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y <br /> 3:15 <br /> UNIFIED SOIL CLASSIFICATION SYSTEM <br /> r"! MAJOR DIVISIONS LTR DESCRIPTION MAJOR DIVISIONS LTR DESCRIPTION <br /> r Well—graded gravels or gravel and 11norgonic silts and very line cantle, <br /> sand mix! res. little or no fines. ML - <br /> t:1Y rack flour, silly or Clqyit line <br /> SILTS sands or clayey silts with slight <br /> Poorly—graded gravels or gravel alosticity. <br /> LrUVEL GP sand mixture. tittle or no tines. CLIA a Inorganic clays or law to medium <br /> AND <br /> LRAKLLY Silty gravers. graver—sand—silt LL <50 CL plasticity, graveliy clays, sandy <br /> SOILS Ci! I mixtures. clays, lean clays. I <br /> Clayey grovels, gravel—sand—cloy OL arganic silts and organic silt—clays <br /> COARSE mixtures. RNE of low plasticity. <br /> Ir'! GRAINED GRAINED Inorganic claysor lo. to medium <br /> SOILS Well—graded sands or gravelly SOILS <br /> � Sanas, little or no tines. lift plasticity, graverly clays, sandy <br /> Clam lean clays. <br /> SAND Poorly—graded sands or gravely SILTS LTS Ino chic clays of high plasticity, - - - <br /> AND sand mixture, little or no fines. CLAYS CH rg <br /> fat days. <br /> SANDY <br /> SoiLs 9A Shy sands, sand—silt matures. LL >50 off organ;-- clays of medium to high <br /> Plasticity. <br /> a•3 SC Clayey sands, sand—sift mixtures. HIGH SaDLSC*IIC PT Peat and other highly organic lois. <br /> Sand pack <br /> Depth through which <br /> sampler is driven. <br /> Bentonite annular seal <br /> i <br /> Relatively undisturbed Sample <br /> Neat cement annular seal <br /> .— <br /> Missed sample <br /> o <br /> �� ❑ Blank PVC <br /> V Ground water level <br /> observed in borinq <br /> Machine—slotted PVC <br /> S-10 Sample number <br /> PVC Centralizer <br /> PID Photoionizotion detector reading <br /> BLOW/FT REPRESENTS THE NUMBER OF BLOWS OF A <br /> 140—POUND HAMMER FALLING 30 INCHES TO DRIVE iE <br /> THE SAMPLER THROUGH THE LAST 12 INCHES OF AN y <br /> 18 INCH PENETRATION. j <br /> DASHED LINES SEPARATING UNITS OF THE LOG <br /> REPRESENT APPROXIMATE BOUNDARIES ONLY. <br /> =N ACTUAL BOUNDARIES MAY'BE GRADUAL. LOGS <br /> REPRESENT SUBSURFACE CONDITIONS IN THE t <br /> BORING AT THE TIME OF DRILLING ONLY. <br /> I <br /> UNIFIED SOIL. CLASSIFICATION SYSTEM PLATE <br /> T— T_ - ® !�►®® - - AND SYMSOL KEY- -.— <br /> ARCO Service Station Na. 2430 C1 <br /> 7906 North El Dorado.Street <br /> SLE NO Stockton, araElrornfa <br /> PROJECT NO. 30003-4 0003DaA <br />