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

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The Project would be required to comply with the following regulations, as applicable: • SCAQMD Rule 403, would reduce the amount of particulate matter entrained in ambient air as a result of anthropogenic fugitive dust sources by requiring actions to prevent, reduce or mitigate fugitive dust emissions. • SCAQMD Rule 1113, which limits the VOC content of architectural coatings. • SCAQMD Rule 402, which states that a person shall not discharge from any source whatsoever such quantities of air contaminants or other materials which cause injury, detriment, nuisance, or annoyance to any considerable number of persons or to the public, or which endanger the comfort, repose, health, or safety of any such persons or the public, or which cause, or have a natural tendency to cause, injury or damage to business or property. • In accordance with Section 2485 in Title 13 of the California Code of Regulations, the idling of all diesel -fueled commercial vehicles (with gross vehicle weight over 10,000 pounds) during construction would be limited to five minutes at any location. • In accordance with Section 93115 in Title 17 of the California Code of Regulations, operation of any stationary, diesel -fueled, compression -ignition engines would meet specific fuel and fuel additive requirements and emissions standards. Regional Emissions Construction activity creates air quality impacts through the use of heavy-duty construction equipment and through vehicle trips generated by construction workers traveling to and from the Project Site. NOx emissions would primarily result from the use of construction equipment and truck trips. Fugitive dust emissions would peak during grading activities, where approximately 400 cubic yards of soil would be exported from the Project Site. All construction projects in the Basin must comply with SCAQMD Rule 403 for fugitive dust. Rule 403 control requirements include measures to prevent the generation of visible dust plumes. Measures include, but are not limited to, applying water and/or soil binders to uncovered areas, reestablishing ground cover as quickly as possible, utilizing a wheel washing system or other control measures to remove bulk material from tires and vehicle undercarriages before vehicles exit the Project Site, and maintaining effective cover over exposed areas. Compliance with Rule 403 would reduce regional PM2.5 and PM10 emissions associated with construction activities by approximately 61 percent. During the building finishing phase, the application of architectural coatings (e.g., paints) would release VOCs (regulated by SCAQMD Rule 1113). The assessment of construction air quality impacts considers each of these potential sources. Construction emissions can vary substantially from day to day, depending on the level of activity, the specific type of operation and, for dust, the prevailing weather conditions. As shown in Table 7, construction of the Project would produce VOC, NOx, CO, SOx, PM,o and PM emissions that do not exceed the SCAQMD's regional thresholds. As a result, construction of the ProjeU Cabrillo Town Center Air Quality ac77ca PAGE 27 18 — 673 City of Santa Ana 10/3/2023 July 2023