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• <br /> UNIFIED SOIL CLASSIFICATION S 'r5 T EM <br /> • • MAJOR DIVISIONS LTR DESCRIPTION MAJOR DIVISIONS LTR DESCRIPTION <br /> GW Wetl-graded gravels or gravel and Inorganic silts and very fine sands <br /> sand mixtures little or no fines ML rock flour silty or clovey fine <br /> Poorly—graded graver or gravel I SILTS sands or clayey sats with slight <br /> AND GRAVEL GP sand mixture Irttle or no fines AND Plasticity <br /> GRAVELLY CLAYS Inordan,c cd2rs or low <br /> 54(y gravels gravel to medium <br /> tures -sono—silt <br /> SOILS GM mixLL <50 CL clavSClennyraOvsy Cloys sandy <br /> i l <br /> COARSE GC Clayey gravels gravel—sand—clav I I CILiraan,C silts and oraanic s It—uays <br /> GRAINED mixtures FINE or low Dlast c ty <br /> SOILS Well-graded sands or gravelly GRAINED Inorganic as <br /> Sw yor sow to medium <br /> santls little or no fines SOILS <br /> MH Plasticity gravelly Clays sandy <br /> SAND Poorly—graded sands or gravelly SILTS clays lean cloys <br /> AND SP sand mixture little or no fines AND Inorganic Goys or n+gn plasticity <br /> SANDY CLAYS CH tat clays <br /> SOILS Sm S.0ty sonas sand-silt mixtures LL >50 <br />�• � OH Organic cloys of medium to nigh <br /> Dlostrcity <br /> Sc Clayey sands sond—slit mixtures I HIGHLY ORGANIC <br /> SOILS PT pea crd other highly oraonlc sods <br /> Depth through which <br /> C Sant? :JQ4{. <br /> I sampler Is arlven <br /> Bentonite -innulor sect <br /> Relatively undisturbed sample <br /> i <br />• ❑ Neat Cement annular seal <br /> Missed sample <br /> El Blank F`/C <br /> Ground water level <br /> observea In bormc <br /> • J <br /> Mac. lne-sloT+ed QVC <br /> 5-10 Semple rumoer <br /> i <br /> ❑� h -er -::l zer <br /> PID Photolonlzatlon detector reaalna <br /> • <br /> BLOW/FT PEZ-'RESENTS THE NUMBER OF FLOWS - <br /> 40-POUND rIAMMER FALLING �O INCHES TO DRIVE <br /> TrIE SAMPLER THROUGH THE LAST 12 INCHES OF uI ! <br /> IS INCH 2�EINETRATION <br /> DASHED LINES SEPARATING UNITS OF THE t_OG <br /> REPRESENT —PPROXIMATE 2-01UNDARIES ONLY <br /> ACTUAL EOUNDARIES MAY BE GRADUAL LOGS <br /> REPRESENT SUBSURFACE CONDITIONS IN THE <br /> BORING AT THE TIME OF DRILLING ONLY <br />• _--_ UNIFIED SOIL CLASSIFICATION SYSTEM PLATE <br /> • `=!= ' AND SYMBOL KEY I <br /> A. teichert & Son <br /> PROJECT NO. 123009 FILE NO <br /> 29099 South MaCarthur A <br /> 30(}9A9A Tracy, California <br /> i• <br />