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Colowyo C-1981-019 12 December 2006 Pg 4/~ ~-~ Hydrologic Balance (cont.): Streeter Pond (cont.) -The emergency spillway is an open, trapezoidal riprapped channel. The spillway was stable and well maintained at the time of the inspection. This pond was cleaned last month, with 300 cubic yards of sediment removed. -The Gulch A Pond (NPDES 004A) was not inspected. This pond was, however, cleaned last month, with 400 cubic yards of sediment removed. - Sump 2 contained water approximately two feet below the top and was not discharging at the time of the inspection. The sump was stable at the time of the inspection. -Sump 3 contained water approximately four feet below the top and was not discharging at the time of the inspection. The sump was stable at the time of the inspection. -Sump 4 contained water approximately two feet below the top and was not discharging at the time of the inspection. The sump was stable at the time of the inspection. -Sump 5 contained water approximately one below the top and was not discharging at the time of the inspection. The sump was stable at the time of the inspection. Backfilling and Grading: -The operator has completed more work on the East side of the East Pit with the 101 dragline. The dragline has walked south to almost the final East Pit cut and has almost finished its first cut in the wedge it is working on. Once it completes this cut it will begin working its way back to the north. Support Facilities: -The facilities area was wet and muddy but in good condition at the time of the inspection. No problems were noted with the area. The operator has removed much of the old equipment from behind the office and shop areas and has regraded the area. They are in the process of upgrading the maintenance area in the yard, including some lights and covered work areas. This area will be used to park the equipment while it is being serviced and while it is waiting to be serviced. - The Gossard Loadout was wet but appeared to be stable and in good condition at the time of the inspection. The coal stockpile appeared to be lower than normal at the time of the inspection. General Mine Pian Compliance: -The operator was currently removing overburden from the D-Seam in the West Pit with the 103 dragline. The 101 dragline is in the East Pit performing reclamation. The 102 dragline was having its bucket replaced at the time of the inspection. -The 1 14 shovel operation was currently working on removing the X-Seam overburden. -The operator was dumping overburden in the mid-pit area of the West Pit.. - The mining at the Colowyo Mine appears to be progressing as discussed and approved in the PAP.