AS-3303_28466_CA_RS_20230123_MRP

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

January 23, 2023

Mr. Dan Murphy
North Carolina Department of Environmental Quality
Asheville Regional Office
Division of Waste Management - UST Section
2090 US Highway 70
Swannanoa, North Carolina 28778

Re: Updated Receptor Survey Information and Groundwater Sampling Results
Former Tilley’s Superette
1710 Union Grove Road
Lenoir. Caldwell County, North Carolina
NCDEQ Incident No. 28466
NCDEQ Ranking H155D

Dear Mr. Murphy:
On behalf of Cary Oil Co., Inc. (Cary Oil), ATC Associates of North Carolina, P.C. (ATC) has prepared
this letter report to provide a summary of updated receptor survey information and the groundwater
sampling event performed at the site, as approved in TA-42. A site location map is provided as Figure 1
and a site map is provided as Figure 2.

Water Supply Wells
According to Baton Water, public water is supplied to the area; however, it is not mandatory for properties
to be connected to the public water system. The subject facility is connected to the public water system.

Twenty-one (21) properties were identified with water supply wells. One potable water supply well was
identified approximately 1,175 feet west of the source area. The remaining 20 properties are connected to
the public water system. Of the 20 properties, three of the water supply wells are used for non-potable
purposes (one property reportedly contains two water supply wells) and the remaining 18 water supply
wells are non-operational. The three non-potable water supply wells are located approximately 712 feet
east and 740 feet northwest of the source area. Water supply well information is provided on Table 1. The
approximate locations of the water supply wells are provided on Figure 3.

Surface Water
Stafford Creek was identified approximately 1,300 feet southeast of the source area. Other surface water
bodies were not identified within 1,500 feet of the source area.

January 23, 2023
Page 2 of 3
Regional Geology and Hydrogeology
According to the Geologic Map of North Carolina (1985), the site is located within the Inner Piedmont
Physiographic Province. The site lies in an area of metamorphosed rock that includes biotite gneiss/schist,
mica schist, and small masses of granitic rock in closely interlayered and gradational relationships. The
Geologic Map shows large scale, east-west interfingering of biotite gneiss/schist and mica gneiss in the site
vicinity. The rocks of the Piedmont weather to regolith of various textures and thicknesses so that the land
surface only occasionally has outcrops. A weather profile often includes relatively unstructured residuum
in shallow zones, saprolite with some residual rock structure in deeper zones, and partially weathered rock
above the bedrock. The depth to bedrock varies from near land surface adjacent to the occasional outcrops
to depths of over 100 feet below land surface in areas with readily weathered rock.

According to the North Carolina Department of Environmental Quality (NCDEQ) website, no formal
aquifer system designation has been provided for the regional site vicinity. However, groundwater in the
Piedmont is often first encountered as a water table in pores within the overburden saprolite/residuum.
Permeability varies with lithology and is typically relatively low in the many residual soils with higher
permeability in saprolite due to relict rock texture and variable susceptibility to weathering exhibited by
different minerals in the rock. Groundwater becomes increasingly confined to fractures and other structural
features as rock integrity increases at depth.

The shallow aquifer occurrence varies in depth from ground surface at springs, creeks, and rivers to as deep
as 50 feet or more beneath upland surfaces in some parts of the Piedmont. Water in the alluvium usually
behaves as an unconfined aquifer and will yield water with head elevation equivalent to the first elevation
where water was encountered. Saprolite groundwater flow is usually in rough occurrence with local
topographic conditions and is toward local drainage features.

Wellhead Protection
At the time of this letter report, the source area is not located within an approved wellhead protection area
as defined in 42 USC 300h-7(e).

Zoning and Land Use
The site is zoned for commercial purposes (RA-20). Properties surrounding the subject property are zoned
for residential purposes (RA-20). The nearest residence was identified approximately 220 feet north of the
source area. Adjacent properties are identified on Table 2.

frTc January 23,2023
Page 3 of3
Groundwater Samplins
On December 13,2022, ATC collected a static water level measurement from monitoring wells MW-I,
MW-2, MW-3, MW-5D, MW-9, MW-l2, MW-I6D, and MW-l7. Light non-aqueous phase liquid
(LNAPL) was not measured in the wells on this date. The depths to water measurements were collected
using an electronic oil/water interface probe. Groundwater elevation data are provided on Table 3. A
groundwater elevation contour map is provided as Figure 4. It appears groundwater flow is toward the
south across the site.
On December 13,2022, groundwater samples were collected from monitoring wells MW- l, MW-2, MW-3,
MW-5D, MW-9, MW-12, MW-16D, and MW-17, 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 in Scott, Louisiana, for analyses. The groundwater samples
were analyzed by Environmental Protection Agency (EPA) Method 602.
The laboratory analytical results of the groundwater samples collected from montioring wells MW-1,
MW-2, MW-3, MW-9, and MW-I2 detected target compound concentrations above established 2L
Standards. Dissolved benzene was detected above its established Gross Contaminant Level (GCL) in the
groundwater sample collected from montioring we[l MW-2. A summary of the groundwater analytical data
is provided in Table 4. A dissolved benzene isoconcentation map is provided as Figure 5. Dissolved
contaminants of concern are depicted on Figure 6. A copy of the laboratory analytical report is included
as Attachment I.
If you have any questions or require additional information, please contact our office at [phone].
Sincerely,
ATC Associates of North Carolinaih,ffi
\., "
Maureen Jackson, P.G.
Senior Project Manager
231',,
not /aJ
:YSor-o
cc: Ms. Aimee Gibbs, Cary Oil Company,

