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Groundwater
Groundwater Basics
What is groundwater?
Where is Earth's water?
Aquifers
Rivers contain groundwater
Sinkholes
Land subsidence
Drought and groundwater
Groundwater True/False Quiz
Human Interaction and Groundwater
Wells
Artesian wells
Groundwater depletion
Groundwater Quality
Groundwater quality
Pesticides in groundwater
Groundwater contaminants
Water well contamination
Use of Groundwater
Summary of groundwater use in the U.S.
Public-supply
Domestic
Irrigation
Industrial
Mining
Livestock
Aquaculture
Measuring Groundwater
How hydrologists find groundwater
Water dowsing
Groundwater and the Water Cycle
Groundwater storage
Groundwater discharge
Infiltration
Springs
USGS Groundwater Data
Real-time data
GroundWater Watch
Historical data
USGS Office of Groundwater