MO-9367_40819_CA_MRP_20230607

CORRECTIVE ACTION PERFORMANCE REPORT

CIRCLE K NO. 2720828
10329 Park Road
Charlotte, North Carolina

NCDEQ UST Facility No. 33712
NCDEQ Incident No. 40819
ATC Project No. CIRK082808

Submitted On:
June 5, 2023

Prepared for:
Mr. Brent Puzak
Environmental Manager

Circle K Stores Inc.
1100 Situs Court
Suite 100
Raleigh, North Carolina 27606

Prepared by:

ATC Associates of North Carolina, P.C.

7606 Whitehall Executive Center Drive
Charlotte, North Carolina 28273
tel [phone]
fax [phone]
www.atcassociates.com

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EXECUTIVE SUMMARY

ATC has completed an Annual Monitoring Report at the Circle K Store 2720828, located at 10329
Park Road, in Charlotte, Mecklenburg County, North Carolina. Assessment activities conducted
from November 2022 through February 2023 included the installation of three Type II monitoring
wells, a 96-hour Mobile Multi-Phase Extraction (MMPE) event, a groundwater sampling event,
and confirmation gauging activities in accordance with the Pre-Approval Task Authorization
(PATA) number 40819-06, approved on August 9, 2022, and a change order approved on October
24, 2022.

The site is currently an active convenience store and gas station with petroleum retail and
operates two 10,000-gallon gasoline underground storage tanks (USTs) and one 10,000-gallon
diesel UST. A release from the UST system was reported on May 4, 2018. Water supply wells
have not been identified within 1,500-feet of the property. ATC has conducted multiple phases of
assessment and remediation activities since that time.

Results of previous and current assessment activities indicate the following:
 The nearest surface water body is an unnamed tributary of McMullen Creek, located
approximately 1,000 feet to the east of the source area.
 Light nonaqueous phase liquid (LNAPL) is present and has ranged in thickness from 14.15
feet to 0.06 feet since discovery.
 On November 3 and 4, 2022, ATC supervised the installation of Type II monitoring wells
MW-12, MW-13 and MW-14, to evaluate the presence of LNAPL and GCL exceedances
to the east and southeast of the source area.
 On December 5, 2022, a 96-hour MMPE event was conducted, using monitoring wells
MW-1, MW-5, MW-7, MW-8, MW-10, MW-11, and recovery well RW-1 as target extraction
wells.
o The MMPE event generated approximately 4,980 gallons of fluids, including 102
gallons of free-phase LNAPL, and recovered approximately 131.71 gallons of
volatile organic compounds (VOCs) as vapor.
 On February 13, 2023, monitoring wells MW-1 through MW-8, TW-1, and RW-1 were
gauged for liquid levels and total well depths. LNAPL thickness was measured in wells
MW-1 at 0.18 feet, MW-5 at 0.21 feet, MW-7 at 0.23 feet, MW-8 at 0.45 feet, MW-9 at 2.02
feet, MW-10 at 0.39 feet, MW-11 at 0.81 feet, and RW-1 at 1.53 feet.
 On February 13, 2023, ATC sampled monitoring wells MW-2, MW-3, MW-4, MW-6, MW-
12, MW-13, MW-14, and TW-1. Monitoring wells MW-1, MW-5, MW-7, MW-8, MW-9, MW-
10, MW-11, and RW-1 were not sampled on February 13, 2023 due to the presence of
measurable LNAPL.
 Dry-cleaning solvent tetrachlorethylene (PCE) was detected above the Gross
Contamination Level (GCL) in monitoring well MW-3, and above North Carolina 2L
Groundwater Quality Standards as defined in Title 15A, NCAC, Subchapter 2L, Part .0202
(2L Standard) in wells MW-7 and TW-1, and trichloroethylene (TCE) was detected above
2L Standards in the same three wells.
 Monitoring wells MW-2, MW-3, MW-6, MW-7, and TW-1 contained multiple petroleum
constituents in excess of the 2L Standards.
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 Petroleum constituents were not detected above the laboratory detection limits in well
MW-4.

TCE and PCE are chemicals typically detected in solvent releases. ATC does not have any
evidence of a solvent release on the Circle K Store 2720828 property. Therefore, any TCE or
PCE detected in the groundwater samples collected at the Circle K Store 2720828 are assumed
to not be related to the UST release.

Dissolved-phase petroleum contamination in groundwater appears to be adequately horizontally
delineated. However, the increase of VOCs in MW-2 and TW-1 and the presence of LNAPL in
MW-8 may indicate the contaminant plume is migrating downgradient to the east-northeast.

Based on the findings of the current and previous site activities, ATC recommends the following:

 Install an additional Type III monitoring well down gradient in the vicinity of MW-12 to
monitor vertical plume migration in the downgradient direction.
 Install additional recovery wells and possibly air sparge wells in the source area to be used
in future combined air sparge (AS) and MMPE events in order to remove LNAPL, vapors,
and petroleum impacted groundwater.
 The first new recovery well (RW-2) is proposed to be installed in the vicinity of MW-8 and
MW-9, north of RW-1 towards Park Road. The second new well (RW-3) is proposed to be
installed just north of the dispenser canopy in the vicinity of wells TW-1 and MW-11.
 The first air sparge well (AS-1) is proposed to be installed in the vicinity of MW-7 outside
of the canopy island in an effort to provide hydraulic control of the LNAPL plume from
migrating down or side gradient and to enhance LNAPL and VOC recovery during MMPE
events. The second air sparge well (AS-2) is proposed to be installed in the vicinity of MW-
10 in an effort to provide hydraulic control of the LNAPL plume from migrating
downgradient enhance LNAPL and VOC recovery during MMPE events.
 Conduct two combined MMPE/AS events, the first utilizing wells RW-1, MW-5, MW-8,
MW-9, MW-10, and the newly installed RW-2 as the target extraction wells. The second
event should utilize MW-7, MW-1, MW-11, and the newly installed RW-3 as target
extraction wells. The newly installed air sparge wells will be used during each MMPE/AS
event.
 Complete a comprehensive groundwater monitoring event approximately 30 days after
the MMPE/AS events and report findings in a Corrective Action Performance Report.

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TABLE OF CONTENTS
SITE INFORMATION ................................................................................................................. III
EXECUTIVE SUMMARY .......................................................................................................... IV
1.0 INTRODUCTION ............................................................................................................. 7
2.0 SITE CHARACTERIZATION AND HISTORY ................................................................. 7
2.1 Receptor Survey 7
2.2 Site History 8
3.0 GEOLOGIC FRAMEWORK ............................................................................................ 9
3.1 Site and Regional Geology 9
3.2 Site and Regional Hydrogeology 10
3.3 Hydrogeologic Investigation 10
4.0 CORRECTIVE ACTION AND ASSESSMENT .............................................................. 11
4.1 Monitoring and Recovery Well Installation 11
4.2 Mobile Multi-Phase Extraction Event 11
4.3 Liquid Level Measurements 12
4.3 Groundwater Sampling Results 12
5.0 CONCLUSIONS AND RECOMMENDATIONS ............................................................. 13
6.0 LIMITATIONS ............................................................................................................... 14
7.0 REFERENCES .............................................................................................................. 15
TABLES
Table 1: Site History - UST System and Other Release Information
Table 2: Site History – UST Owner/Operator Information
Table 3: Adjoining Property Owners
Table 4: Water Supply Wells & Other Receptor Information
Table 5: Monitoring Well Construction Information
Table 6: Groundwater Elevation Data
Table 7: Groundwater Analytical Results
Table 8: LNAPL Recovery Information
FIGURES
Figure 1: Site Location Map
Figure 2: Site Map
Figure 3: Groundwater Elevation Map
Figure 4: Benzene Isoconcentration Map
Figure 5: LNAPL Map
Figure 6: Contaminants of Concern Map

APPENDICES
Appendix A: Well Construction Records
Appendix B: MMPE Data & Emissions Calculations
Appendix C: Laboratory Analytical Report

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1.0 INTRODUCTION
This Annual Monitoring Report presents a summary of activities conducted at the site by ATC
Associates of North Carolina, PC (ATC) from November 2022 through February 2023. The Circle
K 2720828 facility is located at 10329 Park Road, Charlotte, Mecklenburg County, North Carolina
(site). Summaries of UST system and owner/operator information are included in Table 1 and
Table 2. A site vicinity map with topographic features is included as Figure 1.

The site is currently operated by Circle K Stores, Inc. as a convenience store and gas station with
petroleum retail. During field activities, the site was observed to be developed with one single-
story building, three active underground storage tanks (USTs), and one fuel canopy with three
dispenser islands. Site features are illustrated on Figure 2.

These assessment activities were conducted in accordance with the Pre-Approval Task
Authorization (PATA) number 40819-06, approved on August 9, 2022, and a change order
approved on October 24, 2022.
2.0 SITE CHARACTERIZATION AND HISTORY
The site is currently utilized as an active convenience store and gas station. The majority of the
site is covered by impervious surfacing (i.e. buildings, asphalt, concrete, etc.). Adjoining to the
north is Park Road and medical offices, with Park Cedar Drive and a CVS store bounding the
property toward the east. To the south and west is a commercial shopping center. Adjoining
property owners are summarized in Table 3.

The UST system consists of two 10,000-gallon gasoline USTs and one 10,000-gallon diesel UST,
with three associated dispensing islands. According to information obtained from the NCDEQ
“UST Registry Database”, the USTs were installed in 1989.

The site is at an elevation of approximately 608-feet above mean sea level. The general
topography of the site is relatively flat. Surface drainage generally follows the grade of the site
and ultimately discharges to a storm sewer system and/or swales.

2.1 Receptor Survey
During previous assessment activities, ATC conducted a receptor survey to identify water supply
wells, surface water bodies, and other potential receptors within 1,500-feet of the source area.
The receptor survey included reviewing a United States Geological Survey (USGS) 7.5-Minute
Quadrangle Topographic Map (Figure 1) to identify possible surface water bodies in the vicinity,
issuing questionnaires to property owners within 500 feet of the source area, and conducing a
vehicular reconnaissance. During the receptor survey, ATC did not identify water supply wells
within 1,500 feet of the property.

According to the topographic map, the nearest surface water body is an unnamed tributary of
McMullen Creek, located approximately 1,000 feet to the east of the source area, and an unnamed
tributary of Little Sugar Creek was depicted approximately 1,700 feet to the northwest of the
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source area. However, these surface water bodies were not identified during the visual
reconnaissance. Results of the receptor survey and vehicular reconnaissance are summarized in
Table 4.

2.2 Site History
In April 2018, ATC completed limited site check activities associated with the Unleaded and Diesel
spill buckets, which reportedly failed hydrostatic testing and were suspected to have contributed
to a release at the site. Soil sampling associated with the Diesel spill bucket indicated Total
Petroleum Hydrocarbons - Gasoline Range Organics (TPH-GRO) and TPH - Diesel Range
Organics (DRO) were detected at concentrations in excess of the applicable NCDEQ Action
Levels. A release was reported associated with the diesel fuel spill bucket.

In July 2018, ATC completed a Phase I Limited Site Assessment (LSA), and installed monitoring
well, MW-1, adjacent to the diesel spill bucket. When ATC returned to the site to collect a
groundwater sample, light non-aqueous phase liquid (LNAPL) was measured at a thickness of
6.45 feet, and no groundwater sample was collected. Depth to water was measured to be
approximately 28 feet below ground surface (ft-bgs).

ATC completed a Comprehensive Site Assessment (CSA) and installed six monitoring wells (MW-
2 through MW-6, and TW-1) between November 19, 2018, and January 24, 2019. LNAPL was
measured in both MW-1 and MW-5. Soil samples collected from the monitoring well borings
indicated that soil contamination had been delineated in the horizontal direction and that vertical
contamination extended to the groundwater table. Groundwater samples collected during the CSA
indicated multiple petroleum constituents in excess of the North Carolina 2L Groundwater Quality
Standards as defined in Title 15A, NCAC, Subchapter 2L, Part .0202 (2L Standard). Additionally,
dry cleaner solvent constituents were reported above the applicable Gross Contamination Level
(GCL) and are presumed to be associated with an unrelated release in the vicinity of the site.

In November 2019, ATC conducted a 96-hour Mobile Multi-Phase Extraction (MMPE) event using
monitoring wells MW-1 and MW-5 as target extraction wells. Approximately 5,348 gallons of total
fluids, including 107 gallons of free-phase LNAPL, and approximately 340.7 gallons of VOCs as
vapor were removed from the subsurface. Approximately 30 days after the MMPE event, ATC
conducted a groundwater sampling event. LNAPL was measured in monitoring wells MW-1 and
MW-5. The laboratory analysis indicated Tetrachloroethylene (PCE) was detected in well MW-3
in excess of the GCL. Multiple other petroleum constituents were detected at concentrations
exceeding 2L Standards in monitoring wells MW-2, MW-3, MW-6, and TW-1.

In September 2020, ATC conducted a MMPE event, which generated approximately 5,417
gallons of fluids, including 92 gallons of free-phase LNAPL, and recovered approximately 402.74
gallons of VOCs as vapor. In October 2020, ATC conducted a subsequent groundwater sampling
event. LNAPL was measured in monitoring wells MW-1 and MW-5 at a thickness of 0.94 feet and
0.37 feet, respectively. PCE was detected above the GCL in monitoring well MW-3. Monitoring
wells MW-2, MW-3, MW-6, and TW-1 contained multiple VOCs above 2L Standards. ATC
recommended installing shallow monitoring wells to the north and east of the source area and a
recovery well in the vicinity of the UST pit and using the recovery well during a MMPE.

In March 2021, ATC supervised the installation of monitoring wells MW-7, MW-8, and recovery
well RW-1, to evaluate the contaminant plume to the northeast of the source area and assist in
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recovering LNAPL and impacted groundwater during extraction events. Following installation of
the monitoring wells, ATC conducted an MMPE event using monitoring wells MW-1, MW-5, and
RW-1 as target extraction wells. The MMPE event recovered approximately total 10,000 gallons
of fluids, including 67 gallons of free-phase LNAPL, and 187.46 gallons as vapor. During the
subsequent groundwater monitoring event, LNAPL was measured in wells MW-1, MW-5, MW-8,
and RW-1 ranging from 1.71 feet to 0.43 feet in thickness. PCE was detected above the GCL in
monitoring well MW-3. Monitoring wells MW-2, MW-3, MW-6, MW-7, and TW-1 contained multiple
petroleum constituents at concentrations over 2L Standards. Based on these results, ATC
recommended the installation of three additional shallow monitoring wells and conducting a
MMPE event.

In November 2021, ATC supervised the installation of monitoring wells MW-9, MW-10, and MW-
11 to evaluate the contaminant plume to the northeast and east of the source area and assist in
recovering LNAPL and impacted groundwater during extraction events.

Following installation of the monitoring wells, on December 6, 2021, ATC conducted an MMPE
event using monitoring wells MW-1, MW-5, MW-8 through MW-11, and RW-1 as target extraction
wells. The MMPE event recovered approximately total 5,456 gallons of fluids, including 21 gallons
of free-phase LNAPL, and 129.0 gallons as vapor.

On January 4, 2022, ATC conducted a subsequent groundwater sampling event to evaluate the
effectiveness of the MMPE event. Monitoring wells MW-1 through MW-11,TW-1,and RW-1 were
gauged for liquid levels and total well depths prior to sampling activities using an oil/water interface
probe (IP). LNAPL thickness was measured in wells MW-1 at 0.54feet, MW-5 at 2.01 feet, MW-7
at 2.39 feet. MW-8 at 0.43 feet, MW-10 at 0.37 feet, MW-11 at 0.35 feet, and RW-1 at 0.17 feet.

PCE was detected in well MW-3 in excess of the GCL, along with TCE, in MW-2, MW-3, and TW-
1. Monitoring wells MW-2, MW-6, MW-9, and TW-1 contained multiple petroleum constituents at
concentrations over 2L Standards. Based on these results, ATC recommended a tank and line
tightness testing for the entire system and the installation of three additional shallow monitoring
wells and conducting a MMPE event.

3.0 GEOLOGIC FRAMEWORK
3.1 Site and Regional Geology
According to the 1985 “Geologic Map of North Carolina”, the site lies in the Charlotte Belt of the
Piedmont Physiographic Province of North Carolina, which is composed of foliated to massive
granitic rock characterized by metagabbro, metadiorite, and mafic plutonic-volcanic complexes.
The unit is locally referred to as Metamorphosed Mafic Rock. 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.

The soils are typically saprolitic and are formed by in-place weathering of bedrock and the
subsequent breakdown of associated minerals. Surficial soils observed at the site by ATC during
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drilling activities reportedly consisted of silty clay with sand to depths of approximately 10-feet below
grade. Partially weathered rock with dense silty sand was encountered from depths of approximately
10 to 38-feet below grade. Competent rock was encountered from approximately 38-feet to 60-feet
below grade, with water-producing fractures encountered between approximately 50 to 60-feet below
grade.

3.2 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.

Depth to groundwater in site monitoring wells with no history of LNAPL has ranged from
approximately 13 to 23 ft-bgs. Depth to groundwater in the source area has ranged from
approximately 17.5 to 31.5 ft-bgs and is displaced by the presence of LNAPL ranging in thickness
from 0.53 feet to 14.15 feet, not including measurements recorded at the conclusion of MMPE
events.

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 any which may be 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.

3.3 Hydrogeologic Investigation
During the CSA, three rising-head slug tests were performed in Type II monitoring wells MW-2
and MW-3, and Type III monitoring well TW-1. The hydraulic conductivity in the shallow aquifer
zone was calculated to range from 0.1953 feet/day to 0.7581 feet/day. Based on this data, the
average hydraulic conductivity in the shallow aquifer zone was calculated to be 0.4767 feet/day.
The hydraulic conductivity in the deep aquifer zone was calculated to be 0.254 feet/day.

