FA-743_13349_CA_LTRRPT_20221208

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

December 8, 2022

Mr. James Brown
North Carolina Department of Environmental Quality
Division of Waste Management, UST Section
Fayetteville Regional Office
225 Green Street, Suite 714
Fayetteville, North Carolina 28301

Re: Groundwater Sampling Results
Former Hardy Gulf
484 Carthage Street
Cameron, Moore County, North Carolina
NCDEQ UST Incident No. 13349
Risk Classification: I141D

Dear Mr. Brown:

On behalf of Cenama, LLC, ATC Associates of North Carolina, P.C. (ATC) has prepared this letter report
to provide a summary of the groundwater sampling event performed at the referenced location. A site
location map is provided as Figure 1 and a site map is provided as Figure 2.

Groundwater Sampling
On November 9, 2022, ATC collected a static water level measurement from monitoring wells MW-1,
MW-3, TW-1, and TW-2. 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 1. Due to limited groundwater elevation data, a
groundwater flow map could not be generated. Historically, groundwater appears to flow in an easterly
direction across the site.

On November 9, 2022, groundwater samples were collected from monitoring wells MW-1, MW-3, TW-1,
and TW-2, 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 collected were analyzed by Environmental
Protection Agency (EPA) Method 6200B.

The laboratory analytical results of the groundwater samples detected dissolved benzene concentrations
above its established Gross Contaminant Levels (GCLs) in monitoring wells MW-1 and MW-3. A
,r,ffi,December 8,2022
Page 2 of 2
dissolved 1,2-Dichloroethane concentration was detected above its established GCL in the groundwater
samples collected from monitoring wells MW-3 and TW-1. A summary of the groundwater analytical data
is provided in Table 2. Dissolved contaminants of concern are provided on Figure 3. 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(919) 871-0999.
Sincerely,
ATC Associates of North Carolina, P.C.
N.C. Licensed Geologist No. 23 l2
cc: Mrs. Greta Stanley, Cenama, LLC
Mdureen Jackson,Y.G.
t'$Jr*- c3i
ryIH

TABLES

TABLE 1
GROUNDWATER ELEVATION DATA
HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NC
NCDEQ INCIDENT NO. 13349
Depth to
Water (feet)
Groundwater
Elevation
(feet)
MW-1 Unknown 2 20-35 35 100.00 27.98 72.02
MW-3 Unknown 4 20-50 50 99.85 28.80 71.05
TW-1 Unknown 2 Unknown 45 99.97 28.78 71.19
TW-2 Unknown 2 Unknown 68.5 Unknown 32.65 --
Notes:
1. Elevations are referenced to an arbitrary on-site benchmark of 100.00 feet.
2. Total well depths measured from top of casing.
Depth of Well
(feet)
Top of Casing
(feet)
Date Measured: 11/9/22
Monitoring
Well ID Date Installed
Well Casing
Diameter
(Inches)
Screened
Interval
(feet)
TABLE 2
SELECT NATURAL ATTENUATION MEASUREMENTS

FORMER HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NC
NCDEQ INCIDENT NO. 13349
Monitoring
Well ID Date pH (unitless)
Dissolved
Oxygen
(mg/L)
Specific
Conductivity
(µs/cm2)
Temperature
(Celcius)ORP (Eh)
6/18/2019 5.57 1.82 0.163 23.1 84.1
12/12/2019
12/21/2021 6.49 0.63 0.284 19.70 71.1
5/17/2022
11/9/2022
6/18/2019 5.62 1.40 0.160 23.3 73.2
12/12/2019
12/21/2021 6.48 0.60 0.214 19.65 73.2
5/17/2022
11/9/2022
6/18/2019 6.64 1.15 0.560 22.6 -52.8
12/12/2019
12/21/2021 6.49 0.76 0.515 19.04 67.1
5/17/2022
11/9/2022 6.68 2.27 0.474 20.7 9.3
6/18/2019 6.66 4.87 0.396 23.5 28.7
12/12/2019
12/21/2021 6.51 0.63 0.460 19.22 59.3
5/17/2022
11/9/2022 6.15 3.13 0.348 19.5 113.6
Not Measured
Not Measured
Not Measured
Not Measured
TW-2
MW-1
MW-3
TW-1
No Measurements - YSI Faulty
Not Measured - Strong Petro Odor
Not Measured - Strong Petro Odor
No Measurements - YSI Faulty
No Measurements - YSI Faulty
No Measurements - YSI Faulty
TABLE 4
GROUNDWATER ANALYTICAL SUMMARY
HARDY GULF
484 CARTHAGE STREET
CAMERON, MOORE COUNTY, NC
NCDEQ INCIDENT NO. 13349
Well ID
Date
Collected
MW-1 11/9/2022 6,220 6,800 3,210 23,500E 39,730 <50 22.1J 756 124 <1,000 <50 27.7J 241 19.9J 25.4J <10 <50 5,270E 1,440 185 543
MW-3 11/9/2022 7,470E 268 6,170E 16,400E 30,308E <25 29.3 1,560 <25 <500 <25 46.2 443 <15 86.3 <5.0 162 8,000E 2,470 341 985
TW-1 11/9/2022 3,160 75.4 485 252 3,972.4 326 44.8 101 <10 66.5J <10 <10 619 20.8 54.0 3.5 <10 94.9 38.8 48.6 <10
TW-2 11/9/2022 10.5 <2.5 7.1 <2.5 17.6 131 20.8 2.6 <2.5 16.4J 5.6 <2.5 353 1.7 1.8J <0.50 <2.5 <2.5 <2.5 2.4J <2.5
5,000 260,000 80,000 50,000 NE 20,000 70,000 6,000 5,900 6,000,000 NE 11,700 400 600 3,000 30 NE 28,500 24,100 30,500 26,100
Notes:
1. "<" or ND = Not detected at or above the laboratory detection limit.
2. Concentrations are reported in micrograms per liter (mg/l) = parts per billion.
3. Concentrations in bold print equal or exceed the NCDEQ GCL.
4. GCL = Gross Contaminantion Level.
5. NE = Not Established.
6. MTBE = Methyl Tertiary Butyl Ether.
7. Gross Contamination Levels for Groundwater are referenced in the Guidelines for Assessment and Corrective Action, November 2008, updated 2021.
8. J denotes compound concentration estimated by project laboratory.
9. BTEX = Benzene, Toluene, Ethylbenzene, Total Xylenes
10. E = Indicates value exceeds calibration range.1,2,3-Trichloropropanen-Propylbenzene1,3,5-Trimethylbenzenep-IsopropyltolueneEPAMethod 6200B
1,2,4-TrimethylbenzeneIsopropylbenzenen-ButylbenzeneVinyl Chloride1,2-DichloroethaneAnalytical Method
Contaminant of
Concern
BenzeneTolueneIsopropyl etherNaphthaleneMethyl ChlorideGCL (mg/l)MTBEEthylbenzeneTotal XylenesTotal BTEX1,2-DichloropropaneChloroethaneAcetone

