WI-1925_22674_CA_MRP_20230227

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

February 27, 2023

Ms. Liz Price
North Carolina Department of Environmental Quality
Division of Waste Management, UST Section
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, North Carolina 28405

Re: Groundwater Sampling Report
Former Margaret Murphy
2874 South NC Highway 11
Rose Hill, Duplin County, North Carolina
NCDEQ Incident Number 22674

Dear Ms. Price:

ATC Associates of North Carolina, P.C. (ATC), on behalf of Cenama, LLC, is submitting this Groundwater
Monitoring Report to document activities conducted at the site.

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

Groundwater Monitoring Report
Former Margaret Murphy Station
2874 South N.C. Highway 11
Rose Hill, North Carolina
February 27, 2023

Site Identification

1. Site Identification
Date of Report: February 27, 2023
Facility I.D.: 0-001148 UST Incident Number (if known): 22674
Site Risk: __High______ Site Rank: 165D Land Use Category: Residential
Site Name: Former Margaret Murphy Station
Site Street Address: 2874 South NC Highway 11
City/Town: Rose Hill Zip Code: 28458 County: Duplin
Description of Geographical Data Point: UST basin________
Location Method: Google Earth____________ ___________ __ _
Latitude (decimal degrees): _34.806727° N_ Longitude (decimal degrees): __77.942885°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 Margaret Murphy Station
Address: 2874 South NC Highway 11 Rose Hill, North Carolina 28458 Tel.: Unknown
Property Owner: Vernon Rouse, Owen Rouse, and Eva Rouse Lennon
Address: 1533 W. Charity Road Rose Hill, North Carolina 28458 Tel.: Unknown
Property Occupant: Vacant
Address: 2874 South NC Highway 11 Rose Hill, North Carolina 28458 Tel.: N/A
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, LA 70583 Tel: _337-237-4775

3. Information about Release
Date Discovered: October 26, 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:
Two 550-gallon gasoline USTs and two 550-gallon USTs of unknown contents
Criteria Used to Classify Risk: Water Supply Wells within 1,500 feet of Source Area

4. Information about the Monitoring Report
Date(s) of Groundwater Monitoring/Soil Sampling Event(s): January 18, 2023

TABLE OF CONTENTS
1.0 INTRODUCTION........................................................................................................1
2.0 EXECUTIVE SUMMARY .........................................................................................1
3.0 SITE HISTORY ...........................................................................................................2
4.0 GROUNDWATER MONITORING ..........................................................................4
4.1 Geology and Hydrogeology .................................................................................4
4.2 Groundwater Elevations.......................................................................................5
4.3 Groundwater Analytical Results ..........................................................................5
4.4 LNAPL Recovery ................................................................................................7
5.0 MONITORING PLAN AND SCHEDULE ...............................................................7
6.0 CONCLUSIONS ..........................................................................................................7
7.0 STATEMENTS AND CERTIFICATION ................................................................9

TABLES

Table 1 UST Owner/Operator and System Information
Table 2 Adjacent Property Ownership Information
Table 3 Water Supply Well Information
Table 4 Monitoring Well Construction Details
Table 5 Groundwater Elevations and Historical Data
Table 6 Groundwater Analytical Results
Table 7 Historical Groundwater Analytical Results
Table 8 Select Natural Attenuation Measurements
Table 9 Contaminant Mass Calculations (Benzene)
Table 10 Contaminant Mass Removal (Benzene)

FIGURES

Figure 1 Topographic Map
Figure 2 Site Map
Figure 3 1,500 Radius Map
Figure 4 Groundwater Elevation Contour Map
Figure 5 Dissolved Contaminants of Concern Map
Figure 6 MW-1R: Dissolved Benzene Concentrations through Time versus Depth
to Water
Figure 7 MW-11R: Dissolved Benzene Concentrations through Time versus Depth
to Water
Figure 8 MW-12R: Dissolved Benzene Concentrations through Time versus Depth
to Water
Figure 9 MW-14R: Dissolved Benzene Concentrations through Time versus Depth
to Water

APPENDICES

Appendix A Historical Soil Data
Appendix B Historical Groundwater Elevation Contour Maps
Appendix C Laboratory Analytical Results
Appendix D Contaminant Mass versus Time

Groundwater Monitoring Report February 27, 2023
NCDEQ Incident No.22674
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 Margaret
Murphy Station facility located at 2874 South N.C. Highway 11 Rose Hill, Duplin County, North
Carolina (Incident #22674). Currently, the site is vacant and undeveloped. 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
Approximately 628 tons of petroleum-impacted soils were removed from the facility during May
2004. The soils were excavated from a depth of four to seven feet below ground surface (bgs).
Historical groundwater analytical results since 2004 indicated that impacted soils were still
present and may be contributing to the groundwater contamination at the site. Therefore, on
December 20, 2010, eleven soil borings were advanced at the site to evaluate the soil impacted
below the bottom of the May 2004 excavation. Laboratory analyses of the soil samples collected
during December 2010 detected target compound concentrations above Soil-to-Groundwater
(STGW) Maximum Soil Contaminant Concentrations (MSCCs) in several of the soil samples.
Based on the field observations and laboratory analytical results, it is estimated that
approximately 700 tons of petroleum-impacted soil remain at the site. Historical soil analytical
data is provided in Appendix A.

Historically, it appears dissolved target compound concentrations were found to exceed the
established 2L Standards in the groundwater samples collected from monitoring wells MW-1R,
MW-3R, MW-5, MW-11R, MW-12R, MW-13R, MW-14R, and MW-16. Based on the
calculated groundwater flow direction across the site, impacted groundwater is likely migrating
to the southwest. 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 currently are limited to the vicinity of monitoring well MW-14R. In
2004, the dissolved contaminant mass at the site was estimated to cover an area approximately
10,200 square feet (ft2) resulting in:
• a calculated dissolved benzene mass of 5.4886 kilograms (kg);
• a calculated soil source zone benzene mass of 0 kg; and,

Groundwater Monitoring Report February 27, 2023
NCDEQ Incident No.22674

Page 2
• a calculated smear source mass of 5.28 kg.
These calculations resulted in a total mass baseline/milestone benzene concentration of 10.7686
kg.

Based on the most recent groundwater analytical data (January 2023), the dissolved contaminant
mass at the site was estimated to cover an area approximately 2,100 ft2 resulting in a calculated
benzene mass of 0.060237 kg. To date, the benzene mass has decreased at the site by
approximately 50.97%.

Based on the current groundwater analytical results, ATC recommends continued annual
groundwater sampling activities of select monitoring wells to monitor natural attenuation
activities. The next groundwater sampling event will be scheduled during January 2024.

3.0 SITE HISTORY
The site previously operated as a convenience store and retail fuel outlet. On October 26, 1994,
the underground storage tank (UST) system was removed from the facility. During closure
activities, two 550-gallon USTs of unknown contents were discovered and subsequently
removed along with the known USTs. Based on results of the closure activities, various phases
of assessment were conducted between 1994 and 2001.

On October 14, 2002, the North Carolina Department of Environmental Quality (NCDEQ)
issued a Notice of Regulatory Requirements (NORR) requesting the preparation and submittal of
a Correction Action Plan (CAP). A CAP was subsequently prepared and recommended the
excavation of impacted soil, proper abandonment of water supply wells within 1,000 feet of the
site, and monitored natural attenuation.

On May 11 and 12, 2004, approximately 628 tons of petroleum-impacted soil was removed from
the site at depths ranging from four to seven feet below ground surface (bgs). Laboratory
analytical results indicated the continued presence of target compound concentrations above
Soil-to-Groundwater (STGW) Maximum Soil Contaminant Concentrations (MSCCs).

Groundwater Monitoring Report February 27, 2023
NCDEQ Incident No.22674

Page 3
In December 2010, eleven soil borings were advanced at the site to evaluate the soil impacted
below the bottom of the May 2004 excavation. Laboratory analyses of the soil samples collected
during December 2010 detected target compound concentrations above Soil-to-Groundwater
(STGW) Maximum Soil Contaminant Concentrations (MSCCs) in several of the soil samples.
Based on the field observations and laboratory analytical results, it is estimated that
approximately 700 tons of petroleum-impacted soil remain at the site.

Since 2010, the NCDEQ has requested biennial groundwater sampling of select monitoring
wells.

On July 21, 2020, DEQ responded to the results of the updated receptor survey letter report,
dated July 15, 2020. It was determined the site would remain ranked as high risk and annual
groundwater sampling was requested.

The site is currently undeveloped; however, historically, it operated as a small convenience store
and retail fuel outlet. Properties surrounding the subject facility are predominantly agriculture
and residential. Zoning information is not available for the site and surrounding properties as the
properties are located within Duplin County. The nearest residence was identified approximately
100 feet southwest of the source area. Adjacent property owner information is included as Table
2.

Duplin County and the Town of Greenevers provide public water to the site and surrounding
areas; however, it is not mandatory for properties to be connected to the public water supply.
The subject facility is connected to the public water system and the onsite water supply well
(located approximately 90 feet from the source area) is non-operational and does not have a
pump installed. According to the property owner, they have no plans on putting the water supply
well back into operation and they will not grant access to property abandon the water supply
well. Several other properties within 1,500 feet of the source area have potable water supply
wells. The nearest identified operational water supply well is located approximately 450 feet
from the source area. Water supply information is provided in Table 3 and Figure 3.

Groundwater Monitoring Report February 27, 2023
NCDEQ Incident No.22674

Page 4
The nearest surface water feature is an unnamed tributary to Island Creek located approximately
700 feet west of the source area. Cook’s Branch Creek is located approximately 900 feet east of
the source area. Other surface water features were not identified within 1,500 feet of the source
area.

The source area is not located within an approved wellhead protection area as defined in 42 USC
300h-7(e).

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

4.0 GROUNDWATER MONITORING
4.1 Geology and Hydrogeology
The subject facility lies within the Inner Coastal Plain of the Atlantic Coastal Plain province.
Overall, the Atlantic Coastal Plain slopes eastward at an average rate of less than three feet per
mile. The coastal plain is basically flat in interstream areas, but is broken by low escarpments
adjacent to stream valleys. Duplin County has numerous aquifer systems. These systems
include the surficial aquifer, Peedee confining unit and aquifer, and the Black Creek confining
unit and aquifer.

Within the Inner Coastal Plain, the unconsolidated sediments of the surficial aquifer become
coarser grained and more poorly sorted with an average thickness of fourteen feet. The surficial
aquifer is of major importance due to its extended coverage throughout the Coastal Plain.
Precipitation infiltrating this aquifer is responsible for the bulk of water recharging the Coastal
Plain aquifer system. The surficial sediments are approximately eight feet in thickness in the
area of the subject facility.

Groundwater movement in the upper portion of the surficial aquifer appears to flow in a
southwesterly 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.

Aquifer characteristics for the facility are on file at the NCDEQ in previous reports.

Groundwater Monitoring Report February 27, 2023
NCDEQ Incident No.22674

Page 5

4.2 Groundwater Elevations
On January 18, 2023, ATC collected static water level measurements from monitoring wells
MW-11R, MW-12R, and MW-14R. It should be noted monitoring well MW-16 was scheduled
to be sampled; however, this well could not be located.

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 4. Current and historical groundwater elevation data are included in Table 5. A groundwater
elevation contour map based on the January 2023 static water level data is included as Figure 4.
Based on the recent groundwater level measurements, groundwater appears to flow to the southeast
across the site. Historical groundwater flow maps are provided in Appendix B.

4.3 Groundwater Analytical Results
On January 18, 2023, groundwater samples were collected from monitoring wells MW-11R,
MW-12R, and MW-14R. Monitoring well MW-16 was scheduled to be sampled; however, this
well could not be located.

Groundwater samples were collected into laboratory-approved containers, packed in ice and
delivered under chain-of-custody to SGS North America, Inc. (SGS) 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 6
and a historical summary of groundwater analytical data is presented in Table 7. Select natural
attenuation measurements are provided in Table 8. A dissolved contaminants of concern map is
provided as Figure 5.

Laboratory analytical results from the January 2023 sampling event detected dissolved benzene
and naphthalene concentrations above established 2L Standards in the groundwater samples
collected from monitoring wells MW-12R and MW-14R. A dissolved 1,2-Dichloroethane
concentration was detected above its established 2L Standard in the groundwater sample

Groundwater Monitoring Report February 27, 2023
NCDEQ Incident No.22674

Page 6
collected from monitoring well MW-14R. It appears dissolved target compound concentrations
have decreased significantly at the site since 2004.

Groundwater concentrations trend plots for dissolved benzene concentrations through time
versus depth to water for select monitoring wells are provided in Figures 6 through 9. The
laboratory report and chain of custody documents are provided in Appendix C.

Historically, it appears dissolved target compound concentrations were found to exceed the
established 2L Standards in the groundwater samples collected from monitoring wells MW-1R,
MW-3R, MW-5, MW-11R, MW-12R, MW-13R, MW-14R, and MW-16. Based on the
calculated groundwater flow direction across the site, impacted groundwater is likely migrating
to the southwest. 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 currently are limited to the vicinity of monitoring well MW-14R. In
2004, the dissolved contaminant mass at the site was estimated to cover an area approximately
10,200 square feet (ft2) resulting in:
• a calculated dissolved benzene mass of 5.4886 kilograms (kg);
• a calculated soil source zone benzene mass of 0 kg; and,
• a calculated smear source mass of 5.28 kg.
These calculations resulted in a total mass baseline/milestone benzene concentration of 10.7686
kg.

