Related by context. Frequent words. (Click for all words.) 53 uranium tailings 52 Radioactive waste 51 groundwater aquifers 51 intermittent streams 50 Ogallala aquifer 50 radioactive sludge 50 streambanks 50 Yucca Mountain Nev. 49 waste repository 49 underground aquifer 49 Hanford Reach National 49 brackish groundwater 49 evaporation ponds 48 Snake Plain Aquifer 48 groundwater 48 Septic tanks 48 shallow aquifer 47 aquifer 47 radioactively contaminated 47 contaminating groundwater 47 revegetated 47 Photovoltaic panels 46 concrete casks 46 missile silos 46 hydroelectric turbines 46 aquifer recharge 46 aquifers 46 headwater streams 46 mill tailings 46 settling ponds 46 groundwater plume 45 Drip irrigation 45 Hanford Site 45 irrigated farmland 45 Hetch Hetchy Reservoir 45 Portneuf River 45 underground aquifers 45 drip pan 45 contaminate groundwater 45 sumps 44 irrigating crops 44 drainage culverts 44 drainfield 44 saline aquifers 44 clearwell 44 polluted groundwater 44 transuranic waste 44 Contaminated soil 44 tailings impoundment 44 pollute waterways 44 dry casks 44 Reverse osmosis 44 radioactive wastes 44 Wildfire threatens 44 riparian forest 44 geologic sequestration 44 earthen dikes 44 mountaintop removal mines 44 bd.className + = 44 groundwater basins 44 Mountaintop removal mining 44 salinization 43 Prado Dam 43 roadless lands 43 irrigated lands 43 Lake Maumelle 43 sludges 43 Great Artesian Basin 43 Pueblo Reservoir 43 Transmission Cooperative 43 groundwater basin 43 streambeds 43 rainwater catchment 43 Roadless areas 43 recharge groundwater 43 gasifying 43 Waste Isolation Pilot 43 Highly radioactive 43 Umatilla Chemical Depot 43 Potable water 43 radioactive waste 43 limestone quarries 43 Monocacy River 43 Columbia Generating Station 43 phosphate ore 42 Controlled burns 42 Floridan aquifer 42 contaminated groundwater 42 groundwater recharge 42 reactor fuel rods 42 tidal basin 42 groundwater extraction 42 storage tanks 42 irrigational 42 toxic residues 42 recontamination 42 underground salt caverns 42 biomass combustion 42 perforated pipe 42 Yolo Bypass 42 polluting groundwater