National Water-Quality Assessment (NAWQA) Program
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Showing results 276 to 301 of 606.
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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, 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
Barbash, J.E. , 2007, The geochemistry of pesticides. In: Environmental Geochemistry (ed. B. S. Lollar), Volume 9 of Treatise on Geochemistry (eds. H.D.Holland and K.K. Turekian): Elsevier--Pergamon, Oxford, UK, on-line edition, 43 p. Available Online
Bartholomay, Roy C., Carter, Janet M., Qi, Sharon L., Squillace, Paul J., and Rowe, Gary L., 2007, Summary of selected U.S. Geological Survey data on domestic well water quality for the Centers for Disease Control's National Environmental Public Health Tracking Program: U.S. Geological Survey Scientific Investigations Report 2007-5213, 57 p. Available Online
Belden, J.B., Gilliom, R.J., Martin, J.D., and Lydy, M.J., 2007, Relative toxicity and occurrence patterns of pesticide mixtures in streams draining agricultural watersheds dominated by corn and soybean production: Integrated Environmental Assessment and Management, vol.3, no.1, p. 90-100. Available Online
Bell, A.H., and Scudder, B.C., 2007, Mercury accumulation in periphyton of eight river ecosystems: Journal of the American Water Resources Association, vol. 43, no. 4, p. 957-968. doi: 10.1111/j.1752-1688.2007.00078.x Available Online
Brown, C.J., Jurgens, B.C., Katz, B.G., Landon, M.K., and Eberts, S.M., 2007, Arsenic and uranium in four aquifer settings: occurrence, distribution, and mechanisms for transport to supply wells: 2007 NGWA Naturally Occurring Contaminants Conference: Arsenic, Radium, Radon, Uranium, March 22-23, 2007, Charleston, South Carolina., 15 p. Available Online
Bryant, W.L., Goodbred, S.L., Leiker, T.L., Inouye, Laura, and Johnson , B.T., 2007, Use of Chemical Analysis and Assays of Semipermeable Membrane Devices Extracts to Assess the Response of Bioavailable Organic Pollutants in Streams to Urbanization in Six Metropolitan Areas of the United States: U.S. Geological Survey Scientific Investigations Report 2007-5113, 46 p. Available Online
Carlisle, D.M., and Meador, M.R., 2007, A biological assessment of streams in the eastern United States using a predictive model for macroinvertebrate assemblages: Journal of the American Water Resources Association, vol. 43, p. 1194-1207. doi: 10.1111/j.1752-1688.2007.00097.x Available Online
Carlisle, D.M., Meador, M.R., Moulton II, S.R., and Ruhl, P.M., 2007, Estimation and application of indicator values for common macroinvertebrate genera and families of the United States: Ecological Indicators, vol. 7, p. 22-33. doi: 10.1016/j.ecolind.2005.09.005 Available Online
Carter, J.M., Delzer, G.C., Kingsbury, J.A., and Hopple, J.A., 2007, Concentration data for anthropogenic organic compounds in ground water, surface water, and finished water of selected community water systems in the United States, 2002-05: U.S. Geological Survey Data Series 268, 30 p. Available Online
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