Publications
Below is a list of available Colorado Water Science Center publications and published products.
Filter Total Items: 805
Snowpack chemistry at selected sites in northwestern Colorado during spring 1995 Snowpack chemistry at selected sites in northwestern Colorado during spring 1995
Samples of the alpine and subalpine snowpack were collected in and near the headwater basins of the Yampa River in northwestern Colorado during maximum annual accumulation of snowpack in spring 1995. Sampling protocol at seven selected sites at more than 2,500 meters above sea level divided the snowpack into two distinct strata to enable separate chemical analyses of upper and lower...
Authors
G.P. Ingersoll
The geochemical cycling of stable Pb, 210Pb, and 210Po in seasonally anoxic Lake Sammamish, Washington, USA The geochemical cycling of stable Pb, 210Pb, and 210Po in seasonally anoxic Lake Sammamish, Washington, USA
The geochemical processes controlling the behavior of stable Pb, 210Pb, and 210po in seasonally anoxic Lake Sammamish, Washington were identified from water column distributions and box model calculations. Total (sum of dissolved and particulate) inventories of stable Pb, 210Pb, and 210Po increased in the whole lake during the latter part of the oxic stage of the lake and were attributed...
Authors
Laurie Balistrieri, James Murray, Barbara Paul
Fish communities in the plains region of the South Platte River, August 1993 and 1994 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...
Authors
Cathy Tate, L.M. Martin
Spatial data in geographic information system format on agricultural chemical use, land use, and cropping practices in the United States 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...
Authors
William Battaglin, Donald Goolsby
Review of sediment data in the South Platte River Basin, Colorado, 1980-92 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...
Authors
Janet Heiny
Processes controlling the chemistry of two snowmelt‐dominated streams in the Rocky Mountains 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...
Authors
Donald Campbell, David Clow, George Ingersoll, M. Mast, Norman Spahr, John Turk
Interpreting spatial profiles of concentration in acid mine drainage streams Interpreting spatial profiles of concentration in acid mine drainage streams
No abstract available.
Authors
R. E. Broshears, Briant Kimball, Robert Runkel
Occurrence and distribution of pesticides in streams of the Midwestern United States Occurrence and distribution of pesticides in streams of the Midwestern United States
No abstract available.
Authors
D. Goolsby, William Battaglin
Transport of reacting solutes in rivers and streams 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...
Authors
Robert Runkel, Kenneth Bencala
Some bacteria are beneficial! 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 McMahon
Denver's urban ground-water quality: Nutrients, pesticides, and volatile organic compounds Denver's urban ground-water quality: Nutrients, pesticides, and volatile organic compounds
A recent study by the U.S. Geological Survey (USGS) under the National Water-Quality Assessment (NAWQA) program characterized the ground-water quality in a part of the Denver, Colorado, metropolitan area. The study provides an assessment of water-quality conditions in an alluvial aquifer that drains into the South Platte River. Thirty wells randomly distributed in residential, commercial...
Authors
Breton Bruce