National Water-Quality Assessment (NAWQA) Program
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Showing results 351 to 376 of 609.
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Marvin-DiPasquale, M.C., Lutz, M.A., Krabbenhoft, D.P., Aiken, G.R., Orem, W.R., Hall, B.D., DeWild, J.F., and Brigham, M.E., 2008, Total mercury, methylmercury, methylmercury production potential, and ancillary streambed-sediment and pore-water data for selected streams in Oregon, Wisconsin, and Florida, 2003-04: U.S. Geological Survey Data Series 375, 24 p. Available Online
McMahon, P.B., and Chapelle, F.H., 2008, Redox processes and water quality of selected principal aquifer systems: Ground Water, vol. 46, no. 2, 13 p. doi: 10.1111/j.1745-6584.2007.00385.x Available Online
McMahon, P.B., Bohlke, J.K., Kauffman, L.J., Kipp, K.L., Landon, M.K., Crandall, C.A., Burow, K.R., and Brown, C.J., 2008, Source and transport controls on the movement of nitrate to public supply wells in selected principal aquifers of the United States: Water Resources Research, vol. 44, W04401, 17 p. doi: 10.1029/2007WR006252 Available Online
McMahon, P.B., Burow K.R., Kauffman, L.J.,Eberts, S.M., Bohlke, J.K., and Gurdak, J.J., 2008, Simulated response of water quality in public supply wells to land use change: Water Resources Research, vol. 44, W00A06, 16 p. doi: 10.1029/2007WR006731 Available Online
Plummer, L.N., Busenberg, E., Eberts, S.M., Bexfield, L.M., Brown, C.J., Fahlquist, L.S., Katz, B.G., and Landon, M.K., 2008, Low-level detections of halogenated volatile organic compounds in groundwater: Use in vulnerability assessments: Journal of Hydrologic Engineering, vol. 13, no. 11, November 2008, p. 1049-1068. doi: 10.1061/(ASCE)1084-0699(2008)13:11(1049) Available Online
Porter, Stephen D., 2008, Algal Attributes: An Autecological Classification of Algal Taxa Collected by the National Water-Quality Assessment Program: U.S. Geological Survey Data Series 329, 18 p. Available Online
Porter, Stephen D., Mueller, David K., Spahr, Norman E., Munn, Mark D., and Dubrovsky, Neil M., 2008, Efficacy of algal metrics for assessing nutrient and organic enrichment in flowing waters: Freshwater Biology, vol. 53, p. 1036-1054. doi: 10.1111/j.1365-2427.2007.01951.x Available Online
Puckett, L.J., Zamora, C., Essaid, H., Wilson, J.T., Johnson, H.M., Brayton, M.J., and Vogel, J.R., 2008, Transport and Fate of Nitrate at the Ground-Water/Surface-Water Interface: Journal of Environmental Quality, vol. 37, p. 1034-1050. doi: 10.2134/jeq2006.0550 Available Online
Rosen, Michael R., and Lapham, Wayne W., 2008, Introduction to the U.S. Geological Survey National Water-Quality Assessment (NAWQA) of Ground-Water Quality Trends and Comparison to Other National Programs: Journal of Environmental Quality, vol. 37, no. 5, p. S190-S198. doi: 10.2134/jeq2008.0049 Available Online
Rosen, Michael R., Voss, Frank D., and Arufec, Jorge A., 2008, Evaluation of Intra-annual Variation in U.S. Geological Survey National Water Quality Assessment Ground Water Quality Data: Journal of Environmental Quality, vol. 37, no. 5, p. S199-S208. doi: 10.2134/jeq2007.0055 Available Online
Rupert, Michael G., 2008, Decadal-Scale Changes of Nitrate in Ground Water of the United States, 1988-2004: Journal of Environmental Quality, vol. 37, no. 5, p. S240-S248. doi: 10.2134/jeq2007.0055 Available Online
Sargent, B. Pierre, Maupin, Molly A., and Hinkle, Stephen R., 2008, Estimated Withdrawals from Stream-Valley Aquifers and Refined Estimated Withdrawals from Selected Aquifers in the United States, 2000: USGS Scientific Investigations Report 2008-5003, 71 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
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
Steele, G.V., Johnson, H.M., Sandstrom, M.W., Capel, P.D., and Barbash, J.E., 2008, Occurrence and fate of pesticides in four contrasting agricultural settings in the United States: Journal of Environmental Quality, vol. 37, p. 1116-1132. doi: 10.2134/jeq2007.0166 Available Online
Stone, W.W., Gilliom, R.J., and Crawford, C.G., 2008, Watershed Regressions for Pesticides (WARP) for predicting annual maximum and maximum moving-average concentrations of atrazine in streams: U.S. Geological Survey Open-File Report 2008-1186, 19 p. Available Online
U.S. Geological Survey, 2008, Relations of Water Quality to Agricultural Chemical Use and Environmental Setting at Various Scales - Results from Selected Studies of the National Water-Quality Assessment Program: U.S. Geological Survey Fact Sheet FS 2007-3088, 6 p. Available Online
Valder, Joshua F., Delzer, Gregory C., Price, Curtis V., and Sandstrom, Mark W., 2008, Study design and percent recoveries of anthropogenic organic compounds with and without the addition of ascorbic acid to preserve water samples containing free chlorine, 2004-06: U.S. Geological Survey Open-File Report 2008-1226, 86 p. Available Online
Vecchia, A.V., Martin, J.D., and Gilliom, R.J., 2008, Modeling variability and trends in pesticide concentrations in streams: Journal of the American Water Resources Assocation, vol. 44, no. 5, October 2008, p. 1308-1324. doi: 10.1111/j.1752-1688.2008.00225.x Available Online
Vogel, J.R., Majewski, M.S., and Capel, P.D., 2008, Pesticides in rain in Four agricultural watersheds in the United States: Journal of Environmental Quality, vol. 37, p. 1101-1115. doi: 10.2134/jeq2007.0079 Available Online
Webb, R.M.T., Wieczorek, M.E., Nolan, B.T., Hancock, T.C., Sandstrom, M.W., Barbash, J.E., Bayless, E.R., Healy, R.W., and Linard, J., 2008, Variations in pesticide leaching related to land use, pesticide properties, and unsaturated zone thickness: Journal of Environmental Quality, vol. 37, p. 1145-1157. doi: 10.2134/jeq2007.0245 Available Online
Zamora, Celia, 2008, Estimating Water Fluxes Across the Sediment-Water Interface in the Lower Merced River,California: U.S. Geological Survey Scientific Investigations Report 2007-5216, 47 p. Available Online
Alexander, R.B., Bohlke, J.K., Boyer, E.W., David, M.B., Harvey, J.W., Mulholland, P.J., Seitzinger, S.P., Tobias, C.R., Tonitto, C., Wollheim, W.M., 2009, Dynamic modeling of nitrogen losses in river networks unravels the coupled effects of hydrological and biogeochemical processes : Biogeochemistry (2009) 93:91-116, p. 91-116. doi: 10.1007/s10533-008-9274-8 Available Online
Barlow, Jeannie R.B., and Coupe, Richard H., 2009, Use of heat to estimate streambed fluxes during extreme hydrologic events: Water Resources Research, vol. 45, W01403, 10 p. doi: 10.1029/2007WR006121 Available Online
Bauch, N.J., Chasar, L.C., Scudder, B.C., Moran, P.W., Hitt, K.J., Brigham, M.E., Lutz, M.A., and Wentz, D.A., 2009, Data on mercury in water, bed sediment, and fish from streams across the United States, 1998-2005: U.S. Geological Survey Data Series 307, 33 p. Available Online
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