Periann Wood is a Senior Environmental Scientist at the U.S. Environmental Protection Agency where she has been involved with compliance and enforcement actions in Hazardous Waste, TMDL (Total Maximum Daily Load) development for contaminated waters in the Water Division, and is presently manager of community-based air toxic projects in Arizona and California. She is a 15 year resident of Marin County and served on the Solid Advisory Board and the Hazardous Waste Advisory Board to the County Supervisors. She chaired the Bayfront Committee from 1989-1991 and has been along time MCL member and director. She holds a Ph.D. in Molecular Biology from Wesleyan University.