Publications
Below is a list of available Colorado Water Science Center publications and published products.
Filter Total Items: 813
Ground-water quality of the southern High Plains aquifer, Texas and New Mexico, 2001 Ground-water quality of the southern High Plains aquifer, Texas and New Mexico, 2001
In 2001, the U.S. Geological Survey National Water-Quality Assessment Program collected water samples from 48 wells in the southern High Plains as part of a larger scientific effort to broadly characterize and understand factors affecting water quality of the High Plains aquifer across the entire High Plains. Water samples were collected primarily from domestic wells in Texas and eastern...
Authors
Lynne Fahlquist
Biosolids, soils, ground-water, and streambed-sediment data for a biosolids-application area near Deer Trail, Colorado, 1999 Biosolids, soils, ground-water, and streambed-sediment data for a biosolids-application area near Deer Trail, Colorado, 1999
In January 1999, the U.S. Geological Survey began an expanded monitoring program near Deer Trail, Colorado, in cooperation with the Metro Wastewater Reclamation District and the North Kiowa Bijou Groundwater Management District. Monitoring components were biosolids, soils, crops, ground water, and streambed sediments. The monitoring program addresses concerns from the public about...
Authors
Michael R. Stevens, Tracy J.B. Yager, D. B. Smith, J.G. Crock
Changes in nutrient and pesticide concentrations in urban and agricultural areas of the South Platte River Basin, Colorado, Wyoming, and Nebraska, 1994–2000 Changes in nutrient and pesticide concentrations in urban and agricultural areas of the South Platte River Basin, Colorado, Wyoming, and Nebraska, 1994–2000
As part of the National Water-Quality Assessment (NAWQA) Program, the U.S. Geological Survey (USGS) monitored two sites on the main-stem South Platte River? an urban site in Denver and a mixed urban/agricultural site near Kersey?to determine changes in nutrient and pesticide concentrations from 1994 through 2000. Concentrations of nitrate, nitrite, ammonia, and orthophosphorus decreased...
Authors
Lori A. Sprague, Adrienne I. Greve
Rocky Mountain snowpack chemistry at selected sites for 2001 Rocky Mountain snowpack chemistry at selected sites for 2001
Because regional-scale atmospheric deposition data in the Rocky Mountains are sparse, a program was designed by the U.S. Geological Survey, in cooperation with the National Park Service, U.S. Department of Agriculture Forest Service, and other agencies, to more thoroughly determine the chemical composition of precipitation and to identify sources of atmospherically deposited contaminants...
Authors
George P. Ingersoll, M. Alisa Mast, David W. Clow, Leora Nanus, Donald H. Campbell, Heather Handran
Work plan for determining the occurrence of glyphosate, its transformation product AMPA, other herbicide compounds, and antibiotics in midwestern United States streams, 2002 Work plan for determining the occurrence of glyphosate, its transformation product AMPA, other herbicide compounds, and antibiotics in midwestern United States streams, 2002
Changes in herbicide use in the Midwestern United States have been substantial over the last 5 years. Most significant is a tripling in the use of glyphosate (N-[phosphonomethyl]glycin). Over this same time period (19972001), atrazine use increased by 20 percent and acetochlor use increased by 10 percent, while cyanazine use decreased by 99 percent, alachlor use decreased by 70 percent...
Authors
W.A. Battaglin, E.M. Thurman, D.W. Kolpin, E.A. Scribner, Mark W. Sandstrom, K.M. Kuivila
Hydrologic conditions and assessment of water resources in the Turkey Creek watershed, Jefferson County, Colorado, 1998-2001 Hydrologic conditions and assessment of water resources in the Turkey Creek watershed, Jefferson County, Colorado, 1998-2001
The 47.2-square-mile Turkey Creek watershed, in Jefferson County southwest of Denver, Colorado, is relatively steep with about 4,000 feet of relief and is in an area of fractured crystalline rocks of Precambrian age. Water needs for about 4,900 households in the watershed are served by domestic wells and individual sewage-disposal systems. Hydrologic conditions are described on the basis...
Authors
Clifford R. Bossong, Jonathan S. Caine, David I. Stannard, Jennifer L. Flynn, Michael R. Stevens, Janet S. Heiny-Dash
Use of field-scale experiments and reactive transport modeling to evaluate remediation alternatives in streams affected by acid mine drainage Use of field-scale experiments and reactive transport modeling to evaluate remediation alternatives in streams affected by acid mine drainage
No abstract available.
Authors
B. A. Kimball, R.L. Runkel, Katherine Walton-Day
LC/MS analyses of cationic surfactants: Methods and applications LC/MS analyses of cationic surfactants: Methods and applications
No abstract available.
Authors
I. Ferrer, H.F. Schroeder, Edward T. Furlong
Geochemistry of active and passive treatment processes used to treat mine drainage Geochemistry of active and passive treatment processes used to treat mine drainage
No abstract available.
Authors
Katherine Walton-Day
Investigation of water quality in the Great Sand Dunes National Monument and Preserve, Saguache County, Colorado, February 1999 through September 2000: Qualifying for outstanding waters designation Investigation of water quality in the Great Sand Dunes National Monument and Preserve, Saguache County, Colorado, February 1999 through September 2000: Qualifying for outstanding waters designation
Great Sand Dunes National Monument and Preserve is located on the eastern side of the San Luis Valley in south-central Colorado. The monument covers 60.4 square miles in Saguache and Alamosa Counties and lies at the base of the Sangre de Cristo Mountains, where a unique combination of climate, topography, and hydrology has created and maintained the Nation?s tallest inland sand dunes...
Authors
Sheryl A. Ferguson
Evidence for nutrient enrichment of high-elevation lakes in the Sierra Nevada, California Evidence for nutrient enrichment of high-elevation lakes in the Sierra Nevada, California
Long-term measurements (1983-2001) of nutrients and seston in Emerald Lake (Sierra Nevada, California) have revealed ecologically significant patterns. Nitrate, both during spring runoff and during growing seasons, declined from 1983 through 1995. Declining snowmelt nitrate was caused primarily by changes in snow regime induced by the 1987-1992 drought: years with shallow, early melting...
Authors
James O. Sickman, John M. Melack, David W. Clow
Using water-quality profiles to characterize seasonal water quality and loading in the upper Animas River basin, southwestern Colorado Using water-quality profiles to characterize seasonal water quality and loading in the upper Animas River basin, southwestern Colorado
One of the important types of information needed to characterize water quality in streams affected by historical mining is the seasonal pattern of toxic trace-metal concentrations and loads. Seasonal patterns in water quality are estimated in this report using a technique called water-quality profiling. Water-quality profiling allows land managers and scientists to assess priority areas...
Authors
Kenneth J. Leib, M. Alisa Mast, Winfield G. Wright