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MOUNTAIN COAL <br />COMPANYL.L.C. <br />A Subs diary of Arch Western ak minous Grow. LLC <br />January 31, 2012 <br />Mr. Jim Stark <br />Colorado Division of Reclamation, Mining and Safety <br />Office of Mined Land Reclamation <br />1313 Sherman Street, Room 2I5 <br />Denver, CO 80203 <br />Re: Mountain Coal Company, LLC - West Elk Mine <br />CDRMS Permit No. C- 1980 -007 <br />West Elk Mine <br />P.O. Box 591 <br />5174 Highway 133 <br />Somerset, GO 81434 <br />(970) 929 -5015 <br />Fax (970) 929.5050 <br />Pond and Mine Site Quarterly Inspection Reports - Fourth Quarter 2011 <br />LRP Survey Report — Fourth Quarter 2011 <br />RPE Compaction Test Results (including Proctor) -- Fourth Quarter 2011 <br />LRP Survey Report — Third Quarter 2011 <br />Dear Mr. Stark: <br />Attached are Mountain Coal Company's (MCC's) Pond and Mine Site Quarterly Inspection Reports for <br />the Fourth Quarter of 2011 which include the Lower Refuse Pile (LRP) Survey Report and Refuse Pile <br />Expansion (RPE) Compaction Analytical Test Results. As required, this report was prepared by me, as a <br />Colorado Registered Professional Engineer, License Number 37264. <br />In addition, as you are aware, I am new to Mountain Coal Company, so this is the first CDRMS Quarterly <br />Report that I am submitting to CDRMS. In doing so, I noted that in the Third Quarterly Report for 2011, <br />the LRP Survey Report was inadvertently submitted with inaccurate survey data and missing some <br />quarterly survey data. That corrected survey report is also included for your review. <br />Should you or your colleagues have any questions or need further information concerning MCC's <br />Quarterly Pond and Mine Inspection Report, which includes the LRP Survey Report and the RPE <br />Compaction Test Results, please feel free to contact me at (970) 929 -2308. <br />Sincerely, <br />N , <br />Robin J SID " o, P.E. <br />Environmental Engineer �p0 REG /S <br />r <br />Enclosures: Pond Inspection Report - Fourth Quarter 2011 <br />Mine Site Inspection Report - Fourth Quarter 2011 <br />LRP Survey Report — Revised Third Quarter 2011 37264 '� a <br />LRP Survey Report — Fourth Quarter 2011 <br />RPE Compaction Test Results — Fourth Quarter 2011 <br />cc: K. Welt <br />C. Nyikos <br />Availability of Records File -- CDRMS <br />