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' SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISION GROUP LETTER GROUP NAME <br /> SYMBOL SYMBOL <br /> • <br /> GRAVEL WITH .k4j;& GW WELL-GRADED GRAVEL with or without sand <br /> <_5%FINES ° <br /> 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%FINES o Q° o GP-GM POORLY GRADED GRAVEL WITH SILT <br /> NO.4 SIEVE <br /> and with or without sand <br /> GP-GC POORLY GRADED GRAVEL WITH CLAY <br /> and with or without sand <br /> 0 <br /> COARSE GRAVEL WITH o GM SILTY GRAVEL and with or without sand <br /> GRAINED _>15%FINES <br /> GC CLAYEY GRAVEL and with or without sand <br /> SOILS <br /> WITH <br /> LESS THAN SW WELL-GRADED SAND with or without gravel <br /> SAND WITH <br /> 50%FINES <5%FINES <br /> SP POORLY GRADED SAND with or without gravel <br /> 1 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 /> NO.4 SIEVE' SP-SC POORLY GRADED SAND WITH CLAY with or without gravel <br /> SAND WITH SM SILTY SAND with or without gravel <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 <50 and with or without sand or gravel <br /> — OL ORGANIC SILT with low plasticity <br /> GRAINED SILT — <br /> SOILS =_— and with or without sand or gravel <br /> AND <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: 5/24120061ANALYST:Olesone FIGURE: <br /> =- == D-1 <br /> From Science to Solutions SHEET 2 OF 2 <br />