2019-040 - Mainplace Mall Transformation

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City of Santa Ana Addendum to the MainPlace Mall Transformation Project Fashion Square Commercial Center Final EIR Table AQ-5: GHG Emissions from the Proposed Project Emissions Source MTCO2e per Year Existing Conditions Originally Approved Plan Current Entitlement Proposed Project Construction Amortized Over 30 Years N/A 227 170 291 Area Sources 0.03 0.11 0.09 20 Energy 4,255 20,565 15,494 15,322 Mobile 31,043 50,559 39,499 39,945 Solid Waste 298 938 804 820 Water and Wastewater 541 2,635 2,495 2,437 Total 36,137 74,924 58,462 58,835 Source: Greenhouse Gas Emissions Assessment, 2019 Table AQ-5 shows that the proposed Project would have greater construction emissions than those associated with the Originally Approved Plan and the Current Entitlements. However, the modeling conservatively assumes no soil import/export or demolition for the Originally Approved Plan and the Current Entitlements, since demolition and grading details are not known for these scenarios. Thus, actual emissions with these scenarios would be higher. In addition, Table AQ-5 shows that that the net GHG emissions from development of the proposed Project would be 15,863 MTCO2e/yr less than the development contemplated under the Originally Approved Plan. Table AQ-6 compares the service population GHG emissions associated with the proposed Project, the Originally Approved Plan, and the Current Entitlements. As shown, the proposed Project's service population would be higher and service population GHG emissions would be less than the Originally Approved Plan and the Current Entitlements scenarios. The proposed Project's lower efficiency metric means that it would accommodate more residents and employees at a lower overall rate of emissions. Additionally, the proposed Project's GHG Efficiency of 2.84 MTCO2e per service population is below the SCAQMD's 3.0 MTCO2e per service population 2035 threshold. Thus, the impacts related to GHG emissions would be less than significant. Also, the proposed Project would result in fewer total GHG emissions than the Originally Approved Plan and would be similar to emissions from the Current Entitlements. Thus, no new impacts related to GHG emissions would occur from the proposed Project. Table AQ-6: Net Service Population GHG Emissions Emissions Source (Net New Building Area) Net Emissions MTCO2e/year Net Service Population MTCO2e1yea r/ Service Population Originally Approved (1983) Plan 38,787 5,181 7.49 Current Entitlement 22,325 4,462 5.00 Proposed Project 22,698 8,001 2.84 119