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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />October 22, 2010 <br />Kathleen G. Welt <br />Mountain Coal Company, LLC <br />P.O. Box 591 <br />Somerset, CO 81434 <br />Re: West Elk Mine (Permit No. C-1980-007) <br />Minor Revision No. 372 (MR- 372) <br />Subsidence Monitoring Plan - Monument Spacing and Seasonal Access <br />Dear Ms. Welt: <br />COLORADO <br />D IV IS I ON OF <br />RECLAMATION <br />MINING <br />SAFETY <br />Bill Ritter, Jr. <br />Governor <br />Mike King <br />Executive Director <br />Loretta E. Pineda <br />Director <br />The Division has completed a preliminary technical adequacy review of the above- <br />referenced submittal and has the following comments. <br />1. Please delete the following words from the last sentence on submitted page 2.05- <br />150: <br />"As with all required field work, including surveys and monitoring," <br />2. Please add the following sentence to page 2.05-153, immediately after the sentence <br />that begins "This monitoring". <br />If it appears the previously mentioned one-month timing will occur when <br />access will not be reasonable and safe, then the monuments will be <br />surveyed at least one time prior to the angle of draw intercepting the stream <br />channel and monitoring will resume when climatic and ground conditions <br />allow reasonable and safe access. <br />The current decision deadline for MR-372 is November 1, 2010. <br />Sincerely, <br />T ((f ??_ <br />Tom Kaldenbach <br />Environmental Protection Specialist <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines