National Water-Quality Assessment (NAWQA) Program
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Showing results 326 to 351 of 606.
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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
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
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
Stolp, B.J. , 2007, Hydrogeologic Setting and Ground-Water Flow Simulations of the Salt Lake Valley Regional Study Area, Utah, Section 2 in Paschke, S.S., ed., 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. 2-1 to 2-22. Available Online
Tesoriero, Anthony J., Saad, David A., Burow, Karen R., Frick, Elizabeth A., Puckett, Larry J., and Barbash, Jack E., 2007, Linking ground-water age and chemistry data along flow paths: Implications for trends and transformations of nitrate and pesticides: Journal of Contaminant Hydrology, vol. 94, p. 139-155. doi: 10.1016/j.jconhyd.2007.05.007 Available Online
Toccalino, P.L., 2007, Development and application of health-based screening levels for use in water-quality assessments: U.S. Geological Survey Scientific Investigations Report 2007-5106, 12 p. Available Online
Warner, K.L., and Morrow, W.S., 2007, Pesticide and transformation product detections and age-dating relations from till and sand deposits: Journal of the American Water Resources Association, vol. 43, no. 4, p. 911-922. doi: 10.1111/j.1752-1688.2007.00067.x Available Online
Weeks, E.P., and McMahon, P.B., 2007, Nitrous oxide fluxes from cultivated areas and rangeland: U.S. High Plains: Vadose Zone Journal, vol. 6, p. 496-510. doi: 10.2136/vzj2006.0164 Available Online
Zinn, B.A., and Konikow, L.F., 2007, Effects of intraborehole flow on groundwater age distribution: Hydrogeology Journal, vol. 15, no. 4, June, p. 633-643. doi: 10.1007/s10040-006-0139-8 Available Online
Asher, W., Bender, D.A., Zogorski, J.S., and Bartholomay, R.C., 2006, StreamVOC-A deterministic source-apportionment model to estimate volatile organic compound concentrations in rivers and streams: U.S. Geological Survey Scientific Investigations Report 2006-5110, 167 p. Available Online
Bell, R.W., and Williamson, A.K., 2006, Data delivery and mapping over the Web-National Water-Quality Assessment Data Warehouse: U.S. Geological Survey Fact Sheet 2006-3101, 6 p. Available Online
Bender, D.A., Price, C.V., and Valder, J.F., 2006, Occurrence of volatile organic compounds in selected urban streams in the United States, 1995-2003: U.S. Geological Survey Scientific Investigations Map SIM 2937, 1 sheet. Available Online
Carter, J.M., Grady, S.J., Delzer, G.C., Koch, Bart, and Zogorski, J.S., 2006, Occurrence of MTBE and other gasoline oxygenates in CWS source waters: Journal of the American Water Works Association, vol. 98, no. 4, p. 91-104. Available Online
Embrey, S.S., and Runkle, D.L., 2006, Microbial quality of the Nation's ground-water resources, 1993-2004: U.S. Geological Survey Scientific Investigations Report 2006-5290, 34 p. Available Online
Fulkerson, M., and Nnadi, F.N., 2006, Predicting mercury wet deposition in Florida--A simple approach: Atmospheric Environment, vol. 40, p. 3962-3968. doi: 10.1016/j.atmosenv.2006.02.028 Available Online
Gilliom, R.J., and Hamilton, P.A., 2006, Pesticides in the Nation's streams and ground water, 1992-2001--A summary: U.S. Geological Survey Fact Sheet 2006-3028, 6 p. Available Online
Gilliom, R.J., Barbash, J.E., Crawford, C.G., Hamilton, P.A., Martin, J.D., Nakagaki, Naomi, Nowell, L.H., Scott, J.C., Stackelberg, P.E., Thelin, G.P., and Wolock, D.M., 2006, Pesticides in the nation's streams and ground water, 1992-2001: U.S. Geological Survey Circular 1291, 172 p. Available Online
Goldstein, R.M., Carlisle, D.M., and Short, T.M., 2006, Can basin land use effects on physical characteristics of streams be determined at broad geographic scales?: Journal of Environmental Monitoring and Assessment, vol. 130, no. 1-3, p. 495-510. doi: 10.1007/s10661-006-9439-7 Available Online
Hirsch, Robert M., Hamilton, Pixie A., and Miller, Timothy L., 2006, U.S. Geological Survey perspective on water-quality monitoring and assessment: Journal of Environmental Monitoring, vol. 8, p. 512-518. doi: 10.1039/b603613a Available Online
Hirsch, Robert M., Hamilton, Pixie A., and Miller, Timothy L., 2006, The increasing need for science to inform policy - more than 30 years after passage of the Clean Water Act: Water Environment Research, vol. 78, no. 9, October 2006, p. 899-900. Available Online
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
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