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City of Pleasanton 2023-2031 (6th Cycle) Housing Element Update CEQA Findings of Fact and Statement of Overriding Considerations FirstCarbon Solutions 31 Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480022/FOF/21480022 Pleasanton Housing Element FOF.docx Facts in Support of Findings: As discussed previously in Impacts GEO-1(iii), certain geologic units are present within some of the potential sites for rezoning and have the potential for landslides, slope instability, rock falls, liquefaction, settlement, and liquefaction-induced lateral spreading on-site. Other geologic hazards, such as subsidence or collapse, are also present. The General Plan includes policies and programs specifically designed to protect individuals from injuries and minimize property damage resulting from development on unstable geologic units or unstable soils by limiting development in certain areas and requiring increased review and mitigation where appropriate. These policies and programs include, but are not limited to, Goal 2, Policy 5, Programs 5.1, 5.2, 5.3, 5.4, 5.5, Policy 6, Programs 6.1, 6.2, 6.3, 6.4, 6.5, and 6.6, and Policy 7, which would implement standards to assist City decision-makers in the evaluation of development proposals and management of geologic hazard areas. Site 27 (PUSD-Vineyard) is within the Vineyard Avenue Corridor Specific Plan Area, and it would be required to abide by the applicable geological requirements related to construction. Furthermore, any development consistent with the Housing Element Update would be required to comply with Chapter 20.08 (Pleasanton Building Code) of the Municipal Code, which implements the CBC and requires that foundations and other structural support features would be designed to resist or absorb damaging forces from on- or off-site landslide, lateral spreading, subsidence, liquefaction, or collapse. Chapter 17.12 (Geologic Hazards) requires the consideration of geologic hazards when considering applications and permits for new real estate developments or structures for human occupancy. Under Section 17.12.100 (Additional Regulations) of the Municipal Code, the HCD, with the consent of the City Council, may adopt such standards or regulations as are necessary to protect the public from seismic hazards. Future proposed projects located within areas containing unstable geologic units or unstable soils would be required to conduct an environmental analysis at the time a specific project is defined, including preparation of site-specific soils and geologic reports for review and approval by the City Engineer, and incorporation of the recommended programs during construction. (Draft Program EIR, Page 3.6-30–31). Potential Effect Impact GEO-4: Development consistent with the Housing Element Update, rezonings, and General Plan and Specific Plan Amendments would not be located on expansive soil, as defined in Table 18-1- B of the Uniform Building Code (1994), creating substantial direct or indirect risks to life or property. (Draft Program EIR, Page 3.6-31–32). Findings: Less than significant impact. Facts in Support of Findings: New development constructed on expansive soils could be subject to damage or become unstable when underlying soil shrinks or swells. The actual presence and extent of expansive soils can only be determined as part of site-specific soils and geologic reports. The General Plan includes several policies and programs specifically designed to protect people from injuries and minimize property damage resulting from geologic hazards, such as expansive soils. The General Plan includes policies and programs specifically designed to protect individuals from injuries and minimize property damage resulting from development on expansive soils by limiting development in certain areas and requiring increased review and mitigation where appropriate.