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March 12, 2024 C-1981-018/Deserado Mine TJ1 <br /> <br /> <br />Number of Partial Inspection this Fiscal Year: 6 <br />Number of Complete Inspections this Fiscal Year: 3 <br /> <br /> Page 3 of 13 <br /> <br />passes down a channel through straw bales. The deteriorated bales that were noted in the November Inspection <br />Report have been replaced (Photo 1) <br /> <br />FISH and WILDLIFE – Rule 4.18: <br /> Throughout the areas inspected at the Deserado Mine, numerous sets of ungulate tracks were seen in the <br />mud. A number of songbirds were also heard throughout the mine site. <br /> <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 /> There are three ponds located in the main facilities area: the DP-1 Pond, the PP-1 Pond and the PP-2 Pond. <br />The DP-1 Pond is located on the southern part of the lower facilities bench. DP-1 collects all runoff from the from <br />the three facilities benches. The outlet structure was clear of debris and the pond was discharging at the time of <br />inspection (Photo2). The embankments appear stable with well-established vegetative cover. There were no <br />erosional concerns identified. The PP-1 Pond is located on the middle bench of the facilities area near the prep <br />plant. The pond was below the discharge level. A small amount of snow remained on the north side of the pond. <br />There were no erosion or stability issues identified in the PP-1 Pond. The PP-2 Pond is located on the upper <br />facilities bench. The embankment was stable with no erosional features identified. The outlet structure was in good <br />condition with no vegetation obscuring the outlet (Photo 3). Water diversion ditches throughout the main facilities <br />area were unobstructed and stable. Snowmelt was being properly conveyed. Minor amounts of sediment are <br />beginning to accumulate in area, but ditch cleanout is performed annually in the spring. <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 4) <br />The B Seam Dewatering System No. 2 is located to the east of the Slot Storage. The system was inactive during <br />the inspection. The upper cell had no indications of water being present and the embankments were appeared <br />stable. The main cell was holding a small amount of water below the level of discharge. The outlet appeared clear <br />of debris. The embankments of the pond were stable with no indications of erosion. (Photo 5) The lower cell had <br />no indication of water being present and the embankments appear stable. <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. There <br />were no indications of erosion. The RR-1 Pond was also dry. The embankments of the pond seem stable. The <br />erosion feature on the northern embankment that has been noted in previous inspection reports does not appear to <br />have grown in size. (Photo 6) The Rail Loadout Storage South Ditch is congested with brush, please <br />remove brush from the ditch. (Photo 7)