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'b <br /> ENVIROfVMENTAL -HEALTIEPARTMENT <br /> M: SAN JOAQUIN COUNTY <br /> Unit Supervisors <br /> z. Donna K. Heran, R.E.H.S. <br /> Director 304 East Weber Avenue,Third Floor Carl Borg man,R.E.H.S. <br /> Laurie A. Cotulla, R.E.H.S. Stockton,California 95202-2708 Mike Huggins, R.E.H.S., R.D.I. <br /> Program Manager Douglas W.,Wilson, R.E.H.S. <br /> cQ.. . �P• 8 S Telephone: (209)468-3420 Margaret Lagorio,R.E.H.S. <br /> 41FOR <br /> Fax: (209)464-0135 Robert McClellon, R.E.H.S. <br /> Website:www.sjgov.org/ehd/ Jett Carruesco, R.E.H.S, , <br /> DENIS L BROWN UM 2 9 2016 <br /> SHELL OIL PRODUCTS <br /> 20945 S WILMINGTON <br /> CARSON CA 90810-1039 <br /> RE: SHELL Sites in San Joaquin County <br /> A meeting was held on March 22,2006, at the office of San Joaquin County Environmental Health <br /> Department(EHD). Attending,the meeting were you representing Shell Oil,Joe Neely and Aubrey <br /> Cool representing Cambria Environmental Technology,Inc.,Margaret Lagorio,Nuel C. Henderson, <br /> Jeff Wong,Harlin Knoll,Michael Inf ma,Lori Duncan,and Vicki McCartney representing EHD <br /> and James Barton representing the Central Valley Regional Water Quality Control Board <br /> (CVRWQCB). There was a general discussion about evaluation for vapor intrusion into existing or <br /> future buildings at sites as part of the site investigation. It was also discussed that Shell would be <br /> changing laboratories for sample analysis and reporting. The following is a synopsis of the status t <br /> and/or site specific discussions at the meeting. <br /> 3011 Benjamin Holt,Stockton <br /> EHD has received and will review the"Request for No Further Action"report. If the report is <br /> complete,quarterly monitoring for Second Quarter 2006 will not have to be performed. <br /> t , <br />' 1313 Charter Way, Stockton <br /> Shell is in the process of obtaining a permit from the City of Stockton to installa temporary <br /> groundwater extraction system. The plan is to extract groundwater from MW1 which has the <br /> highest concentrations of 1,2 DCA and possibly also from MW6. The extent of the 1,2 DCA still. <br /> has to be defined south of the site. <br /> 620 Charter Way,Stockton <br /> t Preliminary data from the advancement of CPT borings was presented and discussed. The report of <br /> the CPT work will be submitted to EHD.with recommendations for additional monitoring wells. <br /> Cross sections will be submitted in the work plan for the additional monitoring wells. <br /> 440 Charter Way,Stockton <br /> The damaged deep screened well has been repaired. Once data is gathered from this well,the site <br /> will be reviewed for further assessment/remediation. <br /> 1267 Country Club,Stockton <br /> A report on the monitoring wells installed in December 2005 that includes a Site Conceptual Model <br /> (SCM)and conclusions on site delineation and remedial action is to be submitted to EHD. <br /> ! 2575 Country Club.Stockton <br /> The ground water extraction (GWE) system has not operated since October 2005. Groundwater <br /> } extraction by a vacuum truck will be performed twice a month until the GWE system is restarted. <br /> i4 <br />