MO-9324_40784_G_WSW_20230411_TSITOURISHREREQ

April 11, 2023

MEMORANDUM
TO: Dave Lilley, Environmental Toxicologist, Division of Waste Management, 1646 Mail Service Center, Raleigh, NC 27699-1646 (FAX [phone])
FROM: Brad Newton, Mooresville Regional Office, UST Section SUBJECT: Request for Health Risk Evaluation of Water Supply
Tracking ID: Incident Number: 40784 Enclosed please find the analytical results for a water sample collected on March 29, 2023, from the Tsitouris water supply well, identified as WSW-2 located at 569 Autumn Leaf Road, Troutman, Iredell County. Please perform a health risk evaluation and send the evaluation with your recommendation and a copy of this memo to me. I will then forward the health risk evaluation and recommendation to any well users. If you have questions or need additional information, please contact me at the address or telephone number below. Thank you for your assistance.
Attachment(s): Mitchell Sample Analytical Results
Client Sample Results
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
Lab Sample ID: 400-235334-4Client Sample ID: WSW2
Matrix: WaterDate Collected: 03/29/23 11:50
Date Received: 03/31/23 09:09
Method: SM6200-B - Volatile Organic Compounds
RL MDL
0.160 U 1.00 0.160 ug/L 04/05/23 13:06 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1,1,1,2-Tetrachloroethane
1.00 0.180 ug/L 04/05/23 13:06 10.180 U1,1,1-Trichloroethane
1.00 0.500 ug/L 04/05/23 13:06 10.500 U1,1,2,2-Tetrachloroethane
5.00 0.210 ug/L 04/05/23 13:06 10.210 U1,1,2-Trichloroethane
1.00 0.500 ug/L 04/05/23 13:06 10.500 U1,1-Dichloroethane
1.00 0.500 ug/L 04/05/23 13:06 10.500 U1,1-Dichloroethene
1.00 0.500 ug/L 04/05/23 13:06 10.500 U1,1-Dichloropropene
1.00 0.900 ug/L 04/05/23 13:06 10.900 U1,2,3-Trichlorobenzene
5.00 0.840 ug/L 04/05/23 13:06 10.840 U1,2,3-Trichloropropane
1.00 0.820 ug/L 04/05/23 13:06 10.820 U1,2,4-Trichlorobenzene
1.00 0.820 ug/L 04/05/23 13:06 10.820 U1,2,4-Trimethylbenzene
1.00 0.230 ug/L 04/05/23 13:06 10.230 U1,2-Dibromoethane (EDB)
1.00 0.500 ug/L 04/05/23 13:06 10.500 U1,2-Dichlorobenzene
1.00 0.190 ug/L 04/05/23 13:06 10.190 U1,2-Dichloroethane
1.00 0.500 ug/L 04/05/23 13:06 10.500 U1,2-Dichloropropane
1.00 0.560 ug/L 04/05/23 13:06 10.560 U1,3,5-Trimethylbenzene
1.00 0.540 ug/L 04/05/23 13:06 10.540 U1,3-Dichlorobenzene
1.00 0.500 ug/L 04/05/23 13:06 10.500 U1,3-Dichloropropane
1.00 0.640 ug/L 04/05/23 13:06 10.640 U1,4-Dichlorobenzene
1.00 0.500 ug/L 04/05/23 13:06 10.500 U2,2-Dichloropropane
25.0 2.60 ug/L 04/05/23 13:06 12.60 U2-Butanone (MEK)
1.00 0.570 ug/L 04/05/23 13:06 10.570 U2-Chlorotoluene
25.0 1.40 ug/L 04/05/23 13:06 11.40 U2-Hexanone
1.00 0.560 ug/L 04/05/23 13:06 10.560 U4-Chlorotoluene
25.0 1.80 ug/L 04/05/23 13:06 11.80 U4-Methyl-2-pentanone (MIBK)
25.0 10.0 ug/L 04/05/23 13:06 110.0 UAcetone
1.00 0.130 ug/L 04/05/23 13:06 10.271 JBenzene
1.00 0.540 ug/L 04/05/23 13:06 10.540 UBromobenzene
1.00 0.210 ug/L 04/05/23 13:06 10.210 UBromochloromethane
1.00 0.500 ug/L 04/05/23 13:06 10.500 UBromodichloromethane
5.00 0.250 ug/L 04/05/23 13:06 10.250 UBromoform
1.00 0.980 ug/L 04/05/23 13:06 10.980 UBromomethane
1.00 0.190 ug/L 04/05/23 13:06 10.190 UCarbon tetrachloride
1.00 0.150 ug/L 04/05/23 13:06 10.150 UChlorobenzene
1.00 0.760 ug/L 04/05/23 13:06 10.760 UChloroethane
1.00 1.00 ug/L 04/05/23 13:06 11.00 UChloroform
1.00 0.320 ug/L 04/05/23 13:06 10.320 UChloromethane
