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54 <br />The East Access Road from Highway 12 across the East River Crossing, <br />The access/haul roads to the West Portal and East Portal permit <br />boundaries. <br />The West Portal access road is also a recorded right-of-way granted to the <br />Division of Wildlife for access to their properties south of the mine property. <br />These facilities are shown on Map 15 Surface Disturbance/Post Mining Land Use <br />East Portal and Map 16 Surface Disturbance/Post Mining Land Use West Portal. <br />(c) Backfilling and Grading <br />Map 17 Post Mining Topography and Cross -Sections, shows the approximate <br />final surface configuration for the New Elk Mine facilities. Map 17 shows the <br />post mining topography and cross section in the West Portal and East Portal <br />areas. These areas are where either benches or cut slopes exist and will require <br />grading upon final reclamation. <br />The West Portal, refuse and silo areas shown on cross section A -A', B -B', C -C' <br />and E -E' respectively, can be graded to match the surroundings with a balance of <br />earth. The West Portal fan area will require some fill, which will consist of <br />demolition debris from the West Portal Industrial Building, covered with fill <br />material from the slope south of the Industrial Building. The non-toxic cover <br />material required to complete the final reclamation of the Development Waste <br />pile will come from the East Portal bench area south of the coal lab. <br />The post mining cross sections for the substation cut area planned for the rock <br />dustbin, and compressor building are shown in Figure 13a. The area cut material <br />will be relocated to the fill areas at the East Portal, graded and reclaimed to <br />approximate original contours. The West Portal, refuse and silo area have been <br />regraded and reclaimed with the exception of the fan and fan housing. <br />The operational and post mining cross sections for the Bates Portal cut area and <br />haul road are shown in Figure 13b. Fill material to return the area to <br />approximate original contour will be obtained from the material excavated, which <br />is stockpiled in subsoil stockpiles no. 1, 2 & 3. <br />Final grading will be the means by, which natural drainages intersecting the <br />disturbed area will be continued through the area. Map 17 Post Mining <br />Topography and Cross -Sections, shows the drainages that will be established <br />during final grading. Map 13B Post Mining Topography Drainage Basins, shows <br />the associated basins that the drainages will handle. Calculated discharges in <br />these drainages for the 100 -year 24-hour storm event were provided in Exhibit 19 <br />- Hydrologic Balance of Surface Runoff. Design criteria for these drainages are <br />Section 2.05 RN -6 10/17/2016 <br />