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City of Pleasanton—Hidden Canyon Residences and Preserve Energy Draft EIR 3.5-10 FirstCarbon Solutions https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480016/EIR/3 - Draft EIR/21480016 Sec03-05 Energy.docx 3.5.8 - Project Impacts and Mitigation Measures This section discusses potential impacts associated with the development of the project and provides mitigation measures where appropriate. Energy Use Impact ENER-1: The proposed project would not result in potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources, during project construction or operation. Impact Analysis A discussion of the proposed project’s anticipated energy usage is presented below. PG&E provides electricity service to the proposed project site. Energy use consumed by the proposed project was estimated and includes electricity and fuel consumption for project construction and operation. Energy calculations are included as part of Appendix B. Construction The proposed project’s construction was assumed to begin in January 2026 and last approximately 18 months based on model defaults and applicant-provided information. If the construction schedule moves to later years, construction energy usage would likely decrease because of improvements in technology and more stringent regulatory requirements as older, less efficient equipment is replaced by newer and cleaner equipment. The proposed project would require demolition, site preparation, grading, building construction, architectural coating, and paving, in addition to off-site improvements along Dublin Canyon Road. The construction phase would require energy for the manufacture and transportation of building materials, preparation of the site (e.g., site clearing and grading), and the actual construction of the building. Petroleum-based fuels, such as diesel fuel and gasoline, would be the primary sources of energy for these tasks. The types of on-site equipment used during construction of the proposed project could include gasoline- and diesel-powered construction and transportation equipment, including trucks, excavators, forklifts, and pavers. Construction equipment is estimated to consume a total of 64,192 gallons of diesel fuel over the entire construction duration (Appendix B). Fuel use associated with construction vehicle trips generated by the proposed project was also estimated; trips include construction worker trips, haul truck trips for material transport, on-site trucks, and vendor trips for construction material deliveries. Fuel use from these vehicles traveling to the project site was based on (1) the projected number of trips the proposed project would generate during construction, (2) average trip distances by trip type, and (3) fuel efficiencies estimated in the ARB EMFAC mobile source emission model. The specific parameters used to estimate fuel usage are included in Appendix B. In total, the proposed project is estimated to generate 62,474 gallons of combined gasoline and diesel for vehicle travel during construction. The overall construction schedule and process is designed to be efficient in order to avoid excess monetary costs. For example, equipment and fuel are not typically used wastefully due to the added expense associated with renting the equipment, maintaining it, and fueling it. Therefore, the