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<br />EARTH STRATA GEOTECHNICAL SERVICES Page ii March 30, 2023 Project No. 234812-10A <br /> <br />Active and At-Rest Earth Pressures ............................................................................................................18 <br />Subdrain System .............................................................................................................................................19 <br />Temporary Excavations ................................................................................................................................19 <br />Retaining Wall Backfill .................................................................................................................................19 <br />CONCRETE FLATWORK .....................................................................................................................................20 <br />Thickness and Joint Spacing ........................................................................................................................20 <br />Subgrade Preparation ...................................................................................................................................20 <br />GRADING PLAN REVIEW AND CONSTRUCTION SERVICES .........................................................................20 <br />REPORT LIMITATIONS ......................................................................................................................................21 Attachments: Figure 1 – Vicinity Map (Page 2) Figure 2 – Regional Geologic Map (Page 5) APPENDIX A – References (Rear of Text) APPENDIX B – Exploratory Logs (Rear of Text) APPENDIX C – Laboratory Procedures and Test Results (Rear of Text) APPENDIX D – Seismicity (Rear of Text) APPENDIX E – Liquefaction Analysis (Rear of Text) APPENDIX E – General Earthwork and Grading Specifications (Rear of Text) Plate 1 – Geotechnical Map (Rear of Text) <br /> <br /> <br />2130 E 4th St <br />2/11/2025