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

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year. This estimate reflects reductions attributable to the Project's characteristics (e.g., infill project near transit that supports multi -modal transportation options), as described above. Solid Waste Generation Emissions Emissions related to solid waste were calculated using the CaIEEMod emissions inventory model, which multiplies an estimate of the waste generated by applicable emissions factors provided in Section 2.4 of the USEPA's AP-42, Compilation of Air Pollutant Emission Factors. CaIEEMod solid waste generation rates for each applicable land use were selected for this analysis. As shown in Table 13, the Project scenario is expected to result in a total of 186 MTCO2e per year from solid waste that accounts for a 50-percent recycling/diversion rate.12 GHG emissions are related to the energy used to convey, treat, and distribute water, and treat wastewater. Thus, these emissions are generally indirect emissions from the production of electricity to power these systems. Three processes are necessary to supply potable water; these include (1) supply and conveyance of the water from the source; (2) treatment of the water to potable standards; and (3) distribution of the water to individual users. After use, energy is used as the wastewater is treated and reused as reclaimed water. Emissions related to water usage and wastewater generation were calculated for the Project using the CaIEEMod emissions inventory model, which multiplies an estimate of the water usage by the applicable energy intensity factor to determine the embodied energy necessary to supply potable water. GHG emissions are then calculated based on the amount of electricity consumed multiplied by the GHG emissions intensity factors for the utility provider. In this case, embodied energy for Southern California supplied water and GHG emissions intensity factors for SCE were selected in CaIEEMod. Water usage rates were calculated consistent with the requirements under the 2022 California Plumbing Code (which is based on the 2021 Uniform Plumbing Code), 2022 CALGreen, and reflect an approximately 20-percent reduction as compared to the base demand. As shown in Table 13, Project GHG emissions from water/wastewater usage would result in a total of 53 MTCO2e per year, which reflects a 20-percent reduction in water/wastewater emissions consistent with building code requirements as compared to the Project without sustainability features related to water conservation. Refriqe ants Emissions related to cooling structures and refrigeration needs were calculated using the CaIEEMod emissions inventory model. As shown in Table 13, the Project scenario is expected to result in a total of one MTCO2e per year from use of refrigerants that used HFCs and have high GWP values. Cabrillo Town Center City of Santa Ana Technical Memorandum August 2023 City Council 18 — 547 10/3/2023