Atch 3 Fill Analysis Results AE Samples.pdf

6401 Golden Triangle Drive, Suite 304 Telephone: (202) 832-1433 Greenbelt, MD 20770

Industrial Hygiene • Site Safety • Environmental Consulting

June 23, 2021

Mr. Gary Calligaro, RA Project Manager

JACOBS/EWING COLE JV

9191 Jamaica Street Englewood, CO 80112

Subject: Contaminated Soil Investigation – Area L Staged Soil Piles from the Cyber and Engineering Academic Center (CEAC) Project at the United States Military Academy, West Point, New York Task Order Number 149001069; Master Agreement #:ACOEGLOB-I17-0001

Dear Mr. Calligaro, Per your request, Global Consulting, Inc. (GCI) is assisting the Jacobs / EwingCole Joint Venture (JV) investigate potential soil contamination issues associated with the Cyber & Engineering Academic Center (CEAC) project at the United States Military Academy in West Point, New York in support of the US Army Corps of Engineers (USACE). On or about March 10, 2021, the potential soil contamination issue was brought to the attention of the US Military Academy at West Point and USACE by the site development contractor, Dobco, Inc. of Wayne, New Jersey. GCI conducted an initial site sampling of a soil pile and disturbed native soils located on May 10, 2021 at the CEAC project site. The results of that sampling event were provided in GCI’s draft report entitled “Contaminated Soil Investigation – Cyber and Engineering Academic Center (CEAC) Project at the United States Military Academy, West Point, New York” dated May 25, 2021.

PROJECT DESCRIPTION

GCI was tasked with sampling three soil piles that had been removed from the CEAC site, transported to Area L, and stockpiled prior to reuse, recycling, and/or disposal to determine if contamination was present in accordance with New York State regulations under Title 6 of the Official Compilation of Codes, Rules and Regulations of the State of New York Parts 371 – 375 (6 NYCRR Parts 371 – 375) and NYS DEC Commissioner Policy #51, “Soil Cleanup Guidance” (CP-51).

The ultimate goal of this investigation was to assess the soil and overburden materials for potential contaminants that would preclude off-site disposal as “clean fill” or to identify the concentrations of contaminants of concern to determine the recommended treatment or disposal options in accordance with the NYS DEC Division of Environmental Remediation (DER) requirements.

The surficial soils, often referred to as overburden, were removed from the underlying bedrock at the CEAC project site prior to blasting and removal of the bedrock. Dobco prepared three

NOTE: See sample results for Staged Soil Pile #3, tables highlighted in yellow.

jeffrey.l.sanbor3786 Highlight

Industrial Hygiene • Site Safety • Environmental Consulting

Mr. Gary Calligaro, RA CEAC Contaminated Soil Investigation June 23, 2021 stockpiles of soil for testing from the area surrounding the four former residences (Barracks 5, 6, 7, & 8), the upper and lower parking lot areas, and the remainder of the site. The three soil piles were identified by the USACE as Soil Pile #1 (largest), Soil Pile #2 (middle), and Soil Pile #3. The estimated volume of soil in all three piles was 12,170 cubic yards (cy). The volume in each of the piles was estimated at 4,170 cy, 3,000 cy, and 5,000 cy, for Stage Soil Piles 1, 2, and 3 respectively.

The following diagram shows the layout of the soil pile area with the approximate location of the excavation pits to collect soil samples.

Figure 1. Area L Soil Piles showing Excavation Locations

FIELD ASSESSMENT

On May 10, 2021, GCI arrived at Area L to complete sampling and assessment of the soil piles assembled from the overburden of the CEAC site. The plan included sampling of two of the smaller piles, however equipment failure on the second day precluded sampling of Staged Soil Pile #2. On May 17, GCI returned to complete the sampling of Staged Soil Pile #2 and on May 18 and May 19, 2021, GCI completed sampling of Staged Soil Pile #3. During the sampling event, the USACE notified GCI of their naming convention as shown in Figure 1.

CEAC Contaminated Soil Investigation June 23, 2021

Industrial Hygiene • Site Safety • Environmental Consulting

The soil piles were comprised of overburden stripped from the CEAC site including native soils with large rocks, bricks, and other construction and demolition debris. Dobco provided an excavator to develop test pits in the areas denoted in Figure 1. The excavator was able to complete test pits to a maximum depth of approximately 20 to 22 feet below the surface of the soil pile. The excavated soil was screened using a RAE Systems by Honeywell MiniRAE 3000 handheld VOC (Volatile Organic Compound) photoionization detector outfitted with a 10.6 eV ultraviolet lamp. The unit was calibrated according to manufacturer’s procedures using a 100 parts per million (ppm) isobutylene gas standard. GCI collected soil samples from every two to three feet below the surface of each pile and composited the samples into one sample per excavation pit. Laboratory samples were collected from the individual excavation samples or from a composite of all excavation samples as appropriate.

The following tables provides a summary of the data for each excavation completed by pile:

Table 1 – Excavation Data Summary – Staged Soil Pile #1

Excavation Number

Depth (Feet below pile surface)

Maximum

PID

Reading (ppm)

Maximum

PID

Reading Depth (feet below pile surface)

PID

Reading 30-min after completion

1 20-22 49.8 15-18 34.0 2 15-18 3.9 12-15 61.6 3 18-20 3.6 18-20 50.0 4 15-18 26.4 15-18 52.2 5 12-15 0.0 All 58.6 6 12-15 0.0 All 18.9 7 18-20 0.0 All 40.4

June 23, 2021

Table 2 – Excavation Data Summary – Staged Soil Pile #2

Excavation Number

Depth (Feet below pile surface)

Maximum

PID

Reading (ppm)

Maximum

PID

Reading Depth (feet below pile surface)

PID

Reading 30-min after completion

1 20-22 1.1 10-12 25.2 2 20-22 3.6 0-2 50.0 3 20-22 0.0 All 56.0 4 15-18 20.1 8-10 49.8 5 20-22 2.1 12-14 115.2 6 20-22 19.4 2-4 120.1

Table 3 – Excavation Data Summary – Staged Soil Pile #3

Excavation Number

Depth (Feet below pile surface)

Maximum

PID

Reading (ppm)

Maximum

PID

Reading Depth (feet below pile surface)

PID

Reading 30-min after completion

1 10-12 0.0 All 31.6 2 8-10 0.0 All 78.5 3 12-13 0.0 All 75.5 4 12-13 0.0 All 77.7 5 20-22 0.0 All 78.7 6 20-22 0.0 All 93.6 7 20-22 0.1 18-20 73.7 8 20-22 0.0 All 75.4 9 20-22 1.7 14-16 43.0

10 18-21 0.0 All 133.9 11 21-23 0.0 All 115.8 12 21-23 0.1 18-20 75.6

The soil borings were completed to varying depths below the surface of the pile until the bottom of the pile was reached or until the excavator bucket could not be advanced (e.g., refusal).

Refusal is the point at which the machinery cannot be advanced any further because of a subsurface impediment. The soil from each bucket strata was screened using the PID and jeffrey.l.sanbor3786 Highlight jeffrey.l.sanbor3786 Highlight samples were composited into a resealable food storage bag. The collected soil sample was sealed after completion of the excavation and screened approximately 30 minutes after collection and then the soil sample bag was placed on ice inside a portable cooler.

