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UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS GFIAPruc I LETTER TYPICIILDESCRIPnONS <br /> SYMBOL SYMBOL <br /> GW wELL[BiADED GRAVELS,GRAVEL-SAND <br /> G <br /> CLEAN RAVELS MIXnMS UTILEORNORNES <br /> GRAVEL AND 4UTTLE OR NO RNEM IN <br /> GRAVELLY SOILS GP PCCFLY43DADED GRAVELS,GRAVEL-SAND <br /> MDCILURES,UTTLEORNoFINES <br /> COARSE MORE THAN K%OF <br /> COARSE FRACTION SILTY 43RAVELS,GPAVEL•B ND43ILT <br /> GRAINED NRETAINE O GRAVELS VATH FINES OM MDCIURES <br /> SOILS <br /> OL 4 SIEVE <br /> {APPRECIABLE AMOUNT <br /> OF FINEST GC CLAYEY GRAVELS,GRAVEL-SAND-CLAY <br /> MIXTURES <br /> WELL-GRADED SANDS,GRAVELLY SANDS, <br /> MORE THAN 50% CEN BAND S W UTTLE OR NO FINES <br /> OF MATERIAL IS SAND AND <br /> J,�THAN SANDY SOILS a.lTTI.E OR NO FINES) SP POADED 9ANnS,GRAVELLY SANDS, <br /> LI <br /> TTLETLE nE OR OR NNo FINES <br /> NO.200 SIEVE SIZE MOW THANw%OF <br /> COARSE FRACTION <br /> PASSING <br /> NQ 4 SIEVE <br /> SANDS WITH FINES SM SILTY SANDS,SAND-SILTMIXTURES <br /> W";ECIABLE AMOUNT <br /> OF FINES) SC CLAYEY SANDS SAND-CLAY MIXTURES <br /> INORGANIC SILTS AND VERY FINE SANDS <br /> MIL ROCKFLOUR,SILTYOR CLAYEY FINE SANDS <br /> OR CLAYEY SILTS W TH SLIGHT PLASTICITY <br /> FINE SILT'S AND CLAYS INORGANIC CLAYS OF LOW TO MEDIUM <br /> GRAINED CL PLASTICITY GRAVELLY CLAYS BANDY <br /> SOILS UOUID UMITL=THAN 60 CLAYS,SILTY CLAYS,LEAN CLAYS <br /> OL ORGANIC SILTS,AND OaGANICSLTYCLAYS <br /> OF LOW PLASTICITY <br /> INORGANIC SILTS,MICACEOUS OR DIATO- <br /> MORE THAN 60% M H MACEOUS FINE SAND OR SILTY SOILS <br /> OF MATERIAL IS SILTS AND CLAYS <br /> INORGANIC SMALLER THANCIAYSOFHIGH PIASTICITY, <br /> LIQUID UMIT $THAN 60 FAT CLAYS <br /> NQ 200 SIEVE SIZE <br /> CH ORGANIC GAYS OF MEDIUM TO HIGH <br /> PLASTICITY,ORGANIC SILTS <br /> HIGHLY ORGANIC SOILS PT PEAT HUMUS,SWAMP SOILS WITH HIGH <br /> ORGANIC CONTENTS <br /> NOTE DUAL SYMBOLS ARE USED TOINDICATE BORDERLINE SAIL CLASSIFICATIONS <br /> KEY TO LOG OF BORINGS <br /> SAMPLES A BLOWCOtUNTS LABORATORY TESTS <br /> HAMMER SLOWS PER FOOT OF PENETRATION AL ATTHaBERG LIMITS TEST <br /> 30 ■ INDICATES UNDI STURBED SAMPLE DSCU DIRECT SHEAR TEST(Condi LO4 Undrained) <br /> ® INDICATES DISTURBED SAMPLE CBR CAlFCRNIABEARINGRATIO TIEST <br /> O STANDARD PENETRATION TEST SAMPLE COMP COMPACTION TEST <br /> ❑ INDICATES NO RECOVERY CAN CONFINED COMPRESSION(Conadidation Te80 <br /> SAMPLES DRIVEN WITH A 1404POUND HAMMER -200 PERCENT PASSING NO 20D SIEVE <br /> DROPPING 3D INCHES (Teat Reautla In Parentheaea) <br /> PARKER ENVIRONMENTAL SERVICES <br />