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July 30, 2024 C-1981-018/Deserado Mine TJ1 <br /> <br /> <br />Number of Partial Inspection this Fiscal Year: 1 <br />Number of Complete Inspections this Fiscal Year: 0 <br /> <br /> Page 3 of 12 <br /> <br />the three facilities benches. The outlet structure was clear of debris and the pond was discharging at the time of <br />inspection. The embankments appear stable with well-established vegetative cover. The emergency spillway has <br />minor amounts of vegetation, but still appears to be able to convey water and is well armored. There were no <br />erosional concerns identified. Channels that convey water to the pond are in good condition, free of obstruction, <br />and are functioning as designed (Photo 1). The PP-1 Pond is located on the middle bench of the facilities area near <br />the prep plant. The pond was below the discharge level. There were no erosion or stability issues identified in the <br />PP-1 Pond. The PP-2 Pond is located on the upper facilities bench. The eastern embankment contained animal <br />burrows (Photo 2). The animal burrow was filled to prevent instability in the embankments. The outlet <br />structure was in good condition with no vegetation obscuring the outlet. Water diversion ditches throughout the <br />main facilities area were unobstructed and stable. <br />The B Seam Dewatering System No. 1 was active during the inspection. Cells were impounding water. There was <br />well established vegetation on the embankments of the cells. The cells were stable with no erosional or other <br />stability features noted. The Last Chance Pond was discharging at the time of the inspection. (Photo 3) <br />The SS-2 Pond is located at the northwestern base of the Slot Storage Facility. The pond was dry at the time of the <br />inspection. The embankments of the pond were well vegetated and stable with no indications of erosion. <br />The RS-1 Sump and the RR-1 Pond are located at the south side of the Rail Loadout. The RS-1 Sump was dry and <br />stable. There were no indications of erosion. The RR-1 Pond was also dry. The embankments of the pond seem <br />stable. The erosion feature on the northern embankment that has been noted in previous inspection reports does <br />not appear to have grown in size. (Photo 4) The Rail Loadout Storage South Ditch is free of obstructions and <br />able to convey water. <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 and were filled during <br />the inspection (Photo 5). The channels above the ponds appear clear of debris. No erosional features were noted <br />on the 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 rills on the southern embankment of the pond <br />have been repaired. The outlet for the RP-4 Pond is capped with a trash rack. The outlet was clear of 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 and were filled during the inspection to <br />prevent instability (Photo 6). No other indications of erosion were observed. The outlet was clear of <br />obstructions. <br /> <br />