Analysis of the soil samples was completed by Eurofins Lancaster Laboratory, accredited pursuant to the NYSDOH Environmental Laboratory Accreditation Program (ELAP) for the parameters analyzed. Samples were placed in laboratory supplied sample containers with the appropriate preservative for the analyses already added. The sample containers were labeled, placed in coolers, and packed on ice for transportation to the laboratory under strict chain of custody procedures. Discrete soil samples were collected from each excavation for analysis by EPA Method SW-846-8260D for TCL VOCs SOMO1.2, along with a composite sample from all excavations per pile. The sample analysis included the following parameters:

Parameter Methodology Moisture Content Lab SOP Percent Solid Lab SOP Ignitability 1030 Corrosivity Lab SOP Reactivity Lab SOP pH at 25C - Soil 9045 Paint Filter Testing 9095A Elemental Metals, Total EPA SW-846 6020 PCBs EPA SW-846 8082A Volatile Organic Compounds EPA SW-846 8260C Semi-Volatile Organics EPA SW-846 8270D Organochlorine Pesticides EPA SW-846 8081B Herbicides EPA SW-846 8151A 1,4-dioxane EPA SW-846 8260C Chromium, hexavalent EPA SW-846 3060 Chromium, trivalent EPA Method 1639 Mercury EPA SW-846 7473 TCLP (VOC, SVOC, Pests, Herbs and/or Metals) EPA SW-846 1311, 3510C, 8270C

TPH DRO, GRO, ORO, MTBE EPA SW-846 8015C

TPH (SGT-HEM) EPA 1664B Modified / 9071BM Dioxin/Furan EPA SW-846 8290A PFAS/PFOS/PFOA Compounds EPA SW-846 METHOD 8329 Total Cyanide EPA SW-846 9010C Distill

NOTE: Further testing may be required for disposal.

ANALYTICAL RESULTS

GCI evaluated the CEAC soils in accordance with the regulations and guidance of New York State Department of Environmental Conservation (DEC) remedial programs administered by the Division of Environmental Remediation (DER). These include the Inactive Hazardous Waste Disposal Site Remedial Program, known as the State Superfund Program (SSF); Brownfield Cleanup Program (BCP); Environmental Restoration Program (ERP); and Voluntary Cleanup Program (VCP); and petroleum release clean-up policies such as CP-51, known as Commissioner Policy 51 - Soil Cleanup Guidance.

• CP-51: Soil Cleanup Guidance Policy (PDF, 21 pages, 201 KB) - Issued 10/21/2010; Effective 12/03/2010;

• Division of Environmental Remediation (DER-10) / Technical Guidance for Site Investigation and Remediation- Issued 08/11/2010; Effective 09/17/2010;

• DER-31: Green Remediation (PDF, 9 pages, 104 KB) - Issued 08/11/2010; Effective 09/17/2010;

• Guidelines for Sampling and Analysis of PFAS (PDF, 33 pages, 551 KB) - Issued 01/06/2021;

• 6NYCRR Part 370: Hazardous Waste Management System-General;

• 6NYCRR Part 371: Identification and Listing Of Hazardous Wastes;

• 6NYCRR Part 375: Environmental Remediation Programs; and

• US EPA 40 CFR Section 261 et seq.

New York State has established criteria for evaluating potential contamination in soils from areas associated with potential contamination from past use. Soil cleanup objectives are included in the Brownfield Cleanup Program regulation (Title 6, New York Codes Rules and Regulations, Part 375). The Remedial Program criteria are based upon classification of the soils to be reused, remediated, incorporated into a beneficial use, or treated to destroy the contaminants. Based upon the laboratory analysis of the soil, NYS provides for the following classification:

“(1) “Unrestricted use” which is a use without imposed restrictions, such as environmental easements or other land use controls; or

(2) “Restricted use” which is a use with imposed restrictions, such as environmental easements, which as part of the remedy selected for the site require a site management plan which relies on institutional controls or engineering controls to manage exposure to contamination remaining at a site.

(3) Restricted uses include:

(i) “Residential use” which is a land use category which allows a site to be used for any use other than raising livestock or producing animal products for human consumption.

Restrictions on the use of ground water are allowed, but no other institutional or engineering control relative to the Track 2 residential soil cleanup objectives, such as a site management plan, would be allowed. This is the land use category which will be considered for single family housing;

(ii) “Restricted-residential use” which is a land use category which shall only be considered when there is common ownership or a single owner/managing entity of the site.

Restricted-residential use:

(a) shall, at a minimum, include restrictions which prohibit:

(1) any vegetable gardens on a site, although community vegetable gardens may be considered with Department approval; and

(2) single family housing; and

(b) includes active recreational uses, which are public uses with a reasonable potential for soil contact;

(iii) “Commercial use” which is a land use for the primary purpose of buying, selling or trading of merchandise or services. Commercial use includes passive recreational uses, which are public uses with limited potential for soil contact; and

(iv) “Industrial use” which is a land use for the primary purpose of manufacturing, production, fabrication or assembly process and ancillary services. Industrial uses do not include any recreational component.”

NYS DEC has two further restrictive classifications for the protection of groundwater or ecological protection that can be required if the soil use may impact those resources.

GCI has evaluated the laboratory data to assess the soil hazardous waste characteristics and compared the data to the NYS DEC Part 375 Soil Cleanup Objectives (SCOs) and Supplemental Soil Cleanup Objectives (SSCOs) provided in Attachment A to evaluate and identify any contaminants of concern pertaining to the disposition of the soil. For compounds not identified within the NYS DEC SCOs/SSCOs, GCI utilized data provided by the EPA and other sources. The full laboratory reports are provided in Attachment B, C, and D for each soil pile.

The following summaries identify only the contaminants of concern identified within the sample points evaluated. Please refer to the laboratory reports for the full list of chemicals that were tested in each analysis.

Table 1A – General Chemistry Findings – Staged Soil Pile #1 (USACE Pile #3) Analyte Result Comment Percent Moisture 9.1 – 17.1% Normal Percent Solids 82.9 – 90.1% Normal Flashpoint >187 Not Ignitable Hexavalent Chromium (Cr +6) Non-Detect (ND) Normal Trivalent Chromium (Cr +3) 19 mg/Kg Normal Cyanide, Reactive ND Not Reactive Sulfide, Reactive ND Not Reactive SGT-HEM Oil & Grease 1,200 mg/Kg Above Paint Filter No free draining liquids Normal pH 7.9 Normal Temperature 20.0°C Normal Corrosivity No Not Corrosive

Table 1B – General Chemistry Findings – Staged Soil Pile #2 (USACE Pile #2)

Percent Moisture 13.4 – 18.5% Normal Percent Solids 81.5 – 86.6% Normal Flashpoint >187 Not Ignitable Hexavalent Chromium (Cr +6) Non-Detect (ND) Normal Trivalent Chromium (Cr +3) 14 mg/Kg Normal Cyanide, Reactive ND Not Reactive Sulfide, Reactive ND Not Reactive SGT-HEM Oil & Grease 420 mg/Kg Below Paint Filter No free draining liquids Normal pH 7.8 Normal Temperature 19.9 °C Normal Corrosivity No Not Corrosive

Table 1C – General Chemistry Findings – Staged Soil Pile #3 (USACE Pile #1)

Percent Moisture 8.8 - 16.5 Normal Percent Solids 83.5 - 91.2 Normal Flashpoint >187 Not Ignitable Hexavalent Chromium (Cr +6) Non-Detect (ND) Normal Trivalent Chromium (Cr +3) 12 mg/Kg Normal Cyanide, Reactive ND Not Reactive Sulfide, Reactive ND Not Reactive SGT-HEM Oil & Grease 610 Above Paint Filter No free draining liquids Normal pH 8.3 Normal Temperature 20.1°C Normal Corrosivity No Not Corrosive

All general chemistry results were within normal ranges for the analysis performed with the exception of oil and grease which was above the recommended 500 ppm.

