A00882-613642.pdf

Massachusetts Department Of Transportation Highway Division Proposal No. 613642-136413

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DOCUMENT A00882

SAMPLING AND ANALYSIS PLAN

Massachusetts Department Of Transportation Highway Division Proposal No. 613642-136413

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Taunton and Raynham, Massachusetts

Bridge Reconstruction R-02-003=T-01-004 over Taunton River

MassDOT Project File 613642 October 2025

SAMPLING AND ANALYSIS PLAN

Proposal No. 613642 - 136413

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Bridge Reconstruction R-02-003=T-01-004 over Taunton River

MassDOT Project File 613642

SAMPLING AND ANALYSIS PLAN

Prepared by: BETA GROUP, INC.

Prepared for: City of Taunton and Massachusetts Department of Transportation (MassDOT)

October 2025

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Bridge Reconstruction R-02-003=T-01-004 over Taunton River Sampling and Analysis Plan

TABLE OF CONTENTS

1.0 Introduction and Purpose

1.1 Sampling Equipment & Additional Materials Required

1.2 Site Contacts

1.3 Health and Safety

2.0 Sediment Sampling Oversight

2.1 Sediment Sampling Scope

3.0 Sampling Plan

3.1 Grab Samples

3.2 Composite Samples

3.3 Sediment Sampling Parameters

FIGURES

Figure 1 – Site Locus

Figure 2 – Environmental Resources Map

Figure 3 - Hazardous Materials Figure

Figure 4 - Sampling Plan

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Taunton and Raynham, Massachusetts September 2025

1.0 INTRODUCTION AND PURPOSE

This Sampling and Analysis Plan (SAP) was prepared in support of the Taunton & Raynham – Superstructure Replacement Project, South Street East Over the Taunton River (the Project) (MassDOT Project #613642), which proposes to replace the superstructure and perform substructure repairs of the bridge carrying South Street East/ Old Colony Avenue over the Taunton River in Raynham and Taunton, Massachusetts (Figure 1). As outlined in 314 CMR 9.07(1)C, the Project anticipates removing and disposing of up to 2,000 cubic yards (cy) of dredged material and is subsequently required to conduct sediment sample collection and analysis to ensure the protection of human health, public safety, public welfare, and the environment.

In total, three (3) composite samples and four (4) grab samples will be collected for analysis. The samples will be collected by TG&B Marine Services, Inc. and overseen by a BETA scientist. Each sample will be advanced to the proposed dredging depth within the river (6 feet) using geoprobe hand tools and a sediment samplers. Sampling locations are identified on the Sediment Sampling Plan (Figure 4) and will be GPS located at time of sampling. Following collection, the samples will be sent to ESS Laboratory | A division of the RISE Group in Cranston, RI.

The composite samples will be tested for the following:

• Conductivity

• MCP 14 Metals (includes arsenic, cadmium, chromium, copper, lead, mercury, nickel and zinc as required by 314 CMR 9.07))

• Ignitability

• Reactive Sulfide/cyanides

• Pesticides/herbicides to meet Aggregate reporting limits

• VOCs (volatile organic compounds) (Grab sample based upon highest PID)

• PCBs (polychlorinated biphenyls by EPA Method 8082 and NOAA analysis for congeners) **

• Total SVOCs (semi-volatile organic compounds) o (PAH (polynuclear aromatic hydrocarbons) results will be a subset of the total SVOC results; Total SVOC results to conform with MassDEP Policy # Comm-97-001)

• Extractable Petroleum Hydrocarbons (EPH)

• TPH (total petroleum hydrocarbons)

• Total Organic Carbon

• volatile solids (percent)

• water (percent)

• TCLP, as applicable

** PCB analysis will be conducted using EPA Method 8270C Modified (EPA Method 680);

results will include the “NOAA” list of 22 congeners.

Additionally, each composite sediment sample will be analyzed for cyanide.

The grab samples will be tested for:

• VOCs

• EPH with PAHs

The Sediment Sampling Figure showing the sampling locations and a description of any compositing or subsampling conducted will be submitted along with the analytical results. In addition, a copy of the report

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1.1 SAMPLING EQUIPMENT & ADDITIONAL MATERIALS REQUIRED

The sampling will be conducted using the following equipment:

• Geoprobe hand tools;

• Sediment Sampler;

• Chest waders or equivalent wet weather gear;

• Small watercraft;

• Disposable Nitrile Gloves;

• GPS Unit

• Plastic Zip-lock bags or glass jars depending on lab requirements.

1.2 SITE CONTACTS

The consultant Project Manager (PM) from BETA Group Inc will be Chistopher Jones, PE. They can be contacted at the phone number and email listed below:

Phone Number: 781.255.1982 x. 7017

Email: cjones@beta-inc.com

In the event of “suspect” contamination or previously unknown condition, contact the Project Manager.

1.3 HEALTH AND SAFETY

Field personnel assigned to conduct or inspect drilling and sampling operations shall be appropriately trained for the subject investigation and shall have successfully completed health and safety training in accordance with the "HAZWOPER" Standard promulgated by the Occupational Safety and Health Administration (OSHA) as 29 CFR Part 1910.120(e). Documentation shall include the initial 40-hour training and 8-hour annual refresher training demonstrating compliance within the current work period.

2.0 SEDIMENT SAMPLING OVERSIGHT

2.1 SEDIMENT SAMPLING SCOPE

The total volume of sediment to be dredged from below the Mean High-Water elevation of the Taunton River is estimated to be approximately 2,000 cubic yards. BETA is proposing sampling for parameters outlined in the Water Quality Certification regulation and COMM-97 disposal parameters to evaluate likely off-site disposal alternatives for the generated sediment.

