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UNIFIED SOIL CLASSIFICATION SYSTEM <br /> USCS TYPICAL <br /> MAJOR DIVISIONS SYMBOL DESCRIPTIONS <br /> VWGWELL-GRADED GRAVELS,GRAVEL-SAND <br /> CLEAN GRAVELS MIXTURES WITH LITTLE OR NO FINES <br /> GRAVELS WITH LITTLE <br /> OR NO FINES <br /> POORLY-GRADED GRAVELS GRAVEL-SAND <br /> (More than half of o MIXTURES WITH LITTLE OR NO FINES <br /> coarse fraction DO <br /> is larger than <br /> the#4 sieve) GM SILTY GRAVELS,GRAVEL-SILT-SAND <br /> GRAVELS MIXTURES <br />' <br /> COARSE , WITH OVER <br /> GRAINED 12% FINES GC CLAYEY GRAVELS,GRAVEL-SAND-CLAY <br /> SOILS MIXTURES <br /> (More than halfS W WELL-GRADED SANDS SAND-GRAVEL <br /> of material CLEAN SANDS of WITH LITTLE OR NO FINES <br /> is larger than SANDS WITH LITTLE <br />' the#200 sieve) (More than half of OR NO FINES SP POORLY-GRADED SANDS,SAND-GRAVEL <br /> coarse traction MIXTURES WITH LITTLE OR NO FINES <br /> is smaller than <br /> the#4 sieve) <br />' SM SILTY SANDS SAND-GRAVEL-SILT MIXTURES <br /> SANDS WITH <br /> OVER 12% FINES <br /> SC CLAYEY SANDS SAND-GRAVEL-CLAY MIXTURES <br /> INORGANIC SILTS&VERY FINE SANDS, <br />' <br /> ML SILTY OR CLAYEY FINE SANDS, <br /> CLAYEY SILTS WITH SLIGHT PLASTICITY <br /> SILTS AND CLAYSINORGANIC CLAYS OF LOW TO MEDIUM <br /> CL <br /> — PLASTICITY,GRAVELLY CLAYS,SANDY CLAYS, <br /> (Liquid limit less than 50) SILTY CLAYS,LEAN CLAYS <br /> FINE <br /> GRAINED — ORGANIC SILTS&ORGANIC SILTY CLAYS <br /> SOILSOL OF LOW PLASTICITY <br /> (More than half M I"I INORGANIC SILTS,MICACEOUS OR <br /> of material DIATOMACEOUS FINE SAND OR SILT <br /> is smaller than <br /> the#208 sieve) SILTS AND CLAYS INORGANIC CLAYS OF HIGH PLASTICITY, <br /> (Liquid limit greater than 50) CH FAT CLAYS <br /> O H ORGANIC CLAYS&ORGANIC SILTS <br /> OF MEDIUM-TO-HIGH PLASTICITY <br /> 00 <br /> ' LOAMS UNDER USDA SOIL CLASSIFICATION SYSTEM, <br /> SOIL OF APPROXIMATELY EQUAL SAND/SILTICLAY <br /> �w UNIFIED SOIL CLASSIFICATION SYSTEM PLATE <br /> KLEIN FELDER GENERAL MILLS <br /> ' S 2000 WEST TURNER ROAD A.."� <br /> 8 Drafted By GDG Project No 20-1417-16 LODI, CALIFORNIA <br /> Date 6/5/2002 File Number 2002G119 <br /> C-Mlighl Kiain%bw Inc 2000 <br />