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Appendix D. Cumulative Historical Data for the Past Year <br /> Location Sample Date Parameter Result Lab Result Lab Limit Lab Unit Detect Method <br /> EW-4 2/6/2026 4:20:00 PM Styrene <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM 1,1,1,2-Tetrachloroethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM 1,1,2,2-Tetrachloroethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Tetrachloroethene <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Toluene <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM 1,2,4-Trichlorobenzene <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM 1,1,1-Trichloroethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM 1,1,2-Trichloroethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Trichloroethene <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Trichlorofluoromethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM 1,2,3-Trichloropropane <1.0 ND 1 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Vinyl Chloride <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Xylenes,Total <1.0 ND 1 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Acetone <10 ND 10 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Acetonitrile <10 ND 10 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Acrolein <10 ND 10 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Acrylonitrile <5.0 ND 5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Allyl Chloride <5000 ND 5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Tert-Amyl-Methyl Ether <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM tert-Butyl Alcohol <10 ND 10 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Carbon Disulfide <1.0 ND 1 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM 2-Chloro-1,3-Butadiene <5.0 ND 5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Trans-1,4-Dichloro-2-Butene <5.0 ND 5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Diisopropyl Ether <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Ethanol <250 ND 250 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Ethyl Methacrylate <4.0 ND 4 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Ethyl-t-Butyl Ether <0.50 ND 0.5 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM 2-Hexanone <10 ND 10 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Isobutyl Alcohol <20 ND 20 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Methacrylonitrile <10 ND 10 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM 2-Butanone <10 ND 10 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Methyl Iodide <2.0 ND 2 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM 4-Methyl-2-Pentanone <10 ND 10 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Propionitrile <20 ND 20 ug/L No 8260B <br /> EW-4 2/6/2026 4:20:00 PM Vinyl acetate <10 ND 10 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Benzene <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Bromochloromethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Bromodichloromethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Bromoform <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Bromomethane <1.0 ND 1 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Carbon tetrachloride <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Chlorobenzene <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Chloroethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Chloroform <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Chloromethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Dibromochloromethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM 1,2-Dibromo-3-Chloropropane <1.0 ND 1 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM 1,2-Dibromoethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Dibromomethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM 1,2-Dichlorobenzene <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM 1,3-Dichlorobenzene <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM 1,4-Dichlorobenzene 0.18 J 0.18 0.5 ug/L Yes 18260B <br /> EW-5 2/6/2026 4:14:00 PM Dichlorodifluoromethane <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM 1,1-Dichloroethane 0.53 0.53 0.5 ug/L Yes 8260B <br /> EW-5 2/6/2026 4:14:00 PM 1,2-Dichloroethane 0.29 J 0.29 0.5 ug/L Yes 8260B <br /> EW-5 2/6/2026 4:14:00 PM 1,1-Dichloroethene <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM cis-1,2-Dichloroethene 1.6 1.6 0.5 ug/L Yes 18260B <br /> EW-5 2/6/2026 4:14:00 PM trans-1,2-Dichloroethene <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM 1,2-Dichloropropane <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM 2,2-Dichloropropane <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM 1,1-Dichloropropene <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM cis-1,3-Dichloropropene <0.50 ND 0.5 ug/L No 18260B <br /> EW-5 2/6/2026 4:14:00 PM trans-1,3-Dichloropropene <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Ethylbenzene <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Hexachlorobutadiene <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM Methylene Chloride <1.0 ND 1 ug/L No 8260B <br /> EW-5 2/6/2026 4:14:00 PM MTBE <0.50 ND 0.5 ug/L No 18260B <br /> EW-5 2/6/2026 4:14:00 PM Naphthalene <0.50 ND 0.5 ug/L No 8260B <br /> EW-5 3/20/2025 10:25:00 AM Heptachlor epoxide <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Hexachlorobenzene <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Hexachlorocyclopentadiene <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Hexachloroethane <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Indeno(1,2,3-cd)pyrene <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Isophorone <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2-Methylnaphthalene <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2-Naphthylamine <20 ND 20 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2-Nitroaniline <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 3-Nitroaniline <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 4-Nitroaniline <5.0 ND 5 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Nitrobenzene <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM N-Nitrosodimethylamine <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM N-Nitrosodi-n-propylamine <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM N-Nitrosodiphenylamine <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Phenanthrene <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Pyrene <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 4-Chloro-3-Methylphenol <5.0 ND 5 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2-Chlorophenol <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2,4-Dichlorophenol <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2,4-Dimethylphenol <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 4,6-Dinitro-2-methylphenol <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2,4-Di nitro phenol <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2-Methylphenol <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 3,4-Methylphenol <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2-Nitrophenol <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 4-Nitrophenol <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Pentachlorophenol <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Phenol <2.0 ND 2 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2,4,5-Trichlorophenol <5.0 ND 5 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Acetophenone <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2-Acetylaminofluorene <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 4-Aminobiphenyl <20 ND 20 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM alpha-Chlordane <5.0 ND 5 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Chlorobenzilate <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Diallate <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 2,6-Dichlorophenol <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 4-Dimethylaminoazobenzene <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 7,12-Di methyl benz(a)a nth race n <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 3,3-Dimethylbenzidine <20 ND 20 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM M-Dinitrobenzene <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Diphenylamine <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Ethyl Methanesulfonate <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Famphur <20 ND 20 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Hexachloropropene <20 ND 20 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Isodrin <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Isosafrole <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Kepone <20 ND 20 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Methapyrilene <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Methoxychlor <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 3-Methylcholanthrene <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Methyl Methacrylate <40 ND 40 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Methyl Methanesulfonate <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 1,4-Naphthoquinone <20 ND 20 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM 5-Nitro-O-Toluidine <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM N-Nitroso-di-n-Butylamine <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM N-Nitrosodiethylamine <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM N-Nitrosomethylethylamine <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM N-Nitrosopiperidine <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM N-Nitrosopyrrolidine <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Pentachlorobenzene <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Pentachloronitrobenzene <10 ND 10 ug/L No 8270C <br /> EW-5 3/20/2025 10:25:00 AM Phenacetin <10 ND 10 ug/L No 8270C <br />