Who We Are
Onterris is a global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect.
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Access deep environmental expertise tailored to your industry, with solutions built for real-world conditions.
Solutions
Prepare for escalating environmental risks with expert solutions designed to perform under pressure.
Our Thinking
Explore briefs, perspectives and articles that turn insight into action. Discover thought leadership that informs decisions and drives impact. See the ideas shaping environmental solutions and guiding your next move.
Cuture & Careers
Where brilliant people come together to turn environmental science into real-world progress for communities, industry and the planet.

Dave Kempisty, PhD, PE

Vice President, Treatment Technology
Dave Kempisty headshot

About Dr. Kempisty

Dr. Kempisty is a licensed engineer with over 20 years of experience in the water treatment and environmental remediation space. His current role at Onterris focuses on the use of novel technologies for the removal of emerging contaminants such as PFAS, 1,4 dioxane, and carcinogenic volatile organics from the environment. Before this, he spent 22 years in the United States Air Force as an environmental engineer, occupational health consultant, and assistant professor. As editor of two books on per- and polyfluoroalkyl substances and author of over 20 peer-reviewed papers and presentations on a variety of environmental topics, Dave provides a well-balanced perspective on today’s environmental issues. Dave earned his Ph.D. from the University of Colorado-Boulder in Civil and Environmental Engineering. He holds a Master of Science from the Air Force Institute of Technology and a Bachelor of Science from Michigan Technological University.


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