Norman E Spahr

• Effects of wastewater effluent on the South Platte River from Littleton to Denver
• Estimation of evaporation from Ned Wilson Lake, Flat Tops Wilderness Area, Colorado
• Reservoir evaporation in central Colorado
• Selected hydrologic data for the south Platte River through Denver, Colorado
• Variations in climatic characteristics as related to evapotranspiration in South Park, central Park County, Colorado
• Water quality at basic fixed sites in the Upper Colorado River Basin National Water-Quality Assessment study unit, October 1995-September 1998
• Water quality in the Upper Colorado River Basin, Colorado, 1996-98
• Water-quality characteristics of the Slate and East rivers, Colorado, during the winter recreational season, December 1996