National Water-Quality Assessment (NAWQA) Program - South Platte River Basin
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Bruce, B.W., 1995, Denver's urban groundwater quality: nutrients, pesticides, and volatile organic compounds: U.S. Geological Survey Fact Sheet FS-106-95, 2 p.
Bruce, B.W., and McMahon, P.B., 1996, Shallow Groundwater quality beneath a major urban center: Denver, Colorado, USA: Journal of Hydrology, v. 186, nos. 1-4, p. 129-151.
Bruce, B.W., and McMahon, P.B., 1998, Shallow Groundwater quality of selected land-use/aquifer settings in the South Platte River Basin, Colorado and Nebraska 1993-95: U.S. Geological Survey Water-Resources Investigations Report 97-4229, p. 48.
Chapelle, F.H., McMahon, P.B., Dubrovsky, N.M., Fujii, R.F., Oaksford, E.T., and Vroblesky, D.A., 1995, Deducing the distribution of terminal electron-accepting processes in hydrologically diverse groundwater systems, Water Resources Research, v. 31, no. 2, p. 359-371.
McMahon, P.B., 1995, Some bacteria are beneficial!: U.S. Geological Survey Fact Sheet FS-102-95, 2 p.
McMahon, P.B., and Bruce, B.W., 1997, Distribution of terminal electron-accepting processes in an aquifer having multiple contaminant sources: Applied Geochemistry, v. 12, p. 507-516.
McMahon, P.B., Böhlke, J.K., and Bruce, B.W.,1999, Denitrification in marine shales in northeastern Colorado: Water Resources Research, v. 35, no. 5, p. 1629-1642.
McMahon, P.B., Böhlke, J.K., and Litke, D.W., 1996, Nitrate in the South Platte River alluvial aquifer, Colorado: U.S. Geological Survey Yearbook, p. 39-41.
McMahon, P.B., Bruce, B.A., and Dennehy, K.F., 1993, Origin and fate of high nitrate concentrations in water from South Platte River alluvial aquifer, preliminary results: Proceedings of the 1993 South Platte Conference-Seeking an integrated approach to watershed management in the South Platte Basin, October 27-28, 1993, Fort Collins, Colorado, p. 38.
McMahon, P.B., Crowfoot, R., and Wydoski, D., 1994, Effect of fuel oxidants on the degradation of gasoline components in sediments of the South Platte River alluvial aquifer: Proceedings of the Fifth Annual South Platte Forum--Integrated Watershed Management in the South Platte Basin: Status and Practical Implementation, October 26-27, 1994, Greeley, Colorado, p. 25.