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ENVIRONMENTAL HEALTH DEPARTMENT <br /> `a N SAN JOAQUIN COUNTY <br /> - Unit Supervisors <br /> Donna-K:Heron,R.E.H.S. <br /> 304 East Weber Avenue, Third Floor Carl Borgman,R.E.H.S. <br /> Director Mike Huggins,R.E.H.S.,R.D.I. <br /> '• AI Olsen,R.E.H.S. Stockton California 95202-2708 <br /> .c S. <br /> Pro ram Mana er ' Douglas t Wilson,R.E.H.S.N Laurie A Cotulla,R E.H.S. Telephone: (209) 468-3420 Margaret Lagor o,R.E.H.S. <br /> Fax: (209) 464-0138 Robert McClellon,R.E.H.S. <br /> Program Manager Mark Barcellos,R.E.H.S. <br /> D CHARLES SKOBRAK AUG 3 1 2004 <br /> 9947 EAST HIGHWAY 26 <br /> STOCKTON CA 95215 <br /> RE: Larry's Auto SITE CODE 1122 <br /> 308 North Grant Street RO: 194 <br /> Stockton,CA 95202 <br /> On June 12,2003,representatives of the San Joaquin County Environmental Health Department <br /> (EHD)met with Calvin Lee and Daniel Kalmbach of Advanced GeoEnvironmental,Inc. (AGE)at <br /> the EHD office to review the status of the 308 North Grant Street site in Stockton,CA and <br /> discuss advancing additional cone penetrometer testing(CPT)borings to assess the vertical and <br /> lateral extents of the northern and southern contaminant plumes identified at this site. AGE <br /> indicated agreement that a total of six additional CPT-paired soil borings would be advanced to a <br /> total depth of approximately 225 feet below surface grade (bsg), if possible,to delineate the <br /> vertical and lateral extent of contaminants at this site. <br /> Over a year has elapsed and EHD has not yet received the proposed work plan for the six <br /> additional CPT borings;nor has EHD received the well survey report due to this office on <br /> May 23,2003. You are directed to submit a work plan to EHD by October 8,2004, for the <br /> previously directed additional site investigation prepared in the context of the submitted site <br /> conceptual model. EHD also directs you to submit the well survey report with the work plan. <br /> This site is of major concern due to the high concentrations of 1, 2-dichloroethane,methyl <br /> tertiary-butyl ether,and other petroleum hydrocarbons found during the quarterly groundwater- <br /> monitoring events. EHD believes it is imperative at this time to move your site toward <br /> remediation; therefore,please prepare and submit an interim corrective action plan to EHD by <br /> October 28, 2004. <br /> Please continue the quarterly groundwater monitoring and submit the reports to EHD within <br /> thirty days of each monitoring event. If you have any questions,please contact Vicki McCartney <br /> at(209)468-3456 or by electronic mail at vmccartney@sjcehd.com. <br /> Donna Heran,REHS,Director <br /> ''Environmental Health Department <br /> Vicki McCartney,REHSNuel C.Henderson,Jr.,RG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> c: Daniel W.Kalmbach,AGE <br /> James L.L.Barton,CVRWQCB <br />