WS-3209_9351_CA_MRP_20230523_Report

WithersRavenel
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115 MacKenan Drive | Cary, NC 27511
t: 919.469.3340 | f: 919.467.6008 | www.withersravenel.com | License No. F-1479
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GROUNDWATER MONITORING REPORT

Virginia’s Gas Station
Incident # 9351
UST# WS-3209
8432 & 8434 US Highway 158
Stokesdale, Guilford County, North Carolina
WithersRavenel Project No. 23-0307-CB

Prepared for:
State of North Carolina
Department of Environmental Quality
Division of Waste Management
Underground Storage Tank Section
Federal & State Lead Program
1646 Mail Service Center
Raleigh, North Carolina 27699-1646

Prepared by:
WithersRavenel
115 Mackenan Drive
Cary, North Carolina 27511
North Carolina Firm License No. F-1479
May 23, 2023

WithersRavenel
Our People. Your Success.
115 MacKenan Drive | Cary, NC 27511
t: 919.469.3340 | f: 919.467.6008 | www.withersravenel.com | License No. F-1479
Asheville | Cary | Charlotte | Greensboro | Lumberton | Pittsboro | Raleigh | Southern Pines | Wilmington
May 23, 2023
Attn: Mr. Mark Petermann RE: Groundwater Monitoring Report Virginia’s Gas Station 8432 & 8434 US Highway 158 Stokesdale, Guilford County, North Carolina Incident # 9351 UST # WS-3209 WithersRavenel Project No. 23-0307-CB Mr. Petermann: WithersRavenel (WR) has completed a groundwater monitoring report for the above-referenced site. These activities were approved in the March 14, 2023, Task Authorization (TA)-01, for Incident Number 9351 under North Carolina Department of Environmental Quality (NCDEQ) Contract # N70522-C. The following report summarizes site activities completed on March 28, 2023. We appreciate the opportunity to be of service to the Federal & State Lead Program. Should you have questions, comments, or require additional information, please contact WR at 919-469-3340. Sincerely,
WithersRavenel
David C. Vail, E.I. Elizabeth A. Allyn, P.G. Environmental Scientist II Environmental Project Geologist II

North Carolina Department of Environmental Quality Division of Waste Management Underground Storage Tanks Section Federal & State Lead Program 1646 Mail Service Center Raleigh, North Carolina 27699-1646
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Table of Contents
A. Site Information ............................................................................................... 1
B. Executive Summary ......................................................................................... 3
C. Site History & Characterization ..................................................................... 6
D. Site Geology and Hydrogeology ................................................................ 10
E. Groundwater Sampling – March 2023 ...................................................... 11
F. NCDEQ Vapor Intrusion Risk Calculator .................................................. 13
G. Conclusions and Recommendations ......................................................... 14

FIGURES
Figure 1 General Location Map
Figure 2 Site Map
Figure 3 Groundwater Hydraulic Gradient Map (ft) (March 28, 2023)
Figure 4 Groundwater Analytical Results Map (March 28, 2023)
Figure 5 Groundwater Benzene Isoconcentration (March 28, 2023)
Figure 6 Receptor Locations
TABLES
Table B-1 Site History: UST/AST System & Other Release Information
Table B-4 Summary of Groundwater Analytical Results
Table B-5A Public & Private Water Supply Well Information
Table B-7 Monitoring & Remediation Well Construction Information
Table B-9 Current and Historical Liquid Level Data & LNAPL Thicknesses
APPENDICES
Appendix A Field Notes and Photographic Record
Appendix B Laboratory Report and Chain of Custody
Appendix C NCDEQ Risk Calculator
Appendix D General Standard Operating Procedures
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A. SITE INFORMATION
1. Site Identification
Date of Report: May 23, 2023
Facility I.D.: 00-0-0000035121
Incident No.: 9351
UST No.: Site Risk: WS-3209
High
Site Rank: H305D
Land Use Category: Commercial
Site Name: Virginia’s Gas Station
Site Location: 8432 & 8434 US Highway 158 North
Nearest City/Town: Stokesdale
County: Guilford
Description of Geographical Data Point: Former UST Basin
Location Method: Google Earth
Latitude: 36.242393°
Longitude: -79.984688°
2. Contact Information
Responsible Party: Unknown
Address: Unknown
Phone: Unknown

Property Owner: WSJ Holdings, LLC
Address: 8420 US HWY 158
Phone: Stokesdale, NC 27357

Property Occupant: Vacant/Unoccupied
Phone: Vacant

Consultant/Contractor: WithersRavenel
Address: 115 MacKenan Drive, Cary, NC 27511
Phone: [phone]

Analytical Laboratory: Waypoint Analytical, Inc. (Waypoint)
State Certification Number: ENV402
Address: 449 Springbrook Rd., Charlotte, NC 28217
Phone: [phone]

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B. EXECUTIVE SUMMARY
1. Summary of Activities Associated with Current TA
WithersRavenel, Inc. (WR), in association with Task Authorization-01 (TA-01) under North Carolina Department of Environmental Quality (NCDEQ) Contract # N70522-C, performed monitoring activities including gauging, purging, and sampling site monitoring wells MW-1, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, MW-10, and recovery well RW-1. WR was also tasked with the collection of water supply well samples from WSW-16, WSW-24, WSW-30, WSW-33, WSW-36 and WSW-37. WR sampled WSW-16. WR found the parcel reported to contain WSW-24 to have an unoccupied/dilapidated structure. Water supply well WSW-24 was unable to be located or sampled. The owner of WSW-30 reported to WR that the well had been abandoned when their residence was connected to municipal water. Due to this, WR was unable to sample this well. The owner of WSW-33 reported to WR that the power to their irrigation well had been disconnected and the well is inactive. Due to this, WR was unable to sample this well. WR obtained permission to sample WSW-36, however, the fire chief informed WR that the power to the well had been cut off to prevent the general public from using the potentially contaminated groundwater. Due to this, WR was unable to sample this well. WR was unable to get a signed access agreement for WSW- 37, however a note and unsigned access agreement was left on their door. Additionally, WR mailed several copies of the agreement to the owner of the property. All samples collected in association with this TA were submitted to Waypoint Analytical for analysis of volatile organic compounds (VOCs) by SM6200B.

2. Soil, Groundwater, and Liquid Non-Aqueous Phase Liquid (LNAPL) Assessment Information
Soil
No soil samples were obtained by WR in association with this task authorization. Several soil samples were obtained from locations within excavated areas from which soil removal was performed during November 2015. Details relating to these activities are discussed in WR’s Initial Remediation Monitoring Report, dated December 21, 2015.
Groundwater
WR collected samples from site monitoring wells MW-1, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, MW-10, and recovery well RW-1 as well as water supply well WSW-16 on March 28, 2023. WR also prepared a field blank and returned a trip blank for quality assurance analysis. The groundwater samples from the sampled monitoring wells and water supply well were submitted for analysis of Volatile Organic Compounds (VOCs) by Standard Method (SM) 6200B. Laboratory analytical results revealed the following:
• The concentration of benzene and 1,2-dibromoethane (EDB) reported in monitoring well MW-3 and recovery well RW-1 exceeded the Gross Contamination Levels (GCLs).
• The concentration of 1,2-dichloroethane reported in monitoring well MW-3 exceeded the GCL.
• Monitoring wells MW-1, MW-3, MW-4, and MW-6 exhibited concentrations exceeding the North Carolina Groundwater Quality Standards (2L Standards) for one or more targeted compounds.
• Monitoring wells MW-7 and MW-10 each exhibited the presence of a targeted compound at a
concentration exceeding the laboratory method quantitation limit (MQL) but below the 2L
Standards for those targeted compounds.
• Monitoring wells MW-5 and MW-8 did not contain concentrations of targeted compounds above the laboratory MQLs.
• Water Supply Well WSW-16 did not contain concentrations of targeted compounds above the laboratory MQLs.
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• The Field Blank and Trip Blank did not contain concentrations of targeted compounds above the
laboratory MQLs.

Light Non-Aqueous Phase Liquid (LNAPL)
LNAPL has historically been measured in wells MW-1, MW-3, MW-4 and RW-1. Levels of LNAPL were
greatest in these wells when measured in June 2003, when LNAPL thicknesses of 1.94, 2.17, 1.57 and 0.28
feet (ft.) were measured in MW-1, MW-3, MW-4 and RW-1, respectively. LNAPL was not measured by WR
within any wells sampled in association with this TA during March 2023.

3. Receptor Information
A receptor survey was not performed by WR during the March 2023 sampling event.
According to previous reports, 41 water supply wells are located within 1,000 ft. of the source area. Several
of the properties with wells are listed as using public water or having it available, while others are listed as
unknown use, active, or irrigation only. According to a Groundwater Gauging, Sampling and Receptor Survey
(2005) report completed by Geological Resources, Inc. (GRI), the area is serviced with municipal water from
Town of Stokesdale. WR identified a single supply well located near the southeastern property line near the
reported location of WSW-5. The well identified at this location is an 8” diameter (dia.) steel-cased well,
filled with concrete to surface grade. Two additional wells (at the reported location of WSW-6) were
identified by WR during excavation activities performed during November 2015. Ms. Mary Jane King (joint
property owner) stated to WR that these were two wells which serviced the former Virginia’s Gas Station.
Ms. King indicated that the smaller of these wells (8” dia.) had been abandoned following the fire that
destroyed the store. Ms. King had no information relating to the remaining (24” dia.) well but assumes that
it was abandoned at the time the 8” dia. well was installed.
Water supply wells WSW-12 and WSW-30 have historically shown impact by one or more target
compounds at levels above the method detection limit (MDL) for SM6200B. Chlorodibromomethane was
detected in the sample from WSW-12 collected in June 2014 at a level exceeding the 2L Standard for the
compound. 1,2-Dichloropropane has been historically reported in samples obtained from WSW-30 (August
2011 and August 2012) at levels above the 2L Standard for the compound. WSW-12 and WSW-30 have
been abandoned.
In August and September 2021, WR conducted a receptor survey update for the site. Letters were mailed
to 12 property owners of properties within 500 feet of the site requesting well construction information
and permission to sample onsite water supply wells. Updated information is included in Table B-5A.
In March 2023, WR was tasked with sampling WSW-16, WSW-24, WSW-30, WSW-33, WSW-36 and
WSW-37. WR was able to collect a sample from WSW-16. WR found the parcel reported to contain WSW-
24 to have an unoccupied/dilapidated structure. Water supply well WSW-24 was unable to be located or
sampled. The owner of WSW-30 confirmed that the well had been abandoned when their residence was
connected to municipal water. The owner of WSW-33 reported to WR that the power to their irrigation
well had been disconnected and the well is inactive. WR obtained permission to sample WSW-36, however,
the fire chief informed WR that the power to the well had been cut off to prevent the general public from
using the potentially contaminated groundwater. WR was unable to get a signed access agreement for
WSW- 37.

4. Remediation Activities
No remediation activities were performed at the site during the March 2023 event.
Remedial actions performed at the site to date have included the removal of the USTs relating to the facility
in 1990 and the performance of three MMPE events (two in 2002 and one in 2006) in efforts to remove
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LNAPL from RW-1. Most recently, WR oversaw the excavation of a collective total of 229.46 tons of petroleum-contaminated soils from the two excavations performed at the site during November 2015. At the conclusion of excavation activities, PeroxyChem Klozur®CR was emplaced at the base of each excavated area to induce contaminant reduction in on-site groundwater through chemical oxidation.

5. Recommendations
Based on the results of assessment activities conducted at the site in association with the current TA, WR recommends the following:
• Continued groundwater sampling of the monitoring well network and water supply well WSW-16;

• Petition owners of down-gradient water supply wells to abandon inactive water supply wells; • Conduct a Remedial Design Characterization study to identify the vertical and horizontal extents and locations of secondary source soil contamination in the area of the site adjacent to the wells exhibiting GCL violations;
• Perform soil excavation to address the GCL impacts; • Evaluate remedial options after the in situ Chemical Oxidation bench scale testing results for the A.G. Jobe site (NCDEQ Incident #30075) are received for GCL exceedances of benzene, 1,2-dichloroethane, and dibromoethane; and • If funding is available, develop a plan to address remaining impacts using selected technology.

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C. SITE HISTORY & CHARACTERIZATION
The Virginia’s Gas Station property is located at 8432-8434 US Highway 158 North, Stokesdale, Guilford County, North Carolina (Figure 1). The subject property currently consists of two vacant lots. The northern portion of the site is covered with grass and the southern end of the site is covered with a small gravel parking lot. Figure 2 is provided as a site map showing the current conditions of the subject property. The subject parcel encompasses an approximate total of 0.16 acres.
1. UST Information The general location of the site is shown on Figure 1. The approximate former location(s) of the UST systems reportedly removed from the site and locations of monitoring wells installed as a part of assessment activities in association with the release are depicted on Figure 2. Four USTs were formerly located in three separate tank beds on the property. Two of the tank beds were located south of the onsite building (now demolished), while the remaining area was located to the west, beneath the former pump island. USTs formerly located on the site are identified in Table B-1. The Pre-Corrective Action Plan (CAP) Report prepared by S&ME in August 2009 states that the USTs were removed in December 1990. Subsequent to their removal, several soil samples were collected from residual soil beneath the USTs. The samples were analyzed for total petroleum hydrocarbons-gasoline range organics (TPH-GRO). Laboratory analysis of the soil samples indicated a release of petroleum had occurred from one or more of the UST systems prior to their closure. No aboveground storage tanks (ASTs) are currently located at the site and no known ASTs have been identified in association with the site.
2. Description of Release/General Assessment History The following summary of the assessment history is based on WR’s review of historical files for the subject incident including:
• Four USTs were removed in December 1990.
• Several soil samples were collected from the former UST tank pits. Laboratory analysis of the soil samples indicated a release of petroleum had occurred from the UST system, with results as high as 950 mg/kg or parts-per-million (ppm).
• Soil assessment activities were conducted in November 1992 by the Guilford County Department of Health, and in December 1996 by ECS. During the assessment activities, 19 soil samples were collected. Results for laboratory analysis of TPH in several soil samples exceeded the NCDENR (now NCDEQ) Action Level in effect at the time of sample collection. According to the historical reports associated with these sampling activities, the extent of soil contamination was defined.
• In August 1995, a groundwater monitoring well (MW-1) was installed and a sample was collected from
the well for laboratory analysis. Analytical results for the groundwater sample indicated the presence
of several petroleum constituents at concentrations above respective 2L Standards.
• In 1997, ECS installed and sampled nine additional groundwater monitoring wells (MW-2/RW-1, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, MW-9 and MW-10). Analytical results for the groundwater samples collected in MW-1, MW-2, and MW-3 through MW-7 indicated the presence of petroleum constituents at concentrations above their respective 2L Standards. Analytical results from perimeter wells, MW-8, MW-9, and MW-10 did not show the presence of VOCs at concentrations that exceeded their respective 2L Standards.
• In March 1997, ECS replaced MW-2 with a 4-inch (in) dia. recovery well (RW-1).
• In April 1997, LNAPL was reported in RW-1.
• In 2001, LNAPL was reported in MW-1, RW-1 and MW-3 ranging in thickness from 0.02 ft. (MW-1) to 2.74 ft. (RW-1).
• Three MMPE events were conducted at the site, two in 2002 and one in 2006.
• In 2004, S&ME abandoned the water supply well located on the Stokesdale Fire Department property (WSW-1) and groundwater monitoring well MW-9.
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• In March of 2008, additional soil assessment was conducted at the site. The resulting report concluded
that petroleum hydrocarbon-impacted soil remained in the area of the former UST basin at
concentrations that exceeded the Residential Maximum Soil Contaminant Concentrations (MSCCs) for
these constituents and might potentially be acting as a secondary source of groundwater contamination.
• Groundwater monitoring events were conducted in 2009, 2011, and 2012. LNAPL measurements have decreased with time in the source area wells (MW-1 and RW-1). Petroleum constituents have continually exceeded the 2L Standards and the GCLs in certain groundwater monitoring wells. Analytical results from the January 2011 event showed MTBE in supply WSW-9 at a concentration beneath the 2L Standard for the compound. Analytical results from the 2012 event indicated 1,2-dichloropropane in supply well WSW-30 at a level in excess of the 2L Standard.
• WR performed a groundwater and supply well sampling event in June 2014 that included the collection of samples from monitoring wells MW-1, MW-3 through MW-8, and RW-1, and supply wells WSW-12 and WSW-37. LNAPL was measured within MW-4 at a thickness of 0.05 foot during the event, and re-measured in August 2014, at which time the well contained 0.07 foot of LNAPL. As such MW-4 was not sampled. One or more petroleum contaminants were reported in samples from wells MW-1, MW-3, MW-6, MW-7 and RW-1 at concentrations above their respective 2L Standards, while one or more target compounds were also reported in excess of their respective GCLs. The laboratory analytical results did not indicate the presence of VOCs in outlying wells MW-5 and MW-8 above their respective 2L Standards. Data for the sample obtained from supply well WSW-12 showed chlorodibromomethane at a level of 0.86 microgram/Liter (µg/L), exceeding the 2L Standard for the compound. The presence of this compound may relate to the chlorination of the well. Data for the supply well sample from WSW-37 did not show any compounds at levels above the MDL for SM6200B.
• WR conducted a groundwater sampling event at the site during April 2015. Analytical data for groundwater samples obtained at the time indicated the presence of one or more compounds at levels above their respective 2L Standard(s) in MW-1, MW-3, MW-4, MW-6 and RW-1. Samples from wells MW-3, MW-4 and RW-1 included one or more compounds at levels exceeding their respective GCLs. No compounds were reported in samples from wells MW-7 or MW-8 at concentrations above the MDL for SM6200B.
• WR supervised the performance of soil excavation activities at the facility during November 2015, to decrease mass availability of contaminants in contact with groundwater in the source area on the site. A collective total of 229.46 tons of petroleum-contaminated soils were removed from the two excavations performed. At the conclusion of excavation activities, PeroxyChem Klozur®CR was emplaced at the base of each excavated area to induce contaminant reduction in the groundwater of the site through chemical oxidation. Following excavation activities, ten soil samples were obtained from locations at the base of the excavated areas. Four “confirmatory” samples were retrieved from each of the two excavated areas (eight samples total), and two additional samples (Disp-1 and Disp-2) were obtained for the purposes of waste characterization. Analytical data for the “confirmatory” samples indicated TPH-GRO in six of the eight samples submitted for analysis by EPA Method 8015. Concentrations detected in these six samples ranged from 7.92 to 2,880 ppm. Levels of TPH-GRO reported in five of these six samples were at concentrations exceeding the minimum reportable concentration (RC) of 10 ppm in place at the time of sample collection.
• WR conducted a limited groundwater sampling event at the site between March 30 and May 12, 2016.
Analytical data for groundwater samples obtained from monitoring wells MW-1, MW-3, MW-4 and
RW-1 indicated the presence of numerous compounds at concentrations exceeding their respective 2L
Standards in each of the four wells sampled during March/May 2016. Benzene and EDB were reported
at concentrations exceeding their respective GCL values in samples from MW-3 and RW-1, while 1,2-
DCA also exceeded the GCL in MW-3.
• WR personnel mobilized to the site on August 11, 2016 for the purposes of conducting reconditioning and repairs of the wells in association with TA-06. Upon arrival at the site, each of the wells targeted for reconditioning or repair was located and opened to allow for access. The manholes and surrounding concrete pads associated with monitoring wells MW-1, MW-3, MW-4 and RW-1 were removed using hand tools. Following removal of surrounding materials and the previously existing manhole structures, additional casing lengths were added to each well using Schedule 40 PVC slip couplings and Schedule
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40 PVC piping appropriate in diameter for the wells on which repairs were made. Following installation of added lengths of PVC “riser”, new flush-mounted 8” diameter bolt-down steel manholes were emplaced at each location. These manholes were encased and surrounded in concrete. Following repairs made to the wells, the top-of-casing (TOC) elevation of each well was measured.
• On June 22, 2017, WR personnel mobilized to the subject site to perform assessment and sampling
activities in accordance with task authorization TA-01 for the facility. Activities included a limited
groundwater sampling event including the purging and sampling of monitoring wells MW-3, MW-4, and
MW-7, and recovery well RW-1. Analytical data for groundwater samples obtained from each of the
four monitoring wells during June 2017 indicated the presence of several compounds at concentrations
exceeding their respective 2L Standards. Benzene and EDB were reported at concentrations exceeding
their respective GCL values in samples from MW-3 and RW-1.
• On January 30, 2018, WR personnel mobilized to the subject site to perform assessment and sampling activities in accordance with task authorization TA-02 for the facility. Activities included a limited groundwater sampling event. Analytical data for the groundwater samples obtained from monitoring wells MW-3, MW-4, MW-7, and RW-1 during January 2018 indicated the presence of several compounds at concentrations exceeding their respective 2L Standards. Benzene and EDB were reported at concentrations exceeding their respective GCL values in samples MW-3 and RW-1, while 1,2-dichloroethane also exceeded the GCL in MW-3.
• On September 16, 2019, WR personnel mobilized to the subject site to perform sampling activities in accordance with task authorization TA-03 for the facility. Activities included the collection and analysis of groundwater samples from monitoring wells MW-1, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, MW-10, and RW-1. Water supply well WSW-37 was inactive and therefore could not be sampled. Analytical data for groundwater samples obtained from monitoring wells MW-1, MW-3, MW-4, MW-6, MW-7, and recovery well RW-1 in September 2019 indicated the presence of several compounds at concentrations exceeding their respective 2L Standards. Benzene and EDB were reported at concentrations exceeding their respective GCL values in samples from MW-3 and RW-1. 1,2-Dichloroethane was reported at a concentration exceeding the GCL in the sample obtained from MW-3.
• On August 30, 2021, WR personnel mobilized to the subject site to perform sampling activities in accordance with TA-01 for the facility. Activities included the collection and analysis of groundwater samples from monitoring wells MW-1, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, MW-10, and RW-1 as well as samples from WSW-36 and WSW-27. Both WSWs were found to be inactive and were not sampled. Data for groundwater samples obtained from monitoring wells MW-1, MW-3, MW-4 and MW-6, MW-7, and recovery well RW-1 in August 2021 indicated the presence of numerous targeted compounds at concentrations exceeding their respective 2L Standards in each well. B enzene and EDB were reported at concentrations exceeding their respective GCL values in the samples from monitoring wells MW-3 and RW-1. MW-3 contained 1,2-Dichloroethane at a concentration exceeding the GCL. Data for groundwater samples obtained as a part of this sampling event, in general, indicated slight to moderate decreases in total BTEX concentrations over the September 2019 sampling event. The most significant of these total BTEX decreases was reported in the sample from monitoring well MW-1 at 36.27%. An increase in BTEX occurred in recovery well RW-1 at 36.23%. These trends are likely attributable to the emplacement of Klozur®CR in November 2015. WR also conducted a receptor survey update for the site. Letters were mailed to 12 property owners of properties within 500 feet of the site requesting well construction information and permission to sample onsite water supply wells. Only two forms were returned to WR. 3. Brief Description of Site Characteristics The site consists of two parcels that are addressed as 8432 and 8434 US Highway 158 in Stokesdale, Guilford County, North Carolina (Figure 1). The Guilford County Parcel Identification Numbers (PINs) for the parcels are 7900986535 and 7900986508, respectively. No structures are currently present on the subject properties. Site groundcover consists of a gravel parking lot in the southern end of the site and grass in the northern end of the site. A gravel road crosses from the site from the north to the south. The site is
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bordered along its southwestern boundary by Main Street (US Highway 158), along the northwestern boundary by Newberry Street, and to the northeast by Ellisboro Road. The southeastern boundary of the site abuts commercially developed properties. The Stokesdale Fire Department is located directly south of the site across US Highway 158. Photographs of site conditions observed during the March 2023 sampling event are included in Appendix A.
4. Information on Receptors/Potential Receptors
According to previous reports, 41 water supply wells are located within 1,000 ft. of the source area. Several of the properties with wells are listed as using public water or having it available, with others listed as unknown use, active, or irrigation only. According to a Groundwater Gauging, Sampling and Receptor Survey (2005) report completed by GRI, the area is serviced with municipal water from the Town of Stokesdale. Crawford Environmental Services, Inc. (CES) included a summary of water supply well information in their August 2012 Groundwater Monitoring Event Letter/Report. WR has incorporated this information into Table B-5 and depicted the supply well locations on Figure 6.
During November 2015, WR verified that supply wells WSW-5 and WSW-6 had at some time been abandoned. Each of these wells was found to be 8-in. dia. steel cased wells which had been abandoned to surface with concrete grout. An additional well, of 24-in. dia. terra-cotta construction, was found immediately adjacent to WSW-6. This well was discovered during soil excavation activities on the southern side of the concrete slab on which the former Virginia’s Gas Station building had been situated. The joint property owner, Ms. Mary Jane King, stated that she believed this well had been abandoned and replaced with the 8-in. dia. well located immediately adjacent.
Based on the North Carolina River Basins Mapping Program, administered by the Office of Environmental Education and Public Affairs, NCDEQ, the site straddles the dividing line between the Roanoke and Cape Fear River Basins; the western portion of the site within the Roanoke, the eastern in the Cape Fear.
The site is not located within the Piedmont Physiographic Region of North Carolina. The NC Source Water Assessment Program (SWAP) administered by the NCDEQ-Public Water Supply Section does not identify any wellhead protection or community supply wells within ½ mile of the source area at the site.
In August and September 2021, WR conducted a receptor survey update for the site. Letters were mailed to 12 property owners of properties within 500 feet of the site requesting well construction information and permission to sample onsite water supply wells. Only two forms were returned to WR.
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D. SITE GEOLOGY AND HYDROGEOLOGY
The Geologic Map of North Carolina (Department of Natural Resources, Division of Land Resources, North Carolina Geologic Survey, 1985) indicates materials underlying the site consist of Metamorphic Rocks of the Charlotte and Milton Belts. These metamorphic rocks consist of biotite gneiss and schist of the Late Proterozoic-Cambrian Period and are described as “Inequigranular and megacrystic; abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, mica schist, and amphibolite. Contains small masses of granitic rock.”
According to the United States Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) Web Soil Survey of Rockingham County, soils underlying the site are classified as Urban land and Dan River loam, which is a frequently flooded soil with slopes of 0% to 2%. The well construction records and field notes from boring logs provided in the April 2018 ECS Groundwater Monitoring Report indicated that soils encountered at the site consisted of clayey silts. Borings logs from the installation of MW-13 and MW-14, as well as the attempted installation of MW-12 indicated that the soils encountered at the site consisted of sandy clays, sandy silts, clayey silts, and sandy silts. Rock was encountered in MW-12 at a depth of 15’ BGS. An attempt was made to offset the well location; however, rock was encountered again in this location, thus the depth to bedrock is assumed to range between 15-ft to at least 30-ft BGS.
Slug test data completed January 1997 calculated hydraulic conductivities in monitoring wells MW-1, MW-3, and MW-5 to be 1.55 x 10-4 cm/s, 3.13 x 10-5 cm/s, and 6.64 x 10-5 cm/s, respectively. Using the average hydraulic conductivity of 8.42 x 10-4 cm/s and an average porosity of 0.07, the groundwater velocity was calculated to be 2.29 x 10-5 cm/s or approximately 23.7 feet per year.
Evaluation of the Eden Northwest, NC Topographic Quadrangle (US Geological Survey, 7.5 Minute Series, 2019) indicates that the subject property is at an approximate elevation of 945 feet above mean sea level (AMSL) at the location of the former UST basin. A scaled portion of the USGS Quadrangle is included as Figure 1. Topography at the site slopes slightly to the west and east. Overland flow from the site would be expected to flow both to the west and east from the site; however, most is captured by man-made drainage conveyances and channeled through storm sewers located along roadways.
Depth to groundwater at the site was measured between 6.95 feet below the Top of Casing (TOC) in monitoring well MW-5 and 19.50 feet below TOC in monitoring well MW-10 in March 2023. WR did not measure LNAPL in any monitoring wells during the March 2023 monitoring event.

