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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 BORING/WELL NAME S-6 <br /> JOB/SITE NAME Shell-branded Service Station DRILLING STARTED 16-Dec-03 <br /> LOCATION 2494 East Fremont Street,Stockton,California DRILLING COMPLETED 16-Dec-03 <br /> Continued from Previous Page <br /> az a- w a U a 6 WELL DIAGRAM <br /> SOIL DESCRIPTION = <br /> OJD d W� In Q-, ZH <br /> o mUU Q w 0 Uw <br /> U)14 <br /> U� <br /> 20 <br /> @ 35'-Clayey SILT(ML);dark yellowish brown(10 YR <br /> 18 4/4);hard;moist;20%clay,70%silt, 10%very fine sand; <br /> low plasticity. <br /> 15 <br /> 40— @ 40'-pale brown(10YR 4/4);dry;20%clay,75%silt, <br /> 19 5%fine sand;low plasticity. <br /> 20 45— @ 45'-yellowish brown(10YR 5/4); moist. <br /> 2s <br /> 17 25 50 @ 50'-Sandy SILT(ML);yellowish brown(10YR 5/6); <br /> 31 hard; moist;5%clay,70%silt;25%very fine sand; no <br /> plasticity. <br /> ML <br /> 0 <br /> Y <br /> s 55 @ 55'-yellowish brown(10YR 5/4);very stiff; 10%clay, <br /> 3 65%silt,25%very fine sand. <br /> Bentonite Seal <br /> w <br /> 0 <br /> a Monterey Sand <br /> #2/12 <br /> 0 15 60 @ 60'-Silty SAND(ML);dark yellowish brown(10YR <br /> z 17 4/4);dense;wet; 15%silt,85%fine to very fine sand;with <br /> 15 greenish gray(10Y 6/1)mottling. <br /> 1s <br /> 0 17 @ 62'-no mottling present. <br /> w 19 @ 63'-Sandy SILT(ML);light olive brown(2.5Y 5/3); <br /> LL 9 dense;wet;20%silt,80%fine sand;no plasticity. <br /> w ° 64'- Silty SAND(ML);dark yellowish brown 10YR <br /> oma, 1s 65 @ Y ( 4"-diam.,0.020" <br /> N 2 4/4);dense;wet;20%silt,80%fine sand. Slotted Schedule <br /> o 8 @ 65'-Sandy Clayey SILT(ML);light olive brown 40 PVC <br /> 15 (2.5Y 5/3);very stiff;moist;20%clay,60%silt,20%fine <br /> o 7 sand;low plasticity. <br /> U) 7 O @ 66'-yellowish brown(10YR 5/4);205 clay,65%silt, <br /> 15%fine sand;low plasticity. <br /> 9 @ 69'-Silty SAND(ML);light olive brown(2.5Y 5/3); <br /> 8 70 medium dense;wet; 10%clay,35%silt,55%very fine 70.5 <br /> o sand. <br /> o @ 70'-Clayey SILT(ML); yellowish brown(10YR 5/4); <br /> very stiff;moist;25%clay,75%silt,5%fine sand;medium Bottom of <br /> o sand. Boring @ 70.5 <br /> a ft <br /> O <br /> O <br /> J <br /> J <br /> w 75 <br /> PAGE 2OF2 <br />