FA-743_13349_CA_MRP_20230519

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

May 19, 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
May 19, 2023

Site Identification

1. Site Identification
Date of Report: May 19, 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): April 27, 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 Other Dissolved Concentrations of Concern
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 May 19, 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 (April 2023), the dissolved contaminant
mass at the site was estimated to cover an area approximately 400 ft2 resulting in a calculated
dissolved benzene mass of 0.8191 kg. To date, the dissolved benzene mass has decreased at the

Groundwater Monitoring Report May 19, 2023
NCDEQ Incident No.13349

Page 2
site by approximately 99.388%. Geologic transect and geologic cross-sections are included in
Appendix B.

Based on the current groundwater analytical results, ATC recommends annual groundwater
sampling of select monitoring wells. The next groundwater sampling event will be conducted
during April 2024.

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

Groundwater Monitoring Report May 19, 2023
NCDEQ Incident No.13349

Page 3
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 April 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
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 Monitoring Report May 19, 2023
NCDEQ Incident No.13349

Page 4
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 April 27, 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
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.

Groundwater Monitoring Report May 19, 2023
NCDEQ Incident No.13349

Page 5

4.3 Groundwater Analytical Results
On April 27, 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 April 2023 sampling event detected dissolved target
compound concentrations above established Gross Contaminant Levels (GCLs) in the
groundwater samples collected from monitoring wells MW-3 and TW-1. Dissolved benzene
isoconcentration contours are provided on Figure 3. Other dissolved contaminants of concern
are provided on 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
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

Groundwater Monitoring Report May 19, 2023
NCDEQ Incident No.13349

Page 6
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 (April 2023), the dissolved contaminant
mass at the site was estimated to cover an area approximately 400 ft2 resulting in a calculated
dissolved benzene mass of 0.8191 kg. To date, the dissolved benzene mass has decreased at the
site by approximately 99.388%. 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 April 2024.

6.0 CONCLUSIONS
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:

Groundwater Monitoring Report May 19, 2023
NCDEQ Incident No.13349

Page 7
• Depth to groundwater measurements ranged from 16.96 feet to 23.55 feet below ground
April 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 April 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 April 2023 sampling event detected dissolved target
compound concentrations above GCLs in the groundwater samples collected from
monitoring well MW-3 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 400 ft2 resulting in a calculated dissolved
benzene mass of 0.8191 kg. To date, the dissolved benzene mass has decreased at the site by
approximately 99.388%. 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 April 2024.

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
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
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
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
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
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
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
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
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
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
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
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
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
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 4/27/2023 4,420 1,940 2,570 20,500 29,430 <50 <50 1,370 <1,000 <50 44.5J <2,500 <2,500 <1,000 <50 6,160 1,620 148 <30 164 542
MW-3 4/27/2023 5,740 269 3,190 14,400 23,599 140 33.0J 1,070 <1,000 43.2J 33.6J <2,500 26,200 3,010 69.3 3,570 1,060 448 <30 192 516
TW-1 4/27/2023 2,970 84.5 426 281 3,761.5 310 46.7 94.4 71.8J <25 <25 82.1J 45,800 6,780 <25 108 44.1 650 14.8J 49.5 40.6
TW-2 4/27/2023 <25 <25 <25 <25 <100 101 19.1J <25 <500 <25 <25 <1,300 37,800 <500 <25 <25 <25 323 <15 <25 <25
5,000 260,000 84,500 85,500 NE 20,000 70,000 6,000 6,000,000 8,500 11,700 4,000,000 40,000 10,000 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
Is
o
p
r
o
p
y
l
b
e
n
z
e
n
e
se
c
-
B
u
t
y
l
b
e
n
z
e
n
e
n-
P
r
o
p
y
l
b
e
n
z
e
n
e
1,3
,
5
-
T
r
i
m
e
t
h
y
l
b
e
n
z
e
n
e
1,2
-
D
i
c
h
l
o
r
o
e
t
h
a
n
e
p-
I
s
o
p
r
o
p
y
l
t
o
l
u
e
n
e
1,2
,
3
-
T
r
i
c
h
l
o
r
o
p
r
o
p
a
n
e
Te
r
t
-
A
m
y
l

A
l
c
o
h
o
l
Te
r
t
-
B
u
t
y
l

A
l
c
o
h
o
l
To
l
u
e
n
e
Is
o
p
r
o
p
y
l

e
t
h
e
r
Na
p
h
t
h
a
l
e
n
e
Ac
e
t
o
n
e
Me
t
h
y
l

E
t
h
y
l

K
e
t
o
n
e
1,2
,
4
-
T
r
i
m
e
t
h
y
l
b
e
n
z
e
n
e
GCL (mg/l)
MT
B
E
Et
h
y
l
b
e
n
z
e
n
e
To
t
a
l

X
y
l
e
n
e
s
To
t
a
l

B
T
E
X
EPA Method 6200B
1,2
-
D
i
c
h
l
o
r
o
p
r
o
p
a
n
e
Analytical Method
Contaminant of
Concern
Be
n
z
e
n
e
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
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
Na
p
h
t
h
a
l
e
n
e
0.19 feet Free Product
Et
h
y
l
b
e
n
z
e
n
e
MW-1
MW-2
Well Could Not Be Accessed - under water
Contaminant of Concern
Be
n
z
e
n
e
To
l
u
e
n
e
0.03 feet Free Product
To
t
a
l

X
y
l
e
n
e
s
MT
B
E
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 Na
p
h
t
h
a
l
e
n
e
0.19 feet Free Product
Et
h
y
l
b
e
n
z
e
n
e
MW-1
Contaminant of Concern
Be
n
z
e
n
e
To
l
u
e
n
e
To
t
a
l

X
y
l
e
n
e
s
MT
B
E
8/1/2012 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
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
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 Na
p
h
t
h
a
l
e
n
e
0.19 feet Free Product
Et
h
y
l
b
e
n
z
e
n
e
MW-1
Contaminant of Concern
Be
n
z
e
n
e
To
l
u
e
n
e
To
t
a
l

X
y
l
e
n
e
s
MT
B
E
8/1/2012
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
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
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
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 Na
p
h
t
h
a
l
e
n
e
0.19 feet Free Product
Et
h
y
l
b
e
n
z
e
n
e
MW-1
Contaminant of Concern
Be
n
z
e
n
e
To
l
u
e
n
e
To
t
a
l

X
y
l
e
n
e
s
MT
B
E
8/1/2012 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
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
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 Na
p
h
t
h
a
l
e
n
e
0.19 feet Free Product
Et
h
y
l
b
e
n
z
e
n
e
MW-1
Contaminant of Concern
Be
n
z
e
n
e
To
l
u
e
n
e
To
t
a
l

X
y
l
e
n
e
s
MT
B
E
8/1/2012 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
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
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 Na
p
h
t
h
a
l
e
n
e
0.19 feet Free Product
Et
h
y
l
b
e
n
z
e
n
e
MW-1
Contaminant of Concern
Be
n
z
e
n
e
To
l
u
e
n
e
To
t
a
l

X
y
l
e
n
e
s
MT
B
E
8/1/2012 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
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
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.
TW-3
TW-2
GCL (mg/l)
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
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
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
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
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
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
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
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
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
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 No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
MW-8
MW-9
MW-5
MW-7
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 - YSI Faulty
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
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
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
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
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements Taken
No Measurements - YSI Faulty
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 Taken
No Measurements - YSI Faulty
No Measurements Taken
No Measurements - YSI Faulty
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
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
Measured Mass
Soil Source Zone (kg)NM NM NM
Smear Source Zone (kg)NM NM NM
Groundwater Zone (kg)94.3578 9.0876 0.8191
Removed Mass
Excavated From Soil/Smear (kg)NM NM NM
Extracted as Vapor/Gas (kg)NM NM NM
Extracted as Liquid (kg)39.4299 124.7001 132.9686
Total Mass Removed (kg)39.4299 124.7001 132.9686
Revised Total Mass (kg)94.3578 9.0876 0.8191
Estimated Reduction Rate 29.472%93.207%99.388%
Reference Milestone (Label)Baseline Baseline Baseline
Reference Milestone (Value)133.7877 133.7877 133.7877
Reduction Progress vs Milestone NM NM NM
Evaluation of Change in Benzene Contaminant Mass
Milestone Sampling Measurement Event

FIGURES
MW-10
MW-4
MW-7
MW-2
MW-8
MW-5
MW-9
MW-6
CARTHAGE ST
R
E
E
T
CA
R
T
E
R

S
T
R
E
E
T
FORMER
HARDY GULF
TW-3
TW-2
MW-3MW-1
TW-1
MW-10
MW-4
MW-7
MW-2
MW-8
MW-5
MW-9
MW-6
CARTHAGE ST
R
E
E
T
CA
R
T
E
R

