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J ��J KAPREALIAN ENGINEERING I N C O R P O R A T E D ! MAJOR DIVISIONS SYMBOLS I TYPICAL SOIL DESCRIPTIONS ' Ow I [ 1 b°•4°'a° Well graded gravels or gravel -sand mixtures,little or no fines ! I t GRAVELS l I ti.�.{. I I I GP ;j�fti. Poorly graded gravels or gravel-sand mixtures,little or no fines I 1 i (More than 1/2 of coarse I ti•ti•;' [ fraction >No 4 sieve size) 1 GM Silty gravels,gravel-sand-silt mixtures I [ I I 1 GC Clayey gravels,gravel- sand-clay mixtures [ I I I SW Well graded sands or gravelly sands,little or no fines I I 1SANDS, I ' 1 I I I SP Poorly graded sands or gravelly sands,little or no fines I I t (More than 1/2 of coarse ! ! I fraction<No 4 sieve size) I SM :.:. Silty sands,sand-silt mixtures 1 I I I I SC Clayey sands,sand-clay mixtures ' I I i ML ZZ— = Inorganic silts and very fine sands,rock flour,silty or clayey ! SILTS &CLAYS i _ fine sands or clayey silts with slight plasticity _ 1 Inorganic clays of low to medium plasticity,gravelly clays, I 1 I i LL<50 CL sandy clays,silty clays,lean clays I I i I • • • OL \ Organic silts and organic silty clays of low plasticity k \ \ I I I � � ♦ ' I I I I MH Inorganic silts,micaceous or diatomaceous fine sandy or silty I SILTS &_CLAYS soils,elastic silts t 1 I I CHI LL>50 Inorganic clays of high plasticity,fat clays i i I I I OH Organic clays of medium to high plasticity,organic silty clays, 1 [ I I organic silts I i I I HIGHLY ORGANIC SOILS 1 Pt Peat and other highly organic soils I I 1 I I I DUAL(TRANSITION) 1 Soil charactensitics are transitional between the sot] t I SOILS 1 classifications listed above ' I I i I l I 1 I i 1 i •• CLASSIFICATION CHART(Unified Soil Classification System)