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reserves, which would be developed under this proposed Permit Revision, are approximately 150 feet
<br />below the Wadge Seam, and underlie Panels 7RT through l ORT in the EMD (TC is pursuing a federal
<br />Lease Modification and LBA for areas underlying Panels 9RT through 14RT in parallel with the
<br />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 9, 10, 11, 12, 13, 14, 15, 16, 17, which would be developed
<br />and mined under this plan modification, are owned by TC or controlled under existing State Coal
<br />Lease CO -3229. TC has submitted an application for a lease modification to the BLM for currently
<br />un -leased Federal coal reserves in portions of TSN, R86W, Sections 21 and 22. TC will be submitting
<br />a Federal Lease by Application for the recoverable Wolf Creek Reserves in the remaining portions of
<br />TSN, R86W, Sections 22 and 23 in 2015. Given, however, the timing for review and approval of these
<br />applications, these areas are not included under this Permit Revision application. TC is or will also be
<br />negotiating new subsidence agreement(s) with the owners (Xcel, Tri-State, WAPA, and Public
<br />Service) of the powerlines which cross the western and northern portions of the Wolf Creek Reserve
<br />and with the Union Pacific (UP) for affected segments of the spur track. An existing easement with
<br />subsidence rights addresses the newer powerline crossing the eastern portion of the reserve, and a new
<br />agreement with UP for the affected portion of the spur track should be in-place during second quarter
<br />2015. Timing of the other agreements has not been defined, so permitting of mining for Panels WC-
<br />IIRT, 12RT, ORT, and 14RT will be deferred until those agreements are in-place. Given these
<br />considerations, development and mining for Panels WC-6RT through 4RT (west), WC-3RT, 2RT, and
<br />IRT, and mining for Panels WC-llRT, 12RT, 13RT, and 14RT will be addressed under a future
<br />permit revision application. Surface owners for the subject reserves are TC, the State of Colorado,
<br />Ashley Investments, LLC, and Camilletti & Sons, with existing leases or agreements in place for
<br />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 />Manage vironmental Affairs
<br />cc: Pat Sollars/TC
<br />Mike Berdine/TC
<br />Ed Brady/TC
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