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Virginia’s Gas Station (Incident #9351) WR Project # 23-0307-CB Groundwater Monitoring Report May 2023 11
E. GROUNDWATER SAMPLING – MARCH 2023
On March 28, 2023, WR personnel mobilized to the subject property to perform groundwater sampling activities at the facility in association with TA-01 under NCDEQ Contract # N70522-C. The scope of work for this project included the gauging, purging, and sampling of monitoring wells MW-1, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, MW-10, and recovery well RW-1 as well the collection of water supply well samples from WSW-16, WSW-24, WSW-30, WSW-33, WSW-36 and WSW-37. Site activities are more thoroughly described below.
Monitoring Well Sampling Activities
Prior to sampling the monitoring wells located on the site as described below, each well was opened then gauged with a decontaminated interface probe to determine the depth of water and measure the thickness of any LNAPL present in each well. LNAPL was not measured in the monitoring wells associated with this site during the March 2023 sampling event. Depth to groundwater at the site was measured between 6.95 feet below the TOC in monitoring well MW-5 and 19.50 feet below TOC in monitoring well MW-10 in March 2023. Site groundwater flow direction is to the south southeast. This flow direction is consistent with historical groundwater flow directions. Groundwater measurement data for this event is included in Table B-7 and for historical events in Table B-9, while a groundwater elevation map is included as Figure 3. A copy of the field notes for the project and a photographic record are included as Appendix A.
Following the gauging of the wells and prior to sampling, the eight site monitoring wells were purged of at least three volumes of groundwater through the use of new, individual, disposable bailers. The samples were decanted directly from the dedicated bailers into laboratory-prepared sample containers holding appropriate preservative(s) as required. The containers were labeled with appropriate information and the groundwater samples were transported in an ice-chilled cooler under proper chain-of-custody (CoC) procedures to Waypoint Analytical, located in Charlotte, North Carolina for analysis of VOCs by SM6200B. Copies of field notes associated with monitoring activities are included in Appendix A. A copy of the CoC can be found in Appendix B. Field work operating procedures are outlined in Appendix D.
Monitoring Well Analytical Results
Analytical data for the groundwater samples collected from groundwater monitoring wells MW-1, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, MW-10, and recovery well RW-1 revealed the following:
• The concentration of benzene and 1,2-dibromoethane (EDB) reported in monitoring well MW-3 and recovery well RW-1 exceeded the GCLs.
• The concentration of 1,2-dichloroethane reported in monitoring well MW-3 exceeded the GCL.
• Monitoring wells MW-1, MW-3, MW-4, and MW-6 exhibited concentrations exceeding the 2L Standards for one or more targeted compounds.
• Monitoring wells MW-7 and MW-10 each exhibited the presence of a targeted compound at a
concentration exceeding the laboratory MQLs but below the 2L Standards for those targeted
compounds.
• Monitoring wells MW-5 and MW-8 did not contain concentrations of targeted compounds above the laboratory MQLs.
• Water supply well WSW-16 did not contain concentrations of targeted compounds above the laboratory MQLs.
• The Field Blank and Trip Blank did not contain concentrations of targeted compounds above the laboratory MQLs.
These results are shown on Figure 4 and included in Table B-4. A benzene isoconcentration map is provided as Figure 5. Copies of the laboratory analytical report and CoC are included in Appendix B.
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Virginia’s Gas Station (Incident #9351) WR Project # 23-0307-CB Groundwater Monitoring Report May 2023 12
Water Supply Well Sampling Activities
WR was able to sample WSW-16 in association with this TA. Prior to sampling, WR purged the well for a minimum of 10 minutes before collecting a sample from the free-flowing faucet within the commercial space. WR found the parcel reported to contain WSW-24 to have an unoccupied/dilapidated structure and WSW-24 was unable to be located or sampled. The owner of WSW-30 reported to WR that the well had been abandoned when their residence was connected to municipal water. The owner of WSW-33 reported to WR that the power to their irrigation well had been disconnected and the well is inactive. WR obtained permission to sample WSW-36, however, the fire chief informed WR that the power to the well had been cut off to prevent the general public from using the potentially contaminated groundwater. WR was unable to get a signed access agreement to sample WSW- 37.
Water Supply Well Analytical Results
Analytical data for the groundwater samples collected from WSW-16 revealed the following:
• Water Supply Well WSW-16 did not contain concentrations of targeted compounds above the
laboratory MQLs.
• The Field Blank and Trip Blank did not contain concentrations of targeted compounds above the laboratory MQLs.
These results are shown on Figure 4 and included in Table B-4. Copies of the laboratory analytical report and CoC are included in Appendix B.

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Virginia’s Gas Station (Incident #9351) WR Project # 23-0307-CB Groundwater Monitoring Report May 2023 13
F. NCDEQ VAPOR INTRUSION RISK CALCULATOR
In addition to sampling groundwater at the site, WR was tasked with utilizing the NCDEQ Risk Calculator to
assess Vapor Intrusion Risk for the southeast adjoining commercial space and the south adjacent fire station.
WR input the highest reported contaminant concentrations into the NCDEQ Risk Calculator January 2023
Version to assume a worst case scenario. The results are as follows.
Southeast Adjoining Commercial Space
After entering the appropriate data into the risk calculator, it was determined that the risk level is exceeded
for both a Resident and Non-Resident Worker due to calculated risk for vapor intrusion from contaminated
groundwater in the southeast adjoining commercial space within 100-ft of the highest concentrations of
groundwater contamination (MW-3, MW-4, and RW-1).
South Adjacent Fire Station
After reviewing the Risk Calculator User Guide (dated February 2021), WR determined that since the south
adjacent fire station is over 200-ft away from the highest concentrations of groundwater contamination
(MW-3, MW-4, and RW-1) and approximately 140-ft away from the closest up-gradient monitoring well
that exhibited concentrations above the 2L Standard (MW-6) and approximately 85-ft away from an up-
gradient monitoring well that did not exhibit any 2L exceedances (MW-7), there is an incomplete pathway
between the plume of groundwater contamination and the fire station. Thus, the fire station is not expected
to be at risk for vapor intrusion at this time. However, should groundwater contamination concentrations
continue to increase in MW-6 and MW-7, recalculating the risk for the fire station may be warranted.
A copy of the NCDEQ Risk Calculator is included as Appendix C.

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Virginia’s Gas Station (Incident #9351) WR Project # 23-0307-CB Groundwater Monitoring Report May 2023 14
G. CONCLUSIONS AND RECOMMENDATIONS
This report documents the results of field activities conducted at the site for TA-01, which included the gauging, purging, and sampling of nine site monitoring wells MW-1, MW-3 through MW-8, MW-10, and remediation well RW-1 and one water supply well (WSW-16). Conclusions based on observations, analytical data, and research relating to the release at the site combined with historical information include the following:
• Based on current and historical groundwater elevation data collected from the site, groundwater flows in an overall south southeasterly direction.
• Analytical results for the samples collected from site monitoring wells indicated several targeted VOCs at concentrations exceeding the established GCLs and numerous targeted VOCs at concentrations exceeding the 2L Standards during the March 2023 sampling event.
o Based on historical and current groundwater data for the site, the extent of groundwater contamination at the facility has not been defined to levels equivalent to the 2L Standards to the northeast, east, southeast, southwest, west and northwest.
• LNAPL was not measured during the March 2023 monitoring event. LNAPL has been historically measured in MW-1 most recently in 2011, RW-1 most recently in 2006, MW-3 most recently in 2006, and MW-14 most recently in 2014.
• A receptor survey update was performed in August and September 2021, however, only two of the
twelve mailed forms were returned. Based on the existing records, nine active potable water supply
wells are located within 1,000 feet of the site. Four non-potable (irrigation and pool use) wells are
located within 1,000 feet of the site. Twelve inactive water supply wells are located within 1,000 feet
of the site.
• The risk levels for a Resident and Non-Residential Worker were exceeded for vapor intrusion calculators with a pathway of contaminated groundwater to indoor air for the southeast adjoining commercial buildings within 100-ft of the monitoring wells exhibiting the highest levels of contamination (MW-3, MW-4, RW-1).
• Due to the distance between the area of contaminated groundwater and the south adjacent fire station, an incomplete pathway is present and risk was not calculated. The fire station is not expected to be at risk for vapor intrusion at this time. However, should groundwater contamination concentrations continue to increase in MW-6 and MW-7, recalculating the risk for the fire station may be warranted.
Based on the results of assessment and monitoring activities conducted at the site in association with this TA, WR recommends the following:
• Continued groundwater sampling of the monitoring well network and water supply well WSW-16; • Petition owners of down-gradient water supply wells to abandon inactive water supply wells;

• Conduct a Remedial Design Characterization study to identify the vertical and horizontal extents and locations of secondary source soil contamination in the area of the site adjacent to the wells exhibiting GCL violations; • Perform soil excavation to address the GCL impacts;
• Evaluate remedial options after the in situ Chemical Oxidation bench scale testing results for the
A.G. Jobe site (NCDEQ Incident #30075) are received for GCL exceedances of benzene, 1,2-
dichloroethane, and dibromoethane; and

• If funding is available, develop a plan to address remaining impacts using selected technology.

Figures

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SUBJECT SITE
±0.16 ACRE
(COMBINED AREA)
SCALE:FIGURE NO.:
PROJECT NO.:DATE:APPROVED BY:
GENERAL LOCATION MAP
WithersRavenel
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115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com
1"=500 '
GRAPHIC SCALE
1 inch = 500 ft.
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VIRGINIA'S GAS STATION (TF#9351)
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ESTIMATED FORMER LOCATION OF PUMP ISLANDMW-8MW-10N
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TUS HIGHWAY 158(MAIN STREET)MW-9(Abandoned)CONCRETE SLAB(FORMER VIRGINIA'S GAS STA.)MW-5ESTIMATED LOCATIONS OFFORMER 1,000-GALLONGASOLINE USTSESTIMATED LOCATION OFFORMER 4,000-GALLONGASOLINE USTMW-1MW-7MW-6MW-4MW-3RW-1DCV
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8432 & 8434 US HIGHWAY 158 (MAIN STREET)
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SITE MAPWithersRavenel
Engineers | Planners | Surveyors
115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com
1"=50 'LEGENDTYPE II MONITORING WELL LOCATIONNOTES: 1.) AERIAL OBTAINED FROM THE LOCAL COUNTY GIS DEPARTMENT.GRAPHIC SCALE1 inch = 50 ft.05025100
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TUS HIGHWAY 158(MAIN STREET)MW-9(Abandoned)MW-5(87.99)(93.31)(86.73)(85.10)(83.80)MW-1(88.07)(87.78)(88.23)MW-7(86.02)86.0084.0088.0090.0092.00MW-6MW-4MW-3RW-1DCV
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GROUNDWATER
HYDRAULIC GRADIENT MAP (ft)
MARCH 28, 2023
WithersRavenel
Engineers | Planners | Surveyors
115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com
1"=40 'LEGENDTYPE II MONITORING WELL LOCATIONGROUNDWATER ELEVATION (RELATIVE ft)GROUNDWATER ELEVATION CONTOUR (RELATIVE ft)DASHED WHERE INFERREDINFERRED GROUNDWATER FLOW DIRECTIONNOTES:1.AERIAL OBTAINED FROM THE LOCAL COUNTY GIS DEPARTMENT.2.(NM) DENOTES "NOT MEASURED"3.WELL AND GROUNDWATER ELEVATIONS RELATIVE TO ARBITRARY SITE BENCHMARKESTABLISHED AT THE TOP OF CASING FOR MONITORING WELL MW-1, ASSIGNED ANELEVATION OF 100.53 ft BASED ON SURVEY COMPLETED BY WR ON AUGUST 11, 2016.GRAPHIC SCALE1 inch = 40 ft.0402080(86.39)
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GROUNDWATER
ANALYTICAL RESULTS
MARCH 28, 2023
WithersRavenel
Engineers | Planners | Surveyors
115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com
1"=40 'LEGENDTYPE II MONITORING WELL LOCATIONNOTES: 1.) AERIAL OBTAINED FROM THE LOCAL COUNTY GIS DEPARTMENT.GRAPHIC SCALE1 inch = 40 ft.0402080
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TUS HIGHWAY 158(MAIN STREET)MW-9(Abandoned)MW-5MW-1MW-7(<50.0)(<0.500)(<0.500)(<0.500)(0.520 H)MW-6(37.1)MW-4(25,000)(19,100)MW-3(1,230)RW-15,0001.0DCV
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GROUNDWATER BENZENE
ISOCONCENTRATION MAP
MARCH 28, 2023
WithersRavenel
Engineers | Planners | Surveyors
115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com
1"=40 'LEGENDTYPE II MONITORING WELL LOCATIONBENZENE CONCENTRATION (ug/L)BENZENE CONCENTRATION (ug/L)VALUE EXCEEDS GCLESTIMATED EXTENT OF GROUNDWATER BENZENE CONTAMINATION AT LEVELS EXCEEDING 2L STANDARDESTIMATED EXTENT OF GROUNDWATER BENZENE CONTAMINATION AT LEVELS EXCEEDING GCLNOTES: 1.) AERIAL OBTAINED FROM THE LOCAL COUNTY GIS DEPARTMENT.GRAPHIC SCALE1 inch = 40 ft.0402080(78)(22,000)
© 2023 Microsoft Corporation © 2023 Maxar ©CNES (2023) Distribution Airbus DS TROUBLESOMECREEKTROUBLESOMECREEKDCV
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PROJECT NO.:DATE:APPROVED BY:
VIRGINIA'S GAS STATION (TF#9351)
8432 & 8434 US HIGHWAY 158 (MAIN STREET)
STOKESDALE, GUILFORD COUNTY, NC
RECEPTOR LOCATIONSWithersRavenel
Engineers | Planners | Surveyors
115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com
1"=300 'GRAPHIC SCALE1 inch = 300 ft.0300150600LEGENDACTIVE / UKNOWN WATER SUPPLY WELL LOCATIONABANDONED WATER SUPPLY WELL LOCATIONINACTIVE WATER SUPPLY WELL LOCATIONIRRIGATION WATER SUPPLY WELL LOCATIONNOTES:1.WATER SUPPLY WELL LOCATIONS BASED ON CRAWFORDENVIRONMENTAL SERVICES, INC. FIGURE 2, GROUNDWATERMONITORING/LETTER REPORT, NOVEMBER 9, 2012.2.SUPPLY WELLS WSW-5 AND WSW-6 ARE KNOWN TO HAVE BEENABANDONED.3.WR HAS NOT PERFORMED AN UPDATED RECEPTOR SURVEY TOVERIFY THE LOCATIONS AND STATUS' OF SURROUNDINGSUPPLY WELLS.

