Attachment VII - FAA Matawan_RIR-RAW_2025-07-02_reduced.pdf

MATAWAN RCAG SITE

MARLBORO TOWNSHIP, MONMOUTH COUNTY, NEW JERSEY

Remedial Investigation Report & Remedial

Action Workplan

NJDEP PI No. 019404

NJDEP Case No. 21-09-29-0844-49

AKRF Project No. 240367

Prepared for:

United States Federal Aviation Administration

1701 Columbia Avenue

College Park, Georgia 30337

Prepared by:

140 West Main Street

High Bridge, New Jersey 08829

908-238-0544

JULY 2025

AKRF, Inc. Matawan RCAG Site

Remedial Investigation Report Marlboro, New Jersey i

TABLE OF CONTENTS

Summary of Site History Areas of Concern (AOCs) Report Objectives

3.2.1 Topography

3.2.2 Soils and Surficial Geology

3.2.3 Bedrock Geology

3.2.4 Surface Hydrology and Wetlands

3.2.5 Hydrogeology

3.9.1 Land Use – N.J.A.C. 7:26E-1.13

3.9.2 Groundwater Use Assessment / Well Search – N.J.A.C. 7:26E-1.14

3.9.3 Vapor Intrusion Receptors – N.J.A.C. 7:26E-1.15

3.9.4 Ecological Evaluation – N.J.A.C. 7:26E-1.16

3.10.1 Case Inventory Document – N.J.A.C. 7:26E-1.6(a)3

3.10.2 Electronic Data Deliverables – N.J.A.C. 7:26E-1.6(a)5

ii

FIGURES

Figure 1: USGS Topographic Map

Figure 2: Tax Map

Figure 3: Environmental Area of Concern (AOC) Location Map

Figure 4: AOC-1 (Tower 1) Soil Sampling Lead Results & Sample Location Map

Figure 5: AOC-1 (Equipment Building) Soil Sampling Lead Results & Sample Location Map

Figure 6: AOC-1 (Emergency Generator Building) & AOC-6 (Former Office Building) Soil

Sampling Lead Results & Sample Location Map

Figure 7: AOC-5 (Former Tower 3) Soil Sampling Lead Results & Sample Location Map

Figure 8: Soil Delineation Map and Proposed Excavation Area

TABLES

Table 1: Sample Summary Table

Table 2: Summary of Laboratory Analytical Results for Total Lead

Table 3: Summary of Laboratory Analytical Results for PCBs

APPENDICES

Appendix A: Preliminary Assessment / Site Investigation Report (Kleinfelder; February 2022)

Appendix B: Quality Assurance Project Plan (QAPP)

Appendix C: Data Usability Summary Report (DUSR)

Appendix D: Updated Receptor Evaluation (RE)

Appendix E: Soil Boring Logs

Appendix F: Laboratory Analytical Reports

INTRODUCTION

AKRF, Inc. (AKRF) has prepared this Remedial Investigation Report (RIR) for the property located at

Beacon Hill Road and Reids Hill Road (Block 153, Lot 108), Marlboro Township, Monmouth County, New Jersey (hereinafter referred to as the “Site” or “subject property”). This RIR has been prepared to document the completion of remedial investigation requirements in association with New Jersey

Department of Environmental Protection (NJDEP) Site Remediation Program (SRP) Program Interest (PI)

No. 019404. A United States Geological Survey (USGS) topographic map illustrating the Site location is included as Figure 1 and a tax map of the subject property is included as Figure 2.

Under the Site Remediation Reform Act (SRRA), a Licensed Site Remediation Progression (LSRP) was retained to ensure that subsurface environmental conditions at the subject property are investigated and remediated in accordance with the N.J.A.C. 7:26E Technical Requirements for Site Remediation (TRSR).

This report has been prepared to document the completion of remedial investigation requirements in accordance with the SRRA and the TRSR.

Summary of Site History

The Site is approximately 0.34-acres and is improved with one (1) Equipment Building, one (1) Emergency

Generator Building, and two (2) towers (Tower 1 and Tower 2) formerly used for radio communication.

The Site is also serviced with one (1) water supply well and one (1) 500-gallon diesel fuel above ground storage tank (AST). The Site is secured with a chain-link fence and is accessible by way of the intersection located at Beacon Hill Road and Reids Hill Road, where the gated entrance to “Triple S Farms” is located.

The Site was formerly operated by the United States (U.S.) Federal Aviation Administration (FAA) as a radio communication station from circa 1964 to 2020. The Site is currently vacant, as the U.S. FAA plans to demolish the existing Site structures.

In October 1997, one (1) 550-gallon underground storage tank (UST) (Tank No. 0E28) was removed from the Site. No evidence of release was observed during tank removal and three (3) confirmatory soil samples were collected and analyzed for total petroleum hydrocarbons (TPH). Results were reported below NJDEP regulatory criteria in place at the time, and an Unrestricted Use No Further Action (NFA) determination was issued by the NJDEP for the area of concern (AOC).

In February 2022, Kleinfelder, Inc. (Kleinfelder) prepared a Preliminary Assessment / Site Investigation

(PA/SI) Report for the Site, which documented a Site Investigation (SI) completed by TTI Environmental, Inc. (TTI) on November 4, 2020. TTI confirmed that the buildings and towers located on the subject property contained lead-based paint (LBP) and polychlorinated biphenyl (PCB)-containing building materials which had impacted Site soils. Kleinfelder’s report recommended further investigation be performed to delineate the extent of lead and PCB contamination on the subject property.

Areas of Concern (AOCs)

Results of Kleinfelder’s 2022 PA/SI Report identified the following AOCs in association with the subject property, as depicted on Figure 3:

• AOC-1: Lead & PCB Contamination in Soil from Lead-Based Painted Structures and PCB-Containing

Materials – Lead and PCBs have been detected in soils at the subject property, in exceedance of the applicable NJDEP Soil Remediation Standards (SRS); specifically, in the vicinity of existing Site structures identified as Tower 1, the Equipment Building, and the Emergency Generator Building.

• AOC-2: Former 550-Gallon Unleaded Gasoline / Diesel Fuel UST (0E28) and Associated Piping – The former UST was removed from the subject property in October 1997. Post-excavation soil sampling results detected TPH at low concentrations, well below the applicable NJDEP regulatory criteria in place at the time. An Unrestricted Use NFA was issued by the NJDEP in June 1998, closing out regulatory requirements associated with AOC-2.

• AOC-3: One 500-Gallon Diesel Fuel AST – One (1) AST was observed during the Site inspection completed on January 25, 2022. The AST was observed to be in good condition, with no evidence of holes or leaks observed. No evidence of release was observed in the general area surrounding the AST.

