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i <br /> -N NqRoi N MENTAL HEALTI-I 'DEPARTNIE T <br /> pU N <br /> S_AN JOAQUIN COUNT <br /> Uau Supervisors <br /> Donna K Heran, R.E.H.S. <br /> { Director 304 East Weber Avenue, Third Floor earl Boman, R.E.H.S, <br /> x { < AI Olsen, R.E.H.S, Stockton, California .95202-2708 Mike Huggins, R.E.H.S., R.D.I. <br /> Douglas W. Wilson, RE.11S. <br /> c+4Ci ,Fcq��r Program Manager Telephone: (209) 468-3420 Margaret Lagorio, R.E.H.S. <br /> Laurie A. Cotuda, RE.H.S. <br /> Fax: (209) 464-0138 Robert McClellan, R.E.H.S. <br /> Program Manager Mark Barcellos, R.E.H.S. <br /> i <br /> VINCE. ERAR'DI <br /> ERARDI vENTUREs AN 5 2002 <br /> PO BOIL 691000 <br /> STOCKTON CA. 95269 - 1000 <br /> RE: RRARDI VENM71 ES Site Code: 1229 <br /> 715 N. HUNTER ST. <br /> STOCKTON CA 95269 <br /> I <br /> San Joaquin County Environmental Health Department (ER D) has reviewed "Preliimnary Investigation and <br /> Evaluation Report," dated March 20, 2002, prepared by Advanced GeoEnviromnental, Inc. on your behalf. <br /> The lateral and vertical extent of soil and groundwater contamination remains undefined by this scope of <br /> work. Analysis of grab groundwater samples show total petrolern hydrocarbons as gasoline (TPH-g) as <br /> high as 5,400,000 micrograms per liter and benzene as high as 210,000 micrograms per liter. Groundwater <br /> cnntarnmaticn of this extent warrants an extensive well network and possible interim remedial action. <br /> l— A work plan to define the lateral and vertical extent of soil and groundwater contamination, installation of <br /> monitoring wells, and a complete well and conduit survey, should be submitted to FJ-ID by May 23,2002. _ <br /> Please contact Sam Savig, .F� at (209) 468-3453 if you have questions regarding this letter. <br /> Doom Heran, AEHS, Director <br /> Environmental Health Department <br /> L_ <br /> Sam Savig, EHS Margare� REHS <br /> Site Mitigation Unit IV Supervisor LOP/Unit IV <br /> cc: MartyHartzell-CVRWQCB <br /> v?4rian Millman Advanced GeoEnvironmental, Inc. <br /> i <br /> i <br /> i <br />