1.00 0.200 ug/L 04/05/23 13:06 10.200 Ucis-1,2-Dichloroethene
5.00 0.500 ug/L 04/05/23 13:06 10.500 Ucis-1,3-Dichloropropene
1.00 0.240 ug/L 04/05/23 13:06 10.240 UDibromochloromethane
1.00 0.850 ug/L 04/05/23 13:06 10.850 UDichlorodifluoromethane
1.00 0.200 ug/L 04/05/23 13:06 10.200 UDiisopropyl ether
100 24.0 ug/L 04/05/23 13:06 124.0 UEthanol
1.00 0.500 ug/L 04/05/23 13:06 10.500 UEthylbenzene
1.00 0.530 ug/L 04/05/23 13:06 10.530 UIsopropylbenzene
1.00 0.220 ug/L 04/05/23 13:06 10.220 UMethyl tert-butyl ether
5.00 3.00 ug/L 04/05/23 13:06 13.00 UMethylene Chloride
5.00 0.630 ug/L 04/05/23 13:06 10.630 Um-Xylene & p-Xylene
5.00 3.00 ug/L 04/05/23 13:06 13.00 UNaphthalene
Eurofins Pensacola
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Client Sample Results
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
Lab Sample ID: 400-235334-4Client Sample ID: WSW2
Matrix: WaterDate Collected: 03/29/23 11:50
Date Received: 03/31/23 09:09
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
0.760 U 1.00 0.760 ug/L 04/05/23 13:06 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
n-Butylbenzene
1.00 0.690 ug/L 04/05/23 13:06 10.690 UN-Propylbenzene
5.00 0.600 ug/L 04/05/23 13:06 10.600 Uo-Xylene
1.00 0.710 ug/L 04/05/23 13:06 10.710 Up-Cymene (p-Isopropyltoluene)
1.00 0.700 ug/L 04/05/23 13:06 10.700 Usec-Butylbenzene
1.00 1.00 ug/L 04/05/23 13:06 11.00 UStyrene
1.00 0.630 ug/L 04/05/23 13:06 10.630 Utert-Butylbenzene
1.00 0.900 ug/L 04/05/23 13:06 10.900 UTetrachloroethene
1.00 0.410 ug/L 04/05/23 13:06 10.410 UToluene
1.00 0.500 ug/L 04/05/23 13:06 10.500 Utrans-1,2-Dichloroethene
5.00 0.200 ug/L 04/05/23 13:06 10.200 Utrans-1,3-Dichloropropene
1.00 0.150 ug/L 04/05/23 13:06 10.150 UTrichloroethene
1.00 0.520 ug/L 04/05/23 13:06 10.520 UTrichlorofluoromethane
25.0 0.930 ug/L 04/05/23 13:06 10.930 UVinyl acetate
1.00 0.500 ug/L 04/05/23 13:06 10.500 UVinyl chloride
10.0 1.60 ug/L 04/05/23 13:06 11.60 UXylenes, Total
4-Bromofluorobenzene 98 72-119 04/05/23 13:06 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane 99 04/05/23 13:06 175-126
Toluene-d8 (Surr)92 04/05/23 13:06 164-132
Eurofins Pensacola
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Surrogate Summary
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
Method: SM6200-B - Volatile Organic Compounds
Prep Type: Total/NAMatrix: Water
Lab Sample ID Client Sample ID (72-119)(75-126)(64-132)
BFB DBFM TOL
101 100 94400-235334-1
Percent Surrogate Recovery (Acceptance Limits)
MW18
104 96 94400-235334-1 MS MW18
104 97 94400-235334-1 MSD MW18
103 99 93400-235334-2 MW19
102 98 92400-235334-3 MW20
98 99 92400-235334-4 WSW2
104 95 94LCS 400-619530/1002 Lab Control Sample
101 97 95MB 400-619530/4 Method Blank
Surrogate Legend
BFB = 4-Bromofluorobenzene
DBFM = Dibromofluoromethane
TOL = Toluene-d8 (Surr)
Eurofins Pensacola
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QC Association Summary
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
GC/MS VOA
Analysis Batch: 619530
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Water SM6200-B400-235334-1 MW18 Total/NA
Water SM6200-B400-235334-2 MW19 Total/NA
Water SM6200-B400-235334-3 MW20 Total/NA
Water SM6200-B400-235334-4 WSW2 Total/NA
Water SM6200-BMB 400-619530/4 Method Blank Total/NA
Water SM6200-BLCS 400-619530/1002 Lab Control Sample Total/NA
Water SM6200-B400-235334-1 MS MW18 Total/NA
