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<br />A Stormwater Discharge permit will be applied for concurrent with this operation. <br />(D) Size of the area to be worked at any one time: <br />Five to 12 acres per year are planned to be mined each year. Overburden and topsoil <br />from each mining area will be used to prepare the previous area for reclamation. <br />Excess topsoil will be stockpiled for future use where needed or removed for resale <br />offsite. <br />Mining will progress as shown in Exhibit C Mining Plan Map with fifty increments. <br />(E) An appropriate timetable to describe the mining operation and the relationship <br />between mining and reclamation: <br />Reclamation will follow mining as closely as operationally feasible. This will be <br />comparatively simple since reclamation will consist of filling the excavation with excess <br />overburden from successive mining areas. <br />When excavation is completed for a given area, it will be leveled where needed and six <br />inches of topsoil will be replaced and roughened for erosion control or returned directly to <br />farming operations, depending on the season. <br />(i) An estimate of the periods of time which will be required for the various stages <br />or phases of the operation. <br />It is planned to mine from five to 12 acres per year. Therefore the life the mine is 25 to 60 <br />years. However, the Arapahoe County Use by Special Review applies only through <br />December 2020. <br />CRS 34-321-112(b) (VIII) of the Act states: "A timetable estimating the periods required for <br />the various stages of the mining operation -the operator shall not be required to meet the <br />timetable, nor shall the timetable be subject tc independent review by the Board or office". <br />(ii) A description of the size and location of each area to be worked during each <br />phase: <br />As stated earlier, mining will proceed west to east in five to 12 acre increments. When <br />excavation of one of these incremental areas is completed, the successive area will be <br />stripped to provide growth medium and overburden for leveling the previous area. <br />(iii) Outline the sequence in which stage of the operation will be carried out: <br />It is planned to mine from five to 12 acres per year. <br />D-2 <br />