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MINING PLAN <br />1. General Mining Plan <br />EXHIBIT D <br />The property boundary has been surveyed on site and the permit area will be surveyed and marked <br />prior to any site disturbance. Map C -2 shows the mining plan. <br />The access to the site will be from County Lane 15, which approaches the site from the north. The <br />gravel deposit is mostly flat with 0 to 4 inches of topsoil, 6 to 10' of overburden, and gravel <br />thickness of approximately 20'. It is underlain by approximately 30 feet of Pierre Shale. Both the <br />gravel and the shale will be mined year around, but in varying quantities depending on demand. <br />Topsoil will be salvaged from all Mining Areas. The expected thickness of topsoil is <br />approximately 4 inches. Topsoil will be placed in the isolation berm around the pit as it is stripped. <br />Initial overburden will be stockpiled in the pit, but will be used to reclaim the site as mining <br />progresses. Gravel will be mined and taken to the crusher /screener by the loader. Mining will be <br />conducted in nine phases, which minimizes disturbed area and allows reclamation to take place <br />concurrently with mining. Mining will proceed from the current mining area, north into the <br />additional acreage. Stockpiles will be placed within the mining area to minimize disturbance areas. <br />Once ample room is created within the current pit, the overburden that is encountered will be <br />placed within this area. As mining progresses into the new area to the north, overburden <br />encountered will be used to reclaim previously disturbed area. The direct placement of this <br />overburden reduces the cost of mining and eliminates work that will be needed during reclamation. <br />This allows the total disturbed area to be as small as possible. Volumes of material are shown in <br />Table D -1 Mining Area Material Table. The mining areas and stockpiles are shown on Map C -2. <br />Korinek #1 Pit August 09 D -1 <br />