RA-6738_33892_CA_RPTS_20211104_MRP

609A Piner Road, Suite 115
Wilmington, North Carolina 28409
Telephone [phone]
Fax [phone]
www.atcgroupservices.com

November 4, 2021

Mr. Sean Patrick
North Carolina Department of Environmental Quality
Division of Waste Management, UST Section
Raleigh Regional Office
1628 Mail Service Center
Raleigh, North Carolina 27699

Re: Groundwater Sampling Results
Circle K Store #2723471
4940 U.S. Highway 264 West
Wilson, Wilson County, North Carolina
NCDEQ Incident Number 33892
Priority Site Rank: H155A

Dear Mr. Patrick:

On behalf of Circle K Stores, Inc. (Formerly The Pantry), ATC Associates of North Carolina, P.C. (ATC)
has prepared this letter report to provide a summary of the recent groundwater sampling event performed
at the facility. A site vicinity map is provided as Figure 1 and a site map is provided as Figure 2.

Groundwater Sampling
On October 18, 2021, ATC collected a static water level measurements from monitoring wells MW-1,
MW-2, MW-3, MW-5, MW-6, and DW-1. Light non-aqueous phase liquid (LNAPL) was measured in the
monitoring well MW-3 at a thickness of 1.58 feet on this date. The depth to water measurements were
collected using an electronic oil/water interface probe. A summary of groundwater elevation data is
provided in Table 1. A groundwater elevation contour map is provided as Figure 3. It appears groundwater
flow in a north-northwestern direction across the site.

On October 18, 2021, groundwater samples were collected from monitoring wells MW-1, MW-2, MW-5,
MW-6, and DW-1, following standard sampling protocols. The groundwater samples were collected into
laboratory-approved containers, packed in ice, and delivered under chain-of-custody to SGS North
America, Inc. (SGS) in Scott, Louisiana, for analyses. The groundwater samples collected from the
monitoring wells were analyzed by Environmental Protection Agency (EPA) Method 6200B. Select natural
attenuation measurements are provided in Table 2.

November 4,2021
Page 2 of 2tllvlR0lltiltlllll-' It0TtIHfi lelt
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Laboratory analy.tical results detected a dissolved benzene concentration equal to its established 2B x l0
Surface Water Standard in the groundwater sample collected from monitoring well MW-I. LNAPL was
detected in monitoring well MW-3. Other dissolved target compound concentrations were detected in the
other wells sampled; however, the concentrations were below the established 28 x 10 Surface Water
Standards. A summary of the groundwater analytical data is provided in Table J. Dissolved contaminants
of concern are provided on Figure 4. A copy of the laboratory analytical report is included as Attachmenl
I.
If you have any questions or require additional information, please contact our office at (91 9) 871 -0999.
Sincerely,
ATC Associates of North Carolina, P r\f$fi
,'L
M
Senior Project Manager
N.C. Licensed Geologist No. 2312
cc: Mr. Alan Cubberley, Circle K Stores

