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1111 Peabodq <br />Twentymile Coal, LLC <br />Mr. Jared Ebert, Environmental Protection Specialist <br />Division of Reclamation, Mining, and Safety <br />1313 Sherman Street. Room 215 <br />Denver. Colorado 80203 <br />(303) 866-3567 X 8120 <br />29515 Routt County Road 27 <br />Oak Creek, CO 80467 <br />970.879.3800 <br />August 9. 2016 <br />RE: Twentymile Coal, LLC - Foidel Creel: Mine (Permit No. C-82-056), Minor Revision <br />(MR16-302) — 9 -East Utility Borehole Equipment Pads <br />Dear Mr. Ebert: <br />Twentymile Coal, LLC (TC) requests CDRMS approval of a Minor Revision to our existing approved <br />Permit for installation and reclamation of three concrete equipment pads at the 9 -East Borehole <br />Installation. Plans for this installation were previously submitted and approved under MR16-296. <br />Subsequent to approval of MR16-296 and in reviewing operating requirements for the required <br />equipment at this location, our Engineering Group determined that while the required equipment will <br />be on skids, installation of concrete pads would be appropriate to maintain equipment alignment and <br />minimize any potential maintenance issues. TC, therefore plans to construct three concrete equipment <br />pads, as shown by the attached drawings (to be included in Exhibit 49EE — dimensions rounded up): <br />Borehole Collar Pad — 8' x 7' x 1' <br />Blower Skid Pad — 27' x 15' x 1.5' <br />Electrical Equipment Skid and Transformer Pad — 31' x 15' x 1' <br />The 9 -East Utility Borehole Installation (including the equipment pads) will remain in place until it is <br />no longer needed to support ongoing operations. and will then be reclaimed. Reclamation will involve <br />plugging and sealing the boreholes, breaking -up and hauling off the concrete pad materials. regrading <br />the pad and road, soil material replacement, and reseeding. <br />This submittal includes revised PAP text, exhibits; and maps, addressing the location. configuration. <br />and reclamation of the proposed 9 -East Utility Borehole equipment pads. New and revised PAP <br />materials are identified by the attached Summary of Revisions/Additions. We would like to proceed <br />with this project as soon as possible, to support our ongoing mining activities. We, therefore, <br />appreciate your consideration, cooperation, and assistance in facilitating timely review and approval of <br />this revision application. After you have opportunity to review the accompanying information. please <br />feel free to contact me with any questions or to discuss submittal materials or related matters. <br />Best regards, <br />Twentv o , LLC <br />Jerry . Net on1051, <br />Manager - ironmental Affairs <br />cc: Mike Berdine/TC <br />Ed Brady/TC <br />