Randall Bayless
Randall is a Research Hydrologist in the RGEG program and Groundwater Specialist for the Indiana-Kentucky Water Science Center; he has worked for the science center since 1989. He also is an Adjunct Assistant Professor at Indiana University - Purdue University Indianapolis.
Projects at USGS have covered a wide range of interests including
- karst hydrology,
- isotope geochemistry,
- Lake Michigan,
- horizontal flow meter technologies,
- pesticide and nutrient fate,
- unsaturated zone instrumentation and transport modeling,
- high pH (slag) and low pH (coal mine) settings,
- surface and borehole geophysics, and
- wetland hydrology.
Education
Attended Wabash College, Purdue University (B.S. 1983), Indiana University (M.S. 1987, Ph.D. 1994).
Received a B.S. from Purdue University with a geology major and mathematics minor.
Received a M.S. from Indiana University with a major in hydrogeology and a minor in numerical methods. The M.S. thesis used numerical modeling to verify field evidence of ice-sheet surging during the Pleistocene epoch.
Received a Ph.D. from Indiana University with a major in hydrogeology and a minor in geochemistry. The Ph.D. dissertation used hydraulic and geochemical modeling to determine that hydrated iron-sulfate minerals were responsible for acute acid-mine drainage events.
Horizontal Borehole Flowmeters
Horizontal borehole flowmeters may provide opportunities to measure the rate and direction of groundwater flow and the advective transport of dissolved and neutrally buoyant contaminants. Optical, acoustic, thermal, and chemical technologies are being evaluated. Research is directed toward defining the limits of each technology and the environmental and hydrologic conditions that are best suited for each tool. Testing has been done in field settings and laboratory aquifer simulators.
Science and Products
Effects of highway-deicer application on ground-water quality in a part of the Calumet Aquifer, northwestern Indiana
Use of isotopes to identify sources of ground water, estimate ground-water-flow rates, and assess aquifer vulnerability in the Calumet region of northwestern Indiana and northeastern Illinois
An evaluation of borehole flowmeters used to measure horizontal ground-water flow in limestones of Indiana, Kentucky, and Tennessee, 1999
Atrazine retention and degradation in the vadose zone at a till plain site in central Indiana
Isotope hydrology dynamics of riverine wetlands in the Kankakee Watershed, Indiana
Analysis of atrazine and four degradation products in the pore water of the vadose zone, central Indiana
Environmental setting and natural factors and human influences affecting water quality in the White River Basin, Indiana
A Study of Natural and Restored Wetland Hydrology
Hydrology and geochemistry of a slag-affected aquifer and chemical characteristics of slag-affected ground water, northwestern Indiana and northeastern Illinois
Water quality of selected streams in Montgomery County, Indiana, 1996
Hydrogeology and simulated ground-water flow through the unconsolidated aquifers of northeastern St. Joseph County, Indiana
Ground-water quality in northeastern St. Joseph County, Indiana
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
Effects of highway-deicer application on ground-water quality in a part of the Calumet Aquifer, northwestern Indiana
Use of isotopes to identify sources of ground water, estimate ground-water-flow rates, and assess aquifer vulnerability in the Calumet region of northwestern Indiana and northeastern Illinois
An evaluation of borehole flowmeters used to measure horizontal ground-water flow in limestones of Indiana, Kentucky, and Tennessee, 1999
Atrazine retention and degradation in the vadose zone at a till plain site in central Indiana
Isotope hydrology dynamics of riverine wetlands in the Kankakee Watershed, Indiana
Analysis of atrazine and four degradation products in the pore water of the vadose zone, central Indiana
Environmental setting and natural factors and human influences affecting water quality in the White River Basin, Indiana
A Study of Natural and Restored Wetland Hydrology
Hydrology and geochemistry of a slag-affected aquifer and chemical characteristics of slag-affected ground water, northwestern Indiana and northeastern Illinois
Water quality of selected streams in Montgomery County, Indiana, 1996
Hydrogeology and simulated ground-water flow through the unconsolidated aquifers of northeastern St. Joseph County, Indiana
Ground-water quality in northeastern St. Joseph County, Indiana
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.