Laserfiche WebLink
2003 Observations: Piezometer IC10440 was located in this area; however, it <br />was lost in September 1996. Piezometer IC10525 can also be considered to <br />be within the area. The 2003 data for that piezometer is described above. <br />F. "10400 -10370" Level <br />Site Description: Identical to that of past reports for 1996 through 2002. <br />2003 Observations: The 2003 observations are similar to those reported in <br />the past. Piezometer IC10360 is located in this area. Water levels in this <br />peizometer averaged about 10144.9 feet amsl, with a seasonal fluctuation of <br />approximately 13.6 feet. Following the drought conditions experienced during <br />2002, the maximum water level for 2003 returned to levels observed in <br />preceding years. The total depth of this peizometer is 260 feet and the <br />thickness of the dump is approximately 240 feet. <br />Piezometer IC10370 is also located in this area. Water levels in this <br />piezometer have stabilized at about 10189.7 feet amsl, with a seasonal <br />fluctuation of 0.9 feet for 2003. The bottom of this piezometer is at 10188.5 <br />feet amsl. <br />During 1997, Homestake reconstructed the face of the permanent low-grade <br />stockpile located on the Indian Creek Waste Rock Dump. The purpose of the <br />slope reconstruction was to reduce the potential for infiltration and promote <br />more rapid runoff from the slope. No seepage was observed in this area in <br />2003. <br />G. "10300 -10100" Level <br />Site Description: The Indian Creek Waste Rock Dump was regraded in 1994 <br />following procedures approved in the February 1994 Technical Revision. <br />During 1995, several minor, localized areas of slope instability were noted, <br />corrected, and reported in the 1995 Annual Geotechnical Report. <br />2003 Observations: Usual observations indicate that the repairs performed in <br />1995 were successful and no new areas of surfidal instability (slips) were <br />observed from 1996 through 2003. Piezometer IC10300 is located in this <br />area. Water levels,in this-peizometer averaged about 10109.3 feet amsl, with <br />a maximum seasonal fluctuation of approximately 11.4 feet. Following the <br />drought conditions experienced during 2002, the maximum water level for <br />2003 was back in line with those observed in preceding years. <br />II. Tie Camp Waste Rock Dumn <br />A. "10400 -10100" Level <br />Site Description: The Tie Camp Waste Rods Dump was regraded in 1994 <br />following procedures approved in the February 1994 Technical Revision. <br />Homestake Pitch Reclamation ProjeG <br />2003 Annual Geotechnical Report <br />NF7977-004HR <br />20l%iReportText <br />2 <br />