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HomeMy WebLinkAboutMO-5392_18748_G_WSW_20230127_PAYNEHREREQ January 27, 2023 MEMORANDUM TO: David Lilley, Environmental Toxicologist, Division of Waste Management, 1646 Mail Service Center, Raleigh, NC 27699-1646 (FAX (919) 733-4811) FROM: Brad Newton, Mooresville Regional Office, UST Section SUBJECT: Request for Health Risk Evaluation of Water Supply Tracking ID: Incident Number: 18748 Enclosed please find the analytical results for a water sample collected on January 9, 2023, from the Payne water supply well, identified as WSW 9, located at 523 Oates Road, Gastonia, Gaston 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): Payne Sample Analytical Results , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-011-0100 00087 Geological Resources, Inc. 3502 Hayes Road Scott Ball Monroe Danyale Love Project Manager GRI # 2451 Received : 01/11/2023 Gate 402 Report Date : 01/18/2023 Sample ID : Lab No : Sampled:WSW-9 97288 Matrix: 1/9/2023 12:50 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V28979 01/17/23 14:00 <1.80 µg/L 1.80 10.0Acetone 1 01/18/23 07:34 V28980MSA <0.180 µg/L 0.180 0.500Benzene 1 01/18/23 07:34 V28980MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 01/18/23 07:34 V28980MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 01/18/23 07:34 V28980MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 01/18/23 07:34 V28980MSA <1.50 µg/L 1.50 5.00Bromoform 1 01/18/23 07:34 V28980MSA <0.280 µg/L 0.280 1.00Bromomethane 1 01/18/23 07:34 V28980MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 01/18/23 07:34 V28980MSA <0.200 µg/L 0.200 0.500 sec-Butyl benzene 1 01/18/23 07:34 V28980MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 01/18/23 07:34 V28980MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 01/18/23 07:34 V28980MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 01/18/23 07:34 V28980MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 01/18/23 07:34 V28980MSA <0.430 µg/L 0.430 1.00Chloroethane 1 01/18/23 07:34 V28980MSA 0.488 J µg/L 0.220 0.500Chloroform 1 01/18/23 07:34 V28980MSA <0.220 µg/L 0.220 0.500 Chloromethane 1 01/18/23 07:34 V28980MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 01/18/23 07:34 V28980MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 01/18/23 07:34 V28980MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 01/18/23 07:34 V28980MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 01/18/23 07:34 V28980MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 01/18/23 07:34 V28980MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 01/18/23 07:34 V28980MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 10 of 29 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-011-0100 00087 Geological Resources, Inc. 3502 Hayes Road Scott Ball Monroe Danyale Love Project Manager GRI # 2451 Received : 01/11/2023 Gate 402 Report Date : 01/18/2023 Sample ID : Lab No : Sampled:WSW-9 97288 Matrix: 1/9/2023 12:50 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V28979 01/17/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 01/18/23 07:34 V28980MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 01/18/23 07:34 V28980MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 01/18/23 07:34 V28980MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 01/18/23 07:34 V28980MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 01/18/23 07:34 V28980MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 01/18/23 07:34 V28980MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 01/18/23 07:34 V28980MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 01/18/23 07:34 V28980MSA <0.180 µg/L 0.180 0.500 trans-1,2-Dichloroethene 1 01/18/23 07:34 V28980MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 01/18/23 07:34 V28980MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 01/18/23 07:34 V28980MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 01/18/23 07:34 V28980MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 01/18/23 07:34 V28980MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 01/18/23 07:34 V28980MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 