ENCL_4 - AMD-01 -Preliminary Geotechnical Report_2024.04.03.pdf

NAVFAC

westonandsampson.com

Perimeter Security Road Repairs NCTAMS Cutler Basis of Design

APPENDIX C

Environmental and Hazardous Materials Data Report

100 International Drive, Suite 152, Portsmouth, NH 03801

Tel: 603.431.3937

23 April 2024

Mr. Ben Grondin

NAVFAC Midland – PWD Maine

Portsmouth Naval Shipyard

B-59, 2 nd

Floor

Kittery, Maine 03904

Re: Environmental and Hazardous Materials Data Report

Perimeter Security Road Repair – Area G and Tower S-7

Naval Computer and Telecommunications Area, Master Station Atlantic Detachment

Cutler, Maine

Dear Mr. Grondin:

Weston & Sampson Engineers, Inc. (Weston & Sampson) has prepared this data report for the above-referenced project (the Project). The report provides the testing results from our sampling to characterize soil and evaluate hazardous materials that contain asbestos, heavy metals, and polychlorinated biphenyls (PCBs) within the Project area. The Project area is shown in Figure 1.

1.0 SOIL & HAZARDOUS MATERIALS INVESTIGATION

Weston & Sampson conducted the environmental and hazardous material investigation between 29 January and

30, 2024. The investigation was performed concurrently with the geotechnical subsurface explorations for Area G and Tower S-7 and included field screening and targeted soil sampling and analysis combined with a hazardous materials survey of the existing tower foundations as well as several landside sea anchors located within the Project area. The sample locations are shown in Figure 1.

1.1 Soil Sampling and Analysis

The soil investigation included assessing soil samples from seven (7) geotechnical soil borings (B-101A, B-102, B-103, B-104, B-105, B-106, and B-107) shown in Figure 1. The soil assessment included evaluating samples during geotechnical boring advancements and vacuum excavation pre-clearance activities for visual or olfactory contamination and the presence of volatile organic compounds (VOCs) using photoionization detector (PID). One representative shallow soil sample at each location was also collected for laboratory analysis during vacuum excavation. Shallow soil samples were collected from depths up to 5 feet below ground surface (ft bgs) and submitted for disposal characterization analysis:

• Resource Conservation and Recovery Act (RCRA) 8 Metals,

• Toxic Leaching Procedure (TCLP) RCRA 8 Metals,

• Volatile Organic Compounds (VOCs),

• Semi-Volatile Organic Compounds (SVOCs),

• Pesticides,

• Herbicides,

• Polychlorinated biphenyls (PCBs),

• Total Petroleum Hydrocarbons (TPH),

• Flashpoint,

• pH (Corrosivity), and

• Reactive Sulfide and Cyanide

The sample results are summarized in Table 1. The laboratory data reports are included in Attachment A.

1.2 Hazardous Materials Sampling and Analysis

On 30 November 2023, Weston & Sampson performed a preliminary visual inspection of the Tower S-7 guy wire foundations located in the vicinity of B-105 and B-106. Based on the inspection, the concrete foundations and an apparent patching compound applied to the foundation were sampled for asbestos, while paint samples from the metal towers and the concrete patching compound were analyzed for PCBs, lead, cadmium, and chromium. The concrete patch was also analyzed for toxicity characteristic leaching procedure (TCLP) lead. As noted above, asbestos samples from three (3) representative sea anchors (143, 144, and 145) located along the perimeter access road were also sampled for asbestos.

Weston & Sampson collected the hazardous materials samples on 30 January 2024. The sampling was performed under the oversight of a Maine-licensed asbestos inspector (#AI-0380) in accordance with National Emissions

Standards for Hazardous Air Pollutants (NESHAP), Asbestos Hazard Emergency Response Action (AHERA), and other applicable state and federal requirements. Laboratory data reports are provided in Attachment A.

2.0 INVESTIGATION RESULTS

2.1 Soil Results

In general, subsurface conditions encountered in the Project area consisted of sand and gravel fill material that was underlain by native sand and gravel with occasional evidence of peat and organic soils. No staining, odor, or other evidence of contamination was identified. Similarly, the PID field screening results were less than 3.0 parts per million (ppm), except at B-104 where 18.8 ppm was detected at approximately 15 ft bgs. The elevated PID result at this location is likely attributed to a layer of organic soil encountered at this location and depth. Additional information about subsurface conditions is provided with the geotechnical report that is being submitted under separate cover.

As shown in Table 1, representative composite soil samples were collected between 0 to 5 ft bgs at B-102 and B-

103. Due to shallow refusal or groundwater, samples were collected at the remaining locations between 1 and 4.5 ft bgs. The sampling results identified select metals and petroleum hydrocarbon concentrations as well as a low levels of acetone, a common laboratory contaminant, in several samples and toluene at one location (B-107).

Where detected, the concentrations for all parameters were below their Maine Department of Environmental

Protection (MEDEP) Commercial Worker and Construction Worker Remedial Action Guidelines (RAGs). The TCLP metals testing results were also below the RCRA characteristic threshold concentrations.

2.2 Hazardous Material Results

Materials that contain greater than or equal to one percent (>1%) asbestos are considered asbestos containing material (ACM). Based on the testing results, the concrete and side coating for the existing Tower S-7 foundations does not contain asbestos, nor do the concrete caps associated with sea anchors. The concrete anchor pipes were found to contain asbestos (12% Chrysotile, 8% Crocidolite).

The heavy metals and PCB sampling results are summarized in Table 2. As shown, the paint sampling results from

B-105 and B-106 identified various concentrations of chromium and lead, and low cadmium concentrations at B-

106. Low chromium and lead concentrations were also identified in the patching compound applied to the foundation at B-105. The TCLP lead concentration in the paint was below the laboratory reporting limit. PCBs were not detected above the laboratory reporting limit in the paint or patching compound.

