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<br /> <br />EXHIBIT D - MINING PLAN NARftATT~JE (CONTINUEDI <br />(Revised 02/07/95) <br />Area 2A - The South Platte River channel improvements and slurry <br />wall will be installed in the areas shown on the <br />accompanying map after the relevant approvals are <br />obtained. The present plan calls for removal of the <br />existing berm along the southern portion of this area, <br />installation of two riprap trenches, and installation of <br />a grade control structure. The slurry wall along the <br />River will be installed behind (east and south) of the <br />riprap trenches and grade control structures. The exact <br />location,. and alignment of these improvements are <br />conceptually shown on the MINING PLAN MAP, EXHIBIT C-2, <br />but will be exactly determined by final engineering and <br />approval of UD&FCD. No mining will occur in this area, <br />until UD~FCD and any other relevant approvals are <br />obtained, and after approvals has been obtained, no <br />mining will occur north and west of the riprap trenches. <br />Area 2B - Approximately 8,000 cubic yards of topsoil/overburden <br />will be stored and temporarily revegetated in the 25' <br />setback area with the stored material from Area 1. This <br />topsoil/overburden storage will remain until the end of <br />mining to act as a permanent reserve for revegetation. <br />However, as much as possible, topsoil/overburden will be <br />immediately used in previously mined areas to build the <br />required slopes of the reservoir and for revegetation of <br />the banks/periphery areas. Topsoil/overburden may also <br />be temporarily stored on the future berm along the South <br />Platte River outside of the South Platte River floodway, <br />and/or in other 25' periphery setback areas. <br />Area 2C - Approximately 55,000± cubic yards will be stored along <br />the south 25' setback of that area to potentially <br />revegetate the entire 34± acres of Area 2C, although this <br />area will be filled with sand spoils as much as possible. <br />This topsoil/overburden storage areas will remain to the <br />end of mining to act as a permanent reserve for <br />revegetation. In the worst case, if approvals haven't <br />been obtained for wet mining on Area 1, for the slurry <br />wall, and for construction of channel improvements in <br />Areas 2A and 2B, mining to the water table may be <br />initiated in this area while the relevant approvals are <br />being obtained for the above items. <br />