2010-04-26_PERMIT FILE - C1980007A ‎(6)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 4/26/2010
• 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 -3
Sheet 1 of
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
c
(\
N in blows /ft @
(pco
a
t
MATERIAL DESCRIPTION L
Z
10 20 30 ao
105 115 125
is
iz
(ASTM D2488) CL
0
E ado
SHEAR STRENGTH, ksf
Water Content,
LLl
O E
Q X UC A TV )K
WP WN WL
VS & VSR O
Surface Elev.: 6366.6
1 2 3 4
20 40 60
0
SILT (ML) Medium -dark brown slightly moist silt with
fine- medium grained sand, clay and siltstone inclusions.
6365
5
20
0
6360
SANDY LEAN CLAY (CL) Dark brown slightly moist sandy lean 9.0
_10-
clay with fine to medium grained sand inclusions. Some coal and
0
siltstone fragments, trace organic material @ 10 feet.
20
6355
\
15
\
SANDSTONE Light brown slightly moist sandstone. 14.5
:-
38
38
6350
..
1
20
6345
COAL Black, slightly moist fractured and friable coal. 24.0
-25-
50/
50 /5
5
6340
J_ SUSTONE
Light grey /grey siltstone with fine sand inclusions. 29.0 X X
30
Continued Next Pace x x
Completion Depth: 100.0
Remarks:
Date Boring Started: 6/18/09
Date Boring Completed: 6/19/09
Logged By: BSE
SAMPLE TYPES WATER LEVELS
Drilling Contractor. Haztech
Auger Cutting ' Shelby Tube While Drilling:
Drilling Method: HSA/CORE
End of Drilling:
Northing: 402650.2
® Split Spoon Rock Core
Eastin 1450672.6
- hrs After Drilling: 75.28
10
0
The stratification lines represent appropmate boundaries. The transition may be gradual.