FA-743_13349_CA_MRP_20231212

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina 27604
Telephone [phone]
Fax [phone]
www.oneatlas.com

December 12, 2023

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

Re: Groundwater Monitoring Report
Former Hardy Gulf
484 Carthage Street
Cameron, Moore County, North Carolina
NCDEQ Incident No. 13349
Priority Site Ranking: I141D

Mr. Haseltine: ATC Associates of North Carolina, P.C. (ATC), on behalf of Cenama, LLC, is submitting this Montioring Report to document the recent groundwater sampling event and summary of laboratory analytical data. If you have any questions or require additional information, please contact our office at [phone]. Sincerely, ATC Associates of North Carolina, P.C. Maureen Jackson, P.G. Senior Project Manager
cc: Greta Stanley, Cenama, LLC

Groundwater Monitoring Report
Former Hardy Gulf
484 Carthage Street
Cameron, North Carolina
December 12, 2023

Site Identification

1. Site Identification
Date of Report: December 12, 2023
Facility I.D.: 0-020187 UST Incident Number (if known): 13349
Site Risk: __Intermediate______ Site Rank: I141D Land Use Category: Residential
Site Name: Former Hardy Gulf
Site Street Address: 484 Carthage Street
City/Town: Cameron Zip Code: 28326 County: Moore
Description of Geographical Data Point: UST Basin________
Location Method: Google Earth____________ ___________ __ _
Latitude (decimal degrees): _39º19’36” N_ Longitude (decimal degrees): __79°15’18” W_ _

2. Information about Contacts Associated with the Leaking UST System
UST Owner: Cenama, LLC
Address: 123 Shipyard Boulevard Wilmington, North Carolina 28412 Tel.: [phone]
UST Operator: __ Former Hardy Gulf
Address: 484 Carthage Street Cameron, North Carolina 28326 Tel.: Unknown
Property Owner: Military Industrial Sales and Solutions, Inc.
Address: P.O. Box 442 Cameron, North Carolina 28326 Tel.: Unknown
Property Occupant: Vacant
Address: 484 Carthage Street Cameron, North Carolina 28623 Tel.: Unknown
Consultant/Contractor: ATC Associates of North Carolina, P.C.
Address: 2725 E. Millbrook Road, Suite 121 Raleigh, North Carolina 27604 Tel.: [phone]
Analytical Laboratory: _SGS North America, Inc. State Certification No.__487 ___
Address: 500 Ambassador Caffery Scott, Louisiana 70583 Tel: _(337) 237-4775

3. Information about Release
Date Discovered: September 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:
Three 550-gallon USTs containing gasoline and kerosene
Criteria Used to Classify Risk: GCL Exceedances and Wellhead Protection Area

4. Information about the Monitoring Report
Date(s) of Groundwater Monitoring/Soil Sampling Event(s): October 2, 2023

TABLE OF CONTENTS
1.0 INTRODUCTION........................................................................................................1
2.0 EXECUTIVE SUMMARY .........................................................................................1
3.0 SITE HISTORY ...........................................................................................................2
4.0 GROUNDWATER MONITORING ..........................................................................3
4.1 Geology and Hydrogeology .................................................................................3
4.2 Groundwater Elevations.......................................................................................4
4.3 Groundwater Analytical Results ..........................................................................5
4.4 LNAPL Recovery ................................................................................................6
5.0 MONITORING PLAN AND SCHEDULE ...............................................................6
6.0 CONCLUSIONS ..........................................................................................................6
7.0 STATEMENTS AND CERTIFICATION ................................................................8

TABLES

Table 1 UST Owner/Operator and System Information
Table 2 Adjacent Property Ownership Information
Table 3 Monitoring Well Construction Details
Table 4 Historical and Current Groundwater Elevation Data
Table 5 Groundwater Analytical Summary
Table 6 Historical Groundwater Analytical Results
Table 7 Select Natural Attenuation Measurements
Table 8 Contaminant Mass Calculations (Benzene)
Table 9 Contaminant Mass Removal (Benzene)

FIGURES

Figure 1 Topographic Map
Figure 2 Site Map
Figure 3 Dissolved Benzene Isoconcentration Contour Map
Figure 4 Dissolved 1,2-Dichloroethane Isoconcentration Contour Map
Figure 5 MW-1: Dissolved Benzene Concentrations through Time versus Depth to
Water
Figure 6 MW-3: Dissolved Benzene Concentrations through Time versus Depth to
Water
Figure 7 TW-1: Dissolved Benzene Concentrations through Time versus Depth to
Water

APPENDICES

Appendix A Historical Soil Analytical Data and Soil Sample Location Map
Appendix B Geologic Transect and Cross-Section Maps
Appendix C Historical Groundwater Elevation Contour Maps
Appendix D Laboratory Analytical Results
Appendix E Contaminant Mass versus Time

Groundwater Monitoring Report December 12, 2023
NCDEQ Incident No.13349
Page 1

1.0 INTRODUCTION
ATC Associates of North Carolina, P.C. (ATC), on behalf of Cenama, LLC (Formerly Worsley
Companies, Inc.), is submitting this Groundwater Monitoring Report for the Former Hardy Gulf
located at 484 Carthage Street Cameron, Moore County, North Carolina (Incident #13349).
Currently, the site is vacant. A site topographic map is presented as Figure 1 and site map is
presented as Figure 2. UST owner/operator and system information is included in Table 1.

2.0 EXECUTIVE SUMMARY
Previous assessment activities identified petroleum-related impacts to soil around the former
UST system. It appears petroleum-related impacts to soil are present around soil borings S-3 and
S-5 to 30 feet below ground surface (bgs) and monitoring wells MW-1 and MW-3. Historical
soil analytical data along with a map depicting the locations of the soil samples are provided in
Appendix A.

Historically, it appears dissolved benzene concentrations were found to exceed established Gross
Contaminant Levels (GCLs) in the groundwater samples collected from monitoring wells MW-1,
MW-3, and TW-1. Historically, light non-aqueous phase liquid (LNAPL) has been detected in
monitoring wells MW-1, MW-3, and MW-5. Based on the calculated groundwater flow
direction across the site, impacted groundwater is likely migrating to the east. As a consequence
of assessment activities conducted at the facility, the horizontal and vertical extents of dissolved
petroleum hydrocarbon concentrations have been reasonably defined and area limited to the
vicinity of monitoring wells MW-1, MW-3, and TW-1. In 1995, the dissolved contaminant mass
at the site was estimated to cover an area approximately 6,000 square feet (ft2) resulting in:
• a calculated dissolved benzene mass of 133.7877 kilograms (kg);
• a calculated soil source zone benzene mass of 0 kg; and,
• a calculated smear source mass of 0 kg.
These calculations resulted in a total mass baseline/milestone benzene concentration of 133.7877
kg.

Based on the most recent groundwater analytical data (October 2023), the dissolved contaminant
mass at the site was estimated to cover an area approximately 200 ft2 resulting in a calculated
dissolved benzene mass of 0.5252 kg. To date, the dissolved benzene mass has decreased at the

Groundwater Monitoring Report December 12, 2023
NCDEQ Incident No.13349

Page 2
site by approximately 99.607%. Geologic transect and geologic cross-sections are included in
Appendix B.

Based on the current groundwater analytical results, ATC recommends continued annual
groundwater sampling of select monitoring wells. The next sampling event will be scheduled
during October 2024. ATC also recommends performing an air sparge (AS) enhanced Mobile
Multi-Phase Extraction (MMPE) using wells TW-1, TW-2, and/or TW-3 as the air sparge wells.

3.0 SITE HISTORY
The former UST system was owned and operated by Cenama (formerly Worsley Companies,
Inc.). During UST closure activities conducted on September 8, 1994, evidence of petroleum
contamination was identified. No petroleum impacted soil was removed during UST closure
activities. A site assessment/closure report was submitted to the North Carolina Department of
Environmental Quality (NCDEQ) by CBM Environmental Services, Inc. (CBM) on September
30, 1994.

On December 19, 1994, the NCDEQ issued a Notice of Regulatory Requirements (NORR)
requiring additional assessment activities. During subsequent assessment activities,
petroleum-impacted soil and groundwater were identified. The results of these activities were
provided in an Initial Site Characterization (ISC) Report, prepared by CMB and submitted to the
NCDEQ on February 2, 1995.

Based on the assessment results, further activities were performed to define the horizontal and
vertical extents of petroleum contamination at the site. During these activities, light non-aqueous
phase liquid (LNAPL) was encountered in monitoring wells MW-1, MW-3, and MW-5. The
results of these activities were presented to the NCDEQ in a Comprehensive Site Assessment
(CSA) Report by CBM on August 25, 1995.

In an attempt to mitigate the presence of LNAPL in monitoring wells, CBM personnel installed
passive bailers and absorbent socks in monitoring wells MW-1, MW-3, and MW-5. As of
September 21, 1995, CBM reportedly recovered 12.75 gallons of LNAPL from these wells.

Groundwater Monitoring Report December 12, 2023
NCDEQ Incident No.13349

Page 3
CBM reportedly performed product recovery activities on a bi-weekly basis and submitted
subsequent reports with these results to the NCDEQ.

At the request of NCDEQ and Worsley, personnel with Delta Environmental Consultants, Inc.
(Delta) performed additional activities in an attempt to abate LNAPL. Delta supervised a total of
ten aggressive fluid vapor recovery (AFVR) events. During these events, a total of
approximately 69 gallons of LNAPL, 105 gallons of vapor phase product, and 2,649 gallons of
petroleum-impacted groundwater were recovered.

In August 2010, Worsley awarded an environmental services contract to ATC for continuing
environmental activities at the site. Since 2010, several groundwater sampling events have
occurred along with soil sampling activities and LNAPL recovery.

The site is zoned for commercial use (B-2). Properties surrounding the subject facility are zoned
B-2 or residential (R-20). Commercial businesses and residential areas characterize the
surrounding area. Adjacent property owner information is included as Table 2.