TABLES

TABLE 1
GROUNDWATER ELEVATIONS AND HISTORICAL DATA
CIRCLE K STORE #2723471
4940 U.S. HIGHWAY 264 WEST
WILSON, NORTH CAROLINA
NCDEQ INCIDENT NO. 33892
WELL
I.D. Date
TOC
Elevation
(ft)
Depth to
LNAPL
(ft)
Depth to
Groundwater
(ft)
Product
Thickness
(ft)
Groundwater
Elevations (ft)
8/5/2013 5.53 6.38 0.85 94.27
3/4/2015 --4.70 --95.30
6/2/2016 --4.85 --95.15
12/22/2016 --5.76 --94.24
6/14/2017 --4.70 --95.30
3/22/2018 --4.70 --95.30
9/5/2018 --4.90 --95.10
3/5/2019 --4.57 --95.43
9/4/2019 --7.51 --92.49
3/17/2020 --5.17 --94.83
10/21/2020 --4.97 --95.03
10/18/2021 --6.99 --93.01
8/5/2013
3/4/2015 --6.93 --87.15
6/2/2016 --8.35 --85.73
12/22/2016 --9.58 --84.50
6/14/2017 --8.16 --85.92
3/22/2018 --8.31 --85.77
9/5/2018 --9.42 --84.66
3/5/2019 --7.08 --87.00
9/4/2019
3/17/2020 --8.96 --85.12
10/21/2020 --8.31 --85.77
10/18/2021 --11.02 --83.06
8/5/2013 5.50 6.08 0.58 95.14*
3/4/2015 --3.95 --96.83
6/2/2016 4.11 4.13 0.02 96.67*
12/22/2016 4.82 4.86 0.04 95.95*
6/14/2017
3/22/2018 --7.96 --92.82
9/5/2018 --4.13 --96.65
3/5/2019 --3.85 --96.93
9/4/2019 8.62 11.62 3.00 94.44*
3/17/2020 --4.40 --96.38
10/21/2020 --4.24 --96.54
10/18/2021 6.58 8.16 1.58 93.82*
Notes:
1. TOC = Top of well casing.
2. * denotes groundwater elevation corrected for presence of free product calculated by:
[(TOC Elevation-Depth to Groundwater)+(0.76*Product thickness)]
Well Dry
MW-1 100.00
MW-2
100.78
94.08
MW-3
Well Not Measured
Well Not Measured
TABLE 1
GROUNDWATER ELEVATIONS AND HISTORICAL DATA
CIRCLE K STORE #2723471
4940 U.S. HIGHWAY 264 WEST
WILSON, NORTH CAROLINA
NCDEQ INCIDENT NO. 33892
WELL
I.D. Date
TOC
Elevation
(ft)
Depth to
LNAPL
(ft)
Depth to
Groundwater
(ft)
Product
Thickness
(ft)
Groundwater
Elevations (ft)
MW-1 100.00
8/5/2013 --8.10 --94.89
3/4/2015 --6.39 --96.60
6/2/2016 --7.22 --95.77
12/22/2016
6/14/2017
3/22/2018
9/5/2018
3/5/2019
9/4/2019
3/17/2020
10/21/2020
10/18/2021
8/5/2013 --9.41 --92.86
3/4/2015 --7.05 --95.22
6/2/2016 --8.62 --93.65
12/22/2016 --9.97 --92.30
6/14/2017 --8.22 --94.05
3/22/2018 --7.43 --94.84
9/5/2018 --9.00 --93.27
3/5/2019 --5.92 --96.35
9/4/2019 --12.14 --90.13
3/17/2020 --7.85 --94.42
10/21/2020 --8.04 --94.23
10/18/2021 --11.55 --90.72
3/4/2015 --7.36 --90.41
6/2/2016 --8.53 --93.43
12/22/2016 --9.94 --92.02
6/14/2017 --8.50 --93.46
3/22/2018 --8.30 --93.66
9/5/2018 --9.41 --92.55
3/5/2019 --7.25 --94.71
9/4/2019 --11.45 --90.51
3/17/2020 --8.54 --93.42
10/21/2020 --8.80 --93.16
10/18/2021 --11.05 --90.91
Notes:
1. TOC = Top of well casing.
2. * denotes groundwater elevation corrected for presence of free product calculated by:
[(TOC Elevation-Depth to Groundwater)+(0.76*Product thickness)]
Well Not Measured
Well Not Measured
Well Not Measured
101.96MW-6
MW-5
102.99 Well Not Measured
Well Not MeasuredMW-4
Well Not Measured
Well Not Measured
102.27
Well Not Measured
Well Not Measured
TABLE 1
GROUNDWATER ELEVATIONS AND HISTORICAL DATA
CIRCLE K STORE #2723471
4940 U.S. HIGHWAY 264 WEST
WILSON, NORTH CAROLINA
NCDEQ INCIDENT NO. 33892
WELL
I.D. Date
TOC
Elevation
(ft)
Depth to
LNAPL
(ft)
Depth to
Groundwater
(ft)
Product
Thickness
(ft)
Groundwater
Elevations (ft)
MW-1 100.00
3/4/2015 --8.28 --91.89
6/2/2016 --8.83 --91.34
12/22/2016
6/14/2017
3/22/2018
9/5/2018
3/5/2019
9/4/2019
3/17/2020
10/21/2020
10/18/2021
3/4/2015 --4.10 --81.72
6/2/2016 --5.90 --79.92
12/22/2016
6/14/2017
3/22/2018
9/5/2018
3/5/2019
9/4/2019
3/17/2020
10/21/2020
10/18/2021
3/4/2015 --9.21 --84.29
6/2/2016 --11.59 --81.91
12/22/2016
6/14/2017
3/22/2018
9/5/2018
3/5/2019
9/4/2019
3/17/2020
10/21/2020
10/18/2021
Notes:
1. TOC = Top of well casing.
2. * denotes groundwater elevation corrected for presence of free product calculated by:
[(TOC Elevation-Depth to Groundwater)+(0.76*Product thickness)]
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
93.50
85.82
100.17
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
MW-9
Well Not Measured
Well Not Measured
MW-8
MW-7
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
TABLE 1
GROUNDWATER ELEVATIONS AND HISTORICAL DATA
CIRCLE K STORE #2723471
4940 U.S. HIGHWAY 264 WEST
WILSON, NORTH CAROLINA
NCDEQ INCIDENT NO. 33892
WELL
I.D. Date
TOC
Elevation
(ft)
Depth to
LNAPL
(ft)
Depth to
Groundwater
(ft)
Product
Thickness
(ft)
