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4 Environmental Analysis 4.3 Air Quality 1-Hour Ozone.Although the USEPA revoked the 1-hour ozone standard in 2005, the SJVAB was required to demonstrate that this standard had been met. The SJVAPCD requested a USEPA finding of attainment based on 2012 to 2014 ozone data. On July 18, 2016 (81 Federal Register [FR] 46609), the USEPA determined that the SJVAB had achieved the 1-hour ozone NAAQS. 8-Hour Ozone. The SJVAPCD developed the 2016 Ozone Plan (SJVAPCD 2016)to address the USEPA's 2008 eight-hour ozone standard, which the SJVAB must attain by 2032. While substantial progress has been made to improve air quality in the SJVAB through the implementation of existing plans and clean air investments by businesses and residents, the SJVAB continues to experience unique and significant air quality challenges in attaining the increasingly stringent federal air quality standards. The SJVAB is classified as an "extreme" nonattainment area for the 2015 ozone standard. On June 18, 2020, the District published 2020 RACT Demonstration for the 2015 8-Hour Ozone Standard. The 2022 attainment plan for the 2015 eight-hour ozone standard was adopted in December 2022. The SJVAPCD's current regulations reflect technologies and methods that are beyond control levels established under the Clean Air Act. The control strategy included in the 2022 Ozone Plan will reduce NOX emissions by 72 percent between 2018 and 2037, which will help the Valley's progress toward attaining the 2015 8-hour ozone standard. The district's and state's incentive programs will also reduce emissions from mobile sources in the coming years. The 2022 Plan for the 2015 8-Hour Ozone Standard demonstrates that reductions being achieved will ensure expeditious attainment of the 2015 eight-hour ozone standard by the 2037 attainment deadline (SJVACPD 2022). Mo. The SJVAPCD adopted the 2007 PM10 Maintenance Plan and Request for Redesignation (SJVAPCD 2007), which demonstrated that the SJVAB has reached and will continue to meet the PM10 standard. The USEPA approved the document in 2008 and the SJVAB was redesignated to attainment/maintenance. PM2.5. The SJVAPCD's 2008 PM2.5 Plan demonstrated attainment of the 1997 PM2.5 standard in 2014. The USEPA lowered the PM2.5 standard in 2006 and again in 2012, and the SJVAPCD's 2018 Plan for the 1997, 2006, and 2012 PM2.5 Standards (SJVAPCD 2018) sets an attainment deadline of 2024. This plan was approved by the USEPA on June 30, 2020. The SJVAPCD's primary means of implementing air quality plans is by adopting and enforcing rules and regulations. Stationary sources within the jurisdiction are regulated by the SJVAPCD's permit authority and through its review and planning activities. Unlike stationary source projects, which encompass very specific types of equipment, process parameters, throughputs, and controls, air emissions sources from land use development projects are mainly mobile sources (traffic) and area sources (small, dispersed stationary and other non-mobile sources), including exempt (i.e., no permit required) sources, such as consumer products, landscaping equipment, furnaces, and water heaters. Mixed-use land development projects may include nonexempt sources, including devices such as small to large boilers, stationary internal combustion engines, gas stations, or asphalt batch plants. Notwithstanding nonexempt stationary sources, which would be permitted on a case-by-case basis, SJVAPCD regulations VIII and IX generally apply to land use development projects and are described as follows: Griffith Energy Storage Project 4.3-9 Tetra Tech/SCH 2022120675 Draft Environmental Impact Report August 2023