According to the Town of Cameron, public water is supplied to the site and surrounding areas.
One municipal water supply well is located approximately 350 feet north of the source area.
Therefore, the site is located with a designated wellhead protection area (PWS ID NC03630540,
WHP #079), as defined in 42 USC 400h-7(e).

It should be noted a Notice of Residual Petroleum (restricting soil and groundwater) was
recorded for the property on May 20, 2021 due to a property transaction.

This report documents the results of the October 2023 groundwater sampling event.

4.0 GROUNDWATER MONITORING
4.1 Geology and Hydrogeology
According to the Geologic Map of North Carolina (Brown, et al., 1985), the site lies within the
Coastal Plain region. The surface sediment common to this area is dominated by clays and silts
intermixed with fine grained sand. Color of the sediments varies with depth and location. The

Groundwater Monitoring Report December 12, 2023
NCDEQ Incident No.13349

Page 4
lithology of the sediments as well as its physical properties such as porosity and permeability
varies both laterally and vertically. In the Coastal Plain region, pore networks of the sediments
are the major pathways for the movement of groundwater. The major driving force for
groundwater movement is hydraulic gradient, although capillarity may be the driving force in
certain circumstances. Geologic cross-sections are provided in Appendix B. The site is located
on a topographic area that slopes to the east. Figure 1 depicts the location of the site relative to
relevant surface features. The closest surface water body appears to be Little Crane Creek
located approximately 1,300 feet east of the source area. An unnamed water body is located
approximately 900 northeast of the source area.

Groundwater movement in the upper portion of the surficial aquifer appears to flow in an
easterly 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 suggest that a
vertical exchange of groundwater can occur between the upper and lower portions of the surficial
aquifer.

As part of the CSA, CBM performed pump tests and rising head slug tests using monitoring
wells MW-1 and MW-3. Based on the pump test and slug test results, the transmissivity to well
MW-3 was found to be 2.69 feet squared per day (ft2/day). The horizontal hydraulic
conductivity to the screened interval of monitoring well MW-3 was found to be 0.128 feet per
day (ft/day). Vertical hydraulic conductivity was found to be 0.034 ft/day. Storativity and
specific yield were found to be 0.013 and 0.023, respectively. An effective porosity was
assumed to be 10 percent (%); therefore, the seepage velocity was calculated to be approximately
45 feet pear year (ft/year).

4.2 Groundwater Elevations
On October 2, 2023, ATC collected static water level measurements from monitoring wells
MW-1, MW-3, TW-1, and TW-2.

Depths to water measurements were collected using an electronic oil/water interface probe. The
groundwater depths were converted to relative elevations using an assumed datum of 100 feet
relative to an arbitrary on-site benchmark. Monitoring well construction details are included in
Table 3. Current and historical groundwater elevation data are included in Table 4. Due to limited

Groundwater Monitoring Report December 12, 2023
NCDEQ Incident No.13349

Page 5
data points, a groundwater elevation contour map could not be generated. Historically, groundwater
appears to flow to the east across the site. Historical groundwater flow maps are provided in
Appendix C.

4.3 Groundwater Analytical Results
On October 2, 2023, groundwater samples were collected from monitoring wells MW-1, MW-3,
TW-1, and TW-2. 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 of Scott,
Louisiana, for analyses. Groundwater samples were analyzed for volatile organic compounds
(VOCs) via EPA Method 6200B. A summary of the recent groundwater analytical data is
presented in Table 5 and a historical summary of groundwater analytical data is presented in
Table 6. Select natural attenuation measurements are provided in Table 7.

The laboratory analytical results from the October 2023 sampling event detected a dissolved
benzene concentration above its established Gross Contamination Level (GCL) in the
groundwater sample collected from monitoring well MW-1. A dissolved 1,2-Dichloroethane
concentration was detected above its established GCL in the groundwater sample collected from
monitoring well TW-1. A dissolved benzene isoconcentration contour map is provided as
Figure 3. A 1,2-Dichloroethane isoconcentration contour map is provided as Figure 4. The
laboratory report and chain of custody documents are provided in Appendix D.

Groundwater concentrations trend plots for dissolved benzene concentrations versus depth to
water through time for monitoring wells MW-1, MW-3, and TW-1 are provided in Figures 5
through 7, respectively.

Historically, it appears dissolved benzene concentrations were found to exceed established Gross
Contaminant Levels (GCLs) in the groundwater samples collected from monitoring wells MW-1,
MW-3, and TW-1. Historically, light non-aqueous phase liquid (LNAPL) has been detected in
monitoring wells MW-1, MW-3, and MW-5. Based on the calculated groundwater flow

Groundwater Monitoring Report December 12, 2023
NCDEQ Incident No.13349

Page 6
direction across the site, impacted groundwater is likely migrating to the east. As a consequence
of assessment activities conducted at the facility, the horizontal and vertical extents of dissolved
petroleum hydrocarbon concentrations have been reasonably defined and area limited to the
vicinity of monitoring wells MW-1, MW-3, and TW-1. In 1995, the dissolved contaminant mass
at the site was estimated to cover an area approximately 6,000 square feet (ft2) resulting in:
• a calculated dissolved benzene mass of 133.7877 kilograms (kg);
• a calculated soil source zone benzene mass of 0 kg; and,
• a calculated smear source mass of 0 kg.
These calculations resulted in a total mass baseline/milestone benzene concentration of 133.7877
kg.

Based on the most recent groundwater analytical data (October 2023), the dissolved contaminant
mass at the site was estimated to cover an area approximately 200 ft2 resulting in a calculated
dissolved benzene mass of 0.5252 kg. To date, the dissolved benzene mass has decreased at the
site by approximately 99.607%. The contaminant mass calculations are provided in Table 8 and
contaminant mass removal is provided in Table 9. Contaminant mass versus time is provided in
Appendix E.

4.4 LNAPL Recovery
Historically, LNAPL has been detected in monitoring wells MW-1, MW-3, and MW-5. Various
activities have been conducted at the site since 1995 to attempt to mitigate LNAPL from the site.
To date, approximately 85.75 gallons of LNAPL, 106.32 gallons of vapor, and 3,068 gallons of
petroleum-impacted groundwater have been recovered at the site. LNAPL has not been measured
in the monitoring wells since April 2015.

5.0 MONITORING PLAN AND SCHEDULE
Based on the current groundwater analytical results, ATC recommends continued annual
groundwater sampling of select monitoring wells. The next sampling event will be scheduled
during October 2024. ATC also recommends performing an air sparge (AS) enhanced Mobile
Multi-Phase Extraction (MMPE) using wells TW-1, TW-2, and/or TW-3 as the air sparge wells.

6.0 CONCLUSIONS

Groundwater Monitoring Report December 12, 2023
NCDEQ Incident No.13349

Page 7
ATC has performed a groundwater sampling event at the Former Hardy Gulf facility in
Cameron, North Carolina. Based on field activities, observations, and groundwater analytical
results, ATC concludes the following:
• Depth to groundwater measurements ranged from 26.22 feet to 31.55 feet below ground
October 2023 sampling event, groundwater appears to flow across the site in a easterly
direction;
• The site is located within a wellhead protection area;
• LNAPL was not detected during the October 2023 sampling event;
• Previous assessment activities identified petroleum-related impacts to soil in the area of the
former UST location;
• Laboratory analytical results from the October 2023 sampling event detected dissolved target
compound concentrations above GCLs in the groundwater samples collected from
monitoring well MW-1 and TW-1;
• It appears dissolved target compound concentrations have decreased significantly in several
of the monitoring wells at the site since 1995; and,
• Based on the most recent groundwater analytical data, the dissolved contaminant mass at the
site was estimated to cover an area approximately 200 ft2 resulting in a calculated dissolved
benzene mass of 0.5252 kg. To date, the dissolved benzene mass has decreased at the site by
approximately 99.607%. kg.

Based on the current groundwater analytical results, ATC recommends continued annual
groundwater sampling of select monitoring wells. The next sampling event will be scheduled
during October 2024. ATC also recommends performing an air sparge (AS) enhanced Mobile
Multi-Phase Extraction (MMPE) using wells TW-1, TW-2, and/or TW-3 as the air sparge wells.

