COMPLIANCE INFO_2024 Q1 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 7833 MW-02 5/12/2023 Sulfate 55 55 1 mg/L Yes 300 7833 MW-02 5/12/2023 Solids, Total Dissolved 730 A10 730 33 mg/L Yes 160.1 7833 MW-02 5/12/2023 Cyanide, Dissolved <0.005 0.005 mg/L No 335.4 7833 MW-02 5/12/2023 Sulfide, Dissolved <0.1 0.1 mg/L No 4500-S D 7833 MW-02 5/12/2023 Total Organic Carbon 0.44 J 0.44 1 mg/L Yes 5310C 7833 MW-02 5/12/2023 Chemical Oxygen Demand <25 25 mg O2/L No 410.4 7833 MW-02 5/12/2023 Aluminum, Total <50 50 ug/L No 6010B 7833 MW-02 5/12/2023 Antimony, Dissolved <100 100 ug/L No 6010B 7833 MW-02 5/12/2023 Arsenic, Dissolved 3.5 3.5 2 ug/L Yes 200.8 7833 MW-02 5/12/2023 Chromium, Hexavalent 3.6 3.6 2 ug/L Yes 7196 7833 MW-02 5/12/2023 Barium, Dissolved 290 290 10 ug/L Yes 6010B 7833 MW-02 5/12/2023 Beryllium, Dissolved <10 10 ug/L No 6010B 7833 MW-02 5/12/2023 Cadmium, Dissolved <10 10 ug/L No 6010B 7833 MW-02 5/12/2023 Chromium, Dissolved 2.2 J 2.2 10 ug/L Yes 6010B 7833 MW-02 5/12/2023 Cobalt, Dissolved <50 50 ug/L No 6010B 7833 MW-02 5/12/2023 Copper, Dissolved <10 10 ug/L No 6010B 7833 MW-02 5/12/2023 Iron, Dissolved <50 50 ug/L No 6010B 7833 MW-02 5/12/2023 Lead, Dissolved <50 50 ug/L No 6010B 7833 MW-02 5/12/2023 Manganese, Dissolved <10 10 ug/L No 6010B 7833 MW-02 5/12/2023 Mercury, Dissolved <0.2 0.2 ug/L No 7470A 7833 MW-02 5/12/2023 Nickel, Dissolved <10 10 ug/L No 6010B 7833 MW-02 5/12/2023 Selenium, Dissolved 3.1 3.1 2 ug/L Yes 200.8 7833 MW-02 5/12/2023 Silver, Dissolved 1.8 J 1.8 10 ug/L Yes 6010B 7833 MW-02 5/12/2023 Strontium 1200 1200 10 ug/L Yes 6010B 7833 MW-02 5/12/2023 Thallium, Dissolved <1 1 ug/L No 200.8 7833 MW-02 5/12/2023 Tin, Dissolved <1 1 ug/L No 200.8 7833 MW-02 5/12/2023 Vanadium, Dissolved 21 21 10 ug/L Yes 6010B 7833 MW-02 5/12/2023 Zinc, Dissolved <10 10 ug/L No 6010B 7833 MW-02 8/4/2023 Carbon tetrachloride ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Ethanol ND(250)ND 250 ug/L No 8260B 7833 MW-02 8/4/2023 Acetone ND(10)ND 10 ug/L No 8260B 7833 MW-02 8/4/2023 Chloroform ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Benzene ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 1,1,1-Trichloroethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Bromomethane ND(1)ND 1 ug/L No 8260B 7833 MW-02 8/4/2023 Chloromethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Methyl Iodide ND(2)ND 2 ug/L No 8260B 7833 MW-02 8/4/2023 Dibromomethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Methylene Chloride ND(1)ND 1 ug/L No 8260B 7833 MW-02 8/4/2023 Carbon Disulfide ND(1)ND 1 ug/L No 8260B 7833 MW-02 8/4/2023 Bromochloromethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Chloroethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Vinyl Chloride ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Acetonitrile ND(10)ND 10 ug/L No 8260B 7833 MW-02 8/4/2023 Bromoform ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Bromodichloromethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 1,1-Dichloroethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 1,1-Dichloroethene ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 tert-Butyl Alcohol ND(10)ND 10 ug/L No 8260B 7833 MW-02 8/4/2023 Trichlorofluoromethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Dichlorodifluoromethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Isobutyl Alcohol ND(20)ND 20 ug/L No 8260B 7833 MW-02 8/4/2023 1,2-Dichloropropane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 2-Butanone ND(10)ND 10 ug/L No 8260B 7833 MW-02 8/4/2023 1,1,2-Trichloroethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 1,1,2,2-Tetrachloroethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Naphthalene ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 1,2-Dichlorobenzene ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Trichloroethene 30 30 0.5 ug/L Yes 8260B 7833 MW-02 8/4/2023 Hexachlorobutadiene ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Styrene ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 1,2-Dibromo-3-Chloropropane ND(1)ND 1 ug/L No 8260B 7833 MW-02 8/4/2023 1,2,3-Trichloropropane ND(1)ND 1 ug/L No 8260B 7833 MW-02 8/4/2023 Ethyl Methacrylate ND(4)ND 4 ug/L No 8260B 7833 MW-02 8/4/2023 Ethylbenzene ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Acrolein ND(10)ND 10 ug/L No 8260B 7833 MW-02 8/4/2023 Allyl Chloride ND(5)ND 5 ug/L No 8260B 7833 MW-02 8/4/2023 1,4-Dichlorobenzene ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 1,2-Dibromoethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 1,2-Dichloroethane ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Propionitrile ND(20)ND 20 ug/L No 8260B 7833 MW-02 8/4/2023 Acrylonitrile ND(5)ND 5 ug/L No 8260B 7833 MW-02 8/4/2023 Vinyl acetate ND(10)ND 10 ug/L No 8260B 7833 MW-02 8/4/2023 4-Methyl-2-Pentanone ND(10)ND 10 ug/L No 8260B 7833 MW-02 8/4/2023 Diisopropyl Ether ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Toluene ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Chlorobenzene ND(0.5)ND 0.5 ug/L No 8260B 7833 MW-02 8/4/2023 Methacrylonitrile ND(10)ND 10 ug/L No 8260B 7833 MW-02 8/4/2023 2-Chloro-1,3-Butadiene ND(5)ND 5 ug/L No 8260B 7833 MW-02 8/4/2023 Trans-1,4-Dichloro-2-Butene ND(5)ND 5 ug/L No 8260B 7833 MW-02 8/4/2023 1,2,4-Trichlorobenzene ND(0.5)ND 0.5 ug/L No 8260B Page 13 of 971