WS-28018_47300_CA_SCH_20200429_SitecheckReport

609A Piner Road., Suite 115
Wilmington, North Carolina 28409
Telephone [phone]
Fax [phone]
www.atcgs.com
April 29, 2020
Mr. Gene Mao
Guilford County Dept. of Health and Human Services
Environmental Health Division
400 W. Market Street, Suit 300
Greensboro, North Carolina 27401
Re: Site Check Report
Circle K Store #2704132
2810 Pinecroft Road
Greensboro, Guilford County, North Carolina
NCDEQ Facility ID #0-017603
Dear Mr. Mao:
ATC Associates of North Carolina, LLC (ATC), on behalf of Circle K Stores, Inc., is submitting this Site
Check Report for the referenced facility.
If you have any questions or require additional information, please contact our office at [phone].
Sincerely,
ATC Associates of North Carolina, LLC
Maureen Jackson, P.G.
Senior Project Manager
cc: Mr. Brent Puzak, Circle K Stores, Inc.
Ms. Carin Kromm, NCDEQ
Received: 5/7/2020
SITE CHECK REPORT

Circle K Store #2704132
2810 Pinecroft Road
Greensboro, Guilford County, North Carolina
NCDEQ Facility ID #0-017603

Circle K Store #2704132 April 29, 2020
NCDEQ Facility ID #0-017603 Site Check Report

B. Site History

1. Provide UST Owner and Operator Information

See Table 1.

2. Provide UST Information

See Table 2.

3. Provide Non-UST Information

No ASTs or surface spills are known to exist at the site.

4. Describe relation of location of current UST system to historical UST releases.

A previous release is noted to have occurred on the property at an unknown date and it was
issued UST incident #30338. This incident was closed on July 29, 2013. The file has been
archived by Guilford County and was not able to be reviewed at the time of this report.

5. Provide a Brief Description of Site Characteristics

The subject property consists of one convenience store building and petroleum fueling
equipment. The subject property and surrounding area is fairly level. The subject property is
located in an intermixed commercial and residential area of Greensboro. Public water is
supplied to the area as water meters were noted on the subject property and adjacent developed
properties. An unnamed surface water feature is located approximately 1,200 feet southeast of
the source area and another unnamed surface water feature is located approximately 1,085 north
of the source area. A topographic map and site map are attached as Figures 1 and 2,
respectively.

C. Site Check Procedures

1. UST System Testing

On January 24, 2020, during annual testing, the premium gasoline spill bucket (tank #2) was
found to not pass its respective hydrostatic test. Circle K is currently repairing the spill buckets
and information regarding the repairs is not available at the time of this report.

On April 22, 2020, upon receipt of the soil analytical results, ATC submitted a UST-61:
24-Hour Release and UST Leak Reporting Form to the Guilford County Department of Health
and Human Services office via e-mail correspondence.

Copies of the testing results and the referenced notification are provided in Attachment I. \

Circle K Store #2704132 April 29, 2020
NCDEQ Facility ID #0-017603 Site Check Report

2. Site Check Procedure

On April 13, 2020, ATC personnel contracted with Carolina Soil Investigations, LLC (CSI) to
advance one soil boring (labeled SB-1) near the premium gasoline (tank #2) spill bucket. Soil
boring SB-1 was advanced to thirteen (13) feet below ground surface (bgs). The soil sample
was then submitted for laboratory analyses. The location of the soil sample is provided on
Figure 2.

It should be noted the soil sample was collected as close as possible to the premium gasoline
(tank #2) spill bucket.

3. Soil Excavation Activities

Soil excavation was not performed as part of this site check.

D. Site Investigation

1. Field Screening

Soil sample SB-1 was screened with a photoionization detector (PID) following sample
collection. The respective PID reading is provided on Table 3.

2. Soil Sampling Information

Soil sample SB-1 was collected at approximately thirteen feet bgs on April 13, 2020. The soil
encountered at the sampling depth consisted of a red clayey silt. The boring log for SB-1 is
provided in Attachment II.

The soil sample was shipped to a N.C. certified laboratory in a chilled cooler following proper
chain-of-custody procedures. Soil sample SB-1 was requested to be analyzed by TPH-Gasoline
Range Organics (GRO) and Environmental Protection Agency (EPA) Method 8260B.

3. Groundwater and Surface Sampling Information

Surface water and groundwater samples were not collected during site check activities.

4. Quality Control Measures

The soil sample was placed in laboratory provided jars and vials. The sample was immediately
placed on ice and contained in a cooler during transportation. The sample was transported by
courier under a chain-of-custody to the laboratory for analyses.

5. Investigation Results

Laboratory analytical results of soil sample SB-1 detected a dibromochloromethane
concentration above its established Soil-to-Groundwater (STGW) Maximum Contaminant
Concentration (MSCC). Other target compound concentrations were detected above laboratory
Circle K Store #2704132 April 29, 2020
NCDEQ Facility ID #0-017603 Site Check Report

method detection limits but below established STGW-MSCCs. The results are provided in
Table 3. A copy of the laboratory report and chain-of-custody documents are provided in
Attachment III.

E. Conclusion and Recommendations

Laboratory analytical results of the soil sample collected near the premium gasoline (tank #2)
spill bucket detected a dibromochloromethane concentration above applicable standards. Based
on the soil analytical data, it appears a release of petroleum has occurred from the premium
gasoline (tank #2) spill bucket.

