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1 071 <br /> x <br /> f <br /> CLASSIFICATION CHART <br /> MAJOR DIVISIONS SYMBOLS TYPICAL NAMES GIGS <br /> PATTERN <br /> GW .O well graded gravels or QrerN-sand mixtures,little or no lines <br /> GRAVEIS <br /> Uf LU GP OO Poorly graded gravels or gravel-sand mixtures,Calc or no fines 28 <br /> J N zs <br /> p ur MORE THAN 1/2 OF <br /> iA w COARSE FRACTION> Silty gravels,gravel-sand mixtures <br /> p r?u NO.4 SIEVE SIZe GM 2611 <br /> Z c <br /> GC <br /> Clayey gravel.,gravel-sand-clay mixtures <br /> C 2fis)d <br /> EP Z SW Hell graded sands or gravelly rands,little or no Vs <br /> I <br /> vi© �N� Poorly graded sands or y <br /> SP g:avetl !010e little n <br /> Q s MORE THAN 1/2 OF <br /> � w <br /> c COARSE FRACTION< Silly sands,sand-silt mixtures <br /> NO.4 SIEVE SIZE SM <br /> Sc Clayey sands,sand-clay mixture <br /> w organic sillys and very fine sa ,sJw ML fine santls or clayey silts with slii CL Inorganic clays of low to mediumveU1 > �F sandy clays,silly Clays,lean cla <br /> O in <br /> Z o OL III 1 Organic sifts andorganic silly clays of low Plasticity <br /> «.N 13 <br /> Cc Q ri Inorganic si3ts,micaceous or diatomaceous fine sandy Or silly - <br /> Z <br /> SILTS ✓,r CLAYS MH sail,elastic silts 12 <br /> Z H CH Inorganic clays of high plasticity,fat clays <br /> cc LL>50 15 <br /> 4- } <br /> o OH /� Organic Clays of medium la high Plasticity,organic silty clays, <br /> � organic sills 35 <br /> HIGHLY ORGANIC SOILS Ft Peal and other Nightly organic soils <br /> PO <br /> GRAIN SIZE CHART WELL CONSTRUCTION MATERIALS <br /> RANGE OF GRAIN SIZES Asphalt (68) SCREENS <br /> CLASSIFICATION U.S.Standard Grain Size W5.-Al Concrete (55) <br /> Sieve Size in Millimeters v. Solid (ls) <br /> BOULDERS Above 12' Above F r v Neat Cement (S4) <br /> COBBLESSlotted PVC 13w) <br /> 12' to 3' 305 to 76.2 ;6", Base Course I30) <br /> GRAVEL 3' to No.4 76.2 to 4,75 ITTJI Sluff (64) Slot.PVC High Flow Sow) <br /> COARSE 3' to 3/476.2 1019.1 LTlJJ <br /> FINE 3/4' to No.4 10.1 to 4.75 <br /> ® 13enlanile I21) ® Wire Hound PVC [16x) <br /> SAND NO.4 to No,200 4.75 to 0.074 <br /> COARSE No.4 to No.10 4.76 to 2.00 Filler Pack (7) <br /> MEDIUM NO-10 to Na.40 2.00 to 0.420 <br /> FINE No.40 to No.200 0.420 to 0.074 ® Hire Wound Steel (15w) <br /> SILT 8 CLAY Below No.200 Below No.0.474 � Pea Gravel f21 <br /> ® Liner (33) Saw Cut (12") <br /> Geocloth (36) <br /> SAMPLE TYPES SYM80LS <br /> SS — Splt Spoon y Initial Water Level <br /> CC— Continuous Core <br /> CG —Cuttings Grab 7 Static Water Level <br /> 04/03/1992 keyprint-lan GROUNDWATER <br /> RIBTECHNOLOGY <br /> Ir <br /> r <br /> I <br /> ;lf <br /> Y. <br />