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HomeMy WebLinkAboutMO-9324_40784_G_WSW_20230208 February 8, 2023 MEMORANDUM TO: Dave Lilley, Environmental Toxicologist, Division of Waste Management, 1646 Mail Service Center, Raleigh, NC 27699-1646 (FAX (919) 707-8241) 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 January 18, 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: 400-232047-1Client: Terraquest Environmental Consultants, PC Project/Site: Perth Mini Mart Lab Sample ID: 400-232047-13Client Sample ID: WSW2 Matrix: WaterDate Collected: 01/18/23 12:55 Date Received: 01/20/23 09:04 Method: SM6200-B - Volatile Organic Compounds RL MDL 0.160 U 1.00 0.160 ug/L 01/25/23 18:52 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,1,1,2-Tetrachloroethane 1.00 0.180 ug/L 01/25/23 18:52 10.180 U1,1,1-Trichloroethane 1.00 0.500 ug/L 01/25/23 18:52 10.500 U1,1,2,2-Tetrachloroethane 5.00 0.210 ug/L 01/25/23 18:52 10.210 U1,1,2-Trichloroethane 1.00 0.500 ug/L 01/25/23 18:52 10.500 U1,1-Dichloroethane 1.00 0.500 ug/L 01/25/23 18:52 10.500 U1,1-Dichloroethene 1.00 0.500 ug/L 01/25/23 18:52 10.500 U1,1-Dichloropropene 1.00 0.900 ug/L 01/25/23 18:52 10.900 U1,2,3-Trichlorobenzene 5.00 0.840 ug/L 01/25/23 18:52 10.840 U1,2,3-Trichloropropane 1.00 0.820 ug/L 01/25/23 18:52 10.820 U1,2,4-Trichlorobenzene 1.00 0.820 ug/L 01/25/23 18:52 10.820 U1,2,4-Trimethylbenzene 1.00 0.230 ug/L 01/25/23 18:52 10.230 U1,2-Dibromoethane (EDB) 1.00 0.500 ug/L 01/25/23 18:52 10.500 U1,2-Dichlorobenzene 1.00 0.190 ug/L 01/25/23 18:52 10.190 U1,2-Dichloroethane 1.00 0.500 ug/L 01/25/23 18:52 10.500 U1,2-Dichloropropane 1.00 0.560 ug/L 01/25/23 18:52 10.560 U1,3,5-Trimethylbenzene 1.00 0.540 ug/L 01/25/23 18:52 10.540 U1,3-Dichlorobenzene 1.00 0.500 ug/L 01/25/23 18:52 10.500 U1,3-Dichloropropane 1.00 0.640 ug/L 01/25/23 18:52 10.640 U1,4-Dichlorobenzene 1.00 0.500 ug/L 01/25/23 18:52 10.500 U2,2-Dichloropropane 25.0 2.60 ug/L 01/25/23 18:52 12.60 U2-Butanone (MEK) 1.00 0.570 ug/L 01/25/23 18:52 10.570 U2-Chlorotoluene 25.0 1.40 ug/L 01/25/23 18:52 11.40 U2-Hexanone 1.00 0.560 ug/L 01/25/23 18:52 10.560 U4-Chlorotoluene 25.0 1.80 ug/L 01/25/23 18:52 11.80 U4-Methyl-2-pentanone (MIBK) 25.0 10.0 ug/L 01/25/23 18:52 110.0 UAcetone 1.00 0.130 ug/L 01/25/23 18:52 10.130 UBenzene 1.00 0.540 ug/L 01/25/23 18:52 10.540 UBromobenzene 1.00 0.210 ug/L 01/25/23 18:52 10.210 U *+Bromochloromethane 1.00 0.500 ug/L 01/25/23 18:52 10.500 UBromodichloromethane 5.00 0.250 ug/L 01/25/23 18:52 10.250 UBromoform 1.00 0.980 ug/L 01/25/23 18:52 10.980 U *+Bromomethane 1.00 0.190 ug/L 01/25/23 18:52 10.190 UCarbon tetrachloride 1.00 0.150 ug/L 01/25/23 18:52 10.150 UChlorobenzene 1.00 0.760 ug/L 01/25/23 18:52 10.760 UChloroethane 1.00 1.00 ug/L 01/25/23 18:52 11.00 UChloroform 1.00 0.320 ug/L 01/25/23 18:52 10.320 UChloromethane 1.00 0.200 ug/L 01/25/23 18:52 10.200 Ucis-1,2-Dichloroethene 5.00 0.500 ug/L 01/25/23 18:52 10.500 Ucis-1,3-Dichloropropene 1.00 0.240 ug/L 01/25/23 18:52 10.240 UDibromochloromethane 1.00 0.850 ug/L 01/25/23 18:52 10.850 UDichlorodifluoromethane 1.00 0.200 ug/L 01/25/23 18:52 10.200 UDiisopropyl ether 100 24.0 ug/L 01/25/23 18:52 124.0 UEthanol 1.00 0.500 ug/L 01/25/23 18:52 10.500 UEthylbenzene 1.00 0.530 ug/L 01/25/23 18:52 10.530 UIsopropylbenzene 1.00 0.220 ug/L 01/25/23 18:52 10.231 JMethyl tert-butyl ether 5.00 3.00 ug/L 01/25/23 18:52 13.00 UMethylene Chloride 5.00 0.630 ug/L 01/25/23 18:52 10.630 Um-Xylene & p-Xylene 5.00 3.00 ug/L 01/25/23 18:52 13.00 UNaphthalene Eurofins Pensacola Page 33 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 400-232047-1Client: Terraquest Environmental Consultants, PC Project/Site: Perth Mini Mart Lab Sample ID: 400-232047-13Client Sample ID: WSW2 Matrix: WaterDate Collected: 01/18/23 12:55 Date Received: 01/20/23 09:04 Method: SM6200-B - Volatile Organic Compounds (Continued) RL MDL 0.760 U 1.00 0.760 ug/L 01/25/23 18:52 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier n-Butylbenzene 1.00 0.690 ug/L 01/25/23 18:52 10.690 UN-Propylbenzene 5.00 0.600 ug/L 01/25/23 18:52 10.600 Uo-Xylene 1.00 0.710 ug/L 01/25/23 18:52 10.710 Up-Cymene (p-Isopropyltoluene) 1.00 0.700 ug/L 01/25/23 18:52 10.700 Usec-Butylbenzene 1.00 1.00 ug/L 01/25/23 18:52 11.00 UStyrene 1.00 