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VAUT UNIFIED SOIL CLASSIFICATION SYSTEM <br /> ASSOCIATES INC. <br /> Major <br /> Major <br /> clean grovels CW Well graded growls with or without sand, little or <br /> with Rile or <br /> no fines. <br /> GRAVELS no fines <br /> Poorly graded growls with or wilhout sand, little or <br /> more than half CP <br /> no rines. <br /> coarse fraction is <br /> larger than No. 4 <br /> Gill % Stilly gravels, silty gravels wish sand. <br /> sieve size grovels with <br /> V) aver 12% fines ZIZ, <br /> GC Clayey gravels, cloyey 9(cwls with sand. <br /> Well graded sands with or without grovel, little or <br /> vl:S clean sands Sw <br /> Z, no fines. <br /> with little or <br /> SANDS no fines Poorly graded sands with or without gravel, little or <br /> more than half <br /> come fraction is no fines. <br /> larger than No. 4 <br /> sieve size sands with Slit silly sands with or without grovels. <br /> over12% fines <br /> SC Clayey sands with or without grovel. <br /> ML Inorganic clays and very rine sands, rock flour, silts <br /> with sands and gravels. <br /> SLTS AND CLAY <br /> liquid limit 50% or lm Inorganic clap of low to medium plasticity. clays <br /> CL <br /> wilh sands and gravels, lean clays. <br /> wag OL - Organic silts or clays a( low plasticity. <br /> wa , <br /> Z <br /> WH Inorganic <br /> Inorganic silts, micaceous or diatomaceous, fine <br /> sandy or silty, elastic sift <br /> SILTS AND CLAY <br /> liquid Smit greater than 50% CH Inorganic days of high plasticity, fat cjay_- <br /> OHWOrganic silts of cloy of medium to high plasticity. <br /> Peot <br /> HIGHLY ORGANIC SOILS <br /> PT Peot and other highly organic soas. <br /> SYMBOLS DRILL LOG ROCK <br /> First encountered water Limestone <br /> Static groundwater <br /> Dolomite <br /> Grout gigolo I Iloilo, <br /> Mudstone <br /> Rank Casing <br /> bentonite <br /> Siltstone <br /> J-1 Filter Pack <br /> Screened Casing Sandstone <br /> ... .............. <br /> 7. <br /> .............. <br /> igneous <br />