FIGURES

MW-10MW-4MW-7MW-2MW-8MW-5MW-9MW-6CARTHAGE STREETCARTER STREET
FORMERHARDY GULFTW-3TW-2MW-3MW-1TW-1
MW-10MW-4MW-7MW-2MW-8MW-5MW-9MW-6CARTHAGE STREETCARTER STREET
FORMERHARDY GULFTW-3TW-2MW-3MW-1TW-1

ATTACHMENT I

12/06/22
Technical Report for
Atlas
Hardy Gulf 484 Carthage St, Cameron, NC
HARDYTA39
SGS Job Number: LA85217
Sampling Date: 11/09/22
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 12/06/22
e-Hardcopy 2.0
Automated Report
37
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 37
LA85217
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................6
3.1: LA85217-1: MW-1 .......................................................................................................7
3.2: LA85217-2: MW-3 .......................................................................................................10
3.3: LA85217-3: TW-1 ........................................................................................................13
3.4: LA85217-4: TW-2 ........................................................................................................16
Section 4: Misc. Forms ............................................................................................................19
4.1: Chain of Custody ...........................................................................................................20
Section 5: MS Volatiles - QC Data Summaries .....................................................................25
5.1: Method Blank Summary ................................................................................................26
5.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................30
5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................34 123452 of 37
LA85217
SGS North America Inc.
Sample Summary
Atlas
Job No:LA85217
Hardy Gulf 484 Carthage St, Cameron, NC
Project No: HARDYTA39
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
LA85217-1 11/09/22 12:30 ADS 11/11/22 AQ Ground Water MW-1
LA85217-2 11/09/22 11:40 ADS 11/11/22 AQ Ground Water MW-3
LA85217-3 11/09/22 12:00 ADS 11/11/22 AQ Ground Water TW-1
LA85217-4 11/09/22 10:50 ADS 11/11/22 AQ Ground Water TW-2
3 of 37
LA852171
Summary of Hits Page 1 of 2
Job Number:LA85217
Account:Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Collected:11/09/22
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA85217-1 MW-1
Benzene 6220 50 27 ug/l SM 6200B
n-Butylbenzene 124 50 9.2 ug/l SM 6200B
1,2-Dichloroethane 241 20 12 ug/l SM 6200B
1,2-Dichloropropane 19.9 J 30 13 ug/l SM 6200B
Di-Isopropyl Ether 22.1 J 50 7.3 ug/l SM 6200B
Ethylbenzene 3210 50 20 ug/l SM 6200B
Isopropylbenzene 185 50 13 ug/l SM 6200B
p-Isopropyltoluene 27.7 J 50 13 ug/l SM 6200B
Methyl Chloride 25.4 J 50 6.6 ug/l SM 6200B
Naphthalene 756 50 10 ug/l SM 6200B
n-Propylbenzene 543 50 22 ug/l SM 6200B
Toluene 6800 50 29 ug/l SM 6200B
1,2,4-Trimethylbenzene a 5270 E 50 15 ug/l SM 6200B
1,3,5-Trimethylbenzene 1440 50 16 ug/l SM 6200B
m,p-Xylene a 16800 E 100 34 ug/l SM 6200B
o-Xylene a 6700 E 50 15 ug/l SM 6200B
Xylene (total) a 23500 E 50 16 ug/l SM 6200B
LA85217-2 MW-3
Benzene b 7470 E 25 14 ug/l SM 6200B
1,2-Dichloroethane c 443 10 6.1 ug/l SM 6200B
Di-Isopropyl Ether c 29.3 25 3.7 ug/l SM 6200B
Ethylbenzene b 6170 E 25 10 ug/l SM 6200B
Isopropylbenzene c 341 25 6.6 ug/l SM 6200B
p-Isopropyltoluene c 46.2 25 6.5 ug/l SM 6200B
Methyl Chloride c 86.3 25 3.3 ug/l SM 6200B
Naphthalene c 1560 25 5.0 ug/l SM 6200B
n-Propylbenzene c 985 25 11 ug/l SM 6200B
Toluene c 268 25 15 ug/l SM 6200B
1,2,3-Trichloropropane c 162 25 1.1 ug/l SM 6200B
1,2,4-Trimethylbenzene b 8000 E 25 7.3 ug/l SM 6200B
1,3,5-Trimethylbenzene c 2470 25 8.1 ug/l SM 6200B
m,p-Xylene b 11400 E 50 17 ug/l SM 6200B
o-Xylene b 5010 E 25 7.4 ug/l SM 6200B
Xylene (total) b 16400 E 25 8.1 ug/l SM 6200B
LA85217-3 TW-1
Acetone c 66.5 J 200 25 ug/l SM 6200B
Benzene c 3160 25 14 ug/l SM 6200B
1,2-Dichloroethane c 619 4.0 2.4 ug/l SM 6200B
1,2-Dichloropropane c 20.8 6.0 2.5 ug/l SM 6200B
4 of 37
LA852172
Summary of Hits Page 2 of 2
Job Number:LA85217
Account:Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Collected:11/09/22
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
Di-Isopropyl Ether c 44.8 10 1.5 ug/l SM 6200B
Ethylbenzene c 485 10 4.0 ug/l SM 6200B
Isopropylbenzene c 48.6 10 2.6 ug/l SM 6200B
Methyl Chloride c 54.0 10 1.3 ug/l SM 6200B
Methyl Tert Butyl Ether c 326 10 1.4 ug/l SM 6200B
Naphthalene c 101 10 2.0 ug/l SM 6200B
Toluene c 75.4 10 5.9 ug/l SM 6200B
1,2,4-Trimethylbenzene c 94.9 10 2.9 ug/l SM 6200B
1,3,5-Trimethylbenzene c 38.8 10 3.2 ug/l SM 6200B
Vinyl Chloride c 3.5 2.0 1.5 ug/l SM 6200B
m,p-Xylene c 243 20 6.7 ug/l SM 6200B
o-Xylene c 9.1 J 10 3.0 ug/l SM 6200B
Xylene (total) c 252 10 3.2 ug/l SM 6200B
LA85217-4 TW-2
Acetone c 16.4 J 50 6.2 ug/l SM 6200B
Benzene c 10.5 2.5 1.4 ug/l SM 6200B
Chloroethane c 5.6 2.5 0.28 ug/l SM 6200B
1,2-Dichloroethane c 353 1.0 0.61 ug/l SM 6200B
1,2-Dichloropropane c 1.7 1.5 0.63 ug/l SM 6200B
Di-Isopropyl Ether c 20.8 2.5 0.37 ug/l SM 6200B
Ethylbenzene c 7.1 2.5 1.0 ug/l SM 6200B
Isopropylbenzene c 2.4 J 2.5 0.66 ug/l SM 6200B
