National Water-Quality Assessment (NAWQA) Program
More Information about Nutrients
Nutrients National Synthesis
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Effects of Nutrient Enrichment on Stream Ecosystems |
Sources, Transport, and Fate of Agricultural Chemicals
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Showing results 76 to 101 of 649.
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Stanton, J.S., and Qi, S.L., 2006, Ground-water quality of the northern High Plains aquifer, 1997, 2002-04: U.S. Geological Survey Scientific Investigations Report 2006-5138, 59 p. Available Online
Stanton, J.S., and Fahlquist, Lynne, 2006, Ground-water quality beneath irrigated cropland of the northern and southern High Plains Aquifer, Nebraska and Texas, 2003-04: U.S. Geological Survey Scientific Investigations Report 2006-5196, 39 p. Available Online
Stackelberg, Paul E., Kauffman, Leon J., Baehr, Arthur L., and Ayers, Mark A., 2000, Comparability of nitrate, pesticides, and volatile organic compounds in samples from monitoring and public-supply wells, Kirkwood-Cohansey aquifer system, southern New Jersey: U.S. Geological Survey Water-Resources Investigations Report 00-4123, 78 p. Available Online
Stackelberg, Paul E., Hopple, Jessica A., and Kauffman, Leon J., 1997, Occurrence of nitrate, pesticides, and volatile organic compounds in the Kirkwood-Cohansey aquifer system, southern New Jersey: U.S. Geological Survey Water-Resources Investigations Report 97-4241, 8 p. Available Online
Squillace, Paul J., Scott, Jonathon, Moran, Michael J., Nolan, B.T., and Kolpin, Dana W., 2002, VOCs, pesticides, nitrate, and their mixtures in groundwater used for drinking water in the United States: Environmental Science & Technology, vol. 36, no. 9, p. 1923-1930. doi: 10.1021/es015591n Available Online
Spruill,T.B., Tesoriero, A.J., Mew, Jr., H.E., Farrell, K.M., Harden, S.L., Colosimo, A.B., and Kraemer, S.R., 2005, Geochemistry and Characteristics of Nitrogen Transport at a Confined Animal Feeding Operation in a Coastal Plain Agricultural Watershed, and Implications for Nutrient Loading in the Neuse River Basin, North Carolina, 1999-2002: U.S. Geological Survey Scientific Investigations Report 2004-5283, 66 p. Available Online
Spruill, Timothy B., Woodside, Michael D., Harned, Douglas A., McMahon, Gerard, and Eimers, Jody L., 1996, Results of the Albemarle-Pamlico Drainage NAWQA: Nutrients and pesticides in surface water and ground water: Solutions: A Technical Conference on Water Quality, March 19-21,1996 North Carolina State University, p. 24-30.
Spruill, Timothy B., Harned, Douglas A., Ruhl, Peter M., Eimers, Jo Leslie, McMahon, Gerard, Smith, Kelly E., Galeone, David R., and Woodside, Michael D., 1998, Water quality in the Albemarle-Pamlico Drainage Basin, North Carolina and Virginia, 1992-95: U.S. Geological Survey Circular 1157, 36 p. Available Online
Spruill, Timothy B., Eimers, Jo Leslie, and Morey, A. Elizabeth (NC Division of Water Quality), 1997, Nitrate-nitrogen concentrations in shallow ground water of the coastal plain of the Albemarle-Pamlico Drainage Basin, North Carolina and Virginia: U.S. Geological Survey Fact Sheet FS-241-96, 4 p. Available Online
Spruill, Timothy B., and Galeone, David R. , 2004, Effectiveness of Riparian Buffers in Reducing Nitrate-Nitrogen Concentrations in Ground Water: Water Science and Technology, vol. 49, no 3, p. 63-70. Available Online
Spruill, Timothy B., and Galeone, David R., 2000, Effectiveness of riparian buffers in reducing nitrate-nitrogen concentrations in ground water: International Conference on Riparian Ecology and Management in Multi-Land Use Watersheds, American Water Resources Association, p. 119-124.
