2010-10-28_INSPECTION - C1981028

• Permit No: C1981028
• IBM Index Class Name: INSPECTION
• Doc Date: 10/28/2010
• Doc Name: Inspection Report
• From: DRMS
• To: Coors Energy Company
• Inspection Date: 10/28/2010
• Email Name: RDZ
• Media Type: D
• Archive: No

October 28, 2010 C-1981-028/Keenesburg Strip 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
R - Availability of Records R - Reclamation Success
Y - Backfill & Grading Y - Revegetation
NA - Excess Spoil and Dev. Waste NA - Subsidence
NA - Explosives Y - Slides and Other Damage
Y - Fish & Wildlife Y - Support Facilities On-site
R - Hydrologic Balance Y -Signs and Markers
R - Gen. Compliance With Mine Plan NA - Support Facilities Not On-site
NA -Other NA - Special Categories Of Mining
NA - Processing Waste Y -Topsoil
COMMENTS
AVAILABILITY OF RECORDS - Rule 5.02.4(1):
No records were missing from the files at the Keenesburg Strip Mine office (see attached check list).
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:
No problems were identified with Sediment Pond 2 or the Dugout Pond. B-Pit and the ponds were dry at
the time of the inspection.
GENERAL MINE PLAN COMPLANCE:
In the B-Pit, CEC continues to dispose of ash from the boilers at the Golden plant. Donald MacDonald
indicated that three loads had been deposited on 10/28/2010. Some of this material was observed and, per Mr.
MacDonald, consists of a mixture of fly ash, bottom ash, and stoker ash. CEC will continue to place ash on the
lower lift until they reach the northern extent of the B-Pit. During the inspection, no dumping activities were
observed. No problems were observed with the pit or the ash disposal area.
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 access and haul road to B-Pit are sufficiently graded and ditches were maintained.
RECLAMATION SUCCESS - Rule 4.15, Rule 3:
No gullies or other problems were observed in any of the blocks. Grass and other vegetation were very
dry due to the recent lack of precipitation.
Number of Partial Inspection this Fiscal Year: 2
Number of Complete Inspections this Fiscal Year: 2
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