Methyl Chloride c 1.8 J 2.5 0.33 ug/l SM 6200B
Methyl Tert Butyl Ether c 131 2.5 0.34 ug/l SM 6200B
Naphthalene c 2.6 2.5 0.50 ug/l SM 6200B
(a) Insufficient hold time remains to resolve E-flagged compound.
(b) Sample analyzed beyond hold time. Insufficient hold time remains to resolve E-flagged compound.
(c) Sample analyzed beyond hold time.
5 of 37
LA852172
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
6 of 37
LA852173
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-1
Lab Sample ID:LA85217-1 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0145119.D 100 11/23/22 23:36 MB n/a n/a V2K4044
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 1000 120 ug/l
71-43-2 Benzene 6220 50 27 ug/l
108-86-1 Bromobenzene ND 50 18 ug/l
74-97-5 Bromochloromethane ND 50 12 ug/l
75-27-4 Bromodichloromethane ND 50 18 ug/l
75-25-2 Bromoform ND 50 10 ug/l
104-51-8 n-Butylbenzene 124 50 9.2 ug/l
135-98-8 sec-Butylbenzene ND 50 14 ug/l
98-06-6 tert-Butylbenzene ND 50 16 ug/l
56-23-5 Carbon Tetrachloride ND 20 9.2 ug/l
108-90-7 Chlorobenzene ND 50 16 ug/l
75-00-3 Chloroethane ND 50 5.5 ug/l
67-66-3 Chloroform ND 50 9.4 ug/l
95-49-8 o-Chlorotoluene ND 50 16 ug/l
106-43-4 p-Chlorotoluene ND 50 20 ug/l
124-48-1 Dibromochloromethane ND 20 7.5 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 50 13 ug/l
106-93-4 1,2-Dibromoethane ND 50 24 ug/l
75-71-8 Dichlorodifluoromethane ND 50 12 ug/l
541-73-1 m-Dichlorobenzene ND 50 6.3 ug/l
95-50-1 o-Dichlorobenzene ND 50 20 ug/l
106-46-7 p-Dichlorobenzene ND 50 22 ug/l
75-34-3 1,1-Dichloroethane ND 50 10 ug/l
107-06-2 1,2-Dichloroethane 241 20 12 ug/l
75-35-4 1,1-Dichloroethylene ND 50 9.4 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 50 11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 50 15 ug/l
78-87-5 1,2-Dichloropropane 19.9 30 13 ug/l J
142-28-9 1,3-Dichloropropane ND 50 21 ug/l
594-20-7 2,2-Dichloropropane ND 50 7.9 ug/l
563-58-6 1,1-Dichloropropene ND 50 12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 20 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
7 of 37
LA8521733.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-1
Lab Sample ID:LA85217-1 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 20 5.6 ug/l
108-20-3 Di-Isopropyl Ether 22.1 50 7.3 ug/l J
64-17-5 Ethyl Alcohol ND 5000 840 ug/l
100-41-4 Ethylbenzene 3210 50 20 ug/l
591-78-6 2-Hexanone ND 100 42 ug/l
87-68-3 Hexachlorobutadiene ND 20 11 ug/l
98-82-8 Isopropylbenzene 185 50 13 ug/l
99-87-6 p-Isopropyltoluene 27.7 50 13 ug/l J
74-83-9 Methyl Bromide ND 50 23 ug/l
74-87-3 Methyl Chloride 25.4 50 6.6 ug/l J
74-95-3 Methylene Bromide ND 50 11 ug/l
75-09-2 Methylene Chloride ND 50 8.0 ug/l
78-93-3 Methyl Ethyl Ketone ND 2500 28 ug/l
108-10-1 4-Methyl-2-pentanone ND 50 24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 50 6.8 ug/l
91-20-3 Naphthalene 756 50 10 ug/l
103-65-1 n-Propylbenzene 543 50 22 ug/l
100-42-5 Styrene ND 50 13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 50 18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 20 12 ug/l
127-18-4 Tetrachloroethylene ND 50 22 ug/l
108-88-3 Toluene 6800 50 29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 50 16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 50 17 ug/l
71-55-6 1,1,1-Trichloroethane ND 50 16 ug/l
79-00-5 1,1,2-Trichloroethane ND 30 17 ug/l
79-01-6 Trichloroethylene ND 50 18 ug/l
75-69-4 Trichlorofluoromethane ND 50 7.3 ug/l
96-18-4 1,2,3-Trichloropropane ND 50 2.3 ug/l
95-63-6 1,2,4-Trimethylbenzene a 5270 50 15 ug/l E
108-67-8 1,3,5-Trimethylbenzene 1440 50 16 ug/l
108-05-4 Vinyl Acetate ND 50 6.9 ug/l
75-01-4 Vinyl Chloride ND 10 7.5 ug/l
m,p-Xylene a 16800 100 34 ug/l E
95-47-6 o-Xylene a 6700 50 15 ug/l E
1330-20-7 Xylene (total) a 23500 50 16 ug/l E
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 95%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 37
LA8521733.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-1
Lab Sample ID:LA85217-1 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 106%70-130%
460-00-4 4-Bromofluorobenzene 113%70-130%
(a) Insufficient hold time remains to resolve E-flagged compound.
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 37
LA8521733.1
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-3
Lab Sample ID:LA85217-2 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a 2K0145120.D 50 11/24/22 00:06 MB n/a n/a V2K4044
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 500 62 ug/l
71-43-2 Benzene b 7470 25 14 ug/l E
108-86-1 Bromobenzene ND 25 9.1 ug/l
74-97-5 Bromochloromethane ND 25 6.1 ug/l
75-27-4 Bromodichloromethane ND 25 9.0 ug/l
75-25-2 Bromoform ND 25 5.0 ug/l
104-51-8 n-Butylbenzene ND 25 4.6 ug/l
135-98-8 sec-Butylbenzene ND 25 7.1 ug/l
98-06-6 tert-Butylbenzene ND 25 7.9 ug/l
56-23-5 Carbon Tetrachloride ND 10 4.6 ug/l
108-90-7 Chlorobenzene ND 25 8.2 ug/l
75-00-3 Chloroethane ND 25 2.8 ug/l
67-66-3 Chloroform ND 25 4.7 ug/l
95-49-8 o-Chlorotoluene ND 25 8.2 ug/l
106-43-4 p-Chlorotoluene ND 25 10 ug/l
124-48-1 Dibromochloromethane ND 10 3.7 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 25 6.4 ug/l
106-93-4 1,2-Dibromoethane ND 25 12 ug/l
75-71-8 Dichlorodifluoromethane ND 25 6.1 ug/l
