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. WESTERN <br />~ COLORADO <br />TESTING, <br />INC. <br />nt: Powderhom Coal Comoan <br />Project: CRDA 1t2 Coal Pile Compactions <br /> <br />Location: Cameo. Colorado <br /> <br />Type of Material: Coal Refuse <br /> <br />Source of Material: CRDA Site lt2 <br />SOIL/AGGREGATE FIELD DENSITY TESL <br />Test Locations Designated By: WCT Job No.: 7004921 <br />Authorized By: Client Date: 5115/92 <br />Tested/Catc'd By: D. Fife Date: 5115/92 <br />Reviewed By: SF Date: m <br />Moisture/Density Relationship: ASTM T180Method: C <br />Test <br />No. <br />Date <br />Location of Test Hole Elevation <br />of Test <br />Datum <br />1 5/15/92 See site plan attached 0 <br />2 5/15192 See site plan attached 0 <br />3 5115192 See site plan attached 0 <br />4 5!15192 See ske plan attached 0 <br />5 5!15/92 See site plan attached 0 <br />6 5115/92 See site plan attached 0 <br />Test <br />lo. Moisture <br />Density <br />Lab No. Optimum <br />Moisture <br />% Max. Dry <br />Density <br />Dcf fn-Place Characteristics <br />Moisture Dry Density <br />% pcf Relative <br />Compaction <br />% Within <br />Specs <br />Comments' <br />1 1 12.2 88.5 10.0 92.1 100 + V 4,11,15,18 <br />2 1 12.2 88.5 10.3 90.5 100+ Y 4,11,15,18 <br />3 1 12.2 88.5 11.0 87.0 98 Y 4,11,15,18 <br />4 1 12.2 88.5 9.7 104.2 100 + Y 4,11,15,18 <br />5 1 12.2 88.5 9.7 92.0 100+ Y 4,11,15.18 <br />l 6 i 12.2 88.5 10.1 89.7 700+ Y 4,11,15,18 <br />•Commenb <br />1. subprede a. 1D0% min. raq'd 14 . Tssted D~1556/AASMTO T-217 19. Taatad Locations on Accompanying Sita Plen <br />2. Subbase Fill 9. 99% min, req'd 15 . Tested ASTM D~2922/D•3017 20. Spsciricstions Unknown <br />7. Bass Course 10. 95% min. req'd 16. Tested ASTM D-2922/AASHTO T-2t 7 <br />4..Backlill 11, 90% min. rsq'd 17. Roo correction appl'nd to maximum Datum Existing Breda <br />5. Pere mant Area 72. _% min. req'd dry density AA51fT0 T-224 <br />6. Below Footing bottom 1]. Maature nQ d +l- 18. Other Nob; Testa bponsd Mrein w noI pan o1 <br />7. Above Footing Bottom _% of optimum • eoniinuow monitoring program el <br />Capras to: <br />Larry Resctike <br />Hector Apodaca <br />compsction operations and accordingly <br />apply Wy to iM srtual location babd. <br />` Moisture contents based on rolling average of oven dried correctel~ <br />nuclear gauge._determined moistures. ~ __ -_ <br />