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UNIFIED SOIL CLASSIFICATION SYSTEM <br /> USCS TYPICAL <br /> ' MAJOR DIVISIONS SYMBOL DESCRIPTIONS <br /> ' <br /> GW WELL GRADED GRAVELS GRAVEL SAND <br /> CLEAN GRAVELS : MIXTURES WITH LITTLE OR NO FINES <br /> ' <br /> WITH LITTLE GRAVELS OR NO FINES <br /> ° GP POORLY GRADED GRAVELS GRAVEL SAND <br /> (More than half of o MIXTURES WITH LITTLE OR NO FINES <br /> coarse fraction O <br /> is larger than <br /> the#4 sieve) GM SILTY GRAVELS GRAVEL SILT SAND <br /> GRAVELS MIXTURES <br /> ' COARSE WITH OVER <br /> GRAINED 12% FINES GC CLAYEY GRAVELS GRAVEL SAND CLAY <br /> SOILS MIXTURES <br /> t (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 SANDS SAND GRAVEL <br /> MIXTURES WITH LITTLE OR NO FINES <br /> Is fraction <br /> r than <br /> the#4 sieve) <br /> ' 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 /> ' M L SILTY OR CLAYEY FINE SANDS <br /> CLAYEY SILTS WITH SLIGHT PLASTICITY <br /> SILTS AND CLAYS CL 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 — <br /> — OL ORGANIC SILTS&ORGANIC SILTY CLAYS <br /> SOILS <br /> ' — OF LOW PLASTICITY <br /> (More than halfM H INORGANIC SILTS MICACEOUS OR <br /> of material DIATOMACEOUS FINE SAND OR SILT <br /> ' is smaller than 1111 <br /> the#200 sieve) SILTS AND CLAYS INORGANIC CLAYS OF HIGH PLASTICITY <br /> (Liquid limit greater than 50) CH FAT CLAYS <br /> ' ORGANIC CLAYS&ORGANIC SILTS <br /> OH OF MEDIUM TO HIGH PLASTICITY <br /> HIGHLY ORGANIC SOILS PT PEAT HUMUS SWAM?SOILS WITH HIGH <br /> ORGANIC CONTENT <br /> o — <br /> 01 <br /> 1 � <br /> UNIFIED SOIL CLASSIFICATION SYSTEM PLATE <br /> R4K L E I N F E L D E R MIOSSION CLUB <br /> SITE A TRUNK SEWER A PROJECT /� <br /> ' N STOCKTON CALIFORNIA A-1 <br /> m Drafted By GDG Project No 29699 E01 <br /> X Date 5/28/2003 Frle Number ST03G119 <br /> C.N11gh1 K1-1.k1.1 Inc 200.3 <br />