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Peabod <br />1111 ENERGY <br />Twentymile Coal, LLC <br />Ms. Tabetha Lynch <br />Environmental Protection Specialist <br />Division of Reclamation, Mining, and Safety <br />1313 Sherman Street - Room 215 <br />Denver, Colorado 80203 <br />(970) 866-3567 X8147 <br />RF <br />EIVED <br />va 15 2019 <br />cme011 OF KIOLOW0N <br />MINING PND SAFV <br />29515 Routt County Road 27 <br />Oak Creek, CO 80467 <br />970.879.3800 <br />February 11, 2019 <br />Re: Twentymile Coal, LLC (TC) — Foidel Creek Mine (C-82-056), 2018 Annual Reclamation Report <br />Dear Ms. Lynch: <br />Enclosed are duplicate copies of the 2018 Annual Reclamation Report (ARR) for the Foidel Creek Mine. <br />During 2018, the five-year Permit Renewal (RN17-07) was approved, a Permit Revision addressing <br />development and mining of the pending Federal coal lease (PRI8-12)was submitted, and a number of activities <br />were permitted and initiated under Technical and Minor Revision approvals (summarized as follows), with most <br />of the permitted activities occurring within the existing Permit Area and within existing disturbance areas (no <br />change in acreage unless otherwise noted): <br />Permit Renewal RN17-07, Mid -Term Review combined with Renewal (submitted 10/27/17, approved <br />08/08/18) <br />Permit Revision PR18-12, Development and Mining of Additional Wolf Creek Reserves in the Pending <br />Federal Coal Lease -by -Application (submitted 11/14/18, approval pending, no new disturbance, on approval <br />permitted affected area will increase by 414.0 acres) <br />TR18-89, Stoker Coal Handling System Modifications (submitted 03/08/18, approved 05/18/18, no new <br />disturbance) <br />TRI 8-90, Additional Thickener Underflow Boreholes and Pipeline Extension (submitted 04/10/18, <br />approved 06/18/18, 10.3 acres new disturbance) <br />TR18-91, Additional Thickener Tank and Pond D Modifications (submitted 08/22/18, approved 10/24/18, <br />no new disturbance) <br />TR18-92, 7 -East Longwall Panel Extension (submitted 10/03/18, approval pending, on approval the <br />permitted area will increase by 40.0 -acres and the affected area will increase by 10.0 acres) <br />MR18-308, Coal Transfer to Twentymile (submitted 01/26/18, approved 01/29/18, no new disturbance) <br />MR18-309, Cold Storage Shed (submitted 05/02/18, approved 05/18/18, no new disturbance) <br />MR18-310, Longwall Yard Storage Building (submitted 08/09/18, approved 09/13/18, no new disturbance) <br />MR18-311, Second Thickener Pipeline and Refuse Bin Modifications (submitted 09/21/18, approved <br />10/03/18, no new disturbance) <br />Changes in permitted, disturbed, and affected area acreages during 2018 included an increase of 10.3 acres in <br />the permitted disturbed and affected acreage (TR18-90). Additional permitted surface disturbance during 2018 <br />resulted in a cumulative total for permitted surface disturbance of approximately 753.2 acres, although actual <br />disturbance is 748.4 acres (4.8 acres permitted but not yet disturbed). Please refer to the revised maps and text <br />associated with the revisions referenced above, for specific details. <br />Key mining and related activities occurring during 2018 included: <br />