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-40M 5/12/2023 Sodium, Dissolved 35 35 1 mg/L Yes 6010B AMW-40M 5/12/2023 Potassium, Dissolved 2.6 2.6 1 mg/L Yes 6010B AMW-40M 5/12/2023 Bicarbonate 170 170 5 mg/L Yes 310.1 AMW-40M 5/12/2023 Carbonate <2.5 2.5 mg/L No 310.1 AMW-40M 5/12/2023 Chloride 9.3 9.3 0.5 mg/L Yes 300 AMW-40M 5/12/2023 Nitrogen, Nitrate 0.85 0.85 0.1 mg/L Yes 300 AMW-40M 5/12/2023 Sulfate 22 22 1 mg/L Yes 300 AMW-40M 5/12/2023 Solids, Total Dissolved 230 A10 230 20 mg/L Yes 160.1 AMW-40M 5/12/2023 Cyanide, Dissolved <0.005 0.005 mg/L No 335.4 AMW-40M 5/12/2023 Sulfide, Dissolved <0.1 0.1 mg/L No 4500-S D AMW-40M 5/12/2023 Total Organic Carbon 1.5 1.5 1 mg/L Yes 5310C AMW-40M 5/12/2023 Chemical Oxygen Demand 5 J 5 25 mg O2/L Yes 410.4 AMW-40M 5/12/2023 Aluminum, Total 23 J 23 50 ug/L Yes 6010B AMW-40M 5/12/2023 Antimony, Dissolved <100 100 ug/L No 6010B AMW-40M 5/12/2023 Arsenic, Dissolved 6.9 6.9 2 ug/L Yes 200.8 AMW-40M 5/12/2023 Chromium, Hexavalent <2 2 ug/L No 7196 AMW-40M 5/12/2023 Barium, Dissolved 54 54 10 ug/L Yes 6010B AMW-40M 5/12/2023 Beryllium, Dissolved <10 10 ug/L No 6010B AMW-40M 5/12/2023 Cadmium, Dissolved <10 10 ug/L No 6010B AMW-40M 5/12/2023 Chromium, Dissolved <10 10 ug/L No 6010B AMW-40M 5/12/2023 Cobalt, Dissolved <50 50 ug/L No 6010B AMW-40M 5/12/2023 Copper, Dissolved <10 10 ug/L No 6010B AMW-40M 5/12/2023 Iron, Dissolved <50 50 ug/L No 6010B AMW-40M 5/12/2023 Lead, Dissolved <50 50 ug/L No 6010B AMW-40M 5/12/2023 Manganese, Dissolved <10 10 ug/L No 6010B AMW-40M 5/12/2023 Mercury, Dissolved 0.028 J 0.028 0.2 ug/L Yes 7470A AMW-40M 5/12/2023 Nickel, Dissolved <10 10 ug/L No 6010B AMW-40M 5/12/2023 Selenium, Dissolved <2 2 ug/L No 200.8 AMW-40M 5/12/2023 Silver, Dissolved 1.3 J 1.3 10 ug/L Yes 6010B AMW-40M 5/12/2023 Strontium 250 250 10 ug/L Yes 6010B AMW-40M 5/12/2023 Thallium, Dissolved <1 1 ug/L No 200.8 AMW-40M 5/12/2023 Tin, Dissolved <1 1 ug/L No 200.8 AMW-40M 5/12/2023 Vanadium, Dissolved 49 49 10 ug/L Yes 6010B AMW-40M 5/12/2023 Zinc, Dissolved <10 10 ug/L No 6010B AMW-40M 11/2/2023 Ethanol <250 ND 250 ug/L No 8260B AMW-40M 11/2/2023 Acetone <10 ND 10 ug/L No 8260B AMW-40M 11/2/2023 Benzene <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Chloromethane <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Methyl Iodide <2 ND 2 ug/L No 8260B AMW-40M 11/2/2023 Dibromomethane <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Bromochloromethane <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Acetonitrile <10 ND 10 ug/L No 8260B AMW-40M 11/2/2023 Carbon Disulfide <1 ND 1 ug/L No 8260B AMW-40M 11/2/2023 Bromoform <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 1,1-Dichloroethene <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Trichlorofluoromethane <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Dichlorodifluoromethane <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 2-Butanone <10 ND 10 ug/L No 8260B AMW-40M 11/2/2023 Trichloroethene <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 1,1,2,2-Tetrachloroethane <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 1,2-Dichlorobenzene <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 1,2-Dibromo-3-Chloropropane <1 ND 1 ug/L No 8260B AMW-40M 11/2/2023 Ethyl Methacrylate <4 ND 4 ug/L No 8260B AMW-40M 11/2/2023 1,4-Dichlorobenzene <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 1,2-Dibromoethane <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Acrolein <10 ND 10 ug/L No 8260B AMW-40M 11/2/2023 Allyl Chloride <5 ND 5 ug/L No 8260B AMW-40M 11/2/2023 Acrylonitrile <5 ND 5 ug/L No 8260B AMW-40M 11/2/2023 4-Methyl-2-Pentanone <10 ND 10 ug/L No 8260B AMW-40M 11/2/2023 Diisopropyl Ether <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Dibromochloromethane <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Methacrylonitrile <10 ND 10 ug/L No 8260B AMW-40M 11/2/2023 cis-1,2-Dichloroethene <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 trans-1,2-Dichloroethene <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 1,3-Dichlorobenzene <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 1,1-Dichloropropene <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 1,1,1,2-Tetrachloroethane <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Ethyl-t-Butyl Ether <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Xylenes, Total <1 ND 1 ug/L No 8260B AMW-40M 11/2/2023 trans-1,3-Dichloropropene <0.5 ND 0.5 ug/L No 8260B AMW-40M 11/2/2023 Chloride 11 11 0.5 mg/L Yes 300 AMW-40M 11/2/2023 Potassium, Dissolved 5.1 5.1 1 mg/L Yes 6010B AMW-40M 11/2/2023 Sodium, Dissolved 38 38 1 mg/L Yes 6010B Page 417 of 926