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UNIFIED OIL CLASSIFI ATION SYSTEM <br /> IL Major Division Ltr. — Description Major Division Ur. Description <br /> F <br /> its and very <br /> Gw weCmM—Sand m xturrpIs � fine rock flour, <br /> IM* or no fines. UL Siky or aoyey fine Sands, <br /> a�Clayey Slice with .light <br /> P roded Crawls or Silt9 smoky <br /> ' GP Grovel—Sond mixtures, Innoungpan� of low to <br /> Gane 1 little or no fine:. Clad CL Cm Biu Sa��• �e11y <br /> Gravelly LL<50 clays. Loan Clays.� Silty <br /> Soils GM Sllty Grovels, Growl—Sand— <br /> t SlIt mixtures, <br /> OL organic Silty and organic <br /> Fine— Silt—Clays of low plasticity. <br /> Coarse— � Clayey Growl, Grovel—Sand— <br /> ' Grained Clay mixtures. Grained <br /> SO(IS Inorganic Silts, micaceous <br /> SO115 UH or diatonwceous fine <br /> wdl—gqraced Sand or �dy or silty soils, <br /> sw Crnvelly Sands, little or elastic �l�' <br /> no fines. Sifts <br /> ' and inorganic clays of high <br /> Sand Poorly—graded Sands or Clays CH plasticity, lot Clays. <br /> Sp GSands, little or LL>50 <br /> and no fines. <br /> Sandy <br /> ' Soils Organic Clays of medium <br /> SY miles;ds, Sand—Slit Oli to high plasticity, organic <br /> Sika. <br /> ' <br /> SC cagey sand., Sand—clay HighlyOr anpr Peat area ether highlyrgansa <br /> mixtures. organic es. <br /> WELL CONSTRUCTION SYMBOLS <br /> ' T Depth through which , 4'W <br /> 1 sampler is driven . Neat cement <br /> ' Relatively undisturbedSand pack <br /> sample <br /> (Monterey Sand J3) <br /> No sample recovered <br /> ■ <br /> Static water level Bentonite <br /> � <br /> observed in well/boring Blank PVC <br />' g Initial water level <br /> observed in well/boring <br /> S-10 Sample number Machine—slotted PVC <br /> 1 <br /> Note: Blows represent the number of blows of a 140—pound hammer <br /> falling 30 inch" to drive the sampler through each <br />' B inches of an 15—inch penetration. <br /> Dashed lines separating formations on the log represent approximate <br /> boundaries only. Actual boundaries may be gradual. Logs represent <br /> subsurface conditions at the boring location at the time of drilling only. <br /> 1 <br /> HORIZON ENVIRONMENTAL INC, BORM LOCA SYMBQl. KEY <br /> 1 <br />