S
T
R
E
E
T
FORMER
HARDY GULF
TW-3
TW-2
MW-3MW-1
TW-1
5,740
5,000
MW-10
MW-4
MW-7
MW-2
MW-8
MW-5
MW-9
MW-6
CARTHAGE ST
R
E
E
T
CA
R
T
E
R

S
T
R
E
E
T
FORMER
HARDY GULF
TW-3
TW-2
MW-3MW-1
TW-1
FIGURE 5
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 13349
0
5
10
15
20
25
30
35
0
5000
10000
15000
20000
25000
30000
De
p
t
h

t
o

W
a
t
e
r

(
f
e
e
t
)
Di
s
s
o
l
v
e
d

B
e
n
z
e
n
e

C
o
n
c
e
n
t
r
a
t
i
o
n

(
u
g
/
L
)
Date
MW-1: Dissolved Benzene Concentrations through Time versus Depth to Water
Benzene Depth to Water
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NC
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
De
p
t
h

t
o

W
a
t
e
r

(
f
e
e
t
)
Di
s
s
o
l
v
e
d

B
e
n
z
e
n
e

C
o
n
c
e
n
t
r
a
t
i
o
n

(
u
g
/
L
)
Date
MW-3: Dissolved Benzene Concentrations through Time versus Depth to Water
Benzene Depth to Water
FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NC
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
De
p
t
h

t
o

W
a
t
e
r

(
f
e
e
t
)
Di
s
s
o
l
v
e
d

B
e
n
z
e
n
e

C
o
n
c
e
n
t
r
a
t
i
o
n

(
u
g
/
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
-
D
i
c
h
l
o
r
o
e
t
h
a
n
e
Is
o
p
r
o
p
y
l
b
e
n
z
e
n
e
n-
P
r
o
p
y
l
b
e
n
z
e
n
e
C5-C
8 A
l
i
p
h
a
t
i
c
s
C9-C
18
A
l
i
p
h
a
t
i
c
s
C9-C
-
22
A
r
o
m
a
t
i
c
s
C19
-C
36
A
l
i
p
h
a
t
i
c
s
Standard Method 8260B
Na
p
h
t
h
a
l
e
n
e
ci
s
-
1
,
3
-
Di
c
h
l
o
r
o
p
r
o
p
e
n
e
Ca
r
b
o
n

T
e
t
r
a
c
h
l
o
r
i
d
e
1,
1
-
D
i
c
h
l
o
r
o
p
r
o
p
e
n
e
n-
B
u
t
y
l
b
e
n
z
e
n
e
1,
2
,
4
-
Tr
i
m
e
t
h
y
l
b
e
n
z
e
n
e
1,
3
,
5
-
Tr
i
m
e
t
h
y
l
b
e
n
z
e
n
e
Soil-to-Groundwater MSCC (mg/kg)
St
y
r
e
n
e
1,
2
,
3
-
Tr
i
c
h
l
o
r
o
p
r
o
p
a
n
e
Contaminant of Concern
To
l
u
e
n
e
Et
h
y
l
b
e
n
z
e
n
e
Na
p
h
t
h
a
l
e
n
e
2-
M
e
t
h
y
l
n
a
p
h
t
h
a
l
e
n
e
Analytical Method
Residential MSCC (mg/kg)
Industrial/Commercial MSCC (mg/kg)
To
t
a
l

