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^• o� . .o ruacic 11iK11.HI1MY 209 833 1288 P. 02 <br /> DIEn IRRIGATION <br /> Engineers and Contractors <br /> Serving Agriculture and Industry <br /> cA tic.raxtal WA uc.DIUZVMMt <br /> January 6, 1999 <br /> Mr. Steve Sasson, REHS <br /> Public Health Services <br /> San Joaquin County <br /> 304 Webber Avenue <br /> P.O. Box 388 <br /> Stockton,CA 95201-0388 <br /> Subject: 7500 West It*Street,Tracy,California <br /> Dear Mr. Sasson: <br /> Following the removal of underground storage tanks and piping from the subject site, the <br /> soil from beneath the pump island which has elevated levels of gasoline and diesel was <br /> excavated and stockpiled on site. The results from the sampling of the stockpile of this <br /> soil are not yet available. The excavation of hydrocarbon affected soil on the site is now <br /> completed. The stockpile of hydrocarbon affected soil will be covered with visqueen in <br /> accordance with County requirement. The present plan is to place a visqueen marker in <br /> the tank pit and pump island pit excavations and backfill these excavations with clean <br /> soil. A work plan will be prepared for characterization and remediation of the site. One <br /> element of this plan(to be prepared)will be to treat the stockpile of hydrocarbon affected <br /> soil on site. Following this treatment sampling will be performed in accordance with San <br /> Joaquin County requirements to verify that the clean up standards(to be established) has <br /> been achieved. <br /> If you have any questions please contact me. <br /> Sincerely yours, <br /> H. B. Dietz <br /> Distribution: Mr. Carl Navarra <br /> 8617 Etcheverry Drive • Tracy, CA 95376 • (209) 832-2910 • Fax (209) 833-1286 <br />