National Water-Quality Assessment (NAWQA) Program
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Showing results 126 to 151 of 236.
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McMahon, P.B., Bohlke, J.K., and Lehman, T.M., 2004, Vertical gradients in water chemistry and age in the southern High Plains aquifer, Texas, 2002: U.S. Geological Survey Scientific Investigations Report 2004-5053, 53 p. 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
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
Meador, M.R., and Carlisle, D.M., 2011, Relations between altered streamflow variability and fish assemblages in Eastern USA streams: River Research and Applications , 10 p., online in advance of print. doi: 10.1002/rra.1534 Available Online
Meador, M.R., Coles, J.F., and Zappia, Humbert, 2005, Fish assemblage responses to urban intensity gradients in contrasting metropolitan areas: Birmingham, Alabama and Boston, Massachusetts: in Brown, L.R., Gray, R.H., Hughes, R.M., and Meador, M.R., eds., Effects of Urbanization on Stream Ecosystems: AFS Symposium 47, American Fisheries Society, p. 409-423. Available Online
Meador, Michael R., and Carlisle, Daren M., 2009, Predictive models for fish assemblages in eastern U.S. streams: Transactions of the American Fisheries Society 138:725-740, 2009, 16 p. doi: 10.1577/T08-132.1 Available Online
Moore, R.B., Johnston, C.M., Smith, R.A., and Milstead, B., 2011, Source and delivery of nutrients to receiving waters in the Northeastern and Mid-Atlantic regions of the United States: Journal of the American Water Resources Association, online 22Aug2011 in advance of print, 26 p. doi: 10.1111/j.1752-1688.2011.00582.x Available Online
Mueller, David K., Ruddy, Barbara C., and Battaglin, William A., 1997, Logistic model of nitrate in streams of the upper-midwestern United States: Journal of Environmental Quality, vol. 26, no.5, p. 1223-1230. Available Online
Mullaney, John R., and Grady, Stephen J., 1997, Hydrogeology and water quality of a surficial aquifer underlying an urban area, Manchester, Connecticut: U.S. Geological Survey Water-Resources Investigations Report 97-4195, 40 p. Available Online
Mullaney, John R., Schwarz, Gregory E., and Trench, Elaine C. Todd, 2002, Estimation of nitrogen yields and loads from basins draining to Long Island Sound, 1988-98: U.S. Geological Survey Water-Resources Investigations Report 02-4044, 84 p. Available Online
New England Interstate Water Pollution Control Commission (NEIWPCC), 2004, New England SPARROW water quality model: IWR (Interstate Water Report newsletter), vol. 1, no. 3, Summer 2004, p. 6-7.
Nolan, B.T., and Ruddy, B.C., 1996, Nitrate in ground waters of the United States--Assessing the risk: U.S. Geological Survey Fact Sheet 092-96, 4 p. Available Online
Nolan, B.T., Bayless, E.R., Green, C.T., Garg, S., Voss, F.D., Lampe, D.C., Barbash, J.E., Capel, P.D. and Bekins, B.A., 2005, Evaluation of unsaturated-zone solute-transport models for studies of agricultural chemicals: U.S. Geological Survey Open-File Report 2005-1196, 16 p. Available Online
Nolan, B.T., Malone, RW., Gronberg, J.A., Thorp, K.R., and Ma, L., 2011, Verifiable metamodels for nitrate losses to drains and groundwater in the Corn Belt, USA: Environmental Science and Technology, online in advance of print, 8 p. doi: 10.1021/es202875e Available Online
Nolan, Bernard T., 1998, Modeling approaches for assessing the risk of nonpoint- source contamination of ground water: U.S. Geological Survey Open-File Report 98-531, 15 p. Available Online
Nolan, Bernard T., 2001, Relating nitrogen sources and aquifer susceptibility to nitrate in shallow ground waters of the United States: Ground Water, vol. 39, no. 2, p. 290-299. 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
Nolan, Bernard T., and Stoner, Jeffrey D., 2000, Nutrients in groundwaters of the conterminous United States, 1992-1995: Environmental Science and Technology, vol. 34, no. 7, p. 1156-1165. doi: 10.1021/es9907663 Available Online
Nolan, Bernard T., Baehr, Arthur L., and Kauffman, Leon J., 2003, Spatial variability of groundwater recharge and its effect on shallow groundwater quality in southern New Jersey: Vadose Zone Journal, vol. 2, p. 677-691. Available Online
Nolan, Bernard T., Hitt, Kerie J., and Ruddy, Barbara C., 2002, Probability of nitrate contamination of recently recharged groundwaters in the conterminous United States: Environmental Science & Technology, vol. 36, no. 10, p. 2138-2145. doi: 10.1021/es0113854 Available Online
Nolan, Bernard T., Puckett, Larry J., Ma, Liwang, Green, Christopher T., Bayless, Randall, and Malone, Robert W., 2010, Predicting unsaturated zone nitrogen mass balances in agricultural settings of the United States: Journal of Environmental Quality, vol. 39, no. 3, p. 1051-1065. doi: 10.2134/jeq2009.0310 Available Online
Nolan, Bernard T., Ruddy, Barbara C., Hitt, Kerie J., and Helsel, Dennis R., 1998, A National look at nitrate contamination of ground water: Water Conditioning & Purification, vol. 39, no. 12, January 1998, p. 76-79. Available Online
Nolan, Bernard T., Ruddy, Barbara C., Hitt, Kerie J., and Helsel, Dennis R., 1997, Risk of nitrate in ground waters of the United States-- A national perspective: Environmental Science and Technology, vol. 31, no. 8, p. 229-236. doi: 10.1021/es960818d Available Online
Nowell, L.H., Crawford, C.G., Gilliom, R.J., Nakagaki, N., Stone, W.W., Thelin, G.P., Wolocks, D.M., 2009, Regression models for explaining and predicting concentrations of organochlorine pesticides in fish from streams in the United States: Environmental Toxicology and Chemistry, vol. 28, no. 6, p. 1346-1358. doi: 10.1897/08-508.1 Available Online
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