_INSPECTION - C1981019 ‎(42)‎

• Permit No: C1981019
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 4/27/2009
• Email Name: JRS
• Media Type: D
• Archive: No

Colowyo C-1981-019
27 April 2009
Pg 2/4
Hydrologic Balance: - The Wash Bay Pond (not a NPDES discharge point) was not
inspected.
- The Work Area Pond (NPDES 002A) contained water approximately 1-1/2 feet below
the top of the discharge pipe and was not discharging at the time of the inspection.
The embankment was well vegetated and no erosional problems were noted. The
emergency spillway appeared to be stable.
- The Gossard Pond (NPDES 003A) contained water approximately five feet below the
primary spillway pipe and was not discharging at the time of the inspection. The
concrete sump at the inlet of the pond was full and appeared to contain some
sediment but did not need to be cleaned out. The pond embankment was well
vegetated and appeared to be stable and no erosional problems were noted. The
emergency spillway is a 12" culvert.
- The West Pit Pond (NPDES 008A) contained water approximately two feet below the
gated valve and was not discharging at the time of the inspection. There was water
in the presettling cell but it was not discharging into the main body of the pond. The
embankment was well vegetated and stable and no erosional problems were noted.
The emergency spillway appeared to be stable.
- The Rail Loop Pond (NPDES 006A) contained water approximately three feet below
the gated valve and was not discharging at the time of the inspection. There were
some coal fines at the inlet of the pond but they did not appear to be a problem.
The pond embankment was well vegetated and no erosional problems were noted.
- The Stoker Siding Pond (NPDES 005A) was not inspected.
- The East Taylor Pond (NPDES 01 OA) contained water approximately three inches
below the weep hole but was not discharging at the time of the inspection (there
was no water in the spillway below the outfall and it did not appear that the pond
discharged at all). The pond embankment was well vegetated and stable and there
were no signs of erosional problems.
- The Prospect Pond (NPDES 007A) contained water to the weep hole and was
discharging an immeasurable trickle at the time of the inspection. There was a small
amount of sediment at the inlet from the snowmelt runoff but very little in comparison
with past years. It appears that the measures implemented on the surface above
the Prospect Pond (contour ditches, repairing the riprap in the Prospect Ditch, etc.)
have been successful in,reducing the sediment load to the pond. The inlet area of
the pond that was repaired by Anson when they cleaned the pond over the winter
appears to remain stable. The pond embankment was well vegetated and no
erosional problems were noted.
- The Gulch A Pond (NPDES 004A) contained water approximately four feet below
the top of the discharge pipe and was not discharging. There was a small amount of
water flowing into the pond at the time of the inspection. There was also a small
amount of sediment at the inlet of the pond that did not appear to be a problem.
The pond embankment was well vegetated and stable and no erosional problems
were noted. Goodspring Creek was flowing pretty high as a result of the spring runoff
but the water still appeared to be clear at this point.
- The Section 16 Pond (NPDES 009) was inaccessible due to mud and not inspected.