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December 21, 2020 C-1980-007/West Elk Mine LDS <br />SLIDES and DAMAGE - Rule 4.12: <br />Mr Munz reported that the slump on the Materials Storage Bench (MSB) had been largely stable <br />throughout 2020, but was still being monitored. MCC had not yet finalized a plan to permanently stabilize the <br />area. <br />SUPPORT FACILITIES - Rule 4.04: <br />A pump was running on the methane supply borehole at the Vent Shaft 93 pad. The gas drawn from the <br />borehole was being pumped into the buried pipe to the Sylvester Gulch facilities area, where it was fueling heaters <br />to warm the air being drawn into the mine workings. The temperature at the time of the inspection was relatively <br />mild (around 40F), and just a few of the heaters were running. <br />DOCUMENTS RECEIVED <br />N/A <br />OTHER (SPECIFY) <br />N/A <br />Number of Partial Inspection this Fiscal Year: 6 <br />Number of Complete Inspections this Fiscal Year: 2 <br />Page 3 of 11 <br />