B
T
E
X
MT
B
E
Be
n
z
e
n
e
To
t
a
l

X
y
l
e
n
e
s
Standard Method 8270D

APPENDIX B

GEOLOGIC TRANSECT AND
CROSS-SECTION MAPS

APPENDIX C

HISTORICAL GROUNDWATER
ELEVATION CONTOUR MAPS

APPENDIX D

LABORATORY ANALYTICAL RESULTS
05/08/23
Technical Report for
Atlas
Hardy Gulf 484 Carthage St, Cameron, NC
HARDYTA40
SGS Job Number: LA90088
Sampling Date: 04/27/23
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.
Client Service contact: Rebecca Hebert 337-237-4775
Kesavalu Bagawandoss
General Manager
Scott, LA 05/08/23
e-Hardcopy 2.0
Automated Report
41
SGS is the sole authority for authorizing edits or modifications to this document.
Unauthorized modification of this report is strictly prohibited.
Review standard terms at: http://www.sgs.com/en/terms-and-conditions
The results set forth herein are provided by SGS North America Inc.
Please share your ideas about
how we can serve you better at:
[e-mail]
1 of 41
LA90088
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................6
3.1: LA90088-1: MW-1 .......................................................................................................7
3.2: LA90088-2: MW-3 .......................................................................................................10
3.3: LA90088-3: TW-1 ........................................................................................................13
3.4: LA90088-4: 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 ..............................................................30
5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................36
1
2
3
4
5
2 of 41
LA90088
SGS North America Inc.
Sample Summary
Atlas
Job No:LA90088
Hardy Gulf 484 Carthage St, Cameron, NC
Project No: HARDYTA40
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
LA90088-1 04/27/23 10:30 ADS 04/28/23 AQ Ground Water MW-1
LA90088-2 04/27/23 11:20 ADS 04/28/23 AQ Ground Water MW-3
LA90088-3 04/27/23 10:05 ADS 04/28/23 AQ Ground Water TW-1
LA90088-4 04/27/23 11:50 ADS 04/28/23 AQ Ground Water TW-2
3 of 41
LA90088
1
Summary of Hits Page 1 of 2
Job Number:LA90088
Account:Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Collected:04/27/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA90088-1 MW-1
Benzene 4420 50 27 ug/l SM 6200B
1,2-Dichloroethane 148 20 12 ug/l SM 6200B
Ethylbenzene 2570 50 20 ug/l SM 6200B
Isopropylbenzene 164 50 13 ug/l SM 6200B
p-Isopropyltoluene 44.5 J 50 13 ug/l SM 6200B
Naphthalene 1370 50 10 ug/l SM 6200B
n-Propylbenzene 542 50 22 ug/l SM 6200B
Toluene 1940 50 29 ug/l SM 6200B
1,2,4-Trimethylbenzene 6160 50 15 ug/l SM 6200B
1,3,5-Trimethylbenzene 1620 50 16 ug/l SM 6200B
m,p-Xylene 14900 100 34 ug/l SM 6200B
o-Xylene 5560 50 15 ug/l SM 6200B
Xylene (total)20500 50 16 ug/l SM 6200B
LA90088-2 MW-3
Benzene 5740 50 27 ug/l SM 6200B
sec-Butylbenzene 43.2 J 50 14 ug/l SM 6200B
1,2-Dichloroethane 448 20 12 ug/l SM 6200B
Di-Isopropyl Ether 33.0 J 50 7.3 ug/l SM 6200B
Ethylbenzene 3190 50 20 ug/l SM 6200B
Isopropylbenzene 192 50 13 ug/l SM 6200B
p-Isopropyltoluene 33.6 J 50 13 ug/l SM 6200B
Methyl Tert Butyl Ether 140 50 6.8 ug/l SM 6200B
Naphthalene 1070 50 10 ug/l SM 6200B
n-Propylbenzene 516 50 22 ug/l SM 6200B
Tert-Amyl Alcohol 26200 2500 77 ug/l SM 6200B
Tert-Butyl Alcohol 3010 1000 100 ug/l SM 6200B
Toluene 269 50 29 ug/l SM 6200B
1,2,3-Trichloropropane 69.3 50 2.3 ug/l SM 6200B
1,2,4-Trimethylbenzene 3570 50 15 ug/l SM 6200B
1,3,5-Trimethylbenzene 1060 50 16 ug/l SM 6200B
m,p-Xylene 12000 100 34 ug/l SM 6200B
o-Xylene 2450 50 15 ug/l SM 6200B
Xylene (total)14400 50 16 ug/l SM 6200B
LA90088-3 TW-1
Acetone 71.8 J 500 62 ug/l SM 6200B
Benzene 2970 25 14 ug/l SM 6200B
1,2-Dichloroethane 650 10 6.1 ug/l SM 6200B
1,2-Dichloropropane 14.8 J 15 6.3 ug/l SM 6200B
Di-Isopropyl Ether 46.7 25 3.7 ug/l SM 6200B
4 of 41
LA90088
2
Summary of Hits Page 2 of 2
Job Number:LA90088
Account:Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Collected:04/27/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
Ethylbenzene 426 25 10 ug/l SM 6200B
Isopropylbenzene 49.5 25 6.6 ug/l SM 6200B
Methyl Ethyl Ketone 82.1 J 1300 14 ug/l SM 6200B
Methyl Tert Butyl Ether 310 25 3.4 ug/l SM 6200B
Naphthalene 94.4 25 5.0 ug/l SM 6200B
n-Propylbenzene 40.6 25 11 ug/l SM 6200B
Tert-Amyl Alcohol 45800 2500 77 ug/l SM 6200B
Tert-Butyl Alcohol 6780 500 51 ug/l SM 6200B
Toluene 84.5 25 15 ug/l SM 6200B
1,2,4-Trimethylbenzene 108 25 7.3 ug/l SM 6200B
1,3,5-Trimethylbenzene 44.1 25 8.1 ug/l SM 6200B
m,p-Xylene 263 50 17 ug/l SM 6200B
o-Xylene 17.6 J 25 7.4 ug/l SM 6200B
Xylene (total)281 25 8.1 ug/l SM 6200B
LA90088-4 TW-2
1,2-Dichloroethane 323 10 6.1 ug/l SM 6200B
Di-Isopropyl Ether 19.1 J 25 3.7 ug/l SM 6200B
Methyl Tert Butyl Ether 101 25 3.4 ug/l SM 6200B
Tert-Amyl Alcohol 37800 1300 38 ug/l SM 6200B
5 of 41
LA90088
2
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
6 of 41
LA90088
3
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-1
Lab Sample ID:LA90088-1 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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 2K0146179.D 100 05/04/23 20:42 MB n/a n/a V2K4092
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 4420 50 27 ug/l
108-86-1 Bromobenzene ND 50 18 ug/l
74-97-5 Bromochloromethane ND 50 12 ug/l
75-27-4 Bromodichloromethane ND 50 18 ug/l
75-25-2 Bromoform ND 50 10 ug/l
104-51-8 n-Butylbenzene ND 50 9.2 ug/l
135-98-8 sec-Butylbenzene ND 50 14 ug/l
98-06-6 tert-Butylbenzene ND 50 16 ug/l
56-23-5 Carbon Tetrachloride ND 20 9.2 ug/l
108-90-7 Chlorobenzene ND 50 16 ug/l
75-00-3 Chloroethane ND 50 5.5 ug/l
67-66-3 Chloroform ND 50 9.4 ug/l
95-49-8 o-Chlorotoluene ND 50 16 ug/l
106-43-4 p-Chlorotoluene ND 50 20 ug/l
124-48-1 Dibromochloromethane ND 20 7.5 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 50 13 ug/l
106-93-4 1,2-Dibromoethane ND 50 24 ug/l
75-71-8 Dichlorodifluoromethane ND 50 12 ug/l
541-73-1 m-Dichlorobenzene ND 50 6.3 ug/l
95-50-1 o-Dichlorobenzene ND 50 20 ug/l
106-46-7 p-Dichlorobenzene ND 50 22 ug/l
75-34-3 1,1-Dichloroethane ND 50 10 ug/l
107-06-2 1,2-Dichloroethane 148 20 12 ug/l
75-35-4 1,1-Dichloroethylene ND 50 9.4 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 50 11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 50 15 ug/l
78-87-5 1,2-Dichloropropane ND 30 13 ug/l
142-28-9 1,3-Dichloropropane ND 50 21 ug/l
594-20-7 2,2-Dichloropropane ND 50 7.9 ug/l
563-58-6 1,1-Dichloropropene ND 50 12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 20 10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
7 of 41
LA90088
3
3.
1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-1
Lab Sample ID:LA90088-1 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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 ND 50 7.3 ug/l
64-17-5 Ethyl Alcohol ND 5000 840 ug/l
100-41-4 Ethylbenzene 2570 50 20 ug/l
637-92-3 Ethyl Tert-Butyl Ether ND 50 5.6 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 164 50 13 ug/l
99-87-6 p-Isopropyltoluene 44.5 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 1370 50 10 ug/l
103-65-1 n-Propylbenzene 542 50 22 ug/l
100-42-5 Styrene ND 50 13 ug/l
75-85-4 Tert-Amyl Alcohol ND 2500 77 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 100 8.4 ug/l
75-65-0 Tert-Butyl Alcohol ND 1000 100 ug/l
762-75-4 tert-Butyl Formate ND 500 3.5 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 1940 50 29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 50 16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 50 17 ug/l
71-55-6 1,1,1-Trichloroethane ND 50 16 ug/l
79-00-5 1,1,2-Trichloroethane ND 30 17 ug/l
79-01-6 Trichloroethylene ND 50 18 ug/l
75-69-4 Trichlorofluoromethane ND 50 7.3 ug/l
96-18-4 1,2,3-Trichloropropane ND 50 2.3 ug/l
95-63-6 1,2,4-Trimethylbenzene 6160 50 15 ug/l
108-67-8 1,3,5-Trimethylbenzene 1620 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 14900 100 34 ug/l
