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• UNIFIED SOIL CLASSIFICATION SYSTEM MAJOR DIVISIONS GROUP GROUP NAME SYMBOL CLEAN GW WELL-GRADED,FINE TO COARSE GRAVEL COARSE - GRAVEL GRAVEL GP POORLY-GRADED GRAVEL GRAINED MORE THAN 50% GRAVEL OF COARSE FRACTION GM SILTY GRAVEL RETAINED ON SOILS NO.4 SIEVE WITH FINES GC CLAYEY GRAVEL SAND CLEAN SW WELL-GRADED SAND, FINE TO COARSE SAND SAND SP POORLY GRADED SAND MORE THAN 50% RETAINED ON MORE THAN 50% NO.200 SIEVE OF COARSE FRACTION SAND SM SILTY SAND PASSES NO.4 SIEVE WITH FINES SC CLAYEY SAND FINE - SILT AND CLAY ML SILT INORGANIC GRAINED LIQUID LIMIT CL CLAY LESS THAN 50% SOILS ORGANIC OL ORGANIC SILT,ORGANIC CLAY SILT AND CLAY MH SILT OF HIGH PLASTICITY,ELASTIC SILT MORE THAN 50% INORGANIC PASSES LIQUID LIMIT CH CLAY OF HIGH PLASTICITY,FAT CLAY NO.200 SIEVE 50%OR MORE 3 ORGANIC OH ORGANIC CLAY,ORGANIC SILT 0 x m HIGHLY ORGANIC SOILS PT PEAT o NOTES: IL i1) Field classification is based on visual SOIL MOISTURE MODIFIERS: examination of soil in general accordance with ASTM D 2488-93. Dry-Absence of moisture,dusty,dry to 0 the touch 2) Soil classification using laboratory tests - is based on ASTM D 2488-93. Moist-Damp,but no visible water. d rii .c Wet-Visible free water or saturated, 3) Descriptions of soil density or N consistency are based on usually soil is obtained from co below water table interpretation of blowcount data, o visual appearance of soils,and/or test data. 0 LL Project Number NELSON GEOTECHNICAL No. Date Revision By CK Zillah Street Residential ASSOCIATES, INC. 1040718 N A �- 1 6/7/18 Original DPN LSB Development Infiltration G,E.OTECH.N.ICAL_EN.GINE.ERS_a,GEoLAGISTS Z Figure 4 Soil Classification Chart Wo35thAlk 011lce East Wenatchee e,#2 03 E, 17311-135th Ave.NE,A•500 55261ndusey Lana,#2 Woodnville,WA 98072 East Wenatchee,WA 98802 (425)486-1669/Fax:481.2510 www.nelcongeotech.com (509)665-7696/Fax:685.7692 _ Z