Table 2A – Gasoline and Diesel Range Organics – Staged Soil Pile #1 (USACE Pile #3)

Analyte Method Result Recommended Limit Comment

Gasoline Range Organics (GRO) 8015D Not Sampled 50 mg/Kg Below

Diesel Range Organics (DRO) (C10-C28)

8015D 150 100 mg/Kg Above

DRO >C28-C40 8015D 220 100 mg/Kg Above

Table 2B – Gasoline and Diesel Range Organics – Staged Soil Pile #2 (USACE Pile #2)

Analyte Method Result Recommended Limit Comment

Gasoline Range Organics (GRO) 8015D ND 50 mg/Kg Below

Diesel Range Organics (DRO) (C10-C28)

8015D 200 100 mg/Kg Above

DRO >C28-C40 8015D 450 100 mg/Kg Above

Table 2C – Gasoline and Diesel Range Organics – Staged Soil Pile #3 (USACE Pile #1)

Analyte Method Result Recommended Limit Comment

Gasoline Range Organics (GRO) 8015D 1.4 – 2.0 mg/Kg 50 mg/Kg Below

Diesel Range Organics (DRO) (C10-C28)

8015D 180 100 mg/Kg Above

DRO >C28-C40 8015D 350 100 mg/Kg Above The gasoline range organics (GRO) sample bottles from the laboratory were missing, therefore the sample was not collected during sampling of Staged Soil Pile #1 (USACE Pile #3). The other soil piles were below the recommended limit. All samples for diesel range organics (DRO) in the carbon chain lengths of C10 to C28 and greater than C28 to C40 were above the recommended limits indicating the presence of DRO in the samples. This sampling methodology does not differentiate the chemicals identified, only the presence of carbon chain chemicals within those criteria.

Table 3A – Volatile Organic Compounds - Method: 8260D (GC/MS) – Staged Soil Pile #1 (USACE Pile #3)

VOC

Contaminants Identified

CAS

Number

Concentration Range (ug/Kg or ppb)

NYS DEC Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

Toluene 108-88-3 NR - 3.5 700 Below 2-Hexanone (methyl butyl ketone, MBK)

591-78-6 NR - 2.1 100,000 Below

Acetone 67-64-1 27 - 190 50 Above Limit Benzene 71-43-2 NR - 2.1 60 Below Carbon disulfide 75-15-0 NR - 1.2 100,000 Below 2-Butanone 78-93-3 NR - 2.2 100,000 Below Methyl acetate 79-20-9 NR - 25 100,000 Below Isopropylbenzene 98-82-8 NR - 12 2,300 Below

Table 3B – Volatile Organic Compounds - Method: 8260D (GC/MS) – Staged Soil Pile #2 (USACE Pile #2)

VOC

Contaminants Identified

CAS

Number

Concentration Range (ug/Kg or ppb)

NYS DEC Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

Toluene 108-88-3 0.85 - 1.9 700 Below 2-Hexanone 591-78-6 1.8 100,000 Below Acetone 67-64-1 96 - 670 50 Above Limit Benzene 71-43-2 0.71 - 1.6 60 Below Carbon disulfide 75-15-0 0.71 - 15 100,000 Below 2-Butanone 78-93-3 14 - 250 100,000 Below Methyl acetate 79-20-9 0.84 - 260 100,000 Below Isopropylbenzene 98-82-8 0.43 100

Gasoline Range Organics ND 50 mg/Kg Below

Table 3C – Volatile Organic Compounds - Method: 8260D (GC/MS) – Staged Soil Pile #3 (USACE Pile #1)

VOC

Contaminants Identified

CAS

Number

Concentration Range (ug/Kg or ppb)

NYS DEC Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

Toluene 108-88-3 NR - 3.0 700 Below Acetone 67-64-1 35 - 120 50 Above Benzene 71-43-2 NR - 3.0 60 Below Chloromethane 74-87-3 NR - 1.4 100,000 Below Carbon disulfide 75-15-0 0.57 - 2.8 100,000 Below 2-Butanone 78-93-3 2.2 - 19 100,000 Below Methyl acetate 79-20-9 NR - 11 100,000 Below

Acetone was detected in each soil pile above the regulatory limit.

Highlight

Table 4A – Semi Volatile Organic Compounds - Method: 8270D (GC/MS) Staged Soil Pile #1 (USACE Pile #3)

SVOC Contaminants Identified

CAS

Number

Concentration (ug/Kg or ppb)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

1,1’-Biphenyl 92-52-4 710 60,000 Below

2-Methylnaphthalene 91-57-6 2,000 SSCO for Residential

410 ppb Above

4-Methylphenol (p-Cresol)

106-44-5 280 330 Below

Acenaphthene 83-32-9 1,300 20,000 Below Acenaphthylene 208-96-8 3,600 100,000 Below Anthracene 120-12-7 11,000 100,000 Below Benzo[a]anthracene 56-55-3 12,000 1,000 Above Benzo[a]pyrene 50-32-8 7,800 1,000 Above Benzo[b]fluoranthene 205-99-2 8,400 1,000 Above Benzo[g,h,i]perylene 191-24-2 3,300 100,000 Below Benzo[k]fluoranthene 207-08-9 3,300 800 Above Carbazole 86-74-8 4,100 100,000 Below Chrysene 218-01-9 9,100 1,000 Above Dibenz(a,h)anthracene 53-70-3 1,300 330 Above

Dibenzofuran 132-64-9 5,500 7,000

(6.2 ppm SSCO PGW) Below

Fluoranthene 206-44-0 22,000 100,000 Below Fluorene 86-73-7 9,100 30,000 Below Indeno[1,2,3-cd]pyrene 193-39-5 3,600 500 Above N-Nitrosodiphenylamine 86-30-6 140 100,000 Below Naphthalene 91-20-3 1,800 12,000 Below Phenanthrene 85-01-8 39,000 100,000 Below Phenol 108-95-2 280 330 Below Pyrene 129-00-0 17,000 100,000 Below

Table 4B – Semi Volatile Organic Compounds - Method: 8270D (GC/MS)

SVOC Contaminants Identified

CAS

Number

Concentration (ug/Kg or ppb)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

2-Methylnaphthalene 91-57-6 120 SSCO for Residential 410 ppb Above

4-Methylphenol (p-Cresol) 106-44-5 110 330 Below

Acenaphthene 83-32-9 96 20,000 Below Acenaphthylene 208-96-8 770 100,000 Below Anthracene 120-12-7 810 100,000 Below Benzaldehyde 100-52-7 3,700 100,000 Below Benzo[a]anthracene 56-55-3 3,900 1,000 Above Benzo[a]pyrene 50-32-8 4,600 1,000 Above Benzo[b]fluoranthene 205-99-2 2,100 1,000 Above Benzo[g,h,i]perylene 191-24-2 1,400 100,000 Below Benzo[k]fluoranthene 207-08-9 210 800 Below Carbazole 86-74-8 3,000 100,000 Below Chrysene 218-01-9 740 1,000 Below Dibenz(a,h)anthracene 53-70-3 210 330 Below Fluoranthene 206-44-0 5,300 100,000 Below Fluorene 86-73-7 210 30,000 Below Indeno[1,2,3-cd]pyrene 193-39-5 2,200 500 Above Naphthalene 91-20-3 340 12,000 Below Phenanthrene 85-01-8 1,700 100,000 Below Pyrene 129-00-0 4,700 100,000 Below

