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c i ` <br /> Conestoga-Rover; ;sociates <br /> 19449 Riverside D�,_,,,Suite 230 BORINGIWELL LOG <br /> " ✓°\ Sonoma,CA 95476 <br /> Telephone: 707-935-4850 <br /> Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BORINGIWELL NAME MW-12 <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House NBH C&D DRILLING STARTED 20-Jan-09 <br /> LOCATION Tracy,CA DRILLING COMPLETED 21-Apr-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) _ 21-Sep-09(38.0 gallons) <br /> DRILLER Grego Drilling,C-57#485165 GROUND SURFACE ELEVATION 93.01 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 95.90 ft above msl <br /> BORING DIAMETER 8 SCREENED INTERVAL 23 to 38 fbq <br /> LOGGED BY S.Phillips DEPTH TO WATER(First Encountered) 28.0 ft(21-Apr-09) Q <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 26.91 ft(30-Sep-09) 1 <br /> REMARKS Air knifed to 5 fbg Above around construction consisting of a 2 ft Stovepipe <br /> E <br /> m O x w rn Q SOIL DESCRIPTION ¢= WELL DIAGRAM <br /> F- <br /> a. U < LU p a <br /> U0 <br /> SILT JMLj dark greenish gray(10GY 3/1);dry;35% <br /> day,55%silt,10%fine to medium sand;medium <br /> ML plasticity. <br /> Mw-12-5 5 SILT(MLI;yellowish brown(10YR 516);dry;10%clay, 5.0 <br /> 1. aY. <br /> 55%silt,35%very fine sand;medium plasticity <br /> ML <br /> Mw-1z•10 10 SILT(ML);yellowish brown(10YR 5/6);dry;20%clay, 10.0 Portland Type I/11 <br /> 75 40%silt,35%very fine sand;medium plasticity <br /> ML <br /> ii MW-12-16 15 15.0 <br /> SILT(ML)•yellowish brown 10YR 516 d 20%clay,15 40%silt,35%very fine sand;medium plasticity <br /> ML <br /> r <br /> LL <br /> D ie MW-12-20 20 20.0 Bentonite Sea! <br /> Silty SAND(SM):yellowish brown(10YR 5/6); moist; <br /> 0 1' 35%silt,65%fine to medium sand. <br /> IL' SM <br /> c? <br /> i� <br /> g MW-12-25 25 25.0 <br /> Silty SAND(SM) yellowish brown(10YR 516); wet; <br /> b 1J 35%silt,65%fine to medium sand. <br /> g sw Q <br /> oMW-12-30 30 30.0 _ M2o/'t2erey Sand <br /> sw WI SAND ISM;brown(10YR 413);wet;100%fine to Y dam.,Schedui <br /> g coarse sand. 31.2 <br /> o SIL_ T IML);brown(10YR 4/3);wet;20%sift,80%fine to 4o PVC <br /> S coarse sand. <br /> = ML <br /> MW-12-35 <br /> w <br /> S <br /> h <br /> 38.0 <br /> 0 <br /> 40 <br /> L Bottom of <br /> o Boring @ 38 ft <br /> a <br /> C7 <br /> O <br /> J <br /> J <br /> 45 <br /> PAGE 1 CF 1 <br />