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GSI GeoStrateg)esr Inc. Log of Boring U-Y <br /> PROJECT FORMER UNOCAL STATION #0187 LOCATION 437 E Miner Avenue, Stockton, CA <br /> GSI PROJECT NO 4827 703 CASING ELEVATION <br /> DATE STARTED 7/8/94 WL (ft bgs) DATE TIME <br /> DATE FINISHED 7/8/94 WL (ft bgs) DATE TIME <br /> DRILLING METHOD 8 in Hollow Stem Auger TOTAL DEPTH 16 S Feet <br /> DRILLING COMPANY West Hazmat Drilling GEOLOGIST Steve Carter <br /> ur <br /> M LO <br /> x <br /> a � z v � GEOLOGIC DESCRIPTION <br /> REMARKS <br /> X n cn a _ <br /> 0. a a <br /> - f <br /> w y oa a cc o <br /> o a m rn m (D m <br /> CL <br /> 6aCxtd[ed to gtpi]hd <br /> surface with neat cement <br /> 5 Fill - CLAY (CL) - very dark brown (10YR 3/2), stiff, <br /> 20 12 UI-6 5 - CL damp,low plasticity, 80-85% clay, 10-15% fine to <br /> medium sand, 5% fine gravel back fragments, <br /> charcoal <br /> 30 0 24 UI-11 5 CLAY (CL) - black (IOYR 2/1), stiff, damp, low <br /> plasticity, 100% clay <br /> 15 color change to brown (fOYR 5/3), becoming very <br /> 0 48 UI-16 5 <br /> stiff, moist, 5-10% fine sand, light Fe-oxide staining <br /> ' <br /> SANDY CLAY (CL) - dark brown 00YR 4/3), hard, <br /> moist,low plasticity 70-75% clay 25-30% fine to <br /> 20 coarse sand lightly mottled with t=e-oxide staining <br /> (x - converted to equivalent standard penetration <br /> blows/ft} <br /> 25 <br /> 30 <br /> 35 <br /> 40 <br /> 45 <br /> 50 <br /> 55 <br /> 60 <br /> 65 <br /> L70 <br /> Page IofI <br /> JOB NUMBER 4827 703 <br />