RA-3534_22296_CA_MRP_20230104

ENVIRONMENTAL | CIVIL | G EOTECHNICAL

MONITORING REPORT

THOMAS RESIDENCE (FORMER ESSO STATION)
9925 NC HIGHWAY 87 NORTH AND PETE THOMAS ROAD PITTSBORO, CHATHAM COUNTY, NC NCDEQ INCIDENT NO. 22296 RISK CLASSIFICATION: H0234D
JANUARY 4, 2023

NCDEQ CONTRACT NO. N122019D TASK AUTHORIZATION NO. 03 CATLIN PROJECT NO. 220296
PREPARED FOR: MR. MARK PETERMANN NCDEQ, DWM, UST SECTION 1646 MAIL SERVICE CENTER RALEIGH, NC 27699-1646 PREPARED BY: CATLIN ENGINEERS AND SCIENTISTS 220 OLD DAIRY ROAD WILMINGTON, NC 28405 [phone]
CORPORATE LICENSURE NO. FOR ENGINEERING SERVICES C-0585
CORPORATE LICENSURE NO. FOR GEOLOGY SERVICES C-118

NCDEQ; 22296_Thomas Residence CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023
TABLE OF CONTENTS
PAGE
1.0 SITE INFORMATION 1
2.0 EXECUTIVE SUMMARY 2
3.0 SCOPE OF SERVICES 3
4.0 SITE HISTORY AND CHARACTERIZATION 3
4.1 UST OWNER AND OPERATOR INFORMATION 3 4.2 UST INFORMATION 4 4.3 CONTAMINANT SOURCE INVENTORY 4 4.4 SITE CHARACTERISTICS 4 4.5 OWNERS AND OCCUPANTS OF ADJOINING/NEARBY PROPERTIES AND LAND USE 4 4.6 RECEPTOR INFORMATION 5 4.7 PREVIOUS INVESTIGATIONS AND REMEDIAL ACTIVITIES 5
5.0 REGIONAL AND SITE GEOLOGY AND HYDROGEOLOGY 7
5.1 SOIL AND BEDROCK 7 5.2 HYDROGEOLOGY 8
6.0 SITE ASSESSMENT INFORMATION 8
6.1 GAUGING DATA 8 6.2 SAMPLING DATA 9 6.3 SUMMARY OF GROUNDWATER INFORMATION 10 6.4 EVALUATION OF GROUNDWATER, SURFACE WATER, AND LNAPL ASSESSMENT INFORMATION 11
7.0 CONCLUSIONS AND RECOMMENDATIONS 12
8.0 STATEMENTS AND CERTIFICATIONS 13
9.0 LIMITATIONS 13
10.0 REFERENCES 14

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CATLIN Project No. 220296 January 2023
TABLES

TABLE 1 SITE HISTORY – UST SYSTEM AND OTHER RELEASE INFORMATION
TABLE 2 PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION
TABLE 3 WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA
TABLE 4 SUMMARY OF GROUNDWATER LABORATORY RESULTS – STANDARD METHOD 6200B
TABLE 5 SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS – STANDARD METHOD 6200B

FIGURES

FIGURE 1 SITE VICINITY MAP
FIGURE 2 POTENTIAL RECEPTOR MAP
FIGURE 3 SITE MAP
FIGURE 4 GROUNDWATER ELEVATION – DECEMBER 1, 2022
FIGURE 5 MONITORING WELL GROUNDWATER SAMPLE ANALYTICAL RESULTS – DECEMBER 1, 2022
FIGURE 6 WATER SUPPLY WELL GROUNDWATER SAMPLE ANALYTICAL RESULTS – DECEMBER 1, 2022

APPENDICES

APPENDIX A HISTORICAL DATA
APPENDIX B SITE PHOTOGRAPHS
APPENDIX C JOB HAZARD ANALYSIS AND FIELD DATA SHEETS
APPENDIX D LABORATORY ANALYTICAL REPORT AND CHAIN OF CUSTODY DOCUMENT

NCDEQ; 22296_Thomas Residence CATLIN Engineers and Scientists
CATLIN Project No. 220296 1 January 2023
1.0 SITE INFORMATION
Site Identification
Date: 01/04/2023 Site Risk/Priority Rank: H0234D
UST Number: RA-3534 Incident Number: 22296
Site Name: Thomas Residence (Former Esso Station) Facility ID: Unknown
Site Location: 9925 NC Hwy 87 N and Pete Thomas Road
Nearest City/Town: Pittsboro County: Chatham
Description of Geographical Data Point: Former UST basin
Location Method: Google Earth
Latitude (decimal degrees): 35.842924° Longitude (decimal degrees): -79.26981°
Contacts Information
UST Owner: A.P. Buckner (Deceased), Rennie W. Buckner (Deceased)
Address: Not Applicable Phone: Not Applicable
UST Operator: W.C. Craton (Deceased), J.C. Johnson (Deceased)
Address: Not Applicable Phone: Not Applicable
Property Owner: Mark L. Metcalf
Address: 9998 NC Highway 87 N, Pittsboro, NC 27312 Phone: [phone]
Property Occupant: None
Address: Not Applicable Phone: Not Applicable
Consultant: CATLIN Engineers and Scientists
Address: 220 Old Dairy Rd., Wilmington, NC 28405 Phone: [phone]
Corporate Licensure No. For Engineering Services: C-0585
Corporate Geology License No.: C-118
Analytical Laboratory: Con-Test Analytical Laboratory State Certification: NC 652, NC-DW 25703
Address: 39 Spruce St., E. Longmeadow, MA 01028 Phone: [phone]
Release Information
Date Discovered: 03/16/2000
Estimated Quantity of Release: Unknown
Cause of Release: Leak in the UST system
Source of Release: UST system or associated fitting(s)
Sizes and contents of UST system(s) from which the release occurred:
• UST-1 1,000-gallon gasoline
• UST-2 1,000-gallon gasoline UST-3 kerosene of unknown capacity
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2.0 EXECUTIVE SUMMARY
The Thomas Residence (Former Esso Station) site is located at 9925 NC Highway 87 North, Pittsboro, Chatham County, North Carolina. The site was previously
owned by A.P. Buckner and Rennie W. Buckner and operated as a retail fuel station
by W.C. Craton and J.C. Johnson from the 1940s to 1961. One tank was used for private gasoline storage from the 1970s to 1983 (Powers, 2000). All parties are now deceased. The underground storage tank (UST) system consisted of two 1,000-gallon gasoline USTs and one kerosene UST of unknown volume. The gasoline
USTs were removed on February 12, 2003, and the state of the kerosene tank is
unknown.
The purpose of this report is to document the latest groundwater sampling event. On December 1, 2022, CATLIN Engineers and Scientists (CATLIN) personnel measured groundwater at approximately 12.5 feet deep across the site.
Groundwater samples from four monitoring wells and three water supply wells were
collected. Multiple monitoring wells were dry at the time of field activities, and it was discovered that water supply well WSW-1 was dry and a new well has been installed on the parcel (identified as WSW-1A).
The collected groundwater samples were submitted for laboratory analysis of
volatile organic compounds (VOCs) per Standard Method (SM) 6200B [plus
ethylene dibromide (EDB), methyl tert-butyl ether (MTBE), and isopropyl ether (IPE)].
Laboratory results reported multiple VOCs in the MW-1 and MW-2 samples at concentrations greater than those established in Title 15A of the North Carolina
Administrative Code, Subchapter 2L, Section .0202 Groundwater Quality Standards
(2L GWQS), but below the Gross Contaminant Levels (GCLs). Low or estimated concentrations (“J”-values) of analytes were detected in the samples from MW-4 and MW-6; however, they were well below their respective 2L GWQS.
Bromoform and chlorodibromomethane were reported in the sample from WSW-1A
at concentrations above 2L GWQS, along with multiple other VOCs above the
method detection limit but below 2L GWQS. No contaminants were above GCL. Only estimated concentrations of acetone were detected in the Thomas WSW and Metcalf WSW samples, but this is suspected to be a laboratory artifact.
Contaminant concentrations in the MW-2 sample appear to be relative to the
previous event (March 2022), while those in MW-1 have generally decreased.
Contaminant concentrations were previously below the reporting limits in WSW-1; however, several contaminants were reported in the sample from replacement well WSW-1A.
CATLIN recommends conducting a semi-annual sampling event in June 2023.
During the sampling event, all monitoring wells and water supply wells WSW-1A,
Thomas WSW, and Metcalf WSW are recommended to be sampled.
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CATLIN Project No. 220296 3 January 2023
3.0 SCOPE OF SERVICES The scope of services for this report was performed in general accordance with
CATLIN proposal number 220296.03P, dated November 14, 2022. Services were
authorized by the North Carolina Department of Environmental Quality (NCDEQ) Task Authorization (TA) #03, accepted November 14, 2022, and Contract Number N122019D.
The approved scope of services for this Task Authorization included:
• Collect groundwater samples from ten monitoring wells (MW-1 through MW-10);
• Collect groundwater samples from three water supply wells (WSW-1, Metcalf WSW, and Thomas WSW)
• Analyze 15 water samples (10 monitoring wells, three water supply wells, one field blank, and one trip blank) per SM 6200B (including EDB, MTBE,
and IPE); and
• Prepare and submit a monitoring report summarizing the findings. At the time of field activities, monitoring wells MW-3, MW-5, MW-7, MW-9, and
MW-10 were dry; therefore, these wells were not sampled. There was not enough
water in MW-8 to collect a sample. When CATLIN personnel went to sample WSW-1, it was discovered that this well was no longer active and a replacement well had been installed (WSW-1A). The
replacement well was sampled in place of the old well.
The remaining scope of services was conducted in general accordance with the approved TA.
4.0 SITE HISTORY AND CHARACTERIZATION
The Thomas Residence (former Esso Station) site is located at 9925 NC Highway 87 North (NC-87), Pittsboro, Chatham County, North Carolina, near the juncture of NC-87 and Pete Thomas Road (Figures 1 and 2). Summarized available historical
sampling and gauging data from other consultants are provided in Appendix A. Site
photographs are presented in Appendix B. 4.1 UST OWNER AND OPERATOR INFORMATION
According to previous reports, the USTs and former Esso Station were
owned by A.P. Buckner and Rennie W. Buckner. The station and USTs were operated by W.C. Craton and J.C. Johnson. The site operated as a retail fuel station from the 1940s to 1961. One tank was used for private gasoline storage from the 1970s to 1983 (Powers, 2000).

Available UST owner and operator information are provided in Table 1.
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4.2 UST INFORMATION The former UST system consisted of two 1,000-gallon gasoline USTs and
one kerosene UST of unknown size and were likely installed the 1940s. The
gasoline USTs were removed on February 12, 2003, but the state of the kerosene UST is unknown (ECS, 2020). Information about the UST system is provided in Table 1 and the locations of
the former UST system and dispenser island are illustrated on Figure 3.
4.3 CONTAMINANT SOURCE INVENTORY On February 29, 2000, a groundwater sample was obtained from the Thomas
residence supply well by the North Carolina Department of Health and
Human Services (NC DHHS) in response to a complaint about potentially contaminated water. Laboratory analysis revealed a MTBE concentration above 2L GWQS and the incident was opened on March 16, 2000. Analytical results of soil samples collected in October 2002 reported total petroleum
hydrocarbons (TPH) gasoline range organics (GRO) and diesel range
organics (DRO) above State Action Levels (Zimmerman, 2002). An initial investigation conducted by the NCDEQ Raleigh Regional Office UST Division reported that the most likely contaminant source was either a
gasoline aboveground storage tank (AST) located on the Thomas residence
or a heating oil AST at the farm residence between the Thomas residence and the former Esso Station. However, Herbert Thomas later reported that the AST on his property had not contained gasoline since 1970. Therefore, it was subsequently assumed that the contaminant source was potentially the
UST system at the former Esso Station.
The volume of product released from the UST system is unknown. Historical data from other consultants is provided in Appendix A.
4.4 SITE CHARACTERISTICS
The site is currently owned by Mr. Mark L. Metcalf. The site contains an overgrown building facing the highway on the southeastern portion of the parcel. The ground surface consists of gravel in front of the building and
grass on the remaining three sides. The northern portion of the parcel is
forested. Site photographs are included in Appendix B. 4.5 OWNERS AND OCCUPANTS OF ADJOINING/NEARBY PROPERTIES AND LAND USE

Nearby properties are a combination of private residences and vacant lots. To the north of the parcel is a vacant field and to the west is a property with
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residential buildings. The eastern side of the property is bound by NC-87 and a residential property is to the south.
4.6 RECEPTOR INFORMATION
CATLIN conducted the most recent receptor survey for the Thomas Residence site in March 2022. Pertinent receptor information is summarized below. Potential receptors are illustrated on Figure 2 and receptor information
is shown on Table 2.
Based on correspondence with the Chatham County Utilities and Water Division, municipal water is not available to properties within 1,500 feet of the site. A total of six water supply wells were identified. Two active potable wells
(WSW-1 and Metcalf WSW) were located within 250 feet of the site, and one
active potable well (Thomas WSW) was approximately 350 feet from the site. Between 1,000 and 1,500 feet from the site, two active potable wells and one inactive well were identified.
During the December 2022 field activities, it was discovered that water
supply well WSW-1 had run dry and was no longer active. A deeper replacement well was installed on the property in November 2022. The new well is identified as WSW-1A. Specific information obtained from the property residents is provided on Table 2.

Three surface water bodies were identified within 1,500 feet of the site. Two small ponds are located on neighboring properties and Lick Creek is 930 feet northeast of the site.
4.7 PREVIOUS INVESTIGATIONS AND REMEDIAL ACTIVITIES
As discussed above, a petroleum release was discovered in February 2000 through laboratory analysis of a groundwater sample obtained from the Thomas residence water supply well (Thomas WSW) by NC DHHS.
Analytical results revealed an MTBE concentration of 1,195.6 micrograms
per liter (µg/L) in the Thomas WSW sample. Due to the elevated MTBE concentration in the well, a point-of-entry (POE) water treatment system was subsequently installed on the Thomas residence well in March 2000 (NCDEQ, 2004).
The NCDEQ Raleigh Regional Office UST division conducted further groundwater sampling on August 10, 2000. Samples were obtained from four nearby water supply wells. Laboratory analysis did not detect any constituents in three of the samples. However, semi-volatile organic
compounds (SVOCs) (e.g., alkanes) were reported at concentrations above 2L GWQS in the sample from the Metcalf residence water supply well (Metcalf WSW) (Zimmerman, 2002).
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In July 2001, another groundwater sample was collected from Thomas WSW. Laboratory results reported a MTBE concentration of 5.5 µg/L in the sample.
Based on this analytical data, a Health Risk Evaluation prepared by a state
toxicologist determined that the water from Thomas WSW was acceptable for potable use. Therefore, the POE system was removed in August 2001 (NCDEQ, 2004).
The site was accepted into the NCDEQ UST Section Trust Fund Branch
State Lead Program in July 2002 (NCDEQ, 2004). In October 2002, 10 soil borings were advanced in the vicinity of the former USTs system at the Esso Station. TPH GRO and DRO were detected at concentrations above State Action Levels (ECS, 2020).

In February 2003, two 1,000-gallon gasoline USTs and approximately 223 tons of impacted soil were removed from the site. During closure activities, nine soil samples were taken from beneath the former USTs and dispenser island. Soil sample laboratory analytical results revealed TPH GRO and DRO
concentrations up to 730 milligrams per kilogram (mg/kg) and 51 mg/kg,
respectively. Although reported TPH concentrations were above State Action Levels, impacted soil was not excavated from near the dispenser island due to its proximity to the building canopy’s footing (ECS, 2020).
Since UST closure activities, additional soil borings have been advanced to
gather soil samples on the site on three occasions: to a depth of four feet on December 12, 2009, a depth of six feet on January 4, 2010, and assorted depths between four and ten feet on November 10, 2015. No samples from the December 2009 event contained any constituents above laboratory
reporting limits. Analysis of samples obtained during the January 2010 event
revealed petroleum constituents above their respective Soil-to-Groundwater (STGW) Maximum Soil Contaminant Concentrations (MSCC), but below their Residential MSCC. Laboratory data from the November 2015 sampling revealed targeted analyte concentrations above STGW and/or Residential
MSCCs in multiple samples (ECS, 2020). Between 2002 and 2019, ten shallow, Type II monitoring wells (MW-1 through MW-10) were installed on-site. Periodic groundwater monitoring events have been conducted at the site since 2004 by various consultants
(ECS, 2020). During the March 2019 monitoring event, ECS Southeast, LLP (ECS) deployed O-Sox remedial devices in MW-1 and MW-5. The remedial device in MW-5 was reportedly removed in March 2020 (ECS, 2020).
On October 25, 2019, ECS conducted a slug test at monitoring well MW-2 to help determine a hydraulic conductivity in the source area. Based on the
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slug test results, the hydraulic conductivity was calculated to be 0.0656 feet per day. In addition, ECS provided BioScreen modeling data in the December 2019 monitoring report. The objective of the model was to
determine the maximum extent of benzene migration at the site and to
determine if the nearby water supply well may be impacted. Based on the modeling results utilizing first order decay, in 100 years, non-compliant benzene concentrations were not expected to migrate more than 15 feet from the source area (ECS, 2019).

CATLIN conducted a sampling event in April 2021. Monitoring wells MW-1 through MW-10 were sampled, as well as three nearby water supply wells (WSW-1, Thomas WSW, and Metcalf WSW). Groundwater laboratory analysis revealed benzene and/or naphthalene above their respective 2L
GWQS in the samples collected from MW-1 and MW-2. However, all
contaminants were below their corresponding GCL. No targeted analytes were detected in any of the water supply well samples (CATLIN, 2021). In March 2022, CATLIN conducted a groundwater monitoring event and
receptor survey. Samples were obtained from nine of the on-site monitoring
wells (MW-9 was dry) and the same three water supply wells. Benzene and naphthalene were detected above their respective 2L GWQS in the MW-1 sample, but they were below GCL. An estimated concentration of toluene was reported in the Metcalf WSW sample, but it was well below 2L GWQS. A
field survey was conducted within 1,500 feet of the site and Request for
Water Supply Well Information Survey letters were sent to all property owners within 1,000 feet. A total of six wells and three surface water bodies were identified. Chatham County Utilities and Water Division indicated that municipal water is not available to all properties in the site vicinity (CATLIN,
2022).
Historical data from reports prepared by other consultants are included in Appendix A.
5.0 REGIONAL AND SITE GEOLOGY AND HYDROGEOLOGY
5.1 SOIL AND BEDROCK As defined in the Geologic Map of North Carolina, published by the North
Carolina Department of Natural Resources and Community Development
(1985), the site lies within the Piedmont physiographic province. The site is underlain by the Carolina Slate Belt, which is a megacrystic, well foliated meta-granitoid that contains hornblende locally (Rhodes et al., 1985).
According to previous well construction records, the site is immediately
underlain by brown/tan clayey silt, broken rock is present between five to
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13 feet below land surface (BLS). Between 13 feet and 15 feet BLS, gravel and rock fragments were encountered (ECS, 2019).
5.2 HYDROGEOLOGY

Groundwater - The 2020 Visual Hydrogeologic Framework (VHF) – North Carolina Hydrogeological Database did not identify sufficient boreholes near the site to draw a cross-section

ECS conducted a slug test at monitoring well MW-2 in 2019 and determined that the hydraulic conductivity was 0.0656 feet per day (ECS, 2019). Surface Water – Three surface water bodies were identified within 1,500 feet
of the site. Two small ponds are located on neighboring properties. Lick
Creek is 930 feet northeast of the site and is identified by the NCDEQ North Carolina Surface Water Classifications GIS viewer as a WS-V;NSW (Water Supply Four; Nutrient Sensitive Waters) class surface water body.
6.0 SITE ASSESSMENT INFORMATION
CATLIN conducted field activities on December 1, 2022 in general accordance with the approved TA and pre-prepared Health and Safety Plan (HASP). Upon arrival at the site, potential hazards were evaluated before beginning field work and are
documented on an electronic Job Hazard Analysis (JHA) form. The JHA form is
included in Appendix C. Photographs from the site visit are included in Appendix B. CATLIN personnel gauged and collected groundwater samples for laboratory analysis of VOCs per SM 6200B from four monitoring wells (MW-1, MW-2, MW-4,
and MW-6) and three water supply wells (WSW-1A, Thomas WSW, and Metcalf
WSW). As discussed in Section 3.0, multiple monitoring wells (MW-3, MW-5, MW-7, MW-9, and MW-10) were dry and could not be sampled. A replacement water supply well (WSW-1A) was sampled in the place of WSW-1.
Water supply well locations are shown on Figure 2 and available details are on
presented on Table 2. Monitoring well locations and site features are shown on Figure 3 and well construction details are on Table 3. 6.1 GAUGING DATA

Historically, depth to water has ranged from 2.39 feet below top of casing (BTOC) (MW-6) to 14.93 feet BTOC (MW-8). Light non-aqueous phase liquid (LNAPL; aka free-phase product) has not historically been measured at the site (ECS, 2020). Groundwater flow direction has been previously illustrated
diverging from the vicinity of monitoring well MW-2 (CATLIN, 2022).

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CATLIN Project No. 220296 9 January 2023
Depth to water was measured using an electronic water interface probe. To prevent cross contamination, the probe and cabling were decontaminated according to the manufacturer’s recommendations between use in each well.
Gauging data were recorded on an electronic groundwater sampling form
using a tablet device. Gauging procedures were performed in general accordance with North Carolina Department of Environmental and Natural Resources (NCDENR), NCDEQ Guidelines, and U.S. Environmental Protection Agency (EPA) Region 4 Operating Procedures.