• AOC-4: Pole-Mounted Transformer – One (1) pole-mounted transformer was observed during the Site inspection completed on January 25, 2022. The transformer was observed to be in good condition, with no evidence of a release to the surrounding area observed.

• AOC-5: Former Tower 3 – Information gathered during the completion of Kleinfelder’s 2022 PA/SI identified an additional antenna tower as being formerly located in the center of the Site. Based on the age of the facility, Tower 3 may have also been constructed with LBP and/or PCB-containing materials.

• AOC-6: Former Office Building – Information gathered during the completion of Kleinfelder’s 2022

PA/SI identified an additional office building was formerly located to the northwest of the current

Emergency Generator Building. Based on the age of the facility, the Former Office Building may have also been constructed with LBP and/or PCB-containing materials.

• AOC-7: Suspected Septic System – Information gathered during the completion of Kleinfelder’s 2022

PA/SI indicated that a septic system may be located onsite, in connection with a restroom formerly associated with the Former Office Building (AOC-6).

• AOC-8: Potential Groundwater Impacts – The SI conducted at the subject property identified lead and

PCB soil impacts. As these contaminants are confirmed to be present in Site soils, it is possible that the contaminants of concern have migrated to the groundwater table.

Booz Allen Hamilton Inc. (BAH) and AKRF conducted a remedial investigation (RI), as documented by this report, to address those AOCs requiring further investigation on the subject property (i.e., AOC-1, AOC-5, AOC-6, and AOC-8).

Report Objectives

The objectives of this report are as follows:

1. Document the achievement of lateral and vertical delineation of contaminants of concern in all media as it pertains to each AOC;

2. Update the receptor evaluation, pursuant to N.J.A.C. 7:26E-1.12;

3. Demonstrate that the remedial investigation was performed in accordance with the TRSR (N.J.A.C.

7:26E, et seq.) and N.J.A.C. 7:26C Administrative Requirements for the Remediation of Contaminated

Sites (ARRCS Rules); and,

4. Present and discuss all of the information required to be identified or collected pursuant to N.J.A.C.

7:26E-4.1 through 4.8

SUMMARY OF PRIOR INVESTIGATIONS

As detailed in Section 1.1 and Section 1.2, a SI was previously conducted at the subject property to address the following identified AOCs:

• AOC-1: Lead & PCB Contamination in Soil from Lead-Based Painted Structures and PCB-Containing

Materials

• AOC-2: Former 550-Gallon Unleaded Gasoline / Diesel Fuel UST (0E28) and Associated Piping

• AOC-3: One 500-Gallon Diesel Fuel AST

• AOC-4: Pole-Mounted Transformer

• AOC-5-: Former Tower 3

• AOC-6: Former Office Building

• AOC-7: Suspected Septic System

• AOC-8: Potential Groundwater Impacts

The former consultant conducted the SI in November 2020, with investigation activities consisting of a soil investigation, lead and PCB-containing paint investigation, and asbestos sampling. The 2022 Kleinfelder

PA/SI Report is included as Appendix A, with a summary of the findings presented in the following sections.

UST Closure and NFA Issuance (1997 – 1998)

In October 1997, Research Management Consultants, Inc. oversaw the removal of one (1) 550-gallon UST from the Site (Tank No. E028). The tank was located to the west of the Equipment Building. The tank was reportedly used to provide fuel to the onsite emergency generator. During UST removal activities, field personnel identified the tank to contain diesel fuel; though, the UST was registered with the NJDEP to contain unleaded gasoline. At the time of removal, no holes, deterioration, or elevated organic vapor readings (measured utilizing a photoionization detector [PID]) were observed. The bottom of the tank was measured to be located at six (6) feet (ft) below grade surface (bgs). Groundwater was not encountered at the time of UST removal. Two (2) confirmatory soil samples were collected from the base of the UST excavation and one (1) soil sample was collected from the base of the removed subsurface piping that formerly ran to the emergency generator. The three (3) soil samples were analyzed for TPH. TPH was detected at concentrations ranging from 22 to 160 milligrams per kilogram (mg/kg), below the applicable

NJDEP regulatory criteria in place at the time of removal (10,000 mg/kg). An Unrestricted Use NFA determination was issued by the NJDEP on June 9, 1988 (Tank Closure No. C97-0918) for AOC-2.

Following the UST removal, an AST (AOC-3) was installed in place of the UST to power the onsite emergency generator.

Preliminary Assessment/Site Investigation Report (2020 – 2022)

TTI completed a SI at the subject property in November 2020, and Kleinfelder was retained to complete a

PA/SI Report for the subject property (included as Appendix A). The PA identified towers and buildings currently and historically located on the subject property potentially contained LBP and PCB-containing building materials. The SI was conducted to further investigate potential impacts of lead and PCBs to Site soils. Results of the SI confirmed that lead and PCBs were present in paint on the surfaces of Site structures, with impacts to soil in the vicinity of these structures also identified (as summarized below).

Tower 1 and Tower 2 Investigation

TTI collected one (1) soil sample from along the drip line of each side of Tower 1 and Tower 2. Four (4) additional soil samples were collected from 5-ft step-offs of each of the initial samples collected along the drip line of each tower. Soils were collected from the 0 to 6-inch interval bgs at each of the sampling locations. The soil samples were analyzed for lead and PCBs by EMSL Analytical Incorporated (EMSL).

The towers were not observed to be painted; therefore, paint chip samples were not collected during the SI.

Surficial soils collected from the area surrounding Tower 1 reported lead concentrations to range from 51 to 170 mg/kg, with samples collected from the eastern, southern, and western sides of the tower reporting concentrations in exceedance of the NJDEP Migration to Ground Water (MGW) SRS (90 mg/kg). Soil samples collected during the SI and in the vicinity of Tower 1 are depicted on Figure 4, identified by SB-

17 through SB-24.

Surficial soils collected from the area surrounding Tower 2 reported lead concentrations to range from <40 to 68 mg/kg, with no samples reporting concentrations in exceedance of applicable NJDEP SRS. PCBs were not detected in any of the surficial soil samples collected from the areas surrounding Tower 1 and

Tower 2.

Additionally, one (1) composite sample was collected from the building materials of each tower and analyzed for lead via the Toxicity Characteristic Leaching Procedure (TCLP) extraction method. TCLP results did not report lead to be detected in exceedance of applicable NJDEP regulatory criteria.

Equipment Building Investigation

Three (3) paint chip samples were collected from the exterior of the Equipment Building and submitted to

EMSL for lead analysis. Lead was detected above the USEPA threshold concentration value of 0.5% by weight for classification as LBP in two (2) of the samples collected (at concentrations measuring 2.00% and 2.50% by weight).