Groundwater
Elevations (ft)
MW-1 100.00
3/4/2015 --7.52 --87.80
6/2/2016 --9.14 --86.18
12/22/2016
6/14/2017
3/22/2018
9/5/2018
3/5/2019
9/4/2019
3/17/2020
10/21/2020
10/18/2021
3/4/2015 --7.12 --94.12
6/2/2016 --9.24 --92.00
12/22/2016 --10.77 --90.47
6/14/2017 --8.15 --93.09
3/22/2018 --9.34 --91.90
9/5/2018 --9.89 --91.35
3/5/2019 --8.20 --93.04
9/4/2019 --13.09 --88.15
3/17/2020 --9.28 --91.96
10/21/2020 --9.62 --91.62
10/18/2021 --10.52 --90.72
11/24/15 --8.46 --92.44
1/26/2016 --7.22 --93.68
6/2/2016 --8.30 --92.60
12/22/2016
6/14/2017 --8.31 --92.59
3/22/2018
9/5/2018
3/5/2019
9/4/2019 --13.21 --87.69
3/17/2020
10/21/2020
10/18/2021
Notes:
1. TOC = Top of well casing.
2. * denotes groundwater elevation corrected for presence of free product calculated by:
[(TOC Elevation-Depth to Groundwater)+(0.76*Product thickness)]
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
100.90
101.24
95.32
DW-1
DW-2
MW-10
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
Well Not Measured
TABLE 2
SELECT NATURAL ATTENUATION MEASUREMENTS
CIRCLE K STORE #2723471
4940 U.S. HIGHWAY 264 WEST
WILSON, NORTH CAROLINA
NCDEQ INCIDENT NO. 33892
Monitoring
Well ID Date pH
(unitless)
Dissolved
Oxygen
(mg/L)
Specific
Conductivity
(µs/cm2)
Temperature
(Celcius)ORP (Eh)
9/5/2018
3/5/2019
9/4/2019 6.28 0.42 426.7 30.9 -145.0
3/17/2020 6.74 0.71 525 19.50 -83.1
10/21/2020 7.63 1.11 505 28.1 -66.9
10/18/2021 6.85 0.59 463 25.49 8.8
9/5/2018 4.60 0.59 110.4 26.1 164.3
3/5/2019 5.48 1.17 155.6 17.0 -5.4
9/4/2019
3/17/2020 5.36 0.17 256 20.30 0.7
10/21/2020 4.15 0.78 164.6 26.7 104.4
10/18/2021 7.36 2.90 138 21.65 118.9
9/5/2018
3/5/2019
9/4/2019
3/17/2020
10/21/2020
10/18/2021
9/5/2018 4.32 2.17 279.6 26.4 535.9
3/5/2019 4.83 4.37 162.2 16.0 247.6
9/4/2019 4.15 1.53 285.8 28.0 -89.4
3/17/2020 4.64 2.66 192 20.23 185.9
10/21/2020 3.89 0.97 279.8 28.0 209.3
10/18/2021 6.01 1.38 265 24.35 156.7
9/5/2018 4.62 1.20 380.9 27.1 122.6
3/5/2019 4.92 2.99 371.2 17.3 141.7
9/4/2019 4.12 1.16 293.0 29.6 -123.4
3/17/2020 5.15 1.30 373 21.01 126.3
10/21/2020 4.15 1.52 375.6 27.4 136.2
10/18/2021 6.34 0.80 305 23.48 187.0
9/5/2018 6.43 1.2 588.0 26.9 -104.1
3/5/2019 7.02 1.33 646.0 18.7 -118.2
9/4/2019 6.15 0.92 558.0 30.0 -160.1
3/17/2020 6.86 0.16 658 21.39 -70.4
10/21/2020 6.03 1.39 629 27.0 -66.3
10/18/2021 6.51 1.38 724 23.86 48.3
No measurement - strong odor
Well Dry
No measurement - strong odor
No measurement - LNAPL present
No measurement - strong odor
DW-1
MW-6
No measurement - sheen on water
No measurement - sheen on water
MW-1
MW-2
MW-3
MW-5
No measurement - LNAPL present
No measurement - strong odor
TABLE 3
CURRENT GROUNDWATER ANALYTICAL RESULTS
CIRCLE K STORE #2723471
4940 U.S. HIGHWAY 264 WEST
WILSON, NORTH CAROLINA
NCDEQ INCIDENT NO. 33892
BenzeneTolueneEthylbenzeneTotal XylenesTotal BTEXMTBENaphthaleneIsopropylbenzenen-Butylbenzenesec-Butylbenzenetert-Butylbenzenen-PropylbenzeneMW-1 10/18/21 11.9 0.44J 2.8 1.7 16.84 0.67 26.5 3.7 9.7 5.4 <0.50 8.5
MW-2 10/18/21 <0.50 <0.50 <0.50 <0.50 <2.00 <0.50 <0.50 0.61 0.13J 0.8 <0.50 <0.50
MW-3 10/18/21
MW-5 10/18/21 <0.50 <0.50 <0.50 <0.50 <2.00 14.8 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
MW-6 10/18/21 <0.50 <0.50 <0.50 <0.50 <2.00 <0.50 <0.50 <0.50 <0.50 0.78 <0.50 <0.50
DW-1 10/18/21 2.7 <0.50 <0.50 <0.50 2.7 71.8 <0.50 0.48J <0.50 2.5 0.28J <0.50
1 600 600 500 NE 20 6 70 70 70 70 70
11.9 3.6 250 4,500 NE 190 120 27 4,200 NE NE 17,000
5,000 260,000 80,000 50,000 NE 20,000 6,000 30,500 5,900 8,800 14,750 26,100
Notes:
1. "<" denotes compound not detected above laboratory method detection limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion.
3. Concentrations in bold print equal or exceed the 2B Surface Water Standard x 10 (based on Human Health Standards).
4. NCDEQ = North Carolina Department of Environmental Quality.
5. GCL = Gross Contaminantion Level.
6. MTBE = Methyl Tertiary Butyl Ether.
7. Gross Contamination Levels for Groundwater are referenced in the
"Guidelines for Assessment and Corrective Action for UST Releases", November 2008, updated January 2010.
8. NE denotes not established.
9. J denotes concentration estimated by project laboratory.
Well Sampling
Date
EPA Method 6200B
2L Standard
2B Standard (x10)
GCLs
1.58 feet LNAPL

