Dr. Dutton has more than 25 years of experience in hydrogeology with emphasis in the areas of basin-scale and watershed-scale flow of groundwater; numerical modeling of groundwater resources; assessment and mapping of contaminant plumes associated with crude oil and natural gas production sites; unsaturated-zone flow; environmental site assessment; natural geochemical controls on water-quality variation; and paleohydrology. He developed and worked on computer models of ground water resources in the Edwards aquifer, central Carrizo-Wilcox aquifer, Ogallala aquifer, Trinity and Woodbine aquifers, and part of the Gulf Coast aquifer. He has given expert witness testimony for State of Texas on groundwater issues related to siting a low-level radioactive waste repository.