01/18/23 07:34 V28980MSA 53.9 J µg/L 42.0 200 Ethanol 1 01/18/23 07:34 V28980MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 01/18/23 07:34 V28980MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 01/18/23 07:34 V28980MSA <0.380 µg/L 0.380 1.002-Hexanone 1 01/18/23 07:34 V28980MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 01/18/23 07:34 V28980MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 01/18/23 07:34 V28980MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 01/18/23 07:34 V28980MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 11 of 29 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-011-0100 00087 Geological Resources, Inc. 3502 Hayes Road Scott Ball Monroe Danyale Love Project Manager GRI # 2451 Received : 01/11/2023 Gate 402 Report Date : 01/18/2023 Sample ID : Lab No : Sampled:WSW-9 97288 Matrix: 1/9/2023 12:50 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V28979 01/17/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 01/18/23 07:34 V28980MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 01/18/23 07:34 V28980MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 01/18/23 07:34 V28980MSA <0.470 µg/L 0.470 1.00Naphthalene 1 01/18/23 07:34 V28980MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 01/18/23 07:34 V28980MSA <0.220 µg/L 0.220 0.500Styrene 1 01/18/23 07:34 V28980MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 01/18/23 07:34 V28980MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 01/18/23 07:34 V28980MSA 0.458 J µg/L 0.220 0.500 Tetrachloroethene 1 01/18/23 07:34 V28980MSA <0.220 µg/L 0.220 0.500Toluene 1 01/18/23 07:34 V28980MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 01/18/23 07:34 V28980MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 01/18/23 07:34 V28980MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 01/18/23 07:34 V28980MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 01/18/23 07:34 V28980MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 01/18/23 07:34 V28980MSA <0.180 µg/L 0.180 0.500 Trichlorofluoromethane 1 01/18/23 07:34 V28980MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 01/18/23 07:34 V28980MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 01/18/23 07:34 V28980MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 01/18/23 07:34 V28980MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 01/18/23 07:34 V28980MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 01/18/23 07:34 V28980MSA <0.210 µg/L 0.210 0.500o-Xylene 1 01/18/23 07:34 V28980MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 12 of 29 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-011-0100 00087 Geological Resources, Inc. 3502 Hayes Road Scott Ball Monroe Danyale Love Project Manager GRI # 2451 Received : 01/11/2023 Gate 402 Report Date : 01/18/2023 Sample ID : Lab No : Sampled:WSW-9 97288 Matrix: 1/9/2023 12:50 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V28979 01/17/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 01/18/23 07:34 V28980MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 01/18/23 07:34 V28980 Surrogate: 4-Bromofluorobenzene 89.6 Limits: 70-130%01/18/23 07:341 MSA V28980 Surrogate: Dibromofluoromethane 96.4 Limits: 70-130%01/18/23 07:341 MSA V28980 Surrogate: 1,2-Dichloroethane - d4 96.6 Limits: 70-130%01/18/23 07:341 MSA V28980 Surrogate: Toluene-d8 96.4 Limits: 70-130%01/18/23 07:341 MSA V28980 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 13 of 29 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-011-0100 00087 Geological Resources, Inc. 3502 Hayes Road Scott Ball Monroe Danyale Love Project Manager GRI # 2451 Received : 01/11/2023 Gate 402 Report Date : 01/18/2023 Sample ID : Lab No : Sampled:TB 97290 Matrix: 1/9/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V28979 01/17/23 14:00 3.22 J µg/L 1.80 10.0Acetone 1 01/18/23 04:13 V28980MSA <0.180 µg/L 0.180 0.500Benzene 1 01/18/23 04:13 V28980MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 01/18/23 04:13 V28980MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 01/18/23 04:13 V28980MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 