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-3
� Sheet 4 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
y
TEST DATA
DENSITY
ry
rn
o
co 2._1
N in blows/ft OO
(pcf) i1c
o
z
MATERIAL DESCRIPTION
T > 0U,
10 20 30 40
105 115 125
is
a
(ASTM D2488)
t
CL
Wo
>
a)
2
a o
SHEAR STRENGTH, ksf
Water Content, /o
W
C7
U)
Q, X UC A TV )K
WP WN WL
U)
VS A VSR O
1 2 3 4
20 40 60
90
SANDSTONE Dark brown -black, some light grey/grey sandstone 90.0
with shale and coal seams.
6275-
81%
5
_95-
6270
6270-
74%
74%
100
100.0
105
110
I
115
I
120
Completion Depth: 100.0
Remarks:
Date Boring Started: 6/18/09
Date Boring Completed: 6/19/09
SAMPLE TYPES
WATER LEVELS
! Logged By: BSE
m Auger Cutting ' Shelby Tube
While Drilling:
Drilling Contractor: Haztech
Drilling Method: HSA/CORE
End of Drilling:
' Northing: 402650.2
Split Spoon Rock Core
®
Eastin : 1450672.6
- hrs After Drilling: 75.28
The stratification lines represent appro)amate boundaries. The transition may be gradual.