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f.s <br /> ! DU PONT ENVIRONMENTAL REMEDIATION SERVICES <br /> f, BORING NUMBER W--31_ CLIENT CONOCO INC. <br /> PROJECT STOCKTON DRILLING COMPANY PIEf?SON DRILLING <br /> LOCATION 4325 EAST WASHINGTON STREET DRILLING METHOD 8"O.D. HOLLOW STEM AUGER <br /> t.s DATE DRILLED 10-2-91 and 10-3-9I SAMPLING METHOD CA SPLIT SPOON SAMPLER <br /> I J.A. LENRMAN 2T Feet MSL <br /> LOGGED BY TOP OF CASING ELEV, <br /> LO U) <br /> ¢ n <br /> J ,u n a <br /> } n c� u DESCRIPTION AND REMARKS WELL DIAGRAM <br /> W rt -r O <br /> p <br /> rn Q J IL Q <br /> (n Ip ft <br /> 31-16 50/5" 11/11 25 SM y <br /> SILTY SANG- Brown/rust brown,very dense,moist, y- <br /> 31-17 50/3" 9/6 22 fine to very fine drained,same silly clay,slight <br /> b <br /> �. CA hydrocarbon odor. ul <br /> I SILTY SAND-Gray,very dense,moist,very fine u _ <br /> I p grained,same clay,some streaks of rust red fine e* w <br /> US grained sand,no hydrocarUon odor. a W — <br /> F - <br /> � y <br /> p ti <br /> Boring terminated at 82.5 feel. Groundwater <br /> encountered at 82 feel while drilling. " <br /> I, o <br /> } 90 6 . <br /> 1 <br /> t-S <br /> 100 <br /> i� <br /> 1 105 <br /> l <br /> 110 <br /> il5 <br /> 120 <br /> .109 NUMBER:4005h-SA Page 3 of 3 <br /> B-'17 <br />