National Water-Quality Assessment (NAWQA) Program
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Showing results 1526 to 1551 of 2001.
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Pankow, J.F., Asher, W.E., and Zogorski, J.S., 2006, Source apportionment modeling of volatile organic compounds in streams: Environmental Toxicology and Chemistry, vol. 25, no. 4, p. 921-932. Available Online
Peterson, David A., and Zumberge, Jeremy R., 2006, Comparison of Macroinvertebrate Community Structure between Two Riffle-Based Sampling Protocols in Wyoming, Colorado, and Montana, 2000-2001: U.S. Geological Survey Scientific Investigations Report 2006-5117, 12 p. Available Online
Qi, S.L., and Gurdak, J.J., 2006, Percentage of probability of nonpoint-source nitrate contamination of recently recharged ground water in the High Plains aquifer: U.S. Geological Survey Digital Data Series, DDS-192, on-line only. Available Online
Robinson, Jr., G.R., and Ayotte, J.D., 2006, The influence of geology and land use on arsenic in stream sediments and ground waters in New England, USA: Applied Geochemistry, vol. 21 , p. 1482-1497. doi:10.1016/j.apgeochem.2006.05.004 Available Online
Romanok, Kristin, Fischer, Jeffrey M., Riva-Murray, Karen, Brightbill, Robin, and Bilger, Michael, 2006, Organic compounds and trace elements in fish tissue and bed sediment in the Delaware River Basin, New Jersey, Pennsylvania, New York, and Delaware, 1998-2000: U.S. Geological Survey Scientific Investigations Report 2006-5150, 69 p. Available Online
Rosen, M.R., Schaefer, D.H., Toccalino, P.L., and Delzer, G.C., 2006, Occurrence of anthropogenic organic compounds in ground water and finished water of community water systems in Eagle and Spanish Springs Valleys, Nevada, 2002-2004: U.S. Geological Survey Scientific Investigations Report 2006-5210, 31 p. Available Online
Rowe, B.L., Zogorski, J.S., and Valder, J.F., 2006, Volatile organic compounds in samples from domestic and public wells, 1985-2002: U.S. Geological Survey Scientific Investigations Map SIM 2938, 1 sheet. Available Online
Ruddy, B.C., Lorenz, D.L., and Mueller, D.K., 2006, County-level estimates of nutrient inputs to the land surface of the conterminous United States, 1982-2001: U.S. Geological Survey, Scientific Investigations Report 2006-5012, 17 p. Available Online
Schaefer, D.H., Thiros, S.A., Rosen, M.R., 2006, Ground-water quality in the carbonate-rock aquifer of the Great Basin, Nevada and Utah, 2003: U.S. Geological Survey Scientific Investigations Report 2005-5232, 32 p. Available Online
Schapp, Bryan D., and Zogorski, John S., 2006, Occurrence of trihalomethanes in the Nation's ground water and drinking-water supply wells, 1985-2002: U.S. Geological Survey Scientific Investigations Report 2006-5068, 64 p. 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, 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
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
Stackelberg, P.E., Gilliom, R.J., Wolock, D.M., and Hitt, K.J., 2006, Development and application of a regression equation for estimating the occurrence of atrazine in shallow ground water beneath agricultural areas of the United States: U.S. Geological Survey, Scientific Investigations Report 2005-5287, 12 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
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
Stone, W.W., and Wilson, J.T., 2006, Preferential flow estimates to an agricultural tile drain with implications for glyphosate transport: Journal of Environmental Quality, vol. 35, no. 5, p. 1825-1835. doi:10.2134/jeq2006.0068 Available Online
Terrio, Paul J., 2006, Concentrations, fluxes, and yields of nitrogen, phosphorus, and suspended sediment in the Illinois River Basin, 1996-2000: U.S. Geological Survey Scientific Investigations Report 2006-5078, 48 p. Available Online
Thoms, R.B., Johnson, R.L., and Healy, R.W., 2006, User's guide to the variably saturated flow (VSF) process for MODFLOW: U.S. Geological Survey Techniques and Methods, 6-A18, 58 p. Available Online
Toccalino, P.L., and Norman, J.E., 2006, Health-Based Screening Levels to Evaluate U.S. Geological Survey Ground-Water Quality Data: Risk Analysis, vol. 26, no. 5, p. 1339-1348. doi: 10.1111/j.1539-6924.2006.00805.x Available Online
Toccalino, P.L., Rowe, B.L., and Norman, J.E., 2006, Volatile organic compounds in the Nation's drinking-water supply wells-What findings may mean to human health: U.S. Geological Survey Fact Sheet 2006-3043, 4 p. Available Online
Van Metre, P.C., Horowitz, A.J., Mahler, B.J., Foreman, W.T., Fuller, C.C., Burkhardt, M.R., Elrick, K.A., Furlong, E.T., Skrobialowski, S.C., Smith, J.J., Wilson, J.T., and Zaugg, S.D., 2006, Effects of Hurricanes Katrina and Rita on the chemistry of bottom sediments in Lake Pontchartrain, Louisiana, USA: Environmental Science and Technology, vol. 40, no. 22, p. 6894-6902. doi: 10.1021/es060933g Available Online
Van Metre, P.C., Horowitz, A.J., Mahler, B.J., Foreman, W.T., Fuller, C.C., Burkhardt, M.R., Elrick, K.A., Furlong, E.T., Skrobialowski, S.C., Smith, J.J., Wilsont, J.T., and Zaugg, S.D., 2006, Effects of Hurricanes Katrina and Rita on the chemistry of bottom sediments in Lake Pontchartrain: in Science and the Storms: the USGS response to the hurricanes of 2005, Eds. G.S. Ferris, G.J. Smith, M.P. Crane, C.R. Demas, L.L. Robbins, and D.L. Lavoie. U.S. Geological Survey Circular 1306, 274 p. Available Online
Van Metre, P.C., Wilson, J.T., and Kimball, B., 2006, Sources of polychlorinated biphenyls to Devil's Swamp Lake, Louisiana: U.S. Geological Survey Scientific Investigations Report 2006-5301, 51 p. Available Online
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