Seepage velocity was calculated using the approximate horizontal hydraulic gradient between
monitoring wells MW-4 and MW-2 of 0.018 feet/foot and the calculated average shallow hydraulic
conductivity of 0.4767 feet/day. The assumed effective porosity value of 40% for a sandy silt
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material with partially weathered rock was obtained from the AQTESOLV website. The calculated
seepage velocity was 7.83 feet/year.
4.0 CORRECTIVE ACTION AND ASSESSMENT

4.1 Monitoring and Recovery Well Installation
On November 3 and 4, 2022, ATC supervised the installation of Type II monitoring wells MW-12,
MW-13 and MW-14, to evaluate the presence of LNAPL and GCL exceedances to the east and
southeast of the source area. ATC contracted with SAEDACCO Inc., a North Carolina certified
well contractor, to drill the borings and install the monitoring wells. The borings were drilled using
air rotary drilling methodology. The borings for monitoring wells MW-12, MW-13 and MW-14 were
completed to a depth of approximately 30 ft-bgs with a 6-inch drill bit. Monitoring well locations
are depicted on Figure 2.

Monitoring wells were installed by a North Carolina certified well contractor. They were installed
per the specifications required in North Carolina Administrative Code, Chapter 15A, Subchapter
2C, part .0108. (15A NCAC 2C .0108). The wells were completed with a 2-foot-by-2-foot concrete
pad, 8-inch diameter well vault, and capped with a lockable water-tight cap.

On February 13, 2023, following the completion of the wells, MW-12, MW-13, and MW-14 were
measured for top-of-casing (TOC) elevation relative to the existing well network. Monitoring well
construction and TOC elevation details are summarized in Table 5 and Table 6. The well
construction records are included in Appendix A.

4.2 Mobile Multi-Phase Extraction Event
On December 5, 2022, Zava Industrial, Inc. (Zava) located in Graham, North Carolina, mobilized
to the site for performance of a 96-hour MMPE event, using monitoring wells MW-1, MW-5, MW-
7, MW-8, MW-10, MW-11, and recovery well RW-1 as target extraction wells. ATC was on site to
record liquid level data from the extraction wells and supervise system set up and initiation. Prior
to starting the MMPE event, LNAPL was measured in wells MW-1, MW-5, MW-7, MW-8, MW-10,
MW-11, and RW-1 ranging in thickness from 0.57 feet in MW-10 to 4.94 feet in RW-1. ATC
personnel returned to the site on December 9, 2022, to supervise the MMPE shut down activities
and record liquid level measurements from the extraction wells. After the MMPE event was
completed, LNAPL was measured in well MW-11 and RW-1 at 0.02 feet thick, and was not
measured in wells MW-1, MW-5, MW-7, MW-8, or MW-10. A summary of current and historical
groundwater elevation data is included in Table 6.

The MMPE system actively recovered free-phase LNAPL, contaminated groundwater, and soil
vapors from monitoring wells MW-1, MW-5, MW-7, MW-8, MW-10, and MW-11, and recovery well
RW-1, for approximately 96 hours. System monitoring was provided by Zava personnel. Over the
course of the 96-hour event, approximately 4,980 gallons of fluids were recovered from wells MW-
1, MW-5, MW-7, MW-8, MW-10, MW-11, and RW-1, including approximately 102 gallons of free-
phase LNAPL, as measured in the tanker. Note that actual LNAPL recovered during the MMPE
event is likely greater than 102 gallons, as the product and water had not fully separated when
the initial measurements were made. Based on the emissions calculations provided by Zava,
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709.9 pounds (131.71 equivalent gallons) of petroleum hydrocarbons were recovered as vapor.
A copy of the MMPE report provided by Zava, including the disposal manifest, is included in
Appendix C.

A summary of LNAPL recovery efforts at the site to date is provided in Table 8. Subsequent liquid
level gauging indicates LNAPL remains present at the locations of MW-11 and RW-1. The
distribution of LNAPL at the site, based on the February 13, 2023, measurements is depicted on
Figure 5.

4.3 Liquid Level Measurements
On February 13, 2023, ATC conducted a subsequent groundwater sampling event to evaluate
the effectiveness of the MMPE event. Monitoring wells MW-1 through MW-8, TW-1, and RW-1
were gauged for liquid levels and total well depths prior to sampling activities using an oil/water
interface probe (IP). LNAPL thickness was measured in wells MW-1 (0.18 feet), MW-5 (0.21 feet),
MW-7 (0.23 feet), MW-8 (0.45 feet), MW-9 (2.02 feet), MW-10 (0.39 feet), MW-11 (0.81 feet), and
RW-1 (1.53 feet). Monitoring well construction information is included in Table 5. Current and
historical liquid level information is summarized in Table 6.

The horizontal hydraulic gradient was calculated to be 0.02186 feet/foot between monitoring wells
MW-4 and MW-12. The vertical hydraulic gradient between Type II monitoring well MW-1 and
Type III monitoring well TW-1 was calculated to be approximately 0.002355 feet/foot in the upward
direction. A groundwater elevation map depicting groundwater flow to the north-northeast is
included as Figure 3.

4.3 Groundwater Sampling Results
On February 13, 2023, ATC sampled monitoring wells MW-2, MW-3, MW-4, MW-6, MW-12, MW-
13, MW-14, and TW-1. Monitoring wells MW-1, MW-5, MW-7, MW-8, MW-9, MW-10, MW-11, and
RW-1 were not sampled on February 13, 2023 due to the presence of measurable LNAPL.
The wells were purged prior to sample collection using new, disposable PVC bailers or a
decontaminated submersible pump and new tubing, while wearing new, disposable nitrile gloves.
Purging was accomplished by removing approximately three well volumes or until the well was
purged dry and allowed to recharge. Upon sample collection, water quality parameters were
measured and recorded in the field notes.

Groundwater samples were placed into laboratory provided containers, sealed and labeled,
placed into an ice-filled cooler and submitted under chain of custody protocol to Pace for analysis
by Standard Method 6200B for VOCs and oxygenates.

Groundwater analytical results were compared to GCLs and 2L Standards. Results from the
sampling events indicated the following:
 LNAPL thickness was measured in wells MW-1 (0.18 feet), MW-5 (0.21 feet), MW-7 (0.23
feet), MW-8 (0.45 feet), MW-9 (2.02 feet), MW-10 (0.39 feet), MW-11 (0.81 feet), and RW-
1 (1.53 feet).
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 PCE was detected at concentrations greater than the GCL (700 µg/L) in well MW-3 (913
µg/L), and greater than the 2L Standard (0.7 µg/L) in wells MW-7 and TW-1.
Trichloroethylene (TCE) was detected over the 2L Standard (3 µg/L) in wells MW-3, MW-
7, and TW-1.
 Monitoring wells MW-2, MW-3, MW-6, MW-7, and TW-1 contained multiple petroleum
constituents at concentrations over 2L Standards, specifically benzene, ethylbenzene,
xylenes, MTBE, naphthalene, n-butylbenzene, isopropylbenzene, p-Isopropyltoluene, and
1,2,4-trimethylbenzene.
 Oxygenates tert-amyl alcohol (TAA) and/or tert-butyl alcohol (TBA) were detected over
the 2L Standards in wells MW-2, and TW-1.
 Well MW-4 did not contain VOCs above the laboratory method detection level.

A summary of current and historical groundwater analytical data is provided in Table 7. A benzene
isoconcentration contour map is included as Figure 4, a map depicting LNAPL thickness is
included as Figure 5, and a map depicting petroleum constituents detected above the 2L
Standard is included as Figure 6. The laboratory analytical report is included as Appendix D.
5.0 CONCLUSIONS AND RECOMMENDATIONS
From November 2022 to February 2023, ATC conducted assessment activities for the Circle K
Store 2720828, located at 10329 Park Road, in Charlotte, Mecklenburg County, North Carolina.
Assessment activities included the installation of three Type II monitoring wells, a 96-hour MMPE
event, a groundwater sampling event, and water level gauging activities. Monitoring wells MW-
12, MW-13, and MW-14 were installed to evaluate the extents of LNAPL and GCL exceedances
in the groundwater.
Prior to the MMPE event, LNAPL was measured in wells MW-1 (3.89 feet) and MW-5 (1.56 feet)
prior to starting the system. Approximately 4980-gallons of fluids were recovered from wells MW-
1, MW-5, and RW-1. At least 102 gallons of free-phase LNAPL was measured in the tanker at
shut down, with approximately 131.71 gallons of VOCs removed as vapor. The MMPE events
appear to be an effective method of LNAPL recovery.
During the subsequent groundwater monitoring event and gauging activities, LNAPL was
measured in MW-1 (2.41 feet), in MW-5 (0.51 feet), in MW-8 (0.43 feet), and in RW-1 (0.86 feet).
LNAPL thickness in wells MW-1 and MW-5 has decreased significantly since detected in 2018.
However, the presence of LNAPL in MW-8 indicates the extent of LNAPL has not been fully
delineated to the north-northeast of the source area.
Groundwater samples collected after the MMPE event indicated PCE was detected in well MW-
3 in excess of the GCL, and over the 2L Standard, along with TCE, in MW-2, MW-3, MW-7, and
TW-1. TCE and PCE are chemicals typically detected in solvent releases. ATC does not have
any evidence of a solvent release on the Circle K Store 2720828 property. Therefore, any TCE
or PCE detected in the groundwater samples collected at the Circle K Store 2720828 are assumed
to not be related to the UST release.
Corrective Action Performance Report
Circle K 2720828
Page 14

Multiple other petroleum constituents were detected at concentrations exceeding 2L Standards in
monitoring wells MW-2, MW-3, MW-6, MW-7, and TW-1. Petroleum constituents were not
detected in well MW-4.

Dissolved-phase petroleum contamination in groundwater appears to be adequately horizontally
delineated. However, the increase of VOCs in MW-2 and TW-1 and the presence of LNAPL in
MW-8 may indicate the contaminant plume is migrating downgradient to the east-northeast.

Based on the findings of the current and previous site activities, ATC recommends the following:

 Install an additional Type III monitoring well down gradient in the vicinity of MW-12 to
monitor vertical plume migration in the downgradient direction.
 Install additional recovery wells and possibly air sparge wells in the source area to be used
in future combined air sparge (AS) and MMPE events in order to remove LNAPL, vapors,
and petroleum impacted groundwater.
 The first new recovery well (RW-2) is proposed to be installed in the vicinity of MW-8 and
MW-9, north of RW-1 towards Park Road. The second new well (RW-3) is proposed to be
installed just north of the dispenser canopy in the vicinity of wells TW-1 and MW-11.
 The first air sparge well (AS-1) is proposed to be installed in the vicinity of MW-7 outside
of the canopy island in an effort to provide hydraulic control of the LNAPL plume from
migrating down or side gradient and to enhance LNAPL and VOC recovery during MMPE
events. The second air sparge well (AS-2) is proposed to be installed in the vicinity of MW-
10 in an effort to provide hydraulic control of the LNAPL plume from migrating
downgradient enhance LNAPL and VOC recovery during MMPE events.
 Conduct two combined MMPE/AS events, the first utilizing wells RW-1, MW-5, MW-8,
MW-9, MW-10, and the newly installed RW-2 as the target extraction wells. The second
event should utilize MW-7, MW-1, MW-11, and the newly installed RW-3 as target
extraction wells. The newly installed air sparge wells will be used during each MMPE/AS
event.
 Complete a comprehensive groundwater monitoring event approximately 30 days after
the MMPE/AS events and report findings in a Corrective Action Performance Report.

6.0 LIMITATIONS
This report has been prepared for the exclusive use of Circle K Stores Inc. for specific application
to the referenced site in Charlotte, North Carolina. The assessment was conducted based on the
scope-of-work and level of effort requested by the NCDEQ and with resources adequate only for
that scope-of-work. Our findings have been developed in accordance with generally accepted
standards of geology and hydrogeology practices in the State of North Carolina, available
information, and our professional judgment. No other warranty is expressed or implied.

The data that are presented in this report are indicative of conditions that existed at the precise
locations sampled and at the time the samples were collected. Additionally, the data obtained
from samples would be interpreted as being meaningful with respect to parameters indicated in
the laboratory report. No additional information can logically be inferred from these data.
Corrective Action Performance Report
Circle K 2720828
Page 15

Conclusions and recommendations set forth herein are applicable only to the facts and conditions
described at the time of this report.
7.0 REFERENCES
“Guidelines for Assessment and Corrective Action for UST Releases” completed by the UST
Section of the NCDEQ, Division of Waste Management dated December 1, 2008, with
subsequent revisions.

North Carolina Administrative Code, Title 15A, Chapter 2L.

“Guidelines for Sampling” completed by the UST Section of the NCDEQ, Division of Waste
Management dated July 15, 2008, with subsequent revisions.

ATC, May 17, 2018, “Limited Site Check Report”.

ATC, August 3, 2018, “Phase I Limited Site Assessment”.

TABLES
TABLE 1
UST SYSTEM AND RELEASE INFORMATION
CIRCLE K STORE NO. 2720828
10329 Park Road, Charlotte, NC
NCDEQ Incident #40819
Capacity Release Associated
(gallons) w/ UST System
1 Premium Gasoline 10,000 1/1/1989 Currently in Use No
2 Regular Gasoline 10,000 1/1/1989 Currently in Use No
3 Diesel 10,000 1/1/1989 Currently in Use Yes
TABLE 2
UST OWNER/OPERATOR INFORMATION
1, 2, 3 33712
State Zip
NC 27606
State Zip
NC 27606
UST ID
Number Contents Date Tank Installed Status of UST
Telephone Number
Dates of Operation
1100 Situs Ct, Suite 100
Raleigh
Dates of Operation
(mm/dd/yy to mm/dd/yy)
City Telephone Number
Raleigh [phone]
Circle K Stores, Inc. 01/01/89 to present
1101 Situs Ct
Street Address
[phone]
Name of Operator
Facility ID Number
Name of Owner
Circle K Stores, Inc. 01/01/89 to present
UST ID Number
(mm/dd/yy to mm/dd/yy)
Street Address
City
TABLE 3
ADJOINING PROPERTY OWNERS
CIRCLE K STORE NO. 2720828
10329 Park Road, Charlotte, NC
NCDEQ Incident #40819
Tax Parcel
Identification
Number (PIN)
Owner Name Owner Address Property Address
20729151 TKC Park Crossings
4500 Carmeron Valley
Parkway, Suite 400,
Charlotte, NC 28211
10340 Park Road
20728111 Kimberly A. Brueckner
10329 John's Towne Drive,
Charlotte, NC 28210
10329 John's Towne
Drive
22119402 Davis Investments, LLC 2401 South College Drive,
High Point, NC 27260
9915 Park Cedar
Drive
22119219 BVB Properties / 1415
Watermark LLC
204-C West Woodlawn
Road, Charlotte, NC 28217 10405 Park Road
TABLE 4
WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION
CIRCLE K STORE NO. 2720828
10329 Park Road, Charlotte, NC
NCDEQ Incident #40819
Well Well Owners / Well Users Property Address Owner Address
Well Use
(P/I/N)
Distance
From
Source
Area (feet)
Municipal
Water
Connection
(Y/N)
Notes:
P / I / N = Potable water supply / Irrigation / Not in use
Other Receptors (Surface Water)
Receptor ID Description Location Usage
Up or Down
Gradient
1 Unnamed tributary -
McMullen Creek East of site NA
Down
Gradient
2 Unnamed tributary - Little
Sugar Creek Northwest of site NA Up Gradient
NONE IDENTIFIED
Distance from
Source Area of
Release (ft)
1,000
1,300

