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1 <br />Il <br />I <br />J <br />11 <br />U <br />Landau Associates <br />TABLE OF CONTENTS <br />PAGE <br />1.0 <br />INTRODUCTION..............................................................................................................................1-1 <br />1.1 <br />Project Description.............................................................................................................1-1 <br />1.2 <br />Scope of Services................................................................................................................1-1 <br />2.0 <br />SITE CONDITIONS ........................... ................................................................................................ 2-1 <br />2.1 <br />Geologic Setting..................................................................................................................2-1 <br />2.2 <br />Hydrologic Setting..............................................................................................................2-1 <br />2.3 <br />Surface Conditions..............................................................................................................2-2 <br />2.4 <br />Subsurface Soil Conditions.................................................................................................2-2 <br />2.5 <br />Groundwater Condition......................................................................................................2-3 <br />2.6 <br />Soil Contamination.............................................................................................................2-4 <br />2.7 <br />Groundwater Contamination.............................................................................................2-4 <br />3.0 <br />CONCLUSIONS AND RECOMMENDATIONS....................................................................................3-1 <br />3.1 <br />Environmental Considerations...........................................................................................3-1 <br />3.2 <br />Contaminated Soil Handling and Disposal..........................................................................3-2 <br />3.3 <br />Health and Safety Considerations......................................................................................3-3 <br />3.4 <br />Site Preparation and Earthwork.........................................................................................3-3 <br />3.5 <br />Fill and Compaction............................................................................................................3-4 <br />3.6 <br />Utility Construction............................................................................................................3-5 <br />3.6.1 Construction Dewatering................................................................................3-5 <br />3.6.2 Trenching and Excavation Support..................................................................3-7 <br />3.6.3 Pipe Foundation Support.................................................................................3-8 <br />3.6.4 Pipe Bedding and Initial Backfill......................................................................3-8 <br />3.6.5 Trench Backfill and Compaction Criteria..........................................................3-9 <br />3.6.6 Reuse of Site Soils........................................................................................3-10 <br />3.6.7 Wet Weather Earthwork...............................................................................3-10 <br />3.7 <br />Below -Grade Pump Stations.............................................................................................3-10 <br />3.8 <br />Pavement Design..............................................................................................................3-11 <br />3.8.1 Access Roads................................................................................................3-11 <br />3.8.2 Trail Segments.............................................................................................3-12 <br />3.9 <br />Agricultural Soil Analyses.................................................................................................3-13 <br />4.0 <br />REVIEW OF DOCUMENTS AND CONSTRUCTION OBSERVATIONS <br />.................................................4-1 <br />5.0 <br />USE OF THIS REPORT......................................................................................................................5-1 <br />6.0 <br />REFERENCES...................................................................................................................................6-1 <br />' Geotechnical Engineering Report <br />Riverside Business Park <br />Public Access Trails and Roadway Improvements <br />0121030.010.011 <br />March 22, 2018 <br />