1. National Water-Quality Assessment Program : nitrate and pesticides in ground water : Blaine, Cassia, Lincoln, and Minidoka counties, south-central Idaho Author/Creator: Rupert, Michael G. Publication/Creation: [Boise, ID?] : U.S. Dept. of the Interior, U.S. Geological Survey, [1996] Resource Type: Book Access & Availability: Loading
2. National Water-Quality Assessment Program--Cycle II : regional assessments of aquifers Author/Creator: Lapham, Wayne W. Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [2005] Resource Type: Book Access & Availability: Loading
3. Naturally occurring contaminants in the Piedmont and Blue Ridge cystalline-rock aquifers and Piedmont Early Mesozoic basin siliciclastic-rock aquifers, eastern United States, 1994-2008 Author/Creator: Chapman, M. J. (Melinda J.), author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2013 Resource Type: Book Access & Availability: Loading
4. Nitrate and ammonia in shallow ground water, Carson City urban area, Nevada, 1989 Author/Creator: Lawrence, Stephen J., author Publication/Creation: Carson City, Nevada : U.S. Department of the Interior, U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
5. 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
6. 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
7. Nitrate in ground water : using a model to simulate the probability of nitrate contamination of shallow ground water in the conterminous United States Author/Creator: Hitt, Kerie J. Publication/Creation: Reston, Va. : USGS National Water-Quality Assessment Program, 2005 Resource Type: Map Access & Availability: Loading
8. 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
9. Nitrate in the ground waters of the United States : assessing the risk Author/Creator: Nolan, Bernard T., 1954- Publication/Creation: [Reston, Va.] : U.S. Geological Survey, [1997?] Resource Type: Book Access & Availability: Loading
10. Nitrate loads and concentrations in surface-water base flow and shallow groundwater for selected basins in the United States, water years 1990-2006 Publication/Creation: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2010 Resource Type: Book Access & Availability: Loading