2008-04-18_REPORT - M1977004

• Permit No: M1977004
• IBM Index Class Name: REPORT
• Doc Date: 4/18/2008
• Doc Name: Annual Fee/Report/Map
• From: Homestake Mining Company
• To: DRMS
• Permit Index Doc Type: Annual Fee/Report
• Email Name: RCO
• Media Type: D
• Archive: No

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' times the magnitude that has commonly been observed in these areas over the past
ten years, the magnitude is still relatively low. The site inclinometers, as discussed in
the following section, do not indicate slope displacement greater than instrument error
for a similar monitoring period, because they are not located in either area where
' displacement occurred. The small slump at the east wall of the South Pit does not
present any risk to personnel or monitoring activity. The northeast corner of the North
Pit is the area where the two 1983 slope failures took place.
i
e North Pit and the slump above the east wall of the
In 2008, the northeast corner of th
South Pit will be inspected as soon as the areas are free of snow and again after the
' summer rains. The slump above the east wall of the South Pit will be repaired this
summer by re-grading to a more stagy ble configuration that allows optimum drainage and
minimal infiltration of surface water!
Table 1 2006-2007 Survey Monument Displacement
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iJ
1

Monument ID Displace
ft ent Dip Direction
de Dip Angle
de
1942 0.29 ~i ~ 239 -38
198-2 0.10 307 6
C941 0.33 ~ ~~ 232 -31
MP-08 0.22 ~ p 242 -16
MP-12 0.35 I ; 243 -22
MP-18 0.64 j . 246 -20
MP-23 0.45 ~ ~i 244 -13
MP-24 0.33 I. 249 -23
MP-25 0.31 ~ h 240 -38
MP-26 0.26 I' 249 -48
MP-27 0.43 '; 245 -44
MP-28 0.34 !' 235 -21
MP-29 0.42 '~ 239 -14
MP-34 0.39 224 -26
MP-35 0.46 238 -26
MP-36 .
0.46 241 -26
MP-37 0.49 ~ 238 -6
MP-38 0.50 ~i 220 -3
MP-43 0.13 175 26
MP-59 0.20 I~ 313 -12
MP-63 0.47 !, 258 5
Pitch Reclamation Project
Colorado Mined Land
Reclamation Board
2007 Annual
Reclamation Report
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