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(Click for frequent words.) 76 Ogallala aquifer 65 aquifer 62 underground aquifer 62 aquifers 60 alluvial aquifer 60 groundwater 58 groundwater aquifer 58 Edwards Aquifer 58 groundwater basin 58 shallow aquifer 57 Ozark Aquifer 56 shallow aquifers 56 irrigated farmland 56 Trinity Aquifer 55 Equus Beds 55 Carrizo Wilcox Aquifer 55 Aquifer 55 acquifer 55 Floridan aquifer 55 aquifer recharge 54 Floridan Aquifer 54 CRMWA 54 Ozark aquifer 54 groundwater pumping 54 underground aquifers 54 Glade Reservoir 54 Sparta Aquifer 54 Artesian wells 53 Groundwater 53 brackish groundwater 53 Marcellus shale formation 53 groundwater aquifers 52 groundwater withdrawals 52 Mahomet Aquifer 52 Biscayne Aquifer 51 Pueblo Reservoir 51 groundwater basins 51 Aquifers 51 reservoirs 51 river basins 51 McClusky Canal 51 Kiamichi River 51 bedrock aquifers 51 irrigated agriculture 51 Equus Beds aquifer 51 Barnett Shale formation 51 headwaters 50 groundwater pumpers 50 freshwater aquifer 50 reservoir 50 Fastrill 50 Fryingpan Arkansas Project 50 Chino aquifer 50 Snake Plain Aquifer 50 depleting aquifers 50 Lake Fastrill 50 Umatilla Basin 49 Great Artesian Basin 49 interbasin transfers 49 freshwater 49 Fry Ark 49 wellfields 49 Carrizo Wilcox 49 Elephant Butte Reservoir 49 playa lakes 49 Alluvial Aquifer 49 surficial aquifer 49 Bonny Reservoir 49 Otero Mesa 49 instream flows 49 irrigated cropland 49 River Basin 48 prairie pothole region 48 Plains Aquifer 48 freshwater aquifers 48 Bakken formation 48 Hueco Bolson 48 River basin 48 Westlands Water District 48 groundwater recharge 48 tailwater fishery 48 Woodford Shale 47 transmountain diversions 47 Lake Lavon 47 Klamath basin 47 Animas La Plata 47 overpumping 47 Hickory Aquifer 47 transmountain 47 overappropriated 47 San Juan Chama 47 Odessa aquifer 47 Upper Floridan Aquifer 47 manmade reservoirs 47 river drainages 47 SNWA 47 Bakken Formation 47 instream flow 46 bottomland forests 46 Water Conservancy 46 underground Ogallala aquifer 46 CNPPID 46 drainage basin 46 headwater chub 46 CRMWD 46 river basin 46 watersheds 46 saline aquifers 46 riparian habitat 46 CWCB 46 Upper Floridan aquifer 46 Snake River Plain Aquifer 46 mule deer herd 46 Elephant Butte Irrigation 46 irrigate farmland 45 Permian basin 45 shortgrass prairie 45 aquifer recharge zone 45 Ocklawaha River 45 NTMWD 45 Garrison Diversion 45 Spavinaw Creek 45 Irrigated agriculture 45 pipelines crisscrossing 45 Roan Plateau 45 Fastrill Reservoir 45 Garrison Diversion Conservancy 45 sage grouse populations 45 Sparta aquifer 45 Haynesville Shale formation 45 geologic formations 45 Lake Oologah 45 Lake McConaughy 45 Piceance 45 irrigators 45 coalbed methane 45 natural gas 45 Nebraska Sandhills 45 Raton Basin 45 threatened delta smelt 45 Vermillion Basin 45 Yellowtail Dam 45 Chicot Aquifer 45 Windy Gap Firming 45 Upper Klamath 45 Piceance basin 45 Carrizo Aquifer 45 Water Conservation 45 Colorado Piceance Basin 45 streamflows 45 synfuels plant 45 tallgrass prairies 44 IDWR 44 Powder River Basin 44 BuRec 44 Snake River Plain 44 Barnett shale 44 cropland 44 Bakken shale formation 44 Baxter Shale 44 Springs Edwards Aquifer 44 recharge basins 44 nitrate