National Water-Quality Assessment (NAWQA) Program
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Showing results 101 to 126 of 606.
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Squillace, Paul J., Pankow, James F., Korte, Nic E., and Zogorski, John S., 1996, Environment behavior and fate of methyl tert-butyl ether (MTBE): U.S. Geological Survey Fact Sheet 203-96, 6 p. Available Online
Squillace, Paul J., Moran, Michael J., Lapham, Wayne W., Price, Curtis V., Clawges, Rick M., and Zogorski, John S., 1999, Volatile organic compounds in untreated ambient groundwater of the United States, 1985-95: Environmental Science and Technology, vol. 33, no. 23, p. 4176-4187. doi: 10.1021/es990234m Available Online
Squillace, Paul J., Moran, Michael J., and Price, Curtis V., 2004, VOCs in shallow groundwater in new residential/commercial areas of the United States: Environmental Science and Technology, vol. 38, no. 20, p. 5327-5338. doi: 10.1021/es0349756 Available Online
Squillace, P.J., Zogorski, J.S., and Wilber, W.G., 1997, Preliminary assessment of the occurrence and possible sources of MTBE in groundwater in the United States, 1993-1994, U.S. Geological Survey: Chilton, John and others., eds., Congress on Groundwater in the Urban Environment, Nottingham, United Kingdom, Sept. 21-17 [Proceedings]: Netherlands, A.A. Balkema, p. 537-542.
Squillace, P.J., and Moran, M.J., 2007, Factors associated with sources, transport, and fate of volatile organic compounds and their mixtures in aquifers of the United States: Environmental Science and Technology, vol. 41, no. 7, p. 2123-2130. doi: 10.1021/es061079w Available Online
Squillace, P.J., and Moran, M.J., 2006, Factors associated with sources, transport, and fate of volatile organic compounds in aquifers of the United States and implications for ground-water management and assessments: U.S. Geological Survey Scientific Investigations Report 2005-5269, 40 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., 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 Nowell, L.H., 2008, Comparison of pesticide concentrations in streams at low flow in six metropolitan areas of the United States: Environmental Toxicology and Chemistry, vol. 27, no. 2, p. 288-298. doi: 10.1897/07-276 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, N.E., Mueller, D.K., and Wolock, D.W., Hitt, K.J., and Gronberg, J.M., 2010, Development and application of regression models for estimating nutrient concentrations in streams of the conterminous United States, 1992-2001: U.S. Geological Survey Scientific Investigations Report 2009-5199, 22 p. Available Online
Soltero, S., Garcia, A.M., Cuffney, T., and McMahon, G., 2010, Effects of urbanization on stream ecosystems (Spanish EUSE Radio WALO 1): U.S. Geological Survey Multimedia Gallery Home Audio 368, 13 minutes. Available Online
Soltero, S., Diaz, P., Douglas, R. and Ortiz, M., 2010, Effects of urbanization on stream ecosystems (Spanish EUSE Radio WALO 2): U.S. Geological Survey Multimedia Gallery Home Audio 384, 33 minutes. Available Online
Smith, Stephen B., 1998, Investigations of endocrine disruption in aquatic systems associated with the National Water-Quality Assessment (NAWQA) Program: U.S. Geological Survey Fact Sheet FS-081-98, 4 p. Available Online
Smith, Richard A., Schwarz, Gregory E., and Alexander, Richard B., 1997, Regional interpretation of water-quality monitoring data: Water Resources Research, December 1997, vol. 33, no. 12, p. 2781-2798. Available Online
Smith, Richard A., Alexander, Richard B., Tasker, Gary D., Price, Curtis V., Robinson, Keith W., and White, Dale A., 1993, Statistical modeling of water-quality in regional watersheds: Watershed '93, p. 751-754.
Skinner, K.D., and Rupert, M.G., 2012, Numerical model simulations of nitrate concentrations in groundwater using various nitrogen input scenarios, mid-Snake region, south-central Idaho: U.S. Geological Survey Scientific Investigations Report 2012-5237, 30p. Available Online
Short, T.M., Giddings, E.M.P., Zappia, Humbert, and Coles, J.F., 2005, Urbanization effects on stream habitat characteristics in: Boston, Massachusetts; Birmingham, Alabama, and Salt Lake City, Utah: in Brown, L.R., Gray, R.H., Hughes, R.M., and Meador, M.R., eds., Effects of Urbanization on Stream Ecosystems: AFS Symposium 47, American Fisheries Society, p. 317-332. Available Online
Shih, Jhih-Shyang, Alexander, R.B., Smith, R.A., Boyer, E.W., Schwarz, G.E., and Chung, Susie, 2010, An initial SPARROW model of land use and in-stream controls on total organic carbon in streams of the conterminous United States: U.S. Geological Survey Open-File Report 2010-1276, 22 p. Available Online
Sheets, R.A., 2007, Hydrogeologic Setting and Ground-Water Flow Simulations of the Great Miami River Basin Regional Study Area, Ohio, Section 7 in Paschke, Suzanne S., ed., 2007, Hydrogeologic settings and ground-water flow simulations for regional studies of the transport of anthropogenic and natural contaminants to public-supply wells--studies begun in 2001: U.S. Geological Survey Professional Paper 1737-A, p. 7-1 to 7-21. Available Online
Scudder, B.C., Chasar, L.C., Wentz, D.A., Bauch, N.J., Brigham, M.E., Moran, P.W., and Krabbenhoft, D.P., 2009, Mercury in fish, bed sediment, and water from streams across the United States, 1998-2005: U.S. Geological Survey Scientific Investigations Report 2009-5109, 74 p. Available Online
Scudder, B.C., Chasar, L.C., DeWeese, L.R., Brigham, M.E., Wentz, D.A., and Brumbaugh, W.G., 2008, Procedures for collecting and processing aquatic invertebrates and fish for analysis of mercury as part of the National Water-Quality Assessment Program: U.S. Geological Survey Open-File Report 2008-1208, 34 p. Available Online
Scudder Eikenberry, B.C., Riva-Murray, Karen, Smith, M.J., Bradley, P.M., Button, D.T., Clark, J.M., Burns, D.A., and Journey, C.A., 2012, Environmental settings of selected streams sampled for mercury in New York and South Carolina, 2005-09: U.S. Geological Survey Open-File Report 2011-1318, 36 p. Available Online
Schwarz, G.E., Alexander, R.B., Smith, R.A., and Preston, S.D., 2011, The regionalization of national-scale SPARROW models for stream nutrients: Journal of the American Water Resources Association, online 22Aug2011 in advance of print, 22 p. doi: 10.1111/j.1752-1688.2011.00581.x Available Online
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