Table 4C – Semi Volatile Organic Compounds - Method: 8270D (GC/MS)

SVOC Contaminants Identified

CAS

Number

Concentration (ug/Kg or ppb)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

2-Methylnaphthalene 91-57-6 190 SSCO Residential 410 ppb Above

Acenaphthene 83-32-9 320 20,000 Below Acenaphthylene 208-96-8 980 100,000 Below Anthracene 120-12-7 1,800 100,000 Below Benzo[a]anthracene 56-55-3 4,600 1,000 Above Benzo[a]pyrene 50-32-8 4,700 1,000 Above Benzo[b]fluoranthene 205-99-2 4,700 1,000 Above Benzo[g,h,i]perylene 191-24-2 2,700 100,000 Below Benzo[k]fluoranthene 207-08-9 2,400 800 Above Carbazole 86-74-8 470 100,000 Below Chrysene 218-01-9 3,800 1,000 Above Dibenz(a,h)anthracene 53-70-3 850 330 Above

Dibenzofuran 132-64-9 700 7,000 (6.2 ppm SSCO PGW)

Below

Fluoranthene 206-44-0 8,800 100,000 Below Fluorene 86-73-7 880 30,000 Below Indeno[1,2,3-cd]pyrene 193-39-5 2,600 500 Above Naphthalene 91-20-3 490 12,000 Below Phenanthrene 85-01-8 4,400 100,000 Below Pyrene 129-00-0 7,100 100,000 Below

The semi-volatile samples contained various contaminants of concern above the regulatory limits. GCI believes that these contaminants are a result of historical use (burned wood residues) and asphalt mixed into the soils. For certain non-residential use sites (i.e., commercial or industrial use sites) where the SCOs are not applicable, the DEC may approve a remedial program which achieves a soil cleanup level of 500 parts per million (ppm) for total PAHs for all subsurface soil. The 500 ppm soil cleanup level is in lieu of achieving all of the PAH-specific SCOs in 6 NYCRR 375-6. For purposes of this provision, subsurface soil shall mean the soil beneath permanent structures, pavement, or similar cover systems; or at least one foot of soil cover (which must meet the applicable SCOs). The DEC requires institutional controls (e.g., an environmental easement) along with a site management plan when this soil cleanup level is approved and jeffrey.l.sanbor3786 Highlight implemented at a site. This cleanup level is determined to be feasible and protective based on DEC’s experience in its various remedial programs since it was first utilized in 1992.

Table 5A - Organochlorine Pesticides - Method: 8081B (GC) Staged Soil Pile #1 (USACE Pile #3)

Pesticide Contaminants Identified

CAS

Number

Concentration Range (ug/Kg or ppb)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment alpha-Chlordane 5103-71-9 2.9 94 Below gamma-Chlordane 58-89-9 4.0 100 Below p,p'-DDD 72-54-8 4.8 3.3 Above p,p'-DDE 72-55-9 48 3.3 Above p,p'-DDT 50-29-3 60 3.3 Above

Table 5B - Organochlorine Pesticides - Method: 8081B (GC)

Pesticide Contaminants Identified

CAS

Number

Concentration Range (ug/Kg or ppb)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment gamma-BHC (Lindane) 58-89-9 1.4 100 Below p,p'-DDD 72-54-8 4.3 3.3 Above p,p'-DDE 72-55-9 33 3.3 Above p,p'-DDT 50-29-3 41 3.3 Above

Table 5C - Organochlorine Pesticides - Method: 8081B (GC)

Pesticide Contaminants Identified

CAS

Number

Concentration Range (ug/Kg or ppb)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

Alpha-Chlordane 5103-71-9 1.5 94 Below p,p'-DDD 72-54-8 22 3.3 Above p,p'-DDE 72-55-9 27 3.3 Above p,p'-DDT 50-29-3 30 3.3 Above

The source of the pesticides is most likely from historically treated building materials or grounds associated with the former barrack residences. Much of the soil piles originated in areas that jeffrey.l.sanbor3786 Highlight may have been historically treated and there was some construction and demolition wastes intermixed into site soils. No pesticides were detected in the TCLP Pesticide analysis (Method:

8081B - TCLP Pesticides – TCLP) for Endrin, gamma-BHC (Lindane), Heptachlor, Heptachlor epoxide, Methoxychlor. and Toxaphene.

Table 6A - Herbicides- Method: 8151A (GC) Staged Soil Pile #1 (USACE Pile #3)

Herbicide Contaminants Identified

CAS

Number

Concentration Range (ug/Kg or ppb)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

2,4-DB

(2,4-Dinitrobenzonitrile) 94-82-6 12 190,000 Below

Table 6B - Herbicides- Method: 8151A (GC)

Herbicide Contaminants Identified

CAS

Number

Concentration Range (ug/Kg or ppb)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

2,4-DB

(2,4-Dinitrobenzonitrile) 94-82-6 14 190,000 Below

Table 6C - Herbicides- Method: 8151A (GC)

Herbicide Contaminants Identified

CAS

Number

Concentration Range (ug/Kg or ppb)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

2,4-DB

(2,4-Dinitrobenzonitrile) 94-82-6 16 190,000 Below

The one herbicide contaminant of concern identified was well below the USEPA Regional Screening Levels (RSLs) Noncarcinogenic Soil Level for a child. No NYS DEC Unrestricted Use value was available for comparison. No herbicides were detected in the TCLP Herbicide analysis (Method: 8151A - TCLP Herbicides - TCLP) for2,4 – D, and Silvex (2,4,5-TP).

https://www.epa.gov/risk/forms/regional-screening-levels-rsls-contact-us https://www.epa.gov/risk/forms/regional-screening-levels-rsls-contact-us jeffrey.l.sanbor3786 Highlight

Table 7A - Metals - Method: 6020B (ICP/MS) – Staged Soil Pile #1 (USACE Pile #3)

TCLP Metal Contaminants Identified

CAS

Number

TCLP

Concentration Result (mg/L)

US EPA

RCRA

Hazardous Waste TCLP Limit (mg/L)

ICP/MS

Concentration (mg/Kg or ppm)

NYS DEC

Regulatory Limit for Unrestricted Use (mg/Kg or ppm)

Comment

Aluminum 7429-90-5 --- --- 15,000 SSCO PER 10,000 Above

Antimony 7440-36-0 --- --- 0.35 10,000* Below Arsenic 7440-38-2 ND 5.0 6.9 13 Below Barium 7440-39-3 0.36 100 83 350 Below Beryllium 7440-41-7 --- --- 0.54 7.2 Below Cadmium 7440-43-9 0.0032 1.0 0.19 2.5 Below

Calcium 7440-70-2 --- --- 26,000 SSCO PER 10,000 Above

Chromium, Total 7440-47-3 ND 5.0 19 30 Below

Chromium, Hexavalent (VI)

