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LEGEND TO BORING LOG PROJECT NO. 30-0547-02 <br /> FORMER MOBILE STATION 04-NP4 <br /> 2375 TRACY BLVD., TRACY, CA <br /> 10/29/91 and 11/19/91 <br /> GEOLOGIC LEGEND. <br /> 40 GW Well-graded gravels,gravel-sand mixtures, little or no fines <br /> `o g �• <br /> GRAVELS GP Poorly-graded gravels,gravel-sand mixtures <br /> more than 112 of <br /> Q coarse fraction GM Silty gravels,gravel-sand-silt mixtures <br /> N s No. 4 Sieve <br /> W If <br /> 06 GC Clayey gravels, gravel-sand-clay mixtures <br /> CL <br /> Z a <br /> pv� <br /> WSW Well-graded sands, gravelly sands, little or no fines <br /> W SANDS Ac <br /> Sp Poorly-graded sands,gravelly sands, little or no fines <br /> Q more than 112 of :3 C <br /> a <br /> coarse fraction <br /> O c No 4 Sieve 3 SM Silty sands, sand-sift mixtures <br /> U � g <br /> SC Clayey sands, sand-clay mixtures <br /> a <br /> ML Inorganic sifts and very fine sands, rock flour, silty or clayey <br /> SILTS AND CLAYS fine sands or clayey silts with slight plasticity <br /> Liquid limit c 50 <br /> -� CL Inorganic Gays of low to medium plasticity,gravelly clays, <br /> Nsandy Gays,silty days, lean days <br /> p OL Organic sifts and organic silty clays of low plasticity <br /> W <br /> Z <br /> Q MH Inorganic nits, micaceous or diatomaceous fine sand or <br /> SILTS AND CLAYS silty sods <br /> WLiquid limit s 50 CH Inorganic clays of high plasticity,fat clays <br /> Z <br /> M OH Organic clays of medium to high plasticity,organic sifts <br /> HIGHLY ORGANIC SOILS PE Peat, humus, swamp sols with high organic contents <br /> SYMBOL LEGEND: <br /> x Portland Cement Sample saved for possible analysis <br /> © #3 Monterey Sand Stabilized water level <br /> ROMA <br /> Bentonite Pellets Ground water level encountered during dnlling <br /> Sampling Interval <br /> • $ Sample not recoverd ALTON <br /> G EOSCIENCE <br /> A% Concord, California <br />