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-35S 5/11/2023 Carbonate <2.5 2.5 mg/L No 310.1 AMW-35S 5/11/2023 Chloride 74 74 0.5 mg/L Yes 300 AMW-35S 5/11/2023 Nitrogen, Nitrate 21 A10 21 0.2 mg/L Yes 300 AMW-35S 5/11/2023 Sulfate 49 49 1 mg/L Yes 300 AMW-35S 5/11/2023 Solids, Total Dissolved 640 A10 640 33 mg/L Yes 160.1 AMW-35S 5/11/2023 Cyanide, Total <0.005 0.005 mg/L No 335.4 AMW-35S 5/11/2023 Sulfide, Total <0.1 0.1 mg/L No 4500-S D AMW-35S 5/11/2023 Non-Volatile Organic Carbon 0.68 J 0.68 1 mg/L Yes 415.1 AMW-35S 5/11/2023 Chemical Oxygen Demand 5 J 5 25 mg O2/L Yes 410.4 AMW-35S 5/11/2023 Aluminum, Total 40 J 40 50 ug/L Yes 6010B AMW-35S 5/11/2023 Antimony, Dissolved <100 100 ug/L No 6010B AMW-35S 5/11/2023 Arsenic, Dissolved 3.5 3.5 2 ug/L Yes 200.8 AMW-35S 5/11/2023 Chromium, Hexavalent 3.4 3.4 2 ug/L Yes 7196 AMW-35S 5/11/2023 Barium, Dissolved 270 270 10 ug/L Yes 6010B AMW-35S 5/11/2023 Beryllium, Dissolved <10 10 ug/L No 6010B AMW-35S 5/11/2023 Cadmium, Dissolved 1.1 J 1.1 10 ug/L Yes 6010B AMW-35S 5/11/2023 Chromium, Dissolved 2.7 J 2.7 10 ug/L Yes 6010B AMW-35S 5/11/2023 Cobalt, Dissolved <50 50 ug/L No 6010B AMW-35S 5/11/2023 Copper, Dissolved <10 10 ug/L No 6010B AMW-35S 5/11/2023 Iron, Dissolved <50 50 ug/L No 6010B AMW-35S 5/11/2023 Lead, Dissolved <1 1 ug/L No 200.8 AMW-35S 5/11/2023 Manganese, Dissolved 16 16 10 ug/L Yes 6010B AMW-35S 5/11/2023 Mercury, Dissolved 0.18 J 0.18 0.2 ug/L Yes 7470A AMW-35S 5/11/2023 Nickel, Dissolved 32 32 10 ug/L Yes 6010B AMW-35S 5/11/2023 Selenium, Dissolved 2.3 2.3 2 ug/L Yes 200.8 AMW-35S 11/7/2023 Ethanol <250 ND 250 ug/L No 8260B AMW-35S 11/7/2023 Acetone <10 ND 10 ug/L No 8260B AMW-35S 11/7/2023 Benzene <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Chloromethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Methyl Iodide <2 ND 2 ug/L No 8260B AMW-35S 11/7/2023 Bromochloromethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Acetonitrile <10 ND 10 ug/L No 8260B AMW-35S 11/7/2023 Carbon Disulfide <1 ND 1 ug/L No 8260B AMW-35S 11/7/2023 Bromoform <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 1,1-Dichloroethene <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Trichlorofluoromethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Dichlorodifluoromethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 2-Butanone <10 ND 10 ug/L No 8260B AMW-35S 11/7/2023 1,1,2,2-Tetrachloroethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 1,2-Dichlorobenzene <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Ethyl Methacrylate <4 ND 4 ug/L No 8260B AMW-35S 11/7/2023 1,4-Dichlorobenzene <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Allyl Chloride <5 ND 5 ug/L No 8260B AMW-35S 11/7/2023 Acrylonitrile <5 ND 5 ug/L No 8260B AMW-35S 11/7/2023 4-Methyl-2-Pentanone <10 ND 10 ug/L No 8260B AMW-35S 11/7/2023 Diisopropyl Ether <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Chlorobenzene <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Trans-1,4-Dichloro-2-Butene <5 ND 5 ug/L No 8260B AMW-35S 11/7/2023 Dibromochloromethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Methacrylonitrile <10 ND 10 ug/L No 8260B AMW-35S 11/7/2023 cis-1,2-Dichloroethene <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 1,1-Dichloropropene <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 1,1,1,2-Tetrachloroethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Ethyl-t-Butyl Ether <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Xylenes, Total <1 ND 1 ug/L No 8260B AMW-35S 11/7/2023 trans-1,3-Dichloropropene <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Chloride 72 72 0.5 mg/L Yes 300 AMW-35S 11/7/2023 Potassium, Dissolved 5.5 5.5 1 mg/L Yes 6010B AMW-35S 11/7/2023 Magnesium, Dissolved 47 47 0.05 mg/L Yes 6010B AMW-35S 11/7/2023 Sodium, Dissolved 32 32 1 mg/L Yes 6010B AMW-35S 11/7/2023 Nitrogen, Nitrate 19 19 0.1 mg/L Yes 300 AMW-35S 11/7/2023 Solids, Total Dissolved 580 A10 580 33 mg/L Yes 160.1 AMW-35S 11/7/2023 Carbon tetrachloride <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Chloroform <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 1,1,1-Trichloroethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Bromomethane <1 ND 1 ug/L No 8260B AMW-35S 11/7/2023 Dibromomethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Chloroethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Vinyl Chloride <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 Methylene Chloride <1 ND 1 ug/L No 8260B AMW-35S 11/7/2023 Bromodichloromethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 1,1-Dichloroethane <0.5 ND 0.5 ug/L No 8260B AMW-35S 11/7/2023 tert-Butyl Alcohol <10 ND 10 ug/L No 8260B Page 362 of 926