FA-846_15545_CA_MRP_20230413_with Soil Profile Data

2725 E. Millbrook Road, Suite 121
Raleigh, NC 27604
Tel: [phone]
Fax: [phone]
www.oneatlas.com
N.C. Engineering License No. C-1598

April 13, 2023

Mr. Ken Currie
North Carolina Department of Environmental Quality
Division of Waste Management - UST Section
Fayetteville Regional Office
225 Green Street, Suite 714, Systel Building
Fayetteville, North Carolina 28301

RE: Groundwater Monitoring Report
Former Pantry #176
208 Main Street
Clayton, Johnston County, North Carolina 27520
NCDEQ Incident No. 15545
Risk Classification: Intermediate (I125D)

Dear Mr. Currie:

ATC Associates of North Carolina, P.C., on behalf of Circle K Stores, Inc., is submitting the
enclosed Groundwater Monitoring Report for the Former Pantry #176 in Clayton, North Carolina.
This report includes information pertaining to additional soil assessment activities and the
groundwater sampling activities conducted at the site.

If you have any questions or require additional information, please contact us at [phone].

Sincerely,
ATC Associates of North Carolina, P.C.

Maureen Jackson, P.G.
Senior Project Manager

cc: Mr. Alan Cubberley, Circle K Stores, Inc.

GROUNDWATER MONITORING REPORT

Former Pantry #176
208 Main Street
Clayton, Johnston County, North Carolina 27520
NCDEQ Incident No. 15545
Risk Classification: Intermediate (I125D)

April 13, 2023

Groundwater Monitoring Report

Former Pantry #176
208 Main Street
Clayton, Johnston County, North Carolina
Facility ID #0-014691
NCDEQ Incident No. 15545
Risk Classification: I125D

Prepared By: Submitted To:

North Carolina Department of
Environmental Quality
Maureen A. Jackson, P.G. Fayetteville Regional Office
Senior Project Manager Division of Waste Management - UST Section
225 Green Street, Systel Buiding, Suite 714
Fayetteville, North Carolina 28301

___________________________ Submitted By:
Gabriel Araos, P.E.
Senior Project Manager ATC Associates of North Carolina, P.C.
2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina 27604
Phone: [phone]
Fax: [phone]

On Behalf Of:

Circle K Stores, Inc.
1100 Situs Court, Suite 100
Raleigh, North Carolina 27606
Phone: [phone]

April 13, 2023

SITE INFORMATION

Site Identification:
Date of Report: 04/13/2023 Site Risk: Intermediate (I125D)
Facility I.D.: 0-014691 UST Incident Number (if known): 15545
Site Name: Former Pantry #176
Street Address: 208 Main Street
City/Town: Clayton Zip Code: 27520 County: Johnston
Description of Geographical Data Point (e.g., diesel fill port): Onsite Building
Location Method (GPS, topographical map, other): NCDEQ UST Database
Latitude (decimal degrees): 35.6521° N Longitude (decimal degrees): 78.4582° W

Information about Contacts Associated with the Leaking UST System:
UST Owner: Circle K Stores, Inc.
Address: 1100 Situs Court, Suite 100 Raleigh, NC 27606 Phone: [phone]
Property Owner: Hometown Investments, LLC
Address: P.O. Box 133 Clayton, NC 27520 Phone: Unknown
Consultant/Contractor: ATC Associates of North Carolina, P.C.
Address: 609A Piner Road, Suite 115, Wilmington, NC 28409 Phone: [phone]
Analytical Laboratory: SGS North America, Inc. State Certification No.: 487
Address: 500 Ambassador Caffery Scott, Louisiana 70583 Phone: [phone]

Information about Release:
Date Discovered: April 14, 1994
Estimated Quantity of Release: Unknown
Cause of Release: UST System Operations
Source of Release (Dispenser/Piping/UST): UST System
Sizes and contents of UST system(s) from which the release occurred:
Tank ID # Tank Capacity Last Contents Installation Date Removal Date
1 10,000 Gasoline Unknown 4/14/1994
2 8,000 Gasoline Unknown 4/14/1994
TABLE OF CONTENTS

1.0 EXECUTIVE SUMMARY ............................................................................................................. 1

2.0 SITE HISTORY AND CHARACTERIZATION ......................................................................... 4
2.1 UST Owner and Operator Information ............................................................................................. 4
2.2 UST Information ............................................................................................................................... 4
2.3 AST Information ............................................................................................................................... 4
2.4 Release Information .......................................................................................................................... 4
2.5 Site Characteristics ........................................................................................................................... 5
2.6 Regional Geology and Hydrogeology .............................................................................................. 6
2.7 Potential Receptors ........................................................................................................................... 6

3.0 SOIL ASSESSMENT ACTIVITIES ............................................................................................. 6

4.0 GROUNDWATER CHARACTERIZATION .............................................................................. 7
4.1 Groundwater Levels .......................................................................................................................... 7
4.2 LNAPL ............................................................................................................................................. 8
4.3 Groundwater Quality ........................................................................................................................ 8

5.0 CONCLUSIONS AND RECOMMENDATIONS ......................................................................... 9

6.0 STATEMENTS AND RECOMMENDATIONS ........................................................................... 11

Former Pantry #176 April 13, 2023
Groundwater Monitoring Report Page 1

TABLES
Table 1 UST System Information
Table 2 Adjacent Property Owner Information
Table 3 RedLab Soil Analytical Data
Table 4 Monitoring Well Construction Information
Table 5 Groundwater Elevation Data
Table 6 Select Natural Attenuation Measurements
Table 7 Groundwater Analytical Data
Table 8 Historical Groundwater Analytical Data
Table 9 Contaminant Mass Calculations (Benzene)
Table 10 Contaminant Mass Removal (Benzene)

FIGURES
Figure 1 Topographic Map
Figure 2 Site Map
Figure 3 Soil Boring Locations
Figure 4 RedLab Mobile Data
Figure 5 Geologic Cross Sections
Figure 6 Cross Sections A-A’ and B-B’
Figure 7 Groundwater Elevation Contour Map
Figure 8 Dissolved Benzene Isoconcentration
Figure 9 Other Dissolved Contaminants of Concern
Figure 10 MW-1: Dissolved Benzene Concentrations through Time versus Depth to Water
Figure 11 MW-2: Dissolved Benzene Concentrations through Time versus Depth to Water
Figure 12 MW-4: Dissolved Benzene Concentrations through Time versus Depth to Water
Figure 13 MW-5: Dissolved Benzene Concentrations through Time versus Depth to Water
Figure 14 MW-8: Dissolved Benzene Concentrations through Time versus Depth to Water
Figure 15 MW-12: Dissolved Benzene Concentrations through Time versus Depth to Water
Figure 16 MW-18: Dissolved Benzene Concentrations through Time versus Depth to Water

APPENDICES
Appendix A Boring Logs
Appendix B Historical Soil Information and Historical Geologic Cross-Sections
Appendix C Redlab Data
Appendix D Regenesis Information
Appendix E Historical Groundwater Elevation Data
Appendix F Laboratory Report and Chain-of-Custody Documents
Appendix G Contaminant Mass through Time
Former Pantry #176 April 13, 2023
Groundwater Monitoring Report Page 2

1.0 EXECUTIVE SUMMARY

Circle K Stores, Inc. (formerly The Pantry, Inc.) retained ATC Associates of North Carolina, P.C. (ATC) to
prepare a Groundwater Monitoring Report for the former Pantry #176 located at 208 Main Street Clayton,
Johnson County, North Carolina. This report documents the results of soil assessment activities and
groundwater sampling activities during December 2022.

On December 7, 2022, ATC contracted with RedLab of Wilmington, North Carolina and AmeriProbe of
Huntersville, North Carolina to conduct on-site UFV to obtain smear zone mass data, using direct push
sampling points, within the identified groundwater gross contaminant level (GCL) plume. Eight sampling
points (labelled RL-1 through RL-8) were advanced at the facility using macro-core samplers to a termination
depth of 25 to 30 feet below ground surface (bgs).

ATC personnel collected soil samples at depths of 15, 20, 25, and 30 feet, if applicable, from each of the
borings. The soil samples collected at these sampling depths were screened by RedLab onsite for BTEX
(C6-C9), GRO (C5-C10) and DRO (C10-C35). Based on the RedLab data, it appears petroleum-impacted
soil, within the dissolved GCL plume, is located at a depth range of 20 to 25 feet bgs. This calculates to a
volume of approximately 52,500 cubic feet of soil.

The above-mentioned data was submitted to Regenesis to analyze for potential injection of PersulfOx into
this area to assist in cleaning up of the smear zone soil and GCL exceedances to get the site to closure.
Additional information will be provided in a New Technology Cleanup Plan that will be prepared in the near
future.

Overall, the dissolved contaminant concentrations of concern include dissolved benzene concentrations
monitoring wells MW-4R, MW-5, MW-8, and MW-18 and dissolved 1,2-Dichloroethane concentrations in
monitoring wells MW-4R, MW-13, and MW-18. These concentrations exceed established Gross
Contaminant Levels (GCLs). As a consequence of the extensive assessment activities conducted at the
facility and adjacent properties, the horizontal and vertical extents of dissolved petroleum hydrocarbon
concentrations have been reasonably defined and are limited to the vicinity of monitoring wells MW-4R,
MW-5, MW-8, MW-12, and MW-18.

Former Pantry #176 April 13, 2023
Groundwater Monitoring Report Page 3

It appears dissolved target compound concentrations have decreased at the site since 1995 and LNAPL has
not been detected in monitoring wells associated with the release since April 2012.

In 1995, the dissolved contaminant mass at the site was estimated to cover an area approximately 27,000
square feet (ft2) resulting in:
• a calculated dissolved benzene mass of 806.7 kilograms (kg);

These calculations resulted in a total mass baseline/milestone benzene concentration of 806.7 kg.

Based on the most recent groundwater analytical data (December 2022), the dissolved benzene
contaminant mass at the site was estimated to cover an area approximately 8,000 ft2 resulting in a
calculated dissolved benzene mass of 98.4 kg. To date, the dissolved benzene mass has been reduced at
the site by approximately 88%.

Based on the results presented in this report, ATC recommends the preparation and submittal of a New
Technology Cleanup Plan.

Former Pantry #176 April 13, 2023
Groundwater Monitoring Report Page 4

2.0 SITE HISTORY AND CHARACTERIZATION
2.1 UST Owner and Operator Information
Currently, the site is an inactive gas station. One 10,000-gallon and one 8,000-gallon gasoline USTs and
their appurtenances previously operated at the facility. The UST systems were removed from the
property during April 1994. The USTs and their appurtenance were owned by Circle K Stores, Inc.
(formerly The Pantry) of Raleigh, North Carolina. Information regard each of the tanks is provided
below.

2.2 UST Information

Table 1 provides information on the former UST system. Figure 1 is a topographical map of the site and
surrounding area. Figure 2 is a site map which depicts the site and pertinent structures, including the
location of the former USTs and appurtenances.

2.3 AST Information
No ASTs were identified on the site.

2.4 Release Information
On April 14, 1994, SPATCO Environmental Services (SPATCO) removed one 8,000-gallon and one
10,000-gallon gasoline USTs, the associated piping, and the dispenser islands form the facility. Groundwater
was not encountered in the UST excavation. Due to high organic vapor analyzer (OVA) readings of soil
samples collected during UST removal activities, approximately 337 tons of soil were excavated, temporarily
stockpiled on-site, and later disposed of properly by Lee Brick and Tile Company. Analytical results of soil
samples collected from beneath the USTs, dispenser islands, and product lines indicated concentrations above
the NCDEQ reportable concentrations. These results are documented in an Underground Storage tank
Closure Report, submitted by SPATCO, on May 3, 1994.

Tank ID # Tank Capacity Last Contents Installation Date Removal Date
1 10,000 Gasoline Unknown 4/14/1994
2 8,000 Gasoline Unknown 4/14/1994
Former Pantry #176 April 13, 2023
Groundwater Monitoring Report Page 5

Due to the levels of total petroleum hydrocarbons (TPH) in the soil surrounding the former UST system,
further assessment activities were conducted. A Comprehensive Site Assessment (CSA) was initiated at the
site on August 3, 1994. On September 22, 1995, SPATCO submitted a Corrective Action Plan (CAP) which
proposed dual phase vacuum extraction (DPVE).

On March 19, 1996, the Town of Clayton requested that an additional monitoring well be installed to aid in
the delineation of a second off-site petroleum hydrocarbon plume located at the Clayton Public Works
Garage (CPWG). This site is located approximately 500 feet southeast of the former Pantry #176.
Monitoring well MW-19 was installed on June 18, 1996 in the Town of Clayton right-of-way along Second
Street.

In July 1995, Senate Bill 1317 was enacted, which suspended assessment and corrective action at Class CDE
sites. The former Pantry #176 was assigned a priority ranking of 75/E. Therefore, all work was suspended in
July 1996. As of January 2, 1998, Rule 15A NCAC 2L .0115 (the “Risk-Based Corrective Action Rule) has
been in effect. Based on criteria set forth under the “Risk-Based Corrective Action Rule”, this site is
classified as intermediate risk. Rather than install the DPVE system, the NCDEQ requested quarterly
sampling for one year.

In 2011, Circle K retained ATC Associates to continue activities at the site. Since October 2011, ATC has
conducted various phases of assessment and monitoring at the facility.

During April 2021, approximately 336.41 tons of petroleum-impacted soil were removed from the area of
former monitoring well MW-4. Laboratory analytical results of the sidewall soil samples did not detect target
compound concentrations above established Residential Maximum Soil Contaminant Concentrations
(MSCCs). Based on the laboratory analytical results, it appears soil excavation activities have effective
removed soil from the site that exceeded Residential MSCCs in the area of the former UST basin.

2.5 Site Characteristics
The facility is currently an active convenience store (Clayton Mart) and a UST system is not present at the
time of this report. Surface cover at the site consists of asphalt and concrete.

Former Pantry #176 April 13, 2023
Groundwater Monitoring Report Page 6

2.6 Regional Geology and Hydrogeology
According to the CSA Report, the soil type encountered during the installation of the monitoring wells was
described as interbedded mixtures of clay, sandy clay, and sandy clay with gravel to a depth of at least 55 feet
bgs. According to the Geologic Map of North Carolina (1985), the site is located in an area that is underlain
by terrace deposits and upland sediments principally composed of gravel, clayey sand, sand, and minor iron-
oxide cemented sandstone. The USGS 15-Minute Series Clayton, North Carolina Topographic Quadrangle
Map (Figure 1) depicts the location of the site relative to relevant surface features. The closest surface water
body appears to be an intermittent stream of the Neuse River, located approximately 400 feet northeast of the
source area. Groundwater has historically ranged from approximately 17 to 22 feet bgs.

Groundwater movement in the upper portion of the surficial aquifer appears to flow in a northeasterly
direction across the site. Based on available groundwater data, it appears there is a slight vertical head
difference between the shallow and deep monitoring wells, which suggests that a vertical exchange of
groundwater could occur between the upper and lower portions of the surficial aquifer.

The average hydraulic conductivity at the site is ranges between 0.013 and 0.13 feet per day. The shallow
groundwater flow direction was determined to be in the north-east direction across the site, and the
groundwater flow velocity ranges from 0.158 feet per year to 1.58 feet per year.

2.7 Potential Receptors
The CSA did not identified water supply wells within 1,500 feet of the source area. It appears the site and
adjacent properties are connected to the public water system that is available.

An unnamed intermittent stream of the Neuse River is located approximately 400 feet northeast of the source
area.

Adjacent property owner information is provided in Table 2.

3.0 SOIL ASSESSMENT ACTIVITIES

On December 7, 2022, ATC contracted with RedLab of Wilmington, North Carolina and AmeriProbe of
Huntersville, North Carolina to conduct on-site UFV to obtain smear zone mass data, using direct push
sampling points, within the identified groundwater gross contaminant level (GCL) plume. Eight sampling
points (labelled RL-1 through RL-8) were advanced at the facility using macro-core samplers to a termination
Former Pantry #176 April 13, 2023
Groundwater Monitoring Report Page 7

depth of 25 to 30 feet below ground surface (bgs). The approximate locations of the sampling points is
provided on Figure 3.

ATC personnel collected soil samples at depths of 15, 20, 25, and 30 feet, if applicable, from each of the
borings. The soil samples collected at these sampling depths were screened by RedLab onsite for BTEX
(C6-C9), GRO (C5-C10) and DRO (C10-C35). ATC personnel also screened each soil sample with a
photoionization detector (PID). The RedLab data, along with the PID readings, are provided in Table 3 and
depicted on Figure 4. It appears soil at this depth consists mainly of a brownish-red, with some orange
clayey silt. Boring logs are provided in Appendix A. Geologic cross-sections are provided in Figures 5 and
6. Historical soil data and cross sections are provided in Appendix B.

Based on the RedLab data, it appears petroleum-impacted soil, within the dissolved GCL plume, is located at
a depth range of 20 to 25 feet bgs. This calculates to a volume of approximately 52,500 cubic feet of soil.
The RedLab data is provided in Appendix C.

The above-mentioned data was submitted to Regenesis to analyze for potential injection of PersulfOx into
this area to assist in cleaning up of the smear zone soil and GCL exceedances to get the site to closure.
Regensis data is provided in Appendix D. Additional information will be provided in a New Technology
Cleanup Plan that will be prepared in the near future.

4.0 GROUNDWATER CHARACTERIZATION
4.1 Groundwater Levels
On December 13, 2022, ATC personnel collected groundwater levels from monitoring wells MW-1,
MW-2, MW-3, MW-4R, MW-5 through MW-15, and MW-18 through MW-21. It should be noted
monitoring well MW-16 was obstructed at 18.65 feet bgs and monitoring well MW-17A could not be
located. An oil/water interface probe was used to gauge depth-to-water and LNAPL thickness, if
encountered, from the top of each well casing. LNAPL was not measured in any of the wells gauged on
this date. Depths to water ranged from 11.25 feet bgs to 25.47 feet bgs in monitoring wells MW-19 and
MW-5, respectively.

Monitoring well construction details are summarized in Table 4 and groundwater elevation data is
included in Table 5. A groundwater elevation contour map is provided as Figure 7. Groundwater flows
Former Pantry #176 April 13, 2023
Groundwater Monitoring Report Page 8

generally in a northeasterly direction, which is consistent with historical data. Historical groundwater
elevation contour maps are provided in Appendix E.

4.2 LNAPL
Measurable LNAPL was not detected during the December 2022 sampling event.

4.3 Groundwater Quality
On December 13, 2022, groundwater samples were collected from monitoring wells MW-1, MW-2,
MW-3, MW-4R, MW-5 through MW-15, and MW-18 through MW-21. It should be noted monitoring
well MW-16 could not be sampled because it was obstructed at 18.65 feet bgs and monitoring well MW-
17 could not be located. The monitoring wells were purged prior to sampling by removing a minimum of
three well volumes of water from each well. After allowing sufficient time for recharge, a representative
groundwater sample was collected from each well using a new, disposable Teflon bailer. Upon
collection, the groundwater samples were placed into laboratory-approved containers, packed in ice, and
delivered under chain-of-custody to SGS North America (SGS) in Scott, Louisiana for analyses.
Groundwater samples were analyzed by EPA Method 6200B. Select natural attenuation measurements
are provided in Table 6.

Laboratory analytical results of the groundwater samples collected detected dissolved benzene
concentrations above its established GCL in the monitoring wells MW-4R, MW-5, MW-8, and MW-18.
Dissolved 1,2-Dichloroethane concentrations were detected above its established GCL in the groundwater
samples collected from monitoring well MW-4R, MW-13, and MW-18. Other dissolved target
compound concentrations were detected above laboratory method detection limits (MDLs) but below
respective GCLs. The laboratory analytical results for the monitoring well sampled during December
2022 are summarized in Table 7. Historical groundwater analytical data are summarized in Table 8. A
dissolved benzene isoconcentration contour map is provided as Figure 8 and other dissolved
contaminants of concern are provided as Figure 9. Dissolved benzene concentrations through time
versus depth to water for monitoring wells MW-1, MW-2, MW-4, MW-5, MW-8, MW-12, and MW-18
are provided as Figures 10 through 16, respectively. The laboratory report and chain-of-custody
documents are provided in Appendix F.

It appears dissolved target compound concentrations have decreased at the site since 1995 and LNAPL has
not been detected in monitoring wells associated with the release since April 2012.
Former Pantry #176 April 13, 2023
Groundwater Monitoring Report Page 9

In 1995, the dissolved contaminant mass at the site was estimated to cover an area approximately 27,000
square feet (ft2) resulting in:
• a calculated dissolved benzene mass of 806.7 kilograms (kg);

These calculations resulted in a total mass baseline/milestone benzene concentration of 806.7 kg.

Based on the most recent groundwater analytical data (December 2022), the dissolved benzene contaminant
mass at the site was estimated to cover an area approximately 8,000 ft2 resulting in a calculated dissolved
benzene mass of 98.4 kg. To date, the dissolved benzene mass has been reduced at the site by approximately
88%. The contaminant mass calculations are provided in Table 9 and contaminant mass removal is provided
in Table 10. Contaminant mass versus time is provided in Appendix G.

5.0 CONCLUSIONS AND RECOMMENDATIONS
ATC personnel collected soil samples at depths of 15, 20, 25, and 30 feet, if applicable, from each of the
borings. The soil samples collected at these sampling depths were screened by RedLab onsite for BTEX
(C6-C9), GRO (C5-C10) and DRO (C10-C35). Based on the RedLab data, it appears petroleum-impacted
soil, within the dissolved GCL plume, is located at a depth range of 20 to 25 feet bgs. This calculates to a
volume of approximately 52,500 cubic feet of soil.

The above-mentioned data was submitted to Regenesis to analyze for potential injection of PersulfOx into
this area to assist in cleaning up of the smear zone soil and GCL exceedances to get the site to closure.
Additional information will be provided in a New Technology Cleanup Plan that will be prepared in the near
future.

Overall, the dissolved contaminant concentrations of concern include dissolved benzene concentrations
monitoring wells MW-4R, MW-5, MW-8, and MW-18 and dissolved 1,2-Dichloroethane concentrations in
monitoring wells MW-4R, MW-13, and MW-18. These concentrations exceed established Gross
Contaminant Levels (GCLs). As a consequence of the extensive assessment activities conducted at the
facility and adjacent properties, the horizontal and vertical extents of dissolved petroleum hydrocarbon
concentrations have been reasonably defined and are limited to the vicinity of monitoring wells MW-4R,
MW-5, MW-8, MW-12, and MW-18.

Former Pantry #176 April 13, 2023
Groundwater Monitoring Report Page 10

It appears dissolved target compound concentrations have decreased at the site since 1995 and LNAPL has
not been detected in monitoring wells associated with the release since April 2012.

Based on the most recent groundwater analytical data (December 2022), the dissolved benzene
contaminant mass at the site was estimated to cover an area approximately 8,000 ft2 resulting in a
calculated dissolved benzene mass of 98.4 kg. To date, the dissolved benzene mass has been reduced at
the site by approximately 88%.

Based on the results presented in this report, ATC recommends the preparation and submittal of a New
Technology Cleanup Plan.

