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Conestoga-Rovers & Associates BORING/VVELL LOG <br /> R _ 19449 Riverside Drive, Suite 230 <br /> Cc �� Sonoma, CA 95476 <br /> Telephone: 707-935-4850 <br /> = Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BORINGIWELL NAME B-91 <br /> JOBISITE NAME Former Shell Pipeline DRILLING STARTED 27-May-11 <br /> LOCATION Cordes Ranch, Tracy, California DRILLING COMPLETED 14-Jun-11 <br /> PROJECT NUMBER 060223 WELL DEVELOPMENT DATE (YIELD) NA <br /> DRILLER Cascade Drilling Co. GROUND SURFACE ELEVATION 122.41 ft above msl <br /> DRILLING METHOD Direct Push TOP OF CASING ELEVATION NA <br /> BORING DIAMETER 23/811 SCREENED INTERVAL NA <br /> LOGGED BY B. Siegfried DEPTH TO WATER (First Encountered) NA <br /> REVIEWED BY J. Gaarder DEPTH TO WATER (Static) NA 1 <br /> REMARKS Airknifed to 5 ft. <br /> N F v5U ~ � <br /> a o - W Z = <br /> a F w o. p SOIL DESCRIPTION ? WELL DIAGRAM <br /> a m0 ¢ OOW <br /> U o <br /> Clayey SILT (ML) : dark grayish brown (1 OYR 4/2); dry; <br /> 40% clay, 60% silt. <br /> @4' - light yellowish brown (1 OYR 6/4); moist; 10% clay, <br /> 90% silt. <br /> 0.0 8-91-5 5 ML @5' -Clayey SILT (ML) light yellowish brown (10YR Portland Type II <br /> 6/4); moist; 20% clay, 80% silt. <br /> 0.0 B-91.10 10 10.0 <br /> Bottom of <br /> Boring @ 10 ft <br /> u <br /> a <br /> ? 15 <br /> z <br /> a <br /> 20 <br /> �x <br /> U <br /> O <br /> O <br /> 25 <br /> PAGE i OF 1 <br />