0.630 ug/L 01/25/23 18:52 10.630 Utert-Butylbenzene 1.00 0.900 ug/L 01/25/23 18:52 10.900 UTetrachloroethene 1.00 0.410 ug/L 01/25/23 18:52 10.410 UToluene 1.00 0.500 ug/L 01/25/23 18:52 10.500 Utrans-1,2-Dichloroethene 5.00 0.200 ug/L 01/25/23 18:52 10.200 Utrans-1,3-Dichloropropene 1.00 0.150 ug/L 01/25/23 18:52 10.150 U *+Trichloroethene 1.00 0.520 ug/L 01/25/23 18:52 10.520 U *+Trichlorofluoromethane 25.0 0.930 ug/L 01/25/23 18:52 10.930 UVinyl acetate 1.00 0.500 ug/L 01/25/23 18:52 10.500 U *+Vinyl chloride 10.0 1.60 ug/L 01/25/23 18:52 11.60 UXylenes, Total 4-Bromofluorobenzene 86 72-119 01/25/23 18:52 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane 114 01/25/23 18:52 175-126 Toluene-d8 (Surr)95 01/25/23 18:52 164-132 Method: EPA-DW 504.1 - EDB, DBCP and 1,2,3-TCP (GC) RL MDL 0.0151 U 0.0202 0.0151 ug/L 02/01/23 09:49 02/01/23 19:42 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,2-Dibromoethane (EDB) 4-Bromofluorobenzene 109 56-150 02/01/23 09:49 02/01/23 19:42 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Eurofins Pensacola Page 34 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 400-232047-1Client: Terraquest Environmental Consultants, PC Project/Site: Perth Mini Mart GC/MS VOA Analysis Batch: 609770 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water SM6200-B400-232072-1 MW12 Total/NA Water SM6200-BMB 400-609770/4 Method Blank Total/NA Water SM6200-BLCS 400-609770/1002 Lab Control Sample Total/NA Analysis Batch: 609802 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water SM6200-B400-232047-1 MW1 Total/NA Water SM6200-B400-232047-2 MW4 Total/NA Water SM6200-B400-232047-3 MW5 Total/NA Water SM6200-B400-232047-4 MW6 Total/NA Water SM6200-B400-232047-5 MW7 Total/NA Water SM6200-B400-232047-6 MW8 Total/NA Water SM6200-B400-232047-7 MW9 Total/NA Water SM6200-B400-232047-8 MW10 Total/NA Water SM6200-B400-232047-9 MW11 Total/NA Water SM6200-B400-232047-10 MW13 Total/NA Water SM6200-B400-232047-11 MW14 Total/NA Water SM6200-B400-232047-12 WSW1 Total/NA Water SM6200-B400-232047-13 WSW2 Total/NA Water SM6200-B400-232047-14 WSW4 Total/NA Water SM6200-BMB 400-609802/4 Method Blank Total/NA Water SM6200-BLCS 400-609802/1002 Lab Control Sample Total/NA Analysis Batch: 610024 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water SM6200-B400-232047-1 MW1 Total/NA Water SM6200-B400-232047-2 MW4 Total/NA Water SM6200-B400-232047-4 MW6 Total/NA Water SM6200-B400-232047-12 WSW1 Total/NA Water SM6200-BMB 400-610024/6 Method Blank Total/NA Water SM6200-BLCS 400-610024/1002 Lab Control Sample Total/NA GC Semi VOA Prep Batch: 610674 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 504.1400-232047-12 WSW1 Total/NA Water 504.1400-232047-13 WSW2 Total/NA Water 504.1400-232047-14 WSW4 Total/NA Water 504.1MB 400-610674/1-A Method Blank Total/NA Water 504.1LCS 400-610674/2-A Lab Control Sample Total/NA Water 504.1LCSD 400-610674/3-A Lab Control Sample Dup Total/NA Analysis Batch: 610718 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 504.1 610674400-232047-12 WSW1 Total/NA Water 504.1 610674400-232047-13 WSW2 Total/NA Water 504.1 610674400-232047-14 WSW4 Total/NA Water 504.1 610674MB 400-610674/1-A Method Blank Total/NA Water 504.1 610674LCS 400-610674/2-A Lab Control Sample Total/NA Water 504.1 610674LCSD 400-610674/3-A Lab Control Sample Dup Total/NA Eurofins Pensacola Page 41 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 400-232047-1Client: Terraquest Environmental Consultants, PC Project/Site: Perth Mini Mart Method: SM6200-B - Volatile Organic Compounds Client Sample ID: Method BlankLab Sample ID: MB 400-609770/4 Matrix: Water Prep Type: Total/NA Analysis Batch: 609770 RL MDL 1,1,1,2-Tetrachloroethane 0.160 U 1.00 0.160 ug/L 01/25/23 10:41 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 0.180 U 0.1801.00 ug/L 01/25/23 10:41 11,1,1-Trichloroethane 0.500 U 0.5001.00 ug/L 01/25/23 10:41 11,1,2,2-Tetrachloroethane 0.210 U 0.2105.00 ug/L 01/25/23 10:41 11,1,2-Trichloroethane 0.500 U 0.5001.00 ug/L 01/25/23 10:41 11,1-Dichloroethane 0.500 U 0.5001.00 ug/L 01/25/23 10:41 11,1-Dichloroethene 0.500 U 0.5001.00 ug/L 01/25/23 10:41 11,1-Dichloropropene 0.900 U 0.9001.00 ug/L 01/25/23 10:41 11,2,3-Trichlorobenzene 0.840 U 0.8405.00 ug/L 01/25/23 10:41 