2014-08-19_PERMIT FILE - C1980007 ‎(3)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 8/19/2014
• Doc Name: Boring Logs
• Section_Exhibit Name: Exhibit 82 Appendix A
• Media Type: D
• Archive: No

Barr Engineering Company
4700 West 77th Street
BARR Minneapolis, MN 55435-4803 LOG OF BORING B-1
� Sheet 1 of 3
Project: Proposed RPE Expansion
Location: West Elk Mine, Somerset,
Client: Mountain Coal Company
CO
Barr Project Number: 06/261003
STANDARD PENETRATION
NATURAL DRY
y
TEST DATA
DENSITY
o
o
N in blows/ft o0
(PO is
t
MATERIAL DESCRIPTION
t T
z
10 20 30 ao
los 115 125
i
(ASTM D2488)
aF
w
``
X
(L
SHEAR STRENGTH, ksf
Water Content, %
W
a
Qv UC A TV )K
W,WN WL
U)
VS 0 VSR O
Surface Elev.: 6192.2
1 2 3 4
20 40 60
0
CLAY (CL -CH) Light -dark grey slightly moist clay with sand,
gravel and roots. Black carbonaceous zones.
6190-
5
16
41
185
6185--
I
brown moist clay with silt, sand 10.0
brown
19
and sandstone/granite gravel.
19
I
6180--
180
-15-
15WELL
WELLGRADED SAND (SW) Brownish -red slightly moist sand
10
010
with dark grey lenses. 15.7
LEAN CLAY (CL) Medium brown/grey slightly moist lean clay
6175
with red and orange clay inclusions.
20
50/
SILTY SAND WITH GRAVEL (SM) Light brown very fine 20.0
''
grained slightly mast silty sand with red sandstone gravel.
1
SANDSTONE Red and tan/grey sandstone. 21.5
6170
39%
-25-
5
6165
6165--
::
24%
i
30
Continued Next Pa e
Completion Depth: 75.0
Remarks:
Date Boring Started: 6/25/09
Date Boring Completed: 6/25/09
SAMPLE TYPES
WATER LEVELS
! Logged By: BWL
m Auger Cutting ' Shelby Tube
While Drilling:
Drilling Contractor: Haztech
'
Drilling Method: HSA/CORE
End of Drilling:
Northing: 403263.5®
Split Spoon Rock Core
DRY
Eastin : 1450468.5
hrs After Drilling:
g :
The stratification lines represent approbmate boundaries. The transition may be gradual.