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side of the mesa. Generally, well graded material overlies the sill to the east while sandier <br /> overburden overlies the Pierre shale that overlies the sill in the western extents of the mesa. <br /> Topsoil, overburden, blasted shale, and separated waste fines will be stockpiled and used to <br /> backfill the slopes of mined out areas to a 3H:1 V slope during Reclamation as shown on Map F- <br /> 1. Stockpiles will be minimal and reclamation will occur concurrently with mining. Each phase's <br /> recovered materials will be used to reclaim the previously mined strip within the adjacent phase <br /> and will not be stockpiled. <br /> After overburden is removed and as necessary, the target sill and overlying shale, where present, <br /> will be drilled and blasted to specified rough size and sorted. A preliminary blast plan is included <br /> in Appendix 3 —Blasting Plan. Blasting will be completed by a contract licensed Operator who <br /> will provide a detailed final blast plan to the Division prior to any blasting as a part of mining. <br /> Overlying shale and the basalt sill will be coarsely blasted to an average size of 3' minus. Coarse <br /> blasted shale will be used as backfill in reclamation and excess coarse blasted shale will be <br /> blended with excess overburden in the dump. Blasted sill material will be loaded via front-end <br /> loader into a crusher where it will be further processed with respect to size and sorted into piles <br /> accordingly. Sorted and stockpiled sill material will be hauled off site to the market. Stockpiles <br /> of material will be located in the main processing area, see Map C-2. <br /> The main processing area will be stripped of topsoil and overburden and will be placed into <br /> a long term stockpile—a sediment control structure—along the eastern edge of the processing <br /> area (Figure 3). Overburden will be used to create the processing area sediment control structure <br /> in the southwest extent of the processing area and will be topped with recovered topsoil. Topsoil <br /> and overburden from mining Phase 1 may also be used in this way. The area will be gently <br /> sloped to allow for water to flow into the sump area. When road base becomes available <br /> following mining of Phase 1, the processing area will be capped with road base. <br /> Bradford Mesa Quarry Crag Loki and&WAincn.PI A A' <br /> January 2020 D-5 <br />