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QS� GeoStrateg)es, Inc. Log of Boring U—L <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) 475 DATE 7/8/94 TIME 14 06 <br /> DATE FINISHED 7/6/94 WL (ft 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 /> W <br /> � m <br /> U- z c) a GEOLOGIC DESCRIPTION REMARKS <br /> Q w w -+ <br /> s (n -A � !2 c) <br /> CL a a W <br /> LU d 4 C7 4 <br /> O . ct <br /> - 4 W In U7 C7 En <br /> CL <br /> Backfilled to ground <br /> surface with neat cement <br /> 5 0 53 UL-8 5 CLAY (CL) - dark grayish brown OOYR 4/2), hard, <br /> damp, medium plasticity, 100% clay <br /> 10 7 13 UL-10 5 color change to dark brown (fOYR 4/3), stiff, moist <br /> �5 598 19 UL-IS 5 color change to dark greenish gray (5GY 4/1), trace <br /> sand to 5-10%, product odor <br /> SC <br /> 20 192 33 UL-20 5 / CLAYEY SAND (SC) - dark olive gray (5YR 3/2), <br /> dense, moist, 75-80X fine to medium sand, 20-25% <br /> . /! Ct clay product odor <br /> 25 849 3T UL-25 5 / CLAY (CL) - dark gray (5Y 4/1), hard, mals!, medium <br /> plasticity, 100% clay, product odor <br /> 30 224 32 UL-30 5 color change to brown (IOYR 5/3), product odor <br /> 35 240 UL-355 Product odor <br /> 40 product odor <br /> 503 40 UL-AIS J SP-SC <br /> f <br /> Q5 321 BO UL-A5 5 SAND WITH CLAY (SP--SC) - olive (5Y 4/3), very <br /> 8 5" dense, moist, 85-90% fine to medium sand, 10-15% <br /> clay product odor <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,25-30% <br /> clay, trace to 5% fill gravel, product odor <br /> (m - converted to equivalent standard penetration <br /> 55 blows/ft) <br /> 60- <br /> 65- <br /> 170-1 <br /> 70 <br /> JOB NUMBER 4827 703 Page 1 of 1 <br />