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DESCRIPTION MAJOR DIVISIONS <br /> Well-graded gravels,gravel sand mixtures,little or Clem gravels(little or no <br /> GW no fines fines <br /> ) Gravel and gravelly <br /> soils > <br /> Poorly-graded gravels,gravel sand mixtures,little <br /> GP or no fines o <br /> N <br /> More than 50%of d <br /> Silty gravels,gravel-sand-silt mixtures Sands with appreciable,amount coarse fraction retained <br /> GNI of fines on no.4 sieve <br /> en <br /> GC <br /> Clayey gravels,gravel-sand-clay mixtures � <br /> — <br /> b <br /> c <br /> Well-graded sands,gravelly sands,little or no fines Clean sand(little or no fines) <br /> Sty' Sands and sandy soils <br /> a� <br /> 0 <br /> Poorly-graded sands,gravelly sands, little or no <br /> SP fines = <br /> More than 50%of <br /> coarse fraction <br /> Silty sands sand-silt mixtures passing no.4 sieve <br /> Stir Sands with appreciable amount <br /> of fines <br /> Clayey sands,sand-silt mixtures <br /> SC U <br /> Inorganic silts and very fine sands,rock flour,silty <br /> or clayev fine sands or clayey silts with slight <br /> 1,11- plasticity <br /> Liquid limit less than Silts and <br /> Inorganic clays of low to medium plasticity, 50 <br /> CL gravely clays,sandy clays,silty clays, lean clays Clays y <br /> 0 <br /> -- c <br /> Organic silts and organic silty clays of low `-1 <br /> OL plasticity <br /> U <br /> Inorganic silts,micaceous or diatomaceous fine E <br /> NIH sand or silty soils <br /> c <br /> Inorganic clays of high plasticity,fat clays Liquid limit greats than Silts <br /> CH 50 and _ `o <br /> clays goo <br /> y N <br /> Organic clays of medium to high plasticity,organic <br /> OH silts <br /> Peat,pumas,swamp soils with high organic Highly organic soils <br /> PT contents <br /> f 4 <br /> Unified Soil Classification <br /> i 1 <br /> : Quality Control Inspection <br /> t Gwuxtrual rmcugmcn-Tt_nng Ubormna ? <br /> Cmw.ild Aver R ld Q-Vlodcsq CA 95351 <br /> i <br />