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I <br /> UNIFIED SOIL CLASSIFICATION YSTEM <br />' Major Division Ltr Description <br /> Mayor Division Ur Description <br /> w.0—groded Gravels or hNNionle Silts and very <br /> CW Gran[—Sand mixtures. tine Sands, rock flour <br /> little or no tHfes UL <br /> nds <br /> or C y Silts with or Clayey fine alight <br />' Poorly ^aced Crawls or Silts <br /> CA Gravid—Sand mixtures, an� ",anic Clays of law to <br /> Gravel <br /> I little or no fines CIOd CL MedClaium <br /> �nasticity Gravelly <br /> Gravelly Gravels, LL<50 Ckr e. LoanClayys lays s,lty <br /> Soils cls Sdty nGrovel—Sand— <br />' CL Organic Silty and Organic <br /> Fine- <br /> Silt—clays of low plasticity <br /> Coarse- ccClayeyGrowl, Grovel-sand- Fine- <br /> Grained Clay mixtures <br />' <br /> Soils Soils Inorganic Slits, micaceos <br /> or dlu <br /> otonwceous fine <br /> Well—gqraded Sand or Sand/ or Silty 00111 <br /> SW Grovslif Sands. Iktle or elastic Slits <br /> no fines Silts <br />' <br /> and 1"Jrqonle Cloys of high <br /> Sand GravelGravelly Sons Sand• or Clays CH plot Iclty fat Clays <br /> Sp no <br /> Sands, tittle or LL>50 <br /> and no flees <br /> Sandy <br /> SoilsOrganic Clays of medoum <br />' SW Silty Sands, Sand—Sdt OH to high plasticity organic <br /> mixtures Silts <br /> Highly <br />' SC Clayey mixtures Soils <br /> Sand—Clay Organic pT peat and other highly <br /> Soils organic lolls <br /> WELL CONSTRUCTION SYMBOLS <br /> I Depth through which <br />' sampler is driven Neat cement <br /> S� <br /> Relatively ely undisturbed <br /> p Sand pack <br />' (Monterey Sand #3) <br /> No sample recovered <br /> ■ Bentonite <br />' = Static water level <br /> observed In well/boring ® Blank PVC <br />' s Initial water level <br /> observed in well/boring <br /> S-10 Sample number ® Machine-slotted PVC <br /> 1 Note Blows represent the number of blows of a 140—pound hammer <br /> falling 30 Inches to drive the sampler through each <br /> 6 inches of an 16—Inch penetration <br />' Dashed lines seporoting formations on the log represent approximate <br /> boundaries only Actual boundaries may be gradual togs re resent <br /> subsurface conditions at the boring location at the time of drilling only <br /> 1 <br /> HORIZON ENVIRONMENT INC. r <br /> e BORM LOG SYMBOL KEY <br /> 1 <br />