2006-10-26_PERMIT FILE - C1996083

• Permit No: C1996083
• IBM Index Class Name: Permit File
• Doc Date: 10/26/2006
• Doc Name: 10/26/2006 Stability Evaluation of proposed South Coal Wastepile Buckhorn Geotech
• Section_Exhibit Name: Volume XI Coal Mine Waste Disposal Area No. 3
• Media Type: D
• Archive: No

TABLE OF CONTENTS
1.0 INTRODUCTION ................................................ ..............................1
1.1 Referenced Documents ..................................................... ............................... 1
1.2 Scope ..................................................................................... ..............................1
2.0 BACKGROUND ................................................... ..............................1
3.0 LABORATORY TESTING ................................ ............................... 2
4.0 STABILITY ANALYSES ................................... ............................... 2
4.1 General .................................................................................. ..............................2
4.2 Soil Parameters .................................................................... ............................... 2
4.3 Piezometric Surface ............................................................. ............................... 3
4.4 Results ................................................................................... ..............................4
4.5 Discussion ............................................................................ ..............................4
4.6 Conclusions ........................................................................... ..............................5
5.0 GENERAL ............................................................. ..............................5
FIGURES
Figure 1 — Site Plan
APPENDICES
Appendix A — Laboratory Testing Results
Appendix B — Results of Stability Analyses
Appendix C — Results of Sensitivity Analyses