11,2,3-Trichloropropane 0.820 U 0.8201.00 ug/L 01/25/23 10:41 11,2,4-Trichlorobenzene 0.820 U 0.8201.00 ug/L 01/25/23 10:41 11,2,4-Trimethylbenzene 0.230 U 0.2301.00 ug/L 01/25/23 10:41 11,2-Dibromoethane (EDB) 0.500 U 0.5001.00 ug/L 01/25/23 10:41 11,2-Dichlorobenzene 0.190 U 0.1901.00 ug/L 01/25/23 10:41 11,2-Dichloroethane 0.500 U 0.5001.00 ug/L 01/25/23 10:41 11,2-Dichloropropane 0.560 U 0.5601.00 ug/L 01/25/23 10:41 11,3,5-Trimethylbenzene 0.540 U 0.5401.00 ug/L 01/25/23 10:41 11,3-Dichlorobenzene 0.500 U 0.5001.00 ug/L 01/25/23 10:41 11,3-Dichloropropane 0.640 U 0.6401.00 ug/L 01/25/23 10:41 11,4-Dichlorobenzene 0.500 U 0.5001.00 ug/L 01/25/23 10:41 12,2-Dichloropropane 2.60 U 2.6025.0 ug/L 01/25/23 10:41 12-Butanone (MEK) 0.570 U 0.5701.00 ug/L 01/25/23 10:41 12-Chlorotoluene 1.40 U 1.4025.0 ug/L 01/25/23 10:41 12-Hexanone 0.560 U 0.5601.00 ug/L 01/25/23 10:41 14-Chlorotoluene 1.80 U 1.8025.0 ug/L 01/25/23 10:41 14-Methyl-2-pentanone (MIBK) 10.0 U 10.025.0 ug/L 01/25/23 10:41 1Acetone 0.130 U 0.1301.00 ug/L 01/25/23 10:41 1Benzene 0.540 U 0.5401.00 ug/L 01/25/23 10:41 1Bromobenzene 0.210 U 0.2101.00 ug/L 01/25/23 10:41 1Bromochloromethane 0.500 U 0.5001.00 ug/L 01/25/23 10:41 1Bromodichloromethane 0.250 U 0.2505.00 ug/L 01/25/23 10:41 1Bromoform 0.980 U 0.9801.00 ug/L 01/25/23 10:41 1Bromomethane 0.190 U 0.1901.00 ug/L 01/25/23 10:41 1Carbon tetrachloride 0.150 U 0.1501.00 ug/L 01/25/23 10:41 1Chlorobenzene 0.760 U 0.7601.00 ug/L 01/25/23 10:41 1Chloroethane 1.00 U 1.001.00 ug/L 01/25/23 10:41 1Chloroform 0.320 U 0.3201.00 ug/L 01/25/23 10:41 1Chloromethane 0.200 U 0.2001.00 ug/L 01/25/23 10:41 1cis-1,2-Dichloroethene 0.500 U 0.5005.00 ug/L 01/25/23 10:41 1cis-1,3-Dichloropropene 0.240 U 0.2401.00 ug/L 01/25/23 10:41 1Dibromochloromethane 0.850 U 0.8501.00 ug/L 01/25/23 10:41 1Dichlorodifluoromethane 0.200 U 0.2001.00 ug/L 01/25/23 10:41 1Diisopropyl ether 24.0 U 24.0100 ug/L 01/25/23 10:41 1Ethanol 0.500 U 0.5001.00 ug/L 01/25/23 10:41 1Ethylbenzene 0.530 U 0.5301.00 ug/L 01/25/23 10:41 1Isopropylbenzene 0.220 U 0.2201.00 ug/L 01/25/23 10:41 1Methyl tert-butyl ether 3.00 U 3.005.00 ug/L 01/25/23 10:41 1Methylene Chloride 0.630 U 0.6305.00 ug/L 01/25/23 10:41 1m-Xylene & p-Xylene Eurofins Pensacola Page 42 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 400-232047-1Client: Terraquest Environmental Consultants, PC Project/Site: Perth Mini Mart Method: SM6200-B - Volatile Organic Compounds (Continued) Client Sample ID: Method BlankLab Sample ID: MB 400-609770/4 Matrix: Water Prep Type: Total/NA Analysis Batch: 609770 RL MDL Naphthalene 3.00 U 5.00 3.00 ug/L 01/25/23 10:41 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 0.760 U 0.7601.00 ug/L 01/25/23 10:41 1n-Butylbenzene 0.690 U 0.6901.00 ug/L 01/25/23 10:41 1N-Propylbenzene 0.600 U 0.6005.00 ug/L 01/25/23 10:41 1o-Xylene 0.710 U 0.7101.00 ug/L 01/25/23 10:41 1p-Cymene (p-Isopropyltoluene) 0.700 U 0.7001.00 ug/L 01/25/23 10:41 1sec-Butylbenzene 1.00 U 1.001.00 ug/L 01/25/23 10:41 1Styrene 0.630 U 0.6301.00 ug/L 01/25/23 10:41 1tert-Butylbenzene 0.900 U 0.9001.00 ug/L 01/25/23 10:41 1Tetrachloroethene 0.410 U 0.4101.00 ug/L 01/25/23 10:41 1Toluene 0.500 U 0.5001.00 ug/L 01/25/23 10:41 1trans-1,2-Dichloroethene 0.200 U 0.2005.00 ug/L 01/25/23 10:41 1trans-1,3-Dichloropropene 0.150 U 0.1501.00 ug/L 01/25/23 10:41 1Trichloroethene 0.520 U 0.5201.00 ug/L 01/25/23 10:41 1Trichlorofluoromethane 0.930 U 0.93025.0 ug/L 01/25/23 10:41 1Vinyl acetate 0.500 U 0.5001.00 ug/L 01/25/23 10:41 1Vinyl chloride 1.60 U 1.6010.0 ug/L 01/25/23 10:41 1Xylenes, Total 4-Bromofluorobenzene 100 72-119 01/25/23 10:41 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 98 01/25/23 10:41 1Dibromofluoromethane75-126 94 01/25/23 10:41 1Toluene-d8 (Surr)64-132 Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-609770/1002 Matrix: Water Prep Type: Total/NA Analysis Batch: 609770 1,1,1,2-Tetrachloroethane 50.0 45.93 ug/L 92 67 -131 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,1,1-Trichloroethane 50.0 42.84 ug/L 86 68 -130 1,1,2,2-Tetrachloroethane 50.0 46.06 ug/L 92 70 -131 1,1,2-Trichloroethane 50.0 46.52 ug/L 93 70 -130 1,1-Dichloroethane 50.0 45.52 ug/L 91 70 -130 1,1-Dichloroethene 50.0 42.10 ug/L 84 63 -134 1,1-Dichloropropene 50.0 45.54 ug/L 91 70 -130 