32A - TTM 2005-11, 2000 E FIRST - Laserfiche WebLink

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A-2. Strong Seismic Ground shaking? Less Than Significant Impact The project site is situated within a highly active seismic region of southern California. A total of 38 active faults have been identified within an approximate 60-mile radius of the project site. The NewportjInglewood Fault located approximately 8 miles south from the City and the Whittier Fault located 13 miles northeast of the City are considered to be the most dominant faults in regard to potential seismic shaking impacts. A seismic event along anyone of these faults could result in a 7.0 magnitude earthquake. A seismic event of this scale could potentially result significant damage to the proposed project. However, the seismic risks at the project site would not be considered to be significantly different from other areas in the southern California region. Through the City's development review process, the proposed project would be required to prepare a site-specific geotechnical study to evaluate seismic constraints and the building loads of the project and identify design recommendations to minimize potential seismic shaking impacts. Mitigation Measure . Prior to issuance of grading permits the proj ect developer shall prepare and submit for approval a geotechnical report that addresses seismic constraints, soil stability and provides design recommendation to insure the geotechnical stability of the project site. A-3. Seismic-related ground failure, including liquefaction? Less Than Significant Impact Soil liquefaction occurs when loose soil deposits below the water table are subjected to large ground accelerations generated from seismic events. Liquefaction is generally known to occur in saturated cohesionless soils at depths shallower than about 50-feet. According to the General Plan Land Use Element EIR, there is very low-to-Iow potential for liquefaction impacts. 12 32Ai~6