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4 Environmental Analysis 4.17 Utilities and Service Systems The proposed Project would not require the expansion of the existing PG&E Tesla Substation or relocation of existing utility lines. As discussed above, the proposed Project would use underground or aboveground power lines to connect to the Tesla Substation. New transmission lines or structures would be constructed in accordance with the most recent APLIC guidance (APLIC 2012)to reduce the potential for injury and mortality to migratory birds from collisions and electrocution, and impacts to birds due to collisions with the proposed overhead electrical lines would be less than significant, as further discussed in Section 4.4, Biological Resources. Electric facilities and connections proposed as part of the Project could result in potential environmental impacts that are discussed throughout this Draft EIR. The Project would not require or result in the construction or relocation of new or expanded electric facilities beyond those included as part of the Project that would cause an adverse environmental effect. Natural Gas No natural gas utility connections are proposed or would be impacted by the proposed Project. As a BESS facility, the Project does not require the use of natural gas for the power generation process. Therefore, no natural gas facilities are proposed as part of the Project, nor would the Project result in the relocation or construction of new or expanded natural gas facilities that would cause an adverse environmental effect. Telecommunications Facilities The proposed Project would not require the construction of new or modifications to existing telecommunication infrastructure. In summary, the proposed Project would not require the relocation or expansion of existing utilities in the Project area. The proposed Project would include the installation of a gen-tie transmission line, either underground or overhead, and an associated maintenance road would be required. Acquisition of the appropriate permits noted above, and compliance with all applicable regulations and requirements of those permits would reduce any potential impacts from the construction of new utilities to a less than significant level. Mitigation: GEO-1. IMPACT 4.17-2: Would the project have sufficient water supplies available to serve the project and reasonably foreseeable future development during normal, dry and multiple dry years?(Less than Significant Impact) As discussed in IMPACT 4.17-1, the BESS facility would require a minimal amount of water during construction, operation, and decommissioning. Water would be used for dust control and soil compaction during construction and decommissioning. Active construction and decommissioning water use would require 30.7 of of water per phase, and construction would take place over a 15- month period. Operation of the Project would require less than 1 of of water per year. Water would be primarily sourced from an offsite water purveyor within the Tracy Subbasin (Appendix H). Construction water demand is expected to be met from groundwater from the Tracy Subbasin. The water demand of the Project (61.4 af; 30.7 of each for construction and decommissioning) accounts for only 0.03 percent of the average annual pumping demand (199,549 AFY)within the Griffith Energy Storage Project 4.17-10 Tetra Tech/SCH 2022120675 Draft Environmental Impact Report August 2023