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 1 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
d
y
o
(\
N in blows /ft @
(pco
o
MATERIAL DESCRIPTION a
> 0
10 20 30 40
105 115 125
cu
a
(ASTM D2488) a
z
w p
n
d o
SHEAR STRENGTH, ksf
Water Content, %
E
u)
Q X UC TV
WP WN WL
rn
Surface Elev.: 6260.0
VS o VSR O
0
1 2 3
20 40 60
CLAY (CL -CH) Brown, sand, gravel and silt. Slightly moist.
14
q1
COAL Black, mixed coaly gravel and silt with occasional vitrain 2.5
\
clasts.
28
6
6255
5
¢
17
COAL Black, mixed coaly gravel and silt. Silt zones up to 2" thick 7.5
I
and siltstone clasts >1.5'. Moist and dry zones with wet zones
17
7
up to 3" thick.
'\
6250--10-
\
31
31
2 53
19
CC
19
6245--15-
\
33
33
I
6240
20
COAL Black, mixed coaly gravel and silt. Layers of fat clay up to 20.0
3" thick. Dry with moist zones. Wet zones up to 2" thick.
22
022
6235--25
11
11
I
1
6230--30
I
I
I
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
Drilling Method: HSA
While Drilling:
m Auger Cutting , Shelby Tube
Northing:
End of Drilling:
® Split Spoon n Rock Core
Eastin
hrs After Drilling:
10
10
10
1 1— � v i ne transition may De graauai. Kevisea marcn 19, 2010