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r-. <br /> CLASSIFICATION CHART <br /> FfM JOR DIVISIONS SYMaoLs TYPICAL NAMES �i�i <br /> PATTERN <br /> jjRAV_ GW .O1 Well graded gravels or gravef-sand mixtures. iittlt Of no fines <br /> s` zs <br /> GP �0 Poorly graded gravels or gravel-sand mixtures, uttle or no tines 25 MORE TiiAN 112 OFCOARSE FRACT)ON> S9ty gravels, gravel-sano>wi:tures <br /> L] NO-4 SIEVE SIZE GM 26=11 <br /> aV GC Clayey gravels. gravel-send-clay mixiures 26=14 <br /> Welt oraded sands or gravely sands, little or no fines <br /> LU k SAS SSV 8 <br /> cc Poorly graded san0s or gravely sands, little or no fines <br /> ¢ SP <br /> C w MORE THAN 112 OF � <br /> C> <br /> U a COARSE FRACTIONc Silty sands, sand-silt mixtures <br /> O N0.4 SIEVE SIZE SM <br /> s <br /> Sc Clayey sands, sand-Gay mixtures <br /> 10 <br /> ML Inorganic silts and very fine sanos, rock flour, silty or Eclayey <br /> W i AIR fine sands or clayey silts Will) slight plasticity 11 <br /> D y Inorganic clays of low to medium plasticity, gravelly Gays, <br /> <F C� sandy clays, silty clays.lean clays 14 <br /> Uj cCL I 1 i 1 Organic silts and organic silly ciays of lox plasticity <br /> 18 <br /> =C o Inorganic silts,micaceous or diatomaceous fine sandy or silty <br /> z MH soils, elastic silts 12 <br /> ►c SITS & CLAYS <br /> ZCH Inorganic Clays of high plasticity, fat clays <br /> LL LJ ll?,5 15 <br /> DH �j Organic clays of medium to high plasticity, organic silty clays, <br /> / organic. slits 35 <br /> HIGHLY ORGANIC SOILS P1 Peat and other highly organic soils <br /> ,J <br /> 20 <br /> GRAIN SIZE CHART WELL CONSTRUCTION MATERIALS <br /> RANGE OF GRAIN SIZES Asphalt (68) SCREENS <br /> CLASSIFICATION <br /> U.S. Standard Gram Size ?.fin Concrete (55) <br /> Sieve Size in Millimeters 0 Solid (ts) <br /> BOULDERS Above 12' Above 305 E2 Neat Cement (54) <br /> COBBLES I Slotted PVL {3w} <br /> f 12' to 3' 305 to 76.2 Base Course (30) <br /> GRAVEL 3' to No.4 76.2 t 4.75 <br /> COARSE 3' to 3/t• Sluff (64) f=J Slot. PVC +i,ph Flow (8w) <br /> FIN= 3/4' to No.4 0Ito 4.75 LJ <br /> SAND Brntonite (21) wire Wound PVC (i6w) <br /> No.4 to NQ.zoO 4.75 to o.D7< <br /> COARSE No.0 to No.4 .00 to 2.00 Filter Pack (7) <br /> 9 <br /> MEDIuI+. NO-10 tD No.40 2.OD to 0.420 <br /> FINE No.aO to No 200 0.420 to 0.074 ® Wire mound Steel (15w) <br /> SILT S CLAY f Pea Gravel (2) <br /> 13elaw Na.20D Below NQ.0.074 <br /> 1=__� Liner (33) Saw Cul (12w) <br /> nGeDcloth (36) Stainless Sleet (13w) <br /> SAMPLE TYPES SYMBOLS <br /> SS - Split S000n <br /> CC - Continuous Core Initial eater Levet <br /> CG - Cuttinos Grab I Statist' Hater Level <br />