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I <br /> Earth Solutions NWLLC <br /> I SOIL CLASSIFICATION CHART <br /> MAJOR DIVISIONS SYMBOLS TYPICAL <br /> GRAPH LETTER_ DESCRIPTIONS <br /> CLEAN .b. b WELL-GRADED GRAVELS,GRAVEL- <br /> GRAVEL GRAVELS • GW SAND MIXTURES,LITTLE OR NO <br /> • <br /> I <br /> AND �e c�0 FINES <br /> GRAVELLYSOILS °O0.°3� POORLY-GRADED GRAVELS, <br /> (LITTLE OR NO FINES) )o p0o pC Gp GRAVEL-SAND MIXTURES,LITTLE <br /> a0 0 00 OR NO FINES <br /> COARSE a�' ,° 'j <br /> I GRAINED GRAVELS WITH j 3. li°C SILTY GRAVELS,GRAVEL-SAND- <br /> SOiLS MORE THAN 50% FINES o ► p GM SILT MIXTURES <br /> OF COARSE aQ is °I Q <br /> FRACTION .' :i' <br /> I <br /> RETAINED ON NO. ���'����,f, <br /> 4 SIEVE (APPRECIABLE1r, �i GC CLAYEY GRAVELS,GRAVEL-SAND- <br /> AMOUNT OF FINES) ��III',�' CLAY MIXTURES <br /> 0yl�• O <br /> I <br /> WELL-GRADED SANDS,GRAVELLY <br /> MORE THAN 50% SAND CLEAN SANDS `SW SANDS,LITTLE <br /> OF MATERIAL IS AND ,,,,, OR NO FINES, <br /> LARGER THAN SANDY NO.200 SIEVE SOILS POORLY-GRADED SANDS, <br /> SIZE (LITTLE OR NO FINES) SP GRAVELLY SAND,LITTLE OR NO <br /> FINES <br /> :,.; :: . <br /> SANDS WITH •. SILTY SANDS,SAND-SILT <br /> MORE THAN 50% <br /> OF COARSE <br /> FINES SM MIXTURES <br /> FRACTION <br /> PASSING ON N0. , /� <br /> 4 SIEVE (APPRECIABLE . ' SC CLAYEY SANDS,SAND-CLAY <br /> AMOUNT OF FINES) % ,: MIXTURES <br /> I INORGANIC SILTS AND VERY FINE <br /> ML SANDS,ROCK FLOUR,SILTY OR <br /> CLAYEY FINE SANDS OR CLAYEY <br /> SILTS WITH SLIGHT PLASTICITY <br /> SILTS INORGANIC CLAYS OF LOW TO <br /> FINE LIQUID LIMIT MEDIUM PLASTICITY,GRAVELLY <br /> GRAINED AND LESS THAN 50 / CL CLAYS,SANDY CLAYS,SILTY <br /> CLAYS CLAYS,LEAN CLAYS <br /> SOILS - <br /> OL ORGANIC SILTS AND ORGANIC <br /> SILTY CLAYS OF LOW PLASTICITY <br /> I <br /> MORE THAN 50% INORGANIC SILTS,MICACEOUS OR <br /> OF MATERIAL IS MH DIATOMACEOUS FINE SAND OR <br /> SILTY SOILS <br /> SMALLER THAN <br /> NO.200 SIEVE <br /> SIZE SILTS <br /> AND LIQUID LIMIT p <br /> CH INORGANIC CLAYS OF HIGH <br /> I <br /> CLAYS GREATER THAN 50 PLASTICITY <br /> OH ORGANIC CLAYS OF MEDIUM TO <br /> I — — HIGH PLASTICITY,ORGANIC SILTS <br /> !. .��. 2.. .� PEAT,HUMUS,SWAMP SOILS WITH <br /> HIGHLY ORGANIC SOILS PT HIGH ORGANIC CONTENTS <br /> 1 11.1f 1.1 L_ 0 <br /> DUAL SYMBOLS are used to indicate borderline soil classifications. <br /> I <br /> The discussion in the text of this report is necessary for a proper understanding of the nature <br /> of the material presented in the attached logs. <br />