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UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR CROW DESCRIPTION N►JOA GROUP, DISCRIPTION <br /> DIVISION SYMBOL DIVISION SYMBOL 1 <br /> GU Nell graded gravels or gravel sand ML Inorganic silts and very fine <br /> GRAVEL sixtures, little or ao tineo. SILTS sands, rock flour, silty or <br /> clayey five sands or clayey silts <br /> AND GP Poorly-graded gravels or gravel AMC ♦ with slight plasticity <br /> sand mixtures, little or no fines. <br /> GRAVELLY send <br /> CL Inorganic clays of low to medium <br /> CN Silty gravels, gravel-sand-silt plasticity gravelly clays, sandy <br /> SOILS sixtures. LL(SO clays, silty clays, lean clays. <br /> COARSt GC Clayey grovels, gravel-sand-clay PINE OL Organic silts and organic silt- <br /> mixtures.. clays of low plasticity <br /> GRAINED GRAINED <br /> Sg Yell-graded sands or gravelly Mt Inorganic silts, sicaceous or <br /> fOILi iANO seeds, little or ao tieeo. SOILS SILTS diatosaeeous tine sandy or silty <br /> Bolla, elastic silts. <br /> AND SP Poorly-graded sands or gravelly AND <br /> •aid, little or ao tines. CM Inorganic clays of high plasticity, <br /> SANDY CLAYS fat clays. <br /> SOILS SN Silty sands, sand-silt mixtures. LL)SOoe Organic clays of sedius to high <br /> plasticity,vbrganie silts <br /> SC Clayey sands, sand-clay mixtures. RICHLY PtPsat and other highly organic <br /> ORGANIC SOILS soils <br /> i <br /> STANDARD PENETRATION SPLIT SPOON SAMPLE <br /> SHELBY TUBE SAMPLE <br /> MODIFIED PORTER SAMPLE 12.5-in. I.D.) <br /> ' MODIFIED CALIFORNIA SAMPLZ (2.0-in. I.D.) <br /> WATER LEVEL OBSERVED IN BORING <br /> NR NO RECOVERY <br /> N FWE NO FREE PATER ENCOUNTERED <br /> Pp POCKET PENETROMETER (field) <br /> NOTE: THE LINES SEPARATING STRATA ON THE LOGS REPRESENT APPROXIMATE BOUNDARIES <br /> ONLY. THE ACTUAL TRANSITION MY BE GRADUAL. NO WARRANTY IS PROVIDED AS TO <br /> THE CONTINUITY OF SOIL STRATA BETWEEN BORINGS. LOGS REPRESENT THE SOIL <br /> SECTION OBSERVED AT THE BORING LOCATION ON THE DATE OF DRILLING ONLY. <br /> Former Puregro Facility BORING LOG LEGEND <br /> BALBI & CHANG ASSOCIATES PROJECT NO.2037_1 DATE 12/27/90 <br /> Gootechnlcal Consultants /Materials Testing PREPARED BY GYM PLATE A—a <br /> H <br />