Four (4) paint chip samples were collected from the exterior of the Equipment Building and submitted to

EMSL for PCB analysis. PCBs were detected in three (3) of the samples collected (ranging from 0.24 to

4.5 mg/kg), below the FAA ECU screening criteria of 50 mg/kg for classification as PCB Bulk Product

Waste; therefore, the material collected is not considered PCB Bulk Product Waste.

Eight (8) potential asbestos containing material (ACM) samples were collected from the Equipment

Building and submitted to EMSL for asbestos analysis. None of the potential ACM samples analyzed contained greater than 1% asbestos.

Similar to the investigation conducted in the vicinity of Tower 1 and Tower 2, TTI collected four (4) soil samples from along the drip line of each side around the Equipment Building. Four (4) additional soil samples were collected from 5-ft step-offs of each of the initial samples collected along the drip line of the

Equipment Building (with the exception of the step-off samples collected from the northern side of the

Equipment Building, which required a further step-out to clear the concrete pathway located to the north of the structure). Soils were collected from the 0 to 6-inch interval bgs at each of the sampling locations. The soil samples were analyzed by EMSL for lead and PCBs.

Lead was detected in several of the soil samples at concentrations ranging from 86 to 12,000 mg/kg, in exceedance of applicable NJDEP SRS. PCBs were detected in one (1) of the samples collected (from along the northern dripline of the structure) at a concentration of 0.88 mg/kg and in exceedance of the NJDEP

Residential Ingestion-Dermal (RID) SRS (0.25 mg/kg). Soil samples collected during the SI and in the vicinity of the Equipment Building are depicted on Figure 6, identified by SB-9 through SB-16.

Emergency Generator Building Investigation

Six (6) paint chip samples were collected from the exterior of the Emergency Generator Building and submitted to EMSL for lead analysis. Lead was detected above the USEPA threshold concentration value of 0.5% by weight for classification as LBP in two (2) of the samples collected (at concentrations measuring

0.52% and 1.40% by weight).

Two (2) paint chip samples were collected from the exterior of the Emergency Generator Building and submitted to EMSL for PCB analysis. PCBs were detected in the samples at concentrations of 3 and 13 mg/kg, below the FAA ECU screening criteria of 50 mg/kg for classification as PCB Bulk Product Waste;

therefore, the material collected is not considered PCB Bulk Product Waste.

Six (6) potential ACM samples were collected from the Emergency Generator Building and submitted to

EMSL for asbestos analysis. Two (2) of the potential ACM samples analyzed contained greater than 1% asbestos.

Similar to the investigation conducted in the vicinity of Tower 1, Tower 2, and the Equipment Building, TTI collected four (4) soil samples from along the drip line of each side around the Emergency Generator

Building. Four (4) additional soil samples were collected from 5-ft step-offs of each of the initial samples collected along the drip line of the Emergency Generator Building. Soils were collected from the 0 to 6-inch interval bgs at each of the sampling locations. The soil samples were analyzed for lead and PCBs by

EMSL.

Lead was detected in several of the soil samples at concentrations ranging from 120 to 660 mg/kg, in exceedance of applicable NJDEP SRS. PCBs were not detected in any of the surficial soil samples collected from the area surrounding the Emergency Generator Building. Soil samples collected during the SI and in the vicinity of the Equipment Building are depicted on Figure 7, identified by SB-1 through SB-8.

Conclusions and Recommendations

Based on the results of the PA/SI, it was concluded that LBP and PCB-containing materials exist in association with the identified Site structures. Proper abatement by a New Jersey certified contractor was recommended to safely remove and dispose of the structures during decommissioning of the former RCAG facility to protect human health and prevent further impacts to surrounding environmental media.

Information gathered during the Site inspection revealed that additional structures were previously removed from the subject property, including Former Tower 3 (AOC-5) and a Former Office Building (AOC-6). The

SI results indicated that LBP and PCBs have impacted the soils surrounding the Equipment Building, Emergency Generator Building, and Tower 1. A Remedial Investigation (RI) was determined to be required to investigate lead and PCB impacts in the vicinity of AOC-5 and AOC-6 and to further delineate lead and

PCBs identified in Site soil in the vicinity of AOC-1.

GENERAL REPORTING REQUIREMENTS

Site Location and Regional Land Use

The Site is located at Beacon Hill Road and Reids Hill Road (Block 153, Lot 108) in Marlboro Township, Monmouth County, New Jersey. The subject property encompasses approximately 0.34-acres and is zoned as Community Facilities (CF). The Site was formerly operated by the U.S. FAA as a radio communications center from circa 1964 through 2020. The Site is currently vacant with one (1) Equipment Building, one

(1) Emergency Generator Building, and two (2) inactive radio towers (Tower 1 and Tower 2). The Site is serviced by one (1) 500-gal diesel fuel AST and one (1) water supply well. The Site is actively provided electricity by Jersey Central Power & Lighting (JCP&L). The property is surrounded by forested lands and residential properties.

Physical Setting

3.2.1 Topography

The Site is located within the Marlboro Quadrangle and the Coastal Plain physiographic province of New Jersey. The Coastal Plain physiographic province consists of relatively flat topography with some hills. The Site sits at an elevation of approximately 350 ft above mean sea level (amsl), sloping gently to the southeast.

3.2.2 Soils and Surficial Geology

The United States Department of Agriculture (USDA) National Resource Conservation Service

(NRCS) Soil Survey Geographical (SSURGO) data classifies soils at the Site as Tinton loamy sand, 0 to 5 percent slopes (ThgB). ThgB is further described as sandy eolian deposits over glauconite bearing fluviomarine deposits.

The NJDEP’s NJ-GeoWeb Geographic Information System (GIS) database indicates that the Site is underlain by Beacon Hill Gravel (Tbh). Tbh is further described as reddish yellow to yellow sand, clayey sand, or pebble gravel. The Tbh formation can be up to 30 ft thick and originates from the Late Miocene geologic age, resulting from erosional remnants of a former fluvial plain that caps the highest hills and uplands in the Coastal Plain physiographic province.

3.2.3 Bedrock Geology

The bedrock geology at the Site consists of the Shrewsbury Member (Krbs). Krbs is described as reddish yellow to yellow, fine to coarse grained quartz sand. Krbs is locally iron cemented and up to 100 ft in thickness.

3.2.4 Surface Hydrology and Wetlands

The NJDEP Surface Water Quality Classification dataset shows the nearest water body is Willow

Brook Tributary (FW2-NTC1). Will Brook Tributary is a Freshwater (FW2) Non-Trout (NT)

Category 1 stream. Category 1 waters are protected from any measurable change in water quality, as they serve as ecological, recreational, and/or fishery resources. The tributary is located approximately 0.17 miles to the southeast of the subject property and flows southwest towards Big

Brook Tributary.

