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Ground-water recharge in humid areas of the United States: A summary of Ground-Water Resources Program studies, 2003-2006

Fact Sheet 2007-3007

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Abstract

Increased demands on water resources by a growing population and recent droughts have raised awareness about the adequacy of ground-water resources in humid areas of the United States. The spatial and temporal variability of ground-water recharge are key factors that need to be quantified to determine the sustainability of ground-water resources. Ground-water recharge is defined herein as the entry into the saturated zone of water made available at the water-table surface, together with the associated flow away from the water table within the saturated zone (Freeze and Cherry, 1979). In response to the need for better estimates of ground-water recharge, the Ground-Water Resources Program (GWRP) of the U.S. Geological Survey (USGS) began an initiative in 2003 to estimate ground-water recharge rates in the relatively humid areas of the United States.

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Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Ground-water recharge in humid areas of the United States: A summary of Ground-Water Resources Program studies, 2003-2006
Series title:
Fact Sheet
Series number:
2007-3007
Year Published:
2007
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Groundwater Resources Program, Pennsylvania Water Science Center
Description:
4 p.
Time Range Start:
2003-01-01
Time Range End:
2006-12-31
Country:
United States