541-73-1 m-Dichlorobenzene ND 25 3.2 ug/l
95-50-1 o-Dichlorobenzene ND 25 9.8 ug/l
106-46-7 p-Dichlorobenzene ND 25 11 ug/l
75-34-3 1,1-Dichloroethane ND 25 5.2 ug/l
107-06-2 1,2-Dichloroethane 443 10 6.1 ug/l
75-35-4 1,1-Dichloroethylene ND 25 4.7 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 25 5.5 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 25 7.7 ug/l
78-87-5 1,2-Dichloropropane ND 15 6.3 ug/l
142-28-9 1,3-Dichloropropane ND 25 10 ug/l
594-20-7 2,2-Dichloropropane ND 25 4.0 ug/l
563-58-6 1,1-Dichloropropene ND 25 5.8 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 10 5.1 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
10 of 37
LA8521733.2
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-3
Lab Sample ID:LA85217-2 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 10 2.8 ug/l
108-20-3 Di-Isopropyl Ether 29.3 25 3.7 ug/l
64-17-5 Ethyl Alcohol ND 2500 420 ug/l
100-41-4 Ethylbenzene b 6170 25 10 ug/l E
591-78-6 2-Hexanone ND 50 21 ug/l
87-68-3 Hexachlorobutadiene ND 10 5.5 ug/l
98-82-8 Isopropylbenzene 341 25 6.6 ug/l
99-87-6 p-Isopropyltoluene 46.2 25 6.5 ug/l
74-83-9 Methyl Bromide ND 25 11 ug/l
74-87-3 Methyl Chloride 86.3 25 3.3 ug/l
74-95-3 Methylene Bromide ND 25 5.7 ug/l
75-09-2 Methylene Chloride ND 25 4.0 ug/l
78-93-3 Methyl Ethyl Ketone ND 1300 14 ug/l
108-10-1 4-Methyl-2-pentanone ND 25 12 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 25 3.4 ug/l
91-20-3 Naphthalene 1560 25 5.0 ug/l
103-65-1 n-Propylbenzene 985 25 11 ug/l
100-42-5 Styrene ND 25 6.3 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 25 9.2 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 10 6.2 ug/l
127-18-4 Tetrachloroethylene ND 25 11 ug/l
108-88-3 Toluene 268 25 15 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 25 8.0 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 25 8.5 ug/l
71-55-6 1,1,1-Trichloroethane ND 25 8.2 ug/l
79-00-5 1,1,2-Trichloroethane ND 15 8.7 ug/l
79-01-6 Trichloroethylene ND 25 9.0 ug/l
75-69-4 Trichlorofluoromethane ND 25 3.7 ug/l
96-18-4 1,2,3-Trichloropropane 162 25 1.1 ug/l
95-63-6 1,2,4-Trimethylbenzene b 8000 25 7.3 ug/l E
108-67-8 1,3,5-Trimethylbenzene 2470 25 8.1 ug/l
108-05-4 Vinyl Acetate ND 25 3.4 ug/l
75-01-4 Vinyl Chloride ND 5.0 3.8 ug/l
m,p-Xylene b 11400 50 17 ug/l E
95-47-6 o-Xylene b 5010 25 7.4 ug/l E
1330-20-7 Xylene (total) b 16400 25 8.1 ug/l E
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 104%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 37
LA8521733.2
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-3
Lab Sample ID:LA85217-2 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, 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%
(a) Sample analyzed beyond hold time.
(b) Insufficient hold time remains to resolve E-flagged compound.
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 37
LA8521733.2
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:TW-1
Lab Sample ID:LA85217-3 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a 2K0145121.D 20 11/24/22 00:36 MB n/a n/a V2K4044
Run #2 a 2K0145146.D 50 11/24/22 13:08 MB n/a n/a V2K4045
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone 66.5 200 25 ug/l J
71-43-2 Benzene 3160 b 25 14 ug/l
108-86-1 Bromobenzene ND 10 3.6 ug/l
74-97-5 Bromochloromethane ND 10 2.4 ug/l
75-27-4 Bromodichloromethane ND 10 3.6 ug/l
75-25-2 Bromoform ND 10 2.0 ug/l
104-51-8 n-Butylbenzene ND 10 1.8 ug/l
135-98-8 sec-Butylbenzene ND 10 2.8 ug/l
98-06-6 tert-Butylbenzene ND 10 3.2 ug/l
56-23-5 Carbon Tetrachloride ND 4.0 1.8 ug/l
108-90-7 Chlorobenzene ND 10 3.3 ug/l
75-00-3 Chloroethane ND 10 1.1 ug/l
67-66-3 Chloroform ND 10 1.9 ug/l
95-49-8 o-Chlorotoluene ND 10 3.3 ug/l
106-43-4 p-Chlorotoluene ND 10 4.0 ug/l
124-48-1 Dibromochloromethane ND 4.0 1.5 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 10 2.6 ug/l
106-93-4 1,2-Dibromoethane ND 10 4.7 ug/l
75-71-8 Dichlorodifluoromethane ND 10 2.4 ug/l
541-73-1 m-Dichlorobenzene ND 10 1.3 ug/l
95-50-1 o-Dichlorobenzene ND 10 3.9 ug/l
106-46-7 p-Dichlorobenzene ND 10 4.3 ug/l
75-34-3 1,1-Dichloroethane ND 10 2.1 ug/l
107-06-2 1,2-Dichloroethane 619 4.0 2.4 ug/l
75-35-4 1,1-Dichloroethylene ND 10 1.9 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 10 2.2 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 10 3.1 ug/l
78-87-5 1,2-Dichloropropane 20.8 6.0 2.5 ug/l
142-28-9 1,3-Dichloropropane ND 10 4.1 ug/l
594-20-7 2,2-Dichloropropane ND 10 1.6 ug/l
563-58-6 1,1-Dichloropropene ND 10 2.3 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 4.0 2.0 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
13 of 37
LA8521733.3
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:TW-1
Lab Sample ID:LA85217-3 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 4.0 1.1 ug/l
108-20-3 Di-Isopropyl Ether 44.8 10 1.5 ug/l
64-17-5 Ethyl Alcohol ND 1000 170 ug/l
100-41-4 Ethylbenzene 485 10 4.0 ug/l
591-78-6 2-Hexanone ND 20 8.4 ug/l
87-68-3 Hexachlorobutadiene ND 4.0 2.2 ug/l
98-82-8 Isopropylbenzene 48.6 10 2.6 ug/l
99-87-6 p-Isopropyltoluene ND 10 2.6 ug/l
74-83-9 Methyl Bromide ND 10 4.6 ug/l
74-87-3 Methyl Chloride 54.0 10 1.3 ug/l
74-95-3 Methylene Bromide ND 10 2.3 ug/l
