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-4 5/15/2023 Ethyl Methacrylate <4 4 ug/L No 8260B AMW-4 5/15/2023 Ethyl-t-Butyl Ether <0.5 0.5 ug/L No 8260B AMW-4 5/15/2023 2-Hexanone <10 10 ug/L No 8260B AMW-4 5/15/2023 Isobutyl Alcohol <20 20 ug/L No 8260B AMW-4 5/15/2023 Methacrylonitrile <10 10 ug/L No 8260B AMW-4 5/15/2023 2-Butanone <10 10 ug/L No 8260B AMW-4 5/15/2023 Methyl Iodide <2 2 ug/L No 8260B AMW-4 5/15/2023 4-Methyl-2-Pentanone <10 10 ug/L No 8260B AMW-4 5/15/2023 Propionitrile <20 20 ug/L No 8260B AMW-4 5/15/2023 3-Methylcholanthrene <10 10 ug/L No 8270C AMW-4 5/15/2023 Methyl Methacrylate <40 40 ug/L No 8270C AMW-4 5/15/2023 Methyl Methanesulfonate <10 10 ug/L No 8270C AMW-4 5/15/2023 1,4-Naphthoquinone <20 20 ug/L No 8270C AMW-4 5/15/2023 5-Nitro-O-Toluidine <10 10 ug/L No 8270C AMW-4 5/15/2023 N-Nitroso-di-n-Butylamine <10 10 ug/L No 8270C AMW-4 5/15/2023 N-Nitrosodiethylamine <10 10 ug/L No 8270C AMW-4 5/15/2023 N-Nitrosomethylethylamine <10 10 ug/L No 8270C AMW-4 5/15/2023 N-Nitrosopiperidine <10 10 ug/L No 8270C AMW-4 5/15/2023 N-Nitrosopyrrolidine <10 10 ug/L No 8270C AMW-4 5/15/2023 Pentachlorobenzene <10 10 ug/L No 8270C AMW-4 5/15/2023 Pentachloronitrobenzene <10 10 ug/L No 8270C AMW-4 5/15/2023 Phenacetin <10 10 ug/L No 8270C AMW-4 5/15/2023 P-Phenylenediamine <20 20 ug/L No 8270C AMW-4 5/15/2023 PCB-1232 <50 50 ug/L No 8270C AMW-4 5/15/2023 PCB-1242 <50 50 ug/L No 8270C AMW-4 5/15/2023 PCB-1248 <50 50 ug/L No 8270C AMW-4 5/15/2023 PCB-1254 <50 50 ug/L No 8270C AMW-4 5/15/2023 PCB-1262 <50 50 ug/L No 8270C AMW-4 5/15/2023 PCB-1016 <50 50 ug/L No 8270C AMW-4 5/15/2023 PCB-1221 <50 50 ug/L No 8270C AMW-4 5/15/2023 PCB-1268 <50 50 ug/L No 8270C AMW-4 5/15/2023 PCB-1260 <50 50 ug/L No 8270C AMW-4 5/15/2023 Total PCB <50 50 ug/L No 8270C AMW-4 5/15/2023 Pronamide <10 10 ug/L No 8270C AMW-4 5/15/2023 Pyridine <10 10 ug/L No 8270C AMW-4 5/15/2023 Safrole <10 10 ug/L No 8270C AMW-4 5/15/2023 Tetrachlorobenzenes <10 10 ug/L No 8270C AMW-4 5/15/2023 2,3,4,6-Tetrachlorophenol <10 10 ug/L No 8270C AMW-4 5/15/2023 Toxaphene <100 100 ug/L No 8270C AMW-4 5/15/2023 O,O,O-Triethylphosphorothioate <10 10 ug/L No 8270C AMW-4 5/15/2023 Sym-Trinitrobenzene <10 10 ug/L No 8270C AMW-4 5/15/2023 Calcium, Dissolved 50 50 0.1 mg/L Yes 6010B AMW-4 5/15/2023 Magnesium, Dissolved 21 21 0.05 mg/L Yes 6010B AMW-4 5/15/2023 Sodium, Dissolved 52 52 1 mg/L Yes 6010B AMW-4 5/15/2023 Potassium, Dissolved 3.9 3.9 1 mg/L Yes 6010B AMW-4 5/15/2023 Bicarbonate 290 290 5 mg/L Yes 310.1 AMW-4 5/15/2023 Carbonate <2.5 2.5 mg/L No 310.1 AMW-4 5/15/2023 Chloride 15 15 0.5 mg/L Yes 300 AMW-4 5/15/2023 Nitrogen, Nitrate 1.2 1.2 0.1 mg/L Yes 300 AMW-4 5/15/2023 Sulfate 26 26 1 mg/L Yes 300 AMW-4 5/15/2023 Solids, Total Dissolved 360 A10 360 20 mg/L Yes 160.1 AMW-4 5/15/2023 Cyanide, Dissolved <0.005 0.005 mg/L No 335.4 AMW-4 5/15/2023 Sulfide, Dissolved <0.1 0.1 mg/L No 4500-S D AMW-4 5/15/2023 Total Organic Carbon 1.1 1.1 1 mg/L Yes 5310C AMW-4 5/15/2023 Chemical Oxygen Demand <25 25 mg O2/L No 410.4 AMW-4 5/15/2023 Aluminum, Total <50 50 ug/L No 6010B AMW-4 5/15/2023 Antimony, Dissolved <100 100 ug/L No 6010B AMW-4 5/15/2023 Arsenic, Dissolved 4.6 4.6 2 ug/L Yes 200.8 AMW-4 5/15/2023 Chromium, Hexavalent <2 2 ug/L No 7196 AMW-4 5/15/2023 Barium, Dissolved 270 270 10 ug/L Yes 6010B AMW-4 5/15/2023 Beryllium, Dissolved <10 10 ug/L No 6010B AMW-4 5/15/2023 Cadmium, Dissolved <10 10 ug/L No 6010B AMW-4 5/15/2023 Chromium, Dissolved <10 10 ug/L No 6010B AMW-4 5/15/2023 Cobalt, Dissolved <50 50 ug/L No 6010B AMW-4 5/15/2023 Copper, Dissolved <10 10 ug/L No 6010B AMW-4 5/15/2023 Iron, Dissolved <50 50 ug/L No 6010B AMW-4 5/15/2023 Lead, Dissolved <50 50 ug/L No 6010B AMW-4 5/15/2023 Manganese, Dissolved 35 35 10 ug/L Yes 6010B AMW-4 5/15/2023 Mercury, Dissolved 0.034 J 0.034 0.2 ug/L Yes 7470A AMW-4 5/15/2023 Nickel, Dissolved <10 10 ug/L No 6010B AMW-4 5/15/2023 Selenium, Dissolved 0.28 J 0.28 2 ug/L Yes 200.8 AMW-4 5/15/2023 Silver, Dissolved <10 10 ug/L No 6010B AMW-4 5/15/2023 Strontium 500 500 10 ug/L Yes 6010B Page 408 of 926