2024-03-22_INSPECTION - C1981018

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March 12, 2024 C-1981-018/Deserado Mine TJ1 Number of Partial Inspection this Fiscal Year: 6 Number of Complete Inspections this Fiscal Year: 3 Page 5 of 13 The RP-1 refuse pile has been reclaimed for several years. Vegetation is well established and protects the pile. No indications of instability of erosion were observed. The permiter diches appear stable with no erosion concerns. SUPPORT FACILITIES - Rule 4.04: Support facilities that were inspected include the main facilities/portals area, B Seam Vent Shaft #1, RDH- 3, RDH-4, the conveyor corridor, Slot Storage and water tank/radio tower. The main facilities for the Deserado mine are composed of three benches. The lower bench contains the mine, office, shop, and portals. The middle bench contains the prep plant, and the upper bench contains a materials laydown yard and electric substation. The drainage structures in the main facilities area were functioning correctly. There were no indications of erosional features on the three benches and berms were in good condition. The material laydown yard is well kept and organized. The safety fence surrounding the electric substation was in good condition. The B Seam Vent Shaft #1 is located north of the main facilities off of the haul road. The pad was stable with no erosional features. The fencing around the shaft to prevent unauthorized entry was in good condition. The pad for RDH-3 rock dust tank is located to the east of the B Seam Vent Shaft #1. The pad is stable with no erosional features (Photo 10). The Slot Storage is located in the northern part of the permit area just to the south of the rail loadout. There were no indications of erosion on the pad or on the slopes that contain the Slot Storage. The pad was well kept. The pad for RDH-4 rock dust tank is located on the north side of the B Seam Dewatering System #1. The pad for the tank was stable with no indications of erosion. During the inspection the Conveyor Corridor was traversed. The conveyor was running and well maintained. There were no indications of erosion underneath the conveyor. SIGNS AND MARKERS – Rule 4.02: A mine identification sign was observed to be posted on the right-hand side of CR-65 as the county road enters the permit boundary. The sign was placed in an unobstructed location and the text was easily legible. Information on the sign contained the mine permit number, permittee name and contact information. The signs also display contact information for the Division. TOPSOIL – Rule 4.06 Removal 4.06.2; Substitute Materials 4.06.4(4); Storage and Protection 4.06.3; Redistribution 4.06.4: Topsoil stockpiles are located throughout the mine site. Topsoil stockpiles observed during this inspection include the B-Vent Raise, rail loop, and RDH-3 stockpiles. The stockpiles were protected by vegetation and showed no indications of erosion or instability. Each topsoil pile that was observed had topsoil markers at the top of the pile. The markers are T-posts covered with pieces of white PVC. The markers were placed in visible locations and easy to spot.