MO-3300_8418_CA_MRP_ 20230928

Monitoring Report
Christie’s Texaco

398 North Main Street
Mooresville, Iredell County, North Carolina 28115
NCDEQ Incident #8418
ATC Project #STL0841801

Submittal Date:

September 28, 2023

Prepared By:
ATC Associates of North Carolina, P.C.
7606 Whitehall Executive Center Drive, Suite 800
Charlotte, North Carolina 28273
p: [phone] / f: [phone]

www.atcgroupservices.com

Monitoring Report September 28, 2023
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

TABLE OF CONTENTS

1.0 SITE IDENTIFICATION .........................................................................................1
2.0 EXECUTIVE SUMMARY ......................................................................................2
3.0 SITE DESCRIPTION..............................................................................................3
3.1 Site Characterization ............................................................................3
3.2 Site Background ....................................................................................3
3.3 Site and Regional Geology ..................................................................5
3.4 Site and Regional Hydrogeology ........................................................5
4.0 GROUNDWATER CHARACTERIZATION ........................................................5
4.1 Groundwater Levels ..............................................................................5
4.2 Groundwater Quality .............................................................................6
4.3 Quality Assurance and Quality Control ..............................................6
5.0 CONCLUSIONS AND RECOMMENDATIONS .................................................7

TABLES
Table 1 Well Construction and Groundwater Elevation Data
Table 2 Field Parameters
Table 3 Recent Groundwater Analytical Results
Table 4 Historical Groundwater Analytical Results

FIGURES
Figure 1 Site Location Map
Figure 2 Site Map
Figure 3 Groundwater Elevation Contour Map
Figure 4 Groundwater Quality Map

APPENDICES
Appendix A Conceptual Site Model
Appendix B Field Notes and Photographs
Appendix C Laboratory Analytical Report
Monitoring Report September 28, 2023
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

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2.0 EXECUTIVE SUMMARY
ATC Associates of North Carolina, P.C. (ATC) submits this Monitoring Report documenting the
monitoring well sampling event for five monitoring wells on July 24, 2023, at the Christie’s Texaco
site. The former underground storage tank (UST) system at the site consisted of one 3,000-gallon
gasoline UST, one 1,000-gallon gasoline UST, one 550-gallon gasoline UST, one 550-gallon
kerosene UST, and one 550-gallon waste oil UST which resulted in a release of petroleum product
to the subsurface prior to January 21, 1991. The site is currently vacant, but was formerly occupied
by Christie’s Texaco, a gas station and convenience store. The report has been completed based
on a June 22, 2023, Task Authorization (TA-01) by the Trust Fund Branch of the UST Section,
Division of Waste Management, North Carolina Department of Environmental Quality (NCDEQ).
The work was performed as part of the State Lead Contract # N70522-B between the NCDEQ and
ATC.

The approved services for TA-01 included the sampling of five monitoring wells (MW-1, MW-2,
MW-3, MW-4, and MW-5) that were sampled on July 24, 2023. Monitoring well MW-1 could not be
sampled due to a vehicle parked over the well. The groundwater samples were analyzed for
volatile organic compounds (VOCs) by Standard Method (SM) 6200B including oxygenates. The
site conditions are presented below and in the Conceptual Site Model (CSM) in Appendix A,
based on the recent and historical assessment activities:

 The current risk classification for the incident is Intermediate due to prior exceedances of
the Gross Contamination Level (GCL) for 12-dibromoethane or ethylene dibromide (EDB)
in wells MW-2 and MW-4, and light non-aqueous phase liquid (LNAPL) in well MW-2;
 No water supply wells have been identified within 1,000 feet of the source area, and
municipal water is available to the site and surrounding area;
 No surface water bodies are located within 500 feet of the source area;
 LNAPL was not detected;
 No constituents were found in excess of the Gross Contamination Levels (GCLs), with the
highest concentration of EDB of 8.7 micrograms per liter (µg/L) in MW-4;
 Monitoring well MW-1 could not be accessed and was not sampled. The EDB
concentrations in MW-1 have been less than the GCL since May 2018;
 Several VOCs were detected in monitoring wells MW-2, MW-4, and MW-5 at
concentrations above the 15A NCAC 02L.0202 groundwater quality standards (2L
Standards);
 VOCs were not detected above the 2L Standards in monitoring well MW-3;
 VOC concentrations in well MW-4 seem generally stable in comparison to the March 2022
sampling event; and,
 The depths to groundwater ranged from 33.30 feet below top of casing (ft-toc) in MW-3
to 39.70 ft-toc in MW-5 and were approximately 1.5 feet higher than in March 2022.
Based on the groundwater elevations, groundwater flow is to the north-northwest.

Based on the findings of the groundwater sampling event, ATC recommends:

 Conduct a groundwater monitoring event in January 2024 (six months after the July 2023
event) to confirm that EDB concentrations remain less than the GCL and LNAPL is not
present for possible closure of the incident.

Monitoring Report September 28, 2023
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

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3.0 SITE DESCRIPTION
3.1 Site Characterization
ATC, under contract to the NCDEQ, provided environmental consulting services at the Christie’s
Texaco site, which is located at 398 North Main Street, in Mooresville, Iredell County, North
Carolina. Figure 1 depicts the site on a topographic map. The site formerly operated as a gas
station and convenience store; however, the site is currently vacant.

3.2 Site Background
The site formerly operated as Christie’s Texaco. According to the NCDEQ UST database, the site
formerly operated one 3,000-gallon gasoline UST, one 1,000-gallon gasoline UST, one 550-gallon
gasoline UST, one 550-gallon kerosene UST, and one 550-gallon waste oil UST. The locations of
the USTs and site features are indicated on Figure 2.

Historically, a release of petroleum from the former on-site UST system was reported during
removal of the UST system in January of 1991. Prior environmental assessment activities included
an Initial Abatement Action-UST Closure Report and Phase I Limited Site Assessment (LSA)
performed in May of 2009. Two monitoring wells (MW-1 and MW-2) were installed during LSA
activities in 2009. Petroleum constituent concentrations in the soil exceeded the Soil-to-
Groundwater and Residential Maximum Soil Contaminant Concentrations (MSCCs). Petroleum
constituent concentrations in the groundwater exceeded the 2L Standards in both monitoring well
samples, and also exceeded the GCL for EDB in the monitoring well MW-2 sample. That report
also indicated that no water supply wells were identified within 1,000 feet of the source areas and
the nearest surface water body was located approximately 625 feet northwest of the source areas.
Based on the Iredell County GIS website, this surface water body indicated as an intermittent
stream on the USGS topographic map (Figure 1) is a culverted stream beneath Tunnel Road and
is approximately 510 feet from the source areas.

Additional assessment at the site included groundwater monitoring activities performed by ATC in
December 2014. Results from the December 2014 monitoring event indicated 1.51 feet of LNAPL
present in monitoring well MW-2, and exceedance of 2L Standards in the sample collected from
monitoring well MW-1. Consequently, ATC performed a MMPE event in June 2015 using
monitoring wells MW-1 and MW-2 as extraction points. Petroleum impacted groundwater (4,328
gallons) and approximately 222 pounds of vaporous hydrocarbons (approximately 41 gallons) were
removed during the MMPE event. LNAPL was not detected in site wells post-MMPE. Following the
completion of the MMPE event, Adventus remedial O-SOX were installed in monitoring wells MW-1
and MW-2.

A post-O-SOX groundwater monitoring event was completed by ATC in February of 2016,
documenting the presence of LNAPL in monitoring well MW-2 at a thickness of 0.14 feet and
exceedance of the 2L Standards in the sample collected from monitoring well MW-1. In August of
2016, ATC supervised an 8-hour Aggressive Fluid Vapor Recovery (AFVR) event which recovered
approximately 0.98-gallons of petroleum vapor. Subsequently, a groundwater monitoring event
was completed in September of 2016 documenting 0.23 feet of LNAPL in monitoring well MW-2
and exceedances of 2L Standards in the sample collected from monitoring well MW-1. Concurrent
with the September 2016 monitoring event, new O-SOXs were installed in monitoring wells MW-1
and MW-2.

Groundwater monitoring was performed at the site by ATC in May 2018. Expended O-SOX were
removed from the monitoring wells and were sampled. LNAPL was detected in monitoring well
MW-2 at a thickness of 0.56 feet, and the well was not sampled. Laboratory analytical results of
Monitoring Report September 28, 2023
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

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well MW-1 indicated concentrations of ten compounds above 2L Standards. Following the May
2018 monitoring event, ATC recommended the installation and sampling of three additional
shallow monitoring wells to delineate the extent of LNAPL and groundwater impact.

Three additional monitoring wells were installed in July 2018 (MW-3 and MW-4) and August 2018
(MW-5). The three wells were sampled on July 20, 2018 (MW-3 and MW-4) and August 21, 2018
(MW-5). Liquid level measurements in all five wells on August 21, 2018, indicated LNAPL in MW-2
only (0.63 feet). Groundwater sampling results of MW-3, MW-4, and MW-5 indicated one
exceedance of the GCLs in MW-4 (EDB at 230 µg/L).

From December 3, 2018, through December 7, 2018, a MMPE event was conducted using
monitoring wells MW-1, MW-2, and MW-4. Prior to the MMPE event, LNAPL was observed in
measured in MW-1 (0.03 feet) and MW-2 (0.76 feet). The LNAPL in MW-1 was observed for the
first time. The MMPE removed 4,514 gallons of groundwater/LNAPL mixture and 124.47 pounds
(equivalent 20.23 gallons) of VOCs. Post-MMPE sampling was conducted on January 7, 2019.
LNAPL was measured in well MW-2 at a thickness of 0.06 feet. EDB was detected in well MW-4 at
a concentration exceeding the GCL; however, the concentration reduced approximately 43 percent
following the MMPE. EDB is the only compound detected at a concentration exceeding the GCLs.

From June 10, 2019 through June 14, 2019, a MMPE event was conducted using monitoring wells
MW-1, MW-2, and MW-4. Prior to the MMPE event, no LNAPL was observed in the target wells,
and groundwater samples were collected for laboratory analysis. The MMPE removed 4,706
gallons of groundwater and approximately 54.68 pounds of vaporous hydrocarbons (approximately
8.89 gallons). Post-MMPE sampling was conducted on July 15, 2019. Groundwater samples were
collected from monitoring wells MW-1, MW-2 and MW-4. LNAPL was not detected in any of the
sampled monitoring wells. EDB was detected in wells MW-2 and MW-4 at concentrations
exceeding the GCL. For MW-4, the June 10, 2019 pre-MMPE EDB concentration was less than
the January 2019 EDB concentration, and less than the GCL, however, the July 15, 2019 post-
MMPE EDB concentration was higher than the Pre-MMPE EDB concentration. EDB remained the
only VOC detected at a concentration exceeding the GCLs.

From February 24, 2020 and February 28, 2020, a MMPE event was conducted using monitoring
wells MW-2 and MW-4. Prior to the MMPE event, no LNAPL was observed in the target wells, and
groundwater samples were collected for laboratory analysis. The MMPE removed 3,921 gallons of
groundwater and approximately 64.62 pounds of vaporous hydrocarbons (approximately 10.05
gallons). Recovered vapor samples were collected on February 24, 2020 and February 28, 2020
for analysis using TO-15. The results of the compound-specific analyses indicated an estimated
6.8 kilograms (15 pounds) of VOCs were removed during the MMPE event. EDB was not detected
in the vapor samples. Post-MMPE groundwater sampling was conducted on March 9, 2020.
Groundwater samples were collected from monitoring wells MW-1, MW-2, MW-3, MW-4, and MW-
5. LNAPL was not detected in any of the sampled monitoring wells. The March 9, 2020 post-MMPE
VOC concentrations were generally less than the February 24, 2020 results. However, the
February and March 2020 VOC concentrations were less than the previous concentrations
indicating an overall reduction in concentrations. EDB remained the only VOC detected at a
concentration exceeding the GCLs.

On March 12, 2021, site monitoring wells MW-1 through MW-5 were gauged for depth to water
and sampled. EDB was detected in monitoring wells MW-2 (361 µg/L) and MW-4 (10.9 µg/L) at
concentrations exceeding the 2L Standard of 0.02 µg/L. The concentration of EDB in MW-2 also
exceeded the GCL of 50 µg/L. In MW-2, several VOCs decreased in concentration, while others
increased, but none approached the GCLs, excluding EDB. VOC concentrations in wells MW-1
and MW-4 generally decreased.
Monitoring Report September 28, 2023
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

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On March 11, 2022, site monitoring wells MW-1 through MW-5 were gauged for depth to water
and sampled. MW-02 was found to have LNAPL present. Several VOCs including benzene,
toluene, ethylbenzene, total xylenes, naphthalene, 1,2-dichloroethane, n-propylbenzene, 1,2,4-
trimethylbenzene, and 1,3,5-trimethylbenzene were detected in monitoring wells MW-1, and
MW-4 at concentrations above the 2L Standards. The concentration of EDB in MW-4 also
exceeded the GCL of 50 µg/L. VOC concentrations in wells MW-1 and MW-4 were found to
have generally increased.

3.3 Site and Regional Geology

According to the Geologic Map of North Carolina, produced by the State of North Carolina in
1985, the site lies within the Charlotte Belt of the Piedmont Physiographic Province of North
Carolina. The rock type at the site has been identified as amphibolite and biotite gneiss which
are crystalline metamorphic rocks. The shallow subsurface in most areas of the Piedmont
contains residual soil overburden, including structure-free residuum, saprolite, and partially
weathered rock (PWR) that derive from in-place weathering of the crystalline bedrock.
Occasional areas containing recent deposits of alluvium in the uppermost subsurface are found
near streams and rivers. Saprolite and PWR typically contain some relict structures from the
original rock material. Depth to rock ranges from ground surface at occasional outcrops to
depths of greater than 100 feet in areas of easily weathered rock.

3.4 Site and Regional Hydrogeology
The shallow aquifer occurrence varies in depth from ground surface at springs, creeks, and
rivers to as deep as 50 feet or more beneath upland surfaces in some parts of the Piedmont.
Water in the alluvium or unconsolidated residual material, including saprolite and PWR, usually
behaves as an unconfined aquifer, or water table, and will yield water with head elevation
equivalent to the first elevation where water was encountered. Permeability varies with lithology
and is typically relatively low in residual soils, with higher permeability in saprolite or PWR due
to relict rock texture and variable susceptibility to weathering exhibited by different minerals in
the rock. Groundwater flow in residual soils or alluvium is usually in rough concurrence with
local topographic conditions and is toward local drainage features. Based on the gauging of the
monitoring well network, groundwater flow across the site is generally to the north-northwest.
Depth to groundwater in the overburden aquifer ranges from approximately 32 to 41 feet below
ground surface (ft-bgs).

