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Conestoga-Rovers sociates <br /> O "'`' II 19449 Riverside Drive,Suite 230 BORING/WELL LOG <br /> Sonoma, CA 95476 <br /> Telephone: 707-935-4850 <br /> Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BOR)NG/WELL NAME MW-4 <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House NBH C&D DRILLING STARTED 19-Jan-09 <br /> LOCATION Tracy,CA DRILLING COMPLETED 20-Jan-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 25-Sep-09(17.5 gallons) <br /> DRILLER Gregg Drillinn.C-57#485165 GROUND SURFACE ELEVATION 94.22 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 96.61 ft above msl <br /> BORING DIAMETER 8" SCREENED INTERVAL 20 to 34.9 fbq <br /> LOGGED BY S.Phillips DEPTH TO WATER(First Encountered) 28.0 ft(20-Jan-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 29.25 ft(30-Sep-09) 1 <br /> REMARKS Air knifed to 5 fba. Above around construction consisting of a 2 ft Stovepipe <br /> 0 <br /> o- ?IU— W z I ci <br /> M a ~ W Q O� SOIL DESCRIPTION = WELL DIAGRAM <br /> O m0 2 X U �-� Zt— <br /> U Cl) W = (� O W <br /> U W <br /> {" SOD. <br /> SILT with Sand(ML);grayish brown(10YR 5/2);dry; 0.5 <br /> ML 35%cly,55%silt,20%sand;medium plasticity. <br /> 4.0 <br /> 5 Silty SAND(SM);dry;30%clay,30%silt,40%sand. <br /> 0.0 6 MW--5 @ 5'-dark yellowish brown(10YR 4/4);25%silt,75% <br /> sand. <br /> SM <br /> Portland Type 1/11 <br /> a 10 — — _ 10.0 <br /> 0.0 4 MW-4-10 SILT with Sand(ML);dark yellowish brown(10YR 4/4); <br /> dry; 15%clay,65%silt,20%sand;medium plasticity. <br /> 0 <br /> 0 2 <br /> 0.0 a MW-4-1515 ML @ 15'-moist. <br /> 0 <br /> 0 <br /> Bentonite Seal <br /> D <br /> W <br /> W <br /> 0 4 Monterey Sand <br /> 20.0 #2112 <br /> q 0.0 16 <br /> "_4_2,, 2D Sandy SILT(MIL);dark yellowish brown(10YR 4/4); <br /> N moist;15%clay,55%silt,30%sand;medium plasticity. <br /> N <br /> N <br /> MLS ' <br /> i <br /> 0 <br /> Lu <br /> g s <br /> 0.0 Mw a-zs — --_________ 25.0 <br /> 9 <br /> Silty SAND(SM);dark yellowish brown(10YR 4/4); <br /> moist;15%clay,35%silt,50%sand. <br /> N <br /> O <br /> 8 SM S 2%diam.,0.020" <br /> - Slotted Schedule <br /> $ 2 = 40 PVC <br /> 2 MW-4-30 30 — -- — ———— 30.0 ' <br /> 2 SAND(SW);dark yellowish brown(10YR 4/4);wet; <br /> y 15%clay,10%silt,65%fine to course sand. <br /> w <br /> � SP <br /> i 6 <br /> E <br /> 6 <br /> o e MW-4- 35 35.0 <br /> 0 34.5 <br /> o_ Bottom of <br /> ° Boring @ 35 ft <br /> 0 <br /> J <br /> J <br /> 40 <br /> PAGE 1 OF 1 <br />