Dennis is an expert in public drinking water systems and related groundwater issues. Before joining GSI, he was the groundwater coordinator for the Oregon Department of Human Services, Drinking Water Program, and was a university professor of geology and hydrogeology in Oregon and Texas. He specializes in conducting source water assessments of groundwater-based public water systems, including delineating time-related capture zones for wells and estimating aquifer sensitivity; provides technical assistance for public water systems with groundwater resources; provides training in groundwater issues; and conducts hydrogeologic and hydrogeochemical studies of groundwater resources.

Education:

• PhD, Geology and Geochemistry, Oregon State University
• Graduate Studies, University of North Carolina at Chapel Hill
• BA, Geology, Portland State University

Registration:

• Registered Geologist , Oregon

Years of Applicable Experience: 32