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UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS TYPICAL NAMES <br /> WELL-GRADED GRAVELS.GRAVEL-SAND MIXTURES, <br /> CLEAN GRAVELS WITH GW r; LITTLE OR No FNES <br /> GRAVELS LITTLE OR NO FINES <br /> GP POORLY[3RADED GRAVELS.GRAVEL-SAND MI)MPES <br /> MORE THAN HALF e�• <br /> COARSE FRACTION IS <br /> O¢ LARGER THAN No.4 GM SILTY GRAVELS.GRAVEL-SANDsIxr <br /> >LT MUREB <br /> p�O SIEVE SIZE GRAVELS WITH OVER <br /> W� 1294 FINES <br /> Gc <br /> CLAYEY GRAVELS,GRAVEL-SAND-CI-AY MIXTUFES <br /> S2N <br /> CC ti iitir WELL43RADED SANDS,GRAVELLY SANDS. <br /> CLEAN SANDS WITH SWii�'+'s: LrrnE OR NO FIFES <br /> •5%4�5 <br /> W SANDS LITTLE OR NO FINES <br /> POORLY-GRADED SANDS,GRAVELLY SANDS.LITTLE <br /> cc SP OR NOFPES <br /> O W MORE THAN HALF <br /> 05 COARSE FRACTION IS SM •; SILTY SANDS.SAND-SILT MDnXIRES <br /> SMALLER THAN No.4 SANDS WITH OVER <br /> SIEVE SIZE 12%FINES <br /> ' SC CLAYEY SANDS,SAND<"' Y MIXTURES <br /> WORGANIC SILTS AND VERY FINE SANDS,ROCK FLOUR. <br /> i, ML1111111 SILTY OR CLAYEYFM SANDS OR CLAYEY SILTS WITH <br /> SILTS AND CLAYS INORGANIC CLAYS OF LOW-TO MEDRJM-PLASTICr€Y. <br /> CL GRAVELLY CLAYS,SANDY CLAYS,SILTY CLAYS, <br /> LIQUID LIMIT LESS THAN 60 LEANCLAYS <br /> WCITY <br /> N[y OL I LOpamt%STILTSAND ORGANIC sn-TY CLAYS cw <br /> z�N <br /> i MH W R SkiILTS.MI SOUS OR DIATOMACEOUS FM <br /> IX: LS <br /> ZSILTS AND CLAYS CH WORGANIC CLAYS OF HXW PLASTICITY,FAT CLAYS <br /> LL 1! LIQUID LIMB GREATER THAN 60 <br /> r r r ORGANIC CLAYS OF MEDIl1A&TO HIGH•PIASTICITY. <br />' O OHr r r ORGANIC SILTS <br /> � <br /> HIGHLY ORGANIC SOILS Pt PIAN,.SWMP SOILS WTM HIGH OMMIC <br /> SYMBOLS AND NOTES <br /> ISAMPLE INTERVAL ppm a parts per n111iL m(mg&o <br />' g Ppb.Paris per billion(lam) <br /> SAMPLE.NOT RECOVERED ND■not detected at detecllon Ilrrft staled In official Laboratory reports <br /> Cal a oombustible gas k katgr <br /> SENTONME OVA a orgaNc vapor analyzer <br />' PID a photolonizatlon detec br <br /> LEL a tower axploslvm Iml! <br /> CONCRETE TPN a total petrolearm hydrocsrbom <br /> TRPH a total reooverable petrotearn hydrocarbons <br /> v v GROUT NA a not applicable <br /> FILTER SAND PACK <br /> STATIC WATER LEVEL <br /> Sz WATER LEVEL.ENCOUNTERED <br /> — WHEN DRILLING <br /> - AEOSCIENCE KEY TO BORING LOG <br /> uvermom efiffar"Ta - 1 . - <br /> BDFI KEY 3.5 P"VAMUS]131 Dill YW <br /> ... <br />