Water SM6200-B400-235334-1 MSD MW18 Total/NA
Eurofins Pensacola
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QC Sample Results
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
Method: SM6200-B - Volatile Organic Compounds
Client Sample ID: Method BlankLab Sample ID: MB 400-619530/4
Matrix: Water Prep Type: Total/NA
Analysis Batch: 619530
RL MDL
1,1,1,2-Tetrachloroethane 0.160 U 1.00 0.160 ug/L 04/05/23 07:47 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
0.180 U 0.1801.00 ug/L 04/05/23 07:47 11,1,1-Trichloroethane
0.500 U 0.5001.00 ug/L 04/05/23 07:47 11,1,2,2-Tetrachloroethane
0.210 U 0.2105.00 ug/L 04/05/23 07:47 11,1,2-Trichloroethane
0.500 U 0.5001.00 ug/L 04/05/23 07:47 11,1-Dichloroethane
0.500 U 0.5001.00 ug/L 04/05/23 07:47 11,1-Dichloroethene
0.500 U 0.5001.00 ug/L 04/05/23 07:47 11,1-Dichloropropene
0.900 U 0.9001.00 ug/L 04/05/23 07:47 11,2,3-Trichlorobenzene
0.840 U 0.8405.00 ug/L 04/05/23 07:47 11,2,3-Trichloropropane
0.820 U 0.8201.00 ug/L 04/05/23 07:47 11,2,4-Trichlorobenzene
0.820 U 0.8201.00 ug/L 04/05/23 07:47 11,2,4-Trimethylbenzene
0.230 U 0.2301.00 ug/L 04/05/23 07:47 11,2-Dibromoethane (EDB)
0.500 U 0.5001.00 ug/L 04/05/23 07:47 11,2-Dichlorobenzene
0.190 U 0.1901.00 ug/L 04/05/23 07:47 11,2-Dichloroethane
0.500 U 0.5001.00 ug/L 04/05/23 07:47 11,2-Dichloropropane
0.560 U 0.5601.00 ug/L 04/05/23 07:47 11,3,5-Trimethylbenzene
0.540 U 0.5401.00 ug/L 04/05/23 07:47 11,3-Dichlorobenzene
0.500 U 0.5001.00 ug/L 04/05/23 07:47 11,3-Dichloropropane
0.640 U 0.6401.00 ug/L 04/05/23 07:47 11,4-Dichlorobenzene
0.500 U 0.5001.00 ug/L 04/05/23 07:47 12,2-Dichloropropane
2.60 U 2.6025.0 ug/L 04/05/23 07:47 12-Butanone (MEK)
0.570 U 0.5701.00 ug/L 04/05/23 07:47 12-Chlorotoluene
1.40 U 1.4025.0 ug/L 04/05/23 07:47 12-Hexanone
0.560 U 0.5601.00 ug/L 04/05/23 07:47 14-Chlorotoluene
1.80 U 1.8025.0 ug/L 04/05/23 07:47 14-Methyl-2-pentanone (MIBK)
10.0 U 10.025.0 ug/L 04/05/23 07:47 1Acetone
0.130 U 0.1301.00 ug/L 04/05/23 07:47 1Benzene
0.540 U 0.5401.00 ug/L 04/05/23 07:47 1Bromobenzene
0.210 U 0.2101.00 ug/L 04/05/23 07:47 1Bromochloromethane
0.500 U 0.5001.00 ug/L 04/05/23 07:47 1Bromodichloromethane
0.250 U 0.2505.00 ug/L 04/05/23 07:47 1Bromoform
0.980 U 0.9801.00 ug/L 04/05/23 07:47 1Bromomethane
0.190 U 0.1901.00 ug/L 04/05/23 07:47 1Carbon tetrachloride
0.150 U 0.1501.00 ug/L 04/05/23 07:47 1Chlorobenzene
0.760 U 0.7601.00 ug/L 04/05/23 07:47 1Chloroethane
1.00 U 1.001.00 ug/L 04/05/23 07:47 1Chloroform
0.320 U 0.3201.00 ug/L 04/05/23 07:47 1Chloromethane
0.200 U 0.2001.00 ug/L 04/05/23 07:47 1cis-1,2-Dichloroethene
0.500 U 0.5005.00 ug/L 04/05/23 07:47 1cis-1,3-Dichloropropene
0.240 U 0.2401.00 ug/L 04/05/23 07:47 1Dibromochloromethane
0.850 U 0.8501.00 ug/L 04/05/23 07:47 1Dichlorodifluoromethane
0.200 U 0.2001.00 ug/L 04/05/23 07:47 1Diisopropyl ether
24.0 U 24.0100 ug/L 04/05/23 07:47 1Ethanol
0.500 U 0.5001.00 ug/L 04/05/23 07:47 1Ethylbenzene
0.530 U 0.5301.00 ug/L 04/05/23 07:47 1Isopropylbenzene
0.220 U 0.2201.00 ug/L 04/05/23 07:47 1Methyl tert-butyl ether
3.00 U 3.005.00 ug/L 04/05/23 07:47 1Methylene Chloride
0.630 U 0.6305.00 ug/L 04/05/23 07:47 1m-Xylene & p-Xylene
Eurofins Pensacola
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QC Sample Results
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 400-619530/4
Matrix: Water Prep Type: Total/NA
Analysis Batch: 619530
RL MDL
