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Peabod <br />1111 ENERGY <br />Twentymile Coal, LLC <br />Mr. Jared Ebert <br />Colorado Division of Reclamation, Mining and Safety <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />303.866.3567 X8120 <br />29515 Routt County Road 27 <br />Oak Creek, CO 80467 <br />970.879.3800 <br />November 27, 2015 <br />Re: Minor Revision MR15-292, 13 -Left Outby Utility Borehole Cultural Resource Survey <br />Dear Mr. Ebert; <br />With this submittal, Twentymile Coal, LLC (TC) requests CDRMS approval of a Minor Revision (MR15-292) <br />to our existing approved Mining and Reclamation Permit, to complete minor ground -disturbing cultural resource <br />survey activities for the proposed 13 -Left Outby Utility Borehole installation (MR15-291). As summarized by <br />the attached Study Plan, TC would work with Metcalf Archaeological Consultants to lay -out, auger, and sample <br />a number of shallow auger holes in the proposed disturbance areas for the borehole pad and road to evaluate the <br />presence/absence, and significance of any cultural resource values in these areas. <br />Given that we will use a small mobile equipment unit (skid -steer), that the auger holes will involve very limited <br />temporary disturbance (8"-10" auger , approximately 3' deep), that the auger cuttings will be replaced in the <br />holes after evaluation for any cultural resource values, and that the subject areas will subsequently be disturbed <br />for road and pad construction, we are not reflecting any separate disturbance area acreage, no drainage controls <br />will be necessary, and these activites aill not be separately bonded. <br />This submittal includes revised PAP text and supporting materials. Once you have opportunity to review this <br />submittal, please feel free to contact me with any questions, or to discuss the submittal and related matters. We <br />appreciate your attention and assistance. <br />Best regards, <br />Jerry Nettleton <br />Manager En it mental Affairs <br />cc: M. Berdine/TC <br />E. Brady/TC <br />