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August 8, 2012 C- 1981 - 019 /Colowyo Coal Mine RDZ <br />Inspection Topic Summary <br />NOTE: Y= Inspected N =Not Inspected R =Comments Noted V= Violation Issued NA =Not Applicable <br />N - Air Resource Protection N -Roads <br />N - Availability of Records N - Reclamation Success <br />R - Backfill & Grading N - Revegetation <br />N - Excess Spoil and Dev. Waste NA - Subsidence <br />N - Explosives N - Slides and Other Damage <br />R - Fish & Wildlife N - Support Facilities On -site <br />R - Hydrologic Balance N -Signs and Markers <br />Y - Gen. Compliance With Mine Plan NA - Support Facilities Not On -site <br />N - Other NA - Special Categories Of Mining <br />NA - Processing Waste N - Topsoil <br />COMMENTS <br />Rob Zuber and Jason Musick of DRMS conducted the partial inspection for the SL -06 bond release. Other <br />participants included Tony Tennyson and Kurt Blunt of Colowyo, Christy Hulsman of OSM, and Jennifer Maiolo <br />of BLM (morning only). The ground was dry. The weather was hot; no precipitation was experienced. <br />BACKFILL and GRADING — Rule 4.14: <br />To check the as -built reclamation in SL -06 areas, several points were checked with GPS technology (Trimble Pro <br />XRT). The maps included in the inspection report shoe the locations of the data points, which fall into four <br />categories: <br />• Data points on cross sections from the SL -06 application (see Exhibits in application). <br />• Data points along drainages. <br />• Data points in smaller areas where there are no cross sections or drainages (e.g., EP055, WP012 /013). <br />• Data points at small ponds (a.k.a. stock tanks) in the East Pit. <br />The tables in the report show the elevations of the data. Compared to elevations in the exhibits in the application, <br />the elevations are consistently off approximately 50 feet. This is possibly due to a collection or differential <br />correction error. It could also reflect the fact that the final grading does not match approved topography. This will <br />be further investigated during the adequacy review for the SL -06 application and discussed in the findings. <br />Possibly a follow -up inspection will be performed to address this issue. <br />An area of hummocks was observed in EPO46. They are well vegetated and appear stable. The area is <br />approximately half an acre (a blue polygon around this area is included on the map for the East Pit and was <br />measured with GPS to be 0.54 acre). <br />FISH and WILDLIFE — Rule 4.18: <br />In EPO46 area several sage grouse were seen. <br />Number of Partial Inspection this Fiscal Year: 2 <br />Number of Complete Inspections this Fiscal Year: 0 <br />Page 2 of 14 <br />