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Sample Origin OxbowGob Pile <br />Material Description Coal Waste <br />Soil Type Coal Waste <br />I I <br />I I I <br />ILia:::lL - - - - -- - ._.1 <br />r t I! I I <br />TEST METHOD: ASTM D-698 A <br />PREP. METHOD: MOIST <br />HAMMER: MANUAL <br />! ! ! FRACTION USED: -4 <br />MOLD SIZE: 4" diameter <br />G I ! <br />t i .. <br />Specific Gravity: <br />MAXIMUM DENSITY: 76.3 pd <br />OPTIMUM MOISTURE: 16.0% <br />ROCK CORRECTION: <br />MAXIMUM DENSITY: <br />OPTIMUM MOISTURE: <br />TEST RESULTS <br />None Used <br />Liquid Limit: <br />Plastic Limit: <br />Plasiticity Index: <br />- - - - - -- ; - - - - -- I 1 {-------- {--- 1 - - - -1 <br />1 <br />GRAND JUNCTION <br />LINCOLN - DeVORE, Inc. <br />Geotechnical Consultants <br />Grand Junction, Colorado <br />t:: :a: ::t <br />t t t t <br />Sieve <br />Size <br />5" <br />4" <br />3" <br />2 " <br />1 %i' <br />1" <br />3/4" <br />1/2" <br />3/8" <br />4 <br />10 <br />20 <br />40 <br />100 <br />200 <br />0.02 <br />0.005 <br />Test By <br />Test Date <br />Sample # <br />Percent <br />Passing <br />100 <br />86 <br />69 <br />55 <br />37 <br />28.9 <br />-- -; -- -1 -- I II -l- =G- - Il <br />t t- -I -I- I - -j <br />1 1--Zero Air Voids Curves <br />1 - 1 <br />i <br />t ---- -- :- : : :a - - - - -- <br />t i f I ! <br />Gs U -I- 1 - - -1- -1 <br />----i: -i :--- is -- <br />t I I <br />Job No. <br />94206 -GJ <br />-i - ::�- -- 1 : : : :1: <br />j 1 j <br />1 'Gs 1.801 1 <br />Gs 1.70 <br />, 1 <br />! <br />a.. 11 t G - -!- ! -I I a- <br />r - - - - - -!- - - :I- -- ---- 1 - - - -- - a.. 1 - - -- -- 1 - -1- - 1- - -! - -- - - -1 -- - - -- [ :: l _ ---- 1 1 - -- I- - 1 : ::: -- ?--- 1 - - - <br />J - � J. <br />1 <br />I - - - -I ! !... I I I , ... 1 I- - I t i l t !! -! a a l l <br />50 ) ! I 1 I r 1I C- I 1 I I 1 ;- - .-. <br />10 15 20 25 30 35 <br />MOISTURE - % of DRY WEIGHT <br />GOB Pile <br />Somerset, Colorado <br />Oxbow Mining, LLC <br />Somerset, Colorado <br />I Drawn <br />AM <br />40 <br />GS <br />6 -20 -11 <br />2 <br />Date <br />6 -20 -11 <br />