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ENVIRON IENTAL HEALTHh- EPARTMENT <br /> SAN JOAQUIN COUNTY <br /> Donna K. Heran, R.E.H.S. Unit Supervisors <br /> Q � 304 East Weber Avenue Third Floor <br /> Director Carl Borgman,R.E.H.S. <br /> Laurie A. Cotulla R.E.H.S. <br /> Stockton,California 95202-2708 Mike Huggins, R.E.H.S., R.D.I. <br /> . _s ;-;•a • Program Manager Telephone: {209)468-3420 Douglas W. Wilson, R.E.H.S. <br /> Qtlfio`R�� 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 $ 9 200 <br /> SHELL OIL PRODUCTS <br /> 20945 S WILMINGTON <br /> CARSON CA 90$20-1039 <br /> RE: SHELL Sites in San Joaquin County <br /> r <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 /> I and/or site specific discussions at the meeting. <br /> i <br /> i <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 Warr,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 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 /> 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 workplan for the additional monitoring wells. <br /> P g <br /> Ik 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 /> 1' 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 /> t <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 /> i <br /> E <br />