Related by context. Frequent words. (Click for all words.) 63 Pueblo Reservoir 57 aquifer recharge 55 groundwater aquifers 55 reservoir 55 oxbow 55 reservoirs 54 instream flow 54 tributary streams 54 Pend Oreille River 54 settling ponds 53 Conemaugh River 53 Flaming Gorge Reservoir 53 flowage 53 shallow aquifer 53 intermittent streams 53 Monocacy River 53 beaver ponds 53 retention basins 52 coulees 52 wastewater 52 sanitary sewage 52 forested wetlands 52 hydroelectric turbines 52 Aquifers 52 evaporation ponds 52 Gavins Point Dam 52 sand dredged 52 Animas La Plata 51 sewage effluent 51 Kaskaskia River 51 headwater streams 51 headwater 51 wastewater effluent 51 mussel species 51 detention basins 51 Flaming Gorge 51 freshwater mussels 51 wellfields 51 Ogallala Aquifer 51 groundwater recharge 51 riparian buffer 51 Sheyenne River 51 Floridan Aquifer 51 creeks rivers 51 nutrient loading 51 underground aquifer 50 Suisun Marsh 50 ocean outfall 50 Lower Snake River 50 upstream 50 lakes 50 groundwater 50 unnamed tributary 50 basin 50 water 50 retention basin 50 native brook trout 50 injection wells 50 Upper Klamath 50 Bushkill Creek 50 contaminated sediments 50 coulee 50 drainage basins 50 outfall 50 deplete oxygen 49 pipeline 49 dredged material 49 Chassahowitzka 49 Esopus Creek 49 Lake Sakakawea 49 aquifer 49 frac sand 49 aquifers 49 streambeds 49 outfall pipe 49 canals 49 Susitna River 49 streambed 49 tributaries 49 Lake Tenkiller 49 ponds 49 retention ponds 49 intertie 49 hydro electric dams 49 Lake Lavon 49 Dunkard Creek 49 watercourse 49 Keystone Pipeline 49 stormwater discharge 49 tailwaters 49 sewage lagoon 49 wellfield 49 downstream 49 polluted groundwater 49 irrigation ditches 49 TMDLs 48 Menindee Lakes 48 Priest Rapids 48 fish hatchery 48 Reservoirs 48 sewage