TABLES

TABLE 1
WATER SUPPLY WELL INFORMATION
FORMER TILLEY'S SUPERETTE
1710 UNION GROVE ROAD
LENOIR, CALDWELL COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 28466
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2746279330 1 Harold and Ora Belle Tilley
(decreased) c/o Warren Tilley
2083 Baton School Road
Lenoir, NC 28645 1710 Union Grove Road Yes Yes Non-operational SITE
2746276008 2 Josh Young et al 1958 Parkwood Drive
Lenoir, NC 28645 1958 Parkwood Drive Yes Yes Non-operational 590 feet
northwest
2746278629 3 Chad and Barbara Woodruff 1920 Parkwood Drive
Lenoir, NC 28645 1920 Parkwood Drive Yes Yes Non-operational 400 feet
north
2746381020 4 Faye Harrison 1898 Parkwood Drive
Lenoir, NC 28645 1898 Parkwood Drive Yes Yes Non-operational 570 feet
north
2746375958 5 Jimmy and Carol Shehan 1873 Parkwood Drive
Lenoir, NC 28645 1873 Parkwood Drive Yes Yes Non-operational 800 feet
northeast
2746365482 6 Thomas and Leslie Williams 1679 Union Grove Road
Lenoir, NC 28645 1679 Union Grove Road Yes Yes Irrigation 712 feet
east
2746372532 7 Gregory and Aundrea Norwood 1696 Union Grove Road
Lenoir, NC 28645 1696 Union Grove Road Yes Yes Non-operational 230 feet
east
2746168905 8 Christopher and Tracy Blevins 2023 Craig Road
Lenoir, NC 28645 2023 Craig Road Yes Yes Non-operational 1,300 feet
west
2476169889 9 Joey and Donna Watson 2015 Craig Road
Lenoir, NC 28645 2015 Craig Road Yes Yes Non-operational 1,150 feet
west
2746274626 10 Richard and Allene Bryant 3915 Edgewood Terrace Drive
Greensboro, NC 27406 3988 Horace Bolick Road Yes Yes Irrigation
(2 wells)
740 feet
northwest
2746373651 11 Robert Lambert 1781 Union Grove Road
Lenoir, NC 28645 1686 Union Grove Road Yes Yes Non-operational 465 feet
east
2746264941 12 Michael Bowman P.O. Box 1287
Hudson, NC 28638 1758 Union Grove Road Yes Yes Non-operational 800 feet
southwest
2746371792 13 David Hollar 1905 Parkwood Drive
Lenoir, NC 28645 1905 Parkwood Drive Yes Yes Non-operational 430 feet
north
2746279896 14 Larry and Carolyn Woodie 1910 Parkwood Drive
Lenoir, NC 28645 1910 Parkwood Drive Yes Yes Non-operational 525 feet
north
2746279801 15 James and Sheryl Cutright 1914 Parkwood Drive
Lenoir, NC 28645 1914 Parkwood Drive Yes Yes Non-operational 480 feet
north
2746261745 16 Bethany Hopkins 1762 Union Grove Road
Lenoir, NC 28645 1762 Union Grove Road Yes Yes Non-operational 1,100 feet
southwest
2746374849 17 Ruby McLean 1889 Parkwood Drive
Lenoir, NC 28645 1889 Parkwood Drive Yes Yes Non-operational 670 feet
northeast
2746289695 18 Carl Story 3870 Angelic Way
Lenoir, NC 28645 3870 Angelic Way Yes Yes Non-operational 1,400 feet
north
2746177440 19 Ricardo and Pared Quiles P.O. Box 551
Harrison, NJ 07029 2016 Craig Road No Yes Potable 1,175 feet
west
2746381611 20 Carl Story 3882 Angelic Way
Lenoir, NC 28645 3882 Angelic Way Yes Yes Non-operational 1,200 feet
north
2746281014 21 Rodney and Sandi Cannon 3970 Horace Bolick Road
Lenoir, NC 28645 3970 Horace Bolick Road Yes Yes Non-operational 1,200 feet
northwest
TABLE 2
ADJACENT PROPERTY OWNER INFORMATION
FORMER TILLEY'S SUPERETTE
1710 UNION GROVE ROAD
LENOIR, CALDWELL COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 28466
Property Property Owner Property Owner Address Property Description Property Address
Site: Narrow
Way Baptist Church
Hardold and Ora Belle Tilley
(decreased) c/o Warren Tilley
2083 Baton School Road
Lenoir, NC 28645 Former Gas Station/RA-20 1710 Union Grove Road
East of the Site:
REsidence Samuel and Teresa Craven 1695 Union Grove Road Lenoir,
NC 28645 Residence/RA-20 1695 Union Grove Road
North of the Site:
Residence Matthew Griffin P.O. Box 699
Lenoir, NC 28645 Residence/RA-20 1917 Parkwood Drive
South of the Site:
Residence Silverio and Irma Contreras 1717 Union Grove Road Lenoir,
NC 28645 Residence/RA-20 1717 Union Grove Road
West of the Site:
Residence Phillip Stuart 1935 Parkwood Drive
Lenoir, NC 28645 Residence/RA-20 1935 Parkwood Drive
North of the Site:
Residence
Reba Hateley and Keith Auton
c/o Reba Jackson
1058 Sleepy Hollow Road
Lenoir, CN 28645 Residence/RA-20 1909 Parkwood Drive
TABLE 3
CURRENT GROUNDWATER ELEVATION DATA
FORMER TILLEY'S SUPERETTE
1710 UNION GROVE ROAD
LENOIR, CALDWELL COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 28466
MW-1 12/13/2022 1281.46 36.78 1244.68
MW-2 12/13/2022 1280.48 36.91 1243.57
MW-3 12/13/2022 1281.55 36.32 1245.23
MW-5D 12/13/2022 1281.40 36.94 1245.08
MW-9 12/13/2022 1275.90 35.66 1240.24
MW-12 12/13/2022 1274.80 36.19 1238.61
MW-16D 12/13/2022 1275.24 36.82 1238.42
MW-17 12/13/2022 1274.88 37.85 1237.03
Notes:
1. Elevations are based on site survey map developed by The Isaacs Group, dated 7/6/2009.
2. Total well depths measured from top of casing.
Monitoring
Well ID
Date
Measured
Top of Casing
(feet)
Depth of Water
(feet)
Groundwater
Elevation (feet)
TABLE 4 CURRENT GROUNDWATER ANALYTICAL RESULTS
FORMER TILLEY'S SUPERETTE
1710 UNION GROVE ROAD
LENOIR, CALDWELL COUNTY, NORTH CAROLINA
NCDEQ INCIDENT NO. 28466
Well ID
Date
Collected
MW-1 12/13/2022 1,990 17,400 2,690 16,300 <800 1,360 <100
MW-2 12/13/2022 14,100 23,100 1,450 8,450 2,560 1,340 1,180
MW-3 12/13/2022 3.3J 189 333 2,060 <40 525 <5.0
MW-5D 12/13/2022 <1.0 <1.0 <1.0 <3.0 <8.0 1.8J <1.0
MW-9 12/13/2022 3.8 0.38J 3.2 14.7 <8.0 6.9J 0.44J
MW-12 12/13/2022 61.2 <1.0 <1.0 <3.0 19.1 10.6 7.8
MW-16D 12/13/2022 <1.0 <1.0 <1.0 <3.0 <8.0 1.5J 0.96J
MW-17 12/13/2022 <1.0 <1.0 <1.0 <3.0 1.3J <10 <1.0
1 600 600 500 20 6 70
5,000 260,000 80,000 50,000 20,000 6,000 70,000
Notes:
1. "<" or ND denotes concentration not detected at or above the laboratory reporting limit.
2. Concentrations are reported in micrograms per liter (mg/l) = parts per billion.
3. Concentrations in bold print equal or exceed the 2L Standard.
4. Concentrations in bold and italic print equal or exceed the GCL.
5. NCDEQ denotes North Carolina Department of Environmental Quality.
6. GCL denotes Gross Contaminantion Level.
7. MTBE denotes Methyl Tertiary Butyl Ether.
8. IPE Denotes isopropyl ether.
GCL (mg/l)
MT
B
E
2L Standard (mg/l)
Analytical Method EPA Method 602
Contaminant of
Concern
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FIGURES