Tables

UST IDNumberCurrent/LastContentsPreviousContentsCapacity(gallons)ConstructionDetailsTankDimensions (diameter x length) (ft)Description ofAssociatedPiping & PumpsDate of TankInstallationStatus ofUSTWas release associated with UST System? (Y/N)1 Gasoline Gasoline 4,000 Unknown Unknown Unknown UnknownPermanently Closed by Removal (1990)Y2 Gasoline Gasoline 1,000 Unknown Unknown Unknown UnknownPermanently Closed by Removal (1990)Y3 Gasoline Gasoline 1,000 Unknown Unknown Unknown UnknownPermanently Closed by Removal (1990)Y4 Gasoline Gasoline 550 Unknown Unknown Unknown UnknownPermanently Closed by Removal (1990)YAST IDNumberCurrent/LastContentsPreviousContentsCapacity(in gallons)ConstructionDetailsTankDimensions (diameter x length) (ft)Description ofAssociatedPiping & PumpsDate of TankInstallationStatus ofASTWas release associated with AST System? (Y/N)N/A N/A N/A N/A N/A N/A N/A N/A N/A N/AIncidentNumberMaterialReleasedDateofRelease9351 Gasoline UnknownNotes:1.) 8432 & 8434 Highway 158Stokesdale, Guilford County, NCDescription of ReleaseN/A = Not Available. WR is not aware of any ASTs associated with the subject site.Incident # 9351Table B‐1Site History:  UST/AST System & Other Release InformationVIRGINIA'S GAS STATIONUST release was detected via analtyical results of soil samples collected during UST removal activities in 1990.Page 1 of 1
Benzenen-Butylbenzenesec-Butylbenzenetert-ButylbenzeneChlorodibromomethaneChloroethaneChloroform1,2-Dibromoethane (EDB)1,2-Dichloroethane1,2-DichloropropaneEthylbenzeneDi-isopropyl etherIsopropylbenzenep-Isopropyltoluene2-Hexanone2-Butanone (MEK)Methyl tert-butyl ether4-Methyl-2-pentanone (MIBK)Naphthalenen-PropylbenzeneStyreneToluene1,1,2-Trichloroethane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal Xylenes71-43-2 104-51-8 135-98-8 98-06-6 124-48-1 75-00-3 67-66-3 106-93-4 107-06-2 78-87-5 100-41-4 108-20-3 98-82-8 99-87-6 591-78-6 78-93-3 1634-04-4 108-10-1 91-20-3 103-65-1 100-42-5 108-88-3 79-00-5 95-63-6 108-67-8 1330-20-78/29/2012 200ND ND NR NR NR ND ND ND ND2000ND92ND NR ND ND ND550 200 100 10000ND1900 600 140006/19/2014 93 18<50 <50 <50 <50 <50 <50 <50 <50770<5025<50 NR <500 <50 <500800 48<504100<501100 320 7800 4/22/2015 99<10<10<10<10<50<50<10<10<101400<1051<10 NR <100 <10 <100430 110 78 5600<101500 440 112005/12/2016<100 <10 <10 <10 <10 <50 <50 <10 <10 <101050<1038.5<10 NR <100 <10 <100319 84.1 54.4 4960<101020 328 102609/16/2019 78<0.512 8.8<0.5 <0.5 <0.5 <0.5 <0.5 <0.51400<0.543 13NR <0.5 <0.5 <0.5410 81 64 3700<0.51400 390 98008/30/2021<50.0 <50.0 <50.0 <200 <50.0 <100 <50.0 <50.0 <50.0 <50.02090<50.0100<50.0 <100 <500 <100 <100901 239 80.2 3120<50.02740 900 152003/28/2023<50.0 <50.0 <50.0 <200 <50.0 <100 <50.0 <50.0 <50.0 <50.01830<50.070.8<50.0 <100 <500 <100 <100661 152 63.9 2490<50.01880 665 123003/27/200728000NR NR NR NR NR NR580ND NR3300 4500NA NR NR NR3800NR6400NA NA36000NR NA NA190002/13/200823500NR NR NR NR NR NR720ND NR8540 3620NA NR NR NR2570NR3610NA NA50200NR NA NA529007/22/200922700NR NR NR NR NR NR525392NR2100 4120ND NR NR NR3960NR834 221 97.3 26300NR2600 709 156601/18/201126600NR NR NR NR NR NR504398NR2240 4090ND NR NR NR5330NR1280 219ND28800NR2240 481 190408/29/201230000ND ND NR NR NR ND660460ND2400 4100 90ND NR ND7200ND850 230 98 34000ND2400 680 190006/19/20142200028<120 <120 <120 <120 <120350290<1201300 2200 35<120 NR <12005300<1200 <120078 180 23000<1202100 520 13200 4/22/2015180009.9 7.8 2.6<15.8<5 <500 <500 <11800 1800 55 6.4NR200 4100 24<2500130 66 22000 15 2400 690 151005/12/201621300<20 <20 <20 <20 <100 <100391214<201030 1800 32<20 NR <2003620<200535 70.7 50.2 21900<201550 455 90506/22/201723200<50 <50 <50 <50 <250 <250392182<501550 1480 43.6<50 NR <5003060<500544 113 65.4 25600<501690 470 113701/30/201824300<250 <250 <250 <250 <1250 <1250454<250 <2501830 1640<250 <250 <2500 <25003610<2500 <1250 <250 <25030600<2501810 566 133509/16/201922000<5089<50<50<50<50470250<501300 1600<5086<2500 <504700<50650 87 66 22000<502000 570 110008/30/202126900<50.0 <50.0 <200 <50.0 <100 <50.0480267<50.02100 2020 84.6<50.0 <100 <5005600<1001010 209 91.6 32300<50.03170 961 154003/28/20232500010.1 8.77<20.0 <5.00 <10.0 <5.00305121<5.001350 999 40.8 9.40<10.0 <50.02130<10.0592 86.0 62.2 25300<5.002460 872 130003/27/200721000NR NR NR NR NR NR480ND NR2600 1300NA NR NR NR5000NR ND NA NA34000NR NA NA113007/22/200925500NR NR NR NR NR NR12803170NR5930 3210 225NR NR NR23300NR2330 716 244 39800NR6120 1450 316001/18/201118800NR NR NR NR NR NR4541380NR2930 1470ND NR NR NR9760NR1290 266ND28800NR1640 237 166208/29/201223000ND ND NR NR NR ND6901500ND3000 1500 110ND NR ND910060 J850 300 110 34000ND2300 600 160006/18/201414000<250 <250 <250 <250 <250 <2501501400<2501800 960<250 <250 NR <25007800<2500 <2500120 100 17000<2501200 260 8100 4/22/201515000<500 <500 <500 <500 <2500 <2500 <500830<5002800 940<500 <500 NR <50005900<5000 <2500 <500 <50025000<5002200 580 143003/30/201618400<50 <50 <50 <50 <250 <250476669<502010 930 69.1<50 NR <5002620<500663 185 76.5 25400<501500 387 100006/22/201714200<500 <500 <500 <500 <2500 <2500 <500 <500 <5001370 467<500 <500 NR <5000880<5000 <2500 <500 <50019800<500995 278 73201/30/201817600<100 <100 <100 <100 <500 <500517662<1002230 789<100 <100 <1000 <10002610<1000674 195<10031800<1001490 390 110609/16/201926000<5088<50<50<50<503901300<502500 1300 78<50 <1000 <5007900<100790 200 99 36000<501900 470 130008/30/202120400120<50.0 <200 <50.0 <100 <50.0227977<50.02900 1290 166<50.0 <100 <5005990<1001280 493 98 30100<50.03780 1050 168003/28/202319100<50.0 <50.0 <200 <50.0 <100 <50.0348570<50.01850 793 72.7<50.0 <100 <5002130<100850 171 74.9 28600<50.02350 619 135007/22/20097570NR NR NR NR NR NR131ND NR2610ND106NR NR NR ND NR1020 312 112 26300NR3090 778 157701/18/20115990NR NR NR NR NR NR ND ND NR2300ND ND NR NR NR ND NR1240 207 207 22900NR1690 286 166008/29/20127500130 57NR NR NR ND81ND ND2900 15 190 220NR ND ND ND1000 530 110 27000ND3500 950 20000 4/22/2015 4200 18 13<10<10<50<5070<10 <102000<1080<10 NR <100 <10 <100720 190 93 18000<102000 520 129003/30/2016 2160<50 <50 <50 <50 <250 <250 <50 <50 <501640<5070.8<50 NR <500 <50 <500722 175<5011700<502070 574 101606/22/2017 3860<500 <500 <500 <500 <2500 <2500 <500 <500 <5001980<500 <500 <500 NR <5000 <500 <50002540 204<50015300<5002260 591 117801/30/2018 3720<25 <25 <25 <25 <125 <12532.3<25 <251900<2573.2<25 <250 <250 <25 <250697 187<2520100<251940 500 110109/16/2019 2600 9.3 16 7.6<5.0 <5.0 <5.019<5.0 <5.01400<5.043 16<250 <50 <10 <50670 81 48 15000<5.02300 540 110008/30/2021 1260<50.0 <50.0 <200 <50.0 <100 <50.0 <50.0 <50.0 <50.01290<50.072.7<50.0 <100 <500 <100 <100946 163<50.07950<50.03040 900 97003/28/20231230 81.5<50.0 <200 <50.0 <100 <50.0 <50.0 <50.0 <50.0871<50.0 <50.058.0 113<500 <100 <100719 91.4<50.09190<50.02990 911 119006/18/2003ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NR NA NA ND9/9/2004ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR3.3NR NA NA2.611/15/2005ND NR NR NR NR NR NR ND ND NR1.5ND NA NR NR NR ND NR20.6NA NR3.2NR NA NA9.73/27/2007ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR1.2NR NA NA ND2/13/2008ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NR NA NA ND8/29/2012ND ND ND NR NR NR ND ND ND ND ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND6/18/2014<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NR <5.0 <0.50 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <1.09/16/2019<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NR <5.0 <0.50 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <1.08/30/2021<0.500 <0.500 <0.500 <2.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.5003/28/2023<0.500 <0.500 <0.500 <2.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.5006/18/2003ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NA ND NR NA NA ND9/9/2004ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NA ND NR NA NA ND11/15/2005ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NA ND NR NA NA ND3/27/2007ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NA ND NR NA NA ND2/13/2008ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NA ND NR NA NA ND7/22/2009 223NR NR NR NR NR NR ND ND NR1210ND46.7NR NR NR ND NR534 139 24.4 3650NR1500 454 72901/18/2011 130NR NR NR NR NR NR ND ND NR1370ND35.4NR NR NR ND NR360 112ND3010NR1280 334 90808/29/2012 340 13 10NR NR NR ND ND ND ND1500ND76 8.6NR76ND49 450 190 15 5500ND1600 500 93006/18/2014 130 16 5.5<25<25<25<25<25<25<251100<2540<25 NR <250 <25 <250 <25094<252600<251100 280 6300 4/22/2015 69 5.6 4.1 1.9<1 <5 <5 <1 <1 <11000<140 3.8NR <10 <113<50096<11900<11100 300 64009/16/2019 56 9.4 13 8.7<1 <5 <5 <5 <5 <1940<147 13NR <50 <1017 350 110 6.2 1300<51200 310 64008/30/2021 19.4 9.46 7.82 3.09<0.500 <1.00 <0.500 <0.500 <0.500 <0.5001100<0.50063.4 7.07 34.4<5.00 <1.0010.8 472 178 5.6 539<0.5001580 460 66903/28/202337.18.377.312.93<0.500 <1.00 <0.500 <0.500 <0.500 <0.500886 H 1.04 59.2 6.79 39.7<5.001.84 18.3 319 H 146 H 40.0 376 H<0.5001390 H 393 H 5310 H1 70 70 70 0.4 NL 70 0.02 0.4 0.6 600 70 70 25 40 4,000 20 100 6 70 70 600 0.6 400 400 5005,000 5,900 8,800 14,750 400 NL 70,000 50 400 600 80,000 70,000 30,500 11,700 40,000 4,000,000 20,000 100,000 6,000 26,100 70,000 260,000 600 28,500 24,100 50,0005 NL NL NL NL NL NL NL 5 5 700 NL NL NL NL NL NL NL NL NL 100 1,000 5 NL NL 10,000Notes:NL= Not ListedNA= Compound Not Analyzed for by Laboratory.NR= Compound Not Reported By Previous ConsultantsND= Compound Not Detected.Result= Result Exceeds Laboratory Detection LimitsResult= Result Exceeds 2L StandardResult= Result Exceeds GCL ValueAnalytical MethodMW-6VOCs by SM6200BDateCollectedMW-1VIRGINIA'S GAS STATION 5.) US EPA MCL = "Maximum Contaminant Level"—The highest level of a contaminant that is allowed in drinking water established by US Environmental Protection Agency as interpreted through the National Primary Drinking Water Regulations. NOTE: Standard as applied to this table only shown for samples from water supply wells. 4.) GCLs for Groundwater = NCDENR UST Section Gross Contamination Levels for GroundwaterRW-1MW-3MW-4 3.) NC 2L Standard - North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02L 1.) All results provided in ug/L (micrograms per liter) or parts per billion 2.) Compounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. TABLE B-4Stokesdale, Guilford County, NCIncident # 9351SUMMARY OF GROUNDWATER ANALYTICAL RESULTSGCLs for Groundwater8432 & 8434 Highway 158MW-5SampleIDNC 2L Standard US EPA MCLPage 1 of 2
Benzenen-Butylbenzenesec-Butylbenzenetert-ButylbenzeneChlorodibromomethaneChloroethaneChloroform1,2-Dibromoethane (EDB)1,2-Dichloroethane1,2-DichloropropaneEthylbenzeneDi-isopropyl etherIsopropylbenzenep-Isopropyltoluene2-Hexanone2-Butanone (MEK)Methyl tert-butyl ether4-Methyl-2-pentanone (MIBK)Naphthalenen-PropylbenzeneStyreneToluene1,1,2-Trichloroethane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal Xylenes71-43-2 104-51-8 135-98-8 98-06-6 124-48-1 75-00-3 67-66-3 106-93-4 107-06-2 78-87-5 100-41-4 108-20-3 98-82-8 99-87-6 591-78-6 78-93-3 1634-04-4 108-10-1 91-20-3 103-65-1 100-42-5 108-88-3 79-00-5 95-63-6 108-67-8 1330-20-7Analytical MethodVOCs by SM6200BDateCollectedVIRGINIA'S GAS STATIONTABLE B-4Stokesdale, Guilford County, NCIncident # 9351SUMMARY OF GROUNDWATER ANALYTICAL RESULTS8432 & 8434 Highway 158SampleID6/18/2003ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND9/9/2004ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND11/15/2005ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND3/27/2007ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND2/13/2008ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND7/22/2009 341NR NR NR NR NR NR4.6 78.7NR17.2 536 1.1NR NR NR226NR12.2 1.8NR34 1.1 17.5 4.9 94.41/18/2011 968NR NR NR NR NR NR3.9 80.1NR72.8 658 2.7NR NR NR441NR31.6 6.1NR159ND66.6 19.1 416.18/29/2012 1400ND ND NR NR NR ND6 110ND85 630 6.2ND NR ND580ND45 9.8ND23ND150 50 3706/18/2014 120 0.15<0.50 <0.50 <0.50 <0.50 <0.500.27 15<0.504.6 65 0.46<0.50 NR <5.076<5.0 <5.00.59<0.500.93<0.50 <0.500.33 2.84 4/22/2015<1 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <1 NR <10 <1 <10 <5 <1 <1 <5 <1 <1 <1 <26/22/2017 3.81<1 <1 <1 <1 <5 <5 <1 <1 <1 <12.52<1 <1 NR <102.92<10<5<1<1<1<1<1<1<21/30/2018 39.4<1 <1 <1 <1 <5 <5 <118.2<1 <1106<1 <1 <10 <10174<107.83<1 <1 <1 <11.52<12.29/16/2019 34<0.50.88<0.5 <0.5 <0.5 <0.5 <0.59.6<0.5 <0.555<0.5 <0.5 <10 <1.0100<1.03.6<0.5 <0.5 <0.5 <0.50.58<0.51.78/30/2021 22.6<0.500 <0.500 <2.00 <0.500 <1.00 <0.500 <0.5006.33<0.5002.06 42.8 0.738<0.500 <1.00 <5.0064.1<1.005.12 0.761<0.500 <0.500 <0.500 <0.500 <0.500 <0.5003/28/20230.520 H<0.500 H <0.500 H <2.00 H <0.500 H <1.00 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <1.00 H <5.00 H <1.00 H <1.00 H <1.00 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H6/18/2003ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND9/9/2004ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND11/15/2005ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND3/27/2007ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND2/13/2008ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND7/22/2009 5.6NR NR NR NR NR NR ND ND NR ND ND ND NR NR NR ND NR ND ND NR ND ND1.1ND1.881/18/2011 4NR NR NR NR NR NR ND ND NR ND ND ND NR NR NR ND NR3.6ND NR ND ND ND ND0.938/29/2012ND ND ND NR NR NR ND ND ND ND ND0.77ND ND NR ND ND ND ND ND ND ND ND ND ND ND6/18/2014 0.27<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NR <5.0 <0.50 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <1.0 4/22/2015<1 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <1 NR <10 <1 <10 <5 <1 <1 <5 <1 <1 <1 <29/16/2019<1 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <1 NR <10 <1 <10 <5 <1 <1 <5 <1 <1 <1 <28/30/2021<0.500 <0.500 <0.500 <2.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.5003/28/2023<0.500 H <0.500 H <0.500 H <2.00 H <0.500 H <1.00 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <1.00 H <5.00 H <1.00 H <1.00 H <1.00 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 H <0.500 HMW-9 6/18/2003ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND6/18/2003ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND9/9/2004ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND11/15/2005ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND3/27/2007ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND2/13/2008ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND7/22/2009ND NR NR NR NR NR NR ND ND NR ND ND ND NR NR NR ND NR ND ND NR ND ND ND ND ND8/29/2012ND ND ND NR NR NR ND ND ND ND ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND9/16/2019<0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.58/30/2021<0.500 <0.500 <0.500 <2.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.5003/28/2023<0.500 <0.500 <0.500 <2.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <1.00 <1.00 <1.00 <0.500 <0.5001.67<0.500 <0.500 <0.500 <0.500WSW-12 6/19/2014<0.50 <0.50 <0.50 <0.500.86<0.5068<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NR <5.0 <0.50 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <1.0WSW-16 3/28/2023<0.500 <0.500 <0.500 <2.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.5003/27/2007ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND2/13/2008ND NR NR NR NR NR NR ND ND NR ND ND NA NR NR NR ND NR ND NA NR ND NA NA NA ND7/22/2009ND NR NR NR NR NR NR ND ND NR ND ND ND NR NR NR ND NR ND ND NR ND ND ND ND ND2/13/2008ND NR NR NR NR NR NR ND ND NR ND ND ND NR NR NR ND NR ND ND NR ND ND ND ND ND1/18/2011ND NR NR NR NR NR NR ND ND NR ND ND ND NR NR NR ND NR ND ND NR ND ND ND ND ND8/11/2011ND NR NR NR NR NR NR ND ND NR ND ND ND NR NR NR ND NR ND ND NR ND ND ND ND ND8/29/2012ND ND ND NR NR NR ND ND ND ND ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND ND8/11/2011NR NR NR NR NR NR NR NR NR0.79NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR NR8/29/2012ND ND ND NR NR NR ND ND ND1.1ND ND ND ND NR ND ND ND ND ND ND ND ND ND ND NDWSW-37 6/19/2014<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NR <5.0 <0.50 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <1.0Field Blank3/28/2023<0.500 <0.500 <0.500 <2.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500Trip Blank3/28/2023<0.500 <0.500 <0.500 <2.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.5001 70 70 70 0.4 NL 70 0.02 0.4 0.6 600 70 70 25 40 4,000 20 100 6 70 70 600 0.6 400 400 5005,000 5,900 8,800 14,750 400 NL 70,000 50 400 600 80,000 70,000 30,500 11,700 40,000 4,000,000 20,000 100,000 6,000 26,100 70,000 260,000 600 28,500 24,100 50,0005 NL NL NL NL NL NL NL 5 5 700 NL NL NL NL NL NL NL NL NL 100 1,000 5 NL NL 10,000Notes:NL= Not ListedNA= Compound Not Analyzed for by Laboratory.NR= Compound Not Reported By Previous ConsultantsND= Compound Not Detected.Result= Result Exceeds Laboratory Detection LimitsResult= Result Exceeds 2L StandardResult= Result Exceeds GCL Value 3.) NC 2L Standard - North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02LWSW-21GCLs for Groundwater 2.) Compounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. 1.) All results provided in ug/L (micrograms per liter) or parts per billionMW-8MW-7MW-10 5.) US EPA MCL = "Maximum Contaminant Level"—The highest level of a contaminant that is allowed in drinking water established by US Environmental Protection Agency as interpreted through the National Primary Drinking Water Regulations. NOTE: Standard as applied to this table only shown for samples from water supply wells.NC 2L Standard WSW-30US EPA MCL 4.) GCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for GroundwaterPage 2 of 2
Easting Northing
8403 Newberry St. 8400 Newberry St.
Stokesdale, NC 27357 Stokesdale, NC 27357
8500 US Highway 158 PO Box 294
Stokesdale, NC 27357 Stokesdale, NC 27357
8300 Strand Dr. 8302 Strand Dr.
Stokesdale, NC 27357 Stokesdale, NC 27357
8400 Newberry St. 8400 Newberry St.
Stokesdale, NC 27357 Stokesdale, NC 27357
8432 US Highway 158 8446 Linville Rd.
Stokesdale, NC 27357 Oak Ridge, NC 27310
8434 US Highway 158 8446 Linville Rd.
Stokesdale, NC 27357 Oak Ridge, NC 27310
8406 US Highway 158 PO Box 294
Stokesdale, NC 27357 Stokesdale, NC 27357
WSW-8 8306 Strand Dr. 5429 Rillan Ct.Potable Supply Unknown Unknown 655 Up-gradient NM NM
WSW-40 Stokesdale, NC 27357 Burke, VA 22015 Potable Supply Unknown Unknown 790 Up-gradient NM NM
8309 Newberry St. PO Box 126
Stokesdale, NC 27357 Stokesdale, NC 27357
8202 Strand Dr. 8202 Strand Dr.
Stokesdale, NC 27357 Stokesdale, NC 27357
8414 Shilling St. 985 Washburn Rd
Stokesdale, NC 27357 Madison, NC 27025
8410 Shilling St. 7984 Lester Rd.
Stokesdale,NC 27357 Stokesdale,NC 27357
8403 Shilling St. 8403 Shilling St.
Stokesdale, NC 27357 Stokesdale, NC 27357
8407 Shilling St. 7926 US Highway 158
Stokesdale, NC 27357 Stokesdale, NC 27357
8406 Shilling St. 8406 Shilling St.
Stokesdale, NC 27357 Stokesdale, NC 27357
8602‐8606 Ellisboro Rd. 8133 Belews Creek Rd.
Stokesdale, NC 27357 Stokesdale, NC 27357
8710 Ellisboro Rd. 5429 Rillan Ct.
Stokesdale, NC 27357 Burke, VA 22015
WSW-18 8606 US Highway 158 7984 Lester Dr.Unknown Unknown Unknown 700 Up-gradient NM NM
WSW-19 Stokesdale, NC 27357 Stokesdale, NC 27357 Unknown Unknown Unknown 870 Up-gradient NM NM
8512 US Highway 158 PO Box 2474
Stokesdale, NC 27357 Kernersville, NC 27285
WSW-21 8305 Stokesdale St. 7678 Southern Oak Rd. Potable Supply Unknown Unknown 385 Cross-gradient 1709194.48 908643.00
WSW-34 Stokesdale,NC 27357 Springfield, VA 22153 Potable Supply Unknown Unknown 445 Cross-gradient NM NM
8303 Stokesdale St. 111 S. Market St.
Stokesdale,NC 27357 Madison, NC 27025
8413 Shilling St. 8413 Shilling St.
Stokesdale, NC 27357 Stokesdale, NC 27357
8200 Stokesdale St. 7503 Henson Forest Dr
Stokesdale, NC 27357 Summerfield, NC 27358
8312 US Highway 158 PO Box 690
Stokesdale, NC 27357 Stokesdale, NC 27357
8509 Vaughn St. 8509 Vaughn St.
Stokesdale, NC 27357 Stokesdale, NC 27357
8511 Vaughn St. 8511 Vaughn St.
Stokesdale, NC 27357 Stokesdale, NC 27357
8508 US Highway 158 8508 US Highway 158
Stokesdale, NC 27357 Stokesdale, NC 27357
8301‐8303 Newberry St. 8406 Shilling St.
Stokesdale, NC 27357 Stokesdale, NC 27357
7900977602 8121 Stokesdale St. 8191 Oak Creek Dr.
7900975634 Stokesdale,NC 27357 Stokesdale, NC 27357
8401 Stokesdale St. 8482 Linville Rd.
Stokesdale, NC 27357 Oak Ridge, NC 27310
8506 Vaughn St. 8506 Vaughn St.
Stokesdale, NC 27357 Stokesdale, NC 27357
8301 Stokesdale St. 8301 Stokesdale St.
Stokesdale, NC 27357 Stokesdale, NC 27357
8307 Stokesdale ST. 8501 Winding Hill Dr.
Stokesdale, NC 27357 Stokesdale, NC 27357
8401 US Highway 158 PO Box 146
Stokesdale, NC 27357 Stokesdale, NC 27357
8214 Glory Rd. 5739 Bunch Road
Stokesdale,NC 27357 Oakridge, NC 27310
8403 Stokesdale St. 8482 Linville Rd.
Stokesdale, NC 27357 Oak Ridge, NC 27310
8302 Strand Dr. 8302 Strand Dr.
Stokesdale, NC 27357 Stokesdale, NC 27357
8411 Shilling St. 8411 Shilling St.
Stokesdale, NC 27357 Stokesdale, NC 27357
8306 Newberry St. 8306 Newberry St.
Stokesdale, NC 27357 Stokesdale, NC 27357
1)
2)
3)
Well Distance
from Source
Area
(feet)
Property OwnerGuilford
County PIN Well Use
Incident # 9351
Well
Screen
Interval
(feet)
Well Depth
(feet)
TABLE B-5
PUBLIC & PRIVATE WATER SUPPLY WELL INFORMATION
VIRGINIA'S GAS STATION
8432 & 8434 Highway 158
Stokesdale, Guilford County, NC
WSW-5
7900988975 Irrigation, Pool Use Unknown
Location
Relative to
Groundwater
Flow
Notes:
Well Coordinates
(NC State Plane NAD 83 Feet)Property Owner AddressProperty AddressWell ID
WSW-6
WSW-7
WSW-9
WSW-10
WSW-11
WSW-1
WSW-2
WSW-3
WSW-4
WSW-12
WSW-13
WSW-14
WSW-15
WSW-16
WSW-17
WSW-20
WSW-22
WSW-23
WSW-24
WSW-25
WSW-26
WSW-27
WSW-28
WSW-29
WSW-30
WSW-31
WSW-32
WSW-39
WSW-41
WSW-42 7910092349
WSW-33
WSW-35
WSW-36
WSW-37
WSW-38
7900998034
7900888818
NM
Inactive Unknown Unknown 1050 Up-gradient NM
NM NM
NM
7910084760 Unknown Unknown Unknown 950 Up-gradient NM
Irrigation, Pool Use Unknown Unknown 620 Up-gradient
Down-gradient
Unknown-Public Water In
Use Unknown Unknown 830 NM
7900985106 Inactive, Public Water In
Use Unknown Unknown 490
Unknown 590 Up-gradient NM
Up-gradient NM
Up-gradient
7900982414 240
NM
NM
NM NM
7900980555 Inactive Unknown
Unknown-Public Water In
Use Unknown Unknown 690 Up-gradient
NM
Potable Supply Unknown Unknown 830
NM NMDorrice Properties, LLC
Inactive Unknown Unknown 925 Up-gradient
Pamela & William Lemmons, Jr. 
& Stevra Gonzalez NM NM
Cross-gradient
7900984718 Irrigation Only Unknown Unknown 365
Barbra C. Marshall
Stokesdale Service Center Inc. & 
Billy D. Fulp
Cross-gradient NM
Up-gradient NM NM
7900887344 Potable Supply Unknown Unknown 860
Down-gradient NM NM
NM NM
7900888434 Potable Supply Unknown Unknown 725
Inactive
Not Located 3/23/2023 Unknown Unknown 688
NM
7910072920 Inactive Unknown Unknown 900
Down-gradient NM NM
7910084517 Unknown Unknown Unknown 900 Cross-gradient
7900979933
NM
7900983902 Irrigation, Pool Use Unknown Unknown 500 NM NM
John Melvin Cox, Jr.
Unknown Unknown 675 Up-gradient
NM
NM
Unknown Unknown 345
NM
Up-gradient
7900989516 Potable Supply Unknown Unknown 340John W. Flynt
7900994067 Inactive
Up-gradient NM
Cross-gradient NM NM
7910083808 Inactive Unknown Unknown 830
Up-gradient NM NM
NM NM
7910084893 Abandoned Unknown Unknown 980
Reportedly Abandoned Unknown Unknown 665
NM
7910085913 Unknown Unknown Unknown 990
Cross-gradient NM NM
7910081609 Reportedly Abandoned Unknown Unknown 545 Up-gradient
7910081599
NM NM
7900989855 Inactive Unknown Unknown 550 Up-gradient NM
Inactive Unknown Unknown 485
NM
7900996292
Cross-gradient NM NM7910080457
7900986508 Abandoned Unknown Unknown 20 At Source NM NM
7900986535 Abandoned Unknown Unknown 50 At Source NM NM
7900986855 Potable Supply Unknown Unknown 365 Up-gradient NM NM
Unknown 530 Up-gradient NM NM
7900985626 Reportedly Abandoned Unknown Unknown 195 Up-gradient NM NM
7900988603 Reportedly Abandoned Unknown Unknown 240 Up-gradient NM NM
7910082738 Norman Westmorland, LLC. Abandoned Unknown Unknown 730 Up-gradient 1710266.39 908747.17
Gary D. & Linda S. Albert
 South Rich, LLC
Keneth P. Simpson, Robin S. 
Howerton, Robert Simpson & 
Janice Simpson Living Trust
Gary D. & Linda S. Albert
Mary Jane King & Judy L. 
Pegram
Mary Jane King & Judy L. 
Pegram
South Rich, LLC
Brook Funeral Home, Inc.
Mark & Laurie Howard
Stephen W. & Toss W. Gauldin
Kimberly D & Joey L Martin
Mahalia L. McGee
Archie L. & Lisa W. McGee
Pamela & William Lemmons, Jr. 
& Stevra Gonzalez
Susan Shelton Cummings
Norman Westmoreland, LLC
ILF Holdings, LLC
Aisha Realty LLC
Susan Shelton Cummings
Walter R. Clark & Haley M. 
Mcclung
Pamela & William Lemmons, Jr. 
& Allison Lemons
Jennifer Giles
Heather M. & Daniel G. Hill
Kelli M. & Larry Jr. Ferguson
Robert Lichtenstein
Stokesdale Fire District, Inc.
Norma D. Jones
NM
Calvin W. & Georgeanne G. 
Wyrick
Keneth P. Simpson, Robin S. 
Howerton & the Robert & 
Janice Simpson Living Trust
Walter J. & Shirley H. Hodgson
7900983052 Gregory Beshears
Billy Fulp
7910093022
April N. & Bradley J. Meehan
7900888798
7900887633
Down-gradient 1709656.60
NM
Unknown Unknown
Inactive Unknown Unknown
Inactive
Cross-gradient
908541.517900981447
Supply well identification, and use(s) from Crawford Environmental Services, Inc. Groundwater Monitoring Event Letter Report: August 2012.
Property ownership from Guilford County GIS, current as of June 9, 2021.
550 Down-gradient 1709372.16
Public Water In Use
Well Abandoned Unknown Unknown 890
NM Denotes "Not Measured"
7900990251
7900981640
WR performed a receptor survey update in association with the subject property in September 2021.
907651.00
908018.90
Unknown Cross-gradient 1709218.38
Page 1 of 1
Easting NorthingMW-1 8/1/1995 2 26 Unknown Unknown 100.53 3/28/2023 12.75 --- 87.78 1709594.06 908517.75RW-1 5/15/1997 2 20 5 5-20 100.84 3/28/2023 12.85 --- 87.99 1709578.46 908504.46MW-3 1/21/1997 2 19.5 4.5 4.5-19.5 100.62 3/28/2023 12.55 --- 88.07 1709559.52 908529.75MW-4 1/21/1997 2 19.5 4.5 4.5-19.5 100.57 3/28/2023 12.34 --- 88.23 1709575.43 908531.59MW-5 1/21/1997 2 19.5 4.5 4.5-19.5 100.26 3/28/2023 6.95 --- 93.31 1709585.51 908562.95MW-6 4/14/1997 2 23 8 8-23 101.78 3/28/2023 15.05 --- 86.73 1709532.11 908432.11MW-7 4/14/1997 2 24 9 9-24 103.02 3/28/2023 17.00 --- 86.02 1709570.77 908386.30MW-8 4/14/1997 2 24 9 9-24 102.00 3/28/2023 16.90 --- 85.10 1709468.58 908304.05MW-10 5/20/1997 2 26.5 11.5 11.5-26.5 103.30 3/28/2023 19.50 --- 83.80 1709666.79 908247.321)2) Monitoring well MW-2 was removed and replaced with RW-1.3)Well Casing Diameter(inches)Screened Interval (feet)TABLE B-7MONITORING & REMEDIATION WELL CONSTRUCTION INFORMATIONVIRGINIA'S GAS STATIONIncident # 93518432 & 8434 Highway 158Well Casing Depth (feet)Stokesdale, Guilford County, NCWell ID Date InstalledWell Coordinates(NC State Plane NAD 83 Feet)Information for MW-9 not included as the well was abandoned.Top-of-Casing Elevation (feet)Date Water Level MeasuredDepth-to-Water from Top-of-Casing(feet)Free Product Thickness(feet)Monitoring well Top of Casing (TOC) Elevations relative to site benchmark established at TOC for MW-1 with an assumed elevation of 100.53 feet, based on survey performed 08/11/2016.Notes: GroundwaterElevation (feet)Total Depth (feet)Page 1 of 1
Well ID
Screened 
Interval       (feet)
Top‐of‐Casing 
Elevation          
(feet)
Date Water Level Measured Depth‐to‐LNAPL(feet)
Depth‐to‐Water
Uncorrected
(feet)
LNAPL Thickness(feet)
Depth‐to‐Water
Corrected
(feet)
Groundwater SurfaceElevation            (feet)
6/18/2003 10.05 11.99 1.94 10.33 90.20
7/22/2009 14.41 14.89 0.48 14.48 86.05
8/11/2011 15.70 15.72 0.02 13.11 84.83
6/18/2014 ‐‐‐13.60 ‐‐‐13.60 86.93
4/22/2015 ‐‐‐13.35 ‐‐‐13.35 87.18
5/12/2016 ‐‐‐11.28 ‐‐‐11.28 89.25
9/16/2019 ‐‐‐14.58 ‐‐‐14.58 85.95
8/30/2021 ‐‐‐14.35 ‐‐‐14.35 86.18
3/28/2023 ‐‐‐12.75 ‐‐‐12.75 87.78
6/18/2003 11.15 11.43 0.28 11.19 89.65
9/9/2004 14.66 14.78 0.12 14.68 86.16
11/15/2005 16.54 16.74 0.20 16.57 84.27
4/10/2006 15.35 15.56 0.21 15.38 85.46
4/28/2006 15.55 15.59 0.04 15.56 85.28
6/18/2014 ‐‐‐13.86 ‐‐‐13.86 86.98
4/22/2015 ‐‐‐14.32 ‐‐‐14.32 86.52
5/12/2016 ‐‐‐12.21 ‐‐‐12.21 88.63
6/22/2017 ‐‐‐12.50 ‐‐‐12.50 88.34
1/30/2018 ‐‐‐17.84 ‐‐‐17.84 83.00
9/16/2019 ‐‐‐14.49 ‐‐‐14.49 86.35
8/30/2021 ‐‐‐14.28 ‐‐‐14.28 86.56
3/28/2023 ‐‐‐12.85 ‐‐‐12.85 87.99
6/18/2003 9.65 11.82 2.17 9.96 90.66
9/9/2004 15.42 16.69 1.27 15.60 85.02
11/15/2005 15.58 16.54 0.96 15.72 84.90
4/10/2006 14.32 15.48 1.16 14.48 86.14
4/28/2006 ‐‐‐14.75 ‐‐‐14.75 85.87
6/18/2014 ‐‐‐13.04 ‐‐‐13.04 87.58
4/22/2015 ‐‐‐13.58 ‐‐‐13.58 87.04
4/30/2016 ‐‐‐11.64 ‐‐‐11.64 88.98
6/22/2017 ‐‐‐12.24 ‐‐‐12.24 88.38
1/30/2018 ‐‐‐17.97 ‐‐‐17.97 82.65
9/16/2019 ‐‐‐14.30 ‐‐‐14.30 86.32
8/30/2021 ‐‐‐14.03 ‐‐‐14.03 86.59
3/28/2023 ‐‐‐12.55 ‐‐‐12.55 88.07
6/18/2003 9.48 11.05 1.57 9.70 90.87
9/9/2004 14.67 15.66 0.99 14.81 85.76
11/15/2005 15.67 16.62 0.95 15.80 84.77
4/10/2006 14.44 15.52 1.08 14.59 85.98
4/28/2006 14.70 14.92 0.22 14.73 85.84
6/18/2014 13.06 13.11 0.05 13.11 87.50
8/6/2014 15.91 15.98 0.07 15.92 84.65
4/22/2015 ‐‐‐13.00 ‐‐‐13.00 87.57
4/30/2016 ‐‐‐11.81 ‐‐‐11.81 88.76
6/22/2017 ‐‐‐11.74 ‐‐‐11.74 88.83
1/30/2018 ‐‐‐17.51 ‐‐‐17.51 83.06
9/16/2019 ‐‐‐14.18 ‐‐‐14.18 86.39
8/30/2021 ‐‐‐13.86 ‐‐‐13.86 86.71
3/28/2023 ‐‐‐12.34 ‐‐‐12.34 88.23
7/22/2009 ‐‐‐13.80 ‐‐‐13.80 86.46
1/18/2011 ‐‐‐14.19 ‐‐‐14.19 86.07
8/11/2011
8/28/2012 ‐‐‐16.34 ‐‐‐16.34 83.92
6/18/2014 ‐‐‐12.78 ‐‐‐12.78 87.48
4/22/2015 ‐‐‐9.81 ‐‐‐9.81 90.45
4/30/2016 ‐‐‐9.46 ‐‐‐9.46 90.80
9/16/2019 ‐‐‐13.50 ‐‐‐13.50 86.76
8/30/2021 ‐‐‐13.11 ‐‐‐13.11 87.15
3/28/2023 ‐‐‐6.95 ‐‐‐6.95 93.31
7/22/2009 ‐‐‐16.86 ‐‐‐16.86 84.92
1/18/2011 ‐‐‐17.24 ‐‐‐17.24 84.54
8/11/2011
8/28/2012 ‐‐‐19.39 ‐‐‐19.39 82.39
6/18/2014 ‐‐‐15.96 ‐‐‐15.96 85.82
4/22/2015 ‐‐‐16.85 ‐‐‐16.85 84.93
9/16/2019 ‐‐‐16.61 ‐‐‐16.61 85.17
8/30/2021 ‐‐‐16.38 ‐‐‐16.38 85.40
3/28/2023 ‐‐‐15.05 ‐‐‐15.05 86.73
7/22/2009 ‐‐‐18.51 ‐‐‐18.51 84.51
1/18/2011 ‐‐‐18.99 ‐‐‐18.99 84.03
8/11/2011
8/28/2012 ‐‐‐20.92 ‐‐‐20.92 82.10
6/18/2014 ‐‐‐17.72 ‐‐‐17.72 85.30
4/22/2015 ‐‐‐18.68 ‐‐‐18.68 84.34
6/22/2017 ‐‐‐17.45 ‐‐‐17.45 85.57
1/30/2018 ‐‐‐21.86 ‐‐‐21.86 81.16
9/16/2019 ‐‐‐18.17 ‐‐‐18.17 84.85
8/30/2021 ‐‐‐17.96 ‐‐‐17.96 85.06
3/28/2023 ‐‐‐17.00 ‐‐‐17.00 86.02
1/3/1900 ‐‐‐18.55 ‐‐‐18.55 83.45
1/18/2011 ‐‐‐18.69 ‐‐‐18.69 83.31
8/11/2011
8/28/2012 ‐‐‐20.06 ‐‐‐20.06 81.94
6/18/2014 ‐‐‐17.61 ‐‐‐17.61 84.39
4/22/2015 ‐‐‐18.51 ‐‐‐18.51 83.49
9/16/2019 ‐‐‐18.26 ‐‐‐18.26 83.74
8/30/2021 ‐‐‐18.04 ‐‐‐18.04 83.96
3/28/2023 ‐‐‐16.90 ‐‐‐16.90 85.10
MW‐9 ‐‐‐ ‐‐‐ ‐‐‐
7/22/2009 ‐‐‐19.77 ‐‐‐19.77 83.53
1/18/2011
8/11/2011
8/28/2012 ‐‐‐21.73 ‐‐‐21.73 81.57
6/18/2014
4/22/2015 ‐‐‐20.52 ‐‐‐20.52 82.78
9/16/2019 ‐‐‐19.18 ‐‐‐19.18 84.12
8/30/2021 ‐‐‐18.78 ‐‐‐18.78 84.52
3/28/2023 ‐‐‐19.50 ‐‐‐19.50 83.80
1)
MW‐79‐24 103.02
RW‐1 
(MW‐2 
was 
replaced 
with RW‐1 in 1997)
5‐20 100.84
MW‐3 4.5‐19.5 100.62
TABLE B‐9CURRENT & HISTORICAL GROUNDWATER ELEVATIONS & LNAPL THICKNESS
VIRGINIA'S GAS STATION
8432 & 8434 Highway 158Stokesdale, Guilford County, NC
MW‐68‐23 101.78
100.26
Incident # 9351
Monitoring well Top of Casing (TOC) Elevations relative to site benchmark established  at TOC for MW‐1 with an assumed elevation of 100.53 feet, based on 
survey performed 08/11/2016.
Notes: 
MW‐10 11.5‐26.5 103.30
MW‐89‐24 102.00
Not Measured
Not Measured
Not Measured‐Well  Abandoned
Not Measured
Not Measured
Not Measured
Not Measured
Not Measured
100.53UnknownMW‐1
MW‐5 4.5‐19.5
MW‐4 4.5‐19.5 100.57
Page 1 of 1