TABLES

TABLE 1
UST SYSTEM INFORMATION
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
UST ID
Number Product Capacity (gallons)Date
Installed
Date taken
out of Use
Date
Permanently
Closed
Was Release Associated
With UST System?
0-014691 Gasoline 8,000 8/5/1976 4/14/1994 4/13/1994 Yes
0-014691 Gasoline 10,000 8/5/1976 4/14/1994 4/13/1994 Yes
UST ID
Number Owner or Operator?Name of Owner or Operator Dates of Ownership / Operation
Circle K Stores, Inc.1/1/1986 to 4/14/1994
Address Telephone Number
0-014691 Owner/Operator
Raleigh, North Carolina 27606
1100 Situs Court, Suite 100 [phone]
TABLE 2
ADJACENT PROPERTY OWNER INFORMATION
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Property Location and Address Owner's Name and Address Zoning/Parcel Identification Number
Site
Clayton Mart Hometowne Investments, LLC B-1 (Central Business)
208 Main Street P.O. Box 133 Parcel ID #05015006
Clayton, North Carolina Clayton, North Carolina 27520 Convenience store
North of Site
Bernardo and Nosaira Gelabert B-1 (Central Business)
202 E. Main Street 128 Verde Glen Drive Parcel ID #05015009
Clayton, North Carolina Garner, North Carolina 27529 Commercial Building
North of Site
112 Church , LLC B-1 (Central Business)
112-118 N. Church Street 13200 Strickland Road Suite 114-222 Parcel ID #05015008
Clayton, North Carolina Raleigh, North Carolina 27613 Apartments
North of Site
Rex and Carol Everhart B-1 (Central Business)
110 N. Church Street 2699 Covered Bridge Road Parcel ID #05015007
Clayton, North Carolina Clatyon, NortH Carolina 27527 Residence
South of Site
Carroll Building Investments, LLC B-1 (Central Business)
218 E. Main Street 224 Percy Drive Parcel ID #05015004
Clayton, North Carolina Clayton, North Caorlina 27520 Vacant Commercial Building
East of Site
Railroad Railroad
Unaddressed
Clayton, North Carolina
West of Site
Wake Development Group, LLC B-1 (Central Business)
207 E. Main Street P.O. Box 495 Parcel ID #05015026
Clayton, North Carolina Clayton, North Carolina 27528 Parking Lot
West of Site
David and Nicole Orringer B-1 (Central Business)
201 E. Main Street 3508 Queen Ann Drive Parcel ID #05015023
Clayton, North Carolina Clayton, North Carolina 27527 Clayton Chiropractic
Notes:
1. Zoning Classifications indicate those assigned by Johnston County.
TABLE 3
REDLAB SOIL ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
BTEX (C6 - C9)GRO (C5 - C10)DRO (C10 - C35)RL-1 12/7/22 15 33.6 <0.45 <0.45 <0.45
RL-1 12/7/22 20 >15,000 <0.4 147 163.6
RL-1 12/7/22 25 >15,000 274.6 778.5 31.9
RL-1 12/7/22 30 257.4 <0.49 14.1 <0.49
RL-2 12/7/22 15 32.1 <0.46 <0.46 <0.46
RL-2 12/7/22 20 72.8 <0.44 1.7 <0.44
RL-2 12/7/22 25 82.6 <0.52 5.3 <0.52
RL-3 12/7/22 15 67.8 <0.56 <0.56 0.56
RL-3 12/7/22 20 218.9 21.7 82.9 2.9
RL-3 12/7/22 25 >15,000 <0.51 145.1 140.3
RL-3 12/7/22 30 >15,000 9.2 41.5 0.45
RL-4 12/7/22 15 44.0 <0.45 17.8 0.64
RL-4 12/7/22 20 246.4 23.2 75.2 4
RL-4 12/7/22 25 >15,000 <3.4 647.6 652
RL-4 12/7/22 30 --<0.21 14.5 8.3
RL-5 12/7/22 15 36.3 <0.54 <0.54 <0.54
RL-5 12/7/22 20 133.6 <0.27 3.8 4.6
RL-5 12/7/22 25 456.5 <4.1 803.6 769.4
RL-5 12/7/22 30 251.5 4.3 22 0.15
RL-6 12/7/22 15 114.4 <0.47 <0.47 <0.47
RL-6 12/7/22 20 206.9 <0.5 <0.5 <0.5
RL-6 12/7/22 25 >15,000 <8.8 366.1 109.5
RL-6 12/7/22 30 117 <0.64 6.2 <0.64
RL-7 12/7/22 15 204.2 <0.25 <0.25 <0.25
RL-7 12/7/22 20 228.0 <0.63 58.2 54.1
RL-7 12/7/22 25 252.2 <3 236.9 258.1
RL-7 12/7/22 30 87.9 <0.65 7.1 <0.65
RL-8 12/7/22 15 65.7 <0.28 7.7 3.3
RL-8 12/7/22 20 602.8 <5.2 1,219 1,088
RL-8 12/7/22 25 451.5 <0.43 204.8 <0.43
RL-8 12/7/22 30 >15,000 <0.45 <0.45 <0.45
--50 100
Notes:
1. Concentrations reported in milligrams per kilogram (mg/kg).
Sample
Depth
(feet)
PID
Reading
(ppm)
RedLab Mobile Data
State Action Level (mg/kg)
Sample
ID
Date
Sampled
TABLE 4
MONITORING WELL CONSTRUCTION INFORMATION
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
WELL I.D.Date Installed Well Diameter
(inches)
Screen Slot
Size (inches)
Screened
Interval
(feet)
Total Depth
(feet)
Date
Abandoned
MW-1 8/3/1994 2 0.01 10-30 30 Active
MW-2 8/3/1994 2 0.01 10-30 30 Active
MW-3 8/3/1994 2 0.01 10-30 30 Active
MW-4 8/3/1994 2 0.01 10-30 30 Destroyed
MW-4R 6/1/2021 2 0.01 10-25 25 Active
MW-5 8/3/1994 2 0.01 10-30 30 Active
MW-6 8/26/1994 2 0.01 10-30 30 Active
MW-7 8/26/1994 2 0.01 10-25 25 Active
MW-8 8/26/1994 2 0.01 10-25 25 Active
MW-9 8/26/1994 2 0.01 10-25 25 Active
MW-10 8/26/1994 2 0.01 10-25 25 Active
MW-11 8/26/1994 2 0.01 10-25 25 Active
MW-12 8/26/1994 2 0.01 10-25 25 Active
MW-13*8/26/1994 2 0.01 40-45 45 Active
MW-14*7/10/1995 2 0.01 50-55 55 Active
MW-15 7/11/1995 2 0.01 10-25 25 Active
MW-16 7/12/1995 2 0.01 10-25 25 Active
MW-17 7/12/1995 2 0.01 15-30 30 9/1/1995
MW-17A 2/16/2001 2 0.01 10-30 30 Active
MW-18 12/12/1995 2 0.01 15-30 30 Active
MW-19 6/18/1996 2 0.01 10-25 25 Active
MW-20 9/4/2013 2 0.01 5-20 20 Active
MW-21 9/4/2013 2 0.01 7-27 27 Active
1. * = Type III Monitoring Well
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
8/5/1994 --21.02 --77.42
11/2/1994 --20.91 --77.53
7/18/1995 --18.01 --80.43
12/21/1995 --17.98 --80.46
5/1/1996 --17.63 --80.81
2/17/1999 --20.80 --77.64
2/8/2000 --19.57 --78.87
5/22/2000 --19.71 --78.73
8/22/2000 --20.00 --78.44
11/9/2000 --19.99 --78.45
10/19/2011 22.80 22.82 0.02 75.64
4/12/2012 Sheen 21.51 --76.93
10/13/2012 --21.17 --77.27
9/17/2013 --19.39 --79.05
10/22/2015 --20.33 --78.11
4/18/2016 --18.53 --79.91
10/19/2016 --19.92 --78.52
5/2/2017
11/7/2017
11/30/2018 --18.66 --79.78
5/14/2019 --17.27 --81.17
11/26/2019 --22.21 --76.23
5/13/2020 --19.18 --79.26
8/16/2021 --20.29 --78.15
11/23/2021 --22.24 --76.20
5/3/2022
12/13/2022 --23.56 --74.88
98.44MW-1
Well Not Measured
Well Not Measured
Well Not Measured
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --22.22 --76.89
11/2/1994 --22.19 --76.92
7/18/1995 --19.06 --80.05
12/21/1995 --19.04 --80.07
5/1/1996 --18.69 --80.42
2/17/1999 --22.00 --77.11
2/8/2000 --20.69 --78.42
5/22/2000 --20.85 --78.26
8/22/2000 --21.11 --78.00
11/9/2000 --21.09 --78.02
10/19/2011 24.14 24.16 0.02 74.97
4/12/2012 Sheen 22.88 --76.23
10/13/2012 --22.35 --76.76
9/17/2013 --20.53 --78.58
10/22/2015 --21.50 --77.61
4/18/2016 --19.66 --79.45
10/19/2016 --21.02 --78.09
5/2/2017
11/7/2017
11/30/2018 --19.80 --79.31
5/14/2019 --18.31 --80.80
11/26/2019 --23.44 --75.67
5/13/2020 --20.34 --78.77
8/16/2021 --21.45 --77.66
11/23/2021 --23.41 --75.70
5/3/2022 --21.73 --77.38
12/13/2022 --24.76 --74.35
99.11MW-2
Well Not Measured
Well Not Measured
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --20.29 --77.97
11/2/1994 --19.77 --78.49
7/18/1995 --17.30 --80.96
12/21/1995 --17.53 --80.73
5/1/1996 --17.21 --81.05
2/17/1999 --20.10 --78.16
2/8/2000 --18.86 --79.40
5/22/2000 --19.19 --79.07
8/22/2000 --19.30 --78.96
11/9/2000 --19.48 --78.78
10/19/2011 --22.98 --75.28
4/12/2012 --19.50 --78.76
10/13/2012 --20.39 --77.87
9/17/2013 --18.93 --79.33
10/22/2015 --20.15 --78.11
4/18/2016 --17.98 --80.28
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 --21.81 --76.45
5/3/2022
12/13/2022 --22.86 --75.40
Well Not Measured
Well Not Measured
Well Not Measured
MW-3
Well Not Measured
Well Not Measured
98.26
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --21.25 --77.59
11/2/1994 --21.30 --77.54
7/18/1995 --18.39 --80.45
12/21/1995 --18.50 --80.34
5/1/1996 --18.19 --80.65
2/17/1999 --21.11 --77.73
2/8/2000 --19.95 --78.89
5/22/2000 --20.21 --78.63
8/22/2000 --20.25 --78.59
11/9/2000 --20.43 --78.41
10/19/2011 23.05 23.25 0.20 75.74
4/12/2012 --21.91 --76.93
10/13/2012 --21.80 --77.04
9/18/2013 --19.89 --78.95
10/22/2015 --20.72 --78.12
4/18/2016
10/19/2016 --20.35 --78.49
5/2/2017 --20.62 --78.22
11/7/2017 --22.02 --76.82
11/30/2018 --19.28 --79.56
5/14/2019 --17.86 --80.98
11/26/2019 --22.38 --76.46
5/13/2020 --19.68 --79.16
8/16/2021 --21.48 --78.03
11/23/2021 --23.46 --76.05
5/3/2022 --22.77 --76.74
12/13/2022 --24.73 --74.78
Well Not Measured
MW-4
MW-4R 99.51
Well Destroyed during Soil Excavation Activities
98.84
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --22.60 --77.31
11/2/1994 --22.31 --77.60
7/18/1995 --19.47 --80.44
12/21/1995 --19.74 --80.17
5/1/1996 --19.38 --80.53
2/17/1999 --22.30 --77.61
2/8/2000 --21.03 --78.88
5/22/2000 --21.56 --78.35
8/22/2000 --21.41 --78.50
11/9/2000 --21.77 --78.14
10/19/2011
4/12/2012 --23.24 --76.67
10/13/2012 --22.92 --76.99
9/18/2013 --21.33 --78.58
10/21/2015 --22.03 --77.88
4/18/2016 --20.52 --79.39
10/19/2016 --21.75 --78.16
5/2/2017 --22.09 --77.82
11/7/2017 --23.53 --76.38
11/30/2018 --20.45 --79.46
5/14/2019 --19.37 --80.54
11/26/2019 --24.19 --75.72
5/13/2020 --21.19 --78.72
8/16/2021 --22.31 --77.60
11/23/2021 --24.29 --75.62
5/3/2022 --22.68 --77.23
12/13/2022 --25.47 --74.44
Unable to Access Well
MW-5 99.91
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --22.59 --76.49
11/2/1994 --22.68 --76.40
7/18/1995 --19.33 --79.75
12/21/1995 --19.67 --79.41
5/1/1996 --18.97 --80.11
2/17/1999 --22.74 --76.34
2/8/2000 --21.04 --78.04
5/22/2000 --21.16 --77.92
8/22/2000 --22.00 --77.08
11/9/2000 --21.74 --77.34
10/19/2011 --24.83 --74.25
4/12/2012 --23.70 --75.38
10/13/2012 --23.11 --75.97
9/17/2013 --21.24 --77.84
10/21/2015 --22.11 --76.97
4/18/2016 --20.21 --78.87
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 --23.82 --75.26
5/3/2022
12/13/2022 --25.22 --73.86
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
MW-6 99.08
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --20.74 --78.17
11/2/1994 --20.39 --78.52
7/18/1995 --18.02 --80.89
12/21/1995 --18.21 --80.70
5/1/1996 --17.95 --80.96
2/17/1999 --20.65 --78.26
2/8/2000 --19.48 --79.43
5/22/2000 --19.86 --79.05
8/22/2000 --19.85 --79.06
11/9/2000 --20.13 --78.78
10/19/2011 22.67 22.78 0.11 76.21
4/12/2012 --21.17 --77.74
10/13/2012 --21.12 --77.79
9/18/2013 --19.67 --79.24
10/22/2015 --20.38 --78.53
4/18/2016 --18.68 --80.23
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 --22.45 --76.46
5/3/2022
12/13/2022 --23.47 --75.44
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
98.91
Well Not Measured
MW-7
Well Not Measured
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --21.56 --77.83
11/2/1994 --21.58 --77.81
7/18/1995 --18.74 --80.65
12/21/1995 --18.88 --80.51
5/1/1996 --18.61 --80.78
2/17/1999 --21.55 --77.84
2/8/2000 20.17 20.54 0.37 79.13
5/22/2000 20.47 20.89 0.42 78.82
8/22/2000 20.43 20.76 0.33 78.88
11/9/2000 --20.82 --78.57
10/19/2011
4/12/2012 --22.27 --77.12
10/13/2012 --22.05 --77.34
9/18/2013 --20.38 --79.01
10/21/2015 --21.13 --78.26
4/18/2016 --19.41 --79.98
10/19/2016 --21.06 --78.33
5/2/2017 --21.61 --77.78
11/7/2017 --23.10 --76.29
11/30/2018 --19.71 --79.68
5/14/2019 --18.76 --80.63
11/26/2019 --23.51 --75.88
5/13/2020 --20.64 --78.75
8/16/2021 --21.43 --77.96
11/23/2021 --23.27 --76.12
5/3/2022 --21.81 --77.58
12/13/2022 --24.35 --75.04
Unable to Access Well
99.39MW-8
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --20.15 --77.46
11/2/1994 --20.18 --77.43
7/18/1995 --16.85 --80.76
12/21/1995 --17.13 --80.48
5/1/1996 --16.67 --80.94
2/17/1999 --19.85 --77.76
2/8/2000 --18.87 --78.74
5/22/2000 --18.63 --78.98
8/22/2000 --19.13 --78.48
11/9/2000 --19.00 --78.61
10/19/2011 --21.88 --75.73
4/12/2012 --20.68 --76.93
10/13/2012 --20.32 --77.29
9/17/2013 --18.50 --79.11
10/22/2015 --19.40 --78.21
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 --21.14 --76.47
5/3/2022
12/13/2022 --22.36 --75.25
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
97.61
Well Not Measured
Well Not Measured
MW-9
Well Not Measured
Well Not Measured
Well Not Measured
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --21.59 --76.21
11/2/1994 --21.84 --75.96
7/18/1995 --18.29 --79.51
12/21/1995 --18.98 --78.82
5/1/1996 --18.11 --79.69
2/17/1999 --21.92 --75.88
2/8/2000 --20.12 --77.68
5/22/2000 --20.65 --77.15
8/22/2000 --21.07 --76.73
11/9/2000 --21.30 --76.50
10/19/2011 --24.51 --73.29
4/12/2012 --22.81 --74.99
10/13/2012 --22.22 --75.58
9/17/2013 --20.96 --76.84
10/21/2015 --21.73 --76.07
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 --23.69 --74.11
5/3/2022
12/13/2022 --24.83 --72.97
Well Not Measured
MW-10
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
97.80
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --19.51 --76.67
11/2/1994 --19.78 --76.40
7/18/1995 --16.20 --79.98
12/21/1995 --17.12 --79.06
5/1/1996 --16.13 --80.05
2/17/1999 --20.60 --75.58
2/8/2000 --17.62 --78.56
5/22/2000 --19.17 --77.01
8/22/2000 --18.85 --77.33
11/9/2000 --19.56 --76.62
10/19/2011 --22.68 --73.50
4/12/2012 --20.80 --75.38
10/13/2012 --19.65 --76.53
9/17/2013 --19.18 --77.00
10/21/2015 --19.53 --76.65
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 --21.87 --74.31
5/3/2022
12/13/2022 --22.69 --73.49
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
MW-11 96.18
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --20.28 --77.01
11/2/1994 --20.50 --76.79
7/18/1995 --17.00 --80.29
12/21/1995 --17.75 --79.54
5/1/1996 --17.10 --80.19
2/17/1999 --20.21 --77.08
2/8/2000 --18.52 --78.77
5/22/2000 --19.84 --77.45
8/22/2000 --19.44 --77.85
11/9/2000 --20.10 --77.19
10/19/2011 --23.25 --74.04
4/12/2012 --21.36 --75.93
10/13/2012 --20.62 --76.67
9/17/2013 --19.57 --77.72
10/21/2015 --19.98 --77.31
4/18/2016 --18.77 --78.52
10/19/2016 --19.51 --77.78
5/2/2017 --21.82 --75.47
11/7/2017 --21.82 --75.47
11/30/2018 --18.59 --78.70
5/14/2019 --17.59 --79.70
11/26/2019 --19.35 --77.94
5/13/2020 --22.21 --75.08
8/16/2021 --20.46 --76.83
11/23/2021 --22.61 --74.68
5/3/2022 --20.66 --76.63
12/13/2022 --23.61 --73.68
97.29MW-12
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
8/5/1994 --22.35 --77.30
11/2/1994 --22.60 --77.05
7/18/1995 --19.39 --80.26
12/21/1995 --19.93 --79.72
5/1/1996 --19.64 --80.01
2/17/1999 --21.68 --77.97
2/8/2000
5/22/2000 --22.73 --76.92
8/22/2000 --22.81 --76.84
11/9/2000 --21.96 --77.69
10/19/2011 --22.89 --76.76
4/12/2012 --23.42 --76.23
10/13/2012 --22.78 --76.87
9/18/2013 --21.56 --78.09
10/21/2015 --22.10 --77.55
4/18/2016 --19.89 --79.76
10/19/2016 --21.37 --78.28
5/2/2017
11/7/2017
11/30/2018 --20.71 --78.94
5/14/2019 --19.81 --79.84
11/26/2019 --23.90 --75.75
5/13/2020 --21.30 --78.35
8/16/2021 --22.37 --77.28
11/23/2021 --24.29 --75.36
5/3/2022 --22.65 --77.00
12/13/2022 --24.96 --74.69
Could Not Locate
Well Not Measured
Well Not Measured
MW-13 99.65
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
7/18/1995 --17.54 --79.78
12/21/1995 --18.49 --78.83
5/1/1996 --17.41 --79.91
2/17/1999 --20.75 --76.57
2/8/2000 --18.41 --78.91
5/22/2000 --20.41 --76.91
8/22/2000 --19.93 --77.22
11/9/2000 --20.62 --76.53
10/19/2011 --23.43 --73.72
4/12/2012 --21.63 --75.52
10/13/2012 --20.85 --76.30
9/17/2013 --20.21 --76.94
10/21/2015 --20.42 --76.73
4/18/2016 --19.20 --77.95
10/19/2016 --19.50 --77.65
5/2/2017
11/7/2017
11/30/2018 --18.70 --78.45
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 --20.51 --76.81
5/3/2022
12/13/2022 --22.72 --74.60
Well Not Measured
97.32
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
MW-14
Well Not Measured
Well Not Measured
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
7/18/1995 --17.34 --79.73
12/21/1995 --18.57 --78.50
5/1/1996 --17.00 --80.07
2/17/1999 --20.77 --76.30
2/8/2000 --18.07 --79.00
5/22/2000 --20.75 --76.32
8/22/2000 --20.16 --76.91
11/9/2000 --21.18 --75.89
10/19/2011 --24.28 --72.79
4/12/2012 --21.87 --75.20
10/13/2012 --20.66 --76.41
9/18/2013
10/21/2015
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/13/2020
8/16/2021
11/23/2021
5/3/2022
12/13/2022 --21.70 --75.37
Well Damaged - Could Not Be Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Damaged - Could Not Be Measured
Well Not Measured97.07MW-15
Well Not Measured
Well Not Measured
Well Damaged - Could Not Be Measured
Well Not Measured
Well Not Measured
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
7/18/1995 --17.02 --80.79
12/21/1995 --17.77 --80.04
5/1/1996 --17.21 --80.60
2/17/1999 --20.20 --77.61
2/8/2000 --18.72 --79.09
5/22/2000 --19.83 --77.98
8/22/2000 --19.41 --78.40
11/9/2000 --20.08 --77.73
10/19/2011
4/12/2012 21.25 21.46 0.21 76.51
10/13/2012 --20.71 --77.10
9/18/2013 --19.53 --78.28
10/21/2015
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018 --18.56 --79.25
5/14/2019 --17.78 --80.03
11/26/2019
5/13/2020 --19.57 --78.24
8/16/2021
11/23/2021 --18.39 --79.42
5/3/2022
12/13/2022
Well Dry
Well Not Measured - Obstructed at 18.65 ft
Well Not Measured
Well Not Measured
Well Damaged - Could Not Be Measured
Well Not Measured
Well Not Measured
97.81
Well Not Measured
Could Not Locate
Well Dry
MW-16
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
7/18/1995 --15.41 --81.70
9/1/1995
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021
5/3/2022
12/13/2022
12/21/1995 --19.48 --80.25
5/1/1996 --19.16 --80.57
2/17/1999 --22.10 --77.63
2/8/2000 --20.83 --78.90
5/22/2000 --21.26 --78.47
8/22/2000 --20.15 --79.58
11/9/2000 --21.48 --78.25
10/19/2011 --24.62 --75.11
4/12/2012 --23.05 --76.68
10/13/2012 --22.69 --77.04
9/18/2013 --21.04 --78.69
10/21/2015 --22.13 --77.60
4/18/2016 --20.45 --79.28
10/19/2016 --21.60 --78.13
5/2/2017 --22.01 --77.72
11/7/2017 --23.28 --76.45
11/30/2018 --20.18 --79.55
5/14/2019 --18.05 --81.68
11/26/2019 --23.46 --76.27
5/13/2020 --20.91 --78.82
8/16/2021 --22.02 --77.71
11/23/2021 --23.98 --75.75
5/3/2022 --22.56 --77.17
12/13/2022 --25.15 --74.58
Well Could Not Be Located
Well Could Not Be Located
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Abandoned97.11
Well Not Measured
99.73
Well Not Measured
Well Not Measured
MW-18
MW-17A
MW-17
Well Could Not Be Located
TABLE 5
GROUNDWATER ELEVATION DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Well Date
Top of
Casing
Elevation
(feet)
Depth to
LNAPL
(feet)
Depth to
Groundwater
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)
98.44MW-1
2/17/1999 --10.58 --NS
2/8/2000 --11.46 --NS
5/22/2000 --11.69 --NS
8/22/2000 --8.31 --NS
11/9/2000 --8.93 --NS
10/19/2011
4/12/2012 --9.71 --NS
10/13/2012 --9.52 --NS
9/18/2013 8.79 NS
10/21/2015 --8.68 --NS
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 --10.75 --NS
5/3/2022
12/13/2022 --11.25 --NS
9/17/2013 --15.13 --NS
10/21/2015 --14.62 --NS
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 --17.18 --NS
5/3/2022
12/13/2022 --17.88 --NS
9/18/2013 --15.12 --NS
10/21/2015 --15.12 --NS
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 --17.16 --NS
5/3/2022
12/13/2022 --17.76 --NS
1. NS= Not Surveyed
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
NS
Well Could Not Be Located
Well Not Measured
Well Not Measured
NS
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
MW-20
NS Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Could Not Be Located
Well Not Measured
Well Not Measured
Well Not Measured
2. Corrected GW Elev.= (GW Elev. + LNAPL Thickness*0.76))
Unable to Locate
MW-21
MW-19
TABLE 6
SELECT NATURAL ATTENUATION MEASUREMENTS

FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Monitoring
Well ID Date pH (unitless)
Dissolved
Oxygen
(mg/L)
Specific
Conductivity
(ms/cm2)
Temperature
(Celcius)ORP (mV)
11/30/2018 5.51 0.60 0.227 22.1 53.6
5/14/2019 5.97 1.89 0.195 21.66 46.4
11/26/2019 6.02 0.06 0.173 21.69 68.2
5/13/2020 5.96 1.91 0.195 21.65 44.6
8/16/2021 5.26 1.14 0.196 21.62 208.7
11/23/2021 6.49 0.86 0.179 20.63 136.5
5/3/2022
12/13/2022
11/30/2018 5.91 0.78 0.330 22.3 1.2
5/14/2019 5.82 0.37 0.264 21.43 8.0
11/26/2019 6.01 0.08 0.212 21.31 77.5
5/13/2020 5.81 0.41 0.263 21.44 8.3
8/16/2021 5.43 0.96 0.273 21.39 177.9
11/23/2021 6.69 2.87 0.201 197.72 88.5
5/3/2022 6.56 2.12 0.274 21.80 126.2
12/13/2022
11/23/2021 6.45 0.93 0.193 20.17 165.3
5/3/2022
12/13/2022 4.59 1.08 0.092 15.6 154.2
8/16/2021 6.41 2.61 0.112 21.70 111.2
11/23/2021 6.59 2.38 0.094 17.70 188.0
5/3/2022 6.53 2.19 0.083 20.67 154.2
12/13/2022
MW-4R
MW-3
Well Not Measured - Strong Petro Odor
MW-1
Well Not Measured
Well Not Measured - Strong Petro Odor
Well Not Measured
Well Not Measured - Strong Petro Odor
MW-2
TABLE 6
SELECT NATURAL ATTENUATION MEASUREMENTS

FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Monitoring
Well ID Date pH (unitless)
Dissolved
Oxygen
(mg/L)
Specific
Conductivity
(ms/cm2)
Temperature
(Celcius)ORP (mV)
MW-1
11/30/2018 5.59 0.59 0.176 18.6 101.7
5/14/2019 5.90 0.16 0.132 18.44 76.7
11/26/2019 5.70 0.18 0.135 19.03 129.2
5/13/2020 5.93 0.21 0.130 18.43 77.1
8/16/2021 5.34 1.32 0.131 19.28 195.3
11/23/2021 6.44 1.38 0.120 17.72 211.9
5/3/2022 6.20 0.98 0.126 19.40 175.5
12/13/2022
11/23/2021 6.61 2.92 0.183 20.12 102.1
5/3/2022
12/13/2022 5.59 1.52 0.205 16.1 79.4
11/23/2021 6.98 1.08 0.198 20.03 154.9
5/3/2022
12/13/2022
11/30/2018 5.21 1.27 0.213 17.5 207.9
5/14/2019 5.13 0.32 0.084 18.95 147.3
11/26/2019 6.43 1.00 0.142 19.68 40.2
5/13/2020 5.21 0.43 0.080 19.01 140.3
8/16/2021 5.69 1.90 0.090 19.75 221.4
11/23/2021 6.42 0.94 0.069 19.25 175.3
5/3/2022 6.04 1.11 0.078 19.62 202.4
12/13/2022
11/23/2021 6.52 2.89 0.218 21.30 146.2
5/3/2022
12/13/2022 4.82 1.16 0.159 17.3 175.0
Well Not Measured - Strong Petro Odor
Well Not Measured
Well Not Measured
Well Not Measured - Strong Petro Odor
Well Not MeasuredMW-9
Well Not Measured - Strong Petro Odor
MW-5
MW-8
MW-6
MW-7
TABLE 6
SELECT NATURAL ATTENUATION MEASUREMENTS

FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Monitoring
Well ID Date pH (unitless)
Dissolved
Oxygen
(mg/L)
Specific
Conductivity
(ms/cm2)
Temperature
(Celcius)ORP (mV)
MW-1
11/23/2021 6.41 2.54 0.080 18.73 190.9
5/3/2022
12/13/2022
11/23/2021 6.86 1.16 0.172 17.20 37.5
5/3/2022
12/13/2022 5.64 2.07 0.166 13.8 30.6
11/30/2018 6.54 0.59 1.140 21.0 -99.3
5/14/2019 5.98 0.20 0.836 17.53 31.9
11/26/2019 6.31 0.11 0.763 19.80 -37.3
5/13/2020 5.99 0.25 0.913 18.01 -32.1
8/16/2021 5.72 1.02 0.745 19.30 118.2
11/23/2021 6.60 1.10 0.745 19.06 165.2
5/3/2022 5.75 0.88 0.812 18.83 169.7
12/13/2022
11/30/2018 6.46 1.29 0.399 18.6 1.6
5/14/2019 6.25 3.97 0.150 18.89 43.8
11/26/2019 6.00 0.04 0.276 18.64 25.9
5/13/2020 6.23 3.91 0.201 18.87 48.9
8/16/2021 6.13 1.15 0.332 18.94 96.3
11/23/2021 6.53 1.03 0.466 18.68 175.9
5/3/2022 5.81 0.96 0.426 19.22 168.1
12/13/2022 6.23 2.24 0.378 13.7 132.1
Well Not Measured
Well Not Measured - Strong Petro Odor
Well Not Measured
MW-13
MW-10
MW-11
MW-12
Well Not Measured - Not Enough Water
TABLE 6
SELECT NATURAL ATTENUATION MEASUREMENTS

FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Monitoring
Well ID Date pH (unitless)
Dissolved
Oxygen
(mg/L)
Specific
Conductivity
(ms/cm2)
Temperature
(Celcius)ORP (mV)
MW-1
11/30/2018 8.51 1.99 0.598 20.0 -92.6
5/14/2019
11/26/2019
5/13/2020
11/23/2021 6.71 3.25 1.085 18.30 101.7
5/3/2022
12/13/2022 9.54 3.68 0.404 15.2 171.6
11/23/2021
5/3/2022
12/13/2022 5.60 1.94 0.216 16.8 170.1
11/30/2018 6.44 0.99 0.508 19.1 -75.1
5/14/2019 5.83 0.43 0.639 18.83 73.1
11/26/2019
5/13/2020 5.81 0.51 0.601 18.80 75.3
11/23/2021
5/3/2022
12/13/2022
11/23/2021
5/3/2022
12/13/2022
Well Not Measured
Well Not Measured
Well Dry
Well Not Measured
Well Could Not Be Located
Well Could Not Be Located
MW-16
MW-17A
Well Damaged - Could Not Be Measured
Well Not Measured
Well Could Not Be Measured - Obstructed at 18.65 feet
MW-15
MW-14
Well Damaged - Could Not Be Measured
Well Not Measured - Not Enough Water
Well Not Measured
Well Not Measured
TABLE 6
SELECT NATURAL ATTENUATION MEASUREMENTS

FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Monitoring
Well ID Date pH (unitless)
Dissolved
Oxygen
(mg/L)
Specific
Conductivity
(ms/cm2)
Temperature
(Celcius)ORP (mV)
MW-1
11/30/2018 5.28 0.59 0.157 18.3 208.2
5/14/2019 5.47 0.11 0.122 19.29 143.6
11/26/2019 5.77 0.53 0.075 18.96 133.5
5/13/2020 5.51 0.23 0.121 19.29 144.8
8/16/2021 5.97 1.21 0.094 19.78 164.3
11/23/2021 6.47 2.58 0.085 18.7 201.2
5/3/2022 6.14 0.94 0.092 19.65 203.9
12/13/2022
11/23/2021 6.28 2.49 0.129 21.28 196.8
5/3/2022
12/13/2022 3.88 4.58 0.107 19.2 391.4
11/23/2021 7.09 2.34 0.173 18.10 139.7
5/3/2022
12/13/2022 4.79 2.18 0.063 16.2 198.0
11/23/2021 6.21 0.69 0.115 22.07 198.6
5/3/2022
12/13/2022 3.90 2.13 0.099 20.6 426.5
Well Not Measured
Well Not Measured
Well Not Measured
MW-20
MW-21
Well Not Measured - Strong Petro Odor
MW-19
MW-18
TABLE 7
GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
WELL I.D.DATE
SAMPLED
BenzeneTolueneEthylbenzeneTotal XylenesTotal BTEXMTBEIsopropyl etherNaphthaleneAcetoneIsopropylbenzeneBromodichloromethaneChloroform2-Hexanonesec-Butylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1,2-Dichloroethane1,2-DibromoethaneStyrenen-PropylbenzeneMW-1 12/13/2022 107 14,200 1,770 9,900 25,977 <100 <100 597 <2,000 40.1J <100 <100 225 <100 1,050 239 <40 <100 <100 106
MW-2 12/13/2022 4,230 17,900 1,680 10,600 34,410 <100 59.7J 751 955J 43.7J <100 <100 240 <100 1,410 349 <40 <100 104 132
MW-3 12/13/2022 <25 1,410 663 4,090 6,163 <25 <25 564 326J 11.1J <25 <25 <50 <25 873 221 <10 <25 <25 77.9
MW-4R 12/13/2022 15,700 22,500 978 5,320 44,498 462 3,400 281 633 13.4J <25 <25 <50 21.8J 401 101 945 <25 46.1 35.7
MW-5 12/13/2022 5,790 19,200 889 5,420 31,299 <100 98.5J 842 <2,000 <100 <100 <100 <200 <100 957 248 42.3 <100 67.6J 88.4J
MW-6 12/13/2022 66 3.2J 464 264 797.2J <5.0 <5.0 475 246 57.7 <5.0 <5.0 <10 <5.0 859 515 <2.0 <5.0 <5.0 227
MW-7 12/13/2022 <50 7,080 2,340 14,900 157,284 <50 <50 1,030 1,110 49.9J <50 <50 <100 <50 1,860 488 <20 <50 107 168
MW-8 12/13/2022 12,300 26,200 2,280 14,000 54,780 <100 821 701 1,040J 38.5J <100 <100 <200 <100 1,180 292 117 <100 221 106
MW-9 12/13/2022 <0.50 0.33J <0.50 <0.50 0.33J <0.50 <0.50 <0.50 60.2 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.20 <0.50 <0.50 <0.50
MW-10 12/13/2022 0.30J 2.7 0.77 3.9 7.67J <0.50 <0.50 0.33J 7.2J <0.50 <0.50 <0.50 <1.0 <0.50 2.9 0.85 <0.20 <0.50 <0.50 0.42J
MW-11 12/13/2022 <0.50 4.0 3.3 4.8 12.1 <0.50 <0.50 3.0 180 6.1 <0.50 <0.50 <1.0 2.5 123 31.6 <0.20 <0.50 <0.50 33.1
MW-12 12/13/2022 3,710 12,600 1,470 8,450 26,230 <100 207 524 <2,000 <100 <100 <100 <200 <100 887 219 <40 <100 109 75.2J
MW-13 12/13/2022 4,250 185 196 381 5,012 1,260 2,580 203 <500 8.2J <25 <25 <50 <25 63.8 26.1 781 <25 <25 <25
MW-14 12/13/2022 805 33.1 9.8 224 1,071.9 <0.50 96.1 53.9 74.5 4.4 0.30J 5.0 <1.0 0.18J 5.9 <0.50 6.8 2.9 <0.50 0.68
MW-15 12/13/2022 0.30J 596 1,380E 1,480 3456.3J <0.50 <0.50 822 293 27.5 <0.50 <0.50 <1.0 <0.50 861 297 <0.20 <0.50 20.2 86.2
MW-16 12/13/2022
MW-17A 12/13/2022
MW-18 12/13/2022 14,500 28,200 1,370 8,020 52,090 1,000 2,380 1,410 <5,000 <250 <250 <250 <500 <250 1,200 342 674 <250 <250 <250
MW-19 12/13/2022 <0.50 <0.50 <0.50 <0.50 <2.00 <0.50 <0.50 0.30J <10 <0.50 <0.50 0.35J <1.0 <0.50 <0.50 <0.50 <0.20 <0.50 <0.50 <0.50
MW-20 12/13/2022 <0.50 <0.50 <0.50 <0.50 <2.00 <0.50 <0.50 <0.50 <10 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.20 <0.50 <0.50 <0.50
MW-21 12/13/2022 <0.50 <0.50 <0.50 <0.50 <2.00 <0.50 <0.50 <0.50 <10 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.20 <0.50 <0.50 <0.50
1 600 600 500 NE 20 70 6 6,000 70 NE 70 40 70 400 400 0.4 0.02 70 70
5,000 260,000 84,500 85,500 NE 20,000 70,000 6,000 6,000,000 25,000 NE 70,000 40,000 8,800 28,500 25,000 400 50 70,000 30,000
Notes:
1. "<" or ND = None detected above method detection limit.
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ.
4. NE = Not established.
5. MTBE = Methyl tertiary butyl ether
6. Values in BOLD indicate levels above GCLs.
7. All concentrations in micrograms per liter (ug/L).
8. J denotes compound concentration estimated by project laboratory.
9. E denotes value exceeds calibration range.\
GCL
2L GW Standard
Analytical Method:EPA METHOD 6200B
Well Could Not Be Sampled
Well Could Not Be Located
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
8/5/1994 8,670 15,000 1,660 8,710 BDL --
7/18/1995 14,400 53,000 2,910 17,100 <5,000 --
12/21/1995 13,582 39,100 2,080 10,900 <1,000 --
5/1/1996 7,650 25,700 1,840 9,920 179 --
2/17/1999 8,100 29,000 2,400 11,700 <100 --
2/8/2000 4,600 25,000 2,100 9,800 BDL --
5/22/2000 8,000 32,000 3,000 16,300 140 --
8/22/2000 9,300 26,000 3,000 15,800 110 --
11/9/2000 7,100 29,000 2,300 12,300 <220 --
10/19/2011
4/12/2012 770 18,000 1,700 9,100 <20 720
10/14/2012 1,100 27,000 2,600 14,500 80 1,100
9/17/2013 840 13,000 1,600 9,200 21 740
10/22/2015 592 22,900 2,480 13,680 46.1J 949
4/18/2016 670 12,000 1,800 10,000 150 1,000
10/19/2016 520 21,000 2,400 15,600 34J 730
5/2/2017
11/7/2017
11/30/2018 388 9,770 1,500 8,930 <100 915
5/14/2019 231 8,210 1,140 6,550 106 723
11/26/2019 255 18,600 1,660 7,780 <50 64.7
5/13/2020 279 11,300 1,890 10,700 52.3 941
8/16/2021 237 14,900 2,270 12,200 22.2J 830.0
11/23/2021 123 10,500 1,220 7,300 <100 725
5/3/2022
12/13/2022 107 14,200 1,770 9,900 <100 597
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. Values in BOLD indicate levels above GCLs.
5. MTBE = Methyl tertiary butyl ether
6. All concentrations in micrograms per liter (ug/L)
7. J values denotes estimated concentration by the laboratory.
Well Not Sampled
EPA METHOD 6200B
Not Sampled - LNAPLTotal XylenesNaphthaleneBenzeneEthylbenzeneTolueneWell Not SampledWellAnalytical Method:MTBEDate SampledWell Not Sampled
MW-1
2L GW Standard
GCL
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/5/1994 9,000 25,000 2,200 11,000 BDL --
7/18/1995 8,350 25,700 1,100 7,010 <5,000 --
12/21/1995 9,100 49,800 2,780 12,300 <2,500 --
5/1/1996 10,800 25,000 2,690 15,500 161 --
2/17/1999 11,000 31,000 2,200 12,400 <10 --
2/8/2000 5,200 25,000 2,000 8,900 BDL --
5/22/2000 7,200 28,000 2,000 11,200 <500 --
8/22/2000 10,000 27,000 2,900 14,700 <100 --
11/9/2000 8,400 30,000 2,500 12,800 <220 --
10/19/2011
4/12/2012 6,400 17,000 1,400 8,500 <20 950
10/14/2012 8,200 30,000 2,100 13,700 <10 1,100
9/17/2013 2,300 9,500 840 7,600 <20 610
10/22/2015 4,100 23,000 1,990 12,990 <12.5 966
4/18/2016 2,500 13,000 1,300 11,400 <100 1,000
10/19/2016 4,500 27,000 2,300 14,700 <50 760
5/2/2017
11/7/2017
11/30/2018 2,570 9,680 1,170 8,950 <100 881
5/14/2019 1,220 4,880 739 5,700 <25 539
11/26/2019 4,220 18,800 1,430 5,950 <100 <100
5/13/2020 1,850 7,990 1,150 7,840 <100 605
8/16/2021 4,080 16,700 2,380 14,000 <100 65.2J
11/23/2021 3,350 15,300 1,620 10,600 <100 782
5/3/2022 4,200 20,100 1,960 11,500 25.8 787
12/13/2022 4,230 17,900 1,680 10,600 <100 751
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. Values in BOLD indicate levels above GCLs.
5. MTBE = Methyl tertiary butyl ether
6. All concentrations in micrograms per liter (ug/L)
Well Not Sampled
Well Not Sampled
Not Sampled - LNAPL
2L GW Standard
GCL
MW-2
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/5/1994 14,200 23,450 1,810 9,370 BDL --
7/18/1995 7,590 13,800 BDL 1,490 <5,000 --
12/21/1995 9,640 29,000 1,160 7,080 <2,500 --
5/1/1996 9,520 24,900 1,580 9,200 23.4 --
2/17/1999 7,300 81,000 2,200 11,200 200 --
2/8/2000 5,000 27,000 1,800 10,300 BDL --
5/22/2000 6,500 34,000 2,900 15,000 <100 --
8/22/2000 5,200 25,000 2,800 14,600 <100 --
11/9/2000 4,100 29,000 2,000 11,700 <220 --
10/19/2011 140 15,000 1,400 7,900 <20 710
4/12/2012 97 14,000 1,500 8,400 <20 640
10/14/2012 130 14,000 1,600 9,800 <4 880
9/17/2013 310 5,600 1,000 6,500 <10 510
10/22/2015 70 10,700 1,660 10,990 <6.2 800
4/18/2016 190 6,900 1,300 9,000 <100 770
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 24.4J 4,590 1,870 11,100 <25 1,030
5/3/2022
12/13/2022 <25 1,410 663 4,090 <25 564
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. Values in BOLD indicate levels above GCLs.
5. MTBE = Methyl tertiary butyl ether
6. All concentrations in micrograms per liter (ug/L)
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
MW-3
2L GW Standard
GCL
Well Not Sampled
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/5/1994 14,250 19,100 2,060 10,440 520 --
7/18/1995 16,900 33,300 1,800 11,300 <5,000 --
12/21/1995 31,400 44,100 2,140 9,690 <2,000 --
5/1/1996 22,200 29,900 2,060 12,800 1,600 --
2/17/1999 21,000 28,000 1,800 12,900 1,700 --
2/8/2000 16,000 22,000 1,800 16,100 880 --
5/22/2000 22,000 31,000 1,500 12,000 1,100 --
8/22/2000 21,000 29,000 2,200 13,800 1,500 --
11/9/2000 21,000 29,000 2,000 11,400 1,200 --
10/19/2011
4/12/2012 11,000 23,000 2,300 13,100 840 1,100
10/14/2012 13,000 27,000 2,700 17,800 1,100 1,700
9/18/2013 15,000 21,000 2,200 14,900 1,300 1,300
10/22/2015 15,800 27,200 1,990 15,310 841 1,540
4/18/2016
10/19/2016 20,000 30,000 2,000 13,500 460 820
5/2/2017 15,000 23,000 1,500 9,400 660 1,100
11/7/2017 18,000 28,000 2,100 13,500 1,100 1,100
11/30/2018 15,700 19,000 1,370 9,210 674 882
5/14/2019 10,500 17,800 1,330 9,170 501 1,190
11/26/2019 4,260 15,600 1,360 8,680 51.6 188
5/13/2020 7,020 12,100 1,080 9,580 378.0 799
8/16/2021 18,500 27,300 1,990 9,820 595.0 4,220
11/23/2021 12,300 18,600 1,590 9,390 581 464
5/3/2022 14,600 19,500 1,090 6,260 608 257
12/13/2022 15,700 22,500 978 5,320 462 281
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. Values in BOLD indicate levels above GCLs.
5. MTBE = Methyl tertiary butyl ether
6. All concentrations in micrograms per liter (ug/L)
Not Sampled - LNAPL
2L GW Standard
GCL
MW-4/
MW-4R
Not Sampled
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/5/1994 20,350 27,500 2,260 11,700 2,520 --
7/18/1995 18,400 39,000 1,980 12,300 1,663 --
12/21/1995 21,800 40,900 2,030 8,970 <2,000 --
5/1/1996 12,300 21,500 1,580 10,900 581 --
2/17/1999 33,000 54,000 2,000 9,400 1,300 --
2/8/2000 13,000 24,000 1,400 8,600 830 --
5/22/2000 13,000 27,000 1,400 10,200 <500 --
8/22/2000 17,000 25,000 2,100 12,700 230 --
11/9/2000 16,000 27,000 1,800 10,900 <220 --
10/19/2011
4/12/2012 7,500 14,000 790 5,100 22 550
10/14/2012 7,600 10,000 330 3,000 16 160
9/18/2013 4,100 10,000 680 7,600 <20 670
10/21/2015 7,380 18,200 519 10,420 101 813
4/18/2016 3,800 14,000 1,200 9,200 50J 1,100
10/19/2016 6,300 22,000 1,600 13,100 27 690
5/2/2017 4,400 14,000 870 6,900 <120 710
11/7/2017 8,100 29,000 1,400 9,700 81 680
11/30/2018 2,890 10,600 821 7,760 <100 748
5/14/2019 933 4,060 301 4,560 28.6 385
11/26/2019 6,100 21,300 1,130 6,360 <100 <100
5/13/2020 3,570 12,700 885 8,340 <100 761
8/16/2021 5,980 19,900 1,980 13,100 <100 972
11/23/2021 5,730 18,200 1,050 7,860 <100 730
5/3/2022 6,420 27,600 1,620 10,600 31.8J 652
12/13/2022 5,790 19,200 889 5,420 <100 842
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. Values in BOLD indicate levels above GCLs.
5. MTBE = Methyl tertiary butyl ether
6. All concentrations in micrograms per liter (ug/L)
7. J values denotes estimated concentration by the laboratory.
Not Sampled - Car Parked Over Well
GCL
MW-5
2L GW Standard
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/29/1994 5.2 5.1 BDL 33 BDL --
7/18/1995 11 2.44 10.6 81.7 BDL --
12/21/1995 23 3.38 9.7 158 BDL --
5/1/1996 16.2 7.67 13.4 177 3.56 --
2/17/1999 22 4 2 127 <1 --
2/8/2000 19 1.1 2.2 82.3 BDL --
5/22/2000 2.3 2.3 <1 25.9 <1 --
8/22/2000 19 1.2 6 128 <1 --
11/9/2000 20 1 4.1 93.3 <1 --
10/19/2011 120 270 520 1,250 <2 210
4/12/2012 110 250 450 1,210 <1 190
10/14/2012 120 54 220 680 <0.2 160
9/17/2013 93 96 250 793 <1 140
10/21/2015 65.7 16.8 159 281 <0.62 76
4/18/2016 70 8.4 180 193.4 <2.5 140
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 50.6 33.3 211 206 <2.5 190
5/3/2022
12/13/2022 66 3.2J 464 264 <5.0 475
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. Values in BOLD indicate levels above GCLs.
5. MTBE = Methyl tertiary butyl ether
6. All concentrations in micrograms per liter (ug/L)
Well Not Sampled
Well Not Sampled
GCL
Well Not Sampled
Well Not Sampled
Well Not Sampled
MW-6
2L GW Standard
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/29/1994 17,500 27,500 1,870 10,000 BDL --
7/18/1995 18,400 37,900 1,830 12,000 <5,000 --
12/21/1995 17,400 31,205 1,370 7,320 <2,500 --
5/1/1996 13,600 25,000 1,100 7,400 36.3 --
2/17/1999 13,000 30,000 2,200 11,700 100 --
2/8/2000 12,000 30,000 2,500 16,700 BDL --
5/22/2000 15,000 35,000 2,800 16,900 <100 --
8/22/2000 14,000 30,000 2,200 12,800 <100 --
11/9/2000 13,000 34,000 2,300 12,800 <220 --
10/19/2011
4/12/2012 890 15,000 1,700 10,600 <20 1,800
10/14/2012 650 22,000 2,200 13,300 <20 1,500
9/18/2013 740 12,000 1,300 8,800 <20 1,500
10/22/2015 331 23,600 3,100 18,180 <62.5 1,650
4/18/2016 420 17,000 1,800 10,300 <250 1,700
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 28.9J 7,030 1,950 12,100 <50 1,060
5/3/2022
12/13/2022 <50 7,080 2,340 14,900 <50 1,030
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
6. MTBE = Methyl tertiary butyl ether
7. All concentrations in micrograms per liter (ug/L)
Well Not Sampled
Well Not Sampled
Well Not Sampled
Not Sampled - LNAPL
Well Not Sampled
Well Not Sampled
2L GW Standard
Well Not Sampled
MW-7
Well Not Sampled
GCL
Well Not Sampled
Well Not Sampled
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/29/1994 17,000 25,000 1,600 8,700 2,600 --
7/18/1995 18,800 36,400 1,690 11,200 4,025 --
12/21/1995 22,200 33,200 1,400 8,490 <2,500 --
5/1/1996 21,500 32,600 1,840 10,600 3,290 --
2/17/1999 21,000 100,000 84,000 157,000 4,000 --
10/19/2011
4/12/2012 8,400 18,000 2,500 17,200 220 3,400
10/14/2012 13,000 23,000 2,100 11,600 160 1,700
9/18/2013 10,000 18,000 1,600 11,500 <40 1,500
10/21/2015 11,800 25,500 1,920 12,680 151 982
4/18/2016 7,200 14,000 1,100 7,300 140 990
10/19/2016 15,000 31,000 2,100 14,500 <250 1,300
5/2/2017 10,000 20,000 1,200 8,600 68J 720
11/7/2017 14,000 29,000 2,000 13,200 330 1,000
11/30/2018 10,600 18,300 1,290 9,290 <100 852
5/14/2019 5,340 11,100 797 6,440 67.1 686
11/26/2019 11,600 22,000 1,260 9,080 <100 586
5/13/2020 6,670 12,200 842 6,180 <100 699
8/16/2021 14,400 24,900 2,040 13,000 <100 959
11/23/2021 11,100 19,700 1,280 8,440 <100 918
5/3/2022 12,700 24,900 1,520 9,470 <14.0 558
12/13/2022 12,300 26,200 2,280 14,000 <100 701
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
6. MTBE = Methyl tertiary butyl ether
7. All concentrations in micrograms per liter (ug/L)
Not Sampled - Car Parked Over Well
MW-8
2L GW Standard
GCL
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/29/1994 8.1 3.9 3.6 24 BDL --
7/18/1995 14.9 14.3 6.28 68.7 BDL --
12/21/1995 24.5 18.5 6.67 57.7 BDL --
5/1/1996 10.8 21 8 63 3.4 --
2/17/1999 5 10 8 43 <1 --
2/8/2000 7.2 8 4.6 12.5 4.1 --
5/22/2000 21 60 8.1 72 <1 --
8/22/2000 25 47 7.3 61 <1 --
11/9/2000 6 4 3.2 27.5 <1 --
10/19/2011 3.2 0.18 0.47 3.2 <0.2 0.2
4/12/2012 3.4 <0.1 0.36 2.5 <0.2 0.24
10/14/2012 4.3 <0.1 <0.1 3.7 0.41 <0.5
9/17/2013 6.3 <0.1 0.3 3.9 <0.2 0.5
10/22/2015 0.92 <0.25 <0.25 0.63 <0.25 <1.0
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 2.1 17.8 2.8 17.1 <0.50 4.9
5/3/2022
12/13/2022 <0.50 0.33J <0.50 <0.50 <0.50 <0.50
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
6. MTBE = Methyl tertiary butyl ether
7. All concentrations in micrograms per liter (ug/L)
Well Not Sampled
Well Not Sampled
Well Not Sampled
MW-9
Well Not Sampled
Well Not Sampled
Well Not Sampled
2L GW Standard
GCL
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/29/1994 BDL 1.2 BDL 2.4 BDL --
7/18/1995 BDL BDL BDL BDL BDL --
12/21/1995 BDL BDL BDL BDL BDL --
5/1/1996 BDL 3 BDL 2 BDL --
2/17/1999 <1 <1 <1 <1 3 --
2/8/2000 BDL BDL BDL BDL BDL --
5/22/2000 1.5 <1 <1 <3 <1 --
8/22/2000 <1 <1 <1 1.7 1.3 --
11/9/2000 <1 <1 <1 <3 <1 --
10/19/2011 <0.1 <0.1 <0.1 <0.3 <0.2 <0.1
4/12/2012 <0.1 <0.1 <0.1 <0.3 <0.2 <0.1
10/14/2012 <0.2 <0.1 <0.1 <0.3 <0.2 <0.5
9/17/2013 <0.1 <0.1 <0.1 <0.3 <0.2 <0.5
10/21/2015 <0.25 <0.25 <0.25 <0.75 <0.25 <1.0
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 <0.50 21.4 16.0 101 <0.50 19.5
5/3/2022
12/13/2022 0.30J 2.7 0.77 3.9 <0.50 0.33J
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
6. MTBE = Methyl tertiary butyl ether
7. All concentrations in micrograms per liter (ug/L)
Well Not Sampled
Well Not Sampled
Well Not Sampled
MW-10
Well Not Sampled
Well Not Sampled
Well Not Sampled
2L GW Standard
GCL
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/29/1994 BDL 350 565 3,000 BDL --
7/18/1995 BDL 31.3 91.1 578 BDL --
12/21/1995 3.16 BDL BDL BDL 27.1 --
5/1/1996 <10 31.1 26 144 17 --
2/17/1999 8.4 6 62 366 50 --
2/8/2000 BDL 1,200 560 3,500 BDL --
5/22/2000 <5 <5 <5 103 <5 --
8/22/2000 <1 6.7 40 208 <1 --
11/9/2000 <1 8.1 39 192 <1 --
10/19/2011 3.8 34 99 228 <0.2 50
4/12/2012 2.9 22 49 137 <0.2 38
10/14/2012 1.3 8.4 7 43 <0.2 <0.5
9/17/2013 1.9 11 5.1 9 <0.2 <0.5
10/21/2015 0.76 5.4 4.2 7.4 <0.25 2.6
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 1.5 12.0 4.1 21.7 <0.50 4.7
5/3/2022
12/13/2022 <0.50 4.0 3.3 4.8 <0.50 3.0
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
6. MTBE = Methyl tertiary butyl ether
7. All concentrations in micrograms per liter (ug/L)
Well Not Sampled
2L GW Standard
GCL
MW-11
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/29/1994 16,500 34,000 2,230 11,410 BDL --
7/18/1995 14,400 44,600 2,530 14,900 <5,000 --
12/21/1995 14,900 41,000 1,960 11,700 <2,500 --
5/1/1996 13,400 39,200 2,490 14,600 94.5 --
2/17/1999 14,000 35,000 2,800 13,400 <50 --
2/8/2000 7,600 25,000 2,500 11,400 BDL --
5/22/2000 14,000 37,000 2,500 13,800 <250 --
8/22/2000 15,000 34,000 2,500 14,000 <100 --
11/9/2000 13,000 35,000 2,600 14,300 <220 --
10/19/2011 8,600 24,000 1,700 10,600 <20 630
4/12/2012 8,200 23,000 1,800 11,500 <40 660
10/14/2012 7,000 16,000 950 5,500 10 220
9/17/2013 4,900 15,000 1,600 9,300 <20 580
10/21/2015 6,930 26,000 2,560 15,020 <12.5 812
4/18/2016 6,600 23,000 2,600 13,500 <250 1,000
10/19/2016 7,500 22,000 2,200 13,700 <50 520
5/2/2017 6,200 21,000 1,600 10,400 <120 530
11/7/2017 5,800 21,000 1,900 11,400 <25 590
11/30/2018 4,120 16,900 1,870 11,800 <100 770
5/14/2019 3,510 16,200 1,740 10,500 <50 667
11/26/2019 3,310 7,890 624 3,870 <50 <50
5/13/2020 399 9,580 193 1,100 <5.0 59.6
8/16/2021 3,670 13,300 1,730 9,680 <5.0 863
11/23/2021 3,900 9,750 1,420 8,700 <50 820
5/3/2022 5,640 <0.220 <0.170 13,800 <0.140 668
12/13/2022 3,710 12,600 1,470 8,450 <100 524
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
6. MTBE = Methyl tertiary butyl ether
7. All concentrations in micrograms per liter (ug/L)
8. ND = Not Detected
MW-12
GCL
2L GW Standard
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
8/29/1994 225 625 70 335 BDL --
7/18/1995 122 83.8 19.7 128 BDL --
12/21/1995 303 52.5 35.2 346 BDL --
5/1/1996 175 66.6 48.8 248 2.73 --
2/17/1999 58 <1.0 7 <2.0 14 --
2/8/2000
5/22/2000 6.1 <1 <1 <3 7.9 --
8/22/2000 80 2.8 8.2 14 18 --
11/9/2000 810 16 58 207 20 --
10/19/2011 2,300 16 180 142 450 120
4/12/2012 1,900 13 120 82 420 100
10/14/2012 1,600 7.1 43 26.1 480 25
9/18/2013 160 0.41 1.2 8.85 370 1.3
10/21/2015 3,550 43 171 68 875 174
4/18/2016 25 <5 3.7J <15 560 13
10/19/2016 4,800 100 220 136 710 160
5/2/2017
11/7/2017
11/30/2018 37.8 23.6 2.9 15.9 330 2.7
5/14/2019 18.4 42.4 6.4 42.4 61.2 11.5
11/26/2019 <250 <250 <250 <250 273 <250
5/13/2020 1,370 20.2 35.1 54.5 674 48.3
8/16/2021 32.9 21.7 5.9J 25.7J 577 6.7J
11/23/2021 2,800 184 134 206 986 103
5/3/2022 1,910 59.5 119 157 837 123
12/13/2022 4,250 185 196 381 1,260 203
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
6. MTBE = Methyl tertiary butyl ether
7. All concentrations in micrograms per liter (ug/L)
8. ND = Not Detected
Could Not Locate
MW-13
Well Not Sampled
Well Not Sampled
2L GW Standard
GCL
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
7/18/1995 BDL BDL BDL BDL BDL --
12/21/1995 BDL BDL BDL BDL BDL --
5/1/1996 BDL 3.8 BDL 4.15 BDL --
2/17/1999 9 21 4 10 <1 --
2/8/2000 2.8 3.7 BDL BDL BDL --
5/22/2000 1.9 2.3 <1 <3 <1 --
8/22/2000 12 41 2.1 22.1 <1 --
11/9/2000 <1 <1 <1 <3 <1 --
10/19/2011 6.1 0.25 0.42 1.83 <0.2 0.66
4/12/2012 34 0.96 2 10.2 <0.2 1.2
10/14/2012 120 <0.1 2.2 33.3 <0.2 6.3
9/17/2013 <0.1 <0.1 <0.1 <0.3 <0.2 <0.5
10/21/2015 240 2.1 <0.25 34.4 <0.25 11.8
4/18/2016 <0.5 <0.5 <0.5 <1.5 <0.5 <0.5
10/19/2016 33 81 9.4 68 <0.50 4.3
5/2/2017
11/7/2017
11/30/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 12.5 29.9 8.2 42.8 <0.50 6.0
5/3/2022
12/13/2022 805 33.1 9.8 224 <0.50 53.9
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
6. MTBE = Methyl tertiary butyl ether
7. All concentrations in micrograms per liter (ug/L)
8. ND = Not Detected
MW-14
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
2L GW Standard
GCL
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
7/18/1995 BDL 1,930 228 1,410 <500 --
12/21/1995 3.06 61.1 77.7 461 BDL --
5/1/1996 6.97 54 59.8 297 2.88 --
2/17/1999 <10 320 210 730 <10 --
2/8/2000 BDL 3.1 2.5 8.2 BDL --
5/22/2000 <10 390 270 470 <10 --
8/22/2000 <2 180 96 201 <2 --
11/9/2000 <2 320 160 246 <2 --
10/19/2011 <2 3,000 1,500 3,140 <4 460
4/12/2012 <0.1 43 180 270 <0.2 75
10/14/2012 <0.2 130 130 160 <0.2 29
9/17/2013
10/21/2015
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021
5/3/2022
12/13/2022 0.30J 596 1,380E 1,480 <0.50 822
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
6. MTBE = Methyl tertiary butyl ether
7. All concentrations in micrograms per liter (ug/L)
8. ND = Not Detected
Well Damaged - Could Not Be Sampled
Well Not Sampled - Damaged Well
Well Damaged - Could Not Be Sampled
Well Not Sampled
MW-15
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled - Damaged Well
Well Not Sampled
2L GW Standard
GCL
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
7/18/1995 2,570 16,000 1,040 6,740 <2,000 --
12/21/1995 1,220 10,800 985 5,310 <2,500 --
5/1/1996 1,010 6,320 960 4,960 BDL --
2/17/1999 1,900 1,900 2,500 13,600 <10 --
2/8/2000 BDL 15,000 2,600 15,500 BDL --
5/22/2000 1,500 19,000 3,200 18,500 <100 --
8/22/2000 1,400 18,000 3,000 15,800 <100 --
11/9/2000 1,700 17,000 2,700 14,200 <100 --
10/19/2011
4/12/2012
10/14/2012 260 5,100 2,500 11,100 <4 1,200
9/18/2013 13 13 110 254 <1 170
10/21/2015
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018 0.89 10.8 14.8 8.2 <0.50 26.0
5/14/2019 3.2 19.8 35.0 24.9 <0.50 33.7
11/26/2019
5/13/2020 3.2 2.4 10.4 5.0 <0.50 2.9
8/16/2021
11/23/2021
5/3/2022
12/13/2022
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
6. MTBE = Methyl tertiary butyl ether
7. All concentrations in micrograms per liter (ug/L)8. ND = Not Detected
Not Enough Water - Well Not Sampled
Well Not Sampled
Well Not Sampled
Could Not Locate
LNAPL
2L GW Standard
Well Not Sampled
Well Not Sampled
Well Not Sampled - Well Dry
Well Not Sampled
GCL
MW-16
Well Not Sampled
Well Could Not Be Sampled
Well Dry
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
7/18/1995 BDL 1,340 4,800 9,030 <500 --
9/1/1995
2/19/2001 ND 7,000 2,300 10,600 ND --
10/19/2011
4/12/2012
10/14/2012
9/17/2013
10/21/2015
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021
5/3/2022
12/13/2022
12/21/1995 22,800 34,300 1,550 9,640 <2,500 --
5/1/1996 13,500 20,300 1,300 8,600 1,340 --
2/17/1999 22,000 32,000 2,100 9,800 2,800 --
2/8/2000 17,000 27,000 2,000 10,000 1,800 --
5/22/2000 20,000 36,000 3,200 18,500 790 --
8/22/2000 20,000 32,000 2,600 14,300 1100 --
11/9/2000 20,000 32,000 2,300 12,700 560 --
10/19/2011 12,000 15,000 6,300 35,000 <20 4,700
4/12/2012 13,000 21,000 2,200 13,400 240 840
10/14/2012 9,300 9,600 380 4,100 240 600
9/18/2013 6,600 12,000 920 8,400 <20 830
10/21/2015 10,400 26,400 1,520 12,290 144 910
4/18/2016 7,500 21,000 1,300 9,500 <250 820
10/19/2016 13,000 34,000 1,600 12,800 98J 700
5/2/2017 8,500 20,000 950 6,800 140J 850
11/7/2017 10,000 27,000 1,400 11,600 410 930
11/30/2018 7,400 18,400 1,080 9,440 208 736
5/14/2019 4,240 11,300 580 6,050 302 515
11/26/2019 7,380 23,100 804 8,320 377 580
5/13/2020 5,910 15,500 884 7,580 455 499
8/16/2021 9,390 29,300 1,720 12,700 485 845
11/23/2021 9,140 17,100 1,170 8,710 556 854
5/3/2022 12,000 32,000 1,780 11,800 612 746
12/13/2022 14,500 28,200 1,370 8,020 1,000 1,410
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
6. MTBE = Methyl tertiary butyl ether
7. All concentrations in micrograms per liter (ug/L)
8. ND = Not Detected
Well Not Sampled - Unable to Locate
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Not Sampled - Unable to Locate
Well Not Sampled
Not Sampled - Unable to Locate
Well Not Sampled
Not Sampled - Unable to Locate
Abandoned
MW-17A
2L GW Standard
GCL
MW-17
MW-18
Not Sampled - Unable to Locate
Not Sampled - Unable to Locate
Well Not Sampled
Well Could Not Be Located
TABLE 8
HISTORICAL GROUNDWATER ANALYTICAL DATA
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD 6200B
Total XylenesNaphthaleneBenzeneEthylbenzeneTolueneWellAnalytical Method:MTBEDate SampledMW-1
6/25/1996 BDL BDL BDL BDL BDL --
2/17/1999 <1 <1 <1 <1 <1 --
2/8/2000 BDL BDL BDL BDL BDL --
5/22/2000 <1 <1 <1 <3 <1 --
8/22/2000 <1 <1 <1 <3 <1 --
11/9/2000 <1 <1 <1 <3 <1 --
11/9/2011 <0.1 <0.1 <0.1 <0.3 <0.2 <0.1
4/12/2012 <0.1 <0.1 <0.1 <0.3 <0.2 1.9
10/14/2012 <0.2 <0.1 <0.1 <0.3 <0.2 <0.5
9/18/2013 <0.1 0.17 <0.1 <0.3 <0.2 <0.5
10/21/2015 <0.25 <0.25 <0.25 <0.75 <0.25 <1.0
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 <0.50 2.4 <0.50 <0.50 <0.50 0.12J
5/3/2022
12/13/2022 <0.50 <0.50 <0.50 <0.50 <0.50 0.30J
9/17/2013 <0.1 0.27 <0.1 <0.3 <0.2 <0.5
10/21/2015 <0.25 <0.25 <0.25 <0.75 <0.25 <1.0
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 2.0 15.7 2.7 19.0 <0.50 2.9
5/3/2022
12/13/2022 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
9/18/2013 <0.1 <0.1 <0.1 <0.1 <0.2 <0.5
10/21/2015 <0.25 0.28J <0.25 <0.75 <0.25 <1.0
4/18/2016
10/19/2016
5/2/2017
11/7/2017
11/30/2018
5/14/2019
11/26/2019
5/13/2020
8/16/2021
11/23/2021 <0.50 2.5 <0.50 <0.50 <0.50 <0.50
5/3/2022
12/13/2022 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
1 600 600 500 20 6
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<", BDL, or ND = None detected above method detection limit
2. NC 2L GW Standard = Title 15A NCAC 2L .0202 Groundwater Standard
3. GCL = Gross Contaminant Level established by NCDEQ
4. NA = Not analyzed
5. Values in BOLD indicate levels above GCLs
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Could Not Be Located
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
2L GW Standard
MW-21
MW-20
GCL
Well Not Sampled
Well Not Sampled
MW-19
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 9
CONTAMINANT MASS CALCULATIONS (Benzene)
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Year Area (FT^2)*
Aquifer Thickness
(FT) Effective Porosity Volume (FT^3) Volume (L)
Benzene
Concentration
(ug/L**)Mass (kg)
1995 27,000 30 0.30 243,000 6,880,513 117,240 806.7
1996 27,000 30 0.30 243,000 6,880,513 124,470 856.4
2000 27,000 30 0.30 243,000 6,880,513 105,700 727.3
2011 27,000 30 0.30 243,000 6,880,513 220,600 1517.8
2012 14,400 30 0.30 129,600 3,669,607 58,100 213.2
2013 3,500 30 0.30 31,500 891,918 31,600 28.2
2015 4,900 30 0.30 44,100 1,248,686 52,310 65.3
2017 7,200 30 0.30 64,800 1,834,803 55,900 102.6
2018 3,500 30 0.30 31,500 891,918 33,700 30.1
2019 1,950 30 0.30 17,550 496,926 15,840 7.9
2020 3,500 30 0.30 31,500 891,918 19,600 17.5
2021 8,000 30 0.30 72,000 2,038,670 38,270 78.0
May-22 12,150 30 0.30 109,350 3,096,231 51,360 159.0
Dec-22 8,000 30 0.30 72,000 2,038,670 48,290 98.4
Notes:
*** Benzene concentration for LNAPL - used 50% solubility of benzene
Area (FT^2)*Thickness (FT)Density (gm/cm^3)Volume (FT^3)Volume (cm^3)Mass (kg)
Benzene
Concentration
(mg/kg)**
Mass Benzene
(kg)
Unknown Unknown
Notes:
* Area based on soil impact equal to or above established Soil-to-Groundwater MSCC for benzene
Area (FT^2)*Thickness (FT)**Density (gm/cm^3)Volume (FT^3)Volume (cm^3)Mass (kg)
Benzene
Concentration
(mg/kg)**
Mass Benzene
(kg)
Unknown Unknown
Notes:
* Area based on soil impact equal to or above established Soil-to-Groundwater MSCC for benzene
** Smear zone average for soil borings in area equal to or above Soil-to-Groundwater MSCCs
** Sum of benzene concentrations in source area
BENZENE MASS CONCENTRATIONS (Groundwater)
SOIL SOURCE ZONE MASS CONCENTRATIONS (BENZENE)
* Area based on groundwater impact in source area for benzene exceeding GCLs
** Sum of benzene concentrations in source area exceeding GCLS
SMEAR SOIL SOURCE ZONE MASS CONCENTRATIONS (BENZENE)
** Sum of benzene concentrations in source area equal to or above Soil-to-Groundwater MSCC
TABLE 10
CONTAMINANT MASS REMOVAL (Benzene)
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Initial Mass Estimate
Initial
Baseline
(1995)
Soil Source Zone Mass (kg)0.00
Smear Source Mass (kg)0.00
Groundwater Zone Mass (kg)806.67
Total Mass: Baseline/Milestone (kg)806.7
5/1/1996 5/22/2000 10/19/2011 10/14/2012 9/18/2013 10/22/2015 11/7/2017 11/30/2018 5/14/2019 6/1/2020 11/23/2021 5/3/2022 12/13/2022
Measured Mass
Soil Source Zone (kg)NA NA NA NA NA NA NA NA NA NA NA NA NA
Smear Source Zone (kg)NA NA NA NA NA NA NA NA NA NA NA NA NA
Groundwater Zone (kg)856.4 727.3 1517.8 213.2 28.2 65.3 102.6 30.1 7.9 17.5 78.0 159.0 98.4
Removed Mass
Excavated From Soil/Smear (kg)NA NA NA NA NA NA NA NA NA NA NA NA NA
Extracted as Vapor/Gas (kg)NA NA NA NA NA NA NA NA NA NA NA NA NA
Extracted as Liquid (kg)-49.7 79.4 -711.2 593.5 778.5 741.4 704.1 776.6 798.8 789.2 728.7 647.7 708.2
Total Mass Removed (kg)-49.7461063 79.40111578 -711.169786 593.4671496 778.4866826 741.3525559 704.1057927 776.6136542 798.7999946 789.2 728.7 647.7 708.2
Revised Total Mass (kg)856.4 727.3 1517.8 213.2 28.2 65.3 102.6 30.1 7.9 17.5 78.0 159.0 98.4
Estimated Reduction Rate -6%10%-88%74%97%92%87%96%99%98%90%80%88%
Reference Milestone (Label)Baseline Baseline Baseline Baseline Baseline Baseline Baseline Baseline Baseline Baseline Baseline Baseline Baseline
Reference Milestone (Value)806.7 806.7 806.7 806.7 806.7 806.7 806.7 806.7 806.7 806.7 806.7 806.7 806.7
Reduction Progress vs Milestone NM NM NM NM NM NM NM NM NM NM NM NM NM
Evaluation of Change in Benzene Contaminant Mass
Measured/Calculated Change in
Contaminant Mass
Milestone Sampling Measurement Event Dates

