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� <br />�• <br />UNIFIED SOIL CLASSIFICATION SYSTEM <br />MAJOR DIVISIONS �P GROUP NAME <br />SYMBOL <br />GRAVEL CLEAN GRAVEL GW WFLLGRADED GRAVEI, FWE TO CWRSE GRAVEL ' <br />COARSE - <br />GRNNED r,�te nuw sox oF Gp POORLV{'aRADED GRAVEL <br />CMRSE FRACIION <br />��� RELUNED ON NO. A GRAVEL GM �TM �`�� <br />�� WRH FINES <br />GC CIAYEY GR4VEL <br />�E � � CLEAN SAND <br />REfAINED ON SAND $W WELL�G'iPDED S4ND. FINE TO CMRSE SW D <br />NO. 200 SIEVE <br />SP POORLY�RADED SAND <br />MORE hVW 50% OF <br />Caws� Faaciar� SAND <br />vnss�s r�o. a s�e� yy� FINES SM s�tn srwo <br />SC CV+YEVSWD <br />SILTANDCIAY INORGANIC ML S�T <br />FINE - <br />GRAINED �o ur,tt CL cur <br />�ss nvw soss <br />gp�� ORGANIC OL oncnra�c siu. oacru��c cuv <br />P� � S� SILT AND CLAY INORGANIC MH s� oF wcH av�sncm, ewsnc s�u <br />116U1D LIMIf CH CIAY OF HIGH PlASi1CIlY, FAT CIAY <br />5096 OR AAORE <br />ORGANIC OH oac��c Cu+v atGqNic s�u <br />HIGHLY ORGANIC SOILS PT aFat <br />NOTES: <br />SOIL MOISTURE MODIFIERS <br />1) Field Classiflcafion is based on Dry- Absence of moisfure, dusty, dry <br />vlwal examinatlon of soll In general to the touch <br />accordance with ASTM D 2488-93. Molst• Damp, but no vlsible water <br />2) Soll classificatlon using laborafory <br />tests Is based on ASiM D 2487-93. yyet- Visible hee water or safurated, <br />3) Descdptlons of soll densHy or usualN soll 1; obtalnecl from <br />consistency are based on bebw wafsr table <br />Inferpretation of blowcount data, <br />visual appearance of soils, and/or <br />test data. <br />�ELSON GEOTECHNICAL UNIFIED SOIL CLAS;iIFICATION SYSTEM <br />NGA ASSOCIATES, INC. <br />GEOTECHNICAL ENGINEERS & GEOLOGISTS FIGURE 4 "II <br />wmp�nY np�spxau i mwra�w�n V Arww�.m <br />