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EXHIBIT B <br /> ~ ~ UNIFIED SOIL <br /> t CLASSIFICATION &YSTEM <br /> l <br /> f ~ • - <br /> UNIFlED SOIL CLASSIFICATION AND SYMBOL CHART LABORATORY CtASSIFICATiON CRRERIA <br /> c~ARSE-GRAINED SOIts <br /> (maa than 50% a material k leiger than No. 200 skve size.) <br /> Clean Gravels rien s% Anes <br /> GYV yy~.~aded grgy~. gravekand GVII Cu = D~ greater than 4: Cc = D D <br /> D betwaon 1 and 3 <br /> GR/1t~ls :r mbduas, Ntlls tx ra toes 10 ~ t0 60 <br /> Mora than 50% ~ G,p Poorly-graded g~'e~. gravel-sand <br /> f a coarse mbduros,llale or no Ines GP Not meeting aN gradation regrr<rertrents for GiM <br /> kadbfl ~ Gravels vNth ikles than i2% ihtes <br /> Mran No. 4 <br /> sbve size GM Slay gtavals, g+avd~and-silt m6duras GM re NmNs bebw'A <br /> f Nne a P.1. less tlran 4 4 and 7 are bo~dedine cases n <br /> ` ~ gayeY ararels. gravalaand-day ~ Attnrherp Nmks atwve'A' requlrNg ute actual symbols <br /> ~ mbcbxes Noe vvNh P.I. gn~ter thar? <br /> f ' Clan Sands Less than s% fines <br /> ' tNeN•,gradad graypNY sands, Cu = greater than 4: Cc . D~ hehveen 1 and 3 <br /> SW Ntlb or no ikres S1N X10 ~tO x60 <br /> SANDS <br /> 50% or more ~ Sp POOdY t7raded sands. gravely sands. <br /> a N11te or no fines SP Not meetlng aN gradaton raqukements for GW <br /> iractbtrsrtraNer Sands MAth tkres than 12% fines <br /> than No. 4 <br /> SNIy sands. sand-sNt mtxtwes ~ Nmks below A <br /> sieve s~ ~ NP <br /> . less than 4 vvahP arc <br /> Atterberg Ames above A• borderline eases requlrktg use <br /> SC Clayey sands. sand-day mixtures 'SC Nne wNh P.1. greater: than a dual cymbots. <br /> FprE-GRAINED SOILS <br /> (50% or more d material k srrraNer tl?an No. 200 abve siae.) P Ott <br /> ~ <br /> ~ ~ s'm~e). <br /> InorOanic sNts and very tine sands, rock coarse-gwired soNs are classified as toNows <br /> SN.TS tkrur, sNty a clayey floe sands w ctaryey less N,«.5 peroent Gw, cf; SNI. SP <br /> µD sNls MAtlt sNght pMslfdly Mora tlran 12 psroeM GM. GG Sill SC <br /> f CI.AIrs krorgarac days a ioMr b rrtedhun s to f2 oereenf tiwderwra eases roquiirig direr symbols <br /> cx. vb. t1?a~N ~Y . <br /> ~ <br /> ~ ~Y ~Ys. ~ ~ PLASTICITY CHART <br /> 50% <br /> tx °O ~cYand organic slay days a ~ <br /> <br /> • Inoryarric sNls. rNesaous ar ~ 50 <br /> MH ~ floe lardy a sNty salts, ~ ~ <br /> I SILTS elastk sNls ~ A UNE; <br /> ~ ~ PI = 073 -20 <br /> Lq~ <br /> ~ ~ dalnoroanic dayt ~ N~ plas6dty fat ~ CL <br /> 50% ~ <br /> or ~r Organic days a me~urn to high 10 <br /> ~ plastkky, organic sN1s ~ ML60L <br /> HIGHL'~f u 00 ~ 10. 20 30 40 50 BO 70 a0 g0 100 <br /> ORt3ANIC ~ { PT Peat and otlier higNy organk: soNs ~ ~ <br /> SOILS ~ <br /> I <br /> <br />