FIGURES

MW-19MW-1B
A
R
BO
U
R

S
T
R
E
E
T E 2nd STREETS CHURCH STREET
E MAIN STREETMW-21MW-17AMW-2MW-3MW-4RMW-5MW-6MW-7MW-8MW-9MW-10MW-11MW-12MW-13MW-14MW-15MW-16MW-20MW-18SOUTHERN RAILROADMW-19270' SOUTHFORMERDISPENSERISLANDEXCAVATION
MW-1E MAIN STREETMW-21MW-17AMW-2MW-3MW-4RMW-5MW-6MW-7MW-8MW-9MW-10MW-11MW-12MW-13MW-14MW-15MW-16MW-20MW-18SOUTHERN RAILROADMW-19270' SOUTHRL-2RL-1RL-5RL-4RL-3RL-8RL-7RL-6FORMERDISPENSERISLANDEXCAVATION
MW-1E MAIN STREETMW-21MW-17AMW-2MW-3MW-4RMW-5MW-6MW-7MW-8MW-9MW-10MW-11MW-12MW-13MW-14MW-15MW-16MW-20MW-18SOUTHERN RAILROADMW-19270' SOUTHRL-2RL-1RL-5RL-4RL-3RL-8RL-7RL-6FORMERDISPENSERISLANDEXCAVATION
MW-1E MAIN STREETMW-21MW-17AMW-2MW-3MW-4RMW-5MW-6MW-7MW-8MW-9MW-10MW-11MW-12MW-13MW-14MW-15MW-16MW-20MW-18SOUTHERN RAILROADMW-19270' SOUTHRL-2RL-1RL-5RL-4RL-3RL-8RL-7RL-6FORMERDISPENSERISLANDEXCAVATIONABA'B'
GROUNDWATER ELEVATIONBORING/WELLBORING/WELL IDXX-YY
MW-1E MAIN STREETMW-21MW-17AMW-2MW-3MW-4RMW-5MW-6MW-7MW-8MW-9MW-10MW-11MW-12MW-13MW-14MW-15MW-16MW-20MW-18SOUTHERN RAILROADMW-19270' SOUTHFORMERDISPENSERISLANDEXCAVATION(74.88)(74.35)(75.40)(74.78)(74.44)(73.86)(75.44)(75.04)(75.25)(72.97)(74.69)(NM)(NM)(74.58)(NM)(NM)(NM)(73.49)(73.68)(74.60)(75.37)
MW-1E MAIN STREETMW-21MW-17AMW-2MW-3MW-4RMW-5MW-6MW-7MW-8MW-9MW-10MW-11MW-12MW-13MW-14MW-15MW-16MW-20MW-18SOUTHERN RAILROADMW-19270' SOUTHFORMERDISPENSERISLANDEXCAVATION15,70014,5005,79012,30014,00010,0005,00015,50012,300
MW-1E MAIN STREETMW-21MW-17AMW-2MW-3MW-4RMW-5MW-6MW-7MW-8MW-9MW-10MW-11MW-12MW-13MW-14MW-15MW-16MW-20MW-18SOUTHERN RAILROADMW-19270' SOUTHFORMERDISPENSERISLANDEXCAVATION
FIGURE 10
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
0.00
5.00
10.00
15.00
20.00
25.00
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
MW-1: Dissolved Benzene Concentrations versus Depth to Water Through Time
Benzene Depth to Water
FIGURE 11
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
0.00
5.00
10.00
15.00
20.00
25.00
30.00
0
2,000
4,000
6,000
8,000
10,000
12,000
Depth to Water (feet)Dissolvedd Benzene Concentration (ug/L)Date
MW-2: Dissolved Benzene Concentrations versus Depth to Water Through Time
Benzene Depth to Water
FIGURE 12
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
0.00
5.00
10.00
15.00
20.00
25.00
30.00
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
MW-4: Dissolved Benzene Concentrations versus Depth to Water Through Time
Benzene Depth to Water
FIGURE 13
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
0.00
5.00
10.00
15.00
20.00
25.00
30.00
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
MW-5: Dissolved Benzene Concentrations versus Depth to Water Through Time
Benzene Depth to Water
FIGURE 14
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
0.00
5.00
10.00
15.00
20.00
25.00
30.00
0
5,000
10,000
15,000
20,000
25,000
Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
MW-8: Dissolved Benzene Concentrations versus Depth to Water Through Time
Benzene Depth to Water
FIGURE 15
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
0.00
5.00
10.00
15.00
20.00
25.00
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
MW-12: Dissolved Benzene Concentrations versus Depth to Water Through Time
Benzene Depth to Water
FIGURE 16
FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
0.00
5.00
10.00
15.00
20.00
25.00
30.00
0
5,000
10,000
15,000
20,000
25,000
Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
MW-18: Dissolved Benzene Concentrations versus Depth to Water Through Time
Benzene Depth to Water

APPENDIX A
BORING LOGS
12-08-2022 S:\Enviro\Pantry\Pantry 176 - Clayton\Boring Logs\RL-1.borClient: Circle K Stores, Inc.
ATC Project #:PANT176T22
Clayton, Johnston County, North Carolina
208 Main Street
Former Pantry #176
SOIL BORING: RL-1
(Page 1 of 1)
Date(s) Drilled : 12/7/2022
Drilling Contractor : AmeriProbe
Drilling Method : Hand Auger
: Direct Push Technology (DPT)
Boring Diameter : 2.25"
Sampling Method : Macrocore
Sampling Invertal : Continuous
Logged By : Aaron D. Springer
Depth in Feet (BGS)0
5
10
15
20
25
30 USCSSC
ML GRAPHICDESCRIPTION
CLAYEY SAND, medium grained, subangular, white, orangish brown, dark orange, damp. Increased coarse grained sand at 5 feet bgs. 1/4 inch quartz fragments at 6 feet bgs. 1/2 inch quartz fragments at 12 feet bgs. Increased clay content at 14.5 feet bgs. Moist at 14.5 feet bgs.
CLAYEY SILT, brownish red, some orange, wet.
End of boring.
PID
(ppm)
17.6
22.6
33.6
>15,000
>15,000
257.4
bgs = Below Ground Surface.
Soil samples RL-1 (15'), RL-1 (20'), RL-1 (25'), and RL-1 (30') collected from 15,
20, 25, and 30 feet bgs, respectively.
12-08-2022 S:\Enviro\Pantry\Pantry 176 - Clayton\Boring Logs\RL-2.borClient: Circle K Stores, Inc.
ATC Project #:PANT176T22
Clayton, Johnston County, North Carolina
208 Main Street
Former Pantry #176
bgs = Below Ground Surface.
Soil samples RL-2 (15'), RL-2 (20'), and RL-2 (25') collected from 15, 20, and 25
feet bgs, respectively.
SOIL BORING: RL-2
(Page 1 of 1)
Date(s) Drilled : 12/7/2022
Drilling Contractor : AmeriProbe
Drilling Method : Hand Auger
: Direct Push Technology (DPT)
Boring Diameter : 2.25"
Sampling Method : Macrocore
Sampling Invertal : Continuous
Logged By : Aaron D. Springer
Depth in Feet (BGS)0
5
10
15
20
25 USCSSC
ML GRAPHICDESCRIPTION
CLAYEY SAND, medium grained, subangular, white, orangish brown, dark orange, damp. Increased coarse grained sand at 5 feet bgs. 1/4 inch quartz fragments at 6 feet bgs. 1/2 inch quartz fragments at 12 feet bgs. Increased clay content at 14.5 feet bgs. Moist at 14.5 feet bgs.
CLAYEY SILT, brownish red, some orange, wet.
End of boring.
PID
(ppm)
28.1
30.7
32.1
72.8
82.6
12-08-2022 S:\Enviro\Pantry\Pantry 176 - Clayton\Boring Logs\RL-3.borClient: Circle K Stores, Inc.
ATC Project #:PANT176T22
Clayton, Johnston County, North Carolina
208 Main Street
Former Pantry #176
bgs = Below Ground Surface.
Soil samples RL-3 (15'), RL-3 (20'), RL-3 (25'), and RL-3 (30') collected from 15,
20, 25, and 30 feet bgs, respectively.
SOIL BORING: RL-3
(Page 1 of 1)
Date(s) Drilled : 12/7/2022
Drilling Contractor : AmeriProbe
Drilling Method : Hand Auger
: Direct Push Technology (DPT)
Boring Diameter : 2.25"
Sampling Method : Macrocore
Sampling Invertal : Continuous
Logged By : Aaron D. Springer
Depth in Feet (BGS)0
5
10
15
20
25
30 USCSAR
ML
ML
ML GRAPHICDESCRIPTION
Asphalt and aggregate fill.
SANDY SILT, orangish brown, damp.
CLAYEY SILT, brownish red with white and orange layers, moist. Wet at 17 feet bgs.
SILT, dark brown with red hue, white and black layers, saturated.
End of boring.
PID
(ppm)
7.3
11.8
67.8
218.9
>15,000
>15,000
12-08-2022 S:\Enviro\Pantry\Pantry 176 - Clayton\Boring Logs\RL-4.borClient: Circle K Stores, Inc.
ATC Project #:PANT176T22
Clayton, Johnston County, North Carolina
208 Main Street
Former Pantry #176
bgs = Below Ground Surface.
Soil samples RL-4 (15'), RL-4 (20'), RL-4 (25'), and RL-4 (30') collected from 15,
20, 25, and 30 feet bgs, respectively.
SOIL BORING: RL-4
(Page 1 of 1)
Date(s) Drilled : 12/7/2022
Drilling Contractor : AmeriProbe
Drilling Method : Hand Auger
: Direct Push Technology (DPT)
Boring Diameter : 2.25"
Sampling Method : Macrocore
Sampling Invertal : Continuous
Logged By : Aaron D. Springer
Depth in Feet (BGS)0
5
10
15
20
25
30 USCSAR
ML
ML GRAPHICDESCRIPTION
Asphalt and aggregate fill.
SANDY SILT, orangish brown, damp.
CLAYEY SILT, brownish red with white and orange layers, moist. Wet at 17 feet bgs.
End of boring.
PID
(ppm)
20.7
45.5
44.0
246.4
>15,000
NM
12-08-2022 S:\Enviro\Pantry\Pantry 176 - Clayton\Boring Logs\RL-5.borClient: Circle K Stores, Inc.
ATC Project #:PANT176T22
Clayton, Johnston County, North Carolina
208 Main Street
Former Pantry #176
bgs = Below Ground Surface.
Soil samples RL-5 (15'), RL-5 (20'), RL-5 (25'), and RL-5 (30') collected from 15,
20, 25, and 30 feet bgs, respectively.
SOIL BORING: RL-5
(Page 1 of 1)
Date(s) Drilled : 12/7/2022
Drilling Contractor : AmeriProbe
Drilling Method : Hand Auger
: Direct Push Technology (DPT)
Boring Diameter : 2.25"
Sampling Method : Macrocore
Sampling Invertal : Continuous
Logged By : Aaron D. Springer
Depth in Feet (BGS)0
5
10
15
20
25
30 USCSAR
ML
ML
ML GRAPHICDESCRIPTION
Asphalt and aggregate fill.
SANDY SILT, orangish brown, damp.
CLAYEY SILT, brownish red with white and orange layers, moist. Wet at 17 feet bgs.
SILT, dark brown with red hue, white and black layers, saturated.
End of boring.
PID
(ppm)
16.3
59.9
36.3
133.6
456.5
251.5
12-08-2022 S:\Enviro\Pantry\Pantry 176 - Clayton\Boring Logs\RL-6.borClient: Circle K Stores, Inc.
ATC Project #:PANT176T22
Clayton, Johnston County, North Carolina
208 Main Street
Former Pantry #176
bgs = Below Ground Surface.
Soil samples RL-6 (15'), RL-6 (20'), RL-6 (25'), and RL-6 (30') collected from 15,
20, 25, and 30 feet bgs, respectively.
SOIL BORING: RL-6
(Page 1 of 1)
Date(s) Drilled : 12/7/2022
Drilling Contractor : AmeriProbe
Drilling Method : Hand Auger
: Direct Push Technology (DPT)
Boring Diameter : 2.25"
Sampling Method : Macrocore
Sampling Invertal : Continuous
Logged By : Aaron D. Springer
Depth in Feet (BGS)0
5
10
15
20
25
30 USCSAR
ML
ML GRAPHICDESCRIPTION
Asphalt and aggregate fill.
CLAYEY SILT, orangish brown and orange stained white, dry. Moist at 14 feet bgs.
CLAYEY SILT, brownish red with white layers, moist. Wet at 18 feet bgs.
End of boring.
PID
(ppm)
94.5
104.1
114.4
206.9
>15,000
117.4
12-08-2022 S:\Enviro\Pantry\Pantry 176 - Clayton\Boring Logs\RL-7.borClient: Circle K Stores, Inc.
ATC Project #:PANT176T22
Clayton, Johnston County, North Carolina
208 Main Street
Former Pantry #176
bgs = Below Ground Surface.
Soil samples RL-7 (15'), RL-7 (20'), RL-7 (25'), and RL-7 (30') collected from 15,
20, 25, and 30 feet bgs, respectively.
SOIL BORING: RL-7
(Page 1 of 1)
Date(s) Drilled : 12/7/2022
Drilling Contractor : AmeriProbe
Drilling Method : Hand Auger
: Direct Push Technology (DPT)
Boring Diameter : 2.25"
Sampling Method : Macrocore
Sampling Invertal : Continuous
Logged By : Aaron D. Springer
Depth in Feet (BGS)0
5
10
15
20
25
30 USCSAR
ML
ML GRAPHICDESCRIPTION
Asphalt and aggregate fill.
CLAYEY SILT, orangish brown and orange stained white, dry. Moist at 14 feet bgs.
CLAYEY SILT, brownish red with white layers, moist. Wet at 18 feet bgs.
End of boring.
PID
(ppm)
40.4
75.8
204.2
228.0
252.2
87.9
12-08-2022 S:\Enviro\Pantry\Pantry 176 - Clayton\Boring Logs\RL-8.borClient: Circle K Stores, Inc.
ATC Project #:PANT176T22
Clayton, Johnston County, North Carolina
208 Main Street
Former Pantry #176
bgs = Below Ground Surface.
Soil samples RL-8 (15'), RL-8 (20'), RL-8 (25'), and RL-8 (30') collected from 15,
20, 25, and 30 feet bgs, respectively.
SOIL BORING: RL-8
(Page 1 of 1)
Date(s) Drilled : 12/7/2022
Drilling Contractor : AmeriProbe
Drilling Method : Hand Auger
: Direct Push Technology (DPT)
Boring Diameter : 2.25"
Sampling Method : Macrocore
Sampling Invertal : Continuous
Logged By : Aaron D. Springer
Depth in Feet (BGS)0
5
10
15
20
25
30 USCSAR
SW
ML
ML GRAPHICDESCRIPTION
Asphalt and aggregate fill.
SAND, well graded, subangular, gray, fill material.
CLAYEY SILT, orangish brown and orange stained white, dry.
CLAYEY SILT, brownish red with white and orange layers, moist.
End of boring.
PID
(ppm)
9.4
9.6
65.7
602.8
451.5
>15,000

APPENDIX B
HISTORICAL SOIL INFORMATION AND
HISTORICAL GEOLOGIC
CROSS-SECTIONS

TABLE 1
SOIL SAMPLE RESULTS - SOIL DISPOSAL

FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
TPH-GROTPH-DROTRK-1 4/12/21 17.68 753 440 --
TRK-2 4/12/21 18.10 2,200 2,210 --
TRK-3 4/12/21 19.14 2,900 1,290 --
TRK-4 4/12/21 29.40 1,800 1,430 --
TRK-5 4/12/21 21.25 3,200 938 --
TRK-6 4/12/21 19.42 3,322 883 --
TRK-7 4/12/21 19.46 15,000 783 --
TRK-8 4/12/21 21.08 11,300 411 --
TRK-9 4/13/21 23.32 11,800 7,410 --
TRK-10 4/13/21 26.00 13,000 959 --
TRK-11 4/13/21 23.16 15,000 11,700 --
TRK-12 4/13/21 24.30 15,000 405 --
TRK-13 4/13/21 23.43 15,000 1,060 --
TRK-14 4/13/21 21.07 15,000 4,600 --
TRK-15 4/13/21 29.60 1,103 2,070 --
DISP-1 4/13/21 --15,000 --25.8
DISP-2 4/13/21 --15,000 --119
50 100
Notes:
1. Concentrations reported in milligrams per kilogram (mg/kg).
EPA METHOD 8015C
TOTAL TONNAGE 336.41
State Action Level (mg/kg)
PID
Reading
(ppm)
Soil
Disposed
(Tons)
Date
Sampled
Sample
ID
TABLE 2
CONFIRMATORY SOIL SAMPLE RESULTS

FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
Sample
ID
Date
Sampled
PID
Reading
(ppm)
Sample
Depth
(feet)AcetoneBenzeneTolueneEthylbenzeneTotal XylenesNaphthaleneMTBEIPEStyrene1,2-Dibromoethane1,2-Dichloroethanen-Butylbenzenen-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneMethyl Ethyl KetoneSW-1 4/13/21 413 13-15 0.116 0.0010 0.0139 0.0096 0.0992 0.0494 <0.0015 0.0026 <0.0015 <0.0015 <0.0015 <0.0074 <0.0074 0.0747 0.0200 <0.018
SW-2 4/13/21 789 13-15 0.140 0.0013 0.0208 0.0175 0.178 0.0667 0.0019 0.0041 0.0016 <0.0015 <0.0015 <0.0076 0.0091 0.130 0.0380 0.0218
SW-3 4/14/21 813 13-15 0.171 0.0031 0.0408 0.0305 0.283 0.0761 0.0038 0.0093 0.0024 <0.0016 0.0021 <0.0078 0.0127 0.165 0.0499 0.0273
SW-4 4/14/21 917 13-15 0.162 0.0068 0.0969 0.0665 0.548 0.0984 0.0045 0.0134 0.0053 0.0028 0.0026 0.0071 0.0247 <0.47 0.0850 0.0250
24 0.0072 5.4 8 6 0.2 0.085 0.32 0.9 0.000096 0.0019 2.4 1.4 6.6 6.6 16
14,000 12 1,250 60.3 3,120 5.5 156 --3,120 0.33 7.29 782 1,560 156 156 9,380
210,000 59.4 18,600 297 46,700 27 1,810 2,330 46,700 1.63 35.9 11,600 23,300 2,330 2,330 140,000
Notes:
1. MSCC = Maximum Soil Contaminant Concentration established by NCDEQ.
2. Concentrations reported in milligrams per kilogram (mg/kg).
3. Bold type indicates compound concentration was detected above established STGW-MSCC.
4. "<" = not detected at or above the laboratory detection limit.
Soil-to-Groundwater MSCCs (mg/kg)
Residential MSCCs (mg/kg)
Industrial/Commercial MSCCs (mg/kg)
ANALTYICAL METHOD EPA Method 8260
TABLE 1
SOIL SAMPLE ANALYTICAL RESULTS

FORMER PANTRY #176
208 MAIN STREET
CLAYTON, JOHNSTON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 15545
EPA METHOD
8015
Sample ID Date Sampled PID Reading (ppm)Sample Depth (feet)TPH-GROSE-3-1 11/9/20 6.6 2-3 <7.1
SE-3-2 11/9/20 9.1 4-5 <7.1
SE-3-3 11/9/20 24.9 9-10 <8.0
SE-3-4 11/9/20 3.0 14-15 <7.0
SE-3-5 11/9/20 35.1 19-20 <7.5
SE-4-1 11/9/20 38.3 2-3 12.3
SE-4-2 11/9/20 104.0 4-5 <7.1
SE-4-3 11/9/20 306.0 9-10 217
SE-4-4 11/9/20 1,273 14-15 2,550
SE-4-5 11/9/20 504 19-20 690
SD-2-1 11/9/20 0.0 2-3 <11
SD-2-2 11/9/20 9.0 4-5 <11
SD-2-3 11/9/20 12.2 9-10 <9.4
SD-2-4 11/9/20 5.7 14-15 <9.0
SD-2-5 11/9/20 26.0 19-20 <9.0
50
Notes:
1. Concentrations reported in milligrams per kilogram (mg/kg).
2. Bold type indicates compound concentration was detected above State Action Level.
3. "<" = not detected at or above the laboratory detection limit.
State Action Level (mg/kg)
ANALTYICAL METHOD

