REP12770

• Permit No: C1981041
• IBM Index Class Name: Report
• Doc Date: 4/22/1994
• Doc Name: REFUSE PILE SITE INSPECTION REPORT
• Permit Index Doc Type: STABILITY REPORT
• Media Type: D
• Archive: No

WESTERN
COLORADO
TESTING,
INC.
SOIL/AGGREGATE FIELD DENSITY TEST;;
Client: Powder River Coal Comoanv Test Locations Designated ey: WCT Job No.: 400_ 494 .
Project: CRDA J12 Powderhorn Mine Authorized By: Larrv Reschke Date: 4-22-94
Location: Cameo. Colorado Tested/Calc'd By: C. Miller Date: 4.22-94
Type of Material: Coal Refuse Reviewed By: krP Dater/3G,~9a-
Source of Material:~RDA 172 Moisture/Density Relationship: AASHTO T-180 Method: D
Test
No.
Date
Location of Test Hole Elevation
of Test
Datum
1 4-22-94 See accompanying site plan 0
2 4-22-94 See accompanying site plan 0
3 4-22-94 See accompanying site plan 0
4 4-22-94 See accompanying site plan 0
5 4-22.94 See accompanying site plan 0
6 4.22-94 See accompanying site plan 0
Test
No. Moisture
Density
Lab No. Optimum
Moisture
% Max. Dry
Density
pcf In-Place Characteristics
Moisture Dry Density
% pct Relative
Compaction
% Within
Specs
Comments'
1 11.5 98.5 10.3 90.7 92 Y 4,11,15,18,19
2 11.5 98.5 10.5 91.6 93 Y 4,11,15,18,19
3 71.5 98.5 10.4 93.1 95 Y 4,11,75,18,19
4 11.5 98.5 10.2 91.6 93 Y 4,11,15,78,19
5 11.5 98.5 11.2 90.3 92 Y 4,11,15,18,19
6 11.5 98.5 10.2 91.5 93 Y 4,11,15,18,19
'Comments
1. Subgreds
2. Suhbase Fill
3. Base Course
4. Beckfill
5. Pavement Aree
6. Below Footing Bonom
7. Above Footing Bottom
Copies to:
8. 100% min. rsq'd
9. 98% min. req'd
10. 95% min. rsq'd
11. 90% min. raq'd
12. _% min. req'd
73. Moisture req'd +l-
_% of optimum
14. Tested D•1556lAASNTO T•217 19. Teetsd Locations on Aecompenyinq Slta Plen
15, Teetsd ASTM D-29221D-3017 20. SpeelflesUona Unknown
18. Teetsd ASTM D-2922/AASHTO T-217 21. 92-98% Compaction required
17. Rock correction applied to maximum Datum Ealstine arede
dry density AASHTO T-224
18. Other Moisture eontents based on
rolling average of oven dried corrected
Note: Testa reported herein are not pen of
e continuous monitoring program of
nuclear gauge determined moistures.
t:ompection operagons end seeordingly
apply only to the aMUal location tsated.