-3 Hexachlorobutadiene ND 270 ug/kg77-47-4 Hexachlorocyclopentadiene ND 540 ug/kg67-72-1 Hexachloroethane ND 270 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene ND 270 ug/kg78-59-1 Isophorone ND 270 ug/kg91-57-6 2-Methylnaphthalene ND 110 ug/kg88-74-4 2-Nitroaniline ND 540 ug/kg99-09-2 3-Nitroaniline ND 540 ug/kg100-01-6 4-Nitroaniline ND 540 ug/kg91-20-3 Naphthalene ND 110 ug/kg98-95-3 Nitrobenzene ND 270 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 270 ug/kg86-30-6 N-Nitrosodiphenylamine ND 270 ug/kg82-68-8 Pentachloronitrobenzene ND 540 ug/kg85-01-8 Phenanthrene ND 110 ug/kg129-00-0 Pyrene ND 110 ug/kg110-86-1 Pyridine ND 540 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 540 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 270 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 86% 25-109%4165-62-2 Phenol-d5 88% 29-113%118-79-6 2,4,6-Tribromophenol 104% 20-141%4165-60-0 Nitrobenzene-d5 85% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

48 of 397

MC48470

44.5

Page 81: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 93% 34-118%1718-51-0 Terphenyl-d14 104% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

49 of 397

MC48470

44.5

Page 82: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53090.D 1 11/02/16 TA 10/28/16 OP49036 GBE2668Run #2

Initial Weight Final VolumeRun #1 20.6 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 53 ug/kg309-00-2 Aldrin ND 5.3 ug/kg319-84-6 alpha-BHC ND 5.3 ug/kg319-85-7 beta-BHC ND 5.3 ug/kg319-86-8 delta-BHC ND 5.3 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.3 ug/kg12789-03-6 Chlordane ND 53 ug/kg60-57-1 Dieldrin ND 5.3 ug/kg72-54-8 4,4'-DDD ND 5.3 ug/kg72-55-9 4,4'-DDE ND 5.3 ug/kg50-29-3 4,4'-DDT ND 5.3 ug/kg72-20-8 Endrin ND 5.3 ug/kg1031-07-8 Endosulfan sulfate ND 5.3 ug/kg7421-93-4 Endrin aldehyde ND 5.3 ug/kg959-98-8 Endosulfan-I ND 5.3 ug/kg33213-65-9 Endosulfan-II ND 5.3 ug/kg76-44-8 Heptachlor ND 5.3 ug/kg1024-57-3 Heptachlor epoxide ND 5.3 ug/kg72-43-5 Methoxychlor ND 5.3 ug/kg53494-70-5 Endrin ketone ND 5.3 ug/kg8001-35-2 Toxaphene ND 53 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 72% 10-143%877-09-8 Tetrachloro-m-xylene 71% 10-143%2051-24-3 Decachlorobiphenyl 55% 10-172%2051-24-3 Decachlorobiphenyl 74% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

50 of 397

MC48470

44.5

Page 83: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70190.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.6 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 27 ug/kg11104-28-2 Aroclor 1221 ND 27 ug/kg11141-16-5 Aroclor 1232 ND 27 ug/kg53469-21-9 Aroclor 1242 ND 27 ug/kg12672-29-6 Aroclor 1248 ND 27 ug/kg11097-69-1 Aroclor 1254 ND 27 ug/kg11096-82-5 Aroclor 1260 ND 27 ug/kg37324-23-5 Aroclor 1262 ND 27 ug/kg11100-14-4 Aroclor 1268 ND 27 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 82% 25-145%877-09-8 Tetrachloro-m-xylene 80% 25-145%2051-24-3 Decachlorobiphenyl 109% 25-179%2051-24-3 Decachlorobiphenyl 107% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

51 of 397

MC48470

44.5

Page 84: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5223.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.4 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 18 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 69% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

52 of 397

MC48470

44.5

Page 85: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 4.6 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Barium 32.5 4.4 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Cadmium <0.35 0.35 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Chromium 9.3 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Lead 10.2 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Mercury <0.034 0.034 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 2 SW846 7471B 4

Selenium <0.88 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Silver <0.44 0.44 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

(1) Instrument QC Batch: MA19577(2) Instrument QC Batch: MA19578(3) Prep QC Batch: MP26949(4) Prep QC Batch: MP26959

RL = Reporting Limit

53 of 397

MC48470

44.5

Page 86: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.6 1.6 mg/kg 1 10/27/16 21:37 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 90.8 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <55 55 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 6.5 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

54 of 397

MC48470

44.5

Page 87: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/0-2 Lab Sample ID: MC48470-3A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 90.8 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead 0.016 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

55 of 397

MC48470

44.6

Page 88: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81641.D 1 11/02/16 KP n/a n/a MSM2927Run #2 a M81617.D 1 11/01/16 KP n/a n/a MSM2926

Initial Weight Final VolumeRun #1 4.97 g 5.0 mlRun #2 4.51 g 5.0 ml

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone b 13.9 13 ug/kg107-13-1 Acrylonitrile ND 31 ug/kg71-43-2 Benzene ND 1.3 ug/kg108-86-1 Bromobenzene ND 6.3 ug/kg75-27-4 Bromodichloromethane ND 2.5 ug/kg75-25-2 Bromoform ND 2.5 ug/kg74-83-9 Bromomethane ND 13 ug/kg78-93-3 2-Butanone (MEK) ND 13 ug/kg104-51-8 n-Butylbenzene ND 6.3 ug/kg135-98-8 sec-Butylbenzene ND 6.3 ug/kg98-06-6 tert-Butylbenzene ND 6.3 ug/kg75-15-0 Carbon disulfide ND 6.3 ug/kg56-23-5 Carbon tetrachloride ND 2.5 ug/kg108-90-7 Chlorobenzene ND 2.5 ug/kg75-00-3 Chloroethane ND 13 ug/kg67-66-3 Chloroform ND 2.5 ug/kg74-87-3 Chloromethane ND 6.3 ug/kg95-49-8 o-Chlorotoluene ND 6.3 ug/kg106-43-4 p-Chlorotoluene ND 6.3 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 6.3 ug/kg124-48-1 Dibromochloromethane ND 6.3 ug/kg106-93-4 1,2-Dibromoethane ND 2.5 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.5 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.5 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.5 ug/kg75-71-8 Dichlorodifluoromethane ND 6.3 ug/kg75-34-3 1,1-Dichloroethane ND 2.5 ug/kg107-06-2 1,2-Dichloroethane ND 2.5 ug/kg75-35-4 1,1-Dichloroethene ND 2.5 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.5 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.5 ug/kg78-87-5 1,2-Dichloropropane ND 2.5 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

56 of 397

MC48470

44.7

Page 89: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 6.3 ug/kg594-20-7 2,2-Dichloropropane ND 6.3 ug/kg563-58-6 1,1-Dichloropropene ND 6.3 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.5 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 2.5 ug/kg100-41-4 Ethylbenzene ND 2.5 ug/kg76-13-1 Freon 113 ND 6.3 ug/kg87-68-3 Hexachlorobutadiene ND 6.3 ug/kg591-78-6 2-Hexanone ND 6.3 ug/kg98-82-8 Isopropylbenzene ND 6.3 ug/kg99-87-6 p-Isopropyltoluene ND 6.3 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.5 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 6.3 ug/kg74-95-3 Methylene bromide ND 6.3 ug/kg75-09-2 Methylene chloride ND 2.5 ug/kg91-20-3 Naphthalene ND 6.3 ug/kg103-65-1 n-Propylbenzene ND 6.3 ug/kg100-42-5 Styrene ND 6.3 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.5 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 6.3 ug/kg127-18-4 Tetrachloroethene ND 2.5 ug/kg109-99-9 Tetrahydrofuran ND 13 ug/kg108-88-3 Toluene ND 6.3 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 13 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 6.3 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 6.3 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.5 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.5 ug/kg79-01-6 Trichloroethene ND 2.5 ug/kg75-69-4 Trichlorofluoromethane ND 2.5 ug/kg96-18-4 1,2,3-Trichloropropane ND 6.3 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 6.3 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 6.3 ug/kg75-01-4 Vinyl chloride ND 13 ug/kg

m,p-Xylene ND 2.5 ug/kg95-47-6 o-Xylene ND 2.5 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 142% c 147% c 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

57 of 397

MC48470

44.7

Page 90: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 108% 110% 65-129%460-00-4 4-Bromofluorobenzene 107% 104% 63-137%

(a) Confirmation run for surrogate recoveries.(b) Continuing Calibration and Laboratory Control Sample outside of acceptance criteria. Result may be biased

high.(c) Outside control limits due to possible matrix interference. Confirmed by reanalysis.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

58 of 397

MC48470

44.7

Page 91: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30639.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.3 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 310 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 610 ug/kg120-83-2 2,4-Dichlorophenol ND 610 ug/kg105-67-9 2,4-Dimethylphenol ND 610 ug/kg51-28-5 2,4-Dinitrophenol ND 610 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 610 ug/kg95-48-7 2-Methylphenol ND 610 ug/kg106-44-5 4-Methylphenol ND 610 ug/kg88-75-5 2-Nitrophenol ND 610 ug/kg100-02-7 4-Nitrophenol ND 610 ug/kg87-86-5 Pentachlorophenol a ND 610 ug/kg108-95-2 Phenol ND 310 ug/kg95-95-4 2,4,5-Trichlorophenol ND 610 ug/kg88-06-2 2,4,6-Trichlorophenol ND 610 ug/kg83-32-9 Acenaphthene ND 120 ug/kg208-96-8 Acenaphthylene ND 120 ug/kg62-53-3 Aniline ND 610 ug/kg120-12-7 Anthracene ND 120 ug/kg56-55-3 Benzo(a)anthracene ND 120 ug/kg50-32-8 Benzo(a)pyrene ND 310 ug/kg205-99-2 Benzo(b)fluoranthene ND 120 ug/kg191-24-2 Benzo(g,h,i)perylene ND 120 ug/kg207-08-9 Benzo(k)fluoranthene ND 120 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 310 ug/kg85-68-7 Butyl benzyl phthalate ND 310 ug/kg91-58-7 2-Chloronaphthalene ND 310 ug/kg106-47-8 4-Chloroaniline ND 610 ug/kg86-74-8 Carbazole ND 120 ug/kg218-01-9 Chrysene ND 120 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 310 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 310 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 310 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

59 of 397

MC48470

44.7

Page 92: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 310 ug/kg121-14-2 2,4-Dinitrotoluene ND 610 ug/kg606-20-2 2,6-Dinitrotoluene ND 610 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 610 ug/kg53-70-3 Dibenzo(a,h)anthracene ND 120 ug/kg132-64-9 Dibenzofuran ND 120 ug/kg84-74-2 Di-n-butyl phthalate ND 310 ug/kg117-84-0 Di-n-octyl phthalate ND 310 ug/kg84-66-2 Diethyl phthalate ND 310 ug/kg131-11-3 Dimethyl phthalate ND 310 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 310 ug/kg206-44-0 Fluoranthene ND 120 ug/kg86-73-7 Fluorene ND 120 ug/kg118-74-1 Hexachlorobenzene ND 310 ug/kg87-68-3 Hexachlorobutadiene ND 310 ug/kg77-47-4 Hexachlorocyclopentadiene ND 610 ug/kg67-72-1 Hexachloroethane ND 310 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene ND 310 ug/kg78-59-1 Isophorone ND 310 ug/kg91-57-6 2-Methylnaphthalene ND 120 ug/kg88-74-4 2-Nitroaniline ND 610 ug/kg99-09-2 3-Nitroaniline ND 610 ug/kg100-01-6 4-Nitroaniline ND 610 ug/kg91-20-3 Naphthalene ND 120 ug/kg98-95-3 Nitrobenzene ND 310 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 310 ug/kg86-30-6 N-Nitrosodiphenylamine ND 310 ug/kg82-68-8 Pentachloronitrobenzene ND 610 ug/kg85-01-8 Phenanthrene ND 120 ug/kg129-00-0 Pyrene ND 120 ug/kg110-86-1 Pyridine ND 610 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 610 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 310 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 73% 25-109%4165-62-2 Phenol-d5 74% 29-113%118-79-6 2,4,6-Tribromophenol 87% 20-141%4165-60-0 Nitrobenzene-d5 73% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

60 of 397

MC48470

44.7

Page 93: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 78% 34-118%1718-51-0 Terphenyl-d14 88% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

61 of 397

MC48470

44.7

Page 94: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53089.D 1 11/02/16 TA 10/28/16 OP49036 GBE2668Run #2

Initial Weight Final VolumeRun #1 20.5 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 61 ug/kg309-00-2 Aldrin ND 6.1 ug/kg319-84-6 alpha-BHC ND 6.1 ug/kg319-85-7 beta-BHC ND 6.1 ug/kg319-86-8 delta-BHC ND 6.1 ug/kg58-89-9 gamma-BHC (Lindane) ND 6.1 ug/kg12789-03-6 Chlordane ND 61 ug/kg60-57-1 Dieldrin ND 6.1 ug/kg72-54-8 4,4'-DDD ND 6.1 ug/kg72-55-9 4,4'-DDE ND 6.1 ug/kg50-29-3 4,4'-DDT ND 6.1 ug/kg72-20-8 Endrin ND 6.1 ug/kg1031-07-8 Endosulfan sulfate ND 6.1 ug/kg7421-93-4 Endrin aldehyde ND 6.1 ug/kg959-98-8 Endosulfan-I ND 6.1 ug/kg33213-65-9 Endosulfan-II ND 6.1 ug/kg76-44-8 Heptachlor ND 6.1 ug/kg1024-57-3 Heptachlor epoxide ND 6.1 ug/kg72-43-5 Methoxychlor ND 6.1 ug/kg53494-70-5 Endrin ketone ND 6.1 ug/kg8001-35-2 Toxaphene ND 61 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 70% 10-143%877-09-8 Tetrachloro-m-xylene 68% 10-143%2051-24-3 Decachlorobiphenyl 62% 10-172%2051-24-3 Decachlorobiphenyl 66% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

62 of 397

MC48470

44.7

Page 95: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70191.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.5 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 30 ug/kg11104-28-2 Aroclor 1221 ND 30 ug/kg11141-16-5 Aroclor 1232 ND 30 ug/kg53469-21-9 Aroclor 1242 ND 30 ug/kg12672-29-6 Aroclor 1248 ND 30 ug/kg11097-69-1 Aroclor 1254 ND 30 ug/kg11096-82-5 Aroclor 1260 ND 30 ug/kg37324-23-5 Aroclor 1262 ND 30 ug/kg11100-14-4 Aroclor 1268 ND 30 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 81% 25-145%877-09-8 Tetrachloro-m-xylene 80% 25-145%2051-24-3 Decachlorobiphenyl 110% 25-179%2051-24-3 Decachlorobiphenyl 109% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

63 of 397

MC48470

44.7

Page 96: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5224.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.1 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 21 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 76% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

64 of 397

MC48470

44.7

Page 97: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 3.2 1.0 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Barium 43.6 5.1 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Cadmium <0.40 0.40 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Chromium 23.9 1.0 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Lead 7.3 1.0 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Mercury <0.037 0.037 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 2 SW846 7471B 4

Selenium <1.0 1.0 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Silver <0.51 0.51 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

(1) Instrument QC Batch: MA19577(2) Instrument QC Batch: MA19578(3) Prep QC Batch: MP26949(4) Prep QC Batch: MP26959

RL = Reporting Limit

65 of 397

MC48470

44.7

Page 98: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.8 1.8 mg/kg 1 10/27/16 21:37 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 80.3 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <61 61 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 5.8 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

66 of 397

MC48470

44.7

Page 99: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-6/8-10 Lab Sample ID: MC48470-4A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 80.3 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <0.010 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

67 of 397

MC48470

44.8

Page 100: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81642.D 1 11/02/16 KP n/a n/a MSM2927Run #2 a M81618.D 1 11/01/16 KP n/a n/a MSM2926

Initial Weight Final VolumeRun #1 6.28 g 5.0 mlRun #2 4.73 g 5.0 ml

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 8.4 ug/kg107-13-1 Acrylonitrile ND 21 ug/kg71-43-2 Benzene ND 0.84 ug/kg108-86-1 Bromobenzene ND 4.2 ug/kg75-27-4 Bromodichloromethane ND 1.7 ug/kg75-25-2 Bromoform ND 1.7 ug/kg74-83-9 Bromomethane ND 8.4 ug/kg78-93-3 2-Butanone (MEK) ND 8.4 ug/kg104-51-8 n-Butylbenzene ND 4.2 ug/kg135-98-8 sec-Butylbenzene ND 4.2 ug/kg98-06-6 tert-Butylbenzene ND 4.2 ug/kg75-15-0 Carbon disulfide ND 4.2 ug/kg56-23-5 Carbon tetrachloride ND 1.7 ug/kg108-90-7 Chlorobenzene ND 1.7 ug/kg75-00-3 Chloroethane ND 8.4 ug/kg67-66-3 Chloroform ND 1.7 ug/kg74-87-3 Chloromethane ND 4.2 ug/kg95-49-8 o-Chlorotoluene ND 4.2 ug/kg106-43-4 p-Chlorotoluene ND 4.2 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 4.2 ug/kg124-48-1 Dibromochloromethane ND 4.2 ug/kg106-93-4 1,2-Dibromoethane ND 1.7 ug/kg95-50-1 1,2-Dichlorobenzene ND 1.7 ug/kg541-73-1 1,3-Dichlorobenzene ND 1.7 ug/kg106-46-7 1,4-Dichlorobenzene ND 1.7 ug/kg75-71-8 Dichlorodifluoromethane ND 4.2 ug/kg75-34-3 1,1-Dichloroethane ND 1.7 ug/kg107-06-2 1,2-Dichloroethane ND 1.7 ug/kg75-35-4 1,1-Dichloroethene ND 1.7 ug/kg156-59-2 cis-1,2-Dichloroethene ND 1.7 ug/kg156-60-5 trans-1,2-Dichloroethene ND 1.7 ug/kg78-87-5 1,2-Dichloropropane ND 1.7 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

68 of 397

MC48470

44.9

Page 101: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 4.2 ug/kg594-20-7 2,2-Dichloropropane ND 4.2 ug/kg563-58-6 1,1-Dichloropropene ND 4.2 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 1.7 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 1.7 ug/kg100-41-4 Ethylbenzene ND 1.7 ug/kg76-13-1 Freon 113 ND 4.2 ug/kg87-68-3 Hexachlorobutadiene ND 4.2 ug/kg591-78-6 2-Hexanone ND 4.2 ug/kg98-82-8 Isopropylbenzene ND 4.2 ug/kg99-87-6 p-Isopropyltoluene ND 4.2 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 1.7 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 4.2 ug/kg74-95-3 Methylene bromide ND 4.2 ug/kg75-09-2 Methylene chloride ND 1.7 ug/kg91-20-3 Naphthalene ND 4.2 ug/kg103-65-1 n-Propylbenzene ND 4.2 ug/kg100-42-5 Styrene ND 4.2 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 1.7 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 4.2 ug/kg127-18-4 Tetrachloroethene ND 1.7 ug/kg109-99-9 Tetrahydrofuran ND 8.4 ug/kg108-88-3 Toluene ND 4.2 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 8.4 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 4.2 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 4.2 ug/kg71-55-6 1,1,1-Trichloroethane ND 1.7 ug/kg79-00-5 1,1,2-Trichloroethane ND 1.7 ug/kg79-01-6 Trichloroethene ND 1.7 ug/kg75-69-4 Trichlorofluoromethane ND 1.7 ug/kg96-18-4 1,2,3-Trichloropropane ND 4.2 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 4.2 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 4.2 ug/kg75-01-4 Vinyl chloride ND 8.4 ug/kg

m,p-Xylene ND 1.7 ug/kg95-47-6 o-Xylene ND 1.7 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 146% b 153% b 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

69 of 397

MC48470

44.9

Page 102: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 105% 109% 65-129%460-00-4 4-Bromofluorobenzene 97% 117% 63-137%

(a) Confirmation run for surrogate recoveries.(b) Outside control limits. Associated target analytes are non-detect.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

70 of 397

MC48470

44.9

Page 103: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30640.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.6 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 260 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 520 ug/kg120-83-2 2,4-Dichlorophenol ND 520 ug/kg105-67-9 2,4-Dimethylphenol ND 520 ug/kg51-28-5 2,4-Dinitrophenol ND 520 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 520 ug/kg95-48-7 2-Methylphenol ND 520 ug/kg106-44-5 4-Methylphenol ND 520 ug/kg88-75-5 2-Nitrophenol ND 520 ug/kg100-02-7 4-Nitrophenol ND 520 ug/kg87-86-5 Pentachlorophenol a ND 520 ug/kg108-95-2 Phenol ND 260 ug/kg95-95-4 2,4,5-Trichlorophenol ND 520 ug/kg88-06-2 2,4,6-Trichlorophenol ND 520 ug/kg83-32-9 Acenaphthene ND 100 ug/kg208-96-8 Acenaphthylene 252 100 ug/kg62-53-3 Aniline ND 520 ug/kg120-12-7 Anthracene 133 100 ug/kg56-55-3 Benzo(a)anthracene 384 100 ug/kg50-32-8 Benzo(a)pyrene 476 260 ug/kg205-99-2 Benzo(b)fluoranthene 509 100 ug/kg191-24-2 Benzo(g,h,i)perylene 390 100 ug/kg207-08-9 Benzo(k)fluoranthene 468 100 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 260 ug/kg85-68-7 Butyl benzyl phthalate ND 260 ug/kg91-58-7 2-Chloronaphthalene ND 260 ug/kg106-47-8 4-Chloroaniline ND 520 ug/kg86-74-8 Carbazole ND 100 ug/kg218-01-9 Chrysene 570 100 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 260 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 260 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 260 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

71 of 397

MC48470

44.9

Page 104: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 260 ug/kg121-14-2 2,4-Dinitrotoluene ND 520 ug/kg606-20-2 2,6-Dinitrotoluene ND 520 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 520 ug/kg53-70-3 Dibenzo(a,h)anthracene ND 100 ug/kg132-64-9 Dibenzofuran ND 100 ug/kg84-74-2 Di-n-butyl phthalate ND 260 ug/kg117-84-0 Di-n-octyl phthalate ND 260 ug/kg84-66-2 Diethyl phthalate ND 260 ug/kg131-11-3 Dimethyl phthalate ND 260 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 260 ug/kg206-44-0 Fluoranthene 1010 100 ug/kg86-73-7 Fluorene ND 100 ug/kg118-74-1 Hexachlorobenzene ND 260 ug/kg87-68-3 Hexachlorobutadiene ND 260 ug/kg77-47-4 Hexachlorocyclopentadiene ND 520 ug/kg67-72-1 Hexachloroethane ND 260 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene 375 260 ug/kg78-59-1 Isophorone ND 260 ug/kg91-57-6 2-Methylnaphthalene ND 100 ug/kg88-74-4 2-Nitroaniline ND 520 ug/kg99-09-2 3-Nitroaniline ND 520 ug/kg100-01-6 4-Nitroaniline ND 520 ug/kg91-20-3 Naphthalene ND 100 ug/kg98-95-3 Nitrobenzene ND 260 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 260 ug/kg86-30-6 N-Nitrosodiphenylamine ND 260 ug/kg82-68-8 Pentachloronitrobenzene ND 520 ug/kg85-01-8 Phenanthrene 563 100 ug/kg129-00-0 Pyrene 968 100 ug/kg110-86-1 Pyridine ND 520 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 520 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 260 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 76% 25-109%4165-62-2 Phenol-d5 81% 29-113%118-79-6 2,4,6-Tribromophenol 104% 20-141%4165-60-0 Nitrobenzene-d5 78% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

72 of 397

MC48470

44.9

Page 105: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 90% 34-118%1718-51-0 Terphenyl-d14 105% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

73 of 397

MC48470

44.9

Page 106: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53131.D 1 11/02/16 TA 10/28/16 OP49036 GBE2670Run #2

Initial Weight Final VolumeRun #1 20.8 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 51 ug/kg309-00-2 Aldrin ND 5.1 ug/kg319-84-6 alpha-BHC ND 5.1 ug/kg319-85-7 beta-BHC ND 5.1 ug/kg319-86-8 delta-BHC ND 5.1 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.1 ug/kg12789-03-6 Chlordane ND 51 ug/kg60-57-1 Dieldrin ND 5.1 ug/kg72-54-8 4,4'-DDD ND 5.1 ug/kg72-55-9 4,4'-DDE ND 5.1 ug/kg50-29-3 4,4'-DDT 16.3 5.1 ug/kg72-20-8 Endrin ND 5.1 ug/kg1031-07-8 Endosulfan sulfate ND 5.1 ug/kg7421-93-4 Endrin aldehyde ND 5.1 ug/kg959-98-8 Endosulfan-I ND 5.1 ug/kg33213-65-9 Endosulfan-II ND 5.1 ug/kg76-44-8 Heptachlor ND 5.1 ug/kg1024-57-3 Heptachlor epoxide ND 5.1 ug/kg72-43-5 Methoxychlor ND 5.1 ug/kg53494-70-5 Endrin ketone ND 5.1 ug/kg8001-35-2 Toxaphene ND 51 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 65% 10-143%877-09-8 Tetrachloro-m-xylene 70% 10-143%2051-24-3 Decachlorobiphenyl 58% 10-172%2051-24-3 Decachlorobiphenyl 109% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

74 of 397

MC48470

44.9

Page 107: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70192.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.8 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 25 ug/kg11104-28-2 Aroclor 1221 ND 25 ug/kg11141-16-5 Aroclor 1232 ND 25 ug/kg53469-21-9 Aroclor 1242 ND 25 ug/kg12672-29-6 Aroclor 1248 ND 25 ug/kg11097-69-1 Aroclor 1254 ND 25 ug/kg11096-82-5 Aroclor 1260 ND 25 ug/kg37324-23-5 Aroclor 1262 ND 25 ug/kg11100-14-4 Aroclor 1268 ND 25 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 76% 25-145%877-09-8 Tetrachloro-m-xylene 71% 25-145%2051-24-3 Decachlorobiphenyl 123% 25-179%2051-24-3 Decachlorobiphenyl 120% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

75 of 397

MC48470

44.9

Page 108: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5231.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.8 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 17 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 69% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

76 of 397

MC48470

44.9

Page 109: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 6.1 0.87 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Barium 40.3 4.4 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Cadmium <0.35 0.35 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Chromium 14.6 0.87 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Lead 22.0 0.87 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Mercury <0.033 0.033 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 2 SW846 7471B 4

Selenium <0.87 0.87 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Silver <0.44 0.44 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

(1) Instrument QC Batch: MA19577(2) Instrument QC Batch: MA19578(3) Prep QC Batch: MP26949(4) Prep QC Batch: MP26959

RL = Reporting Limit

77 of 397

MC48470

44.9

Page 110: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.6 1.6 mg/kg 1 10/27/16 21:37 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 94.2 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <53 53 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 6.8 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

78 of 397

MC48470

44.9

Page 111: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/0-2 Lab Sample ID: MC48470-5A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead 0.13 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

79 of 397

MC48470

44.10

Page 112: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81619.D 1 11/01/16 KP n/a n/a MSM2926Run #2

Initial Weight Final VolumeRun #1 5.29 g 5.0 mlRun #2

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 9.8 ug/kg107-13-1 Acrylonitrile ND 25 ug/kg71-43-2 Benzene ND 0.98 ug/kg108-86-1 Bromobenzene ND 4.9 ug/kg75-27-4 Bromodichloromethane ND 2.0 ug/kg75-25-2 Bromoform ND 2.0 ug/kg74-83-9 Bromomethane ND 9.8 ug/kg78-93-3 2-Butanone (MEK) ND 9.8 ug/kg104-51-8 n-Butylbenzene ND 4.9 ug/kg135-98-8 sec-Butylbenzene ND 4.9 ug/kg98-06-6 tert-Butylbenzene ND 4.9 ug/kg75-15-0 Carbon disulfide ND 4.9 ug/kg56-23-5 Carbon tetrachloride ND 2.0 ug/kg108-90-7 Chlorobenzene ND 2.0 ug/kg75-00-3 Chloroethane ND 9.8 ug/kg67-66-3 Chloroform ND 2.0 ug/kg74-87-3 Chloromethane ND 4.9 ug/kg95-49-8 o-Chlorotoluene ND 4.9 ug/kg106-43-4 p-Chlorotoluene ND 4.9 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 4.9 ug/kg124-48-1 Dibromochloromethane ND 4.9 ug/kg106-93-4 1,2-Dibromoethane ND 2.0 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.0 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.0 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.0 ug/kg75-71-8 Dichlorodifluoromethane ND 4.9 ug/kg75-34-3 1,1-Dichloroethane ND 2.0 ug/kg107-06-2 1,2-Dichloroethane ND 2.0 ug/kg75-35-4 1,1-Dichloroethene ND 2.0 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.0 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.0 ug/kg78-87-5 1,2-Dichloropropane ND 2.0 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

80 of 397

MC48470

44.11

Page 113: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 4.9 ug/kg594-20-7 2,2-Dichloropropane ND 4.9 ug/kg563-58-6 1,1-Dichloropropene ND 4.9 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.0 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 2.0 ug/kg100-41-4 Ethylbenzene ND 2.0 ug/kg76-13-1 Freon 113 ND 4.9 ug/kg87-68-3 Hexachlorobutadiene ND 4.9 ug/kg591-78-6 2-Hexanone ND 4.9 ug/kg98-82-8 Isopropylbenzene ND 4.9 ug/kg99-87-6 p-Isopropyltoluene ND 4.9 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.0 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 4.9 ug/kg74-95-3 Methylene bromide ND 4.9 ug/kg75-09-2 Methylene chloride ND 2.0 ug/kg91-20-3 Naphthalene ND 4.9 ug/kg103-65-1 n-Propylbenzene ND 4.9 ug/kg100-42-5 Styrene ND 4.9 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.0 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 4.9 ug/kg127-18-4 Tetrachloroethene ND 2.0 ug/kg109-99-9 Tetrahydrofuran ND 9.8 ug/kg108-88-3 Toluene ND 4.9 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 9.8 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 4.9 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 4.9 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.0 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.0 ug/kg79-01-6 Trichloroethene ND 2.0 ug/kg75-69-4 Trichlorofluoromethane ND 2.0 ug/kg96-18-4 1,2,3-Trichloropropane ND 4.9 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 4.9 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 4.9 ug/kg75-01-4 Vinyl chloride ND 9.8 ug/kg

m,p-Xylene ND 2.0 ug/kg95-47-6 o-Xylene ND 2.0 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 152% a 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

81 of 397

MC48470

44.11

Page 114: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 110% 65-129%460-00-4 4-Bromofluorobenzene 96% 63-137%

(a) Outside control limits. Associated target analytes are non-detect.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

82 of 397

MC48470

44.11

Page 115: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30641.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.9 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 250 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 500 ug/kg120-83-2 2,4-Dichlorophenol ND 500 ug/kg105-67-9 2,4-Dimethylphenol ND 500 ug/kg51-28-5 2,4-Dinitrophenol ND 500 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 500 ug/kg95-48-7 2-Methylphenol ND 500 ug/kg106-44-5 4-Methylphenol ND 500 ug/kg88-75-5 2-Nitrophenol ND 500 ug/kg100-02-7 4-Nitrophenol ND 500 ug/kg87-86-5 Pentachlorophenol a ND 500 ug/kg108-95-2 Phenol ND 250 ug/kg95-95-4 2,4,5-Trichlorophenol ND 500 ug/kg88-06-2 2,4,6-Trichlorophenol ND 500 ug/kg83-32-9 Acenaphthene ND 99 ug/kg208-96-8 Acenaphthylene ND 99 ug/kg62-53-3 Aniline ND 500 ug/kg120-12-7 Anthracene ND 99 ug/kg56-55-3 Benzo(a)anthracene ND 99 ug/kg50-32-8 Benzo(a)pyrene ND 250 ug/kg205-99-2 Benzo(b)fluoranthene ND 99 ug/kg191-24-2 Benzo(g,h,i)perylene ND 99 ug/kg207-08-9 Benzo(k)fluoranthene ND 99 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 250 ug/kg85-68-7 Butyl benzyl phthalate ND 250 ug/kg91-58-7 2-Chloronaphthalene ND 250 ug/kg106-47-8 4-Chloroaniline ND 500 ug/kg86-74-8 Carbazole ND 99 ug/kg218-01-9 Chrysene ND 99 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 250 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 250 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 250 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

83 of 397

MC48470

44.11

Page 116: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 250 ug/kg121-14-2 2,4-Dinitrotoluene ND 500 ug/kg606-20-2 2,6-Dinitrotoluene ND 500 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 500 ug/kg53-70-3 Dibenzo(a,h)anthracene ND 99 ug/kg132-64-9 Dibenzofuran ND 99 ug/kg84-74-2 Di-n-butyl phthalate ND 250 ug/kg117-84-0 Di-n-octyl phthalate ND 250 ug/kg84-66-2 Diethyl phthalate ND 250 ug/kg131-11-3 Dimethyl phthalate ND 250 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 250 ug/kg206-44-0 Fluoranthene ND 99 ug/kg86-73-7 Fluorene ND 99 ug/kg118-74-1 Hexachlorobenzene ND 250 ug/kg87-68-3 Hexachlorobutadiene ND 250 ug/kg77-47-4 Hexachlorocyclopentadiene ND 500 ug/kg67-72-1 Hexachloroethane ND 250 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene ND 250 ug/kg78-59-1 Isophorone ND 250 ug/kg91-57-6 2-Methylnaphthalene ND 99 ug/kg88-74-4 2-Nitroaniline ND 500 ug/kg99-09-2 3-Nitroaniline ND 500 ug/kg100-01-6 4-Nitroaniline ND 500 ug/kg91-20-3 Naphthalene ND 99 ug/kg98-95-3 Nitrobenzene ND 250 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 250 ug/kg86-30-6 N-Nitrosodiphenylamine ND 250 ug/kg82-68-8 Pentachloronitrobenzene ND 500 ug/kg85-01-8 Phenanthrene ND 99 ug/kg129-00-0 Pyrene ND 99 ug/kg110-86-1 Pyridine ND 500 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 500 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 250 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 80% 25-109%4165-62-2 Phenol-d5 81% 29-113%118-79-6 2,4,6-Tribromophenol 103% 20-141%4165-60-0 Nitrobenzene-d5 78% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

84 of 397

MC48470

44.11

Page 117: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 87% 34-118%1718-51-0 Terphenyl-d14 103% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

85 of 397

MC48470

44.11

Page 118: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53088.D 1 11/02/16 TA 10/28/16 OP49036 GBE2668Run #2

Initial Weight Final VolumeRun #1 20.4 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 51 ug/kg309-00-2 Aldrin ND 5.1 ug/kg319-84-6 alpha-BHC ND 5.1 ug/kg319-85-7 beta-BHC ND 5.1 ug/kg319-86-8 delta-BHC ND 5.1 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.1 ug/kg12789-03-6 Chlordane ND 51 ug/kg60-57-1 Dieldrin ND 5.1 ug/kg72-54-8 4,4'-DDD ND 5.1 ug/kg72-55-9 4,4'-DDE ND 5.1 ug/kg50-29-3 4,4'-DDT ND 5.1 ug/kg72-20-8 Endrin ND 5.1 ug/kg1031-07-8 Endosulfan sulfate ND 5.1 ug/kg7421-93-4 Endrin aldehyde ND 5.1 ug/kg959-98-8 Endosulfan-I ND 5.1 ug/kg33213-65-9 Endosulfan-II ND 5.1 ug/kg76-44-8 Heptachlor ND 5.1 ug/kg1024-57-3 Heptachlor epoxide ND 5.1 ug/kg72-43-5 Methoxychlor ND 5.1 ug/kg53494-70-5 Endrin ketone ND 5.1 ug/kg8001-35-2 Toxaphene ND 51 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 89% 10-143%877-09-8 Tetrachloro-m-xylene 88% 10-143%2051-24-3 Decachlorobiphenyl 70% 10-172%2051-24-3 Decachlorobiphenyl 89% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

86 of 397

MC48470

44.11

Page 119: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70193.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.4 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 25 ug/kg11104-28-2 Aroclor 1221 ND 25 ug/kg11141-16-5 Aroclor 1232 ND 25 ug/kg53469-21-9 Aroclor 1242 ND 25 ug/kg12672-29-6 Aroclor 1248 ND 25 ug/kg11097-69-1 Aroclor 1254 ND 25 ug/kg11096-82-5 Aroclor 1260 ND 25 ug/kg37324-23-5 Aroclor 1262 ND 25 ug/kg11100-14-4 Aroclor 1268 ND 25 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 81% 25-145%877-09-8 Tetrachloro-m-xylene 80% 25-145%2051-24-3 Decachlorobiphenyl 108% 25-179%2051-24-3 Decachlorobiphenyl 108% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

87 of 397

MC48470

44.11

Page 120: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5225.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.3 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 17 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 66% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

88 of 397

MC48470

44.11

Page 121: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 2.2 0.85 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Barium 41.7 4.3 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Cadmium <0.34 0.34 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Chromium 12.6 0.85 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Lead 2.1 0.85 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Mercury <0.033 0.033 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 2 SW846 7471B 4

Selenium <0.85 0.85 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Silver <0.43 0.43 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

(1) Instrument QC Batch: MA19577(2) Instrument QC Batch: MA19578(3) Prep QC Batch: MP26949(4) Prep QC Batch: MP26959

RL = Reporting Limit

89 of 397

MC48470

44.11

Page 122: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.5 1.5 mg/kg 1 10/27/16 21:41 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 96.3 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <52 52 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 5.2 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

90 of 397

MC48470

44.11

Page 123: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/6-8 Lab Sample ID: MC48470-6A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 96.3 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <0.010 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

91 of 397

MC48470

44.12

Page 124: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81643.D 1 11/02/16 KP n/a n/a MSM2927Run #2 a M81620.D 1 11/01/16 KP n/a n/a MSM2926

Initial Weight Final VolumeRun #1 5.06 g 5.0 mlRun #2 4.65 g 5.0 ml

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/kg107-13-1 Acrylonitrile ND 26 ug/kg71-43-2 Benzene ND 1.0 ug/kg108-86-1 Bromobenzene ND 5.2 ug/kg75-27-4 Bromodichloromethane ND 2.1 ug/kg75-25-2 Bromoform ND 2.1 ug/kg74-83-9 Bromomethane ND 10 ug/kg78-93-3 2-Butanone (MEK) ND 10 ug/kg104-51-8 n-Butylbenzene ND 5.2 ug/kg135-98-8 sec-Butylbenzene ND 5.2 ug/kg98-06-6 tert-Butylbenzene ND 5.2 ug/kg75-15-0 Carbon disulfide ND 5.2 ug/kg56-23-5 Carbon tetrachloride ND 2.1 ug/kg108-90-7 Chlorobenzene ND 2.1 ug/kg75-00-3 Chloroethane ND 10 ug/kg67-66-3 Chloroform ND 2.1 ug/kg74-87-3 Chloromethane ND 5.2 ug/kg95-49-8 o-Chlorotoluene ND 5.2 ug/kg106-43-4 p-Chlorotoluene ND 5.2 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 5.2 ug/kg124-48-1 Dibromochloromethane ND 5.2 ug/kg106-93-4 1,2-Dibromoethane ND 2.1 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.1 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.1 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.1 ug/kg75-71-8 Dichlorodifluoromethane ND 5.2 ug/kg75-34-3 1,1-Dichloroethane ND 2.1 ug/kg107-06-2 1,2-Dichloroethane ND 2.1 ug/kg75-35-4 1,1-Dichloroethene ND 2.1 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.1 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.1 ug/kg78-87-5 1,2-Dichloropropane ND 2.1 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

92 of 397

MC48470

44.13

Page 125: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 5.2 ug/kg594-20-7 2,2-Dichloropropane ND 5.2 ug/kg563-58-6 1,1-Dichloropropene ND 5.2 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.1 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 2.1 ug/kg100-41-4 Ethylbenzene ND 2.1 ug/kg76-13-1 Freon 113 ND 5.2 ug/kg87-68-3 Hexachlorobutadiene ND 5.2 ug/kg591-78-6 2-Hexanone ND 5.2 ug/kg98-82-8 Isopropylbenzene ND 5.2 ug/kg99-87-6 p-Isopropyltoluene ND 5.2 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.1 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.2 ug/kg74-95-3 Methylene bromide ND 5.2 ug/kg75-09-2 Methylene chloride ND 2.1 ug/kg91-20-3 Naphthalene ND 5.2 ug/kg103-65-1 n-Propylbenzene ND 5.2 ug/kg100-42-5 Styrene ND 5.2 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.1 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 5.2 ug/kg127-18-4 Tetrachloroethene ND 2.1 ug/kg109-99-9 Tetrahydrofuran ND 10 ug/kg108-88-3 Toluene ND 5.2 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 10 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 5.2 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 5.2 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.1 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.1 ug/kg79-01-6 Trichloroethene ND 2.1 ug/kg75-69-4 Trichlorofluoromethane ND 2.1 ug/kg96-18-4 1,2,3-Trichloropropane ND 5.2 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 5.2 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 5.2 ug/kg75-01-4 Vinyl chloride ND 10 ug/kg

m,p-Xylene ND 2.1 ug/kg95-47-6 o-Xylene ND 2.1 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 150% b 157% b 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

93 of 397

MC48470

44.13

Page 126: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 107% 111% 65-129%460-00-4 4-Bromofluorobenzene 96% 95% 63-137%

(a) Confirmation run for surrogate recoveries.(b) Outside control limits. Associated target analytes are non-detect.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

94 of 397

MC48470

44.13

Page 127: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30642.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.4 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 260 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 520 ug/kg120-83-2 2,4-Dichlorophenol ND 520 ug/kg105-67-9 2,4-Dimethylphenol ND 520 ug/kg51-28-5 2,4-Dinitrophenol ND 520 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 520 ug/kg95-48-7 2-Methylphenol ND 520 ug/kg106-44-5 4-Methylphenol ND 520 ug/kg88-75-5 2-Nitrophenol ND 520 ug/kg100-02-7 4-Nitrophenol ND 520 ug/kg87-86-5 Pentachlorophenol a ND 520 ug/kg108-95-2 Phenol ND 260 ug/kg95-95-4 2,4,5-Trichlorophenol ND 520 ug/kg88-06-2 2,4,6-Trichlorophenol ND 520 ug/kg83-32-9 Acenaphthene ND 100 ug/kg208-96-8 Acenaphthylene ND 100 ug/kg62-53-3 Aniline ND 520 ug/kg120-12-7 Anthracene ND 100 ug/kg56-55-3 Benzo(a)anthracene ND 100 ug/kg50-32-8 Benzo(a)pyrene ND 260 ug/kg205-99-2 Benzo(b)fluoranthene ND 100 ug/kg191-24-2 Benzo(g,h,i)perylene ND 100 ug/kg207-08-9 Benzo(k)fluoranthene ND 100 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 260 ug/kg85-68-7 Butyl benzyl phthalate ND 260 ug/kg91-58-7 2-Chloronaphthalene ND 260 ug/kg106-47-8 4-Chloroaniline ND 520 ug/kg86-74-8 Carbazole ND 100 ug/kg218-01-9 Chrysene ND 100 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 260 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 260 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 260 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

95 of 397

MC48470

44.13

Page 128: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 260 ug/kg121-14-2 2,4-Dinitrotoluene ND 520 ug/kg606-20-2 2,6-Dinitrotoluene ND 520 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 520 ug/kg53-70-3 Dibenzo(a,h)anthracene ND 100 ug/kg132-64-9 Dibenzofuran ND 100 ug/kg84-74-2 Di-n-butyl phthalate ND 260 ug/kg117-84-0 Di-n-octyl phthalate ND 260 ug/kg84-66-2 Diethyl phthalate ND 260 ug/kg131-11-3 Dimethyl phthalate ND 260 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 260 ug/kg206-44-0 Fluoranthene ND 100 ug/kg86-73-7 Fluorene ND 100 ug/kg118-74-1 Hexachlorobenzene ND 260 ug/kg87-68-3 Hexachlorobutadiene ND 260 ug/kg77-47-4 Hexachlorocyclopentadiene ND 520 ug/kg67-72-1 Hexachloroethane ND 260 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene ND 260 ug/kg78-59-1 Isophorone ND 260 ug/kg91-57-6 2-Methylnaphthalene ND 100 ug/kg88-74-4 2-Nitroaniline ND 520 ug/kg99-09-2 3-Nitroaniline ND 520 ug/kg100-01-6 4-Nitroaniline ND 520 ug/kg91-20-3 Naphthalene ND 100 ug/kg98-95-3 Nitrobenzene ND 260 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 260 ug/kg86-30-6 N-Nitrosodiphenylamine ND 260 ug/kg82-68-8 Pentachloronitrobenzene ND 520 ug/kg85-01-8 Phenanthrene ND 100 ug/kg129-00-0 Pyrene ND 100 ug/kg110-86-1 Pyridine ND 520 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 520 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 260 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 67% 25-109%4165-62-2 Phenol-d5 71% 29-113%118-79-6 2,4,6-Tribromophenol 94% 20-141%4165-60-0 Nitrobenzene-d5 64% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

96 of 397

MC48470

44.13

Page 129: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 76% 34-118%1718-51-0 Terphenyl-d14 95% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

97 of 397

MC48470

44.13

Page 130: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53087.D 1 11/02/16 TA 10/28/16 OP49036 GBE2668Run #2

Initial Weight Final VolumeRun #1 20.1 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 52 ug/kg309-00-2 Aldrin ND 5.2 ug/kg319-84-6 alpha-BHC ND 5.2 ug/kg319-85-7 beta-BHC ND 5.2 ug/kg319-86-8 delta-BHC ND 5.2 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.2 ug/kg12789-03-6 Chlordane ND 52 ug/kg60-57-1 Dieldrin ND 5.2 ug/kg72-54-8 4,4'-DDD ND 5.2 ug/kg72-55-9 4,4'-DDE ND 5.2 ug/kg50-29-3 4,4'-DDT ND 5.2 ug/kg72-20-8 Endrin ND 5.2 ug/kg1031-07-8 Endosulfan sulfate ND 5.2 ug/kg7421-93-4 Endrin aldehyde ND 5.2 ug/kg959-98-8 Endosulfan-I ND 5.2 ug/kg33213-65-9 Endosulfan-II ND 5.2 ug/kg76-44-8 Heptachlor ND 5.2 ug/kg1024-57-3 Heptachlor epoxide ND 5.2 ug/kg72-43-5 Methoxychlor ND 5.2 ug/kg53494-70-5 Endrin ketone ND 5.2 ug/kg8001-35-2 Toxaphene ND 52 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 60% 10-143%877-09-8 Tetrachloro-m-xylene 58% 10-143%2051-24-3 Decachlorobiphenyl 55% 10-172%2051-24-3 Decachlorobiphenyl 60% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

98 of 397

MC48470

44.13

Page 131: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70195.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.1 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 26 ug/kg11104-28-2 Aroclor 1221 ND 26 ug/kg11141-16-5 Aroclor 1232 ND 26 ug/kg53469-21-9 Aroclor 1242 ND 26 ug/kg12672-29-6 Aroclor 1248 ND 26 ug/kg11097-69-1 Aroclor 1254 ND 26 ug/kg11096-82-5 Aroclor 1260 ND 26 ug/kg37324-23-5 Aroclor 1262 ND 26 ug/kg11100-14-4 Aroclor 1268 ND 26 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 82% 25-145%877-09-8 Tetrachloro-m-xylene 82% 25-145%2051-24-3 Decachlorobiphenyl 109% 25-179%2051-24-3 Decachlorobiphenyl 109% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

99 of 397

MC48470

44.13

Page 132: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5222.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.4 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 17 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 63% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

100 of 397

MC48470

44.13

Page 133: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 2.7 0.84 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Barium 35.7 4.2 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Cadmium <0.34 0.34 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Chromium 13.2 0.84 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Lead 2.2 0.84 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Mercury <0.033 0.033 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 2 SW846 7471B 4

Selenium <0.84 0.84 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Silver <0.42 0.42 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

(1) Instrument QC Batch: MA19577(2) Instrument QC Batch: MA19578(3) Prep QC Batch: MP26949(4) Prep QC Batch: MP26959

RL = Reporting Limit

101 of 397

MC48470

44.13

Page 134: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.6 1.6 mg/kg 1 10/27/16 21:41 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 95.2 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <52 52 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 5.4 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

102 of 397

MC48470

44.13

Page 135: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-3/10-12 Lab Sample ID: MC48470-7A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 95.2 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <0.010 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

103 of 397

MC48470

44.14

Page 136: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81644.D 1 11/02/16 KP n/a n/a MSM2927Run #2 a M81621.D 1 11/01/16 KP n/a n/a MSM2926

Initial Weight Final VolumeRun #1 4.76 g 5.0 mlRun #2 4.82 g 5.0 ml

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 11 ug/kg107-13-1 Acrylonitrile ND 28 ug/kg71-43-2 Benzene ND 1.1 ug/kg108-86-1 Bromobenzene ND 5.6 ug/kg75-27-4 Bromodichloromethane ND 2.2 ug/kg75-25-2 Bromoform ND 2.2 ug/kg74-83-9 Bromomethane ND 11 ug/kg78-93-3 2-Butanone (MEK) ND 11 ug/kg104-51-8 n-Butylbenzene ND 5.6 ug/kg135-98-8 sec-Butylbenzene ND 5.6 ug/kg98-06-6 tert-Butylbenzene ND 5.6 ug/kg75-15-0 Carbon disulfide ND 5.6 ug/kg56-23-5 Carbon tetrachloride ND 2.2 ug/kg108-90-7 Chlorobenzene ND 2.2 ug/kg75-00-3 Chloroethane ND 11 ug/kg67-66-3 Chloroform ND 2.2 ug/kg74-87-3 Chloromethane ND 5.6 ug/kg95-49-8 o-Chlorotoluene ND 5.6 ug/kg106-43-4 p-Chlorotoluene ND 5.6 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 5.6 ug/kg124-48-1 Dibromochloromethane ND 5.6 ug/kg106-93-4 1,2-Dibromoethane ND 2.2 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.2 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.2 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.2 ug/kg75-71-8 Dichlorodifluoromethane ND 5.6 ug/kg75-34-3 1,1-Dichloroethane ND 2.2 ug/kg107-06-2 1,2-Dichloroethane ND 2.2 ug/kg75-35-4 1,1-Dichloroethene ND 2.2 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.2 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.2 ug/kg78-87-5 1,2-Dichloropropane ND 2.2 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

104 of 397

MC48470

44.15

Page 137: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 5.6 ug/kg594-20-7 2,2-Dichloropropane ND 5.6 ug/kg563-58-6 1,1-Dichloropropene ND 5.6 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.2 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 2.2 ug/kg100-41-4 Ethylbenzene ND 2.2 ug/kg76-13-1 Freon 113 ND 5.6 ug/kg87-68-3 Hexachlorobutadiene ND 5.6 ug/kg591-78-6 2-Hexanone ND 5.6 ug/kg98-82-8 Isopropylbenzene ND 5.6 ug/kg99-87-6 p-Isopropyltoluene ND 5.6 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.2 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.6 ug/kg74-95-3 Methylene bromide ND 5.6 ug/kg75-09-2 Methylene chloride ND 2.2 ug/kg91-20-3 Naphthalene ND 5.6 ug/kg103-65-1 n-Propylbenzene ND 5.6 ug/kg100-42-5 Styrene ND 5.6 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.2 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 5.6 ug/kg127-18-4 Tetrachloroethene ND 2.2 ug/kg109-99-9 Tetrahydrofuran ND 11 ug/kg108-88-3 Toluene ND 5.6 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 11 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 5.6 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 5.6 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.2 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.2 ug/kg79-01-6 Trichloroethene ND 2.2 ug/kg75-69-4 Trichlorofluoromethane ND 2.2 ug/kg96-18-4 1,2,3-Trichloropropane ND 5.6 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 5.6 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 5.6 ug/kg75-01-4 Vinyl chloride ND 11 ug/kg

m,p-Xylene ND 2.2 ug/kg95-47-6 o-Xylene ND 2.2 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 158% b 166% b 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

105 of 397

MC48470

44.15

Page 138: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 109% 111% 65-129%460-00-4 4-Bromofluorobenzene 92% 94% 63-137%

(a) Confirmation run for surrogate recoveries.(b) Outside control limits. Associated target analytes are non-detect.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

106 of 397

MC48470

44.15

Page 139: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30643.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.0 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 270 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 530 ug/kg120-83-2 2,4-Dichlorophenol ND 530 ug/kg105-67-9 2,4-Dimethylphenol ND 530 ug/kg51-28-5 2,4-Dinitrophenol ND 530 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 530 ug/kg95-48-7 2-Methylphenol ND 530 ug/kg106-44-5 4-Methylphenol ND 530 ug/kg88-75-5 2-Nitrophenol ND 530 ug/kg100-02-7 4-Nitrophenol ND 530 ug/kg87-86-5 Pentachlorophenol a ND 530 ug/kg108-95-2 Phenol ND 270 ug/kg95-95-4 2,4,5-Trichlorophenol ND 530 ug/kg88-06-2 2,4,6-Trichlorophenol ND 530 ug/kg83-32-9 Acenaphthene ND 110 ug/kg208-96-8 Acenaphthylene ND 110 ug/kg62-53-3 Aniline ND 530 ug/kg120-12-7 Anthracene ND 110 ug/kg56-55-3 Benzo(a)anthracene ND 110 ug/kg50-32-8 Benzo(a)pyrene ND 270 ug/kg205-99-2 Benzo(b)fluoranthene ND 110 ug/kg191-24-2 Benzo(g,h,i)perylene ND 110 ug/kg207-08-9 Benzo(k)fluoranthene ND 110 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 270 ug/kg85-68-7 Butyl benzyl phthalate ND 270 ug/kg91-58-7 2-Chloronaphthalene ND 270 ug/kg106-47-8 4-Chloroaniline ND 530 ug/kg86-74-8 Carbazole ND 110 ug/kg218-01-9 Chrysene ND 110 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 270 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 270 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 270 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

107 of 397

MC48470

44.15

Page 140: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 270 ug/kg121-14-2 2,4-Dinitrotoluene ND 530 ug/kg606-20-2 2,6-Dinitrotoluene ND 530 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 530 ug/kg53-70-3 Dibenzo(a,h)anthracene ND 110 ug/kg132-64-9 Dibenzofuran ND 110 ug/kg84-74-2 Di-n-butyl phthalate ND 270 ug/kg117-84-0 Di-n-octyl phthalate ND 270 ug/kg84-66-2 Diethyl phthalate ND 270 ug/kg131-11-3 Dimethyl phthalate ND 270 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 270 ug/kg206-44-0 Fluoranthene ND 110 ug/kg86-73-7 Fluorene ND 110 ug/kg118-74-1 Hexachlorobenzene ND 270 ug/kg87-68-3 Hexachlorobutadiene ND 270 ug/kg77-47-4 Hexachlorocyclopentadiene ND 530 ug/kg67-72-1 Hexachloroethane ND 270 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene ND 270 ug/kg78-59-1 Isophorone ND 270 ug/kg91-57-6 2-Methylnaphthalene ND 110 ug/kg88-74-4 2-Nitroaniline ND 530 ug/kg99-09-2 3-Nitroaniline ND 530 ug/kg100-01-6 4-Nitroaniline ND 530 ug/kg91-20-3 Naphthalene ND 110 ug/kg98-95-3 Nitrobenzene ND 270 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 270 ug/kg86-30-6 N-Nitrosodiphenylamine ND 270 ug/kg82-68-8 Pentachloronitrobenzene ND 530 ug/kg85-01-8 Phenanthrene ND 110 ug/kg129-00-0 Pyrene ND 110 ug/kg110-86-1 Pyridine ND 530 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 530 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 270 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 81% 25-109%4165-62-2 Phenol-d5 84% 29-113%118-79-6 2,4,6-Tribromophenol 106% 20-141%4165-60-0 Nitrobenzene-d5 80% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

108 of 397

MC48470

44.15

Page 141: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 91% 34-118%1718-51-0 Terphenyl-d14 107% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

109 of 397

MC48470

44.15

Page 142: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53086.D 1 11/02/16 TA 10/28/16 OP49036 GBE2668Run #2

Initial Weight Final VolumeRun #1 20.5 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 52 ug/kg309-00-2 Aldrin ND 5.2 ug/kg319-84-6 alpha-BHC ND 5.2 ug/kg319-85-7 beta-BHC ND 5.2 ug/kg319-86-8 delta-BHC ND 5.2 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.2 ug/kg12789-03-6 Chlordane ND 52 ug/kg60-57-1 Dieldrin ND 5.2 ug/kg72-54-8 4,4'-DDD ND 5.2 ug/kg72-55-9 4,4'-DDE ND 5.2 ug/kg50-29-3 4,4'-DDT ND 5.2 ug/kg72-20-8 Endrin ND 5.2 ug/kg1031-07-8 Endosulfan sulfate ND 5.2 ug/kg7421-93-4 Endrin aldehyde ND 5.2 ug/kg959-98-8 Endosulfan-I ND 5.2 ug/kg33213-65-9 Endosulfan-II ND 5.2 ug/kg76-44-8 Heptachlor ND 5.2 ug/kg1024-57-3 Heptachlor epoxide ND 5.2 ug/kg72-43-5 Methoxychlor ND 5.2 ug/kg53494-70-5 Endrin ketone ND 5.2 ug/kg8001-35-2 Toxaphene ND 52 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 76% 10-143%877-09-8 Tetrachloro-m-xylene 74% 10-143%2051-24-3 Decachlorobiphenyl 72% 10-172%2051-24-3 Decachlorobiphenyl 77% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

110 of 397

MC48470

44.15

Page 143: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70196.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.5 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 26 ug/kg11104-28-2 Aroclor 1221 ND 26 ug/kg11141-16-5 Aroclor 1232 ND 26 ug/kg53469-21-9 Aroclor 1242 ND 26 ug/kg12672-29-6 Aroclor 1248 ND 26 ug/kg11097-69-1 Aroclor 1254 ND 26 ug/kg11096-82-5 Aroclor 1260 ND 26 ug/kg37324-23-5 Aroclor 1262 ND 26 ug/kg11100-14-4 Aroclor 1268 ND 26 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 81% 25-145%877-09-8 Tetrachloro-m-xylene 81% 25-145%2051-24-3 Decachlorobiphenyl 118% 25-179%2051-24-3 Decachlorobiphenyl 120% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

111 of 397

MC48470

44.15

Page 144: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5229.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.8 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 17 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 61% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

112 of 397

MC48470

44.15

Page 145: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 2.1 0.85 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Barium 33.9 4.3 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Cadmium <0.34 0.34 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Chromium 10.6 0.85 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Lead 1.8 0.85 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Mercury <0.032 0.032 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 2 SW846 7471B 4

Selenium <0.85 0.85 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Silver <0.43 0.43 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

(1) Instrument QC Batch: MA19577(2) Instrument QC Batch: MA19578(3) Prep QC Batch: MP26949(4) Prep QC Batch: MP26959

RL = Reporting Limit

113 of 397

MC48470

44.15

Page 146: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.6 1.6 mg/kg 1 10/27/16 21:41 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 93.8 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <53 53 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 5.9 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

114 of 397

MC48470

44.15

Page 147: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/0-2 Lab Sample ID: MC48470-8A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <0.010 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

115 of 397

MC48470

44.16

Page 148: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81622.D 1 11/01/16 KP n/a n/a MSM2926Run #2

Initial Weight Final VolumeRun #1 4.91 g 5.0 mlRun #2

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/kg107-13-1 Acrylonitrile ND 26 ug/kg71-43-2 Benzene ND 1.0 ug/kg108-86-1 Bromobenzene ND 5.2 ug/kg75-27-4 Bromodichloromethane ND 2.1 ug/kg75-25-2 Bromoform ND 2.1 ug/kg74-83-9 Bromomethane ND 10 ug/kg78-93-3 2-Butanone (MEK) ND 10 ug/kg104-51-8 n-Butylbenzene ND 5.2 ug/kg135-98-8 sec-Butylbenzene ND 5.2 ug/kg98-06-6 tert-Butylbenzene ND 5.2 ug/kg75-15-0 Carbon disulfide ND 5.2 ug/kg56-23-5 Carbon tetrachloride ND 2.1 ug/kg108-90-7 Chlorobenzene ND 2.1 ug/kg75-00-3 Chloroethane ND 10 ug/kg67-66-3 Chloroform ND 2.1 ug/kg74-87-3 Chloromethane ND 5.2 ug/kg95-49-8 o-Chlorotoluene ND 5.2 ug/kg106-43-4 p-Chlorotoluene ND 5.2 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 5.2 ug/kg124-48-1 Dibromochloromethane ND 5.2 ug/kg106-93-4 1,2-Dibromoethane ND 2.1 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.1 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.1 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.1 ug/kg75-71-8 Dichlorodifluoromethane ND 5.2 ug/kg75-34-3 1,1-Dichloroethane ND 2.1 ug/kg107-06-2 1,2-Dichloroethane ND 2.1 ug/kg75-35-4 1,1-Dichloroethene ND 2.1 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.1 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.1 ug/kg78-87-5 1,2-Dichloropropane ND 2.1 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

