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�S� GeoStrateg(es, 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 1500 <br /> DATE FINISHED 7/6/94 WL (ft bgs) DATE TIME <br /> DRILLING METHOD 8 in Hollow Stem Auger TOTAL DEPTH 466 Feet <br /> DRILLING COMPANY Nest Hazmat GEOLOGIST Steve Carter <br /> LLW <br /> M <br /> * D r o <br /> D <br /> CL LL � GEOLOGIC DESCRIPTION REMARKS <br /> J <br /> q, p O <br /> O d ca fn fall U U) <br /> CL <br /> Back fdled to ground <br /> surface with neat cement <br /> 5-: 21 27 UM-8 5 CLAY (CL) - yellowish brown (lOYR 5/4), very stiff, <br /> dry to damp, medium plasticity, 100% clay, roots, <br /> roolholes <br /> 10 8 18 UM-10 5 damp to moist, fine sand 5-10X, light Fe-oxide <br /> mottling, rootholes <br /> 15 14 35 UM-15 5 hard, moist. 100% clay <br /> ,l SP-SC <br /> / SAND WITH CLAY (SP-SC) - very dark gray (IOYR <br /> 20 27 28 UM-20 5 / 3/1), medium dense, moist, 90-95% fine sand, 5-10% <br /> CL clay, product odor <br /> 25 47 2s 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 /> 30 385 52 UM-30 5 hard, product odor <br /> 35 585 55 UM-35 5 product odor <br /> 4� 398 51 color change to dark grayish brown, faint product <br /> / SP-SC odor <br /> QS 538 23 UM-45 0 / SAND WITH CLAY (SP-SC) - very dark gray (2 5Y <br /> 302 98 UM-45 5 f N3/0), medium dense, moist, 90-95% fine sand, 5-10% <br /> 8 UM-46 5 clay sand size appears to coarse downward, f <br /> saturated at 45 feet, product odor <br /> 50- <br /> - (It - converted to equivalent standard penetration <br /> blows/ft) <br /> 55- <br /> 65- <br /> 70— <br /> JOB <br /> 56570JOB NUMBER 4827 703 Page 1 of 1 <br />