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UNIFIED SOIL CLASSIFICATION SYSTEM (� <br /> !' ,■R <br /> I I <br /> I <br /> MAJOR DIVISION GROUP GRAPIIIC — <br /> YMI3 L DESCRIPTION LOG <br /> GRAVELLY SOILS CLEAN GRAVELLY WELL CRAVED GRAVELS: <br /> Gly OR GRAVEL-SAND MIXTURES -� <br /> + SOILS I <br /> N POORLY GRADED GRAVELS OIL - <br /> i OVER 60%OF LITTLE OR NO POORLY GRADED � j� `• <br /> COARSE FRACTION FINES GP GRAVEL-SAND SILT MIXTURESSILTY G <br /> a•! LARGER TILAN GRAVELLY SOILS GRAVE4 AVELS 5AND SILOltTDCTUREORLSY SUDED - <br /> ! o m NO. SIEVE SIZE FYI I II FINES <br /> t�IV1 � i 11 '■ <br /> w N CLAYEY GRAVELS OR POORLY GRADED <br /> r m OVER 12% FINES GG GRAVEL-SAND -CLAY MIXTURES <br /> C \ P <br /> CLEAN SANDY WELL GRADED SANDS , k { <br /> tu N is i SANDY SOILS SOILS SW OR GRAVELLY SANDS <br /> i j ►- LITTLE OR NOPOORLY GRADED SANDS <br /> j v OVER 6096 OF SP OR GRAVELLY SANDS <br /> LCOARSE FRACTION SANDY SAILS <br /> E; + SMALLER THAN ,.• SILTY SANDS OR POORLY GRADED <br /> n WITI.� .NES SM SAND-SILT MIXTURES <br /> U NO.i SIEVE SIZE F <br /> CLAYEY SANDS OR POORLY GRADED <br /> OVER 12% FINES SC SAND-CLAY MIXTURES <br /> + INORGANIC SILTS,VERY FINE SANDS I11 <br /> s •a SILTY/CLAYEY FINE SANDS,CLAYEY <br /> N ML SILTS WITH SLIGHT PLASTICITY I <br /> (n +i ; SILTY AND CLAYEY SOILS INORGANIC CLAYS-LOW TO MEDIUM <br /> Ji l <br /> CITY,GRAVELLY,SANDY, y%%f <br /> LIQUID LIMIT LESS THAN 50 CL PLASTI . ' Fh i <br /> ORGANIC CLAYS OR ORGANIC SILTY I I I <br /> N OL CLAYS OF LOW PLASTICITY I <br /> o INORGANIC SILTS,MICACEOUS OR <br /> Z DIATOMACEOUS FINE SANDY Olt SILTY � <br /> MH SOILS OR ELASTIC SILTS <br /> az i " SILTY AND CLAYEY SOILS <br /> N a t INORGANIC CLAYS OF HIGH <br /> su. G ~ CH PLASTICITY,OR FAT CLAYS <br /> ofORGANIC CLAYS Os�LIQUID LIMIT GREATER THAN 50 _ { <br /> TO <br /> OH PLASTICITY,OIL ORG NIIC MEDIUM <br /> LTS INCH <br /> HIGHLY ORGANIC SOILS PEAT'OR OTHER HIGHLY <br /> R 1 PI ORGANIC SOIL S1Ld <br /> SAMPLE TYPES: SYMBOLS <br /> 3� UNDisTURAED SLEEVE ® WATER LEVEL <br /> 1. <br /> DISTURBED <br /> WATERINFLOW I <br /> t UNSUCCESSFUL ATTEMPT p <br /> arc tt�' r fiii <br /> ODOR OBSERVATION 1 <br /> NO NONE OBSERVED MD MODERATE ODOR I <br /> 3 <br /> }� SL SLIGHT ODOR ST STRONG ODOR <br /> PHOTOVAC TIP READINGS <br /> IN PARTS PER MILLION (PFM) C <br /> r'ND TO LOGS <br /> r PLATE A-2 <br /> • X ur �I, <br />