SITE
CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO.
TITLE
DATE
MW-6
MW-8
MW-15
MW-14
MW-13
MW-19
MW-18
MW-17
MW-12
MW-10
MW-9MW-16D
MW-2
MW-11
MW-3
MW-1
MW-4
MW-20
MW-5D
MW-7
CEN
T
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R

S
T
R
E
E
T
UNIO
N

G
R
O
V
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R
O
A
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FORMER
TILLEY'S
SUPERETTE
FORMER
SOUTH
UST BASIN
FORMER
NORTH
UST BASIN
PA
R
K
W
O
O
D

D
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I
V
E
= TYPE II MONITORING WELL
= TYPE III MONITORING WELL
1,500' RADIUS
1,000' RADIUS
500' RADIUS
SITE
MW-6
MW-8
MW-15
MW-14
MW-13
MW-19
MW-18
MW-17
MW-12
MW-10
MW-9MW-16D
MW-2
MW-11
MW-3
MW-1
MW-4
MW-20
MW-5D
MW-7
CEN
T
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R

S
T
R
E
E
T
UNIO
N

G
R
O
V
E

R
O
A
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FORMER
TILLEY'S
SUPERETTE
FORMER
SOUTH
UST BASIN
FORMER
NORTH
UST BASIN
PA
R
K
W
O
O
D

D
R
I
V
E
= GROUNDWATER ELEVATION IN FEET
= GROUNDWATER ELEVATION CONTOUR
= GROUNDWATER FLOW DIRECTION
82.87
(DASHED WHERE INFERRED)
= TYPE II MONITORING WELL
= TYPE III MONITORING WELL
1,244.68
1,243.57
1,245.23
1,245.08
1,240.24
1,238.61
1,238.42
1,237.03
NM
NM
NM
NM
NM
NM
NM
NM
NM
NM
NM
= NOT MEASUREDNM
1,237
1,238
1,239
1,240
1,241
1,242
1,243
1,244
1,245
MW-6
MW-8
MW-15
MW-14
MW-13
MW-19
MW-18
MW-17
MW-12
MW-10
MW-9MW-16D
MW-2
MW-11
MW-3
MW-1
MW-4
MW-20
MW-5D
MW-7
CEN
T
E
R

S
T
R
E
E
T
UNIO
N

G
R
O
V
E

R
O
A
D
FORMER
TILLEY'S
SUPERETTE
FORMER
SOUTH
UST BASIN
FORMER
NORTH
UST BASIN
PA
R
K
W
O
O
D

D
R
I
V
E
= BENZENE CONCENTRATION IN µg/L
= BENZENE ISOCONCENTRATION CONTOUR
61.2
(DASHED WHERE INFERRED)
= TYPE II MONITORING WELL
= TYPE III MONITORING WELL
1,990
14,100
3.3J
<1.0
3.8
61.2
<1.0
NS
= NOT MEASUREDNS
NS
NS
NS
NS
NS
NS
NS
NS
NS
NS
NS
<1.0
10,000
1,000
1
MW-6
MW-8
MW-15
MW-14
MW-13
MW-19
MW-18
MW-17
MW-12
MW-10
MW-9MW-16D
MW-2
MW-11
MW-3
MW-1
MW-4
MW-20
MW-5D
MW-7
CEN
T
E
R

S
T
R
E
E
T
UNIO
N

G
R
O
V
E

R
O
A
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FORMER
TILLEY'S
SUPERETTE
FORMER
SOUTH
UST BASIN
FORMER
NORTH
UST BASIN
PA
R
K
W
O
O
D

