2010-04-26_PERMIT FILE - C1980007A ‎(6)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 4/26/2010
• Doc Name: Boring Logs
• Section_Exhibit Name: Exhibit 82 Appendix A
• Media Type: D
• Archive: Yes

Barr Engineering Company
4700 West 77th Street
BARR Minneapolis, MN 55435 -4803 LOG OF BORING SB09 -12
Sheet 3 of 4
Project: Proposed Coal Handling
Location: West Elk Mine, Somerset,
I
Client: Mountain Coal Company
Facilities
CO
Barr Project Number: 06/261004
STANDARD PENETRATION
NATURAL DRY
iu
TEST DATA
DENSITY
w
o
(\
N in blows /ft @
(pcf is
o
t
MATERIAL DESCRIPTION
0
i
> 0
10 zo so ao
105 115 125
a
(ASTM D2488)
a
Z z
SHEAR STRENGTH, ksf
Water Content, %
w
G7
E
V)
Qp X UC A TV
WP WN WL
M
VS o VSR O
60
1 2 3 4
20 40 60
LEAN CLAY (CL) Dark grey -black clay with coal, mudstone and 60.0
siltstone fragments. Some sandstone fragments. Slightly moist.
37
37
Water added.
/
6195--65
18
¢
I
I
8
6190--70
I
1
I
13
T 13
T
I
6185--75
I
I
I
I
14
1
1
1
1
1
1
6180--80
22
�22
6175
85
SANDSTONE Light brown, broken sandstone with some clay.
CLAY (CL -CH) Medium brown clay with sand, silt and gravel. 85.5
56
56
Slightly moist.
61704
90
c ontinued e Pace
Completion Depth: 92.0
Remarks:
Date Boring Started: 6/29/09
Date Boring Completed: 6/29/09
Logged By. BWL
SAMPLE TYPES WATER LEVELS
Drilling Contractor: Haztech
While Drilling:
m Auger Cutting 'Shelby Tube
Drilling Method: HSA
Northing:
Split Spoon End of Drilling:
® n Rock Core
Eastin
hrs After Drilling:
0
1b
10
I he strataication lines represent appro)amate boundaries. The transition may be gradual. Revis March 19, 2010