3.0 CONCLUSIONS

Weston & Sampson performed an investigation to evaluate soil and hazardous materials within the Project area.

The results indicate the following:

• Soil contains low levels of select total and TCLP metals and petroleum hydrocarbons. Based on the concentrations detected, surplus soil generated during the Project appears suitable for off-site transportation and disposal at a licensed non-hazardous landfill. Alternatively, soil may be suitable for on-site reuse.

• ACM was not identified at the Tower S-7 foundations or concrete sea anchor caps. The concrete sea anchor pipes are considered ACM. If required, demolition/removal of the sea anchor pipes will require appropriate management under the oversight of a licensed asbestos abatement contractor.

• The paint on the Tower S-7 metal towers and patching compound contains lead, cadmium, and chromium. The management and disposal of lead containing waste must be done in accordance with applicable local, state, and federal regulations. Since TCLP lead concentrations were below their RCRA threshold criteria, debris appears suitable for off-site recycling or disposal as non-hazardous waste.

Similarly, since PCB concentration were not detected above laboratory reporting limits, the painted debris is not considered Bulk Product Waste and not regulated under Toxic Substance Control Act (TSCA).

If you have any questions or would like to discuss our environmental investigation findings, please contact the undersigned at bridgeot@wseinc.com.

Sincerely, WESTON & SAMPSON ENGINEERS, INC.

Todd M. Bridgeo, PE, LSP

Team Leader

ATTACHMENTS

Figure 1 – Sampling Plan

Table 1 – Soil Sampling Results

Table 2 – Heavy Metals & PCB Sampling Results

Attachment A – Laboratory Data Reports

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Weston & Sampson Engineers, Inc.

55 Walkers Brook Drive, Suite 100

Reading, MA 01867

978.532.1900 800.SAMPSON

SAMPLING PLAN

METALS AND PCB SAMPLES WERE COLLECTED AT

B-105 AND B-106. ASBESTOS SAMPLES WERE

COLLECTED AT B-105, B-106, ANCHOR 143,

ANCHOR 144, AND ANCHOR 145.

4.

ENVIRONMENTAL SOIL SAMPLES WERE COLLECTED

AT BORINGS B-101A, B-102, B-103, B-104,

B-105, B-106, AND B-107.

5.

BORING AND SAMPLING LOCATIONS SHOWN ARE

APPROXIMATE

Anchor 145

Anchor 143

Anchor 144

105-23 to 105-29 M05, M06, M09, M10 M07, M08, M11

106-34 to 106-39 M01, M02, M03, M04

Hazardous Material Testing Location

B-101A B-102 B-103 B-104 B-105 B-106 B-107

PARAMETER UNITS 0-1 FT 0-5 FT 0-5 FT 0-3 FT 0-1.5 FT 0-4.5 FT 0-3.5 FT

COMMERCIAL

WORKER

CONSTRUCTION

WORKER

01/30/24 1/30/2024 1/30/2024 1/29/2024 1/29/2024 1/29/2024 1/29/2024

3050B Total Metals

Arsenic mg/kg dry 41 54 - 8.03 7.49 3.51 4.89 5.59 17.6 3.18 -

Barium mg/kg dry 100,000 20,000 - 19.6 7.36 10.2 16 10.1 53.6 28.7 -

Cadmium mg/kg dry 140 42 - <0.45 <0.78 <0.43 <0.35 <0.47 <0.98 <0.48 -

Chromium mg/kg dry 100,000 27,000 - 26.7 19.8 12 12.3 28.6 41.2 10.5 -

Lead mg/kg dry 440 460 - 16.8 12.1 5.36 9.8 12.1 28.7 7.54 -

Mercury mg/kg dry 3.1 3.1 - <0.034 <0.031 <0.037 <0.032 <0.037 <0.036 <0.044 -

Selenium mg/kg dry 8,000 1,700 - <4.46 <3.89 <4.33 <3.52 <4.68 <4.90 <4.81 -

Silver mg/kg dry 8,000 1,700 - <0.45 <0.39 <0.43 <0.35 <0.47 <0.49 <0.48 -

1311 TCLP Metals

Arsenic mg/L - - 5.0 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 -

Barium mg/L - - 100 0.11 0.04 0.11 0.06 0.10 0.20 0.09 -

Cadmium mg/L - - 1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 -

Chromium mg/L - - 5.0 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 -

Lead mg/L - - 5.0 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 -

Mercury mg/L - - 0.2 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 -

Selenium mg/L - - 1.0 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 -

Silver mg/L - - 5.0 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 -

8100M Total Petroleum Hydrocarbons

Total Petroleum Hydrocarbons (C9-C36) mg/kg dry - - - <11.5 <10.5 20.5 115 <11.5 25.5 112 -

8081 Organochlorine Pesticides

4,4'- DDD mg/kg dry 130 130 - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

4,4'- DDE mg/kg dry 130 100 - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

4,4'- DDT mg/kg dry 120 160 - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Alachlor mg/kg dry 560 2,600 - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Aldrin mg/kg dry 2.5 14 - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -alpha-BHC mg/kg dry 5.0 29 - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -alpha-Chlordane mg/kg dry - - - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -beta-BHC mg/kg dry 17 100 - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Chlordane (Total) mg/kg dry 110 100 - <0.0351 <0.0324 <0.0380 <0.0297 <0.0360 <0.336 <0.0356 -delta-BHC mg/kg dry - - - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Dieldrin mg/kg dry 2.0 12 - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Endosulfan I mg/kg dry - - - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Endosulfan II mg/kg dry - - - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Endosulfan Sulfate mg/kg dry - - - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Endrin mg/kg dry 340 150 0.02 <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Endrin Aldehyde mg/kg dry - - - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Endrin Ketone mg/kg dry - - - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -gamma-BHC (Lindane) mg/kg dry 35 200 0.4 <0.0018 <0.0016 <0.0019 <0.0015 <0.0018 <0.0017 <0.0018 -gamma-Chlordane mg/kg dry - - - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Heptachlor mg/kg dry 8.7 34 0.008 <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Heptachlor Epoxide mg/kg dry 4.5 4.4 0.008 <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Hexachlorobenzene mg/kg dry 14 3.4 - <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Methoxychlor mg/kg dry 5600 1,300 10 <0.0029 <0.0027 <0.0032 <0.0025 <0.0030 <0.0028 <0.0030 -

