21. 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
22. Nutrient sources and loads in the Connecticut, Housatonic, and Thames River basins Author/Creator: Trench, Elaine C. Todd, author Publication/Creation: Northborough, Massachusetts : U.S. Deptartment of the Interior, U.S. Geological Survey, 2000 Resource Type: Book Access & Availability: Loading
23. Nutrients and suspended sediment in snowmelt runoff from part of the upper Mississippi River basin, Minnesota and Wisconsin, 1997 Author/Creator: Fallon, James D. Publication/Creation: Mounds View, Minn. : U.S. Dept. of the Interior, U.S. Geological Survey, 2000 Resource Type: Book Access & Availability: Loading
24. Nitrate source indicators in ground water of the Scimitar Subdivision, Peters Creek area, Anchorage, Alaska Author/Creator: Wang, Bronwen Publication/Creation: Denver, CO : U.S. Geological Survey, Branch of Information Services [distributor]. Resource Type: Book Access & Availability: Loading
25. Nitrate, volatile organic compounds, and pesticides in ground water--a summary of selected studies from New Jersey and Long Island, New York Publication/Creation: West Trenton, N.J. : U.S. Dept. of the Interior, U.S. Geological Survey, 1999 Resource Type: Book Access & Availability: Loading
26. 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
27. 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
28. Natural attenuation assessment of contaminated ground water at a gas-turbine manufacturing plant, Greenville, South Carolina Author/Creator: Vroblesky, Don A., author Publication/Creation: Columbia, South Carolina : U.S. Dept. of the Interior, U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
29. Nitrate concentrations in ground water in the paleovalley alluvial aquifers of the Nemaha Natural Resources District, Nebraska, 1989 and 1994-96 Author/Creator: Chen, Abraham H., author Publication/Creation: Lincoln, Nebraska : U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
30. 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