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• (Page 2) • <br />MINE ID k OR PROSPECTING ID !# M-1977-215 <br />INSPECTION DATE 8-3-2000 <br />INSPECTOR'S INITIALS SSS <br />This was a partial inspection conducted as part of DMG's routine inspection program for active mine sites in Colorado <br />The 9360 adit plug showed a pressure of 8.5 P. S. I. of water behind the plug. There was minimal dripping from the adit <br />back for several feet from the plug face. No signs of leakage from the plug were noted. There was no water discharging <br />from the portal. <br />The operator indicated that the EPA had inspected the site during the previous week and they had required Homestake to <br />plug the inlet to the infiltration trench. The inlet to the trench and the two water level standpipes for the trench had been <br />grouted shut. No reason was given for the EPA's requirement. <br />There was no flow in Windy Gulch. Seeps DT-1 and DT-2 were dry. <br />Trash that had been buried near the crest of the 9360 level dump, had slowly been working it's way to the surface. The <br />operator used an excavator to pull back the crest of the southeast side of the dump and remove the trash. The area was <br />subsequently regraded. Trash that had worked its way down into Windy Gulch had been picked up as well. <br />The Canada thistle problem on site is being reduced, but still requires diligent efforts to control the problem. Patches of <br />thistle were noted on the west side of the 9360 level, along the lower tailing pond access road and in the outlet channel <br />for the lower tailing pond. The operator obviously been spraying the thistle earlier this year, as the seed heads were <br />drooping and brown on many of the plants. <br />Trees and shrubs planted on the 9700 level dump many years ago appear to have finally taken hold. These plants appear <br />to be significantly larger that they were last year. The mountain mahogany is slow growing while all others are growing <br />quite fast for the conditions. <br />The project of borrowing material from the natural slopes around the lower tailing pond and using that material to cover <br />the north end of the tailing has been completed and revegetative 0rowth seems to be doing well. Tailing pond slopes on <br />the west side that were overly steep and not showing adequate signs of revegetation establishment have been laid back <br />and reseeded. Revegetative growth appears to be establishing on these reworked slopes. The area on the east side of the <br />pond, where the material was borrowed from, is showing less successful revegetation. These slopes are showing some <br />signs of surface erosion. The operator indicated these areas would be reseeded. It was recommended that these slopes <br />be worked to leave some small contour furrows to break up surface flows. Same mulch and tackifier or netting may be <br />necessary to hold the seed in place. <br />The problems identified in the June 9, 1999 inspection report relating to the 9700 level waste rock dump remain. The <br />operator and DMG are waiting for the USFS to sign off on proposed work to be conducted to install a drainage bypass for <br />the 9700 level dump. <br />Responses to this inspection report should be directed to Steve Shuey at the Division's Durango Field Office. The address <br />is; Division of Minerals and Geology, 701 Camino del Rio, Room 125, Durango, Colorado 81301, phone no. 970-247-5062. <br />I & E Contact Address <br />NAME Rov Cellan <br />OPERATOR Homestake Mining Comoanv <br />STREET P. O. Box 98 <br />CITY/STATE2IP Grants. New Mexico 87020 <br />cc: Tom Gillis, DMG <br />^ CE <br />^ BL <br />^ FS <br />^ HW <br />^ HMWMD ICHI <br />^ SE <br />^ WOCD (CHI <br />^ OTHER <br />