2009-04-17_HYDROLOGY - C1980007

• Permit No: C1980007
• IBM Index Class Name: HYDROLOGY
• Doc Date: 4/17/2009
• Doc Name: 1st Quarter 2009 Pond/Site Inspection Report
• From: Mountain Coal Company
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspect
• Email Name: TAK
• Media Type: D
• Archive: No

RELATIVE COMPACTION TEST RESULTS
PROJECT: West Elk Refuse Pile Expansion
SITE LOCATION: Somerset
PROJECT NO: M09011MT
ENGINEERING TECHNICIAN: Hayes
DATE: Thursday, Mar/12/09
Page I of 2
CLIENT: Mountain Coal Company
NUCLEAR GAUGE USED: 18
Laboratory # 1409

TEST
NO

TEST LOCATION
DEPTH OR
ELEVATION
PROBE
DEPTH
(IN) LABORATORY
1111OCTOR
DENSITY
(PCF) OPTIMUM
MOISTURE
CONTENT
(%)
DRY
DENSITY
(PCF)
MOISTURE
CONTENT
(%)
RELATIVE
COMPACTION
(%
SOIL TYPE
53 RPE-01 6186.50 ___
8 --
103.0 --
--
11.5 109.0 --
--
6.0 100 Coal Gob, Black
54 RPE-02 6182.86 8 103.0 11.5 101.1 11.9 98 " "
55 RPE-03 6182.22 8 103.0 11.5 100.3 12.1 97 " "
56 RPE-04 6177.80 8 103.0 11.5 102.9 12.9 100 "
57 RPE-05 6172.48 8 103.0 11.5 104.9 10.9 100 "
58 RPE-06 6167.58 8 103.0 11.5 100.7 11.8 98 "
59 RPE-07 6170.54 8 103.0 11.5 101.2 8.7 98 "
60 RPE-08 6171.26 8 103.0 11.5 100.8 11.5 98 "
61 RPE-09 6164.90 8 103.0 11.5 98.6 9.4 96 "
62 RPE-10 6168.65 8 103.0 11.5 102.0 9.5 99 "
REMARKS: The test results indicate only the density and moisture content for the location and elevation tested only.
40-
7/
n&Lmt arta:1VO PROJECT NUMBER: M09011MT