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y Sample Origin 2 West, GOB Pile <br />Material Description Coal Waste <br />Soil Type Coal Waste <br />130 <br />120 <br />110 <br />., 1oa <br />a= <br />U <br />a <br />v <br />sr <br />rq <br />Z <br />W <br />CY <br />~ Bi <br />7 <br />8 <br /> <br />Test By DRS <br />Test Date 9-14-06 <br />Sample # 7 <br />ieve <br />TEST RESULTS Size <br />MAXIMUM DENSITY: 67.1 pcf <br />- OPTIMUM MOISTURE: 16.8°h 5'~ <br />4" <br />--- - - ROCK CORRECTION: <br />MAXIMUM DENSITY: Z„ <br />OPTIMUM MOISTURE: 1 r/z <br />TEST METHOD: ASTM D-698 A 1,~ <br />PREP. METHOD: MOIST 3/4" <br />_ _ _ _ _ HAMMER: MANUAL 1/2° <br />FRACTION USED: x14 3/g" <br />_ I _ MOLD SIZE: 4"diameter 4 <br />10 <br />Speck Graviy: 20 <br />~~ ~ - -~ Liquid Lim R: 40 <br />_ __ Plastic Limn: 100 <br />,, -....- - . ~ _...' ... _..-- ; - .. J _ PlasRicily Index: <br />200 <br />0.02 <br />'.. ~ ._ 0.005 <br /> <br />Percent <br />assin <br />100 <br />98 <br />57 <br />32 <br />20 <br />9 <br />4.5 <br />Ids . _' <br />~~ <br /> <br />- L.__ __.._.. <br />L .._--~--~~---- <br />0 5 10 15 20 <br />MOISTURE - % of DRY WEIGHT <br />~~`~~"`' ~~ GRAND JUNCTION <br />J ~ f'J LINCOLN DeVORE, Inc. <br />"'` ~~ Geotechnical Consultants <br />Grand Junction, Colorado <br />25 30 <br />Elk Creek Mine <br />Somerset, Colorado <br />Oxbow Mining, Inc. <br />Somerset, Colorado <br />Job No. Drawn Date <br />92198-GJ SV 9-19-06 <br />a~r~tvFn SFP 2 2 7M6 <br />