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SOIL CLASSIFICATION SYSTEM <br /> GROUP <br /> MAJOR DIVISIONS SYMBOL GROUP NAME <br /> . GRAVEL CLEAN GW WEIL•GMDED 6MVEL FlNE TO GOAlISE 6MVEL <br /> � COARSE GRAVEI <br /> GRAINED GP �0011LV•GMDED GMVEL <br /> . SOILS Mors Than 50% <br /> of Cwro FocNoa GRAVEL GM SiLTv Gn.eveL <br /> Retdnad WITH nNES <br /> on No.4 Saw GC CLAVEv cnAVEI <br /> .� Moro TMn 60% <br /> Ratained on SAND CLEAN SAND SW WELL-0RADED SAND,flNE TO COARSE SAND <br /> No.200 SNw <br /> SP P7011LV-0MGED SAND <br /> � Mars Th�n 60% <br /> of Coaris Fnetion SAND SM SILTv SAND <br /> P��ses WITH flNES <br /> No.4 Siaw SC ttAYEv BANo <br /> FlNE SILT AND CLAY ML SiIT <br /> GRAINED IMOROANIC <br /> l.J SOILS CL C�A� <br /> Liquid Urit <br /> �` <br /> Uu TMn 60 ORGANIC OL ORaANIC BILT,O�OANIC qJ1Y <br /> Mon Than 50% SILT AND CLAY MH LILT OF MIOM RASTICITY,EUSTIC SILT <br /> � (;.'� Pnsas INOR6ANIC � <br /> � No.200 Siew CH CUY OF MIGM FlJ15i1pTY, FAT MV <br /> Liquid Umit <br /> , 60 or Mae ORGANIC OH OH6AFIC CLAV,Ofl6ANIC SIIT <br /> HIGNLY ORGANIC SOILS PT ►EAT <br /> NOTES: SOIL MOISTURE MODIflERS: <br /> 1: Fleld eleasific�tion i�baaed on visud ezemin�tfon of soil Dry- Abs�nu of moi�ture,duNy,dry to tM toueh <br /> in peneral aceord�ncs with ASTM D2488•90. <br /> Moist• D�mp,but no visibts wabr <br /> � 2. Soil cles�ifie�t:on usirp Iabontory bus it basad o� <br /> ASTM D2487•90. W�c- Visfbl� hn watw w alunt�d, u�wtly sod h <br /> � obninad hom Mbw w�tM taW� <br /> 3. Descriptiona of�oil d�n�tty or constrteney an ba�W on <br /> interpretation of blow eou�t dats,vi�ud eppaar�nee of <br /> aoili, �nd/or taet daa. <br /> � <br /> 2 <br /> r <br /> 0 <br /> i <br /> e`� <br /> � soacuissi�c�noN srs�w <br /> � Geo�� Engineers fIQURE A-1 <br />