2014-07-02_INSPECTION - C2010089

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Mine Site Inspection Min Name: New Horizon North Pe rr ittee: Western Fuels, LLC Permit ID # C- 2010 -089 Inspection Date: June 03, 2014 Start Time: 9:50 a.m. End Time: 3:45 p.m. Weather Conditions: Slight Overcast, warm (65 degrees) and dry Participants: Mike Boulay, Colorado Division of Reclamation, Mining, and Safety (DRMS) Frank Ferris, New Horizon Mine North - Western Fuels LLC Tom Medlin, Office of Surface Mining Reclamation and Enforcement (OSMRE) Spencer Shumate, OSMRE Badge #545 Field Evaluation This was a complete oversight inspection. New Horizon North is a new federal surface coal mine with truck - shovel operations that began in mid -2013. At the time of this inspection, mining operations were working through the first box cut and preparing to advance the pit from south to north. Backfilling and Grading (Rule 4.14): Active reclamation was underway at the time of inspection. A 100 ton end -dump truck and a crawler dozer were backfilling the pit area. Roads (Rule 4.03): All roads were in good shape and well maintained. Adequate crowns on haul roads were sloped positively to ensure proper drainage. Roadside drainages were generally in good shape. Water trucks were active spraying water to keep dust down at the time of inspection. Coal Mine Waste (Rules 4.10 and 4.11): Coal processing facilities are not present nor are any proposed at the NHN mine area. All of the coal is transported to the power station by a transportation contractor. Any reject rock from a rotary breaker at the power plant may be transported back to the mine site and deposited in the pit at least 10' below the subsoil level. Non -coal wastes will be periodically transported to the county landfill. Hydrology (Rule 4.05): The approved permit specifies three drainage ditches for the permit area (NHN -001 East and West, the NHN -002 North and South, and the NHN -003 North and South). In addition to these drainages, the per it specifies three sedimentation ponds that each drainage reports to accordingly (Sediment Pond NH1 1, -2, and -3). However, since the NHN -1 drainage is in the initial phases of construction, drainage ditch NHN -1 East and West and Sediment Pond NHN -1 are the only hydrologic control features currently in place. The remaining hydrologic control features will be constructed as mining advances from south to north. NHN -1 Drainage Inspection of the NHN -1 drainage confirmed that it was stable and protected with a small rock material (1 "- 5 ") in areas where slope would need additional armoring as determined by the Arcadis engineering report during design. In addition, a product called Geoweb (GW30V) is used for armoring.