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December 2, 2014 C- 1996 - 083 /Bowie No. 2 Mine SLB <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 />Ponds B, C, D, F, and J all held water. Pond K was dry. Pond C was being pumped to the wash plant, but none of <br />the water in any of the ponds was being discharged at the time of the inspection. Bill Bear indicated that Pond B <br />had been discharged off -site in November. All of the pond inlets and spillways were stable and in good condition. <br />The inlet to Culvert B26, which DRMS inspectors were unable to locate during the previous site inspection, had <br />been cleared. Ditches B 14 and B25, feeding Culvert B26, had been regraded to direct flow to the inlet of Culvert <br />B26. Ditch B37 to Culvert B 13 had also been recently maintained. The ditches had been constructed to a depth of <br />about 9 ", in excess of the approved minimum 6" depth. The operator had not removed the unnamed ditch running <br />parallel to Culvert B13. There is a gully on the west side of the conveyor, parallel to Ditch B37, that formed when <br />Ditches B14, 25, and 37 were in disrepair. Drainage from this gully was intercepted by the unnamed ditch parallel <br />to Culvert B13, and routed through B Gulch to Pond B. With recent maintenance, flow to the west gully will most <br />likely be cut off, negating the need for the unnamed ditch. When spring runoff occurs it will be apparent whether <br />the currently approved design is effective or whether the unnamed ditch will need to remain in place. At that time, <br />no later than May 31, 2015, BRL should either remove and regrade the unnamed ditch or modify the approved <br />drainage plans to provide design details for the ditch. <br />The inlets to Culvert K2 and the railroad culvert upstream of Culvert K2 were clear, but sediment had built up to <br />the lip of both culverts. The sumps in front of the inlets should be cleaned before the sediment begins to clog the <br />culverts. <br />PROCESSING WASTE /COAL MINE WASTE PILES Rule 4.10 and 4.11 Drainage Control; Surface <br />Stabilization; Placement: <br />Gob Pile #1 <br />Gob Pile #1 was idle during the inspection. The Division is currently reviewing a revision to the permit to provide <br />a demonstration that the refuse pile is stable as constructed, with a 1.5:1 slope on 0.1 acres of the pile face. The <br />operator will wait to finish reclamation (revegetation) of Gob Pile #1 until the Division determines whether <br />additional grading will be required. <br />Gob Pile #2 <br />Refuse material from the wash plant was being hauled to the upper bench of Gob Pile #2, where it was windrowed <br />for drying prior to placement and compaction. <br />Refuse material from the upper drying area was being hauled down to Bench 43, where Gob Pile #2 and #4 are <br />combined (TR -76 area). The refuse material from the upper bench was being mixed with refuse material that was <br />being excavated from Bench 44, where it was then spread and compacted on Bench #3. This material handling <br />plan is consistent with the approved plan in the permit application package and with the recommendation from <br />Buckhorn Geotech (consultant to BRL) that existing refuse in Gob Piles #2 and #4 be excavated and keyed in to <br />ensure cohesion between the two piles. <br />Refuse material in the drying area atop the upper bench of Gob Pile 92 had been placed to ensure drainage off of <br />Number of Partial Inspection this Fiscal Year: 6 <br />Number of Complete Inspections this Fiscal Year: 2 <br />Page 3 of 15 <br />