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L %0.0 1%w <br /> UNIFIED SOIL CLASSIFICATION SYSTEM <br /> L <br /> MAJOR DIVISIONS USCS TYPICAL <br /> SYMBOL DESCRIPTIONS <br /> L A GW WELL-GRADED GRAVELS,GRAVEL-SAND <br /> CLEAN GRAVELS I MIXTURES WITH LITTLE OR NO FINES <br /> WITH LITTLE <br /> GRAVELS OR NO FINES <br /> (More than half of GP MIXTURES WIDTH LITTLE OR ED NO FI ES VEL-SAND <br /> coarse fraction O <br /> is larger than <br /> I. the#4 sieve) 0 GM SILTY GRAVELS,GRAVEL-SILT-SAND <br /> GRAVELS MIXTURES <br /> COARSE WITH OVER <br /> GRAINED 12% FINES CLAYEY GRAVELS,GRAVEL-SAND-CLAY <br /> 6. SOILS GC MIXTURES <br /> L (More than half SW WELL-GRADED SANDS,SAND-GRAVEL <br /> of material CLEAN SANDS MIXTURES WITH LITTLE OR NO FINES <br /> is larger than SANDS WITH LITTLE <br /> the#200 sieve) (More than half of OR NO FINES <br /> coarse fraction `SP POORLY-GRADED <br /> MIXTUR S WITTHLITTTTLE DSOR NO F NEVEL <br /> L' is smaller than <br /> the#4 sieve) <br /> '1 SM SILTY SANDS,SAND-GRAVEL-SILT MIXTURES <br /> �. SANDS WITH <br /> OVER 12% FINES . .: '. <br /> SC CLAYEY SANDS,SAND-GRAVEL-CLAY MIXTURES <br /> t. <br /> INORGANIC SILTS&VERY FINE SANDS, <br /> ML SILTY OR CLAYEY FINE SANDS, <br /> CLAYEY SILTS WITH SLIGHT PLASTICITY <br /> i. <br /> SILTS AND CLAYSCL INORGANIC CLAYS OF LOW TO MEDIUM <br /> PLASTICITY,GRAVELLY CLAYS,SANDY CLAYS, <br /> (Liquid limit less than 50) SILTY CLAYS,LEAN CLAYS <br /> FINE — <br /> GRAINED ORGANIC SILTS&ORGANIC SILTY CLAYS <br /> SOILS — OL OF LOW PLASTICITY <br /> L <br /> (More than half J50) <br /> INORGANIC SILTS,MICACEOUS OR <br /> SI <br /> of material DIATOMACEOUS FINE SAND OR SILT <br /> is smaller than <br /> the#200 sieve) SILTS AND INORGANIC CLAYS OF HIGH PLASTICITY, <br /> (Liquid limit greatFAT CLAYS <br /> ORGANIC CLAYS&ORGANIC SILTS <br /> OF MEDIUM-TO-HIGH PLASTICITY <br /> L HIGHLY ORGANIC SOILSPT PEAT,HUMUS,SWAMP SOILS WITH HIGH <br /> ORGANIC CONTENT <br /> Q <br /> m <br /> UNIFIED SOIL CLASSIFICATION SYSTE PLATE <br /> k" K L E I N F E L D E R 19898 S. JACK TONE ROAD <br /> Lo RIPON, CALIFORNIA <br /> N <br /> N �G <br /> 0. Drafted By: G.GOMF.Z Project No.: 43498.G01 <br /> Y Date: 9/21/2005 File Number: ST05G150 <br /> CapyMM�,Mc 2U <br /> L <br />