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' EXHIBIT E (Cont'd) <br />1 <br /> Alining is being carried out in eight stages so as to minimize <br />' the disturbence at any one time. Also in order to minimize <br /> disturbence, the reclamation phase will start very soon after or <br />' h <br /> e <br />in conjuction with the completion of each mining stage. With t <br />' exception of Stage A, no more than two mining stages will ever be <br /> disturbed at the same time. For example, while Stage V is being <br />' mined, Stage IV, now called Phase IV, will be in the process of <br /> being recalimed. At the same time it should be noted that rec- <br /> te a <br />d <br />l <br />d <br />i <br />f Ph <br />0 <br />1 <br />2 <br />3 <br />ill <br />l <br />b <br />l <br />d A <br /> rea <br />y <br />e comp <br />e <br />n <br />on o <br />ases <br />, <br />, <br />, <br />an <br />w <br />amat <br />a <br /> that in Stage VI mining will not have been started. { See map <br /> Exhibit F.) <br />' Overburden, as described in Exhibit D, is sand or shaley <br /> sandstone and veries between 6 feet and 32 feet. The swell factor <br />' is com- <br />f <br />r this material is estimated to be 1 <br />27 <br />After minin <br /> . <br />g <br />. <br />o <br />' pleted in each stage, available overburden material will be <br /> used to back fill the excavation left by mining. The pit side- <br />' walls will br reduced to at least 3:1. The overall depth will <br /> be reduced in order to create a topography approching that of <br />' the surrounding area <br /> . <br />' Although careful regrading and resoiling will occure, <br /> basinal areas will remain after all backfill material is used. <br />' It is not expected that these low spots will create any problems. <br /> The backfill material is largely sand, and the material remain- <br />' ing on the pit floor is expected to be primarly sand and shaley <br /> sandstone. <br />' <br /> <br /> -17- <br /> <br />