The bedrock fractures or other planar features of the Piedmont Physiographic Province
generally constitute the bedrock aquifer, with the surrounding rock material being effectively
impermeable. Along with fractures, contacts between rock bodies probably constitute zones of
significant groundwater occurrence in the bedrock. The surrounding material and overlying
residuum tend to make the bedrock aquifer a semi-confined aquifer. That is, the overlying water
and soil weight normally results in pressure that causes water in a borehole, which intersects a
fracture or other feature, to rise above the elevation of the fracture or feature. Modern water
supply wells in the Piedmont, likely including those in the site vicinity, are typically installed with
a surface casing through the unconsolidated material, and an open borehole into the bedrock
where water-bearing fractures are encountered.

4.0 GROUNDWATER CHARACTERIZATION
4.1 Groundwater Levels
On July 24, 2023, ATC measured the depth to groundwater in each well using an oil/water
interface probe, excluding well MW-1 that could not be accessed due to a vehicle parked over
Monitoring Report September 28, 2023
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

6
the well. Figure 2 depicts a site map with well locations. The depth to groundwater ranged from
33.30 ft-toc in MW-3 to 39.70 ft-toc in MW-5. Depth to groundwater and elevation data are
summarized in Table 1. A groundwater elevation contour map is presented in Figure 3. Field
notes from the July 24, 2023 groundwater monitoring event are presented in Appendix B.
Based on the gauging data collected on July 24, 2023, the direction of groundwater flow at the
site appears to be to the north-northwest. The calculated hydraulic gradient between MW-3 and
MW-5 was calculated to be 0.10 feet per foot.

4.2 Groundwater Quality
On July 24, 2023, groundwater samples were collected from monitoring wells MW-02, MW-03,
MW-4 and MW-05. A three-volume well purge was implemented prior to groundwater sample
collection to ensure collection of a representative sample was collected. Upon completion of
purging activities, water quality field parameters were measured in each well. Field parameters are
included in Table 2. The water samples were collected in laboratory-supplied, preserved
containers, entered into chain-of-custody control, placed on ice, and delivered to Pace Analytical in
Huntersville, North Carolina. The groundwater samples were analyzed by EPA Method 6200B for
VOCs including oxygenates. The analytical report is included as Appendix C.

Groundwater analytical results from the July 2023 monitoring event are summarized in Table 3.
Historical groundwater analytical results are shown in Table 4. Figure 4 depicts VOC
concentrations above the 2L Standards. Groundwater analytical results indicated the following:

 No constituents were found in excess of the GCLs;
 LNAPL was not detected;
 Several other VOCs including benzene, toluene, ethylbenzene, total xylenes,
naphthalene, 1,2-dichloroethane, Isopropylbenzene, n-propylbenzene, 1,2,4-
trimethylbenzene, and 1,3,5-trimethylbenzene were detected in monitoring wells MW-2,
MW-4, and MW-5 at concentrations above the 2L Standards;
 VOCs were not detected above 2L Standards in monitoring well MW-3;
 VOC concentrations in well MW-4 seem generally stable in comparison to the March 2022
sampling event.
 EDB was reported at an estimated concentration of 8.7 ug/L in well MW-4 and less than the
reporting limits in wells MW-1, MW-3, and MW-5. Note that the concentrations are less than
the GCL of 50 µg/L and significantly less than the previous concentrations report in wells
MW-2 (2,361 µg/L) and MW-4 (69.5 µg/L).

4.3 Quality Assurance and Quality Control
As part of ATC’s quality assurance and quality control (QA and QC) measures, a data review of the
laboratory report was conducted. During the review, it was found that the samples were received
from the laboratory in acceptable condition and properly preserved. The samples were analyzed
within correct holding times and reported within the laboratory report, and the chain-of-custody was
properly completed by all parties. The laboratory QC report shows that an internal blank was
analyzed for EPA Method 6200B. The laboratory fortified blank (LFB) and laboratory control
sample (LCS) data results were also provided for EPA Method 6200B. A field blank (FB-1) was
also analyzed during the groundwater monitoring event and constituents were not detected in the
blank. Refer to the laboratory report in Appendix C for details regarding QA results for the
laboratory samples and any noted exceptions. Overall, ATC concludes that the laboratory results
are usable, and any exceptions do not significantly impact the conclusions presented in this report.
Monitoring Report September 28, 2023
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

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5.0 CONCLUSIONS AND RECOMMENDATIONS
On behalf of the Trust Fund Branch of the UST Section, ATC has completed a Groundwater
Monitoring Report documenting groundwater monitoring well sampling activities for the
Christie’s Texaco site, located at 398 North Main Street in Mooresville, Iredell County, North
Carolina. The site conditions are presented below and in the Conceptual Site Model (CSM) in
Appendix A, based on the recent and historical assessment activities:

 The current risk classification for the incident is Intermediate due to prior exceedances of
the Gross Contamination Level (GCL) for EDB in wells MW-2 and MW-4, and LNAPL in
well MW-2;
 No water supply wells have been identified within 1,000 feet of the source area, and
municipal water is available to the site and surrounding area;
 No surface water bodies are located within 500 feet of the source area;
 LNAPL was not detected;
 No constituents were found in excess of the GCLs, with the highest concentration of EDB
of 8.7 µg/L in MW-4;
 Monitoring well MW-1 could not be accessed and was not sampled. The EDB
concentrations in MW-1 have been less than the GCL since May 2018;
 Several VOCs were detected in monitoring wells MW-2, MW-4, and MW-5 at
concentrations above the 2L Standards;
 VOCs were not detected above the 2L Standards in monitoring well MW-3;
 VOC concentrations in well MW-4 seem generally stable in comparison to the March 2022
sampling event; and,
 The depths to groundwater ranged from 33.30 ft-toc in MW-3 to 39.70 ft-toc in MW-5 and
were approximately 1.5 feet higher than in March 2022. Based on the groundwater
elevations, groundwater flow is to the north-northwest.

Based on the findings of the groundwater sampling event, ATC recommends:

 Conduct a groundwater monitoring event in January 2024 (six months after the July 2023
event) to confirm that EDB concentrations remain less than the GCL and LNAPL is not
present for possible closure of the incident.