TABLES
TABLE 1
UST OWNER/OPERATOR AND SYSTEM INFORMATION
FORMER HARDY GULF
484 CARTHAGE STREET
CARTHAGE, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
UST ID
Number
Current/Last
Contents
Previous
Contents
Capacity
(gallons)Construction Details
Description of
Associated Piping
and Pumps Date Tank Installed
Date Tank
Removed
Status of
UST
Was Release
Associates
with the UST
System?
1 Gasoline None 550 Unknown Unknown Unknown 1994 Removed Yes
2 Gasoline None 550 Unknown Unknown Unknown 1994 Removed Yes
3 Kerosene None 550 Unknown Unknown Unknown 1994 Removed Yes
AST ID
Number
Current/Last
Contents
Previous
Contents
Capacity
(gallons)Construction Details Tank Dimensions
Description of
Associated Piping
and Pumps
Date Tank
Installed
Status of
AST
Was Release
Associates
with the AST
System?
UST ID Number All Facility ID Number
City State Zip
Wilmington NC 28412
City State Zip
Cameron NC 28326
None associated with this site
0-020187
Name of Owner Dates of Operation (MM/DD/YY to MM/DD/YY)
Cenama, Inc. (Formerly Worsley Companies)Unknown to 1994
Street Address
123 Shipyard Boulevard
Telephone Number
910-343-1991
Name of Operator Dates of Operation (MM/DD/YY to MM/DD/YY)
Hardy Gulf Unknown to 1994
Street Address
484 Carthage Street
Telephone Number
Unknown
TABLE 2
ADJACENT PROPERTY OWNERSHIP INFORMATION
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Property Property Owner Property Owner Address
Property Description/
Zoning Property Address
Site:
Vacant
Military Industrial Sales
and Solutions, Inc.
P.O. Box 442
Cameron, NC 28326 Vacant/Commercial (B-2)484 Carthage Street
North of the Site:
Town of Cameron Fire
Department
Town of Cameron P.O. Box 248
Cameron, NC 28326
Fire
Department/Commercial
(B-2)
253 Carter Street
South of the Site:
Old Hardware Antiques
Kenneth and Jane
Fairbanks
P.O. box 120
Cameron, NC 28326
Antique Store/Commercial
(B-2)485 Carthage Street
West of the Site:
Residential Ryan and Ashley Urice 500 Carthage Street
Cameron, NC 28326
Residential/Residential (R-
20)500 Carthage Street
East of the Site:
Undeveloped
Joseph and Rebecca
Workman
P.O. Box 125
Cameron, NC 28326 Vacant/Commercial (B-2)NC 24-27 Highway
TABLE 3
MONITORING WELL CONSTRUCTION DETAILS
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
MW-1 Unknown 2 20-35 35 100.00
MW-2 Unknown 2 40-50 50 100.73
MW-3 Unknown 4 20-50 50 99.85
MW-4 Unknown 2 27-50 50 100.82
MW-5 Unknown 2 29-50 50 96.74
MW-6 Unknown 2 29-50 50 86.44
MW-7 Unknown 2 28-50 50 101.53
MW-8 Unknown 2 28-50 50 98.45
MW-9 Unknown 2 28-50 50 88.02
MW-10 Unknown 2 28-50 50 97.36
TW-1 Unknown 2 Unknown 45 99.97
TW-2 Unknown 2 Unknown 68.5 Unknown
TW-3 3/22/2013 2 75-80 80 100.15
Depth of Well
(feet)
Top of Casing
(feet)
Monitoring
Well ID Date Installed
Well Casing
Diameter
(Inches)
Screened
Interval
(feet)
TABLE 4
HISTORICAL AND CURRENT GROUNDWATER ELEVATION DATA
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
8/1/2012 29.91 29.72 0.19 70.24*
4/9/2013 29.72 ----70.28
4/21/2014 14.61 14.58 0.03 85.41*
4/15/2015 16.58 ----83.42
4/5/2016 15.92 ----84.08
5/25/2017 15.60 ----84.40
6/18/2018 22.40 ----77.60
6/18/2019 15.64 ----84.36
12/12/2019 24.88 ----75.12
12/29/2020 12.77 ----87.23
12/21/2021 27.48 ----72.52
5/17/2022 21.74 ----78.26
11/9/2022 27.98 ----72.02
4/27/2023 16.96 ----83.04
10/2/2023 26.22 ----73.78
8/1/2012 40.04 ----<1.50
4/9/2013 38.45 ----62.28
4/21/2014 27.66 ----73.07
4/15/2015
4/5/2016 27.83 ----72.90
5/25/2017 27.53 ----73.20
6/18/2018 33.46 ----67.27
6/18/2019 28.23 ----72.50
12/12/2019 35.63 ----65.10
12/29/2020 26.39 ----74.34
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
8/1/2012 30.86 ----68.99
4/9/2013 30.22 ----69.63
4/21/2014 16.19 ----83.66
4/15/2015 18.08 ----81.77
4/5/2016 17.22 ----82.63
5/25/2017 16.93 ----82.92
6/18/2018 23.28 ----76.57
6/18/2019 17.38 ----82.47
12/12/2019 26.16 ----73.69
12/29/2020 14.63 ----85.22
12/21/2021 27.31 ----72.54
5/17/2022 22.88 ----76.97
11/9/2022 28.8 ----71.05
4/27/2023 18.65 ----81.20
10/2/2023 26.48 ----73.37
Well Not Measured
100.00MW-1
99.85
Well Could Not Be Accessed - under water
100.73
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
MW-3
MW-2
Monitoring
Well ID
Top of
Casing (feet)
Depth to
Water (feet)
Depth to
LNAPL
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)Date
TABLE 4
HISTORICAL AND CURRENT GROUNDWATER ELEVATION DATA
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
100.00MW-1
Monitoring
Well ID
Top of
Casing (feet)
Depth to
Water (feet)
Depth to
LNAPL
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)Date
8/1/2012 47.49 ----53.33
4/9/2013 45.61 ----55.21
4/21/2014 37.70 ----63.12
4/15/2015 38.54 ----62.28
4/5/2016 38.21 ----62.61
5/25/2017 37.90 ----62.92
6/18/2018 42.48 ----58.34
6/18/2019 38.20 ----62.62
12/12/2019 43.80 ----57.02
12/29/2020 36.92 ----63.90
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
8/1/2012 32.70 32.67 0.03 64.06*
4/9/2013 33.35 33.34 0.01 63.41*
4/21/2014 18.51 18.49 0.02 78.24*
4/17/2015 20.06 ----76.68
4/5/2016 19.65 ----77.09
5/25/2017 19.31 ----77.43
6/18/2018 25.30 ----71.44
6/18/2019 20.30 ----76.44
12/12/2019 27.18 ----69.56
12/29/2020 16.48 ----80.26
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
8/1/2012 20.93 ----65.51
4/9/2013 20.02 ----66.42
4/21/2014 9.73 ----76.71
4/15/2015 13.7 ----72.74
4/5/2016 14.07 ----72.37
5/25/2017 13.73 ----72.71
8/1/2012 31.65 ----69.88
4/9/2013 28.98 ----72.55
4/21/2014 17.71 ----83.82
4/15/2015 18.87 ----82.66
4/5/2016 18.82 ----82.71
5/25/2017 18.50 ----83.03
6/18/2018 23.55 ----77.98
6/18/2019 20.00 ----81.53
12/12/2019 26.30 ----75.23
12/29/2020 16.76 ----84.77
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
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 Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Paved Over
96.74
100.82
101.53
86.44
MW-7
MW-5
MW-4
MW-6
TABLE 4
HISTORICAL AND CURRENT GROUNDWATER ELEVATION DATA
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
100.00MW-1
Monitoring
Well ID
Top of
Casing (feet)
Depth to
Water (feet)
Depth to
LNAPL
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)Date
8/1/2012 32.08 ----66.37
4/9/2013 30.75 ----67.70
4/21/2014 17.53 ----80.92
4/17/2015 18.92 ----79.53
4/5/2016 18.63 ----79.82
5/25/2017 18.29 ----80.16
6/18/2018 23.86 ----74.59
6/18/2019 18.76 ----79.69
12/12/2019 25.58 ----72.87
12/29/2020 15.39 ----83.06
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
8/1/2012 27.90 ----60.12
4/9/2013 27.16 ----60.86
4/21/2014 17.12 ----70.90
4/17/2015 19.01 ----69.01
4/5/2016 20.70 ----67.32
5/25/2017 20.40 ----67.62
6/18/2018 23.73 ----64.29
6/18/2019 21.24 ----66.78
12/12/2019 25.07 ----62.95
12/29/2020 16.72 ----71.30
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
8/1/2012 44.63 ----52.73
4/9/2013 42.73 ----54.63
4/21/2014 35.62 ----61.74
4/15/2015 36.44 ----60.92
4/5/2016 36.22 ----61.14
5/25/2017 35.88 ----61.48
6/18/2018 39.87 ----57.49
6/18/2019 36.2 ----61.16
12/12/2019 33.33 ----64.03
12/29/2020 33.85 ----63.51
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
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 Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
97.36
88.02
98.45
MW-10
MW-9
MW-8
TABLE 4
HISTORICAL AND CURRENT GROUNDWATER ELEVATION DATA
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
100.00MW-1
Monitoring
Well ID
Top of
Casing (feet)
Depth to
Water (feet)
Depth to
LNAPL
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation (feet)Date
8/1/2012 29.13 ----70.84
4/9/2013 30.29 ----69.68
4/21/2014 17.38 ----82.59
4/15/2015 18.85 ----81.12
4/5/2016 17.31 ----82.66
5/25/2017 17.03 ----82.94
6/18/2018 24.39 ----75.58
6/18/2019 17.11 ----82.86
12/12/2019 24.88 ----75.09
12/29/2020 14.5 ----85.47
12/21/2021 28.13 ----71.84
5/17/2022 23.25 ----76.72
11/9/2022 28.78 ----71.19
4/27/2023 18.65 ----81.32
10/2/2023 28.93 ----71.04
8/1/2012 34.85 ----NS
4/9/2013 33.56 ----NS
4/21/2014 21.22 ----NS
4/15/2015 22.92 ----NS
4/5/2016 22.53 ----NS
5/25/2017 22.18 ----NS
6/18/2018 27.42 ----NS
6/18/2019 23.04 ----NS
12/12/2019 29.42 ----NS
12/29/2020 19.52 ----NS
12/21/2021 32.72 ----NS
5/17/2022 27.39 ----NS
11/9/2022 32.65 ----NS
4/27/2023 23.55 ----NS
10/2/2023 31.55 ----NS
4/9/2013 33.36 ----66.79
4/21/2014 20.98 ----79.17
4/15/2015 26.17 ----73.98
4/5/2016 23.03 ----77.12
5/25/2017 22.70 ----77.45
6/18/2018 28.90 ----71.25
6/18/2019 21.75 ----78.40
12/12/2019 26.41 ----73.74
12/29/2020 20.30 ----79.85
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
Notes:
1. Elevations are referenced to an arbitrary on-site benchmark of 100.00 feet.
2. Groundwater data prior to 2012 is on file at NCDEQ in previous reports.
3. LNAPL = Light non-aqueous phase liquid.
4. Groundwater elevation corrected for presence of LNAPL calculated by:
[(TOC elevation - depth to groundwater)+(0.8581*Product Thickness)]
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
100.15
NS
99.97TW-1
TW-3
TW-2
TABLE 5
GROUNDWATER ANALYTICAL SUMMARY
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Well ID
Date
Collected
MW-1 10/2/2023 7,360 3,250 2,390 16,800 29,800 <50 23.8J 630 <50 15.7J 63.0 3,280 879 249 23.3J 103 333
MW-3 10/2/2023 4,770 184 2,280 8,870 16,104 <25 23.3J 525 <25 8.7J 34.7 1,910 500 297 <15 96.1 259
TW-1 10/2/2023 3,500 87.2 517 331 4,435.2 310 48.4 80.5 <25 <25 <25 116 45.4 586 15.0 54.7 49.5
TW-2 10/2/2023 31.4 <25 <25 11.4J 42.8J 121 21.7J <25 4.8J <25 <25 <25 <25 324 <15 <25 <25
5,000 260,000 84,500 85,500 NE 20,000 70,000 6,000 5,000 11,700 NE 28,500 25,000 400 600 25,000 30,000
