1. National water quality assessment of the Georgia-Florida Coastal Plain Study Unit : water withdrawals and treated wastewater discharges, 1990 Author/Creator: Marella, Richard L., author Publication/Creation: Tallahassee, Florida : U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
2. National Water-Quality Assessment of the Lake Erie-Lake St. Clair Basin, Michigan, Indiana, Ohio, Pennsylvania, and New York : environmental and hydrologic setting Author/Creator: Casey, George D., author Publication/Creation: Columbus, Ohio : U.S. Department of the Interior, U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
3. Natural and human factors affecting shallow water quality in surficial aquifers in the Connecticut, Housatonic, and Thames River basins Author/Creator: Grady, Stephen J., author Publication/Creation: Marlborough, Massachusetts : U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
4. Nitrate and other water-quality characteristics, and nitrogen in the unsaturated zone, in the Red Willow and Hitchcock counties special protection area, southwest Nebraska, 1993-95 Author/Creator: Steele, G. V., author Publication/Creation: Lincoln, Nebraska : U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
5. Nitrate in the Columbia aquifer, central Delmarva Peninsula, Maryland Author/Creator: Bachman, L. Joseph, author Publication/Creation: Towson, Maryland : U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading
6. Nonpoint-source discharges and water quality of the Elk Creek Basin, west-central Wisconsin Author/Creator: Field, Stephen J. 1935- (Stephen John), author Publication/Creation: [Reston, Virginia] : U.S. Geological Survey, 1985 Resource Type: Book Access & Availability: Loading
7. Numerical simulation of the alluvium and terrace aquifer along the north Canadian River from Canton Lake to Lake Overholser, central Oklahoma Author/Creator: Christenson, Scott C., author Publication/Creation: Oklahoma City, Oklahoma : U.S. Geological Survey, 1983 Resource Type: Book Access & Availability: Loading
8. Nutrient and chlorophyll relations in selected streams of the New England Coastal Basins in Massachusetts and New Hampshire, June-September 2001 Publication/Creation: Denver, CO : U.S. Geological Survey, Information Services [distributor]. Resource Type: Book Access & Availability: Loading
9. Nutrient and suspended solids loads, yields, and trends in the non-tidal part of five major river basins in Virginia, 1985-96 Author/Creator: Johnson, Henry M., author Publication/Creation: Richmond, Virginia : U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
10. Nutrient and suspended-sediment concentrations, trends, loads, and yields from the nontidal part of the Susquehanna, Potomac, Patuxent, and Choptank rivers, 1985-96 Author/Creator: Darrell, Linda C., author Publication/Creation: Baltimore, Maryland : U.S. Dept. of the Interior, U.S. Geological Survey, 1999 Resource Type: Book Access & Availability: Loading
11. Nutrient loading and selected water-quality and biological characteristics of Dickinson Bayou near Houston, Texas, 1995-97 Author/Creator: East, Jeffery W., author Publication/Creation: Austin, Texas : U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
12. Nutrient loading to Lewisville Lake, north-central Texas, 1984-87 Author/Creator: Gain, W. Scott, author Publication/Creation: Austin, Texas : U.S. Geological Survey, 1995 Resource Type: Book Access & Availability: Loading
13. Nutrient sources and analysis of nutrient water-quality data, Apalachicola-Chattahoochee-Flint River basin, Georgia, Alabama, and Florida, 1972-90 Author/Creator: Frick, Elizabeth A. Publication/Creation: Atlanta, Ga. : U.S. Dept. of the Interior, U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
14. Nutrient sources and analysis of nutrient water-quality data, Apalachicola-Chattahoochee-Flint River basin, Georgia, Alabama, and Florida, 1972-90 Author/Creator: Frick, Elizabeth A., author Publication/Creation: Atlanta, Georgia : U.S. Department of the Interior, U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
15. Nutrient, trace-element, and ecological history of Musky Bay, Lac Courte Oreilles, Wisconsin, as inferred from sediment cores Publication/Creation: Denver, CO : U.S. Geological Survey, Branch of Information Services [distributor]. Resource Type: Book Access & Availability: Loading
16. Nutrients and suspended solids in surface waters of the upper Illinois River basin in Illinois, Indiana, and Wisconsin, 1978-97 Author/Creator: Sullivan, D. J. (Daniel J.) Publication/Creation: Middleton, Wis. : U.S. Dept. of the Interior, U.S. Geological Survey, 2000 Resource Type: Book Access & Availability: Loading
17. Nutrients, benthic algae, and stream quality during low streamflow in the Palouse River basin, Washington and Idaho Author/Creator: Greene, Karen E., author Publication/Creation: Tacoma, Washington : U.S. Geological Survey, 1997 Resource Type: Book Access & Availability: Loading