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WESTERN <br />COLORADO <br />TESTING, <br />INC. <br />Client: Powderhom Coal Company <br />Project: Powderhom Coal <br />Location: Cameo, Colorado <br />SOILJAGGREGATE FIELD DENSITY TESTS <br />Test Locations Designated By: WCT Job No.: 301000 <br />Authorized ey: Tanya Date: 2-28-00 <br />Tested/Calc'd By: L. Sanchez Date: 2-28-00 <br />Type of Material: Sand with sift and gravel Reviewed By: I.J~S <br />Source of Material: Native Moisture/Dens' Relationshi ASTM - <br />~ p' 1557 <br />Date: 3 ~ ~~ <br />Method: C <br />Test <br />No. <br />Date <br />Location of Test Hole Elevation <br />of Test <br />Datum <br />1 2-28-00 At centerline of berm and 64' east of the west end 0 II <br />2 2-28-00 At centerline of bens and 8T east of the west end 0 II <br />3 2-28-00 At centerline of bens and 36' east of the west end 0 II <br />4 2-28-00 At centerline of bens and 23' east of the west end ~t• 4.r <br />5 2-28-00 At centerline of berm and 48' east of the west end +4' II <br />6 2-28-00 At centerline of bens and 86' east of the west end +4' <br />Test <br />No. Moisture <br />Density <br />Lab No. Optimum <br />Moisture Max. Dry <br />Density <br />pcf In~lace Characteristics <br />Moisture Dry Density <br />% pct Relative <br />Compaction Within <br />Specs <br />Comments' <br />1 0 9.1 127.2 10.6 119.8 94 Y 1,11,15 II <br />2 0 9.1 127.2 10.4 116.5 92 Y 1,11,15 N <br />3 0 9.1 127.2 9.7 115.1 91 Y 1,11,15 <br />4 0 9.1 127.2 9.3 115.6 91 Y 1,11,15 <br />5 0 9.1 127.2 9.2 115.8 91 Y 1,11,15 <br />6 0 9.1 127.2 10.1 114.0 90 Y 1,11,15 <br />'comments: <br />1. Subgrade <br />2. Subbase Fill <br />3. Base Course <br />1. Backfill <br />5. Pavement Area <br />6. Below Footing <br />7. Above Footing Bottom <br />Copies to: <br />8. 100% min. req'd <br />9. 98% min. req'd <br />10. 95% min. req'd <br />11. 90% min. req'd <br />12. _% min. req'd <br />13. Moisture req'd ./- <br />% of optimum <br />14. Tested D-1666IAASHTO T-217 <br />15. Tested ASTM D-2922/DJ017 <br />16. Tested ASTM D-2922IAASHTO <br />T-217 <br />17. Rock correction applied to <br />maximum dry density AASHTO <br />T-224 <br />16.Other: <br />19. Tested Locriions on Accompanying Site Plan <br />20. Specifkatlons Unknown <br />21. 9256% Compaction required <br />Datum: Sulwrade elevriion <br />Note: Tests reported to herein are not part of a <br />continuous monitoring program of <br />compaction operations and accordingty <br />apply only to the actual location tested. <br />Msb:jobs19010r0228 <br />