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Conestoga-Rovers ssociates 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 BORING/WELL NAME MW-15 _ <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House,NBH C&DDRILLING STARTED 03-Feb-09 <br /> LOCATION Tracy,CA DRILLING COMPLETED 04-Feb-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 25-Sep-09(8.5 gallons) <br /> DRILLER Gregg Drilling,C-57#485165 GROUND SURFACE ELEVATION 96.73 ft above msl <br /> DRILLING METHOD _ Hollow-stem auger TOP OF CASING ELEVATION 99.56 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(04-Feb-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 31.29 ft(30-Sep-09) 1 <br /> REMARKS Air knifed to 5 fbq <br /> F C7 <br /> U <br /> o n O I IL x w= ui a-0 SOIL DESCRIPTION Z: WELL DIAGRAM <br /> a L) < w 0 0w <br /> 0 <br /> SILT(ML):dark grayish brown(10YR 4/2);moist;25% <br /> clay,70%silt,5%fine to coarse sand;low to medium <br /> plasticity. <br /> 12 <br /> is 22 Mw-15-5 5 @ 5'-yellowish brown(10YR 5/6);dry;25%day,75% <br /> silt,5%fine sand. <br /> Portland Type VII <br /> 15 MW 15-10 10 ML @ 10'-yellowish brown(10YR 5/4);medium plasticity. <br /> u <br /> 0 <br /> 2. MW-15-15 15 @ 15'-30%clay,60%silt, 10%fine sand. <br /> 0 <br /> Bentonite Seal <br /> a <br /> � Monterey Sand <br /> 20.0 OW12 <br /> 12 Mw-1s2o 20 Silty SAND(SM):dark yellowish brown(10YR 4/4);dry, <br /> o '5%day,20%silt,75%fine to coarse sand. <br /> CL <br /> i <br /> 20 MW-15-25 25 <br /> SQ+ <br /> 0 SM 2"-diam.,0-020" <br /> Slotted Schedule <br /> 40 PVC <br /> r12 Q <br /> ;i M^ 15- 30 @ 30'-wet;20%silt,80%fine to coarse sand. i <br /> i <br /> 0 <br /> g <br /> m 9 <br /> < 1235.0 <br /> N34.5 35 SILT with sand(ML);dark yellowish brown(10YR 4/4); <br /> wet;20%clay,60%silt,20%fine sand;medium plasticity. <br /> T ML <br /> 0 <br /> O <br /> 0 MW-is 40 40.0 <br /> 39.5 <br /> a Bottom of <br /> o Boring @ 40 ft <br /> 0 <br /> J <br /> J <br /> J <br /> 45 <br /> PAGE 1 OF 1 <br />