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September 28,2022 C-1981-019/Colowyo Coal Mine ZTT <br /> ,�- - <br /> Approximate slump outline. <br /> EXCESS SPOIL and DEVELOPMENT WASTE—Rule 4.09 <br /> Placement;Drainage Control; Surface Stabilization: <br /> The West Taylor Fill was inspected from below from the West Taylor Pond. The face of the slope is well <br /> vegetated with no erosion observed. The East and West Fork Taylor Ditch was inspected in association to the <br /> West Taylor Fill. The ditches line both sides of the fill and were stable and well armored. <br /> The Collom Temporary Spoil Pile continues construction as progression of the western portion of the Collom Pit <br /> continues. Overburden was actively being loaded and hauled to the spoil pile during the inspection. The approved <br /> disturbance boundary for the spoil pile was inspected with no issues. The area is well bermed in to contain spoil <br /> and delineate the approved boundary. <br /> EXPLOSIVES—Rule 4.08 <br /> Distance Prohibitions 4.08.4; Warnings 4.08.4; Control of Adverse Effects 4.08.4: <br /> Number of Partial Inspection this Fiscal Year: 2 <br /> Number of Complete Inspections this Fiscal Year: I <br /> Page 3 of 10 <br />