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ENVIRO?�VMNTAL HEALTH'6EPARTMENT <br /> SAN JOAQUIN COUNTY <br /> X- Donna K. Heran, R.E.H.S. Unit Supervisors <br /> ` < Director 304 East Weber Avenue,Third Floor Carl Borgman,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 /> OqC/F_ORa�P Telephone: (209)468-3420 Margaret Lagorio,R.E.H.S. <br /> Fax: (209) 464-0138 Robert McClellon, R.E.H:S. <br /> Website:www.sjgov.org/ehd/ Jeff Carruesco,R.E.H.S. <br /> DENIS L BROWN MAR 2 9 20M <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 Infurna,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 <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 /> 1313 Charter Way,Stockton <br /> Shell is in the process of obtaining a permit from the City of Stockton to install a temporary <br /> groundwater extraction system. The plan is to extract groundwater from MWl 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 /> 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 />