14 ATTACHMENT 6 - Appendix A - E

Summary of 2018 Spotorno Ranch Air Quality Analysis March 22, 2021 Page 2 AIR QUALITY AND GREENHOUSE GAS IMPACTS Air Quality Assessment The City of Pleasanton in Alameda County is located within the San Francisco Bay Area Air Basin, which is regulated by the EPA, the California Air Resources Board (ARB), and the Bay Area Air Quality Management District (BAAQMD). Pollutants of concern within the Alameda County include ozone (03), carbon monoxide (CO), nitrogen dioxide (NO2), sulfur dioxide (SO2), inhalable coarse particles (PM10), and fine particulate matter (PM2.5). Impact Analysis Impact AIR-1. Consistency with Air Quality Management Plan The Air Basin is designated non-attainment for state standards for 1-hour and 8-hour ozone, 24-hour respirable particulate matter (PM10), annual PM10, and annual fine particulate matter (PM2.5).1 The Air Basin is also non-attainment for the federal ozone and PM2.5 federal standards. A project would be judged to conflict with or obstruct implementation of the regional Air Quality Plan (AQP) if it would result in substantial new regional emissions not foreseen in the air quality management planning process. The BAAQMD does not provide a numerical threshold of significance for project-level consistency analysis. Therefore, the following criteria will be used for determining a project’s consistency with the AQP: • Criterion 1: Does the project support the primary goals of the AQP? • Criterion 2: Does the project include applicable control measures from the AQP? • Criterion 3: Does the project disrupt or hinder implementation of any AQP control measures? Criterion 1: Support Primary Goals of AQP Consistency with the Assumptions in AQP The primary way of determining whether a project is consistent with the AQP’s assumptions is to determine if the General Plan is consistent with the growth assumptions used in the AQPs for the Air Basin, and if the project is consistent with the applicable General Plan. The proposed project is generally consistent with the applicable goals and policies of the City of Pleasanton General Plan and the Happy Valley Specific Plan (HVSP). The 2005–2025 General Plan designates the project site as Low Density Residential, Medium Density Residential, and Open Space—Public Health and Safety. The HVSP designates the project site as PUD—Medium Density Residential (PUD-MDR); PUD—Semi-Rural Density Residential (PUD-SRDR); and PUD—Agriculture/Open Space (PUD-AG/OS). 1 BAAQMD. 2017. Air Quality Standards and Attainment Status. January. Website: http://www.baaqmd.gov/research-and-data/air-quality- standards-and-attainment-status. Accessed March 30, 2018.