Related by context. Frequent words. (Click for all words.) 45 ash ponds 44 sludge 43 coal slurry 41 coal ash 40 fly ash 39 manure 39 red sludge 39 total dissolved solids 38 contaminated soils 38 oily residue 38 Exxon Valdez spilled 38 tar balls 37 spill 37 oily sheen 37 chlorides 37 slurry 36 contaminate drinking 36 Kingston Fossil Plant 36 sediment 36 poultry manure 36 Talmadge Creek 36 coal 36 dissolved solids 36 crushed limestone 36 toxic sludge 36 contaminated groundwater 36 puddled 36 seeped 35 drilling rig exploded 35 contaminated 35 spilled 35 contaminate groundwater 35 oily substance 35 ADEQ 35 methane 35 Cleanup crews 35 underground aquifer 34 valley fills 34 Hazmat crews 34 tarballs 34 mill tailings 34 chicken manure 34 DEQ 34 ash 34 sumps 34 sulfuric 34 contaminated soil 34 suspended solids 34 dirtier 34 browner 34 polluted 34 gallons 34 raw sewage 34 ruptured pipe 34 sodium hydroxide 33 silt 33 Horizon exploded 33 Beaudo 33 Environmental Quality 33 soot 33 residue 33 muck 33 radioactive tritium 33 coastal marshes 33 ceiling caved 33 livestock manure 33 mud 33 groundwater 33 seepage 33 globs 33 rig exploded 33 sewage 33 toxic stew 32 Deepwater Horizon 32 pumice 32 radioactive contaminants 32 contaminants 32 landfills 32 leachate 32 plume 32 oozed 32 Clean Water Act 32 spills 32 molten steel 32 blacker 32 wastewater 32 waterways 32 offshore drilling rig Deepwater 32 TDEC 32 Tinsman 32 coal mines 32 hydrogen sulfide 32 oily 32 sewage sludge 32 sulfurous 32 creosote 32 ammonia 32 Raw sewage 32 Heitzman 32 pollute groundwater 32 dirtied