Notes:
1. "<" or ND = Not detected at or above the laboratory detection limit.
2. Concentrations are reported in micrograms per liter (mg/l) = parts per billion.
3. Concentrations in bold print equal or exceed the NCDEQ GCL.
4. GCL = Gross Contaminantion Level.
5. NE = Not Established.
6. MTBE = Methyl Tertiary Butyl Ether.
7. Gross Contamination Levels for Groundwater are referenced in the Guidelines for Assessment
and Corrective Action, November 2008, updated January 2010.
8. BTEX = Benzene, Toluene, Ethylbenzene, Total Xylenes n-Propylbenzene1,3,5-Trimethylbenzene1,2-Dichloroethanep-Isopropyltoluene1,2,3-TrichloropropaneGCL (mg/l)MTBEEthylbenzeneTotal XylenesTotal BTEXIsopropylbenzeneEPA Method 6200B
1,2-DichloropropaneAnalytical Method
Contaminant of
Concern
BenzeneTolueneIsopropyl etherNaphthaleneMethylene Chloride1,2,4-Trimethylbenzene
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Well ID
Date
Collected
8/1/2012
4/9/2013 24,000 44,000 83,000 470,000 590 34,000
4/21/2014
4/15/2015 9,240 20,900 2,830 16,980 305 809
4/5/2016 9,100 18,000 3,300 18,600 240 690
5/25/2017 8,600 22,000 3,100 19,000 200 880
6/18/2018 9,900 8,200 3,200 20,200 350 690
6/18/2019 4,190 13,000 2,160 15,000 <100 409
12/12/2019 5,350 3,810 1,390 8,720 <100 240
12/29/2020 3,960 18,200 3,230 22,000 <100 693
12/20/2021 6,260 6,780 2,540 15,100 213 710
5/17/2022 8,990 4,450 2,530 17,700 252 646
11/9/2022 6,220 6,800 3,210 23,500 <50 759
4/27/2023 4,420 1,940 2,570 20,500 <50 1,370
10/2/2023 7,360 3,250 2,390 16,800 <50 630
8/1/2012 <0.1 <0.1 <0.1 <0.3 <1.50 <0.1
4/9/2013 <0.1 <0.1 <0.2 <0.6 7.4 <0.5
4/21/2014 <0.50 <0.50 <0.50 <1.50 <0.50 <2.0
4/15/2015
4/5/2016 2.3 0.69 3.3 15.8 2.7 1.1
5/25/2017 <0.50 <0.50 <0.50 <1.50 0.21J <1.0
6/18/2018 0.23J <0.50 <0.50 <1.50 0.50 <5.0
6/18/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/12/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/29/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/20/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023 Naphthalene0.19 feet Free ProductEthylbenzene
MW-1
MW-2
Well Could Not Be Accessed - under water
Contaminant of Concern
BenzeneToluene0.03 feet Free ProductTotal XylenesMTBEWell Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Well ID
Date
Collected Naphthalene0.19 feet Free ProductEthylbenzene
MW-1
Contaminant of Concern
BenzeneTolueneTotal XylenesMTBE8/1/2012 7,800 560 2,400 15,700 240 1,400
4/9/2013 8,100 740 3,300 18,200 230 1,100
4/21/2014 950 573 483 4,360 30 167
4/15/2015 6,680 704 2,310 9,740 195 676
4/5/2016 6,400 1,000 2,900 13,600 120 550
5/25/2017 190 21 20 271 41 15
6/18/2018 1,400 61 88 2,410 55 120
6/18/2019 2,280 402 1,260 7,820 95.5 358
12/12/2019 1,290 180 1,190 5,820 67.9 385
12/30/2020 982 78.8 593 4,420 57.6 318
12/20/2021 3,430 181 1,870 8,770 137 679
5/17/2022 3,300 206 1,950 9,930 99.0J 390
11/9/2022 7,470 268 6,170 16,400 <25 1,560
4/27/2023 5,740 269 3,190 14,400 140 1,070
10/2/2023 4,770 184 2,280 8,870 <25 525
8/1/2012 48 0.67 4.4 3 30 <0.9
4/9/2013 63 0.39 4.6 1.4 23 <0.5
4/21/2014 <0.50 <0.50 <0.50 <1.50 <0.50 <2.0
4/15/2015 20.9 <0.25 0.33J <0.75 1.9 <1.0
4/5/2016 180 1.1 11 11.6 34 3
5/25/2017 2.4 <0.50 <0.50 <1.50 0.23J <1.0
6/18/2018 59 0.40J 0.62J 1.66J 11 4.2J
6/18/2019 10.4 <0.50 <0.50 <0.50 1.0 <0.50
12/12/2019 42.6 <0.50 1.5 <0.50 34.1 0.91
12/29/2020 31.8 <0.50 <0.50 <0.50 3.0 <0.50
12/20/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
Well Not Sampled
MW-3
MW-4
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Well ID
Date
Collected Naphthalene0.19 feet Free ProductEthylbenzene
MW-1
Contaminant of Concern
BenzeneTolueneTotal XylenesMTBE8/1/2012
4/9/2013
4/21/2014
4/17/2015 1,210 1,880 2,760 9,900 <12.5 607
4/5/2016 1,600 1,800 2,800 8,300 <9 350
5/25/2017 1,100 1,100 2,400 6,900 <20 530
6/18/2018 1,200 820 3,000 7,500 <25 400
6/18/2019 447 403 1,330 3,920 <10 264
12/12/2019 1,400 521 2,630 6,940 <10 1,220
12/29/2020 5.1 5.5 47.6 121 <0.50 12.6
12/20/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
8/1/2012 <0.1 <0.1 <0.1 <0.3 <0.2 0.25
4/9/2013 <0.1 <0.1 <0.2 <0.6 <0.2 >0.5
4/21/2014 <0.50 <0.50 <0.50 <1.50 <0.50 <2.0
4/15/2015 1.1 3.3 0.81 5.1 <0.25 <1.0
4/5/2016 <0.12 <0.17 0.35J 1.37 <0.090 <0.12
5/25/2017 <0.50 <0.50 <0.50 <1.50 <0.50 <1.0
8/1/2012 <0.1 <0.1 <0.1 <0.3 <0.2 <0.1
4/9/2013 <0.1 <0.1 <0.2 <0.6 <0.2 >0.5
4/21/2014 <0.50 <0.50 <0.50 <1.50 <0.50 <2.0
4/15/2015 1.4 9.5 2.8 17.6 <0.25 <1.0
4/5/2016 16 5.7 26 138 <0.090 8.6
5/25/2017 <0.50 <0.50 <0.50 <1.50 <0.50 <1.0
6/18/2018 <0.50 <0.50 <0.50 <1.50 <0.50 <5.0
6/18/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/12/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/29/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/20/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
0.02 feet Free Product
MW-7
MW-6
MW-5
Well Paved Over
0.03 feet Free Product
0.01 feet Free Product
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Well ID
Date
Collected Naphthalene0.19 feet Free ProductEthylbenzene
MW-1
Contaminant of Concern
BenzeneTolueneTotal XylenesMTBE8/1/2012 17 <0.1 <0.1 <0.3 <0.2 <0.1
4/9/2013 <0.1 <0.1 <0.2 <0.6 <0.2 >0.5
4/21/2014 <0.50 <0.50 <0.50 <1.50 <0.50 <2.0
4/17/2015 <0.25 <0.25 <0.25 <0.75 <0.25 <1.0
4/5/2016 1 0.34J 2 10.5 <0.090 1.2
5/25/2017 <0.50 <0.50 <0.50 <1.50 <0.50 <1.0
6/18/2018 <0.50 <0.50 <0.50 <1.50 <0.50 <5.0
6/18/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/12/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/29/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/20/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
8/1/2012 2.1 <0.1 0.44 1.41 <0.2 0.85
4/9/2013 10 0.28 11 38.4 <0.2 1.9
4/21/2014 <0.50 <0.50 <0.50 <1.50 <0.50 <2.0
4/17/2015 5.2 5.0 0.63 3.7 <0.25 <1.0
4/5/2016 1.7 0.18J 0.74 3.23 <0.090 <0.12
5/25/2017 <0.50 <0.50 <0.50 <1.50 <0.50 <1.0
6/18/2018 <0.50 <0.50 <0.50 <1.50 <0.50 <5.0
6/18/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/12/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/29/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/20/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
Well Not Sampled
Well Not Sampled
MW-8
MW-9
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 6
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Well ID
Date
Collected Naphthalene0.19 feet Free ProductEthylbenzene
MW-1
Contaminant of Concern
BenzeneTolueneTotal XylenesMTBE8/1/2012 1.4 <0.3 0.47 1.5 <0.6 <0.9
4/9/2013 1.4 <0.1 <0.2 <0.6 <0.2 >0.5
4/21/2014 <0.50 <0.50 <0.50 <1.50 <0.50 <2.0
4/15/2015 <0.25 <0.25 <0.25 <0.75 <0.25 <1.0
4/5/2016 2.8 0.73 4 14.8 <0.090 2.5
5/25/2017 <0.50 <0.50 <0.50 <1.50 <0.50 <1.0
6/18/2018 <0.50 <0.50 <0.50 <1.50 <0.50 <5.0
6/18/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/12/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/29/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
12/20/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
8/1/2012 4,500 220 500 609 390 120
4/9/2013 7,200 160 380 388 520 88
4/21/2014 427 <25.0 <25.0 <75.0 319 <100
4/15/2015 4,820 231 588 773.8 424 132
4/5/2016 5,500 240 640 1,242J 350 98
5/25/2017 17 0.95J 1.2J 2.4J 29 <5.0
6/18/2018 820 32 110 228.2J 130 67J
6/18/2019 3,740 87.8 156 552 400 98.0
12/12/2019 1,750 51.0 55.3 288 353 157
12/29/2020 4,310 133 517 350 376 66.3
12/20/2021 1,680 57.7 226 199 383 41.1
5/17/2022 3,490 75.4 158 141 458 <47.0
11/9/2022 3,160 75.4 485 252 326 101
4/27/2023 2,970 84.5 426 281 310 94.4
10/2/2023 3,500 87.2 517 331 310 80.5
Well Not Sampled
TW-1
MW-10
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 6
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Well ID
Date
Collected Naphthalene0.19 feet Free ProductEthylbenzene
MW-1
Contaminant of Concern
BenzeneTolueneTotal XylenesMTBE8/1/2012 100 4.9 4.6 2.4 260 4.8
4/9/2013 17 1.3 6.6 1.2 130 <2.5
4/21/2014 <10.0 <10.0 <10.0 25.6 78.4 <40.0
4/15/2015 3.3 <0.25 0.97 <0.75 73.1 <1.0
4/5/2016 58 1.8J 12 1.2J 100 2.3J
5/25/2017 1.1 <1.0 <1.0 <3.0 73 <2.0
6/18/2018 36 1.2 5.5 0.44J 93 1.3J
6/18/2019 16.0 0.65 4.6 <0.50 112 <0.50
12/12/2019 29.9 1.3 4.9 0.80 151 <0.50
12/29/2020 236 <5.0 72.9 5.2 206 13.1
12/20/2021 33.2 4.6 11.4 3.0 155 2.1J
5/17/2022 160 2.48 45 1.65J 211 4.61
11/9/2022 10.5 <2.5 7.1 <2.5 131 2.6
4/27/2023 <25 <25 <25 <25 101 <25
10/2/2023 31.4 <25 <25 11.4J 121 <25
4/9/2013 1,300 150 430 2,310 46 63
4/21/2014 <10.0 <10.0 <10.0 <30.0 55.2 <40.0
4/15/2015 1.3 <0.25 0.36J 0.97J 69.8 <1.0
4/5/2016 41.0 4.6 10 22.50 12 4.2
5/25/2017 0.46J <1.0 0.60J <3.0 0.46J <2.0
6/18/2018 0.44J <1.0 <1.0 <3.0 <1.0 <10
6/18/2019 <2.5 <2.5 <2.5 5.1 63.1 <2.5
12/12/2019 <2.5 <2.5 12.5 35.7 84.5 8.4
12/30/2020 <2.5 <2.5 <2.5 <2.5 161 <2.5
12/20/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
5,000 260,000 84,500 85,500 20,000 6,000
Notes:
1. "<" or ND = Not detected at or above the laboratory detection limit.
2. Concentrations are reported in micrograms per liter (mg/l) = parts per billion.
3. Concentrations in bold print equal or exceed the NCDEQ GCL.
4. GCL = Gross Contaminantion Level.
5. MTBE = Methyl Tertiary Butyl Ether.
6. Gross Contamination Levels for Groundwater are referenced in the Guidelines for Assessment
and Corrective Action, November 2008, updated January 2010.
7. J value denotes estimated concentration by laboratory.
TW-3
TW-2
GCL (mg/l)
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
Well Not Sampled
TABLE 7
SELECT NATURAL ATTENUATION MEASUREMENTS

FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Monitoring
Well ID Date pH (unitless)
Dissolved
Oxygen
(mg/L)
Specific
Conductivity
(µs/cm2)
Temperature
(Celcius)ORP (Eh)
6/18/2019 5.57 1.82 163.1 23.1 84.1
12/12/2019
12/21/2021 6.49 0.63 0.284 19.70 71.1
5/17/2022
11/9/2022
4/27/2023
10/2/2023
6/18/2019 5.74 0.98 162.6 26.2 149.7
12/12/2019
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
6/18/2019 5.62 1.40 160.3 23.3 73.2
12/12/2019
12/21/2021 6.48 0.60 0.214 19.65 73.2
5/17/2022
11/9/2022
4/27/2023
10/2/2023 6.03 1.94 0.323 28.80 -41.4
6/18/2019 6.01 1.23 60.0 28.8 219.0
12/12/2019
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements - YSI Faulty
No Measurements Taken
No Measurements Taken - Strong Petro Odor
No Measurements - YSI Faulty
No Measurements Taken
No Measurements Taken
No Measurements Taken
MW-1
MW-2
MW-3
MW-4
No Measurements - YSI Faulty
No Measurements Taken - Strong Petro Odor
No Measurements Taken
No Measurements - YSI Faulty
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken - Strong Petro Odor
No Measurements Taken
No Measurements Taken
TABLE 7
SELECT NATURAL ATTENUATION MEASUREMENTS

FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Monitoring
Well ID Date pH (unitless)
Dissolved
Oxygen
(mg/L)
Specific
Conductivity
(µs/cm2)
Temperature
(Celcius)ORP (Eh)
MW-1
6/18/2019 5.87 1.38 280.1 26.1 4.7
12/12/2019
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
6/18/2019 5.18 4.62 116.5 24.8 196.0
12/12/2019
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
6/18/2019 6.19 4.03 137.3 24.0 120.0
12/12/2019
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
6/18/2019 5.05 3.20 189.6 28.1 190.3
12/12/2019
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023 No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
MW-8
MW-7
No Measurements - YSI Faulty
MW-9
MW-5
No Measurements Taken
No Measurements - YSI Faulty
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements - YSI Faulty
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements - YSI Faulty
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
TABLE 7
SELECT NATURAL ATTENUATION MEASUREMENTS

FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Monitoring
Well ID Date pH (unitless)
Dissolved
Oxygen
(mg/L)
Specific
Conductivity
(µs/cm2)
Temperature
(Celcius)ORP (Eh)
MW-1
6/18/2019 5.24 3.07 37.1 23.0 201.2
12/12/2019
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
6/18/2019 6.64 1.15 560.0 22.6 -52.8
12/12/2019
12/21/2021 6.49 0.76 0.515 19.04 67.1
5/17/2022
11/9/2022 6.68 2.27 0.474 20.7 9.3
4/27/2023
10/2/2023 6.53 1.41 0.590 23.40 -42.6
6/18/2019 6.66 4.87 396.3 23.5 28.7
12/12/2019
12/21/2021 6.51 0.63 0.490 19.22 59.3
5/17/2022
11/9/2022 6.15 3.13 0.348 19.5 113.6
4/27/2023
10/2/2023 6.48 3.13 0.436 23.20 32.5
6/18/2019 7.05 1.74 519.5 22.6 -43.1
12/12/2019
12/21/2021
5/17/2022
11/9/2022
4/27/2023
10/2/2023
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements - YSI Faulty
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
MW-10
TW-1
TW-2
TW-3
No Measurements - YSI Faulty
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements - YSI Faulty
No Measurements Taken
No Measurements - YSI Faulty
No Measurements Taken
TABLE 8
CONTAMINANT MASS CALCULATIONS (Benzene)
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Year Area (FT^2)*Thickness (FT) Effective Porosity Volume (FT^3) Volume (L)
Benzene
Concentration
(ug/L**)
Benzene Mass
(kg)
1995 6,000 70 0.18 75,600.00 2,140,604 62,500 133.7877
2012 6,000 70 0.18 75,600.00 2,140,604 44,080 94.3578
2015 1,600 70 0.18 20,160.00 570,828 15,920 9.0876
2023 400 70 0.18 5,040.00 142,707 5,740 0.8191
2023 200 70 0.18 2,520.00 71,353 7,360 0.5252
Notes:
Area (FT^2)*Thickness (FT)Density (gm/cm^3)Volume (FT^3)Volume (cm^3)Mass (kg)
Benzene
Concentration
(mg/kg)**
Benzene Mass
(kg)
---------------
Notes:
* Area based on groundwater impact above GCL
** Sum of benzene concentrations in source area
Area (FT^2)*Thickness (FT)**Density (gm/cm^3)Volume (FT^3)Volume (cm^3)Mass (kg)
Benzene
Concentration
(mg/kg)**
Benzene Mass
(kg)
---------------
Notes:
* Area based on groundwater impact above GCL
** Smear zone average for soil borings in area above GCL
** Sum of benzene concentrations in source area
BENZENE MASS CONCENTRATIONS (Groundwater)
SOIL SOURCE ZONE MASS CONCENTRATIONS (BENZENE)
SMEAR SOIL SOURCE ZONE MASS CONCENTRATIONS (BENZENE)
* Area based on groundwater impact in source area for benzene above its GCL
** Sum of benzene concentrations in source area
TABLE 9
CONTAMINANT MASS REMOVAL (Benzene)
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
Initial Mass Estimate
Initial
Baseline
(1995)
Projected Mass Reduction %0
Soil Source Zone Mass (kg)NM
Smear Source Mass (kg)NM
Groundwater Zone Mass (kg)133.7877
Total Mass: Baseline/Milestone (kg)133.7877
2012 2015 2023 2023
Measured Mass
Soil Source Zone (kg)NM NM NM NM
Smear Source Zone (kg)NM NM NM NM
Groundwater Zone (kg)94.3578 9.0876 0.8191 0.5252
Removed Mass
Excavated From Soil/Smear (kg)NM NM NM NM
Extracted as Vapor/Gas (kg)NM NM NM NM
Extracted as Liquid (kg)39.4299 124.7001 132.9686 133.2625
Total Mass Removed (kg)39.4299 124.7001 132.9686 133.2625
Revised Total Mass (kg)94.3578 9.0876 0.8191 0.5252
Estimated Reduction Rate 29.472%93.207%99.388%99.607%
Reference Milestone (Label)Baseline Baseline Baseline Baseline
Reference Milestone (Value)133.7877 133.7877 133.7877 133.7877
Reduction Progress vs Milestone NM NM NM NM
Evaluation of Change in Benzene Contaminant Mass
Milestone Sampling Measurement Event Dates