FIGURES

FIGURE 1
USGS TOPOGRAPHIC MAP
Pantry # 3471
4940 US Highway 264 West Wilson, North Carolina
2725 E. Millbrook Road, Suite 121 Raleigh, NC 27604
[phone]
PROJECT NO: 45.24639.3471
SCALE: 1” = 600’ DATE: 7/7/2009
SITE

ATTACHMENT I

10/26/21
Technical Report for
Atlas
Circle K #2723471-Wilson, NC
Circk347115
SGS Job Number: LA74583
Sampling Date: 10/18/21
Report to:
ATC Group Services LLC.
2725 East Millbrook Road Suite 121
Raleigh, NC 27604
[e-mail]
ATTN: Maureen Jackson
Total number of pages in report:
Certifications: LDEQ(2048), LDHH(LA150012), AR(14-045-04), AZ(AZ0805), FL(E87657), IL(200082), KY(#31),
NC(487), SC(73004001), NJ(LA007), TX(T104704186-18-16), WV(257)
This report shall not be reproduced, except in its entirety, without the written approval of SGS.
Test results relate only to samples analyzed.
SGS North America Inc. • 500 Ambassador Caffery • Scott, LA 70583 • tel: [phone]
Test results contained within this data package meet the requirements
of the National Environmental Laboratory Accreditation Program
and/or state specific certification programs as applicable.
Client Service contact: Amy Jackson 337-237-4775
Ron Benjamin
Lab Director
Scott, LA 10/26/21
e-Hardcopy 2.0
Automated Report
34
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 34
LA74583
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................5
3.1: LA74583-1: MW-1 .......................................................................................................6
3.2: LA74583-2: MW-2 .......................................................................................................9
3.3: LA74583-3: MW-5 .......................................................................................................12
3.4: LA74583-4: MW-6 .......................................................................................................15
3.5: LA74583-5: DW-1 ........................................................................................................18
Section 4: Misc. Forms ............................................................................................................21
4.1: Chain of Custody ...........................................................................................................22
Section 5: MS Volatiles - QC Data Summaries .....................................................................25
5.1: Method Blank Summary ................................................................................................26
5.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................29
5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................32 123452 of 34
LA74583
SGS North America Inc.
Sample Summary
Atlas
Job No:LA74583
Circle K #2723471-Wilson, NC
Project No: Circk347115
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
LA74583-1 10/18/21 14:15 FB 10/20/21 AQ Ground Water MW-1
LA74583-2 10/18/21 11:45 FB 10/20/21 AQ Ground Water MW-2
LA74583-3 10/18/21 12:25 FB 10/20/21 AQ Ground Water MW-5
LA74583-4 10/18/21 13:00 FB 10/20/21 AQ Ground Water MW-6
LA74583-5 10/18/21 13:45 FB 10/20/21 AQ Ground Water DW-1
3 of 34
LA745831
Summary of Hits Page 1 of 1
Job Number:LA74583
Account:Atlas
Project:Circle K #2723471-Wilson, NC
Collected:10/18/21
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA74583-1 MW-1
Benzene 11.9 0.50 0.27 ug/l SM 6200B
n-Butylbenzene 9.7 0.50 0.092 ug/l SM 6200B
sec-Butylbenzene 5.4 0.50 0.14 ug/l SM 6200B
Ethylbenzene 2.8 0.50 0.20 ug/l SM 6200B
Isopropylbenzene 3.7 0.50 0.13 ug/l SM 6200B
Methyl Tert Butyl Ether 0.67 0.50 0.068 ug/l SM 6200B
Naphthalene 26.5 0.50 0.10 ug/l SM 6200B
n-Propylbenzene 8.5 0.50 0.22 ug/l SM 6200B
Toluene 0.44 J 0.50 0.29 ug/l SM 6200B
o-Xylene 1.7 0.50 0.15 ug/l SM 6200B
Xylene (total)1.7 0.50 0.16 ug/l SM 6200B
LA74583-2 MW-2
n-Butylbenzene 0.13 J 0.50 0.092 ug/l SM 6200B
sec-Butylbenzene 0.78 0.50 0.14 ug/l SM 6200B
Isopropylbenzene 0.61 0.50 0.13 ug/l SM 6200B
LA74583-3 MW-5
Methyl Tert Butyl Ether 14.8 0.50 0.068 ug/l SM 6200B
LA74583-4 MW-6
sec-Butylbenzene 0.78 0.50 0.14 ug/l SM 6200B
LA74583-5 DW-1
Benzene 2.7 0.50 0.27 ug/l SM 6200B
sec-Butylbenzene 2.5 0.50 0.14 ug/l SM 6200B
tert-Butylbenzene 0.28 J 0.50 0.16 ug/l SM 6200B
Isopropylbenzene 0.48 J 0.50 0.13 ug/l SM 6200B
Methyl Tert Butyl Ether 71.8 0.50 0.068 ug/l SM 6200B
4 of 34
LA745832
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
5 of 34
LA745833
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-1
Lab Sample ID:LA74583-1 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0139008.D 1 10/25/21 13:34 NN n/a n/a V2K2971
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene 11.9 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene 9.7 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene 5.4 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
6 of 34
LA7458333.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-1
