National Water-Quality Assessment (NAWQA) Program
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Showing results 76 to 101 of 2001.
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Wentz, Dennis A., Waite, Ian R., and Rinella, Frank A., 1998, Comparison of streambed sediment and aquatic biota as media for characterizing trace elements and organochlorine compounds in the Willamette Basin, Oregon: Environmental Monitoring and Assessment, vol. 51, p. 673-693. Available Online
Wentz, Dennis A., Bonn, Bernadine A., Carpenter, Kurt D., Hinkle, Stephen R., Janet, Mary L., Rinella, Frank A., Uhrich, Mark A., Waite, Ian R., Laenen, Antonius, and Bencala, Kenneth E., 1998, Water quality in the Willamette Basin, Oregon, 1991-95: U.S. Geological Survey Circular 1161, 34 p. Available Online
Wentz, D.A., and McKenzie, S.W., 1991, National Water-Quality Assessment Program--The Willamette Basin, Oregon: U.S. Geological Survey Open-File Report 91-167, 2 p. Available Online
Welch, H.L., Green, C.T., Rebich, R.A., Barlow, J.R.B., and Hicks, M.B., 2010, Unintended consequences of biofuels production--The effects of large-scale crop conversion on water quality and quantity: U.S. Geological Survey Open-File Report 2010-1229, 6 p. Available Online
Welch, H.L., Green, C.T., Coupe, R.H., 2011, The fate and transport of nitrate in shallow groundwater in northwestern Mississippi, USA: Hydrogeology Journal, 14 p., online in advance of print. doi: 10.1007/s10040-011-0748-8 Available Online
Welch, H. L., Kingsbury, J. A., Tollett, R.W., and Seanor, R.C., 2009, Quality of shallow groundwater and drinking water in the Mississippi embayment-Texas coastal uplands aquifer system and the Mississippi River Valley alluvial aquifer, south-central United States, 1994-2004: U.S. Geological Survey Scientific Investigations Report 2009-5091, 51 p. Available Online
Welch, Alan, Ryker, Sarah, Helsel, Dennis, and Hamilton, Pixie, 2001, Arsenic in ground water of the United States: An overview: Water Well Journal, February 2001, p. 30-33.
Welch, Alan H., Westjohn, D.B. Helsel, Dennis R., and Wanty, Richard B., 2000, Arsenic in ground water of the United States: Occurrence and geochemistry: Ground Water, vol. 38, no. 4, p. 589-604. Available Online
Welch, Alan H., Watkins, Sharon A., Helsel, Dennis R., and Focazio, Michael J., 2000, Arsenic in ground-water resources of the United States: U.S. Geological Survey Fact Sheet FS-063-00, 4 p. Available Online
Welch, Alan H., Helsel, Dennis R., Focazio, Michael J., and Watkins, Sharon A., 2000, Arsenic in ground water supplies of the United States: In: Arsenic exposure and health effects, Chapell, W.R., Abernathy, C.O., and Calderon, R.L., eds., Elsevier Science B.V., ISBN-13: 978-0-08-043648-7, 475 p. Available Online
Welch, Alan H., and Stollenwerk, Kenneth G., eds., 2003, Arsenic in ground water-- geochemistry and occurrence: Boston, Kluwer Academic Publishers, 475 p. Available Online
Welch, Alan H., and Lico, Michael S., 1998, Factors controlling As and U in shallow ground water, southern Carson Desert, Nevada: Applied Geochemistry, vol. 13, no. 4, p. 521-539. doi: 10.1016/S0883-2927(97)00083-8 Available Online
Welch, A.H., Plume, R.W., Frick, E.A., and Hughes, J.L., 1989, Ground-water-quality assessment of the Carson River Basin, Nevada and California: Analysis of available water-quality data through 1987: U.S. Geological Survey Open-File Report 89-382, 115 p. Available Online
Welch, A.H., and Plume, R.W., 1987, Water-quality assessment of the Carson River ground-water basin, Nevada and California: Project Description: U.S. Geological Survey Open-File Report 87-104, 27 p. 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
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
Webb, R.M.T., Sandstrom, M.W., Krutz, L.J., and Shaner, D.L. , 2011, Simulation of branched serial first-order decay of atrazine and metabolites in adapted and nonadapted soils: Environ. Toxicol. Chem. vol.30, no. 9, , p. 1973-1981. doi: 10.1002/etc.597 Available Online
Wates, Michelle L. and Kleiss, Barbara A., 2000, Trace element concentrations in bed sediment in the Mississippi Embayment Study Unit: Proceedings of the 30th Mississippi Water Resources Conference, April 18-19,2000 Raymond, MS, p. 357-363.
Warner, Kelly L., and Schmidt, Arthur R., 1994, National Water-Quality Assessment Program--The Lower Illinois River Basin: U.S. Geological Survey Fact Sheet 94-018, 2 p. Available Online
Warner, Kelly L., 1998, Water-quality assessment of the Lower Illinois River Basin: Environmental setting: U.S. Geological Survey Water-Resources Investigations Report 97-4165, 50 p. Available Online
Warner, Kelly L., 2000, Analysis of nutrients, selected inorganic constituents, and trace elements in water from Illinois community-supply wells, 1984- 91: U.S. Geological Survey Water-Resources Investigations Report 99-4152, 47 p. Available Online
Warner, Kelly L., 2001, Arsenic in glacial drift aquifers and the implication for drinking water--Lower Illinois River Basin: Ground Water, vol. 39, no. 3, May-June 2001, p. 433-442.
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
Warner, K.L., and Arnold, T.L., 2010, Relations that affect the probability and prediction of nitrate concentration in private wells in the glacial aquifer system in the United States: U.S. Geological Survey Scientific Investigations Report 2010-5100, 55 p., plus appendixes. Available Online
Warner, K.L., and Arnold, T.L., 2005, Framework for regional synthesis of water-quality data for the glacial aquifer system in the United States: U.S. Geological Survey Scientific Investigations Report 2005-5223, 6 p. Available Online
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