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Drilling Log <br /> GROUNDWATER Soil Boring G <br /> BBMTECHNOLOGY <br /> . Project STHL/9110 Thorton Rd Owner The Southland Corporation <br /> Location Stockton, CA Project No 020301211 Date drilled 1/13/93 <br /> o' <br /> , a " Description <br /> of ' L <br /> n� , a au as U <br /> Q•. ag a �„ A� sn (Color, Texture, Structure) <br /> Nmx o a Trace < IOX, Little IOX to 20%. Some 20% to 35%, And 35% to 50% <br /> 24 7 Clayey SAND. tan, about 70% fine sand, about 20% clay, about 10% silt <br /> 17 (moist, no hydrocarbon odor, dense) <br /> 0 25 28 <br /> Sc <br /> 26 <br /> 28 SAND, tan/brown, about 50% coarse sand, about 20% fine sand, about 15% <br /> pebbles, about 10% silt, about 5% clay (moist, no hydrocarbon odor, medium <br /> 15 dense) <br /> 30 1s <br /> 0 30 is SW <br /> 32 <br /> 34 e <br /> 12 <br /> 0 35 1s Clayey SILT brown about 70% silt, about 30% clay (slightly moist, no <br /> 36 hydrocarbon odor, very stiff) <br /> 38 <br /> 6 ML <br /> 40 <br /> p qp 13 (Stiff) <br /> - 42 - <br /> 44 - <br /> Ib (Very Stiff) <br /> 0 as 20 <br /> 46 I Ended boring at approximately 45 5 feet below grade <br /> I <br /> 48 <br /> 50 <br /> 52 a <br /> - 54 - <br /> - 56 <br /> 03/11/19931tnfog-ian93 Page 2 of 2 <br />