COMPLIANCE INFO_2023 Q4 WATER QUALITY RPT

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Appendix D. Cumulative Historical Data for the Past Year Sample ID Sample Date Parameter Result Lab Result (numeric)Lab Limit Lab Unit Detect Method AMW-29S 5/16/2023 Total Organic Carbon 0.57 J 0.57 1 mg/L Yes 5310C AMW-29S 5/16/2023 Chemical Oxygen Demand <25 25 mg O2/L No 410.4 AMW-29S 5/16/2023 Aluminum, Total <50 50 ug/L No 6010B AMW-29S 5/16/2023 Antimony, Dissolved 9.3 J 9.3 100 ug/L Yes 6010B AMW-29S 5/16/2023 Arsenic, Dissolved 2.7 2.7 2 ug/L Yes 200.8 AMW-29S 5/16/2023 Chromium, Hexavalent 2.8 2.8 2 ug/L Yes 7196 AMW-29S 5/16/2023 Barium, Dissolved 140 140 10 ug/L Yes 6010B AMW-29S 5/16/2023 Beryllium, Dissolved <10 10 ug/L No 6010B AMW-29S 5/16/2023 Cadmium, Dissolved <10 10 ug/L No 6010B AMW-29S 5/16/2023 Chromium, Dissolved 1.9 J 1.9 10 ug/L Yes 6010B AMW-29S 5/16/2023 Cobalt, Dissolved <50 50 ug/L No 6010B AMW-29S 5/16/2023 Copper, Dissolved <10 10 ug/L No 6010B AMW-29S 5/16/2023 Iron, Dissolved <50 50 ug/L No 6010B AMW-29S 5/16/2023 Lead, Dissolved 8.6 J 8.6 50 ug/L Yes 6010B AMW-29S 5/16/2023 Manganese, Dissolved <10 10 ug/L No 6010B AMW-29S 8/1/2023 Carbon tetrachloride ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Acetone ND(10)ND 10 ug/L No 8260B AMW-29S 8/1/2023 Chloroform ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Benzene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 1,1,1-Trichloroethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Ethanol ND(250)ND 250 ug/L No 8260B AMW-29S 8/1/2023 Bromomethane ND(1)ND 1 ug/L No 8260B AMW-29S 8/1/2023 Chloromethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Methyl Iodide ND(2)ND 2 ug/L No 8260B AMW-29S 8/1/2023 Dibromomethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Bromochloromethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Chloroethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Vinyl Chloride ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Acetonitrile ND(10)ND 10 ug/L No 8260B AMW-29S 8/1/2023 Methylene Chloride ND(1)ND 1 ug/L No 8260B AMW-29S 8/1/2023 Carbon Disulfide ND(1)ND 1 ug/L No 8260B AMW-29S 8/1/2023 Bromoform ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Bromodichloromethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 1,1-Dichloroethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 1,1-Dichloroethene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 tert-Butyl Alcohol ND(10)ND 10 ug/L No 8260B AMW-29S 8/1/2023 Trichlorofluoromethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Isobutyl Alcohol ND(20)ND 20 ug/L No 8260B AMW-29S 8/1/2023 1,2-Dichloropropane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 1,1,2-Trichloroethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Dichlorodifluoromethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 2-Butanone ND(10)ND 10 ug/L No 8260B AMW-29S 8/1/2023 1,1,2,2-Tetrachloroethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 1,2-Dichlorobenzene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Trichloroethene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Hexachlorobutadiene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Naphthalene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 1,2-Dibromo-3-Chloropropane ND(1)ND 1 ug/L No 8260B AMW-29S 8/1/2023 1,2,3-Trichloropropane ND(1)ND 1 ug/L No 8260B AMW-29S 8/1/2023 Ethyl Methacrylate ND(4)ND 4 ug/L No 8260B AMW-29S 8/1/2023 Ethylbenzene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Styrene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 1,4-Dichlorobenzene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 1,2-Dibromoethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 1,2-Dichloroethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Propionitrile ND(20)ND 20 ug/L No 8260B AMW-29S 8/1/2023 Acrolein ND(10)ND 10 ug/L No 8260B AMW-29S 8/1/2023 Allyl Chloride ND(5)ND 5 ug/L No 8260B AMW-29S 8/1/2023 Acrylonitrile ND(5)ND 5 ug/L No 8260B AMW-29S 8/1/2023 Vinyl acetate ND(10)ND 10 ug/L No 8260B AMW-29S 8/1/2023 4-Methyl-2-Pentanone ND(10)ND 10 ug/L No 8260B AMW-29S 8/1/2023 Diisopropyl Ether ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Toluene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Chlorobenzene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Trans-1,4-Dichloro-2-Butene ND(5)ND 5 ug/L No 8260B AMW-29S 8/1/2023 1,2,4-Trichlorobenzene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Dibromochloromethane ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 Methacrylonitrile ND(10)ND 10 ug/L No 8260B AMW-29S 8/1/2023 2-Chloro-1,3-Butadiene ND(5)ND 5 ug/L No 8260B AMW-29S 8/1/2023 Tetrachloroethene 2 2 0.5 ug/L Yes 8260B AMW-29S 8/1/2023 trans-1,2-Dichloroethene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 1,3-Dichlorobenzene ND(0.5)ND 0.5 ug/L No 8260B AMW-29S 8/1/2023 cis-1,2-Dichloroethene ND(0.5)ND 0.5 ug/L No 8260B Page 278 of 926