2018-11-05_PERMIT FILE - C1980007A ‎(3)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 11/5/2018
• Doc Name: E-Seam Projected Operations
• Section_Exhibit Name: Map 51
• Media Type: M
• Archive: Yes

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NOTES:
•Gateroad entries for longwall panels LWE1 through LWE8
were generally developed from west to east and then
longwall mined from east to west. These longwall
panels were/are being mined in order from north to
south within the coal lease areas shown.
LEGEND • The proposed western longwall panels LWE9 through
LWE12 will likely be the last E Seam panels mined due a�ND0 t1CF
Permit Area Boundary to the locations along the main entries. �'Zi so ►•A••bI/*%#.-
Coal Lease Boundar Federal Lease C-136� Excludes • The projected panel layout and timing were based on :�`' C'N;
the best available exploration data, professional THIS DRAWING WAS PREPARED UNDER 39802 ��
24. 8 Acres Under Minnesota Reservoir a.k. a. judgement, and markets at the time this map was MY SUPERVISION AND REPRESENTS -,
Independent Reservoir or Monument Dam) prepared. Pillar and panel dimensions may be adjusted INFORMATION THAT IS ACCURATE TO � ••••• .•••:��` '
within the Projected Potential Mining Area and permit THE BEST OF MY KNOWLEDGE Fs ••••.•••
Approximate limit of the maximum predicted 19° boundary if warranted by actual mining conditions, S�ONAL� �'
E—seam angle of draw. including coal thickness, coal quality, and geotechnical 1 r�
conditions to fulfill federal coal lease maximum a, �x i
Maximum Projected Areal Extent of economic recovery requirements.
Potential Mineable E—seam!. 1. See Exhibit 60E. The actual E-seam angle-of-draw
- has been conservatively calculated as 16.3° (See TR-146
Projected E Seam mining Appendix B of the Spring 2010 Subsidence Report.) Approved 1115118
The angle of draw is measured using the greatest
— MINED AREAS vertical distance between the top of the E seam at the ,
nearest edge of each longwall panel and the ground Mountain Coal Company
surface elevation equal to the point of no discernable
® — PROJECTED POTENTIAL MINING AREA THROUGH 2018 subsidence.
2. Also referred to as the "Projected Potential Mining
West Elk Mine, Mountain Coal Company, L.L.C.An Arch Coal Company
�` — PROJECTED POTENTIAL MINING AREA 2019—20,23 Area. " Although not anticipated (based on available 5174 HWY. 133 Somerset, CO 81434
data, as above), should mining be extended in this N MAP 51
area and beyond the projected E-seam miningshown,
— AREA OF IN—MINE EXPLORATION the associated projected impacts of subsidence have E-SEAM PROJECTED OPERATIONS
been evaluated in Exhibits 55B & 60E. DRAWN BY: SCALE: DATE REV.-REV.NO
GBG 1"=2000' 1-19-18 -TR-144 GBG
APPROVED BY: ACAD DWG NO.: 3-1 9-1 8 - PR-15 GBG
6-29-18 - PR-15 EDL
HAB/KW PR-15-M51-Rev2.DWG 9-6-18 -TR-146 GBG