_INSPECTION - C1982056 ‎(43)‎

• Permit No: C1982056
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• From: DRMS
• To: Twentymile Coal Company
• Inspection Date: 4/19/2011
• Email Name: JDM
• Media Type: D
• Archive: No

April 19, 2011 C-1982-056/Foidel Creek Mine JDM
Inspection Topic Summary
NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable
N -Air Resource Protection R -Roads
N -Availability of Records N -Reclamation Success
N -Backfill &Grading N -Revegetation
NA -Excess Spoil and Dev. Waste N -Subsidence
N -Explosives N -Slides and Other Damage
N -Fish &Wildlife N -Support Facilities On-site
R -Hydrologic Balance Y -Signs and Markers
Y -Gen. Compliance With Mine Plan N -Support Facilities Not On-site
R -Other N -Special Categories Of Mining
N -Processing Waste N -Topsoil
COMMENTS
HYDROLOGIC BALANCE -Rule 4.05
Drainage Control 4.05.1,4.05.2,4.05.3; Siltation Structures 4.05.5,4.05.6; Discharge Structures 4.05.7,4.05.10;
Diversions 4.05.4;Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13;
Drainage—Acid and Toxic Materials 4.05.8; Impoundments 4.05.6,4.05.9; Stream Buffer Zones 4.05.18:
Ponds B, C,D,E,F, G,T, 6NM, 6NM sediment pond, 18LT ponds, and Fish Creek Tipple Pond were observed
during the inspection. All pond embankments were partially snow-covered and wet with no problems noted.
With regard to underground water storage, as of 4/8/2011 the Fish Creek Vent Shaft location was measured at
42.04 ft of freeboard and the TORT location at 76.29 ft.
All sediment ponds were discharging at the time of the inspection, with the exception of 6MN. Pond C displayed
a small trickle discharge out of the primary outlet culvert. However, it was unclear if the discharge was entering
Foidel Creek or pooling before it reached the creek. All emergency spillways were stable with no evidence of use.
No problems were observed with the discharges inspected, with the exception of the following:
- A small amount of discharge from Pond G was short circuiting around the outside of the v-notch weir for flow
measurements. This flow was beginning to cause some slight down-cutting around the edge of the weir. Brian
Watterson stated that TCC would be conducting a temporary repair with a permanent solution to be implemented
when conditions permit.
OTHER(SPECIFY):
This was a partial coal inspection conducted by Jason Musick of CDRMS. Brian Watterson of TCC accompanied
the inspection. It was snowing and the ground was very wet at the time of the inspection. The longwall miner is
currently not operational due to underground conditions. TCC is currently involved in the application process to
remediate the underground conditions and begin longwall operations. No work has been initiated at the time of
Number of Partial Inspection this Fiscal Year: 7
Number of Complete Inspections this Fiscal Year: 3
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