Related by context. Frequent words. (Click for all words.) 55 fracking fluid 55 fracking fluids 49 Rulison 48 hydraulic fracturing 48 drillers 48 fracking 47 Range Resources 47 contaminate groundwater 46 polluted groundwater 45 Kleen Energy plant 45 hydrofluoric acid 45 MSHA 45 Neslin 45 groundwater contamination 45 vapor intrusion 45 dissolved solids 44 contaminate drinking 44 Marcellus wells 44 coal slurry 44 Holmstead 43 COGCC 43 Beaudo 43 Eversole 43 Bresland 43 Columbia Gas Transmission 43 PennEnvironment 43 Equitable Gas 43 Fracking 43 contaminated groundwater 43 chemical solvents 43 Blankenship 43 contaminants 42 Steets 42 ash ponds 42 contaminated soils 42 fly ash 42 Brimmeier 42 Rahall 41 Lochbaum 41 arsenic mercury 41 radionuclides 41 hydrofracking 41 tritium leak 41 Marcellus Shale Coalition 41 Sheptor 41 DEQ 41 Golembeski 41 hazmat crews 41 perchlorethylene 41 spokesman Daren Beaudo 41 ATSDR 41 Sago miners 41 Appalachian Voices 41 Nockamixon 41 Petrosky 41 suspected carcinogen 41 Louviere 40 pollute groundwater 40 methane 40 CNX Gas 40 MTBE 40 toxic vapors 40 DEP 40 tritium 40 coal seam 40 radon 40 contaminated soil 40 underground piping 40 CONSOL 40 groundwater 40 Reichley 40 frack 40 MarkWest 40 nonhazardous 40 Hritz 40 Stricklin 40 EPA 40 BOEMRE 40 Brozena 40 TDEC 40 Chemical Depot 40 harmful contaminants 40 soil borings 40 spokeswoman Kendra Barkoff 40 QEP Resources 40 Rinehart 40 Yeager 40 hazardous chemicals 40 Scarnati 40 Thom Berry 39 Dominion Peoples 39 compressor stations 39 odorant 39 toxic chemicals 39 Rudy Husband 39 Gil Cerda 39 drilling 39 Hamsher 39 Surface Mining 39 radioactive tritium 39 hazardous substances