REP39242

• Permit No: C1981041
• IBM Index Class Name: Report
• Doc Date: 10/3/2001
• Doc Name: POWDERHORN COAL CO CDPS PERMIT DMRS POND AND REFUSE PILE INSPCETION REPORTS PN C-81-041
• From: J E STOVER & ASSOCIATES
• To: DMG
• Permit Index Doc Type: STABILITY REPORT
• Media Type: D
• Archive: No

< .
.~
WESTERN
COLORADO
TESTING,
INC.
SOILIAGGREiGATE FIELD DENSITY TESTS
Client Powderhom Coal Company Test Locations Designated By: WCT Job No.: 304301
Project #2 Refuse Pile Authorized By: Client Date: 95-01
Location #2 Refuse Pile TestedlCalc'd By: L Sanchez Date: 95-01
Type of Material: Coal Reviewed By: ~%n Date: ~~~.1 (OI
Source of Material Native Moisture/Density Relationship: AsTM99e Method: C
Test
No.
Date
Location of Test Hole Elevation
of Test
Datum
1 95-01 Northwest End 0
2 95-01 Northeast End 0
3 95-01 Middle East End 0
4 95-01 Middle West End 0
5 95-01 Southeast End 0
6 95-01 Southwest End 0
Test
No. Moisture
Density
Lab No. Optimum
Moisture Max. Dry
Density
pct InJ'lace Characteristics
Moisture Dry Density
% pcf Relative
Compaction
°/, Within
Specs
Comments'
1 1 9.0 99.7 9.2 97.6 98 Y 10,15
2 1 9.0 99.7 12.0 95.0 95 Y 10,15
3 1 9.0 99.7 9.9 96.3 96 Y 10,15
4 1 9.0 99.7 8.8 96.0 96 Y 10,15
5 1 9.0 99.7 11.5 100.2 100 Y 10,15
6 1 9.0 99.7 10.8 100.8 100+ Y 10,15
° Conrnents:
1. Subgrade 6, 100% min. req'd
2. Subbase Fill
9. 98% min. req'd
]. Base Course
4. Baekfill 10.96% min. req'd
6. Pavement Area 11. 90X min. req'd
6. Below Footing 12. _% Tin. req'd
7. Above Footing Bottom 1]. Moisture req'd +f-
% of optimum
Copies to:
14. Tested D-1656IAASHTO T-217 19. Tested Locations on Accompanying Sile Plan
16. Tested ASTM D-2922/DJ017 20. Specifications Unknown
16. Tested ASTM D-2922IAASHTO
T-217 21. 9296% Compaction required
17. Rock correctbn applied to Datum: Too of oile.
mazimum dry density AASHTO Note: Tests reported to herein are not paA of a
Td24 contlnuous monitoring program of
corrpaction operaitons and xeadingty
1B. Other: apply onty to the actual location tested.
Mab:jobs13043C0905