Toxaphene mg/kg dry - - 0.5 <0.146 <0.135 <0.158 <0.124 <0.150 <0.140 <0.148 -

8151A Chlorinated Herbicides

2,4,5-T mg/kg dry 9000 2100 - <0.011 <0.010 <0.012 <0.009 <0.011 <0.011 <0.013 -

2,4,5-TP (Silvex) mg/kg dry 1.0 <0.011 <0.010 <0.012 <0.009 <0.011 <0.011 <0.013 -

2,4-D mg/kg dry - - 10 <0.054 <0.050 <0.058 <0.045 <0.054 <0.054 <0.065 -

2,4-DB mg/kg dry - - - <0.055 <0.051 <0.058 <0.046 <0.055 <0.055 <0.066 -

Dalapon mg/kg dry 34000 7700 - <0.053 <0.049 <0.056 <0.044 <0.052 <0.052 <0.063 -

Dicamba mg/kg dry - - - <0.011 <0.010 <0.012 <0.009 <0.011 <0.011 <0.013 -

Dichlorprop mg/kg dry - - - <0.054 <0.050 <0.058 <0.045 <0.054 <0.054 <0.065 -

MEDEP REMEDIAL

ACTION GUIDELINES (RAGs)

TABLE 1

SOIL SAMPLING RESULTS

CUTLER PERMITER ROAD PROJECT

NCTAMS LANT DET, CUTLER, MAINE

TCLP TOXICITY

CHARACTERISTIC

THRESHOLD

CONCENTRATION

SAMPLE LOCATIONS

TRIP BLANK

3/21/2024 1 OF 4 WESTON SAMPSON

COMMERCIAL

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WORKER

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MEDEP REMEDIAL

ACTION GUIDELINES (RAGs)

TABLE 1

SOIL SAMPLING RESULTS

CUTLER PERMITER ROAD PROJECT

NCTAMS LANT DET, CUTLER, MAINE

TCLP TOXICITY

CHARACTERISTIC

THRESHOLD

CONCENTRATION

SAMPLE LOCATIONS

TRIP BLANK

Dinoseb mg/kg dry 1,100 260 - <0.055 <0.051 <0.058 <0.046 <0.055 <0.055 <0.066 -

MCPA mg/kg dry 560 130 - <2.69 <2.50 <2.86 <2.24 <2.68 <2.67 <3.23 -

MCPP mg/kg dry 1,100 2,600 - <2.72 <2.52 <2.89 <2.26 <2.71 <2.70 <3.27 -

8260B Volatile Organic Compounds (VOC) Low Level

1,1,1-Trichloroethane mg/kg dry 640 640 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,1,2,2-Tetrachloroethane mg/kg dry 39 150 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,1,2-Trichloro-1,2,2-trifluoroethane mg/kg dry 910 910 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,1,2-Trichloroethane mg/kg dry 9.4 68 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,1-Dichloroethane mg/kg dry 30 110 0.5 <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,1-Dichloroethene mg/kg dry 230 850 0.7 <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,2,3-Trichlorobenzene mg/kg dry 1,300 2,700 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,2,3-Trichloropropane mg/kg dry 1.5 4.3 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,2,4-Trichlorobenzene mg/kg dry 380 400 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,2,4-Trimethylbenzene mg/kg dry 220 220 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,2-Dibromo-3-Chloropropane mg/kg dry 1.0 3.5 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,2-Dibromoethane mg/kg dry 2.4 8.9 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,2-Dichlorobenzene mg/kg dry 380 380 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,2-Dichloroethane mg/kg dry 30 110 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,2-Dichloropropane mg/kg dry 99 32 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,3,5-Trimethylbenzene mg/kg dry 180 180 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,3-Dichlorobenzene mg/kg dry 300 280 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,4-Dichlorobenzene mg/kg dry 170 620 7.5 <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

1,4-Dioxane mg/kg dry 340 1,700 - <0.109 <0.1030 <0.1070 <0.0953 <0.1130 <0.1170 <0.1450 <0.1000

2-Butanone mg/kg dry 28,000 11,000 200 <0.0547 <0.0517 <0.0536 <0.0477 <0.0565 <0.0585 <0.0724 <0.0500

2-Hexanone mg/kg dry 2,000 300 - <0.0547 <0.0517 <0.0536 <0.0477 <0.0565 <0.0585 <0.0724 <0.0500

4-Methyl-2-Pentanone mg/kg dry 3,400 3,300 - <0.0547 <0.0517 <0.0536 <0.0477 <0.0565 <0.0585 <0.0724 <0.0500

Acetone mg/kg dry 100,000 100,000 - 0.119 0.213 0.136 <0.0477 0.105 0.188 0.412 0.0542

Benzene mg/kg dry 75 240 0.5 <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Bromochloromethane mg/kg dry 940 330 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Bromodichloromethane mg/kg dry 19 70 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Bromoform mg/kg dry 790 890 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Bromomethane mg/kg dry 45 120 - <0.0109 <0.0103 <0.0107 <0.0095 <0.0113 <0.0117 <0.0145 <0.0100

Carbon Disulfide mg/kg dry 740 720 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Carbon Tetrachloride mg/kg dry 43 160 0.5 <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Chlorobenzene mg/kg dry 740 740 100 <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Chloroethane mg/kg dry 2,100 2,000 - <0.0109 <0.0103 <0.0107 <0.0095 <0.0113 <0.0117 <0.0145 <0.0100

