2014-08-19_PERMIT FILE - C1980007 ‎(4)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 8/19/2014
• Doc Name: Laboratory Test Data
• Section_Exhibit Name: Exhibit 82 Appendix B
• Media Type: D
• Archive: No

Hydraulic Conductivity Test Data
Oroject: West Elk Mine RPE Expansion - #06261003 Date: 8/17/2009
Reported To: Barr Engineering Company Job No.: 7110
Boring No.:
RPE
RPE
RPE
Sample No.:
1
2
3
Depth (ft.):
Freshly Mixed
North of
Location:
Pile
Trench Drains
E. End
Sample Type:
Bulk
Bulk
Bulk
Mixture of Coal
Mixture of Coal
Mixture of Coal
& Mineral Soil -
& Mineral Soil -
& Mineral Soil -
Clayey Gravel
Clayey Sand with
Clayey Sand with
(GC)
Gravel
Gravel
(SC)
(SC)
Soil Type:
Organic Content
37.3
36.1
36.7
LL
33.5
31.0
31.5
PL
23.3
21.5
22.2
PI
10.2
9.5
9.3
'ermeability Test
Reconstituted
Reconstituted
Reconstituted
iri Saturation %:
C:
0
a Porosity:
c
U Ht. (in):
3.00
3.00
3.00
N
Dia. (in):
2.85
2.85
2.85
a�
o Dry Density (pcf):
71.9
71.2
71.4
a�
m Water Content:
15.3%
15.1%
15.2%
Test Type:
Falling Head
Falling Head
Falling Head
Max Head (ft):
5.0
5.0
5.0
Confining press.
(Effective -psi):
2.0
2.0
2.0
Trial No.:
18-22
12-16
12-16
Water Temp °C:
20.0
20.0
20.0
% Compaction
90.6%
90.1%
90.2%
% Saturation
(After Test)
96.3%
97.1%
95.4%
Coefficient of Permeability
K @ 20 °C (cm/sec)
4.2 x 10 -6
4.8 x 10 -6
3.7 x 10 -g
@20°C(f/min)
8.3x10-6
9.5x10-6
7.2x10-6
Notes:
II' 0
OI ihTL L DTI�i!
9301 Bryant Ave. South Suite 107 2Bloomington, Minnesota 55420-3436
P ESTING.I\C.