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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 />30 Apri12008 <br />Mr. Ryan Pawlowski <br />Colowyo Coal Company, LP <br />5731 State Highway 13 <br />Meeker, CO 81641 <br />Re: Colowyo Mine C-1981-019 <br />Preliminary Adequacy Review -Technical Revision 69 <br />Dear Mr. Pawlowski: <br />COLORADO <br />DIVISION O F <br />RECLAMATION <br />MINING <br />- St - <br />SAFETY <br />Bill Ritter, Jr. <br />Governor <br />Harris D. Sherman <br />Executive Director <br />Ronald W. Cattany <br />Division Director <br />Natural Resource Trustee <br />The Division has received your 22 January 2008 submittal of Technical Revision 69. <br />The revision is to modify the currently approved mine plan as shown on Map 23A. The <br />Division has reviewed the revision and has the following questions and comments. <br />1. On the currently approved Map 23A there is a purple area that delineates the <br />Section 16 mining area (the X-Pod area) that was approved with Technical <br />Revision 65. This layer was removed from the new Map 23A, submitted with <br />Technical Revision 69. Please add the layer that delineates the Section 16 <br />mining area (the X-Pod area) that was approved with Technical Revision <br />65 to the new Map 23A submitted with Technical Revision 69. <br />2. Both the currently approved Map 23A and the revised Map 23A show <br />highwall mining areas for the years 2008-2012. Colowyo is reminded that the <br />Division does not currently have an approved plan for highwall mining in the <br />South Taylor Pit. This is the subject of Stipulation 9, which states: <br />Prior to conducting any highwall mining in the South Taylor Pit the <br />Colowyo Coal Company shall submit a TECHNICAL revision to the <br />Division including a mining plan and sequence, a stability analysis <br />and a zero subsidence analysis and plan. Highwall mining may not <br />begin in the South Taylor Pit until the aforementioned revision has <br />been approved by the Division. <br />This concludes the preliminary adequacy review for the Colowyo Mine's Technical <br />Revision 72. Since the Division's decision date has passed, the Division requests that <br />Office of Office of <br />Mined Land Reclamatiori Denver Grand (unction Duraneo Artivn ~nrl Innr4i.~n AAinnc <br />