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-44 5/15/2023 Sulfate 66 66 1 mg/L Yes 300 AMW-44 5/15/2023 Solids, Total Dissolved 540 A10 540 33 mg/L Yes 160.1 AMW-44 5/15/2023 Cyanide, Dissolved <0.005 0.005 mg/L No 335.4 AMW-44 5/15/2023 Sulfide, Dissolved <0.1 0.1 mg/L No 4500-S D AMW-44 5/15/2023 Total Organic Carbon 0.5 J 0.5 1 mg/L Yes 5310C AMW-44 5/15/2023 Chemical Oxygen Demand <25 25 mg O2/L No 410.4 AMW-44 5/15/2023 Aluminum, Total <50 50 ug/L No 6010B AMW-44 5/15/2023 Antimony, Dissolved <100 100 ug/L No 6010B AMW-44 5/15/2023 Arsenic, Dissolved 4 4 2 ug/L Yes 200.8 AMW-44 5/15/2023 Chromium, Hexavalent 4.6 4.6 2 ug/L Yes 7196 AMW-44 5/15/2023 Barium, Dissolved 260 260 10 ug/L Yes 6010B AMW-44 5/15/2023 Beryllium, Dissolved <10 10 ug/L No 6010B AMW-44 5/15/2023 Cadmium, Dissolved <10 10 ug/L No 6010B AMW-44 5/15/2023 Chromium, Dissolved 4.6 J 4.6 10 ug/L Yes 6010B AMW-44 5/15/2023 Cobalt, Dissolved <50 50 ug/L No 6010B AMW-44 5/15/2023 Copper, Dissolved <10 10 ug/L No 6010B AMW-44 5/15/2023 Iron, Dissolved <50 50 ug/L No 6010B AMW-44 5/15/2023 Lead, Dissolved <50 50 ug/L No 6010B AMW-44 5/15/2023 Manganese, Dissolved <10 10 ug/L No 6010B AMW-44 5/15/2023 Mercury, Dissolved 0.11 J 0.11 0.2 ug/L Yes 7470A AMW-44 5/15/2023 Nickel, Dissolved <10 10 ug/L No 6010B AMW-44 5/15/2023 Selenium, Dissolved 1.3 J 1.3 2 ug/L Yes 200.8 AMW-44 5/15/2023 Silver, Dissolved <10 10 ug/L No 6010B AMW-44 5/15/2023 Strontium 880 880 10 ug/L Yes 6010B AMW-44 5/15/2023 Thallium, Dissolved <1 1 ug/L No 200.8 AMW-44 5/15/2023 Tin, Dissolved <1 1 ug/L No 200.8 AMW-44 5/15/2023 Vanadium, Dissolved 31 31 10 ug/L Yes 6010B AMW-44 5/15/2023 Zinc, Dissolved <10 10 ug/L No 6010B AMW-44 5/15/2023 Acetonitrile <10 10 ug/L No 8260B AMW-44 5/15/2023 Acrolein <10 10 ug/L No 8260B AMW-44 5/15/2023 Acrylonitrile <5 5 ug/L No 8260B AMW-44 5/15/2023 Allyl Chloride <5 5 ug/L No 8260B AMW-44 5/15/2023 Tert-Amyl-Methyl Ether <0.5 0.5 ug/L No 8260B AMW-44 5/15/2023 tert-Butyl Alcohol <10 10 ug/L No 8260B AMW-44 5/15/2023 Carbon Disulfide <1 1 ug/L No 8260B AMW-44 5/15/2023 2-Chloro-1,3-Butadiene <5 5 ug/L No 8260B AMW-44 5/15/2023 Trans-1,4-Dichloro-2-Butene <5 5 ug/L No 8260B AMW-44 5/15/2023 Diisopropyl Ether <0.5 0.5 ug/L No 8260B AMW-44 5/15/2023 Ethanol <250 250 ug/L No 8260B AMW-44 5/15/2023 Ethyl Methacrylate <4 4 ug/L No 8260B AMW-44 5/15/2023 Ethyl-t-Butyl Ether <0.5 0.5 ug/L No 8260B AMW-44 5/15/2023 2-Hexanone <10 10 ug/L No 8260B AMW-44 5/15/2023 Isobutyl Alcohol <20 20 ug/L No 8260B AMW-44 5/15/2023 Methacrylonitrile <10 10 ug/L No 8260B AMW-44 5/15/2023 2-Butanone <10 10 ug/L No 8260B AMW-44 5/15/2023 Methyl Iodide <2 2 ug/L No 8260B AMW-44 5/15/2023 4-Methyl-2-Pentanone <10 10 ug/L No 8260B AMW-44 5/15/2023 Propionitrile <20 20 ug/L No 8260B AMW-44 5/15/2023 Vinyl acetate <10 10 ug/L No 8260B AMW-44 5/15/2023 Acenaphthene <2 2 ug/L No 8270C AMW-44 5/15/2023 Acenaphthylene <2 2 ug/L No 8270C AMW-44 5/15/2023 Aldrin <2 2 ug/L No 8270C AMW-44 5/15/2023 Anthracene <2 2 ug/L No 8270C AMW-44 5/15/2023 Benzo(a)anthracene <2 2 ug/L No 8270C AMW-44 5/15/2023 Benzo(b)fluoranthene <2 2 ug/L No 8270C AMW-44 5/15/2023 Benzo(k)fluoranthene <2 2 ug/L No 8270C AMW-44 5/15/2023 Benzo(a)pyrene <2 2 ug/L No 8270C AMW-44 5/15/2023 Benzo(g,h,i)perylene <2 2 ug/L No 8270C AMW-44 5/15/2023 Benzyl Alcohol <2 2 ug/L No 8270C AMW-44 5/15/2023 Butylbenzylphthalate <2 2 ug/L No 8270C AMW-44 5/15/2023 a-BHC <2 2 ug/L No 8270C AMW-44 5/15/2023 b-BHC <2 2 ug/L No 8270C AMW-44 5/15/2023 d-BHC <2 2 ug/L No 8270C AMW-44 5/15/2023 g-BHC (Lindane)<2 2 ug/L No 8270C AMW-44 5/15/2023 Bis(2-chloroethoxy)methane <2 2 ug/L No 8270C AMW-44 5/15/2023 Bis(2-chloroethyl)ether <2 2 ug/L No 8270C AMW-44 5/15/2023 Bis(2-chloroisopropyl)ether <2 2 ug/L No 8270C AMW-44 5/15/2023 Bis(2-ethylhexyl)phthalate <4 4 ug/L No 8270C AMW-44 5/15/2023 4-Bromophenyl-phenylether <2 2 ug/L No 8270C AMW-44 5/15/2023 4-Chloroaniline <2 2 ug/L No 8270C AMW-44 5/15/2023 2-Chloronaphthalene <2 2 ug/L No 8270C AMW-44 5/15/2023 4-Chlorophenyl-phenylether <2 2 ug/L No 8270C AMW-44 5/15/2023 Chrysene <2 2 ug/L No 8270C Page 468 of 926