D
R
I
V
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= TYPE II MONITORING WELL
= TYPE III MONITORING WELL

ATTACHMENT I

12/29/22
Technical Report for
Atlas
Tilley's Superette-Lenoir, NC
SGS Job Number: LA86155
Sampling Date: 12/13/22
Report to:
ATC Group Services LLC.
2725 East Millbrook Road Suite 121
Raleigh, NC 27604
[e-mail]
ATTN: Maureen Jackson
Total number of pages in report:
Certifications: LDEQ(2048), LDHH(LA150012), AR(14-045-04), AZ(AZ0805), FL(E87657), IL(200082), KY(#31),
NC(487), SC(73004001), NJ(LA007), TX(T104704186-18-16), WV(257)
This report shall not be reproduced, except in its entirety, without the written approval of SGS.
Test results relate only to samples analyzed.
SGS North America Inc.  500 Ambassador Caffery  Scott, LA 70583  tel: [phone]
Test results contained within this data package meet the requirements
of the National Environmental Laboratory Accreditation Program
and/or state specific certification programs as applicable.
Client Service contact: Rebecca Hebert 337-237-4775
Ron Benjamin
Lab Director
Scott, LA 12/29/22
e-Hardcopy 2.0
Automated Report
26
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 26
LA86155
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................6
3.1: LA86155-1: MW-17 .....................................................................................................7
3.2: LA86155-2: MW-12 .....................................................................................................8
3.3: LA86155-3: MW-16D ..................................................................................................9
3.4: LA86155-4: MW-9 .......................................................................................................10
3.5: LA86155-5: MW-2 .......................................................................................................11
3.6: LA86155-6: MW-5D ....................................................................................................12
3.7: LA86155-7: MW-1 .......................................................................................................13
3.8: LA86155-8: MW-3 .......................................................................................................14
Section 4: Misc. Forms ............................................................................................................15
4.1: Chain of Custody ...........................................................................................................16
Section 5: GC Volatiles - QC Data Summaries .....................................................................20
5.1: Method Blank Summary ................................................................................................21
5.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................23
5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................25
1
2
3
4
5
2 of 26
LA86155
SGS North America Inc.
Sample Summary
Atlas
Job No:LA86155
Tilley's Superette-Lenoir, NC
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
This report contains results reported as ND = Not detected. The following applies:
Organics ND = Not detected above the MDL
LA86155-1 12/13/22 09:35 NR 12/14/22 AQ Ground Water MW-17
LA86155-2 12/13/22 09:55 NR 12/14/22 AQ Ground Water MW-12
LA86155-3 12/13/22 10:35 NR 12/14/22 AQ Ground Water MW-16D
LA86155-4 12/13/22 11:05 NR 12/14/22 AQ Ground Water MW-9
LA86155-5 12/13/22 11:30 NR 12/14/22 AQ Ground Water MW-2
LA86155-6 12/13/22 12:10 NR 12/14/22 AQ Ground Water MW-5D
LA86155-7 12/13/22 12:40 NR 12/14/22 AQ Ground Water MW-1
LA86155-8 12/13/22 13:00 NR 12/14/22 AQ Ground Water MW-3
3 of 26
LA86155
1
Summary of Hits Page 1 of 2
Job Number:LA86155
Account:Atlas
Project:Tilley's Superette-Lenoir, NC
Collected:12/13/22
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA86155-1 MW-17
Methyl Tert Butyl Ether 1.3 J 8.0 1.3 ug/l EPA 602
LA86155-2 MW-12
Benzene 61.2 1.0 0.39 ug/l EPA 602
Isopropyl Ether 7.8 1.0 0.33 ug/l EPA 602
Methyl Tert Butyl Ether 19.1 8.0 1.3 ug/l EPA 602
Naphthalene 10.6 10 0.68 ug/l EPA 602
LA86155-3 MW-16D
Isopropyl Ether 0.96 J 1.0 0.33 ug/l EPA 602
Naphthalene 1.5 J 10 0.68 ug/l EPA 602
LA86155-4 MW-9
Benzene 3.8 1.0 0.39 ug/l EPA 602
Ethylbenzene 3.2 1.0 0.15 ug/l EPA 602
Isopropyl Ether 0.44 J 1.0 0.33 ug/l EPA 602
Naphthalene 6.9 J 10 0.68 ug/l EPA 602
Toluene 0.38 J 1.0 0.25 ug/l EPA 602
Xylenes (total)14.7 3.0 0.86 ug/l EPA 602
o-Xylene 8.1 1.0 0.53 ug/l EPA 602
m,p-Xylene 6.6 2.0 0.36 ug/l EPA 602
LA86155-5 MW-2
Benzene 14100 100 39 ug/l EPA 602
Ethylbenzene 1450 100 15 ug/l EPA 602
Isopropyl Ether 1180 100 33 ug/l EPA 602
Methyl Tert Butyl Ether 2560 800 130 ug/l EPA 602
Naphthalene 1340 1000 68 ug/l EPA 602
Toluene 23100 100 25 ug/l EPA 602
Xylenes (total)8450 300 86 ug/l EPA 602
o-Xylene 3100 100 53 ug/l EPA 602
m,p-Xylene 5340 200 36 ug/l EPA 602
LA86155-6 MW-5D
Naphthalene 1.8 J 10 0.68 ug/l EPA 602
4 of 26
LA86155
2
Summary of Hits Page 2 of 2
Job Number:LA86155