18540-29- 9 --- --- 1 Below

Chromium, Trivalent (III)

16065-83- 1 --- --- 30 Below

Cobalt 7440-48-4 --- --- 7.9 10,000* Below Copper 7440-50-8 --- --- 27 50 Below Cyanide, Total 57-12-5 --- --- ND 27 Below

Iron 7439-89-6 --- --- 23,000

SSCO

Residential 2,000

Above

Lead 7439-92-1 0.050 5.0 99 63 Below/Above Magnesium 7439-95-4 --- --- 16,000 10,000* Above Manganese 7439-96-5 --- --- 410 1,600 Below Mercury 7439-97-6 0.00011 0.2 0.17 0.18 Below Nickel 7440-02-0 --- --- 16 30 Below Potassium 7440-09-7 --- --- 2,300 10,000* Below Selenium 7782-49-2 ND 1.0 0.43 3.9 Below Silver 7440-22-4 ND 5.0 0.10 2 Below Sodium 7440-23-5 --- --- 540 10,000* Below Thallium 7440-28-0 --- --- 0.21 10,000* Below Zinc 7440-66-6 --- --- 90 109 Below Vanadium 7440-62-2 --- --- 33 10,000* Below

Table 7B - Metals - Method: 6020B (ICP/MS) – Staged Soil Pile #2 (USACE Pile #2)

Contaminants Identified

CAS

Number

TCLP

Concentration Result (mg/L)

US EPA

RCRA

Hazardous Waste TCLP Limit (mg/L)

ICP/MS

Concentration (mg/Kg or ppm)

NYS DEC

Regulatory Limit for Unrestricted Use (mg/Kg or ppm)

Comment

Aluminum 7429-90-5 NR --- 17,000 SSCO PER 10,000 Above

Antimony 7440-36-0 NR --- 0.11 10,000* Below Arsenic 7440-38-2 NR 5.0 4.2 13 Below Barium 7440-39-3 0.29 100 54 350 Below Beryllium 7440-41-7 NR --- 0.47 7.2 Below Cadmium 7440-43-9 NR 1.0 0.17 2.5 Below

Calcium 7440-70-2 NR --- 8,000 SSCO PER 10,000 Below

Chromium, Total 7440-47-3 0.0019 5.0 14 30 Below Chromium, Hexavalent (VI) 18540-29-9 --- 0 1 Below

Chromium, Trivalent (III) 16065-83-1 --- 14 30 Below

Cobalt 7440-48-4 NR --- 8.8 10,000* Below Copper 7440-50-8 NR --- 21 50 Below Cyanide, Total --- NR 27 Below

Iron 7439-89-6 NR --- 29,000

SSCO

Residential 2,000

Above

Lead 7439-92-1 0.017 5.0 46 63 Below Magnesium 7439-95-4 NR --- 6,500 10,000* Below Manganese 7439-96-5 NR --- 300 1,600 Below Mercury 7439-97-6 NR 0.2 0.14 0.18 Below Nickel 7440-02-0 NR --- 16 30 Below Potassium 7440-09-7 NR --- 1,400 10,000* Below Selenium 7782-49-2 NR 1.0 0.44 3.9 Below Silver 7440-22-4 NR 5.0 0.048 2 Below Sodium 7440-23-5 NR --- 500 10,000* Below Thallium 7440-28-0 NR --- 0.17 10,000* Below Zinc 7440-66-6 NR --- 79 109 Below Vanadium 7440-62-2 NR --- 40 10,000* Below

Table 7C - Metals - Method: 6020B (ICP/MS) – Staged Soil Pile #3 (USACE Pile #1)

Contaminants Identified

CAS

Number

TCLP

Concentration Result (mg/L)

US EPA

RCRA

Hazardous Waste TCLP Limit (mg/L)

ICP/MS

Concentration (mg/Kg or ppm)

NYS DEC

Regulatory Limit for Unrestricted Use (mg/Kg or ppm)

Comment

Aluminum 7429-90-5 --- --- 9,900 SSCO PER 10,000 Below

Antimony 7440-36-0 --- --- 0.19 10,000* Below Arsenic 7440-38-2 ND 5.0 8.0 13 Below Barium 7440-39-3 0.26 100 55 350 Below Beryllium 7440-41-7 --- 0.35 7.2 Below Cadmium 7440-43-9 ND 1.0 0.49 2.5 Below

Calcium 7440-70-2 --- 11,000 SSCO PER 10,000 Above

Chromium, Total 7440-47-3 0.0019 5.0 12 30 Below

Chromium, Hexavalent (VI)

18540-29- 9 --- ND 1 Below

Chromium, Trivalent (III)

16065-83- 1 --- 12 30 Below

Cobalt 7440-48-4 --- 4.7 10,000* Below Copper 7440-50-8 --- 19 50 Below Cyanide, Total 57-12-5 --- ND 27 Below

Iron 7439-89-6 --- 27,000

SSCO

Residential 2,000

Above

Lead 7439-92-1 ND 5.0 19 63 Below Magnesium 7439-95-4 --- 7,200 10,000* Below Manganese 7439-96-5 --- 320 1,600 Below Mercury 7439-97-6 0.000084 0.2 0.11 0.18 Below Nickel 7440-02-0 --- 9.8 30 Below Potassium 7440-09-7 --- 1,100 10,000* Below Selenium 7782-49-2 ND 1.0 0.58 3.9 Below Silver 7440-22-4 ND 5.0 0.050 2 Below Sodium 7440-23-5 --- 720 10,000* Below Thallium 7440-28-0 --- 0.15 10,000* Below Zinc 7440-66-6 --- 56 109 Below Vanadium 7440-62-2 --- 23 10,000* Below Notes: * SCO individual metal cap is 10,000 ug/Kg;

SCO PER is Protection of Ecological Resources

NYS DEC has targeted certain metals in the assessment of soil conditions as indicated in the table above. In general, elements such as aluminum, calcium, iron, and magnesium are found in native soils and can be above the SCO naturally. Therefore, the regional soil studies must be used to determine if the concentrations identified in the samples is abnormal. According to the Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) local soil survey map, the CEAC site is underlain by the following types of native soils:

Orange County, New York (NY071) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI

HLC Hollis soils, sloping 1.2 23.3%

ROC Rock outcrop-Hollis complex, sloping

3.2 60.8%

ROD Rock outcrop-Hollis complex, 15 to 35 percent slopes

0.8 15.9%

Totals for Area of Interest 5.3 100.0% Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Web Soil Survey.

Available online at the following link: http://websoilsurvey.sc.egov.usda.gov/. Accessed [06/08/2021].

The survey identified three highly mineralized soil complexes that appear to originate from the underlying bedrock. The following mapped area of interest shows the CEAC site where the soils originated and the identified soil map units.

http://websoilsurvey.sc.egov.usda.gov/

Based upon the geology of the CEAC site, GCI does not believe that the mineral content is a contaminant from anthropogenic processes but naturally occurring.

For the contaminants of concern under NYS DEC regulations, all samples were below the regulatory limit, except for lead in the composite soil sample collected from Staged Soil Pile #1 (USACE #3). This sample was slightly elevated.

The RCRA Hazardous Waste TCLP Metals analysis (Method: 6010D - Metals (ICP) – TCLP) reported only minor concentrations of metals shown in the tables above at. concentrations below the regulatory limits.

