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4 Environmental Analysis 4.5 Cultural Resources been maintained and updated with new poles since 1947. Although they remain unevaluated, both resources likely do not qualify as historic resources under CEQA based on lack of historic integrity: the ranch because its buildings are no longer extant, and the transmission line because it has been modified with new materials since 1947. The Project would avoid these resources and, therefore, have no direct impact on these resources. Furthermore, the Project is not anticipated to have an adverse visual impact on the setting of these resources based the current visual setting of the area, which contains several existing transmission line towers, poles, a substation, buildings, and roads. Project elements would be 6 to 10 feet tall, shorter than other elements in the vicinity, which include the PG&E Tesla Substation and at least four transmission lines. Additionally, the Project would be contained within only an estimated 32 acres of the overall parcel, about 0.2 miles to the south-southeast of P-01-10500, further minimizing its potential visual impact to the already impacted setting. Therefore, the Project would have a less than significant impact to a historical resource or unique resource pursuant to Sectionl5064.5. Mitigation: None required. IMPACT 4.5-2: Would the project cause a substantial adverse change in the significance of an archaeological resource pursuant to Section15064.5? (Less than Significant Impact with Mitigation Incorporated) No archaeological resources were identified within the Project site that meet the CEQA's definition of a significant archaeological resource pursuant to Section 15064.5. Construction of the Project could potentially impact previously unidentified, buried archaeological resources. Based on the natural setting, landforms, records search results, NAHC SLF results, field survey, known site density, and disturbance to native soils, the Project area is assessed as having a low sensitivity for buried archaeological resources. Despite the low sensitivity, there is a possibility that buried archaeological deposits may be encountered during Project-related subsurface excavation. Mitigation: If previously unidentified archaeological resources are discovered during ground- disturbing activities during construction, the Project may have significant impacts. To reduce potential impacts, Mitigation Measures CUL-1, which requires worker awareness training regarding tribal and cultural resources, and CUL-2, the inadvertent discovery plan for cultural resources, should be implemented. Thus, the Project would have less than significant impacts to historic and archaeological resources with the implementation of Mitigation Measures CULA and CUL-2. IMPACT 4.5-3: Would the project disturb any human remains, including those interred outside of formal cemeteries?(Less than Significant Impact) No human remains or cemeteries were identified within the Project site as a result of the record searches, NAHC SLF search, AB 52 notification (see Section 4.16), and pedestrian field survey. Existing regulations require that, if human remains and/or cultural items defined by Health and Safety Code, Section 7050.5, are inadvertently discovered, all work in the vicinity of the find would Griffith Energy Storage Project 4.5-17 Tetra Tech/SCH 2022120675 Draft Environmental Impact Report August 2023