Publications
Below is a list of available Colorado Water Science Center publications and published products.
Filter Total Items: 807
Semi-quantitative evaluation of fecal contamination potential by human and ruminant sources using multiple lines of evidence Semi-quantitative evaluation of fecal contamination potential by human and ruminant sources using multiple lines of evidence
Protocols for microbial source tracking of fecal contamination generally are able to identify when a source of contamination is present, but thus far have been unable to evaluate what portion of fecal-indicator bacteria (FIB) came from various sources. A mathematical approach to estimate relative amounts of FIB, such as Escherichia coli, from various sources based on the concentration...
Authors
D. M. Stoeckel, Erin A. Stelzer, Stogner, David P. Mau
2009 Monitoring and tracking wet nitrogen deposition at Rocky Mountain National Park 2009 Monitoring and tracking wet nitrogen deposition at Rocky Mountain National Park
No abstract available.
Authors
Kristi Morris, Alisa Mast, Greg Wetherbee, Jill Baron, Curt Taipale, Tamara Blett, David Gay, Eric Richer
Assessing possible visitor-use impacts on water quality in Yosemite National Park, California Assessing possible visitor-use impacts on water quality in Yosemite National Park, California
There is concern that visitor-use associated activities, such as bathing, dish washing, wastewater production, and stock animal use near lakes and streams, could cause degradation of water quality in Yosemite National Park. A study was conducted during 2004–2007 to assess patterns in nutrient and Escherichia coli (E. coli) concentrations in the Merced and Tuolumne Rivers and characterize...
Authors
David W. Clow, Rachael S. Peavler, Jim Roche, Anna K. Panorska, James M. Thomas, Steve Smith
Towards identifying the next generation of superfund and hazardous waste site contaminants Towards identifying the next generation of superfund and hazardous waste site contaminants
Background This commentary evolved from a workshop sponsored by the National Institute of Environmental Health Sciences titled "Superfund Contaminants: The Next Generation" held in Tucson, Arizona, in August 2009. All the authors were workshop participants. Objectives Our aim was to initiate a dynamic, adaptable process for identifying contaminants of emerging concern (CECs) that are...
Authors
Wendell P. Ela, David L. Sedlak, Morton A. Barlaz, Heather F. Henry, Derek C.G. Muir, Deborah L. Swackhamer, Eric J. Weber, Robert G. Arnold, P. Lee Ferguson, Jennifer A. Field, Edward T. Furlong, John P. Giesy, Rolf U. Halden, Tala Henry, Ronald A. Hites, Keri C. Hornbuckle, Philip H. Howard, Richard G. Luthy, Anita K. Meyer, A. Eduardo Saez, Frederick S. vom Saal, Chris D. Vulpe, Mark R. Wiesner
Streamflow gain-loss characteristics of Elkhead Creek downstream from Elkhead Reservoir near Craig, Colorado, 2009 Streamflow gain-loss characteristics of Elkhead Creek downstream from Elkhead Reservoir near Craig, Colorado, 2009
The U.S. Geological Survey (USGS), in cooperation with the Colorado Water Conservation Board, the Upper Colorado River Endangered Fish Recovery Program (UCREFRP), Colorado Division of Water Resources, and City of Craig studied the gain-loss characteristics of Elkhead Creek downstream from Elkhead Reservoir to the confluence with the Yampa River during August through October 2009. Earlier
Authors
Barbara C. Ruddy
Digital map of the aquifer boundary for the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming Digital map of the aquifer boundary for the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
This digital data set represents the extent of the High Plains aquifer in the central United States. The extent of the High Plains aquifer covers 174,000 square miles in eight states: Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This data set represents a compilation of information from digital and paper sources and personal communication. This...
