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Page 5 <br /> UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS LTR DESCRIPTION MAJOR DIVISIONS LTR DESCRIPTION <br /> GW Well-graded gravels or gravel sand ML Inorganic silts and very fine <br /> mixtures, little or no fines. sands, rock flour, silty or <br /> GRAVEL GP Poorly-graded gravels or gravel sSILTS clayey fine sands or clayey silts <br /> AND sand mixture. little or no fines. AND with slight plasticity. <br /> CL Inorganic clays of low to medium <br /> GRAVELLY GM Silty gravels, gravel-sand-clay CLAYS plasticity, gravelly clays. sandy <br /> SOILS mixtures. LLc5D clays, silty clays, lean clays. <br /> COARSE LC Clayey gravels, gravel-sand-clay FINE OL Organic silts and organic silt- <br /> GRAINED ixtures. GRAINED clays of low plasticity <br /> SOILS SW Well-graded sands or gravelly MM Inorganic silts, micaceous or <br /> SOILS <br /> sands, little or no fines. SILTS tlia tamaceous fine sandy or silty <br /> SANG SP Poorly-gradedso Hs, elastic silts <br /> sands or gravelly AND CN Inorganic clays of high plasticity, <br /> AND sands, little or no fines. [LAYS fat clays. <br /> SANDY SM Silty sands, sand-silt mixtures. LL>50 ON Organic clays of medium to high <br /> SOILS plasticity. <br /> SC Clayey sands, sand-clay mixtures. HIGHLY Pt Peat and other highly organic <br /> ORGANIC SOILS soils. <br /> Standard penetration split spoon sample <br /> — ' Modified California sampler <br /> IShelby tube sample <br /> V Water level observed in boring <br /> ■ No recovery <br /> NFWE No free water encountered <br /> NOTE: The lines separating strata on the logs <br /> represent approximate boundaries only. <br /> The actual transition may be gradual . <br /> No warranty is provided as to the continuity <br /> of soil strata between borings. Logs <br /> represent the soil section observed at <br /> the boring location on the date of <br /> drilling only. <br /> UNION CARBIDE PLATE <br /> J.H. KLEINFELDER & ASSOCIATES <br /> GEOTECHNICAL CONSULTANTS • MATERIALS TESTING MANTECA, CALIFORNIA <br /> BORING LOG LEGEND - 3 <br /> PREPARED BY: KC DATE: 9/86 <br /> _ CHECKED BY: DATE: 9/86 PROJECT NO. W-2030 1 <br />