116 of 397

MC48470

44.17

Page 149: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 5.2 ug/kg594-20-7 2,2-Dichloropropane ND 5.2 ug/kg563-58-6 1,1-Dichloropropene ND 5.2 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.1 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 2.1 ug/kg100-41-4 Ethylbenzene ND 2.1 ug/kg76-13-1 Freon 113 ND 5.2 ug/kg87-68-3 Hexachlorobutadiene ND 5.2 ug/kg591-78-6 2-Hexanone ND 5.2 ug/kg98-82-8 Isopropylbenzene ND 5.2 ug/kg99-87-6 p-Isopropyltoluene ND 5.2 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.1 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.2 ug/kg74-95-3 Methylene bromide ND 5.2 ug/kg75-09-2 Methylene chloride ND 2.1 ug/kg91-20-3 Naphthalene ND 5.2 ug/kg103-65-1 n-Propylbenzene ND 5.2 ug/kg100-42-5 Styrene ND 5.2 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.1 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 5.2 ug/kg127-18-4 Tetrachloroethene ND 2.1 ug/kg109-99-9 Tetrahydrofuran ND 10 ug/kg108-88-3 Toluene ND 5.2 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 10 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 5.2 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 5.2 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.1 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.1 ug/kg79-01-6 Trichloroethene ND 2.1 ug/kg75-69-4 Trichlorofluoromethane ND 2.1 ug/kg96-18-4 1,2,3-Trichloropropane ND 5.2 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 5.2 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 5.2 ug/kg75-01-4 Vinyl chloride ND 10 ug/kg

m,p-Xylene ND 2.1 ug/kg95-47-6 o-Xylene ND 2.1 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 159% a 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

117 of 397

MC48470

44.17

Page 150: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 112% 65-129%460-00-4 4-Bromofluorobenzene 93% 63-137%

(a) Outside control limits. Associated target analytes are non-detect.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

118 of 397

MC48470

44.17

Page 151: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30644.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.8 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 250 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 490 ug/kg120-83-2 2,4-Dichlorophenol ND 490 ug/kg105-67-9 2,4-Dimethylphenol ND 490 ug/kg51-28-5 2,4-Dinitrophenol ND 490 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 490 ug/kg95-48-7 2-Methylphenol ND 490 ug/kg106-44-5 4-Methylphenol ND 490 ug/kg88-75-5 2-Nitrophenol ND 490 ug/kg100-02-7 4-Nitrophenol ND 490 ug/kg87-86-5 Pentachlorophenol a ND 490 ug/kg108-95-2 Phenol ND 250 ug/kg95-95-4 2,4,5-Trichlorophenol ND 490 ug/kg88-06-2 2,4,6-Trichlorophenol ND 490 ug/kg83-32-9 Acenaphthene ND 99 ug/kg208-96-8 Acenaphthylene ND 99 ug/kg62-53-3 Aniline ND 490 ug/kg120-12-7 Anthracene ND 99 ug/kg56-55-3 Benzo(a)anthracene ND 99 ug/kg50-32-8 Benzo(a)pyrene ND 250 ug/kg205-99-2 Benzo(b)fluoranthene ND 99 ug/kg191-24-2 Benzo(g,h,i)perylene ND 99 ug/kg207-08-9 Benzo(k)fluoranthene ND 99 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 250 ug/kg85-68-7 Butyl benzyl phthalate ND 250 ug/kg91-58-7 2-Chloronaphthalene ND 250 ug/kg106-47-8 4-Chloroaniline ND 490 ug/kg86-74-8 Carbazole ND 99 ug/kg218-01-9 Chrysene ND 99 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 250 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 250 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 250 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

119 of 397

MC48470

44.17

Page 152: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 250 ug/kg121-14-2 2,4-Dinitrotoluene ND 490 ug/kg606-20-2 2,6-Dinitrotoluene ND 490 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 490 ug/kg53-70-3 Dibenzo(a,h)anthracene ND 99 ug/kg132-64-9 Dibenzofuran ND 99 ug/kg84-74-2 Di-n-butyl phthalate ND 250 ug/kg117-84-0 Di-n-octyl phthalate ND 250 ug/kg84-66-2 Diethyl phthalate ND 250 ug/kg131-11-3 Dimethyl phthalate ND 250 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 250 ug/kg206-44-0 Fluoranthene ND 99 ug/kg86-73-7 Fluorene ND 99 ug/kg118-74-1 Hexachlorobenzene ND 250 ug/kg87-68-3 Hexachlorobutadiene ND 250 ug/kg77-47-4 Hexachlorocyclopentadiene ND 490 ug/kg67-72-1 Hexachloroethane ND 250 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene ND 250 ug/kg78-59-1 Isophorone ND 250 ug/kg91-57-6 2-Methylnaphthalene ND 99 ug/kg88-74-4 2-Nitroaniline ND 490 ug/kg99-09-2 3-Nitroaniline ND 490 ug/kg100-01-6 4-Nitroaniline ND 490 ug/kg91-20-3 Naphthalene ND 99 ug/kg98-95-3 Nitrobenzene ND 250 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 250 ug/kg86-30-6 N-Nitrosodiphenylamine ND 250 ug/kg82-68-8 Pentachloronitrobenzene ND 490 ug/kg85-01-8 Phenanthrene ND 99 ug/kg129-00-0 Pyrene ND 99 ug/kg110-86-1 Pyridine ND 490 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 490 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 250 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 64% 25-109%4165-62-2 Phenol-d5 68% 29-113%118-79-6 2,4,6-Tribromophenol 95% 20-141%4165-60-0 Nitrobenzene-d5 65% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

120 of 397

MC48470

44.17

Page 153: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 76% 34-118%1718-51-0 Terphenyl-d14 103% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

121 of 397

MC48470

44.17

Page 154: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53085.D 1 11/02/16 TA 10/28/16 OP49036 GBE2668Run #2

Initial Weight Final VolumeRun #1 20.2 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 51 ug/kg309-00-2 Aldrin ND 5.1 ug/kg319-84-6 alpha-BHC ND 5.1 ug/kg319-85-7 beta-BHC ND 5.1 ug/kg319-86-8 delta-BHC ND 5.1 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.1 ug/kg12789-03-6 Chlordane ND 51 ug/kg60-57-1 Dieldrin ND 5.1 ug/kg72-54-8 4,4'-DDD ND 5.1 ug/kg72-55-9 4,4'-DDE ND 5.1 ug/kg50-29-3 4,4'-DDT ND 5.1 ug/kg72-20-8 Endrin ND 5.1 ug/kg1031-07-8 Endosulfan sulfate ND 5.1 ug/kg7421-93-4 Endrin aldehyde ND 5.1 ug/kg959-98-8 Endosulfan-I ND 5.1 ug/kg33213-65-9 Endosulfan-II ND 5.1 ug/kg76-44-8 Heptachlor ND 5.1 ug/kg1024-57-3 Heptachlor epoxide ND 5.1 ug/kg72-43-5 Methoxychlor ND 5.1 ug/kg53494-70-5 Endrin ketone ND 5.1 ug/kg8001-35-2 Toxaphene ND 51 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 76% 10-143%877-09-8 Tetrachloro-m-xylene 74% 10-143%2051-24-3 Decachlorobiphenyl 69% 10-172%2051-24-3 Decachlorobiphenyl 74% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

122 of 397

MC48470

44.17

Page 155: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70197.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.2 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 25 ug/kg11104-28-2 Aroclor 1221 ND 25 ug/kg11141-16-5 Aroclor 1232 ND 25 ug/kg53469-21-9 Aroclor 1242 ND 25 ug/kg12672-29-6 Aroclor 1248 ND 25 ug/kg11097-69-1 Aroclor 1254 ND 25 ug/kg11096-82-5 Aroclor 1260 ND 25 ug/kg37324-23-5 Aroclor 1262 ND 25 ug/kg11100-14-4 Aroclor 1268 ND 25 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 80% 25-145%877-09-8 Tetrachloro-m-xylene 79% 25-145%2051-24-3 Decachlorobiphenyl 109% 25-179%2051-24-3 Decachlorobiphenyl 109% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

123 of 397

MC48470

44.17

Page 156: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5221.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 16.0 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 16 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 57% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

124 of 397

MC48470

44.17

Page 157: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 2.1 0.83 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Barium 29.1 4.1 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Cadmium <0.33 0.33 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Chromium 12.2 0.83 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Lead 2.5 0.83 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Mercury <0.033 0.033 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 2 SW846 7471B 4

Selenium <0.83 0.83 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Silver <0.41 0.41 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

(1) Instrument QC Batch: MA19577(2) Instrument QC Batch: MA19578(3) Prep QC Batch: MP26949(4) Prep QC Batch: MP26959

RL = Reporting Limit

125 of 397

MC48470

44.17

Page 158: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.5 1.5 mg/kg 1 10/27/16 21:41 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 97.5 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <51 51 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 7.0 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

126 of 397

MC48470

44.17

Page 159: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-2/4-6 Lab Sample ID: MC48470-9A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 97.5 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <0.010 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

127 of 397

MC48470

44.18

Page 160: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81623.D 1 11/01/16 KP n/a n/a MSM2926Run #2 a M81645.D 1 11/02/16 KP n/a n/a MSM2927

Initial Weight Final VolumeRun #1 4.45 g 5.0 mlRun #2 5.03 g 5.0 ml

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 12 ug/kg107-13-1 Acrylonitrile ND 30 ug/kg71-43-2 Benzene ND 1.2 ug/kg108-86-1 Bromobenzene ND 6.0 ug/kg75-27-4 Bromodichloromethane ND 2.4 ug/kg75-25-2 Bromoform ND 2.4 ug/kg74-83-9 Bromomethane ND 12 ug/kg78-93-3 2-Butanone (MEK) ND 12 ug/kg104-51-8 n-Butylbenzene ND 6.0 ug/kg135-98-8 sec-Butylbenzene ND 6.0 ug/kg98-06-6 tert-Butylbenzene ND 6.0 ug/kg75-15-0 Carbon disulfide ND 6.0 ug/kg56-23-5 Carbon tetrachloride ND 2.4 ug/kg108-90-7 Chlorobenzene ND 2.4 ug/kg75-00-3 Chloroethane ND 12 ug/kg67-66-3 Chloroform ND 2.4 ug/kg74-87-3 Chloromethane ND 6.0 ug/kg95-49-8 o-Chlorotoluene ND 6.0 ug/kg106-43-4 p-Chlorotoluene ND 6.0 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 6.0 ug/kg124-48-1 Dibromochloromethane ND 6.0 ug/kg106-93-4 1,2-Dibromoethane ND 2.4 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.4 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.4 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.4 ug/kg75-71-8 Dichlorodifluoromethane ND 6.0 ug/kg75-34-3 1,1-Dichloroethane ND 2.4 ug/kg107-06-2 1,2-Dichloroethane ND 2.4 ug/kg75-35-4 1,1-Dichloroethene ND 2.4 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.4 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.4 ug/kg78-87-5 1,2-Dichloropropane ND 2.4 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

128 of 397

MC48470

44.19

Page 161: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 6.0 ug/kg594-20-7 2,2-Dichloropropane ND 6.0 ug/kg563-58-6 1,1-Dichloropropene ND 6.0 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.4 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 2.4 ug/kg100-41-4 Ethylbenzene ND 2.4 ug/kg76-13-1 Freon 113 ND 6.0 ug/kg87-68-3 Hexachlorobutadiene ND 6.0 ug/kg591-78-6 2-Hexanone ND 6.0 ug/kg98-82-8 Isopropylbenzene ND 6.0 ug/kg99-87-6 p-Isopropyltoluene ND 6.0 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.4 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 6.0 ug/kg74-95-3 Methylene bromide ND 6.0 ug/kg75-09-2 Methylene chloride ND 2.4 ug/kg91-20-3 Naphthalene ND 6.0 ug/kg103-65-1 n-Propylbenzene ND 6.0 ug/kg100-42-5 Styrene ND 6.0 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.4 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 6.0 ug/kg127-18-4 Tetrachloroethene ND 2.4 ug/kg109-99-9 Tetrahydrofuran ND 12 ug/kg108-88-3 Toluene ND 6.0 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 12 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 6.0 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 6.0 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.4 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.4 ug/kg79-01-6 Trichloroethene ND 2.4 ug/kg75-69-4 Trichlorofluoromethane ND 2.4 ug/kg96-18-4 1,2,3-Trichloropropane ND 6.0 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 6.0 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 6.0 ug/kg75-01-4 Vinyl chloride ND 12 ug/kg

m,p-Xylene ND 2.4 ug/kg95-47-6 o-Xylene ND 2.4 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 156% b 176% b 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

129 of 397

MC48470

44.19

Page 162: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 108% 109% 65-129%460-00-4 4-Bromofluorobenzene 110% 104% 63-137%

(a) Confirmation run for internal standard areas.(b) Outside control limits. Associated target analytes are non-detect.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

130 of 397

MC48470

44.19

Page 163: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30645.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.2 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 260 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 530 ug/kg120-83-2 2,4-Dichlorophenol ND 530 ug/kg105-67-9 2,4-Dimethylphenol ND 530 ug/kg51-28-5 2,4-Dinitrophenol ND 530 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 530 ug/kg95-48-7 2-Methylphenol ND 530 ug/kg106-44-5 4-Methylphenol ND 530 ug/kg88-75-5 2-Nitrophenol ND 530 ug/kg100-02-7 4-Nitrophenol ND 530 ug/kg87-86-5 Pentachlorophenol a ND 530 ug/kg108-95-2 Phenol ND 260 ug/kg95-95-4 2,4,5-Trichlorophenol ND 530 ug/kg88-06-2 2,4,6-Trichlorophenol ND 530 ug/kg83-32-9 Acenaphthene ND 110 ug/kg208-96-8 Acenaphthylene ND 110 ug/kg62-53-3 Aniline ND 530 ug/kg120-12-7 Anthracene ND 110 ug/kg56-55-3 Benzo(a)anthracene ND 110 ug/kg50-32-8 Benzo(a)pyrene ND 260 ug/kg205-99-2 Benzo(b)fluoranthene ND 110 ug/kg191-24-2 Benzo(g,h,i)perylene ND 110 ug/kg207-08-9 Benzo(k)fluoranthene ND 110 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 260 ug/kg85-68-7 Butyl benzyl phthalate ND 260 ug/kg91-58-7 2-Chloronaphthalene ND 260 ug/kg106-47-8 4-Chloroaniline ND 530 ug/kg86-74-8 Carbazole ND 110 ug/kg218-01-9 Chrysene ND 110 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 260 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 260 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 260 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

131 of 397

MC48470

44.19

Page 164: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 260 ug/kg121-14-2 2,4-Dinitrotoluene ND 530 ug/kg606-20-2 2,6-Dinitrotoluene ND 530 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 530 ug/kg53-70-3 Dibenzo(a,h)anthracene ND 110 ug/kg132-64-9 Dibenzofuran ND 110 ug/kg84-74-2 Di-n-butyl phthalate ND 260 ug/kg117-84-0 Di-n-octyl phthalate ND 260 ug/kg84-66-2 Diethyl phthalate ND 260 ug/kg131-11-3 Dimethyl phthalate ND 260 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 260 ug/kg206-44-0 Fluoranthene ND 110 ug/kg86-73-7 Fluorene ND 110 ug/kg118-74-1 Hexachlorobenzene ND 260 ug/kg87-68-3 Hexachlorobutadiene ND 260 ug/kg77-47-4 Hexachlorocyclopentadiene ND 530 ug/kg67-72-1 Hexachloroethane ND 260 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene ND 260 ug/kg78-59-1 Isophorone ND 260 ug/kg91-57-6 2-Methylnaphthalene ND 110 ug/kg88-74-4 2-Nitroaniline ND 530 ug/kg99-09-2 3-Nitroaniline ND 530 ug/kg100-01-6 4-Nitroaniline ND 530 ug/kg91-20-3 Naphthalene ND 110 ug/kg98-95-3 Nitrobenzene ND 260 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 260 ug/kg86-30-6 N-Nitrosodiphenylamine ND 260 ug/kg82-68-8 Pentachloronitrobenzene ND 530 ug/kg85-01-8 Phenanthrene ND 110 ug/kg129-00-0 Pyrene ND 110 ug/kg110-86-1 Pyridine ND 530 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 530 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 260 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 77% 25-109%4165-62-2 Phenol-d5 82% 29-113%118-79-6 2,4,6-Tribromophenol 104% 20-141%4165-60-0 Nitrobenzene-d5 76% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

132 of 397

MC48470

44.19

Page 165: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 86% 34-118%1718-51-0 Terphenyl-d14 101% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

133 of 397

MC48470

44.19

Page 166: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53134.D 1 11/02/16 TA 10/28/16 OP49036 GBE2670Run #2

Initial Weight Final VolumeRun #1 20.7 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 51 ug/kg309-00-2 Aldrin ND 5.1 ug/kg319-84-6 alpha-BHC ND 5.1 ug/kg319-85-7 beta-BHC ND 5.1 ug/kg319-86-8 delta-BHC ND 5.1 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.1 ug/kg12789-03-6 Chlordane ND 51 ug/kg60-57-1 Dieldrin ND 5.1 ug/kg72-54-8 4,4'-DDD ND 5.1 ug/kg72-55-9 4,4'-DDE ND 5.1 ug/kg50-29-3 4,4'-DDT ND 5.1 ug/kg72-20-8 Endrin ND 5.1 ug/kg1031-07-8 Endosulfan sulfate ND 5.1 ug/kg7421-93-4 Endrin aldehyde ND 5.1 ug/kg959-98-8 Endosulfan-I ND 5.1 ug/kg33213-65-9 Endosulfan-II ND 5.1 ug/kg76-44-8 Heptachlor ND 5.1 ug/kg1024-57-3 Heptachlor epoxide ND 5.1 ug/kg72-43-5 Methoxychlor ND 5.1 ug/kg53494-70-5 Endrin ketone ND 5.1 ug/kg8001-35-2 Toxaphene ND 51 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 65% 10-143%877-09-8 Tetrachloro-m-xylene 70% 10-143%2051-24-3 Decachlorobiphenyl 35% 10-172%2051-24-3 Decachlorobiphenyl 56% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

134 of 397

MC48470

44.19

Page 167: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70198.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.7 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 26 ug/kg11104-28-2 Aroclor 1221 ND 26 ug/kg11141-16-5 Aroclor 1232 ND 26 ug/kg53469-21-9 Aroclor 1242 ND 26 ug/kg12672-29-6 Aroclor 1248 ND 26 ug/kg11097-69-1 Aroclor 1254 ND 26 ug/kg11096-82-5 Aroclor 1260 ND 26 ug/kg37324-23-5 Aroclor 1262 ND 26 ug/kg11100-14-4 Aroclor 1268 ND 26 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 77% 25-145%877-09-8 Tetrachloro-m-xylene 76% 25-145%2051-24-3 Decachlorobiphenyl 102% 25-179%2051-24-3 Decachlorobiphenyl 103% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

135 of 397

MC48470

44.19

Page 168: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5226.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.7 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 17 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 73% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

136 of 397

MC48470

44.19

Page 169: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 2.1 0.86 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Barium 36.5 4.3 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Cadmium <0.35 0.35 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Chromium 13.5 0.86 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Lead 8.6 0.86 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Mercury <0.032 0.032 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 2 SW846 7471B 4

Selenium <0.86 0.86 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Silver <0.43 0.43 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

(1) Instrument QC Batch: MA19577(2) Instrument QC Batch: MA19578(3) Prep QC Batch: MP26949(4) Prep QC Batch: MP26959

RL = Reporting Limit

137 of 397

MC48470

44.19

Page 170: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.6 1.6 mg/kg 1 10/27/16 21:41 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 94.2 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <53 53 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 7.1 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

138 of 397

MC48470

44.19

Page 171: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/0-2 Lab Sample ID: MC48470-10A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead 0.015 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

139 of 397

MC48470

44.20

Page 172: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81624.D 1 11/01/16 KP n/a n/a MSM2926Run #2

Initial Weight Final VolumeRun #1 5.75 g 5.0 mlRun #2

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 9.2 ug/kg107-13-1 Acrylonitrile ND 23 ug/kg71-43-2 Benzene ND 0.92 ug/kg108-86-1 Bromobenzene ND 4.6 ug/kg75-27-4 Bromodichloromethane ND 1.8 ug/kg75-25-2 Bromoform ND 1.8 ug/kg74-83-9 Bromomethane ND 9.2 ug/kg78-93-3 2-Butanone (MEK) ND 9.2 ug/kg104-51-8 n-Butylbenzene ND 4.6 ug/kg135-98-8 sec-Butylbenzene ND 4.6 ug/kg98-06-6 tert-Butylbenzene ND 4.6 ug/kg75-15-0 Carbon disulfide ND 4.6 ug/kg56-23-5 Carbon tetrachloride ND 1.8 ug/kg108-90-7 Chlorobenzene ND 1.8 ug/kg75-00-3 Chloroethane ND 9.2 ug/kg67-66-3 Chloroform ND 1.8 ug/kg74-87-3 Chloromethane ND 4.6 ug/kg95-49-8 o-Chlorotoluene ND 4.6 ug/kg106-43-4 p-Chlorotoluene ND 4.6 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 4.6 ug/kg124-48-1 Dibromochloromethane ND 4.6 ug/kg106-93-4 1,2-Dibromoethane ND 1.8 ug/kg95-50-1 1,2-Dichlorobenzene ND 1.8 ug/kg541-73-1 1,3-Dichlorobenzene ND 1.8 ug/kg106-46-7 1,4-Dichlorobenzene ND 1.8 ug/kg75-71-8 Dichlorodifluoromethane ND 4.6 ug/kg75-34-3 1,1-Dichloroethane ND 1.8 ug/kg107-06-2 1,2-Dichloroethane ND 1.8 ug/kg75-35-4 1,1-Dichloroethene ND 1.8 ug/kg156-59-2 cis-1,2-Dichloroethene ND 1.8 ug/kg156-60-5 trans-1,2-Dichloroethene ND 1.8 ug/kg78-87-5 1,2-Dichloropropane ND 1.8 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

140 of 397

MC48470

44.21

Page 173: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 4.6 ug/kg594-20-7 2,2-Dichloropropane ND 4.6 ug/kg563-58-6 1,1-Dichloropropene ND 4.6 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 1.8 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 1.8 ug/kg100-41-4 Ethylbenzene ND 1.8 ug/kg76-13-1 Freon 113 ND 4.6 ug/kg87-68-3 Hexachlorobutadiene ND 4.6 ug/kg591-78-6 2-Hexanone ND 4.6 ug/kg98-82-8 Isopropylbenzene ND 4.6 ug/kg99-87-6 p-Isopropyltoluene ND 4.6 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 1.8 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 4.6 ug/kg74-95-3 Methylene bromide ND 4.6 ug/kg75-09-2 Methylene chloride ND 1.8 ug/kg91-20-3 Naphthalene ND 4.6 ug/kg103-65-1 n-Propylbenzene ND 4.6 ug/kg100-42-5 Styrene ND 4.6 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 1.8 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 4.6 ug/kg127-18-4 Tetrachloroethene ND 1.8 ug/kg109-99-9 Tetrahydrofuran ND 9.2 ug/kg108-88-3 Toluene ND 4.6 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 9.2 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 4.6 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 4.6 ug/kg71-55-6 1,1,1-Trichloroethane ND 1.8 ug/kg79-00-5 1,1,2-Trichloroethane ND 1.8 ug/kg79-01-6 Trichloroethene ND 1.8 ug/kg75-69-4 Trichlorofluoromethane ND 1.8 ug/kg96-18-4 1,2,3-Trichloropropane ND 4.6 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 4.6 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 4.6 ug/kg75-01-4 Vinyl chloride ND 9.2 ug/kg

m,p-Xylene ND 1.8 ug/kg95-47-6 o-Xylene ND 1.8 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 160% a 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

141 of 397

MC48470

44.21

Page 174: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 110% 65-129%460-00-4 4-Bromofluorobenzene 97% 63-137%

(a) Outside control limits. Associated target analytes are non-detect.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

142 of 397

MC48470

44.21

Page 175: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30646.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.9 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 250 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 510 ug/kg120-83-2 2,4-Dichlorophenol ND 510 ug/kg105-67-9 2,4-Dimethylphenol ND 510 ug/kg51-28-5 2,4-Dinitrophenol ND 510 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 510 ug/kg95-48-7 2-Methylphenol ND 510 ug/kg106-44-5 4-Methylphenol ND 510 ug/kg88-75-5 2-Nitrophenol ND 510 ug/kg100-02-7 4-Nitrophenol ND 510 ug/kg87-86-5 Pentachlorophenol a ND 510 ug/kg108-95-2 Phenol ND 250 ug/kg95-95-4 2,4,5-Trichlorophenol ND 510 ug/kg88-06-2 2,4,6-Trichlorophenol ND 510 ug/kg83-32-9 Acenaphthene ND 100 ug/kg208-96-8 Acenaphthylene ND 100 ug/kg62-53-3 Aniline ND 510 ug/kg120-12-7 Anthracene ND 100 ug/kg56-55-3 Benzo(a)anthracene ND 100 ug/kg50-32-8 Benzo(a)pyrene ND 250 ug/kg205-99-2 Benzo(b)fluoranthene ND 100 ug/kg191-24-2 Benzo(g,h,i)perylene ND 100 ug/kg207-08-9 Benzo(k)fluoranthene ND 100 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 250 ug/kg85-68-7 Butyl benzyl phthalate ND 250 ug/kg91-58-7 2-Chloronaphthalene ND 250 ug/kg106-47-8 4-Chloroaniline ND 510 ug/kg86-74-8 Carbazole ND 100 ug/kg218-01-9 Chrysene ND 100 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 250 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 250 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 250 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

143 of 397

MC48470

44.21

Page 176: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 250 ug/kg121-14-2 2,4-Dinitrotoluene ND 510 ug/kg606-20-2 2,6-Dinitrotoluene ND 510 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 510 ug/kg53-70-3 Dibenzo(a,h)anthracene ND 100 ug/kg132-64-9 Dibenzofuran ND 100 ug/kg84-74-2 Di-n-butyl phthalate ND 250 ug/kg117-84-0 Di-n-octyl phthalate ND 250 ug/kg84-66-2 Diethyl phthalate ND 250 ug/kg131-11-3 Dimethyl phthalate ND 250 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 250 ug/kg206-44-0 Fluoranthene ND 100 ug/kg86-73-7 Fluorene ND 100 ug/kg118-74-1 Hexachlorobenzene ND 250 ug/kg87-68-3 Hexachlorobutadiene ND 250 ug/kg77-47-4 Hexachlorocyclopentadiene ND 510 ug/kg67-72-1 Hexachloroethane ND 250 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene ND 250 ug/kg78-59-1 Isophorone ND 250 ug/kg91-57-6 2-Methylnaphthalene ND 100 ug/kg88-74-4 2-Nitroaniline ND 510 ug/kg99-09-2 3-Nitroaniline ND 510 ug/kg100-01-6 4-Nitroaniline ND 510 ug/kg91-20-3 Naphthalene ND 100 ug/kg98-95-3 Nitrobenzene ND 250 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 250 ug/kg86-30-6 N-Nitrosodiphenylamine ND 250 ug/kg82-68-8 Pentachloronitrobenzene ND 510 ug/kg85-01-8 Phenanthrene ND 100 ug/kg129-00-0 Pyrene ND 100 ug/kg110-86-1 Pyridine ND 510 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 510 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 250 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 71% 25-109%4165-62-2 Phenol-d5 77% 29-113%118-79-6 2,4,6-Tribromophenol 103% 20-141%4165-60-0 Nitrobenzene-d5 71% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

144 of 397

MC48470

44.21

Page 177: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 84% 34-118%1718-51-0 Terphenyl-d14 102% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

145 of 397

MC48470

44.21

Page 178: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53133.D 1 11/02/16 TA 10/28/16 OP49036 GBE2670Run #2

Initial Weight Final VolumeRun #1 20.8 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 51 ug/kg309-00-2 Aldrin ND 5.1 ug/kg319-84-6 alpha-BHC ND 5.1 ug/kg319-85-7 beta-BHC ND 5.1 ug/kg319-86-8 delta-BHC ND 5.1 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.1 ug/kg12789-03-6 Chlordane ND 51 ug/kg60-57-1 Dieldrin ND 5.1 ug/kg72-54-8 4,4'-DDD ND 5.1 ug/kg72-55-9 4,4'-DDE ND 5.1 ug/kg50-29-3 4,4'-DDT ND 5.1 ug/kg72-20-8 Endrin ND 5.1 ug/kg1031-07-8 Endosulfan sulfate ND 5.1 ug/kg7421-93-4 Endrin aldehyde ND 5.1 ug/kg959-98-8 Endosulfan-I ND 5.1 ug/kg33213-65-9 Endosulfan-II ND 5.1 ug/kg76-44-8 Heptachlor ND 5.1 ug/kg1024-57-3 Heptachlor epoxide ND 5.1 ug/kg72-43-5 Methoxychlor ND 5.1 ug/kg53494-70-5 Endrin ketone ND 5.1 ug/kg8001-35-2 Toxaphene ND 51 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 70% 10-143%877-09-8 Tetrachloro-m-xylene 73% 10-143%2051-24-3 Decachlorobiphenyl 36% 10-172%2051-24-3 Decachlorobiphenyl 57% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

146 of 397

MC48470

44.21

Page 179: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70199.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.8 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 26 ug/kg11104-28-2 Aroclor 1221 ND 26 ug/kg11141-16-5 Aroclor 1232 ND 26 ug/kg53469-21-9 Aroclor 1242 ND 26 ug/kg12672-29-6 Aroclor 1248 ND 26 ug/kg11097-69-1 Aroclor 1254 ND 26 ug/kg11096-82-5 Aroclor 1260 ND 26 ug/kg37324-23-5 Aroclor 1262 ND 26 ug/kg11100-14-4 Aroclor 1268 ND 26 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 85% 25-145%877-09-8 Tetrachloro-m-xylene 85% 25-145%2051-24-3 Decachlorobiphenyl 119% 25-179%2051-24-3 Decachlorobiphenyl 119% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

147 of 397

MC48470

44.21

Page 180: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5227.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.6 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 17 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 76% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

148 of 397

MC48470

44.21

Page 181: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 2.0 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Barium 33.3 4.4 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Cadmium <0.35 0.35 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Chromium 11.4 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Lead 2.3 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Mercury <0.033 0.033 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 2 SW846 7471B 4

Selenium <0.88 0.88 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

Silver <0.44 0.44 mg/kg 1 10/28/16 10/31/16 EAL SW846 6010C 1 SW846 3050B 3

(1) Instrument QC Batch: MA19577(2) Instrument QC Batch: MA19578(3) Prep QC Batch: MP26949(4) Prep QC Batch: MP26959

RL = Reporting Limit

149 of 397

MC48470

44.21

Page 182: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.6 1.6 mg/kg 1 10/27/16 21:41 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 94.2 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <52 52 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 5.7 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

150 of 397

MC48470

44.21

Page 183: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-5/5-7 Lab Sample ID: MC48470-11A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 94.2 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <0.010 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

151 of 397

MC48470

44.22

Page 184: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: DUP Lab Sample ID: MC48470-12 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81646.D 1 11/02/16 KP n/a n/a MSM2927Run #2 a M81625.D 1 11/01/16 KP n/a n/a MSM2926

Initial Weight Final VolumeRun #1 5.14 g 5.0 mlRun #2 3.79 g 5.0 ml

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/kg107-13-1 Acrylonitrile ND 26 ug/kg71-43-2 Benzene ND 1.0 ug/kg108-86-1 Bromobenzene ND 5.2 ug/kg75-27-4 Bromodichloromethane ND 2.1 ug/kg75-25-2 Bromoform ND 2.1 ug/kg74-83-9 Bromomethane ND 10 ug/kg78-93-3 2-Butanone (MEK) ND 10 ug/kg104-51-8 n-Butylbenzene ND 5.2 ug/kg135-98-8 sec-Butylbenzene ND 5.2 ug/kg98-06-6 tert-Butylbenzene ND 5.2 ug/kg75-15-0 Carbon disulfide ND 5.2 ug/kg56-23-5 Carbon tetrachloride ND 2.1 ug/kg108-90-7 Chlorobenzene ND 2.1 ug/kg75-00-3 Chloroethane ND 10 ug/kg67-66-3 Chloroform ND 2.1 ug/kg74-87-3 Chloromethane ND 5.2 ug/kg95-49-8 o-Chlorotoluene ND 5.2 ug/kg106-43-4 p-Chlorotoluene ND 5.2 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 5.2 ug/kg124-48-1 Dibromochloromethane ND 5.2 ug/kg106-93-4 1,2-Dibromoethane ND 2.1 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.1 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.1 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.1 ug/kg75-71-8 Dichlorodifluoromethane ND 5.2 ug/kg75-34-3 1,1-Dichloroethane ND 2.1 ug/kg107-06-2 1,2-Dichloroethane ND 2.1 ug/kg75-35-4 1,1-Dichloroethene ND 2.1 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.1 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.1 ug/kg78-87-5 1,2-Dichloropropane ND 2.1 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

152 of 397

MC48470

44.23

Page 185: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: DUP Lab Sample ID: MC48470-12 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 5.2 ug/kg594-20-7 2,2-Dichloropropane ND 5.2 ug/kg563-58-6 1,1-Dichloropropene ND 5.2 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.1 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 2.1 ug/kg100-41-4 Ethylbenzene ND 2.1 ug/kg76-13-1 Freon 113 ND 5.2 ug/kg87-68-3 Hexachlorobutadiene ND 5.2 ug/kg591-78-6 2-Hexanone ND 5.2 ug/kg98-82-8 Isopropylbenzene ND 5.2 ug/kg99-87-6 p-Isopropyltoluene ND 5.2 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.1 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.2 ug/kg74-95-3 Methylene bromide ND 5.2 ug/kg75-09-2 Methylene chloride ND 2.1 ug/kg91-20-3 Naphthalene ND 5.2 ug/kg103-65-1 n-Propylbenzene ND 5.2 ug/kg100-42-5 Styrene ND 5.2 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.1 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 5.2 ug/kg127-18-4 Tetrachloroethene ND 2.1 ug/kg109-99-9 Tetrahydrofuran ND 10 ug/kg108-88-3 Toluene ND 5.2 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 10 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 5.2 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 5.2 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.1 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.1 ug/kg79-01-6 Trichloroethene ND 2.1 ug/kg75-69-4 Trichlorofluoromethane ND 2.1 ug/kg96-18-4 1,2,3-Trichloropropane ND 5.2 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 5.2 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 5.2 ug/kg75-01-4 Vinyl chloride ND 10 ug/kg

m,p-Xylene ND 2.1 ug/kg95-47-6 o-Xylene ND 2.1 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 166% b 176% b 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

153 of 397

MC48470

44.23

Page 186: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: DUP Lab Sample ID: MC48470-12 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 109% 113% 65-129%460-00-4 4-Bromofluorobenzene 91% 94% 63-137%

(a) Confirmation run for surrogate recoveries.(b) Outside control limits. Associated target analytes are non-detect.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

154 of 397

MC48470

44.23

Page 187: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: DUP Lab Sample ID: MC48470-12 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30647.D 1 11/01/16 MR 10/28/16 OP49038 MSW1243Run #2

Initial Weight Final VolumeRun #1 20.3 g 1.0 mlRun #2

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 260 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 530 ug/kg120-83-2 2,4-Dichlorophenol ND 530 ug/kg105-67-9 2,4-Dimethylphenol ND 530 ug/kg51-28-5 2,4-Dinitrophenol ND 530 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 530 ug/kg95-48-7 2-Methylphenol ND 530 ug/kg106-44-5 4-Methylphenol ND 530 ug/kg88-75-5 2-Nitrophenol ND 530 ug/kg100-02-7 4-Nitrophenol ND 530 ug/kg87-86-5 Pentachlorophenol a ND 530 ug/kg108-95-2 Phenol ND 260 ug/kg95-95-4 2,4,5-Trichlorophenol ND 530 ug/kg88-06-2 2,4,6-Trichlorophenol ND 530 ug/kg83-32-9 Acenaphthene ND 110 ug/kg208-96-8 Acenaphthylene ND 110 ug/kg62-53-3 Aniline ND 530 ug/kg120-12-7 Anthracene ND 110 ug/kg56-55-3 Benzo(a)anthracene ND 110 ug/kg50-32-8 Benzo(a)pyrene ND 260 ug/kg205-99-2 Benzo(b)fluoranthene ND 110 ug/kg191-24-2 Benzo(g,h,i)perylene ND 110 ug/kg207-08-9 Benzo(k)fluoranthene ND 110 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 260 ug/kg85-68-7 Butyl benzyl phthalate ND 260 ug/kg91-58-7 2-Chloronaphthalene ND 260 ug/kg106-47-8 4-Chloroaniline ND 530 ug/kg86-74-8 Carbazole ND 110 ug/kg218-01-9 Chrysene ND 110 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 260 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 260 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 260 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

155 of 397

MC48470

44.23

Page 188: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: DUP Lab Sample ID: MC48470-12 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 260 ug/kg121-14-2 2,4-Dinitrotoluene ND 530 ug/kg606-20-2 2,6-Dinitrotoluene ND 530 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 530 ug/kg53-70-3 Dibenzo(a,h)anthracene ND 110 ug/kg132-64-9 Dibenzofuran ND 110 ug/kg84-74-2 Di-n-butyl phthalate ND 260 ug/kg117-84-0 Di-n-octyl phthalate ND 260 ug/kg84-66-2 Diethyl phthalate ND 260 ug/kg131-11-3 Dimethyl phthalate ND 260 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 260 ug/kg206-44-0 Fluoranthene ND 110 ug/kg86-73-7 Fluorene ND 110 ug/kg118-74-1 Hexachlorobenzene ND 260 ug/kg87-68-3 Hexachlorobutadiene ND 260 ug/kg77-47-4 Hexachlorocyclopentadiene ND 530 ug/kg67-72-1 Hexachloroethane ND 260 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene ND 260 ug/kg78-59-1 Isophorone ND 260 ug/kg91-57-6 2-Methylnaphthalene ND 110 ug/kg88-74-4 2-Nitroaniline ND 530 ug/kg99-09-2 3-Nitroaniline ND 530 ug/kg100-01-6 4-Nitroaniline ND 530 ug/kg91-20-3 Naphthalene ND 110 ug/kg98-95-3 Nitrobenzene ND 260 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 260 ug/kg86-30-6 N-Nitrosodiphenylamine ND 260 ug/kg82-68-8 Pentachloronitrobenzene ND 530 ug/kg85-01-8 Phenanthrene ND 110 ug/kg129-00-0 Pyrene ND 110 ug/kg110-86-1 Pyridine ND 530 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 530 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 260 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 85% 25-109%4165-62-2 Phenol-d5 89% 29-113%118-79-6 2,4,6-Tribromophenol 110% 20-141%4165-60-0 Nitrobenzene-d5 84% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

156 of 397

MC48470

44.23

Page 189: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: DUP Lab Sample ID: MC48470-12 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 94% 34-118%1718-51-0 Terphenyl-d14 111% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

157 of 397

MC48470

44.23

Page 190: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-12 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53132.D 1 11/02/16 TA 10/28/16 OP49036 GBE2670Run #2

Initial Weight Final VolumeRun #1 20.2 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 53 ug/kg309-00-2 Aldrin ND 5.3 ug/kg319-84-6 alpha-BHC ND 5.3 ug/kg319-85-7 beta-BHC ND 5.3 ug/kg319-86-8 delta-BHC ND 5.3 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.3 ug/kg12789-03-6 Chlordane ND 53 ug/kg60-57-1 Dieldrin ND 5.3 ug/kg72-54-8 4,4'-DDD ND 5.3 ug/kg72-55-9 4,4'-DDE ND 5.3 ug/kg50-29-3 4,4'-DDT ND 5.3 ug/kg72-20-8 Endrin ND 5.3 ug/kg1031-07-8 Endosulfan sulfate ND 5.3 ug/kg7421-93-4 Endrin aldehyde ND 5.3 ug/kg959-98-8 Endosulfan-I ND 5.3 ug/kg33213-65-9 Endosulfan-II ND 5.3 ug/kg76-44-8 Heptachlor ND 5.3 ug/kg1024-57-3 Heptachlor epoxide ND 5.3 ug/kg72-43-5 Methoxychlor ND 5.3 ug/kg53494-70-5 Endrin ketone ND 5.3 ug/kg8001-35-2 Toxaphene ND 53 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 69% 10-143%877-09-8 Tetrachloro-m-xylene 75% 10-143%2051-24-3 Decachlorobiphenyl 40% 10-172%2051-24-3 Decachlorobiphenyl 65% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

158 of 397

MC48470

44.23

Page 191: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-12 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70200.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.2 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 26 ug/kg11104-28-2 Aroclor 1221 ND 26 ug/kg11141-16-5 Aroclor 1232 ND 26 ug/kg53469-21-9 Aroclor 1242 ND 26 ug/kg12672-29-6 Aroclor 1248 ND 26 ug/kg11097-69-1 Aroclor 1254 ND 26 ug/kg11096-82-5 Aroclor 1260 ND 26 ug/kg37324-23-5 Aroclor 1262 ND 26 ug/kg11100-14-4 Aroclor 1268 ND 26 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 84% 25-145%877-09-8 Tetrachloro-m-xylene 82% 25-145%2051-24-3 Decachlorobiphenyl 113% 25-179%2051-24-3 Decachlorobiphenyl 113% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

159 of 397

MC48470

44.23

Page 192: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-12 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5228.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.4 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 17 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 75% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

160 of 397

MC48470

44.23

Page 193: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-12 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 1.9 0.85 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Barium 35.6 4.3 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Cadmium <0.34 0.34 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Chromium 11.5 0.85 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Lead 2.6 0.85 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Mercury <0.033 0.033 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 1 SW846 7471B 3

Selenium <0.85 0.85 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Silver <0.43 0.43 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

(1) Instrument QC Batch: MA19578(2) Instrument QC Batch: MA19584(3) Prep QC Batch: MP26959(4) Prep QC Batch: MP26965

RL = Reporting Limit

161 of 397

MC48470

44.23

Page 194: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-12 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.6 1.6 mg/kg 1 10/27/16 21:41 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 93.8 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <53 53 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 5.8 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

162 of 397

MC48470

44.23

Page 195: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-12A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 93.8 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <0.010 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

163 of 397

MC48470

44.24

Page 196: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 M81626.D 1 11/01/16 KP n/a n/a MSM2926Run #2 a M81647.D 1 11/02/16 KP n/a n/a MSM2927

Initial Weight Final VolumeRun #1 4.78 g 5.0 mlRun #2 5.55 g 5.0 ml

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 12 ug/kg107-13-1 Acrylonitrile ND 31 ug/kg71-43-2 Benzene ND 1.2 ug/kg108-86-1 Bromobenzene ND 6.1 ug/kg75-27-4 Bromodichloromethane ND 2.5 ug/kg75-25-2 Bromoform ND 2.5 ug/kg74-83-9 Bromomethane ND 12 ug/kg78-93-3 2-Butanone (MEK) ND 12 ug/kg104-51-8 n-Butylbenzene ND 6.1 ug/kg135-98-8 sec-Butylbenzene ND 6.1 ug/kg98-06-6 tert-Butylbenzene ND 6.1 ug/kg75-15-0 Carbon disulfide ND 6.1 ug/kg56-23-5 Carbon tetrachloride ND 2.5 ug/kg108-90-7 Chlorobenzene ND 2.5 ug/kg75-00-3 Chloroethane ND 12 ug/kg67-66-3 Chloroform ND 2.5 ug/kg74-87-3 Chloromethane ND 6.1 ug/kg95-49-8 o-Chlorotoluene ND 6.1 ug/kg106-43-4 p-Chlorotoluene ND 6.1 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 6.1 ug/kg124-48-1 Dibromochloromethane ND 6.1 ug/kg106-93-4 1,2-Dibromoethane ND 2.5 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.5 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.5 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.5 ug/kg75-71-8 Dichlorodifluoromethane ND 6.1 ug/kg75-34-3 1,1-Dichloroethane ND 2.5 ug/kg107-06-2 1,2-Dichloroethane ND 2.5 ug/kg75-35-4 1,1-Dichloroethene ND 2.5 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.5 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.5 ug/kg78-87-5 1,2-Dichloropropane ND 2.5 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

164 of 397

MC48470

44.25

Page 197: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 6.1 ug/kg594-20-7 2,2-Dichloropropane ND 6.1 ug/kg563-58-6 1,1-Dichloropropene ND 6.1 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.5 ug/kg10061-02-6 trans-1,3-Dichloropropene ND 2.5 ug/kg100-41-4 Ethylbenzene ND 2.5 ug/kg76-13-1 Freon 113 ND 6.1 ug/kg87-68-3 Hexachlorobutadiene ND 6.1 ug/kg591-78-6 2-Hexanone ND 6.1 ug/kg98-82-8 Isopropylbenzene ND 6.1 ug/kg99-87-6 p-Isopropyltoluene ND 6.1 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.5 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 6.1 ug/kg74-95-3 Methylene bromide ND 6.1 ug/kg75-09-2 Methylene chloride ND 2.5 ug/kg91-20-3 Naphthalene ND 6.1 ug/kg103-65-1 n-Propylbenzene ND 6.1 ug/kg100-42-5 Styrene ND 6.1 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.5 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 6.1 ug/kg127-18-4 Tetrachloroethene ND 2.5 ug/kg109-99-9 Tetrahydrofuran ND 12 ug/kg108-88-3 Toluene ND 6.1 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 12 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 6.1 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 6.1 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.5 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.5 ug/kg79-01-6 Trichloroethene ND 2.5 ug/kg75-69-4 Trichlorofluoromethane ND 2.5 ug/kg96-18-4 1,2,3-Trichloropropane ND 6.1 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 6.1 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 6.1 ug/kg75-01-4 Vinyl chloride ND 12 ug/kg

m,p-Xylene ND 2.5 ug/kg95-47-6 o-Xylene ND 2.5 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 165% b 163% b 65-141%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

165 of 397

MC48470

44.25

Page 198: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8260C Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 110% 108% 65-129%460-00-4 4-Bromofluorobenzene 121% 118% 63-137%

(a) Confirmation run for internal standard areas.(b) Outside control limits. Associated target analytes are non-detect.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

166 of 397

MC48470

44.25

Page 199: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30648.D 1 11/02/16 MR 10/28/16 OP49038 MSW1243Run #2 W30672.D 5 11/02/16 MR 10/28/16 OP49038 MSW1244

Initial Weight Final VolumeRun #1 20.6 g 1.0 mlRun #2 20.6 g 1.0 ml

ABN RCP List

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 280 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 570 ug/kg120-83-2 2,4-Dichlorophenol ND 570 ug/kg105-67-9 2,4-Dimethylphenol ND 570 ug/kg51-28-5 2,4-Dinitrophenol ND 570 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 570 ug/kg95-48-7 2-Methylphenol ND 570 ug/kg106-44-5 4-Methylphenol ND 570 ug/kg88-75-5 2-Nitrophenol ND 570 ug/kg100-02-7 4-Nitrophenol ND 570 ug/kg87-86-5 Pentachlorophenol a ND 570 ug/kg108-95-2 Phenol ND 280 ug/kg95-95-4 2,4,5-Trichlorophenol ND 570 ug/kg88-06-2 2,4,6-Trichlorophenol ND 570 ug/kg83-32-9 Acenaphthene 119 110 ug/kg208-96-8 Acenaphthylene 1530 110 ug/kg62-53-3 Aniline ND 570 ug/kg120-12-7 Anthracene 838 110 ug/kg56-55-3 Benzo(a)anthracene 3460 110 ug/kg50-32-8 Benzo(a)pyrene 3850 280 ug/kg205-99-2 Benzo(b)fluoranthene 3970 110 ug/kg191-24-2 Benzo(g,h,i)perylene 2380 110 ug/kg207-08-9 Benzo(k)fluoranthene 3260 110 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 280 ug/kg85-68-7 Butyl benzyl phthalate ND 280 ug/kg91-58-7 2-Chloronaphthalene ND 280 ug/kg106-47-8 4-Chloroaniline ND 570 ug/kg86-74-8 Carbazole 573 110 ug/kg218-01-9 Chrysene 5390 110 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 280 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 280 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 280 ug/kg

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

167 of 397

MC48470

44.25

Page 200: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Compound Result RL Units Q

7005-72-3 4-Chlorophenyl phenyl ether ND 280 ug/kg121-14-2 2,4-Dinitrotoluene ND 570 ug/kg606-20-2 2,6-Dinitrotoluene ND 570 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 570 ug/kg53-70-3 Dibenzo(a,h)anthracene 660 110 ug/kg132-64-9 Dibenzofuran 129 110 ug/kg84-74-2 Di-n-butyl phthalate ND 280 ug/kg117-84-0 Di-n-octyl phthalate ND 280 ug/kg84-66-2 Diethyl phthalate ND 280 ug/kg131-11-3 Dimethyl phthalate ND 280 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 280 ug/kg206-44-0 Fluoranthene 10500 b 570 ug/kg86-73-7 Fluorene 316 110 ug/kg118-74-1 Hexachlorobenzene ND 280 ug/kg87-68-3 Hexachlorobutadiene ND 280 ug/kg77-47-4 Hexachlorocyclopentadiene ND 570 ug/kg67-72-1 Hexachloroethane ND 280 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene 2300 280 ug/kg78-59-1 Isophorone ND 280 ug/kg91-57-6 2-Methylnaphthalene 137 110 ug/kg88-74-4 2-Nitroaniline ND 570 ug/kg99-09-2 3-Nitroaniline ND 570 ug/kg100-01-6 4-Nitroaniline ND 570 ug/kg91-20-3 Naphthalene 170 110 ug/kg98-95-3 Nitrobenzene ND 280 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 280 ug/kg86-30-6 N-Nitrosodiphenylamine ND 280 ug/kg82-68-8 Pentachloronitrobenzene ND 570 ug/kg85-01-8 Phenanthrene 7470 110 ug/kg129-00-0 Pyrene 10600 b 570 ug/kg110-86-1 Pyridine ND 570 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 570 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 280 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 79% 81% 25-109%4165-62-2 Phenol-d5 81% 88% 29-113%118-79-6 2,4,6-Tribromophenol 102% 94% 20-141%4165-60-0 Nitrobenzene-d5 80% 84% 27-115%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

168 of 397

MC48470

44.25

Page 201: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8270D SW846 3546 Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

321-60-8 2-Fluorobiphenyl 89% 94% 34-118%1718-51-0 Terphenyl-d14 102% 101% 42-139%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

(b) Result is from Run# 2

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

169 of 397

MC48470

44.25

Page 202: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8081B SW846 3546 Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53130.D 1 11/02/16 TA 10/28/16 OP49036 GBE2670Run #2

Initial Weight Final VolumeRun #1 20.6 g 10.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 57 ug/kg309-00-2 Aldrin ND 5.7 ug/kg319-84-6 alpha-BHC ND 5.7 ug/kg319-85-7 beta-BHC ND 5.7 ug/kg319-86-8 delta-BHC ND 5.7 ug/kg58-89-9 gamma-BHC (Lindane) ND 5.7 ug/kg12789-03-6 Chlordane ND 57 ug/kg60-57-1 Dieldrin ND 5.7 ug/kg72-54-8 4,4'-DDD ND 5.7 ug/kg72-55-9 4,4'-DDE ND 5.7 ug/kg50-29-3 4,4'-DDT 30.8 5.7 ug/kg72-20-8 Endrin ND 5.7 ug/kg1031-07-8 Endosulfan sulfate ND 5.7 ug/kg7421-93-4 Endrin aldehyde ND 5.7 ug/kg959-98-8 Endosulfan-I ND 5.7 ug/kg33213-65-9 Endosulfan-II ND 5.7 ug/kg76-44-8 Heptachlor ND 5.7 ug/kg1024-57-3 Heptachlor epoxide ND 5.7 ug/kg72-43-5 Methoxychlor ND 5.7 ug/kg53494-70-5 Endrin ketone ND 5.7 ug/kg8001-35-2 Toxaphene ND 57 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 47% 10-143%877-09-8 Tetrachloro-m-xylene 52% 10-143%2051-24-3 Decachlorobiphenyl 78% 10-172%2051-24-3 Decachlorobiphenyl 120% 10-172%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

170 of 397

MC48470

44.25

Page 203: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: SW846 8082A SW846 3546 Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BB70201.D 1 11/02/16 TA 10/28/16 OP49033 GBB3705Run #2

Initial Weight Final VolumeRun #1 20.6 g 10.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 29 ug/kg11104-28-2 Aroclor 1221 ND 29 ug/kg11141-16-5 Aroclor 1232 ND 29 ug/kg53469-21-9 Aroclor 1242 ND 29 ug/kg12672-29-6 Aroclor 1248 ND 29 ug/kg11097-69-1 Aroclor 1254 ND 29 ug/kg11096-82-5 Aroclor 1260 51.0 29 ug/kg37324-23-5 Aroclor 1262 ND 29 ug/kg11100-14-4 Aroclor 1268 ND 29 ug/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 67% 25-145%877-09-8 Tetrachloro-m-xylene 62% 25-145%2051-24-3 Decachlorobiphenyl 118% 25-179%2051-24-3 Decachlorobiphenyl 110% 25-179%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

171 of 397

MC48470

44.25

Page 204: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3546 Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 CF5233.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332Run #2

Initial Weight Final VolumeRun #1 15.2 g 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) 338 19 mg/kg

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 72% 50-137%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

172 of 397

MC48470

44.25

Page 205: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 3.7 0.95 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Barium 38.8 4.7 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Cadmium <0.38 0.38 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Chromium 24.5 0.95 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Lead 70.4 0.95 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Mercury 0.13 0.036 mg/kg 1 10/31/16 11/01/16 EAL SW846 7471B 1 SW846 7471B 3

Selenium <0.95 0.95 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

Silver <0.47 0.47 mg/kg 1 11/01/16 11/02/16 EAL SW846 6010C 2 SW846 3050B 4

(1) Instrument QC Batch: MA19578(2) Instrument QC Batch: MA19584(3) Prep QC Batch: MP26959(4) Prep QC Batch: MP26965

RL = Reporting Limit

173 of 397

MC48470

44.25

Page 206: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13 Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

General Chemistry

Analyte Result RL Units DF Analyzed By Method

Cyanide Reactivity <1.8 1.8 mg/kg 1 10/27/16 21:41 CF SW846 CHAP7

Ignitability (Flashpoint) >230 Deg. F 1 11/01/16 HS SW846 1020

Solids, Percent 85.2 % 1 10/27/16 EAL SM 2540G-97 MOD

Sulfide Reactivity <59 59 mg/kg 1 10/27/16 CF SW846 CHAP7

pH 6.8 su 1 10/31/16 16:12 EL SW846 9045D

RL = Reporting Limit

174 of 397

MC48470

44.25

Page 207: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: B-1/0-2 Lab Sample ID: MC48470-13A Date Sampled: 10/25/16 Matrix: SO - Soil Date Received: 10/26/16

Percent Solids: 85.2 Project: Bridge 00488, Route 66, Windham, CT

Metals Analysis, TCLP Leachate SW846 1311

Analyte Result HW# MCL RL Units DF Prep Analyzed By Method Prep Method

Arsenic <0.010 D004 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <0.50 D005 100 0.50 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <0.0040 D006 1.0 0.0040 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <0.010 D007 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Lead 0.024 D008 5.0 0.010 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.00020 D009 0.20 0.00020mg/l 1 10/28/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <0.025 D010 1.0 0.025 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <0.0050 D011 5.0 0.0050 mg/l 1 10/28/16 11/02/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19574(2) Instrument QC Batch: MA19585(3) Prep QC Batch: MP26951(4) Prep QC Batch: MP26953

RL = Reporting LimitMCL = Maximum Contamination Level (40 CFR 261 6/96)

175 of 397

MC48470

44.26

Page 208: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: TRIP BLANK Lab Sample ID: MC48470-14 Date Sampled: 10/25/16 Matrix: AQ - Trip Blank Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 N105976.D 1 11/01/16 CB n/a n/a MSN3894Run #2

Purge VolumeRun #1 5.0 mlRun #2

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/l107-13-1 Acrylonitrile ND 5.0 ug/l71-43-2 Benzene ND 0.50 ug/l108-86-1 Bromobenzene ND 5.0 ug/l75-27-4 Bromodichloromethane ND 1.0 ug/l75-25-2 Bromoform ND 1.0 ug/l74-83-9 Bromomethane a ND 2.0 ug/l78-93-3 2-Butanone (MEK) ND 10 ug/l104-51-8 n-Butylbenzene ND 5.0 ug/l135-98-8 sec-Butylbenzene ND 5.0 ug/l98-06-6 tert-Butylbenzene ND 5.0 ug/l75-15-0 Carbon disulfide ND 5.0 ug/l56-23-5 Carbon tetrachloride ND 1.0 ug/l108-90-7 Chlorobenzene ND 1.0 ug/l75-00-3 Chloroethane ND 2.0 ug/l67-66-3 Chloroform ND 1.0 ug/l74-87-3 Chloromethane a ND 2.0 ug/l95-49-8 o-Chlorotoluene ND 5.0 ug/l106-43-4 p-Chlorotoluene ND 5.0 ug/l96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 ug/l124-48-1 Dibromochloromethane ND 1.0 ug/l106-93-4 1,2-Dibromoethane ND 1.0 ug/l95-50-1 1,2-Dichlorobenzene ND 1.0 ug/l541-73-1 1,3-Dichlorobenzene ND 1.0 ug/l106-46-7 1,4-Dichlorobenzene ND 1.0 ug/l75-71-8 Dichlorodifluoromethane ND 2.0 ug/l75-34-3 1,1-Dichloroethane ND 1.0 ug/l107-06-2 1,2-Dichloroethane ND 1.0 ug/l75-35-4 1,1-Dichloroethene ND 1.0 ug/l156-59-2 cis-1,2-Dichloroethene ND 1.0 ug/l156-60-5 trans-1,2-Dichloroethene ND 1.0 ug/l78-87-5 1,2-Dichloropropane ND 2.0 ug/l

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

176 of 397

MC48470

44.27

Page 209: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: TRIP BLANK Lab Sample ID: MC48470-14 Date Sampled: 10/25/16 Matrix: AQ - Trip Blank Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 5.0 ug/l594-20-7 2,2-Dichloropropane ND 5.0 ug/l563-58-6 1,1-Dichloropropene ND 5.0 ug/l10061-01-5 cis-1,3-Dichloropropene ND 0.50 ug/l10061-02-6 trans-1,3-Dichloropropene ND 0.50 ug/l100-41-4 Ethylbenzene ND 1.0 ug/l76-13-1 Freon 113 ND 5.0 ug/l87-68-3 Hexachlorobutadiene ND 5.0 ug/l591-78-6 2-Hexanone ND 10 ug/l98-82-8 Isopropylbenzene ND 5.0 ug/l99-87-6 p-Isopropyltoluene ND 5.0 ug/l1634-04-4 Methyl Tert Butyl Ether ND 1.0 ug/l108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.0 ug/l74-95-3 Methylene bromide ND 5.0 ug/l75-09-2 Methylene chloride ND 2.0 ug/l91-20-3 Naphthalene ND 5.0 ug/l103-65-1 n-Propylbenzene ND 5.0 ug/l100-42-5 Styrene ND 5.0 ug/l630-20-6 1,1,1,2-Tetrachloroethane ND 1.0 ug/l79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 ug/l127-18-4 Tetrachloroethene ND 1.0 ug/l109-99-9 Tetrahydrofuran a ND 10 ug/l108-88-3 Toluene ND 1.0 ug/l110-57-6 Trans-1,4-Dichloro-2-Butene ND 5.0 ug/l87-61-6 1,2,3-Trichlorobenzene ND 5.0 ug/l120-82-1 1,2,4-Trichlorobenzene ND 5.0 ug/l71-55-6 1,1,1-Trichloroethane ND 1.0 ug/l79-00-5 1,1,2-Trichloroethane ND 1.0 ug/l79-01-6 Trichloroethene ND 1.0 ug/l75-69-4 Trichlorofluoromethane ND 1.0 ug/l96-18-4 1,2,3-Trichloropropane ND 5.0 ug/l95-63-6 1,2,4-Trimethylbenzene ND 5.0 ug/l108-67-8 1,3,5-Trimethylbenzene ND 5.0 ug/l75-01-4 Vinyl chloride a ND 2.0 ug/l

m,p-Xylene ND 1.0 ug/l95-47-6 o-Xylene ND 1.0 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 99% 76-129%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

177 of 397

MC48470

44.27

Page 210: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: TRIP BLANK Lab Sample ID: MC48470-14 Date Sampled: 10/25/16 Matrix: AQ - Trip Blank Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 101% 83-114%460-00-4 4-Bromofluorobenzene 97% 75-124%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

