Dr. Voss is a senior scientist with the hydrological research program of the U.S. Geological Survey (USGS).

He has over 30 years of project management, implementation, field and research experience in groundwater systems, including: computer model development and application of models to scientific evaluation of hydrogeologic systems, groundwater resources development and protection, coastal groundwater resources, and the use of the subsurface for energy production and waste isolation.

He is recognized as an international expert on groundwater modeling.

He consults extensively on groundwater system evaluation and management and lectures worldwide on these and Related subjects. The practical methodology and models he developed are in standard use worldwide in subsurface assessment.