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Conestoga-Rovers&Associates BORING/VVELL LOG <br /> N 19449 Riverside Drive,Suite 230 <br /> Sonoma,CA 95476 <br /> Telephone: 707-935-4850 <br /> Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BORING/WELL NAME MW-14B <br /> JOBISITE NAME Former Shell Pipeline DRILLING STARTED 08Jul-11 <br /> LOCATION Cordes Ranch TracyCalifornia DRILLING COMPLETED 12-Ju1.11 <br /> PROJECT NUMBER 060223 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER Cascade Drilling Co GROUND SURFACE ELEVATION 117.42 ftabovemsl <br /> DRILLING METHOD Roto-Sonic vibration TOP OF CASING ELEVATION 120.66 ft above msl <br /> BORING DIAMETER 6' SCREENED INTERVAL 110 to 125 fbg <br /> LOGGED BY B.Siegfried DEPTH TO WATER(First Encountered) 42.0 It(12-Jul-11) S• <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) NA <br /> REMARKS <br /> E <br /> a 3 Z w m 3 x 0 SOIL DESCRIPTION0 ( LL DIAGRAM <br /> O <br /> MC, ag. p Q_ C6 � ( I <br /> SILT(ML);brown(10YR 513);dry;40%clay,60%silt. <br /> @ 2'-yellowish brown(10YR 514);100%silt. <br /> 5 <br /> ML <br /> 0.0 ~a4e- 1t0 10'-yellowish brown(10YR 5/6);moist;20%clay,80% <br /> silt. <br /> 12'-100%silt 12.6 <br /> silty SAND(SM);yellowish brown(10YR 5/6);moist; <br /> 5%clay,15%silt,80%fine to medium sand. <br /> SM <br /> 0.0 nm-i4e' 15 <br /> 5 <br /> 16.0 <br /> SILT(ML);dark yellowish brown(10YR 4/6);moist;30% <br /> o ML clay,70%sill. <br /> 18.5 <br /> � Silty SAND(SM):yellowish brown(10YR 5/6);moist; <br /> w SM 30%silt,70%fine to medium sand. <br /> 0 20 21.0 <br /> MW0, <br /> 0.0 sa •: ''. <br /> GRAVEL(GPI;yellowish brown(10YR 5/6);moist; <br /> GP °Q° 10D%fine gravel. 22.5 <br /> @ 22.6-42.5'-no recovery. <br /> 25 <br /> i <br /> 30 <br /> v <br /> ZI <br /> a <br /> L <br /> 35 <br /> 5 <br /> Continued Next Page PAGE 1 OF 4 <br />