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 B -9
Sheet 1 of 2
Project: Proposed RPE Expansion
Location: West Elk Mine, Somerset,
Client: Mountain Coal Company
CO
Barr Project Number: 06/261003
STANDARD PENETRATION
NATURAL DRY
TEST DATA
DENSITY
w
m
m
o
o6
=3 o
N in blows /ft @
(pcf) it
o
MATERIAL DESCRIPTION
0
T
> 0
10 z o 30 ao
105 its 1zs
.
C
(ASTM D2488)
0
F zo
AD
SHEAR STRENGTH, ksf
Water Content, %
w
C7
�
Qp X UC 6 TV )K
Wp WN WL
VS A VSR O
Surface Elev. 6784.1
1 2 3 a
20 40 60
0
CLAY (CL -CH) Medium brown slightly moist clay with silt, sand
and gravel. Some coarse sand and organics.
6780
5
13
p13
1
l
1
1
6775
I
1
10
19
I
I
19
6770
-15--
CLAY (CL -CH) Medium -dark brown slightly moist clay with silt 15.0
20
sand and >1" gravel.
20
1
6765
I
1
I
I
20
24
SANDSTONE Medium brown dry sandstone with siltstone. 20.0
h2
6760
25
CLAY (CL -CH) Medium brown slightly moist clay with silt, sand
50/3
and gravel. 25.0
50/
SHALE Medium brown /grey slightly moist shale with _26.0-
6 0
X X
3
Acarbonaceous stringers and orange slickensides.
x x
SILTSTONE Medium -light brown /grey dry siltstone with dark
X X
grey wavey laminations.
x x
X x
6755--
X x
x x
X x
30
----------- Con7trTuealOextPa e --- - - - - --
x x
Completion Depth: 40.0
Remarks:
Date Boring Started: 6/24/09
Date Boring Completed: 6/24/09
SAMPLE TYPES
WATER LEVELS
Logged By. BWL
Auger Cutting ,Shelby Tube
While Drilling:
Drilling Contractor: Haztech
Drilling Method: HSAORE
/C
End of Drilling:
Northing: 401190.5
Split S Rock Core
Eastin : 1450809.9
p goon
hrs After Drilling:
The stratification lines represent approbmate boundaries. The transition may be gradual.