75-09-2 Methylene Chloride ND 10 1.6 ug/l
78-93-3 Methyl Ethyl Ketone ND 500 5.7 ug/l
108-10-1 4-Methyl-2-pentanone ND 10 4.8 ug/l
1634-04-4 Methyl Tert Butyl Ether 326 10 1.4 ug/l
91-20-3 Naphthalene 101 10 2.0 ug/l
103-65-1 n-Propylbenzene ND 10 4.4 ug/l
100-42-5 Styrene ND 10 2.5 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 10 3.7 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 4.0 2.5 ug/l
127-18-4 Tetrachloroethylene ND 10 4.5 ug/l
108-88-3 Toluene 75.4 10 5.9 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 10 3.2 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 10 3.4 ug/l
71-55-6 1,1,1-Trichloroethane ND 10 3.3 ug/l
79-00-5 1,1,2-Trichloroethane ND 6.0 3.5 ug/l
79-01-6 Trichloroethylene ND 10 3.6 ug/l
75-69-4 Trichlorofluoromethane ND 10 1.5 ug/l
96-18-4 1,2,3-Trichloropropane ND 10 0.45 ug/l
95-63-6 1,2,4-Trimethylbenzene 94.9 10 2.9 ug/l
108-67-8 1,3,5-Trimethylbenzene 38.8 10 3.2 ug/l
108-05-4 Vinyl Acetate ND 10 1.4 ug/l
75-01-4 Vinyl Chloride 3.5 2.0 1.5 ug/l
m,p-Xylene 243 20 6.7 ug/l
95-47-6 o-Xylene 9.1 10 3.0 ug/l J
1330-20-7 Xylene (total)252 10 3.2 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 108%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
14 of 37
LA8521733.3
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:TW-1
Lab Sample ID:LA85217-3 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 107%102%70-130%
460-00-4 4-Bromofluorobenzene 108%102%70-130%
(a) Sample analyzed beyond hold time.
(b) Result is from Run# 2
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 37
LA8521733.3
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:TW-2
Lab Sample ID:LA85217-4 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a 2K0145122.D 5 11/24/22 01:06 MB n/a n/a V2K4044
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 16.4 50 6.2 ug/l J
71-43-2 Benzene 10.5 2.5 1.4 ug/l
108-86-1 Bromobenzene ND 2.5 0.91 ug/l
74-97-5 Bromochloromethane ND 2.5 0.61 ug/l
75-27-4 Bromodichloromethane ND 2.5 0.90 ug/l
75-25-2 Bromoform ND 2.5 0.50 ug/l
104-51-8 n-Butylbenzene ND 2.5 0.46 ug/l
135-98-8 sec-Butylbenzene ND 2.5 0.71 ug/l
98-06-6 tert-Butylbenzene ND 2.5 0.79 ug/l
56-23-5 Carbon Tetrachloride ND 1.0 0.46 ug/l
108-90-7 Chlorobenzene ND 2.5 0.82 ug/l
75-00-3 Chloroethane 5.6 2.5 0.28 ug/l
67-66-3 Chloroform ND 2.5 0.47 ug/l
95-49-8 o-Chlorotoluene ND 2.5 0.82 ug/l
106-43-4 p-Chlorotoluene ND 2.5 1.0 ug/l
124-48-1 Dibromochloromethane ND 1.0 0.37 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 2.5 0.64 ug/l
106-93-4 1,2-Dibromoethane ND 2.5 1.2 ug/l
75-71-8 Dichlorodifluoromethane ND 2.5 0.61 ug/l
541-73-1 m-Dichlorobenzene ND 2.5 0.32 ug/l
95-50-1 o-Dichlorobenzene ND 2.5 0.98 ug/l
106-46-7 p-Dichlorobenzene ND 2.5 1.1 ug/l
75-34-3 1,1-Dichloroethane ND 2.5 0.52 ug/l
107-06-2 1,2-Dichloroethane 353 1.0 0.61 ug/l
75-35-4 1,1-Dichloroethylene ND 2.5 0.47 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 2.5 0.55 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 2.5 0.77 ug/l
78-87-5 1,2-Dichloropropane 1.7 1.5 0.63 ug/l
142-28-9 1,3-Dichloropropane ND 2.5 1.0 ug/l
594-20-7 2,2-Dichloropropane ND 2.5 0.40 ug/l
563-58-6 1,1-Dichloropropene ND 2.5 0.58 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 1.0 0.51 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
16 of 37
LA8521733.4
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:TW-2
Lab Sample ID:LA85217-4 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 1.0 0.28 ug/l
108-20-3 Di-Isopropyl Ether 20.8 2.5 0.37 ug/l
64-17-5 Ethyl Alcohol ND 250 42 ug/l
100-41-4 Ethylbenzene 7.1 2.5 1.0 ug/l
591-78-6 2-Hexanone ND 5.0 2.1 ug/l
87-68-3 Hexachlorobutadiene ND 1.0 0.55 ug/l
98-82-8 Isopropylbenzene 2.4 2.5 0.66 ug/l J
99-87-6 p-Isopropyltoluene ND 2.5 0.65 ug/l
74-83-9 Methyl Bromide ND 2.5 1.1 ug/l
74-87-3 Methyl Chloride 1.8 2.5 0.33 ug/l J
74-95-3 Methylene Bromide ND 2.5 0.57 ug/l
75-09-2 Methylene Chloride ND 2.5 0.40 ug/l
78-93-3 Methyl Ethyl Ketone ND 130 1.4 ug/l
108-10-1 4-Methyl-2-pentanone ND 2.5 1.2 ug/l
1634-04-4 Methyl Tert Butyl Ether 131 2.5 0.34 ug/l
91-20-3 Naphthalene 2.6 2.5 0.50 ug/l
103-65-1 n-Propylbenzene ND 2.5 1.1 ug/l
100-42-5 Styrene ND 2.5 0.63 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 2.5 0.92 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 1.0 0.62 ug/l
127-18-4 Tetrachloroethylene ND 2.5 1.1 ug/l
108-88-3 Toluene ND 2.5 1.5 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 2.5 0.80 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 2.5 0.85 ug/l
71-55-6 1,1,1-Trichloroethane ND 2.5 0.82 ug/l
79-00-5 1,1,2-Trichloroethane ND 1.5 0.87 ug/l
79-01-6 Trichloroethylene ND 2.5 0.90 ug/l
75-69-4 Trichlorofluoromethane ND 2.5 0.37 ug/l
96-18-4 1,2,3-Trichloropropane ND 2.5 0.11 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 2.5 0.73 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 2.5 0.81 ug/l
108-05-4 Vinyl Acetate ND 2.5 0.34 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.38 ug/l
m,p-Xylene ND 5.0 1.7 ug/l
95-47-6 o-Xylene ND 2.5 0.74 ug/l
1330-20-7 Xylene (total)ND 2.5 0.81 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
17 of 37
LA8521733.4
