Related by context. Frequent words. (Click for all words.) 74 aquifer 73 underground aquifer 73 aquifers 72 groundwater 68 underground aquifers 67 reservoir 65 groundwater recharge 64 reservoirs 63 Aquifer 61 groundwater pumping 61 water 60 treated effluent 60 basin 59 Groundwater 58 headwaters 58 Ogallala Aquifer 58 watersheds 57 freshwater 55 wastewater 55 effluent 55 basins 55 sediment 55 Edwards Aquifer 55 brackish water 54 watercourse 54 saltwater intrusion 54 irrigated agriculture 53 soils 53 tributaries 53 contaminate groundwater 53 river basins 53 drainage basin 52 wetlands 52 lakebed 52 Creek tributary 52 river basin 52 sandy soils 52 streambeds 52 estuary 52 irrigate crops 51 wetland 51 outfall 51 dissolved solids 51 streambed 51 Treatment Plant 51 dredged material 51 catchments 51 Reservoir 51 tributary 51 catchment 51 desalinated water 51 potable 51 chloramine 51 geologic formations 51 hydrologic 51 sediments 51 sewage 50 dewatered 50 riparian habitat 50 aquatic habitat 50 salinity 50 potable water 50 contaminated groundwater 50 lakes 50 artesian 50 floodplain 50 sedimentation 50 brackish 50 total dissolved solids 50 EBMUD 49 polluted runoff 49 wetland habitat 49 Raw sewage 49 River basin 49 rivers 49 Sediment 49 leachate 49 Great Lakes basin 49 riparian 49 drainages 49 waterbodies 49 dissolved oxygen levels 49 wells 49 irrigation 49 mgd 49 submersible pumps 49 Reservoirs 49 contaminants 49 spawning habitat 48 hydrogeology 48 aquatic organisms 48 Friant Dam 48 wetland habitats 48 streamflows 48 untreated wastewater 48 ponds 48 irrigates 48 Tuolumne River 48 estuaries 48 hydrological 48 wastewater treatment