_INSPECTION - C1982056 ‎(25)‎

• Permit No: C1982056
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 10/14/2008
• Email Name: JHB
• Media Type: D
• Archive: No

III. COMMENTS - COMPLIANCE
Below are comments on the inspection. The comments include discussion of observations made during
the inspection. Comments also describe any enforcement actions taken during the inspection and the
facts or evidence supporting the enforcement action.
This was a partial inspection conducted by Janet Binns of Colorado Division of Reclamation, Mining
and Safety. Mr. Brian Watterson of Twentymile Coal Company accompanied the inspection. The mine
is an active underground mine. The weather was cool and clear, and the mine site was dry, with
occasional puddles due to weekend precipitation.
Roads: Roads throughout the mine were dry and well graded. Ditches through out the facilities area
have been regraded and haulroad SAE's cleaned of sediment. Several ditches, ditch E-2, and ditch west
of Zero-entry shaft, need additional clean out.
The hydraulic oil spill on the 6MN pad near the pump house is mostly cleaned up. The berm downslope
of the hydraulic oil spill remains intact. TCC continues to clean the leak from the compressor building.
TCC has received approval to dispose of contaminated soil material at the landfill outside of Milner.
(The Division has not seen documentation on this approval.) TCC is in the process of dismantling this
temporary compressor house, decommissioning the leaking compressor and replacing the equipment.
Hydraulic oil does not reach the 6MN pond, though TCC continues to place absorbent napkins and
booms in the inlet of the 6MN pond. 6MN pond is almost dry.
Support Facilities: Stoker loading area expansion has not yet been implemented. Due to water level
build up in the underground workings in late August, TCC has constructed a temporary"underflow
storage"area in the previously approved location of low quality coal storage pile. This has allowed TCC
to place coal fine "slurry" in this location while pumping water levels in the gob to acceptable levels.
Most of the water in this Underflow storage area has been siphoned off and slurry fines remain. TCC
will continue to allow this material to dry and then will place this material in an appropriate location.
Grading of the south side of the "Big"wash plant is still needed. Ditch D-3-B still needs additional
grading and shaping to keep flow from ponding on the south side of the Big wash plant. TCC has
installed a culvert at the east side of ditch D-3-B.
Hydrologic Balance:
TCC received a temporary General discharge permit from the Colorado Department of Public Health&
Environment(CPDH&E) to allow mine water discharge from 10 RT borehole, directly to Foidel Creek
without treatment. This permit is effective 8/30/2008 to 9/l/2009. TCC is currently pumping from
1 ORT to Foidel Creek via a 12"HDP. The discharge point at Foidel Creek is approximately where
Foidel Creek flows under Routt County road No. 33. The water flows through a culvert(20"to 24")
under the Rail Road. Then the discharge flows to a grassed slough where visually iron is dropped out.
Fish Creek Vent Shaft(FCVS) is being pumped overland to Pit 1. Pit 1 elevation has approximately 7 to
8 feet freeboard prior to flowing to Pond D. Pond D was discharging at a trickle during this inspection.
TCC continues to manage mine water via pumping from TORT and FCVS, and either directly to Foidel
Creek or to Pit 1. TCC reported that freeboard available underground was 4.68 feet in the SWD
workings and 8.02 feet in the EMD.
3 of 5 WHITE-File YELLOW-Operator PINK-Specialist