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tCESPUBLIC hEALTH SERV <br /> SAN JOAQUIN COUNTY M j <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M.D., M.P.H., Acting Health Officer <br /> 445 N. San Joaquin Street • P.O. Box 388 • Stockton, CA 95201-0388 <br /> (209) 468-3420 <br /> ELIZABETH THAYER <br /> CENTRAL VALLEY <br /> REGIONAL WATER QUALITY CONTROL BOARD <br /> 3443 ROUTIER ROAD, SUITE A 11994 <br /> SACRAMENTO CA 95827-3098 <br /> RE: Marval Market SITE CODE: 1354 <br /> 429 West Lockeford <br /> Lodi CA 95240 <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) has evaluated the <br /> site for closure/site certification. PHS/EHD requested in correspondence dated September 27, 1993 the <br /> Regional Board's review and concurrence of PHS/EHD's determination that all appropriate response actions <br /> had been completed and that all acceptable remedial practices were implemented and that no further <br /> investigation,remedial action,or monitoring was required at this site,with regard to the underground storage <br /> tanks formerly located at this site,based on information which was currently and actually known. <br /> Avapor extraction system operated from April 1992 to January 1993 and removed approximately 1,070 pounds <br /> of gasoline. The August 1993 confirmation soil sampling did not detect contamination indicating that the site <br /> has been adequately remediated. Groundwater contamination was evidenced in the monitoring well located <br /> closest to the former tank pit and was remediated along with the soil contamination. No TPH-gas,benzene, <br /> toluene, or ethylbenzene were detected in groundwater samples since August 1992. Xylene was detected at <br /> levels slightly above the detection limits in November 1992, but none since then has been detected. <br /> Please be informed that PHS/EHD will certify the site for closure and direct the responsible party to destroy <br /> the three monitoring wells and one vapor extraction well, unless the Regional Board responds within 30 days <br /> of the date of this letter either rejecting the recommended closure or requesting additional time to review <br /> PHS/EHD's recommendation. Enclosed is a copy of the case closure summary and chronology for your <br /> information. <br /> If you have any questions or comments, please contact Mary Meays, at (209) 468-0337. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> Mary Meays, Senior REHS J-*iDiane V-4iinson, RENS <br /> Site Mitigation Unit Supervisor <br /> MM\429LOC <br /> cc: Mardee Kidd, Marvel Market (w/enclosures) <br /> W., Bruce Scarbourgh, Seacor (w/o enclosures) <br /> A Di%ision of San Joaquin County Health Care Services <br />