Depth to water ranged from 9.71 feet BTOC (MW-2) to 15.08 feet BTOC (MW-8). Monitoring wells MW-3, MW-5, MW-7, MW-9 and MW-10 were dry. The average depth to water was approximately three feet deeper than during the previous gauging event (March 2022). Based on groundwater elevations
calculated for this monitoring period, groundwater flow direction appears to
be towards the southwest in the vicinity of the old tank basin. Historical gauging results for events conducted by CATLIN are presented in Table 3 and the field data sheets are provided in Appendix C. Groundwater
elevations and contours are shown on Figure 4.
6.2 SAMPLING DATA Following gauging, the monitoring wells were sampled in general accordance
with NCDEQ Guidelines and U.S. EPA Region 4 Operating Procedures. Prior
to obtaining representative groundwater samples, each monitoring well was purged by removing a minimum of three well volumes using a new, disposable bailer. Groundwater field parameter data were measured at one-minute intervals using the In-Situ Aqua TROLL 600 Multiparameter Sonde
(Aqua TROLL). The Aqua TROLL measured specific conductivity, pH,
oxidation reduction-potential (ORP), dissolved oxygen, and temperature, which were recorded utilizing the VuSitu mobile application (version 1.17.12). Groundwater parameter data were transferred from the VuSitu mobile application to the electronic groundwater sampling forms. Copies of the field
data sheets are available in Appendix C. After a minimum of three well volumes were removed (or the well was bailed dry), groundwater samples were collected from the wells and poured into appropriate laboratory-provided, pre-preserved glassware, labeled, and
placed on ice in an insulated cooler. The water supply wells were sampled in accordance with NCDEQ Guidelines and U.S. EPA Region 4 Operating Procedures. Prior to obtaining representative groundwater samples, each water supply well was allowed to
run for approximately 15 minutes. Field parameter data were measured at one-minute intervals using the Aqua TROLL as noted above. The Aqua TROLL measured specific conductivity, pH, ORP, dissolved oxygen, and
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temperature, which were recorded utilizing the VuSitu mobile application (version 1.17.12). Groundwater parameter data were transferred from the VuSitu mobile application to the electronic groundwater sampling forms.
Copies of the field data sheets are available in Appendix C.
After the water supply well was allowed to run for 15 minutes, a sample was collected either from a spigot located at the water supply well or from the closest spigot to the well directly into appropriate laboratory-provided, pre-
preserved glassware, labeled, and placed on ice in an insulated cooler.
A field blank was collected by pouring water from a new, sealed gallon of distilled water directly into laboratory provided glassware. The glassware was labeled and placed on ice in an insulated cooler. A laboratory-provided trip
blank accompanied the samples for the duration of the site activities.
The groundwater samples, field blank, and laboratory-provided trip blank were submitted to Con-Test Analytical Laboratory (Certification NC 652 and NC-DW 25703) in East Longmeadow, Massachusetts, under proper chain of
custody (COC) protocol and analyzed per SM 6200B (including EDB, MTBE,
and IPE). The laboratory analytical data and COC are included in Appendix D. 6.3 SUMMARY OF GROUNDWATER INFORMATION
Historically, samples from monitoring wells MW-1, MW-2, and MW-5 have contained the highest petroleum constituent concentrations. LNAPL has never been detected at this site. During the previous sampling event conducted by CATLIN (March 2022), the sample from MW-1 contained benzene and naphthalene concentrations above the 2L GWQS. No
petroleum constituents have been detected at concentrations above GCL.
The latest groundwater sampling analytical results are summarized in Table 4 and illustrated on Figures 5 and 6. Historical results for events conducted by CATLIN are included in Table 5. A copy of the complete laboratory report and COC documentation is presented in Appendix D. Historical information
prepared by other consultants is included in Appendix A.
Monitoring Wells
During the December 2022 monitoring event, four monitoring well groundwater samples (MW-1, MW-2, MW-4, and MW-6) were collected and
submitted for analysis via SM 6200B (including EDB, MTBE, and IPE). A low
concentration of acetone (a common laboratory artifact) was reported in the MW-4 sample, but it was below 2L GWQS. Analytical results reported the following constituents at concentrations above their 2L GWQS in samples MW-1 and MW-2:
• MW-1: benzene and 1,2-dichloroethane; and
• MW-2: benzene and naphthalene.
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Water Supply Wells Groundwater samples were obtained from three water supply wells
(WSW-1A, Thomas WSW, and Metcalf WSW). Estimated concentrations (“J”-
values) of acetone (a common laboratory artifact) were detected in the Thomas WSW and Metcalf WSW samples, but were well below 2l GWQS. No other targeted analytes were detected in these samples.
In the sample obtained from WSW-1A, bromoform and
chlorodibromomehtane were reported at concentrations above their respective 2L GWQS. The following VOCs were also detected at concentrations above the method detection limits, but below 2L GWQS: acetone (“J”-value), bromodichloromethane, 2-butanone, chloroform, and
toluene. No targeted analytes were above GCL. These contaminants are
generally a chemical byproduct in chlorinated drinking water and are likely a result of chemical treatments done on the new well. Field Blank and Trip Blank

Estimated concentrations of acetone (a common laboratory artifact) were detected in both samples but were well below the 2L GWQS. No other targeted analytes were detected in the field blank sample. A low concentration of chloroform was reported in the trip blank sample, but it was
below 2L GWQS.
6.4 EVALUATION OF GROUNDWATER, SURFACE WATER, AND LNAPL ASSESSMENT INFORMATION
Extent of Contamination
Several petroleum constituents were detected above their respective 2L GWQS in samples from monitoring wells MW-1 and MW-2. However, no constituents were reported above GCL. A summary of monitoring well
groundwater sample analytical results are illustrated on Figure 5. The
groundwater plume is not delineated to the east and is not vertically delineated. The highest contaminant concentrations have historically been reported in
samples from MW-1 and MW-2. The concentrations in samples obtained
from MW-2 appear to be increasing in relation to the concentrations historically reported, while those in MW-1 have generally decreased. Contaminant concentrations were previously below the reporting limits in WSW-1; however, several contaminants were reported in the sample from
replacement well WSW-1A, including bromoform and chlorodibromomethane
above their respective 2L GWQS. These contaminants are likely a byproduct of chemical treatments done to the new well.
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Cleanup Levels Achieved
Soil – Based on the most recent (2015) soil samples obtained from above the
water table, concentrations of several constituents are present above STGW and/or Residential MSCCs (ECS, 2020). Groundwater – Groundwater contaminant concentrations are above 2L
GWQS, but below GCL at the site.

LNAPL – LNAPL has not been measured at this site. 7.0 CONCLUSIONS AND RECOMMENDATIONS

Conclusions Groundwater monitoring findings for this period are summarized below:
• It was discovered that water supply well WSW-1 had run dry and was
replaced with a deeper well identified as WSW-1A.
• Groundwater laboratory results revealed benzene, 1,2-dichlorobenzene, and/or naphthalene above their respective 2L GWQS in the MW-1 and MW-2
samples.
• No targeted analytes were detected above their laboratory reporting limits in the Thomas WSW and Metcalf WSW water supply well samples.
• Several VOCs were reported in the WSW-1A sample above the laboratory
reporting limits, and bromoform and chlorodibromomethane were above their respective 2L GWQS. These contaminants are likely a byproduct of chemical treatments done to the new well. Previous samples from WSW-1 were below the reporting limits.
• No analytes were reported above GCL in any of the groundwater samples.
• Contaminant concentrations in MW-2 have increased slightly, while those in MW-1 have generally decreased.
• The groundwater plume is horizontally delineated in all directions except to the east of MW-1 and is not vertically delineated.
• Groundwater flow direction was calculated to be towards the southwest for
this monitoring period.

Recommendations CATLIN recommends conducting a semi-annual sampling event in June 2023.
During the sampling event, all monitoring wells and water supply wells WSW-1A, Thomas WSW and Metcalf WSW are recommended to be sampled.
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CATLIN Project No. 220296 13 January 2023
8.0 STATEMENTS AND CERTIFICATIONS
1 Enter the date the monitoring report was due. December 31, 2022
Will this report be submitted after the established due date?
YES
This report was submitted on January 4, 2023, which is within the 10-day grace period of the report submittal date.
2 Was any required information from the above template missing from this report? YES
No cross sections are provided. Adequate subsurface information is not available.
3 If applicable, will any of the proposed attenuation milestones under the schedule approved in the Corrective Action Plan not be met? NA
No CAP has been submitted for this site.
4 Does any known or suspected source zone soil contamination or free product remain outside of the assessed area that could be inhibiting natural attenuation?
NO
All soil contamination detected was within the assessed area.
5 Has there been an unexpected increase in contaminant mass sufficient to suggest a potential new release from a separate onsite or offsite source? NO
6 Certification:
I, Sean J. O’Neil, a Licensed Engineer for CATLIN Engineers and Scientists, do certify that the
information contained in this report is correct and accurate to the best of my knowledge.

CATLIN Engineers and Scientists is licensed to practice engineering in North Carolina. The certification number of the company or corporation is C-0585.
9.0 LIMITATIONS The groundwater samples analyzed as part of this investigation only provide isolated data points and may not represent conditions at every location in the project area. Analyses and conclusions of this report, being based on interpolation between data
points at the project area, may not be completely representative of all site conditions. Conclusions and recommendations of this investigation and report are based on the best available data in an effort to comply with current regulatory requirements.

NCDEQ; 22296_Thomas Residence CATLIN Engineers and Scientists
CATLIN Project No. 220296 14 January 2023
10.0 REFERENCES CATLIN Engineers and Scientists, Monitoring Report, Thomas Residence (Former
Esso Station), NC Highway 87 North, Pittsboro, Chatham County, North
Carolina, NCDEQ Incident No. 22296, Risk Classification: H0234D, May 14, 2021.
CATLIN Engineers and Scientists, Monitoring Report, Thomas Residence (Former Esso Station), 9925 NC Highway 87 North and Pete Thomas Road,
Pittsboro, Chatham County, North Carolina, NCDEQ Incident No. 22296,
Risk Classification: H0234D, April 7, 2022.
ECS Southeast LLP, Groundwater Monitoring Report—Thomas Property—Esso
Station, May 13, 2019.
ECS Southeast LLP, Groundwater Monitoring Report—Thomas Property—Esso
Station, April 8, 2020.
NCDEQ, Cost Recovery Closeout Memo, Online Document Management System (Laserfiche), Incident Number 22296, August 2004.
NCDEQ, UST Section, North Carolina Department of Environment Quality, Division of Waste Management, Guidelines for Site Checks, Tank Closure, and Initial
Response and Abatement for Petroleum and Hazardous Substance UST
Releases, Petroleum Non-UST Releases, January 19, 2021.
NCDEQ, UST Section, North Carolina Department of Environmental Quality, Division of Waste Management, Guidelines for Sampling, UST Section, North Carolina Department of Environment and Natural Resources, December 1,
2013.
NCDEQ, UST Section, North Carolina Department of Environmental Quality, Division of Waste Management, UST Section Assessment Guidelines,
Petroleum and Hazardous Substance UST Releases, Petroleum Non-UST Releases, January 19, 2021.
NCDEQ, UST Section, North Carolina Department of Environmental Quality,
Division of Waste Management, UST Section Corrective Action Guidelines,
Petroleum and Hazardous Substance UST Releases, Petroleum Non-UST
Releases, January 19, 2021.
Powers, Mark (NCDEQ), Groundwater Section Staff Report, Online Document
Management System (Laserfiche), Incident Number 22296, August 10, 2000.
Rhodes, Thomas S., and Conrad, Stephen G., 1985, Geologic Map of North Carolina: Department of Natural Resources and Community Development, Division of Land Resources, and the NC Geological Survey, compiled by Brown, Philip M., et al, and Parker, John M. III, and in association with the
State Geologic Map Advisory Committee, scale 1:500,000.
NCDEQ; 22296_Thomas Residence CATLIN Engineers and Scientists
CATLIN Project No. 220296 15 January 2023
U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – Field Equipment Cleaning and Decontamination at the FEC, Striggow, B., U.S.
EPA Report No. SESDPROC-206-R3, Effective Date December 18, 2015.
U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure –
Groundwater Level and Well Depth Measurement, Striggow, B., U.S. EPA Report No. SESDPROC-105-R3, Effective Date November 3, 2016.
U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure –
Groundwater Sampling, Striggow, B., U.S. EPA Report No. SESDPROC-301-R4, Effective Date April 26, 2017.
U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and
Ecosystem Support Division, Athens Georgia, Operating Procedure – In Situ
Water Quality Monitoring, Chief, Field Services Branch, U.S. EPA Report No. SESDPROC-111-R4, Effective Date March 14, 2018.
U.S. EPA, Region 4, U.S. Environmental Protection Agency, Laboratory Services and Applied Science Division, Athens Georgia, Operating Procedure Potable
Water Supply Sampling, Chief, Applied Science Branch, U.S. EPA Report No. ASBPROC-305-R4, Effective Date June 11, 2019.
Zimmerman, Anne (NCDEQ), Recommendation of Site for State Lead Cleanup, Online Document Management System (Laserfiche), Incident Number 22296, May 6, 2002.

NCDEQ; 22296_Thomas Residence CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

TABLES
Page 1 of 1
TABLE 1
SITE HISTORY - UST SYSTEM AND OTHER RELEASE INFORMATION
Incident Name and No.: Thomas Residence - 22296
UST ID
Number
Name of Owners/
Operators
Dates of
Ownership/
Operation
Last
Contents
Previous
Contents
Capacity
(gal)
Construction
Details
Tank
Dimensions
Installation
Date
Removal
Date
(mm/dd/yy)
1 1940s to 1983 Gasoline Unknown 1,000 Steel Unknown Unknown 02/12/03
2 1940s to 1960s Gasoline Unknown 1,000 Steel Unknown Unknown 02/12/03
3 1940s to 1960s Kerosene Unknown Unknown Unknown Unknown Unknown Unknown
UST
Incident
Number
Material Released
Date Release
Detected
(mm/dd/yy)
22296 Gasoline 03/16/00
Description of Release
Sampling following a complaint of contaminated well water revealed the presecense of MTBE above
2L GWQS in the Thomas water supply well (WSW). An investigation into the source originally
identified an AST on the Thomas property. Correspondence with the Thomas property owner and a
later investigation found the source to be a UST at the former Esso Station.
A.P. Buckner & Rennie
W. Buckner / W.C. Craton
& J.C. Johnson
Information obtained from ECS (2020) and NCDENR (2000).
NCDEQ; 22296_Thomas Residence; T1_Site History
CATLIN Project No. 220296
CATLIN Engineers and Scientists
January 2023
Page 1 of 1
TABLE 2
Incident Name and No.: Thomas Residence - 22296
Well ID Property
Address
Chatham
County
Parcel ID
Owner Name
(Last, First MI)
Owner Mailing
Address Well Use
Distance/
Direction
from
Source Area
(ft.)
Comment
Thomas
WSW
9925 NC 87
North 10797 Thomas,
Sharon L
9925 NC 87 North
Pittsboro, NC 27312
Active
Potable 350 / SSE Per resident,well was installed in
2006 and is 100 feet deep.
WSW-1 Inactive 95 / SSW
Per resident,well is 27 ft.deep.Well
ran dry and was no longer in use as
of November 2022.
WSW-1A Active
Potable 115 / SSE
Installed 11/7/22,180 ft.deep,6 inch
diameter,well casing to 62 ft.
Residents buy bottled water for
drinking.
Metcalf
WSW
9998 NC 87
North 10794 Metcalf, Mark 9998 NC 87 North
Pittsboro, NC 27312
Active
Potable 250 / NE
WSW-2 179 Pete
Thomas Rd 10796 Martin, Walter D &
Marla M
179 Pete Thomas Rd,
Pittsboro, NC 27312
Active
Potable 1,080 / SW
WSW-3 218 Pete
Thomas Rd 10625 Bontemps, Fedrick
& Jennifer
5104 Highcroft Dr, Cary,
NC 27519
Inactive
Potable 1,135 / SW Per surveyor,residence appears
vacant.
WSW-4 131 Pete
Thomas Rd 93153 Hubbard, Matthew T
& Lacey R
131 Pete Thomas Rd,
Pittsboro, NC 27312
Active
Potable 1,160 / SW
Receptor
ID Location Contact
Distance/
Direction from
Source Area (ft.)
Pond 1 9961 NC 87
North
Bradley, John H
& Lana M 380 / NW
Pond 2 9680 NC 87
North
Glosson,
John S 1,040 / SE
Lick Creek North and East
of Site —930 / NE
Information obtained from field survey conducted on March 6, 2022 and Chatham County Land Records Viewer (ArcGIS).
ft. = feet
PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION
Description
Small pond on neighboring property
Class WS-V; NSW surface water body (Water Supply; Nutrient Sensitive Waters)
Small pond on neighboring property
9961 NC 87 North
Pittsboro, NC 27312
Bradley, John H &
Lana M107679961 NC 87
North
NCDEQ; 22296_Thomas Residence; T2_Receptor Info
CATLIN Project No. 220296
CATLIN Engineers and Scientists
January 2023
Page 1 of 2
TABLE 3
Incident Name and No.: Thomas Residence - 22296
Well ID
Date
Installed*
(mm/dd/yy)
Date Water
Level
Measured
(mm/dd/yy)
Well Casing
Depth
(ft. BLS)*
Screened
Interval *
(x to y ft.
BLS)
Bottom of
Well*
(ft. BLS)
Top of
Casing
Elevation
(ft.)
Depth to
Water from
Top of
Casing (ft.)
LNAPL
Thickness**
(ft.)
Ground
Water
Elevation
(ft.)
Comments
04/14/21 5.00 NMT 514.13 Ɨ
03/16/22 9.95 NMT 509.18
12/01/22 11.79 NMT 507.34
04/14/21 5.68 NMT 513.24
03/16/22 4.92 NMT 514.00 Ɨ
12/01/22 9.71 NMT 509.21
04/14/21 5.61 NMT 512.30
03/16/22 8.38 NMT 509.53
12/01/22
04/14/21 5.88 NMT 513.98
03/16/22 11.95 NMT 507.91
12/01/22 13.35 NMT 506.51
04/14/21 6.58 NMT 514.19
03/16/22 12.94 NMT 507.83
12/01/22
04/14/21 4.00 NMT 509.93
03/16/22 5.75 NMT 508.18
12/01/22 12.61 NMT 501.32
04/14/21 4.48 NMT 511.13 Ɨ
03/16/22 6.38 NMT 509.23
12/01/22
Dry
Dry
Dry
MW-4 12/31/09 3.5 3.5 - 13.5 13.5
11/10/15MW-7
MW-6 11/10/15 4
515.61135 - 135
4 - 14 14 513.93
519.86
5.512/31/09 15.55.5 - 15.5
WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA
517.91
518.92
519.13MW-1
20
177 - 17704/20/04
MW-3
MW-2 04/20/04 5 5 - 20
MW-5 520.77
144 - 14412/31/09
NCDEQ; 22296_Thomas Residence; T3_Well Construction & Gauging
CATLIN Project No. 220296
CATLIN Engineers and Scientists
January 2023
Page 2 of 2
TABLE 3
Incident Name and No.: Thomas Residence - 22296
Well ID
Date
Installed*
(mm/dd/yy)
Date Water
Level
Measured
(mm/dd/yy)
Well Casing
Depth
(ft. BLS)*
Screened
Interval *
(x to y ft.
BLS)
Bottom of
Well*
(ft. BLS)
Top of
Casing
Elevation
(ft.)
Depth to
Water from
Top of
Casing (ft.)
LNAPL
Thickness**
(ft.)
Ground
Water
Elevation
(ft.)
Comments
WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA

