INSPEC05231

• Permit No: C1981019
• IBM Index Class Name: Inspection
• Doc Name: Inspection Report
• Inspection Date: 8/1/2007
• Media Type: D
• Archive: No

Colowyo C-1981-019
1 August 2007
Pg 3/7 ~-~_
Hydrologic Balance (cont.): -The East Taylor Pond (NPDES O1 OA) contained a small
pool of water at the bottom 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 an open, trapezoidal riprapped channel.
The spillway was stable and well maintained at the time of the inspection.
-The Stoker Siding Pond (NPDES 005A) contained water approximately four feet
below 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 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. There is some
sediment at the inlet of this pond but it is not known whether it will be cleaned this
year.
-The Prospect Pond (NPDES 007A) did not contain any water and was only muddy in
the bottom of the pond 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 an open, trapezoidal riprapped channel. The spillway was
stable and well maintained at the time of the inspection. This pond was cleaned last
year and it does not appear as though it will need to be cleaned again this year.
-The Gulch A Pond (NPDES 004A) contained a small pool of water, approximately six
feet below 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 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.
Goodspring Creek was flowing at the time of the inspection.
-The Streeter Pond (NPDES 001 A) contained water approximately one foot below the
discharge pipe and was discharging through the weep hole at the time of the
inspection. The discharge appeared to be clear. 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 operator is
having problems with the muskrats again trying to block the weep hole to keep the
water in the pond. Colowyo was going to place mesh wire around the riser pipe to
keep the muskrats from blocking the hole. This has worked well at several of the
other ponds on the mine site. The work was planned for the day of 2 August 2007.
- The Section 16 Pond (NPDES 009) contained a small pool of water below the bottom
of the riser pipe. The pond embankment was well vegetated and appeared to be
stable at the time of the inspection. The emergency is a riprapped, open channel.
The spillway 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.