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r <br /> Shell sites in San Joaquin County <br /> Page 2 <br /> 2320 El Dorado Street Stockton <br /> EHD staff was not available to discuss this site. <br /> 2494 Fremont Street. Stockton - <br /> ARCO has been named as a responsible party for the site (2478 E. Oak Street) to the north of this <br /> site and will be g <br /> investig atin the extent of the contamination at that site. Shell should evaluate <br /> whether remediation is necessary and feasible on their site. <br /> 1 2375 Grant Line,Tracy <br /> Groundwater extraction by a vacuumtruck from NIW1-and MW6 is being performed monthly to <br /> j reduce the concentrations of MTBE in these,Nvells. A presentationwas made by Dan Lescure that it <br /> l was not cost-effective to continue the vacuum truck groundwater extraction events and that <br /> monitored natural attenuation should be considered. EHD requires complete definition of the <br /> j contaminant plumeto consider this alternative..Although down-gradient off-site assessment is <br /> impeded by the location of Hwy 205, further investigation down gradient, across Hwy 205 is I <br /> required. <br /> 341 Main Street.Ripon - <br /> CRA will correct the table in'the Care Cloture Summary Report and upload the revised report to I <br /> GeoTracker. Once EHD has received this report,EHD will proceed with providing the needed <br /> z information to the Central Valley Regional Water Quality Control Board for case closure <br /> consideration. <br /> 7700 Moreland Street,Stockton <br /> A closure report wassubmitted for review. <br /> 6131 Pacific Avenue. Stockton - <br /> j Dual-Phase extraction will be initiated once the City of Stockton issues Shell a permit to dispose of - <br /> extracted groundwater to the city server. <br /> i <br /> 3725 Tracy Blvd.Tracy <br /> �. A.closure.report was submitted for review. <br /> 880 Victor Road Lodi <br /> The temporary groundwater extraction system willeontinue to be operated since the contaminant <br /> jplume is not defined to the south-southeast and the adjacent property to the south and east <br /> i have not allowed monitoring wells to be installed on their property. Extraction of groundwater from <br /> 11 MW7 in the southeast corner ofthe property should be evaluated as a method to keep contanunants <br /> from migrating to the adjacent parcels. <br /> t 4315 Waterloo Road Stockton <br /> 1 EHD staff was not available to discuss this site. - <br /> 1160 Yosemite Avenue Nlanteca <br /> A work plan addendum will be submitted to EHD that will possibly include installing another <br /> - monitoring-well or advancing a CPT boring located north of the site to investigate the groundwater <br /> contamination north of MW-3 andNIW-4. There are safety:issues to consider since this site is - <br /> located at a busy intersection in Manteca. <br /> I <br />