F. Figures
Figure 1 – Topographic Map
Figure 2 – Site Map

G. Tables
Table 1 – Site History - UST Owner and Operator Information
Table 2 – Site History – UST/AST System Information
Table 3 – Soil Analytical Results

H. Attachments
I – Notifications
II – Boring Log
III – Laboratory Report and Chain-of-Custody Documents

TABLES
TABLE 1
SITE HISTORY - UST OWNER AND OPERATOR INFORMATION
CIRCLE K STORE #2704132
2810 PINECROFT ROAD
GREENSBORO, GUILFORD COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID #0-017603
Revision Date:4/28/2020 Incident Number and Name:Circle K Store #2704132
UST ID Number All Facility ID Number 0-017603
City State Zip Telephone Number
Raleigh NC 27606 919-774-6700
City State Zip Telephone Number
Raleigh NC 27606 919-774-6700
Circle K Stores, Inc.4/1/1984 to Present
1100 Situs Court, Suite 100
Street Address
Dates of Operation (MM/DD/YY to MM/DD/YY)Name of Owner
Dates of Operation (MM/DD/YY to MM/DD/YY)Name of Operator
1100 Situs Court, Suite 100
Circle K Stores, Inc.4/1/1984 to Present
Street Address
TABLE 2
SITE HISTORY - UST/AST SYSTEM INFORMATION
CIRCLE K STORE #2704132
2810 PINECROFT ROAD
GREENSBORO, GUILFORD COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID #0-017603
Revision Date:4/28/2020
UST ID Number Current/Last Contents
Previous
Contents
Capacity
(gallons)
Construction
Details
Tank
Dimensions
Description of
Associated
Piping and
Pumps
Date Tank
Installed Status of UST
Was Release
Associates with
the UST System?
1 Gasoline (Reg)None 10,000 Steel Unknown SW Fiberglass 04/01/84 Active No
2 Gasoline (Prem)None 10,000 Steel Unknown SW Fiberglass 04/01/84 Active Yes
3 Gasoline (Mid)None 10,000 Steel Unknown SW Fiberglass 04/01/84 Active No
AST ID Number Current/Last Contents
Previous
Contents
Capacity
(gallons)
Construction
Details
Tank
Dimensions
Description of
Associated
Piping and
Pumps
Date Tank
Installed Status of AST
Was Release
Associates with
the AST System?
Incident Number and Name:Circle K Store #2704132
None associated with this site
TABLE 3
SOIL ANALYTICAL RESULTS
CIRCLE K STORE #2704132
2810 PINECROFT ROAD
GREENSBORO, GUILFORD COUNTY, NORTH CAROLINA
NCDEQ FACILITY ID #0-017603
EPA
Method
8015C
SB-1 13 14.6 4/13/2020 <7.9 0.0055 0.0149 0.0059 0.115 0.0081 0.0016 0.0018 0.0202 0.0064 0.008 0.0103
50 ----------------------
--0.0056 NE 0.026 0.37 0.0021 0.37 4.9 0.091 4.3 8.5 4.6
Notes:
1. Concentrations reported in milligrams per kilogram (mg/kg).
2. PID denotes photoionization detector.
3. PPM denotes parts per million.
4. Bold type denotes concentration equals or exceeds the Soil-to-Groundwater MSCC.
5. MSCC denotes maximum soil contaminant concentration.
Soil-to-Groundwater MSCCs
NCDEQ Action Level (mg/kg)
PID
Reading
(ppm)Total XylenesAnalytical Method
Sample Depth (feet)Date Sampled TPH - GROEPA Method 8260B
BenzeneMTBEToluene1,2,4-TrimethylbenzeneBromodichloromethaneBromoformChloroformDibromochloromethaneIPEEthylbenzene

