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Conestoga-Rovers & Associates BORING/WELL LOG <br /> 19449 Riverside Drive, Suite 230 <br /> A Sonoma, CA 95476 <br /> Telephone: 707-935-4850 <br /> = y Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BORING/WELL NAME B-1158 <br /> JOB/SITE NAME Former Shell Pipeline DRILLING STARTED 15-Nov-11 <br /> LOCATION Cordes Ranch, Tracy California DRILLING COMPLETED 15-Nov-11 <br /> PROJECT NUMBER 060223 WELL DEVELOPMENT DATE (YIELD) NA <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 116.98 ft above mat <br /> DRILLING METHOD Direct Push TOP OF CASING ELEVATION NA <br /> BORING DIAMETER 2518 FF SCREENED INTERVAL NA <br /> LOGGED BY B. Siegfried DEPTH TO WATER (First Encountered) NA S7 <br /> REVIEWED BY J. Gaarder DEPTH TO WATER (Static) NA 1 <br /> REMARKS Airknifed to 5 ft. <br /> U m <br /> E F w Z = N = Ua <br /> Fn O x w cn O SOIL DESCRIPTION z H WELL DIAGRAM <br /> Q. U N w ov c0 0OW <br /> 0 <br /> Clayey SILT IML) ; very dark grayish brown (10YR 3/2); <br /> dry; 30% clay, 70% silt. <br /> @3' - moist. <br /> 0.5 ealsss <br /> 5 @4' - brownish yellow (1 OYR 6/6); moist; 100% silt. <br /> ML <br /> 0.5 s-1159-10 10 <br /> @11 ' - light yellowish brown (1 OYR 614); moist; 15% clay, <br /> 70% silt, 15% fine sand. <br /> 14.5 <br /> 0.5 s-115s-15 15 Silty SAND ISM) ; light yellowish brown (1 OYR 6/4); <br /> moist; 20% silt, 80% fine sand. <br /> SM <br /> Portland Type ]IN <br /> ta N 19.0 <br /> 0 0.5 8-115B-2020— <br /> SAND [SP) ; light yellowish brown (10YR 6/4); moist; 5% <br /> 0 20 silt 95% fine sand. 202 <br /> Clayey SILT (MLI ; light yellowish brown (10YR 6/4); <br /> w moist; 30'% clay, 70% silt. <br /> ML <br /> i� <br /> t <br /> 3 0.5 13-MB-25 25 25.3 <br /> SM IT. I Silty SAND (SM) ; light yellowish brown (10YR 614); <br /> ML moist 40% silt 60% fine sand. 26.6 <br /> Clavev SILT (ML) ; light yellowish brown (10YR 614); 27.3 <br /> SP moist 30% cla 70% silt. 28.0 <br /> SAND ISP) ght yellowish brown (10YR 6/4); moist; 5 <br /> silt 95% fine sand. <br /> 9 0 5 B-11513-so 30 Clayey SILT (ML) ; light yellowish brown (10YR 6/4); <br /> moist; 30% clay, 70% silt. <br /> ML <br /> N <br /> 0.5 e-115as5 35 <br /> 35.0 <br /> Bottom of <br /> a Boring @ 35 ft <br /> U' <br /> LL0 <br /> 40 <br /> PAGE 1 OF 1 <br />