Based on the most recent groundwater analytical data (January 2023), the dissolved contaminant
mass at the site was estimated to cover an area approximately 2,100 ft2 resulting in a calculated
benzene mass of 0.060237 kg. To date, the benzene mass has decreased at the site by
approximately 50.97%. The contaminant mass calculations are provided in Table 9 and
contaminant mass removal is provided in Table 10. Contaminant mass versus time is provided
in Appendix D.

Groundwater Monitoring Report February 27, 2023
NCDEQ Incident No.22674

Page 7
4.4 LNAPL Recovery
Historically, light non-aqueous phase liquid (LNAPL) was detected in monitoring well MW-1
during 2002. Since 2004, LNAPL has not been detected in monitoring wells associated with this
release.

5.0 MONITORING PLAN AND SCHEDULE
Based on the current groundwater analytical results, ATC recommends continued annual
groundwater sampling activities of select monitoring wells to monitor natural attenuation
activities. The next groundwater sampling will be scheduled for January 2024.

6.0 CONCLUSIONS
ATC has performed a groundwater sampling event at the Former Margaret Murphy Station
facility in Rose Hill, North Carolina. Based on field activities, observations, and groundwater
analytical results, ATC concludes the following:
• Depth to groundwater measurements ranged from 8.26 feet to 8.87 feet below ground surface
MW-14R and MW-11R, respectively. Based on information obtained during the January
2023 sampling event, groundwater appears to flow across the site in a southeasterly direction;
• The site and surrounding area are provided public water by either Duplin County or the
Town of Greenevers; however, it is not mandatory for properties to be connected to the
public water supply. The nearest water supply well (located approximately 90 feet from the
source area) is non-operational and does not have a pump installed. According to the
property owner, they have no plans on putting the water supply well back into operation and
they will not grant access to property abandon the water supply well. The nearest identified
operational water supply well is located approximately 450 feet from the source area;
• The nearest surface water body is an unnamed tributary to Island Creek located
approximately 700 feet west of the source area. Cook’s Branch Creek is located
approximately 900 feet east of the source area;
• The site is not located within a wellhead protection area;
• LNAPL was not detected during the January 2023 sampling event;
• Approximately 628 tons of petroleum-impacted soils were removed from the facility during
May 2004. Laboratory analyses of the soil samples collected during December 2010
detected target compound concentrations above Soil-to-Groundwater (STGW) Maximum

Groundwater Monitoring Report February 27, 2023
NCDEQ Incident No.22674

Page 8
Soil Contaminant Concentrations (MSCCs) in several of the soil samples. Based on the field
observations and laboratory analytical results, it is estimated that approximately 700 tons of
petroleum-impacted soil remain at the site;
• Laboratory analytical results from the January 2023 sampling event detected dissolved
benzene and naphthalene concentrations above established 2L Standards in the groundwater
samples collected from monitoring wells MW-12R and MW-14R. A dissolved
1,2-Dichloroethane concentration was also detected above its established 2L Standard in the
groundwater sample collected from monitoring well MW-14R;
• Monitoring well MW-16 could not be located during the January 2023 sampling event;
• It appears dissolved target compound concentrations have decreased significantly at the site
since 2004, and;
• Based on the most recent groundwater analytical data, the dissolved contaminant mass at the
site was estimated to cover an area approximately 2,100 ft2 resulting in a calculated benzene
mass of 0.060237 kg. To date, the benzene mass has decreased at the site by approximately
50.97%.

Based on the current groundwater analytical results, ATC recommends continued annual
groundwater sampling activities of select monitoring wells to monitor natural attenuation
activities. The next groundwater sampling event will be scheduled during January 2024.

TABLES
TABLE 1
UST OWNER/OPERATOR AND SYSTEM INFORMATION
FORMER MARGARET MURPHY STATION
2874 SOUTH N.C. HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 22674
UST ID
Number
Current/Last
Contents
Previous
Contents
Capacity
(gallons)Construction Details Tank Dimensions
Description of
Associated Piping
and Pumps
Date Tank
Installed
Status of
UST
Was Release
Associates
with the UST
System?
1 Gasoline None 550 Unknown Unknown Unknown Unknown Removed Yes
2 Gasoline None 550 Unknown Unknown Unknown Unknown Removed Yes
3 Unknown None 550 Unknown Unknown Unknown Unknown Removed Yes
4 Unknown None 550 Unknown Unknown Unknown Unknown 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
Rose Hill NC 28458
Margaret Murphy Station Unknown to 1994
Street Address
2874 South N.C. Highway 11
Telephone Number
Unknown
Street Address
123 Shipyard Boulevard
Telephone Number
910-343-1991
Name of Operator Dates of Operation (MM/DD/YY to MM/DD/YY)
None associated with this site
0-001148
Name of Owner Dates of Operation (MM/DD/YY to MM/DD/YY)
Cenama, Inc. (Formerly Worsley Companies)Unknown to 1994
TABLE 2
ADJACENT PROPERTY OWNER INFORMATION
MARGARET MURPHY STATION
2874 SOUTH N.C. HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 22674
Property Property Owner Property Owner Address
Property Description/
Zoning Property Address
Site:
Margaret Murphy Station
Vernon Rouse, Owen Rouse,
and Eva Rouse Lennon
1533 W. Charity Road
Rose Hill, NC 28458 Undeveloped 2874 South N.C. Highway 11