178 of 397

MC48470

44.27

Page 211: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: MW/B-4 Lab Sample ID: MC48470-15 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 N105979.D 1 11/01/16 CB n/a n/a MSN3894Run #2

Purge VolumeRun #1 5.0 mlRun #2

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/l107-13-1 Acrylonitrile ND 5.0 ug/l71-43-2 Benzene ND 0.50 ug/l108-86-1 Bromobenzene ND 5.0 ug/l75-27-4 Bromodichloromethane ND 1.0 ug/l75-25-2 Bromoform ND 1.0 ug/l74-83-9 Bromomethane a ND 2.0 ug/l78-93-3 2-Butanone (MEK) ND 10 ug/l104-51-8 n-Butylbenzene ND 5.0 ug/l135-98-8 sec-Butylbenzene ND 5.0 ug/l98-06-6 tert-Butylbenzene ND 5.0 ug/l75-15-0 Carbon disulfide ND 5.0 ug/l56-23-5 Carbon tetrachloride ND 1.0 ug/l108-90-7 Chlorobenzene ND 1.0 ug/l75-00-3 Chloroethane ND 2.0 ug/l67-66-3 Chloroform ND 1.0 ug/l74-87-3 Chloromethane a ND 2.0 ug/l95-49-8 o-Chlorotoluene ND 5.0 ug/l106-43-4 p-Chlorotoluene ND 5.0 ug/l96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 ug/l124-48-1 Dibromochloromethane ND 1.0 ug/l106-93-4 1,2-Dibromoethane ND 1.0 ug/l95-50-1 1,2-Dichlorobenzene ND 1.0 ug/l541-73-1 1,3-Dichlorobenzene ND 1.0 ug/l106-46-7 1,4-Dichlorobenzene ND 1.0 ug/l75-71-8 Dichlorodifluoromethane ND 2.0 ug/l75-34-3 1,1-Dichloroethane ND 1.0 ug/l107-06-2 1,2-Dichloroethane ND 1.0 ug/l75-35-4 1,1-Dichloroethene ND 1.0 ug/l156-59-2 cis-1,2-Dichloroethene ND 1.0 ug/l156-60-5 trans-1,2-Dichloroethene ND 1.0 ug/l78-87-5 1,2-Dichloropropane ND 2.0 ug/l

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

179 of 397

MC48470

44.28

Page 212: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: MW/B-4 Lab Sample ID: MC48470-15 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 5.0 ug/l594-20-7 2,2-Dichloropropane ND 5.0 ug/l563-58-6 1,1-Dichloropropene ND 5.0 ug/l10061-01-5 cis-1,3-Dichloropropene ND 0.50 ug/l10061-02-6 trans-1,3-Dichloropropene ND 0.50 ug/l100-41-4 Ethylbenzene ND 1.0 ug/l76-13-1 Freon 113 ND 5.0 ug/l87-68-3 Hexachlorobutadiene ND 5.0 ug/l591-78-6 2-Hexanone ND 10 ug/l98-82-8 Isopropylbenzene ND 5.0 ug/l99-87-6 p-Isopropyltoluene ND 5.0 ug/l1634-04-4 Methyl Tert Butyl Ether ND 1.0 ug/l108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.0 ug/l74-95-3 Methylene bromide ND 5.0 ug/l75-09-2 Methylene chloride ND 2.0 ug/l91-20-3 Naphthalene ND 5.0 ug/l103-65-1 n-Propylbenzene ND 5.0 ug/l100-42-5 Styrene ND 5.0 ug/l630-20-6 1,1,1,2-Tetrachloroethane ND 1.0 ug/l79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 ug/l127-18-4 Tetrachloroethene ND 1.0 ug/l109-99-9 Tetrahydrofuran a ND 10 ug/l108-88-3 Toluene ND 1.0 ug/l110-57-6 Trans-1,4-Dichloro-2-Butene ND 5.0 ug/l87-61-6 1,2,3-Trichlorobenzene ND 5.0 ug/l120-82-1 1,2,4-Trichlorobenzene ND 5.0 ug/l71-55-6 1,1,1-Trichloroethane ND 1.0 ug/l79-00-5 1,1,2-Trichloroethane ND 1.0 ug/l79-01-6 Trichloroethene ND 1.0 ug/l75-69-4 Trichlorofluoromethane ND 1.0 ug/l96-18-4 1,2,3-Trichloropropane ND 5.0 ug/l95-63-6 1,2,4-Trimethylbenzene ND 5.0 ug/l108-67-8 1,3,5-Trimethylbenzene ND 5.0 ug/l75-01-4 Vinyl chloride a ND 2.0 ug/l

m,p-Xylene ND 1.0 ug/l95-47-6 o-Xylene ND 1.0 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 99% 76-129%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

180 of 397

MC48470

44.28

Page 213: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: MW/B-4 Lab Sample ID: MC48470-15 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 102% 83-114%460-00-4 4-Bromofluorobenzene 97% 75-124%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

181 of 397

MC48470

44.28

Page 214: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 2

Client Sample ID: MW/B-4 Lab Sample ID: MC48470-15 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8270D SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30652.D 1 11/02/16 MR 11/01/16 OP49052 MSW1243Run #2

Initial Volume Final VolumeRun #1 990 ml 1.0 mlRun #2

ABN RCP List(without PAH)

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 5.1 ug/l59-50-7 4-Chloro-3-methyl phenol ND 10 ug/l120-83-2 2,4-Dichlorophenol ND 10 ug/l105-67-9 2,4-Dimethylphenol ND 10 ug/l51-28-5 2,4-Dinitrophenol ND 20 ug/l534-52-1 4,6-Dinitro-o-cresol ND 10 ug/l95-48-7 2-Methylphenol ND 10 ug/l106-44-5 4-Methylphenol ND 10 ug/l88-75-5 2-Nitrophenol ND 10 ug/l100-02-7 4-Nitrophenol ND 20 ug/l87-86-5 Pentachlorophenol a ND 10 ug/l108-95-2 Phenol ND 5.1 ug/l95-95-4 2,4,5-Trichlorophenol ND 10 ug/l88-06-2 2,4,6-Trichlorophenol ND 10 ug/l62-53-3 Aniline ND 10 ug/l101-55-3 4-Bromophenyl phenyl ether ND 5.1 ug/l85-68-7 Butyl benzyl phthalate ND 5.1 ug/l91-58-7 2-Chloronaphthalene ND 5.1 ug/l106-47-8 4-Chloroaniline ND 10 ug/l86-74-8 Carbazole ND 2.0 ug/l111-91-1 bis(2-Chloroethoxy)methane ND 5.1 ug/l111-44-4 bis(2-Chloroethyl)ether ND 5.1 ug/l108-60-1 bis(2-Chloroisopropyl)ether ND 5.1 ug/l7005-72-3 4-Chlorophenyl phenyl ether ND 5.1 ug/l121-14-2 2,4-Dinitrotoluene ND 10 ug/l606-20-2 2,6-Dinitrotoluene ND 10 ug/l91-94-1 3,3'-Dichlorobenzidine ND 5.1 ug/l132-64-9 Dibenzofuran ND 2.0 ug/l84-74-2 Di-n-butyl phthalate ND 5.1 ug/l117-84-0 Di-n-octyl phthalate ND 5.1 ug/l84-66-2 Diethyl phthalate ND 5.1 ug/l131-11-3 Dimethyl phthalate ND 5.1 ug/l

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

182 of 397

MC48470

44.28

Page 215: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 2

Client Sample ID: MW/B-4 Lab Sample ID: MC48470-15 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8270D SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List(without PAH)

CAS No. Compound Result RL Units Q

117-81-7 bis(2-Ethylhexyl)phthalate ND 2.0 ug/l118-74-1 Hexachlorobenzene ND 5.1 ug/l87-68-3 Hexachlorobutadiene ND 5.1 ug/l77-47-4 Hexachlorocyclopentadiene ND 10 ug/l67-72-1 Hexachloroethane ND 5.1 ug/l78-59-1 Isophorone ND 5.1 ug/l91-57-6 2-Methylnaphthalene ND 2.0 ug/l88-74-4 2-Nitroaniline ND 10 ug/l99-09-2 3-Nitroaniline ND 10 ug/l100-01-6 4-Nitroaniline ND 10 ug/l98-95-3 Nitrobenzene ND 5.1 ug/l621-64-7 N-Nitroso-di-n-propylamine ND 5.1 ug/l86-30-6 N-Nitrosodiphenylamine ND 10 ug/l82-68-8 Pentachloronitrobenzene ND 10 ug/l110-86-1 Pyridine ND 10 ug/l95-94-3 1,2,4,5-Tetrachlorobenzene ND 10 ug/l120-82-1 1,2,4-Trichlorobenzene ND 5.1 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 38% 10-80%4165-62-2 Phenol-d5 23% 10-72%118-79-6 2,4,6-Tribromophenol 74% 42-134%4165-60-0 Nitrobenzene-d5 58% 25-117%321-60-8 2-Fluorobiphenyl 57% 24-112%1718-51-0 Terphenyl-d14 76% 48-133%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

183 of 397

MC48470

44.28

Page 216: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-4 Lab Sample ID: MC48470-15 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8270D BY SIM SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 I103522.D 1 11/01/16 AA 11/01/16 OP49053 MSI3922Run #2

Initial Volume Final VolumeRun #1 990 ml 1.0 mlRun #2

BN PAH List

CAS No. Compound Result RL Units Q

83-32-9 Acenaphthene ND 0.10 ug/l208-96-8 Acenaphthylene ND 0.10 ug/l120-12-7 Anthracene ND 0.10 ug/l56-55-3 Benzo(a)anthracene 0.13 0.051 ug/l50-32-8 Benzo(a)pyrene 0.17 0.10 ug/l205-99-2 Benzo(b)fluoranthene 0.27 0.051 ug/l191-24-2 Benzo(g,h,i)perylene 0.12 0.10 ug/l207-08-9 Benzo(k)fluoranthene ND 0.10 ug/l218-01-9 Chrysene 0.26 0.10 ug/l53-70-3 Dibenzo(a,h)anthracene 0.13 0.10 ug/l206-44-0 Fluoranthene 0.77 0.10 ug/l86-73-7 Fluorene ND 0.10 ug/l193-39-5 Indeno(1,2,3-cd)pyrene 0.23 0.10 ug/l91-57-6 2-Methylnaphthalene ND 2.0 ug/l91-20-3 Naphthalene ND 2.0 ug/l85-01-8 Phenanthrene 0.81 0.051 ug/l129-00-0 Pyrene 0.62 0.10 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

4165-60-0 Nitrobenzene-d5 83% 26-121%321-60-8 2-Fluorobiphenyl 70% 28-107%1718-51-0 Terphenyl-d14 96% 29-129%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

184 of 397

MC48470

44.28

Page 217: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-4 Lab Sample ID: MC48470-15 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8081B SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53109.D 1 11/02/16 TA 10/31/16 OP49045 GBE2669Run #2

Initial Volume Final VolumeRun #1 1000 ml 1.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 0.10 ug/l309-00-2 Aldrin ND 0.010 ug/l319-84-6 alpha-BHC ND 0.010 ug/l319-85-7 beta-BHC ND 0.010 ug/l319-86-8 delta-BHC ND 0.010 ug/l58-89-9 gamma-BHC (Lindane) ND 0.010 ug/l12789-03-6 Chlordane ND 0.10 ug/l60-57-1 Dieldrin ND 0.0020 ug/l72-54-8 4,4'-DDD ND 0.010 ug/l72-55-9 4,4'-DDE ND 0.010 ug/l50-29-3 4,4'-DDT ND 0.010 ug/l72-20-8 Endrin ND 0.010 ug/l1031-07-8 Endosulfan sulfate ND 0.010 ug/l7421-93-4 Endrin aldehyde ND 0.010 ug/l53494-70-5 Endrin ketone ND 0.010 ug/l959-98-8 Endosulfan-I ND 0.010 ug/l33213-65-9 Endosulfan-II ND 0.010 ug/l76-44-8 Heptachlor ND 0.010 ug/l1024-57-3 Heptachlor epoxide ND 0.010 ug/l72-43-5 Methoxychlor ND 0.010 ug/l8001-35-2 Toxaphene ND 0.50 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 53% 23-134%877-09-8 Tetrachloro-m-xylene 59% 23-134%2051-24-3 Decachlorobiphenyl 42% 10-127%2051-24-3 Decachlorobiphenyl 72% 10-127%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

185 of 397

MC48470

44.28

Page 218: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-4 Lab Sample ID: MC48470-15 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8082A SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BK62772.D 1 11/02/16 TA 10/31/16 OP49046 GBK1977Run #2

Initial Volume Final VolumeRun #1 1000 ml 5.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 0.25 ug/l11104-28-2 Aroclor 1221 ND 0.25 ug/l11141-16-5 Aroclor 1232 ND 0.25 ug/l53469-21-9 Aroclor 1242 ND 0.25 ug/l12672-29-6 Aroclor 1248 ND 0.25 ug/l11097-69-1 Aroclor 1254 ND 0.25 ug/l11096-82-5 Aroclor 1260 ND 0.25 ug/l37324-23-5 Aroclor 1262 ND 0.25 ug/l11100-14-4 Aroclor 1268 ND 0.25 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 58% 15-139%877-09-8 Tetrachloro-m-xylene 59% 15-139%2051-24-3 Decachlorobiphenyl 53% 10-148%2051-24-3 Decachlorobiphenyl 55% 10-148%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

186 of 397

MC48470

44.28

Page 219: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-4 Lab Sample ID: MC48470-15 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 IR3185.D 1 11/02/16 MD 11/01/16 OP49058 GIR220Run #2

Initial Volume Final VolumeRun #1 1000 ml 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 0.10 mg/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 68% 50-149%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

187 of 397

MC48470

44.28

Page 220: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-4 Lab Sample ID: MC48470-15 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16

Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

Total Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <50 50 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Copper <25 25 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.20 0.20 ug/l 1 10/31/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Zinc <20 20 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19575(2) Instrument QC Batch: MA19582(3) Prep QC Batch: MP26955(4) Prep QC Batch: MP26958

RL = Reporting Limit

188 of 397

MC48470

44.28

Page 221: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-4 Lab Sample ID: MC48470-15F Date Sampled: 10/25/16 Matrix: AQ - Groundwater Filtered Date Received: 10/26/16

Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

Dissolved Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <50 50 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Copper <25 25 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.20 0.20 ug/l 1 10/31/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Zinc <20 20 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19575(2) Instrument QC Batch: MA19582(3) Prep QC Batch: MP26955(4) Prep QC Batch: MP26958

RL = Reporting Limit

189 of 397

MC48470

44.29

Page 222: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: MW/B-3 Lab Sample ID: MC48470-16 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 N105980.D 1 11/01/16 CB n/a n/a MSN3894Run #2

Purge VolumeRun #1 5.0 mlRun #2

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/l107-13-1 Acrylonitrile ND 5.0 ug/l71-43-2 Benzene ND 0.50 ug/l108-86-1 Bromobenzene ND 5.0 ug/l75-27-4 Bromodichloromethane ND 1.0 ug/l75-25-2 Bromoform ND 1.0 ug/l74-83-9 Bromomethane a ND 2.0 ug/l78-93-3 2-Butanone (MEK) ND 10 ug/l104-51-8 n-Butylbenzene ND 5.0 ug/l135-98-8 sec-Butylbenzene ND 5.0 ug/l98-06-6 tert-Butylbenzene ND 5.0 ug/l75-15-0 Carbon disulfide ND 5.0 ug/l56-23-5 Carbon tetrachloride ND 1.0 ug/l108-90-7 Chlorobenzene ND 1.0 ug/l75-00-3 Chloroethane ND 2.0 ug/l67-66-3 Chloroform ND 1.0 ug/l74-87-3 Chloromethane a ND 2.0 ug/l95-49-8 o-Chlorotoluene ND 5.0 ug/l106-43-4 p-Chlorotoluene ND 5.0 ug/l96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 ug/l124-48-1 Dibromochloromethane ND 1.0 ug/l106-93-4 1,2-Dibromoethane ND 1.0 ug/l95-50-1 1,2-Dichlorobenzene ND 1.0 ug/l541-73-1 1,3-Dichlorobenzene ND 1.0 ug/l106-46-7 1,4-Dichlorobenzene ND 1.0 ug/l75-71-8 Dichlorodifluoromethane ND 2.0 ug/l75-34-3 1,1-Dichloroethane ND 1.0 ug/l107-06-2 1,2-Dichloroethane ND 1.0 ug/l75-35-4 1,1-Dichloroethene ND 1.0 ug/l156-59-2 cis-1,2-Dichloroethene ND 1.0 ug/l156-60-5 trans-1,2-Dichloroethene ND 1.0 ug/l78-87-5 1,2-Dichloropropane ND 2.0 ug/l

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

190 of 397

MC48470

44.30

Page 223: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: MW/B-3 Lab Sample ID: MC48470-16 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 5.0 ug/l594-20-7 2,2-Dichloropropane ND 5.0 ug/l563-58-6 1,1-Dichloropropene ND 5.0 ug/l10061-01-5 cis-1,3-Dichloropropene ND 0.50 ug/l10061-02-6 trans-1,3-Dichloropropene ND 0.50 ug/l100-41-4 Ethylbenzene ND 1.0 ug/l76-13-1 Freon 113 ND 5.0 ug/l87-68-3 Hexachlorobutadiene ND 5.0 ug/l591-78-6 2-Hexanone ND 10 ug/l98-82-8 Isopropylbenzene ND 5.0 ug/l99-87-6 p-Isopropyltoluene ND 5.0 ug/l1634-04-4 Methyl Tert Butyl Ether ND 1.0 ug/l108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.0 ug/l74-95-3 Methylene bromide ND 5.0 ug/l75-09-2 Methylene chloride ND 2.0 ug/l91-20-3 Naphthalene ND 5.0 ug/l103-65-1 n-Propylbenzene ND 5.0 ug/l100-42-5 Styrene ND 5.0 ug/l630-20-6 1,1,1,2-Tetrachloroethane ND 1.0 ug/l79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 ug/l127-18-4 Tetrachloroethene ND 1.0 ug/l109-99-9 Tetrahydrofuran a ND 10 ug/l108-88-3 Toluene ND 1.0 ug/l110-57-6 Trans-1,4-Dichloro-2-Butene ND 5.0 ug/l87-61-6 1,2,3-Trichlorobenzene ND 5.0 ug/l120-82-1 1,2,4-Trichlorobenzene ND 5.0 ug/l71-55-6 1,1,1-Trichloroethane ND 1.0 ug/l79-00-5 1,1,2-Trichloroethane ND 1.0 ug/l79-01-6 Trichloroethene ND 1.0 ug/l75-69-4 Trichlorofluoromethane ND 1.0 ug/l96-18-4 1,2,3-Trichloropropane ND 5.0 ug/l95-63-6 1,2,4-Trimethylbenzene ND 5.0 ug/l108-67-8 1,3,5-Trimethylbenzene ND 5.0 ug/l75-01-4 Vinyl chloride a ND 2.0 ug/l

m,p-Xylene ND 1.0 ug/l95-47-6 o-Xylene ND 1.0 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 99% 76-129%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

191 of 397

MC48470

44.30

Page 224: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: MW/B-3 Lab Sample ID: MC48470-16 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 100% 83-114%460-00-4 4-Bromofluorobenzene 95% 75-124%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

192 of 397

MC48470

44.30

Page 225: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 2

Client Sample ID: MW/B-3 Lab Sample ID: MC48470-16 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8270D SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30653.D 1 11/02/16 MR 11/01/16 OP49052 MSW1243Run #2

Initial Volume Final VolumeRun #1 990 ml 1.0 mlRun #2

ABN RCP List(without PAH)

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 5.1 ug/l59-50-7 4-Chloro-3-methyl phenol ND 10 ug/l120-83-2 2,4-Dichlorophenol ND 10 ug/l105-67-9 2,4-Dimethylphenol ND 10 ug/l51-28-5 2,4-Dinitrophenol ND 20 ug/l534-52-1 4,6-Dinitro-o-cresol ND 10 ug/l95-48-7 2-Methylphenol ND 10 ug/l106-44-5 4-Methylphenol ND 10 ug/l88-75-5 2-Nitrophenol ND 10 ug/l100-02-7 4-Nitrophenol ND 20 ug/l87-86-5 Pentachlorophenol a ND 10 ug/l108-95-2 Phenol ND 5.1 ug/l95-95-4 2,4,5-Trichlorophenol ND 10 ug/l88-06-2 2,4,6-Trichlorophenol ND 10 ug/l62-53-3 Aniline ND 10 ug/l101-55-3 4-Bromophenyl phenyl ether ND 5.1 ug/l85-68-7 Butyl benzyl phthalate ND 5.1 ug/l91-58-7 2-Chloronaphthalene ND 5.1 ug/l106-47-8 4-Chloroaniline ND 10 ug/l86-74-8 Carbazole ND 2.0 ug/l111-91-1 bis(2-Chloroethoxy)methane ND 5.1 ug/l111-44-4 bis(2-Chloroethyl)ether ND 5.1 ug/l108-60-1 bis(2-Chloroisopropyl)ether ND 5.1 ug/l7005-72-3 4-Chlorophenyl phenyl ether ND 5.1 ug/l121-14-2 2,4-Dinitrotoluene ND 10 ug/l606-20-2 2,6-Dinitrotoluene ND 10 ug/l91-94-1 3,3'-Dichlorobenzidine ND 5.1 ug/l132-64-9 Dibenzofuran ND 2.0 ug/l84-74-2 Di-n-butyl phthalate ND 5.1 ug/l117-84-0 Di-n-octyl phthalate ND 5.1 ug/l84-66-2 Diethyl phthalate ND 5.1 ug/l131-11-3 Dimethyl phthalate ND 5.1 ug/l

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

193 of 397

MC48470

44.30

Page 226: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 2

Client Sample ID: MW/B-3 Lab Sample ID: MC48470-16 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8270D SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List(without PAH)

CAS No. Compound Result RL Units Q

117-81-7 bis(2-Ethylhexyl)phthalate ND 2.0 ug/l118-74-1 Hexachlorobenzene ND 5.1 ug/l87-68-3 Hexachlorobutadiene ND 5.1 ug/l77-47-4 Hexachlorocyclopentadiene ND 10 ug/l67-72-1 Hexachloroethane ND 5.1 ug/l78-59-1 Isophorone ND 5.1 ug/l91-57-6 2-Methylnaphthalene ND 2.0 ug/l88-74-4 2-Nitroaniline ND 10 ug/l99-09-2 3-Nitroaniline ND 10 ug/l100-01-6 4-Nitroaniline ND 10 ug/l98-95-3 Nitrobenzene ND 5.1 ug/l621-64-7 N-Nitroso-di-n-propylamine ND 5.1 ug/l86-30-6 N-Nitrosodiphenylamine ND 10 ug/l82-68-8 Pentachloronitrobenzene ND 10 ug/l110-86-1 Pyridine ND 10 ug/l95-94-3 1,2,4,5-Tetrachlorobenzene ND 10 ug/l120-82-1 1,2,4-Trichlorobenzene ND 5.1 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 42% 10-80%4165-62-2 Phenol-d5 26% 10-72%118-79-6 2,4,6-Tribromophenol 82% 42-134%4165-60-0 Nitrobenzene-d5 61% 25-117%321-60-8 2-Fluorobiphenyl 59% 24-112%1718-51-0 Terphenyl-d14 84% 48-133%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

194 of 397

MC48470

44.30

Page 227: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-3 Lab Sample ID: MC48470-16 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8270D BY SIM SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 I103523.D 1 11/01/16 AA 11/01/16 OP49053 MSI3922Run #2

Initial Volume Final VolumeRun #1 990 ml 1.0 mlRun #2

BN PAH List

CAS No. Compound Result RL Units Q

83-32-9 Acenaphthene ND 0.10 ug/l208-96-8 Acenaphthylene ND 0.10 ug/l120-12-7 Anthracene ND 0.10 ug/l56-55-3 Benzo(a)anthracene ND 0.051 ug/l50-32-8 Benzo(a)pyrene ND 0.10 ug/l205-99-2 Benzo(b)fluoranthene 0.072 0.051 ug/l191-24-2 Benzo(g,h,i)perylene ND 0.10 ug/l207-08-9 Benzo(k)fluoranthene ND 0.10 ug/l218-01-9 Chrysene ND 0.10 ug/l53-70-3 Dibenzo(a,h)anthracene 0.13 0.10 ug/l206-44-0 Fluoranthene ND 0.10 ug/l86-73-7 Fluorene ND 0.10 ug/l193-39-5 Indeno(1,2,3-cd)pyrene 0.13 0.10 ug/l91-57-6 2-Methylnaphthalene ND 2.0 ug/l91-20-3 Naphthalene ND 2.0 ug/l85-01-8 Phenanthrene 0.086 0.051 ug/l129-00-0 Pyrene ND 0.10 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

4165-60-0 Nitrobenzene-d5 86% 26-121%321-60-8 2-Fluorobiphenyl 73% 28-107%1718-51-0 Terphenyl-d14 99% 29-129%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

195 of 397

MC48470

44.30

Page 228: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-3 Lab Sample ID: MC48470-16 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8081B SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53110.D 1 11/02/16 TA 10/31/16 OP49045 GBE2669Run #2

Initial Volume Final VolumeRun #1 990 ml 1.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 0.10 ug/l309-00-2 Aldrin ND 0.010 ug/l319-84-6 alpha-BHC ND 0.010 ug/l319-85-7 beta-BHC ND 0.010 ug/l319-86-8 delta-BHC ND 0.010 ug/l58-89-9 gamma-BHC (Lindane) ND 0.010 ug/l12789-03-6 Chlordane ND 0.10 ug/l60-57-1 Dieldrin ND 0.0020 ug/l72-54-8 4,4'-DDD ND 0.010 ug/l72-55-9 4,4'-DDE ND 0.010 ug/l50-29-3 4,4'-DDT ND 0.010 ug/l72-20-8 Endrin ND 0.010 ug/l1031-07-8 Endosulfan sulfate ND 0.010 ug/l7421-93-4 Endrin aldehyde ND 0.010 ug/l53494-70-5 Endrin ketone ND 0.010 ug/l959-98-8 Endosulfan-I ND 0.010 ug/l33213-65-9 Endosulfan-II ND 0.010 ug/l76-44-8 Heptachlor ND 0.010 ug/l1024-57-3 Heptachlor epoxide ND 0.010 ug/l72-43-5 Methoxychlor ND 0.010 ug/l8001-35-2 Toxaphene ND 0.51 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 57% 23-134%877-09-8 Tetrachloro-m-xylene 72% 23-134%2051-24-3 Decachlorobiphenyl 21% 10-127%2051-24-3 Decachlorobiphenyl 38% 10-127%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

196 of 397

MC48470

44.30

Page 229: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-3 Lab Sample ID: MC48470-16 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8082A SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BK62773.D 1 11/02/16 TA 10/31/16 OP49046 GBK1977Run #2

Initial Volume Final VolumeRun #1 990 ml 5.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 0.25 ug/l11104-28-2 Aroclor 1221 ND 0.25 ug/l11141-16-5 Aroclor 1232 ND 0.25 ug/l53469-21-9 Aroclor 1242 ND 0.25 ug/l12672-29-6 Aroclor 1248 ND 0.25 ug/l11097-69-1 Aroclor 1254 ND 0.25 ug/l11096-82-5 Aroclor 1260 ND 0.25 ug/l37324-23-5 Aroclor 1262 ND 0.25 ug/l11100-14-4 Aroclor 1268 ND 0.25 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 50% 15-139%877-09-8 Tetrachloro-m-xylene 53% 15-139%2051-24-3 Decachlorobiphenyl 63% 10-148%2051-24-3 Decachlorobiphenyl 66% 10-148%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

197 of 397

MC48470

44.30

Page 230: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-3 Lab Sample ID: MC48470-16 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 IR3186.D 1 11/02/16 MD 11/01/16 OP49058 GIR220Run #2

Initial Volume Final VolumeRun #1 990 ml 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 0.10 mg/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 73% 50-149%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

198 of 397

MC48470

44.30

Page 231: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-3 Lab Sample ID: MC48470-16 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16

Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

Total Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic 4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Barium 103 50 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium 13.9 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Copper <25 25 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Lead 5.5 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.20 0.20 ug/l 1 10/31/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Zinc <20 20 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19575(2) Instrument QC Batch: MA19582(3) Prep QC Batch: MP26955(4) Prep QC Batch: MP26958

RL = Reporting Limit

199 of 397

MC48470

44.30

Page 232: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: MW/B-3 Lab Sample ID: MC48470-16F Date Sampled: 10/25/16 Matrix: AQ - Groundwater Filtered Date Received: 10/26/16

Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

Dissolved Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <50 50 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Copper <25 25 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.20 0.20 ug/l 1 10/31/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Zinc <20 20 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19575(2) Instrument QC Batch: MA19582(3) Prep QC Batch: MP26955(4) Prep QC Batch: MP26958

RL = Reporting Limit

200 of 397

MC48470

44.31

Page 233: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: DUP Lab Sample ID: MC48470-17 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 N105981.D 1 11/01/16 CB n/a n/a MSN3894Run #2

Purge VolumeRun #1 5.0 mlRun #2

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/l107-13-1 Acrylonitrile ND 5.0 ug/l71-43-2 Benzene ND 0.50 ug/l108-86-1 Bromobenzene ND 5.0 ug/l75-27-4 Bromodichloromethane ND 1.0 ug/l75-25-2 Bromoform ND 1.0 ug/l74-83-9 Bromomethane a ND 2.0 ug/l78-93-3 2-Butanone (MEK) ND 10 ug/l104-51-8 n-Butylbenzene ND 5.0 ug/l135-98-8 sec-Butylbenzene ND 5.0 ug/l98-06-6 tert-Butylbenzene ND 5.0 ug/l75-15-0 Carbon disulfide ND 5.0 ug/l56-23-5 Carbon tetrachloride ND 1.0 ug/l108-90-7 Chlorobenzene ND 1.0 ug/l75-00-3 Chloroethane ND 2.0 ug/l67-66-3 Chloroform ND 1.0 ug/l74-87-3 Chloromethane a ND 2.0 ug/l95-49-8 o-Chlorotoluene ND 5.0 ug/l106-43-4 p-Chlorotoluene ND 5.0 ug/l96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 ug/l124-48-1 Dibromochloromethane ND 1.0 ug/l106-93-4 1,2-Dibromoethane ND 1.0 ug/l95-50-1 1,2-Dichlorobenzene ND 1.0 ug/l541-73-1 1,3-Dichlorobenzene ND 1.0 ug/l106-46-7 1,4-Dichlorobenzene ND 1.0 ug/l75-71-8 Dichlorodifluoromethane ND 2.0 ug/l75-34-3 1,1-Dichloroethane ND 1.0 ug/l107-06-2 1,2-Dichloroethane ND 1.0 ug/l75-35-4 1,1-Dichloroethene ND 1.0 ug/l156-59-2 cis-1,2-Dichloroethene ND 1.0 ug/l156-60-5 trans-1,2-Dichloroethene ND 1.0 ug/l78-87-5 1,2-Dichloropropane ND 2.0 ug/l

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

201 of 397

MC48470

44.32

Page 234: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: DUP Lab Sample ID: MC48470-17 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 5.0 ug/l594-20-7 2,2-Dichloropropane ND 5.0 ug/l563-58-6 1,1-Dichloropropene ND 5.0 ug/l10061-01-5 cis-1,3-Dichloropropene ND 0.50 ug/l10061-02-6 trans-1,3-Dichloropropene ND 0.50 ug/l100-41-4 Ethylbenzene ND 1.0 ug/l76-13-1 Freon 113 ND 5.0 ug/l87-68-3 Hexachlorobutadiene ND 5.0 ug/l591-78-6 2-Hexanone ND 10 ug/l98-82-8 Isopropylbenzene ND 5.0 ug/l99-87-6 p-Isopropyltoluene ND 5.0 ug/l1634-04-4 Methyl Tert Butyl Ether ND 1.0 ug/l108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.0 ug/l74-95-3 Methylene bromide ND 5.0 ug/l75-09-2 Methylene chloride ND 2.0 ug/l91-20-3 Naphthalene ND 5.0 ug/l103-65-1 n-Propylbenzene ND 5.0 ug/l100-42-5 Styrene ND 5.0 ug/l630-20-6 1,1,1,2-Tetrachloroethane ND 1.0 ug/l79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 ug/l127-18-4 Tetrachloroethene ND 1.0 ug/l109-99-9 Tetrahydrofuran a ND 10 ug/l108-88-3 Toluene ND 1.0 ug/l110-57-6 Trans-1,4-Dichloro-2-Butene ND 5.0 ug/l87-61-6 1,2,3-Trichlorobenzene ND 5.0 ug/l120-82-1 1,2,4-Trichlorobenzene ND 5.0 ug/l71-55-6 1,1,1-Trichloroethane ND 1.0 ug/l79-00-5 1,1,2-Trichloroethane ND 1.0 ug/l79-01-6 Trichloroethene ND 1.0 ug/l75-69-4 Trichlorofluoromethane ND 1.0 ug/l96-18-4 1,2,3-Trichloropropane ND 5.0 ug/l95-63-6 1,2,4-Trimethylbenzene ND 5.0 ug/l108-67-8 1,3,5-Trimethylbenzene ND 5.0 ug/l75-01-4 Vinyl chloride a ND 2.0 ug/l

m,p-Xylene ND 1.0 ug/l95-47-6 o-Xylene ND 1.0 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 98% 76-129%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

202 of 397

MC48470

44.32

Page 235: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: DUP Lab Sample ID: MC48470-17 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 100% 83-114%460-00-4 4-Bromofluorobenzene 93% 75-124%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

203 of 397

MC48470

44.32

Page 236: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 2

Client Sample ID: DUP Lab Sample ID: MC48470-17 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8270D SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30654.D 1 11/02/16 MR 11/01/16 OP49052 MSW1243Run #2

Initial Volume Final VolumeRun #1 1000 ml 1.0 mlRun #2

ABN RCP List(without PAH)

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 5.0 ug/l59-50-7 4-Chloro-3-methyl phenol ND 10 ug/l120-83-2 2,4-Dichlorophenol ND 10 ug/l105-67-9 2,4-Dimethylphenol ND 10 ug/l51-28-5 2,4-Dinitrophenol ND 20 ug/l534-52-1 4,6-Dinitro-o-cresol ND 10 ug/l95-48-7 2-Methylphenol ND 10 ug/l106-44-5 4-Methylphenol ND 10 ug/l88-75-5 2-Nitrophenol ND 10 ug/l100-02-7 4-Nitrophenol ND 20 ug/l87-86-5 Pentachlorophenol a ND 10 ug/l108-95-2 Phenol ND 5.0 ug/l95-95-4 2,4,5-Trichlorophenol ND 10 ug/l88-06-2 2,4,6-Trichlorophenol ND 10 ug/l62-53-3 Aniline ND 10 ug/l101-55-3 4-Bromophenyl phenyl ether ND 5.0 ug/l85-68-7 Butyl benzyl phthalate ND 5.0 ug/l91-58-7 2-Chloronaphthalene ND 5.0 ug/l106-47-8 4-Chloroaniline ND 10 ug/l86-74-8 Carbazole ND 2.0 ug/l111-91-1 bis(2-Chloroethoxy)methane ND 5.0 ug/l111-44-4 bis(2-Chloroethyl)ether ND 5.0 ug/l108-60-1 bis(2-Chloroisopropyl)ether ND 5.0 ug/l7005-72-3 4-Chlorophenyl phenyl ether ND 5.0 ug/l121-14-2 2,4-Dinitrotoluene ND 10 ug/l606-20-2 2,6-Dinitrotoluene ND 10 ug/l91-94-1 3,3'-Dichlorobenzidine ND 5.0 ug/l132-64-9 Dibenzofuran ND 2.0 ug/l84-74-2 Di-n-butyl phthalate ND 5.0 ug/l117-84-0 Di-n-octyl phthalate ND 5.0 ug/l84-66-2 Diethyl phthalate ND 5.0 ug/l131-11-3 Dimethyl phthalate ND 5.0 ug/l

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

204 of 397

MC48470

44.32

Page 237: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 2

Client Sample ID: DUP Lab Sample ID: MC48470-17 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8270D SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List(without PAH)

CAS No. Compound Result RL Units Q

117-81-7 bis(2-Ethylhexyl)phthalate ND 2.0 ug/l118-74-1 Hexachlorobenzene ND 5.0 ug/l87-68-3 Hexachlorobutadiene ND 5.0 ug/l77-47-4 Hexachlorocyclopentadiene ND 10 ug/l67-72-1 Hexachloroethane ND 5.0 ug/l78-59-1 Isophorone ND 5.0 ug/l91-57-6 2-Methylnaphthalene ND 2.0 ug/l88-74-4 2-Nitroaniline ND 10 ug/l99-09-2 3-Nitroaniline ND 10 ug/l100-01-6 4-Nitroaniline ND 10 ug/l98-95-3 Nitrobenzene ND 5.0 ug/l621-64-7 N-Nitroso-di-n-propylamine ND 5.0 ug/l86-30-6 N-Nitrosodiphenylamine ND 10 ug/l82-68-8 Pentachloronitrobenzene ND 10 ug/l110-86-1 Pyridine ND 10 ug/l95-94-3 1,2,4,5-Tetrachlorobenzene ND 10 ug/l120-82-1 1,2,4-Trichlorobenzene ND 5.0 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 40% 10-80%4165-62-2 Phenol-d5 25% 10-72%118-79-6 2,4,6-Tribromophenol 78% 42-134%4165-60-0 Nitrobenzene-d5 60% 25-117%321-60-8 2-Fluorobiphenyl 58% 24-112%1718-51-0 Terphenyl-d14 83% 48-133%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

205 of 397

MC48470

44.32

Page 238: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-17 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8270D BY SIM SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 I103524.D 1 11/01/16 AA 11/01/16 OP49053 MSI3922Run #2

Initial Volume Final VolumeRun #1 1000 ml 1.0 mlRun #2

BN PAH List

CAS No. Compound Result RL Units Q

83-32-9 Acenaphthene ND 0.10 ug/l208-96-8 Acenaphthylene ND 0.10 ug/l120-12-7 Anthracene ND 0.10 ug/l56-55-3 Benzo(a)anthracene ND 0.050 ug/l50-32-8 Benzo(a)pyrene ND 0.10 ug/l205-99-2 Benzo(b)fluoranthene 0.061 0.050 ug/l191-24-2 Benzo(g,h,i)perylene ND 0.10 ug/l207-08-9 Benzo(k)fluoranthene ND 0.10 ug/l218-01-9 Chrysene ND 0.10 ug/l53-70-3 Dibenzo(a,h)anthracene 0.11 0.10 ug/l206-44-0 Fluoranthene ND 0.10 ug/l86-73-7 Fluorene ND 0.10 ug/l193-39-5 Indeno(1,2,3-cd)pyrene 0.12 0.10 ug/l91-57-6 2-Methylnaphthalene ND 2.0 ug/l91-20-3 Naphthalene ND 2.0 ug/l85-01-8 Phenanthrene 0.078 0.050 ug/l129-00-0 Pyrene ND 0.10 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

4165-60-0 Nitrobenzene-d5 80% 26-121%321-60-8 2-Fluorobiphenyl 67% 28-107%1718-51-0 Terphenyl-d14 91% 29-129%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

206 of 397

MC48470

44.32

Page 239: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-17 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8081B SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53111.D 1 11/02/16 TA 10/31/16 OP49045 GBE2669Run #2

Initial Volume Final VolumeRun #1 990 ml 1.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 0.10 ug/l309-00-2 Aldrin ND 0.010 ug/l319-84-6 alpha-BHC ND 0.010 ug/l319-85-7 beta-BHC ND 0.010 ug/l319-86-8 delta-BHC ND 0.010 ug/l58-89-9 gamma-BHC (Lindane) ND 0.010 ug/l12789-03-6 Chlordane ND 0.10 ug/l60-57-1 Dieldrin ND 0.0020 ug/l72-54-8 4,4'-DDD ND 0.010 ug/l72-55-9 4,4'-DDE ND 0.010 ug/l50-29-3 4,4'-DDT ND 0.010 ug/l72-20-8 Endrin ND 0.010 ug/l1031-07-8 Endosulfan sulfate ND 0.010 ug/l7421-93-4 Endrin aldehyde ND 0.010 ug/l53494-70-5 Endrin ketone ND 0.010 ug/l959-98-8 Endosulfan-I ND 0.010 ug/l33213-65-9 Endosulfan-II ND 0.010 ug/l76-44-8 Heptachlor ND 0.010 ug/l1024-57-3 Heptachlor epoxide ND 0.010 ug/l72-43-5 Methoxychlor ND 0.010 ug/l8001-35-2 Toxaphene ND 0.51 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 65% 23-134%877-09-8 Tetrachloro-m-xylene 70% 23-134%2051-24-3 Decachlorobiphenyl 20% 10-127%2051-24-3 Decachlorobiphenyl 42% 10-127%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

207 of 397

MC48470

44.32

Page 240: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-17 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: SW846 8082A SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BK62774.D 1 11/02/16 TA 10/31/16 OP49046 GBK1977Run #2

Initial Volume Final VolumeRun #1 980 ml 5.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 0.26 ug/l11104-28-2 Aroclor 1221 ND 0.26 ug/l11141-16-5 Aroclor 1232 ND 0.26 ug/l53469-21-9 Aroclor 1242 ND 0.26 ug/l12672-29-6 Aroclor 1248 ND 0.26 ug/l11097-69-1 Aroclor 1254 ND 0.26 ug/l11096-82-5 Aroclor 1260 ND 0.26 ug/l37324-23-5 Aroclor 1262 ND 0.26 ug/l11100-14-4 Aroclor 1268 ND 0.26 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 62% 15-139%877-09-8 Tetrachloro-m-xylene 63% 15-139%2051-24-3 Decachlorobiphenyl 51% 10-148%2051-24-3 Decachlorobiphenyl 53% 10-148%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

208 of 397

MC48470

44.32

Page 241: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-17 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 IR3187.D 1 11/02/16 MD 11/01/16 OP49058 GIR220Run #2

Initial Volume Final VolumeRun #1 550 ml 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 0.18 mg/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 60% 50-149%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

209 of 397

MC48470

44.32

Page 242: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-17 Date Sampled: 10/25/16 Matrix: AQ - Ground Water Date Received: 10/26/16

Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

Total Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <50 50 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Copper <25 25 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.20 0.20 ug/l 1 10/31/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Zinc <20 20 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19575(2) Instrument QC Batch: MA19582(3) Prep QC Batch: MP26955(4) Prep QC Batch: MP26958

RL = Reporting Limit

210 of 397

MC48470

44.32

Page 243: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: DUP Lab Sample ID: MC48470-17F Date Sampled: 10/25/16 Matrix: AQ - Groundwater Filtered Date Received: 10/26/16

Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

Dissolved Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <50 50 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Copper <25 25 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.20 0.20 ug/l 1 10/31/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Zinc <20 20 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19575(2) Instrument QC Batch: MA19582(3) Prep QC Batch: MP26955(4) Prep QC Batch: MP26958

RL = Reporting Limit

211 of 397

MC48470

44.33

Page 244: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 3

Client Sample ID: FIELD BLANK Lab Sample ID: MC48470-19 Date Sampled: 10/25/16 Matrix: AQ - Field Blank Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 N105977.D 1 11/01/16 CB n/a n/a MSN3894Run #2

Purge VolumeRun #1 5.0 mlRun #2

VOA RCP List

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/l107-13-1 Acrylonitrile ND 5.0 ug/l71-43-2 Benzene ND 0.50 ug/l108-86-1 Bromobenzene ND 5.0 ug/l75-27-4 Bromodichloromethane ND 1.0 ug/l75-25-2 Bromoform ND 1.0 ug/l74-83-9 Bromomethane a ND 2.0 ug/l78-93-3 2-Butanone (MEK) ND 10 ug/l104-51-8 n-Butylbenzene ND 5.0 ug/l135-98-8 sec-Butylbenzene ND 5.0 ug/l98-06-6 tert-Butylbenzene ND 5.0 ug/l75-15-0 Carbon disulfide ND 5.0 ug/l56-23-5 Carbon tetrachloride ND 1.0 ug/l108-90-7 Chlorobenzene ND 1.0 ug/l75-00-3 Chloroethane ND 2.0 ug/l67-66-3 Chloroform ND 1.0 ug/l74-87-3 Chloromethane a ND 2.0 ug/l95-49-8 o-Chlorotoluene ND 5.0 ug/l106-43-4 p-Chlorotoluene ND 5.0 ug/l96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 ug/l124-48-1 Dibromochloromethane ND 1.0 ug/l106-93-4 1,2-Dibromoethane ND 1.0 ug/l95-50-1 1,2-Dichlorobenzene ND 1.0 ug/l541-73-1 1,3-Dichlorobenzene ND 1.0 ug/l106-46-7 1,4-Dichlorobenzene ND 1.0 ug/l75-71-8 Dichlorodifluoromethane ND 2.0 ug/l75-34-3 1,1-Dichloroethane ND 1.0 ug/l107-06-2 1,2-Dichloroethane ND 1.0 ug/l75-35-4 1,1-Dichloroethene ND 1.0 ug/l156-59-2 cis-1,2-Dichloroethene ND 1.0 ug/l156-60-5 trans-1,2-Dichloroethene ND 1.0 ug/l78-87-5 1,2-Dichloropropane ND 2.0 ug/l

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

212 of 397

MC48470

44.34

Page 245: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 3

Client Sample ID: FIELD BLANK Lab Sample ID: MC48470-19 Date Sampled: 10/25/16 Matrix: AQ - Field Blank Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Compound Result RL Units Q

142-28-9 1,3-Dichloropropane ND 5.0 ug/l594-20-7 2,2-Dichloropropane ND 5.0 ug/l563-58-6 1,1-Dichloropropene ND 5.0 ug/l10061-01-5 cis-1,3-Dichloropropene ND 0.50 ug/l10061-02-6 trans-1,3-Dichloropropene ND 0.50 ug/l100-41-4 Ethylbenzene ND 1.0 ug/l76-13-1 Freon 113 ND 5.0 ug/l87-68-3 Hexachlorobutadiene ND 5.0 ug/l591-78-6 2-Hexanone ND 10 ug/l98-82-8 Isopropylbenzene ND 5.0 ug/l99-87-6 p-Isopropyltoluene ND 5.0 ug/l1634-04-4 Methyl Tert Butyl Ether ND 1.0 ug/l108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.0 ug/l74-95-3 Methylene bromide ND 5.0 ug/l75-09-2 Methylene chloride ND 2.0 ug/l91-20-3 Naphthalene ND 5.0 ug/l103-65-1 n-Propylbenzene ND 5.0 ug/l100-42-5 Styrene ND 5.0 ug/l630-20-6 1,1,1,2-Tetrachloroethane ND 1.0 ug/l79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 ug/l127-18-4 Tetrachloroethene ND 1.0 ug/l109-99-9 Tetrahydrofuran a ND 10 ug/l108-88-3 Toluene ND 1.0 ug/l110-57-6 Trans-1,4-Dichloro-2-Butene ND 5.0 ug/l87-61-6 1,2,3-Trichlorobenzene ND 5.0 ug/l120-82-1 1,2,4-Trichlorobenzene ND 5.0 ug/l71-55-6 1,1,1-Trichloroethane ND 1.0 ug/l79-00-5 1,1,2-Trichloroethane ND 1.0 ug/l79-01-6 Trichloroethene ND 1.0 ug/l75-69-4 Trichlorofluoromethane ND 1.0 ug/l96-18-4 1,2,3-Trichloropropane ND 5.0 ug/l95-63-6 1,2,4-Trimethylbenzene ND 5.0 ug/l108-67-8 1,3,5-Trimethylbenzene ND 5.0 ug/l75-01-4 Vinyl chloride a ND 2.0 ug/l

m,p-Xylene ND 1.0 ug/l95-47-6 o-Xylene ND 1.0 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

1868-53-7 Dibromofluoromethane 99% 76-129%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

213 of 397

MC48470

44.34

Page 246: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 3 of 3

Client Sample ID: FIELD BLANK Lab Sample ID: MC48470-19 Date Sampled: 10/25/16 Matrix: AQ - Field Blank Water Date Received: 10/26/16 Method: SW846 8260C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

VOA RCP List

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

2037-26-5 Toluene-D8 101% 83-114%460-00-4 4-Bromofluorobenzene 94% 75-124%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

214 of 397

MC48470

44.34

Page 247: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 2

Client Sample ID: FIELD BLANK Lab Sample ID: MC48470-19 Date Sampled: 10/25/16 Matrix: AQ - Field Blank Water Date Received: 10/26/16 Method: SW846 8270D SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 W30655.D 1 11/02/16 MR 11/01/16 OP49052 MSW1243Run #2

Initial Volume Final VolumeRun #1 950 ml 1.0 mlRun #2

ABN RCP List(without PAH)

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 5.3 ug/l59-50-7 4-Chloro-3-methyl phenol ND 11 ug/l120-83-2 2,4-Dichlorophenol ND 11 ug/l105-67-9 2,4-Dimethylphenol ND 11 ug/l51-28-5 2,4-Dinitrophenol ND 21 ug/l534-52-1 4,6-Dinitro-o-cresol ND 11 ug/l95-48-7 2-Methylphenol ND 11 ug/l106-44-5 4-Methylphenol ND 11 ug/l88-75-5 2-Nitrophenol ND 11 ug/l100-02-7 4-Nitrophenol ND 21 ug/l87-86-5 Pentachlorophenol a ND 11 ug/l108-95-2 Phenol ND 5.3 ug/l95-95-4 2,4,5-Trichlorophenol ND 11 ug/l88-06-2 2,4,6-Trichlorophenol ND 11 ug/l62-53-3 Aniline ND 11 ug/l101-55-3 4-Bromophenyl phenyl ether ND 5.3 ug/l85-68-7 Butyl benzyl phthalate ND 5.3 ug/l91-58-7 2-Chloronaphthalene ND 5.3 ug/l106-47-8 4-Chloroaniline ND 11 ug/l86-74-8 Carbazole ND 2.1 ug/l111-91-1 bis(2-Chloroethoxy)methane ND 5.3 ug/l111-44-4 bis(2-Chloroethyl)ether ND 5.3 ug/l108-60-1 bis(2-Chloroisopropyl)ether ND 5.3 ug/l7005-72-3 4-Chlorophenyl phenyl ether ND 5.3 ug/l121-14-2 2,4-Dinitrotoluene ND 11 ug/l606-20-2 2,6-Dinitrotoluene ND 11 ug/l91-94-1 3,3'-Dichlorobenzidine ND 5.3 ug/l132-64-9 Dibenzofuran ND 2.1 ug/l84-74-2 Di-n-butyl phthalate ND 5.3 ug/l117-84-0 Di-n-octyl phthalate ND 5.3 ug/l84-66-2 Diethyl phthalate ND 5.3 ug/l131-11-3 Dimethyl phthalate ND 5.3 ug/l

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

215 of 397

MC48470

44.34

Page 248: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 2 of 2

Client Sample ID: FIELD BLANK Lab Sample ID: MC48470-19 Date Sampled: 10/25/16 Matrix: AQ - Field Blank Water Date Received: 10/26/16 Method: SW846 8270D SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

ABN RCP List(without PAH)

CAS No. Compound Result RL Units Q

117-81-7 bis(2-Ethylhexyl)phthalate ND 2.1 ug/l118-74-1 Hexachlorobenzene ND 5.3 ug/l87-68-3 Hexachlorobutadiene ND 5.3 ug/l77-47-4 Hexachlorocyclopentadiene ND 11 ug/l67-72-1 Hexachloroethane ND 5.3 ug/l78-59-1 Isophorone ND 5.3 ug/l91-57-6 2-Methylnaphthalene ND 2.1 ug/l88-74-4 2-Nitroaniline ND 11 ug/l99-09-2 3-Nitroaniline ND 11 ug/l100-01-6 4-Nitroaniline ND 11 ug/l98-95-3 Nitrobenzene ND 5.3 ug/l621-64-7 N-Nitroso-di-n-propylamine ND 5.3 ug/l86-30-6 N-Nitrosodiphenylamine ND 11 ug/l82-68-8 Pentachloronitrobenzene ND 11 ug/l110-86-1 Pyridine ND 11 ug/l95-94-3 1,2,4,5-Tetrachlorobenzene ND 11 ug/l120-82-1 1,2,4-Trichlorobenzene ND 5.3 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

367-12-4 2-Fluorophenol 44% 10-80%4165-62-2 Phenol-d5 27% 10-72%118-79-6 2,4,6-Tribromophenol 80% 42-134%4165-60-0 Nitrobenzene-d5 63% 25-117%321-60-8 2-Fluorobiphenyl 63% 24-112%1718-51-0 Terphenyl-d14 88% 48-133%

(a) Continuing Calibration outside of acceptance criteria. Reporting Limit Response verified by low-levelstandard.

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

216 of 397

MC48470

44.34

Page 249: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: FIELD BLANK Lab Sample ID: MC48470-19 Date Sampled: 10/25/16 Matrix: AQ - Field Blank Water Date Received: 10/26/16 Method: SW846 8270D BY SIM SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 I103525.D 1 11/01/16 AA 11/01/16 OP49053 MSI3922Run #2

Initial Volume Final VolumeRun #1 950 ml 1.0 mlRun #2

BN PAH List

CAS No. Compound Result RL Units Q

83-32-9 Acenaphthene ND 0.11 ug/l208-96-8 Acenaphthylene ND 0.11 ug/l120-12-7 Anthracene ND 0.11 ug/l56-55-3 Benzo(a)anthracene ND 0.053 ug/l50-32-8 Benzo(a)pyrene ND 0.11 ug/l205-99-2 Benzo(b)fluoranthene ND 0.053 ug/l191-24-2 Benzo(g,h,i)perylene ND 0.11 ug/l207-08-9 Benzo(k)fluoranthene ND 0.11 ug/l218-01-9 Chrysene ND 0.11 ug/l53-70-3 Dibenzo(a,h)anthracene 0.11 0.11 ug/l206-44-0 Fluoranthene ND 0.11 ug/l86-73-7 Fluorene ND 0.11 ug/l193-39-5 Indeno(1,2,3-cd)pyrene 0.11 0.11 ug/l91-57-6 2-Methylnaphthalene ND 2.1 ug/l91-20-3 Naphthalene ND 2.1 ug/l85-01-8 Phenanthrene ND 0.053 ug/l129-00-0 Pyrene ND 0.11 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

4165-60-0 Nitrobenzene-d5 84% 26-121%321-60-8 2-Fluorobiphenyl 71% 28-107%1718-51-0 Terphenyl-d14 99% 29-129%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

217 of 397

MC48470

44.34

Page 250: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: FIELD BLANK Lab Sample ID: MC48470-19 Date Sampled: 10/25/16 Matrix: AQ - Field Blank Water Date Received: 10/26/16 Method: SW846 8081B SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BE53112.D 1 11/02/16 TA 10/31/16 OP49045 GBE2669Run #2

Initial Volume Final VolumeRun #1 880 ml 1.0 mlRun #2

Pesticide RCP List

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 0.11 ug/l309-00-2 Aldrin ND 0.011 ug/l319-84-6 alpha-BHC ND 0.011 ug/l319-85-7 beta-BHC ND 0.011 ug/l319-86-8 delta-BHC ND 0.011 ug/l58-89-9 gamma-BHC (Lindane) ND 0.011 ug/l12789-03-6 Chlordane ND 0.11 ug/l60-57-1 Dieldrin ND 0.0020 ug/l72-54-8 4,4'-DDD ND 0.011 ug/l72-55-9 4,4'-DDE ND 0.011 ug/l50-29-3 4,4'-DDT ND 0.011 ug/l72-20-8 Endrin ND 0.011 ug/l1031-07-8 Endosulfan sulfate ND 0.011 ug/l7421-93-4 Endrin aldehyde ND 0.011 ug/l53494-70-5 Endrin ketone ND 0.011 ug/l959-98-8 Endosulfan-I ND 0.011 ug/l33213-65-9 Endosulfan-II ND 0.011 ug/l76-44-8 Heptachlor ND 0.011 ug/l1024-57-3 Heptachlor epoxide ND 0.011 ug/l72-43-5 Methoxychlor ND 0.011 ug/l8001-35-2 Toxaphene ND 0.57 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 85% 23-134%877-09-8 Tetrachloro-m-xylene 78% 23-134%2051-24-3 Decachlorobiphenyl 42% 10-127%2051-24-3 Decachlorobiphenyl 54% 10-127%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

218 of 397

MC48470

44.34

Page 251: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: FIELD BLANK Lab Sample ID: MC48470-19 Date Sampled: 10/25/16 Matrix: AQ - Field Blank Water Date Received: 10/26/16 Method: SW846 8082A SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 BK62775.D 1 11/02/16 TA 10/31/16 OP49046 GBK1977Run #2

Initial Volume Final VolumeRun #1 840 ml 5.0 mlRun #2

CT Polychlorinated Biphenyls RCP List

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 0.30 ug/l11104-28-2 Aroclor 1221 ND 0.30 ug/l11141-16-5 Aroclor 1232 ND 0.30 ug/l53469-21-9 Aroclor 1242 ND 0.30 ug/l12672-29-6 Aroclor 1248 ND 0.30 ug/l11097-69-1 Aroclor 1254 ND 0.30 ug/l11096-82-5 Aroclor 1260 ND 0.30 ug/l37324-23-5 Aroclor 1262 ND 0.30 ug/l11100-14-4 Aroclor 1268 ND 0.30 ug/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

877-09-8 Tetrachloro-m-xylene 84% 15-139%877-09-8 Tetrachloro-m-xylene 87% 15-139%2051-24-3 Decachlorobiphenyl 85% 10-148%2051-24-3 Decachlorobiphenyl 89% 10-148%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

219 of 397

MC48470

44.34

Page 252: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: FIELD BLANK Lab Sample ID: MC48470-19 Date Sampled: 10/25/16 Matrix: AQ - Field Blank Water Date Received: 10/26/16 Method: CT-ETPH 7/06 SW846 3510C Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

File ID DF Analyzed By Prep Date Prep Batch Analytical BatchRun #1 IR3188.D 1 11/02/16 MD 11/01/16 OP49058 GIR220Run #2

Initial Volume Final VolumeRun #1 1000 ml 1.0 mlRun #2

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 0.10 mg/l

CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits

84-15-1 o-Terphenyl 71% 50-149%

ND = Not detected J = Indicates an estimated valueRL = Reporting Limit B = Indicates analyte found in associated method blankE = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound

220 of 397

MC48470

44.34

Page 253: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: FIELD BLANK Lab Sample ID: MC48470-19 Date Sampled: 10/25/16 Matrix: AQ - Field Blank Water Date Received: 10/26/16

Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

Total Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <50 50 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Copper <25 25 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.20 0.20 ug/l 1 10/31/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Zinc <20 20 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19575(2) Instrument QC Batch: MA19582(3) Prep QC Batch: MP26955(4) Prep QC Batch: MP26958

RL = Reporting Limit

221 of 397

MC48470

44.34

Page 254: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Report of Analysis Page 1 of 1

Client Sample ID: FIELD BLANK Lab Sample ID: MC48470-19F Date Sampled: 10/25/16 Matrix: AQ - Field Blank Filtered Date Received: 10/26/16

Percent Solids: n/a Project: Bridge 00488, Route 66, Windham, CT

Dissolved Metals Analysis

Analyte Result RL Units DF Prep Analyzed By Method Prep Method

Arsenic <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Barium <50 50 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Cadmium <4.0 4.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Chromium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Copper <25 25 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Lead <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Mercury <0.20 0.20 ug/l 1 10/31/16 10/31/16 EAL SW846 7470A 1 SW846 7470A 4

Selenium <10 10 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Silver <5.0 5.0 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

Zinc <20 20 ug/l 1 10/31/16 11/01/16 EAL SW846 6010C 2 SW846 3010A 3

(1) Instrument QC Batch: MA19575(2) Instrument QC Batch: MA19582(3) Prep QC Batch: MP26955(4) Prep QC Batch: MP26958

RL = Reporting Limit

222 of 397

MC48470

44.35

Page 255: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Misc. Forms

Custody Documents and Other Forms

Includes the following where applicable:

• Chain of Custody• RCP Form• Sample Tracking Chronicle• QC Evaluation: CT RCP Limits

New EnglandSection 5

223 of 397

MC48470

5

Page 256: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MC48470: Chain of CustodyPage 1 of 5

224 of 397

MC48470

55.1

Page 257: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MC48470: Chain of CustodyPage 2 of 5

225 of 397

MC48470

55.1

Page 258: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MC48470: Chain of CustodyPage 3 of 5

226 of 397

MC48470

55.1

Page 259: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest Sample Receipt Summary

Job Number: MC48470 Client: BL Companies

Date / Time Received: 10/26/2016 7:30:00 PM Delivery Method: SGS Courier

Project: BRIDGE 00488

Airbill #'s:

Cooler Security

1. Custody Seals Present:

Y or N

2. Custody Seals Intact:

3. COC Present:

4. Smpl Dates/Time OK

2. Cooler temp verification:

Cooler Temperature Y or N

1. Temp criteria achieved:

3. Cooler media:

IRGUN1

Ice (Bag)

Quality Control Preservation Y

1. Trip Blank present / cooler:

2. Trip Blank listed on COC:

3. Samples preserved properly:

4. VOCs headspace free:

Sample Integrity - Documentation Y or N

1. Sample labels present on bottles:

2. Container labeling complete:

3. Sample container label / COC agree:

Sample Integrity - Condition Y or N

1. Sample rec'd within HT:

3. Condition of sample:

2. All containers accounted for:

Sample Integrity - Instructions

1. Analysis requested is clear:

2. Bottles received for unspecified tests

3. Sufficient volume rec'd for analysis:

4. Compositing instructions clear:

5. Filtering instructions clear:

Intact

Y or N

Comments

-2 Labels have IDs "B-4/4-6", COC indicates "B-4/4-7"

-18 No vials for trip blank received. (one set received listed as -14 OK)

-19 Full set of water ( same volumes as -15 thru -17) with the ID "Field Blank" received, not listed on COC.

