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liner will allow subsurface water to migrate into the rock drain system and be routed to <br />the RPE sedimentation pond. Phases III and IV subsurface will not be lined because of <br />the steeper slope grade (2.SH:1 V) and the greater clay content of the colluvium. <br />The reclamation of the RPE was approved with an average total of 18 to 24 inches of <br />subsoil and topsoil. A variance to cover the lower refuse pile was approved through TR- <br />43 in July, 1987. That variance was applied also to the RPE. As the RPE is graded and <br />covered with subsoil and topsoil, it will be revegetated with the approved permanent seed <br />mix. 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 lower <br />refuse pile (LRP). The haul road for the RPE will be reclaimed at the end of mine life to <br />approximate original contour. <br />A small waste pile at the Lone Pine ventilation fan site was approved through technical <br />revision #69 on August 12, 1994. The pile stores refuse from the development of that <br />facility. It covers 0.7 acres, storing 17,000 cubic yards of refuse. A subdrain system was <br />installed. The pile was covered with three feet of subsoil and one foot of topsoil and <br />reclaimed. <br />IX. Coal Mine Waste <br />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 in Volume 11 of the permit document. <br />2. No coal mine waste from the West Elk Mine is proposed to be returned to <br />underground workings (4.11.3). <br />Disposal of non-coal waste will be handled as required (4.11.4). <br />4. No dams or embankments constructed of coal mine waste have been or are <br />proposed to be constructed (4.11.5). <br />X. Backfilling and Grading <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 />During the course of MCC's study of the original West Elk lease property and the Jumbo <br />Mountain lease area, numerous slope failures and rock falls were identified. Landslides <br />and rockfalls identified during their study are delineated on Map 32 and 32A. However, <br />MCC also observed that it believes such slope problems would have a minimal effect on <br />the operation and these areas can be stabilized or removed when the facility is built. <br />43 <br />