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UNIFIED SOIL CLASSIFICATION SYSTEM MAJOR DIVISIONS GROUP GROUPNAMESYMBOL CLEAN GW WELL-GRADED,FINE TO COARSE GRAVEL COARSE - GRAVEL GRAVEL GP POORLY-GRADED GRAVEL GRAINED MORE THAN 50% GRAVEL GM SILTY GRAVEL OF COARSE FRACTION 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.AIN 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 INORGANIC MH SILT OF HIGH PLASTICITY,ELASTIC SILT MORE THAN 50% PASSES LIQUID LIMIT CH CLAY OF HIGH PLASTICITY,FLAT CLAY NO.200 SIEVE 50%OR MORE ORGANIC OH ORGANIC CLAY,ORGANIC SILT HIGHLY ORGANIC SOILS PT PEAT NOTES: 1) 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 the touch 2) Soil classification using laboratory tests is based on ASTM D 2488-93. Moist Damp,but no visible water. 3) Descriptions of soil density or Wet-Visible free water or saturated, consistency are based on usually soil is obtained from below water table interpretation of blowcount data, visual appearance of soils,and/or test data. Project Number NELSON GEOTECHNICAL No. Date Revision By CK 870113 Packer Property -__'NGA ASSOCIATES, INC. 1 2112/13 oNymai rsB KMS Soil Classification Chart GEOTECHNICAL ENGINEERS & GEOLOGISTS Figure 4 17311-1351h A a NE,A-5W Snohomish County(425)337-1669 Woo6mv41a,WA 98072 Wenatchee/Chelan(509)7842756 (425)486-1669/Fax 481-2510 www.nelson9eolach.com