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I <br /> 1 <br /> 1 <br /> Pacific Gas & Electric Company Page 2 <br /> Stockton Service Center <br /> F. Stockton, California <br /> hydrocarbons where a 10 , 000 gallon underground storage tank , <br /> sump , and piping were located . <br /> j <br /> On January 16 , 1987 , closure and removal of the 10 , 000 <br /> gallon tank , sump , and piping were performed by S . O . S . <br /> International , Inc . After removal operations were complete , soil <br /> samples were obtained from the excavations in the presence of <br /> t � <br /> personnel from the San Joaquin Local Health District . Locations <br /> of the soil samples are presented on Drawing No . 2 . Due to <br /> uncertain weather conditions and safety concerns , the excavations <br /> Fwere backfilled and compacted . <br /> On January 26 , 1987 , results of the soil samples obtained <br /> t duringthe loperations were submitted to Ms . Lauri <br /> closure o P e <br /> Cotulla of the San Joaquin Local Health District . Upon review of <br /> the results , Ms . Cotulla indicated that the detectable <br /> Fconcentrations of petroleum hydrocarbons present in the soil <br /> samples were high enough to warrant further investigations . <br /> F" i <br /> Based on a telephone conversation between Ms . Cotulla and Mr . <br /> k Karl Kerner of our office , there are three areas that warrant <br /> i <br /> further investigation . These three areas of concern are : 1 ) <br /> Fsoil beneath the underground tank towards the fill end , 2 ) soil <br /> beneath the sump , and 3 ) soil beneath the product line from the <br /> Ff <br /> sump to the pump . These areas represent soil sample locations � <br /> SI , S2 , and S4 respectively , as shown on Drawing No . 2 . <br /> Fresno Modesto Visalia Bakersfield <br /> Fl; <br />