01/18/23 04:13 V28980MSA <1.50 µg/L 1.50 5.00Bromoform 1 01/18/23 04:13 V28980MSA <0.280 µg/L 0.280 1.00Bromomethane 1 01/18/23 04:13 V28980MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 01/18/23 04:13 V28980MSA <0.200 µg/L 0.200 0.500 sec-Butyl benzene 1 01/18/23 04:13 V28980MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 01/18/23 04:13 V28980MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 01/18/23 04:13 V28980MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 01/18/23 04:13 V28980MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 01/18/23 04:13 V28980MSA <0.430 µg/L 0.430 1.00Chloroethane 1 01/18/23 04:13 V28980MSA <0.220 µg/L 0.220 0.500Chloroform 1 01/18/23 04:13 V28980MSA <0.220 µg/L 0.220 0.500 Chloromethane 1 01/18/23 04:13 V28980MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 01/18/23 04:13 V28980MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 01/18/23 04:13 V28980MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 01/18/23 04:13 V28980MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 01/18/23 04:13 V28980MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 01/18/23 04:13 V28980MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 01/18/23 04:13 V28980MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 18 of 29 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-011-0100 00087 Geological Resources, Inc. 3502 Hayes Road Scott Ball Monroe Danyale Love Project Manager GRI # 2451 Received : 01/11/2023 Gate 402 Report Date : 01/18/2023 Sample ID : Lab No : Sampled:TB 97290 Matrix: 1/9/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V28979 01/17/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 01/18/23 04:13 V28980MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 01/18/23 04:13 V28980MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 01/18/23 04:13 V28980MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 01/18/23 04:13 V28980MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 01/18/23 04:13 V28980MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 01/18/23 04:13 V28980MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 01/18/23 04:13 V28980MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 01/18/23 04:13 V28980MSA <0.180 µg/L 0.180 0.500 trans-1,2-Dichloroethene 1 01/18/23 04:13 V28980MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 01/18/23 04:13 V28980MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 01/18/23 04:13 V28980MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 01/18/23 04:13 V28980MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 01/18/23 04:13 V28980MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 01/18/23 04:13 V28980MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 01/18/23 04:13 V28980MSA <42.0 µg/L 42.0 200 Ethanol 1 01/18/23 04:13 V28980MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 01/18/23 04:13 V28980MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 01/18/23 04:13 V28980MSA <0.380 µg/L 0.380 1.002-Hexanone 1 01/18/23 04:13 V28980MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 01/18/23 04:13 V28980MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 01/18/23 04:13 V28980MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 01/18/23 04:13 V28980MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 19 of 29 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-011-0100 00087 Geological Resources, Inc. 3502 Hayes Road Scott Ball Monroe Danyale Love Project Manager GRI # 2451 Received : 01/11/2023 Gate 402 Report Date : 01/18/2023 Sample ID : Lab No : Sampled:TB 97290 Matrix: 1/9/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V28979 01/17/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 01/18/23 04:13 V28980MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 01/18/23 04:13 V28980MSA 0.551 J µg/L 0.330 2.00Methylene Chloride 1 01/18/23 04:13 V28980MSA <0.470 µg/L 0.470 1.00Naphthalene 1 01/18/23 04:13 V28980MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 01/18/23 04:13 V28980MSA <0.220 µg/L 0.220 0.500Styrene 1 01/18/23 04:13 V28980MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 