3.2.5 Hydrogeology

NJDEP’s NJ-GeoWeb GIS database indicates no surficial aquifers to be located at the Site. The bedrock aquifer mapped to underlie the Site is classified as Aquifer Unit Number 1,526, composite confining unit aquifer (ccua), with an Aquifer Rank of C-B. Groundwater is classified as Type II-

A at the Site and in the vicinity of the subject property.

Variances and Deviations from Requirements – N.J.A.C. 7:26E-1.6(b)4

There were no observed or proposed variances or deviations from N.J.A.C. technical or administrative requirements or from NJDEP technical guidance(s).

Regulatory Timeframes and Calendar Date – N.J.A.C. 7:26E-1.6(b)5

Pursuant to N.J.A.C. 7:26E-4.10, the applicable regulatory timeframes for the open NJDEP SRP case under

PI No. 019404 is as follows:

Task Regulatory Timeframe Mandatory Timeframe

Remedial Investigation * September 29, 2026

Remedial Action September 28, 2027 September 28, 2029

*Remedial timeframe extension request was submitted to the NJDEP on September 23, 2024.

Ongoing Sources / Interim Remedial Measures – N.J.A.C. 7:26E-1.10

Ongoing sources such as exposed soil contamination, dissolved phase groundwater contaminants, or free-phase light non-aqueous phase liquid (LNAPL) have the potential to migrate offsite and impact the public health and safety and the environment. The person(s) responsible for conducting the remediation has a continuing responsibility to identify the need for any interim remedial measure deemed necessary to remove, contain, or stabilize a source of contamination in order to prevent contaminant migration and to protect public health and safety and the environment.

No interim remedial actions have been deemed necessary or implemented at the subject property.

Immediate Environmental Concern – N.J.A.C. 7:26E-1.11

Immediate Environmental Concern (IEC) condition(s) have not been reported at the subject property.

Usability of Laboratory Analytical Data – N.J.A.C. 7:26E-1.6(b)9,10

Sampling activities conducted during the RI (as documented herein) were performed in accordance with the Quality Assurance Project Plan (QAPP), included as Appendix B. Samples were collected in accordance with N.J.A.C. 7:26E TRSR and the NJDEP FSPM, and all appropriate technical guidance(s).

In accordance with N.J.A.C 7:26E-1.6(b)9, a Data Usability Evaluation was performed following the requirements of N.J.A.C. 7:26E-2.0 Quality Assurance for Sampling and Laboratory Analysis for the samples collected during the RI. The Data Usability Summary Report (DUSR) is included as Appendix C.

Despite several non-conformances, AKRF has evaluated the data and has determined that it is acceptable and representative of current Site conditions.

Applicable Remediation Standards – N.J.A.C. 7:26E-5.7(b)5

The Remediation Standards (N.J.A.C. 7:26D) establish the Soil Remediation Standards (SRS), Indoor Air

Remediation Standards (IARS), and Ground Water Quality Standards (GWQS) as the minimum standards for the remediation of contaminated soil, indoor air, and groundwater, respectively. The NJDEP’s Vapor

Intrusion Technical Guidance document establishes the Soil Gas Screening Levels (SGSL) as the minimum standards for sub-slab soil gas (SSSG).

The remediation standards for soil are numeric, health-based concentrations or levels of contaminants that, when exceeded, pose an unacceptable human health risk from exposure through either ingestion, dermal contact, or inhalation of soil, soil particulates, or vapors. These health-based criteria are derived to protect public health without consideration of analytical feasibility, treatability, or cost. The health-based criteria reflect the most recent toxicological information to ensure adequate protection of human health. The soil remediation standard implemented by the NJDEP’s regulatory programs is the higher of the health-based criterion and the corresponding reporting limit (RL) for each constituent. The RL represents the lowest concentration of a constituent that can be reliably achieved among laboratories within specified limits of precision and accuracy during routine laboratory operating conditions (i.e., the lowest quantifiable concentration).

The applicable remediation standards for the compounds of concern evaluated as a part of this RI are as follows:

• Residential Ingestion-Dermal Soil Remediation Standards (RID-SRS)

• Residential Inhalation Soil Remediation Standards (RInh-SRS)

• Non-Residential Ingestion-Dermal Soil Remediation Standards (NRID-SRS)

• Non-Residential Inhalation Soil Remediation Standards (NRInh-SRS)

• Migration to Ground Water Soil Remediation Standards (MGW-SRS)

The remediation standards were compared to sampling data collected as a part of the RI activities completed at the subject property.

Receptor Evaluation – N.J.A.C. 7:26E-1.12-1.16

In accordance with N.J.A.C. 7:26E-1.12(e), an updated Receptor Evaluation (RE) is included with this remedial phase submission as Appendix D.

3.9.1 Land Use – N.J.A.C. 7:26E-1.13

The current land use at the Site is listed as government use, though currently vacant. Land use within 200 ft of the subject property boundary includes deciduous forest, deciduous wooded wetlands, and residential use. A childcare canvass was completed online via NJDEP’s NJ-GeoWeb

GIS database, with no childcare facilities identified within a 200-ft radius of the Site. Currently, there are no known proposed land use changes within 200 ft of the Site.

3.9.2 Groundwater Use Assessment / Well Search – N.J.A.C. 7:26E-1.14

AKRF evaluated the potential for groundwater contamination at the subject property. Potable water is supplied to the subject property via the water supply well located onsite.

During the RI, AKRF installed a soil boring (SB-56) to a depth of 25 ft bgs on October 29, 2024, in an attempt to evaluate the presence of groundwater and/or bedrock at the subject property; no evidence of groundwater or bedrock was encountered. Site groundwater is presumed to be confined within the bedrock aquifer mapped by NJDEP’s NJ-GeoWeb GIS database, as previously described in Section 3.2.5.

3.9.3 Vapor Intrusion Receptors – N.J.A.C. 7:26E-1.15

Pursuant to N.J.A.C. 7:26E, an evaluation of the vapor intrusion (VI) pathway must be conducted when any of the following conditions exist:

• A volatile organic groundwater contaminant is identified within 30 ft or 100 ft (contaminant dependent) of a building at a concentration greater than the NJDEP Vapor Intrusion Ground

Water Screening Level (VIGWSL);

• Free-product is identified in subsurface media;

• Soil gas or indoor air contamination is detected at concentrations that exceed the soil gas or indoor air screening levels;

• A wet basement or sump in a building contains free product or groundwater containing any volatile contaminant;

• Methane generating conditions are present that may cause an oxygen deficient or explosive environment; and/or,

• Site conditions are indicative of potential human health and safety risk via the VI pathway.