The samples submitted for analysis will be a combination of composite and grab samples, based upon the sample location. Based upon the dredging depth within the stream and in order to provide sufficient information to evaluate sediment volume and off-site management options, BETA has proposed collection of 9 sediment cores to a depth of 6 feet (three from upstream of the bridge, three from the area underneath the bridge, and three from downstream of the bridge) which will be composited to create three composite samples. One grab sample will also be collected in an area underneath the CMP drainage outfall, and three additional grab samples will be collected (one from upstream of the bridge, one from the area underneath the bridge, and one from downstream of the bridge). The location of all sediment sampling locations is available in the attached Sediment Sampling Plan (Figure 4).

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The sediment samples will be analyzed based on the requirements for the 401 Water Quality Certification (WQC), as well as COMM-97 standards to evaluate potential off-site management alternatives as described in Section III below.

Each sample will be advanced to a depth representative of the sediment depth within the River using geoprobe hand tools and a sediment sampler. Sampling locations will be GPS located at time of sampling.

3.0 SAMPLING PLAN

The application for a 401 Water Quality Certification (WQC) for Dredging requires the physical and chemical analysis of sediment samples. Samples will be collected to adequately represent the sediment to be dredged and evaluate off-site management alternatives. The locations of the cores from which WQC samples will be collected are shown on Figure 4.

One (1) grab sample from each of the 3 sample areas (upstream, underneath the bridge and downstream) shown in Figure 4 will be collected, 1 grab sample from the area below the drainage outfall, and 3 composite samples made up of 3 core samples collected from each sample area, as depicted on Figure 4 will be collected and submitted for laboratory analysis, as described below.

If a 0–6-foot depth is infeasible at any of the identified sampling sites, the field personnel responsible for taking the sample will find a representative site as close as possible to the identified site. The Field personnel is responsible for noting the change in sampling location, the impetuous for that change, and the distance of the new location from the previously identified one.

Sample Collection and Analysis will be performed in accordance with MassDEP standard operating procedures. The analytical laboratory will be instructed that the testing must meet the reporting limits indicated in the table above and can also be found under Section 9.07(2)(b)6 of the 401 Water Quality Certification Regulations [314 CMR 9.07(2)(b)6].

A plan showing the sampling locations and a description of any compositing or subsampling conducted will be submitted along with the analytical results. In addition, a copy of the report of sample analysis from the performing laboratory will be provided including quality assurance/quality control information and methods of analysis used.

3.1 GRAB SAMPLES

Grab Samples will be collected in compliance with WQC and COMM-97 standards. Four (4) grab samples will be collected including:

• One sample upstream of the bridge (GS1);

• One sample underneath the bridge (GS2);

• One sample downstream of the bridge (GS3); and,

• One outfall sample (GS 4).

According to 314 CMR 9.07(2) - Sampling and Analysis Requirements, samples collected for analysis of volatile organic compounds are obtained from an individual core and not composited from multiple cores.

In areas adjacent to the , the core selected for VOC analysis will be selected based upon the highest field PID reading of the two cores collected from each sample area. If all PID readings are 0, VOC samples will be selected to be spatially representative of the future dredging area.

3.2 COMPOSITE SAMPLES

Composite samples will be collected in accordance with 314 CMR 9.07(b)(4), which states:

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“For projects up to 10,000 cubic yards, one core for every 1000 cubic yards of dredged material shall be collected. Up to three cores may be composited to create a single sample, provided:

a. The grain-size distribution and likelihood of contamination are similar based on depositional characteristics, spill history, and location of point source discharges;

b. Cores are composited from the same reach; and

c. Samples collected for analysis of volatile compounds are obtained from an individual core and not composited from multiple cores.

For all projects, a minimum of two representative samples shall be characterized physically and chemically.“

The limits of dredging have been subdivided into 3 distinct composite areas that correlate with the downstream, upstream, and below-bridge reaches. Within each composite area, the streambed has consistent grain size distribution, likelihood of contamination, and location of point source discharges. All samples submitted for volatile compounds are to be obtained from an individual core sample and will not be composited from multiple cores.

In total, 3 composite samples will be submitted for WQC parameters and reporting limits in accordance with 314 CMR 9.07. These composite samples will be collected downstream of the bridge (CS1), in the area underneath the bridge (CS2) and upstream (CS3) of the bridge. Each composite sample will consist of 3 core samples located within their respective composite area as designated on the included Sampling and Analysis Plan.

Composite samples will be composed of the following core samples:

• Composite Sample 1 (CS1);

o Core Sample 1 (S1) o Core Sample 2 (S2) o Core Sample 3 (S3)

• Composite Sample 2 (CS2);

o Core Sample 4 (S4) o Core Sample 5 (S5) o Core Sample 6 (S6)

• Composite Sample 3 (CS3);

o Core Sample 7 (S7) o Core Sample 8 (S8) o Core Sample 9 (S9)

In total, 9 core samples will be collected in their respective locations. Each set of three cores, (S1-S3, S4- S6, and S7-S9) will be combined to create the three composite samples (CS1, CS2, and CS3) respectively.

Under no circumstances are the three composite samples (CS1, CS2, and CS3) to be combined. All 3 shall be submitted separately for chemical analysis.

The composite sediment samples will also be analyzed for chemical constituents required by Section D of the WQC Application, and COMM-97 parameters. The COMM-97 parameters is one sample per 500 CY of material so three samples composited from each of the 9 core samples should be sufficient for evaluating disposal options.

