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 1 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
TEST DATA
DENSITY
o
\
N in blows/ft @
(pcf)
w_j
MATERIAL DESCRIPTION
a)
>
10 20 30 40
105 115 125
m
a
(ASTM D2488)
r
T
z
u'>
p
a
o~. o
SHEAR STRENGTH, ksf
Water Content, %
LuO
E
cn
Qp X UC A TV )IE
WP WN
U)
VS A VSR O
Surface Elev.: 6366.6
1 2 3 4
20 40 60
0
SILT (ML) Medium -dark brown slightly moist silt with
fine -medium grained sand, clay and siltstone inclusions.
6365
I
I
I
5
I
20
20
i
6360
SANDY LEAN CLAY (CL) Dark brown slightly mast sandy lean 9.0
10
day with fine to medium grained sand inclusions. Some coal and
20
siltstone fragments, trace organic material @ 10 feet.
20
6355
\
\
r
15
\
SANDSTONE Light brown slightly moist sandstone. 14.5
::
:.:
38
8
6350
:
20
6345
COAL Black, slightly moist fractured and friable coal. 24.0
25
50/
>q,50/5
5
6340
t
- -
SILTSTONE Light grey/grey siltstone with fine sand inclusions. 29.0
x x
30
Continued Next Pae
x x
1
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
Eastin : 1450672.6
Spoon Rock Core
2 hrs After Drilling: 75.28
The stratification lines represent approbmate boundaries. The transition may be gradual.