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14 <br /> { <br /> MAJOR DIVISIONS GROUP <br /> SYMBOLS TYPICAL NAMES <br /> ` WELL-GRADED GRAVELS AND GRAVEL-SAND <br /> GW <br /> z cn a MIXTURES, LITTLE OR NO FINES <br /> Cu O W <br /> OFa, <br /> V U ; - GP POORLY GRADED GRAVELS AND GRAVEL-SAND <br /> N .1 0 � c c7 MIXTURES, LITTLE OR NO FINES <br /> cm w to <br /> 0 <br /> o a a H GM SILTY GRAVELS, GRAVEL-3AND-SILT MIXTURES <br /> n o d o z0 co Ln es <br /> w U H <br /> M GC CLAYEY GRAVELS, GRAVEL-SAND-CLAY <br /> H rFJ <br /> a 3 MIXTURES <br /> C7 c <br /> � N <br /> WWELL-GRADED SAS AND GRAVELLY SANDS, <br /> � SW ND <br /> o LITTLE OR NO FINES <br /> O Q O p H z y <br /> U N 3P w to 14 _ <br /> POORLY GRADED SANDS AIM GRAVELLY SANDS, <br /> y SP LITTLE OR NO FINES <br /> F ,y W to� <br /> ca <br /> :�': SM SILTY SANDS SAND-SILT MIXTURES <br /> ao � w <br /> U a, S F•�•'f,., <br /> SC CLAYEY SANDS, SAND-CLAY MIXTURES <br /> INORGANIC SILTS, VERY FINE SANDS, ROCK <br /> > '�� w N ML FLOUR, SILTY OR CLAYEY FINE SANDS <br /> 14 <br /> u) U a .7 INORGANIC CLAYS OF LOW TO MEDIUM PLASTICITY, <br /> O <br /> a o A 0 CL GRAVELLY CLAYS, SANDY CLAYS, SILTY CLAYS, <br /> w a LEAN CLAYS <br /> 'n O a tn ' I I I ORGANIC SILTS AND ORGANIC SILTY <br /> Gz w a + e � i OL <br /> Ed Z En � � � i CLAYS OF LOW PLASTICITY <br /> ra <br /> E+ INORGANIC SILTS, MICACEOUS OR DIATOMACEOUS <br /> nH <br /> FINE SANDS OR SILTS, ELASTIC SILTS <br /> tv A E" CH INORGANIC CLAYS OF HIGH PLASTICITY, <br /> FAT CLAYS <br /> m <br /> O a 0 � iii <br /> as w W <br /> Lo <br /> u1 [X �� OH ORGANIC CLAYS OF MEDIUM TO HIGH PLASTICITY <br /> ` <br /> HIGHLY ORGANIC SOILS PT PEAT, MUCK AND OTHER HIGHLY ORGANIC SOILS <br /> *BASED ON THE MATERIAL PASSING THE 3-INCH (75 rrn) SIEVE. <br /> UNIFIED SOIL CLASSIFICATION SYSTEM <br />