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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-10 <br /> JOBISITE NAME Former Shell Pipelines-Mountain House,NBH C&D DRILLING STARTED 20-Jan-09 <br /> LOCATION _ Tracy,CA DRILLING COMPLETED 20-Jan-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 21-Sep-09(13.0 gallons) <br /> DRILLER Gregg Drilling,C-57#485165 GROUND SURFACE ELEVATION 94.63 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 97.42 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(20-Jan-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 29.99 ft(30-Sep-09) 1 <br /> REMARKS Air knifed to 5 fbq. Above ground construction consisting of a 2 ft.Stovepipe. <br /> 0. O Z a W a Q CR p SOIL DESCRIPTION z H WELL DIAGRAM <br /> m0 uj pIx <br /> d U < W 7 0 W <br /> O <br /> 'rr SOD. 0.5 <br /> SILT(ML);brown(10YR 4/3);dry;40%clay,55%silt, <br /> 5%sand;medium plasticity. <br /> @ 3'-dark yellowish brown(10YR 4/4);dry;20%clay, <br /> 75%silt,5%fine sand. <br /> 0.0 6 MW-10-5 5 @ 5'-brown(10YR 5/3). <br /> Portland Type 1/11 <br /> 1.3 z MW-10-10 10 <br /> ML <br /> 0 <br /> 7 1.8 6 MW-10-15 15— SILT with Sand(ML);yellowish brown(10YR 5/4);dry; <br /> 0 20%clay,55%silt,25%fine to coarse sand;medium <br /> c� plasticity. Bentonite Seal <br /> LLa <br /> o Monterey Sand <br /> 10 #2/12 <br /> 1,8 16 MW-10-20 20 @ 20'-20%clay,75%silt,5%fine sand. <br /> i <br /> _o <br /> i <br /> ul <br /> ul <br /> 25.0 <br /> 1.81102 MW-10-25 25— Sandy SILT(ML);dark yellowish brown(10YR 4/4); <br /> MLS moist; 10%clay,60%silt,30%fine to coarse sand; <br /> — mediumlastic!tj' 27.0 <br /> o -- ----------------- <br /> Silty SAND(SM):dark yellowish brown(10YR 4/4); 2"-diam.,0.029' <br /> moist;30%silt,70%fine to coarse sand. slotted Schedule <br /> 40 PVC <br /> a 0.0 u MW-10-30 30 @ 30'-dark yellowish brown(10YR 4/6);wet. <br /> 3: SM •: <br /> SQ <br /> Lux <br /> s <br /> e @ 34'-10%clay,40%silt,50%fine to coarse sand. <br /> z 0. 0 ' Mw-10- 35- 35.0 <br /> p 34.5 <br /> Bottom of <br /> Boring @ 35.5 <br /> R ft <br /> J <br /> J <br /> 40 <br /> PAGE 1 OF 1 <br />