Katie Walton-Day
Katie is a Research Hydrologist with the USGS Colorado Water Science Center.
Katie is a research hydrologist and has worked at the U.S. Geological Survey located in Denver, Colorado for over 35 years. During this time her research has primarily focused on understanding the sources and mobility of trace metals associated with hard rock and uranium mineral deposits primarily in the western United States. A primary goal of her research is to provide science-based information to facilitate decisions about remediation in areas contaminated by historic mining practices. Recently she has begun developing communication products to broaden the audience for USGS scientific studies related to the environmental effects of uranium mining in the Grand Canyon region. Finally, her research has expanded into understanding the effects of harmful algal blooms in Colorado Reservoirs.
Professional Experience
1981-1983 – Exploration Geochemist, Anaconda Minerals Company
1983-1991 – Physical Scientist, U.S. Geological Survey
1991-1996 – Hydrologist, U.S. Geological Survey
1996-Present – Research Hydrologist, U.S. Geological Survey
Education and Certifications
PhD. Geology Colorado School of Mines, 1991
MS Geology Colorado School of Mines, 1985
BA Geology Smith College, 1981
Science and Products
Use of field-scale experiments and reactive transport modeling to evaluate remediation alternatives in streams affected by acid mine drainage
Geochemistry of active and passive treatment processes used to treat mine drainage
Assessment of metal loads in watersheds affected by acid mine drainage by using tracer injection and synoptic sampling: Cement Creek, Colorado, USA
Effects of acidic recharge on groundwater at the St. Kevin Gulch site, Leadville, Colorado
Effects of fluvial tailings deposits on soils and surface- and ground-water quality, and implications for remediation — Upper Arkansas River, Colorado, 1992–96
U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 1 (Part A)
The interaction of natural organic matter with iron in a wetland (Tennessee Park, Colorado) receiving acid mine drainage
Geochemistry of the processes that attenuate acid mine drainage in wetlands
Physical and chemical characteristics of Terrace Reservoir, Conejos County, Colorado, May 1994 through May 1995
Physical and chemical characteristics of Terrace Reservoir, Conejos County, Colorado, May 1994 through May 1995; interim report
National water summary on wetland resources
US Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Use of field-scale experiments and reactive transport modeling to evaluate remediation alternatives in streams affected by acid mine drainage
Geochemistry of active and passive treatment processes used to treat mine drainage
Assessment of metal loads in watersheds affected by acid mine drainage by using tracer injection and synoptic sampling: Cement Creek, Colorado, USA
Effects of acidic recharge on groundwater at the St. Kevin Gulch site, Leadville, Colorado
Effects of fluvial tailings deposits on soils and surface- and ground-water quality, and implications for remediation — Upper Arkansas River, Colorado, 1992–96
U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 1 (Part A)
The interaction of natural organic matter with iron in a wetland (Tennessee Park, Colorado) receiving acid mine drainage
Geochemistry of the processes that attenuate acid mine drainage in wetlands
Physical and chemical characteristics of Terrace Reservoir, Conejos County, Colorado, May 1994 through May 1995
Physical and chemical characteristics of Terrace Reservoir, Conejos County, Colorado, May 1994 through May 1995; interim report
National water summary on wetland resources
US Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.