Based on investigations completed to date, none of the above conditions exist at the subject property and a VI investigation is not required.

3.9.4 Ecological Evaluation – N.J.A.C. 7:26E-1.16

Environmentally Sensitive Natural Resources (ESNRs) including water bodies, streams, wetlands, and other ESNRs, along with Contaminants of Potential Ecological Concern (COPECs) existing in soils at the subject property were investigated as a part of the RE.

Mapped deciduous wooded wetlands were identified on the north adjacent property, approximately

70-feet north/northwest of the Site. Lead was identified as a COPEC in Site soils, with the known extent of contamination delineated. Contaminants of concern extend offsite in areas to the north and east; approximately 5-feet offsite north and 10-feet offsite east.

COPECs were delineated and do not extend to the identified ESNR on the adjacent property;

therefore, a complete migration pathway does not exist.

Additional Support Documentation – N.J.A.C. 7:26E-1.6

3.10.1 Case Inventory Document – N.J.A.C. 7:26E-1.6(a)3

The Case Inventory Document (CID) for the Site, as of the completion of RI activities (as documented herein), is provided with the submission of this report.

3.10.2 Electronic Data Deliverables – N.J.A.C. 7:26E-1.6(a)5

The Electronic Data Deliverables (EDDs) for sampling results detailed within this report have been emailed to the NJDEP at srpedd@dep.state.nj.us.

mailto:srpedd@dep.state.nj.us

REMEDIAL INVESTIGATION SUMMARY

A RI was conducted by AKRF and BAH at the subject property on October 29 & 30, 2024 and January 23, 2025. RI activities were inclusive of surface and subsurface soil sampling to laterally and vertically delineate lead and PCB impacts previously identified to be associated with the following AOCs at the subject property:

• AOC-1: Lead & PCB Contamination in Soil from Lead-Based Painted Structures and PCB-Containing

Materials

• AOC-5: Former Tower 3

• AOC-6: Former Office Building

The location of each AOC is depicted on Figure 3. Sampling activities were conducted in accordance with the procedures set forth in the NJDEP’s FSPM, as described in the following sections.

Soil Investigation

The RI was completed to delineate the impacts previously identified in Site soils to develop a comprehensive Remedial Action Workplan (RAW) for the removal of impacted soils (as further described in Section 5.0). All soil samples were collected in accordance with AKRF’s QAPP (Appendix B), the

NJDEP’s FSPM, and applicable technical guidance(s). Samples were collected via the grab sampling method from discrete 6-inch intervals, utilizing either direct-push drilling methods or hand collection methods (i.e., hand auger). Samples were transported under chain-of-custody procedures to Pace Analytical

National Center for Testing & Innovation (Pace) in Mount Juliet, Tennessee for chemical analysis.

Majority of the samples collected at the Site were from surficial soils (located 0 to 6-inches bgs), consisting primarily of yellow-orange or brown sands to silty sands, with some gravel and/or pebbles noted to be present in the sample. Soil boring logs for those sample locations where borings were advanced to depths greater than 6-inches bgs are included as Appendix E.

Sampling methods and a summary of soil analytical data is discussed in the following sections, by AOC, with laboratory analytical data packages for those sampling results reported herein included as Appendix

F.

4.1.1 AOC-1: Lead & PCB Contamination in Soil from Lead-Based Painted Structures and PCB-Containing Materials

Tower 1

On October 29 – 30, 2024, nine (9) surficial soil samples were collected from 0.0 to 0.5 ft bgs and three (3) additional samples were collected from soils located at 1.5 to 2.0 ft bgs to laterally and vertically delineate the extent of contamination previously identified in the vicinity of Tower 1. All soil samples collected were laboratory analyzed for lead, with analytical results reporting the following exceedances of the applicable NJDEP SRS:

Sample ID /

Depth (ft bgs)

Contaminant of

Concern

Concentration

(mg/kg)

NJDEP SRS Exceeded

(mg/kg)

QPI-SB-090 (0-0.5) Lead 103 MGW-SRS (90)

A summary of lead analytical results reported in soil are further summarized in Table 2 and depicted on Figure 4.

Equipment Building

On October 29 – 30, 2024, ten (10) surficial soil samples were collected from 0.0 to 0.5 ft bgs and six (6) additional soil samples were collected from discrete 6-inch intervals located between 1.0 and 5.0 ft bgs to laterally and vertically delineate the extent of contamination previously identified in the vicinity of the Equipment Building. All soil samples collected were laboratory analyzed for lead, with select samples collected from areas located to the northeast of the Equipment Building also analyzed for PCBs. No PCBs were reported above NJDEP SRS. Laboratory analytical results reported lead in exceedance of the applicable NJDEP SRS:

Sample ID /

Depth (ft bgs)

Contaminant of

Concern

Concentration

(mg/kg)

NJDEP SRS Exceeded

(mg/kg)

QPI-SB-059 (0-0.5) Lead 110 MGW-SRS (90)

QPI-SB-060 (0-0.5) Lead 132 MGW-SRS (90)

QPI-SB-063 (0-0.5) Lead 233 RID-SRS (200)

QPI-SB-064 (1.5-2.0) Lead 765 RID-SRS (200)

QPI-SB-065 (1.0-1.5) Lead 846 NRID-SRS (800)

QPI-SB-066 (0-0.5) Lead 1,890 NRID-SRS (800)

QPI-SB-067 (0-0.5) Lead 492 RID-SRS (200)

QPI-SB-068 (0-0.5) Lead 649 RID-SRS (200)

QPI-SB-069 (0-0.5) Lead 237 RID-SRS (200)

QPI-SB-094 (0-0.5) Lead 584 RID-SRS (200)

On January 23, 2025, ten (10) surficial soil samples were collected from 0.0 to 0.5 ft bgs in the vicinity of the Equipment Building and laboratory analyzed for lead. Soil sampling analytical results reported in exceedance of the applicable NJDEP SRS were as follows:

Sample ID /

Depth (ft bgs)

Contaminant of

Concern

Concentration

(mg/kg)

NJDEP SRS Exceeded

(mg/kg)

QPI- SB-102 (0-0.5) Lead 1,150 NRID-SRS (800)

QPI- SB-103 (0-0.5) Lead 112 MGW-SRS (90)

QPI- SB-104 (0-0.5) Lead 464 RID-SRS (200)

QPI- SB-105 (0-0.5) Lead 379 RID-SRS (200)

QPI- SB-107 (0-0.5) Lead 280 RID-SRS (200)

QPI- SB-111 (0-0.5) Lead 213 RID-SRS (200)

QPI- SB-113 (0-0.5) Lead 107 MGW-SRS (90)

A summary of lead analytical results reported in soil are further summarized in Table 2 and PCB analytical results are further summarized in Table 3. Sample locations are depicted on Figure 8.

Impacts identified in exceedance of the RID-SRS and NRID-SRS will be addressed via remedial action of AOC-1, as further detailed in Section 5.0.

Emergency Generator Building

On October 29 – 30, 2024, six (6) surficial soil samples were collected from 0.0 to 0.5 ft bgs and four (4) additional soil samples were collected from discrete 6-inch intervals located between 1.0 and 2.0 ft bgs to laterally and vertically delineate the extent of contamination previously identified in the vicinity of the Emergency Generator Building. Soil samples collected were laboratory analyzed for lead, with analytical results reporting the following exceedances of the applicable

NJDEP SRS:

Sample ID /

Depth (ft bgs)

Contaminant of

Concern

Concentration

(mg/kg)

NJDEP SRS Exceeded

(mg/kg)

QPI-SB-071 (1.0-1.5) Lead 235 RID-SRS (200)

QPI-SB-073 (0-0.5) Lead 212 RID-SRS (200)

QPI-SB-075 (0-0.5) Lead 139 MGW-SRS (90)

QPI-SB-078 (0-0.5) Lead 248 RID-SRS (200)

QPI-SB-079 (0-0.5) Lead 138 MGW-SRS (90)

QPI-SB-080 (0-0.5) Lead 167 MGW-SRS (90)

QPI-SB-081 (0-0.5) Lead 143 MGW-SRS (90)

A summary of lead analytical results reported in soil are further summarized in Table 2 and depicted on Figure 6. Impacts identified in exceedance of the RID-SRS will be addressed via remedial action of AOC-1, as further detailed in Section 5.0.

4.1.2 AOC-5: Former Tower 3

On October 29 – 30, 2024, twelve (12) soil samples were collected from surficial soils (0.0 to 0.5 ft bgs) in the vicinity of AOC-5 and laboratory analyzed for lead and PCBs. No PCBs were reported above NJDEP SRS. Laboratory analytical results reported lead in exceedance of the applicable

NJDEP SRS:

Sample ID /

Depth (ft bgs)

Contaminant of

Concern

Concentration

(mg/kg)

NJDEP SRS Exceeded

(mg/kg)

QPI-SB-035 (0-0.5) Lead 124 MGW-SRS (90)

QPI-SB-036 (0-0.5) Lead 177 MGW-SRS (90)

QPI-SB-037 (0-0.5) Lead 241 RID-SRS (200)

QPI-SB-042 (0-0.5) Lead 128 MGW-SRS (90)

QPI-SB-043 (0-0.5) Lead 98 MGW-SRS (90)

A summary of lead analytical results reported in soil are further summarized in Table 2 and PCB analytical results are further summarized in Table 3. Sample locations are depicted on Figure 7.

Soil impacts reported in QPI-SB-037 in exceedance of the RID-SRS will be addressed via remedial action of AOC-1, as further described in Section 5.0.

4.1.3 AOC-6: Former Office Building

On October 29 – 30, 2024, six (6) surficial soil samples were collected from 0.0 to 0.5 ft bgs to determine the lateral extent of impacts and two (2) additional samples were collected from soils located at 1.5 to 2.0 ft bgs to vertically delineate the extent of contamination identified in the vicinity of AOC-6. All soil samples collected were laboratory analyzed for lead and PCBs, with the exception of QPI-SB-077 (collected from 1.5 to 2.0 ft bgs). Soil sample QPI-SB-077 was only analyzed for lead, as the soil boring was collocated to a historic soil sample (SB-8) where only lead impacts had previously been identified in surficial soils. No PCBs were reported above NJDEP

SRS. Laboratory analytical results reported lead in exceedance of the applicable NJDEP SRS:

Sample ID /

Depth (ft bgs)

Contaminant of

Concern

Concentration

(mg/kg)

NJDEP SRS Exceeded

(mg/kg)

QPI-SB-051 (0-0.5) Lead 187 MGW-SRS (90)

QPI-SB-091 (0-0.5) Lead 522 RID-SRS (200)

On January 23, 2025, a total of two (2) soil borings were advanced in order to further delineate lead impacts identified in soil sample QPI-SB-091 located along the property fence line. Two (2) surficial soil samples were collected from 0.0 to 0.5 ft bgs and laboratory analyzed for lead. Soil sampling analytical results reported in exceedance of the applicable NJDEP SRS were as follows:

Sample ID /

Depth (ft bgs)

Contaminant of

Concern

Concentration

(mg/kg)

NJDEP SRS Exceeded

(mg/kg)

QPI- SB-100 (0-0.5) Lead 120 MGW-SRS (90)

QPI- SB-101 (0-0.5) Lead 727 RID-SRS (200)

A summary of lead analytical results reported in soil are further summarized in Table 2 and PCB analytical results are further summarized in Table 3. Sample locations are depicted on Figure 6.

The soil impacts identified in soil samples QPI-SB-091 and SPI-SB-101 in exceedance of the RID-

SRS will be addressed via remedial action of AOC-1, as further described in Section 5.0.

4.1.4 Supplemental Soil Delineation Sampling

On April 30, 2025, a total of twenty-four (24) soil borings (QPI-SB-114 through QPI-SB-137) were advanced to delineate lead soil impacts identified in relation to AOC-1. As noted on Table 1, many of the samples were held pending the results of the initial lead analysis. Soil sampling analytical results reported in exceedance of the NJDEP SRS were as follows:

Sample ID /

Depth (ft bgs)

Contaminant of

Concern

Concentration

(mg/kg)

NJDEP SRS Exceeded

(mg/kg)

QPI- SB-114 (0-0.5) Lead 276 RID-SRS (200)

QPI- SB-117 (0-0.5) Lead 152 MGW-SRS (90)

QPI- SB-120 (0-0.5) Lead 127 MGW-SRS (90)

QPI- SB-129 (0-0.5) Lead 108 MGW-SRS (90)

QPI- SB-115 (0-0.5) Lead 188 MGW-SRS (90)

A summary of lead analytical results reported in soil are further summarized in Table 2 and sampling locations depicted on Figure 9.

Migration to Ground Water Investigation

On October 29, 2024, soil boring SB-56 was advanced to a depth of 25 ft bgs in an effort to locate the water table; no groundwater was encountered to 25 ft. Onsite soil contamination was vertically delineated at 2 ft bgs; therefore, there is at least a 23-ft “clean zone” at the Site between impacted soils and groundwater.

