2009-11-08_PERMIT FILE - C1980007

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 11/8/2009
• Doc Name: Coal Preparation Plan and Associated Coal Handling Facilities
• Section_Exhibit Name: Exhibit 81
• Media Type: D
• Archive: No

Barr Engineering Company
4700 W 77th St. Suite 200 LOG OF BORING SB09-12
BARR Edina, MN 55435
Sheet 1 of 4
Project: Proposed Coal Handling Location: West Elk Mine, Somerset, Client: Mountain Coal Company
Facilities CO
Barr Project Number: 06/261004 STANDARD PENETRATION NATURAL DRY
a? TEST DATA DENSITY
o CC C \ N in blows/ft o0 (pof)
MATERIAL DESCRIPTION 0 a co
0
10 20 30 ao
100 110 120
?:'
o z
a . 1
(ASTM D2488) F
-7
> 0 a) I
L STRENGTH, ksf Water Content, %
LU E cn Op X UC A TV )K WP WN WL

0 fn
Surface Elev.: 6260.0 VS A VSR O
1 2 3 a 9
20 ao so
CLAY (CL-CH) Brown, sand, gravel and silt. Slightly moist.
2
14 R1 H

6257.5
COAL Black, mixed coaly gravel and silt with occasional 2.5
vitrain clasts.
28 \
8
/
6255 5

17 (oi 7
______ __________________ 6252.5
COAL Black, mixed coaly gravel and silt. Silt zones up to 2" 7.5
thick and siltstone clasts >15'. Moist and dry zones with wet 17 0 7
zones up to 3" thick.
6250- -10-

31
31

19 f
\
6
245
15 \

33 0 33

6240 20 -- ----- - -- -- 6240.0 /
COAL Black, mixed coaly gravel and silt. Layers of fat clay 20.0
"
"
?
up to 3
thick. Dry with moist zones. Wet zones up to 2 22 22
thick. IJ

6235- -25-

1
I
I
6230

0

230.0 I
I
I
on inue e a e
Completion Depth: 82.0 Remarks:
Date Boring Started: 6/29/09
Date Boring Completed: 6/29/09
Logged By: BWL SAMPLE TYPES WATER LEVELS
Drilling Contractor: Haztech
Drillin
Method
HSA Auger Cutting , Shelby Tube While Drilling:
g
:
® Split Spoon n Rock Core End of Drilling:
hrs After Drilling:
i he stratitication Imes represent approximate boundaries. The transition may be gradual.