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i pus <br /> UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS LTR DESCRIPTION MAJOR DIVISIONS LTR DESCRIPTION <br /> GW Well—graded gravels or gravel and Inorganic silts and very fine sands <br /> sand mixtures, little or no fines rock flour silty or clayey fine <br /> Poorly—graded gravels or gravel SILTS sands or clayey stIts with slightML <br /> GRAVEL GP sand mixture little or no fines AND plasticlt <br /> N <br /> GRAVELLYSiltyCLAYS Inorgamc clays or low to medium <br /> SOILS GM mixt guresravels, gravel—sand—slit LL <50 CL plast=Clty gravelly clays sandy <br /> mixtclays lean days <br /> COARSE GC Clayey gravels, gravel—sand—cioy Organic sats and organic silt—clays <br /> GRAINED mixtures FINE OL of low plasticity <br /> SOILS Well—graded sands or gravel! GRAINED <br /> sands, little or no fines y SOILS Inorganic clays or low to medium <br /> MH plasticity, gravelly clays sandy <br /> SAND Poorly—graded sands or gravelly SILTS clays lean clays <br /> AND SP sand mixture, little or no fines AND Inorganic clays of high plasticity <br /> SANDY CLAYS �H fat clays <br /> SOILS SM Silty sands, sand—silt mixtures LL >50 <br /> OH Organic clays of medium to high <br /> plasticity <br /> SOI <br /> SC Clayey sands, sand—silt mixtures HIGHLY -ORGANIC <br /> GANIC PT Peat and other highly organic soils <br /> ❑ Sand pack <br /> I Depth through which <br /> I sampler Is driven <br /> ■ Bentonite annular seal <br /> Relatively undisturbed sample <br /> ❑ Neat cement annular seal <br /> Missed sample <br /> Blank PVC <br /> V Ground water level <br /> observed In boring <br /> © Machine—slotted PVC <br /> S-10 Sample number <br /> PID Photolonlzatlon detector reading PVC Centralizer <br /> BLOW/FT REPRESENTS THE NUMBER OF BLOWS OF A <br /> 140—POUND HAMMER FALLING 30 INCHES TO DRIVE <br /> THE SAMPLER THROUGH THE LAST 12 INCHES OF AN <br /> 18 INCH PENETRATION <br /> DASHED LINES SEPARATING UNITS OF THE LOG <br /> REPRESENT APPROXIMATE BOUNDARIES ONLY <br /> ACTUAL BOUNDARIES MAY BE GRADUAL LOGS <br /> REPRESENT SUBSURFACE CONDITIONS IN THE <br /> BORING AT THE TIME OF DRILLING ONLY <br /> UNIFIED SOIL CLASSIFICATION SYSTEM p <br /> -.�-_��` AND SYMBOL KEY LATE <br /> SSAW/7AP=U BP 00 Facility No. 11191 <br /> F <br /> IL <br /> E ND 1469 East Hammer Lane 3 <br /> PROJECT NO. 123013 3013A4A Stockton, California <br />