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SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISION GROUP LETTER GROUP NAME <br /> SYMBOL SYMBOL <br /> • <br /> lm <br /> GRAVEL WITH <br /> .k .. GW WELL-GRADED GRAVEL with or without sand <br /> 5 5%FINES o C ° o GP POORLY GRADED GRAVEL with or without sand <br /> GRAVEL WITH .'• . GW-GM WELL-GRADED GRAVEL WITH SILT <br /> MORE THAN and with or without sand <br /> 50%OF GW GC WELL-GRADED GRAVEL WITH CLAY <br /> COARSE GRAVEL WITH and with or without sand <br /> FRACTION BETWEEN 5% <br /> RETAINED ON AND 15%FINESi. <br /> Qa o GP-GM POORLY GRADED GRAVEL WITH SILT <br /> and with or without sand <br /> NO.4 SIEVE <br /> o Q� GP-GC POORLY GRADED GRAVEL WITH CLAY <br /> and with or without sand <br /> o 0 GM SILTY GRAVEL and with or without sand <br /> COARSE GRAVEL WITH <br /> GRAINED 2 15%FINES <br /> GC CLAYEY GRAVEL and with or without sand <br /> SOILS VIA <br /> WITH SW WELL-GRADED SAND with or without gravel <br /> LESS THAN SAND WITH <br /> 50%FINES s 5%FINES 777 <br /> SP POORLY GRADED SAND with or without gravel <br /> SAND WITH SW-SM WELL-GRADED SAND WITH SILT with or without gravel <br /> MORE THAN <br /> 50%OF SAND WITH SW-SC WELL-GRADED SAND WITH CLAY with or without gravel <br /> COARSE BETWEEN 5% <br /> GRACTION AND 15%FINES SP-SM POORLY GRADED SAND WITH SILT with or without gravel <br /> PASSING <br /> N0.4 SIEVE SP-SC POORLY GRADED SAND WITH CLAY with or without gravel <br /> SM SILTY SAND with or without gravel <br /> SAND WITH <br /> > <br /> 15%FINES <br /> SC CLAYEY SAND with or without gravel <br /> ML SILT with low plasticity <br /> and with or without sand or gravel <br /> LIQUID LIMIT CL LEAN CLAY with low plasticity <br /> FINE <S0 _ _ and with or without sand or gravel <br /> GRAINED =_= OL ORGANIC SILT with low plasticity <br /> SOILS SILT =__AND and with or without sand or gravel <br /> WITH CLAY MH ELASTIC SILT with low plasticity <br /> MORE THAN and with or without sand or gravel <br /> 50%FINES LIQUID LIMIT FAT CLAY with low plasticity <br /> >50 CH and with or without sand or gravel <br /> OH ORGANIC SILT OR CLAY with low plasticity <br /> and with or without sand or gravel <br /> HIGHLY ORGANIC SOILS PT PEAT <br /> LEGEND <br /> KEY TO LOGS AND SOIL <br /> CLASSIFICATION <br /> DATE: 5/24/2006 1 ANALYST:Olesone FIGURE: <br /> D-2 <br /> .rW- Cl Scienee A-W-tions <br /> ..,.....:.;..,..:. Intemational Corpora[)•,, <br /> SHEET 2 OF 2 <br />