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P <br />Ryan Pawlowski <br />lei p.d. Colowyo Coal Company <br />O 5731 State Highway 13 <br />Meeker, CO 81641 <br />T: 970-824-1578 <br />0 15 February 2010 <br />Mr. James R. Stark <br />Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining and Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />RECEIVED <br />FEB 18 2010 <br />Darling and Sa etY n? <br />Re: TR-85 Reclamation Bond Update and Consolidation, Colowyo Mine <br />C-1981-019 <br />Dear Mr. Stark: <br />Enclosed, please find two copies of materials provided for your review of the TR - <br />85 Reclamation Bond Update. This revision to the permit updates and consolidates <br />the two bonds currently held by Colowyo. The current bond resides within two <br />separate areas of Colowyo's permit. Volume 4 Exhibit 13 contains text for a $33.3 <br />million bond and includes all supporting maps for the East and West Pits and <br />Section 16. The South Taylor Bond, which is currently set at approximately $49.8 <br />million is contained in Volume 13 Exhibit 13A and includes all supporting maps for <br />this bond. <br />The total bond calculation currently is $83,156,939. With the approval of TR - 85, all <br />bond materials located in Volumes 4 and 13 will be removed and a consolidated <br />bond will be placed back into Volume 13 Exhibit 13A with all associated maps. Also, <br />Map 34, an old blueline map covering the Gossard Area, was redrafted to modern <br />format and is being replaced as part of this submittal. <br />The enclosed bond is calculated as a worst-case scenario through November 2012. <br />Primarily, as a result of lower production rates at Colowyo and associated volume <br />movements, the total bond for Colowyo has been reduced to $68,105,700. <br />Included with the revision package is an application form, the public notice, an index <br />sheet and other pertinent material associated with this revision application for The <br />Division's review. Also included are Map Insert Pages that will replace the current <br />maps residing in Volume 4. <br />Colowyo Coal Company - 5731 State Highway 13 - Meeker, CO 81641 <br />T+ 1 970 824 1578 - F+ 1 970 824 1598 - http://prospect.riotinto.org/irj/portal