2013-01-31_REPORT - M1973021 ‎(2)‎

• Permit No: M1973021
• IBM Index Class Name: REPORT
• Doc Date: 1/31/2013
• Doc Name: Annual Report and Geotechnical Addendum.
• From: Tetra Tech
• To: DRMS
• Permit Index Doc Type: Annual Reclamation Report
• Email Name: TAK
• Media Type: D
• Archive: No

Very Low (6)
Low (4)
Medium (2)
High (1)
Very High (0)
<1m( <33ft)
1 - 3 m (3 3 - 9 9 ft)
3- 10m(99 -33ft)
10 -20m (33 -66 ft)
>20 m ( >66 ft)
Discontinuity Persistence
Set 1 Set 2
X
X
Set 3 Set 4 Set 5
X
Notes
Very Tight Joints (6)
Tight Joints (5)
Moderately Open Joints (4)
Open Joints (1)
Very Wide Aperture (0)
<0 1 mm (< 0 003 in)
0 1 - 0 5 mm (0 003 - 0 02 in)
05- 25mm(002 -01 in)
25- 10 mm (0 1 -04 in)
>10mm( >04in)
Discontinuity Separation (Aperture)
Set 1 Set 2
X
X
Set 3
X
X
X
Set 4 Set 5
Very Rough Surfaces (6) VR
Rough Surfaces (5) R
Slightly Rough Surfaces (3) SR
Smooth Surfaces (1) SM
Slickensided Surfaces (0) SL
Additional Notes
Discontinuity Roughness
Set 1
X
X
Set 2
X
X
Set 3
X
X
Set 4 Set 5
Notes
clay, staining, shear, etc
Type
Thickness
Estimated Compressive Strength
Seepage none, moist, dripping, etc
Discontinuity Filling (Gouge)
Set 1
Fe0
Set 2
FeO
Set 3
FeO
Set 4 Set 5
Unweathered (6) UW
Slightly Weathered (5) SW
Moderately Weathered (3) MW
Highly Weathered (1) HW
Completely Weathered (0) CW
Residual Soil (0) RS
Discontinuity Wall Face Weathering
Set 1 Set 2
X
X
Set 3
X
Set 4 Set 5
RMR Classification:
42 -69
STA 1 +48 -1 +52 - Nearly Vertical mafic dike intrusion STA
2 +40 -2 +45 - Nearly vertical pegmatitic intrusion with a horzontal offshoot at approximately 20 -foot above bench This
RMR data is only for the lower 35 -40' of the highwall exposed at this locaiton (see pictures) Highwall above this mapped
during the 2011 Annual Report
Jof 2