COMPLIANCE INFO_Q3 2025 MONITORING REPORT 10-30-25

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Appendix D - Cumulative Historical Data for the Past Year EW-5 Dup 3/20/2025 Carbon Disulfide <1.0 ND 1 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Trans-1,4-Dichloro-2-Butene <5.0 ND 5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Diisopropyl Ether <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Ethanol <250 ND 250 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Ethyl-t-Butyl Ether <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 2-Hexanone <10 ND 10 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 2-Butanone <10 ND 10 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Methyl Iodide <2.0 ND 2 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 4-Methyl-2-Pentanone <10 ND 10 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Vinyl acetate <10 ND 10 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Benzene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Bromochloromethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Bromodichloromethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Bromoform <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Bromomethane <1.0 ND 1 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Carbon tetrachloride 17 17 0.5 μg/L ug/L Yes 8260B EW-5 Dup 3/20/2025 Chlorobenzene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Chloroethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Chloroform 8.6 8.6 0.5 μg/L ug/L Yes 8260B EW-5 Dup 3/20/2025 Chloromethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Dibromochloromethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 1,2-Dibromo-3-Chloropropane <1.0 ND 1 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 1,2-Dibromoethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Dibromomethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 1,2-Dichlorobenzene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 1,3-Dichlorobenzene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 1,4-Dichlorobenzene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Dichlorodifluoromethane 0.67 0.67 0.5 μg/L ug/L Yes 8260B EW-5 Dup 3/20/2025 1,1-Dichloroethane 0.25 J 0.25 0.5 μg/L ug/L Yes 8260B EW-5 Dup 3/20/2025 1,2-Dichloroethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 1,1-Dichloroethene 0.55 0.55 0.5 μg/L ug/L Yes 8260B EW-5 Dup 3/20/2025 cis-1,2-Dichloroethene 0.14 J 0.14 0.5 μg/L ug/L Yes 8260B EW-5 Dup 3/20/2025 trans-1,2-Dichloroethene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 1,2-Dichloropropane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 cis-1,3-Dichloropropene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 trans-1,3-Dichloropropene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Ethylbenzene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Hexachlorobutadiene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Methylene Chloride <1.0 ND 1 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 MTBE <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Naphthalene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Styrene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 1,1,1,2-Tetrachloroethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 1,1,2,2-Tetrachloroethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Tetrachloroethene 9.8 9.8 0.5 μg/L ug/L Yes 8260B EW-5 Dup 3/20/2025 Toluene 1.8 1.8 0.5 μg/L ug/L Yes 8260B EW-5 Dup 3/20/2025 1,2,4-Trichlorobenzene <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 1,1,1-Trichloroethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 1,1,2-Trichloroethane <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Trichloroethene 6.3 6.3 0.5 μg/L ug/L Yes 8260B EW-5 Dup 3/20/2025 Trichlorofluoromethane 0.16 J 0.16 0.5 μg/L ug/L Yes 8260B EW-5 Dup 3/20/2025 1,2,3-Trichloropropane <1.0 ND 1 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Vinyl Chloride <0.50 ND 0.5 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Xylenes, Total <1.0 ND 1 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Acetone <10 ND 10 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Acetonitrile <10 ND 10 μg/L ug/L No 8260B EW-5 Dup 3/20/2025 Acenaphthene <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Acenaphthylene <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Aldrin <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Anthracene <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Benzo(a)anthracene <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Benzo(b)fluoranthene <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Benzo(k)fluoranthene <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Benzo(a)pyrene <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Benzo(g,h,i)perylene <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Benzyl Alcohol <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Butylbenzylphthalate <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 a-BHC <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 b-BHC <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 d-BHC <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 g-BHC (Lindane) <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Bis(2-chloroethoxy)methane <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Bis(2-chloroethyl)ether <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Bis(2-chloroisopropyl)ether <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Bis(2-ethylhexyl)phthalate <4.0 ND 4 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 4-Bromophenyl-phenylether <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 4-Chloroaniline <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 2-Chloronaphthalene <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 4-Chlorophenyl-phenylether <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 Chrysene <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 4,4-DDD <2.0 ND 2 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 4,4-DDE <3.0 ND 3 μg/L ug/L No 8270C EW-5 Dup 3/20/2025 4,4-DDT <2.0 ND 2 μg/L ug/L No 8270C