Lab Sample ID:LA74583-1 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene 2.8 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene 3.7 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether 0.67 0.50 0.068 ug/l
91-20-3 Naphthalene 26.5 0.50 0.10 ug/l
103-65-1 n-Propylbenzene 8.5 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 0.44 0.50 0.29 ug/l J
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene 1.7 0.50 0.15 ug/l
1330-20-7 Xylene (total)1.7 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 94%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
7 of 34
LA7458333.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-1
Lab Sample ID:LA74583-1 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 100%70-130%
460-00-4 4-Bromofluorobenzene 108%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
8 of 34
LA7458333.1
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-2
Lab Sample ID:LA74583-2 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0139009.D 1 10/25/21 18:05 NN n/a n/a V2K2971
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene 0.13 0.50 0.092 ug/l J
135-98-8 sec-Butylbenzene 0.78 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
9 of 34
LA7458333.2
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-2
Lab Sample ID:LA74583-2 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene 0.61 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 89%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
10 of 34
LA7458333.2
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-2
Lab Sample ID:LA74583-2 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 99%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
11 of 34
LA7458333.2
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-5
Lab Sample ID:LA74583-3 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0139010.D 1 10/25/21 18:35 NN n/a n/a V2K2971
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
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 34
LA7458333.3
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-5
Lab Sample ID:LA74583-3 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether 14.8 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 94%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
13 of 34
LA7458333.3
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-5
Lab Sample ID:LA74583-3 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 98%70-130%
460-00-4 4-Bromofluorobenzene 99%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
14 of 34
LA7458333.3
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-6
Lab Sample ID:LA74583-4 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0139011.D 1 10/25/21 19:05 NN n/a n/a V2K2971
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene 0.78 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
15 of 34
LA7458333.4
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-6
Lab Sample ID:LA74583-4 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 92%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
16 of 34
LA7458333.4
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-6
Lab Sample ID:LA74583-4 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 98%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
17 of 34
LA7458333.4
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:DW-1
Lab Sample ID:LA74583-5 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0139007.D 1 10/25/21 13:03 NN n/a n/a V2K2971
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene 2.7 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene 2.5 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene 0.28 0.50 0.16 ug/l J
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
18 of 34
LA7458333.5
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:DW-1
Lab Sample ID:LA74583-5 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene 0.48 0.50 0.13 ug/l J
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether 71.8 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 92%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
19 of 34
LA7458333.5
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:DW-1
Lab Sample ID:LA74583-5 Date Sampled:10/18/21
Matrix:AQ - Ground Water Date Received:10/20/21
Method:SM 6200B Percent Solids:n/a
Project:Circle K #2723471-Wilson, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 98%70-130%
460-00-4 4-Bromofluorobenzene 101%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
20 of 34
LA7458333.5
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 4
21 of 34
LA745834
LA74583: Chain of Custody
Page 1 of 3
22 of 34
LA7458344.1
Job Number:LA74583 Client:ATC
Date / Time Received:10/20/2021 9:30:00 AM Delivery Method:FedEx
Project:CIRCLE K STORE 2723471
4. No. Coolers:1
Airbill #'s:4913 8693 5226
Cooler Security
1. Custody Seals Present:
Y or N
2. Custody Seals Intact:
3. COC Present:
4. Smpl Dates/Time OK
2. Cooler temp verification:
Cooler Temperature Y or N
1. Temp criteria achieved:
