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fan itself and other debris remained near the access road, and <br />need to be removed (also the remains of an electric substation). <br />Aug 15, 9:00 - 12:30 <br />Participants: Dan Mathews, Colo DMG <br />Randal Pair, OSM <br />Tonya Hammond, Powderhorn <br />Jim Stover, JE Stover & Assoc, consultant <br />Northwest Intake: this is the current mine water discharge <br />point, and the siphon is to remain as a backup to a new mine <br />water discharge system that is to be installed in the near <br />future (to the NE of the NW decline). Mr. Stover reports that <br />this was backfilled with dirt in 1994. Settlement of the fill <br />had left a 6" high gap going back in under the top edge of the <br />opening. Dan Mathews later reported that this had been <br />backfilled with additional compacted dirt. <br />The Northwest Decline has been backfilled for some years, <br />and no problems were observed. The reconstructed stream channel <br />across the area has been built higher than required, standing <br />partially against berms built above the natural ground surface. <br />When sediment controls are removed, cuts will have to be made <br />through these berms so that runoff from the surrounding area can <br />reach the stream channel. <br />Most of the actual conveyor has been removed. But the <br />suspended portion over the river remains, and transfer <br />buildings, a culvert under the power plant access road, and a <br />culvert N of the access road (culverts heavy metal, about 8' in <br />diameter). In addition, many concrete footers remain along the <br />W side of the river. These are all 6' long, 18" wide, and 9"- <br />20" deep (apparently poured in-place). The culvert under the <br />access road may remain as a permanent structure, but this <br />(including continuing maintenance) may need to be addressed in <br />the permit. The longer culvert to the North must be removed. <br />The North Portal (Cameo #1) was installed at the bottom of <br />a steep, deep ramp excavated down to the coal seam. A metal <br />backstop has been installed across the opening. The intention <br />is them to backfill the deep pit above this. Jim Stover reports <br />that this area is an approved landfill, and that construction <br />debris (from mine reclamation) will be placed in 5' lifts, then <br />dirt will be worked in to fill all voids prior to the next lift. <br />The adjoining fan is in place. <br />Activity since the inspection: <br />In discussions with Bruce Fowler (BLM) after the <br />inspection, BLM's main concern was that all portals be <br />