95-47-6 o-Xylene 5560 50 15 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
8 of 41
LA90088
3
3.
1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-1
Lab Sample ID:LA90088-1 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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
1330-20-7 Xylene (total)20500 50 16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 104%70-130%
2037-26-5 Toluene-D8 104%70-130%
460-00-4 4-Bromofluorobenzene 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
9 of 41
LA90088
3
3.
1
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-3
Lab Sample ID:LA90088-2 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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 2K0146111.D 100 05/02/23 16:56 MB n/a n/a V2K4090
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 5740 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 43.2 50 14 ug/l J
98-06-6 tert-Butylbenzene ND 50 16 ug/l
56-23-5 Carbon Tetrachloride ND 20 9.2 ug/l
108-90-7 Chlorobenzene ND 50 16 ug/l
75-00-3 Chloroethane ND 50 5.5 ug/l
67-66-3 Chloroform ND 50 9.4 ug/l
95-49-8 o-Chlorotoluene ND 50 16 ug/l
106-43-4 p-Chlorotoluene ND 50 20 ug/l
124-48-1 Dibromochloromethane ND 20 7.5 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 50 13 ug/l
106-93-4 1,2-Dibromoethane ND 50 24 ug/l
75-71-8 Dichlorodifluoromethane ND 50 12 ug/l
541-73-1 m-Dichlorobenzene ND 50 6.3 ug/l
95-50-1 o-Dichlorobenzene ND 50 20 ug/l
106-46-7 p-Dichlorobenzene ND 50 22 ug/l
75-34-3 1,1-Dichloroethane ND 50 10 ug/l
107-06-2 1,2-Dichloroethane 448 20 12 ug/l
75-35-4 1,1-Dichloroethylene ND 50 9.4 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 50 11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 50 15 ug/l
78-87-5 1,2-Dichloropropane ND 30 13 ug/l
142-28-9 1,3-Dichloropropane ND 50 21 ug/l
594-20-7 2,2-Dichloropropane ND 50 7.9 ug/l
563-58-6 1,1-Dichloropropene ND 50 12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 20 10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
10 of 41
LA90088
3
3.
2
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-3
Lab Sample ID:LA90088-2 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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 33.0 50 7.3 ug/l J
64-17-5 Ethyl Alcohol ND 5000 840 ug/l
100-41-4 Ethylbenzene 3190 50 20 ug/l
637-92-3 Ethyl Tert-Butyl Ether ND 50 5.6 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 192 50 13 ug/l
99-87-6 p-Isopropyltoluene 33.6 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 140 50 6.8 ug/l
91-20-3 Naphthalene 1070 50 10 ug/l
103-65-1 n-Propylbenzene 516 50 22 ug/l
100-42-5 Styrene ND 50 13 ug/l
75-85-4 Tert-Amyl Alcohol 26200 2500 77 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 100 8.4 ug/l
75-65-0 Tert-Butyl Alcohol 3010 1000 100 ug/l
762-75-4 tert-Butyl Formate ND 500 3.5 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 269 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 69.3 50 2.3 ug/l
95-63-6 1,2,4-Trimethylbenzene 3570 50 15 ug/l
108-67-8 1,3,5-Trimethylbenzene 1060 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 12000 100 34 ug/l
95-47-6 o-Xylene 2450 50 15 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
11 of 41
LA90088
3
3.
2
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-3
Lab Sample ID:LA90088-2 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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
1330-20-7 Xylene (total)14400 50 16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 106%70-130%
2037-26-5 Toluene-D8 104%70-130%
460-00-4 4-Bromofluorobenzene 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
12 of 41
LA90088
3
3.
2
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:TW-1
Lab Sample ID:LA90088-3 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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 2K0146112.D 50 05/02/23 17:25 MB n/a n/a V2K4090
Run #2 2K0146180.D 100 05/04/23 21:10 MB n/a n/a V2K4092
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 71.8 500 62 ug/l J
71-43-2 Benzene 2970 25 14 ug/l
108-86-1 Bromobenzene ND 25 9.1 ug/l
74-97-5 Bromochloromethane ND 25 6.1 ug/l
75-27-4 Bromodichloromethane ND 25 9.0 ug/l
75-25-2 Bromoform ND 25 5.0 ug/l
104-51-8 n-Butylbenzene ND 25 4.6 ug/l
135-98-8 sec-Butylbenzene ND 25 7.1 ug/l
98-06-6 tert-Butylbenzene ND 25 7.9 ug/l
56-23-5 Carbon Tetrachloride ND 10 4.6 ug/l
108-90-7 Chlorobenzene ND 25 8.2 ug/l
75-00-3 Chloroethane ND 25 2.8 ug/l
67-66-3 Chloroform ND 25 4.7 ug/l
95-49-8 o-Chlorotoluene ND 25 8.2 ug/l
106-43-4 p-Chlorotoluene ND 25 10 ug/l
124-48-1 Dibromochloromethane ND 10 3.7 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 25 6.4 ug/l
106-93-4 1,2-Dibromoethane ND 25 12 ug/l
75-71-8 Dichlorodifluoromethane ND 25 6.1 ug/l
541-73-1 m-Dichlorobenzene ND 25 3.2 ug/l
95-50-1 o-Dichlorobenzene ND 25 9.8 ug/l
106-46-7 p-Dichlorobenzene ND 25 11 ug/l
75-34-3 1,1-Dichloroethane ND 25 5.2 ug/l
107-06-2 1,2-Dichloroethane 650 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 14.8 15 6.3 ug/l J
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 41
LA90088
3
3.
3
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:TW-1
Lab Sample ID:LA90088-3 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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 46.7 25 3.7 ug/l
64-17-5 Ethyl Alcohol ND 2500 420 ug/l
100-41-4 Ethylbenzene 426 25 10 ug/l
637-92-3 Ethyl Tert-Butyl Ether ND 25 2.8 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 49.5 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 82.1 1300 14 ug/l J
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 94.4 25 5.0 ug/l
103-65-1 n-Propylbenzene 40.6 25 11 ug/l
100-42-5 Styrene ND 25 6.3 ug/l
75-85-4 Tert-Amyl Alcohol 45800 a 2500 77 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 50 4.2 ug/l
75-65-0 Tert-Butyl Alcohol 6780 500 51 ug/l
762-75-4 tert-Butyl Formate ND 250 1.8 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 84.5 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 108 25 7.3 ug/l
108-67-8 1,3,5-Trimethylbenzene 44.1 25 8.1 ug/l
108-05-4 Vinyl Acetate ND 25 3.4 ug/l
75-01-4 Vinyl Chloride ND 5.0 3.8 ug/l
m,p-Xylene 263 50 17 ug/l
95-47-6 o-Xylene 17.6 25 7.4 ug/l J
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 41
LA90088
3
3.
3
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:TW-1
Lab Sample ID:LA90088-3 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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
1330-20-7 Xylene (total)281 25 8.1 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 108%106%70-130%
2037-26-5 Toluene-D8 105%106%70-130%
460-00-4 4-Bromofluorobenzene 110%111%70-130%
(a) Result is from Run# 2
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
15 of 41
LA90088
3
3.
3
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:TW-2
Lab Sample ID:LA90088-4 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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 2K0146182.D 50 05/04/23 22:06 MB n/a n/a V2K4092
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 ND 25 14 ug/l
108-86-1 Bromobenzene ND 25 9.1 ug/l
74-97-5 Bromochloromethane ND 25 6.1 ug/l
75-27-4 Bromodichloromethane ND 25 9.0 ug/l
75-25-2 Bromoform ND 25 5.0 ug/l
104-51-8 n-Butylbenzene ND 25 4.6 ug/l
135-98-8 sec-Butylbenzene ND 25 7.1 ug/l
98-06-6 tert-Butylbenzene ND 25 7.9 ug/l
56-23-5 Carbon Tetrachloride ND 10 4.6 ug/l
108-90-7 Chlorobenzene ND 25 8.2 ug/l
75-00-3 Chloroethane ND 25 2.8 ug/l
67-66-3 Chloroform ND 25 4.7 ug/l
95-49-8 o-Chlorotoluene ND 25 8.2 ug/l
106-43-4 p-Chlorotoluene ND 25 10 ug/l
124-48-1 Dibromochloromethane ND 10 3.7 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 25 6.4 ug/l
106-93-4 1,2-Dibromoethane ND 25 12 ug/l
75-71-8 Dichlorodifluoromethane ND 25 6.1 ug/l
541-73-1 m-Dichlorobenzene ND 25 3.2 ug/l
95-50-1 o-Dichlorobenzene ND 25 9.8 ug/l
106-46-7 p-Dichlorobenzene ND 25 11 ug/l
