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Conestoga-Rovers&Associates BORING/WELL LOG <br /> r_ 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-8 - <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House,NBH CBD DRILLING STARTED 21-Jan-09 <br /> LOCATION Tracy,CA DRILLING COMPLETED 03-Feb-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 25-Sep-09(13.0 gallons) <br /> DRILLER Greg Drilling,C-57#485165 GROUND SURFACE ELEVATION 95.22 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 98.52 ft above msl <br /> BORING DIAMETER 10" SCREENED INTERVAL 20 to 34.9 fbq <br /> LOGGED BY S. Phillips DEPTH TO WATER(First Encountered) 30.0 ft(03-Feb-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 30.44 ft(30-Sep-09) 1 <br /> REMARKS Air knifed to 5 fbq. Above ground construction consisting of a 2 ft.Stovepipe. <br /> U <br /> 8 O a w l Q p SOIL DESCRIPTION z= WELL DIAGRAM <br /> n m0Q w p pa <br /> W <br /> � UD <br /> SILT(ML);brown(7.5YR 4/2);dry;20%clay,75%silt, <br /> 5%fine to coarse sand;low plasticity. <br /> @ 1.5'-30%clay,65%silt,5%fine to coarse sand;low to <br /> ML medium plasticity. <br /> 0.0 11 MW-8-5 5 __ ______________________ ___ 5.0 <br /> Sandy SILT(ML);brown(10YR 5/3);70%silt,30%fine <br /> 16 to coarse sand;low plasticity. <br /> MLS <br /> Portland Type 1/II <br /> 14 <br /> ,e 10 10.0 <br /> 0.0 MW-8-10 SILT(ML);light yellowish brown(10YR 6/4);dry;30% <br /> clay,60%silt, 10%fine sand;medium plasticity. <br /> 10 <br /> 0.0 73 MW-8-15 15 @ 15'-moist. <br /> 0 <br /> Bentonite Seal <br /> ML <br /> D <br /> L <br /> "' s Monterey Sand <br /> #2/12e <br /> 0.0 z MW-8-20 20 SILT with Sand(ML);light yellowish brown(10YR 6/4); <br /> N moist;25%clay,40%silt,25%fine to coarse sand; <br /> N medium plasticity. <br /> 0 <br /> i <br /> ❑ a <br /> __ _ ____________________ ___ 25.0 <br /> CD 0.0 14 Mw 8-2s 25 Silty SAND(SM);yellowish brown(10YR 5/6);moist; <br /> N 30%clay,30%silt,40%sand. <br /> 2"-diam.,0.020" <br /> Slotted Schedule <br /> N <br /> 40 PVC <br /> N s SM <br /> 0: 0.0 70 MW-8-30 30 <br /> x @ 30'-wet;5%clay,30%silt,65%sand. <br /> U <br /> W <br /> 2 <br /> y <br /> a a _____ __ ___R4 <br /> __________ 34.0 <br /> o 's Mw a ML SILT(ML);yellowish brown(10YR 5/4);wet;25%clay, 35.0 <br /> z 0.0 s 35 65%silt 10%fine sand high lastici .. <br /> co <br /> Bottom of <br /> a Boring @ 35 ft <br /> c0 <br /> 0 <br /> J <br /> J <br /> J <br /> 40 <br /> PAGE 1 OF 1 <br />