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June 10, 2014 C- 1981 - 019 / Colowyo Coal Mine RDZ <br />Other issues and comments regarding the ponds: <br />• The primary spillway for Prospect Pond needs to be repaired — it has a small leak. Past repairs have been <br />only temporarily successful. <br />• Some embankments are partially bare on top, including Streeter. <br />At the inlet of EP there is erosion that should be repaired if it gets significantly worse. <br />Four culverts were inspected (K, L, M, and the 10 -foot culvert for Taylor Creek near the "Y" in the haul road), and <br />no problems were seen. Some sediment removal is needed for K and M, but this is not urgent. <br />GENERAL MINE PLAN COMPLIANCE: <br />The Colowyo Coal Mine was generally found to be in compliance with the mine plan. No unauthorized <br />activities were seen along Wilson Creek (CR51 was driven for several miles) or in other areas of the site. <br />ROADS — Rule 4.03 <br />Construction 4.03.1(3)/4.03.2(3) <br />Drainage 4.03.1(4)/4.03.2(4) <br />Surfacing and Maintenance4. 03. 1(5) and (6)/4.03.2(5) and (6) <br />Reclamation 4.03.1(7)/4.03.2(7): <br />Haul roads were in good shape. The road along Taylor Creek was passable, at least to the East Taylor <br />Pond. The inspection did not proceed above that point, but haul trucks were traveling all the way up the road to <br />the West Taylor Pond. <br />The 114 shovel and the 115 excavator (as well as other smaller equipment) are working on the new haul road. <br />The 103 dragline is down for maintenance. <br />The road beside Gossard Pond has been graded since the last inspection when it was partially eroded. <br />RECLAMATION SUCCESS - Rule 4.15, Rule'): <br />Weeds were observed at many parts of the mine site: <br />• Houndstongue near Prospect Pond. <br />• Houndstongue and Canada thistle near Gulch A Pond. <br />• Cheat grass near Stoker Siding Pond. <br />• Cheat grass near Rail Loop Pond. <br />• Thistle near Work Area Pond. <br />• Some cheat grass in East Pit reclamation. <br />• Mullen, Houndstongue and Canada thistle near the East Pit ditch <br />• Houndstongue and thistle near East Taylor Pond. <br />Per Kurtis Blunt, weed spraying team has been working in the Wilson Creek area. <br />Number of Partial Inspection this Fiscal Year: 12 <br />Number of Complete Inspections this Fiscal Year: 4 <br />Page 4 of 15 <br />