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• • <br /> UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS USCS TYPICAL <br /> SYMBOL DESCRIPTIONS <br /> GW WELL-GRADED GRAVELS,GRAVEL-SAND <br /> CLEAN GRAVELS MIXTURES WITH LITTLE OR NO FINES <br /> `{ <br /> WITH LITTLE -c- <br /> GRAVELS OR NO FINES GP POORLY-GRADED GRAVELS,GRAVEL-SAND <br /> m <br /> (More than half of MIXTURES WITH LITTLE OR NO FINES <br /> 'a <br /> coarse fraction <br /> is larger than GM SILTY GRAVELS,GRAVEL-SILT-SAND <br /> the #4 sieve) GRAVELS MIXTURES <br /> COARSE WITH OVER <br /> GRAINED 12% FINES GC CLAYEY GRAVELS,GRAVEL-SAND-CLAY <br /> SOILS MIXTURES <br /> (More than half _ - WELL-GRADED SANDS,SAND-GRAVEL <br /> of material - SW MIXTURES WITH LITTLE OR NO FINES <br /> is larger than CLEAN SANDS - <br /> the #200 sieve) WITH LITTLE <br /> SANDS OR NO FINES SP POORLY-GRADED SANDS, SAND-GRAVEL <br /> (More than half of MIXTURES WITH LITTLE OR NO FINES <br /> coarse fraction <br /> is smaller than <br /> the #4 sieve) - SM .SILTY SANDS, SAND-GRAVEL-SILT MIXTURES <br /> SANDS WITH <br /> OVER 12% FINES <br /> SC CLAYEY SANDS, SAND-GRAVEL-CLAY MIXTURES <br /> INORGANIC SILTS&VERY FINE SANDS, <br /> ML SILTY OR CLAYEY FINE SANDS, <br /> CLAYEY SILTS WITH SLIGHT PLASTICITY <br /> SILTS AND CLAYS INORGANIC CLAYS OF LOW TO MEDIUM <br /> CL PLASTICITY,GRAVELLY CLAYS,SANDY CLAYS, <br /> (Liquid limit less than 50) SILTY CLAYS,LEAN CLAYS <br /> FINE _ <br /> GRAINED OL ORGANIC SILTS&ORGANIC SILTY CLAYS <br /> SOILS OF LOW PLASTICITY <br /> (More than halfMH INORGANIC SILTS,MICACEOUS OR <br /> of material DIATOMACEOUS FINE SAND OR SILT <br /> is smaller than <br /> the #200 sieve) SILTS AND CLAYS INORGANIC CLAYS OF HIGH PLASTICITY, <br /> (Liquid limit greater than 50) CH FAT CLAYS <br /> OH ORGANIC CLAYS&ORGANIC SILTS <br /> OF MEDIUM-TO-HIGH PLASTICITY <br /> '5M <br /> HIGHLY ORGANIC SOILS = PT PEAT,HUMUS,SWAMP SOILS <br /> z•' WITH HIGH ORGANIC CONTENTS <br /> UNIFIED SOIL CLASSIFICATION SYSTEM PLATE <br /> KLEINFELDER <br /> FORMER SPRECKLES SUGAR PLANT 2 <br /> o Drafted By: DWA Project No.: 20-397801-W35 18800 SOUTH SPRECKLES ROAD A- <br /> w Date: 9/23/97 File Number: 1341 MANTECA, CALIFORNIA <br /> Y Copyright KleinielAer,Inc. 1997 <br />