1,2,3-Trichlorobenzene 50.0 60.19 ug/L 120 60 -138 1,2,3-Trichloropropane 50.0 45.84 ug/L 92 70 -130 1,2,4-Trichlorobenzene 50.0 57.08 ug/L 114 60 -140 1,2,4-Trimethylbenzene 50.0 46.14 ug/L 92 70 -130 1,2-Dibromoethane (EDB)50.0 47.66 ug/L 95 70 -130 1,2-Dichlorobenzene 50.0 49.38 ug/L 99 67 -130 1,2-Dichloroethane 50.0 43.90 ug/L 88 69 -130 1,2-Dichloropropane 50.0 46.77 ug/L 94 70 -130 1,3,5-Trimethylbenzene 50.0 44.48 ug/L 89 69 -130 1,3-Dichlorobenzene 50.0 48.18 ug/L 96 70 -130 1,3-Dichloropropane 50.0 47.88 ug/L 96 70 -130 1,4-Dichlorobenzene 50.0 47.59 ug/L 95 70 -130 2,2-Dichloropropane 50.0 46.18 ug/L 92 52 -135 Eurofins Pensacola Page 43 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 400-232047-1Client: 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 400-609770/1002 Matrix: Water Prep Type: Total/NA Analysis Batch: 609770 2-Butanone (MEK)200 183.4 ug/L 92 61 -145 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 2-Chlorotoluene 50.0 43.95 ug/L 88 70 -130 2-Hexanone 200 180.9 ug/L 90 65 -137 4-Chlorotoluene 50.0 44.03 ug/L 88 70 -130 4-Methyl-2-pentanone (MIBK)200 199.1 ug/L 100 69 -138 Acetone 200 186.5 ug/L 93 43 -160 Benzene 50.0 46.31 ug/L 93 70 -130 Bromobenzene 50.0 46.01 ug/L 92 70 -132 Bromochloromethane 50.0 49.79 ug/L 100 70 -130 Bromodichloromethane 50.0 46.64 ug/L 93 67 -133 Bromoform 50.0 46.96 ug/L 94 57 -140 Bromomethane 50.0 46.65 ug/L 93 10 -160 Carbon tetrachloride 50.0 42.24 ug/L 84 61 -137 Chlorobenzene 50.0 46.01 ug/L 92 70 -130 Chloroethane 50.0 41.21 ug/L 82 55 -141 Chloroform 50.0 44.50 ug/L 89 69 -130 Chloromethane 50.0 41.16 ug/L 82 58 -137 cis-1,2-Dichloroethene 50.0 44.31 ug/L 89 68 -130 cis-1,3-Dichloropropene 50.0 50.14 ug/L 100 69 -132 Dibromochloromethane 50.0 46.40 ug/L 93 67 -135 Dichlorodifluoromethane 50.0 42.97 ug/L 86 41 -146 Diisopropyl ether 50.0 47.80 ug/L 96 64 -132 Ethanol 2000 1418 ug/L 71 20 -160 Ethylbenzene 50.0 44.51 ug/L 89 70 -130 Isopropylbenzene 50.0 43.83 ug/L 88 70 -130 Methyl tert-butyl ether 50.0 49.39 ug/L 99 66 -130 Methylene Chloride 50.0 41.68 ug/L 83 66 -135 m-Xylene & p-Xylene 50.0 43.82 ug/L 88 70 -130 Naphthalene 50.0 60.97 ug/L 122 47 -149 n-Butylbenzene 50.0 46.85 ug/L 94 67 -130 N-Propylbenzene 50.0 44.78 ug/L 90 70 -130 o-Xylene 50.0 44.61 ug/L 89 70 -130 p-Cymene (p-Isopropyltoluene)50.0 44.89 ug/L 90 65 -130 sec-Butylbenzene 50.0 44.05 ug/L 88 66 -130 Styrene 50.0 44.81 ug/L 90 70 -130 tert-Butylbenzene 50.0 41.12 ug/L 82 64 -139 Tetrachloroethene 50.0 45.74 ug/L 91 65 -130 Toluene 50.0 43.56 ug/L 87 70 -130 trans-1,2-Dichloroethene 50.0 44.02 ug/L 88 70 -130 trans-1,3-Dichloropropene 50.0 46.63 ug/L 93 63 -130 Trichloroethene 50.0 47.27 ug/L 95 70 -130 Trichlorofluoromethane 50.0 46.07 ug/L 92 65 -138 Vinyl acetate 100 107.2 ug/L 107 26 -160 Vinyl chloride 50.0 47.72 ug/L 95 59 -136 Xylenes, Total 100 88.43 ug/L 88 70 -130 4-Bromofluorobenzene 72 -119 Surrogate 97 LCS LCS Qualifier Limits%Recovery Eurofins Pensacola Page 44 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 400-232047-1Client: 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 400-609770/1002 Matrix: Water Prep Type: Total/NA Analysis Batch: 609770 Dibromofluoromethane 75 -126 Surrogate 99 LCS LCS Qualifier Limits%Recovery 96Toluene-d8 (Surr)64 -132 Client Sample ID: Method BlankLab Sample ID: MB 400-609802/4 Matrix: Water Prep Type: Total/NA Analysis Batch: 609802 RL MDL 1,1,1,2-Tetrachloroethane 0.160 U 1.00 0.160 ug/L 01/25/23 12:14 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 0.180 U 0.1801.00 ug/L 01/25/23 12:14 11,1,1-Trichloroethane 0.500 U 0.5001.00 ug/L 01/25/23 12:14 11,1,2,2-Tetrachloroethane 0.210 U 0.2105.00 ug/L 01/25/23 12:14 11,1,2-Trichloroethane 0.500 U 0.5001.00 ug/L 01/25/23 12:14 11,1-Dichloroethane 0.500 U 0.5001.00 ug/L 01/25/23 12:14 11,1-Dichloroethene 0.500 U 0.5001.00 ug/L 01/25/23 12:14 11,1-Dichloropropene 0.900 U 0.9001.00 ug/L 01/25/23 12:14 11,2,3-Trichlorobenzene 0.840 U 0.8405.00 ug/L 01/25/23 12:14 11,2,3-Trichloropropane 0.820 U 0.8201.00 ug/L 01/25/23 12:14 11,2,4-Trichlorobenzene 0.820 U 0.8201.00 ug/L 01/25/23 12:14 11,2,4-Trimethylbenzene 0.230 U 0.2301.00 ug/L 01/25/23 12:14 11,2-Dibromoethane (EDB) 0.500 U 0.5001.00 ug/L 01/25/23 12:14 11,2-Dichlorobenzene 0.190 U 0.1901.00 ug/L 