2018-09-04_PERMIT FILE - C1980007A ‎(48)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 9/4/2018
• 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
DebrisFlows.......................................................................... 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
RockSpars............................................................................ 2.04-48
Seam Discontinuities............................................................ 2.04-48
SoftShales............................................................................. 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
SpringMonitoring................................................................ 2.04-87
Surface Water Quantity....................................................... 2.04-92
Streams................................................................................2.04-92
Surface Water Quality....................................................... 2.04405
2.04.7(3) Alternative Water Supply Information ............................. 2.04414
Rev .03/06, 04/06 & 05/06- PRIG, 09/07 & 02/08- PR12; 04/09- TR117, 08/09- TR118, 08/09- TR119; 01/10- TR120, 07/10- TR121; 08/18-
PR15