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September 29,2022 C-1981-018/Deserado Mine CCW <br /> The SDH-3/5 D Seam Dewatering System was inactive. The lower cell in the system is the only cell that is used <br /> when the system is active. The cell's embankment was stable and had vegetative cover. There were no <br /> indications of erosion. The riprap outlet was unobstructed and stable. <br /> The Raw water Lagoon was impounding water during the inspection. The pond's embankment was vegetated and <br /> stable. No indications of erosional features were seen. <br /> PROCESSING WASTE/COAL MINE WASTE PILES—Rule 4.10 and 4.11 <br /> Drainage Control; Surface Stabilization;Placement: <br /> There are three active refuse piles at the Deserado Mine. The RP-2/3/4 pile had refuse material spread out <br /> on the top. The slopes of the pile were stable with localized erosion. The rills have been documented in the <br /> Division's previous inspection reports. The slope faces are included in this fall's maintenance list. The RP-5a <br /> refuse pile also had refuse material spread out on the top. The sloes for the pile were observed to be stable with <br /> similar localized erosion to RP-2/3/4. The slopes are also included on this fall's maintenance list. The localized <br /> erosional features on both RP-2/3/4 and RP-5a do not seem to affect the piles' stability. The RP-A refuse pile had <br /> some refuse material stockpiled for drying on it. The pile is relatively new and the footprint of the base of the pile <br /> is still progressing. The refuse area was stable and there were no erosional concerns identified. <br /> SUPPORT FACILITIES -Rule 4.04: <br /> Support facilities inspected included;the slot storage,the nitrogen plant 92,the conveyor corridor,RHD- <br /> 4,RDH-2,the B Seam Vent Shaft No 1 pad(Photo 6),Haul road blisters,the Main Facilities benches,the fuel <br /> storage (Photo 7), and the explosives storage. All pads for the support facilities were observed to be stable with no <br /> erosional features. Pads with cut slops were stable with no sloughing. Pad berms were vegetated and stable. <br /> There were no off site impacts observed. <br /> SIGNS AND MARKERS—Rule 4.02: <br /> Mine identification signs are located at both the north and south entrances to the permit area on CR65. <br /> The mine id signs are displayed in unobstructed locations. The signs had the required current information for the <br /> permit,the permittee and the Division. <br /> TOPSOIL—Rule 4.06 <br /> Removal 4.06.2; Substitute Materials 4.06.4(4); Storage and Protection 4.06.3;Redistribution 4.06.4: <br /> Topsoil piles for the Deserado Mine are spread out throughout the mine site in locations next to the mine's <br /> surface disturbances. The topsoil piles inspected throughout the mine site were stable with vegetative cover <br /> (Photo 8). There were no erosional features observed on any of the piles. The perimeter ditches were dry and <br /> stable. There were no indications of the loss of topsoil resources. All piles had a topsoil pile markers placed on <br /> top of them with a white capped T post. <br /> DOCUMENTS RECEIVED: None <br /> OTHER(SPECIFY): None <br /> Number of Partial Inspection this Fiscal Year: 2 <br /> Number of Complete Inspections this Fiscal Year: 1 <br /> Page 4 of 10 <br />