Reso13 PC 13-16 2898 PC Reso Recommending Stanford EIR Certification

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Facts in Support of Finding: Implementatian of Mitigation 15-5 tivould reduce potential expansive soifs impacts to a less-than-signifrca�t level by requiring detailed, site- specific geotechnica! inves#igations and solutions prepared by a registered engineering gealogist or geotechn+cal engineer, with revfew ar�d appro�al authority by the City Engineer. These facts are described in Draft �fR chapter 15 (Geology and Soils) on pages 15-1 through 15-15, which is hereby incorporated by reference. Impact: Impact 15-6: 5eismically Induced Settlement. Development of the proposed project would place new cammercial buildings in an area tf�at could experience rapid, excessi�e settlement in respanse ta earth�uake-induced ground shaking during the useful life of tf�e project impra�ements. MitigatEon: Mitigation 15-6. The detailed, design-le�el geotechnical in�estigations required under Mitigafion 15-9 for each project construction phase shall include a site- specific erraluation of the liquefaction and settlement potential at each proposed building Iocation. The in�estigations shall also propose measures as needed #o offset the eff�cts af liquefaction-induced settlement, either through stabilization of the most �ulnerable sand layers or through utilization of building foundation, utility connectian, and pa�ement designs that can withstand the anticipated degree of total and differential settlement. Finding: implementation of Mitigation 'I5-6 would rsduce these potential seismically induced settlement impacts to a less-than-significant level. Facts in Support of Finding: Impfementation of Mitigation 15-8 would reduce �otential seismically induced settlement impacts to a less-than-sign�cant level by requiring detailed, site-specific geotechnical investigations and solutians preparec! by a registered engineering geolagist or geotechnicai engineer, with review and approval authority by the City Engineer. These facts are described in Draft ERR chapter 15 (Gealogy and 5oils) on pages 15-1 through 15-15, which is hereby incarporated by reference. Hazards and Hazardous Mater�als Impact: Impact 92-9: Patentlal project-Related Exposure to Existing 5oil or Groundwater Contamination. Project-related excavafion and construc#ian activities, as wel! as project o�eratians, cauld expose on-site construction and maintenancs persannel and members of the public ta existing soil and groundwa#er contamination. Recammendations included in the August 2008 draft Si#e Management Plan (SMP) commissioned by Stanford University for the 5tanford development portion of the Precise Plan area identify the en�ironmental issues associated with �roject de�elopment site construction acti�ities (e.g., exca�ation, dewatering, etc.) and specify the contents of the site-specifc, construction period Health and Safety f'lan {HASP} that the construction contractor must prepare {a standard CaIOSHA requirement for work at hazardous waste sites). ATTY/RE50.2898/PC RE50 RECQMMENDING STANFORD EIR CERTIFICATION REV:0$-15-13 VR Page 21 of 5fi