Donald HansonDonald Hanson manages cleanup projects for the Oregon Department of Environmental Quality (DEQ). He has 19 years of experience investigating and cleaning up sites in the western United States as a consultant and as a state regulator in Oregon. Don specializes in using innovative and cost-effective technologies to stabilize and clean up dry cleaners and other chlorinated solvent sites for DEQ's Dry Cleaner and Orphan programs. A graduate of California State University Humboldt, Hanson holds a B.S. in Geology. He has been a Registered Professional Geologist (RG) in Oregon since 1997.