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West Elk Coal Co~iny, Inc. <br />Post Office Box 591 <br />Somerset, Colorado 81434 <br />Telephone 303 929 5015 <br />__ / <br />III IIIIIIIIIIIII III ~4 <br />999 <br />March 22, 1984 <br />Mr. Robert Liddle <br />Colorado Mined Land Reclamation Div <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />Dear Mr. Liddle: <br />erii~°~~9~9~~ <br />'~•1.:: . <br />G:I^ a-. _ ~ L ~ .. ~~ ,. <br />Enclosed is an amended revision for the West Elk Coal <br />Company, Mt. Gunnison No. 1 Mine, mine supply storage <br />area which addresses comments made by the Division in <br />a letter to Paige Beville dated February 14, 1984. <br />The configuration of the storage area and the amount of <br />fill to be placed was changed to make better use of the <br />space on the existing bench and to allow installation <br />of a more effective drainage system. <br />A stability analysis was run for the base area and the <br />proposed fill by G. G. Ramos, a registered professional <br />engineer with the Anaconda Minerals Company, Tucson <br />Research Center. This analysis reinforces the empiri- <br />cal proof that we at West Elk had previously stated <br />with respect to the stability effects of a minimal <br />amount of fill being placed on the existing bench. <br />The proposed fill itself also has an acceptable factor <br />of safety in the configuration shown. <br />Included in the amended revision are a detailed site <br />plan, runoff and sediment control plan, construction <br />methods and reclamation plan. <br />Should you have any questions regarding the revision <br />to Permit [JO. CO-007-80, please contact us. <br />Sincerely, <br />L, -~ <br />dig ,y./ Hansen <br />Chief Engineer <br />Dennis Conn <br />Mine Engineer <br />CGH/DC/jm <br />A61C0 62C- <br />