Chloroform mg/kg dry 21 75 6.0 <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Chloromethane mg/kg dry 690 1,300 - <0.0109 <0.0103 <0.0107 <0.0095 <0.0113 <0.0117 <0.0145 <0.0100 cis-1,2-Dichloroethene mg/kg dry 540 800 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050 cis-1,3-Dichloropropene mg/kg dry - - - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Cyclohexane mg/kg dry 120 120 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Dibromomethane mg/kg dry 150 190 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Dichlorodifluoromethane mg/kg dry 550 730 - <0.0109 <0.0103 <0.0107 <0.0095 <0.0113 <0.0117 <0.0145 <0.0100

Ethylbenzene mg/kg dry 380 470 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Isopropylbenzene mg/kg dry 270 270 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Methyl acetate mg/kg dry 100,000 740 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Methyl tert-Butyl Ether mg/kg dry 3,000 8,300 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Methylcyclohexane mg/kg dry - - - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Methylene Chloride mg/kg dry 2,500 1,900 - <0.0274 <0.0258 <0.0268 <0.0238 <0.0282 <0.0293 <0.0362 <0.0250

Styrene mg/kg dry 870 860 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Tetrachloroethene mg/kg dry 160 84 0.5 <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Toluene mg/kg dry 810 820 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 0.0078 <0.0050 trans-1,2-Dichloroethene mg/kg dry 450 1,200 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050 trans-1,3-Dichloropropene mg/kg dry - - - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Trichloroethene mg/kg dry 28 4.2 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Trichlorofluoromethane mg/kg dry 100,000 940 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

3/21/2024 2 OF 4 WESTON SAMPSON

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MEDEP REMEDIAL

ACTION GUIDELINES (RAGs)

TABLE 1

SOIL SAMPLING RESULTS

CUTLER PERMITER ROAD PROJECT

NCTAMS LANT DET, CUTLER, MAINE

TCLP TOXICITY

CHARACTERISTIC

THRESHOLD

CONCENTRATION

SAMPLE LOCATIONS

TRIP BLANK

Vinyl Chloride mg/kg dry 24 80 0.2 <0.0109 <0.0103 <0.0107 <0.0095 <0.0113 <0.0117 <0.0145 <0.0100

Xylene O mg/kg dry 260 260 - <0.0055 <0.0052 <0.0054 <0.0048 <0.0056 <0.0059 <0.0072 <0.0050

Xylene P,M mg/kg dry 260 260 - <0.0109 <0.0103 <0.0107 <0.0095 <0.0113 <0.0117 <0.0145 <0.0100

Xylenes (Total) mg/kg dry 260 260 - ND ND ND ND ND ND ND ND

8270E Semi Volatile Organic Compounds (sVOC)

1,1-Biphenyl mg/kg dry 300 400 - <0.029 <0.028 <0.031 <0.048 <0.030 <0.029 <0.033 -

1,2,4,5-Tetrachlorobenzene mg/kg dry 48 10 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

1-Methylnaphthalene mg/kg dry 990 6000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2,3,4,6-Tetrachlorophenol mg/kg dry 34000 2600 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2,4,5-Trichlorophenol mg/kg dry 100,000 77,000 400 <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2,4,6-Trichlorophenol mg/kg dry 1,100 1,300 2.0 <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2,4-Dichlorophenol mg/kg dry 3,400 5,100 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2,4-Dimethylphenol mg/kg dry 22,000 13,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2,4-Dinitrophenol mg/kg dry 670 1,500 - <1.160 <1.120 <1.240 <1.930 <1.200 <1.160 <0.334 -

2,4-Dinitrotoluene mg/kg dry 100 600 0.13 <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2,6-Dinitrotoluene mg/kg dry 21 130 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2-Chloronaphthalene mg/kg dry 82,000 48,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2-Chlorophenol mg/kg dry 8,000 2,700 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2-Methylnaphthalene mg/kg dry 4,100 960 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2-Methylphenol mg/kg dry 56,000 51,000 200 <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

2-Nitroaniline mg/kg dry - - - <0.579 <0.560 <0.621 <0.967 <0.599 <0.580 <0.668 -

2-Nitrophenol mg/kg dry - - - <0.579 <0.560 <0.621 <0.967 <0.599 <0.580 <0.668 -

3,3´-Dichlorobenzidine mg/kg dry 70 400 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

3+4-Methylphenol mg/kg dry - - 200 <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

3-Nitroaniline mg/kg dry - - - <0.290 <0.560 <0.621 <0.967 <0.599 <0.580 <0.668 -

4,6-Dinitro-2-Methylphenol mg/kg dry - - - <1.160 <1.120 <1.240 <1.930 <1.200 <1.160 <1.340 -

4-Bromophenyl-phenylether mg/kg dry - - - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

4-Chloro-3-Methylphenol mg/kg dry 100,000 26,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

4-Chloroaniline mg/kg dry - - - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

4-Chloro-phenyl-phenyl ether mg/kg dry - - - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

4-Nitroaniline mg/kg dry 1,600 2,500 - <0.579 <0.560 <0.621 <0.967 <0.599 <0.580 <0.668 -

