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r '- <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 />29515 Routt County Road 27 <br />Oak Creek, CO 80467 <br />970.879.3800 <br />January 25, 2017 <br />Re: Twentymile Coal, LLC (TC) ---- Foidel Creek Mine (C-82-056), 2016 Annual Reclamation Report <br />Dear Ms. Lynch: <br />Enclosed are duplicate copies of the 2016 Annual Reclamation Report (ARR) for the Foidel Creek Mine. <br />During 2016, a number of permitted activities occurred under Permit, Technical, and Minor Revision approvals <br />(summarized as follows), with most of the permitted activities occurring within existing disturbance areas (no <br />change in acreage unless otherwise noted): <br />PR15-11, WCR Development and Mining wo/Federal Lease Modification (submitted 07/06/15, approved <br />02/25/16) <br />TRI 6-85, Hydrologic Monitoring Reduction (submitted 08/30/16, approval pending) <br />TR16-86, SWMD Thickener Underflow Borehole and Pipeline (submitted 09/05/16, approved 12/23/16, + <br />1.6 acres permitted but not yet disturbed) <br />MR15-294, 6MN Compressor Building Modifications (submitted 01/07/16, approved 02/24/16) <br />MR16-295, Passive Water Treatment System Geotech Investigations (submitted 03/09/16, approved <br />04/06/16, +0.1 acres disturbed) <br />MR] 6-296, 9 -East Utility Borehole (submitted 04/19/16, approved 05/19/16, +3.7 acres disturbed) <br />MR16-297, Fish Creek Borehole Coal Fines Cleanup/Remediation (submitted 05/26/16, approved 06/08/16, <br />+0.3 acres disturbed) <br />MRI 6-298, Fish Creek Borehole Flocculant System (submitted 06/02/16, approved 06/17/16) <br />MR 16-299, 10 -Right Second Pipeline (submitted 06/16/16, approved 06/30/16) <br />MR] 6-300, Washplant Modifications (submitted 06/21/16, approved 12/01/16) <br />MRI 6-301,Haulroad Bl Modifications (submitted 07/08/16, approved 07/27/16) <br />MR16-302, 9RT Air Vent Blower Boreholes (submitted 08/15/16, approved 08/15/16) <br />Changes in permitted disturbed and affected area acreages during 2016 included increases in the permitted <br />disturbed and affected acreage of 5.7 acres (TR16-86 and MR's 16-295, 296, and 297). Additional permitted <br />surface disturbance during 2016 resulted in a cumulative total for permitted surface disturbance of <br />approximately 733.8 acres, although actual disturbance is 729.0 acres (4.8 acres permitted but not yet disturbed). <br />Please refer to the revised maps and text associated with the revisions referenced above, for specific details. <br />Key mining and related activities occurring during 2016 included: <br />r Ongoing development and longwall mining operations in the WMD <br />➢ Additional soil material stripping and extension of the underdrain, ongoing refuse placement activities, <br />and reclamation of the completed second bench of the Coal Refuse Disposal Expansion Area <br />