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- r/ <br /> July 18, 1995 <br /> Meeting with City of Stockton <br /> 1740 Houston <br /> Site Code 1146 <br /> Program Element 35.27 <br /> Current Status: <br /> Tank removal soil results confirm that the east end of the tank pit is clean at 11 feet. The grab <br /> sample from the middle of the excavation at 11 feet during the overexcavation which occurred <br /> on April 3, 1995 had a strong petroleum odor. A sidewall sample of unknown depth indicates <br /> that contamination is extending laterally beneath the building. <br /> Proposed Actions: <br /> PHS/EHD requires an addendum to the existing workplan to describe the procedure to: <br /> 1) Backfill the east end of the tank pit in the presence of the PHS/EHD inspector. <br /> 2) Dewater and overexcavate the west end of the pit and the dispenser area. <br /> 3) Sample the west end sidewall to determine if an investigation beneath the building is <br /> warranted. <br /> 4) Submit a workplan for the investigation beneath the building if necessary. <br /> The addendum to the workplan is to be submitted to PHS/EHD within three to four weeks from <br /> today. The workplan is to be implemented within two weeks of PHS/EHD approval. <br />