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 MW-19R 5/24/2023 Methacrylonitrile <10 10 ug/L No 8260B MW-19R 5/24/2023 2-Butanone <10 10 ug/L No 8260B MW-19R 5/24/2023 Methyl Iodide <2 2 ug/L No 8260B MW-19R 5/24/2023 4-Methyl-2-Pentanone <10 10 ug/L No 8260B MW-19R 5/24/2023 Propionitrile <20 20 ug/L No 8260B MW-19R 5/24/2023 Vinyl acetate <10 10 ug/L No 8260B MW-19R 5/24/2023 Acenaphthene <2 2 ug/L No 8270C MW-19R 5/24/2023 Acenaphthylene <2 2 ug/L No 8270C MW-19R 5/24/2023 Aldrin <2 2 ug/L No 8270C MW-19R 5/24/2023 Anthracene <2 2 ug/L No 8270C MW-19R 5/24/2023 Benzo(a)anthracene <2 2 ug/L No 8270C MW-19R 5/24/2023 Benzo(b)fluoranthene <2 2 ug/L No 8270C MW-19R 5/24/2023 N-Nitrosomethylethylamine <10 10 ug/L No 8270C MW-19R 5/24/2023 N-Nitrosopiperidine <10 10 ug/L No 8270C MW-19R 5/24/2023 N-Nitrosopyrrolidine <10 10 ug/L No 8270C MW-19R 5/24/2023 Pentachlorobenzene <10 10 ug/L No 8270C MW-19R 5/24/2023 Pentachloronitrobenzene <10 10 ug/L No 8270C MW-19R 5/24/2023 Phenacetin <10 10 ug/L No 8270C MW-19R 5/24/2023 P-Phenylenediamine <20 20 ug/L No 8270C MW-19R 5/24/2023 PCB-1016 <50 50 ug/L No 8270C MW-19R 5/24/2023 PCB-1254 <50 50 ug/L No 8270C MW-19R 5/24/2023 PCB-1260 <50 50 ug/L No 8270C MW-19R 5/24/2023 PCB-1262 <50 50 ug/L No 8270C MW-19R 5/24/2023 PCB-1268 <50 50 ug/L No 8270C MW-19R 5/24/2023 PCB-1248 <50 50 ug/L No 8270C MW-19R 5/24/2023 PCB-1242 <50 50 ug/L No 8270C MW-19R 5/24/2023 PCB-1221 <50 50 ug/L No 8270C MW-19R 5/24/2023 PCB-1232 <50 50 ug/L No 8270C MW-19R 5/24/2023 Total PCB <50 50 ug/L No 8270C MW-19R 5/24/2023 Pronamide <10 10 ug/L No 8270C MW-19R 5/24/2023 Pyridine <10 10 ug/L No 8270C MW-19R 5/24/2023 Safrole <10 10 ug/L No 8270C MW-19R 5/24/2023 Tetrachlorobenzenes <10 10 ug/L No 8270C MW-19R 5/24/2023 2,3,4,6-Tetrachlorophenol <10 10 ug/L No 8270C MW-19R 5/24/2023 Toxaphene <100 100 ug/L No 8270C MW-19R 5/24/2023 O,O,O-Triethylphosphorothioate <10 10 ug/L No 8270C MW-19R 5/24/2023 Sym-Trinitrobenzene <10 10 ug/L No 8270C MW-19R 5/24/2023 Calcium, Dissolved 94 94 0.1 mg/L Yes 6010B MW-19R 5/24/2023 Magnesium, Dissolved 42 42 0.05 mg/L Yes 6010B MW-19R 5/24/2023 Sodium, Dissolved 41 41 1 mg/L Yes 6010B MW-19R 5/24/2023 Potassium, Dissolved 7.6 7.6 1 mg/L Yes 6010B MW-19R 5/24/2023 Bicarbonate 430 A10 430 10 