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Institution
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355
Water quality
223
Groundwater
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Stream measurements
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173
Aquifers
166
Groundwater flow
159
Groundwater Quality
159
Water Pollution
122
Floods
113
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107
Hydrology
83
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69
Nutrient pollution of water
59
Water table
58
Water quality management
56
Groundwater flow Computer simulation
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Groundwater recharge
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Water quality Measurement
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Groundwater flow Mathematical models
49
Suspended sediments
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Sediment transport
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Flood forecasting
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Author
1,758
Geological Survey (U.S.),
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Geological Survey (U.S.)
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United States. Department of Energy
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California. State Water Resources Control Board
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Washington (State). Department of Ecology
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New Jersey. Department of Environmental Protection
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Arkansas Natural Resources Commission
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Groundwater Resources Program (U.S.)
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Ground Water Ambient Monitoring and Assessment Program (Calif.)
18
Massachusetts. Department of Environmental Protection
16
Wisconsin. Department of Natural Resources
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Colorado Water Conservation Board
15
Southwest Florida Water Management District (Fla.)
15
Water Availability and Use Science Program (U.S.)
14
Missouri. Department of Transportation
14
United States. Army. Corps of Engineers,
13
Arizona. Department of Water Resources
13
Huizinga, Richard J.,
13
Oklahoma Water Resources Board
13
Sando, Steven Kent, 1956-
12
Galloway, Joel M.,
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Language
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Maps
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Databases
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Guidebooks
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Geological maps
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Graphs
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Handbooks and manuals
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Relief models
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Remote-sensing maps
1
Annual reports
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Atlases
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Case studies
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