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L � <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 /> WITH LITTLE OR = _ <br /> GRAVELS NO FINES == GP POORLY-GRADED GRAVELS, GRAVEL-SAND <br /> _ — MIXTURES WITH LITTLE OR NO FINES <br /> MORE THAN HALF VGMC <br /> SILTY GRAVELS, GRAVEL-SILT-SAND <br /> COARSE FRACTION GRAVELSMIXTURES <br /> IS LARGER TITAN COARSE OVER <br /> GRAINED COARSE THE#4 SIEVE l2%FINESCLAYEY GRAVELS, GRAVEL-SAND-CLAY <br /> SOILS MIXTURES <br /> (MORE TITAN HALF - = S W <br /> OF MATERIAL IS _ WELL-GRADED SANDS, SAND-GRAVEL <br /> LARGER THAN CLEAN SANDS = MIXTURES WITHLITTLE OR NO FINES <br /> 771E#200 SIEVE) WITH LITTLE OR _ - <br /> SANDS NO FINES S P POORLY-GRADED SANDS, SAND-GRAVEL <br /> MIXTURES WITH LITTLE OR NO FINES <br /> MORE THAN HALF <br /> j COARSE FRACTION - SM SILTYSANDS, SAND-GRAVEL-SILTMIXTURES <br /> 1 IS SMALLER T71AN SANDS WITH <br /> THE#4 SIEVE OVER 12%FINES <br /> SC CLAYEYSANDS, SAND-GRAVEL-CLAYMIXTURE <br /> ML INORGANIC SILTS& VERYFINE SANDS, <br /> SILTY OR CLAYEY FINE SANDS, <br /> CLAYEY SILTS WITH SLIGHT PLASTICITY <br /> SILTS AND CLAYS <br /> C L INORGANIC CLAYS OF LOW TO MEDIUM <br /> PLASTICITY, GRAVELLYCLAYS, SANDYCLAYS, <br /> FINE LIQUID LIMITLESS THAN 50 SILTY CLAYS, LEANLAYS <br /> GRAINED I OL ORGANIC SILTS&ORGANIC SILTY CLAYS <br /> SOILS iii OFLOWPLAS77CITY <br /> (MORE THAN HALF M H INORGANIC SILTS, MICACEOUS OR <br /> OFMAT ERIAL IS DIATOMACEOUS FINE SAND OR SILT <br /> SMALLER THAN <br /> THE#200 SIEVE) SILTS AND CLAYS <br /> CH INORGANIC CLAYS OF HIGH PLASTTCICY, <br /> FAT CLAYS <br /> LIQUID LIMIT GREATER THAN SO <br /> OH ORGANIC CLAYS&ORGANIC SILTS <br /> OF MEDIUM-TO-HIGH PLASTICITY <br /> HIGHLY ORGANIC SOILS PT PEAT, HUMUS, SWAMP SONS <br /> WITH HIGH ORGANIC CONTEM'S <br /> SOIL CLASSIFICATION SYSTEM PLATE <br /> k" KLEI N FELDER PROPOSED LONE TREE ESTATES <br /> A-2 <br /> Drafted By: iw Project No.: 204280-01.601 ESCALON, CALIFORNIA <br /> Date: 1/14199 1 FDe Number: 20-0280-01.G01 <br /> Copyright A7euftlder.Inc.1999 <br />