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Thomas Slawski, PhD, SEWRPC – Chief Biologist

Dr. Slawski has over 23 years of experience in aquatic ecology specializing in stream habitat and fisheries assessments, design and restoration techniques. His research has focused on understanding the impacts of physical and hydrological alterations associated with land-use development and ways to mitigate those impacts to improve or restore fish and aquatic life. This experience is used to assist agencies, organizations and communities in resolving water resource problems and issues.

Thomas has been employed at the Southeastern Wisconsin Regional Planning Commission since 1998 and currently holds the position of chief biologist/supervisor of the Natural Resources Planning and Management Division, which specializes in wetland, natural areas, lake and stream management planning. During this period he has coauthored more than 50 technical reports related to lake and stream water quality, fish and other aquatic life assessments and watershed protection/restoration planning throughout the Southeastern Wisconsin Region. He practices a comprehensive science based watershed approach to water quality planning that provides the basis for communities to make sound decisions regarding environmental and land development issues – all with ties to strong partnerships and public involvement and sustained quality of life. He continues to serve on numerous technical advisory committees for local, state and federal agencies and/or organizations to provide guidance on instream water quality and habitat restoration planning and design review, fish and wildlife habitat protection as well as publish in peer-reviewed scientific literature.

He has been responsible for the restoration/rehabilitation of more than seven linear miles of fish and aquatic life stream habitat improvements associated with more than 35 roadway improvement projects that also included over 48 culvert design and/or retrofits to improve fish and aquatic life passage. These projects have included both warm-water and cold-water stream fish communities in a variety of both agricultural and urbanized landscapes. His most recent projects include development of watershed protection plans for Jackson Creek (tributary to Delavan Lake) and Mason Creek (tributary to North Lake), both within the Rock River Basin.


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