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REP12201
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REP12201
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Entry Properties
Last modified
8/24/2016 11:43:03 PM
Creation date
11/27/2007 12:51:06 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1977004
IBM Index Class Name
Report
Doc Date
1/3/2003
Doc Name
2002 Geotechnical Report
From
Homestake Mining Company
To
DMG
Media Type
D
Archive
No
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2002 <br />PITCH PROJECT <br />GEOTECHNICAL OBSERVATIONS -Indian Creek and Tie Camp Waste Rock Dumps <br />I. <br />A. <br />B. <br />C. <br />D. <br />E. <br />F. <br />Iudian Creek Waste Rock Dumo <br />"10800" Level <br />Site Description: Identical to that of past reports for 1996 through 2001. <br />2002 Observations: The 2002 observations are similaz to those reported for this area <br />during the past 6 years. Visual inspection of the area has revealed no evidence of settling <br />or slumping of the dump material in 2002. Drainage channels are functioning as <br />designed. <br />"10780 - 10650" Level <br />Site Description: Identical to that of past reports for 1996 through 2001. <br />2002 Observations: The 2002 observations aze similar to past observations. Visual <br />inspection of the area has revealed no evidence of settling or slumping of the dump <br />material in 2002. Drainage channels are functioning as designed. <br />"10650 - 10600" Level <br />Site Description: Identical to that of the past reports for 1996 through 2001. <br />2002 Observations: In October 2001 an obstruction was removed from Piezometer <br />IC 10600, allowing it to be used for the collection of piezometric surface data. The <br />maximum annual water level fluctuation observed in this piezometer was 0.4 feet, which <br />is an acceptable seasonal variation. <br />"10725 - 10525" Level <br />Site Description: Identical to that of past reports for 1996 through 2001. The minor <br />overlap between [his level and other bench designations reflects the original bench <br />configuration. <br />2002 Observations: Piezometers IC 10600 and IC10525 bound this azea. Water levels in <br />IC10525 have remained in an equilibrium condition w$h only a minor seasonal <br />fluctuation of 0.7 feet in a total dump thickness of about 228.8 feet. Data from IC10600 <br />showed a similar seasonal fluctuation with a maximum range of 0.4 feet. HMC will <br />continue to monitor this piezometer in the future and review the data for any anomalies. <br />"10600 -10400" Level <br />Site Description: Identical to that of past reports for 1996 through 2001. <br />2002 Observations: The 2002 observations are similar to past years. Piezometer IC 10440 <br />was located in this azea however; it was lost in September 1996. Piezometer IC10525 <br />can also be considered to be within the area. The 2002 data for that piezometer is <br />described above. <br />"10400 -10370" Level <br />Site Description: Identical to that of the past reports for 1996 through 2001. <br />2002 Observations: The 2002 observations are similar to past years. Piezometer IC10360 <br />is located in this area. Water levels in this piezometer averaged about 10141.7 feet above <br />
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