Monitoring Report
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

TABLES
TABLE 1
WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA
Christie's Texaco
398 North Main Street
Mooresville, North Carolina 28115
NCDEQ Incident #8418
12/29/2014 38.64 ------61.36
06/15/2015 38.70 ------61.30
06/19/2015 40.09 ------59.91
02/15/2016 38.15 ------61.85
08/03/2016 37.77 ------62.23
09/01/2016 37.66 ------62.34
05/01/2018 38.91 ------61.09
07/20/2018 38.15 ------61.85
08/21/2018 38.20 ------61.80
12/03/2018 37.62 37.59 0.03 62.38
01/07/2019 37.11 ------62.89
06/10/2019 35.51 ------64.49
07/15/2019 35.64 ------64.36
02/24/2020 36.43 ------63.57
02/28/2020 37.00 ------63.00
03/09/2020 36.26 ------63.74
03/12/2021 34.40 ------65.60
03/11/2022 36.90 ------63.10
07/24/2023
12/29/2014 40.47 38.96 1.51 59.90
06/15/2015 40.40 39.25 1.15 59.97
06/19/2015 40.76 ------59.61
02/15/2016 38.83 38.69 0.14 61.54
08/03/2016 38.61 38.35 0.26 61.76
09/01/2016 38.55 38.32 0.23 61.82
05/01/2018 39.87 39.31 0.56 60.50
07/20/2018 39.35 38.62 0.73 61.02
08/21/2018 39.50 38.87 0.63 60.87
12/03/2018 38.78 38.02 0.76 61.59
01/07/2019 37.75 37.69 0.06 62.62
06/10/2019 36.18 ------64.19
07/15/2019 36.33 ------64.04
02/24/2020 37.00 ------63.37
02/28/2020 38.90 ------61.47
03/09/2020 36.85 ------63.52
03/12/2021 35.03 ------65.34
03/11/2022 37.74 37.64 0.10 62.56
07/24/2023 36.12 ------64.25
07/20/2018 36.02 ------64.02
08/21/2018 36.13 ------63.91
03/09/2020 33.78 ------66.26
03/12/2021 31.89 ------68.15
03/11/2022 34.83 ------65.21
07/24/2023 33.30 ------66.74
Groundwater
Elevation
(feet)
TOC
Elevation
(feet)
Depth to
Groundwater
(feet below TOC)
Date Measured
Well Depth
(feet below
TOC)
Depth to LNAPL
(feet below TOC)
LNAPL Thickness
(feet)Well ID
Screen Interval
(feet below
TOC)
Date Installed
Well Casing
Diameter
(inches)
49.0 29 - 49 100.00
MW-3 07/13/2018 2.0 47.0 32 - 47 100.04
Not Accessible
MW-2 May 2009 2.0 49.0 29- 49 100.37
MW-1 May 2009 2.0
Page 1 of 2
TABLE 1
WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA
Christie's Texaco
398 North Main Street
Mooresville, North Carolina 28115
NCDEQ Incident #8418
Groundwater
Elevation
(feet)
TOC
Elevation
(feet)
Depth to
Groundwater
(feet below TOC)
Date Measured
Well Depth
(feet below
TOC)
Depth to LNAPL
(feet below TOC)
LNAPL Thickness
(feet)Well ID
Screen Interval
(feet below
TOC)
Date Installed
Well Casing
Diameter
(inches)
07/20/2018 39.64 ------61.23
08/21/2018 39.71 ------61.16
12/03/2018 39.00 ------61.87
01/07/2019 38.44 ------62.43
06/10/2019 37.00 ------63.87
07/15/2019 37.09 ------63.78
02/24/2020 37.74 ------63.13
02/28/2020 39.32 ------61.55
03/09/2020 37.58 ------63.29
03/12/2021 35.77 ------65.10
03/11/2022 38.41 ------62.46
07/24/2023 36.92 ------63.95
08/21/2018 38.66 ------60.45
03/09/2020 36.15 ------62.96
03/12/2021 34.44 ------64.67
03/11/2022
07/24/2023 39.70 ------59.41
Notes:
TOC = Top-of-casing
--- = Not Measured
47.0 32 - 47
Could not Open Manhole
100.87
MW-5 08/20/2018 2.0 49.0 34 - 39 99.11
MW-4 07/12/2018 2.0
Page 2 of 2
TABLE 3
RECENT GROUNDWATER ANALYTICAL RESULTS
Christie's Texaco
398 North Main Street
Mooresville, North Carolina 28115
NCDEQ Incident #8418
Well ID Date Collected
BenzeneTolueneEthylbenzeneXylene (Total)Methyl-tert-butyl etherNaphthalenetert-Butyl Alcohol1,2-Dibromoethane (EDB)1,2-DichloroethaneIsopropylbenzenen-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1 600 600 500 20 6 10 0.02 0.4 70 70 400 400
5,000 260,000 80,000 50,000 20,000 6,000 10,000 50 400 30,500 26,100 28,500 24,100
MW-2 7/24/2023 1,530 7,200 1,940 10,150 <2.7 802 <204 <7.4 <5.3 91.6 165 1,820 580
MW-3 7/24/2023 <0.079 <0.090 <0.081 <0.14 <0.053 0.65J <4.1 <0.15 <0.11 <0.11 <0.10 0.73 <0.071
MW-4 7/24/2023 762 3,370 897 5,190 <1.3 514 378J 8.7J 39.7 53.0 80.6 945 294
MW-5 7/24/2023 4.2 <0.090 <0.081 <0.14 <0.053 2.3 <4.1 <0.15 <0.11 0.77 <0.10 2.8 1.1
Notes:
1) 15A NCAC 02L 0202 Groundwater Quality Standards (2L Standards).
2) NCDEQ Division of Waste Management (DWM) Gross Contamination Levels (GCLs).
Only constituents detected above the reporting limit are shown
Concentrations are reported in micrograms per liter (µg/L)
Concentrations in bold exceed the 2L Standard
Concentrations in bold and underlined exceed the GCL
J = estimated concentration below the laboratory reporting limit
Grayed values and "<" indicate the compound was below the laboratory reporting limit
2L Standard (1)
GCL Standard (2)
Page 1 of 1
TABLE 2
FIELD PARAMETERS
Christie's Texaco
398 North Main Street
Mooresville, North Carolina 28115
NCDEQ Incident #8418
MW-1 07/24/23
MW-2 07/24/23 24.0 0.408 0.92 -5 4.6
MW-3 07/24/23 23.4 0.158 3.50 191 4.5
MW-4 07/24/23 23.9 0.193 5.38 21 5.5
MW-5 07/24/23 23.5 0.133 2.75 148 5.6
Notes:
°C = degrees Celsius
mS/cm = milliSiemens per centimeter
mg/L = milligrams per liter
ORP = oxidation-reduction potential
mV= millivolts
su = standard units
pH
(su)
Not Accessible
Well ID Sample
Date
Temperature
(°C)
Conductivity
(mS/cm)
Dissolved
Oxygen
(mg/L)
ORP
(mV)
Page 1 of 1
TABLE 4
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
Christie's Texaco
398 North Main Street
Mooresville, North Carolina 28115
NCDEQ Incident #8418
Well ID Sample
Date
BenzeneTolueneEthylbenzeneXylenes (total)Methyl-tert-butyl etherNaphthaleneAcetonetert-Butyl Alcohol2-Butanonen-Butylbenzenesec-Butylbenzenetert-ButylbenzeneChloroformo-Chlorotoluene1,2-Dibromoethane(EDB)1,2-Dichloroethane2-HexanoneIsopropylbenzenep-Isopropyltoluenen-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1 600 600 500 20 6 6,000 10 4,000 70 70 70 70 24 0.02 0.04 100 70 25 70 400 400
5,000 260,000 80,000 50,000 20,000 6,000 6,000,000 10,000 4,000,000 6,900 8,500 14,750 70,000 24,000 50 400 100,000 30,500 11,700 30,000 28,500 24,100
12/29/14 890 11,000 2,700 10,300 53 740 NA ND NA 100 <25.0 <25.0 <25.0 NA 84 NA <25.0 86 62 160 1,800 510
02/15/16 880 9,600 1,800 8,000 <50.0 660 NA ND NA 70 13 <50 <50 NA 53 NA <50.0 66 28 J 110 1,300 400
09/01/16 1,200 11,000 2,300 8,800 <100 1,500 NA ND NA 32 J <100 <100 <100 NA 110 NA <100 110 30 J 150 2,000 650
05/01/18 690 7,700 2,500 8,000 <50.0 500 <5,000 ND <500 16 J <50 <50 <50 <50 44 J <50 <50 95 15 J 140 1,400 450
12/03/18
01/07/19 831 7,320 2,010 6,780 <25.0 807 <400 ND <25.0 <25.0 <25.0 <25.0 <25.0 <25.0 <25.0 <25.0 <200 97.0 J <25.0 140 1,670 576
06/10/19 483 6,350 2,290 8,760 <31.0 805 <500 ND <310 <31.0 <31.0 <31.0 <31.0 81.7 J <31.0 <31.0 <25.0 70.9 J <31.0 118 J 1,960 712
07/15/19 606 8,470 2,650 8,990 <31.0 675 <500 ND <310 <31.0 <31.0 <31.0 <31.0 78.0 J <31.0 <31.0 <25.0 77.9 J <31.0 131 1,770 590
03/09/20 514 5,890 2,230 6,290 <25.0 738 NA ND <25.0 <25.0 <25.0 <25.0 <25.0 <25.0 37.1 <25.0 <25.0 103 NA 170 1,640 525
03/12/21 13.5 37.7 16.4 1,020 <2.5 280 NA <25.0 NA <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 NA <2.5 24.3 <2.5 681 247
03/11/22 110 3270 1270 5,060 <10.6 745 NA <670 NA <12.2 <10.0 <8.1 <8.8 <8.0 <6.8 <8.0 NA 68.8 NA 87.1 1300 410
07/24/23
12/29/14
02/15/16
09/01/16
05/01/18
12/03/18
01/07/19
06/10/19 1,220 9,820 2,160 14,200 <31.0 1,100 <500 ND <310 <31.0 <31.0 <31.0 <31.0 92.4 J 381 <31.0 <25.0 86.5 J <31.0 198 2,480 777
07/15/19 1,910 14,600 2,210 11,400 <63.0 838 <1,000 ND <630 <63.0 <63.0 <63.0 <63.0 83.3 J 409 <63.0 <500 78.3 J <63.0 170 J 1,990 626
02/24/20 2,720 12,300 2,430 13,100 <50.0 896 NA ND <500 <50.0 <50.0 <50.0 <50.0 <50.0 482 56 <500 109 NA 215 2,270 695
03/09/20 2,390 10,100 1,910 10,100 <50.0 628 NA ND <500 <50.0 <50.0 <50.0 <50.0 <50.0 364 <50.0 <500 99.2 NA 180 1,700 573
03/12/21 919 10,600 1,780 14,000 <50.0 992 NA <5,000 NA <50.0 <50.0 <50.0 <50.0 <50.0 361 <50.0 NA <50.0 89.8 <50.0 2,380 732
03/11/22
07/24/23 1,530 7,200 1,940 10,150 <2.7 802 NA <204 NA <3.3 <4.3 <4.3 <3.5 NA <7.4 <5.3 NA 92 NA 165 1,820 580
Not Sampled - Inaccessible
2L Standard (1)
GCL Standard (2)
MW-1
Not Sampled - LNAPL Thickness 0.03 feet
Not Sampled - LNAPL Thickness 0.06 feet
Not Sampled - LNAPL Thickness 0.76 feet
Not Sampled - LNAPL Thickness 0.56 feet
Not Sampled - LNAPL Thickness 0.23 feet
Not Sampled - LNAPL Thickness 0.14 feet
Not Sampled - LNAPL Thickness 1.51 feet
Not Sampled-LNAPL Thicknes 0.10 feet
MW-2
Page 1 of 2
TABLE 4
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
Christie's Texaco
398 North Main Street
Mooresville, North Carolina 28115
NCDEQ Incident #8418
Well ID Sample
Date
BenzeneTolueneEthylbenzeneXylenes (total)Methyl-tert-butyl etherNaphthaleneAcetonetert-Butyl Alcohol2-Butanonen-Butylbenzenesec-Butylbenzenetert-ButylbenzeneChloroformo-Chlorotoluene1,2-Dibromoethane(EDB)1,2-Dichloroethane2-HexanoneIsopropylbenzenep-Isopropyltoluenen-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1 600 600 500 20 6 6,000 10 4,000 70 70 70 70 24 0.02 0.04 100 70 25 70 400 400
5,000 260,000 80,000 50,000 20,000 6,000 6,000,000 10,000 4,000,000 6,900 8,500 14,750 70,000 24,000 50 400 100,000 30,500 11,700 30,000 28,500 24,100
2L Standard (1)
GCL Standard (2)
07/20/18 0.73 3.3 0.67 3.2 <0.50 <2.0 <50.0 ND <0.50 <0.50 <0.50 <0.50 0.91 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 <0.50 0.25 J 0.15 J
03/09/20 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NA ND <5.0 <0.50 <0.50 <0.50 0.38 J <0.50 <0.50 <0.50 2.3 J <0.50 NA <0.50 <0.50 <0.50
03/12/21 <0.50 <0.50 <0.50 <1.0 <0.50 1.5 J NA <50.0 NA <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NA <0.50 <0.50 <0.50 <0.50 <0.50
03/11/22 <0.34 <0.48 <0.30 <0.34 <0.42 <0.64 NA <26.8 NA <0.49 <0.40 <0.32 <0.35 <0.32 <0.27 <0.32 NA <0.33 NA <0.34 <0.50 <0.33
07/24/23 <0.079 <0.090 <0.081 <0.14 <0.053 0.65J NA <4.1 NA <0.066 <0.085 <0.086 <0.069 NA <0.15 <0.11 NA <0.11 NA <0.10 0.73 <0.071
07/20/18 2,400 9,200 1,500 7,500 <100 400 J <10,000 ND <1,000 <100 <100 <100 <100 <100 230 <100 310 J 76 J <100 100 890 300
12/03/18 2,560 11,100 1,710 9,350 <31.0 555 1,380 J ND 733 <31.0 <31.0 <31.0 <31.0 45.6 J 200 81.9 J <25.0 79.9 J <31.0 128 J 1,210 358
01/07/19 1,280 5,480 912 4,980 <25.0 298 776 J ND 452 J <25.0 <25.0 <25.0 <25.0 26.7 J 114 41.8 J <200 42.2 J <25.0 66.9 J 641 211
06/10/19 415 925 195 1,660 <3.1 218 <50 ND <31 4.3 J 4.2 J <3.1 4.9 J 18.9 21.5 10.9 J <25.0 25.8 6.7 J 21.7 510 166
07/15/19 793 3,360 815 4,910 <13.0 340 423 J ND 224 J <13.0 <13.0 <13.0 <13.0 37.0 J 64.5 18.8 J <100 45.7 J <13 80 924 289
02/24/20 804 4,070 1,450 7,490 <12.5 703 NA ND 1,310 <12.5 <12.5 <12.5 <12.5 <12.5 116 24 705 86 NA 160 1,550 505
03/09/20 1,030 3,890 891 5,080 <12.5 508 NA ND 479 <12.5 <12.5 <12.5 <12.5 <12.5 114 27 290 60 NA <12.5 1,010 332
03/12/21 9.0 3.1 2.3 148 <0.50 106 NA 149 NA <0.50 <0.50 <0.50 <0.50 <0.50 10.9 <0.50 NA <0.50 3.2 <0.50 152 62.6
03/11/22 390 2,040 770 4,470 <8.4 690 NA <536 NA <9.8 <8.0 <6.5 <7.1 <6.4 69.5 44.2 NA 47.2 NA 85.9 988 330
07/24/23 762 3,370 897 5,190 <1.3 514 NA 378J NA <1.7 <2.1 <2.1 <1.7 NA 8.7J 39.7 NA 53.0 NA 80.6 945 294
08/21/18 520 97 200 640 <5.0 270 <500 ND <50 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <50 28 <5.0 22 440 <5.0
03/09/20 74.1 1.4 <0.50 0.82 J <0.50 45.1 NA ND <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 1.6 <5.0 7.0 NA <0.50 67 28.6
03/12/21 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 NA <50.0 NA <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NA <0.50 <0.50 <0.50 <0.50 <0.50
03/11/22
07/24/23 4.2 <0.090 <0.081 <0.14 <0.053 2.3 NA <4.1 NA <0.066 <0.085 <0.086 <0.069 NA <0.15 <0.11 NA 0.77 NA <0.10 2.8 1.1
Notes:
1) 15A NCAC 02L 0202 Groundwater Quality Standards (2L Standards).
2) NCDEQ Division of Waste Management (DWM) Gross Contamination Levels (GCLs).
Only constituents detected above the reporting limit are shown
Concentrations are reported in micrograms per liter (µg/L) or parts per billion
Concentrations in bold exceed the 2L Standard
Concentrations in bold and underlined exceed the GCL
J = estimated concentration below the laboratory reporting limit
Grayed values and "<" indicate the compound was below the laboratory reporting limit
NA = Not Analyzed
ND = Not Detected
Manhole Damaged Not Accessible
MW-3
MW-4
MW-5
Page 2 of 2

Monitoring Report
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

FIGURES
SITE
500 FEET
1,000 FEET
1,500 FEET
REFERENCE: USGS 7.5-MINUTE MAP, MOORESVILLE, NORTH
CAROLINA. DATED 2016
LATITUDE:35.58622° NORTH
LONGITUDE:-80.80810° WEST
CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO.
TITLE
DATE
ASSOCIATES OF NORTH CAROLINA, P.C.
NORTH MA
IN
STREETMW-5MW-4MW-2MW-3MW-1COMMERCIALCOMMERCIALCOMMERCIALFORMERCHRISTIE'STEXACOAPPROXIMATE LOCATION OF3,000 GAL. KEROSENE USTsLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEMONITORING WELLWell IdentificationMW-1APPROXIMATE LOCATION OF550 GAL. KEROSENE USTsAPPROXIMATE LOCATION OF550 GAL. GASOLINE USTsAPPROXIMATE LOCATION OF1,000 GAL. KEROSENE USTsSCALE: 1" = 20'2005101520NFigure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2021\OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\CHRISTIE'S TEXACO\SLC0841801-SITE.DWG, FIG2
SITE MAP05/03/2021SEE LOWER LEFTCHRISTIE'S TEXACO
398 NORTH MAIN STREET
MOORESVILLE, IREDELL COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #8418
SLC0841801AS SHOWNDH
SS2NOTES:
1.Features shown are not an authoritative location, nor are they presented
to a stated accuracy.
COORDINATE SYSTEM:
NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET
NORTH MA
IN
STREETMW-5MW-4MW-2MW-3MW-1COMMERCIALCOMMERCIALCOMMERCIALFORMERCHRISTIE'STEXACOAPPROXIMATE LOCATION OF3,000 GAL. KEROSENE USTsLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEAPPROXIMATE LOCATION OF550 GAL. KEROSENE USTsAPPROXIMATE LOCATION OF550 GAL. GASOLINE USTsAPPROXIMATE LOCATION OF1,000 GAL. KEROSENE USTs66.0GROUNDWATER ELEVATION CONTOUR(DASHED WHERE INFERRED)GROUNDWATER FLOW DIRECTIONMW-265.34MONITORING WELLWell IdentificationRelative Groundwater Elevation (ft)59.4163.9564.2566.74NMSCALE: 1" = 20'05101520N66
.0
6
4
.062.060.
0
Figure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2023\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\CHRISTIE'S TEXACO\SLC0841801-POT.DWG, FIG3
GROUNDWATER ELEVATION CONTOUR MAP08/04/2023SEE LOWER LEFTCHRISTIE'S TEXACO
398 NORTH MAIN STREET
MOORESVILLE, IREDELL COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #8418
SLC0841801AS SHOWNDH
SS3NOTES:
1.Features shown are not an authoritative location, nor are they presented
to a stated accuracy.
COORDINATE SYSTEM:
NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET
NORTH MA
IN
STREETMW-5MW-4MW-2MW-3MW-1COMMERCIALCOMMERCIALCOMMERCIALFORMERCHRISTIE'STEXACOAPPROXIMATE LOCATION OF3,000 GAL. KEROSENE USTsLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEAPPROXIMATE LOCATION OF550 GAL. KEROSENE USTsAPPROXIMATE LOCATION OF550 GAL. GASOLINE USTsAPPROXIMATE LOCATION OF1,000 GAL. KEROSENE USTsSCALE: 1" = 20'05101520NMW-1MONITORING WELLWell IdentificationFigure:Drawing File:
Project Number:
Ckd. By:
Drn. By:
App'd By:
Ckd. Date:Scale:Date:H:\2023\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\CHRISTIE'S TEXACO\SLC0841801-GW.DWG, FIG4
GROUNDWATER QUALITY MAP08/04/2023SEE LOWER LEFTCHRISTIE'S TEXACO
398 NORTH MAIN STREET
MOORESVILLE, IREDELL COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #8418
SLC0841801AS SHOWNDH
VH4NOTES:
1.Features shown are not an authoritative location, nor are they presented
to a stated accuracy.
COORDINATE SYSTEM:
NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET

Monitoring Report
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

APPENDIX A

CONCEPTUAL SITE MODEL
Site Name: Christie's Texaco Date:8/3/2023
Property Owner:BCC Investments, LLC Last Field Event Date:7/24/2023
Site Name:Christie's Texaco Release Discovery Date:1/1/1991
NCDEQ UST Incident No.:8418 Source of Release:UST System
Facility ID No.:0-017445 Estimated Volume of Release:Unknown
Risk Classification:Intermediate
Risk Rank:I0140D Gasoline (leaded)NA
Site Address:398 North Main Street Gasoline (unleaded)X
Site City, ST ZIP:Mooresville, NC 28115 Gasoline (ethanol blend)NA
Site County:Mecklenburg Diesel NA
NCDEQ Regional Office:Mooresville Kerosene X
Active UST Facility:No Heating Oil (#2)NA
USTs Present:No Heating Oil (>#2)NA
Motor Oil NA
Hydraulic Oil NA
Major Soil Type:Clayey silts / silty clays (saprolite)Used Oil X
Surface Cover over impacted soil:Y
Utilities within plume (Y/N/U):U
>S-W MSCCs (Y/N/U):U
>Residential MSCCs (Y/N/U):U Site (Current):Vacant
>Comm/Ind MSCCs (Y/N/U):U Site (Future):Vacant
North Adjacent:Commercial
East Adjacent:Commercial
Litho-Tectonic Zone Charlotte Belt South Adjacent:Commercial
Geologic Formation Unknown West Adjacent:Commercial
Rock Type amphibolite and biotite gneiss
Depth to Bedrock (ft bgs)>49 Municipal Water (Y/N/U):Y
Active Potable Wells <1000 ft (#/U):N
Active Potable Wells <500 ft (#/U):N
Depth to water (ft-bgs)33-39 Impacted Wells (Y/N/U):N
Gradient (ft/ft):0.16 (Source area)Any wells <250 ft (Y/N/U):N
Direction (N E S W combo):N-NW
Hydraulic Conductivity (ft/day):Unknown <500 ft (Y/N):N
Total Porosity (%):Unknown Type of Surface Water:Creek
Effective Porosity (%):Unknown Name of Nearest Stream:Reeds Creek
Flow Rate (ft/year):Unknown Stream Classification:SB
COCs >2L (Y/N/U):Y Impacted Surface Water (Y/N/U):N
COCs >2L Extent Defined (Y/N):N
COCs >GCLs (Y/N/U):N
COCs >GCLs (Wells):N >LEL in Structures:U
COCs >GCLs Extent Defined (Y/N):Y Vapors in Buildings:U
COCs >2B Standards by 10X (Y/N/U):N Slab-on-grade or Crawlspace:Slab-on-grade
LNAPL (Y/N/U):N Dissolved VOCs <5 ft of Structures:N (>5 ft vertically)
LNAPL (Max Thickness ft):N LNAPL <15 ft of Structures:N
LNAPL (Wells):N Basement <30 ft of Dissolved COCs:N
LNAPL Extent Defined (Y/N):NA
LNAPL (<5 ft beneath buildings/U):Unknown
Utilities within plume (Y/N/U):Unknown
Alternative Water Source:NA
NORP:NA
Site Remediation:NA
Soil Excavation:NA
AFVR:NA
MMPE:NA
SVE/AS:NA
Other:NA
Additional Support Documentation Available / Data Gaps:
Should Fate and Transport modelling be appropriate in the future, slug tests for
aquifer characterization will need to be performed.
Approach (general discussion):
Additional GWS to monitor for return
of LNAPL and possible Fate and
Transport modelling.
Surface Water
Land Use / Zoning
This site may be a candidate for Fate and Transport modelling if LNAPL does not
return and contituent concentrations remain below GCLs.
CONCEPTUAL SITE MODEL
Soil Information
Possible Path(s) to Closure
Site Information Release Information
Petroleum Type Released
Geologic Information
Groundwater Information
Comments:
Receptor Information
Water Supply
Vapor
Page 1 of 1

Monitoring Report
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

APPENDIX B

FIELD NOTES AND PHOTOGRAPHS

ATC Associates of North Carolina, P.C.
7076 Whitehall Executive Center Dr.
Suite 800
Charlotte, NC 28273
[phone]
PHOTOGRAPHIC LOG
ATC PROJECT #: STL0841801
REVIEWED BY: AQ SCALE: NTS DATE: 07/2023
Christie’s Texaco
398 N Main St
Mooresville, Iredell County, North Carolina
NCDEQ Incident #: 8148
Photo #2: MW-1 with vehicle over the well.
Photo #1: Store front
ATC Associates of North Carolina, P.C.
7076 Whitehall Executive Center Dr.
Suite 800
Charlotte, NC 28273
[phone]
PHOTOGRAPHIC LOG
ATC PROJECT #: STL0841801
REVIEWED BY: AQ SCALE: NTS DATE: 07/2023
Christie’s Texaco
398 N Main St
Mooresville, Iredell County, North Carolina
NCDEQ Incident #: 8148
Photo #4: MW-3
Photo #3: MW-2
ATC Associates of North Carolina, P.C.
7076 Whitehall Executive Center Dr.
Suite 800
Charlotte, NC 28273
[phone]
PHOTOGRAPHIC LOG
ATC PROJECT #: STL0841801
REVIEWED BY: AQ SCALE: NTS DATE: 07/2023
Christie’s Texaco
398 N Main St
Mooresville, Iredell County, North Carolina
NCDEQ Incident #: 8148
Photo #6: MW-5
Photo #5: MW-4

Monitoring Report
Christie’s Texaco, NCDEQ Incident #8418 ATC Project #STL0841801