3. Cooler media:
IR Gun
Ice (direct contact)
Quality Control Preservation Y or N N/A
1. Trip Blank present / cooler:
2. Trip Blank listed on COC:
3. Samples preserved properly:
4. VOCs headspace free:
Sample Integrity - Documentation Y or N
1. Sample labels present on bottles:
2. Container labeling complete:
3. Sample container label / COC agree:
Sample Integrity - Condition Y or N
1. Sample recvd within HT:
3. Condition of sample:
2. All containers accounted for:
Sample Integrity - Instructions
1. Analysis requested is clear:
2. Bottles received for unspecified tests
3. Sufficient volume recvd for analysis:
4. Compositing instructions clear:
5. Filtering instructions clear:
Intact
Y or N
Comments 1
Y or N N/A
Cooler Temps:#1: (3.1/3.1); DV462
SGS Sample Receipt Summary
Amy Jackson 10/25/2021Responded to by:Response Date:
LA74583: Chain of Custody
Page 2 of 3
23 of 34
LA7458344.1
LA74583: Chain of Custody
Page 3 of 3
24 of 34
LA7458344.1
SGS North America Inc.
MS Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and Duplicate Summaries
Scott, LA
Section 5
25 of 34
LA745835
Method Blank Summary Page 1 of 3
Job Number:LA74583
Account:ATCNCR Atlas
Project:Circle K #2723471-Wilson, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2971-MB1 2K0139006.D 1 10/25/21 NN n/a n/a V2K2971
The QC reported here applies to the following samples:Method: SM 6200B
LA74583-1, LA74583-2, LA74583-3, LA74583-4, LA74583-5
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
26 of 34
LA7458355.1.1
Method Blank Summary Page 2 of 3
Job Number:LA74583
Account:ATCNCR Atlas
Project:Circle K #2723471-Wilson, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2971-MB1 2K0139006.D 1 10/25/21 NN n/a n/a V2K2971
The QC reported here applies to the following samples:Method: SM 6200B
LA74583-1, LA74583-2, LA74583-3, LA74583-4, LA74583-5
CAS No.Compound Result RL MDL Units Q
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride 0.55 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
27 of 34
LA7458355.1.1
Method Blank Summary Page 3 of 3
Job Number:LA74583
Account:ATCNCR Atlas
Project:Circle K #2723471-Wilson, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2971-MB1 2K0139006.D 1 10/25/21 NN n/a n/a V2K2971
The QC reported here applies to the following samples:Method: SM 6200B
LA74583-1, LA74583-2, LA74583-3, LA74583-4, LA74583-5
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 95%70-130%
2037-26-5 Toluene-D8 100%70-130%
460-00-4 4-Bromofluorobenzene 96%70-130%
28 of 34
LA7458355.1.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA74583
Account:ATCNCR Atlas
Project:Circle K #2723471-Wilson, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2971-BS1 2K0138908.D 1 10/25/21 NN n/a n/a V2K2971
V2K2971-BSD1 2K0138909.D 1 10/25/21 NN n/a n/a V2K2971
The QC reported here applies to the following samples:Method: SM 6200B
LA74583-1, LA74583-2, LA74583-3, LA74583-4, LA74583-5
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 45.7 91 44.5 89 3 70-130/30
71-43-2 Benzene 20 19.4 97 19.5 98 1 70-130/30
108-86-1 Bromobenzene 20 20.3 102 20.0 100 1 70-130/30
74-97-5 Bromochloromethane 20 18.3 92 18.0 90 2 70-130/30
75-27-4 Bromodichloromethane 20 19.2 96 19.2 96 0 70-130/30
75-25-2 Bromoform 20 19.2 96 18.3 92 5 70-130/30
104-51-8 n-Butylbenzene 20 21.6 108 21.9 110 1 70-130/30
135-98-8 sec-Butylbenzene 20 20.6 103 20.9 105 1 70-130/30
98-06-6 tert-Butylbenzene 20 20.2 101 20.5 103 1 70-130/30
56-23-5 Carbon Tetrachloride 20 17.7 89 17.5 88 1 70-130/30
108-90-7 Chlorobenzene 20 19.8 99 19.8 99 0 70-130/30
75-00-3 Chloroethane 20 15.5 78 15.0 75 3 60-140/30
67-66-3 Chloroform 20 17.4 87 16.9 85 3 70-130/30
95-49-8 o-Chlorotoluene 20 19.7 99 20.2 101 3 70-130/30
106-43-4 p-Chlorotoluene 20 20.5 103 20.4 102 0 70-130/30
124-48-1 Dibromochloromethane 20 19.8 99 19.0 95 4 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 18.9 95 19.2 96 2 70-130/30
106-93-4 1,2-Dibromoethane 20 21.0 105 20.3 102 3 70-130/30
75-71-8 Dichlorodifluoromethane 20 13.8 69 13.7 69 1 60-140/30
541-73-1 m-Dichlorobenzene 20 19.4 97 19.5 98 1 70-130/30
95-50-1 o-Dichlorobenzene 20 19.4 97 19.7 99 2 70-130/30
106-46-7 p-Dichlorobenzene 20 19.2 96 19.2 96 0 70-130/30
75-34-3 1,1-Dichloroethane 20 18.3 92 18.1 91 1 70-130/30
107-06-2 1,2-Dichloroethane 20 19.7 99 19.3 97 2 70-130/30
75-35-4 1,1-Dichloroethylene 20 17.0 85 16.9 85 1 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 18.1 91 18.3 92 1 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 15.6 78 15.8 79 1 70-130/30
78-87-5 1,2-Dichloropropane 20 20.0 100 19.6 98 2 70-130/30
142-28-9 1,3-Dichloropropane 20 20.6 103 19.9 100 3 70-130/30
594-20-7 2,2-Dichloropropane 20 22.2 111 21.5 108 3 70-130/30
563-58-6 1,1-Dichloropropene 20 18.9 95 18.3 92 3 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 19.6 98 19.3 97 2 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 19.6 98 19.3 97 2 70-130/30
108-20-3 Di-Isopropyl Ether 20 19.0 95 18.8 94 1 70-130/30
