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7.B. - Page 98 Redwood City Chapter 4.Environmental Impact Analysis Program PS-24: Geotechnical Analysis.Require a geotechnical analysis for construction in areas with potential geological hazards,and implement appropriate mitigation recommendations. As discussed below,with implementation of the mitigation measures and standard conditions identified in the 2007 FEIR,the proposed modifications to the project would not result in any new or more severe significant geology or soil impacts beyond those previously addressed in the 2007 FEIR and 2007 Addendum No. 1,and there are no other changes in circumstances,or new information that would necessitate any major modification of the geology and soils discussions in the 2007 FEIR and 2007 Addendum No. 1. Would the project: a. Expose people or structures to potential substantial adverse effects,including the risk of loss, injury, or death involving: a-1.Rupture of a known earthquake fault,as delineated on the most recentAlquist-Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? Less-than-Significant New Impact.The Alquist-Priolo Act requires the California State Geologist to identify areas in the state that are at risk from surface fault rupture.The proposed modifications are not within an Alquist-Priolo Earthquake Fault Zone. However,Redwood City,including the project site,is located within a seismically active region that has been subject to major earthquakes in the past.The major active faults in the area include the San Andreas Fault,San Gregorio Fault, Hayward Fault,and Calaveras Fault.The Monte Vista-Shannon,San Andreas,San Gregorio,and Hayward faults are at least 4 miles from the project site.As described in the 2007 FEIR(page 4.8-2),the project site is not located within an Alquist-Priolo Earthquake Fault Zone,and no mapped active fault traces are known to cross the project site.As a result,the potential for a surface rupture to occur at the project site is low.Therefore,potential new impacts related to rupture of a known earthquake fault is less than significant. a-2.Strong seismicgroundshaking? Less-than-Significant New Impact.As discussed in the response to 4.7.a-1,the proposed modifications are not located immediately adjacent to a fault zone.However,because of the project site's location within a seismically active region,in fairly close proximity to several major active faults,the project site is likely to experience strong groundshaking during the lifespan of the proposed modifications.As a result,all structures in the region could be affected by groundshaking in the event of an earthquake.The amount of groundshaking depends on the magnitude of the earthquake,the distance from the epicenter,and the type of earth materials between the receptor and the epicenter.The potential intensity of seismic shaking at nearby faults within the region could cause considerable damage to the fueling center and customers using the facility.Therefore,as prescribed in Standard Condition 4.8-1 (Standard Condition 4.8-1 in the 2007 FEIR [page 4.8-2]),all structures should be designed in accordance with applicable seismic provisions contained in the California Building Code.Compliance with standard design criteria and the California Building Code would be consistent with Program PS-23 in the General Plan and would reduce new groundshaking impacts to a less-than-significant level. Addendum No.2 to the Environmental Impact Report for 4-53 September 2012 the Redwood City Costco Wholesale Project ICF 00154.12