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4 Environmental Analysis 4.3 Air Quality The 2017 Clean Air Plan addresses nonattainment of the federal and state ozone standards in the SFBAAB, nonattainment of federal and state PM10 standards, and nonattainment of the state PM2.5 standard. The 2017 control strategy fulfills the state's ozone planning requirements, including all feasible measures to reduce emissions of ozone precursors (e.g., ROGs and NOx) and reduce transport of ozone and its precursors to neighboring air basins. In addition, the Clean Air Plan builds on and enhances the air district's efforts to reduce emissions of fine particulate matter and toxic air contaminants. The 2017 Clean Air Plan establishes a program of rules and regulations directed at reducing air pollutant emissions and achieving California and national air quality standards. The plan's pollutant control strategies are based on the latest scientific and technical information and planning assumptions, updated emission inventory methodologies for various source categories, and the latest population growth projections and vehicle miles traveled (VMT) projections for the region. The 2017 Clean Air Plan defines a control strategy that the BAAQMD and its partners will implement to: 1. Reduce emissions and decrease ambient concentrations of harmful pollutants; 2. Safeguard public health by reducing exposure to air pollutants that pose the greatest health risk, with an emphasis on protecting the communities most heavily impacted by air pollution; and 3. Reduce GHG emissions to protect the climate. In addition to updating the previously prepared ozone plan, the 2017 Clean Air Plan also serves as a multipollutant plan to protect public health and the climate. In its dual role as an update to the state ozone plan and a multipollutant plan, the 2017 Clean Air Plan addresses four categories of pollutants (BAAQMD 2017b): oo Ground-level ozone and its key precursors, ROG and NOx; oo Particulate matter: primary PM2.5, as well as precursors to secondary PM2.5; oo Air toxics (e.g., TACs); and oo GHGs. The 2017 Clean Air Plan includes local guidance for the state implementation plan (SIP), which includes the framework for air quality basins to achieve attainment of the state and federal ambient air quality standards. One of the 2050 goals of the Clean Air Plan is to develop and deploy strategies for onsite battery storage. The Project will help the BAAQMD to meet this goal. Regulations and Rules The following BAAQMD regulation and rule would be applicable to the Project: Regulation 6, Rule 6, Prohibition of Trackout: This regulation prohibits the trackout from any active exit of a large construction or disturbed surface site onto an adjacent paved public roadway or shoulder of a paved public roadway that exceeds cumulative 25 linear feet and creates fugitive dust/visible emissions without cleaning up the trackout within 4 hours of when the owner/operator identifies excessive trackout. The rule also prohibits more than 1 quart of trackout to remain on Griffith Energy Storage Project 4.3-13 Tetra Tech/SCH 2022120675 Draft Environmental Impact Report August 2023