FIGURES

ATTACHMENT I
Petroleum Service & Calibration, Inc.
www.testmytanks.com
Customer/Facility Information Company Information
Customer Name Circle K Stores, Inc.Company Name Petroleum Service & Calibration, Inc.
Location Name 2704132 Company Phone Number 877-479-8152
Site Address 2810 Pinecroft Road Company Address P.O. Box 851
City/State/Zip Greensboro, NC 27407 City Denver State NC
County Guilford Site Phone Number 336-299-4912 Job Number 72213 PSCIN 100377-1621
Facility ID#0-017603
Emission PO#
Comments and Problems Overview : 2020
Test Performed Product Tech Notes Anode
Bag
Installed
Pictures
Taken
PS&C
Will Make
Repairs
Spill Bucket NC (UST23A)(rev. 4/2018)Premium Spill Bucket fails. Will not hold water. Needs repair. Contact PS&C when repairs are made
to complete testing. To make this request send email to [e-mail] q q q
Technician Signature : 2020
Tester's Name Daniel W Gilmore
Test Date 01/24/2020
Tester's Signature
I certify under penalty of law that the test was conducted according to the protocol of the test method used and was performed in
accordance with all regulatory requirements of the state codes and that the submitted information is true, accurate and complete.q3
Petroleum Service & Calibration, Inc.
www.testmytanks.com
Customer/Facility Information Company Information
Customer Name Circle K Stores, Inc.Company Name Petroleum Service & Calibration, Inc.
Location Name 2704132 Company Phone Number 877-479-8152
Site Address 2810 Pinecroft Road Company Address P.O. Box 851
City/State/Zip Greensboro, NC 27407 City Denver State NC
County Guilford Site Phone Number 336-299-4912 Job Number 72213 PSCIN 100377-1621
Facility ID#0-017603
Emission PO#
Circle K Stores, Inc.2704132 0-017603
2810 Pinecroft Road Greensboro Guilford
Petroleum Service & Calibration, Inc.877-479-8152 [e-mail]
Daniel W Gilmore 01/24/2020
1
10058
Unleaded
Emco Wheaton
A1005 (Insert)
10
5 Minutes
1:40 pm 2:40 pm
9.5"9.5"
2
10058
Premium
Emco Wheaton
A1005 (Insert)
9
5 Minutes
1:40 pm 2:40 pm
9"5"
3
10058
Plus
Emco Wheaton
A1005 (Insert)
8.5
5 Minutes
1:40 pm 2:40 pm
8"8"
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Petroleum Service & Calibration, Inc.
www.testmytanks.com
Customer/Facility Information Company Information
Customer Name Circle K Stores, Inc.Company Name Petroleum Service & Calibration, Inc.
Location Name 2704132 Company Phone Number 877-479-8152
Site Address 2810 Pinecroft Road Company Address P.O. Box 851
City/State/Zip Greensboro, NC 27407 City Denver State NC
County Guilford Site Phone Number 336-299-4912 Job Number 72213 PSCIN 100377-1621
Facility ID#0-017603
Emission PO#
Parts Replacement Inspection : 2020
No Parts Replaced
Technician Signature : 2020
Tester's Name Daniel W Gilmore
Test Date 01/24/2020
Tester's Signature
I certify under penalty of law that the test was conducted according to the protocol of the test method used and was performed in
accordance with all regulatory requirements of the state codes and that the submitted information is true, accurate and complete.q3
Petroleum Service & Calibration, Inc.
www.testmytanks.com
Customer/Facility Information Company Information
Customer Name Circle K Stores, Inc.Company Name Petroleum Service & Calibration, Inc.
Location Name 2704132 Company Phone Number 877-479-8152
Site Address 2810 Pinecroft Road Company Address P.O. Box 851
City/State/Zip Greensboro, NC 27407 City Denver State NC
County Guilford Site Phone Number 336-299-4912 Job Number 72213 PSCIN 100377-1621
Facility ID#0-017603
Emission PO#
TECHNICIAN LICENSING - Daniel W Gilmore : 2020
Type Certified State License Issue Expiration
Compliance with OSHA Standard 1910.146 Confined Space Entry Nationwide NA 03/15/2019 03/15/2020
Compliance with OSHA Standard 1910.151 First Aid / CPR Training Nationwide NA 06/28/2019 06/28/2021
Compliance with OSHA Standard 1910.157 Fire Extinguisher Nationwide NA 06/28/2019 06/28/2021
Compliance with OSHA Standard 1910.23 Ladders Nationwide NA 08/082019 08/08/2020
Compliance with OSHA Standard 1926.503 Subpart M Fall Protection Nationwide NA 08/08/2019 08/08/2020
MVI-Titan MVI NC 10/01/2018
Powered by TCPDF (www.tcpdf.org)
============== Circle K #4132 - B
U5/7/20 LJM
WS _____
ATTACHMENT II
04-16-2020 S:\Enviro\Pantry\2704132 - Greensboro\Boring Logs\SB-1.borATC Project #CIRK4132
Greensboro, Guilford County, North Carolina
2810 Pinecroft Road
Circle K Store #2704132
SOIL BORING: SB-1
(Page 1 of 1)
Date(s) Drilled : 04/13/20
Drilling Contractor : Carolina Soil Investigation
Drilling Method : DPT Macrocore
Boring Diameter : 2.25 inches
Sampling Method : Macrocore
Sampling Interval : Continuous
Logged By : Cory Nobles
Depth In Feet0
2
4
6
8
10
12
14 USCSAR
ML
ML
ML GRAPHICDESCRIPTION
Asphalt
Red, Clayey SILT, Dry, Treated water or chlorinated water odor
Deep red, Clayey SILT, Dry
Deep red, Clayey SILT, Saturated
End of boring
PID
(ppm)
14.6
Boring terminated at 15ft. below ground surface.
PID reading of 14.6ppm was measured at 13 feet below ground surface.
SB-1 soil sample was collected at 13 feet below ground surface at 1300.