4-Nitrophenol mg/kg dry - - - <1.160 <1.120 <1.240 <1.930 <1.200 <1.160 <1.340 -

Acenaphthene mg/kg dry 62,000 48,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Acenaphthylene mg/kg dry 45,000 48,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Acetophenone mg/kg dry 100,000 100,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Anthracene mg/kg dry 100,000 100,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Atrazine mg/kg dry 140 770 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Benzaldehyde mg/kg dry 11,000 62,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Benzo(a)anthracene mg/kg dry 280 45 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Benzo(a)pyrene mg/kg dry 29 10 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Benzo(b)fluoranthene mg/kg dry 2,900 17,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Benzo(g,h,i)perylene mg/kg dry 23,000 72,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Benzo(k)fluoranthene mg/kg dry 290 1,700 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -bis(2-Chloroethoxy)methane mg/kg dry - - - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -bis(2-Chloroethyl)ether mg/kg dry 15 62 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -bis(2-chloroisopropyl)Ether mg/kg dry - - - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -bis(2-Ethylhexyl)phthalate mg/kg dry 2,200 26 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Butylbenzylphthalate mg/kg dry 17,000 99,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Caprolactam mg/kg dry - - - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Carbazole mg/kg dry 110 6,700 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Chrysene mg/kg dry 2,900 100,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Dibenzo(a,h)Anthracene mg/kg dry 29 170 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Dibenzofuran mg/kg dry 1,600 1,400 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Diethylphthalate mg/kg dry 100,000 100,000 - <0.290 <0.280 <0.311 <0.000 <0.300 <0.290 <0.334 -

Dimethylphthalate mg/kg dry - - - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Di-n-butylphthalate mg/kg dry 100,000 100,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

3/21/2024 3 OF 4 WESTON SAMPSON

COMMERCIAL

WORKER

CONSTRUCTION

WORKER

01/30/24 1/30/2024 1/30/2024 1/29/2024 1/29/2024 1/29/2024 1/29/2024

MEDEP REMEDIAL

ACTION GUIDELINES (RAGs)

TABLE 1

SOIL SAMPLING RESULTS

CUTLER PERMITER ROAD PROJECT

NCTAMS LANT DET, CUTLER, MAINE

TCLP TOXICITY

CHARACTERISTIC

THRESHOLD

CONCENTRATION

SAMPLE LOCATIONS

TRIP BLANK

Di-n-octylphthalate mg/kg dry 11,000 26,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Fluoranthene mg/kg dry 41,000 24,000 - <0.579 <0.560 <0.621 <0.967 <0.599 <0.580 <0.668 -

Fluorene mg/kg dry 41,000 96,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Hexachlorobenzene mg/kg dry 14 3.4 0.13 <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Hexachlorobutadiene mg/kg dry 16 17 0.5 <0.579 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Hexachlorocyclopentadiene mg/kg dry - - - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Hexachloroethane mg/kg dry 120 450 3.0 <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Indeno(1,2,3-cd)Pyrene mg/kg dry 290 1,700 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Isophorone mg/kg dry 33,000 100,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Naphthalene mg/kg dry 120 130 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Nitrobenzene mg/kg dry 110 260 2.0 <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

N-Nitroso-Di-n-Propylamine mg/kg dry 6,400 37,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

N-nitrosodiphenylamine mg/kg dry 6,400 37,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Pentachlorophenol mg/kg dry 54 340 100 <1.160 <1.120 <1.240 <1.930 <1.200 <1.160 <1.340 -

Phenanthrene mg/kg dry 23,000 72,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Phenol mg/kg dry 100,000 100,000 - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Pyrene mg/kg dry 31,000 72,000 5.0 <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

Pyridine mg/kg dry - - - <0.290 <0.280 <0.311 <0.484 <0.300 <0.290 <0.334 -

8082A Polychlorinated Biphenyls (PCB)

Aroclor 1016 mg/kg dry 70 16 - <0.06 <0.05 <0.06 <0.05 <0.06 <0.06 <0.07 -

Aroclor 1221 mg/kg dry - - - <0.06 <0.05 <0.06 <0.05 <0.06 <0.06 <0.07 -

Aroclor 1232 mg/kg dry - - - <0.06 <0.05 <0.06 <0.05 <0.06 <0.06 <0.07 -

Aroclor 1242 mg/kg dry - - - <0.06 <0.05 <0.06 <0.05 <0.06 <0.06 <0.07 -

Aroclor 1248 mg/kg dry - - - <0.06 <0.05 <0.06 <0.05 <0.06 <0.06 <0.07 -

Aroclor 1254 mg/kg dry - - - <0.06 <0.05 <0.06 <0.05 <0.06 <0.06 <0.07 -

Aroclor 1260 mg/kg dry - - - <0.06 <0.05 <0.06 <0.05 <0.06 <0.06 <0.07 -

Aroclor 1262 mg/kg dry - - - <0.06 <0.05 <0.06 <0.05 <0.06 <0.06 <0.07 -

Aroclor 1268 mg/kg dry - - - <0.06 <0.05 <0.06 <0.05 <0.06 <0.06 <0.07 -

Total PCBs mg/kg dry 13 10 ND ND ND ND ND ND ND

Classical Chemistry

Corrosivity (pH) S.U. - - - 7.89 5.79 5.98 6.37 6.04 6.09 5.90 -

Flashpoint °F - - - >200 >200 >200 >200 >200 >200 >200 -

Reactive Cyanide mg/kg - - - <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 -

Reactive Sulfide mg/kg - - - <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 -

QC: LEM 3/21/24

Notes

"-" = Not tested or no standard

"<" = Parameter not detected above the laboratory reporting limits indicated

"in" = Inches below ground surface

"FT" = Feet below ground surface

Bold values indicate parameter detected above the laboratory reporting limit

Highlighted values exceed one or more MEDEP RAG

3/21/2024 4 OF 4 WESTON SAMPSON

TABLE 2

HEAVY METALS & PCB SAMPLING RESULTS

CUTLER PERMITER ROAD: AREA G & TOWER S-7

NCTAMS LANT DET, CUTLER, MAINE

SAMPLE LOCATIONS

B-105 B-106

M05 M06 M09 M10 M07 M08 M11 M01 M02 M03 M04

PARAMETER Paint - Gray Coating Concrete Paint - Gray

Total Metals (mg/kg)

