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Colowyo C-1981-019 27 September 2007 Pg 2/7 Roads (cont.): -The road to where the 101 dragline was working in the East Pit area was stable and well maintained at the time of the inspection. No erosional problems were noted on this road. Hydrologic Balance: -The wash bay pond (not a NPDES discharge point) contained water approximately three feet below the top of the embankment and was not discharging. This is a total containment pond and discharge into the Work Area Pond triggers BTEX testing (in addition to regular NPDES testing). The operator and the contractors use this pond for water for their water trucks. The pond embankment was well vegetated and appeared to be stable at the time of the inspection. No erosional problems were noted on the pond embankment at the time of the inspection. -The work area pond (NPDES 002A) contained water approximately one foot below the top of the discharge pipe and was not discharging at the time of the inspection. The pond embankment was well vegetated and appeared to be stable at the time of the inspection. No erosional problems were noted on the embankment at the time of the inspection. There were numerous cow elk below the pond embankment. -The Gossard Pond (NPDES 003A) contained water approximately three feet below the riser pipe and was not discharging at the time of the inspection. The pond embankment was well vegetated and appeared to be stable at the time of the inspection. No erosional problems noted on the embankment at the time of the inspection. The emergency spillway is a 12" culvert. There is sediment in the pond that will need to be cleaned out this summer to maintain proper pond capacity. Tony Tennyson indicated that the pond would be cleaned sometime this fall. -The West Pit Pond (NPDES 008A) contained a small amount of water (to the bottom of the riser pipe at the bottom of the pond) at the time of the inspection. The presettling sump at the inlet of the pond also contained a small amount of water. The pond embankment was well vegetated and appeared to be stable at the time of the inspection. No erosional problems noted on the embankment at the time of the inspection. The emergency spillway is an open, trapezoidal riprapped channel. The spillway was stable and well maintained at the time of the inspection. -The Rail Loop Pond (NPDES OObA) contained water approximately two feet below the gated pipe and was not discharging at the time of the inspection. The pond embankment was well vegetated and appeared to be stable at the time of the inspection. No erosional problems noted on the embankment at the time of the inspection. -The Stoker Siding Pond (NPDES 005A) was not inspected. - All of the roadside ditches appeared to be stable and in good condition. The Colowyo Mine has received large amounts of rain in the past few weeks and everything appears to be holding up well. There were no erosional problems noted in any of the ditches at the time of the inspection.