1. Analysis of data on nutrients and organic compounds in ground water in the upper Snake River Basin, Idaho and western Wyoming, 1980-91 Author/Creator: Rupert, Michael G., 1965- author Publication/Creation: Boise, Idaho : U.S. Geological Survey, 1994 Resource Type: Book Access & Availability: Loading
2. Occurrence of selected trace elements and organic compounds and their relation to land use in the Willamette River basin, Oregon, 1992-94 Author/Creator: Anderson, Chauncey W., author Publication/Creation: Portland, Oregon : U.S. Department of the Interior, U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
3. Seasonal and spatial variability of nutrients and pesticides in streams of the Willamette Basin, Oregon, 1993-95 Author/Creator: Rinella, Frank A., author Publication/Creation: Portland, Oregon : U.S. Department. of the Interior, U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
4. Selected trace-element and organic contaminants in the streambed sediments of the Potomac River basin, August 1992 Author/Creator: Gerhart, James M., author Publication/Creation: Towson, MD : United States Geological Survey, [1995] Resource Type: Book Access & Availability: Loading
5. Water-quality assessment of the Ozark Plateaus study unit, Arkansas, Kansas, Missouri, and Oklahoma : nutrients, bacteria, organic carbon, and suspended sediment in surface water, 1993-95 Author/Creator: Davis, Jerri V., author Publication/Creation: Little Rock, Arkansas : U.S. Department. of the Interior, U.S. Geological Survey, [1998] Resource Type: Book Access & Availability: Loading