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Sustainability of ground-water resources

October 1, 1999

The pumpage of fresh ground water in the United States in 1995 was estimated to be approximately 77 billion gallons per day (Solley and others, 1998), which is about 8 percent of the estimated 1 trillion gallons per day of natural recharge to the Nation's ground-water systems (Nace, 1960). From an overall national perspective, the ground-water resource appears ample. Locally, however, the availability of ground water varies widely. Moreover, only a part of the ground water stored in the subsurface can be recovered by wells in an economic manner and without adverse consequences.

Publication Year 1999
Title Sustainability of ground-water resources
DOI 10.3133/cir1186
Authors William M. Alley, Thomas E. Reilly, O. Lehn Franke
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Circular
Series Number 1186
Index ID cir1186
Record Source USGS Publications Warehouse