South of the Site:
Farmland and Residence James and Norma Lennon 121 Murphy Store Road
Rose Hill, NC 28458 Farmland and Residence 121 Murphy Store Road
West of the Site:
Farmland
Vernon Rouse, Owen Rouse,
and Eva Rouse Lennon
1533 W. Charity Road
Rose Hill, NC 28458 Farmland Not Applicable
North of the Site:
Farmland and Residence Donald R. Teachey 129 Pasture Branch Road
Rose Hill, NC 28458 Farmland and Residence 129 Pasture Branch Road
East of the Site:
Farmland
Vernon Rouse, Owen Rouse,
and Eva Rouse Lennon
1533 W. Charity Road
Rose Hill, NC 28458 Farmland Not Applicable
TABLE 3
WATER SUPPLY WELL INFORMATION
MARGARET MURPHY STATION
2874 SOUTH N.C. HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 22674
PIN NumberWell IDWell OwnerAddressConnected to Public WaterWater Supply Well PresentWater Supply Well UseDistance for source area release (feet)331800761251 1
Vernon Rouse, Owen Rouse,
and Eva Rouse Lennon
1533 W. Charity Road
Rose Hill, NC 28458
2874 South N.C. Highway 11 Yes Yes Inoperable 90
331800766572 2
Michael T. Teachey
115 Pasture Branch Road
Rose Hill, NC 28458
115 Pasture Branch Road No Yes Potable 450
331800769850 3
Donald and Vivian Teachey
129 Pasture Branch Road
Rose Hill, NC 28458
129 Pasture Branch Road No Yes Potable 800
331800764640 4
James and Annette Casey
2845 N.C. Highway 11
Rose Hill, NC 28458
2845 N.C. Hwy 11 No Yes Potable 555
331800775216 5
Donald and Vivian Teachey
129 Pasture Branch Road
Rose Hill, NC 28458
2827 Hwy 11 No Yes Potable 1,000
331800664726 6
Marshall Teachey
168 Murphy Store Road
Rose Hill, NC 28458
168 Murphy Store Road Yes Yes Non-Potable 1,000
TABLE 4
MONITORING WELL CONSTRUCTION DETAILS
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
MW-1R 5/19/2004 2 2-12 12
MW-2 11/15/1994 2 5-15 15
MW-3R 5/21/2004 2 2-12 12
MW-4 Unknown 2 5-15 15
MW-5 Unknown 2 5-15 15
MW-6 Unknown 2 2-10 10
MW-7 Unknown 2 2-10 10
MW-8 Unknown 2 2-10 10
MW-9 Unknown 2 2-10 10
MW-10 2/11/2002 2 1-11 11
MW-11R 5/21/2004 2 2-12 12
MW-12R 5/21/2004 2 2-12 12
MW-13R 5/21/2004 2 2-12 12
MW-14R 5/21/2004 2 2-12 12
MW-15 6/10//02 2 1-11 11
MW-16 6/10/2002 2 1-11 11
MW-17 6/10/2002 2 1-11 11
MW-18 6/10/2002 2 1-11 11
MW-19 7/19/2002 2 2.5-12.5 12.5
MW-20 7/19/2002 2 1-11 11
TW-1R 5/19/2004 6/2 20-25 25
Note:
1. Total well depths measured from top of casing.
Monitoring
Well ID Date Installed
Well Casing
Diameter
(Inches)
Screened
Interval
(feet)
Depth of Well
(feet)
TABLE 5
GROUNDWATER ELEVATIONS AND HISTORICAL DATA
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
Well
No.Date Top of Casing
Elevation (Feet)
Depth to Water
(Feet)
Groundwater
Elevation
(Feet)
12/20/2012 6.25 92.07
12/4/2014 4.96 93.36
2/9/2017 4.73 93.59
12/11/2018 1.07 97.25
1/22/2020 4.35 93.97
2/2/2021 2.04 96.28
2/7/2022 4.00 94.32
1/18/2023
12/20/2012 6.48 92.57
12/4/2014 5.22 93.83
2/9/2017 3.99 95.06
12/11/2018 2.08 96.97
1/22/2020
2/2/2021
2/7/2022
1/18/2023
12/20/2012 4.98 93.35
12/4/2014 4.01 94.32
2/9/2017 3.68 94.65
12/11/2018 0.05 98.28
1/22/2020 3.37 94.96
2/2/2021
2/7/2022
1/18/2023
12/20/2012 7.23 91.96
12/4/2014 5.82 93.37
2/9/2017 5.00 94.19
12/11/2018 2.24 96.95
1/22/2020 5.12 94.07
2/2/2021
2/7/2022
1/18/2023
12/20/2012 5.76 92.49
12/3/2014 5.07 93.18
2/9/2017
12/11/2018
1/22/2020
2/21/2022
2/7/2022
1/18/2023
6/3/2004
6/3/2009
1/13/2010
12/20/2012 5.23 92.54
12/3/2014 4.02 93.75
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
12/20/2012 4.99 91.53
12/3/2014 4.00 92.52
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/20221/18/2023
Notes:
1. Elevations are referenced to an arbitrary on-site benchmark of 100.00 feet.
2. Data prior to 2012 is on file in previous reports at NCDEQ.
Not Located
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Not Located
Not Located
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
MW-4 99.19
MW-3R 98.33
Well Not Measured
MW-6 Not Surveyed
MW-5 98.25
Well Not Measured
MW-1R 98.32
Well Not Measured
MW-2 99.05
MW-8 96.52
MW-7 97.77
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Page 5 of 21
TABLE 5
GROUNDWATER ELEVATIONS AND HISTORICAL DATA
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
Well
No.Date Top of Casing
Elevation (Feet)
Depth to Water
(Feet)
Groundwater
Elevation
(Feet)
MW-1R 98.32
12/20/2012 4.63 93.60
12/3/2014 3.92 94.31
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
6/3/2004
6/3/2009
1/13/2010
12/20/2012 7.03 92.50
12/4/2014 5.62 93.91
2/9/2017 4.88 94.65
12/11/2018 2.62 96.91
1/22/2020 4.98 94.55
2/2/2021 2.69 96.84
2/7/2022 3.90 95.63
1/18/2023 8.87 90.66
12/20/2012 6.46 92.15
12/4/2014 5.04 93.57
2/9/2017 3.00 95.61
12/11/2018 0.00 98.61
1/22/2020 4.53 94.08
2/2/2021 1.32 97.29
2/7/2022 2.89 95.72
1/18/2023 8.33 90.28
12/20/2012 6.34 92.47
12/4/2014 4.96 93.85
2/9/2017 4.19 94.62
12/11/2018 2.01 96.80
1/22/2020 4.45 94.36
2/2/2021 2.44 96.37
2/7/2022 4.88 93.93
1/18/2023
12/20/2012 6.72 91.98
12/4/2014 5.36 93.34
2/9/2017 4.32 94.38
12/11/2018 2.09 96.61
1/22/2020 4.84 93.86
2/2/2021 2.89 95.81
2/7/2022 4.93 93.77
1/18/2023 8.26 90.44
12/20/2012 8.08 92.63
12/3/2014 6.67 94.04
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
Notes:
1. Elevations are referenced to an arbitrary on-site benchmark of 100.00 feet.
2. Data prior to 2012 is on file in previous reports at NCDEQ.
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
MW-12R 98.61
MW-14R
MW-15 100.71
MW-11R 99.53
MW-9 98.23
Well Not Measured
MW-10
Not Located
Not Located
Not Located
MW-13R
Well Not Measured
Well Not Measured
98.70
98.91
98.81
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Page 6 of 21
TABLE 5
GROUNDWATER ELEVATIONS AND HISTORICAL DATA
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
Well
No.Date Top of Casing
Elevation (Feet)
Depth to Water
(Feet)
Groundwater
Elevation
(Feet)
MW-1R 98.32
12/20/2012 7.56 93.42
12/4/2014 6.21 94.77
2/9/2017 5.33 95.65
12/11/2018 3.11 97.87
1/22/2020 5.42 95.56
2/2/2021 3.59 97.39
2/7/2022 5.51 95.47
1/18/2023
12/20/2012
12/4/2014 5.68 94.09
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
12/20/2012 8.01 92.28
12/4/2014 6.37 93.92
2/9/2017 5.44 94.85
12/11/2018 2.88 97.41
1/22/2020 5.58 94.71
2/2/2021
2/7/2022
1/18/2023
12/20/2012 1.54 96.98
12/4/2014 1.23 97.29
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
12/20/2012 1.79 96.89
12/4/2014 1.44 97.24
2/9/2017 1.48 97.20
12/11/2018 0.56 98.12
1/22/2020 1.63 97.05
2/2/2021
2/7/2022
1/18/2023
12/20/2012 6.92 91.95
12/3/2014 5.03 93.84
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/20221/18/2023
Notes:
1. Elevations are referenced to an arbitrary on-site benchmark of 100.00 feet.
2. Data prior to 2012 is on file in previous reports at NCDEQ.
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
Could Not Locate
MW-17 99.77
MW-16 100.98
98.68
MW-19 98.52
MW-18 100.29
Well Not Measured
Well Not Measured
Well Not Measured
98.87
MW-20
TW-1R
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Could Not Locate
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Page 7 of 21
TABLE 6
GROUNDWATER ANALYTICAL RESULTS
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
Well ID
Date
Collected
MW-11R 1/18/2023 <0.50 <0.50 <0.50 0.51 0.51 <0.50 <0.50 0.26J 41.4 <0.20 <0.50 3.2 0.26J 0.48J 0.45J 1.7 0.64 1.1
MW-12R 1/18/2023 7.0 8.6 30.9 52.1 98.6 <0.50 <0.50 19.0 296J <0.20 <0.50 53.5 15.5 0.85 <0.50 12.9 0.49J 4.5
MW-14R 1/18/2023 731 21.0 340 473 1,565.0 <5.0 <5.0 118 79.5J 2.5 2.0J 214 44.4 4.2J <5.0 43.1 1.8J 16.0
MW-16 1/18/2023
1 600 600 500 NE 20 70 6 6,000 0.4 5 400 400 70 70 70 25 70
5,000 260,000 80,000 50,000 NE 20,000 70,000 6,000 6,000,000 400 5,000 28,500 24,100 5,900 14,750 26,100 11,700 30,500
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 2L Standard (2L).
4. NCDEQ = North Carolina Department of Environmental Quality.
5. GCL = Gross Contaminantion Level.
6. NE = Not Established.
7. MTBE = Methyl Tertiary Butyl Ether.
8. Gross Contamination Levels for Groundwater are referenced in the Guidelines for Assessment
and Corrective Action, November 2008, updated January 2010.
9. BTEX = Benzene, Toluene, Ethylbenzene, Total Xylenes
10. J denotes compound concentration estimated by project laboratory.n-PropylbenzeneMethylene ChlorideGCL (mg/l)MTBE2L Standard (mg/l)1,2,4-TrimethylbenzeneWell Could Not Be LocatedNaphthaleneAnalytical Method
Contaminant of
Concern
BenzeneTolueneEthylbenzeneIsopropyl ethern-Butylbenzene1,3,5-TrimethylbenzeneTotal XylenesEPA Method 6200B
IsopropylbenzeneTotal BTEXp-Isopropyltoluenetert-ButylbenzeneAcetone1,2-Dichloroethane
TABLE 7
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
BenzeneTolueneEthylbenzeneTotal XylenesMTBEIPENaphthaleneWell ID Sample Date ug/l ug/l ug/l ug/l ug/l ug/l ug/l
06/03/04 2,440 52,600 1,270 8,840 2,560 887 --
06/03/09 826 51,900 <380 2,610 <612 <506 <580
01/13/10 1,140 36,100 878 4,650 <50.0 <50.0 207
07/12/10 <2,500 73,100 535 3,850 <5,000 <2,500 <2,500
12/29/2010 180 32,000 930 5,200 <10 <5 490
12/20/2012 150 16,000 540 2,710 <800 140 <1,000
12/4/2014 38.4J 3,160 102 352 <31.2 <31.2 189J
2/9/2017 0.54 1.9 3.5 4.41 <0.50 0.41J <0.50
12/11/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
1/22/2020 0.86 1.5 3.8 2.4 <0.50 <0.50 0.54
2/2/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 0.98
2/7/2022 0.61 0.33J 3.1 1.8J <0.50 <0.50 0.58
1/18/2023
11/16/1994 <1 <1 <1 4 <1 <1 <10
3/5/2001 <0.5 <0.5 <0.5 <0.5 <10 <10 --
2/15/2002 <0.5 1.2 <0.5 0.7 <10 <10 <5
12/5/2002 <1 <1 <1 <4 <2 <1 --
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
01/13/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
12/29/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012 <1 <1 <1 <1 <8 <1 <10
12/4/2014 <0.25 <0.25 <0.25 <0.75 <0.25 <0.25 <1.0
2/9/2017 <0.50 0.50 0.16J 0.48J <0.50 <0.50 <0.50
12/11/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
1/22/2020 <0.50 <0.50 <0.50 0.94 <0.50 <0.50 <0.50
2/2/2021
2/7/2022
1/18/2023
6/3/2004 26.9 37.7 48.4 250 65.6 234 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
1/13/2010 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
7/12/2010 0.416J 2.04 <1.00 <4.00 <2.00 <1.00 0.369J
12/29/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012 <1 <1 <1 <1 <8 <1 <10
12/4/2014 <0.25 <0.25 <0.25 <0.75 <0.25 <0.25 <1.0
2/9/2017 0.19J 1.9 0.60 2.01J <0.50 <0.50 <0.50
12/11/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
1/22/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
2/2/2021
2/7/2022
1/18/2023
1 600 600 500 20 70 6
5,000 260,000 80,000 50,000 20,000 70,000 6,000
Notes:
1. "<" or ND = Not detected at or above the laboratory detection limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion.
3. Concentrations in bold print equal or exceed the NCDEQ 2L Standard (2L).
4. NCDEQ = North Carolina Department of Environmental Quality.
5. GCL = Gross Contaminantion Level.
6. MTBE = Methyl Tertiary Butyl Ether.
7. J denotes concentration estimated by laboratory.
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Contaminant of Concern
NCDENR 2L Standard
GCL
MW-3R
MW-2
MW-1R
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Page 9 of 21
TABLE 7
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
BenzeneTolueneEthylbenzeneTotal XylenesMTBEIPENaphthaleneWell ID Sample Date ug/l ug/l ug/l ug/l ug/l ug/l ug/l
Contaminant of Concern
1/12/1995 BQL BQL BQL BQL BQL BQL BQL
3/5/2001 <0.5 <0.5 <0.5 <0.5 <10 <10 --
2/15/2002 <0.5 1.1 <0.5 0.8 <10 <10 <5
12/5/2002 <1 <1 <1 <4 <2 <1 --
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
01/13/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
07/12/10 <1.00 <1.00 <1.00 <4.00 <2.00 <1.00 <1.00
12/29/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012 <1 <1 <1 <1 <8 <1 <10
12/4/2014 <0.25 <0.25 <0.25 <0.75 <0.25 <0.25 <1.0
2/9/2017 0.34J 2.7 0.67 2.47J <0.50 <0.50 <0.50
12/11/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
1/22/2020 <0.50 1.8 0.68 2.1 <0.50 <0.50 <0.50
2/2/2021
2/7/2022
1/18/2023
1/12/1995 170 1,010 60 310 110 2 <5
3/5/2001 0.5 1.7 1.8 2.2 <10 <10 --
2/15/2002 <0.5 <0.5 <0.5 <0.5 <10 <10 <5
12/5/2002 <1 <1 <1 <4 <2 <1 --
6/3/2004 5.6 240 62.3 281 <50 <50 --
6/3/2009 <5.0 16.5 52.8 93.2 <10 <5.0 14.0
01/13/10 <1.0 <1.0 4.2 7.8 <1.0 <1.0 <2.0
12/29/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012
12/3/2014
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
1/12/1995 BQL BQL BQL BQL BQL BQL BQL
6/3/2004
6/3/2009
1/13/2010
12/29/2010
1/12/1995 BQL 60 BQL 220 BQL 40 35
3/5/2001 <0.5 <0.5 <0.5 <0.5 <10 <10 --
2/15/2002 <0.5 <0.5 <0.5 <0.5 <10 <10 <5
12/5/2002 <1 <1 <1 <4 <2 <1 --
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
01/13/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
12/29/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012
12/3/2014
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
1 600 600 500 20 70 6
5,000 260,000 80,000 50,000 20,000 70,000 6,000
Notes:
1. "<" or ND = Not detected at or above the laboratory detection limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion.
3. Concentrations in bold print equal or exceed the NCDEQ 2L Standard (2L).
4. NCDEQ = North Carolina Department of Environmental Quality.
5. GCL = Gross Contaminantion Level.
6. MTBE = Methyl Tertiary Butyl Ether.
7. J denotes concentration estimated by the laboratory.
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Sampled
MW-6
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Sampled
Not Scheduled to be Sampled
Not Scheduled to be SampledMW-7
NCDENR 2L Standard
GCL
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
MW-4
MW-5
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Sampled
Not Sampled
Page 10 of 21
TABLE 7
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
BenzeneTolueneEthylbenzeneTotal XylenesMTBEIPENaphthaleneWell ID Sample Date ug/l ug/l ug/l ug/l ug/l ug/l ug/l
Contaminant of Concern
3/16/1995 BQL BQL BQL BQL BQL BQL BQL
3/5/2001 <0.5 <0.5 <0.5 <0.5 <10 <10 --
2/15/2002 <0.5 <0.5 <0.5 <0.5 <10 <10 <5
12/5/2002 <1 <1 <1 <4 <2 <1 --
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
01/13/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
12/29/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012
12/3/2014
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
3/16/1995 BQL BQL BQL BQL BQL BQL BQL
3/5/2001 <0.5 <0.5 <0.5 <0.5 <10 <10 --
2/15/2002 <0.5 <0.5 <0.5 <0.5 <10 <10 <5
12/5/2002 <1 <1 <1 <4 <2 <1 --
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
01/13/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
12/29/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012
12/3/2014
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
2/15/2002 <2.5 4.9 43 99 <50 <50 28
12/5/2002 <1 <1 3 21 <2 <1 --
6/3/2004
6/3/2009
1/13/2010
12/28/2010
6/3/2004 57.9 684 89 418 <200 <200 --
6/3/2009 <5.0 9.88 57.9 87.0 <10 <5.0 43.0
1/13/2010 <1.0 <1.0 40.1 50.5 <1.0 <1.0 22.6
7/12/2010 3.63 5.22 42.6 31.066J <2.00 <1.00 16.1
12/29/2010 2.2 <0.2 65 29.5 <0.2 <0.1 23
12/20/2012 2.9 <1 31 25.2 <8 4.2 26
12/4/2014 0.85 <0.25 7.0 2.6 <0.25 <0.25 1.4J
2/9/2017 1.1 0.62 8.2 8.46J <0.50 <0.50 2.5
12/11/2018 <0.50 <0.50 0.54 <0.50 <0.50 <0.50 <0.50
1/22/2020 <0.50 <0.50 3.3 6.9 <0.50 <0.50 0.79
2/2/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 1.5
2/7/2022 1.3 2.6 3.7 7.8 <0.50 <0.50 1.2
1/18/2023 <0.50 <0.50 <0.50 0.51 <0.50 <0.50 0.26J
1 600 600 500 20 70 6
5,000 260,000 80,000 50,000 20,000 70,000 6,000
Notes:
1. "<" or ND = Not detected at or above the laboratory detection limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion.
3. Concentrations in bold print equal or exceed the NCDEQ 2L Standard (2L).
4. NCDEQ = North Carolina Department of Environmental Quality.
5. GCL = Gross Contaminantion Level.
6. MTBE = Methyl Tertiary Butyl Ether.
7. J denotes concentration estimated by the laboratory.
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
MW-10
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Sampled
Not Sampled
Not Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
MW-8
GCL
NCDENR 2L Standard
MW-11R
MW-9
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Page 11 of 21
TABLE 7
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
BenzeneTolueneEthylbenzeneTotal XylenesMTBEIPENaphthaleneWell ID Sample Date ug/l ug/l ug/l ug/l ug/l ug/l ug/l
Contaminant of Concern
6/3/2004 2,450 19,400 1,620 10,600 <2,500 <2,500 --
6/3/2009 <400 8,190 1,720 8,600 <800 <400 403
1/13/2010 336 6,240 1,470 5,740 <10.0 <10.0 507
7/12/2010 266 6,280 1,670 8,340 <500 <250 400
12/29/2010 70 1,300 370 1,900 <4 <2 230
12/20/2012 450 3,600 1,200 5,280 <160 86 590
12/4/2014 241 4,290 1,080 5,320 <6.2 <6.2 393
2/9/2017 200 240 610 1,968 <10 <10 120
12/11/2018 53.7 29.1 161 317 <0.50 <0.50 45.4
1/22/2020 113 154 <0.50 26.6 <0.50 <0.50 81.3
2/2/2021 0.96 1 7 13.6 <0.50 <0.50 2.9
2/7/2022 148 366 529 1,350 <0.50 <0.50 79.6
1/18/2023 7.0 8.6 30.9 52.1 <0.50 <0.50 19.0
6/3/2004 <50 390 481 2,580 <500 <500 --
6/3/2009 <20 <20 95.1 235 <40 <20 31.6
1/13/2010 <1.0 2.6 20.4 58.5 <1.0 <1.0 9.0
7/12/2010 <16.0 45.3 296 891 <32.0 <16.0 101
12/29/2010 <0.1 25 250 770 <0.2 <0.1 91
12/20/2012 5.7 11 100 303 10 22 51
12/4/2014 0.45J 10.2 122 289 <0.25 <0.25 27.8
2/9/2017 0.54J 15 62 103.8 <1.0 <1.0 6.5
12/11/2018 <0.50 <0.50 2.1 1.6 <0.50 <0.50 <0.50
1/22/2020 <2.5 6.9 114 274 <2.5 <2.5 7.2
2/2/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
2/7/2022 0.36J 0.38J 0.24J 0.52J <0.50 <0.50 <0.50
1/18/2023
6/3/2004 3,620 10,500 898 5,200 <2,500 <2,500 --
6/3/2009 2,620 7,890 798 10,260 <800 <400 413
1/13/2010 1,120 3,000 571 1,880 90.4 <5.0 278
7/12/2010 2,070 5,900 704 2,319 <500 <250 144
12/29/2010 1,200 12,000 410 1,860 64 5.3 160
12/20/2012 2,000 7,500 740 3,200 <160 69 330
12/4/2014 1,800 6,800 711 3,065 36.1 <12.5 235
2/9/2017 2,200 6,600 890 3,090 32 <25 210
12/11/2018 7.7 9.0 7.1 18.3 <0.50 <0.50 2.1
1/22/2020 <0.50 <0.50 <0.50 762 5.9 1.1 65.6
2/2/2021 3.3 1.4 3.4 9.1 <0.50 <0.50 1.2
2/7/2022 1,820 1,690 730 2,200 <0.50 3.8 131
1/18/2023 731 21.0 340 473 <5.0 <5.0 118
6/12/2002 <0.5 <0.5 <0.5 <0.5 <5 <5 <1
12/5/2002 <1 <1 <1 <4 <2 <1 --
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
1/13/2010 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
12/28/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012
12/3/2014
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
1 600 600 500 20 70 6
5,000 260,000 80,000 50,000 20,000 70,000 6,000
Notes:
1. "<" or ND = Not detected at or above the laboratory detection limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion.
3. Concentrations in bold print equal or exceed the NCDEQ 2L Standard (2L).
4. NCDEQ = North Carolina Department of Environmental Quality.
5. GCL = Gross Contaminantion Level.
6. MTBE = Methyl Tertiary Butyl Ether.
7. J denotes concentration estimated by laboratory.
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
NCDENR 2L Standard
Not Scheduled to be Sampled
Not Scheduled to be Sampled
GCL
MW-15
MW-14R
MW-13R
MW-12R
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Page 12 of 21
TABLE 7
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
BenzeneTolueneEthylbenzeneTotal XylenesMTBEIPENaphthaleneWell ID Sample Date ug/l ug/l ug/l ug/l ug/l ug/l ug/l
Contaminant of Concern
6/12/2002 3.5 4.5 8.8 21 <5 12 3.9
12/5/2002 <1 <1 <1 <4 <2 <1 --
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
1/13/2010 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
12/28/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012 <1 <1 <1 <1 <8 <1 <10
12/4/2014 <0.25 <0.25 <0.25 <0.75 <0.25 <0.25 <1.0
2/9/2017 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50
12/11/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
1/22/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
2/2/2021 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
2/7/2022 3.7 6.0 5.7 14.3 <0.50 <0.50 6.4
1/18/2023
6/12/2002 <0.5 <0.5 <0.5 <0.5 <5 <5 <1
12/5/2002 <1 <1 <1 <4 <2 <1 --
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
1/13/2010 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
12/28/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012
12/3/2014
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
6/12/2002 <0.5 <0.5 <0.5 <0.5 <5 <5 <1
12/5/2002 <1 <1 <1 <4 <2 <1 --
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
1/13/2010 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
7/12/2010 <1.00 <1.00 <1.00 <4.00 <2.00 <1.00 0.345J
12/28/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012 <1 <1 <1 <1 <8 <1 <10
12/4/2014 <0.25 <0.25 <0.25 <0.75 <0.25 <0.25 <1.0
2/9/2017 <0.50 0.47J 0.19J 0.56J <0.50 <0.50 <0.50
12/11/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
1/22/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
2/2/2021
2/7/2022
1/18/2023
7/22/2002 <1 <1 <1 <4 <2 <1 <1
12/5/2002 <1 <19 <1 <4 <2 <1 --
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
1/13/2010 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
12/28/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012
12/3/2014
2/9/2017
12/11/2018
1/22/2020
2/2/2021
2/7/2022
1/18/2023
1 600 600 500 20 70 6
5,000 260,000 80,000 50,000 20,000 70,000 6,000
Notes:
1. "<" or ND = Not detected at or above the laboratory detection limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion.
3. Concentrations in bold print equal or exceed the NCDEQ 2L Standard (2L).
4. NCDEQ = North Carolina Department of Environmental Quality.
5. GCL = Gross Contaminantion Level.
6. MTBE = Methyl Tertiary Butyl Ether.
7. J denotes concentration estimated by the laboratory.
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Could Not Locate
MW-18
MW-17 Not Scheduled to be Sampled
Not Scheduled to be Sampled
NCDENR 2L Standard
GCL
Not Scheduled to be SampledMW-19
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
MW-16
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Could Not Locate
Not Scheduled to be Sampled
Page 13 of 21
TABLE 7
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
BenzeneTolueneEthylbenzeneTotal XylenesMTBEIPENaphthaleneWell ID Sample Date ug/l ug/l ug/l ug/l ug/l ug/l ug/l
Contaminant of Concern
7/22/2002 <1 <1 <1 <4 <2 <1 <1
12/5/2002 <1 <1 <1 <4 <2 <1 --
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 <1.0
1/13/2010 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
12/28/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012 <1 <1 <1 <1 <8 <1 <10
12/4/2014 <0.25 <0.25 <0.25 <0.75 <0.25 <0.25 <1.0
2/9/2017 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50
12/11/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
1/22/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
2/2/2021
2/7/2022
1/18/2023
6/3/2004 <0.5 <0.5 <0.5 <0.5 <5.0 <5.0 --
6/3/2009 <1.0 <1.0 <1.0 <4.0 <2.0 <1.0 1.1
1/13/2010 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0
7/12/2010 <1.00 <1.00 <1.00 <4.00 <2.00 <1.00 0.564J
12/29/2010 <0.1 <0.2 <0.1 <0.4 <0.2 <0.1 <0.1
12/20/2012
12/3/2014
2/9/2017
12/11/2018
12/11/2018
2/2/2021
2/7/2022
1/18/2023
1 600 600 500 20 70 6
5,000 260,000 80,000 50,000 20,000 70,000 6,000
Notes:
1. "<" or ND = Not detected at or above the laboratory detection limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion.
3. Concentrations in bold print equal or exceed the NCDEQ 2L Standard (2L).
4. NCDEQ = North Carolina Department of Environmental Quality.
5. GCL = Gross Contaminantion Level.
6. MTBE = Methyl Tertiary Butyl Ether.
7. J denotes concentration estimated by the laboratory.
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Not Scheduled to be Sampled
GCL
NCDENR 2L Standard
Not Scheduled to be Sampled
MW-20
Not Scheduled to be Sampled
Not Scheduled to be Sampled
TW-1R
Not Scheduled to be Sampled
Not Scheduled to be Sampled
Page 14 of 21
TABLE 8
SELECT NATURAL ATTENUATION MEASUREMENTS

FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
Monitoring
Well ID Date pH (unitless)
Dissolved
Oxygen
(mg/L)
Specific Conductivity (µs/cm2)
Temperature
(Celcius)ORP (Eh)
12/11/2018 6.90 1.71 182.1 16.34 0.226
1/22/2020 7.11 0.78 136 16.58 -44.4
2/2/2021 7.34 2.18 205 15.48 253.7
2/7/2022 6.69 1.33 164 15.98 162.4
1/18/2023
12/11/2018 6.23 4.03 64.5 18.99 0.278
1/22/2020 6.49 0.40 24 17.17 -26.7
2/2/2021
2/7/2022
1/18/2023
12/11/2018 6.29 -0.13 47.6 17.50 0.138
1/22/2020 5.98 0.44 98 15.28 27.0
2/2/2021
2/7/2022
1/18/2023
12/11/2018 6.27 5.83 112.7 16.81 0.249
1/22/2020 6.38 6.03 192 16.11 0.4
2/2/2021
2/7/2022
1/18/2023
12/11/2018 5.70 0.31 48.1 20.44 0.206
1/22/2020 6.21 0.13 238 18.18 -20.5
2/2/2021 6.77 1.36 288 16.49 110.8
2/7/2022 6.01 0.23 236 17.18 -29.3
1/18/2023 5.96 1.03 157.7 19.3 330.5
12/11/2018 6.06 -2.35 7.1 15.82 0.477
1/22/2020 6.58 0.25 199 16.90 -37.2
2/2/2021 6.76 2.42 88 14.32 67.3
2/7/2022 6.43 0.56 219 15.81 -43.7
1/18/2023 6.37 1.07 141.6 18.6 105.3
12/11/2018 6.80 0.19 -40.6 20.25 0.051
1/22/2020 6.35 0.20 191 17.59 3.6
2/2/2021 6.51 4.53 286 14.63 143.2
2/7/2022 6.03 0.47 179 16.43 5.8
1/18/2023
12/11/2018 6.12 0.26 14.9 18.44 0.089
1/22/2020 6.09 0.28 192 16.18 -16.8
2/2/2021 6.53 1.56 93 15.07 100.7
2/7/2022 6.11 0.51 173 15.83 -14.9
1/18/2023 6.03 0.30 322 18.10 83.0
12/11/2018 6.77 2.93 176.8 19.03 0.270
1/22/2020 6.86 4.92 174 17.26 -38.1
2/2/2021 6.58 5.43 266 15.64 154.9
2/7/2022 6.49 5.03 161 16.21 -35.1
1/18/2023
12/11/2018 6.67 5.97 118.3 19.10 0.376
1/22/2020 6.54 6.71 371 16.55 -48.1
2/2/2021
2/7/2022
1/18/2023
12/11/2018 5.61 2.02 198.7 18.15 0.080
1/22/2020 6.48 0.96 65 15.70 24.5
2/2/2021
2/7/2022
1/18/2023
MW-1R
MW-2
MW-3R
MW-4
MW-11R
MW-12R
Not Measured
Not Measured
Not Measured
Not Measured
Not Measured
Not Measured
Not Measured
Could Not Locate
Not Measured
Not Measured
Not Measured
Not Measured
Not Measured
MW-13R
MW-14R
MW-16
MW-18
MW-20
Not Measured
Not Measured
Not Measured
Not Measured
Not Measured
TABLE 9
CONTAMINANT MASS CALCULATIONS (Benzene)
FORMER MARGARET MURPHY STATION
2874 SOUTH N.C. HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 22674
Year Area (FT^2)*Thickness (FT) Effective Porosity Volume (FT^3) Volume (L)
Benzene
Concentration
(ug/L**)Mass (kg)
2004 10,200 6 0.37 22,644.00 641,162 8,560.4 5.4886
2012 8,400 6 0.37 18,648.00 528,016 2,608.6 1.3774
2014 4,900 6 0.37 10,878.00 308,009 2,079.4 0.6405
2021 100 6 0.37 222.00 6,286 3.3 0.000021
2022 25,000 7.58 0.37 70,115.00 1,985,297 1,973.0 3.916991
2023 2,100 3.71 0.37 2,882.67 81,622 738.0 0.060237
Notes:
Area (FT^2)*Thickness (FT)Density (gm/cm^3)Volume (FT^3)Volume (cm^3)Mass (kg)
Benzene
Concentration
(mg/kg)**
Mass Benzene
(kg)
----------------
Notes:
* Area based on groundwater impact above 2L Standard
** 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)**
Mass Benzene
(kg)
4,800 5 0.873 24,000 679,603,200 593,294 8.892 5.28
Notes:
* Area based on 2010 soil analytical results (benzene concentration exceeds STGW-MSCC)
** Smear zone average for soil borings in area above 2L Standard
** 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 exceeding 2L Standard
** Sum of benzene concentrations in source area exceeding 2L Standard
TABLE 10
CONTAMINANT MASS REMOVAL (Benzene)
FORMER MARGARET MURPHY STATION
2874 SOUTH N.C. HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 22674
Initial Mass Estimate
Initial
Baseline
(2004)
Projected Mass Reduction %0
Soil Source Zone Mass (kg)NM
Smear Source Mass (kg)5.28
Groundwater Zone Mass (kg)5.4886
Total Mass: Baseline/Milestone (kg)10.7686
2012 2014 2021 2022 2022
Measured Mass
Soil Source Zone (kg)NM NM NM NM NM
Smear Source Zone (kg)NM NM NM NM NM
Groundwater Zone (kg)1.3774 0.6405 0.000021 3.916991 0.060237
Removed Mass
Excavated From Soil/Smear (kg)NM NM NM NM NM
Extracted as Vapor/Gas (kg)NM NM NM NM NM
Extracted as Liquid (kg)4.11 4.85 5.5 1.6 5.5
Total Mass Removed (kg)4.11 4.85 5.5 1.6 5.5
Revised Total Mass (kg)6.66 5.92 5.28 9.20 5.28
Estimated Reduction Rate 38.18%45.02%50.97%14.59%50.97%
Reference Milestone (Label)Baseline Baseline Baseline Baseline Baseline
Reference Milestone (Value)10.7686 10.7686 10.7686Total Mass: Baseline/Milestone (kg)10.7686
Reduction Progress vs Milestone NM NM NM NM NM
Evaluation of Change in Benzene Contaminant Mass
Milestone Sampling Measurement Event Dates

