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Additionally, two temporary storage areas will be utilized. Area #1 (Map 25) will be used for rotary <br />. breaker rock refuse storage pile and Area #2 (Map 27 & 28) for coal refuse. <br />Prior to actual disposal in the refuse disposal areas, an access road from the haul road wilt be <br />constructed to the lower portion of the areas and the sedimentation ponds and lower parts of the <br />diversion ditches will be placed. Topsoil from the pond areas will be placed in the topsoil storage pile <br />and all fill material not required for embankment construction will be placed in the nontoxic fill storage <br />pile. Trees and brush will be removed and the topsoil will be stripped and placed in the topsoil storage <br />pile or on a refuse area being reclaimed. The topsoil storage pile will be mulched and seeded. After the <br />topsoil is removed, enough nontoxic fill to meet the minimum cover depth requirement of 30 inches (as <br />per DMG's approval) will be removed and placed in the nontoxic fill storage pile or on a refuse area ~ <br />being reclaimed. BME will document topsoil/cover soil material balance as future refuse area`- <br />development and reclamation progresses. <br />The nontoxic storage piles will be mulched and seeded to minimize erosion. The nontoxic fil in the <br />storage pile will normally be used for reclamation of the sub-area where removed, but may be~zed on <br />another sub-area if preceding area has been reclaimed during construction of a subsequent sub-area. <br />The topsoil thickness versus area information is given in Appendix IVA. <br />To minimize the area occupied by the topsoil and nontoxic fill (subsoil) stockpiles the face slopes were <br />set at 3h:1v and 2h:1v, respectively. Since these are relatively steep slopes, the faces of both stockpiles <br />will be furowed on the contour prior to reseeding. <br />A sediment V-ditch is constructed around the base of both topsoil and subsoil stockpiles. An earthen <br />berm with a rock filter at the low point is installed at the toe of the subsoil pile to drain the runoff collected <br />from precipitation events. The ditches are cleaned as required to maintain their required cross section. <br />See Maps 77 and 83. <br />The procedure followed far Sub-areas RP-1, RP-2/3 and RP-4 were repeated for Sub-area 5A. Light <br />utility roads were constructed along the west and east sides of Refuse Area #4 and #5 in order to repair <br />and replace lights on the power lines. A dozer access crossing was constructed between RP4 and <br />RPSA. <br />The merging of RA-2/3 and RA-4 began during the summer and fall of 1998. . <br />Map 76 shows how refuse lifts are constructed. Refuse is dumped in the area being filled and spread in <br />layers to dry. After drying, the refuse is built into layers not exceeding two feet and compacted to 90 <br />percent of maximum dry density {AASHTO Spec. T99-74) as required by Section 4.10.4. The refuse <br />material has to dry out before it can be compacted properly. During the winter months or at times when <br />the material cannot be propedy spread and compacted, the refuse material may be temporarily stored <br />on top of the refuse piles. <br />Mine Permit Renewal #3 (Rev. 1/00) IV-' 18 <br />