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Earth Solutions NWLLC <br /> SOIL CLASSIFICATION CHART <br /> MAJOR DIVISIONS SYMBOLS TYPICAL <br /> GRAPH LETTER DESCRIPTIONS <br /> CLEAN WELL-GRADED GRAVELS,GRAVEL- <br /> GRAVEL GRAVELS ��•�� GW FINES ND MIXTURES,LITTLE OR NO <br /> AND <br /> GRAVELLY ,& ,Q° POORLY-GRADED GRAVELS, <br /> SOILS (LITTLE OR NO FINES) o OQo C GP GRAVEL-SAND MIXTURES,LITTLE <br /> )00000 OR NO FINES <br /> COARSE ' ° <br /> GRAINED GRAVELS WITH ° SILTY GRAVELS,GRAVEL-SAND- <br /> SOILS MORE THAN 50% FINES o D GM SILT MIXTURES <br /> OF COARSE Q a <br /> FRACTION <br /> RETAINED ON NO. <br /> 4 SIEVE (APPRECIABLE GC CLAYEY GRAVELS,GRAVEL-SAND- <br /> AMOUNT OF FINES) CLAY MIXTURES <br /> CLEAN SANDS SW WELL-GRADED SANDS,GRAVELLY <br /> MORE THAN 50% SAND SANDS,LITTLE OR NO FINES <br /> OF MATERIAL IS AND <br /> LARGER THAN SANDY <br /> NO.200 SIEVE SOILS POORLY-GRADED SANDS, <br /> SIZE (LITTLE OR NO FINES) SP GRAVELLY SAND,LITTLE OR NO <br /> FINES <br /> SANDS WITH SILTY SANDS,SAND-SILT <br /> MORE THAN 50% FINES SM MIXTURES <br /> OF COARSE <br /> FRACTION <br /> PASSING ON NO. <br /> 4 SIEVE (APPRECIABLE S`+ CLAYEY SANDS,SAND-CLAY <br /> AMOUNT OF FINES) MIXTURES <br /> 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 /> ORGANIC SILTS AND ORGANIC OL <br /> SILTY CLAYS OF LOW PLASTICITY <br /> MORE THAN 50% INORGANIC SILTS,MICACEOUS OR <br /> OF MATERIAL IS MH DIATOMACEOUS FINE SAND OR <br /> SMALLER THAN SILTY SOILS <br /> NO.200 SIEVE <br /> SIZE SILTS <br /> LIQUID LIMIT INORGANIC CLAYS OF HIGH <br /> AND <br /> CLAYS GREATER THAN 50 CH PLASTICITY <br /> OH ORGANIC CLAYS OF MEDIUM TO <br /> HIGH PLASTICITY.ORGANIC SILTS <br /> HIGHLY ORGANIC SOILS PT PEAT,HUMUS,SWAMP SOILS WITH <br /> HIGH ORGANIC CONTENTS <br /> DUAL SYMBOLS are used to indicate borderline soil classifications. <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 />