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-5 12/28/2023 Trans-1,4-Dichloro-2-Butene <5 ND 5 ug/L No 8260B EW-5 12/28/2023 Dibromochloromethane <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Methacrylonitrile <10 ND 10 ug/L No 8260B EW-5 12/28/2023 cis-1,2-Dichloroethene 2 2 0.5 ug/L Yes 8260B EW-5 12/28/2023 1,1-Dichloropropene <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 1,1,1,2-Tetrachloroethane <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Ethyl-t-Butyl Ether <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Xylenes, Total <1 ND 1 ug/L No 8260B EW-5 12/28/2023 trans-1,3-Dichloropropene <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Carbon tetrachloride <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Chloroform <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 1,1,1-Trichloroethane <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Bromomethane <1 ND 1 ug/L No 8260B EW-5 12/28/2023 Dibromomethane <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Chloroethane <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Vinyl Chloride <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Methylene Chloride <1 ND 1 ug/L No 8260B EW-5 12/28/2023 Bromodichloromethane <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 1,1-Dichloroethane 0.66 0.66 0.5 ug/L Yes 8260B EW-5 12/28/2023 tert-Butyl Alcohol <10 ND 10 ug/L No 8260B EW-5 12/28/2023 Isobutyl Alcohol <20 ND 20 ug/L No 8260B EW-5 12/28/2023 1,2-Dichloropropane <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 1,1,2-Trichloroethane <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Hexachlorobutadiene <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Naphthalene <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 1,2,3-Trichloropropane <1 ND 1 ug/L No 8260B EW-5 12/28/2023 Ethylbenzene <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Styrene <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Acrolein <10 ND 10 ug/L No 8260B EW-5 12/28/2023 1,2-Dichloroethane 0.37 J 0.37 0.5 ug/L Yes 8260B EW-5 12/28/2023 Propionitrile <20 ND 20 ug/L No 8260B EW-5 12/28/2023 Vinyl acetate <10 ND 10 ug/L No 8260B EW-5 12/28/2023 Toluene <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Chlorobenzene 0.12 J 0.12 0.5 ug/L Yes 8260B EW-5 12/28/2023 1,2,4-Trichlorobenzene <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 2-Chloro-1,3-Butadiene <5 ND 5 ug/L No 8260B EW-5 12/28/2023 Tetrachloroethene 1.2 1.2 0.5 ug/L Yes 8260B EW-5 12/28/2023 trans-1,2-Dichloroethene <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 1,3-Dichlorobenzene <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 2-Hexanone <10 ND 10 ug/L No 8260B EW-5 12/28/2023 2,2-Dichloropropane <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 Tert-Amyl-Methyl Ether <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 MTBE <0.5 ND 0.5 ug/L No 8260B EW-5 12/28/2023 cis-1,3-Dichloropropene <0.5 ND 0.5 ug/L No 8260B Field Blank 9/13/2023 Carbon tetrachloride ND(0.5)ND 0.5 ug/L No 8260B Field Blank 9/18/2023 Carbon tetrachloride ND(0.5)ND 0.5 ug/L No 8260B Field Blank 9/12/2023 Ethanol ND(250)ND 250 ug/L No 8260B Field Blank 8/30/2023 Ethanol ND(250)ND 250 ug/L No 8260B Field Blank 8/25/2023 Ethanol ND(250)ND 250 ug/L No 8260B Field Blank 8/10/2023 Ethanol ND(250)ND 250 ug/L No 8260B Field Blank 9/18/2023 Ethanol ND(250)ND 250 ug/L No 8260B Field Blank 8/8/2023 Acetone ND(10)ND 10 ug/L No 8260B Field Blank 9/18/2023 Acetone ND(10)ND 10 ug/L No 8260B Field Blank 9/18/2023 Chloroform ND(0.5)ND 0.5 ug/L No 8260B Field Blank 9/12/2023 Chloroform 0.21 0.21 0.5 ug/L Yes 8260B Field Blank 8/10/2023 Benzene ND(0.5)ND 0.5 ug/L No 8260B Field Blank 8/25/2023 Benzene ND(0.5)ND 0.5 ug/L No 8260B Field Blank 8/30/2023 Benzene ND(0.5)ND 0.5 ug/L No 8260B Field Blank 9/13/2023 Benzene ND(0.5)ND 0.5 ug/L No 8260B Field Blank 9/12/2023 Carbon tetrachloride ND(0.5)ND 0.5 ug/L No 8260B Field Blank 8/10/2023 Carbon tetrachloride ND(0.5)ND 0.5 ug/L No 8260B Field Blank 8/25/2023 Carbon tetrachloride ND(0.5)ND 0.5 ug/L No 8260B Field Blank 8/30/2023 Carbon tetrachloride ND(0.5)ND 0.5 ug/L No 8260B Field Blank 8/4/2023 Carbon tetrachloride ND(0.5)ND 0.5 ug/L No 8260B Field Blank 8/8/2023 Carbon tetrachloride ND(0.5)ND 0.5 ug/L No 8260B Field Blank 8/8/2023 Ethanol ND(250)ND 250 ug/L No 8260B Field Blank 8/4/2023 Ethanol ND(250)ND 250 ug/L No 8260B Field Blank 9/13/2023 Ethanol ND(250)ND 250 ug/L No 8260B Field Blank 8/4/2023 Acetone ND(10)ND 10 ug/L No 8260B Field Blank 9/12/2023 Acetone ND(10)ND 10 ug/L No 8260B Field Blank 8/10/2023 Acetone ND(10)ND 10 ug/L No 8260B Field Blank 8/25/2023 Acetone ND(10)ND 10 ug/L No 8260B Field Blank 8/30/2023 Acetone ND(10)ND 10 ug/L No 8260B Page 693 of 926