Related by context. Frequent words. (Click for all words.) 63 radioactive tritium 60 tritium 59 groundwater 58 tritium leaks 58 contaminating groundwater 58 drywell 57 contaminate groundwater 57 polluted groundwater 56 contaminate drinking 55 groundwater contamination 55 tritium leak 55 underground aquifer 54 Hydrochloric acid 53 aquifer 53 trichlorethylene TCE 53 reactor coolant 53 contaminated groundwater 53 chlorinated solvents 53 Seepage 52 radioactive contaminants 52 Hydrogen sulfide 52 contaminated soil 52 MtBE 51 radioactive 51 contaminants 51 seepage 51 Floridan Aquifer 50 Tritium 50 underground aquifers 50 leak 50 fracking fluid 50 fracking fluids 49 suspected carcinogen 49 aquifers 49 dewater 49 carbon tetrachloride 49 pollute groundwater 49 picocuries per 49 frac fluid 49 sediment 49 dissolved solids 49 contaminant 49 dry casks 49 hydrofluoric acid 49 harmful contaminants 49 groundwater extraction 49 sludge 48 contaminated sediment 48 No.2 reactor 48 harmless nitrogen 48 leachate 48 dry cask storage 48 groundwater remediation 48 contamination 48 contaminated sediments 48 chloramines 48 seawater 48 arsenic mercury 48 radioactive fuel rods 48 toxic vapors 48 deplete oxygen 48 reservoir 48 unnamed tributary 48 radioactive material 48 picocuries 48 seeped 48 dewatered 47 radioactivity 47 radioactive steam 47 contaminated 47 underground piping 47 PCBs polychlorinated biphenyls 47 saturated soils 47 trichlorethylene 47 radionuclides 47 sewage effluent 47 seeping 47 leached 47 americium 47 water 47 hydrogeologist 47 methane gas 47 Dewatering 47 wellfields 46 coal slurry 46 sumps 46 corrosion inhibitor 46 chemical vapors 46 fly ash 46 Raw sewage 46 dewatering 46 Anhydrous ammonia 46 tetrachlorethylene 46 leaks 46 chloramine 46 evaporation ponds 46 liquid ammonia 46 methane 46 Generating Plant 46 chlordane 46 arsenic