Laserfiche WebLink
CLASSIFICATION CHART <br /> i <br /> GTGS <br /> MAJOR DIVISIONS SYMBOLS TYPICAL ?TAMES FILL <br /> PATTERN <br /> Well graded gravels or gravel-sand mixtures, little or no fines 26 <br /> GW o <br /> U) w GRAVEL 4 OO Poorly graded gravels or gravel-sand mixtures, little or no fines 25 <br /> __jN GP <br /> 0 in MORE THAN 1/2 OF Silty gravels, gravel-sand mixtures <br /> to ut COARSE FRACTION> OM 26-11 <br /> NO 4 SIEVE SIZE <br /> Uu N Clayey gravels, gravel-sand-clay mixtures 26=14 <br /> Z c GC <br /> a Well graded sands or gravelly sands,little or no fines <br /> X SW 8 <br /> Uj o SAM; Poorly graded sands or gravelly sands, little or no fines <br /> cc &DSP 6 <br /> Q = MORE THAN 1/2 OF s <br /> U o COARSE FRACTION< SM Silty sands, sand-silt mixtures <br /> NO 4 SIEVE SIZE <br /> Sc Clayey sands, sand-clay mixtures 10 <br /> LU Inorganic silly$ and very fine sands, rock flour, silty or clayey it <br /> in N ML fine sands or clayey slits with slight plasticity <br /> .j in SILTS E CLAYS <br /> 0 Inorganic clays of tow to medium plasticity,gravelly clays. 14 <br /> U13 � CL sandy clays, silty clays, lean clays <br /> 0 Ln OL E I ( ( Organic silts andorganic silty clays of low plasticity 16 <br /> Z p <br /> a oInorganic sills, micaceous or diatomaceous fine sandy or silty 12 <br /> = Z MH soils, elastic silts <br /> LU o SILTS CLAYS Inorganic clays of high plasticity, fat clays <br /> ~ CC <br /> 141) CH 15 <br /> LL 50 <br /> Lt_ Organic clays of medium to high plasticity, organic silty clays, 35 <br /> o OH / organic silts <br /> HIGHLY ORGANIC SOILS pt Peat and other hightly organic sods 20 <br /> GRAIN SIZE CHART WELL CONSTRUCTION MATERIALS <br /> RANGE OF GRAIN SIZES on <br /> Asphalt (68) SCREEDS <br /> CLASSIFICATION U S Standard Grain Size >vn Concrete (55) Sot+tl (is) <br /> Sieve Size in Millimeters <br /> BOULDERS Above 12' Above 305 r Y Neat Cement (54) <br /> Slotted PVC (3w) <br /> COBBLES 12' to 3' 305 to 76 2 0 Base Course (30) <br /> GRAVEL 3' to No 4 76 2 to 4 75 ® Siuff (84) Slot PVC High Flow (8w) <br /> COARSE 3' to 3/4' 762 to 18 f <br /> FINE 3/4' to No 4 101 to 4 75 ®® Bentonite (21) Wire Hound PVC (16w) <br /> SANK No 4 to No 20D 4 75 to Q 074 <br /> COARSE No 4 to No 10 4 76 to 2 00 Filter Pack (7) <br /> MEDIUM No 10 to No 40 2 00 to 0 420 ® Wire Wound Steel (15w) <br /> FINE No 40 to No 200 0 420 to O 074 ^ pea Gravel (2) <br /> SILT S CLAY Below No 200 Below No 0 074 Saw Cut (12w) <br /> ® Liner (33) <br /> Geocloth (36) <br /> SAMPLE TYPES SYMBOLS <br /> SS - Split Spoon Initial Water Level <br /> CC - Continuous Core Static Water Level <br /> CG - Cuttings Grab <br /> GROUNDWATER <br /> 04/13/1862 keyarint-tan E17-101TECHNOLOGY <br />