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Mike Hansel

Principal Emeritus, Senior Chemical Engineer

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Mike Hansel has over four decades of experience related to air quality, waste, and water quality issues. He specializes in managing complex air- and water-permitting projects and resolving air-quality compliance issues for mining, fuels, and industrial facilities. His combined regulatory and industry experience gives him both a balanced perspective and insight on compliance and permitting issues. In addition to his years at Barr, Mike served as manager of environmental engineering at the Flint Hills Resources refinery in Rosemount, Minnesota. He also worked for the Minnesota Pollution Control Agency for 12 years in the air and water quality divisions and the Superfund unit.


(952) 832-2878


MS, Chemical Engineering, University of Wisconsin - Madison

BS, Chemical Engineering, University of Minnesota - Twin Cities


Barr Engineering Co.
4300 MarketPointe Drive
Minneapolis, MN 55435

Phone: 952-832-2600
Fax: 952-832-2601
Toll free: 800-632-2277