Cadmium - - <0.33 <0.33 - - <0.33 2.9 4.8 - -

Chromium - - 7.1 7 - - 12 2.5 1.5 - -

Lead - - 2.5 1.6 - - 2.8 47 77 - -

8082B PCBs (mg/kg)

Aroclor-1016 <0.096 <0.084 - - <0.10 - - - - <0.10 <0.090

Aroclor-1221 <0.096 <0.084 - - <0.10 - - - - <0.10 <0.090

Aroclor-1232 <0.096 <0.084 - - <0.10 - - - - <0.10 <0.090

Aroclor-1242 <0.096 <0.084 - - <0.10 - - - - <0.10 <0.090

Aroclor-1248 <0.096 <0.084 - - <0.10 - - - - <0.10 <0.090

Aroclor-1254 <0.096 <0.084 - - <0.10 - - - - <0.10 <0.090

Aroclor-1260 <0.096 <0.084 - - <0.10 - - - - <0.10 <0.090

Aroclor-1262 <0.096 <0.084 - - <0.10 - - - - <0.10 <0.090

Aroclor-1268 <0.096 <0.084 - - <0.10 - - - - <0.10 <0.090

Total PCBs <0.096 <0.084 <0.10 <0.10 <0.090

TCLP Lead (mg/L)

Lead - - - - - <0.10 - - - - -

Notes

"-" = Not tested or no standard

"<" = Parameter not detected above the laboratory reporting limits indicated

Bold values indicate paramater detected above the laboratory reporting limit

Highlighted values exceed one or more MEDEP RAG

100 International Drive, Suite 152, Portsmouth, NH 03801

Tel: 603.431.3937

ATTACHMENT A

LABORATORY DATA REPORTS

CERTIFICATE OF ANALYSIS

Todd Bridgeo

Weston and Sampson Engineers, Inc.

5 Centennial Drive

Peabody, MA 01960

RE: Area G S-7 (ENG23-0409)

ESS Laboratory Work Order Number: 24B0182

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.

Subcontracted Analyses

ORP, Oxidation Reduction Potential, pH, Resistivity, Resistivity - Subcontracted

CTS - Cranston, RI

ECortorreal Reviewed

Client Name: Weston and Sampson Engineers, Inc.

Client Project ID: Area G S-7 ESS Laboratory Work Order: 24B0182

CERTIFICATE OF ANALYSIS

SAMPLE RECEIPT

The following samples were received on February 06, 2024 for the analyses specified on the enclosed Chain of Custody Record.

Low Level VOA vials were frozen by the client on 1/29/24 & 1/30/24 at 16:15 on both dates.

Revision 1 March 20, 2024: This report has been revised to include corrected VOC units.

Lab Number MatrixSample Name Analysis

B-101A 1010A, 1311, 1311/6010D, 1311/7470A, 2550B, 6010D, 7.3.3.2, 7.3.4.1, 7010, 7471B, 8081B, 8082A, 8100M, 8151A, 8260D Low, 8270E, 9045, 9050A

Soil24B0182-01

B-102 1010A, 1311, 1311/6010D, 1311/7470A, 2550B, 6010D, 7.3.3.2, 7.3.4.1, 7010, 7471B, 8081B, 8082A, 8100M, 8151A, 8260D Low, 8270E, 9045, 9050A, D4327, SUB

Soil24B0182-02

B-103 1010A, 1311, 1311/6010D, 1311/7470A, 2550B, 6010D, 7.3.3.2, 7.3.4.1, 7471B, 8081B, 8082A, 8100M, 8151A, 8260D Low, 8270E, 9045, 9050A

Soil24B0182-03

B-104 1010A, 1311, 1311/6010D, 1311/7470A, 2550B, 6010D, 7.3.3.2, 7.3.4.1, 7010, 7471B, 8081B, 8082A, 8100M, 8151A, 8260D Low, 8270E, 9045, 9050A

Soil24B0182-04

B-105 1010A, 1311, 1311/6010D, 1311/7470A, 2550B, 6010D, 7.3.3.2, 7.3.4.1, 7471B, 8081B, 8082A, 8100M, 8151A, 8260D Low, 8270E, 9045, 9050A

Soil24B0182-05

B-106 1010A, 1311, 1311/6010D, 1311/7470A, 2550B, 6010D, 7.3.3.2, 7.3.4.1, 7010, 7471B, 8081B, 8082A, 8100M, 8151A, 8260D Low, 8270E, 9045, 9050A, D4327, SUB

Soil24B0182-06

B-107 1010A, 1311, 1311/6010D, 1311/7470A, 2550B, 6010D, 7.3.3.2, 7.3.4.1, 7471B, 8081B, 8082A, 8100M, 8151A, 8260D Low, 8270E, 9045, 9050A

Soil24B0182-07

Trip Blank 8260D LowSolid24B0182-08

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

CERTIFICATE OF ANALYSIS

PROJECT NARRATIVE

1311 TCLP Metals Blank Spike recovery is below lower control limit (B-).DB40714-BSD1

Mercury (79% @ 80-120%)

Relative percent difference for duplicate is outside of criteria (D+).DB40714-BSD1

Mercury (21% @ 20%)

Semi-Volatile Organic Compounds Calibration required quadratic regression (Q).D4B0179-CCV1

2,4-Dinitrophenol (80% @ 80-120%), 4,6-Dinitro-2-Methylphenol (92% @ 80-120%)

Continuing Calibration %Diff/Drift is below control limit (CD-).D4B0179-CCV1

Benzaldehyde (28% @ 20%)

Initial Calibration Verification recovery is above upper control limit (ICV+).D4B0179-CCV1

Hexachlorocyclopentadiene

Initial Calibration Verification recovery is below lower control limit (ICV-).D4B0179-CCV1

Atrazine

Blank Spike recovery is below lower control limit (B-).DB40543-BS1

Benzaldehyde (27% @ 40-140%)

