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<br />54 <br /> <br />with subsoil and topsoil, it will be revegetated with the approved permanent seed mix. <br />The seeding will be done either by broadcast or by hydroseeding and then mulched. <br />Interim and final revegetation will be conducted in the same manner as for the LRP. <br />The haul road for the RPE will be reclaimed at the end of mine life to approximate <br />original contour. <br /> <br />A small waste pile at the Lone Pine ventilation fan site was approved through TR-69 on <br />August 12, 1994. The pile stores refuse from the development of that facility. It covers <br />0.7 acres, storing 17,000 cubic yards of refuse. A subdrain system was installed. The <br />pile was covered with three feet of subsoil and one foot of topsoil and reclaimed. <br /> <br />The RPEE was approved with TR-121 in 2010, and was under construction in 2011. <br />This pile has an approximate maximum capacity of 4 million cubic yards. Colluvium is <br />to be left in place underneath the refuse pile, and an underdrain is to be constructed on <br />top of the colluvium after 24 inches of soil is removed and stockpiled. Ditches designed <br />for a one hundred year storm will be constructed on either side of the pile. These ditches <br />are approved as permanent structures. Runoff from the RPEE will go to the RPE ponds. <br />The East RPE will be reclaimed progressively as successive benches are constructed. <br /> <br />IX. Coal Mine Waste <br /> <br /> 1. The Division proposes to approve a plan for extinguishing coal mine waste fires. <br />This plan has been approved by MSHA and contains provisions about who will be <br />involved in the extinguishing operations (4.11.1). The plan can be found in Exhibit <br />65 of the PAP. <br /> <br /> 2. No coal mine waste from the West Elk Mine is proposed to be returned to <br />underground workings (4.11.3). <br /> <br /> 3. Disposal of non-coal waste will be handled as required (4.11.4). <br /> <br /> 4. No dams or embankments constructed of coal mine waste have been or are <br />proposed to be constructed (4.11.5). <br /> <br />X. Backfilling and Grading <br /> <br />The Backfilling and Grading plan can be found throughout Section 2.05.4. Exhibit 54 <br />of the permit document contains detailed information regarding abandonment and <br />sealing of portals. Maps 58, 58A, 58B, and 59 show post-mining topography. <br /> <br />During the course of MCC's study of the original West Elk lease property and the <br />Jumbo Mountain lease area, numerous slope failures and rock falls were identified. <br />Landslides and rockfalls identified during their study are delineated on Map 32 and <br />32A. However, MCC also observed that it believes such slope problems would have a <br />minimal effect on the operation and these areas can be stabilized or removed when the <br />facility is built. <br />