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3.3 SEDIMENT SAMPLING PARAMETERS

The results of analysis will be reported in units of mg/kg (ppm) dry weight. The table below is a list following of the constituents that all sediment samples will be analyzed for:

Sample Locations Parameter Reporting Limit mg/kg (dry weight)

Method

GS4, CS1, CS2, CS3 Arsenic 0.5 6010B

GS4, CS1, CS2, CS3 Cadmium 0.1 6010B

GS4, CS1, CS2, CS3 Chromium 1.0 6010B

GS4, CS1, CS2, CS3 Copper 1.0 6010B

GS4, CS1, CS2, CS3 Lead 1.0 6010B

GS4, CS1, CS2, CS3 Mercury 0.02 6010B

GS4, CS1, CS2, CS3 Nickel 1.0 6010B

GS4, CS1, CS2, CS3 Zinc 1.0 6010B

CS1, CS2, CS3 Polycyclic Aromatic Hydrocarbons (PAHs)

0.02 8270

CS1, CS2, CS3 Polychlorinated Biphenyls (PCBs) – by NOAA Summation of Congeners

0.01 NOAA

GS4, CS1, CS2, CS3 Extractable Petroleum Hydrocarbons 25 MassDEP

EPH

CS1, CS2, CS3 Total Semi-Volatile Organic compounds (SVOCs)

CS1, CS2, CS3 Total Petroleum Hydrocarbons (TPH) 8100

CS1, CS2, CS3 Percent Volatile Solids

GS1, GS2, GS3, GS4 Volatile Organic Compounds (VOCs) 0.1 8260

CS1, CS2, CS3 Total Organic Carbon 0.1%

CS1, CS2, CS3 Percent Water 1.0%

CS1, CS2, CS3 Toxicity Characteristic Leaching Procedure

As applicable

CS1, CS2, CS3 Conductivity General Chemistry

CS1, CS2, CS3 Ignitability General Chemistry

CS1, CS2, CS3 Reactive Sulfide/Cyanides

CS1, CS2, CS3 Pesticides/Herbicides

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CS1 Particle Size Analysis ASTM D6913

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Figures

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USGS, MassGIS

Figure 1 Site Locus Old Colony Avenue Bridge Taunton and Raynham, MA

² 0 2,0001,000

Feet 1 inch = 1,000 feet

Data Source: MassGIS USGS Topographic Quadrangle Images (2001)

Approximate Site Locus

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TAUNTON

RAYNHAM

Esri, HERE, Garmin, (c) OpenStreetMap contributors, and the GIS user community

Figure 2 Environmental Resources Figure

Old Colony Avenue Bridge Taunton and Raynham, MA

Environmental Resources Legend MassDEP Hydrologic Feature Marsh/Bog Wooded marsh Open Water NFHL 100 Year Flood Zone

!. NHESP Potential Vernal Pool _̂ NHESP Certified Vernal Pool

NHESP Priority Habitat of Rare Species NHESP Estimated Habitats of Rare Wildlife Zone A Zone B

ZONE C

MassDEP Zone I MassDEP Zone II MassDEP IWPA Outstanding Resource Water Area of Critical Environmental Concern (ACEC) Town Boundary

² 0 250125

Feet 1 inch = 125 feet

Data Source: MassGIS USGS Color Ortho Imagery (2014), MassDEP Wetlands (1:12000) (2009), NHESP Potential Vernal Pools (2000), NHESP Certified Vernal Pools, NHESP Priority Habitats of Rare Species (2008), NHESP Estimated Habitats of Rare Species (2008), Areas of Critical Environmental Concern (2009), FEMA National Flood Hazard Layer (2014), Approximate Site Locus

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4-0000160

Hazardous Materials Map Old Colony Avenue Bridge

Taunton and Raynham, MA

² 0 400200

Feet 1 inch = 200 feet

Data Source: MassGIS Orthophoto (2013/2014); MassGIS Data: MHC Historic Inventory

Approximate Site Locus

Legend Chapter 21E Tier Classified Sites - Currently Active Regulated Status

TIER I

TIER II

TIER1D

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NUMBER DATE MADE BY CHECKED BY REVISIONS

ISSUE DATE

BETA JOB NO.

SHEET NO.

10887

9/15/2025 12:25 PM

OLD COLONY AVE BRIDGE

TAUNTON, MA 02718

SEDIMENT SAMPLING PLAN

TITLE

UNLESS OTHERWISE NOTED OR CHANGED BY REPRODUCTION

SCALE

VER. SCALE IN FEET: 1"=4'

20020

4 0 4 8

HOR. SCALE IN FEET: 1"=20'

REGISTERED PROFESSIONAL PREPARED BY

For Review

Only

SUBCONSULTANTDRAWN BY:

DESIGNED BY:

CHECKED BY:

1. THE "LIMITS OF DREDGING" DEPICTED ON THIS PLAN IS FOR INFORMATIONAL PURPOSES ONLY AND

WILL BE PERMITTED SEPARATELY.

2. HORIZONTAL DATUM IS BASED UPON THE MASSACHUSETTS MAINLAND STATE PLANE COORDINATE

SYSTEM, NAD83 IN US SURVEY FEET.

3. VERTICAL DATUM IS BASED UPON NAVD88 IN US SURVEY FEET.

4. CONTOURS AND ELEVATIONS REFERENCED FROM BATHYMETRIC SURVEY DATA OBTAINED BY GM2

ASSOCIATES, CONDUCTED BETWEEN MAY 2023 AND JUNE 2024.

