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� � UNIFIED SOIL CLASSIFICATION SYSTEM <br /> I MAIOR DIVISIONS � C'�ROUP NAME <br /> GRAVEL CLF1W GW4VEL GW wa1�Ga�o c�anve4 at�m cawsE Gwwa <br /> ICOARSE <br /> GRAINED n�oae nwN sox oF Gp Poo�r-ca�o sw�vfl <br /> I SOILS �D a��i ra GRAVEL s�n canve� <br /> � WIiH FINES � <br /> � � curEvsanve� <br /> �o o� SAND CLEAN SAND SW v�ur,�aneu snrm.Fr�ro cav�su+o <br /> No.200 SEve <br /> I � �Y.�� <br /> MORE hWJ 60%OF <br /> fP��'�O.°� WITH F NES SM s�tt swo <br /> s� cuvEv sa�o li <br /> ISILTfWDCIAY INORGANIC ML s�u ' <br /> FINE- <br /> I GRAINED uouio unnrt CL cva <br /> �ss nvw aox <br /> saLS ortGa,MIC a oRcaor,�c sat ot+c�w�c cwv <br /> Ians�s No��� SILT AND CLAY INORCANIC MH sat oF EiiGH PiAsncnY.Eusnc saT <br /> 1 ucuo uMrt CH cur oF H�+ansncin.FnT cxnr <br /> 50%OR AAORE � <br /> IORGANIC ON ORGANIC CIAV,ORGANIC 50.T <br /> HIGHLY ORGANIC SOIiS PT �T <br /> INOiES; <br /> SOIL MOISilA2E N10DIFIERS <br /> I 1) Fleld clastificallon Is based on pry_q�e of mdsfure,dusty, dry <br /> vlsual examination of soil in general to the touch <br /> accordance wlth ASTM D 2486-83. Molsl-Damp,but no vlsible water <br /> I 2) Soil classiflcallon using laboratory <br /> tesis Is based on AS1M D 2d87-83. Wet-Y�ible hee water a salurcRed, <br /> 3) DescdPtlons of sdl den�tY« usualN soN Is obtahied hom <br /> I conslsfency are bazed on ����� <br /> Inter�xetatbn of blowcount doTa, <br /> visual appearance of soAs,and/or <br /> Itest data. <br /> I NELSON-COWRETTE&ASSOCIATES, INc. UNIFIED SOIL CLASSIFICATION SYSTEM <br /> �� Ca�su�nNc GEoiEclw�cu ENwrJH#tS GEa0c�575 <br /> =�µpEMnrrom�rrd�S�apansis FIGIIRE 3 <br /> � <br />