| Ph.D. University of Wisconsin, Madison. 1976 (Soil Genesis, Classification & Morphology) |
| M.S. University of Wisconsin, Madison. 1972 (Soil Genesis, Classification & Morphology) |
| B. S. University of Wisconsin, Madison. 1971 (Natural Resources) (Honors) |
| 1991 - Present Professor and Extension Soil Scientist, University of Minnesota
|
| 1986 - Present Director, Center for Agricultural Impacts on Water Quality, University of Minnesota |
| 1985 - 1991 Assoc. Professor and Extension Soil Scientist, University of Minnesota |
| 1983 - 1985 Asst. Professor and Extension Soil Scientist, University of Minnesota
|
| 1978 - 1983 Asst. Professor, University of Minnesota (100% extension) |
| 1976 - 1978 District Soil Scientist, Hennepin Soil and Water Conservation District. |
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