04/14/21 5.99 NMT 514.25
03/16/22 11.86 NMT 508.38
12/01/22 15.08 NMT 505.16
04/14/21 7.61 NMT 513.81
03/16/22
12/01/22
04/14/21 6.90 NMT 514.42
03/16/22 14.25 NMT 507.07
12/01/22
NMT = No Measureable Thickness
ft. BLS = feet Below Land Surface
Ɨ = Water level was measured above the screened interval.
Dry
Dry
155 - 15503/14/19MW-10
520.24
** If light non-aqueous phase liquid (LNAPL) is present in a well, ground water elevation should be calculated by: [Top of Casing Elevation - Depth to Water] + [LNAPL thickness x
specific gravity of fuel type].
* = Well construction data obtained from ECS (2020).
The TOC elevations were resurveyed by CATLIN on March 16, 2022 using the previously-existing elevation of MW-1 as a benchmark.
Dry
MW-8 03/14/19
521.32
03/14/19MW-9 521.42155 - 155
5 5 - 15 15
NCDEQ; 22296_Thomas Residence; T3_Well Construction & Gauging
CATLIN Project No. 220296
CATLIN Engineers and Scientists
January 2023
Page 1 of 1
TABLE 4
SUMMARY OF GROUNDWATER LABORATORY RESULTS - STANDARD METHOD 6200B
Incident Name and No.: Thomas Residence - 22296
Well
Type
Well/
Sample ID
Date
Collected
MW-1 12/01/22 <2.0 67 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 <0.17 1.4 26 3.5 0.27 J <0.097 <0.24 <0.086 <0.11 6.0 <0.20 <0.11 4.68 BMDL
MW-2 12/01/22 <2.0 9.5 <0.18 <0.38 <1.6 2.7 1.7 0.31 J <0.22 <0.17 <0.31 1.3 100 9.8 1.1 12 28 0.24 J 9.4 44 27 82.2 BMDL
MW-4 12/01/22 54 <0.20 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 <0.17 <0.31 <0.13 <0.21 <0.11 <0.097 <0.24 <0.086 <0.11 <0.22 <0.20 <0.11 <0.69 BMDL
MW-6 12/01/22 17 J <0.20 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 <0.17 <0.31 <0.13 <0.21 <0.11 <0.097 <0.24 <0.086 <0.11 <0.22 <0.20 <0.11 <0.69 BMDL
WSW-1A /
WSW-1*12/01/22 28 J <0.20 3.7 6.7 37 <0.15 <0.11 <0.13 4.8 7.6 <0.31 <0.13 <0.21 <0.11 <0.097 <0.24 <0.086 <0.11 33 <0.20 <0.11 <0.69 BMDL
Thomas
WSW 12/01/22 6.2 J <0.20 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 <0.17 <0.31 <0.13 <0.21 <0.11 <0.097 <0.24 <0.086 <0.11 <0.22 <0.20 <0.11 <0.69 BMDL
Metcalf
WSW 12/01/22 5.6 J <0.20 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 <0.17 <0.31 <0.13 <0.21 <0.11 <0.097 <0.24 <0.086 <0.11 <0.22 <0.20 <0.11 <0.69 BMDL
12/01/22 8.2 J <0.20 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 <0.17 <0.31 <0.13 <0.21 <0.11 <0.097 <0.24 <0.086 <0.11 <0.22 <0.20 <0.11 <0.69 BMDL
12/01/22 5.4 J <0.20 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 1.3 <0.31 <0.13 <0.21 <0.11 <0.097 <0.24 <0.086 <0.11 <0.22 <0.20 <0.11 <0.69 BMDL
All results in micrograms per liter (µg/L).
BMDL = Below Method Detection Limit
Bold results indicate concentrations above 2L GWQS.
< = Less than method detection limit
GCL = Gross Contaminant Level
2L GWQS = NCAC T15A:02L Groundwater Quality Standards
J = Detected but below the Reporting Limit (lowest calibration standard); result is an estimated concentration (CLP J-Flag).
NE = Not Established
* = The sample labeled WSW-1 was collected from replacement well WSW-1A.Naphthalene Contaminant of
Concern
AcetoneBenzenen-Butylbenzenesec-Butylbenzenetert-ButylbenzeneDiisopropyl Ether (DIPE)2-Butanone (MEK)EthylbenzeneIsopropylbenzene (Cumene)p-Isopropyltoluene (p-Cymene)400
0.4
70,000
70
400
0.4MonitoringWater SupplyField Blank / FB
Trip Blank / TB
GCL (µg/L)
2L GWQS (µg/L)
6,000,000
6,000
5,000
1
5,900
70
4,000,000
4,000
NE
NE
4,000
4
50,000
500
Varies
VariesToluene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene260,000
600
28,500
400
24,100
400 Total XylenesAll Other SM 6200B Analytes70,000
70Bromodichloromethane Bromoform ChlorodibromomethaneChloroform 1,2-Dichloroethane Styrene 6,000
6
26,100
70n-Propylbenzene11,700
25
8,800
70
14,750
70
70,000
70
80,000
600
30,500
70
NCDEQ; 22296_Thomas Residence; T4_GW Results
CATLIN Project No. 220296
CATLIN Engineers and Scientists
January 2023
Page 1 of 1
TABLE 5
SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS - STANDARD METHOD 6200B
Incident Name and No.: Thomas Residence - 22296
Well
Type Well ID
Date
Collected
(mm/dd/yy)
04/14/21 11 J 230 BMDL BMDL BMDL 6.6 2.1 0.72 J BMDL BMDL BMDL 26 230 9.9 J 27 2.6 42 50 BMDL 62 260 100 360 BMDL
03/16/22 <8.1 81 BMDL BMDL 78 1.2 J 1.0 J <0.52 BMDL BMDL BMDL 15 57 <1.1 11 1.4 J 16 17 BMDL 8.2 38 15 54.9 BMDL
12/01/22 <2.0 67 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 <0.17 1.4 26 3.5 <1.1 0.27 J <0.097 <0.24 <0.086 <0.11 6.0 <0.20 <0.11 4.68 BMDL
04/14/21 7.0 J 8.0 BMDL BMDL BMDL 0.21 J 0.11 J <0.090 BMDL BMDL BMDL 2.0 8.0 <1.4 0.80 <0.090 0.77 1.9 BMDL 1.6 2.9 1.8 4.38 BMDL
03/16/22 <2.0 0.80 BMDL BMDL <1.6 <0.15 0.11 J <0.13 BMDL BMDL BMDL 0.29 J 5.2 <1.1 0.54 <0.097 0.74 1.1 BMDL <0.22 1.8 0.83 1.96 J BMDL
12/01/22 <2.0 9.5 <0.18 <0.38 <1.6 2.7 1.7 0.31 J <0.22 <0.17 <0.31 1.3 100 <1.1 9.8 1.1 12 28 0.24 J 9.4 44 27 82.2 BMDL
04/14/21 2.5 J <0.13 BMDL BMDL BMDL <0.14 <0.10 <0.090 BMDL BMDL BMDL 2.6 <0.090 <1.4 <0.10 <0.090 <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL
03/16/22 <2.0 <0.20 BMDL BMDL <1.6 <0.15 <0.11 <0.13 BMDL BMDL BMDL 1.1 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 BMDL <0.22 <0.20 <0.11 <0.69 BMDL
04/14/21 3.1 J <0.13 BMDL BMDL BMDL <0.14 <0.10 <0.090 BMDL BMDL BMDL 1.0 <0.090 <1.4 <0.10 <0.090 <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL
03/16/22 <2.0 <0.20 BMDL BMDL <1.6 <0.15 <0.11 <0.13 BMDL BMDL BMDL 0.53 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 BMDL <0.22 <0.20 <0.11 <0.69 BMDL
12/01/22 54 <0.20 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 <0.17 <0.31 <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 <0.11 <0.22 <0.20 <0.11 <0.69 BMDL
04/14/21 5.7 J <0.13 BMDL BMDL BMDL <0.14 <0.10 <0.090 BMDL BMDL BMDL <0.15 <0.090 <1.4 <0.10 <0.090 <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL
03/16/22 9.6 J 0.29 J BMDL BMDL <1.6 <0.15 0.15 J 0.21 J BMDL BMDL BMDL 0.38 J <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 BMDL <0.22 <0.20 <0.11 <0.69 BMDL
04/14/21 4.0 J <0.13 BMDL BMDL BMDL <0.14 <0.10 <0.090 BMDL BMDL BMDL <0.15 <0.090 <1.4 <0.10 <0.090 <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL
03/16/22 3.9 J <0.20 BMDL BMDL <1.6 <0.15 <0.11 <0.13 BMDL BMDL BMDL <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 BMDL <0.22 <0.20 <0.11 <0.69 BMDL
12/01/22 17 J <0.20 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 <0.17 <0.31 <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 <0.11 <0.22 <0.20 <0.11 <0.69 BMDL
04/14/21 2.9 J <0.13 BMDL BMDL BMDL <0.14 <0.10 <0.090 BMDL BMDL BMDL <0.15 <0.090 <1.4 <0.10 <0.090 <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL
03/16/22 <2.0 <0.20 BMDL BMDL <1.6 <0.15 <0.11 <0.13 BMDL BMDL BMDL <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 BMDL <0.22 <0.20 <0.11 <0.69 BMDL
04/14/21 2.9 J <0.13 BMDL BMDL BMDL <0.14 <0.10 <0.090 BMDL BMDL BMDL <0.15 <0.090 <1.4 <0.10 <0.090 <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL
03/16/22 <2.0 <0.20 BMDL BMDL <1.6 <0.15 <0.11 <0.13 BMDL BMDL BMDL <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 BMDL <0.22 <0.20 <0.11 <0.69 BMDL
MW-9 04/14/21 5.0 J <0.13 BMDL BMDL BMDL <0.14 <0.10 <0.090 BMDL BMDL BMDL <0.15 <0.090 <1.4 <0.10 <0.090 <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL
04/14/21 2.7 J <0.13 BMDL BMDL BMDL <0.14 <0.10 <0.090 BMDL BMDL BMDL <0.15 <0.090 <1.4 <0.10 <0.090 <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL
03/16/22 <2.0 <0.20 BMDL BMDL <1.6 <0.15 <0.11 <0.13 BMDL BMDL BMDL <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 BMDL <0.22 <0.20 <0.11 <0.69 BMDL
04/14/21 2.7 J <0.13 BMDL BMDL BMDL <0.14 <0.10 <0.090 BMDL BMDL BMDL <0.15 <0.090 <1.4 <0.10 <0.090 <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL
03/16/22 <2.0 <0.20 BMDL BMDL <1.6 <0.15 <0.11 <0.13 BMDL BMDL BMDL <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 BMDL <0.22 <0.20 <0.11 <0.69 BMDL
WSW-1A 12/01/22 28 J <0.20 3.7 6.7 37 <0.15 <0.11 <0.13 4.8 7.6 <0.31 <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 <0.11 33 <0.20 <0.11 <0.69 BMDL
04/14/21 3.3 J <0.13 BMDL BMDL BMDL <0.14 <0.10 <0.090 BMDL BMDL BMDL <0.15 <0.090 <1.4 <0.10 <0.090 <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL
03/16/22 <2.0 <0.20 BMDL BMDL <1.6 <0.15 <0.11 <0.13 BMDL BMDL BMDL <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 BMDL <0.22 <0.20 <0.11 <0.69 BMDL
12/01/22 6.2 J <0.20 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 <0.17 <0.31 <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 <0.11 <0.22 <0.20 <0.11 <0.69 BMDL
04/14/21 2.4 J <0.13 BMDL BMDL BMDL <0.14 <0.10 <0.090 BMDL BMDL BMDL <0.15 <0.090 <1.4 <0.10 <0.090 <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL
03/16/22 <2.0 <0.20 BMDL BMDL <1.6 <0.15 <0.11 <0.13 BMDL BMDL BMDL <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 BMDL 1.9 <0.20 <0.11 <0.69 BMDL
12/01/22 5.6 J <0.20 <0.18 <0.38 <1.6 <0.15 <0.11 <0.13 <0.22 <0.17 <0.31 <0.13 <0.21 <1.1 <0.11 <0.097 <0.24 <0.086 <0.11 <0.22 <0.20 <0.11 <0.69 BMDL
All results in micrograms per liter (µg/L).GCL = Gross Contaminant Level
BMDL = Below Method Detection Limit 2L GWQS = NCAC T15A:02L Groundwater Quality Standards
Bold results indicate concentrations above 2L GWQS.< = Less than method detection limit
J = Detected but below the Reporting Limit (lowest calibration standard); result is an estimated
concentration (CLP J-Flag).
NE = Not Established
70,000
70
260,000
600
28,500
400
24,100
400
50,000
500
Varies
Varies
26,100
70
80,000
600
40,000
40
30,500
70
11,700
25
6,000
6
70,000
70
6,000,000
6,000
5,000
1
NE
NE
4,000
4
4,000,000
4,000
5,900
70
8,800
70
14,750
70
400
0.4
70,000
70
400
0.4
MW-10
Water SupplyWSW-1
Thomas
WSW
Metcalf
WSW
GCL (µg/L)
2L GWQS (µg/L) All Other SM 6200B AnalytesMonitoringMW-1
MW-2
MW-3
MW-4
MW-5
MW-6
MW-7
MW-8 n-PropylbenzeneStyrene Toluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal XylenesDiisopropyl Ether (DIPE)Ethylbenzene2-Hexanone (MBK)Isopropylbenzene (Cumene)p-Isopropyltoluene (p-Cymene)Naphthalene 1,2-Dichloroethane Contaminant of
Concern
AcetoneBenzeneBromodichloro-methane Bromoform 2-Butanone (MEK)n-Butylbenzenesec-Butylbenzenetert-ButylbenzeneChlorodibromo-methaneChloroform NCDEQ; 22296_Thomas Residence; T5_Historical GW Results
CATLIN Project No. 220296
CATLIN Engineers and Scientists
January 2023

NCDEQ; 22296_Thomas Residence CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

FIGURES
FIGUREPROJECTTITLE
1THOMAS RESIDENCE9925 HWY 87 NPITTSBORO, NC SITE VICINITY MAP
SITE LOCATION
H
W
Y 87
PETE THOMAS RDCopyright:© 2013 National Geographic Society, i-cubed
2,000 0 2,000 4,0001,000
Feet
³
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY22296220296JAN 2023 AS SHOWN KMC/BJA
FIGUREPROJECTTITLE
2THOMAS RESIDENCE9925 HWY 87 NPITTSBORO, NC POTENTIAL RECEPTOR MAP
!(P
!(P
!(P
!(P
!(P
!(P
!(P
SITE LOCATION
H
W
Y 87PETE THOMAS RD1 ,5 0 0 FEET RADIUS
METCALF WSW
WSW-1
THOMAS WSW500FEETRADIUS
WSW-4
WSW-2WSW-3
POND 1
POND 2
LICKCREEK
WSW-1A
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
500 0 500 1,000250
Feet
³
NOTE: Well locations were obtained during field reconnaissance conducted on March 16, 2022.
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY22296220296JAN 2023 AS SHOWN KMC/BJA
LEGEND
Active Potable
Water Supply Well!(P
Inactive PotableWater Supply Well!(P
FIGUREPROJECTTITLE
3THOMAS RESIDENCE9925 HWY 87 NPITTSBORO, NC SITE MAP
!(P
!>!>
!>
!>
!>
!>
!>!>
!>
!>
!(PHWY 87FORMER DISPENSER ISLANDFORMER USTS
MW-7
MW-3MW-6
MW-1
MW-4
MW-2
MW-8
MW-9 MW-10
MW-5
WSW-1
WSW-1A
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
30 0 30 6015
Feet
³
NOTE: Well and tank locations were obtained from previous reportsprepared by other consultants and are approximate.
Parcel Boundary
Approximate Location of Former UST System
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY22296220296JAN 2023 AS SHOWN KMC/BJA
LEGEND
Monitoring Well(Type II)!>
Active PotableWater Supply Well!(P
Inactive Potable
Water Supply Well!(P
FIGUREPROJECTTITLE
4THOMAS RESIDENCE9925 HWY 87 NPITTSBORO, NC
GROUNDWATER ELEVATION –DECEMBER 1, 2022
!(P
!>!>
!>
!>
!>
!>
!>!>
!>
!>
!(P
<<HWY 87MW-7
MW-3MW-6(501.32)
MW-1(507.34)
MW-4(506.51)
MW-2(509.21)
MW-8(505.16)
MW-9 MW-10
MW-5
WSW-1
WSW-1A
507.00506.00505.00508.00504.00503.00502.00509.00
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
30 0 30 6015
Feet
³
NOTE: Well and tank locations were obtained from previous reportsprepared by other consultants and are approximate.
Parcel Boundary
Approximate Location of Former UST System
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY22296220296JAN 2023 AS SHOWN KMC/BJA
LEGEND
Monitoring Well(Type II)!>
Active PotableWater Supply Well!(P
Inactive PotableWater Supply Well!(P
Gauged Monitoring Well (Type II)!>
Groundwater FlowDirection
Groundwater Contour<Groundwater Elevation (Feet)(##)
FIGUREPROJECTTITLE
5THOMAS RESIDENCE9925 HWY 87 NPITTSBORO, NC
MONITORING WELLGROUNDWATER SAMPLEANALYTICAL RESULTS –DECEMBER 1, 2022
!(P
!>!>
!>
!>
!>
!>
!>!>
!>
!>
!(P HWY
8
7 MW-7
MW-3
MW-6
MW-1
MW-4
MW-2
MW-8
MW-9 MW-10
MW-5
WSW-1
WSW-1A
ESTIMATED HORIZONTAL EXTENT OF 2L GWQS EXCEEDANCES
?
?
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
30 0 30 6015
Feet
³
NOTE: Well and tank locations were obtained from previous reportsprepared by other consultants and are approximate.
Parcel Boundary
Approximate Location of Former UST System
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY22296220296JAN 2023 AS SHOWN KMC/BJA
LEGEND
Monitoring Well(Type II)!>
Inactive PotableWater Supply Well!(P
Sampled Monitoring Well (Type II)!>
Incident Name and No.: Thomas Residence - 22296
Well/SampleID
DateCollected
MW-1 12/01/22 67 1.4 <0.24 B2LMW-2 12/01/22 9.5 <0.31 12 B2LMW-4 12/01/22 <0.20 <0.31 <0.24 B2LMW-6 12/01/22 <0.20 <0.31 <0.24 B2L
All results in micrograms per liter (µg/L).B2L = Below 2L GWQSBold results are above 2L GWQS.Refer to Table 4 for all other notes.
SUMMARY OF GROUNDWATER LABORATORY RESULTS - STANDARD METHOD 6200B
Naphthalene 6,0006 VariesVariesGCL (µg/L)2L GWQS (µg/L) 5,0001 All Other SM6200B AnalytesContaminant of Concern
Benzene1,2-Dichloroethane 4000.4
FIGUREPROJECTTITLE
6THOMAS RESIDENCE9925 HWY 87 NPITTSBORO, NC
WATER SUPPLY WELLGROUNDWATER SAMPLEANALYTICAL RESULTS –DECEMBER 1, 2022
!(P
!(P
!(P
!(P HWY
8
7
WSW-1
WSW-1A
METCALF WSW
THOMAS WSWPETE THOMAS RDSource: Esri, Maxar, Earthstar Geographics, and the GIS User Community
80 0 80 16040
Feet
³
NOTE: Well and tank locations were obtained from previous reportsprepared by other consultants and are approximate.
Parcel Boundary
Approximate Location of Former UST System
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY22296220296JAN 2023 AS SHOWN KMC/BJA
LEGEND
Sampled PotableWater Supply Well!(P
Inactive PotableWater Supply Well!(P
Incident Name and No.: Thomas Residence - 22296
Well/SampleID
DateCollected
WSW-1A 12/01/22 28 J 3.7 6.7 37 4.8 7.6 33 BMDLThomas WSW 12/01/22 6.2 J <0.18 <0.38 <1.6 <0.22 <0.17 <0.22 BMDLMetcalf WSW 12/01/22 5.6 J <0.18 <0.38 <1.6 <0.22 <0.17 <0.22 BMDL
All results in micrograms per liter (µg/L).Bold results are above 2L GWQS.BMDL = Below Method Detection Limit Refer to Table 4 for all other notes.
4000.4 VariesVariesChloroform 70,00070 Toluene260,000600
SUMMARY OF GROUNDWATER LABORATORY RESULTS - STANDARD METHOD 6200B
Bromoform 4,0004Bromodichloromethane NENE 2-Butanone (MEK)4,000,0004,000
Contaminant of Concern
AcetoneChlorodibromomethaneAll Other SM6200B AnalytesGCL (µg/L)2L GWQS (µg/L) 6,000,0006,000

NCDEQ; 22296_Thomas Residence CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

APPENDICES

NCDEQ; 22296_Thomas Residence CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