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:TW-2
Lab Sample ID:LA85217-4 Date Sampled:11/09/22
Matrix:AQ - Ground Water Date Received:11/11/22
Method:SM 6200B Percent Solids:n/a
Project:Hardy Gulf 484 Carthage St, Cameron, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 115%70-130%
460-00-4 4-Bromofluorobenzene 102%70-130%
(a) Sample analyzed beyond hold time.
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 37
LA8521733.4
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 4
19 of 37
LA852174
LA85217: Chain of Custody
Page 1 of 5
20 of 37
LA8521744.1
LA85217: Chain of Custody
Page 2 of 5
21 of 37
LA8521744.1
LA85217: Chain of Custody
Page 3 of 5
22 of 37
LA8521744.1
Job Number:LA85217 Client:ATC
Date / Time Received:11/11/2022 9:50:00 AM Delivery Method:
Project:HARDY GULF
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:
IR001;
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: (1.6/1.6);
SGS Sample Receipt Summary
LA85217: Chain of Custody
Page 4 of 5
23 of 37
LA8521744.1
Page 2 of 2
Problem Resolution
CSR:Response Date:
Response:
Job Number:LA85217
LA85217: Chain of Custody
Page 5 of 5
24 of 37
LA8521744.1
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 37
LA852175
Method Blank Summary Page 1 of 3
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4044-MB1 2K0145116.D 1 11/23/22 MB n/a n/a V2K4044
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-1, LA85217-2, LA85217-3, LA85217-4
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 37
LA8521755.1.1
Method Blank Summary Page 2 of 3
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4044-MB1 2K0145116.D 1 11/23/22 MB n/a n/a V2K4044
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-1, LA85217-2, LA85217-3, LA85217-4
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 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 0.24 0.50 0.10 ug/l J
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 0.25 0.50 0.16 ug/l J
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 37
LA8521755.1.1
Method Blank Summary Page 3 of 3
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4044-MB1 2K0145116.D 1 11/23/22 MB n/a n/a V2K4044
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-1, LA85217-2, LA85217-3, LA85217-4
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 96%70-130%
2037-26-5 Toluene-D8 102%70-130%
460-00-4 4-Bromofluorobenzene 103%70-130%
28 of 37
LA8521755.1.1
Method Blank Summary Page 1 of 1
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4045-MB1 2K0145144.D 1 11/24/22 MB n/a n/a V2K4045
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-3
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.27 ug/l
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 91%70-130%
2037-26-5 Toluene-D8 103%70-130%
460-00-4 4-Bromofluorobenzene 99%70-130%
29 of 37
LA8521755.1.2
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4044-BS1 2K0145113.D 1 11/23/22 MB n/a n/a V2K4044
V2K4044-BSD1 2K0145114.D 1 11/23/22 MB n/a n/a V2K4044
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-1, LA85217-2, LA85217-3, LA85217-4
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 44.1 88 44.8 90 2 70-130/30
71-43-2 Benzene 20 19.0 95 19.3 97 2 70-130/30
108-86-1 Bromobenzene 20 19.6 98 20.4 102 4 70-130/30
74-97-5 Bromochloromethane 20 19.2 96 20.5 103 7 70-130/30
75-27-4 Bromodichloromethane 20 21.8 109 22.1 111 1 70-130/30
75-25-2 Bromoform 20 18.4 92 19.6 98 6 70-130/30
104-51-8 n-Butylbenzene 20 22.6 113 23.3 117 3 70-130/30
135-98-8 sec-Butylbenzene 20 21.8 109 22.3 112 2 70-130/30
98-06-6 tert-Butylbenzene 20 20.3 102 20.9 105 3 70-130/30
56-23-5 Carbon Tetrachloride 20 21.1 106 21.8 109 3 70-130/30
108-90-7 Chlorobenzene 20 19.7 99 20.3 102 3 70-130/30
75-00-3 Chloroethane 20 18.3 92 18.9 95 3 60-140/30
67-66-3 Chloroform 20 20.6 103 22.0 110 7 70-130/30
95-49-8 o-Chlorotoluene 20 19.4 97 20.0 100 3 70-130/30
106-43-4 p-Chlorotoluene 20 21.1 106 21.3 107 1 70-130/30
124-48-1 Dibromochloromethane 20 23.2 116 24.2 121 4 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 18.7 94 20.4 102 9 70-130/30
106-93-4 1,2-Dibromoethane 20 20.1 101 21.4 107 6 70-130/30
75-71-8 Dichlorodifluoromethane 20 19.8 99 20.7 104 4 60-140/30
541-73-1 m-Dichlorobenzene 20 19.4 97 19.8 99 2 70-130/30
95-50-1 o-Dichlorobenzene 20 18.2 91 19.2 96 5 70-130/30
106-46-7 p-Dichlorobenzene 20 20.4 102 21.3 107 4 70-130/30
75-34-3 1,1-Dichloroethane 20 19.4 97 20.0 100 3 70-130/30
107-06-2 1,2-Dichloroethane 20 19.6 98 20.5 103 4 70-130/30
75-35-4 1,1-Dichloroethylene 20 20.4 102 20.7 104 1 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 19.6 98 20.5 103 4 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 19.6 98 19.9 100 2 70-130/30
78-87-5 1,2-Dichloropropane 20 19.5 98 19.8 99 2 70-130/30
142-28-9 1,3-Dichloropropane 20 20.0 100 20.5 103 2 70-130/30
594-20-7 2,2-Dichloropropane 20 20.9 105 20.6 103 1 70-130/30
563-58-6 1,1-Dichloropropene 20 21.0 105 21.6 108 3 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 19.9 100 20.5 103 3 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 22.9 115 23.8 119 4 70-130/30
108-20-3 Di-Isopropyl Ether 20 20.1 101 20.4 102 1 70-130/30
64-17-5 Ethyl Alcohol 400 293 73 358 90 20 70-130/30
