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MAJOR DIVISIONS <br />GRAPH <br />SYMBOL <br />LETTER <br />SYMBOL <br />TYPICAL DESCRIPTION <br />.:4 :• :•.•. <br />GW <br />We II -Graded Gravels, Gravel -sand <br />Gravel <br />•• •••• •••• <br />"•'•'•' •° <br />gyy <br />Mixtures, Little Or No Fines <br />And <br />Clean Gravels <br />"0::0:: <br />GID <br />Poorly -Graded Gravels.Gravel- <br />Gravelly <br />(little or no fines) <br />Soils <br />• • ! • <br />gp <br />Sand Mixtures, Little Or No Fmes <br />FGrained <br />More Than <br />GM <br />Silly Gravels, Gravel• sand - <br />50%Coarse <br />Gravels With <br />gm <br />Sill Mixlurps <br />Fraction <br />Retained On <br />Fines(appreciable <br />amount of lines) <br />GC <br />Clayey Gravels. Gravel -Sand - <br />No. 4 Sieve <br />gC <br />Clay Mixtures <br />•e°ee ee a <br />SW <br />Well -Graded Sands, Gravelly <br />Sand <br />°o° a°•°°ea <br />°, <br />SW <br />Santls. Little Or No Fines <br />And <br />Sandy <br />Clean Sand <br />(little or no lines) <br />Sp <br />Poorly -Graded Sands. Gravelly <br />More Than <br />Soils <br />••, •• <br />•• •�.L�,L,. <br />Sp <br />Sands, Little Or No Fines50% <br />Material <br />SM <br />Silly Sands. Santl - Sill Mixtures <br />Larger Than <br />More Than <br />No. 200 Sieve <br />50% Coarse <br />Sands With <br />Sm <br />Size <br />Fraction <br />Passing No.4 <br />Fines (appreciable <br />amount of tines) <br />SC <br />Clayey Sands. Santl -Ci - Mixtures <br />Sieve <br />s <br />SC <br />Inorganic Silts &Ver, Sands, Rock Flour,Silty <br />ML <br />ml <br />Clayey Fine Sands: Cl,,,,y Silts wr Slight Plasticity <br />Fine <br />Sills Liquid Limit <br />CL <br />Inorganic Clays Of Low To Medium Plasticity. <br />Grained <br />And Less Than 50 <br />CI <br />Gravelly Clays, Sandy Clays. Silly Clays. Lean <br />Soils <br />Clays <br />I' <br />OL <br />Cganic Sills And Organic <br />1 I T <br />OIOrganicty <br />Clays Of Low Plaslicily <br />MH <br />Inorganic Sits, Micaceous Or Diatomaceous Fine <br />More Than <br />mh <br />Sand Or Silty Soils <br />CH <br />Inorganic Clays Of High <br />50% Material <br />Sills Liquid Limit <br />Smaller Than <br />And Greater Than 50 <br />Ch <br />PlasticitY. Fat Clays <br />No. 200 Sieve <br />Clays <br />/ /. <br />DH <br />Organic Clays Medium To High <br />Size <br />Oh <br />Plaslicily, Organini c Sills <br />Peat. Humus, Swamp Soils <br />Highly Organic Soils <br />—�- <br />Pt <br />With High Organic Contents <br />c <br />— <br />ull Layer <br />Humus And rHighly <br />Variable Constituents <br />OOaODOpp; <br />The Discussion In The Text Of This Report Is Necessary For A Proper Understanding <br />Of The Nature 01 The Material Presented In The Attached Logs <br />Notes : <br />Dual symbols are used to indicate borderline soil classification. Upper <br />case letter symbols designate sample classifications based. upon lab- <br />oratory testing; lower case letter symbols designate classifications not <br />verified by laboratory testing. <br />I 2-O.D, SPLIT SPOON SAMPLER <br />2A-I.D. RING SAMPLER OR <br />II SHELBY TUBE SAMPLER <br />P SAMPLER PUSHED <br />SAMPLE NOT RECOVERED <br />SC WATER LEVEL (DATE) <br />■ WATER OBSERVATION WELL <br />Earth <br />Consultants Inc• <br />GEOTECHNICAL ENGINEERING & GEOLOGY <br />C TORVANE READING, tsf <br />clu PENETROMETER READING.tsf <br />W MOISTURE, percent of dry weight <br />pcf DRY DENSITY• pounds per cubic ft. <br />LL LIQUID LIMIT,percent <br />PI PLASTIC INDEX <br />LEGEND <br />Proj. No. 2976 1 Date May' 86 <br />Plate 3 <br />