5. SITE IS LOCATED IN FEMA FLOOD ZONE AE AS SHOWN ON FIRM 25005C0169G, EFFECTIVE 7/16/2015

BASE FLOOD ELEVATION RANGE = 14.4'-14.8'

LEGEND

CONTOUR-MAJOR

CONTOUR-MINOR

EDGE OF WATER

SAMPLE LOCATION

COMPOSITE SEDIMENT SAMPLE LOCATION

GRAB SAMPLE LOCATION

COMPOSITE SAMPLE POINT, CS-3

COMPOSITE SAMPLE POINT, CS-1

COMPOSITE SAMPLE POINT, CS-2

ML

S1

S2

S3

S4

S5

S6

S7

S9

S8

Proposal No. 613642 - 136413

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CERTIFICATE OF ANALYSIS

Jonathan Niro

Beta Engineering

315 Norwood Park South

Norwood, MA 02062

RE: Bridge Reconstruction Over Taunton River (10887)

ESS Laboratory Work Order Number: 25L0055

This signed Certificate of Analysis is our approved release of your analytical results. These results are only representative of sample aliquots received at the laboratory. ESS Laboratory expects its clients to follow all regulatory sampling guidelines. Beginning with this page, the entire report has been paginated.

This report should not be copied except in full without the approval of the laboratory. Samples will be disposed of thirty days after the final report has been delivered. If you have any questions or concerns, please feel free to call our Customer Service Department.

Laurel Stoddard

Laboratory Director

Analytical Summary

The project as described above has been analyzed in accordance with the ESS Quality Assurance Plan.

This plan utilizes the following methodologies: US EPA SW-846, US EPA Methods for Chemical

Analysis of Water and Wastes per 40 CFR Part 136, APHA Standard Methods for the Examination of

Water and Wastewater, American Society for Testing and Materials (ASTM), and other recognized methodologies. The analyses with these noted observations are in conformance to the Quality Assurance

Plan. In chromatographic analysis, manual integration is frequently used instead of automated integration because it produces more accurate results.

The test results present in this report are in compliance with TNI and relative state standards, and/or client Quality Assurance Project Plans (QAPP). The laboratory has reviewed the following: Sample

Preservations, Hold Times, Initial Calibrations, Continuing Calibrations, Method Blanks, Blank Spikes, Blank Spike Duplicates, Duplicates, Matrix Spikes, Matrix Spike Duplicates, Surrogates and Internal

Standards. Any results which were found to be outside of the recommended ranges stated in our SOPs will be noted in the Project Narrative.

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.com Dependability ♦ Quality ♦ Service

Proposal No. 613642 - 136413

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SMorrell Reviewed

Client Name: Beta Engineering Client Project ID: Bridge Reconstruction Over Taunton River ESS Laboratory Work Order: 25L0055

CERTIFICATE OF ANALYSIS

Sample Receipt The following samples were received on December 01, 2025 for the analyses specified on the enclosed Chain of Custody

Record.

Samples 25L0055-01 and 25L0055-02 for Metals were oven dried at 60 degrees Celsius prior to digestion and relogged in as samples 25L0055-04 and 25L0055-05. This was done to increase the dry weight of the sample digested which decreases variability of results and lowers the detection limits for samples with high water content.

Lab Number MatrixSample Name Analysis

CS1 1010A, 2540 G, 2540G, 7.3.3.2, 7.3.4.1, 8081B,

8082A Cong, 8100M, 8151A, 8270E, 9050A, EPH8270, EPH8270SIM, LK, MADEP-EPH

Soil25L0055-01

GS4 8260D Low, EPH8270, EPH8270SIM, MADEP-EPH

Soil25L0055-02

GS1 8260D LowSoil25L0055-03

CS1 - OVEN DRIED 6010D, 7471BSoil25L0055-04

GS4 - OVEN DRIED 6010D, 7471BSoil25L0055-05

Subcontracted Analyses HerbicidesEurofins New England - North Kingstown, RI (M-PA009)

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CERTIFICATE OF ANALYSIS

Project Narrative

MADEP-EPH Extractable Petroleum Hydrocarbons

Elevated Method Reporting Limits due to sample matrix (EL).25L0055-01

Elevated Method Reporting Limits due to sample matrix (EL).25L0055-02

Present in Method Blank (B).25L0055-02

Naphthalene

Relative percent difference for duplicate is outside of criteria (D+).DL51501-BSD2

C11-C22 Unadjusted Aromatics1 (30% @ 25%)

Relative percent difference for duplicate is outside of criteria (D+).DL51501-BSD4

2-Methylnaphthalene (32% @ 30%)

Semi-Volatile Organic Compounds

Calibration required quadratic regression (Q).D5L0088-CCV1

2,4-Dinitrophenol (97% @ 40-160%)

Continuing Calibration %Diff/Drift is above control limit (CD+).D5L0088-CCV1

2,4,6-Tribromophenol (24% @ 20%), Hexachlorobutadiene (30% @ 20%)

Continuing Calibration %Diff/Drift is below control limit (CD-).D5L0088-CCV1

2-Fluorophenol (23% @ 20%), Azobenzene (29% @ 20%), bis(2-Ethylhexyl)phthalate (23% @ 20%), Butylbenzylphthalate (22% @ 20%), Di-n-octylphthalate (28% @ 20%), N-Nitrosodimethylamine (31% @

20%), Phenol-d6 (22% @ 20%)

Calibration required quadratic regression (Q).D5L0116-CCV1

2,4-Dinitrophenol (97% @ 40-160%)

Continuing Calibration %Diff/Drift is above control limit (CD+).D5L0116-CCV1

2,4,6-Tribromophenol (25% @ 20%), Hexachlorobutadiene (37% @ 20%)

Continuing Calibration %Diff/Drift is below control limit (CD-).D5L0116-CCV1

2-Fluorophenol (23% @ 20%), Azobenzene (32% @ 20%), bis(2-Ethylhexyl)phthalate (23% @ 20%), Butylbenzylphthalate (23% @ 20%), Di-n-octylphthalate (28% @ 20%), N-Nitrosodimethylamine (40% @

20%), Phenol-d6 (23% @ 20%)

Blank Spike recovery is below lower control limit (B-).DL50244-BSD1

Aniline (38% @ 40-140%)

Total Metals

RSD of replicate analysis > 20%. Reanalysis produced similar results.25L0055-04

Arsenic

Volatile Organics Low Level

Continuing Calibration %Diff/Drift is below control limit (CD-).D5L0058-CCV1

1,2-Dibromo-3-Chloropropane (21% @ 20%), Tetrahydrofuran (30% @ 20%)

Blank Spike recovery is below lower control limit (B-).DL50212-BS1

Tetrahydrofuran (64% @ 70-130%)

Relative percent difference for duplicate is outside of criteria (D+).DL50212-BSD1

2-Butanone (24% @ 20%), 2-Hexanone (24% @ 20%), Acetone (65% @ 20%)

End of Project Narrative.