01/18/23 04:13 V28980MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 01/18/23 04:13 V28980MSA <0.220 µg/L 0.220 0.500 Tetrachloroethene 1 01/18/23 04:13 V28980MSA <0.220 µg/L 0.220 0.500Toluene 1 01/18/23 04:13 V28980MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 01/18/23 04:13 V28980MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 01/18/23 04:13 V28980MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 01/18/23 04:13 V28980MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 01/18/23 04:13 V28980MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 01/18/23 04:13 V28980MSA <0.180 µg/L 0.180 0.500 Trichlorofluoromethane 1 01/18/23 04:13 V28980MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 01/18/23 04:13 V28980MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 01/18/23 04:13 V28980MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 01/18/23 04:13 V28980MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 01/18/23 04:13 V28980MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 01/18/23 04:13 V28980MSA <0.210 µg/L 0.210 0.500o-Xylene 1 01/18/23 04:13 V28980MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 20 of 29 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-011-0100 00087 Geological Resources, Inc. 3502 Hayes Road Scott Ball Monroe Danyale Love Project Manager GRI # 2451 Received : 01/11/2023 Gate 402 Report Date : 01/18/2023 Sample ID : Lab No : Sampled:TB 97290 Matrix: 1/9/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V28979 01/17/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 01/18/23 04:13 V28980MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 01/18/23 04:13 V28980 Surrogate: 4-Bromofluorobenzene 93.4 Limits: 70-130%01/18/23 04:131 MSA V28980 Surrogate: Dibromofluoromethane 97.4 Limits: 70-130%01/18/23 04:131 MSA V28980 Surrogate: 1,2-Dichloroethane - d4 92.4 Limits: 70-130%01/18/23 04:131 MSA V28980 Surrogate: Toluene-d8 109 Limits: 70-130%01/18/23 04:131 MSA V28980 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 21 of 29 Quality Control Data 23-011-0100Report No: Project Description: Client ID:Geological Resources, Inc. Gate 402 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V28980QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V28979 Associated Lab Samples: 97287, 97288, 97289, 97290 LRB-V28979 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 01/18/23 03:4810.01.80<1.80µg/LAcetone 01/18/23 03:480.5000.180<0.180µg/LBenzene 01/18/23 03:480.5000.210<0.210µg/LBromobenzene 01/18/23 03:481.000.420<0.420µg/LBromochloromethane 01/18/23 03:480.5000.160<0.160µg/LBromodichloromethane 01/18/23 03:485.001.50<1.50µg/LBromoform 01/18/23 03:481.000.280<0.280µg/LBromomethane 01/18/23 03:480.5000.180<0.180µg/Ln-Butylbenzene 01/18/23 03:480.5000.200<0.200µg/Lsec-Butyl benzene 01/18/23 03:482.000.920<0.920µg/Ltert-Butyl benzene 01/18/23 03:480.5000.180<0.180µg/LCarbon Tetrachloride 01/18/23 03:480.5000.190<0.190µg/LChlorobenzene 01/18/23 03:480.5000.190<0.190µg/LChlorodibromomethane 01/18/23 03:481.000.430<0.430µg/LChloroethane 01/18/23 03:480.5000.220<0.220µg/LChloroform 01/18/23 03:480.5000.220<0.220µg/LChloromethane 01/18/23 03:480.5000.200<0.200µg/L2-Chlorotoluene 01/18/23 03:480.5000.200<0.200µg/L4-Chlorotoluene 01/18/23 03:480.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE) 01/18/23 03:482.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane 01/18/23 03:480.5000.200<0.200µg/L1,2-Dibromoethane 01/18/23 03:480.5000.230<0.230µg/LDibromomethane 01/18/23 03:480.5000.220<0.220µg/L1,2-Dichlorobenzene 01/18/23 03:480.5000.190<0.190µg/L1,3-Dichlorobenzene 01/18/23 03:480.5000.210<0.210µg/L1,4-Dichlorobenzene 01/18/23 03:485.001.20<1.20µg/LDichlorodifluoromethane 01/18/23 03:480.5000.240<0.240µg/L1,1-Dichloroethane Page 1 of 6Date:01/18/2023 05:32 PM Page 22 of 29 Quality Control Data 23-011-0100Report No: Project Description: Client ID:Geological Resources, Inc. Gate 402 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V28980QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V28979 Associated Lab Samples: 97287, 97288, 97289, 97290 LRB-V28979 