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Colowyo C-1981-019 1 August 2007 Pg 2/7 ~ Roads (cont.): -The roads in the southern expanses of the West Pit for access to the Bower and Kiewit projects was well maintained and appeared to be stable at the time of the inspection. These roads run along the west edge of the West Pit and up to the top of the section 16 Pit on the west side. No erosional problems were noted on these roads at the time of the inspection. -The road to the 101 dragline 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 four 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 three feet 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. -The Gossard Pond (NPDES 003A) contained water approximately five 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 summer. - All of the roadside ditches appeared to be clean and functioning as designed at the time of the inspections. No erosional problems, sediment build-up or blow-outs were noted at the time of the inspection. -The West Pit Pond (NPDES 008A) was dry at the time of the inspection. There was a small pool of water in the presettling sump at the inlet of the pond. 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 flexible pipe that was placed on the edge of the West Pit Pond and West Pit Fill has been removed. - The Rail Loop Pond (NPDES OO6A) was inaccessible both days of the inspection due to trains being loaded.