2022-10-04_INSPECTION - C1981018

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September 29,2022 C-1981-018/Deserado Mine CCW Two ponds are located at the slot storage facility. The SS-1 pond is near the northeastern base of the facility. The pond was damp during the inspection. The embankments were stable and vegetated. No indications of erosion were seen. The spillway was unobstructed. The SS-2 pond is located at the northwestern base of the facility. The pond was dry. The embankment was vegetated and stable (Photo 1). There were no indications of erosional features. The spillway for the pond was clear and the trash rack over the spillway was unobstructed. The B Seam Dewatering System No. 2 was inactive during the inspection. The second cell was observed to have a small amount of water impounded in it. The embankments for the cells in the system were stable with vegetative cover. There were no indications of erosion. The spillways were observed to be clear. The B Seam Dewatering System No. 1 was active during the inspection. All cells of the system were impounding water. Discharge from the Last Chance Pond to Red Wash was observed(Photo 2). The embankments of the cells were stable with dense vegetative cover. The discharge outlet was observed to be clear of debris. The riprap channel was stable. There were no erosional features observed. The RP-1 pond was dry. The pond is located at the northern base of the reclaimed RP-1 refuse pile. The embankment had no indications of erosional features and was stable. The embankment was covered with vegetation. The trash rack on the spillway was observed to be unobstructed. The RP-2/3 pond is located at the northeastern base of the RP-2/3/4 refuse pile. The pond consists of three cells; the main cell,the east cell and the west cell. The west and the main cells were damp during the inspection. The west cell was holding a small amount of water. There was no discharge from the east cell to the main cell. The embankments of the cells were stable with vegetative cover. There were no indications of erosional features. The trash rack on the main cell's spillway was clear of debris. The RP-4 pond is located at the northwestern base of the RP-2/3/4 refuse pile. The pond was dry at the time of the inspection. The trash rack on the spillway was unobstructed. The pond's embankment was vegetated and stable. No erosional concerns were identified. The RP-5 pond is located to the north of the base of the RP-5a refuse pile. The pond was dry. The spillway was clear of blockages. The embankment was stable with vegetative cover(Photo 3). There were no erosional features noted. The RP-A pond is located at the eastern base of the RP-A refuse pile. The pond was dry. The embankment for the pond was stable and there were no indications of erosion. There are three ponds located within the main facilities area.The DP-1 pond is located on the lower bench. The pond was impounding water during the inspection. Discharge through the primary spillway was observed (Photo 4). The trash rack on the spillway was unobstructed. The pond's embankment was stable with vegetative cover. There were no erosional features observed. The PP-1 pond is located on the middle bench at the prep plant. The pond was holding water; however,there was no discharge. The outlet was observed to be unobstructed. Embankments for the pond were stable and no erosional was identified. The PP-2 pond is located on the upper bench. The pond was holding water with no discharge occurring(Photo 5). The pond's outlet was clear of debris. PP-2's embankment was vegetated and stable. No erosional features were observed. Ditches throughout the main facilities area were clean and no obstructions were observed. Number of Partial Inspection this Fiscal Year: 2 Number of Complete Inspections this Fiscal Year: 1 Page 3 of 10