64-17-5 Ethyl Alcohol 400 352 88 483 121 31* a 70-130/30
100-41-4 Ethylbenzene 20 20.9 105 21.0 105 0 70-130/30
* = Outside of Control Limits.
29 of 34
LA7458355.2.1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA74583
Account:ATCNCR Atlas
Project:Circle K #2723471-Wilson, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2971-BS1 2K0138908.D 1 10/25/21 NN n/a n/a V2K2971
V2K2971-BSD1 2K0138909.D 1 10/25/21 NN n/a n/a V2K2971
The QC reported here applies to the following samples:Method: SM 6200B
LA74583-1, LA74583-2, LA74583-3, LA74583-4, LA74583-5
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
591-78-6 2-Hexanone 50 48.5 97 47.4 95 2 70-130/30
87-68-3 Hexachlorobutadiene 20 20.0 100 20.1 101 0 70-130/30
98-82-8 Isopropylbenzene 20 21.9 110 21.7 109 1 70-130/30
99-87-6 p-Isopropyltoluene 20 21.5 108 21.8 109 1 70-130/30
74-83-9 Methyl Bromide 20 14.4 72 15.3 77 6 60-140/30
74-87-3 Methyl Chloride 20 15.8 79 15.3 77 3 60-140/30
74-95-3 Methylene Bromide 20 20.0 100 19.5 98 3 70-130/30
75-09-2 Methylene Chloride 20 15.7 79 15.8 79 1 70-130/30
78-93-3 Methyl Ethyl Ketone 50 43.9 88 42.3 85 4 70-130/30
108-10-1 4-Methyl-2-pentanone 50 49.4 99 48.1 96 3 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 16.9 85 18.8 94 11 70-130/30
91-20-3 Naphthalene 20 19.1 96 18.9 95 1 70-130/30
103-65-1 n-Propylbenzene 20 20.2 101 20.3 102 0 70-130/30
100-42-5 Styrene 20 19.4 97 19.1 96 2 70-130/30
630-20-6 1,1,1,2-Tetrachloroethane 20 22.4 112 22.2 111 1 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 19.6 98 19.3 97 2 70-130/30
127-18-4 Tetrachloroethylene 20 19.7 99 19.6 98 1 70-130/30
108-88-3 Toluene 20 19.6 98 19.6 98 0 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 20.8 104 20.6 103 1 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 20.9 105 20.9 105 0 70-130/30
71-55-6 1,1,1-Trichloroethane 20 19.5 98 19.1 96 2 70-130/30
79-00-5 1,1,2-Trichloroethane 20 20.5 103 20.1 101 2 70-130/30
79-01-6 Trichloroethylene 20 19.7 99 19.6 98 1 70-130/30
75-69-4 Trichlorofluoromethane 20 17.8 89 17.4 87 2 60-140/30
96-18-4 1,2,3-Trichloropropane 20 20.5 103 19.4 97 6 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 20.9 105 21.2 106 1 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 21.1 106 21.3 107 1 70-130/30
108-05-4 Vinyl Acetate 20 20.7 104 19.8 99 4 70-130/30
75-01-4 Vinyl Chloride 20 17.1 86 17.0 85 1 60-140/30
m,p-Xylene 40 44.9 112 44.4 111 1 70-130/30
95-47-6 o-Xylene 20 20.4 102 20.3 102 0 70-130/30
1330-20-7 Xylene (total)60 65.3 109 64.7 108 1 70-130/30
* = Outside of Control Limits.
30 of 34
LA7458355.2.1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA74583
Account:ATCNCR Atlas
Project:Circle K #2723471-Wilson, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K2971-BS1 2K0138908.D 1 10/25/21 NN n/a n/a V2K2971
V2K2971-BSD1 2K0138909.D 1 10/25/21 NN n/a n/a V2K2971
The QC reported here applies to the following samples:Method: SM 6200B
LA74583-1, LA74583-2, LA74583-3, LA74583-4, LA74583-5
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 90%85%70-130%
2037-26-5 Toluene-D8 100%101%70-130%
460-00-4 4-Bromofluorobenzene 105%103%70-130%
(a) RPD exceeded criteria. However, both recoveries passed criteria and the samples were ND.
* = Outside of Control Limits.
31 of 34
LA7458355.2.1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA74583
Account:ATCNCR Atlas
Project:Circle K #2723471-Wilson, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA74583-1MS 2K0139012.D 5 10/25/21 NN n/a n/a V2K2971
LA74583-1MSD 2K0139013.D 5 10/25/21 NN n/a n/a V2K2971
LA74583-1 2K0139008.D 1 10/25/21 NN n/a n/a V2K2971
The QC reported here applies to the following samples:Method: SM 6200B
LA74583-1, LA74583-2, LA74583-3, LA74583-4, LA74583-5
LA74583-1 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
67-64-1 Acetone ND 250 96.5 39* a 250 110 44* a 13 70-130/20
71-43-2 Benzene 11.9 100 111 99 100 112 100 1 70-130/20
108-86-1 Bromobenzene ND 100 101 101 100 102 102 1 70-130/20
74-97-5 Bromochloromethane ND 100 93.1 93 100 98.0 98 5 70-130/20
75-27-4 Bromodichloromethane ND 100 94.8 95 100 98.1 98 3 70-130/20
75-25-2 Bromoform ND 100 92.4 92 100 92.4 92 0 70-130/20
104-51-8 n-Butylbenzene 9.7 100 113 103 100 114 104 1 70-130/20
135-98-8 sec-Butylbenzene 5.4 100 106 101 100 107 102 1 70-130/20
98-06-6 tert-Butylbenzene ND 100 99.3 99 100 101 101 2 70-130/20
56-23-5 Carbon Tetrachloride ND 100 95.0 95 100 99.1 99 4 70-130/20
108-90-7 Chlorobenzene ND 100 99.3 99 100 100 100 1 70-130/20
75-00-3 Chloroethane ND 100 82.2 82 100 83.5 84 2 60-140/20
67-66-3 Chloroform ND 100 92.2 92 100 92.6 93 0 70-130/20
95-49-8 o-Chlorotoluene ND 100 99.4 99 100 102 102 3 70-130/20
106-43-4 p-Chlorotoluene ND 100 99.4 99 100 103 103 4 70-130/20
124-48-1 Dibromochloromethane ND 100 94.2 94 100 96.5 97 2 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 100 92.5 93 100 96.7 97 4 70-130/20
106-93-4 1,2-Dibromoethane ND 100 105 105 100 106 106 1 70-130/20