-15, -16, -17 ( and presumably -19 FB) request total metals but no HNO3 volume recd.

N N/A Y N N/A

Cooler Temps (Initial/Adjusted): #1: (1.3/1.3); #2: (1.7/1.7); #3: (1.3/1.3);

4. No. Coolers: 3

MC48470: Chain of CustodyPage 4 of 5

227 of 397

MC48470

55.1

Page 260: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Sample Receipt Summary - Problem Resolution

CSR: Jeremy Vienneau Response Date: 11/2/2016

Response: The client confirmed the ID for MC48470-2 should be "B-4/4-6". They would like us to analyze the trip blank MC48470-14 since SGS Accutest did not take the other trip blank at sample pick-up. The client would like to proceed with the Field Blank and also confirmed they were okay with aliquoting and preserving volume for total metals on samples -15, -16, -17 and -19. See phone log in file.

Job Number: MC48470

MC48470: Chain of CustodyPage 5 of 5

228 of 397

MC48470

55.1

Page 261: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Laboratory Name: Client:

Project Location: Project Number:

Sampling Date(s):

Laboratory Sample ID(s):

Methods:

1 Yes No

1A Yes No

1B Yes No

NA

2 Yes No

3 Yes No

4 Yes No

5 Yes No

Yes No

6 Yes No

7 Yes No

Authorized

Signature: Position: Lab Director

Printed Name: H. (Brad) Madadian Date:

Accutest New England

Are project-specific matrix spikes and laboratory duplicates included in this

data set?

Note: For all questions to which the response was "No" (with the exception of question #7), additional

information must be provided in an attached narrative. If the answer to question #1, #1A or #1B is "No", the

data package does not meet the requirements for "Reasonable Confidence".

I, the undersigned, attest under pains and penalties of perjury that, to the best of my knowledge and belief

and based upon my personal inquiry of those responsible for providing the information contained in this

analytical report, such information is accurate and complete.

Reza Tand

11/3/2016

Were all samples received by the laboratory in a condition consistent with

that described on the associated chain-of-custody document(s)?

Were samples received at an appropriate temperature (<6° C)?

Were all QA/QC performance criteria specified in the CTDEP Reasonable

Confidence Protocol documents achieved?

a) Were reporting limits specified or referenced on the chain-of-custody?

b) Were these reporting limits met?

For each analytical method referenced in this laboratory report package,

were results reported for all constituents identified in the method-specific

analyte lists presented in the Reasonable Confidence Protocol documents?

10/25/2016

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-

7, MC48470-8, MC48470-9, MC48470-10, MC48470-11, MC48470-12, MC48470-13,

MC48470-14, MC48470-15, MC48470-16, MC48470-17, MC48470-18, MC48470-19,

MC48470-1A, MC48470-2A, MC48470-3A, MC48470-4A, MC48470-5A, MC48470-6A,

MC48470-7A, MC48470-8A, MC48470-9A, MC48470-10A, MC48470-11A, MC48470-

12A, MC48470-15F, MC48470-16F, MC48470-17F, MC48470-19F, MC48470-13A

Refer to case narrative.

For each analytical method referenced in this laboratory report package, were all

specified QA/QC performance criteria followed, including the requirement to explain

any criteria falling outside of acceptable guidelines, as specified in the CTDEP method-

specific Reasonable Confidence Protocol

documents)?

Where all the method specified preservation and holding time requirements met?

VPH and EPH mehods only: Was the VPH or EPH method conducted without

significant modifications (See section 11.3 of respective methods)

Reasonable Confidence Protocol

Laboratory Analysis

QA/QC Certification Form

Accutest New England BL Companies

Bridge 00488, Route 66, Windham, CT 14EC0050

229 of 397

MC48470

55.2

Page 262: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Internal Sample Tracking Chronicle

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

SampleNumber Method Analyzed By Prepped By Test Codes

MC48470-1 Collected: 25-OCT-16 08:40 By: BZ Received: 26-OCT-16 By: BAB-4/0-2

MC48470-1 SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-1 SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-1 SW846 CHAP7 27-OCT-16 21:37 CF 27-OCT-16 HS CREACMC48470-1 SW846 6010C 31-OCT-16 13:08 EAL 28-OCT-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-1 SW846 9045D 31-OCT-16 16:12 EL PHMC48470-1 SW846 1020 01-NOV-16 HS IGNMC48470-1 SW846 7471B 01-NOV-16 11:06 EAL 31-OCT-16 EM HGMC48470-1 SW846 8260C 01-NOV-16 13:51 KP V8260RCPMC48470-1 SW846 8270D 01-NOV-16 18:53 MR 28-OCT-16 AJ AB8270RCPMC48470-1 CT-ETPH 7/06 01-NOV-16 19:31 MD 28-OCT-16 IC BCTTPHMC48470-1 SW846 8082A 01-NOV-16 20:30 TA 28-OCT-16 AJ P8082RCPMC48470-1 SW846 8081B 02-NOV-16 14:38 TA 28-OCT-16 AJ P8081RCP

MC48470-2 Collected: 25-OCT-16 08:50 By: BZ Received: 26-OCT-16 By: BAB-4/4-6

MC48470-2 SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-2 SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-2 SW846 CHAP7 27-OCT-16 21:37 CF 27-OCT-16 HS CREACMC48470-2 SW846 6010C 31-OCT-16 13:13 EAL 28-OCT-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-2 SW846 9045D 31-OCT-16 16:12 EL PHMC48470-2 SW846 8260C 31-OCT-16 20:35 KP V8260RCPMC48470-2 SW846 1020 01-NOV-16 HS IGNMC48470-2 SW846 7471B 01-NOV-16 11:08 EAL 31-OCT-16 EM HGMC48470-2 CT-ETPH 7/06 01-NOV-16 13:18 MD 28-OCT-16 IC BCTTPHMC48470-2 SW846 8270D 01-NOV-16 19:19 MR 28-OCT-16 AJ AB8270RCPMC48470-2 SW846 8082A 01-NOV-16 20:47 TA 28-OCT-16 AJ P8082RCPMC48470-2 SW846 8081B 02-NOV-16 03:34 TA 28-OCT-16 AJ P8081RCP

MC48470-3 Collected: 25-OCT-16 10:05 By: BZ Received: 26-OCT-16 By: BAB-6/0-2

MC48470-3 SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-3 SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-3 SW846 CHAP7 27-OCT-16 21:37 CF 27-OCT-16 HS CREACMC48470-3 SW846 6010C 31-OCT-16 13:18 EAL 28-OCT-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-3 SW846 9045D 31-OCT-16 16:12 EL PH

Page 1 of 10

230 of 397

MC48470

55.3

Page 263: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Internal Sample Tracking Chronicle

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

SampleNumber Method Analyzed By Prepped By Test Codes

MC48470-3 SW846 8260C 31-OCT-16 21:03 KP V8260RCPMC48470-3 SW846 1020 01-NOV-16 HS IGNMC48470-3 SW846 7471B 01-NOV-16 11:11 EAL 31-OCT-16 EM HGMC48470-3 CT-ETPH 7/06 01-NOV-16 14:51 MD 28-OCT-16 IC BCTTPHMC48470-3 SW846 8270D 01-NOV-16 19:45 MR 28-OCT-16 AJ AB8270RCPMC48470-3 SW846 8082A 01-NOV-16 21:03 TA 28-OCT-16 AJ P8082RCPMC48470-3 SW846 8081B 02-NOV-16 03:20 TA 28-OCT-16 AJ P8081RCP

MC48470-4 Collected: 25-OCT-16 10:15 By: BZ Received: 26-OCT-16 By: BAB-6/8-10

MC48470-4 SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-4 SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-4 SW846 CHAP7 27-OCT-16 21:37 CF 27-OCT-16 HS CREACMC48470-4 SW846 6010C 31-OCT-16 13:23 EAL 28-OCT-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-4 SW846 9045D 31-OCT-16 16:12 EL PHMC48470-4 SW846 1020 01-NOV-16 HS IGNMC48470-4 SW846 7471B 01-NOV-16 11:13 EAL 31-OCT-16 EM HGMC48470-4 SW846 8260C 01-NOV-16 14:19 KP V8260RCPMC48470-4 CT-ETPH 7/06 01-NOV-16 15:22 MD 28-OCT-16 IC BCTTPHMC48470-4 SW846 8270D 01-NOV-16 20:11 MR 28-OCT-16 AJ AB8270RCPMC48470-4 SW846 8082A 01-NOV-16 21:20 TA 28-OCT-16 AJ P8082RCPMC48470-4 SW846 8081B 02-NOV-16 03:06 TA 28-OCT-16 AJ P8081RCPMC48470-4 SW846 8260C 02-NOV-16 11:27 KP V8260RCP

MC48470-5 Collected: 25-OCT-16 10:55 By: BZ Received: 26-OCT-16 By: BAB-3/0-2

MC48470-5 SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-5 SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-5 SW846 CHAP7 27-OCT-16 21:37 CF 27-OCT-16 HS CREACMC48470-5 SW846 6010C 31-OCT-16 13:38 EAL 28-OCT-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-5 SW846 9045D 31-OCT-16 16:12 EL PHMC48470-5 SW846 1020 01-NOV-16 HS IGNMC48470-5 SW846 7471B 01-NOV-16 11:15 EAL 31-OCT-16 EM HGMC48470-5 SW846 8260C 01-NOV-16 14:47 KP V8260RCPMC48470-5 CT-ETPH 7/06 01-NOV-16 19:00 MD 28-OCT-16 IC BCTTPHMC48470-5 SW846 8270D 01-NOV-16 20:37 MR 28-OCT-16 AJ AB8270RCPMC48470-5 SW846 8082A 01-NOV-16 21:37 TA 28-OCT-16 AJ P8082RCPMC48470-5 SW846 8260C 02-NOV-16 11:56 KP V8260RCP

Page 2 of 10

231 of 397

MC48470

55.3

Page 264: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Internal Sample Tracking Chronicle

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

SampleNumber Method Analyzed By Prepped By Test Codes

MC48470-5 SW846 8081B 02-NOV-16 15:07 TA 28-OCT-16 AJ P8081RCP

MC48470-6 Collected: 25-OCT-16 11:00 By: BZ Received: 26-OCT-16 By: BAB-3/6-8

MC48470-6 SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-6 SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-6 SW846 CHAP7 27-OCT-16 21:41 CF 27-OCT-16 HS CREACMC48470-6 SW846 6010C 31-OCT-16 13:43 EAL 28-OCT-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-6 SW846 9045D 31-OCT-16 16:12 EL PHMC48470-6 SW846 1020 01-NOV-16 HS IGNMC48470-6 SW846 7471B 01-NOV-16 11:17 EAL 31-OCT-16 EM HGMC48470-6 SW846 8260C 01-NOV-16 15:15 KP V8260RCPMC48470-6 CT-ETPH 7/06 01-NOV-16 15:53 MD 28-OCT-16 IC BCTTPHMC48470-6 SW846 8270D 01-NOV-16 21:03 MR 28-OCT-16 AJ AB8270RCPMC48470-6 SW846 8082A 01-NOV-16 21:53 TA 28-OCT-16 AJ P8082RCPMC48470-6 SW846 8081B 02-NOV-16 02:51 TA 28-OCT-16 AJ P8081RCP

MC48470-7 Collected: 25-OCT-16 11:02 By: BZ Received: 26-OCT-16 By: BAB-3/10-12

MC48470-7 SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-7 SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-7 SW846 CHAP7 27-OCT-16 21:41 CF 27-OCT-16 HS CREACMC48470-7 SW846 6010C 31-OCT-16 13:48 EAL 28-OCT-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-7 SW846 9045D 31-OCT-16 16:12 EL PHMC48470-7 SW846 1020 01-NOV-16 HS IGNMC48470-7 SW846 7471B 01-NOV-16 11:20 EAL 31-OCT-16 EM HGMC48470-7 CT-ETPH 7/06 01-NOV-16 14:20 MD 28-OCT-16 IC BCTTPHMC48470-7 SW846 8260C 01-NOV-16 15:44 KP V8260RCPMC48470-7 SW846 8270D 01-NOV-16 21:28 MR 28-OCT-16 AJ AB8270RCPMC48470-7 SW846 8082A 01-NOV-16 22:27 TA 28-OCT-16 AJ P8082RCPMC48470-7 SW846 8081B 02-NOV-16 02:37 TA 28-OCT-16 AJ P8081RCPMC48470-7 SW846 8260C 02-NOV-16 12:24 KP V8260RCP

MC48470-8 Collected: 25-OCT-16 11:40 By: BZ Received: 26-OCT-16 By: BAB-2/0-2

MC48470-8 SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-8 SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREAC

Page 3 of 10

232 of 397

MC48470

55.3

Page 265: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Internal Sample Tracking Chronicle

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

SampleNumber Method Analyzed By Prepped By Test Codes

MC48470-8 SW846 CHAP7 27-OCT-16 21:41 CF 27-OCT-16 HS CREACMC48470-8 SW846 6010C 31-OCT-16 13:53 EAL 28-OCT-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-8 SW846 9045D 31-OCT-16 16:12 EL PHMC48470-8 SW846 1020 01-NOV-16 HS IGNMC48470-8 SW846 7471B 01-NOV-16 11:22 EAL 31-OCT-16 EM HGMC48470-8 SW846 8260C 01-NOV-16 16:12 KP V8260RCPMC48470-8 CT-ETPH 7/06 01-NOV-16 17:57 MD 28-OCT-16 IC BCTTPHMC48470-8 SW846 8270D 01-NOV-16 21:54 MR 28-OCT-16 AJ AB8270RCPMC48470-8 SW846 8082A 01-NOV-16 22:43 TA 28-OCT-16 AJ P8082RCPMC48470-8 SW846 8081B 02-NOV-16 02:22 TA 28-OCT-16 AJ P8081RCPMC48470-8 SW846 8260C 02-NOV-16 12:54 KP V8260RCP

MC48470-9 Collected: 25-OCT-16 11:50 By: BZ Received: 26-OCT-16 By: BAB-2/4-6

MC48470-9 SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-9 SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-9 SW846 CHAP7 27-OCT-16 21:41 CF 27-OCT-16 HS CREACMC48470-9 SW846 6010C 31-OCT-16 12:03 EAL 28-OCT-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-9 SW846 9045D 31-OCT-16 16:12 EL PHMC48470-9 SW846 1020 01-NOV-16 HS IGNMC48470-9 SW846 7471B 01-NOV-16 10:45 EAL 31-OCT-16 EM HGMC48470-9 CT-ETPH 7/06 01-NOV-16 13:49 MD 28-OCT-16 IC BCTTPHMC48470-9 SW846 8260C 01-NOV-16 16:40 KP V8260RCPMC48470-9 SW846 8270D 01-NOV-16 22:20 MR 28-OCT-16 AJ AB8270RCPMC48470-9 SW846 8082A 01-NOV-16 23:00 TA 28-OCT-16 AJ P8082RCPMC48470-9 SW846 8081B 02-NOV-16 02:08 TA 28-OCT-16 AJ P8081RCP

MC48470-10Collected: 25-OCT-16 12:25 By: BZ Received: 26-OCT-16 By: BAB-5/0-2

MC48470-10SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-10SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-10SW846 CHAP7 27-OCT-16 21:41 CF 27-OCT-16 HS CREACMC48470-10SW846 6010C 31-OCT-16 13:58 EAL 28-OCT-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-10SW846 9045D 31-OCT-16 16:12 EL PHMC48470-10SW846 1020 01-NOV-16 HS IGNMC48470-10SW846 7471B 01-NOV-16 11:29 EAL 31-OCT-16 EM HGMC48470-10CT-ETPH 7/06 01-NOV-16 16:24 MD 28-OCT-16 IC BCTTPHMC48470-10SW846 8260C 01-NOV-16 17:08 KP V8260RCP

Page 4 of 10

233 of 397

MC48470

55.3

Page 266: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Internal Sample Tracking Chronicle

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

SampleNumber Method Analyzed By Prepped By Test Codes

MC48470-10SW846 8270D 01-NOV-16 22:46 MR 28-OCT-16 AJ AB8270RCPMC48470-10SW846 8082A 01-NOV-16 23:16 TA 28-OCT-16 AJ P8082RCPMC48470-10SW846 8260C 02-NOV-16 13:23 KP V8260RCPMC48470-10SW846 8081B 02-NOV-16 15:51 TA 28-OCT-16 AJ P8081RCP

MC48470-11Collected: 25-OCT-16 12:35 By: BZ Received: 26-OCT-16 By: BAB-5/5-7

MC48470-11SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-11SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-11SW846 CHAP7 27-OCT-16 21:41 CF 27-OCT-16 HS CREACMC48470-11SW846 6010C 31-OCT-16 14:03 EAL 28-OCT-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-11SW846 9045D 31-OCT-16 16:12 EL PHMC48470-11SW846 1020 01-NOV-16 HS IGNMC48470-11SW846 7471B 01-NOV-16 11:31 EAL 31-OCT-16 EM HGMC48470-11CT-ETPH 7/06 01-NOV-16 16:55 MD 28-OCT-16 IC BCTTPHMC48470-11SW846 8260C 01-NOV-16 17:37 KP V8260RCPMC48470-11SW846 8270D 01-NOV-16 23:12 MR 28-OCT-16 AJ AB8270RCPMC48470-11SW846 8082A 01-NOV-16 23:33 TA 28-OCT-16 AJ P8082RCPMC48470-11SW846 8081B 02-NOV-16 15:36 TA 28-OCT-16 AJ P8081RCP

MC48470-12Collected: 25-OCT-16 13:00 By: BZ Received: 26-OCT-16 By: BADUP

MC48470-12SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-12SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-12SW846 CHAP7 27-OCT-16 21:41 CF 27-OCT-16 HS CREACMC48470-12SW846 9045D 31-OCT-16 16:12 EL PHMC48470-12SW846 1020 01-NOV-16 HS IGNMC48470-12SW846 7471B 01-NOV-16 11:33 EAL 31-OCT-16 EM HGMC48470-12CT-ETPH 7/06 01-NOV-16 17:26 MD 28-OCT-16 IC BCTTPHMC48470-12SW846 8260C 01-NOV-16 18:05 KP V8260RCPMC48470-12SW846 8270D 01-NOV-16 23:38 MR 28-OCT-16 AJ AB8270RCPMC48470-12SW846 8082A 01-NOV-16 23:49 TA 28-OCT-16 AJ P8082RCPMC48470-12SW846 6010C 02-NOV-16 11:52 EAL 01-NOV-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-12SW846 8260C 02-NOV-16 13:53 KP V8260RCPMC48470-12SW846 8081B 02-NOV-16 15:22 TA 28-OCT-16 AJ P8081RCP

Page 5 of 10

234 of 397

MC48470

55.3

Page 267: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Internal Sample Tracking Chronicle

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

SampleNumber Method Analyzed By Prepped By Test Codes

MC48470-13Collected: 25-OCT-16 13:40 By: BZ Received: 26-OCT-16 By: BAB-1/0-2

MC48470-13SM 2540G-97 MOD 27-OCT-16 EAL %SOLMC48470-13SW846 CHAP7 27-OCT-16 CF 27-OCT-16 HS SREACMC48470-13SW846 CHAP7 27-OCT-16 21:41 CF 27-OCT-16 HS CREACMC48470-13SW846 9045D 31-OCT-16 16:12 EL PHMC48470-13SW846 1020 01-NOV-16 HS IGNMC48470-13SW846 7471B 01-NOV-16 11:35 EAL 31-OCT-16 EM HGMC48470-13SW846 8260C 01-NOV-16 18:33 KP V8260RCPMC48470-13CT-ETPH 7/06 01-NOV-16 20:02 MD 28-OCT-16 IC BCTTPHMC48470-13SW846 8270D 02-NOV-16 00:04 MR 28-OCT-16 AJ AB8270RCPMC48470-13SW846 8082A 02-NOV-16 00:06 TA 28-OCT-16 AJ P8082RCPMC48470-13SW846 8270D 02-NOV-16 11:19 MR 28-OCT-16 AJ AB8270RCPMC48470-13SW846 8260C 02-NOV-16 14:23 KP V8260RCPMC48470-13SW846 6010C 02-NOV-16 14:25 EAL 01-NOV-16 EM AG,AS,BA,CD,CR,PB,SEMC48470-13SW846 8081B 02-NOV-16 14:53 TA 28-OCT-16 AJ P8081RCP

MC48470-14Collected: 25-OCT-16 00:00 By: BZ Received: 26-OCT-16 By: BATRIP BLANK

MC48470-14SW846 8260C 01-NOV-16 01:02 CB V8260RCP

MC48470-15Collected: 25-OCT-16 09:50 By: BZ Received: 26-OCT-16 By: BAMW/B-4

MC48470-15SW846 7470A 31-OCT-16 15:56 EAL 31-OCT-16 EM HGMC48470-15SW846 8260C 01-NOV-16 02:25 CB V8260RCPMC48470-15SW846 8270D BY SIM 01-NOV-16 19:23 AA 01-NOV-16 JM B8270SIMPAHMC48470-15SW846 6010C 01-NOV-16 20:51 EAL 31-OCT-16 EM AG,AS,BA,CD,CR,CU,PB,SE,ZNMC48470-15SW846 8270D 02-NOV-16 01:48 MR 01-NOV-16 PA AB8270RCP-PAHMC48470-15SW846 8081B 02-NOV-16 09:35 TA 31-OCT-16 PA P8081RCPMC48470-15SW846 8082A 02-NOV-16 12:21 TA 31-OCT-16 PA P8082RCPMC48470-15CT-ETPH 7/06 02-NOV-16 12:46 MD 01-NOV-16 AJ BCTTPH

MC48470-16Collected: 25-OCT-16 11:45 By: BZ Received: 26-OCT-16 By: BAMW/B-3

MC48470-16SW846 7470A 31-OCT-16 16:00 EAL 31-OCT-16 EM HG

Page 6 of 10

235 of 397

MC48470

55.3

Page 268: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Internal Sample Tracking Chronicle

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

SampleNumber Method Analyzed By Prepped By Test Codes

MC48470-16SW846 8260C 01-NOV-16 02:53 CB V8260RCPMC48470-16SW846 8270D BY SIM 01-NOV-16 19:49 AA 01-NOV-16 JM B8270SIMPAHMC48470-16SW846 6010C 01-NOV-16 21:01 EAL 31-OCT-16 EM AG,AS,BA,CD,CR,CU,PB,SE,ZNMC48470-16SW846 8270D 02-NOV-16 02:14 MR 01-NOV-16 PA AB8270RCP-PAHMC48470-16SW846 8081B 02-NOV-16 09:49 TA 31-OCT-16 PA P8081RCPMC48470-16SW846 8082A 02-NOV-16 12:37 TA 31-OCT-16 PA P8082RCPMC48470-16CT-ETPH 7/06 02-NOV-16 13:15 MD 01-NOV-16 AJ BCTTPH

MC48470-17Collected: 25-OCT-16 12:00 By: BZ Received: 26-OCT-16 By: BADUP

MC48470-17SW846 7470A 31-OCT-16 16:05 EAL 31-OCT-16 EM HGMC48470-17SW846 8260C 01-NOV-16 03:20 CB V8260RCPMC48470-17SW846 8270D BY SIM 01-NOV-16 20:15 AA 01-NOV-16 JM B8270SIMPAHMC48470-17SW846 6010C 01-NOV-16 21:11 EAL 31-OCT-16 EM AG,AS,BA,CD,CR,CU,PB,SE,ZNMC48470-17SW846 8270D 02-NOV-16 02:40 MR 01-NOV-16 PA AB8270RCP-PAHMC48470-17SW846 8081B 02-NOV-16 10:03 TA 31-OCT-16 PA P8081RCPMC48470-17SW846 8082A 02-NOV-16 12:53 TA 31-OCT-16 PA P8082RCPMC48470-17CT-ETPH 7/06 02-NOV-16 13:44 MD 01-NOV-16 AJ BCTTPH

MC48470-19Collected: 25-OCT-16 09:20 By: BZ Received: 26-OCT-16 By: BAFIELD BLANK

MC48470-19SW846 7470A 31-OCT-16 16:14 EAL 31-OCT-16 EM HGMC48470-19SW846 8260C 01-NOV-16 01:29 CB V8260RCPMC48470-19SW846 8270D BY SIM 01-NOV-16 20:40 AA 01-NOV-16 JM B8270SIMPAHMC48470-19SW846 6010C 01-NOV-16 21:21 EAL 31-OCT-16 EM AG,AS,BA,CD,CR,CU,PB,SE,ZNMC48470-19SW846 8270D 02-NOV-16 03:06 MR 01-NOV-16 PA AB8270RCP-PAHMC48470-19SW846 8081B 02-NOV-16 10:18 TA 31-OCT-16 PA P8081RCPMC48470-19SW846 8082A 02-NOV-16 13:08 TA 31-OCT-16 PA P8082RCPMC48470-19CT-ETPH 7/06 02-NOV-16 14:12 MD 01-NOV-16 AJ BCTTPH

MC48470-1ACollected: 25-OCT-16 08:40 By: BZ Received: 26-OCT-16 By: BAB-4/0-2

MC48470-1ASW846 7470A 31-OCT-16 13:39 EAL 28-OCT-16 EM EHGMC48470-1ASW846 6010C 02-NOV-16 12:38 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

Page 7 of 10

236 of 397

MC48470

55.3

Page 269: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Internal Sample Tracking Chronicle

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

SampleNumber Method Analyzed By Prepped By Test Codes

MC48470-2ACollected: 25-OCT-16 08:50 By: BZ Received: 26-OCT-16 By: BAB-4/4-6

MC48470-2ASW846 7470A 31-OCT-16 13:44 EAL 28-OCT-16 EM EHGMC48470-2ASW846 6010C 02-NOV-16 13:13 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-3ACollected: 25-OCT-16 10:05 By: BZ Received: 26-OCT-16 By: BAB-6/0-2

MC48470-3ASW846 7470A 31-OCT-16 13:51 EAL 28-OCT-16 EM EHGMC48470-3ASW846 6010C 02-NOV-16 13:18 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-4ACollected: 25-OCT-16 10:15 By: BZ Received: 26-OCT-16 By: BAB-6/8-10

MC48470-4ASW846 7470A 31-OCT-16 13:53 EAL 28-OCT-16 EM EHGMC48470-4ASW846 6010C 02-NOV-16 13:24 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-5ACollected: 25-OCT-16 10:55 By: BZ Received: 26-OCT-16 By: BAB-3/0-2

MC48470-5ASW846 7470A 31-OCT-16 13:55 EAL 28-OCT-16 EM EHGMC48470-5ASW846 6010C 02-NOV-16 13:29 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-6ACollected: 25-OCT-16 11:00 By: BZ Received: 26-OCT-16 By: BAB-3/6-8

MC48470-6ASW846 7470A 31-OCT-16 13:58 EAL 28-OCT-16 EM EHGMC48470-6ASW846 6010C 02-NOV-16 13:34 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-7ACollected: 25-OCT-16 11:02 By: BZ Received: 26-OCT-16 By: BAB-3/10-12

MC48470-7ASW846 7470A 31-OCT-16 14:00 EAL 28-OCT-16 EM EHGMC48470-7ASW846 6010C 02-NOV-16 13:39 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-8ACollected: 25-OCT-16 11:40 By: BZ Received: 26-OCT-16 By: BAB-2/0-2

Page 8 of 10

237 of 397

MC48470

55.3

Page 270: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Internal Sample Tracking Chronicle

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

SampleNumber Method Analyzed By Prepped By Test Codes

MC48470-8ASW846 7470A 31-OCT-16 14:02 EAL 28-OCT-16 EM EHGMC48470-8ASW846 6010C 02-NOV-16 13:44 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-9ACollected: 25-OCT-16 11:50 By: BZ Received: 26-OCT-16 By: BAB-2/4-6

MC48470-9ASW846 7470A 31-OCT-16 14:04 EAL 28-OCT-16 EM EHGMC48470-9ASW846 6010C 02-NOV-16 13:49 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-10ACollected: 25-OCT-16 12:25 By: BZ Received: 26-OCT-16 By: BAB-5/0-2

MC48470-10ASW846 7470A 31-OCT-16 14:07 EAL 28-OCT-16 EM EHGMC48470-10ASW846 6010C 02-NOV-16 14:04 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-11ACollected: 25-OCT-16 12:35 By: BZ Received: 26-OCT-16 By: BAB-5/5-7

MC48470-11ASW846 7470A 31-OCT-16 14:09 EAL 28-OCT-16 EM EHGMC48470-11ASW846 6010C 02-NOV-16 14:09 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-12ACollected: 25-OCT-16 13:00 By: BZ Received: 26-OCT-16 By: BADUP

MC48470-12ASW846 7470A 31-OCT-16 14:11 EAL 28-OCT-16 EM EHGMC48470-12ASW846 6010C 02-NOV-16 14:14 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-13ACollected: 25-OCT-16 13:40 By: BZ Received: 26-OCT-16 By: BAB-1/0-2

MC48470-13ASW846 7470A 31-OCT-16 14:18 EAL 28-OCT-16 EM EHGMC48470-13ASW846 6010C 02-NOV-16 14:19 EAL 28-OCT-16 EM EAG,EAS,EBA,ECD,ECR,EPB,ESE

MC48470-15FCollected: 25-OCT-16 09:50 By: BZ Received: 26-OCT-16 By: BAMW/B-4

MC48470-15FSW846 7470A 31-OCT-16 15:58 EAL 31-OCT-16 EM HGMC48470-15FSW846 6010C 01-NOV-16 20:56 EAL 31-OCT-16 EM AG,AS,BA,CD,CR,CU,PB,SE,ZN

Page 9 of 10

238 of 397

MC48470

55.3

Page 271: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Internal Sample Tracking Chronicle

BL CompaniesJob No: MC48470

Bridge 00488, Route 66, Windham, CTProject No: 14EC0050

SampleNumber Method Analyzed By Prepped By Test Codes

MC48470-16FCollected: 25-OCT-16 11:45 By: BZ Received: 26-OCT-16 By: BAMW/B-3

MC48470-16FSW846 7470A 31-OCT-16 16:03 EAL 31-OCT-16 EM HGMC48470-16FSW846 6010C 01-NOV-16 21:06 EAL 31-OCT-16 EM AG,AS,BA,CD,CR,CU,PB,SE,ZN

MC48470-17FCollected: 25-OCT-16 12:00 By: BZ Received: 26-OCT-16 By: BADUP

MC48470-17FSW846 7470A 31-OCT-16 16:07 EAL 31-OCT-16 EM HGMC48470-17FSW846 6010C 01-NOV-16 21:16 EAL 31-OCT-16 EM AG,AS,BA,CD,CR,CU,PB,SE,ZN

MC48470-19FCollected: 25-OCT-16 09:20 By: BZ Received: 26-OCT-16 By: BAFIELD BLANK

MC48470-19FSW846 7470A 31-OCT-16 16:16 EAL 31-OCT-16 EM HGMC48470-19FSW846 6010C 01-NOV-16 21:36 EAL 31-OCT-16 EM AG,AS,BA,CD,CR,CU,PB,SE,ZN

Page 10 of 10

239 of 397

MC48470

55.3

Page 272: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 1 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MSM2925 SW846 8260C

MSM2925-BS 67-64-1 Acetone BSP REC 180 a % 70-130MSM2925-BS 107-13-1 Acrylonitrile BSP REC 106 % 70-130MSM2925-BS 71-43-2 Benzene BSP REC 102 % 70-130MSM2925-BS 108-86-1 Bromobenzene BSP REC 97 % 70-130MSM2925-BS 75-27-4 Bromodichloromethane BSP REC 102 % 70-130MSM2925-BS 75-25-2 Bromoform BSP REC 91 % 70-130MSM2925-BS 74-83-9 Bromomethane BSP REC 76 % 70-130MSM2925-BS 78-93-3 2-Butanone (MEK) BSP REC 151 % 70-130MSM2925-BS 104-51-8 n-Butylbenzene BSP REC 104 % 70-130MSM2925-BS 135-98-8 sec-Butylbenzene BSP REC 98 % 70-130MSM2925-BS 98-06-6 tert-Butylbenzene BSP REC 96 % 70-130MSM2925-BS 75-15-0 Carbon disulfide BSP REC 126 % 70-130MSM2925-BS 56-23-5 Carbon tetrachloride BSP REC 103 % 70-130MSM2925-BS 108-90-7 Chlorobenzene BSP REC 96 % 70-130MSM2925-BS 75-00-3 Chloroethane BSP REC 69 % 70-130MSM2925-BS 67-66-3 Chloroform BSP REC 110 % 70-130MSM2925-BS 74-87-3 Chloromethane BSP REC 100 % 70-130MSM2925-BS 95-49-8 o-Chlorotoluene BSP REC 100 % 70-130MSM2925-BS 106-43-4 p-Chlorotoluene BSP REC 100 % 70-130MSM2925-BS 96-12-8 1,2-Dibromo-3-chloropropane BSP REC 93 % 70-130MSM2925-BS 124-48-1 Dibromochloromethane BSP REC 92 % 70-130MSM2925-BS 106-93-4 1,2-Dibromoethane BSP REC 93 % 70-130MSM2925-BS 95-50-1 1,2-Dichlorobenzene BSP REC 94 % 70-130MSM2925-BS 541-73-1 1,3-Dichlorobenzene BSP REC 99 % 70-130MSM2925-BS 106-46-7 1,4-Dichlorobenzene BSP REC 97 % 70-130MSM2925-BS 75-71-8 Dichlorodifluoromethane BSP REC 99 % 70-130MSM2925-BS 75-34-3 1,1-Dichloroethane BSP REC 106 % 70-130MSM2925-BS 107-06-2 1,2-Dichloroethane BSP REC 104 % 70-130MSM2925-BS 75-35-4 1,1-Dichloroethene BSP REC 112 % 70-130MSM2925-BS 156-59-2 cis-1,2-Dichloroethene BSP REC 114 % 70-130MSM2925-BS 156-60-5 trans-1,2-Dichloroethene BSP REC 107 % 70-130MSM2925-BS 78-87-5 1,2-Dichloropropane BSP REC 99 % 70-130MSM2925-BS 142-28-9 1,3-Dichloropropane BSP REC 102 % 70-130MSM2925-BS 594-20-7 2,2-Dichloropropane BSP REC 116 % 70-130MSM2925-BS 563-58-6 1,1-Dichloropropene BSP REC 110 % 70-130MSM2925-BS 10061-01-5 cis-1,3-Dichloropropene BSP REC 97 % 70-130MSM2925-BS 10061-02-6 trans-1,3-Dichloropropene BSP REC 100 % 70-130MSM2925-BS 100-41-4 Ethylbenzene BSP REC 98 % 70-130MSM2925-BS 76-13-1 Freon 113 BSP REC 119 % 70-130MSM2925-BS 87-68-3 Hexachlorobutadiene BSP REC 97 % 70-130MSM2925-BS 591-78-6 2-Hexanone BSP REC 123 % 70-130MSM2925-BS 98-82-8 Isopropylbenzene BSP REC 95 % 70-130

* Sample used for QC is not from job MC48470

240 of 397

MC48470

55.4

Page 273: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 2 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MSM2925-BS 99-87-6 p-Isopropyltoluene BSP REC 102 % 70-130MSM2925-BS 1634-04-4 Methyl Tert Butyl Ether BSP REC 106 % 70-130MSM2925-BS 108-10-1 4-Methyl-2-pentanone (MIBK) BSP REC 96 % 70-130MSM2925-BS 74-95-3 Methylene bromide BSP REC 97 % 70-130MSM2925-BS 75-09-2 Methylene chloride BSP REC 107 % 70-130MSM2925-BS 91-20-3 Naphthalene BSP REC 81 % 70-130MSM2925-BS 103-65-1 n-Propylbenzene BSP REC 100 % 70-130MSM2925-BS 100-42-5 Styrene BSP REC 95 % 70-130MSM2925-BS 630-20-6 1,1,1,2-Tetrachloroethane BSP REC 96 % 70-130MSM2925-BS 79-34-5 1,1,2,2-Tetrachloroethane BSP REC 99 % 70-130MSM2925-BS 127-18-4 Tetrachloroethene BSP REC 98 % 70-130MSM2925-BS 109-99-9 Tetrahydrofuran BSP REC 96 % 70-130MSM2925-BS 108-88-3 Toluene BSP REC 107 % 70-130MSM2925-BS 110-57-6 Trans-1,4-Dichloro-2-Butene BSP REC 98 % 70-130MSM2925-BS 87-61-6 1,2,3-Trichlorobenzene BSP REC 92 % 70-130MSM2925-BS 120-82-1 1,2,4-Trichlorobenzene BSP REC 90 % 70-130MSM2925-BS 71-55-6 1,1,1-Trichloroethane BSP REC 111 % 70-130MSM2925-BS 79-00-5 1,1,2-Trichloroethane BSP REC 101 % 70-130MSM2925-BS 79-01-6 Trichloroethene BSP REC 98 % 70-130MSM2925-BS 75-69-4 Trichlorofluoromethane BSP REC 86 % 70-130MSM2925-BS 96-18-4 1,2,3-Trichloropropane BSP REC 97 % 70-130MSM2925-BS 95-63-6 1,2,4-Trimethylbenzene BSP REC 101 % 70-130MSM2925-BS 108-67-8 1,3,5-Trimethylbenzene BSP REC 105 % 70-130MSM2925-BS 75-01-4 Vinyl chloride BSP REC 83 % 70-130MSM2925-BS m,p-Xylene BSP REC 99 % 70-130MSM2925-BS 95-47-6 o-Xylene BSP REC 94 % 70-130MSM2925-BS 1868-53-7 Dibromofluoromethane BSP SURR 113 % 70-130MSM2925-BS 2037-26-5 Toluene-D8 BSP SURR 102 % 70-130MSM2925-BS 460-00-4 4-Bromofluorobenzene BSP SURR 96 % 70-130MSM2925-MB 1868-53-7 Dibromofluoromethane MB SURR 140 % 70-130MSM2925-MB 2037-26-5 Toluene-D8 MB SURR 104 % 70-130MSM2925-MB 460-00-4 4-Bromofluorobenzene MB SURR 97 % 70-130MC48470-2 1868-53-7 Dibromofluoromethane SAMP SURR 117 % 70-130MC48470-2 2037-26-5 Toluene-D8 SAMP SURR 103 % 70-130MC48470-2 460-00-4 4-Bromofluorobenzene SAMP SURR 99 % 70-130MC48470-3 1868-53-7 Dibromofluoromethane SAMP SURR 122 % 70-130MC48470-3 2037-26-5 Toluene-D8 SAMP SURR 104 % 70-130MC48470-3 460-00-4 4-Bromofluorobenzene SAMP SURR 96 % 70-130

MSM2926 SW846 8260C

MSM2926-BS 67-64-1 Acetone BSP REC 372 a % 70-130MSM2926-BS 107-13-1 Acrylonitrile BSP REC 109 % 70-130MSM2926-BS 71-43-2 Benzene BSP REC 105 % 70-130MSM2926-BS 108-86-1 Bromobenzene BSP REC 105 % 70-130

* Sample used for QC is not from job MC48470

241 of 397

MC48470

55.4

Page 274: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 3 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MSM2926-BS 75-27-4 Bromodichloromethane BSP REC 104 % 70-130MSM2926-BS 75-25-2 Bromoform BSP REC 95 % 70-130MSM2926-BS 74-83-9 Bromomethane BSP REC 72 % 70-130MSM2926-BS 78-93-3 2-Butanone (MEK) BSP REC 159 b % 70-130MSM2926-BS 104-51-8 n-Butylbenzene BSP REC 111 % 70-130MSM2926-BS 135-98-8 sec-Butylbenzene BSP REC 105 % 70-130MSM2926-BS 98-06-6 tert-Butylbenzene BSP REC 101 % 70-130MSM2926-BS 75-15-0 Carbon disulfide BSP REC 126 % 70-130MSM2926-BS 56-23-5 Carbon tetrachloride BSP REC 107 % 70-130MSM2926-BS 108-90-7 Chlorobenzene BSP REC 102 % 70-130MSM2926-BS 75-00-3 Chloroethane BSP REC 70 % 70-130MSM2926-BS 67-66-3 Chloroform BSP REC 110 % 70-130MSM2926-BS 74-87-3 Chloromethane BSP REC 95 % 70-130MSM2926-BS 95-49-8 o-Chlorotoluene BSP REC 106 % 70-130MSM2926-BS 106-43-4 p-Chlorotoluene BSP REC 105 % 70-130MSM2926-BS 96-12-8 1,2-Dibromo-3-chloropropane BSP REC 94 % 70-130MSM2926-BS 124-48-1 Dibromochloromethane BSP REC 96 % 70-130MSM2926-BS 106-93-4 1,2-Dibromoethane BSP REC 98 % 70-130MSM2926-BS 95-50-1 1,2-Dichlorobenzene BSP REC 100 % 70-130MSM2926-BS 541-73-1 1,3-Dichlorobenzene BSP REC 105 % 70-130MSM2926-BS 106-46-7 1,4-Dichlorobenzene BSP REC 102 % 70-130MSM2926-BS 75-71-8 Dichlorodifluoromethane BSP REC 84 % 70-130MSM2926-BS 75-34-3 1,1-Dichloroethane BSP REC 105 % 70-130MSM2926-BS 107-06-2 1,2-Dichloroethane BSP REC 105 % 70-130MSM2926-BS 75-35-4 1,1-Dichloroethene BSP REC 114 % 70-130MSM2926-BS 156-59-2 cis-1,2-Dichloroethene BSP REC 116 % 70-130MSM2926-BS 156-60-5 trans-1,2-Dichloroethene BSP REC 109 % 70-130MSM2926-BS 78-87-5 1,2-Dichloropropane BSP REC 103 % 70-130MSM2926-BS 142-28-9 1,3-Dichloropropane BSP REC 105 % 70-130MSM2926-BS 594-20-7 2,2-Dichloropropane BSP REC 115 % 70-130MSM2926-BS 563-58-6 1,1-Dichloropropene BSP REC 112 % 70-130MSM2926-BS 10061-01-5 cis-1,3-Dichloropropene BSP REC 100 % 70-130MSM2926-BS 10061-02-6 trans-1,3-Dichloropropene BSP REC 103 % 70-130MSM2926-BS 100-41-4 Ethylbenzene BSP REC 105 % 70-130MSM2926-BS 76-13-1 Freon 113 BSP REC 121 % 70-130MSM2926-BS 87-68-3 Hexachlorobutadiene BSP REC 103 % 70-130MSM2926-BS 591-78-6 2-Hexanone BSP REC 130 % 70-130MSM2926-BS 98-82-8 Isopropylbenzene BSP REC 102 % 70-130MSM2926-BS 99-87-6 p-Isopropyltoluene BSP REC 109 % 70-130MSM2926-BS 1634-04-4 Methyl Tert Butyl Ether BSP REC 108 % 70-130MSM2926-BS 108-10-1 4-Methyl-2-pentanone (MIBK) BSP REC 101 % 70-130MSM2926-BS 74-95-3 Methylene bromide BSP REC 102 % 70-130MSM2926-BS 75-09-2 Methylene chloride BSP REC 112 % 70-130MSM2926-BS 91-20-3 Naphthalene BSP REC 87 % 70-130MSM2926-BS 103-65-1 n-Propylbenzene BSP REC 106 % 70-130

* Sample used for QC is not from job MC48470

242 of 397

MC48470

55.4

Page 275: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 4 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MSM2926-BS 100-42-5 Styrene BSP REC 102 % 70-130MSM2926-BS 630-20-6 1,1,1,2-Tetrachloroethane BSP REC 102 % 70-130MSM2926-BS 79-34-5 1,1,2,2-Tetrachloroethane BSP REC 102 % 70-130MSM2926-BS 127-18-4 Tetrachloroethene BSP REC 103 % 70-130MSM2926-BS 109-99-9 Tetrahydrofuran BSP REC 95 % 70-130MSM2926-BS 108-88-3 Toluene BSP REC 103 % 70-130MSM2926-BS 110-57-6 Trans-1,4-Dichloro-2-Butene BSP REC 99 % 70-130MSM2926-BS 87-61-6 1,2,3-Trichlorobenzene BSP REC 100 % 70-130MSM2926-BS 120-82-1 1,2,4-Trichlorobenzene BSP REC 98 % 70-130MSM2926-BS 71-55-6 1,1,1-Trichloroethane BSP REC 110 % 70-130MSM2926-BS 79-00-5 1,1,2-Trichloroethane BSP REC 103 % 70-130MSM2926-BS 79-01-6 Trichloroethene BSP REC 102 % 70-130MSM2926-BS 75-69-4 Trichlorofluoromethane BSP REC 84 % 70-130MSM2926-BS 96-18-4 1,2,3-Trichloropropane BSP REC 100 % 70-130MSM2926-BS 95-63-6 1,2,4-Trimethylbenzene BSP REC 107 % 70-130MSM2926-BS 108-67-8 1,3,5-Trimethylbenzene BSP REC 111 % 70-130MSM2926-BS 75-01-4 Vinyl chloride BSP REC 81 % 70-130MSM2926-BS m,p-Xylene BSP REC 107 % 70-130MSM2926-BS 95-47-6 o-Xylene BSP REC 101 % 70-130MSM2926-BS 1868-53-7 Dibromofluoromethane BSP SURR 107 % 70-130MSM2926-BS 2037-26-5 Toluene-D8 BSP SURR 102 % 70-130MSM2926-BS 460-00-4 4-Bromofluorobenzene BSP SURR 94 % 70-130MSM2926-MB 1868-53-7 Dibromofluoromethane MB SURR 138 % 70-130MSM2926-MB 2037-26-5 Toluene-D8 MB SURR 104 % 70-130MSM2926-MB 460-00-4 4-Bromofluorobenzene MB SURR 96 % 70-130MC48470-1 1868-53-7 Dibromofluoromethane SAMP SURR 149 c % 70-130MC48470-1 2037-26-5 Toluene-D8 SAMP SURR 106 % 70-130MC48470-1 460-00-4 4-Bromofluorobenzene SAMP SURR 113 % 70-130MC48470-4 1868-53-7 Dibromofluoromethane SAMP SURR 147 d % 70-130MC48470-4 2037-26-5 Toluene-D8 SAMP SURR 110 % 70-130MC48470-4 460-00-4 4-Bromofluorobenzene SAMP SURR 104 % 70-130MC48470-5 1868-53-7 Dibromofluoromethane SAMP SURR 153 c % 70-130MC48470-5 2037-26-5 Toluene-D8 SAMP SURR 109 % 70-130MC48470-5 460-00-4 4-Bromofluorobenzene SAMP SURR 117 % 70-130MC48470-6 1868-53-7 Dibromofluoromethane SAMP SURR 152 c % 70-130MC48470-6 2037-26-5 Toluene-D8 SAMP SURR 110 % 70-130MC48470-6 460-00-4 4-Bromofluorobenzene SAMP SURR 96 % 70-130MC48470-7 1868-53-7 Dibromofluoromethane SAMP SURR 157 c % 70-130MC48470-7 2037-26-5 Toluene-D8 SAMP SURR 111 % 70-130MC48470-7 460-00-4 4-Bromofluorobenzene SAMP SURR 95 % 70-130MC48470-8 1868-53-7 Dibromofluoromethane SAMP SURR 166 c % 70-130MC48470-8 2037-26-5 Toluene-D8 SAMP SURR 111 % 70-130MC48470-8 460-00-4 4-Bromofluorobenzene SAMP SURR 94 % 70-130MC48470-9 1868-53-7 Dibromofluoromethane SAMP SURR 159 c % 70-130MC48470-9 2037-26-5 Toluene-D8 SAMP SURR 112 % 70-130

* Sample used for QC is not from job MC48470

243 of 397

MC48470

55.4

Page 276: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 5 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MC48470-9 460-00-4 4-Bromofluorobenzene SAMP SURR 93 % 70-130MC48470-10 1868-53-7 Dibromofluoromethane SAMP SURR 156 c % 70-130MC48470-10 2037-26-5 Toluene-D8 SAMP SURR 108 % 70-130MC48470-10 460-00-4 4-Bromofluorobenzene SAMP SURR 110 % 70-130MC48470-11 1868-53-7 Dibromofluoromethane SAMP SURR 160 c % 70-130MC48470-11 2037-26-5 Toluene-D8 SAMP SURR 110 % 70-130MC48470-11 460-00-4 4-Bromofluorobenzene SAMP SURR 97 % 70-130MC48470-12 1868-53-7 Dibromofluoromethane SAMP SURR 176 c % 70-130MC48470-12 2037-26-5 Toluene-D8 SAMP SURR 113 % 70-130MC48470-12 460-00-4 4-Bromofluorobenzene SAMP SURR 94 % 70-130MC48470-13 1868-53-7 Dibromofluoromethane SAMP SURR 165 c % 70-130MC48470-13 2037-26-5 Toluene-D8 SAMP SURR 110 % 70-130MC48470-13 460-00-4 4-Bromofluorobenzene SAMP SURR 121 % 70-130

MSM2927 SW846 8260C

MSM2927-BS 67-64-1 Acetone BSP REC 191 a % 70-130MSM2927-BS 107-13-1 Acrylonitrile BSP REC 114 % 70-130MSM2927-BS 71-43-2 Benzene BSP REC 109 % 70-130MSM2927-BS 108-86-1 Bromobenzene BSP REC 103 % 70-130MSM2927-BS 75-27-4 Bromodichloromethane BSP REC 109 % 70-130MSM2927-BS 75-25-2 Bromoform BSP REC 94 % 70-130MSM2927-BS 74-83-9 Bromomethane BSP REC 86 % 70-130MSM2927-BS 78-93-3 2-Butanone (MEK) BSP REC 162 a % 70-130MSM2927-BS 104-51-8 n-Butylbenzene BSP REC 112 % 70-130MSM2927-BS 135-98-8 sec-Butylbenzene BSP REC 106 % 70-130MSM2927-BS 98-06-6 tert-Butylbenzene BSP REC 103 % 70-130MSM2927-BS 75-15-0 Carbon disulfide BSP REC 133 % 70-130MSM2927-BS 56-23-5 Carbon tetrachloride BSP REC 114 % 70-130MSM2927-BS 108-90-7 Chlorobenzene BSP REC 99 % 70-130MSM2927-BS 75-00-3 Chloroethane BSP REC 77 % 70-130MSM2927-BS 67-66-3 Chloroform BSP REC 118 % 70-130MSM2927-BS 74-87-3 Chloromethane BSP REC 96 % 70-130MSM2927-BS 95-49-8 o-Chlorotoluene BSP REC 108 % 70-130MSM2927-BS 106-43-4 p-Chlorotoluene BSP REC 105 % 70-130MSM2927-BS 96-12-8 1,2-Dibromo-3-chloropropane BSP REC 99 % 70-130MSM2927-BS 124-48-1 Dibromochloromethane BSP REC 97 % 70-130MSM2927-BS 106-93-4 1,2-Dibromoethane BSP REC 98 % 70-130MSM2927-BS 95-50-1 1,2-Dichlorobenzene BSP REC 102 % 70-130MSM2927-BS 541-73-1 1,3-Dichlorobenzene BSP REC 105 % 70-130MSM2927-BS 106-46-7 1,4-Dichlorobenzene BSP REC 103 % 70-130MSM2927-BS 75-71-8 Dichlorodifluoromethane BSP REC 82 % 70-130MSM2927-BS 75-34-3 1,1-Dichloroethane BSP REC 113 % 70-130MSM2927-BS 107-06-2 1,2-Dichloroethane BSP REC 112 % 70-130MSM2927-BS 75-35-4 1,1-Dichloroethene BSP REC 122 % 70-130

* Sample used for QC is not from job MC48470

244 of 397

MC48470

55.4

Page 277: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 6 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MSM2927-BS 156-59-2 cis-1,2-Dichloroethene BSP REC 122 % 70-130MSM2927-BS 156-60-5 trans-1,2-Dichloroethene BSP REC 114 % 70-130MSM2927-BS 78-87-5 1,2-Dichloropropane BSP REC 107 % 70-130MSM2927-BS 142-28-9 1,3-Dichloropropane BSP REC 107 % 70-130MSM2927-BS 594-20-7 2,2-Dichloropropane BSP REC 128 % 70-130MSM2927-BS 563-58-6 1,1-Dichloropropene BSP REC 115 % 70-130MSM2927-BS 10061-01-5 cis-1,3-Dichloropropene BSP REC 101 % 70-130MSM2927-BS 10061-02-6 trans-1,3-Dichloropropene BSP REC 108 % 70-130MSM2927-BS 100-41-4 Ethylbenzene BSP REC 103 % 70-130MSM2927-BS 76-13-1 Freon 113 BSP REC 133 % 70-130MSM2927-BS 87-68-3 Hexachlorobutadiene BSP REC 106 % 70-130MSM2927-BS 591-78-6 2-Hexanone BSP REC 129 % 70-130MSM2927-BS 98-82-8 Isopropylbenzene BSP REC 102 % 70-130MSM2927-BS 99-87-6 p-Isopropyltoluene BSP REC 109 % 70-130MSM2927-BS 1634-04-4 Methyl Tert Butyl Ether BSP REC 113 % 70-130MSM2927-BS 108-10-1 4-Methyl-2-pentanone (MIBK) BSP REC 102 % 70-130MSM2927-BS 74-95-3 Methylene bromide BSP REC 106 % 70-130MSM2927-BS 75-09-2 Methylene chloride BSP REC 119 % 70-130MSM2927-BS 91-20-3 Naphthalene BSP REC 88 % 70-130MSM2927-BS 103-65-1 n-Propylbenzene BSP REC 107 % 70-130MSM2927-BS 100-42-5 Styrene BSP REC 100 % 70-130MSM2927-BS 630-20-6 1,1,1,2-Tetrachloroethane BSP REC 103 % 70-130MSM2927-BS 79-34-5 1,1,2,2-Tetrachloroethane BSP REC 106 % 70-130MSM2927-BS 127-18-4 Tetrachloroethene BSP REC 100 % 70-130MSM2927-BS 109-99-9 Tetrahydrofuran BSP REC 100 % 70-130MSM2927-BS 108-88-3 Toluene BSP REC 110 % 70-130MSM2927-BS 110-57-6 Trans-1,4-Dichloro-2-Butene BSP REC 102 % 70-130MSM2927-BS 87-61-6 1,2,3-Trichlorobenzene BSP REC 102 % 70-130MSM2927-BS 120-82-1 1,2,4-Trichlorobenzene BSP REC 98 % 70-130MSM2927-BS 71-55-6 1,1,1-Trichloroethane BSP REC 122 % 70-130MSM2927-BS 79-00-5 1,1,2-Trichloroethane BSP REC 109 % 70-130MSM2927-BS 79-01-6 Trichloroethene BSP REC 103 % 70-130MSM2927-BS 75-69-4 Trichlorofluoromethane BSP REC 93 % 70-130MSM2927-BS 96-18-4 1,2,3-Trichloropropane BSP REC 103 % 70-130MSM2927-BS 95-63-6 1,2,4-Trimethylbenzene BSP REC 108 % 70-130MSM2927-BS 108-67-8 1,3,5-Trimethylbenzene BSP REC 113 % 70-130MSM2927-BS 75-01-4 Vinyl chloride BSP REC 83 % 70-130MSM2927-BS m,p-Xylene BSP REC 104 % 70-130MSM2927-BS 95-47-6 o-Xylene BSP REC 100 % 70-130MSM2927-BS 1868-53-7 Dibromofluoromethane BSP SURR 114 % 70-130MSM2927-BS 2037-26-5 Toluene-D8 BSP SURR 103 % 70-130MSM2927-BS 460-00-4 4-Bromofluorobenzene BSP SURR 94 % 70-130MSM2927-MB 1868-53-7 Dibromofluoromethane MB SURR 143 c % 70-130MSM2927-MB 2037-26-5 Toluene-D8 MB SURR 105 % 70-130MSM2927-MB 460-00-4 4-Bromofluorobenzene MB SURR 97 % 70-130

* Sample used for QC is not from job MC48470

245 of 397

MC48470

55.4

Page 278: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 7 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MC48470-4 1868-53-7 Dibromofluoromethane SAMP SURR 142 d % 70-130MC48470-4 2037-26-5 Toluene-D8 SAMP SURR 108 % 70-130MC48470-4 460-00-4 4-Bromofluorobenzene SAMP SURR 107 % 70-130MC48470-5 1868-53-7 Dibromofluoromethane SAMP SURR 146 c % 70-130MC48470-5 2037-26-5 Toluene-D8 SAMP SURR 105 % 70-130MC48470-5 460-00-4 4-Bromofluorobenzene SAMP SURR 97 % 70-130MC48470-7 1868-53-7 Dibromofluoromethane SAMP SURR 150 c % 70-130MC48470-7 2037-26-5 Toluene-D8 SAMP SURR 107 % 70-130MC48470-7 460-00-4 4-Bromofluorobenzene SAMP SURR 96 % 70-130MC48470-8 1868-53-7 Dibromofluoromethane SAMP SURR 158 c % 70-130MC48470-8 2037-26-5 Toluene-D8 SAMP SURR 109 % 70-130MC48470-8 460-00-4 4-Bromofluorobenzene SAMP SURR 92 % 70-130MC48470-10 1868-53-7 Dibromofluoromethane SAMP SURR 176 c % 70-130MC48470-10 2037-26-5 Toluene-D8 SAMP SURR 109 % 70-130MC48470-10 460-00-4 4-Bromofluorobenzene SAMP SURR 104 % 70-130MC48470-12 1868-53-7 Dibromofluoromethane SAMP SURR 166 c % 70-130MC48470-12 2037-26-5 Toluene-D8 SAMP SURR 109 % 70-130MC48470-12 460-00-4 4-Bromofluorobenzene SAMP SURR 91 % 70-130MC48470-13 1868-53-7 Dibromofluoromethane SAMP SURR 163 c % 70-130MC48470-13 2037-26-5 Toluene-D8 SAMP SURR 108 % 70-130MC48470-13 460-00-4 4-Bromofluorobenzene SAMP SURR 118 % 70-130

MSN3894 SW846 8260C

MSN3894-BS 67-64-1 Acetone BSP REC 92 % 70-130MSN3894-BS 107-13-1 Acrylonitrile BSP REC 82 % 70-130MSN3894-BS 71-43-2 Benzene BSP REC 90 % 70-130MSN3894-BS 108-86-1 Bromobenzene BSP REC 99 % 70-130MSN3894-BS 75-27-4 Bromodichloromethane BSP REC 101 % 70-130MSN3894-BS 75-25-2 Bromoform BSP REC 94 % 70-130MSN3894-BS 74-83-9 Bromomethane BSP REC 76 % 70-130MSN3894-BS 78-93-3 2-Butanone (MEK) BSP REC 81 % 70-130MSN3894-BS 104-51-8 n-Butylbenzene BSP REC 110 % 70-130MSN3894-BS 135-98-8 sec-Butylbenzene BSP REC 106 % 70-130MSN3894-BS 98-06-6 tert-Butylbenzene BSP REC 104 % 70-130MSN3894-BS 75-15-0 Carbon disulfide BSP REC 77 % 70-130MSN3894-BS 56-23-5 Carbon tetrachloride BSP REC 99 % 70-130MSN3894-BS 108-90-7 Chlorobenzene BSP REC 103 % 70-130MSN3894-BS 75-00-3 Chloroethane BSP REC 78 % 70-130MSN3894-BS 67-66-3 Chloroform BSP REC 92 % 70-130MSN3894-BS 74-87-3 Chloromethane BSP REC 80 % 70-130MSN3894-BS 95-49-8 o-Chlorotoluene BSP REC 94 % 70-130MSN3894-BS 106-43-4 p-Chlorotoluene BSP REC 96 % 70-130MSN3894-BS 96-12-8 1,2-Dibromo-3-chloropropane BSP REC 87 % 70-130MSN3894-BS 124-48-1 Dibromochloromethane BSP REC 109 % 70-130

