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CITY OF SANTA ANA <br />UNIFIED IL CLASSI-FICATION SYSTEM <br />g Agency <br />MAJOR DIVISIONS <br />COARSE <br />(More than 50% <br />of material is <br />LARGER than <br />No. 200 sieve <br />size) <br />FINE <br />GRAINED <br />SOILS <br />(More than 50% <br />of material is <br />SMALLER than <br />No, 200 sieve <br />size) <br />GRAVELS <br />(More than 50% <br />of coarse fraction <br />is LARGER than <br />the No. 4 sieve <br />size) <br />SANDS <br />(More than 50 % <br />of coarse fraction <br />is SMALLER than <br />the No. 4 sieve <br />size) <br />Approve <br />FOR PERMIT ISS ANCE <br />GROUP <br />SYMBOLS <br />TYPIC <br />�",t���,,A,�F <br />`IVIaWFE): <br />;O;or' <br />b °' <br />Well -graded graveiso <br />g�ravc�tond <br />CLEAN <br />'b : GW <br />O•':o <br />mixtures, little or no f <br />nes. <br />GRAVELS <br />(Little.or no fines) <br />:;••t;; <br />Poorly -graded gravels or gravel -sand <br />•��.t;; <br />GP <br />mixtures, little or no fines. <br />GRAVELS <br />GM <br />Silty grovels, gravel -sand -silt mixtures. <br />WITH FINES <br />' <br />•_, <br />(Appreciable amt, <br />of fines) <br />GC <br />Clayey grovels, gravel -sand -clay mixtures. <br />CLEAN SANDS <br />(Little or no fines) <br />SANDS <br />WITH FINES <br />(Appretioble amt, <br />of fines) <br />SILTS AND CLAYS <br />(Liquid limit LESS than 50) <br />SILTS AND CLAYS <br />(Liquid limit GREATER than 501 <br />SW Well -graded sands or gravelly sands, <br />little or no fines. <br />SP Poorly -graded sands or gravelly sands, <br />little or no fines. <br />SM I Silty sands, sand -slit mixtures. <br />SC I Clayey sands, sond-cloy mixtures. <br />Inorganic silts and very fine sands, rock <br />ML flour, silty or clayey fine sands or clayey <br />silts with slight plasticity. <br />Inorganic clays of low to medium plasticity, <br />CL gravelly clays, sandy clays, silty clays, lean <br />clays. <br />OL Organic silts and organic silt -clays of <br />low plasticity. <br />MH Inorganic silts, micaceous or diatomaceous <br />fine sandy or silty soils, elastic silts. <br />CH I Inorganic -clays of high plasticity, fat clays. <br />OH Organic clays of medium to high plasticity, <br />organic silts. <br />HIGHLY ORGANIC SOILS Pt I Peat and other highly organic soils, <br />BOUNDARY CLASSIFICATIONS: Soils possessing characteristics of two groups are designated <br />by combinations of group symbols. <br />Reference: The Unified Soil Classification System, <br />Corps of Engineers, U.S. Army Technical Memorandum <br />No. 3-357, Vol. 1, March, 1953 (Revised April, 1960) <br />PROJECT LOCATION: 1433 Cypress Ave I PROJECT No.: 2157-S ( PLATE A <br />Santa Ana, California <br />PACIFIC GEOTECH, INC <br />