TABLE 5
MONITORING WELL CONSTRUCTION INFORMATION
CIRCLE K STORE NO. 2720828
10329 Park Road, Charlote, NC
NCDEQ Incident #40819
Well ID Date
Installed
Well
Diameter (in)
Casing
Depth
(ft, BGS)
Screened
Interval (ft)
Depth of Well
(ft, BGS)
Top of
Casing
Elevation (ft)
Well Status
MW-1 07/16/18 2 20 20 - 35 35 100.00 Active
MW-2 11/19/18 2 20 20 - 35 35 101.23 Active
MW-3 11/19/18 2 19 19 - 34 34 99.12 Active
MW-4 11/19/18 2 17 17 - 32 32 98.68 Active
MW-5 11/20/18 2 18 18 - 33 33 99.34 Active
MW-6 03/04/21 2 18 17 - 32 32 96.96 Active
MW-7 03/04/21 2 30 15 - 30 30 99.72 Active
MW-8 03/04/21 2 30 15 - 30 30 100.80 Active
MW-9 11/12/21 2 15 15 - 30 30 99.68 Active
MW-10 11/12/21 2 20 20 - 35 35 102.92 Active
MW-11 11/12/21 2 15 15 - 30 30 100.52 Active
MW-12 11/04/22 2 15 15-30 30 102.79 Active
MW-13 11/03/22 2 15 15-30 30 100.03 Active
MW-14 11/03/22 2 15 15-30 30 99.59 Active
RW-1 01/24/19 4 40 10 - 40 40 100.36 Active
TW-1 11/21/18 2 40 / 50 50 - 60 60 100.28 Active
Notes:
Top of casing elevations relative to benchmark assigned an arbitrary elevation of 100.00-feet (MW-1)
MW = Type II monitoring well
TW = Type III (telescoping) monitoring well
Well ID
Date
Liquid Level
Measured
Screen
Interval
(ft)
Top of
Casing
Elevation (ft)
Depth
to Product
(ft, BGS)
Depth
to Water
(ft, BGS)
Free Product
Thickness
(ft)
Water
Table
Elevation (ft)
07/17/18 21.65 28.10 6.45 76.74
12/03/18 20.03 30.72 10.69 77.30
01/31/19 16.06 30.21 14.15 80.40
11/18/19 20.05 31.15 11.10 77.18
11/22/19 23.56 24.02 0.46 76.33
12/12/19 21.25 22.69 1.44 78.39
09/14/20 18.62 23.22 4.60 80.23
09/18/20 20.74 21.76 1.02 79.01
10/22/20 19.69 20.63 0.94 80.08
03/15/21 15.82 19.71 3.89 83.21
03/19/21 18.64 18.71 0.07 81.34
4/6/2021 16.10 18.51 2.41 83.30
6/11/2021 18.29 20.00 1.71 81.28
11/11/2021 22.16 24.1 1.94 77.36
12/6/2021 21.81 24.17 2.36 77.60
12/10/2021 --24.41 --75.59
1/4/2022 22.90 23.44 0.54 76.97
2/13/2023 19.48 19.66 0.18 80.48
12/03/18 --23.20 --78.03
01/31/19 --19.81 --81.42
12/12/19 --22.92 --78.31
10/22/20 --21.27 --79.96
4/6/2021 --18.09 --83.14
11/11/2021 --24.15 --77.08
1/4/2022 --24.78 --76.45
2/13/2023 --21.2 --80.03
12/03/18 --20.05 --79.07
01/31/19 --16.57 --82.55
12/12/19 --19.69 --79.43
10/22/20 --17.57 --81.55
4/6/2021 --14.53 --84.59
1/4/2022 --21.22 --77.90
2/13/2023 --17.82 --81.30
12/03/18 --18.45 --80.23
01/31/19 --14.80 --83.88
12/12/19 --17.78 --80.90
10/22/20 --15.68 --83.00
4/6/2021 --12.70 --85.98
1/4/2022 --19.54 --79.14
2/13/2023 --16.18 --82.50
TABLE 6
GROUNDWATER ELEVATION DATA
CIRCLE K STORE NO. 2720828
10326 Park Road, Charlotte, NC
NCDEQ Incident #40819
MW-1 20 - 35 100.00
MW-2 20 - 35 101.23
MW-3
MW-4
19 - 34 99.12
98.6817 - 32
Page 1 of 3
Well ID
Date
Liquid Level
Measured
Screen
Interval
(ft)
Top of
Casing
Elevation (ft)
Depth
to Product
(ft, BGS)
Depth
to Water
(ft, BGS)
Free Product
Thickness
(ft)
Water
Table
Elevation (ft)
TABLE 6
GROUNDWATER ELEVATION DATA
CIRCLE K STORE NO. 2720828
10326 Park Road, Charlotte, NC
NCDEQ Incident #40819
12/03/18 19.72 28.56 8.84 77.41
01/31/19 15.96 27.11 11.15 80.59
11/18/19 19.97 26.65 6.68 77.70
11/22/19 24.02 24.08 0.06 75.31
12/12/19 20.58 21.11 0.53 78.63
09/14/20 --17.78 --81.56
09/18/20 20.56 20.70 0.14 78.75
10/22/20 18.81 19.18 0.37 80.44
03/15/21 15.62 17.18 1.56 83.33
03/19/21 18.63 18.64 0.01 80.71
4/6/2021 15.65 15.66 0.01 83.69
6/11/2021 17.74 18.25 0.51 81.47
11/11/2021 21.85 22.50 0.65 77.33
12/6/2021 22.89 23.39 0.50 76.33
12/10/2021 23.01 23.61 0.60 76.18
1/4/2022 22.18 24.19 2.01 76.66
2/13/2023 18.88 19.09 0.21 80.41
01/31/19 --15.69 --81.27
12/12/19 --18.74 --78.22
10/22/20 --16.97 --79.99
4/6/2021 --13.92 --83.04
1/4/2022 --20.35 --76.61
2/13/2023 --16.85 --80.11
4/6/2021 --15.69 --84.03
1/4/2022 21.94 24.33 2.39 77.18
2/13/2023 18.90 19.13 0.23 80.76
3/15/2021 --17.24 --83.56
3/19/2021 --20.66 --80.14
4/6/2021 17.14 17.15 0.01 83.66
6/11/2021 19.26 19.69 0.43 81.43
11/11/2021 22.61 26.93 4.32 77.11
12/6/2021 27.11 29.71 2.60 73.04
12/10/2021 --24.74 --76.06
1/4/2022 23.85 24.28 0.43 76.84
2/13/2023 20.30 20.75 0.45 80.39
12/6/2021 22.95 23.08 0.13 76.70
12/10/2021 --24.03 --75.65
1/4/2022 --22.87 --76.81
2/13/2023 19.00 21.02 2.02 80.18
12/6/2021 26.29 27.13 0.84 76.42
12/10/2021 --28.93 --73.99
1/4/2022 26.19 26.56 0.37 76.64
2/13/2023 22.51 22.90 0.39 80.31
MW-5 18 - 33 99.34
MW-6 17 - 32 96.96
MW-7 15 - 30 99.72
15 - 30 100.80MW-8
MW-9
MW-10
15 - 30 99.68
20 - 35 102.92
Page 2 of 3
Well ID
Date
Liquid Level
Measured
Screen
Interval
(ft)
Top of
Casing
Elevation (ft)
Depth
to Product
(ft, BGS)
Depth
to Water
(ft, BGS)
Free Product
Thickness
(ft)
Water
Table
Elevation (ft)
TABLE 6
GROUNDWATER ELEVATION DATA
CIRCLE K STORE NO. 2720828
10326 Park Road, Charlotte, NC
NCDEQ Incident #40819
12/6/2021 19.88 26.58 6.70 78.97
12/10/2021 --25.93 --74.59
1/4/2022 23.51 23.86 0.35 76.92
2/13/2023 19.89 20.70 0.81 80.43
MW-12 2/13/2023 15 - 30 102.79 --23.35 --79.44
MW-13 2/13/2023 15 - 30 100.03 --21.25 --78.78
MW-14 2/13/2023 15 - 30 99.59 --19.11 --80.48
12/03/18 --22.00 --78.28
01/31/19 --18.63 --81.65
12/12/19 --21.58 --78.70
10/22/20 --19.91 --80.37
03/15/21 --16.75 --83.53
03/19/21 --19.11 --81.17
4/6/2021 --16.60 --83.68
12/6/2021 23.00 23.12 0.12 77.25
1/4/2022 --23.39 --76.89
2/13/2023 --20.01 --80.27
3/15/2021 --16.76 --83.52
3/19/2021 --19.24 --81.04
4/6/2021 16.60 16.61 0.01 83.68
06/11/21 18.70 19.56 0.86 81.37
11/11/2021 22.63 24.32 1.69 77.23
12/6/2021 24.86 25.7 0.84 75.21
12/10/2021 --24.69 --75.59
1/4/2022 23.38 23.55 0.17 76.86
2/13/2023 19.47 21 1.53 80.43
Notes:
Water table elevation adjusted for the presence of LNAPL using an assumed density of 0.75.
10 - 40 100.28RW-1
100.52
TW-1 50 - 60 100.28
MW-11 15 - 30
Page 3 of 3
TABLE 7
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
CIRCLE K STORE NO. 2720828
10329 Park Road, Charlotte, NC
NCDEQ Incident #40819
SM 6200B Oxygenates
Well ID Sample
Date
BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tert Butyl EtherNaphthalene2-Butanone (MEK)n-Butylbenzenesec-ButylbenzeneChloroformo-Chlorotoluene1,1-Dichloroethylenecis-1,2- Dichloroethylenetrans-1,2 DichloroethyleneDi-Isopropyl EtherIsopropylbenzenep-IsopropyltolueneMethyl ChlorideMethylene Chloriden-PropylbenzeneStyreneTetrachloroethylene (PCE)Trichloroethylene (TCE)1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneVinyl chloridetert-Amyl alcohol(TAA)tert-Amyl methyl ether(TAME)tert-Butyl alcohol(TBA)1 600 600 500 20 6 4,000 70 70 70 70 350 70 100 70 70 25 3 5 70 70 0.7 3 400 400 0.03 40 128 10
5,000 260,000 80,000 50,000 20,000 6,000 4 x 106 6,900 8,800 70,000 70,000 350,000 70,000 100,000 70,000 30,500 11,700 3,000 5,000 26,100 70,000 700 3,000 28,500 24,100 30 40,000 12,800 10,000
7/17/2018
12/3/2018
12/12/2019
10/22/2020
3/17/2021 742 456 446 1,766 38.3 76.3 -- -- -- -- -- -- -- --78.5 -- -- -- ------ -- -- -- -- -- -- --
4/6/2021
6/11/2021
1/4/2022
2/13/2023
12/3/2018 498 139 10.6 555 103 14.8 13.3 J <5.0 1.6 J -- 5.0 --2.6 J <5.0 190 12.0 2.1 J 16.1 --3.5 --366 14.6 84.4 41.1 ---- -- --
12/12/2019 1,100 80 228 78 226 28.3 <31 4.9 J 8.1 J 6.1 J <3.1 --<3.1 <3.1 324 86.5 <3.1 <5.0 36.0 J 31.7 --39.9 37.4 53.1 22.6 --839 40.3 <50
10/22/2020 1,550 96.6 242 159 170 38.3 <44.9 <4.4 <3.1 <4.4 <2.6 --24.9 <3.2 320 78.9 -- -- <18.8 <3.0 --16 9.6 78 <2.8 --1,200J <37.0 <220
4/6/2021 2,980 148 513 442 170 67.4 <99 14.8 <10 12.4J <8.0 --50.6 <9.9 315 104 <10.4 --<48.8 <8.5 --<7.3 <9.6 241 <8.3 --1,380J <66.5 <670
1/4/2022 847 38.1 193 155 162 30.1 <19.8 8.5 <2.0 <1.8 <1.6 --70.3 <2.0 289 61.8 <2.1 --<9.8 27.8 --2.8 13.9 110 <1.7 <1.9 972 48.1J <134
2/13/2023 216 1.3 44.7 6.9 134 13.2 <1.3 5.5 7.7 <0.13 <0.13 <0.13 161 3.2 257 32.9 1.4 <0.20 <1.0 15.9 <0.13 45.8 36.8 32.1 8.6 <0.13 759 37.7 <2.0
12/3/2018 8.4 J <25 <25 <75 <25 <25 <130 <25 <25 -- <25 --<25 <25 <25 <25 <25 <25 --<25 --1,590 8.2 J <25 <25 -- -- -- --
12/12/2019 6.6 J <6.3 <6.3 <13 <6.3 <6.3 <63 <6.3 <6.3 <6.3 <6.3 --<6.3 <6.3 <6.3 <6.3 <6.3 <10 72.1 J <6.3 --1,160 9.5 J <6.3 <6.3 -- <100 <10 <100
10/22/2020 <2.4 <2.3 <2.4 24.9 <4.4 30.2 <35.9 <3.5 <2.5 3.6J <2.1 -- 2.2J <2.6 <3.3 4.5J -- -- <15.0 4.9J --911 5.5 41.6 10.2 --<405 <29.6 <176
4/6/2021 <1.7 <2.4 <1.5 <1.7 <2.1 <3.2 <19.8 <2.4 <2.0 <1.8 <1.6 --2.4J <2.0 <1.5 <1.7 <2.1 --<9.8 <1.7 --913 5.2 <3.2 < 1.7 -- <182 <13.3 <134
1/4/2022 <1.7 <2.4 <1.5 <1.7 <2.1 <3.2 <19.8 <2.4 <2.0 <1.8 <1.6 -- 2.7 <2.0 <1.5 <1.7 <2.1 --<9.8 <1.7 --805 4.6 <2.5 <1.7 <1.9 <182 <13.3 <134
2/13/2023 <6.3 <6.3 <6.3 <13.0 <6.3 <6.3 <63.0 <6.3 <6.3 <6.3 <6.3 <6.3 7.6 J <6.3 <6.3 <6.3 <6.3 <10.0 <50 <6.3 <6.3 1,390 10.4 J <6.3 <6.3 <6.3 <100 <10.0 <100
12/3/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <2.5 <0.50 <0.50 -- <0.50 -- <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 --<0.50 --0.79 <0.50 <0.50 <0.50 -- -- -- --
12/12/2019 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <1.3 <0.13 <0.13 <0.13 <0.13 -- <0.13 <0.13 0.13 J <0.13 <0.13 <0.20 <1.0 <0.13 -- <0.13 <0.13 <0.13 <0.13 -- <2.0 <0.20 <2.0
10/22/2020 <0.24 <0.23 <0.24 <0.50 <0.44 <0.66 <3.6 <0.35 <0.25 <0.35 <0.21 --<0.21 <0.26 <0.33 <0.24 -- -- <1.5 <0.24 --<0.23 <0.23 <0.19 <0.23 --<40.5 <3.0 <17.6
4/6/2021 <0.34 <0.48 <0.30 <0.34 <0.42 <0.64 <4.0 <0.49 <0.40 <0.35 <0.32 -- <0.38 <0.40 <0.31 <0.33 <0.41 --<2.0 <0.34 -- <0.29 <0.38 <0.50 <0.33 -- <36.4 <2.7 <26.8
1/4/2022 <0.34 <0.48 <0.30 <0.34 <0.42 <0.64 <4.0 <0.49 <0.40 <0.35 <0.32 --<0.38 <0.40 <0.31 <0.33 <0.41 --<2.0 <0.34 --<0.29 <0.38 <0.50 <0.33 <0.39 <36.4 <2.7 <26.8
2/13/2023 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <1.3 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.20 <1.0 <0.13 <0.13 0.38 J <0.13 <0.13 <0.13 <0.13 <2.0 <0.20 <2.0
Not Sampled - LNAPL Thickness 6.45'
Not Sampled - LNAPL Thickness 10.69'
Not Sampled - LNAPL Thickness 1.46'
Not Sampled - LNAPL Thickness 0.94'
Not Sampled - LNAPL Thickness 2.41'
Not Sampled - LNAPL Thickness 0.54'
GCL
Analytical Method
Not Sampled - LNAPL Thickness 1.71'
2L Standard
MW-2
MW-3
MW-4
MW-1
Not Sampled - LNAPL Thickness 0.18'
Page 1 of 3
TABLE 7
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
CIRCLE K STORE NO. 2720828
10329 Park Road, Charlotte, NC
NCDEQ Incident #40819
SM 6200B Oxygenates
Well ID Sample
Date
BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tert Butyl EtherNaphthalene2-Butanone (MEK)n-Butylbenzenesec-ButylbenzeneChloroformo-Chlorotoluene1,1-Dichloroethylenecis-1,2- Dichloroethylenetrans-1,2 DichloroethyleneDi-Isopropyl EtherIsopropylbenzenep-IsopropyltolueneMethyl ChlorideMethylene Chloriden-PropylbenzeneStyreneTetrachloroethylene (PCE)Trichloroethylene (TCE)1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneVinyl chloridetert-Amyl alcohol(TAA)tert-Amyl methyl ether(TAME)tert-Butyl alcohol(TBA)1 600 600 500 20 6 4,000 70 70 70 70 350 70 100 70 70 25 3 5 70 70 0.7 3 400 400 0.03 40 128 10
5,000 260,000 80,000 50,000 20,000 6,000 4 x 106 6,900 8,800 70,000 70,000 350,000 70,000 100,000 70,000 30,500 11,700 3,000 5,000 26,100 70,000 700 3,000 28,500 24,100 30 40,000 12,800 10,000GCL
Analytical Method
2L Standard
12/3/2018
12/12/2019
10/22/2020
3/17/2021 331 117 357 1,219 89.9 76.6 -- -- -- -- -- -- -- -- --51.7 -- -- -- -- -- -- -- -- -- -- -- --
4/6/2021
6/11/2021
1/4/2022
2/13/2023
1/31/2019 310 1,260 125 1,280 10.9 J 44.6 <130 <25 <25 -- <25 -- <25 <25 34.0 12.0 J <25 <25 -- 10.5 J -- <25 7.6 J 197 49.9 ---- -- --
12/12/2019 500 56.5 105 142 6.6 70.8 <13 5.0 3.9 J 7.1 <1.3 -- <1.3 <1.3 23.6 62.7 3.3 J <2.0 14.3 J 34.6 -- 2.0 J <1.3 372 130 --302 2.6 J <20
10/22/2020 473 54.6 89.9 832 <1.8 138 28.6 12.8 <0.98 <1.4 <0.83 --<0.83 <1.0 12.6 106 -- -- <6.0 74.2 --<0.93 <0.93 567 174 --286J <11.8 <70.4
4/6/2021 347 32.4 40.5 1,060 <1.7 87.6 16.7J <2.0 <1.6 <1.4 <1.3 --<1.5 <1.6 <1.2 48.2 <1.7 -- <7.8 <1.4 --<1.2 <1.5 454 <1.3 --<146 <10.6 <107
1/4/2022 50 1.0 30.6 2.7 <0.42 43.1 8.4 <0.49 3.5 <0.35 <0.32 --<0.38 <0.40 14 41.2 2.3 --<2.0 26.5 --<0.29 <0.38 98 <0.33 <0.39 224 <2.7 63.1
2/13/2023 7.9 0.8 5.5 5.5 11 4.8 <1.3 0.33 J 2.2 <0.13 <0.13 <0.13 1.2 <0.13 21.4 11.7 0.16 J <0.20 <1.0 9 <0.13 2.9 2.4 9.6 0.73 <0.13 315 2.6 161
4/6/2021 510 532 902 3,760 <4.2 262 <39.6 217 <4.0 <3.5 <3.2 -- <3.8 <3.6 27.9 173 132 --<19.5 <3.4 --394 50.9 1,810 <3.3 -- <364 <26.6 <268
1/4/2022
2/13/2023
4/6/2021
6/11/2021
1/4/2022
2/13/2023
1/4/2022 1,490 361 574 2390 31.6 185 <39.6 79.2 <4.0 <3.5 <3.2 --<3.8 <4.0 116 120 64.1 --<19.5 115 --<2.9 <3.8 819 208 <3.9 1240 <26.6 479J
2/13/2023
1/4/2022
2/13/2023
1/4/2022
2/13/2023
Not Sampled - LNAPL Thickness 0.43'
Not Sampled - LNAPL Thickness 0.37'
Not Sampled - LNAPL Thickness 0.53'
Not Sampled - LNAPL Thickness 0.37'
Not Sampled - LNAPL Thickness 8.84'
Not Sampled - LNAPL Thickness 2.01'
Not Sampled - LNAPL Thickness 2.39'
Not Sampled - LNAPL Thickness 0.51'
Not Sampled - LNAPL Thickness 0.45'
Not Sampled - LNAPL Thickness 0.01'
Not Sampled - LNAPL Thickness 0.01'
Not Sampled - LNAPL Thickness 0.43'
MW-6
MW-5
Not Sampled - LNAPL Thickness 0.21'
MW-7
Not Sampled - LNAPL Thickness 0.23'
MW-8
MW-9 Not Sampled - LNAPL Thickness 2.01'
MW-10
MW-11
Not Sampled - LNAPL Thickness 0.39'
Not Sampled - LNAPL Thickness 0.81'
Not Sampled - LNAPL Thickness 0.35'
Page 2 of 3
TABLE 7
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
CIRCLE K STORE NO. 2720828
10329 Park Road, Charlotte, NC
NCDEQ Incident #40819
SM 6200B Oxygenates
Well ID Sample
Date
BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tert Butyl EtherNaphthalene2-Butanone (MEK)n-Butylbenzenesec-ButylbenzeneChloroformo-Chlorotoluene1,1-Dichloroethylenecis-1,2- Dichloroethylenetrans-1,2 DichloroethyleneDi-Isopropyl EtherIsopropylbenzenep-IsopropyltolueneMethyl ChlorideMethylene Chloriden-PropylbenzeneStyreneTetrachloroethylene (PCE)Trichloroethylene (TCE)1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneVinyl chloridetert-Amyl alcohol(TAA)tert-Amyl methyl ether(TAME)tert-Butyl alcohol(TBA)1 600 600 500 20 6 4,000 70 70 70 70 350 70 100 70 70 25 3 5 70 70 0.7 3 400 400 0.03 40 128 10
5,000 260,000 80,000 50,000 20,000 6,000 4 x 106 6,900 8,800 70,000 70,000 350,000 70,000 100,000 70,000 30,500 11,700 3,000 5,000 26,100 70,000 700 3,000 28,500 24,100 30 40,000 12,800 10,000GCL
Analytical Method
2L Standard
MW-12 2/13/2023 <1.3 <1.3 3.5 J 6.7 J <1.3 <1.3 <13.0 <1.3 <1.3 <1.3 <1.3 <1/3 1.7 J <1.3 1.6 J <1.3 <1.3 <2.0 <10.0 2.0 J <1.3 242 3.4 J 9 3.6 J <1.3 <20 <2.0 <20.0
MW-13 2/13/2023 582 975 260 2,140 59 107 <13.0 14 10 <1.3 <1.3 <1.3 2.4 J <1.3 196 75 6 <2.0 <10.0 93 2.3 J 123 17 699 186 <1.3 581 <2.0 <20.0
MW-14 2/13/2023 92 40 269 460 102 80 <13.0 17 13 <1.3 <1.3 <1.3 216 2.3 J 187 139 8 <2.0 <10.0 83 <1.3 19 26 482 146 <1.3 661 26 <20.0
12/3/2018 5.5 3.2 J 1.6 J 11.4 J 24.0 3.3 J <25 2.0 J 1.4 J -- <5.0 -- 4.1 J 1.7 J 43.7 <5.0 <5.0 <5.0 -- 1.8 J --545 28.8 14.0 3.5 J ---- -- --
12/12/2019 5.8 <1.3 <1.3 <2.5 37.3 <1.3 <13 <1.3 <1.3 <1.3 <1.3 -- 18.5 3.4 J 40.4 <1.3 <1.3 <2.0 14.8 J <1.3 --492 46.9 <1.3 <1.3 --978 4.4 J 387
10/22/2020 45.9 <0.57 8.4 3.6 34.7 <1.6 <9.0 <0.88 <0.62 <0.88 <0.52 --24.4 4.7 45.8 1.2J -- -- <3.8 <0.60 --393 50.2 5.9 <0.57 --1,290 <7.4 472
4/6/2021 101 23.1 14.9 39.7 36.6 5.3 <9.9 <1.2 <1.0 <0.88 <0.80 --34.1 <0.91 48.4 2.2 <1.0 -- <4.9 <0.85 --270 87.4 13.8 <0.83 --1,200 <6.6 474
1/4/2022 49.1 <1.2 12.4 5.6 31.5 2.7J <9.9 <1.2 <1.0 <0.88 <0.80 --29.8 6.8 48.7 1.2J <1.0 --<4.9 0.86J --327 101 3.6 <0.83 3.4 1,210 <6.6 564
2/13/2023 34.7 <1.3 10.9 <2.5 38 1.6 J <13.0 <1.3 <1.3 <1.3 <1.3 1.6 J 54.7 9.6 54 1.4 J <1.3 <2.0 <10.0 <1.3 <1.3 228 86.7 <1.3 <1.3 20.4 1,380 7.6 J 586
3/17/2021 479 617 249 937 42.9 -- -- -- -- -- -- -- -- -- -- 53 -- -- -- -- -- -- -- -- ------ -- --
4/6/2021
6/11/2021
1/4/2022
2/13/2023
Notes:J = Estimated value between method detection limit and laboratory reporting limit.
All values reported in micrograms per liter (µg/L)Underlined values indicate detection limit is above 2L Standard due to dilution.
2L Standard as defined in North Carolina Groundwater Standards, Title 15A, NCAC, Subchapter 2L, Part .0202 Values in BOLD print indicate levels above 2L Standards
GCL = Gross Contamination Level Values that are Bold and Underlined indicate levels above GCLs
NSE = No Standard Established -- = Not analyzed or not previously reported
Not Sampled - LNAPL Thickness 0.01'
Not Sampled - LNAPL Thickness 0.86'
TW-1
RW-1
Not Sampled - LNAPL Thickness 2.13'
Not Sampled - LNAPL Thickness 0.17'
Page 3 of 3
TABLE 8
LNAPL RECOVERY INFORMATION
CIRCLE K STORE NO. 2720828
10326 Park Road, Charlotte, NC
NCDEQ Incident #40819
Date(s) of
Recovery
Event
Well ID
Product
Type
(gas, diesel, etc.)
LNAPL
Recovery
Method
Depth to
LNAPL
(ft BTOC)
Depth to
Water
(ft BTOC)
LNAPL
Thickness
Before
Recovery
(ft)
LNAPL
Thickness
After
Recovery
(ft)
LNAPL
Recovered
(gal)
Volatilized
LNAPL
(gal)
Liquid
Recovered
(gal)
11/01/18 MW-1 AFVR 21.48 33.56 12.08 0.00 -- 0.53 820
MW-1 20.05 31.15 11.10 0.46
MW-5 19.97 26.65 6.68 0.06
MW-1 18.62 23.22 4.60 1.02
MW-5 NM 17.78 0.00 0.14
MW-1 15.82 19.71 3.89 0.07
MW-5 15.62 17.18 1.56 0.01
RW-1 ND 16.76 0.00 0.00
MW-1 21.81 24.17 2.36 0.00
MW-5 22.89 23.39 0.50 0.60
MW-8 27.11 29.71 2.60 0.00
MW-9 22.95 23.08 0.13 0.00
MW-10 26.29 27.13 0.84 0.00
MW-11 19.88 26.58 6.70 0.00
RW-1 24.86 25.70 0.84 0.00
MW-1 22.60 25.54 2.94 0.00
MW-5 22.11 25.47 3.36 0.00
MW-7 22.06 24.49 2.43 0.00
MW-8 23.26 27.59 4.33 0.00
MW-10 26.14 26.71 0.57 0.00
MW-11 22.85 27.34 4.49 0.06
RW-1 22.70 27.64 4.94 0.02
287 1060.43 26,934
NOTES:
ft - Feet
BTOC - Below top of casing
LNAPL = Light Non-Aqueous Phase Liquid
gal - gallons
AFVR - Aggressive Fluid-Vapor Recovery (8-hours)
MMPE - Mobile Multi-Phase Extraction (96-hours)
Diesel / Gasoline12/5/2022-
12/9/2022 MMPE 102 131.71 4,980
5,417
5,241
Cumulative Volume Recovered:
11/18/19 -
11/22/19 MMPE 107 340.7
9/14/20 -
9/18/20
187.46 10,000
402.74
Diesel
MMPE
3/15/21-
3/19/21 Diesel / Gasoline MMPE 67
92
MMPEDiesel / Gasoline12/6/21-
12/10/21 5,45612921

