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Environmental Checklist Geology and Soils Draft Initial Study – Mitigated Negative Declaration 63 land-use planning and permitting processes. The Seismic Hazards Mapping Act requires site-specific geotechnical investigations prior to permitting most urban development projects in seismic hazard zones. California Building Code (CBC) The California Building Code (CBC), Title 24, Part 2, provides building codes and standards for the design and construction of structures in California. The purpose of the CBC is to establish minimum standards to safeguard the public health, safety, and general welfare through structural strength, means of egress facilities, and general stability by controlling the design, construction, quality of materials, use and occupancy, location, and maintenance of building and structures. The CBC contains specific requirements for seismic safety, excavation, foundations, retaining walls, soil conditions, and site demolition. It also regulates grading activities, including drainage and erosion control. Chapter 16 of the CBC contains definitions of seismic sources and the procedure used to calculate seismic forces on structures. The CBC is updated every three years by order of the legislature, with supplements published in intervening years. State law mandates that local governments enforce the CBC. In addition, a city and/or county may establish more restrictive building standards reasonably necessary because of local climatic, geological, or topographical conditions. The 2022 CBC is based on the International Building Code. City of San Leandro 2035 General Plan Policy EH-1. Risk Management. Minimize risks from geologic, seismic, flood, and climate change- related hazards by ensuring the appropriate location, site planning, and design of new development. The City’s development review process, and its engineering and building standards, should ensure that new construction is designed to minimize the potential for damage. Impact Analysis a.1. Would the project directly or indirectly cause potential substantial adverse effects, including the risk of loss, injury, or death involving rupture of a known earthquake fault, as delineated on the most recent Alquist-Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? The project site is not within an Earthquake Fault Zone as defined by the Alquist-Priolo Earthquake Fault Zoning Act, and no known active or potentially active faults exist on the site (CGS 2016). The nearest known Alquist-Priolo Earthquake Fault Zone is the Hayward Fault zone located approximately one mile east of the site. Direct ground rupture of a known earthquake fault would be unlikely, and impacts would be less than significant. LESS-THAN-SIGNIFICANT IMPACT a.2. Would the project directly or indirectly cause potential substantial adverse effects, including the risk of loss, injury, or death involving strong seismic ground shaking? The nearest mapped active fault, the Hayward Fault, is one mile east of the project site (CGS 2016). The United States Geological Survey (USGS) has stated that there is a 72 percent chance of at least one magnitude 6.7 or greater earthquake striking the San Francisco Bay region between 2014 and 2043 (USGS 2016). Therefore, the site could be subjected to at least one moderate to severe