01/25/23 12:14 11,2-Dichloroethane 0.500 U 0.5001.00 ug/L 01/25/23 12:14 11,2-Dichloropropane 0.560 U 0.5601.00 ug/L 01/25/23 12:14 11,3,5-Trimethylbenzene 0.540 U 0.5401.00 ug/L 01/25/23 12:14 11,3-Dichlorobenzene 0.500 U 0.5001.00 ug/L 01/25/23 12:14 11,3-Dichloropropane 0.640 U 0.6401.00 ug/L 01/25/23 12:14 11,4-Dichlorobenzene 0.500 U 0.5001.00 ug/L 01/25/23 12:14 12,2-Dichloropropane 2.60 U 2.6025.0 ug/L 01/25/23 12:14 12-Butanone (MEK) 0.570 U 0.5701.00 ug/L 01/25/23 12:14 12-Chlorotoluene 1.40 U 1.4025.0 ug/L 01/25/23 12:14 12-Hexanone 0.560 U 0.5601.00 ug/L 01/25/23 12:14 14-Chlorotoluene 1.80 U 1.8025.0 ug/L 01/25/23 12:14 14-Methyl-2-pentanone (MIBK) 10.0 U 10.025.0 ug/L 01/25/23 12:14 1Acetone 0.130 U 0.1301.00 ug/L 01/25/23 12:14 1Benzene 0.540 U 0.5401.00 ug/L 01/25/23 12:14 1Bromobenzene 0.210 U 0.2101.00 ug/L 01/25/23 12:14 1Bromochloromethane 0.500 U 0.5001.00 ug/L 01/25/23 12:14 1Bromodichloromethane 0.250 U 0.2505.00 ug/L 01/25/23 12:14 1Bromoform 0.980 U 0.9801.00 ug/L 01/25/23 12:14 1Bromomethane 0.190 U 0.1901.00 ug/L 01/25/23 12:14 1Carbon tetrachloride 0.150 U 0.1501.00 ug/L 01/25/23 12:14 1Chlorobenzene 0.760 U 0.7601.00 ug/L 01/25/23 12:14 1Chloroethane 1.00 U 1.001.00 ug/L 01/25/23 12:14 1Chloroform 0.320 U 0.3201.00 ug/L 01/25/23 12:14 1Chloromethane 0.200 U 0.2001.00 ug/L 01/25/23 12:14 1cis-1,2-Dichloroethene 0.500 U 0.5005.00 ug/L 01/25/23 12:14 1cis-1,3-Dichloropropene 0.240 U 0.2401.00 ug/L 01/25/23 12:14 1Dibromochloromethane Eurofins Pensacola Page 45 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 400-232047-1Client: Terraquest Environmental Consultants, PC Project/Site: Perth Mini Mart Method: SM6200-B - Volatile Organic Compounds (Continued) Client Sample ID: Method BlankLab Sample ID: MB 400-609802/4 Matrix: Water Prep Type: Total/NA Analysis Batch: 609802 RL MDL Dichlorodifluoromethane 0.850 U 1.00 0.850 ug/L 01/25/23 12:14 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 0.200 U 0.2001.00 ug/L 01/25/23 12:14 1Diisopropyl ether 24.0 U 24.0100 ug/L 01/25/23 12:14 1Ethanol 0.500 U 0.5001.00 ug/L 01/25/23 12:14 1Ethylbenzene 0.530 U 0.5301.00 ug/L 01/25/23 12:14 1Isopropylbenzene 0.220 U 0.2201.00 ug/L 01/25/23 12:14 1Methyl tert-butyl ether 3.00 U 3.005.00 ug/L 01/25/23 12:14 1Methylene Chloride 0.630 U 0.6305.00 ug/L 01/25/23 12:14 1m-Xylene & p-Xylene 3.00 U 3.005.00 ug/L 01/25/23 12:14 1Naphthalene 0.760 U 0.7601.00 ug/L 01/25/23 12:14 1n-Butylbenzene 0.690 U 0.6901.00 ug/L 01/25/23 12:14 1N-Propylbenzene 0.600 U 0.6005.00 ug/L 01/25/23 12:14 1o-Xylene 0.710 U 0.7101.00 ug/L 01/25/23 12:14 1p-Cymene (p-Isopropyltoluene) 0.700 U 0.7001.00 ug/L 01/25/23 12:14 1sec-Butylbenzene 1.00 U 1.001.00 ug/L 01/25/23 12:14 1Styrene 0.630 U 0.6301.00 ug/L 01/25/23 12:14 1tert-Butylbenzene 0.900 U 0.9001.00 ug/L 01/25/23 12:14 1Tetrachloroethene 0.410 U 0.4101.00 ug/L 01/25/23 12:14 1Toluene 0.500 U 0.5001.00 ug/L 01/25/23 12:14 1trans-1,2-Dichloroethene 0.200 U 0.2005.00 ug/L 01/25/23 12:14 1trans-1,3-Dichloropropene 0.150 U 0.1501.00 ug/L 01/25/23 12:14 1Trichloroethene 0.520 U 0.5201.00 ug/L 01/25/23 12:14 1Trichlorofluoromethane 0.930 U 0.93025.0 ug/L 01/25/23 12:14 1Vinyl acetate 0.500 U 0.5001.00 ug/L 01/25/23 12:14 1Vinyl chloride 1.60 U 1.6010.0 ug/L 01/25/23 12:14 1Xylenes, Total 4-Bromofluorobenzene 87 72-119 01/25/23 12:14 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 114 01/25/23 12:14 1Dibromofluoromethane75-126 95 01/25/23 12:14 1Toluene-d8 (Surr)64-132 Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-609802/1002 Matrix: Water Prep Type: Total/NA Analysis Batch: 609802 1,1,1,2-Tetrachloroethane 50.0 57.56 ug/L 115 67 -131 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,1,1-Trichloroethane 50.0 61.48 ug/L 123 68 -130 1,1,2,2-Tetrachloroethane 50.0 51.03 ug/L 102 70 -131 1,1,2-Trichloroethane 50.0 52.88 ug/L 106 70 -130 1,1-Dichloroethane 50.0 60.96 ug/L 122 70 -130 1,1-Dichloroethene 50.0 60.77 ug/L 122 63 -134 1,1-Dichloropropene 50.0 59.53 ug/L 119 70 -130 1,2,3-Trichlorobenzene 50.0 54.43 ug/L 109 60 -138 1,2,3-Trichloropropane 50.0 51.64 ug/L 103 70 -130 1,2,4-Trichlorobenzene 50.0 53.24 ug/L 106 60 -140 1,2,4-Trimethylbenzene 50.0 54.43 ug/L 109 70 -130 1,2-Dibromoethane (EDB)50.0 53.39 ug/L 107 70 -130 Eurofins Pensacola Page 46 