Subject
Groundwater
Water table
Aquifers
109
Water-supply
25
High Plains Aquifer
15
Groundwater flow
14
Water quality
14
Hydrogeology
12
Floridan Aquifer
10
Water levels
10
Hydrology
7
Water withdrawals Environmental aspects
6
Albuquerque Basin (N.M.)
5
Santa Fe Group
4
Stream measurements
4
Water withdrawals
4
Wells
4
Hydraulic measurements
3
Water consumption
3
Albuquerque Metropolitan Area (N.M.)
2
Aquia Formation
2
Columbia Plateau
2
Geographic information systems
2
Groundwater Mathematical models
2
Groundwater recharge
2
Monitoring wells
2
Nitrates Environmental aspects
2
Patapsco Aquifer
2
Piezometer
2
Saltwater encroachment
2
Sparta Aquifer (Ark. and La.)
2
Tutuila Island (American Samoa)
2
Water chemistry
2
Water resources development Environmental aspects
2
Albuquerque (N.M.)
1
Alluvial plains
1
Aquifer storage recovery
1
Basins (Geology)
1
Baton Rouge Region (La.)
1
Bernalillo County (N.M.)
1
Black Creek Aquifer (S.C. and N.C.)
1
Borings
1
Central Oklahoma Aquifer (Okla.)
1
Chena River (Alaska)
1
Coal mines and mining Environmental aspects
1
Coal mines and mining Water-supply Environmental aspects
1
Coastal plains
1
Denver Basin
1
Drainage
1
Droughts
1
more ...