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i <br /> I MAJOR DIVISIONS I �ETTER TYPICAL DESCRIPTION <br /> SYMBOL <br /> � Ciean � GW Well-graded gravels, gravel-sand mixtures, little or no <br /> GRAVELS Gravels tines. — <br /> I � (less than GP Poorly-graded gravels, gravel-sand mixtures, little or <br /> � �N More than i 5% fines) no fines. <br /> � N 50% of coarse GM Silty gravels, gravel-sand•silt mixtures, non-plastic <br /> I � � (raction is Gravels _tines. <br /> � m > lar er than No. <br /> u, 9 with fines <br /> Z m•y 4 sieve �'j(�, Clayey gravels, gravel-sand-clay mixtures, plastic fines. <br /> E —_ -- <br /> 0 <br /> Q -- — <br /> 1 CC oN Ciean SW Well-c7reded sands, gravelly sands, little or no fines. <br /> � � SANDS Sands <br /> W c z (Iess than Poorlygraded sands or gravelly sands, little or no <br /> � � � More than 5°/a (ines) SP (ines. __ — <br /> { Q �L 50% of coarse — <br /> I O �" fraction is �'jM Silry sands�sand-silt mixtures, non�plastic fines. <br /> �maller than Sands <br /> No. 4 sieve , With fif12S SC Clayey sands, sand-clay mixtures, plastic fines. <br /> � � -- <br /> � ML Inorganic silts, rock flour, clayey silts with slight <br /> SILTS AND CLAYS plasticiry. <br /> O �N CL Inorganic ciays of low to medium plasticity, (lean clay) <br /> '� (A -- — <br /> E o � Liquid limit is less than 50% <br /> p �Z N � OL Or ganic silts and or ganic clays of low plasticiry. <br /> W <br /> I Z �r > - MH Inorganic silts, elastic. <br /> Q C "' � <br /> � s�,�N SILTS AND CLAYS — <br /> I �` �� CH Inorganic clays of high plasticiry, fat days. <br /> Z o vEi Liquid limit is greater than 50% �-- <br /> � � I QH Organic clays of high plasticity. <br /> I _ _ _ <br /> I HIGHLY ORGANIC SOILS PT Peat. _ _ <br /> � DEFIIJITION OF TERMS AND SYMBOLS <br /> Slandard Penetration T p• OUTSIDE DIAMETER SPLIT <br /> W Densit _ Resistance in Blows/Foot 1 SPOON SAMPLEF <br /> I � I Ve loose 0-4 2.4' INSIDE DIAM[TER RING SAMPLER <br /> ry 4-10 �� OR SHELBY TUBE SAMPLER <br /> Loose �030 <br /> w Medium dense 1 WATER LEVEL (DATE) <br /> � = Dense 30-50 <br /> I � I Very dense �50 Tr TORVANE READINGS, tsf <br /> —L— — <br /> I Standard Penelration Pp PENETROMETER READI�':� tsf <br /> � I Consistency Resistance in BlowslFoot DD DAY �ENSITY, Founds per cubic foot <br /> > p•2 LL LIQUID LIMIT, percent <br /> Very solt 2 4 <br /> i w Soft 4 8 PI PLASTIC INDEX <br /> = Medium stiff <br /> � I Stiff 8-16 N STANDARC PENETRATION, blows per foot <br /> i Ve stiN 16-32 <br /> I� Hard '32 <br /> UNIFIED SOIL CLASSIFICATION SYSTEIVI <br /> /� _� T@PPa MOUNTAINVIEW BUSINESS CENTER <br /> ������ LOTS 3, 4, AND 5 <br /> � ���`�:,�=-= Assaciates, Inc. <br /> �� i• .�_. •; EVERETT, WASHINGTON <br /> � ConsWtants in Geotechnical Engineering <br /> Geotogy and <br /> Environmental Earih Sciences PfOj. NO. T-5659 Date JAN 2005 FIgUfO -1 <br /> � ��a <br /> � � <br />