2014-03-11_INSPECTION - C1996083

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March 11, 2014 C- 1996 -083 /13owie No. 2 Mine SLB Ponds B, C, D, F, and J all held water. Pond K was dry. The sewage treatment plant was being discharged to Pond B. The operator began discharging Pond C into Pond D during the inspection. The water being discharged was very turbid. The operator indicated that if the water cleared up, it would be sampled and discharged through the approved CDPS outfall. The Division is currently reviewing a technical revision (TR -84) to expand Pond J. The expansion area was traversed during the inspection. There is a round concrete structure, approximately 6' diameter and 30" high in the path of the expansion area. The operator indicated that he would research the structure to determine what it is and whether any special handling will be required to remove it prior to excavating for Pond J. Culverts and ditches on the upper fan bench, D Portal bench, and B portal bench were functional. The water tank pad, above the Coal stockpile bench (north of Curve 1) had been regraded to better establish the berm and ditch to direct runoff to Culvert 1313. The berm should be extended more to the east to ensure that no runoff does not cause erosion on the eastern outslope of the pad. Additionally, the outfall of Culvert B 13 needed to be maintained where downcutting has occurred. Straw bales were in place along the Gob Pile 42 haul road, where clean water from the drainage area west of Gob Pile 42 crosses under the road. The west end of the railroad spur area, where the approved sediment control is a vegetative filter and sediment traps, was in good condition. Grasses were beginning to emerge on the outslope of the tracks, and no erosion or sedimentation was evident. Small area exemptions and areas of alternate sediment control on the gob vent boreholes, Terror Creek shaft, and Hubbard Creek fan site were not accessible due to muddy road conditions; the operator attempted to traverse the roads but was unable to gain traction. The silt fence on the south side of the Pond F access road was in poor condition. Vegetation on this area, however, appears sufficient to control erosion. The operator will work with the Division to determine whether the area can be approved with a vegetative filter for sediment control. PROCESSING WASTE /COAL MINE WASTE PILES — Rule 4.10 and 4.11 Drainage Control; Surface Stabilization; Placement: Gob Piles 1, 2, and 4 were inactive at the time of the inspection. End dumped material was observed on the upper bench, on the east end of the pile. All material has been graded to drain, with the exception of a small puddle on the northern tip of the pile, approximately 20'x50'. The operator indicated that much of the stockpiled material on Gob Pile 43 would be turned over in the coming weeks to continue the drying process so that compaction could commence. Number of Partial Inspection this Fiscal Year: 12 Number of Complete Inspections this Fiscal Year: 3 Page 3 of 16