APPENDIX A HISTORICAL DATA

Soil Sample ID Date Collected Sample Depth (ft bgs)TPH-DROTPH-GROBenzenen-Butylbenzenesec-Butylbenzene1,2-DichloroethaneDiisopropyl etherEthylbenzeneIsopropylbenzenep-IsopropyltolueneNaphthalenen-PropylbenzeneStyreneToluene1,2,4-Trimethylbenznene1,3,5-TrimethylbenzeneTotal Xylenes2-MethylnaphthaleneNaphthaleneC5-C8 AliphaticsC9-C18 AliphaticsC9-C22 AromaticsFS-1 2/12/2003 3-4 17 150 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NSFS-2 2/12/2003 9.5 15 220 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NSSW-1 2/12/2003 9.5 51 730 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
SW-2 2/12/2003 6.0 BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
SW-3 2/12/2003 6.0 17 130 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NSSW-4 2/12/2003 6.0 BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NSSW-5 2/12/2003 6.0 17 BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
SW-6 2/12/2003 6.0 BRL 13 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
SB-1 12/30/2009 3-4 NS BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRLSB-2 12/30/2009 3-4 NS BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NSSB-3 12/30/2009 3-4 NS BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
SB-4 1/4/2010 5-6 NS BRL 0.0078 BRL BRL BRL 0.018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
SB-5 1/4/2010 5-6 NS BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
SB-6 1/4/2010 5-6 NS BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NSSB-1 11/10/2015 9-10 NS NS BRL 352 BRL BRL BRL BRL BRL 338 757 484 BRL BRL 3,610 1,460 502 BRL BRL 27.8 25.1 17.6SB-2 11/10/2015 8-9 NS NS 58.8 BRL BRL 5.0 24.6 BRL BRL BRL 24.0 BRL BRL BRL BRL BRL 17.8 BRL BRL BRL BRL BRL
SB-3 11/10/2015 9-10 NS NS BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
SB-4 11/10/2015 8-9 NS NS 20.2 BRL BRL BRL 4.3 21.5 BRL BRL 8.6 BRL BRL BRL 25.9 7.8 104 BRL BRL BRL BRL BRLSB-5 11/10/2015 3-4 NS NS 14.3 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 9.0 BRL 33.3 BRL BRL BRL BRL BRLSB-6 11/10/2015 3-4 NS NS BRL BRL BRL BRL BRL 12.5 BRL BRL 4.8 7.0 BRL 11.9 57.2 20.8 88.9 BRL BRL BRL BRL BRL
SB-7 11/10/2015 4-5 NS NS BRL 1,780 790 BRL BRL 19,200 2,750 1,870 3,150 7,780 1,000 31,600 52,600 19,300 151,000 703 1,410 507 713.9 371.2
SB-8 11/10/2015 5-6 NS NS BRL BRL BRL BRL BRL 21.7 BRL BRL BRL BRL BRL 7.3 40.3 7.9 78.9 BRL BRL 7.8 4.5 BRLSB-9 11/10/2015 7-8 NS NS 13.3 34.7 10.7 BRL BRL 581 34.8 29.5 91.5 113 8.0 700 3,110 1,110 4,100 BRL BRL 17.1 9.9 5.51010
-- --0.0056 4.3 3.3 0.0019 0.37 4.9 1.7 0.12 0.16 1.7 1.5 4.3 8.5 8.3 4.6 3.6 0.16 68 540 31 -- --18 626 626 7 156 1,560 1,564 100 313 626 3,128 1,200 782 782 3,129 63 313 939 1,500 469
NOTES:NCDEQ = North Carolina Department of Environmental QualityMSCC = Maximum Soil Contaminant Concentration LevelsMADEP = Massachusetts Department of Environmental Protection
VPH = Volatile Petroleum Hydrocarbons
EPH = Extractable Petroleum Hydrocarbonsmg/kg = milligrams per kilogramft bgs = feet below the ground surfaceBRL = Below Laboratory Reporting LimitBold = Detected above the Soil-to-Water MSCCs or UST Section's Action LevelUnderlined = Detected above the Soil-to-Water MSCC and Residential MSCCNA = Not ApplicableNS = Not Sampled
Table 2Summary of Historical Soil Sampling Analytical Results
Thomas Property - Esso Station
NC Highway 87 and Pete Thomas Road
Pittsboro, Chatham County, North Carolina
EPA Method 8270EPA Method 8260
NCDEQ Incident No. 22296
ECS Project No. 49:6217-D
MADEP VPH/EPH
Residential MSCCs (mg/kg)
--Soil-to-Water MSCCs (mg/kg)UST Section's Action Level (mg/kg)
EPA Method 8015Analytical Method Contaminant of Concern (mg/kg)
APPENDIX A HISTORICAL DATA (ECS, 2020)
NCDEQ; 22296_Thomas Residence; AppA
CATLIN Project No. 220296
Page 1 of 4 CATLIN Engineers & Scientists
January 2023
Monitoring
Well ID
Date
Measured
Depth to Groundwater
(ft. btoc)
Date
Installed
Total Well Depth
(ft. btoc)
Screen Interval
(ft. btoc)
TOC
Elevation*
Groundwater
Elevation (ft)
3/14/2019 3.85 515.28
10/8/2019 13.21 505.923/19/2020 7.75 511.383/14/2019 2.68 516.00
10/8/2019 14.61 504.073/19/2020 6.92 511.76
3/14/2019 4.45 513.4010/8/2019 13.40 504.45
3/19/2020 5.76 512.093/14/2019 5.19 514.54
10/8/2019 12.77 506.963/19/2020 9.03 510.703/14/2019 5.83 514.73
10/8/2019 14.35 506.213/19/2020 9.65 510.91
3/14/2019 2.39 511.3910/8/2019 DRY NA
3/19/2020 4.48 509.303/14/2019 2.68 512.75
10/8/2019 DRY NA
3/19/2020 5.73 509.703/14/2019 4.46 515.53
10/8/2019 14.93 505.063/19/2020 8.71 511.28
3/14/2019 6.03 515.1310/8/2019 DRY NA
3/19/2020 10.40 510.763/14/2019 5.66 515.4310/8/2019 DRY NA
3/19/2020 10.04 511.05
NOTES:ft. btoc = Feet Below Top of Casing
Table 4
Monitoring Well Construction and Groundwater Elevation Details
Thomas Property - Esso Station
NC Highway 87 and Pete Thomas Road
Pittsboro, Chatham County, North Carolina
NCDEQ Incident No. 22296
ECS Project No. 49:6217-D
MW-1 4/20/2004 17 7-17 519.13
MW-2 4/20/2004 20 5-20 518.68
MW-3 12/31/2009 14 4-14 517.85
MW-4 12/31/2009 13.5 3.5-13.5 519.73
MW-5 12/31/2009 15.5 5.5-15.5 520.56
MW-6 11/10/2015 14 4-14 513.78
MW-7 11/10/2015 13 5-13 515.43
MW-8 3/14/2019 15 5-15 519.99
MW-9 3/14/2019 15 5-15 521.16
* = Survey conducted by Bateman Civil Survey on November 12, 2015. The site veritcal datum is based on
NAV88' and the horizontal datum is based on NAD83'.
MW-10 3/14/2019 15 5-15 521.09
TOC = Top of Casing
APPENDIX A HISTORICAL DATA (ECS, 2020)
NCDEQ; 22296_Thomas Residence; AppA
CATLIN Project No. 220296
Page 2 of 4 CATLIN Engineers & Scientists
January 2023
Sample ID Sample Date
BenzeneTolueneEthylbenzeneTotal XylenesAcetone2-Butanone (MEK)n-Butylbenzenesec-Butylbenzenetert-Butylbenzene1,2-Dichloroethane Diisopropyl ether (DIPE)Isopropylbenzenep-IsopropyltolueneNaphthalenen-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneMW-1 390 120 270 480 BRL 12 J 8.6 2.9 1.2 J 7.0 39 25 6.4 42 45 320 96
MW-2 19 62 35 238 5.0 J BRL 1.3 0.17 J BRL BRL 2.5 2.6 1.3 9.1 4.3 92 24
MW-3 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
MW-4 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.75 BRL BRL BRL BRL BRL BRL
MW-5 23 5.3 16 24.1 11 J 6.2 2.3 1.0 0.42 J BRL 3.5 6.9 2.4 11 7.2 19 6.1
MW-6 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
MW-7 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
MW-8 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
MW-9 BRL BRL BRL BRL 4.6 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
MW-10 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
Thomas WSW BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
Bradley WSW-1 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
Metcalf WSW BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
Field Blank BRL BRL BRL BRL 4.9 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
1 600 600 500 6,000 4,000 70 70 70 0.4 70 70 25 6 70 400 400
5,000 260,000 84,500 85,500 6,000,000 4,000,000 6,900 8,500 15,000 400 70,000 25,000 11,700 6,000 30,000 28,500 25,000
NOTES:
NC2LGWQS = North Carolina 2L Groundwater Quality Standard as of April 1, 2013
GCL = NCDEQ's Gross Contamination Levels for Groundwater as of April 16, 2012(µg/L) = Micrograms per Liter
BRL = Below Reporting Limit
Bold = Detected above the NC2LGWQSJ = Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration
3/19/2020
NC2LGWQS (µg/L)
GCL (µg/L)
ECS Project No. 49:6217-D
Standard Method 6200B (µg/L)
Contaminant of Concern Analytical Method
Table 5
Summary of Current Groundwater Analytical Results
Thomas Property - Esso Station
NC Highway 87 and Pete Thomas Road
Pittsboro, Chatham County, North Carolina
NCDEQ Incident No. 22296
APPENDIX A HISTORICAL DATA (ECS, 2020)
NCDEQ; 22296_Thomas Residence; AppA
CATLIN Project No. 220296
Page 3 of 4 CATLIN Engineers & Scientists
January 2023
Sample ID Sample Date
BenzeneTolueneEthylbenzeneTotal XylenesAcetoneBromodichloromethane2- Butanone (MEK)n- Butylbenzenesec-Butylbenzenetert-ButylbenzeneChloroform1,2-Dibromoethane (EDB)1,4-Dichlorobenzene1,2-DichloroethaneDiisopropyl Ether (DIPE)Isopropylbenzenep-IsopropyltolueneNaphthalenen- PropylbenzeneStyreneTetrachloroethylene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene5/12/2004 820 860 710 1,670 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 78 64 BRL 130 140 BRL BRL 950 320
1/4/2010 827 340 564 1,017 BRL BRL BRL 45.4 BRL BRL BRL BRL BRL 16.9 70.2 BRL BRL 131 102 16.5 BRL 656 259
11/25/2014 209 12.6 31.1 42.6 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 3.0 BRL BRL 4.3 BRL BRL 14.6 10.2
11/10/2015 147 36.7 90.1 168.3 BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.9 13.5 6.9 BRL 13.8 13.5 1.6 BRL 81.3 36.8
3/14/2018 360 14 140 116 BRL BRL BRL 6.8 1.8 J BRL BRL BRL BRL BRL 32 16 2.4 J 24 29 BRL BRL 66 46
10/23/2018 450 110 350 610 BRL BRL 22 J 12 3.6 1.2 J 3.8 BRL BRL BRL 50 38 5.2 74 75 BRL BRL 460 180
3/14/2019 200 51 190 393 BRL BRL BRL 2.8 1.7 0.70 0.41 J 0.27 J BRL 2.6 22 21 2.5 30 44 3.9 BRL 230 110
10/8/2019 2.7 0.24 J 1.0 1.01 J 160 BRL 28 BRL BRL BRL BRL BRL BRL BRL 1.7 0.22 J BRL BRL 0.25 J BRL BRL 0.18 J BRL
3/19/2020 390 120 270.0 480 BRL BRL 12 J 8.6 2.9 1.2 J BRL BRL BRL 7.0 39 25 6.4 42 45 BRL BRL 320 96
5/12/2004 690 2,100 860 3,000 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 130 65 BRL 200 190 BRL BRL 1,300 360
1/4/2010 16.2 22.9 13.7 29.20 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 4.1 BRL BRL BRL 2.7 BRL BRL 14.7 6.2
11/25/2014 23.1 19.2 55.0 41.60 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 3.6 3.7 BRL BRL 7.5 BRL BRL 35.0 BRL
11/10/2015 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2018 4 7.9 26 49 17 J BRL BRL 0.93 0.25 BRL BRL BRL BRL BRL 0.68 1.4 J 0.17 J 3.6 3.6 BRL BRL 21 8
10/23/2018 4.7 7.0 14 29 BRL BRL BRL 0.36 J BRL BRL BRL BRL BRL BRL 1.1 0.92 BRL 1.6 1.8 BRL BRL 12 2.8
3/14/2019 22 1.6 6.8 3.24 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 5.1 0.53 BRL 2.5 1.2 BRL BRL 4.1 1.1
10/8/2019 15 9.0 43 15.8 BRL BRL BRL 1.1 1.3 0.29 J BRL BRL BRL BRL 1.8 6.6 BRL BRL 10 BRL BRL 4.1 0.41 J
3/19/2020 19 62 35 238 5.0 J BRL BRL 1.3 0.17 J BRL BRL BRL BRL BRL 2.5 2.6 1.3 9.1 4.3 BRL BRL 92 24
1/4/2010 BRL BRL BRL BRL BRL 0.86 BRL BRL BRL BRL 4.2 BRL BRL 0.84 3.2 BRL BRL BRL BRL BRL BRL BRL BRL
11/25/2014 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 2.3 BRL BRL BRL BRL BRL BRL BRL BRL
11/10/2015 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.54 BRL 0.97 BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.4 BRL BRL BRL BRL BRL BRL BRL BRL
10/23/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.3 BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2019 BRL BRL BRL BRL 5.5 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/8/2019 BRL BRL BRL BRL 12 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/19/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
1/4/2010 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.86 9.0 BRL BRL BRL BRL BRL 0.51 BRL BRL
11/25/2014 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
11/10/2015 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.65 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.95 BRL BRL BRL BRL BRL BRL BRL BRL
10/23/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 6.5 BRL BRL BRL BRL BRL BRL BRL BRL
10/8/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/19/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.75 BRL BRL BRL BRL BRL BRL BRL BRL
1/4/2010 300 310 481 930 BRL BRL BRL 34.7 BRL BRL BRL BRL BRL 5.1 22.1 BRL BRL 36.5 88.5 8.1 BRL 627 242
11/25/2014 1.60 BRL 1.40 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.63 BRL BRL BRL BRL BRL BRL 1.60 BRL
11/10/2015 168 67.2 214 444.1 BRL BRL BRL BRL BRL BRL BRL BRL 0.50 1.3 13.8 29.0 BRL 65.5 58.1 0.95 BRL 313 135
3/14/2018 100 22 170 209 BRL BRL BRL 8.6 2.6 BRL BRL BRL BRL BRL 15 20 9.6 37 42 BRL BRL 210 80
10/23/2018 83 29 BRL 244 57 J BRL 43 14 3.3 0.88 J BRL BRL BRL BRL 8.1 28 18 51 56 BRL BRL 220 84
3/14/2019 BRL BRL BRL BRL 5.4 J BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.4 BRL BRL BRL BRL BRL BRL BRL BRL
10/8/2019 0.18 J BRL BRL BRL 76 BRL 10 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/19/2020 23 5.3 16 24.1 11 J BRL 6.2 2.3 1.0 0.42 J BRL BRL BRL BRL 3.5 6.9 2.4 11 7.2 BRL BRL 19 6.1
11/12/2015 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/23/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/8/2019
3/19/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
11/12/2015 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/23/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/8/2019
3/19/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/18/2019 BRL BRL BRL BRL 8.4 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/8/2019 BRL BRL BRL BRL 5.2 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/19/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/18/2019 0.56 3.6 0.83 5.3 18 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.84 0.26 J
10/8/2019
3/19/2020 BRL BRL BRL BRL 4.6 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/18/2019 BRL BRL BRL BRL 8.4 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/8/2019
3/19/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
4/20/2004 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
12/30/2009 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
11/25/2014 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
11/10/2015 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/23/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/8/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/19/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
4/20/2004 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
12/30/2009 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 4.1 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
11/25/2014 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
11/10/2015 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/23/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/8/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/19/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
4/20/2004 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
12/30/2009 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
11/25/2014 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
11/10/2015 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/23/2018 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/14/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
10/8/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
3/19/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
1 600 600 500 6,000 0.6 4,000 70 70 70 70 0.02 6 0.4 70 70 25 6 70 70 0.7 400 400
5,000 260,000 84,500 85,500 6,000,000 NE 4,000,000 6,900 8,500 15,000 70,000 50 6,000 400 70,000 25,000 11,700 6,000 30,000 70,000 700 28,500 25,000
NOTES:NC2LGWQS = North Carolina 2L Groundwater Quality Standard as of April 1, 2013GCL = NCDEQ's Gross Contamination Levels for Groundwater as of April 16, 2012(µg/L) = Micrograms per LiterBRL = Below Reporting LimitBold = Detected above the NC2LGWQSJ = Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration
DRY
GCL (µg/L)
NC2LGWQS (µg/L)
Bradley WSW-1
Metcalf WSW
Table 6Summary of Historical Groundwater Analytical Results
Thomas WSW
Thomas Property - Esso Station
NC Highway 87 and Pete Thomas Road
Pittsboro, Chatham County, North Carolina
NCDEQ Incident No. 22296
DRY
DRY
DRY
MW-10
MW-8
MW-9
MW-7
MW-6
Analytical Method
MW-5
MW-4
ECS Project No. 49:6217-D
MW-3
MW- 2
MW-1
Standard Method 6200B (µg/L)Contaminant of Concern
APPENDIX A HISTORICAL DATA (ECS, 2020)
NCDEQ; 22296_Thomas Residence; AppA
CATLIN Project No. 220296
Page 4 of 4 CATLIN Engineers & Scientists
January 2023

NCDEQ; 22296_Thomas Residence CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

APPENDIX B SITE PHOTOGRAPHS

APPENDIX B SITE PHOTOGRAPHS – DECEMBER 1, 2022
NCDEQ; 22296_Thomas Residence_App. B CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

View of site, facing southwest.

View of MW-1, facing southwest.
APPENDIX B SITE PHOTOGRAPHS – DECEMBER 1, 2022
NCDEQ; 22296_Thomas Residence_App. B CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

View of MW-2, facing west.

View of MW-3, facing west.
APPENDIX B SITE PHOTOGRAPHS – DECEMBER 1, 2022
NCDEQ; 22296_Thomas Residence_App. B CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

View of MW-4, facing northwest.

View of MW-5, facing north.
APPENDIX B SITE PHOTOGRAPHS – DECEMBER 1, 2022
NCDEQ; 22296_Thomas Residence_App. B CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

View of MW-6, facing south.

View of MW-7, facing west.
APPENDIX B SITE PHOTOGRAPHS – DECEMBER 1, 2022
NCDEQ; 22296_Thomas Residence_App. B CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

View of MW-8, facing east.

View of MW-9, facing south.
APPENDIX B SITE PHOTOGRAPHS – DECEMBER 1, 2022
NCDEQ; 22296_Thomas Residence_App. B CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

View of MW-10, facing south.

View of WSW-1A, facing west. New well on Bradley Property.
APPENDIX B SITE PHOTOGRAPHS – DECEMBER 1, 2022
NCDEQ; 22296_Thomas Residence_App. B CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

View of well tag on new well (WSW-1A).

View of Thomas water supply well, facing west.
APPENDIX B SITE PHOTOGRAPHS – DECEMBER 1, 2022
NCDEQ; 22296_Thomas Residence_App. B CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

View of Metcalf water supply well, facing southeast.

NCDEQ; 22296_Thomas Residence CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

APPENDIX C

JOB HAZARD ANALYSIS
AND FIELD DATA SHEETS
Source Exposure Limit
Groundwater and/or soil vapor 0.5 ppm TLV-TWA ACGIH
Groundwater and/or soil vapor 100 ppm TLV-TWA ACGIH
Groundwater and/or soil vapor 20 ppm TLV-TWA ACGIH
Groundwater and/or soil vapor 100 ppm TLV-TWA ACGIH
Groundwater and/or soil vapor 50 ppm TLV-TWA ACGIH
Groundwater and/or soil vapor 10 ppm TLV-TWA ACGIH
Source Exposure Limit
atmosphere N/A
atmosphere N/A
surroundings N/A
Exposure Potential
Likely
Likely
Likely
Start Stop
7:00 8:30
8:30 8:45
8:45 12:45
10:00 12:45
12:45 14:30
Date and Time:
12/1/22 @ 8:45
12/1/22 @ 8:45
surroundings
NAPHTHALENE ppm
Physical Hazards
Name of Physical Hazard Exposure Level/ Potential
* Gas and/or Diesel
Unlikely
Slips/Trips/Falls Likely
surroundings
Snakes
TOLUENE ppm
XYLENE, ALL ISOMERS ppm
METHYL TERT-BUTYL ETHER ppm
Potential Chemicals Concentration
BENZENE ppm
ETHYL BENZENE ppm
Sunny, Low 40s
Site-Specific Job Hazard Analysis
Location Where Task/Operation Performed
Thomas Residence, Pittsboro, NC
Task/Operation
Gauge and Sample Monitoring Wells, Sample Water Supply Wells
Employee Certifying this JHA
Print Name: Sean O'Neil, P.E.Signature:
Operational Phase
Monitoring
Date(s) this JHA
Conducted:
12/1/22
Equipment Used:PPE D/Water Level Indicator/Sampling Supplies/Aqua Troll 600/Bailers
Van #59 Mileage:
Weather:
Mob van and travel to site.
On site safety meeting. Watch for ants and spiders around wells. Watch for cars on nearby highway and wear
high visibility vest. Practice good housekeeping to avoid slips, trips and falls.
Biological Hazards
Name of Biological Hazard Source
Insect bites and stings
Cold Weather Operations Likely
Heat (ambient)
Chemical Hazards
PERSONNEL ONSITE
Name and Company (Print)Signature
Nathaniel Newman / CATLIN
Sandra Miller / CATLIN
Poison Plants (Ivy, Oak, and/or Sumac)surroundings
Departed site, got ice and dropped samples at lab, return to Raleigh office and demob.
Start:End:
DAILY TASK
Located wells, measured depth to water and sampled. The following wells were dry; MW-3, MW-5, MW-7, MW-8,
MW-9, and MW-10. MW-1 and MW-2 had a passive skimmer in them. Per instructions, skimmer and socks were removed and thrown away.
Sandy sampled nearby water supply wells. Bradley well has been redrilled in front yard. No longer using the
original hand dug well.
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-1 5.21
11.79 0.850
NMT 2.551
17 4.251
2
Method:Bailer Purge Start Time:11:04
Required Bails for 3 Well Volumes:11 Purge Stop Time:11:10
Required Bails for 5 Well Volumes:18 Was Well Purged Dry?YES
Number of Bails Removed:4.75 Sample Time:11:15
Groundwater Removed (gal):1.1
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
11:04 0.00 10.75 3.37 454.37 8.24
11:05 0.19 10.41 9.08 351.03 12.09
11:06 291.93 9.04 9.81 283.73 16.41
11:07 258.24 8.45 9.81 260.94 16.90
11:08 245.33 8.17 9.81 247.51 16.87
Laboratory:Con-Test Analysis:
GROUNDWATER SAMPLING FORM
Water Column (ft below TOC)
One Well Volume (gal)
Three Well Volumes (gal)
Five Well Volumes (gal)
Monitoring Well Information
Well Data
Well ID
Depth to Product (ft below TOC)
Total Well Depth (ft)
N. Newman
12/1/2022
Thomas Residence
220296
Volume of Groundwater in Well
NC-DEQ
Aqua Troll 600
Turbidity and Additional
Sampling Notes
Well Diameter (inches)
Depth to Water (ft below TOC)
6200B
Laboratory Analysis Information
Geochemical Parameters
Bailed dry around 4.75
bails; moderate turbidity,
gray.
Purging Information Information
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-2 10.29
9.71 1.679
NMT 5.038
20 8.397
2
Method:Bailer Purge Start Time:11:22
Required Bails for 3 Well Volumes:21 Purge Stop Time:11:31
Required Bails for 5 Well Volumes:35 Was Well Purged Dry?YES
Number of Bails Removed:14.5 Sample Time:11:35
Groundwater Removed (gal):3.5
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
11:22 0.37 10.13 8.81 239.32 12.39
11:23 323.95 6.32 8.11 246.78 15.57
11:24 312.85 3.65 7.68 240.26 16.36
11:25 330.08 3.29 7.39 218.47 16.70
11:26 384.53 3.57 7.18 189.23 16.89
11:27 408.19 3.49 7.10 153.29 16.94
11:28 419.48 3.61 7.05 126.22 16.98
11:29 421.25 3.75 7.03 108.25 16.98
11:30 422.97 3.92 7.01 98.98 17.01
11:31 423.02 4.04 7.00 94.05 17.01
11:32 369.64 4.05 7.11 96.19 16.84
Laboratory:Con-Test Analysis:
GROUNDWATER SAMPLING FORM
Thomas Residence N. Newman
220296 12/1/2022
NC-DEQ
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
Depth to Water (ft below TOC)One Well Volume (gal)
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
High turbidity; gray. Bailed
dry around 14.5 bails.
Laboratory Analysis Information
6200B
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Aqua Troll 600
Turbidity and Additional
Sampling Notes
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-3 #VALUE!
Dry #VALUE!
NMT #VALUE!
14 #VALUE!
2
Method:Bailer Purge Start Time:
Required Bails for 3 Well Volumes:Purge Stop Time:
Required Bails for 5 Well Volumes:Was Well Purged Dry?
Number of Bails Removed:0 Sample Time:
Groundwater Removed (gal):0.0
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
Laboratory:Analysis:
GROUNDWATER SAMPLING FORM
Thomas Residence N. Newman
220296 12/1/2022
NC-DEQ
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
Depth to Water (ft below TOC)One Well Volume (gal)
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
Dry at 13.9 feet.
Laboratory Analysis Information
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Turbidity and Additional
Sampling Notes
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-4 0.15
13.35 0.024
NMT 0.073
13.5 0.122
2
Method:Bailer Purge Start Time:12:18
Required Bails for 3 Well Volumes:1 Purge Stop Time:12:20
Required Bails for 5 Well Volumes:1 Was Well Purged Dry?Yes
Number of Bails Removed:0 Sample Time:12:25
Groundwater Removed (gal):0.0
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
Laboratory:Con-Test Analysis:
GROUNDWATER SAMPLING FORM
Thomas Residence N. Newman
220296 12/1/2022
NC-DEQ
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
Depth to Water (ft below TOC)One Well Volume (gal)
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
No recharge at all; one
VOA vial recovered.
Laboratory Analysis Information
6200B
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Turbidity and Additional
Sampling Notes
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-5 #VALUE!
Dry #VALUE!
NMT #VALUE!
15.5 #VALUE!
2
Method:Bailer Purge Start Time:
Required Bails for 3 Well Volumes:Purge Stop Time:
Required Bails for 5 Well Volumes:Was Well Purged Dry?
Number of Bails Removed:0 Sample Time:
Groundwater Removed (gal):0.0
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
Laboratory:Analysis:
Depth to Water (ft below TOC)One Well Volume (gal)
GROUNDWATER SAMPLING FORM
Thomas Residence N. Newman
220296 12/1/2022
NC-DEQ
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Turbidity and Additional
Sampling Notes
Dry at 15.5 feet.
Laboratory Analysis Information
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-6 1.39
12.61 0.227
NMT 0.681
14 1.134
2
Method:Bailer Purge Start Time:11:45
Required Bails for 3 Well Volumes:3 Purge Stop Time:11:50
Required Bails for 5 Well Volumes:5 Was Well Purged Dry?YES
Number of Bails Removed:0.1 Sample Time:12:08
Groundwater Removed (gal):0.0
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
Laboratory:Con-Test Analysis:
GROUNDWATER SAMPLING FORM
Thomas Residence N. Newman
220296 12/1/2022
NC-DEQ
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
Depth to Water (ft below TOC)One Well Volume (gal)
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
Almost no water in well.
Samples were almost mud.
No recharge in well above
the level of the mud.
Laboratory Analysis Information
6200B
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Turbidity and Additional
Sampling Notes
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-7 #VALUE!
Dry #VALUE!
NMT #VALUE!
13 #VALUE!
2
Method:Bailer Purge Start Time:
Required Bails for 3 Well Volumes:Purge Stop Time:
Required Bails for 5 Well Volumes:Was Well Purged Dry?
Number of Bails Removed:0 Sample Time:
Groundwater Removed (gal):0.0
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
Laboratory:Analysis:
Depth to Water (ft below TOC)One Well Volume (gal)
GROUNDWATER SAMPLING FORM
Thomas Residence N. Newman
220296 12/1/2022
NC-DEQ
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Turbidity and Additional
Sampling Notes
Dry at 12.4
Laboratory Analysis Information
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-8 -0.08
15.08 -0.013
NMT -0.039
15 -0.065
2
Method:Bailer Purge Start Time:
Required Bails for 3 Well Volumes:0 Purge Stop Time:
Required Bails for 5 Well Volumes:0 Was Well Purged Dry?
Number of Bails Removed:0 Sample Time:
Groundwater Removed (gal):0.0
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
Laboratory:Analysis:
Depth to Water (ft below TOC)One Well Volume (gal)
GROUNDWATER SAMPLING FORM
Thomas Residence N. Newman
220296 12/1/2022
NC-DEQ
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Turbidity and Additional
Sampling Notes
Mud at 15.08
Laboratory Analysis Information
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-9 #VALUE!
Dry #VALUE!
NMT #VALUE!
15 #VALUE!
2
Method:Bailer Purge Start Time:
Required Bails for 3 Well Volumes:Purge Stop Time:
Required Bails for 5 Well Volumes:Was Well Purged Dry?
Number of Bails Removed:0 Sample Time:
Groundwater Removed (gal):0.0
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
Laboratory:Analysis:
Depth to Water (ft below TOC)One Well Volume (gal)
GROUNDWATER SAMPLING FORM
Thomas Residence N. Newman
220293 12/1/2022
NC-DEQ
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Turbidity and Additional
Sampling Notes
Dry at 14.36 feet.
Laboratory Analysis Information
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-10 #VALUE!
Dry #VALUE!
NMT #VALUE!
15 #VALUE!
2
Method:Bailer Purge Start Time:
Required Bails for 3 Well Volumes:Purge Stop Time:
Required Bails for 5 Well Volumes:Was Well Purged Dry?
Number of Bails Removed:0 Sample Time:
Groundwater Removed (gal):0.0
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
Laboratory:Analysis:
Depth to Water (ft below TOC)One Well Volume (gal)
GROUNDWATER SAMPLING FORM
Thomas Residence N. Newman
220293 12/1/2022
NC-DEQ
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Turbidity and Additional
Sampling Notes
Dry at 15.02 feet.
Laboratory Analysis Information
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
WSW-1A
10:16
10:31
No
10:32
Equipment Used:
Time
pH
(Standard Units)
ORP
(mV)
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
Temperature
(Co)
Laboratory:Con-Test Analysis:6200B
Sample Time
WATER SUPPLY WELL SAMPLING FORM
Thomas Residence S. Miller
220296 12/1/2022
NCDEQ - SLP
Water Supply Well Purging Information
Water Supply Well ID
Purge Start Time
Purge Stop Time
Was Well Purged Dry?
Laboratory Analysis Information
Comments
New well. Sample taken from spigot at well located under fake rock in front yard.
Geochemical Parameters
Turbidity and Additional
Sampling Notes
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
Metcalf WSW
11:40
11:55
No
11:56
Equipment Used:
Time
pH
(Standard Units)
ORP
(mV)
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
Temperature
(Co)
Laboratory:Con-Test Analysis:6200B
Sample Time
WATER SUPPLY WELL SAMPLING FORM
Thomas Residence S. Miller
220296 12/1/2022
NCDEQ - SLP
Water Supply Well Purging Information
Water Supply Well ID
Purge Start Time
Purge Stop Time
Was Well Purged Dry?
Laboratory Analysis Information
Comments
Sampled taken from spigot on front of house.
Geochemical Parameters
Turbidity and Additional
Sampling Notes
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
Thomas WSW
11:14
11:29
No
11:30
Equipment Used:
Time
pH
(Standard Units)
ORP
(mV)
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
Temperature
(Co)
Laboratory:Con-Test Analysis:6200B
Sample Time
WATER SUPPLY WELL SAMPLING FORM
Thomas Residence S. Miller
220296 12/1/2022
NCDEQ - SLP
Water Supply Well Purging Information
Water Supply Well ID
Purge Start Time
Purge Stop Time
Was Well Purged Dry?
Laboratory Analysis Information
Comments
Sample was taken from spigot at well.
Geochemical Parameters
Turbidity and Additional
Sampling Notes