FIGURES
2725 E. Millbrook Road, Ste 121
Raleigh, NC 27604
[phone]
PROJECT NO: Z045000214
DATE: 1/2011 REVIEWED BY: EAA
MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY,
NORTH CAROLINA
SOURCE: 1982 TOPOGRAPHIC MAP -MSRMAPS.COM.
SCALE: SEE ABOVE
SITE
FIGURE 1: SITE TOPOGRAPHIC MAP
MW-20MW-19MW-16MW-15MW-17MW-18MW-2MW-10MW-11RMW-13RTW-1RMW-12RMW-1RMW-14RMW-3RMW-4MW-5MW-9RESIDENCEMW-7FORMERWOODBUILDING
1,500' RADIUS
1,000' RADIUS500' RADIUSSITE23456
MW-20MW-19MW-16MW-15MW-17MW-18MW-2MW-10MW-11RMW-13RTW-1RMW-12RMW-1RMW-14RMW-3RMW-4MW-5MW-9RESIDENCEMW-7FORMERWOODBUILDING90.28NL90.
6
90.
5
90.
490.6690.44
MW-20MW-19MW-16MW-15MW-17MW-18MW-2MW-10MW-11RMW-13RTW-1RMW-12RMW-1RMW-14RMW-3RMW-4MW-5MW-9RESIDENCEMW-7FORMERWOODBUILDING
FORMER MARGARET MURPHY STATION
2874 SOUTH N.C. HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 22674
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
0
500
1,000
1,500
2,000
2,500
3,000
06/03/04 06/03/09 01/13/10 07/12/10 12/29/2010 12/20/2012 12/4/2014 2/9/2017 12/11/2018 1/22/2020 2/2/2021 2/7/2022 1/18/2023 Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
Figure 6
MW-1R: Dissolved Benzene Concentrations through Time versus Depth to Water
Dissolved Benzene
Depth to Water
N
O
T
M
E
A
S
U
R
E
D
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
0
10
20
30
40
50
60
70
6/3/2004 6/3/2009 1/13/2010 7/12/2010 12/29/2010 12/20/2012 12/4/2014 2/9/2017 12/11/2018 1/22/2020 2/2/2021 2/7/2022 1/18/2023 Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
Figure 7
MW-11R: Dissolved Benzene Concentrations through Time versus Depth to Water
Dissolved Benzene
Depth to Water
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDEQ INCIDENT NO. 22674
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
0
500
1,000
1,500
2,000
2,500
3,000
6/3/2004 6/3/2009 1/13/2010 7/12/2010 12/29/2010 12/20/2012 12/4/2014 2/9/2017 12/11/2018 1/22/2020 2/2/2021 2/7/2022 1/18/2023 Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
Figure 8
MW-12R: Dissolved Benzene Concentrations through Time versus Depth to Water
Dissolved Benzene Depth to Water
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
6/3/2004 6/3/2009 1/13/2010 7/12/2010 12/29/2010 12/20/2012 12/4/2014 2/9/2017 12/11/2018 1/22/2020 2/2/2021 02/07/22 01/18/23 Depth to Water (feet)Dissolved Benzene Concentration (ug/L)Date
Figure 9
MW-14R: Dissolved Benzene Concentration through Time versus Depth to Water
Dissolved Benzene Depth to Water

APPENDIX A

HISTORICAL SOIL DATA
TABLE 1
SOIL ANALYTICAL RESULTS
FORMER MARGARET MURPHY STATION
2874 SOUTH NC HIGHWAY 11
ROSE HILL, DUPLIN COUNTY, NC
NCDENR INCIDENT NO. 22674
ATC PROJECT NO. 45.40675.5001
Sample ID Date
Sampled
Sample
Depth
(feet)BenzeneEthylbenzeneTolueneTotal XylenesMTBENaphthalenen-Butylbenzenen-Propylbenzenesec-Butylbenzene1,2-Dichloroethane2-ButanoneAcetoneAcroleinAcrylonitrile1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene4-IsopropyltolueneIsopropylbenzeneC5-C8 AliphaticsC9-C10 AromaticsC9-C12 AliphaticsA-1 12/20/2010 7.5 0.021 0.980 2.00 5.8 <0.0048 0.300 0.042 0.230 0.018 <0.0048 <0.019 <0.096 <0.048 <0.058 2.50 0.830 0.029 0.060 7.40 6.90 15.0
A-2 12/20/2010 7.5 0.011 <0.006 0.026 0.0294 <0.006 <0.006 <0.006 <0.006 <0.006 <0.006 <0.024 <0.12 <0.060 <0.071 <0.006 <0.006 <0.006 <0.006 <2.90 <0.490 <3.40
A-3 12/20/2010 7.5 0.210 0.430 0.230 2.26 <0.0083 0.012 <0.0083 0.290 0.014 <0.0083 <0.033 <0.17 <0.083 <0.1 0.880 0.310 0.033 0.084 <2.40 2.00 5.70
A-4 12/20/2010 7.5 <0.510 10 <0.510 41.5 <0.51 6.4 6.8 8.9 <510 <0.51 <2.1 <10 <5.1 <6.2 54 25 <0.510 2.6 440 220 360
A-5 12/20/2010 7.5 <0.460 2.7 1.6 10.8 <0.46 1.1 <0.460 2.6 <0.460 <0.46 <1.9 <9.3 <4.6 <5.6 18 6.8 <0.460 0.66 130 68 110
A-6 12/20/2010 7.5 <2.5 50 130 227 <2.5 22 <2.5 46 6.3 <2.5 <9.9 <50 <25 <30 250E 94 <2.5 9.9 2,800 830 2,400
A-7 12/20/2010 7.5 7.9 7.4 37 43 <2.2 3.6 <2.2 2.4 <2.2 <2.2 <9.0 <45 <22 <27 16 4.9 <2.2 <2.2 7.4 4.1 12
A-8 12/20/2010 7.5 <0.280 <0.280 <0.280 <0.280 <0.280 <0.280 <0.280 <0.280 <0.280 <0.280 <1.1 <5.5 <2.8 <3.3 <0.280 <0.280 <0.280 <0.280 <2.9 <0.490 <3.40
A-9 12/20/2010 7.5 0.46E 0.38E 0.14 1.68E 0.0086 0.014 0.014 0.062 <0.0046 0.012 <0.018 0.1 <0.046 <0.055 0.34 0.12 0.07 0.021 <2.7 <0.450 <3.2
A-10 12/20/2010 7.5 0.29 0.3 0.13 0.8 0.028 0.31 0.2 0.48E 0.038 0.026 0.048 0.22 0.13 0.1 1.2 0.35 <0.200 0.11 <2.4 3.2 6.70
A-11 12/20/2010 7.5 <0.270 1.6 <0.270 6.3 <0.27 0.34 <0.270 1.7 0.43 <0.27 <1.1 <5.5 <2.7 <3.3 11 5.3 0.37 0.47 52 20 37
0.0056 4.6 7.3 5 0.091 0.58 4.3 1.7 3.3 0.0019 16 24 NE NE 7.5 7.3 NE 1.7 68 31 540
18 1,560 3,200 3,129 350 313 626 626 626 7 9,385 14,000 NE NE 782 782 NE 1,564 939 469 1,500
164 40,000 82,000 81,760 3,100 8,176 16,350 16,350 16,350 63 245,280 360,000 NE NE 20,440 20,440 NE 40,880 24,528 12,264 40,000
Notes:
1. MSCC = Maximum Soil Contaminant Concentration established by NCDENR.
2. Concentrations reported in milligrams per kilogram (mg/kg).
3. "<" = not detected at or above the laboratory detection limit.
4. NE = Not established.
5. Bold indicates concentrations above NCDENR Action Level or Soil-to-Groundwater MSCCs.
4. E = Estimated value exceeds calibration curve
MADEP-VPHEPA 8260B
Industrial/Commercial MSCCs
(mg/kg)
ANALTYICAL METHOD
Soil-to-Groundwater MSCCs
(mg/kg)
Residential MSCCs (mg/kg)