* Sample used for QC is not from job MC48470

246 of 397

MC48470

55.4

Page 279: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 8 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MSN3894-BS 106-93-4 1,2-Dibromoethane BSP REC 103 % 70-130MSN3894-BS 95-50-1 1,2-Dichlorobenzene BSP REC 101 % 70-130MSN3894-BS 541-73-1 1,3-Dichlorobenzene BSP REC 97 % 70-130MSN3894-BS 106-46-7 1,4-Dichlorobenzene BSP REC 98 % 70-130MSN3894-BS 75-71-8 Dichlorodifluoromethane BSP REC 90 % 70-130MSN3894-BS 75-34-3 1,1-Dichloroethane BSP REC 82 % 70-130MSN3894-BS 107-06-2 1,2-Dichloroethane BSP REC 94 % 70-130MSN3894-BS 75-35-4 1,1-Dichloroethene BSP REC 84 % 70-130MSN3894-BS 156-59-2 cis-1,2-Dichloroethene BSP REC 94 % 70-130MSN3894-BS 156-60-5 trans-1,2-Dichloroethene BSP REC 79 % 70-130MSN3894-BS 78-87-5 1,2-Dichloropropane BSP REC 94 % 70-130MSN3894-BS 142-28-9 1,3-Dichloropropane BSP REC 103 % 70-130MSN3894-BS 594-20-7 2,2-Dichloropropane BSP REC 87 % 70-130MSN3894-BS 563-58-6 1,1-Dichloropropene BSP REC 102 % 70-130MSN3894-BS 10061-01-5 cis-1,3-Dichloropropene BSP REC 99 % 70-130MSN3894-BS 10061-02-6 trans-1,3-Dichloropropene BSP REC 92 % 70-130MSN3894-BS 100-41-4 Ethylbenzene BSP REC 105 % 70-130MSN3894-BS 76-13-1 Freon 113 BSP REC 94 % 70-130MSN3894-BS 87-68-3 Hexachlorobutadiene BSP REC 123 % 70-130MSN3894-BS 591-78-6 2-Hexanone BSP REC 96 % 70-130MSN3894-BS 98-82-8 Isopropylbenzene BSP REC 98 % 70-130MSN3894-BS 99-87-6 p-Isopropyltoluene BSP REC 107 % 70-130MSN3894-BS 1634-04-4 Methyl Tert Butyl Ether BSP REC 93 % 70-130MSN3894-BS 108-10-1 4-Methyl-2-pentanone (MIBK) BSP REC 88 % 70-130MSN3894-BS 74-95-3 Methylene bromide BSP REC 96 % 70-130MSN3894-BS 75-09-2 Methylene chloride BSP REC 81 % 70-130MSN3894-BS 91-20-3 Naphthalene BSP REC 101 % 70-130MSN3894-BS 103-65-1 n-Propylbenzene BSP REC 95 % 70-130MSN3894-BS 100-42-5 Styrene BSP REC 112 % 70-130MSN3894-BS 630-20-6 1,1,1,2-Tetrachloroethane BSP REC 112 % 70-130MSN3894-BS 79-34-5 1,1,2,2-Tetrachloroethane BSP REC 91 % 70-130MSN3894-BS 127-18-4 Tetrachloroethene BSP REC 112 % 70-130MSN3894-BS 109-99-9 Tetrahydrofuran BSP REC 75 % 70-130MSN3894-BS 108-88-3 Toluene BSP REC 98 % 70-130MSN3894-BS 110-57-6 Trans-1,4-Dichloro-2-Butene BSP REC 100 % 70-130MSN3894-BS 87-61-6 1,2,3-Trichlorobenzene BSP REC 110 % 70-130MSN3894-BS 120-82-1 1,2,4-Trichlorobenzene BSP REC 107 % 70-130MSN3894-BS 71-55-6 1,1,1-Trichloroethane BSP REC 96 % 70-130MSN3894-BS 79-00-5 1,1,2-Trichloroethane BSP REC 100 % 70-130MSN3894-BS 79-01-6 Trichloroethene BSP REC 99 % 70-130MSN3894-BS 75-69-4 Trichlorofluoromethane BSP REC 89 % 70-130MSN3894-BS 96-18-4 1,2,3-Trichloropropane BSP REC 88 % 70-130MSN3894-BS 95-63-6 1,2,4-Trimethylbenzene BSP REC 98 % 70-130MSN3894-BS 108-67-8 1,3,5-Trimethylbenzene BSP REC 102 % 70-130MSN3894-BS 75-01-4 Vinyl chloride BSP REC 72 % 70-130

* Sample used for QC is not from job MC48470

247 of 397

MC48470

55.4

Page 280: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 9 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MSN3894-BS m,p-Xylene BSP REC 106 % 70-130MSN3894-BS 95-47-6 o-Xylene BSP REC 108 % 70-130MSN3894-BS 1868-53-7 Dibromofluoromethane BSP SURR 98 % 70-130MSN3894-BS 2037-26-5 Toluene-D8 BSP SURR 102 % 70-130MSN3894-BS 460-00-4 4-Bromofluorobenzene BSP SURR 95 % 70-130MSN3894-BSD 67-64-1 Acetone BSD REC 84 % 70-130MSN3894-BSD 67-64-1 Acetone BSD RPD 9 % 20MSN3894-BSD 107-13-1 Acrylonitrile BSD REC 80 % 70-130MSN3894-BSD 107-13-1 Acrylonitrile BSD RPD 3 % 20MSN3894-BSD 71-43-2 Benzene BSD REC 92 % 70-130MSN3894-BSD 71-43-2 Benzene BSD RPD 2 % 20MSN3894-BSD 108-86-1 Bromobenzene BSD REC 101 % 70-130MSN3894-BSD 108-86-1 Bromobenzene BSD RPD 2 % 20MSN3894-BSD 75-27-4 Bromodichloromethane BSD REC 102 % 70-130MSN3894-BSD 75-27-4 Bromodichloromethane BSD RPD 1 % 20MSN3894-BSD 75-25-2 Bromoform BSD REC 93 % 70-130MSN3894-BSD 75-25-2 Bromoform BSD RPD 1 % 20MSN3894-BSD 74-83-9 Bromomethane BSD REC 76 % 70-130MSN3894-BSD 74-83-9 Bromomethane BSD RPD 1 % 20MSN3894-BSD 78-93-3 2-Butanone (MEK) BSD REC 79 % 70-130MSN3894-BSD 78-93-3 2-Butanone (MEK) BSD RPD 3 % 20MSN3894-BSD 104-51-8 n-Butylbenzene BSD REC 111 % 70-130MSN3894-BSD 104-51-8 n-Butylbenzene BSD RPD 1 % 20MSN3894-BSD 135-98-8 sec-Butylbenzene BSD REC 108 % 70-130MSN3894-BSD 135-98-8 sec-Butylbenzene BSD RPD 1 % 20MSN3894-BSD 98-06-6 tert-Butylbenzene BSD REC 106 % 70-130MSN3894-BSD 98-06-6 tert-Butylbenzene BSD RPD 2 % 20MSN3894-BSD 75-15-0 Carbon disulfide BSD REC 78 % 70-130MSN3894-BSD 75-15-0 Carbon disulfide BSD RPD 1 % 20MSN3894-BSD 56-23-5 Carbon tetrachloride BSD REC 101 % 70-130MSN3894-BSD 56-23-5 Carbon tetrachloride BSD RPD 2 % 20MSN3894-BSD 108-90-7 Chlorobenzene BSD REC 102 % 70-130MSN3894-BSD 108-90-7 Chlorobenzene BSD RPD 1 % 20MSN3894-BSD 75-00-3 Chloroethane BSD REC 79 % 70-130MSN3894-BSD 75-00-3 Chloroethane BSD RPD 2 % 20MSN3894-BSD 67-66-3 Chloroform BSD REC 92 % 70-130MSN3894-BSD 67-66-3 Chloroform BSD RPD 0 % 20MSN3894-BSD 74-87-3 Chloromethane BSD REC 80 % 70-130MSN3894-BSD 74-87-3 Chloromethane BSD RPD 0 % 20MSN3894-BSD 95-49-8 o-Chlorotoluene BSD REC 97 % 70-130MSN3894-BSD 95-49-8 o-Chlorotoluene BSD RPD 3 % 20MSN3894-BSD 106-43-4 p-Chlorotoluene BSD REC 97 % 70-130MSN3894-BSD 106-43-4 p-Chlorotoluene BSD RPD 1 % 20MSN3894-BSD 96-12-8 1,2-Dibromo-3-chloropropane BSD REC 89 % 70-130MSN3894-BSD 96-12-8 1,2-Dibromo-3-chloropropane BSD RPD 2 % 20

* Sample used for QC is not from job MC48470

248 of 397

MC48470

55.4

Page 281: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 10 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MSN3894-BSD 124-48-1 Dibromochloromethane BSD REC 107 % 70-130MSN3894-BSD 124-48-1 Dibromochloromethane BSD RPD 2 % 20MSN3894-BSD 106-93-4 1,2-Dibromoethane BSD REC 101 % 70-130MSN3894-BSD 106-93-4 1,2-Dibromoethane BSD RPD 2 % 20MSN3894-BSD 95-50-1 1,2-Dichlorobenzene BSD REC 103 % 70-130MSN3894-BSD 95-50-1 1,2-Dichlorobenzene BSD RPD 2 % 20MSN3894-BSD 541-73-1 1,3-Dichlorobenzene BSD REC 98 % 70-130MSN3894-BSD 541-73-1 1,3-Dichlorobenzene BSD RPD 1 % 20MSN3894-BSD 106-46-7 1,4-Dichlorobenzene BSD REC 99 % 70-130MSN3894-BSD 106-46-7 1,4-Dichlorobenzene BSD RPD 1 % 20MSN3894-BSD 75-71-8 Dichlorodifluoromethane BSD REC 90 % 70-130MSN3894-BSD 75-71-8 Dichlorodifluoromethane BSD RPD 0 % 20MSN3894-BSD 75-34-3 1,1-Dichloroethane BSD REC 83 % 70-130MSN3894-BSD 75-34-3 1,1-Dichloroethane BSD RPD 0 % 20MSN3894-BSD 107-06-2 1,2-Dichloroethane BSD REC 95 % 70-130MSN3894-BSD 107-06-2 1,2-Dichloroethane BSD RPD 1 % 20MSN3894-BSD 75-35-4 1,1-Dichloroethene BSD REC 84 % 70-130MSN3894-BSD 75-35-4 1,1-Dichloroethene BSD RPD 0 % 20MSN3894-BSD 156-59-2 cis-1,2-Dichloroethene BSD REC 93 % 70-130MSN3894-BSD 156-59-2 cis-1,2-Dichloroethene BSD RPD 0 % 20MSN3894-BSD 156-60-5 trans-1,2-Dichloroethene BSD REC 79 % 70-130MSN3894-BSD 156-60-5 trans-1,2-Dichloroethene BSD RPD 0 % 20MSN3894-BSD 78-87-5 1,2-Dichloropropane BSD REC 94 % 70-130MSN3894-BSD 78-87-5 1,2-Dichloropropane BSD RPD 0 % 20MSN3894-BSD 142-28-9 1,3-Dichloropropane BSD REC 102 % 70-130MSN3894-BSD 142-28-9 1,3-Dichloropropane BSD RPD 1 % 20MSN3894-BSD 594-20-7 2,2-Dichloropropane BSD REC 87 % 70-130MSN3894-BSD 594-20-7 2,2-Dichloropropane BSD RPD 1 % 20MSN3894-BSD 563-58-6 1,1-Dichloropropene BSD REC 104 % 70-130MSN3894-BSD 563-58-6 1,1-Dichloropropene BSD RPD 2 % 20MSN3894-BSD 10061-01-5 cis-1,3-Dichloropropene BSD REC 101 % 70-130MSN3894-BSD 10061-01-5 cis-1,3-Dichloropropene BSD RPD 2 % 20MSN3894-BSD 10061-02-6 trans-1,3-Dichloropropene BSD REC 93 % 70-130MSN3894-BSD 10061-02-6 trans-1,3-Dichloropropene BSD RPD 0 % 20MSN3894-BSD 100-41-4 Ethylbenzene BSD REC 104 % 70-130MSN3894-BSD 100-41-4 Ethylbenzene BSD RPD 1 % 20MSN3894-BSD 76-13-1 Freon 113 BSD REC 94 % 70-130MSN3894-BSD 76-13-1 Freon 113 BSD RPD 0 % 20MSN3894-BSD 87-68-3 Hexachlorobutadiene BSD REC 126 % 70-130MSN3894-BSD 87-68-3 Hexachlorobutadiene BSD RPD 2 % 20MSN3894-BSD 591-78-6 2-Hexanone BSD REC 93 % 70-130MSN3894-BSD 591-78-6 2-Hexanone BSD RPD 3 % 20MSN3894-BSD 98-82-8 Isopropylbenzene BSD REC 101 % 70-130MSN3894-BSD 98-82-8 Isopropylbenzene BSD RPD 3 % 20MSN3894-BSD 99-87-6 p-Isopropyltoluene BSD REC 108 % 70-130

* Sample used for QC is not from job MC48470

249 of 397

MC48470

55.4

Page 282: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 11 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MSN3894-BSD 99-87-6 p-Isopropyltoluene BSD RPD 1 % 20MSN3894-BSD 1634-04-4 Methyl Tert Butyl Ether BSD REC 93 % 70-130MSN3894-BSD 1634-04-4 Methyl Tert Butyl Ether BSD RPD 0 % 20MSN3894-BSD 108-10-1 4-Methyl-2-pentanone (MIBK) BSD REC 88 % 70-130MSN3894-BSD 108-10-1 4-Methyl-2-pentanone (MIBK) BSD RPD 0 % 20MSN3894-BSD 74-95-3 Methylene bromide BSD REC 98 % 70-130MSN3894-BSD 74-95-3 Methylene bromide BSD RPD 2 % 20MSN3894-BSD 75-09-2 Methylene chloride BSD REC 80 % 70-130MSN3894-BSD 75-09-2 Methylene chloride BSD RPD 1 % 20MSN3894-BSD 91-20-3 Naphthalene BSD REC 102 % 70-130MSN3894-BSD 91-20-3 Naphthalene BSD RPD 1 % 20MSN3894-BSD 103-65-1 n-Propylbenzene BSD REC 98 % 70-130MSN3894-BSD 103-65-1 n-Propylbenzene BSD RPD 3 % 20MSN3894-BSD 100-42-5 Styrene BSD REC 110 % 70-130MSN3894-BSD 100-42-5 Styrene BSD RPD 2 % 20MSN3894-BSD 630-20-6 1,1,1,2-Tetrachloroethane BSD REC 111 % 70-130MSN3894-BSD 630-20-6 1,1,1,2-Tetrachloroethane BSD RPD 1 % 20MSN3894-BSD 79-34-5 1,1,2,2-Tetrachloroethane BSD REC 91 % 70-130MSN3894-BSD 79-34-5 1,1,2,2-Tetrachloroethane BSD RPD 1 % 20MSN3894-BSD 127-18-4 Tetrachloroethene BSD REC 111 % 70-130MSN3894-BSD 127-18-4 Tetrachloroethene BSD RPD 1 % 20MSN3894-BSD 109-99-9 Tetrahydrofuran BSD REC 75 % 70-130MSN3894-BSD 109-99-9 Tetrahydrofuran BSD RPD 0 % 20MSN3894-BSD 108-88-3 Toluene BSD REC 100 % 70-130MSN3894-BSD 108-88-3 Toluene BSD RPD 2 % 20MSN3894-BSD 110-57-6 Trans-1,4-Dichloro-2-Butene BSD REC 96 % 70-130MSN3894-BSD 110-57-6 Trans-1,4-Dichloro-2-Butene BSD RPD 4 % 20MSN3894-BSD 87-61-6 1,2,3-Trichlorobenzene BSD REC 112 % 70-130MSN3894-BSD 87-61-6 1,2,3-Trichlorobenzene BSD RPD 2 % 25MSN3894-BSD 120-82-1 1,2,4-Trichlorobenzene BSD REC 110 % 70-130MSN3894-BSD 120-82-1 1,2,4-Trichlorobenzene BSD RPD 3 % 20MSN3894-BSD 71-55-6 1,1,1-Trichloroethane BSD REC 97 % 70-130MSN3894-BSD 71-55-6 1,1,1-Trichloroethane BSD RPD 1 % 20MSN3894-BSD 79-00-5 1,1,2-Trichloroethane BSD REC 99 % 70-130MSN3894-BSD 79-00-5 1,1,2-Trichloroethane BSD RPD 0 % 20MSN3894-BSD 79-01-6 Trichloroethene BSD REC 100 % 70-130MSN3894-BSD 79-01-6 Trichloroethene BSD RPD 2 % 20MSN3894-BSD 75-69-4 Trichlorofluoromethane BSD REC 90 % 70-130MSN3894-BSD 75-69-4 Trichlorofluoromethane BSD RPD 1 % 20MSN3894-BSD 96-18-4 1,2,3-Trichloropropane BSD REC 87 % 70-130MSN3894-BSD 96-18-4 1,2,3-Trichloropropane BSD RPD 1 % 20MSN3894-BSD 95-63-6 1,2,4-Trimethylbenzene BSD REC 99 % 70-130MSN3894-BSD 95-63-6 1,2,4-Trimethylbenzene BSD RPD 2 % 20MSN3894-BSD 108-67-8 1,3,5-Trimethylbenzene BSD REC 104 % 70-130MSN3894-BSD 108-67-8 1,3,5-Trimethylbenzene BSD RPD 2 % 20

* Sample used for QC is not from job MC48470

250 of 397

MC48470

55.4

Page 283: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 12 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MSN3894-BSD 75-01-4 Vinyl chloride BSD REC 73 % 70-130MSN3894-BSD 75-01-4 Vinyl chloride BSD RPD 1 % 20MSN3894-BSD m,p-Xylene BSD REC 104 % 70-130MSN3894-BSD m,p-Xylene BSD RPD 2 % 20MSN3894-BSD 95-47-6 o-Xylene BSD REC 107 % 70-130MSN3894-BSD 95-47-6 o-Xylene BSD RPD 1 % 20MSN3894-BSD 1868-53-7 Dibromofluoromethane BSD SURR 95 % 70-130MSN3894-BSD 2037-26-5 Toluene-D8 BSD SURR 101 % 70-130MSN3894-BSD 460-00-4 4-Bromofluorobenzene BSD SURR 96 % 70-130MSN3894-MB 1868-53-7 Dibromofluoromethane MB SURR 98 % 70-130MSN3894-MB 2037-26-5 Toluene-D8 MB SURR 101 % 70-130MSN3894-MB 460-00-4 4-Bromofluorobenzene MB SURR 95 % 70-130MC48470-14 1868-53-7 Dibromofluoromethane SAMP SURR 99 % 70-130MC48470-14 2037-26-5 Toluene-D8 SAMP SURR 101 % 70-130MC48470-14 460-00-4 4-Bromofluorobenzene SAMP SURR 97 % 70-130MC48470-15 1868-53-7 Dibromofluoromethane SAMP SURR 99 % 70-130MC48470-15 2037-26-5 Toluene-D8 SAMP SURR 102 % 70-130MC48470-15 460-00-4 4-Bromofluorobenzene SAMP SURR 97 % 70-130MC48470-16 1868-53-7 Dibromofluoromethane SAMP SURR 99 % 70-130MC48470-16 2037-26-5 Toluene-D8 SAMP SURR 100 % 70-130MC48470-16 460-00-4 4-Bromofluorobenzene SAMP SURR 95 % 70-130MC48470-17 1868-53-7 Dibromofluoromethane SAMP SURR 98 % 70-130MC48470-17 2037-26-5 Toluene-D8 SAMP SURR 100 % 70-130MC48470-17 460-00-4 4-Bromofluorobenzene SAMP SURR 93 % 70-130MC48470-19 1868-53-7 Dibromofluoromethane SAMP SURR 99 % 70-130MC48470-19 2037-26-5 Toluene-D8 SAMP SURR 101 % 70-130MC48470-19 460-00-4 4-Bromofluorobenzene SAMP SURR 94 % 70-130

OP49038 SW846 8270D

OP49038-BS 95-57-8 2-Chlorophenol BSP REC 69 % 30-130OP49038-BS 59-50-7 4-Chloro-3-methyl phenol BSP REC 78 % 30-130OP49038-BS 120-83-2 2,4-Dichlorophenol BSP REC 78 % 30-130OP49038-BS 105-67-9 2,4-Dimethylphenol BSP REC 74 % 30-130OP49038-BS 51-28-5 2,4-Dinitrophenol BSP REC 31 % 30-130OP49038-BS 534-52-1 4,6-Dinitro-o-cresol BSP REC 63 % 30-130OP49038-BS 95-48-7 2-Methylphenol BSP REC 70 % 30-130OP49038-BS 106-44-5 4-Methylphenol BSP REC 74 % 30-130OP49038-BS 88-75-5 2-Nitrophenol BSP REC 75 % 30-130OP49038-BS 100-02-7 4-Nitrophenol BSP REC 89 % 30-130OP49038-BS 87-86-5 Pentachlorophenol BSP REC 74 % 30-130OP49038-BS 108-95-2 Phenol BSP REC 74 % 30-130OP49038-BS 95-95-4 2,4,5-Trichlorophenol BSP REC 83 % 30-130OP49038-BS 88-06-2 2,4,6-Trichlorophenol BSP REC 78 % 30-130OP49038-BS 83-32-9 Acenaphthene BSP REC 73 % 40-140

* Sample used for QC is not from job MC48470

251 of 397

MC48470

55.4

Page 284: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 13 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

OP49038-BS 208-96-8 Acenaphthylene BSP REC 66 % 40-140OP49038-BS 62-53-3 Aniline BSP REC 33 % 40-140OP49038-BS 120-12-7 Anthracene BSP REC 74 % 40-140OP49038-BS 56-55-3 Benzo(a)anthracene BSP REC 74 % 40-140OP49038-BS 50-32-8 Benzo(a)pyrene BSP REC 75 % 40-140OP49038-BS 205-99-2 Benzo(b)fluoranthene BSP REC 76 % 40-140OP49038-BS 191-24-2 Benzo(g,h,i)perylene BSP REC 85 % 40-140OP49038-BS 207-08-9 Benzo(k)fluoranthene BSP REC 75 % 40-140OP49038-BS 101-55-3 4-Bromophenyl phenyl ether BSP REC 87 % 40-140OP49038-BS 85-68-7 Butyl benzyl phthalate BSP REC 85 % 40-140OP49038-BS 91-58-7 2-Chloronaphthalene BSP REC 74 % 40-140OP49038-BS 106-47-8 4-Chloroaniline BSP REC 32 % 40-140OP49038-BS 86-74-8 Carbazole BSP REC 75 % 40-140OP49038-BS 218-01-9 Chrysene BSP REC 74 % 40-140OP49038-BS 111-91-1 bis(2-Chloroethoxy)methane BSP REC 66 % 40-140OP49038-BS 111-44-4 bis(2-Chloroethyl)ether BSP REC 69 % 40-140OP49038-BS 108-60-1 bis(2-Chloroisopropyl)ether BSP REC 74 % 40-140OP49038-BS 7005-72-3 4-Chlorophenyl phenyl ether BSP REC 86 % 40-140OP49038-BS 121-14-2 2,4-Dinitrotoluene BSP REC 82 % 40-140OP49038-BS 606-20-2 2,6-Dinitrotoluene BSP REC 78 % 40-140OP49038-BS 91-94-1 3,3'-Dichlorobenzidine BSP REC 40 % 40-140OP49038-BS 53-70-3 Dibenzo(a,h)anthracene BSP REC 84 % 40-140OP49038-BS 132-64-9 Dibenzofuran BSP REC 74 % 40-140OP49038-BS 84-74-2 Di-n-butyl phthalate BSP REC 88 % 40-140OP49038-BS 117-84-0 Di-n-octyl phthalate BSP REC 84 % 40-140OP49038-BS 84-66-2 Diethyl phthalate BSP REC 85 % 40-140OP49038-BS 131-11-3 Dimethyl phthalate BSP REC 83 % 40-140OP49038-BS 117-81-7 bis(2-Ethylhexyl)phthalate BSP REC 86 % 40-140OP49038-BS 206-44-0 Fluoranthene BSP REC 79 % 40-140OP49038-BS 86-73-7 Fluorene BSP REC 80 % 40-140OP49038-BS 118-74-1 Hexachlorobenzene BSP REC 81 % 40-140OP49038-BS 87-68-3 Hexachlorobutadiene BSP REC 70 % 40-140OP49038-BS 77-47-4 Hexachlorocyclopentadiene BSP REC 64 % 40-140OP49038-BS 67-72-1 Hexachloroethane BSP REC 62 % 40-140OP49038-BS 193-39-5 Indeno(1,2,3-cd)pyrene BSP REC 80 % 40-140OP49038-BS 78-59-1 Isophorone BSP REC 69 % 40-140OP49038-BS 91-57-6 2-Methylnaphthalene BSP REC 74 % 40-140OP49038-BS 88-74-4 2-Nitroaniline BSP REC 72 % 40-140OP49038-BS 99-09-2 3-Nitroaniline BSP REC 48 % 40-140OP49038-BS 100-01-6 4-Nitroaniline BSP REC 64 % 40-140OP49038-BS 91-20-3 Naphthalene BSP REC 103 % 40-140OP49038-BS 98-95-3 Nitrobenzene BSP REC 68 % 40-140OP49038-BS 621-64-7 N-Nitroso-di-n-propylamine BSP REC 74 % 40-140OP49038-BS 86-30-6 N-Nitrosodiphenylamine BSP REC 71 % 40-140OP49038-BS 82-68-8 Pentachloronitrobenzene BSP REC 82 % 40-140

* Sample used for QC is not from job MC48470

252 of 397

MC48470

55.4

Page 285: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 14 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

OP49038-BS 85-01-8 Phenanthrene BSP REC 77 % 40-140OP49038-BS 129-00-0 Pyrene BSP REC 77 % 40-140OP49038-BS 110-86-1 Pyridine BSP REC 43 % 40-140OP49038-BS 95-94-3 1,2,4,5-Tetrachlorobenzene BSP REC 71 % 40-140OP49038-BS 120-82-1 1,2,4-Trichlorobenzene BSP REC 74 % 40-140OP49038-BS 367-12-4 2-Fluorophenol BSP SURR 66 % 30-130OP49038-BS 4165-62-2 Phenol-d5 BSP SURR 68 % 30-130OP49038-BS 118-79-6 2,4,6-Tribromophenol BSP SURR 83 % 30-130OP49038-BS 4165-60-0 Nitrobenzene-d5 BSP SURR 66 % 30-130OP49038-BS 321-60-8 2-Fluorobiphenyl BSP SURR 74 % 30-130OP49038-BS 1718-51-0 Terphenyl-d14 BSP SURR 78 % 30-130OP49038-MB 367-12-4 2-Fluorophenol MB SURR 67 % 30-130OP49038-MB 4165-62-2 Phenol-d5 MB SURR 68 % 30-130OP49038-MB 118-79-6 2,4,6-Tribromophenol MB SURR 80 % 30-130OP49038-MB 4165-60-0 Nitrobenzene-d5 MB SURR 65 % 30-130OP49038-MB 321-60-8 2-Fluorobiphenyl MB SURR 73 % 30-130OP49038-MB 1718-51-0 Terphenyl-d14 MB SURR 91 % 30-130MC48470-1 367-12-4 2-Fluorophenol SAMP SURR 85 % 30-130MC48470-1 4165-62-2 Phenol-d5 SAMP SURR 89 % 30-130MC48470-1 118-79-6 2,4,6-Tribromophenol SAMP SURR 108 % 30-130MC48470-1 4165-60-0 Nitrobenzene-d5 SAMP SURR 85 % 30-130MC48470-1 321-60-8 2-Fluorobiphenyl SAMP SURR 96 % 30-130MC48470-1 1718-51-0 Terphenyl-d14 SAMP SURR 109 % 30-130MC48470-2 367-12-4 2-Fluorophenol SAMP SURR 81 % 30-130MC48470-2 4165-62-2 Phenol-d5 SAMP SURR 83 % 30-130MC48470-2 118-79-6 2,4,6-Tribromophenol SAMP SURR 105 % 30-130MC48470-2 4165-60-0 Nitrobenzene-d5 SAMP SURR 79 % 30-130MC48470-2 321-60-8 2-Fluorobiphenyl SAMP SURR 88 % 30-130MC48470-2 1718-51-0 Terphenyl-d14 SAMP SURR 109 % 30-130MC48470-3 367-12-4 2-Fluorophenol SAMP SURR 86 % 30-130MC48470-3 4165-62-2 Phenol-d5 SAMP SURR 88 % 30-130MC48470-3 118-79-6 2,4,6-Tribromophenol SAMP SURR 104 % 30-130MC48470-3 4165-60-0 Nitrobenzene-d5 SAMP SURR 85 % 30-130MC48470-3 321-60-8 2-Fluorobiphenyl SAMP SURR 93 % 30-130MC48470-3 1718-51-0 Terphenyl-d14 SAMP SURR 104 % 30-130MC48470-4 367-12-4 2-Fluorophenol SAMP SURR 73 % 30-130MC48470-4 4165-62-2 Phenol-d5 SAMP SURR 74 % 30-130MC48470-4 118-79-6 2,4,6-Tribromophenol SAMP SURR 87 % 30-130MC48470-4 4165-60-0 Nitrobenzene-d5 SAMP SURR 73 % 30-130MC48470-4 321-60-8 2-Fluorobiphenyl SAMP SURR 78 % 30-130MC48470-4 1718-51-0 Terphenyl-d14 SAMP SURR 88 % 30-130MC48470-5 367-12-4 2-Fluorophenol SAMP SURR 76 % 30-130MC48470-5 4165-62-2 Phenol-d5 SAMP SURR 81 % 30-130MC48470-5 118-79-6 2,4,6-Tribromophenol SAMP SURR 104 % 30-130MC48470-5 4165-60-0 Nitrobenzene-d5 SAMP SURR 78 % 30-130

* Sample used for QC is not from job MC48470

253 of 397

MC48470

55.4

Page 286: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 15 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MC48470-5 321-60-8 2-Fluorobiphenyl SAMP SURR 90 % 30-130MC48470-5 1718-51-0 Terphenyl-d14 SAMP SURR 105 % 30-130MC48470-6 367-12-4 2-Fluorophenol SAMP SURR 80 % 30-130MC48470-6 4165-62-2 Phenol-d5 SAMP SURR 81 % 30-130MC48470-6 118-79-6 2,4,6-Tribromophenol SAMP SURR 103 % 30-130MC48470-6 4165-60-0 Nitrobenzene-d5 SAMP SURR 78 % 30-130MC48470-6 321-60-8 2-Fluorobiphenyl SAMP SURR 87 % 30-130MC48470-6 1718-51-0 Terphenyl-d14 SAMP SURR 103 % 30-130MC48470-7 367-12-4 2-Fluorophenol SAMP SURR 67 % 30-130MC48470-7 4165-62-2 Phenol-d5 SAMP SURR 71 % 30-130MC48470-7 118-79-6 2,4,6-Tribromophenol SAMP SURR 94 % 30-130MC48470-7 4165-60-0 Nitrobenzene-d5 SAMP SURR 64 % 30-130MC48470-7 321-60-8 2-Fluorobiphenyl SAMP SURR 76 % 30-130MC48470-7 1718-51-0 Terphenyl-d14 SAMP SURR 95 % 30-130MC48470-8 367-12-4 2-Fluorophenol SAMP SURR 81 % 30-130MC48470-8 4165-62-2 Phenol-d5 SAMP SURR 84 % 30-130MC48470-8 118-79-6 2,4,6-Tribromophenol SAMP SURR 106 % 30-130MC48470-8 4165-60-0 Nitrobenzene-d5 SAMP SURR 80 % 30-130MC48470-8 321-60-8 2-Fluorobiphenyl SAMP SURR 91 % 30-130MC48470-8 1718-51-0 Terphenyl-d14 SAMP SURR 107 % 30-130MC48470-9 367-12-4 2-Fluorophenol SAMP SURR 64 % 30-130MC48470-9 4165-62-2 Phenol-d5 SAMP SURR 68 % 30-130MC48470-9 118-79-6 2,4,6-Tribromophenol SAMP SURR 95 % 30-130MC48470-9 4165-60-0 Nitrobenzene-d5 SAMP SURR 65 % 30-130MC48470-9 321-60-8 2-Fluorobiphenyl SAMP SURR 76 % 30-130MC48470-9 1718-51-0 Terphenyl-d14 SAMP SURR 103 % 30-130MC48470-10 367-12-4 2-Fluorophenol SAMP SURR 77 % 30-130MC48470-10 4165-62-2 Phenol-d5 SAMP SURR 82 % 30-130MC48470-10 118-79-6 2,4,6-Tribromophenol SAMP SURR 104 % 30-130MC48470-10 4165-60-0 Nitrobenzene-d5 SAMP SURR 76 % 30-130MC48470-10 321-60-8 2-Fluorobiphenyl SAMP SURR 86 % 30-130MC48470-10 1718-51-0 Terphenyl-d14 SAMP SURR 101 % 30-130MC48470-11 367-12-4 2-Fluorophenol SAMP SURR 71 % 30-130MC48470-11 4165-62-2 Phenol-d5 SAMP SURR 77 % 30-130MC48470-11 118-79-6 2,4,6-Tribromophenol SAMP SURR 103 % 30-130MC48470-11 4165-60-0 Nitrobenzene-d5 SAMP SURR 71 % 30-130MC48470-11 321-60-8 2-Fluorobiphenyl SAMP SURR 84 % 30-130MC48470-11 1718-51-0 Terphenyl-d14 SAMP SURR 102 % 30-130MC48470-12 367-12-4 2-Fluorophenol SAMP SURR 85 % 30-130MC48470-12 4165-62-2 Phenol-d5 SAMP SURR 89 % 30-130MC48470-12 118-79-6 2,4,6-Tribromophenol SAMP SURR 110 % 30-130MC48470-12 4165-60-0 Nitrobenzene-d5 SAMP SURR 84 % 30-130MC48470-12 321-60-8 2-Fluorobiphenyl SAMP SURR 94 % 30-130MC48470-12 1718-51-0 Terphenyl-d14 SAMP SURR 111 % 30-130MC48470-13 367-12-4 2-Fluorophenol SAMP SURR 79 % 30-130

* Sample used for QC is not from job MC48470

254 of 397

MC48470

55.4

Page 287: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 16 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MC48470-13 367-12-4 2-Fluorophenol SAMP SURR 81 % 30-130MC48470-13 4165-62-2 Phenol-d5 SAMP SURR 88 % 30-130MC48470-13 4165-62-2 Phenol-d5 SAMP SURR 81 % 30-130MC48470-13 118-79-6 2,4,6-Tribromophenol SAMP SURR 94 % 30-130MC48470-13 118-79-6 2,4,6-Tribromophenol SAMP SURR 102 % 30-130MC48470-13 4165-60-0 Nitrobenzene-d5 SAMP SURR 84 % 30-130MC48470-13 4165-60-0 Nitrobenzene-d5 SAMP SURR 80 % 30-130MC48470-13 321-60-8 2-Fluorobiphenyl SAMP SURR 89 % 30-130MC48470-13 321-60-8 2-Fluorobiphenyl SAMP SURR 94 % 30-130MC48470-13 1718-51-0 Terphenyl-d14 SAMP SURR 101 % 30-130MC48470-13 1718-51-0 Terphenyl-d14 SAMP SURR 102 % 30-130

OP49052 SW846 8270D

OP49052-BS 95-57-8 2-Chlorophenol BSP REC 67 % 30-130OP49052-BS 59-50-7 4-Chloro-3-methyl phenol BSP REC 69 % 30-130OP49052-BS 120-83-2 2,4-Dichlorophenol BSP REC 69 % 30-130OP49052-BS 105-67-9 2,4-Dimethylphenol BSP REC 62 % 30-130OP49052-BS 51-28-5 2,4-Dinitrophenol BSP REC 49 % 30-130OP49052-BS 534-52-1 4,6-Dinitro-o-cresol BSP REC 58 % 30-130OP49052-BS 95-48-7 2-Methylphenol BSP REC 60 % 30-130OP49052-BS 106-44-5 4-Methylphenol BSP REC 56 % 30-130OP49052-BS 88-75-5 2-Nitrophenol BSP REC 67 % 30-130OP49052-BS 100-02-7 4-Nitrophenol BSP REC 35 % 30-130OP49052-BS 87-86-5 Pentachlorophenol BSP REC 66 % 30-130OP49052-BS 108-95-2 Phenol BSP REC 33 % 30-130OP49052-BS 95-95-4 2,4,5-Trichlorophenol BSP REC 76 % 30-130OP49052-BS 88-06-2 2,4,6-Trichlorophenol BSP REC 75 % 30-130OP49052-BS 62-53-3 Aniline BSP REC 54 % 40-140OP49052-BS 101-55-3 4-Bromophenyl phenyl ether BSP REC 81 % 40-140OP49052-BS 85-68-7 Butyl benzyl phthalate BSP REC 86 % 40-140OP49052-BS 91-58-7 2-Chloronaphthalene BSP REC 69 % 40-140OP49052-BS 106-47-8 4-Chloroaniline BSP REC 72 % 40-140OP49052-BS 86-74-8 Carbazole BSP REC 72 % 40-140OP49052-BS 111-91-1 bis(2-Chloroethoxy)methane BSP REC 64 % 40-140OP49052-BS 111-44-4 bis(2-Chloroethyl)ether BSP REC 68 % 40-140OP49052-BS 108-60-1 bis(2-Chloroisopropyl)ether BSP REC 68 % 40-140OP49052-BS 7005-72-3 4-Chlorophenyl phenyl ether BSP REC 77 % 40-140OP49052-BS 121-14-2 2,4-Dinitrotoluene BSP REC 76 % 40-140OP49052-BS 606-20-2 2,6-Dinitrotoluene BSP REC 73 % 40-140OP49052-BS 91-94-1 3,3'-Dichlorobenzidine BSP REC 78 % 40-140OP49052-BS 132-64-9 Dibenzofuran BSP REC 67 % 40-140OP49052-BS 84-74-2 Di-n-butyl phthalate BSP REC 80 % 40-140OP49052-BS 117-84-0 Di-n-octyl phthalate BSP REC 80 % 40-140OP49052-BS 84-66-2 Diethyl phthalate BSP REC 79 % 40-140

* Sample used for QC is not from job MC48470

255 of 397

MC48470

55.4

Page 288: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 17 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

OP49052-BS 131-11-3 Dimethyl phthalate BSP REC 79 % 40-140OP49052-BS 117-81-7 bis(2-Ethylhexyl)phthalate BSP REC 80 % 40-140OP49052-BS 118-74-1 Hexachlorobenzene BSP REC 74 % 40-140OP49052-BS 87-68-3 Hexachlorobutadiene BSP REC 58 % 40-140OP49052-BS 77-47-4 Hexachlorocyclopentadiene BSP REC 29 % 40-140OP49052-BS 67-72-1 Hexachloroethane BSP REC 52 % 40-140OP49052-BS 78-59-1 Isophorone BSP REC 67 % 40-140OP49052-BS 91-57-6 2-Methylnaphthalene BSP REC 63 % 40-140OP49052-BS 88-74-4 2-Nitroaniline BSP REC 73 % 40-140OP49052-BS 99-09-2 3-Nitroaniline BSP REC 76 % 40-140OP49052-BS 100-01-6 4-Nitroaniline BSP REC 71 % 40-140OP49052-BS 98-95-3 Nitrobenzene BSP REC 64 % 40-140OP49052-BS 621-64-7 N-Nitroso-di-n-propylamine BSP REC 70 % 40-140OP49052-BS 86-30-6 N-Nitrosodiphenylamine BSP REC 69 % 40-140OP49052-BS 82-68-8 Pentachloronitrobenzene BSP REC 70 % 40-140OP49052-BS 110-86-1 Pyridine BSP REC 20 % 40-140OP49052-BS 95-94-3 1,2,4,5-Tetrachlorobenzene BSP REC 64 % 40-140OP49052-BS 120-82-1 1,2,4-Trichlorobenzene BSP REC 66 % 40-140OP49052-BS 367-12-4 2-Fluorophenol BSP SURR 44 % 15-110OP49052-BS 4165-62-2 Phenol-d5 BSP SURR 30 % 15-110OP49052-BS 118-79-6 2,4,6-Tribromophenol BSP SURR 80 % 15-110OP49052-BS 4165-60-0 Nitrobenzene-d5 BSP SURR 66 % 30-130OP49052-BS 321-60-8 2-Fluorobiphenyl BSP SURR 65 % 30-130OP49052-BS 1718-51-0 Terphenyl-d14 BSP SURR 80 % 30-130OP49052-BSD 95-57-8 2-Chlorophenol BSD REC 68 % 30-130OP49052-BSD 95-57-8 2-Chlorophenol BSD RPD 1 % 20OP49052-BSD 59-50-7 4-Chloro-3-methyl phenol BSD REC 72 % 30-130OP49052-BSD 59-50-7 4-Chloro-3-methyl phenol BSD RPD 4 % 20OP49052-BSD 120-83-2 2,4-Dichlorophenol BSD REC 70 % 30-130OP49052-BSD 120-83-2 2,4-Dichlorophenol BSD RPD 1 % 20OP49052-BSD 105-67-9 2,4-Dimethylphenol BSD REC 62 % 30-130OP49052-BSD 105-67-9 2,4-Dimethylphenol BSD RPD 1 % 20OP49052-BSD 51-28-5 2,4-Dinitrophenol BSD REC 58 % 30-130OP49052-BSD 51-28-5 2,4-Dinitrophenol BSD RPD 15 % 20OP49052-BSD 534-52-1 4,6-Dinitro-o-cresol BSD REC 64 % 30-130OP49052-BSD 534-52-1 4,6-Dinitro-o-cresol BSD RPD 11 % 20OP49052-BSD 95-48-7 2-Methylphenol BSD REC 64 % 30-130OP49052-BSD 95-48-7 2-Methylphenol BSD RPD 7 % 20OP49052-BSD 106-44-5 4-Methylphenol BSD REC 59 % 30-130OP49052-BSD 106-44-5 4-Methylphenol BSD RPD 6 % 20OP49052-BSD 88-75-5 2-Nitrophenol BSD REC 69 % 30-130OP49052-BSD 88-75-5 2-Nitrophenol BSD RPD 3 % 20OP49052-BSD 100-02-7 4-Nitrophenol BSD REC 39 % 30-130OP49052-BSD 100-02-7 4-Nitrophenol BSD RPD 10 % 20OP49052-BSD 87-86-5 Pentachlorophenol BSD REC 68 % 30-130

* Sample used for QC is not from job MC48470

256 of 397

MC48470

55.4

Page 289: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 18 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

OP49052-BSD 87-86-5 Pentachlorophenol BSD RPD 4 % 20OP49052-BSD 108-95-2 Phenol BSD REC 35 % 30-130OP49052-BSD 108-95-2 Phenol BSD RPD 7 % 20OP49052-BSD 95-95-4 2,4,5-Trichlorophenol BSD REC 79 % 30-130OP49052-BSD 95-95-4 2,4,5-Trichlorophenol BSD RPD 5 % 20OP49052-BSD 88-06-2 2,4,6-Trichlorophenol BSD REC 78 % 30-130OP49052-BSD 88-06-2 2,4,6-Trichlorophenol BSD RPD 4 % 20OP49052-BSD 62-53-3 Aniline BSD REC 56 % 40-140OP49052-BSD 62-53-3 Aniline BSD RPD 4 % 20OP49052-BSD 101-55-3 4-Bromophenyl phenyl ether BSD REC 84 % 40-140OP49052-BSD 101-55-3 4-Bromophenyl phenyl ether BSD RPD 4 % 20OP49052-BSD 85-68-7 Butyl benzyl phthalate BSD REC 91 % 40-140OP49052-BSD 85-68-7 Butyl benzyl phthalate BSD RPD 7 % 20OP49052-BSD 91-58-7 2-Chloronaphthalene BSD REC 72 % 40-140OP49052-BSD 91-58-7 2-Chloronaphthalene BSD RPD 4 % 20OP49052-BSD 106-47-8 4-Chloroaniline BSD REC 73 % 40-140OP49052-BSD 106-47-8 4-Chloroaniline BSD RPD 2 % 20OP49052-BSD 86-74-8 Carbazole BSD REC 76 % 40-140OP49052-BSD 86-74-8 Carbazole BSD RPD 6 % 20OP49052-BSD 111-91-1 bis(2-Chloroethoxy)methane BSD REC 66 % 40-140OP49052-BSD 111-91-1 bis(2-Chloroethoxy)methane BSD RPD 4 % 20OP49052-BSD 111-44-4 bis(2-Chloroethyl)ether BSD REC 72 % 40-140OP49052-BSD 111-44-4 bis(2-Chloroethyl)ether BSD RPD 5 % 20OP49052-BSD 108-60-1 bis(2-Chloroisopropyl)ether BSD REC 71 % 40-140OP49052-BSD 108-60-1 bis(2-Chloroisopropyl)ether BSD RPD 5 % 20OP49052-BSD 7005-72-3 4-Chlorophenyl phenyl ether BSD REC 82 % 40-140OP49052-BSD 7005-72-3 4-Chlorophenyl phenyl ether BSD RPD 7 % 20OP49052-BSD 121-14-2 2,4-Dinitrotoluene BSD REC 84 % 40-140OP49052-BSD 121-14-2 2,4-Dinitrotoluene BSD RPD 10 % 20OP49052-BSD 606-20-2 2,6-Dinitrotoluene BSD REC 77 % 40-140OP49052-BSD 606-20-2 2,6-Dinitrotoluene BSD RPD 6 % 20OP49052-BSD 91-94-1 3,3'-Dichlorobenzidine BSD REC 82 % 40-140OP49052-BSD 91-94-1 3,3'-Dichlorobenzidine BSD RPD 4 % 20OP49052-BSD 132-64-9 Dibenzofuran BSD REC 71 % 40-140OP49052-BSD 132-64-9 Dibenzofuran BSD RPD 6 % 20OP49052-BSD 84-74-2 Di-n-butyl phthalate BSD REC 85 % 40-140OP49052-BSD 84-74-2 Di-n-butyl phthalate BSD RPD 6 % 20OP49052-BSD 117-84-0 Di-n-octyl phthalate BSD REC 84 % 40-140OP49052-BSD 117-84-0 Di-n-octyl phthalate BSD RPD 4 % 20OP49052-BSD 84-66-2 Diethyl phthalate BSD REC 85 % 40-140OP49052-BSD 84-66-2 Diethyl phthalate BSD RPD 8 % 20OP49052-BSD 131-11-3 Dimethyl phthalate BSD REC 84 % 40-140OP49052-BSD 131-11-3 Dimethyl phthalate BSD RPD 7 % 20OP49052-BSD 117-81-7 bis(2-Ethylhexyl)phthalate BSD REC 84 % 40-140OP49052-BSD 117-81-7 bis(2-Ethylhexyl)phthalate BSD RPD 5 % 20

* Sample used for QC is not from job MC48470

257 of 397

MC48470

55.4

Page 290: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 19 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

OP49052-BSD 118-74-1 Hexachlorobenzene BSD REC 77 % 40-140OP49052-BSD 118-74-1 Hexachlorobenzene BSD RPD 4 % 20OP49052-BSD 87-68-3 Hexachlorobutadiene BSD REC 56 % 40-140OP49052-BSD 87-68-3 Hexachlorobutadiene BSD RPD 2 % 20OP49052-BSD 77-47-4 Hexachlorocyclopentadiene BSD REC 32 % 40-140OP49052-BSD 77-47-4 Hexachlorocyclopentadiene BSD RPD 8 % 20OP49052-BSD 67-72-1 Hexachloroethane BSD REC 50 % 40-140OP49052-BSD 67-72-1 Hexachloroethane BSD RPD 4 % 20OP49052-BSD 78-59-1 Isophorone BSD REC 69 % 40-140OP49052-BSD 78-59-1 Isophorone BSD RPD 4 % 20OP49052-BSD 91-57-6 2-Methylnaphthalene BSD REC 66 % 40-140OP49052-BSD 91-57-6 2-Methylnaphthalene BSD RPD 3 % 20OP49052-BSD 88-74-4 2-Nitroaniline BSD REC 77 % 40-140OP49052-BSD 88-74-4 2-Nitroaniline BSD RPD 6 % 20OP49052-BSD 99-09-2 3-Nitroaniline BSD REC 82 % 40-140OP49052-BSD 99-09-2 3-Nitroaniline BSD RPD 8 % 20OP49052-BSD 100-01-6 4-Nitroaniline BSD REC 79 % 40-140OP49052-BSD 100-01-6 4-Nitroaniline BSD RPD 11 % 20OP49052-BSD 98-95-3 Nitrobenzene BSD REC 65 % 40-140OP49052-BSD 98-95-3 Nitrobenzene BSD RPD 2 % 20OP49052-BSD 621-64-7 N-Nitroso-di-n-propylamine BSD REC 73 % 40-140OP49052-BSD 621-64-7 N-Nitroso-di-n-propylamine BSD RPD 4 % 20OP49052-BSD 86-30-6 N-Nitrosodiphenylamine BSD REC 73 % 40-140OP49052-BSD 86-30-6 N-Nitrosodiphenylamine BSD RPD 5 % 20OP49052-BSD 82-68-8 Pentachloronitrobenzene BSD REC 75 % 40-140OP49052-BSD 82-68-8 Pentachloronitrobenzene BSD RPD 7 % 20OP49052-BSD 110-86-1 Pyridine BSD REC 19 % 40-140OP49052-BSD 110-86-1 Pyridine BSD RPD 1 % 20OP49052-BSD 95-94-3 1,2,4,5-Tetrachlorobenzene BSD REC 67 % 40-140OP49052-BSD 95-94-3 1,2,4,5-Tetrachlorobenzene BSD RPD 4 % 20OP49052-BSD 120-82-1 1,2,4-Trichlorobenzene BSD REC 65 % 40-140OP49052-BSD 120-82-1 1,2,4-Trichlorobenzene BSD RPD 1 % 20OP49052-BSD 367-12-4 2-Fluorophenol BSD SURR 48 % 15-110OP49052-BSD 4165-62-2 Phenol-d5 BSD SURR 32 % 15-110OP49052-BSD 118-79-6 2,4,6-Tribromophenol BSD SURR 82 % 15-110OP49052-BSD 4165-60-0 Nitrobenzene-d5 BSD SURR 67 % 30-130OP49052-BSD 321-60-8 2-Fluorobiphenyl BSD SURR 63 % 30-130OP49052-BSD 1718-51-0 Terphenyl-d14 BSD SURR 81 % 30-130OP49052-MB 367-12-4 2-Fluorophenol MB SURR 37 % 15-110OP49052-MB 4165-62-2 Phenol-d5 MB SURR 24 % 15-110OP49052-MB 118-79-6 2,4,6-Tribromophenol MB SURR 65 % 15-110OP49052-MB 4165-60-0 Nitrobenzene-d5 MB SURR 53 % 30-130OP49052-MB 321-60-8 2-Fluorobiphenyl MB SURR 52 % 30-130OP49052-MB 1718-51-0 Terphenyl-d14 MB SURR 79 % 30-130MC48470-15 367-12-4 2-Fluorophenol SAMP SURR 38 % 15-110

* Sample used for QC is not from job MC48470

258 of 397

MC48470

55.4

Page 291: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 20 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MC48470-15 4165-62-2 Phenol-d5 SAMP SURR 23 % 15-110MC48470-15 118-79-6 2,4,6-Tribromophenol SAMP SURR 74 % 15-110MC48470-15 4165-60-0 Nitrobenzene-d5 SAMP SURR 58 % 30-130MC48470-15 321-60-8 2-Fluorobiphenyl SAMP SURR 57 % 30-130MC48470-15 1718-51-0 Terphenyl-d14 SAMP SURR 76 % 30-130MC48470-16 367-12-4 2-Fluorophenol SAMP SURR 42 % 15-110MC48470-16 4165-62-2 Phenol-d5 SAMP SURR 26 % 15-110MC48470-16 118-79-6 2,4,6-Tribromophenol SAMP SURR 82 % 15-110MC48470-16 4165-60-0 Nitrobenzene-d5 SAMP SURR 61 % 30-130MC48470-16 321-60-8 2-Fluorobiphenyl SAMP SURR 59 % 30-130MC48470-16 1718-51-0 Terphenyl-d14 SAMP SURR 84 % 30-130MC48470-17 367-12-4 2-Fluorophenol SAMP SURR 40 % 15-110MC48470-17 4165-62-2 Phenol-d5 SAMP SURR 25 % 15-110MC48470-17 118-79-6 2,4,6-Tribromophenol SAMP SURR 78 % 15-110MC48470-17 4165-60-0 Nitrobenzene-d5 SAMP SURR 60 % 30-130MC48470-17 321-60-8 2-Fluorobiphenyl SAMP SURR 58 % 30-130MC48470-17 1718-51-0 Terphenyl-d14 SAMP SURR 83 % 30-130MC48470-19 367-12-4 2-Fluorophenol SAMP SURR 44 % 15-110MC48470-19 4165-62-2 Phenol-d5 SAMP SURR 27 % 15-110MC48470-19 118-79-6 2,4,6-Tribromophenol SAMP SURR 80 % 15-110MC48470-19 4165-60-0 Nitrobenzene-d5 SAMP SURR 63 % 30-130MC48470-19 321-60-8 2-Fluorobiphenyl SAMP SURR 63 % 30-130MC48470-19 1718-51-0 Terphenyl-d14 SAMP SURR 88 % 30-130

OP49033 SW846 8082A

OP49033-BS 12674-11-2 Aroclor 1016 BSP REC 89 % 40-140OP49033-BS 11096-82-5 Aroclor 1260 BSP REC 86 % 40-140OP49033-BS 877-09-8 Tetrachloro-m-xylene (sig#1) BSP SURR 85 % 30-150OP49033-BS 877-09-8 Tetrachloro-m-xylene (sig#2) BSP SURR 86 % 30-150OP49033-BS 2051-24-3 Decachlorobiphenyl (sig#1) BSP SURR 95 % 30-150OP49033-BS 2051-24-3 Decachlorobiphenyl (sig#2) BSP SURR 99 % 30-150OP49033-MB 877-09-8 Tetrachloro-m-xylene (sig#1) MB SURR 72 % 30-150OP49033-MB 877-09-8 Tetrachloro-m-xylene (sig#2) MB SURR 75 % 30-150OP49033-MB 2051-24-3 Decachlorobiphenyl (sig#1) MB SURR 70 % 30-150OP49033-MB 2051-24-3 Decachlorobiphenyl (sig#2) MB SURR 72 % 30-150MC48470-1 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 76 % 30-150MC48470-1 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 71 % 30-150MC48470-1 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 130 % 30-150MC48470-1 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 113 % 30-150MC48470-2 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 81 % 30-150MC48470-2 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 80 % 30-150MC48470-2 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 99 % 30-150MC48470-2 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 97 % 30-150MC48470-3 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 82 % 30-150

* Sample used for QC is not from job MC48470

259 of 397

MC48470

55.4

Page 292: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 21 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MC48470-3 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 80 % 30-150MC48470-3 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 109 % 30-150MC48470-3 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 107 % 30-150MC48470-4 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 81 % 30-150MC48470-4 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 80 % 30-150MC48470-4 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 110 % 30-150MC48470-4 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 109 % 30-150MC48470-5 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 76 % 30-150MC48470-5 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 71 % 30-150MC48470-5 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 123 % 30-150MC48470-5 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 120 % 30-150MC48470-6 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 81 % 30-150MC48470-6 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 80 % 30-150MC48470-6 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 108 % 30-150MC48470-6 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 108 % 30-150MC48470-7 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 82 % 30-150MC48470-7 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 82 % 30-150MC48470-7 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 109 % 30-150MC48470-7 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 109 % 30-150MC48470-8 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 81 % 30-150MC48470-8 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 81 % 30-150MC48470-8 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 118 % 30-150MC48470-8 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 120 % 30-150MC48470-9 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 80 % 30-150MC48470-9 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 79 % 30-150MC48470-9 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 109 % 30-150MC48470-9 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 109 % 30-150MC48470-10 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 77 % 30-150MC48470-10 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 76 % 30-150MC48470-10 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 102 % 30-150MC48470-10 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 103 % 30-150MC48470-11 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 85 % 30-150MC48470-11 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 85 % 30-150MC48470-11 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 119 % 30-150MC48470-11 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 119 % 30-150MC48470-12 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 84 % 30-150MC48470-12 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 82 % 30-150MC48470-12 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 113 % 30-150MC48470-12 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 113 % 30-150MC48470-13 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 67 % 30-150MC48470-13 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 62 % 30-150MC48470-13 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 118 % 30-150MC48470-13 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 110 % 30-150

* Sample used for QC is not from job MC48470

260 of 397

MC48470

55.4

Page 293: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 22 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

OP49036 SW846 8081B

OP49036-BS 15972-60-8 Alachlor BSP REC 95 % 40-140OP49036-BS 309-00-2 Aldrin BSP REC 82 % 40-140OP49036-BS 319-84-6 alpha-BHC BSP REC 76 % 40-140OP49036-BS 319-85-7 beta-BHC BSP REC 83 % 40-140OP49036-BS 319-86-8 delta-BHC BSP REC 53 % 40-140OP49036-BS 58-89-9 gamma-BHC (Lindane) BSP REC 78 % 40-140OP49036-BS 60-57-1 Dieldrin BSP REC 93 % 40-140OP49036-BS 72-54-8 4,4'-DDD BSP REC 92 % 40-140OP49036-BS 72-55-9 4,4'-DDE BSP REC 87 % 40-140OP49036-BS 50-29-3 4,4'-DDT BSP REC 56 % 40-140OP49036-BS 72-20-8 Endrin BSP REC 72 % 40-140OP49036-BS 1031-07-8 Endosulfan sulfate BSP REC 87 % 40-140OP49036-BS 7421-93-4 Endrin aldehyde BSP REC 90 % 40-140OP49036-BS 959-98-8 Endosulfan-I BSP REC 93 % 40-140OP49036-BS 33213-65-9 Endosulfan-II BSP REC 92 % 40-140OP49036-BS 76-44-8 Heptachlor BSP REC 74 % 40-140OP49036-BS 1024-57-3 Heptachlor epoxide BSP REC 90 % 40-140OP49036-BS 72-43-5 Methoxychlor BSP REC 55 % 40-140OP49036-BS 53494-70-5 Endrin ketone BSP REC 94 % 40-140OP49036-BS 877-09-8 Tetrachloro-m-xylene (sig#1) BSP SURR 76 % 30-150OP49036-BS 877-09-8 Tetrachloro-m-xylene (sig#2) BSP SURR 78 % 30-150OP49036-BS 2051-24-3 Decachlorobiphenyl (sig#1) BSP SURR 76 % 30-150OP49036-BS 2051-24-3 Decachlorobiphenyl (sig#2) BSP SURR 85 % 30-150OP49036-MB 877-09-8 Tetrachloro-m-xylene (sig#1) MB SURR 71 % 30-150OP49036-MB 877-09-8 Tetrachloro-m-xylene (sig#2) MB SURR 74 % 30-150OP49036-MB 2051-24-3 Decachlorobiphenyl (sig#1) MB SURR 46 % 30-150OP49036-MB 2051-24-3 Decachlorobiphenyl (sig#2) MB SURR 77 % 30-150MC48470-1 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 57 % 30-150MC48470-1 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 61 % 30-150MC48470-1 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 68 % 30-150MC48470-1 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 127 % 30-150MC48470-2 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 77 % 30-150MC48470-2 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 75 % 30-150MC48470-2 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 72 % 30-150MC48470-2 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 74 % 30-150MC48470-3 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 72 % 30-150MC48470-3 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 71 % 30-150MC48470-3 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 55 % 30-150MC48470-3 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 74 % 30-150MC48470-4 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 70 % 30-150MC48470-4 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 68 % 30-150MC48470-4 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 62 % 30-150

* Sample used for QC is not from job MC48470

261 of 397

MC48470

55.4

Page 294: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 23 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

MC48470-4 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 66 % 30-150MC48470-5 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 65 % 30-150MC48470-5 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 70 % 30-150MC48470-5 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 58 % 30-150MC48470-5 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 109 % 30-150MC48470-6 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 89 % 30-150MC48470-6 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 88 % 30-150MC48470-6 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 70 % 30-150MC48470-6 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 89 % 30-150MC48470-7 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 60 % 30-150MC48470-7 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 58 % 30-150MC48470-7 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 55 % 30-150MC48470-7 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 60 % 30-150MC48470-8 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 76 % 30-150MC48470-8 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 74 % 30-150MC48470-8 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 72 % 30-150MC48470-8 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 77 % 30-150MC48470-9 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 76 % 30-150MC48470-9 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 74 % 30-150MC48470-9 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 69 % 30-150MC48470-9 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 74 % 30-150MC48470-10 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 65 % 30-150MC48470-10 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 70 % 30-150MC48470-10 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 35 % 30-150MC48470-10 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 56 % 30-150MC48470-11 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 70 % 30-150MC48470-11 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 73 % 30-150MC48470-11 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 36 % 30-150MC48470-11 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 57 % 30-150MC48470-12 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 69 % 30-150MC48470-12 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 75 % 30-150MC48470-12 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 40 % 30-150MC48470-12 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 65 % 30-150MC48470-13 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 47 % 30-150MC48470-13 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 52 % 30-150MC48470-13 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 78 % 30-150MC48470-13 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 120 % 30-150

OP49045 SW846 8081B

OP49045-BS 15972-60-8 Alachlor BSP REC 80 % 40-140OP49045-BS 309-00-2 Aldrin BSP REC 61 % 40-140OP49045-BS 319-84-6 alpha-BHC BSP REC 65 % 40-140OP49045-BS 319-85-7 beta-BHC BSP REC 81 % 40-140OP49045-BS 319-86-8 delta-BHC BSP REC 49 % 40-140

* Sample used for QC is not from job MC48470

262 of 397

MC48470

55.4

Page 295: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 24 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

OP49045-BS 58-89-9 gamma-BHC (Lindane) BSP REC 72 % 40-140OP49045-BS 60-57-1 Dieldrin BSP REC 78 % 40-140OP49045-BS 72-54-8 4,4'-DDD BSP REC 78 % 40-140OP49045-BS 72-55-9 4,4'-DDE BSP REC 66 % 40-140OP49045-BS 50-29-3 4,4'-DDT BSP REC 65 % 40-140OP49045-BS 72-20-8 Endrin BSP REC 71 % 40-140OP49045-BS 1031-07-8 Endosulfan sulfate BSP REC 75 % 40-140OP49045-BS 7421-93-4 Endrin aldehyde BSP REC 74 % 40-140OP49045-BS 53494-70-5 Endrin ketone BSP REC 85 % 40-140OP49045-BS 959-98-8 Endosulfan-I BSP REC 78 % 40-140OP49045-BS 33213-65-9 Endosulfan-II BSP REC 79 % 40-140OP49045-BS 76-44-8 Heptachlor BSP REC 64 % 40-140OP49045-BS 1024-57-3 Heptachlor epoxide BSP REC 77 % 40-140OP49045-BS 72-43-5 Methoxychlor BSP REC 71 % 40-140OP49045-BS 877-09-8 Tetrachloro-m-xylene (sig#1) BSP SURR 90 % 30-150OP49045-BS 877-09-8 Tetrachloro-m-xylene (sig#2) BSP SURR 90 % 30-150OP49045-BS 2051-24-3 Decachlorobiphenyl (sig#1) BSP SURR 40 % 30-150OP49045-BS 2051-24-3 Decachlorobiphenyl (sig#2) BSP SURR 85 % 30-150OP49045-MB 877-09-8 Tetrachloro-m-xylene (sig#1) MB SURR 60 % 30-150OP49045-MB 877-09-8 Tetrachloro-m-xylene (sig#2) MB SURR 65 % 30-150OP49045-MB 2051-24-3 Decachlorobiphenyl (sig#1) MB SURR 35 % 30-150OP49045-MB 2051-24-3 Decachlorobiphenyl (sig#2) MB SURR 60 % 30-150MC48470-15 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 53 % 30-150MC48470-15 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 59 % 30-150MC48470-15 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 42 % 30-150MC48470-15 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 72 % 30-150MC48470-16 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 57 % 30-150MC48470-16 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 72 % 30-150MC48470-16 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 21 % 30-150MC48470-16 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 38 % 30-150MC48470-17 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 65 % 30-150MC48470-17 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 70 % 30-150MC48470-17 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 20 % 30-150MC48470-17 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 42 % 30-150MC48470-19 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 85 % 30-150MC48470-19 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 78 % 30-150MC48470-19 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 42 % 30-150MC48470-19 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 54 % 30-150

OP49046 SW846 8082A

OP49046-BS 12674-11-2 Aroclor 1016 BSP REC 90 % 40-140OP49046-BS 11096-82-5 Aroclor 1260 BSP REC 100 % 40-140OP49046-BS 877-09-8 Tetrachloro-m-xylene (sig#1) BSP SURR 71 % 30-150OP49046-BS 877-09-8 Tetrachloro-m-xylene (sig#2) BSP SURR 71 % 30-150

* Sample used for QC is not from job MC48470

263 of 397

MC48470

55.4

Page 296: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

QC Evaluation: CT RCP Limits Page 25 of 25 Job Number: MC48470Account: BL CompaniesProject: Bridge 00488, Route 66, Windham, CTCollected: 10/25/16

QC Sample ID CAS# Analyte Sample Result Result Units LimitsType Type

OP49046-BS 2051-24-3 Decachlorobiphenyl (sig#1) BSP SURR 60 % 30-150OP49046-BS 2051-24-3 Decachlorobiphenyl (sig#2) BSP SURR 61 % 30-150OP49046-BSD 12674-11-2 Aroclor 1016 BSD REC 90 % 40-140OP49046-BSD 12674-11-2 Aroclor 1016 BSD RPD 0 % 20OP49046-BSD 11104-28-2 Aroclor 1221 BSD RPD 0 % 20OP49046-BSD 11141-16-5 Aroclor 1232 BSD RPD 0 % 20OP49046-BSD 53469-21-9 Aroclor 1242 BSD RPD 0 % 20OP49046-BSD 12672-29-6 Aroclor 1248 BSD RPD 0 % 20OP49046-BSD 11097-69-1 Aroclor 1254 BSD RPD 0 % 20OP49046-BSD 11096-82-5 Aroclor 1260 BSD REC 110 % 40-140OP49046-BSD 11096-82-5 Aroclor 1260 BSD RPD 10 % 20OP49046-BSD 37324-23-5 Aroclor 1262 BSD RPD 0 % 20OP49046-BSD 11100-14-4 Aroclor 1268 BSD RPD 0 % 20OP49046-BSD 877-09-8 Tetrachloro-m-xylene (sig#1) BSD SURR 53 % 30-150OP49046-BSD 877-09-8 Tetrachloro-m-xylene (sig#2) BSD SURR 52 % 30-150OP49046-BSD 2051-24-3 Decachlorobiphenyl (sig#1) BSD SURR 76 % 30-150OP49046-BSD 2051-24-3 Decachlorobiphenyl (sig#2) BSD SURR 81 % 30-150OP49046-MB 877-09-8 Tetrachloro-m-xylene (sig#1) MB SURR 74 % 30-150OP49046-MB 877-09-8 Tetrachloro-m-xylene (sig#2) MB SURR 75 % 30-150OP49046-MB 2051-24-3 Decachlorobiphenyl (sig#1) MB SURR 72 % 30-150OP49046-MB 2051-24-3 Decachlorobiphenyl (sig#2) MB SURR 74 % 30-150MC48470-15 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 58 % 30-150MC48470-15 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 59 % 30-150MC48470-15 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 53 % 30-150MC48470-15 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 55 % 30-150MC48470-16 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 50 % 30-150MC48470-16 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 53 % 30-150MC48470-16 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 63 % 30-150MC48470-16 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 66 % 30-150MC48470-17 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 62 % 30-150MC48470-17 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 63 % 30-150MC48470-17 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 51 % 30-150MC48470-17 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 53 % 30-150MC48470-19 877-09-8 Tetrachloro-m-xylene (sig#1) SAMP SURR 84 % 30-150MC48470-19 877-09-8 Tetrachloro-m-xylene (sig#2) SAMP SURR 87 % 30-150MC48470-19 2051-24-3 Decachlorobiphenyl (sig#1) SAMP SURR 85 % 30-150MC48470-19 2051-24-3 Decachlorobiphenyl (sig#2) SAMP SURR 89 % 30-150

(a) Outside control limits. Associated samples may be high biased for this compound.(b) Outside control limits. Associated samples are non-detect for this compound.(c) Outside control limits. Associated target analytes are non-detect.(d) Outside control limits due to possible matrix interference. Confirmed by reanalysis.

