RES 2026066 - Laserfiche WebLink

ARROYO LAGO RESIDENTIAL PROJECT ADDENDUM FCS 73 Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480036/Addendum/21480036 Arroyo Lago Residential Project Addendum.docx Discussion a) Air Quality Plan Conflict Would the project: Conflict with or obstruct implementation of the applicable air quality plan? Prior FEIR Conclusions The Prior FEIR determined that the project site is located within the San Francisco Bay Area Air Basin (SFBAAB), which is regulated by the Bay Area Air Quality Management District (Bay Area Air District). The 2017 Clean Air Plan includes control measures aimed at reducing regional air pollutants and GHGs. Under the Bay Area Air District’s CEQA Air Quality Guidelines, a project’s consistency with the Clean Air Plan is evaluated in part by determining its consistency with the regional significance thresholds. Although the County Project’s construction emissions would be below these thresholds and therefore would not result in substantial new regional emissions not already accounted for in regional air quality planning, the Bay Area Air District also requires implementation of its recommended Best Management Practices (BMPs) for construction dust as a qualitative criterion for determining CEQA significance. Importantly, the Bay Area Air District’s construction dust guidance is based not on the level of modeled emissions, but on whether the project incorporates the recommended BMPs. Because projects that do not implement dust-control BMPs are considered potentially significant regardless of calculated reductions, the Prior FEIR required implementation of Mitigation Measure (MM) AIR-1 22 to ensure consistency with Bay Area Air District guidance. With MM AIR-1 incorporated, the County Project would implement the Bay Area Air District’s recommended BMPs and therefore would not conflict with the control measures in the 2017 Clean Air Plan. Alternative 2 would result in similar construction activities, and MM AIR-1 would also be required to ensure consistency with the guidance. Therefore, the Prior FEIR concluded that neither the County Project’s nor Alternative 2’s impacts would conflict with the applicable air quality plan, and impacts would be less than significant with mitigation incorporated. (Draft EIR, pp. 3.2-44, 6-11, 6 -12). Proposed Project Analysis and Conclusion The Bay Area Air District is responsible for reducing emissions from area, stationary, and mobile sources in the SFBAAB to achieve National and California Ambient Air Quality Standards (AAQS). The Bay Area Air District 2017 Clean Air Plan is a regional and multiagency effort to reduce air pollution in the Air Basin. A consistency determination with the 2017 Clean Air Plan plays an important role in local agency project review by linking local planning and individual projects to the 2017 Clean Air Plan. It fulfills the CEQA goal of informing decision-makers of the proposed project's environmental effects under consideration early enough to ensure that air quality concerns are fully 22 Note: MM AIR-1 includes minor modifications to update the abbreviation for the Bay Area Air Quality Management District, which has changed since the publication of the Prior FEIR. These edits reflect minor typographical corrections.