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J <br /> GeoStrategles, Inc. Log of Boring U—L <br /> • PROJECT FORMER UNOCAL STATION 00187 LOCATION 437 E Miner Avenue, Stockton, CA <br /> GSI PROJECT NO 4827703 CASING ELEVATION <br /> DATE STARTED 7/6/94 WL (ft bgs) 475 DATE 7/6/94 TIME 1406 <br /> DATE FINISHED. 7/6/94 WL (fl bgs) 43 DATE 7/7/94 TIME 0745 <br /> DRILLING METHOD 8 in Hollow Stem Auger TOTAL DEPTH 50 5 Feet <br /> DRILLING COMPANY West Hazmat GEOLOGIST Steve Carter <br /> U- <br /> W <br /> M <br /> r o cn <br /> CL z v J GEOLOGIC DESCRIPTION REMARKS <br /> x a -j � z <br /> x a J <br /> CL <br /> BaCklilled to ground <br /> surface with neat cement <br /> 5 0 53 UL-8 5 CLAY (CL) - dark grayish brown (10YR 4/2), hard, <br /> damp, medium plasticity, 100% clay <br /> 10 7 13 UL-10 5 color change to dark Drown (IOYR 4/3), stiff, most <br /> 15 598 t9 UL-ES 5 color change to dark greenish gray (5GY 411), trace <br /> sand to 5-10%, product odor <br /> SC <br /> 20 192 33 UL-20 5 / CLAYEY SAND (SC) - dark olive gray (SYR 3/2), <br /> dense, moist, 75-80% fine to medium sand, 20-25% <br /> . f , CL clay product odor <br /> 25 649 3T UL-25 5 CLAY (CL) - dark gray (SY 4/1), hard,moist, medium <br /> Plasticity. 100% clay, product odor <br /> 30 224 32 UL-30 S color change to brown (10YR 5/3), product odor <br /> 35 240 UL-355 product odor <br /> 40 product odor <br /> 503 40 UL-415 J SP-SC <br /> f <br /> QS 32i 80 UL-45 5 I SAND WITH CLAY (SP-SC) - olive (5Y 4/3), very <br /> 85.. dense, moist, 85-90% fine to medium sand, 10-15% <br /> lclay, product odor I <br /> SC <br /> 493 71 UL-50 0 CLAYEY SAND (SC) - olive (5Y 4/3), very dense, <br /> 50 saturated, 70-75% fine to coarse sand, 25-30X <br /> clay trace to 5X fd! gravel, product odor <br /> 55 blows/tt converted <br /> erted to equivalent standard penetration <br /> 60 <br /> . 65 <br /> l0 <br /> JOB NUMBER 4827 703 Pa9a J of 1 <br />