Blank Spike recovery is above upper control limit (B+).DB40543-BS2

Hexachlorocyclopentadiene (186% @ 40-140%)

Blank Spike recovery is below lower control limit (B-).DB40543-BS2

Benzaldehyde (23% @ 40-140%)

Blank Spike recovery is below lower control limit (B-).DB40543-BSD1

Benzaldehyde (27% @ 40-140%)

Blank Spike recovery is above upper control limit (B+).DB40543-BSD2

Hexachlorocyclopentadiene (182% @ 40-140%)

Blank Spike recovery is below lower control limit (B-).DB40543-BSD2

Benzaldehyde (24% @ 40-140%)

Blank Spike recovery is above upper control limit (B+).DB40807-BS1

Hexachlorocyclopentadiene (180% @ 40-140%)

Blank Spike recovery is below lower control limit (B-).DB40807-BS1

Benzaldehyde (15% @ 40-140%)

Blank Spike recovery is above upper control limit (B+).DB40807-BSD1

Hexachlorocyclopentadiene (180% @ 40-140%)

Blank Spike recovery is below lower control limit (B-).DB40807-BSD1

Benzaldehyde (15% @ 40-140%)

Total Metals Blank Spike recovery is above upper control limit (B+).DB40810-BS5

Selenium (166% @ 70-129%)

Relative percent difference for duplicate is outside of criteria (D+).DB40810-BSD1

Barium (30% @ 30%)

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

CERTIFICATE OF ANALYSIS

Blank Spike recovery is above upper control limit (B+).DB40810-BSD5

Selenium (173% @ 70-129%)

End of Project Narrative.

No other observations noted.

DATA USABILITY LINKS

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Definitions of Quality Control Parameters

Semivolatile Organics Internal Standard Information

Volatile Organics Internal Standard Information

Volatile Organics Surrogate Information

Semivolatile Organics Surrogate Information

EPH and VPH Alkane Lists

185 Frances Avenue, Cranston, RI 02910-2211 Tel: 401-461-7181 Fax: 401-461-4486 http://www.ESSLaboratory.com Dependability ♦ Quality ♦ Service http://www.esslaboratory.com/pdf/du.pdf http://www.esslaboratory.com/pdf/du.pdf http://www.esslaboratory.com/pdf/svoa_i.pdf http://www.esslaboratory.com/pdf/voa_i.pdf http://www.esslaboratory.com/pdf/voa_s.pdf http://www.esslaboratory.com/pdf/svoa_s.pdf http://www.esslaboratory.com/pdf/eph_vph.pdf

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

3541 - Automated 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

6010C - ICP

6020A - 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

8260B - VOA

8270D - SVOA

8270D 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 04-1.1 - 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.

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

CERTIFICATE OF ANALYSIS

Client Sample ID: B-101A

Date Sampled: 01/30/24 10:05

ESS Laboratory Sample ID: 24B0182-01

Sample Matrix: Soil

Percent Solids: 85

Extraction Method: 3050B

Units: mg/kg dry

Total Metals

Analyte Results (MRL) MDL Method Limit Analyst Analyzed F/V BatchI/VDF

6010D 2.65 100KJB DB4081002/09/24 13:13 1 8.03 (2.23) Arsenic

6010D 2.65 100KJB DB4081002/09/24 13:13 1 19.6 (2.23) Barium

6010D 2.65 100KJB DB4081002/09/24 13:13 1 ND (0.45) Cadmium

6010D 2.65 100KJB DB4081002/09/24 13:13 1 26.7 (0.89) Chromium

6010D 2.65 100KJB DB4081002/09/24 13:13 1 16.8 (4.46) Lead

7471B 0.68 40AFV DB4081502/08/24 16:11 1 ND (0.034) Mercury

7010 2.65 100KJB DB4081002/16/24 18:20 10 ND (4.46) Selenium

6010D 2.65 100KJB DB4081002/09/24 13:13 1 ND (0.45) Silver

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

CERTIFICATE OF ANALYSIS

Client Sample ID: B-101A

Date Sampled: 01/30/24 10:05

ESS Laboratory Sample ID: 24B0182-01

Sample Matrix: Soil

Percent Solids: 85

Extraction Method: 3005A_TCLP

Units: mg/L

1311 TCLP Metals

Analyte Results (MRL)

TCLP

MDL Method Limit Analyst Analyzed F/V BatchI/VDF

1311/6010D 50 50KJB DB4071302/08/24 21:36 1 ND (0.05) Arsenic

1311/6010D 50 50KJB DB4071302/08/24 21:36 1 0.11 (0.01) Barium

1311/6010D 50 50KJB DB4071302/08/24 21:36 1 ND (0.005) Cadmium

1311/6010D 50 50KJB DB4071302/08/24 21:36 1 ND (0.02) Chromium

1311/6010D 50 50KJB DB4071302/08/24 21:36 1 ND (0.05) Lead

1311/7470A 20 40AFV DB4071402/08/24 16:29 1 ND (0.0002) Mercury

1311/6010D 50 50KJB DB4071302/08/24 21:36 1 ND (0.05) Selenium

1311/6010D 50 50KJB DB4071302/08/24 21:36 1 ND (0.01) Silver

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

CERTIFICATE OF ANALYSIS

Client Sample ID: B-101A

Date Sampled: 01/30/24 10:05

ESS Laboratory Sample ID: 24B0182-01

Sample Matrix: Soil

Prepared: 2/9/24 8:00 Analyst: MDInitial Volume: 5.4g

Final Volume: 10ml

Percent Solids: 85

Extraction Method: 5035

Units: ug/Kg dry

Volatile Organics Low Level

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

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,1,1-Trichloroethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,1,2,2-Tetrachloroethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,1,2-Trichloro-1,2,2-trifluoroethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,1,2-Trichloroethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,1-Dichloroethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,1-Dichloroethene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,2,3-Trichlorobenzene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,2,3-Trichloropropane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,2,4-Trichlorobenzene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,2,4-Trimethylbenzene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,2-Dibromo-3-Chloropropane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,2-Dibromoethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,2-Dichlorobenzene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,2-Dichloroethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,2-Dichloropropane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,3,5-Trimethylbenzene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,3-Dichlorobenzene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) 1,4-Dichlorobenzene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (109) 1,4-Dioxane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (54.7) 2-Butanone

