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�H�i EPARTMENT <br /> a <br /> j�=, ENVIRONMENTAL HEAL <br /> Pa�,N SAN JOAQUIN COUNTY Unit Supervisors <br /> �o � oo Donna K.Heran, R.E.H.S. <br /> 0 Director 304 East Weber Avenue,Third Floor Carl Borgman,R.E.H.S, <br /> Q Mike Huggins,R.E.H.S.,R.D.I. <br /> N T / <br /> 4 Laurie A. Cotulla, R.E.H.S. Stockton,,California 95202-2708 , Douglas W.Wilson,R.E.H.S. <br /> Program Manager Telephone: (209)468-3420 Margaret Lagorio,R.E.H.S. <br /> o ;`P <br /> 'e,FORN Fax: (209)464-0138 Robert McClellon,R.E.H.S. <br /> Website:www.sjgov.Org/ehd/ Jeff Carruesco,R.E.H.S. <br /> 'i nc <br /> DENIS L BROWN NAR 2 9 2006 <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 irna,Lori Duncan, and Vicki McCartney representing E14D <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 /> l 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 V <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 /> 1 <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 /> j Cross sections will be submitted in the work plan for the additional monitoring wells. <br /> !' 440 Charter War 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 /> 'I 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 /> i 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 /> i <br />