Naphthalene 3.00 U 5.00 3.00 ug/L 04/05/23 07:47 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
0.760 U 0.7601.00 ug/L 04/05/23 07:47 1n-Butylbenzene
0.690 U 0.6901.00 ug/L 04/05/23 07:47 1N-Propylbenzene
0.600 U 0.6005.00 ug/L 04/05/23 07:47 1o-Xylene
0.710 U 0.7101.00 ug/L 04/05/23 07:47 1p-Cymene (p-Isopropyltoluene)
0.700 U 0.7001.00 ug/L 04/05/23 07:47 1sec-Butylbenzene
1.00 U 1.001.00 ug/L 04/05/23 07:47 1Styrene
0.630 U 0.6301.00 ug/L 04/05/23 07:47 1tert-Butylbenzene
0.900 U 0.9001.00 ug/L 04/05/23 07:47 1Tetrachloroethene
0.410 U 0.4101.00 ug/L 04/05/23 07:47 1Toluene
0.500 U 0.5001.00 ug/L 04/05/23 07:47 1trans-1,2-Dichloroethene
0.200 U 0.2005.00 ug/L 04/05/23 07:47 1trans-1,3-Dichloropropene
0.150 U 0.1501.00 ug/L 04/05/23 07:47 1Trichloroethene
0.520 U 0.5201.00 ug/L 04/05/23 07:47 1Trichlorofluoromethane
0.930 U 0.93025.0 ug/L 04/05/23 07:47 1Vinyl acetate
0.500 U 0.5001.00 ug/L 04/05/23 07:47 1Vinyl chloride
1.60 U 1.6010.0 ug/L 04/05/23 07:47 1Xylenes, Total
4-Bromofluorobenzene 101 72-119 04/05/23 07:47 1
MB MB
Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery
97 04/05/23 07:47 1Dibromofluoromethane75-126
95 04/05/23 07:47 1Toluene-d8 (Surr)64-132
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-619530/1002
Matrix: Water Prep Type: Total/NA
Analysis Batch: 619530
1,1,1,2-Tetrachloroethane 50.0 55.13 ug/L 110 67 -131
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
1,1,1-Trichloroethane 50.0 44.72 ug/L 89 68 -130
1,1,2,2-Tetrachloroethane 50.0 54.52 ug/L 109 70 -131
1,1,2-Trichloroethane 50.0 52.59 ug/L 105 70 -130
1,1-Dichloroethane 50.0 49.97 ug/L 100 70 -130
1,1-Dichloroethene 50.0 46.25 ug/L 92 63 -134
1,1-Dichloropropene 50.0 47.01 ug/L 94 70 -130
1,2,3-Trichlorobenzene 50.0 53.24 ug/L 106 60 -138
1,2,3-Trichloropropane 50.0 49.38 ug/L 99 70 -130
1,2,4-Trichlorobenzene 50.0 52.83 ug/L 106 60 -140
1,2,4-Trimethylbenzene 50.0 49.66 ug/L 99 70 -130
1,2-Dibromoethane (EDB)50.0 51.94 ug/L 104 70 -130
1,2-Dichlorobenzene 50.0 49.63 ug/L 99 67 -130
1,2-Dichloroethane 50.0 47.16 ug/L 94 69 -130
1,2-Dichloropropane 50.0 56.33 ug/L 113 70 -130
1,3,5-Trimethylbenzene 50.0 49.08 ug/L 98 69 -130
1,3-Dichlorobenzene 50.0 49.98 ug/L 100 70 -130
1,3-Dichloropropane 50.0 53.77 ug/L 108 70 -130
1,4-Dichlorobenzene 50.0 49.60 ug/L 99 70 -130
2,2-Dichloropropane 50.0 56.55 ug/L 113 52 -135
Eurofins Pensacola
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QC Sample Results
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-619530/1002
Matrix: Water Prep Type: Total/NA
Analysis Batch: 619530
2-Butanone (MEK)200 184.9 ug/L 92 61 -145
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
2-Chlorotoluene 50.0 45.57 ug/L 91 70 -130
2-Hexanone 200 190.1 ug/L 95 65 -137
4-Chlorotoluene 50.0 49.15 ug/L 98 70 -130
4-Methyl-2-pentanone (MIBK)200 215.8 ug/L 108 69 -138
Acetone 200 170.3 ug/L 85 43 -160
Benzene 50.0 51.54 ug/L 103 70 -130
Bromobenzene 50.0 52.32 ug/L 105 70 -132
Bromochloromethane 50.0 51.99 ug/L 104 70 -130
Bromodichloromethane 50.0 52.51 ug/L 105 67 -133
Bromoform 50.0 59.02 ug/L 118 57 -140
Bromomethane 25.0 20.61 ug/L 82 10 -160
Carbon tetrachloride 50.0 46.35 ug/L 93 61 -137
Chlorobenzene 50.0 49.18 ug/L 98 70 -130
Chloroethane 25.0 23.55 ug/L 94 55 -141
Chloroform 50.0 47.76 ug/L 96 69 -130
Chloromethane 25.0 28.52 ug/L 114 58 -137
cis-1,2-Dichloroethene 50.0 50.83 ug/L 102 68 -130
