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ENVIRONMENTAL HEALTH DEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> �q. �•�°G Unit Supervisors <br /> H <br /> K <br /> Donna K. eran,R.E.HS. Carl Borgman,R.E.H.S. <br /> �. ��- �• --� 304 East Weber Avenue, Third Floor <br /> UY { Director Mike Huggins,R.E.H.S.,R.D.I. <br /> _ Al Olsen,R.E.H.S. Stockton, California 95202-2708 <br /> Douglas W.Wilson,R.E.H.S. <br /> P Program ManagerTelephone: (209) 468-3420 Margaret Lagorio,R.E:FI.S. <br /> F6-uiil Laurie A.Cotulla,R.E.H.S. Robert McClellon,R.E.H.S, <br /> Program Manager Fax: (209) 464-013$ Mark.Barcellos,R.E.H.S. <br /> DAVID ATWATER .SUN 16 2004 <br /> FUEL STOPS LAND & DEVELOPMENT LLC <br /> P O BOX 1207 <br /> STOCKTON CA 95201 <br /> RE: Lathrop Gas &Food Mart SITE CODE 1507 <br /> 14800 Highway 99 RO: 0199 <br /> Manteca, CA 95336 <br /> San Joaquin County Environmental Health Department(EHD)has reviewed Revised Preliminary <br /> Site Assessment Work Plan dated November 18, 2003, and prepared by Advanced <br /> GeoEnvironmental, Inc. (AGE) on your behalf. EHD agrees with the recommendations presented <br /> in the work plan for the advancement of soil probe borings using direct push technology to assess <br /> for petroleum hydrocarbon-impacted soil and groundwater. However,because there are <br /> disparities between the locations of dispensers D3 and D4,based on site maps submitted by EHD <br /> and AGE, EHD proposes that either an additional boring be advanced at the northwest dispenser <br /> (D3 on AGE's site map), or the boring proposed to be advanced between dispensers D1 and D2 <br /> be relocated to the northwest dispenser(D3 on AGE's site map). . <br /> EHD also suggests that selected soil and groundwater samples be analyzed for all of the <br /> following analyses: total petroleum hydrocarbons as gasoline (TPH-g) and diesel(TPH-d)by US <br /> Environmental Protection Agency(EPA) SW-846 method 801513; benzene, toluene, ethyl <br /> benzene and total xylenes (BTEX); di-isopropyl ether(DIPE), ethyl tertiary-butyl ether(ETBE), <br /> methyl tertiary-butyl ether (MTBE),tertiary-amyl methyl ether(TAME),tertiary butyl alcohol <br /> (TBA), methanol, ethanol, 1,2-dichloroethane(1,2-DCA), and 1,2-dibromoethane(EDB),by <br /> EPA SW-846 method 8260B. <br /> if you have any questions regarding this letter please contact Vicki McCartney,REHS, at(209) <br /> 468-3456 or by electronic mail at vmccartney@sjcehd.com. <br /> Donna Heran,REHS,Director <br /> Environmental Health Department <br /> Vicki McCartney,REHS Nuel C. Henderson,Jr.,RG <br /> Unit IV-Site Mitigation Unit IV- Site Mitigation <br /> cc: Donna Sexton -AGE <br /> James L.L. Barton -CVRWQCB <br />