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-33S 5/16/2023 Calcium, Dissolved 120 120 0.1 mg/L Yes 6010B AMW-33S 5/16/2023 Magnesium, Dissolved 40 40 0.05 mg/L Yes 6010B AMW-33S 5/16/2023 Sodium, Dissolved 60 60 1 mg/L Yes 6010B AMW-33S 5/16/2023 Potassium, Dissolved 6.7 6.7 1 mg/L Yes 6010B AMW-33S 5/16/2023 Bicarbonate 340 A10 340 10 mg/L Yes 310.1 AMW-33S 5/16/2023 Carbonate <5.0 A10 5 mg/L No 310.1 AMW-33S 5/16/2023 Chloride 100 100 0.5 mg/L Yes 300 AMW-33S 5/16/2023 Nitrogen, Nitrate 21 A10 21 0.2 mg/L Yes 300 AMW-33S 5/16/2023 Sulfate 61 61 1 mg/L Yes 300 AMW-33S 5/16/2023 Solids, Total Dissolved 690 A10 690 33 mg/L Yes 160.1 AMW-33S 5/16/2023 Cyanide, Dissolved <0.0050 0.005 mg/L No 335.4 AMW-33S 5/16/2023 Sulfide, Dissolved <0.10 0.1 mg/L No 4500-S D AMW-33S 5/16/2023 Total Organic Carbon 0.79 J 0.79 1 mg/L Yes 5310C AMW-33S 5/16/2023 Chemical Oxygen Demand <25 25 mg O2/L No 410.4 AMW-33S 5/16/2023 Aluminum, Total <50 50 ug/L No 6010B AMW-33S 5/16/2023 Antimony, Dissolved 10 J 10 100 ug/L Yes 6010B AMW-33S 5/16/2023 Arsenic, Dissolved 4.6 4.6 2 ug/L Yes 200.8 AMW-33S 5/16/2023 Chromium, Hexavalent 4.5 4.5 2 ug/L Yes 7196 AMW-33S 5/16/2023 Barium, Dissolved 300 300 10 ug/L Yes 6010B AMW-33S 5/16/2023 Beryllium, Dissolved <10 10 ug/L No 6010B AMW-33S 5/16/2023 Cadmium, Dissolved <10 10 ug/L No 6010B AMW-33S 5/16/2023 Chromium, Dissolved 3.3 J 3.3 10 ug/L Yes 6010B AMW-33S 5/16/2023 Cobalt, Dissolved <50 50 ug/L No 6010B AMW-33S 5/16/2023 Copper, Dissolved <10 10 ug/L No 6010B AMW-33S 5/16/2023 Iron, Dissolved <50 50 ug/L No 6010B AMW-33S 5/16/2023 Lead, Dissolved 9.0 J 9 50 ug/L Yes 6010B AMW-33S 5/16/2023 Manganese, Dissolved <10 10 ug/L No 6010B AMW-33S 5/16/2023 Mercury, Dissolved <0.20 0.2 ug/L No 7470A AMW-33S 5/16/2023 MTBE <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 Naphthalene <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 Styrene <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 1,1,1,2-Tetrachloroethane <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 1,1,2,2-Tetrachloroethane <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 Tetrachloroethene <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 Toluene <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 1,2,4-Trichlorobenzene <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 1,1,1-Trichloroethane <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 1,1,2-Trichloroethane <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 Trichloroethene <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 Trichlorofluoromethane <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 1,2,3-Trichloropropane <1.0 1 ug/L No 8260B AMW-33S 5/16/2023 Vinyl Chloride <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 Xylenes, Total <1.0 1 ug/L No 8260B AMW-33S 5/16/2023 Acetone <10 10 ug/L No 8260B AMW-33S 5/16/2023 Acetonitrile <10 10 ug/L No 8260B AMW-33S 5/16/2023 Acrolein <10 10 ug/L No 8260B AMW-33S 5/16/2023 Acrylonitrile <5.0 5 ug/L No 8260B AMW-33S 5/16/2023 Allyl Chloride <5.0 5 ug/L No 8260B AMW-33S 5/16/2023 Tert-Amyl-Methyl Ether <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 tert-Butyl Alcohol <10 10 ug/L No 8260B AMW-33S 5/16/2023 Carbon Disulfide <1.0 1 ug/L No 8260B AMW-33S 5/16/2023 2-Chloro-1,3-Butadiene <5.0 5 ug/L No 8260B AMW-33S 5/16/2023 Trans-1,4-Dichloro-2-Butene <5.0 5 ug/L No 8260B AMW-33S 5/16/2023 Diisopropyl Ether <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 Ethanol <250 250 ug/L No 8260B AMW-33S 5/16/2023 Ethyl Methacrylate <4.0 4 ug/L No 8260B AMW-33S 5/16/2023 Ethyl-t-Butyl Ether <0.50 0.5 ug/L No 8260B AMW-33S 5/16/2023 2-Hexanone <10 10 ug/L No 8260B AMW-33S 5/16/2023 Isobutyl Alcohol <20 20 ug/L No 8260B AMW-33S 5/16/2023 Methacrylonitrile <10 10 ug/L No 8260B AMW-33S 5/16/2023 2-Butanone <10 10 ug/L No 8260B AMW-33S 5/16/2023 Methyl Iodide <2.0 2 ug/L No 8260B AMW-33S 5/16/2023 4-Methyl-2-Pentanone <10 10 ug/L No 8260B AMW-33S 5/16/2023 Propionitrile <20 20 ug/L No 8260B AMW-33S 5/16/2023 Vinyl acetate <10 10 ug/L No 8260B AMW-33S 5/16/2023 Acenaphthene <2.0 2 ug/L No 8270C AMW-33S 5/16/2023 Acenaphthylene <2.0 2 ug/L No 8270C AMW-33S 5/16/2023 Aldrin <2.0 2 ug/L No 8270C AMW-33S 5/16/2023 Anthracene <2.0 2 ug/L No 8270C AMW-33S 5/16/2023 Benzo(a)anthracene <2.0 2 ug/L No 8270C AMW-33S 5/16/2023 Benzo(b)fluoranthene <2.0 2 ug/L No 8270C AMW-33S 5/16/2023 Benzo(k)fluoranthene <2.0 2 ug/L No 8270C AMW-33S 5/16/2023 Benzo(a)pyrene <2.0 2 ug/L No 8270C Page 338 of 926