By Marc Campopiano, Lucas I. Quass and Samantha Seikkula
In a published decision, following the Supreme Court’s decision in California Building Industry Association v. Bay Area Air Quality Management District (2015) 62 Cal.4th 369, the First District Court of Appeal upheld California Environmental Quality Act (CEQA) thresholds of significance adopted by the Bay Area Air Quality Management District (the District) in California Building Industry Association v. Bay Area Air Quality Management Dist. (2016) 2016 Cal. App. LEXIS 683. While the Court upheld limited use of the District’s thresholds, it determined that the thresholds “may not be used for the primary purpose envisioned by District, namely, to routinely assess the effect of existing environmental conditions on future users or occupants of a project.”
Adopted in 2010, the District’s thresholds set “construction-related” and “operational-related” significance levels for TACs and PM2.5 emissions, broken down into four separate categories, including categories for new receptors (Receptor Thresholds). The District also published new “CEQA Air Quality Guidelines” (District Guidelines), which include the thresholds and suggest methods of assessing and mitigating impacts found to be significant. The California Building Industry Association challenged the Receptor Thresholds on the grounds that CEQA does not require an analysis of an existing condition’s impact on a project’s future occupants. The Supreme Court agreed, finding that CEQA does not require an agency to consider a project’s existing conditions on future users and residents of a proposed project. The Supreme Court remanded the case to the Court of Appeal to determine whether the Receptor Thresholds were consistent with its decision.