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aGeoStrategies Log of Boring U—N <br /> PROJECT Unocal Station No 0187 LOCATION 437 E Miner Avenue, Stockton, CA <br /> GSI PROJECT NO 482704 CASING ELEVATION <br /> DATE STARTED 7/19/95 WL (ft bgs) 435 DATE 7/19/95 TIME 117 pm <br /> DATE FINISHED 7/19/95 WL (ft bgs) DATE TIME <br /> DRILLING METHOD 8 in hollow-stem auger TOTAL DEPTH 45 Feet <br /> DRILLING COMPANY Mitchell Drilling Environmental GEOLOGIST Steve Carter <br /> LLW <br /> M <br /> o to <br /> ILL <br /> Z z J fn <br /> s <br /> CIL LU W GEOLOGIC DESCRIPTION REMARKS <br /> cn --I _j z v <br /> x a a- <br /> 0 m: Q G <br /> m I ran ran (D m <br /> CL <br /> BaCkfilled to surface with <br /> neat cement <br /> CLAY (CL) -- very dark grayish brown (IOYR 3/2), <br /> 5- 0 38 UN-5 hard, damp, 100% clay, trace fine sand <br /> SAND WITH CLAY (SP-SC) - strong brown Q 5YR <br /> 10 0 21 UN-10 SC 4/8), medium dense, damp to moist, 90-95% fine to <br /> medium sand, 5-10% clay, charcoal fragments <br /> • f CL <br /> 1 <br /> CLAY WITH SAND (CL) - light olive brown (2 5Y <br /> 5/4), very stiff, damp, 70-80% clay, 20-30% fine <br /> 15 0 21 UN-15 sand, trace calcified nodules <br /> �Q 0 24 UN 20 SAND WITH CLAY (SP-SC) - dark yellowish brown <br /> (10YR 4/8), medium dense, damp to moist, 90% fine <br /> sand, 10% clay <br /> CL <br /> v <br /> CLAY (CL) - olive gray (5Y 4/2), very stiff, moist, <br /> 25 25 26 UN-25 100% clay, trace oxide staining <br /> color change to dark yellowish brown (10YR 4/0) at <br /> 29 5 feet, fine sand to 10%, oxide staining <br /> 30 8 29 UN-30 <br /> color change to olive brown (2 5Y 4/4) at 33 5 fee, <br /> 135 35 UN-35 <br /> fine sand increases to 10-20% <br /> 9 <br /> JOB NUMBER 4627 04 Page 1 Of 2 <br />