NCDEQ; 22296_Thomas Residence CATLIN Engineers and Scientists
CATLIN Project No. 220296 January 2023

APPENDIX D

LABORATORY ANALYTICAL REPORT AND
CHAIN OF CUSTODY DOCUMENT

39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
December 8, 2022
Sean O’Neil
CATLIN Engineers & Scientists
1044 Washington Street
Raleigh, NC 27605
Project Location: Pittsboro, NC
Client Job Number:
Project Number: 220296.3
Laboratory Work Order Number: 22L0269
Enclosed are results of analyses for samples as received by the laboratory on December 2, 2022. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Kaitlyn A. Feliciano
Project Manager
Page 1 of 35
Table of Contents
Table of Contents
Sample Summary 3
Hits Only Report 4
Case Narrative 6
Sample Results 7
22L0269-01 7
22L0269-02 9
22L0269-03 11
22L0269-04 13
22L0269-05 15
22L0269-06 17
22L0269-07 19
22L0269-08 21
22L0269-09 23
Sample Preparation Information 25
QC Data 26
Volatile Organic Compounds by GC/MS 26
B324776 26
Flag/Qualifier Summary 30
Certifications 31
Chain of Custody/Sample Receipt 33
Page 2 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL SUMMARY
12/8/2022
CATLIN Engineers & Scientists
1044 Washington Street
Raleigh, NC 27605
ATTN: Sean O’Neil
220296.3
22L0269
The results of analyses performed on the following samples submitted to the CON-TEST Analytical Laboratory are found in this report.
PROJECT LOCATION:
PURCHASE ORDER NUMBER:
PROJECT NUMBER:
REPORT DATE:
WORK ORDER NUMBER:
FIELD SAMPLE #LAB ID:MATRIX TESTSAMPLE DESCRIPTION SUB LAB
Pittsboro, NC
221201-4
MW-1 22L0269-01 Ground Water SM21-23 6200B
MW-2 22L0269-02 Ground Water SM21-23 6200B
MW-4 22L0269-03 Ground Water SM21-23 6200B
MW-6 22L0269-04 Ground Water SM21-23 6200B
WSW-1 22L0269-05 Ground Water SM21-23 6200B
Thomas WSW 22L0269-06 Ground Water SM21-23 6200B
Metcalf WSW 22L0269-07 Ground Water SM21-23 6200B
FB 22L0269-08 Ground Water SM21-23 6200B
TB 22L0269-09 Ground Water SM21-23 6200B
[TOC_1]Sample Summary[TOC]
Page 3 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
[TOC_1]Hits Only Report[TOC]EXECUTIVE SUMMARY
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
22L0269-01MW-1
DL
1,2-Dichloroethane 1.4 1.0 g/L SM21-23 6200B0.31
Benzene 67 0.50 g/L SM21-23 6200B0.20
Diisopropyl Ether (DIPE)26 0.50 g/L SM21-23 6200B0.13
Ethylbenzene 3.5 0.50 g/L SM21-23 6200B0.21
Isopropylbenzene (Cumene)0.27 0.50 g/L SM21-23 6200BJ0.11
m+p Xylene 3.8 1.0 g/L SM21-23 6200B0.46
o-Xylene 0.88 0.50 g/L SM21-23 6200B0.23
Toluene 6.0 0.50 g/L SM21-23 6200B0.22
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
22L0269-02MW-2
DL
1,2,4-Trimethylbenzene 44 0.50 g/L SM21-23 6200B0.20
1,3,5-Trimethylbenzene 27 0.50 g/L SM21-23 6200B0.11
Benzene 9.5 0.50 g/L SM21-23 6200B0.20
Diisopropyl Ether (DIPE)1.3 0.50 g/L SM21-23 6200B0.13
Ethylbenzene 100 0.50 g/L SM21-23 6200B0.21
Isopropylbenzene (Cumene)9.8 0.50 g/L SM21-23 6200B0.11
m+p Xylene 75 1.0 g/L SM21-23 6200B0.46
Naphthalene 12 0.50 g/L SM21-23 6200B0.24
n-Butylbenzene 2.7 0.50 g/L SM21-23 6200B0.15
n-Propylbenzene 28 0.50 g/L SM21-23 6200B0.086
o-Xylene 7.2 0.50 g/L SM21-23 6200B0.23
p-Isopropyltoluene (p-Cymene)1.1 0.50 g/L SM21-23 6200B0.097
sec-Butylbenzene 1.7 0.50 g/L SM21-23 6200B0.11
Styrene 0.24 0.50 g/L SM21-23 6200BJ0.11
tert-Butylbenzene 0.31 0.50 g/L SM21-23 6200BJ0.13
Toluene 9.4 0.50 g/L SM21-23 6200B0.22
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
22L0269-03MW-4
DL
Acetone 54 50 g/L SM21-23 6200B2.0
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
22L0269-04MW-6
DL
Acetone 17 50 g/L SM21-23 6200BJ2.0
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
22L0269-05WSW-1
DL
2-Butanone (MEK)37 5.0 g/L SM21-23 6200B1.6
Acetone 28 50 g/L SM21-23 6200BJ2.0
Bromodichloromethane 3.7 0.50 g/L SM21-23 6200B0.18
Bromoform 6.7 2.0 g/L SM21-23 6200B0.38
Chlorodibromomethane 4.8 0.50 g/L SM21-23 6200B0.22
Chloroform 7.6 0.50 g/L SM21-23 6200B0.17
Toluene 33 0.50 g/L SM21-23 6200B0.22
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
22L0269-06Thomas WSW
DL
Acetone 6.2 50 g/L SM21-23 6200BJ2.0
Page 4 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
22L0269-07Metcalf WSW
DL
Acetone 5.6 50 g/L SM21-23 6200BJ2.0
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
22L0269-08FB
DL
Acetone 8.2 50 g/L SM21-23 6200BJ2.0
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
22L0269-09TB
DL
Acetone 5.4 50 g/L SM21-23 6200BJ2.0
Chloroform 1.3 0.50 g/L SM21-23 6200B0.17
Con-Test does not accept liability for the consequences of any actions taken solely on the basis of the information provided in the Executive Summary
section of this report. Users must review this report in its entirety to determine data usability and assessment.
Page 5 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
[TOC_1]Case Narrative[TOC]
SM21-23 6200B
Qualifications:
Laboratory fortified blank/laboratory control sample recovery and duplicate recoveries outside of control limits. Data validation is not
affected since all results are "not detected" for associated samples in this batch and bias is on the high side.
Analyte & Samples(s) Qualified:
L-02
1,1-Dichloroethylene
B324776-BS1, B324776-BSD1
Chloromethane
B324776-BS1, B324776-BSD1
Dichlorodifluoromethane (Freon 12)
B324776-BS1, B324776-BSD1
Ethanol
B324776-BS1, B324776-BSD1
Vinyl Chloride
B324776-BS1, B324776-BSD1
Either laboratory fortified blank/laboratory control sample or duplicate recovery is outside of control limits, but the other is within limits. RPD
between the two LFB/LCS results is within method specified criteria.
Analyte & Samples(s) Qualified:
L-07
Trichlorofluoromethane (Freon 11)
B324776-BS1
Laboratory fortified blank duplicate RPD is outside of control limits. Reduced precision is anticipated for any reported value for this
compound.
Analyte & Samples(s) Qualified:
R-05
Bromomethane
22L0269-01[MW-1], 22L0269-02[MW-2], 22L0269-03[MW-4], 22L0269-04[MW-6], 22L0269-05[WSW-1], 22L0269-06[Thomas WSW], 22L0269-07[Metcalf WSW],
22L0269-08[FB], 22L0269-09[TB], B324776-BLK1, B324776-BS1, B324776-BSD1
The results of analyses reported only relate to samples submitted to the Con-Test Analytical Laboratory for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
Meghan E. Kelley
Reporting Specialist
Page 6 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-01
Field Sample #: MW-1
Sample Matrix: Ground Water
Sampled: 12/1/2022 11:15
[TOC_2]22L0269-01[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 12/6/22 19:08 EEHg/L2.0 12/5/22SM21-23 6200B1Acetone
67 0.50 12/6/22 19:08 EEHg/L0.20 12/5/22SM21-23 6200B1Benzene
ND 0.50 12/6/22 19:08 EEHg/L0.15 12/5/22SM21-23 6200B1Bromobenzene
ND 0.50 12/6/22 19:08 EEHg/L0.31 12/5/22SM21-23 6200B1Bromochloromethane
ND 0.50 12/6/22 19:08 EEHg/L0.18 12/5/22SM21-23 6200B1Bromodichloromethane
ND 2.0 12/6/22 19:08 EEHg/L0.38 12/5/22SM21-23 6200B1Bromoform
ND 2.0 12/6/22 19:08 EEHg/L1.5 12/5/22SM21-23 6200B1R-05Bromomethane
ND 5.0 12/6/22 19:08 EEHg/L1.6 12/5/22SM21-23 6200B12-Butanone (MEK)
ND 0.50 12/6/22 19:08 EEHg/L0.15 12/5/22SM21-23 6200B1n-Butylbenzene
ND 0.50 12/6/22 19:08 EEHg/L0.11 12/5/22SM21-23 6200B1sec-Butylbenzene
ND 0.50 12/6/22 19:08 EEHg/L0.13 12/5/22SM21-23 6200B1tert-Butylbenzene
ND 0.50 12/6/22 19:08 EEHg/L0.16 12/5/22SM21-23 6200B1Carbon Tetrachloride
ND 0.50 12/6/22 19:08 EEHg/L0.11 12/5/22SM21-23 6200B1Chlorobenzene
ND 50 12/6/22 19:08 EEHg/L26 12/5/22SM21-23 6200B1Ethanol
ND 0.50 12/6/22 19:08 EEHg/L0.22 12/5/22SM21-23 6200B1Chlorodibromomethane
ND 0.50 12/6/22 19:08 EEHg/L0.32 12/5/22SM21-23 6200B1Chloroethane
ND 0.50 12/6/22 19:08 EEHg/L0.17 12/5/22SM21-23 6200B1Chloroform
ND 1.0 12/6/22 19:08 EEHg/L0.52 12/5/22SM21-23 6200B1Chloromethane
ND 0.50 12/6/22 19:08 EEHg/L0.11 12/5/22SM21-23 6200B12-Chlorotoluene
ND 0.50 12/6/22 19:08 EEHg/L0.12 12/5/22SM21-23 6200B14-Chlorotoluene
ND 0.50 12/6/22 19:08 EEHg/L0.17 12/5/22SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 12/6/22 19:08 EEHg/L0.12 12/5/22SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 12/6/22 19:08 EEHg/L0.12 12/5/22SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 12/6/22 19:08 EEHg/L0.13 12/5/22SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 12/6/22 19:08 EEHg/L0.19 12/5/22SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 12/6/22 19:08 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethane
1.4 1.0 12/6/22 19:08 EEHg/L0.31 12/5/22SM21-23 6200B11,2-Dichloroethane
ND 0.50 12/6/22 19:08 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethylene
ND 0.50 12/6/22 19:08 EEHg/L0.15 12/5/22SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 12/6/22 19:08 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,2-Dichloroethylene
ND 0.50 12/6/22 19:08 EEHg/L0.18 12/5/22SM21-23 6200B11,2-Dichloropropane
ND 0.50 12/6/22 19:08 EEHg/L0.13 12/5/22SM21-23 6200B11,3-Dichloropropane
ND 0.50 12/6/22 19:08 EEHg/L0.33 12/5/22SM21-23 6200B12,2-Dichloropropane
ND 0.50 12/6/22 19:08 EEHg/L0.15 12/5/22SM21-23 6200B11,1-Dichloropropene
ND 0.50 12/6/22 19:08 EEHg/L0.16 12/5/22SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 12/6/22 19:08 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,3-Dichloropropene
26 0.50 12/6/22 19:08 EEHg/L0.13 12/5/22SM21-23 6200B1Diisopropyl Ether (DIPE)
3.5 0.50 12/6/22 19:08 EEHg/L0.21 12/5/22SM21-23 6200B1Ethylbenzene
ND 5.0 12/6/22 19:08 EEHg/L1.1 12/5/22SM21-23 6200B12-Hexanone (MBK)
0.27 0.50 12/6/22 19:08 EEHg/L0.11 12/5/22SM21-23 6200B1JIsopropylbenzene (Cumene)
ND 0.50 12/6/22 19:08 EEHg/L0.097 12/5/22SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 12/6/22 19:08 EEHg/L0.17 12/5/22SM21-23 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 12/6/22 19:08 EEHg/L0.23 12/5/22SM21-23 6200B1Methylene Chloride
ND 5.0 12/6/22 19:08 EEHg/L1.3 12/5/22SM21-23 6200B14-Methyl-2-pentanone (MIBK)
[TOC_1]Sample Results[TOC]
Page 7 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-01
Field Sample #: MW-1
Sample Matrix: Ground Water
Sampled: 12/1/2022 11:15
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 12/6/22 19:08 EEHg/L0.24 12/5/22SM21-23 6200B1Naphthalene
ND 0.50 12/6/22 19:08 EEHg/L0.086 12/5/22SM21-23 6200B1n-Propylbenzene
ND 0.50 12/6/22 19:08 EEHg/L0.11 12/5/22SM21-23 6200B1Styrene
ND 0.50 12/6/22 19:08 EEHg/L0.13 12/5/22SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 12/6/22 19:08 EEHg/L0.19 12/5/22SM21-23 6200B1Tetrachloroethylene
6.0 0.50 12/6/22 19:08 EEHg/L0.22 12/5/22SM21-23 6200B1Toluene
ND 1.0 12/6/22 19:08 EEHg/L0.30 12/5/22SM21-23 6200B11,2,3-Trichlorobenzene
ND 0.50 12/6/22 19:08 EEHg/L0.25 12/5/22SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 12/6/22 19:08 EEHg/L0.17 12/5/22SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 12/6/22 19:08 EEHg/L0.18 12/5/22SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 12/6/22 19:08 EEHg/L0.19 12/5/22SM21-23 6200B1Trichloroethylene
ND 0.50 12/6/22 19:08 EEHg/L0.18 12/5/22SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 12/6/22 19:08 EEHg/L0.28 12/5/22SM21-23 6200B11,2,3-Trichloropropane
ND 0.50 12/6/22 19:08 EEHg/L0.20 12/5/22SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 12/6/22 19:08 EEHg/L0.11 12/5/22SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 12/6/22 19:08 EEHg/L1.5 12/5/22SM21-23 6200B1Vinyl Acetate
ND 0.50 12/6/22 19:08 EEHg/L0.21 12/5/22SM21-23 6200B1Vinyl Chloride
3.8 1.0 12/6/22 19:08 EEHg/L0.46 12/5/22SM21-23 6200B1m+p Xylene
0.88 0.50 12/6/22 19:08 EEHg/L0.23 12/5/22SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 105 12/6/22 19:0870-130
Toluene-d8 98.2 12/6/22 19:0870-130
4-Bromofluorobenzene 99.2 12/6/22 19:0870-130
Page 8 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-02
Field Sample #: MW-2
Sample Matrix: Ground Water
Sampled: 12/1/2022 11:35
[TOC_2]22L0269-02[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 12/6/22 17:19 EEHg/L2.0 12/5/22SM21-23 6200B1Acetone
9.5 0.50 12/6/22 17:19 EEHg/L0.20 12/5/22SM21-23 6200B1Benzene
ND 0.50 12/6/22 17:19 EEHg/L0.15 12/5/22SM21-23 6200B1Bromobenzene
ND 0.50 12/6/22 17:19 EEHg/L0.31 12/5/22SM21-23 6200B1Bromochloromethane
ND 0.50 12/6/22 17:19 EEHg/L0.18 12/5/22SM21-23 6200B1Bromodichloromethane
ND 2.0 12/6/22 17:19 EEHg/L0.38 12/5/22SM21-23 6200B1Bromoform
ND 2.0 12/6/22 17:19 EEHg/L1.5 12/5/22SM21-23 6200B1R-05Bromomethane
ND 5.0 12/6/22 17:19 EEHg/L1.6 12/5/22SM21-23 6200B12-Butanone (MEK)
2.7 0.50 12/6/22 17:19 EEHg/L0.15 12/5/22SM21-23 6200B1n-Butylbenzene
1.7 0.50 12/6/22 17:19 EEHg/L0.11 12/5/22SM21-23 6200B1sec-Butylbenzene
0.31 0.50 12/6/22 17:19 EEHg/L0.13 12/5/22SM21-23 6200B1Jtert-Butylbenzene
ND 0.50 12/6/22 17:19 EEHg/L0.16 12/5/22SM21-23 6200B1Carbon Tetrachloride
ND 0.50 12/6/22 17:19 EEHg/L0.11 12/5/22SM21-23 6200B1Chlorobenzene
ND 50 12/6/22 17:19 EEHg/L26 12/5/22SM21-23 6200B1Ethanol
ND 0.50 12/6/22 17:19 EEHg/L0.22 12/5/22SM21-23 6200B1Chlorodibromomethane
ND 0.50 12/6/22 17:19 EEHg/L0.32 12/5/22SM21-23 6200B1Chloroethane
ND 0.50 12/6/22 17:19 EEHg/L0.17 12/5/22SM21-23 6200B1Chloroform
ND 1.0 12/6/22 17:19 EEHg/L0.52 12/5/22SM21-23 6200B1Chloromethane
ND 0.50 12/6/22 17:19 EEHg/L0.11 12/5/22SM21-23 6200B12-Chlorotoluene
ND 0.50 12/6/22 17:19 EEHg/L0.12 12/5/22SM21-23 6200B14-Chlorotoluene
ND 0.50 12/6/22 17:19 EEHg/L0.17 12/5/22SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 12/6/22 17:19 EEHg/L0.12 12/5/22SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 12/6/22 17:19 EEHg/L0.12 12/5/22SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 12/6/22 17:19 EEHg/L0.13 12/5/22SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 12/6/22 17:19 EEHg/L0.19 12/5/22SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 12/6/22 17:19 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethane
ND 1.0 12/6/22 17:19 EEHg/L0.31 12/5/22SM21-23 6200B11,2-Dichloroethane
ND 0.50 12/6/22 17:19 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethylene
ND 0.50 12/6/22 17:19 EEHg/L0.15 12/5/22SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 12/6/22 17:19 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,2-Dichloroethylene
ND 0.50 12/6/22 17:19 EEHg/L0.18 12/5/22SM21-23 6200B11,2-Dichloropropane
ND 0.50 12/6/22 17:19 EEHg/L0.13 12/5/22SM21-23 6200B11,3-Dichloropropane
ND 0.50 12/6/22 17:19 EEHg/L0.33 12/5/22SM21-23 6200B12,2-Dichloropropane
ND 0.50 12/6/22 17:19 EEHg/L0.15 12/5/22SM21-23 6200B11,1-Dichloropropene
ND 0.50 12/6/22 17:19 EEHg/L0.16 12/5/22SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 12/6/22 17:19 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,3-Dichloropropene
1.3 0.50 12/6/22 17:19 EEHg/L0.13 12/5/22SM21-23 6200B1Diisopropyl Ether (DIPE)
100 0.50 12/6/22 17:19 EEHg/L0.21 12/5/22SM21-23 6200B1Ethylbenzene
ND 5.0 12/6/22 17:19 EEHg/L1.1 12/5/22SM21-23 6200B12-Hexanone (MBK)
9.8 0.50 12/6/22 17:19 EEHg/L0.11 12/5/22SM21-23 6200B1Isopropylbenzene (Cumene)
1.1 0.50 12/6/22 17:19 EEHg/L0.097 12/5/22SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 12/6/22 17:19 EEHg/L0.17 12/5/22SM21-23 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 12/6/22 17:19 EEHg/L0.23 12/5/22SM21-23 6200B1Methylene Chloride
ND 5.0 12/6/22 17:19 EEHg/L1.3 12/5/22SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 9 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-02
Field Sample #: MW-2
Sample Matrix: Ground Water
Sampled: 12/1/2022 11:35
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
12 0.50 12/6/22 17:19 EEHg/L0.24 12/5/22SM21-23 6200B1Naphthalene
28 0.50 12/6/22 17:19 EEHg/L0.086 12/5/22SM21-23 6200B1n-Propylbenzene
0.24 0.50 12/6/22 17:19 EEHg/L0.11 12/5/22SM21-23 6200B1JStyrene
ND 0.50 12/6/22 17:19 EEHg/L0.13 12/5/22SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 12/6/22 17:19 EEHg/L0.19 12/5/22SM21-23 6200B1Tetrachloroethylene
9.4 0.50 12/6/22 17:19 EEHg/L0.22 12/5/22SM21-23 6200B1Toluene
ND 1.0 12/6/22 17:19 EEHg/L0.30 12/5/22SM21-23 6200B11,2,3-Trichlorobenzene
ND 0.50 12/6/22 17:19 EEHg/L0.25 12/5/22SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 12/6/22 17:19 EEHg/L0.17 12/5/22SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 12/6/22 17:19 EEHg/L0.18 12/5/22SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 12/6/22 17:19 EEHg/L0.19 12/5/22SM21-23 6200B1Trichloroethylene
ND 0.50 12/6/22 17:19 EEHg/L0.18 12/5/22SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 12/6/22 17:19 EEHg/L0.28 12/5/22SM21-23 6200B11,2,3-Trichloropropane
44 0.50 12/6/22 17:19 EEHg/L0.20 12/5/22SM21-23 6200B11,2,4-Trimethylbenzene
27 0.50 12/6/22 17:19 EEHg/L0.11 12/5/22SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 12/6/22 17:19 EEHg/L1.5 12/5/22SM21-23 6200B1Vinyl Acetate
ND 0.50 12/6/22 17:19 EEHg/L0.21 12/5/22SM21-23 6200B1Vinyl Chloride
75 1.0 12/6/22 17:19 EEHg/L0.46 12/5/22SM21-23 6200B1m+p Xylene
7.2 0.50 12/6/22 17:19 EEHg/L0.23 12/5/22SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 99.6 12/6/22 17:1970-130
