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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-4 <br /> JOB/SITE NAME Former Shell Pipeline DRILLING STARTED 16-Jul-10 <br /> LOCATION Cordes Ranch,Tracy DRILLING COMPLETED 16-Jul-10 <br /> PROJECT NUMBER 060223 WELL DEVELOPMENT DATE(YIELD) 17-Aug-10(37.70 gallons) <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 120.78 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 123.41 ft above msl <br /> BORING DIAMETER 11" SCREENED INTERVAL 30 to 45 fbg <br /> LOGGED BY S.Phillips DEPTH TO WATER(First Encountered) 37.0 ftNA <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 36.00 ft(23-Aug-10) 1 <br /> REMARKS Well completed in stovepipe;approximately 3 feet of stickup. <br /> U) U °' <br /> OD a w O SOIL DESCRIPTION z= BVI/ LL DIAGRAM <br /> a m0 < W o C7 pW <br /> 0 <br /> SILT(ML);very dark grayish brown(10YR 3/2);dry; <br /> 40%clay,60%silt. <br /> 0 @.5'-to 5'hardpan. <br /> 0 MW-4-s 5 <br /> ML <br /> 5.3 MW-4-10' 10 @110'-SILT with Sand(ML);dark yellowish brown <br /> (10YR 4/4);dry;75%silt,25%very fine sand. <br /> 0 <br /> o <br /> N <br /> O] <br /> 0 <br /> Pordand Type 1/II <br /> LULL <br /> 0 <br /> a. <br /> z4.0 MW-4-1s, 15— <br /> M <br /> N <br /> 17.5 <br /> o Silty SAND(SM);very dark grayish brown(10YR 3/2); <br /> to dry;40%silt,60%sand. <br /> 0 <br /> 0 <br /> N 203 MW4-20' 20 SM •: <br /> 0 <br /> a <br /> x <br /> 22.5 <br /> = SILT with Sand(ML);dark yellowish brown(10YR 4/4); <br /> a dry;75%clay,25%very fine sand. <br /> 0 <br /> 0 <br /> J <br /> J <br /> J <br /> 25 <br /> Continued Next Page PAGE 1 OF 2 <br />