Hal has over 40 years of experience in engineering and in management of environmental projects and programs in industry, government, and consulting. He has a B.A. degree in physics and an M.S. degree in environmental studies.  Hal joined Bison in 1987. Hal retired from Bison in 2014 and now serves as a professional consultant on special projects.

Hal has been the project manager for many PSD and NSR permit applications for power generation stations, the lime manufacturing industry, petroleum refineries, a coal-liquefaction facility, compressor stations, wood products facilities, and many other industries. As a project manager, he worked on numerous emission inventories, Best Available Control Technology analyses, ambient monitoring networks, and source tests.  Hal is also an expert on air quality dispersion modeling.

Hal was formerly Chief of the Montana Air Quality Bureau and, in that position, gained extensive experience in air quality permitting, air quality monitoring and dispersion modeling. He is highly knowledgeable about air quality regulations and air quality permitting requirements. Hal has presented professional papers to the Pacific Northwest International Section of the Air and Waste Management Association, the National Lime Association and to a host of local, state, and regional organizations on air quality topics. His extensive experience and knowledge in the field provide a foundation for Bison’s excellence in consulting services.

Hal’s passions outside of work include volunteering for Toys for Tots, golfing and skiing as fast as he can go.