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~1 <br />L_J <br />TABLE OF CONTENTS <br />1.0 INTRODUCTION ........................................................................................................ 3 <br />2.0 PROJECT BACKGROUND .......................................................................................... .. 3 <br />3.0 INSTRUMENTATION MONITORING .......................................................................... .. 4 <br />3.1 Vibrating Wire Piezometers .................................................................................. .. 4 <br />3.2 Inclinometers ...................................................................................................... .. 7 <br />4.0 SUMMARY OF PREVIOUS STRENGTH TESTING ......................................................... .. 7 <br />5.0 UPDATED STABILITY EVALUATIONS ........................................................................ .. 8 <br />5.1 Model Geometry .................................................................................................. .. 9 <br />5.2 Material Properties ............................................................................................... 10 <br />5.3 Pore Pressure Conditions ...................................................................................... 11 <br />5.4 Stability Evaluations ............................................................................................. 12 <br />6.0 CONCLUSIONS AND RECOMMENDATIONS ................................................................ 13 <br />7.0 REFERENCES .......................................................................................................... 14 <br />8.0 CLOSING ................................................................................................................ 15 <br />APPENDICES <br />• <br />• <br />APPENDIX A DRAWING 1 -SITE PLAN <br />APPENDIX B INCLINOMETER CUMULATIVE DISPLACEMENT PLOTS <br />APPENDIX C CU TRIAXIAL SHEAR RESULTS <br />APPENDIX D LIMIT EQUILIBRIUM STABILITY ANALYSIS OUTPUT <br />Bowie No 2 2008 Reevalution of Coal Mine Waste Stability.doc <br />Project #OS-126-GEO <br />Page 2 of 15 <br />