2014-08-19_PERMIT FILE - C1980007 ‎(3)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 8/19/2014
• Doc Name: Boring Logs
• Section_Exhibit Name: Exhibit 82 Appendix A
• Media Type: D
• Archive: No

Barr Engineering Company
4700 West 77th Street
B)MR Minneapolis, MN 55435-4803 LOG OF BORING B-3
Sheet 2 of 4
Project: Proposed RPE Expansion
Location: West Elk Mine, Somerset,
Client: Mountain Coal Company
CO
Barr Project Number: 06/261003
STANDARD PENETRATION
NATURAL DRY
aa)
TEST DATA
DENSITY
w
o
W
a o
N in blows/ft O
(pco
L
MATERIAL DESCRIPTION
r
T
Z
10 20 3o ao
106 115 125
o
(ASTM D2488)
Q
F-
>
>
ami
a $
SHEAR STRENGTH, ksf
Water Content, %
S?
CL
V)
QP X UC A TV X
WP WN WL
in
VS A VSR O
1 2 3 4
20 40 60
30
SILTSTONE Light grey/grey siltstone with fine sand inclusions.
»
X X
50/
50/3
xx
6335
X
X
3
Xx
X x
X x
X x
X x
X x
X x
35
X x
X x
X
X
50/
>>(,:,50/4
X x
4
6330
x x
x x
X x
X x
X x
X x
X x
50/
>>q,50/1
SANDSTONE Grey sandstone with minor coal dust. Minor 39•0
:::
40
layers of siltstone. Some clay infilling. Minor pyrite present in
......
small dykes.
6325
;;;
94%
-45-
6320—
::
7.5%
0
-50-
6315-
6315
::
7.50/
100%
a55
Z 6310
93%
60
Continued Next Pa e
Completion Depth: 100.0
Remarks:
Date Boring Started: 6/18/09
Date Boring Completed: 6/19/09
SAMPLE TYPES
WATER LEVELS
Logged By. BSE
Auger Cutting ' Shelby Tube
While Drilling:
Drilling Contractor: Haztech
° Drilling Method: HSA/CORE
End of Drilling:
: 402650.2
Northing:
Split Spoon Rock Core
® p
7- hrs After Drilling: 75.28
Eastin : 1450672.6
The stratification lines represent appro)amate boundaries. The transition may be gradual.