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A Subsidiary of Arch Western Bituminous Group, LLC <br />July 26, 2011 <br />Mr. Tom Kaldenbach <br />Colorado Division of Reclamation, Mining and Safety <br />Office of Mined Land Reclamation <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />Re: Mountain Coal Company, LLC, West Elk Mine; Permit No. C- 1980 -007; Minor <br />Revision No. MR -379, Addition of Concrete Piers and I -Beam Braces on the Dozer <br />Feeder Wingwalls <br />Dear Mr. Kaldenbach: <br />Mountain Coal Company, LLC (MCC) submits this letter and application form for Minor <br />Revision No. MR -379 to add two concrete piers and additional I -beam braces to reinforce the <br />wingwalls of the dozer feeder to the P -1 conveyor belt to the Coal Preparation Plant. Two <br />reinforced concrete piers will be 2' wide, 6' long and 4' high, and will be on one -foot thick <br />reinforced concrete footers that are 4' wide by 8' long. Six 6" steel I -beam braces (totaling 120' <br />of I- beams) will be attached to the top of the piers and to existing beams on the back of the <br />wingwall. <br />MCC would like to begin this construction soon, so your prompt review and approval of this <br />revision application would be greatly appreciated. Please contact me at (970) 929 -2238 or by <br />e -mail should you have questions regarding this submittal. <br />Sincerely, <br />MOUNTAIN COAL <br />COMPANY._ .c <br />Kathleen G. Welt, <br />Environmental Engineer III <br />cc: Chris Nyikos — MCC <br />Doug Nolte — MCC <br />Joanne Williams — Gunnison Co. <br />West Elk Mine <br />P.O. Box 591 <br />5174 Highway 133 <br />Somerset, CO 81434 <br />(970) 929-2200 <br />Fax (970) 929 -5050 <br />R ECEIVED <br />JUL 2 6 2011 <br />Division of <br />Mining �rr)a#ion, <br />g and Safes, <br />