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August 25, 2021 C-1981-035/King Coal Mine LJW <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 />N - Backfill & Grading <br />N - Excess Spoil and Dev. Waste <br />N - Explosives <br />N - Fish & Wildlife <br />R - Hydrologic Balance <br />N - Gen. Compliance With Mine Plan <br />N - Other <br />N - Processing Waste <br />N - Roads <br />N - Reclamation Success <br />R - Revegetation <br />N - Subsidence <br />N - Slides and Other Damage <br />N - Support Facilities On -site <br />N - Signs and Markers <br />N - Support Facilities Not On -site <br />N - Special Categories Of Mining <br />N - Topsoil <br />COMMENTS <br />This was a partial inspection conducted by Lucas West of the Colorado Division of Reclamation, Mining and <br />Safety as part of the normal monitoring program for permitted sites. Wade Wymore accompanied the inspection <br />and represented the Operator. Normal activies were tkaing place at the mine during the inspection. at the King II <br />area, the stackers and air jig were active and trucks were bineg loaded at the time of the inspection. No activities <br />were being conducted at the King I area. The weather was clear and dry, Nine Photos accompany this report to <br />illustrate the current site conditions. <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 />King I Facility <br />At the King I facility the North Clear Water Ditch was observed. The ditch contained evidence of recent flows but <br />showed no signs of erosion or instability. Photos One and Two show examples of the ditch. All downgradient <br />water conveyances around the lower refuse pile and facilites area were observed and appeared to be functioning as <br />designed. The West sediment pond was observed, and had minimal standing water in response to recent <br />precipitation events. The East sediment pond contained no standing water but did exhibit evidence of water being <br />present recently. Both ponds are in good condition, the banks appeared to be stable and are well vegetated. The <br />ditches can be seen in Photos Three and Four. <br />Across the upper refuse pile, a series of water bars have been installed to divert surface flow of storm water to the <br />conveyance ditch on the south side of the upper refuse pile. The water bars are effective and evidence of flow was <br />observed. However the preferential flow path have been establish and minor rills have formed on the refuse pile. <br />These erosional features are being considered a maintenance item to be addressed by the Operator. An example of <br />the erosional features can be seen in Photo Five. Similarly, along the access road leading from the lower refuse <br />pile to the upper refuse pile minor erosional features were observed. This is also considered a maintenance item to <br />be addressed by the Operator. An example of the erosional features can be seen in Photo Six. <br />Number of Partial Inspection this Fiscal Year: 1 <br />Number of Complete Inspections this Fiscal Year: 1 <br />Page 2 of 8 <br />