APPENDIX C
REDLAB DATA

Hydrocarbon Analysis Results
Client:ATC Samples taken Wednesday, December 7, 2022
Address:208 MAIN STREET Samples extracted Wednesday, December 7, 2022
CLAYTON, NC Samples analysed Wednesday, December 7, 2022
Contact:MAUREEN JACKSON Operator CLAIRE NAKAMURA
Project:PANTRY #176
11 U04049
Matrix Sample ID Dilution
used
BTEX
(C6 - C9)
GRO
(C5 - C10)
DRO
(C10 - C35)
TPH
(C5 - C35)
Total
Aromatics
(C10-C35)
16 EPA
PAHs BaP HC Fingerprint Match
% light % mid %
heavy
s RL-1 (15') @ 9:33 AM 17.9 <0.45 <0.45 <0.45 <0.45 <0.09 <0.14 <0.018 99.2 0.8 0 Residual HC,(P)
s RL-1 (20') @ 9:37 AM 15.9 <0.4 147 163.6 310.6 8.6 0.33 <0.016 99.9 0.1 0 Deg.Kerosene 91.8%,(FCM),(BO),(P)
s RL-1 (25') @ 9:42 AM 211.0 274.6 778.5 31.9 810.4 20.1 <1.7 <0.21 99.9 0 0.1 Deg.Gas 85.3%,(FCM)
s RL-1 (30') @ 9:47 AM 19.5 <0.49 14.1 <0.49 14.1 <0.1 <0.16 <0.02 99.8 0 0.2 Deg Gas 69.8%,(FCM)
s RL-2 (15') @10:13 AM 18.4 <0.46 <0.46 <0.46 <0.46 <0.09 <0.15 <0.018 0 95.3 4.7 Residual HC
s RL-2 (20') @ 10:18 AM 17.7 <0.44 1.7 <0.44 1.7 <0.09 <0.14 <0.018 99.6 0 0.4 Deg.Gas,(FCM),(BO)
s RL-2 (25') @ 10:22 AM 20.8 <0.52 5.3 <0.52 5.3 <0.1 <0.17 <0.021 98.8 0.5 0.8 Deg.Gas,(FCM),(BO)
s RL-3 (15') @ 10:52 AM 22.2 <0.56 <0.56 0.56 0.56 0.37 <0.18 <0.022 0 35.3 64.7 Residual HC,(BO),(P)
s RL-3 (20') @ 10:55 AM 19.3 21.7 82.9 2.9 85.8 2.8 <0.15 <0.019 99.8 0.1 0.1 Deg.Gas 76.9%,(FCM),(BO),(P)
s RL-3 (25') @ 10:59 AM 20.5 <0.51 145.1 140.3 285.4 4.8 <0.16 <0.02 100 0 0 Deg Gas 90.9%,(FCM)
Initial Calibrator QC check OK Final FCM QC Check OK 101.9 %
Results generated by a QED HC-1 analyser. Concentration values in mg/kg for soil samples and mg/L for water samples. Soil values are not corrected for moisture or stone content
Fingerprints provide a tentative hydrocarbon identification. The abbreviations are:- FCM = Results calculated using Fundamental Calibration Mode : % = confidence for sample fingerprint match to library
(SBS) or (LBS) = Site Specific or Library Background Subtraction applied to result : (PFM) = Poor Fingerprint Match : (T) = Turbid : (P) = Particulate present
Ratios
QED Hydrocarbon Fingerprints
Project:PANTRY #176 12/7/2022
1248
RL-1 (15') @ 9:33 AM : Residual HC,(P)
14726
RL-1 (20') @ 9:37 AM : Deg.Kerosene
3681
RL-1 (25') @ 9:42 AM : Deg.Gas 85.3%,(FCM)
1263
RL-1 (30') @ 9:47 AM : Deg Gas 69.8%,(FCM)
1061
RL-2 (15') @10:13 AM : Residual HC
700
RL-2 (20') @ 10:18 AM : Deg.Gas,(FCM),(BO)
1812
RL-2 (25') @ 10:22 AM : Deg.Gas,(FCM),(BO)
1637
RL-3 (15') @ 10:52 AM : Residual HC,(BO),(P)
5397
RL-3 (20') @ 10:55 AM : Deg.Gas
10924
RL-3 (25') @ 10:59 AM : Deg Gas 90.9%,(FCM)
Hydrocarbon Analysis Results
Client:ATC Samples taken Wednesday, December 7, 2022
Address:208 MAIN STREET Samples extracted Wednesday, December 7, 2022
CLAYTON, NC Samples analysed Wednesday, December 7, 2022
Contact:MAUREEN JACKSON Operator CLAIRE NAKAMURA
Project:PANTRY #176
15 U04049
Matrix Sample ID Dilution
used
BTEX
(C6 - C9)
GRO
(C5 - C10)
DRO
(C10 - C35)
TPH
(C5 - C35)
Total
Aromatics
(C10-C35)
16 EPA
PAHs BaP HC Fingerprint Match
% light % mid %
heavy
s RL-3 (30') @ 11:08 AM 17.8 9.2 41.5 0.45 41.95 0.32 <0.14 <0.018 99.8 0 0.2 Undeg.Gas 69.7%,(FCM),(BO),(P)
s RL-4 (15') @ 11:23 AM 17.9 <0.45 17.8 0.64 18.44 0.3 <0.14 <0.018 99.1 0.6 0.2 No Match found
s RL-4 (20') @ 11:30 AM 17.7 23.2 75.2 4 79.2 2.7 <0.14 <0.018 99.9 0 0 Deg.Gas 87%,(FCM)
Initial Calibrator QC check OK Final FCM QC Check OK 101.5 %
Results generated by a QED HC-1 analyser. Concentration values in mg/kg for soil samples and mg/L for water samples. Soil values are not corrected for moisture or stone content
Fingerprints provide a tentative hydrocarbon identification. The abbreviations are:- FCM = Results calculated using Fundamental Calibration Mode : % = confidence for sample fingerprint match to library
(SBS) or (LBS) = Site Specific or Library Background Subtraction applied to result : (PFM) = Poor Fingerprint Match : (T) = Turbid : (P) = Particulate present
Ratios
QED Hydrocarbon Fingerprints
Project:PANTRY #176 12/7/2022
3509
RL-3 (30') @ 11:08 AM : Undeg.Gas
2674
RL-4 (15') @ 11:23 AM : No Match found
5109
RL-4 (20') @ 11:30 AM : Deg.Gas 87%,(FCM)
Hydrocarbon Analysis Results
Client:ATC Samples taken Wednesday, December 7, 2022
Address:208 MAIN STREET Samples extracted Wednesday, December 7, 2022
CLAYTON, NC Samples analysed Wednesday, December 7, 2022
Contact:MAUREEN JACKSON Operator CLAIRE NAKAMURA
Project:PANTRY #176
6 U04049
Matrix Sample ID Dilution
used
BTEX
(C6 - C9)
GRO
(C5 - C10)
DRO
(C10 - C35)
TPH
(C5 - C35)
Total
Aromatics
(C10-C35)
16 EPA
PAHs BaP HC Fingerprint Match
% light % mid %
heavy
s RL-4 (25') @ 11:40 AM 135.0 <3.4 647.6 652 1299.6 21.6 <1.1 <0.13 100 0 0 Deg.Kerosene 89.1%,(FCM)
s RL-4 (30') @ 11:48 AM 8.3 <0.21 14.5 8.3 22.8 0.29 <0.07 <0.008 100 0 0 No Match found
Initial Calibrator QC check OK Final FCM QC Check OK 96.4 %
Results generated by a QED HC-1 analyser. Concentration values in mg/kg for soil samples and mg/L for water samples. Soil values are not corrected for moisture or stone content
Fingerprints provide a tentative hydrocarbon identification. The abbreviations are:- FCM = Results calculated using Fundamental Calibration Mode : % = confidence for sample fingerprint match to library
(SBS) or (LBS) = Site Specific or Library Background Subtraction applied to result : (PFM) = Poor Fingerprint Match : (T) = Turbid : (P) = Particulate present
Ratios
QED Hydrocarbon Fingerprints
Project:PANTRY #176 12/7/2022
7216
RL-4 (25') @ 11:40 AM : Deg.Kerosene
2664
RL-4 (30') @ 11:48 AM : No Match found
Hydrocarbon Analysis Results
Client:ATC Samples taken Wednesday, December 7, 2022
Address:208 MAIN STREET Samples extracted Wednesday, December 7, 2022
CLAYTON, NC Samples analysed Wednesday, December 7, 2022
Contact:MAUREEN JACKSON Operator CLAIRE NAKAMURA
Project:PANTRY #176
15 U04049
Matrix Sample ID Dilution
used
BTEX
(C6 - C9)
GRO
(C5 - C10)
DRO
(C10 - C35)
TPH
(C5 - C35)
Total
Aromatics
(C10-C35)
16 EPA
PAHs BaP HC Fingerprint Match
% light % mid %
heavy
s RL-6 (15') @ 2:10 PM 18.7 <0.47 <0.47 <0.47 <0.47 <0.09 <0.15 <0.019 0 0 0 PHC not detected,(BO)
s RL-6 (20') @ 2:15 PM 20.0 <0.5 <0.5 <0.5 <0.5 <0.1 <0.16 <0.02 0 100 0 ,(FCM),(BO)
s RL-6 (25') @ 2:20 PM 351.0 <8.8 366.1 109.5 475.6 5.7 <2.8 <0.35 100 0 0 Deg.Diesel 74.7%,(FCM)
s RL-6 (30') @ 2:38 PM 25.6 <0.64 6.2 <0.64 6.2 <0.13 <0.2 <0.026 98.7 0.4 0.9 Deg.Gas,(FCM),(BO)
s RL-7 (15') @ 2:42 PM 9.9 <0.25 <0.25 <0.25 <0.25 <0.05 <0.08 <0.01 0 35.3 64.7 ,(FCM),(BO)
s RL-7 (20') @ 2:48 PM 25.2 <0.63 58.2 54.1 112.3 1.2 <0.2 <0.025 100 0 0 Deg.Diesel 82%,(FCM),(P)
s RL-7 (25') @ 2:54 PM 120.0 <3 236.9 258.1 495 8.7 <0.96 <0.12 100 0 0 Deg.Kerosene 91.7%,(FCM)
s RL-7 (30') @ 2:57 PM 26.0 <0.65 7.1 <0.65 7.1 <0.13 <0.21 <0.026 98.5 0.4 1 Deg.Gas,(FCM),(BO)
Initial Calibrator QC check OK Final FCM QC Check OK 97.7 %
Results generated by a QED HC-1 analyser. Concentration values in mg/kg for soil samples and mg/L for water samples. Soil values are not corrected for moisture or stone content
Fingerprints provide a tentative hydrocarbon identification. The abbreviations are:- FCM = Results calculated using Fundamental Calibration Mode : % = confidence for sample fingerprint match to library
(SBS) or (LBS) = Site Specific or Library Background Subtraction applied to result : (PFM) = Poor Fingerprint Match : (T) = Turbid : (P) = Particulate present
Ratios
QED Hydrocarbon Fingerprints
Project:PANTRY #176 12/7/2022
700
RL-6 (15') @ 2:10 PM : PHC not detected,(BO)
2287
RL-6 (20') @ 2:15 PM : ,(FCM),(BO)
1740
RL-6 (25') @ 2:20 PM : Deg.Diesel 74.7%,(FCM)
1421
RL-6 (30') @ 2:38 PM : Deg.Gas,(FCM),(BO)
1701
RL-7 (15') @ 2:42 PM : ,(FCM),(BO)
4470
RL-7 (20') @ 2:48 PM : Deg.Diesel 82%,(FCM),(P)
3244
RL-7 (25') @ 2:54 PM : Deg.Kerosene
2176
RL-7 (30') @ 2:57 PM : Deg.Gas,(FCM),(BO)
Hydrocarbon Analysis Results
Client:ATC Samples taken Wednesday, December 7, 2022
Address:208 MAIN STREET Samples extracted Wednesday, December 7, 2022
CLAYTON, NC Samples analysed Wednesday, December 7, 2022
Contact:MAUREEN JACKSON Operator CLAIRE NAKAMURA
Project:PANTRY #176
30 U04049
Matrix Sample ID Dilution
used
BTEX
(C6 - C9)
GRO
(C5 - C10)
DRO
(C10 - C35)
TPH
(C5 - C35)
Total
Aromatics
(C10-C35)
16 EPA
PAHs BaP HC Fingerprint Match
% light % mid %
heavy
s RL-8 (15') @ 3:20 PM 11.1 <0.28 7.7 3.3 11 2.1 <0.09 <0.011 93.6 4.6 1.8 Deg.Fuel 80.2%,(FCM),(BO),(P)
s RL-8 (20') @ 3:28 PM 210.0 <5.2 1219 1088 2307 40.7 <1.7 <0.21 100 0 0 Deg Gas 88.4%,(FCM)
s RL-8 (25') @ 3:30 PM 17.3 <0.43 204.8 <0.43 204.8 10.8 0.42 <0.017 99.9 0.1 0 Deg.Gas 91.8%,(FCM)
s RL-8 (30') @ 3:32 PM 17.9 <0.45 <0.45 <0.45 <0.45 <0.09 <0.14 <0.018 0 15.4 84.6 Residual HC,(BO)
s RL-5 (15') @ 3:48 PM 21.7 <0.54 <0.54 <0.54 0.35 0.35 <0.17 <0.022 0 31 69 Residual HC,(BO)
s RL-5 (20') @ 3:50 PM 10.8 <0.27 3.8 4.6 8.4 0.19 <0.09 <0.011 99.7 0.3 0 Deg.Diesel 82.2%,(FCM)
s RL-5 (25') @ 3:56 PM 163.0 <4.1 803.6 769.4 1573 29.1 <1.3 <0.16 100 0 0 Deg Gas 87.7%,(FCM)
s RL-5 (30') @ 4:01 PM 6.0 4.3 22.2 0.15 22.35 <0.03 <0.05 <0.006 100 0 0 Undeg.Gas 69.2%,(FCM),(BO),(P)
Initial Calibrator QC check OK Final FCM QC Check OK 102.8 %
Results generated by a QED HC-1 analyser. Concentration values in mg/kg for soil samples and mg/L for water samples. Soil values are not corrected for moisture or stone content
Fingerprints provide a tentative hydrocarbon identification. The abbreviations are:- FCM = Results calculated using Fundamental Calibration Mode : % = confidence for sample fingerprint match to library
(SBS) or (LBS) = Site Specific or Library Background Subtraction applied to result : (PFM) = Poor Fingerprint Match : (T) = Turbid : (P) = Particulate present
Ratios
QED Hydrocarbon Fingerprints
Project:PANTRY #176 12/7/2022
4325
RL-8 (15') @ 3:20 PM : Deg.Fuel
9268
RL-8 (20') @ 3:28 PM : Deg Gas 88.4%,(FCM)
18829
RL-8 (25') @ 3:30 PM : Deg.Gas 91.8%,(FCM)
896
RL-8 (30') @ 3:32 PM : Residual HC,(BO)
1542
RL-5 (15') @ 3:48 PM : Residual HC,(BO)
1139
RL-5 (20') @ 3:50 PM : Deg.Diesel 82.2%,(FCM)
7912
RL-5 (25') @ 3:56 PM : Deg Gas 87.7%,(FCM)
6701
RL-5 (30') @ 4:01 PM : Undeg.Gas

APPENDIX D
REGENESIS INFORMATION

1
Maureen Jackson
From:Tyler Harris <[e-mail]>
Sent:Wednesday, April 5, 2023 3:13 PM
To:Maureen Jackson
Cc:Andrew Kiggen; Daniel Pile
Subject:[EXTERNAL] Former Pantry 176 PersulfOx Revision
Attachments:Fmr Pantry 176_PersulfOx_Rev 1_4.3.23.pdf; Pantry 176 Treatment Map Rev 1
PersulfOx.pdf
[External Email] This email originated from outside of the Atlas mail system. Please use caution when opening
attachments.

Maureen,

I attached a map and outputs for a PersulfOx design. This is for two applications of PersulfOx 7 weeks apart. This is a
targeted treatment based on the soil data and PIDs that you were able to provide. We are calling for 25,290.9 lb of
PersulfOx total at $64,997.61. I’m estimating tax and shipping to be around $10,000, an estimated total of
$74,997.61. Our services department estimates 5 days for each application (10 days total) at $74,000 - $90,500. For a
more exact cost, they’d have to discuss logistics with you.

Considering the amount of mass on site and the 5,000 ppb goal, I think this PersulfOx design is the right fit. There is the
possibility that one or two wells need a little PetroFIx to control rebound and get across the finish line after this, but I
think the PersulfOx is a better fit for the site conditions.

Tyler Harris
PetroFix Design Specialist
o: 949-409-1784 c: 404-809-8807

For leading vapor intrusion mitigation, please
visit www.landsciencetech.com, a division of
REGENESIS

Confidentiality Note: This email may contain confidential and/or private information. If you received this
email in error please delete and notify sender.

Field App. Instructions
Application Method Direct Push
Spacing Within Rows (ft)6
Spacing Between Rows (ft)6
Target Treatment Zone (TTZ) Info Unit Value Injection Points (per app.)26
Treatment Area ft2 950 Number of Applications 2
Top Treat Depth ft 22.0 Areal Extent (square ft)950 Field Mixing Ratios
Bot Treat Depth ft 27.0 Top Application Depth (ft bgs)22 Water per Pt per app (gals)
Vertical Treatment Interval ft 5.0 Bottom Application Depth (ft bgs)27 74
Treatment Zone Volume ft3 4,750 PersulfOx to be Applied (lbs)7,053 PersulfOx per Pt per app (lbs)
Treatment Zone Volume cy 176 PersulfOx Solution %18%136
Soil Type ---clay Volume Water (gals)3,850 Total Volume per Pt per app (gals)
Porosity cm3/cm3 0.45 Total Volume (gals)4,203 81
Effective Porosity cm3/cm3 0.10 Per Application Totals
Treatment Zone Pore Volume gals 15,990 PersulfOx per app. (lbs)3,526 Volume per vertical ft (gals)
Treatment Zone Effective Pore Volume gals 3,553 Volume Water per app. (gals)1,925 16
Fraction Organic Carbon (foc)g/g 0.010 Total Volume per app. (gals)2,101
Soil Density g/cm3 1.5
Soil Density lb/ft3 94
Soil Weight lbs 4.4E+05
Hydraulic Conductivity ft/day 0.0
Hydraulic Conductivity cm/sec 3.53E-07
Hydraulic Gradient ft/ft 0.100
GW Velocity ft/day 0.00
GW Velocity ft/yr 0
Sources of Oxidant Demand Unit Value
Sorbed Phase Contaminant Mass lbs 45
Dissolved Phase Contaminant Mass lbs 7.6
Total Contaminant Mass lbs 53
Stoichiometric PersulfOx Demand lbs 1,780
Engineering/Safety Factor ---1.0
Stoichiometric PersulfOx Required lbs 1,780
Additional Soil Oxidant Demand g/kg 1.0
SOD PersulfOx Required lbs 494
Total PersulfOx Required lbs 2,274
PersulfOx Required lbs 7,053
Prepared By: Tyler Harris - PetroFIx Design Specialist
Date:4/5/2023
Technical Notes/Discussion
Application Dosing
Apply each application 7 weeks apart. Wait at least 8 weeks before sampling groundwater concentrations to decide
if a PetroFix application is needed.
MW-8 Hot Spot
Prepared For:
Maureen Jackson (Atlas)
Project Information PersulfOx® Application Design Summary
Clayton, NC MW-8 Hot Spot
Fmr Pantry 176
Fmr Pantry 176 --MW-8 Hot Spot
PersulfOx Required lbs 7,053 PersulfOx Package Type***# of packages lbs required
55.1 lb poly-lined bag 128 7,053
2,204 lb supersacks 4 7,053
Purchasing Information Currently Available Packaging Options
**Total Project cost is only an estimate; actual project cost may change as the final scope and/or RRS proposal are developed.
***Available Package Types are subject to change.
*Note that the combined tax and freight costs are preliminary estimates only. Please
contact your local sales manager or Customer Service at 949-366-8000 to obtain a shipping
quote. You will be asked to provide a ship-to address and estimated time of delivery.
Field App. Instructions
Application Method Direct Push
Spacing Within Rows (ft)6
Spacing Between Rows (ft)6
Target Treatment Zone (TTZ) Info Unit Value Injection Points (per app.)51
Treatment Area ft2 1,850 Number of Applications 2
Top Treat Depth ft 19.0 Areal Extent (square ft)1,850 Field Mixing Ratios
Bot Treat Depth ft 26.0 Top Application Depth (ft bgs)19 Water per Pt per app (gals)
Vertical Treatment Interval ft 7.0 Bottom Application Depth (ft bgs)26 98
Treatment Zone Volume ft3 12,950 PersulfOx to be Applied (lbs)18,238 PersulfOx per Pt per app (lbs)
Treatment Zone Volume cy 480 PersulfOx Solution %18%179
Soil Type ---clay Volume Water (gals)9,956 Total Volume per Pt per app (gals)
Porosity cm3/cm3 0.45 Total Volume (gals)10,868 107
Effective Porosity cm3/cm3 0.10 Per Application Totals
Treatment Zone Pore Volume gals 43,593 PersulfOx per app. (lbs)9,119 Volume per vertical ft (gals)
Treatment Zone Effective Pore Volume gals 9,687 Volume Water per app. (gals)4,978 15
Fraction Organic Carbon (foc)g/g 0.010 Total Volume per app. (gals)5,434
Soil Density g/cm3 1.5
Soil Density lb/ft3 94
Soil Weight lbs 1.2E+06
Hydraulic Conductivity ft/day 0.0
Hydraulic Conductivity cm/sec 3.53E-07
Hydraulic Gradient ft/ft 0.100
GW Velocity ft/day 0.00
GW Velocity ft/yr 0
Sources of Oxidant Demand Unit Value
Sorbed Phase Contaminant Mass lbs 0
Dissolved Phase Contaminant Mass lbs 0.0
Total Contaminant Mass lbs 0
Stoichiometric PersulfOx Demand lbs 2
Engineering/Safety Factor ---1.0
Stoichiometric PersulfOx Required lbs 2
Additional Soil Oxidant Demand g/kg 1.0
SOD PersulfOx Required lbs 1,347
Total PersulfOx Required lbs 1,349
PersulfOx Required lbs 18,238
Prepared By: Tyler Harris - PetroFIx Design Specialist
Date:4/5/2023
PersulfOx® Application Design SummaryProject Information
Fmr Pantry 176
Clayton, NC Plume Mass Reduction
Plume Mass Reduction
Prepared For:
Maureen Jackson (Atlas)
Technical Notes/Discussion
Apply each application 7 weeks apart. Wait at least 8 weeks before sampling groundwater concentrations to decide
if a PetroFix application is needed.
Application Dosing
Fmr Pantry 176 --Plume Mass Reduction
PersulfOx Required lbs 18,238 PersulfOx Package Type***# of packages lbs required
55.1 lb poly-lined bag 331 18,238
2,204 lb supersacks 9 18,238
Purchasing Information Currently Available Packaging Options
*Note that the combined tax and freight costs are preliminary estimates only. Please
contact your local sales manager or Customer Service at 949-366-8000 to obtain a shipping
quote. You will be asked to provide a ship-to address and estimated time of delivery.
**Total Project cost is only an estimate; actual project cost may change as the final scope and/or RRS proposal are developed.
***Available Package Types are subject to change.
(14,600)(4,200)(5,640)(1,910)(12,700)(NS)(NS)(DRY)(NL)(6,420)(12,000)(<0.50)(<0.50)(NS)(NS)(NS)(NS)(NS)(NS)(NS)(NS)(14,000)(5,000)(10,000)

APPENDIX E
HISTORICAL GROUNDWATER ELEVATION
MAPS

NM)