contamination 44 Contaminated groundwater 44 Barnett Shale 44 transmountain water 44 Kittitas Yakima 44 Teshekpuk Lake 44 Groundwater Basin 44 limestone aquifer 44 silvery minnow 44 reservior 44 freshwater habitats 44 Friant Kern Canal 44 Piceance Basin 44 Bakken shale 44 Uvalde Pool 44 wildlife habitat 44 Hetch Hetchy Reservoir 44 Valley Rathdrum Prairie 44 naturally occurring fluoride 44 CVWD 44 Wolfberry Trend 44 karst topography 44 depleting groundwater 44 sandstone aquifer 44 Marcellus Shale formation 44 shale extraction 44 Anticline 44 wellfield 44 thirsty Front Range 44 water 44 Valle Vidal 44 Iao aquifer 44 Coalbed methane 44 Panhandle Groundwater Conservation 44 artesian springs 44 Everglades ecosystem 44 Neuse River basin 44 populous Front Range 44 Estancia Basin 44 saline formations 43 upstream reservoirs 43 Lake Maumelle 43 Nesson Anticline 43 Everglades Agricultural 43 Flaming Gorge Reservoir 43 Fortification Creek 43 Chattanooga Shale 43 Arkoma basin 43 native tallgrass prairie 43 Appalachian Basin 43 prolific Barnett Shale 43 watertable 43 irrigate crops 43 Wolfberry trend 43 graze livestock 43 Rio Grande Conservancy 43 freshwater estuary 43 freshwater ecosystems 43 undammed river 43 irrigating crops 43 Bighorn River 43 coalbed methane wells 43 Tarim River 43 pronghorn migration 43 saline aquifer 43 streamflow 43 acquifers 43 Keystone XL 43 coalbed 43 Floridian Aquifer 43 Trans Pecos 43 Chuitna 43 Alliston Aquifer 43 Lake Sakakawea 43 Odessa Subarea 43 landlocked Caspian Sea 43 Haynesville shales 43 mountain snowmelt 43 Galeton Reservoir 43 Lahontan Reservoir 43 Chukchi Cap 43 TWDB 43 Arctic Coastal Plain 43 Keystone XL Pipeline 43 Cache la 43 recharge underground aquifers 43 Semitropic 43 nonrenewable resource 43 Caspian Sea basin 43 aquatic ecosystem 43 prairie potholes 43 basins 43 geological formations 43 subsurface aquifers 43 OWRB 43 irrigated acres 43 Fayetteville shale 43 ranchland 43 synthetic nitrogen fertilizer 43 Rainwater Basin 43 Albany Shale 43 Rocky Mountain Front 43 Haynesville Shale 43 Cook Inlet basin 43 Interbasin Compact Committee 43 groundwater depletion 43 Upper Klamath Basin 43 mountain snowpacks 43 wetland ecosystem 43 Niobrara Shale 43 Calleguas Municipal Water 43 TransCanada Keystone Pipeline 43 Colorado Roan Plateau 43 wetland habitat 43 headwater streams 43 Lake Okeechobee 43 Cheyenne Bottoms 42 shale deposits 42 irrigated crops 42 saltwater intrusion 42 Fisheating Creek 42 riverways 42 bottomland hardwoods 42 Apalachicola Chattahoochee Flint 42 Snake River Basin 42 lesser prairie chickens 42 Edwards Aquifer Authority 42 Powder River 42 irrigated acreage 42 wellwater 42 ferret reintroduction 42 hydrologic 42 Middle Fork 42 Fork Reservoir 42 Apalachicola River 42 arid regions 42 contaminate groundwater 42 irrigation 42 shale formations 42 Catskill Aqueduct 42 injection wells 42 Niobrara 42 Hinkson Creek 42 distiller grain 42 Jonah Pinedale 42 Floridian aquifer 42 fracking 42 Irrigation District 42 Prolonged droughts 42 Marcellus Shale 42 bedrock aquifer 42 hydraulic fracking 42 Sardis Lake 42 Appalachian basin 42 migratory bird habitat 42 Chuitna River 42 Drought Mitigation Center 42 Perchlorate contamination 42 Friant