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GEOTECHNICAL STABILITY EXHIBIT EXHIBIT U <br />There are no buildings or any structures outside the permit area which could be affected by the <br />operation. A minimum 25 foot buffer will be maintained from the permit boundary line to all <br />excavations. All reclaimed areas will be restored to relatively flat (<3.5%) slopes except for the <br />lake slopes, which will be reclaimed to a 311:1 V slope. The material of these slopes will be fine <br />overburden and fines from processing, which will be compacted during placement. These slopes <br />have always been very stable in all gravels and original soils in this area therefore; no detailed <br />stability analysis is presented. <br />Greg Lewicki, PE <br />Gehrman Pit October 09 U-1