APPENDIX C

LABORATORY ANALYTICAL REPORT

#=CL#
August 01, 2023
LIMS USE: FR - NOELLE FRANCE
LIMS OBJECT ID: 92679079
92679079
Project:
Pace Project No.:
RE:
Noelle France
ATC Group Services LLC- South Charlotte
7606 Whitehall Exe Center Dr
Suite 800
Charlotte, NC 28273
Christies Texaco
Dear Noelle France:
Enclosed are the analytical results for sample(s) received by the laboratory on July 25, 2023. The results relate only to the
samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services - Charlotte
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Taylor M Cannon
[e-mail]
Project Manager
[phone]
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 1 of 27
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92679079
Christies Texaco
Pace Analytical Services Charlotte
South Carolina Laboratory ID: 99006
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
South Carolina Laboratory ID: 99006
South Carolina Certification #: 99006001
South Carolina Drinking Water Cert. #: 99006003
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
Louisiana DoH Drinking Water #: LA029
Virginia/VELAP Certification #: 460221
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 2 of 27
#=SS#
SAMPLE SUMMARY
Pace Project No.:
Project:
92679079
Christies Texaco
Lab ID Sample ID Matrix Date Collected Date Received
92679079001 MW-2 Water 07/24/23 09:00 07/25/23 07:10
92679079002 MW-3 Water 07/24/23 09:47 07/25/23 07:10
92679079003 MW-4 Water 07/24/23 10:30 07/25/23 07:10
92679079004 MW-5 Water 07/24/23 11:30 07/25/23 07:10
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 3 of 27
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92679079
Christies Texaco
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92679079001 MW-2 SM 6200B 69 PASI-CSAS
92679079002 MW-3 SM 6200B 69 PASI-CSAS
92679079003 MW-4 SM 6200B 69 PASI-CSAS
92679079004 MW-5 SM 6200B 69 PASI-CSAS
PASI-C = Pace Analytical Services - Charlotte
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 4 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92679079
Christies Texaco
Sample:MW-2 Lab ID:92679079001 Collected:07/24/23 09:00 Received:07/25/23 07:10 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol <372 ug/L 07/31/23 20:31 75-85-4500037250
tert-Amylmethyl ether <6.2 ug/L 07/31/23 20:31 994-05-85006.2 50
Benzene 1530 ug/L 07/31/23 20:31 71-43-225.0 3.9 50
Bromobenzene <6.8 ug/L 07/31/23 20:31 108-86-125.0 6.8 50
Bromochloromethane <4.7 ug/L 07/31/23 20:31 74-97-525.0 4.7 50
Bromodichloromethane <8.5 ug/L 07/31/23 20:31 75-27-425.0 8.5 50
Bromoform <9.8 ug/L 07/31/23 20:31 75-25-225.0 9.8 50
Bromomethane <11.1 ug/L 07/31/23 20:31 74-83-925011.1 50
tert-Butyl Alcohol <204 ug/L 07/31/23 20:31 75-65-0250020450
n-Butylbenzene <3.3 ug/L 07/31/23 20:31 104-51-825.0 3.3 50
sec-Butylbenzene <4.3 ug/L 07/31/23 20:31 135-98-825.0 4.3 50
tert-Butylbenzene <4.3 ug/L 07/31/23 20:31 98-06-625.0 4.3 50
tert-Butyl Formate <15.0 ug/L 07/31/23 20:31 762-75-4250015.0 50
Carbon tetrachloride <8.4 ug/L 07/31/23 20:31 56-23-525.0 8.4 50
Chlorobenzene <4.2 ug/L 07/31/23 20:31 108-90-725.0 4.2 50
Chloroethane <8.6 ug/L 07/31/23 20:31 75-00-350.0 8.6 50
Chloroform <3.5 ug/L 07/31/23 20:31 67-66-325.0 3.5 50
Chloromethane <8.8 ug/L 07/31/23 20:31 74-87-350.0 8.8 50
2-Chlorotoluene <6.4 ug/L 07/31/23 20:31 95-49-825.0 6.4 50
4-Chlorotoluene <4.8 ug/L 07/31/23 20:31 106-43-425.0 4.8 50
1,2-Dibromo-3-chloropropane <9.0 ug/L 07/31/23 20:31 96-12-850.0 9.0 50
Dibromochloromethane <7.4 ug/L 07/31/23 20:31 124-48-125.0 7.4 50
1,2-Dibromoethane (EDB)<7.4 ug/L 07/31/23 20:31 106-93-425.0 7.4 50
Dibromomethane <9.4 ug/L 07/31/23 20:31 74-95-325.0 9.4 50
1,2-Dichlorobenzene <4.7 ug/L 07/31/23 20:31 95-50-125.0 4.7 50
1,3-Dichlorobenzene <4.9 ug/L 07/31/23 20:31 541-73-125.0 4.9 50
1,4-Dichlorobenzene <4.5 ug/L 07/31/23 20:31 106-46-725.0 4.5 50
Dichlorodifluoromethane <6.2 ug/L 07/31/23 20:31 75-71-825.0 6.2 50
1,1-Dichloroethane <2.8 ug/L 07/31/23 20:31 75-34-325.0 2.8 50
1,2-Dichloroethane <5.3 ug/L 07/31/23 20:31 107-06-225.0 5.3 50
1,1-Dichloroethene <3.9 ug/L 07/31/23 20:31 75-35-425.0 3.9 50
cis-1,2-Dichloroethene <5.6 ug/L 07/31/23 20:31 156-59-225.0 5.6 50
trans-1,2-Dichloroethene <5.0 ug/L 07/31/23 20:31 156-60-525.0 5.0 50
1,2-Dichloropropane <6.8 ug/L 07/31/23 20:31 78-87-525.0 6.8 50
1,3-Dichloropropane <4.3 ug/L 07/31/23 20:31 142-28-925.0 4.3 50
2,2-Dichloropropane <6.1 ug/L 07/31/23 20:31 594-20-725.0 6.1 50
1,1-Dichloropropene <3.3 ug/L 07/31/23 20:31 563-58-625.0 3.3 50
cis-1,3-Dichloropropene <4.5 ug/L 07/31/23 20:31 10061-01-525.0 4.5 50
trans-1,3-Dichloropropene <6.6 ug/L 07/31/23 20:31 10061-02-625.0 6.6 50
Diisopropyl ether <3.6 ug/L 07/31/23 20:31 108-20-325.0 3.6 50
Ethanol <252 ug/L 07/31/23 20:31 64-17-51000025250
Ethylbenzene 1940 ug/L 07/31/23 20:31 100-41-425.0 4.1 50
Ethyl-tert-butyl ether <5.6 ug/L 07/31/23 20:31 637-92-35005.6 50
Hexachloro-1,3-butadiene <17.6 ug/L 07/31/23 20:31 87-68-310017.6 50
Isopropylbenzene (Cumene)91.6 ug/L 07/31/23 20:31 98-82-825.0 5.3 50
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 5 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92679079
Christies Texaco
Sample:MW-2 Lab ID:92679079001 Collected:07/24/23 09:00 Received:07/25/23 07:10 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methylene Chloride <94.5 ug/L 07/31/23 20:31 75-09-210094.5 50
Methyl-tert-butyl ether <2.7 ug/L 07/31/23 20:31 1634-04-425.0 2.7 50
Naphthalene 802 ug/L 07/31/23 20:31 91-20-31005.0 50
n-Propylbenzene 165 ug/L 07/31/23 20:31 103-65-125.0 5.2 50
Styrene <6.8 ug/L 07/31/23 20:31 100-42-525.0 6.8 50
1,1,1,2-Tetrachloroethane <4.6 ug/L 07/31/23 20:31 630-20-625.0 4.6 50
1,1,2,2-Tetrachloroethane <3.7 ug/L 07/31/23 20:31 79-34-525.0 3.7 50
Tetrachloroethene <4.3 ug/L 07/31/23 20:31 127-18-425.0 4.3 50
Toluene 7200 ug/L 07/31/23 20:31 108-88-325.0 4.5 50
1,2,3-Trichlorobenzene <6.0 ug/L 07/31/23 20:31 87-61-61006.0 50
1,2,4-Trichlorobenzene <7.8 ug/L 07/31/23 20:31 120-82-11007.8 50
1,1,1-Trichloroethane <5.4 ug/L 07/31/23 20:31 71-55-625.0 5.4 50
1,1,2-Trichloroethane <4.8 ug/L 07/31/23 20:31 79-00-525.0 4.8 50
Trichloroethene <8.6 ug/L 07/31/23 20:31 79-01-625.0 8.6 50
Trichlorofluoromethane <7.2 ug/L 07/31/23 20:31 75-69-450.0 7.2 50
1,2,3-Trichloropropane <8.6 ug/L 07/31/23 20:31 96-18-425.0 8.6 50
1,2,4-Trimethylbenzene 1820 ug/L 07/31/23 20:31 95-63-625.0 1.5 50
1,3,5-Trimethylbenzene 580 ug/L 07/31/23 20:31 108-67-825.0 3.6 50
Vinyl chloride <7.4 ug/L 07/31/23 20:31 75-01-450.0 7.4 50
m&p-Xylene 6770 ug/L 07/31/23 20:31 179601-23-150.0 4.7 50
o-Xylene 3380 ug/L 07/31/23 20:31 95-47-625.0 7.2 50
Surrogates
1,2-Dichloroethane-d4 (S)95 %07/31/23 20:31 17060-07-070-130 50
4-Bromofluorobenzene (S)95 %07/31/23 20:31 460-00-470-130 50
Toluene-d8 (S)95 %07/31/23 20:31 2037-26-570-130 50
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92679079
Christies Texaco
Sample:MW-3 Lab ID:92679079002 Collected:07/24/23 09:47 Received:07/25/23 07:10 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol <7.4 ug/L 07/28/23 04:57 75-85-41007.4 1
tert-Amylmethyl ether <0.12 ug/L 07/28/23 04:57 994-05-810.0 0.12 1
Benzene <0.079 ug/L 07/28/23 04:57 71-43-20.50 0.079 1
Bromobenzene <0.14 ug/L 07/28/23 04:57 108-86-10.50 0.14 1
Bromochloromethane <0.094 ug/L 07/28/23 04:57 74-97-50.50 0.094 1
Bromodichloromethane <0.17 ug/L 07/28/23 04:57 75-27-40.50 0.17 1
Bromoform <0.20 ug/L 07/28/23 04:57 75-25-20.50 0.20 1
Bromomethane <0.22 ug/L 07/28/23 04:57 74-83-95.0 0.22 1
tert-Butyl Alcohol <4.1 ug/L 07/28/23 04:57 75-65-050.0 4.1 1
n-Butylbenzene <0.066 ug/L 07/28/23 04:57 104-51-80.50 0.066 1
sec-Butylbenzene <0.085 ug/L 07/28/23 04:57 135-98-80.50 0.085 1
tert-Butylbenzene <0.086 ug/L 07/28/23 04:57 98-06-60.50 0.086 1
tert-Butyl Formate <0.30 ug/L 07/28/23 04:57 762-75-450.0 0.30 1
Carbon tetrachloride <0.17 ug/L 07/28/23 04:57 56-23-50.50 0.17 1
Chlorobenzene <0.085 ug/L 07/28/23 04:57 108-90-70.50 0.085 1
Chloroethane <0.17 ug/L 07/28/23 04:57 75-00-31.0 0.17 1
Chloroform <0.069 ug/L 07/28/23 04:57 67-66-30.50 0.069 1
Chloromethane 0.19J ug/L 07/28/23 04:57 74-87-31.0 0.18 1
2-Chlorotoluene <0.13 ug/L 07/28/23 04:57 95-49-80.50 0.13 1
4-Chlorotoluene <0.096 ug/L 07/28/23 04:57 106-43-40.50 0.096 1
1,2-Dibromo-3-chloropropane <0.18 ug/L 07/28/23 04:57 96-12-81.0 0.18 1
Dibromochloromethane <0.15 ug/L 07/28/23 04:57 124-48-10.50 0.15 1
1,2-Dibromoethane (EDB)<0.15 ug/L 07/28/23 04:57 106-93-40.50 0.15 1
Dibromomethane <0.19 ug/L 07/28/23 04:57 74-95-30.50 0.19 1
1,2-Dichlorobenzene <0.094 ug/L 07/28/23 04:57 95-50-10.50 0.094 1
1,3-Dichlorobenzene <0.098 ug/L 07/28/23 04:57 541-73-10.50 0.098 1
1,4-Dichlorobenzene <0.090 ug/L 07/28/23 04:57 106-46-70.50 0.090 1
Dichlorodifluoromethane <0.12 ug/L 07/28/23 04:57 75-71-80.50 0.12 1
1,1-Dichloroethane <0.056 ug/L 07/28/23 04:57 75-34-30.50 0.056 1
1,2-Dichloroethane <0.11 ug/L 07/28/23 04:57 107-06-20.50 0.11 1
1,1-Dichloroethene <0.079 ug/L 07/28/23 04:57 75-35-40.50 0.079 1
cis-1,2-Dichloroethene <0.11 ug/L 07/28/23 04:57 156-59-20.50 0.11 1
trans-1,2-Dichloroethene <0.10 ug/L 07/28/23 04:57 156-60-50.50 0.10 1
1,2-Dichloropropane <0.14 ug/L 07/28/23 04:57 78-87-50.50 0.14 1
1,3-Dichloropropane <0.085 ug/L 07/28/23 04:57 142-28-90.50 0.085 1
2,2-Dichloropropane <0.12 ug/L 07/28/23 04:57 594-20-70.50 0.12 1
1,1-Dichloropropene <0.066 ug/L 07/28/23 04:57 563-58-60.50 0.066 1
cis-1,3-Dichloropropene <0.090 ug/L 07/28/23 04:57 10061-01-50.50 0.090 1
trans-1,3-Dichloropropene <0.13 ug/L 07/28/23 04:57 10061-02-60.50 0.13 1
Diisopropyl ether <0.072 ug/L 07/28/23 04:57 108-20-30.50 0.072 1
Ethanol <5.0 ug/L 07/28/23 04:57 64-17-52005.0 1
Ethylbenzene <0.081 ug/L 07/28/23 04:57 100-41-40.50 0.081 1
Ethyl-tert-butyl ether <0.11 ug/L 07/28/23 04:57 637-92-310.0 0.11 1
Hexachloro-1,3-butadiene <0.35 ug/L 07/28/23 04:57 87-68-32.0 0.35 1
Isopropylbenzene (Cumene)<0.11 ug/L 07/28/23 04:57 98-82-80.50 0.11 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92679079
Christies Texaco
Sample:MW-3 Lab ID:92679079002 Collected:07/24/23 09:47 Received:07/25/23 07:10 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methylene Chloride <1.9 ug/L 07/28/23 04:57 75-09-22.0 1.9 1
Methyl-tert-butyl ether <0.053 ug/L 07/28/23 04:57 1634-04-40.50 0.053 1
Naphthalene 0.65J ug/L 07/28/23 04:57 91-20-32.0 0.10 1
n-Propylbenzene <0.10 ug/L 07/28/23 04:57 103-65-10.50 0.10 1
Styrene <0.14 ug/L 07/28/23 04:57 100-42-50.50 0.14 1
1,1,1,2-Tetrachloroethane <0.091 ug/L 07/28/23 04:57 630-20-60.50 0.091 1
1,1,2,2-Tetrachloroethane <0.074 ug/L 07/28/23 04:57 79-34-50.50 0.074 1
Tetrachloroethene <0.086 ug/L 07/28/23 04:57 127-18-40.50 0.086 1
Toluene <0.090 ug/L 07/28/23 04:57 108-88-30.50 0.090 1
1,2,3-Trichlorobenzene <0.12 ug/L 07/28/23 04:57 87-61-62.0 0.12 1
1,2,4-Trichlorobenzene <0.16 ug/L 07/28/23 04:57 120-82-12.0 0.16 1
1,1,1-Trichloroethane <0.11 ug/L 07/28/23 04:57 71-55-60.50 0.11 1
1,1,2-Trichloroethane <0.096 ug/L 07/28/23 04:57 79-00-50.50 0.096 1
Trichloroethene <0.17 ug/L 07/28/23 04:57 79-01-60.50 0.17 1
Trichlorofluoromethane <0.14 ug/L 07/28/23 04:57 75-69-41.0 0.14 1
1,2,3-Trichloropropane <0.17 ug/L 07/28/23 04:57 96-18-40.50 0.17 1
1,2,4-Trimethylbenzene 0.73 ug/L 07/28/23 04:57 95-63-60.50 0.031 1
1,3,5-Trimethylbenzene <0.071 ug/L 07/28/23 04:57 108-67-80.50 0.071 1
Vinyl chloride <0.15 ug/L 07/28/23 04:57 75-01-41.0 0.15 1
m&p-Xylene <0.094 ug/L 07/28/23 04:57 179601-23-11.0 0.094 1
o-Xylene <0.14 ug/L 07/28/23 04:57 95-47-60.50 0.14 1
Surrogates
1,2-Dichloroethane-d4 (S)99 %07/28/23 04:57 17060-07-070-130 1
4-Bromofluorobenzene (S)101 %07/28/23 04:57 460-00-470-130 1
Toluene-d8 (S)103 %07/28/23 04:57 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 8 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92679079