No other observations noted.

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CERTIFICATE OF ANALYSIS

Current SW-846 Methodology Versions

Prep Methods

3005A - Aqueous ICP Digestion

3020A - Aqueous Graphite Furnace / ICP MS Digestion

3050B - Solid ICP / Graphite Furnace / ICP MS Digestion

3060A - Solid Hexavalent Chromium Digestion

3510C - Separatory Funnel Extraction

3520C - Liquid / Liquid Extraction

3540C - Manual Soxhlet Extraction

3546 - Microwave Extraction

3580A - Waste Dilution

5030B - Aqueous Purge and Trap

5030C - Aqueous Purge and Trap

5035A - Solid Purge and Trap

Analytical Methods

1010A - Flashpoint

6010D - ICP

6020B - ICP MS

7010 - Graphite Furnace

7196A - Hexavalent Chromium

7470A - Aqueous Mercury

7471B - Solid Mercury

8011 - EDB/DBCP/TCP

8015C - GRO/DRO

8081B - Pesticides

8082A - PCB

8100M - TPH

8151A - Herbicides

8260D - VOA

8270E - SVOA

8270E SIM - SVOA Low Level

9014 - Cyanide

9038 - Sulfate

9040C - Aqueous pH

9045D - Solid pH (Corrosivity)

9050A - Specific Conductance

9056A - Anions (IC)

9060A - TOC

9095B - Paint Filter

MADEP 19-2.1 - EPH

MADEP 18-2.1 - VPH

SW846 Reactivity Methods 7.3.3.2 (Reactive Cyanide) and 7.3.4.1 (Reactive Sulfide) have been withdrawn by EPA. These methods are reported per client request and are not NELAP accredited.

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CERTIFICATE OF ANALYSIS

Client Sample ID: CS1

Date Sampled: 12/01/25 03:46

ESS Laboratory Sample ID: 25L0055-01

Sample Matrix: Soil

Prepared: 12/3/25 19:03 Analyst: TJInitial Volume: 20.5g

Final Volume: 1ml

Percent Solids: 90

Extraction Method: 3546

Units: mg/kg dry

Semi-Volatile Organic Compounds

Analyte Results (MRL) MDL Method Limit Analyst Analyzed Sequence BatchDF

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.027) 1,1-Biphenyl ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 1,2,4-Trichlorobenzene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 1,2-Dichlorobenzene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 1,3-Dichlorobenzene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 1,4-Dichlorobenzene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 2,4,5-Trichlorophenol ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 2,4,6-Trichlorophenol ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 2,4-Dichlorophenol ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 2,4-Dimethylphenol ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (1.09) 2,4-Dinitrophenol ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 2,4-Dinitrotoluene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 2,6-Dinitrotoluene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 2-Chloronaphthalene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 2-Chlorophenol ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 2-Methylnaphthalene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 2-Methylphenol ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.545) 2-Nitrophenol ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 3,3´-Dichlorobenzidine ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 3+4-Methylphenol ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 4-Bromophenyl-phenylether ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) 4-Chloroaniline ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (1.09) 4-Nitrophenol ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Acenaphthene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Acenaphthylene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Acetophenone ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Aniline ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Anthracene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Azobenzene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Benzo(a)anthracene ---

A00882 - 21

CERTIFICATE OF ANALYSIS

Client Sample ID: CS1

Date Sampled: 12/01/25 03:46

ESS Laboratory Sample ID: 25L0055-01

Sample Matrix: Soil

Prepared: 12/3/25 19:03 Analyst: TJInitial Volume: 20.5g

Final Volume: 1ml

Percent Solids: 90

Extraction Method: 3546

Units: mg/kg dry

Semi-Volatile Organic Compounds

Analyte Results (MRL) MDL Method Limit Analyst Analyzed Sequence BatchDF

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Benzo(a)pyrene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Benzo(b)fluoranthene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Benzo(g,h,i)perylene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Benzo(k)fluoranthene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) bis(2-Chloroethoxy)methane ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) bis(2-Chloroethyl)ether ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) bis(2-chloroisopropyl)Ether ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) bis(2-Ethylhexyl)phthalate ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Butylbenzylphthalate ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Chrysene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Dibenzo(a,h)Anthracene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Dibenzofuran ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Diethylphthalate ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Dimethylphthalate ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Di-n-butylphthalate ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.545) Di-n-octylphthalate ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 0.423 (0.272) Fluoranthene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Fluorene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Hexachlorobenzene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Hexachlorobutadiene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Hexachloroethane ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Indeno(1,2,3-cd)Pyrene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Isophorone ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Naphthalene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Nitrobenzene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) N-Nitrosodimethylamine ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (1.09) Pentachlorophenol ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Phenanthrene ---