* Sample used for QC is not from job MC48470

264 of 397

MC48470

55.4

Page 297: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

GC/MS Volatiles

QC Data Summaries

Includes the following where applicable:

• Method Blank Summaries• Blank Spike Summaries• Matrix Spike and Duplicate Summaries• Internal Standard Area Summaries• Surrogate Recovery Summaries

New EnglandSection 6

265 of 397

MC48470

6

Page 298: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2925-MB M81580.D 1 10/31/16 KP n/a n/a MSM2925

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-2, MC48470-3

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/kg107-13-1 Acrylonitrile ND 25 ug/kg71-43-2 Benzene ND 1.0 ug/kg108-86-1 Bromobenzene ND 5.0 ug/kg75-27-4 Bromodichloromethane ND 2.0 ug/kg75-25-2 Bromoform ND 2.0 ug/kg74-83-9 Bromomethane ND 10 ug/kg78-93-3 2-Butanone (MEK) ND 10 ug/kg104-51-8 n-Butylbenzene ND 5.0 ug/kg135-98-8 sec-Butylbenzene ND 5.0 ug/kg98-06-6 tert-Butylbenzene ND 5.0 ug/kg75-15-0 Carbon disulfide ND 5.0 ug/kg56-23-5 Carbon tetrachloride ND 2.0 ug/kg108-90-7 Chlorobenzene ND 2.0 ug/kg75-00-3 Chloroethane ND 10 ug/kg67-66-3 Chloroform ND 2.0 ug/kg74-87-3 Chloromethane ND 5.0 ug/kg95-49-8 o-Chlorotoluene ND 5.0 ug/kg106-43-4 p-Chlorotoluene ND 5.0 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 ug/kg124-48-1 Dibromochloromethane ND 5.0 ug/kg106-93-4 1,2-Dibromoethane ND 2.0 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.0 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.0 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.0 ug/kg75-71-8 Dichlorodifluoromethane ND 5.0 ug/kg75-34-3 1,1-Dichloroethane ND 2.0 ug/kg107-06-2 1,2-Dichloroethane ND 2.0 ug/kg75-35-4 1,1-Dichloroethene ND 2.0 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.0 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.0 ug/kg78-87-5 1,2-Dichloropropane ND 2.0 ug/kg142-28-9 1,3-Dichloropropane ND 5.0 ug/kg594-20-7 2,2-Dichloropropane ND 5.0 ug/kg563-58-6 1,1-Dichloropropene ND 5.0 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.0 ug/kg

266 of 397

MC48470

66.1.1

Page 299: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 2 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2925-MB M81580.D 1 10/31/16 KP n/a n/a MSM2925

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-2, MC48470-3

CAS No. Compound Result RL Units Q

10061-02-6 trans-1,3-Dichloropropene ND 2.0 ug/kg100-41-4 Ethylbenzene ND 2.0 ug/kg76-13-1 Freon 113 ND 5.0 ug/kg87-68-3 Hexachlorobutadiene ND 5.0 ug/kg591-78-6 2-Hexanone ND 5.0 ug/kg98-82-8 Isopropylbenzene ND 5.0 ug/kg99-87-6 p-Isopropyltoluene ND 5.0 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.0 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.0 ug/kg74-95-3 Methylene bromide ND 5.0 ug/kg75-09-2 Methylene chloride 0.70 2.0 ug/kg J91-20-3 Naphthalene ND 5.0 ug/kg103-65-1 n-Propylbenzene ND 5.0 ug/kg100-42-5 Styrene ND 5.0 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.0 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 5.0 ug/kg127-18-4 Tetrachloroethene ND 2.0 ug/kg109-99-9 Tetrahydrofuran ND 10 ug/kg108-88-3 Toluene ND 5.0 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 10 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 5.0 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 5.0 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.0 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.0 ug/kg79-01-6 Trichloroethene ND 2.0 ug/kg75-69-4 Trichlorofluoromethane ND 2.0 ug/kg96-18-4 1,2,3-Trichloropropane ND 5.0 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 5.0 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 5.0 ug/kg75-01-4 Vinyl chloride ND 10 ug/kg

m,p-Xylene ND 2.0 ug/kg95-47-6 o-Xylene ND 2.0 ug/kg

267 of 397

MC48470

66.1.1

Page 300: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 3 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2925-MB M81580.D 1 10/31/16 KP n/a n/a MSM2925

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-2, MC48470-3

CAS No. Surrogate Recoveries Limits

1868-53-7 Dibromofluoromethane 140% 65-141%2037-26-5 Toluene-D8 104% 65-129%460-00-4 4-Bromofluorobenzene 97% 63-137%

268 of 397

MC48470

66.1.1

Page 301: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSN3894-MB N105972.D 1 10/31/16 CB n/a n/a MSN3894

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-14, MC48470-15, MC48470-16, MC48470-17, MC48470-19

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/l107-13-1 Acrylonitrile ND 5.0 ug/l71-43-2 Benzene ND 0.50 ug/l108-86-1 Bromobenzene ND 5.0 ug/l75-27-4 Bromodichloromethane ND 1.0 ug/l75-25-2 Bromoform ND 1.0 ug/l74-83-9 Bromomethane ND 2.0 ug/l78-93-3 2-Butanone (MEK) ND 10 ug/l104-51-8 n-Butylbenzene ND 5.0 ug/l135-98-8 sec-Butylbenzene ND 5.0 ug/l98-06-6 tert-Butylbenzene ND 5.0 ug/l75-15-0 Carbon disulfide ND 5.0 ug/l56-23-5 Carbon tetrachloride ND 1.0 ug/l108-90-7 Chlorobenzene ND 1.0 ug/l75-00-3 Chloroethane ND 2.0 ug/l67-66-3 Chloroform ND 1.0 ug/l74-87-3 Chloromethane ND 2.0 ug/l95-49-8 o-Chlorotoluene ND 5.0 ug/l106-43-4 p-Chlorotoluene ND 5.0 ug/l96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 ug/l124-48-1 Dibromochloromethane ND 1.0 ug/l106-93-4 1,2-Dibromoethane ND 1.0 ug/l95-50-1 1,2-Dichlorobenzene ND 1.0 ug/l541-73-1 1,3-Dichlorobenzene ND 1.0 ug/l106-46-7 1,4-Dichlorobenzene ND 1.0 ug/l75-71-8 Dichlorodifluoromethane ND 2.0 ug/l75-34-3 1,1-Dichloroethane ND 1.0 ug/l107-06-2 1,2-Dichloroethane ND 1.0 ug/l75-35-4 1,1-Dichloroethene ND 1.0 ug/l156-59-2 cis-1,2-Dichloroethene 0.67 1.0 ug/l J156-60-5 trans-1,2-Dichloroethene ND 1.0 ug/l78-87-5 1,2-Dichloropropane ND 2.0 ug/l142-28-9 1,3-Dichloropropane ND 5.0 ug/l594-20-7 2,2-Dichloropropane ND 5.0 ug/l563-58-6 1,1-Dichloropropene ND 5.0 ug/l10061-01-5 cis-1,3-Dichloropropene ND 0.50 ug/l

269 of 397

MC48470

66.1.2

Page 302: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 2 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSN3894-MB N105972.D 1 10/31/16 CB n/a n/a MSN3894

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-14, MC48470-15, MC48470-16, MC48470-17, MC48470-19

CAS No. Compound Result RL Units Q

10061-02-6 trans-1,3-Dichloropropene ND 0.50 ug/l100-41-4 Ethylbenzene ND 1.0 ug/l76-13-1 Freon 113 ND 5.0 ug/l87-68-3 Hexachlorobutadiene ND 5.0 ug/l591-78-6 2-Hexanone ND 10 ug/l98-82-8 Isopropylbenzene ND 5.0 ug/l99-87-6 p-Isopropyltoluene ND 5.0 ug/l1634-04-4 Methyl Tert Butyl Ether ND 1.0 ug/l108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.0 ug/l74-95-3 Methylene bromide ND 5.0 ug/l75-09-2 Methylene chloride ND 2.0 ug/l91-20-3 Naphthalene 0.50 5.0 ug/l J103-65-1 n-Propylbenzene ND 5.0 ug/l100-42-5 Styrene ND 5.0 ug/l630-20-6 1,1,1,2-Tetrachloroethane ND 1.0 ug/l79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 ug/l127-18-4 Tetrachloroethene ND 1.0 ug/l109-99-9 Tetrahydrofuran ND 10 ug/l108-88-3 Toluene ND 1.0 ug/l110-57-6 Trans-1,4-Dichloro-2-Butene ND 5.0 ug/l87-61-6 1,2,3-Trichlorobenzene ND 5.0 ug/l120-82-1 1,2,4-Trichlorobenzene 0.54 5.0 ug/l J71-55-6 1,1,1-Trichloroethane ND 1.0 ug/l79-00-5 1,1,2-Trichloroethane ND 1.0 ug/l79-01-6 Trichloroethene ND 1.0 ug/l75-69-4 Trichlorofluoromethane ND 1.0 ug/l96-18-4 1,2,3-Trichloropropane ND 5.0 ug/l95-63-6 1,2,4-Trimethylbenzene ND 5.0 ug/l108-67-8 1,3,5-Trimethylbenzene ND 5.0 ug/l75-01-4 Vinyl chloride ND 1.0 ug/l

m,p-Xylene ND 1.0 ug/l95-47-6 o-Xylene ND 1.0 ug/l

270 of 397

MC48470

66.1.2

Page 303: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 3 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSN3894-MB N105972.D 1 10/31/16 CB n/a n/a MSN3894

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-14, MC48470-15, MC48470-16, MC48470-17, MC48470-19

CAS No. Surrogate Recoveries Limits

1868-53-7 Dibromofluoromethane 98% 76-129%2037-26-5 Toluene-D8 101% 83-114%460-00-4 4-Bromofluorobenzene 95% 75-124%

271 of 397

MC48470

66.1.2

Page 304: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2926-MB M81611.D 1 11/01/16 KP n/a n/a MSM2926

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-1, MC48470-6, MC48470-9, MC48470-10, MC48470-11, MC48470-13

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/kg107-13-1 Acrylonitrile ND 25 ug/kg71-43-2 Benzene ND 1.0 ug/kg108-86-1 Bromobenzene ND 5.0 ug/kg75-27-4 Bromodichloromethane ND 2.0 ug/kg75-25-2 Bromoform ND 2.0 ug/kg74-83-9 Bromomethane ND 10 ug/kg78-93-3 2-Butanone (MEK) ND 10 ug/kg104-51-8 n-Butylbenzene ND 5.0 ug/kg135-98-8 sec-Butylbenzene ND 5.0 ug/kg98-06-6 tert-Butylbenzene ND 5.0 ug/kg75-15-0 Carbon disulfide ND 5.0 ug/kg56-23-5 Carbon tetrachloride ND 2.0 ug/kg108-90-7 Chlorobenzene ND 2.0 ug/kg75-00-3 Chloroethane ND 10 ug/kg67-66-3 Chloroform ND 2.0 ug/kg74-87-3 Chloromethane ND 5.0 ug/kg95-49-8 o-Chlorotoluene ND 5.0 ug/kg106-43-4 p-Chlorotoluene ND 5.0 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 ug/kg124-48-1 Dibromochloromethane ND 5.0 ug/kg106-93-4 1,2-Dibromoethane ND 2.0 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.0 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.0 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.0 ug/kg75-71-8 Dichlorodifluoromethane ND 5.0 ug/kg75-34-3 1,1-Dichloroethane ND 2.0 ug/kg107-06-2 1,2-Dichloroethane ND 2.0 ug/kg75-35-4 1,1-Dichloroethene ND 2.0 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.0 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.0 ug/kg78-87-5 1,2-Dichloropropane ND 2.0 ug/kg142-28-9 1,3-Dichloropropane ND 5.0 ug/kg594-20-7 2,2-Dichloropropane ND 5.0 ug/kg563-58-6 1,1-Dichloropropene ND 5.0 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.0 ug/kg

272 of 397

MC48470

66.1.3

Page 305: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 2 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2926-MB M81611.D 1 11/01/16 KP n/a n/a MSM2926

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-1, MC48470-6, MC48470-9, MC48470-10, MC48470-11, MC48470-13

CAS No. Compound Result RL Units Q

10061-02-6 trans-1,3-Dichloropropene ND 2.0 ug/kg100-41-4 Ethylbenzene ND 2.0 ug/kg76-13-1 Freon 113 ND 5.0 ug/kg87-68-3 Hexachlorobutadiene ND 5.0 ug/kg591-78-6 2-Hexanone ND 5.0 ug/kg98-82-8 Isopropylbenzene ND 5.0 ug/kg99-87-6 p-Isopropyltoluene ND 5.0 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.0 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.0 ug/kg74-95-3 Methylene bromide ND 5.0 ug/kg75-09-2 Methylene chloride 1.4 2.0 ug/kg J91-20-3 Naphthalene ND 5.0 ug/kg103-65-1 n-Propylbenzene ND 5.0 ug/kg100-42-5 Styrene ND 5.0 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.0 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 5.0 ug/kg127-18-4 Tetrachloroethene ND 2.0 ug/kg109-99-9 Tetrahydrofuran ND 10 ug/kg108-88-3 Toluene ND 5.0 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 10 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 5.0 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 5.0 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.0 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.0 ug/kg79-01-6 Trichloroethene ND 2.0 ug/kg75-69-4 Trichlorofluoromethane ND 2.0 ug/kg96-18-4 1,2,3-Trichloropropane ND 5.0 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 5.0 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 5.0 ug/kg75-01-4 Vinyl chloride ND 10 ug/kg

m,p-Xylene ND 2.0 ug/kg95-47-6 o-Xylene ND 2.0 ug/kg

273 of 397

MC48470

66.1.3

Page 306: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 3 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2926-MB M81611.D 1 11/01/16 KP n/a n/a MSM2926

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-1, MC48470-6, MC48470-9, MC48470-10, MC48470-11, MC48470-13

CAS No. Surrogate Recoveries Limits

1868-53-7 Dibromofluoromethane 138% 65-141%2037-26-5 Toluene-D8 104% 65-129%460-00-4 4-Bromofluorobenzene 96% 63-137%

274 of 397

MC48470

66.1.3

Page 307: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2927-MB M81640.D 1 11/02/16 KP n/a n/a MSM2927

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-4, MC48470-5, MC48470-7, MC48470-8, MC48470-12

CAS No. Compound Result RL Units Q

67-64-1 Acetone ND 10 ug/kg107-13-1 Acrylonitrile ND 25 ug/kg71-43-2 Benzene ND 1.0 ug/kg108-86-1 Bromobenzene ND 5.0 ug/kg75-27-4 Bromodichloromethane ND 2.0 ug/kg75-25-2 Bromoform ND 2.0 ug/kg74-83-9 Bromomethane ND 10 ug/kg78-93-3 2-Butanone (MEK) ND 10 ug/kg104-51-8 n-Butylbenzene ND 5.0 ug/kg135-98-8 sec-Butylbenzene ND 5.0 ug/kg98-06-6 tert-Butylbenzene ND 5.0 ug/kg75-15-0 Carbon disulfide ND 5.0 ug/kg56-23-5 Carbon tetrachloride ND 2.0 ug/kg108-90-7 Chlorobenzene ND 2.0 ug/kg75-00-3 Chloroethane ND 10 ug/kg67-66-3 Chloroform ND 2.0 ug/kg74-87-3 Chloromethane ND 5.0 ug/kg95-49-8 o-Chlorotoluene ND 5.0 ug/kg106-43-4 p-Chlorotoluene ND 5.0 ug/kg96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 ug/kg124-48-1 Dibromochloromethane ND 5.0 ug/kg106-93-4 1,2-Dibromoethane ND 2.0 ug/kg95-50-1 1,2-Dichlorobenzene ND 2.0 ug/kg541-73-1 1,3-Dichlorobenzene ND 2.0 ug/kg106-46-7 1,4-Dichlorobenzene ND 2.0 ug/kg75-71-8 Dichlorodifluoromethane ND 5.0 ug/kg75-34-3 1,1-Dichloroethane ND 2.0 ug/kg107-06-2 1,2-Dichloroethane ND 2.0 ug/kg75-35-4 1,1-Dichloroethene ND 2.0 ug/kg156-59-2 cis-1,2-Dichloroethene ND 2.0 ug/kg156-60-5 trans-1,2-Dichloroethene ND 2.0 ug/kg78-87-5 1,2-Dichloropropane ND 2.0 ug/kg142-28-9 1,3-Dichloropropane ND 5.0 ug/kg594-20-7 2,2-Dichloropropane ND 5.0 ug/kg563-58-6 1,1-Dichloropropene ND 5.0 ug/kg10061-01-5 cis-1,3-Dichloropropene ND 2.0 ug/kg

275 of 397

MC48470

66.1.4

Page 308: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 2 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2927-MB M81640.D 1 11/02/16 KP n/a n/a MSM2927

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-4, MC48470-5, MC48470-7, MC48470-8, MC48470-12

CAS No. Compound Result RL Units Q

10061-02-6 trans-1,3-Dichloropropene ND 2.0 ug/kg100-41-4 Ethylbenzene ND 2.0 ug/kg76-13-1 Freon 113 ND 5.0 ug/kg87-68-3 Hexachlorobutadiene ND 5.0 ug/kg591-78-6 2-Hexanone ND 5.0 ug/kg98-82-8 Isopropylbenzene ND 5.0 ug/kg99-87-6 p-Isopropyltoluene ND 5.0 ug/kg1634-04-4 Methyl Tert Butyl Ether ND 2.0 ug/kg108-10-1 4-Methyl-2-pentanone (MIBK) ND 5.0 ug/kg74-95-3 Methylene bromide ND 5.0 ug/kg75-09-2 Methylene chloride ND 2.0 ug/kg91-20-3 Naphthalene ND 5.0 ug/kg103-65-1 n-Propylbenzene ND 5.0 ug/kg100-42-5 Styrene ND 5.0 ug/kg630-20-6 1,1,1,2-Tetrachloroethane ND 2.0 ug/kg79-34-5 1,1,2,2-Tetrachloroethane ND 5.0 ug/kg127-18-4 Tetrachloroethene ND 2.0 ug/kg109-99-9 Tetrahydrofuran ND 10 ug/kg108-88-3 Toluene ND 5.0 ug/kg110-57-6 Trans-1,4-Dichloro-2-Butene ND 10 ug/kg87-61-6 1,2,3-Trichlorobenzene ND 5.0 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 5.0 ug/kg71-55-6 1,1,1-Trichloroethane ND 2.0 ug/kg79-00-5 1,1,2-Trichloroethane ND 2.0 ug/kg79-01-6 Trichloroethene ND 2.0 ug/kg75-69-4 Trichlorofluoromethane ND 2.0 ug/kg96-18-4 1,2,3-Trichloropropane ND 5.0 ug/kg95-63-6 1,2,4-Trimethylbenzene ND 5.0 ug/kg108-67-8 1,3,5-Trimethylbenzene ND 5.0 ug/kg75-01-4 Vinyl chloride ND 10 ug/kg

m,p-Xylene ND 2.0 ug/kg95-47-6 o-Xylene ND 2.0 ug/kg

276 of 397

MC48470

66.1.4

Page 309: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 3 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2927-MB M81640.D 1 11/02/16 KP n/a n/a MSM2927

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-4, MC48470-5, MC48470-7, MC48470-8, MC48470-12

CAS No. Surrogate Recoveries Limits

1868-53-7 Dibromofluoromethane 143%* a 65-141%2037-26-5 Toluene-D8 105% 65-129%460-00-4 4-Bromofluorobenzene 97% 63-137%

(a) Outside control limits. Associated target analytes are non-detect.

277 of 397

MC48470

66.1.4

Page 310: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 1 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2925-BS M81578.D 1 10/31/16 KP n/a n/a MSM2925

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-2, MC48470-3

Spike BSP BSPCAS No. Compound ug/kg ug/kg % Limits

67-64-1 Acetone 50 90.2 180* a 24-179107-13-1 Acrylonitrile 50 52.8 106 52-15971-43-2 Benzene 50 50.8 102 73-115108-86-1 Bromobenzene 50 48.4 97 76-12175-27-4 Bromodichloromethane 50 50.8 102 76-12275-25-2 Bromoform 50 45.6 91 67-15174-83-9 Bromomethane 50 38.1 76 52-13978-93-3 2-Butanone (MEK) 50 75.6 151 32-151104-51-8 n-Butylbenzene 50 52.0 104 71-124135-98-8 sec-Butylbenzene 50 49.1 98 71-12498-06-6 tert-Butylbenzene 50 48.0 96 66-12575-15-0 Carbon disulfide 50 62.9 126 57-14356-23-5 Carbon tetrachloride 50 51.6 103 73-129108-90-7 Chlorobenzene 50 47.9 96 79-12375-00-3 Chloroethane 50 34.7 69 51-15967-66-3 Chloroform 50 55.2 110 72-12274-87-3 Chloromethane 50 50.0 100 57-14395-49-8 o-Chlorotoluene 50 50.1 100 68-121106-43-4 p-Chlorotoluene 50 49.9 100 68-11996-12-8 1,2-Dibromo-3-chloropropane 50 46.5 93 52-132124-48-1 Dibromochloromethane 50 46.0 92 74-139106-93-4 1,2-Dibromoethane 50 46.6 93 76-13095-50-1 1,2-Dichlorobenzene 50 46.9 94 73-122541-73-1 1,3-Dichlorobenzene 50 49.5 99 74-119106-46-7 1,4-Dichlorobenzene 50 48.7 97 75-11875-71-8 Dichlorodifluoromethane 50 49.3 99 11-18375-34-3 1,1-Dichloroethane 50 52.8 106 70-128107-06-2 1,2-Dichloroethane 50 52.1 104 70-12675-35-4 1,1-Dichloroethene 50 55.9 112 71-136156-59-2 cis-1,2-Dichloroethene 50 57.0 114 78-128156-60-5 trans-1,2-Dichloroethene 50 53.6 107 71-13178-87-5 1,2-Dichloropropane 50 49.5 99 79-124142-28-9 1,3-Dichloropropane 50 50.9 102 78-128594-20-7 2,2-Dichloropropane 50 58.2 116 54-145563-58-6 1,1-Dichloropropene 50 54.8 110 67-12510061-01-5 cis-1,3-Dichloropropene 50 48.5 97 75-126

* = Outside of Control Limits.

278 of 397

MC48470

66.2.1

Page 311: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 2 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2925-BS M81578.D 1 10/31/16 KP n/a n/a MSM2925

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-2, MC48470-3

Spike BSP BSPCAS No. Compound ug/kg ug/kg % Limits

10061-02-6 trans-1,3-Dichloropropene 50 50.1 100 75-128100-41-4 Ethylbenzene 50 49.2 98 76-12276-13-1 Freon 113 50 59.6 119 70-13787-68-3 Hexachlorobutadiene 50 48.6 97 73-137591-78-6 2-Hexanone 50 61.7 123 26-16998-82-8 Isopropylbenzene 50 47.4 95 69-12499-87-6 p-Isopropyltoluene 50 51.1 102 73-1241634-04-4 Methyl Tert Butyl Ether 50 52.8 106 58-133108-10-1 4-Methyl-2-pentanone (MIBK) 50 47.9 96 43-16674-95-3 Methylene bromide 50 48.5 97 76-12575-09-2 Methylene chloride 50 53.3 107 74-12591-20-3 Naphthalene 50 40.6 81 39-158103-65-1 n-Propylbenzene 50 50.2 100 69-121100-42-5 Styrene 50 47.5 95 79-124630-20-6 1,1,1,2-Tetrachloroethane 50 47.9 96 75-13679-34-5 1,1,2,2-Tetrachloroethane 50 49.4 99 66-134127-18-4 Tetrachloroethene 50 48.8 98 76-125109-99-9 Tetrahydrofuran 50 47.9 96 34-177108-88-3 Toluene 50 53.5 107 76-119110-57-6 Trans-1,4-Dichloro-2-Butene 50 49.2 98 57-14087-61-6 1,2,3-Trichlorobenzene 50 46.2 92 52-146120-82-1 1,2,4-Trichlorobenzene 50 45.2 90 66-13371-55-6 1,1,1-Trichloroethane 50 55.5 111 70-13079-00-5 1,1,2-Trichloroethane 50 50.7 101 75-12479-01-6 Trichloroethene 50 49.1 98 74-12775-69-4 Trichlorofluoromethane 50 42.9 86 48-15696-18-4 1,2,3-Trichloropropane 50 48.3 97 65-13095-63-6 1,2,4-Trimethylbenzene 50 50.3 101 69-119108-67-8 1,3,5-Trimethylbenzene 50 52.4 105 69-12375-01-4 Vinyl chloride 50 41.5 83 33-166

m,p-Xylene 100 99.3 99 78-12295-47-6 o-Xylene 50 47.2 94 77-123

* = Outside of Control Limits.

279 of 397

MC48470

66.2.1

Page 312: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 3 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2925-BS M81578.D 1 10/31/16 KP n/a n/a MSM2925

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-2, MC48470-3

CAS No. Surrogate Recoveries BSP Limits

1868-53-7 Dibromofluoromethane 113% 65-141%2037-26-5 Toluene-D8 102% 65-129%460-00-4 4-Bromofluorobenzene 96% 63-137%

(a) Outside control limits. Associated samples may be high biased for this compound.

* = Outside of Control Limits.

280 of 397

MC48470

66.2.1

Page 313: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 1 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2926-BS M81609.D 1 11/01/16 KP n/a n/a MSM2926

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-1, MC48470-6, MC48470-9, MC48470-10, MC48470-11, MC48470-13

Spike BSP BSPCAS No. Compound ug/kg ug/kg % Limits

67-64-1 Acetone 50 186 372* a 24-179107-13-1 Acrylonitrile 50 54.5 109 52-15971-43-2 Benzene 50 52.6 105 73-115108-86-1 Bromobenzene 50 52.3 105 76-12175-27-4 Bromodichloromethane 50 52.1 104 76-12275-25-2 Bromoform 50 47.5 95 67-15174-83-9 Bromomethane 50 36.2 72 52-13978-93-3 2-Butanone (MEK) 50 79.4 159* b 32-151104-51-8 n-Butylbenzene 50 55.3 111 71-124135-98-8 sec-Butylbenzene 50 52.4 105 71-12498-06-6 tert-Butylbenzene 50 50.5 101 66-12575-15-0 Carbon disulfide 50 62.8 126 57-14356-23-5 Carbon tetrachloride 50 53.5 107 73-129108-90-7 Chlorobenzene 50 50.8 102 79-12375-00-3 Chloroethane 50 34.9 70 51-15967-66-3 Chloroform 50 55.0 110 72-12274-87-3 Chloromethane 50 47.7 95 57-14395-49-8 o-Chlorotoluene 50 53.1 106 68-121106-43-4 p-Chlorotoluene 50 52.7 105 68-11996-12-8 1,2-Dibromo-3-chloropropane 50 47.1 94 52-132124-48-1 Dibromochloromethane 50 48.1 96 74-139106-93-4 1,2-Dibromoethane 50 49.1 98 76-13095-50-1 1,2-Dichlorobenzene 50 50.1 100 73-122541-73-1 1,3-Dichlorobenzene 50 52.6 105 74-119106-46-7 1,4-Dichlorobenzene 50 51.1 102 75-11875-71-8 Dichlorodifluoromethane 50 42.2 84 11-18375-34-3 1,1-Dichloroethane 50 52.7 105 70-128107-06-2 1,2-Dichloroethane 50 52.5 105 70-12675-35-4 1,1-Dichloroethene 50 56.8 114 71-136156-59-2 cis-1,2-Dichloroethene 50 58.0 116 78-128156-60-5 trans-1,2-Dichloroethene 50 54.4 109 71-13178-87-5 1,2-Dichloropropane 50 51.7 103 79-124142-28-9 1,3-Dichloropropane 50 52.6 105 78-128594-20-7 2,2-Dichloropropane 50 57.7 115 54-145563-58-6 1,1-Dichloropropene 50 55.8 112 67-12510061-01-5 cis-1,3-Dichloropropene 50 49.9 100 75-126

* = Outside of Control Limits.

281 of 397

MC48470

66.2.2

Page 314: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 2 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2926-BS M81609.D 1 11/01/16 KP n/a n/a MSM2926

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-1, MC48470-6, MC48470-9, MC48470-10, MC48470-11, MC48470-13

Spike BSP BSPCAS No. Compound ug/kg ug/kg % Limits

10061-02-6 trans-1,3-Dichloropropene 50 51.4 103 75-128100-41-4 Ethylbenzene 50 52.3 105 76-12276-13-1 Freon 113 50 60.6 121 70-13787-68-3 Hexachlorobutadiene 50 51.6 103 73-137591-78-6 2-Hexanone 50 64.9 130 26-16998-82-8 Isopropylbenzene 50 50.9 102 69-12499-87-6 p-Isopropyltoluene 50 54.7 109 73-1241634-04-4 Methyl Tert Butyl Ether 50 54.1 108 58-133108-10-1 4-Methyl-2-pentanone (MIBK) 50 50.5 101 43-16674-95-3 Methylene bromide 50 50.8 102 76-12575-09-2 Methylene chloride 50 56.2 112 74-12591-20-3 Naphthalene 50 43.7 87 39-158103-65-1 n-Propylbenzene 50 53.1 106 69-121100-42-5 Styrene 50 51.0 102 79-124630-20-6 1,1,1,2-Tetrachloroethane 50 50.9 102 75-13679-34-5 1,1,2,2-Tetrachloroethane 50 51.2 102 66-134127-18-4 Tetrachloroethene 50 51.5 103 76-125109-99-9 Tetrahydrofuran 50 47.7 95 34-177108-88-3 Toluene 50 51.6 103 76-119110-57-6 Trans-1,4-Dichloro-2-Butene 50 49.7 99 57-14087-61-6 1,2,3-Trichlorobenzene 50 50.1 100 52-146120-82-1 1,2,4-Trichlorobenzene 50 49.0 98 66-13371-55-6 1,1,1-Trichloroethane 50 55.2 110 70-13079-00-5 1,1,2-Trichloroethane 50 51.7 103 75-12479-01-6 Trichloroethene 50 51.0 102 74-12775-69-4 Trichlorofluoromethane 50 42.1 84 48-15696-18-4 1,2,3-Trichloropropane 50 50.0 100 65-13095-63-6 1,2,4-Trimethylbenzene 50 53.3 107 69-119108-67-8 1,3,5-Trimethylbenzene 50 55.6 111 69-12375-01-4 Vinyl chloride 50 40.7 81 33-166

m,p-Xylene 100 107 107 78-12295-47-6 o-Xylene 50 50.7 101 77-123

* = Outside of Control Limits.

282 of 397

MC48470

66.2.2

Page 315: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 3 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2926-BS M81609.D 1 11/01/16 KP n/a n/a MSM2926

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-1, MC48470-6, MC48470-9, MC48470-10, MC48470-11, MC48470-13

CAS No. Surrogate Recoveries BSP Limits

1868-53-7 Dibromofluoromethane 107% 65-141%2037-26-5 Toluene-D8 102% 65-129%460-00-4 4-Bromofluorobenzene 94% 63-137%

(a) Outside control limits. Associated samples may be high biased for this compound.(b) Outside control limits. Associated samples are non-detect for this compound.

* = Outside of Control Limits.

283 of 397

MC48470

66.2.2

Page 316: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 1 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2927-BS M81638.D 1 11/02/16 KP n/a n/a MSM2927

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-4, MC48470-5, MC48470-7, MC48470-8, MC48470-12

Spike BSP BSPCAS No. Compound ug/kg ug/kg % Limits

67-64-1 Acetone 50 95.4 191* a 24-179107-13-1 Acrylonitrile 50 57.2 114 52-15971-43-2 Benzene 50 54.5 109 73-115108-86-1 Bromobenzene 50 51.6 103 76-12175-27-4 Bromodichloromethane 50 54.5 109 76-12275-25-2 Bromoform 50 47.1 94 67-15174-83-9 Bromomethane 50 43.0 86 52-13978-93-3 2-Butanone (MEK) 50 81.0 162* a 32-151104-51-8 n-Butylbenzene 50 55.8 112 71-124135-98-8 sec-Butylbenzene 50 53.0 106 71-12498-06-6 tert-Butylbenzene 50 51.3 103 66-12575-15-0 Carbon disulfide 50 66.3 133 57-14356-23-5 Carbon tetrachloride 50 56.8 114 73-129108-90-7 Chlorobenzene 50 49.6 99 79-12375-00-3 Chloroethane 50 38.4 77 51-15967-66-3 Chloroform 50 59.2 118 72-12274-87-3 Chloromethane 50 48.2 96 57-14395-49-8 o-Chlorotoluene 50 53.9 108 68-121106-43-4 p-Chlorotoluene 50 52.5 105 68-11996-12-8 1,2-Dibromo-3-chloropropane 50 49.6 99 52-132124-48-1 Dibromochloromethane 50 48.3 97 74-139106-93-4 1,2-Dibromoethane 50 49.0 98 76-13095-50-1 1,2-Dichlorobenzene 50 50.8 102 73-122541-73-1 1,3-Dichlorobenzene 50 52.5 105 74-119106-46-7 1,4-Dichlorobenzene 50 51.4 103 75-11875-71-8 Dichlorodifluoromethane 50 41.1 82 11-18375-34-3 1,1-Dichloroethane 50 56.3 113 70-128107-06-2 1,2-Dichloroethane 50 55.9 112 70-12675-35-4 1,1-Dichloroethene 50 60.8 122 71-136156-59-2 cis-1,2-Dichloroethene 50 61.1 122 78-128156-60-5 trans-1,2-Dichloroethene 50 57.2 114 71-13178-87-5 1,2-Dichloropropane 50 53.6 107 79-124142-28-9 1,3-Dichloropropane 50 53.6 107 78-128594-20-7 2,2-Dichloropropane 50 64.1 128 54-145563-58-6 1,1-Dichloropropene 50 57.3 115 67-12510061-01-5 cis-1,3-Dichloropropene 50 50.7 101 75-126

* = Outside of Control Limits.

284 of 397

MC48470

66.2.3

Page 317: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 2 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2927-BS M81638.D 1 11/02/16 KP n/a n/a MSM2927

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-4, MC48470-5, MC48470-7, MC48470-8, MC48470-12

Spike BSP BSPCAS No. Compound ug/kg ug/kg % Limits

10061-02-6 trans-1,3-Dichloropropene 50 54.0 108 75-128100-41-4 Ethylbenzene 50 51.7 103 76-12276-13-1 Freon 113 50 66.5 133 70-13787-68-3 Hexachlorobutadiene 50 53.0 106 73-137591-78-6 2-Hexanone 50 64.5 129 26-16998-82-8 Isopropylbenzene 50 50.8 102 69-12499-87-6 p-Isopropyltoluene 50 54.7 109 73-1241634-04-4 Methyl Tert Butyl Ether 50 56.7 113 58-133108-10-1 4-Methyl-2-pentanone (MIBK) 50 51.2 102 43-16674-95-3 Methylene bromide 50 53.0 106 76-12575-09-2 Methylene chloride 50 59.6 119 74-12591-20-3 Naphthalene 50 43.8 88 39-158103-65-1 n-Propylbenzene 50 53.4 107 69-121100-42-5 Styrene 50 50.0 100 79-124630-20-6 1,1,1,2-Tetrachloroethane 50 51.7 103 75-13679-34-5 1,1,2,2-Tetrachloroethane 50 52.9 106 66-134127-18-4 Tetrachloroethene 50 50.2 100 76-125109-99-9 Tetrahydrofuran 50 49.9 100 34-177108-88-3 Toluene 50 55.0 110 76-119110-57-6 Trans-1,4-Dichloro-2-Butene 50 51.0 102 57-14087-61-6 1,2,3-Trichlorobenzene 50 50.8 102 52-146120-82-1 1,2,4-Trichlorobenzene 50 49.2 98 66-13371-55-6 1,1,1-Trichloroethane 50 61.1 122 70-13079-00-5 1,1,2-Trichloroethane 50 54.5 109 75-12479-01-6 Trichloroethene 50 51.4 103 74-12775-69-4 Trichlorofluoromethane 50 46.4 93 48-15696-18-4 1,2,3-Trichloropropane 50 51.3 103 65-13095-63-6 1,2,4-Trimethylbenzene 50 54.0 108 69-119108-67-8 1,3,5-Trimethylbenzene 50 56.6 113 69-12375-01-4 Vinyl chloride 50 41.4 83 33-166

m,p-Xylene 100 104 104 78-12295-47-6 o-Xylene 50 50.2 100 77-123

* = Outside of Control Limits.

285 of 397

MC48470

66.2.3

Page 318: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 3 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSM2927-BS M81638.D 1 11/02/16 KP n/a n/a MSM2927

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-4, MC48470-5, MC48470-7, MC48470-8, MC48470-12

CAS No. Surrogate Recoveries BSP Limits

1868-53-7 Dibromofluoromethane 114% 65-141%2037-26-5 Toluene-D8 103% 65-129%460-00-4 4-Bromofluorobenzene 94% 63-137%

(a) Outside control limits. Associated samples may be high biased for this compound.

* = Outside of Control Limits.

286 of 397

MC48470

66.2.3

Page 319: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike/Blank Spike Duplicate Summary Page 1 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSN3894-BS N105969.D 1 10/31/16 CB n/a n/a MSN3894MSN3894-BSD N105970.D 1 10/31/16 CB n/a n/a MSN3894

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-14, MC48470-15, MC48470-16, MC48470-17, MC48470-19

Spike BSP BSP BSD BSD LimitsCAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD

67-64-1 Acetone 50 45.8 92 41.9 84 9 24-200/25107-13-1 Acrylonitrile 50 41.2 82 40.0 80 3 47-147/2571-43-2 Benzene 50 44.9 90 45.9 92 2 66-123/25108-86-1 Bromobenzene 50 49.7 99 50.7 101 2 73-124/2575-27-4 Bromodichloromethane 50 50.6 101 51.1 102 1 68-130/2575-25-2 Bromoform 50 47.0 94 46.5 93 1 61-149/2574-83-9 Bromomethane 50 38.1 76 37.8 76 1 52-151/2578-93-3 2-Butanone (MEK) 50 40.7 81 39.6 79 3 45-171/25104-51-8 n-Butylbenzene 50 54.8 110 55.5 111 1 80-134/30135-98-8 sec-Butylbenzene 50 53.2 106 54.0 108 1 77-132/2598-06-6 tert-Butylbenzene 50 51.8 104 52.9 106 2 71-130/2575-15-0 Carbon disulfide 50 38.6 77 39.0 78 1 24-164/2556-23-5 Carbon tetrachloride 50 49.5 99 50.7 101 2 54-151/25108-90-7 Chlorobenzene 50 51.7 103 51.1 102 1 75-117/2575-00-3 Chloroethane 50 38.8 78 39.6 79 2 54-160/2567-66-3 Chloroform 50 45.8 92 45.9 92 0 65-127/2574-87-3 Chloromethane 50 40.2 80 40.0 80 0 43-154/2595-49-8 o-Chlorotoluene 50 47.2 94 48.4 97 3 71-128/25106-43-4 p-Chlorotoluene 50 48.0 96 48.5 97 1 71-125/2596-12-8 1,2-Dibromo-3-chloropropane 50 43.7 87 44.5 89 2 53-145/25124-48-1 Dibromochloromethane 50 54.7 109 53.7 107 2 67-137/25106-93-4 1,2-Dibromoethane 50 51.6 103 50.6 101 2 73-126/2595-50-1 1,2-Dichlorobenzene 50 50.5 101 51.3 103 2 75-124/25541-73-1 1,3-Dichlorobenzene 50 48.6 97 49.2 98 1 76-120/25106-46-7 1,4-Dichlorobenzene 50 49.0 98 49.4 99 1 77-117/2575-71-8 Dichlorodifluoromethane 50 45.0 90 45.1 90 0 20-161/2575-34-3 1,1-Dichloroethane 50 41.2 82 41.4 83 0 55-128/25107-06-2 1,2-Dichloroethane 50 47.0 94 47.4 95 1 68-126/2575-35-4 1,1-Dichloroethene 50 41.8 84 41.9 84 0 44-148/25156-59-2 cis-1,2-Dichloroethene 50 46.8 94 46.7 93 0 63-132/25156-60-5 trans-1,2-Dichloroethene 50 39.7 79 39.7 79 0 54-127/2578-87-5 1,2-Dichloropropane 50 47.2 94 47.2 94 0 68-123/25142-28-9 1,3-Dichloropropane 50 51.3 103 50.8 102 1 75-130/25594-20-7 2,2-Dichloropropane 50 43.7 87 43.3 87 1 47-156/25563-58-6 1,1-Dichloropropene 50 50.9 102 52.1 104 2 65-123/2510061-01-5 cis-1,3-Dichloropropene 50 49.4 99 50.3 101 2 61-145/25

* = Outside of Control Limits.

287 of 397

MC48470

66.3.1

Page 320: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike/Blank Spike Duplicate Summary Page 2 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSN3894-BS N105969.D 1 10/31/16 CB n/a n/a MSN3894MSN3894-BSD N105970.D 1 10/31/16 CB n/a n/a MSN3894

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-14, MC48470-15, MC48470-16, MC48470-17, MC48470-19

Spike BSP BSP BSD BSD LimitsCAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD

10061-02-6 trans-1,3-Dichloropropene 50 46.2 92 46.3 93 0 60-134/25100-41-4 Ethylbenzene 50 52.3 105 52.0 104 1 74-127/2576-13-1 Freon 113 50 47.0 94 46.8 94 0 39-154/2587-68-3 Hexachlorobutadiene 50 61.5 123 62.8 126 2 71-141/25591-78-6 2-Hexanone 50 47.9 96 46.7 93 3 44-166/2598-82-8 Isopropylbenzene 50 49.2 98 50.7 101 3 70-131/2599-87-6 p-Isopropyltoluene 50 53.5 107 53.8 108 1 79-131/251634-04-4 Methyl Tert Butyl Ether 50 46.7 93 46.7 93 0 59-135/25108-10-1 4-Methyl-2-pentanone (MIBK) 50 44.2 88 44.2 88 0 63-138/2574-95-3 Methylene bromide 50 48.0 96 49.0 98 2 70-124/2575-09-2 Methylene chloride 50 40.4 81 40.1 80 1 54-132/2591-20-3 Naphthalene 50 50.5 101 51.0 102 1 37-145/25103-65-1 n-Propylbenzene 50 47.6 95 48.9 98 3 71-128/25100-42-5 Styrene 50 55.9 112 54.9 110 2 76-130/25630-20-6 1,1,1,2-Tetrachloroethane 50 56.2 112 55.7 111 1 71-139/2579-34-5 1,1,2,2-Tetrachloroethane 50 45.3 91 45.7 91 1 62-130/25127-18-4 Tetrachloroethene 50 56.1 112 55.6 111 1 68-133/25109-99-9 Tetrahydrofuran 50 37.5 75 37.5 75 0 52-131/25108-88-3 Toluene 50 49.1 98 50.0 100 2 73-124/25110-57-6 Trans-1,4-Dichloro-2-Butene 50 49.8 100 47.8 96 4 26-163/2587-61-6 1,2,3-Trichlorobenzene 50 54.9 110 55.8 112 2 58-144/25120-82-1 1,2,4-Trichlorobenzene 50 53.6 107 55.1 110 3 63-137/2571-55-6 1,1,1-Trichloroethane 50 48.0 96 48.3 97 1 60-135/2579-00-5 1,1,2-Trichloroethane 50 49.8 100 49.6 99 0 72-125/2579-01-6 Trichloroethene 50 49.3 99 50.2 100 2 73-120/2575-69-4 Trichlorofluoromethane 50 44.4 89 44.8 90 1 52-152/2596-18-4 1,2,3-Trichloropropane 50 44.0 88 43.7 87 1 56-136/2595-63-6 1,2,4-Trimethylbenzene 50 48.8 98 49.6 99 2 76-125/25108-67-8 1,3,5-Trimethylbenzene 50 51.2 102 52.1 104 2 76-132/2575-01-4 Vinyl chloride 50 36.0 72 36.4 73 1 49-154/25

m,p-Xylene 100 106 106 104 104 2 73-129/2595-47-6 o-Xylene 50 54.2 108 53.5 107 1 73-128/25

* = Outside of Control Limits.

288 of 397

MC48470

66.3.1

Page 321: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike/Blank Spike Duplicate Summary Page 3 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchMSN3894-BS N105969.D 1 10/31/16 CB n/a n/a MSN3894MSN3894-BSD N105970.D 1 10/31/16 CB n/a n/a MSN3894

The QC reported here applies to the following samples: Method: SW846 8260C

MC48470-14, MC48470-15, MC48470-16, MC48470-17, MC48470-19

CAS No. Surrogate Recoveries BSP BSD Limits

1868-53-7 Dibromofluoromethane 98% 95% 76-129%2037-26-5 Toluene-D8 102% 101% 83-114%460-00-4 4-Bromofluorobenzene 95% 96% 75-124%

* = Outside of Control Limits.

289 of 397

MC48470

66.3.1

Page 322: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Volatile Internal Standard Area Summary Page 1 of 2 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Check Std: MSM2925-CC2904 Injection Date: 10/31/16Lab File ID: M81577.D Injection Time: 09:51 Instrument ID: GCMSM Method: SW846 8260C

IS 1 IS 2 IS 3 IS 4 IS 5AREA RT AREA RT AREA RT AREA RT AREA RT

Check Std 94178 9.77 156147 10.67 82993 13.90 96987 16.49 50403 7.70Upper Limit a 188356 10.27 312294 11.17 165986 14.40 193974 16.99 100806 8.20Lower Limit b 47089 9.27 78074 10.17 41497 13.40 48494 15.99 25202 7.20

Lab IS 1 IS 2 IS 3 IS 4 IS 5Sample ID AREA RT AREA RT AREA RT AREA RT AREA RT

MSM2925-BS 105214 9.77 175975 10.67 89744 13.90 103508 16.49 54456 7.70MSM2925-MB 77377 9.77 132992 10.67 69135 13.90 71763 16.49 43845 7.68ZZZZZZ 71525 9.77 120886 10.67 62727 13.90 60020 16.49 36856 7.70ZZZZZZ 59602 9.77 100818 10.67 40198c 13.90 20970d 16.49 33820 7.68ZZZZZZ 64300 9.77 114547 10.67 55823 13.90 39325d 16.49 38256 7.68MC48441-23 79490 9.77 135982 10.67 107560 13.90 135667 16.49 40755 7.69MC48441-23MS e 121031 9.77 191734 10.67 139544 13.90 159340 16.49 63225 7.70MC48441-23MSD e125077 9.77 194817 10.67 171926f 13.90 167630 16.49 72994 7.70ZZZZZZ 125709 9.77 200158 10.67 96870 13.90 106605 16.49 64099 7.68ZZZZZZ 122836 9.77 195888 10.67 95859 13.90 115037 16.48 96023 7.68ZZZZZZ 117117 9.77 189015 10.67 94033 13.90 114590 16.49 97827 7.68ZZZZZZ 120641 9.77 195078 10.67 94796 13.90 113617 16.49 91701 7.68ZZZZZZ 120046 9.77 192694 10.67 92793 13.90 107992 16.48 99001 7.68ZZZZZZ 122090 9.77 195429 10.67 92835 13.90 109101 16.49 92736 7.68ZZZZZZ 111112 9.77 179275 10.67 86357 13.90 101871 16.48 95668 7.68ZZZZZZ 107658 9.77 174520 10.67 84932 13.90 101476 16.49 84436 7.68ZZZZZZ 101250 9.77 164834 10.67 71424 13.90 57945 16.49 83392 7.68ZZZZZZ 21770d 9.77 39732d 10.67 7436d 13.90 2826d 16.49 84450 7.68ZZZZZZ 83469 9.77 126324 10.67 43567 13.90 25740d 16.49 77980 7.68ZZZZZZ 85048 9.77 135050 10.67 52782 13.90 34668d 16.49 73280 7.68MC48470-2 98054 9.77 160645 10.67 78522 13.90 87748 16.49 45267 7.68MC48470-3 85145 9.77 139927 10.67 70167 13.90 76914 16.49 47123 7.68ZZZZZZ 86770 9.77 145715 10.67 75960 13.90 82198 16.49 45337 7.68ZZZZZZ 84645 9.77 141264 10.67 72045 13.90 80116 16.49 39332 7.68

IS 1 = PentafluorobenzeneIS 2 = 1,4-DifluorobenzeneIS 3 = Chlorobenzene-D5IS 4 = 1,4-Dichlorobenzene-d4IS 5 = Tert Butyl Alcohol-D9

(a) Upper Limit = +100% of check standard area; Retention time +0.5 minutes.(b) Lower Limit = -50% of check standard area; Retention time -0.5 minutes.(c) Outside control limits. Sample results confirmed by reanalysis.(d) Outside control limits due to possible matrix interference. Confirmed by reanalysis.

290 of 397

MC48470

66.4.1

Page 323: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Volatile Internal Standard Area Summary Page 2 of 2 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Check Std: MSM2925-CC2904 Injection Date: 10/31/16Lab File ID: M81577.D Injection Time: 09:51 Instrument ID: GCMSM Method: SW846 8260C

Lab IS 1 IS 2 IS 3 IS 4 IS 5Sample ID AREA RT AREA RT AREA RT AREA RT AREA RT

(e) Analytical results based on analysis of intact sample. Sample results may be biased low due to sample notbeing preserved according to 5035-L/5035A-L specifications.

(f) Outside control limits due to possible matrix interference.

291 of 397

MC48470

66.4.1

Page 324: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Volatile Internal Standard Area Summary Page 1 of 2 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Check Std: MSM2926-CC2904 Injection Date: 11/01/16Lab File ID: M81608.D Injection Time: 10:06 Instrument ID: GCMSM Method: SW846 8260C

IS 1 IS 2 IS 3 IS 4 IS 5AREA RT AREA RT AREA RT AREA RT AREA RT

Check Std 99044 9.77 161470 10.67 83497 13.90 97424 16.49 51827 7.70Upper Limit a 198088 10.27 322940 11.17 166994 14.40 194848 16.99 103654 8.20Lower Limit b 49522 9.27 80735 10.17 41749 13.40 48712 15.99 25914 7.20

Lab IS 1 IS 2 IS 3 IS 4 IS 5Sample ID AREA RT AREA RT AREA RT AREA RT AREA RT

MSM29296-BS 106495 9.77 172558 10.67 87171 13.90 100615 16.48 54442 7.69MSM2926-BS 106495 9.77 172558 10.67 87171 13.90 100615 16.48 54442 7.69MSM2926-MB 74034 9.77 126852 10.67 64288 13.90 69174 16.49 42805 7.68ZZZZZZ 78444 9.77 134080 10.67 63458 13.90 50183 16.49 69863 7.68ZZZZZZ 51851 9.77 75983c 10.67 25767c 13.89 12487d 16.48 62214 7.68ZZZZZZ 62844 9.77 104339 10.67 45993 13.90 27838d 16.49 60176 7.68ZZZZZZ 12896d 9.77 22831d 10.67 5194d 13.90 1635d 16.49 57868 7.68MC48470-1 71189 9.77 124383 10.67 63368 13.90 52854 16.49 35259 7.68MC48470-4 e 62470 9.77 106480 10.67 54801 13.90 47713d 16.49 33751 7.68MC48470-5 e 60401 9.77 101990 10.67 50050 13.90 35478d 16.49 32979 7.68MC48470-6 63128 9.77 108212 10.67 57958 13.90 57600 16.49 38923 7.68MC48470-7 e 46154d 9.77 78497d 10.67 44655 13.90 43862d 16.49 30643 7.68MC48470-8 e 14765d 9.77 21154d 10.67 13069d 13.90 11720d 16.49 10503d 7.67MC48470-9 57179 9.77 99444 10.68 54994 13.90 54989 16.49 32813 7.68MC48470-10 61208 9.77 107014 10.67 53923 13.90 41148d 16.49 31097 7.68MC48470-11 59166 9.77 102360 10.67 55576 13.90 51792 16.49 36901 7.68MC48470-12 e 8984d 9.77 12298d 10.67 7838d 13.90 7352d 16.48 6716d 7.67MC48470-13 57312 9.77 97914 10.67 46912 13.90 29431d 16.49 28622 7.68ZZZZZZ 51707 9.77 89247 10.67 50247 13.90 50031 16.49 30577 7.68ZZZZZZ 51216 9.77 88544 10.67 49762 13.90 52290 16.49 29648 7.68MC48482-1 54890 9.77 97933 10.67 47591 13.90 31329f 16.49 33260 7.68MC48482-1MS 69128 9.77 117344 10.67 58980 13.90 53711 16.48 43205 7.70MC48482-1MSD 78320 9.77 130338 10.67 59256 13.89 42446d 16.48 45630 7.69

IS 1 = PentafluorobenzeneIS 2 = 1,4-DifluorobenzeneIS 3 = Chlorobenzene-D5IS 4 = 1,4-Dichlorobenzene-d4IS 5 = Tert Butyl Alcohol-D9

(a) Upper Limit = +100% of check standard area; Retention time +0.5 minutes.(b) Lower Limit = -50% of check standard area; Retention time -0.5 minutes.(c) Outside control limits. Sample results confirmed by reanalysis.(d) Outside control limits due to possible matrix interference. Confirmed by reanalysis.(e) Confirmation run for surrogate recoveries.