Authors
Sharon Qi
Rocky Mountain snowpack physical and chemical data for selected sites, 2009 Rocky Mountain snowpack physical and chemical data for selected sites, 2009
The Rocky Mountain Snowpack program established a network of snowpack-sampling sites in the Rocky Mountain region from New Mexico to Montana to monitor the chemical content of snow and to understand the effects of regional atmospheric deposition. The U.S. Geological Survey, in cooperation with the National Park Service; the U.S. Department of Agriculture Forest Service; the Colorado...
Authors
George P. Ingersoll, M. Alisa Mast, James M. Swank, Chelsea D. Campbell
Probability and volume of potential postwildfire debris flows in the 2010 Fourmile burn area, Boulder County, Colorado Probability and volume of potential postwildfire debris flows in the 2010 Fourmile burn area, Boulder County, Colorado
This report presents a preliminary emergency assessment of the debris-flow hazards from drainage basins burned by the Fourmile Creek fire in Boulder County, Colorado, in 2010. Empirical models derived from statistical evaluation of data collected from recently burned basins throughout the intermountain western United States were used to estimate the probability of debris-flow occurrence...
Authors
Barbara C. Ruddy, Michael R. Stevens, Kristine Verdin
Geographic information system datasets of regolith-thickness data, regolith-thickness contours, raster-based regolith thickness, and aquifer-test and specific-capacity data for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counti Geographic information system datasets of regolith-thickness data, regolith-thickness contours, raster-based regolith thickness, and aquifer-test and specific-capacity data for the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counti
These datasets were compiled in support of U.S. Geological Survey Scientific-Investigations Report 2010-5082-Hydrogeology and Steady-State Numerical Simulation of Groundwater Flow in the Lost Creek Designated Ground Water Basin, Weld, Adams, and Arapahoe Counties, Colorado. The datasets were developed by the U.S. Geological Survey in cooperation with the Lost Creek Ground Water...
Authors
L. Rick Arnold
The quality of our nation's waters: Nutrients in the nation's streams and groundwater, 1992-2004 The quality of our nation's waters: Nutrients in the nation's streams and groundwater, 1992-2004
National Findings and Their Implications Although the use of artificial fertilizer has supported increasing food production to meet the needs of a growing population, increases in nutrient loadings from agricultural and, to a lesser extent, urban sources have resulted in nutrient concentrations in many streams and parts of aquifers that exceed standards for protection of human health and...
Authors
Neil M. Dubrovsky, Karen R. Burow, Gregory M. Clark, JoAnn M. Gronberg, Pixie A. Hamilton, Kerie J. Hitt, David K. Mueller, Mark D. Munn, Bernard T. Nolan, Larry J. Puckett, Michael G. Rupert, Terry M. Short, Norman E. Spahr, Lori A. Sprague, William G. Wilber
Macroinvertebrate and algal community sample collection methods and data collected at selected sites in the Eagle River watershed, Colorado, 2000-07 Macroinvertebrate and algal community sample collection methods and data collected at selected sites in the Eagle River watershed, Colorado, 2000-07
State and local agencies are concerned about the effects of increasing urban development and human population growth on water quality and the biological condition of regional streams in the Eagle River watershed. In response to these needs, the U.S. Geological Survey initiated a study in cooperation with the Colorado River Water Conservation District, Eagle County, Eagle River Water and...
Authors
Robert E. Zuellig, James F. Bruce
Analytical results for municipal biosolids samples from a monitoring program near Deer Trail, Colorado (U.S.A.), 2009 Analytical results for municipal biosolids samples from a monitoring program near Deer Trail, Colorado (U.S.A.), 2009
Since late 1993, Metro Wastewater Reclamation District of Denver, a large wastewater treatment plant in Denver, Colo., has applied Grade I, Class B biosolids to about 52,000 acres of nonirrigated farmland and rangeland near Deer Trail, Colo., U.S.A. In cooperation with the Metro District in 1993, the U.S. Geological Survey began monitoring groundwater at part of this site. In 1999, the...
Authors
J.G. Crock, D. B. Smith, T. J. B. Yager, C. J. Berry, M. G. Adams