FIGURES
MW-10MW-4MW-7MW-2MW-8MW-5MW-9MW-6CARTHAGE STREETCARTER STREET
FORMERHARDY GULFTW-3TW-2MW-3MW-1TW-1
MW-10MW-4MW-7MW-2MW-8MW-5MW-9MW-6CARTHAGE STREETCARTER STREET
FORMERHARDY GULFTW-3TW-2MW-3MW-1TW-17,3605,0004,7703,50031.4
MW-10MW-4MW-7MW-2MW-8MW-5MW-9MW-6CARTHAGE STREETCARTER STREET
FORMERHARDY GULFTW-3TW-2MW-3MW-1TW-1586400249297324
0
5
10
15
20
25
30
35
0
5000
10000
15000
20000
25000
30000
Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
MW-1: Dissolved Benzene Concentrations through Time versus Depth to Water
Benzene Depth to Water
FIGURE 6
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
0
5
10
15
20
25
30
35
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
MW-3: Dissolved Benzene Concentrations through Time versus Depth to Water
Benzene Depth to Water
FIGURE 7
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
0
5
10
15
20
25
30
35
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
TW-1: Dissolved Benzene Concentrations through Time versus Depth to Water
Benzene Depth to Water

APPENDIX A

HISTORICAL SOIL ANALYTICAL DATA
AND
SOIL SAMPLE LOCATION MAPS

Table 3
Soil Analytical Data
Former Hardy Gulf
484 Carthage Street
Cameron, Moore County, North Carolina
ATC Project No. 045.40675.1002
Sample ID Date Collected
Sample
Depth (ft.)
S-1A 3/20/2013 10 <0.23 <0.23 0.017 <0.0067 <0.0067 0.011 0.028 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <4 <18.3 <20 <14.3
S-1B 3/20/2013 20 <0.24 <0.24 0.63 <0.0063 0.098 0.45 1.178 <0.0063 <0.0063 0.068 0.035 0.021 0.0064 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 0.012 <3.7 <18.9 <21 <15.2
S-1C 3/20/2013 30 <0.21 <0.21 0.015 <0.0057 <0.0057 <0.0057 0.015 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <3.7 <16.9 <19 <13.2
S-2A 3/20/2013 10 <0.21 <0.21 <0.0061 <0.0061 <0.0061 <0.0061 <0.0244 <0.0061 <0.0061 <0.0061 <0.0061 <0.0061 <0.0061 <0.0061 <0.0061 <0.0061 <0.0061 <0.0061 <0.0061 <0.0061 <3.7 <17 <18 <13.2
S-2B 3/20/2013 20 <0.22 <0.22 <0.0062 <0.0062 <0.0062 <0.0062 <0.0248 <0.0062 <0.0062 <0.0062 <0.0062 <0.0062 <0.0062 0.007 0.051 0.007 0.0097 <0.0062 <0.0062 <0.0062 <4.3 <18.7 <20 <14.4
S-2C 3/20/2013 30 <0.23 <0.23 <0.0067 <0.0067 <0.0067 <0.00667 <0.02677 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <3.8 <18.1 <20 <14.3
S-3A 3/20/2013 10 <0.25 <0.25 0.013 0.058 <0.008 0.036 0.107 <0.008 <0.008 <0.008 <0.008 <0.008 <0.008 <0.008 <0.008 <0.008 <0.008 <0.008 <0.008 <0.008 <4.5 <21 <22 <16.5
S-3B 3/20/2013 20 7 7.5 100 1,400 430 2,480 4,410 <40 150 990 320 <40 48 <40 <40 <40 <40 99 <40 180 7,900 9,900 <21 2,665
S-3C 3/20/2013 30 1 1.1 39 180 71 275 565 <1.7 26 120 52 2.7 8.3 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 <1.7 3,600 2,600 <22 700
S-4A 3/20/2013 10 <0.25 <0.25 <0.0078 <0.0078 <0.0078 <0.0078 <0.0312 <0.0078 <0.0078 <0.0078 <0.0078 <0.0078 <0.0078 <0.0078 <0.0078 <0.0078 <0.0078 <0.0078 <0.0078 <0.0078 <4.8 <21.4 <22 <16.6
S-4B 3/20/2013 20 <0.24 <0.24 <1.4 3.2 9.7 57 69.9 <1.4 3.2 65 26 <1.4 3.2 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 13 260 320 <21 110
S-4C 3/20/2013 30 <0.23 <0.23 0.74 <0.33 1.3 7 9.04 <0.33 0.68 2.8 0.89 <0.33 <0.33 <0.33 <0.33 <0.33 <0.33 <0.33 <0.33 0.5 39 36 <20 10
S-5A 3/21/2013 10 <0.25 <0.25 0.024 0.018 <0.0072 0.012 0.054 <0.0072 <0.0072 <0.0072 <0.0072 <0.0072 <0.0072 <0.0072 <0.0072 <0.0072 <0.0072 <0.0072 <0.0072 <0.0072 <4.5 <20 <22 <15.5
S-5B 3/21/2013 20 1.90 2.10 33 150 95 256 534 <1.2 29 180 79 <1.2 13 <1.2 3.1 <1.2 <1.2 <1.2 <1.2 47 1,600 1,744 <21 565
S-5C 3/21/2013 30 0.90 0.88 5.7 26 11 60 102.7 <0.35 4.1 27 8.5 0.51 1.3 <0.35 <0.35 <0.35 0.48 <0.35 0.48 4.6 420 585 <20 340
S-6A 3/21/2013 10 <0.24 <0.24 <0.0063 <0.0063 <0.0063 <0.0063 <0.0252 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <4.5 <20 <21 <15.5
S-6B 3/21/2013 20 <0.23 <0.23 <0.0065 <0.0065 <0.0065 <0.0065 <0.026 <0.0065 <0.0065 <0.0065 <0.0065 <0.0065 <0.0065 <0.0065 <0.0065 <0.0065 <0.0065 <0.0065 <0.0065 <0.0065 <3.3 <17.4 <20 <14.1
S-6C 3/21/2013 30 <0.22 <0.22 0.026 <0.0058 0.021 0.062 0.109 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 0.011 <3.3 <17.3 <19 <14.1
S-7A 3/21/2013 10 <0.22 <0.22 <0.0067 <0.0067 <0.0067 <0.0067 <0.0268 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <0.0067 <4.3 <18.7 <20 <14.4
S-7B 3/21/2013 20 <0.23 <0.23 <0.0057 <0.0057 <0.0057 <0.0057 <0.0228 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <0.0057 <3.3 <17.4 <20 <14.1
S-7C 3/21/2013 30 <0.22 <0.22 <0.0056 <0.0056 <0.0056 <0.0056 <0.0224 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <3.3 <17.3 <19 <14.1
S-8A 3/21/2013 10 <0.22 <0.22 <0.0063 <0.0063 <0.0063 <0.0063 <0.0252 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <0.0063 <3.4 <17.6 <19 <14.1
S-8B 3/21/2013 20 <0.23 <0.23 <0.0056 <0.0056 <0.0056 <0.0056 <0.0224 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <0.0056 <3.6 <17.8 <20 <14.2
S-8C 3/21/2013 30 <0.23 <0.23 <0.0058 <0.0058 <0.0058 <0.0058 <0.0232 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <0.0058 <3.6 <18.8 <20 <15.2
63 313 18 1,200 1,560 3,129 NE 350 313 782 782 7 1,564 10 NE 5 NE 626 3,128 626 939 1,500 31,000 469
1,635 8176 164 32,000 40,000 81,760 NE 3,100 8176 20,440 20,440 63 40,880 92 NE 57 NE 16,350 81,760 16,350 24,528 40,000 810,000 12,264
3.6 0.16 0.0056 4.3 4.9 4.6 NE 0.091 0.16 8.5 8.3 0.0019 1.7 0.003 NE 0.001 NE 4.3 1.5 1.7 68 540 Conidered
Immobile 31
Notes:
1. "<" or ND = Not detected at or above the laboratory detection limit.
2. Concentrations are repored in milligrams per kilogram (mg/kg) = parts per million
3. Concentrations in bold print equal or exceed the Residential MSCC
4. NE = Not Established.
5. MTBE = Methyl Tertiary Butyl Ether.
6. BTEX = Benzene, Toluene, Ethylbenzene, Total Xylenes
7. MSCC = Maximum Soil Contaminant Concentration
MADEP Methods
1,2-DichloroethaneIsopropylbenzenen-PropylbenzeneC5-C8 AliphaticsC9-C18 AliphaticsC9-C-22 AromaticsC19-C36 AliphaticsStandard Method 8260B
Naphthalenecis-1,3-DichloropropeneCarbon Tetrachloride1,1-Dichloropropenen-Butylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneSoil-to-Groundwater MSCC (mg/kg)Styrene1,2,3-TrichloropropaneContaminant of Concern
TolueneEthylbenzeneNaphthalene2-MethylnaphthaleneAnalytical Method
Residential MSCC (mg/kg)
Industrial/Commercial MSCC (mg/kg)Total BTEXMTBEBenzeneTotal XylenesStandard Method 8270D