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 400-232047-1Client: 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 400-609802/1002 Matrix: Water Prep Type: Total/NA Analysis Batch: 609802 1,2-Dichlorobenzene 50.0 58.21 ug/L 116 67 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,2-Dichloroethane 50.0 60.20 ug/L 120 69 -130 1,2-Dichloropropane 50.0 59.52 ug/L 119 70 -130 1,3,5-Trimethylbenzene 50.0 53.87 ug/L 108 69 -130 1,3-Dichlorobenzene 50.0 58.50 ug/L 117 70 -130 1,3-Dichloropropane 50.0 52.29 ug/L 105 70 -130 1,4-Dichlorobenzene 50.0 58.19 ug/L 116 70 -130 2,2-Dichloropropane 50.0 56.68 ug/L 113 52 -135 2-Butanone (MEK)200 218.7 ug/L 109 61 -145 2-Chlorotoluene 50.0 49.51 ug/L 99 70 -130 2-Hexanone 200 179.7 ug/L 90 65 -137 4-Chlorotoluene 50.0 53.86 ug/L 108 70 -130 4-Methyl-2-pentanone (MIBK)200 213.8 ug/L 107 69 -138 Acetone 200 211.6 ug/L 106 43 -160 Benzene 50.0 60.60 ug/L 121 70 -130 Bromobenzene 50.0 54.52 ug/L 109 70 -132 Bromochloromethane 50.0 65.61 *+ug/L 131 70 -130 Bromodichloromethane 50.0 61.61 ug/L 123 67 -133 Bromoform 50.0 54.50 ug/L 109 57 -140 Bromomethane 25.0 83.09 *+ug/L 332 10 -160 Carbon tetrachloride 50.0 64.51 ug/L 129 61 -137 Chlorobenzene 50.0 56.97 ug/L 114 70 -130 Chloroethane 25.0 26.56 ug/L 106 55 -141 Chloroform 50.0 62.04 ug/L 124 69 -130 Chloromethane 25.0 25.62 ug/L 102 58 -137 cis-1,2-Dichloroethene 50.0 58.85 ug/L 118 68 -130 cis-1,3-Dichloropropene 50.0 54.86 ug/L 110 69 -132 Dibromochloromethane 50.0 54.52 ug/L 109 67 -135 Dichlorodifluoromethane 25.0 29.09 ug/L 116 41 -146 Diisopropyl ether 25.0 27.21 ug/L 109 64 -132 Ethanol 1000 1192 ug/L 119 20 -160 Ethylbenzene 50.0 53.93 ug/L 108 70 -130 Isopropylbenzene 50.0 53.76 ug/L 108 70 -130 Methyl tert-butyl ether 50.0 52.60 ug/L 105 66 -130 Methylene Chloride 50.0 65.37 ug/L 131 66 -135 m-Xylene & p-Xylene 50.0 53.16 ug/L 106 70 -130 Naphthalene 50.0 43.65 ug/L 87 47 -149 n-Butylbenzene 50.0 49.61 ug/L 99 67 -130 N-Propylbenzene 50.0 54.46 ug/L 109 70 -130 o-Xylene 50.0 51.66 ug/L 103 70 -130 p-Cymene (p-Isopropyltoluene)50.0 54.36 ug/L 109 65 -130 sec-Butylbenzene 50.0 53.70 ug/L 107 66 -130 Styrene 50.0 55.03 ug/L 110 70 -130 tert-Butylbenzene 50.0 51.01 ug/L 102 64 -139 Tetrachloroethene 50.0 60.19 ug/L 120 65 -130 Toluene 50.0 52.26 ug/L 105 70 -130 trans-1,2-Dichloroethene 50.0 62.12 ug/L 124 70 -130 trans-1,3-Dichloropropene 50.0 47.93 ug/L 96 63 -130 Trichloroethene 50.0 66.54 *+ug/L 133 70 -130 Eurofins Pensacola Page 47 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 400-232047-1Client: 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 400-609802/1002 Matrix: Water Prep Type: Total/NA Analysis Batch: 609802 Trichlorofluoromethane 25.0 36.38 *+ug/L 146 65 -138 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Vinyl acetate 50.0 49.09 ug/L 98 26 -160 Vinyl chloride 25.0 35.35 *+ug/L 141 59 -136 Xylenes, Total 100 104.8 ug/L 105 70 -130 4-Bromofluorobenzene 72 -119 Surrogate 83 LCS LCS Qualifier Limits%Recovery 109Dibromofluoromethane 75 -126 87Toluene-d8 (Surr)64 -132 Client Sample ID: Method BlankLab Sample ID: MB 400-610024/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 610024 RL MDL Bromomethane 0.980 U 1.00 0.980 ug/L 01/26/23 15:23 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 1.00 U 1.001.00 ug/L 01/26/23 15:23 1Chloroform 0.320 U 0.3201.00 ug/L 01/26/23 15:23 1Chloromethane 4-Bromofluorobenzene 101 72-119 01/26/23 15:23 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 101 01/26/23 15:23 1Dibromofluoromethane75-126 94 01/26/23 15:23 1Toluene-d8 (Surr)64-132 Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-610024/1002 Matrix: Water Prep Type: Total/NA Analysis Batch: 610024 Bromomethane 50.0 52.22 ug/L 104 10 -160 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Chloroform 50.0 41.89 ug/L 84 69 -130 Chloromethane 50.0 39.61 ug/L 79 58 -137 4-Bromofluorobenzene 72 -119 Surrogate 97 LCS LCS Qualifier Limits%Recovery 98Dibromofluoromethane 75 -126 96Toluene-d8 (Surr)64 -132 Method: 504.1 - EDB, DBCP and 1,2,3-TCP (GC) Client Sample ID: Method BlankLab Sample ID: MB 400-610674/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 610718 Prep Batch: 610674 RL MDL 1,2-Dibromoethane (EDB)0.0150 U 0.0200 0.0150 ug/L 02/01/23 09:49 02/01/23 