USGS Washington Water Science Center
|U.S. Department of the Interior
U.S. Geological Survey
Release: October 20, 1997
Luis A. Fusté, Information Officer
New estimates of ground-water recharge from runoff at the Hanford Site in southwestern Washington have been calculated and presented in USGS Water Resources Investigations Report (WRIR) 97-4038. Recharge that results from runoff generated in nearby Cold Creek and Dry Creek basins was estimated using short-term data from Cold Creek and Dry Creek basins, in combination with long term-climate data and a numerical simulation of runoff and recharge.
The data collected during October 1990 through May 1993 were used to construct and test numerical models. The numerical models were then used to estimate long-term averages of runoff and recharge using 36 years of historical climate data. The estimate of recharge from runoff contributing water directly to the uppermost unconfined aquifer beneath the Hanford Site is 160 percent greater than the previous published recharge from runoff estimate.
A limited number of complimentary copies of WRIR 97-4038, "Estimates of recharge from runoff at the Hanford Site, Washington," by Richard S. Dinicola, are available from the U.S. Geological Survey, 1201 Pacific Avenue, Suite 600, Tacoma, WA 98402, telephone (253) 593-6510, or by e-mail at email@example.com. The report can also be purchased from the U.S. Geological Survey, Earth Science Information Center, Branch of Information Services, Box 25286, MS 504, Denver, CO 80225, telephone (303) 202-4200.