8270E --- TJ DL50244D5L011612/05/25 16:36 1 ND (0.272) Phenol ---

A00882 - 22

CERTIFICATE OF ANALYSIS

Client Sample ID: CS1

Date Sampled: 12/01/25 03:46

ESS Laboratory Sample ID: 25L0055-01

Sample Matrix: Soil

Prepared: 12/3/25 19:03 Analyst: TJInitial Volume: 20.5g

Final Volume: 1ml

Percent Solids: 90

Extraction Method: 3546

Units: mg/kg dry

Semi-Volatile Organic Compounds

Analyte Results (MRL) MDL Method Limit Analyst Analyzed Sequence BatchDF

8270E --- TJ DL50244D5L011612/05/25 16:36 1 0.329 (0.272) Pyrene ---

%Recovery Qualifier Limits

30-13072 %Surrogate: 1,2-Dichlorobenzene-d4

30-130108 %Surrogate: 2,4,6-Tribromophenol

30-13067 %Surrogate: 2-Chlorophenol-d4

30-13078 %Surrogate: 2-Fluorobiphenyl

30-13059 %Surrogate: 2-Fluorophenol

30-13062 %Surrogate: Nitrobenzene-d5

30-13059 %Surrogate: Phenol-d6

30-13076 %Surrogate: p-Terphenyl-d14

A00882 - 23

CERTIFICATE OF ANALYSIS

Client Sample ID: CS1

Date Sampled: 12/01/25 03:46

ESS Laboratory Sample ID: 25L0055-01

Sample Matrix: Soil

Prepared: 12/3/25 14:35 Initial Volume: 15g Final Volume: 1ml

Percent Solids: 90

Extraction Method: 3546

Units: mg/kg dry

MADEP-EPH Extractable Petroleum Hydrocarbons

Analyte Results (MRL) MDL Method Limit Analyst Analyzed Sequence BatchDF

MADEP-EPH --- JDN DL50324D5L023112/11/25 15:56 1 ND (18.6) C9-C18 Aliphatics1 ---

MADEP-EPH --- JDN DL50324D5L023112/11/25 15:56 1 23.3 (18.6) C19-C36 Aliphatics1 ---

EPH8270 --- JEL DL50324D5L024212/11/25 20:36 1 ND (18.6) C11-C22 Unadjusted Aromatics1 ---

EPH8270 --- TJ [CALC]12/12/25 0:36 ND (18.9) C11-C22 Aromatics1,2 --- ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.020 (0.015) 2-Methylnaphthalene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.096 (0.015) Acenaphthene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.050 (0.015) Naphthalene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.775 (0.015) Phenanthrene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 ND (0.015) Acenaphthylene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.218 (0.015) Anthracene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.337 (0.015) Benzo(a)anthracene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.347 (0.015) Benzo(a)pyrene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.390 (0.015) Benzo(b)fluoranthene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.230 (0.015) Benzo(g,h,i)perylene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.165 (0.015) Benzo(k)fluoranthene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.327 (0.015) Chrysene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.081 (0.015) Dibenzo(a,h)Anthracene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.944 (0.015) Fluoranthene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.119 (0.015) Fluorene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.184 (0.015) Indeno(1,2,3-cd)Pyrene ---

EPH8270SIM --- TJ DL50324D5L025212/12/25 0:36 1 0.736 (0.015) Pyrene ---

%Recovery Qualifier Limits

40-14051 %Surrogate: 1-Chlorooctadecane

40-14086 %Surrogate: 2-Bromonaphthalene

40-14085 %Surrogate: 2-Fluorobiphenyl

40-14078 %Surrogate: O-Terphenyl

A00882 - 24

CERTIFICATE OF ANALYSIS

Client Sample ID: CS1

Date Sampled: 12/01/25 03:46

ESS Laboratory Sample ID: 25L0055-01

Sample Matrix: Soil

Prepared: 12/4/25 12:50 Analyst: DMCInitial Volume: 19.9g

Final Volume: 5ml

Percent Solids: 90

Extraction Method: 3546

Units: mg/kg dry

8081B Organochlorine Pesticides

Analyte Results (MRL) MDL Method Limit Analyzed Sequence BatchDF

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) 4,4´-DDD ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) 4,4´-DDE ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) 4,4´-DDT ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) Aldrin ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) alpha-BHC ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) alpha-Chlordane ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) beta-BHC ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0224) Chlordane (Total) ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) delta-BHC ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) Dieldrin ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) Endosulfan I ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) Endosulfan II ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) Endosulfan Sulfate ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) Endrin ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) Endrin Ketone ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0017) gamma-BHC (Lindane) ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) gamma-Chlordane ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) Heptachlor ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) Heptachlor Epoxide ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) Hexachlorobenzene ---

8081B --- DL50310D5L009712/04/25 16:09 1 ND (0.0028) Methoxychlor ---

%Recovery Qualifier Limits

30-15055 %Surrogate: Decachlorobiphenyl

30-15061 %Surrogate: Decachlorobiphenyl [2C]

30-15053 %Surrogate: Tetrachloro-m-xylene

30-15053 %Surrogate: Tetrachloro-m-xylene [2C]

A00882 - 25

CERTIFICATE OF ANALYSIS

Client Sample ID: CS1

Date Sampled: 12/01/25 03:46

ESS Laboratory Sample ID: 25L0055-01

Sample Matrix: Soil

Prepared: 12/3/25 9:52 Analyst: JDNInitial Volume: 20.2g

Final Volume: 1ml

Percent Solids: 90

Extraction Method: 3546

Units: mg/kg dry

8100M Total Petroleum Hydrocarbons

Analyte Results (MRL) MDL Method Limit Analyzed Sequence BatchDF

8100M --- DL5020412/03/25 23:13 1 44.9 (11.1) Total Petroleum Hydrocarbons

(C9-C36)