Christies Texaco
Sample:MW-4 Lab ID:92679079003 Collected:07/24/23 10:30 Received:07/25/23 07:10 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol <186 ug/L 07/28/23 07:02 75-85-4250018625
tert-Amylmethyl ether <3.1 ug/L 07/28/23 07:02 994-05-82503.1 25
Benzene 762 ug/L 07/28/23 07:02 71-43-212.5 2.0 25
Bromobenzene <3.4 ug/L 07/28/23 07:02 108-86-112.5 3.4 25
Bromochloromethane <2.4 ug/L 07/28/23 07:02 74-97-512.5 2.4 25
Bromodichloromethane <4.2 ug/L 07/28/23 07:02 75-27-412.5 4.2 25
Bromoform <4.9 ug/L 07/28/23 07:02 75-25-212.5 4.9 25
Bromomethane <5.6 ug/L 07/28/23 07:02 74-83-91255.6 25
tert-Butyl Alcohol 378J ug/L 07/28/23 07:02 75-65-0125010225
n-Butylbenzene <1.7 ug/L 07/28/23 07:02 104-51-812.5 1.7 25
sec-Butylbenzene <2.1 ug/L 07/28/23 07:02 135-98-812.5 2.1 25
tert-Butylbenzene <2.1 ug/L 07/28/23 07:02 98-06-612.5 2.1 25
tert-Butyl Formate <7.5 ug/L 07/28/23 07:02 762-75-412507.5 25
Carbon tetrachloride <4.2 ug/L 07/28/23 07:02 56-23-512.5 4.2 25
Chlorobenzene <2.1 ug/L 07/28/23 07:02 108-90-712.5 2.1 25
Chloroethane <4.3 ug/L 07/28/23 07:02 75-00-325.0 4.3 25
Chloroform <1.7 ug/L 07/28/23 07:02 67-66-312.5 1.7 25
Chloromethane <4.4 ug/L 07/28/23 07:02 74-87-325.0 4.4 25
2-Chlorotoluene <3.2 ug/L 07/28/23 07:02 95-49-812.5 3.2 25
4-Chlorotoluene <2.4 ug/L 07/28/23 07:02 106-43-412.5 2.4 25
1,2-Dibromo-3-chloropropane <4.5 ug/L 07/28/23 07:02 96-12-825.0 4.5 25
Dibromochloromethane <3.7 ug/L 07/28/23 07:02 124-48-112.5 3.7 25
1,2-Dibromoethane (EDB)8.7J ug/L 07/28/23 07:02 106-93-412.5 3.7 25
Dibromomethane <4.7 ug/L 07/28/23 07:02 74-95-312.5 4.7 25
1,2-Dichlorobenzene <2.4 ug/L 07/28/23 07:02 95-50-112.5 2.4 25
1,3-Dichlorobenzene <2.4 ug/L 07/28/23 07:02 541-73-112.5 2.4 25
1,4-Dichlorobenzene <2.2 ug/L 07/28/23 07:02 106-46-712.5 2.2 25
Dichlorodifluoromethane <3.1 ug/L 07/28/23 07:02 75-71-812.5 3.1 25
1,1-Dichloroethane <1.4 ug/L 07/28/23 07:02 75-34-312.5 1.4 25
1,2-Dichloroethane 39.7 ug/L 07/28/23 07:02 107-06-212.5 2.6 25
1,1-Dichloroethene <2.0 ug/L 07/28/23 07:02 75-35-412.5 2.0 25
cis-1,2-Dichloroethene <2.8 ug/L 07/28/23 07:02 156-59-212.5 2.8 25
trans-1,2-Dichloroethene <2.5 ug/L 07/28/23 07:02 156-60-512.5 2.5 25
1,2-Dichloropropane <3.4 ug/L 07/28/23 07:02 78-87-512.5 3.4 25
1,3-Dichloropropane <2.1 ug/L 07/28/23 07:02 142-28-912.5 2.1 25
2,2-Dichloropropane <3.0 ug/L 07/28/23 07:02 594-20-712.5 3.0 25
1,1-Dichloropropene <1.6 ug/L 07/28/23 07:02 563-58-612.5 1.6 25
cis-1,3-Dichloropropene <2.2 ug/L 07/28/23 07:02 10061-01-512.5 2.2 25
trans-1,3-Dichloropropene <3.3 ug/L 07/28/23 07:02 10061-02-612.5 3.3 25
Diisopropyl ether <1.8 ug/L 07/28/23 07:02 108-20-312.5 1.8 25
Ethanol <126 ug/L 07/28/23 07:02 64-17-5500012625
Ethylbenzene 897 ug/L 07/28/23 07:02 100-41-412.5 2.0 25
Ethyl-tert-butyl ether <2.8 ug/L 07/28/23 07:02 637-92-32502.8 25
Hexachloro-1,3-butadiene <8.8 ug/L 07/28/23 07:02 87-68-350.0 8.8 25
Isopropylbenzene (Cumene)53.0 ug/L 07/28/23 07:02 98-82-812.5 2.6 25
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 9 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92679079
Christies Texaco
Sample:MW-4 Lab ID:92679079003 Collected:07/24/23 10:30 Received:07/25/23 07:10 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methylene Chloride <47.2 ug/L 07/28/23 07:02 75-09-250.0 47.2 25
Methyl-tert-butyl ether <1.3 ug/L 07/28/23 07:02 1634-04-412.5 1.3 25
Naphthalene 514 ug/L 07/28/23 07:02 91-20-350.0 2.5 25
n-Propylbenzene 80.6 ug/L 07/28/23 07:02 103-65-112.5 2.6 25
Styrene <3.4 ug/L 07/28/23 07:02 100-42-512.5 3.4 25
1,1,1,2-Tetrachloroethane <2.3 ug/L 07/28/23 07:02 630-20-612.5 2.3 25
1,1,2,2-Tetrachloroethane <1.8 ug/L 07/28/23 07:02 79-34-512.5 1.8 25
Tetrachloroethene <2.1 ug/L 07/28/23 07:02 127-18-412.5 2.1 25
Toluene 3370 ug/L 07/28/23 07:02 108-88-312.5 2.2 25
1,2,3-Trichlorobenzene <3.0 ug/L 07/28/23 07:02 87-61-650.0 3.0 25
1,2,4-Trichlorobenzene <3.9 ug/L 07/28/23 07:02 120-82-150.0 3.9 25
1,1,1-Trichloroethane <2.7 ug/L 07/28/23 07:02 71-55-612.5 2.7 25
1,1,2-Trichloroethane <2.4 ug/L 07/28/23 07:02 79-00-512.5 2.4 25
Trichloroethene <4.3 ug/L 07/28/23 07:02 79-01-612.5 4.3 25
Trichlorofluoromethane <3.6 ug/L 07/28/23 07:02 75-69-425.0 3.6 25
1,2,3-Trichloropropane <4.3 ug/L 07/28/23 07:02 96-18-412.5 4.3 25
1,2,4-Trimethylbenzene 945 ug/L 07/28/23 07:02 95-63-612.5 0.77 25
1,3,5-Trimethylbenzene 294 ug/L 07/28/23 07:02 108-67-812.5 1.8 25
Vinyl chloride <3.7 ug/L 07/28/23 07:02 75-01-425.0 3.7 25
m&p-Xylene 3420 ug/L 07/28/23 07:02 179601-23-125.0 2.3 25
o-Xylene 1770 ug/L 07/28/23 07:02 95-47-612.5 3.6 25
Surrogates
1,2-Dichloroethane-d4 (S)98 %07/28/23 07:02 17060-07-070-130 25
4-Bromofluorobenzene (S)101 %07/28/23 07:02 460-00-470-130 25
Toluene-d8 (S)107 %07/28/23 07:02 2037-26-570-130 25
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92679079
Christies Texaco
Sample:MW-5 Lab ID:92679079004 Collected:07/24/23 11:30 Received:07/25/23 07:10 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
tert-Amyl Alcohol <7.4 ug/L 07/28/23 05:14 75-85-41007.4 1
tert-Amylmethyl ether <0.12 ug/L 07/28/23 05:14 994-05-810.0 0.12 1
Benzene 4.2 ug/L 07/28/23 05:14 71-43-20.50 0.079 1
Bromobenzene <0.14 ug/L 07/28/23 05:14 108-86-10.50 0.14 1
Bromochloromethane <0.094 ug/L 07/28/23 05:14 74-97-50.50 0.094 1
Bromodichloromethane <0.17 ug/L 07/28/23 05:14 75-27-40.50 0.17 1
Bromoform <0.20 ug/L 07/28/23 05:14 75-25-20.50 0.20 1
Bromomethane <0.22 ug/L 07/28/23 05:14 74-83-95.0 0.22 1
tert-Butyl Alcohol <4.1 ug/L 07/28/23 05:14 75-65-050.0 4.1 1
n-Butylbenzene <0.066 ug/L 07/28/23 05:14 104-51-80.50 0.066 1
sec-Butylbenzene <0.085 ug/L 07/28/23 05:14 135-98-80.50 0.085 1
tert-Butylbenzene <0.086 ug/L 07/28/23 05:14 98-06-60.50 0.086 1
tert-Butyl Formate <0.30 ug/L 07/28/23 05:14 762-75-450.0 0.30 1
Carbon tetrachloride <0.17 ug/L 07/28/23 05:14 56-23-50.50 0.17 1
Chlorobenzene <0.085 ug/L 07/28/23 05:14 108-90-70.50 0.085 1
Chloroethane <0.17 ug/L 07/28/23 05:14 75-00-31.0 0.17 1
Chloroform <0.069 ug/L 07/28/23 05:14 67-66-30.50 0.069 1
Chloromethane <0.18 ug/L 07/28/23 05:14 74-87-31.0 0.18 1
2-Chlorotoluene <0.13 ug/L 07/28/23 05:14 95-49-80.50 0.13 1
4-Chlorotoluene <0.096 ug/L 07/28/23 05:14 106-43-40.50 0.096 1
1,2-Dibromo-3-chloropropane <0.18 ug/L 07/28/23 05:14 96-12-81.0 0.18 1
Dibromochloromethane <0.15 ug/L 07/28/23 05:14 124-48-10.50 0.15 1
1,2-Dibromoethane (EDB)<0.15 ug/L 07/28/23 05:14 106-93-40.50 0.15 1
Dibromomethane <0.19 ug/L 07/28/23 05:14 74-95-30.50 0.19 1
1,2-Dichlorobenzene <0.094 ug/L 07/28/23 05:14 95-50-10.50 0.094 1
1,3-Dichlorobenzene <0.098 ug/L 07/28/23 05:14 541-73-10.50 0.098 1
1,4-Dichlorobenzene <0.090 ug/L 07/28/23 05:14 106-46-70.50 0.090 1
Dichlorodifluoromethane <0.12 ug/L 07/28/23 05:14 75-71-80.50 0.12 1
1,1-Dichloroethane <0.056 ug/L 07/28/23 05:14 75-34-30.50 0.056 1
1,2-Dichloroethane <0.11 ug/L 07/28/23 05:14 107-06-20.50 0.11 1
1,1-Dichloroethene <0.079 ug/L 07/28/23 05:14 75-35-40.50 0.079 1
cis-1,2-Dichloroethene <0.11 ug/L 07/28/23 05:14 156-59-20.50 0.11 1
trans-1,2-Dichloroethene <0.10 ug/L 07/28/23 05:14 156-60-50.50 0.10 1
1,2-Dichloropropane <0.14 ug/L 07/28/23 05:14 78-87-50.50 0.14 1
1,3-Dichloropropane <0.085 ug/L 07/28/23 05:14 142-28-90.50 0.085 1
2,2-Dichloropropane <0.12 ug/L 07/28/23 05:14 594-20-70.50 0.12 1
1,1-Dichloropropene <0.066 ug/L 07/28/23 05:14 563-58-60.50 0.066 1
cis-1,3-Dichloropropene <0.090 ug/L 07/28/23 05:14 10061-01-50.50 0.090 1
trans-1,3-Dichloropropene <0.13 ug/L 07/28/23 05:14 10061-02-60.50 0.13 1
Diisopropyl ether <0.072 ug/L 07/28/23 05:14 108-20-30.50 0.072 1
Ethanol <5.0 ug/L 07/28/23 05:14 64-17-52005.0 1
Ethylbenzene <0.081 ug/L 07/28/23 05:14 100-41-40.50 0.081 1
Ethyl-tert-butyl ether <0.11 ug/L 07/28/23 05:14 637-92-310.0 0.11 1
Hexachloro-1,3-butadiene <0.35 ug/L 07/28/23 05:14 87-68-32.0 0.35 1
Isopropylbenzene (Cumene)0.77 ug/L 07/28/23 05:14 98-82-80.50 0.11 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 11 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92679079
Christies Texaco
Sample:MW-5 Lab ID:92679079004 Collected:07/24/23 11:30 Received:07/25/23 07:10 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Methylene Chloride <1.9 ug/L 07/28/23 05:14 75-09-22.0 1.9 1
Methyl-tert-butyl ether <0.053 ug/L 07/28/23 05:14 1634-04-40.50 0.053 1
Naphthalene 2.3 ug/L 07/28/23 05:14 91-20-32.0 0.10 1
n-Propylbenzene <0.10 ug/L 07/28/23 05:14 103-65-10.50 0.10 1
Styrene <0.14 ug/L 07/28/23 05:14 100-42-50.50 0.14 1
1,1,1,2-Tetrachloroethane <0.091 ug/L 07/28/23 05:14 630-20-60.50 0.091 1
1,1,2,2-Tetrachloroethane <0.074 ug/L 07/28/23 05:14 79-34-50.50 0.074 1
Tetrachloroethene <0.086 ug/L 07/28/23 05:14 127-18-40.50 0.086 1
Toluene <0.090 ug/L 07/28/23 05:14 108-88-30.50 0.090 1
1,2,3-Trichlorobenzene <0.12 ug/L 07/28/23 05:14 87-61-62.0 0.12 1
1,2,4-Trichlorobenzene <0.16 ug/L 07/28/23 05:14 120-82-12.0 0.16 1
1,1,1-Trichloroethane <0.11 ug/L 07/28/23 05:14 71-55-60.50 0.11 1
1,1,2-Trichloroethane <0.096 ug/L 07/28/23 05:14 79-00-50.50 0.096 1
Trichloroethene <0.17 ug/L 07/28/23 05:14 79-01-60.50 0.17 1
Trichlorofluoromethane <0.14 ug/L 07/28/23 05:14 75-69-41.0 0.14 1
1,2,3-Trichloropropane <0.17 ug/L 07/28/23 05:14 96-18-40.50 0.17 1
1,2,4-Trimethylbenzene 2.8 ug/L 07/28/23 05:14 95-63-60.50 0.031 1
1,3,5-Trimethylbenzene 1.1 ug/L 07/28/23 05:14 108-67-80.50 0.071 1
Vinyl chloride <0.15 ug/L 07/28/23 05:14 75-01-41.0 0.15 1
m&p-Xylene <0.094 ug/L 07/28/23 05:14 179601-23-11.0 0.094 1
o-Xylene <0.14 ug/L 07/28/23 05:14 95-47-60.50 0.14 1
Surrogates
1,2-Dichloroethane-d4 (S)99 %07/28/23 05:14 17060-07-070-130 1
4-Bromofluorobenzene (S)86 %07/28/23 05:14 460-00-470-130 1
Toluene-d8 (S)102 %07/28/23 05:14 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 12 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92679079
Christies Texaco
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
789627
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92679079002, 92679079003, 92679079004
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4092601
Associated Lab Samples:92679079002, 92679079003, 92679079004
Matrix:Water
AnalyzedMDL
1,1,1,2-Tetrachloroethane ug/L <0.091 0.50 07/28/23 03:090.091
1,1,1-Trichloroethane ug/L <0.11 0.50 07/28/23 03:090.11
1,1,2,2-Tetrachloroethane ug/L <0.074 0.50 07/28/23 03:090.074
1,1,2-Trichloroethane ug/L <0.096 0.50 07/28/23 03:090.096
1,1-Dichloroethane ug/L <0.056 0.50 07/28/23 03:090.056
1,1-Dichloroethene ug/L <0.079 0.50 07/28/23 03:090.079
1,1-Dichloropropene ug/L <0.066 0.50 07/28/23 03:090.066
1,2,3-Trichlorobenzene ug/L <0.12 2.0 07/28/23 03:090.12
1,2,3-Trichloropropane ug/L <0.17 0.50 07/28/23 03:090.17
1,2,4-Trichlorobenzene ug/L <0.16 2.0 07/28/23 03:090.16
1,2,4-Trimethylbenzene ug/L <0.031 0.50 07/28/23 03:090.031
1,2-Dibromo-3-chloropropane ug/L <0.18 1.0 07/28/23 03:090.18
1,2-Dibromoethane (EDB)ug/L <0.15 0.50 07/28/23 03:090.15
1,2-Dichlorobenzene ug/L <0.094 0.50 07/28/23 03:090.094
1,2-Dichloroethane ug/L <0.11 0.50 07/28/23 03:090.11
1,2-Dichloropropane ug/L <0.14 0.50 07/28/23 03:090.14
1,3,5-Trimethylbenzene ug/L <0.071 0.50 07/28/23 03:090.071
1,3-Dichlorobenzene ug/L <0.098 0.50 07/28/23 03:090.098
1,3-Dichloropropane ug/L <0.085 0.50 07/28/23 03:090.085
1,4-Dichlorobenzene ug/L <0.090 0.50 07/28/23 03:090.090
2,2-Dichloropropane ug/L <0.12 0.50 07/28/23 03:090.12
2-Chlorotoluene ug/L <0.13 0.50 07/28/23 03:090.13
4-Chlorotoluene ug/L <0.096 0.50 07/28/23 03:090.096
Benzene ug/L <0.079 0.50 07/28/23 03:090.079
Bromobenzene ug/L <0.14 0.50 07/28/23 03:090.14
Bromochloromethane ug/L <0.094 0.50 07/28/23 03:090.094
Bromodichloromethane ug/L <0.17 0.50 07/28/23 03:090.17
