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the CDRMS permitting efforts) and Panels 12RT though 21RT in the NMD. Both continuous -miner
<br />development and longwall mining will utilize the same equipment and methods that have been used for
<br />historic and ongoing mining in the Wadge Seam, and existing mine dewatering and ventilation systems
<br />will be used to support the proposed development and mining operations, with some expansion and
<br />modifications of the underground components.
<br />The coal reserves in TSN, R86W, Sections 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, and a portion of 22,
<br />which would be developed and mined under this plan modification, are owned by TC or controlled
<br />under existing State Coal Lease CO -3229. TC has submitted an application for a lease modification to
<br />the BLM for currently un- leased Federal coal reserves in portions of TSN, R86W, Sections 21 and 22,
<br />and anticipates issuance of the required lease modification during second quarter 2015. TC will be
<br />submitting a Federal Lease by Application for the recoverable Wolf Creek Reserves in the remaining
<br />portions of TSN, R86W, Sections 22 and 23 in 2015. Given, however, the timing for review and
<br />approval of this application, these areas are not included under this Permit Revision application. TC is
<br />or will also be negotiating new subsidence agreement(s) with the owners (Xcel, Tri- State, WAPA, and
<br />Public Service) of the powerlines which cross the western and northern portions of the Wolf Creek
<br />Reserve and with the Union Pacific (UP) for affected segments of the spur track. The agreements with
<br />Xcel for the newer powerline crossing the western portion of the reserve, and with UP for the affected
<br />portion of the spur track, should be in -place during second quarter 2015. Timing of the other
<br />agreements has not been defined, so permitting of mining for Panels WC -llRT, 12RT, 13RT, and
<br />14RT will be deferred until those agreements are in- place. Given these considerations, development
<br />and mining for Panels WC -4RT, 3RT, 2RT, and 1RT and mining for Panels WC -I IRT, 12RT, 13RT,
<br />and 14RT will be addressed under a future permit revision application. Surface owners for the subject
<br />reserves are TC, the State of Colorado, Ashley Investments, LLC, and Camilletti & Sons, with existing
<br />leases or agreements in place for affected surface areas not directly owned by TC.
<br />This submittal includes revised PAP text and supporting materials, as identified by the attached
<br />Summary of Revisions /Additions and the required Public Notice. Please note that since this Permit
<br />Revision application only addresses underground development and longwall mining, and the only
<br />associated surface disturbance will be incremental subsidence of previously subsided areas, there are
<br />no associated impacts on reclamation liability, and no bonding calculations are being submitted with
<br />this application package. We appreciate your consideration, cooperation, and assistance in facilitating
<br />timely review and approval of this revision application. After you have opportunity to review the
<br />accompanying information, please feel free to contact me with any questions or to discuss submittal
<br />materials or related matters.
<br />Best regards,
<br />Twentymile Coal, LLC
<br />Jerry . N t eton
<br />Manager vironmental Affairs
<br />cc: Pat Sollars/TC
<br />Mike Berdine /TC
<br />Ed Brady /TC
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