Appendix A
Field Notes and Photographic Record

Virginia’s Gas Station (Incident #9351) Groundwater Monitoring Report WR Project # 23-0307-CB May 2023
WithersRavenel
Our People. Your Success.
Photographic Record
Project Name: Virginia’s Gas Station Project No. 23-0307-CB
Frame No. 1
Description: View of site, facing northeast. MW-4 in foreground.
Frame No. 2
Description: View of southeast adjoining commercial building.
MW-3
RW-1
MW-1
Photographic Record
Project Name: Virginia’s Gas Station Project No. 23-0307-CB
Frame No. 3
Description: View of MW-5 along Newberry Road, facing northwest.

Frame No. 4
Description: View of MW-6, facing southeast.

Photographic Record
Project Name: Virginia’s Gas Station Project No. 23-0307-CB
Frame No. 5
Description: View of MW-7 facing southeast.

Frame No. 6
Description: View of MW-8 facing southeast.

Photographic Record
Project Name: Virginia’s Gas Station Project No. 23-0307-CB
Frame No. 7
Description: View of MW-10 at fire station.

Frame No. 8
Description: View of sample point for WSW-16.

Photographic Record
Project Name: Virginia’s Gas Station Project No. 23-0307-CB
Frame No. 9
Description: View of dilapidated structure located on property where WSW-24 was suspected to be located.
WSW-24 could not be located.

Appendix B
Laboratory Report and Chain of Custody

Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the
analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.

4/17/2023
Withers & Ravenel David Vail
115 Mackenan Dr. BUILDING 117 Cary, NC, 27511
Ref: Analytical Testing
Lab Report Number: 23-094-0011 Client Project Description: Virgina's Gas Station
23-0307-6B
Dear David Vail:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 4/4/2023 for the analyses presented in the following report.
The above referenced project has been analyzed per your instructions. The analyses were performed in
accordance with the applicable analytical method.
The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all
parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of
sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance.
The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-
received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information.
Sincerely,
Angela D Overcash Senior Project Manager
Page 1 of 80
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State Program Lab ID Expiration Date
07/31/202337735State ProgramNorth Carolina
12/31/2023402State ProgramNorth Carolina
07/31/202399012State ProgramSouth Carolina
12/31/202299012State ProgramSouth Carolina
Page 1 of 1 00016/23-094-0011
Page 2 of 80
Report Number:
Sample Summary Table
Client Project Description:
23-094-0011
Virgina's Gas Station
23-0307-6B
Lab No Client Sample ID Matrix Date Collected Date Received
03/28/2023 10:45Aqueous 92833 MW-1 04/04/2023 12:06
03/28/2023 11:50Aqueous 92834 RW-1 04/04/2023 12:06
03/28/2023 11:00Aqueous 92835 MW-3 04/04/2023 12:06
03/28/2023 11:20Aqueous 92836 MW-4 04/04/2023 12:06
03/28/2023 11:35Aqueous 92837 MW-5 04/04/2023 12:06
03/28/2023 13:35Aqueous 92838 MW-6 04/04/2023 12:06
03/28/2023 13:02Aqueous 92839 MW-7 04/04/2023 12:06
03/28/2023 13:00Aqueous 92840 MW-8 04/04/2023 12:06
03/28/2023 12:45Aqueous 92841 MW-10 04/04/2023 12:06
03/28/2023Aqueous 92842 TB 04/04/2023 12:06
03/28/2023 10:35Aqueous 92843 FB 04/04/2023 12:06
03/28/2023 15:10Aqueous 92844 WSW-16 04/04/2023 12:06
Page 3 of 80
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-094-0011
Report Limit
Project:Virgina's Gas Station
V 92833MW-1
1830 04/11/2023 05:476200BEthylbenzeneµg/L 50.0
70.8 04/11/2023 05:476200BIsopropylbenzeneµg/L 50.0
661 04/11/2023 05:476200BNaphthaleneµg/L 100
152 04/11/2023 05:476200Bn-Propylbenzene µg/L 50.0
63.9 04/11/2023 05:476200BStyreneµg/L 50.0
2490 04/11/2023 05:476200BTolueneµg/L 50.0
1880 04/11/2023 05:476200B1,2,4-Trimethylbenzene µg/L 50.0
665 04/11/2023 05:476200B1,3,5-Trimethylbenzene µg/L 50.0
3720 04/11/2023 05:476200Bo-Xylene µg/L 50.0
8580 04/11/2023 05:476200Bm,p-Xylene µg/L 100
12300 04/11/2023 05:476200BXylene (Total)µg/L 50.0
V 92834RW-1
25000 04/12/2023 09:316200BBenzeneµg/L 500
10.1 04/11/2023 00:306200Bn-Butylbenzene µg/L 5.00
8.77 04/11/2023 00:306200Bsec-Butyl benzene µg/L 5.00
999 04/11/2023 00:306200BDi-Isopropyl Ether (DIPE)µg/L 5.00
305 04/11/2023 00:306200B1,2-Dibromoethane µg/L 5.00
121 04/11/2023 00:306200B1,2-Dichloroethane µg/L 5.00
1350 04/12/2023 09:316200BEthylbenzeneµg/L 500
40.8 04/11/2023 00:306200BIsopropylbenzeneµg/L 5.00
9.40 04/11/2023 00:306200B4-Isopropyl toluene µg/L 5.00
2130 04/12/2023 09:316200BMethyl tert-butyl ether (MTBE)µg/L 1000
592 04/11/2023 00:306200BNaphthaleneµg/L 10.0
86.0 04/11/2023 00:306200Bn-Propylbenzene µg/L 5.00
62.2 04/11/2023 00:306200BStyreneµg/L 5.00
25300 04/12/2023 09:316200BTolueneµg/L 500
2460 04/12/2023 09:316200B1,2,4-Trimethylbenzene µg/L 500
872 04/11/2023 00:306200B1,3,5-Trimethylbenzene µg/L 5.00
4430 04/12/2023 09:316200Bo-Xylene µg/L 500
8520 04/12/2023 09:316200Bm,p-Xylene µg/L 1000
13000 04/12/2023 09:316200BXylene (Total)µg/L 500
V 92835MW-3
19100 04/12/2023 09:556200BBenzeneµg/L 500
793 04/11/2023 06:126200BDi-Isopropyl Ether (DIPE)µg/L 50.0
348 04/11/2023 06:126200B1,2-Dibromoethane µg/L 50.0
570 04/11/2023 06:126200B1,2-Dichloroethane µg/L 50.0
Page 4 of 80
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-094-0011
Report Limit
Project:Virgina's Gas Station
V 92835MW-3
1850 04/11/2023 06:126200BEthylbenzeneµg/L 50.0
72.7 04/11/2023 06:126200BIsopropylbenzeneµg/L 50.0
2130 04/11/2023 06:126200BMethyl tert-butyl ether (MTBE)µg/L 100
850 04/11/2023 06:126200BNaphthaleneµg/L 100
171 04/11/2023 06:126200Bn-Propylbenzene µg/L 50.0
74.9 04/11/2023 06:126200BStyreneµg/L 50.0
28600 04/12/2023 09:556200BTolueneµg/L 500
2350 04/11/2023 06:126200B1,2,4-Trimethylbenzene µg/L 50.0
619 04/11/2023 06:126200B1,3,5-Trimethylbenzene µg/L 50.0
4370 04/11/2023 06:126200Bo-Xylene µg/L 50.0
9140 04/11/2023 06:126200Bm,p-Xylene µg/L 100
13500 04/11/2023 06:126200BXylene (Total)µg/L 50.0
V 92836MW-4
1230 04/11/2023 05:416200BBenzeneµg/L 50.0
81.5 04/11/2023 05:416200Bn-Butylbenzene µg/L 50.0
871 04/11/2023 05:416200BEthylbenzeneµg/L 50.0
113 04/11/2023 05:416200B2-Hexanone µg/L 100
58.0 04/11/2023 05:416200B4-Isopropyl toluene µg/L 50.0
719 04/11/2023 05:416200BNaphthaleneµg/L 100
91.4 04/11/2023 05:416200Bn-Propylbenzene µg/L 50.0
9190 04/11/2023 05:416200BTolueneµg/L 50.0
2990 04/11/2023 05:416200B1,2,4-Trimethylbenzene µg/L 50.0
911 04/11/2023 05:416200B1,3,5-Trimethylbenzene µg/L 50.0
3790 04/11/2023 05:416200Bo-Xylene µg/L 50.0
8070 04/11/2023 05:416200Bm,p-Xylene µg/L 100
11900 04/11/2023 05:416200BXylene (Total)µg/L 50.0
V 92838MW-6
37.1 04/11/2023 01:346200BBenzeneµg/L 0.500
8.37 04/11/2023 01:346200Bn-Butylbenzene µg/L 0.500
7.31 04/11/2023 01:346200Bsec-Butyl benzene µg/L 0.500
2.93 04/11/2023 01:346200Btert-Butyl benzene µg/L 2.00
1.04 04/11/2023 01:346200BDi-Isopropyl Ether (DIPE)µg/L 0.500
H88604/14/2023 01:506200BEthylbenzeneµg/L 50.0
39.7 04/11/2023 01:346200B2-Hexanone µg/L 1.00
59.2 04/11/2023 01:346200BIsopropylbenzeneµg/L 0.500
6.79 04/11/2023 01:346200B4-Isopropyl toluene µg/L 0.500
Page 5 of 80
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-094-0011
Report Limit
Project:Virgina's Gas Station
V 92838MW-6
1.84 04/11/2023 01:346200BMethyl tert-butyl ether (MTBE)µg/L 1.00
18.3 04/11/2023 01:346200B4-Methyl-2-Pentanone µg/L 1.00
H31904/14/2023 01:506200BNaphthaleneµg/L 100
H14604/14/2023 01:506200Bn-Propylbenzene µg/L 50.0
40.0 04/11/2023 01:346200BStyreneµg/L 0.500
H37604/14/2023 01:506200BTolueneµg/L 50.0
H139004/14/2023 01:506200B1,2,4-Trimethylbenzene µg/L 50.0
H39304/14/2023 01:506200B1,3,5-Trimethylbenzene µg/L 50.0
H130004/14/2023 01:506200Bo-Xylene µg/L 50.0
H401004/14/2023 01:506200Bm,p-Xylene µg/L 100
H531004/14/2023 01:506200BXylene (Total)µg/L 50.0
V 92839MW-7
H0.520 04/13/2023 04:016200BBenzeneµg/L 0.500
V 92841MW-10
1.67 04/11/2023 02:486200BTolueneµg/L 0.500
Page 6 of 80

Client: Withers & Ravenel CASE NARRATIVE
Project: Virgina's Gas Station Lab Report Number: 23-094-0011
Date: 4/14/2023
Volatile Organic Compounds - GC/MS Method 6200B Analyte: 1,2,3-Trichlorobenzene QC Batch No: V32021/V31860
Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits.
Sample 92838 (MW-6) QC Batch No: V32021/V31864
Original sample was run within hold time. Dilution for sample ran out of hold time. Results of dilution verify original data.
Sample 92838 (MW-6)
Analyte: Toluene-d8 QC Batch No: V31865/V31864
Surrogate recovery(s) was flagged as outside QC limits due to high levels of target and/or non-target analytes. Batch QC samples (method blank and laboratory control samples) all showed surrogates within QC limits.
Sample 92839 (MW-7)
QC Batch No: V31970/V31969 Sample was run after a very hot sample originally within hold time, but exibited carryover. The sample was re-run
outside of hold time and saw the carryover was in fact due to the previous sample. Second run reported. Sample 92840 (MW-8) QC Batch No: V31970/V31969
Sample was run after a very hot sample originally within hold time, but exibited carryover. The sample was re-run outside of hold time and saw the carryover was in fact due to the previous sample. Second run reported.