APPENDIX F
LABORATORY REPORT AND
CHAIN-OF-CUSTODY DOCUMENTS

01/06/23
Technical Report for
Atlas
Pantry #176, 208 Main Street, Clayton, NC
SGS Job Number: LA86197
Sampling Date: 12/13/22
Report to:
ATC Group Services LLC.
2725 East Millbrook Road Suite 121
Raleigh, NC 27604
[e-mail]
ATTN: Maureen Jackson
Total number of pages in report:
Certifications: LDEQ(2048), LDHH(LA150012), AR(14-045-04), AZ(AZ0805), FL(E87657), IL(200082), KY(#31),
NC(487), SC(73004001), NJ(LA007), TX(T104704186-18-16), WV(257)
This report shall not be reproduced, except in its entirety, without the written approval of SGS.
Test results relate only to samples analyzed.
SGS North America Inc. • 500 Ambassador Caffery • Scott, LA 70583 • tel: [phone]
Test results contained within this data package meet the requirements
of the National Environmental Laboratory Accreditation Program
and/or state specific certification programs as applicable.
Client Service contact: Rebecca Hebert 337-237-4775
Ron Benjamin
Lab Director
Scott, LA 01/06/23
e-Hardcopy 2.0
Automated Report
87
SGS is the sole authority for authorizing edits or modifications to this document.
Unauthorized modification of this report is strictly prohibited.
Review standard terms at: http://www.sgs.com/en/terms-and-conditions
The results set forth herein are provided by SGS North America Inc.
Please share your ideas about
how we can serve you better at:
[e-mail]
1 of 87
LA86197
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................5
Section 3: Sample Results ........................................................................................................11
3.1: LA86197-1: MW-1 .......................................................................................................12
3.2: LA86197-2: MW-2 .......................................................................................................15
3.3: LA86197-3: MW-3 .......................................................................................................18
3.4: LA86197-4: MW-4R ....................................................................................................21
3.5: LA86197-5: MW-5 .......................................................................................................24
3.6: LA86197-6: MW-6 .......................................................................................................27
3.7: LA86197-7: MW-7 .......................................................................................................30
3.8: LA86197-8: MW-8 .......................................................................................................33
3.9: LA86197-9: MW-9 .......................................................................................................36
3.10: LA86197-10: MW-10 .................................................................................................39
3.11: LA86197-11: MW-11 ..................................................................................................42
3.12: LA86197-12: MW-12 .................................................................................................45
3.13: LA86197-13: MW-13 .................................................................................................48
3.14: LA86197-14: MW-14 .................................................................................................51
3.15: LA86197-15: MW-15 .................................................................................................54
3.16: LA86197-16: MW-18 .................................................................................................57
3.17: LA86197-17: MW-19 .................................................................................................60
3.18: LA86197-18: MW-20 .................................................................................................63
3.19: LA86197-19: MW-21 .................................................................................................66
Section 4: Misc. Forms ............................................................................................................69
4.1: Chain of Custody ...........................................................................................................70
Section 5: MS Volatiles - QC Data Summaries .....................................................................76
5.1: Method Blank Summary ................................................................................................77
5.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................81
5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................85 123452 of 87
LA86197
SGS North America Inc.
Sample Summary
Atlas
Job No:LA86197
Pantry #176, 208 Main Street, Clayton, NC
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
This report contains results reported as ND = Not detected. The following applies:
Organics ND = Not detected above the MDL
LA86197-1 12/13/22 12:00 LD/AS12/15/22 AQ Ground Water MW-1
LA86197-2 12/13/22 12:15 LD/AS12/15/22 AQ Ground Water MW-2
LA86197-3 12/13/22 11:55 LD/AS12/15/22 AQ Ground Water MW-3
LA86197-4 12/13/22 14:05 LD/AS12/15/22 AQ Ground Water MW-4R
LA86197-5 12/13/22 14:10 LD/AS12/15/22 AQ Ground Water MW-5
LA86197-6 12/13/22 11:30 LD/AS12/15/22 AQ Ground Water MW-6
LA86197-7 12/13/22 11:40 LD/AS12/15/22 AQ Ground Water MW-7
LA86197-8 12/13/22 13:50 LD/AS12/15/22 AQ Ground Water MW-8
LA86197-9 12/13/22 12:10 LD/AS12/15/22 AQ Ground Water MW-9
LA86197-10 12/13/22 11:15 LD/AS12/15/22 AQ Ground Water MW-10
LA86197-11 12/13/22 10:55 LD/AS12/15/22 AQ Ground Water MW-11
LA86197-12 12/13/22 11:25 LD/AS12/15/22 AQ Ground Water MW-12
3 of 87
LA861971
SGS North America Inc.
Sample Summary
(continued)
Atlas
Job No:LA86197
Pantry #176, 208 Main Street, Clayton, NC
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
LA86197-13 12/13/22 10:45 LD/AS12/15/22 AQ Ground Water MW-13
LA86197-14 12/13/22 10:40 LD/AS12/15/22 AQ Ground Water MW-14
LA86197-15 12/13/22 11:10 LD/AS12/15/22 AQ Ground Water MW-15
LA86197-16 12/13/22 14:20 LD/AS12/15/22 AQ Ground Water MW-18
LA86197-17 12/13/22 13:20 LD/AS12/15/22 AQ Ground Water MW-19
LA86197-18 12/13/22 10:50 LD/AS12/15/22 AQ Ground Water MW-20
LA86197-19 12/13/22 13:40 LD/AS12/15/22 AQ Ground Water MW-21
4 of 87
LA861971
Summary of Hits Page 1 of 6
Job Number:LA86197
Account:Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Collected:12/13/22
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA86197-1 MW-1
Benzene 107 100 54 ug/l SM 6200B
Ethylbenzene 1770 100 40 ug/l SM 6200B
2-Hexanone 225 200 84 ug/l SM 6200B
Isopropylbenzene 40.1 J 100 26 ug/l SM 6200B
Naphthalene 597 100 20 ug/l SM 6200B
n-Propylbenzene 106 100 44 ug/l SM 6200B
Toluene 14200 100 59 ug/l SM 6200B
1,2,4-Trimethylbenzene 1050 100 29 ug/l SM 6200B
1,3,5-Trimethylbenzene 239 100 32 ug/l SM 6200B
m,p-Xylene 6640 200 67 ug/l SM 6200B
o-Xylene 3260 100 30 ug/l SM 6200B
Xylene (total)9900 100 32 ug/l SM 6200B
LA86197-2 MW-2
Acetone 955 J 2000 250 ug/l SM 6200B
Benzene 4230 100 54 ug/l SM 6200B
Di-Isopropyl Ether 59.7 J 100 15 ug/l SM 6200B
Ethylbenzene 1680 100 40 ug/l SM 6200B
2-Hexanone 240 200 84 ug/l SM 6200B
Isopropylbenzene 43.7 J 100 26 ug/l SM 6200B
Naphthalene 751 100 20 ug/l SM 6200B
n-Propylbenzene 132 100 44 ug/l SM 6200B
Styrene 104 100 25 ug/l SM 6200B
Toluene 17900 100 59 ug/l SM 6200B
1,2,4-Trimethylbenzene 1410 100 29 ug/l SM 6200B
1,3,5-Trimethylbenzene 349 100 32 ug/l SM 6200B
m,p-Xylene 6950 200 67 ug/l SM 6200B
o-Xylene 3650 100 30 ug/l SM 6200B
Xylene (total)10600 100 32 ug/l SM 6200B
LA86197-3 MW-3
Acetone a 326 J 500 62 ug/l SM 6200B
Ethylbenzene a 663 25 10 ug/l SM 6200B
Isopropylbenzene a 11.1 J 25 6.6 ug/l SM 6200B
Naphthalene a 564 25 5.0 ug/l SM 6200B
n-Propylbenzene a 77.9 25 11 ug/l SM 6200B
Toluene a 1410 25 15 ug/l SM 6200B
1,2,4-Trimethylbenzene a 873 25 7.3 ug/l SM 6200B
1,3,5-Trimethylbenzene a 221 25 8.1 ug/l SM 6200B
m,p-Xylene a 2730 50 17 ug/l SM 6200B
o-Xylene a 1350 25 7.4 ug/l SM 6200B
5 of 87
LA861972
Summary of Hits Page 2 of 6
Job Number:LA86197
Account:Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Collected:12/13/22
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
Xylene (total) a 4090 25 8.1 ug/l SM 6200B
LA86197-4 MW-4R
Acetone 633 500 62 ug/l SM 6200B
Benzene b 15700 250 140 ug/l SM 6200B
sec-Butylbenzene 21.8 J 25 7.1 ug/l SM 6200B
1,2-Dichloroethane 945 10 6.1 ug/l SM 6200B
Di-Isopropyl Ether 3400 25 3.7 ug/l SM 6200B
Ethylbenzene 978 25 10 ug/l SM 6200B
Isopropylbenzene 13.4 J 25 6.6 ug/l SM 6200B
Methyl Tert Butyl Ether 462 25 3.4 ug/l SM 6200B
Naphthalene 281 25 5.0 ug/l SM 6200B
n-Propylbenzene 35.7 25 11 ug/l SM 6200B
Styrene 46.1 25 6.3 ug/l SM 6200B
Toluene b 22500 250 150 ug/l SM 6200B
1,2,4-Trimethylbenzene 401 25 7.3 ug/l SM 6200B
1,3,5-Trimethylbenzene 101 25 8.1 ug/l SM 6200B
m,p-Xylene 3570 50 17 ug/l SM 6200B
o-Xylene 1750 25 7.4 ug/l SM 6200B
Xylene (total)5320 25 8.1 ug/l SM 6200B
LA86197-5 MW-5
Benzene 5790 100 54 ug/l SM 6200B
1,2-Dichloroethane 42.3 40 24 ug/l SM 6200B
Di-Isopropyl Ether 98.5 J 100 15 ug/l SM 6200B
Ethylbenzene 889 100 40 ug/l SM 6200B
Naphthalene 842 100 20 ug/l SM 6200B
n-Propylbenzene 88.4 J 100 44 ug/l SM 6200B
Styrene 67.6 J 100 25 ug/l SM 6200B
Toluene 19200 100 59 ug/l SM 6200B
1,2,4-Trimethylbenzene 957 100 29 ug/l SM 6200B
1,3,5-Trimethylbenzene 248 100 32 ug/l SM 6200B
m,p-Xylene 3450 200 67 ug/l SM 6200B
o-Xylene 1960 100 30 ug/l SM 6200B
Xylene (total)5420 100 32 ug/l SM 6200B
LA86197-6 MW-6
Acetone c 246 100 12 ug/l SM 6200B
Benzene c 66.2 5.0 2.7 ug/l SM 6200B
Ethylbenzene c 464 5.0 2.0 ug/l SM 6200B
Isopropylbenzene c 57.7 5.0 1.3 ug/l SM 6200B
Naphthalene c 475 5.0 1.0 ug/l SM 6200B
6 of 87
LA861972
Summary of Hits Page 3 of 6
Job Number:LA86197
Account:Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Collected:12/13/22
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
n-Propylbenzene c 227 5.0 2.2 ug/l SM 6200B
Toluene c 3.2 J 5.0 2.9 ug/l SM 6200B
1,2,4-Trimethylbenzene 859 25 7.3 ug/l SM 6200B
1,3,5-Trimethylbenzene c 515 5.0 1.6 ug/l SM 6200B
m,p-Xylene c 264 10 3.4 ug/l SM 6200B
Xylene (total) c 264 5.0 1.6 ug/l SM 6200B
LA86197-7 MW-7
Acetone 1110 1000 120 ug/l SM 6200B
Ethylbenzene 2340 50 20 ug/l SM 6200B
Isopropylbenzene 49.9 J 50 13 ug/l SM 6200B
Naphthalene 1030 50 10 ug/l SM 6200B
n-Propylbenzene 168 50 22 ug/l SM 6200B
Styrene 107 50 13 ug/l SM 6200B
Toluene 7080 50 29 ug/l SM 6200B
1,2,4-Trimethylbenzene 1860 50 15 ug/l SM 6200B
1,3,5-Trimethylbenzene 488 50 16 ug/l SM 6200B
m,p-Xylene 9800 100 34 ug/l SM 6200B
o-Xylene 5070 50 15 ug/l SM 6200B
Xylene (total)14900 50 16 ug/l SM 6200B
LA86197-8 MW-8
Acetone 1040 J 2000 250 ug/l SM 6200B
Benzene b 12300 500 270 ug/l SM 6200B
1,2-Dichloroethane 117 40 24 ug/l SM 6200B
Di-Isopropyl Ether 821 100 15 ug/l SM 6200B
Ethylbenzene 2280 100 40 ug/l SM 6200B
Isopropylbenzene 38.5 J 100 26 ug/l SM 6200B
Naphthalene 701 100 20 ug/l SM 6200B
n-Propylbenzene 106 100 44 ug/l SM 6200B
Styrene 221 100 25 ug/l SM 6200B
Toluene b 26200 500 290 ug/l SM 6200B
1,2,4-Trimethylbenzene 1180 100 29 ug/l SM 6200B
1,3,5-Trimethylbenzene 292 100 32 ug/l SM 6200B
m,p-Xylene 9130 200 67 ug/l SM 6200B
o-Xylene 4890 100 30 ug/l SM 6200B
Xylene (total)14000 100 32 ug/l SM 6200B
LA86197-9 MW-9
Acetone a 60.2 10 1.2 ug/l SM 6200B
Toluene a 0.33 J 0.50 0.29 ug/l SM 6200B
7 of 87
LA861972
Summary of Hits Page 4 of 6
Job Number:LA86197
Account:Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Collected:12/13/22
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA86197-10 MW-10
Acetone b 7.2 J 10 1.2 ug/l SM 6200B
Benzene b 0.30 J 0.50 0.27 ug/l SM 6200B
Ethylbenzene b 0.77 0.50 0.20 ug/l SM 6200B
Naphthalene b 0.33 J 0.50 0.10 ug/l SM 6200B
n-Propylbenzene b 0.42 J 0.50 0.22 ug/l SM 6200B
Toluene b 2.7 0.50 0.29 ug/l SM 6200B
1,2,4-Trimethylbenzene b 2.9 0.50 0.15 ug/l SM 6200B
1,3,5-Trimethylbenzene b 0.85 0.50 0.16 ug/l SM 6200B
m,p-Xylene b 2.6 1.0 0.34 ug/l SM 6200B
o-Xylene b 1.3 0.50 0.15 ug/l SM 6200B
Xylene (total) b 3.9 0.50 0.16 ug/l SM 6200B
LA86197-11 MW-11
Acetone 180 10 1.2 ug/l SM 6200B
sec-Butylbenzene 2.5 0.50 0.14 ug/l SM 6200B
Ethylbenzene 3.3 0.50 0.20 ug/l SM 6200B
Isopropylbenzene 6.1 0.50 0.13 ug/l SM 6200B
Naphthalene 3.0 0.50 0.10 ug/l SM 6200B
n-Propylbenzene 33.1 0.50 0.22 ug/l SM 6200B
Toluene d 4.0 2.5 1.5 ug/l SM 6200B
1,2,4-Trimethylbenzene d 123 2.5 0.73 ug/l SM 6200B
1,3,5-Trimethylbenzene 31.6 0.50 0.16 ug/l SM 6200B
m,p-Xylene 4.8 1.0 0.34 ug/l SM 6200B
Xylene (total)4.8 0.50 0.16 ug/l SM 6200B
LA86197-12 MW-12
Benzene 3710 100 54 ug/l SM 6200B
Di-Isopropyl Ether 207 100 15 ug/l SM 6200B
Ethylbenzene 1470 100 40 ug/l SM 6200B
Naphthalene 524 100 20 ug/l SM 6200B
n-Propylbenzene 75.2 J 100 44 ug/l SM 6200B
Styrene 109 100 25 ug/l SM 6200B
Toluene 12600 100 59 ug/l SM 6200B
1,2,4-Trimethylbenzene 887 100 29 ug/l SM 6200B
1,3,5-Trimethylbenzene 219 100 32 ug/l SM 6200B
m,p-Xylene 5990 200 67 ug/l SM 6200B
o-Xylene 2460 100 30 ug/l SM 6200B
Xylene (total)8450 100 32 ug/l SM 6200B
8 of 87
LA861972
Summary of Hits Page 5 of 6
Job Number:LA86197
Account:Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Collected:12/13/22
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA86197-13 MW-13
Benzene 4250 25 14 ug/l SM 6200B
1,2-Dichloroethane 781 10 6.1 ug/l SM 6200B
Di-Isopropyl Ether 2580 25 3.7 ug/l SM 6200B
Ethylbenzene 196 25 10 ug/l SM 6200B
Isopropylbenzene 8.2 J 25 6.6 ug/l SM 6200B
Methyl Tert Butyl Ether 1260 25 3.4 ug/l SM 6200B
Naphthalene 203 25 5.0 ug/l SM 6200B
Toluene 185 25 15 ug/l SM 6200B
1,2,4-Trimethylbenzene 63.8 25 7.3 ug/l SM 6200B
1,3,5-Trimethylbenzene 26.1 25 8.1 ug/l SM 6200B
m,p-Xylene 306 50 17 ug/l SM 6200B
o-Xylene 75.3 25 7.4 ug/l SM 6200B
Xylene (total)381 25 8.1 ug/l SM 6200B
LA86197-14 MW-14
Acetone 74.5 10 1.2 ug/l SM 6200B
Benzene e 805 10 5.4 ug/l SM 6200B
Bromodichloromethane 0.30 J 0.50 0.18 ug/l SM 6200B
sec-Butylbenzene 0.18 J 0.50 0.14 ug/l SM 6200B
Chloroform 5.0 0.50 0.094 ug/l SM 6200B
1,2-Dibromoethane 2.9 0.50 0.24 ug/l SM 6200B
1,2-Dichloroethane 6.8 0.20 0.12 ug/l SM 6200B
Di-Isopropyl Ether 96.1 0.50 0.073 ug/l SM 6200B
Ethylbenzene 9.8 0.50 0.20 ug/l SM 6200B
Isopropylbenzene 4.4 0.50 0.13 ug/l SM 6200B
Naphthalene 53.9 0.50 0.10 ug/l SM 6200B
n-Propylbenzene 0.68 0.50 0.22 ug/l SM 6200B
Toluene 33.1 0.50 0.29 ug/l SM 6200B
1,2,4-Trimethylbenzene 5.9 0.50 0.15 ug/l SM 6200B
m,p-Xylene 190 1.0 0.34 ug/l SM 6200B
o-Xylene 33.8 0.50 0.15 ug/l SM 6200B
Xylene (total)224 0.50 0.16 ug/l SM 6200B
LA86197-15 MW-15
Acetone f 293 100 12 ug/l SM 6200B
Benzene 0.30 J 0.50 0.27 ug/l SM 6200B
Ethylbenzene g 1380 E 5.0 2.0 ug/l SM 6200B
Isopropylbenzene 27.5 0.50 0.13 ug/l SM 6200B
Naphthalene f 822 5.0 1.0 ug/l SM 6200B
n-Propylbenzene 86.2 0.50 0.22 ug/l SM 6200B
Styrene 20.2 0.50 0.13 ug/l SM 6200B
9 of 87
LA861972
Summary of Hits Page 6 of 6
Job Number:LA86197
Account:Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Collected:12/13/22
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
Toluene f 596 5.0 2.9 ug/l SM 6200B
1,2,4-Trimethylbenzene f 861 5.0 1.5 ug/l SM 6200B
1,3,5-Trimethylbenzene f 297 5.0 1.6 ug/l SM 6200B
m,p-Xylene f 1030 10 3.4 ug/l SM 6200B
o-Xylene f 449 5.0 1.5 ug/l SM 6200B
Xylene (total) f 1480 5.0 1.6 ug/l SM 6200B
LA86197-16 MW-18
Benzene 14500 250 140 ug/l SM 6200B
1,2-Dichloroethane 674 100 61 ug/l SM 6200B
Di-Isopropyl Ether 2380 250 37 ug/l SM 6200B
Ethylbenzene 1370 250 100 ug/l SM 6200B
Methyl Tert Butyl Ether 1000 250 34 ug/l SM 6200B
Naphthalene 1410 250 50 ug/l SM 6200B
Toluene 28200 250 150 ug/l SM 6200B
1,2,4-Trimethylbenzene 1200 250 73 ug/l SM 6200B
1,3,5-Trimethylbenzene 342 250 81 ug/l SM 6200B
m,p-Xylene 5260 500 170 ug/l SM 6200B
o-Xylene 2760 250 74 ug/l SM 6200B
Xylene (total)8020 250 81 ug/l SM 6200B
LA86197-17 MW-19
Chloroform 0.35 J 0.50 0.094 ug/l SM 6200B
Naphthalene 0.30 J 0.50 0.10 ug/l SM 6200B
LA86197-18 MW-20
No hits reported in this sample.
LA86197-19 MW-21
No hits reported in this sample.
(a) Internal standards are not within control limits due to matrix interference. Confirmed by reanalysis.
(b) Internal standards are not within control limits. Insufficient hold time remains for re-analysis.
(c) Internal standards are not within control limits due to matrix interference. Confirmed by reanalysis at a
dilution.
(d) Sample analyzed beyond hold time.
(e) Sample analyzed beyond hold time. rr ISTD failed
(f) Sample analyzed beyond hold time. rr f/d
(g) Sample analyzed beyond hold time. rr f/d Unable to analyze at a higher dilution prior to sample expiration.
10 of 87
LA861972
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
11 of 87
LA861973
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-1
Lab Sample ID:LA86197-1 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G508989.D 200 12/27/22 11:07 MB n/a n/a V2G6427
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 2000 250 ug/l
71-43-2 Benzene 107 100 54 ug/l
108-86-1 Bromobenzene ND 100 36 ug/l
74-97-5 Bromochloromethane ND 100 24 ug/l
75-27-4 Bromodichloromethane ND 100 36 ug/l
75-25-2 Bromoform ND 100 20 ug/l
104-51-8 n-Butylbenzene ND 100 18 ug/l
135-98-8 sec-Butylbenzene ND 100 28 ug/l
98-06-6 tert-Butylbenzene ND 100 32 ug/l
56-23-5 Carbon Tetrachloride ND 40 18 ug/l
108-90-7 Chlorobenzene ND 100 33 ug/l
75-00-3 Chloroethane ND 100 11 ug/l
67-66-3 Chloroform ND 100 19 ug/l
95-49-8 o-Chlorotoluene ND 100 33 ug/l
106-43-4 p-Chlorotoluene ND 100 40 ug/l
124-48-1 Dibromochloromethane ND 40 15 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 100 26 ug/l
106-93-4 1,2-Dibromoethane ND 100 47 ug/l
75-71-8 Dichlorodifluoromethane ND 100 24 ug/l
541-73-1 m-Dichlorobenzene ND 100 13 ug/l
95-50-1 o-Dichlorobenzene ND 100 39 ug/l
106-46-7 p-Dichlorobenzene ND 100 43 ug/l
75-34-3 1,1-Dichloroethane ND 100 21 ug/l
107-06-2 1,2-Dichloroethane ND 40 24 ug/l
75-35-4 1,1-Dichloroethylene ND 100 19 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 100 22 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 100 31 ug/l
78-87-5 1,2-Dichloropropane ND 60 25 ug/l
142-28-9 1,3-Dichloropropane ND 100 41 ug/l
594-20-7 2,2-Dichloropropane ND 100 16 ug/l
563-58-6 1,1-Dichloropropene ND 100 23 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 40 20 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
12 of 87
LA8619733.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-1
Lab Sample ID:LA86197-1 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 40 11 ug/l
108-20-3 Di-Isopropyl Ether ND 100 15 ug/l
64-17-5 Ethyl Alcohol a ND 10000 1700 ug/l
100-41-4 Ethylbenzene 1770 100 40 ug/l
591-78-6 2-Hexanone 225 200 84 ug/l
87-68-3 Hexachlorobutadiene ND 40 22 ug/l
98-82-8 Isopropylbenzene 40.1 100 26 ug/l J
99-87-6 p-Isopropyltoluene ND 100 26 ug/l
74-83-9 Methyl Bromide ND 100 46 ug/l
74-87-3 Methyl Chloride ND 100 13 ug/l
74-95-3 Methylene Bromide ND 100 23 ug/l
75-09-2 Methylene Chloride ND 100 16 ug/l
78-93-3 Methyl Ethyl Ketone ND 5000 57 ug/l
108-10-1 4-Methyl-2-pentanone ND 100 48 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 100 14 ug/l
91-20-3 Naphthalene 597 100 20 ug/l
103-65-1 n-Propylbenzene 106 100 44 ug/l
100-42-5 Styrene ND 100 25 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 100 37 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 40 25 ug/l
127-18-4 Tetrachloroethylene ND 100 45 ug/l
108-88-3 Toluene 14200 100 59 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 100 32 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 100 34 ug/l
71-55-6 1,1,1-Trichloroethane ND 100 33 ug/l
79-00-5 1,1,2-Trichloroethane ND 60 35 ug/l
79-01-6 Trichloroethylene ND 100 36 ug/l
75-69-4 Trichlorofluoromethane ND 100 15 ug/l
96-18-4 1,2,3-Trichloropropane ND 100 4.5 ug/l
95-63-6 1,2,4-Trimethylbenzene 1050 100 29 ug/l
108-67-8 1,3,5-Trimethylbenzene 239 100 32 ug/l
108-05-4 Vinyl Acetate ND 100 14 ug/l
75-01-4 Vinyl Chloride ND 20 15 ug/l
m,p-Xylene 6640 200 67 ug/l
95-47-6 o-Xylene 3260 100 30 ug/l
1330-20-7 Xylene (total)9900 100 32 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 114%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
13 of 87
LA8619733.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-1
Lab Sample ID:LA86197-1 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 102%70-130%
460-00-4 4-Bromofluorobenzene 112%70-130%
(a) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
14 of 87
LA8619733.1
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-2
Lab Sample ID:LA86197-2 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G508990.D 200 12/27/22 11:31 MB n/a n/a V2G6427
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 955 2000 250 ug/l J
71-43-2 Benzene 4230 100 54 ug/l
108-86-1 Bromobenzene ND 100 36 ug/l
74-97-5 Bromochloromethane ND 100 24 ug/l
75-27-4 Bromodichloromethane ND 100 36 ug/l
75-25-2 Bromoform ND 100 20 ug/l
104-51-8 n-Butylbenzene ND 100 18 ug/l
135-98-8 sec-Butylbenzene ND 100 28 ug/l
98-06-6 tert-Butylbenzene ND 100 32 ug/l
56-23-5 Carbon Tetrachloride ND 40 18 ug/l
108-90-7 Chlorobenzene ND 100 33 ug/l
75-00-3 Chloroethane ND 100 11 ug/l
67-66-3 Chloroform ND 100 19 ug/l
95-49-8 o-Chlorotoluene ND 100 33 ug/l
106-43-4 p-Chlorotoluene ND 100 40 ug/l
124-48-1 Dibromochloromethane ND 40 15 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 100 26 ug/l
106-93-4 1,2-Dibromoethane ND 100 47 ug/l
75-71-8 Dichlorodifluoromethane ND 100 24 ug/l
541-73-1 m-Dichlorobenzene ND 100 13 ug/l
95-50-1 o-Dichlorobenzene ND 100 39 ug/l
106-46-7 p-Dichlorobenzene ND 100 43 ug/l
75-34-3 1,1-Dichloroethane ND 100 21 ug/l
107-06-2 1,2-Dichloroethane ND 40 24 ug/l
75-35-4 1,1-Dichloroethylene ND 100 19 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 100 22 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 100 31 ug/l
78-87-5 1,2-Dichloropropane ND 60 25 ug/l
142-28-9 1,3-Dichloropropane ND 100 41 ug/l
594-20-7 2,2-Dichloropropane ND 100 16 ug/l
563-58-6 1,1-Dichloropropene ND 100 23 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 40 20 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
15 of 87
LA8619733.2
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-2
Lab Sample ID:LA86197-2 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 40 11 ug/l
108-20-3 Di-Isopropyl Ether 59.7 100 15 ug/l J
64-17-5 Ethyl Alcohol a ND 10000 1700 ug/l
100-41-4 Ethylbenzene 1680 100 40 ug/l
591-78-6 2-Hexanone 240 200 84 ug/l
87-68-3 Hexachlorobutadiene ND 40 22 ug/l
98-82-8 Isopropylbenzene 43.7 100 26 ug/l J
99-87-6 p-Isopropyltoluene ND 100 26 ug/l
74-83-9 Methyl Bromide ND 100 46 ug/l
74-87-3 Methyl Chloride ND 100 13 ug/l
74-95-3 Methylene Bromide ND 100 23 ug/l
75-09-2 Methylene Chloride ND 100 16 ug/l
78-93-3 Methyl Ethyl Ketone ND 5000 57 ug/l
108-10-1 4-Methyl-2-pentanone ND 100 48 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 100 14 ug/l
91-20-3 Naphthalene 751 100 20 ug/l
103-65-1 n-Propylbenzene 132 100 44 ug/l
100-42-5 Styrene 104 100 25 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 100 37 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 40 25 ug/l
127-18-4 Tetrachloroethylene ND 100 45 ug/l
108-88-3 Toluene 17900 100 59 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 100 32 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 100 34 ug/l
71-55-6 1,1,1-Trichloroethane ND 100 33 ug/l
79-00-5 1,1,2-Trichloroethane ND 60 35 ug/l
79-01-6 Trichloroethylene ND 100 36 ug/l
75-69-4 Trichlorofluoromethane ND 100 15 ug/l
96-18-4 1,2,3-Trichloropropane ND 100 4.5 ug/l
95-63-6 1,2,4-Trimethylbenzene 1410 100 29 ug/l
108-67-8 1,3,5-Trimethylbenzene 349 100 32 ug/l
108-05-4 Vinyl Acetate ND 100 14 ug/l
75-01-4 Vinyl Chloride ND 20 15 ug/l
m,p-Xylene 6950 200 67 ug/l
95-47-6 o-Xylene 3650 100 30 ug/l
1330-20-7 Xylene (total)10600 100 32 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 106%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
16 of 87
LA8619733.2
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-2
Lab Sample ID:LA86197-2 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 101%70-130%
460-00-4 4-Bromofluorobenzene 111%70-130%
(a) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
17 of 87
LA8619733.2
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-3
Lab Sample ID:LA86197-3 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a 2G508991.D 50 12/27/22 11:56 MB n/a n/a V2G6427
Run #2 b 2G509016.D 20 12/27/22 22:39 MB n/a n/a V2G6428
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 326 500 62 ug/l J
71-43-2 Benzene ND 25 14 ug/l
108-86-1 Bromobenzene ND 25 9.1 ug/l
74-97-5 Bromochloromethane ND 25 6.1 ug/l
75-27-4 Bromodichloromethane ND 25 9.0 ug/l
75-25-2 Bromoform ND 25 5.0 ug/l
104-51-8 n-Butylbenzene ND 25 4.6 ug/l
135-98-8 sec-Butylbenzene ND 25 7.1 ug/l
98-06-6 tert-Butylbenzene ND 25 7.9 ug/l
56-23-5 Carbon Tetrachloride ND 10 4.6 ug/l
108-90-7 Chlorobenzene ND 25 8.2 ug/l
75-00-3 Chloroethane ND 25 2.8 ug/l
67-66-3 Chloroform ND 25 4.7 ug/l
95-49-8 o-Chlorotoluene ND 25 8.2 ug/l
106-43-4 p-Chlorotoluene ND 25 10 ug/l
124-48-1 Dibromochloromethane ND 10 3.7 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 25 6.4 ug/l
106-93-4 1,2-Dibromoethane ND 25 12 ug/l
75-71-8 Dichlorodifluoromethane ND 25 6.1 ug/l
541-73-1 m-Dichlorobenzene ND 25 3.2 ug/l
95-50-1 o-Dichlorobenzene ND 25 9.8 ug/l
106-46-7 p-Dichlorobenzene ND 25 11 ug/l
75-34-3 1,1-Dichloroethane ND 25 5.2 ug/l
107-06-2 1,2-Dichloroethane ND 10 6.1 ug/l
75-35-4 1,1-Dichloroethylene ND 25 4.7 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 25 5.5 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 25 7.7 ug/l
78-87-5 1,2-Dichloropropane ND 15 6.3 ug/l
142-28-9 1,3-Dichloropropane ND 25 10 ug/l
594-20-7 2,2-Dichloropropane ND 25 4.0 ug/l
563-58-6 1,1-Dichloropropene ND 25 5.8 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 10 5.1 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
18 of 87
LA8619733.3
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-3
Lab Sample ID:LA86197-3 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 10 2.8 ug/l
108-20-3 Di-Isopropyl Ether ND 25 3.7 ug/l
64-17-5 Ethyl Alcohol c ND 2500 420 ug/l
100-41-4 Ethylbenzene 663 25 10 ug/l
591-78-6 2-Hexanone ND 50 21 ug/l
87-68-3 Hexachlorobutadiene ND 10 5.5 ug/l
98-82-8 Isopropylbenzene 11.1 25 6.6 ug/l J
99-87-6 p-Isopropyltoluene ND 25 6.5 ug/l
74-83-9 Methyl Bromide ND 25 11 ug/l
74-87-3 Methyl Chloride ND 25 3.3 ug/l
74-95-3 Methylene Bromide ND 25 5.7 ug/l
75-09-2 Methylene Chloride ND 25 4.0 ug/l
78-93-3 Methyl Ethyl Ketone ND 1300 14 ug/l
108-10-1 4-Methyl-2-pentanone ND 25 12 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 25 3.4 ug/l
91-20-3 Naphthalene 564 25 5.0 ug/l
103-65-1 n-Propylbenzene 77.9 25 11 ug/l
100-42-5 Styrene ND 25 6.3 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 25 9.2 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 10 6.2 ug/l
127-18-4 Tetrachloroethylene ND 25 11 ug/l
108-88-3 Toluene 1410 25 15 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 25 8.0 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 25 8.5 ug/l
71-55-6 1,1,1-Trichloroethane ND 25 8.2 ug/l
79-00-5 1,1,2-Trichloroethane ND 15 8.7 ug/l
79-01-6 Trichloroethylene ND 25 9.0 ug/l
75-69-4 Trichlorofluoromethane ND 25 3.7 ug/l
96-18-4 1,2,3-Trichloropropane ND 25 1.1 ug/l
95-63-6 1,2,4-Trimethylbenzene 873 25 7.3 ug/l
108-67-8 1,3,5-Trimethylbenzene 221 25 8.1 ug/l
108-05-4 Vinyl Acetate ND 25 3.4 ug/l
75-01-4 Vinyl Chloride ND 5.0 3.8 ug/l
m,p-Xylene 2730 50 17 ug/l
95-47-6 o-Xylene 1350 25 7.4 ug/l
1330-20-7 Xylene (total)4090 25 8.1 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 83%112%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
19 of 87
LA8619733.3
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-3
Lab Sample ID:LA86197-3 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 102%101%70-130%
460-00-4 4-Bromofluorobenzene 78%111%70-130%
(a) Internal standards are not within control limits due to matrix interference. Confirmed by reanalysis.
(b) Confirmation run for internal standard areas.
(c) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
20 of 87
LA8619733.3
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-4R
Lab Sample ID:LA86197-4 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G508992.D 50 12/27/22 12:20 MB n/a n/a V2G6427
Run #2 a 2G509017.D 500 12/27/22 23:03 MB n/a n/a V2G6428
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 633 500 62 ug/l
71-43-2 Benzene 15700 b 250 140 ug/l
108-86-1 Bromobenzene ND 25 9.1 ug/l
74-97-5 Bromochloromethane ND 25 6.1 ug/l
75-27-4 Bromodichloromethane ND 25 9.0 ug/l
75-25-2 Bromoform ND 25 5.0 ug/l
104-51-8 n-Butylbenzene ND 25 4.6 ug/l
135-98-8 sec-Butylbenzene 21.8 25 7.1 ug/l J
98-06-6 tert-Butylbenzene ND 25 7.9 ug/l
56-23-5 Carbon Tetrachloride ND 10 4.6 ug/l
108-90-7 Chlorobenzene ND 25 8.2 ug/l
75-00-3 Chloroethane ND 25 2.8 ug/l
67-66-3 Chloroform ND 25 4.7 ug/l
95-49-8 o-Chlorotoluene ND 25 8.2 ug/l
106-43-4 p-Chlorotoluene ND 25 10 ug/l
124-48-1 Dibromochloromethane ND 10 3.7 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 25 6.4 ug/l
106-93-4 1,2-Dibromoethane ND 25 12 ug/l
75-71-8 Dichlorodifluoromethane ND 25 6.1 ug/l
541-73-1 m-Dichlorobenzene ND 25 3.2 ug/l
95-50-1 o-Dichlorobenzene ND 25 9.8 ug/l
106-46-7 p-Dichlorobenzene ND 25 11 ug/l
75-34-3 1,1-Dichloroethane ND 25 5.2 ug/l
107-06-2 1,2-Dichloroethane 945 10 6.1 ug/l
75-35-4 1,1-Dichloroethylene ND 25 4.7 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 25 5.5 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 25 7.7 ug/l
78-87-5 1,2-Dichloropropane ND 15 6.3 ug/l
142-28-9 1,3-Dichloropropane ND 25 10 ug/l
594-20-7 2,2-Dichloropropane ND 25 4.0 ug/l
