_INSPECTION - C1981012 (10) - Laserfiche WebLink

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July 23, 2013 C-1981-012/New Elk Mine LDS report of October 16,2012, and is not the subject of a permitting action,the Division finds that this is a violation for failure to maintain ditches in accordance with the approved design. This is discussed further in the ENFORCEMENT ACTIONS section of this report. • At the east end of the diversion ditch,below the cell phone pad,there was evidence of clean runoff flowing through undisturbed land,into culvert C41. There was a little erosion at the top which should be addressed with some armoring. The same thing had occurred on the switchback below. Some flow control is also needed on the roads used to access the power poles. • There was no sign of recent disturbance at the cell phone tower pad, or the lower pad located immediately to the north. • The unlabelled culvert under the road on the east side of the RDA was partially blocked with sediment. This culvert should be identified and cleaned. • There were some large puddles on the top of the RDA. The swales in the refuse should be extended when conditions allow,to ensure that no water is allowed to collect on the RDA. • A culvert on the RDA, level with the highest reclaimed bench, is not shown on map 13. It was partially crushed,so needs repair.It also needs to be permitted; this should be addressed in TR68. • The damaged section of the culvert under the conveyor, C41,had been replaced and the area around it filled and restored. Delivery of a final 30' section of culvert is holding up the completion of this project. The final section should be placed and the surrounding area backfilled around it; since this item was first identified in the inspection report of October 16,2012, and is not the subject of a permitting action,the Division finds that this is a violation for failure to maintain culverts in accordance with the approved design. This is discussed further in the ENFORCEMENT ACTIONS section of this report. • The gully by the junction of the conveyors was huge and had grown significantly since the April inspection. A long term solution might be to create a concrete structure,with a sump,to collect conveyor runoff and pump it up to the RDA. In the short term,spilled refuse should be cleared,the gully should be repaired, and a berm should be built up to protect it.A couple of other gullies lower down the conveyor line should be addressed in the same way. • Along the conveyor line, spilled refuse should be shoveled back onto the belt and sent up to the RDA. • Culverts under the haul road up the west side of the RDA were as follows: C40,good; C-B,good; C39, a little erosion at the outlet to monitor; C45,good; C-A is mis-located on map 13, and has some erosion at the outlet. The position of C-A should be corrected when the map is redrawn and the erosion should be repaired. • Pond 8 was holding water but not discharging. The embankments and spillways of pond 8 were sound. • Above pond 8 is an old light use road that has been used infrequently to maintain down-drains—it could be a candidate for reclamation. For now,this should be added to the map. • Containment 5 was in good condition. Between the highway and the river: • The newer Development Waste Disposal Area(DWDA 2) appeared stable,however there was some erosion of the surface. The ditches around the pile (D12, 13 and 14)receive a great deal of sediment and Number of Partial Inspection this Fiscal Year: 0 Number of Complete Inspections this Fiscal Year: 1 Page 7 of 29