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,ME <br /> Unified Sail Classification System <br /> Group <br /> Primary Divisions Symbol/Graphic Typical Names <br /> ° <br /> COARSE GRAVELS CLEAN G' o Well graded gravels, gravel-sand mixtures; little or no tines <br /> GRAINED GRAVELS o <br /> SOILS half of o <br /> coarse (less than GP o Poorly graded gravels or gravel-sand mixtures; little or no <br /> more than fraction 5% fines) C fines <br /> iarger thanej <br /> largerhalthan sieve ,GRAVEL G M o° Silty gravels, gravel-sand-silt mixtures <br /> #200 sieve WITH <br /> FINES GC Clayey gravels, grave!-sand-Gay mixtures <br /> SANDS CLEAN SW.' Well graded sands, gravelly sands, little or no fines <br /> SANDS <br /> half of <br /> coarse {less than <br /> fraction 5y° foes) S P PQO graded sands or gravelly sands, little or no fines <br /> smaller <br /> %'. than 14 <br /> sieve SANDS SM Silty sands, sand-silt mixtures <br /> WITH <br /> FINES SC Clayey sands, sand-clay mixtures, plastic fined <br /> FINE SILTS AND CLAYS ML inorganic slits and very fine sand, rock flour, silty or clayey <br /> GRAINED fine sands or clayey silts, with slight plasticity ' s <br /> SOILS liquid limit <br /> less than 50% CL Inorganic clays of low to medium plasticity, gravelly clays, <br /> sandy clays, silty clays, lean clays <br /> more than <br /> half is OL Organic silts and organic silty clays of low plasticity <br /> smaller <br /> than #240 SILTS AND CLAYS MH Inorganic silts.micaceous or diatomaceous fine sandy or sill} <br /> sieve soils, elastic silts <br /> liquid limit VA <br /> more than 50% C H VA Inorganic clays of high plasticity, tat clays <br /> OH Organic clays of medium to high plasticity, organic silts <br /> HIGHLY 08GANIC SOILS_ _P_t_{:�+ _Peat and other highfy_arganic_soiis <br /> Pacific Environmental ,Group, Inc. <br />