What is “adequate mitigation”?

by Andrew Shaffer  on June 27, 2018 | | No comments

Both CEQA and NEPA require historic properties to be protected to the greatest extent feasible. Assessing impacts is an iterative process that first examines the significance of the resource, its boundaries and character defining features, and then evaluates a project’s effects upon those characteristics. Impacts can be direct, indirect or cumulative. Direct impacts physically change character defining features and noticeably diminish the resource’s significance. Indirect impacts like noise, light and glare, do not physically alter the resource, but diminish its character. Cumulative impacts may not be individually significant, but collectively add up to great loss. After determining the type and extent of impact, determine how to avoid, minimize or mitigate the loss. Adequate mitigation lowers the impact to a “less than significant” level.

About the Author

Andrew Shaffer is the California Preservation Foundation’s Engagement Director. His job includes sharing stories of CPF’s work and collaborating with members and partner organizations on preservation issues across California. Prior to joining CPF, he studied at the University of San Francisco and the University of Wisconsin, where he specialized in LGBTQ history, preservation, and activism. Andrew is a transplant to San Francisco and loves showing off his adopted hometown to people from all over the world.