2008-01-16_APPLICATION CORRESPONDENCE - C2008086 ‎(3)‎

• Permit No: C2008086
• IBM Index Class Name: Application Correspondence
• Doc Date: 1/16/2008
• Doc Name: Preliminary Draft Environmental Impact Statement/Subsidence
• Media Type: D
• Archive: No

DRAFT
LIST OF FIGURES
(See EIS Figure Volume)
Figure No. Title Page

1 Red Cliff Mine Project and Coal Lease Areas ........................ 47
2 Plan View of Three Adjacent Longwall Panels ....................... 48
3 Estimated Gateroad Pillar Loads From Mining First Adjacent
Panel ..................................................... 49
4 Load Transfer Distance Data ..................................... 50
5 Estimated Gateroad Pillar Loads From Mining Second Adjacent
Panel ..................................................... 51
6 McClane Canyon Mine Workings .................................. 52
7 Subsidence Predicted for Five Selected Panels, McClane Canyon Mine.. 53
8 Subsidence Over Room-And-Pillar Workings After Pillar Failure........ 54
9 Localized Mining Induced Slope Angle Changes ..................... 55
10 Potential Collapse Heights Above Different Mine Opening
Geometries ................................................ 56
11 Cumulative Percent of Chimney Collapse Height .................... 57
12 Time Interval Between Mining and Surface Breached or Dropped....... 58
13 Overburden and Outcrop Map for the Project Area ................... 59
14 Estimated Angle of Draw in Relation to Percent Sandstone and
Limestone ................................................. 60
15 Cross Panel Compression Ridge in Alluvium, York Canyon Mine....... 61
16 Cross Panel Tension Cracks in Alluvium, York Canyon Mine .......... 62
17 Ribside Tension Crack On Steep Slope, York Canyon Mine............ 63
18 Ribside Tension Cracks in Road Fill and Cliff Face, York Canyon
Mine ...................................................... 64
19 Maximum Vertical Subsidence (SmeX) With Respect to Panel Width
and Depth .................................................. 65
20 Tension Crack Over Starter Room, York Canyon Mine ................ 66
21 Subsidence Monitoring Program .................................. 67
These figures are included in the attached EIS figure volume.
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