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Ponderosa Homes at 6900 Valley Trails Drive Initial Study and Negative Declaration it ii) Strong seismic ground shaking? X Iii) Seismic-related ground failure, including X liquefaction? iv) Landslides? X b) Result in substantial soil erosion or the loss of topsoil? X c) Be located on a geologic unit or soil that is unstable,or X that would become unstable as a result of the project, and potentially result in on- or off-site landslide, lateral spreading, subsidence, liquefaction or collapse? d) Be located on expansive soil, as defined in Table 18-1- X B of the Uniform Building Code (1994), creating substantial risks to life or property? e) Have soils incapable of adequately supporting the , X use of septic tanks or alternative wastewater disposal systems where sewers are not available for the disposal of wastewater? ENVIRONMENTAL SETTING The site is relatively flat, with limited grading required to excavate for utilities and construct the drainage, landscaping, and homes on the site. DISCUSSION a) The project site is located outside of the Alquist-Priolo Earthquake Fault Zone and outside of liquefaction and landslide zones, as identified by the California Geological Survey and reported in the Pleasanton General Plan.8 However, as is the case for most of California, people and property in Pleasanton are subject to risks from seismic activity. The active faults near the project site include the Calaveras, and Hayward fault lines. Based on an existing regulatory framework that addresses earthquake safety issues and adherence to the requirements of the California Building Code, seismically-induced ground shaking would not be a substantial hazard on this 8 City of Pleasanton. Pleasanton General Plan 2005-2025, Public Safety Element. Adopted July 21, 2009, Amended January 6, 2015. 22