Alydda Mangelsdorf

North Coast Regional Water Quality Control BoardChief, Planning and Stewardship Division

Alydda Mangelsdorf is the Chief of the Planning and Watershed Stewardship Division at the North Coast Regional Water Quality Control Board where she’s held a leadership role for the last 8 years. Alydda has a bachelor’s degree in Environmental Science and a master’s degree in Environmental Policy, with a focus on aquatic systems and bioregional decision making. She began her career in 1989, at U.S. EPA Region IX where she worked on wastewater discharge issues related to cities, tribes, mines, and agricultural operations. Alydda also oversaw hazardous waste cleanup on federal facilities and initiated the Region’s watershed-scale sediment assessment and erosion control planning (TMDL) efforts. She transitioned to the Water Board in 2007, where she managed and was principal investigator on multiple planning and TMDL projects prior to becoming a member of the Region’s management team. She lives in Sonoma County where she is raising two wonderful young adults, a dog, a cat, and several chickens.