Page 7 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-1
92833 Matrix:
3/28/2023 10:45
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1000 µg/L 1000Acetone 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Benzene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Bromobenzene 100 04/11/23 05:47 6200BMSA
<100 µg/L 100Bromochloromethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Bromodichloromethane 100 04/11/23 05:47 6200BMSA
<500 µg/L 500Bromoform 100 04/11/23 05:47 6200BMSA
<100 µg/L 100Bromomethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0n-Butylbenzene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0sec-Butyl benzene 100 04/11/23 05:47 6200BMSA
<200 µg/L 200tert-Butyl benzene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Carbon Tetrachloride 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Chlorobenzene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Chlorodibromomethane 100 04/11/23 05:47 6200BMSA
<100 µg/L 100Chloroethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Chloroform 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Chloromethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.02-Chlorotoluene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.04-Chlorotoluene 100 04/11/23 05:47 6200BMSA
<200 µg/L 2001,2-Dibromo-3-Chloropropane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,2-Dibromoethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Dibromomethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,2-Dichlorobenzene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,3-Dichlorobenzene 100 04/11/23 05:47 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 8 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-1
92833 Matrix:
3/28/2023 10:45
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<50.0 µg/L 50.01,4-Dichlorobenzene 100 04/11/23 05:47 6200BMSA
<500 µg/L 500Dichlorodifluoromethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,1-Dichloroethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,2-Dichloroethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,1-Dichloroethene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0cis-1,2-Dichloroethene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0trans-1,2-Dichloroethene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,2-Dichloropropane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,3-Dichloropropane 100 04/11/23 05:47 6200BMSA
<200 µg/L 2002,2-Dichloropropane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,1-Dichloropropene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0cis-1,3-Dichloropropene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0trans-1,3-Dichloropropene 100 04/11/23 05:47 6200BMSA
<20000 µg/L 20000Ethanol 100 04/11/23 05:47 6200BMSA
1830 µg/L 50.0Ethylbenzene 100 04/11/23 05:47 6200BMSA
<300 µg/L 300Hexachlorobutadiene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Di-Isopropyl Ether (DIPE)100 04/11/23 05:47 6200BMSA
70.8 µg/L 50.0Isopropylbenzene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.04-Isopropyl toluene 100 04/11/23 05:47 6200BMSA
<100 µg/L 1002-Hexanone 100 04/11/23 05:47 6200BMSA
<500 µg/L 500Methyl Ethyl Ketone (MEK)100 04/11/23 05:47 6200BMSA
<200 µg/L 200Methylene Chloride 100 04/11/23 05:47 6200BMSA
<100 µg/L 100Methyl tert-butyl ether (MTBE)100 04/11/23 05:47 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 9 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-1
92833 Matrix:
3/28/2023 10:45
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<100 µg/L 1004-Methyl-2-Pentanone 100 04/11/23 05:47 6200BMSA
661 µg/L 100Naphthalene 100 04/11/23 05:47 6200BMSA
152 µg/L 50.0n-Propylbenzene 100 04/11/23 05:47 6200BMSA
63.9 µg/L 50.0Styrene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,1,1,2-Tetrachloroethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,1,2,2-Tetrachloroethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Tetrachloroethene 100 04/11/23 05:47 6200BMSA
2490 µg/L 50.0Toluene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,2,3-Trichlorobenzene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,2,4-Trichlorobenzene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,1,1-Trichloroethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,1,2-Trichloroethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Trichloroethene 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Trichlorofluoromethane 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.01,2,3-Trichloropropane 100 04/11/23 05:47 6200BMSA
1880 µg/L 50.01,2,4-Trimethylbenzene 100 04/11/23 05:47 6200BMSA
665 µg/L 50.01,3,5-Trimethylbenzene 100 04/11/23 05:47 6200BMSA
<500 µg/L 500Vinyl Acetate 100 04/11/23 05:47 6200BMSA
<50.0 µg/L 50.0Vinyl Chloride 100 04/11/23 05:47 6200BMSA
8580 µg/L 100m,p-Xylene 100 04/11/23 05:47 6200BMSA
3720 µg/L 50.0o-Xylene 100 04/11/23 05:47 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 10 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-1
92833 Matrix:
3/28/2023 10:45
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
12300 µg/L 50.0Xylene (Total)100 04/11/23 05:47 6200B
Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%04/11/23 05:47100 MSA V31866
Surrogate: Dibromofluoromethane 102 Limits: 70-130%04/11/23 05:47100 MSA V31866
Surrogate: 1,2-Dichloroethane - d4 105 Limits: 70-130%04/11/23 05:47100 MSA V31866
Surrogate: Toluene-d8 99.2 Limits: 70-130%04/11/23 05:47100 MSA V31866
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 11 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:RW-1
92834 Matrix:
3/28/2023 11:50
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<100 µg/L 100Acetone 10 04/11/23 00:30 6200BMSA
25000 µg/L 500Benzene 1000 04/12/23 09:31 6200BTBL
<5.00 µg/L 5.00Bromobenzene 10 04/11/23 00:30 6200BMSA
<10.0 µg/L 10.0Bromochloromethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00Bromodichloromethane 10 04/11/23 00:30 6200BMSA
<50.0 µg/L 50.0Bromoform 10 04/11/23 00:30 6200BMSA
<10.0 µg/L 10.0Bromomethane 10 04/11/23 00:30 6200BMSA
10.1 µg/L 5.00n-Butylbenzene 10 04/11/23 00:30 6200BMSA
8.77 µg/L 5.00sec-Butyl benzene 10 04/11/23 00:30 6200BMSA
<20.0 µg/L 20.0tert-Butyl benzene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00Carbon Tetrachloride 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00Chlorobenzene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00Chlorodibromomethane 10 04/11/23 00:30 6200BMSA
<10.0 µg/L 10.0Chloroethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00Chloroform 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00Chloromethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.002-Chlorotoluene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.004-Chlorotoluene 10 04/11/23 00:30 6200BMSA
<20.0 µg/L 20.01,2-Dibromo-3-Chloropropane 10 04/11/23 00:30 6200BMSA
305 µg/L 5.001,2-Dibromoethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00Dibromomethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,2-Dichlorobenzene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,3-Dichlorobenzene 10 04/11/23 00:30 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 12 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:RW-1
92834 Matrix:
3/28/2023 11:50
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<5.00 µg/L 5.001,4-Dichlorobenzene 10 04/11/23 00:30 6200BMSA
<50.0 µg/L 50.0Dichlorodifluoromethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,1-Dichloroethane 10 04/11/23 00:30 6200BMSA
121 µg/L 5.001,2-Dichloroethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,1-Dichloroethene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00cis-1,2-Dichloroethene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00trans-1,2-Dichloroethene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,2-Dichloropropane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,3-Dichloropropane 10 04/11/23 00:30 6200BMSA
<20.0 µg/L 20.02,2-Dichloropropane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,1-Dichloropropene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00cis-1,3-Dichloropropene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00trans-1,3-Dichloropropene 10 04/11/23 00:30 6200BMSA
<2000 µg/L 2000Ethanol 10 04/11/23 00:30 6200BMSA
1350 µg/L 500Ethylbenzene 1000 04/12/23 09:31 6200BTBL
<30.0 µg/L 30.0Hexachlorobutadiene 10 04/11/23 00:30 6200BMSA
999 µg/L 5.00Di-Isopropyl Ether (DIPE)10 04/11/23 00:30 6200BMSA
40.8 µg/L 5.00Isopropylbenzene 10 04/11/23 00:30 6200BMSA
9.40 µg/L 5.004-Isopropyl toluene 10 04/11/23 00:30 6200BMSA
<10.0 µg/L 10.02-Hexanone 10 04/11/23 00:30 6200BMSA
<50.0 µg/L 50.0Methyl Ethyl Ketone (MEK)10 04/11/23 00:30 6200BMSA
<20.0 µg/L 20.0Methylene Chloride 10 04/11/23 00:30 6200BMSA
2130 µg/L 1000Methyl tert-butyl ether (MTBE)1000 04/12/23 09:31 6200BTBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 13 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:RW-1
92834 Matrix:
3/28/2023 11:50
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 µg/L 10.04-Methyl-2-Pentanone 10 04/11/23 00:30 6200BMSA
592 µg/L 10.0Naphthalene 10 04/11/23 00:30 6200BMSA
86.0 µg/L 5.00n-Propylbenzene 10 04/11/23 00:30 6200BMSA
62.2 µg/L 5.00Styrene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,1,1,2-Tetrachloroethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,1,2,2-Tetrachloroethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00Tetrachloroethene 10 04/11/23 00:30 6200BMSA
25300 µg/L 500Toluene 1000 04/12/23 09:31 6200BTBL
<5.00 µg/L 5.001,2,3-Trichlorobenzene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,2,4-Trichlorobenzene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,1,1-Trichloroethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,1,2-Trichloroethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00Trichloroethene 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00Trichlorofluoromethane 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.001,2,3-Trichloropropane 10 04/11/23 00:30 6200BMSA
2460 µg/L 5001,2,4-Trimethylbenzene 1000 04/12/23 09:31 6200BTBL
872 µg/L 5.001,3,5-Trimethylbenzene 10 04/11/23 00:30 6200BMSA
<50.0 µg/L 50.0Vinyl Acetate 10 04/11/23 00:30 6200BMSA
<5.00 µg/L 5.00Vinyl Chloride 10 04/11/23 00:30 6200BMSA
8520 µg/L 1000m,p-Xylene 1000 04/12/23 09:31 6200BTBL
4430 µg/L 500o-Xylene 1000 04/12/23 09:31 6200BTBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 14 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:RW-1
92834 Matrix:
3/28/2023 11:50
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
13000 µg/L 500Xylene (Total)1000 04/12/23 09:31 6200B
Surrogate: 4-Bromofluorobenzene 107 Limits: 70-130%04/11/23 00:3010 MSA V31866
Surrogate: Dibromofluoromethane 97.8 Limits: 70-130%04/11/23 00:3010 MSA V31866
Surrogate: 1,2-Dichloroethane - d4 101 Limits: 70-130%04/11/23 00:3010 MSA V31866
Surrogate: Toluene-d8 95.6 Limits: 70-130%04/11/23 00:3010 MSA V31866
Surrogate: 4-Bromofluorobenzene 103 Limits: 70-130%04/12/23 09:311000 TBL V31920
Surrogate: Dibromofluoromethane 99.4 Limits: 70-130%04/12/23 09:311000 TBL V31920
Surrogate: 1,2-Dichloroethane - d4 97.2 Limits: 70-130%04/12/23 09:311000 TBL V31920
Surrogate: Toluene-d8 99.8 Limits: 70-130%04/12/23 09:311000 TBL V31920
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 15 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-3
92835 Matrix:
3/28/2023 11:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1000 µg/L 1000Acetone 100 04/11/23 06:12 6200BMSA
19100 µg/L 500Benzene 1000 04/12/23 09:55 6200BTBL
<50.0 µg/L 50.0Bromobenzene 100 04/11/23 06:12 6200BMSA
<100 µg/L 100Bromochloromethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0Bromodichloromethane 100 04/11/23 06:12 6200BMSA
<500 µg/L 500Bromoform 100 04/11/23 06:12 6200BMSA
<100 µg/L 100Bromomethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0n-Butylbenzene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0sec-Butyl benzene 100 04/11/23 06:12 6200BMSA
<200 µg/L 200tert-Butyl benzene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0Carbon Tetrachloride 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0Chlorobenzene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0Chlorodibromomethane 100 04/11/23 06:12 6200BMSA
<100 µg/L 100Chloroethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0Chloroform 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0Chloromethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.02-Chlorotoluene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.04-Chlorotoluene 100 04/11/23 06:12 6200BMSA
<200 µg/L 2001,2-Dibromo-3-Chloropropane 100 04/11/23 06:12 6200BMSA
348 µg/L 50.01,2-Dibromoethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0Dibromomethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,2-Dichlorobenzene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,3-Dichlorobenzene 100 04/11/23 06:12 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 16 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-3
92835 Matrix:
3/28/2023 11:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<50.0 µg/L 50.01,4-Dichlorobenzene 100 04/11/23 06:12 6200BMSA
<500 µg/L 500Dichlorodifluoromethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,1-Dichloroethane 100 04/11/23 06:12 6200BMSA
570 µg/L 50.01,2-Dichloroethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,1-Dichloroethene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0cis-1,2-Dichloroethene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0trans-1,2-Dichloroethene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,2-Dichloropropane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,3-Dichloropropane 100 04/11/23 06:12 6200BMSA
<200 µg/L 2002,2-Dichloropropane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,1-Dichloropropene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0cis-1,3-Dichloropropene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0trans-1,3-Dichloropropene 100 04/11/23 06:12 6200BMSA
<20000 µg/L 20000Ethanol 100 04/11/23 06:12 6200BMSA
1850 µg/L 50.0Ethylbenzene 100 04/11/23 06:12 6200BMSA
<300 µg/L 300Hexachlorobutadiene 100 04/11/23 06:12 6200BMSA
793 µg/L 50.0Di-Isopropyl Ether (DIPE)100 04/11/23 06:12 6200BMSA
72.7 µg/L 50.0Isopropylbenzene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.04-Isopropyl toluene 100 04/11/23 06:12 6200BMSA
<100 µg/L 1002-Hexanone 100 04/11/23 06:12 6200BMSA
<500 µg/L 500Methyl Ethyl Ketone (MEK)100 04/11/23 06:12 6200BMSA
<200 µg/L 200Methylene Chloride 100 04/11/23 06:12 6200BMSA
2130 µg/L 100Methyl tert-butyl ether (MTBE)100 04/11/23 06:12 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 17 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-3
92835 Matrix:
3/28/2023 11:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<100 µg/L 1004-Methyl-2-Pentanone 100 04/11/23 06:12 6200BMSA
850 µg/L 100Naphthalene 100 04/11/23 06:12 6200BMSA
171 µg/L 50.0n-Propylbenzene 100 04/11/23 06:12 6200BMSA
74.9 µg/L 50.0Styrene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,1,1,2-Tetrachloroethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,1,2,2-Tetrachloroethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0Tetrachloroethene 100 04/11/23 06:12 6200BMSA
28600 µg/L 500Toluene 1000 04/12/23 09:55 6200BTBL
<50.0 µg/L 50.01,2,3-Trichlorobenzene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,2,4-Trichlorobenzene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,1,1-Trichloroethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,1,2-Trichloroethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0Trichloroethene 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0Trichlorofluoromethane 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.01,2,3-Trichloropropane 100 04/11/23 06:12 6200BMSA
2350 µg/L 50.01,2,4-Trimethylbenzene 100 04/11/23 06:12 6200BMSA
619 µg/L 50.01,3,5-Trimethylbenzene 100 04/11/23 06:12 6200BMSA
<500 µg/L 500Vinyl Acetate 100 04/11/23 06:12 6200BMSA
<50.0 µg/L 50.0Vinyl Chloride 100 04/11/23 06:12 6200BMSA
9140 µg/L 100m,p-Xylene 100 04/11/23 06:12 6200BMSA
4370 µg/L 50.0o-Xylene 100 04/11/23 06:12 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 18 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-3
92835 Matrix:
3/28/2023 11:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
13500 µg/L 50.0Xylene (Total)100 04/11/23 06:12 6200B
Surrogate: 4-Bromofluorobenzene 100 Limits: 70-130%04/11/23 06:12100 MSA V31866
Surrogate: Dibromofluoromethane 96.2 Limits: 70-130%04/11/23 06:12100 MSA V31866
Surrogate: 1,2-Dichloroethane - d4 101 Limits: 70-130%04/11/23 06:12100 MSA V31866
Surrogate: Toluene-d8 97.0 Limits: 70-130%04/11/23 06:12100 MSA V31866
Surrogate: 4-Bromofluorobenzene 106 Limits: 70-130%04/12/23 09:551000 TBL V31920
Surrogate: Dibromofluoromethane 99.6 Limits: 70-130%04/12/23 09:551000 TBL V31920
Surrogate: 1,2-Dichloroethane - d4 96.0 Limits: 70-130%04/12/23 09:551000 TBL V31920
Surrogate: Toluene-d8 102 Limits: 70-130%04/12/23 09:551000 TBL V31920
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 19 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-4
92836 Matrix:
3/28/2023 11:20
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1000 µg/L 1000Acetone 100 04/11/23 05:41 6200BMSA
1230 µg/L 50.0Benzene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Bromobenzene 100 04/11/23 05:41 6200BMSA
<100 µg/L 100Bromochloromethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Bromodichloromethane 100 04/11/23 05:41 6200BMSA
<500 µg/L 500Bromoform 100 04/11/23 05:41 6200BMSA
<100 µg/L 100Bromomethane 100 04/11/23 05:41 6200BMSA
81.5 µg/L 50.0n-Butylbenzene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0sec-Butyl benzene 100 04/11/23 05:41 6200BMSA
<200 µg/L 200tert-Butyl benzene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Carbon Tetrachloride 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Chlorobenzene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Chlorodibromomethane 100 04/11/23 05:41 6200BMSA
<100 µg/L 100Chloroethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Chloroform 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Chloromethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.02-Chlorotoluene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.04-Chlorotoluene 100 04/11/23 05:41 6200BMSA
<200 µg/L 2001,2-Dibromo-3-Chloropropane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,2-Dibromoethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Dibromomethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,2-Dichlorobenzene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,3-Dichlorobenzene 100 04/11/23 05:41 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 20 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-4
92836 Matrix:
3/28/2023 11:20
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<50.0 µg/L 50.01,4-Dichlorobenzene 100 04/11/23 05:41 6200BMSA
<500 µg/L 500Dichlorodifluoromethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,1-Dichloroethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,2-Dichloroethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,1-Dichloroethene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0cis-1,2-Dichloroethene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0trans-1,2-Dichloroethene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,2-Dichloropropane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,3-Dichloropropane 100 04/11/23 05:41 6200BMSA
<200 µg/L 2002,2-Dichloropropane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,1-Dichloropropene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0cis-1,3-Dichloropropene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0trans-1,3-Dichloropropene 100 04/11/23 05:41 6200BMSA
<20000 µg/L 20000Ethanol 100 04/11/23 05:41 6200BMSA
871 µg/L 50.0Ethylbenzene 100 04/11/23 05:41 6200BMSA
<300 µg/L 300Hexachlorobutadiene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Di-Isopropyl Ether (DIPE)100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Isopropylbenzene 100 04/11/23 05:41 6200BMSA
58.0 µg/L 50.04-Isopropyl toluene 100 04/11/23 05:41 6200BMSA
113 µg/L 1002-Hexanone 100 04/11/23 05:41 6200BMSA
<500 µg/L 500Methyl Ethyl Ketone (MEK)100 04/11/23 05:41 6200BMSA
<200 µg/L 200Methylene Chloride 100 04/11/23 05:41 6200BMSA
<100 µg/L 100Methyl tert-butyl ether (MTBE)100 04/11/23 05:41 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 21 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-4
92836 Matrix:
3/28/2023 11:20
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<100 µg/L 1004-Methyl-2-Pentanone 100 04/11/23 05:41 6200BMSA
719 µg/L 100Naphthalene 100 04/11/23 05:41 6200BMSA
91.4 µg/L 50.0n-Propylbenzene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Styrene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,1,1,2-Tetrachloroethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,1,2,2-Tetrachloroethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Tetrachloroethene 100 04/11/23 05:41 6200BMSA
9190 µg/L 50.0Toluene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,2,3-Trichlorobenzene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,2,4-Trichlorobenzene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,1,1-Trichloroethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,1,2-Trichloroethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Trichloroethene 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Trichlorofluoromethane 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.01,2,3-Trichloropropane 100 04/11/23 05:41 6200BMSA
2990 µg/L 50.01,2,4-Trimethylbenzene 100 04/11/23 05:41 6200BMSA
911 µg/L 50.01,3,5-Trimethylbenzene 100 04/11/23 05:41 6200BMSA
<500 µg/L 500Vinyl Acetate 100 04/11/23 05:41 6200BMSA
<50.0 µg/L 50.0Vinyl Chloride 100 04/11/23 05:41 6200BMSA
8070 µg/L 100m,p-Xylene 100 04/11/23 05:41 6200BMSA
3790 µg/L 50.0o-Xylene 100 04/11/23 05:41 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 22 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-4
92836 Matrix:
3/28/2023 11:20
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
11900 µg/L 50.0Xylene (Total)100 04/11/23 05:41 6200B
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%04/11/23 05:41100 MSA V31865
Surrogate: Dibromofluoromethane 102 Limits: 70-130%04/11/23 05:41100 MSA V31865
Surrogate: 1,2-Dichloroethane - d4 102 Limits: 70-130%04/11/23 05:41100 MSA V31865
Surrogate: Toluene-d8 103 Limits: 70-130%04/11/23 05:41100 MSA V31865
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 23 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-5
92837 Matrix:
3/28/2023 11:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 µg/L 10.0Acetone 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Benzene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Bromobenzene 1 04/11/23 01:09 6200BMSA
<1.00 µg/L 1.00Bromochloromethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Bromodichloromethane 1 04/11/23 01:09 6200BMSA
<5.00 µg/L 5.00Bromoform 1 04/11/23 01:09 6200BMSA
<1.00 µg/L 1.00Bromomethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500n-Butylbenzene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500sec-Butyl benzene 1 04/11/23 01:09 6200BMSA
<2.00 µg/L 2.00tert-Butyl benzene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Carbon Tetrachloride 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Chlorobenzene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Chlorodibromomethane 1 04/11/23 01:09 6200BMSA
<1.00 µg/L 1.00Chloroethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Chloroform 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Chloromethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5002-Chlorotoluene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5004-Chlorotoluene 1 04/11/23 01:09 6200BMSA
<2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,2-Dibromoethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Dibromomethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,2-Dichlorobenzene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,3-Dichlorobenzene 1 04/11/23 01:09 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 24 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-5
92837 Matrix:
3/28/2023 11:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.5001,4-Dichlorobenzene 1 04/11/23 01:09 6200BMSA
<5.00 µg/L 5.00Dichlorodifluoromethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,2-Dichloroethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500cis-1,2-Dichloroethene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500trans-1,2-Dichloroethene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,2-Dichloropropane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,3-Dichloropropane 1 04/11/23 01:09 6200BMSA
<2.00 µg/L 2.002,2-Dichloropropane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,1-Dichloropropene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500cis-1,3-Dichloropropene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500trans-1,3-Dichloropropene 1 04/11/23 01:09 6200BMSA
<200 µg/L 200Ethanol 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Ethylbenzene 1 04/11/23 01:09 6200BMSA
<3.00 µg/L 3.00Hexachlorobutadiene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Di-Isopropyl Ether (DIPE)1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Isopropylbenzene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5004-Isopropyl toluene 1 04/11/23 01:09 6200BMSA
<1.00 µg/L 1.002-Hexanone 1 04/11/23 01:09 6200BMSA
<5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 04/11/23 01:09 6200BMSA
<2.00 µg/L 2.00Methylene Chloride 1 04/11/23 01:09 6200BMSA
<1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/11/23 01:09 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 25 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-5
92837 Matrix:
3/28/2023 11:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1.00 µg/L 1.004-Methyl-2-Pentanone 1 04/11/23 01:09 6200BMSA
<1.00 µg/L 1.00Naphthalene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500n-Propylbenzene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Styrene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Tetrachloroethene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Toluene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,1,1-Trichloroethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,1,2-Trichloroethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Trichloroethene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Trichlorofluoromethane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichloropropane 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 04/11/23 01:09 6200BMSA
<5.00 µg/L 5.00Vinyl Acetate 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500Vinyl Chloride 1 04/11/23 01:09 6200BMSA
<1.00 µg/L 1.00m,p-Xylene 1 04/11/23 01:09 6200BMSA
<0.500 µg/L 0.500o-Xylene 1 04/11/23 01:09 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 26 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-5
92837 Matrix:
3/28/2023 11:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.500Xylene (Total)1 04/11/23 01:09 6200B
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%04/11/23 01:091 MSA V31865
Surrogate: Dibromofluoromethane 101 Limits: 70-130%04/11/23 01:091 MSA V31865
Surrogate: 1,2-Dichloroethane - d4 102 Limits: 70-130%04/11/23 01:091 MSA V31865
Surrogate: Toluene-d8 104 Limits: 70-130%04/11/23 01:091 MSA V31865
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 27 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-6
92838 Matrix:
3/28/2023 13:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1000 H µg/L 1000Acetone 100 04/14/23 01:50 6200BMSA
37.1 µg/L 0.500Benzene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Bromobenzene 1 04/11/23 01:34 6200BMSA
<1.00 µg/L 1.00Bromochloromethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Bromodichloromethane 1 04/11/23 01:34 6200BMSA
<5.00 µg/L 5.00Bromoform 1 04/11/23 01:34 6200BMSA
<1.00 µg/L 1.00Bromomethane 1 04/11/23 01:34 6200BMSA
8.37 µg/L 0.500n-Butylbenzene 1 04/11/23 01:34 6200BMSA
7.31 µg/L 0.500sec-Butyl benzene 1 04/11/23 01:34 6200BMSA
2.93 µg/L 2.00tert-Butyl benzene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Carbon Tetrachloride 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Chlorobenzene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Chlorodibromomethane 1 04/11/23 01:34 6200BMSA
<1.00 µg/L 1.00Chloroethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Chloroform 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Chloromethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5002-Chlorotoluene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5004-Chlorotoluene 1 04/11/23 01:34 6200BMSA
<2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,2-Dibromoethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Dibromomethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,2-Dichlorobenzene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,3-Dichlorobenzene 1 04/11/23 01:34 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 28 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-6
92838 Matrix:
3/28/2023 13:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.5001,4-Dichlorobenzene 1 04/11/23 01:34 6200BMSA
<5.00 µg/L 5.00Dichlorodifluoromethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,2-Dichloroethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500cis-1,2-Dichloroethene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500trans-1,2-Dichloroethene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,2-Dichloropropane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,3-Dichloropropane 1 04/11/23 01:34 6200BMSA
<2.00 µg/L 2.002,2-Dichloropropane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,1-Dichloropropene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500cis-1,3-Dichloropropene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500trans-1,3-Dichloropropene 1 04/11/23 01:34 6200BMSA
<200 µg/L 200Ethanol 1 04/11/23 01:34 6200BMSA
886 H µg/L 50.0Ethylbenzene 100 04/14/23 01:50 6200BMSA
<3.00 µg/L 3.00Hexachlorobutadiene 1 04/11/23 01:34 6200BMSA
1.04 µg/L 0.500Di-Isopropyl Ether (DIPE)1 04/11/23 01:34 6200BMSA
59.2 µg/L 0.500Isopropylbenzene 1 04/11/23 01:34 6200BMSA
6.79 µg/L 0.5004-Isopropyl toluene 1 04/11/23 01:34 6200BMSA
39.7 µg/L 1.002-Hexanone 1 04/11/23 01:34 6200BMSA
<5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 04/11/23 01:34 6200BMSA
<2.00 µg/L 2.00Methylene Chloride 1 04/11/23 01:34 6200BMSA
1.84 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/11/23 01:34 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 29 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-6
92838 Matrix:
3/28/2023 13:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
18.3 µg/L 1.004-Methyl-2-Pentanone 1 04/11/23 01:34 6200BMSA
319 H µg/L 100Naphthalene 100 04/14/23 01:50 6200BMSA
146 H µg/L 50.0n-Propylbenzene 100 04/14/23 01:50 6200BMSA
40.0 µg/L 0.500Styrene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 04/11/23 01:34 6200B
<0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Tetrachloroethene 1 04/11/23 01:34 6200BMSA
376 H µg/L 50.0Toluene 100 04/14/23 01:50 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,1,1-Trichloroethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,1,2-Trichloroethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Trichloroethene 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Trichlorofluoromethane 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichloropropane 1 04/11/23 01:34 6200BMSA
1390 H µg/L 50.01,2,4-Trimethylbenzene 100 04/14/23 01:50 6200BMSA
393 H µg/L 50.01,3,5-Trimethylbenzene 100 04/14/23 01:50 6200BMSA
<5.00 µg/L 5.00Vinyl Acetate 1 04/11/23 01:34 6200BMSA
<0.500 µg/L 0.500Vinyl Chloride 1 04/11/23 01:34 6200BMSA
4010 H µg/L 100m,p-Xylene 100 04/14/23 01:50 6200BMSA
1300 H µg/L 50.0o-Xylene 100 04/14/23 01:50 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 30 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-6
92838 Matrix:
3/28/2023 13:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
5310 H µg/L 50.0Xylene (Total)100 04/14/23 01:50 6200B
Surrogate: 4-Bromofluorobenzene 109 Limits: 70-130%04/11/23 01:341 MSA V31865
Surrogate: Dibromofluoromethane 114 Limits: 70-130%04/11/23 01:341 MSA V31865
Surrogate: 1,2-Dichloroethane - d4 118 Limits: 70-130%04/11/23 01:341 MSA V31865
Surrogate: Toluene-d8 69.6 *Limits: 70-130%04/11/23 01:341 MSA V31865
Surrogate: 4-Bromofluorobenzene 100 Limits: 70-130%04/14/23 01:50100 MSA V32021
Surrogate: Dibromofluoromethane 98.4 Limits: 70-130%04/14/23 01:50100 MSA V32021
Surrogate: 1,2-Dichloroethane - d4 99.8 Limits: 70-130%04/14/23 01:50100 MSA V32021
Surrogate: Toluene-d8 104 Limits: 70-130%04/14/23 01:50100 MSA V32021
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 31 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-7
92839 Matrix:
3/28/2023 13:02
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 H µg/L 10.0Acetone 1 04/13/23 04:01 6200BTBL
0.520 H µg/L 0.500Benzene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Bromobenzene 1 04/13/23 04:01 6200BTBL
<1.00 H µg/L 1.00Bromochloromethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Bromodichloromethane 1 04/13/23 04:01 6200BTBL
<5.00 H
µg/L 5.00Bromoform 1 04/13/23 04:01 6200BTBL
<1.00 H µg/L 1.00Bromomethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500n-Butylbenzene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500sec-Butyl benzene 1 04/13/23 04:01 6200BTBL
<2.00 H µg/L 2.00tert-Butyl benzene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Carbon Tetrachloride 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Chlorobenzene 1 04/13/23 04:01 6200BTBL
<0.500 H
µg/L 0.500Chlorodibromomethane 1 04/13/23 04:01 6200BTBL
<1.00 H µg/L 1.00Chloroethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Chloroform 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Chloromethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5002-Chlorotoluene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5004-Chlorotoluene 1 04/13/23 04:01 6200BTBL
<2.00 H µg/L 2.001,2-Dibromo-3-Chloropropane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,2-Dibromoethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Dibromomethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,2-Dichlorobenzene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,3-Dichlorobenzene 1 04/13/23 04:01 6200BTBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 32 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-7
92839 Matrix:
3/28/2023 13:02
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 H µg/L 0.5001,4-Dichlorobenzene 1 04/13/23 04:01 6200BTBL
<5.00 H µg/L 5.00Dichlorodifluoromethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,1-Dichloroethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,2-Dichloroethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,1-Dichloroethene 1 04/13/23 04:01 6200BTBL
<0.500 H
µg/L 0.500cis-1,2-Dichloroethene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500trans-1,2-Dichloroethene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,2-Dichloropropane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,3-Dichloropropane 1 04/13/23 04:01 6200BTBL
<2.00 H µg/L 2.002,2-Dichloropropane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,1-Dichloropropene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500cis-1,3-Dichloropropene 1 04/13/23 04:01 6200BTBL
<0.500 H
µg/L 0.500trans-1,3-Dichloropropene 1 04/13/23 04:01 6200BTBL
<200 H µg/L 200Ethanol 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Ethylbenzene 1 04/13/23 04:01 6200BTBL
<3.00 H µg/L 3.00Hexachlorobutadiene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Di-Isopropyl Ether (DIPE)1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Isopropylbenzene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5004-Isopropyl toluene 1 04/13/23 04:01 6200BTBL
<1.00 H µg/L 1.002-Hexanone 1 04/13/23 04:01 6200BTBL
<5.00 H µg/L 5.00Methyl Ethyl Ketone (MEK)1 04/13/23 04:01 6200BTBL
<2.00 H µg/L 2.00Methylene Chloride 1 04/13/23 04:01 6200BTBL
<1.00 H µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/13/23 04:01 6200BTBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 33 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-7
92839 Matrix:
3/28/2023 13:02
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1.00 H µg/L 1.004-Methyl-2-Pentanone 1 04/13/23 04:01 6200BTBL
<1.00 H µg/L 1.00Naphthalene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500n-Propylbenzene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Styrene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,1,1,2-Tetrachloroethane 1 04/13/23 04:01 6200BTBL
<0.500 H
µg/L 0.5001,1,2,2-Tetrachloroethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Tetrachloroethene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Toluene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,2,3-Trichlorobenzene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,2,4-Trichlorobenzene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,1,1-Trichloroethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,1,2-Trichloroethane 1 04/13/23 04:01 6200BTBL
<0.500 H
µg/L 0.500Trichloroethene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Trichlorofluoromethane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,2,3-Trichloropropane 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,2,4-Trimethylbenzene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.5001,3,5-Trimethylbenzene 1 04/13/23 04:01 6200BTBL
<5.00 H µg/L 5.00Vinyl Acetate 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500Vinyl Chloride 1 04/13/23 04:01 6200BTBL
<1.00 H µg/L 1.00m,p-Xylene 1 04/13/23 04:01 6200BTBL
<0.500 H µg/L 0.500o-Xylene 1 04/13/23 04:01 6200BTBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 34 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-7
92839 Matrix:
3/28/2023 13:02
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 H µg/L 0.500Xylene (Total)1 04/13/23 04:01 6200B
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%04/11/23 01:581 MSA V31865
Surrogate: Dibromofluoromethane 104 Limits: 70-130%04/11/23 01:581 MSA V31865
Surrogate: 1,2-Dichloroethane - d4 105 Limits: 70-130%04/11/23 01:581 MSA V31865
Surrogate: Toluene-d8 101 Limits: 70-130%04/11/23 01:581 MSA V31865
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%04/13/23 04:011 TBL V31970
Surrogate: Dibromofluoromethane 99.4 Limits: 70-130%04/13/23 04:011 TBL V31970
Surrogate: 1,2-Dichloroethane - d4 99.6 Limits: 70-130%04/13/23 04:011 TBL V31970
Surrogate: Toluene-d8 102 Limits: 70-130%04/13/23 04:011 TBL V31970
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 35 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-8
92840 Matrix:
3/28/2023 13:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 H µg/L 10.0Acetone 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Benzene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Bromobenzene 1 04/13/23 04:26 6200BTBL
<1.00 H µg/L 1.00Bromochloromethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Bromodichloromethane 1 04/13/23 04:26 6200BTBL
<5.00 H
µg/L 5.00Bromoform 1 04/13/23 04:26 6200BTBL
<1.00 H µg/L 1.00Bromomethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500n-Butylbenzene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500sec-Butyl benzene 1 04/13/23 04:26 6200BTBL
<2.00 H µg/L 2.00tert-Butyl benzene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Carbon Tetrachloride 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Chlorobenzene 1 04/13/23 04:26 6200BTBL
<0.500 H
µg/L 0.500Chlorodibromomethane 1 04/13/23 04:26 6200BTBL
<1.00 H µg/L 1.00Chloroethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Chloroform 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Chloromethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5002-Chlorotoluene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5004-Chlorotoluene 1 04/13/23 04:26 6200BTBL
<2.00 H µg/L 2.001,2-Dibromo-3-Chloropropane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,2-Dibromoethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Dibromomethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,2-Dichlorobenzene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,3-Dichlorobenzene 1 04/13/23 04:26 6200BTBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 36 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-8
92840 Matrix:
3/28/2023 13:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 H µg/L 0.5001,4-Dichlorobenzene 1 04/13/23 04:26 6200BTBL
<5.00 H µg/L 5.00Dichlorodifluoromethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,1-Dichloroethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,2-Dichloroethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,1-Dichloroethene 1 04/13/23 04:26 6200BTBL
<0.500 H
µg/L 0.500cis-1,2-Dichloroethene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500trans-1,2-Dichloroethene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,2-Dichloropropane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,3-Dichloropropane 1 04/13/23 04:26 6200BTBL
<2.00 H µg/L 2.002,2-Dichloropropane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,1-Dichloropropene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500cis-1,3-Dichloropropene 1 04/13/23 04:26 6200BTBL
<0.500 H
µg/L 0.500trans-1,3-Dichloropropene 1 04/13/23 04:26 6200BTBL
<200 H µg/L 200Ethanol 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Ethylbenzene 1 04/13/23 04:26 6200BTBL
<3.00 H µg/L 3.00Hexachlorobutadiene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Di-Isopropyl Ether (DIPE)1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Isopropylbenzene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5004-Isopropyl toluene 1 04/13/23 04:26 6200BTBL
<1.00 H µg/L 1.002-Hexanone 1 04/13/23 04:26 6200BTBL
<5.00 H µg/L 5.00Methyl Ethyl Ketone (MEK)1 04/13/23 04:26 6200BTBL
<2.00 H µg/L 2.00Methylene Chloride 1 04/13/23 04:26 6200BTBL
<1.00 H µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/13/23 04:26 6200BTBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 37 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-8
92840 Matrix:
3/28/2023 13:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1.00 H µg/L 1.004-Methyl-2-Pentanone 1 04/13/23 04:26 6200BTBL
<1.00 H µg/L 1.00Naphthalene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500n-Propylbenzene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Styrene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,1,1,2-Tetrachloroethane 1 04/13/23 04:26 6200BTBL
<0.500 H
µg/L 0.5001,1,2,2-Tetrachloroethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Tetrachloroethene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Toluene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,2,3-Trichlorobenzene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,2,4-Trichlorobenzene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,1,1-Trichloroethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,1,2-Trichloroethane 1 04/13/23 04:26 6200BTBL
<0.500 H
µg/L 0.500Trichloroethene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Trichlorofluoromethane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,2,3-Trichloropropane 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,2,4-Trimethylbenzene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.5001,3,5-Trimethylbenzene 1 04/13/23 04:26 6200BTBL
<5.00 H µg/L 5.00Vinyl Acetate 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500Vinyl Chloride 1 04/13/23 04:26 6200BTBL
<1.00 H µg/L 1.00m,p-Xylene 1 04/13/23 04:26 6200BTBL
<0.500 H µg/L 0.500o-Xylene 1 04/13/23 04:26 6200BTBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 38 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-8
92840 Matrix:
3/28/2023 13:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 H µg/L 0.500Xylene (Total)1 04/13/23 04:26 6200B
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%04/11/23 02:231 MSA V31865
Surrogate: Dibromofluoromethane 101 Limits: 70-130%04/11/23 02:231 MSA V31865
Surrogate: 1,2-Dichloroethane - d4 101 Limits: 70-130%04/11/23 02:231 MSA V31865
Surrogate: Toluene-d8 100 Limits: 70-130%04/11/23 02:231 MSA V31865
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%04/13/23 04:261 TBL V31970
Surrogate: Dibromofluoromethane 102 Limits: 70-130%04/13/23 04:261 TBL V31970
Surrogate: 1,2-Dichloroethane - d4 100 Limits: 70-130%04/13/23 04:261 TBL V31970
Surrogate: Toluene-d8 101 Limits: 70-130%04/13/23 04:261 TBL V31970
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 39 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-10
92841 Matrix:
3/28/2023 12:45
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 µg/L 10.0Acetone 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Benzene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Bromobenzene 1 04/11/23 02:48 6200BMSA
<1.00 µg/L 1.00Bromochloromethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Bromodichloromethane 1 04/11/23 02:48 6200BMSA
<5.00 µg/L 5.00Bromoform 1 04/11/23 02:48 6200BMSA
<1.00 µg/L 1.00Bromomethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500n-Butylbenzene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500sec-Butyl benzene 1 04/11/23 02:48 6200BMSA
<2.00 µg/L 2.00tert-Butyl benzene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Carbon Tetrachloride 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Chlorobenzene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Chlorodibromomethane 1 04/11/23 02:48 6200BMSA
<1.00 µg/L 1.00Chloroethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Chloroform 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Chloromethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5002-Chlorotoluene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5004-Chlorotoluene 1 04/11/23 02:48 6200BMSA
<2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,2-Dibromoethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Dibromomethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,2-Dichlorobenzene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,3-Dichlorobenzene 1 04/11/23 02:48 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 40 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-10
92841 Matrix:
3/28/2023 12:45
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.5001,4-Dichlorobenzene 1 04/11/23 02:48 6200BMSA
<5.00 µg/L 5.00Dichlorodifluoromethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,2-Dichloroethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500cis-1,2-Dichloroethene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500trans-1,2-Dichloroethene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,2-Dichloropropane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,3-Dichloropropane 1 04/11/23 02:48 6200BMSA
<2.00 µg/L 2.002,2-Dichloropropane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,1-Dichloropropene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500cis-1,3-Dichloropropene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500trans-1,3-Dichloropropene 1 04/11/23 02:48 6200BMSA
<200 µg/L 200Ethanol 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Ethylbenzene 1 04/11/23 02:48 6200BMSA
<3.00 µg/L 3.00Hexachlorobutadiene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Di-Isopropyl Ether (DIPE)1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Isopropylbenzene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5004-Isopropyl toluene 1 04/11/23 02:48 6200BMSA
<1.00 µg/L 1.002-Hexanone 1 04/11/23 02:48 6200BMSA
<5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 04/11/23 02:48 6200BMSA
<2.00 µg/L 2.00Methylene Chloride 1 04/11/23 02:48 6200BMSA
<1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/11/23 02:48 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 41 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-10
92841 Matrix:
3/28/2023 12:45
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1.00 µg/L 1.004-Methyl-2-Pentanone 1 04/11/23 02:48 6200BMSA
<1.00 µg/L 1.00Naphthalene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500n-Propylbenzene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Styrene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Tetrachloroethene 1 04/11/23 02:48 6200BMSA
1.67 µg/L 0.500Toluene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,1,1-Trichloroethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,1,2-Trichloroethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Trichloroethene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Trichlorofluoromethane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichloropropane 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 04/11/23 02:48 6200BMSA
<5.00 µg/L 5.00Vinyl Acetate 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500Vinyl Chloride 1 04/11/23 02:48 6200BMSA
<1.00 µg/L 1.00m,p-Xylene 1 04/11/23 02:48 6200BMSA
<0.500 µg/L 0.500o-Xylene 1 04/11/23 02:48 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 42 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:MW-10
92841 Matrix:
3/28/2023 12:45
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.500Xylene (Total)1 04/11/23 02:48 6200B
Surrogate: 4-Bromofluorobenzene 106 Limits: 70-130%04/11/23 02:481 MSA V31865
Surrogate: Dibromofluoromethane 102 Limits: 70-130%04/11/23 02:481 MSA V31865
Surrogate: 1,2-Dichloroethane - d4 100 Limits: 70-130%04/11/23 02:481 MSA V31865
Surrogate: Toluene-d8 103 Limits: 70-130%04/11/23 02:481 MSA V31865
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 43 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:TB
92842 Matrix:
3/28/2023 0:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 µg/L 10.0Acetone 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Benzene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Bromobenzene 1 04/10/23 21:51 6200BMSA
<1.00 µg/L 1.00Bromochloromethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Bromodichloromethane 1 04/10/23 21:51 6200BMSA
<5.00 µg/L 5.00Bromoform 1 04/10/23 21:51 6200BMSA
<1.00 µg/L 1.00Bromomethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500n-Butylbenzene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500sec-Butyl benzene 1 04/10/23 21:51 6200BMSA
<2.00 µg/L 2.00tert-Butyl benzene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Carbon Tetrachloride 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Chlorobenzene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Chlorodibromomethane 1 04/10/23 21:51 6200BMSA
<1.00 µg/L 1.00Chloroethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Chloroform 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Chloromethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5002-Chlorotoluene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5004-Chlorotoluene 1 04/10/23 21:51 6200BMSA
<2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,2-Dibromoethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Dibromomethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,2-Dichlorobenzene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,3-Dichlorobenzene 1 04/10/23 21:51 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 44 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:TB
92842 Matrix:
3/28/2023 0:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.5001,4-Dichlorobenzene 1 04/10/23 21:51 6200BMSA
<5.00 µg/L 5.00Dichlorodifluoromethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,2-Dichloroethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500cis-1,2-Dichloroethene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500trans-1,2-Dichloroethene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,2-Dichloropropane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,3-Dichloropropane 1 04/10/23 21:51 6200BMSA
<2.00 µg/L 2.002,2-Dichloropropane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,1-Dichloropropene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500cis-1,3-Dichloropropene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500trans-1,3-Dichloropropene 1 04/10/23 21:51 6200BMSA
<200 µg/L 200Ethanol 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Ethylbenzene 1 04/10/23 21:51 6200BMSA
<3.00 µg/L 3.00Hexachlorobutadiene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Di-Isopropyl Ether (DIPE)1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Isopropylbenzene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5004-Isopropyl toluene 1 04/10/23 21:51 6200BMSA
<1.00 µg/L 1.002-Hexanone 1 04/10/23 21:51 6200BMSA
<5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 04/10/23 21:51 6200BMSA
<2.00 µg/L 2.00Methylene Chloride 1 04/10/23 21:51 6200BMSA
<1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/10/23 21:51 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 45 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:TB
92842 Matrix:
3/28/2023 0:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1.00 µg/L 1.004-Methyl-2-Pentanone 1 04/10/23 21:51 6200BMSA
