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Morrison Knudsen Corporation <br />• October 10, 1996 <br />Page 4 <br />we found no distinct advantage to the overall slope stability by placing fill to 90 % density. we <br />believe that the lower density at 85 % and a moisture content above optimum will mitigate the <br />expansion potential of the soils. Placement of the fill as described above will result in a uniform <br />fill at significantly lower densities and higher moisture contents than was encountered in the in- <br />situ material. we do not believe expansion of the reclaim slope fill to be a concern for the long- <br />term stability of the slopes. <br />If you have any questions, or if we can be of further service, please call. <br />Respectfully Submitted, <br />MA70M TECHNOLOGIES <br />Alan J. Lisowy, E.I.T. ~ ` • ~ ~ , '`' . <br />Reviewed By: /`j "~ ~•~ ~~ V <br />David H. Adams, P.E. ~^'•,~`-~ ~; <br />AL\ <br />enclosure <br /> <br />