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4 Environmental Analysis <br /> 4.12 Mineral Resources <br /> General Plan 2010 (San Joaquin County 1992). The map provided in this document shows no <br /> MRZs designated by the State Mining and Geology Board on or near the Project site. In the most <br /> recent update to the mapping of MRZs in Alameda County, the Midway Quad was not included <br /> (Kohler-Antablin 1996). As a result, no MRZs designated by the State Mining and Geology Board <br /> are present on or near the Project site in Alameda County and no mineral resources are identified <br /> in the General Plan on the Project site. The closest zones are small areas of MRZ-2 in and around <br /> the town of Tracy, and a larger MRZ-3 area surrounding the Tracy MRZ-2 locations and extending <br /> southeast to the County boundary with Stanislaus County. The implementation of the Project <br /> would not result in a loss of locally important mineral resources, and no impact would occur. <br /> Mitigation: None required. <br /> 4.12.5 PG&E Tesla Substation Improvements and Gen-tie <br /> To accommodate the Project, Pacific Gas and Electric (PG&E) would be responsible for siting, <br /> design, and construction of the gen-tie line from the point of change of ownership (POCO) to its <br /> substation. Two options are available for the gen-tie line from this point. The first option would be <br /> to connect via an aboveground line from the POCO to a point on the west side of the southwestern <br /> boundary of the substation. The second option is to enter the substation on the southwestern <br /> edge by way of a belowground line as shown in Figure 2-1 of Chapter 2, Project Description. <br /> Either right-of-way corridor is assumed to be up to 100 feet in width. <br /> Additionally, PG&E would upgrade the Tesla Substation, and the improvements would include <br /> the installation of a grounding system, disconnect switches, surge arresters, outdoor lighting and <br /> outlets, and fiber termination for the gen-tie line. The improvements made would be within the <br /> existing Tesla Substation footprint. <br /> These improvements would result in a change in the availability of a known mineral resource, nor <br /> would they result in the loss of availability of a locally important mineral resource recovery site <br /> delineated on a local general plan, specific plan, or other land use plan. Therefore, the PG&E <br /> Tesla Substation improvements would have no impact on significance criteria described for <br /> Impacts 4.12-1 or 4.12-2. No mitigation would be required. <br /> 4.12.6 Cumulative Impacts <br /> As described above, the Project would result in no impact to mineral resources. Therefore, the <br /> Project would not cause or contribute to a significant cumulative impact to mineral resources. <br /> 4.12.7 References <br /> Alameda County. 2000. East County Area Plan. Adopted May 5, 1994. Amended November <br /> 2000. Available online at: <br /> https://www.acgov.org/cda/planning/generalplans/documents/EastCountyAreaPlancombi <br /> ned.pdf(accessed May 2023). <br /> CGS (California Geological Survey). 2022. CGS Information Warehouse. Mineral Land <br /> Classification Map. Available online at: <br /> https://maps.conservation.ca.gov/cqs/informationwarehouse/index.htmI?map=mIc <br /> (accessed November 2022). <br /> Griffith Energy Storage Project 4.12-6 Tetra Tech/SCH 2022120675 <br /> Draft Environmental Impact Report August 2023 <br />