FIGURES
CIRCLE K STORE NO. 2720828
10329 PARK ROAD
CHARLOTTE, NORTH CAROLINA 28210 1
FIGURE TITLE:
ADDRESS:PROJECT NO.:
CIRK082803
SITE LOCATION MAP
FIGURE:
DATE:
11-20-18
MW-6MW-4MW-1TW-1MW-2MW-3MW-5RW-1MW-8MW-7CIRCLE K #2720828STOREDISPENSER
CANOPYUSTBASINMW-9MW-10MW-11MW-14MW-13MW-12ASSOCIATES OF NORTH CAROLINA, P.C.
[phone] FAX [phone]
PROJECT NO.
Charlotte, North Carolina 28273
NOTES:
DATE
TITLE
SCALEREV. BYPREP. BYCAD FILE DCSA ID
S:\Administrative\ATC RETURNS!\ATC Logo - 2015\ATC Logo_Full Color_CMYK.jpg
MW-6MW-4MW-1TW-1MW-2MW-3MW-5RW-1MW-8MW-7CIRCLE K #2720828STOREDISPENSER
CANOPYUSTBASINMW-9MW-10MW-11MW-14MW-12ASSOCIATES OF NORTH CAROLINA, P.C.
[phone] FAX [phone]
PROJECT NO.
Charlotte, North Carolina 28273
NOTES:
DATE
TITLE
SCALEREV. BYPREP. BYCAD FILE DCSA ID
S:\Administrative\ATC RETURNS!\ATC Logo - 2015\ATC Logo_Full Color_CMYK.jpg80.1175.411.WATER LEVELS MEASURED 04/13/2023
2.CONTOURS BASED ON TYPE II WELLS WITH
NO MESURED LNAPL 82.5080.4880.0381.3080.7680.4380.4180.2780.3980.1880.3180.4380.080.4881.082.079.4478.78MW-1379.0
MW-6MW-4MW-1TW-1MW-2MW-3MW-5RW-1MW-8MW-7CIRCLE K #2720828STOREDISPENSER
CANOPYUSTBASINMW-9MW-10MW-11MW-14MW-13MW-12ASSOCIATES OF NORTH CAROLINA, P.C.
[phone] FAX [phone]
PROJECT NO.
Charlotte, North Carolina 28273
NOTES:
DATE
TITLE
SCALEREV. BYPREP. BYCAD FILE DCSA ID
S:\Administrative\ATC RETURNS!\ATC Logo - 2015\ATC Logo_Full Color_CMYK.jpg
1.GROUNDWATER SAMPLES TAKEN 04/13/2023
2.TW-1 NOT USED IN CONTOURING2.37.9216LNAPL<6.3<0.13LNAPLLNAPL1,49034.7LNAPL<0.1392LNAPLLNAPL500 µg/LLNAPLLNAPL5821 µg/L100 µg/L
MW-6MW-4MW-1TW-1MW-2MW-3MW-5RW-1MW-8MW-7CIRCLE K #2720828STOREDISPENSER
CANOPYUSTBASINMW-9MW-10MW-11MW-14MW-13MW-12ASSOCIATES OF NORTH CAROLINA, P.C.
[phone] FAX [phone]
PROJECT NO.
Charlotte, North Carolina 28273
NOTES:
DATE
TITLE
SCALEREV. BYPREP. BYCAD FILE DCSA ID
S:\Administrative\ATC RETURNS!\ATC Logo - 2015\ATC Logo_Full Color_CMYK.jpg0.18'0.21'2.13'0.45'0.23'0.39'0.81'1.GROUNDWATER SAMPLES TAKEN 04/13/2023
2.TW-1 NOT USED IN CONTOURING 2.01'
MW-6MW-4MW-1TW-1MW-2MW-3MW-5RW-1MW-8MW-7CIRCLE K #2720828STOREDISPENSER
CANOPYUSTBASINMW-9MW-10MW-11MW-14MW-13MW-12ASSOCIATES OF NORTH CAROLINA, P.C.
[phone] FAX [phone]
PROJECT NO.
Charlotte, North Carolina 28273
NOTES:
DATE
TITLE
SCALEREV. BYPREP. BYCAD FILE DCSA ID
S:\Administrative\ATC RETURNS!\ATC Logo - 2015\ATC Logo_Full Color_CMYK.jpg1.REPORTED CONCENTRATIONS EXCEED
2L STANDARDS
2.UNDERLINED VALUES EXCEED GCL
3.SAMPLES COLLECTED 02/13/2023LNAPL

APPENDIX A
WELL CONSTRUCTION RECORDS
John Eisenman
4439
SAEDACCO Inc
70002559
X
11-3-22 MW-12
Circle K 828
10329 Park Rd., Charlotte, NC, 28210
Mecklenburg
X
X
1
30
18
6"
Air
0 15 2"SCH-40 PVC
15 30 2".010 SCH-40 PVC
0 8 Portland Pour
13 30 Sand #2
0 30 Silt/sand/clay
Bentonite seal from 8-13'
11/13/2022
John Eisenman
4439
SAEDACCO Inc
70002559
X
11-3-22 MW-13
Circle K 828
10329 Park Rd., Charlotte, NC, 28210
Mecklenburg
X
X
1
30
18
6"
Air
0 15 2"SCH-40 PVC
15 30 2".010 SCH-40 PVC
0 8 Portland Pour
13 30 Sand #2
0 30 Silt/sand/clay
Bentonite seal from 8-13'
11/13/2022
John Eisenman
4439
SAEDACCO Inc
70002559
X
11-3-22 MW-14
Circle K 828
10329 Park Rd., Charlotte, NC, 28210
Mecklenburg
X
X
1
30
18
6"
Air
0 15 2"SCH-40 PVC
15 30 2".010 SCH-40 PVC
0 8 Portland Pour
13 30 Sand #2
0 30 Silt/sand/clay
Bentonite seal from 8-13'
11/13/2022
Site Name:Circle K Store No. 2720828 Datum Elevation:feet
Location:10329 Park Road, Charlotte, NC Height of Riser:feet
0
REMARKS:BORING NUMBER:
DATE STARTED:
DATE COMPLETED:
PROJECT NUMBER:
GW level at time of boring. Bentonite Screen DRILLED BY:
GW level measured after well installation. Sand Riser LOGGED BY:
EDPS:Environmental Drilling & Probing Services, Inc.Grout N/A Not Applicable PAGE
N/A
1 OF 1
Completed with flush-mount manhole, 2'x2' concrete well pad and lockable plug. 11/3/2022
CIRK082808
SAEDDACCO
J.A. Cooper
Drilled with Air -Rotary techniques MW-14
Borehole diameter approximately 8-inches. 11/3/2022
45.0
N/A N/A
40.0
35.0
N/A
N/A
N/A
72.79 30.0
N/A N/A
77.79
N/A
82.79
N/A
87.79 15.0
20.0
25.0
None
92.79 10.0
98.79 4.0
NA
97.79 5.0
100.79 2.0
70 80 90 100
N/A N/A
slight
PID (ppm)
10 20 30 40 50 60
BORING LOG
NA
102.79
ELEVATION
(feet)
DEPTH
(feet)DESCRIPTION
RECOVERY (Percent)WELL DIAGRAM Odors
PENETRATION - BLOWS PER FOOT
Boring terminated at 30-feet. 2-inch schedule 40 PVC
monitoring well installed to 30-feet with 15-feet of 0.010-
inch slotted screen to 15-feet. Sand to 31-feet, bentonite
to 8.0-feet, grout to surface.
Brown SILT, dry
Brown Gravel, dry
Brown CLAY, Dry
Light Brown clayey SILT, moist
Gray SILT, Moist
Gray Brown Silty SAND
Site Name:Circle K Store No. 2720828 Datum Elevation:feet
Location:10329 Park Road, Charlotte, NC Height of Riser:feet
0
REMARKS:BORING NUMBER:
DATE STARTED:
DATE COMPLETED:
PROJECT NUMBER:
GW level at time of boring. Bentonite Screen DRILLED BY:
GW level measured after well installation. Sand Riser LOGGED BY:
EDPS:Environmental Drilling & Probing Services, Inc.Grout N/A Not Applicable PAGE
45.0
1 OF
Drilled with Air -Rotary techniques MW-14
Borehole diameter approximately 6-inches. 11/3/2022
1
Completed with flush-mount manhole, 2'x2' concrete well pad and lockable plug. 11/3/2022
CIRK082808
SAEDDACCO
J.A. Cooper
N/A
40.0
35.0
N/A N/A
70.30 30.0
N/A N/A
75.30 25.0
80.30 20.0
Boring terminated at 30-feet. 2-inch schedule 40 PVC
monitoring well installed to 30-feet with 15-feet of 0.010-
inch slotted screen to 15-feet. Sand to 31-feet, bentonite
to 8.0-feet, grout to surface.
85.30 15.0
90.30 10.0
95.30 5.0
70 80 90 100
N/A N/A
PID (ppm)
N/A N/A
N/A
10 20 30 40 50 60
BORING LOG
NA
100.30
ELEVATION
(feet)
DEPTH
(feet)DESCRIPTION
RECOVERY (Percent)WELL DIAGRAM Odors
PENETRATION - BLOWS PER FOOT
NA NA
Ashphalt
Light Brown Clayey SILT dry
Light Brown SILT moist
Gray SILT dry
Site Name:Circle K Store No. 2720828 Datum Elevation:feet
Location:10329 Park Road, Charlotte, NC Height of Riser:feet
0
REMARKS:BORING NUMBER:
DATE STARTED:
DATE COMPLETED:
PROJECT NUMBER:
GW level at time of boring. Bentonite Screen DRILLED BY:
GW level measured after well installation. Sand Riser LOGGED BY:
EDPS:Environmental Drilling & Probing Services, Inc.Grout N/A Not Applicable PAGE
45.0
1 OF 1
Completed with flush-mount manhole, 2'x2' concrete well pad and lockable plug. 11/3/2022
CIRK082808
SAEDDACCO
J.A. Cooper
Drilled with Air -Rotary techniques MW-14
Borehole diameter approximately 6-inches. 11/3/2022
40.0
35.0
69.59 30.0
74.59 25.0
79.59 20.0
84.59 15.0
89.59 10.0
7010 20 30 40
94.59 5.0
50 60
PID (ppm)
BORING LOG
NA
99.59
ELEVATION
(feet)
DEPTH
(feet)DESCRIPTION
RECOVERY (Percent)WELL DIAGRAM
80 90
Odors
PENETRATION - BLOWS PER FOOT
Ashphalt and light brown silty CLAY
DRY Light Brown SILT , with petroleum odor
Boring terminated at 30-feet. 2-inch schedule 40 PVC
monitoring well installed to 30-feet with 15-feet of 0.010-
inch slotted screen to 15-feet. Sand to 31-feet, bentonite
to 8.0-feet, grout to surface.
N/A Yes
100
N/A N/A

