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-2 12/28/2023 Chloromethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Bromochloromethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Acetonitrile <10 ND 10 ug/L No 8260B EW-2 12/28/2023 Bromoform <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 1,1-Dichloroethane 0.54 0.54 0.5 ug/L Yes 8260B EW-2 12/28/2023 1,1-Dichloroethene <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Dichlorodifluoromethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 2-Butanone <10 ND 10 ug/L No 8260B EW-2 12/28/2023 1,1,2,2-Tetrachloroethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 1,2-Dichlorobenzene 0.13 J 0.13 0.5 ug/L Yes 8260B EW-2 12/28/2023 Ethyl Methacrylate <4 ND 4 ug/L No 8260B EW-2 12/28/2023 1,4-Dichlorobenzene 0.29 J 0.29 0.5 ug/L Yes 8260B EW-2 12/28/2023 Allyl Chloride <5 ND 5 ug/L No 8260B EW-2 12/28/2023 Acrylonitrile <5 ND 5 ug/L No 8260B EW-2 12/28/2023 4-Methyl-2-Pentanone <10 ND 10 ug/L No 8260B EW-2 12/28/2023 Diisopropyl Ether <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Chlorobenzene 0.13 J 0.13 0.5 ug/L Yes 8260B EW-2 12/28/2023 Trans-1,4-Dichloro-2-Butene <5 ND 5 ug/L No 8260B EW-2 12/28/2023 Methacrylonitrile <10 ND 10 ug/L No 8260B EW-2 12/28/2023 Tetrachloroethene 1.3 1.3 0.5 ug/L Yes 8260B EW-2 12/28/2023 cis-1,2-Dichloroethene 2.5 2.5 0.5 ug/L Yes 8260B EW-2 12/28/2023 1,1-Dichloropropene <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 1,1,1,2-Tetrachloroethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Xylenes, Total <1 ND 1 ug/L No 8260B EW-2 12/28/2023 MTBE <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 trans-1,3-Dichloropropene <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Carbon tetrachloride <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Chloroform <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Bromomethane <1 ND 1 ug/L No 8260B EW-2 12/28/2023 Methyl Iodide <2 ND 2 ug/L No 8260B EW-2 12/28/2023 Dibromomethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Chloroethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Vinyl Chloride <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Methylene Chloride <1 ND 1 ug/L No 8260B EW-2 12/28/2023 Carbon Disulfide <1 ND 1 ug/L No 8260B EW-2 12/28/2023 Bromodichloromethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 tert-Butyl Alcohol <10 ND 10 ug/L No 8260B EW-2 12/28/2023 Trichlorofluoromethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Isobutyl Alcohol <20 ND 20 ug/L No 8260B EW-2 12/28/2023 1,2-Dichloropropane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 1,1,2-Trichloroethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Trichloroethene 1.2 1.2 0.5 ug/L Yes 8260B EW-2 12/28/2023 Hexachlorobutadiene <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Naphthalene <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 1,2-Dibromo-3-Chloropropane <1 ND 1 ug/L No 8260B EW-2 12/28/2023 1,2,3-Trichloropropane <1 ND 1 ug/L No 8260B EW-2 12/28/2023 Ethylbenzene <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Styrene <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 1,2-Dibromoethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Acrolein <10 ND 10 ug/L No 8260B EW-2 12/28/2023 1,2-Dichloroethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Propionitrile <20 ND 20 ug/L No 8260B EW-2 12/28/2023 Vinyl acetate <10 ND 10 ug/L No 8260B EW-2 12/28/2023 Toluene <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 1,2,4-Trichlorobenzene <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Dibromochloromethane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 2-Chloro-1,3-Butadiene <5 ND 5 ug/L No 8260B EW-2 12/28/2023 trans-1,2-Dichloroethene <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 1,3-Dichlorobenzene <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 2-Hexanone <10 ND 10 ug/L No 8260B EW-2 12/28/2023 2,2-Dichloropropane <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Ethyl-t-Butyl Ether <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 Tert-Amyl-Methyl Ether <0.5 ND 0.5 ug/L No 8260B EW-2 12/28/2023 cis-1,3-Dichloropropene <0.5 ND 0.5 ug/L No 8260B EW-3R 11/22/2022 Methylene Chloride ND(1)1 ug/L No 8260B EW-3R 11/22/2022 MTBE ND(0.5)0.5 ug/L No 8260B EW-3R 11/22/2022 Chloroethane ND(0.5)0.5 ug/L No 8260B EW-3R 11/22/2022 Chlorobenzene ND(0.5)0.5 ug/L No 8260B EW-3R 11/22/2022 Carbon tetrachloride ND(0.5)0.5 ug/L No 8260B EW-3R 11/22/2022 Bromomethane ND(1)1 ug/L No 8260B EW-3R 11/22/2022 Bromoform ND(0.5)0.5 ug/L No 8260B EW-3R 11/22/2022 Bromodichloromethane ND(0.5)0.5 ug/L No 8260B EW-3R 11/22/2022 Chloroform ND(0.5)0.5 ug/L No 8260B Page 682 of 926