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Peab c <br /> 1111 ENERGY <br /> Twentymile Coal, LLC 29515 Routt County Road 27 <br /> RECEIVE® OakC9.38 CO <br /> 80467 <br /> Tabetha Lynch, Environmental Protection Specialist JAN 0 9 2020 January 6, 2020 <br /> Division of Reclamation,Mining, and Safety <br /> 1313 Sherman Street,Room 215 DIVISION OF RECLAMATION <br /> Denver, Colorado 80203 MININGANDSAFETY <br /> (303) 866-3567 X 8147 <br /> RE: Twentymile Coal,LLC -Foidel Creek Mine(Permit No. C-82-056),Minor Revision(MR20-316)— <br /> Wetland Disturbance Boundary Modification <br /> Dear Ms. Lynch: <br /> Twentymile Coal, LLC (TC) requests CDRMS approval of a Minor Revision to our existing approved Permit <br /> for the modification of the Wetland Disturbance Boundary. To protect the Wetland Passive Treatment system, a <br /> wildlife fence is currently being installed around the system. In order to simplify the installation TC is <br /> requesting an addition to the current disturbance boundary. This change will add an additional 7.3 acres to the <br /> area being noted as disturbed. The reason to extend the current disturbance boundaries is that the geological <br /> terrain in that area prohibits the smooth installation of the fence. The area was squared off to allow for straight <br /> fence lines to be installed. <br /> This submittal includes a revision application form, revised Maps 23C (sheet 3 and base), 24 (sheet 2) & 29 <br /> (sheet 2 & sheet 4) showing the proposed boundary changes. This revision should cause no increase or decrease <br /> in the bond amount and therefore no bond estimate is necessary. We appreciate your consideration, cooperation, <br /> and assistance in facilitating timely review and approval of this revision application. After you have opportunity <br /> to review the accompanying information, please feel free to contact me with any questions or to discuss <br /> submittal materials or related matters. <br /> Sincerely, <br /> Twentymile Coal, LLC <br /> aa� <br /> Miranda Kawcak <br /> Environmental Manager <br />