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F <br /> Gettler—Ryan, Inc. Log of Boring U--8 <br /> PROJECT Former Unocal Service Station No 0123 LOCATION 1034 Central Avenue. Tracy, CA. <br /> GR PROJECT NO 240073 04 CASING ELEVATION <br /> DATE STARTED 11/13/00 WL (ft bgs) 982 DATE 11/13/00 TIME 1552 <br /> DATE FINISHED 11/13/00 WL (fl bgs) DATE TIME <br /> DRILLING METHOD 8 in Hollow Stem Auger TOTAL DEPTH 215 feet <br /> DRILLING COMPANY Cascade Drilling GEOLOGIST David Herzog <br /> W <br /> M <br /> * i of v"'i WELL DIAGRAM <br /> n U. z U GEOLOGIC DESCRIPTION <br /> LU LU <br /> X 0. 4 0. r <br /> o a a ¢ b <br /> o-- o. cn v, cn <br /> Asphalt - I foot thick A <br /> <^ —J'>1 m <br /> CL CLAY (CL) - very dark grayish brown (10YR 312), <br /> Z] 2! <br /> damp 90% clay 10% fine sand trace of fine gravels < a o <br /> ML SILT (ML) - brown (lOYR 413) moist, stiff 90% silt, n V <br /> 10% fine sand, few fine calcium carbonate nodules, <br /> trace of fine gravels <br /> 4 <br /> a <br /> 0 <br /> a <br /> 0 14 U-8-8 b <br /> a, — <br /> c _ <br /> U _ <br /> ML CLAYEY SILT (ML) - dark yellowish brown (10YR 414), C <br /> a moist, very stiff 70% spit 30% clay, abundant fine <br /> calcium carbonate veins <br /> ti <br /> c <br /> y <br /> 0 <br /> d = <br /> 0 17 U-8-11 <br /> u — m <br /> 12 a <br /> a <br /> m o <br /> -a <br /> 0 <br /> v <br /> c <br /> m <br /> t <br /> 0 17 U-8-18 Includes no fine calcium carbonate veins <br /> SM SILTY SAND WITH GRAVEL (SM) - olive brown (2 5Y <br /> 4/4), saturated, medium dense 50% fine to coarse <br /> sand, 30% silt, 20% fine gravel, trace of coarse <br /> gravels <br /> Caa <br /> 20 lIIII ° <br /> 0 28 U-8-21 !lIII <br /> Bottom of boring at 215 feet bgs <br /> (* - Converted to equivalent standard penetration <br /> blows/foot) <br /> 24- <br /> 28J <br /> JOB NUMBER 240073 04 Page J of I <br />