APPENDIX B
MMPE DATA & EMISSIONS CALCULATIONS

APPENDIX C
LABORATORY ANALYTICAL REPORT

02/23/23
Technical Report for
ATC Group Services LLC
Circle K 2720828; 10329 Park Rd, Charlotte, NC
2720828
SGS Job Number: FC2742
Sampling Date: 02/13/23
Report to:
ATC Group Services LLC.
[e-mail]
[e-mail]
ATTN: Chris Hanley
Total number of pages in report:
Certifications: FL(E83510), LA(03051), KS(E-10327), NC(573), NJ(FL002), NY(12022), SC(96038001)
DoD ELAP(ANAB L2229), AZ(AZ0806), CA(2937), TX(T104704404), PA(68-03573), VA(460177),
AL, AK, AR, CT, IA, KY, MA, MI. MS, ND, NH, NV, OK, OR, IL, UT, VT, WA, WI, WV
This report shall not be reproduced, except in its entirety, without the written approval of SGS.
Test results relate only to samples analyzed.
SGS North America Inc. • 4405 Vineland Road • Suite C-15 • Orlando, FL 32811 • tel: [phone] • fax: [phone]
Test results contained within this data package meet the requirements
of the National Environmental Laboratory Accreditation Program
and/or state specific certification programs as applicable.
Client Service contact: Muna Mohammed 407-425-6700
Norm Farmer
Technical Director
Orlando, FL 02/23/23
e-Hardcopy 2.0
Automated Report
45
SGS is the sole authority for authorizing edits or modifications to this document.
Unauthorized modification of this report is strictly prohibited.
Review standard terms at: http://www.sgs.com/en/terms-and-conditions
The results set forth herein are provided by SGS North America Inc.
Please share your ideas about
how we can serve you better at:
[e-mail]
1 of 45
FC2742
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................8
3.1: FC2742-1: MW-2 ..........................................................................................................9
3.2: FC2742-2: MW-3 ..........................................................................................................12
3.3: FC2742-3: MW-4 ..........................................................................................................15
3.4: FC2742-4: MW-6 ..........................................................................................................18
3.5: FC2742-5: MW-12 ........................................................................................................21
3.6: FC2742-6: MW-13 ........................................................................................................24
3.7: FC2742-7: MW-14 ........................................................................................................27
3.8: FC2742-8: TW-1 ...........................................................................................................30
Section 4: Misc. Forms ............................................................................................................33
4.1: Chain of Custody ...........................................................................................................34
Section 5: MS Volatiles - QC Data Summaries .....................................................................36
5.1: Method Blank Summary ................................................................................................37
5.2: Blank Spike Summary ...................................................................................................40
5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................43 123452 of 45
FC2742
SGS North America Inc.
Sample Summary
ATC Group Services LLC
Job No:FC2742
Circle K 2720828; 10329 Park Rd, Charlotte, NC
Project No: 2720828
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
This report contains results reported as ND = Not detected. The following applies:
Organics ND = Not detected above the MDL
FC2742-1 02/13/23 10:35 VHKH02/16/23 AQ Ground Water MW-2
FC2742-2 02/13/23 11:10 VHKH02/16/23 AQ Ground Water MW-3
FC2742-3 02/13/23 10:05 VHKH02/16/23 AQ Ground Water MW-4
FC2742-4 02/13/23 11:55 VHKH02/16/23 AQ Ground Water MW-6
FC2742-5 02/13/23 10:15 VHKH02/16/23 AQ Ground Water MW-12
FC2742-6 02/13/23 10:40 VHKH02/16/23 AQ Ground Water MW-13
FC2742-7 02/13/23 11:05 VHKH02/16/23 AQ Ground Water MW-14
FC2742-8 02/13/23 12:00 VHKH02/16/23 AQ Ground Water TW-1
3 of 45
FC27421
Summary of Hits Page 1 of 4
Job Number:FC2742
Account:ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Collected:02/13/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
FC2742-1 MW-2
Benzene 216 13 3.1 ug/l SM 6200B
n-Butylbenzene 5.5 0.50 0.13 ug/l SM 6200B
sec-Butylbenzene 7.7 0.50 0.13 ug/l SM 6200B
cis-1,2-Dichloroethylene 161 13 3.1 ug/l SM 6200B
trans-1,2-Dichloroethylene 3.2 0.50 0.13 ug/l SM 6200B
Di-Isopropyl Ether 257 13 3.1 ug/l SM 6200B
Ethylbenzene 44.7 0.50 0.13 ug/l SM 6200B
Isopropylbenzene 32.9 0.50 0.13 ug/l SM 6200B
p-Isopropyltoluene 1.4 0.50 0.13 ug/l SM 6200B
Methyl Tert Butyl Ether 134 13 3.1 ug/l SM 6200B
Naphthalene 13.2 0.50 0.13 ug/l SM 6200B
n-Propylbenzene 15.9 0.50 0.13 ug/l SM 6200B
Tert-Amyl Alcohol 759 250 50 ug/l SM 6200B
Tert-Amyl Methyl Ether 37.7 1.0 0.20 ug/l SM 6200B
Tetrachloroethylene 45.8 0.50 0.13 ug/l SM 6200B
Toluene 1.3 0.50 0.13 ug/l SM 6200B
Trichloroethylene 36.8 0.50 0.13 ug/l SM 6200B
1,2,4-Trimethylbenzene 32.1 0.50 0.13 ug/l SM 6200B
1,3,5-Trimethylbenzene 8.6 0.50 0.13 ug/l SM 6200B
m,p-Xylene 4.8 1.0 0.13 ug/l SM 6200B
o-Xylene 2.1 0.50 0.13 ug/l SM 6200B
Xylene (total)6.9 1.5 0.25 ug/l SM 6200B
FC2742-2 MW-3
cis-1,2-Dichloroethylene 7.6 J 25 6.3 ug/l SM 6200B
Tetrachloroethylene 1390 25 6.3 ug/l SM 6200B
Trichloroethylene 10.4 J 25 6.3 ug/l SM 6200B
FC2742-3 MW-4
Tetrachloroethylene 0.38 J 0.50 0.13 ug/l SM 6200B
FC2742-4 MW-6
Benzene 7.9 0.50 0.13 ug/l SM 6200B
n-Butylbenzene 0.33 J 0.50 0.13 ug/l SM 6200B
sec-Butylbenzene 2.2 0.50 0.13 ug/l SM 6200B
cis-1,2-Dichloroethylene 1.2 0.50 0.13 ug/l SM 6200B
Di-Isopropyl Ether 21.4 0.50 0.13 ug/l SM 6200B
Ethylbenzene 5.5 0.50 0.13 ug/l SM 6200B
Isopropylbenzene 11.7 0.50 0.13 ug/l SM 6200B
p-Isopropyltoluene 0.16 J 0.50 0.13 ug/l SM 6200B
4 of 45
FC27422
Summary of Hits Page 2 of 4
Job Number:FC2742
Account:ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Collected:02/13/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
Methyl Tert Butyl Ether 11.0 0.50 0.13 ug/l SM 6200B
Naphthalene 4.8 0.50 0.13 ug/l SM 6200B
n-Propylbenzene 9.0 0.50 0.13 ug/l SM 6200B
Tert-Amyl Alcohol 315 10 2.0 ug/l SM 6200B
Tert-Amyl Methyl Ether 2.6 1.0 0.20 ug/l SM 6200B
Tert-Butyl Alcohol 161 10 2.0 ug/l SM 6200B
Tetrachloroethylene 2.9 0.50 0.13 ug/l SM 6200B
Toluene 0.75 0.50 0.13 ug/l SM 6200B
Trichloroethylene 2.4 0.50 0.13 ug/l SM 6200B
1,2,4-Trimethylbenzene 9.6 0.50 0.13 ug/l SM 6200B
1,3,5-Trimethylbenzene 0.73 0.50 0.13 ug/l SM 6200B
m,p-Xylene 4.1 1.0 0.13 ug/l SM 6200B
o-Xylene 1.4 0.50 0.13 ug/l SM 6200B
Xylene (total)5.5 1.5 0.25 ug/l SM 6200B
FC2742-5 MW-12
cis-1,2-Dichloroethylene 1.7 J 5.0 1.3 ug/l SM 6200B
Di-Isopropyl Ether 1.6 J 5.0 1.3 ug/l SM 6200B
Ethylbenzene 3.5 J 5.0 1.3 ug/l SM 6200B
n-Propylbenzene 2.0 J 5.0 1.3 ug/l SM 6200B
Tetrachloroethylene 242 5.0 1.3 ug/l SM 6200B
Trichloroethylene 3.4 J 5.0 1.3 ug/l SM 6200B
1,2,4-Trimethylbenzene 8.7 5.0 1.3 ug/l SM 6200B
1,3,5-Trimethylbenzene 3.6 J 5.0 1.3 ug/l SM 6200B
m,p-Xylene 6.7 J 10 1.3 ug/l SM 6200B
Xylene (total)6.7 J 15 2.5 ug/l SM 6200B
FC2742-6 MW-13
Benzene 582 13 3.1 ug/l SM 6200B
n-Butylbenzene 13.9 5.0 1.3 ug/l SM 6200B
sec-Butylbenzene 10.3 5.0 1.3 ug/l SM 6200B
cis-1,2-Dichloroethylene 2.4 J 5.0 1.3 ug/l SM 6200B
Di-Isopropyl Ether 196 5.0 1.3 ug/l SM 6200B
Ethylbenzene 260 5.0 1.3 ug/l SM 6200B
Isopropylbenzene 74.7 5.0 1.3 ug/l SM 6200B
p-Isopropyltoluene 6.4 5.0 1.3 ug/l SM 6200B
Methyl Tert Butyl Ether 58.9 5.0 1.3 ug/l SM 6200B
Naphthalene 107 5.0 1.3 ug/l SM 6200B
n-Propylbenzene 92.9 5.0 1.3 ug/l SM 6200B
Styrene 2.3 J 5.0 1.3 ug/l SM 6200B
Tert-Amyl Alcohol 581 100 20 ug/l SM 6200B
Tetrachloroethylene 123 5.0 1.3 ug/l SM 6200B
Toluene 975 13 3.1 ug/l SM 6200B
5 of 45
FC27422
Summary of Hits Page 3 of 4
Job Number:FC2742
Account:ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Collected:02/13/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
Trichloroethylene 17.4 5.0 1.3 ug/l SM 6200B
1,2,4-Trimethylbenzene 699 13 3.1 ug/l SM 6200B
1,3,5-Trimethylbenzene 186 5.0 1.3 ug/l SM 6200B
m,p-Xylene 1360 25 3.1 ug/l SM 6200B
o-Xylene 778 13 3.1 ug/l SM 6200B
Xylene (total)2140 38 6.3 ug/l SM 6200B
FC2742-7 MW-14
Benzene 91.8 5.0 1.3 ug/l SM 6200B
n-Butylbenzene 17.0 5.0 1.3 ug/l SM 6200B
sec-Butylbenzene 13.0 5.0 1.3 ug/l SM 6200B
cis-1,2-Dichloroethylene 216 5.0 1.3 ug/l SM 6200B
trans-1,2-Dichloroethylene 2.3 J 5.0 1.3 ug/l SM 6200B
Di-Isopropyl Ether 187 5.0 1.3 ug/l SM 6200B
Ethylbenzene 269 5.0 1.3 ug/l SM 6200B
Isopropylbenzene 139 5.0 1.3 ug/l SM 6200B
p-Isopropyltoluene 7.8 5.0 1.3 ug/l SM 6200B
Methyl Tert Butyl Ether 102 5.0 1.3 ug/l SM 6200B
Naphthalene 80.0 5.0 1.3 ug/l SM 6200B
n-Propylbenzene 83.1 5.0 1.3 ug/l SM 6200B
Tert-Amyl Alcohol 661 100 20 ug/l SM 6200B
Tert-Amyl Methyl Ether 25.5 10 2.0 ug/l SM 6200B
Tetrachloroethylene 19.3 5.0 1.3 ug/l SM 6200B
Toluene 39.5 5.0 1.3 ug/l SM 6200B
Trichloroethylene 26.4 5.0 1.3 ug/l SM 6200B
1,2,4-Trimethylbenzene 482 5.0 1.3 ug/l SM 6200B
1,3,5-Trimethylbenzene 146 5.0 1.3 ug/l SM 6200B
m,p-Xylene 428 10 1.3 ug/l SM 6200B
o-Xylene 31.8 5.0 1.3 ug/l SM 6200B
Xylene (total)460 15 2.5 ug/l SM 6200B
FC2742-8 TW-1
Benzene 34.7 5.0 1.3 ug/l SM 6200B
1,1-Dichloroethylene 1.6 J 5.0 1.3 ug/l SM 6200B
cis-1,2-Dichloroethylene 54.7 5.0 1.3 ug/l SM 6200B
trans-1,2-Dichloroethylene 9.6 5.0 1.3 ug/l SM 6200B
Di-Isopropyl Ether 54.0 5.0 1.3 ug/l SM 6200B
Ethylbenzene 10.9 5.0 1.3 ug/l SM 6200B
Isopropylbenzene 1.4 J 5.0 1.3 ug/l SM 6200B
Methyl Tert Butyl Ether 38.0 5.0 1.3 ug/l SM 6200B
Naphthalene 1.6 J 5.0 1.3 ug/l SM 6200B
Tert-Amyl Alcohol 1380 100 20 ug/l SM 6200B
Tert-Amyl Methyl Ether 7.6 J 10 2.0 ug/l SM 6200B
6 of 45
FC27422
Summary of Hits Page 4 of 4
Job Number:FC2742
Account:ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Collected:02/13/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
Tert-Butyl Alcohol 586 100 20 ug/l SM 6200B
Tetrachloroethylene 228 5.0 1.3 ug/l SM 6200B
Trichloroethylene 86.7 5.0 1.3 ug/l SM 6200B
Vinyl Chloride 20.4 5.0 1.3 ug/l SM 6200B
7 of 45
FC27422
SGS North America Inc.
Sample Results
Report of Analysis
Orlando, FL
Section 3
8 of 45
FC27423
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-2
Lab Sample ID:FC2742-1 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E111324.D 1 02/17/23 15:32 TD n/a n/a VE2657
Run #2 E111318.D 25 02/17/23 13:14 TD n/a n/a VE2657
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 2.0 ug/l
71-43-2 Benzene 216 a 13 3.1 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
78-93-3 2-Butanone (MEK) b ND 2.5 1.3 ug/l
104-51-8 n-Butylbenzene 5.5 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene 7.7 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane c ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene 161 a 13 3.1 ug/l
156-60-5 trans-1,2-Dichloroethylene 3.2 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
9 of 45
FC274233.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-2
Lab Sample ID:FC2742-1 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
108-20-3 Di-Isopropyl Ether 257 a 13 3.1 ug/l
64-17-5 Ethyl Alcohol c ND 100 65 ug/l
100-41-4 Ethylbenzene 44.7 0.50 0.13 ug/l
637-92-3 Ethyl Tert Butyl Ether ND 0.50 0.13 ug/l
591-78-6 2-Hexanone d ND 5.0 1.0 ug/l
98-82-8 Isopropylbenzene 32.9 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene 1.4 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride c ND 0.50 0.20 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
108-10-1 4-Methyl-2-pentanone (MIBK)ND 2.5 1.3 ug/l
1634-04-4 Methyl Tert Butyl Ether 134 a 13 3.1 ug/l
91-20-3 Naphthalene 13.2 0.50 0.13 ug/l
103-65-1 n-Propylbenzene 15.9 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
75-85-4 Tert-Amyl Alcohol 759 a 250 50 ug/l
994-05-8 Tert-Amyl Methyl Ether 37.7 1.0 0.20 ug/l
75-65-0 Tert-Butyl Alcohol ND 10 2.0 ug/l
762-75-4 Tert-Butyl Formate e ND 10 2.0 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene 45.8 0.50 0.13 ug/l
108-88-3 Toluene 1.3 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene 36.8 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene 32.1 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene 8.6 0.50 0.13 ug/l
108-05-4 Vinyl Acetate ND 5.0 1.0 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene 4.8 1.0 0.13 ug/l
95-47-6 o-Xylene 2.1 0.50 0.13 ug/l
1330-20-7 Xylene (total)6.9 1.5 0.25 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
10 of 45
FC274233.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-2
Lab Sample ID:FC2742-1 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 100%99%70-130%
17060-07-0 1,2-Dichloroethane-D4 114%110%70-130%
2037-26-5 Toluene-D8 98%98%70-130%
460-00-4 4-Bromofluorobenzene 107%105%70-130%
(a) Result is from Run# 2
(b) Associated CCV outside of control limits high, sample was ND.
(c) Associated BS recovery outside control limits high, sample is ND.
(d) Associated CCV and BS outside control limits high, sample is ND.
(e) Associated ICV, BS and CCV outside control limits high, sample is ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
11 of 45
FC274233.1
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-3
Lab Sample ID:FC2742-2 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E111319.D 50 02/17/23 13:37 TD n/a n/a VE2657
Run #2
Purge Volume
Run #1 10.0 ml
Run #2
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 500 100 ug/l
71-43-2 Benzene ND 25 6.3 ug/l
108-86-1 Bromobenzene ND 25 6.3 ug/l
74-97-5 Bromochloromethane ND 25 6.3 ug/l
75-27-4 Bromodichloromethane ND 25 6.3 ug/l
75-25-2 Bromoform ND 25 6.3 ug/l
