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MINING PLAN EXHIBIT D(CONT) <br /> final slope location. A cross section is provided on the Mining <br /> Plan Map showing the proposed staking plan. <br /> As material is removed it will be hauled to the Plant Site where <br /> it is stockpiled until removed by the owners or sold as construc- <br /> tion fill material . No processing will take place at the mine as <br /> all mined material will be sold as pit run construction fill . <br /> The east and north lake slopes will be shaped 3h to lv as mining <br /> progresses to keep the length of back sloping needed if mining <br /> needed prematurely to a minimum. We estimate there will be 350 <br /> feet or less of slope work needed at any one time and adequate <br /> material will be left as explained above to do the final sloping. <br /> The groundwater varies from one to five feet below the top of the <br /> gravel , depending on the season of the year and whether it is a <br /> dry year or a wet year. The wet material will be piled adjacent <br /> to the pit for a short period of time so that it can drain and <br /> dry out partially before being moved out with a front-end loader. <br /> The below water material to be mined will be damp so no unusual <br /> dust control problems are expected. An estimate of water needs <br /> for the mine is outlined in EXHIBITG -WATER. The actual amounts <br /> needed will be addressed when we apply for the Senate Bill 120 <br /> Well Permit thru the Office of the State Engineer (OSE) . Most <br /> water will be used for dust control on haul roads and the pro- <br /> cessing site . On a typical operation of this type, 1 to 3 ac-ft <br /> per year is used. The OSE requires mine operators to use an <br /> amount equal to 4% by weight that is exported gravel for the <br /> material lying below the water table . There are no plans to <br /> wash the material . <br /> The setback lines on the map are the indication of the mining <br /> limits that are 25 feet inside the permit line, i . e . , the top of <br /> the slope into the mining area. The setbacks will be used to <br /> access the lake area around the lake and a soil material stock- <br /> pile areas . When they are no longer be used they will be re- <br /> claimed as prescribed in the Reclamation Plan. <br /> During mining all interior pit slopes will be maintained with a <br /> pit-ward attitude so that there will be no drainage off the <br /> affected land. This same slope management plan will prevent any <br /> offsite slides or other disruptions, and will also address some <br /> 10 <br />