_INSPECTION - C1981019 ‎(45)‎

• Permit No: C1981019
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 5/18/2010
• Email Name: JRS
• Email Name: SB1
• Media Type: D
• Archive: No

Colowyo C-1981-019
18 May 10
Pg 3/7
Hydrologic Balance (cont.): - The West Pit Pond (NPDES 008A) contained a small
amount of water approximately three feet below the gated valve and
approximately eight feet from the top of the discharge pipe and was not discharging
at the time'of the inspection. There was also some water in the presettling cell but
that was not discharging into the main pond. There was no inflow from the ditch on
the north side of the West Pit Fill. The pond embankment was well vegetated and
stable and no erosional problems were noted.
- The East Taylor Pond (NPDES 01 OA) contained water approximately seven feet
below the top of the discharge pipe and approximately one foot below the weep
hole and was not discharging at the time of the inspection. There was no evidence
that the pond has discharged through the primary spillway (or weep hole) this
season. There was no water flowing into the pond (from the Taylor Tributary Ditch)
from the 2009 West Pit reclamation area in the West Pit at the time of the inspection.
The pond embankment was well vegetated and stable and no erosional problems
were noted. **See pictures at the end of this report.**
- The West Taylor Pond (NPDES 011 A) contained water approximately one foot below
the top of the discharge pipe and was discharging from the weep hole. The water
discharges into the Taylor Creek and it looked clear. There was water flowing into
the pond at the inlet (from the A-A' underdrain area of the West Taylor Fill). There
was a small amount of sediment at the inlet of the pond but it does not appear to be
a problem at this time. The pond embankment is well vegetated and stable and no
erosional problems were noted. The emergency spillway is a riprapped, open
channel, which appeared to be stable. **See pictures at the end of this report.**
- The Gossard Pond (NPDES 003A) contained water approximately three feet below
the discharge pipe and was not discharging at the time of the inspection. The pond
embankment was well vegetated and stable and no erosional problems were noted.
- The newly constructed portion of the Taylor Tributary Ditch remains stable and in
good condition. There is some sediment in the ditch from the spring runoff but the
ditch is open and water should easily be able to flow in the ditch. There were no
erosional problems noted in the ditch at the time of the inspection. Colowyo has
recut the contour ditches in the 2009 West Pit reclamation area. These contour
ditches break-up the long slopes and rout runoff into the Taylor Tributary Ditch. **See
pictures at the end of this report.**
- The Final East Pit Ditch and the North Tributary, East Pit Ditch both remain stable.
There is a small amount of sediment in these ditches from the spring runoff but overall
they are clear and appear to be functioning as designed. The 900 bend in the North
tributary, East Pit Ditch did not breach and remains stable. There were no erosional
problems noted in these ditches at the time of the inspection. **See pictures at the
end of this report.**
- The lower portion of the Prospect Ditch, which was constructed during the 2009
reclamation season, remains stable. There is very little sediment in the lower portion
of this ditch, probably due to its steeper grade. No erosional problems were noted in
the Prospect Ditch at the time of the inspection. **See pictures at the end of this
report.**