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9 <br /> Conclusion <br /> Three underground fuel tanks(6,000 gallon premium unleaded gasoline,8,000 gallon <br /> leaded gasoline and 10,000 gallon regular unleaded gasoline)and one waste oil tank <br /> (1,0(X1 gallon) were removed from Exxon Service Station 7-3330 at 3128 West <br /> Benluinin Halt Drive in Stockton,California on October 9, 1991 The tank removal <br /> was witnessed by regulatory personnel.an Exxon representative and Exxon <br /> contra-mors and consultants. The tanks and tank water were transported under <br /> manifests to Enckson's Richmond Facility,a state-licensed tank disposal facility The <br /> tank ria.se-out water was transported by Erickson to the state-licensed Gibson Oil Pilot <br /> Petroleum`Redwood City Facility PMOA�� <br /> Soil samples were ar+alyzed at Pace Incorporated,a state-certified laboratory <br /> Laboratory analysis indicate detectable levels up to 360,000 ppb of total petroleum <br /> hydrocarbons as gasp ine(='1'PH-g)and benzene,toluene,ethylbenzene and xylenes <br /> (BTEX) at levels up to 1,200 ppb, 12,000 ppb,6,800 ppb. 39,000 ppb,respectively <br /> in the 8M-01-W sample collected to native soil beneath the 8,000 gallon gasoline <br /> tank. Soils beneath the 8,000 and 10,000 gallon tank contain detectable levels of <br /> i <br /> hydrocarbons. Nondetectable levels of TPH-g were found in the soils collected from <br /> beneath the product pipelines Approximately 500 cubic yards of soil was removed <br /> from the tankpit areas and stockpiled on site The soil stockpile is covered with <br /> rt visqueen and secured with a 6 foot high chain-link fence <br /> On December 14, 199 i,after the soil stockpile was properly characterized, <br /> approximately 104 cubic yards of soil were transported to a Class R lardfill and <br /> approximately 364 cubic yards of soil were transported to a Class III landfill <br />