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June 25, 2024 C-1981-018/Deserado Mine TJ1 <br /> <br /> <br />Number of Partial Inspection this Fiscal Year: 8 <br />Number of Complete Inspections this Fiscal Year: 4 <br /> <br /> Page 4 of 13 <br /> <br />not appear to have grown in size. (Photo 6) The Rail Loadout Storage South Ditch is able to convey water and <br />does not appear obstructed. <br />Pond RP-1 is located at the base of the reclaimed RP-1 Refuse Pile. The pond was dry at the time of the <br />inspection. The embankments of the pond were stable with no indications of erosion observed. There were no <br />obstructions in the outlet - the trash rack over the pond’s outlet was clean. <br />Two ponds are located at the northern base of Refuse Pile RP-2/3/4. The RP -2/3 Pond is located on the pile’s <br />northeast corner. The Pond consists of three cells – none of the cells were holding water at the time of the <br />inspection. Animal burrows were observed in the northwest embankment of the pond – please fill in these <br />burrows (Photo 7). The channels above the ponds appear clear of debris. No erosional features were noted on the <br />embankments of the conveyance ditches. The trash rack was clear of debris. The RP-4 Pond is located at the <br />northwest base of the pile. The pond dry during the inspection. The southern embankments directly below the <br />stack are beginning to show signs of erosion. The rills that have formed on the embankments of the refuse <br />pile are now cutting into the vegetated embankment. Please repair the rills that have formed on the pond <br />embankment. (Photo 8). Animal burrows were observed in the north embankment of the pond – please fill <br />in these burrows (Photo 9). The outlet for the RP-4 Pond is capped with a trash rack. The outlet was clear of <br />debris. <br />Pond RP-5 is located at the northern base of the RP-5a Refuse Pile. The pond was dry at the time of the inspection. <br />Animal burrows were seen on the eastern embankment of the pond – please fill these burrows to prevent <br />instability (Photo 10). No other indications of erosion were observed. The outlet was clear of obstructions. <br /> <br />PROCESSING WASTE/COAL MINE WASTE PILES – Rule 4.10 and 4.11 <br />Drainage Control; Surface Stabilization; Placement: <br /> The RP-2/3/4 and RP-5a Refuse Piles were observed during the inspection. The piles were observed to be <br />stable with minor localized erosion. The erosion was identified on the slopes of the refuse piles in the form of rills. <br />The rills have been noted and documented in previous DRMS inspection reports. The size and depth of the rills are <br />not thought to compromise the stability of the refuse piles. All material transported through these rills ends up in <br />the perimeter ditches and subsequently the refuse pile ponds. The operator is in the process of grading the side of <br />the refuse piles to remove the rills (Photo 11). Crews are working on RP-5a and will move to other piles soon. The <br />refuse pile ditches were clear of blockages and were dry. <br /> <br />ROADS – Rule 4.03 <br />Construction 4.03.1(3)/4.03.2(3), Drainage 4.03.1(4)/4.03.2(4), Surfacing and Maintenance4.03.1(5) and <br />(6)/4.03.2(5) and (6), Reclamation 4.03.1(7)/4.03.2(7): <br /> The Haul Road was clear and well maintained. There we no sections with ruts or other road damage. The <br />road surface was treated for dust, and no noticeable amount of dust was generated by haul trucks. The ditches that <br />parallel the roads appear to be stable and able to convey water. Surface crews were mowing weeds along the edge <br />of the road during the inspection. <br />CR-65 had no surface cracks or other indications of road damage due to subsidence. Access roads throughout the <br />mine site were traversed during the inspection. Roads were stable and no erosional features were identified. <br /> <br />SUPPORT FACILITIES - Rule 4.04: