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NAWQA Publications: Complete Bibliography of all NAWQA Publications (back to categories)


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Showing results 1226 to 1251 of 2097.
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McMahon, P.B., 1995, Some bacteria are beneficial!: U.S. Geological Survey Fact Sheet 102-95, 2 p.  Available Online

McMahon, P.B., 2012, Use of classes based on redox and groundwater age to characterize the susceptibility of principal aquifers to changes in nitrate concentrations, 1991 to 2010: U.S. Geological Survey Scientific Investigations Report 2012-5220, 41 p.  Available Online

McMahon, P.B., and Böhlke, J.K., 1996, Denitrification and mixing in a stream-aquifer system: Effects on nitrate loading to surface water: Journal of Hydrology, vol. 186, no. 1-4, p. 105-128.  doi: 10.1016/S0022-1694(96)03037-5 Available Online

McMahon, P.B., and Böhlke, 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

McMahon, P.B., and Bruce, B.W., 1997, Distribution of terminal electron- accepting processes in an aquifer having multiple contaminant sources: Applied Geochemistry, vol. 12, p. 507-516.  doi: 10.1016/S0883-2927(97)00029-2 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., and Dennehy, K.F., 1999, N2O emissions from a nitrogen-enriched river: Environmental Science & Technology, vol. 33, no. 1, p. 21-25.  doi: 10.1021/es980645n Available Online

McMahon, P.B., Böhlke, J.K., and Bruce, B.W., 1999, Denitrification in marine shales in northeastern Colorado: Water Resources Research, vol. 35, no. 5, May 1999, p. 1629-1642.  doi:10.1029/1999WR900004 Available Online

McMahon, P.B., Böhlke, J.K., and Carney, C.P., 2007, Vertical gradients in water chemistry and age in the northern High Plains aquifer, Nebraska, 2003: U.S. Geological Survey Scientific Investigations Report 2006-5294, 58 p.  Available Online

McMahon, P.B., Böhlke, J.K., and Christenson, S.C., 2004, Geochemistry, radiocarbon ages, and paleorecharge conditions along a transect in the central High Plains aquifer, southwestern Kansas, USA: Applied Geochemistry, vol. 19, p. 1655-1686.  doi: 10.1016/j.apgeochem.2004.05.003 Available Online

McMahon, P.B., Böhlke, 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., Böhlke, 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., Bruce, B.W., Becker, M.F., Pope, L.M., and Dennehy, K.F., 2000, Occurrence of nitrous oxide in the Central High Plains Aquifer,1999: Environmental Science and Technology, vol. 34, no. 23, p. 4873-4877.  doi: 10.1021/es001233t Available Online

McMahon, P.B., Burow K.R., Kauffman, L.J.,Eberts, S.M., Böhlke, 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., Cowdery, T.K., Chapelle, F.H., and Jurgens, B.C., 2009, Redox conditions in selected principal aquifers of the United States: U.S. Geological Survey Fact Sheet 2009-3041, 6 p.  Available Online

McMahon, P.B., Dennehy, K.F., Bruce, B.W., Böhlke, 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

McMahon, P.B., Dennehy, K.F., Bruce, B.W., Gurdak, J.J., and Qi, S.L., 2007, Water-quality assessment of the High Plains aquifer, 1999-2004: U.S. Geological Survery Professional Paper 1749, 136 p.  Available Online

McMahon, P.B., Dennehy, K.F., Michel, R.L, Sophocleous, M.A., Ellett, K.M., and Hurlbut, D.B., 2003, Water movement through thick unsaturated zones overlying the central High Plains aquifer, southwestern Kansas, 2000-2001: U.S. Geological Survey Water-Resources Investigations Report 03-4171, 32 p.  Available Online

McMahon, P.B., Litke, D.W., Paschal, J.E., and Dennehy, K.F., 1994, Ground water as a source of nutrients and atrazine to streams in the South Platte River Basin: American Water Resources Association Water Resources Bulletin, vol. 30, no. 3, p. 521-530.  doi: 10.1111/j.1752-1688.1994.tb03310.x Available Online

McMahon, P.B., Plummer, L.N., Böhlke, J.K., Shapiro, S.D., Hinkle, S.R., 2011, A comparison of recharge rates in aquifers of the United States based on groundwater-age data: Hydrogeology Journal, 22 p., online in advance of print.  doi: 10.1007/s10040-011-0722-5 Available Online

McMahon, P.B., Tindall, J.A., Collins, J.A., and Lull, K.J., 1995, Hydrologic and geochemical effects on oxygen uptake in bottom sediments of an effluent-dominated river: Water Resources Research, vol. 31, no. 10, October 1995, p. 2561-2569.  Available Online

McMahon, Peter B., Lull, Kenneth J., Dennehy, Kevin F., and Collins, Jim A., 1995, Quantity and quality of ground-water discharge to the South Platte River, Denver to Fort Lupton, Colorado, August 1992 through July 1993: U.S. Geological Survey Water-Resources Investigations Report 95-4110, 71 p.  Available Online

McNellis, R.P., Fallon, J.D., and Lee, K.E., 2001, Water-quality assessment of part of the Upper Mississippi River Basin, Minnesota and Wisconsin-- Organochlorine compounds in streambed sediment and fish tissues, 1995-97: U.S. Geological Survey Water-Resources Investigations Report 00-4213, 10 p.  Available Online

McPherson, Ann K., Moreland, Richard S., and Atkins, J. Brian, 2003, Occurrence and distribution of nutrients, suspended sediment, and pesticides in the Mobile River Basin, Alabama, Georgia, Mississippi, and Tennessee, 1999-2001: U.S. Geological Survey Water-Resources Investigations Report 03-4203, 101 p.  Available Online

McPherson, Benjamin F., 1994, National Water-Quality Assessment Program--Southern Florida: U.S. Geological Survey Open-File Report 94-57, 2 p.  Available Online

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