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<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 <br />N - Availability of Records <br />R - Backfill & Grading <br />N - Excess Spoil and Dev. Waste <br />Y - Explosives <br />R - Fish & Wildlife <br />R - Hydrologic Balance <br />N - Gen. Compliance With Mine Plan <br />N - Other <br />N - Processing Waste <br /> <br />R - Roads <br />R - Reclamation Success <br />Y - Revegetation <br />N - Subsidence <br />N - Slides and Other Damage <br />Y - Support Facilities On-site <br />Y - Signs and Markers <br />N - Support Facilities Not On-site <br />N - Special Categories Of Mining <br />R - Topsoil <br /> <br /> <br />COMMENTS <br /> <br />This was a partial inspection of the Colowyo Mine conducted by Zach Trujillo of Colorado Division of <br />Reclamation, Mining and Safety (DRMS) on February 8, 2018. Tony Tennyson representing Tri-State Generation <br />and Transmission Association (Tri-State), Kurtis Blunt and Angela Aalbers representing Colowyo Coal Company <br />(Colowyo) accompained the inspection. The weather for inspection was clear and ground conditions partially <br />snow covered and muddy. Temperature during the inspection was around fifty degrees fahrenheit. Due to muddy <br />conditions, access through the site was limited. <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 4.14.3; Stabilization of Rills and Gullies 4.14.6: <br />Active backfilling is occurring within the South Taylor Pit. Overburden is being trucked from the active mining <br />area on the western end of the pit over to the eastern end. The dragline was operating and moving overburdenand <br />placing it at the bottom of the pit. <br /> <br />Due to the dry winter months, Colowyo had begun grading part of the 2018 reclamation parcel of the West Pit <br />prior to the inspection. <br /> <br />Fill material is being placed along the lower section of the Collom Haul Road where it meets the loadout.