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~ TRAPPER DINING INC. ~ <br />iii iiiiiiiuiiii iii <br />999 <br />December 4, 1990 <br />Mr. David Berry <br />Colorado Mined Land Reclamation Division <br />215 Centennial Bldg. <br />1313 Sherman St. <br />Denvet, CO 80203 <br />Dear David: <br />y~ 1.~ _ -, ,~.~. <br />DEC :" :='J <br />h9ined Land <br />Rec!ama:ion =;`.'.'lion <br />Subject: Mitigation response for the overburden slide lopted at the south end of Cut 83 in Ashmore Pit. <br />Concerning our telephone conversation on 1129f90, Trapper Mine has successfully repaired the overburden <br />slide located at the south end of Cut 88 in Ashmore pit. During the week of November 19th, the Baby Doe <br />dragline cast spoils onto the toe of the slide in an effort to reinforce the embankment and create a safe envi- <br />ronment for Trapper personnel to work. Following dragline spoil placement, a D9N dozer was dispatched <br />to the area to seal the slide for safety purposes and to prevent surface water from entering the crevices. This <br />was accomplished by 1129FJ0. <br />In addition to the safety concerns, Trapper feared the slide could extend into undisturbed lands south of the <br />spoil and topsoil could be lost as a result of the slide's advance. This did not occur. Conditions of the slide <br />changed very little since your 10/15/90 inspection of the area. <br />In our mitigation plan submitted to the Division on 102990, Trapper stated that scrapers or dozers may be <br />used to salvage topsoil along the existing stripline to prevent possible contamination. Trapper does not <br />believe this additional disturbance will be necessary as our mitigation measures have halted further move- <br />ment of the slide. <br />David, we will keep you informed of any changes. If you have any questions or concerns, please call. <br />Sincerely, <br />~"'~'/ <br />~~ <br />William Agnew <br />Sr. Environmental Engineer <br />WA/jb <br />]CMLRDWEC04] <br />E.C. Johnson <br />J.M. Mattern <br />R.W. Fish <br />S.F. Beckett <br />W.S. Harding <br />R.L.Fanyo <br />file <br />P.0. Box 187 Craig, Colorado 81626 (303) 824-4401 <br />