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Peabody <br />Twentymile Coal <br />May 31, 2007 DECEIVED <br />Byron G. Walker f ~ 4 2~~7 <br />Colorado Division of Reclamation, Mining, and Safety JUN 0 <br />1313 Sherman Street, Room 215 Division of Reclamation, <br />Denver, Colorado 80203 paining and Safety <br />(303)866-4941 <br />29515 Routt County Road 27 <br />Oak Creek, CO 80467 <br />970.879.3800 <br />Re: Twentymile Coal Company - Foidel Creek Mine (C-82-056), Minor Revision MR07-215 Fiber-Optic <br />Borehole -Technical Adequacy Responses <br />Deaz Mr. Walker: <br />In response to your 05/25/07 a-mail outlining minor text and map edits necessary to meet Technical Adequacy <br />requirements; the following respond to yow comments: <br />Item 1 -Please correct the lack of continuity from the revised page 2.05-119 of 05/10/07 and the <br />unchanged page 2.05-120 of 03/13/06. <br />Resaonse: The referenced text pages have been reviewed and revised to provide for text continuity. Copies of <br />the revised pages accompany these responses. <br />Item 2 -Please add the Section lines and numbers on Map 24, Sheet I of 3 (Rule 2.10.1). <br />Response: The public land sub-division references have been added to Map 24 (I/3). Copies of the revised <br />map accompany these responses. <br />Item 3 -The application included a reclamation cost estimate of $800. The Division of Reclamation, <br />Mining and Safety (Division) estimate for the reclamation work is $442. The estimate submitted is <br />acceptable to the Division. Please let us know if you wish to accept the Division estimated in the <br />application. <br />Response: TCC accepts the CDRMS's bond calculation numbers. <br />Once you have had opportunity to review the accompanying information, please feel free to contact me with any <br />further questions or to discuss related matters. We appreciate your consideration and cooperation. <br />Best regards, <br />Twentymile i <br />Jerry <br />Supervisor <br />cc: Mike Berdine/TCC <br />Will Dennis/TCC <br />