18:20 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Eurofins Pensacola Page 48 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 400-232047-1Client: Terraquest Environmental Consultants, PC Project/Site: Perth Mini Mart Method: 504.1 - EDB, DBCP and 1,2,3-TCP (GC) (Continued) Client Sample ID: Method BlankLab Sample ID: MB 400-610674/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 610718 Prep Batch: 610674 4-Bromofluorobenzene 112 56-150 02/01/23 18:20 1 MB MB Surrogate 02/01/23 09:49 Dil FacPreparedAnalyzedQualifierLimits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-610674/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 610718 Prep Batch: 610674 1,2-Dibromoethane (EDB)0.101 0.09910 ug/L 98 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 4-Bromofluorobenzene 56 -150 Surrogate 122 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 400-610674/3-A Matrix: Water Prep Type: Total/NA Analysis Batch: 610718 Prep Batch: 610674 1,2-Dibromoethane (EDB)0.101 0.09558 ug/L 95 70 -130 4 10 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD 4-Bromofluorobenzene 56 -150 Surrogate 122 LCSD LCSD Qualifier Limits%Recovery Eurofins Pensacola Page 49 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Terraquest Environmental Consultants, PC Job ID: 400-232047-1 Project/Site: Perth Mini Mart Client Sample ID: MW1 Lab Sample ID: 400-232047-1 Matrix: WaterDate Collected: 01/18/23 12:24 Date Received: 01/20/23 09:04 Analysis SM6200-B BEP01/26/23 21:5710 EET PEN610024 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5 mL 5 mL Analysis SM6200-B 10 609802 01/25/23 13:58 BPO EET PENTotal/NA 5 mL 5 mL Client Sample ID: MW4 Lab Sample ID: 400-232047-2 Matrix: WaterDate Collected: 01/18/23 12:21 Date Received: 01/20/23 09:04 Analysis SM6200-B BEP01/26/23 22:2110 EET PEN610024 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5 mL 5 mL Analysis SM6200-B 10 609802 01/25/23 14:19 BPO EET PENTotal/NA 5 mL 5 mL Client Sample ID: MW5 Lab Sample ID: 400-232047-3 Matrix: WaterDate Collected: 01/18/23 12:13 Date Received: 01/20/23 09:04 Analysis SM6200-B BPO01/25/23 15:21200 EET PEN609802 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: MW6 Lab Sample ID: 400-232047-4 Matrix: WaterDate Collected: 01/18/23 12:17 Date Received: 01/20/23 09:04 Analysis SM6200-B BEP01/27/23 00:24100 EET PEN610024 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5 mL 5 mL Analysis SM6200-B 100 609802 01/25/23 14:40 BPO EET PENTotal/NA 5 mL 5 mL Client Sample ID: MW7 Lab Sample ID: 400-232047-5 Matrix: WaterDate Collected: 01/18/23 12:04 Date Received: 01/20/23 09:04 Analysis SM6200-B BPO01/25/23 16:471 EET PEN609802 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: MW8 Lab Sample ID: 400-232047-6 Matrix: WaterDate Collected: 01/18/23 12:10 Date Received: 01/20/23 09:04 Analysis SM6200-B BPO01/25/23 17:081 EET PEN609802 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: MW9 Lab Sample ID: 400-232047-7 Matrix: WaterDate Collected: 01/18/23 11:40 Date Received: 01/20/23 09:04 Analysis SM6200-B BPO01/25/23 17:291 EET PEN609802 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 Page 50 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Terraquest Environmental Consultants, PC Job ID: 400-232047-1 Project/Site: Perth Mini Mart Client Sample ID: MW10 Lab Sample ID: 400-232047-8 Matrix: WaterDate Collected: 01/18/23 11:30 Date Received: 01/20/23 09:04 Analysis SM6200-B BPO01/25/23 17:501 EET PEN609802 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: MW11 Lab Sample ID: 400-232047-9 Matrix: WaterDate Collected: 01/18/23 12:08 Date Received: 01/20/23 09:04 Analysis SM6200-B BPO01/25/23 13:172 EET PEN609802 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: MW13 Lab Sample ID: 400-232047-10 Matrix: WaterDate Collected: 01/18/23 12:01 Date Received: 01/20/23 09:04 Analysis SM6200-B BPO01/25/23 13:375 EET PEN609802 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: MW14 Lab Sample ID: 400-232047-11 Matrix: WaterDate Collected: 01/18/23 11:50 Date Received: 01/20/23 09:04 Analysis SM6200-B BPO01/25/23 18:101 EET PEN609802 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: WSW1 Lab Sample ID: 400-232047-12 Matrix: WaterDate Collected: 01/18/23 12:30 Date Received: 01/20/23 09:04 