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1.0 PHASE I BOND RELEASE <br />This application for Phase I bond release of applicable Trapper Mine lands is submitted in accordance <br />with the Colorado Division of Reclamation, Mining and Safety (DRMS) Rule 3.03 (Release of Performance <br />Bonds) and Guideline Regarding Selected Coal Mine Bond Release Issues of April 18, 1995. With this <br />submittal, Trapper is proposing to release 417.8 acres of land, reclaimed during 2009, 2010 2011 and <br />2012, from Phase I bond liability as outlined on Map 1.0. This includes all lands that have been regraded, <br />with drainages reestablished in accordance with Trapper's approved permit document (C -81 -010), as <br />outlined on Map 1.0. <br />While Map 1.0 breaks out major watershed boundaries, the single block proposed for bond release <br />encompasses all recontoured watersheds as outlined. All reclaimed parcels that are included within this <br />Phase I bond release block are included on Map 1.0. <br />1.1 Post - mining Topography Demonstration <br />Map 1.0 provides as -built post- mining topography contours for all Trapper Mine lands regraded through <br />2012. The map was constructed from aerial photogrammetry data collected in October 2012. Post - <br />mining topography has been presented to and approved by the Division in the 2012 annual report <br />(Technical Revision, TR -111), the year that reclaimed land parcels are included in this bond release <br />request. Representative cross sections comparing as -built topography with approved topography would be <br />the same as those given in Permit Document C -81 -010; therefore, no cross sections are included in this <br />application. <br />1.2 Drainage Reestablishment Documentation <br />As explained in Section 1.1 for topographic cross - sections, drainage profiles comparing as -built and <br />approved drainage profiles will likewise be the same as those given in C -81 -010. All reestablished <br />drainages are delineated on Map 1.0. <br />Trapper Mine has spared no effort and expense in constructing reestablished drainages that effectively <br />control erosion and downstream sediment deposition. A variety of sediment control materials and <br />methods and sediment reducing measures have been implemented on reestablished drainages. <br />Rock check structures are used to dissipate the energy of flowing water within drainage channels. Debris <br />and sediment tend to be deposited and trapped upstream of structures. This in turn permits <br />establishment of vegetation behind structures which further stabilizes the channels. In addition, core <br />trenches are installed in rock check structures, thus providing additional structural support and reducing <br />the potential of downstream headcutting to move upstream. <br />1 <br />