75-34-3 1,1-Dichloroethane ND 25 5.2 ug/l
107-06-2 1,2-Dichloroethane 323 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 41
LA90088
3
3.
4
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:TW-2
Lab Sample ID:LA90088-4 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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 19.1 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
637-92-3 Ethyl Tert-Butyl Ether ND 25 2.8 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 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 101 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
75-85-4 Tert-Amyl Alcohol 37800 1300 38 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 50 4.2 ug/l
75-65-0 Tert-Butyl Alcohol ND 500 51 ug/l
762-75-4 tert-Butyl Formate ND 250 1.8 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
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 41
LA90088
3
3.
4
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:TW-2
Lab Sample ID:LA90088-4 Date Sampled:04/27/23
Matrix:AQ - Ground Water Date Received:04/28/23
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
1330-20-7 Xylene (total)ND 25 8.1 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 104%70-130%
2037-26-5 Toluene-D8 103%70-130%
460-00-4 4-Bromofluorobenzene 109%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
18 of 41
LA90088
3
3.
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 41
LA90088
4
CHAIN OF CUSTODY PAGE \ oF \
SGS North Amorica lnc. . Scott
500 Ambassador Caffery Parkway, Scott, LA 70583
rEL. 337.237.471s FAXr 337.237.7838
www.sgs.com/ehsusa
Vo(*"'"r }\*\Gu\l1c
9-!n <l(-r$--qSe
C o..r-<,ro^R^v'|Jc tftgo'1
\\ARUY 7r\ \t oI .C sr^\\a.(l,{F
()a\Y\
l7G- 9s,- \-.s
LAB USE ONLY
.aI
1r]J+
@oa@.,f-(/)iField lD / Point of Collection j tAD'\0 oGq,11,ll.Nl-\Gw -1hD5(v t \ao x1)GvJ\oo5\tCa\r - \
G\J EAor\\50rl/)q lr1G-rw-?-
oara oerilerab e Lnroflnalion
Note: Sample rnventory is verified upon receipt inComm.rcial 'A" {Lewl l)
Comm.rclal "B ' ( t.vol 2)
E comm.rci.l"c" E othd-
comhercal'A = Resulls Only.
Commr.ial 'a' = Res![s + OC Summary
Comercial'C" = Resulls + QCSummary I P.nid Raw Dal,a
E REDrl (L.wr3+l)
E TRRP
E RECAP
fls BGines! o.Ys RUSH
! 4 Eusine6! oays RUSH
E 3 BBln6. Days RUSH
! 2 Bu 6ino6s DaYs Rus H
f] 1 sGin.ts Dav EMERGETICY
! oth.r
approvod By (scs PM):,o.Gl
h T/A dala availab e v a Lab nk musr be documenled below each lime sam
(3qsxl1
443
5
IIII
Copy of EHSA-OAC'oo26 OO-FORM-Scott Standad COC-FINAL
D u"a tr
httpJ/w\,!w.sgs.com/en/terms-and-conditions
I I lt-tvr I -t /1 ,t ,s, /r' i7
/= Requ€sted AnalvsiB ( ses TEST coDE sheet)
9o
I
!g
6
G\,3{?lvC'$)^' - ?'7h$1 (
1
LA90088: Chain of Custody
Page 1 of 3
20 of 41
LA90088
4
4.
1
'tMPLE hsr,ctr',ru
IGs SCOTT LA I.ABOBATORY tI
ISSI(]N BLVD
E LA 70508
ilffir ililtiilril ill][ I | ill l] I I ll llfl lllll ll I lllll ll I I lll lll FedExExplcra
s
5
FRI APR 1
ffi57079051 2406 PBlo Ot,ERNIGHT
t28
ilTY
I
lffirilil
t,
1
il
It{
E
XH LFTA 70508 ,
LA-u6 LFT I
E
-
E{s
ilt;
f
LA90088: Chain of Custody
Page 2 of 3
21 of 41
LA90088
4
4.
1
SGS Sample Receipt Summary
Job Number:LA90088 Client:ATC
Date / Time Received:4/28/2023 9:15:00 AM Delivery Method:FedEx
Project:HARDY GULF
4. No. Coolers:1
Airbill #'s:5707 9051 2406
Cooler Security
1. Custody Seals Present:
Y or N
2. Custody Seals Intact:
3. COC Present:
4. Smpl Dates/Time OK
2. Thermometer ID:
Cooler Temperature Y or N
1. Temp criteria achieved:
3. Cooler media:
IR001;
Ice (direct contact)
Quality Control Preservation Y or N N/A
1. Trip Blank present / cooler:
2. Trip Blank listed on COC:
3. Samples preserved properly:
4. VOCs headspace free:
Sample Integrity - Documentation Y or N
1. Sample labels present on bottles:
2. Container labeling complete:
3. Sample container label / COC agree:
Sample Integrity - Condition Y or N
1. Sample recvd within HT:
3. Condition of sample:
2. All containers accounted for:
Sample Integrity - Instructions
1. Analysis requested is clear:
2. Bottles received for unspecified tests
3. Sufficient volume recvd for analysis:
4. Compositing instructions clear:
5. Filtering instructions clear:
Intact
Y or N
Comments
Y or N N/A
Cooler Temps (Initial/Adjusted):#1: (1.4/1.4); IR001
LA90088: Chain of Custody
Page 3 of 3
22 of 41
LA90088
4
4.
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 41
LA90088
5
Method Blank Summary Page 1 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4090-MB1 2K0146105.D 1 05/02/23 MB n/a n/a V2K4090
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-2, LA90088-3
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 41
LA90088
5
5.
1
.
1
Method Blank Summary Page 2 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4090-MB1 2K0146105.D 1 05/02/23 MB n/a n/a V2K4090
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-2, LA90088-3
CAS No.Compound Result RL MDL Units Q
637-92-3 Ethyl Tert-Butyl Ether ND 0.50 0.056 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene 0.15 0.20 0.11 ug/l J
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 0.0 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
75-85-4 Tert-Amyl Alcohol ND 25 0.77 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 1.0 0.084 ug/l
75-65-0 Tert-Butyl Alcohol ND 10 1.0 ug/l
762-75-4 tert-Butyl Formate ND 5.0 0.035 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
25 of 41
LA90088
5
5.
1
.
1
Method Blank Summary Page 3 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4090-MB1 2K0146105.D 1 05/02/23 MB n/a n/a V2K4090
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-2, LA90088-3
CAS No.Compound Result RL MDL Units Q
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 101%70-130%
2037-26-5 Toluene-D8 102%70-130%
460-00-4 4-Bromofluorobenzene 106%70-130%
26 of 41
LA90088
5
5.
1
.
1
Method Blank Summary Page 1 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4092-MB1 2K0146177.D 1 05/04/23 MB n/a n/a V2K4092
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-1, LA90088-3, LA90088-4
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
27 of 41
LA90088
5
5.
1
.
2
Method Blank Summary Page 2 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4092-MB1 2K0146177.D 1 05/04/23 MB n/a n/a V2K4092
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-1, LA90088-3, LA90088-4
CAS No.Compound Result RL MDL Units Q
637-92-3 Ethyl Tert-Butyl Ether ND 0.50 0.056 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
75-85-4 Tert-Amyl Alcohol ND 25 0.77 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 1.0 0.084 ug/l
75-65-0 Tert-Butyl Alcohol ND 10 1.0 ug/l
762-75-4 tert-Butyl Formate ND 5.0 0.035 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
28 of 41
LA90088
5
5.
1
.
2
Method Blank Summary Page 3 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4092-MB1 2K0146177.D 1 05/04/23 MB n/a n/a V2K4092
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-1, LA90088-3, LA90088-4
CAS No.Compound Result RL MDL Units Q
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 107%70-130%
2037-26-5 Toluene-D8 102%70-130%
460-00-4 4-Bromofluorobenzene 107%70-130%
29 of 41
LA90088
5
5.
1
.
2
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4090-BS1 2K0146102.D 1 05/02/23 MB n/a n/a V2K4090
V2K4090-BSD1 2K0146103.D 1 05/02/23 MB n/a n/a V2K4090
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-2, LA90088-3
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 50.4 101 49.8 100 1 70-130/30
71-43-2 Benzene 20 17.6 88 17.7 89 1 70-130/30
108-86-1 Bromobenzene 20 18.1 91 18.0 90 1 70-130/30
74-97-5 Bromochloromethane 20 19.6 98 20.0 100 2 70-130/30
75-27-4 Bromodichloromethane 20 22.2 111 22.5 113 1 70-130/30
75-25-2 Bromoform 20 20.3 102 20.1 101 1 70-130/30
104-51-8 n-Butylbenzene 20 19.1 96 20.3 102 6 70-130/30
135-98-8 sec-Butylbenzene 20 17.9 90 19.0 95 6 70-130/30
98-06-6 tert-Butylbenzene 20 17.8 89 18.9 95 6 70-130/30
56-23-5 Carbon Tetrachloride 20 21.1 106 21.3 107 1 70-130/30