292 of 397

MC48470

66.4.2

Page 325: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Volatile Internal Standard Area Summary Page 2 of 2 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Check Std: MSM2926-CC2904 Injection Date: 11/01/16Lab File ID: M81608.D Injection Time: 10:06 Instrument ID: GCMSM Method: SW846 8260C

Lab IS 1 IS 2 IS 3 IS 4 IS 5Sample ID AREA RT AREA RT AREA RT AREA RT AREA RT

(f) Outside control limits due to possible matrix interference. Confirmed by MS/MSD.

293 of 397

MC48470

66.4.2

Page 326: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Volatile Internal Standard Area Summary Page 1 of 2 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Check Std: MSM2927-CC2904 Injection Date: 11/02/16Lab File ID: M81637.D Injection Time: 09:32 Instrument ID: GCMSM Method: SW846 8260C

IS 1 IS 2 IS 3 IS 4 IS 5AREA RT AREA RT AREA RT AREA RT AREA RT

Check Std 86042 9.77 145165 10.67 78119 13.90 91277 16.49 44423 7.70Upper Limit a 172084 10.27 290330 11.17 156238 14.40 182554 16.99 88846 8.20Lower Limit b 43021 9.27 72583 10.17 39060 13.40 45639 15.99 22212 7.20

Lab IS 1 IS 2 IS 3 IS 4 IS 5Sample ID AREA RT AREA RT AREA RT AREA RT AREA RT

MSM2926-BS1 88645 9.77 147973 10.67 77896 13.90 89309 16.49 48523 7.68MSM2927-BS 88645 9.77 147973 10.67 77896 13.90 89309 16.49 48523 7.68MSM2926-MB1 71229 9.77 123392 10.67 64440 13.90 66453 16.49 38660 7.68MSM2927-MB 71229 9.77 123392 10.67 64440 13.90 66453 16.49 38660 7.68MC48470-4 68151 9.77 113601 10.68 57487 13.90 46765 16.49 31947 7.68MC48470-5 73159 9.77 125825 10.67 65041 13.90 64931 16.49 40772 7.68MC48470-7 66507 9.77 115972 10.67 61085 13.90 60473 16.49 39514 7.69MC48470-8 63342 9.77 110913 10.67 59302 13.90 62676 16.49 38370 7.68MC48470-10 c 3574d 9.77 4822d 10.67 2803d 13.90 2255d 16.49 2529e 7.66MC48470-12 57346 9.77 101127 10.67 55511 13.90 58371 16.49 33955 7.69MC48470-13 c 57426 9.78 99204 10.67 48503 13.90 32192d 16.49 31148 7.68MC48482-1MS 86834 9.78 144260 10.67 75446 13.90 80215 16.49 50859 7.69ZZZZZZ 61601 9.78 107742 10.68 57592 13.90 65831 16.49 80828 7.69MC48472-1 72629 9.78 128786 10.68 67917 13.90 78096 16.49 63669 7.68ZZZZZZ 71378 9.78 124101 10.67 64176 13.90 65771 16.49 78860 7.69ZZZZZZ 71319 9.77 125723 10.67 65453 13.90 69831 16.49 77160 7.68ZZZZZZ 69557 9.77 124927 10.68 61816 13.90 57590 16.49 69859 7.68ZZZZZZ 69090 9.77 127199 10.67 65993 13.90 62035 16.49 69600 7.69ZZZZZZ 61432 9.77 107735 10.68 58639 13.90 58038 16.49 67177 7.68ZZZZZZ 69861 9.77 126405 10.67 65889 13.90 60375 16.49 62220 7.69ZZZZZZ 15229d 9.77 23243d 10.67 13762d 13.90 12149d 16.49 11826d 7.68ZZZZZZ 59558 9.77 102257 10.68 55338 13.90 50729 16.49 35943 7.68ZZZZZZ 57442 9.77 101487 10.67 51846 13.90 38068d 16.49 36044 7.68MC48472-1MS 83329 9.77 137410 10.68 73665 13.90 85891 16.49 44290 7.68MC48472-1MSD 88154 9.77 143541 10.67 75336 13.90 86488 16.49 47919 7.68

IS 1 = PentafluorobenzeneIS 2 = 1,4-DifluorobenzeneIS 3 = Chlorobenzene-D5IS 4 = 1,4-Dichlorobenzene-d4IS 5 = Tert Butyl Alcohol-D9

(a) Upper Limit = +100% of check standard area; Retention time +0.5 minutes.(b) Lower Limit = -50% of check standard area; Retention time -0.5 minutes.(c) Confirmation run for internal standard areas.

294 of 397

MC48470

66.4.3

Page 327: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Volatile Internal Standard Area Summary Page 2 of 2 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Check Std: MSM2927-CC2904 Injection Date: 11/02/16Lab File ID: M81637.D Injection Time: 09:32 Instrument ID: GCMSM Method: SW846 8260C

Lab IS 1 IS 2 IS 3 IS 4 IS 5Sample ID AREA RT AREA RT AREA RT AREA RT AREA RT

(d) Outside control limits due to possible matrix interference. Confirmed by reanalysis.(e) Outside control limits. Target analytes not associated with this internal standard.

295 of 397

MC48470

66.4.3

Page 328: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Volatile Internal Standard Area Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Check Std: MSN3894-CC3876 Injection Date: 10/31/16Lab File ID: N105968.D Injection Time: 21:21 Instrument ID: GCMSN Method: SW846 8260C

IS 1 IS 2 IS 3 IS 4 IS 5AREA RT AREA RT AREA RT AREA RT AREA RT

Check Std 680908 9.35 1074208 10.22 585954 13.40 509065 15.96 264560 7.34Upper Limit a 1361816 9.85 2148416 10.72 1171908 13.90 1018130 16.46 529120 7.84Lower Limit b 340454 8.85 537104 9.72 292977 12.90 254533 15.46 132280 6.84

Lab IS 1 IS 2 IS 3 IS 4 IS 5Sample ID AREA RT AREA RT AREA RT AREA RT AREA RT

MSN3894-BS 679304 9.35 1075923 10.22 582861 13.40 518670 15.96 273874 7.34MSN3894-BSD 696942 9.35 1085182 10.22 599742 13.40 515893 15.96 276133 7.34MSN3894-MB 688870 9.35 1074853 10.22 593759 13.40 512612 15.96 273153 7.34ZZZZZZ 667797 9.35 1050330 10.22 576961 13.40 497132 15.96 272586 7.34ZZZZZZ 661190 9.35 1034101 10.22 572831 13.40 499364 15.96 257017 7.34ZZZZZZ 665394 9.35 1036286 10.22 564160 13.40 496464 15.96 257739 7.34MC48470-14 665587 9.35 1048105 10.22 578343 13.40 478558 15.96 259520 7.34MC48470-19 652076 9.35 1018800 10.22 559477 13.40 491972 15.96 266164 7.34ZZZZZZ 669658 9.35 1045420 10.22 571869 13.40 491333 15.96 261622 7.34MC48470-15 666166 9.35 1047449 10.22 583915 13.40 483154 15.96 252787 7.34MC48470-16 638177 9.35 1011679 10.22 558343 13.39 484933 15.96 252243 7.34MC48470-17 644632 9.35 1014149 10.22 557823 13.40 488291 15.96 253723 7.34ZZZZZZ 637841 9.35 1017917 10.22 559418 13.40 487056 15.96 264182 7.34ZZZZZZ 629621 9.35 1011293 10.22 550679 13.39 482244 15.96 251083 7.34ZZZZZZ 630277 9.35 996215 10.22 555258 13.40 481539 15.96 270310 7.34ZZZZZZ 638143 9.35 1011899 10.22 558836 13.40 481084 15.96 245604 7.34ZZZZZZ 639298 9.35 1004627 10.22 554104 13.40 482927 15.96 253957 7.34ZZZZZZ 641642 9.35 1008188 10.22 552285 13.40 485110 15.96 266943 7.34ZZZZZZ 624150 9.35 991429 10.22 543288 13.40 485131 15.96 256375 7.34

IS 1 = PentafluorobenzeneIS 2 = 1,4-DifluorobenzeneIS 3 = Chlorobenzene-D5IS 4 = 1,4-Dichlorobenzene-d4IS 5 = Tert Butyl Alcohol-D9

(a) Upper Limit = +100% of check standard area; Retention time +0.5 minutes.(b) Lower Limit = -50% of check standard area; Retention time -0.5 minutes.

296 of 397

MC48470

66.4.4

Page 329: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Volatile Surrogate Recovery Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Method: SW846 8260C Matrix: AQ

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 S2 S3

MC48470-14 N105976.D 99 101 97MC48470-15 N105979.D 99 102 97MC48470-16 N105980.D 99 100 95MC48470-17 N105981.D 98 100 93MC48470-19 N105977.D 99 101 94MSN3894-BS N105969.D 98 102 95MSN3894-BSD N105970.D 95 101 96MSN3894-MB N105972.D 98 101 95

Surrogate RecoveryCompounds Limits

S1 = Dibromofluoromethane 76-129%S2 = Toluene-D8 83-114%S3 = 4-Bromofluorobenzene 75-124%

297 of 397

MC48470

66.5.1

Page 330: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Volatile Surrogate Recovery Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Method: SW846 8260C Matrix: SO

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 S2 S3

MC48470-1 M81616.D 149* a 106 113MC48470-2 M81600.D 117 103 99MC48470-3 M81601.D 122 104 96MC48470-4 M81641.D 142* b 108 107MC48470-4 M81617.D 147* b 110 104MC48470-5 M81642.D 146* a 105 97MC48470-5 M81618.D 153* a 109 117MC48470-6 M81619.D 152* a 110 96MC48470-7 M81643.D 150* a 107 96MC48470-7 M81620.D 157* a 111 95MC48470-8 M81644.D 158* a 109 92MC48470-8 M81621.D 166* a 111 94MC48470-9 M81622.D 159* a 112 93MC48470-10 M81645.D 176* a 109 104MC48470-10 M81623.D 156* a 108 110MC48470-11 M81624.D 160* a 110 97MC48470-12 M81646.D 166* a 109 91MC48470-12 M81625.D 176* a 113 94MC48470-13 M81647.D 163* a 108 118MC48470-13 M81626.D 165* a 110 121MSM2925-BS M81578.D 113 102 96MSM2925-MB M81580.D 140 104 97MSM2926-BS M81609.D 107 102 94MSM2926-MB M81611.D 138 104 96MSM2927-BS M81638.D 114 103 94MSM2927-MB M81640.D 143* a 105 97

Surrogate RecoveryCompounds Limits

S1 = Dibromofluoromethane 65-141%S2 = Toluene-D8 65-129%S3 = 4-Bromofluorobenzene 63-137%

(a) Outside control limits. Associated target analytes are non-detect.(b) Outside control limits due to possible matrix interference. Confirmed by reanalysis.

298 of 397

MC48470

66.5.2

Page 331: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

GC/MS Semi-volatiles

QC Data Summaries

Includes the following where applicable:

• Method Blank Summaries• Blank Spike Summaries• Matrix Spike and Duplicate Summaries• Internal Standard Area Summaries• Surrogate Recovery Summaries

New EnglandSection 7

299 of 397

MC48470

7

Page 332: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49038-MB R50330.D 1 11/01/16 MR 10/28/16 OP49038 MSR1872

The QC reported here applies to the following samples: Method: SW846 8270D

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 240 ug/kg59-50-7 4-Chloro-3-methyl phenol ND 480 ug/kg120-83-2 2,4-Dichlorophenol ND 480 ug/kg105-67-9 2,4-Dimethylphenol ND 480 ug/kg51-28-5 2,4-Dinitrophenol ND 480 ug/kg534-52-1 4,6-Dinitro-o-cresol ND 480 ug/kg95-48-7 2-Methylphenol ND 480 ug/kg106-44-5 4-Methylphenol ND 480 ug/kg88-75-5 2-Nitrophenol ND 480 ug/kg100-02-7 4-Nitrophenol ND 480 ug/kg87-86-5 Pentachlorophenol ND 480 ug/kg108-95-2 Phenol ND 240 ug/kg95-95-4 2,4,5-Trichlorophenol ND 480 ug/kg88-06-2 2,4,6-Trichlorophenol ND 480 ug/kg83-32-9 Acenaphthene ND 96 ug/kg208-96-8 Acenaphthylene ND 96 ug/kg62-53-3 Aniline ND 480 ug/kg120-12-7 Anthracene ND 96 ug/kg56-55-3 Benzo(a)anthracene ND 96 ug/kg50-32-8 Benzo(a)pyrene ND 240 ug/kg205-99-2 Benzo(b)fluoranthene ND 96 ug/kg191-24-2 Benzo(g,h,i)perylene ND 96 ug/kg207-08-9 Benzo(k)fluoranthene ND 96 ug/kg101-55-3 4-Bromophenyl phenyl ether ND 240 ug/kg85-68-7 Butyl benzyl phthalate ND 240 ug/kg91-58-7 2-Chloronaphthalene ND 240 ug/kg106-47-8 4-Chloroaniline ND 480 ug/kg86-74-8 Carbazole ND 96 ug/kg218-01-9 Chrysene ND 96 ug/kg111-91-1 bis(2-Chloroethoxy)methane ND 240 ug/kg111-44-4 bis(2-Chloroethyl)ether ND 240 ug/kg108-60-1 bis(2-Chloroisopropyl)ether ND 240 ug/kg7005-72-3 4-Chlorophenyl phenyl ether ND 240 ug/kg121-14-2 2,4-Dinitrotoluene ND 480 ug/kg606-20-2 2,6-Dinitrotoluene ND 480 ug/kg91-94-1 3,3'-Dichlorobenzidine ND 480 ug/kg

300 of 397

MC48470

77.1.1

Page 333: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 2 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49038-MB R50330.D 1 11/01/16 MR 10/28/16 OP49038 MSR1872

The QC reported here applies to the following samples: Method: SW846 8270D

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

CAS No. Compound Result RL Units Q

53-70-3 Dibenzo(a,h)anthracene ND 96 ug/kg132-64-9 Dibenzofuran ND 96 ug/kg84-74-2 Di-n-butyl phthalate ND 240 ug/kg117-84-0 Di-n-octyl phthalate ND 240 ug/kg84-66-2 Diethyl phthalate ND 240 ug/kg131-11-3 Dimethyl phthalate ND 240 ug/kg117-81-7 bis(2-Ethylhexyl)phthalate ND 240 ug/kg206-44-0 Fluoranthene ND 96 ug/kg86-73-7 Fluorene ND 96 ug/kg118-74-1 Hexachlorobenzene ND 240 ug/kg87-68-3 Hexachlorobutadiene ND 240 ug/kg77-47-4 Hexachlorocyclopentadiene ND 480 ug/kg67-72-1 Hexachloroethane ND 240 ug/kg193-39-5 Indeno(1,2,3-cd)pyrene ND 240 ug/kg78-59-1 Isophorone ND 240 ug/kg91-57-6 2-Methylnaphthalene ND 96 ug/kg88-74-4 2-Nitroaniline ND 480 ug/kg99-09-2 3-Nitroaniline ND 480 ug/kg100-01-6 4-Nitroaniline ND 480 ug/kg91-20-3 Naphthalene ND 96 ug/kg98-95-3 Nitrobenzene ND 240 ug/kg621-64-7 N-Nitroso-di-n-propylamine ND 240 ug/kg86-30-6 N-Nitrosodiphenylamine ND 240 ug/kg82-68-8 Pentachloronitrobenzene ND 480 ug/kg85-01-8 Phenanthrene ND 96 ug/kg129-00-0 Pyrene ND 96 ug/kg110-86-1 Pyridine ND 480 ug/kg95-94-3 1,2,4,5-Tetrachlorobenzene ND 480 ug/kg120-82-1 1,2,4-Trichlorobenzene ND 240 ug/kg

CAS No. Surrogate Recoveries Limits

367-12-4 2-Fluorophenol 67% 25-109%4165-62-2 Phenol-d5 68% 29-113%118-79-6 2,4,6-Tribromophenol 80% 20-141%

301 of 397

MC48470

77.1.1

Page 334: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 3 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49038-MB R50330.D 1 11/01/16 MR 10/28/16 OP49038 MSR1872

The QC reported here applies to the following samples: Method: SW846 8270D

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

CAS No. Surrogate Recoveries Limits

4165-60-0 Nitrobenzene-d5 65% 27-115%321-60-8 2-Fluorobiphenyl 73% 34-118%1718-51-0 Terphenyl-d14 91% 42-139%

302 of 397

MC48470

77.1.1

Page 335: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 2 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49052-MB W30649.D 1 11/02/16 MR 11/01/16 OP49052 MSW1243

The QC reported here applies to the following samples: Method: SW846 8270D

MC48470-15, MC48470-16, MC48470-17, MC48470-19

CAS No. Compound Result RL Units Q

95-57-8 2-Chlorophenol ND 5.0 ug/l59-50-7 4-Chloro-3-methyl phenol ND 10 ug/l120-83-2 2,4-Dichlorophenol ND 10 ug/l105-67-9 2,4-Dimethylphenol ND 10 ug/l51-28-5 2,4-Dinitrophenol ND 20 ug/l534-52-1 4,6-Dinitro-o-cresol ND 10 ug/l95-48-7 2-Methylphenol ND 10 ug/l106-44-5 4-Methylphenol ND 10 ug/l88-75-5 2-Nitrophenol ND 10 ug/l100-02-7 4-Nitrophenol ND 20 ug/l87-86-5 Pentachlorophenol ND 10 ug/l108-95-2 Phenol ND 5.0 ug/l95-95-4 2,4,5-Trichlorophenol ND 10 ug/l88-06-2 2,4,6-Trichlorophenol ND 10 ug/l62-53-3 Aniline ND 10 ug/l101-55-3 4-Bromophenyl phenyl ether ND 5.0 ug/l85-68-7 Butyl benzyl phthalate ND 5.0 ug/l91-58-7 2-Chloronaphthalene ND 5.0 ug/l106-47-8 4-Chloroaniline ND 10 ug/l86-74-8 Carbazole ND 2.0 ug/l111-91-1 bis(2-Chloroethoxy)methane ND 5.0 ug/l111-44-4 bis(2-Chloroethyl)ether ND 5.0 ug/l108-60-1 bis(2-Chloroisopropyl)ether ND 5.0 ug/l7005-72-3 4-Chlorophenyl phenyl ether ND 5.0 ug/l121-14-2 2,4-Dinitrotoluene ND 10 ug/l606-20-2 2,6-Dinitrotoluene ND 10 ug/l91-94-1 3,3'-Dichlorobenzidine ND 5.0 ug/l132-64-9 Dibenzofuran ND 2.0 ug/l84-74-2 Di-n-butyl phthalate ND 5.0 ug/l117-84-0 Di-n-octyl phthalate ND 5.0 ug/l84-66-2 Diethyl phthalate ND 5.0 ug/l131-11-3 Dimethyl phthalate ND 5.0 ug/l117-81-7 bis(2-Ethylhexyl)phthalate ND 2.0 ug/l118-74-1 Hexachlorobenzene ND 5.0 ug/l87-68-3 Hexachlorobutadiene ND 5.0 ug/l77-47-4 Hexachlorocyclopentadiene ND 10 ug/l

303 of 397

MC48470

77.1.2

Page 336: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 2 of 2 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49052-MB W30649.D 1 11/02/16 MR 11/01/16 OP49052 MSW1243

The QC reported here applies to the following samples: Method: SW846 8270D

MC48470-15, MC48470-16, MC48470-17, MC48470-19

CAS No. Compound Result RL Units Q

67-72-1 Hexachloroethane ND 5.0 ug/l78-59-1 Isophorone ND 5.0 ug/l91-57-6 2-Methylnaphthalene ND 2.0 ug/l88-74-4 2-Nitroaniline ND 10 ug/l99-09-2 3-Nitroaniline ND 10 ug/l100-01-6 4-Nitroaniline ND 10 ug/l98-95-3 Nitrobenzene ND 5.0 ug/l621-64-7 N-Nitroso-di-n-propylamine ND 5.0 ug/l86-30-6 N-Nitrosodiphenylamine ND 10 ug/l82-68-8 Pentachloronitrobenzene ND 10 ug/l110-86-1 Pyridine ND 10 ug/l95-94-3 1,2,4,5-Tetrachlorobenzene ND 10 ug/l120-82-1 1,2,4-Trichlorobenzene ND 5.0 ug/l

CAS No. Surrogate Recoveries Limits

367-12-4 2-Fluorophenol 37% 10-80%4165-62-2 Phenol-d5 24% 10-72%118-79-6 2,4,6-Tribromophenol 65% 42-134%4165-60-0 Nitrobenzene-d5 53% 25-117%321-60-8 2-Fluorobiphenyl 52% 24-112%1718-51-0 Terphenyl-d14 79% 48-133%

304 of 397

MC48470

77.1.2

Page 337: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49053-MB I103519.D 1 11/01/16 AA 11/01/16 OP49053 MSI3922

The QC reported here applies to the following samples: Method: SW846 8270D BY SIM

MC48470-15, MC48470-16, MC48470-17, MC48470-19

CAS No. Compound Result RL Units Q

83-32-9 Acenaphthene ND 0.10 ug/l208-96-8 Acenaphthylene ND 0.10 ug/l120-12-7 Anthracene ND 0.10 ug/l56-55-3 Benzo(a)anthracene ND 0.050 ug/l50-32-8 Benzo(a)pyrene ND 0.10 ug/l205-99-2 Benzo(b)fluoranthene ND 0.050 ug/l191-24-2 Benzo(g,h,i)perylene ND 0.10 ug/l207-08-9 Benzo(k)fluoranthene ND 0.10 ug/l218-01-9 Chrysene ND 0.10 ug/l53-70-3 Dibenzo(a,h)anthracene ND 0.10 ug/l206-44-0 Fluoranthene ND 0.10 ug/l86-73-7 Fluorene ND 0.10 ug/l193-39-5 Indeno(1,2,3-cd)pyrene ND 0.10 ug/l91-57-6 2-Methylnaphthalene ND 2.0 ug/l91-20-3 Naphthalene ND 2.0 ug/l85-01-8 Phenanthrene ND 0.050 ug/l129-00-0 Pyrene ND 0.10 ug/l

CAS No. Surrogate Recoveries Limits

4165-60-0 Nitrobenzene-d5 88% 26-121%321-60-8 2-Fluorobiphenyl 77% 28-107%1718-51-0 Terphenyl-d14 119% 29-129%

305 of 397

MC48470

77.1.3

Page 338: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 1 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49038-BS R50331.D 1 11/01/16 MR 10/28/16 OP49038 MSR1872

The QC reported here applies to the following samples: Method: SW846 8270D

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

Spike BSP BSPCAS No. Compound ug/kg ug/kg % Limits

95-57-8 2-Chlorophenol 2400 1670 69 39-10459-50-7 4-Chloro-3-methyl phenol 2400 1870 78 51-110120-83-2 2,4-Dichlorophenol 2400 1870 78 47-109105-67-9 2,4-Dimethylphenol 2400 1780 74 43-10551-28-5 2,4-Dinitrophenol 2400 744 31 10-130534-52-1 4,6-Dinitro-o-cresol 2400 1520 63 16-14095-48-7 2-Methylphenol 2400 1690 70 40-105106-44-5 4-Methylphenol 4810 3570 74 38-11488-75-5 2-Nitrophenol 2400 1800 75 41-112100-02-7 4-Nitrophenol 2400 2150 89 28-13487-86-5 Pentachlorophenol 2400 1790 74 22-123108-95-2 Phenol 2400 1790 74 40-10795-95-4 2,4,5-Trichlorophenol 2400 2000 83 54-11588-06-2 2,4,6-Trichlorophenol 2400 1870 78 51-11083-32-9 Acenaphthene 2400 1750 73 49-108208-96-8 Acenaphthylene 2400 1580 66 37-10262-53-3 Aniline 2400 798 33 10-90120-12-7 Anthracene 2400 1770 74 54-11156-55-3 Benzo(a)anthracene 2400 1770 74 56-11750-32-8 Benzo(a)pyrene 2400 1800 75 57-117205-99-2 Benzo(b)fluoranthene 2400 1830 76 55-122191-24-2 Benzo(g,h,i)perylene 2400 2040 85 52-123207-08-9 Benzo(k)fluoranthene 2400 1800 75 54-117101-55-3 4-Bromophenyl phenyl ether 2400 2090 87 54-11885-68-7 Butyl benzyl phthalate 2400 2050 85 54-12191-58-7 2-Chloronaphthalene 2400 1780 74 46-114106-47-8 4-Chloroaniline 2400 775 32 12-8886-74-8 Carbazole 2400 1810 75 56-116218-01-9 Chrysene 2400 1770 74 56-114111-91-1 bis(2-Chloroethoxy)methane 2400 1580 66 41-106111-44-4 bis(2-Chloroethyl)ether 2400 1670 69 28-113108-60-1 bis(2-Chloroisopropyl)ether 2400 1770 74 30-1327005-72-3 4-Chlorophenyl phenyl ether 2400 2060 86 54-114121-14-2 2,4-Dinitrotoluene 2400 1960 82 50-121606-20-2 2,6-Dinitrotoluene 2400 1870 78 52-11591-94-1 3,3'-Dichlorobenzidine 2400 972 40 17-120

* = Outside of Control Limits.

306 of 397

MC48470

77.2.1

Page 339: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 2 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49038-BS R50331.D 1 11/01/16 MR 10/28/16 OP49038 MSR1872

The QC reported here applies to the following samples: Method: SW846 8270D

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

Spike BSP BSPCAS No. Compound ug/kg ug/kg % Limits

53-70-3 Dibenzo(a,h)anthracene 2400 2030 84 54-121132-64-9 Dibenzofuran 2400 1780 74 52-10984-74-2 Di-n-butyl phthalate 2400 2110 88 55-113117-84-0 Di-n-octyl phthalate 2400 2010 84 53-12684-66-2 Diethyl phthalate 2400 2050 85 54-111131-11-3 Dimethyl phthalate 2400 1990 83 53-111117-81-7 bis(2-Ethylhexyl)phthalate 2400 2060 86 55-125206-44-0 Fluoranthene 2400 1900 79 55-11686-73-7 Fluorene 2400 1920 80 52-111118-74-1 Hexachlorobenzene 2400 1940 81 52-11787-68-3 Hexachlorobutadiene 2400 1680 70 36-10877-47-4 Hexachlorocyclopentadiene 2400 1550 64 10-9967-72-1 Hexachloroethane 2400 1490 62 33-100193-39-5 Indeno(1,2,3-cd)pyrene 2400 1930 80 55-12078-59-1 Isophorone 2400 1660 69 37-10191-57-6 2-Methylnaphthalene 2400 1790 74 38-11488-74-4 2-Nitroaniline 2400 1730 72 55-12099-09-2 3-Nitroaniline 2400 1150 48 31-103100-01-6 4-Nitroaniline 2400 1540 64 50-11291-20-3 Naphthalene 2400 2480 103 27-12898-95-3 Nitrobenzene 2400 1640 68 33-108621-64-7 N-Nitroso-di-n-propylamine 2400 1770 74 37-11286-30-6 N-Nitrosodiphenylamine 2400 1710 71 47-11482-68-8 Pentachloronitrobenzene 2400 1980 82 50-12585-01-8 Phenanthrene 2400 1850 77 54-112129-00-0 Pyrene 2400 1850 77 54-118110-86-1 Pyridine 2400 1040 43 23-8195-94-3 1,2,4,5-Tetrachlorobenzene 2400 1710 71 43-113120-82-1 1,2,4-Trichlorobenzene 2400 1780 74 38-105

CAS No. Surrogate Recoveries BSP Limits

367-12-4 2-Fluorophenol 66% 25-109%4165-62-2 Phenol-d5 68% 29-113%118-79-6 2,4,6-Tribromophenol 83% 20-141%

* = Outside of Control Limits.

307 of 397

MC48470

77.2.1

Page 340: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 3 of 3 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49038-BS R50331.D 1 11/01/16 MR 10/28/16 OP49038 MSR1872

The QC reported here applies to the following samples: Method: SW846 8270D

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

CAS No. Surrogate Recoveries BSP Limits

4165-60-0 Nitrobenzene-d5 66% 27-115%321-60-8 2-Fluorobiphenyl 74% 34-118%1718-51-0 Terphenyl-d14 78% 42-139%

* = Outside of Control Limits.

308 of 397

MC48470

77.2.1

Page 341: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike/Blank Spike Duplicate Summary Page 1 of 2 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49052-BS W30650.D 1 11/02/16 MR 11/01/16 OP49052 MSW1243OP49052-BSD W30651.D 1 11/02/16 MR 11/01/16 OP49052 MSW1243

The QC reported here applies to the following samples: Method: SW846 8270D

MC48470-15, MC48470-16, MC48470-17, MC48470-19

Spike BSP BSP BSD BSD LimitsCAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD

95-57-8 2-Chlorophenol 50 33.7 67 34.1 68 1 39-100/2059-50-7 4-Chloro-3-methyl phenol 50 34.6 69 36.0 72 4 43-112/20120-83-2 2,4-Dichlorophenol 50 34.7 69 35.0 70 1 44-113/20105-67-9 2,4-Dimethylphenol 50 31.0 62 31.2 62 1 21-108/2051-28-5 2,4-Dinitrophenol 50 24.7 49 28.8 58 15 22-128/20534-52-1 4,6-Dinitro-o-cresol 50 28.9 58 32.2 64 11 42-132/2095-48-7 2-Methylphenol 50 30.0 60 32.1 64 7 34-91/20106-44-5 4-Methylphenol 100 56.0 56 59.4 59 6 31-90/2088-75-5 2-Nitrophenol 50 33.6 67 34.5 69 3 40-118/20100-02-7 4-Nitrophenol 50 17.7 35 19.5 39 10 10-71/2087-86-5 Pentachlorophenol 50 32.8 66 34.1 68 4 33-123/20108-95-2 Phenol 50 16.3 33 17.4 35 7 11-57/2095-95-4 2,4,5-Trichlorophenol 50 37.8 76 39.7 79 5 50-122/2088-06-2 2,4,6-Trichlorophenol 50 37.4 75 38.9 78 4 48-118/2062-53-3 Aniline 50 26.8 54 27.8 56 4 18-90/20101-55-3 4-Bromophenyl phenyl ether 50 40.4 81 42.2 84 4 55-126/2085-68-7 Butyl benzyl phthalate 50 42.8 86 45.7 91 7 56-124/2091-58-7 2-Chloronaphthalene 50 34.4 69 35.9 72 4 45-123/20106-47-8 4-Chloroaniline 50 35.9 72 36.7 73 2 35-111/2086-74-8 Carbazole 50 35.8 72 38.0 76 6 60-121/20111-91-1 bis(2-Chloroethoxy)methane 50 31.9 64 33.2 66 4 41-117/20111-44-4 bis(2-Chloroethyl)ether 50 34.2 68 35.8 72 5 31-114/20108-60-1 bis(2-Chloroisopropyl)ether 50 33.9 68 35.5 71 5 33-135/207005-72-3 4-Chlorophenyl phenyl ether 50 38.3 77 41.0 82 7 52-124/20121-14-2 2,4-Dinitrotoluene 50 37.9 76 42.0 84 10 52-128/20606-20-2 2,6-Dinitrotoluene 50 36.3 73 38.7 77 6 50-126/2091-94-1 3,3'-Dichlorobenzidine 50 39.2 78 41.0 82 4 46-134/20132-64-9 Dibenzofuran 50 33.3 67 35.4 71 6 51-118/2084-74-2 Di-n-butyl phthalate 50 40.2 80 42.6 85 6 57-120/20117-84-0 Di-n-octyl phthalate 50 40.1 80 41.8 84 4 58-125/2084-66-2 Diethyl phthalate 50 39.3 79 42.7 85 8 40-125/20131-11-3 Dimethyl phthalate 50 39.4 79 42.1 84 7 10-145/20117-81-7 bis(2-Ethylhexyl)phthalate 50 40.2 80 42.2 84 5 60-126/20118-74-1 Hexachlorobenzene 50 37.0 74 38.4 77 4 53-127/2087-68-3 Hexachlorobutadiene 50 28.8 58 28.2 56 2 17-110/2077-47-4 Hexachlorocyclopentadiene 50 14.6 29 15.8 32 8 10-75/20

* = Outside of Control Limits.

309 of 397

MC48470

77.3.1

Page 342: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike/Blank Spike Duplicate Summary Page 2 of 2 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49052-BS W30650.D 1 11/02/16 MR 11/01/16 OP49052 MSW1243OP49052-BSD W30651.D 1 11/02/16 MR 11/01/16 OP49052 MSW1243

The QC reported here applies to the following samples: Method: SW846 8270D

MC48470-15, MC48470-16, MC48470-17, MC48470-19

Spike BSP BSP BSD BSD LimitsCAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD

67-72-1 Hexachloroethane 50 25.9 52 24.9 50 4 15-98/2078-59-1 Isophorone 50 33.4 67 34.6 69 4 36-106/2091-57-6 2-Methylnaphthalene 50 31.7 63 32.8 66 3 41-112/2088-74-4 2-Nitroaniline 50 36.4 73 38.5 77 6 52-130/2099-09-2 3-Nitroaniline 50 38.1 76 41.1 82 8 47-120/20100-01-6 4-Nitroaniline 50 35.3 71 39.4 79 11 51-121/2098-95-3 Nitrobenzene 50 32.0 64 32.7 65 2 27-120/20621-64-7 N-Nitroso-di-n-propylamine 50 35.1 70 36.5 73 4 37-123/2086-30-6 N-Nitrosodiphenylamine 50 34.4 69 36.3 73 5 50-112/2082-68-8 Pentachloronitrobenzene 50 35.1 70 37.5 75 7 54-129/20110-86-1 Pyridine 50 9.8 20 9.7 19 1 10-72/2095-94-3 1,2,4,5-Tetrachlorobenzene 50 32.0 64 33.3 67 4 39-119/20120-82-1 1,2,4-Trichlorobenzene 50 33.0 66 32.7 65 1 27-107/20

CAS No. Surrogate Recoveries BSP BSD Limits

367-12-4 2-Fluorophenol 44% 48% 10-80%4165-62-2 Phenol-d5 30% 32% 10-72%118-79-6 2,4,6-Tribromophenol 80% 82% 42-134%4165-60-0 Nitrobenzene-d5 66% 67% 25-117%321-60-8 2-Fluorobiphenyl 65% 63% 24-112%1718-51-0 Terphenyl-d14 80% 81% 48-133%

* = Outside of Control Limits.

310 of 397

MC48470

77.3.1

Page 343: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike/Blank Spike Duplicate Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49053-BS I103520.D 1 11/01/16 AA 11/01/16 OP49053 MSI3922OP49053-BSD I103521.D 1 11/01/16 AA 11/01/16 OP49053 MSI3922

The QC reported here applies to the following samples: Method: SW846 8270D BY SIM

MC48470-15, MC48470-16, MC48470-17, MC48470-19

Spike BSP BSP BSD BSD LimitsCAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD

83-32-9 Acenaphthene 50 40.2 80 39.6 79 2 45-116/30208-96-8 Acenaphthylene 50 39.3 79 38.7 77 2 34-110/30120-12-7 Anthracene 50 43.9 88 43.7 87 0 50-117/3056-55-3 Benzo(a)anthracene 50 46.8 94 47.2 94 1 55-139/3050-32-8 Benzo(a)pyrene 50 46.1 92 46.2 92 0 48-131/30205-99-2 Benzo(b)fluoranthene 50 46.8 94 47.0 94 0 49-141/30191-24-2 Benzo(g,h,i)perylene 50 52.4 105 52.0 104 1 60-130/30207-08-9 Benzo(k)fluoranthene 50 49.1 98 49.1 98 0 49-133/30218-01-9 Chrysene 50 42.4 85 43.0 86 1 52-128/3053-70-3 Dibenzo(a,h)anthracene 50 49.9 100 49.6 99 1 60-136/30206-44-0 Fluoranthene 50 43.9 88 44.4 89 1 46-132/3086-73-7 Fluorene 50 41.3 83 41.3 83 0 53-120/30193-39-5 Indeno(1,2,3-cd)pyrene 50 48.1 96 48.3 97 0 57-134/3091-57-6 2-Methylnaphthalene 50 39.3 79 38.5 77 2 36-111/3091-20-3 Naphthalene 50 40.2 80 38.6 77 4 32-116/3085-01-8 Phenanthrene 50 41.8 84 41.6 83 0 50-120/30129-00-0 Pyrene 50 43.8 88 43.9 88 0 48-127/30

CAS No. Surrogate Recoveries BSP BSD Limits

4165-60-0 Nitrobenzene-d5 92% 89% 26-121%321-60-8 2-Fluorobiphenyl 78% 72% 28-107%1718-51-0 Terphenyl-d14 89% 88% 29-129%

* = Outside of Control Limits.

311 of 397

MC48470

77.3.2

Page 344: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Internal Standard Area Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Check Std: MSI3922-CC3916 Injection Date: 11/01/16Lab File ID: I103518.D Injection Time: 17:33 Instrument ID: GCMSI Method: SW846 8270D BY SIM

IS 1 IS 2 IS 3 IS 4 IS 5 IS 6AREA RT AREA RT AREA RT AREA RT AREA RT AREA RT

Check Std 42932 4.25 126763 5.30 99872 6.82 116989 8.12 99665 11.21 157598 14.50Upper Limit a 85864 4.75 253526 5.80 199744 7.32 233978 8.62 199330 11.71 315196 15.00Lower Limit b 21466 3.75 63382 4.80 49936 6.32 58495 7.62 49833 10.71 78799 14.00

Lab IS 1 IS 2 IS 3 IS 4 IS 5 IS 6Sample ID AREA RT AREA RT AREA RT AREA RT AREA RT AREA RT

OP49053-MB 35175 4.25 102156 5.30 78375 6.83 92606 8.12 73917 11.21 118029 14.50OP49053-BS 40312 4.25 117380 5.30 89792 6.83 103418 8.13 92625 11.22 151872 14.51OP49053-BSD 40161 4.25 118426 5.30 91602 6.83 107380 8.13 95359 11.22 157996 14.50MC48470-15 41128 4.25 119022 5.30 92229 6.82 107978 8.12 86857 11.21 142182 14.50MC48470-16 42769 4.25 124633 5.30 97362 6.83 112886 8.12 94557 11.21 158774 14.50MC48470-17 40082 4.25 117321 5.30 91449 6.82 108234 8.12 90445 11.21 155675 14.50MC48470-19 43245 4.25 125297 5.30 97161 6.82 113553 8.12 90547 11.21 149176 14.50ZZZZZZ 44181 4.25 128647 5.30 99736 6.82 115979 8.12 95779 11.21 162148 14.50ZZZZZZ 45708 4.25 132030 5.30 101284 6.82 116509 8.12 94053 11.21 154093 14.50ZZZZZZ 43937 4.25 128239 5.30 103294 6.82 118972 8.12 97402 11.22 169065 14.51

IS 1 = 1,4-Dichlorobenzene-d4IS 2 = Naphthalene-d8IS 3 = Acenaphthene-D10IS 4 = Phenanthrene-d10IS 5 = Chrysene-d12IS 6 = Perylene-d12

(a) Upper Limit = +100% of check standard area; Retention time +0.5 minutes.(b) Lower Limit = -50% of check standard area; Retention time -0.5 minutes.

312 of 397

MC48470

77.4.1

Page 345: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Internal Standard Area Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Check Std: MSR1872-CC1866 Injection Date: 11/01/16Lab File ID: R50326.D Injection Time: 10:49 Instrument ID: GCMSR Method: SW846 8270D

IS 1 IS 2 IS 3 IS 4 IS 5 IS 6AREA RT AREA RT AREA RT AREA RT AREA RT AREA RT

Check Std 169286 4.22 610109 5.27 386682 6.80 686126 8.09 699411 11.11 631629 14.38Upper Limit a 338572 4.72 1220218 5.77 773364 7.30 1372252 8.59 1398822 11.61 1263258 14.88Lower Limit b 84643 3.72 305055 4.77 193341 6.30 343063 7.59 349706 10.61 315815 13.88

Lab IS 1 IS 2 IS 3 IS 4 IS 5 IS 6Sample ID AREA RT AREA RT AREA RT AREA RT AREA RT AREA RT

ZZZZZZ 161803 4.21 576827 5.27 363320 6.80 647294 8.08 674228 11.09 642137 14.36OP49038-MB 175121 4.21 625004 5.27 395389 6.80 700724 8.08 724649 11.09 689396 14.36OP49038-BS 174641 4.21 617999 5.27 395489 6.80 699057 8.08 722665 11.09 678901 14.35OP48852-LB2 157474 4.21 559158 5.26 355395 6.79 633144 8.08 667571 11.08 637390 14.35OP48852-MB2 157474 4.21 559158 5.26 355395 6.79 633144 8.08 667571 11.08 637390 14.35OP48852-LB3 155850 4.21 561046 5.26 356866 6.79 634795 8.08 667302 11.08 635942 14.34OP48852-MB3 155850 4.21 561046 5.26 356866 6.79 634795 8.08 667302 11.08 635942 14.34OP48852-MB4 159807 4.21 582131 5.26 370849 6.79 662751 8.08 683010 11.08 650771 14.34OP48852-LB4 159807 4.21 582131 5.26 370849 6.79 662751 8.08 683010 11.08 650771 14.34OP48852-BS2 162491 4.21 583171 5.26 383501 6.79 668406 8.08 693907 11.08 643381 14.35ZZZZZZ 150790 4.21 552650 5.26 351754 6.79 640022 8.07 663507 11.08 637661 14.34OP48852-LS2 154423 4.21 566561 5.26 370883 6.79 652987 8.08 691765 11.08 646132 14.34ZZZZZZ 139896 4.21 515768 5.26 328684 6.79 584280 8.07 610467 11.08 581657 14.33

IS 1 = 1,4-Dichlorobenzene-d4IS 2 = Naphthalene-d8IS 3 = Acenaphthene-D10IS 4 = Phenanthrene-d10IS 5 = Chrysene-d12IS 6 = Perylene-d12

(a) Upper Limit = +100% of check standard area; Retention time +0.5 minutes.(b) Lower Limit = -50% of check standard area; Retention time -0.5 minutes.

313 of 397

MC48470

77.4.2

Page 346: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Internal Standard Area Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Check Std: MSW1243-CC1235 Injection Date: 11/01/16Lab File ID: W30634.D Injection Time: 18:01 Instrument ID: GCMSW Method: SW846 8270D

IS 1 IS 2 IS 3 IS 4 IS 5 IS 6AREA RT AREA RT AREA RT AREA RT AREA RT AREA RT

Check Std 79037 4.06 299326 5.12 205898 6.65 388350 7.94 435311 10.87 406209 14.09Upper Limit a 158074 4.56 598652 5.62 411796 7.15 776700 8.44 870622 11.37 812418 14.59Lower Limit b 39519 3.56 149663 4.62 102949 6.15 194175 7.44 217656 10.37 203105 13.59

Lab IS 1 IS 2 IS 3 IS 4 IS 5 IS 6Sample ID AREA RT AREA RT AREA RT AREA RT AREA RT AREA RT

MC48470-1 96740 4.06 352995 5.12 237947 6.65 435851 7.94 444409 10.87 383356 14.10MC48470-2 89205 4.06 324541 5.12 221952 6.65 416160 7.94 452365 10.87 406063 14.08MC48470-3 81162 4.06 297774 5.12 204236 6.65 385309 7.94 423563 10.86 380295 14.08MC48470-4 84116 4.06 304219 5.12 210700 6.65 398560 7.94 441387 10.86 395577 14.08MC48470-5 97288 4.06 357279 5.12 241085 6.65 443300 7.94 455854 10.87 390621 14.08MC48470-6 88754 4.06 324233 5.12 220553 6.65 412221 7.94 444547 10.86 388981 14.08MC48470-7 97144 4.06 357515 5.12 245763 6.65 459098 7.94 493779 10.86 427725 14.08MC48470-8 92493 4.06 336062 5.12 232776 6.65 429159 7.94 456910 10.86 395190 14.08MC48470-9 96334 4.06 345574 5.12 240496 6.65 444736 7.94 487636 10.86 422806 14.08MC48470-10 95193 4.06 346600 5.12 241513 6.65 442159 7.94 480198 10.86 412003 14.08MC48470-11 84910 4.06 312838 5.11 213424 6.65 401497 7.94 435322 10.86 381805 14.07MC48470-12 97275 4.06 358306 5.12 243324 6.65 452434 7.94 484959 10.86 419245 14.08MC48470-13 112346 4.06 406037 5.12 272555 6.65 481508 7.94 478572 10.88 418998 14.11OP49052-MB 103399 4.06 384728 5.12 264375 6.65 499862 7.94 544232 10.87 487233 14.09OP49052-BS 105427 4.06 393733 5.12 270465 6.65 498090 7.94 529726 10.87 469199 14.09OP49052-BSD 95091 4.06 359581 5.12 245209 6.65 468074 7.94 509361 10.87 459365 14.09MC48470-15 100900 4.06 373340 5.12 258610 6.65 487001 7.94 527497 10.86 475389 14.08MC48470-16 104860 4.06 389287 5.12 270615 6.65 507204 7.94 550910 10.86 497771 14.08MC48470-17 98216 4.06 362016 5.12 251813 6.65 473088 7.94 501724 10.86 451376 14.08MC48470-19 97076 4.06 359931 5.12 253443 6.65 464687 7.94 505710 10.86 453904 14.08ZZZZZZ 86633 4.06 324716 5.12 225224 6.65 426013 7.94 474239 10.86 420532 14.08ZZZZZZ 91509 4.06 341211 5.11 234580 6.65 444334 7.94 477813 10.86 430789 14.08ZZZZZZ 98411 4.06 363919 5.12 249722 6.65 472568 7.94 514752 10.86 465004 14.08

IS 1 = 1,4-Dichlorobenzene-d4IS 2 = Naphthalene-d8IS 3 = Acenaphthene-D10IS 4 = Phenanthrene-d10IS 5 = Chrysene-d12IS 6 = Perylene-d12

(a) Upper Limit = +100% of check standard area; Retention time +0.5 minutes.(b) Lower Limit = -50% of check standard area; Retention time -0.5 minutes.

314 of 397

MC48470

77.4.3

Page 347: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Internal Standard Area Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Check Std: MSW1244-CC1235 Injection Date: 11/02/16Lab File ID: W30668.D Injection Time: 09:29 Instrument ID: GCMSW Method: SW846 8270D

IS 1 IS 2 IS 3 IS 4 IS 5 IS 6AREA RT AREA RT AREA RT AREA RT AREA RT AREA RT

Check Std 82839 4.06 298944 5.12 207324 6.65 385633 7.94 430139 10.87 395091 14.08Upper Limit a 165678 4.56 597888 5.62 414648 7.15 771266 8.44 860278 11.37 790182 14.58Lower Limit b 41420 3.56 149472 4.62 103662 6.15 192817 7.44 215070 10.37 197546 13.58

Lab IS 1 IS 2 IS 3 IS 4 IS 5 IS 6Sample ID AREA RT AREA RT AREA RT AREA RT AREA RT AREA RT

MC48470-13 89682 4.06 325367 5.12 220871 6.65 399949 7.94 438518 10.87 402445 14.08ZZZZZZ 118112 4.06 436672 5.11 293595 6.65 522420 7.94 538112 10.88 482473 14.11ZZZZZZ 123050 4.06 439535 5.12 291653 6.65 515069 7.94 558909 10.89 476062 14.14ZZZZZZ 109366 4.06 399713 5.12 267537 6.65 467542 7.94 489628 10.89 423124 14.11

IS 1 = 1,4-Dichlorobenzene-d4IS 2 = Naphthalene-d8IS 3 = Acenaphthene-D10IS 4 = Phenanthrene-d10IS 5 = Chrysene-d12IS 6 = Perylene-d12

(a) Upper Limit = +100% of check standard area; Retention time +0.5 minutes.(b) Lower Limit = -50% of check standard area; Retention time -0.5 minutes.

315 of 397

MC48470

77.4.4

Page 348: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Surrogate Recovery Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Method: SW846 8270D Matrix: AQ

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 S2 S3 S4 S5 S6

MC48470-15 W30652.D 38 23 74 58 57 76MC48470-16 W30653.D 42 26 82 61 59 84MC48470-17 W30654.D 40 25 78 60 58 83MC48470-19 W30655.D 44 27 80 63 63 88OP49052-BS W30650.D 44 30 80 66 65 80OP49052-BSD W30651.D 48 32 82 67 63 81OP49052-MB W30649.D 37 24 65 53 52 79

Surrogate RecoveryCompounds Limits

S1 = 2-Fluorophenol 10-80%S2 = Phenol-d5 10-72%S3 = 2,4,6-Tribromophenol 42-134%S4 = Nitrobenzene-d5 25-117%S5 = 2-Fluorobiphenyl 24-112%S6 = Terphenyl-d14 48-133%

316 of 397

MC48470

77.5.1

Page 349: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Surrogate Recovery Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Method: SW846 8270D Matrix: SO

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 S2 S3 S4 S5 S6

MC48470-1 W30636.D 85 89 108 85 96 109MC48470-2 W30637.D 81 83 105 79 88 109MC48470-3 W30638.D 86 88 104 85 93 104MC48470-4 W30639.D 73 74 87 73 78 88MC48470-5 W30640.D 76 81 104 78 90 105MC48470-6 W30641.D 80 81 103 78 87 103MC48470-7 W30642.D 67 71 94 64 76 95MC48470-8 W30643.D 81 84 106 80 91 107MC48470-9 W30644.D 64 68 95 65 76 103MC48470-10 W30645.D 77 82 104 76 86 101MC48470-11 W30646.D 71 77 103 71 84 102MC48470-12 W30647.D 85 89 110 84 94 111MC48470-13 W30672.D 81 88 94 84 94 101MC48470-13 W30648.D 79 81 102 80 89 102OP49038-BS R50331.D 66 68 83 66 74 78OP49038-MB R50330.D 67 68 80 65 73 91

Surrogate RecoveryCompounds Limits

S1 = 2-Fluorophenol 25-109%S2 = Phenol-d5 29-113%S3 = 2,4,6-Tribromophenol 20-141%S4 = Nitrobenzene-d5 27-115%S5 = 2-Fluorobiphenyl 34-118%S6 = Terphenyl-d14 42-139%

317 of 397

MC48470

77.5.2

Page 350: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Surrogate Recovery Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Method: SW846 8270D BY SIM Matrix: AQ

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 S2 S3

MC48470-15 I103522.D 83 70 96MC48470-16 I103523.D 86 73 99MC48470-17 I103524.D 80 67 91MC48470-19 I103525.D 84 71 99OP49053-BS I103520.D 92 78 89OP49053-BSD I103521.D 89 72 88OP49053-MB I103519.D 88 77 119

Surrogate RecoveryCompounds Limits

S1 = Nitrobenzene-d5 26-121%S2 = 2-Fluorobiphenyl 28-107%S3 = Terphenyl-d14 29-129%

318 of 397

MC48470

77.5.3

Page 351: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

GC Semi-volatiles

QC Data Summaries

Includes the following where applicable:

• Method Blank Summaries• Blank Spike Summaries• Matrix Spike and Duplicate Summaries• DDT/Endrin Breakdown Checks• Surrogate Recovery Summaries

New EnglandSection 8

319 of 397

MC48470

8

Page 352: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49040-MB CF5216.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332

The QC reported here applies to the following samples: Method: CT-ETPH 7/06

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 16 mg/kg

CAS No. Surrogate Recoveries Limits

84-15-1 o-Terphenyl 70% 50-137%

320 of 397

MC48470

88.1.1

Page 353: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49058-MB CF5236.D 1 11/02/16 MD 11/01/16 OP49058 GCF1333

The QC reported here applies to the following samples: Method: CT-ETPH 7/06

MC48470-15, MC48470-16, MC48470-17, MC48470-19

CAS No. Compound Result RL Units Q

CT-ETPH (C9-C36) ND 0.10 mg/l

CAS No. Surrogate Recoveries Limits

84-15-1 o-Terphenyl 78% 50-149%

321 of 397

MC48470

88.1.2

Page 354: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49036-MB BE53024.D 1 11/01/16 TA 10/28/16 OP49036 GBE2666

The QC reported here applies to the following samples: Method: SW846 8081B

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 49 ug/kg309-00-2 Aldrin ND 4.9 ug/kg319-84-6 alpha-BHC ND 4.9 ug/kg319-85-7 beta-BHC ND 4.9 ug/kg319-86-8 delta-BHC ND 4.9 ug/kg58-89-9 gamma-BHC (Lindane) ND 4.9 ug/kg12789-03-6 Chlordane ND 49 ug/kg60-57-1 Dieldrin ND 4.9 ug/kg72-54-8 4,4'-DDD ND 4.9 ug/kg72-55-9 4,4'-DDE ND 4.9 ug/kg50-29-3 4,4'-DDT ND 4.9 ug/kg72-20-8 Endrin ND 4.9 ug/kg1031-07-8 Endosulfan sulfate ND 4.9 ug/kg7421-93-4 Endrin aldehyde ND 4.9 ug/kg959-98-8 Endosulfan-I ND 4.9 ug/kg33213-65-9 Endosulfan-II ND 4.9 ug/kg76-44-8 Heptachlor ND 4.9 ug/kg1024-57-3 Heptachlor epoxide ND 4.9 ug/kg72-43-5 Methoxychlor ND 4.9 ug/kg53494-70-5 Endrin ketone ND 4.9 ug/kg8001-35-2 Toxaphene ND 49 ug/kg

CAS No. Surrogate Recoveries Limits

877-09-8 Tetrachloro-m-xylene 71% 10-143%877-09-8 Tetrachloro-m-xylene 74% 10-143%2051-24-3 Decachlorobiphenyl 46% 10-172%2051-24-3 Decachlorobiphenyl 77% 10-172%

322 of 397

MC48470

88.1.3

Page 355: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49045-MB BE53030.D 1 11/01/16 TA 10/31/16 OP49045 GBE2666

The QC reported here applies to the following samples: Method: SW846 8081B

MC48470-15, MC48470-16, MC48470-17, MC48470-19

CAS No. Compound Result RL Units Q

15972-60-8 Alachlor ND 0.10 ug/l309-00-2 Aldrin ND 0.010 ug/l319-84-6 alpha-BHC ND 0.010 ug/l319-85-7 beta-BHC ND 0.010 ug/l319-86-8 delta-BHC ND 0.010 ug/l58-89-9 gamma-BHC (Lindane) ND 0.010 ug/l12789-03-6 Chlordane ND 0.10 ug/l60-57-1 Dieldrin ND 0.0020 ug/l72-54-8 4,4'-DDD ND 0.010 ug/l72-55-9 4,4'-DDE ND 0.010 ug/l50-29-3 4,4'-DDT ND 0.010 ug/l72-20-8 Endrin ND 0.010 ug/l1031-07-8 Endosulfan sulfate ND 0.010 ug/l7421-93-4 Endrin aldehyde ND 0.010 ug/l53494-70-5 Endrin ketone ND 0.010 ug/l959-98-8 Endosulfan-I ND 0.010 ug/l33213-65-9 Endosulfan-II ND 0.010 ug/l76-44-8 Heptachlor ND 0.010 ug/l1024-57-3 Heptachlor epoxide ND 0.010 ug/l72-43-5 Methoxychlor ND 0.010 ug/l8001-35-2 Toxaphene ND 0.50 ug/l

CAS No. Surrogate Recoveries Limits

877-09-8 Tetrachloro-m-xylene 60% 23-134%877-09-8 Tetrachloro-m-xylene 65% 23-134%2051-24-3 Decachlorobiphenyl 35% 10-127%2051-24-3 Decachlorobiphenyl 60% 10-127%

323 of 397

MC48470

88.1.4

Page 356: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49033-MB BB70174.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705

The QC reported here applies to the following samples: Method: SW846 8082A

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 25 ug/kg11104-28-2 Aroclor 1221 ND 25 ug/kg11141-16-5 Aroclor 1232 ND 25 ug/kg53469-21-9 Aroclor 1242 ND 25 ug/kg12672-29-6 Aroclor 1248 ND 25 ug/kg11097-69-1 Aroclor 1254 ND 25 ug/kg11096-82-5 Aroclor 1260 ND 25 ug/kg37324-23-5 Aroclor 1262 ND 25 ug/kg11100-14-4 Aroclor 1268 ND 25 ug/kg

CAS No. Surrogate Recoveries Limits

877-09-8 Tetrachloro-m-xylene 72% 25-145%877-09-8 Tetrachloro-m-xylene 75% 25-145%2051-24-3 Decachlorobiphenyl 70% 25-179%2051-24-3 Decachlorobiphenyl 72% 25-179%

324 of 397

MC48470

88.1.5

Page 357: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Method Blank Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49046-MB BK62769.D 1 11/02/16 TA 10/31/16 OP49046 GBK1977

The QC reported here applies to the following samples: Method: SW846 8082A

MC48470-15, MC48470-16, MC48470-17, MC48470-19

CAS No. Compound Result RL Units Q

12674-11-2 Aroclor 1016 ND 0.25 ug/l11104-28-2 Aroclor 1221 ND 0.25 ug/l11141-16-5 Aroclor 1232 ND 0.25 ug/l53469-21-9 Aroclor 1242 ND 0.25 ug/l12672-29-6 Aroclor 1248 ND 0.25 ug/l11097-69-1 Aroclor 1254 ND 0.25 ug/l11096-82-5 Aroclor 1260 ND 0.25 ug/l37324-23-5 Aroclor 1262 ND 0.25 ug/l11100-14-4 Aroclor 1268 ND 0.25 ug/l

CAS No. Surrogate Recoveries Limits

877-09-8 Tetrachloro-m-xylene 74% 15-139%877-09-8 Tetrachloro-m-xylene 75% 15-139%2051-24-3 Decachlorobiphenyl 72% 10-148%2051-24-3 Decachlorobiphenyl 74% 10-148%

325 of 397

MC48470

88.1.6

Page 358: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49040-BS CF5217.D 1 11/01/16 MD 10/28/16 OP49040 GCF1332

The QC reported here applies to the following samples: Method: CT-ETPH 7/06

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

Spike BSP BSPCAS No. Compound mg/kg mg/kg % Limits

CT-ETPH (C9-C36) 45.4 30.6 67 60-120

CAS No. Surrogate Recoveries BSP Limits

84-15-1 o-Terphenyl 61% 50-137%

* = Outside of Control Limits.

326 of 397

MC48470

88.2.1

Page 359: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49058-BS CF5237.D 1 11/02/16 MD 11/01/16 OP49058 GCF1333

The QC reported here applies to the following samples: Method: CT-ETPH 7/06

MC48470-15, MC48470-16, MC48470-17, MC48470-19

Spike BSP BSPCAS No. Compound mg/l mg/l % Limits

CT-ETPH (C9-C36) 0.7 0.756 108 60-120

CAS No. Surrogate Recoveries BSP Limits

84-15-1 o-Terphenyl 89% 50-149%

* = Outside of Control Limits.

327 of 397

MC48470

88.2.2

Page 360: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49036-BS BE53025.D 1 11/01/16 TA 10/28/16 OP49036 GBE2666

The QC reported here applies to the following samples: Method: SW846 8081B

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

Spike BSP BSPCAS No. Compound ug/kg ug/kg % Limits

15972-60-8 Alachlor 315 299 95 40-164309-00-2 Aldrin 31.5 25.9 82 37-165319-84-6 alpha-BHC 31.5 24.1 76 32-157319-85-7 beta-BHC 31.5 26.3 83 41-159319-86-8 delta-BHC 31.5 16.7 53 26-15758-89-9 gamma-BHC (Lindane) 31.5 24.7 78 34-15660-57-1 Dieldrin 31.5 29.3 93 42-17172-54-8 4,4'-DDD 31.5 29.1 92 41-16872-55-9 4,4'-DDE 31.5 27.5 87 42-16750-29-3 4,4'-DDT 31.5 17.8 56 37-17272-20-8 Endrin 31.5 22.7 72 30-1911031-07-8 Endosulfan sulfate 31.5 27.5 87 41-1627421-93-4 Endrin aldehyde 31.5 28.5 90 32-161959-98-8 Endosulfan-I 31.5 29.4 93 42-16833213-65-9 Endosulfan-II 31.5 29.1 92 41-16676-44-8 Heptachlor 31.5 23.5 74 43-1591024-57-3 Heptachlor epoxide 31.5 28.3 90 42-16772-43-5 Methoxychlor 31.5 17.3 55 28-18753494-70-5 Endrin ketone 31.5 29.8 94 32-170

CAS No. Surrogate Recoveries BSP Limits

877-09-8 Tetrachloro-m-xylene 76% 10-143%877-09-8 Tetrachloro-m-xylene 78% 10-143%2051-24-3 Decachlorobiphenyl 76% 10-172%2051-24-3 Decachlorobiphenyl 85% 10-172%

* = Outside of Control Limits.

