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m <br /> WX <br /> `i Pra <br /> i s Gita Cnntaaiaatfon Workplan <br /> i.s <br /> O.E.B. -sv=kton Plating Inc. <br /> page <br /> ' i (Figure 2). The tank had contained leaded and unleaded gasoline <br /> �} and had not been used since october, 1990. <br /> P <br /> James Wack of Condor Earth Technologies, Inc. (Condor), was <br /> ^_ on site to collect soil samples following the removal of the <br /> tank. Eric T.revena of the San Joaquin County Environmental <br /> r,.. <br /> � Health Department was on site to observe the tank removal and <br /> sampling procedures. The tank was in poor condition and <br /> �z <br /> extremely corroded on the east end. A hole, approximately 1 <br /> u3 centimeter in diameter, was located at the bottom east end of the <br /> tank. The fill material surrounding the Lank consisted of light <br /> s*° brown, medium sand and gravel. The native soil consisted of <br /> brown, clayey silt and was overlain by a 2-foot layer of <br /> asphaltic fill/debris. A strong petroleum c3or was noticed in <br /> i <br /> the brown, clayey silt beneath the tank. No groundwater was <br /> encountered in the excavation. <br /> Two soil samples were collected front beneath the tank, one <br /> �j <br /> from each end. The two samples were analyzed for benzene, <br /> toluene, ethyl benzene, and xylene (BTEX) by EPA Method 8020, for <br /> V <br /> total petroleum hydrocarbons-gasoline (TPH-G) by Method <br /> x <br /> 5030/Mod.8015, for ethylene dibromide (SDE) by Method 504, and <br /> for tetraethyl lead (TEL) by Method DHS-LUFT. <br /> �1 <br /> CONDOR <br />