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ENVIR6 ME a� <br /> NTAL HEALTH DEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> Unit Supervisors <br /> Donna Keran,R.E.H.S. <br /> Director 304 East Weber Avenue, Third Floor Carl Borgman,R.E.H.S. <br /> AI Olsen,R.E.H.S. Stockton, California 95202-2708 Mike Huggins,R.E.H.S.,R.D.I. <br /> c Pro ram Manager Douglas W.Wilson,R.E.H.S. <br /> araret <br /> 'Foo <br /> Telephone:g g Telephone: (209) 468-3420 MLa orio,R.E.H.S. <br /> Laurie A.Cotulla,R.E.H.S. g g <br /> Program Manager Fax: (209) 464-0138 Robert McClellon,R.E.H.S. <br /> Mark Barcellos,R.E.H.S. <br /> AURANGZEB (ZEB) KHAN MAR 11 2005 <br /> 5925 TERMINAL <br /> APT. l <br /> RIVERBANK CA 95367 <br /> DHILLON, CHARAN SINGH ETAL <br /> 2057 S EL DORADO <br /> STOCKTON CA 95206 <br /> RE: QUICK-N-SAVE#2 SITE CODE: 698 <br /> 2057 SOUTH ELDORADO AVENUE <br /> STOCKTON CA 95206 <br /> San Joaquin County Environmental Health Department(EHD) has reviewed the Quarters Report— <br /> Third,Qia der 2004 (report) dated January 3,2005 prepared by Advanced GeoEnvironmental, Inc. <br /> (AGE). Elevated concentrations of total petroleum hydrocarbons as gasoline (TPH-g),methyl tert <br /> butyl ether (NrME),and aromatic hydrocarbons have been detected during the last three quarters of <br /> sampling since the installation of monitoring well 1`1\�C'-1,h1 XL2,and MRX/-3 in Alarch 2004. The <br /> highest concentration of contaminants were 110,000 micrograms per liter(ug/1) of ATIBE in N1\V-1 <br /> groundwater samples collected in June 2004,260,000 ug/I of TPH-g in August 2004,and 5,600 ug/l <br /> of Benzene in August 2004. Another oxygenate, tertiary-amyl methyl ether(TANIE) has also been <br /> detected in all three wells. The concentration of TAbIE has steadily increased in MAX'-1 during the <br /> last 3 quarters. Analytical results of NRV-1 groundwater sample in August 2004 were 570 ug/l. <br /> According to Guidelines for Investigation and Cleanup ofM7BE and Other Ether-Based Oxygenates published <br /> by State Water Resources Control Board, the above-referenced site is a candidate for interim <br /> remedial action for source area remediation within one year of discovery of the MTBE release. <br /> EHD recommends timely implementation of interim remedial action using technologies such as soil <br /> vapor extraction and air sparging on sites with oxygenates and aromatic hydrocarbons contamination <br /> to reduce the rate of contaminants entering into a dissolved phase and migrating in groundwater,and <br /> reduce the concentration of the dissolved contaminants in groundwater. Submit a work plan for <br /> interim remedial action to EHD by April 30,2005. <br /> Please feel free to contact Jeffrey Wong at(209)468-0335 if you have any questions. <br /> Donna Heran,REHS,Director <br /> Environmental Health Department <br /> C. Ak � <br /> Jeffrey Wong, Senior REHS Nuel C. Henderson,Jr.,PG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> Cc: CRXVQCB,Central Valley Region—James L.L. Barton,PG <br /> Cc: Advanced GeoEnvironmental,Inc.—Donna Sexton / Eyrene Fisher <br />