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 -10
Sheet 1 of 2
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
m
y
o Ix
I
N in blows/ft
(pcf) it
o
MATERIAL DESCRIPTION i;
> 0
10 20 30 40
105 115 125
16
a
(ASTM D2488) a
Z
m
O
`�
a `
SHEAR STRENGTH, ksf
Water Content, %
w
CL
O E
V)
O. X UC A TV )K
W W, W
U)
Surface Elev.: 6260.0
VS o VSR O
0
1 2 3 4
20 40 60
SANDY SILT WITH GRAVEL (ML) Medium -light grey. Dry.
47
P
COAL Black, dry coal clasts with dust. 1.0
35
-----------------------------
6255
5
COAL Black, dry coal clasts with some carbonaceous mudstone 4.5
and siltstone. Slightly moist.
66
66
GRAVEL (GW) Black coal clasts with siltstone gravel. slightly 7.0
moist. • �'
19
!r
• '�
6250--10-
19
• �
I
COAL Black, coal clasts and coal dust with siltstone clasts. 12.5
Slightly moist.
7
1
6245--15
24
p2
6240--20-
4
�4
I
1
6235--25-
1
1
1
1
10
10
FAT CLAY (CH) Dark grey-black clay with coal clasts and coal 27.0
dust, gravel. Moist.
I
6230--30-
I
C ontinued e a e
Completion Depth: 30.0
Remarks:
Date Boring Started: 6/30/09
Date Boring Completed: 6/30/09
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:
0
10
i ne siratiricauon unes represent appro)amate bounaaries. 1 ne transition may oe graauai. Revised March 19, 2010