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~ Sample Origin Gob Pile, Eik Creek Mine <br />Material Description Coal Waste <br />Soil Type Coal Waste <br />130 <br />120 <br />110 <br />.~ 10C <br />a= <br />U <br />a_ <br />sc <br />Z <br />W <br />e~ <br />7 <br />s <br />5 <br />Test By LS <br />Test Date 8-07-06 <br />Sample # 5 <br /> Slave Percent <br /> <br />i <br />~ TEST RESULTS <br />Size <br />Passin <br /> MAXIMUM DENSITY: 68.5 pd <br />i OPTIMUM MOISTURE: 15.6% 5" <br />~ 4" <br />~~-- ROCK CORRECTION: 3„ <br /> <br />~ MAXIMUM DENSITY: 2„ <br />~ OPTIMUM MOISTURE; <br /> 1 '/z <br />' 1" <br />i TEST METHOD: ASTM D-698 A 3l4" <br />PREP. METHOD: MOIST <br />_~_.___,_ HAMMER: MANUAL 112" 100 <br />' FRACTION USED: -tt4 $~$" 99 <br />MOLb SIZE: 4"diameter 4 92 <br /> 10 81 <br />+ <br />I Speck Gravity: 20 71 <br />~ ~ Liquid Limes: 40 59 <br />Plastic Limil: <br />_ - <br />- ~ <br />~ 100 38 <br />Plasiticlty Index: <br />.. <br />T <br />200 <br />25.6 <br /> <br /> 0.005 <br />- - - '~ -- - '' -'NYIYCS IVI LCW NI V VIY.`! <br />i lT _ <br />i _'. .. <br />I_. i 1 s 1.90 <br />I 1 .. ~ s 1.80 <br />i <br />r--- ----- 4 _ _ . <br />---- ; -----{-~-._ - -. - s 1.7 <br />5 10 15 20 25 30 <br />MOISTURE - % of DRY WEIGHT <br />Elk Creek Mine <br />~~~`~' GRAND JUNCTION <br />{,'-~f;; LINCOLN - DeVORE, Inc. <br />` Geotechnical Consultants <br />Grand Junction. Colorado <br />Oxbow Mining, Inc. F <br />Somerset, Colorado `- <br />Job No. Drawn Date <br />92198-GJ SV 8-07-06 <br />