Publications
Below is a list of available Colorado Water Science Center publications and published products.
Filter Total Items: 754
Fish communities in the plains region of the South Platte River, August 1993 and 1994
As part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) program, fish communities were sampled at five sites in the South Platte River from Denver, Colo rado, to North Platte, Nebraska. The number and composition of fish species changed from upstream to downstream in the South Platte River. The total number of fish collected at each site varied among sites and from year to
Authors
Cathy M. Tate, L.M. Martin
Spatial data in geographic information system format on agricultural chemical use, land use, and cropping practices in the United States
The spatial data in geographic information system format described in this report consist of estimates for all counties in the conterminous United States of the annual use of 96 herbicides in 1989; annual sales of nitrogen fertilizer, in tons, for 1985-91; and agricultural expenses, land use, chemical use, livestock holdings, and cropping practices in 1987. The source information, originally in ta
Authors
William A. Battaglin, Donald A. Goolsby
Review of sediment data in the South Platte River Basin, Colorado, 1980-92
Suspended-sediment transport and its relation to water quality are important issues in the South Platte River Basin. Most sediment enters the South Platte River during snowmelt runoff from March to June. The suspended sediment varies by particle size, concentration, and load. Suspended-sediment data in the South Platte River for water years 1980-92 are limited; therefore, only generalizations can
Authors
Janet S. Heiny
Processes controlling the chemistry of two snowmelt‐dominated streams in the Rocky Mountains
Time‐intensive discharge and chemical data for two alpine streams in the Loch Vale watershed, Colorado, were used to identify sources of runoff, flow paths, and important biogeochemical processes during the 1992 snowmelt runoff season. In spite of the paucity of soil cover the chemical composition of the streams is regulated much as in typical forested watersheds. Soils and other shallow groundwat
Authors
Donald H. Campbell, David W. Clow, George P. Ingersoll, Alisa Mast, Norman E. Spahr, John T. Turk
Interpreting spatial profiles of concentration in acid mine drainage streams
No abstract available.
Authors
R. E. Broshears, Briant A. Kimball, Robert L. Runkel
Occurrence and distribution of pesticides in streams of the Midwestern United States
No abstract available.
Authors
D. A. Goolsby, William A. Battaglin
Transport of reacting solutes in rivers and streams
In this chapter we discuss the major processes affecting solutes in rivers and streams. Here a solute is generally defined as any substance or entity that is transported downstream by the flowing waters. Under this definition, solutes may be pollutants, such as pesticides and hydrocarbons, or naturally occurring substances such as dissolved gases, nutrients, and trace elements. Study of the proces
Authors
Robert L. Runkel, Kenneth E. Bencala
Characterization of selected radionuclides in sediment and surface water in Standley Lake, Great Western Reservoir, and Mower Reservoir, Jefferson County, Colorado, 1992
Lake sediment and surface water from Standley Lake, Great Western Reservoir, and Mower Reservoir, near Denver, Colorado, were sampled and analyzed for selected radionuclides during August through October, 1992. Sample concentrations were summarized and compared to results from a study conducted in 1983-84. Median plutonium-239,240 (239,240Pu) concentrations in lake-sediment grab samples from Stan
Authors
D. W. Clow, D. A. Johncox
Nutrients in the South Platte River, 1993-95
The U.S. Geological Survey (USGS), as part of its National Water-Quality Assessment (NAWQA) program has been collecting and analyzing water samples from streams in the South Platte River Basin in Colorado, Nebraska, and Wyoming to characterize the water-quality conditions within the basin. Nutrients (nitrogen and phosphorus compounds) have been a focus of this sampling effort because of their pote
Authors
David W. Litke
Bibliography, indices, and data sources of water-related studies, upper Colorado River basin, Colorado and Utah, 1872-1995
As part of the U.S. Geological Survey's National Water-Quality Assessment Program, current water-quality conditions in the Upper Colorado River Basin in Colorado and Utah are being assessed. This report is an initial effort to identify and compile information on water-related studies previously conducted in the basin and consists of a bibliography, coauthor and subject indices, and sources of avai
Authors
N.J. Bauch, L.E. Apodaca
Composition of precipitation, bulk deposition, and runoff at a granitic bedrock catchment in the Loch Vale watershed, Colorado, USA
The chemical composition of precipitation, bulk deposition, and runoff from a 30-m2 granitic bedrock catchment in the Loch Vale Watershed in Rocky Mountain National Park was monitored over a 6-week period in the summer of 1994 to determine the importance of dry deposition in the alpine zone. Concentrations of acid anions and base cations were 1.1 to 4 times higher in bulk deposition than in precip
Authors
David W. Clow, Alisa Mast
Some bacteria are beneficial!
Most people would agree that bacteria usually spell trouble where the quality of drinking water is con cerned. However, recent studies conducted by the U.S. Geological Survey (USGS) under the National Water-Quality Assessment (NAWQA) program have shown that some bacteria can improve the quality of water.
Authors
Peter B. McMahon