100-41-4 Ethylbenzene 20 21.9 110 22.8 114 4 70-130/30
* = Outside of Control Limits.
30 of 37
LA8521755.2.1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4044-BS1 2K0145113.D 1 11/23/22 MB n/a n/a V2K4044
V2K4044-BSD1 2K0145114.D 1 11/23/22 MB n/a n/a V2K4044
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-1, LA85217-2, LA85217-3, LA85217-4
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
591-78-6 2-Hexanone 50 51.5 103 56.4 113 9 70-130/30
87-68-3 Hexachlorobutadiene 20 21.1 106 21.6 108 2 70-130/30
98-82-8 Isopropylbenzene 20 20.8 104 21.6 108 4 70-130/30
99-87-6 p-Isopropyltoluene 20 18.3 92 19.0 95 4 70-130/30
74-83-9 Methyl Bromide 20 19.3 97 19.8 99 3 60-140/30
74-87-3 Methyl Chloride 20 21.0 105 21.2 106 1 60-140/30
74-95-3 Methylene Bromide 20 19.3 97 19.6 98 2 70-130/30
75-09-2 Methylene Chloride 20 20.1 101 20.0 100 0 70-130/30
78-93-3 Methyl Ethyl Ketone 50 47.8 96 48.7 97 2 70-130/30
108-10-1 4-Methyl-2-pentanone 50 46.0 92 46.2 92 0 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 18.2 91 14.5 73 23 70-130/30
91-20-3 Naphthalene 20 20.5 103 20.6 103 0 70-130/30
103-65-1 n-Propylbenzene 20 20.1 101 20.9 105 4 70-130/30
100-42-5 Styrene 20 21.5 108 22.5 113 5 70-130/30
630-20-6 1,1,1,2-Tetrachloroethane 20 22.3 112 23.3 117 4 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 19.2 96 19.7 99 3 70-130/30
127-18-4 Tetrachloroethylene 20 20.4 102 20.6 103 1 70-130/30
108-88-3 Toluene 20 19.3 97 19.9 100 3 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 20.6 103 20.9 105 1 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 19.2 96 20.4 102 6 70-130/30
71-55-6 1,1,1-Trichloroethane 20 21.6 108 22.3 112 3 70-130/30
79-00-5 1,1,2-Trichloroethane 20 19.0 95 19.7 99 4 70-130/30
79-01-6 Trichloroethylene 20 20.6 103 21.2 106 3 70-130/30
75-69-4 Trichlorofluoromethane 20 18.4 92 19.0 95 3 60-140/30
96-18-4 1,2,3-Trichloropropane 20 19.7 99 19.9 100 1 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 20.1 101 20.6 103 2 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 21.9 110 22.4 112 2 70-130/30
108-05-4 Vinyl Acetate 20 18.8 94 19.4 97 3 70-130/30
75-01-4 Vinyl Chloride 20 18.7 94 18.9 95 1 60-140/30
m,p-Xylene 40 42.8 107 44.6 112 4 70-130/30
95-47-6 o-Xylene 20 20.1 101 21.1 106 5 70-130/30
1330-20-7 Xylene (total)60 62.9 105 65.7 110 4 70-130/30
* = Outside of Control Limits.
31 of 37
LA8521755.2.1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4044-BS1 2K0145113.D 1 11/23/22 MB n/a n/a V2K4044
V2K4044-BSD1 2K0145114.D 1 11/23/22 MB n/a n/a V2K4044
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-1, LA85217-2, LA85217-3, LA85217-4
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 101%104%70-130%
2037-26-5 Toluene-D8 102%103%70-130%
460-00-4 4-Bromofluorobenzene 102%103%70-130%
* = Outside of Control Limits.
32 of 37
LA8521755.2.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 1
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4045-BS1 2K0145141.D 1 11/24/22 MB n/a n/a V2K4045
V2K4045-BSD1 2K0145142.D 1 11/24/22 MB n/a n/a V2K4045
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-3
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
71-43-2 Benzene 20 19.3 97 18.5 93 4 70-130/30
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 93%96%70-130%
2037-26-5 Toluene-D8 104%104%70-130%
460-00-4 4-Bromofluorobenzene 104%98%70-130%
* = Outside of Control Limits.
33 of 37
LA8521755.2.2
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA85217-4MS 2K0145135.D 50 11/24/22 MB n/a n/a V2K4044
LA85217-4MSD 2K0145136.D 50 11/24/22 MB n/a n/a V2K4044
LA85217-4 a 2K0145122.D 5 11/24/22 MB n/a n/a V2K4044
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-1, LA85217-2, LA85217-3, LA85217-4
LA85217-4 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 16.4 J 2500 1280 51* b 2500 1270 50* b 1 70-130/20
71-43-2 Benzene 10.5 1000 894 88 1000 902 89 1 70-130/20
108-86-1 Bromobenzene ND 1000 922 92 1000 973 97 5 70-130/20
74-97-5 Bromochloromethane ND 1000 867 87 1000 918 92 6 70-130/20
75-27-4 Bromodichloromethane ND 1000 937 94 1000 975 98 4 70-130/20
75-25-2 Bromoform ND 1000 834 83 1000 860 86 3 70-130/20
104-51-8 n-Butylbenzene ND 1000 958 96 1000 999 100 4 70-130/20
135-98-8 sec-Butylbenzene ND 1000 973 97 1000 1010 101 4 70-130/20
98-06-6 tert-Butylbenzene ND 1000 991 99 1000 1020 102 3 70-130/20
56-23-5 Carbon Tetrachloride ND 1000 928 93 1000 959 96 3 70-130/20
108-90-7 Chlorobenzene ND 1000 893 89 1000 945 95 6 70-130/20
75-00-3 Chloroethane 5.6 1000 965 96 1000 931 93 4 60-140/20
67-66-3 Chloroform ND 1000 930 93 1000 966 97 4 70-130/20
95-49-8 o-Chlorotoluene ND 1000 886 89 1000 934 93 5 70-130/20
106-43-4 p-Chlorotoluene ND 1000 951 95 1000 975 98 2 70-130/20
124-48-1 Dibromochloromethane ND 1000 1050 105 1000 1130 113 7 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 1000 825 83 1000 883 88 7 70-130/20
106-93-4 1,2-Dibromoethane ND 1000 947 95 1000 994 99 5 70-130/20
75-71-8 Dichlorodifluoromethane ND 1000 838 84 1000 895 90 7 60-140/20
541-73-1 m-Dichlorobenzene ND 1000 898 90 1000 918 92 2 70-130/20
95-50-1 o-Dichlorobenzene ND 1000 870 87 1000 884 88 2 70-130/20
