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i <br /> , <br /> ;1 UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS LTR DESCRIPTION <br /> MAJOR DIVISIONS LTR DESCRIPTION <br /> Well—graded gravels of gravel—sand mixtures,' Inorganic silts and very fine sands, <br /> ML GW little or no fines rock flour. silty or clayey fine sands <br /> or clayey silts with slight Plasticity <br /> Poorly—graded gravels or gravel—sand <br /> Gravel GP mixtures, little or no fines Silts <br /> and and Inorganic clays of low to medium <br /> ' gravelly days laetie ravel clays. sandy clays, <br /> soils LL<50 CL P gravelly y ' <br /> GM Siity gravels, gravel—sand—silt mixtures aiity clays, loon slays <br /> OL Organic milts and organic silt—clays <br /> Coarse-- GC Clayey gravels, gravel—sand—cloy mixtures Fns— of law plasticity <br /> grained grained <br /> salla Saila Inorganic silts, micaceous or diatomaceous <br /> Well—graded sand or gravelly sands, little or MH fine sandy or silty soils. Elastic silts <br /> SW no fines <br /> $uts Inorganic clays of high plasticity, <br /> Sand SP Poorly—graded sands or gravelly sands, little and CH fat clays <br /> and or no fines clays <br /> LD50 <br /> sand' organic clays of medium to high <br /> soils SM Silty sands, sand—silt mixtures OH plasticity, organic silts <br /> Highly organic frT Peat end other highly organic soile <br /> SC Clayey sands. sand—clay mixtures salla <br /> Depth through which Sand pack <br /> sampler is driven <br /> ■ Bentonite seal <br /> Relatively undisturbed <br /> sample <br /> v Neat' cement annular seal <br /> No sample recovered <br /> ® Caved native soil <br /> Static water level <br /> ' = observed in well Blank PVC <br /> ' Initiol water level © Machine—slotted PVC <br /> observed in boring <br /> S-10 Sample number OVM Organic vapor meter <br /> ' SW Contact, where approximately known <br /> �� Contact, where well known EN pp y <br /> I ML I <br /> ' BLOWS REPRESENT THE NUMBER OF BLOWS OF A 140—POUND HAMMER <br /> FALLING 30 INCHES TO DRIVE THE SAMPLER THROUGH EACH 6 INCHES <br /> OF AN 18—INCH PENETRAT}ON. <br /> ' DASHED LINES SEPARATING UNITS ON THE LOG REPRESENT APPROXIMATE <br /> BOUNDARIES ONLY, ACTUAL BOUNDARIES MAY BE GRADUAL LOGS <br /> REPRESENT SUBSURFACE CONDMONS AT THE BORING LOCATION AT THE <br /> TIME OF DRILLING ONLY. <br /> UNIFIED SOIL CLASSIFICATION SYSTEM PLATE <br /> ���� AND SYMBOL KEY <br /> 1 } A9 QUIK STOP MARKET NO. 132 <br /> 3555 WEST HAMMER LANE B- 1 <br /> PROJECT NO. F7132.34 STOCKTON, CALIFORNIA <br />