Toluene-d8 97.0 12/6/22 17:1970-130
4-Bromofluorobenzene 102 12/6/22 17:1970-130
Page 10 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-03
Field Sample #: MW-4
Sample Matrix: Ground Water
Sampled: 12/1/2022 12:25
[TOC_2]22L0269-03[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
54 50 12/6/22 13:41 EEHg/L2.0 12/5/22SM21-23 6200B1Acetone
ND 0.50 12/6/22 13:41 EEHg/L0.20 12/5/22SM21-23 6200B1Benzene
ND 0.50 12/6/22 13:41 EEHg/L0.15 12/5/22SM21-23 6200B1Bromobenzene
ND 0.50 12/6/22 13:41 EEHg/L0.31 12/5/22SM21-23 6200B1Bromochloromethane
ND 0.50 12/6/22 13:41 EEHg/L0.18 12/5/22SM21-23 6200B1Bromodichloromethane
ND 2.0 12/6/22 13:41 EEHg/L0.38 12/5/22SM21-23 6200B1Bromoform
ND 2.0 12/6/22 13:41 EEHg/L1.5 12/5/22SM21-23 6200B1R-05Bromomethane
ND 5.0 12/6/22 13:41 EEHg/L1.6 12/5/22SM21-23 6200B12-Butanone (MEK)
ND 0.50 12/6/22 13:41 EEHg/L0.15 12/5/22SM21-23 6200B1n-Butylbenzene
ND 0.50 12/6/22 13:41 EEHg/L0.11 12/5/22SM21-23 6200B1sec-Butylbenzene
ND 0.50 12/6/22 13:41 EEHg/L0.13 12/5/22SM21-23 6200B1tert-Butylbenzene
ND 0.50 12/6/22 13:41 EEHg/L0.16 12/5/22SM21-23 6200B1Carbon Tetrachloride
ND 0.50 12/6/22 13:41 EEHg/L0.11 12/5/22SM21-23 6200B1Chlorobenzene
ND 50 12/6/22 13:41 EEHg/L26 12/5/22SM21-23 6200B1Ethanol
ND 0.50 12/6/22 13:41 EEHg/L0.22 12/5/22SM21-23 6200B1Chlorodibromomethane
ND 0.50 12/6/22 13:41 EEHg/L0.32 12/5/22SM21-23 6200B1Chloroethane
ND 0.50 12/6/22 13:41 EEHg/L0.17 12/5/22SM21-23 6200B1Chloroform
ND 1.0 12/6/22 13:41 EEHg/L0.52 12/5/22SM21-23 6200B1Chloromethane
ND 0.50 12/6/22 13:41 EEHg/L0.11 12/5/22SM21-23 6200B12-Chlorotoluene
ND 0.50 12/6/22 13:41 EEHg/L0.12 12/5/22SM21-23 6200B14-Chlorotoluene
ND 0.50 12/6/22 13:41 EEHg/L0.17 12/5/22SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 12/6/22 13:41 EEHg/L0.12 12/5/22SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 12/6/22 13:41 EEHg/L0.12 12/5/22SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 12/6/22 13:41 EEHg/L0.13 12/5/22SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 12/6/22 13:41 EEHg/L0.19 12/5/22SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 12/6/22 13:41 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethane
ND 1.0 12/6/22 13:41 EEHg/L0.31 12/5/22SM21-23 6200B11,2-Dichloroethane
ND 0.50 12/6/22 13:41 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethylene
ND 0.50 12/6/22 13:41 EEHg/L0.15 12/5/22SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 12/6/22 13:41 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,2-Dichloroethylene
ND 0.50 12/6/22 13:41 EEHg/L0.18 12/5/22SM21-23 6200B11,2-Dichloropropane
ND 0.50 12/6/22 13:41 EEHg/L0.13 12/5/22SM21-23 6200B11,3-Dichloropropane
ND 0.50 12/6/22 13:41 EEHg/L0.33 12/5/22SM21-23 6200B12,2-Dichloropropane
ND 0.50 12/6/22 13:41 EEHg/L0.15 12/5/22SM21-23 6200B11,1-Dichloropropene
ND 0.50 12/6/22 13:41 EEHg/L0.16 12/5/22SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 12/6/22 13:41 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,3-Dichloropropene
ND 0.50 12/6/22 13:41 EEHg/L0.13 12/5/22SM21-23 6200B1Diisopropyl Ether (DIPE)
ND 0.50 12/6/22 13:41 EEHg/L0.21 12/5/22SM21-23 6200B1Ethylbenzene
ND 5.0 12/6/22 13:41 EEHg/L1.1 12/5/22SM21-23 6200B12-Hexanone (MBK)
ND 0.50 12/6/22 13:41 EEHg/L0.11 12/5/22SM21-23 6200B1Isopropylbenzene (Cumene)
ND 0.50 12/6/22 13:41 EEHg/L0.097 12/5/22SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 12/6/22 13:41 EEHg/L0.17 12/5/22SM21-23 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 12/6/22 13:41 EEHg/L0.23 12/5/22SM21-23 6200B1Methylene Chloride
ND 5.0 12/6/22 13:41 EEHg/L1.3 12/5/22SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 11 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-03
Field Sample #: MW-4
Sample Matrix: Ground Water
Sampled: 12/1/2022 12:25
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 12/6/22 13:41 EEHg/L0.24 12/5/22SM21-23 6200B1Naphthalene
ND 0.50 12/6/22 13:41 EEHg/L0.086 12/5/22SM21-23 6200B1n-Propylbenzene
ND 0.50 12/6/22 13:41 EEHg/L0.11 12/5/22SM21-23 6200B1Styrene
ND 0.50 12/6/22 13:41 EEHg/L0.13 12/5/22SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 12/6/22 13:41 EEHg/L0.19 12/5/22SM21-23 6200B1Tetrachloroethylene
ND 0.50 12/6/22 13:41 EEHg/L0.22 12/5/22SM21-23 6200B1Toluene
ND 1.0 12/6/22 13:41 EEHg/L0.30 12/5/22SM21-23 6200B11,2,3-Trichlorobenzene
ND 0.50 12/6/22 13:41 EEHg/L0.25 12/5/22SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 12/6/22 13:41 EEHg/L0.17 12/5/22SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 12/6/22 13:41 EEHg/L0.18 12/5/22SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 12/6/22 13:41 EEHg/L0.19 12/5/22SM21-23 6200B1Trichloroethylene
ND 0.50 12/6/22 13:41 EEHg/L0.18 12/5/22SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 12/6/22 13:41 EEHg/L0.28 12/5/22SM21-23 6200B11,2,3-Trichloropropane
ND 0.50 12/6/22 13:41 EEHg/L0.20 12/5/22SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 12/6/22 13:41 EEHg/L0.11 12/5/22SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 12/6/22 13:41 EEHg/L1.5 12/5/22SM21-23 6200B1Vinyl Acetate
ND 0.50 12/6/22 13:41 EEHg/L0.21 12/5/22SM21-23 6200B1Vinyl Chloride
ND 1.0 12/6/22 13:41 EEHg/L0.46 12/5/22SM21-23 6200B1m+p Xylene
ND 0.50 12/6/22 13:41 EEHg/L0.23 12/5/22SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 101 12/6/22 13:4170-130
Toluene-d8 98.4 12/6/22 13:4170-130
4-Bromofluorobenzene 97.0 12/6/22 13:4170-130
Page 12 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-04
Field Sample #: MW-6
Sample Matrix: Ground Water
Sampled: 12/1/2022 12:08
[TOC_2]22L0269-04[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
17 50 12/6/22 14:08 EEHg/L2.0 12/5/22SM21-23 6200B1JAcetone
ND 0.50 12/6/22 14:08 EEHg/L0.20 12/5/22SM21-23 6200B1Benzene
ND 0.50 12/6/22 14:08 EEHg/L0.15 12/5/22SM21-23 6200B1Bromobenzene
ND 0.50 12/6/22 14:08 EEHg/L0.31 12/5/22SM21-23 6200B1Bromochloromethane
ND 0.50 12/6/22 14:08 EEHg/L0.18 12/5/22SM21-23 6200B1Bromodichloromethane
ND 2.0 12/6/22 14:08 EEHg/L0.38 12/5/22SM21-23 6200B1Bromoform
ND 2.0 12/6/22 14:08 EEHg/L1.5 12/5/22SM21-23 6200B1R-05Bromomethane
ND 5.0 12/6/22 14:08 EEHg/L1.6 12/5/22SM21-23 6200B12-Butanone (MEK)
ND 0.50 12/6/22 14:08 EEHg/L0.15 12/5/22SM21-23 6200B1n-Butylbenzene
ND 0.50 12/6/22 14:08 EEHg/L0.11 12/5/22SM21-23 6200B1sec-Butylbenzene
ND 0.50 12/6/22 14:08 EEHg/L0.13 12/5/22SM21-23 6200B1tert-Butylbenzene
ND 0.50 12/6/22 14:08 EEHg/L0.16 12/5/22SM21-23 6200B1Carbon Tetrachloride
ND 0.50 12/6/22 14:08 EEHg/L0.11 12/5/22SM21-23 6200B1Chlorobenzene
ND 50 12/6/22 14:08 EEHg/L26 12/5/22SM21-23 6200B1Ethanol
ND 0.50 12/6/22 14:08 EEHg/L0.22 12/5/22SM21-23 6200B1Chlorodibromomethane
ND 0.50 12/6/22 14:08 EEHg/L0.32 12/5/22SM21-23 6200B1Chloroethane
ND 0.50 12/6/22 14:08 EEHg/L0.17 12/5/22SM21-23 6200B1Chloroform
ND 1.0 12/6/22 14:08 EEHg/L0.52 12/5/22SM21-23 6200B1Chloromethane
ND 0.50 12/6/22 14:08 EEHg/L0.11 12/5/22SM21-23 6200B12-Chlorotoluene
ND 0.50 12/6/22 14:08 EEHg/L0.12 12/5/22SM21-23 6200B14-Chlorotoluene
ND 0.50 12/6/22 14:08 EEHg/L0.17 12/5/22SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 12/6/22 14:08 EEHg/L0.12 12/5/22SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 12/6/22 14:08 EEHg/L0.12 12/5/22SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 12/6/22 14:08 EEHg/L0.13 12/5/22SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 12/6/22 14:08 EEHg/L0.19 12/5/22SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 12/6/22 14:08 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethane
ND 1.0 12/6/22 14:08 EEHg/L0.31 12/5/22SM21-23 6200B11,2-Dichloroethane
ND 0.50 12/6/22 14:08 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethylene
ND 0.50 12/6/22 14:08 EEHg/L0.15 12/5/22SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 12/6/22 14:08 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,2-Dichloroethylene
ND 0.50 12/6/22 14:08 EEHg/L0.18 12/5/22SM21-23 6200B11,2-Dichloropropane
ND 0.50 12/6/22 14:08 EEHg/L0.13 12/5/22SM21-23 6200B11,3-Dichloropropane
ND 0.50 12/6/22 14:08 EEHg/L0.33 12/5/22SM21-23 6200B12,2-Dichloropropane
ND 0.50 12/6/22 14:08 EEHg/L0.15 12/5/22SM21-23 6200B11,1-Dichloropropene
ND 0.50 12/6/22 14:08 EEHg/L0.16 12/5/22SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 12/6/22 14:08 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,3-Dichloropropene
ND 0.50 12/6/22 14:08 EEHg/L0.13 12/5/22SM21-23 6200B1Diisopropyl Ether (DIPE)
ND 0.50 12/6/22 14:08 EEHg/L0.21 12/5/22SM21-23 6200B1Ethylbenzene
ND 5.0 12/6/22 14:08 EEHg/L1.1 12/5/22SM21-23 6200B12-Hexanone (MBK)
ND 0.50 12/6/22 14:08 EEHg/L0.11 12/5/22SM21-23 6200B1Isopropylbenzene (Cumene)
ND 0.50 12/6/22 14:08 EEHg/L0.097 12/5/22SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 12/6/22 14:08 EEHg/L0.17 12/5/22SM21-23 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 12/6/22 14:08 EEHg/L0.23 12/5/22SM21-23 6200B1Methylene Chloride
ND 5.0 12/6/22 14:08 EEHg/L1.3 12/5/22SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 13 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-04
Field Sample #: MW-6
Sample Matrix: Ground Water
Sampled: 12/1/2022 12:08
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 12/6/22 14:08 EEHg/L0.24 12/5/22SM21-23 6200B1Naphthalene
ND 0.50 12/6/22 14:08 EEHg/L0.086 12/5/22SM21-23 6200B1n-Propylbenzene
ND 0.50 12/6/22 14:08 EEHg/L0.11 12/5/22SM21-23 6200B1Styrene
ND 0.50 12/6/22 14:08 EEHg/L0.13 12/5/22SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 12/6/22 14:08 EEHg/L0.19 12/5/22SM21-23 6200B1Tetrachloroethylene
ND 0.50 12/6/22 14:08 EEHg/L0.22 12/5/22SM21-23 6200B1Toluene
ND 1.0 12/6/22 14:08 EEHg/L0.30 12/5/22SM21-23 6200B11,2,3-Trichlorobenzene
ND 0.50 12/6/22 14:08 EEHg/L0.25 12/5/22SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 12/6/22 14:08 EEHg/L0.17 12/5/22SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 12/6/22 14:08 EEHg/L0.18 12/5/22SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 12/6/22 14:08 EEHg/L0.19 12/5/22SM21-23 6200B1Trichloroethylene
ND 0.50 12/6/22 14:08 EEHg/L0.18 12/5/22SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 12/6/22 14:08 EEHg/L0.28 12/5/22SM21-23 6200B11,2,3-Trichloropropane
ND 0.50 12/6/22 14:08 EEHg/L0.20 12/5/22SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 12/6/22 14:08 EEHg/L0.11 12/5/22SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 12/6/22 14:08 EEHg/L1.5 12/5/22SM21-23 6200B1Vinyl Acetate
ND 0.50 12/6/22 14:08 EEHg/L0.21 12/5/22SM21-23 6200B1Vinyl Chloride
ND 1.0 12/6/22 14:08 EEHg/L0.46 12/5/22SM21-23 6200B1m+p Xylene
ND 0.50 12/6/22 14:08 EEHg/L0.23 12/5/22SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 102 12/6/22 14:0870-130
Toluene-d8 101 12/6/22 14:0870-130
4-Bromofluorobenzene 96.7 12/6/22 14:0870-130
Page 14 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-05
Field Sample #: WSW-1
Sample Matrix: Ground Water
Sampled: 12/1/2022 10:32
[TOC_2]22L0269-05[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
28 50 12/6/22 14:35 EEHg/L2.0 12/5/22SM21-23 6200B1JAcetone
ND 0.50 12/6/22 14:35 EEHg/L0.20 12/5/22SM21-23 6200B1Benzene
ND 0.50 12/6/22 14:35 EEHg/L0.15 12/5/22SM21-23 6200B1Bromobenzene
ND 0.50 12/6/22 14:35 EEHg/L0.31 12/5/22SM21-23 6200B1Bromochloromethane
3.7 0.50 12/6/22 14:35 EEHg/L0.18 12/5/22SM21-23 6200B1Bromodichloromethane
6.7 2.0 12/6/22 14:35 EEHg/L0.38 12/5/22SM21-23 6200B1Bromoform
ND 2.0 12/6/22 14:35 EEHg/L1.5 12/5/22SM21-23 6200B1R-05Bromomethane
37 5.0 12/6/22 14:35 EEHg/L1.6 12/5/22SM21-23 6200B12-Butanone (MEK)
ND 0.50 12/6/22 14:35 EEHg/L0.15 12/5/22SM21-23 6200B1n-Butylbenzene
ND 0.50 12/6/22 14:35 EEHg/L0.11 12/5/22SM21-23 6200B1sec-Butylbenzene
ND 0.50 12/6/22 14:35 EEHg/L0.13 12/5/22SM21-23 6200B1tert-Butylbenzene
ND 0.50 12/6/22 14:35 EEHg/L0.16 12/5/22SM21-23 6200B1Carbon Tetrachloride
ND 0.50 12/6/22 14:35 EEHg/L0.11 12/5/22SM21-23 6200B1Chlorobenzene
ND 50 12/6/22 14:35 EEHg/L26 12/5/22SM21-23 6200B1Ethanol
4.8 0.50 12/6/22 14:35 EEHg/L0.22 12/5/22SM21-23 6200B1Chlorodibromomethane
ND 0.50 12/6/22 14:35 EEHg/L0.32 12/5/22SM21-23 6200B1Chloroethane
7.6 0.50 12/6/22 14:35 EEHg/L0.17 12/5/22SM21-23 6200B1Chloroform
ND 1.0 12/6/22 14:35 EEHg/L0.52 12/5/22SM21-23 6200B1Chloromethane
ND 0.50 12/6/22 14:35 EEHg/L0.11 12/5/22SM21-23 6200B12-Chlorotoluene
ND 0.50 12/6/22 14:35 EEHg/L0.12 12/5/22SM21-23 6200B14-Chlorotoluene
ND 0.50 12/6/22 14:35 EEHg/L0.17 12/5/22SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 12/6/22 14:35 EEHg/L0.12 12/5/22SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 12/6/22 14:35 EEHg/L0.12 12/5/22SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 12/6/22 14:35 EEHg/L0.13 12/5/22SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 12/6/22 14:35 EEHg/L0.19 12/5/22SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 12/6/22 14:35 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethane
ND 1.0 12/6/22 14:35 EEHg/L0.31 12/5/22SM21-23 6200B11,2-Dichloroethane
ND 0.50 12/6/22 14:35 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethylene
ND 0.50 12/6/22 14:35 EEHg/L0.15 12/5/22SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 12/6/22 14:35 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,2-Dichloroethylene
ND 0.50 12/6/22 14:35 EEHg/L0.18 12/5/22SM21-23 6200B11,2-Dichloropropane
ND 0.50 12/6/22 14:35 EEHg/L0.13 12/5/22SM21-23 6200B11,3-Dichloropropane
ND 0.50 12/6/22 14:35 EEHg/L0.33 12/5/22SM21-23 6200B12,2-Dichloropropane
ND 0.50 12/6/22 14:35 EEHg/L0.15 12/5/22SM21-23 6200B11,1-Dichloropropene
ND 0.50 12/6/22 14:35 EEHg/L0.16 12/5/22SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 12/6/22 14:35 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,3-Dichloropropene
ND 0.50 12/6/22 14:35 EEHg/L0.13 12/5/22SM21-23 6200B1Diisopropyl Ether (DIPE)
ND 0.50 12/6/22 14:35 EEHg/L0.21 12/5/22SM21-23 6200B1Ethylbenzene
ND 5.0 12/6/22 14:35 EEHg/L1.1 12/5/22SM21-23 6200B12-Hexanone (MBK)
ND 0.50 12/6/22 14:35 EEHg/L0.11 12/5/22SM21-23 6200B1Isopropylbenzene (Cumene)
ND 0.50 12/6/22 14:35 EEHg/L0.097 12/5/22SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 12/6/22 14:35 EEHg/L0.17 12/5/22SM21-23 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 12/6/22 14:35 EEHg/L0.23 12/5/22SM21-23 6200B1Methylene Chloride
ND 5.0 12/6/22 14:35 EEHg/L1.3 12/5/22SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 15 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-05
Field Sample #: WSW-1
Sample Matrix: Ground Water
Sampled: 12/1/2022 10:32
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 12/6/22 14:35 EEHg/L0.24 12/5/22SM21-23 6200B1Naphthalene
ND 0.50 12/6/22 14:35 EEHg/L0.086 12/5/22SM21-23 6200B1n-Propylbenzene
ND 0.50 12/6/22 14:35 EEHg/L0.11 12/5/22SM21-23 6200B1Styrene
ND 0.50 12/6/22 14:35 EEHg/L0.13 12/5/22SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 12/6/22 14:35 EEHg/L0.19 12/5/22SM21-23 6200B1Tetrachloroethylene
33 0.50 12/6/22 14:35 EEHg/L0.22 12/5/22SM21-23 6200B1Toluene
ND 1.0 12/6/22 14:35 EEHg/L0.30 12/5/22SM21-23 6200B11,2,3-Trichlorobenzene
ND 0.50 12/6/22 14:35 EEHg/L0.25 12/5/22SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 12/6/22 14:35 EEHg/L0.17 12/5/22SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 12/6/22 14:35 EEHg/L0.18 12/5/22SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 12/6/22 14:35 EEHg/L0.19 12/5/22SM21-23 6200B1Trichloroethylene
ND 0.50 12/6/22 14:35 EEHg/L0.18 12/5/22SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 12/6/22 14:35 EEHg/L0.28 12/5/22SM21-23 6200B11,2,3-Trichloropropane
ND 0.50 12/6/22 14:35 EEHg/L0.20 12/5/22SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 12/6/22 14:35 EEHg/L0.11 12/5/22SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 12/6/22 14:35 EEHg/L1.5 12/5/22SM21-23 6200B1Vinyl Acetate
ND 0.50 12/6/22 14:35 EEHg/L0.21 12/5/22SM21-23 6200B1Vinyl Chloride
ND 1.0 12/6/22 14:35 EEHg/L0.46 12/5/22SM21-23 6200B1m+p Xylene
ND 0.50 12/6/22 14:35 EEHg/L0.23 12/5/22SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 99.3 12/6/22 14:3570-130
Toluene-d8 98.5 12/6/22 14:3570-130
4-Bromofluorobenzene 98.4 12/6/22 14:3570-130
Page 16 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-06
Field Sample #: Thomas WSW
Sample Matrix: Ground Water
Sampled: 12/1/2022 11:30
[TOC_2]22L0269-06[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
6.2 50 12/6/22 15:02 EEHg/L2.0 12/5/22SM21-23 6200B1JAcetone
ND 0.50 12/6/22 15:02 EEHg/L0.20 12/5/22SM21-23 6200B1Benzene
ND 0.50 12/6/22 15:02 EEHg/L0.15 12/5/22SM21-23 6200B1Bromobenzene
ND 0.50 12/6/22 15:02 EEHg/L0.31 12/5/22SM21-23 6200B1Bromochloromethane
ND 0.50 12/6/22 15:02 EEHg/L0.18 12/5/22SM21-23 6200B1Bromodichloromethane
ND 2.0 12/6/22 15:02 EEHg/L0.38 12/5/22SM21-23 6200B1Bromoform
ND 2.0 12/6/22 15:02 EEHg/L1.5 12/5/22SM21-23 6200B1R-05Bromomethane
ND 5.0 12/6/22 15:02 EEHg/L1.6 12/5/22SM21-23 6200B12-Butanone (MEK)