Spruill, Timothy B., 2000, Statistical evaluation of effects of riparian buffers on nitrate and ground water quality: Journal of Environmental Quality, vol. 29, no. 5, p. 1523-1538. Available Online
Spruill, T.B., Showers, W.J., and Howe, S.S., 2002, Application of classification-tree methods to identify nitrate sources in ground water: Journal of Environmental Quality, vol. 31, no. 5, p. 1538-1549. Available Online
Spruill, T.B., and Bratton, John F., 2007, Estimation of Groundwater and Nutrient Fluxes to the Neuse River Estuary, North Carolina: Estuaries and Coasts (2008), p. 501-520. Available Online
Sprague, Lori A., Hirsch, Robert M., and Aulenbach, Brent T., 2011, Nitrate in the Mississippi River and its tributaries, 1980 to 2008: Are we making progress?: Environmental Science & Technology, online in advance of print, 8 p. doi: 10.1021/es201221s Available Online
Sprague, Lori A., Clark, Melanie L., Rus, David L., Zelt, Ronald B, Flynn, Jennifer L., and Davis, Jerri V., 2006, Nutrient and Suspended-Sediment Trends in the Missouri River Basin, 1993-2003: U.S. Geological Survey Scientific Investigations Report 2006-5231, 80 p. Available Online
Sprague, Lori A., and Gronberg, JoAnn M., 2012, Relating management practices and nutrient export in agricultural watersheds of the United States: Journal of Environmental Quality, vol. 41, no. 6, p. 1939-1950. doi: 10.2134/jeq2012.0073 Available Online
Sprague, L.A., Zuellig, R.E., and Dupree, J.A., 2006, Effects of urban development on stream ecosystems along the Front Range of the Rocky Mountains, Colorado and Wyoming: U.S. Geological Survey Fact Sheet 2006-3083, 4 p. Available Online
Sprague, L.A., Zuellig, R.E., and Dupree, J.A., 2006, Effects of urbanization on stream ecosystems in the South Platte River Basin, Colorado and Wyoming: U.S. Geological Survey Scientific Investigations Report 2006-5101-A, 139 p. Available Online
Sprague, L.A., Mueller, D.K., Schwarz, G.E., and Lorenz, D.L., 2009, Nutrient trends in streams and rivers of the United States, 1993-2003: U.S. Geological Survey Scientific Investigations Report 2008-5202, 196 p. Available Online
Sprague, L.A., Harned, D.A., Hall, D.W., Nowell, L.H., Bauch, N.J., and Richards, K.D., 2007, Response of stream chemistry during base flow to gradients of urbanization in selected locations across the conterminous United States: U.S. Geological Survey Scientific Investigations Report 2007-5083, 132 p. Available Online
Sprague, L.A., and Lorenz, D.L., 2009, Regional nutrient trends in streams and rivers of the United States, 1993-2003: Environmental Science and Technology, vol. 43, no. 10, p. 3430-3435. doi: 10.1021/es803664x Available Online
Spahr, Norman E., Boulger, Robert W., and Szmajter, Richard J., 2000, Water quality at basic fixed sites in the Upper Colorado River Basin National Water-Quality Assessment Study Unit, October 1995-September 1998: U.S. Geological Survey Water-Resources Investigations Report 99-4223, 63 p. Available Online
Spahr, Norman E., Apodaca, Lori E., Deacon, Jeffrey R., Bails, Jeffrey B., Bauch, Nancy J., Smith, Michelle, and Driver, Nancy E., 2001, Water quality in the Upper Colorado River Basin, Colorado, 1996-98: U.S. Geological Survey Circular 1214, 33 p. Available Online
Spahr, Norman E., and Deacon, Jeffrey R., 1998, Water-quality characteristics of the Slate and East Rivers, Colorado, during the winter recreational season, December 1996: U.S. Geological Survey Open-File Report 98-279, 9 p. Available Online
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