_INSPECTION - C1981019 ‎(36)‎

• Permit No: C1981019
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 4/12/2010
• Email Name: JRS
• Email Name: SB1
• Media Type: D
• Archive: No

III. COMMENTS - COMPLIANCE
Colowyo C-1981-019
12 Apr 10
Pg 114 ei5�
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 of the Colowyo Mine conducted by Jim Stark of CDRMS.
The inspection was conducted on 12 and 13 April 2010. Ryan Pawlowski of CCC
accompanied me on the inspection. The weather was cool and it was windy and
raining/snowing during portions of the inspection. Most of the snow has melted at
the Colowyo Mine but and the ground was wet and very muddy at the time of the
inspection. The mine was active mining and hauling coal to the loadout.
Roads: - The main haul road/access road was dry at the time of the inspection. The
road is a paved road and is well maintained and in good condition.
- According to Tay Tonozzi, Colowyo has completed the remaining work on the new
South Taylor haul road (approved through Technical Revision 76). Now that the road
is complete, Colowyo must provide the Division with a construction report and the
road must be certified by a registered, professional engineer, pursuant to Rule
4.03.1(1)(d)(1). This construction report and haul road certification must be submitted
in the form of a Technical Revision. The haul road is partially an in-pit road (the
portion that is within the limits of the West Pit) and partially a haul road that must be
designed and certified pursuant to Rule 4.03.1 . The road was well maintained and
appeared to be stable at the time of the inspection. Colowyo was actively watering
the road at the time of the inspection to help control fugitive dust. No erosional
problems were noted on the road at the time of the inspection.
- With the construction of the South Taylor Haul Road the majority of Haul Road A and
all of Haul Road B have been removed from use for the mining operations. Portions
of these roads remain open for access to the north side of the final cut of the Section
16 Pit and the East Pit. Colowyo was working on clearing and stabilizing this road at
the time of the inspection. This portion of the road will be used to walk the 103
dragline to the east side of the West Pit.
- The Sturgeon road was a bit wet but in overall good condition and stable. The
gravel surface remains in place and the Missouri crossings held up well through the
winter and early snow melt and appear to be working as designed. The roadside
ditches were all clean at the time of the inspection.
- The access road in Taylor Draw was wet and muddy in spots but it was in overall
good condition. There was some minor rutting on the road but this is not a problem
at this time.
- The in-pit road to the overburden dumps to the Taylor Fills and the Section 16 Pit and
the roads to the South Taylor Pit area were all dry and being actively watered to
control fugitive dust. The roads were all well maintained and stable.