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Conestoga-Rovers&Associates BORING/WELL LOG <br /> L�47i <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-11 <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House,NBH C&D DRILLING STARTED 04-Feb-09 <br /> LOCATION Tracy,CA DRILLING COMPLETED 21-Apr-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 25-Sep-09(67.5 gallons) <br /> DRILLER Gregg Drilling,C-57#485165 GROUND SURFACE ELEVATION 97.09 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 99.74 ft above msl <br /> BORING DIAMETER 10 SCREENED INTERVAL 23 to 38 fbq <br /> LOGGED BY S. Phillips DEPTH TO WATER(First Encountered) 28.0 ft(21-Apr-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 30.66 ft(30-Sep-09) 1 <br /> REMARKS Air knifed to 5 fbq. Above ground construction consisting of a 2 ft.Stovepipe. <br /> CL <br /> O a w ¢p SOIL DESCRIPTION z= WELL DIAGRAM <br /> J <br /> 0 m OU Q W U (� W <br /> U U� <br /> SILT(ML);brown(7.5YR 4/2);dry;35%clay,55%silt, <br /> 10%fine to medium sand;medium plasticity. <br /> ML <br /> 5.0 <br /> 0.0 10 MW-11-5 5 SILT(MLL;brown(7.5YR 4/2);dry;35%clay,55%silt, <br /> 12 10%fine to medium sand;medium plasticity. <br /> ML <br /> 10.0 Portland Type 1/110.0 14 MW-11-10 10 SILT(ML);brown(7.5YR 4/2);dry;35%clay,55%silt, <br /> 76 10%fine to medium sand;medium plasticity. <br /> 0.0 13 MW-11-15 15 ML <br /> 0 12 <br /> 0 <br /> H <br /> O <br /> 10 20 20'0 Bentonite Seal <br /> LL 0.0 17 Mw 11-20 SILT(ML);brown(7.5YR 4/2);dry;35%clay,55%silt, <br /> 0 10 10%fine to medium sand;medium plasticity. <br /> a ML <br /> c0 <br /> N 25.0 <br /> to 0 0.0 a MW-11-25 25 SILT(ML);brown(7.5YR 4/2);moist;35%clay,55% <br /> F 11 silt, 10%fine to medium sand;medium plasticity. <br /> 0 <br /> cwi ML S <br /> + 30.0 Monterey Sand <br /> N 0.0 s MW-11-25 30 Silty SAND(SM);brown(7.5YR 5/4);wet; 15%clay, 1 4vdiam.,0.020" <br /> 35%silt,50%fine to coarse sand. <br /> i Slotted Schedule <br /> SM 40 PVC <br /> 0 <br /> rn <br /> D: <br /> a s 35.0 <br /> 9 0.0 5 M34:5' 35 Silty SAND(SM);brown(7.5YR 5/4);wet; 15%clay, <br /> Lu 35%silt,50%fine to coarse sand. <br /> W <br /> �' SM <br /> 0 <br /> 0 <br /> 0 40 40.0 Bottom of <br /> Boring @ 38 ft <br /> 0 <br /> a <br /> C7 <br /> 0 <br /> J <br /> J <br /> J <br /> 45 <br /> PAGE 1 OF 1 <br />