2010-04-26_PERMIT FILE - C1980007A

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 4/26/2010
• Section_Exhibit Name: Master Table of Contents
• Media Type: D
• Archive: Yes

West Elk Mine
Table of Contents (Continued)
Coal Seams and Related Strata ...........................................2.04-22
B-Seam ................................................................................... 2.04-22
E-Seam ................................................................................2.04-27
F-Seam ................................................................................2.04-32
Structural Geology ................................................................................ 2.04-33
Geologic Surface Features .................................................................... 2.04-34
Prominent Fracture Zones .................................................. 2.04-34
Weathering and Burn .......................................................... 2.04-36
Effects of Slopes .................................................................... 2.04-36
Steep Topography ................................................................. 2.04-36
Geologic Hazards and Slope Stability ................................................. 2.04-37
Landslides .............................................................................. 2.04-38
Deep Landslides .................................................................... 2.04-38
Shallow Colluvial Slides ....................................................... 2.04-42
Debris Avalanches ................................................................ 2.04-42
Debris Flows .......................................................................... 2.04-42
Potentially Unstable Slopes .................................................. 2.04-43
Rockfall .................................................................................. 2.04-43
Seismic Effects ...................................................................... 2.04-44
Ground Subsidence .............................................................. 2.04-44
Other Geologic Factors that May Affect Mining Conditions ........... 2.04-44
Groundwater ......................................................................... 2.04-44
Sandstone Channel Deposits ................................................ 2.04-48
Rolls ....................................................................................... 2.04-48
Rock Spars ............................................................................ 2.04-48
Seam Discontinuities ............................................................ 2.04-48
Soft Shales ............................................................................. 2.04-49
Methane ................................................................................. 2.04-49
2.04.7 Hydrology Description .......................................................................... 2.04-51
2.04.7(1) Groundwater Information .................................................... 2.04-51
Regional Groundwater Conditions ..................................... 2.04-53
Site Hydrogeology ................................................................. 2.04-58
Baseline Monitoring Program ............................................. 2.04-59
2.04.7 (2) Surface Water Information ................................................. 2.04-78
Surface Water Resources ..................................................... 2.04-78
Baseline Monitoring Program ............................................. 2.04-83
Spring Monitoring ................................................................ 2.04-87
Surface Water Quantity .......................................................2.04-92
Streams ................................................................................2.04-92
Surface Water Quality ....................................................... 2.04-105
2.04.7(3) Alternative Water Supply Information ............................. 2.04-114
Rev .03/06- PRIO; 04106-PRIG; 05106- PRIG; 09107- PR12; 02108- PR12; 04109- TR117