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sc 130 Milbor-Pita <br />6t�°'Q$P1C <br />TABLE OF CONTENTS <br />Page <br />1.0 INTRODUCTION <br />1 <br />1.1 General <br />1 <br />1.2 Project Description <br />1 <br />1.3 Authorization <br />1 <br />2_9 PREVIOUS EXPLORATIONS <br />1 <br />3,0 FIELD AND LABORATORY PROGRAMS <br />2 <br />3.1 Site Explorations <br />2 <br />3.2 Laboratory <br />2 <br />4.0 SITE CONDITIONS <br />2 <br />4.1 Surface Conditions <br />2 <br />4.2 Subsurface Conditions. <br />3 <br />4.2.1 Regional Geologic Conditions <br />3 <br />4.2.2 S le Soil <br />3 <br />4.2.2.1 Fill <br />4 <br />4.2.2.2 Silty Clay <br />4 <br />4.2.2.3 Silty Sand — Recessional Outwash <br />4 <br />4.2.2.4 Till <br />4 <br />4.2.2.5 Silty Sand — Advance Outwash <br />4 <br />4.2.3 Groundwater <br />5 <br />5.0 CONCLUSIONS AND RECOMMENDATIONS <br />5 <br />5.1 Site Earthwork <br />5 <br />5.1.1 Pre-;ubgrade Preparation <br />5 <br />5.1.2 Over -excavation /Subgrade Preparation <br />6 <br />5.1.3 Imported Fill & Compaction <br />7 <br />5.1.4 Wet Weather Work <br />8 <br />5.2 Seismic Design Criteria <br />8 <br />5.2.1 General <br />8 <br />5.2.2 Regional Seismicity <br />9 <br />5.2.3 Soil Liquefaction <br />9 <br />5.2.4 Ground Fault Hazard <br />10 <br />5.3 Building and Structure Foundations <br />10 <br />5.3.1 General - Option Discussion <br />10 <br />5.3.2 Deep Foundations <br />10 <br />5.3.2.1 Allowable Axial Capacities <br />for Deep Building Foundations <br />10 <br />5.3.2.2 Design Parameters for Deep Foundations <br />11 <br />5.3.2.3 Lateral Resistance for Piles <br />15 <br />5.3.3 Spread Footings l� ssues <br />15 <br />5.3.4 Slab on Grade <br />15 <br />Ueotcchnicat,'Cunnel and Environmental Engineers <br />3080 1256 Ave NE Phone (425) 869-5778 <br />ncllnv , W A 98005 Fax (425) 961-0677 <br />