_INSPECTION - C1981019 ‎(28)‎

• Permit No: C1981019
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• From: DRMS
• To: Colowyo Coal Company
• Inspection Date: 12/8/2010
• Email Name: JRS
• Email Name: SB1
• Media Type: D
• Archive: No

December 8, 2010 C-1981-019/Colowyo Coal Mine JRS es�
was also well vegetated and stable. The other stock tanks were viewed from afar,as they were more or less
inaccessible due to the weather conditions(snow and mud). The Division of Water Resources will make a
determination regarding the stock tanks and Colowyo will provide the Division with a technical revision to clarify
their status.
-The Prospect Pond(NPDES 007A)contained water to just below the lowest weep hole on the riser pipe and was
not discharging at the time of the inspection. The surface of the pond was frozen. The pond embankment was
covered with a few inches of snow but it appeared to be well vegetated and stable. No erosional problems were
noted on the pond embankment.
GENERAL MINE PLAN COMPLANCE:
-The 101 dragline is sitting inactive on the East Pit highwall.
-The 102 dragline was doing pull-back work in the West Pit.
-The 103 dragline was uncovering E-Seam overburden in the West Pit.
-The 114 shovel and 115 excavator were working in the South Taylor box-cut.
ROADS—Rule 4.03; Construction 4.03.1(3)/4.03.2(3);Drainage 4.03.1(4)/4.03.2(4); Surfacing and
Maintenance4.03.1(5)and(6)/4.03.2(5) and(6); Reclamation 4.03.1(7)/4.03.2(7):
-The mine access and haul road is a paved road. The road was dry and well maintained at the time of the
inspection.
-All of the haul roads in the pits were dry at the time of the inspection. The South Taylor Haul Road was stable
and well maintained.
REVEGETATION—Rule 4.15 Vegetative Cover; Timing:
-Colowyo has completed the seeding of the R3 stockpile and the wedge area of the East Pit. They have also done
some seeding in the 2010 reclamation area of the West Pit. The area that is completed is the area west of the East
Taylor Ditch in what is primarily a sagebrush steppe area. Colowyo is having some trouble with their seeding this
year, given the snow and muddy ground conditions. They are pulling the drill seeder with a dozer to help get
around the muddy conditions. They were trying to schedule the seeding contractor to complete the seeding in the
West Pit and the East Pit.
TOPSOIL—Rule 4.06 Removal 4.06.2; Substitute Materials 4.06.4(4); Storage and Protection 4.06.3;
Redistribution 4.06.4:
-All of the topsoil has been replaced in the 2010 reclamation areas. As documented in the Division's 3 November
2010 inspection report,topsoil depth holes were dug in the R#and West Pit reclamation areas. In the spring or
early summer of 2011 (as conditions permit)the Division will dig some topsoil depth holes in the East Pit and East
Pit wedge area to verify replacement depths.
Number of Partial Inspection this Fiscal Year: 6
Number of Complete Inspections this Fiscal Year: 2
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