Related by context. Frequent words. (Click for all words.) 60 valley fills 55 mountaintop mining 54 mountaintop removal 52 coal slurry 50 mine tailings 50 ash ponds 50 Clean Water Act 50 mines 50 wastewater discharge 49 coal mines 49 mountaintop removal mining 49 coal mining 47 Mountaintop removal 47 freshwater wetlands 47 impoundments 47 mountaintop removal coal 46 tailings 46 coalfields 46 mountaintops 46 watersheds 46 coal mine 46 streambeds 45 freshwater mussels 45 coal ash 45 coalfield 45 mine 45 mill tailings 45 ridge tops 45 mining 45 dredge spoils 45 pollute groundwater 45 bottomlands 44 Pebble Mine 44 sediment 44 waterways 44 longwall mining 44 gravel extraction 44 sediment runoff 44 total dissolved solids 44 gravel pits 44 smokestack emissions 44 evaporation ponds 44 mercury pollution 44 clearcuts 44 tidal wetlands 44 fracking 44 wetlands 43 Bradwood 43 effluent discharge 43 limestone quarry 43 trout streams 43 permitting 43 dissolved solids 43 dischargers 43 Surface Mining 43 Niyamgiri hills 43 headwaters 43 coalmines 43 coal seams 43 waterbodies 42 Marcellus Shale drilling 42 coalmine 42 quarries 42 opencast 42 wastewater discharges 42 dredge 42 mine shafts 42 ridgetops 42 coal miners 42 polluted groundwater 42 groundwater pumping 42 dewatering 42 crematories 42 ridgelines 42 Elimination System 41 Surface Mine 41 riverbeds 41 Water Quality 41 phosphate mining 41 sage grouse habitat 41 coal 41 DEP 41 injection wells 41 Marcellus Shale wells 41 uranium mines 41 contaminated sediments 41 coalmining 41 beaver dams 41 dewater 41 Marcellus wells 41 grade ores 41 groundwater 41 drainage basins 41 DEQ 41 coalbed methane 40 quarry 40 earthen dams 40 silt 40 pollution 40 placer mining 40 riverkeeper