Table 8A - Perfluoroalkyl and polyfluoroalkyl substances (PFAS), Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoic Acid (PFOA) – Staged Soil Pile #1 (USACE Pile #3)

PFAS/PFOS/PFOA

Contaminants Identified

CAS Number Concentration

Range (ng/g or ppb)

NYS DEC

Regulatory

Limit for Unrestricted

Use (ppb)

Comment

Perfluorooctanoic acid 335-67-1 0.28 0.66 Below Perfluorooctanesulfonic acid 1763-23-1 0.40 – 0.71 0.88 Below

Table 8B - Perfluoroalkyl and polyfluoroalkyl substances (PFAS), Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoic Acid (PFOA) – Staged Soil Pile #2 (USACE Pile #2)

PFAS/PFOS/PFOA

Contaminants Identified

CAS Number Concentration

Range (ng/g or ppb)

NYS DEC

Regulatory

Limit for Unrestricted

Use (ppb)

Comment

Perfluorooctanoic acid 335-67-1 0.29 0.66 Below Perfluorooctanesulfonic acid 1763-23-1 0.31 0.88 Below

Table 8C - Perfluoroalkyl and polyfluoroalkyl substances (PFAS), Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoic Acid (PFOA) – Staged Soil Pile #3 (USACE Pile #1)

PFAS/PFOS/PFOA

Contaminants Identified

CAS Number Concentration

Range (ng/g or ppb)

NYS DEC

Regulatory

Limit for Unrestricted

Use (ppb)

Comment

Perfluorooctanoic acid 335-67-1 NR - 0.27 0.66 Below Perfluorooctanesulfonic acid 1763-23-1 NR – 0.36 0.88 Below

As of October 2020, the United States Environmental Protection Agency (EPA) does not have a validated method for analysis of PFAS for media commonly analyzed under environmental remedial programs (non-potable waters, solids). In January 2021, New York State Department of Environmental Conservation’s Division of Environmental Remediation (DER) developed guidelines to ensure consistency in analysis and reporting of PFAS. As part of the sampling guideline, NYS has published a list of chemicals to be analyzed under PFAS:

Table 8D – 21 PFAS Analyte List

Group Chemical Name Abbreviation CAS Number

Perfluoroalkyl sulfonates

Perfluorobutanesulfonic acid PFBS 375-73-5 Perfluorohexanesulfonic acid PFHxS 355-46-4 Perfluoroheptanesulfonic acid PFHpS 375-92-8 Perfluorooctanesulfonic acid PFOS 1763-23-1 Perfluorodecanesulfonic acid PFDS 335-77-3

Perfluoroalkyl carboxylates

Perfluorobutanoic acid PFBA 375-22-4 Perfluoropentanoic acid PFPeA 2706-90-3 Perfluorohexanoic acid PFHxA 307-24-4 Perfluoroheptanoic acid PFHpA 375-85-9 Perfluorooctanoic acid PFOA 335-67-1 Perfluorononanoic acid PFNA 375-95-1

Perfluorodecanoic acid PFDA 335-76-2 Perfluoroundecanoic acid PFUA/PFUdA 2058-94-8 Perfluorododecanoic acid PFDoA 307-55-1 Perfluorotridecanoic acid PFTriA/PFTrDA 72629-94-8 Perfluorotetradecanoic acid PFTA/PFTeDA 376-06-7

Fluorinated Telomer Sulfonates

6:2 Fluorotelomer sulfonate 6:2 FTS 27619-97-2 8:2 Fluorotelomer sulfonate 8:2 FTS 39108-34-4

Perfluorooctane-sulfonamides Perfluroroctanesulfonamide FOSA 754-91-6

Perfluorooctane-sulfonamidoacetic acids

N-methyl perfluorooctanesulfonamidoacetic acid N-MeFOSAA 2355-31-9 N-ethyl perfluorooctanesulfonamidoacetic acid N-EtFOSAA 2991-50-6

NYS has only published guideline values for PFOA and PFOS, therefore GCI recommends comparing the analytical results for the soil against the guidance values listed above. The results indicate that the analytical results are well below the guidance values provided by DER.

Table 9A - Dioxins and Furans - Method: 8290A (HRGC/HRMS) – Staged Soil Pile #1 (USACE Pile #3)

Dioxin Contaminants Identified

CAS

Number

Concentration Range

(ug/Kg or ppb)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

1,2,3,4,6,7,8- HpCDD 35822-46-9 28 600/60,000 Below

1,2,3,4,6,7,8- HpCDF 67562-39-4 6.7 600/60,000 Below

1,2,3,4,7,8-HxCDD 39227-28-6 0.50 600/60,000 Below 1,2,3,4,7,8-HxCDF 70648-26-9 0.83 600/60,000 Below 1,2,3,4,7,8,9- HpCDF 55673-89-7 0.71 600/60,000 Below

1,2,3,6,7,8-HxCDD 57653-85-7 1.0 600/60,000 Below 1,2,3,6,7,8-HxCDF 57117-44-9 0.62 600/60,000 Below 1,2,3,7,8-PeCDF 57117-41-6 0.65 600/60,000 Below 1,2,3,7,8,9-HxCDD 19408-74-3 0.71 600/60,000 Below 1,2,3,7,8,9-HxCDF 72918-21-9 0.32 600/60,000 Below 2,3,4,6,7,8-HxCDF 60851-34-5 1.0 600/60,000 Below 2,3,7,8-TCDF 51207-31-9 0.87 600/60,000 Below OCDD 3268-87-9 640 600/60,000 Above/Below OCDF 39001-02-0 21 600/60,000 Below

Table 9B - Dioxins and Furans - Method: 8290A (HRGC/HRMS) –

Dioxin Contaminants Identified

CAS

Number

Concentration Range

(ug/Kg or ppb)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

1,2,3,4,6,7,8- HpCDD 35822-46-9 49 600/60,000 Below

1,2,3,4,6,7,8- HpCDF 67562-39-4 14 600/60,000 Below

1,2,3,4,7,8-HxCDD 39227-28-6 0.59 600/60,000 Below 1,2,3,4,7,8-HxCDF 70648-26-9 0.68 600/60,000 Below 1,2,3,4,7,8,9- HpCDF 55673-89-7 1.1 600/60,000 Below

1,2,3,6,7,8-HxCDD 57653-85-7 1.6 600/60,000 Below 1,2,3,6,7,8-HxCDF 57117-44-9 1 600/60,000 Below 1,2,3,7,8-PeCDF 57117-41-6 0.56 600/60,000 Below 1,2,3,7,8,9-HxCDD 19408-74-3 0.57 600/60,000 Below 1,2,3,7,8,9-HxCDF 72918-21-9 1.1 600/60,000 Below 2,3,4,6,7,8-HxCDF 60851-34-5 0.96 600/60,000 Below 2,3,4,7,8-PeCDF 57117-31-4 0.78 600/60,000 Below 2,3,7,8-TCDF 51207-31-9 0.16 600/60,000 Below OCDD 3268-87-9 780 600/60,000 Above/Below OCDF 39001-02-0 54 600/60,000 Below

Table 9C - Dioxins and Furans - Method: 8290A (HRGC/HRMS) –

Dioxin Contaminants Identified

CAS

Number

Concentration Range

(ng/Kg or ppt)

