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Casias Memo <br /> Page 2 <br /> Please note that PHSIEHD disagrees with the supposition that the analytical results from <br /> samples collected directly beneath the tams operated by A.G. 8panos are not <br /> representative of the tanks' conditions. An evaluation of the analytical results obtained <br /> following the removal of all of the tanks formerly located in the tank farm indicated tare <br /> discrete contamination. For example, the high concentrations observed in sample fC dere <br /> not observed in 68, nor in 5C, indicating that there was not significant horizontal shallow <br /> migration. <br /> Additional information which may be useful to demonstrate that the tanks operated by <br /> A.G. Spanos leaked during or prier to their its operation, includes information obtained at <br /> the time of removal. PHSIEHD has included observationsby the underground storage tank <br /> inspectors of the tanks at their removal and conditions readily apparent. It was rioted that <br /> some tanks were in poor condition with corrasion evident. Also, tank 1845-Q2 had a small <br /> amount of liquid beneath the tank, suggesting that the tank may have been in a "leaky" <br /> condition. Finally, the inspector documented fuel odors beneath tank 18450-02. The <br /> analytical results obtained from samples collected beneath tanks 1545-01 - 1845-04 are <br /> supported by the inspectors' observation. <br /> I hope that the additional information hes clarified, PHS/E IIS°s rational for identifying A C. <br /> spanos as a responsible party. If you have any more questions, please contact me at <br /> (209) 468-X3337. <br /> Enclosures <br /> Site map 1 page) <br /> Table 2 Analytical Results 2 pages} <br /> Underground Tank Closure Inspection Reports for Tanks 1845-01 1 - 1845-04(6 pages) , <br /> Sampling Inspection Reports for Tanks 1845-01 - 1845-04(2 paged <br />