APPENDIX B

HISTORICAL GROUNDWATER
ELEVATION CONTOUR MAPS

APPENDIX C

LABORATORY ANALYTICAL RESULTS
01/26/23
Technical Report for
Atlas
Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
SGS Job Number: LA87132
Sampling Date: 01/18/23
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 01/26/23
e-Hardcopy 2.0
Automated Report
38
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.
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1 of 38
LA87132
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................6
3.1: LA87132-1: MW-11R ...................................................................................................7
3.2: LA87132-2: MW-12R ..................................................................................................10
3.3: LA87132-3: MW-14R ..................................................................................................13
Section 4: Misc. Forms ............................................................................................................16
4.1: Chain of Custody ...........................................................................................................17
Section 5: MS Volatiles - QC Data Summaries .....................................................................20
5.1: Method Blank Summary ................................................................................................21
5.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................27
5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................33 123452 of 38
LA87132
SGS North America Inc.
Sample Summary
Atlas
Job No:LA87132
Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
This report contains results reported as ND = Not detected. The following applies:
Organics ND = Not detected above the MDL
LA87132-1 01/18/23 14:05 LDS 01/20/23 AQ Ground Water MW-11R
LA87132-2 01/18/23 14:15 LDS 01/20/23 AQ Ground Water MW-12R
LA87132-3 01/18/23 14:25 LDS 01/20/23 AQ Ground Water MW-14R
3 of 38
LA871321
Summary of Hits Page 1 of 2
Job Number:LA87132
Account:Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Collected:01/18/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA87132-1 MW-11R
Acetone 41.4 10 1.2 ug/l SM 6200B
n-Butylbenzene 0.48 J 0.50 0.092 ug/l SM 6200B
tert-Butylbenzene 0.45 J 0.50 0.16 ug/l SM 6200B
Isopropylbenzene 1.1 0.50 0.13 ug/l SM 6200B
p-Isopropyltoluene 0.64 0.50 0.13 ug/l SM 6200B
Naphthalene 0.26 J 0.50 0.10 ug/l SM 6200B
n-Propylbenzene 1.7 0.50 0.22 ug/l SM 6200B
1,2,4-Trimethylbenzene 3.2 0.50 0.15 ug/l SM 6200B
1,3,5-Trimethylbenzene 0.26 J 0.50 0.16 ug/l SM 6200B
m,p-Xylene 0.51 J 1.0 0.34 ug/l SM 6200B
Xylene (total)0.51 0.50 0.16 ug/l SM 6200B
LA87132-2 MW-12R
Acetone 296 J 500 62 ug/l SM 6200B
Benzene 7.0 0.50 0.27 ug/l SM 6200B
n-Butylbenzene 0.85 0.50 0.092 ug/l SM 6200B
Ethylbenzene 30.9 0.50 0.20 ug/l SM 6200B
Isopropylbenzene 4.5 0.50 0.13 ug/l SM 6200B
p-Isopropyltoluene 0.49 J 0.50 0.13 ug/l SM 6200B
Naphthalene 19.0 0.50 0.10 ug/l SM 6200B
n-Propylbenzene 12.9 0.50 0.22 ug/l SM 6200B
Toluene 8.6 0.50 0.29 ug/l SM 6200B
1,2,4-Trimethylbenzene 53.5 0.50 0.15 ug/l SM 6200B
1,3,5-Trimethylbenzene 15.5 0.50 0.16 ug/l SM 6200B
m,p-Xylene 50.4 1.0 0.34 ug/l SM 6200B
o-Xylene 1.8 0.50 0.15 ug/l SM 6200B
Xylene (total)52.1 0.50 0.16 ug/l SM 6200B
LA87132-3 MW-14R
Acetone 79.5 J 100 12 ug/l SM 6200B
Benzene 731 5.0 2.7 ug/l SM 6200B
n-Butylbenzene 4.2 J 5.0 0.92 ug/l SM 6200B
1,2-Dichloroethane 2.5 2.0 1.2 ug/l SM 6200B
Ethylbenzene 340 5.0 2.0 ug/l SM 6200B
Isopropylbenzene 16.0 5.0 1.3 ug/l SM 6200B
p-Isopropyltoluene 1.8 J 5.0 1.3 ug/l SM 6200B
Methylene Chloride 2.0 J 5.0 0.80 ug/l SM 6200B
Naphthalene 118 5.0 1.0 ug/l SM 6200B
n-Propylbenzene 43.1 5.0 2.2 ug/l SM 6200B
Toluene 21.0 5.0 2.9 ug/l SM 6200B
1,2,4-Trimethylbenzene 214 5.0 1.5 ug/l SM 6200B
4 of 38
LA871322
Summary of Hits Page 2 of 2
Job Number:LA87132
Account:Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Collected:01/18/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
1,3,5-Trimethylbenzene 44.4 5.0 1.6 ug/l SM 6200B
m,p-Xylene 465 10 3.4 ug/l SM 6200B
o-Xylene 8.7 5.0 1.5 ug/l SM 6200B
Xylene (total)473 5.0 1.6 ug/l SM 6200B
5 of 38
LA871322
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
6 of 38
LA871323
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-11R
Lab Sample ID:LA87132-1 Date Sampled:01/18/23
Matrix:AQ - Ground Water Date Received:01/20/23
Method:SM 6200B Percent Solids:n/a
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 1Q0146323.D 1 01/20/23 20:10 MB n/a n/a V1Q3209
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 41.4 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 0.48 0.50 0.092 ug/l J
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene 0.45 0.50 0.16 ug/l J
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
7 of 38
LA8713233.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-11R
Lab Sample ID:LA87132-1 Date Sampled:01/18/23
Matrix:AQ - Ground Water Date Received:01/20/23
Method:SM 6200B Percent Solids:n/a
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene 1.1 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene 0.64 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene 0.26 0.50 0.10 ug/l J
103-65-1 n-Propylbenzene 1.7 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene 3.2 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene 0.26 0.50 0.16 ug/l J
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 0.51 1.0 0.34 ug/l J
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)0.51 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 97%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
8 of 38
LA8713233.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-11R
Lab Sample ID:LA87132-1 Date Sampled:01/18/23
Matrix:AQ - Ground Water Date Received:01/20/23
Method:SM 6200B Percent Solids:n/a
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 104%70-130%
460-00-4 4-Bromofluorobenzene 105%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 38
LA8713233.1
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-12R
Lab Sample ID:LA87132-2 Date Sampled:01/18/23
Matrix:AQ - Ground Water Date Received:01/20/23
Method:SM 6200B Percent Solids:n/a
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 1Q0146347.D 1 01/24/23 13:35 MB n/a n/a V1Q3210
Run #2 1Q0146325.D 50 01/20/23 21:07 MB n/a n/a V1Q3209
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 296 a 500 62 ug/l J
71-43-2 Benzene 7.0 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 0.85 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
10 of 38
LA8713233.2
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-12R
Lab Sample ID:LA87132-2 Date Sampled:01/18/23
Matrix:AQ - Ground Water Date Received:01/20/23
Method:SM 6200B Percent Solids:n/a
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene 30.9 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene 4.5 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene 0.49 0.50 0.13 ug/l J
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 19.0 0.50 0.10 ug/l
103-65-1 n-Propylbenzene 12.9 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 8.6 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 53.5 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene 15.5 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 50.4 1.0 0.34 ug/l
95-47-6 o-Xylene 1.8 0.50 0.15 ug/l
1330-20-7 Xylene (total)52.1 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 106%97%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
11 of 38
LA8713233.2
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-12R
Lab Sample ID:LA87132-2 Date Sampled:01/18/23
Matrix:AQ - Ground Water Date Received:01/20/23
Method:SM 6200B Percent Solids:n/a
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 101%105%70-130%
460-00-4 4-Bromofluorobenzene 105%104%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
12 of 38
LA8713233.2
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-14R
Lab Sample ID:LA87132-3 Date Sampled:01/18/23
Matrix:AQ - Ground Water Date Received:01/20/23
Method:SM 6200B Percent Solids:n/a
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 1Q0146348.D 10 01/24/23 14:03 MB n/a n/a V1Q3210
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 79.5 100 12 ug/l J
71-43-2 Benzene 731 5.0 2.7 ug/l
108-86-1 Bromobenzene ND 5.0 1.8 ug/l
74-97-5 Bromochloromethane ND 5.0 1.2 ug/l
75-27-4 Bromodichloromethane ND 5.0 1.8 ug/l
75-25-2 Bromoform ND 5.0 1.0 ug/l
104-51-8 n-Butylbenzene 4.2 5.0 0.92 ug/l J
135-98-8 sec-Butylbenzene ND 5.0 1.4 ug/l
98-06-6 tert-Butylbenzene ND 5.0 1.6 ug/l
56-23-5 Carbon Tetrachloride ND 2.0 0.92 ug/l
108-90-7 Chlorobenzene ND 5.0 1.6 ug/l
75-00-3 Chloroethane ND 5.0 0.55 ug/l
67-66-3 Chloroform ND 5.0 0.94 ug/l
95-49-8 o-Chlorotoluene ND 5.0 1.6 ug/l
106-43-4 p-Chlorotoluene ND 5.0 2.0 ug/l
124-48-1 Dibromochloromethane ND 2.0 0.75 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 1.3 ug/l
106-93-4 1,2-Dibromoethane ND 5.0 2.4 ug/l
75-71-8 Dichlorodifluoromethane ND 5.0 1.2 ug/l
541-73-1 m-Dichlorobenzene ND 5.0 0.63 ug/l
95-50-1 o-Dichlorobenzene ND 5.0 2.0 ug/l
106-46-7 p-Dichlorobenzene ND 5.0 2.2 ug/l
75-34-3 1,1-Dichloroethane ND 5.0 1.0 ug/l
107-06-2 1,2-Dichloroethane 2.5 2.0 1.2 ug/l
75-35-4 1,1-Dichloroethylene ND 5.0 0.94 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 5.0 1.1 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 5.0 1.5 ug/l
78-87-5 1,2-Dichloropropane ND 3.0 1.3 ug/l
142-28-9 1,3-Dichloropropane ND 5.0 2.1 ug/l
594-20-7 2,2-Dichloropropane ND 5.0 0.79 ug/l
563-58-6 1,1-Dichloropropene ND 5.0 1.2 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 2.0 1.0 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
13 of 38
LA8713233.3
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-14R
Lab Sample ID:LA87132-3 Date Sampled:01/18/23
Matrix:AQ - Ground Water Date Received:01/20/23
Method:SM 6200B Percent Solids:n/a
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 2.0 0.56 ug/l
108-20-3 Di-Isopropyl Ether ND 5.0 0.73 ug/l
64-17-5 Ethyl Alcohol ND 500 84 ug/l
100-41-4 Ethylbenzene 340 5.0 2.0 ug/l
591-78-6 2-Hexanone ND 10 4.2 ug/l
87-68-3 Hexachlorobutadiene ND 2.0 1.1 ug/l
98-82-8 Isopropylbenzene 16.0 5.0 1.3 ug/l
99-87-6 p-Isopropyltoluene 1.8 5.0 1.3 ug/l J
74-83-9 Methyl Bromide ND 5.0 2.3 ug/l
74-87-3 Methyl Chloride ND 5.0 0.66 ug/l
74-95-3 Methylene Bromide ND 5.0 1.1 ug/l
75-09-2 Methylene Chloride 2.0 5.0 0.80 ug/l J
78-93-3 Methyl Ethyl Ketone ND 250 2.8 ug/l
108-10-1 4-Methyl-2-pentanone ND 5.0 2.4 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 5.0 0.68 ug/l
91-20-3 Naphthalene 118 5.0 1.0 ug/l
103-65-1 n-Propylbenzene 43.1 5.0 2.2 ug/l
100-42-5 Styrene ND 5.0 1.3 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 5.0 1.8 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 2.0 1.2 ug/l
127-18-4 Tetrachloroethylene ND 5.0 2.2 ug/l
108-88-3 Toluene 21.0 5.0 2.9 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 5.0 1.6 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 5.0 1.7 ug/l
71-55-6 1,1,1-Trichloroethane ND 5.0 1.6 ug/l
79-00-5 1,1,2-Trichloroethane ND 3.0 1.7 ug/l
79-01-6 Trichloroethylene ND 5.0 1.8 ug/l
75-69-4 Trichlorofluoromethane ND 5.0 0.73 ug/l
96-18-4 1,2,3-Trichloropropane ND 5.0 0.23 ug/l
95-63-6 1,2,4-Trimethylbenzene 214 5.0 1.5 ug/l
108-67-8 1,3,5-Trimethylbenzene 44.4 5.0 1.6 ug/l
108-05-4 Vinyl Acetate ND 5.0 0.69 ug/l
75-01-4 Vinyl Chloride ND 1.0 0.75 ug/l
m,p-Xylene 465 10 3.4 ug/l
95-47-6 o-Xylene 8.7 5.0 1.5 ug/l
1330-20-7 Xylene (total)473 5.0 1.6 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 92%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
14 of 38
LA8713233.3
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-14R
Lab Sample ID:LA87132-3 Date Sampled:01/18/23
Matrix:AQ - Ground Water Date Received:01/20/23
Method:SM 6200B Percent Solids:n/a
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 107%70-130%
460-00-4 4-Bromofluorobenzene 105%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
15 of 38
LA8713233.3
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 4
16 of 38
LA871324
CHAIN OF CUSTODY PAGE I OF!-1 1-) l- n aI I rL-i ui SGS North Amorica lnc. - Scott
500 Ambassador Caffery Parkway, Scot, LA 70583
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E REoTI (L6wr3+l)
E comhorcr.r"c"
Commercial 'A' = Resu[s Only,
ClJ{ftrcid'B'= Resu[s + OC Sum@ry
Note: Sample inve in the Laboratory&p.ov.d By (sG Pr4:
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T/A dala ava able v a Lab ik
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Comrer.ia 'C'= Resuhs +OC
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LA87132: Chain of Custody
Page 1 of 3
17 of 38
LA8713244.1
