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+ ' I <br /> �S! GeoStrategies, Inc. Log of Boring U—M <br /> PROJECT FORMER UNOCAL STATION #0187 LOCATION 437 E Miner Avenue, Stockton, CA <br /> GSI PROJECT NO 4827703 CASING ELEVATION <br /> DATE STARTED 7/6/94 WL (ft bgs) 45 DATE 7/6/94 TIME 1600 <br /> DATE FINISHED 7/6/94 WL (ft bgs) DATE TIME <br /> DRILLING METHOD 8 in Hollow Stem Auger TOTAL DEPTH 46 6 Feet <br /> DRILLING COMPANY West Hazmat GEOLOGIST Steve Carter <br /> w <br /> * w <br /> F O N <br /> E C 53 w v J GEOLOGIC DESCRIPTION REMARKS <br /> ►_- d 0. d U <br /> 0 <br /> 02 a M to in (] U) <br /> CL <br /> Backfilled to ground <br /> surface with neat cement <br /> 5 2! 27 UM-8 5 CLAY (CL) - yellowish brown (10YR 5/4), very stiff, <br /> dry to damp, medium plasticity, 100% clay, roots, <br /> rootholes <br /> �� 6 IS UM-10 5 damp to moist, fine sand 5-10%, light Fe-oxide <br /> mottling, rootholes <br /> 15 14 35 UM-155 hard, moist, 100% clay <br /> f SP-SC <br /> SAND WITH CLAY (SP-SC) - very dark gray 00YR <br /> 20 27 28 UM-20 5 % 3/1), medium dense, moist, 90-95% fine sand, 5-10% <br /> I� CL clay product odor <br /> 25 47 26 UM-25 5 CLAY (CL) - dark gray (5Y 4/1), to greenish gray <br /> (5BG 5/1), stiff, moist, medium plasticity, 100% clay, <br /> product odor <br /> 30 365 52 UM-305 hard, product odor <br /> 35 565 55 UM-355 Product odor <br /> 4� 399 51 color change to dark grayish brown, taint product <br /> 5P-5C odor <br /> f <br /> 45 538 23 UM-45 0 I SAND WITH CLAY (SP-SC) - very dark gray (2 5Y <br /> 302 g8 UM-45 5 / N3/0), medium dense, moist, 90-95% fine sand, 5-10% <br /> UM-48 5 clay, sand size appears to coarse downward, <br /> 8„ saturated at 45 feet, product odor <br /> 50— (N - converted to equivalent standard penetration <br /> blows/ft) <br /> 55 <br /> 60 <br /> to <br /> 65 <br /> IO <br /> JOS NUMBER 4827703 Page 1 of 1 <br />