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UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS USCS TYPICAL <br /> SYMBOL DESCRIPTIONS <br /> a+ WELL-GRADED GRAVELS GRAVEL-SAND <br /> CLEAN GRAVELSG Y Y MIXTURES WITH LITTLE OR NO FINES <br /> CP <br /> ' WITH LITTLE OR 04w421 <br /> 4w <br /> GRAVELS <br /> GRAVELS NO FINES ; POORLY-GRADED GRAVELS GRAVEL-SAND <br /> 4W GP MIXTURES WITH LITTLE OR NO FINES <br /> '1 MORE THAN HALF <br /> COARSE FRACTION G+M SILTY GRAVELS, GRAVEL-SILT-SAND <br /> GRAVELS MIXTURES <br /> IS LARGER THAN WITH OVER <br /> COARSE THE #4 SIEVE 129; FINES <br /> GRAINED �+� CLAYEY GRAVELS, GRAVEL-SAND-CLAY <br /> SOILS 41 MIXTURES <br /> ' (MORE THAN HALF _ I---OF MATERIAL IS sw WELL-GRADED SANDS, SAND-GRAVEL <br /> LARGER THAN CLEAN SANDS S YY MIXTURES WITH LITTLE OR NO FINES <br /> THE #200 SIEVE) WITH LITTLE OR <br /> ' SANDS NO FINESP POORLY-GRADED SANDS, SAND-GRAVEL <br /> MIXTURES WITH LITTLE OR NO FINES <br /> MORE THAN HALF <br /> COARSE FRACTION S'M SILTY SANDS, SAND-GRAVEL-SILT MIXTURES <br /> IS SMALLER THAN SANDS WITH <br /> THE #4 SIEVE OVER 12% FINES <br /> riz SC CLAYEY SANDS, SAND-GRAVEL-SILT MIXTURES <br /> i <br /> INORGANIC SILTS & VERY FINE SANDS, <br /> ML SILTY OR CLAYEY FINE SANDS, <br /> i� CLAYEY SILTS WITH SLIGHT PLASTICITY <br /> SILTS AND CLAYS INORGANIC CLAYS OF LOW TO MEDIUM <br /> CL PLASTICITY, GRAVELLY CLAYS, SANDY CLAYS, <br /> ' SILTY CLAYS, LEAN CLAYS <br /> FINE LIQUID LIMIT LESS THAN 50 <br /> GRAINED ORGANIC SILTS 8 ORGANIC SILTY CLAYS <br /> SOILS OL OF LOW PLASTICITY <br /> 3 f 1 <br /> (�11J (MORE THAN HALF INORGANIC SILTS, MICACEOUS OR <br /> l 1 OF MATERIAL IS MH DIATOMACEOUS FINE SAND OR SILT <br /> SMALLER THAN <br /> ' THE #200 SIEVE) SILTS AND CLAYS <br /> HINORGANIC CLAYS OF HIGH PLASTICITY, <br /> �7 FAT CLAYS <br /> LIQUID LIMIT GREATER THAN 50 <br /> ' O HI <br /> ORGANIC CLAYS & ORGANIC SILTS <br /> OF MEDIUM-TO-HIGH PLASTICITY <br /> HIGHLY ORGANIC SOILS PT PEAT, HUMUS, SWAMP SOILS <br /> WITH HIGH ORGANIC CONTENTS <br /> I� SOIL CLASSIFICATION SYSTEM PLATE <br /> K LEI N F E L D E R SAN JOAQUIN COUNTY HOSPITAL <br /> ' FRENCH CAMP, CALIFORNIA 8-1 <br /> PROJECT NO. 24-220252-DOO <br /> Copyrtght Klemlelder, Inc 1993 <br /> i <br />