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603284-001 <br />• Collapse (ASTM D4546); and <br />• Soluble sulfate, soluble chloride, pH and minimum resistivity (CTM 417 Part <br />11, CTM 422, and CTM 532/643). <br />The results of the in-situ moisture and density testing are provided on the boring <br />logs in Appendix B. The remaining laboratory tests are presented in Appendix C. <br />Task 5 - GeologidSeismic Hazards Evaluation <br />We have performed a geologic/seismic hazards evaluation to define the geologic <br />environment and evaluate geologic-seismic hazards that may impact the site. <br />Using available data, we have developed information on the general geologic <br />conditions beneath the project and the locations of nearby active and potentially <br />active faults. The study addresses the potential for primary earthquake hazards <br />(ground shaking and surface rupture) and secondary earthquake hazards <br />(liquefaction, seismic settlement, seiches, earthquake-induced landsliding, and <br />lurching) impacting the site. We have also addressed the hazards of landsliding <br />and flooding at the site. <br />Task 6 - Ground Motion Study <br />We have performed a site-specific ground motion study in accordance with the <br />requirements of the 2010 California Building Code. A Probabilistic Seismic <br />Hazard Analysis (PSHA) and Deterministic Seismic Hazard Analysis (DSHA) <br />were performed to evaluate the risk of future earthquake ground motions at the <br />project site. <br />Task 7 - Engineering Analysis and Reports <br />The results of our subsurface explorations, laboratory testing, geologic/seismic <br />hazards, site-specific ground motion study, and engineering analyses are <br />summarized in the following sections. Geotechnical recommendations for design <br />and construction are presented in Section 5.0. <br />It should be noted that the recommendations contained in this report are subject <br />to the limitations presented in Section 6.0. An information sheet prepared by <br />ASFE (the Association of Engineering Firms Practicing in the Geosciences) is <br />also included as Appendix G. We recommend that all individuals using this <br />report read the limitations along with the attached ASFE document. <br />-5- <br />Leighton