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Colowyo C-1981-019 16 November 2005 Pg 3/5 Hydrologic Balance: -storage pond for water for the haul roads. The emergency spillway was stable and in good condition and appeared to be functioning as designed, The embankment was well vegetated and stable and there were no erosional problems noted. - The concrete sediment traps at the wash bay were both full at the time of the inspection but not discharging at the time of the inspection. These sediment traps discharge into the Wash Bay Sediment Sump. The Wash Bay Sediment Sump was full but was not discharging (into the Wash Bay Pond), The oil booms were in place in the middle of the pond and by the discharge, The embankment was well vegetated and stable and there were no erosional problems noted. - The Prospect Pond (NPDES 007A) contained water approximately seven feet below the riser pipe and was not discharging at the time of the inspection. The trash rack was in place on the riser and an anti-clogging device was placed over the weep hole, The embankment was well vegetated and stable and there were no erosional problems noted. -The Gulch A Pond (NPDES 004A) contained water approximately six feet below the riser pipe and was not discharging at the time of the inspection. The trash rack was in place on the riser and an anti-clogging device was placed over the weep hole. The embankment was well vegetated and stable and there were no erosional problems noted. Goodspring Creek was flowing at the time of the inspection. -The Streeter Pond (NPDES 001 A) contained water approximately two feet below the riser pipe and was discharging through the weep hole. This pond has been cleaned since the last inspection. The trash rack was in place on the riser and an anti- clogging device was placed over the weep hole. The embankment was well vegetated and stable and there were no erosional problems noted. -The culverts along the access road/haul road to the Gossard Loadout were all clear and appeared to be functioning as designed. Backfilling and Grading: -The regrading work at the southeast side of the East Pit is continuing, The operator is using the 101 dragline to pull material back up the slope and achieve a final grade of 3:1. The area is approximately 60% completed, with the bottom portion being almost finished (with the exception of approximately 3 acres that will need to be finished with a dozer). The area that remains is the area to the south and closest to the open East Pit. The large spoil pile that was on the northern portion of this area has been graded to blend. A dozer was used to cross-rip the regraded areas for erosion control. It is anticipated that this area will be completed by early spring 2006. - The East Pit is being backfilled up to the B-seam to allow for highwall mining of the B- seam. All of the highwall miner holes in the C-seam of the East Pit have been backfilled and covered as required, Approximately one third of the pit has been backfilled up to the B-seam (the western portion of the pit). The middle third of the pit has been filled approximately half way to the B-seam, The remaining third of the pit still needs to be filled, The operator is not filling the entire width of the pit, only a bench for the highwall miner. The remaining will be filled in with spoil on the north edge of the pit (presumably following the highwall mining).