GEORGE E. GROSCHEN Hydrologist and LIRB NAWQA Chief

EDUCATION
University of Minnesota -- BA Philosophy, 1978
University of Minnesota -- MSc Geology, 1981

Thesis: Geochemical Interaction of Lake and Ground water, Williams Lake, Hubbard County. Minnesota

USGS Training:

• Modeling Ground Water Flow 1980
• Lake Hydrogeochemistry Field Workshop, 1982
• Modeling Transport of Ground-Water Solutes, 1982
• Parameter Estimation Techniques for Ground-Water Models, 1984
• Advanced Modeling of Ground-Water Transport, 1985
• Soulte Transport for Field Invesigations Workshop, 1986
• Ground Water Flow Systems in Secondary Permeability Terranes, 1988
• Analysis and Interpretation of Solid-Phase Data in Hydrologic Investigations, 1989
• Geochemical Modeling Workshop, 1990

YEARS WITH THE USGS -- 21

AREAS OF EXPERTISE
Aqueous geochemistry, geochemical modeling, limnology, stable isotope hydrology, ground-water flow and transport modeling, 3-D geologic and hydrologic data visualization, borehole geophysics, geographic information systems, project management

PROFESSIONAL AFFILIATIONS
American Geophysical Union

CURRENT PROJECTS
Lower Illinois River Basin NAWQA Study-unit Chief

PUBLICATIONS

Groschen, G. E., and Alexander, E. C., Jr., Geochemistry of Williams Lake, Hubbard County, Minnesota: American Geophysical Union Proceedings of Meetings, 1 p.

Labaugh, J. W., Groschen, G. E., and Winter, T. C., 1981, Limnological and geochemical survey of Williams Lake, Hubbard County, Minnesota: U.S. Geological Survey Water-Resources Investigations Report, 38 p.

Groschen, G. E., 1985, Simulated effects of projected pumping on the availability of freshwater in the Evangeline aquifer in an area southwest of Corpus Christi, Texas: U.S. Geological Survey Water-Resources Investigations Report 85-4182, 103 p.

Groschen, G. E., 1993, Simulation of ground-water flow and the movement of saline water in the Hueco Bolson aquifer, El Paso, Texas and adjacent areas: U.S. Geological Survey open-file report 92-171.

Groschen, G. E., 1990, Simulation of the effects of density, aquifer properties,and well interference on upconing of saline water to wells: abstract 1990 Texas section of the American Water Resources Association conference, Austin , Texas, 1990

Groschen, G. E., 1994, Analysis of data from test-well sites along the downdip limit of freshwater in the Edwards aquifer, San Antonio, Texas, 1985-87: U.S. Geological Survey Water-Resources Investigation Report 93-4100

Groschen, G. E., 1996, Hydrogeologic factors that affect the flowpath of water in selected zones of the Edwards aquifer, San Antonio region, Texas: U.S. Geological Survey Water-Resources Investigations Report 96-4096

Groschen, G. E. and Paul M. Buszka, 1997, Hydrogeologic framework and geochemistry of the Edwards aquifer saline-water zone, south-central Texas: U.S. Geological Survey Water-Resources Investigations Report 97-4133

Groschen, G.E., Harris, M.A., King, R.B., Terrio, P.J., and Warner, K.L., 2000, Water Quality in the Lower Illinois River Basin, Illinois, 1995-98, U.S. Geological Survey Circular Circular 1209.

Groschen, G.E., Arnold, T.L., Harris, M.A., Dupre, D.H., Fitzpatrick, F.A., Scudder, B.C., Morrow, W.S., Terrio, P.J., Warner, K.L., and Murphy, E.A., 2004, Water Quality in the Upper Illinois River Basin, Illinois, Indiana, and Wisconsin, 1999.2001, U.S. Geological Survey Circular 1230.

Groschen, G.E. and King, R.B., 2005, Evaluation of Measurements Collected with Multi-Parameter Continuous Water-Quality Monitors in Selected Illinois Streams, 2001.03, U.S. Geological Survey Scientific Investigations Report 2005-5060.