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UNIFIED SOIL CLASSIFICATICIN SYSTEM <br /> MAJQR DIVISIONS LTR DESCRIPTIQN MAJRR DIVISIONS LTR <br /> Gy hell-graded gravels: or gravel and DESCRIPTIEN <br /> sand mixtures, little or no fines. Inorganic ski x and very fine sands„ <br /> GRAVERL L cp Poorly-graded grovels or gravel SILTS rock fl .2, yt �r dayry free <br /> sands or clayey SAis with slight <br /> KID sand hlrtureo Utile or no fines AND Instic <br /> GRAVELLY GH Sgty gravels, graysl-saixl-sec CLAYS InOrgnnlC clays or los to medium _ <br /> S Mixtures. LL (50 CL PlastI Y, grave t clays, sandy <br /> C[a a clays, lean clays, <br /> ClIARSE Y Y Draveis, gravel-sang'-day <br /> GRED mbctures. EINE CL of % pias and organtC srit-days <br /> Sy Jell-graded sands or gravelly GRAINED ' <br /> f ] sands IrCtle or <br /> no fres, SMLSInorganic clays or for {o modlum <br /> /rNBMH pick Y, gravelly dayr, sandy 3 <br /> AND Sp Poorly^graded sands or gravelly SILTS Cl 5, lean clays. <br /> SANDY sand nlxt4c-e, tittle or no flees AN. CH Inorganic c:ays of high <br /> SDILS SM CLAYS fat clays, PlastlC9ty, <br /> Slaty sand- sand-silt mixtures, LL )SB <br /> x Grganlc clays of mwdtu-i. to hroh <br /> i iu Clayey sands, sand'-Sttt mixtures. NMI pinstlCtty. <br /> GANlC PT Peat and other highly organic lolls, <br /> . I <br /> 1 <br /> z Depth thrc ttgh sYI^:ch Sand pack <br /> 1 sampler is ,riven, <br /> Rentonite annular seal <br /> Re?ativel undls:urbed sample <br /> Neat cement annular seal <br /> Missed sample i <br /> } <br /> L <br /> r Blank PVC <br /> W Ground nater level <br /> - - observed in boring <br /> S-10 Sample number © Machine-slatted PVC <br /> I 1 <br /> PID Photolonization detector reading <br /> PVC Centralizer <br /> d r <br /> i <br /> BLOW/FT REPRESENTS THE OUMBER OF BLOWS OF p, <br /> 140-POUND HAMMER FALLING :i0 INCHES TO DRIVE <br /> f THE SAMPLER THROUGH THE LAST 3E INCHES OF AN <br /> 1 - 18 INCH PENSiRATION. <br /> DASHED LINES SEPARATING UNITS OF THE LClG <br /> ' REPRESENT APPROXIMATE BOUNDARIES ONLY, i <br /> ArTUAL BOUNDARIES MAY BE GRADUAL, LOGS <br /> REPRESENT SUBSURFACE CONDITIONS IN THE �x'I <br /> DORING AT THE TIME. OF DRILLING ONLY, <br /> UNIFIED SAIL CLASSIFICATION SYSTEM PLATE <br /> AND SYMBOL KEY <br /> ARCO Service Station Na. 89A0 p`� <br /> PROJECT N0. 30041-f 2577$ South Pattoraon Pass <br /> Treay, Callfornla <br />