2017-03-29_REPORT - C1982056

• Permit No: C1982056
• IBM Index Class Name: Report
• Doc Date: 3/29/2017
• Doc Name: Quarterly Subsidence Monitoring Report
• From: Twentymile Coal, LLC
• To: DRMS
• Permit Index Doc Type: Subsidence Report
• Email Name: TNL
• Email Name: DIH
• Media Type: D
• Archive: No

SubTerra, Inc. Twentymile Coal, LLC 4/11/2016
Wolf Creek Seam Extraction
100%
90%
80%
= 70%
E
in 60%
0
m
50%
c
m
U
Q 40%
a
ca
0
30%
c
m
20%
0
U)
10%
0%
O
O
Figure 2 - Maximum Subsidence vs Width/Depth Ratio for Wadge Seam Case Studies and
Wolf Creek Seam Projections at the Foidel Creek Mine
■ Wadge Seam Extraction
Panel Width/Depth
• Wolf Seam Extraction
NCO 00
�L•
NMD 9RIGHT Subsidence Prediction Mar 16 Rev 8: Fig 2 PN: 2013-26
:r.
■ Wadge Seam Extraction
Panel Width/Depth
• Wolf Seam Extraction
NCO 00
�L•
NMD 9RIGHT Subsidence Prediction Mar 16 Rev 8: Fig 2 PN: 2013-26