ATTACHMENT III

04/22/20
Technical Report for
ATC Group Services LLC
Circle K#4132
SGS Job Number: LA63128
Sampling Date: 04/13/20
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 04/22/20
e-Hardcopy 2.0
Automated Report
24
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 24
LA63128
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................5
3.1: LA63128-1: SB-1 .........................................................................................................6
Section 4: Misc. Forms ............................................................................................................10
4.1: Chain of Custody ...........................................................................................................11
Section 5: MS Volatiles - QC Data Summaries .....................................................................14
5.1: Method Blank Summary ................................................................................................15
5.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................18
Section 6: GC Volatiles - QC Data Summaries .....................................................................21
6.1: Method Blank Summary ................................................................................................22
6.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................23
6.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................24 1234562 of 24
LA63128
SGS North America Inc.
Sample Summary
ATC Group Services LLC
Job No:LA63128
Circle K#4132
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 RL
LA63128-1 04/13/20 13:00 CN 04/15/20 SO Soil SB-1
Soil samples reported on a dry weight basis unless otherwise indicated on result page.
3 of 24
LA631281
Summary of Hits Page 1 of 1
Job Number:LA63128
Account:ATC Group Services LLC
Project:Circle K#4132
Collected:04/13/20
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA63128-1 SB-1
Benzene 0.0055 0.00058 mg/kg SW846 8260B
Bromodichloromethane 0.0149 0.0012 mg/kg SW846 8260B
Bromoform 0.0059 0.0012 mg/kg SW846 8260B
Chloroform 0.115 0.0012 mg/kg SW846 8260B
Dibromochloromethane 0.0081 0.0012 mg/kg SW846 8260B
Di-Isopropyl Ether 0.0016 0.0012 mg/kg SW846 8260B
Ethylbenzene 0.0018 0.0012 mg/kg SW846 8260B
Methyl Tert Butyl Ether 0.0202 0.0012 mg/kg SW846 8260B
Toluene 0.0064 0.0058 mg/kg SW846 8260B
1,2,4-Trimethylbenzene 0.0080 0.0058 mg/kg SW846 8260B
m,p-Xylene 0.0057 0.0023 mg/kg SW846 8260B
o-Xylene 0.0046 0.0012 mg/kg SW846 8260B
Xylene (total)0.0103 0.0023 mg/kg SW846 8260B
4 of 24
LA631282
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
5 of 24
LA631283
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:SB-1
Lab Sample ID:LA63128-1 Date Sampled:04/13/20
Matrix:SO - Soil Date Received:04/15/20
Method:SW846 8260B Percent Solids:72.8
Project:Circle K#4132
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2H0063765.D 1 04/16/20 21:04 PJ n/a n/a V2H2512
Run #2
Initial Weight
Run #1 5.9 g
Run #2
VOA List for NC
CAS No.Compound Result RL Units Q
67-64-1 Acetone ND 0.058 mg/kg
71-43-2 Benzene 0.0055 0.00058 mg/kg
108-86-1 Bromobenzene ND 0.0012 mg/kg
74-97-5 Bromochloromethane ND 0.0012 mg/kg
75-27-4 Bromodichloromethane 0.0149 0.0012 mg/kg
75-25-2 Bromoform 0.0059 0.0012 mg/kg
104-51-8 n-Butylbenzene ND 0.0058 mg/kg
135-98-8 sec-Butylbenzene ND 0.0058 mg/kg
98-06-6 tert-Butylbenzene ND 0.0012 mg/kg
56-23-5 Carbon Tetrachloride ND 0.0012 mg/kg
108-90-7 Chlorobenzene ND 0.0012 mg/kg
75-00-3 Chloroethane ND 0.0012 mg/kg
67-66-3 Chloroform 0.115 0.0012 mg/kg
95-49-8 o-Chlorotoluene ND 0.0058 mg/kg
106-43-4 p-Chlorotoluene ND 0.0058 mg/kg
124-48-1 Dibromochloromethane 0.0081 0.0012 mg/kg
96-12-8 1,2-Dibromo-3-chloropropane ND 0.0058 mg/kg
106-93-4 1,2-Dibromoethane ND 0.0012 mg/kg
75-71-8 Dichlorodifluoromethane ND 0.0012 mg/kg
541-73-1 m-Dichlorobenzene ND 0.0012 mg/kg
95-50-1 o-Dichlorobenzene ND 0.0012 mg/kg
106-46-7 p-Dichlorobenzene ND 0.0012 mg/kg
75-34-3 1,1-Dichloroethane ND 0.0012 mg/kg
107-06-2 1,2-Dichloroethane ND 0.0012 mg/kg
75-35-4 1,1-Dichloroethylene ND 0.0012 mg/kg
156-59-2 cis-1,2-Dichloroethylene ND 0.0012 mg/kg
