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B. Thus stripping and mining will continue so long as the material to be mined is <br /> suitable. <br /> C. Therefore, in the vicinity of the presumed silty pockets the mining direction <br /> may need to skirt around the perimeter,but the approach to mining will remain <br /> the same. <br /> D. The only effect these pockets may have is to potentially reduce the amount of <br /> land mined in the future. <br /> 2. The southern end of the permit area is highly dissected by erosion and it is not known <br /> how much mineable gravel is present in this area. It is possible that the most southerly <br /> portions of this area will not be mined once it is known how the deposit here fits in <br /> with the deposit to the north. However,this plan still contains a mining plan for this <br /> area. SEE DETAILED PLAN. <br /> Amount of New Land Opened for Mining at One Time: <br /> 1. Ideally, enough land is prepared at one time for mining an estimated 3 years. In the past <br /> the average acres per year mined has ranged from 3 to 10 acres with an average of <br /> about 5 acres. Therefore, on the average, about 15 acres is stripped at a time. <br /> 2. Obviously, in the vicinity of the indicated poor quality material, a smaller area would <br /> be opened on the questionable area and that would likely be accompanied by more <br /> acres on land where good quality material is likely to be. This opens the door to <br /> possible blending of materials which could extend the mining of the poor quality areas. <br /> This potentially maximizes resource recovery and utilization. <br /> Topsoil and Overburden Removal and Stockpiling: <br /> A. Topsoil removal occurs where a definite layer of topsoil can be identified and is of <br /> sufficient depth to allow for efficient stripping(Horizon A and upper B)without <br /> mixing overburden(Lower Horizon B, all of C, and below)with the topsoil. Where <br /> topsoil is missing(rare), thin or indistinct the soil is salvaged along with the <br /> overburden. <br /> B. Overburden does contain dark seams of paleosoils that contain organic matter. <br /> Overburden has been shown to have an acceptable growth capability as demonstrated <br /> by the growths on old stockpiles or reclamation areas. <br /> C. Stockpiling will be done near the location where it will eventually be used rather than <br /> the material hauled all the way to the north end of the operation and stockpiled there. <br /> Stockpiling there is now too expensive to do and too expensive to haul back to where it <br /> would be used. <br /> Fountain Pit Technical Revision#3 - June 2022 M-1982-155 Mining Plan Page 3 of 22 <br />