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g �Y7,.gp-. _ : WINq Vat F- z P 4�x GRAPHIC LETTER TYPICAL DESCRIPTIONS MAJOROIVISIONS SYMBOL SYMBOL WELL GRAOEO GRAVELS,GRAVEL. r . GW SANG MIXTURES,LITTLE OR NO Lw d=d p FINES GRAVEL ,• 40 ANO CLEANGRAVELS GRAVELLY •j;;•;6— POORLY.GRAOED GRAY ELS, SOILS ILITTLE OR NO y �;.... GP GRAVEL-SAND MIXTURES.LITTLE FiNE51 •��+:0 CR NO FINES COARSE CHAINED SILTY GRAY ELS,GRAVEL SAND. SOILS GM SILT MIXTURES GRAVELS WITH FINES MORE THAN 50% APPR ELIA BLE DF COARSE FRAC, AMOUNT OF FINEST TION RETAINEO CLAYEY GRAY ELS,tRAVELSANO ON N6.4SltVE GC CLAY MIXTUFlES • o • we,,-GRAOEDSANOS,GRAVELLY •••i0� syy SAtj65,LITTLE OR NO F I N E5 CLEANSANO ••o SAND • F AND (LITTLE OR NO 1 SANDY FIN ESI POORLY GRADEOSANDS,GRAVEL - SOILS SP LY SANDS,LITTLE OR NO FINES MORE THAN 50% OF MATERIAL IS LARGER THAN NO, SILTY SANDS,$ANDSILY 700 SIEVE SIZE SM MIXTURES SANDS WITH FINES "oil I.THAN 50% _ TION ARSE fAgINGFRAC- AMOUNT OFFINESCLAYEY SANDS.SANOCLAY N0 PA55tNG NO.4SIEVE SC MIxYURES I IN SILTS AND VERY FINE ML SANDS,ROCKFLOUR,SILTY ON CLAYEY FINE SANDS OR CLAYEY $ILTSWITHSLIGHTPLASTICITY — INORGANIC CLAYS OF LOWY TO MEOIuM PLASTICITY,GRAVELLY FINE SILTS LIOWD LIMIT CL CLAYS,SANDY CLAYS.SILTY GRAINED AND LESSTHAN50 CLAYS,LEANCLAY5 SOILS CLAYS f II I I ORGANIC SILTS ANDORGANIC - I I I I I I II SILTY CLAYS OF LOW PLASTICITY I OL . (IIIIIIII� - Iiljllll! INORGANIC SILTS,MICACEOUS OR VIATOMACEOUS FINE SAND OR MH SILTY SOILS INORGANIC CLAYS OF HIGH MORE THAN 50% SILTS LIQUID LIMIT CH PLASTICITY,FAT CLAYS OF MAT ERIAL ISAND GREATER THAN 50 SMALLER THAN NO. CLAYS 700 SI EVE 512E ORGANIC CLAYS OF MEDIUM TO OH HIGH PLASTICITY,ORGANIC SILTS LPEAT,HUMUS.SWAMP SOILS WITH PT HIGH ORGANIC CONTENTS HIGHLY ORGANIC SOILS NOTE: DUAL SYMBOLS ARE USED TO INDICATE BORDERLINE SOIL CLASSIFICATIONS UNIFIED SOIL-CLASSIFICATION-SYST ----ROGER FOOTT ASSOCIATES, INC. PLATE 3 . alEtslfFm�l{�IIAIFI