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4 Environmental Analysis <br /> 4.13 Noise <br /> oo 20-foot-tall section totaling 1,998 linear feet; <br /> oo 26-foot-tall section totaling 1,995 linear feet; <br /> oo 26-foot-tall section totaling 302 linear feet; <br /> oo 26-foot-tall section totaling 308 linear feet; and <br /> oo 26-foot-tall section totaling 650 linear feet. <br /> 4.13.6 Pacific Gas and Electric Tesla Substation Improvements <br /> To accommodate the Project, PG&E would be responsible for siting, design, and construction of <br /> the gen-tie line from the point of change of ownership (POCO) to its substation. Two options are <br /> available for the gen-tie line route from this point. The first option would be to connect via an <br /> aboveground line from the POCO to a point on the west side of the southwestern boundary of the <br /> substation. The second option is to enter the substation on the southwestern edge by way of a <br /> belowground line as shown in Figure 2-1 of Chapter 2, Project Description. Either right-of-way <br /> 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 /> Construction associated with the Tesla Substation improvements has the potential to generate <br /> noise. Operation of the Tesla Substation improvements would not appreciably increase noise <br /> above ambient levels and the current substation operations. The construction activities associated <br /> with the PG&E infrastructure would be required to comply with, and adhere to,the same mitigation <br /> measures as the rest of the Project components. The construction impacts are expected to be <br /> similar to the levels presented in Table 4.13-6, and as such, these improvements would not have <br /> a substantial adverse effect on noise, and no additional mitigation measures would be required. <br /> 4.13.7 Cumulative Impacts <br /> Cumulative impacts should consider the effects of existing, current, and reasonably foreseeable <br /> future projects. As noted above, the proposed Project is shown to not significantly increase the <br /> overall ambient community noise level and would not expose persons to or generate excessive <br /> ground-borne vibration or ground-borne noise. <br /> There are no cumulative projects close enough to the proposed Project to potentially result in a <br /> cumulative noise impact and, therefore, the Project would not significantly contribute to any impact <br /> to noise, ground-borne vibration, or ground-borne noise. <br /> 4.13.8 References <br /> Alameda County. 2000. Noise Element. In: Alameda County General Plan. <br /> Alameda County. 2020. Chapter 6.60 Noise. In: Alameda County Code. <br /> Griffith Energy Storage Project 4.13-18 Tetra Tech/2022120675 <br /> Draft Environmental Impact Report August 2023 <br />