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 01/18/23 03:480.5000.150<0.150µg/L1,2-Dichloroethane 01/18/23 03:480.5000.150<0.150µg/L1,1-Dichloroethene 01/18/23 03:480.5000.200<0.200µg/Lcis-1,2-Dichloroethene 01/18/23 03:480.5000.180<0.180µg/Ltrans-1,2-Dichloroethene 01/18/23 03:480.5000.190<0.190µg/L1,2-Dichloropropane 01/18/23 03:480.5000.130<0.130µg/L1,3-Dichloropropane 01/18/23 03:482.000.210<0.210µg/L2,2-Dichloropropane 01/18/23 03:480.5000.200<0.200µg/L1,1-Dichloropropene 01/18/23 03:480.5000.210<0.210µg/Lcis-1,3-Dichloropropene 01/18/23 03:480.5000.150<0.150µg/Ltrans-1,3-Dichloropropene 01/18/23 03:4820042.0<42.0µg/LEthanol 01/18/23 03:480.5000.170<0.170µg/LEthylbenzene 01/18/23 03:483.000.350<0.350µg/LHexachlorobutadiene 01/18/23 03:481.000.380<0.380µg/L2-Hexanone 01/18/23 03:480.5000.180<0.180µg/LIsopropylbenzene 01/18/23 03:480.5000.089<0.089µg/L4-Isopropyl toluene 01/18/23 03:485.000.710<0.710µg/LMethyl Ethyl Ketone (MEK) 01/18/23 03:481.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 01/18/23 03:481.000.078<0.078µg/L4-Methyl-2-Pentanone 01/18/23 03:482.000.330<0.330µg/LMethylene Chloride 01/18/23 03:481.000.470<0.470µg/LNaphthalene 01/18/23 03:480.5000.190<0.190µg/Ln-Propylbenzene 01/18/23 03:480.5000.220<0.220µg/LStyrene 01/18/23 03:480.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane 01/18/23 03:480.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane 01/18/23 03:480.5000.220<0.220µg/LTetrachloroethene 01/18/23 03:480.5000.220<0.220µg/LToluene Page 2 of 6Date:01/18/2023 05:32 PM Page 23 of 29 Quality Control Data 23-011-0100Report No: Project Description: Client ID:Geological Resources, Inc. Gate 402 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V28980QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V28979 Associated Lab Samples: 97287, 97288, 97289, 97290 LRB-V28979 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 01/18/23 03:480.5000.380<0.380µg/L1,2,3-Trichlorobenzene 01/18/23 03:480.5000.310<0.310µg/L1,2,4-Trichlorobenzene 01/18/23 03:480.5000.160<0.160µg/L1,1,1-Trichloroethane 01/18/23 03:480.5000.096<0.096µg/L1,1,2-Trichloroethane 01/18/23 03:480.5000.180<0.180µg/LTrichloroethene 01/18/23 03:480.5000.180<0.180µg/LTrichlorofluoromethane 01/18/23 03:480.5000.270<0.270µg/L1,2,3-Trichloropropane 01/18/23 03:480.5000.190<0.190µg/L1,2,4-Trimethylbenzene 01/18/23 03:480.5000.180<0.180µg/L1,3,5-Trimethylbenzene 01/18/23 03:485.001.00<1.00µg/LVinyl Acetate 01/18/23 03:480.5000.170<0.170µg/LVinyl Chloride 01/18/23 03:480.5000.210<0.210µg/Lo-Xylene 01/18/23 03:481.000.420<0.420µg/Lm,p-Xylene 01/18/23 03:484-Bromofluorobenzene (S)102 70-130 01/18/23 03:48Dibromofluoromethane (S)94.8 70-130 01/18/23 03:481,2-Dichloroethane - d4 (S)94.0 70-130 01/18/23 03:48Toluene-d8 (S)98.4 70-130 LCS-V28979 LCSD-V28979Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 28.3 70.786.234.540.0µg/LAcetone 40-160 19.7 20.0 20.6 10310220.420.0µg/LBenzene 70-130 0.9 20.0 21.9 11010220.320.0µg/LBromobenzene 70-130 7.5 20.0 21.5 10810721.420.0µg/LBromochloromethane 70-130 0.4 20.0 19.9 99.510120.220.0µg/LBromodichloromethane 70-130 1.4 20.0 Page 3 of 6Date:01/18/2023 05:32 PM Page 24 of 29 Quality Control Data 23-011-0100Report No: Project Description: Client ID:Geological Resources, Inc. Gate 402 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V28980QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V28979 LCS-V28979 LCSD-V28979Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 21.1 10610721.420.0µg/LBromoform 70-130 1.4 20.0 17.6 88.089.517.920.0µg/LBromomethane 60-140 1.6 20.0 21.1 10610420.720.0µg/Ln-Butylbenzene 70-130 1.9 20.0 21.0 10510420.720.0µg/Lsec-Butyl benzene 70-130 1.4 20.0 21.6 10810621.120.0µg/Ltert-Butyl benzene 70-130 2.3 20.0 18.9 94.511923.720.0µg/LCarbon Tetrachloride 70-130 22.5*20.0 20.9 10510821.620.0µg/LChlorobenzene 70-130 3.2 20.0 18.3 91.510020.020.0µg/LChlorodibromomethane 70-130 8.8 20.0 21.4 10711723.420.0µg/LChloroethane 60-140 8.9 20.0 20.9 10510721.420.0µg/LChloroform 70-130 2.3 20.0 20.1 10110721.420.0µg/LChloromethane 60-140 6.2 20.0 21.9 11010020.020.0µg/L2-Chlorotoluene 70-130 9.0 20.0 21.8 10999.519.920.0µg/L4-Chlorotoluene 