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41 <br />storage pile #2. Subsoil at 23 inches results in 4,855 BCY of subsoil to be relocated <br />and stored temporarily at the subsoil storage area #1 west of topsoil storage pile #2. <br />The topsoil and subsoil storage areas are shown on Map -1 l Sheet 3. <br />Approximately 4,000 bank cubic yards of topsoil, assuming 9 inches thick, will be <br />salvaged from the reclamation area so subsoil stockpiles #2 and #3 can be constructed. <br />The 4,000 bank cubic yards of topsoil will be placed in Topsoil Stockpile No. 2. <br />(6) Overburden <br />Because the New Elk Mine is an underground operation the Operator does not plan to <br />remove any overburden during the operation of the mine. Blasting will be necessary in <br />the Refuse Disposal Area to excavate rock for under drain construction. Blasting may <br />be required in the development of the Bates Portal. Exhibit 26 contains the Operator's <br />blasting plan. <br />Construction of the Bates Portals will generate excess material that must be <br />temporarily stockpiled until reclamation is initiated. This material is not classified as <br />coalmine waste. Rule 2.05.3.6 provide guidance regarding temporary storage of <br />excess material. Temporary overburden disposal (storage) structures must comply with <br />the applicable performance standards of Rule 4. This rule states that information to <br />demonstrate compliance with Rule 4 shall include, if applicable, location, geometry <br />and method of placement of material. Approximately 25,000 bank cubic yards of <br />bedrock subsoil and 14,000 bank cubic yards of common subsoil from the Bates Portal <br />excavation will be placed in subsoil stockpiles #2 and #3 respectively. See figure 5b <br />for layout of the storage areas and cross sections. <br />The Bates Portal excess material will be hauled by truck to the disposal area where it <br />will be spread in maximum lifts of 24 inches and compacted. Compaction of the excess <br />material will be by the handling and spreading operation. Hauling equipment will be <br />routed both ways over the fill and routing varied sufficiently to achieve uniform <br />compaction. Compaction shall be carried to the edge of the fills so that the final <br />slopes are firm. Special compaction equipment will be used if necessary to achieve <br />densities to ensure mass stability, prevent mass movement and prevent formation of <br />voids. The excess material will be compacted to attain 90 percent of the maximum dry <br />density to provide the strength required for stability of the excess material disposal <br />area. Dry densities will be determined in accordance with AASHTO T99-74. <br />Compaction tests will be taken at a frequency and location of not less than one per <br />every other layer, at random locations across the pile. Test locations and results will be <br />reported to the Division in the appropriate construction reports. Some of the subsoil <br />may be utilized for construction projects at the site. <br />(7) Coal Handling Structures <br />Coal handling structures, which NECC will use at the New Elk Mine, are shown on <br />Section 2.05 RN -6 10/17/2016 <br />