%Recovery Qualifier Limits

40-14072 %Surrogate: O-Terphenyl

A00882 - 26

CERTIFICATE OF ANALYSIS

Client Sample ID: CS1

Date Sampled: 12/01/25 03:46

ESS Laboratory Sample ID: 25L0055-01

Sample Matrix: Soil

Percent Solids: 90

Classical Chemistry

Analyte Results (MRL) MDL UnitsMethod Limit Analyst Analyzed BatchDF

9050A umhos/cm--- CCP DL5014212/01/25 21:30 1WL 52 (5) Conductivity ---

1010A °F--- EAM DL5033312/03/25 15:10 1> 200 (N/A) Flashpoint ---

2540G %--- EAM DL5031512/03/25 16:02 1 10 (1) Percent Moisture ---

7.3.3.2 mg/kg--- EAM DL5022212/03/25 14:58 1 ND (2.0) Reactive Cyanide ---

7.3.4.1 mg/kg--- EAM DL5022212/03/25 14:58 1 ND (2.0) Reactive Sulfide ---

LK mg/kg--- CCP [CALC]12/10/25 14:54 1 12500 (500) Total Organic Carbon (Average) ---

2540 G %--- EEM DL5042412/03/25 16:02 1 3 (1) Total Volatile Solids ---

A00882 - 27

CERTIFICATE OF ANALYSIS

Client Sample ID: CS1

Date Sampled: 12/01/25 03:46

ESS Laboratory Sample ID: 25L0055-01

Sample Matrix: Soil

Prepared: 12/5/25 13:01 Analyst: DMCInitial Volume: 30.4g

Final Volume: 2ml

Percent Solids: 90

Extraction Method: 3540C

Units: mg/kg dry

8082 Polychlorinated Biphenyls (PCB) / Congeners

Analyte Results (MRL) MDL Method Limit Analyzed Sequence BatchDF

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#8 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#18 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#28 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#44 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#52 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#66 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#101 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#105 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#118 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#128 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#138 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#153 [2C] ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#170 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#180 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#187 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#195 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#206 ---

8082A Cong --- DL50503D5L016312/08/25 14:05 1 ND (0.00030) BZ#209 ---

%Recovery Qualifier Limits

30-15086 %Surrogate: Tetrachloro-m-xylene

30-15092 %Surrogate: Tetrachloro-m-xylene [2C]

A00882 - 28

CERTIFICATE OF ANALYSIS

Client Sample ID: CS1

Date Sampled: 12/01/25 03:46

ESS Laboratory Sample ID: 25L0055-01

Sample Matrix: Soil

Prepared: 12/10/25 19:15 Analyst: OXGInitial Volume:

Final Volume:

Percent Solids: 83

Extraction Method: 8151A_SP

Units: mg/Kg dry

8151MCP Herbicides (GC)

Analyte Results (MRL) MDL Method Limit Analyzed Sequence BatchDF

8151A0.0059 --- 107933212/11/25 9:57 1 ND (0.040) Dicamba

8151A0.015 --- 107933212/11/25 9:57 1 ND (0.040) 2,4-D

8151A0.013 --- 107933212/11/25 9:57 1 ND (0.040) Dalapon

8151A0.016 --- 107933212/11/25 9:57 1 ND (0.040) Dinoseb

8151A0.0085 --- 107933212/11/25 9:57 1 ND (0.040) 2,4,5-T

8151A0.0042 --- 107933212/11/25 9:57 1 ND (0.040) Silvex (2,4,5-TP)

8151A0.015 --- 107933212/11/25 9:57 1 ND (0.040) 2,4-DB

8151A0.012 --- 107933212/11/25 9:57 1 ND (0.040) Dichlorprop

8151A2.0 --- 107933212/11/25 9:57 1 ND (4.0) MCPA

8151A6.4 --- 107933212/11/25 9:57 1 ND (7.2) MCPP

%Recovery Qualifier Limits

30-150117 %Surrogate: 2,4-Dichlorophenylacetic acid

A00882 - 29

CERTIFICATE OF ANALYSIS

Client Sample ID: GS4

Date Sampled: 12/01/25 12:14

ESS Laboratory Sample ID: 25L0055-02

Sample Matrix: Soil

Prepared: 12/2/25 8:00 Analyst: MEKInitial Volume: 5.1g

Final Volume: 10ml

Percent Solids: 86

Extraction Method: 5035

Units: mg/kg dry

Volatile Organics Low Level

Analyte Results (MRL) MDL Method Limit Analyst Analyzed Sequence BatchDF

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,1,1,2-Tetrachloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,1,1-Trichloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0023) 1,1,2,2-Tetrachloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,1,2-Trichloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,1-Dichloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,1-Dichloroethene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,1-Dichloropropene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,2,3-Trichlorobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,2,3-Trichloropropane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,2,4-Trichlorobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,2,4-Trimethylbenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,2-Dibromo-3-Chloropropane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,2-Dibromoethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,2-Dichlorobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,2-Dichloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,2-Dichloropropane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,3,5-Trimethylbenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,3-Dichlorobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,3-Dichloropropane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 1,4-Dichlorobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.114) 1,4-Dioxane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 2,2-Dichloropropane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0571) 2-Butanone ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 2-Chlorotoluene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0571) 2-Hexanone ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 4-Chlorotoluene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) 4-Isopropyltoluene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0571) 4-Methyl-2-Pentanone ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0571) Acetone ---

A00882 - 30

CERTIFICATE OF ANALYSIS

Client Sample ID: GS4

Date Sampled: 12/01/25 12:14

ESS Laboratory Sample ID: 25L0055-02

Sample Matrix: Soil

Prepared: 12/2/25 8:00 Analyst: MEKInitial Volume: 5.1g

Final Volume: 10ml

Percent Solids: 86

Extraction Method: 5035

Units: mg/kg dry

Volatile Organics Low Level

Analyte Results (MRL) MDL Method Limit Analyst Analyzed Sequence BatchDF

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Benzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Bromobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Bromochloromethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Bromodichloromethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Bromoform ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0114) Bromomethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Carbon Disulfide ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Carbon Tetrachloride ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Chlorobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0114) Chloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Chloroform ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0114) Chloromethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) cis-1,2-Dichloroethene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) cis-1,3-Dichloropropene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0023) Dibromochloromethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Dibromomethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0114) Dichlorodifluoromethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Diethyl Ether ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Di-isopropyl ether ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Ethyl tertiary-butyl ether ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Ethylbenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Hexachlorobutadiene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Isopropylbenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Methyl tert-Butyl Ether ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0286) Methylene Chloride ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Naphthalene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) n-Butylbenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) n-Propylbenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) sec-Butylbenzene ---