Account:Atlas
Project:Tilley's Superette-Lenoir, NC
Collected:12/13/22
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA86155-7 MW-1
Benzene 1990 100 39 ug/l EPA 602
Ethylbenzene 2690 100 15 ug/l EPA 602
Naphthalene 1360 1000 68 ug/l EPA 602
Toluene 17400 100 25 ug/l EPA 602
Xylenes (total)16300 300 86 ug/l EPA 602
o-Xylene 5680 100 53 ug/l EPA 602
m,p-Xylene 10600 200 36 ug/l EPA 602
LA86155-8 MW-3
Benzene 3.3 J 5.0 1.9 ug/l EPA 602
Ethylbenzene 333 5.0 0.76 ug/l EPA 602
Naphthalene 525 50 3.4 ug/l EPA 602
Toluene 189 5.0 1.3 ug/l EPA 602
Xylenes (total)2060 15 4.3 ug/l EPA 602
o-Xylene 799 5.0 2.6 ug/l EPA 602
m,p-Xylene 1260 10 1.8 ug/l EPA 602
5 of 26
LA86155
2
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
6 of 26
LA86155
3
SGS North America Inc.
Report of Analysis Page 1 of 1
Client Sample ID:MW-17
Lab Sample ID:LA86155-1 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/14/22
Method:EPA 602 Percent Solids:n/a
Project:Tilley's Superette-Lenoir, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 LP312020.D 1 12/27/22 20:22 MB n/a n/a GLP3496
Run #2
Purge Volume
Run #1 5.0 ml
Run #2
Full 602 List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 1.0 0.39 ug/l
108-90-7 Chlorobenzene ND 1.0 0.28 ug/l
95-50-1 1,2-Dichlorobenzene ND 1.0 0.30 ug/l
541-73-1 1,3-Dichlorobenzene ND 1.0 0.22 ug/l
106-46-7 1,4-Dichlorobenzene ND 1.0 0.24 ug/l
100-41-4 Ethylbenzene ND 1.0 0.15 ug/l
108-20-3 Isopropyl Ether ND 1.0 0.33 ug/l
1634-04-4 Methyl Tert Butyl Ether 1.3 8.0 1.3 ug/l J
91-20-3 Naphthalene ND 10 0.68 ug/l
108-88-3 Toluene ND 1.0 0.25 ug/l
1330-20-7 Xylenes (total)ND 3.0 0.86 ug/l
95-47-6 o-Xylene ND 1.0 0.53 ug/l
m,p-Xylene ND 2.0 0.36 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
540-36-3 1,4-Difluorobenzene 102%83-115%
460-00-4 4-Bromofluorobenzene 106%74-131%
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
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Report of Analysis Page 1 of 1
Client Sample ID:MW-12
Lab Sample ID:LA86155-2 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/14/22
Method:EPA 602 Percent Solids:n/a
Project:Tilley's Superette-Lenoir, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 LP312021.D 1 12/27/22 20:51 MB n/a n/a GLP3496
Run #2
Purge Volume
Run #1 5.0 ml
Run #2
Full 602 List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 61.2 1.0 0.39 ug/l
108-90-7 Chlorobenzene ND 1.0 0.28 ug/l
95-50-1 1,2-Dichlorobenzene ND 1.0 0.30 ug/l
541-73-1 1,3-Dichlorobenzene ND 1.0 0.22 ug/l
106-46-7 1,4-Dichlorobenzene ND 1.0 0.24 ug/l
100-41-4 Ethylbenzene ND 1.0 0.15 ug/l
108-20-3 Isopropyl Ether 7.8 1.0 0.33 ug/l
1634-04-4 Methyl Tert Butyl Ether 19.1 8.0 1.3 ug/l
91-20-3 Naphthalene 10.6 10 0.68 ug/l
108-88-3 Toluene ND 1.0 0.25 ug/l
1330-20-7 Xylenes (total)ND 3.0 0.86 ug/l
95-47-6 o-Xylene ND 1.0 0.53 ug/l
m,p-Xylene ND 2.0 0.36 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
540-36-3 1,4-Difluorobenzene 102%83-115%
460-00-4 4-Bromofluorobenzene 112%74-131%
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
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Report of Analysis Page 1 of 1
Client Sample ID:MW-16D
Lab Sample ID:LA86155-3 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/14/22
Method:EPA 602 Percent Solids:n/a
Project:Tilley's Superette-Lenoir, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 LP311885.D 1 12/23/22 17:59 MB n/a n/a GLP3493
Run #2
Purge Volume
Run #1 5.0 ml
Run #2
Full 602 List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 1.0 0.39 ug/l
108-90-7 Chlorobenzene ND 1.0 0.28 ug/l
95-50-1 1,2-Dichlorobenzene ND 1.0 0.30 ug/l
541-73-1 1,3-Dichlorobenzene ND 1.0 0.22 ug/l
106-46-7 1,4-Dichlorobenzene ND 1.0 0.24 ug/l
100-41-4 Ethylbenzene ND 1.0 0.15 ug/l
108-20-3 Isopropyl Ether 0.96 1.0 0.33 ug/l J
1634-04-4 Methyl Tert Butyl Ether ND 8.0 1.3 ug/l
91-20-3 Naphthalene 1.5 10 0.68 ug/l J
108-88-3 Toluene ND 1.0 0.25 ug/l
1330-20-7 Xylenes (total)ND 3.0 0.86 ug/l
95-47-6 o-Xylene ND 1.0 0.53 ug/l
m,p-Xylene ND 2.0 0.36 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
540-36-3 1,4-Difluorobenzene 100%83-115%
460-00-4 4-Bromofluorobenzene 106%74-131%
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
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Report of Analysis Page 1 of 1
Client Sample ID:MW-9
Lab Sample ID:LA86155-4 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/14/22
Method:EPA 602 Percent Solids:n/a
Project:Tilley's Superette-Lenoir, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 LP312022.D 1 12/27/22 21:19 MB n/a n/a GLP3496
Run #2
Purge Volume
Run #1 5.0 ml
Run #2
Full 602 List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 3.8 1.0 0.39 ug/l
108-90-7 Chlorobenzene ND 1.0 0.28 ug/l
95-50-1 1,2-Dichlorobenzene ND 1.0 0.30 ug/l
541-73-1 1,3-Dichlorobenzene ND 1.0 0.22 ug/l
106-46-7 1,4-Dichlorobenzene ND 1.0 0.24 ug/l
100-41-4 Ethylbenzene 3.2 1.0 0.15 ug/l
108-20-3 Isopropyl Ether 0.44 1.0 0.33 ug/l J
1634-04-4 Methyl Tert Butyl Ether ND 8.0 1.3 ug/l
91-20-3 Naphthalene 6.9 10 0.68 ug/l J
