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 -11
Sheet 1 of 2
Project: Proposed Coal Handling
Location: West Elk Mine, Somerset,
Client: Mountain Coal Company
Facilities
CO
Barr Project Number: 06/261004
STANDARD PENETRATION
NATURAL DRY
TEST DATA
DENSITY
w
rn
N in blows /ft O
(pcf) it
w
MATERIAL DESCRIPTION
0 a
> 0
10 zo 30 ao
105 115 125
c
(ASTM D2488)
n
C
Z °
d
a
m
a c
SHEAR STRENGTH, ksf
Water Content, %
W
CL
E
(0
Qp x UC. A TV X
Wp WN WL
`aai
VS & VSR O
Surface Elev.: 6260.0
1 2 3 4
20 40 60
0
FAT CLAY (CH) Dark brown -black clay with coal clasts
50
50
i
i
COAL Broken coal and silt/sand size coal dust. Slightly moist, 2.5
mostly dull with some bright coal. Some dry zones. Siltstone
23
op�3
fragments.
T
I
6255
5
19
19
12
(k12
6250
10
\
FAT CLAY (CH) Black -grey clay with coal dust and clasts. Very
moist. 10.5
242
COAL Coal dust and clasts with fragments of sdtstone and
s_andstone._Dry to slightly moist.
—I _ _ _ _ _ —m _ _
COAL Mixed coal gravel, clasts and dust with rock fragents 12.5
and clay seams. Slightly moist and dry zones.
21
21
6245--15-
I
11 2
24
/
/
/
6240--20-
13
�13
FAT CLAY (CH) Clay with some gravel, sand and silt. 20.5
COAL Broken coal with some fragments of siltstone and 21.5
mudstone. Mostly dry with small wet zones.
I
I
6235--25-
I
l
I
151
------------------- - - - - -- -270
\
62304
30
Continued Next Page
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
m Auger Cutting ,Shelby Tube
While Drilling-
Drilling Method: HSA
Northing:
® Split Spoon Rock Core
End of Drilling:
Eastin :
hrs After Drilling:
the stratification lines represent appro )dmate boundaries. The transition may be gradual. Revised March 19, 2010