Related by context. Frequent words. (Click for all words.) 63 tetrachlorethylene 62 perchlorethylene 58 perc 58 suspected carcinogen 56 methylene chloride 55 solvents 55 trichlorethylene TCE 54 carcinogenic chemicals 53 degreaser 53 toxic chemicals 53 chemicals 52 polluted groundwater 51 harmful contaminants 51 harmful chemicals 51 chlorinated solvents 49 cleaning solvents 49 hazardous chemicals 49 dry cleaning 49 harmful toxins 49 thinners 49 volatile organic compounds 49 contaminated soil 48 degreasing 48 toxic substances 48 trichlorethylene 48 Perc 48 chemical vapors 48 contaminated soils 48 wood preservative 48 Solvents 47 degreasers 47 sodium hypochlorite 47 poisonous chemicals 47 Hydrochloric acid 47 isopropyl alcohol 47 pollutants 47 contaminants 46 Triclosan 46 polychlorinated biphenyls PCBs 46 dry cleaners 46 Hydrogen sulfide 46 softener 46 bleach 46 contaminant 46 flammable chemicals 46 TCE 46 diazinon 46 Disinfectant 46 vinyl chloride 46 additive MTBE 46 Residues 46 Toxic chemicals 46 groundwater contamination 46 chlorine 45 colorless liquid 45 VOCs 45 arsenic 45 hexavalent chromium 45 VOC emissions 45 chlordane 45 toxins 45 organic solvents 45 hazardous waste disposal 45 bio solids 45 chloramines 45 noxious chemicals 45 contaminated groundwater 45 chlorine dioxide 45 pesticides 44 herbicides pesticides 44 Malathion 44 elemental mercury 44 hazardous fumes 44 deodorizers 44 coal tar 44 wood preservatives 44 smokestack emissions 44 hazardous waste 44 dishwashing soap 44 harmful substances 44 chemical solvents 44 contaminate groundwater 44 asbestos fibers 44 potassium hydroxide 44 pesticide 44 contaminated 44 PCBs 44 flame retardant chemicals 44 residues 43 chlorine bleach 43 pollutant 43 Environmental Protection Agency 43 lawn fertilizers 43 plasticizers 43 chloramine 43 disinfection byproducts 43 polybrominated diphenyl ethers 43 Cleaning 43 drycleaning 43 contaminates 43 contaminate drinking