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I <br /> k <br /> UNIFIED SOIL CLASSIFICATION SYSTEM <br /> V <br /> USCS TYPICAL <br /> MAJOR DIVISIONS SYMBOL DESCRIPTIONS <br /> ' G W WELL-GRADEMIXTURES WIDTH LITTLE OR NO FINES ND <br /> CLEAN GRAVELS � <br /> g WITH LITTLE <br /> k9 GRAVELS OR NO FINES °Q POORLY-GRADED GRAVELS,GRAVEL-SAND <br /> (More than half of o GP MIXTURES WITH LITTLE OR NO FINES <br /> coarse fraction <br /> is larger than <br /> 41 the#4 sieve) ° GIV SILTY GRAVELS,GRAVEL-SILT-SAND <br /> GRAVELS MIXTURES <br /> WITH OVER <br /> COARSE GRAINED 12% FINES U, CLAYEY GRAVELS,GRAVEL-SAND-CLAY <br /> @ SOILS MIXTURES <br /> re than half S WELL-GRADED-SANDS,SAND-GRAVEL <br /> (More <br /> CLEAN SANDS MIXTURES WITH LITTLE OR NO FINES <br /> is larger than SANDS WITH LITTLE <br /> the#200 sieve) (More than halt of OR NO FINES SP POORLY-GRADED SANDS,SAND-GRAVEL <br /> coarse fraction MIXTURES WITH LITTLE OR NO FINES <br /> is smaller than <br /> the#4 sieve) <br /> 1 SM SILTY SANDS,SAND-GRAVEL-SILT MIXTURES <br /> `{ SANDS WITH <br /> OVER 12% FINES � . <br /> M SC CLAYEY SANDS,SAND-GRAVEL-CLAY MIXTURES <br /> I <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 /> C 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 O OF LOW PLASTICITY <br /> More than half M INORGANIC SILTS,MICACEOUS OR <br /> H DIATOMACEOUS FINE SAND OR SILT <br /> of material <br /> is smaller than <br /> the#200 sieve) SILTS AND CLAYS <br /> CH FAT <br /> CLAYS OF HIGH PLASTICITY, <br /> (Liquid limit greater than 50) FAT CLAYS <br /> ORGANIC CLAYS&ORGANIC SILTS <br /> OH <br /> fff OF MEDIUM-TO-HIGH PLASTICITY <br /> L[::: HIGHLY ORGANIC SOILS �' � � PT PEAT,HUMUS,SWAMP SOILS WITH HIGH <br /> ORGANIC CONTENT <br /> m <br /> a <br /> UNIFIED SOIL CLASSIFICATION SYSTEM PLATE <br /> IC L E I N F E L D E R SAN JOAQUIN COUNTY MOSQUITO & VECTOR <br /> o - — CONTROL DISTRICT n _ <br /> — LODI, CALIFORNIA A <br /> Draiied Ry ,3pr, F'miFr.l N' ' 36274 TI! <br /> eepp:om�cmmaeem x°oa <br /> f <br />