_INSPECTION - C1981019 ‎(20)‎

• Permit No: C1981019
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 12/19/2007
• Media Type: D
• Archive: No

Colowyo C-1981-019
19 December 2007�
Pg 3/6
Hydrologic Balance (cont.): - The Stoker Siding Pond (NPDES 005A) contained water
approximately one-and-a-half feet below the riser pipe and was not discharging at
the time of the inspection. The pond embankment was covered with snow but it
appeared to be well vegetated and stable at the time of the inspection. The
emergency spillway is an open, trapezoidal riprapped channel. The spillway
appeared to be stable and well maintained at the time of the inspection.
- All of the roadside ditches appeared to be stable and in good condition. The
Colowyo Mine continues to received large amounts precipitation 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.
- The East Taylor Pond (NPDES 01 OA) 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
pond embankment was covered with snow but it appeared to be well vegetated
and 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 appeared to be stable and well
maintained at the time of the inspection.
- The Prospect Pond (NPDES 007A) contained a small amount of water, below the
bottom of the discharge pipe, and was not discharging at the time of the inspection.
The pond embankment was covered with snow but it appeared to be well
vegetated and 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 appeared to be stable and well
maintained at the time of the inspection. The operator (Bower Brothers) was cleaning
the pond at the time of the inspection. Although the weather was cold and snowy,
the sediment that was being removed was remarkably dry. The inlet of the pond was
the portion that was being cleaned at the time of the inspection. It was estimated
that approximately 4,000 yard of material would need to be removed from the pond.
The operator was using a CAT 330 excavator with a long boom and two highway-
legal end dump trucks. The pond cleaning operation appeared to be going well at
the time of the inspection.
- The Gulch A Pond (NPDES 004A) was inaccessible at the time of the inspection due
to snow.
- The Section 16 Pond (NPDES 009) was inaccessible at the time of the inspection due
to snow (and will probably remain so until April or May).
-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
covered with snow but appeared to be well vegetated and stable at the time of the
inspection. No erosional problems noted on the embankment at the time of the
inspection. The discharge from the Streeter Pond enters Goodspring Creek then flows
through a large culvert under Colorado Highway 13.