Item 18 - Appeal Application Nos. 2023-02 and 2023-03 for Cabrillo Town Center project

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AIR QUALITY TECHNICAL REPORT Introduction This technical report addresses the air quality impacts generated by construction and operation of the proposed Cabrillo Town Center project in the City of Santa Ana. The analysis evaluates the consistency of the Project with the air quality policies set forth within the South Coast Air Quality Management District's (SCAQMD) Air Quality Management Plan (AQMP) and the City's General Plan. The analysis of Project -generated air emissions focuses on whether the Project would cause an exceedance of an ambient air quality standard or SCAQMD significance threshold. Calculation worksheets, assumptions, and model outputs used in the analysis are included in the Technical Appendix to this analysis. Regulatory Framework Federal The Federal Clean Air Act (CAA) was first enacted in 1955 and has been amended numerous times in subsequent years, with the most recent amendments in 1990. At the federal level, the United States Environmental Protection Agency (USEPA) is responsible for implementation of some portions of the CAA (e.g., certain mobile source and other requirements). Other portions of the CAA (e.g., stationary source requirements) are implemented by state and local agencies. In California, the CCAA is administered by the California Air Resources Board (CARB) at the state level and by the air quality management districts and air pollution control districts at the regional and local levels. The 1990 amendments to the CAA identify specific emission reduction goals for areas not meeting the National Ambient Air Quality Standard (NAAQS). These amendments require both a demonstration of reasonable further progress toward attainment and incorporation of additional sanctions for failure to attain or to meet interim milestones. The sections of the CAA which are most applicable to the Project include Title I (Nonattainment Provisions) and Title II (Mobile Source Provisions). NAAQS have been established for seven major air pollutants: CO (carbon monoxide), NO2 (nitrogen dioxide), Os (ozone), PM2.5 (particulate matter, 2.5 microns), PM10 (particulate matter, 10 microns), S02 (sulfur dioxide), and Pb (lead). The Clean Air Act (CAA) requires the USEPA to designate areas as attainment, nonattainment, or maintenance (previously nonattainment and currently attainment) for each criteria pollutant based on whether the National Ambient Air Quality Standards (NAAQS) have been achieved. Title I provisions are implemented for the purpose of attaining NAAQS. The federal standards are summarized in Table 1. The USEPA has classified Orange County as a nonattainment area for Os, PM2.5, and Pb. Cabrillo Town Center Air Quality ac77ca PAGE 18-647 City of Santa Ana 10/3/2023 July 2023