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MAJOR DIVISIONS GROUP E GROUP NAME <br /> -- - _ ----__- _ <br /> SYMBOL - - - <br /> GRAVEL CLEAN j GW WELL-GRADED GRAVEL, <br /> COARSE MORE THAN GRAVEL � FINE TO COARSE GRAVEL <br /> GRAINED 50% OF - <br />' GP POORLY-GRADED <br /> SOILS COARSE <br /> MORE THAN FRACTION - <br /> -- -- - --LGRAVEL --- -- - - - <br /> 500/0 RETAINED ON 7GRAVEL I -GM SILTY GRAVEL - <br /> RETAINED NO 4 SIEVE WSGC - CLAYEYGRAVEL <br /> ON NO 200 - - -- - - - - --- - - -- - - - -- <br /> SIEVE SAND CLEAN SW WELL-GRADED SAND, <br /> MORE THAN SAND I - FINE TO COARSE SAND- <br /> 0 OF <br /> COARSE SP POORLY-GRADED SAND <br /> FRACTION SAND WITH SM _J SILTY SAND_ <br /> PASSES NO 4 FINES SC CLAYEY <br /> ~_SIEVE SAND-Y '� <br /> I SILT AND INORGANIC ML SILT - <br /> FINE CLAY <br /> LIQUID LIMIT <br /> GRAINED Q - - <br /> SOILS LESS THAN 50 ORGANIC OL ]ORGANIC SILT, ORGANIC <br /> MORE THAN CLAY <br /> 50% SILT AND INORGANIC MH kr OF HIGH <br /> PASSES CLAY PLASTICITY, ELASTIC <br /> NO 200 # LIQUID LIMIT 1 SILT <br /> SIEVE 50 OR MORE <br /> CH CLAY OF HIGH <br /> - _ - PLASTICITY, FAT CLAY <br /> I ORGANIC OH I ORGANIC CLAY, <br /> ORGANIC SILT_ <br /> HIGHLY ORGANIC SOILS T ji _--PT PEAT <br /> Ref Unified Sod Classification System, from American Society for Testing and Materials, 1985 <br /> I <br />