NYS DEC

Regulatory Limit for Unrestricted Use (ng/Kg or ppt)

Comment

1,2,3,4,6,7,8-HpCDD 35822-46-9 34 600/60,000 Below 1,2,3,4,6,7,8-HpCDF 67562-39-4 9.0 600/60,000 Below 1,2,3,4,7,8-HxCDD 39227-28-6 0.260 600/60,000 Below 1,2,3,4,7,8-HxCDF 70648-26-9 0.680 600/60,000 Below 1,2,3,4,7,8,9-HpCDF 55673-89-7 0.550 600/60,000 Below 1,2,3,6,7,8-HxCDD 57653-85-7 0.950 600/60,000 Below 1,2,3,6,7,8-HxCDF 57117-44-9 0.860 600/60,000 Below 1,2,3,7,8-PeCDF 57117-41-6 0.650 600/60,000 Below 1,2,3,7,8,9-HxCDD 19408-74-3 0.590 600/60,000 Below 1,2,3,7,8,9-HxCDF 72918-21-9 0.190 600/60,000 Below 2,3,4,6,7,8-HxCDF 60851-34-5 0.740 600/60,000 Below 2,3,4,7,8-PeCDF 57117-31-4 0.720 600/60,000 Below 2,3,7,8-TCDF 51207-31-9 0.470 600/60,000 Below OCDD 3268-87-9 430 600/60,000 Below OCDF 39001-02-0 27 600/60,000 Below

The term "dioxins" is used to refer to a family of complex but related chlorinated compounds with similar chemical structures and biological activity. This family is composed of specific compounds from three chemical groups: polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and polychlorinated biphenyls (PCBs).

The EPA’s Dioxin Listing Rule was promulgated on January 14, 1985 and designated certain wastes containing particular chlorinated dibenzo-p-dioxin (CDDs), chlorinated dibenzofurans (CDFs), and chlorinated phenols as acute hazardous waste. The rule also established stringent RCRA management standards for these wastes. According to the EPA, the following criteria must be met in order to handle the listed dioxin-containing wastes:

• Land disposal facilities: - landfills, waste piles, surface impoundments and land treatment facilities must comply with the Part 264 requirements and additionally provide an jeffrey.l.sanbor3786 Highlight jeffrey.l.sanbor3786 Highlight acceptable waste management plan for the listed wastes (see applicable standards in 40

CFR 264).

• Hazardous waste combustion units – a hazardous waste combustor, as defined in 40 CFR 63.1201, must comply with standards for controlling emissions of hazardous air pollutants if it burns RCRA hazardous waste in accordance with 40 CFR part 63, Subpart EEE. If a hazardous waste combustor elects to burn a dioxin-listed waste, Subpart EEE requires that the combustor achieve a (more stringent) destruction and removal efficiency (DRE) of at least 99.9999 percent.

In 2003, the U.S. EPA draft dioxin reassessment proposes that most dioxins enter the food chain by being deposited from the atmosphere. Nearly all foreign nations have followed the approach recommended by the WHO for evaluating dioxin toxicity, and have selected Total Daily Intake (TDI) levels in the 1-10 pg/kg-day range. Each of these TDI values or ranges is a suitable candidate for consideration in EPA's determination of soil preliminary remediation goals (PRGs) levels, with preference for the most recent values. The toxicity reference dose (RfD) for the most toxic form, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is provided in the table. These values focus upon exposure concentrations for humans, but do not lend themselves to soil contamination consideration.

The NYDEC has developed an allowable soil concentration (600 ppt) and a soil cleanup objective (SCO) for dioxin TEQ (60,000 ppt), both of which are to be protective of groundwater quality. The allowable concentration assumes contaminated soil is in direct contact with the water table; the SCO value assumes contaminated soil is in the unsaturated zone above the water table and is subject to attenuating processes during transport to groundwater. Neither was used to develop a “recommended” cleanup objective for the State of NY (from U.S. EPA. Review Of State Soil Cleanup Levels For Dioxin (December 2009). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-09/156, 2009.). Based upon guideline, one analyte (OCDD) was above the allowable limit for unrestricted soil use from Staged Soil Pile #1 (USACE Pile #3) and Staged Soil Pile #2 (USACE Pile #2), but within the Soil Cleanup Objective (SCO). As such, GCI recommends that the soil not be used or placed in an area that would allow contact with groundwater.

Table 10A - Polychlorinated Biphenyls (PCBs) - Method: 8082A (GC) – Staged Soil Pile #1 (USACE Pile #3)

GC Semivolatiles - 8082A CAS# Concentration

(ug/Kg)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

PCB-1254 11097-69-1 190 100 Above

Table 10B - Polychlorinated Biphenyls (PCBs) - Method: 8082A (GC) –

GC Semivolatiles - 8082A CAS# Concentration

(ug/Kg)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

PCB-1254 11097-69-1 12 100 Below

Table 10C - Polychlorinated Biphenyls (PCBs) - Method: 8082A (GC) – Staged Soil Pile #3 (USACE Pile #1)

GC Semivolatiles - 8082A CAS# Concentration

(ug/Kg)

NYS DEC

Regulatory Limit for Unrestricted Use (ug/Kg or ppb)

Comment

PCB-1254 11097-69-1 13 100 Below PCB-1260 11096-82-5 8.1 100 Below

The US EPA TSCA regulation identifies cleanup levels which can be used as SCOs for total PCBs.

The NYS DEC groups all PCBs together and have an unrestricted land use of 0.1 ppm (i.e., 100 ppb). PCBs were detected in the composite soil sample from Staged Soil Pile #1 above the regulatory limit. Staged Soil Piles #2 and #3 had detectable concentrations, but were below the regulatory limit.

DISCUSSION AND RECOMMENDATIONS

Minor concentrations of contaminants have been identified in the three Staged Soil Piles sampled. The soils in the area of construction for the new CEAC appear to have historically been manipulated and the long time use of the area has been residential housing and vehicle parking.

During this period, small amounts of chemicals from natural and anthropogenic (man-made) processes have entered into the soils of the site. Construction and demolition debris have also been incorporated into the soils. This has culminated in a soil mass that does not meet the criteria for unrestricted use under the NYS DEC regulations. The soil must be disposed off-site and used in a process that will remove the contamination or use the soil as a raw material to render it into a suitable construction material.

Hazardous and non-hazardous contaminated soil handling and disposal are regulated activities in New York State. The CEAC project soils appear to be regulated waste that is non-hazardous.

The low concentrations of contaminates of concern include petroleum products, volatile organic jeffrey.l.sanbor3786 Highlight compounds (VOCs), semi volatile organic compounds (SVOCs) and polyaromatic hydrocarbons (PAHs), heavy metals and/or other specialty contaminants that require regulated handling and disposal by the contractor.

GCI recommends that the soils be reused or sent to an off-site soil recycling center, approved landfill, or treatment and disposal facility. Once final disposition of the soil is decided, additional sampling may be necessary to satisfy the requirements of the accepting facility.

We appreciate the opportunity to work with you on this project. Should you have any questions concerning this report, please do not hesitate to contact me at (703) 499-5668 or jdolan@gciusa.biz.

