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�l <br /> aGeoStrategies Log of Boring U-6 <br /> PROJECT Unocal Station No 0187 LOCATION 437 E Miner Avenue, Stockton, CA <br /> GSI PROJECT NO 482704 CASING ELEVATION 1164 feet above MSL <br /> DATE STARTED 7/20/95 WL (ft bgs) 53 5 DATE 7/20/95 TIME 916 am <br /> DATE FINISHED 7/20/95 WL (ft bgs) 4085 DATE 7/31/95 TIME 830 am <br /> DRILLING METHOD 8 in hollow-stem auger TOTAL. DEPTH 55 Feet <br /> DRILLING COMPANY Mitchell Drilling Environmental GEOLOGIST Steve Carter <br /> w <br /> CDm <br /> r Ui WELL DIAGRAM <br /> x A NJ J GEOLOGIC DESCRIPTION <br /> w a 92- CL <br /> LUx -CC <br /> m tan ran ( N <br /> CL <br /> i <br /> 0 <br /> U <br /> FILL - building debris consisting of mortar and brick <br /> 5 0 18 UB-5 fragments <br /> CLAY (CL) - dark yellowish brown (10YR 4/4), stiff, <br /> damp to most, 80-95% clay, 5-10% fine sand, sand <br /> 10 0 17 UB-10 increases downward in sample to 30-40% <br /> sand decreases to trace <br /> �5 20 20 UB-15 <br /> i� Cp W <br /> C v U <br /> � D <br /> Cb <br /> SAND WITH CLAY (SP-SC) - dark yellowish brown <br /> 16 24 UB-20 (tOYR 3/6), medium dense, damp to moist, g0-95% CZ <br /> 20 fine sand, 5-10X clay <br /> N <br /> SP <br /> SAND (SP) - very dark grayish brown (2 5Y 3/2), <br /> 25 0 26 UB-25 medium dense, damp to most, 100% fine sand <br /> color change to black (2 5Y N2/0), becomes dense, <br /> sand becomes fine to medium at 29 3 feet <br /> 30 150 40 1.16-30 CL <br /> 41w0 <br /> SANDY CLAY (CL)- olive brown (2 5Y 4/2), hard, <br /> moist, 70-80% clay, 20-30% fine sand, sand k <br /> 35 0 48 U8-35 increases downward in sample <br /> JOB NUMBER 4827 04 Page l of 2 <br />