WS-7265_30671_CA_WSW_20230428_WW36-Results

04/27/23
Technical Report for
Atlas
Pantry 161 1031 Hwy 87 N, Elon College, NC
PANT1612023
SGS Job Number: LA89956
Sampling Date: 04/19/23
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
Kesavalu Bagawandoss
General Manager
Scott, LA 04/27/23
e-Hardcopy 2.0
Automated Report
19
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.
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1 of 19
LA89956
Table of Contents
-1-
Sections:
Section 1: Sample Summary ................................................................................................... 3
Section 2: Summary of Hits .................................................................................................... 4
Section 3: Sample Results ........................................................................................................5
3.1: LA89956-1: WW36 ...................................................................................................... 6
Section 4: Misc. Forms ............................................................................................................9
4.1: Chain of Custody ........................................................................................................... 10
Section 5: MS Volatiles - QC Data Summaries ..................................................................... 13
5.1: Method Blank Summary ................................................................................................ 14
5.2: Blank Spike/Blank Spike Duplicate Summary .............................................................. 17 123452 of 19
LA89956
SGS North America Inc.
Sample Summary
Atlas
Job No:LA89956
Pantry 161 1031 Hwy 87 N, Elon College, NC
Project No: PANT1612023
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
LA89956-1 04/19/23 10:50 BB 04/25/23 AQ Water WW36
3 of 19
LA899561
Summary of Hits Page 1 of 1
Job Number:LA89956
Account:Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Collected:04/19/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA89956-1 WW36
Di-Isopropyl Ether 0.55 0.50 0.073 ug/l SM 6200B
Methyl Tert Butyl Ether 0.78 0.50 0.068 ug/l SM 6200B
Toluene 0.75 0.50 0.29 ug/l SM 6200B
4 of 19
LA899562
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
5 of 19
LA899563
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:WW36
Lab Sample ID:LA89956-1 Date Sampled:04/19/23
Matrix:AQ - Water Date Received:04/25/23
Method:SM 6200B Percent Solids:n/a
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0145997.D 1 04/26/23 13:21 MB n/a n/a V2K4086
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
a ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
6 of 19
LA8995633.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:WW36
Lab Sample ID:LA89956-1 Date Sampled:04/19/23
Matrix:AQ - Water Date Received:04/25/23
Method:SM 6200B Percent Solids:n/a
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
VOA Special List
CAS No. Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether 0.55 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
637-92-3 Ethyl Tert-Butyl Ether ND 0.50 0.056 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether 0.78 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
75-85-4 Tert-Amyl Alcohol
b ND 25 0.77 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 1.0 0.084 ug/l
75-65-0 Tert-Butyl Alcohol ND 10 1.0 ug/l
762-75-4 tert-Butyl Formate ND 5.0 0.035 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 0.75 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
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 19
LA8995633.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:WW36
Lab Sample ID:LA89956-1 Date Sampled:04/19/23
Matrix:AQ - Water Date Received:04/25/23
Method:SM 6200B Percent Solids:n/a
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
VOA Special List
CAS No. Compound Result RL MDL Units Q
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 102%70-130%
2037-26-5 Toluene-D8 104%70-130%
460-00-4 4-Bromofluorobenzene 101%70-130%
(a) CCV recovery was above method acceptance criteria. No compounds detected above client requested RLs.
(b) Associated CCV outside of control limits high, sample was ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
8 of 19
LA8995633.1
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 4
9 of 19
LA899564
CHAIN OF CUSTODY PAGE I or
SGS l{orth Amorica lnc. - Scott
500 Ambassador Caffery Pa*way, Scon, LA 70583
TEL.[phone] FAX: [phone]
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LA89956: Chain of Custody
Page 1 of 3
10 of 19
LA8995644.1