78-93-3 2-Butanone (MEK) a ND 130 63 ug/l
104-51-8 n-Butylbenzene ND 25 6.3 ug/l
135-98-8 sec-Butylbenzene ND 25 6.3 ug/l
98-06-6 tert-Butylbenzene ND 25 6.3 ug/l
56-23-5 Carbon Tetrachloride ND 25 6.3 ug/l
108-90-7 Chlorobenzene ND 25 6.3 ug/l
75-00-3 Chloroethane ND 25 10 ug/l
67-66-3 Chloroform ND 25 6.3 ug/l
95-49-8 o-Chlorotoluene ND 25 6.3 ug/l
106-43-4 p-Chlorotoluene ND 25 6.3 ug/l
124-48-1 Dibromochloromethane ND 25 6.3 ug/l
106-93-4 1,2-Dibromoethane ND 25 6.3 ug/l
75-71-8 Dichlorodifluoromethane b ND 25 10 ug/l
95-50-1 1,2-Dichlorobenzene ND 25 6.3 ug/l
541-73-1 1,3-Dichlorobenzene ND 25 6.3 ug/l
106-46-7 1,4-Dichlorobenzene ND 25 6.3 ug/l
75-34-3 1,1-Dichloroethane ND 25 6.3 ug/l
107-06-2 1,2-Dichloroethane ND 25 6.3 ug/l
75-35-4 1,1-Dichloroethylene ND 25 6.3 ug/l
156-59-2 cis-1,2-Dichloroethylene 7.6 25 6.3 ug/l J
156-60-5 trans-1,2-Dichloroethylene ND 25 6.3 ug/l
78-87-5 1,2-Dichloropropane ND 25 6.3 ug/l
142-28-9 1,3-Dichloropropane ND 25 6.3 ug/l
594-20-7 2,2-Dichloropropane ND 25 6.3 ug/l
563-58-6 1,1-Dichloropropene ND 25 6.3 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 25 6.3 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
12 of 45
FC274233.2
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-3
Lab Sample ID:FC2742-2 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 25 6.3 ug/l
108-20-3 Di-Isopropyl Ether ND 25 6.3 ug/l
64-17-5 Ethyl Alcohol b ND 5000 3300 ug/l
100-41-4 Ethylbenzene ND 25 6.3 ug/l
637-92-3 Ethyl Tert Butyl Ether ND 25 6.3 ug/l
591-78-6 2-Hexanone c ND 250 50 ug/l
98-82-8 Isopropylbenzene ND 25 6.3 ug/l
99-87-6 p-Isopropyltoluene ND 25 6.3 ug/l
74-83-9 Methyl Bromide ND 25 10 ug/l
74-87-3 Methyl Chloride b ND 25 10 ug/l
75-09-2 Methylene Chloride ND 100 50 ug/l
108-10-1 4-Methyl-2-pentanone (MIBK)ND 130 63 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 25 6.3 ug/l
91-20-3 Naphthalene ND 25 6.3 ug/l
103-65-1 n-Propylbenzene ND 25 6.3 ug/l
100-42-5 Styrene ND 25 6.3 ug/l
75-85-4 Tert-Amyl Alcohol ND 500 100 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 50 10 ug/l
75-65-0 Tert-Butyl Alcohol ND 500 100 ug/l
762-75-4 Tert-Butyl Formate d ND 500 100 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 25 6.3 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 25 6.3 ug/l
127-18-4 Tetrachloroethylene 1390 25 6.3 ug/l
108-88-3 Toluene ND 25 6.3 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 25 6.3 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 25 6.3 ug/l
71-55-6 1,1,1-Trichloroethane ND 25 6.3 ug/l
79-00-5 1,1,2-Trichloroethane ND 25 6.3 ug/l
79-01-6 Trichloroethylene 10.4 25 6.3 ug/l J
75-69-4 Trichlorofluoromethane ND 25 10 ug/l
96-18-4 1,2,3-Trichloropropane ND 25 6.3 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 25 6.3 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 25 6.3 ug/l
108-05-4 Vinyl Acetate ND 250 50 ug/l
75-01-4 Vinyl Chloride ND 25 6.3 ug/l
m,p-Xylene ND 50 6.3 ug/l
95-47-6 o-Xylene ND 25 6.3 ug/l
1330-20-7 Xylene (total)ND 75 13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
13 of 45
FC274233.2
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-3
Lab Sample ID:FC2742-2 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 99%70-130%
17060-07-0 1,2-Dichloroethane-D4 110%70-130%
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 105%70-130%
(a) Associated CCV outside of control limits high, sample was ND.
(b) Associated BS recovery outside control limits high, sample is ND.
(c) Associated CCV and BS outside control limits high, sample is ND.
(d) Associated ICV, BS and CCV outside control limits high, sample is ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
14 of 45
FC274233.2
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-4
Lab Sample ID:FC2742-3 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E111320.D 1 02/17/23 14:00 TD n/a n/a VE2657
Run #2
Purge Volume
Run #1 10.0 ml
Run #2
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 2.0 ug/l
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
78-93-3 2-Butanone (MEK) a ND 2.5 1.3 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane b ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
15 of 45
FC274233.3
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-4
Lab Sample ID:FC2742-3 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
64-17-5 Ethyl Alcohol b ND 100 65 ug/l
100-41-4 Ethylbenzene ND 0.50 0.13 ug/l
637-92-3 Ethyl Tert Butyl Ether ND 0.50 0.13 ug/l
591-78-6 2-Hexanone c ND 5.0 1.0 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride b ND 0.50 0.20 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
108-10-1 4-Methyl-2-pentanone (MIBK)ND 2.5 1.3 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene ND 0.50 0.13 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
75-85-4 Tert-Amyl Alcohol ND 10 2.0 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 1.0 0.20 ug/l
75-65-0 Tert-Butyl Alcohol ND 10 2.0 ug/l
762-75-4 Tert-Butyl Formate d ND 10 2.0 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene 0.38 0.50 0.13 ug/l J
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l
108-05-4 Vinyl Acetate ND 5.0 1.0 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene ND 0.50 0.13 ug/l
1330-20-7 Xylene (total)ND 1.5 0.25 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
16 of 45
FC274233.3
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-4
Lab Sample ID:FC2742-3 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 99%70-130%
17060-07-0 1,2-Dichloroethane-D4 111%70-130%
2037-26-5 Toluene-D8 97%70-130%
460-00-4 4-Bromofluorobenzene 106%70-130%
(a) Associated CCV outside of control limits high, sample was ND.
(b) Associated BS recovery outside control limits high, sample is ND.
(c) Associated CCV and BS outside control limits high, sample is ND.
(d) Associated ICV, BS and CCV outside control limits high, sample is ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
17 of 45
FC274233.3
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-6
Lab Sample ID:FC2742-4 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E111325.D 1 02/17/23 15:55 TD n/a n/a VE2657
Run #2
Purge Volume
Run #1 10.0 ml
Run #2
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 2.0 ug/l
71-43-2 Benzene 7.9 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
78-93-3 2-Butanone (MEK) a ND 2.5 1.3 ug/l
104-51-8 n-Butylbenzene 0.33 0.50 0.13 ug/l J
135-98-8 sec-Butylbenzene 2.2 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane b ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene 1.2 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
18 of 45
FC274233.4
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-6
Lab Sample ID:FC2742-4 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
108-20-3 Di-Isopropyl Ether 21.4 0.50 0.13 ug/l
64-17-5 Ethyl Alcohol b ND 100 65 ug/l
100-41-4 Ethylbenzene 5.5 0.50 0.13 ug/l
637-92-3 Ethyl Tert Butyl Ether ND 0.50 0.13 ug/l
591-78-6 2-Hexanone c ND 5.0 1.0 ug/l
98-82-8 Isopropylbenzene 11.7 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene 0.16 0.50 0.13 ug/l J
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride b ND 0.50 0.20 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
108-10-1 4-Methyl-2-pentanone (MIBK)ND 2.5 1.3 ug/l
1634-04-4 Methyl Tert Butyl Ether 11.0 0.50 0.13 ug/l
91-20-3 Naphthalene 4.8 0.50 0.13 ug/l
103-65-1 n-Propylbenzene 9.0 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
75-85-4 Tert-Amyl Alcohol 315 10 2.0 ug/l
994-05-8 Tert-Amyl Methyl Ether 2.6 1.0 0.20 ug/l
75-65-0 Tert-Butyl Alcohol 161 10 2.0 ug/l
762-75-4 Tert-Butyl Formate d ND 10 2.0 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene 2.9 0.50 0.13 ug/l
108-88-3 Toluene 0.75 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene 2.4 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene 9.6 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene 0.73 0.50 0.13 ug/l
108-05-4 Vinyl Acetate ND 5.0 1.0 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene 4.1 1.0 0.13 ug/l
95-47-6 o-Xylene 1.4 0.50 0.13 ug/l
1330-20-7 Xylene (total)5.5 1.5 0.25 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
19 of 45
FC274233.4
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-6
Lab Sample ID:FC2742-4 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 101%70-130%
17060-07-0 1,2-Dichloroethane-D4 109%70-130%
2037-26-5 Toluene-D8 98%70-130%
460-00-4 4-Bromofluorobenzene 104%70-130%
(a) Associated CCV outside of control limits high, sample was ND.
(b) Associated BS recovery outside control limits high, sample is ND.
(c) Associated CCV and BS outside control limits high, sample is ND.
(d) Associated ICV, BS and CCV outside control limits high, sample is ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
20 of 45
FC274233.4
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-12
Lab Sample ID:FC2742-5 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E111315.D 10 02/17/23 12:06 TD n/a n/a VE2657
Run #2
Purge Volume
Run #1 10.0 ml
Run #2
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 100 20 ug/l
71-43-2 Benzene ND 5.0 1.3 ug/l
108-86-1 Bromobenzene ND 5.0 1.3 ug/l
74-97-5 Bromochloromethane ND 5.0 1.3 ug/l
75-27-4 Bromodichloromethane ND 5.0 1.3 ug/l
75-25-2 Bromoform ND 5.0 1.3 ug/l
78-93-3 2-Butanone (MEK) a ND 25 13 ug/l
104-51-8 n-Butylbenzene ND 5.0 1.3 ug/l
135-98-8 sec-Butylbenzene ND 5.0 1.3 ug/l
98-06-6 tert-Butylbenzene ND 5.0 1.3 ug/l
56-23-5 Carbon Tetrachloride ND 5.0 1.3 ug/l
108-90-7 Chlorobenzene ND 5.0 1.3 ug/l
75-00-3 Chloroethane ND 5.0 2.0 ug/l
67-66-3 Chloroform ND 5.0 1.3 ug/l
95-49-8 o-Chlorotoluene ND 5.0 1.3 ug/l
106-43-4 p-Chlorotoluene ND 5.0 1.3 ug/l
124-48-1 Dibromochloromethane ND 5.0 1.3 ug/l
106-93-4 1,2-Dibromoethane ND 5.0 1.3 ug/l
75-71-8 Dichlorodifluoromethane b ND 5.0 2.0 ug/l
95-50-1 1,2-Dichlorobenzene ND 5.0 1.3 ug/l
541-73-1 1,3-Dichlorobenzene ND 5.0 1.3 ug/l
106-46-7 1,4-Dichlorobenzene ND 5.0 1.3 ug/l
75-34-3 1,1-Dichloroethane ND 5.0 1.3 ug/l
107-06-2 1,2-Dichloroethane ND 5.0 1.3 ug/l
75-35-4 1,1-Dichloroethylene ND 5.0 1.3 ug/l
156-59-2 cis-1,2-Dichloroethylene 1.7 5.0 1.3 ug/l J
156-60-5 trans-1,2-Dichloroethylene ND 5.0 1.3 ug/l
78-87-5 1,2-Dichloropropane ND 5.0 1.3 ug/l
142-28-9 1,3-Dichloropropane ND 5.0 1.3 ug/l
594-20-7 2,2-Dichloropropane ND 5.0 1.3 ug/l
563-58-6 1,1-Dichloropropene ND 5.0 1.3 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 5.0 1.3 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
21 of 45
FC274233.5
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-12
Lab Sample ID:FC2742-5 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 5.0 1.3 ug/l
108-20-3 Di-Isopropyl Ether 1.6 5.0 1.3 ug/l J
64-17-5 Ethyl Alcohol b ND 1000 650 ug/l
100-41-4 Ethylbenzene 3.5 5.0 1.3 ug/l J
637-92-3 Ethyl Tert Butyl Ether ND 5.0 1.3 ug/l
591-78-6 2-Hexanone c ND 50 10 ug/l
98-82-8 Isopropylbenzene ND 5.0 1.3 ug/l
99-87-6 p-Isopropyltoluene ND 5.0 1.3 ug/l
74-83-9 Methyl Bromide ND 5.0 2.0 ug/l
74-87-3 Methyl Chloride b ND 5.0 2.0 ug/l
75-09-2 Methylene Chloride ND 20 10 ug/l
108-10-1 4-Methyl-2-pentanone (MIBK)ND 25 13 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 5.0 1.3 ug/l
91-20-3 Naphthalene ND 5.0 1.3 ug/l
103-65-1 n-Propylbenzene 2.0 5.0 1.3 ug/l J
100-42-5 Styrene ND 5.0 1.3 ug/l
75-85-4 Tert-Amyl Alcohol ND 100 20 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 10 2.0 ug/l
75-65-0 Tert-Butyl Alcohol ND 100 20 ug/l
762-75-4 Tert-Butyl Formate d ND 100 20 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 5.0 1.3 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 5.0 1.3 ug/l
127-18-4 Tetrachloroethylene 242 5.0 1.3 ug/l
108-88-3 Toluene ND 5.0 1.3 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 5.0 1.3 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 5.0 1.3 ug/l
71-55-6 1,1,1-Trichloroethane ND 5.0 1.3 ug/l
79-00-5 1,1,2-Trichloroethane ND 5.0 1.3 ug/l
79-01-6 Trichloroethylene 3.4 5.0 1.3 ug/l J
75-69-4 Trichlorofluoromethane ND 5.0 2.0 ug/l
96-18-4 1,2,3-Trichloropropane ND 5.0 1.3 ug/l
95-63-6 1,2,4-Trimethylbenzene 8.7 5.0 1.3 ug/l
108-67-8 1,3,5-Trimethylbenzene 3.6 5.0 1.3 ug/l J
108-05-4 Vinyl Acetate ND 50 10 ug/l
75-01-4 Vinyl Chloride ND 5.0 1.3 ug/l
m,p-Xylene 6.7 10 1.3 ug/l J
95-47-6 o-Xylene ND 5.0 1.3 ug/l
1330-20-7 Xylene (total)6.7 15 2.5 ug/l J
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
22 of 45
FC274233.5
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-12
Lab Sample ID:FC2742-5 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 101%70-130%
17060-07-0 1,2-Dichloroethane-D4 110%70-130%
2037-26-5 Toluene-D8 101%70-130%
460-00-4 4-Bromofluorobenzene 107%70-130%
(a) Associated CCV outside of control limits high, sample was ND.
(b) Associated BS recovery outside control limits high, sample is ND.
(c) Associated CCV and BS outside control limits high, sample is ND.
(d) Associated ICV, BS and CCV outside control limits high, sample is ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
23 of 45
FC274233.5
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-13
Lab Sample ID:FC2742-6 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E111316.D 10 02/17/23 12:28 TD n/a n/a VE2657
Run #2 E111322.D 25 02/17/23 14:46 TD n/a n/a VE2657
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 100 20 ug/l
71-43-2 Benzene 582 a 13 3.1 ug/l
108-86-1 Bromobenzene ND 5.0 1.3 ug/l
74-97-5 Bromochloromethane ND 5.0 1.3 ug/l
75-27-4 Bromodichloromethane ND 5.0 1.3 ug/l
75-25-2 Bromoform ND 5.0 1.3 ug/l
78-93-3 2-Butanone (MEK) b ND 25 13 ug/l
104-51-8 n-Butylbenzene 13.9 5.0 1.3 ug/l
135-98-8 sec-Butylbenzene 10.3 5.0 1.3 ug/l
98-06-6 tert-Butylbenzene ND 5.0 1.3 ug/l
56-23-5 Carbon Tetrachloride ND 5.0 1.3 ug/l
108-90-7 Chlorobenzene ND 5.0 1.3 ug/l
