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March 30, 2023 C-1980-004/McClane Canyon Mine CCW <br /> FISH and WILDLIFE—Rule 4.18: <br /> Throughout the inspection of the mine site, several sets of deer tracks and scat were seen. <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 /> Two sumps are located at the west end of the mine office pad. One sump is located on the north side of <br /> the haul road and the other is located on the south side of the haul road. The north sump was holding water during <br /> the inspection(Photo 1). The sump was approximately 1/3 full. The silt fence at the outlet of the sump was in <br /> good condition. There were no indications of instability or erosion. The south sump was also holding water and <br /> was 1/4 full. The silt fence at the outlet was intact. There were no erosional features or indications of instability <br /> observed. <br /> There is one sediment pond located at the mine site (Photo 2). The pond is located east of the mine office pad and <br /> west of the coal waste pile. During the inspection the pond was holding water. The level of water in the pond was <br /> below the primary discharge outlet. The embankment of the pond was stable with vegetative cover. There were <br /> no indications or erosional features. A blue PVC pipe was identified resting on the embankment of the pond. The <br /> pipe was not connected to any discharge structure. Please move the pipe from laying on the embankment. <br /> Three sumps are located along the haul road between the sediment pond and the mine portals bench. The first <br /> sump is located on the north side of the haul road across from the sediment pond. The sump was holding a small <br /> amount of water with no discharge occurring. The discharge outlet was clear of debris and stable. There were no <br /> erosional concerns. The second sump is located on the south side of the haul road just east of the first sump <br /> (Photo 3). The sump was observed to be about 2/3 full. No discharge was occurring from the outlet. The outlet <br /> was unobstructed and stable. No erosional features were identified. The third sump is located further east from <br /> the second sump on the north side of the haul road. A small amount of water was impounded in the sump. The <br /> culver outlet was clear of debris and no discharge was occurring. The sump was stable with no indications of <br /> erosion. <br /> Two additional sumps are located at the portals bench. One sump is located southeast of the portals. The sump <br /> was impounding a small amount of water at the time of the inspection(Photo 4). There was no discharge from the <br /> sump occurring. The grate over the discharge outlet was unobstructed and stable. No erosional; features were <br /> noted. The second sump is located to the north of the portals (Photo 5). This sump was also holding a small <br /> amount of water. The grate on the discharge outlet was clear of debris and stable. There is some material in the <br /> northeast corner of the sump that has slumped off the box canyon wall into the sump. This material was not <br /> recently deposited in the sump and has been noted in previous Division inspection reports. The amount of <br /> material does not affect the sumps functionality and will be cleaned from the sump when the sump undergoes <br /> routine cleaning. <br /> Diversion ditches that were unburied from snow were observed to be stable and in good condition. There were no <br /> sections with blockages observed. <br /> Number of Partial Inspection this Fiscal Year: 0 <br /> Number of Complete Inspections this Fiscal Year: 3 <br /> Page 3 of 10 <br />