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Si,a Contrcaluatlam Ilorkglaa <br /> O.Z.S. -Stockton Plating raa. <br /> .: Laboratory analyses indicated that gasoline and gasoline <br /> constituents (,TEX) were, detected in the soil samples. Total <br /> petroleum hydrocarbons (Teff-C) were detected at 3300 mg/kg, and <br /> 2800 mg/kg. Various concentrations of benzene, toluene, ethyl <br /> les, Tetraeth <br /> benzene, and xylene welfe detected in both samples. y <br /> lead (TEL) and ethyl dibromide (EDB) were not detected in the <br /> soil samples. <br /> Condor <br /> recommended that a minimum of four toil borings be yY�: <br /> drilled around the TKI-90 site to irivestigate the vertical and <br /> ho;•izontal :extent of gasoline contamination. Samples would be <br /> collected at 5-foot intervals and used forg�Solo �e loggingand <br /> g <br /> laboratory analyses. The soil borings would be drilled to at <br /> Leas*_ 5 feet below the field detected contamination, or to the <br /> capillary fringe above the water table (Tan:: Pull Testing <br /> Results, Stockton Plating Inc., 104 E. Scott Street, prepared by <br /> Condor Earth Technologies Inc., January 2, 2990). <br /> The San Joaquin County Environmental_ uil Health Department . <br /> approved placement of the <br /> proposed soil borings around the TK1-90 <br /> site and at the same time requested that <br /> dditionai investigation <br /> be conducted at the TRI-86 site. Therefore, two additional soil <br /> borings are to be placed around former tank site TKI-sib for a <br /> total of six soil borings. — - - <br /> CONDOR <br />