mg/L Yes 310.1 MW-19R 5/24/2023 Carbonate <5 A10 5 mg/L No 310.1 MW-19R 5/24/2023 Chloride 78 78 0.5 mg/L Yes 300 MW-19R 5/24/2023 Nitrogen, Nitrate 12 12 0.1 mg/L Yes 300 MW-19R 5/24/2023 Sulfate 63 63 1 mg/L Yes 300 MW-19R 5/24/2023 Solids, Total Dissolved 1000 A10 1000 33 mg/L Yes 160.1 MW-19R 5/24/2023 Cyanide, Dissolved <0.005 0.005 mg/L No 335.4 MW-19R 5/24/2023 Sulfide, Dissolved <0.1 0.1 mg/L No 4500-S D MW-19R 5/24/2023 Total Organic Carbon 0.7 J 0.7 1 mg/L Yes 5310C MW-19R 5/24/2023 Chemical Oxygen Demand <25 25 mg O2/L No 410.4 MW-19R 5/24/2023 Aluminum, Total <50 50 ug/L No 6010B MW-19R 5/24/2023 Antimony, Dissolved 26 J 26 100 ug/L Yes 6010B MW-19R 5/24/2023 Arsenic, Dissolved 3 3 2 ug/L Yes 200.8 MW-19R 5/24/2023 Chromium, Hexavalent 0.96 J 0.96 2 ug/L Yes 7196 MW-19R 5/24/2023 Barium, Dissolved 300 300 10 ug/L Yes 6010B MW-19R 5/24/2023 Beryllium, Dissolved <10 10 ug/L No 6010B MW-19R 5/24/2023 Cadmium, Dissolved <10 10 ug/L No 6010B MW-19R 5/24/2023 Chromium, Dissolved 1.2 J 1.2 10 ug/L Yes 6010B MW-19R 5/24/2023 Cobalt, Dissolved <50 50 ug/L No 6010B MW-19R 5/24/2023 Copper, Dissolved <10 10 ug/L No 6010B MW-19R 5/24/2023 Iron, Dissolved <50 50 ug/L No 6010B MW-19R 5/24/2023 Lead, Dissolved <50 50 ug/L No 6010B MW-19R 5/24/2023 Manganese, Dissolved <10 10 ug/L No 6010B MW-19R 5/24/2023 Mercury, Dissolved 0.094 J 0.094 0.2 ug/L Yes 7470A MW-19R 5/24/2023 Nickel, Dissolved <10 10 ug/L No 6010B MW-19R 5/24/2023 Selenium, Dissolved 1.6 J 1.6 2 ug/L Yes 200.8 MW-19R 5/24/2023 Silver, Dissolved <10 10 ug/L No 6010B MW-19R 5/24/2023 Strontium 1100 1100 10 ug/L Yes 6010B MW-19R 5/24/2023 Thallium, Dissolved <1 1 ug/L No 200.8 MW-19R 5/24/2023 Tin, Dissolved <1 1 ug/L No 200.8 MW-19R 5/24/2023 Vanadium, Dissolved 20 20 10 ug/L Yes 6010B MW-19R 5/24/2023 Zinc, Dissolved <10 10 ug/L No 6010B MW-19R 8/8/2023 Ethanol ND(250)ND 250 ug/L No 8260B MW-19R 8/8/2023 Acetone ND(10)ND 10 ug/L No 8260B MW-19R 8/8/2023 Chloroform ND(0.5)ND 0.5 ug/L No 8260B MW-19R 8/8/2023 Benzene ND(0.5)ND 0.5 ug/L No 8260B MW-19R 8/8/2023 1,1,1-Trichloroethane ND(0.5)ND 0.5 ug/L No 8260B MW-19R 8/8/2023 Bromomethane ND(1)ND 1 ug/L No 8260B MW-19R 8/8/2023 Chloromethane ND(0.5)ND 0.5 ug/L No 8260B MW-19R 8/8/2023 Methyl Iodide ND(2)ND 2 ug/L No 8260B Page 862 of 971