2009-12-29_REVISION - M1979131 (12)

Home Browse Search

MINING PLAN 1 -H. General Minine Plan EXHIBIT D The property boundary has been surveyed on site and the permit area will be surveyed and marked prior to any site disturbance. Map C -2 shows the mining plan. The access to the site will be from County Lane 15, which approaches the site from the north. The gravel deposit is mostly flat with 0 to 4 inches of topsoil, 6 to 10' of overburden, and gravel thickness of approximately 20' -k". It is underlain by approximately 30 feet of Pierre Shale. Both the gravel and the shale will be mined yew around, but in varying quantities depending on demand. Topsoil will be salvaged from all Mining Areas. The expected thickness of topsoil is approximately 4 inches. lbpsoil will be placed in the isolation berm around the pit as it is stripped Initial merburden will be stockpiled in the pit but will be used to reclaim the site as mining progresses. Gravel will be mined and taken to the crusher /screeier by the loader. Minim" will lie conducted in nine phases which minimizes disturbed area and allows reclamation to take place concurrently with mininst Minim, will proceed from thQ current mining area north into the additional acreage Stockpiles will be placed within the mining^-° -' he minod --u pfe • ; :1iiii++eQ area to minimize disturbance areas. Once ample room is created within the current pit, the overburden that is encountered will be placed within this area. As mining progresses into the new area to the north, overburden encountered will be used to reclaim previously disturbed area. The direct placement of this overburden reduces the cost of mining and eliminates work that will be needed during reclamation. This allows the total disturbed area to be as small as possible. Volumes of material are shown in Table D -1 Mining Area Material Table. The mining areas and stockpiles are shown on Map C -2. Korinek 91 Pit Augusl 09 D -1