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Some limited undercutting was noted in the Purgatoire River in the reconstructed <br />section west of the prep plant. A large boulder in the stream has caused waters <br />to erode a small section of the south bank during high flows. Movement of the <br />large boulder should eliminate the problem. <br />Processing Waste <br />The refuse pile drainage was directed to the side drains appropriately. Side <br />drains appear to be functioning well. There was no evidence of flow over the <br />reclaimed face of the fill. 100-year ditches above the pile appeared capable of <br />functioning as designed. The pile appeared stable with no sign of slumps or <br />damage. The small seep on the fourth outslope did not appear to be active and <br />slightly damp. Vegetation on the fourth bench outslope is doing very well and <br />appeared diverse and healthy. Weed infestations were not noted. No rills or• <br />gullies were noted on this slope. The erosion control netting has nearly <br />completely degraded. <br />The Development Waste pile appeared in good condition. Required compaction <br />testing due to placement of pond cleanings on the pile should be done prior to <br />late summer rains. In addition, the lower south-facing slope of the pile should <br />be covered with subsoil, topsoil, and revegetated this field season. This slope <br />was re-graded in 1995 to final grade in preparation of this work. Rills and <br />gullies are developing due to the lack of hydrologic cover. <br />General Mine Plan Compliance <br />The mine remains in temporary cessation awaiting coal from the Lorencito Canyon <br />mine. The Lorencito permit was issued November 7, 1997. The Lorencito permit has <br />been extended to May 10. 2002 for commencement of operations. <br />Suhc i rlPnra <br />The small subsidence collapse above culvert C24 at the West mine area has been <br />repaired, although the fill material needs to be graded to allow surface runoff to <br />flow to the north. Following re-grading, the repaired area should be fenced to <br />keep out livestock, wildlife, and others. The depth to the roof of the portal <br />entry was estimated at 30.5 feet based on a 14% angle of decline of the manway <br />portal and a horizontal distance of 235 feet between the manway and the sinkhole. <br />Overall, the site continues to be well maintained and no significant problems were <br />noted. <br />4 <br />