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EXHIBIT D MINING PLAN (coNT.) <br />water truck. Processing equipment may include but is not limited <br />to conveyors, crushers and screen plants. <br />As much as possible, the surface drainage will be maintained <br />in the same direction as it now exists. we have not had a <br />problem with surface water entering or leaving the site since <br />mining began in the 111 permit area. We do not expect this to be <br />a problem and the proposed sloping plan for the excavated area <br />should eliminate any concerns of erosion occurring on the site. <br />We have not experienced any unusual dust control problems on <br />the site to date. One can only estimate the amount of water <br />needed for dust control at this time, but since there is no water <br />on the site we will be hauling it into the site from a source <br />approved for that use. Most of the water used for dust control <br />will be used on haul roads. On a typical operation of this type <br />an operator may use 3 to 5 ac-ft per year. Please refer to <br />EXHIBIT G-WATER for the discussion of how water will be used at <br />the site. <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. This site is at the upper end of the runoff <br />drainage on the edge of the escarpment and we have not had a <br />problem with stormwater entering the site nor have we noted any <br />discharges leaving the site. No U.S. Army Corps of Engineers, <br />404 permit is necessary, as there are no water bodies on the site <br />nor are there any wetland areas. <br />MINING TIMETABLE <br />The continuing uncertainty of economic conditions in the <br />construction materials industry precludes an accurate forecast of <br />demand for materials during the life of the mine. we therefore, <br />elect to estimate the mining timetable based on an average year <br />and expect a specific year to vary widely from the average. If <br />there are changes in the mining timetable we will discuss the <br />reasons for the change in the annual report that follows the <br />change and modify it at that time. <br />ESTIMATED MINING TIMETABLE <br />ACRES ± <br />ESTIMATED <br />YEARS TOTAL <br />AREA TOTAL <br />MINED MINED <br />100$ MINED <br />SLOPES <br />14-16 40.32 30.44 27.07 3.37 <br />10 <br />