563-58-6 1,1-Dichloropropene ND 25 5.8 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 10 5.1 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
21 of 87
LA8619733.4
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-4R
Lab Sample ID:LA86197-4 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 10 2.8 ug/l
108-20-3 Di-Isopropyl Ether 3400 25 3.7 ug/l
64-17-5 Ethyl Alcohol c ND 2500 420 ug/l
100-41-4 Ethylbenzene 978 25 10 ug/l
591-78-6 2-Hexanone ND 50 21 ug/l
87-68-3 Hexachlorobutadiene ND 10 5.5 ug/l
98-82-8 Isopropylbenzene 13.4 25 6.6 ug/l J
99-87-6 p-Isopropyltoluene ND 25 6.5 ug/l
74-83-9 Methyl Bromide ND 25 11 ug/l
74-87-3 Methyl Chloride ND 25 3.3 ug/l
74-95-3 Methylene Bromide ND 25 5.7 ug/l
75-09-2 Methylene Chloride ND 25 4.0 ug/l
78-93-3 Methyl Ethyl Ketone ND 1300 14 ug/l
108-10-1 4-Methyl-2-pentanone ND 25 12 ug/l
1634-04-4 Methyl Tert Butyl Ether 462 25 3.4 ug/l
91-20-3 Naphthalene 281 25 5.0 ug/l
103-65-1 n-Propylbenzene 35.7 25 11 ug/l
100-42-5 Styrene 46.1 25 6.3 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 25 9.2 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 10 6.2 ug/l
127-18-4 Tetrachloroethylene ND 25 11 ug/l
108-88-3 Toluene 22500 b 250 150 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 25 8.0 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 25 8.5 ug/l
71-55-6 1,1,1-Trichloroethane ND 25 8.2 ug/l
79-00-5 1,1,2-Trichloroethane ND 15 8.7 ug/l
79-01-6 Trichloroethylene ND 25 9.0 ug/l
75-69-4 Trichlorofluoromethane ND 25 3.7 ug/l
96-18-4 1,2,3-Trichloropropane ND 25 1.1 ug/l
95-63-6 1,2,4-Trimethylbenzene 401 25 7.3 ug/l
108-67-8 1,3,5-Trimethylbenzene 101 25 8.1 ug/l
108-05-4 Vinyl Acetate ND 25 3.4 ug/l
75-01-4 Vinyl Chloride ND 5.0 3.8 ug/l
m,p-Xylene 3570 50 17 ug/l
95-47-6 o-Xylene 1750 25 7.4 ug/l
1330-20-7 Xylene (total)5320 25 8.1 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 109%114%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
22 of 87
LA8619733.4
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-4R
Lab Sample ID:LA86197-4 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 105%101%70-130%
460-00-4 4-Bromofluorobenzene 110%112%70-130%
(a) Internal standards are not within control limits. Insufficient hold time remains for re-analysis.
(b) Result is from Run# 2
(c) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
23 of 87
LA8619733.4
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-5
Lab Sample ID:LA86197-5 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G508993.D 200 12/27/22 12:45 MB n/a n/a V2G6427
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 2000 250 ug/l
71-43-2 Benzene 5790 100 54 ug/l
108-86-1 Bromobenzene ND 100 36 ug/l
74-97-5 Bromochloromethane ND 100 24 ug/l
75-27-4 Bromodichloromethane ND 100 36 ug/l
75-25-2 Bromoform ND 100 20 ug/l
104-51-8 n-Butylbenzene ND 100 18 ug/l
135-98-8 sec-Butylbenzene ND 100 28 ug/l
98-06-6 tert-Butylbenzene ND 100 32 ug/l
56-23-5 Carbon Tetrachloride ND 40 18 ug/l
108-90-7 Chlorobenzene ND 100 33 ug/l
75-00-3 Chloroethane ND 100 11 ug/l
67-66-3 Chloroform ND 100 19 ug/l
95-49-8 o-Chlorotoluene ND 100 33 ug/l
106-43-4 p-Chlorotoluene ND 100 40 ug/l
124-48-1 Dibromochloromethane ND 40 15 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 100 26 ug/l
106-93-4 1,2-Dibromoethane ND 100 47 ug/l
75-71-8 Dichlorodifluoromethane ND 100 24 ug/l
541-73-1 m-Dichlorobenzene ND 100 13 ug/l
95-50-1 o-Dichlorobenzene ND 100 39 ug/l
106-46-7 p-Dichlorobenzene ND 100 43 ug/l
75-34-3 1,1-Dichloroethane ND 100 21 ug/l
107-06-2 1,2-Dichloroethane 42.3 40 24 ug/l
75-35-4 1,1-Dichloroethylene ND 100 19 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 100 22 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 100 31 ug/l
78-87-5 1,2-Dichloropropane ND 60 25 ug/l
142-28-9 1,3-Dichloropropane ND 100 41 ug/l
594-20-7 2,2-Dichloropropane ND 100 16 ug/l
563-58-6 1,1-Dichloropropene ND 100 23 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 40 20 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
24 of 87
LA8619733.5
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-5
Lab Sample ID:LA86197-5 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 40 11 ug/l
108-20-3 Di-Isopropyl Ether 98.5 100 15 ug/l J
64-17-5 Ethyl Alcohol a ND 10000 1700 ug/l
100-41-4 Ethylbenzene 889 100 40 ug/l
591-78-6 2-Hexanone ND 200 84 ug/l
87-68-3 Hexachlorobutadiene ND 40 22 ug/l
98-82-8 Isopropylbenzene ND 100 26 ug/l
99-87-6 p-Isopropyltoluene ND 100 26 ug/l
74-83-9 Methyl Bromide ND 100 46 ug/l
74-87-3 Methyl Chloride ND 100 13 ug/l
74-95-3 Methylene Bromide ND 100 23 ug/l
75-09-2 Methylene Chloride ND 100 16 ug/l
78-93-3 Methyl Ethyl Ketone ND 5000 57 ug/l
108-10-1 4-Methyl-2-pentanone ND 100 48 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 100 14 ug/l
91-20-3 Naphthalene 842 100 20 ug/l
103-65-1 n-Propylbenzene 88.4 100 44 ug/l J
100-42-5 Styrene 67.6 100 25 ug/l J
630-20-6 1,1,1,2-Tetrachloroethane ND 100 37 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 40 25 ug/l
127-18-4 Tetrachloroethylene ND 100 45 ug/l
108-88-3 Toluene 19200 100 59 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 100 32 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 100 34 ug/l
71-55-6 1,1,1-Trichloroethane ND 100 33 ug/l
79-00-5 1,1,2-Trichloroethane ND 60 35 ug/l
79-01-6 Trichloroethylene ND 100 36 ug/l
75-69-4 Trichlorofluoromethane ND 100 15 ug/l
96-18-4 1,2,3-Trichloropropane ND 100 4.5 ug/l
95-63-6 1,2,4-Trimethylbenzene 957 100 29 ug/l
108-67-8 1,3,5-Trimethylbenzene 248 100 32 ug/l
108-05-4 Vinyl Acetate ND 100 14 ug/l
75-01-4 Vinyl Chloride ND 20 15 ug/l
m,p-Xylene 3450 200 67 ug/l
95-47-6 o-Xylene 1960 100 30 ug/l
1330-20-7 Xylene (total)5420 100 32 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 88%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
25 of 87
LA8619733.5
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-5
Lab Sample ID:LA86197-5 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 101%70-130%
460-00-4 4-Bromofluorobenzene 84%70-130%
(a) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
26 of 87
LA8619733.5
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-6
Lab Sample ID:LA86197-6 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a 2G508994.D 10 12/27/22 13:09 MB n/a n/a V2G6427
Run #2 2G509018.D 50 12/27/22 23:27 MB n/a n/a V2G6428
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 246 100 12 ug/l
71-43-2 Benzene 66.2 5.0 2.7 ug/l
108-86-1 Bromobenzene ND 5.0 1.8 ug/l
74-97-5 Bromochloromethane ND 5.0 1.2 ug/l
75-27-4 Bromodichloromethane ND 5.0 1.8 ug/l
75-25-2 Bromoform ND 5.0 1.0 ug/l
104-51-8 n-Butylbenzene ND 5.0 0.92 ug/l
135-98-8 sec-Butylbenzene ND 5.0 1.4 ug/l
98-06-6 tert-Butylbenzene ND 5.0 1.6 ug/l
56-23-5 Carbon Tetrachloride ND 2.0 0.92 ug/l
108-90-7 Chlorobenzene ND 5.0 1.6 ug/l
75-00-3 Chloroethane ND 5.0 0.55 ug/l
67-66-3 Chloroform ND 5.0 0.94 ug/l
95-49-8 o-Chlorotoluene ND 5.0 1.6 ug/l
106-43-4 p-Chlorotoluene ND 5.0 2.0 ug/l
124-48-1 Dibromochloromethane ND 2.0 0.75 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 1.3 ug/l
106-93-4 1,2-Dibromoethane ND 5.0 2.4 ug/l
75-71-8 Dichlorodifluoromethane ND 5.0 1.2 ug/l
541-73-1 m-Dichlorobenzene ND 5.0 0.63 ug/l
95-50-1 o-Dichlorobenzene ND 5.0 2.0 ug/l
106-46-7 p-Dichlorobenzene ND 5.0 2.2 ug/l
75-34-3 1,1-Dichloroethane ND 5.0 1.0 ug/l
107-06-2 1,2-Dichloroethane ND 2.0 1.2 ug/l
75-35-4 1,1-Dichloroethylene ND 5.0 0.94 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 5.0 1.1 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 5.0 1.5 ug/l
78-87-5 1,2-Dichloropropane ND 3.0 1.3 ug/l
142-28-9 1,3-Dichloropropane ND 5.0 2.1 ug/l
594-20-7 2,2-Dichloropropane ND 5.0 0.79 ug/l
563-58-6 1,1-Dichloropropene ND 5.0 1.2 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 2.0 1.0 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
27 of 87
LA8619733.6
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-6
Lab Sample ID:LA86197-6 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 2.0 0.56 ug/l
108-20-3 Di-Isopropyl Ether ND 5.0 0.73 ug/l
64-17-5 Ethyl Alcohol b ND 500 84 ug/l
100-41-4 Ethylbenzene 464 5.0 2.0 ug/l
591-78-6 2-Hexanone ND 10 4.2 ug/l
87-68-3 Hexachlorobutadiene ND 2.0 1.1 ug/l
98-82-8 Isopropylbenzene 57.7 5.0 1.3 ug/l
99-87-6 p-Isopropyltoluene ND 5.0 1.3 ug/l
74-83-9 Methyl Bromide ND 5.0 2.3 ug/l
74-87-3 Methyl Chloride ND 5.0 0.66 ug/l
74-95-3 Methylene Bromide ND 5.0 1.1 ug/l
75-09-2 Methylene Chloride ND 5.0 0.80 ug/l
78-93-3 Methyl Ethyl Ketone ND 250 2.8 ug/l
108-10-1 4-Methyl-2-pentanone ND 5.0 2.4 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 5.0 0.68 ug/l
91-20-3 Naphthalene 475 5.0 1.0 ug/l
103-65-1 n-Propylbenzene 227 5.0 2.2 ug/l
100-42-5 Styrene ND 5.0 1.3 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 5.0 1.8 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 2.0 1.2 ug/l
127-18-4 Tetrachloroethylene ND 5.0 2.2 ug/l
108-88-3 Toluene 3.2 5.0 2.9 ug/l J
87-61-6 1,2,3-Trichlorobenzene ND 5.0 1.6 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 5.0 1.7 ug/l
71-55-6 1,1,1-Trichloroethane ND 5.0 1.6 ug/l
79-00-5 1,1,2-Trichloroethane ND 3.0 1.7 ug/l
79-01-6 Trichloroethylene ND 5.0 1.8 ug/l
75-69-4 Trichlorofluoromethane ND 5.0 0.73 ug/l
96-18-4 1,2,3-Trichloropropane ND 5.0 0.23 ug/l
95-63-6 1,2,4-Trimethylbenzene 859 c 25 7.3 ug/l
108-67-8 1,3,5-Trimethylbenzene 515 5.0 1.6 ug/l
108-05-4 Vinyl Acetate ND 5.0 0.69 ug/l
75-01-4 Vinyl Chloride ND 1.0 0.75 ug/l
m,p-Xylene 264 10 3.4 ug/l
95-47-6 o-Xylene ND 5.0 1.5 ug/l
1330-20-7 Xylene (total)264 5.0 1.6 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 88%100%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
28 of 87
LA8619733.6
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-6
Lab Sample ID:LA86197-6 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 102%100%70-130%
460-00-4 4-Bromofluorobenzene 78%106%70-130%
(a) Internal standards are not within control limits due to matrix interference. Confirmed by reanalysis at a
dilution.
(b) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
(c) Result is from Run# 2
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
29 of 87
LA8619733.6
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-7
Lab Sample ID:LA86197-7 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G508995.D 100 12/27/22 13:34 MB n/a n/a V2G6427
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 1110 1000 120 ug/l
71-43-2 Benzene ND 50 27 ug/l
108-86-1 Bromobenzene ND 50 18 ug/l
74-97-5 Bromochloromethane ND 50 12 ug/l
75-27-4 Bromodichloromethane ND 50 18 ug/l
75-25-2 Bromoform ND 50 10 ug/l
104-51-8 n-Butylbenzene ND 50 9.2 ug/l
135-98-8 sec-Butylbenzene ND 50 14 ug/l
98-06-6 tert-Butylbenzene ND 50 16 ug/l
56-23-5 Carbon Tetrachloride ND 20 9.2 ug/l
108-90-7 Chlorobenzene ND 50 16 ug/l
75-00-3 Chloroethane ND 50 5.5 ug/l
67-66-3 Chloroform ND 50 9.4 ug/l
95-49-8 o-Chlorotoluene ND 50 16 ug/l
106-43-4 p-Chlorotoluene ND 50 20 ug/l
124-48-1 Dibromochloromethane ND 20 7.5 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 50 13 ug/l
106-93-4 1,2-Dibromoethane ND 50 24 ug/l
75-71-8 Dichlorodifluoromethane ND 50 12 ug/l
541-73-1 m-Dichlorobenzene ND 50 6.3 ug/l
95-50-1 o-Dichlorobenzene ND 50 20 ug/l
106-46-7 p-Dichlorobenzene ND 50 22 ug/l
75-34-3 1,1-Dichloroethane ND 50 10 ug/l
107-06-2 1,2-Dichloroethane ND 20 12 ug/l
75-35-4 1,1-Dichloroethylene ND 50 9.4 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 50 11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 50 15 ug/l
78-87-5 1,2-Dichloropropane ND 30 13 ug/l
142-28-9 1,3-Dichloropropane ND 50 21 ug/l
594-20-7 2,2-Dichloropropane ND 50 7.9 ug/l
563-58-6 1,1-Dichloropropene ND 50 12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 20 10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
30 of 87
LA8619733.7
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-7
Lab Sample ID:LA86197-7 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 20 5.6 ug/l
108-20-3 Di-Isopropyl Ether ND 50 7.3 ug/l
64-17-5 Ethyl Alcohol a ND 5000 840 ug/l
100-41-4 Ethylbenzene 2340 50 20 ug/l
591-78-6 2-Hexanone ND 100 42 ug/l
87-68-3 Hexachlorobutadiene ND 20 11 ug/l
98-82-8 Isopropylbenzene 49.9 50 13 ug/l J
99-87-6 p-Isopropyltoluene ND 50 13 ug/l
74-83-9 Methyl Bromide ND 50 23 ug/l
74-87-3 Methyl Chloride ND 50 6.6 ug/l
74-95-3 Methylene Bromide ND 50 11 ug/l
75-09-2 Methylene Chloride ND 50 8.0 ug/l
78-93-3 Methyl Ethyl Ketone ND 2500 28 ug/l
108-10-1 4-Methyl-2-pentanone ND 50 24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 50 6.8 ug/l
91-20-3 Naphthalene 1030 50 10 ug/l
103-65-1 n-Propylbenzene 168 50 22 ug/l
100-42-5 Styrene 107 50 13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 50 18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 20 12 ug/l
127-18-4 Tetrachloroethylene ND 50 22 ug/l
108-88-3 Toluene 7080 50 29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 50 16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 50 17 ug/l
71-55-6 1,1,1-Trichloroethane ND 50 16 ug/l
79-00-5 1,1,2-Trichloroethane ND 30 17 ug/l
79-01-6 Trichloroethylene ND 50 18 ug/l
75-69-4 Trichlorofluoromethane ND 50 7.3 ug/l
96-18-4 1,2,3-Trichloropropane ND 50 2.3 ug/l
95-63-6 1,2,4-Trimethylbenzene 1860 50 15 ug/l
108-67-8 1,3,5-Trimethylbenzene 488 50 16 ug/l
108-05-4 Vinyl Acetate ND 50 6.9 ug/l
75-01-4 Vinyl Chloride ND 10 7.5 ug/l
m,p-Xylene 9800 100 34 ug/l
95-47-6 o-Xylene 5070 50 15 ug/l
1330-20-7 Xylene (total)14900 50 16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 102%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
31 of 87
LA8619733.7
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-7
Lab Sample ID:LA86197-7 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 103%70-130%
460-00-4 4-Bromofluorobenzene 109%70-130%
(a) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
32 of 87
LA8619733.7
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-8
Lab Sample ID:LA86197-8 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G508996.D 200 12/27/22 13:58 MB n/a n/a V2G6427
Run #2 a 2G509019.D 1000 12/27/22 23:52 MB n/a n/a V2G6428
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 1040 2000 250 ug/l J
71-43-2 Benzene 12300 b 500 270 ug/l
108-86-1 Bromobenzene ND 100 36 ug/l
74-97-5 Bromochloromethane ND 100 24 ug/l
75-27-4 Bromodichloromethane ND 100 36 ug/l
75-25-2 Bromoform ND 100 20 ug/l
104-51-8 n-Butylbenzene ND 100 18 ug/l
135-98-8 sec-Butylbenzene ND 100 28 ug/l
98-06-6 tert-Butylbenzene ND 100 32 ug/l
56-23-5 Carbon Tetrachloride ND 40 18 ug/l
108-90-7 Chlorobenzene ND 100 33 ug/l
75-00-3 Chloroethane ND 100 11 ug/l
67-66-3 Chloroform ND 100 19 ug/l
95-49-8 o-Chlorotoluene ND 100 33 ug/l
106-43-4 p-Chlorotoluene ND 100 40 ug/l
124-48-1 Dibromochloromethane ND 40 15 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 100 26 ug/l
106-93-4 1,2-Dibromoethane ND 100 47 ug/l
75-71-8 Dichlorodifluoromethane ND 100 24 ug/l
541-73-1 m-Dichlorobenzene ND 100 13 ug/l
95-50-1 o-Dichlorobenzene ND 100 39 ug/l
106-46-7 p-Dichlorobenzene ND 100 43 ug/l
75-34-3 1,1-Dichloroethane ND 100 21 ug/l
107-06-2 1,2-Dichloroethane 117 40 24 ug/l
75-35-4 1,1-Dichloroethylene ND 100 19 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 100 22 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 100 31 ug/l
78-87-5 1,2-Dichloropropane ND 60 25 ug/l
142-28-9 1,3-Dichloropropane ND 100 41 ug/l
594-20-7 2,2-Dichloropropane ND 100 16 ug/l
563-58-6 1,1-Dichloropropene ND 100 23 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 40 20 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
33 of 87
LA8619733.8
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-8
Lab Sample ID:LA86197-8 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 40 11 ug/l
108-20-3 Di-Isopropyl Ether 821 100 15 ug/l
64-17-5 Ethyl Alcohol c ND 10000 1700 ug/l
100-41-4 Ethylbenzene 2280 100 40 ug/l
591-78-6 2-Hexanone ND 200 84 ug/l
87-68-3 Hexachlorobutadiene ND 40 22 ug/l
98-82-8 Isopropylbenzene 38.5 100 26 ug/l J
99-87-6 p-Isopropyltoluene ND 100 26 ug/l
74-83-9 Methyl Bromide ND 100 46 ug/l
74-87-3 Methyl Chloride ND 100 13 ug/l
74-95-3 Methylene Bromide ND 100 23 ug/l
75-09-2 Methylene Chloride ND 100 16 ug/l
78-93-3 Methyl Ethyl Ketone ND 5000 57 ug/l
108-10-1 4-Methyl-2-pentanone ND 100 48 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 100 14 ug/l
91-20-3 Naphthalene 701 100 20 ug/l
103-65-1 n-Propylbenzene 106 100 44 ug/l
100-42-5 Styrene 221 100 25 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 100 37 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 40 25 ug/l
127-18-4 Tetrachloroethylene ND 100 45 ug/l
108-88-3 Toluene 26200 b 500 290 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 100 32 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 100 34 ug/l
71-55-6 1,1,1-Trichloroethane ND 100 33 ug/l
79-00-5 1,1,2-Trichloroethane ND 60 35 ug/l
79-01-6 Trichloroethylene ND 100 36 ug/l
75-69-4 Trichlorofluoromethane ND 100 15 ug/l
96-18-4 1,2,3-Trichloropropane ND 100 4.5 ug/l
95-63-6 1,2,4-Trimethylbenzene 1180 100 29 ug/l
108-67-8 1,3,5-Trimethylbenzene 292 100 32 ug/l
108-05-4 Vinyl Acetate ND 100 14 ug/l
75-01-4 Vinyl Chloride ND 20 15 ug/l
m,p-Xylene 9130 200 67 ug/l
95-47-6 o-Xylene 4890 100 30 ug/l
1330-20-7 Xylene (total)14000 100 32 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 117%91%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
34 of 87
LA8619733.8
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-8
Lab Sample ID:LA86197-8 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 103%100%70-130%
460-00-4 4-Bromofluorobenzene 113%88%70-130%
(a) Internal standards are not within control limits. Insufficient hold time remains for re-analysis.
(b) Result is from Run# 2
(c) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
35 of 87
LA8619733.8
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-9
Lab Sample ID:LA86197-9 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a 2G508997.D 1 12/27/22 14:22 MB n/a n/a V2G6427
Run #2 b 2G509015.D 1 12/27/22 22:14 MB n/a n/a V2G6428
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 60.2 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
36 of 87
LA8619733.9
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-9
Lab Sample ID:LA86197-9 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol c ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 0.33 0.50 0.29 ug/l J
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 95%93%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
37 of 87
LA8619733.9
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-9
Lab Sample ID:LA86197-9 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 100%102%70-130%
460-00-4 4-Bromofluorobenzene 89%85%70-130%
(a) Internal standards are not within control limits due to matrix interference. Confirmed by reanalysis.
(b) Confirmation run for internal standard areas.
(c) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
38 of 87
LA8619733.9
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-10
Lab Sample ID:LA86197-10 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a 2G508998.D 1 12/27/22 14:47 MB n/a n/a V2G6427
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 7.2 10 1.2 ug/l J
71-43-2 Benzene 0.30 0.50 0.27 ug/l J
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
39 of 87
LA8619733.10
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-10
Lab Sample ID:LA86197-10 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol b ND 50 8.4 ug/l
100-41-4 Ethylbenzene 0.77 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene 0.33 0.50 0.10 ug/l J
103-65-1 n-Propylbenzene 0.42 0.50 0.22 ug/l J
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 2.7 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene 2.9 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene 0.85 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene 2.6 1.0 0.34 ug/l
95-47-6 o-Xylene 1.3 0.50 0.15 ug/l
1330-20-7 Xylene (total)3.9 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 96%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
40 of 87
LA8619733.10
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-10
Lab Sample ID:LA86197-10 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 101%70-130%
460-00-4 4-Bromofluorobenzene 89%70-130%
(a) Internal standards are not within control limits. Insufficient hold time remains for re-analysis.
(b) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
41 of 87
LA8619733.10
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-11
Lab Sample ID:LA86197-11 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G508999.D 1 12/27/22 15:11 MB n/a n/a V2G6427
Run #2 a 2G509020.D 5 12/28/22 00:16 MB n/a n/a V2G6428
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 180 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene 2.5 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
42 of 87
LA8619733.11
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-11
Lab Sample ID:LA86197-11 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol b ND 50 8.4 ug/l
100-41-4 Ethylbenzene 3.3 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene 6.1 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene 3.0 0.50 0.10 ug/l
103-65-1 n-Propylbenzene 33.1 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
108-88-3 Toluene 4.0 c 2.5 1.5 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene 123 c 2.5 0.73 ug/l
108-67-8 1,3,5-Trimethylbenzene 31.6 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene 4.8 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)4.8 0.50 0.16 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
43 of 87
LA8619733.11
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-11
Lab Sample ID:LA86197-11 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 113%111%70-130%
2037-26-5 Toluene-D8 103%101%70-130%
460-00-4 4-Bromofluorobenzene 111%110%70-130%
(a) Sample analyzed beyond hold time.
(b) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
(c) Result is from Run# 2
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
44 of 87
LA8619733.11
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-12
Lab Sample ID:LA86197-12 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G509000.D 200 12/27/22 15:36 MB n/a n/a V2G6427
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 2000 250 ug/l
71-43-2 Benzene 3710 100 54 ug/l
108-86-1 Bromobenzene ND 100 36 ug/l
74-97-5 Bromochloromethane ND 100 24 ug/l
75-27-4 Bromodichloromethane ND 100 36 ug/l
75-25-2 Bromoform ND 100 20 ug/l
104-51-8 n-Butylbenzene ND 100 18 ug/l
135-98-8 sec-Butylbenzene ND 100 28 ug/l
98-06-6 tert-Butylbenzene ND 100 32 ug/l
56-23-5 Carbon Tetrachloride ND 40 18 ug/l
108-90-7 Chlorobenzene ND 100 33 ug/l
75-00-3 Chloroethane ND 100 11 ug/l
67-66-3 Chloroform ND 100 19 ug/l
95-49-8 o-Chlorotoluene ND 100 33 ug/l
106-43-4 p-Chlorotoluene ND 100 40 ug/l
124-48-1 Dibromochloromethane ND 40 15 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 100 26 ug/l
106-93-4 1,2-Dibromoethane ND 100 47 ug/l
75-71-8 Dichlorodifluoromethane ND 100 24 ug/l
541-73-1 m-Dichlorobenzene ND 100 13 ug/l
95-50-1 o-Dichlorobenzene ND 100 39 ug/l
106-46-7 p-Dichlorobenzene ND 100 43 ug/l
75-34-3 1,1-Dichloroethane ND 100 21 ug/l
107-06-2 1,2-Dichloroethane ND 40 24 ug/l
75-35-4 1,1-Dichloroethylene ND 100 19 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 100 22 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 100 31 ug/l
78-87-5 1,2-Dichloropropane ND 60 25 ug/l
142-28-9 1,3-Dichloropropane ND 100 41 ug/l
594-20-7 2,2-Dichloropropane ND 100 16 ug/l
563-58-6 1,1-Dichloropropene ND 100 23 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 40 20 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
45 of 87
LA8619733.12
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-12
Lab Sample ID:LA86197-12 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 40 11 ug/l
108-20-3 Di-Isopropyl Ether 207 100 15 ug/l
64-17-5 Ethyl Alcohol a ND 10000 1700 ug/l
100-41-4 Ethylbenzene 1470 100 40 ug/l
591-78-6 2-Hexanone ND 200 84 ug/l
87-68-3 Hexachlorobutadiene ND 40 22 ug/l
98-82-8 Isopropylbenzene ND 100 26 ug/l
99-87-6 p-Isopropyltoluene ND 100 26 ug/l
74-83-9 Methyl Bromide ND 100 46 ug/l
74-87-3 Methyl Chloride ND 100 13 ug/l
74-95-3 Methylene Bromide ND 100 23 ug/l
75-09-2 Methylene Chloride ND 100 16 ug/l
78-93-3 Methyl Ethyl Ketone ND 5000 57 ug/l
108-10-1 4-Methyl-2-pentanone ND 100 48 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 100 14 ug/l
91-20-3 Naphthalene 524 100 20 ug/l
103-65-1 n-Propylbenzene 75.2 100 44 ug/l J
100-42-5 Styrene 109 100 25 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 100 37 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 40 25 ug/l
127-18-4 Tetrachloroethylene ND 100 45 ug/l
108-88-3 Toluene 12600 100 59 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 100 32 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 100 34 ug/l
71-55-6 1,1,1-Trichloroethane ND 100 33 ug/l
79-00-5 1,1,2-Trichloroethane ND 60 35 ug/l
79-01-6 Trichloroethylene ND 100 36 ug/l
75-69-4 Trichlorofluoromethane ND 100 15 ug/l
96-18-4 1,2,3-Trichloropropane ND 100 4.5 ug/l
95-63-6 1,2,4-Trimethylbenzene 887 100 29 ug/l
108-67-8 1,3,5-Trimethylbenzene 219 100 32 ug/l
108-05-4 Vinyl Acetate ND 100 14 ug/l
75-01-4 Vinyl Chloride ND 20 15 ug/l
m,p-Xylene 5990 200 67 ug/l
95-47-6 o-Xylene 2460 100 30 ug/l
1330-20-7 Xylene (total)8450 100 32 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 120%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
46 of 87
LA8619733.12
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-12
Lab Sample ID:LA86197-12 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 102%70-130%
460-00-4 4-Bromofluorobenzene 111%70-130%
(a) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
47 of 87
LA8619733.12
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-13
Lab Sample ID:LA86197-13 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G509001.D 50 12/27/22 16:00 MB n/a n/a V2G6427
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 500 62 ug/l
71-43-2 Benzene 4250 25 14 ug/l
108-86-1 Bromobenzene ND 25 9.1 ug/l
74-97-5 Bromochloromethane ND 25 6.1 ug/l
75-27-4 Bromodichloromethane ND 25 9.0 ug/l
75-25-2 Bromoform ND 25 5.0 ug/l
104-51-8 n-Butylbenzene ND 25 4.6 ug/l
135-98-8 sec-Butylbenzene ND 25 7.1 ug/l
98-06-6 tert-Butylbenzene ND 25 7.9 ug/l
56-23-5 Carbon Tetrachloride ND 10 4.6 ug/l
108-90-7 Chlorobenzene ND 25 8.2 ug/l
75-00-3 Chloroethane ND 25 2.8 ug/l
67-66-3 Chloroform ND 25 4.7 ug/l
95-49-8 o-Chlorotoluene ND 25 8.2 ug/l
106-43-4 p-Chlorotoluene ND 25 10 ug/l
124-48-1 Dibromochloromethane ND 10 3.7 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 25 6.4 ug/l
106-93-4 1,2-Dibromoethane ND 25 12 ug/l
75-71-8 Dichlorodifluoromethane ND 25 6.1 ug/l
541-73-1 m-Dichlorobenzene ND 25 3.2 ug/l
95-50-1 o-Dichlorobenzene ND 25 9.8 ug/l
106-46-7 p-Dichlorobenzene ND 25 11 ug/l
75-34-3 1,1-Dichloroethane ND 25 5.2 ug/l
107-06-2 1,2-Dichloroethane 781 10 6.1 ug/l
75-35-4 1,1-Dichloroethylene ND 25 4.7 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 25 5.5 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 25 7.7 ug/l
78-87-5 1,2-Dichloropropane ND 15 6.3 ug/l
142-28-9 1,3-Dichloropropane ND 25 10 ug/l
594-20-7 2,2-Dichloropropane ND 25 4.0 ug/l
563-58-6 1,1-Dichloropropene ND 25 5.8 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 10 5.1 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
48 of 87
LA8619733.13
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-13
Lab Sample ID:LA86197-13 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 10 2.8 ug/l
108-20-3 Di-Isopropyl Ether 2580 25 3.7 ug/l
64-17-5 Ethyl Alcohol a ND 2500 420 ug/l
100-41-4 Ethylbenzene 196 25 10 ug/l
591-78-6 2-Hexanone ND 50 21 ug/l
87-68-3 Hexachlorobutadiene ND 10 5.5 ug/l
98-82-8 Isopropylbenzene 8.2 25 6.6 ug/l J
99-87-6 p-Isopropyltoluene ND 25 6.5 ug/l
74-83-9 Methyl Bromide ND 25 11 ug/l
74-87-3 Methyl Chloride ND 25 3.3 ug/l
74-95-3 Methylene Bromide ND 25 5.7 ug/l
75-09-2 Methylene Chloride ND 25 4.0 ug/l
78-93-3 Methyl Ethyl Ketone ND 1300 14 ug/l
108-10-1 4-Methyl-2-pentanone ND 25 12 ug/l
1634-04-4 Methyl Tert Butyl Ether 1260 25 3.4 ug/l
91-20-3 Naphthalene 203 25 5.0 ug/l
103-65-1 n-Propylbenzene ND 25 11 ug/l
100-42-5 Styrene ND 25 6.3 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 25 9.2 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 10 6.2 ug/l
127-18-4 Tetrachloroethylene ND 25 11 ug/l
108-88-3 Toluene 185 25 15 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 25 8.0 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 25 8.5 ug/l
71-55-6 1,1,1-Trichloroethane ND 25 8.2 ug/l
79-00-5 1,1,2-Trichloroethane ND 15 8.7 ug/l
79-01-6 Trichloroethylene ND 25 9.0 ug/l
75-69-4 Trichlorofluoromethane ND 25 3.7 ug/l
96-18-4 1,2,3-Trichloropropane ND 25 1.1 ug/l
95-63-6 1,2,4-Trimethylbenzene 63.8 25 7.3 ug/l
108-67-8 1,3,5-Trimethylbenzene 26.1 25 8.1 ug/l
108-05-4 Vinyl Acetate ND 25 3.4 ug/l
75-01-4 Vinyl Chloride ND 5.0 3.8 ug/l
m,p-Xylene 306 50 17 ug/l
95-47-6 o-Xylene 75.3 25 7.4 ug/l
1330-20-7 Xylene (total)381 25 8.1 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 124%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
49 of 87
LA8619733.13
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-13
Lab Sample ID:LA86197-13 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 102%70-130%
460-00-4 4-Bromofluorobenzene 115%70-130%
(a) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
50 of 87
LA8619733.13
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-14
Lab Sample ID:LA86197-14 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G509002.D 1 12/27/22 16:25 MB n/a n/a V2G6427
