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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 />December 8, 2010 <br />Ron Thompson <br />New Elk Coal Company, LLC <br />122 West First Street <br />Trinidad, CO 80182 <br />Re: New Elk Mine (Permit No. C-1981-012) <br />Technical Revision No. 53 JR-53) <br />Development Waste Pile (DWDA) <br />Dear Mr. Thompson: <br />COLORADO <br />D IV IS I ON OF <br />RECLAMATION <br />MINING <br />SAFETY <br />The Division of Reclamation, Mining, and Safety (Division) has completed an <br />adequacy review of the materials received for Technical Revision No. 53 <br />JR-53) for the New Elk Mine. Please respond to the issues noted below in <br />bold text as soon as possible. <br />The Division is confused by the text narrative on page 2.05-44 when <br />compared to Figure 1 a. The text narrative states "Each 10 foot <br />bench will be placed in one foot lifts ...Setbacks of 20 feet for each <br />bench will result in an overall slope of 1.5H:1 V." Figure 1 a shows no <br />benching and depicts a uniform slope. Also, the plan view shows a <br />pile with a minimum crest width of one foot, yet the cross-section <br />indicates a minimum 20 foot crest width which is no represented in <br />the plan view. Please correct all design text, figures, descriptions, <br />etc. to be consistent. <br />2. Information regarding how the 100-year 24-hour storm runoff will be <br />diverted from above (north) of the DWDA was not provided. Please <br />provide updates to text narrative, Table 20(page 2.05-11), Table <br />21 (page 14-14a), and Map 13, as necessary, to clearly and <br />accurately show storm water diversion as required by Rule 4.09.2(7) <br />and 4.10.3(2). <br />3. Considering the revisions to Map 11 as a result of TR-54, please ensure <br />that all TR-53 maps are consistent with those changes and updates. <br />Office of <br />Mined Land Reclamation Denver - Grand )unction - Durango <br />Office of <br />Active and Inactive Mines