1. Vertical gradients in water chemistry in the central High Plains aquifer, southwestern Kansas and Oklahoma panhandle, 1999 Author/Creator: McMahon, Peter B., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
2. Vertical profiles of streambed hydraulic conductivity determined using slug tests in central and western Nebraska Publication/Creation: Lincoln, Neb. : U.S. Dept. of the Interior, U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
3. Vertical profiles of streambed hydraulic conductivity determined using slug tests in central and western Nebraska Author/Creator: Rus, David L., author Publication/Creation: Lincoln, Nebraska : U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
4. Vulnerability of ground water to contamination, Edwards aquifer recharge zone, Bexar County, Texas, 1998 Author/Creator: Clark, Allan K., author Publication/Creation: Austin, Texas : U.S. Deptartment of the Interior, U.S. Geological Survey, 2000 Resource Type: Book Access & Availability: Loading