ro SAMPLE hturtvtNu
SOS SCOTT LA LABORATORY
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LA87132: Chain of Custody
Page 2 of 3
18 of 38
LA8713244.1
SGS Sample Receipt Summary
Job Number:LA87132 Client:ATC
Date / Time Received:1/20/2023 9:15:00 AM Delivery Method:FedEx
Project:FORMER MARGARET MURPHY
4. No. Coolers:1
Airbill #'s:5707 9050 6205
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: (2.4/2.4); IR001
LA87132: Chain of Custody
Page 3 of 3
19 of 38
LA8713244.1
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
20 of 38
LA871325
Method Blank Summary Page 1 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3209-MB1 1Q0146304.D 1 01/20/23 MB n/a n/a V1Q3209
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-1, LA87132-2
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 17.9 50 8.4 ug/l J
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
21 of 38
LA8713255.1.1
Method Blank Summary Page 2 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3209-MB1 1Q0146304.D 1 01/20/23 MB n/a n/a V1Q3209
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-1, LA87132-2
CAS No.Compound Result RL MDL Units Q
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
22 of 38
LA8713255.1.1
Method Blank Summary Page 3 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3209-MB1 1Q0146304.D 1 01/20/23 MB n/a n/a V1Q3209
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-1, LA87132-2
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 96%70-130%
2037-26-5 Toluene-D8 105%70-130%
460-00-4 4-Bromofluorobenzene 105%70-130%
CAS No.Tentatively Identified Compounds R.T.Est. Conc.Units Q
Total TIC, Volatile 0 ug/l
23 of 38
LA8713255.1.1
Method Blank Summary Page 1 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3210-MB1 1Q0146344.D 1 01/24/23 MB n/a n/a V1Q3210
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-2, LA87132-3
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 1.3 10 1.2 ug/l J
71-43-2 Benzene ND 0.50 0.27 ug/l
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 19.0 50 8.4 ug/l J
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
24 of 38
LA8713255.1.2
Method Blank Summary Page 2 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3210-MB1 1Q0146344.D 1 01/24/23 MB n/a n/a V1Q3210
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-2, LA87132-3
CAS No.Compound Result RL MDL Units Q
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
25 of 38
LA8713255.1.2
Method Blank Summary Page 3 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3210-MB1 1Q0146344.D 1 01/24/23 MB n/a n/a V1Q3210
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-2, LA87132-3
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 100%70-130%
2037-26-5 Toluene-D8 106%70-130%
460-00-4 4-Bromofluorobenzene 106%70-130%
CAS No.Tentatively Identified Compounds R.T.Est. Conc.Units Q
Total TIC, Volatile 0 ug/l
26 of 38
LA8713255.1.2
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3209-BS1 1Q0146301.D 1 01/20/23 MB n/a n/a V1Q3209
V1Q3209-BSD1 1Q0146302.D 1 01/20/23 MB n/a n/a V1Q3209
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-1, LA87132-2
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 54.1 108 54.4 109 1 70-130/30
71-43-2 Benzene 20 18.4 92 18.2 91 1 70-130/30
108-86-1 Bromobenzene 20 19.3 97 19.2 96 1 70-130/30
74-97-5 Bromochloromethane 20 18.7 94 19.7 99 5 70-130/30
75-27-4 Bromodichloromethane 20 20.8 104 20.8 104 0 70-130/30
75-25-2 Bromoform 20 25.0 125 25.1 126 0 70-130/30
104-51-8 n-Butylbenzene 20 21.0 105 20.4 102 3 70-130/30
135-98-8 sec-Butylbenzene 20 20.1 101 19.3 97 4 70-130/30
98-06-6 tert-Butylbenzene 20 20.3 102 19.5 98 4 70-130/30
56-23-5 Carbon Tetrachloride 20 19.5 98 19.1 96 2 70-130/30
108-90-7 Chlorobenzene 20 19.0 95 18.7 94 2 70-130/30
75-00-3 Chloroethane 20 15.8 79 14.5 73 9 60-140/30
67-66-3 Chloroform 20 18.7 94 18.1 91 3 70-130/30
95-49-8 o-Chlorotoluene 20 19.4 97 18.9 95 3 70-130/30
106-43-4 p-Chlorotoluene 20 19.7 99 19.2 96 3 70-130/30
124-48-1 Dibromochloromethane 20 23.8 119 23.7 119 0 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 20.7 104 20.4 102 1 70-130/30
106-93-4 1,2-Dibromoethane 20 21.5 108 21.7 109 1 70-130/30
75-71-8 Dichlorodifluoromethane 20 17.8 89 17.7 89 1 60-140/30
541-73-1 m-Dichlorobenzene 20 19.0 95 18.4 92 3 70-130/30
95-50-1 o-Dichlorobenzene 20 19.4 97 18.7 94 4 70-130/30
106-46-7 p-Dichlorobenzene 20 18.6 93 18.1 91 3 70-130/30
75-34-3 1,1-Dichloroethane 20 17.6 88 17.2 86 2 70-130/30
107-06-2 1,2-Dichloroethane 20 21.6 108 21.8 109 1 70-130/30
75-35-4 1,1-Dichloroethylene 20 20.9 105 18.6 93 12 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 16.7 84 17.2 86 3 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 17.1 86 16.7 84 2 70-130/30
78-87-5 1,2-Dichloropropane 20 18.9 95 18.8 94 1 70-130/30
142-28-9 1,3-Dichloropropane 20 20.0 100 20.0 100 0 70-130/30
594-20-7 2,2-Dichloropropane 20 19.6 98 19.6 98 0 70-130/30
563-58-6 1,1-Dichloropropene 20 17.8 89 17.4 87 2 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 23.2 116 23.4 117 1 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 20.7 104 20.7 104 0 70-130/30
108-20-3 Di-Isopropyl Ether 20 18.3 92 18.3 92 0 70-130/30
64-17-5 Ethyl Alcohol 400 405 101 413 103 2 70-130/30
100-41-4 Ethylbenzene 20 19.5 98 19.1 96 2 70-130/30
* = Outside of Control Limits.
27 of 38
LA8713255.2.1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3209-BS1 1Q0146301.D 1 01/20/23 MB n/a n/a V1Q3209
V1Q3209-BSD1 1Q0146302.D 1 01/20/23 MB n/a n/a V1Q3209
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-1, LA87132-2
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
591-78-6 2-Hexanone 50 58.2 116 58.8 118 1 70-130/30
87-68-3 Hexachlorobutadiene 20 19.3 97 18.6 93 4 70-130/30
98-82-8 Isopropylbenzene 20 20.0 100 19.4 97 3 70-130/30
99-87-6 p-Isopropyltoluene 20 20.4 102 19.8 99 3 70-130/30
74-83-9 Methyl Bromide 20 13.8 69 12.4 62 11 60-140/30
74-87-3 Methyl Chloride 20 17.3 87 17.2 86 1 60-140/30
74-95-3 Methylene Bromide 20 18.9 95 19.2 96 2 70-130/30
75-09-2 Methylene Chloride 20 18.5 93 18.4 92 1 70-130/30
78-93-3 Methyl Ethyl Ketone 50 60.4 121 59.7 119 1 70-130/30
108-10-1 4-Methyl-2-pentanone 50 61.1 122 63.2 126 3 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 18.8 94 19.2 96 2 70-130/30
91-20-3 Naphthalene 20 22.4 112 22.4 112 0 70-130/30
103-65-1 n-Propylbenzene 20 20.0 100 19.4 97 3 70-130/30
100-42-5 Styrene 20 20.9 105 20.5 103 2 70-130/30
630-20-6 1,1,1,2-Tetrachloroethane 20 22.9 115 22.7 114 1 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 21.6 108 21.5 108 0 70-130/30
127-18-4 Tetrachloroethylene 20 19.3 97 19.4 97 1 70-130/30
108-88-3 Toluene 20 19.4 97 19.1 96 2 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 19.8 99 19.6 98 1 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 19.5 98 19.1 96 2 70-130/30
71-55-6 1,1,1-Trichloroethane 20 18.7 94 18.4 92 2 70-130/30
79-00-5 1,1,2-Trichloroethane 20 20.6 103 20.5 103 0 70-130/30
79-01-6 Trichloroethylene 20 19.4 97 19.1 96 2 70-130/30
75-69-4 Trichlorofluoromethane 20 17.7 89 17.0 85 4 60-140/30
96-18-4 1,2,3-Trichloropropane 20 20.8 104 20.7 104 0 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 20.1 101 19.4 97 4 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 20.5 103 19.8 99 3 70-130/30
108-05-4 Vinyl Acetate 20 21.4 107 21.7 109 1 70-130/30
75-01-4 Vinyl Chloride 20 17.7 89 17.4 87 2 60-140/30
m,p-Xylene 40 39.5 99 38.7 97 2 70-130/30
95-47-6 o-Xylene 20 19.3 97 19.2 96 1 70-130/30
1330-20-7 Xylene (total)60 58.9 98 57.9 97 2 70-130/30
* = Outside of Control Limits.
28 of 38
LA8713255.2.1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3209-BS1 1Q0146301.D 1 01/20/23 MB n/a n/a V1Q3209
V1Q3209-BSD1 1Q0146302.D 1 01/20/23 MB n/a n/a V1Q3209
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-1, LA87132-2
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 89%89%70-130%
2037-26-5 Toluene-D8 98%100%70-130%
460-00-4 4-Bromofluorobenzene 99%99%70-130%
* = Outside of Control Limits.
29 of 38
LA8713255.2.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3210-BS1 1Q0146341.D 1 01/24/23 MB n/a n/a V1Q3210
V1Q3210-BSD1 1Q0146342.D 1 01/24/23 MB n/a n/a V1Q3210
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-2, LA87132-3
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 55.5 111 55.7 111 0 70-130/30
71-43-2 Benzene 20 17.6 88 18.2 91 3 70-130/30
108-86-1 Bromobenzene 20 19.6 98 19.5 98 1 70-130/30
74-97-5 Bromochloromethane 20 18.3 92 18.9 95 3 70-130/30
75-27-4 Bromodichloromethane 20 21.1 106 21.6 108 2 70-130/30
75-25-2 Bromoform 20 25.4 127 25.3 127 0 70-130/30
104-51-8 n-Butylbenzene 20 20.8 104 20.2 101 3 70-130/30
135-98-8 sec-Butylbenzene 20 19.5 98 19.5 98 0 70-130/30
98-06-6 tert-Butylbenzene 20 19.9 100 19.9 100 0 70-130/30
56-23-5 Carbon Tetrachloride 20 19.4 97 19.9 100 3 70-130/30
108-90-7 Chlorobenzene 20 18.7 94 18.9 95 1 70-130/30
75-00-3 Chloroethane 20 16.9 85 17.4 87 3 60-140/30
67-66-3 Chloroform 20 18.7 94 19.3 97 3 70-130/30
95-49-8 o-Chlorotoluene 20 19.1 96 18.9 95 1 70-130/30
106-43-4 p-Chlorotoluene 20 19.2 96 19.3 97 1 70-130/30
124-48-1 Dibromochloromethane 20 24.7 124 24.7 124 0 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 20.1 101 19.8 99 2 70-130/30
106-93-4 1,2-Dibromoethane 20 22.1 111 21.8 109 1 70-130/30
75-71-8 Dichlorodifluoromethane 20 13.8 69 14.0 70 1 60-140/30
541-73-1 m-Dichlorobenzene 20 18.6 93 18.6 93 0 70-130/30
95-50-1 o-Dichlorobenzene 20 18.8 94 18.8 94 0 70-130/30
106-46-7 p-Dichlorobenzene 20 18.4 92 18.3 92 1 70-130/30
75-34-3 1,1-Dichloroethane 20 17.4 87 18.0 90 3 70-130/30
107-06-2 1,2-Dichloroethane 20 21.5 108 21.6 108 0 70-130/30
75-35-4 1,1-Dichloroethylene 20 18.5 93 20.3 102 9 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 17.4 87 17.9 90 3 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 16.4 82 16.8 84 2 70-130/30
78-87-5 1,2-Dichloropropane 20 18.8 94 19.2 96 2 70-130/30
142-28-9 1,3-Dichloropropane 20 20.6 103 20.3 102 1 70-130/30
594-20-7 2,2-Dichloropropane 20 19.8 99 20.3 102 2 70-130/30
563-58-6 1,1-Dichloropropene 20 17.1 86 17.6 88 3 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 23.5 118 23.9 120 2 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 21.1 106 20.9 105 1 70-130/30
108-20-3 Di-Isopropyl Ether 20 19.0 95 19.4 97 2 70-130/30
64-17-5 Ethyl Alcohol 400 302 76 432 108 35*70-130/30
100-41-4 Ethylbenzene 20 19.2 96 19.1 96 1 70-130/30
* = Outside of Control Limits.
30 of 38
LA8713255.2.2
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3210-BS1 1Q0146341.D 1 01/24/23 MB n/a n/a V1Q3210
V1Q3210-BSD1 1Q0146342.D 1 01/24/23 MB n/a n/a V1Q3210
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-2, LA87132-3
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
591-78-6 2-Hexanone 50 59.1 118 58.1 116 2 70-130/30
87-68-3 Hexachlorobutadiene 20 18.9 95 18.9 95 0 70-130/30
98-82-8 Isopropylbenzene 20 19.8 99 19.7 99 1 70-130/30
99-87-6 p-Isopropyltoluene 20 20.0 100 20.0 100 0 70-130/30
74-83-9 Methyl Bromide 20 13.0 65 13.8 69 6 60-140/30
74-87-3 Methyl Chloride 20 15.0 75 15.7 79 5 60-140/30
74-95-3 Methylene Bromide 20 19.1 96 19.3 97 1 70-130/30
75-09-2 Methylene Chloride 20 18.7 94 19.2 96 3 70-130/30
78-93-3 Methyl Ethyl Ketone 50 61.5 123 62.0 124 1 70-130/30
108-10-1 4-Methyl-2-pentanone 50 61.3 123 61.3 123 0 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 19.4 97 19.7 99 2 70-130/30
91-20-3 Naphthalene 20 22.5 113 22.5 113 0 70-130/30
103-65-1 n-Propylbenzene 20 19.7 99 19.3 97 2 70-130/30
100-42-5 Styrene 20 20.9 105 20.9 105 0 70-130/30
630-20-6 1,1,1,2-Tetrachloroethane 20 23.4 117 23.4 117 0 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 21.7 109 21.2 106 2 70-130/30
127-18-4 Tetrachloroethylene 20 19.3 97 19.6 98 2 70-130/30
108-88-3 Toluene 20 19.1 96 19.1 96 0 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 18.0 90 19.9 100 10 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 19.3 97 19.5 98 1 70-130/30
71-55-6 1,1,1-Trichloroethane 20 18.8 94 19.3 97 3 70-130/30
79-00-5 1,1,2-Trichloroethane 20 21.2 106 21.2 106 0 70-130/30
79-01-6 Trichloroethylene 20 18.6 93 19.2 96 3 70-130/30
75-69-4 Trichlorofluoromethane 20 17.7 89 18.1 91 2 60-140/30
96-18-4 1,2,3-Trichloropropane 20 20.6 103 20.4 102 1 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 19.7 99 19.6 98 1 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 20.0 100 20.0 100 0 70-130/30
108-05-4 Vinyl Acetate 20 22.4 112 22.6 113 1 70-130/30
75-01-4 Vinyl Chloride 20 17.0 85 17.4 87 2 60-140/30
m,p-Xylene 40 38.7 97 38.8 97 0 70-130/30
95-47-6 o-Xylene 20 19.2 96 19.4 97 1 70-130/30
1330-20-7 Xylene (total)60 57.9 97 58.1 97 0 70-130/30
* = Outside of Control Limits.
31 of 38
LA8713255.2.2
