carbon tetrachloride, arsenic, vinyl chloride, dioxane, polychlorinated biphenyl, trichloroethane, chlordane, tetrachloroethylene, contaminant, trichloroethylene, methylene chloride, carbon disulfide, benzene, heptachlor, pentachlorophenol, dieldrin, ethylbenzene, acrolein, methyl ethyl ketone, toxaphene, dioxin, enterococcus, ppb, solvents, biphenyl, perchlorate, pollutant, methyl chloride, polychlorinated, bromate, hydrogen sulfide, chromic acid, chlorine, perchloroethylene, coliform bacteria, chromium, xylenes, coliform, arsenide, chemicals, chlorobenzene, nitrobenzene, orthophosphate, nitrates, tritium, hydrogen chloride, tremolite, enteric bacteria, methyl isobutyl ketone, hydrofluoric acid, radium, chloride, toxins, carcinogen, allyl alcohol, endotoxins, sodium hydroxide, picric acid, hydrochloric acid, dichloromethane, heptane, radioactivity, chlorpyrifos, cyanides, nitrogen dioxide, perc, contamination, furan, cesium, hexavalent, organochlorine, organophosphate, oxidizing agent, thallium, coal tar, chloramine, pyrene, isopropyl, americium, phenols, toluene, corrosives, lindane, simazine, hazardous waste, formaldehyde, sodium hypochlorite, phosphine, barium, magnesium hydroxide, leachate, phthalate, asbestos, curium, ammonia, turbidity, thinners, ethyl acetate, dichlorvos, pesticide, chlorpheniramine, amphibole