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Remedial System Enhancement Pian--Former Tosco(Unocal)Service Station No 6981 " <br /> August 8,2001 <br /> a <br /> DISADVANTAGES 1) Limited data on vadose zone <br /> f <br /> CONCLUSION A feasible remedial technique for this site An aggressive approach <br /> to remediate residual hydrocarbons in groundwater and supplement <br /> current VES operations <br /> REMEDIAL ENHANCEMENT AND MODIFICATION PLAN <br /> Based on the various remedial enhancement alternatives evaluated in this CAP, GR presents the <br /> following recommendation for remedial action <br /> 5 <br /> 1) Install C-Sparge'"remedial system at the site Conduct operation, maintenance and evaluation <br /> of the system for effectiveness In addition, replace the current VES (catox) with a mechanical <br /> blower with an activated carbon abatement system Prepare a System Evaluation Report after six <br /> months of system operation A detailed system design will be submitted within 30 days of <br /> SJCEHD approval <br /> DISTRIBUTION <br /> A copy of this Corrective Action Plan should be sent to Ms Margaret Lagorio of the San Joaquin County <br /> Environmental Health Division at 304 East Weber Avenue,Third Floor', Stockton,California 95202 and Mr <br /> • David Luick of Dayton Hudson Corporation -Target at P O Box 9411, Minneapolis, Minnesota 55440 <br /> t _ <br /> 34012410 6 <br />