108-88-3 Toluene 0.38 1.0 0.25 ug/l J
1330-20-7 Xylenes (total)14.7 3.0 0.86 ug/l
95-47-6 o-Xylene 8.1 1.0 0.53 ug/l
m,p-Xylene 6.6 2.0 0.36 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
540-36-3 1,4-Difluorobenzene 103%83-115%
460-00-4 4-Bromofluorobenzene 101%74-131%
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
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Report of Analysis Page 1 of 1
Client Sample ID:MW-2
Lab Sample ID:LA86155-5 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/14/22
Method:EPA 602 Percent Solids:n/a
Project:Tilley's Superette-Lenoir, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 LP312025.D 100 12/27/22 22:45 MB n/a n/a GLP3496
Run #2 a LP311886.D 10 12/23/22 18:31 MB n/a n/a GLP3493
Purge Volume
Run #1 5.0 ml
Run #2 5.0 ml
Full 602 List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 14100 100 39 ug/l
108-90-7 Chlorobenzene ND 100 28 ug/l
95-50-1 1,2-Dichlorobenzene ND 100 30 ug/l
541-73-1 1,3-Dichlorobenzene ND 100 22 ug/l
106-46-7 1,4-Dichlorobenzene ND 100 24 ug/l
100-41-4 Ethylbenzene 1450 100 15 ug/l
108-20-3 Isopropyl Ether 1180 100 33 ug/l
1634-04-4 Methyl Tert Butyl Ether 2560 800 130 ug/l
91-20-3 Naphthalene 1340 1000 68 ug/l
108-88-3 Toluene 23100 100 25 ug/l
1330-20-7 Xylenes (total)8450 300 86 ug/l
95-47-6 o-Xylene 3100 100 53 ug/l
m,p-Xylene 5340 200 36 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
540-36-3 1,4-Difluorobenzene 102%113%83-115%
460-00-4 4-Bromofluorobenzene 110%154% b 74-131%
(a) Sample used for QC purposes only.
(b) Outside control limits due to matrix interference. Confirmed by MS/MSD at a dilution.
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
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Report of Analysis Page 1 of 1
Client Sample ID:MW-5D
Lab Sample ID:LA86155-6 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/14/22
Method:EPA 602 Percent Solids:n/a
Project:Tilley's Superette-Lenoir, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 LP311892.D 1 12/23/22 21:43 MB n/a n/a GLP3493
Run #2
Purge Volume
Run #1 5.0 ml
Run #2
Full 602 List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 1.0 0.39 ug/l
108-90-7 Chlorobenzene ND 1.0 0.28 ug/l
95-50-1 1,2-Dichlorobenzene ND 1.0 0.30 ug/l
541-73-1 1,3-Dichlorobenzene ND 1.0 0.22 ug/l
106-46-7 1,4-Dichlorobenzene ND 1.0 0.24 ug/l
100-41-4 Ethylbenzene ND 1.0 0.15 ug/l
108-20-3 Isopropyl Ether ND 1.0 0.33 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 8.0 1.3 ug/l
91-20-3 Naphthalene 1.8 10 0.68 ug/l J
108-88-3 Toluene ND 1.0 0.25 ug/l
1330-20-7 Xylenes (total)ND 3.0 0.86 ug/l
95-47-6 o-Xylene ND 1.0 0.53 ug/l
m,p-Xylene ND 2.0 0.36 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
540-36-3 1,4-Difluorobenzene 100%83-115%
460-00-4 4-Bromofluorobenzene 107%74-131%
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
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Report of Analysis Page 1 of 1
Client Sample ID:MW-1
Lab Sample ID:LA86155-7 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/14/22
Method:EPA 602 Percent Solids:n/a
Project:Tilley's Superette-Lenoir, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 LP312026.D 100 12/27/22 23:14 MB n/a n/a GLP3496
Run #2
Purge Volume
Run #1 5.0 ml
Run #2
Full 602 List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 1990 100 39 ug/l
108-90-7 Chlorobenzene ND 100 28 ug/l
95-50-1 1,2-Dichlorobenzene ND 100 30 ug/l
541-73-1 1,3-Dichlorobenzene ND 100 22 ug/l
106-46-7 1,4-Dichlorobenzene ND 100 24 ug/l
100-41-4 Ethylbenzene 2690 100 15 ug/l
108-20-3 Isopropyl Ether ND 100 33 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 800 130 ug/l
91-20-3 Naphthalene 1360 1000 68 ug/l
108-88-3 Toluene 17400 100 25 ug/l
1330-20-7 Xylenes (total)16300 300 86 ug/l
95-47-6 o-Xylene 5680 100 53 ug/l
m,p-Xylene 10600 200 36 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
540-36-3 1,4-Difluorobenzene 98%83-115%
460-00-4 4-Bromofluorobenzene 104%74-131%
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
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Report of Analysis Page 1 of 1
Client Sample ID:MW-3
Lab Sample ID:LA86155-8 Date Sampled:12/13/22
Matrix:AQ - Ground Water Date Received:12/14/22
Method:EPA 602 Percent Solids:n/a
Project:Tilley's Superette-Lenoir, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 LP312027.D 5 12/27/22 23:42 MB n/a n/a GLP3496
Run #2
Purge Volume
Run #1 5.0 ml
Run #2
Full 602 List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 3.3 5.0 1.9 ug/l J
108-90-7 Chlorobenzene ND 5.0 1.4 ug/l
95-50-1 1,2-Dichlorobenzene ND 5.0 1.5 ug/l
541-73-1 1,3-Dichlorobenzene ND 5.0 1.1 ug/l
106-46-7 1,4-Dichlorobenzene ND 5.0 1.2 ug/l
100-41-4 Ethylbenzene 333 5.0 0.76 ug/l
108-20-3 Isopropyl Ether ND 5.0 1.6 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 40 6.3 ug/l
91-20-3 Naphthalene 525 50 3.4 ug/l
108-88-3 Toluene 189 5.0 1.3 ug/l
1330-20-7 Xylenes (total)2060 15 4.3 ug/l
95-47-6 o-Xylene 799 5.0 2.6 ug/l
m,p-Xylene 1260 10 1.8 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
