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ContentsTable of <br />1.0 <br />INTRODUCTION AND PROJECT UNDERSTANDING.........................................................................................1 <br />2.0 <br />FIELD EXPLORATIONS AND LABORATORY TESTING <br />.................................................................................1 - <br />2.1. <br />Field Explorations ........................................................................................................................................ <br />1 <br />2.2. <br />Laboratory Testing ...................................................................................................................................... <br />2 <br />3.0 <br />PREVIOUS SITE EVALUATIONS........................................................................................................................ 2 <br />4.0 <br />SITE CONDITIONS..............................................................................................................................................2 <br />4.1. <br />Geology .................................................. -----------------------------------------------------------------------------------------------------2 <br />4.2. <br />Subsurface Conditions...............................................................................................................................3 <br />4.3. <br />Groundwater Conditions ............................................................................................................................. <br />3 <br />5.0 <br />CONCLUSIONS AND RECOMMENDATIONS.................................................................................................... 3 <br />5.1. Summary of Key Geotechnical Issues.......................................................................................................3 <br />52. Earthquake Engineering ............................................................................................................................. <br />4 <br />5.2.1. Seismicity.........................................................................................................................................4 <br />5.2.2. 2018 IBC Seismic Design Information...................•.......................................................................5 <br />5.2.3. Liquefaction------------------------------------------------------------------------------------------------------------------------------------5 <br />5.2.4. Other Seismic Hazards-------------------------------------------------------------------------------------------------------------------5 <br />5.3. Subgrade Reaction Springs........................................................................................................................5 <br />5.3.1. Mat Foundation-------------------------------------------------------------------------------------------------------------------------------6 <br />5.4. Earthwork----------------------------------------------------------------------------------------------------------------------------------------------------6 <br />5.4.1. Site Preparation ................................................................... -------..................................................... <br />6 <br />5.4.2. Structural Fill .................................................................................................................................... <br />6 <br />5.4.3. Temporary Slopes and Excavations ..............................................................................................7 <br />6.0 LIMITATIONS......................................................................................................................................................7 <br />7.0 REFERENCES.....................................................................................................................................................8 <br />LIST OF FIGURES <br />Figure 1. Vicinity Map <br />Figure 2. Site Plan <br />APPENDICES <br />Appendix A. Field Explorations <br />Figure A-1 - Key to Exploration Logs <br />Figures A-2 through A-7 - Log of Borings <br />Appendix B. Laboratory Testing <br />Figures B-1 and B-2 - Sieve Analysis Results <br />Appendix C. Boring Logs from Previous Studies <br />Appendix D. Subgrade Reaction Spring Evaluation <br />Figure D-1- Position Loading Case 1 <br />Figure D-2 - Position Loading Case 2 <br />Figure D-3 - Position Loading Case 3 <br />Figure D-4 - PLAXIS 3D - Subgrade Reaction Spring Model <br />GEoENGINEERS June15,2022 rage? <br />