156-60-5 trans-1,2-Dichloroethylene ND 0.0012 mg/kg
78-87-5 1,2-Dichloropropane ND 0.0012 mg/kg
142-28-9 1,3-Dichloropropane ND 0.0012 mg/kg
594-20-7 2,2-Dichloropropane ND 0.0012 mg/kg
563-58-6 1,1-Dichloropropene ND 0.0012 mg/kg
10061-01-5 cis-1,3-Dichloropropene ND 0.0012 mg/kg
ND = Not detected 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 24
LA6312833.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:SB-1
Lab Sample ID:LA63128-1 Date Sampled:04/13/20
Matrix:SO - Soil Date Received:04/15/20
Method:SW846 8260B Percent Solids:72.8
Project:Circle K#4132
VOA List for NC
CAS No.Compound Result RL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.0012 mg/kg
108-20-3 Di-Isopropyl Ether 0.0016 0.0012 mg/kg
64-17-5 Ethyl Alcohol ND 0.47 mg/kg
100-41-4 Ethylbenzene 0.0018 0.0012 mg/kg
591-78-6 2-Hexanone ND 0.015 mg/kg
87-68-3 Hexachlorobutadiene ND 0.0058 mg/kg
98-82-8 Isopropylbenzene ND 0.0058 mg/kg
99-87-6 p-Isopropyltoluene ND 0.0058 mg/kg
74-83-9 Methyl Bromide ND 0.012 mg/kg
74-87-3 Methyl Chloride ND 0.0058 mg/kg
74-95-3 Methylene Bromide ND 0.0012 mg/kg
75-09-2 Methylene Chloride ND 0.0058 mg/kg
78-93-3 Methyl Ethyl Ketone ND 0.015 mg/kg
108-10-1 4-Methyl-2-pentanone ND 0.015 mg/kg
1634-04-4 Methyl Tert Butyl Ether 0.0202 0.0012 mg/kg
91-20-3 Naphthalene ND 0.0058 mg/kg
103-65-1 n-Propylbenzene ND 0.0058 mg/kg
100-42-5 Styrene ND 0.0012 mg/kg
630-20-6 1,1,1,2-Tetrachloroethane ND 0.0012 mg/kg
79-34-5 1,1,2,2-Tetrachloroethane ND 0.0012 mg/kg
127-18-4 Tetrachloroethylene ND 0.0012 mg/kg
108-88-3 Toluene 0.0064 0.0058 mg/kg
87-61-6 1,2,3-Trichlorobenzene ND 0.0058 mg/kg
120-82-1 1,2,4-Trichlorobenzene ND 0.0058 mg/kg
71-55-6 1,1,1-Trichloroethane ND 0.0012 mg/kg
79-00-5 1,1,2-Trichloroethane ND 0.0012 mg/kg
79-01-6 Trichloroethylene ND 0.0012 mg/kg
75-69-4 Trichlorofluoromethane ND 0.0012 mg/kg
96-18-4 1,2,3-Trichloropropane ND 0.0058 mg/kg
95-63-6 1,2,4-Trimethylbenzene 0.0080 0.0058 mg/kg
108-67-8 1,3,5-Trimethylbenzene ND 0.0058 mg/kg
108-05-4 Vinyl Acetate ND 0.0058 mg/kg
75-01-4 Vinyl Chloride ND 0.0012 mg/kg
m,p-Xylene 0.0057 0.0023 mg/kg
95-47-6 o-Xylene 0.0046 0.0012 mg/kg
1330-20-7 Xylene (total)0.0103 0.0023 mg/kg
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 91%59-143%
ND = Not detected 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 24
LA6312833.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:SB-1
Lab Sample ID:LA63128-1 Date Sampled:04/13/20
Matrix:SO - Soil Date Received:04/15/20
Method:SW846 8260B Percent Solids:72.8
Project:Circle K#4132
VOA List for NC
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 103%52-159%
460-00-4 4-Bromofluorobenzene 100%38-183%
ND = Not detected 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 24
LA6312833.1
SGS North America Inc.
Report of Analysis Page 1 of 1
Client Sample ID:SB-1
Lab Sample ID:LA63128-1 Date Sampled:04/13/20
Matrix:SO - Soil Date Received:04/15/20
Method:SW846 8015C SW846 5035 Percent Solids:72.8
Project:Circle K#4132
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 LA369209.D 1 04/17/20 15:35 NN 04/15/20 15:26 n/a GLA2992
Run #2
Initial Weight Final Volume Methanol Aliquot
Run #1 5.70 g 5.0 ml 100 ul
Run #2
CAS No.Compound Result RL Units Q
TPH-GRO (C6-C10)ND 7.9 mg/kg
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
460-00-4 4-Bromofluorobenzene 98%63-139%
540-36-3 1,4-Difluorobenzene 94%52-140%
ND = Not detected 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 24
LA6312833.1
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 4
10 of 24
LA631284
LA63128: Chain of Custody
Page 1 of 3
11 of 24
LA6312844.1
LA63128: Chain of Custody
Page 2 of 3
12 of 24
LA6312844.1
SGS Sample Receipt Summary
Job Number:LA63128 Client:ATC
Date / Time Received:4/15/2020 9:20:00 AM Delivery Method:FedEx
Project:CIRCLE K #4132
4. No. Coolers:1
Airbill #'s:4913 8691 4170
Cooler Security
1. Custody Seals Present:
Y or N
2. Custody Seals Intact:
3. COC Present:
4. Smpl Dates/Time OK
2. Thermometer ID:
Cooler Temperature Y or N
1. Temp criteria achieved:
3. Cooler media:
DV440;
Ice (direct contact)
Quality Control Preservation Y or N N/A
1. Trip Blank present / cooler:
