Ronald J. Buchanan, Jr., Ph.D., is a Principal Consultant with DuPont Corp. Remediation Group in Wilmington, Delaware. Ron is a member of DuPont's Bioremediation Technology Network which is developing microbial anaerobic reductive dehalogenation and intrinsic bioremediation of chlorinated solvents. He is also a member of the EPA/RTDF Project Team developing and applying natural attenuation of chlorinated solvents at Dover Air Force Base in Delaware. Ron received his Ph.D. in Environmental Engineering and Science from Drexel University in 1977, and has published over two dozen papers in the field of hazardous waste management and environmental technology. He is a member of the Governor's Science Advisory Board in Pennsylvania and the Pa DEP Solid Waste Advisory Committee.