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March 14,2011 C-1981-019/Colowyo Coal Mine JHB <br /> Inspection Topic Summary <br /> NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable <br /> R -Air Resource Protection R -Roads <br /> R -Availability of Records Y -Reclamation Success <br /> R -Backfill&Grading R -Revegetation <br /> Y -Excess Spoil and Dev. Waste NA - Subsidence <br /> R -Explosives Y - Slides and Other Damage <br /> R -Fish& Wildlife R - Support Facilities On-site <br /> R -Hydrologic Balance Y - Signs and Markers <br /> Y -Gen. Compliance With Mine Plan NA - Support Facilities Not On-site <br /> R -Other NA - Special Categories Of Mining <br /> NA -Processing Waste Y -Topsoil <br /> COMMENTS <br /> This was a complete inspection conducted by Janet Binns of DRMS. The weather at the beginning of the <br /> inspection was mild and sunny. The snowpack is quickly melting off and much of the snowpack in the lower <br /> elevation of the mine is patchy,with vegetation showing through.Areas are muddy and thawing. Chip Brown <br /> accompanied the inspector in the field on the second day of the inspection. The mine is an active surface mine <br /> with two active mining areas; South Taylor Pit and West Pit. The East pit is being reclaimed. Activity in the east <br /> pit is minimal during the winter months. <br /> AIR RESOURCE PROTECTION—Rule 4.17: <br /> The haulroads through out the mine were not dusty. A water truck was being filled at the work area pond, <br /> but watering of the roadways was not observed, nor was it needed during the inspection. No blowing of stockpiled <br /> coal at the load out was apparent during the inspection. <br /> AVAILABILITY OF RECORDS—Rule 5.02.4(1): <br /> Records checklist accompanies this report. <br /> BACKFILL and GRADING—Rule 4.14 <br /> Contemporaneous Reclamation 4.14.1; Approximate Original Contour 4.14.2;Highwall Elimination <br /> 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 <br /> Gullies 4.14.6: <br /> The 102 Dragline was actively regrading 2011 spoil handling area in the West pit. Colowyo is progressing in the <br /> 2011 regrade area of the west pit. This area is still being graded so slopes were not verified against approved PMT <br /> contours at this time. <br /> Number of Partial Inspection this Fiscal Year: 7 <br /> Number of Complete Inspections this Fiscal Year: 3 <br /> Page 2 of 7 <br />