-tslillPLERcr,rrvIfrU'''o;Gs scoTT LA LABORATORYr(ts coMMISSION BLVD'JTAYETTE LA 705081,,i- 1f75\oo$E--utrrlItlllilIilillillllllllll I I ll llll lllil lllllllllllI llledExExpla..TUE -PRIORIAFROllTBNIGHT70508LA-u8 LFT11ol 31707 9051 1947L rrR *rr## MA8tLFTAXHillilffiiltilffilt[wlr\'lJe<--\\i\J=-{1-)1Et:iIc{t0201<)oLA89956: Chain of Custody
Page 2 of 3
11 of 19
LA8995644.1
SGS Sample Receipt Summary
Job Number:LA89956 Client:ATC
Date / Time Received:4/25/2023 9:50:00 AM Delivery Method:FEDEX
Project:PANTRY #161
4. No. Coolers:1
Airbill #'s:570790511947
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: (1.8/1.6);
LA89956: Chain of Custody
Page 3 of 3
12 of 19
LA8995644.1
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
13 of 19
LA899565
Method Blank Summary Page 1 of 3
Job Number:LA89956
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4086-MB1 2K0145996.D 1 04/26/23 MB n/a n/a V2K4086
The QC reported here applies to the following samples:Method: SM 6200B
LA89956-1
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
14 of 19
LA8995655.1.1
Method Blank Summary Page 2 of 3
Job Number:LA89956
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4086-MB1 2K0145996.D 1 04/26/23 MB n/a n/a V2K4086
The QC reported here applies to the following samples:Method: SM 6200B
LA89956-1
CAS No. Compound Result RL MDL Units Q
637-92-3 Ethyl Tert-Butyl Ether ND 0.50 0.056 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene 0.15 0.20 0.11 ug/l J
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
75-85-4 Tert-Amyl Alcohol ND 25 0.77 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 1.0 0.084 ug/l
75-65-0 Tert-Butyl Alcohol ND 10 1.0 ug/l
762-75-4 tert-Butyl Formate ND 5.0 0.035 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
15 of 19
LA8995655.1.1
Method Blank Summary Page 3 of 3
Job Number:LA89956
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4086-MB1 2K0145996.D 1 04/26/23 MB n/a n/a V2K4086
The QC reported here applies to the following samples:Method: SM 6200B
LA89956-1
CAS No. Compound Result RL MDL Units Q
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No. Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 104% 70-130%
2037-26-5 Toluene-D8 105% 70-130%
460-00-4 4-Bromofluorobenzene 105% 70-130%
16 of 19
LA8995655.1.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA89956
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4086-BS1 2K0145993.D 1 04/26/23 MB n/a n/a V2K4086
V2K4086-BSD1 2K0145994.D 1 04/26/23 MB n/a n/a V2K4086
The QC reported here applies to the following samples:Method: SM 6200B
LA89956-1
Spike BSP BSP BSD BSD Limits
CAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD
67-64-1 Acetone 50 71.7 143* a 68.1 136* a 5 70-130/30
71-43-2 Benzene 20 19.1 96 20.3 102 6 70-130/30
108-86-1 Bromobenzene 20 18.3 92 18.9 95 3 70-130/30
74-97-5 Bromochloromethane 20 23.1 116 23.0 115 0 70-130/30
75-27-4 Bromodichloromethane 20 23.0 115 24.3 122 5 70-130/30
75-25-2 Bromoform 20 19.5 98 20.0 100 3 70-130/30
104-51-8 n-Butylbenzene 20 21.8 109 22.0 110 1 70-130/30
135-98-8 sec-Butylbenzene 20 21.0 105 21.2 106 1 70-130/30
98-06-6 tert-Butylbenzene 20 20.6 103 20.8 104 1 70-130/30
56-23-5 Carbon Tetrachloride 20 23.0 115 23.9 120 4 70-130/30
108-90-7 Chlorobenzene 20 19.0 95 19.8 99 4 70-130/30
75-00-3 Chloroethane 20 21.9 110 21.8 109 0 60-140/30
67-66-3 Chloroform 20 20.5 103 20.8 104 1 70-130/30
95-49-8 o-Chlorotoluene 20 19.4 97 19.7 99 2 70-130/30
106-43-4 p-Chlorotoluene 20 20.4 102 20.6 103 1 70-130/30
124-48-1 Dibromochloromethane 20 19.9 100 20.7 104 4 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 20.4 102 19.5 98 5 70-130/30
106-93-4 1,2-Dibromoethane 20 21.4 107 22.0 110 3 70-130/30
75-71-8 Dichlorodifluoromethane 20 17.9 90 18.1 91 1 60-140/30
541-73-1 m-Dichlorobenzene 20 19.4 97 19.2 96 1 70-130/30
95-50-1 o-Dichlorobenzene 20 20.0 100 20.0 100 0 70-130/30
106-46-7 p-Dichlorobenzene 20 20.1 101 20.0 100 0 70-130/30
75-34-3 1,1-Dichloroethane 20 20.9 105 21.6 108 3 70-130/30
107-06-2 1,2-Dichloroethane 20 19.9 100 20.8 104 4 70-130/30
75-35-4 1,1-Dichloroethylene 20 20.6 103 21.9 110 6 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 20.3 102 21.0 105 3 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 20.4 102 21.1 106 3 70-130/30
78-87-5 1,2-Dichloropropane 20 20.3 102 21.2 106 4 70-130/30
142-28-9 1,3-Dichloropropane 20 20.4 102 20.7 104 1 70-130/30
594-20-7 2,2-Dichloropropane 20 23.7 119 24.8 124 5 70-130/30
563-58-6 1,1-Dichloropropene 20 21.7 109 22.1 111 2 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 25.5 128 26.9 135* a 5 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 24.9 125 25.9 130 4 70-130/30
108-20-3 Di-Isopropyl Ether 20 22.3 112 22.9 115 3 70-130/30
64-17-5 Ethyl Alcohol 400 673 168* a 572 143* a 16 70-130/30
100-41-4 Ethylbenzene 20 19.2 96 19.8 99 3 70-130/30
* = Outside of Control Limits.
