2009-04-13_REVISION - C1980007 ‎(3)‎

• Permit No: C1980007
• IBM Index Class Name: REVISION
• Doc Date: 4/13/2009
• Doc Name: Letter & Attachments Regarding Results of Several Geotechnical Analyses
• From: Mountain Coal Company
• To: DRMS
• Type & Sequence: MR350
• Email Name: TAK
• Media Type: D
• Archive: No

RELATIVE COMPACTION TEST RESULTS
PROJECT: West Elk Refuse Pile Expansion
PROJECT NO: M09011MT
DATE: Friday, Feb/20/09
SITE LOCATION: Somerset
CLIENT: Mountain Coal Company
ENGINEERING TECHNICIAN: Hayes
NUCLEAR GAUGE USED: 18

TEST
NO

TEST LOCATION
DEPTH OR
ELEVATION
PROBE
DEPTH
IN LABORATORY
PROCTOR
DENSITY
PCF OPTIMUM
MOISTURE
CONTENT
%
DRY
DENSITY
PCF
MOISTURE
CONTENT
RELATIVE
COMPACTION
SOIL TYPE
16 Retest of #15, Feb/9/09 6148.11 8 103.0 11.5 101.2 12.5 98 Coal Gob, Black
17 Retest of #8, Feb/5/09 6163.52 8 106.0 10.0 97.7 13.3 92 44
"
18 Retest of #9, Feb/5/09 6166.31 8 106.0 10.0 97.1 10.2 92 46
"
19 At RPE-05, Feb/18/09, stake 6158.89 8 106.0 10.0 99.0 13.8 93 44
"
#21
20 At RPE-03, Feb/20/09, stake 6163.94 8 106.0 10.0 98.1 9.8 93 44
"
#23
21 At RPE-04, Feb/20/09, stake 6165.77 8 106.0 10.0 99.4 8.7 94 "
#24
22 At RPE-05, Feb/20/09, stake 6166.07 8 106.0 10.0 98.6 11.0 93 "
#25
REMARKS: The test results indicate only the density and moisture content for the location and elevation tested only.
,'?? •
',& de 021 PROJECT NUMBER: M09011MT