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F0*d -ibioi <br /> E h <br /> June 10,2003 <br /> Ms. Kasey L.Foley <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue,3rd floor <br /> Stockton,CA 95202 <br /> RE: Fueling Facility Operation and Future Remediation <br /> 7-Eleven Store No.32262 <br /> 2360 West Grantline <br /> Tracy,California <br /> Dear Ms. Foley: <br /> 7-Eleven Incorporated (7-Eleven) has prepared this letter to supply additional information required by San <br /> Joaquin County, Environmental Health Department (SJCEHD) for the final approval of the underground storage <br /> tank installation permit package for the subject site. <br /> Based on soil and groundwater analytical results from samples collected during the fuel line upgrade work in May <br /> 2003,the soil and groundwater at the site have been impacted with gasoline range petroleum hydrocarbons and <br /> oxygenates. Based on the groundwater data, some form of remediation will likely be required to remove or <br /> accelerate the insltu destruction of gasoline range petroleum hydrocarbons dissolved in groundwater. Remedial <br /> technologies currently exist that will allow remediation of the soil and groundwater at the site to be conducted in <br /> conjunction with operation of the retail gasoline sales facilities at the site. Traditional remedial options include soil <br /> vapor extraction, groundwater extraction, dual phase extraction, air sparging, oxygen sparging, and ozone <br /> sparging. If needed,the specific remedial approach used at the site will be determined following assessment of <br /> the lateral and vertical limits of the gasoline range petroleum hydrocarbons. dissolved in groundwater and <br /> adsorbed to soli at the site. <br /> If you need additional information for the UST installation permit package or have other questions, please feel free <br /> to call me at(253)7W7170. <br /> Sincerely: <br /> Randy Martin <br /> 7-Eleven Environmental Manager <br /> cc: Mr.John Wainwright,SECOR <br /> 7-Eleven Scores <br /> Cascade East At CencerPoinc <br /> 20819 72"1 Avenue South/Suite 800/Kent,WA 98032 <br /> Phonc(253)796-7111 / 1-800-772-3711 1 Pax (253) 796.7120 <br /> Z0/Z0'd 0?-TL 96L 2SZ 90Idd0 dN00 TT—L TS:2T 2002—TT—Nnf <br />