_INSPECTION - C1981019 ‎(6)‎

• Permit No: C1981019
• IBM Index Class Name: Inspection
• Doc Name: Inspection Report
• From: DRMS
• To: Tony Tennyson
• Inspection Date: 12/10/2013
• Email Name: RDZ
• Email Name: DIH
• Media Type: D
• Archive: No

December 10, 2013 C-1981-019/Colowyo Coal Mine RDZ
Inspection Topic Summary
NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable
Y -Air Resource Protection R -Roads
Y -Availability of Records Y -Reclamation Success
R -Backfill &Grading Y -Revegetation
R -Excess Spoil and Dev.Waste NA - Subsidence
Y -Explosives Y - Slides and Other Damage
R -Fish &Wildlife R - Support Facilities On-site
R -Hydrologic Balance Y - Signs and Markers
R -Gen. Compliance With Mine Plan NA - Support Facilities Not On-site
N -Other NA - Special Categories Of Mining
NA -Processing Waste R -Topsoil
COMMENTS
A complete inspection was conducted by Rob Zuber of DRMS from December 10, 2013 to December 12, 2013.
The Colowyo employees who participated in the field inspection were Kurtis Blunt and Elliott Russell. The
weather was clear on all days. The ground was covered with snow over most of the mine site,with some drifts of
approximately three feet. The temperatures were too cold for snow melt.
Mining activities in the South Taylor Pit included:
• The highwall mining operation is complete along the south wall of the pit.
• The contractor(ICG ADDCAR Systems, LLC)has moved their equipment and has begun the first
entrance along the east wall. Per conversations with ADDCAR staff,they have encountered steep slopes
(approximately 14 degrees);to date they have progressed to approximately 650 feet into the wall.
• A loader/truck operation was removing F 1 coal.
• Near the southwest corner of the pit, a rig was in use for exploration purposes.
Regarding the highwall mining, Lee Sampson (Colowyo engineer) indicated in the office that the three entries into
the south wall did not exceed 1,200 feet into the wall.
BACKFILL and GRADING—Rule 4.14
Contemporaneous Reclamation 4.14.1; Approximate Original Contour 4.14.2;Highwall Elimination 4.14.1(2)(f);
Steep Slopes 4.14.2, 4.27;Handling of Acid and Toxic Materials 4.14.3; Stabilization of Rills and Gullies 4.14.6:
In the West Pit,the 103 dragline was moving E seam overburden.
EXCESS SPOIL and DEVELOPMENT WASTE—Rule 4.09
Placement, Drainage Control; Surface Stabilization:
The West Taylor Fill and the West Pit Fill were viewed from the ponds below them, and no erosion or
other problems were identified. At the top of the West Taylor Fill,trucks were continuing to dump material.
Number of Partial Inspection this Fiscal Year: 6
Number of Complete Inspections this Fiscal Year: 2
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