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City of Pleasanton—Hidden Canyon Residences and Preserve Draft EIR Air Quality FirstCarbon Solutions 3.2-21 https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480016/EIR/3 - Draft EIR/21480016 Sec03-02 Air Quality.docx ARB has adopted diesel exhaust control measures and more stringent emission standards for various on-road mobile sources including transit buses and off-road diesel equipment (e.g., tractors, generators). These standards are encompassed in the Airborne Toxic Control Measures (ATCMs) aimed at reducing TACs from mobile sources (including on-road and off-road vehicles) and stationary sources. ATCMs that are relevant and applicable to the proposed project are listed below:25 • Diesel PM Control Measure for On-Road Heavy-Duty Diesel-Fueled Residential and Commercial Solid Waste Collection Vehicles (13 California Code of Regulations [CCR] §§ 2020, 2021) • ATCM for Diesel PM from Portable Engines Rated at 50 Horsepower and Greater (17 CCR § 93116) • ATCM to Limit Diesel-Fueled Commercial Motor Vehicle Idling (13 CCR § 2485) • Asbestos ATCM for Construction, Grading, Quarrying and Surfacing Mining Operations; (17 CCR § 93105) • ATCM to Reduce Particulate Emissions from Diesel-Fueled Engines – Standards for Nonvehicular Diesel Fuel (17 CCR § 93114) As a result of these actions, mobile source emissions of TACs (benzene, 1,3-butadiene, DPM) and stationary sources of TACs have been reduced significantly since 1990, leading to a reduction of ambient cancer risk in California of about 80–85 percent. Regional Air Quality Regulations for TACs The BAAQMD has regulated TACs since the 1980s. At the local level, air pollution control or management districts may adopt and enforce ARB’s control measures. Under BAAQMD Regulation 2- 1 (General Permit Requirements), Regulation 2-2 (New Source Review), and Regulation 2-5 (New Source Review), all nonexempt sources that possess the potential to emit TACs are required to obtain permits from BAAQMD. Permits may be granted to these operations if they are constructed and operated in accordance with applicable regulations, including new source review standards and air toxic control measures. The BAAQMD limits emissions and public exposure to TACs through a number of programs. The BAAQMD prioritizes TAC-emitting stationary sources based on the quantity and toxicity of the TAC emissions and the proximity of the facilities to sensitive receptors. In addition, the BAAQMD has adopted Regulation 11, Rules 2 and 14, which address asbestos demolition, renovation, manufacturing, and standards for asbestos-containing serpentine. The BAAQMD adopted Regulation 11, Rule 18 (Reduction of Risk from Air Toxic Emissions at Existing Facilities) in 2017, which requires any facility with health risks above risk action thresholds to make reasonable reductions in those health risks. AB 617 required all air districts around the State to identify and select communities that suffer a high cumulative exposure burden from air pollution. In the Bay Area, these communities include all the Community Air Risk Evaluation (CARE) Areas, as well as areas with large sources of air pollution, 25 California Air Resources Board (ARB). 2024. Airborne Toxic control Measures. Website: https://ww2.arb.ca.gov/resources/documents/airborne-toxic-control-measures. Accessed February 25, 2025.