ND 0.50 12/6/22 15:02 EEHg/L0.15 12/5/22SM21-23 6200B1n-Butylbenzene
ND 0.50 12/6/22 15:02 EEHg/L0.11 12/5/22SM21-23 6200B1sec-Butylbenzene
ND 0.50 12/6/22 15:02 EEHg/L0.13 12/5/22SM21-23 6200B1tert-Butylbenzene
ND 0.50 12/6/22 15:02 EEHg/L0.16 12/5/22SM21-23 6200B1Carbon Tetrachloride
ND 0.50 12/6/22 15:02 EEHg/L0.11 12/5/22SM21-23 6200B1Chlorobenzene
ND 50 12/6/22 15:02 EEHg/L26 12/5/22SM21-23 6200B1Ethanol
ND 0.50 12/6/22 15:02 EEHg/L0.22 12/5/22SM21-23 6200B1Chlorodibromomethane
ND 0.50 12/6/22 15:02 EEHg/L0.32 12/5/22SM21-23 6200B1Chloroethane
ND 0.50 12/6/22 15:02 EEHg/L0.17 12/5/22SM21-23 6200B1Chloroform
ND 1.0 12/6/22 15:02 EEHg/L0.52 12/5/22SM21-23 6200B1Chloromethane
ND 0.50 12/6/22 15:02 EEHg/L0.11 12/5/22SM21-23 6200B12-Chlorotoluene
ND 0.50 12/6/22 15:02 EEHg/L0.12 12/5/22SM21-23 6200B14-Chlorotoluene
ND 0.50 12/6/22 15:02 EEHg/L0.17 12/5/22SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 12/6/22 15:02 EEHg/L0.12 12/5/22SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 12/6/22 15:02 EEHg/L0.12 12/5/22SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 12/6/22 15:02 EEHg/L0.13 12/5/22SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 12/6/22 15:02 EEHg/L0.19 12/5/22SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 12/6/22 15:02 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethane
ND 1.0 12/6/22 15:02 EEHg/L0.31 12/5/22SM21-23 6200B11,2-Dichloroethane
ND 0.50 12/6/22 15:02 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethylene
ND 0.50 12/6/22 15:02 EEHg/L0.15 12/5/22SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 12/6/22 15:02 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,2-Dichloroethylene
ND 0.50 12/6/22 15:02 EEHg/L0.18 12/5/22SM21-23 6200B11,2-Dichloropropane
ND 0.50 12/6/22 15:02 EEHg/L0.13 12/5/22SM21-23 6200B11,3-Dichloropropane
ND 0.50 12/6/22 15:02 EEHg/L0.33 12/5/22SM21-23 6200B12,2-Dichloropropane
ND 0.50 12/6/22 15:02 EEHg/L0.15 12/5/22SM21-23 6200B11,1-Dichloropropene
ND 0.50 12/6/22 15:02 EEHg/L0.16 12/5/22SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 12/6/22 15:02 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,3-Dichloropropene
ND 0.50 12/6/22 15:02 EEHg/L0.13 12/5/22SM21-23 6200B1Diisopropyl Ether (DIPE)
ND 0.50 12/6/22 15:02 EEHg/L0.21 12/5/22SM21-23 6200B1Ethylbenzene
ND 5.0 12/6/22 15:02 EEHg/L1.1 12/5/22SM21-23 6200B12-Hexanone (MBK)
ND 0.50 12/6/22 15:02 EEHg/L0.11 12/5/22SM21-23 6200B1Isopropylbenzene (Cumene)
ND 0.50 12/6/22 15:02 EEHg/L0.097 12/5/22SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 12/6/22 15:02 EEHg/L0.17 12/5/22SM21-23 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 12/6/22 15:02 EEHg/L0.23 12/5/22SM21-23 6200B1Methylene Chloride
ND 5.0 12/6/22 15:02 EEHg/L1.3 12/5/22SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 17 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-06
Field Sample #: Thomas WSW
Sample Matrix: Ground Water
Sampled: 12/1/2022 11:30
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 12/6/22 15:02 EEHg/L0.24 12/5/22SM21-23 6200B1Naphthalene
ND 0.50 12/6/22 15:02 EEHg/L0.086 12/5/22SM21-23 6200B1n-Propylbenzene
ND 0.50 12/6/22 15:02 EEHg/L0.11 12/5/22SM21-23 6200B1Styrene
ND 0.50 12/6/22 15:02 EEHg/L0.13 12/5/22SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 12/6/22 15:02 EEHg/L0.19 12/5/22SM21-23 6200B1Tetrachloroethylene
ND 0.50 12/6/22 15:02 EEHg/L0.22 12/5/22SM21-23 6200B1Toluene
ND 1.0 12/6/22 15:02 EEHg/L0.30 12/5/22SM21-23 6200B11,2,3-Trichlorobenzene
ND 0.50 12/6/22 15:02 EEHg/L0.25 12/5/22SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 12/6/22 15:02 EEHg/L0.17 12/5/22SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 12/6/22 15:02 EEHg/L0.18 12/5/22SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 12/6/22 15:02 EEHg/L0.19 12/5/22SM21-23 6200B1Trichloroethylene
ND 0.50 12/6/22 15:02 EEHg/L0.18 12/5/22SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 12/6/22 15:02 EEHg/L0.28 12/5/22SM21-23 6200B11,2,3-Trichloropropane
ND 0.50 12/6/22 15:02 EEHg/L0.20 12/5/22SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 12/6/22 15:02 EEHg/L0.11 12/5/22SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 12/6/22 15:02 EEHg/L1.5 12/5/22SM21-23 6200B1Vinyl Acetate
ND 0.50 12/6/22 15:02 EEHg/L0.21 12/5/22SM21-23 6200B1Vinyl Chloride
ND 1.0 12/6/22 15:02 EEHg/L0.46 12/5/22SM21-23 6200B1m+p Xylene
ND 0.50 12/6/22 15:02 EEHg/L0.23 12/5/22SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 109 12/6/22 15:0270-130
Toluene-d8 100 12/6/22 15:0270-130
4-Bromofluorobenzene 95.1 12/6/22 15:0270-130
Page 18 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-07
Field Sample #: Metcalf WSW
Sample Matrix: Ground Water
Sampled: 12/1/2022 11:56
[TOC_2]22L0269-07[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
5.6 50 12/6/22 15:30 EEHg/L2.0 12/5/22SM21-23 6200B1JAcetone
ND 0.50 12/6/22 15:30 EEHg/L0.20 12/5/22SM21-23 6200B1Benzene
ND 0.50 12/6/22 15:30 EEHg/L0.15 12/5/22SM21-23 6200B1Bromobenzene
ND 0.50 12/6/22 15:30 EEHg/L0.31 12/5/22SM21-23 6200B1Bromochloromethane
ND 0.50 12/6/22 15:30 EEHg/L0.18 12/5/22SM21-23 6200B1Bromodichloromethane
ND 2.0 12/6/22 15:30 EEHg/L0.38 12/5/22SM21-23 6200B1Bromoform
ND 2.0 12/6/22 15:30 EEHg/L1.5 12/5/22SM21-23 6200B1R-05Bromomethane
ND 5.0 12/6/22 15:30 EEHg/L1.6 12/5/22SM21-23 6200B12-Butanone (MEK)
ND 0.50 12/6/22 15:30 EEHg/L0.15 12/5/22SM21-23 6200B1n-Butylbenzene
ND 0.50 12/6/22 15:30 EEHg/L0.11 12/5/22SM21-23 6200B1sec-Butylbenzene
ND 0.50 12/6/22 15:30 EEHg/L0.13 12/5/22SM21-23 6200B1tert-Butylbenzene
ND 0.50 12/6/22 15:30 EEHg/L0.16 12/5/22SM21-23 6200B1Carbon Tetrachloride
ND 0.50 12/6/22 15:30 EEHg/L0.11 12/5/22SM21-23 6200B1Chlorobenzene
ND 50 12/6/22 15:30 EEHg/L26 12/5/22SM21-23 6200B1Ethanol
ND 0.50 12/6/22 15:30 EEHg/L0.22 12/5/22SM21-23 6200B1Chlorodibromomethane
ND 0.50 12/6/22 15:30 EEHg/L0.32 12/5/22SM21-23 6200B1Chloroethane
ND 0.50 12/6/22 15:30 EEHg/L0.17 12/5/22SM21-23 6200B1Chloroform
ND 1.0 12/6/22 15:30 EEHg/L0.52 12/5/22SM21-23 6200B1Chloromethane
ND 0.50 12/6/22 15:30 EEHg/L0.11 12/5/22SM21-23 6200B12-Chlorotoluene
ND 0.50 12/6/22 15:30 EEHg/L0.12 12/5/22SM21-23 6200B14-Chlorotoluene
ND 0.50 12/6/22 15:30 EEHg/L0.17 12/5/22SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 12/6/22 15:30 EEHg/L0.12 12/5/22SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 12/6/22 15:30 EEHg/L0.12 12/5/22SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 12/6/22 15:30 EEHg/L0.13 12/5/22SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 12/6/22 15:30 EEHg/L0.19 12/5/22SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 12/6/22 15:30 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethane
ND 1.0 12/6/22 15:30 EEHg/L0.31 12/5/22SM21-23 6200B11,2-Dichloroethane
ND 0.50 12/6/22 15:30 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethylene
ND 0.50 12/6/22 15:30 EEHg/L0.15 12/5/22SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 12/6/22 15:30 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,2-Dichloroethylene
ND 0.50 12/6/22 15:30 EEHg/L0.18 12/5/22SM21-23 6200B11,2-Dichloropropane
ND 0.50 12/6/22 15:30 EEHg/L0.13 12/5/22SM21-23 6200B11,3-Dichloropropane
ND 0.50 12/6/22 15:30 EEHg/L0.33 12/5/22SM21-23 6200B12,2-Dichloropropane
ND 0.50 12/6/22 15:30 EEHg/L0.15 12/5/22SM21-23 6200B11,1-Dichloropropene
ND 0.50 12/6/22 15:30 EEHg/L0.16 12/5/22SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 12/6/22 15:30 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,3-Dichloropropene
ND 0.50 12/6/22 15:30 EEHg/L0.13 12/5/22SM21-23 6200B1Diisopropyl Ether (DIPE)
ND 0.50 12/6/22 15:30 EEHg/L0.21 12/5/22SM21-23 6200B1Ethylbenzene
ND 5.0 12/6/22 15:30 EEHg/L1.1 12/5/22SM21-23 6200B12-Hexanone (MBK)
ND 0.50 12/6/22 15:30 EEHg/L0.11 12/5/22SM21-23 6200B1Isopropylbenzene (Cumene)
ND 0.50 12/6/22 15:30 EEHg/L0.097 12/5/22SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 12/6/22 15:30 EEHg/L0.17 12/5/22SM21-23 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 12/6/22 15:30 EEHg/L0.23 12/5/22SM21-23 6200B1Methylene Chloride
ND 5.0 12/6/22 15:30 EEHg/L1.3 12/5/22SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 19 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-07
Field Sample #: Metcalf WSW
Sample Matrix: Ground Water
Sampled: 12/1/2022 11:56
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 12/6/22 15:30 EEHg/L0.24 12/5/22SM21-23 6200B1Naphthalene
ND 0.50 12/6/22 15:30 EEHg/L0.086 12/5/22SM21-23 6200B1n-Propylbenzene
ND 0.50 12/6/22 15:30 EEHg/L0.11 12/5/22SM21-23 6200B1Styrene
ND 0.50 12/6/22 15:30 EEHg/L0.13 12/5/22SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 12/6/22 15:30 EEHg/L0.19 12/5/22SM21-23 6200B1Tetrachloroethylene
ND 0.50 12/6/22 15:30 EEHg/L0.22 12/5/22SM21-23 6200B1Toluene
ND 1.0 12/6/22 15:30 EEHg/L0.30 12/5/22SM21-23 6200B11,2,3-Trichlorobenzene
ND 0.50 12/6/22 15:30 EEHg/L0.25 12/5/22SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 12/6/22 15:30 EEHg/L0.17 12/5/22SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 12/6/22 15:30 EEHg/L0.18 12/5/22SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 12/6/22 15:30 EEHg/L0.19 12/5/22SM21-23 6200B1Trichloroethylene
ND 0.50 12/6/22 15:30 EEHg/L0.18 12/5/22SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 12/6/22 15:30 EEHg/L0.28 12/5/22SM21-23 6200B11,2,3-Trichloropropane
ND 0.50 12/6/22 15:30 EEHg/L0.20 12/5/22SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 12/6/22 15:30 EEHg/L0.11 12/5/22SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 12/6/22 15:30 EEHg/L1.5 12/5/22SM21-23 6200B1Vinyl Acetate
ND 0.50 12/6/22 15:30 EEHg/L0.21 12/5/22SM21-23 6200B1Vinyl Chloride
ND 1.0 12/6/22 15:30 EEHg/L0.46 12/5/22SM21-23 6200B1m+p Xylene
ND 0.50 12/6/22 15:30 EEHg/L0.23 12/5/22SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 99.4 12/6/22 15:3070-130
Toluene-d8 98.2 12/6/22 15:3070-130
4-Bromofluorobenzene 93.3 12/6/22 15:3070-130
Page 20 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-08
Field Sample #: FB
Sample Matrix: Ground Water
Sampled: 12/1/2022 12:13
[TOC_2]22L0269-08[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
8.2 50 12/6/22 12:19 EEHg/L2.0 12/5/22SM21-23 6200B1JAcetone
ND 0.50 12/6/22 12:19 EEHg/L0.20 12/5/22SM21-23 6200B1Benzene
ND 0.50 12/6/22 12:19 EEHg/L0.15 12/5/22SM21-23 6200B1Bromobenzene
ND 0.50 12/6/22 12:19 EEHg/L0.31 12/5/22SM21-23 6200B1Bromochloromethane
ND 0.50 12/6/22 12:19 EEHg/L0.18 12/5/22SM21-23 6200B1Bromodichloromethane
ND 2.0 12/6/22 12:19 EEHg/L0.38 12/5/22SM21-23 6200B1Bromoform
ND 2.0 12/6/22 12:19 EEHg/L1.5 12/5/22SM21-23 6200B1R-05Bromomethane
ND 5.0 12/6/22 12:19 EEHg/L1.6 12/5/22SM21-23 6200B12-Butanone (MEK)
ND 0.50 12/6/22 12:19 EEHg/L0.15 12/5/22SM21-23 6200B1n-Butylbenzene
ND 0.50 12/6/22 12:19 EEHg/L0.11 12/5/22SM21-23 6200B1sec-Butylbenzene
ND 0.50 12/6/22 12:19 EEHg/L0.13 12/5/22SM21-23 6200B1tert-Butylbenzene
ND 0.50 12/6/22 12:19 EEHg/L0.16 12/5/22SM21-23 6200B1Carbon Tetrachloride
ND 0.50 12/6/22 12:19 EEHg/L0.11 12/5/22SM21-23 6200B1Chlorobenzene
ND 50 12/6/22 12:19 EEHg/L26 12/5/22SM21-23 6200B1Ethanol
ND 0.50 12/6/22 12:19 EEHg/L0.22 12/5/22SM21-23 6200B1Chlorodibromomethane
ND 0.50 12/6/22 12:19 EEHg/L0.32 12/5/22SM21-23 6200B1Chloroethane
ND 0.50 12/6/22 12:19 EEHg/L0.17 12/5/22SM21-23 6200B1Chloroform
ND 1.0 12/6/22 12:19 EEHg/L0.52 12/5/22SM21-23 6200B1Chloromethane
ND 0.50 12/6/22 12:19 EEHg/L0.11 12/5/22SM21-23 6200B12-Chlorotoluene
ND 0.50 12/6/22 12:19 EEHg/L0.12 12/5/22SM21-23 6200B14-Chlorotoluene
ND 0.50 12/6/22 12:19 EEHg/L0.17 12/5/22SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 12/6/22 12:19 EEHg/L0.12 12/5/22SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 12/6/22 12:19 EEHg/L0.12 12/5/22SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 12/6/22 12:19 EEHg/L0.13 12/5/22SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 12/6/22 12:19 EEHg/L0.19 12/5/22SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 12/6/22 12:19 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethane
ND 1.0 12/6/22 12:19 EEHg/L0.31 12/5/22SM21-23 6200B11,2-Dichloroethane
ND 0.50 12/6/22 12:19 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethylene
ND 0.50 12/6/22 12:19 EEHg/L0.15 12/5/22SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 12/6/22 12:19 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,2-Dichloroethylene
ND 0.50 12/6/22 12:19 EEHg/L0.18 12/5/22SM21-23 6200B11,2-Dichloropropane
ND 0.50 12/6/22 12:19 EEHg/L0.13 12/5/22SM21-23 6200B11,3-Dichloropropane
ND 0.50 12/6/22 12:19 EEHg/L0.33 12/5/22SM21-23 6200B12,2-Dichloropropane
ND 0.50 12/6/22 12:19 EEHg/L0.15 12/5/22SM21-23 6200B11,1-Dichloropropene
ND 0.50 12/6/22 12:19 EEHg/L0.16 12/5/22SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 12/6/22 12:19 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,3-Dichloropropene
ND 0.50 12/6/22 12:19 EEHg/L0.13 12/5/22SM21-23 6200B1Diisopropyl Ether (DIPE)
ND 0.50 12/6/22 12:19 EEHg/L0.21 12/5/22SM21-23 6200B1Ethylbenzene
ND 5.0 12/6/22 12:19 EEHg/L1.1 12/5/22SM21-23 6200B12-Hexanone (MBK)
ND 0.50 12/6/22 12:19 EEHg/L0.11 12/5/22SM21-23 6200B1Isopropylbenzene (Cumene)
ND 0.50 12/6/22 12:19 EEHg/L0.097 12/5/22SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 12/6/22 12:19 EEHg/L0.17 12/5/22SM21-23 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 12/6/22 12:19 EEHg/L0.23 12/5/22SM21-23 6200B1Methylene Chloride
ND 5.0 12/6/22 12:19 EEHg/L1.3 12/5/22SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 21 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-08
Field Sample #: FB
Sample Matrix: Ground Water
Sampled: 12/1/2022 12:13
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 12/6/22 12:19 EEHg/L0.24 12/5/22SM21-23 6200B1Naphthalene
ND 0.50 12/6/22 12:19 EEHg/L0.086 12/5/22SM21-23 6200B1n-Propylbenzene
ND 0.50 12/6/22 12:19 EEHg/L0.11 12/5/22SM21-23 6200B1Styrene
ND 0.50 12/6/22 12:19 EEHg/L0.13 12/5/22SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 12/6/22 12:19 EEHg/L0.19 12/5/22SM21-23 6200B1Tetrachloroethylene
ND 0.50 12/6/22 12:19 EEHg/L0.22 12/5/22SM21-23 6200B1Toluene
ND 1.0 12/6/22 12:19 EEHg/L0.30 12/5/22SM21-23 6200B11,2,3-Trichlorobenzene
ND 0.50 12/6/22 12:19 EEHg/L0.25 12/5/22SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 12/6/22 12:19 EEHg/L0.17 12/5/22SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 12/6/22 12:19 EEHg/L0.18 12/5/22SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 12/6/22 12:19 EEHg/L0.19 12/5/22SM21-23 6200B1Trichloroethylene
ND 0.50 12/6/22 12:19 EEHg/L0.18 12/5/22SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 12/6/22 12:19 EEHg/L0.28 12/5/22SM21-23 6200B11,2,3-Trichloropropane
ND 0.50 12/6/22 12:19 EEHg/L0.20 12/5/22SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 12/6/22 12:19 EEHg/L0.11 12/5/22SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 12/6/22 12:19 EEHg/L1.5 12/5/22SM21-23 6200B1Vinyl Acetate
ND 0.50 12/6/22 12:19 EEHg/L0.21 12/5/22SM21-23 6200B1Vinyl Chloride
ND 1.0 12/6/22 12:19 EEHg/L0.46 12/5/22SM21-23 6200B1m+p Xylene
ND 0.50 12/6/22 12:19 EEHg/L0.23 12/5/22SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 99.3 12/6/22 12:1970-130
Toluene-d8 100 12/6/22 12:1970-130
4-Bromofluorobenzene 97.2 12/6/22 12:1970-130
Page 22 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-09
Field Sample #: TB
Sample Matrix: Ground Water
Sampled: 12/1/2022 00:00
[TOC_2]22L0269-09[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
5.4 50 12/6/22 12:47 EEHg/L2.0 12/5/22SM21-23 6200B1JAcetone
ND 0.50 12/6/22 12:47 EEHg/L0.20 12/5/22SM21-23 6200B1Benzene
ND 0.50 12/6/22 12:47 EEHg/L0.15 12/5/22SM21-23 6200B1Bromobenzene
ND 0.50 12/6/22 12:47 EEHg/L0.31 12/5/22SM21-23 6200B1Bromochloromethane
ND 0.50 12/6/22 12:47 EEHg/L0.18 12/5/22SM21-23 6200B1Bromodichloromethane
ND 2.0 12/6/22 12:47 EEHg/L0.38 12/5/22SM21-23 6200B1Bromoform
ND 2.0 12/6/22 12:47 EEHg/L1.5 12/5/22SM21-23 6200B1R-05Bromomethane
ND 5.0 12/6/22 12:47 EEHg/L1.6 12/5/22SM21-23 6200B12-Butanone (MEK)
ND 0.50 12/6/22 12:47 EEHg/L0.15 12/5/22SM21-23 6200B1n-Butylbenzene
ND 0.50 12/6/22 12:47 EEHg/L0.11 12/5/22SM21-23 6200B1sec-Butylbenzene
ND 0.50 12/6/22 12:47 EEHg/L0.13 12/5/22SM21-23 6200B1tert-Butylbenzene
ND 0.50 12/6/22 12:47 EEHg/L0.16 12/5/22SM21-23 6200B1Carbon Tetrachloride
ND 0.50 12/6/22 12:47 EEHg/L0.11 12/5/22SM21-23 6200B1Chlorobenzene
ND 50 12/6/22 12:47 EEHg/L26 12/5/22SM21-23 6200B1Ethanol
ND 0.50 12/6/22 12:47 EEHg/L0.22 12/5/22SM21-23 6200B1Chlorodibromomethane
ND 0.50 12/6/22 12:47 EEHg/L0.32 12/5/22SM21-23 6200B1Chloroethane
1.3 0.50 12/6/22 12:47 EEHg/L0.17 12/5/22SM21-23 6200B1Chloroform
ND 1.0 12/6/22 12:47 EEHg/L0.52 12/5/22SM21-23 6200B1Chloromethane
ND 0.50 12/6/22 12:47 EEHg/L0.11 12/5/22SM21-23 6200B12-Chlorotoluene
ND 0.50 12/6/22 12:47 EEHg/L0.12 12/5/22SM21-23 6200B14-Chlorotoluene
