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 i
4700 West 77th Street
BARK Minneapolis, MN 55435-4803 LOG OF BORING B-4
Sheet 1 of Y
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
o
�
(D-*,
N in blows/ft OO
(pcf)
o
L
MATERIAL DESCRIPTION
t
T
z
10 20 30 40
105 115 125
is
a
(ASTM D2488)
a
1--
>
2
d
a o
SHEAR STRENGTH, ksf
Water Content, %
W
E
U)
Qp X UC A TV )K
Wp WN WIL
cc
VS o vsR O
Surface Elev.: 6386.9
1 2 3 4
20 40 60
0
CLAY (CL -CH) Brown slightly moist clay with silt, sand and
gravel. Minor brawn/black coal seaming and sandstone
fragments.
6385
5
24
P2
380
6380--
-10-
1013
13
13
6375--
375
-15-
1515
15
01
6370
20
50/>,q'50/1
CLAYEY SAND (SC) Brown slightly moist clayey sand with silt. 20.0
1
3655
6365--
5-
50/
SANDSTONE Tan to medium brown sandstone mottled with 25.0
SANDSTONE
..
50/1
f
coal dust seams.
»
6360
— --- --- -- -- —
SANDSTONE Medium brown sandstone with minor day and 27.0
;
coal dust seams.
82%
30
Continued Next Pa e
Completion Depth: 35.0
Remarks:
Date Boring Started: 6/22/09
Date Boring Completed: 6/22/09
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: 402656.1
® Split Spoon a Rock Core
Eastin : 1450507.7
hrs After Drilling: DRY
The stratification lines represent approbmate boundaries. The transition may be gradual.