2. Trip Blank listed on COC:
3. Samples preserved properly:
4. VOCs headspace free:
Sample Integrity - Documentation Y or N
1. Sample labels present on bottles:
2. Container labeling complete:
3. Sample container label / COC agree:
Sample Integrity - Condition Y or N
1. Sample recvd within HT:
3. Condition of sample:
2. All containers accounted for:
Sample Integrity - Instructions
1. Analysis requested is clear:
2. Bottles received for unspecified tests
3. Sufficient volume recvd for analysis:
4. Compositing instructions clear:
5. Filtering instructions clear:
Intact
Y or N
Comments
Y or N N/A
Cooler Temps (Initial/Adjusted):#1: (0.4/0.4); DV440
LA63128: Chain of Custody
Page 3 of 3
13 of 24
LA6312844.1
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
14 of 24
LA631285
Method Blank Summary Page 1 of 3
Job Number:LA63128
Account:ATCNCR ATC Group Services LLC
Project:Circle K#4132
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2H2512-MB1 2H0063747.D 1 04/16/20 PJ n/a n/a V2H2512
The QC reported here applies to the following samples:Method: SW846 8260B
LA63128-1
CAS No.Compound Result RL Units Q
67-64-1 Acetone 5.6 50 ug/kg J
71-43-2 Benzene ND 0.50 ug/kg
108-86-1 Bromobenzene ND 1.0 ug/kg
74-97-5 Bromochloromethane ND 1.0 ug/kg
75-27-4 Bromodichloromethane ND 1.0 ug/kg
75-25-2 Bromoform ND 1.0 ug/kg
104-51-8 n-Butylbenzene ND 5.0 ug/kg
135-98-8 sec-Butylbenzene ND 5.0 ug/kg
98-06-6 tert-Butylbenzene ND 1.0 ug/kg
56-23-5 Carbon Tetrachloride ND 1.0 ug/kg
108-90-7 Chlorobenzene ND 1.0 ug/kg
75-00-3 Chloroethane ND 1.0 ug/kg
67-66-3 Chloroform ND 1.0 ug/kg
95-49-8 o-Chlorotoluene ND 5.0 ug/kg
106-43-4 p-Chlorotoluene ND 5.0 ug/kg
124-48-1 Dibromochloromethane ND 1.0 ug/kg
96-12-8 1,2-Dibromo-3-chloropropane ND 5.0 ug/kg
106-93-4 1,2-Dibromoethane ND 1.0 ug/kg
75-71-8 Dichlorodifluoromethane ND 1.0 ug/kg
541-73-1 m-Dichlorobenzene ND 1.0 ug/kg
95-50-1 o-Dichlorobenzene ND 1.0 ug/kg
106-46-7 p-Dichlorobenzene ND 1.0 ug/kg
75-34-3 1,1-Dichloroethane ND 1.0 ug/kg
107-06-2 1,2-Dichloroethane ND 1.0 ug/kg
75-35-4 1,1-Dichloroethylene ND 1.0 ug/kg
156-59-2 cis-1,2-Dichloroethylene ND 1.0 ug/kg
156-60-5 trans-1,2-Dichloroethylene ND 1.0 ug/kg
78-87-5 1,2-Dichloropropane ND 1.0 ug/kg
142-28-9 1,3-Dichloropropane ND 1.0 ug/kg
594-20-7 2,2-Dichloropropane ND 1.0 ug/kg
563-58-6 1,1-Dichloropropene ND 1.0 ug/kg
10061-01-5 cis-1,3-Dichloropropene ND 1.0 ug/kg
10061-02-6 trans-1,3-Dichloropropene ND 1.0 ug/kg
108-20-3 Di-Isopropyl Ether ND 1.0 ug/kg
64-17-5 Ethyl Alcohol ND 400 ug/kg
100-41-4 Ethylbenzene ND 1.0 ug/kg
15 of 24
LA6312855.1.1
Method Blank Summary Page 2 of 3
Job Number:LA63128
Account:ATCNCR ATC Group Services LLC
Project:Circle K#4132
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2H2512-MB1 2H0063747.D 1 04/16/20 PJ n/a n/a V2H2512
The QC reported here applies to the following samples:Method: SW846 8260B
LA63128-1
CAS No.Compound Result RL Units Q
591-78-6 2-Hexanone ND 13 ug/kg
87-68-3 Hexachlorobutadiene ND 5.0 ug/kg
98-82-8 Isopropylbenzene ND 5.0 ug/kg
99-87-6 p-Isopropyltoluene ND 5.0 ug/kg
74-83-9 Methyl Bromide ND 10 ug/kg
74-87-3 Methyl Chloride ND 5.0 ug/kg
74-95-3 Methylene Bromide ND 1.0 ug/kg
75-09-2 Methylene Chloride ND 5.0 ug/kg
78-93-3 Methyl Ethyl Ketone ND 13 ug/kg
108-10-1 4-Methyl-2-pentanone ND 13 ug/kg
1634-04-4 Methyl Tert Butyl Ether ND 1.0 ug/kg
91-20-3 Naphthalene ND 5.0 ug/kg
103-65-1 n-Propylbenzene ND 5.0 ug/kg
100-42-5 Styrene ND 1.0 ug/kg
630-20-6 1,1,1,2-Tetrachloroethane ND 1.0 ug/kg
79-34-5 1,1,2,2-Tetrachloroethane ND 1.0 ug/kg
127-18-4 Tetrachloroethylene ND 1.0 ug/kg
108-88-3 Toluene ND 5.0 ug/kg
87-61-6 1,2,3-Trichlorobenzene ND 5.0 ug/kg
120-82-1 1,2,4-Trichlorobenzene ND 5.0 ug/kg
71-55-6 1,1,1-Trichloroethane ND 1.0 ug/kg
79-00-5 1,1,2-Trichloroethane ND 1.0 ug/kg
79-01-6 Trichloroethylene ND 1.0 ug/kg
75-69-4 Trichlorofluoromethane ND 1.0 ug/kg
96-18-4 1,2,3-Trichloropropane ND 5.0 ug/kg
95-63-6 1,2,4-Trimethylbenzene ND 5.0 ug/kg
108-67-8 1,3,5-Trimethylbenzene ND 5.0 ug/kg
108-05-4 Vinyl Acetate ND 5.0 ug/kg
75-01-4 Vinyl Chloride ND 1.0 ug/kg
m,p-Xylene ND 2.0 ug/kg
95-47-6 o-Xylene ND 1.0 ug/kg
