_INSPECTION - C1981019 ‎(25)‎

• Permit No: C1981019
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 11/10/2008
• Email Name: JRS
• Media Type: D
• Archive: No

Colowyo C-1981-019
10 November 2008 6n�
Pg 4/6
Hydrologic Balance (cont.): - Sump 1 was full at the time of the inspection but was
not discharging. The sump was stable at the time of the inspection.
- Sump 2 contained water approximately 1 foot below the top and was not
discharging at the time of the inspection. The sump was stable at the time of the
inspection. This sump was just cleaned and is cleaned on a regular basis by the road
crew.
- Sump 3 contained water approximately three feet below the top and was not
discharging at the time of the inspection. The sump was stable at the time of the
inspection. This sump was just cleaned and is cleaned on a regular basis by the road
crew.
- Sump 4 contained water approximately three feet below the top of the sump and
was not discharging at the time of the inspection. The sump was stable at the time of
the inspection. This sump was being cleaned at the time of the inspection (and is
cleaned on a regular basis by the road crew).
- Sump 5 contained water to the top of the sump but was not discharging at the time
of the inspection. The sump appeared to be stable at the time of the inspection. This
sump was scheduled to be cleaned after sump 4 was complete. The operator
expressed concern with this sump. What happens is that as the sump fills, it does not
discharge well since the top of the sump is at the same elevation as the surrounding
land almost to Taylor Creek. This causes water to back up across the road (which is
lower at that point to allow it to flow into the sump) and into the ditch along the
Taylor Creek road. This standing water causes a permanent muddy spot in the road.
Colowyo will consider the options for resolving this problem and submit a revision to
the Division as necessary.
Backfilling and Grading: - Colowyo did not perform any backfilling or regrading
activities in the East Pit in 2008. They have performed some maintenance work in the
Prospect drainage, however, as a result of abatement requirements for Notice of
Violation CV-2008-004. The work in the drainage includes filling two large gullies that
formed on the sides of the Prospect ditch (one gulley on each side of the ditch),
repairing the erosion in the portions of the Prospect ditch that are at final grade
(including replacing the riprap as necessary), installing contour ditches to slow the
runoff on in the drainage and route it to the Prospect ditch and ripping the area
between the ditches on contour.
- Colowyo has committed to provide two reclamation schedules for the East Pit
closure. The first plan is a short term plan that will encompass the area around the
Prospect ditch, including the sump area that is part of the ditch which is not yet to
final grade. This short term plan, in the form of a Technical Revision, is due to the
Division no later than 24 December 2008. The second plan is a long term plan that
will provide a comprehensive reclamation schedule for the remaining East Pit,
including the closure of the final pit. This long term plan is due to the Division in the
first quarter of 2009.
- Colowyo completed 42.2 acres of reclamation in the West Pit in 2008. This leaves
Colowyo approximately 430 acres behind on their permit commitment for the
reclamation scheduled for completion by the end of 2007.