APPENDIX B

GEOLOGIC TRANSECT AND
CROSS-SECTION MAPS

APPENDIX C

HISTORICAL GROUNDWATER
ELEVATION CONTOUR MAPS

APPENDIX D

LABORATORY ANALYTICAL RESULTS
10/12/23
Technical Report for
Atlas
Hardy Gulf 484 Carthage St, Cameron, NC
HARDYTA41
SGS Job Number: LA94330
Sampling Date: 10/02/23
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 unless noted
in the narrative, comments or footnotes.
Client Service contact: Rebecca Hebert 337-237-4775
Kesavalu Bagawandoss
General Manager
Scott, LA 10/12/23
e-Hardcopy 2.0
Automated Report
29
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:
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1 of 29
LA94330
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................6
3.1: LA94330-1: MW-1 .......................................................................................................7
3.2: LA94330-2: MW-3 .......................................................................................................10
3.3: LA94330-3: TW-1 ........................................................................................................13
3.4: LA94330-4: TW-2 ........................................................................................................16
Section 4: Misc. Forms ............................................................................................................19
4.1: Chain of Custody ...........................................................................................................20
Section 5: MS Volatiles - QC Data Summaries .....................................................................23
5.1: Method Blank Summary ................................................................................................24
5.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................27 123452 of 29
LA94330
SGS North America Inc.
Sample Summary
Atlas
Job No:LA94330
Hardy Gulf 484 Carthage St, Cameron, NC
Project No: HARDYTA41
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
LA94330-1 10/02/23 14:23 LC 10/04/23 AQ Ground Water MW-1
LA94330-2 10/02/23 11:10 LC 10/04/23 AQ Ground Water MW-3
LA94330-3 10/02/23 13:58 LC 10/04/23 AQ Ground Water TW-1
LA94330-4 10/02/23 12:23 LC 10/04/23 AQ Ground Water TW-2
3 of 29
LA943301
Summary of Hits Page 1 of 2
Job Number:LA94330
Account:Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Collected:10/02/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA94330-1 MW-1
Benzene 7360 50 27 ug/l SM 6200B
1,2-Dichloroethane 249 20 12 ug/l SM 6200B
1,2-Dichloropropane 23.3 J 30 13 ug/l SM 6200B
Di-Isopropyl Ether 23.8 J 50 7.3 ug/l SM 6200B
Ethylbenzene 2390 50 20 ug/l SM 6200B
Isopropylbenzene 103 50 13 ug/l SM 6200B
p-Isopropyltoluene 15.7 J 50 13 ug/l SM 6200B
Naphthalene 630 50 10 ug/l SM 6200B
n-Propylbenzene 333 50 22 ug/l SM 6200B
Toluene 3250 50 29 ug/l SM 6200B
1,2,3-Trichloropropane 63.0 50 2.3 ug/l SM 6200B
1,2,4-Trimethylbenzene 3280 50 15 ug/l SM 6200B
1,3,5-Trimethylbenzene 879 50 16 ug/l SM 6200B
m,p-Xylene 11900 100 34 ug/l SM 6200B
o-Xylene 4860 50 15 ug/l SM 6200B
Xylene (total)16800 50 16 ug/l SM 6200B
LA94330-2 MW-3
Benzene 4770 25 14 ug/l SM 6200B
1,2-Dichloroethane 297 10 6.1 ug/l SM 6200B
Di-Isopropyl Ether 23.3 J 25 3.7 ug/l SM 6200B
Ethylbenzene 2280 25 10 ug/l SM 6200B
Isopropylbenzene 96.1 25 6.6 ug/l SM 6200B
p-Isopropyltoluene 8.7 J 25 6.5 ug/l SM 6200B
Naphthalene 525 25 5.0 ug/l SM 6200B
n-Propylbenzene 259 25 11 ug/l SM 6200B
Toluene 184 25 15 ug/l SM 6200B
1,2,3-Trichloropropane 34.7 25 1.1 ug/l SM 6200B
1,2,4-Trimethylbenzene 1910 25 7.3 ug/l SM 6200B
1,3,5-Trimethylbenzene 500 25 8.1 ug/l SM 6200B
m,p-Xylene 7280 50 17 ug/l SM 6200B
o-Xylene 1590 25 7.4 ug/l SM 6200B
Xylene (total)8870 25 8.1 ug/l SM 6200B
LA94330-3 TW-1
Benzene 3500 25 14 ug/l SM 6200B
1,2-Dichloroethane 586 10 6.1 ug/l SM 6200B
1,2-Dichloropropane 15.0 15 6.3 ug/l SM 6200B
Di-Isopropyl Ether 48.4 25 3.7 ug/l SM 6200B
Ethylbenzene 517 25 10 ug/l SM 6200B
Isopropylbenzene 54.7 25 6.6 ug/l SM 6200B
4 of 29
LA943302
Summary of Hits Page 2 of 2
Job Number:LA94330
Account:Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Collected:10/02/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
Methyl Tert Butyl Ether 310 25 3.4 ug/l SM 6200B
Naphthalene 80.5 25 5.0 ug/l SM 6200B
n-Propylbenzene 49.5 25 11 ug/l SM 6200B
Toluene 87.2 25 15 ug/l SM 6200B
1,2,4-Trimethylbenzene 116 25 7.3 ug/l SM 6200B
1,3,5-Trimethylbenzene 45.4 25 8.1 ug/l SM 6200B
m,p-Xylene 316 50 17 ug/l SM 6200B
o-Xylene 14.9 J 25 7.4 ug/l SM 6200B
Xylene (total)331 25 8.1 ug/l SM 6200B
LA94330-4 TW-2
Benzene a 31.4 25 14 ug/l SM 6200B
1,2-Dichloroethane a 324 10 6.1 ug/l SM 6200B
Di-Isopropyl Ether a 21.7 J 25 3.7 ug/l SM 6200B
Methylene Chloride a 4.8 J 25 4.0 ug/l SM 6200B
Methyl Tert Butyl Ether a 121 25 3.4 ug/l SM 6200B
Xylene (total) a 11.4 J 25 8.1 ug/l SM 6200B
(a) Dilution required due to high concentration of non-target analytes.
5 of 29
LA943302
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
6 of 29
LA943303
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-1
Lab Sample ID:LA94330-1 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0149083.D 100 10/11/23 18:08 MB n/a n/a V2K4215
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 1000 120 ug/l
71-43-2 Benzene 7360 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-chloropropan a 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 249 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 23.3 30 13 ug/l J
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
7 of 29
LA9433033.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-1
Lab Sample ID:LA94330-1 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, 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 23.8 50 7.3 ug/l J
64-17-5 Ethyl Alcohol ND 5000 840 ug/l
100-41-4 Ethylbenzene 2390 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 103 50 13 ug/l
99-87-6 p-Isopropyltoluene 15.7 50 13 ug/l J
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 630 50 10 ug/l
103-65-1 n-Propylbenzene 333 50 22 ug/l
100-42-5 Styrene ND 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 3250 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 63.0 50 2.3 ug/l
95-63-6 1,2,4-Trimethylbenzene 3280 50 15 ug/l
108-67-8 1,3,5-Trimethylbenzene 879 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 11900 100 34 ug/l
95-47-6 o-Xylene 4860 50 15 ug/l
1330-20-7 Xylene (total)16800 50 16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 108%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
8 of 29
LA9433033.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-1
Lab Sample ID:LA94330-1 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 104%70-130%
460-00-4 4-Bromofluorobenzene 99%70-130%
(a) Provisional certification.
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
9 of 29
LA9433033.1
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-3
Lab Sample ID:LA94330-2 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0149084.D 50 10/11/23 18:36 MB n/a n/a V2K4215
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 4770 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-chloropropan a 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 297 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
10 of 29
LA9433033.2
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-3
Lab Sample ID:LA94330-2 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, 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 23.3 25 3.7 ug/l J
64-17-5 Ethyl Alcohol ND 2500 420 ug/l
100-41-4 Ethylbenzene 2280 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 96.1 25 6.6 ug/l
99-87-6 p-Isopropyltoluene 8.7 25 6.5 ug/l J
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 525 25 5.0 ug/l
103-65-1 n-Propylbenzene 259 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 184 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 34.7 25 1.1 ug/l
95-63-6 1,2,4-Trimethylbenzene 1910 25 7.3 ug/l
108-67-8 1,3,5-Trimethylbenzene 500 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 7280 50 17 ug/l
95-47-6 o-Xylene 1590 25 7.4 ug/l
1330-20-7 Xylene (total)8870 25 8.1 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
11 of 29
LA9433033.2
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-3
Lab Sample ID:LA94330-2 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, 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 100%70-130%
(a) Provisional certification.
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 29
LA9433033.2
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:TW-1
Lab Sample ID:LA94330-3 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0149085.D 50 10/11/23 19:04 MB n/a n/a V2K4215
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 3500 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-chloropropan a 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 586 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 15.0 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
13 of 29
LA9433033.3
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:TW-1
Lab Sample ID:LA94330-3 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, 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 48.4 25 3.7 ug/l
64-17-5 Ethyl Alcohol ND 2500 420 ug/l
100-41-4 Ethylbenzene 517 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 54.7 25 6.6 ug/l
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 310 25 3.4 ug/l
91-20-3 Naphthalene 80.5 25 5.0 ug/l
103-65-1 n-Propylbenzene 49.5 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 87.2 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 116 25 7.3 ug/l
108-67-8 1,3,5-Trimethylbenzene 45.4 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 316 50 17 ug/l
95-47-6 o-Xylene 14.9 25 7.4 ug/l J
1330-20-7 Xylene (total)331 25 8.1 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 107%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
14 of 29
LA9433033.3
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:TW-1
Lab Sample ID:LA94330-3 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 105%70-130%
460-00-4 4-Bromofluorobenzene 100%70-130%
(a) Provisional certification.
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 29
LA9433033.3
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:TW-2
Lab Sample ID:LA94330-4 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a 2K0149086.D 50 10/11/23 19:32 MB n/a n/a V2K4215
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 31.4 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-chloropropan b 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 324 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
16 of 29
LA9433033.4
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:TW-2
Lab Sample ID:LA94330-4 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, 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 21.7 25 3.7 ug/l J
64-17-5 Ethyl Alcohol ND 2500 420 ug/l
100-41-4 Ethylbenzene ND 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 ND 25 6.6 ug/l
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 4.8 25 4.0 ug/l J
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 121 25 3.4 ug/l
91-20-3 Naphthalene ND 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 ND 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 ND 25 7.3 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 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 ND 50 17 ug/l
95-47-6 o-Xylene ND 25 7.4 ug/l
1330-20-7 Xylene (total)11.4 25 8.1 ug/l J
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 117%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
17 of 29
LA9433033.4
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:TW-2
Lab Sample ID:LA94330-4 Date Sampled:10/02/23
Matrix:AQ - Ground Water Date Received:10/04/23
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, 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 100%70-130%
(a) Dilution required due to high concentration of non-target analytes.
(b) Provisional certification.
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 29
LA9433033.4
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 4
19 of 29
LA943304
trI
CHAIN OF CUSTODY
SGS North America tnc. - Scott
500 Ambassador Caffery parkway, Scott, LA 705s3rEL 337 237.477s FAX] 337.237 7838
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LA94330: Chain of Custody
Page 1 of 3
20 of 29
LA9433044.1
6lt? J co grrtt= BA=irr! =6rfll= =at6:eE z>.=1r.r =>aE _ED,cn = o.1E =3 l_t1or,,I;sIBtrliFe,15tt..,e'C'C.,cxtcxtlCD=t-toa-ld.1rn-t=G'-.f,axca"l=TI-lE:l=-Fie-:.ttoCLmxe,IGeF C'IatE'no----__-_---==-faIt1II1IILA94330: Chain of Custody
Page 2 of 3
21 of 29
LA9433044.1
Job Number:la94330 Client:ATC
Date / Time Received:10/4/2023 9:30:00 AM Delivery Method:FEDEX
Project:HARDY GULF
4. No. Coolers:1
Airbill #'s:7043 0338 7881
Cooler Security
1. Custody Seals Present:
Y or N
2. Custody Seals Intact:
3. COC Present:
4. Smpl Dates/Time OK
2. Cooler temp verification:
Cooler Temperature Y or N
1. Temp criteria achieved:
3. Cooler media:Ice (direct contact)
Quality Control Preservatio 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 (Raw Measured) °C:
Cooler Temps (Corrected) °C:
Cooler 1: (1.4);
Cooler 1: (1.4);
SM089-03Rev. Date 12/7/17
SGS Sample Receipt Summary
Test Strip Lot #s:pH 1-12:pH 12+:Other: (Specify)
LA94330: Chain of Custody
Page 3 of 3
22 of 29
LA9433044.1
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
23 of 29
LA943305
Method Blank Summary Page 1 of 3
Job Number:LA94330
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4215-MB1 2K0149075.D 1 10/11/23 MB n/a n/a V2K4215
The QC reported here applies to the following samples:Method: SM 6200B
LA94330-1, LA94330-2, LA94330-3, LA94330-4
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
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
24 of 29
LA9433055.1.1
Method Blank Summary Page 2 of 3
Job Number:LA94330
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4215-MB1 2K0149075.D 1 10/11/23 MB n/a n/a V2K4215
The QC reported here applies to the following samples:Method: SM 6200B
LA94330-1, LA94330-2, LA94330-3, LA94330-4
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
25 of 29
LA9433055.1.1
Method Blank Summary Page 3 of 3
Job Number:LA94330
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4215-MB1 2K0149075.D 1 10/11/23 MB n/a n/a V2K4215
The QC reported here applies to the following samples:Method: SM 6200B
LA94330-1, LA94330-2, LA94330-3, LA94330-4
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 109%70-130%
2037-26-5 Toluene-D8 102%70-130%
460-00-4 4-Bromofluorobenzene 97%70-130%
26 of 29
LA9433055.1.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA94330
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4215-BS1 2K0149072.D 1 10/11/23 MB n/a n/a V2K4215
V2K4215-BSD1 2K0149073.D 1 10/11/23 MB n/a n/a V2K4215
The QC reported here applies to the following samples:Method: SM 6200B
LA94330-1, LA94330-2, LA94330-3, LA94330-4
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 56.5 113 53.9 108 5 70-130/30
71-43-2 Benzene 20 19.4 97 19.4 97 0 70-130/30
108-86-1 Bromobenzene 20 16.7 84 16.2 81 3 70-130/30
74-97-5 Bromochloromethane 20 19.6 98 19.3 97 2 70-130/30
75-27-4 Bromodichloromethane 20 21.7 109 21.5 108 1 70-130/30
75-25-2 Bromoform 20 22.9 115 21.8 109 5 70-130/30
104-51-8 n-Butylbenzene 20 20.6 103 21.3 107 3 70-130/30
135-98-8 sec-Butylbenzene 20 19.1 96 19.4 97 2 70-130/30
98-06-6 tert-Butylbenzene 20 19.4 97 20.1 101 4 70-130/30
56-23-5 Carbon Tetrachloride 20 23.0 115 22.1 111 4 70-130/30
108-90-7 Chlorobenzene 20 19.3 97 18.6 93 4 70-130/30
75-00-3 Chloroethane 20 25.7 129 26.1 131 2 60-140/30
67-66-3 Chloroform 20 21.0 105 19.6 98 7 70-130/30
95-49-8 o-Chlorotoluene 20 19.5 98 19.8 99 2 70-130/30
106-43-4 p-Chlorotoluene 20 19.0 95 19.4 97 2 70-130/30
124-48-1 Dibromochloromethane 20 23.4 117 22.6 113 3 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 19.4 97 19.4 97 0 70-130/30
106-93-4 1,2-Dibromoethane 20 18.3 92 18.0 90 2 70-130/30
75-71-8 Dichlorodifluoromethane 20 24.8 124 24.7 124 0 60-140/30
541-73-1 m-Dichlorobenzene 20 19.2 96 19.3 97 1 70-130/30
95-50-1 o-Dichlorobenzene 20 19.0 95 19.1 96 1 70-130/30
106-46-7 p-Dichlorobenzene 20 19.0 95 19.6 98 3 70-130/30
75-34-3 1,1-Dichloroethane 20 20.1 101 19.4 97 4 70-130/30
107-06-2 1,2-Dichloroethane 20 18.5 93 18.6 93 1 70-130/30
75-35-4 1,1-Dichloroethylene 20 21.0 105 20.2 101 4 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 19.0 95 18.6 93 2 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 19.6 98 19.0 95 3 70-130/30
78-87-5 1,2-Dichloropropane 20 19.4 97 19.4 97 0 70-130/30
142-28-9 1,3-Dichloropropane 20 18.5 93 17.7 89 4 70-130/30
594-20-7 2,2-Dichloropropane 20 20.8 104 21.3 107 2 70-130/30
563-58-6 1,1-Dichloropropene 20 20.8 104 20.2 101 3 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 22.7 114 22.5 113 1 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 22.8 114 22.0 110 4 70-130/30
108-20-3 Di-Isopropyl Ether 20 20.9 105 20.2 101 3 70-130/30
64-17-5 Ethyl Alcohol 400 481 120 384 96 22 70-130/30
100-41-4 Ethylbenzene 20 18.6 93 17.9 90 4 70-130/30
* = Outside of Control Limits.
27 of 29
LA9433055.2.1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA94330
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4215-BS1 2K0149072.D 1 10/11/23 MB n/a n/a V2K4215
V2K4215-BSD1 2K0149073.D 1 10/11/23 MB n/a n/a V2K4215
The QC reported here applies to the following samples:Method: SM 6200B
LA94330-1, LA94330-2, LA94330-3, LA94330-4
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
591-78-6 2-Hexanone 50 44.6 89 43.5 87 2 70-130/30
87-68-3 Hexachlorobutadiene 20 18.2 91 18.6 93 2 70-130/30
98-82-8 Isopropylbenzene 20 17.7 89 17.2 86 3 70-130/30
99-87-6 p-Isopropyltoluene 20 19.6 98 19.9 100 2 70-130/30
74-83-9 Methyl Bromide 20 23.2 116 23.4 117 1 60-140/30
74-87-3 Methyl Chloride 20 22.8 114 22.5 113 1 60-140/30
74-95-3 Methylene Bromide 20 18.9 95 18.2 91 4 70-130/30
75-09-2 Methylene Chloride 20 19.8 99 19.2 96 3 70-130/30
78-93-3 Methyl Ethyl Ketone 50 47.2 94 46.1 92 2 70-130/30
108-10-1 4-Methyl-2-pentanone 50 46.0 92 46.3 93 1 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 19.6 98 19.2 96 2 70-130/30
91-20-3 Naphthalene 20 20.5 103 20.6 103 0 70-130/30
103-65-1 n-Propylbenzene 20 19.4 97 19.7 99 2 70-130/30
100-42-5 Styrene 20 20.1 101 19.3 97 4 70-130/30
630-20-6 1,1,1,2-Tetrachloroethane 20 20.2 101 19.7 99 3 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 19.8 99 19.9 100 1 70-130/30
127-18-4 Tetrachloroethylene 20 16.8 84 14.9 75 12 70-130/30
108-88-3 Toluene 20 18.8 94 18.0 90 4 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 19.1 96 18.8 94 2 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 18.7 94 18.8 94 1 70-130/30
71-55-6 1,1,1-Trichloroethane 20 20.2 101 19.8 99 2 70-130/30
79-00-5 1,1,2-Trichloroethane 20 18.9 95 18.2 91 4 70-130/30
79-01-6 Trichloroethylene 20 19.9 100 20.5 103 3 70-130/30
75-69-4 Trichlorofluoromethane 20 22.0 110 21.8 109 1 60-140/30
96-18-4 1,2,3-Trichloropropane 20 18.5 93 17.8 89 4 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 19.6 98 19.9 100 2 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 18.8 94 18.9 95 1 70-130/30
108-05-4 Vinyl Acetate 20 22.3 112 22.4 112 0 70-130/30
75-01-4 Vinyl Chloride 20 21.9 110 21.5 108 2 60-140/30
m,p-Xylene 40 38.6 97 37.0 93 4 70-130/30
95-47-6 o-Xylene 20 19.0 95 18.1 91 5 70-130/30
1330-20-7 Xylene (total)60 57.6 96 55.1 92 4 70-130/30
* = Outside of Control Limits.
28 of 29
LA9433055.2.1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA94330
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4215-BS1 2K0149072.D 1 10/11/23 MB n/a n/a V2K4215
V2K4215-BSD1 2K0149073.D 1 10/11/23 MB n/a n/a V2K4215
The QC reported here applies to the following samples:Method: SM 6200B
LA94330-1, LA94330-2, LA94330-3, LA94330-4
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 106%103%70-130%
2037-26-5 Toluene-D8 101%102%70-130%
460-00-4 4-Bromofluorobenzene 99%94%70-130%
* = Outside of Control Limits.
29 of 29
LA9433055.2.1

APPENDIX E

CONTAMINANT MASS VERSUS TIME
0
20
40
60
80
100
120
140
160
1995 2012 2015 2023 2023
Contaminant Mass versus Time
Benzene Mass