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
BARR Minneapolis, MN 55435-4803 LOG OF BORING B-1
� Sheet 2 of $
Project: Proposed RPE Expansion
Location: West Elk Mine, Somerset,
Client: Mountain Coal Company
CO
Barr Project Number: 06/261003
STANDARD PENETRATION
NATURAL DRY
iu
TEST DATA
DENSITY
d
w
o
\
N in blows/ft o0
(pcf) it
o
w(D
MATERIAL DESCRIPTION
>
10 20 30 40
105 115 125
in
a
(ASTM D2488)
L
CL
� z
>
Q
2 n~. o
SHEAR STRENGTH, ksf
Water Content, %
LLI
E U)
OP X UC A TV )K
WP WN W�
U)
VS A VSR O
1 2 3 4
20 40 60
30
SANDSTONE Red and tan/grey sandstone.
6160
: ;
59%
SILTSTONE Medium -dark red and brown siltstone and altered 34.0
x X
35
shale.
x x
X X
X X
X x
X x
6155
X x
x X
X X
O%
X X
X X
X X
X X
40
X X
X X
x x
X X
X x
X x
X x
6150
X x
x x
x X
0%
X x
X x
X x
X x
X x
45
X x
X X
X x
X x
X x
X x
6145
X x
X X
0%
X X
X x
X x
X x
X x
50
X x
X x
X x
X x
X x
6140
X x
X X
X
X X
$
8%X
X x
X X
X X
X x
55
X X
X x
I
X x
X x
X x
X x
6135
X X
X X
7%
x x
�
X x
xx
X
Xx
60
Continued NextPage
Completion Depth: 75.0
Remarks:
Date Boring Started: 6/25/09
Date Boring Completed: 6/25/09
SAMPLE TYPES
WATER LEVELS
Logged By: BWL
m Auger Cutting ' Shelby Tube
While Drilling:
Drilling Contractor: Haztech
Drilling Method: HSA/CORE
End of Drilling:
Northing: 403263.5
® Split Spoon � Rock Core
Eastin : 1450468.5
hrs After Drilling: DR
The stratification lines represent approbmate boundaries. The transition may be gradual.