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Settler--Ryan. Inc. Log of Boring B-5 <br /> PROJECT Former Unocal Service Station No 0123 LOCATION 1034 Central Avenue, Tracy, CA <br /> GR PROJECT NO 240073 03 SURFACE ELEVATION <br /> DATE STARTED 01/12/00 WL (ft bgs) DATE TIME <br /> DATE FINISHED 01/12/00 WL (ft bgs) DATE TIME <br /> DRILLING METHOD 2 in Geoprobe TOTAL DEPTH 16 feet <br /> DRILLING COMPANY Vironex Inc GEOLOGIST David Herzog <br /> w <br /> M <br /> in <br /> z w v a GEOLOGIC DESCRIPTION REMARKS <br /> 6 d ri 4_ J <br /> 11..!) M: X Q e-+ <br /> wa a X o <br /> o cn (n LO cn <br /> ASPHALT - 4 inches thick <br /> ML SILT (ML) - brown to dark brown OOYR 4/3) dry, 100% silt, trace of <br /> fine gravel <br /> Boring baCkf ilea <br /> With neat Cement <br /> CL SILTY CLAY (CL) - brown to dark brown (IOYR 4/3), moist, plastic TO% from to - 5 feet <br /> 3 clay, 30% sill, trace of calcium carbonate and iron oxide (veins) bgs compacted <br /> y cuttings from 5 — <br /> 0 5 feet bgs and <br /> asphalt patch from <br /> 0 5 feet bgs to <br /> rx <br /> ground surface <br /> 8-5-5 CL SILTY CLAY with SAND (CL) - dark yellowish brown 0OYR 4/4), moist, <br /> plastic 60% clay, 25% silt, 15% fine sand <br /> 6 <br /> ML SANDY SILT (ML) - dark yellowish brown (IOYR 4/4), moist 60% silt, <br /> 30% sand, 10% clay, abundant iron oxide stained rootlets, trace of <br /> 8-5-7 calcium carbonate nodules (<i mm) <br /> 8-5-8 Becomes saturated at 8 5 feet <br /> 9 <br /> Color changes to greenish gray (56 5/1), strong hydrocarbon odor, <br /> trace of roots and rootlets <br /> 12 <br /> 15 <br /> SM SILTY SAND (SM) - brown 00YR 5/3), saturated, 80% sand, 20% silt, no <br /> odor <br /> Bottom of boring at 16 feet bgs <br /> 18- <br /> 21- <br /> JOB NUMBER 240073 03 Page 1 of 1 <br />