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EXHIBIT D <br />MINING PLAN (CONT.) <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 stormwater from contact- <br />ing the disturbed area. All stormwater contacting the disturbed <br />area will be retained on site and allowed to evaporate or soak in <br />to the underlying gravel. No U.S. Army Corps of Engineers-,.-..4-04 <br />permit is necessary, as there are no water bodies on the site nor <br />are there any wetland areas. <br />MINING TIMETABLE <br />This estimated mining timetable is based on an average year <br />and Grand County expects a specific year to vary widely from the <br />average. If there are changes in the mining timetable we will <br />discuss the reasons for the change in the annual report that <br />follows the change and modify it at that time. <br />ESTIMATED MINING TIMETABLE <br /> ACRES ± <br />OPTION ESTIMATED <br />YEARS TOTAL <br />AREA TOTAL <br />MINED MINED <br />100% MINED <br />SLOPES <br />#1 35-40 92.76 84.70 51.88 32.82 <br />#2 38-43 92.76 85.78 60.88 24.90 <br />11 (revised 9/23/09)