Therefore, no further groundwater investigation is required for AOC-8.

Migration to Ground Water Exposure Pathway – Immobile Compounds

Contaminants that have low transport potential due to their high soil adsorption coefficients, may, over time, become irreversibly adsorbed to soil and therefore “immobile” under normal conditions. Lead and

PCBs are included in the List of Immobile Chemicals per NJDEP Alternative Remediation Standards

Technical Guidance for Soil and Soil Leachate for the Migration to Ground Water Exposure Pathway, Version 1.0, dated May 2021. Per the guidance, the following conditions have been met to in determining the immobile contaminants do not pose a risk of contaminating underlying ground water:

• Remedial Investigation is complete as documented in this Report.

• PCBs and lead are listed as eligible chemicals in the List of Immobile Chemicals per the above-referenced guidance.

• A two-foot clean zone has been documented between the contamination and the water table, providing an adequate separation distance to prevent contaminant transport to the water table over a 100-year time period.

• No conditions are present onsite that may increase the normal mobility of the contaminant(s) of concern.

In support of this evaluation, soil boring logs are included in Appendix E, analytical results from all soil samples are included in Appendix F. Additionally, a table comparing analytical results to the MGW SRS is attached in Tables 2 and 3.

Remedial Investigation Conclusions

Results of the Remedial Investigation confirmed lead-impacted soils were limited to surficial and shallow soils in the vicinity of AOC-1, surrounding the Equipment Building and the Emergency Generator Building.

PCBs were not detected in samples collected during the RI; the extent of PCBs identified during the SI investigation were limited to sample “9” collected north of the Generator Building. Contaminants of concern at the site were determined to be immobile per the NJDEP technical guidance and were determined to not pose a risk in contaminating underlying ground water. Therefore, lead and PCB impacts were delineated to the Residential and Non-Residential Soil Remediation Standards.

Additional remedial action is recommended, including excavation and removal of impacted soils from the subject property, as further discussed in Section 5.0.

REMEDIAL ACTION WORKPLAN

Contaminants of concern at the subject property include lead and PCBs in surficial and shallow soils. The

RI was successful in laterally and vertically delineating soil impacts in exceedance of the NJDEP

Residential and Non-Residential SRS. As summarized in Section 4.3, PCBs and lead were determined to be immobile compounds.

Remedial Action Objectives

The Remedial Action Workplan (RAW) has been prepared to achieve the following remedial action objectives with respect to existing contamination which was delineated during the RI:

• To remediate surficial and shallow soils which exceed NJDEP residential and non-residential SRS

(RID-SRS, RInh-SRS, NRID-SRS, NRInh-SRS) for lead and PCBs to achieve unrestricted use closure in accordance with applicable NJDEP technical guidance.

Remedial Action Selection

To achieve the remedial action objectives, it was determined that the most effective remedial action method would be excavation and removal of contaminated soils offsite. Based on current site conditions and planned demolition of the RCAG Site, it was determined that this remedial action would be the most feasible in achieving unrestricted use closure upon completion.

5.2.1 Soil Excavation

Impacted soils are proposed to be removed from the subject property to the delineated boundary, as depicted on Figure 8. Soils are proposed to be removed from the approximate 4,800 square foot area to a termination depth of 1.5 ft bgs, with the exception of the “hot spot” area located in the vicinity of QPI-SB-136 which will be excavated to a termination depth of 2 ft bgs. It is anticipated that field activities for the excavation and loading of contaminated soil will be initiated in a single continuous mobilization event.

5.2.2 Confirmation Sampling

Confirmation sampling was performed during the RI in place of post-excavation sampling to obtain more accurate volume estimates of soil requiring remediation for remedial action planning purposes. Pre-excavation sampling was conducted in accordance with Section 6.3 of the Soil SI/RI/RA Technical

Guidance, as summarized below.

• One sidewall sample location for every 30 linear feet of sidewall or other appropriate spacing based on the configuration of the excavation to demonstrate horizontal compliance with the remediation standards.

• One base sample from the excavation bottom for every 900 square feet of bottom area.

If the proposed excavation area deviates from the excavation limits defined on Figure 8, additional post-excavation sampling shall be conducted in accordance with the TRSR and applicable NJDEP technical guidance.

5.2.3 Soil Transport Off-Site

All transport of materials will be performed by licensed haulers in accordance with appropriate local, State, and Federal regulations. Haulers will be appropriately licensed and trucks properly placarded.

5.2.4 Soil Disposal

The receiving facility will be selected and approved by the LSRP prior to initiation of the remedy. Once approved, characterization sampling shall be completed in accordance with receiving facility specifications.

5.2.5 Site Restoration

NJ clean fill shall be used to backfill the excavation area back to surrounding grade. Clean fill shall consist of material that meets all soil remediation standards, does not contain extraneous debris or solid waste, and does not contain free liquids. The selected fill material shall be reviewed and approved by the LSRP prior to import to the Site.

6.0 REFERENCES

1. N.J.A.C. 7:26C Administrative Requirements for the Remediation of Contaminated Sites. February 23, 2023.

2. N.J.A.C. 7:26E NJDEP Site Remediation Program Technical Requirements for Site Remediation.

August 6, 2018.

3. NJDEP Contaminated Site Remediation & Redevelopment Ecological Evaluation Technical Guidance.

Version 2.1, May 2023.

4. NJDEP Field Sampling Procedures Manual. March 2024.

5. NJDEP Guidance for the Evaluation of Immobile Chemicals for the Impact to Ground Water Pathway.

June 2, 2008.

6. NJDEP NJ-GeoWeb Geographic Information System Data Viewer.

7. NJDEP Site Remediation Program Data of Known Quality Protocols Technical Guidance. Version 1.0, April 2014.

8. NJDEP Site Remediation Program Data Quality Assessment and Data Usability Evaluation Technical

Guidance. Version 1.0, April 2014.

9. NJDEP Site Remediation Program Technical Guidance for Site Investigation of Soil, Remedial

Investigation of Soil, and Remedial Action Verification Sampling for Soil (Version 1.2). March 2015.

10. NJDEP Site Remediation and Waste Management Program Alternative Remediation Standards

Technical Guidance for Soil and Soil Leachate for the Migration to Ground Water Exposure Pathway

(Version 1.0). May 2021.

11. NJDEP Soil and Soil Leachate Remediation Standards for the Migration to Ground Water Exposure

Pathway Basis and Background. May 2021.

FIGURES

603 MATTISON AVE, UNIT #4300

ASBURY PARK, NJ 07712

DATE

PROJECT NO.

