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Conestoga-Rovers&Associates 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 BORINGIWELL NAME MW-10 - <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House, NBH B DRILLING STARTED 03-Sep-09 <br /> LOCATION Tracy,California DRILLING COMPLETED 11-Sep-09 <br /> Continued from Previous Page <br /> U UiU ~ � <br /> D a W LU 0_ Q O SOIL DESCRIPTION = WELL DIAGRAM <br /> a m0 Q w p � ' @W <br /> U U <br /> 0.5 7 MW-10-20 SILT(ML);olive brown(2.5Y 4/4);dry;firm;5%clay, <br /> e 90%silt,5%fine sand;low plasticity;block structure; <br /> a smooth. Monterey Sand <br /> 4 <br /> s #2112 <br /> @22'-soft. <br /> 0.4 <br /> ° ML <br /> 5 @23'-Sandy SILT(ML);olive brown(2.5Y 4/4);dry; <br /> 5 soft;5%clay,65%silt,30%fine sbnd;low plasticity; <br /> caliche. <br /> @24'-SILT(ML);olive brown(2.5Y 4/4);dry;20%clay, <br /> 0 75%silt,5%fine sand;medium plasticity. <br /> 74 MW-10-25 25— @25'-hard. <br /> 20 <br /> O 26.0 <br /> Silty SAND(SM);brown(10YR 4/3);moist;hard;30% <br /> 7.4 SM silt,70%fine sand. <br /> _ 27.0 <br /> a SAND(SP);brown(10YR 4/3);wet;firm;5%silt,95% <br /> 10 fine sand. <br /> SP <br /> 0.7 7 _ <br /> 7 V28.5 <br /> SILT(ML);brown(10YR 4/3);dry;firm;30%clay,65% <br /> silt,5%fine sand;medium to high plasticity;caliche. <br /> oD <br /> C. 2"-diam.,0.020" <br /> Slotted Schedule <br /> 3 MW-10-30 30 @30'-brown(10YR 4/3);moist;soft;30%clay,65%silt, 40 PVC <br /> 2.0 4 5%fine sand;medium to high plasticity. <br /> J <br /> Q <br /> LL ML <br /> s @32'-soft. <br /> a 5 <br /> m <br /> z <br /> @33'-SILT with Sand(ML);brown(10YR 4/3);moist; <br /> 20%clay,65%silt, 15%fine sand;medium plasticity. <br /> N <br /> N <br /> N <br /> O <br /> O <br /> ' _ _ ________________________ 35.0 <br /> W 35 Silty SAND(SM);brown(10YR 4/3);wet;40%silt,60% <br /> co fine sand. <br /> ' 2.8 MW-10-36 SM <br /> N <br /> O <br /> 37.0 <br /> 0 <br /> c° <br /> Bottom of <br /> Boring @ 37 ft <br /> U <br /> W <br /> 2 <br /> N <br /> 7 <br /> 40 <br /> 0 <br /> z <br /> 0 <br /> 0 <br /> a <br /> c0 <br /> 0 <br /> J <br /> J <br /> J <br /> PAGE 2 OF 2 <br />