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Conestoga-Rovers&Associates BORING/WELL LOG <br /> 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 BORINGIWELL NAME MW-5C <br /> JOB/SITE NAME Former Shell Pipeline DRILLING STARTED 30-Aug-10 <br /> LOCATION . Cordes Ranch,Tracy DRILLING COMPLETED 01-Sep-10 <br /> PROJECT NUMBER 060223 WELL DEVELOPMENT DATE(YIELD) 13-Sep-10(177.50 gallons) <br /> DRILLER WDC Exploration and Wells GROUND SURFACE ELEVATION 120.86 ft above msl <br /> DRILLING METHOD Air-Rotary&Roto-Sonic Vibration(See Remarks) TOP OF CASING ELEVATION 123.44 ft above msl <br /> BORING DIAMETER 12"to 45 ft;6"below 45 ft. SCREENED INTERVAL 160 to 175 fbq <br /> LOGGED BY S. Phillips DEPTH TO WATER(First Encountered) NA <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 60.14 ft(16-Sep-10) 1 <br /> REMARKS Air-Rotary Casing Hammer(ARCH)to 45 ft.Roto-Sonic Vibration below 45 ft.Well completed in stovepipe;approximately 3 feet of stickup. <br /> rn H U ~ <br /> OD a a qq O SOIL DESCRIPTION z H 'I W' LL DIAGRAM <br /> a °°o ¢ w o c7 p w <br /> U U� <br /> Soils not logged-see MW-5A for lithology from 0 to 45 <br /> fbg. <br /> 5 <br /> ML <br /> 10 <br /> 12.5 <br /> 15 SM <br /> 17.5 <br /> 20 <br /> 8"Steel Conductc <br /> Casing <br /> 25 <br /> 0 <br /> o <br /> N <br /> W <br /> 30 <br /> D <br /> a <br /> W ML <br /> 0 <br /> a 35 <br /> c? <br /> z <br /> I <br /> N <br /> N <br /> � —40- <br /> 9 <br /> i <br /> m <br /> —45- <br /> - Sandy SILT(ML);brown(10YR 4/3);moist;65%silt, <br /> 04 35%fine sand. <br /> 0 <br /> N 49.5 <br /> 10 50 Silty SAND(SM);moist;35%silt,65%fine sand. <br /> SM 51.5 <br /> SILT with Sand(ML);moist;75%silt,25%fine sand. <br /> U <br /> 55 <br /> a @ 55.5'-90%silt,10%very fine sand. <br /> 0 <br /> J <br /> WJ <br /> S 60 <br /> Continued Next Page PAGE 1 OF 3 <br />