108-90-7 Chlorobenzene 20 18.0 90 18.3 92 2 70-130/30
75-00-3 Chloroethane 20 20.8 104 20.4 102 2 60-140/30
67-66-3 Chloroform 20 19.3 97 19.4 97 1 70-130/30
95-49-8 o-Chlorotoluene 20 17.9 90 18.7 94 4 70-130/30
106-43-4 p-Chlorotoluene 20 17.8 89 19.1 96 7 70-130/30
124-48-1 Dibromochloromethane 20 24.1 121 24.2 121 0 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 19.2 96 19.8 99 3 70-130/30
106-93-4 1,2-Dibromoethane 20 20.2 101 20.4 102 1 70-130/30
75-71-8 Dichlorodifluoromethane 20 17.7 89 18.0 90 2 60-140/30
541-73-1 m-Dichlorobenzene 20 17.2 86 18.5 93 7 70-130/30
95-50-1 o-Dichlorobenzene 20 17.5 88 18.4 92 5 70-130/30
106-46-7 p-Dichlorobenzene 20 17.6 88 18.6 93 6 70-130/30
75-34-3 1,1-Dichloroethane 20 18.8 94 19.0 95 1 70-130/30
107-06-2 1,2-Dichloroethane 20 20.9 105 20.9 105 0 70-130/30
75-35-4 1,1-Dichloroethylene 20 19.2 96 20.0 100 4 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 18.1 91 18.4 92 2 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 17.7 89 18.0 90 2 70-130/30
78-87-5 1,2-Dichloropropane 20 18.9 95 19.1 96 1 70-130/30
142-28-9 1,3-Dichloropropane 20 19.0 95 18.8 94 1 70-130/30
594-20-7 2,2-Dichloropropane 20 21.9 110 22.4 112 2 70-130/30
563-58-6 1,1-Dichloropropene 20 18.8 94 19.3 97 3 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 23.4 117 23.4 117 0 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 20.0 100 20.0 100 0 70-130/30
108-20-3 Di-Isopropyl Ether 20 19.6 98 20.1 101 3 70-130/30
64-17-5 Ethyl Alcohol 400 480 120 495 124 3 70-130/30
100-41-4 Ethylbenzene 20 18.2 91 18.5 93 2 70-130/30
* = Outside of Control Limits.
30 of 41
LA90088
5
5.
2
.
1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4090-BS1 2K0146102.D 1 05/02/23 MB n/a n/a V2K4090
V2K4090-BSD1 2K0146103.D 1 05/02/23 MB n/a n/a V2K4090
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-2, LA90088-3
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
637-92-3 Ethyl Tert-Butyl Ether 20 20.3 102 20.7 104 2 70-130/30
591-78-6 2-Hexanone 50 59.8 120 60.2 120 1 70-130/30
87-68-3 Hexachlorobutadiene 20 18.8 94 19.8 99 5 70-130/30
98-82-8 Isopropylbenzene 20 18.5 93 18.8 94 2 70-130/30
99-87-6 p-Isopropyltoluene 20 18.4 92 19.6 98 6 70-130/30
74-83-9 Methyl Bromide 20 19.3 97 20.5 103 6 60-140/30
74-87-3 Methyl Chloride 20 16.8 84 17.4 87 4 60-140/30
74-95-3 Methylene Bromide 20 19.8 99 19.7 99 1 70-130/30
75-09-2 Methylene Chloride 20 18.0 90 18.1 91 1 70-130/30
78-93-3 Methyl Ethyl Ketone 50 50.3 101 49.5 99 2 70-130/30
108-10-1 4-Methyl-2-pentanone 50 57.5 115 57.8 116 1 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 19.5 98 19.7 99 1 70-130/30
91-20-3 Naphthalene 20 22.5 113 23.3 117 3 70-130/30
103-65-1 n-Propylbenzene 20 18.0 90 19.2 96 6 70-130/30
100-42-5 Styrene 20 20.3 102 20.5 103 1 70-130/30
75-85-4 Tert-Amyl Alcohol 200 250 125 253 127 1 50-150/30 a
994-05-8 Tert-Amyl Methyl Ether 20 20.7 104 20.9 105 1 70-130/30
75-65-0 Tert-Butyl Alcohol 100 109 109 113 113 4 70-130/30
762-75-4 tert-Butyl Formate 20 20.6 103 21.1 106 2 50-150/30 a
630-20-6 1,1,1,2-Tetrachloroethane 20 21.4 107 21.8 109 2 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 18.4 92 19.2 96 4 70-130/30
127-18-4 Tetrachloroethylene 20 17.8 89 18.3 92 3 70-130/30
108-88-3 Toluene 20 17.8 89 18.0 90 1 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 19.7 99 20.6 103 4 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 20.1 101 20.9 105 4 70-130/30
71-55-6 1,1,1-Trichloroethane 20 20.3 102 20.7 104 2 70-130/30
79-00-5 1,1,2-Trichloroethane 20 19.0 95 19.2 96 1 70-130/30
79-01-6 Trichloroethylene 20 19.6 98 20.1 101 3 70-130/30
75-69-4 Trichlorofluoromethane 20 18.9 95 19.3 97 2 60-140/30
96-18-4 1,2,3-Trichloropropane 20 17.8 89 18.1 91 2 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 18.5 93 19.8 99 7 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 18.8 94 19.8 99 5 70-130/30
108-05-4 Vinyl Acetate 20 22.0 110 22.1 111 0 70-130/30
75-01-4 Vinyl Chloride 20 18.5 93 19.1 96 3 60-140/30
m,p-Xylene 40 38.1 95 38.8 97 2 70-130/30
95-47-6 o-Xylene 20 18.6 93 18.9 95 2 70-130/30
* = Outside of Control Limits.
31 of 41
LA90088
5
5.
2
.
1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4090-BS1 2K0146102.D 1 05/02/23 MB n/a n/a V2K4090
V2K4090-BSD1 2K0146103.D 1 05/02/23 MB n/a n/a V2K4090
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-2, LA90088-3
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
1330-20-7 Xylene (total)60 56.7 95 57.7 96 2 70-130/30
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 106%100%70-130%
2037-26-5 Toluene-D8 103%102%70-130%
460-00-4 4-Bromofluorobenzene 101%101%70-130%
(a) Advisory control limits.
* = Outside of Control Limits.
32 of 41
LA90088
5
5.
2
.
1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4092-BS1 2K0146174.D 1 05/04/23 MB n/a n/a V2K4092
V2K4092-BSD1 2K0146175.D 1 05/04/23 MB n/a n/a V2K4092
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-1, LA90088-3, LA90088-4
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 43.7 87 47.0 94 7 70-130/30
71-43-2 Benzene 20 16.0 80 16.4 82 2 70-130/30
108-86-1 Bromobenzene 20 15.8 79 16.1 81 2 70-130/30
74-97-5 Bromochloromethane 20 17.2 86 17.8 89 3 70-130/30
75-27-4 Bromodichloromethane 20 19.7 99 20.4 102 3 70-130/30
75-25-2 Bromoform 20 16.5 83 17.6 88 6 70-130/30
104-51-8 n-Butylbenzene 20 17.4 87 17.3 87 1 70-130/30
135-98-8 sec-Butylbenzene 20 16.4 82 16.6 83 1 70-130/30
98-06-6 tert-Butylbenzene 20 16.4 82 16.6 83 1 70-130/30
56-23-5 Carbon Tetrachloride 20 19.2 96 19.8 99 3 70-130/30
108-90-7 Chlorobenzene 20 15.9 80 16.2 81 2 70-130/30
75-00-3 Chloroethane 20 17.6 88 17.9 90 2 60-140/30
67-66-3 Chloroform 20 17.8 89 17.7 89 1 70-130/30
95-49-8 o-Chlorotoluene 20 16.2 81 16.3 82 1 70-130/30
106-43-4 p-Chlorotoluene 20 16.5 83 16.5 83 0 70-130/30
124-48-1 Dibromochloromethane 20 20.1 101 21.0 105 4 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 16.8 84 17.6 88 5 70-130/30
106-93-4 1,2-Dibromoethane 20 17.3 87 18.1 91 5 70-130/30
75-71-8 Dichlorodifluoromethane 20 17.2 86 17.0 85 1 60-140/30
541-73-1 m-Dichlorobenzene 20 15.8 79 15.9 80 1 70-130/30
95-50-1 o-Dichlorobenzene 20 15.6 78 15.9 80 2 70-130/30
106-46-7 p-Dichlorobenzene 20 16.0 80 16.0 80 0 70-130/30
75-34-3 1,1-Dichloroethane 20 17.4 87 17.9 90 3 70-130/30
107-06-2 1,2-Dichloroethane 20 18.4 92 19.2 96 4 70-130/30
75-35-4 1,1-Dichloroethylene 20 18.4 92 19.0 95 3 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 16.8 84 17.2 86 2 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 16.4 82 17.1 86 4 70-130/30
78-87-5 1,2-Dichloropropane 20 16.9 85 17.3 87 2 70-130/30
142-28-9 1,3-Dichloropropane 20 16.3 82 16.9 85 4 70-130/30
594-20-7 2,2-Dichloropropane 20 20.2 101 21.1 106 4 70-130/30
563-58-6 1,1-Dichloropropene 20 17.9 90 18.2 91 2 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 20.4 102 21.2 106 4 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 17.1 86 17.8 89 4 70-130/30
108-20-3 Di-Isopropyl Ether 20 18.0 90 18.5 93 3 70-130/30
64-17-5 Ethyl Alcohol 400 444 111 435 109 2 70-130/30
100-41-4 Ethylbenzene 20 16.6 83 16.5 83 1 70-130/30
* = Outside of Control Limits.
33 of 41
LA90088
5
5.
2
.
2
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4092-BS1 2K0146174.D 1 05/04/23 MB n/a n/a V2K4092
V2K4092-BSD1 2K0146175.D 1 05/04/23 MB n/a n/a V2K4092
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-1, LA90088-3, LA90088-4
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
637-92-3 Ethyl Tert-Butyl Ether 20 18.2 91 19.0 95 4 70-130/30
591-78-6 2-Hexanone 50 52.4 105 53.7 107 2 70-130/30
87-68-3 Hexachlorobutadiene 20 16.0 80 15.9 80 1 70-130/30
98-82-8 Isopropylbenzene 20 16.5 83 16.9 85 2 70-130/30
99-87-6 p-Isopropyltoluene 20 16.8 84 17.0 85 1 70-130/30
74-83-9 Methyl Bromide 20 16.1 81 17.8 89 10 60-140/30
74-87-3 Methyl Chloride 20 15.5 78 15.7 79 1 60-140/30
74-95-3 Methylene Bromide 20 17.2 86 17.8 89 3 70-130/30
