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

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Barr Engineering Company
4700 West 77th Street
BARR Minneapolis, MN 55435 -4803 LOG OF BORING SB09 -12
Sheet 2 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
TEST DATA
DENSITY
w
o
o
N in blowsfft @
(pcf) is
i
t
MATERIAL DESCRIPTION
o
a > ❑
10 20 30 40
105 115 1
@
c
(ASTM D2488)
a
� Z
>
O
2 d $
SHEAR STRENGTH, ksf
Water Content, %
w
O
E CO
Q X UC & TV )K
WP WN WL
�
VS A VSR O
1 2 J 4
20 40 60
30
LEAN CLAY (CL) Dark grey -black clay with siltstone and coal 30.0
clasts. Some mudstone gravel. Moist.
11
11
I
I
6225--35
I
I
I
I
I
15
I
1
4
6220--40
23
T p23
I
1
1
6215--45-
1
16
i1
I
I
6210--50-
I
I
I
I
19
19
6205--55-
WELL GRADED GRAVEL (GW) Siltstone gravel >1.5" with 55.0
some clay and coal fragments. Dry - slightly moist.
• �•
32
0 32
4
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•
I
I
6200
60
Co ntinued e a e
Completion Depth: 92.0
Remarks:
Date Boring Started: 6/29/09
Date Boring Completed: 6/29/09
SAMPLE TYPES
WATER LEVELS
Logged By. BWL
Drilling Contractor: Haztech
Drilling Method: HSA
m Auger Cutting 'Shelby Tube
While Drilling:
Northing:
®Split Spoon n Rock Core
End of Drilling:
Eastin :
hrs After Drilling:
r ne sirauncauon ones represent appro)amate Dounaanes. i ne transition may De graaual. Kevlsecl March 19, 2010