Isotopic and chemical composition of inorganic and organic water-quality samples from the Mississippi River basin, 1997-98

Hydrologic and salinity characteristics of Currituck Sound and selected tributaries in North Carolina and Virginia, 1998-99

Estimating monthly and annual streamflow statistics at ungaged sites in Idaho

Estimated flow-duration curves for selected ungaged sites in Kansas

Flood potential of South Prairie Creek, Pierce County, Washington

Assessment of soil, surface-water, and ground-water contamination at selected sites at J-field, Aberdeen Proving Ground, Maryland

Geohydrology and water quality of the North Platte River alluvial aquifer, Garden County, western Nebraska, 1993-94

Mercury concentrations in estuarine sediments, Lavaca and Matagorda bays, Texas, 1992

Spatial variation in saturated hydraulic conductivity of sediments at a crude-oil spill site near Bemidji, Minnesota

Results from air-injection and tracer testing in the upper Tiva Canyon, Bow Ridge Fault, and upper Paintbrush contact alcoves of the Exploratory Studies Facility, August 1994 through July 1996, Yucca Mountain, Nevada

Techniques for estimating peak-flow magnitude and frequency relations for South Dakota streams

Simulation of freshwater-saltwater interfaces in the Brooklyn-Queens aquifer system, Long Island, New York

Water-surface profile and flood boundaries for the computed 100-year flood, Tongue River, northern Cheyenne Indian Reservation and adjacent area, Montana

Strontium distribution coefficients of surficial and sedimentary interbed samples from the Idaho National Engineering and Environmental Laboratory, Idaho

Evaluation of hydrologic data collected at the North Penn Area 12 Superfund Site, Montgomery County, Pennsylvania