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UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISION CLASSIFICATION TYPICAL NAMES <br /> SYMBOL <br /> GRAVELS CLEAN GRAVELS GW WELL GRADED GRAVELS.GRAVEOSAND MIXTURES <br /> MORE THAN WITH LITTLE TO <br /> COARSE HALF COARSE NO FINES GP POORLY GRADED GRAVELS-GRAVELISAND MIXTURES <br /> GRAINED FRACTION IS <br /> LARGER THAN GRAVEL WITH GMSILTY GRAVELS.POORLY GRADED GRAVEUSAND SILT MIXTURE <br /> SOILS NO 4 SIEVE OVER 12%FINES <br /> GG CLAYEY GRAVELS.POORLY GRADED GRAVEUSANOiCIAY MIXTUF <br /> MO@E.THAN CCGW5ANDS SW , WELLI fRAOED SANDS.GRAVELLY S)WDS <br /> HALF OF THE SANDS VV(TH LITTLE TO <br /> MATERIAL IS MORE THAN NO FINES SP POORLY GRADED SANDS,GRAVELLY SANDS <br /> LARGER THAN HAL .COARSE <br /> NO-200 SIEVE. FRACTION IS <br /> SMALLER TFIANSANDS WITH SM SILTY SANDS.POORLY GRADED SANINSILT MIXTURES <br /> NO.'4 STEVE OVER 12%FINES <br /> SC CLAYEY SANS.POORLY GRADED SANO/CLAY MIXTURES <br /> ML INORGANIC SILTSAND-VERY FINE SANDS,ROCK FLOUR.SILTY Of <br /> FINE _CLAYEY'FINE SANDS.OR CLAYEY SILTS WTTH SLIGHT PLASTICR1 <br /> GRAINED SILTS AND CLAYS �L INORGANIC CLAYS OF LOW TO MEDIUM PLASTIC".. <br /> GRAVELLY CLAYS,SANDY CLAYS,SILTY CLAYS LEAN CLAYS <br /> SOILS LIQUID LIMIT LESS THAN 50 <br /> OL ORGANIC CLAYS AND ORGANIC SILTY CLAYS OF LOW PLASITCRI <br /> MORE THAN INORGANIC SILTS,MICACEOUS OR DIATOMACEOUS <br /> HALF OF THE MH FINE SANDY OR SILTY SOILS.ELASTIC SILTS <br /> MATERIAL IS SILTS AND CLAYS INORGANIC CLAYS OF HIGH PLASTICITY FAT CLAYS <br /> SMALLERThWN CH <br /> NO.20 5lEYE LIQUID LIMB GREATER TITAN SQ <br /> OH ORGANIC CLAYS OF MEDIUM TO HIGH PLA571CDY.ORGANIC SILT: <br /> HIGHLY ORGANIC SOILS . Pt 'PEATAND OTHER HIGHLY ORGANIC SILTS <br /> Flat-,1 <br />