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MAJOR DIVISIONS S`.MBOL5 TYPICAL. SOIL DESCRIPTIONS <br /> GW Well graded greralt or gravel-send m6ovrsa,hills d to fines <br /> GRAV L <br /> '1 w <br /> . Gp. Poorly graded gravels or pray.!-sand mislarte, hl!!a or ae fins <br /> n y> <br /> Gera Ihan 1/2 of <br /> QO eoersa haation Y GM Slllr;r°rei6,gravel-son6-sill:neslurre <br /> qN na 4 slava sine O I <br /> z^ GC ;;d, acyey Ire-alt. prove!-send-clay mldurss <br /> cc <br /> O� SW :`,'; Well graded sands or gravelly sands,little or no fines <br /> WN �?} <br /> y� AN <br /> e � SP Poorly graded Bawds a gravelly sends, !Mlle or rm lines <br /> V 1166, 'Pa <br /> 1/2 of 7 <br /> eesrs° fraction< <br /> `o SM _ Silty Bends, sand-sill miaturst <br /> g no.4 sieve sits) <br /> Sc Ciaysy Barras, sand-clay mitluras <br /> ML Inorganic silts and vary lens sands,rockfl°vr, Illly air clayey <br /> a <br /> SILTS f1 CLAYS fine sends or clayey sills with slight plasticily <br /> J" CL Inorganic clays of low la medium plasticity gravelly clays, <br /> 00 LL(50 sandy clays, silly clays. Itan days <br /> y tV <br /> 0L Organic tilts and organic silly clays of law plaBlicily <br /> v <br /> 4 w li�l� [norganie sins, mieaeeoul or diatomaceous fine candy a silly soils, <br /> i v° S!!TS a CL AY5 MH <br /> III elastic 41111 <br /> w�! <br /> 1 x n OH Inorganic clays of high plasticily, fat clays <br /> } o _ OH Organic clays of medium to high plaeficily, organic silly clays, <br /> z orgaeit tins <br /> HIGHLY ORGANIC 501LS Pt Peal and other highly organic"it <br /> CLASSIFICATION CHART- <br /> funiNad Sod Classification Sysleml - <br /> an <br /> i <br /> CLASSIFICATIOh RANGE OF GRAIN SIZES <br /> LES.SlanCard Grain Siza <br /> Sidve Size in Millimeters W elf <br /> BOULDERS Ahcve 12' Above 305 = <br /> COBBLES 12' to r 305 to 76.2 °0 <br /> u <br /> GRAVEL 3" to No.476.2 to 4.76 i !0 CL Cil <br /> e <br /> coarse 3'is W 76.2 1°19,1 m YN <br /> lime 3N"to Ne.4 19,1 194.76 1(LSOL <br /> °a w m ao a° so w <br /> SAND Na 4 to Nat 4.76 to� to se so We <br /> Lloulo LI141T <br /> y coarse NA 4 so Mato 4.76102-00 <br /> (nldileln..___ .._ 110leN440 -200fa0420 PLASTI <br /> CITY...CKART.... -- <br /> f1fle N°,40 to Nazoo 042011 Q674 <br /> SILT 13 CLAY 6slow Na 200 13tiow 0.074 <br /> GRAIN SIZE CHART <br /> METHOD OF SOIL CLASSIFICATION <br /> Emc®n <br />