ND 0.50 12/6/22 12:47 EEHg/L0.17 12/5/22SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 12/6/22 12:47 EEHg/L0.12 12/5/22SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 12/6/22 12:47 EEHg/L0.12 12/5/22SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 12/6/22 12:47 EEHg/L0.13 12/5/22SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 12/6/22 12:47 EEHg/L0.19 12/5/22SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 12/6/22 12:47 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethane
ND 1.0 12/6/22 12:47 EEHg/L0.31 12/5/22SM21-23 6200B11,2-Dichloroethane
ND 0.50 12/6/22 12:47 EEHg/L0.14 12/5/22SM21-23 6200B11,1-Dichloroethylene
ND 0.50 12/6/22 12:47 EEHg/L0.15 12/5/22SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 12/6/22 12:47 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,2-Dichloroethylene
ND 0.50 12/6/22 12:47 EEHg/L0.18 12/5/22SM21-23 6200B11,2-Dichloropropane
ND 0.50 12/6/22 12:47 EEHg/L0.13 12/5/22SM21-23 6200B11,3-Dichloropropane
ND 0.50 12/6/22 12:47 EEHg/L0.33 12/5/22SM21-23 6200B12,2-Dichloropropane
ND 0.50 12/6/22 12:47 EEHg/L0.15 12/5/22SM21-23 6200B11,1-Dichloropropene
ND 0.50 12/6/22 12:47 EEHg/L0.16 12/5/22SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 12/6/22 12:47 EEHg/L0.17 12/5/22SM21-23 6200B1trans-1,3-Dichloropropene
ND 0.50 12/6/22 12:47 EEHg/L0.13 12/5/22SM21-23 6200B1Diisopropyl Ether (DIPE)
ND 0.50 12/6/22 12:47 EEHg/L0.21 12/5/22SM21-23 6200B1Ethylbenzene
ND 5.0 12/6/22 12:47 EEHg/L1.1 12/5/22SM21-23 6200B12-Hexanone (MBK)
ND 0.50 12/6/22 12:47 EEHg/L0.11 12/5/22SM21-23 6200B1Isopropylbenzene (Cumene)
ND 0.50 12/6/22 12:47 EEHg/L0.097 12/5/22SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 12/6/22 12:47 EEHg/L0.17 12/5/22SM21-23 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 12/6/22 12:47 EEHg/L0.23 12/5/22SM21-23 6200B1Methylene Chloride
ND 5.0 12/6/22 12:47 EEHg/L1.3 12/5/22SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 23 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 12/2/2022
Work Order: 22L0269Sample Description:Project Location: Pittsboro, NC
Sample ID: 22L0269-09
Field Sample #: TB
Sample Matrix: Ground Water
Sampled: 12/1/2022 00:00
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 12/6/22 12:47 EEHg/L0.24 12/5/22SM21-23 6200B1Naphthalene
ND 0.50 12/6/22 12:47 EEHg/L0.086 12/5/22SM21-23 6200B1n-Propylbenzene
ND 0.50 12/6/22 12:47 EEHg/L0.11 12/5/22SM21-23 6200B1Styrene
ND 0.50 12/6/22 12:47 EEHg/L0.13 12/5/22SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 12/6/22 12:47 EEHg/L0.19 12/5/22SM21-23 6200B1Tetrachloroethylene
ND 0.50 12/6/22 12:47 EEHg/L0.22 12/5/22SM21-23 6200B1Toluene
ND 1.0 12/6/22 12:47 EEHg/L0.30 12/5/22SM21-23 6200B11,2,3-Trichlorobenzene
ND 0.50 12/6/22 12:47 EEHg/L0.25 12/5/22SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 12/6/22 12:47 EEHg/L0.17 12/5/22SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 12/6/22 12:47 EEHg/L0.18 12/5/22SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 12/6/22 12:47 EEHg/L0.19 12/5/22SM21-23 6200B1Trichloroethylene
ND 0.50 12/6/22 12:47 EEHg/L0.18 12/5/22SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 12/6/22 12:47 EEHg/L0.28 12/5/22SM21-23 6200B11,2,3-Trichloropropane
ND 0.50 12/6/22 12:47 EEHg/L0.20 12/5/22SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 12/6/22 12:47 EEHg/L0.11 12/5/22SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 12/6/22 12:47 EEHg/L1.5 12/5/22SM21-23 6200B1Vinyl Acetate
ND 0.50 12/6/22 12:47 EEHg/L0.21 12/5/22SM21-23 6200B1Vinyl Chloride
ND 1.0 12/6/22 12:47 EEHg/L0.46 12/5/22SM21-23 6200B1m+p Xylene
ND 0.50 12/6/22 12:47 EEHg/L0.23 12/5/22SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 99.0 12/6/22 12:4770-130
Toluene-d8 99.2 12/6/22 12:4770-130
4-Bromofluorobenzene 97.0 12/6/22 12:4770-130
Page 24 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Sample Extraction Data
Prep Method: SW-846 5030B-SM21-23 6200B
Lab Number [Field ID]Batch DateInitial [mL]Final [mL]
B324776 12/05/225 5.0022L0269-01 [MW-1]
B324776 12/05/225 5.0022L0269-02 [MW-2]
B324776 12/05/225 5.0022L0269-03 [MW-4]
B324776 12/05/225 5.0022L0269-04 [MW-6]
B324776 12/05/225 5.0022L0269-05 [WSW-1]
B324776 12/05/225 5.0022L0269-06 [Thomas WSW]
B324776 12/05/225 5.0022L0269-07 [Metcalf WSW]
B324776 12/05/225 5.0022L0269-08 [FB]
B324776 12/05/225 5.0022L0269-09 [TB]
[TOC_1]Sample Preparation Information[TOC]
Page 25 of 35
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
[TOC_2]Volatile Organic Compounds by GC/MS[TOC]
Batch B324776 - SW-846 5030B
[TOC_3]B324776[TOC]
Blank (B324776-BLK1) Prepared: 12/05/22 Analyzed: 12/06/22
Acetone g/L50ND
Benzene g/L0.50ND
Bromobenzene g/L0.50ND
Bromochloromethane g/L0.50ND
Bromodichloromethane g/L0.50ND
Bromoform g/L0.50ND
Bromomethane g/L2.0 R-05ND
2-Butanone (MEK)g/L5.0ND
n-Butylbenzene g/L0.50ND
sec-Butylbenzene g/L0.50ND
tert-Butylbenzene g/L0.50ND
Carbon Tetrachloride g/L0.50ND
Chlorobenzene g/L0.50ND
Ethanol g/L50ND
Chlorodibromomethane g/L0.50ND
Chloroethane g/L0.50ND
Chloroform g/L0.50ND
Chloromethane g/L0.60ND
2-Chlorotoluene g/L0.50ND
4-Chlorotoluene g/L0.50ND
1,2-Dibromoethane (EDB)g/L0.50ND
1,2-Dichlorobenzene g/L0.50ND
1,3-Dichlorobenzene g/L0.50ND
1,4-Dichlorobenzene g/L0.50ND
Dichlorodifluoromethane (Freon 12)g/L0.50ND
1,1-Dichloroethane g/L0.50ND
1,2-Dichloroethane g/L0.50ND
1,1-Dichloroethylene g/L0.50ND
cis-1,2-Dichloroethylene g/L0.50ND
trans-1,2-Dichloroethylene g/L0.50ND
1,2-Dichloropropane g/L0.50ND
1,3-Dichloropropane g/L0.50ND
2,2-Dichloropropane g/L0.50ND
1,1-Dichloropropene g/L0.50ND
cis-1,3-Dichloropropene g/L0.50ND
trans-1,3-Dichloropropene g/L0.50ND
Diisopropyl Ether (DIPE)g/L0.50ND
Ethylbenzene g/L0.50ND
2-Hexanone (MBK)g/L5.0ND
Isopropylbenzene (Cumene)g/L0.50ND
p-Isopropyltoluene (p-Cymene)g/L0.50ND
Methyl tert-Butyl Ether (MTBE)g/L0.50ND
Methylene Chloride g/L5.0ND
4-Methyl-2-pentanone (MIBK)g/L5.0ND
Naphthalene g/L0.50ND
n-Propylbenzene g/L0.50ND
Styrene g/L0.50ND
1,1,2,2-Tetrachloroethane g/L0.50ND
Tetrachloroethylene g/L0.50ND
Toluene g/L0.50ND
1,2,3-Trichlorobenzene g/L1.0ND
1,2,4-Trichlorobenzene g/L0.50ND
[TOC_1]QC Data[TOC]
Page 26 of 35
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B324776 - SW-846 5030B
Blank (B324776-BLK1) Prepared: 12/05/22 Analyzed: 12/06/22
1,1,1-Trichloroethane g/L0.50ND
1,1,2-Trichloroethane g/L0.50ND
Trichloroethylene g/L0.50ND
Trichlorofluoromethane (Freon 11)g/L0.50ND
1,2,3-Trichloropropane g/L0.50ND
1,2,4-Trimethylbenzene g/L0.50ND
1,3,5-Trimethylbenzene g/L0.50ND
Vinyl Acetate g/L20ND
Vinyl Chloride g/L0.50ND
m+p Xylene g/L1.0ND
o-Xylene g/L0.50ND
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 98.324.6
g/L 25.0 70-130Surrogate: Toluene-d8 96.824.2
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 99.224.8
LCS (B324776-BS1) Prepared: 12/05/22 Analyzed: 12/06/22
Acetone g/L50 100 70-130122122
Benzene g/L0.50 10.0 70-13011811.8
Bromobenzene g/L0.50 10.0 70-13012312.3
Bromochloromethane g/L0.50 10.0 70-13012312.3
Bromodichloromethane g/L0.50 10.0 70-13011911.9
Bromoform g/L0.50 10.0 70-13010110.1
Bromomethane g/L2.0 10.0 R-0560-14073.17.31
2-Butanone (MEK)g/L5.0 100 70-130110110
n-Butylbenzene g/L0.50 10.0 70-13011311.3
sec-Butylbenzene g/L0.50 10.0 70-13010910.9
tert-Butylbenzene g/L0.50 10.0 70-13011111.1
Carbon Tetrachloride g/L0.50 10.0 70-13012012.0
Chlorobenzene g/L0.50 10.0 70-13011911.9
Ethanol g/L50 100 L-0270-130274*274
Chlorodibromomethane g/L0.50 10.0 70-13011411.4
Chloroethane g/L0.50 10.0 60-14073.67.36
Chloroform g/L0.50 10.0 70-13012512.5
Chloromethane g/L0.60 10.0 L-0260-140314*31.4
2-Chlorotoluene g/L0.50 10.0 70-13010610.6
4-Chlorotoluene g/L0.50 10.0 70-13011411.4
1,2-Dibromoethane (EDB)g/L0.50 10.0 70-13011311.3
1,2-Dichlorobenzene g/L0.50 10.0 70-13011511.5
1,3-Dichlorobenzene g/L0.50 10.0 70-13011511.5
1,4-Dichlorobenzene g/L0.50 10.0 70-13011011.0
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 L-0260-140146*14.6
1,1-Dichloroethane g/L0.50 10.0 70-13011111.1
1,2-Dichloroethane g/L0.50 10.0 70-13011511.5
1,1-Dichloroethylene g/L0.50 10.0 L-0270-130139*13.9
cis-1,2-Dichloroethylene g/L0.50 10.0 70-13012812.8
trans-1,2-Dichloroethylene g/L0.50 10.0 70-13012012.0
1,2-Dichloropropane g/L0.50 10.0 70-13012112.1
1,3-Dichloropropane g/L0.50 10.0 70-13012212.2
2,2-Dichloropropane g/L0.50 10.0 70-13076.57.65
1,1-Dichloropropene g/L0.50 10.0 70-13012612.6
cis-1,3-Dichloropropene g/L0.50 10.0 70-13010710.7
trans-1,3-Dichloropropene g/L0.50 10.0 70-13010210.2
Page 27 of 35
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B324776 - SW-846 5030B
LCS (B324776-BS1) Prepared: 12/05/22 Analyzed: 12/06/22
Diisopropyl Ether (DIPE)g/L0.50 10.0 70-13012912.9
Ethylbenzene g/L0.50 10.0 70-13011811.8
2-Hexanone (MBK)g/L5.0 100 70-130114114
Isopropylbenzene (Cumene)g/L0.50 10.0 70-13011711.7
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 70-13011311.3
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 70-13010910.9
Methylene Chloride g/L5.0 10.0 70-13011311.3
4-Methyl-2-pentanone (MIBK)g/L5.0 100 70-130116116
Naphthalene g/L0.50 10.0 70-13089.38.93
n-Propylbenzene g/L0.50 10.0 70-13011611.6
Styrene g/L0.50 10.0 70-13011911.9
1,1,2,2-Tetrachloroethane g/L0.50 10.0 70-13011411.4
Tetrachloroethylene g/L0.50 10.0 70-13012712.7
Toluene g/L0.50 10.0 70-13012212.2
1,2,3-Trichlorobenzene g/L1.0 10.0 70-13011511.5
1,2,4-Trichlorobenzene g/L0.50 10.0 70-13011211.2
1,1,1-Trichloroethane g/L0.50 10.0 70-13012112.1
1,1,2-Trichloroethane g/L0.50 10.0 70-13012312.3
Trichloroethylene g/L0.50 10.0 70-13012812.8
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 L-0770-130138*13.8
1,2,3-Trichloropropane g/L0.50 10.0 70-13010710.7
1,2,4-Trimethylbenzene g/L0.50 10.0 70-13011011.0
1,3,5-Trimethylbenzene g/L0.50 10.0 70-13011611.6
Vinyl Acetate g/L20 100 70-130105105
Vinyl Chloride g/L0.50 10.0 L-0260-140509*50.9
m+p Xylene g/L1.0 20.0 70-13011923.8
o-Xylene g/L0.50 10.0 70-13011711.7
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 97.224.3
g/L 25.0 70-130Surrogate: Toluene-d8 99.825.0
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10325.8
LCS Dup (B324776-BSD1) Prepared: 12/05/22 Analyzed: 12/06/22
Acetone g/L50 100 2570-130118 4.01118
Benzene g/L0.50 10.0 2570-130114 3.2811.4
Bromobenzene g/L0.50 10.0 2570-130120 2.9712.0
Bromochloromethane g/L0.50 10.0 2570-130119 3.7111.9
Bromodichloromethane g/L0.50 10.0 2570-130121 1.2512.1
Bromoform g/L0.50 10.0 2570-130102 0.69110.2
Bromomethane g/L2.0 10.0 25 R-0560-14094.6 25.6 *9.46
2-Butanone (MEK)g/L5.0 100 2570-130109 1.39109
n-Butylbenzene g/L0.50 10.0 2570-130106 6.3810.6
sec-Butylbenzene g/L0.50 10.0 2570-130104 5.2610.4
tert-Butylbenzene g/L0.50 10.0 2570-130106 4.1410.6
Carbon Tetrachloride g/L0.50 10.0 2570-130119 1.4211.9
Chlorobenzene g/L0.50 10.0 2570-130114 3.8611.4
Ethanol g/L50 100 25 L-0270-130284 3.51*284
Chlorodibromomethane g/L0.50 10.0 2570-130109 5.2010.9
Chloroethane g/L0.50 10.0 2560-14070.3 4.597.03
Chloroform g/L0.50 10.0 2570-130123 1.4512.3
Chloromethane g/L0.60 10.0 25 L-0260-140273 14.0*27.3
2-Chlorotoluene g/L0.50 10.0 2570-130105 1.4210.5
4-Chlorotoluene g/L0.50 10.0 2570-130109 3.8610.9
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B324776 - SW-846 5030B
LCS Dup (B324776-BSD1) Prepared: 12/05/22 Analyzed: 12/06/22
1,2-Dibromoethane (EDB)g/L0.50 10.0 2570-130109 3.6110.9
1,2-Dichlorobenzene g/L0.50 10.0 2570-130112 2.3811.2
1,3-Dichlorobenzene g/L0.50 10.0 2570-130109 5.3410.9
1,4-Dichlorobenzene g/L0.50 10.0 2570-130106 4.2510.6
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 25 L-0260-140144 0.967*14.4
1,1-Dichloroethane g/L0.50 10.0 2570-130109 1.8110.9
1,2-Dichloroethane g/L0.50 10.0 2570-130111 3.2711.1
1,1-Dichloroethylene g/L0.50 10.0 25 L-0270-130134 3.82*13.4
cis-1,2-Dichloroethylene g/L0.50 10.0 2570-130125 2.9212.5
trans-1,2-Dichloroethylene g/L0.50 10.0 2570-130114 4.8011.4
1,2-Dichloropropane g/L0.50 10.0 2570-130116 4.1211.6
1,3-Dichloropropane g/L0.50 10.0 2570-130118 3.5811.8
2,2-Dichloropropane g/L0.50 10.0 2570-13073.2 4.417.32
1,1-Dichloropropene g/L0.50 10.0 2570-130121 4.5312.1
cis-1,3-Dichloropropene g/L0.50 10.0 2570-130104 2.8510.4
trans-1,3-Dichloropropene g/L0.50 10.0 2570-13097.8 4.609.78
Diisopropyl Ether (DIPE)g/L0.50 10.0 2570-130128 0.15612.8
Ethylbenzene g/L0.50 10.0 2570-130113 5.0211.3
2-Hexanone (MBK)g/L5.0 100 2570-130112 1.98112
Isopropylbenzene (Cumene)g/L0.50 10.0 2570-130112 4.4711.2
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 2570-130108 4.8110.8
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 2570-130105 3.9310.5
Methylene Chloride g/L5.0 10.0 2570-130124 8.9612.4
4-Methyl-2-pentanone (MIBK)g/L5.0 100 2570-130111 4.05111
Naphthalene g/L0.50 10.0 2570-13083.2 7.078.32
n-Propylbenzene g/L0.50 10.0 2570-130110 4.5111.0
Styrene g/L0.50 10.0 2570-130116 2.4611.6
1,1,2,2-Tetrachloroethane g/L0.50 10.0 2570-130108 5.3210.8
Tetrachloroethylene g/L0.50 10.0 2570-130122 4.1812.2
Toluene g/L0.50 10.0 2570-130116 4.6111.6
1,2,3-Trichlorobenzene g/L1.0 10.0 2570-130105 9.1610.5
1,2,4-Trichlorobenzene g/L0.50 10.0 2570-130106 5.6110.6
1,1,1-Trichloroethane g/L0.50 10.0 2570-130117 3.4411.7
1,1,2-Trichloroethane g/L0.50 10.0 2570-130116 5.6011.6
Trichloroethylene g/L0.50 10.0 2570-130121 5.4612.1
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 2570-130129 6.5112.9
1,2,3-Trichloropropane g/L0.50 10.0 2570-130107 0.28110.7
1,2,4-Trimethylbenzene g/L0.50 10.0 2570-130104 5.9710.4
1,3,5-Trimethylbenzene g/L0.50 10.0 2570-130112 3.8611.2
Vinyl Acetate g/L20 100 2570-130103 1.82103
Vinyl Chloride g/L0.50 10.0 25 L-0260-140498 2.27*49.8
m+p Xylene g/L1.0 20.0 2570-130113 5.0522.6
o-Xylene g/L0.50 10.0 2570-130114 2.6811.4
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 98.224.5
g/L 25.0 70-130Surrogate: Toluene-d8 99.524.9
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10325.8
Page 29 of 35
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
*QC result is outside of established limits.
Wide recovery limits established for difficult compound.
Wide RPD limits established for difficult compound.
#Data exceeded client recommended or regulatory level
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
No results have been blank subtracted unless specified in the case narrative section.
FLAG/QUALIFIER SUMMARY
Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
J
Laboratory fortified blank/laboratory control sample recovery and duplicate recoveries outside of control limits.
Data validation is not affected since all results are "not detected" for associated samples in this batch and bias is
on the high side.
L-02
Either laboratory fortified blank/laboratory control sample or duplicate recovery is outside of control limits, but
the other is within limits. RPD between the two LFB/LCS results is within method specified criteria.
L-07
Laboratory fortified blank duplicate RPD is outside of control limits. Reduced precision is anticipated for any
reported value for this compound.
R-05
[TOC_1]Flag/Qualifier Summary[TOC]
Page 30 of 35
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
SM21-23 6200B in Water
NCAcetone
NCBenzene
NCBromobenzene
NCBromochloromethane
NCBromodichloromethane
NCBromoform
NCBromomethane
NC2-Butanone (MEK)
NCn-Butylbenzene
NCsec-Butylbenzene
NCtert-Butylbenzene
NCCarbon Tetrachloride
NCChlorobenzene
NCEthanol
NCChlorodibromomethane
NCChloroethane
NCChloroform
NCChloromethane
NC2-Chlorotoluene
NC4-Chlorotoluene
NC1,2-Dibromoethane (EDB)
NC1,2-Dichlorobenzene
NC1,3-Dichlorobenzene
NC1,4-Dichlorobenzene
NCDichlorodifluoromethane (Freon 12)
NC1,1-Dichloroethane
NC1,2-Dichloroethane
NC1,1-Dichloroethylene
NCcis-1,2-Dichloroethylene
NCtrans-1,2-Dichloroethylene
NC1,2-Dichloropropane
NC1,3-Dichloropropane
NC2,2-Dichloropropane
NC1,1-Dichloropropene
NCcis-1,3-Dichloropropene
NCtrans-1,3-Dichloropropene
NCDiisopropyl Ether (DIPE)
NCEthylbenzene
NC2-Hexanone (MBK)
NCIsopropylbenzene (Cumene)
NCp-Isopropyltoluene (p-Cymene)
NCMethyl tert-Butyl Ether (MTBE)
NCMethylene Chloride
NC4-Methyl-2-pentanone (MIBK)
NCNaphthalene
NCn-Propylbenzene
NCStyrene
[TOC_1]Certifications[TOC]
Page 31 of 35
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
SM21-23 6200B in Water
NC1,1,2,2-Tetrachloroethane
NCTetrachloroethylene
NCToluene
NC1,2,3-Trichlorobenzene
NC1,2,4-Trichlorobenzene
NC1,1,1-Trichloroethane
NC1,1,2-Trichloroethane
NCTrichloroethylene
NCTrichlorofluoromethane (Freon 11)
NC1,2,3-Trichloropropane
NC1,2,4-Trimethylbenzene
NC1,3,5-Trimethylbenzene
NCVinyl Acetate
NCVinyl Chloride
NCm+p Xylene
NCo-Xylene
The CON-TEST Environmental Laboratory operates under the following certifications and accreditations:
Code Description Number Expires
652North Carolina Div. of Water QualityNC 12/31/2022
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