2011-09-30_PERMIT FILE - C1980007A ‎(6)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 9/30/2011
• 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
Protect: Proposed Coal Handling
Location: West Elk Mine, Somerset,
client: Mountain Coal Company
Facilities
CO
Barr Project Number: 06/261004
STANDARD PENETRATION
NATURAL DRY
L)
TEST DATA
DENSITY
w
o
\
N in blows /ft O
(pcf)
o
t
MATERIAL DESCRIPTION
0
a
> a
10 zo so ao
105 tts tzs
CU
(ASTM D2488)
a
F
z
y
m
a o
SHEAR STRENGTH, ksf
Water Content, %
Qp
E
c/)
x UC A TV )K
Wp WN WL
Surface Elev.: 6260.0
co
VS o VSR O
0
1 2 3
20 40 60
CLAY (CL -CH) Brown, sand, gravel and silt. Slightly moist.
14
11
\
COAL Black, mixed coaly gravel and silt with occasional vitrain 2.5
clasts.
28
28
6255
5
17
¢
7
COAL Black, mixed coaly gravel and silt. Silt zones up to 2" thick 7.5
1
1
and siltstone clasts >1.5 ". Moist and dry zones with wet zones
11
0
7
up to 3" thick.
6250
10
\
\
31
31
/
2H
19
C&
9
\
6245--15-
\
33
33
/
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
n22
/
6235--25-
11
I
I
11
6230
30 --
--Continued
I
I
I
I
Next Pa 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
m Auger Cutting 'Shelby Tube
While Drilling:
Drilling Method: HSA
Northing:
®Split Spoon n Rock Core
End of Drilling:
Eastm :
hrs After Drilling:
I he stratification lines represent approximate boundaries. The transition may be gradual. Revised March 19, 2010