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i <br /> MAJOR DIVISIONS TYPICAL NAMES <br /> . • ' GW Well graded gravels with or without sand, little or <br /> iCLEAN GRAVELS � ' � no fines <br /> GRAVELS wrrH Lmu <br /> OR NO FINES Gp Poorly graded gravels with or without sand, little or <br /> MORE THAN HALF ' no fines <br /> COARSE FRACTION <br /> IS LARGER THAN GM Silty grovels, silty gravels with sand <br /> NO 4 SIEVE SIZE <br /> c�lJ z GRAVELS WITH <br /> OVER 15% FINES <br /> zGC Clayey gravels, clayey gravels with sand <br /> a � <br /> C SW Well graded sands with or without gravel, little or <br /> ICLEAN SANDS no fines <br /> LU <br /> UTTLE <br /> SANDS OR NO FINES Sp Poorly graded sands with or without gravel, little or <br /> o no fines <br /> C.1 MORE THAN HALF <br /> COARSE FRACTION SM Silty sands with or without gravel <br /> IS SMALLER THAN <br /> NO 4 SIEVE SIZE SANDS WITH <br /> OVER 15% FINES <br /> SC Clayey sands with or without gravel <br /> ML Inorganic silts <br /> and grovels fne sands, rock flour, silts <br /> sandsLn with <br /> 8 SILTS AND CLAYS Inorganic clays of low to medium plasticity, clays <br /> �o $ CL with sands and gravels, lean clays <br /> LIQUID LIMIT 505& OR LESS <br /> o i <br /> W i OL Organic silts or clays of low plasticity <br /> Z g <br /> MH Inorganic silts, micaceous or diatomaceous, fine <br /> SILTS AND CLAYS sandy or silty sails, elastic silts <br /> z CH Inorganic clays of high plasticity, fat clays <br /> LIQUID LIMIT GREATER THAN 50% <br /> o OH Organic silts or clays of medium to high plasticity <br /> HIGHLY ORGANIC SOILS PT Peat and other highly organic soils <br /> PID Volatile vapors in ppm Observed contact <br /> (2 5YR 6/2) Soil color according to Munsell — --— — Inferred contact <br /> Soil Color Charts (1993 Edition) <br /> No sail sample recovered <br /> BLOWS/FT Sample drive hammer weight — <br /> 140 pounds falling 30 inches �UndisturbedA sample <br /> Blows required to drive sampler V First encountered groundwater level <br /> 1 foot are indicated on the logs <br /> I Static groundwater level <br /> UNIFIED SOIL CLASSIFICATION <br /> C7ETrtER ' RrAx jiNC. <br /> ASTM D 2488-85 <br /> 6747 Serra Ct, Suite J AND <br /> Dublin, CA 94568 (925) 551-7555 KEY TO SAMPLING DATA <br /> �� MRAIE �' PIYPES SLOG—KEY DWG I Layout Tab Blog Key <br />