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

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• Construction: emissions associated with demolition of the existing uses, shoring, excavation, grading, and construction -related equipment and vehicular activity; • Area source: emissions associated with landscape equipment; • Energy source (building operations): emissions associated with electricity and natural gas use for space heating and cooling, water heating, energy consumption, and lighting; • Stationary source: emissions associated with stationary equipment (e.g., emergency generators); • Mobile source: emissions associated with vehicles accessing the Project Site; • Solid Waste: emissions associated with the decomposition of the waste, which generates methane based on the total amount of degradable organic carbon; and • Water/Wastewater: emissions associated with energy used to pump, convey, deliver, and treat water. • Refrigerants: These are substances used in equipment for air conditioning and refrigeration. Most refrigerants are HFCs or blends of them, which can have high GWP values. The Project would generate an incremental contribution to and a cumulative increase in GHG emissions. A specific discussion regarding potential GHG emissions associated with the construction and operational phases of the Project is provided below. Construction Project construction is anticipated to be completed in 2027 with occupancy the same year. A summary of construction details (e.g., schedule, equipment mix, and vehicular trips) and CaIEEMod modeling output files are provided in the Technical Appendix. The GHG emissions associated with construction of the Project were calculated for each year of construction activity. Construction of the Project is estimated to generate a total of 3,523 MTCO2e annually (Table 9). As recommended by the SCAQMD, the total GHG construction emissions were amortized over the 30-year lifetime of the Project (i.e., total construction GHG emissions were divided by 30 to determine an annual construction emissions estimate that can be added to the Project's operational emissions) to determine the Project's annual GHG emissions inventory.70 This results in annual Project construction emissions of 117 MTCO2e. A complete listing of the construction equipment by on -site and off -site activities, duration, and emissions estimation model input 70 SCAQMD Governing Board Agenda Item 31, December 5, 2008. Cabrillo Town Center PAGE 49 18 — 1014 City of Santa Ana 10/3/20 2021