Bromoform ug/L <0.20 0.50 07/28/23 03:090.20
Bromomethane ug/L <0.22 5.0 07/28/23 03:090.22
Carbon tetrachloride ug/L <0.17 0.50 07/28/23 03:090.17
Chlorobenzene ug/L <0.085 0.50 07/28/23 03:090.085
Chloroethane ug/L <0.17 1.0 07/28/23 03:090.17
Chloroform ug/L <0.069 0.50 07/28/23 03:090.069
Chloromethane ug/L <0.18 1.0 07/28/23 03:090.18
cis-1,2-Dichloroethene ug/L <0.11 0.50 07/28/23 03:090.11
cis-1,3-Dichloropropene ug/L <0.090 0.50 07/28/23 03:090.090
Dibromochloromethane ug/L <0.15 0.50 07/28/23 03:090.15
Dibromomethane ug/L <0.19 0.50 07/28/23 03:090.19
Dichlorodifluoromethane ug/L <0.12 0.50 07/28/23 03:090.12
Diisopropyl ether ug/L <0.072 0.50 07/28/23 03:090.072
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 13 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92679079
Christies Texaco
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4092601
Associated Lab Samples:92679079002, 92679079003, 92679079004
Matrix:Water
AnalyzedMDL
Ethanol ug/L <5.0 200 07/28/23 03:095.0
Ethyl-tert-butyl ether ug/L <0.11 10.0 07/28/23 03:090.11
Ethylbenzene ug/L <0.081 0.50 07/28/23 03:090.081
Hexachloro-1,3-butadiene ug/L <0.35 2.0 07/28/23 03:090.35
Isopropylbenzene (Cumene)ug/L <0.11 0.50 07/28/23 03:090.11
m&p-Xylene ug/L <0.094 1.0 07/28/23 03:090.094
Methyl-tert-butyl ether ug/L <0.053 0.50 07/28/23 03:090.053
Methylene Chloride ug/L <1.9 2.0 07/28/23 03:091.9
n-Butylbenzene ug/L <0.066 0.50 07/28/23 03:090.066
n-Propylbenzene ug/L <0.10 0.50 07/28/23 03:090.10
Naphthalene ug/L <0.10 2.0 07/28/23 03:090.10
o-Xylene ug/L <0.14 0.50 07/28/23 03:090.14
sec-Butylbenzene ug/L <0.085 0.50 07/28/23 03:090.085
Styrene ug/L <0.14 0.50 07/28/23 03:090.14
tert-Amyl Alcohol ug/L <7.4 100 07/28/23 03:097.4
tert-Amylmethyl ether ug/L <0.12 10.0 07/28/23 03:090.12
tert-Butyl Alcohol ug/L <4.1 50.0 07/28/23 03:094.1
tert-Butyl Formate ug/L <0.30 50.0 07/28/23 03:090.30
tert-Butylbenzene ug/L <0.086 0.50 07/28/23 03:090.086
Tetrachloroethene ug/L <0.086 0.50 07/28/23 03:090.086
Toluene ug/L <0.090 0.50 07/28/23 03:090.090
trans-1,2-Dichloroethene ug/L <0.10 0.50 07/28/23 03:090.10
trans-1,3-Dichloropropene ug/L <0.13 0.50 07/28/23 03:090.13
Trichloroethene ug/L <0.17 0.50 07/28/23 03:090.17
Trichlorofluoromethane ug/L <0.14 1.0 07/28/23 03:090.14
Vinyl chloride ug/L <0.15 1.0 07/28/23 03:090.15
1,2-Dichloroethane-d4 (S)%100 70-130 07/28/23 03:09
4-Bromofluorobenzene (S)%99 70-130 07/28/23 03:09
Toluene-d8 (S)%101 70-130 07/28/23 03:09
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4092602LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 20.020 100 60-140
1,1,1-Trichloroethane ug/L 20.120 100 60-140
1,1,2,2-Tetrachloroethane ug/L 18.320 92 60-140
1,1,2-Trichloroethane ug/L 21.220 106 60-140
1,1-Dichloroethane ug/L 20.620 103 60-140
1,1-Dichloroethene ug/L 21.120 105 60-140
1,1-Dichloropropene ug/L 21.020 105 60-140
1,2,3-Trichlorobenzene ug/L 18.620 93 60-140
1,2,3-Trichloropropane ug/L 17.520 87 60-140
1,2,4-Trichlorobenzene ug/L 18.920 95 60-140
1,2,4-Trimethylbenzene ug/L 18.820 94 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 14 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92679079
Christies Texaco
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4092602LABORATORY CONTROL SAMPLE:
LCSSpike
1,2-Dibromo-3-chloropropane ug/L 17.920 90 60-140
1,2-Dibromoethane (EDB)ug/L 19.420 97 60-140
1,2-Dichlorobenzene ug/L 19.320 97 60-140
1,2-Dichloroethane ug/L 20.620 103 60-140
1,2-Dichloropropane ug/L 20.620 103 60-140
1,3,5-Trimethylbenzene ug/L 19.120 96 60-140
1,3-Dichlorobenzene ug/L 18.820 94 60-140
1,3-Dichloropropane ug/L 18.620 93 60-140
1,4-Dichlorobenzene ug/L 18.420 92 60-140
2,2-Dichloropropane ug/L 16.520 82 60-140
2-Chlorotoluene ug/L 18.720 94 60-140
4-Chlorotoluene ug/L 19.020 95 60-140
Benzene ug/L 19.420 97 60-140
Bromobenzene ug/L 18.720 93 60-140
Bromochloromethane ug/L 20.720 104 60-140
Bromodichloromethane ug/L 19.120 95 60-140
Bromoform ug/L 18.020 90 60-140
Bromomethane ug/L 19.820 99 60-140
Carbon tetrachloride ug/L 19.620 98 60-140
Chlorobenzene ug/L 18.920 95 60-140
Chloroethane ug/L 22.520 113 60-140
Chloroform ug/L 19.820 99 60-140
Chloromethane ug/L 21.520 108 60-140
cis-1,2-Dichloroethene ug/L 20.620 103 60-140
cis-1,3-Dichloropropene ug/L 19.020 95 60-140
Dibromochloromethane ug/L 18.820 94 60-140
Dibromomethane ug/L 19.820 99 60-140
Dichlorodifluoromethane ug/L 25.220 126 60-140
Diisopropyl ether ug/L 21.020 105 60-140
Ethanol ug/L 849800 106 60-140
Ethyl-tert-butyl ether ug/L 39.340 98 60-140
Ethylbenzene ug/L 19.220 96 60-140
Hexachloro-1,3-butadiene ug/L 16.520 82 60-140
Isopropylbenzene (Cumene)ug/L 17.420 87 60-140
m&p-Xylene ug/L 38.440 96 60-140
Methyl-tert-butyl ether ug/L 19.320 97 60-140
Methylene Chloride ug/L 21.920 110 60-140
n-Butylbenzene ug/L 18.520 93 60-140
n-Propylbenzene ug/L 18.220 91 60-140
Naphthalene ug/L 19.220 96 60-140
o-Xylene ug/L 18.420 92 60-140
sec-Butylbenzene ug/L 18.220 91 60-140
Styrene ug/L 18.720 93 60-140
tert-Amyl Alcohol ug/L 393400 98 60-140
tert-Amylmethyl ether ug/L 39.140 98 60-140
tert-Butyl Alcohol ug/L 190200 95 60-140
tert-Butyl Formate ug/L 157160 98 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 15 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92679079
Christies Texaco
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4092602LABORATORY CONTROL SAMPLE:
LCSSpike
tert-Butylbenzene ug/L 15.220 76 60-140
Tetrachloroethene ug/L 16.620 83 60-140
Toluene ug/L 18.720 94 60-140
trans-1,2-Dichloroethene ug/L 21.220 106 60-140
trans-1,3-Dichloropropene ug/L 18.920 94 60-140
Trichloroethene ug/L 19.820 99 60-140
Trichlorofluoromethane ug/L 19.720 99 60-140
Vinyl chloride ug/L 18.520 93 60-140
1,2-Dichloroethane-d4 (S)%103 70-130
4-Bromofluorobenzene (S)%93 70-130
Toluene-d8 (S)%100 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4092603MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92678978001
4092604
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 20 105 60-140117 10 3020ND21.1 23.4
1,1,1-Trichloroethane ug/L 20 109 60-140121 10 3020ND21.9 24.2
1,1,2,2-Tetrachloroethane ug/L 20 101 60-140110 9 3020ND20.1 22.0
1,1,2-Trichloroethane ug/L 20 108 60-140118 9 3020ND21.7 23.7
1,1-Dichloroethane ug/L 20 115 60-140112 2 3020ND23.0 22.4
1,1-Dichloroethene ug/L 20 122 60-140133 9 3020ND24.4 26.6
1,1-Dichloropropene ug/L 20 117 60-140127 8 3020ND23.4 25.3
1,2,3-Trichlorobenzene ug/L 20 98 60-140113 14 3020ND19.6 22.7
1,2,3-Trichloropropane ug/L 20 96 60-140105 9 3020ND19.1 21.0
1,2,4-Trichlorobenzene ug/L 20 99 60-140113 13 3020ND19.8 22.6
1,2,4-Trimethylbenzene ug/L 20 109 60-140117 7 3020ND21.8 23.3
1,2-Dibromo-3-
chloropropane ug/L 20 93 60-140107 14 3020ND18.6 21.4
1,2-Dibromoethane (EDB)ug/L 20 101 60-140113 11 3020ND20.2 22.7
1,2-Dichlorobenzene ug/L 20 99 60-140114 14 3020ND19.9 22.8
1,2-Dichloroethane ug/L 20 104 60-140114 9 3020ND20.8 22.8
1,2-Dichloropropane ug/L 20 116 60-140129 11 3020ND23.2 25.8
1,3,5-Trimethylbenzene ug/L 20 107 60-140119 10 3020ND21.4 23.7
1,3-Dichlorobenzene ug/L 20 100 60-140109 9 3020ND20.0 21.8
1,3-Dichloropropane ug/L 20 97 60-140108 11 3020ND19.5 21.6
1,4-Dichlorobenzene ug/L 20 99 60-140109 10 3020ND19.7 21.7
2,2-Dichloropropane ug/L 20 109 60-140121 10 3020ND21.8 24.1
2-Chlorotoluene ug/L 20 98 60-140111 12 3020ND19.6 22.1
4-Chlorotoluene ug/L 20 99 60-140111 12 3020ND19.7 22.2
Benzene ug/L 20 108 60-140119 10 3020ND21.7 23.9
Bromobenzene ug/L 20 100 60-140112 11 3020ND20.0 22.4
Bromochloromethane ug/L 20 109 60-140117 7 3020ND21.9 23.5
Bromodichloromethane ug/L 20 102 60-140111 9 3020ND20.4 22.3
Bromoform ug/L 20 100 60-140113 12 3020ND20.1 22.6
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 16 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92679079
Christies Texaco
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4092603MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92678978001
4092604
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Bromomethane ug/L 20 65 60-14085 27 3020ND12.9 17.0
Carbon tetrachloride ug/L 20 111 60-140121 9 3020ND22.1 24.2
Chlorobenzene ug/L 20 104 60-140115 10 3020ND20.8 23.0
Chloroethane ug/L 20 98 60-140113 14 3020ND19.6 22.6
Chloroform ug/L 20 106 60-140117 10 3020ND21.2 23.4
Chloromethane ug/L 20 115 60-140123 7 3020ND22.9 24.7
cis-1,2-Dichloroethene ug/L 20 114 60-140123 8 3020ND22.7 24.5
cis-1,3-Dichloropropene ug/L 20 105 60-140114 8 3020ND21.1 22.8
Dibromochloromethane ug/L 20 102 60-140111 8 3020ND20.5 22.1
Dibromomethane ug/L 20 110 60-140122 11 3020ND21.9 24.5
Dichlorodifluoromethane ug/L 20 119 60-140130 9 3020ND23.8 25.9
Diisopropyl ether ug/L 20 114 60-140110 3 3020ND22.9 22.1
Ethanol ug/L 800 109 60-140122 11 30800ND872976
Ethyl-tert-butyl ether ug/L 40 106 60-140106 0 3040ND42.4 42.2
Ethylbenzene ug/L 20 103 60-140113 10 3020ND20.5 22.6
Hexachloro-1,3-butadiene ug/L 20 105 60-140120 13 3020ND21.1 24.1
Isopropylbenzene
(Cumene)ug/L 20 108 60-140120 10 3020ND21.6 23.9
m&p-Xylene ug/L 40 102 60-140113 10 3040ND40.9 45.3
Methyl-tert-butyl ether ug/L 20 97 60-14099 2 3020ND19.4 19.8
Methylene Chloride ug/L 20 106 60-140106 0 3020ND21.2 21.2
n-Butylbenzene ug/L 20 104 60-140118 13 3020ND20.7 23.7
n-Propylbenzene ug/L 20 98 60-140110 11 3020ND19.6 22.0
Naphthalene ug/L 20 108 60-140111 2 3020ND21.6 22.2
o-Xylene ug/L 20 103 60-140113 9 3020ND20.6 22.6
sec-Butylbenzene ug/L 20 103 60-140117 13 3020ND20.6 23.5
Styrene ug/L 20 103 60-140115 11 3020ND20.7 23.0
tert-Amyl Alcohol ug/L 400 105 60-140119 12 30400ND421475
tert-Amylmethyl ether ug/L 40 104 60-140114 9 3040ND41.5 45.6
tert-Butyl Alcohol ug/L 200 137 60-140140 3 30200ND274281
tert-Butyl Formate ug/L P51602660-14021 30160ND41.6J 33.9J
tert-Butylbenzene ug/L 20 85 60-14097 13 3020ND17.0 19.5
Tetrachloroethene ug/L 20 106 60-140116 9 3020ND21.1 23.1
Toluene ug/L 20 103 60-140112 8 3020ND20.6 22.3
trans-1,2-Dichloroethene ug/L 20 121 60-140117 3 3020ND24.2 23.4
trans-1,3-Dichloropropene ug/L 20 104 60-140115 10 3020ND20.7 23.0
Trichloroethene ug/L 20 115 60-140127 10 3020ND23.0 25.5
Trichlorofluoromethane ug/L 20 102 60-140113 10 3020ND20.5 22.6
Vinyl chloride ug/L 20 108 60-140114 6 3020ND21.6 22.8
1,2-Dichloroethane-d4 (S)%90 70-13091
4-Bromofluorobenzene (S)%99 70-13099
Toluene-d8 (S)%98 70-13098
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 17 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92679079
Christies Texaco
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
790354
SM 6200B
SM 6200B
6200B MSV
Laboratory:Pace Analytical Services - Charlotte
Associated Lab Samples:92679079001
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4096169
Associated Lab Samples:92679079001
Matrix:Water
AnalyzedMDL
1,1,1,2-Tetrachloroethane ug/L <0.091 0.50 07/31/23 14:080.091
1,1,1-Trichloroethane ug/L <0.11 0.50 07/31/23 14:080.11
1,1,2,2-Tetrachloroethane ug/L <0.074 0.50 07/31/23 14:080.074
1,1,2-Trichloroethane ug/L <0.096 0.50 07/31/23 14:080.096
1,1-Dichloroethane ug/L <0.056 0.50 07/31/23 14:080.056
1,1-Dichloroethene ug/L <0.079 0.50 07/31/23 14:080.079
1,1-Dichloropropene ug/L <0.066 0.50 07/31/23 14:080.066
1,2,3-Trichlorobenzene ug/L <0.12 2.0 07/31/23 14:080.12
1,2,3-Trichloropropane ug/L <0.17 0.50 07/31/23 14:080.17
1,2,4-Trichlorobenzene ug/L <0.16 2.0 07/31/23 14:080.16
1,2,4-Trimethylbenzene ug/L <0.031 0.50 07/31/23 14:080.031
1,2-Dibromo-3-chloropropane ug/L <0.18 1.0 07/31/23 14:080.18
1,2-Dibromoethane (EDB)ug/L <0.15 0.50 07/31/23 14:080.15
1,2-Dichlorobenzene ug/L <0.094 0.50 07/31/23 14:080.094
1,2-Dichloroethane ug/L <0.11 0.50 07/31/23 14:080.11
1,2-Dichloropropane ug/L <0.14 0.50 07/31/23 14:080.14
1,3,5-Trimethylbenzene ug/L <0.071 0.50 07/31/23 14:080.071
