Hydraulic-property estimates for use with a transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California [electronic resource] / by Wayne R. Belcher, Peggy E. Elliott, and Arthur L. Geldon ; prepared in cooperation with the Office of Environmental Restoration and Waste Management, U.S. Department of Energy, National Nuclear Security Administration, Nevada Operations Office, under Interagency Agreement DE-AI08-96NV11967