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i r UNIFIED SOIL CLASSIFICATION SYSTEM KAJOR DIVISIONS LTR DESCRIPTION MAJOR DIVISIONS LTR DESCRIPTION z¢ u3 GV Hell-graded gravels or gravel sand ML inorganic silts and very fine m mixtures, little or no fines. sands, rock flour, silty or Q n GRAVEL SILTS clayey fine sands or clayey silts Q z GP Poorly-graded gravels or gravel with slight plasticity. AND sand mixture, little or no fines. AND CL inorganic clays of low to medium GRAVELLY GM Silty gravels, gravel-sand-clay CLAYS plasticity, gravelly clays, sandy SOILS mixtures. LL<50 clays, silty clays, lean clays. COARSE GC Clayey gravels, gravel-sand-clay FINE OL Organic silts and organic silt- GRAINED mixtures. GRA INED clays of low plasticity SOILS SW Well-graded sands or gravelly MH Inorganic silts, micaceous or SOILS diatomaceous fine sand it sands. little or no fines. SILTS y or silty y 'soils. elastic silts SAND SP Poorly-graded sands or gravelly AND sands, little or no fines. CH Inorganic clays of high plasticity, AND CLAYS fat clays. } SANDY SM Silty sands, sand-silt mixtures. LL>50 OH Organic clays of medium to high M m SOILS plasticity. 0 0 Sc Clayey sands, sand-clay mixtures. MIG LY Pt Peat and other highly organic w 3 ORG NIL SOILS soils. 00 uJ U a U Q Z am' Standard penetration split spoon sample CC Modified California sampler IShelby t be sample e Dater le el observed in boring * No recov ry NFWE No free vater encountered NOTE: The lines separating strata on the logs represent approximate boundaries only. The actu 1 transition may be gradual . No warra ty is provided as to the continuity of soil- strata between borings. Logs represent the soil section observed at the bori g location on the date of drilling only. PLATE 1 PREPARED FOR 1984 IT CORPORATION ALL COPYRIGHTS TRESERVED . . . CIeatin Safe Creating a r Tomorrow "Do Nat Scaie This Drawing' _