FIGURE

Service Layer Credits: USGS The National Map: 3d Elevation Program, Accessed December 2024

A K

R F

O :\P ro je ct s\

F A

A M

A

TA

W A

N F

A C

IL

IT

Y \S

A R

\R I F ig ur es .a pr x1

/1 9/

:3

P

M F

IG

U

S G

S kv el ik y

0 1,200 2,400

SCALE IN FEET

12/5/2024

240367

USGS TOPOGRAPHIC MAP

BLOCK 153, LOT 108

MARLBORO TWP, MONMOUTH COUNTY, NJ

FAA MATAWAN FACILITY

LEGEND

PARCEL BOUNDARY

o

SITE LOCATIONSITE LOCATION

DATE

PROJECT NO.

FIGURE

REFERENCES: TAX MAP OF MARLBORO TWP, DECEMBER 2022

A K

R F

O :\P ro je ct s\

F A

A M

A

TA

W A

N F

A C

IL

IT

Y \S

A R

\R I F ig ur es .a pr x1

/1 9/

:3

P

M F

IG

T

A X

M A

P kv el ik y

0 100 200

SCALE IN FEET

12/5/2024

240367

TAX MAP

BLOCK 153, LOT 108

MARLBORO TWP, MONMOUTH COUNTY, NJ

FAA MATAWAN FACILITY

LEGEND

PARCEL BOUNDARY

o

DATE

PROJECT NO.

FIGURE

A K

R F

O :\P ro je ct s\

F A

A M

A

TA

W A

N F

A C

IL

IT

Y \S

A R

\R I F ig ur es .a pr x1

/1 9/

:3

P

M A

O C

M A

P kv el ik y

0 25 50

SCALE IN FEET

12/5/2024

240367

ENVIRONMENTAL AREA OF CONCERN (AOC)

LOCATION MAP

BLOCK 153, LOT 108

MARLBORO TWP, MONMOUTH COUNTY, NJ

FAA MATAWAN FACILITY

!H

LEGEND

PARCEL BOUNDARY

APPROXIMATE FENCE LINE

AOC-1: LEAD & PCB

CONTAMINATION IN SOIL FROM

LEAD-BASED PAINTED STRUCTURE

& PCB-CONTAINING MATERIALS

AOC-2: FORMER 550 GAL LEADED

GASOLINE/DIESEL FUEL UST/

AOC-3: 500 GAL DIESEL FUEL AST

!H

AOC-4: POLE MOUNTED

TRANSFORMER

AOC-5: FORMER TOWER #3

AOC-6: FORMER OFFICE BUILDING/

AOC-7: SUSPECTED SEPTIC

SYSTEM o

FORMER

TOWER # 3

TOWER

# 2

TOWER

# 1

EQUIPMENT

BUILDING

SUPPLY WELL

AOC-8: POTENTIAL IMPACTS TO

GROUNDWATER

GENERATOR

BUILDING

DATE

PROJECT NO.

FIGURE

A K

R F

O :\P ro je ct s\

F A

A M

A

TA

W A

N F

A C

IL

IT

Y \S

A R

\R I F ig ur es .a pr x1

/1 9/

:3

P

M T

O W

E R

1k ve lik y

0 5 10

SCALE IN FEET

12/4/2024

240367

AOC-1 (TOWER 1) SOIL SAMPLE RESULTS &

LOCATION MAP

BLOCK 153, LOT 108

MARLBORO TWP, MONMOUTH COUNTY, NJ

FAA MATAWAN FACILITY

SB-82 (1.5-2')

SB-83 (1.5-2')

SB-84 (1.5-2')

SB-85 (0-6")

SB-87 (0-6")

SB-88 (0-6")

SB-89 (0-6")

SB-90 (0-6")

SB-99 (0-6")

SB-17 (0-6")

SB-18 (0-6")

SB-19 (0-6")

SB-20 (0-6")

SB-21 (0-6")

SB-22 (0-6")

SB-23 (0-6")

SB-24 (0-6")

Area of Detail

LEGEND

PARCEL BOUNDARY

APPROXIMATE FENCE LINE

SOIL SAMPLE LOCATION

SOIL SAMPLE RESULTS

RESULTS REPORTED ABOVE NJDEP

MGWSRS

RESULTS REPORTED BELOW

APPLICABLE NJDEP SRS o

TOWER # 1

DATE

PROJECT NO.

FIGURE

A K

R F

O :\P ro je ct s\

F A

A M

A

TA

W A

N F

A C

IL

IT

Y \S

A R

\R I F ig ur es .a pr x3

/1 2/

2:

P

M E

Q U

IP

M

E N

T B

LD

G kv el ik y

0 12 24

SCALE IN FEET

3/12/2025

240367

AOC-1 (EQUIPMENT BUILDING) SOIL SAMPLE

RESULTS & LOCATION MAP

BLOCK 153, LOT 108

MARLBORO TWP, MONMOUTH COUNTY, NJ

FAA MATAWAN FACILITY

SB-56 (1.5-2')

SB-57 (0-6")

SB-59 (0-6")

SB-60 (0-6")

SB-61 (1.5-2')

SB-62 (0-6")

SB-63 (0-6")

SB-64 (1.5-2');

SB-64 (4.5-5')

SB-65 (1-1.5')

SB-66 (0-6")

SB-67 (0-6")

SB-68 (0-6")

SB-69 (0-6")

SB-94 (0-6")

SB-9 (0-6")

SB-10 (0-6")

SB-11 (0-6") SB-12 (0-6")

SB-13 (0-6")

SB-14 (0-6")

SB-15 (0-6") SB-58 (1.5-2')

SB-102 (0-6")

SB-103 (0-6")

SB-104 (0-6")

SB-105 (0-6")

SB-106 (0-6")SB-107 (0-6")

SB-108 (0-6")

SB-110 (0-6")

SB-111 (0-6")

SB-113 (0-6")

Area of Detail

LEGEND

PARCEL BOUNDARY

APPROXIMATE FENCE LINE

SOIL SAMPLE LOCATION

SOIL SAMPLE RESULTS

RESULTS

RESULTS REPORTED BELOW

APPLICABLE NJDEP SRS

RESULTS REPORTED ABOVE NJDEP

MGWSRS

RESULTS REPORTED ABOVE NJDEP

RID-SRS

RESULTS REPORTED ABOVE NJDEP

NRID-SRS o

EQUIPMENT BUILDING

500-GALLON DIESEL FUEL AST

SB-16 (0-6")

DATE

PROJECT NO.

FIGURE

A K

R F

O :\P ro je ct s\

F A

A M

A

TA

W A

N F

A C

IL

IT

Y \S

A R

\R I F ig ur es .a pr x3

/1 2/

2:

P

M G

E N

E R

A T

O R

B

LD