Dam 42 depleted aquifers 42 Menindee Lakes 42 Casper Aquifer 42 streamside habitat 42 undammed rivers 42 headwater 42 mountain snowpack 42 Tule Desert 42 riparian forest 42 pumpage 42 Wolfberry 42 Yarragadee aquifer 42 contaminate aquifers 42 irrigated lands 42 dryland corn 42 Hanford Reach 42 wells 42 Wattenberg Field 42 Ogallala 42 Chihuahuan Desert 42 Croton watershed 42 semiarid 42 pumpback 42 hydrologically connected 42 overpumped 42 Lake Balkhash 42 McElmo Dome 42 Great Lakes basin 42 Lake Tenkiller 42 Creek tributary 42 Poudre River 42 basin 42 quail habitat 42 arid grasslands 42 bottomland hardwood forest 42 NOS# 42 bottomland hardwood forests 42 Val Verde Basin 42 Water Resources 42 unfragmented forest 42 Bakken Shale formation 42 Marcellus shale 42 karst geology 42 mule deer herds 42 molting habitat 42 subglacial lakes 42 Platte River 42 waterfowl habitats 42 trout streams 42 Flaming Gorge 42 Basin Barnett Shale 42 aquifer depletion 42 Opal Hub 42 salt caverns 42 Snake River aquifer 42 tamarisk removal 42 shallower formations 42 hydrological cycle 42 Granite Wash formation 42 Sites Reservoir 42 Trinity Groundwater Conservation 42 Carlsbad Irrigation 41 naturally occurring arsenic 41 Trinchera Ranch 41 Portneuf River 41 bottomlands 41 Powder River basin 41 TRWD 41 Shoal Lakes 41 Watermaster 41 economically exploitable 41 Nacimiento Water 41 Pinedale Anticline 41 groundwater plume 41 endangered silvery minnow 41 streambanks 41 Chenier Plain 41 watermaster 41 riparian habitats 41 ranchers 41 Fayetteville Shale Play 41 farmland 41 undeveloped shoreline 41 Roadless areas 41 Mni Wiconi 41 proposed Glade Reservoir 41 Tehachapis 41 Gangotri glacier 41 mega dairies 41 Peconic Estuary 41 Denver Julesburg DJ 41 artesian wells 41 Lake Catoma 41 American Farmland Trust 41 Treated wastewater 41 Gavins Point Dam 41 threatened coho salmon 41 feedgrounds 41 LCRA 41 Bessemer Ditch 41 dunes sagebrush lizard 41 earthen canal 41 Mokelumne River 41 DR GR 41 Swiftmud 41 recharge groundwater 41 NRDs 41 hydrological drought 41 dryland crops 41 Altamont Bluebell 41 Bighorn Basin 41 wetlands 41 Niobrara shale formation 41 Kanopolis 41 irrigated 41 desert tortoise habitat 41 Tularosa Basin 41 unroaded 41 Woodford shale 41 Tuolumne River 41 undeveloped leasehold 41 Buffalo Wallow 41 Groundwater Conservation District 41 Swistock 41 Uinta basin 41 Wanaque Reservoir 41 contiguous tracts 41 aquatic habitat 41 Fossil Creek 41 Conata Basin 41 Arkoma Basin 41 Danjiangkou Reservoir 41 hydraulic fracturing fluids 41 Artesia Vacuum Trend 41 Klamath Irrigation 41 subsoil moisture 41 Piceance Basins 41 frac sand 41 Trans Pecos region 41 nonproducing 41 total dissolved solids 41 Yellowstone cutthroat trout 41 roadless lands 41 Shale formations 41 roadless forests 41 Central Flyway 41 adult pupfish 41 SunZia 41 Central Platte NRD 41 lignite coal 41 brook trout populations 41 Edwards Aquifer recharge 41 salinity intrusion 41 prairie chicken 41 Great Lakes Compact 41 Teshekpuk 41 Rio Grande silvery minnow 41 Reclamation 41 hydrologic cycle 41 naturally occurring radium 41 Pepacton 41 Sedimentation 41 coastal estuaries 41 Storing carbon dioxide 41 freshwater tidal marsh 41 Williston Basin 40 