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ENVIRONMENTAL HEALTHDEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> �.=aCf•..oG _ Unit Supervisors <br /> _Donna K.Heran,R.E.H.S. Carl Borgman,R.E.H.S. <br /> Director 304 East Weber Avenue, Third Floor Mike Huggins,R.E.H.S.,R.D.I. <br /> Al Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Wilson,R.E.H.S. <br /> • �.. P • Program Manager Telephone: (209) 468-3420 Margaret Lagorio,R.E.H.S. <br /> '9(j F O'Rvx� Robert McClellon,R.E.H.S. <br /> Laurie A.Cotulla,R.E.H.S. Fax: (209) 464-0138 <br /> Program Manager Mark Barcellos,R.E.H.S. <br /> THRIFTY OIL COMPANY SEP 0 1 2004 <br /> MICHAEL BOWERY <br /> 13116 IMPERIAL HIGHWAY <br /> SANTA FE SPRINGS CA 90670 <br /> RE: TOSCO #2705449 (formerly Thrifty #172) SITE CODE: 1227 <br /> RO#:557 <br /> 7647 Pacific Ave. CUF#: 002156 <br /> Stockton, CA. 95207 <br /> San Joaquin County Environmental on Jule 119h 004 and has Department the Eol ow ng comments. <br /> Included reviewed <br /> Quarter <br /> 2004, Status Report submittedY <br /> Included in this quarterly monitoring report and soil vapor/ground water extraction status report <br /> was a request to discontinue sampling the ground water monitoring wells for Methanol and <br /> Ethanol. SJCEHD understands your concern since these analytes have not been detected in <br /> the ground water for greater than three years, but offers the following for your consideration. <br /> SJCEHD is unaware of which oxygenate additive is in Thrifty Oil Company (TOC) gasoline now <br /> that MtBE has been removed from use. Once you inform SJCEHD ofw Bich alcohol i deibeing <br /> gon <br /> added to TOC gasoline, the reduction of certain analytes may be appro <br /> is made, please continue to analyze the samples from the wells as previously directed. <br /> SJCEHD has discovered that you are not analyzing the samples from the monitoring wells for <br /> lead scavengers. TOC/TOSCO is to analyze all of the samples from all the monitoring, vapor <br /> and extraction wells for 1,2-DCA, EDB, and soluble lead starting 3rd Quarter, 2004. SJCEHD <br /> will evaluate the data after a full annual period of sampling and determine which wells may have <br /> this sample analysis requirement modified or removed. <br /> You may contact Michael Infurna at (209) 468-3454 during normal working hours should you <br /> have any questions or wish to make an appointment. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> 16ae,4� <br /> C4� <br /> Michael J. Infurna Jr., Senior REHk— S Margaret agorio, REHS <br /> LOP / Site Mitigation Unit IV Supervisor <br /> MI/ <br /> c: CVRWQCB – James L. Barton, Sacramento. <br /> c: SWRCB/CUF – Mark Owens, Sacramento. <br />