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RULE 4 PERFORMANCE STANDARDS <br /> highwinds slapping power lines together. The location of the fire is shown on Figure 4.12-7. The <br /> area that was burned is mostly comprised of sagebrush. Because the fire was not related to <br /> Colowyo's mining activities, Colowyo, as the surface landowner will reseed or managed the post- <br /> fire area, as it deems appropriate. <br /> Tri-State Generation and Transmission Association, Inc. owns and operates a 138kV power line <br /> that traversers through the east portion of the permit boundary. The 138kV line runs north to south <br /> through the reclaimed East Pit, and just east of the reclaimed Section 16 Pit. To ensure access to <br /> all pole locations along the power line for maintenance and emergency repairs, Tri-State will be <br /> improving existing ranch roads and/or constructing new roads to access their power line within the <br /> permit boundary. All of this activity will take place south of the reclaimed East Pit. Since these <br /> ground disturbing activities are not related to Colowyo's mining activities, the roads will not be <br /> permitted and bonded for in accordance with Rule 3.02.1(2). <br /> 4.13 Contemporaneous Reclamation <br /> All reclamation actives, including but not limited to backfilling, grading,topsoil,replacement and <br /> revegetation, will be carried out as contemporaneously as practicable with mining operations. <br /> Implementation of the reclamation plan, as described in Section 2.05.4, will assure that each step <br /> in the reclamation process is completed in a timely manner. <br /> Because of the multi-seam nature of the mining operation described in Section 2.05, backfilling <br /> and grading cannot be completed within 180 days following the coal removal. Backfilling and <br /> grading will be completed in variance of the 180 day requirement in a manner previously approved <br /> and described below, and in Sections 2.05 and 4.14.1. As shown on the mining Range Diagram <br /> (Map 24), mining will be carried out in any one area for a considerable length of time. A series of <br /> benches will be necessary in the operation to recover the lower coal seams,and an additional series <br /> of benches will be necessary to dump the shovel/truck overburden material in a configuration that <br /> achieves the topography shown on the post-mining Topography Map (Map 19). When multi- <br /> seams are mined, backfilling and rough grading cannot begin until the lower-most seam is mined. <br /> See Spoil Grading Map (Map 29), which shows the time frames in which grading will occur in <br /> relation to the time of removal of"X" seam coal, which is shown on the Mine Plan Map(Map 23). <br /> Topsoil will be removed prior to the mining disturbance according to the timetable established on <br /> the Topsoil Handling—South Map(Map 28). As can be observed from this map,the initial topsoil <br /> removed at the operation must be stockpiled; however, as the operation progresses,topsoil can be <br /> immediately redistributed rather than stockpiled. <br /> Revegetation will commence as soon as the topsoil has been redistributed and prepared for seeding <br /> as described in Section 2.05.4. The area will be seeded with the seed mixture described in Section <br /> 2.05.4 as quickly as possible. <br /> 4.14 Backfilling and Grading <br /> 4.14.1 General Requirements <br /> The mining operations of Colowyo will not employ the use of contour mining methods. <br /> Rule 4 Performance Standards 4-41 Revision Date: 1/22/20 <br /> Revision No.: TR-136 <br />