75-09-2 Methylene Chloride 20 15.8 79 16.2 81 2 70-130/30
78-93-3 Methyl Ethyl Ketone 50 44.8 90 46.8 94 4 70-130/30
108-10-1 4-Methyl-2-pentanone 50 49.9 100 52.1 104 4 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 17.2 86 18.1 91 5 70-130/30
91-20-3 Naphthalene 20 18.8 94 19.0 95 1 70-130/30
103-65-1 n-Propylbenzene 20 16.6 83 16.7 84 1 70-130/30
100-42-5 Styrene 20 17.8 89 18.2 91 2 70-130/30
75-85-4 Tert-Amyl Alcohol 200 210 105 209 105 0 50-150/30 a
994-05-8 Tert-Amyl Methyl Ether 20 18.0 90 18.9 95 5 70-130/30
75-65-0 Tert-Butyl Alcohol 100 89.8 90 91.7 92 2 70-130/30
762-75-4 tert-Butyl Formate 20 19.3 97 21.2 106 9 50-150/30 a
630-20-6 1,1,1,2-Tetrachloroethane 20 18.4 92 19.0 95 3 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 16.3 82 16.7 84 2 70-130/30
127-18-4 Tetrachloroethylene 20 14.8 74 15.4 77 4 70-130/30
108-88-3 Toluene 20 15.6 78 16.0 80 3 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 16.6 83 16.6 83 0 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 17.2 86 17.1 86 1 70-130/30
71-55-6 1,1,1-Trichloroethane 20 18.7 94 19.4 97 4 70-130/30
79-00-5 1,1,2-Trichloroethane 20 16.8 84 17.2 86 2 70-130/30
79-01-6 Trichloroethylene 20 17.9 90 18.2 91 2 70-130/30
75-69-4 Trichlorofluoromethane 20 18.4 92 18.9 95 3 60-140/30
96-18-4 1,2,3-Trichloropropane 20 15.6 78 16.0 80 3 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 17.0 85 17.1 86 1 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 17.1 86 17.3 87 1 70-130/30
108-05-4 Vinyl Acetate 20 20.0 100 21.2 106 6 70-130/30
75-01-4 Vinyl Chloride 20 16.5 83 17.3 87 5 60-140/30
m,p-Xylene 40 34.0 85 34.6 87 2 70-130/30
95-47-6 o-Xylene 20 16.6 83 16.8 84 1 70-130/30
* = Outside of Control Limits.
34 of 41
LA90088
5
5.
2
.
2
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4092-BS1 2K0146174.D 1 05/04/23 MB n/a n/a V2K4092
V2K4092-BSD1 2K0146175.D 1 05/04/23 MB n/a n/a V2K4092
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-1, LA90088-3, LA90088-4
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
1330-20-7 Xylene (total)60 50.5 84 51.4 86 2 70-130/30
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 103%109%70-130%
2037-26-5 Toluene-D8 102%102%70-130%
460-00-4 4-Bromofluorobenzene 101%103%70-130%
(a) Advisory control limits.
* = Outside of Control Limits.
35 of 41
LA90088
5
5.
2
.
2
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA90037-2MS 2K0146151.D 20 05/03/23 MB n/a n/a V2K4090
LA90037-2MSD 2K0146152.D 20 05/03/23 MB n/a n/a V2K4090
LA90037-2 2K0146117.D 1 05/02/23 MB n/a n/a V2K4090
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-2, LA90088-3
LA90037-2 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
67-64-1 Acetone ND 1000 502 50* a 1000 519 52* a 3 70-130/20
71-43-2 Benzene 59.8 400 349 72 400 352 73 1 70-130/20
108-86-1 Bromobenzene ND 400 299 75 400 294 74 2 70-130/20
74-97-5 Bromochloromethane ND 400 329 82 400 333 83 1 70-130/20
75-27-4 Bromodichloromethane ND 400 370 93 400 378 95 2 70-130/20
75-25-2 Bromoform ND 400 315 79 400 323 81 3 70-130/20
104-51-8 n-Butylbenzene ND 400 316 79 400 317 79 0 70-130/20
135-98-8 sec-Butylbenzene ND 400 307 77 400 311 78 1 70-130/20
98-06-6 tert-Butylbenzene ND 400 313 78 400 317 79 1 70-130/20
56-23-5 Carbon Tetrachloride ND 400 352 88 400 365 91 4 70-130/20
108-90-7 Chlorobenzene ND 400 309 77 400 304 76 2 70-130/20
75-00-3 Chloroethane ND 400 345 86 400 346 87 0 60-140/20
67-66-3 Chloroform 0.60 400 314 78 400 322 80 3 70-130/20
95-49-8 o-Chlorotoluene ND 400 306 77 400 305 76 0 70-130/20
106-43-4 p-Chlorotoluene ND 400 314 79 400 310 78 1 70-130/20
124-48-1 Dibromochloromethane ND 400 386 97 400 389 97 1 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 400 308 77 400 311 78 1 70-130/20
106-93-4 1,2-Dibromoethane ND 400 341 85 400 333 83 2 70-130/20
75-71-8 Dichlorodifluoromethane ND 400 284 71 400 282 71 1 60-140/20
541-73-1 m-Dichlorobenzene ND 400 296 74 400 296 74 0 70-130/20
95-50-1 o-Dichlorobenzene ND 400 294 74 400 291 73 1 70-130/20
106-46-7 p-Dichlorobenzene ND 400 296 74 400 299 75 1 70-130/20
75-34-3 1,1-Dichloroethane ND 400 328 82 400 330 83 1 70-130/20
107-06-2 1,2-Dichloroethane ND 400 350 88 400 354 89 1 70-130/20
75-35-4 1,1-Dichloroethylene ND 400 344 86 400 348 87 1 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 400 319 80 400 320 80 0 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 400 307 77 400 314 79 2 70-130/20
78-87-5 1,2-Dichloropropane ND 400 325 81 400 322 81 1 70-130/20
142-28-9 1,3-Dichloropropane ND 400 319 80 400 312 78 2 70-130/20
594-20-7 2,2-Dichloropropane ND 400 345 86 400 351 88 2 70-130/20
563-58-6 1,1-Dichloropropene ND 400 331 83 400 336 84 1 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 400 379 95 400 385 96 2 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 400 323 81 400 325 81 1 70-130/20
108-20-3 Di-Isopropyl Ether 0.92 400 337 84 400 340 85 1 70-130/20
64-17-5 Ethyl Alcohol ND 8000 4190 52* a 8000 7310 91 54* b 70-130/20
100-41-4 Ethylbenzene ND 400 317 79 400 311 78 2 70-130/20
* = Outside of Control Limits.
36 of 41
LA90088
5
5.
3
.
1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA90037-2MS 2K0146151.D 20 05/03/23 MB n/a n/a V2K4090
LA90037-2MSD 2K0146152.D 20 05/03/23 MB n/a n/a V2K4090
LA90037-2 2K0146117.D 1 05/02/23 MB n/a n/a V2K4090
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-2, LA90088-3
LA90037-2 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
637-92-3 Ethyl Tert-Butyl Ether ND 400 335 84 400 344 86 3 70-130/20
591-78-6 2-Hexanone ND 1000 877 88 1000 825 83 6 70-130/20
87-68-3 Hexachlorobutadiene ND 400 285 71 400 300 75 5 70-130/20
98-82-8 Isopropylbenzene 0.71 400 316 79 400 311 78 2 70-130/20
99-87-6 p-Isopropyltoluene ND 400 311 78 400 317 79 2 70-130/20
74-83-9 Methyl Bromide ND 400 288 72 400 333 83 14 60-140/20
74-87-3 Methyl Chloride 0.00 400 296 74 400 297 74 0 60-140/20
74-95-3 Methylene Bromide ND 400 329 82 400 331 83 1 70-130/20
75-09-2 Methylene Chloride ND 400 314 79 400 313 78 0 70-130/20
78-93-3 Methyl Ethyl Ketone ND 1000 728 73 1000 730 73 0 70-130/20
108-10-1 4-Methyl-2-pentanone ND 1000 966 97 1000 958 96 1 70-130/20
1634-04-4 Methyl Tert Butyl Ether 22.1 400 343 80 400 344 80 0 70-130/20
91-20-3 Naphthalene 0.84 400 353 88 400 352 88 0 70-130/20
103-65-1 n-Propylbenzene ND 400 313 78 400 314 79 0 70-130/20
100-42-5 Styrene ND 400 338 85 400 333 83 1 70-130/20
75-85-4 Tert-Amyl Alcohol ND 4000 3680 92 4000 4180 105 13 50-150/30 c
994-05-8 Tert-Amyl Methyl Ether ND 400 344 86 400 350 88 2 70-130/20
75-65-0 Tert-Butyl Alcohol ND 2000 1540 77 2000 1820 91 17 70-130/20
762-75-4 tert-Butyl Formate ND 400 336 84 400 378 95 12 50-150/30 c
630-20-6 1,1,1,2-Tetrachloroethane ND 400 356 89 400 354 89 1 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 400 324 81 400 318 80 2 70-130/20
127-18-4 Tetrachloroethylene ND 400 254 64* a 400 257 64* a 1 70-130/20
108-88-3 Toluene ND 400 303 76 400 301 75 1 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 400 316 79 400 321 80 2 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 400 323 81 400 326 82 1 70-130/20
71-55-6 1,1,1-Trichloroethane ND 400 355 89 400 357 89 1 70-130/20
79-00-5 1,1,2-Trichloroethane ND 400 322 81 400 321 80 0 70-130/20
79-01-6 Trichloroethylene ND 400 338 85 400 338 85 0 70-130/20
75-69-4 Trichlorofluoromethane ND 400 333 83 400 340 85 2 60-140/20
96-18-4 1,2,3-Trichloropropane ND 400 300 75 400 292 73 3 70-130/20
95-63-6 1,2,4-Trimethylbenzene ND 400 315 79 400 317 79 1 70-130/20
108-67-8 1,3,5-Trimethylbenzene ND 400 319 80 400 319 80 0 70-130/20
108-05-4 Vinyl Acetate ND 400 381 95 400 391 98 3 70-130/20
75-01-4 Vinyl Chloride ND 400 313 78 400 318 80 2 60-140/20
m,p-Xylene ND 800 650 81 800 644 81 1 70-130/20
95-47-6 o-Xylene 7.6 400 322 79 400 317 77 2 70-130/20
* = Outside of Control Limits.
37 of 41
LA90088
5
5.
3
.
1
