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4.5 – Greenhouse Gas Emissions Draft Environmental Impact Report February 2021 14800 W. Schulte Road Logistics Center 4.5-26 Mobile Sources All details for criteria air pollutants discussed in Section 4.1.3 are also applicable for the estimation of operational mobile source GHG emissions. Mobile sources for the Project would primarily be motor vehicles (automobiles, light -duty trucks, and heavy -duty trucks6) traveling to and from the Project site. Emissions from the mobile sources during operation of the Project were estimated using a spreadsheet -based model and emission factors from CARB ’s EMFAC2017. Solid Waste The Project would generate solid waste, and therefore, result in CO 2e emissions associated with landfill off - gassing. CalEEMod default values for solid waste generation were used to estimate GHG emissions associated with solid waste. Water and Wastewater The Project proposes utilization of a private well for water and an on-site septic system for sewage disposal. The Project would operate a 22-kilowatt electric pump to pump water from the private well for water use. Water consumption estimates for indoor and outdoor water use were estimated using CalEEMod default values. Electricity use for water supply were based on the electric pump rating, pump flowrate, electricity intensity factors from CalEEMod for the County, and the indoor and outdoor water use default values in CalEEMod. Off-Road Equipment All details for criteria air pollutants discussed in Section 4.1.3 are also applicable for the estimation of operational off-road sources of GHG emissions and the estimation of operational GHG emissions from the fire pump. 4.5.4 Impacts Analysis Threshold A: Would the Project generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the environment? Threshold B: Would the Project conflict with an applicable plan, policy, or regulation adopted for the purpose of reducing the emissions of greenhouse gases? Less-Than-Significant Impact. Construction Emissions Construction of the Project would result in GHG emissions primarily associated with the use of off-road construction equipment, haul trucks, on-road vendor trucks, and worker vehicles. CalEEMod was used to calculate the annual GHG emissions based on the construction scenario described in Section 4.5.3, Thresholds of Significance. Construction of the Project is anticipated to commence in July 2021 and would last approximately 10 months, ending in April 2022. On-site sources of GHG emissions would include off- 6 “Heavy-duty trucks” include medium-heavy-duty trucks (three-axle) and heavy-heavy-duty trucks (four-plus-axle).