75-00-3 Chloroethane ND 5.0 2.0 ug/l
67-66-3 Chloroform ND 5.0 1.3 ug/l
95-49-8 o-Chlorotoluene ND 5.0 1.3 ug/l
106-43-4 p-Chlorotoluene ND 5.0 1.3 ug/l
124-48-1 Dibromochloromethane ND 5.0 1.3 ug/l
106-93-4 1,2-Dibromoethane ND 5.0 1.3 ug/l
75-71-8 Dichlorodifluoromethane c ND 5.0 2.0 ug/l
95-50-1 1,2-Dichlorobenzene ND 5.0 1.3 ug/l
541-73-1 1,3-Dichlorobenzene ND 5.0 1.3 ug/l
106-46-7 1,4-Dichlorobenzene ND 5.0 1.3 ug/l
75-34-3 1,1-Dichloroethane ND 5.0 1.3 ug/l
107-06-2 1,2-Dichloroethane ND 5.0 1.3 ug/l
75-35-4 1,1-Dichloroethylene ND 5.0 1.3 ug/l
156-59-2 cis-1,2-Dichloroethylene 2.4 5.0 1.3 ug/l J
156-60-5 trans-1,2-Dichloroethylene ND 5.0 1.3 ug/l
78-87-5 1,2-Dichloropropane ND 5.0 1.3 ug/l
142-28-9 1,3-Dichloropropane ND 5.0 1.3 ug/l
594-20-7 2,2-Dichloropropane ND 5.0 1.3 ug/l
563-58-6 1,1-Dichloropropene ND 5.0 1.3 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 5.0 1.3 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
24 of 45
FC274233.6
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-13
Lab Sample ID:FC2742-6 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 5.0 1.3 ug/l
108-20-3 Di-Isopropyl Ether 196 5.0 1.3 ug/l
64-17-5 Ethyl Alcohol c ND 1000 650 ug/l
100-41-4 Ethylbenzene 260 5.0 1.3 ug/l
637-92-3 Ethyl Tert Butyl Ether ND 5.0 1.3 ug/l
591-78-6 2-Hexanone d ND 50 10 ug/l
98-82-8 Isopropylbenzene 74.7 5.0 1.3 ug/l
99-87-6 p-Isopropyltoluene 6.4 5.0 1.3 ug/l
74-83-9 Methyl Bromide ND 5.0 2.0 ug/l
74-87-3 Methyl Chloride c ND 5.0 2.0 ug/l
75-09-2 Methylene Chloride ND 20 10 ug/l
108-10-1 4-Methyl-2-pentanone (MIBK)ND 25 13 ug/l
1634-04-4 Methyl Tert Butyl Ether 58.9 5.0 1.3 ug/l
91-20-3 Naphthalene 107 5.0 1.3 ug/l
103-65-1 n-Propylbenzene 92.9 5.0 1.3 ug/l
100-42-5 Styrene 2.3 5.0 1.3 ug/l J
75-85-4 Tert-Amyl Alcohol 581 100 20 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 10 2.0 ug/l
75-65-0 Tert-Butyl Alcohol ND 100 20 ug/l
762-75-4 Tert-Butyl Formate e ND 100 20 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 5.0 1.3 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 5.0 1.3 ug/l
127-18-4 Tetrachloroethylene 123 5.0 1.3 ug/l
108-88-3 Toluene 975 a 13 3.1 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 5.0 1.3 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 5.0 1.3 ug/l
71-55-6 1,1,1-Trichloroethane ND 5.0 1.3 ug/l
79-00-5 1,1,2-Trichloroethane ND 5.0 1.3 ug/l
79-01-6 Trichloroethylene 17.4 5.0 1.3 ug/l
75-69-4 Trichlorofluoromethane ND 5.0 2.0 ug/l
96-18-4 1,2,3-Trichloropropane ND 5.0 1.3 ug/l
95-63-6 1,2,4-Trimethylbenzene 699 a 13 3.1 ug/l
108-67-8 1,3,5-Trimethylbenzene 186 5.0 1.3 ug/l
108-05-4 Vinyl Acetate ND 50 10 ug/l
75-01-4 Vinyl Chloride ND 5.0 1.3 ug/l
m,p-Xylene 1360 a 25 3.1 ug/l
95-47-6 o-Xylene 778 a 13 3.1 ug/l
1330-20-7 Xylene (total)2140 a 38 6.3 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
25 of 45
FC274233.6
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-13
Lab Sample ID:FC2742-6 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 99%101%70-130%
17060-07-0 1,2-Dichloroethane-D4 110%112%70-130%
2037-26-5 Toluene-D8 101%99%70-130%
460-00-4 4-Bromofluorobenzene 107%107%70-130%
(a) Result is from Run# 2
(b) Associated CCV outside of control limits high, sample was ND.
(c) Associated BS recovery outside control limits high, sample is ND.
(d) Associated CCV and BS outside control limits high, sample is ND.
(e) Associated ICV, BS and CCV outside control limits high, sample is ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
26 of 45
FC274233.6
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-14
Lab Sample ID:FC2742-7 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E111317.D 10 02/17/23 12:51 TD n/a n/a VE2657
Run #2
Purge Volume
Run #1 10.0 ml
Run #2
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 100 20 ug/l
71-43-2 Benzene 91.8 5.0 1.3 ug/l
108-86-1 Bromobenzene ND 5.0 1.3 ug/l
74-97-5 Bromochloromethane ND 5.0 1.3 ug/l
75-27-4 Bromodichloromethane ND 5.0 1.3 ug/l
75-25-2 Bromoform ND 5.0 1.3 ug/l
78-93-3 2-Butanone (MEK) a ND 25 13 ug/l
104-51-8 n-Butylbenzene 17.0 5.0 1.3 ug/l
135-98-8 sec-Butylbenzene 13.0 5.0 1.3 ug/l
98-06-6 tert-Butylbenzene ND 5.0 1.3 ug/l
56-23-5 Carbon Tetrachloride ND 5.0 1.3 ug/l
108-90-7 Chlorobenzene ND 5.0 1.3 ug/l
75-00-3 Chloroethane ND 5.0 2.0 ug/l
67-66-3 Chloroform ND 5.0 1.3 ug/l
95-49-8 o-Chlorotoluene ND 5.0 1.3 ug/l
106-43-4 p-Chlorotoluene ND 5.0 1.3 ug/l
124-48-1 Dibromochloromethane ND 5.0 1.3 ug/l
106-93-4 1,2-Dibromoethane ND 5.0 1.3 ug/l
75-71-8 Dichlorodifluoromethane b ND 5.0 2.0 ug/l
95-50-1 1,2-Dichlorobenzene ND 5.0 1.3 ug/l
541-73-1 1,3-Dichlorobenzene ND 5.0 1.3 ug/l
106-46-7 1,4-Dichlorobenzene ND 5.0 1.3 ug/l
75-34-3 1,1-Dichloroethane ND 5.0 1.3 ug/l
107-06-2 1,2-Dichloroethane ND 5.0 1.3 ug/l
75-35-4 1,1-Dichloroethylene ND 5.0 1.3 ug/l
156-59-2 cis-1,2-Dichloroethylene 216 5.0 1.3 ug/l
156-60-5 trans-1,2-Dichloroethylene 2.3 5.0 1.3 ug/l J
78-87-5 1,2-Dichloropropane ND 5.0 1.3 ug/l
142-28-9 1,3-Dichloropropane ND 5.0 1.3 ug/l
594-20-7 2,2-Dichloropropane ND 5.0 1.3 ug/l
563-58-6 1,1-Dichloropropene ND 5.0 1.3 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 5.0 1.3 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
27 of 45
FC274233.7
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-14
Lab Sample ID:FC2742-7 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 5.0 1.3 ug/l
108-20-3 Di-Isopropyl Ether 187 5.0 1.3 ug/l
64-17-5 Ethyl Alcohol b ND 1000 650 ug/l
100-41-4 Ethylbenzene 269 5.0 1.3 ug/l
637-92-3 Ethyl Tert Butyl Ether ND 5.0 1.3 ug/l
591-78-6 2-Hexanone c ND 50 10 ug/l
98-82-8 Isopropylbenzene 139 5.0 1.3 ug/l
99-87-6 p-Isopropyltoluene 7.8 5.0 1.3 ug/l
74-83-9 Methyl Bromide ND 5.0 2.0 ug/l
74-87-3 Methyl Chloride b ND 5.0 2.0 ug/l
75-09-2 Methylene Chloride ND 20 10 ug/l
108-10-1 4-Methyl-2-pentanone (MIB b ND 25 13 ug/l
1634-04-4 Methyl Tert Butyl Ether 102 5.0 1.3 ug/l
91-20-3 Naphthalene 80.0 5.0 1.3 ug/l
103-65-1 n-Propylbenzene 83.1 5.0 1.3 ug/l
100-42-5 Styrene ND 5.0 1.3 ug/l
75-85-4 Tert-Amyl Alcohol 661 100 20 ug/l
994-05-8 Tert-Amyl Methyl Ether 25.5 10 2.0 ug/l
75-65-0 Tert-Butyl Alcohol ND 100 20 ug/l
762-75-4 Tert-Butyl Formate d ND 100 20 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 5.0 1.3 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 5.0 1.3 ug/l
127-18-4 Tetrachloroethylene 19.3 5.0 1.3 ug/l
108-88-3 Toluene 39.5 5.0 1.3 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 5.0 1.3 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 5.0 1.3 ug/l
71-55-6 1,1,1-Trichloroethane ND 5.0 1.3 ug/l
79-00-5 1,1,2-Trichloroethane ND 5.0 1.3 ug/l
79-01-6 Trichloroethylene 26.4 5.0 1.3 ug/l
75-69-4 Trichlorofluoromethane ND 5.0 2.0 ug/l
96-18-4 1,2,3-Trichloropropane ND 5.0 1.3 ug/l
95-63-6 1,2,4-Trimethylbenzene 482 5.0 1.3 ug/l
108-67-8 1,3,5-Trimethylbenzene 146 5.0 1.3 ug/l
108-05-4 Vinyl Acetate ND 50 10 ug/l
75-01-4 Vinyl Chloride ND 5.0 1.3 ug/l
m,p-Xylene 428 10 1.3 ug/l
95-47-6 o-Xylene 31.8 5.0 1.3 ug/l
1330-20-7 Xylene (total)460 15 2.5 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
28 of 45
FC274233.7
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-14
Lab Sample ID:FC2742-7 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 98%70-130%
17060-07-0 1,2-Dichloroethane-D4 110%70-130%
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 105%70-130%
(a) Associated CCV outside of control limits high, sample was ND.
(b) Associated BS recovery outside control limits high, sample is ND.
(c) Associated CCV and BS outside control limits high, sample is ND.
(d) Associated ICV, BS and CCV outside control limits high, sample is ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
29 of 45
FC274233.7
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:TW-1
Lab Sample ID:FC2742-8 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E111323.D 10 02/17/23 15:08 TD n/a n/a VE2657
Run #2
Purge Volume
Run #1 10.0 ml
Run #2
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 100 20 ug/l
71-43-2 Benzene 34.7 5.0 1.3 ug/l
108-86-1 Bromobenzene ND 5.0 1.3 ug/l
74-97-5 Bromochloromethane ND 5.0 1.3 ug/l
75-27-4 Bromodichloromethane ND 5.0 1.3 ug/l
75-25-2 Bromoform ND 5.0 1.3 ug/l
78-93-3 2-Butanone (MEK) a ND 25 13 ug/l
104-51-8 n-Butylbenzene ND 5.0 1.3 ug/l
135-98-8 sec-Butylbenzene ND 5.0 1.3 ug/l
98-06-6 tert-Butylbenzene ND 5.0 1.3 ug/l
56-23-5 Carbon Tetrachloride ND 5.0 1.3 ug/l
108-90-7 Chlorobenzene ND 5.0 1.3 ug/l
75-00-3 Chloroethane ND 5.0 2.0 ug/l
67-66-3 Chloroform ND 5.0 1.3 ug/l
95-49-8 o-Chlorotoluene ND 5.0 1.3 ug/l
106-43-4 p-Chlorotoluene ND 5.0 1.3 ug/l
124-48-1 Dibromochloromethane ND 5.0 1.3 ug/l
106-93-4 1,2-Dibromoethane ND 5.0 1.3 ug/l
75-71-8 Dichlorodifluoromethane b ND 5.0 2.0 ug/l
95-50-1 1,2-Dichlorobenzene ND 5.0 1.3 ug/l
541-73-1 1,3-Dichlorobenzene ND 5.0 1.3 ug/l
106-46-7 1,4-Dichlorobenzene ND 5.0 1.3 ug/l
75-34-3 1,1-Dichloroethane ND 5.0 1.3 ug/l
107-06-2 1,2-Dichloroethane ND 5.0 1.3 ug/l
75-35-4 1,1-Dichloroethylene 1.6 5.0 1.3 ug/l J
156-59-2 cis-1,2-Dichloroethylene 54.7 5.0 1.3 ug/l
156-60-5 trans-1,2-Dichloroethylene 9.6 5.0 1.3 ug/l
78-87-5 1,2-Dichloropropane ND 5.0 1.3 ug/l
142-28-9 1,3-Dichloropropane ND 5.0 1.3 ug/l
594-20-7 2,2-Dichloropropane ND 5.0 1.3 ug/l
563-58-6 1,1-Dichloropropene ND 5.0 1.3 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 5.0 1.3 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
30 of 45
FC274233.8
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:TW-1
Lab Sample ID:FC2742-8 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 5.0 1.3 ug/l
108-20-3 Di-Isopropyl Ether 54.0 5.0 1.3 ug/l
64-17-5 Ethyl Alcohol b ND 1000 650 ug/l
100-41-4 Ethylbenzene 10.9 5.0 1.3 ug/l
637-92-3 Ethyl Tert Butyl Ether ND 5.0 1.3 ug/l
591-78-6 2-Hexanone c ND 50 10 ug/l
98-82-8 Isopropylbenzene 1.4 5.0 1.3 ug/l J
99-87-6 p-Isopropyltoluene ND 5.0 1.3 ug/l
74-83-9 Methyl Bromide ND 5.0 2.0 ug/l
74-87-3 Methyl Chloride b ND 5.0 2.0 ug/l
75-09-2 Methylene Chloride ND 20 10 ug/l
108-10-1 4-Methyl-2-pentanone (MIBK)ND 25 13 ug/l
1634-04-4 Methyl Tert Butyl Ether 38.0 5.0 1.3 ug/l
91-20-3 Naphthalene 1.6 5.0 1.3 ug/l J
103-65-1 n-Propylbenzene ND 5.0 1.3 ug/l
100-42-5 Styrene ND 5.0 1.3 ug/l
75-85-4 Tert-Amyl Alcohol 1380 100 20 ug/l
994-05-8 Tert-Amyl Methyl Ether 7.6 10 2.0 ug/l J
75-65-0 Tert-Butyl Alcohol 586 100 20 ug/l
762-75-4 Tert-Butyl Formate d ND 100 20 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 5.0 1.3 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 5.0 1.3 ug/l
127-18-4 Tetrachloroethylene 228 5.0 1.3 ug/l
108-88-3 Toluene ND 5.0 1.3 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 5.0 1.3 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 5.0 1.3 ug/l
71-55-6 1,1,1-Trichloroethane ND 5.0 1.3 ug/l
79-00-5 1,1,2-Trichloroethane ND 5.0 1.3 ug/l
79-01-6 Trichloroethylene 86.7 5.0 1.3 ug/l
75-69-4 Trichlorofluoromethane ND 5.0 2.0 ug/l
96-18-4 1,2,3-Trichloropropane ND 5.0 1.3 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 5.0 1.3 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 5.0 1.3 ug/l
108-05-4 Vinyl Acetate ND 50 10 ug/l
75-01-4 Vinyl Chloride 20.4 5.0 1.3 ug/l
m,p-Xylene ND 10 1.3 ug/l
95-47-6 o-Xylene ND 5.0 1.3 ug/l
1330-20-7 Xylene (total)ND 15 2.5 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
31 of 45
FC274233.8
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:TW-1
Lab Sample ID:FC2742-8 Date Sampled:02/13/23
Matrix:AQ - Ground Water Date Received:02/16/23
Method:SM 6200B Percent Solids:n/a
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
VOA List for NC, May 2012
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 100%70-130%
17060-07-0 1,2-Dichloroethane-D4 111%70-130%
2037-26-5 Toluene-D8 100%70-130%
460-00-4 4-Bromofluorobenzene 107%70-130%
(a) Associated CCV outside of control limits high, sample was ND.
(b) Associated BS recovery outside control limits high, sample is ND.
(c) Associated CCV and BS outside control limits high, sample is ND.
(d) Associated ICV, BS and CCV outside control limits high, sample is ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
32 of 45
FC274233.8
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Orlando, FL
Section 4
33 of 45
FC27424
FC2742: Chain of Custody
Page 1 of 2
34 of 45
FC274244.1
Job Number:FC2742 Client:ATC
Date / Time Received:2/16/2023 11:00:00 AM Delivery Method:FEDEX
Project:CIRCLE K #2720828
Airbill #'s:570790507863
Cooler Information
1. Custody Seals Present
2. Custody Seals Intact
4. Cooler temp verification
3. Temp criteria achieved
5. Cooler media
IR Gun
Ice (Bag)
Trip Blank Information
1. Trip Blank present / cooler
2. Trip Blank listed on COC
2. Samples preserved properly
Sample Information
1. Sample labels present on bottles
5. Sample recvd within HT
4. Condition of sample
3. Sufficient volume/containers recvd for analysis:
Intact
Comments
SM001Rev. Date 05/24/17
SGS Sample Receipt Summary
Cooler Temps (Raw Measured) °C:
Cooler Temps (Corrected) °C:
Cooler 1: (2.8);
Cooler 1: (3.0);
3. Type Of TB Received
W or S N/A
6. Dates/Times/IDs on COC match Sample Label
7. VOCs have headspace
8. Bottles received for unspecified tests
9. Compositing instructions clear
10. Voa Soil Kits/Jars received past 48hrs?
11. % Solids Jar received?
Misc. Information
25-Gram 5-GramNumber of Encores:Number of 5035 Field Kits:Number of Lab Filtered Metals:
Test Strip Lot #s:pH 0-3 230315 pH 10-12 219813A Other: (Specify)
Y or N N/A
Y or N
Therm ID:IR 1; Therm CF:0.2; # of Coolers:1
Y or N N/A
12. Residual Chlorine Present?
Residual Chlorine Test Strip Lot #:
Technician:Reviewer:ZANEB Date:Date:2/16/2023 11:00:00 A
FC2742: Chain of Custody
Page 2 of 2
35 of 45
FC274244.1
SGS North America Inc.
MS Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and Duplicate Summaries