106-46-7 p-Dichlorobenzene ND 1000 967 97 1000 983 98 2 70-130/20
75-34-3 1,1-Dichloroethane ND 1000 842 84 1000 879 88 4 70-130/20
107-06-2 1,2-Dichloroethane 353 1000 1220 87 1000 1280 93 5 70-130/20
75-35-4 1,1-Dichloroethylene ND 1000 993 99 1000 1000 100 1 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 1000 882 88 1000 908 91 3 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 1000 978 98 1000 971 97 1 70-130/20
78-87-5 1,2-Dichloropropane 1.7 1000 899 90 1000 911 91 1 70-130/20
142-28-9 1,3-Dichloropropane ND 1000 888 89 1000 955 96 7 70-130/20
594-20-7 2,2-Dichloropropane ND 1000 802 80 1000 885 89 10 70-130/20
563-58-6 1,1-Dichloropropene ND 1000 913 91 1000 961 96 5 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 1000 871 87 1000 911 91 4 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 1000 995 100 1000 1080 108 8 70-130/20
108-20-3 Di-Isopropyl Ether 20.8 1000 903 88 1000 946 93 5 70-130/20
64-17-5 Ethyl Alcohol ND 20000 20200 101 20000 15200 76 28* b 70-130/20
100-41-4 Ethylbenzene 7.1 1000 978 97 1000 1060 105 8 70-130/20
* = Outside of Control Limits.
34 of 37
LA8521755.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA85217-4MS 2K0145135.D 50 11/24/22 MB n/a n/a V2K4044
LA85217-4MSD 2K0145136.D 50 11/24/22 MB n/a n/a V2K4044
LA85217-4 a 2K0145122.D 5 11/24/22 MB n/a n/a V2K4044
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-1, LA85217-2, LA85217-3, LA85217-4
LA85217-4 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 2500 2210 88 2500 2350 94 6 70-130/20
87-68-3 Hexachlorobutadiene ND 1000 915 92 1000 983 98 7 70-130/20
98-82-8 Isopropylbenzene 2.4 J 1000 957 95 1000 1000 100 4 70-130/20
99-87-6 p-Isopropyltoluene ND 1000 831 83 1000 858 86 3 70-130/20
74-83-9 Methyl Bromide ND 1000 513 51* b 1000 724 72 34* b 60-140/20
74-87-3 Methyl Chloride 1.8 J 1000 902 90 1000 929 93 3 60-140/20
74-95-3 Methylene Bromide ND 1000 917 92 1000 918 92 0 70-130/20
75-09-2 Methylene Chloride ND 1000 1020 102 1000 1020 102 0 70-130/20
78-93-3 Methyl Ethyl Ketone ND 2500 1960 78 2500 1930 77 2 70-130/20
108-10-1 4-Methyl-2-pentanone ND 2500 2130 85 2500 2100 84 1 70-130/20
1634-04-4 Methyl Tert Butyl Ether 131 1000 1050 92 1000 992 86 6 70-130/20
91-20-3 Naphthalene 2.6 1000 918 92 1000 963 96 5 70-130/20
103-65-1 n-Propylbenzene ND 1000 921 92 1000 931 93 1 70-130/20
100-42-5 Styrene ND 1000 973 97 1000 1050 105 8 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 1000 1010 101 1000 1050 105 4 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 1000 926 93 1000 955 96 3 70-130/20
127-18-4 Tetrachloroethylene ND 1000 692 69* b 1000 680 68* b 2 70-130/20
108-88-3 Toluene ND 1000 887 89 1000 935 94 5 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 1000 941 94 1000 950 95 1 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 1000 875 88 1000 932 93 6 70-130/20
71-55-6 1,1,1-Trichloroethane ND 1000 974 97 1000 989 99 2 70-130/20
79-00-5 1,1,2-Trichloroethane ND 1000 896 90 1000 929 93 4 70-130/20
79-01-6 Trichloroethylene ND 1000 919 92 1000 960 96 4 70-130/20
75-69-4 Trichlorofluoromethane ND 1000 936 94 1000 925 93 1 60-140/20
96-18-4 1,2,3-Trichloropropane ND 1000 901 90 1000 937 94 4 70-130/20
95-63-6 1,2,4-Trimethylbenzene ND 1000 911 91 1000 954 95 5 70-130/20
108-67-8 1,3,5-Trimethylbenzene ND 1000 1000 100 1000 1040 104 4 70-130/20
108-05-4 Vinyl Acetate ND 1000 878 88 1000 939 94 7 70-130/20
75-01-4 Vinyl Chloride ND 1000 895 90 1000 872 87 3 60-140/20
m,p-Xylene ND 2000 1950 98 2000 2050 103 5 70-130/20
95-47-6 o-Xylene ND 1000 927 93 1000 967 97 4 70-130/20
1330-20-7 Xylene (total)ND 3000 2880 96 3000 3020 101 5 70-130/20
* = Outside of Control Limits.
35 of 37
LA8521755.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA85217-4MS 2K0145135.D 50 11/24/22 MB n/a n/a V2K4044
LA85217-4MSD 2K0145136.D 50 11/24/22 MB n/a n/a V2K4044
LA85217-4 a 2K0145122.D 5 11/24/22 MB n/a n/a V2K4044
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-1, LA85217-2, LA85217-3, LA85217-4
CAS No.Surrogate Recoveries MS MSD LA85217-4 Limits
17060-07-0 1,2-Dichloroethane-D4 103%98%94%70-130%
2037-26-5 Toluene-D8 100%102%115%70-130%
460-00-4 4-Bromofluorobenzene 100%104%102%70-130%
(a) Sample analyzed beyond hold time.
(b) Outside control limits due to matrix interference. Blank Spike meets acceptance criteria.
* = Outside of Control Limits.
36 of 37
LA8521755.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1
Job Number:LA85217
Account:ATCNCR Atlas
Project:Hardy Gulf 484 Carthage St, Cameron, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA85288-3MS 2K0145162.D 20 11/24/22 MB n/a n/a V2K4045
LA85288-3MSD 2K0145163.D 20 11/24/22 MB n/a n/a V2K4045
LA85288-3 2K0145149.D 10 11/24/22 MB n/a n/a V2K4045
The QC reported here applies to the following samples:Method: SM 6200B
LA85217-3
LA85288-3 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 632 400 986 89 400 1020 97 3 70-130/20
CAS No.Surrogate Recoveries MS MSD LA85288-3 Limits
17060-07-0 1,2-Dichloroethane-D4 94%97%104%70-130%
2037-26-5 Toluene-D8 102%101%103%70-130%
460-00-4 4-Bromofluorobenzene 100%101%98%70-130%
* = Outside of Control Limits.
37 of 37
LA8521755.3.2