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Conestoga-Rovers & Associates BORING/WELL LOG <br /> 19449 Riverside Drive, Suite 230 <br /> Sonoma, CA 95476 <br /> r,. Telephone: 707-935-4850 <br /> Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BORING/WELL NAME B-1 15A <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 117.91 ft above mat <br /> DRILLING METHOD Direct Push TOP OF CASING ELEVATION NA <br /> BORING DIAMETER 2 5/8" SCREENED INTERVAL NA <br /> LOGGED BY B. Siegfried DEPTH TO WATER (First Encountered) NA SZ <br /> REVIEWED BY J. Gaarder DEPTH TO WATER (Static) NA 1 <br /> REMARKS Airknifed to 5 ft. <br /> Co <br /> U F rn <br /> on zl­ <br /> z a F a O n. o SOIL DESCRIPTION la— = WELL DIAGRAM <br /> n. Lu W <br /> m UU Q w O v � '-' O p_ <br /> O U UW <br /> O <br /> Clayey SILT (ML) ; very dark grayish brown (1 OYR 3/2); <br /> dry; 30% clay, 70% silt. <br /> ML @4' - light yellowish brown (10YR 6/4); moist; 5% clay, <br /> 0.5 e-11sAs 5 95% silt. <br /> 8.5 <br /> SAND (SP1 ; light yellowish brown (10YR 6/4); moist; 5 <br /> 0.5 B-MA-io 10 sP silt, 95% fine to medium sand. <br /> 12.0 <br /> Silty SAND (SM) ; light yellowish brown (10YR 614); <br /> SM moist; 30% silt, 70% fine sand. <br /> 0.5 B-115A-15 95 15.0SP ! SAND (SP) ; light yellowish brown (10YR 6/4Imoist; <br /> 16.0 <br /> silt 95% fine sand. <br /> Silty SAND (SM) ; brownish yellow (10YR 6/ <br /> 30% silt, 70% fine sand. Portland Type IIN <br /> SM `. <br /> p 0,5 8-115A-20 20 <br /> 21 .0 <br /> Clayey SILT (ML) ; yellowish brown (10YR 5/4); moist; <br /> w <br /> 20% clay, 80% silt. <br /> @23'- 10% clay, 90% silt. <br /> y 0.5 B-115A45 25 ML <br /> @28.2' - Sandy SILT (ML) ; yellowish brown 00YR 5/4); 28.8 <br /> ML moist 70% silt 30% fine sand. 29.8 <br /> M 0.5 B-115A-3o 30 SP SAND (SP1 ; yellowish brown (10YR 5/4); moist; 100% 29 <br /> sand stringer. 31 .3 <br /> SILT (ML) ; yellowish brown (10YR 5/4); moist; 10 <br /> i ML cla 90% silt. <br /> SAND (SP) ; yellowish brown (I OYR 514); moist; 100% 33.2 <br /> L30.3' - <br /> stringer. 33.6 <br /> ML 5% silt 95% fine sand.0.5 B-115Aa5 35 SILfcla7nO/ <br /> tyellowish brown (10YR 6/4); 35.0 <br /> 30% silt. <br /> SAND (SP) ; wish brown (10YR 6/4); moist; rr <br /> 5% Bottom of <br /> silt 95% fine Boring @ 35 ft <br /> Clayey SILt yellowish brown (1 OYR 6/4); <br /> g moist' 30% silt. <br /> 40 <br /> PAGE 1 OF 1 <br />