<1.00 µg/L 1.00Naphthalene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500n-Propylbenzene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Styrene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Tetrachloroethene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Toluene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,1,1-Trichloroethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,1,2-Trichloroethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Trichloroethene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Trichlorofluoromethane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichloropropane 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 04/10/23 21:51 6200BMSA
<5.00 µg/L 5.00Vinyl Acetate 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500Vinyl Chloride 1 04/10/23 21:51 6200BMSA
<1.00 µg/L 1.00m,p-Xylene 1 04/10/23 21:51 6200BMSA
<0.500 µg/L 0.500o-Xylene 1 04/10/23 21:51 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 46 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:TB
92842 Matrix:
3/28/2023 0:00
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.500Xylene (Total)1 04/10/23 21:51 6200B
Surrogate: 4-Bromofluorobenzene 103 Limits: 70-130%04/10/23 21:511 MSA V31865
Surrogate: Dibromofluoromethane 100 Limits: 70-130%04/10/23 21:511 MSA V31865
Surrogate: 1,2-Dichloroethane - d4 99.8 Limits: 70-130%04/10/23 21:511 MSA V31865
Surrogate: Toluene-d8 103 Limits: 70-130%04/10/23 21:511 MSA V31865
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 47 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:FB
92843 Matrix:
3/28/2023 10:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 µg/L 10.0Acetone 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Benzene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Bromobenzene 1 04/10/23 22:16 6200BMSA
<1.00 µg/L 1.00Bromochloromethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Bromodichloromethane 1 04/10/23 22:16 6200BMSA
<5.00 µg/L 5.00Bromoform 1 04/10/23 22:16 6200BMSA
<1.00 µg/L 1.00Bromomethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500n-Butylbenzene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500sec-Butyl benzene 1 04/10/23 22:16 6200BMSA
<2.00 µg/L 2.00tert-Butyl benzene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Carbon Tetrachloride 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Chlorobenzene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Chlorodibromomethane 1 04/10/23 22:16 6200BMSA
<1.00 µg/L 1.00Chloroethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Chloroform 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Chloromethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5002-Chlorotoluene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5004-Chlorotoluene 1 04/10/23 22:16 6200BMSA
<2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,2-Dibromoethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Dibromomethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,2-Dichlorobenzene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,3-Dichlorobenzene 1 04/10/23 22:16 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 48 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:FB
92843 Matrix:
3/28/2023 10:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.5001,4-Dichlorobenzene 1 04/10/23 22:16 6200BMSA
<5.00 µg/L 5.00Dichlorodifluoromethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,2-Dichloroethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500cis-1,2-Dichloroethene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500trans-1,2-Dichloroethene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,2-Dichloropropane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,3-Dichloropropane 1 04/10/23 22:16 6200BMSA
<2.00 µg/L 2.002,2-Dichloropropane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,1-Dichloropropene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500cis-1,3-Dichloropropene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500trans-1,3-Dichloropropene 1 04/10/23 22:16 6200BMSA
<200 µg/L 200Ethanol 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Ethylbenzene 1 04/10/23 22:16 6200BMSA
<3.00 µg/L 3.00Hexachlorobutadiene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Di-Isopropyl Ether (DIPE)1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Isopropylbenzene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5004-Isopropyl toluene 1 04/10/23 22:16 6200BMSA
<1.00 µg/L 1.002-Hexanone 1 04/10/23 22:16 6200BMSA
<5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 04/10/23 22:16 6200BMSA
<2.00 µg/L 2.00Methylene Chloride 1 04/10/23 22:16 6200BMSA
<1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/10/23 22:16 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 49 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:FB
92843 Matrix:
3/28/2023 10:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1.00 µg/L 1.004-Methyl-2-Pentanone 1 04/10/23 22:16 6200BMSA
<1.00 µg/L 1.00Naphthalene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500n-Propylbenzene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Styrene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Tetrachloroethene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Toluene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,1,1-Trichloroethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,1,2-Trichloroethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Trichloroethene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Trichlorofluoromethane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichloropropane 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 04/10/23 22:16 6200BMSA
<5.00 µg/L 5.00Vinyl Acetate 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500Vinyl Chloride 1 04/10/23 22:16 6200BMSA
<1.00 µg/L 1.00m,p-Xylene 1 04/10/23 22:16 6200BMSA
<0.500 µg/L 0.500o-Xylene 1 04/10/23 22:16 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 50 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:FB
92843 Matrix:
3/28/2023 10:35
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.500Xylene (Total)1 04/10/23 22:16 6200B
Surrogate: 4-Bromofluorobenzene 102 Limits: 70-130%04/10/23 22:161 MSA V31865
Surrogate: Dibromofluoromethane 100 Limits: 70-130%04/10/23 22:161 MSA V31865
Surrogate: 1,2-Dichloroethane - d4 100 Limits: 70-130%04/10/23 22:161 MSA V31865
Surrogate: Toluene-d8 103 Limits: 70-130%04/10/23 22:161 MSA V31865
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 51 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:WSW-16
92844 Matrix:
3/28/2023 15:10
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<10.0 µg/L 10.0Acetone 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Benzene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Bromobenzene 1 04/11/23 03:13 6200BMSA
<1.00 µg/L 1.00Bromochloromethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Bromodichloromethane 1 04/11/23 03:13 6200BMSA
<5.00 µg/L 5.00Bromoform 1 04/11/23 03:13 6200BMSA
<1.00 µg/L 1.00Bromomethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500n-Butylbenzene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500sec-Butyl benzene 1 04/11/23 03:13 6200BMSA
<2.00 µg/L 2.00tert-Butyl benzene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Carbon Tetrachloride 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Chlorobenzene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Chlorodibromomethane 1 04/11/23 03:13 6200BMSA
<1.00 µg/L 1.00Chloroethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Chloroform 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Chloromethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5002-Chlorotoluene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5004-Chlorotoluene 1 04/11/23 03:13 6200BMSA
<2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,2-Dibromoethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Dibromomethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,2-Dichlorobenzene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,3-Dichlorobenzene 1 04/11/23 03:13 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 52 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:WSW-16
92844 Matrix:
3/28/2023 15:10
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.5001,4-Dichlorobenzene 1 04/11/23 03:13 6200BMSA
<5.00 µg/L 5.00Dichlorodifluoromethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,2-Dichloroethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,1-Dichloroethene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500cis-1,2-Dichloroethene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500trans-1,2-Dichloroethene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,2-Dichloropropane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,3-Dichloropropane 1 04/11/23 03:13 6200BMSA
<2.00 µg/L 2.002,2-Dichloropropane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,1-Dichloropropene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500cis-1,3-Dichloropropene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500trans-1,3-Dichloropropene 1 04/11/23 03:13 6200BMSA
<200 µg/L 200Ethanol 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Ethylbenzene 1 04/11/23 03:13 6200BMSA
<3.00 µg/L 3.00Hexachlorobutadiene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Di-Isopropyl Ether (DIPE)1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Isopropylbenzene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5004-Isopropyl toluene 1 04/11/23 03:13 6200BMSA
<1.00 µg/L 1.002-Hexanone 1 04/11/23 03:13 6200BMSA
<5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 04/11/23 03:13 6200BMSA
<2.00 µg/L 2.00Methylene Chloride 1 04/11/23 03:13 6200BMSA
<1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/11/23 03:13 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 53 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:WSW-16
92844 Matrix:
3/28/2023 15:10
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<1.00 µg/L 1.004-Methyl-2-Pentanone 1 04/11/23 03:13 6200BMSA
<1.00 µg/L 1.00Naphthalene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500n-Propylbenzene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Styrene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Tetrachloroethene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Toluene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,1,1-Trichloroethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,1,2-Trichloroethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Trichloroethene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Trichlorofluoromethane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,2,3-Trichloropropane 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 04/11/23 03:13 6200BMSA
<5.00 µg/L 5.00Vinyl Acetate 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500Vinyl Chloride 1 04/11/23 03:13 6200BMSA
<1.00 µg/L 1.00m,p-Xylene 1 04/11/23 03:13 6200BMSA
<0.500 µg/L 0.500o-Xylene 1 04/11/23 03:13 6200BMSA
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 54 of 80
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27511
23-094-0011
01221
Withers & Ravenel
115 Mackenan Dr. BUILDING 117
David Vail
Cary
23-0307-6B Received : 04/04/2023
Virgina's Gas Station
Report Date : 04/17/2023
Sample ID :
Lab No :
Sampled:WSW-16
92844 Matrix:
3/28/2023 15:10
Aqueous
Test Results Units MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.500 µg/L 0.500Xylene (Total)1 04/11/23 03:13 6200B
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%04/11/23 03:131 MSA V31865
Surrogate: Dibromofluoromethane 102 Limits: 70-130%04/11/23 03:131 MSA V31865
Surrogate: 1,2-Dichloroethane - d4 101 Limits: 70-130%04/11/23 03:131 MSA V31865
Surrogate: Toluene-d8 102 Limits: 70-130%04/11/23 03:131 MSA V31865
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLBeyond holding timeH
Page 55 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31866QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31860
Associated Lab Samples: 92833, 92834, 92835
LRB-V31860 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/10/23 22:2710.0< 10.0µg/LAcetone
04/10/23 22:270.500< 0.500µg/LBenzene
04/10/23 22:270.500< 0.500µg/LBromobenzene
04/10/23 22:271.00< 1.00µg/LBromochloromethane
04/10/23 22:270.500< 0.500µg/LBromodichloromethane
04/10/23 22:275.00< 5.00µg/LBromoform
04/10/23 22:271.00< 1.00µg/LBromomethane
04/10/23 22:270.500< 0.500µg/Ln-Butylbenzene
04/10/23 22:270.500< 0.500µg/Lsec-Butyl benzene
04/10/23 22:272.00< 2.00µg/Ltert-Butyl benzene
04/10/23 22:270.500< 0.500µg/LCarbon Tetrachloride
04/10/23 22:270.500< 0.500µg/LChlorobenzene
04/10/23 22:270.500< 0.500µg/LChlorodibromomethane
04/10/23 22:271.00< 1.00µg/LChloroethane
04/10/23 22:270.500< 0.500µg/LChloroform
04/10/23 22:270.500< 0.500µg/LChloromethane
04/10/23 22:270.500< 0.500µg/L2-Chlorotoluene
04/10/23 22:270.500< 0.500µg/L4-Chlorotoluene
04/10/23 22:272.00< 2.00µg/L1,2-Dibromo-3-Chloropropane
04/10/23 22:270.500< 0.500µg/L1,2-Dibromoethane
04/10/23 22:270.500< 0.500µg/LDibromomethane
04/10/23 22:270.500< 0.500µg/L1,2-Dichlorobenzene
04/10/23 22:270.500< 0.500µg/L1,3-Dichlorobenzene
04/10/23 22:270.500< 0.500µg/L1,4-Dichlorobenzene
04/10/23 22:275.00< 5.00µg/LDichlorodifluoromethane
04/10/23 22:270.500< 0.500µg/L1,1-Dichloroethane
04/10/23 22:270.500< 0.500µg/L1,2-Dichloroethane
Page 1 of 22Date:04/17/2023 12:41 PM
Page 56 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31866QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31860
Associated Lab Samples: 92833, 92834, 92835
LRB-V31860 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/10/23 22:270.500< 0.500µg/L1,1-Dichloroethene
04/10/23 22:270.500< 0.500µg/Lcis-1,2-Dichloroethene
04/10/23 22:270.500< 0.500µg/Ltrans-1,2-Dichloroethene
04/10/23 22:270.500< 0.500µg/L1,2-Dichloropropane
04/10/23 22:270.500< 0.500µg/L1,3-Dichloropropane
04/10/23 22:272.00< 2.00µg/L2,2-Dichloropropane
04/10/23 22:270.500< 0.500µg/L1,1-Dichloropropene
04/10/23 22:270.500< 0.500µg/Lcis-1,3-Dichloropropene
04/10/23 22:270.500< 0.500µg/Ltrans-1,3-Dichloropropene
04/10/23 22:27200< 200µg/LEthanol
04/10/23 22:270.500< 0.500µg/LEthylbenzene
04/10/23 22:273.00< 3.00µg/LHexachlorobutadiene
04/10/23 22:270.500< 0.500µg/LDi-Isopropyl Ether (DIPE)
04/10/23 22:270.500< 0.500µg/LIsopropylbenzene
04/10/23 22:270.500< 0.500µg/L4-Isopropyl toluene
04/10/23 22:271.00< 1.00µg/L2-Hexanone
04/10/23 22:275.00< 5.00µg/LMethyl Ethyl Ketone (MEK)
04/10/23 22:272.00< 2.00µg/LMethylene Chloride
04/10/23 22:271.00< 1.00µg/LMethyl tert-butyl ether (MTBE)
04/10/23 22:271.00< 1.00µg/L4-Methyl-2-Pentanone
04/10/23 22:271.00< 1.00µg/LNaphthalene
04/10/23 22:270.500< 0.500µg/Ln-Propylbenzene
04/10/23 22:270.500< 0.500µg/LStyrene
04/10/23 22:270.500< 0.500µg/L1,1,1,2-Tetrachloroethane
04/10/23 22:270.500< 0.500µg/L1,1,2,2-Tetrachloroethane
04/10/23 22:270.500< 0.500µg/LTetrachloroethene
04/10/23 22:270.500< 0.500µg/LToluene
Page 2 of 22Date:04/17/2023 12:41 PM
Page 57 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31866QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31860
Associated Lab Samples: 92833, 92834, 92835
LRB-V31860 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/10/23 22:270.500< 0.500µg/L1,2,3-Trichlorobenzene
04/10/23 22:270.500< 0.500µg/L1,2,4-Trichlorobenzene
04/10/23 22:270.500< 0.500µg/L1,1,1-Trichloroethane
04/10/23 22:270.500< 0.500µg/L1,1,2-Trichloroethane
04/10/23 22:270.500< 0.500µg/LTrichloroethene
04/10/23 22:270.500< 0.500µg/LTrichlorofluoromethane
04/10/23 22:270.500< 0.500µg/L1,2,3-Trichloropropane
04/10/23 22:270.500< 0.500µg/L1,2,4-Trimethylbenzene
04/10/23 22:270.500< 0.500µg/L1,3,5-Trimethylbenzene
04/10/23 22:275.00< 5.00µg/LVinyl Acetate
04/10/23 22:270.500< 0.500µg/LVinyl Chloride
04/10/23 22:271.00< 1.00µg/Lm,p-Xylene
04/10/23 22:270.500< 0.500µg/Lo-Xylene
04/10/23 22:274-Bromofluorobenzene (S)103 70-130
04/10/23 22:27Dibromofluoromethane (S)101 70-130
04/10/23 22:271,2-Dichloroethane - d4 (S)99.2 70-130
04/10/23 22:27Toluene-d8 (S)100 70-130
LCS-V31860 LCSD-V31860Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
30.6 76.571.228.540.0µg/LAcetone 40-160 7.1 20.0
20.5 10399.519.920.0µg/LBenzene 70-130 2.9 20.0
21.2 10610320.520.0µg/LBromobenzene 70-130 3.3 20.0
21.3 10710020.020.0µg/LBromochloromethane 70-130 6.2 20.0
20.2 10198.519.720.0µg/LBromodichloromethane 70-130 2.5 20.0
Page 3 of 22Date:04/17/2023 12:41 PM
Page 58 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31866QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31860
LCS-V31860 LCSD-V31860Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
21.0 10599.519.920.0µg/LBromoform 70-130 5.3 20.0
21.9 11010520.920.0µg/LBromomethane 60-140 4.6 20.0
21.1 10698.519.720.0µg/Ln-Butylbenzene 70-130 6.8 20.0
20.4 10296.019.220.0µg/Lsec-Butyl benzene 70-130 6.0 20.0
20.6 10396.019.220.0µg/Ltert-Butyl benzene 70-130 7.0 20.0
20.6 10397.019.420.0µg/LCarbon Tetrachloride 70-130 6.0 20.0
21.2 10610220.420.0µg/LChlorobenzene 70-130 3.8 20.0
21.0 10510120.120.0µg/LChlorodibromomethane 70-130 4.3 20.0
20.7 10498.519.720.0µg/LChloroethane 60-140 4.9 20.0
20.7 10410020.020.0µg/LChloroform 70-130 3.4 20.0
21.1 10698.019.620.0µg/LChloromethane 60-140 7.3 20.0
20.3 10298.519.720.0µg/L2-Chlorotoluene 70-130 3.0 20.0
20.5 10398.519.720.0µg/L4-Chlorotoluene 70-130 3.9 20.0
23.5 11810521.020.0µg/L1,2-Dibromo-3-Chloropropane 70-130 11.2 20.0
20.7 10497.019.420.0µg/L1,2-Dibromoethane 70-130 6.4 20.0
20.7 10496.519.320.0µg/LDibromomethane 70-130 7.0 20.0
21.1 10610220.420.0µg/L1,2-Dichlorobenzene 70-130 3.3 20.0
20.4 10210120.220.0µg/L1,3-Dichlorobenzene 70-130 0.9 20.0
20.6 10399.019.820.0µg/L1,4-Dichlorobenzene 70-130 3.9 20.0
19.0 95.089.017.820.0µg/LDichlorodifluoromethane 60-140 6.5 20.0
21.0 10510220.320.0µg/L1,1-Dichloroethane 70-130 3.3 20.0
19.8 99.096.019.220.0µg/L1,2-Dichloroethane 70-130 3.0 20.0
21.0 10510020.020.0µg/L1,1-Dichloroethene 70-130 4.8 20.0
20.3 10299.019.820.0µg/Lcis-1,2-Dichloroethene 70-130 2.4 20.0
20.4 10293.518.720.0µg/Ltrans-1,2-Dichloroethene 70-130 8.6 20.0
20.4 10298.519.720.0µg/L1,2-Dichloropropane 70-130 3.4 20.0
Page 4 of 22Date:04/17/2023 12:41 PM
Page 59 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31866QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31860
LCS-V31860 LCSD-V31860Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
20.6 10399.519.920.0µg/L1,3-Dichloropropane 70-130 3.4 20.0
21.6 10896.019.220.0µg/L2,2-Dichloropropane 70-130 11.7 20.0
21.9 11099.019.820.0µg/L1,1-Dichloropropene 70-130 10.0 20.0
20.3 10299.519.920.0µg/Lcis-1,3-Dichloropropene 70-130 1.9 20.0
20.9 10598.019.620.0µg/Ltrans-1,3-Dichloropropene 70-130 6.4 20.0
484 96.886.8434500µg/LEthanol 60-140 10.8 20.0
20.2 10197.019.420.0µg/LEthylbenzene 70-130 4.0 20.0
21.3 10797.019.420.0µg/LHexachlorobutadiene 70-130 9.3 20.0
20.0 10096.019.220.0µg/LDi-Isopropyl Ether (DIPE)70-130 4.0 20.0
20.8 10499.519.920.0µg/LIsopropylbenzene 70-130 4.4 20.0
21.3 10710220.420.0µg/L4-Isopropyl toluene 70-130 4.3 20.0
21.0 10590.518.120.0µg/L2-Hexanone 60-140 14.8 20.0
17.8 89.078.515.720.0µg/LMethyl Ethyl Ketone (MEK)60-140 12.5 20.0
20.1 10196.519.320.0µg/LMethylene Chloride 70-130 4.0 20.0
20.7 10410020.020.0µg/LMethyl tert-butyl ether (MTBE)70-130 3.4 20.0
20.2 10197.019.420.0µg/L4-Methyl-2-Pentanone 60-140 4.0 20.0
21.4 10710120.220.0µg/LNaphthalene 70-130 5.7 20.0
20.7 10497.519.520.0µg/Ln-Propylbenzene 70-130 5.9 20.0
20.4 10210120.120.0µg/LStyrene 70-130 1.4 20.0
20.7 10410220.420.0µg/L1,1,1,2-Tetrachloroethane 70-130 1.4 20.0
20.7 10499.019.820.0µg/L1,1,2,2-Tetrachloroethane 70-130 4.4 20.0
20.6 10397.019.420.0µg/LTetrachloroethene 70-130 6.0 20.0
20.4 10297.519.520.0µg/LToluene 70-130 4.5 20.0
22.7 11410821.520.0µg/L1,2,3-Trichlorobenzene 70-130 5.4 20.0
23.3 11710721.420.0µg/L1,2,4-Trichlorobenzene 70-130 8.5 20.0
21.1 10610220.320.0µg/L1,1,1-Trichloroethane 70-130 3.8 20.0
Page 5 of 22Date:04/17/2023 12:41 PM
Page 60 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31866QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31860
LCS-V31860 LCSD-V31860Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
19.5 97.596.019.220.0µg/L1,1,2-Trichloroethane 70-130 1.5 20.0
20.8 10497.019.420.0µg/LTrichloroethene 70-130 6.9 20.0
20.2 10194.518.920.0µg/LTrichlorofluoromethane 60-140 6.6 20.0
21.4 10790.518.120.0µg/L1,2,3-Trichloropropane 70-130 16.7 20.0
20.6 10399.019.820.0µg/L1,2,4-Trimethylbenzene 70-130 3.9 20.0
21.0 10510220.320.0µg/L1,3,5-Trimethylbenzene 70-130 3.3 20.0
20.5 10310220.320.0µg/LVinyl Acetate 60-140 0.9 20.0
20.6 10397.519.520.0µg/LVinyl Chloride 60-140 5.4 20.0
41.7 10499.239.740.0µg/Lm,p-Xylene 70-130 4.9 20.0
20.3 10298.019.620.0µg/Lo-Xylene 70-130 3.5 20.0
99.499.04-Bromofluorobenzene (S)70-130
10299.2Dibromofluoromethane (S)70-130
1021001,2-Dichloroethane - d4 (S)70-130
101101Toluene-d8 (S)70-130
Page 6 of 22Date:04/17/2023 12:41 PM
Page 61 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31865QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31864
Associated Lab Samples: 92836, 92837, 92838, 92841, 92842, 92843, 92844
LRB-V31864 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/10/23 21:2710.0< 10.0µg/LAcetone
04/10/23 21:270.500< 0.500µg/LBenzene
04/10/23 21:270.500< 0.500µg/LBromobenzene
04/10/23 21:271.00< 1.00µg/LBromochloromethane
04/10/23 21:270.500< 0.500µg/LBromodichloromethane
04/10/23 21:275.00< 5.00µg/LBromoform
04/10/23 21:271.00< 1.00µg/LBromomethane
04/10/23 21:270.500< 0.500µg/Ln-Butylbenzene
04/10/23 21:270.500< 0.500µg/Lsec-Butyl benzene
04/10/23 21:272.00< 2.00µg/Ltert-Butyl benzene
04/10/23 21:270.500< 0.500µg/LCarbon Tetrachloride
04/10/23 21:270.500< 0.500µg/LChlorobenzene
04/10/23 21:270.500< 0.500µg/LChlorodibromomethane
04/10/23 21:271.00< 1.00µg/LChloroethane
04/10/23 21:270.500< 0.500µg/LChloroform
04/10/23 21:270.500< 0.500µg/LChloromethane
04/10/23 21:270.500< 0.500µg/L2-Chlorotoluene
04/10/23 21:270.500< 0.500µg/L4-Chlorotoluene
04/10/23 21:272.00< 2.00µg/L1,2-Dibromo-3-Chloropropane
04/10/23 21:270.500< 0.500µg/L1,2-Dibromoethane
04/10/23 21:270.500< 0.500µg/LDibromomethane
04/10/23 21:270.500< 0.500µg/L1,2-Dichlorobenzene
04/10/23 21:270.500< 0.500µg/L1,3-Dichlorobenzene
04/10/23 21:270.500< 0.500µg/L1,4-Dichlorobenzene
04/10/23 21:275.00< 5.00µg/LDichlorodifluoromethane
04/10/23 21:270.500< 0.500µg/L1,1-Dichloroethane
04/10/23 21:270.500< 0.500µg/L1,2-Dichloroethane
Page 7 of 22Date:04/17/2023 12:41 PM
Page 62 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31865QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31864
Associated Lab Samples: 92836, 92837, 92838, 92841, 92842, 92843, 92844
LRB-V31864 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/10/23 21:270.500< 0.500µg/L1,1-Dichloroethene
04/10/23 21:270.500< 0.500µg/Lcis-1,2-Dichloroethene
04/10/23 21:270.500< 0.500µg/Ltrans-1,2-Dichloroethene
04/10/23 21:270.500< 0.500µg/L1,2-Dichloropropane
04/10/23 21:270.500< 0.500µg/L1,3-Dichloropropane
04/10/23 21:272.00< 2.00µg/L2,2-Dichloropropane
04/10/23 21:270.500< 0.500µg/L1,1-Dichloropropene
04/10/23 21:270.500< 0.500µg/Lcis-1,3-Dichloropropene
04/10/23 21:270.500< 0.500µg/Ltrans-1,3-Dichloropropene
04/10/23 21:27200< 200µg/LEthanol
04/10/23 21:270.500< 0.500µg/LEthylbenzene
04/10/23 21:273.00< 3.00µg/LHexachlorobutadiene
04/10/23 21:270.500< 0.500µg/LDi-Isopropyl Ether (DIPE)
04/10/23 21:270.500< 0.500µg/LIsopropylbenzene
04/10/23 21:270.500< 0.500µg/L4-Isopropyl toluene
04/10/23 21:271.00< 1.00µg/L2-Hexanone
04/10/23 21:275.00< 5.00µg/LMethyl Ethyl Ketone (MEK)
04/10/23 21:272.00< 2.00µg/LMethylene Chloride
04/10/23 21:271.00< 1.00µg/LMethyl tert-butyl ether (MTBE)
04/10/23 21:271.00< 1.00µg/L4-Methyl-2-Pentanone
04/10/23 21:271.00< 1.00µg/LNaphthalene
04/10/23 21:270.500< 0.500µg/Ln-Propylbenzene
04/10/23 21:270.500< 0.500µg/LStyrene
04/10/23 21:270.500< 0.500µg/L1,1,1,2-Tetrachloroethane
04/10/23 21:270.500< 0.500µg/L1,1,2,2-Tetrachloroethane
04/10/23 21:270.500< 0.500µg/LTetrachloroethene
04/10/23 21:270.500< 0.500µg/LToluene
Page 8 of 22Date:04/17/2023 12:41 PM
Page 63 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31865QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31864
Associated Lab Samples: 92836, 92837, 92838, 92841, 92842, 92843, 92844
LRB-V31864 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/10/23 21:270.500< 0.500µg/L1,2,3-Trichlorobenzene
04/10/23 21:270.500< 0.500µg/L1,2,4-Trichlorobenzene
04/10/23 21:270.500< 0.500µg/L1,1,1-Trichloroethane
04/10/23 21:270.500< 0.500µg/L1,1,2-Trichloroethane
04/10/23 21:270.500< 0.500µg/LTrichloroethene
04/10/23 21:270.500< 0.500µg/LTrichlorofluoromethane
04/10/23 21:270.500< 0.500µg/L1,2,3-Trichloropropane
04/10/23 21:270.500< 0.500µg/L1,2,4-Trimethylbenzene
04/10/23 21:270.500< 0.500µg/L1,3,5-Trimethylbenzene
04/10/23 21:275.00< 5.00µg/LVinyl Acetate
04/10/23 21:270.500< 0.500µg/LVinyl Chloride
04/10/23 21:271.00< 1.00µg/Lm,p-Xylene
04/10/23 21:270.500< 0.500µg/Lo-Xylene
04/10/23 21:274-Bromofluorobenzene (S)103 70-130
04/10/23 21:27Dibromofluoromethane (S)103 70-130
04/10/23 21:271,2-Dichloroethane - d4 (S)106 70-130
04/10/23 21:27Toluene-d8 (S)98.0 70-130
LCS-V31864 LCSD-V31864Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
37.4 93.510341.140.0µg/LAcetone 40-160 9.4 20.0
20.8 10410220.320.0µg/LBenzene 70-130 2.4 20.0
20.5 10310320.520.0µg/LBromobenzene 70-130 0.0 20.0
20.2 10196.019.220.0µg/LBromochloromethane 70-130 5.0 20.0
20.9 10510020.020.0µg/LBromodichloromethane 70-130 4.4 20.0
Page 9 of 22Date:04/17/2023 12:41 PM
Page 64 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31865QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31864
LCS-V31864 LCSD-V31864Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
19.4 97.096.519.320.0µg/LBromoform 70-130 0.5 20.0
21.8 10910921.720.0µg/LBromomethane 60-140 0.4 20.0
20.4 10210420.720.0µg/Ln-Butylbenzene 70-130 1.4 20.0
19.7 98.599.519.920.0µg/Lsec-Butyl benzene 70-130 1.0 20.0
19.7 98.510020.020.0µg/Ltert-Butyl benzene 70-130 1.5 20.0
20.5 10310120.220.0µg/LCarbon Tetrachloride 70-130 1.4 20.0
19.6 98.099.019.820.0µg/LChlorobenzene 70-130 1.0 20.0
20.3 10297.519.520.0µg/LChlorodibromomethane 70-130 4.0 20.0
21.1 10610320.620.0µg/LChloroethane 60-140 2.3 20.0
20.8 10410220.320.0µg/LChloroform 70-130 2.4 20.0
19.7 98.510120.220.0µg/LChloromethane 60-140 2.5 20.0
20.0 10010420.820.0µg/L2-Chlorotoluene 70-130 3.9 20.0
20.1 10110120.220.0µg/L4-Chlorotoluene 70-130 0.4 20.0
22.1 11198.519.720.0µg/L1,2-Dibromo-3-Chloropropane 70-130 11.4 20.0
20.6 10397.519.520.0µg/L1,2-Dibromoethane 70-130 5.4 20.0
21.1 10699.019.820.0µg/LDibromomethane 70-130 6.3 20.0
20.5 10310220.320.0µg/L1,2-Dichlorobenzene 70-130 0.9 20.0
20.4 10210120.220.0µg/L1,3-Dichlorobenzene 70-130 0.9 20.0
19.8 99.099.519.920.0µg/L1,4-Dichlorobenzene 70-130 0.5 20.0
20.0 10098.019.620.0µg/LDichlorodifluoromethane 60-140 2.0 20.0
20.7 10410320.620.0µg/L1,1-Dichloroethane 70-130 0.4 20.0
20.2 10196.519.320.0µg/L1,2-Dichloroethane 70-130 4.5 20.0
20.5 10310420.720.0µg/L1,1-Dichloroethene 70-130 0.9 20.0
20.4 10210120.220.0µg/Lcis-1,2-Dichloroethene 70-130 0.9 20.0
20.7 10499.519.920.0µg/Ltrans-1,2-Dichloroethene 70-130 3.9 20.0
20.9 10510120.120.0µg/L1,2-Dichloropropane 70-130 3.9 20.0
Page 10 of 22Date:04/17/2023 12:41 PM
Page 65 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31865QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31864
LCS-V31864 LCSD-V31864Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
20.5 10399.019.820.0µg/L1,3-Dichloropropane 70-130 3.4 20.0
19.5 97.598.519.720.0µg/L2,2-Dichloropropane 70-130 1.0 20.0
21.5 10810621.220.0µg/L1,1-Dichloropropene 70-130 1.4 20.0
21.1 10610020.020.0µg/Lcis-1,3-Dichloropropene 70-130 5.3 20.0
21.5 10810020.020.0µg/Ltrans-1,3-Dichloropropene 70-130 7.2 20.0
522 104101507500µg/LEthanol 60-140 2.9 20.0
19.6 98.096.019.220.0µg/LEthylbenzene 70-130 2.0 20.0
21.8 10910821.520.0µg/LHexachlorobutadiene 70-130 1.3 20.0
21.0 10510120.220.0µg/LDi-Isopropyl Ether (DIPE)70-130 3.8 20.0
20.6 10310521.020.0µg/LIsopropylbenzene 70-130 1.9 20.0
20.3 10210420.720.0µg/L4-Isopropyl toluene 70-130 1.9 20.0
21.1 10696.019.220.0µg/L2-Hexanone 60-140 9.4 20.0
18.2 91.080.516.120.0µg/LMethyl Ethyl Ketone (MEK)60-140 12.2 20.0
20.4 10296.019.220.0µg/LMethylene Chloride 70-130 6.0 20.0
21.3 10710020.020.0µg/LMethyl tert-butyl ether (MTBE)70-130 6.2 20.0
22.5 11310120.120.0µg/L4-Methyl-2-Pentanone 60-140 11.2 20.0
21.3 10799.519.920.0µg/LNaphthalene 70-130 6.7 20.0
19.9 99.510220.420.0µg/Ln-Propylbenzene 70-130 2.4 20.0
19.7 98.598.019.620.0µg/LStyrene 70-130 0.5 20.0
20.1 10110220.320.0µg/L1,1,1,2-Tetrachloroethane 70-130 0.9 20.0
21.5 10810120.220.0µg/L1,1,2,2-Tetrachloroethane 70-130 6.2 20.0
20.8 10410320.620.0µg/LTetrachloroethene 70-130 0.9 20.0
20.4 10210020.020.0µg/LToluene 70-130 1.9 20.0
22.7 11411322.520.0µg/L1,2,3-Trichlorobenzene 70-130 0.8 20.0
22.6 11311021.920.0µg/L1,2,4-Trichlorobenzene 70-130 3.1 20.0
20.5 10310020.020.0µg/L1,1,1-Trichloroethane 70-130 2.4 20.0
Page 11 of 22Date:04/17/2023 12:41 PM
Page 66 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31865QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31864
LCS-V31864 LCSD-V31864Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
21.6 10899.519.920.0µg/L1,1,2-Trichloroethane 70-130 8.1 20.0
20.3 10299.519.920.0µg/LTrichloroethene 70-130 1.9 20.0
19.8 99.010020.020.0µg/LTrichlorofluoromethane 60-140 1.0 20.0
20.4 10210220.420.0µg/L1,2,3-Trichloropropane 70-130 0.0 20.0
20.1 10110220.320.0µg/L1,2,4-Trimethylbenzene 70-130 0.9 20.0
20.0 10010320.520.0µg/L1,3,5-Trimethylbenzene 70-130 2.4 20.0
19.1 95.591.018.220.0µg/LVinyl Acetate 60-140 4.8 20.0
20.6 10310120.220.0µg/LVinyl Chloride 60-140 1.9 20.0
40.3 10110341.140.0µg/Lm,p-Xylene 70-130 1.9 20.0
19.1 95.598.019.620.0µg/Lo-Xylene 70-130 2.5 20.0
1001004-Bromofluorobenzene (S)70-130
102101Dibromofluoromethane (S)70-130
1061011,2-Dichloroethane - d4 (S)70-130
102101Toluene-d8 (S)70-130
Page 12 of 22Date:04/17/2023 12:41 PM
Page 67 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31920QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31919
Associated Lab Samples: 92834, 92835
LRB-V31919 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/12/23 01:460.500< 0.500µg/LBenzene
04/12/23 01:460.500< 0.500µg/LEthylbenzene
04/12/23 01:461.00< 1.00µg/LMethyl tert-butyl ether (MTBE)
04/12/23 01:460.500< 0.500µg/LToluene
04/12/23 01:460.500< 0.500µg/L1,2,4-Trimethylbenzene
04/12/23 01:461.00< 1.00µg/Lm,p-Xylene
04/12/23 01:460.500< 0.500µg/Lo-Xylene
04/12/23 01:464-Bromofluorobenzene (S)103 70-130
04/12/23 01:46Dibromofluoromethane (S)100 70-130
04/12/23 01:461,2-Dichloroethane - d4 (S)93.6 70-130
04/12/23 01:46Toluene-d8 (S)101 70-130
LCS-V31919 LCSD-V31919Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
20.6 10310220.420.0µg/LBenzene 70-130 0.9 20.0
20.1 10198.019.620.0µg/LEthylbenzene 70-130 2.5 20.0
20.6 10399.019.820.0µg/LMethyl tert-butyl ether (MTBE)70-130 3.9 20.0
20.0 10010020.020.0µg/LToluene 70-130 0.0 20.0
20.6 10310220.320.0µg/L1,2,4-Trimethylbenzene 70-130 1.4 20.0
41.2 10310140.440.0µg/Lm,p-Xylene 70-130 1.9 20.0
20.1 10199.019.820.0µg/Lo-Xylene 70-130 1.5 20.0
10199.04-Bromofluorobenzene (S)70-130
97.8101Dibromofluoromethane (S)70-130
98.097.81,2-Dichloroethane - d4 (S)70-130
Page 13 of 22Date:04/17/2023 12:41 PM
Page 68 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31920QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31919
LCS-V31919 LCSD-V31919Laboratory Control Sample & LCSD
LCSD
ResultParameter
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
100101Toluene-d8 (S)70-130
Page 14 of 22Date:04/17/2023 12:41 PM
Page 69 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31970QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31969
Associated Lab Samples: 92839, 92840
LRB-V31969 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/13/23 03:1210.0< 10.0µg/LAcetone
04/13/23 03:120.500< 0.500µg/LBenzene
04/13/23 03:120.500< 0.500µg/LBromobenzene
04/13/23 03:121.00< 1.00µg/LBromochloromethane
04/13/23 03:120.500< 0.500µg/LBromodichloromethane
04/13/23 03:125.00< 5.00µg/LBromoform
04/13/23 03:121.00< 1.00µg/LBromomethane
04/13/23 03:120.500< 0.500µg/Ln-Butylbenzene
04/13/23 03:120.500< 0.500µg/Lsec-Butyl benzene
04/13/23 03:122.00< 2.00µg/Ltert-Butyl benzene
04/13/23 03:120.500< 0.500µg/LCarbon Tetrachloride
04/13/23 03:120.500< 0.500µg/LChlorobenzene
04/13/23 03:120.500< 0.500µg/LChlorodibromomethane
04/13/23 03:121.00< 1.00µg/LChloroethane
04/13/23 03:120.500< 0.500µg/LChloroform
04/13/23 03:120.500< 0.500µg/LChloromethane
04/13/23 03:120.500< 0.500µg/L2-Chlorotoluene
04/13/23 03:120.500< 0.500µg/L4-Chlorotoluene
04/13/23 03:122.00< 2.00µg/L1,2-Dibromo-3-Chloropropane
04/13/23 03:120.500< 0.500µg/L1,2-Dibromoethane
04/13/23 03:120.500< 0.500µg/LDibromomethane
04/13/23 03:120.500< 0.500µg/L1,2-Dichlorobenzene
04/13/23 03:120.500< 0.500µg/L1,3-Dichlorobenzene
04/13/23 03:120.500< 0.500µg/L1,4-Dichlorobenzene
04/13/23 03:125.00< 5.00µg/LDichlorodifluoromethane
04/13/23 03:120.500< 0.500µg/L1,1-Dichloroethane
04/13/23 03:120.500< 0.500µg/L1,2-Dichloroethane
Page 15 of 22Date:04/17/2023 12:41 PM
Page 70 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31970QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31969
Associated Lab Samples: 92839, 92840
LRB-V31969 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/13/23 03:120.500< 0.500µg/L1,1-Dichloroethene
04/13/23 03:120.500< 0.500µg/Lcis-1,2-Dichloroethene
04/13/23 03:120.500< 0.500µg/Ltrans-1,2-Dichloroethene
04/13/23 03:120.500< 0.500µg/L1,2-Dichloropropane
04/13/23 03:120.500< 0.500µg/L1,3-Dichloropropane
04/13/23 03:122.00< 2.00µg/L2,2-Dichloropropane
04/13/23 03:120.500< 0.500µg/L1,1-Dichloropropene
04/13/23 03:120.500< 0.500µg/Lcis-1,3-Dichloropropene
04/13/23 03:120.500< 0.500µg/Ltrans-1,3-Dichloropropene
04/13/23 03:12200< 200µg/LEthanol
04/13/23 03:120.500< 0.500µg/LEthylbenzene
04/13/23 03:123.00< 3.00µg/LHexachlorobutadiene
04/13/23 03:120.500< 0.500µg/LDi-Isopropyl Ether (DIPE)
04/13/23 03:120.500< 0.500µg/LIsopropylbenzene
04/13/23 03:120.500< 0.500µg/L4-Isopropyl toluene
04/13/23 03:121.00< 1.00µg/L2-Hexanone
04/13/23 03:125.00< 5.00µg/LMethyl Ethyl Ketone (MEK)
04/13/23 03:122.00< 2.00µg/LMethylene Chloride
04/13/23 03:121.00< 1.00µg/LMethyl tert-butyl ether (MTBE)
04/13/23 03:121.00< 1.00µg/L4-Methyl-2-Pentanone
04/13/23 03:121.00< 1.00µg/LNaphthalene
04/13/23 03:120.500< 0.500µg/Ln-Propylbenzene
04/13/23 03:120.500< 0.500µg/LStyrene
04/13/23 03:120.500< 0.500µg/L1,1,1,2-Tetrachloroethane
04/13/23 03:120.500< 0.500µg/L1,1,2,2-Tetrachloroethane
04/13/23 03:120.500< 0.500µg/LTetrachloroethene
04/13/23 03:120.500< 0.500µg/LToluene
Page 16 of 22Date:04/17/2023 12:41 PM
Page 71 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31970QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31969
Associated Lab Samples: 92839, 92840
LRB-V31969 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/13/23 03:120.500< 0.500µg/L1,2,3-Trichlorobenzene
04/13/23 03:120.500< 0.500µg/L1,2,4-Trichlorobenzene
04/13/23 03:120.500< 0.500µg/L1,1,1-Trichloroethane
04/13/23 03:120.500< 0.500µg/L1,1,2-Trichloroethane
04/13/23 03:120.500< 0.500µg/LTrichloroethene
04/13/23 03:120.500< 0.500µg/LTrichlorofluoromethane
04/13/23 03:120.500< 0.500µg/L1,2,3-Trichloropropane
04/13/23 03:120.500< 0.500µg/L1,2,4-Trimethylbenzene
04/13/23 03:120.500< 0.500µg/L1,3,5-Trimethylbenzene
04/13/23 03:125.00< 5.00µg/LVinyl Acetate
04/13/23 03:120.500< 0.500µg/LVinyl Chloride
04/13/23 03:121.00< 1.00µg/Lm,p-Xylene
04/13/23 03:120.500< 0.500µg/Lo-Xylene
04/13/23 03:124-Bromofluorobenzene (S)103 70-130
04/13/23 03:12Dibromofluoromethane (S)102 70-130
04/13/23 03:121,2-Dichloroethane - d4 (S)104 70-130
04/13/23 03:12Toluene-d8 (S)101 70-130
LCS-V31969 LCSD-V31969Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
34.4 86.091.036.440.0µg/LAcetone 40-160 5.6 20.0
20.2 10193.518.720.0µg/LBenzene 70-130 7.7 20.0
20.2 10198.019.620.0µg/LBromobenzene 70-130 3.0 20.0
20.9 10599.519.920.0µg/LBromochloromethane 70-130 4.9 20.0
19.8 99.091.018.220.0µg/LBromodichloromethane 70-130 8.4 20.0
Page 17 of 22Date:04/17/2023 12:41 PM
Page 72 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31970QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31969
LCS-V31969 LCSD-V31969Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
20.6 10310420.720.0µg/LBromoform 70-130 0.4 20.0
21.3 10797.519.520.0µg/LBromomethane 60-140 8.8 20.0
19.1 95.591.518.320.0µg/Ln-Butylbenzene 70-130 4.2 20.0
18.8 94.087.517.520.0µg/Lsec-Butyl benzene 70-130 7.1 20.0
18.5 92.589.017.820.0µg/Ltert-Butyl benzene 70-130 3.8 20.0
18.9 94.589.017.820.0µg/LCarbon Tetrachloride 70-130 5.9 20.0
20.3 10295.019.020.0µg/LChlorobenzene 70-130 6.6 20.0
20.1 10197.019.420.0µg/LChlorodibromomethane 70-130 3.5 20.0
21.7 10910220.320.0µg/LChloroethane 60-140 6.6 20.0
19.7 98.594.518.920.0µg/LChloroform 70-130 4.1 20.0
19.6 98.095.019.020.0µg/LChloromethane 60-140 3.1 20.0
19.3 96.590.018.020.0µg/L2-Chlorotoluene 70-130 6.9 20.0
19.0 95.092.518.520.0µg/L4-Chlorotoluene 70-130 2.6 20.0
23.0 11512324.520.0µg/L1,2-Dibromo-3-Chloropropane 70-130 6.3 20.0
20.8 10410320.520.0µg/L1,2-Dibromoethane 70-130 1.4 20.0
20.9 10598.519.720.0µg/LDibromomethane 70-130 5.9 20.0
20.3 10296.519.320.0µg/L1,2-Dichlorobenzene 70-130 5.0 20.0
19.3 96.592.018.420.0µg/L1,3-Dichlorobenzene 70-130 4.7 20.0
19.1 95.592.518.520.0µg/L1,4-Dichlorobenzene 70-130 3.1 20.0
17.1 85.580.516.120.0µg/LDichlorodifluoromethane 60-140 6.0 20.0
20.2 10193.518.720.0µg/L1,1-Dichloroethane 70-130 7.7 20.0
19.8 99.094.518.920.0µg/L1,2-Dichloroethane 70-130 4.6 20.0
20.3 10292.518.520.0µg/L1,1-Dichloroethene 70-130 9.2 20.0
19.6 98.092.518.520.0µg/Lcis-1,2-Dichloroethene 70-130 5.7 20.0
19.4 97.091.518.320.0µg/Ltrans-1,2-Dichloroethene 70-130 5.8 20.0
19.9 99.594.518.920.0µg/L1,2-Dichloropropane 70-130 5.1 20.0
Page 18 of 22Date:04/17/2023 12:41 PM
Page 73 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31970QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31969
LCS-V31969 LCSD-V31969Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
20.2 10197.019.420.0µg/L1,3-Dichloropropane 70-130 4.0 20.0
17.7 88.582.516.520.0µg/L2,2-Dichloropropane 70-130 7.0 20.0
20.5 10399.019.820.0µg/L1,1-Dichloropropene 70-130 3.4 20.0
19.8 99.095.019.020.0µg/Lcis-1,3-Dichloropropene 70-130 4.1 20.0
19.7 98.594.518.920.0µg/Ltrans-1,3-Dichloropropene 70-130 4.1 20.0
610 122135677500µg/LEthanol 60-140 10.4 20.0
19.5 97.591.518.320.0µg/LEthylbenzene 70-130 6.3 20.0
19.5 97.588.017.620.0µg/LHexachlorobutadiene 70-130 10.2 20.0
19.6 98.094.518.920.0µg/LDi-Isopropyl Ether (DIPE)70-130 3.6 20.0
19.5 97.590.518.120.0µg/LIsopropylbenzene 70-130 7.4 20.0
19.3 96.591.518.320.0µg/L4-Isopropyl toluene 70-130 5.3 20.0
22.1 11111823.620.0µg/L2-Hexanone 60-140 6.5 20.0
19.8 99.010621.120.0µg/LMethyl Ethyl Ketone (MEK)60-140 6.3 20.0
20.3 10296.519.320.0µg/LMethylene Chloride 70-130 5.0 20.0
20.8 10410420.820.0µg/LMethyl tert-butyl ether (MTBE)70-130 0.0 20.0
22.3 11212023.920.0µg/L4-Methyl-2-Pentanone 60-140 6.9 20.0
21.6 10810921.720.0µg/LNaphthalene 70-130 0.4 20.0
18.8 94.088.517.720.0µg/Ln-Propylbenzene 70-130 6.0 20.0
19.8 99.089.517.920.0µg/LStyrene 70-130 10.0 20.0
20.3 10293.518.720.0µg/L1,1,1,2-Tetrachloroethane 70-130 8.2 20.0
20.9 10510621.120.0µg/L1,1,2,2-Tetrachloroethane 70-130 0.9 20.0
19.7 98.589.517.920.0µg/LTetrachloroethene 70-130 9.5 20.0
19.6 98.091.018.220.0µg/LToluene 70-130 7.4 20.0
21.8 10910721.420.0µg/L1,2,3-Trichlorobenzene 70-130 1.8 20.0
20.9 10510120.220.0µg/L1,2,4-Trichlorobenzene 70-130 3.4 20.0
20.0 10090.518.120.0µg/L1,1,1-Trichloroethane 70-130 9.9 20.0
Page 19 of 22Date:04/17/2023 12:41 PM
Page 74 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V31970QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V31969
LCS-V31969 LCSD-V31969Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
20.5 10398.019.620.0µg/L1,1,2-Trichloroethane 70-130 4.4 20.0
20.2 10192.518.520.0µg/LTrichloroethene 70-130 8.7 20.0
19.6 98.092.518.520.0µg/LTrichlorofluoromethane 60-140 5.7 20.0
19.5 97.510420.820.0µg/L1,2,3-Trichloropropane 70-130 6.4 20.0
19.3 96.591.518.320.0µg/L1,2,4-Trimethylbenzene 70-130 5.3 20.0
19.3 96.592.018.420.0µg/L1,3,5-Trimethylbenzene 70-130 4.7 20.0
18.6 93.094.518.920.0µg/LVinyl Acetate 60-140 1.6 20.0
19.4 97.090.018.020.0µg/LVinyl Chloride 60-140 7.4 20.0
39.2 98.093.037.240.0µg/Lm,p-Xylene 70-130 5.2 20.0
19.2 96.092.018.420.0µg/Lo-Xylene 70-130 4.2 20.0
99.099.64-Bromofluorobenzene (S)70-130
99.0100Dibromofluoromethane (S)70-130
1051041,2-Dichloroethane - d4 (S)70-130
101101Toluene-d8 (S)70-130
Page 20 of 22Date:04/17/2023 12:41 PM
Page 75 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V32021QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V32020
Associated Lab Samples: 92838
LRB-V32020 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLBlank
ResultUnits
%
Recovery
% Rec
Limits
04/13/23 19:1310.0< 10.0µg/LAcetone
04/13/23 19:130.500< 0.500µg/LEthylbenzene
04/13/23 19:131.00< 1.00µg/LNaphthalene
04/13/23 19:130.500< 0.500µg/Ln-Propylbenzene
04/13/23 19:130.500< 0.500µg/LToluene
04/13/23 19:130.500< 0.500µg/L1,2,4-Trimethylbenzene
04/13/23 19:130.500< 0.500µg/L1,3,5-Trimethylbenzene
04/13/23 19:131.00< 1.00µg/Lm,p-Xylene
04/13/23 19:130.500< 0.500µg/Lo-Xylene
04/13/23 19:134-Bromofluorobenzene (S)102 70-130
04/13/23 19:13Dibromofluoromethane (S)98.6 70-130
04/13/23 19:131,2-Dichloroethane - d4 (S)101 70-130
04/13/23 19:13Toluene-d8 (S)105 70-130
LCS-V32020 LCSD-V32020Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
49.1 12311947.640.0µg/LAcetone 40-160 3.1 20.0
18.7 93.599.019.820.0µg/LEthylbenzene 70-130 5.7 20.0
19.5 97.511723.420.0µg/LNaphthalene 70-130 18.1 20.0
19.2 96.010721.320.0µg/Ln-Propylbenzene 70-130 10.3 20.0
20.0 10010621.220.0µg/LToluene 70-130 5.8 20.0
19.4 97.010420.820.0µg/L1,2,4-Trimethylbenzene 70-130 6.9 20.0
19.3 96.510621.120.0µg/L1,3,5-Trimethylbenzene 70-130 8.9 20.0
40.0 10010341.240.0µg/Lm,p-Xylene 70-130 2.9 20.0
19.3 96.598.519.720.0µg/Lo-Xylene 70-130 2.0 20.0
Page 21 of 22Date:04/17/2023 12:41 PM
Page 76 of 80
Quality Control Data
23-094-0011Report No:
Project Description:
Client ID:Withers & Ravenel
Virgina's Gas Station
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V32021QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V32020
LCS-V32020 LCSD-V32020Laboratory Control Sample & LCSD
LCSD
ResultParameter
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
1021034-Bromofluorobenzene (S)70-130
98.499.6Dibromofluoromethane (S)70-130
1021021,2-Dichloroethane - d4 (S)70-130
101101Toluene-d8 (S)70-130
Page 22 of 22Date:04/17/2023 12:41 PM
Page 77 of 80
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:23-094-0011
Withers & Ravenel
01221
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:IRT15 0.8C
Chain of Custody (COC) present?Yes No
Yes No Not Present
Yes No Not Present
Yes No
COC agrees with sample label(s)? Yes No
COC properly completed
Samples in proper containers?
Sample containers intact?
Sufficient sample volume for indicated test(s)?
All samples received within holding time?
Cooler temperature in compliance?
Yes No
Yes No
Yes No
Yes No
Yes No
Yes NoCooler/Samples arrived at the laboratory on ice.
Samples were considered acceptable as cooling
process had begun.
Yes No
Yes No N/A
Yes No N/A
Yes No N/ASoil VOA method 5035 – compliance criteria met
Water - Sample containers properly preserved
Water - VOA vials free of headspace Yes No N/A
Trip Blanks received with VOAs
Low concentration EnCore samplers (48 hr)
High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)
High concentration container (48 hr)
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Number of coolers/boxes received
Yes No
1
Signature:Angelo Norvell Date & Time:04/04/2023 12:43:48
Special precautions or instructions included?
Comments:
Page 78 of 80
Page 79 of 80
Page 80 of 80
Appendix C
NCDEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
B
North Carolina Department of Environmental Quality
Risk Calculator
Virginia's Gas Station
8432 & 8434 US HWY 158, Stokesdale, NC
DWM - UST Section, State Lead Program
TF# 9351
January 2023
November 2022 EPA RSL Table
5/10/2023
Prepared By:David Vail, E.I.
WithersRavenel, Inc.
Liz Allyn, P.G.
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: TF# 9351
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual) 1.0E-06
Target Cancer Risk (cumulative) 1.0E-04
Target Hazard Index (individual) 2.0E-01
Target Hazard Index (cumulative) 1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg) 15
Exposure Duration (ED) (yr) 6
Exposure Frequency (EF) (d/yr) 350
Exposure Time (ET) (hr/d) 24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day) 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d) 0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day) 1
Lifetime (LT) (years)70
Body Weight (BW) (kg) 80
Exposure Duration (ED) (yr) 20
Exposure Frequency (EF) (d/yr) 350
Exposure Time (ET) (hr/d) 24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day) 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d) 2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day) 1
Lifetime (LT) (years)70
Body Weight (BW) (kg) 80
Exposure Duration (ED) (yr) 25
Exposure Frequency (EF) (d/yr) 250
Exposure Time (ET) (hr/d) 8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day) 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d) 0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day) 1
Lifetime (LT) (years)70
Body Weight (BW) (kg) 80
Working Weeks (EW) (wk/yr) 50
Exposure Duration (ED) (yr) 1
Exposure Frequency (EF) (d/yr) 250
Exposure Time (ET) (hr/d) 8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day) 330
1
70
80
330
1
250
8
3527
0.3
50
100
19652
2.5
0.71
1
20
350
24
6032
0.07
0.54
1
70
80
2373
0.2
200
6365
0.78
Input Form 1B
Exposure Unit ID: B
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: TF# 9351
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: B
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr) 365 NA 365
Body Weight (BW) (kg) 15 NA 15
Exposure Duration 0-2 (ED) (yr) 2 NA 2
Exposure Duration 2-6 (ED) (yr) 4 NA 4
Exposure Frequency (EF) (d/yr) 195 NA 195
Exposure Time (ET) (hr/d) 2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day) 200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr) 0.12 NA 0.12
Water Exposure Time (ETevent) (hr/event)2NA 2
Water Event Frequency (EV) (events/day) 1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg) 80 45 80
Exposure Duration 6-16 (ED) (yr) 10 10 10
Exposure Duration 16-26 (ED) (yr) 10 0 10
Exposure Frequency (EF) (d/yr) 195 90 195
Exposure Time (ET) (hr/d) 2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day) 100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr) 0.11 0.11 0.11
Water Exposure Time (ETevent) (hr/event)22 2
Water Event Frequency (EV) (events/day) 1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: TF# 9351
Exposure Unit ID: B
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
North Carolina DEQ Risk Calculator
Exposure Point ConcentrationsVersion Date: January 2023Basis: November 2022 EPA RSL TableSite ID: TF# 9351Exposure Unit ID: BDescription of Exposure Point Concentration Selection:NOTE: If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculationsExposure Point Concentration (ug/L)Notes: CAS Number ChemicalMinimum Concentration (Qualifier)Maximum Concentration (Qualifier)UnitsLocation of Maximum ConcentrationDetection FrequencyRange of Detection LimitsConcentration Used for ScreeningBackground ValueScreening Toxicity Value (Screening Level) (n/c)Potential ARAR/TBC ValuePotential ARAR/TBC SourceCOPC Flag (Y/N)Rationale for Selection or Deletion25000 Highest Concentration 71-43-2Benzene<0.5 25000 ug/L RW-181.5 Highest Concentration 104-51-8Butylbenzene, n-<0.5 81.5 ug/L MW-48.77 Highest Concentration 135-98-8Butylbenzene, sec-<0.5 8.77 ug/L RW-12.93 Highest Concentration 98-06-6Butylbenzene, tert-<2.0 2.93 ug/L MW-672.7 Highest Concentration 98-82-8Cumene<0.5 72.7 ug/L MW-3348 Highest Concentration 106-93-4Dibromoethane, 1,2-<0.5 348 ug/L MW-3570 Highest Concentration 107-06-2Dichloroethane, 1,2-<0.5 570 ug/L MW-3999 Highest Concentration 108-20-3Diisopropyl Ether<0.5 999 ug/L RW-11850 Highest Concentration 100-41-4Ethylbenzene<0.5 1850 ug/L MW-3113 Highest Concentration 591-78-6Hexanone, 2-<1 113 ug/L MW-418.3 Highest Concentration 108-10-1Methyl Isobutyl Ketone (4-methyl-2-pentanone)<1 18.3 ug/L MW-62130 Highest Concentration 1634-04-4Methyl tert-Butyl Ether (MTBE)<1 2130 ug/L MW-3 RW-1850 Highest Concentration 91-20-3~Naphthalene<1 850 ug/L MW-3171 Highest Concentration 103-65-1Propyl benzene<0.5 171 ug/L MW-374.9 Highest Concentration 100-42-5Styrene<0.5 74.9 ug/L MW-328600 Highest Concentration 108-88-3Toluene<0.5 28600 ug/L MW-32990 Highest Concentration 95-63-6Trimethylbenzene, 1,2,4-<0.5 2990 ug/L MW-4911 Highest Concentration 108-67-8Trimethylbenzene, 1,3,5-<0.5 911 ug/L MW-413500 Highest Concentration 1330-20-7 Xylenes <0.5 13500 ug/L MW-3Input Form 2BGroundwater Exposure Point Concentration TableNorth Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: TF# 9351
Exposure Unit ID: B
Receptor Pathway
Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use* NC NC NC
Soil NC NC NC
Groundwater Use* NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
Surface Water* NC NC NC
Receptor Pathway
Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air 1.9E-02 2.5E+02 YES
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Groundwater to Indoor Air 4.3E-03 5.8E+01 YES
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
3. NM = Not modeled, user did not check this pathway as complete.
4. NC = Pathway not calculated, required contaminant migration parameters were not entered.
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the NC
2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
North Carolina DEQ Risk Calculator
Sitewide RiskOutput Form 1BVersion Date: January 2023NOTE: If any changes were made, select "Update Sitewide Risk Values" to obtain updated values.Basis: November 2022 EPA RSL TableSite ID: TF# 9351Exposure Unit ID: BReceptor PathwayCheck box to include in site-wide risk calculationsCarcinogenic RiskHazard IndexCheck box to include in site-wide risk calculationsCarcinogenic RiskHazard IndexCheck box to include in site-wide risk calculationsCarcinogenic RiskHazard IndexCheck box to include in site-wide risk calculationsCarcinogenic RiskHazard IndexCheck box to include in site-wide risk calculationsCarcinogenic RiskHazard IndexCheck box to include in site-wide risk calculationsCarcinogenic RiskHazard IndexSoil NM NM NM NMGroundwater Use* NM NM NM NMSoil NM NM NM NMGroundwater Use*NM NM NM NMConstruction Worker Soil NM NMSoil NM NMSurface Water Use*NM NMGroundwater to Indoor Air NM NM NM NMSoil Gas to Indoor Air NM NM NM NMIndoor Air NMNM NMNMGroundwater to Indoor AirNM NM NM NMSoil Gas to Indoor AirNM NM NM NMIndoor AirNM NM NM NM0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+003. NM = Not Modeled4. NC = Pathway not calculatedTOTAL SITEWIDE RISK FOR EACH RECEPTORNotes:1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based closure.ResidentNon-Residential WorkerResidentNon-Residential WorkerRecreator/TrespasserVAPOR INTRUSION CALCULATORSDIRECT CONTACT SOIL AND WATER CALCULATORSNon-Residential Worker - Future Scenario Construction Worker Recreator/TrespasserResident - Current Scenario Resident - Future Scenario Non-Residential Worker - Current ScenarioNorth Carolina DEQ Risk Calculator
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Groundwater to Indoor Air
Version Date: January 2023
Basis: November 2022 EPA RSL Table
Site ID: TF# 9351
Exposure Unit ID: B
CAS # Chemical Name:
Groundwater
Concentration
(ug/L)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
71-43-2 Benzene 25000 5672.526574 1.6E+00 2.6E+01 3.6E-03 4.3E+01
104-51-8 Butylbenzene, n- 81.5 52.97833197 - -
135-98-8 Butylbenzene, sec- 8.77 6.310384301 - -
98-06-6 Butylbenzene, tert- 2.93 1.581193786 - -
98-82-8 Cumene 72.7 34.18029436 - 3.5E+02 2.0E-02
106-93-4 Dibromoethane, 1,2- 348 9.247751431 2.0E-02 7.9E+00 4.5E-04 2.3E-01
107-06-2 Dichloroethane, 1,2- 570 27.49795585 4.7E-01 6.1E+00 5.8E-05 9.0E-01
108-20-3 Diisopropyl Ether 999 104.5560098 - 6.1E+02 3.4E-02
100-41-4 Ethylbenzene 1850 595.9934587 4.9E+00 8.8E+02 1.2E-04 1.4E-01
591-78-6 Hexanone, 2-113 0.430564186 - 2.6E+01 3.3E-03
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone) 18.3 0.103246116 - 2.6E+03 7.9E-06
1634-04-4 Methyl tert-Butyl Ether (MTBE) 2130 51.11651676 4.7E+01 2.6E+03 1.1E-06 3.9E-03
91-20-3 ~Naphthalene 850 15.29026983 3.6E-01 2.6E+00 4.2E-05 1.2E+00
103-65-1 Propyl benzene 171 73.4055601 - 8.8E+02 1.7E-02
100-42-5 Styrene 74.9 8.420891251 - 8.8E+02 1.9E-03
108-88-3 Toluene 28600 7763.859362 - 4.4E+03 3.5E-01
95-63-6 Trimethylbenzene, 1,2,4- 2990 753.0008177 - 5.3E+01 2.9E+00
108-67-8 Trimethylbenzene, 1,3,5- 911 326.6340965 - 5.3E+01 1.2E+00
1330-20-7 Xylenes 13500 3659.239575 - 8.8E+01 8.4E+00
Cumulative:4.3E-03 5.8E+01
Groundwater concentrations are in ug/L. Air concentrations are in ug/m3.
Output Form 3D
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk,
no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Appendix D
General Standard Operating Procedures
Generalized Standard Operating Procedures (Not All Inclusive)

