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MAJOR DIVISIONS <br /> TYPICAL NAMES <br /> JG <br /> S. Well graded gravels with or without sand, little or no i <br /> fines <br /> Clean gravels withGRAVELS little or no fines Poorly graded gravels with or without sand little or <br /> more than halfno fines <br /> coarse fraction !s O larger than No 4 SEIty gravels,silty gravels with sand <br /> N W > sieve size Gravels withO p�n over 12% finesW L Clayey gravels, clayey gravels with sand <br /> o[C N �fi <br /> 1 graded sands with or without gravel, I�ttie or no <br /> Ca c Z s <br /> LU � a Clean sands with <br />' SANDS little or no fines SP Poorly graded sands with or without gravels, little or <br /> a o more than half <br /> no fines <br /> 02 coarse fraction Is <br /> 0 smaller than No 4 SM Silty sands with or without gravel <br />' sieve size Sands with <br /> over 12% fines SC Clayey sands with or without gravel <br />' ML Inorganic silts and very fine sands, rock flour, silts <br /> with sands and gravels <br /> SILTS AND CLAYS CL Inorganic clays of low to medium plasticity,clays <br /> C liquid limit 50% or less — with sands and gravels, lean clays <br /> 1N <br /> S2 rn OL — — Organic silts or clays of low plasticity <br /> G — — <br /> W mo <br /> ZsN <br /> 11norganic <br /> organic silts, micaceous or diatomaceous fine <br /> ce cc Z JCH <br /> andy or silty soils,elastic silts <br /> UJ a SILTS AND CLAYS clays of high plasticity, fat clays <br /> liquid limit greater than 50% <br /> rganic clays or clays of medium to high plasticity <br /> HIGHLY ORGANIC SOILSeat and other highly organic soils <br /> DRILL LOG <br /> SYMBOLS ROCK TYPES <br /> Q First Encountered Groundwater Samples Limestone <br /> Gauged Groundwater Level <br /> ® —r — Dolomite <br /> Portland Cement Air ,^ —�— <br /> Blank Casing _ _ -- Mudstone <br /> Bentonite Pellets ® Sod <br /> _ Siltstone <br /> Water <br /> Filter Pack Sandstone <br /> ® Open <br /> Screened Casing Hole tip- 1�- -��- Igneous <br /> UNIFIED SOIL CLASSIFICATION SYSTEM DESCRIPTIONS <br /> ET I AND SYMBOLS USED ON ETIC DRILL LOGS <br /> ENGINEERING <br />