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 EW-3R 5/10/2023 Methylene Chloride <1 1 ug/L No 8260B EW-3R 5/10/2023 MTBE <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 Naphthalene <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 Styrene <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 1,1,1,2-Tetrachloroethane <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 1,1,2,2-Tetrachloroethane <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 Tetrachloroethene 0.61 0.61 0.5 ug/L Yes 8260B EW-3R 5/10/2023 Toluene <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 1,2,4-Trichlorobenzene <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 1,1,1-Trichloroethane <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 1,1,2-Trichloroethane <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 Trichloroethene 0.2 J 0.2 0.5 ug/L Yes 8260B EW-3R 5/10/2023 Trichlorofluoromethane <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 1,2,3-Trichloropropane <1 1 ug/L No 8260B EW-3R 5/10/2023 Vinyl Chloride <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 Xylenes, Total <1 1 ug/L No 8260B EW-3R 5/10/2023 Acetone <10 10 ug/L No 8260B EW-3R 5/10/2023 Acetonitrile <10 10 ug/L No 8260B EW-3R 5/10/2023 Acrolein <10 10 ug/L No 8260B EW-3R 5/10/2023 Acrylonitrile <5 5 ug/L No 8260B EW-3R 5/10/2023 Allyl Chloride <5 5 ug/L No 8260B EW-3R 5/10/2023 Tert-Amyl-Methyl Ether <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 tert-Butyl Alcohol <10 10 ug/L No 8260B EW-3R 5/10/2023 Carbon Disulfide <1 1 ug/L No 8260B EW-3R 5/10/2023 2-Chloro-1,3-Butadiene <5 5 ug/L No 8260B EW-3R 5/10/2023 Trans-1,4-Dichloro-2-Butene <5 5 ug/L No 8260B EW-3R 5/10/2023 Diisopropyl Ether <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 Ethanol <250 250 ug/L No 8260B EW-3R 5/10/2023 Ethyl Methacrylate <4 4 ug/L No 8260B EW-3R 5/10/2023 Ethyl-t-Butyl Ether <0.5 0.5 ug/L No 8260B EW-3R 5/10/2023 2-Hexanone <10 10 ug/L No 8260B EW-3R 5/10/2023 Isobutyl Alcohol <20 20 ug/L No 8260B EW-3R 5/10/2023 Methacrylonitrile <10 10 ug/L No 8260B EW-3R 5/10/2023 2-Butanone <10 10 ug/L No 8260B EW-3R 5/10/2023 Methyl Iodide <2 2 ug/L No 8260B EW-3R 5/10/2023 4-Methyl-2-Pentanone <10 10 ug/L No 8260B EW-3R 5/10/2023 Propionitrile <20 20 ug/L No 8260B EW-3R 5/10/2023 Vinyl acetate <10 10 ug/L No 8260B EW-3R 12/28/2023 Ethanol <250 ND 250 ug/L No 8260B EW-3R 12/28/2023 Acetone <10 ND 10 ug/L No 8260B EW-3R 12/28/2023 Benzene <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 1,1,1-Trichloroethane <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 Chloromethane <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 Bromochloromethane <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 Acetonitrile <10 ND 10 ug/L No 8260B EW-3R 12/28/2023 Bromoform <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 1,1-Dichloroethane <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 1,1-Dichloroethene <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 Dichlorodifluoromethane <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 2-Butanone <10 ND 10 ug/L No 8260B EW-3R 12/28/2023 1,1,2,2-Tetrachloroethane <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 1,2-Dichlorobenzene <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 Ethyl Methacrylate <4 ND 4 ug/L No 8260B EW-3R 12/28/2023 1,4-Dichlorobenzene 0.1 J 0.1 0.5 ug/L Yes 8260B EW-3R 12/28/2023 Allyl Chloride <5 ND 5 ug/L No 8260B EW-3R 12/28/2023 Acrylonitrile <5 ND 5 ug/L No 8260B EW-3R 12/28/2023 4-Methyl-2-Pentanone <10 ND 10 ug/L No 8260B EW-3R 12/28/2023 Diisopropyl Ether <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 Chlorobenzene <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 Trans-1,4-Dichloro-2-Butene <5 ND 5 ug/L No 8260B EW-3R 12/28/2023 Methacrylonitrile <10 ND 10 ug/L No 8260B EW-3R 12/28/2023 Tetrachloroethene 0.41 J 0.41 0.5 ug/L Yes 8260B EW-3R 12/28/2023 cis-1,2-Dichloroethene 0.16 J 0.16 0.5 ug/L Yes 8260B EW-3R 12/28/2023 1,1-Dichloropropene <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 1,1,1,2-Tetrachloroethane <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 Xylenes, Total <1 ND 1 ug/L No 8260B EW-3R 12/28/2023 MTBE <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 trans-1,3-Dichloropropene <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 Carbon tetrachloride <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 Chloroform <0.5 ND 0.5 ug/L No 8260B EW-3R 12/28/2023 Bromomethane <1 ND 1 ug/L No 8260B EW-3R 12/28/2023 Methyl Iodide <2 ND 2 ug/L No 8260B EW-3R 12/28/2023 Dibromomethane <0.5 ND 0.5 ug/L No 8260B Page 685 of 926