WithersRavenel
Our People. Your Success.
Soil Sampling, Soil Boring and Monitor Well Installation, Well Development Soil borings are installed utilizing a stainless-steel hand auger, direct-push hydraulic drill or auger rotary
drill using either a macro core™ sampler, hollow stem augers, or air rotary roller cone bit. Soil borings are
typically sampled at discrete intervals from the bucket of a clean stainless steel hand auger, direct push stainless steel sampler with acetate sleeve, or a split barrel sampler. When appropriate, soil samples may be collected from drill cuttings associated with the boring or well installation. Monitor wells are constructed within select soil borings of one, two, or four-inch inside diameter PVC
casing and machine slotted screen in accordance with NCAC Title 15A, Subchapter 02C (Well Construction Standards, Criteria and Standards Applicable to Water Supply and Certain Other Wells). Clean-washed “#2 Torpedo Sand” is typically utilized to fill the boring annulus surrounding the well screen, extending to a minimum of 1-foot above the well screen. A minimum 1-foot thick bentonite clay seal is emplaced above the sand pack and hydrated. Neat cement grout is placed in the remaining annulus
space from the upper portion of the bentonite seal to within 1-foot of surface grade. In coastal plain areas where shallow groundwater is encountered, a variance to construction standards may be employed to ensure the upper portion of the well screen intersects the upper aquifer surface. Wellheads may be completed with either concrete-set flush mounted traffic-bearing steel skirted manholes with bolt down covers or steel above-ground “stick-up” well protectors set in a concrete pad. The monitoring wells are
secured with locking caps. Temporary wells or piezometers may be completed with the PVC riser cut at or above grade, and are abandoned within 24-hours of their installation. Wells may be developed using a bailer, electric submersible pump, pneumatic pump, or peristaltic pump, dependent upon site conditions. When wells are developed by the driller, they may be developed with
any of the methods outlined above, in addition to air or water injection. Soil boring logs and well construction details are typically prepared for presentation in a report appendix. Borings completed in bedrock may be drilled using air rotary, coring, or sonic drilling methods. Groundwater Depth to Water Measurements

