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Appendix D. Cumulative Historical Data for the Past Year <br />Sample ID <br />Sample Date Parameter <br />Result <br />Lab Result I Lab Limit Lab Unit <br />Detect <br />Method <br />AMW-12 <br />1/31/2023 4-Methyl-2-Pentanone <br />ND(10) <br />ug/L <br />10 No <br />8260B <br />AMW-12 <br />1/31/2023 Propionitrile <br />ND(20) <br />ug/L <br />20 No <br />8260B <br />AMW-12 <br />1/31/2023 Acrylonitrile <br />ND(5) <br />ug/L <br />5 No <br />8260B <br />AMW-12 <br />1/31/2023 Diisopropyl Ether <br />ND(0.5) <br />ug/L <br />0.5 No <br />8260B <br />AMW-12 <br />1/31/2023 Toluene <br />ND(0.5) <br />ug/L <br />0.5 No <br />8260B <br />AMW-12 <br />1/31/2023 1,2,4-Trichlorobenzene <br />ND(0.5) <br />ug/L <br />0.5 No <br />82608 <br />AMW-12 <br />1/31/2023 Dibromochloromethane <br />ND(0.5) <br />ug/L <br />0.5 No <br />8260B <br />AMW-12 <br />1/31/2023 Chlorobenzene <br />ND(0.5) <br />ug/L <br />0.5 No <br />8260B <br />AMW-12 <br />1/31/2023 Trans-1,4-Dichloro-2-Butene <br />ND(5) <br />ug/L <br />5 No <br />8260B <br />AMW-12 <br />1/31/2023 2 -Chloro -1,3 -Butadiene <br />ND(5) <br />ug/L <br />5 No <br />8260B <br />AMW-12 <br />1/31/2023 cis-1,2-Dichloroethene <br />ND(0.5) <br />ug/L <br />0.5 No <br />82608 <br />AMW-12 <br />1/31/2023 Methacrylonitrile <br />ND(10) <br />ug/L <br />10 No <br />82608 <br />AMW-12 <br />1/31/2023 Tetrachloroethene <br />1.3 ug/L <br />1.3 <br />0.5 Yes <br />82608 <br />AMW-12 <br />1/31/2023 trans-1,2-Dichloroethene <br />ND(0.5) <br />ug/L <br />0.5 No <br />82608 <br />AMW-12 <br />1/31/2023 1,1-Dichloropropene <br />ND(0.5) <br />ug/L <br />0.5 No <br />8260B <br />AMW-12 <br />1/31/2023 2-Hexanone <br />ND(10) <br />ug/L <br />10 No <br />8260B <br />AMW-12 <br />1/31/2023 2,2-Dichloropropane <br />ND(0.5) <br />ug/L <br />0.5 No <br />8260B <br />AMW-12 <br />1/31/2023 1,3 -Dichlorobenzene <br />ND(0.5) <br />ug/L <br />0.5 No <br />82608 <br />AMW-12 <br />1/31/2023 1,1,1,2 -Tetrachloroethane <br />ND(0.5) <br />ug/L <br />0.5 No <br />18260B <br />AMW-12 <br />1/31/2023 Ethyl -t -Butyl Ether <br />ND(0.5) <br />ug/L <br />0.5 No <br />8260B <br />AMW-12 <br />1/31/2023 Xylenes, Total <br />ND(1) <br />ug/L <br />1 No <br />8260B <br />AMW-12 <br />1/31/2023 cis-1,3-Dichloropropene <br />ND(0.5) <br />ug/L <br />0.5 No <br />8260B <br />AMW-12 <br />1/31/2023 Tert-Amyl-Methyl Ether <br />ND(0.5) <br />ug/L <br />0.5 No <br />8260B <br />AMW-12 <br />1/31/2023 MTBE <br />ND(0.5) <br />ug/L <br />0.5 No <br />8260B <br />AMW-12 <br />1/31/2023 trans-1,3-Dichloropropene <br />ND(0.5) <br />ug/L <br />0.5 No <br />8260B <br />AMW-12 <br />1/31/2023 Chloride <br />68 mg/L <br />68 <br />0.5 Yes <br />EPA 300.0 <br />AMW-12 <br />1/31/2023 Potassium, Dissolved <br />5 mg/L <br />5 <br />1 Yes <br />EPA 6010B <br />AMW-12 <br />1/31/2023 Nitrogen, Nitrate <br />25 mg/L <br />25 <br />0.2 Yes <br />EPA 300.0 <br />AMW-12 <br />1/31/2023 Strontium <br />1100 ug/L <br />1100 <br />10 Yes <br />EPA 6010B <br />AMW-12 <br />1/31/2023 Sulfate <br />70 mg/L <br />70 <br />1 Yes <br />EPA 300.0 <br />AMW-12 <br />1/31/2023 Solids, Total Dissolved <br />680 mg/L <br />680 <br />33 Yes <br />EPA 160.1 <br />AMW-12 <br />1/31/2023 Carbonate <br />ND(5) <br />mg/L <br />5 No <br />EPA 310.1 <br />AMW-12 <br />1/31/2023 Calcium, Dissolved <br />100 mg/L <br />100 <br />0.1 Yes <br />EPA 6010B <br />AMW-12 <br />1/31/2023 Magnesium, Dissolved <br />43 mg/L <br />43 <br />0.05 Yes <br />EPA 6010B <br />AMW-12 <br />1/31/2023 Sodium, Dissolved <br />52 mg/L <br />52 <br />1 Yes <br />EPA 6010B <br />AMW-12 <br />1/31/2023 Bicarbonate <br />350 mg/L <br />350 <br />10 Yes <br />EPA 310.1 <br />AMW-13 <br />1/31/2022 Ethanol <br /><250 <br />250 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Ethyl -t -Butyl Ether <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 2-Hexanone <br /><10 <br />10 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 2-Butanone <br /><10 <br />10 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Methyl Iodide <br /><2 <br />2 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 4-Methyl-2-Pentanone <br /><10 <br />10 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Vinyl acetate <br /><10 <br />10 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Strontium <br />890 <br />890 <br />10 ug/L <br />Yes <br />EPA 6010B <br />AMW-13 <br />1/31/2022 Arsenic, Total <br />14 J <br />14 <br />50 ug/L <br />Yes <br />EPA 6010B <br />AMW-13 <br />1/31/2022 Iron, Total <br /><50 <br />50 ug/L <br />No <br />EPA 601013 <br />AMW-13 <br />1/31/2022 Manganese, Total <br /><10 <br />10 ug/L <br />No <br />EPA 6010B <br />AMW-13 <br />1/31/2022 Benzene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Bromochloromethane <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Bromodichloromethane <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Bromoform <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Bromomethane <br /><1 <br />1 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Carbon tetrachloride <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Chlorobenzene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Chloroethane <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Chloroform <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Chloromethane <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Dibromochloromethane <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/20221.2-Dibromo-3-Chloropropane <br /><1 <br />1 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 1,2-Dibromoethane <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Dibromomethane <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 1,2 -Dichlorobenzene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 1,3 -Dichlorobenzene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 82606 <br />AMW-13 <br />1/31/2022 1,4 -Dichlorobenzene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Dichlorodifluoromethane <br />0.341 <br />0.34 <br />0.5 ug/L <br />Yes <br />EPA 8260B <br />AMW-13 <br />1/31/2022 1,1-Dichloroethane <br />0.231 <br />0.23 <br />0.5 ug/L <br />Yes <br />EPA 8260B <br />AMW-13 <br />1/31/2022 1,2-Dichloroethane <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 1,1-Dichloroethene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 cis-1,2-Dichloroethene <br />0.311 <br />0.31 <br />0.5 ug/L <br />Yes <br />EPA 8260B <br />AMW-13 <br />1/31/2022 trans-1,2-Dichloroethene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 1,2-Dichloropropane <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 cis-1,3-Dichloropropene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 trans-1,3-Dichloropropene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Ethylbenzene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Hexachlorobutadiene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Methylene Chloride <br /><1 <br />1 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 MTBE <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />AMW-13 <br />1/31/2022 Naphthalene <br /><0.5 <br />0.5 ug/L <br />No <br />EPA 8260B <br />Page 68 of 527 <br />