Nitrogen concentrations and deposition in rainfall at two sites in the Coastal Bend area, South Texas, 1996-98

Radon in ground water in Guilford County, North Carolina

Bottom sediments of Lorence Creek Lake, San Antonio, Texas, reflect contaminant trends in an urbanizing watershed

Arsenic, nitrate, and chloride in groundwater, Lyon Township, Oakland County, Michigan

National Water-Quality Assessment Program; Northern Rockies Intermontane Basins

Water-quality assessment of the Trinity River Basin, Texas; pesticides in a suburban watershed, Arlington, 1993-94

Forces Shaping Future U.S. Coal Production and Use

Water-quality assessment in the Trinity River Basin, Texas; pesticide occurrence in streams, winter and spring 1994

Trout Lake, Wisconsin: A Water, Energy, and Biogeochemical Budgets Program Site

Panola Mountain, Georgia: A Water, Energy, and Biogeochemical Budgets Program Site

Radioactive Elements in Coal and Fly Ash: Abundance, Forms, and Environmental Significance

Mercury studies in the Florida Everglades

Vertical exchange of ground water and surface water in the Florida Everglades

National Water-Quality Assessment Program; data collection in the Red River of the North Basin, Minnesota, North Dakota, and South Dakota, 1992-95

Predicting the Long-Term Fate of Sediments and Contaminants in Massachusetts Bay