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In the case of the 009 pond, the corrugated metal spillway was removed and replaced by <br /> a rock lined channel. The corrugated metal dewatering device was removed from the <br /> embankment and the sides of the excavation were graded to a 2 H : 1 V or shallower. <br /> The base of the excavation was well armored with native rock rip rap and the excavation <br /> sides were fertilized, seeded and mulched. There was no discharge from the pond during <br /> construction due to the low water elevation at the time. <br /> The 009 pond discharges to a second, lower pond which is located east of, and adjacent <br /> to, the former location of the Dutch Creek Flume. During active operations, this pond <br /> was dewatered directly into the Dutch Creek Flume by a pair of small Poly Vinyl <br /> Chloride pipes. Because the Dutch Creek Flume was eliminated in 1999, an alternative <br /> drainage had to be constructed to convey the outflow to Coal Creek. The PVC pipes <br /> were filled with non-shrink grout in order to eliminate drainage toward the old flume <br /> location. A new channel was constructed from the north end of this pond for a distance <br /> of about three hundred feet. This channel was lined with C-125 aspen fiber mat, to <br /> provide for erosion control. Because the channel loses elevation quickly over the <br /> northern most fifty feet, and because of the extreme erodability of the underlying <br /> material, a design for the final seventy five feet or so of the channel had to be <br /> implemented. A channel was constructed using straw bales for the base and sides. These <br /> bales were anchored by excavating the ground, placing and staking the bales in place, and <br /> then backfilling around them. The C-125 mat was extended over the top of this structure. <br /> This channel will be monitored during 2000 in order to determine its effectiveness in <br /> conveying the runoff to Coal Creek. Modifications, if necessary, will be made at that <br /> time. <br /> The 001 pond system is a series of four settling ponds located adjacent to Coal Creek <br /> below the mine facilities area. This pond system treated stormwater effluent derived <br /> from the former mine facilities area. As discussed in our 1998 annual report for <br /> Stormwater permit COR040204, reclamation construction at that time bifurcated the <br /> contributing area to these ponds, so that drainage from only the eastern half of the mine <br /> facilities area reported to the 001 ponds. <br /> The portion of the mine facilities area located east of the Dutch Creek Diversion was <br /> reclaimed in 1999. Reclamation of this area has eliminated the need to maintain the 001 <br /> inlet ditch and pond system. Further, completion of the Bear Creek reclamation project, <br /> located near the eastern margin of the Old Refuse Pile, and immediately adjacent to both <br /> the 001 pond inlet ditch and the upper two 001 ponds, required that the inlet ditch be <br /> eliminated and that the upper most 001 pond be filled with earthen materials. <br /> The only water which the ditch conveys is ground water which discharges to the ditch in <br /> the form of springs and seeps. The flow of the inlet ditch was diverted into Coal Creek <br /> about one half mile below the confluence of Coal and Dutch Creeks. The small amount <br /> of flow in the ditch passes through passive treatment systems prior to reaching Coal <br /> Creek. Near its point of diversion, the water passes through a gravel blanket, then flows <br /> through a woven mat constructed of aspen fibers and ultra violet resistant netting. After <br /> 4 <br />