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

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South Coast Technology Center Project CEQA Exemption 15183 policies in the General Plan Update, the GPU PEIR concluded that future development pursuant to the General Plan Update would result in significant and unavoidable impacts regarding consistency with SCAQMD's 2016 AQMP. Regarding impacts related to a cumulatively considerable net increase of criteria pollutants, the GPU PEIR acknowledged that construction activities associated with the General Plan Update would temporarily increase particulate matter (i.e., PM,o and PM2.5), volatile organic compounds (VOC), nitric oxides (NOx), sulfur oxides (SOx), and carbon monoxide (CO) regional emissions within the Basin. The GPU EIR also acknowledged that individual projects accommodated under the General Plan Update may not exceed the SCAQMD regional significance thresholds, but because site -specific development project information was not available at the time of the preparation of the GPU PEIR, and projects under the GPU PEIR could be constructed at the same time, impacts related to construction -related emissions that would cumulatively contribute to nonattainment designations of the Basin would be significant even with the implementation of GPU PEIR MM AQ-1. Similarly, the GPU PEIR concluded that buildout in accordance with the General Plan Update would generate long-term emissions that would exceed SCAQMD's regional significance thresholds for VOC, NOx, and CO, which would cumulatively contribute to the nonattainment designations of the Basin. GPU PEIR MM AQ-2, in addition to the goals and policies of the General Plan Update, would reduce air pollutant emissions to the extent feasible, but impacts would remain significant and unavoidable due to the magnitude of the overall land use development associated with the General Plan Update. Regarding sensitive receptors, the GPU PEIR concluded that buildout of the General Plan Update, including industrial and warehousing land uses, could expose sensitive receptors to substantial concentrations of toxic air contaminants (TACs). While individual projects could result in TAC emissions under the project -level risk threshold of 10 per million, they would nonetheless contribute to the higher levels of risk in the Basin. GPU PEIR MM AQ-3, requiring a project -specific health risk assessment (HRA) for new industrial or warehousing developments, would be required to ensure mobile sources of TACs not covered under SCAQMD permits are considered during subsequent project -level environmental review by the City. Additionally, GPU PEIR MM AQ-1 and MM AQ-2 would reduce the regional construction and operation emissions associated with buildout of the General Plan Update, and therefore also result in a reduction of localized construction- and operation -related criteria air pollutant emissions to the extent feasible. However, implementation of the General Plan Update would generate TACs that could contribute to elevated levels in the Basin, and because existing sensitive receptors may be close to project - related construction activities and large emitters of on -site operation -related criteria air pollutant emissions, construction and operation emissions generated by individual development projects have the potential to exceed SCAQMD's Localized Significance Thresholds (LSTs). Thus, the GPU PEIR concluded that the General Plan Update's cumulative contribution to health risk and localized impact would remain significant and unavoidable. However, because buildout of the General Plan Update would not result in the increase in traffic volume required to generate a CO hotspot, impacts related to CO hotspots would be less than significant. Regarding odors, the GPU PEIR determined that industrial land uses have the potential to generate objectionable odors, and that GPU PEIR MM AQ-4 would ensure that odor impacts are minimized, and that facilities would comply with SCAQMD Rule 402. The GPU PEIR stated that the Industrial and Industrial Flex land uses proposed under the General Plan Update are not anticipated to produce odors since the General Plan Update assumes that the odor -producing industrial land uses such as wastewater treatment plants, compost facilities, landfills, solid waste transfer stations, fiberglass manufacturing, facilities, paint/coating operations (e.g., auto body shops), dairy farms, petroleum refineries, asphalt batch manufacturing plants, chemical July 2024 Page 19