Laserfiche WebLink
FW 0 <br /> Unified Soil Classification System <br /> Major Divisions Symbols Typical Names <br /> GW Well-graded gravels or gravel-sand mixtures, <br /> little or no fines <br /> Gravels <br /> GP Poorly-graded gravels or gravel-sand mixtures, <br /> H (More than half of little or no fines <br /> y > coarse fraction> <br /> o 'N no.4 sieve size) GM Silty gravels, gravel-sand-silt mixtures <br /> rn o <br /> d0 GC Clayey gravels,gravel-sand-clay mixtures <br /> C A <br /> m = <br /> C7 y SW Well-graded sands or gravelly sands, little or no fines <br /> y o <br /> Q t Sands <br /> 0 L SP Poorly-graded sands or gravelly sands, little or no fines <br /> (More than half of <br /> coarse fraction< <br /> ° SM Silty sands, sand-silt mixtures <br /> E no.4 sieve size) <br /> SC Clayey sands,sandclay mixtures <br /> m ML Inorganic silts and very fine sands, rock flour,silty <br /> N <br /> N fine sands or clayey silts with slight plasticity <br /> y N Silts and Clays CL Inorganic clays of low to medium plasticity,gravelly <br /> 0 o LL= < 50 clays,sandy clays, lean clays <br /> co n <br /> y OL Organic silts and organic silty clays of low plasticity <br /> c v <br /> H <br /> MH Inorganic silts, micaceous or diatomaceous fine sandy <br /> t7 o <br /> or silty soils, elastic silts <br /> m m <br /> c Silts and Clays <br /> LL m LL = >50 CH Inorganic clays of high plasticity,fat clays <br /> E OH Organic clays of high plasticity,organic silty clays, <br /> organic silts <br /> Highly Organic Soils Pt Peat and other highly organic soils <br /> Grain Size Chart <br /> Range of Grain Sizes <br /> Classification U.S.Standard Grain Size <br /> Sieve Size in Millimeters <br /> Boulders Above 12 Above 305 <br /> Cobbles 12"to 3" 305 to 76.2 <br /> Gravel 3"to No.4 76.2 to 4.76 <br /> coarse 3"to 3/4" 76.2 to 19.1 <br /> fine 3/4"to No.4 19.1 to 4.76 <br /> Sand No. 4 to No.200 4.76 to 0.074 <br /> coarse No.4 to No.10 4.76 to 2.00 <br /> medium No.10 to No.40 2.00 to 0.420 <br /> fine No.40 to No.200 0.420 to 0.074 <br /> Silt and Clay Below No. 200 Below 0.074 <br /> SOUTH PARCEL <br /> Stockton, California CLASSIFICATION CHART <br /> 7h3ad%%1d1&JU10 Project No. 2003.02 Figure 5 <br />