1330-20-7 Xylene (total)ND 2.0 ug/kg
16 of 24
LA6312855.1.1
Method Blank Summary Page 3 of 3
Job Number:LA63128
Account:ATCNCR ATC Group Services LLC
Project:Circle K#4132
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2H2512-MB1 2H0063747.D 1 04/16/20 PJ n/a n/a V2H2512
The QC reported here applies to the following samples:Method: SW846 8260B
LA63128-1
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 98%59-143%
2037-26-5 Toluene-D8 109%52-159%
460-00-4 4-Bromofluorobenzene 91%38-183%
17 of 24
LA6312855.1.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA63128
Account:ATCNCR ATC Group Services LLC
Project:Circle K#4132
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2H2512-BS1 2H0063744.D 1 04/16/20 PJ n/a n/a V2H2512
V2H2512-BSD1 2H0063745.D 1 04/16/20 PJ n/a n/a V2H2512
The QC reported here applies to the following samples:Method: SW846 8260B
LA63128-1
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/kg ug/kg %ug/kg %RPD Rec/RPD
67-64-1 Acetone 50 57.7 115 57.2 114 1 40-153/30
71-43-2 Benzene 20 19.3 97 18.2 91 6 67-135/30
108-86-1 Bromobenzene 20 19.5 98 18.5 93 5 54-144/30
74-97-5 Bromochloromethane 20 19.1 96 18.8 94 2 50-147/30
75-27-4 Bromodichloromethane 20 18.9 95 18.3 92 3 54-146/30
75-25-2 Bromoform 20 16.8 84 14.3 72 16 49-145/30
104-51-8 n-Butylbenzene 20 17.2 86 16.9 85 2 47-160/30
135-98-8 sec-Butylbenzene 20 16.9 85 16.0 80 5 51-155/30
98-06-6 tert-Butylbenzene 20 15.7 79 16.1 81 3 53-152/30
56-23-5 Carbon Tetrachloride 20 15.7 79 14.3 72 9 50-152/30
108-90-7 Chlorobenzene 20 17.8 89 16.7 84 6 57-144/30
75-00-3 Chloroethane 20 34.9 175 36.1 181* a 3 38-176/30
67-66-3 Chloroform 20 17.0 85 16.2 81 5 53-147/30
95-49-8 o-Chlorotoluene 20 16.6 83 15.4 77 8 52-151/30
106-43-4 p-Chlorotoluene 20 15.9 80 16.9 85 6 52-150/30
124-48-1 Dibromochloromethane 20 16.6 83 17.3 87 4 54-146/30
96-12-8 1,2-Dibromo-3-chloropropane 20 12.5 63 13.2 66 5 51-145/30
106-93-4 1,2-Dibromoethane 20 18.7 94 18.5 93 1 55-145/30
75-71-8 Dichlorodifluoromethane 20 21.8 109 21.2 106 3 24-179/30
541-73-1 m-Dichlorobenzene 20 17.0 85 16.5 83 3 54-147/30
95-50-1 o-Dichlorobenzene 20 16.3 82 17.0 85 4 55-144/30
106-46-7 p-Dichlorobenzene 20 16.9 85 16.6 83 2 54-147/30
75-34-3 1,1-Dichloroethane 20 17.3 87 16.8 84 3 53-148/30
107-06-2 1,2-Dichloroethane 20 18.0 90 17.6 88 2 55-144/30
75-35-4 1,1-Dichloroethylene 20 14.1 71 14.1 71 0 49-153/30
156-59-2 cis-1,2-Dichloroethylene 20 16.3 82 15.3 77 6 52-147/30
156-60-5 trans-1,2-Dichloroethylene 20 15.2 76 15.4 77 1 51-152/30
78-87-5 1,2-Dichloropropane 20 19.2 96 18.8 94 2 56-145/30
142-28-9 1,3-Dichloropropane 20 16.3 82 17.0 85 4 53-145/30
594-20-7 2,2-Dichloropropane 20 15.8 79 14.8 74 7 35-176/30
563-58-6 1,1-Dichloropropene 20 16.8 84 15.9 80 6 49-157/30
10061-01-5 cis-1,3-Dichloropropene 20 16.9 85 16.5 83 2 54-148/30
10061-02-6 trans-1,3-Dichloropropene 20 14.6 73 14.7 74 1 53-151/30
108-20-3 Di-Isopropyl Ether 20 16.7 84*16.5 83*1 85-120/30
64-17-5 Ethyl Alcohol 400 276 69 402 101 37*31-164/30
100-41-4 Ethylbenzene 20 17.1 86 16.7 84 2 69-136/30
* = Outside of Control Limits.
18 of 24
LA6312855.2.1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA63128
Account:ATCNCR ATC Group Services LLC
Project:Circle K#4132
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2H2512-BS1 2H0063744.D 1 04/16/20 PJ n/a n/a V2H2512
V2H2512-BSD1 2H0063745.D 1 04/16/20 PJ n/a n/a V2H2512
The QC reported here applies to the following samples:Method: SW846 8260B
LA63128-1
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/kg ug/kg %ug/kg %RPD Rec/RPD
591-78-6 2-Hexanone 50 42.0 84 48.0 96 13 45-148/30
87-68-3 Hexachlorobutadiene 20 17.5 88 17.1 86 2 48-168/30
98-82-8 Isopropylbenzene 20 17.0 85 16.0 80 6 52-151/30
99-87-6 p-Isopropyltoluene 20 15.8 79 16.9 85 7 50-155/30
74-83-9 Methyl Bromide 20 24.1 121 25.8 129 7 40-170/30
74-87-3 Methyl Chloride 20 18.8 94 18.0 90 4 39-152/30
74-95-3 Methylene Bromide 20 18.3 92 19.1 96 4 53-147/30
75-09-2 Methylene Chloride 20 15.6 78 16.3 82 4 51-142/30
78-93-3 Methyl Ethyl Ketone 50 42.8 86 42.4 85 1 48-150/30
108-10-1 4-Methyl-2-pentanone 50 45.8 92 46.5 93 2 50-151/30