1,3-Dichlorobenzene ug/L <0.098 0.50 07/31/23 14:080.098
1,3-Dichloropropane ug/L <0.085 0.50 07/31/23 14:080.085
1,4-Dichlorobenzene ug/L <0.090 0.50 07/31/23 14:080.090
2,2-Dichloropropane ug/L <0.12 0.50 07/31/23 14:080.12
2-Chlorotoluene ug/L <0.13 0.50 07/31/23 14:080.13
4-Chlorotoluene ug/L <0.096 0.50 07/31/23 14:080.096
Benzene ug/L <0.079 0.50 07/31/23 14:080.079
Bromobenzene ug/L <0.14 0.50 07/31/23 14:080.14
Bromochloromethane ug/L <0.094 0.50 07/31/23 14:080.094
Bromodichloromethane ug/L <0.17 0.50 07/31/23 14:080.17
Bromoform ug/L <0.20 0.50 07/31/23 14:080.20
Bromomethane ug/L <0.22 5.0 07/31/23 14:080.22
Carbon tetrachloride ug/L <0.17 0.50 07/31/23 14:080.17
Chlorobenzene ug/L <0.085 0.50 07/31/23 14:080.085
Chloroethane ug/L <0.17 1.0 07/31/23 14:080.17
Chloroform ug/L <0.069 0.50 07/31/23 14:080.069
Chloromethane ug/L <0.18 1.0 07/31/23 14:080.18
cis-1,2-Dichloroethene ug/L <0.11 0.50 07/31/23 14:080.11
cis-1,3-Dichloropropene ug/L <0.090 0.50 07/31/23 14:080.090
Dibromochloromethane ug/L <0.15 0.50 07/31/23 14:080.15
Dibromomethane ug/L <0.19 0.50 07/31/23 14:080.19
Dichlorodifluoromethane ug/L <0.12 0.50 07/31/23 14:080.12
Diisopropyl ether ug/L <0.072 0.50 07/31/23 14:080.072
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 18 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92679079
Christies Texaco
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK:4096169
Associated Lab Samples:92679079001
Matrix:Water
AnalyzedMDL
Ethanol ug/L <5.0 200 07/31/23 14:085.0
Ethyl-tert-butyl ether ug/L <0.11 10.0 07/31/23 14:080.11
Ethylbenzene ug/L <0.081 0.50 07/31/23 14:080.081
Hexachloro-1,3-butadiene ug/L <0.35 2.0 07/31/23 14:080.35
Isopropylbenzene (Cumene)ug/L <0.11 0.50 07/31/23 14:080.11
m&p-Xylene ug/L <0.094 1.0 07/31/23 14:080.094
Methyl-tert-butyl ether ug/L <0.053 0.50 07/31/23 14:080.053
Methylene Chloride ug/L <1.9 2.0 07/31/23 14:081.9
n-Butylbenzene ug/L <0.066 0.50 07/31/23 14:080.066
n-Propylbenzene ug/L <0.10 0.50 07/31/23 14:080.10
Naphthalene ug/L <0.10 2.0 07/31/23 14:080.10
o-Xylene ug/L <0.14 0.50 07/31/23 14:080.14
sec-Butylbenzene ug/L <0.085 0.50 07/31/23 14:080.085
Styrene ug/L <0.14 0.50 07/31/23 14:080.14
tert-Amyl Alcohol ug/L <7.4 100 07/31/23 14:087.4
tert-Amylmethyl ether ug/L <0.12 10.0 07/31/23 14:080.12
tert-Butyl Alcohol ug/L <4.1 50.0 07/31/23 14:084.1
tert-Butyl Formate ug/L <0.30 50.0 07/31/23 14:080.30
tert-Butylbenzene ug/L <0.086 0.50 07/31/23 14:080.086
Tetrachloroethene ug/L <0.086 0.50 07/31/23 14:080.086
Toluene ug/L <0.090 0.50 07/31/23 14:080.090
trans-1,2-Dichloroethene ug/L <0.10 0.50 07/31/23 14:080.10
trans-1,3-Dichloropropene ug/L <0.13 0.50 07/31/23 14:080.13
Trichloroethene ug/L <0.17 0.50 07/31/23 14:080.17
Trichlorofluoromethane ug/L <0.14 1.0 07/31/23 14:080.14
Vinyl chloride ug/L <0.15 1.0 07/31/23 14:080.15
1,2-Dichloroethane-d4 (S)%98 70-130 07/31/23 14:08
4-Bromofluorobenzene (S)%97 70-130 07/31/23 14:08
Toluene-d8 (S)%94 70-130 07/31/23 14:08
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4096170LABORATORY CONTROL SAMPLE:
LCSSpike
1,1,1,2-Tetrachloroethane ug/L 18.920 94 60-140
1,1,1-Trichloroethane ug/L 17.420 87 60-140
1,1,2,2-Tetrachloroethane ug/L 18.220 91 60-140
1,1,2-Trichloroethane ug/L 16.320 82 60-140
1,1-Dichloroethane ug/L 16.520 83 60-140
1,1-Dichloroethene ug/L 16.920 84 60-140
1,1-Dichloropropene ug/L 17.520 87 60-140
1,2,3-Trichlorobenzene ug/L 18.820 94 60-140
1,2,3-Trichloropropane ug/L 17.520 88 60-140
1,2,4-Trichlorobenzene ug/L 19.120 96 60-140
1,2,4-Trimethylbenzene ug/L 17.920 89 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 19 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92679079
Christies Texaco
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4096170LABORATORY CONTROL SAMPLE:
LCSSpike
1,2-Dibromo-3-chloropropane ug/L 17.420 87 60-140
1,2-Dibromoethane (EDB)ug/L 18.520 93 60-140
1,2-Dichlorobenzene ug/L 19.320 97 60-140
1,2-Dichloroethane ug/L 17.520 88 60-140
1,2-Dichloropropane ug/L 17.220 86 60-140
1,3,5-Trimethylbenzene ug/L 18.020 90 60-140
1,3-Dichlorobenzene ug/L 18.520 93 60-140
1,3-Dichloropropane ug/L 17.820 89 60-140
1,4-Dichlorobenzene ug/L 18.720 94 60-140
2,2-Dichloropropane ug/L 16.720 84 60-140
2-Chlorotoluene ug/L 17.620 88 60-140
4-Chlorotoluene ug/L 17.920 89 60-140
Benzene ug/L 17.220 86 60-140
Bromobenzene ug/L 18.620 93 60-140
Bromochloromethane ug/L 17.620 88 60-140
Bromodichloromethane ug/L 15.920 79 60-140
Bromoform ug/L 18.520 93 60-140
Bromomethane ug/L 15.020 75 60-140
Carbon tetrachloride ug/L 17.720 89 60-140
Chlorobenzene ug/L 18.420 92 60-140
Chloroethane ug/L 15.120 76 60-140
Chloroform ug/L 17.220 86 60-140
Chloromethane ug/L 14.320 72 60-140
cis-1,2-Dichloroethene ug/L 16.820 84 60-140
cis-1,3-Dichloropropene ug/L 17.620 88 60-140
Dibromochloromethane ug/L 18.320 91 60-140
Dibromomethane ug/L 19.120 96 60-140
Dichlorodifluoromethane ug/L 18.520 93 60-140
Diisopropyl ether ug/L 15.720 79 60-140
Ethanol ug/L 608800 76 60-140
Ethyl-tert-butyl ether ug/L 33.640 84 60-140
Ethylbenzene ug/L 17.420 87 60-140
Hexachloro-1,3-butadiene ug/L 18.920 95 60-140
Isopropylbenzene (Cumene)ug/L 17.820 89 60-140
m&p-Xylene ug/L 34.840 87 60-140
Methyl-tert-butyl ether ug/L 16.420 82 60-140
Methylene Chloride ug/L 15.220 76 60-140
n-Butylbenzene ug/L 17.520 87 60-140
n-Propylbenzene ug/L 17.220 86 60-140
Naphthalene ug/L 19.020 95 60-140
o-Xylene ug/L 17.020 85 60-140
sec-Butylbenzene ug/L 16.820 84 60-140
Styrene ug/L 18.220 91 60-140
tert-Amyl Alcohol ug/L 327400 82 60-140
tert-Amylmethyl ether ug/L 36.540 91 60-140
tert-Butyl Alcohol ug/L 154200 77 60-140
tert-Butyl Formate ug/L 135160 84 60-140
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 20 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92679079
Christies Texaco
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4096170LABORATORY CONTROL SAMPLE:
LCSSpike
tert-Butylbenzene ug/L 14.320 71 60-140
Tetrachloroethene ug/L 17.320 86 60-140
Toluene ug/L 17.320 86 60-140
trans-1,2-Dichloroethene ug/L 17.020 85 60-140
trans-1,3-Dichloropropene ug/L 17.720 89 60-140
Trichloroethene ug/L 18.620 93 60-140
Trichlorofluoromethane ug/L 17.020 85 60-140
Vinyl chloride ug/L 13.220 66 60-140
1,2-Dichloroethane-d4 (S)%95 70-130
4-Bromofluorobenzene (S)%97 70-130
Toluene-d8 (S)%97 70-130
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4096171MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92679660013
4096172
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
1,1,1,2-Tetrachloroethane ug/L 20 116 60-140111 5 3020ND23.2 22.1
1,1,1-Trichloroethane ug/L 20 112 60-140107 5 3020ND22.3 21.3
1,1,2,2-Tetrachloroethane ug/L 20 107 60-140101 6 3020ND21.4 20.2
1,1,2-Trichloroethane ug/L 20 97 60-14091 6 3020ND19.4 18.3
1,1-Dichloroethane ug/L 20 101 60-14096 5 3020ND20.1 19.2
1,1-Dichloroethene ug/L 20 108 60-140103 5 3020ND21.6 20.5
1,1-Dichloropropene ug/L 20 113 60-140108 5 3020ND22.6 21.5
1,2,3-Trichlorobenzene ug/L 20 116 60-140107 8 3020ND23.2 21.4
1,2,3-Trichloropropane ug/L 20 103 60-14095 8 3020ND20.6 18.9
1,2,4-Trichlorobenzene ug/L 20 117 60-140110 6 3020ND23.5 22.1
1,2,4-Trimethylbenzene ug/L 20 110 60-140103 6 3020ND21.9 20.6
1,2-Dibromo-3-
chloropropane ug/L 20 102 60-14096 6 3020ND20.5 19.2
1,2-Dibromoethane (EDB)ug/L 20 111 60-140105 6 3020ND22.2 21.0
1,2-Dichlorobenzene ug/L 20 115 60-140108 6 3020ND23.0 21.6
1,2-Dichloroethane ug/L 20 105 60-140100 5 3020ND20.9 19.9
1,2-Dichloropropane ug/L 20 103 60-14098 5 3020ND20.6 19.7
1,3,5-Trimethylbenzene ug/L 20 111 60-140104 6 3020ND22.1 20.8
1,3-Dichlorobenzene ug/L 20 115 60-140107 7 3020ND22.9 21.5
1,3-Dichloropropane ug/L 20 107 60-140101 6 3020ND21.4 20.2
1,4-Dichlorobenzene ug/L 20 113 60-140105 7 3020ND22.5 21.1
2,2-Dichloropropane ug/L 20 110 60-140103 6 3020ND21.9 20.7
2-Chlorotoluene ug/L 20 108 60-140102 6 3020ND21.7 20.5
4-Chlorotoluene ug/L 20 110 60-140102 7 3020ND21.9 20.5
Benzene ug/L 20 106 60-140102 4 3020ND21.3 20.4
Bromobenzene ug/L 20 112 60-140107 4 3020ND22.3 21.3
Bromochloromethane ug/L 20 108 60-140102 6 3020ND21.6 20.3
Bromodichloromethane ug/L 20 95 60-14092 4 3020ND19.0 18.3
Bromoform ug/L 20 111 60-140105 6 3020ND22.2 20.9
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 21 of 27
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92679079
Christies Texaco
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4096171MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92679660013
4096172
MSD
Result
MSD
% Rec RPD RPD
Max
MSDMS
Spike
Conc.
Bromomethane ug/L 20 86 60-14081 6 3020ND17.2 16.2
Carbon tetrachloride ug/L 20 116 60-140111 4 3020ND23.3 22.3
Chlorobenzene ug/L 20 113 60-140108 5 3020ND22.7 21.6
Chloroethane ug/L 20 90 60-14086 5 3020ND18.1 17.2
Chloroform ug/L 20 105 60-14098 7 3020ND21.0 19.7
Chloromethane ug/L 20 85 60-14080 7 3020ND17.1 15.9
cis-1,2-Dichloroethene ug/L 20 102 60-14096 6 3020ND20.4 19.2
cis-1,3-Dichloropropene ug/L 20 104 60-14099 5 3020ND20.8 19.8
Dibromochloromethane ug/L 20 110 60-140105 5 3020ND21.9 20.9
Dibromomethane ug/L 20 115 60-140110 4 3020ND23.0 22.1
Dichlorodifluoromethane ug/L 20 118 60-140111 7 3020ND23.7 22.2
Diisopropyl ether ug/L 20 93 60-14087 7 3020ND18.5 17.3
Ethanol ug/L 800 87 60-14084 4 30800ND697669
Ethyl-tert-butyl ether ug/L 40 99 60-14094 6 3040ND39.7 37.4
Ethylbenzene ug/L 20 109 60-140104 5 3020ND21.8 20.8
Hexachloro-1,3-butadiene ug/L 20 134 60-140120 11 3020ND26.8 24.0
Isopropylbenzene
(Cumene)ug/L 20 112 60-140106 6 3020ND22.5 21.1
m&p-Xylene ug/L 40 109 60-140103 6 3040ND43.7 41.1
Methyl-tert-butyl ether ug/L 20 95 60-14091 5 3020ND19.0 18.1
Methylene Chloride ug/L 20 90 60-14084 7 3020ND18.0 16.8
n-Butylbenzene ug/L 20 114 60-140106 8 3020ND22.9 21.2
n-Propylbenzene ug/L 20 109 60-140101 7 3020ND21.8 20.3
Naphthalene ug/L 20 111 60-140106 5 3020ND22.2 21.1
o-Xylene ug/L 20 106 60-140100 5 3020ND21.1 20.1
sec-Butylbenzene ug/L 20 109 60-140101 7 3020ND21.8 20.2
Styrene ug/L 20 109 60-140105 5 3020ND21.9 20.9
tert-Amyl Alcohol ug/L 400 94 60-14089 6 30400ND376355
tert-Amylmethyl ether ug/L 40 108 60-140103 5 3040ND43.1 41.2
tert-Butyl Alcohol ug/L 200 93 60-14093 1 30200ND187185
tert-Butyl Formate ug/L 160 87 60-14073 18 30160ND140116
tert-Butylbenzene ug/L 20 92 60-14085 8 3020ND18.3 16.9
Tetrachloroethene ug/L 20 116 60-140109 6 3020ND23.2 21.9
Toluene ug/L 20 108 60-140104 4 3020ND21.6 20.7
trans-1,2-Dichloroethene ug/L 20 106 60-14099 7 3020ND21.3 19.9
trans-1,3-Dichloropropene ug/L 20 104 60-14099 4 3020ND20.7 19.8
Trichloroethene ug/L 20 117 60-140114 3 3020ND23.4 22.7
Trichlorofluoromethane ug/L 20 112 60-140107 5 3020ND22.4 21.3
Vinyl chloride ug/L 20 85 60-14078 8 3020ND17.0 15.7
1,2-Dichloroethane-d4 (S)%94 70-13094
4-Bromofluorobenzene (S)%96 70-13097
Toluene-d8 (S)%96 70-13096
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 22 of 27
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92679079
Christies Texaco
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as
"Total" may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
ANALYTE QUALIFIERS
The EPA or method required sample preservation degrades this compound, therefore acceptable recoveries may not be
achieved in sample matrix spikes.P5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 23 of 27
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92679079
Christies Texaco
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92679079001 790354MW-2 SM 6200B
92679079002 789627MW-3 SM 6200B
92679079003 789627MW-4 SM 6200B
92679079004 789627MW-5 SM 6200B
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 08/01/2023 01:41 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
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