1. A national survey of methyl tert-butyl ether and other volatile organic compounds in drinking-water sources : results of the randon [i.e. random] survey Author/Creator: Grady, Stephen J. Publication/Creation: East Hartford, CT : U.S. Dept. of the Interior, U.S. Geological Survey, 2003 Resource Type: Book Access & Availability: Loading
2. 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
3. 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
4. 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
5. 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
6. Natural attenuation of chlorinated volatile organic compounds in a freshwater tidal wetland, Aberdeen Proving Ground, Maryland Author/Creator: Lorah, Michelle M., author Publication/Creation: Baltimore, Maryland : U.S. Geological Survey, 1997 Resource Type: Book Access & Availability: Loading
7. Natural attenuation of chlorinated volatile organic compounds in ground water at Operable Unit 1, Naval Undersea Warfare Center, Division Keyport, Washington Publication/Creation: Tacoma, Wash. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
8. Natural flow and water consumption in the Milk River basin, Montana and Alberta, Canada Author/Creator: Thompson, R. E. (Ronald E.), author Publication/Creation: [Helena, Mont.] : U.S. Geological Survey, [1986?] Resource Type: Book Access & Availability: Loading
9. Natural radioactivity in, and inorganic chemistry of, ground water in the Kirkwood-Cohansey aquifer system, southern New Jersey, 1983-89 Author/Creator: Kozinski, Jane, author Publication/Creation: West Trenton, New Jersey : U.S. Geological Survey, 1995 Resource Type: Book Access & Availability: Loading
10. Near-real-time simulation and internet-based delivery of forecast-flood inundation maps using two-dimensional hydraulic modeling : a pilot study of the Snoqualmie River, Washington Author/Creator: Jones, Joseph L., 1958- Publication/Creation: Tacoma, Wash. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
11. A new cation-exchange method for accurate field speciation of hexavalent chromium Author/Creator: Ball, J. W. Publication/Creation: Boulder, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2003 Resource Type: Book Access & Availability: Loading
12. 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
13. Nitrate and pesticides in ground water of the eastern San Joaquin Valley, California : occurrence and trends Author/Creator: Burow, Karen R., author Publication/Creation: Sacramento, California : U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
14. Nitrate and pesticides in surficial aquifers and trophic state and phosphorus sources for selected lakes, eastern Otter Tail County, west-central Minnesota, 1993-96 Author/Creator: Ruhl, J. F., author Publication/Creation: Mounds View, Minnesota : U.S. Geological Survey, 1997 Resource Type: Book Access & Availability: Loading
15. Nitrate and selected pesticides in ground water of the Mid-Atlantic region Author/Creator: Ator, Scott W., author Publication/Creation: Baltimore, Maryland : United States Geological Survey, 1997 Resource Type: Book Access & Availability: Loading
16. Nitrate concentrations, 1936-99, and pesticide concentrations, 1990-99, in the unconfined aquifer in the San Luis Valley, Colorado Author/Creator: Stogner, Robert W., author Publication/Creation: Albuquerque, New Mexico : U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
17. 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
18. Nitrate in ground water and spring water near four dairy farms in North Florida, 1990-93 Author/Creator: Andrews, William J., 1962- author Publication/Creation: Tallahassee, Florida : U.S. Geological Survey, 1994 Resource Type: Book Access & Availability: Loading
19. Nitrate in ground water and stream base flow in the Lower Susquehanna River Basin, Pennsylvania and Maryland Author/Creator: Lindsey, Bruce D., 1962- author Publication/Creation: Lemoyne, Pennsylvania : U.S. Department of the Interior, U.S. Geological Survey, 1997 Resource Type: Book Access & Availability: Loading
20. 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