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U-NIElED SQIL CLA5STFICAIION SYSTFM <br /> 5 <br /> I <br /> CLASSIFICATION CHART <br /> MAJOR DIVISIONS SYNBOLS TYPICAL NAMES FIS <br />. PATTERN <br /> Gw O Well graded gravels or grarei-sand mixtures little or no lines 26 <br /> GRAVFI 0 Poorly fines W GP 0 graded gravels or gravel-send m,rlures, little or no f 25 <br /> � � <br /> O cin MORE THAN 1/2 OF Slkl gravels. av <br /> (n w COARSE FRACTION> y 9r gr el-sand mixtures - <br /> p LU NO 4 SIEVE SIZE GM 26 11 <br /> W Ciayey gravels, gravel-sand-clay mixtures <br /> ? o GC 26=14 <br /> a <br /> 0 SW Well graded sands or gravelly sands, little or no fines 8 <br /> K <br /> (n C) SP Poorly graded sands or gravelly sands, little or no fines 6 <br /> < ,��, MORE THAN 1/2 OF <br /> UO o COARSE FRACTION< SM Silty sands, sand-silt mixtures 8 <br /> NO 4 STEVE SIZE <br /> SC Clayey sands sand-clay mixtures 10 <br /> w Inorganic siltys and very fine sands, rock flour, silty or clayey <br /> (n NJ ML fine sands or clayey silts with slight plasticity 11 <br /> .J <br /> q i Inorganic clays of low to medium plasticity, gravelly clays, <br /> V) w CL sandy clays, silty clays, lean clays 14 <br /> LL<50 <br /> n inOL I I I I Organic silts andorganic silty clays of low plasticity 18 <br /> a o Inorgaruc slits,micaceous or diatomaceous fine sandy or silty <br /> M ? MH I I soils elastic slits 12 <br /> C9 <br /> X STI T; QLAYS <br /> Z 0CH Inorganic clays of high plasticity, fat clays 15 <br /> .rC: ) <br /> LLi L- Organic clays of medium to high plasticity, organic silly clays, <br /> CH i � organic slits 35 <br /> HIGHLY ORGANIC SOILS Pt Peat and other hightly organic soils 20 <br /> GRAIN SIZE CHART WELL CONSTRUCTION MATERIALS <br /> RANGE OF GRAIN SIZES M <br /> Asphalt (68) SCREENS <br /> CLASSIFICATION US Standard Grain Size > A Concrete (55) Solid f>s} <br /> Sieve Size in Millimeters v <br /> BOULDERSAbove 12' Above 305 E;, Neat Cement (54) <br /> Slotted PVC (3w) <br /> -0 <br /> COBBLES 12' to 3' 305 to 76.2 0 Base Course (30) _ <br /> GRAVEL 3' to No 4 76 2 to 4 75 ® Sluff (84) Slot PVC High Flow (8w) <br /> COARSE 3' to 3/4' 76.2 to 19 1 <br /> FINE 3/4' to No A 10 1 to 4 75 <br /> ®SAND No 4 to No 200 4 75 to O'074 Bentonite (21) ® Wore Wound PVC (18w) <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 <br /> FINE No 40 to No.200 0 420 to 0 074 Pea Gravel (2) Wine Wound Steel (t5w® ) <br /> SILT b CLAY Below No 200 Below No 0 074 Saw Cut 02x) <br /> ® Liner (33) PE <br /> ElGeocioth (38) <br /> • SAMPLE TYPES SYMBOLS <br /> SS — Split Spoon y Initial water Level <br /> CC - Continuous Core <br /> CC - Cuttings Grab Static Water Level <br /> GROUNDWATER <br /> Q4/13/1292 keyorint-lan TECHNOLOGY <br />