Influence of land use and open-water wetlands on water quality in the Lake Wallenpaupack basin, northeastern Pennsylvania

The potential for saltwater intrusion in the Potomac aquifers of the York-James Peninsula, Virginia

Water-quality assessment of the Frank Lyon, Jr., nursery pond releases into Lake Maumelle, Arkansas, 1991-1996

A precipitation-runoff model for part of the Ninemile Creek Watershed near Camillus, Onondaga County, New York

Hydrogeology and subsurface nitrate in the Upper Big Blue Natural Resources District, central Nebraska, July 1995 through September 1997

Evaluation of surface-water/ground-water interactions in the Santa Clara River Valley, Ventura County, California

Magmatic carbon dioxide emissions at Mammoth Mountain, California

Potentiometric levels and water quality in the aquifers underlying Belvidere, Illinois, 1993-96

Pesticides in streams of the United States : initial results from the National Water-Quality Assessment Program

Watershed trend analysis and water-quality assessment using bottom-sediment cores from Cheney Reservoir, south-central Kansas

Water-quality and biological community characterization at selected sites on the Eagle River, Colorado, September 1997 and February 1998

Delineation of contributing areas to selected public-supply wells, western Cape Cod, Massachusetts

River-operations model for upper Carson River Basin, California and Nevada

Factors related to the joint probability of flooding on paired streams

Guidelines for quality assurance and quality control of fish taxonomic data collected as part of the National Water-Quality Assessment Program