540-36-3 1,4-Difluorobenzene 98%83-115%
460-00-4 4-Bromofluorobenzene 108%74-131%
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
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SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
 Chain of Custody
Scott, LA
Section 4
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4
SGS North America Inc - Orlando
Chain of Custodv
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Client Purchase Order #
GW - Ground
SW - Surfaco
SO - Soil
SL- Sludge
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LIO - Other Liquid
Field lD / Point of Colleclion -
SGS
Orlando
Sample #
N\{)LAB IJSE ONLY
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LA86155: Chain of Custody
Page 1 of 4
16 of 26
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LA86155: Chain of Custody
Page 2 of 4
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1
Job Number:LA86155 Client:ATLAS TECHNICAL CONSULTANTS
Date / Time Received:12/14/2022 10:30:00 AM Delivery Method:FED EX
Project:TILLEY'S SUPERETTE
4. No. Coolers:1
Airbill #'s:
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:
IR002;
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: (1.2/1);
SGS Sample Receipt Summary
LA86155: Chain of Custody
Page 3 of 4
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Page 2 of 2
Problem Resolution
CSR:Response Date:
Response:
Job Number:LA86155
LA86155: Chain of Custody
Page 4 of 4
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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 5
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Method Blank Summary Page 1 of 1
Job Number:LA86155
Account:ATCNCR Atlas
Project:Tilley's Superette-Lenoir, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
GLP3493-MB1 LP311872.D 1 12/23/22 MB n/a n/a GLP3493
The QC reported here applies to the following samples:Method: EPA 602
LA86155-3, LA86155-6
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 1.0 0.39 ug/l
108-90-7 Chlorobenzene 0.34 1.0 0.28 ug/l J
95-50-1 1,2-Dichlorobenzene 1.2 1.0 0.30 ug/l
541-73-1 1,3-Dichlorobenzene 1.0 1.0 0.22 ug/l
106-46-7 1,4-Dichlorobenzene 1.2 1.0 0.24 ug/l
100-41-4 Ethylbenzene 0.41 1.0 0.15 ug/l J
108-20-3 Isopropyl Ether ND 1.0 0.33 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 8.0 1.3 ug/l
91-20-3 Naphthalene 6.2 10 0.68 ug/l J
108-88-3 Toluene ND 1.0 0.25 ug/l
1330-20-7 Xylenes (total)1.2 3.0 0.86 ug/l J
95-47-6 o-Xylene ND 1.0 0.53 ug/l
m,p-Xylene 0.74 2.0 0.36 ug/l J
CAS No.Surrogate Recoveries Limits
540-36-3 1,4-Difluorobenzene 107%83-115%
460-00-4 4-Bromofluorobenzene 119%74-131%
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Method Blank Summary Page 1 of 1
Job Number:LA86155
Account:ATCNCR Atlas
Project:Tilley's Superette-Lenoir, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
GLP3496-MB1 LP312019.D 1 12/27/22 MB n/a n/a GLP3496
The QC reported here applies to the following samples:Method: EPA 602
LA86155-1, LA86155-2, LA86155-4, LA86155-5, LA86155-7, LA86155-8
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 1.0 0.39 ug/l
108-90-7 Chlorobenzene ND 1.0 0.28 ug/l
95-50-1 1,2-Dichlorobenzene ND 1.0 0.30 ug/l
541-73-1 1,3-Dichlorobenzene ND 1.0 0.22 ug/l
106-46-7 1,4-Dichlorobenzene ND 1.0 0.24 ug/l
100-41-4 Ethylbenzene ND 1.0 0.15 ug/l
108-20-3 Isopropyl Ether ND 1.0 0.33 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 8.0 1.3 ug/l
91-20-3 Naphthalene 2.1 10 0.68 ug/l J
108-88-3 Toluene ND 1.0 0.25 ug/l
1330-20-7 Xylenes (total)ND 3.0 0.86 ug/l
95-47-6 o-Xylene ND 1.0 0.53 ug/l
m,p-Xylene ND 2.0 0.36 ug/l
CAS No.Surrogate Recoveries Limits
540-36-3 1,4-Difluorobenzene 101%83-115%
460-00-4 4-Bromofluorobenzene 105%74-131%
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2
Blank Spike/Blank Spike Duplicate Summary Page 1 of 1
Job Number:LA86155
Account:ATCNCR Atlas
Project:Tilley's Superette-Lenoir, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
GLP3493-BS1 LP311870.D 1 12/23/22 MB n/a n/a GLP3493
GLP3493-BSD1 LP311871.D 1 12/23/22 MB n/a n/a GLP3493
The QC reported here applies to the following samples:Method: EPA 602
LA86155-3, LA86155-6
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
71-43-2 Benzene 50 53.6 107 53.4 107 0 88-115/10
108-90-7 Chlorobenzene 50 53.0 106 54.5 109 3 88-114/10
95-50-1 1,2-Dichlorobenzene 50 52.0 104 54.2 108 4 54-142/10
541-73-1 1,3-Dichlorobenzene 50 53.5 107 56.3 113 5 83-118/10
106-46-7 1,4-Dichlorobenzene 50 55.4 111 57.8 116 4 80-121/10
100-41-4 Ethylbenzene 50 51.7 103 52.5 105 2 87-114/10
108-20-3 Isopropyl Ether 50 55.2 110 55.0 110 0 83-117/10
1634-04-4 Methyl Tert Butyl Ether 50 55.8 112 55.8 112 0 68-130/19
91-20-3 Naphthalene 50 59.2 118 65.5 131 10 58-140/18
108-88-3 Toluene 50 52.7 105 52.9 106 0 88-114/10
1330-20-7 Xylenes (total)150 163 109 167 111 2 86-114/10
95-47-6 o-Xylene 50 52.1 104 53.6 107 3 87-115/10
m,p-Xylene 100 111 111 114 114 3 86-115/10
CAS No.Surrogate Recoveries BSP BSD Limits
540-36-3 1,4-Difluorobenzene 106%106%83-115%
