COMPLIANCE INFO_REV.4TH QTR-ANNUAL REPORT 6/26/2025

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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-13B 5/10/2024 Trichloroethene <0.5 ND 0.5 ug/L No 8260B AMW-13B 5/10/2024 Trichlorofluoromethane <0.5 ND 0.5 ug/L No 8260B AMW-13B 5/10/2024 1,2,3-Trichloropropane <1 ND 1 ug/L No 8260B AMW-13B 5/10/2024 Vinyl Chloride <0.5 ND 0.5 ug/L No 8260B AMW-13B 5/10/2024 Xylenes, Total <1 ND 1 ug/L No 8260B AMW-13B 5/10/2024 Acetone <10 ND 10 ug/L No 8260B AMW-13B 5/10/2024 Acetonitrile <10 ND 10 ug/L No 8260B AMW-13B 5/10/2024 Acrolein <10 ND 10 ug/L No 8260B AMW-13B 5/10/2024 Acrylonitrile <5 ND 5 ug/L No 8260B AMW-13B 5/10/2024 Allyl Chloride <5 ND 5 ug/L No 8260B AMW-13B 5/10/2024 Tert-Amyl-Methyl Ether <0.5 ND 0.5 ug/L No 8260B AMW-13B 5/10/2024 tert-Butyl Alcohol <10 ND 10 ug/L No 8260B AMW-13B 5/10/2024 Carbon Disulfide <1 ND 1 ug/L No 8260B AMW-13B 5/10/2024 2-Chloro-1,3-Butadiene <5 ND 5 ug/L No 8260B AMW-13B 5/10/2024 Trans-1,4-Dichloro-2-Butene <5 ND 5 ug/L No 8260B AMW-13B 5/10/2024 Diisopropyl Ether <0.5 ND 0.5 ug/L No 8260B AMW-13B 5/10/2024 Ethanol <250 ND 250 ug/L No 8260B AMW-13B 5/10/2024 Ethyl Methacrylate <4 ND 4 ug/L No 8260B AMW-13B 5/10/2024 Ethyl-t-Butyl Ether <0.5 ND 0.5 ug/L No 8260B AMW-13B 5/10/2024 2-Hexanone <10 ND 10 ug/L No 8260B AMW-13B 5/10/2024 Isobutyl Alcohol <20 ND 20 ug/L No 8260B AMW-13B 5/10/2024 Methacrylonitrile <10 ND 10 ug/L No 8260B AMW-13B 5/10/2024 2-Butanone <10 ND 10 ug/L No 8260B AMW-13B 5/10/2024 Methyl Iodide <2 ND 2 ug/L No 8260B AMW-13B 5/10/2024 4-Methyl-2-Pentanone <10 ND 10 ug/L No 8260B AMW-13B 5/10/2024 Propionitrile <20 ND 20 ug/L No 8260B AMW-13B 5/10/2024 Vinyl acetate <10 ND 10 ug/L No 8260B AMW-13B 5/10/2024 Calcium, Dissolved 42 42 0.1 mg/L Yes 6010B AMW-13B 5/10/2024 Magnesium, Dissolved 21 21 0.05 mg/L Yes 6010B AMW-13B 5/10/2024 Sodium, Dissolved 37 37 1 mg/L Yes 6010B AMW-13B 5/10/2024 Potassium, Dissolved 5.5 5.5 1 mg/L Yes 6010B AMW-13B 5/10/2024 Bicarbonate 250 250 5 mg/L Yes 310.1 AMW-13B 5/10/2024 Carbonate <2.5 ND 2.5 mg/L No 310.1 AMW-13B 5/10/2024 Chloride 12 12 0.5 mg/L Yes 300 AMW-13B 5/10/2024 Nitrogen, Nitrate 0.89 0.89 0.1 mg/L Yes 300 AMW-13B 5/10/2024 Sulfate 23 23 1 mg/L Yes 300 AMW-13B 5/10/2024 Solids, Total Dissolved 320 A10 320 20 mg/L Yes 160.1 AMW-13B 5/10/2024 Strontium 430 430 10 ug/L Yes 6010B AMW-13B 7/31/2024 Carbon tetrachloride <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Chloroform <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Benzene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Methyl Iodide <2 ND 2 ug/L No 8260B AMW-13B 7/31/2024 Dibromomethane <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Bromochloromethane <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Acetonitrile <10 ND 10 ug/L No 8260B AMW-13B 7/31/2024 Methylene Chloride <1 ND 1 ug/L No 8260B AMW-13B 7/31/2024 1,1-Dichloroethane <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 1,1-Dichloroethene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 tert-Butyl Alcohol <10 ND 10 ug/L No 8260B AMW-13B 7/31/2024 Isobutyl Alcohol <20 ND 20 ug/L No 8260B AMW-13B 7/31/2024 1,2-Dichloropropane <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Hexachlorobutadiene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Naphthalene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Ethylbenzene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Styrene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 1,2-Dichloroethane <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Propionitrile <20 ND 20 ug/L No 8260B AMW-13B 7/31/2024 4-Methyl-2-Pentanone <10 ND 10 ug/L No 8260B AMW-13B 7/31/2024 Diisopropyl Ether <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Toluene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Dibromochloromethane <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Methacrylonitrile <10 ND 10 ug/L No 8260B AMW-13B 7/31/2024 cis-1,2-Dichloroethene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 trans-1,2-Dichloroethene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 1,3-Dichlorobenzene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 1,1,1,2-Tetrachloroethane <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Ethyl-t-Butyl Ether <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 cis-1,3-Dichloropropene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 trans-1,3-Dichloropropene <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Sodium, Dissolved 35 35 1 mg/L Yes 6010B AMW-13B 7/31/2024 Nitrogen, Nitrate 0.94 0.94 0.1 mg/L Yes 300. AMW-13B 7/31/2024 Sulfate 23 23 1 mg/L Yes 300. AMW-13B 7/31/2024 Solids, Total Dissolved 330 A10 330 20 mg/L Yes 160.1 AMW-13B 7/31/2024 Ethanol <250 ND 250 ug/L No 8260B AMW-13B 7/31/2024 Acetone <10 ND 10 ug/L No 8260B AMW-13B 7/31/2024 1,1,1-Trichloroethane <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Bromomethane <1 ND 1 ug/L No 8260B AMW-13B 7/31/2024 Chloromethane <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Chloroethane <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Vinyl Chloride <0.5 ND 0.5 ug/L No 8260B AMW-13B 7/31/2024 Carbon Disulfide <1 ND 1 ug/L No 8260B Page 85 of 659