Yvonne is an Aquatic Ecologist with the U.S. EPA. For the last 20 years, she has worked in EPA's Oregon Operations Office in Portland as the Oregon Wetland and Watershed Coordinator and the Lower Columbia River Estuary Program Manager for EPA Region 10. She previously worked with the U.S. Army Corps of Engineers. Her work with EPA is focused on the technical and policy aspects of the Clean Water Act (CWA), including Section 404. Her practicable experience includes work in wetland delineation and assessment, 404(f) exemptions, enforcement, mitigation, CWA jurisdiction, 404 program assumption, and wetland restoration, as well development of wetland research projects and the management of wetland development grants for states, tribes, and local governments. Yvonne is a licensed wetlands biologist. She earned a B.S. in Wildlife Biology from Louisiana Tech University and an M.S. in Marine Ecology from Texas A&M.