cis-1,3-Dichloropropene 50.0 59.51 ug/L 119 69 -132
Dibromochloromethane 50.0 52.62 ug/L 105 67 -135
Dichlorodifluoromethane 25.0 19.05 ug/L 76 41 -146
Diisopropyl ether 25.0 31.14 ug/L 125 64 -132
Ethanol 1000 671.2 ug/L 67 20 -160
Ethylbenzene 50.0 47.39 ug/L 95 70 -130
Isopropylbenzene 50.0 45.84 ug/L 92 70 -130
Methyl tert-butyl ether 50.0 56.30 ug/L 113 66 -130
Methylene Chloride 50.0 54.24 ug/L 108 66 -135
m-Xylene & p-Xylene 50.0 46.02 ug/L 92 70 -130
Naphthalene 50.0 51.45 ug/L 103 47 -149
n-Butylbenzene 50.0 43.38 ug/L 87 67 -130
N-Propylbenzene 50.0 48.89 ug/L 98 70 -130
o-Xylene 50.0 47.44 ug/L 95 70 -130
p-Cymene (p-Isopropyltoluene)50.0 48.33 ug/L 97 65 -130
sec-Butylbenzene 50.0 47.93 ug/L 96 66 -130
Styrene 50.0 50.49 ug/L 101 70 -130
tert-Butylbenzene 50.0 46.44 ug/L 93 64 -139
Tetrachloroethene 50.0 44.35 ug/L 89 65 -130
Toluene 50.0 46.86 ug/L 94 70 -130
trans-1,2-Dichloroethene 50.0 47.57 ug/L 95 70 -130
trans-1,3-Dichloropropene 50.0 57.38 ug/L 115 63 -130
Trichloroethene 50.0 48.26 ug/L 97 70 -130
Trichlorofluoromethane 25.0 21.83 ug/L 87 65 -138
Vinyl acetate 50.0 74.10 ug/L 148 26 -160
Vinyl chloride 25.0 26.44 ug/L 106 59 -136
Xylenes, Total 100 93.46 ug/L 93 70 -130
4-Bromofluorobenzene 72 -119
Surrogate
104
LCS LCS
Qualifier Limits%Recovery
Eurofins Pensacola
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QC Sample Results
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-619530/1002
Matrix: Water Prep Type: Total/NA
Analysis Batch: 619530
Dibromofluoromethane 75 -126
Surrogate
95
LCS LCS
Qualifier Limits%Recovery
94Toluene-d8 (Surr)64 -132
Client Sample ID: MW18Lab Sample ID: 400-235334-1 MS
Matrix: Water Prep Type: Total/NA
Analysis Batch: 619530
1,1,1,2-Tetrachloroethane 0.160 U 50.0 51.15 ug/L 102 59 -137
Analyte
MS MS
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits
1,1,1-Trichloroethane 0.180 U 50.0 42.74 ug/L 85 57 -142
1,1,2,2-Tetrachloroethane 0.500 U 50.0 58.06 ug/L 116 66 -135
1,1,2-Trichloroethane 0.210 U 50.0 53.20 ug/L 106 66 -131
1,1-Dichloroethane 0.500 U 50.0 47.96 ug/L 96 61 -144
1,1-Dichloroethene 0.500 U 50.0 44.40 ug/L 89 54 -147
1,1-Dichloropropene 0.500 U 50.0 44.76 ug/L 90 65 -136
1,2,3-Trichlorobenzene 0.900 U 50.0 44.81 ug/L 90 43 -145
1,2,3-Trichloropropane 0.840 U 50.0 53.07 ug/L 106 65 -133
1,2,4-Trichlorobenzene 0.820 U 50.0 42.84 ug/L 86 39 -148
1,2,4-Trimethylbenzene 0.820 U 50.0 42.33 ug/L 85 50 -139
1,2-Dibromoethane (EDB)0.230 U 50.0 53.28 ug/L 107 64 -132
1,2-Dichlorobenzene 0.500 U 50.0 42.61 ug/L 85 52 -137
1,2-Dichloroethane 0.190 U 50.0 47.07 ug/L 94 60 -141
1,2-Dichloropropane 0.500 U 50.0 54.54 ug/L 109 66 -137
1,3,5-Trimethylbenzene 0.560 U 50.0 42.07 ug/L 84 52 -135
1,3-Dichlorobenzene 0.540 U 50.0 42.11 ug/L 84 54 -135
1,3-Dichloropropane 0.500 U 50.0 53.64 ug/L 107 66 -133
1,4-Dichlorobenzene 0.640 U 50.0 41.46 ug/L 83 53 -135
2,2-Dichloropropane 0.500 U 50.0 54.98 ug/L 110 42 -144
2-Butanone (MEK)2.60 U 200 217.2 ug/L 109 55 -150
2-Chlorotoluene 0.570 U 50.0 39.19 ug/L 78 53 -134
2-Hexanone 1.40 U 200 222.9 ug/L 111 65 -140
4-Chlorotoluene 0.560 U 50.0 42.01 ug/L 84 54 -133
4-Methyl-2-pentanone (MIBK)1.80 U 200 246.9 ug/L 123 63 -146
Acetone 10.0 U 200 186.3 ug/L 93 43 -150
Benzene 13.2 50.0 62.06 ug/L 98 56 -142
Bromobenzene 0.540 U 50.0 46.85 ug/L 94 59 -136
Bromochloromethane 0.210 U 50.0 50.64 ug/L 101 64 -140
Bromodichloromethane 0.500 U 50.0 49.59 ug/L 99 59 -143
