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Peaboti
<br />Moffat County Mining, LLC
<br />29515 Routt County Road #27
<br />Oak Creek, CO 80467
<br />970 879.3800
<br />Mr. Zach Trujillo
<br />Environmental Protection Specialist
<br />Division of Reclamation, Mining, and Safety
<br />1313 Sherman Street - Room 215
<br />Denver, Colorado 80203
<br />(303) 866 -3567 X8164
<br />RE: Moffat County Mining, LLC. — Williams Fork Mines (Permit C -81 -044), 2012 Annual Reclamation
<br />Report (ARR)
<br />Dear Mr. Trujillo:
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<br />February 20, 2013
<br />Enclosed are duplicate copies of the 2012 Annual Reclamation Report for the Williams Fork Mines (formerly Eagle
<br />5 & 9 Mines). The CDRMS has indicated that, with recent reclamation activities, the Mine status has been changed
<br />to "active reclamation ", however, no new disturbance or reclamation was completed during 2012. Site
<br />maintenance and monitoring activities continued, as in previous years when the Mine was under the Temporary
<br />Cessation status, under the revised status.
<br />Moffat County Mining, LLC's (MCM) predecessor, BTU Empire Company, LLC (BTUEC), completed final
<br />reclamation grading, drainage reestablishment, soil material replacement, and revegetation seeding of
<br />approximately 17.1 acres, encompassing the No. 9 Portal Area and adjacent Refuse Disposal Area, in May 2009.
<br />Reclaimed areas were reseeded with the approved seed mixture that fall, and areas are inspected several times each
<br />year for any erosion or sediment transport concerns, invasive noxious weeds, and vegetative reestablishment.
<br />During 2006, the frequency of surface and ground water monitoring was increased to provide updated hydrologic
<br />information, in the event that Peabody Energy (MCM's parent company) decided to pursue further exploration and
<br />feasibility evaluations for the Williams Fork property, and the more intensive hydrologic monitoring continued
<br />during 2007 - through 2012. During 2007, there was an oil pipeline rupture, which resulted in a localized oil spill on
<br />the southern portion of the Mine property (outside of Mine Permit Area). Peabody Environmental Staff
<br />coordinated with the pipeline operator (Rocky Mountain Pipeline) on containment, clean -up, and remediation.
<br />Inspection of the affected area during 2008 indicated effective removal of oil contamination, restoration of effective
<br />drainage (several intermediate catch basins removed, but final catch basin remains in- place), placement of imported
<br />soil materials, and initial vegetative reestablishment. Visual inspection of this area indicates effective vegetative
<br />establishment.
<br />MCM contracted and completed field repair and stabilization of the eroded streambank in the abutment areas of the
<br />railroad bridge over the Williams Fork River during 2011. Minor repair of erosion and rodent holes was also
<br />completed for the Pond 5D embankments and the on the Access Road to the Mine No. 5A/6 Portals. It was noted
<br />that the siphon -tube under the Williams Fork River for the Worthington Ditch was exposed and damaged during the
<br />previous year's high spring flows. MCM reviewed options for transmission of flows in this Ditch, however, related
<br />repair and maintenance work has been deferred. During 2011 -2012, MCM also completed testing and removal of
<br />petroleum products, emulsion fluids, and other chemicals and chemicals wastes from the Shop[Warehouse, Multi -
<br />Services Building, and exterior storage tanks, and completed EPA compliant closure of the tanks, all using a
<br />licensed waste contractor.
<br />Ongoing maintenance activities included inspection and clean -out of drainage structures (as needed), and focused
<br />weed control activities under our Noxious Weed Management Program Additional, site - specific maintenance
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