_INSPECTION - C1981019 ‎(53)‎

• Permit No: C1981019
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• From: DRMS
• To: Colowyo Coal Company
• Inspection Date: 7/26/2011
• Email Name: JHB
• Media Type: D
• Archive: No

July 26,2011 C-1981-019/Colowyo Coal Mine JHB
extent of the East pit highwall on the morning of 7/27 pushing the highwall down. Slope measurements were
taken with a hand held Suunto inclinometer on this portion of the slope; lower portion of East Pit 2011 Spoil
parcel, north of the east pit highwall and south of the drainage. The slope measured 11%. Based on approved map
29,this is in agreement with the approved grading contours.
CCC was already placing topsoil in this area. The Division is in agreement that this portion of the slope is in
compliance with the grading design and ready to accept topsoil placement. This area will receive variable topsoil
thickness.
CCC has placed riprap in the permanent drainage in this stretch. CCC uses a rock hammer to break up rock
brought in to the reclamation area to size it in accordance with the design and place the sized rock appropriately.
EXPLOSIVES—Rule 4.08
Distance Prohibitions 4.08.4; Warnings 4.08.4; Control of Adverse Effects 4.08.4:
CCC blasted the eastern extent of the east pit highwall on 7/26.
FISH and WILDLIFE—Rule 4.18:
Wildlife was observed throughout the reclaimed area. A fairly large herd of Pronghorn were observed hanging out
on 2010 reclamation by the 2010 stock pond in the north drainage of the East pit. A herd of 4 bucks and 2 does
were flushed up in the SL5 area of the East Pit reclamation. CCC has opened the fencing in some of the shrub
exclosures in the SL5 area.
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:
Sediment ponds along highway 13 are functioning well. Section 28 pond was dry. Prospect pond was holding a
pool of water just at the weep holes. Discharge from the Prospect pond was a trickle. Gulch A and Streeter ponds
looked fine with no concerns.
East Taylor pond has not yet been cleaned of sediment. CCC has a long reach excavator on site at the north end of
the East Taylor access road. CCC stated that the excavator will be cleaning the pond within the next week, even
though the pond has not dried out. CCC has had TSS exceedances on the discharge form this pond. This pond
needs immediate sediment clean out.
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):
Haul roads were in good condition during the inspection. Water trucks were watering the roads during the
afternoon of 7/27.'Access roads were traversable and maintained.
Number of Partial Inspection this Fiscal Year: 1
Number of Complete Inspections this Fiscal Year: 0
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