Groundwater level measurements are typically obtained using an electronic water level indicator which registers a tone and/or illuminated light when the probe contacts groundwater. Depth to groundwater measurements are obtained by lowering the probe attached to a cable usually marked in 0.01 foot intervals into the well until the probe of the meter intersects the water surface. The measurement from
the top of the riser pipe or top of casing (TOC) to the water level is recorded to the nearest 0.01 foot. The
electronic water level indicator probe and exposed probe cable is decontaminated between measurement locations.

Generalized Standard Operating Procedures (Not All Inclusive)

WithersRavenel
Our People. Your Success.
Free Product Level Measurements Light Non-Aqueous Phase Liquid (LNAPL) or “free product” present on the water table is measured using
an electronic oil/water interface probe. The interface probe has both an audible and illuminating light
that indicate when a liquid level is encountered. The oil/water interface probe registers a solid tone and solidly lit light when LNAPL petroleum product is encountered and a beeping tone flashing light when groundwater is encountered. Depth to LNAPL measurements are obtained by lowering the probe attached to a cable marked in 0.01 foot intervals into the well until the probe of the meter intersects the product or groundwater. The measurements from the top of the riser pipe or TOC to the liquid level are
recorded to the nearest 0.01 foot. The thickness of LNAPL is calculated by subtracting the depth to LNAPL measurement from the depth to groundwater measurement. The electronic interface probe is decontaminated between measurement locations. Soil Sampling and Field Screening
Soil sampling is performed in general accordance with ASTM: 1586-84 where applicable. Sampling procedures are followed to protect the chemical integrity of the soil samples and minimize the potential for cross contamination between sample locations, including discarding of the exterior of the sample which contacts the auger bucket, acetate sleeve, or split barrel sampler, the use of stainless steel sampling
equipment, and the thorough decontamination of sampling apparatus prior to use and between sample locations. Soil samples retained as a part of excavation or other intrusive “digging” activities may be collected from the bucket of excavation equipment or using a hand shovel, if appropriate. Care to collect soil samples
from excavation equipment includes retrieving native soil from material that has not made contact with the excavating equipment. Samples are collected in sealable bags or by directly filling sample containers as described above. Sampling is performed using new, disposable nitrile gloves for each sample location to ensure sample
integrity and minimize the potential for cross contamination or field personnel exposure to contaminants.
Sampling equipment such as hand auger extensions and buckets, direct push samplers, split spoons or shovels, are decontaminated prior to their use in the collection of samples. Samples are placed within laboratory grade sample containers provided by the laboratory to which the
samples are submitted, labeled, sealed, and placed in an ice filled cooler. An aliquot of the sample is
typically placed in a clean sealable bag and allowed to reach ambient air temperature for future screening of volatile vapor content with a photoionization detector (PID), flame-ionization detector (FID) or other portable screening device.
Screening of samples with a PID, FID or other field screening device is performed in accordance with
device manufacturer specifications for screening, following calibration of the instrument based on manufacturer recommended procedures.

Generalized Standard Operating Procedures (Not All Inclusive)

WithersRavenel
Our People. Your Success.
Groundwater Sampling Groundwater samples are generally collected using one of three standard methods – through the use of a
dedicated, disposable bailer, a peristaltic pump or submersible electric pump.
When sampling with a bailer, a minimum of three well volumes of groundwater are extracted from the well as a means of purging, unless the well is purged to a “dry” state prior to the removal of three volumes of water. Prior to collection of the groundwater sample with the bailer, the water level is allowed to recover to within 80% of the original level measured prior to purging.
When sampling with a peristaltic or submersible electric pump, polyethylene (PE) tubing (or equivalent) is emplaced into the screened section of the monitoring well, and the pump is used to extract water through the tubing. When using the either of these methods, general water quality measurements including but not limited to pH, temperature, dissolved oxygen (DO), oxygen reductive potential (ORP), specific
conductivity and turbidity may be used as methods for determining when an adequate purge of the well has been conducted. When water quality parameters are measured, the resulting data are included in well purge forms or field notes specific to each site and sampling point. Following the purging of three well volumes of groundwater (in the case of the bailed well) or stability of
monitored measurements (in the case of the peristaltic or submersible electric pump), the groundwater sample(s) are introduced directly into sample containers provided by the laboratory to which samples are ultimately submitted for analysis. Any samples requiring chemical preservation are contained in pre-preserved container(s) provided by the laboratory.
Sampling is performed using new, disposable nitrile gloves for each sample location to ensure sample integrity and minimize the potential for cross contamination of samples or field personnel exposure to contaminants. Water Supply Well Sampling

Sampling of water supply wells is accomplished through the collection of a representative sample from an in-line water tap or other point accessible for sampling. Where possible, the sample is collected from a point prior to any filtration or point of entry (POE) system which might be installed on a well. In some cases, samples will be collected from both pre and post-POE locations. Prior to the collection of samples
through an in-place sampling point, the tap or sampling port is cleaned with an Alconox® and deionized
water solution, rinsed with deionized water, and again with an isopropyl alcohol (IPA) rinse. In the case of active supply wells (e.g., a well with a useable well pump with an active power supply), the well pump is energized and allowed to run for a minimum of ten (10) minutes time, after which a sample is
contained in laboratory grade sample containers as described in the previous section. Water quality
parameters may be (but are not necessarily) measured in association with the well purging. Supply wells without active power supplies are not generally sampled, as the well seal cannot be compromised by individuals not certified as a well contractor. However, in the case of a well with no
power supply or pump installed, samples could be obtained through the use of a bailer, peristaltic pump or
electric submersible pump.
Generalized Standard Operating Procedures (Not All Inclusive)

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Decontamination Procedures Decontamination procedures employed in the performance of field activities will vary dependent upon
the method(s) of sampling performed at any site, but will generally include the following:
• Remove excess soil/sludge from any sampling equipment as needed, • Wash and scrub the equipment with a phosphate-free detergent such as Alconox® or Liquinox® in a contaminant-free tap water solution. Use a brush to remove particulate matter and surface films as necessary,
• Rinse thoroughly with tap water, • Rinse thoroughly with analyte-free water (deionized water),
 Rinse thoroughly with isopropyl alcohol, • Allow the equipment to air dry,
• Prevent inadvertent contamination during storage and transport (accomplished through storage of equipment in foil or plastic bags/sheeting). In the case of disposable bailers and tubing utilized for the purging and sampling of wells, these items may be decontaminated prior to their disposal. In general, no decontamination of these items is necessary
prior to their use in sampling.