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March 17, 2022 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 N -Roads <br /> N -Availability of Records N -Reclamation Success <br /> N -Backfill&Grading N -Revegetation <br /> N -Excess Spoil and Dev. Waste N - Subsidence <br /> N -Explosives N - Slides and Other Damage <br /> N -Fish&Wildlife R - Support Facilities On-site <br /> R -Hydrologic Balance N - Signs and Markers <br /> N -Gen. Compliance With Mine Plan N - Support Facilities Not On-site <br /> N -Other N - Special Categories Of Mining <br /> N -Processing Waste 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 were active and trucks were bineg loaded at the time of the inspection. No activities were being <br /> conducted at the King I area. The weather was clear and dry,Ten Photos accompany this report to illustrate the <br /> 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: During this inspection the lower reaches of both the East and West Clear Water Ditch <br /> (CWD),the East and West Sediment Ponds and the internal drainage of the lower refuse pile were observed. Both <br /> the East and West CWD were clear and free from obstructions to convey water around the affected areas. An <br /> example of the East CWD can be seen in Photo One. The ditch appears to be functioning as designed and no <br /> evidence of erosion or cutting was noted in either ditch. The internal drainage of the lower refuse pile appears to <br /> be functioning as designed,delivering water from snowmelt downgradient to the appropriate sediment ponds. A <br /> small erosional feature has developed where the access road interfaces with the lower refuse pile. This can be seen <br /> in Photo Two,however is not noted as a maintenance item at this time. The feature will be remedied when the <br /> lower refuse pile is regraded and compacted in the coming weeks. The East Sediment Pond was observed with <br /> standing water in response to snowmelt during the warm days. The pond level is well below the maximum design <br /> level and was not discharging. The pond can be seen in Photo Three, showing the banks are well vegetated and <br /> stable. Similarly,the West Sediment Pond also had standing water. The West pond is also well below its <br /> maximum design level and appears to be functioning as designed. The cleanout efforts that were conducted in the <br /> fall have not been completed due to saturated conditions in the downgradient end of the pond,on site discussions <br /> indicate the cleanout will be completed when conditions allow. <br /> Barn Area: Sediment control structures installed at the Barn Area are installed to control runoff and protect the <br /> Number of Partial Inspection this Fiscal Year: 6 <br /> Number of Complete Inspections this Fiscal Year: 3 <br /> Page 2 of 8 <br />