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2015-07-08_REVISION - C1982056
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2015-07-08_REVISION - C1982056
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Entry Properties
Last modified
8/24/2016 6:09:02 PM
Creation date
7/8/2015 2:05:50 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Revision
Doc Date
7/8/2015
Doc Name
Letter Application & Public Notice
From
Twenttymile Coal, LLC
To
DRMS
Type & Sequence
PR11
Email Name
JLE
DIH
Media Type
D
Archive
No
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Peabod <br />1111 ENERGY <br />Twentymile Coal, LLC <br />Jared Ebert, Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining, and Safety <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />(303) 866-3567 X8120 <br />bTO <br />0f <br />000 <br />29515 Routt County Road 27 <br />Oak Creek, CO 80467 <br />970.879.3800 <br />July 6, 2015 <br />RE: Twentymile Coal, LLC, Foidel Creek Mine (C-82-056) —Permit Revision (PR15-11) Wolf <br />Creek Reserve Development and Mining <br />Dear Mr. Ebert: <br />Twentymile Coal, LLC (TC) respectfully requests CDRMS approval of a Permit Revision to our <br />existing approved Permit, to include progressive development and longwall mining of the Wolf Creek <br />Coal Seam Reserve. Initial development, including development and placement of long-term support <br />for a 3 -entry rock -slope access, development of up to six sets of gate -roads and bleeder entries to <br />support future longwall development, and related ancillary activities, including underground <br />dewatering activities and extension of mine ventilation and support systems, has been approved and <br />the related work is proceeding under TR13-83. The requested Permit Revision addresses mining of <br />three of the initial panels (WC-9RT, 8RT, and 7RT (partial)) developed under TR13-83; subsequent <br />development (or partial development) of three additional panels in the Wolf Creek Reserve (WC-6RT <br />through 4RT); and mining of TC's owned and leased State and fee reserves in Panels WC-7RT <br />(remainder), and 6RT through 4RT (eastern). It also includes development of an internal <br />(underground) ventilation and utility shaft in the Wolf Creek main entries adjacent to the WC-8RT <br />Panel and an adjustment to shift a segment of the eastern Permit Boundary to the east (+160 acres). <br />Please note that the requested Permit Revision does not include any activities in the pending federal <br />lease modification area. Any activities in this area would be addressed by a future Permit Revision <br />application. <br />The proposed plan modifications are necessary to facilitate ongoing mining operations for the Foidel <br />Creek Mine and provide for a smooth and timely transition from the current mining operations in the <br />Wadge Coal Seam to development and mining of the recoverable Wolf Creek Coal Seam reserves. <br />Activities under the proposed mine plan modification will include underground continuous -miner <br />development of main and sub -main entries, gate -roads, and bleeder entries; longwall mining <br />operations; construction of an internal ventilation shaft; and related ancillary activities. This phase of <br />the Wolf Creek operations will not require construction of any new surface facilities, however, <br />longwall mining operations will result in controlled incremental subsidence of overlying areas which <br />have previously been subsided by recent mining operations in the Wadge Coal Seam. TC does <br />anticipate the potential future need for an additional ventilation shart at the eastern end of the W C -7R I <br />Panel, but design and permitting of this installation (if needed) will be addressed by a future permit <br />revision. <br />TC has previously mined the Wadge Coal Seam in Panels 3RT through TORT in the Eastern Mining <br />District (EMD), and 12RT through 24RT in the Northern Mining District (NMD). The Wolf Creek <br />
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