2 - EIR18-01; DA18-01; GPA18-06; AA18-10_2525 N MAIN STREET

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determined that an impact related to historic resources would not occur from implementation of the Original Project. (DEIR, p. 4.4-9 through 4.4-15) Comparison of Impacts Associated with the Proposed Modified Project As detailed previously in the discussion of aesthetics (Section 3.1), the structures developed by the Modified Project would be between 16 and 31 feet lower in height than the Original Project structures and would be setback 50 feet further from the eastern property line and 121 feet further from the southern property line than the Original Project structures. The lower building heights and increased setbacks would result in a reduction of views of the new development from historic properties. The views of surface parking areas would be similar to the surface parking areas that currently exist on the site. Therefore, the Modified Project would not result in an increased impact to the integrity of the historic setting in Park Santiago compared to the Original Project. Also, as described previously, views of the Project site are screened by many tall trees with dense leaves throughout the Park Santiago neighborhood and along boundary of the Project site. This landscape screening would remain with implementation of Mitigation Measure AES-1 and Project Description Feature PDF-1, which would increase landscaping along the eastern boundary through installation of new trees ranging in size from 24- to 48-inch box trees and protection of the existing healthy trees. In addition, the subterranean parking for the Modified Project would be 13,300 square feet smaller than the subterranean parking for the Original Project. Thus, less excavation would occur, and no potentially increased impacts related to archaeological resources would result from implementation of the Modified Project. Therefore, no new or greater impacts related to cultural/historic resources would occur from implementation of the Modified Project. Conclusion for Cultural/Historic Resources Due to the reduced height and scale of the Modified Project, the existing built environment, and location of the Santa Ana Register of Historic Properties, the integrity of the historic setting and feeling aspects of properties in Park Santiago would not be reduced by implementation of the Modified Project. Thus, consistent with the Original Project, the Modified Project would not result in a reduction in the historic significance of properties. Based on the foregoing, none of the conditions identified in CEQA Guidelines Section 15088.5 that would trigger the need to prepare a recirculated EIR or other environmental document exist. The Modified Project would not result in either a new significant environmental impact or a substantial increase in the severity of a previously identified impact. EIR Mitigation Measure The EIR determined that impacts related to cultural/historic resources would be less than significant and no mitigation measures are required. 3.5 Greenhouse Gas Emissions Summary of Impacts Identified in the EIR As described in DEIR Section 4.5, Greenhouse Gas Emissions, the Original Project construction and operation of the Project would generate greenhouse gas (GHG) emissions that are below the SCAQMD’s threshold for greenhouse gas emissions. (DEIR, pp. 4.5-9 through 4.5-10.) In particular, as detailed in the EIR, the Project’s total net annual GHG emissions would be approximately 4.30 metric tons per year per service population, which would be less than the SCAQMD Tier 4 Option 3 threshold of 4.80 metric tons per year per service population; and therefore, less than significant. (DEIR, pp. 4.5-9 through 4.5-10.) The EIR also describes that projects in the City are required to comply with state and federal programs that are designed to improve energy efficiency and reduce GHG emissions, including the California Title 24, California Energy 2-152