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•ti Conestoga-Rovers sociates <br /> ' 19449 Riverside Drive, Suite 230 BORING/VVELL LOG <br /> Sonoma, CA 95476 - <br /> Telephone: 707-935-4850 <br /> Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BORINGMELL NAME MW-16 <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House NBH C&DORILLING STARTED 19-12n-09 <br /> LOCATION Tracy,CA DRILLING COMPLETED 04-Feb-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 25-Sep-09(16.5 gallons) <br /> DRILLER Gregg Drilling,C-57#485165 GROUND SURFACE ELEVATION 96.84 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 100.14 ft above msl <br /> BORING DIAMETER 10" SCREENED INTERVAL 20 to 34.9 fbq <br /> LOGGED BY S.Phillips DEPTH TO WATER(First Encountered) 28.0 ft(04-Feb-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 31.25 ft(30-Sep-09) 1 <br /> REMARKS Air knifed to 5 fba <br /> UCX F_ uj z F- = vj V h <br /> CL <br /> O D W C6 <br /> Ja ° O SOIL DESCRIPTION F-= WELL DIAGRAM <br /> a mU ¢ w pa <br /> N U WD <br /> SILT(ML);very dark grayish brown(10YR 3/2);moist; <br /> 25%clay,70%silt,5%fine to coarse sand;low to medium <br /> plasticity. <br /> 10 <br /> 0.0 11 17 Mw-i6 s 5 @ 5'-light yellowish brown(10YR 6/4);dry;10%clay, <br /> 80°%silt,10%fine sand;medium plasticity. <br /> Portland Type I/II <br /> ++ <br /> 0.0 18 nnw-is�o t 0 ML @ 10'-10%clay,80%silt,10%fine to coarse sand. <br /> 0 <br /> o +2 <br /> 0.0 le Mw-18.15 15 @ 15'-25%clay,60%sill,15%fine to coarse sand. <br /> 0 <br /> Bentonite Seal <br /> a <br /> w <br /> In ' <br /> for Monterey Sand <br /> 0.0 7; Mw+ s p 20 Sandy SILT(ML);brown(10YR 5/3);dry;25%clay, —— 20.0 e2n2 <br /> 45%silt,30%fine to coarse sand;medium plasticity. <br /> MLS <br /> T.0 <br /> w <br /> 25.0 <br /> 8 0.0 z Mw-1s 2, 25 Silty SAND(SM)•brown(t 0YR 5/3);moist;20%clay, <br /> N 30%silt,50%fine to coarse sand. <br /> SM 2"-diarn.,0.020" <br /> Q Slotted Schedule <br /> 40 PVC <br /> 30.0 <br /> of 0.0 1; Mw-ls-ao 30 SAND(SW);brown(1 DYR 4/3);wet;100%fine to <br /> V coarse sand. 1 <br /> SW <br /> i 6 <br /> �g e <br /> 0Wi <br /> 0.0 6 mr, 35 <br /> z 34,5 <br /> 35.0 <br /> 0 <br /> N <br /> _o Bottom of <br /> a Boring @ 35 ft <br /> 0 <br /> 0 <br /> J <br /> 40 <br /> PAGE I OF t <br />