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V1Q3210-BS1 1Q0146341.D 1 01/24/23 MB n/a n/a V1Q3210
V1Q3210-BSD1 1Q0146342.D 1 01/24/23 MB n/a n/a V1Q3210
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-2, LA87132-3
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 91%92%70-130%
2037-26-5 Toluene-D8 101%102%70-130%
460-00-4 4-Bromofluorobenzene 102%100%70-130%
* = Outside of Control Limits.
32 of 38
LA8713255.2.2
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA86895-1MS 1Q0146319.D 20 01/20/23 MB n/a n/a V1Q3209
LA86895-1MSD 1Q0146320.D 20 01/20/23 MB n/a n/a V1Q3209
LA86895-1 1Q0146309.D 20 01/20/23 MB n/a n/a V1Q3209
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-1, LA87132-2
LA86895-1 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 350 1000 857 51* a 1000 872 52* a 2 70-130/20
71-43-2 Benzene 226 400 568 86 400 589 91 4 70-130/20
108-86-1 Bromobenzene ND 400 372 93 400 381 95 2 70-130/20
74-97-5 Bromochloromethane ND 400 359 90 400 366 92 2 70-130/20
75-27-4 Bromodichloromethane ND 400 395 99 400 416 104 5 70-130/20
75-25-2 Bromoform ND 400 472 118 400 479 120 1 70-130/20
104-51-8 n-Butylbenzene 28.8 400 349 80 400 362 83 4 70-130/20
135-98-8 sec-Butylbenzene 16.9 400 373 89 400 389 93 4 70-130/20
98-06-6 tert-Butylbenzene ND 400 377 94 400 399 100 6 70-130/20
56-23-5 Carbon Tetrachloride ND 400 355 89 400 377 94 6 70-130/20
108-90-7 Chlorobenzene ND 400 371 93 400 378 95 2 70-130/20
75-00-3 Chloroethane ND 400 337 84 400 329 82 2 60-140/20
67-66-3 Chloroform ND 400 341 85 400 298 75 13 70-130/20
95-49-8 o-Chlorotoluene ND 400 358 90 400 381 95 6 70-130/20
106-43-4 p-Chlorotoluene ND 400 356 89 400 379 95 6 70-130/20
124-48-1 Dibromochloromethane ND 400 456 114 400 472 118 3 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 400 383 96 400 406 102 6 70-130/20
106-93-4 1,2-Dibromoethane ND 400 414 104 400 432 108 4 70-130/20
75-71-8 Dichlorodifluoromethane ND 400 309 77 400 326 82 5 60-140/20
541-73-1 m-Dichlorobenzene ND 400 345 86 400 356 89 3 70-130/20
95-50-1 o-Dichlorobenzene ND 400 360 90 400 374 94 4 70-130/20
106-46-7 p-Dichlorobenzene ND 400 338 85 400 357 89 5 70-130/20
75-34-3 1,1-Dichloroethane ND 400 334 84 400 351 88 5 70-130/20
107-06-2 1,2-Dichloroethane ND 400 413 103 400 435 109 5 70-130/20
75-35-4 1,1-Dichloroethylene ND 400 339 85 400 346 87 2 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 400 324 81 400 346 87 7 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 400 314 79 400 332 83 6 70-130/20
78-87-5 1,2-Dichloropropane ND 400 363 91 400 378 95 4 70-130/20
142-28-9 1,3-Dichloropropane ND 400 385 96 400 398 100 3 70-130/20
594-20-7 2,2-Dichloropropane ND 400 220 55* a 400 237 59* a 7 70-130/20
563-58-6 1,1-Dichloropropene ND 400 325 81 400 341 85 5 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 400 401 100 400 431 108 7 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 400 353 88 400 371 93 5 70-130/20
108-20-3 Di-Isopropyl Ether ND 400 349 87 400 367 92 5 70-130/20
64-17-5 Ethyl Alcohol ND 8000 5540 69* a 8000 5050 63* a 9 70-130/20
100-41-4 Ethylbenzene 493 400 824 83 400 849 89 3 70-130/20
* = Outside of Control Limits.
33 of 38
LA8713255.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA86895-1MS 1Q0146319.D 20 01/20/23 MB n/a n/a V1Q3209
LA86895-1MSD 1Q0146320.D 20 01/20/23 MB n/a n/a V1Q3209
LA86895-1 1Q0146309.D 20 01/20/23 MB n/a n/a V1Q3209
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-1, LA87132-2
LA86895-1 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
591-78-6 2-Hexanone ND 1000 1080 108 1000 1120 112 4 70-130/20
87-68-3 Hexachlorobutadiene ND 400 305 76 400 323 81 6 70-130/20
98-82-8 Isopropylbenzene 121 400 484 91 400 496 94 2 70-130/20
99-87-6 p-Isopropyltoluene ND 400 358 90 400 378 95 5 70-130/20
74-83-9 Methyl Bromide ND 400 229 57* a 400 263 66 14 60-140/20
74-87-3 Methyl Chloride ND 400 298 75 400 336 84 12 60-140/20
74-95-3 Methylene Bromide ND 400 370 93 400 383 96 3 70-130/20
75-09-2 Methylene Chloride ND 400 353 88 400 369 92 4 70-130/20
78-93-3 Methyl Ethyl Ketone ND 1000 793 79 1000 902 90 13 70-130/20
108-10-1 4-Methyl-2-pentanone ND 1000 1180 118 1000 1170 117 1 70-130/20
1634-04-4 Methyl Tert Butyl Ether 88.1 400 445 89 400 467 95 5 70-130/20
91-20-3 Naphthalene 1130 400 1420 73 400 1500 93 5 70-130/20
103-65-1 n-Propylbenzene 292 400 634 86 400 668 94 5 70-130/20
100-42-5 Styrene ND 400 400 100 400 406 102 1 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 400 439 110 400 454 114 3 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 400 414 104 400 433 108 4 70-130/20
127-18-4 Tetrachloroethylene ND 400 303 76 400 316 79 4 70-130/20
108-88-3 Toluene 38.3 400 407 92 400 427 97 5 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 400 366 92 400 390 98 6 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 400 350 88 400 373 93 6 70-130/20
71-55-6 1,1,1-Trichloroethane ND 400 347 87 400 368 92 6 70-130/20
79-00-5 1,1,2-Trichloroethane ND 400 418 105 400 434 109 4 70-130/20
79-01-6 Trichloroethylene ND 400 366 92 400 376 94 3 70-130/20
75-69-4 Trichlorofluoromethane ND 400 345 86 400 336 84 3 60-140/20
96-18-4 1,2,3-Trichloropropane ND 400 354 89 400 351 88 1 70-130/20
95-63-6 1,2,4-Trimethylbenzene 29.8 400 392 91 400 414 96 5 70-130/20
108-67-8 1,3,5-Trimethylbenzene 19.9 400 387 92 400 414 99 7 70-130/20
108-05-4 Vinyl Acetate ND 400 398 100 400 417 104 5 70-130/20
75-01-4 Vinyl Chloride ND 400 338 85 400 342 86 1 60-140/20
m,p-Xylene 230 800 964 92 800 1000 96 4 70-130/20
95-47-6 o-Xylene 11.3 400 381 92 400 391 95 3 70-130/20
1330-20-7 Xylene (total)242 1200 1340 92 1200 1390 96 4 70-130/20
* = Outside of Control Limits.
34 of 38
LA8713255.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA86895-1MS 1Q0146319.D 20 01/20/23 MB n/a n/a V1Q3209
LA86895-1MSD 1Q0146320.D 20 01/20/23 MB n/a n/a V1Q3209
LA86895-1 1Q0146309.D 20 01/20/23 MB n/a n/a V1Q3209
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-1, LA87132-2
CAS No.Surrogate Recoveries MS MSD LA86895-1 Limits
17060-07-0 1,2-Dichloroethane-D4 87%86%97%70-130%
2037-26-5 Toluene-D8 98%100%104%70-130%
460-00-4 4-Bromofluorobenzene 100%100%104%70-130%
(a) Outside control limits due to matrix interference. Blank Spike meets acceptance criteria.
* = Outside of Control Limits.
35 of 38
LA8713255.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA87133-1MS 1Q0146350.D 100 01/24/23 MB n/a n/a V1Q3210
LA87133-1MSD 1Q0146351.D 100 01/24/23 MB n/a n/a V1Q3210
LA87133-1 1Q0146349.D 50 01/24/23 MB n/a n/a V1Q3210
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-2, LA87132-3
LA87133-1 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 108 J 5000 3020 56*5000 3070 57*2 70-130/20
71-43-2 Benzene 4160 2000 5760 -128* a 2000 5790 -127* a 1 70-130/20
108-86-1 Bromobenzene ND 2000 1880 94 2000 1940 97 3 70-130/20
74-97-5 Bromochloromethane ND 2000 1820 91 2000 1840 92 1 70-130/20
75-27-4 Bromodichloromethane ND 2000 2120 106 2000 2160 108 2 70-130/20
75-25-2 Bromoform ND 2000 2500 125 2000 2560 128 2 70-130/20
104-51-8 n-Butylbenzene 9.5 J 2000 1640 81 2000 1690 84 3 70-130/20
135-98-8 sec-Butylbenzene ND 2000 1830 92 2000 1880 94 3 70-130/20
98-06-6 tert-Butylbenzene ND 2000 1890 95 2000 1990 100 5 70-130/20
56-23-5 Carbon Tetrachloride ND 2000 1840 92 2000 1900 95 3 70-130/20
108-90-7 Chlorobenzene ND 2000 1820 91 2000 1870 94 3 70-130/20
75-00-3 Chloroethane ND 2000 1620 81 2000 1590 80 2 60-140/20
67-66-3 Chloroform ND 2000 1510 76 2000 1530 77 1 70-130/20
95-49-8 o-Chlorotoluene ND 2000 1840 92 2000 1930 97 5 70-130/20
106-43-4 p-Chlorotoluene ND 2000 1860 93 2000 1900 95 2 70-130/20
124-48-1 Dibromochloromethane ND 2000 2410 121 2000 2480 124 3 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 2000 1920 96 2000 2010 101 5 70-130/20
106-93-4 1,2-Dibromoethane ND 2000 2160 108 2000 2240 112 4 70-130/20
75-71-8 Dichlorodifluoromethane ND 2000 1430 72 2000 1520 76 6 60-140/20
541-73-1 m-Dichlorobenzene ND 2000 1770 89 2000 1820 91 3 70-130/20
95-50-1 o-Dichlorobenzene ND 2000 1830 92 2000 1900 95 4 70-130/20
106-46-7 p-Dichlorobenzene ND 2000 1730 87 2000 1800 90 4 70-130/20
75-34-3 1,1-Dichloroethane ND 2000 1700 85 2000 1740 87 2 70-130/20
107-06-2 1,2-Dichloroethane ND 2000 2180 109 2000 2190 110 0 70-130/20
75-35-4 1,1-Dichloroethylene ND 2000 1810 91 2000 1750 88 3 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 2000 1670 84 2000 1740 87 4 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 2000 1550 78 2000 1610 81 4 70-130/20
78-87-5 1,2-Dichloropropane ND 2000 1920 96 2000 1930 97 1 70-130/20
142-28-9 1,3-Dichloropropane ND 2000 2010 101 2000 2050 103 2 70-130/20
594-20-7 2,2-Dichloropropane ND 2000 1180 59*2000 1240 62*5 70-130/20
563-58-6 1,1-Dichloropropene ND 2000 1640 82 2000 1660 83 1 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 2000 2150 108 2000 2220 111 3 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 2000 1840 92 2000 1940 97 5 70-130/20
108-20-3 Di-Isopropyl Ether 63.8 2000 1900 89 2000 1940 91 2 70-130/20
64-17-5 Ethyl Alcohol ND 40000 27000 68*40000 26300 66*3 70-130/20
100-41-4 Ethylbenzene 173 2000 2030 84 2000 2100 88 3 70-130/20
* = Outside of Control Limits.
36 of 38
LA8713255.3.2
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA87133-1MS 1Q0146350.D 100 01/24/23 MB n/a n/a V1Q3210
LA87133-1MSD 1Q0146351.D 100 01/24/23 MB n/a n/a V1Q3210
LA87133-1 1Q0146349.D 50 01/24/23 MB n/a n/a V1Q3210
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-2, LA87132-3
LA87133-1 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
591-78-6 2-Hexanone ND 5000 5460 109 5000 5690 114 4 70-130/20
87-68-3 Hexachlorobutadiene ND 2000 1620 81 2000 1660 83 2 70-130/20
98-82-8 Isopropylbenzene 70.0 2000 1950 91 2000 2030 95 4 70-130/20
99-87-6 p-Isopropyltoluene ND 2000 1810 91 2000 1890 95 4 70-130/20
74-83-9 Methyl Bromide ND 2000 763 38*2000 1110 56*37*60-140/20
74-87-3 Methyl Chloride ND 2000 1360 68 2000 1450 73 6 60-140/20
74-95-3 Methylene Bromide ND 2000 1930 97 2000 1960 98 2 70-130/20
75-09-2 Methylene Chloride 12.6 J 2000 1830 90 2000 1880 93 3 70-130/20
78-93-3 Methyl Ethyl Ketone ND 5000 4780 96 5000 4830 97 1 70-130/20
108-10-1 4-Methyl-2-pentanone ND 5000 6080 122 5000 6120 122 1 70-130/20
1634-04-4 Methyl Tert Butyl Ether 52.7 2000 1920 91 2000 2000 95 4 70-130/20
91-20-3 Naphthalene 674 2000 2950 80 2000 2990 82 1 70-130/20
103-65-1 n-Propylbenzene 171 2000 2050 85 2000 2080 87 1 70-130/20
100-42-5 Styrene ND 2000 1990 100 2000 2040 102 2 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 2000 2270 114 2000 2330 117 3 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 2000 2160 108 2000 2220 111 3 70-130/20
127-18-4 Tetrachloroethylene ND 2000 1750 88 2000 1780 89 2 70-130/20
108-88-3 Toluene 25.8 2000 1890 92 2000 1950 95 3 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 2000 1890 95 2000 1940 97 3 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 2000 1790 90 2000 1830 92 2 70-130/20
71-55-6 1,1,1-Trichloroethane ND 2000 1790 90 2000 1850 93 3 70-130/20
79-00-5 1,1,2-Trichloroethane ND 2000 2090 105 2000 2120 106 1 70-130/20
79-01-6 Trichloroethylene ND 2000 1860 93 2000 1880 94 1 70-130/20
75-69-4 Trichlorofluoromethane ND 2000 1610 81 2000 1620 81 1 60-140/20
96-18-4 1,2,3-Trichloropropane ND 2000 2060 103 2000 1830 92 12 70-130/20
95-63-6 1,2,4-Trimethylbenzene 10.7 J 2000 1890 93 2000 1940 96 3 70-130/20
108-67-8 1,3,5-Trimethylbenzene ND 2000 1900 95 2000 1970 99 4 70-130/20
108-05-4 Vinyl Acetate ND 2000 1280 64*2000 1290 65*1 70-130/20
75-01-4 Vinyl Chloride ND 2000 1600 80 2000 1610 81 1 60-140/20
m,p-Xylene 44.5 J 4000 3760 92 4000 3890 95 3 70-130/20
95-47-6 o-Xylene ND 2000 1870 94 2000 1920 96 3 70-130/20
1330-20-7 Xylene (total)44.5 6000 5630 92 6000 5810 95 3 70-130/20
* = Outside of Control Limits.
37 of 38
LA8713255.3.2
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA87132
Account:ATCNCR Atlas
Project:Margaret Murphy 2874 NC Hwy 11, Rosehill, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA87133-1MS 1Q0146350.D 100 01/24/23 MB n/a n/a V1Q3210
LA87133-1MSD 1Q0146351.D 100 01/24/23 MB n/a n/a V1Q3210
LA87133-1 1Q0146349.D 50 01/24/23 MB n/a n/a V1Q3210
The QC reported here applies to the following samples:Method: SM 6200B
LA87132-2, LA87132-3
CAS No.Surrogate Recoveries MS MSD LA87133-1 Limits
17060-07-0 1,2-Dichloroethane-D4 89%88%90%70-130%
2037-26-5 Toluene-D8 101%101%106%70-130%
460-00-4 4-Bromofluorobenzene 100%102%106%70-130%
(a) Outside control limits due to high level in sample relative to spike amount.
* = Outside of Control Limits.
38 of 38
LA8713255.3.2

APPENDIX D

CONTAMINANT MASS VERSUS TIME
2004
2012
2014
2021
2022
2023
0
1
2
3
4
5
6
2004 2012 2014 2021 2022 2023Contaminant Mass (kg)Date
Contaminant Mass versus Time
Benzene Contaminant Mass