328 of 397

MC48470

88.2.3

Page 361: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49045-BS BE53031.D 1 11/01/16 TA 10/31/16 OP49045 GBE2666

The QC reported here applies to the following samples: Method: SW846 8081B

MC48470-15, MC48470-16, MC48470-17, MC48470-19

Spike BSP BSPCAS No. Compound ug/l ug/l % Limits

15972-60-8 Alachlor 1 0.80 80 33-181309-00-2 Aldrin 0.1 0.061 61 21-166319-84-6 alpha-BHC 0.1 0.065 65 24-175319-85-7 beta-BHC 0.1 0.081 81 27-179319-86-8 delta-BHC 0.1 0.049 49 12-17658-89-9 gamma-BHC (Lindane) 0.1 0.072 72 27-17660-57-1 Dieldrin 0.1 0.078 78 29-19072-54-8 4,4'-DDD 0.1 0.078 78 35-17872-55-9 4,4'-DDE 0.1 0.066 66 33-17350-29-3 4,4'-DDT 0.1 0.065 65 26-19072-20-8 Endrin 0.1 0.071 71 32-1921031-07-8 Endosulfan sulfate 0.1 0.075 75 32-1857421-93-4 Endrin aldehyde 0.1 0.074 74 29-16453494-70-5 Endrin ketone 0.1 0.085 85 37-191959-98-8 Endosulfan-I 0.1 0.078 78 34-18433213-65-9 Endosulfan-II 0.1 0.079 79 35-18576-44-8 Heptachlor 0.1 0.064 64 26-1681024-57-3 Heptachlor epoxide 0.1 0.077 77 35-18172-43-5 Methoxychlor 0.1 0.071 71 26-199

CAS No. Surrogate Recoveries BSP Limits

877-09-8 Tetrachloro-m-xylene 90% 23-134%877-09-8 Tetrachloro-m-xylene 90% 23-134%2051-24-3 Decachlorobiphenyl 40% 10-127%2051-24-3 Decachlorobiphenyl 85% 10-127%

* = Outside of Control Limits.

329 of 397

MC48470

88.2.4

Page 362: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49033-BS BB70175.D 1 11/01/16 TA 10/28/16 OP49033 GBB3705

The QC reported here applies to the following samples: Method: SW846 8082A

MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9,MC48470-10, MC48470-11, MC48470-12, MC48470-13

Spike BSP BSPCAS No. Compound ug/kg ug/kg % Limits

12674-11-2 Aroclor 1016 252 223 89 47-14411104-28-2 Aroclor 1221 ND 40-14011141-16-5 Aroclor 1232 ND 40-14053469-21-9 Aroclor 1242 ND 40-14012672-29-6 Aroclor 1248 ND 40-14011097-69-1 Aroclor 1254 ND 40-14011096-82-5 Aroclor 1260 252 217 86 45-15637324-23-5 Aroclor 1262 ND 40-14011100-14-4 Aroclor 1268 ND 40-140

CAS No. Surrogate Recoveries BSP Limits

877-09-8 Tetrachloro-m-xylene 85% 25-145%877-09-8 Tetrachloro-m-xylene 86% 25-145%2051-24-3 Decachlorobiphenyl 95% 25-179%2051-24-3 Decachlorobiphenyl 99% 25-179%

* = Outside of Control Limits.

330 of 397

MC48470

88.2.5

Page 363: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Blank Spike/Blank Spike Duplicate Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample File ID DF Analyzed By Prep Date Prep Batch Analytical BatchOP49046-BS BK62770.D 1 11/02/16 TA 10/31/16 OP49046 GBK1977OP49046-BSD BK62771.D 1 11/02/16 TA 10/31/16 OP49046 GBK1977

The QC reported here applies to the following samples: Method: SW846 8082A

MC48470-15, MC48470-16, MC48470-17, MC48470-19

Spike BSP BSP BSD BSD LimitsCAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD

12674-11-2 Aroclor 1016 2 1.8 90 1.8 90 0 34-139/2011104-28-2 Aroclor 1221 ND ND nc 40-140/2011141-16-5 Aroclor 1232 ND ND nc 40-140/2053469-21-9 Aroclor 1242 ND ND nc 40-140/2012672-29-6 Aroclor 1248 ND ND nc 40-140/2011097-69-1 Aroclor 1254 ND ND nc 40-140/2011096-82-5 Aroclor 1260 2 2.0 100 2.2 110 10 37-147/2037324-23-5 Aroclor 1262 ND ND nc 40-140/2011100-14-4 Aroclor 1268 ND ND nc 40-140/20

CAS No. Surrogate Recoveries BSP BSD Limits

877-09-8 Tetrachloro-m-xylene 71% 53% 15-139%877-09-8 Tetrachloro-m-xylene 71% 52% 15-139%2051-24-3 Decachlorobiphenyl 60% 76% 10-148%2051-24-3 Decachlorobiphenyl 61% 81% 10-148%

* = Outside of Control Limits.

331 of 397

MC48470

88.3.1

Page 364: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

DDT/Endrin Breakdown Check Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample: GBE2666-DDT Injection Date: 11/01/16Lab File ID: BE53012.D Injection Time: 07:31 Instrument ID: GCBE

Response ResponseCompound Signal 1 Signal 2

4,4'-DDD 14842648 10077264,4'-DDE 2750520 2379384,4'-DDT 1327776022 116217215

DDT Breakdown a 1.3 % 1.1 %

Endrin aldehyde 2979552 167042Endrin ketone 11015089 893508Endrin 723810691 69540566

Endrin Breakdown b 1.9 % 1.5 %

(a) Calculated as: (DDD + DDE) / (DDD + DDE + DDT) x 100(b) Calculated as: (Endrin Aldehyde + Endrin Ketone) / (Endrin Aldehyde + Endrin Ketone + Endrin) x 100

This check applies to the following Samples, MS, MSD, Blanks, and Standards:

Lab Lab Date Time Hours ClientSample ID File ID Analyzed Analyzed Lapsed Sample ID

GBE2666-IC2666 BE53013.D 11/01/16 07:47 00:16 Initial cal 2GBE2666-IC2666 BE53014.D 11/01/16 08:01 00:30 Initial cal 5GBE2666-IC2666 BE53015.D 11/01/16 08:15 00:45 Initial cal 10GBE2666-IC2666 BE53016.D 11/01/16 08:30 00:59 Initial cal 50GBE2666-ICC2666 BE53017.D 11/01/16 08:44 01:13 Initial cal 100GBE2666-IC2666 BE53018.D 11/01/16 08:59 01:28 Initial cal 125GBE2666-IC2666 BE53019.D 11/01/16 09:13 01:42 Initial cal 250GBE2666-IC2666 BE53020.D 11/01/16 09:27 01:57 Initial cal 1000GBE2666-IC2666 BE53021.D 11/01/16 09:42 02:11 Initial cal 500GBE2666-IC2666 BE53022.D 11/01/16 09:56 02:25 Initial cal 500GBE2666-ICV2666 BE53023.D 11/01/16 10:10 02:40 Initial cal verification 100OP49036-MB BE53024.D 11/01/16 10:25 02:54 Method BlankOP49036-BS BE53025.D 11/01/16 10:39 03:08 Blank SpikeZZZZZZ BE53026.D 11/01/16 10:54 03:23 (unrelated sample)OP48997-MB BE53027.D 11/01/16 11:08 03:37 Method BlankOP48997-BS BE53028.D 11/01/16 11:22 03:52 Blank SpikeOP48997-BS1 BE53029.D 11/01/16 11:37 04:06 Blank SpikeOP49045-MB BE53030.D 11/01/16 11:51 04:20 Method BlankOP49045-BS BE53031.D 11/01/16 12:05 04:35 Blank SpikeZZZZZZ BE53032.D 11/01/16 12:20 04:49 (unrelated sample)ZZZZZZ BE53033.D 11/01/16 12:34 05:03 (unrelated sample)GBE2666-CC2666 BE53034.D 11/01/16 12:48 05:18 Continuing cal 100

332 of 397

MC48470

88.4.1

Page 365: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

DDT/Endrin Breakdown Check Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample: GBE2668-DDT Injection Date: 11/01/16Lab File ID: BE53048.D Injection Time: 17:16 Instrument ID: GCBE

Response ResponseCompound Signal 1 Signal 2

4,4'-DDD 11960026 9495724,4'-DDE 5237530 9149064,4'-DDT 1113667531 82925800

DDT Breakdown a 1.5 % 2.2 %

Endrin aldehyde 3073423 1132006Endrin ketone 12687527 923939Endrin 685282526 69441444

Endrin Breakdown b 2.2 % 2.9 %

(a) Calculated as: (DDD + DDE) / (DDD + DDE + DDT) x 100(b) Calculated as: (Endrin Aldehyde + Endrin Ketone) / (Endrin Aldehyde + Endrin Ketone + Endrin) x 100

This check applies to the following Samples, MS, MSD, Blanks, and Standards:

Lab Lab Date Time Hours ClientSample ID File ID Analyzed Analyzed Lapsed Sample ID

GBE2668-IC2668 BE53049.D 11/01/16 17:31 00:14 Initial cal 2GBE2668-IC2668 BE53050.D 11/01/16 17:45 00:29 Initial cal 5GBE2668-IC2668 BE53051.D 11/01/16 17:59 00:43 Initial cal 10GBE2668-IC2668 BE53052.D 11/01/16 18:14 00:57 Initial cal 50GBE2668-ICC2668 BE53053.D 11/01/16 18:28 01:12 Initial cal 100GBE2668-IC2668 BE53054.D 11/01/16 18:42 01:26 Initial cal 125GBE2668-IC2668 BE53055.D 11/01/16 18:57 01:41 Initial cal 250GBE2668-IC2668 BE53056.D 11/01/16 19:11 01:55 Initial cal 1000GBE2668-IC2668 BE53057.D 11/01/16 19:26 02:09 Initial cal 500GBE2668-IC2668 BE53058.D 11/01/16 19:40 02:24 Initial cal 500GBE2668-ICV2668 BE53059.D 11/01/16 19:55 02:38 Initial cal verification 100OP49051-MS BE53063.D 11/01/16 20:52 03:36 Matrix SpikeOP49051-MSD BE53064.D 11/01/16 21:06 03:50 Matrix Spike DuplicateMC48132-35 BE53065.D 11/01/16 21:21 04:04 (used for QC only; not part of job MC48470)ZZZZZZ BE53066.D 11/01/16 21:35 04:19 (unrelated sample)ZZZZZZ BE53067.D 11/01/16 21:49 04:33 (unrelated sample)OP48997-MS BE53068.D 11/01/16 22:04 04:48 Matrix SpikeOP48997-MSD BE53069.D 11/01/16 22:18 05:02 Matrix Spike DuplicateGBE2668-CC2668 BE53070.D 11/01/16 22:32 05:16 Continuing cal 100

333 of 397

MC48470

88.4.2

Page 366: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

DDT/Endrin Breakdown Check Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample: GBE2668-DDT Injection Date: 11/02/16Lab File ID: BE53081.D Injection Time: 01:11 Instrument ID: GCBE

Response ResponseCompound Signal 1 Signal 2

4,4'-DDD 101851058 83927794,4'-DDE 9866729 10384034,4'-DDT 858824726 67481994

DDT Breakdown a 11.5 % 12.3 %

Endrin aldehyde 11215032 1031077Endrin ketone 67408846 5761902Endrin 664321698 61755925

Endrin Breakdown b 10.6 % 9.9 %

(a) Calculated as: (DDD + DDE) / (DDD + DDE + DDT) x 100(b) Calculated as: (Endrin Aldehyde + Endrin Ketone) / (Endrin Aldehyde + Endrin Ketone + Endrin) x 100

This check applies to the following Samples, MS, MSD, Blanks, and Standards:

Lab Lab Date Time Hours ClientSample ID File ID Analyzed Analyzed Lapsed Sample ID

MC48470-9 BE53085.D 11/02/16 02:08 00:58 B-2/4-6MC48470-8 BE53086.D 11/02/16 02:22 01:12 B-2/0-2MC48470-7 BE53087.D 11/02/16 02:37 01:26 B-3/10-12MC48470-6 BE53088.D 11/02/16 02:51 01:41 B-3/6-8MC48470-4 BE53089.D 11/02/16 03:06 01:55 B-6/8-10MC48470-3 BE53090.D 11/02/16 03:20 02:10 B-6/0-2MC48470-2 BE53091.D 11/02/16 03:34 02:24 B-4/4-6GBE2668-CC2668 BE53092.D 11/02/16 03:49 02:38 Continuing cal 100

334 of 397

MC48470

88.4.3

Page 367: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

DDT/Endrin Breakdown Check Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample: GBE2669-DDT Injection Date: 11/02/16Lab File ID: BE53102.D Injection Time: 07:51 Instrument ID: GCBE

Response ResponseCompound Signal 1 Signal 2

4,4'-DDD 18275067 13532074,4'-DDE 2077092 2512704,4'-DDT 1235251963 108086969

DDT Breakdown a 1.6 % 1.5 %

Endrin aldehyde 4376125 840910Endrin ketone 16319207 1262547Endrin 740140637 74832713

Endrin Breakdown b 2.7 % 2.7 %

(a) Calculated as: (DDD + DDE) / (DDD + DDE + DDT) x 100(b) Calculated as: (Endrin Aldehyde + Endrin Ketone) / (Endrin Aldehyde + Endrin Ketone + Endrin) x 100

This check applies to the following Samples, MS, MSD, Blanks, and Standards:

Lab Lab Date Time Hours ClientSample ID File ID Analyzed Analyzed Lapsed Sample ID

GBE2669-CC2668 BE53103.D 11/02/16 08:06 00:14 Continuing cal 100OP48849-MB2 BE53104.D 11/02/16 08:23 00:31 Method BlankOP48849-LB2 BE53104A.D 11/02/16 08:23 00:31 Leachate BlankZZZZZZ BE53105.D 11/02/16 08:37 00:46 (unrelated sample)OP48849-BS2 BE53106.D 11/02/16 08:52 01:00 Blank SpikeMC48132-21 BE53107.D 11/02/16 09:06 01:15 (used for QC only; not part of job MC48470)ZZZZZZ BE53108.D 11/02/16 09:20 01:29 (unrelated sample)MC48470-15 BE53109.D 11/02/16 09:35 01:43 MW/B-4MC48470-16 BE53110.D 11/02/16 09:49 01:58 MW/B-3MC48470-17 BE53111.D 11/02/16 10:03 02:12 DUPMC48470-19 BE53112.D 11/02/16 10:18 02:27 FIELD BLANKGBE2669-ECC2668 BE53113.D 11/02/16 10:32 02:41 Ending cal 100

335 of 397

MC48470

88.4.4

Page 368: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

DDT/Endrin Breakdown Check Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Sample: GBE2670-DDT Injection Date: 11/02/16Lab File ID: BE53114.D Injection Time: 10:51 Instrument ID: GCBE

Response ResponseCompound Signal 1 Signal 2

4,4'-DDD 107319336 74058794,4'-DDE 5532020 5427224,4'-DDT 974934638 72118414

DDT Breakdown a 10.4 % 9.9 %

Endrin aldehyde 4352445 403422Endrin ketone 47328974 3628902Endrin 769788747 69976108

Endrin Breakdown b 6.3 % 5.4 %

(a) Calculated as: (DDD + DDE) / (DDD + DDE + DDT) x 100(b) Calculated as: (Endrin Aldehyde + Endrin Ketone) / (Endrin Aldehyde + Endrin Ketone + Endrin) x 100

This check applies to the following Samples, MS, MSD, Blanks, and Standards:

Lab Lab Date Time Hours ClientSample ID File ID Analyzed Analyzed Lapsed Sample ID

GBE2670-IC2670 BE53116.D 11/02/16 11:30 00:39 Initial cal 5GBE2670-IC2670 BE53117.D 11/02/16 11:44 00:53 Initial cal 10GBE2670-IC2670 BE53118.D 11/02/16 11:59 01:08 Initial cal 50GBE2670-ICC2670 BE53119.D 11/02/16 12:13 01:22 Initial cal 100GBE2670-IC2670 BE53120.D 11/02/16 12:28 01:37 Initial cal 125GBE2670-IC2670 BE53121.D 11/02/16 12:42 01:51 Initial cal 250GBE2670-IC2670 BE53122.D 11/02/16 12:57 02:06 Initial cal 1000GBE2670-IC2670 BE53123.D 11/02/16 13:11 02:20 Initial cal 500GBE2670-ICV2670 BE53124.D 11/02/16 13:26 02:35 Initial cal verification 100MC48451-9 BE53125.D 11/02/16 13:40 02:49 (used for QC only; not part of job MC48470)ZZZZZZ BE53126.D 11/02/16 13:55 03:03 (unrelated sample)OP49036-MS BE53127.D 11/02/16 14:09 03:18 Matrix SpikeOP49036-MSD BE53128.D 11/02/16 14:24 03:33 Matrix Spike DuplicateMC48470-1 BE53129.D 11/02/16 14:38 03:47 B-4/0-2MC48470-13 BE53130.D 11/02/16 14:53 04:02 B-1/0-2MC48470-5 BE53131.D 11/02/16 15:07 04:16 B-3/0-2MC48470-12 BE53132.D 11/02/16 15:22 04:31 DUPMC48470-11 BE53133.D 11/02/16 15:36 04:45 B-5/5-7MC48470-10 BE53134.D 11/02/16 15:51 05:00 B-5/0-2GBE2670-CC2670 BE53135.D 11/02/16 16:05 05:14 Continuing cal 100

336 of 397

MC48470

88.4.5

Page 369: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Surrogate Recovery Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Method: SW846 8081B Matrix: AQ

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 a S1 b S2 a S2 b

MC48470-15 BE53109.D 53 59 42 72MC48470-16 BE53110.D 57 72 21 38MC48470-17 BE53111.D 65 70 20 42MC48470-19 BE53112.D 85 78 42 54OP49045-BS BE53031.D 90 90 40 85OP49045-MB BE53030.D 60 65 35 60

Surrogate RecoveryCompounds Limits

S1 = Tetrachloro-m-xylene 23-134%S2 = Decachlorobiphenyl 10-127%

(a) Recovery from GC signal #1(b) Recovery from GC signal #2

337 of 397

MC48470

88.5.1

Page 370: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Surrogate Recovery Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Method: SW846 8081B Matrix: SO

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 a S1 b S2 a S2 b

MC48470-1 BE53129.D 57 61 68 127MC48470-2 BE53091.D 77 75 72 74MC48470-3 BE53090.D 72 71 55 74MC48470-4 BE53089.D 70 68 62 66MC48470-5 BE53131.D 65 70 58 109MC48470-6 BE53088.D 89 88 70 89MC48470-7 BE53087.D 60 58 55 60MC48470-8 BE53086.D 76 74 72 77MC48470-9 BE53085.D 76 74 69 74MC48470-10 BE53134.D 65 70 35 56MC48470-11 BE53133.D 70 73 36 57MC48470-12 BE53132.D 69 75 40 65MC48470-13 BE53130.D 47 52 78 120OP49036-BS BE53025.D 76 78 76 85OP49036-MB BE53024.D 71 74 46 77

Surrogate RecoveryCompounds Limits

S1 = Tetrachloro-m-xylene 10-143%S2 = Decachlorobiphenyl 10-172%

(a) Recovery from GC signal #1(b) Recovery from GC signal #2

338 of 397

MC48470

88.5.2

Page 371: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Surrogate Recovery Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Method: SW846 8082A Matrix: AQ

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 a S1 b S2 a S2 b

MC48470-15 BK62772.D 58 59 53 55MC48470-16 BK62773.D 50 53 63 66MC48470-17 BK62774.D 62 63 51 53MC48470-19 BK62775.D 84 87 85 89OP49046-BS BK62770.D 71 71 60 61OP49046-BSD BK62771.D 53 52 76 81OP49046-MB BK62769.D 74 75 72 74

Surrogate RecoveryCompounds Limits

S1 = Tetrachloro-m-xylene 15-139%S2 = Decachlorobiphenyl 10-148%

(a) Recovery from GC signal #1(b) Recovery from GC signal #2

339 of 397

MC48470

88.5.3

Page 372: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Surrogate Recovery Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Method: SW846 8082A Matrix: SO

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 a S1 b S2 a S2 b

MC48470-1 BB70188.D 76 71 130 113MC48470-2 BB70189.D 81 80 99 97MC48470-3 BB70190.D 82 80 109 107MC48470-4 BB70191.D 81 80 110 109MC48470-5 BB70192.D 76 71 123 120MC48470-6 BB70193.D 81 80 108 108MC48470-7 BB70195.D 82 82 109 109MC48470-8 BB70196.D 81 81 118 120MC48470-9 BB70197.D 80 79 109 109MC48470-10 BB70198.D 77 76 102 103MC48470-11 BB70199.D 85 85 119 119MC48470-12 BB70200.D 84 82 113 113MC48470-13 BB70201.D 67 62 118 110OP49033-BS BB70175.D 85 86 95 99OP49033-MB BB70174.D 72 75 70 72

Surrogate RecoveryCompounds Limits

S1 = Tetrachloro-m-xylene 25-145%S2 = Decachlorobiphenyl 25-179%

(a) Recovery from GC signal #1(b) Recovery from GC signal #2

340 of 397

MC48470

88.5.4

Page 373: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Surrogate Recovery Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Method: CT-ETPH 7/06 Matrix: AQ

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 a

MC48470-15 IR3185.D 68MC48470-16 IR3186.D 73MC48470-17 IR3187.D 60MC48470-19 IR3188.D 71OP49058-BS CF5237.D 89OP49058-MB CF5236.D 78

Surrogate RecoveryCompounds Limits

S1 = o-Terphenyl 50-149%

(a) Recovery from GC signal #1

341 of 397

MC48470

88.5.5

Page 374: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

Semivolatile Surrogate Recovery Summary Page 1 of 1 Job Number: MC48470Account: BLCTM BL CompaniesProject: Bridge 00488, Route 66, Windham, CT

Method: CT-ETPH 7/06 Matrix: SO

Samples and QC shown here apply to the above method

Lab LabSample ID File ID S1 a

MC48470-1 CF5232.D 65MC48470-2 CF5220.D 71MC48470-3 CF5223.D 69MC48470-4 CF5224.D 76MC48470-5 CF5231.D 69MC48470-6 CF5225.D 66MC48470-7 CF5222.D 63MC48470-8 CF5229.D 61MC48470-9 CF5221.D 57MC48470-10 CF5226.D 73MC48470-11 CF5227.D 76MC48470-12 CF5228.D 75MC48470-13 CF5233.D 72OP49040-BS CF5217.D 61OP49040-MB CF5216.D 70

Surrogate RecoveryCompounds Limits

S1 = o-Terphenyl 50-137%

(a) Recovery from GC signal #1

342 of 397

MC48470

88.5.6

Page 375: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

Metals Analysis

QC Data Summaries

Includes the following where applicable:

• Method Blank Summaries• Matrix Spike and Duplicate Summaries• Blank Spike and Lab Control Sample Summaries• Serial Dilution Summaries

New EnglandSection 9

343 of 397

MC48470

9

Page 376: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

BLANK RESULTS SUMMARY Part 2 - Method Blanks

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 10/28/16

MB Metal RL IDL MDL raw final

Aluminum 20 1.2 1.2

Antimony 1.0 .13 .17

Arsenic 1.0 .093 .2 0.12 <1.0

Barium 5.0 .026 .076 0.010 <5.0

Beryllium 0.40 .0051 .015

Bismuth 5.0 .1 .15

Boron 10 .074 .13

Cadmium 0.40 .004 .031 -0.010 <0.40

Calcium 500 2.7 .86

Chromium 1.0 .028 .047 0.0 <1.0

Cobalt 5.0 .016 .031

Copper 2.5 .085 .1

Gold 5.0 .12 .11

Iron 10 .55 .44

Lead 1.0 .08 .11 -0.030 <1.0

Lithium 50 .21 .18

Magnesium 500 1.4 4

Manganese 1.5 .018 .047

Molybdenum 10 .12 .51

Nickel 4.0 .027 .057

Palladium 5.0 .1 .14

Platinum 5.0 .38 .54

Potassium 500 3.5 3.4

Selenium 1.0 .14 .3 0.22 <1.0

Silicon 10 .11 .51

Silver 0.50 .042 .061 -0.020 <0.50

Sodium 500 1.8 1.2

Sulfur 5.0 1 .31

Strontium 1.0 .012 .022

Thallium 1.0 .061 .11

Tin 10 .033 .078

Titanium 5.0 .033 .054

Tungsten 10 .51 .93

_________________________________________________________________________________________________________

Page 1

344 of 397

MC48470

99.1.1

Page 377: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

BLANK RESULTS SUMMARY Part 2 - Method Blanks

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 10/28/16

MB Metal RL IDL MDL raw final

Vanadium 1.0 .028 .04

Zinc 2.0 .46 .17

Zirconium 5.0 .036 .17

Associated samples MP26949: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7,MC48470-8, MC48470-9, MC48470-10, MC48470-11

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

345 of 397

MC48470

99.1.1

Page 378: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 10/28/16

MC48470-9 Spikelot QC Metal Original MS MPICP7 % Rec Limits

Aluminum

Antimony

Arsenic 2.1 40.4 41.7 91.9 75-125

Barium 29.1 182 167 91.7 75-125

Beryllium

Bismuth

Boron

Cadmium 0.0083 38.4 41.7 92.1 75-125

Calcium

Chromium 12.2 48.7 41.7 87.5 75-125

Cobalt

Copper

Gold

Iron

Lead 2.5 78.3 83.4 90.9 75-125

Lithium

Magnesium

Manganese anr

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 0.0 38.1 41.7 91.4 75-125

Silicon

Silver 0.0 14.4 16.7 86.3 75-125

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 1

346 of 397

MC48470

99.1.2

Page 379: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 10/28/16

MC48470-9 Spikelot QC Metal Original MS MPICP7 % Rec Limits

Vanadium

Zinc

Zirconium

Associated samples MP26949: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7,MC48470-8, MC48470-9, MC48470-10, MC48470-11

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(N) Matrix Spike Rec. outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

347 of 397

MC48470

99.1.2

Page 380: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 10/28/16

MC48470-9 Spikelot MSD QC Metal Original MSD MPICP7 % Rec RPD Limit

Aluminum

Antimony

Arsenic 2.1 41.0 41.4 94.1 1.5 20

Barium 29.1 187 165 95.5 2.7 20

Beryllium

Bismuth

Boron

Cadmium 0.0083 38.9 41.4 94.0 1.3 20

Calcium

Chromium 12.2 49.9 41.4 91.2 2.4 20

Cobalt

Copper

Gold

Iron

Lead 2.5 79.6 82.7 93.2 1.6 20

Lithium

Magnesium

Manganese anr

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 0.0 38.6 41.4 93.3 1.3 20

Silicon

Silver 0.0 14.6 16.5 88.3 1.4 20

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 3

348 of 397

MC48470

99.1.2

Page 381: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 10/28/16

MC48470-9 Spikelot MSD QC Metal Original MSD MPICP7 % Rec RPD Limit

Vanadium

Zinc

Zirconium

Associated samples MP26949: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7,MC48470-8, MC48470-9, MC48470-10, MC48470-11

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(N) Matrix Spike Rec. outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 4

349 of 397

MC48470

99.1.2

Page 382: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 10/28/16 10/28/16

BSP Spikelot QC BSD Spikelot BSD QC Metal Result MPICP7 % Rec Limits Result MPICP7 % Rec RPD Limit

Aluminum

Antimony

Arsenic 48.4 50 96.8 80-120 48.3 50 96.6 0.2 20

Barium 181 200 90.5 80-120 182 200 91.0 0.6 20

Beryllium

Bismuth

Boron

Cadmium 48.0 50 96.0 80-120 48.0 50 96.0 0.0 20

Calcium

Chromium 45.6 50 91.2 80-120 45.1 50 90.2 1.1 20

Cobalt

Copper

Gold

Iron

Lead 93.8 100 93.8 80-120 93.8 100 93.8 0.0 20

Lithium

Magnesium

Manganese anr

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 48.4 50 96.8 80-120 48.3 50 96.6 0.2 20

Silicon

Silver 17.9 20 89.5 80-120 17.7 20 88.5 1.1 20

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 1

350 of 397

MC48470

99.1.3

Page 383: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 10/28/16 10/28/16

BSP Spikelot QC BSD Spikelot BSD QC Metal Result MPICP7 % Rec Limits Result MPICP7 % Rec RPD Limit

Vanadium

Zinc

Zirconium

Associated samples MP26949: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7,MC48470-8, MC48470-9, MC48470-10, MC48470-11

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

351 of 397

MC48470

99.1.3

Page 384: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 10/28/16

LCS Spikelot QC Metal Result MPLCS86 % Rec Limits

Aluminum

Antimony

Arsenic 90.2 97.5 92.5 78-122

Barium 270 306 88.2 83-117

Beryllium

Bismuth

Boron

Cadmium 71.6 76.6 93.5 82-118

Calcium

Chromium 91.4 103 88.7 80-121

Cobalt

Copper

Gold

Iron

Lead 86.7 96.7 89.7 82-118

Lithium

Magnesium

Manganese anr

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 148 161 91.9 78-123

Silicon

Silver 44.4 49.3 90.1 75-125

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 3

352 of 397

MC48470

99.1.3

Page 385: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 10/28/16

LCS Spikelot QC Metal Result MPLCS86 % Rec Limits

Vanadium

Zinc

Zirconium

Associated samples MP26949: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7,MC48470-8, MC48470-9, MC48470-10, MC48470-11

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 4

353 of 397

MC48470

99.1.3

Page 386: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SERIAL DILUTION RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: ug/l

Prep Date: 10/28/16

MC48470-9 QC Metal Original SDL 1:5 %DIF Limits

Aluminum

Antimony

Arsenic 25.9 23.9 7.7 0-10

Barium 351 367 4.6 0-10

Beryllium

Bismuth

Boron

Cadmium 0.100 0.00 100.0(a) 0-10

Calcium

Chromium 147 156 6.0 0-10

Cobalt

Copper

Gold

Iron

Lead 30.3 31.2 3.0 0-10

Lithium

Magnesium

Manganese anr

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 0.00 0.00 NC 0-10

Silicon

Silver 0.00 0.00 NC 0-10

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 1

354 of 397

MC48470

99.1.4

Page 387: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SERIAL DILUTION RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26949 Methods: SW846 6010C Matrix Type: SOLID Units: ug/l

Prep Date: 10/28/16

MC48470-9 QC Metal Original SDL 1:5 %DIF Limits

Vanadium

Zinc

Zirconium

Associated samples MP26949: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7,MC48470-8, MC48470-9, MC48470-10, MC48470-11

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested(a) Percent difference acceptable due to low initial sample concentration (< 50 times IDL).

_________________________________________________________________________________________________________

Page 2

355 of 397

MC48470

99.1.4

Page 388: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

BLANK RESULTS SUMMARY Part 2 - Method Blanks

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26951 Methods: SW846 6010C Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16

MB Metal RL IDL MDL raw final

Aluminum 0.20 .011 .025

Antimony 0.0060 .0013 .0012

Arsenic 0.010 .0015 .002 -0.0014 <0.010

Barium 0.50 .00019 .00057 0.0 <0.50

Beryllium 0.0040 .00016 .00034

Bismuth 0.050 .00095 .0018

Boron 0.10 .0097 .0023

Cadmium 0.0040 .00019 .0003 -0.00040 <0.0040

Calcium 5.0 .0076 .018

Chromium 0.010 .00039 .0011 0.00030 <0.010

Cobalt 0.050 .00021 .00041

Copper 0.025 .00055 .0042

Gold 0.050 .00091 .0013

Iron 0.10 .0019 .016

Lead 0.010 .0011 .0011 0.0018 <0.010

Lithium 0.50 .0013 .0018

Magnesium 5.0 .025 .056

Manganese 0.015 .00011 .00041

Molybdenum 0.10 .00017 .016

Nickel 0.040 .00033 .00035

Palladium 0.050 .0019 .0014

Platinum 0.050 .0031 .0047

Potassium 5.0 .027 .078

Selenium 0.025 .0018 .0034 -0.0013 <0.025

Silicon 0.10 .0063 .03

Silver 0.0050 .00027 .0014 0.00040 <0.0050

Sodium 5.0 .0051 .035

Sulfur 0.050 .0022 .0033

Strontium 0.010 .000079 .00017

Thallium 0.0050 .0013 .0018

Tin 0.10 .0008 .0022

Titanium 0.050 .00032 .00099

Tungsten 0.10 .0033 .023

_________________________________________________________________________________________________________

Page 1

356 of 397

MC48470

99.2.1

Page 389: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

BLANK RESULTS SUMMARY Part 2 - Method Blanks

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26951 Methods: SW846 6010C Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16

MB Metal RL IDL MDL raw final

Vanadium 0.010 .00037 .0004

Zinc 0.10 .0012 .001

Zirconium 0.050 .00032 .0026

Associated samples MP26951: MC48470-1A, MC48470-2A, MC48470-3A, MC48470-4A, MC48470-5A, MC48470-6A,MC48470-7A, MC48470-8A, MC48470-9A, MC48470-10A, MC48470-11A, MC48470-12A, MC48470-13A

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

357 of 397

MC48470

99.2.1

Page 390: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26951 Methods: SW846 6010C Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16

MC48470-1A Spikelot QC Metal Original MS MPICP7 % Rec Limits

Aluminum

Antimony

Arsenic 0.0 0.49 0.50 98.0 75-125

Barium 0.26 2.2 2.0 97.0 75-125

Beryllium

Bismuth

Boron

Cadmium 0.0011 0.50 0.50 99.8 75-125

Calcium

Chromium 0.00080 0.47 0.50 93.8 75-125

Cobalt

Copper

Gold

Iron

Lead 0.070 1.0 1.0 93.0 75-125

Lithium

Magnesium

Manganese

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 0.0062 0.50 0.50 98.8 75-125

Silicon

Silver 0.00040 0.20 0.20 99.8 75-125

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 1

358 of 397

MC48470

99.2.2

Page 391: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26951 Methods: SW846 6010C Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16

MC48470-1A Spikelot QC Metal Original MS MPICP7 % Rec Limits

Vanadium

Zinc

Zirconium

Associated samples MP26951: MC48470-1A, MC48470-2A, MC48470-3A, MC48470-4A, MC48470-5A, MC48470-6A,MC48470-7A, MC48470-8A, MC48470-9A, MC48470-10A, MC48470-11A, MC48470-12A, MC48470-13A

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(N) Matrix Spike Rec. outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

359 of 397

MC48470

99.2.2

Page 392: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26951 Methods: SW846 6010C Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16

MC48470-1A Spikelot MSD QC Metal Original MSD MPICP7 % Rec RPD Limit

Aluminum

Antimony

Arsenic 0.0 0.49 0.50 98.0 0.0 20

Barium 0.26 2.1 2.0 92.0 4.7 20

Beryllium

Bismuth

Boron

Cadmium 0.0011 0.50 0.50 99.8 0.0 20

Calcium

Chromium 0.00080 0.46 0.50 91.8 2.2 20

Cobalt

Copper

Gold

Iron

Lead 0.070 1.1 1.0 103.0 9.5 20

Lithium

Magnesium

Manganese

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 0.0062 0.50 0.50 98.8 0.0 20

Silicon

Silver 0.00040 0.19 0.20 94.8 5.1 20

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 3

360 of 397

MC48470

99.2.2

Page 393: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26951 Methods: SW846 6010C Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16

MC48470-1A Spikelot MSD QC Metal Original MSD MPICP7 % Rec RPD Limit

Vanadium

Zinc

Zirconium

Associated samples MP26951: MC48470-1A, MC48470-2A, MC48470-3A, MC48470-4A, MC48470-5A, MC48470-6A,MC48470-7A, MC48470-8A, MC48470-9A, MC48470-10A, MC48470-11A, MC48470-12A, MC48470-13A

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(N) Matrix Spike Rec. outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 4

361 of 397

MC48470

99.2.2

Page 394: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26951 Methods: SW846 6010C Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16 10/28/16

BSP Spikelot QC BSD Spikelot BSD QC Metal Result MPICP7 % Rec Limits Result MPICP7 % Rec RPD Limit

Aluminum

Antimony

Arsenic 0.49 0.50 98.0 80-120 0.48 0.50 96.0 2.1 20

Barium 1.9 2.0 95.0 80-120 1.9 2.0 95.0 0.0 20

Beryllium

Bismuth

Boron

Cadmium 0.50 0.50 100.0 80-120 0.49 0.50 98.0 2.0 20

Calcium

Chromium 0.47 0.50 94.0 80-120 0.46 0.50 92.0 2.2 20

Cobalt

Copper

Gold

Iron

Lead 0.99 1.0 99.0 80-120 0.97 1.0 97.0 2.0 20

Lithium

Magnesium

Manganese

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 0.50 0.50 100.0 80-120 0.49 0.50 98.0 2.0 20

Silicon

Silver 0.20 0.20 100.0 80-120 0.19 0.20 95.0 5.1 20

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 1

362 of 397

MC48470

99.2.3

Page 395: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26951 Methods: SW846 6010C Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16 10/28/16

BSP Spikelot QC BSD Spikelot BSD QC Metal Result MPICP7 % Rec Limits Result MPICP7 % Rec RPD Limit

Vanadium

Zinc

Zirconium

Associated samples MP26951: MC48470-1A, MC48470-2A, MC48470-3A, MC48470-4A, MC48470-5A, MC48470-6A,MC48470-7A, MC48470-8A, MC48470-9A, MC48470-10A, MC48470-11A, MC48470-12A, MC48470-13A

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

363 of 397

MC48470

99.2.3

Page 396: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SERIAL DILUTION RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26951 Methods: SW846 6010C Matrix Type: LEACHATE Units: ug/l

Prep Date: 10/28/16

MC48470-1A QC Metal Original SDL 1:5 %DIF Limits

Aluminum

Antimony

Arsenic 0.00 0.00 NC 0-10

Barium 262 265 1.2 0-10

Beryllium

Bismuth

Boron

Cadmium 1.10 0.00 100.0(a) 0-10

Calcium

Chromium 0.800 0.00 100.0(a) 0-10

Cobalt

Copper

Gold

Iron

Lead 69.5 83.1 19.6 (b) 0-10

Lithium

Magnesium

Manganese

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 6.20 0.00 100.0(a) 0-10

Silicon

Silver 0.400 1.90 375.0(a) 0-10

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 1

364 of 397

MC48470

99.2.4

Page 397: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SERIAL DILUTION RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26951 Methods: SW846 6010C Matrix Type: LEACHATE Units: ug/l

Prep Date: 10/28/16

MC48470-1A QC Metal Original SDL 1:5 %DIF Limits

Vanadium

Zinc

Zirconium

Associated samples MP26951: MC48470-1A, MC48470-2A, MC48470-3A, MC48470-4A, MC48470-5A, MC48470-6A,MC48470-7A, MC48470-8A, MC48470-9A, MC48470-10A, MC48470-11A, MC48470-12A, MC48470-13A

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested(a) Percent difference acceptable due to low initial sample concentration (< 50 times IDL).(b) Serial dilution indicates possible matrix interference.

_________________________________________________________________________________________________________

Page 2

365 of 397

MC48470

99.2.4

Page 398: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

BLANK RESULTS SUMMARY Part 2 - Method Blanks

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26953 Methods: SW846 7470A Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16

MB Metal RL IDL MDL raw final

Mercury 0.00020 .0000068 .000034 0.0000065<0.00020

Associated samples MP26953: MC48470-1A, MC48470-2A, MC48470-3A, MC48470-4A, MC48470-5A, MC48470-6A,MC48470-7A, MC48470-8A, MC48470-9A, MC48470-10A, MC48470-11A, MC48470-12A, MC48470-13A

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 1

366 of 397

MC48470

99.3.1

Page 399: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26953 Methods: SW846 7470A Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16

MC48470-1A Spikelot QC Metal Original MS HGRWS1 % Rec Limits

Mercury 0.0 0.0031 0.0030 103.3 75-125

Associated samples MP26953: MC48470-1A, MC48470-2A, MC48470-3A, MC48470-4A, MC48470-5A, MC48470-6A,MC48470-7A, MC48470-8A, MC48470-9A, MC48470-10A, MC48470-11A, MC48470-12A, MC48470-13A

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(N) Matrix Spike Rec. outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 1

367 of 397

MC48470

99.3.2

Page 400: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26953 Methods: SW846 7470A Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16

MC48470-1A Spikelot MSD QC Metal Original MSD HGRWS1 % Rec RPD Limit

Mercury 0.0 0.0031 0.0030 103.3 0.0

Associated samples MP26953: MC48470-1A, MC48470-2A, MC48470-3A, MC48470-4A, MC48470-5A, MC48470-6A,MC48470-7A, MC48470-8A, MC48470-9A, MC48470-10A, MC48470-11A, MC48470-12A, MC48470-13A

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(N) Matrix Spike Rec. outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

368 of 397

MC48470

99.3.2

Page 401: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26953 Methods: SW846 7470A Matrix Type: LEACHATE Units: mg/l

Prep Date: 10/28/16 10/28/16

BSP Spikelot QC BSD Spikelot BSD QC Metal Result HGRWS1 % Rec Limits Result HGRWS1 % Rec RPD Limit

Mercury 0.0032 0.0030 106.7 80-120 0.0033 0.0030 110.0 3.1

Associated samples MP26953: MC48470-1A, MC48470-2A, MC48470-3A, MC48470-4A, MC48470-5A, MC48470-6A,MC48470-7A, MC48470-8A, MC48470-9A, MC48470-10A, MC48470-11A, MC48470-12A, MC48470-13A

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 1

369 of 397

MC48470

99.3.3

Page 402: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

BLANK RESULTS SUMMARY Part 2 - Method Blanks

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26955 Methods: SW846 6010C Matrix Type: AQUEOUS Units: ug/l

Prep Date: 10/31/16 10/31/16

MB MB Metal RL IDL MDL raw final raw final

Aluminum 200 12 25

Antimony 6.0 1.3 1.2

Arsenic 4.0 .93 2 -0.40 <4.0 0.30 <4.0

Barium 50 .26 .57 -0.60 <50 0.80 <50

Beryllium 4.0 .051 .34

Bismuth 50 1 1.8

Boron 100 .74 2.3

Cadmium 4.0 .04 .3 -0.20 <4.0 -0.10 <4.0

Calcium 5000 27 18

Chromium 10 .28 1.1 0.10 <10 0.10 <10

Cobalt 50 .16 .41

Copper 25 .85 4.2 1.9 <25 2.3 <25

Gold 50 1.2 1.3

Iron 100 5.5 16

Lead 5.0 .8 1.1 -0.50 <5.0 5.8 (a)

Lithium 500 2.1 1.8

Magnesium 5000 14 56

Manganese 15 .18 .41

Molybdenum 100 1.2 16

Nickel 40 .27 .35

Palladium 50 1 1.4

Platinum 50 3.8 4.7

Potassium 5000 35 78

Selenium 10 1.4 3.4 0.30 <10 0.30 <10

Silicon 100 1.1 11

Silver 5.0 .42 1.4 0.30 <5.0 0.20 <5.0

Sodium 5000 18 35

Sulfur 50 10 3.3

Strontium 10 .12 .17

Thallium 5.0 .61 1.8

Tin 100 .33 2.2

Titanium 50 .33 .99

Tungsten 100 5.1 23

_________________________________________________________________________________________________________

Page 1

370 of 397

MC48470

99.4.1

Page 403: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

BLANK RESULTS SUMMARY Part 2 - Method Blanks

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26955 Methods: SW846 6010C Matrix Type: AQUEOUS Units: ug/l

Prep Date: 10/31/16 10/31/16

MB MB Metal RL IDL MDL raw final raw final

Vanadium 10 .28 .4

Zinc 20 4.6 1 0.30 <20 7.3 <20

Zirconium 50 .36 2.6

Associated samples MP26955: MC48470-15, MC48470-16, MC48470-17, MC48470-19, MC48470-15F, MC48470-16F,MC48470-17F, MC48470-19F

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested(a) Acceptable, all associated sample concentration is less than RL for this analyte bracketed by this

filter blank.

_________________________________________________________________________________________________________

Page 2

371 of 397

MC48470

99.4.1

Page 404: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26955 Methods: SW846 6010C Matrix Type: AQUEOUS Units: ug/l

Prep Date: 10/31/16 10/31/16

BSP Spikelot QC BSD Spikelot BSD QC Metal Result MPICP7 % Rec Limits Result MPICP7 % Rec RPD Limit

Aluminum

Antimony

Arsenic 497 500 99.4 80-120 487 500 97.4 2.0 20

Barium 1990 2000 99.5 80-120 2000 2000 100.0 0.5 20

Beryllium

Bismuth

Boron

Cadmium 536 500 107.2 80-120 543 500 108.6 1.3 20

Calcium

Chromium 507 500 101.4 80-120 509 500 101.8 0.4 20

Cobalt

Copper 503 500 100.6 80-120 501 500 100.2 0.4 20

Gold

Iron

Lead 1010 1000 101.0 80-120 1010 1000 101.0 0.0 20

Lithium

Magnesium

Manganese anr

Molybdenum

Nickel anr

Palladium

Platinum

Potassium

Selenium 500 500 100.0 80-120 496 500 99.2 0.8 20

Silicon

Silver 196 200 98.0 80-120 196 200 98.0 0.0 20

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 1

372 of 397

MC48470

99.4.2

Page 405: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26955 Methods: SW846 6010C Matrix Type: AQUEOUS Units: ug/l

Prep Date: 10/31/16 10/31/16

BSP Spikelot QC BSD Spikelot BSD QC Metal Result MPICP7 % Rec Limits Result MPICP7 % Rec RPD Limit

Vanadium

Zinc 568 500 113.6 80-120 574 500 114.8 1.1 20

Zirconium

Associated samples MP26955: MC48470-15, MC48470-16, MC48470-17, MC48470-19, MC48470-15F, MC48470-16F,MC48470-17F, MC48470-19F

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

373 of 397

MC48470

99.4.2

Page 406: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SERIAL DILUTION RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26955 Methods: SW846 6010C Matrix Type: AQUEOUS Units: ug/l

Prep Date: 10/31/16

MC48482-5 QC Metal Original SDL 1:5 %DIF Limits

Aluminum

Antimony

Arsenic 0.00 0.00 NC 0-10

Barium 127 129 1.2 0-10

Beryllium

Bismuth

Boron

Cadmium 0.00 0.00 NC 0-10

Calcium

Chromium 1.20 0.00 100.0(a) 0-10

Cobalt

Copper 4.30 10.9 153.5(a) 0-10

Gold

Iron

Lead 1.40 0.00 100.0(a) 0-10

Lithium

Magnesium

Manganese anr

Molybdenum

Nickel anr

Palladium

Platinum

Potassium

Selenium 0.00 0.00 NC 0-10

Silicon

Silver 0.00 0.00 NC 0-10

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 1

374 of 397

MC48470

99.4.3

Page 407: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SERIAL DILUTION RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26955 Methods: SW846 6010C Matrix Type: AQUEOUS Units: ug/l

Prep Date: 10/31/16

MC48482-5 QC Metal Original SDL 1:5 %DIF Limits

Vanadium

Zinc 137 141 3.1 0-10

Zirconium

Associated samples MP26955: MC48470-15, MC48470-16, MC48470-17, MC48470-19, MC48470-15F, MC48470-16F,MC48470-17F, MC48470-19F

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested(a) Percent difference acceptable due to low initial sample concentration (< 50 times IDL).

_________________________________________________________________________________________________________

Page 2

375 of 397

MC48470

99.4.3

Page 408: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

BLANK RESULTS SUMMARY Part 2 - Method Blanks

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26958 Methods: SW846 7470A Matrix Type: AQUEOUS Units: ug/l

Prep Date: 10/31/16 10/31/16

MB MB Metal RL IDL MDL raw final raw final

Mercury 0.20 .0068 .034 0.069 <0.20 0.061 <0.20

Associated samples MP26958: MC48470-15, MC48470-16, MC48470-17, MC48470-19, MC48470-15F, MC48470-16F,MC48470-17F, MC48470-19F

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 1

376 of 397

MC48470

99.5.1

Page 409: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26958 Methods: SW846 7470A Matrix Type: AQUEOUS Units: ug/l

Prep Date: 10/31/16 10/31/16

BSP Spikelot QC BSD Spikelot BSD QC Metal Result HGRWS1 % Rec Limits Result HGRWS1 % Rec RPD Limit

Mercury 3.1 3 103.3 80-120 3.1 3 103.3 0.0 20

Associated samples MP26958: MC48470-15, MC48470-16, MC48470-17, MC48470-19, MC48470-15F, MC48470-16F,MC48470-17F, MC48470-19F

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 1

377 of 397

MC48470

99.5.2

Page 410: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

BLANK RESULTS SUMMARY Part 2 - Method Blanks

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26959 Methods: SW846 7471B Matrix Type: SOLID Units: mg/kg

Prep Date: 10/31/16

MB Metal RL IDL MDL raw final

Mercury 0.033 .0011 .0057 -0.0030 <0.033

Associated samples MP26959: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7,MC48470-8, MC48470-9, MC48470-10, MC48470-11, MC48470-12, MC48470-13

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 1

378 of 397

MC48470

99.6.1

Page 411: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26959 Methods: SW846 7471B Matrix Type: SOLID Units: mg/kg

Prep Date: 10/31/16

MC48470-9 Spikelot QC Metal Original MS HGRWS1 % Rec Limits

Mercury 0.0015 0.49 0.488 100.0 80-120

Associated samples MP26959: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7,MC48470-8, MC48470-9, MC48470-10, MC48470-11, MC48470-12, MC48470-13

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(N) Matrix Spike Rec. outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 1

379 of 397

MC48470

99.6.2

Page 412: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26959 Methods: SW846 7471B Matrix Type: SOLID Units: mg/kg

Prep Date: 10/31/16

MC48470-9 Spikelot MSD QC Metal Original MSD HGRWS1 % Rec RPD Limit

Mercury 0.0015 0.49 0.481 101.6 0.0 20

Associated samples MP26959: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7,MC48470-8, MC48470-9, MC48470-10, MC48470-11, MC48470-12, MC48470-13

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(N) Matrix Spike Rec. outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

380 of 397

MC48470

99.6.2

Page 413: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26959 Methods: SW846 7471B Matrix Type: SOLID Units: mg/kg

Prep Date: 10/31/16 10/31/16

BSP Spikelot QC BSD Spikelot BSD QC Metal Result HGRWS1 % Rec Limits Result HGRWS1 % Rec RPD Limit

Mercury 0.50 0.5 100.0 80-120 0.49 0.5 98.0 2.0 20

Associated samples MP26959: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7,MC48470-8, MC48470-9, MC48470-10, MC48470-11, MC48470-12, MC48470-13

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 1

381 of 397

MC48470

99.6.3

Page 414: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26959 Methods: SW846 7471B Matrix Type: SOLID Units: mg/kg

Prep Date: 10/31/16

LCS Spikelot QC Metal Result HGLCS86 % Rec Limits

Mercury 19.0 20.2 94.1 71-129

Associated samples MP26959: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7,MC48470-8, MC48470-9, MC48470-10, MC48470-11, MC48470-12, MC48470-13

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

382 of 397

MC48470

99.6.3

Page 415: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

BLANK RESULTS SUMMARY Part 2 - Method Blanks

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 11/01/16

MB Metal RL IDL MDL raw final

Aluminum 20 1.2 1.2

Antimony 1.0 .13 .17

Arsenic 1.0 .093 .2 -0.010 <1.0

Barium 5.0 .026 .076 -0.010 <5.0

Beryllium 0.40 .0051 .015

Bismuth 5.0 .1 .15

Boron 10 .074 .13

Cadmium 0.40 .004 .031 0.010 <0.40

Calcium 500 2.7 .86

Chromium 1.0 .028 .047 0.070 <1.0

Cobalt 5.0 .016 .031

Copper 2.5 .085 .1

Gold 5.0 .12 .11

Iron 10 .55 .44

Lead 1.0 .08 .11 0.030 <1.0

Lithium 50 .21 .18

Magnesium 500 1.4 4

Manganese 1.5 .018 .047

Molybdenum 10 .12 .51

Nickel 4.0 .027 .057

Palladium 5.0 .1 .14

Platinum 5.0 .38 .54

Potassium 500 3.5 3.4

Selenium 1.0 .14 .3 -0.090 <1.0

Silicon 10 .11 .51

Silver 0.50 .042 .061 0.030 <0.50

Sodium 500 1.8 1.2

Sulfur 5.0 1 .31

Strontium 1.0 .012 .022

Thallium 1.0 .061 .11

Tin 10 .033 .078

Titanium 5.0 .033 .054

Tungsten 10 .51 .93

_________________________________________________________________________________________________________

Page 1

383 of 397

MC48470

99.7.1

Page 416: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

BLANK RESULTS SUMMARY Part 2 - Method Blanks

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 11/01/16

MB Metal RL IDL MDL raw final

Vanadium 1.0 .028 .04

Zinc 2.0 .46 .17

Zirconium 5.0 .036 .17

Associated samples MP26965: MC48470-12, MC48470-13

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

384 of 397

MC48470

99.7.1

Page 417: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 11/01/16

MC48470-12 Spikelot QC Metal Original MS MPICP7 % Rec Limits

Aluminum

Antimony

Arsenic 1.9 42.9 43.3 94.6 75-125

Barium 35.6 189 173 88.5 75-125

Beryllium

Bismuth

Boron

Cadmium 0.051 39.4 43.3 90.8 75-125

Calcium

Chromium 11.5 47.9 43.3 84.0 75-125

Cobalt

Copper

Gold

Iron anr

Lead 2.6 81.5 86.7 91.0 75-125

Lithium

Magnesium

Manganese

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 0.14 39.4 43.3 90.6 75-125

Silicon

Silver 0.060 15.3 17.3 87.9 75-125

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 1

385 of 397

MC48470

99.7.2

Page 418: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 11/01/16

MC48470-12 Spikelot QC Metal Original MS MPICP7 % Rec Limits

Vanadium

Zinc

Zirconium

Associated samples MP26965: MC48470-12, MC48470-13

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(N) Matrix Spike Rec. outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

386 of 397

MC48470

99.7.2

Page 419: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 11/01/16

MC48470-12 Spikelot MSD QC Metal Original MSD MPICP7 % Rec RPD Limit

Aluminum

Antimony

Arsenic 1.9 42.6 43 94.7 0.7 20

Barium 35.6 192 172 91.0 1.6 20

Beryllium

Bismuth

Boron

Cadmium 0.051 39.1 43 90.8 0.8 20

Calcium

Chromium 11.5 47.8 43 84.4 0.2 20

Cobalt

Copper

Gold

Iron anr

Lead 2.6 81.0 86 91.2 0.6 20

Lithium

Magnesium

Manganese

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 0.14 39.2 43 90.9 0.5 20

Silicon

Silver 0.060 15.0 17.2 86.9 2.0 20

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 3

387 of 397

MC48470

99.7.2

Page 420: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

MATRIX SPIKE AND DUPLICATE RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 11/01/16

MC48470-12 Spikelot MSD QC Metal Original MSD MPICP7 % Rec RPD Limit

Vanadium

Zinc

Zirconium

Associated samples MP26965: MC48470-12, MC48470-13

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(N) Matrix Spike Rec. outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 4

388 of 397

MC48470

99.7.2

Page 421: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 11/01/16 11/01/16

BSP Spikelot QC BSD Spikelot BSD QC Metal Result MPICP7 % Rec Limits Result MPICP7 % Rec RPD Limit

Aluminum

Antimony

Arsenic 49.1 50 98.2 80-120 47.8 50 95.6 2.7 20

Barium 190 200 95.0 80-120 184 200 92.0 3.2 20

Beryllium

Bismuth

Boron

Cadmium 47.7 50 95.4 80-120 46.5 50 93.0 2.5 20

Calcium

Chromium 47.1 50 94.2 80-120 46.0 50 92.0 2.4 20

Cobalt

Copper

Gold

Iron anr

Lead 94.7 100 94.7 80-120 92.2 100 92.2 2.7 20

Lithium

Magnesium

Manganese

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 47.7 50 95.4 80-120 46.4 50 92.8 2.8 20

Silicon

Silver 18.0 20 90.0 80-120 17.7 20 88.5 1.7 20

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 1

389 of 397

MC48470

99.7.3

Page 422: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 11/01/16 11/01/16

BSP Spikelot QC BSD Spikelot BSD QC Metal Result MPICP7 % Rec Limits Result MPICP7 % Rec RPD Limit

Vanadium

Zinc

Zirconium

Associated samples MP26965: MC48470-12, MC48470-13

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 2

390 of 397

MC48470

99.7.3

Page 423: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 11/01/16

LCS Spikelot QC Metal Result MPLCS86 % Rec Limits

Aluminum

Antimony

Arsenic 97.1 97.5 99.6 78-122

Barium 289 306 94.4 83-117

Beryllium

Bismuth

Boron

Cadmium 71.6 76.6 93.5 82-118

Calcium

Chromium 94.8 103 92.0 80-121

Cobalt

Copper

Gold

Iron anr

Lead 91.2 96.7 94.3 82-118

Lithium

Magnesium

Manganese

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 152 161 94.4 78-123

Silicon

Silver 46.9 49.3 95.1 75-125

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 3

391 of 397

MC48470

99.7.3

Page 424: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SPIKE BLANK AND LAB CONTROL SAMPLE SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: mg/kg

Prep Date: 11/01/16

LCS Spikelot QC Metal Result MPLCS86 % Rec Limits

Vanadium

Zinc

Zirconium

Associated samples MP26965: MC48470-12, MC48470-13

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested

_________________________________________________________________________________________________________

Page 4

392 of 397

MC48470

99.7.3

Page 425: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SERIAL DILUTION RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: ug/l

Prep Date: 11/01/16

MC48470-12 QC Metal Original SDL 1:5 %DIF Limits

Aluminum

Antimony

Arsenic 22.6 27.9 23.5 (a) 0-10

Barium 418 434 3.8 0-10

Beryllium

Bismuth

Boron

Cadmium 0.600 0.800 33.3 (a) 0-10

Calcium

Chromium 135 140 3.2 0-10

Cobalt

Copper

Gold

Iron anr

Lead 30.9 30.4 1.6 0-10

Lithium

Magnesium

Manganese

Molybdenum

Nickel

Palladium

Platinum

Potassium

Selenium 1.70 0.00 100.0(a) 0-10

Silicon

Silver 0.700 0.00 100.0(a) 0-10

Sodium

Sulfur

Strontium

Thallium

Tin

Titanium

Tungsten

_________________________________________________________________________________________________________

Page 1

393 of 397

MC48470

99.7.4

Page 426: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SERIAL DILUTION RESULTS SUMMARY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Batch ID: MP26965 Methods: SW846 6010C Matrix Type: SOLID Units: ug/l

Prep Date: 11/01/16

MC48470-12 QC Metal Original SDL 1:5 %DIF Limits

Vanadium

Zinc

Zirconium

Associated samples MP26965: MC48470-12, MC48470-13

Results < IDL are shown as zero for calculation purposes(*) Outside of QC limits(anr) Analyte not requested(a) Percent difference acceptable due to low initial sample concentration (< 50 times IDL).

_________________________________________________________________________________________________________

Page 2

394 of 397

MC48470

99.7.4

Page 427: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

SGS Accutest

General Chemistry

QC Data Summaries

Includes the following where applicable:

• Method Blank and Blank Spike Summaries• Duplicate Summaries• Matrix Spike Summaries

New EnglandSection 10

395 of 397

MC48470

10

Page 428: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

METHOD BLANK AND SPIKE RESULTS SUMMARY GENERAL CHEMISTRY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

MB Spike BSP BSP QC Analyte Batch ID RL Result Units Amount Result %Recov Limits

Cyanide Reactivity GP21025/GN55182 1.5 0.0 mg/kg Sulfide Reactivity GP21026/GN55183 50 0.0 mg/kg

Associated Samples: Batch GP21025: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9, MC48470-10, MC48470-11, MC48470-12, MC48470-13Batch GP21026: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9, MC48470-10, MC48470-11, MC48470-12, MC48470-13(*) Outside of QC limits

__________________________________________________________________________________________________________________________

Page 1

396 of 397

MC48470

1010.1

Page 429: TASK 210 – SUBSURFACE SITE INVESTIGATION REPORT ...Project No. 0163-0196, Replacement of Bridge No. 00488 project in Windham, Connecticut. This report provides a brief description

DUPLICATE RESULTS SUMMARY GENERAL CHEMISTRY

Login Number: MC48470 Account: BLCTM - BL Companies

Project: Bridge 00488, Route 66, Windham, CT

QC Original DUP QC Analyte Batch ID Sample Units Result Result RPD Limits

Ignitability (Flashpoint) GN55217 MC48470-1 Deg. F >230 >230 0.0 0-20% Solids, Percent GN55179 MC48470-6 % 96.3 96.6 0.3 0-5% Solids, Percent GN55180 MC48470-9 % 97.5 98 0.5 0-5%

Associated Samples: Batch GN55179: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8Batch GN55180: MC48470-9, MC48470-10, MC48470-11, MC48470-12, MC48470-13Batch GN55217: MC48470-1, MC48470-2, MC48470-3, MC48470-4, MC48470-5, MC48470-6, MC48470-7, MC48470-8, MC48470-9, MC48470-10, MC48470-11, MC48470-12, MC48470-13(*) Outside of QC limits

__________________________________________________________________________________________________________________________

Page 1

397 of 397

MC48470

1010.2