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (54.7) 2-Hexanone

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (54.7) 4-Methyl-2-Pentanone

8260D Low MD DB40922D4B020702/09/24 12:55 1 119 (54.7) Acetone

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Benzene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Bromochloromethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Bromodichloromethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Bromoform

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (10.9) Bromomethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Carbon Disulfide

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Carbon Tetrachloride

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Chlorobenzene

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

CERTIFICATE OF ANALYSIS

Client Sample ID: B-101A

Date Sampled: 01/30/24 10:05

ESS Laboratory Sample ID: 24B0182-01

Sample Matrix: Soil

Prepared: 2/9/24 8:00 Analyst: MDInitial Volume: 5.4g

Final Volume: 10ml

Percent Solids: 85

Extraction Method: 5035

Units: ug/Kg dry

Volatile Organics Low Level

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

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (10.9) Chloroethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Chloroform

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (10.9) Chloromethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) cis-1,2-Dichloroethene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) cis-1,3-Dichloropropene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Cyclohexane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Dibromomethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (10.9) Dichlorodifluoromethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Ethylbenzene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Isopropylbenzene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Methyl acetate

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Methyl tert-Butyl Ether

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Methylcyclohexane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (27.4) Methylene Chloride

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Styrene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Tetrachloroethene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Toluene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) trans-1,2-Dichloroethene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) trans-1,3-Dichloropropene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Trichloroethene

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Trichlorofluoromethane

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (10.9) Vinyl Chloride

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (5.5) Xylene O

8260D Low MD DB40922D4B020702/09/24 12:55 1 ND (10.9) Xylene P,M

%Recovery Qualifier Limits

70-13098 %Surrogate: 1,2-Dichloroethane-d4

70-13094 %Surrogate: 4-Bromofluorobenzene

70-13097 %Surrogate: Dibromofluoromethane

70-130103 %Surrogate: Toluene-d8

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

CERTIFICATE OF ANALYSIS

Client Sample ID: B-101A

Date Sampled: 01/30/24 10:05

ESS Laboratory Sample ID: 24B0182-01

Sample Matrix: Soil

Prepared: 2/6/24 17:15 Analyst: TJInitial Volume: 20.4g

Final Volume: 1ml

Percent Solids: 85

Extraction Method: 3546

Units: ug/Kg dry

Semi-Volatile Organic Compounds

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

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (29) 1,1-Biphenyl

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 1,2,4,5-Tetrachlorobenzene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 1-Methylnaphthalene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 2,3,4,6-Tetrachlorophenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 2,4,5-Trichlorophenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 2,4,6-Trichlorophenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 2,4-Dichlorophenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 2,4-Dimethylphenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (1160) 2,4-Dinitrophenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 2,4-Dinitrotoluene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 2,6-Dinitrotoluene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 2-Chloronaphthalene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 2-Chlorophenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 2-Methylnaphthalene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 2-Methylphenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (579) 2-Nitroaniline

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (579) 2-Nitrophenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 3,3´-Dichlorobenzidine

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 3+4-Methylphenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (579) 3-Nitroaniline

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (1160) 4,6-Dinitro-2-Methylphenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 4-Bromophenyl-phenylether

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 4-Chloro-3-Methylphenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 4-Chloroaniline

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) 4-Chloro-phenyl-phenyl ether

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (579) 4-Nitroaniline

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (1160) 4-Nitrophenol

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Acenaphthene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Acenaphthylene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Acetophenone

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Anthracene

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

CERTIFICATE OF ANALYSIS

Client Sample ID: B-101A

Date Sampled: 01/30/24 10:05

ESS Laboratory Sample ID: 24B0182-01

Sample Matrix: Soil

Prepared: 2/6/24 17:15 Analyst: TJInitial Volume: 20.4g

Final Volume: 1ml

Percent Solids: 85

Extraction Method: 3546

Units: ug/Kg dry

Semi-Volatile Organic Compounds

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

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Atrazine

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Benzaldehyde

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Benzo(a)anthracene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Benzo(a)pyrene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Benzo(b)fluoranthene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Benzo(g,h,i)perylene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Benzo(k)fluoranthene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) bis(2-Chloroethoxy)methane

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) bis(2-Chloroethyl)ether

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) bis(2-chloroisopropyl)Ether

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) bis(2-Ethylhexyl)phthalate

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Butylbenzylphthalate

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Caprolactam

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Carbazole

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Chrysene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Dibenzo(a,h)Anthracene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Dibenzofuran

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Diethylphthalate

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Dimethylphthalate

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Di-n-butylphthalate

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (579) Di-n-octylphthalate

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Fluoranthene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Fluorene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Hexachlorobenzene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Hexachlorobutadiene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (579) Hexachlorocyclopentadiene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Hexachloroethane

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Indeno(1,2,3-cd)Pyrene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Isophorone

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Naphthalene

8270E TJ DB40543D4B017902/09/24 0:06 1 ND (290) Nitrobenzene

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

CERTIFICATE OF ANALYSIS

Client Sample ID: B-101A

Date Sampled: 01/30/24 10:05

ESS Laboratory Sample ID: 24B0182-01

Sample Matrix: Soil

Prepared: 2/6/24 17:15 Analyst: TJInitial Volume: 20.4g

Final…