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r <br /> Conestoga-Rovers sociates BORING/WELL LOG <br /> 19449 Riverside Drivc,Suite 230 <br /> ySonoma,CA 95476 <br /> Telephone: 707-935-4850 <br /> Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BORING/WELL NAME MW-6 _ <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House NBH C&D DRILLING STARTED 21-Jan-09 <br /> LOCATION Tracy,CA DRILLING COMPLETED 04-Feb-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 25-Sep-09(43.0 gallons) <br /> DRILLER Gregg Drilling,C-57#485165 GROUND SURFACE ELEVATION 96.30 ft above mst <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 98.63 ft above msl <br /> BORING DIAMETER 10" SCREENED INTERVAL 20 to 34.9 fbq <br /> LOGGED BY S.Phillips DEPTH TO WATER(First Encountered) 27.5 ft(04-Feb-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 31.22 ft(30-Sep-09) 1 <br /> REMARKS Air knifed to 5 fbq. Above ground construction consisting of a 2 ft Stovepipe <br /> lQ F- U F rn <br /> E I— W Z f_ Ci Ci Z <br /> O Z a W ¢a O SOIL DESCRIPTION = WELL DIAGRAM <br /> J <br /> o °000 < W = 0 0w <br /> U0 <br /> SILT ML ;brown(7.5YR 4/2);dry;20%clay,70%silt, <br /> 10%fine to coarse sand;low plasticity. <br /> @ 1'-30%clay,65%silt,5%fine to coarse sand;low to <br /> medium plasticity. <br /> 1.1 a Mvv_r1 s 5 SILT with Sand(ML);dark yellowish brown(10YR 4/4); <br /> ° dry;30%Gay,55%silt,15%sand;medium plasticity. <br /> Portland Type VII <br /> e <br /> 0.4 1° MW6-10 10 @ 10'-20%clay,65%silt,15%sand. <br /> ML <br /> o � <br /> `0 3 <br /> 2.1 a MW-6-15 15 <br /> 0 <br /> c? <br /> r Bentonite Seal <br /> J <br /> 7 <br /> Q <br /> LL <br /> W � <br /> ° Monterey Sand <br /> 1.9 14 MVV-r,202D A012 <br /> N <br /> N <br /> O <br /> 0 <br /> W 6 <br /> g 1.9 a MW-f,25 25 Sandy SILT(MQ:dark yellowish brown(10YR 4/6);dry;__ 25.0 <br /> N MLS 5%clay,60%sift,35%sand;medium plasticity. <br /> ________ 27.5 4"-diam.,0.020" <br /> Silty SAND(SMl:dark yellowish brown(10YR 4/6);wet; Slotted Schedule <br /> 5%clay,25%silt,70%fine sand. 40 PVC <br /> 0.5 ' MVV-&30 30'-yellowish brown(10YR 5/9). <br /> SM 1 <br /> W <br /> m <br /> e <br /> 3 <br /> a <br /> 0 0.3 ° Mw-6-3.5 —35- 35.5 <br /> q <br /> O <br /> a Bottom of <br /> o Boring @ 35.5 <br /> J <br /> ft <br /> J <br /> 40 <br /> PAGE 1 OF 1 <br />