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1 <br /> ' UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISION LTR DESCRIPTION MAJOR DIVISION LTR DESCRIPTION <br /> ' Gw Well—graded gravels or Inorganic silts and very <br /> grovel—sand mixtures fine sands rock flour <br /> tittle or no fines ML silty or clayey fine sands <br /> or clayey setts with slight <br /> GRAVEL Poorly—graded gravels or SILTS plasticity <br /> ' AND GP grovel—sand mixtures <br /> GRAVELLY little or no fines AND <br /> DYS Inorganic clays of low to <br /> medium plasticity gravelly <br /> SOILS GM Silty gravels gravel—sand— LL<50 GL clays sandy clays silty <br /> silt mixtures clays lean clays <br /> ' GC Clayey gravel gravel—sandOL Organic silts and organic <br /> COARSE— —clay mixtures silt—clays of !ow plasticity <br /> GRAINED FINE— <br /> ' Well—graded sand or GRAINED <br /> SOILSInorganic silts micaceous <br /> SW gravelly sands little or SOILS <br /> no fines MH or dictornaceous fine <br /> sandy or s0ty soils <br /> SAND SILTS elastic silts <br /> AND Poorly—groded sands or <br /> SANDY SP gravelly sands little or CLAD CH Inorganic clays of high <br /> SOILS no fines LLA50 Plasticity fat clays <br /> Silty sands sand—silt Organic clays of medium <br /> SM mixtures OH to high plasticity organic <br /> ' silts <br /> SC Clayey sands sand—cloy HIGHLY ORGANIC SOILS PT Peat and other highly <br /> mexkures organic soils <br /> I Depth through which ❑ Sand pack <br /> sampler is driven <br /> ■' Strctigraphic contact� <br /> Bentonite <br /> undisturbed <br /> sample <br /> p Neat cement <br /> No sample recovered <br /> ® Coved native soil Gradational contact <br /> V Static water level <br /> ' = observed In well/boring ❑ <br /> 0 Initial water level Blank PVC <br /> observed in boring <br /> ' S-10 Sample number Machine—slotted PUC — <br /> PID Photolonlzation detector Inferred contact <br /> Pea gravel <br /> ' BLOWS REPRESENT THE NUMBER OF BLOWS OF A 140—POUND HAMMER <br /> FALLING 30 INCHES TO DRIVE THE SAMPLER THROUGH EACH 5 INCHES <br /> ' OF AN 18—INCH PENETRATION <br /> GRADATIONAL AND INFERRED CONTACT LINES SEPARATING UNITS ON THE <br /> LOG REPRESENT APPROXIMATE BOUNDARIES ONLY ACTUAL BOUNDARIES <br /> MAY BE GRADUAL LOGS REPRESENT SUBSURFACE CONDITIONS AT THE <br /> ' BORING LOCATION AT THE TIME OF DRILLING ONLY <br /> �AW&NM UNIFIED SOIL CLASSIFICATION SYSTEM <br /> AND SYMBOL KEY <br /> Working to Restore Nature BJ) COMPANY, INC <br /> ' <br /> PROJECT 150066.01 2431 EAST MARIPOSA ROAD <br /> STOCKTON, CALIFORNIA <br />