Analysis SM6200-B BEP01/26/23 15:481 EET PEN610024 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5 mL 5 mL Analysis SM6200-B 1 609802 01/25/23 18:31 BPO EET PENTotal/NA 5 mL 5 mL Prep 504.1 610674 02/01/23 09:49 DS EET PENTotal/NA 34.8 mL 35 mL Analysis 504.1 1 610718 02/01/23 19:21 DS EET PENTotal/NA Client Sample ID: WSW2 Lab Sample ID: 400-232047-13 Matrix: WaterDate Collected: 01/18/23 12:55 Date Received: 01/20/23 09:04 Analysis SM6200-B BPO01/25/23 18:521 EET PEN609802 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5 mL 5 mL Prep 504.1 610674 02/01/23 09:49 DS EET PENTotal/NA 34.7 mL 35 mL Analysis 504.1 1 610718 02/01/23 19:42 DS EET PENTotal/NA Eurofins Pensacola Page 51 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Terraquest Environmental Consultants, PC Job ID: 400-232047-1 Project/Site: Perth Mini Mart Client Sample ID: WSW4 Lab Sample ID: 400-232047-14 Matrix: WaterDate Collected: 01/18/23 13:16 Date Received: 01/20/23 09:04 Analysis SM6200-B BPO01/25/23 19:131 EET PEN609802 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5 mL 5 mL Prep 504.1 610674 02/01/23 09:49 DS EET PENTotal/NA 34.6 mL 35 mL Analysis 504.1 1 610718 02/01/23 20:02 DS EET PENTotal/NA Client Sample ID: MW12 Lab Sample ID: 400-232072-1 Matrix: WaterDate Collected: 01/20/23 12:00 Date Received: 01/21/23 09:23 Analysis SM6200-B BEP01/25/23 16:265 EET PEN609770 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 400-609770/4 Matrix: WaterDate Collected: N/A Date Received: N/A Analysis SM6200-B BEP01/25/23 10:411 EET PEN609770 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 400-609802/4 Matrix: WaterDate Collected: N/A Date Received: N/A Analysis SM6200-B BPO01/25/23 12:141 EET PEN609802 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 400-610024/6 Matrix: WaterDate Collected: N/A Date Received: N/A Analysis SM6200-B BEP01/26/23 15:231 EET PEN610024 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 400-610674/1-A Matrix: WaterDate Collected: N/A Date Received: N/A Prep 504.1 DS02/01/23 09:49 EET PEN610674 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 35 mL 35 mL Analysis 504.1 1 610718 02/01/23 18:20 DS EET PENTotal/NA Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-609770/1002 Matrix: WaterDate Collected: N/A Date Received: N/A Analysis SM6200-B BEP01/25/23 07:471 EET PEN609770 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 Page 52 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Terraquest Environmental Consultants, PC Job ID: 400-232047-1 Project/Site: Perth Mini Mart Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-609802/1002 Matrix: WaterDate Collected: N/A Date Received: N/A Analysis SM6200-B BPO01/25/23 10:581 EET PEN609802 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 400-610024/1002 Matrix: WaterDate Collected: N/A Date Received: N/A Analysis SM6200-B BEP01/26/23 14:221 EET PEN610024 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 400-610674/2-A Matrix: WaterDate Collected: N/A Date Received: N/A Prep 504.1 DS02/01/23 09:49 EET PEN610674 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 35 mL 35 mL Analysis 504.1 1 610718 02/01/23 18:41 DS EET PENTotal/NA Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 400-610674/3-A Matrix: WaterDate Collected: N/A Date Received: N/A Prep 504.1 DS02/01/23 09:49 EET PEN610674 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 35 mL 35 mL Analysis 504.1 1 610718 02/01/23 19:01 DS EET PENTotal/NA Laboratory References: EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL (850)474-1001 Eurofins Pensacola Page 53 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Method Summary Job ID: 400-232047-1Client: Terraquest Environmental Consultants, PC Project/Site: Perth Mini Mart Method Method Description LaboratoryProtocol SMSM6200-B Volatile Organic Compounds EET PEN EPA-DW504.1 EDB, DBCP and 1,2,3-TCP (GC)EET PEN SW8465030BPurge and Trap EET PEN EPA-DW504.1 Microextraction EET PEN Protocol References: EPA-DW = "Methods For The Determination Of Organic Compounds In Drinking Water", EPA/600/4-88/039, December 1988 And Its Supplements. 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 (850)474-1001 Eurofins Pensacola Page 54 of 60 2/2/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15