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UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS LTR DESCRIPTION MAJOR DITISIONS LTR DESCRIPTION <br /> vall-grs"d trawls or travel and Iaoriaa" silts and very fine weals. <br /> GW sand ■i:cures. little or no fines. rock flour. silty or slaty fine <br /> �' sands or CTAT"silts nick slight <br /> tons mixture, travels or travel S� P�ticity. <br /> GRATEL Gt seed mixture, little or no fines. <br /> AVID AM <br /> GRAVELLY Silt? trawls, gravel-sand-Clay CLAPS SOILS <br /> clays or lar to ssNirs <br /> SOILS « =Urns. LL <SO CL Plasticity, gravelly Clays, sandy <br /> els lean cl <br /> Clayey gravels, gravel-sand-clay Organ" silts and organic silt-Clays <br /> COARSE GC mixtures. T= OL <br /> GRAIN CiA2N" of lar laatiei <br /> SOILS wll-graded saw or gravelly SOS Inorganis silts, nisaeeems or <br /> SV sands. little or no fines. !!s diatasesesms fins sandy or silty <br /> salla. elastic silts. <br /> AND Poorly-graded Sam" or graveily SAM Iaersaaie clays of high Plasticity, <br /> SANDT SP sense. little or no fines. CLANS CNI fat clays. <br /> Solu LL >SO <br /> SM Silty sands, sand-silt aixtures. OR Organic clays of nedira to high <br /> Plasticity. <br /> SC Clayey saw, sand-Clay sixtures. HIGHLY ORGANIC <br /> C tT Teat and other highly organic soils. <br /> I Depth through which Sand pack <br /> sampler is driven <br /> .r T <br /> ■ Relatively undisturbed sample ■ Bentonite annular seal <br /> Missed sample Neat cement annular seal <br /> Ground water level Q Blank PVC <br /> observed in boring <br /> S-t0 Sample number Machine-slotted PVC <br /> PID Photoiorszahon Detector Reading <br /> MAWITT. REPRESENTS TIM RCNOEZ OF BLOWS OF A <br /> 140-POUND RAWIER FALLIM 30 INCHES TO DRIVE <br /> .� THE SAMPLER THROUGH TBE LASS 12 INCHES OF AN <br /> iB INCH PENETRATION . <br /> DASHED LINES SEPERATING UNITS OF THE LOG <br /> REPRESENT APPROIIIRATE BOUNDARIES ONLY. <br /> ACTUAL BOUNDARIES ?W SE GRADUAL. LOGS <br /> REPRESENT SUBSURFACE CONDITIONS AT THE <br /> BORING LOCATION AT THE TIME OF DRILLING <br /> ONLY. <br /> UNIFIED SOIL CLASSIFICATION SYSTEM PLATE <br /> AND SYMBOL KEY <br /> �4�Aa~ c rarer E.,gu,.w,rr,�c.�oebyr Proposed ARCO Station Site P_rj <br /> N.E. Corner Main St. & Indiana St. <br /> PROJECT NO. 39044-1 Woodridge, California <br />