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I <br /> Soil Classification <br /> 1 <br /> USCS Soil Classification <br /> Major Division Group Description I <br /> Gravel and Gravel GW Well-Graded Gravel <br /> Gravelly Soils (with little or no fines) GP PoorlyGraded Gravel <br /> Coarse- <50%coarse <br /> Grained fraction passes Gravel GM Silty Gravel I <br /> Soils #4 sieve (with>12%fines) GC Clayey Gravel <br /> <50% Sand and Sand SW Well-Graded Sand <br /> passes Sandy Soils (with little or no fines) <br /> #200 >50%coarse SP Poorly Graded Sand I <br /> sieve fraction passes Sand SM Silty Sand <br /> #4 sieve (with>12%fines) SC Clayey Sand <br /> ML Silt <br /> II <br /> Fine- Silt and Clay CL Lean Clay <br /> Grained Liquid Limit<50 <br /> Soils OL Organic Silt and Clay(Low Plasticity) <br /> >50% MH Inorganic Silt I <br /> passes <br /> #200 Silt and Clay <br /> sieve Liquid Limit>50 CH Inorganic Clay <br /> OH Organic Clay and Silt(Med.to High Plasticity) I <br /> Highly Organic Soils PT Peat <br /> I <br /> Relative Density with Respect to SPT N-Value <br /> Coarse-Grained Soils Fine-Grained Soils I <br /> Density N-Value (Blows/Ft) Density N-Value (Blows/Ft) <br /> Very Loose 0-4 Very Soft 0 - 1 I <br /> Loose 5-10 Soft 2-4 <br /> Medium Dense 11 -30 Medium Stiff 5-8 I <br /> Dense 31 -50 Stiff 9- 15 I <br /> Very Dense > 50 Very Stiff 16-30 <br /> Hard >30 I <br /> I <br /> �_ arl & ASSOCIATES,INC. I <br /> Everett Water Main V-Everett,WA <br /> Date:March 2020 ' References:USCS I <br /> Drawn By:NG I I Project Number:092-20006 <br />