Item 28 - Public Hearing - ZOA No. 20204-01 South Coast Technology Center

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South Coast Technology Center Project CEQA Exemption 15183 The Project's construction emissions would be below the established thresholds and would result in less than significant air quality impacts. Thus, it can be reasonably inferred that the Project's construction emissions would not contribute to a cumulatively considerable air quality impact for nonattainment criteria pollutants in the Basin, and impacts would be less than significant. Operational Impacts Long-term air quality impacts typically consist of mobile source emissions generated from traffic associated with on -site uses (i.e., motor vehicle use by employees, deliveries travelling to and from the site), and emissions from area and energy sources. Operational emissions associated with the existing and proposed uses of the Project Site were estimated in CaIEEMod. Existing uses of the Project Site generate 1,930 daily trips while the Project would generate 1,544 daily trips'. This analysis utilized trip lengths of 39.9 miles per trip for 4-axle trucks and 14.2 miles per trip for 2-axle and 3-axle trucks based on SCAQMD guidance; trip lengths for passenger cars remain as CalEEMod defaults (5.3 to 13.4 miles per trip). At the time of this analysis, it has not been determined if the ultimate tenants for the proposed buildings would operate their own fleet; most warehouse operators have no control over the trucks entering and exiting their facilities. Consequently, it is infeasible to require trucks with particular emission profiles (e.g., zero -emission [ZE], near -zero -emission [NZE], or 2010 or beyond model year trucks) for Project operations. If ZE or NZE fleets are utilized during Project operations, the Project's emissions would be less than those identified in this analysis. Area source emissions would be generated from consumer products, architectural coatings, and landscaping. Regarding energy emissions, the primary use of electricity by the Project would be for space heating and cooling, water heating, ventilation, lighting, appliances, landscaping equipment, and electronics. The proposed Project would not consume natural gas according to the Project applicant. However, criteria air pollutant emissions from electricity use are not quantified since criteria pollutants emissions occur at the site of the power plant, which is off -site. Emissions associated with each of these sources were calculated and are discussed below in Table 4.3-2, Operational Criteria Pollutant Emissions. As shown in Table 4.3-2, the daily total operational emissions would not exceed established SCAQMD thresholds. Therefore, impacts would be less than significant. As shown in Table 4.3-2, the Project would result in reduced ROG and CO emissions during both summer and winter conditions compared to existing conditions primarily due to the proposed Project generating less mobile source emissions than the existing office uses. In addition, the Project would not consume natural gas, which would also partially contribute to the reductions of ROG and CO emissions. Overall, the daily total operational emissions would not exceed established SCAQMD thresholds. As discussed, the proposed Project would not result in long-term operational air quality impacts. Additionally, adherence to SCAQMD rules and regulations would alleviate potential impacts related to cumulative conditions on a project -by -project basis. Emission reduction technology, strategies, and plans are constantly being developed. As a result, the proposed Project would not contribute a cumulatively considerable net increase of any nonattainment criteria pollutant. Therefore, no cumulative operational impacts associated with implementation of the proposed Project would result. Linscott, Law & Greenspan, Engineers, Trip Generation Assessment for the Proposed South Coast Technology Center Project, January 2, 2024. July 2024 Page 24