31. Estimates of inorganic nitrogen wet deposition form precipitation for the conterminous United States, 1955-84 Author/Creator: Gronberg, JoAnn M., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2014 Resource Type: Book Access & Availability: Loading
32. Water quality in the upper Floridan aquifer and overlying surficial aquifers, Southeastern United States, 1993-2010 Author/Creator: Berndt, Marian P., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2014 Resource Type: Book Access & Availability: Loading
33. Pesticide trends in major rivers of the United States, 1992-2010 Author/Creator: Ryberg, Karen R., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2014 Resource Type: Book Access & Availability: Loading
34. Water quality in basin-fill aquifers of the southwestern United States : Arizona, California, Colorado, Nevada, New Mexico, and Utah, 1993-2009 Author/Creator: Thiros, Susan A., author Publication/Creation: Reston, Virginia : U.S. Department of Interior, U.S. Geological Survey, 2014 Resource Type: Book Access & Availability: Loading
35. Design and testing of a process-based groundwater vulnerabilty assessment (P-GWAVA) system for predicting concentrations of agrichemicals in groundwater across the United States Author/Creator: Barbash, Jack E., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2014 Resource Type: Book Access & Availability: Loading
36. An overview comparing results from two decades of monitoring for pesticides in the nation's streams and rivers, 1992-2001 and 2002-2011 Author/Creator: Stone, Wesley W., author Publication/Creation: Reston, Virginia. : U.S. Department of the Interior, U.S. Geological Survey, 2014 Resource Type: Book Access & Availability: Loading
37. Groundwater quality in the Columbia Plateau and Snake River Plain basin-fill and basaltic-rock aquifers and the Hawaiian volcanic-rock aquifers, Washington, Idaho, and Hawaii, 1993-2005 Author/Creator: Rupert, Michael G., 1965- author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2014 Resource Type: Book Access & Availability: Loading
38. Water quality in the Northern Atlantic coastal plain surficial aquifer system, Delaware, Maryland, New Jersey, New York, North Carolina, and Virginia, 1988-2009 Author/Creator: Denver, J. M., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2014 Resource Type: Book Access & Availability: Loading
39. The quality of our nation's waters : factors affecting public-supply-well vulnerability to contamination : understanding observed water quality and anticipating future water quality Author/Creator: Eberts, Sandra M., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2013 Resource Type: Book Access & Availability: Loading
40. Multi-regional synthesis of temporal trends in biotic assemblages in streams and rivers of the continental United States Author/Creator: Miller, Matthew P., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, National Water-Quality Assessment Program, 2013 Resource Type: Book Access & Availability: Loading