17 of 19
LA8995655.2.1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA89956
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4086-BS1 2K0145993.D 1 04/26/23 MB n/a n/a V2K4086
V2K4086-BSD1 2K0145994.D 1 04/26/23 MB n/a n/a V2K4086
The QC reported here applies to the following samples:Method: SM 6200B
LA89956-1
Spike BSP BSP BSD BSD Limits
CAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD
637-92-3 Ethyl Tert-Butyl Ether 20 22.3 112 22.8 114 2 70-130/30
591-78-6 2-Hexanone 50 58.0 116 58.0 116 0 70-130/30
87-68-3 Hexachlorobutadiene 20 22.0 110 22.0 110 0 70-130/30
98-82-8 Isopropylbenzene 20 19.5 98 20.4 102 5 70-130/30
99-87-6 p-Isopropyltoluene 20 21.2 106 21.2 106 0 70-130/30
74-83-9 Methyl Bromide 20 17.4 87 18.3 92 5 60-140/30
74-87-3 Methyl Chloride 20 19.8 99 20.5 103 3 60-140/30
74-95-3 Methylene Bromide 20 21.0 105 22.2 111 6 70-130/30
75-09-2 Methylene Chloride 20 21.4 107 21.9 110 2 70-130/30
78-93-3 Methyl Ethyl Ketone 50 62.2 124 61.1 122 2 70-130/30
108-10-1 4-Methyl-2-pentanone 50 58.4 117 59.8 120 2 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 21.8 109 22.2 111 2 70-130/30
91-20-3 Naphthalene 20 23.7 119 23.1 116 3 70-130/30
103-65-1 n-Propylbenzene 20 20.0 100 20.2 101 1 70-130/30
100-42-5 Styrene 20 22.8 114 23.8 119 4 70-130/30
75-85-4 Tert-Amyl Alcohol 200 268 134 257 129 4 50-150/30
b
994-05-8 Tert-Amyl Methyl Ether 20 20.6 103 21.5 108 4 70-130/30
75-65-0 Tert-Butyl Alcohol 100 144 144* a 136 136* a 6 70-130/30
762-75-4 tert-Butyl Formate 20 17.0 85 17.8 89 5 50-150/30
b
630-20-6 1,1,1,2-Tetrachloroethane 20 21.5 108 22.4 112 4 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 22.8 114 21.8 109 4 70-130/30
127-18-4 Tetrachloroethylene 20 17.1 86 18.3 92 7 70-130/30
108-88-3 Toluene 20 19.3 97 20.1 101 4 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 21.6 108 20.9 105 3 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 22.5 113 22.6 113 0 70-130/30
71-55-6 1,1,1-Trichloroethane 20 22.1 111 23.0 115 4 70-130/30
79-00-5 1,1,2-Trichloroethane 20 20.5 103 20.8 104 1 70-130/30
79-01-6 Trichloroethylene 20 20.4 102 21.7 109 6 70-130/30
75-69-4 Trichlorofluoromethane 20 24.3 122 24.6 123 1 60-140/30
96-18-4 1,2,3-Trichloropropane 20 20.4 102 20.7 104 1 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 20.5 103 20.5 103 0 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 21.1 106 21.0 105 0 70-130/30
108-05-4 Vinyl Acetate 20 26.2 131* a 26.7 134* a 2 70-130/30
75-01-4 Vinyl Chloride 20 21.3 107 22.0 110 3 60-140/30
m,p-Xylene 40 40.6 102 42.2 106 4 70-130/30
95-47-6 o-Xylene 20 19.5 98 20.3 102 4 70-130/30
* = Outside of Control Limits.
18 of 19
LA8995655.2.1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA89956
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4086-BS1 2K0145993.D 1 04/26/23 MB n/a n/a V2K4086
V2K4086-BSD1 2K0145994.D 1 04/26/23 MB n/a n/a V2K4086
The QC reported here applies to the following samples:Method: SM 6200B
LA89956-1
Spike BSP BSP BSD BSD Limits
CAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD
1330-20-7 Xylene (total)60 60.1 100 62.5 104 4 70-130/30
CAS No. Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 102%104% 70-130%
2037-26-5 Toluene-D8 103%105% 70-130%
460-00-4 4-Bromofluorobenzene 96%101% 70-130%
(a) Outside control limits biased high. Analyte not detected in associated samples.
(b) Advisory control limits.
* = Outside of Control Limits.
19 of 19
LA8995655.2.1