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March 18, 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 />Y - Backfill & Grading <br />N - Excess Spoil and Dev. Waste <br />N - Explosives <br />N - Fish & Wildlife <br />R - Hydrologic Balance <br />Y - Gen. Compliance With Mine Plan <br />N - Other <br />R - Processing Waste <br />N - Roads <br />N - Reclamation Success <br />N - Revegetation <br />N - Subsidence <br />N - Slides and Other Damage <br />N - Support Facilities On -site <br />Y - Signs and Markers <br />N - Support Facilities Not On -site <br />N - Special Categories Of Mining <br />N - Topsoil <br />COMMENTS <br />This inspection was a Coal Partial inspection conducted by Lucas West of the Colorado Division of Reclamation, <br />Mining and Safety's Active Mines Program. Wade Wymore of GCC accompanied the inspection and represented <br />the Operator. The site was active at the time of the inspection, mining, processing and hauling activies were all <br />taking place at the King II facility. The weather was clear and dry during the inspection and the appropriate <br />COVID-19 protocols were followed. The overall footprint of the site was in good condition and no maintenance <br />items were identified during the inspection. <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 one facility, the lower reaches of both the East and West Clear Water Ditches were observed. The <br />ditches appeared stable and to be functioning as designed at the time of the inspection. No standing water was <br />observed in the ditches and evidence of recent flows was observed. The Clear Water Ditches can be seen in <br />Photos One and Two. <br />Small amounts of standing water was obeserved on the lower refuse pile in response to recent snowmelt. The <br />water on the refuse pile is normal and not adversely impacting the pile. The underdrainage systems both on and <br />below the surface of the refuse pile appeared to be functioning as designed. <br />The West sediment pond, seen in Photo Three, was observed and contained a small amount of stainding water. <br />The sediment load appears to be within the design specifications for the pond as is suggested by the witness <br />indicator located near the center of the pond. The East Sediment Pond, seen in Photo Four contained no standing <br />water and is in good condition. The berms surrounding both ponds are well vegetated and appeared to be stable at <br />the time of the inspection. No state listed noxious weeds were noted in the areas. <br />Number of Partial Inspection this Fiscal Year: 6 <br />Number of Complete Inspections this Fiscal Year: 3 <br />Page 2 of 7 <br />