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA90037-2MS 2K0146151.D 20 05/03/23 MB n/a n/a V2K4090
LA90037-2MSD 2K0146152.D 20 05/03/23 MB n/a n/a V2K4090
LA90037-2 2K0146117.D 1 05/02/23 MB n/a n/a V2K4090
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-2, LA90088-3
LA90037-2 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
1330-20-7 Xylene (total)7.7 1200 971 80 1200 961 79 1 70-130/20
CAS No.Surrogate Recoveries MS MSD LA90037-2 Limits
17060-07-0 1,2-Dichloroethane-D4 107%110%101%70-130%
2037-26-5 Toluene-D8 102%102%103%70-130%
460-00-4 4-Bromofluorobenzene 102%101%104%70-130%
(a) Outside control limits due to matrix interference. Blank Spike meets acceptance criteria.
(b) RPD exceeded criteria. However, both recoveries passed criteria and the samples were ND.
(c) Advisory control limits.
* = Outside of Control Limits.
38 of 41
LA90088
5
5.
3
.
1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA90088-1MS 2K0146188.D 1000 05/05/23 MB n/a n/a V2K4092
LA90088-1MSD 2K0146189.D 1000 05/05/23 MB n/a n/a V2K4092
LA90088-1 2K0146179.D 100 05/04/23 MB n/a n/a V2K4092
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-1, LA90088-3, LA90088-4
LA90088-1 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
67-64-1 Acetone ND 50000 39400 79 50000 40800 82 3 70-130/20
71-43-2 Benzene 4420 20000 20900 82 20000 21400 85 2 70-130/20
108-86-1 Bromobenzene ND 20000 15900 80 20000 15600 78 2 70-130/20
74-97-5 Bromochloromethane ND 20000 17800 89 20000 18100 91 2 70-130/20
75-27-4 Bromodichloromethane ND 20000 20200 101 20000 20700 104 2 70-130/20
75-25-2 Bromoform ND 20000 16500 83 20000 16500 83 0 70-130/20
104-51-8 n-Butylbenzene ND 20000 28700 144*20000 19700 99 37*70-130/20
135-98-8 sec-Butylbenzene ND 20000 16700 84 20000 17300 87 4 70-130/20
98-06-6 tert-Butylbenzene ND 20000 15900 80 20000 16400 82 3 70-130/20
56-23-5 Carbon Tetrachloride ND 20000 19700 99 20000 20400 102 3 70-130/20
108-90-7 Chlorobenzene ND 20000 16300 82 20000 16500 83 1 70-130/20
75-00-3 Chloroethane ND 20000 18000 90 20000 18900 95 5 60-140/20
67-66-3 Chloroform ND 20000 18500 93 20000 18300 92 1 70-130/20
95-49-8 o-Chlorotoluene ND 20000 16400 82 20000 16600 83 1 70-130/20
106-43-4 p-Chlorotoluene ND 20000 16500 83 20000 16900 85 2 70-130/20
124-48-1 Dibromochloromethane ND 20000 20600 103 20000 20900 105 1 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 20000 17300 87 20000 17600 88 2 70-130/20
106-93-4 1,2-Dibromoethane ND 20000 18100 91 20000 18200 91 1 70-130/20
75-71-8 Dichlorodifluoromethane ND 20000 17400 87 20000 18000 90 3 60-140/20
541-73-1 m-Dichlorobenzene ND 20000 15800 79 20000 15900 80 1 70-130/20
95-50-1 o-Dichlorobenzene ND 20000 15800 79 20000 15900 80 1 70-130/20
106-46-7 p-Dichlorobenzene ND 20000 15800 79 20000 16200 81 3 70-130/20
75-34-3 1,1-Dichloroethane ND 20000 17900 90 20000 18300 92 2 70-130/20
107-06-2 1,2-Dichloroethane 148 20000 19500 97 20000 19500 97 0 70-130/20
75-35-4 1,1-Dichloroethylene ND 20000 19300 97 20000 19400 97 1 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 20000 17200 86 20000 17300 87 1 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 20000 17200 86 20000 17300 87 1 70-130/20
78-87-5 1,2-Dichloropropane ND 20000 17200 86 20000 17500 88 2 70-130/20
142-28-9 1,3-Dichloropropane ND 20000 17000 85 20000 17300 87 2 70-130/20
594-20-7 2,2-Dichloropropane ND 20000 17300 87 20000 17500 88 1 70-130/20
563-58-6 1,1-Dichloropropene ND 20000 18200 91 20000 18500 93 2 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 20000 20100 101 20000 20800 104 3 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 20000 17000 85 20000 17500 88 3 70-130/20
108-20-3 Di-Isopropyl Ether ND 20000 18600 93 20000 18800 94 1 70-130/20
64-17-5 Ethyl Alcohol ND 400000 294000 74 400000 345000 86 16 70-130/20
100-41-4 Ethylbenzene 2570 20000 21400 94 20000 21100 93 1 70-130/20
* = Outside of Control Limits.
39 of 41
LA90088
5
5.
3
.
2
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA90088-1MS 2K0146188.D 1000 05/05/23 MB n/a n/a V2K4092
LA90088-1MSD 2K0146189.D 1000 05/05/23 MB n/a n/a V2K4092
LA90088-1 2K0146179.D 100 05/04/23 MB n/a n/a V2K4092
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-1, LA90088-3, LA90088-4
LA90088-1 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
637-92-3 Ethyl Tert-Butyl Ether ND 20000 18300 92 20000 18900 95 3 70-130/20
591-78-6 2-Hexanone ND 50000 51200 102 50000 50200 100 2 70-130/20
87-68-3 Hexachlorobutadiene ND 20000 16400 82 20000 17100 86 4 70-130/20
98-82-8 Isopropylbenzene 164 20000 17200 85 20000 17200 85 0 70-130/20
99-87-6 p-Isopropyltoluene 44.5 J 20000 17900 89 20000 18500 92 3 70-130/20
74-83-9 Methyl Bromide ND 20000 16100 81 20000 18300 92 13 60-140/20
74-87-3 Methyl Chloride ND 20000 15700 79 20000 15900 80 1 60-140/20
74-95-3 Methylene Bromide ND 20000 17800 89 20000 17800 89 0 70-130/20
75-09-2 Methylene Chloride ND 20000 16500 83 20000 16900 85 2 70-130/20
78-93-3 Methyl Ethyl Ketone ND 50000 44100 88 50000 43100 86 2 70-130/20
108-10-1 4-Methyl-2-pentanone ND 50000 51300 103 50000 51300 103 0 70-130/20
1634-04-4 Methyl Tert Butyl Ether ND 20000 18000 90 20000 18100 91 1 70-130/20
91-20-3 Naphthalene 1370 20000 28900 138*20000 29200 139*1 70-130/20
103-65-1 n-Propylbenzene 542 20000 18700 91 20000 19100 93 2 70-130/20
100-42-5 Styrene ND 20000 18200 91 20000 18100 91 1 70-130/20
75-85-4 Tert-Amyl Alcohol ND 200000 223000 112 200000 225000 113 1 50-150/30 a
994-05-8 Tert-Amyl Methyl Ether ND 20000 18200 91 20000 18600 93 2 70-130/20
75-65-0 Tert-Butyl Alcohol ND 100000 90000 90 100000 94400 94 5 70-130/20
762-75-4 tert-Butyl Formate ND 20000 20400 102 20000 18200 91 11 50-150/30 a
630-20-6 1,1,1,2-Tetrachloroethane ND 20000 18600 93 20000 19300 97 4 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 20000 16700 84 20000 16800 84 1 70-130/20
127-18-4 Tetrachloroethylene ND 20000 18200 91 20000 18500 93 2 70-130/20
108-88-3 Toluene 1940 20000 18400 82 20000 18800 84 2 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 20000 17500 88 20000 17900 90 2 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 20000 17700 89 20000 18200 91 3 70-130/20
71-55-6 1,1,1-Trichloroethane ND 20000 19500 98 20000 19800 99 2 70-130/20
79-00-5 1,1,2-Trichloroethane ND 20000 17400 87 20000 17900 90 3 70-130/20
79-01-6 Trichloroethylene ND 20000 18400 92 20000 18800 94 2 70-130/20
75-69-4 Trichlorofluoromethane ND 20000 18800 94 20000 19000 95 1 60-140/20
96-18-4 1,2,3-Trichloropropane ND 20000 16600 83 20000 16400 82 1 70-130/20
95-63-6 1,2,4-Trimethylbenzene 6160 20000 44000 189*20000 46300 201*5 70-130/20
108-67-8 1,3,5-Trimethylbenzene 1620 20000 24200 113 20000 25200 118 4 70-130/20
108-05-4 Vinyl Acetate ND 20000 18600 93 20000 19200 96 3 70-130/20
75-01-4 Vinyl Chloride ND 20000 17000 85 20000 18100 91 6 60-140/20
m,p-Xylene 14900 40000 60400 114 40000 61400 116 2 70-130/20
95-47-6 o-Xylene 5560 20000 27200 108 20000 27400 109 1 70-130/20
* = Outside of Control Limits.
40 of 41
LA90088
5
5.
3
.
2
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA90088
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA90088-1MS 2K0146188.D 1000 05/05/23 MB n/a n/a V2K4092
LA90088-1MSD 2K0146189.D 1000 05/05/23 MB n/a n/a V2K4092
LA90088-1 2K0146179.D 100 05/04/23 MB n/a n/a V2K4092
The QC reported here applies to the following samples:Method: SM 6200B
LA90088-1, LA90088-3, LA90088-4
LA90088-1 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
1330-20-7 Xylene (total)20500 60000 87600 112 60000 88800 114 1 70-130/20
CAS No.Surrogate Recoveries MS MSD LA90088-1 Limits
17060-07-0 1,2-Dichloroethane-D4 107%105%104%70-130%
2037-26-5 Toluene-D8 101%101%104%70-130%
460-00-4 4-Bromofluorobenzene 102%99%107%70-130%
(a) Advisory control limits.
* = Outside of Control Limits.
41 of 41
LA90088
5
5.
3
.
2

APPENDIX E

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