Sincerely, James D. Dolan Sr. Environmental Scientist Project Manager Global Consulting, Inc.

mailto:jdolan@gciusa.biz

ATTACHMENT A

TABLE 375-6.8(A): UNRESTRICTED USE SOIL CLEANUP OBJECTIVES

Table 375-6.8(a): Unrestricted Use Soil Cleanup Objectives

Contaminant CAS Number Unrestricted

Use (ppm)

Unrestricted Use

(ppb)

Metals

Arsenic 7440-38-2 13 c 13,000

Barium 7440-39-3 350 c 350,000

Beryllium 7440-41-7 7.2 7,200

Cadmium 7440-43-9 2.5 c 2,500 c Chromium, hexavalent e 18540-29-9 1b 1,000b

Chromium, trivalent e 16065-83-1 30 c 30,000 c

Copper 7440-50-8 50 50,000

Total Cyanide e, f 27 27,000 Lead 7439-92-1 63 c 63,000 c

Manganese 7439-96-5 1600 c 1,600,000 c

Total Mercury 0.18 c 180 c

Nickel 7440-02-0 30 30,000 Selenium 7782-49-2 3.9c 3,900c

Silver 7440-22-4 2 2,000

Zinc 7440-66-6 109 c 109,000 c

PCBs/Pesticides

2,4,5-TP Acid (Silvex) f 93-72-1 3.8 3,800

4,4’-DDE 72-55-9 0.0033 b 3.3 b

4,4’-DDT 50-29-3 0.0033 b 3.3 b 4,4’-DDD 72-54-8 0.0033 b 3.3 b

Aldrin 309-00-2 0.005 c 5 c alpha-BHC 319-84-6 0.02 20 beta-BHC 319-85-7 0.036 36

Chlordane (alpha) 5103-71-9 0.094 94

Unrestricted Use

(ppm) Unrestricted Use

(ppb)

Dibenzofuran f 132-64-9 7 7,000

Dieldrin 60-57-1 0.005 c 5 c Endosulfan I d, f 959-98-8 2.4 2,400

Endosulfan II d, f 33213-65-9 2.4 2,400

Endosulfan sulfate d, f 1031-07-8 2.4 2,400

Endrin 72-20-8 0.014 14 Heptachlor 76-44-8 0.042 42

Lindane 58-89-9 0.1 100

Polychlorinated biphenyls 1336-36-3 0.1 100

Semi volatile organic compounds Acenaphthene 83-32-9 20 20,000

Acenapthylene f 208-96-8 100 a 100,000 a

Anthracene f 120-12-7 100 a 100,000 a

Benz(a)anthracene f 56-55-3 1c 1,000 c

Benzo(a)pyrene 50-32-8 1c 1,000

Benzo(b)fluoranthene f 205-99-2 1c 1,000

Benzo(g,h,i)perylene f 191-24-2 100 100,000 Benzo(k)fluoranthene f 207-08-9 0.8 c 800 c

Chrysene f 218-01-9 1c 1,000

Dibenz(a,h)anthracene f 53-70-3 0.33 b 330 b

Fluoranthene f 206-44-0 100 a 100,000 a

Fluorene 86-73-7 30 30,000 Indeno(1,2,3-cd)pyrene f 193-39-5 0.5 c 500 c m-Cresol f 108-39-4 0.33 b 330 b

Naphthalene f 91-20-3 12 12,000 o-Cresol f 95-48-7 0.33 b 330 b

Contaminant CAS Number

Unrestricted Use (ppm)

Unrestricted Use (ppb)

Pentachlorophenol 87-86-5 0.8 b 800 b

Phenanthrene f 85-01-8 100 100,000 Phenol 108-95-2 0.33 b 330 b

Pyrene f 129-00-0 100 100,000

Volatile organic compounds

1,1,1-Trichloroethane f 71-55-6 0.68 680

1,1-Dichloroethane f 75-34-3 0.27 270

1,1-Dichloroethene f 75-35-4 0.33 330

1,2-Dichlorobenzene f 95-50-1 1.1 1,100 1,2-Dichloroethane 107-06-2 0.02 c 20 c cis -1,2-Dichloroethene f 156-59-2 0.25 250 trans-1,2- Dichloroethene f

156-60-5 0.19 190

1,3-Dichlorobenzene f 541-73-1 2.4 2,400 1,4-Dichlorobenzene 106-46-7 1.8 1,800

1,4-Dioxane 123-91-1 0.1 b 100 b

Acetone 67-64-1 0.05 50

Benzene 71-43-2 0.06 060 n-Butylbenzene f 104-51-8 12 12,000

Carbon tetrachloride f 56-23-5 0.76 760

Chlorobenzene 108-90-7 1.1 1,100

Chloroform 67-66-3 0.37 370 Ethylbenzene f 100-41-4 1 1,000

Hexachlorobenzene f 118-74-1 0.33b 330b

Methyl ethyl ketone 78-93-3 0.12 120

Methyl tert-butyl ether f 1634-04-4 0.93 930 Methylene chloride 75-09-2 0.05 50

All soil cleanup objectives (SCOs) are in parts per million (ppm).

a The SCOs for unrestricted use were capped at a maximum value of 100 ppm. See Technical Support Document (TSD), section 9.3.

b For constituents where the calculated SCO was lower than the contract required quantitation limit (CRQL), the CRQL is used as the Track 1 SCO value.

c For constituents where the calculated SCO was lower than the rural soil background concentration, as determined by the Department and Department of Health rural soil survey, the rural soil background concentration is used as the Track 1 SCO value for this use of the site.

d SCO is the sum of endosulfan I, endosulfan II and endosulfan sulfate.

e The SCO for this specific compound (or family of compounds) is considered to be met if the analysis for the total species of this contaminant is below the specific SCO.

f Protection of ecological resources SCOs were not developed for contaminants identified in Table 375-6.8(b) with “NS”. Where such contaminants appear in Table 375-6.8(a), the applicant may be required by the Department to calculate a protection of ecological resources SCO according to the TSD.

Unrestricted

Use (ppm)

Unrestricted Use

(ppb) n - Propylbenzene f 103-65-1 3.9 3,900 sec-Butylbenzene f 135-98-8 11 11,000 tert-Butylbenzene f 98-06-6 5.9 5,900

Tetrachloroethene 127-18-4 1.3 1,300

Toluene 108-88-3 0.7 700

Trichloroethene 79-01-6 0.47 470

1,2,4-Trimethylbenzene f 95-63-6 3.6 3,600

1,3,5-Trimethylbenzenef 108-67-8 8.4 8,400

Vinyl chloridef 75-01-4 0.02 20

Xylene (mixed) 1330-20-7 0.26 260

ATTACHMENT D

STAGED SOIL PILE #3 (USACE PILE#1)

LABORATORY ANALYSIS REPORT

ANALYTICAL REPORT

Eurofins Lancaster Laboratories Env, LLC 2425 New Holland Pike Lancaster, PA 17601 Tel: (717)656-2300

Laboratory Job ID: 410-40427-1 Client Project/Site: West Point Soil Samples

For:

Global Consulting 6401 Golden Triangle Dr., Suite 304 Greenbelt, Maryland 20770

Attn: James Dolan

Authorized for release by:

5/28/2021 3:18:50 PM

John Cady, Senior Project Manager (832)763-8082 John.Cady@Eurofinset.com

The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page.

This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature.

Results relate only to the items tested and the sample(s) as received by the laboratory.

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Analytical test results meet all requirements of the associated regulatory program (e.g., NELAC (TNI), DoD, and ISO 17025) unless otherwise noted under the individual analysis.