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

Fact Sheet ◽  
2007 ◽  
Author(s):  
Geoffrey N. Delin ◽  
Dennis W. Risser
Fact Sheet ◽  
2000 ◽  
Author(s):  
Alan H. Welch ◽  
Sharon A. Watkins ◽  
Dennis R. Helsel ◽  
Michael J. Focazio

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