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2009-07-22_REVISION - C1982056
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2009-07-22_REVISION - C1982056
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Last modified
8/24/2016 3:49:00 PM
Creation date
7/22/2009 4:08:03 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
REVISION
Doc Date
7/22/2009
Doc Name
Resource Recovery & Protection Plan Modification
From
Twentymile Coal Company
To
BLM
Type & Sequence
PR8
Email Name
JHB
Media Type
D
Archive
No
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P <br />CONFIDENTIAL <br />FEDERAL RESERVE CALCULATIONS R2P2 MOD11 <br />Lease/Panels Total Area - FtZ/Acres Mined Mineable Tons Recovery Recoverable Tons <br /> Thickness Ft Factor <br />COC-72980/17- through 14- 21,780,000/500.0 10.3 2,247,200 62.3 1,400,000 <br />Left <br />Totals 21,780,000/500.0 10.3 2,247,200 62.3 1,400,000 <br />Notes: Mineable tons are based on area, thickness, and a factor of 1895 tons /ac-ft (87 lbs/cu-ft) <br />Recovery factors reflect combined longwall (100% recovery) and development (continuous miner) mining, with factors varying <br />dependent on the proportion of development and longwall mining within the lease block. Overall recovery mine-wide is roughly 62%, <br />reflecting the significant development associated with the required main entries.
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