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September 24, 2015 C-1981-028/Keenesburg Strip Mine RAR <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 />NA - Excess Spoil and Dev. Waste <br />NA - Explosives <br />Y - Fish & Wildlife <br />R - Hydrologic Balance <br />R - Gen. Compliance With Mine Plan <br />N - Other <br />NA - Processing Waste <br />N - Roads <br />Y - Reclamation Success <br />N - Revegetation <br />NA - Subsidence <br />NA - Slides and Other Damage <br />N - Support Facilities On-site <br />N -Signs and Markers <br />NA - Support Facilities Not On-site <br />NA - Special Categories Of Mining <br />R -Topsoil <br />COMMENTS <br />A partial inspection of the Keenesburg Mine, C-1981-028, operated by Coors Energy Company was conducted on <br />24 September, 2015 by Robin Reilley of the Division of Reclamation, Mining and Safety. The weather was clear <br />and approximately 60F at the time of inspection. Danny Kipp with with CEC was present during the inspection. <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 />They were grading at the B pit to knock down weeds then will fill with 2 layers of ash, 6 feet of cover and 2ft of <br />topsoil. <br />HYDROLOGIC BALANCE - Rule 4.05 <br />Drainage Control 4.05.1, 4.05.2, 4.05.3; Siltation Structures 4.05.5, 4.05.6; Discharge Structures 4.05.7, 4.05.10; <br />Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13; <br />Drainage — Acid and Toxic Materials 4.05.8; Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: <br />Sediment Pond No. 2: was not holding water (photo). Danny will clean out the tall vegetation once it freezes. <br />Dugout Pond: willow and cottonwoods are well established and tall grasses are currently still green. Holding no <br />water. <br />GENERAL MINE PLAN COMPLIANCE: <br />An ash load was delivered the morning of the inspection, from this approximately 52 yds. or 24 tons. Ash <br />deliveries started on Monday and have been receiving 2 loads/day. <br />TOPSOIL — Rule 4.06 <br />Removal 4.06.2; Substitute Materials 4.06.4(4); Storage and Protection 4.06.3; Redistribution 4.06.4: <br />Currently working on areas 32 and 33. Area 32 is ready for seed. Top sand piles Al and B1 are being mined for <br />Number of Partial Inspection this Fiscal Year: 2 <br />Number of Complete Inspections this Fiscal Year: 1 <br />Page 2 of 4 <br />