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i <br /> Kennedy/Jenks Consultants <br /> • Mineralogy <br /> • Grain shape (round, subround, angular, subangular) t <br /> • Moisture (dry, moist, wet) <br /> • Structure <br /> • Organic material <br /> Odor <br /> 2.4.3 Classification of Fine-Grained Soils <br /> Fine-grained soils are classified on the basis of: <br /> 1 <br /> 1. Liquid limit <br /> 2. Plasticity <br /> i <br /> Classification uses the following symbols: <br /> Basic Symbols Modifying Symbols <br /> M - silt L - low liquid limit <br /> C - clay H - high liquid limit <br /> O - organic <br /> Pt— peat <br /> The following are basic facts about fine-grained soil classification: <br /> • The basic symbol M is used if the soil is mostly silt, while symbol C applies if it consists <br /> mostly of clay. Use of symbol O indicates that organic matter is present in an amount <br /> sufficient to influence soil properties. The symbol Pt indicates soil that consists mostly of <br /> organic material. <br /> • Modifying symbols are based on the following hand tests conducted on a soil sample: <br /> • Dry strength (crushing resistance) <br /> • Dilatency (reaction to shaking) �Jl <br /> • Toughness (consistency near plastic limit) <br /> LJ <br /> • Soil designated ML has little or no plasticity and can be recognized by slight dry strength, <br /> quick dilatency, and slight toughness. <br /> • CL indicates soil with slight to medium plasticity, which can be recognized by medium to <br /> high dry strength, very slow dilatency, and medium toughness. <br /> • OL is used to describe a soil that is less plastic than CL soil and can be recognized by slight t� <br /> to medium dry strength, medium to slow dilatency, and slight toughness. <br /> • MH soil has slight to medium plasticity and can be recognized by low dry strength, slow <br /> dilatency, and slight to medium toughness. <br /> Hydrogeologic Investigation and Groundwater Sampling and Analysis Work Plan SOG 2 <br /> Sutter Home Lodi Winery, Lodi, California Page 4 of 5 <br /> gtis�roupladminyab10B,9865005.06 sutlerbpme109.rgwrlsWMrfaskslftl-fry•ow pWnlappendicas Ilb.pQbprabMebg rev dpc <br />