Bromoform 0.250 U 50.0 58.62 ug/L 117 50 -140
Bromomethane 0.980 U 25.0 16.67 ug/L 67 10 -150
Carbon tetrachloride 0.190 U 50.0 44.21 ug/L 88 55 -145
Chlorobenzene 0.150 U 50.0 44.84 ug/L 90 64 -130
Chloroethane 0.760 U 25.0 18.56 ug/L 74 50 -150
Chloroform 1.00 U 50.0 45.48 ug/L 91 60 -141
Chloromethane 0.320 U 25.0 23.53 ug/L 94 49 -148
cis-1,2-Dichloroethene 0.200 U 50.0 50.06 ug/L 100 59 -143
cis-1,3-Dichloropropene 0.500 U 50.0 56.11 ug/L 112 57 -140
Dibromochloromethane 0.240 U 50.0 50.50 ug/L 101 56 -143
Eurofins Pensacola
Page 21 of 30 4/7/2023
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QC Sample Results
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: MW18Lab Sample ID: 400-235334-1 MS
Matrix: Water Prep Type: Total/NA
Analysis Batch: 619530
Dichlorodifluoromethane 0.850 U 25.0 15.36 ug/L 61 16 -150
Analyte
MS MS
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits
Diisopropyl ether 0.212 J 25.0 25.74 ug/L 102 60 -144
Ethanol 24.0 U 1000 666.5 ug/L 67 10 -150
Ethylbenzene 0.500 U 50.0 43.06 ug/L 86 58 -131
Isopropylbenzene 0.530 U 50.0 40.67 ug/L 81 56 -133
Methyl tert-butyl ether 2.38 50.0 60.54 ug/L 116 59 -137
Methylene Chloride 3.00 U 50.0 50.97 ug/L 102 60 -146
m-Xylene & p-Xylene 0.630 U 50.0 43.20 ug/L 86 57 -130
Naphthalene 3.00 U 50.0 49.97 ug/L 100 25 -150
n-Butylbenzene 0.760 U 50.0 34.49 ug/L 69 41 -142
N-Propylbenzene 0.690 U 50.0 42.02 ug/L 84 51 -138
o-Xylene 0.600 U 50.0 43.34 ug/L 87 61 -130
p-Cymene (p-Isopropyltoluene)0.710 U 50.0 39.89 ug/L 80 48 -139
sec-Butylbenzene 0.700 U 50.0 40.37 ug/L 81 50 -138
Styrene 1.00 U 50.0 45.08 ug/L 90 58 -131
tert-Butylbenzene 0.630 U 50.0 39.91 ug/L 80 54 -146
Tetrachloroethene 0.900 U 50.0 38.60 ug/L 77 52 -133
Toluene 0.410 U 50.0 44.00 ug/L 88 65 -130
trans-1,2-Dichloroethene 0.500 U 50.0 44.85 ug/L 90 61 -143
trans-1,3-Dichloropropene 0.200 U 50.0 55.53 ug/L 111 53 -133
Trichloroethene 0.150 U 50.0 44.57 ug/L 89 64 -136
Trichlorofluoromethane 0.520 U 25.0 18.30 ug/L 73 54 -150
Vinyl acetate 0.930 U 50.0 71.71 ug/L 143 26 -150
Vinyl chloride 0.500 U 25.0 21.75 ug/L 87 46 -150
Xylenes, Total 1.60 U 100 86.54 ug/L 87 59 -130
4-Bromofluorobenzene 72 -119
Surrogate
104
MS MS
Qualifier Limits%Recovery
96Dibromofluoromethane 75 -126
94Toluene-d8 (Surr)64 -132
Client Sample ID: MW18Lab Sample ID: 400-235334-1 MSD
Matrix: Water Prep Type: Total/NA
Analysis Batch: 619530
1,1,1,2-Tetrachloroethane 0.160 U 50.0 46.26 ug/L 93 59 -137 10 30
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
1,1,1-Trichloroethane 0.180 U 50.0 39.25 ug/L 79 57 -142 8 30
1,1,2,2-Tetrachloroethane 0.500 U 50.0 53.01 ug/L 106 66 -135 9 30
1,1,2-Trichloroethane 0.210 U 50.0 48.60 ug/L 97 66 -131 9 30
1,1-Dichloroethane 0.500 U 50.0 44.28 ug/L 89 61 -144 8 30
1,1-Dichloroethene 0.500 U 50.0 40.74 ug/L 81 54 -147 9 30
1,1-Dichloropropene 0.500 U 50.0 40.97 ug/L 82 65 -136 9 30
1,2,3-Trichlorobenzene 0.900 U 50.0 40.75 ug/L 81 43 -145 9 30
1,2,3-Trichloropropane 0.840 U 50.0 47.47 ug/L 95 65 -133 11 30
1,2,4-Trichlorobenzene 0.820 U 50.0 38.23 ug/L 76 39 -148 11 30
1,2,4-Trimethylbenzene 0.820 U 50.0 37.90 ug/L 76 50 -139 11 30
1,2-Dibromoethane (EDB)0.230 U 50.0 48.32 ug/L 97 64 -132 10 30
Eurofins Pensacola
Page 22 of 30 4/7/2023
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QC Sample Results
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: MW18Lab Sample ID: 400-235334-1 MSD
