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Conestoga-Rovers&Associates BORINGMELL 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-11 <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House,NBH B DRILLING STARTED 02-Sea-09 <br /> LOCATION Tracy,California DRILLING COMPLETED 10-Sea-09 <br /> Continued from Previous Page <br /> U) 0 U F-rn <br /> CL O a w o O SOIL DESCRIPTION = WELL DIAGRAM <br /> 0 m0 Q W 0 �W <br /> d U U U <br /> 1.0 4 MW-11-20 SAND(SW);light olive brown(2.5Y 5/4);moist;loose; <br /> 5 5%silt,85%fine to coarse sand, 10%fine gravel;sand Bentonite Seal <br /> SW with angular and rounded gravel up to 1 inch in diameter. <br /> 21.5 <br /> Silty SAND(SM);yellowish brown(10YR 5/4);dry; <br /> e SM medium dense;45%silt,55%very fine sand;caliche; iron <br /> e staining. <br /> 23.0 Monterey Sand <br /> 0.0 „ Sandy SILT(ML);yellowish brown(10YR 5/4);moist; #2/12 <br /> 72 hard; 10%clay,50%silt,40%very fine sand;low <br /> plasticity;caliche. <br /> ML <br /> 0.3 4 Mw-11-25 25— @25'-soft. <br /> 4 <br /> _ 26.0 <br /> Silty SAND(SM);yellowish brown(10YR 5/4);wet; <br /> loose;45%silt,55%fine sand. <br /> 3 SM ' <br /> s <br /> a <br /> 28.0 <br /> 0.0 s SILT(ML);yellowish brown(10YR 5/4);wet;soft;20% 1 <br /> 5 clay,75%silt,5%fine sand;medium plasticity. - <br /> 0 <br /> 0.4 6 MW-11-30 30 ellowish brown 10YR 5/4;wet;soft;25%clay, 2"-diam.,0.020^ <br /> @30'-Y ( ) Slotted Schedule <br /> 7 70%silt,5%fine sand;medium plasticity;block structure. 40 PVC <br /> t] @31'-yellowish brown(10YR 5/4);moist;soft;30%clay, <br /> U_ ML 70%silt;medium plasticity. <br /> LU <br /> 6 @32'-dry;soft. <br /> � 5 <br /> M <br /> z 0.3 44 @33'-Sandy SILT(ML);yellowish brown(10YR 5/4); <br /> N 5 wet;soft; 10%clay,55%silt,35%fine sand;low plasticity. <br /> N <br /> N <br /> O <br /> f0 <br /> O <br /> 35 — — — -- --- 35.0 <br /> SAND with Silt(SP-SM);dark yellowish brown(10YR <br /> 4/4);wet; 10%silt,90%fine to medium sand. <br /> 0.4 MW-17-36 SP-SM <br /> oNative Soil <br /> g 37.0 <br /> 0 <br /> Bottom of <br /> a Boring @ 37 ft <br /> U <br /> W <br /> 2 <br /> 40 <br /> 0 <br /> z <br /> 0 <br /> 0 <br /> a <br /> O <br /> O <br /> J <br /> J <br /> J <br /> PAGE 2 OF 2 <br />