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Homestake Pitch Reclamation Project <br />2004 Geotechnical Observations <br />Indian Creek and Tie Camp Creek Waste Rock Dumps <br />1. Indian Creek Waste Rock Dump <br />a) "10800" Level <br />Site Description: Identical to that of past reports for 1996 through 2003. <br />2004 Observations: The 2004 observafions are similar to those reported for this area <br />during the past eight years. Visual inspection of the area has revealed no evidence of <br />settling or slumping of the dump material in 2004. Drainage channels are <br />functioning as designed. <br />b) "10780-10650" Level <br />Site Description: Identical to that of past reports for 1996 through 2003. <br />2004 Observations: The 2004 observations are similar to past observations. Visual <br />inspection of the area has revealed no evidence of settling or slumping of the dump <br />material in 2004. Drainage channels are functioning as designed. <br />c) "10650 - 10600" Level <br />Site Description: Identical to that of past reports for 1996 through 2003. <br />2004 Observafions: In October 2001 an obstruction was removed from Piezometer <br />IC10600, allowing it to be used for the collection of piezometric surface data. The <br />maximum 2004 water level fluctuation observed in this piezometer was 2.4 feet, <br />which is deemed as an acceptable seasonal variation. <br />d) "10725-10525" Level <br />Site Description: Identical to that of past reports for 1996 through 2003. The minor <br />overlap between this level and other bench designations reflects the original bench <br />configuration. <br />2004 Observations: Piezometers IC10600 and IC10525 bound this area. The seasonal <br />maximum water level fluctuation observed in IC10525 was 5.6 feet in a total dump <br />thickness of approximately 229 feet. Data from IC10600 showed a maximum <br />seasonal fluctuation of 2.4 feet. <br />e) "10600 -10400" Level . <br />Site Description: Identical to that of past reports for 1996 through 2003. <br />2004 Observations: Piezometer IC10440 was located in this area; however, it was lost <br />in September 1996. Piezometer IC10525 can also be considered to be within the area. <br />The 2003 data for that piezometer is described above. <br />