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J~ <br />_• ILTt J~ C (.. , v III III III III'111111 <br />D EPAFTtdENT OE P: STUkAf !lf SUU~ <br />Hams D Sncrman. Ea c,n ~-~ ^ ~ r. 999 <br />~t in ~u ~.:~~ f - «~~:c:i.:~~~:~•riu~ <br />723 Centennial Build mu. 1313 Sherman Street <br />Denver, Colorado E0203 ~ el. (3031 8923567 <br />Hamlet J. Barry, II1, <br />Director <br />TO: Rick Pli11s ~--1 <br />.FROM: Jim Pendleton r ~~ ~~ U- ~a.~e-:1~" <br />RE: Recommendation-~on Reclamation of the 16284 Area of the <br />Energy Fuels kl Mine <br />Having examined the site in your company, Wednesday, May 19th, I forward <br />the following recommendations for pursuing stable reclamation of the <br />16284 area at Energy Fuels ~l coal strip mine: <br />1) The possible accumulation of moisture within the pit adjacent to <br />the low wall could cause stability problems if it were to <br />infiltrate the reclaimed spoil. In order to determine the actual <br />hydraulics, and mechanics of the situation, we will need to have <br />Energy Fuels submit the following information. <br />a) An axial cross section drawn along the base of the low <br />wall of the pit, showing the elevation of the base and <br />the top of the low wall as well as the projected final <br />reclaimed ground surface. This cross section should <br />extend from the southeastern end of the pit's low wall <br />to approximatelylS00 feet northwest of the natural <br />saddle in the original interrupted drainage. <br />b) Several cross sections drawn perpendicular to the low <br />wall of the pit, one cross section at approximately the <br />topographic saddle and one approximately1000 feet south <br />east of the saddle. These two cross sections should also <br />indicate the elevations of the base of the low wall, bottom <br />elevations of the mined pit, original ground surface topography, <br />and their proposed final reclaimed surface elevation. The <br />cross sections should extend from slightly northeast of the <br />natural drainage course to slightly beyond the high wall uphill <br />extent of the pit. These cross sections should allow Energy <br />Fuels personnel and our office to ascertain whether possible <br />accumulated ground waters could conceivably infiltrate the <br />reclaimed spoil above the top of the low Ha11 of the oit, and <br />the rehy cause mass movement of the reclaimed spoil, or ::hether <br />groundwater flow could occur tot.~ards the west with its lesser <br />(cont'd) <br />hiay 22, 1980 <br />