2013-01-29_PERMIT FILE - C1981022A (3)

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Sazirn - 2.05.4 Moss of the powerlines that cross the mine are owned and operated by Delta-Montrose Electric • Association and serve both OMI and other customers. These powerlines and associated powerline access/maintenance roads, and substations are the responsibility of the electrical utility and will be retained and maintained or reclaimed by the utility. Local electric distribution lines in facilities areas and between the main facilities area and the Bear and Hubbard Geek facilities areas are owned by OMI and will be removed on completion and cessation of all mining activities. A powerline constmttion/access road was constructed by U.S. Steel in conjunction with the Beaz Creek - Hubbard Creek poa~erline. This powerline and powerline access road have not been in use since the Somerset Mine was idled in 1986. They may, however, be utilized in the future if the Bear Geek or Hubbard Geek facihties are developed to support mining in the Elk Geek Mute. The BLM and an adjacent landowner have specifically requested that this powerline road be retained for access, so this road will not be reclaimed. Removal reclamation of the roads and powerlines will begin no later than one year after a decision to permanently cease mining operations has been made. A summary of the cosu for reclaiming the Elk Geek Mine facilities area u provided in Exhibit 2.03-E3, Insurance and Bonding Information. Sedimentation Ponds and Postxttining Drainages - In order to maintain effective drainage and sediment control for reclaimed mine disturbance areas during the reclamation liabihry period, the existing and proposed sedimentation ponds will remain in place until the DMG approves the release of reclamation liability and the associated bond surety. Generally, the associated undisturbed area runoff diversion ditches, disturbed area collection ditches, and localized drainage and sediment control features and Alternative Sediment Controk will either be retained during final reckunarion or reconstructed or replaced by postmining drainage structures during final grading. Ckt approval of release of both reclamation liability and the final bond increment, the re*r~a~n~ng sedimentation ponds and associated ditches will be removed and the associated disturbance areas rec]air~ed to complete • final site reclamation. Sedimentation ponds will be removed, unless separately approved in the future as permanent impoundmenu to support the postmining land use, and the associated surface disturbance areas will be regraded to blend with the surrounding terrain. Sedimentation pond reclamation will involve removal of discharge structures, grading of pond embankments into the pond basins, and grading of basin and embankment areas to blend with the surrounding terrain and reestablish effective drainage. Ditches will be reclaimed by reducing the ditch cross-settional profile by grading ditch sideslopes into the ditch channel and blending the regraded sideslopes with adjacent areas. Smaller ditches may be reclaimed and eliminated through natural siltation. When these ditches are no longer needed to control drainage and sediment, check dams maybe placed at regular intervak in the ditches to reduce flow velocities, trap sediment, and accelerate sediment deposition, allowing the ditches to silt-in over a short time interval. As previously described in the reclamation plan descriptions for individual mine disturbance areas, the following affetted stream channel segments either have been or will be relocated or reconstructed during development or reclamation of the associated mine disturbance areas. Design information for stream channel relocation or reconstruction is provided in Exhibit 2.05-E3, Drainage and Sediment Control Plans, and by the associated reclamation detail drawings, included in Exhibit 2.05-E3. • The affected segment of Beaz Geek adjacent to the Bear Geek Facilities area • The affected segment of Hubbard Creek adjacent to the Lower Hubbard Geek Facilities area • • The affected segment of Ells Geek running through the Elk Creek Coal Handling, Support, and Ancillary Facilities area • The affetted segments of Elk Geek adjacent to the Elk Creek Mute portal bench areas PR04 2.05-66 Revised August 2000