Run #2 a 2G509021.D 20 12/28/22 00:41 MB n/a n/a V2G6428
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 74.5 10 1.2 ug/l
71-43-2 Benzene 805 b 10 5.4 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane 0.30 0.50 0.18 ug/l J
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene 0.18 0.50 0.14 ug/l J
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform 5.0 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane 2.9 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane 6.8 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
51 of 87
LA8619733.14
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-14
Lab Sample ID:LA86197-14 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether 96.1 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol c ND 50 8.4 ug/l
100-41-4 Ethylbenzene 9.8 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene 4.4 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene 53.9 0.50 0.10 ug/l
103-65-1 n-Propylbenzene 0.68 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 33.1 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene 5.9 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene 190 1.0 0.34 ug/l
95-47-6 o-Xylene 33.8 0.50 0.15 ug/l
1330-20-7 Xylene (total)224 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 113%89%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
52 of 87
LA8619733.14
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-14
Lab Sample ID:LA86197-14 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 101%100%70-130%
460-00-4 4-Bromofluorobenzene 113%79%70-130%
(a) Sample analyzed beyond hold time. rr ISTD failed
(b) Result is from Run# 2
(c) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
53 of 87
LA8619733.14
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-15
Lab Sample ID:LA86197-15 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G509003.D 1 12/27/22 16:49 MB n/a n/a V2G6427
Run #2 a 2G509022.D 10 12/28/22 01:05 MB n/a n/a V2G6428
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 293 b 100 12 ug/l
71-43-2 Benzene 0.30 0.50 0.27 ug/l J
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
54 of 87
LA8619733.15
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-15
Lab Sample ID:LA86197-15 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol c ND 50 8.4 ug/l
100-41-4 Ethylbenzene d 1380 b 5.0 2.0 ug/l E
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene 27.5 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene 822 b 5.0 1.0 ug/l
103-65-1 n-Propylbenzene 86.2 0.50 0.22 ug/l
100-42-5 Styrene 20.2 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 596 b 5.0 2.9 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene 861 b 5.0 1.5 ug/l
108-67-8 1,3,5-Trimethylbenzene 297 b 5.0 1.6 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene 1030 b 10 3.4 ug/l
95-47-6 o-Xylene 449 b 5.0 1.5 ug/l
1330-20-7 Xylene (total)1480 b 5.0 1.6 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 116%88%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
55 of 87
LA8619733.15
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-15
Lab Sample ID:LA86197-15 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 104%102%70-130%
460-00-4 4-Bromofluorobenzene 107%83%70-130%
(a) Sample analyzed beyond hold time. rr f/d
(b) Result is from Run# 2
(c) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
(d) Unable to analyze at a higher dilution prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
56 of 87
LA8619733.15
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-18
Lab Sample ID:LA86197-16 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G509004.D 500 12/27/22 17:13 MB n/a n/a V2G6427
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 5000 620 ug/l
71-43-2 Benzene 14500 250 140 ug/l
108-86-1 Bromobenzene ND 250 91 ug/l
74-97-5 Bromochloromethane ND 250 61 ug/l
75-27-4 Bromodichloromethane ND 250 90 ug/l
75-25-2 Bromoform ND 250 50 ug/l
104-51-8 n-Butylbenzene ND 250 46 ug/l
135-98-8 sec-Butylbenzene ND 250 71 ug/l
98-06-6 tert-Butylbenzene ND 250 79 ug/l
56-23-5 Carbon Tetrachloride ND 100 46 ug/l
108-90-7 Chlorobenzene ND 250 82 ug/l
75-00-3 Chloroethane ND 250 28 ug/l
67-66-3 Chloroform ND 250 47 ug/l
95-49-8 o-Chlorotoluene ND 250 82 ug/l
106-43-4 p-Chlorotoluene ND 250 100 ug/l
124-48-1 Dibromochloromethane ND 100 37 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 250 64 ug/l
106-93-4 1,2-Dibromoethane ND 250 120 ug/l
75-71-8 Dichlorodifluoromethane ND 250 61 ug/l
541-73-1 m-Dichlorobenzene ND 250 32 ug/l
95-50-1 o-Dichlorobenzene ND 250 98 ug/l
106-46-7 p-Dichlorobenzene ND 250 110 ug/l
75-34-3 1,1-Dichloroethane ND 250 52 ug/l
107-06-2 1,2-Dichloroethane 674 100 61 ug/l
75-35-4 1,1-Dichloroethylene ND 250 47 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 250 55 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 250 77 ug/l
78-87-5 1,2-Dichloropropane ND 150 63 ug/l
142-28-9 1,3-Dichloropropane ND 250 100 ug/l
594-20-7 2,2-Dichloropropane ND 250 40 ug/l
563-58-6 1,1-Dichloropropene ND 250 58 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 100 51 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
57 of 87
LA8619733.16
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-18
Lab Sample ID:LA86197-16 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 100 28 ug/l
108-20-3 Di-Isopropyl Ether 2380 250 37 ug/l
64-17-5 Ethyl Alcohol a ND 25000 4200 ug/l
100-41-4 Ethylbenzene 1370 250 100 ug/l
591-78-6 2-Hexanone ND 500 210 ug/l
87-68-3 Hexachlorobutadiene ND 100 55 ug/l
98-82-8 Isopropylbenzene ND 250 66 ug/l
99-87-6 p-Isopropyltoluene ND 250 65 ug/l
74-83-9 Methyl Bromide ND 250 110 ug/l
74-87-3 Methyl Chloride ND 250 33 ug/l
74-95-3 Methylene Bromide ND 250 57 ug/l
75-09-2 Methylene Chloride ND 250 40 ug/l
78-93-3 Methyl Ethyl Ketone ND 13000 140 ug/l
108-10-1 4-Methyl-2-pentanone ND 250 120 ug/l
1634-04-4 Methyl Tert Butyl Ether 1000 250 34 ug/l
91-20-3 Naphthalene 1410 250 50 ug/l
103-65-1 n-Propylbenzene ND 250 110 ug/l
100-42-5 Styrene ND 250 63 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 250 92 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 100 62 ug/l
127-18-4 Tetrachloroethylene ND 250 110 ug/l
108-88-3 Toluene 28200 250 150 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 250 80 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 250 85 ug/l
71-55-6 1,1,1-Trichloroethane ND 250 82 ug/l
79-00-5 1,1,2-Trichloroethane ND 150 87 ug/l
79-01-6 Trichloroethylene ND 250 90 ug/l
75-69-4 Trichlorofluoromethane ND 250 37 ug/l
96-18-4 1,2,3-Trichloropropane ND 250 11 ug/l
95-63-6 1,2,4-Trimethylbenzene 1200 250 73 ug/l
108-67-8 1,3,5-Trimethylbenzene 342 250 81 ug/l
108-05-4 Vinyl Acetate ND 250 34 ug/l
75-01-4 Vinyl Chloride ND 50 38 ug/l
m,p-Xylene 5260 500 170 ug/l
95-47-6 o-Xylene 2760 250 74 ug/l
1330-20-7 Xylene (total)8020 250 81 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 110%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
58 of 87
LA8619733.16
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-18
Lab Sample ID:LA86197-16 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 101%70-130%
460-00-4 4-Bromofluorobenzene 108%70-130%
(a) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
59 of 87
LA8619733.16
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-19
Lab Sample ID:LA86197-17 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G509005.D 1 12/27/22 17:38 MB n/a n/a V2G6427
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform 0.35 0.50 0.094 ug/l J
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
60 of 87
LA8619733.17
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-19
Lab Sample ID:LA86197-17 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol a ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene 0.30 0.50 0.10 ug/l J
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 111%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
61 of 87
LA8619733.17
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-19
Lab Sample ID:LA86197-17 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 110%70-130%
(a) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
62 of 87
LA8619733.17
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-20
Lab Sample ID:LA86197-18 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G509006.D 1 12/27/22 18:02 MB n/a n/a V2G6427
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
63 of 87
LA8619733.18
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-20
Lab Sample ID:LA86197-18 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol a ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 115%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
64 of 87
LA8619733.18
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-20
Lab Sample ID:LA86197-18 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 111%70-130%
(a) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
65 of 87
LA8619733.18
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-21
Lab Sample ID:LA86197-19 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2G509007.D 1 12/27/22 18:27 MB n/a n/a V2G6427
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
66 of 87
LA8619733.19
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-21
Lab Sample ID:LA86197-19 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol a ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 101%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
67 of 87
LA8619733.19
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-21
Lab Sample ID:LA86197-19 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/15/22
Method:SM 6200B Percent Solids:n/a
Project:Pantry #176, 208 Main Street, Clayton, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 99%70-130%
(a) QC exceeded criteria biased low. Unable to re-analyze prior to sample expiration.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
68 of 87
LA8619733.19
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 4
69 of 87
LA861974
CHAIN OF CUSTODY PAGE I OF a
SGS North Amenca hc. . Scott
500 Ambassador Caffery Parlway, Scott. LA 70583
rEL. 337 237.4775 FAX: [phone]
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Note: Sample inventory is verilled uponD conh.Er.r'A' (t.El r) E
ComreEial 'A' = Rnults O.ly,
Cm.jd"B" = Ros![s + OC Su,l@,y
Com,lffiial'C'= R$![s + OC Summ.y + Psnial Raw Dala
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LA8619744.1
t,LA86197: Chain of Custody
Page 2 of 6
71 of 87
LA8619744.1
peoe 3 or QCHAIN OF CUSTODY
SGS North Amorlca lnc. - Scolt
500 Ambassador Caffery Pa*way, Scott, LA 70583
rEt. 33t.231 -4175 FAX: [phone] lt It/. / t t)
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LA8619744.1
,l-f*ngCgtVlt'tGsEbrr tl LABoRIToRYGOMMISSION BLVDTFAYETTE LA 70508-47fr.,rflil[III llll lllIIlllllllllllilillltllllllFedExErprtaa. 'E DEC 10:301Y ol,ERillct{I70508LA-us LFTffi570i90505978'/i;XH LFTA-\S\r\ffitilflilIil[[ilmilffi[rillfrl[I\c\T.-Q'KEl'i.'ti;t,IIItl.1.{!-aI1,. a:osSN\C\\s?'a\LA86197: Chain of Custody
Page 4 of 6
73 of 87
LA8619744.1
Job Number:LA86197 Client:ATC
Date / Time Received:12/15/2022 9:30:00 AM Delivery Method:FEDEX
Project:PANTRY 176
4. No. Coolers:1
Airbill #'s:
Cooler Security
1. Custody Seals Present:
Y or N
2. Custody Seals Intact:
3. COC Present:
4. Smpl Dates/Time OK
2. Thermometer ID:
Cooler Temperature Y or N
1. Temp criteria achieved:
3. Cooler media:
IR002;
Ice (direct contact)
Quality Control Preservation Y or N N/A
1. Trip Blank present / cooler:
2. Trip Blank listed on COC:
3. Samples preserved properly:
4. VOCs headspace free:
Sample Integrity - Documentation Y or N
1. Sample labels present on bottles:
2. Container labeling complete:
3. Sample container label / COC agree:
Sample Integrity - Condition Y or N
1. Sample recvd within HT:
3. Condition of sample:
2. All containers accounted for:
Sample Integrity - Instructions
1. Analysis requested is clear:
2. Bottles received for unspecified tests
3. Sufficient volume recvd for analysis:
4. Compositing instructions clear:
5. Filtering instructions clear:
Intact
Y or N
Comments
Y or N N/A
Cooler Temps (Initial/Adjusted):#1: (4.6/4.4);
SGS Sample Receipt Summary
LA86197: Chain of Custody
Page 5 of 6
74 of 87
LA8619744.1
Page 2 of 2
Problem Resolution
CSR:Response Date:
Response:
Job Number:LA86197
LA86197: Chain of Custody
Page 6 of 6
75 of 87
LA8619744.1
SGS North America Inc.
MS Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and Duplicate Summaries
Scott, LA
Section 5
76 of 87
LA861975
Method Blank Summary Page 1 of 3
Job Number:LA86197
Account:ATCNCR Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2G6427-MB1 2G508988.D 1 12/27/22 MB n/a n/a V2G6427
The QC reported here applies to the following samples:Method: SM 6200B
LA86197-1, LA86197-2, LA86197-3, LA86197-4, LA86197-5, LA86197-6, LA86197-7, LA86197-8, LA86197-9,
LA86197-10, LA86197-11, LA86197-12, LA86197-13, LA86197-14, LA86197-15, LA86197-16, LA86197-17, LA86197-
18, LA86197-19
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 1.4 10 1.2 ug/l J
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
77 of 87
LA8619755.1.1
Method Blank Summary Page 2 of 3
Job Number:LA86197
Account:ATCNCR Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2G6427-MB1 2G508988.D 1 12/27/22 MB n/a n/a V2G6427
The QC reported here applies to the following samples:Method: SM 6200B
LA86197-1, LA86197-2, LA86197-3, LA86197-4, LA86197-5, LA86197-6, LA86197-7, LA86197-8, LA86197-9,
LA86197-10, LA86197-11, LA86197-12, LA86197-13, LA86197-14, LA86197-15, LA86197-16, LA86197-17, LA86197-
18, LA86197-19
CAS No.Compound Result RL MDL Units Q
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
78 of 87
LA8619755.1.1
Method Blank Summary Page 3 of 3
Job Number:LA86197
Account:ATCNCR Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2G6427-MB1 2G508988.D 1 12/27/22 MB n/a n/a V2G6427
The QC reported here applies to the following samples:Method: SM 6200B
LA86197-1, LA86197-2, LA86197-3, LA86197-4, LA86197-5, LA86197-6, LA86197-7, LA86197-8, LA86197-9,
LA86197-10, LA86197-11, LA86197-12, LA86197-13, LA86197-14, LA86197-15, LA86197-16, LA86197-17, LA86197-
18, LA86197-19
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 113%70-130%
2037-26-5 Toluene-D8 100%70-130%
460-00-4 4-Bromofluorobenzene 111%70-130%
79 of 87
LA8619755.1.1
Method Blank Summary Page 1 of 1
Job Number:LA86197
Account:ATCNCR Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2G6428-MB1 2G509014.D 1 12/27/22 MB n/a n/a V2G6428
The QC reported here applies to the following samples:Method: SM 6200B
LA86197-4, LA86197-6, LA86197-8, LA86197-11, LA86197-14, LA86197-15
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 1.3 10 1.2 ug/l J
71-43-2 Benzene ND 0.50 0.27 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 120%70-130%
2037-26-5 Toluene-D8 101%70-130%
460-00-4 4-Bromofluorobenzene 114%70-130%
80 of 87
LA8619755.1.2
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA86197
Account:ATCNCR Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2G6427-BS1 2G508986.D 1 12/27/22 MB n/a n/a V2G6427
V2G6427-BSD1 2G509008.D 1 12/27/22 MB n/a n/a V2G6427
The QC reported here applies to the following samples:Method: SM 6200B
LA86197-1, LA86197-2, LA86197-3, LA86197-4, LA86197-5, LA86197-6, LA86197-7, LA86197-8, LA86197-9,
LA86197-10, LA86197-11, LA86197-12, LA86197-13, LA86197-14, LA86197-15, LA86197-16, LA86197-17, LA86197-
18, LA86197-19
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 50.5 101 41.6 83 19 70-130/30
71-43-2 Benzene 20 19.1 96 19.5 98 2 70-130/30
108-86-1 Bromobenzene 20 18.6 93 18.8 94 1 70-130/30
74-97-5 Bromochloromethane 20 19.4 97 21.3 107 9 70-130/30
75-27-4 Bromodichloromethane 20 20.0 100 20.5 103 2 70-130/30
75-25-2 Bromoform 20 20.6 103 19.9 100 3 70-130/30
104-51-8 n-Butylbenzene 20 14.6 73 15.1 76 3 70-130/30
135-98-8 sec-Butylbenzene 20 15.0 75 15.2 76 1 70-130/30
98-06-6 tert-Butylbenzene 20 15.2 76 15.4 77 1 70-130/30
56-23-5 Carbon Tetrachloride 20 21.0 105 22.1 111 5 70-130/30
108-90-7 Chlorobenzene 20 18.3 92 18.3 92 0 70-130/30
75-00-3 Chloroethane 20 21.3 107 21.5 108 1 60-140/30
67-66-3 Chloroform 20 19.3 97 21.5 108 11 70-130/30
95-49-8 o-Chlorotoluene 20 15.1 76 15.0 75 1 70-130/30
106-43-4 p-Chlorotoluene 20 15.0 75 15.1 76 1 70-130/30
124-48-1 Dibromochloromethane 20 19.9 100 19.8 99 1 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 17.1 86 16.8 84 2 70-130/30
106-93-4 1,2-Dibromoethane 20 18.6 93 19.2 96 3 70-130/30
75-71-8 Dichlorodifluoromethane 20 22.0 110 22.2 111 1 60-140/30
541-73-1 m-Dichlorobenzene 20 14.9 75 15.0 75 1 70-130/30
95-50-1 o-Dichlorobenzene 20 14.8 74 14.9 75 1 70-130/30
106-46-7 p-Dichlorobenzene 20 14.6 73 14.8 74 1 70-130/30
75-34-3 1,1-Dichloroethane 20 19.9 100 23.7 119 17 70-130/30
107-06-2 1,2-Dichloroethane 20 19.2 96 19.6 98 2 70-130/30
75-35-4 1,1-Dichloroethylene 20 18.4 92 19.3 97 5 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 19.9 100 21.5 108 8 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 19.3 97 22.9 115 17 70-130/30
78-87-5 1,2-Dichloropropane 20 20.3 102 20.4 102 0 70-130/30
142-28-9 1,3-Dichloropropane 20 19.0 95 19.5 98 3 70-130/30
594-20-7 2,2-Dichloropropane 20 20.4 102 21.9 110 7 70-130/30
563-58-6 1,1-Dichloropropene 20 19.7 99 21.8 109 10 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 19.8 99 20.0 100 1 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 19.3 97 18.9 95 2 70-130/30
108-20-3 Di-Isopropyl Ether 20 19.9 100 24.7 124 22 70-130/30
64-17-5 Ethyl Alcohol 400 338 85 236 59* a 36* b 70-130/30
100-41-4 Ethylbenzene 20 18.7 94 18.3 92 2 70-130/30
* = Outside of Control Limits.
81 of 87
LA8619755.2.1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA86197
Account:ATCNCR Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2G6427-BS1 2G508986.D 1 12/27/22 MB n/a n/a V2G6427
V2G6427-BSD1 2G509008.D 1 12/27/22 MB n/a n/a V2G6427
The QC reported here applies to the following samples:Method: SM 6200B
LA86197-1, LA86197-2, LA86197-3, LA86197-4, LA86197-5, LA86197-6, LA86197-7, LA86197-8, LA86197-9,
LA86197-10, LA86197-11, LA86197-12, LA86197-13, LA86197-14, LA86197-15, LA86197-16, LA86197-17, LA86197-
18, LA86197-19
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
591-78-6 2-Hexanone 50 42.9 86 42.3 85 1 70-130/30
87-68-3 Hexachlorobutadiene 20 13.9 70 14.7 74 6 70-130/30
98-82-8 Isopropylbenzene 20 20.5 103 20.8 104 1 70-130/30
99-87-6 p-Isopropyltoluene 20 15.0 75 15.3 77 2 70-130/30
74-83-9 Methyl Bromide 20 20.3 102 23.6 118 15 60-140/30
74-87-3 Methyl Chloride 20 19.3 97 19.6 98 2 60-140/30
74-95-3 Methylene Bromide 20 18.5 93 19.2 96 4 70-130/30
75-09-2 Methylene Chloride 20 19.0 95 19.5 98 3 70-130/30
78-93-3 Methyl Ethyl Ketone 50 54.8 110 49.8 100 10 70-130/30
108-10-1 4-Methyl-2-pentanone 50 44.4 89 45.0 90 1 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 19.2 96 22.9 115 18 70-130/30
91-20-3 Naphthalene 20 14.0 70 14.5 73 4 70-130/30
103-65-1 n-Propylbenzene 20 15.3 77 15.6 78 2 70-130/30
100-42-5 Styrene 20 19.1 96 19.3 97 1 70-130/30
630-20-6 1,1,1,2-Tetrachloroethane 20 19.6 98 19.6 98 0 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 14.6 73 14.5 73 1 70-130/30
127-18-4 Tetrachloroethylene 20 20.0 100 19.4 97 3 70-130/30
108-88-3 Toluene 20 20.6 103 20.5 103 0 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 14.9 75 16.1 81 8 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 15.7 79 16.7 84 6 70-130/30
71-55-6 1,1,1-Trichloroethane 20 19.4 97 21.6 108 11 70-130/30
79-00-5 1,1,2-Trichloroethane 20 18.3 92 18.7 94 2 70-130/30
79-01-6 Trichloroethylene 20 19.1 96 19.2 96 1 70-130/30
75-69-4 Trichlorofluoromethane 20 21.4 107 22.0 110 3 60-140/30
96-18-4 1,2,3-Trichloropropane 20 18.0 90 18.3 92 2 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 15.0 75 15.3 77 2 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 15.2 76 15.4 77 1 70-130/30
108-05-4 Vinyl Acetate 20 20.7 104 21.4 107 3 70-130/30
75-01-4 Vinyl Chloride 20 20.5 103 20.8 104 1 60-140/30
m,p-Xylene 40 36.7 92 37.1 93 1 70-130/30
95-47-6 o-Xylene 20 18.6 93 18.8 94 1 70-130/30
1330-20-7 Xylene (total)60 55.3 92 56.0 93 1 70-130/30
* = Outside of Control Limits.
82 of 87
LA8619755.2.1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA86197
Account:ATCNCR Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2G6427-BS1 2G508986.D 1 12/27/22 MB n/a n/a V2G6427
V2G6427-BSD1 2G509008.D 1 12/27/22 MB n/a n/a V2G6427
The QC reported here applies to the following samples:Method: SM 6200B
LA86197-1, LA86197-2, LA86197-3, LA86197-4, LA86197-5, LA86197-6, LA86197-7, LA86197-8, LA86197-9,
LA86197-10, LA86197-11, LA86197-12, LA86197-13, LA86197-14, LA86197-15, LA86197-16, LA86197-17, LA86197-
18, LA86197-19
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 107%119%70-130%
2037-26-5 Toluene-D8 98%101%70-130%
460-00-4 4-Bromofluorobenzene 109%108%70-130%
(a) Outside control limits biased low. Unable to re-analyze samples prior to sample expiration.
(b) RPD exceeded criteria. Unable to re-analyze samples prior to sample expiration.
* = Outside of Control Limits.
83 of 87
LA8619755.2.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 1
Job Number:LA86197
Account:ATCNCR Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2G6428-BS1 2G509011.D 1 12/27/22 MB n/a n/a V2G6428
V2G6428-BSD1 2G509012.D 1 12/27/22 MB n/a n/a V2G6428
The QC reported here applies to the following samples:Method: SM 6200B
LA86197-4, LA86197-6, LA86197-8, LA86197-11, LA86197-14, LA86197-15
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 54.4 109 54.0 108 1 70-130/30
71-43-2 Benzene 20 21.3 107 20.3 102 5 70-130/30
100-41-4 Ethylbenzene 20 20.0 100 19.0 95 5 70-130/30
91-20-3 Naphthalene 20 16.3 82 15.0 75 8 70-130/30
108-88-3 Toluene 20 21.9 110 21.2 106 3 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 17.0 85 15.6 78 9 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 17.5 88 15.8 79 10 70-130/30
m,p-Xylene 40 40.1 100 37.9 95 6 70-130/30
95-47-6 o-Xylene 20 20.3 102 19.4 97 5 70-130/30
1330-20-7 Xylene (total)60 60.4 101 57.4 96 5 70-130/30
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 112%129%70-130%
2037-26-5 Toluene-D8 101%101%70-130%
460-00-4 4-Bromofluorobenzene 104%109%70-130%
* = Outside of Control Limits.
84 of 87
LA8619755.2.2
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA86197
Account:ATCNCR Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA86197-14MS 2G509032.D 20 12/28/22 MB n/a n/a V2G6427
LA86197-14MSD 2G509033.D 20 12/28/22 MB n/a n/a V2G6427
LA86197-14 2G509002.D 1 12/27/22 MB n/a n/a V2G6427
The QC reported here applies to the following samples:Method: SM 6200B
LA86197-1, LA86197-2, LA86197-3, LA86197-4, LA86197-5, LA86197-6, LA86197-7, LA86197-8, LA86197-9,
LA86197-10, LA86197-11, LA86197-12, LA86197-13, LA86197-14, LA86197-15, LA86197-16, LA86197-17, LA86197-
18, LA86197-19
LA86197-14 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
67-64-1 Acetone 74.5 1000 594 52* a 1000 592 52* a 0 70-130/20
71-43-2 Benzene 612 E 400 975 91 400 1030 105 5 70-130/20
108-86-1 Bromobenzene ND 400 388 97 400 445 111 14 70-130/20
74-97-5 Bromochloromethane ND 400 433 108 400 435 109 0 70-130/20
75-27-4 Bromodichloromethane 0.30 J 400 422 105 400 451 113 7 70-130/20
75-25-2 Bromoform ND 400 449 112 400 517 129 14 70-130/20
104-51-8 n-Butylbenzene ND 400 204 51* a 400 524 131* a 88* a 70-130/20
135-98-8 sec-Butylbenzene 0.18 J 400 209 52* a 400 534 133* a 87* a 70-130/20
98-06-6 tert-Butylbenzene ND 400 241 60* a 400 625 156* a 89* a 70-130/20
56-23-5 Carbon Tetrachloride ND 400 276 69* a 400 298 75 8 70-130/20
108-90-7 Chlorobenzene ND 400 362 91 400 419 105 15 70-130/20
75-00-3 Chloroethane ND 400 310 78 400 326 82 5 60-140/20
67-66-3 Chloroform 5.0 400 395 98 400 402 99 2 70-130/20
95-49-8 o-Chlorotoluene ND 400 272 68* a 400 693 173* a 87* a 70-130/20
106-43-4 p-Chlorotoluene ND 400 276 69* a 400 696 174* a 86* a 70-130/20
124-48-1 Dibromochloromethane ND 400 431 108 400 494 124 14 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 400 379 95 400 916 229* a 83* a 70-130/20
106-93-4 1,2-Dibromoethane 2.9 400 419 104 400 476 118 13 70-130/20
75-71-8 Dichlorodifluoromethane ND 400 184 46* a 400 188 47* a 2 60-140/20
541-73-1 m-Dichlorobenzene ND 400 281 70 400 721 180* a 88* a 70-130/20
95-50-1 o-Dichlorobenzene ND 400 301 75 400 755 189* a 86* a 70-130/20
106-46-7 p-Dichlorobenzene ND 400 287 72 400 721 180* a 86* a 70-130/20
75-34-3 1,1-Dichloroethane ND 400 388 97 400 411 103 6 70-130/20
107-06-2 1,2-Dichloroethane 6.8 400 430 106 400 442 109 3 70-130/20
75-35-4 1,1-Dichloroethylene ND 400 218 55* a 400 225 56* a 3 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 400 379 95 400 408 102 7 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 400 334 84 400 350 88 5 70-130/20
78-87-5 1,2-Dichloropropane ND 400 415 104 400 438 110 5 70-130/20
142-28-9 1,3-Dichloropropane ND 400 421 105 400 481 120 13 70-130/20
594-20-7 2,2-Dichloropropane ND 400 282 71 400 294 74 4 70-130/20
563-58-6 1,1-Dichloropropene ND 400 272 68* a 400 292 73 7 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 400 414 104 400 433 108 4 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 400 409 102 400 472 118 14 70-130/20
108-20-3 Di-Isopropyl Ether 96.1 400 565 117 400 579 121 2 70-130/20
64-17-5 Ethyl Alcohol ND 8000 4760 60* b 8000 4690 59* b 1 70-130/20
100-41-4 Ethylbenzene 9.8 400 323 78 400 377 92 15 70-130/20
* = Outside of Control Limits.
85 of 87
LA8619755.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA86197
Account:ATCNCR Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA86197-14MS 2G509032.D 20 12/28/22 MB n/a n/a V2G6427
LA86197-14MSD 2G509033.D 20 12/28/22 MB n/a n/a V2G6427
LA86197-14 2G509002.D 1 12/27/22 MB n/a n/a V2G6427
The QC reported here applies to the following samples:Method: SM 6200B
LA86197-1, LA86197-2, LA86197-3, LA86197-4, LA86197-5, LA86197-6, LA86197-7, LA86197-8, LA86197-9,
LA86197-10, LA86197-11, LA86197-12, LA86197-13, LA86197-14, LA86197-15, LA86197-16, LA86197-17, LA86197-
18, LA86197-19
LA86197-14 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
591-78-6 2-Hexanone ND 1000 977 98 1000 1100 110 12 70-130/20
87-68-3 Hexachlorobutadiene ND 400 160 40* a 400 410 103 88* a 70-130/20
98-82-8 Isopropylbenzene 4.4 400 333 82 400 387 96 15 70-130/20
99-87-6 p-Isopropyltoluene ND 400 220 55* a 400 568 142* a 88* a 70-130/20
74-83-9 Methyl Bromide ND 400 422 106 400 462 116 9 60-140/20
74-87-3 Methyl Chloride ND 400 75.5 19* a 400 85.5 21* a 12 60-140/20
74-95-3 Methylene Bromide ND 400 410 103 400 433 108 5 70-130/20
75-09-2 Methylene Chloride ND 400 367 92 400 381 95 4 70-130/20
78-93-3 Methyl Ethyl Ketone ND 1000 830 83 1000 851 85 2 70-130/20
108-10-1 4-Methyl-2-pentanone ND 1000 1040 104 1000 1020 102 2 70-130/20
1634-04-4 Methyl Tert Butyl Ether ND 400 474 119 400 478 120 1 70-130/20
91-20-3 Naphthalene 53.9 400 377 81 400 936 221* a 85* a 70-130/20
103-65-1 n-Propylbenzene 0.68 400 236 59* a 400 618 154* a 89* a 70-130/20
100-42-5 Styrene ND 400 389 97 400 452 113 15 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 400 404 101 400 465 116 14 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 400 328 82 400 805 201* a 84* a 70-130/20
127-18-4 Tetrachloroethylene ND 400 266 67* a 400 317 79 17 70-130/20
108-88-3 Toluene 33.1 400 390 89 400 454 105 15 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 400 295 74 400 723 181* a 84* a 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 400 276 69* a 400 698 175* a 87* a 70-130/20
71-55-6 1,1,1-Trichloroethane ND 400 292 73 400 306 77 5 70-130/20
79-00-5 1,1,2-Trichloroethane ND 400 409 102 400 470 118 14 70-130/20
79-01-6 Trichloroethylene ND 400 300 75 400 323 81 7 70-130/20
75-69-4 Trichlorofluoromethane ND 400 229 57* a 400 230 58* a 0 60-140/20
96-18-4 1,2,3-Trichloropropane ND 400 396 99 400 461 115 15 70-130/20
95-63-6 1,2,4-Trimethylbenzene 5.9 400 274 67* a 400 697 173* a 87* a 70-130/20
108-67-8 1,3,5-Trimethylbenzene ND 400 257 64* a 400 659 165* a 88* a 70-130/20
108-05-4 Vinyl Acetate ND 400 518 130 400 521 130 1 70-130/20
75-01-4 Vinyl Chloride ND 400 255 64 400 266 67 4 60-140/20
m,p-Xylene 190 800 754 71 800 885 87 16 70-130/20
95-47-6 o-Xylene 33.8 400 377 86 400 436 101 15 70-130/20
1330-20-7 Xylene (total)224 1200 1130 76 1200 1320 91 16 70-130/20
* = Outside of Control Limits.
86 of 87
LA8619755.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA86197
Account:ATCNCR Atlas
Project:Pantry #176, 208 Main Street, Clayton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA86197-14MS 2G509032.D 20 12/28/22 MB n/a n/a V2G6427
LA86197-14MSD 2G509033.D 20 12/28/22 MB n/a n/a V2G6427
LA86197-14 2G509002.D 1 12/27/22 MB n/a n/a V2G6427
The QC reported here applies to the following samples:Method: SM 6200B
LA86197-1, LA86197-2, LA86197-3, LA86197-4, LA86197-5, LA86197-6, LA86197-7, LA86197-8, LA86197-9,
LA86197-10, LA86197-11, LA86197-12, LA86197-13, LA86197-14, LA86197-15, LA86197-16, LA86197-17, LA86197-
18, LA86197-19
CAS No.Surrogate Recoveries MS MSD LA86197-14 Limits
17060-07-0 1,2-Dichloroethane-D4 116%89%113%70-130%
2037-26-5 Toluene-D8 100%100%101%70-130%
460-00-4 4-Bromofluorobenzene 109%77%113%70-130%
(a) Outside control limits due to matrix interference. Blank Spike meets acceptance criteria.
(b) Outside control limits.
* = Outside of Control Limits.
87 of 87
LA8619755.3.1

APPENDIX G
CONTAMINANT MASS THROUGH TIME

0.0
200.0
400.0
600.0
800.0
1000.0
1200.0
1400.0
1600.0
5/1/1996 5/22/2000 10/19/201110/14/2012 9/18/2013 10/22/2015 11/7/2017 11/30/2018 5/14/2019 6/1/2020 11/23/2021 5/3/2022 12/13/2022Contaminant Mass (kg)Date
Contaminant Mass versus Time
Benzene Contaminant Mass