70-130 9.1 20.0 21.8 10911322.620.0µg/LDi-Isopropyl Ether (DIPE)70-130 3.6 20.0 18.7 93.511522.920.0µg/L1,2-Dibromo-3-Chloropropane 70-130 20.1*20.0 20.8 10410520.920.0µg/L1,2-Dibromoethane 70-130 0.4 20.0 20.6 10310320.520.0µg/LDibromomethane 70-130 0.4 20.0 21.4 10710721.320.0µg/L1,2-Dichlorobenzene 70-130 0.4 20.0 22.0 11010621.220.0µg/L1,3-Dichlorobenzene 70-130 3.7 20.0 21.4 10710521.020.0µg/L1,4-Dichlorobenzene 70-130 1.8 20.0 18.8 94.011021.920.0µg/LDichlorodifluoromethane 60-140 15.2 20.0 21.2 10611623.220.0µg/L1,1-Dichloroethane 70-130 9.0 20.0 20.4 10210521.020.0µg/L1,2-Dichloroethane 70-130 2.8 20.0 21.0 10511122.120.0µg/L1,1-Dichloroethene 70-130 5.1 20.0 22.1 11111322.520.0µg/Lcis-1,2-Dichloroethene 70-130 1.7 20.0 21.3 10711723.320.0µg/Ltrans-1,2-Dichloroethene 70-130 8.9 20.0 Page 4 of 6* QC Fail Date:01/18/2023 05:32 PM Page 25 of 29 Quality Control Data 23-011-0100Report No: Project Description: Client ID:Geological Resources, Inc. Gate 402 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V28980QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V28979 LCS-V28979 LCSD-V28979Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 21.2 10610520.920.0µg/L1,2-Dichloropropane 70-130 1.4 20.0 19.9 99.510320.520.0µg/L1,3-Dichloropropane 70-130 2.9 20.0 18.6 93.095.019.020.0µg/L2,2-Dichloropropane 70-130 2.1 20.0 21.5 10810721.320.0µg/L1,1-Dichloropropene 70-130 0.9 20.0 20.3 10210520.920.0µg/Lcis-1,3-Dichloropropene 70-130 2.9 20.0 20.3 10210721.420.0µg/Ltrans-1,3-Dichloropropene 70-130 5.2 20.0 537 107122610500µg/LEthanol 60-140 12.7 20.0 20.2 10110420.820.0µg/LEthylbenzene 70-130 2.9 20.0 21.0 10510521.020.0µg/LHexachlorobutadiene 70-130 0.0 20.0 18.1 90.510420.820.0µg/L2-Hexanone 60-140 13.8 20.0 22.3 11210320.520.0µg/LIsopropylbenzene 70-130 8.4 20.0 21.3 10710621.120.0µg/L4-Isopropyl toluene 70-130 0.9 20.0 17.9 89.592.018.420.0µg/LMethyl Ethyl Ketone (MEK)60-140 2.7 20.0 20.8 10411623.220.0µg/LMethyl tert-butyl ether (MTBE)70-130 10.9 20.0 18.0 90.010621.220.0µg/L4-Methyl-2-Pentanone 60-140 16.3 20.0 21.3 10711723.420.0µg/LMethylene Chloride 70-130 9.3 20.0 22.5 11311823.620.0µg/LNaphthalene 70-130 4.7 20.0 21.9 11010120.120.0µg/Ln-Propylbenzene 70-130 8.5 20.0 21.2 10610621.120.0µg/LStyrene 70-130 0.4 20.0 21.6 10810721.320.0µg/L1,1,1,2-Tetrachloroethane 70-130 1.3 20.0 21.8 10910621.120.0µg/L1,1,2,2-Tetrachloroethane 70-130 3.2 20.0 19.2 96.010721.320.0µg/LTetrachloroethene 70-130 10.3 20.0 19.7 98.510520.920.0µg/LToluene 70-130 5.9 20.0 24.3 12212424.720.0µg/L1,2,3-Trichlorobenzene 70-130 1.6 20.0 22.7 11411422.820.0µg/L1,2,4-Trichlorobenzene 70-130 0.4 20.0 20.7 10410721.420.0µg/L1,1,1-Trichloroethane 70-130 3.3 20.0 Page 5 of 6Date:01/18/2023 05:32 PM Page 26 of 29 Quality Control Data 23-011-0100Report No: Project Description: Client ID:Geological Resources, Inc. Gate 402 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V28980QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V28979 LCS-V28979 LCSD-V28979Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 20.2 10110320.620.0µg/L1,1,2-Trichloroethane 70-130 1.9 20.0 21.4 10711021.920.0µg/LTrichloroethene 70-130 2.3 20.0 20.6 10311021.920.0µg/LTrichlorofluoromethane 60-140 6.1 20.0 21.0 10510120.120.0µg/L1,2,3-Trichloropropane 70-130 4.3 20.0 21.9 11010521.020.0µg/L1,2,4-Trimethylbenzene 70-130 4.1 20.0 22.2 11110320.620.0µg/L1,3,5-Trimethylbenzene 70-130 7.4 20.0 18.7 93.577.015.420.0µg/LVinyl Acetate 60-140 19.3 20.0 21.2 10611623.220.0µg/LVinyl Chloride 60-140 9.0 20.0 21.2 10610721.320.0µg/Lo-Xylene 70-130 0.4 20.0 41.5 10410742.740.0µg/Lm,p-Xylene 70-130 2.8 20.0 10995.44-Bromofluorobenzene (S)70-130 99.6101Dibromofluoromethane (S)70-130 1011001,2-Dichloroethane - d4 (S)70-130 93.896.0Toluene-d8 (S)70-130 Page 6 of 6Date:01/18/2023 05:32 PM Page 27 of 29 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-011-0100 Geological Resources, Inc. 00087 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT- 15 1.7C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angela D Overcash Date & Time:01/11/2023 16:12:45 Special precautions or instructions included? Comments: Page 28 of 29