1634-04-4 Methyl Tert Butyl Ether 20 14.8 74 15.5 78 5 61-142/30
91-20-3 Naphthalene 20 16.3 82 16.3 82 0 58-147/30
103-65-1 n-Propylbenzene 20 16.8 84 16.4 82 2 50-154/30
100-42-5 Styrene 20 18.6 93 17.1 86 8 56-145/30
630-20-6 1,1,1,2-Tetrachloroethane 20 18.3 92 16.3 82 12 56-147/30
79-34-5 1,1,2,2-Tetrachloroethane 20 15.5 78 17.0 85 9 55-141/30
127-18-4 Tetrachloroethylene 20 18.5 93 17.1 86 8 54-156/30
108-88-3 Toluene 20 17.3 87 15.9 80 8 71-135/30
87-61-6 1,2,3-Trichlorobenzene 20 18.8 94 17.4 87 8 51-157/30
120-82-1 1,2,4-Trichlorobenzene 20 18.1 91 17.5 88 3 48-163/30
71-55-6 1,1,1-Trichloroethane 20 15.6 78 14.2 71 9 52-153/30
79-00-5 1,1,2-Trichloroethane 20 17.9 90 17.8 89 1 55-144/30
79-01-6 Trichloroethylene 20 20.5 103 18.9 95 8 56-151/30
75-69-4 Trichlorofluoromethane 20 28.4 142 27.6 138 3 36-171/30
96-18-4 1,2,3-Trichloropropane 20 17.7 89 17.4 87 2 45-139/30
95-63-6 1,2,4-Trimethylbenzene 20 16.5 83 16.7 84 1 50-153/30
108-67-8 1,3,5-Trimethylbenzene 20 14.9 75 15.4 77 3 51-153/30
108-05-4 Vinyl Acetate 20 17.9 90 18.6 93 4 23-188/30
75-01-4 Vinyl Chloride 20 17.7 89 17.3 87 2 42-155/30
m,p-Xylene 40 34.5 86 32.4 81 6 70-140/30
95-47-6 o-Xylene 20 16.8 84 14.9 75 12 70-132/30
1330-20-7 Xylene (total)60 51.2 85 47.4 79 8 69-138/30
* = Outside of Control Limits.
19 of 24
LA6312855.2.1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA63128
Account:ATCNCR ATC Group Services LLC
Project:Circle K#4132
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2H2512-BS1 2H0063744.D 1 04/16/20 PJ n/a n/a V2H2512
V2H2512-BSD1 2H0063745.D 1 04/16/20 PJ n/a n/a V2H2512
The QC reported here applies to the following samples:Method: SW846 8260B
LA63128-1
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 86%94%59-143%
2037-26-5 Toluene-D8 97%96%52-159%
460-00-4 4-Bromofluorobenzene 94%92%38-183%
(a) Outside control limits biased high. Analyte not detected in associated samples.
* = Outside of Control Limits.
20 of 24
LA6312855.2.1
SGS North America Inc.
GC Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and Duplicate Summaries
Scott, LA
Section 6
21 of 24
LA631286
Method Blank Summary Page 1 of 1
Job Number:LA63128
Account:ATCNCR ATC Group Services LLC
Project:Circle K#4132
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
GLA2992-MB1 LA369197.D 1 04/17/20 NN n/a n/a GLA2992
The QC reported here applies to the following samples:Method: SW846 8015C
LA63128-1
CAS No.Compound Result RL Units Q
TPH-GRO (C6-C10)ND 5.0 mg/kg
CAS No.Surrogate Recoveries Limits
460-00-4 4-Bromofluorobenzene 96%63-139%
540-36-3 1,4-Difluorobenzene 94%52-140%
22 of 24
LA6312866.1.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 1
Job Number:LA63128
Account:ATCNCR ATC Group Services LLC
Project:Circle K#4132
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
GLA2992-BS1 LA369189.D 1 04/17/20 NN n/a n/a GLA2992
GLA2992-BSD1 LA369191.D 1 04/17/20 NN n/a n/a GLA2992
The QC reported here applies to the following samples:Method: SW846 8015C
LA63128-1
Spike BSP BSP BSD BSD Limits
CAS No.Compound mg/kg mg/kg %mg/kg %RPD Rec/RPD
TPH-GRO (C6-C10)50 49.7 99 47.4 95 5 79-121/6
CAS No.Surrogate Recoveries BSP BSD Limits
460-00-4 4-Bromofluorobenzene 99%97%63-139%
540-36-3 1,4-Difluorobenzene 96%96%52-140%
* = Outside of Control Limits.
23 of 24
LA6312866.2.1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1
Job Number:LA63128
Account:ATCNCR ATC Group Services LLC
Project:Circle K#4132
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA63128-1MS LA369241.D 1 04/17/20 NN n/a n/a GLA2992
LA63128-1MSD LA369243.D 1 04/17/20 NN n/a n/a GLA2992
LA63128-1 LA369209.D 1 04/17/20 NN n/a n/a GLA2992
The QC reported here applies to the following samples:Method: SW846 8015C
LA63128-1
LA63128-1 Spike MS MS Spike MSD MSD Limits
CAS No.Compound mg/kg Q mg/kg mg/kg %mg/kg mg/kg %RPD Rec/RPD
TPH-GRO (C6-C10)ND 158 153 97 158 143 91 7* a 79-121/6
CAS No.Surrogate Recoveries MS MSD LA63128-1 Limits
460-00-4 4-Bromofluorobenzene 100%101%98%63-139%
540-36-3 1,4-Difluorobenzene 98%98%94%52-140%
(a) RPD exceeded criteria. However, both recoveries passed criteria and the samples were ND.
* = Outside of Control Limits.
24 of 24
LA6312866.3.1