A00882 - 31

CERTIFICATE OF ANALYSIS

Client Sample ID: GS4

Date Sampled: 12/01/25 12:14

ESS Laboratory Sample ID: 25L0055-02

Sample Matrix: Soil

Prepared: 12/2/25 8:00 Analyst: MEKInitial Volume: 5.1g

Final Volume: 10ml

Percent Solids: 86

Extraction Method: 5035

Units: mg/kg dry

Volatile Organics Low Level

Analyte Results (MRL) MDL Method Limit Analyst Analyzed Sequence BatchDF

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Styrene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) tert-Butylbenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Tertiary-amyl methyl ether ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Tetrachloroethene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0228) Tetrahydrofuran ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Toluene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) trans-1,2-Dichloroethene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) trans-1,3-Dichloropropene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Trichloroethene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Trichlorofluoromethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0114) Vinyl Chloride ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0057) Xylene O ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0114) Xylene P,M ---

8260D Low --- MEK DL50212D5L005812/02/25 11:28 1 ND (0.0114) Xylenes (Total) ---

%Recovery Qualifier Limits

70-130104 %Surrogate: 1,2-Dichloroethane-d4

70-13096 %Surrogate: 4-Bromofluorobenzene

70-130103 %Surrogate: Dibromofluoromethane

70-13095 %Surrogate: Toluene-d8

A00882 - 32

CERTIFICATE OF ANALYSIS

Client Sample ID: GS4

Date Sampled: 12/01/25 12:14

ESS Laboratory Sample ID: 25L0055-02

Sample Matrix: Soil

Prepared: 12/15/25 13:16 Initial Volume: 15g Final Volume: 1ml

Percent Solids: 86

Extraction Method: 3546

Units: mg/kg dry

MADEP-EPH Extractable Petroleum Hydrocarbons

Analyte Results (MRL) MDL Method Limit Analyst Analyzed Sequence BatchDF

MADEP-EPH --- JDN DL51501D5L027912/17/25 1:07 1 ND (19.4) C9-C18 Aliphatics1 ---

MADEP-EPH --- JDN DL51501D5L027912/17/25 1:07 1 98.3 (19.4) C19-C36 Aliphatics1 ---

EPH8270 --- JEL DL51501D5L031912/16/25 22:20 1 49.6 (19.4) C11-C22 Unadjusted Aromatics1 ---

EPH8270 --- TJ [CALC]12/17/25 22:06 44.5 (19.7) C11-C22 Aromatics1,2 --- ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 ND (0.016) 2-Methylnaphthalene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 ND (0.016) Acenaphthene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1B 0.026 (0.016) Naphthalene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.357 (0.016) Phenanthrene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 ND (0.016) Acenaphthylene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.087 (0.016) Anthracene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.336 (0.016) Benzo(a)anthracene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.437 (0.016) Benzo(a)pyrene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.614 (0.016) Benzo(b)fluoranthene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.330 (0.016) Benzo(g,h,i)perylene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.249 (0.016) Benzo(k)fluoranthene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.461 (0.016) Chrysene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.112 (0.016) Dibenzo(a,h)Anthracene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 1.04 (0.016) Fluoranthene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.016 (0.016) Fluorene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.267 (0.016) Indeno(1,2,3-cd)Pyrene ---

EPH8270SIM --- TJ DL51501D5L034012/17/25 22:06 1 0.756 (0.016) Pyrene ---

%Recovery Qualifier Limits

40-14054 %Surrogate: 1-Chlorooctadecane

40-14092 %Surrogate: 2-Bromonaphthalene

40-14092 %Surrogate: 2-Fluorobiphenyl

40-14081 %Surrogate: O-Terphenyl

A00882 - 33

CERTIFICATE OF ANALYSIS

Client Sample ID: GS1

Date Sampled: 12/01/25 12:14

ESS Laboratory Sample ID: 25L0055-03

Sample Matrix: Soil

Prepared: 12/2/25 8:00 Analyst: MEKInitial Volume: 6.5g

Final Volume: 10ml

Percent Solids: 86

Extraction Method: 5035

Units: mg/kg dry

Volatile Organics Low Level

Analyte Results (MRL) MDL Method Limit Analyst Analyzed Sequence BatchDF

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,1,1,2-Tetrachloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,1,1-Trichloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0018) 1,1,2,2-Tetrachloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,1,2-Trichloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,1-Dichloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,1-Dichloroethene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,1-Dichloropropene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,2,3-Trichlorobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,2,3-Trichloropropane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,2,4-Trichlorobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,2,4-Trimethylbenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,2-Dibromo-3-Chloropropane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,2-Dibromoethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,2-Dichlorobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,2-Dichloroethane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,2-Dichloropropane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,3,5-Trimethylbenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,3-Dichlorobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,3-Dichloropropane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 1,4-Dichlorobenzene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0896) 1,4-Dioxane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 2,2-Dichloropropane ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0448) 2-Butanone ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0045) 2-Chlorotoluene ---

8260D Low --- MEK DL50212D5L005812/02/25 11:54 1 ND (0.0448) 2-Hexanone ---

8260D Low --- MEK DL50212D5L005812/02/25…