Related by context. Frequent words. (Click for all words.) 55 Hetch Hetchy 53 Tuolumne River 48 aqueduct 48 Mokelumne 48 groundwater basin 47 Shasta Dam 47 dams 46 dam 45 reservoirs 45 Elwha 45 watersheds 44 Friant Dam 44 aqueducts 44 tidal marsh 44 rivers 44 groundwater recharge 44 Canyon Dam 44 reservoir 44 groundwater pumping 43 riparian habitat 43 streambed 43 Reservoir 43 Reclamation 43 dam spillway 43 aquifer 43 underground aquifer 43 sediment runoff 43 Folsom Dam 42 valley 42 aquifers 42 streambeds 42 tidal wetlands 42 water 42 Yosemite Valley 42 Hoover Dam 42 groundwater 42 flume 42 CalFed 42 Water 42 Mokelumne River 42 EBMUD 42 Reservoirs 42 Eel River 42 upstream reservoirs 41 trout fishery 41 Dams 41 Friant 41 glacial lakes 41 Snake River 41 spawning habitat 41 Cosumnes River 40 Watersheds 40 earthen dams 40 diking 40 Animas River 40 San Joaquin 40 river basin 40 headwater 40 Riparian 40 Snowpack 40 mountain snowpack 40 Snake River dams 40 hydroelectric dams 39 Mount Tamalpais 39 Water Conservancy 39 irrigation 39 watercourse 39 Watershed 39 drainage basins 39 Elkhorn Slough 39 Salton Sea 39 headwaters 39 Elwha River 39 arroyos 39 underground aquifers 39 Marais des Cygnes 39 arroyo 39 coulee 39 Groundwater 39 streamflows 38 hydropower dams 38 river 38 Sierra Foothills 38 pumphouse 38 hillsides 38 detention basins 38 River 38 Truckee River 38 snowpack 38 Peaks 38 Klamath River 38 lakes 38 sandstone cliffs 38 weirs 38 levees 38 Delta smelt 38 Middle Fork 38 Klamath Basin 38 Mogollon Rim 38 salmon steelhead 38 Salinity