PERMFILE137420

• Permit No: C1981019
• IBM Index Class Name: Permit File
• Doc Date: 5/4/2007
• Doc Name: Geotechnical Investigations
• Section_Exhibit Name: Exhibit 07 Item 20 Part F -ST
• Media Type: D
• Archive: No

TABLE OF CONTENTS
•

SCOPE ............................................................. 1
SUMMARY OF CONCLUSIONS ......................................... 1
PROJECT DESCRIPTION .............................................. 1
PREVIOUS INVESTIGATIONS .......................................... 2
GEOLOGIC CONDITIONS ............................................. 2
INVESTIGATION ..................................................... 3
SUBSURFACE CONDITIONS ........................................... 4
SEDIMENTATION POND EMBANKMENTS ................................ 4
Engineering Properties .........................................5
Stability Evaluation .............................................6
Construction Recommendations .................................7
LIMITATIONS ....................................................... S
LIST OF REFERENCES .............................................. 10
FIG.1 -SITE PLAN
FIG. 2 -SUMMARY OF OVERBURDEN STRENGTH TEST RESULTS
FIG. 3 -SEDIMENTATION POND EMBANKMENT TYPICAL SECTION
APPENDIX A -SUMMARY LOGS OF EXPLORATORY BORINGS
APPENDIX B -RESULTS OF STABILITY ANALYSIS
KENNECOTT ENEROY
COLOlWO COAL COMPANY- 60UTN TAYLOR 6EOIMENTATION PONO
CTyT JOE NO. ]6,860
• Each. 7-20F-4 Revision Date: 1/05/07
Revision No.: PR-02