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<br />GRADATI®N CURVE <br />Sample 19+00 at 5-7 feet <br />100 - <br />95 - <br />90 - <br />85 - <br />80 - <br />75 - <br />70 - <br />w ~_ <br />~ 60 - <br />55 - <br />u 50 - <br />45 - <br />m 40 - <br />m 35 - <br />a 30 - <br />25 - <br />20 - <br />15 - <br />10- <br />5=i <br />o' <br /> <br />_ <br />• 1 _L J <br />_l J 1 l l <br />.I L _ _I _L • <br />1 _t 1 L <br /> <br /> <br />• ~ <br />~ ~ • <br />~ ~ <br />SI <br />, <br /> <br />- <br />----- gravel <br />• <br />----------- -- -------- <br />sand -; , <br />---------- ----- ---- ---- ----- --- --- <br />~ ~ ~' <br />---- -- <br />clay ---- <br />i <br /> ; <br /> <br /> <br /> <br />• <br />r_____~ t_____r____~____ <br /> <br />~____.,_____r__,__~____~_____r____'____ • <br /> <br />__r____~_____r__ <br /> <br />- <br />i_____r_____~ ____ <br />r_____~ r_____r <br />---- <br />_______ <br />, r_ t_____r_____~ __ <br />____ ~_____~_____ <br /> <br />r_____r____~_____r__ <br /> ' <br /> , <br /> • <br /> <br /> ~. ~ ~ ~ ~ <br />• <br /> <br />3 ~~ - ----- ---- ' ~ -- ---- -----~---- ~----~ <br /># --- ----- ---- ---- ----- ---- -- - <br />200 ----- ---- ----- - <br />75 19.0 4.8 0.85 0.25 0.075 ~ 0.0479 0.0220 0.0092 0.0046 0.0023 <br />37.5 9.5 20 0.43 0.15 O.D67D 0.0344 0.0129 0.0066 0.0032 0.0014 <br />Grain Size In Millimeters <br />• <br />