Matrix: Water Prep Type: Total/NA
Analysis Batch: 619530
1,2-Dichlorobenzene 0.500 U 50.0 38.57 ug/L 77 52 -137 10 30
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
1,2-Dichloroethane 0.190 U 50.0 43.01 ug/L 86 60 -141 9 30
1,2-Dichloropropane 0.500 U 50.0 50.13 ug/L 100 66 -137 8 30
1,3,5-Trimethylbenzene 0.560 U 50.0 37.51 ug/L 75 52 -135 11 30
1,3-Dichlorobenzene 0.540 U 50.0 37.70 ug/L 75 54 -135 11 30
1,3-Dichloropropane 0.500 U 50.0 48.74 ug/L 97 66 -133 10 30
1,4-Dichlorobenzene 0.640 U 50.0 37.47 ug/L 75 53 -135 10 30
2,2-Dichloropropane 0.500 U 50.0 51.44 ug/L 103 42 -144 7 31
2-Butanone (MEK)2.60 U 200 199.9 ug/L 100 55 -150 8 30
2-Chlorotoluene 0.570 U 50.0 35.30 ug/L 71 53 -134 10 30
2-Hexanone 1.40 U 200 204.3 ug/L 102 65 -140 9 30
4-Chlorotoluene 0.560 U 50.0 37.36 ug/L 75 54 -133 12 30
4-Methyl-2-pentanone (MIBK)1.80 U 200 230.6 ug/L 115 63 -146 7 30
Acetone 10.0 U 200 173.1 ug/L 87 43 -150 7 30
Benzene 13.2 50.0 58.10 ug/L 90 56 -142 7 30
Bromobenzene 0.540 U 50.0 42.01 ug/L 84 59 -136 11 30
Bromochloromethane 0.210 U 50.0 46.68 ug/L 93 64 -140 8 30
Bromodichloromethane 0.500 U 50.0 45.64 ug/L 91 59 -143 8 30
Bromoform 0.250 U 50.0 52.72 ug/L 105 50 -140 11 30
Bromomethane 0.980 U 25.0 18.34 ug/L 73 10 -150 10 50
Carbon tetrachloride 0.190 U 50.0 40.02 ug/L 80 55 -145 10 30
Chlorobenzene 0.150 U 50.0 40.77 ug/L 82 64 -130 9 30
Chloroethane 0.760 U 25.0 20.18 ug/L 81 50 -150 8 30
Chloroform 1.00 U 50.0 41.62 ug/L 83 60 -141 9 30
Chloromethane 0.320 U 25.0 23.50 ug/L 94 49 -148 0 31
cis-1,2-Dichloroethene 0.200 U 50.0 46.15 ug/L 92 59 -143 8 30
cis-1,3-Dichloropropene 0.500 U 50.0 52.42 ug/L 105 57 -140 7 30
Dibromochloromethane 0.240 U 50.0 46.20 ug/L 92 56 -143 9 30
Dichlorodifluoromethane 0.850 U 25.0 16.40 ug/L 66 16 -150 7 31
Diisopropyl ether 0.212 J 25.0 25.18 ug/L 100 60 -144 2 30
Ethanol 24.0 U 1000 682.9 ug/L 68 10 -150 2 40
Ethylbenzene 0.500 U 50.0 38.96 ug/L 78 58 -131 10 30
Isopropylbenzene 0.530 U 50.0 36.79 ug/L 74 56 -133 10 30
Methyl tert-butyl ether 2.38 50.0 56.97 ug/L 109 59 -137 6 30
Methylene Chloride 3.00 U 50.0 47.50 ug/L 95 60 -146 7 32
m-Xylene & p-Xylene 0.630 U 50.0 39.44 ug/L 79 57 -130 9 30
Naphthalene 3.00 U 50.0 45.27 ug/L 91 25 -150 10 30
n-Butylbenzene 0.760 U 50.0 30.25 ug/L 61 41 -142 13 31
N-Propylbenzene 0.690 U 50.0 37.27 ug/L 75 51 -138 12 30
o-Xylene 0.600 U 50.0 39.54 ug/L 79 61 -130 9 30
p-Cymene (p-Isopropyltoluene)0.710 U 50.0 35.74 ug/L 71 48 -139 11 30
sec-Butylbenzene 0.700 U 50.0 35.99 ug/L 72 50 -138 11 30
Styrene 1.00 U 50.0 41.30 ug/L 83 58 -131 9 30
tert-Butylbenzene 0.630 U 50.0 35.52 ug/L 71 54 -146 12 30
Tetrachloroethene 0.900 U 50.0 34.66 ug/L 69 52 -133 11 30
Toluene 0.410 U 50.0 39.98 ug/L 80 65 -130 10 30
trans-1,2-Dichloroethene 0.500 U 50.0 41.02 ug/L 82 61 -143 9 30
trans-1,3-Dichloropropene 0.200 U 50.0 51.77 ug/L 104 53 -133 7 30
Trichloroethene 0.150 U 50.0 41.08 ug/L 82 64 -136 8 30
Eurofins Pensacola
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QC Sample Results
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: MW18Lab Sample ID: 400-235334-1 MSD
Matrix: Water Prep Type: Total/NA
Analysis Batch: 619530
Trichlorofluoromethane 0.520 U 25.0 19.23 ug/L 77 54 -150 5 30
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
Vinyl acetate 0.930 U 50.0 73.16 ug/L 146 26 -150 2 33
Vinyl chloride 0.500 U 25.0 22.63 ug/L 91 46 -150 4 30
