National Water-Quality Assessment (NAWQA) Program
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Showing results 251 to 276 of 606.
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Ivahnenko, Tamara, and Zogorski, John S., 2006, Sources and occurrence of chloroform and other trihalomethanes in drinking-water supply wells in the United States, 1986-2001: U.S. Geological Survey Scientific Investigations Report 2006-5015, 13 p. Available Online
Landon, M.K., Eberts, S.M., Jurgens, B.C., Katz, B.G., Burow, K.R., Crandall, C.A., Brown, C.J., and Starn J.J., 2006, Knowledge of where and how contamination-susceptible water enters public-supply wells can be used to improve monitoring strategies and protection plans: Ground Water Protection Council Annual Forum 2006, Sept.30-Oct.4, 2006, Miami Beach, FL., 15 p. Available Online
Lapham, W.W., Carter, J.M., Zogorski, J.S., and Valder, J.F., 2006, The occurrence of volatile organic compounds in aquifers of the United States: U.S. Geological Survey Scientific Investigations Map SIM 2931, 1 sheet. Available Online
Mahler, B.J., Van Metre, P.C., and Callender, E., 2006, Trends in metals in urban and reference lake sediments across the United States, 1970-2001: Environmental Toxicology and Chemistry, vol. 25, no. 7, p. 1698-1709. Available Online
McMahon, P.B., and Bohlke, J.K., 2006, Regional patterns in the isotopic composition of natural and anthropogenic nitrate in ground water, High Plains, USA: Environmental Science & Technology, vol. 40, p. 2965-2970. doi: 10.1021/es052229q Available Online
McMahon, P.B., Dennehy, K.F., Bruce, B.W., Bohlke, J.K., Michel, R.L., Gurdak, J.J., and Hurlbut, D.B., 2006, Storage and transit time of chemicals in thick unsaturated zones under rangeland and irrigated cropland, High Plains, United States: Water Resources Research, vol. 42, W03413, 18 p. doi: 10.1029/2005WR004417 Available Online
Moran, M.J., Hamilton, P.A., and Zogorski, J.S., 2006, Volatile organic compounds in the Nation's ground water and drinking-water supply wells-a summary: U.S. Geological Survey Fact Sheet 2006-3048, 6 p. Available Online
Mueller, D.K., and Spahr, N.E., 2006, Nutrients in streams and rivers across the Nation: U.S. Geological Survey Scientific Investigations Report 2006-5107, 44 p. Available Online
Munn, M.D., Gilliom, R.J., Moran, P.W., and Nowell, L.H., 2006, Pesticide toxicity index for freshwater aquatic organisms, 2nd Edition: U.S. Geological Survey Scientific Investigations Report 2006-5148, 81 p. Available Online
Nolan, Bernard T., and Hitt, Kerie J., 2006, Vulnerability of shallow groundwater and drinking-water wells to nitrate in the United States: Environmental Science and Technology, vol. 40, no. 24, p. 7834-7840. doi: 10.1021/es060911u Available Online
Nowell, L.H., Crawford, C.G., Nakagaki, N., Thelin, G.P., and Wolock, D.M., 2006, Regression model for explaining and predicting concentrations of dieldrin in whole fish from United States streams: U.S. Geological Survey Scientific Investigations Report 2006-5020, 40 p. Available Online
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
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
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
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
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
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
Vecchia, A.V., and Crawford, C.G., 2006, Simulation of daily pesticide concentrations from watershed characteristics and monthly climatic data: U.S. Geological Survey Scientific Investigations Report 2006-5181, 60 p. Available Online
Zogorski, John S., Carter, Janet M., Ivahnenko, Tamara, Lapham, Wayne W., Moran, Michael J., Rowe, Barbara L., Squillace, Paul J., and Toccalino, Patricia L., 2006, Volatile organic compounds in the Nation's ground water and drinking-water supply wells: U.S. Geological Survey Circular 1292, 101 p. Available Online
Alexander, Richard B., Boyer, E.W., Smith, R.A., Schwarz, G.E., and Moore, R.B., 2007, The role of headwater streams in downstream water quality: Journal of the American Water Resources Association, vol. 43, no. 1, p. 41-59. doi: 10.1111/j.1752-1688.2007.00005.x Available Online
Asher, W.E., Luo, Wentai, Campo, K.W., Bender, D.A., Robinson, K.W, Zogorski, J.S., and Pankow, J.F., 2007, Application of a source apportionment model in consideration of volatile organic compounds in an urban stream: Environmental Toxicology and Chemistry, vol. 26, no. 8, p. 1606-1613. doi: 10.1897/06-557 Available Online
Ayotte, J.D., Flanagan, S.M., and Morrow, W.S., 2007, Occurrence of uranium and 222radon in glacial and bedrock aquifers in the northern United States, 1993-2003: U.S. Geological Survey Scientific Investigations Report 2007-5037, 84 p. Available Online
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