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EXHiBiT B <br />UNIFlED 301E CLASSIFICATION AND SYMBOL CHART <br /> COARSE-GF2AIt~D SOILS. <br />(more than 50% of material is larger ttran No. 200 sieve stze.) <br /> Bean Gravels than 5% fines <br /> ,~ Yyep-graded gravels. gravel-sand <br />GW <br />' <br />GRAt~LS r <br />mbdures, little or rw fines <br />. More than 50% 'O GP PoorlY~raded gravels, gravel-sand <br />of coarse ~a mbdures, little or no tines <br />iraWon lamer <br />than No. 4 Gravels with fines ore tfran 12% fines <br />sieve size GM Silty gravels, gravel-sand-silt mbdures <br /> ~ q~Y gravels, grave!-sand-clay <br /> mixtures <br /> Bean Sands Less than 5% fines <br /> =::: SW ~ Weil-graded sands. gravelly sands, <br />SANDS - - - tittle or no fines <br />:.: <br />- <br />5096 or more . <br />=:~ .= SP PoodY 9taded sands, gravelly sands, <br />.: ~coaae :;: ~ little or no fines <br />'~ fraWorrsmaller Sands with fines More than 12% fines <br />than No. 4 <br />sieve ske SM Silly sands, sand-sift mixtures <br /> SC gayey sands, sand-day mixtures <br />FINE-GRAINED SOILS <br />(50% ar more of material is smaller than No. 200 sieve ske.) <br />Irwrgan(c s8ts and very fine sands, rock <br />SILTS ML flour, silly of clayey fine sands or clayey <br />,AND sills With slight pfastldly <br />Ix.AYS Inorgank days of knv to medium <br />Liquid limit ~- P~db: 9re~N days sandy days <br />less than dftY ~. lean days <br />50% <br /> - OL ~ ni <br />~ and organic nifty days of <br />c <br /> Pk <br />s <br /> Inorgank sifts. micaceous or <br /> MH diatomaceous fine sandy or slily soils, <br />SILTS <br />AND elasfic silts <br />CLAYS ~ i <br />rxxgank days ~ high piastldty, fat <br />liquid Emit ~ <br />50% <br />or greater <br />` <br />~ Organic days of medium to high <br /> P~d4: organk sifts <br />HIGHLY '~' <br />ORGANIC . •- PT Peat and other highly organk soils <br />SOILS ,; <br />UNIFiED SOIL <br />CLASSIFICATION SYSTEM <br /> LABORATORY CLASSIFiCAT10N CRITERIA <br /> <br /> <br />GW Dso D30 <br />Cu = 9rceter than 4: C between 1 acrd 3 <br />D <br />c = D <br />x <br /> 10 <br />10 <br />60 <br />GP Not rtx:eting aq gradation requirements for GW <br />GM Atterberg Ntrrifs bebw A <br /> line or t?t. less than 4 Above "A• Ane with P.1. between <br /> 4 and T are borderline cases <br />~ Afterberg fintits above A` requiring use of dual symbols <br /> Nne with P.1, greater than T <br /> <br />~ D <br />Cu = D~ greater than 4: Cc = . D30 between 7 and 3 <br />to ~ <br />xD <br /> ~o <br />so <br />SP Not meeting all gradation requirements for GW <br />~ Atterberg limits below A <br />tlne or P i <br />l <br />th <br />d ~~ Ping fn shaded zone <br /> . <br />ess <br />an Wtlh P.I. between 4 and T are <br />;~ Atterberg fimits.above •A` borckrfine cases requiring use <br /> Bne with P.I. greater than of dual symbols. <br />Ddermine percentages of sand and gravel from gram-size curve. Depending <br />on percentage of fines (fraction smaller than Ido. 200 sieve size). <br />eoarse~raered sets are dassif~ed as fatbws: <br />less ft-an 5 percent ........................... GYV, GP, SW. SP <br />More than 12 percent ............................ GM. GC, SM, SC <br />5 b 12 peroeM ............... Borderline cases retprairg dual symbols <br />.,,. <br />50. <br /> <br /> qi <br />~ <br /> A UNE; <br />~ P i = 073 -20 <br /> q_ MH &OH <br />~. <br /> <br />10 <br /> <br /> - ~` ML80L <br />u <br />