snowpack 40 Loch Lomond Reservoir 40 blufflands 40 Mesaverde Formation 40 Vallecito Reservoir 40 geologic formation 40 coastal wetlands 40 Niobrara shale 40 TransCanada Keystone pipeline 40 Quantification Settlement Agreement 40 fracking fluids 40 black capped vireo 40 Bakken acreage 40 Lake Adger 40 undeveloped acreage 40 migratory bird flyway 40 Stormwater runoff 40 maf 40 Scituate Reservoir 40 salt domes 40 Keystone Pipeline 40 Peripheral Canal 40 Mamm Creek 40 Haynesville acreage 40 Marcellus Haynesville 40 ADWR 40 Marcellus acreage 40 waterfowl habitat 40 Syr Darya 40 Pardee Reservoir 40 Bcfd 40 cattail marshes 40 sagebrush habitat 40 Soil moisture 40 percolation ponds 40 elk herd 40 Klamath Basin 40 AWEP 40 Niobrara formation 40 hydraulic fracturing 40 groundwaters 40 River Basins 40 megafarms 40 Rancho Guejito 40 Lake Eucha 40 Overthrust 40 Calleguas 40 Arctic Refuge 40 Groundwater Protection 40 Lake Koocanusa 40 Deltic Timber 40 LNVA 40 Utica Shale formation 40 trout stream 40 Bayou Meto 40 undeveloped tracts 40 Saltwater intrusion 40 Grouse Creek 40 instream 40 tritium contaminated 40 dryland crop 40 Jolly Ranch 40 pheasant populations 40 panther habitat 40 Geoffrey Thyne 40 cattle feedlots 40 seafloor sediments 40 Barnett Shale wells 40 shorebird habitat 40 endangered suckers 40 buffalo roamed 40 CO2 sequestration 40 stationary frontal boundary 40 SWFWMD 40 bottomland 40 downthrown side 40 Mississippi Flyway 40 Fayetteville Shale 40 Blacklick Creek 40 rangeland grasses 40 soil moisture 40 drought stricken 40 wetland ecosystems 40 tallgrass prairie 40 Rosendale Dairy 40 seawater intrusion 40 Athabasca tar sands 40 pheasant habitat 40 upper riparian 40 Cohansey aquifer 40 Bon Homme Yankton 40 Soy biodiesel 40 finite resource 40 diversion weir 40 Pathfinder Reservoir 40 coulees 40 farmable 40 bison herd 40 Prickly Pear Creek 40 Yarragadee 40 Denver Julesburg 40 Seminoe Reservoir 40 MTBE contamination 40 fracturing fluids 40 Driftless Area 40 migratory bird populations 40 Athabasca River 40 Fayetteville shales 40 Gunnison Basin 40 streamflow forecasts 40 hydrological 40 Irrigation Ditch 40 Mason Tract 40 freshwater mussels 40 saltwater disposal 40 Big Thicket 40 Haynesville Bossier 40 midcontinent 40 evapotranspiration 40 Friant Water Users 40 layered sedimentary rock 40 underground caverns 40 Snake River Aquifer 40 lakes 40 Permanent Mineral 40 hellbender 40 wintering habitat 40 Lahontan cutthroat 40 Cienega Creek 40 groundwater extraction 40 Pelahatchie Field 40 river valleys 40 Truckee Meadows Water 40 Tallapoosa rivers 40 drillsites 40 spring snowmelt runoff 40 Elm Coulee 40 Camisea 40 Deep Bossier 40 Dolomite formation 40 Mokelumne River watershed 40 Cushing Oklahoma 40 Conaway Ranch 40 Blackleaf 40 Colorado pikeminnow 40 underground geological formations 40 Fryingpan Arkansas 40 Los Vaqueros Reservoir 40 NGL pipeline 40 Olivenhain Reservoir 39 Creek Watershed 39 Snowpack 39 Uinta Basin 39 riparian forests 39 Mattole 39 mgd 39 Na Wai Eha 39 Utica shales 39 Reservoirs 39 Spearville Kan. 39 Muscatatuck River 39 overgrazed 39 Glades Reservoir 39 Delta smelt 39 highly erodable 39 Purgatoire River 39 Prairie Pothole 39 irrigated cotton 39 endangered Delta smelt 