Dan Umfleet

Dan Umfleet

Dan has more than three decades of environmental engineering experience. He established Barr’s Ann Arbor office in 1996 and has managed a wide range of projects for the company’s Michigan clients. Dan’s projects have included industrial wastewater treatment evaluation and design, soil and groundwater investigations, feasibility studies, remedial action plans, and environmental review and permitting. He has managed the mitigation of vapor intrusion, soil, groundwater, surface water, and sediment exposure pathways at complicated sites and has negotiated numerous “no further action” approval letters. Dan has also managed per- and polyfluoroalkyl substances (PFAS) consulting services to address drinking-water concerns.



Vice President
Senior Environmental Engineer


MS, Civil and Environmental Engineering, Utah State University

BS, Engineering, Southern Illinois University


Barr Engineering Co.
3005 Boardwalk Drive
Suite 100
Ann Arbor, MI 48108
Phone: +1 734-922-4432

Related projects

Assessment and remediation of former dump site on university campus
Environmental review and permitting for natural-gas-distribution projects