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• 13 miles south from the City of Santa Ana is considered to be <br />one of the most dominant faults in regard to potential seismic <br />shaking impacts. The project site could potentially be subject <br />to a maximum credible horizontal ground acceleration of 0.30g <br />from a magnitude 6.9 earthquake along the Newport/Inglewood <br />fault zone. A seismic event of this scale could potentially <br />result significant damage to the proposed project. However, the <br />seismic risks at the project site would not be considered <br />significantly different from other areas in .the southern <br />California region. To minimize potential seismic shaking impacts <br />the proposed project would. be subject to seismic safety <br />standards of the Uniform Building Code.. Additionally, .the <br />proposed project would be required to prepare a construction- <br />level geotechnical report to address the seismic constraints on <br />the project site and to identify design recommendations to <br />insure the geotechnical stability of the project site. <br />A-3. Seismic-related ground failure, including liquefaction? <br />Less Than Significant Impact <br />Soil liquefaction occurs when loose soil deposits below the <br />• water table are subjected to large ground .accelerations <br />generated from seismic events. Liquefaction is generally known <br />to occur in saturated cohesionless soils at depths shallower <br />than about 50-feet. According to the Preliminary Geotechnical <br />Report prepared for the Armstrong Ranch Development Project, the <br />project site is considered to have low potential for <br />liquefaction. <br />A-4. Landslides <br />No Impact <br />The project area is flat without any .topographical relief. <br />According to geotechnical investigation prepared for the <br />Armstrong Ranch Development Project, there are no landslide <br />planes or slopes within the project area. Therefore, <br />implementation of the project would not result in adverse <br />impacts in regards to landslides. <br />B. Would the project result in substantial soil erosion or the <br />loss of topsoil? <br />• Potentially Significant Unless Mitigation Incorporated <br />1? 3'~i~5 <br />