460-00-4 4-Bromofluorobenzene 115%120%74-131%
* = Outside of Control Limits.
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Blank Spike/Blank Spike Duplicate Summary Page 1 of 1
Job Number:LA86155
Account:ATCNCR Atlas
Project:Tilley's Superette-Lenoir, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
GLP3496-BS1 LP312014.D 1 12/27/22 MB n/a n/a GLP3496
GLP3496-BSD1 LP312015.D 1 12/27/22 MB n/a n/a GLP3496
The QC reported here applies to the following samples:Method: EPA 602
LA86155-1, LA86155-2, LA86155-4, LA86155-5, LA86155-7, LA86155-8
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
71-43-2 Benzene 50 48.0 96 50.2 100 4 88-115/10
108-90-7 Chlorobenzene 50 49.3 99 50.6 101 3 88-114/10
95-50-1 1,2-Dichlorobenzene 50 46.4 93 46.7 93 1 54-142/10
541-73-1 1,3-Dichlorobenzene 50 47.7 95 48.4 97 1 83-118/10
106-46-7 1,4-Dichlorobenzene 50 48.0 96 48.3 97 1 80-121/10
100-41-4 Ethylbenzene 50 50.1 100 51.3 103 2 87-114/10
108-20-3 Isopropyl Ether 50 49.9 100 50.5 101 1 83-117/10
1634-04-4 Methyl Tert Butyl Ether 50 48.3 97 49.0 98 1 68-130/19
91-20-3 Naphthalene 50 43.1 86 47.1 94 9 58-140/18
108-88-3 Toluene 50 47.3 95 48.1 96 2 88-114/10
1330-20-7 Xylenes (total)150 157 105 160 107 2 86-114/10
95-47-6 o-Xylene 50 52.4 105 53.5 107 2 87-115/10
m,p-Xylene 100 105 105 107 107 2 86-115/10
CAS No.Surrogate Recoveries BSP BSD Limits
540-36-3 1,4-Difluorobenzene 101%99%83-115%
460-00-4 4-Bromofluorobenzene 104%100%74-131%
* = Outside of Control Limits.
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Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1
Job Number:LA86155
Account:ATCNCR Atlas
Project:Tilley's Superette-Lenoir, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA86155-5MS LP311887.D 20 12/23/22 MB n/a n/a GLP3493
LA86155-5MSD LP311888.D 20 12/23/22 MB n/a n/a GLP3493
LA86155-5 a LP311886.D 10 12/23/22 MB n/a n/a GLP3493
The QC reported here applies to the following samples:Method: EPA 602
LA86155-3, LA86155-6
LA86155-5 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
71-43-2 Benzene 14400 E 1000 15200 80 1000 14500 10* b 5 69-129/10
108-90-7 Chlorobenzene ND 1000 1140 114 1000 1110 111 3 76-122/10
95-50-1 1,2-Dichlorobenzene ND 1000 1860 186*1000 1780 178*4 37-154/14
541-73-1 1,3-Dichlorobenzene ND 1000 1300 130*1000 1250 125 4 67-129/12
106-46-7 1,4-Dichlorobenzene ND 1000 1320 132*1000 1270 127 4 66-131/13
100-41-4 Ethylbenzene 1500 1000 2500 100 1000 2400 90 4 75-121/10
108-20-3 Isopropyl Ether 1460 1000 2660 120 1000 2540 108 5 73-126/12
1634-04-4 Methyl Tert Butyl Ether 3880 1000 5000 112 1000 4880 100 2 63-136/22
91-20-3 Naphthalene 3050 1000 5130 208* b 1000 4880 183* b 5 46-151/21
108-88-3 Toluene 24600 E 1000 24800 20* b 1000 23700 -90* b 5 69-130/10
1330-20-7 Xylenes (total)8410 E 3000 11200 93 3000 10700 76 5 71-126/10
95-47-6 o-Xylene 2970 1000 3850 88 1000 3700 73 4 72-126/11
m,p-Xylene 5440 E 2000 7350 96 2000 7050 81 4 69-127/11
CAS No.Surrogate Recoveries MS MSD LA86155-5 Limits
540-36-3 1,4-Difluorobenzene 110%102%113%83-115%
460-00-4 4-Bromofluorobenzene 134%*123%154%* c 74-131%
(a) Sample used for QC purposes only.
(b) Outside control limits due to high level in sample relative to spike amount.
(c) Outside control limits due to matrix interference. Confirmed by MS/MSD at a dilution.
* = Outside of Control Limits.
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Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1
Job Number:LA86155
Account:ATCNCR Atlas
Project:Tilley's Superette-Lenoir, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA86155-8MS LP312029.D 20 12/28/22 MB n/a n/a GLP3496
LA86155-8MSD LP312030.D 20 12/28/22 MB n/a n/a GLP3496
LA86155-8 LP312027.D 5 12/27/22 MB n/a n/a GLP3496
The QC reported here applies to the following samples:Method: EPA 602
LA86155-1, LA86155-2, LA86155-4, LA86155-5, LA86155-7, LA86155-8
LA86155-8 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
71-43-2 Benzene 3.3 J 1000 1030 103 1000 1020 102 1 69-129/10
108-90-7 Chlorobenzene ND 1000 1030 103 1000 1010 101 2 76-122/10
95-50-1 1,2-Dichlorobenzene ND 1000 1370 137 1000 1370 137 0 37-154/14
541-73-1 1,3-Dichlorobenzene ND 1000 974 97 1000 975 98 0 67-129/12
106-46-7 1,4-Dichlorobenzene ND 1000 947 95 1000 950 95 0 66-131/13
100-41-4 Ethylbenzene 333 1000 1410 108 1000 1370 104 3 75-121/10
108-20-3 Isopropyl Ether ND 1000 1050 105 1000 1030 103 2 73-126/12
1634-04-4 Methyl Tert Butyl Ether ND 1000 998 100 1000 959 96 4 63-136/22
91-20-3 Naphthalene 525 1000 1440 92 1000 1460 94 1 46-151/21
108-88-3 Toluene 189 1000 1180 99 1000 1150 96 3 69-130/10
1330-20-7 Xylenes (total)2060 3000 5520 115 3000 5410 112 2 71-126/10
95-47-6 o-Xylene 799 1000 1960 116 1000 1930 113 2 72-126/11
m,p-Xylene 1260 2000 3560 115 2000 3480 111 2 69-127/11
CAS No.Surrogate Recoveries MS MSD LA86155-8 Limits
540-36-3 1,4-Difluorobenzene 99%99%98%83-115%
460-00-4 4-Bromofluorobenzene 107%107%108%74-131%
* = Outside of Control Limits.
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