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City of San Leandro 14143-14273 Washington Avenue Warehouse Project 74 Methodology GHG emissions were modeled under the same assumptions and methodology outlined in Section 3, Air Quality. As discussed under Significance Thresholds above, projects consistent with a qualified climate action plan (CAP) are assumed to have less-than-significant impacts related to GHG emissions. Therefore, the proposed project’s estimated GHG emissions during construction and operation are presented for informational purposes only. Impact Analysis a. Would the project generate GHG emissions, either directly or indirectly, that may have a significant impact on the environment? b. Conflict with an applicable plan, policy, or regulation adopted for the purpose of reducing the emissions of greenhouse gases? Construction The proposed project would generate GHG emissions during construction activities, resulting from emission sources such as construction equipment, haul trucks, vendor deliveries, and construction worker vehicles. Although these emissions would be temporary and short-term in nature, they could represent a substantial contribution of GHG emissions. Construction emissions were modeled using CalEEMod. Table 17 below summarizes the annual construction GHG emissions in terms of metric tons (MT) of carbon dioxide equivalents (CO2e) per year. BAAQMD has not established a quantitative significance threshold for evaluating construction related emissions, but it does recommend quantifying and disclosing construction-generated GHG emissions. The total emissions generated during construction were amortized over 30 years, a typical estimated operational lifetime for a project, and added to the operational emissions. Table 17 Project Construction GHG Emissions Construction Year Total GHG Emissions (MT CO2e) 2024 365 2025 14.7 Total Construction Emissions 379.7 Construction Emissions Amortized over 30 years 13 GHG = greenhouse gas MT CO2e = metric tons of carbon dioxide equivalent Totals may not sum due to rounding. Construction emissions are amortized over the 30-year lifetime of the project. Source: updated modeling outputs are included at the end of Appendix B Operation Operational GHG emissions would occur over the life of the project. Sources of operation GHG emissions include passenger vehicle and truck use associated with the project, stationary sources, electricity and power, area sources such as landscaping, water use, and waste generation. Table 18 summarizes estimated annual GHG emissions from the project’s operational activities.