National Water-Quality Assessment (NAWQA) Program - South Platte River Basin
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Bruce, B.W., Litke, D.W., Kimbrough, R.A., and McMahon, P.B., 1994, Comparison of surface-and groundwater nutrient concentrations between urban and agricultural land-use settings, South Platte River Basin, Colorado, Proceedings Abstracts, American Water Resources Association's Symposium on the National Water-Quality Assessment (NAWQA) Program--November 7-9, 1994, Chicago, Illinois, U.S. Geological Survey Open-File Report 94-397, p. 6.
McMahon, P.B., and Böhlke, J.K., 1995, Effect of Groundwater/surface-water interactions on nitrate concentrations in discharge from the South Platte River alluvial aquifer system, Colorado: Proceedings of the First International Conference on Water Resources Engineering, August 14-18, 1995, San Antonio, Texas, p. __.
McMahon, P.B., and Dennehy, K.F., 1997, Nitrous oxide emissions from the Platte River: An indicator of nitrogen transformations in a stream-aquifer system, First Annual Conference on Natural Resources of the Missouri River Basin, January 14-16, 1997, Columbia, Missouri.
McMahon, P.B., Dennehy, K.F., and Lull, K.J., 1992, Effect of Groundwater discharge on dissolved oxygen concentrations in the South Platte River at low flow: Proceedings of the 1992 South Platte Conference - Defining Ecological and Sociological Integrity for the South Platte River Basin, October 27-28, 1992, Fort Collins, Colorado, p.79.