39 Hine emerald dragonfly 39 wetland 39 corn acreage 39 cattle feedlot 39 Neuse River Basin 39 ANWR 39 atrazine herbicide 39 Galisteo Basin 39 delta smelt 39 Eightmile 39 acequias 39 acreage 39 sediment buildup 39 shale gas 39 Cheesman Reservoir 39 arid lands 39 Glendo Reservoir 39 stormwater basins 39 oxbows 39 woodpecker habitat 39 Caspian Basin 39 semi arid 39 Hinckley Reservoir 39 grasslands 39 Simpson Aquifer 39 fallowed 39 Denver Julesburg Basin 39 bed methane 39 Seawater desalination 39 booming Bakken Shale 39 Waterflood 39 pronghorn 39 Eightmile River 39 MMWD 39 Woodbridge Irrigation 39 Three Forks Sanish 39 Switchgrass 39 Capline pipeline 39 Abundant rainfall 39 irrigable 39 Indus basin 39 tributary reservoirs 39 navigable rivers 39 mule deer populations 39 intermittent streams 39 Tuolumne Utilities 39 forested watersheds 39 TransCanada Keystone 39 ecologically fragile 39 endangered mussels 39 Trinity Uptown 39 interbasin transfer 39 Cattle ranchers 39 tarry crude 39 Buqo 39 Elephant Butte 39 sage grouse habitat 39 salt cavern 39 Basin 39 Pecos River 39 Palo Duro Basin 39 Bayou Bartholomew 39 Jindabyne Dam 39 Marcellus shales 39 Bayou Dorcheat 39 recharges groundwater 39 pollute groundwater downstream 39 riparian 39 Veeranam lake 39 cattle raisers 39 amphibian habitat 39 Hetch Hetchy 39 transboundary Flathead 39 undeveloped land 39 sedimentary deposits 39 Delta Smelt 39 Murray Darling 39 Kittitas Reclamation District 39 Gunnison sage grouse 39 underground geologic formations 39 arable land 39 marginal cropland 39 Salton Sea 39 Hulah Lake 39 freshwater wetland 39 Kodiak leasehold 39 Friant Water Authority 39 horizontal Mississippian 39 karst 39 Woodford Shale Play 39 ecoregion 39 NREPA 39 Banklick Creek 39 pasturelands 39 Athabasca watershed 39 Reservoir 39 Marcellus Shale geologic 39 Ellenburger 39 semiarid regions 39 Irrigation 39 Coal Bed Methane 39 Carbon sequestration 39 rivers 39 Birdbear 39 Klamath irrigators 39 Derek Sandison 39 rangeland 39 MRGCD 39 migrating salmon 39 Baldhill Dam 39 feedlot 39 blackland prairie 39 Intertie 39 native brook trout 39 Fayetteville Shale formation 39 Austin Chalk 39 evaporation ponds 39 grazing pastures 39 Almatti reservoir 39 Transco pipeline 39 Cherokee Basin 39 Environmental Quality Incentives 39 Inland Feeder 39 hydro electric dams 39 rangelands 39 resevoir 39 irrigated farmlands 39 greater sage grouse 39 hydraulic fracing 39 rainfed agriculture 39 Albeni Falls Dam 39 coulee 39 highly erodible 39 Tallgrass Prairie Preserve 39 Catawba Wateree River 39 arable farmland 39 Navajo Aquifer 39 Lone Star Groundwater Conservation 39 spawning habitat 39 recharging groundwater 39 Tocks Island 39 landowners 39 rich Bakken shale 39 Soda Butte Creek 39 Lake Iliamna 39 Superstition Vistas 39 Monument Butte 39 groundwater replenishment 39 Acqua Smeraldina 39 biota 39 Killbuck Creek 39 unnamed tributary 39 Meander Dam 39 Truckee Canal 39 Washita River 39 Schoharie Reservoir 39 Bcf 39 Cana Shale 39 Gnangara Mound 39 Moark 39 treated effluent 39 nonpotable 39 limestone bedrock 38 Marcellus Shale acreage 38 tailwater 38 tributary rivers 38 Destin Dome 38 watercourse 38 Fracking 38 Sheep Creek 38 Ground Water Appropriators 38 