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TABLE OF CONTENTS <br />LIST OF TABLES <br />LIST OF SHEETS <br />1. INTRODUCTION <br />2. SUBSURFACE CONDITIONS 2 <br />3. SEEPAGE ANALYSIS 4 <br />2.1 Lyman Henn Investigations 2 <br />2.1.1 Test Borings and Rock Coring 2 <br />2.1.2 Test Trenches 3 <br />2.2 Laboratory Investigations 3 <br />4. BACKFILL MIX DESIGN 5 <br />TABLES <br />FIGURES <br />4.1 General 5 <br />4.2 Backfill Components 5 <br />4.2.1 Backfill Mix 6 <br />4.2.2 Bentonite Slurry 6 <br />4.3 Backfill Mix Preparation 6 <br />4.4 Backfill Mix Results 7 <br />5. TECHNICAL SPECIFICATIONS 8 <br />5.1 Slurry Wall Alignment 8 <br />5.2 Slurry Wall Depth and Width 8 <br />5.3 Slurry Wall Key 8 <br />5.4 Slurry Wall Excavation 8 <br />5.5 Bentonite 8 <br />5.6 Slurry Wall Backfill Type and Placement 9 <br />5.7 Slurry Wall Working Platform 10 <br />5.8 Construction Water 10 <br />5.9 Slurry Wall Cap 10 <br />5.10 Site Reclamation 10 <br />5.11 Temporary Excavation Slope Considerations 10 <br />5.12 Quality Control Sampling and Testing 10 <br />REFERENCES 12 <br />G:\PROJECCS \111025 Geisert Gravel Pit Slurry Wall\O \O1 \Geisert Slurry Wall Design Report.doc <br />Page <br />iv <br />iv <br />1 <br />iii <br />