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June 14,2022 C-1980-007/West Elk Mine LDS <br /> Inspection Topic Summary <br /> NOTE: Y Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable <br /> R -Air Resource Protection R -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 /> R -Gen. Compliance With Mine Plan N - Support Facilities Not On-site <br /> N -Other N - Special Categories Of Mining <br /> R -Processing Waste N -Topsoil <br /> CONVOENTS <br /> This was a partial inspection by Leigh Simmons of the Division of Reclamation,Mining and Safety <br /> (Division). Ed Ogrodny of Mountain Coal Company(MCC)accompanied the inspection. The weather was clear, <br /> hot and windy. The mine was active. <br /> AIR RESOURCE PROTECTION—Rule 4.17: <br /> MCC had taken steps to minimize dust emissions: the haul road to the RPEE had been treated with <br /> magnesium chloride which had left a firm consolidated surface,despite the heavy haul truck traffic; and <br /> contractors working on MVB pads and roads were treating roads in the area where they were operating with a <br /> water truck. <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 /> MCC had identified a low spot in the concrete lined ditch D5E-65 before it enters culvert C5E-53,which <br /> was attributed to subsidence.MCC planned to clean the ditch and use shotcrete to raise the sunken section.No <br /> changes in the design were anticipated. <br /> GENERAL MINE PLAN COMPLIANCE: <br /> Longwall mining was in progress in panel LWE14,at around cross cut 20 on the head gate. <br /> Development of the SS3 panel had been completed and mining was in progress in the SS4 headgate, <br /> between cross cuts 5 and 6. <br /> PROCESSING WASTE/COAL MINE WASTE PILES—Rule 4.10 and 4.11 <br /> Drainage Control; Surface Stabilization; Placement: <br /> Contractors with Wells Excavating were working to transport processing waste from the temporary <br /> stockpile on the RPE to the RPEE. Three of their four haul trucks were operating,each carrying a load of <br /> Number of Partial Inspection this Fiscal Year: 9 <br /> Number of Complete Inspections this Fiscal Year: 4 <br /> Page 2 of 15 <br />