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July 23, 2014 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 />R - Air Resource Protection <br />N - Availability of Records <br />R - Backfill & Grading <br />R - Excess Spoil and Dev. Waste <br />R - Explosives <br />N - Fish & Wildlife <br />R - Hydrologic Balance <br />R - Gen. Compliance With Mine Plan <br />N - Other <br />NA - Processing Waste <br />R -Roads <br />R - Reclamation Success <br />N - Revegetation <br />NA - Subsidence <br />R - Slides and Other Damage <br />R - Support Facilities On -site <br />N -Signs and Markers <br />NA - Support Facilities Not On -site <br />R - Special Categories Of Mining <br />R - Topsoil <br />COMMENTS <br />A partial inspection was conducted by Rob Zuber of DRMS on July 23, 2014 and July 24, 2014. The Colowyo <br />employees who participated in the field inspection were Kurtis Blunt, Lee Sampson, and Marty Stearns. Tony <br />Tennyson and Steve Weist participated in office discussions. The weather was mostly clear and warm. The <br />ground was dry. <br />The South Taylor Pit was inspected from above. The only activity was drilling and blasting. The 103 dragline and <br />115 excavator were in the pit but idle (probably for Thursday maintenance activities). <br />See the Special Categories section for information on highwall mining operations. <br />The 101 dragline has been dismantled onsite, and pieces have been shipped to another location. The project is <br />nearly complete. <br />AIR RESOURCE PROTECTION — Rule 4.17: <br />Water trucks were operating on many portions of the site, including haul roads and the Taylor Creek <br />Road. <br />BACKFILL and GRADING — Rule 4.14 <br />Contemporaneous Reclamation 4.14.1; Approximate Original Contour 4.14.2; Highwall Elimination 4.14.1(2)(f); <br />Steep Slopes 4.14.2, 4.27; Handling of Acid and Toxic Materials 4.143; Stabilization of Rills and Gullies 4.14.6: <br />In the West Pit, spoil was being loaded into trucks with the 114 shovel and moved from the northwest <br />corner of the spoils (near the runaway truck ramp) to the east end of the pit. <br />The east side of the South Taylor Pit is being partially filled with the 103 dragline. <br />Number of Partial Inspection this Fiscal Year: 1 <br />Number of Complete Inspections this Fiscal Year: 0 <br />Page 2 of 12 <br />