2010-12-17_REVISION - C1981019 ‎(94)‎

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 12/17/2010
• Doc Name: Exhibit 23 Item 1 Geotechnical Report -Collom Temporary Spoil Pile & Pond
• Type & Sequence: PR3
• Media Type: D
• Archive: No

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u
C
Total Depth: 45 ft. Northing: 360.314 ft. Drilling Method: Solid Auger Hole Diam.: 8.5 in.
Top Elevation: 6736.0 ft. Easting: 1.335,454 ft. Drilling Company: Ager Drilling Rod Diam.: A ROD
Vert. Datum: Station: Drill Rig Equipment: CME 55/Morooka Gas Hammer Type: Cathead
Horiz. Datum: Offset: Other Comments:
SOIL DESCRIPTION
Refer to the report text for a proper understanding of the
subsurface materials and drilling methods. The stratification lines
indicated below represent the approximate boundaries between
material types, and the transition may be gradual.
o
a
a E E
4) r j U
P cm o.
C0
PENETRATION RESISTANCE (blows/foot)
♦ Hammer Wt. & Drop: 140 lbs / 30 inches
0 20 40 60
Very stiff, brown, slightly sandy, silty CLAY;
'_r- ^'r-
moist; scattered organics; (Alluvium /Colluvium)
'`
CL.
H
5
S -1 Hand Penetrometer = 4.5+ TSF.
7 . 0
sN
10
_�_F_ - _ F.;. }_
..._. .
_.__._._
.F'
Medium dense, red - brown, slightly silty, clayey
SAND; moist; (Alluvium /Colluvium) SC.
12'0
.L.L.I..L -L_L - . .
' - .......
.L. L.L.L.L.L.G_4_4_
. • -
- G- } -�.}.. ..
Stiff to very stiff, slightly sandy, silty CLAY; moist;
(Alluvium /Colluvium) CL.
3H
16.0
15
Y
m
r ^ ' . ' ' -'
... '-
-
Soft to medium stiff, brown, slightly sandy to
sandy, silty CLAY; wet; occasional sand seams;
(Alluvium /Colluvium) CL.
4
o
20
o
"
Pocket Penetrometer = 0.3 to 0.5 TSF.
e
s
25
7"
30
s
35
4
.444444444.-
37.0
Medium dense, red and brown, silty, sandy,
clayey GRAVEL; wet; (Alluvium /Colluvium) GC.
40
45.0 sH
45
BOTTOM OF BORING
COMPLETED ON 6/10/2009
50
}- 44-
} -} -} -}
4444444_p _ p_
.........
.........................
ji._i._j..F..F-
.........
}- }- i• -F - . . .
.........
0 20 40
LEGEND
* Sample Not Recovered $ Ground Water Level ATD O % Fines (<0.075mm)
H Modified California Sampler • % Water Content
3" O.D. Thin - Walled Tube Plastic Limit [---" Liquid Limit
Natural Water Content
Collom Temporary Spoil Fill
KCCC - Colowyo Mine
TES
1. Refer to Figures A -1 and A -2 for explanation of symbols, codes, abbreviations and
definitions.
2. The stratification lines represent the approximate boundaries between soil types, LOG OF BORING C -103
and the transition may be gradual.
3. The discussion in the text of this report is necessary for a proper understanding of
the nature of the subsurface materials. July 2009 23 -1- 01101 -400
4. Groundwater level, if indicated above, is for the date specified and may vary.
5. USCS designation is based on visual- manual classification and selected lab r it!schnical ANNON & WILSON, INC. FIG. A -5
testing. and Environmental Consultants
Exh. 23 -1 -46 Revision Date: 08/05/09
Revision No.: PR -03