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1N3PECTION REPORT Site: National King Coal Mine, iiesperus, Colorado Inspected ay: Don R. May, P.E., Project Engineer Inspection Date: Quarterly Inspection, August 10, 2003 Pon :The east and west sedimentation ponds and their embankments and outlets appear in good condition. The west pond shown in photograph 1 is in need of routine deaning. The outlet works are dean and operable. The sediment elevation gaga reads about 2.5 ft. Orainaae Ditches: The east side and west side drainage channels appear in good general condition. The coal storage pile, in the yard, is much larger than at any time in the past 10 years or more. The pile has encroached onto the face of the waste pile. Care should be taken to assure that this pile does not spit{ into drainage ditches, especially the dean water ditch on the east side. Photo 2 shows the west side rode lined drainage ditch near the top. The large storage pile is clearly seen in this photo. The ditch on the east side of the top of the waste pile is in good shape as seen in photo 3. The lower yard is shown in photos 4 and is in good shape. The upper yard is largely covered by the storage pile. All drainage grates, pipes and ditches were clear at the time of this inspection. AI{ other ditches and drainage structures were inspected and appear in good operating condition. There are no apparent drainage problems on the site. All drainage features have been constructed and are operating as stated in the drainage plan submitted to the Division of Minerals and Geology. Coal Waste Pile: There are no visible signs of structural instability on the waste pile. Because the storage pile has intruded onto the lower half of the front face of the waste pile spedal care should be used when this coal is removed. The first ooncem is that the compacted fill that forms this face is not significantly disturbed. Design slope angle and compaction requirements must be maintained on this face. Secondly, it is likely that the established vegetation on the covered portion of the face will die or be scraped off during this period. This area should be revegetated in accordance with the approved mine plan. The top of the waste pile is in good condition. A portion of this area can also be seen in photo 3. It is recommended that the upstream end of the water pile underdrein be located and marked. As the pile grows this task will become more diffrculty. Except for the items mentioned above the fill on the waste pile has been constructed as specified in the design approved by the Division of Minerals and Geology.