75-71-8 Dichlorodifluoromethane ND 100 75.6 76 100 75.8 76 0 60-140/20
541-73-1 m-Dichlorobenzene ND 100 95.1 95 100 97.9 98 3 70-130/20
95-50-1 o-Dichlorobenzene ND 100 96.4 96 100 98.5 99 2 70-130/20
106-46-7 p-Dichlorobenzene ND 100 94.7 95 100 97.3 97 3 70-130/20
75-34-3 1,1-Dichloroethane ND 100 98.6 99 100 99.8 100 1 70-130/20
107-06-2 1,2-Dichloroethane ND 100 97.0 97 100 100 100 3 70-130/20
75-35-4 1,1-Dichloroethylene ND 100 94.0 94 100 94.9 95 1 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 100 98.0 98 100 101 101 3 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 100 94.1 94 100 86.1 86 9 70-130/20
78-87-5 1,2-Dichloropropane ND 100 103 103 100 106 106 3 70-130/20
142-28-9 1,3-Dichloropropane ND 100 99.9 100 100 103 103 3 70-130/20
594-20-7 2,2-Dichloropropane ND 100 108 108 100 112 112 4 70-130/20
563-58-6 1,1-Dichloropropene ND 100 102 102 100 103 103 1 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 100 95.6 96 100 97.9 98 2 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 100 93.6 94 100 94.4 94 1 70-130/20
108-20-3 Di-Isopropyl Ether ND 100 99.7 100 100 103 103 3 70-130/20
64-17-5 Ethyl Alcohol ND 2000 1430 72 2000 2030 102 35* a 70-130/20
100-41-4 Ethylbenzene 2.8 100 109 106 100 109 106 0 70-130/20
* = Outside of Control Limits.
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LA7458355.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA74583
Account:ATCNCR Atlas
Project:Circle K #2723471-Wilson, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA74583-1MS 2K0139012.D 5 10/25/21 NN n/a n/a V2K2971
LA74583-1MSD 2K0139013.D 5 10/25/21 NN n/a n/a V2K2971
LA74583-1 2K0139008.D 1 10/25/21 NN n/a n/a V2K2971
The QC reported here applies to the following samples:Method: SM 6200B
LA74583-1, LA74583-2, LA74583-3, LA74583-4, LA74583-5
LA74583-1 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
591-78-6 2-Hexanone ND 250 217 87 250 205 82 6 70-130/20
87-68-3 Hexachlorobutadiene ND 100 93.9 94 100 94.5 95 1 70-130/20
98-82-8 Isopropylbenzene 3.7 100 115 111 100 114 110 1 70-130/20
99-87-6 p-Isopropyltoluene ND 100 104 104 100 106 106 2 70-130/20
74-83-9 Methyl Bromide ND 100 28.2 28* a 100 42.2 42* a 40* a 60-140/20
74-87-3 Methyl Chloride ND 100 75.1 75 100 77.8 78 4 60-140/20
74-95-3 Methylene Bromide ND 100 97.6 98 100 102 102 4 70-130/20
75-09-2 Methylene Chloride ND 100 85.2 85 100 86.8 87 2 70-130/20
78-93-3 Methyl Ethyl Ketone ND 250 182 73 250 178 71 2 70-130/20
108-10-1 4-Methyl-2-pentanone ND 250 240 96 250 255 102 6 70-130/20
1634-04-4 Methyl Tert Butyl Ether 0.67 100 101 100 100 103 102 2 70-130/20
91-20-3 Naphthalene 26.5 100 117 91 100 125 99 7 70-130/20
103-65-1 n-Propylbenzene 8.5 100 107 99 100 109 101 2 70-130/20
100-42-5 Styrene ND 100 95.0 95 100 96.2 96 1 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 100 112 112 100 114 114 2 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 100 99.0 99 100 105 105 6 70-130/20
127-18-4 Tetrachloroethylene ND 100 102 102 100 100 100 2 70-130/20
108-88-3 Toluene 0.44 J 100 99.9 99 100 99.5 99 0 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 100 98.7 99 100 103 103 4 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 100 99.6 100 100 102 102 2 70-130/20
71-55-6 1,1,1-Trichloroethane ND 100 106 106 100 108 108 2 70-130/20
79-00-5 1,1,2-Trichloroethane ND 100 108 108 100 109 109 1 70-130/20
79-01-6 Trichloroethylene ND 100 101 101 100 101 101 0 70-130/20
75-69-4 Trichlorofluoromethane ND 100 95.1 95 100 96.2 96 1 60-140/20
96-18-4 1,2,3-Trichloropropane ND 100 101 101 100 97.1 97 4 70-130/20
95-63-6 1,2,4-Trimethylbenzene ND 100 102 102 100 104 104 2 70-130/20
108-67-8 1,3,5-Trimethylbenzene ND 100 102 102 100 104 104 2 70-130/20
108-05-4 Vinyl Acetate ND 100 107 107 100 112 112 5 70-130/20
75-01-4 Vinyl Chloride ND 100 91.7 92 100 92.6 93 1 60-140/20
m,p-Xylene ND 200 223 112 200 224 112 0 70-130/20
95-47-6 o-Xylene 1.7 100 105 103 100 106 104 1 70-130/20
1330-20-7 Xylene (total)1.7 300 328 109 300 330 109 1 70-130/20
* = Outside of Control Limits.
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LA7458355.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA74583
Account:ATCNCR Atlas
Project:Circle K #2723471-Wilson, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA74583-1MS 2K0139012.D 5 10/25/21 NN n/a n/a V2K2971
LA74583-1MSD 2K0139013.D 5 10/25/21 NN n/a n/a V2K2971
LA74583-1 2K0139008.D 1 10/25/21 NN n/a n/a V2K2971
The QC reported here applies to the following samples:Method: SM 6200B
LA74583-1, LA74583-2, LA74583-3, LA74583-4, LA74583-5
CAS No.Surrogate Recoveries MS MSD LA74583-1 Limits
17060-07-0 1,2-Dichloroethane-D4 92%95%94%70-130%
2037-26-5 Toluene-D8 100%102%100%70-130%
460-00-4 4-Bromofluorobenzene 104%105%108%70-130%
(a) Outside control limits due to matrix interference. Blank Spike meets acceptance criteria.
* = Outside of Control Limits.
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LA7458355.3.1