Xylenes, Total 1.60 U 100 78.98 ug/L 79 59 -130 9 30
4-Bromofluorobenzene 72 -119
Surrogate
104
MSD MSD
Qualifier Limits%Recovery
97Dibromofluoromethane 75 -126
94Toluene-d8 (Surr)64 -132
Eurofins Pensacola
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Lab Chronicle
Client: Terraquest Environmental Consultants, PC Job ID: 400-235334-1
Project/Site: Perth Mini-Mart
Client Sample ID: MW18 Lab Sample ID: 400-235334-1
Matrix: WaterDate Collected: 03/29/23 12:05
Date Received: 03/31/23 09:09
Analysis SM6200-B WPD04/05/23 11:581 EET PEN619530
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: MW19 Lab Sample ID: 400-235334-2
Matrix: WaterDate Collected: 03/29/23 12:10
Date Received: 03/31/23 09:09
Analysis SM6200-B WPD04/05/23 12:201 EET PEN619530
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: MW20 Lab Sample ID: 400-235334-3
Matrix: WaterDate Collected: 03/29/23 12:15
Date Received: 03/31/23 09:09
Analysis SM6200-B WPD04/05/23 12:431 EET PEN619530
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: WSW2 Lab Sample ID: 400-235334-4
Matrix: WaterDate Collected: 03/29/23 11:50
Date Received: 03/31/23 09:09
Analysis SM6200-B WPD04/05/23 13:061 EET PEN619530
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: Method Blank Lab Sample ID: MB 400-619530/4
Matrix: WaterDate Collected: N/A
Date Received: N/A
Analysis SM6200-B WPD04/05/23 07:471 EET PEN619530
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-619530/1002
Matrix: WaterDate Collected: N/A
Date Received: N/A
Analysis SM6200-B WPD04/05/23 07:011 EET PEN619530
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: MW18 Lab Sample ID: 400-235334-1 MS
Matrix: WaterDate Collected: 03/29/23 12:05
Date Received: 03/31/23 09:09
Analysis SM6200-B WPD04/05/23 13:291 EET PEN619530
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Eurofins Pensacola
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Lab Chronicle
Client: Terraquest Environmental Consultants, PC Job ID: 400-235334-1
Project/Site: Perth Mini-Mart
Client Sample ID: MW18 Lab Sample ID: 400-235334-1 MSD
Matrix: WaterDate Collected: 03/29/23 12:05
Date Received: 03/31/23 09:09
Analysis SM6200-B WPD04/05/23 13:521 EET PEN619530
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
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Method Summary
Job ID: 400-235334-1Client: Terraquest Environmental Consultants, PC
Project/Site: Perth Mini-Mart
Method Method Description LaboratoryProtocol
SMSM6200-B Volatile Organic Compounds EET PEN
SW8465030BPurge and Trap EET PEN
Protocol References:
SM = "Standard Methods For The Examination Of Water And Wastewater"
SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
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Accreditation/Certification Summary
Client: Terraquest Environmental Consultants, PC Job ID: 400-235334-1
Project/Site: Perth Mini-Mart
Laboratory: Eurofins Pensacola
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program Identification Number Expiration Date
North Carolina (WW/SW)State 314 12-31-23
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which
the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
SM6200-B Water 2-Butanone (MEK)
SM6200-B Water 2-Hexanone
SM6200-B Water 4-Methyl-2-pentanone (MIBK)
SM6200-B Water Acetone
SM6200-B Water Vinyl acetate
Eurofins Pensacola
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