Likwartz 38 Allenergy 38 freshwater marshes 38 Panhandle Granite Wash 38 Granby Reservoir 38 alluvial plain 38 inholdings 38 Matthew Rodell 38 Garrison Dam 38 endangered delta smelt 38 Palisades Reservoir 38 Colony Granite Wash 38 trafficway 38 Caney Shale 38 mightiest rivers 38 Hetch Hetchy Valley 38 Bella Vista bypass 38 Rocky Mountains 38 nutrient runoff 38 Goodnight JA 38 lush farmlands 38 habitat 38 XTO Energy 38 Yadkin Pee Dee 38 fracing fluids 38 Pat Mayse 38 bighorn habitat 38 Mountain Aquifer 38 interconnecting pipelines 38 contaminates groundwater 38 Llano Estacado 38 pecan crop 38 intrastate pipeline 38 resacas 38 coal seam gas 38 Hirakud reservoir 38 Ranchester Wyo. 38 Gavins Point 38 silage leachate 38 Transcontinental Gas 38 Book Cliffs 38 Lake Maumelle watershed 38 hydrogeologic 38 MtBE 38 freshwater marsh 38 bison herds 38 Buford Dam 38 Condamine Balonne 38 contaminated Yokley 38 hydro fracking 38 Longmen Shan fault 38 groundwater contamination 38 wastewater 38 Bearwallow Mountain 38 aqueduct 38 Cowskin Creek 38 Notown Reservoir 38 deplete aquifers 38 grassland habitat 38 deep saline aquifers 38 CBM wells 38 matrix porosity 38 Lower Rio Grande 38 overthrust belt 38 Lynn Tominaga 38 Irrawaddy dolphin 38 VVWD 38 Paradox Basin 38 threatened Delta smelt 38 Fuyuan waterway 38 flowage 38 coalbed gas 38 caribou herds 38 Barail 38 developable acreage 38 transbasin 38 gasfields 38 Mississippian formation 38 Caspian basin 38 Cannery Loop 38 Clitherall Lake 38 porous sandstone 38 Cana Woodford Shale 38 Drip irrigation 38 Haynesville Shale acreage 38 nitrate nitrogen 38 Natural Gas 38 fertile farmland 38 Lake Vostok 38 Moapa dace 38 Conemaugh River 38 Mogollon Rim 38 Watershed Protection 38 prairie grasslands 38 Maurepas Swamp 38 Wildlands Project 38 Atchafalaya Basin 38 karst terrain 38 Allatoona Lake 38 Modoc Plateau 38 DRGR 38 Arsenic contamination 38 contaminating groundwater 38 Wasatch Plateau 38 Nissitissit River 38 Nemaha Ridge 38 Tehri Dam 38 coalbed methane CBM 38 milk vetch 38 drouth 38 hydro fracturing 38 Petrosearch 38 Angat dam 38 chlorine residuals 38 biologically diverse 38 Cahaba River 38 Billion Cubic Feet 38 wetland restoration 38 BDCP 38 Plum Creek Watershed 38 prairie pothole 38 shrub steppe habitat 38 feedlots 38 Amargosa River 38 Imperial Irrigation District 38 brown trout fishery 38 Emiquon 38 Mancos Shale 38 horizontal Haynesville shale 38 Navajo Reservoir 38 tmc 38 distiller grains 38 irrigated alfalfa 38 Gas Transmission pipeline 38 mighty Yangtze river 38 reintroducing wolves 38 contaminated groundwater 38 forested wetlands 38 ancient lakebed 38 Haynesville 38 prairie chickens 38 Gualala River 38 atrazine concentrations 38 Arbuckle Pipeline 38 Uncompahgre River 38 Conservation Easement 38 Oahe Reservoir 38 ponderosa pine forests 38 hypoxic zone 38 subsurface minerals 38 peripheral canal 38 Frio Sand 38 tributary 38 Canyon Sandstone 38 headwater stream 38 Ganga basin 38 bottomland hardwood 38 Macquarie Marshes 38 Yampa River 38 tarplant 38 spawning tributary 38 pallid sturgeon 38 gas driller 38 hydrofracturing 38 GBRA 38 hydrology 38 Panoche Valley 38 SemCrude 38 Porcupine caribou herd 38 Nitrogen fertilizer 38 peanut acreage 38 Marmaton