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MINING PLAN EXHIBIT D(CONT) <br /> plan for the excavated area should eliminate any concerns of <br /> erosion occurring on the site . <br /> On a typical operation of this type we may use up to 3 ac-ft <br /> of water per year. Most of the water used for dust control will <br /> be used on haul roads . Please refer to EXHIBIT G -WATER for the <br /> discussion of how water will be used at the site and the source <br /> of said water. <br /> There are no ditches crossing the site and no surface or <br /> subsurface water will be impacted by the mining operation. All <br /> interior pit slopes will be maintained with a pit-ward attitude <br /> so that historic drainage patterns can be maintained. This same <br /> slope management plan will prevent any offsite slides or other <br /> disruptions . Isolation berms or ditches will be constructed <br /> around the active mining area to prevent off site stormwater from <br /> contacting the disturbed area . All stormwater contacting the <br /> disturbed area will be retained on site and allowed to evaporate <br /> or soak into the underlying gravel . No U. S . Army Corps of <br /> Engineers 404 permit is necessary, as there are no water bodies <br /> on the site nor are there any wetland areas that will be <br /> disturbed by mining or reclamation. <br /> MINING TIMETABLE <br /> This estimated mining timetable is based on an average year <br /> and Colorado Crushing, Inc . expects a specific year to vary <br /> widely from the average . If there are changes in the mining <br /> timetable we will discuss the reasons for the change in the <br /> annual report that follows the change and modify it at that time . <br /> ESTIMATED MINING TIMETABLE <br /> _ ACRES ± <br /> OPTION ESTIMATED TOTAL TOTAL MINED MINED <br /> YEARS AREA MINED 100% SLOPES <br /> #1 28-38 96 . 34 83 . 71 55 . 97 27 . 74 <br /> #2 29-39 96 . 34 90 . 26 70 . 67 19 . 59 <br /> 11 <br />