Orlando, FL
Section 5
36 of 45
FC27425
Method Blank Summary Page 1 of 3
Job Number:FC2742
Account:ATCNCC ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2657-MB E111314.D 1 02/17/23 TD n/a n/a VE2657
The QC reported here applies to the following samples:Method: SM 6200B
FC2742-1, FC2742-2, FC2742-3, FC2742-4, FC2742-5, FC2742-6, FC2742-7, FC2742-8
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 2.0 ug/l
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
78-93-3 2-Butanone (MEK)ND 2.5 1.3 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
64-17-5 Ethyl Alcohol ND 100 65 ug/l
100-41-4 Ethylbenzene ND 0.50 0.13 ug/l
37 of 45
FC274255.1.1
Method Blank Summary Page 2 of 3
Job Number:FC2742
Account:ATCNCC ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2657-MB E111314.D 1 02/17/23 TD n/a n/a VE2657
The QC reported here applies to the following samples:Method: SM 6200B
FC2742-1, FC2742-2, FC2742-3, FC2742-4, FC2742-5, FC2742-6, FC2742-7, FC2742-8
CAS No.Compound Result RL MDL Units Q
637-92-3 Ethyl Tert Butyl Ether ND 0.50 0.13 ug/l
591-78-6 2-Hexanone ND 5.0 1.0 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
108-10-1 4-Methyl-2-pentanone (MIBK)ND 2.5 1.3 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene ND 0.50 0.13 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
75-85-4 Tert-Amyl Alcohol ND 10 2.0 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 1.0 0.20 ug/l
75-65-0 Tert-Butyl Alcohol ND 10 2.0 ug/l
762-75-4 Tert-Butyl Formate ND 10 2.0 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l
108-05-4 Vinyl Acetate ND 5.0 1.0 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene ND 0.50 0.13 ug/l
1330-20-7 Xylene (total)ND 1.5 0.25 ug/l
38 of 45
FC274255.1.1
Method Blank Summary Page 3 of 3
Job Number:FC2742
Account:ATCNCC ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2657-MB E111314.D 1 02/17/23 TD n/a n/a VE2657
The QC reported here applies to the following samples:Method: SM 6200B
FC2742-1, FC2742-2, FC2742-3, FC2742-4, FC2742-5, FC2742-6, FC2742-7, FC2742-8
CAS No.Surrogate Recoveries Limits
1868-53-7 Dibromofluoromethane 98%70-130%
17060-07-0 1,2-Dichloroethane-D4 108%70-130%
2037-26-5 Toluene-D8 101%70-130%
460-00-4 4-Bromofluorobenzene 107%70-130%
39 of 45
FC274255.1.1
Blank Spike Summary Page 1 of 3
Job Number:FC2742
Account:ATCNCC ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2657-BS E111312.D 1 02/17/23 TD n/a n/a VE2657
The QC reported here applies to the following samples:Method: SM 6200B
FC2742-1, FC2742-2, FC2742-3, FC2742-4, FC2742-5, FC2742-6, FC2742-7, FC2742-8
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
67-64-1 Acetone 50 62.2 124 70-130
71-43-2 Benzene 10 10.3 103 70-130
108-86-1 Bromobenzene 10 9.9 99 70-130
74-97-5 Bromochloromethane 10 9.6 96 70-130
75-27-4 Bromodichloromethane 10 10.0 100 70-130
75-25-2 Bromoform 10 7.6 76 70-130
78-93-3 2-Butanone (MEK)50 62.9 126 70-130
104-51-8 n-Butylbenzene 10 10.9 109 70-130
135-98-8 sec-Butylbenzene 10 9.8 98 70-130
98-06-6 tert-Butylbenzene 10 10.2 102 70-130
56-23-5 Carbon Tetrachloride 10 8.8 88 70-130
108-90-7 Chlorobenzene 10 9.4 94 70-130
75-00-3 Chloroethane 10 12.4 124 60-140
67-66-3 Chloroform 10 10.4 104 70-130
95-49-8 o-Chlorotoluene 10 10.4 104 70-130
106-43-4 p-Chlorotoluene 10 10.2 102 70-130
124-48-1 Dibromochloromethane 10 9.8 98 70-130
106-93-4 1,2-Dibromoethane 10 9.4 94 70-130
75-71-8 Dichlorodifluoromethane 10 18.2 182*60-140
95-50-1 1,2-Dichlorobenzene 10 9.5 95 70-130
541-73-1 1,3-Dichlorobenzene 10 9.3 93 70-130
106-46-7 1,4-Dichlorobenzene 10 9.2 92 70-130
75-34-3 1,1-Dichloroethane 10 10.1 101 70-130
107-06-2 1,2-Dichloroethane 10 10.4 104 70-130
75-35-4 1,1-Dichloroethylene 10 10.2 102 70-130
156-59-2 cis-1,2-Dichloroethylene 10 9.8 98 70-130
156-60-5 trans-1,2-Dichloroethylene 10 10.6 106 70-130
78-87-5 1,2-Dichloropropane 10 10.7 107 70-130
142-28-9 1,3-Dichloropropane 10 10.8 108 70-130
594-20-7 2,2-Dichloropropane 10 10.4 104 70-130
563-58-6 1,1-Dichloropropene 10 10.6 106 70-130
10061-01-5 cis-1,3-Dichloropropene 10 10.0 100 70-130
10061-02-6 trans-1,3-Dichloropropene 10 9.7 97 70-130
108-20-3 Di-Isopropyl Ether 10 10.6 106 70-130
64-17-5 Ethyl Alcohol 500 839 168*70-130
100-41-4 Ethylbenzene 10 10.1 101 70-130
* = Outside of Control Limits.
40 of 45
FC274255.2.1
Blank Spike Summary Page 2 of 3
Job Number:FC2742
Account:ATCNCC ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2657-BS E111312.D 1 02/17/23 TD n/a n/a VE2657
The QC reported here applies to the following samples:Method: SM 6200B
FC2742-1, FC2742-2, FC2742-3, FC2742-4, FC2742-5, FC2742-6, FC2742-7, FC2742-8
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
637-92-3 Ethyl Tert Butyl Ether 10 10.8 108 70-130
591-78-6 2-Hexanone 50 68.2 136*70-130
98-82-8 Isopropylbenzene 10 9.7 97 70-130
99-87-6 p-Isopropyltoluene 10 9.8 98 70-130
74-83-9 Methyl Bromide 10 13.3 133 60-140
74-87-3 Methyl Chloride 10 15.3 153*60-140
75-09-2 Methylene Chloride 10 11.1 111 70-130
108-10-1 4-Methyl-2-pentanone (MIBK)50 61.6 123 70-130
1634-04-4 Methyl Tert Butyl Ether 10 10.6 106 70-130
91-20-3 Naphthalene 10 9.3 93 70-130
103-65-1 n-Propylbenzene 10 10.6 106 70-130
100-42-5 Styrene 10 9.3 93 70-130
75-85-4 Tert-Amyl Alcohol 100 93.2 93 70-130
994-05-8 Tert-Amyl Methyl Ether 10 10.2 102 70-130
75-65-0 Tert-Butyl Alcohol 100 102 102 70-130
762-75-4 Tert-Butyl Formate 50 149 298*70-130
630-20-6 1,1,1,2-Tetrachloroethane 10 9.5 95 70-130
79-34-5 1,1,2,2-Tetrachloroethane 10 10.5 105 70-130
127-18-4 Tetrachloroethylene 10 8.9 89 70-130
108-88-3 Toluene 10 10.1 101 70-130
87-61-6 1,2,3-Trichlorobenzene 10 8.9 89 70-130
120-82-1 1,2,4-Trichlorobenzene 10 8.9 89 70-130
71-55-6 1,1,1-Trichloroethane 10 9.7 97 70-130
79-00-5 1,1,2-Trichloroethane 10 10.0 100 70-130
79-01-6 Trichloroethylene 10 9.8 98 70-130
75-69-4 Trichlorofluoromethane 10 12.0 120 60-140
96-18-4 1,2,3-Trichloropropane 10 10.9 109 70-130
95-63-6 1,2,4-Trimethylbenzene 10 10.1 101 70-130
108-67-8 1,3,5-Trimethylbenzene 10 10.4 104 70-130
108-05-4 Vinyl Acetate 50 51.8 104 70-130
75-01-4 Vinyl Chloride 10 13.1 131 60-140
m,p-Xylene 20 20.3 102 70-130
95-47-6 o-Xylene 10 9.8 98 70-130
1330-20-7 Xylene (total)30 30.0 100 70-130
* = Outside of Control Limits.
41 of 45
FC274255.2.1
Blank Spike Summary Page 3 of 3
Job Number:FC2742
Account:ATCNCC ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2657-BS E111312.D 1 02/17/23 TD n/a n/a VE2657
The QC reported here applies to the following samples:Method: SM 6200B
FC2742-1, FC2742-2, FC2742-3, FC2742-4, FC2742-5, FC2742-6, FC2742-7, FC2742-8
CAS No.Surrogate Recoveries BSP Limits
1868-53-7 Dibromofluoromethane 97%70-130%
17060-07-0 1,2-Dichloroethane-D4 112%70-130%
2037-26-5 Toluene-D8 103%70-130%
460-00-4 4-Bromofluorobenzene 105%70-130%
* = Outside of Control Limits.
42 of 45
FC274255.2.1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:FC2742
Account:ATCNCC ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
FC2742-6MS E111326.D 25 02/17/23 TD n/a n/a VE2657
FC2742-6MSD E111327.D 25 02/17/23 TD n/a n/a VE2657
FC2742-6 E111316.D 10 02/17/23 TD n/a n/a VE2657
FC2742-6 E111322.D 25 02/17/23 TD n/a n/a VE2657
The QC reported here applies to the following samples:Method: SM 6200B
FC2742-1, FC2742-2, FC2742-3, FC2742-4, FC2742-5, FC2742-6, FC2742-7, FC2742-8
FC2742-6 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
67-64-1 Acetone ND 1250 1680 134*1250 1520 122 10 70-130/20
71-43-2 Benzene 582 b 250 796 86 250 695 45* a 14 70-130/20
108-86-1 Bromobenzene ND 250 214 86 250 192 77 11 70-130/20
74-97-5 Bromochloromethane ND 250 207 83 250 187 75 10 70-130/20
75-27-4 Bromodichloromethane ND 250 212 85 250 185 74 14 70-130/20
75-25-2 Bromoform ND 250 158 63*250 141 56*11 70-130/20
78-93-3 2-Butanone (MEK)ND 1250 1540 123 1250 1400 112 10 70-130/20
104-51-8 n-Butylbenzene 13.9 250 245 92 250 214 80 14 70-130/20
135-98-8 sec-Butylbenzene 10.3 250 221 84 250 193 73 14 70-130/20
98-06-6 tert-Butylbenzene ND 250 220 88 250 189 76 15 70-130/20
56-23-5 Carbon Tetrachloride ND 250 209 84 250 177 71 17 70-130/20
108-90-7 Chlorobenzene ND 250 208 83 250 181 72 14 70-130/20
75-00-3 Chloroethane ND 250 320 128 250 266 106 18 60-140/20
67-66-3 Chloroform ND 250 232 93 250 199 80 15 70-130/20
95-49-8 o-Chlorotoluene ND 250 238 95 250 209 84 13 70-130/20
106-43-4 p-Chlorotoluene ND 250 217 87 250 188 75 14 70-130/20
124-48-1 Dibromochloromethane ND 250 204 82 250 180 72 13 70-130/20
106-93-4 1,2-Dibromoethane ND 250 198 79 250 174 70 13 70-130/20
75-71-8 Dichlorodifluoromethane ND 250 451 180*250 389 156*15 60-140/20
95-50-1 1,2-Dichlorobenzene ND 250 202 81 250 184 74 9 70-130/20
541-73-1 1,3-Dichlorobenzene ND 250 205 82 250 180 72 13 70-130/20
106-46-7 1,4-Dichlorobenzene ND 250 201 80 250 179 72 12 70-130/20
75-34-3 1,1-Dichloroethane ND 250 217 87 250 192 77 12 70-130/20
107-06-2 1,2-Dichloroethane ND 250 222 89 250 194 78 13 70-130/20
75-35-4 1,1-Dichloroethylene ND 250 230 92 250 199 80 14 70-130/20
156-59-2 cis-1,2-Dichloroethylene 2.4 J 250 214 85 250 188 74 13 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 250 234 94 250 200 80 16 70-130/20
78-87-5 1,2-Dichloropropane ND 250 238 95 250 206 82 14 70-130/20
142-28-9 1,3-Dichloropropane ND 250 219 88 250 196 78 11 70-130/20
594-20-7 2,2-Dichloropropane ND 250 233 93 250 202 81 14 70-130/20
563-58-6 1,1-Dichloropropene ND 250 236 94 250 203 81 15 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 250 218 87 250 191 76 13 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 250 197 79 250 174 70 12 70-130/20
108-20-3 Di-Isopropyl Ether 196 250 413 87 250 366 68*12 70-130/20
64-17-5 Ethyl Alcohol ND 12500 15300 122 12500 16100 129 5 70-130/20
100-41-4 Ethylbenzene 260 250 483 89 250 414 62*15 70-130/20
* = Outside of Control Limits.
43 of 45
FC274255.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:FC2742
Account:ATCNCC ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
FC2742-6MS E111326.D 25 02/17/23 TD n/a n/a VE2657
FC2742-6MSD E111327.D 25 02/17/23 TD n/a n/a VE2657
FC2742-6 E111316.D 10 02/17/23 TD n/a n/a VE2657
FC2742-6 E111322.D 25 02/17/23 TD n/a n/a VE2657
The QC reported here applies to the following samples:Method: SM 6200B
FC2742-1, FC2742-2, FC2742-3, FC2742-4, FC2742-5, FC2742-6, FC2742-7, FC2742-8
FC2742-6 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
637-92-3 Ethyl Tert Butyl Ether ND 250 226 90 250 204 82 10 70-130/20
591-78-6 2-Hexanone ND 1250 1590 127 1250 1410 113 12 70-130/20
98-82-8 Isopropylbenzene 74.7 250 287 85 250 248 69*15 70-130/20
99-87-6 p-Isopropyltoluene 6.4 250 219 85 250 191 74 14 70-130/20
74-83-9 Methyl Bromide ND 250 308 123 250 266 106 15 60-140/20
74-87-3 Methyl Chloride ND 250 387 155*250 327 131 17 60-140/20
75-09-2 Methylene Chloride ND 250 245 98 250 217 87 12 70-130/20
108-10-1 4-Methyl-2-pentanone (MIBK)ND 1250 1500 120 1250 1340 107 11 70-130/20
1634-04-4 Methyl Tert Butyl Ether 58.9 250 279 88 250 247 75 12 70-130/20
91-20-3 Naphthalene 107 250 301 78 250 270 65*11 70-130/20
103-65-1 n-Propylbenzene 92.9 250 314 88 250 274 72 14 70-130/20
100-42-5 Styrene 2.3 J 250 208 82 250 182 72 13 70-130/20
75-85-4 Tert-Amyl Alcohol 581 2500 2850 91 2500 2540 78 12 70-130/20
994-05-8 Tert-Amyl Methyl Ether ND 250 246 98 250 220 88 11 70-130/20
75-65-0 Tert-Butyl Alcohol ND 2500 2470 99 2500 2290 92 8 70-130/20
762-75-4 Tert-Butyl Formate ND 1250 4120 330*1250 3670 294*12 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 250 201 80 250 178 71 12 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 250 205 82 250 182 73 12 70-130/20
127-18-4 Tetrachloroethylene 123 250 345 89 250 295 69*16 70-130/20
108-88-3 Toluene 975 b 250 1180 82 250 1020 18* a 15 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 250 199 80 250 176 70 12 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 250 199 80 250 179 72 11 70-130/20
71-55-6 1,1,1-Trichloroethane ND 250 219 88 250 192 77 13 70-130/20
79-00-5 1,1,2-Trichloroethane ND 250 207 83 250 177 71 16 70-130/20
79-01-6 Trichloroethylene 17.4 250 241 89 250 209 77 14 70-130/20
75-69-4 Trichlorofluoromethane ND 250 305 122 250 259 104 16 60-140/20
96-18-4 1,2,3-Trichloropropane ND 250 223 89 250 200 80 11 70-130/20
95-63-6 1,2,4-Trimethylbenzene 699 b 250 842 57* a 250 738 16* a 13 70-130/20
108-67-8 1,3,5-Trimethylbenzene 186 250 398 85 250 351 66*13 70-130/20
108-05-4 Vinyl Acetate ND 1250 1320 106 1250 1170 94 12 70-130/20
75-01-4 Vinyl Chloride ND 250 337 135 250 284 114 17 60-140/20
m,p-Xylene 1360 b 500 1760 80 500 1520 32* a 15 70-130/20
95-47-6 o-Xylene 778 b 250 961 73 250 833 22* a 14 70-130/20
1330-20-7 Xylene (total)2140 b 750 2730 79 750 2350 28* a 15 70-130/20
* = Outside of Control Limits.
44 of 45
FC274255.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:FC2742
Account:ATCNCC ATC Group Services LLC
Project:Circle K 2720828; 10329 Park Rd, Charlotte, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
FC2742-6MS E111326.D 25 02/17/23 TD n/a n/a VE2657
FC2742-6MSD E111327.D 25 02/17/23 TD n/a n/a VE2657
FC2742-6 E111316.D 10 02/17/23 TD n/a n/a VE2657
FC2742-6 E111322.D 25 02/17/23 TD n/a n/a VE2657
The QC reported here applies to the following samples:Method: SM 6200B
FC2742-1, FC2742-2, FC2742-3, FC2742-4, FC2742-5, FC2742-6, FC2742-7, FC2742-8
CAS No.Surrogate Recoveries MS MSD FC2742-6 FC2742-6 Limits
1868-53-7 Dibromofluoromethane 103%102%99%101%70-130%
17060-07-0 1,2-Dichloroethane-D4 112%111%110%112%70-130%
2037-26-5 Toluene-D8 98%98%101%99%70-130%
460-00-4 4-Bromofluorobenzene 103%104%107%107%70-130%
(a) Outside control limits due to high level in sample relative to spike amount.
(b) Result is from Run #2.
* = Outside of Control Limits.
45 of 45
FC274255.3.1