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Del Monte Foods - <br /> Claim 2612 March 24, 2008 <br /> D. Groundwater Trends: <br /> • 1,2 DCA trends are shown below ` <br /> Claim 2612 <br /> F2500 <br /> -�-MW-1 <br /> 1500 <br /> r 1000 -if--NP-1-80 <br /> 500 <br /> 0 <br /> & 06 OHO 'Z 01 II <br /> bac 5eQ mac �eQ bac <br /> 4< 40 4 4 5�Q 4 <br /> Time <br /> i <br /> i <br /> VII. SENSITIVE RECEPTOR SURVEY: no wells identified within '/z mile of the site <br /> i <br /> VIII. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: retail gasoline station f <br /> B. Site History: the extent of groundwater contamination is defined <br /> C. Groundwater Monitoring Summary: strong monitoring history <br /> D. Remediation Summary: soil vapor extraction, air/ oxygen sparging <br /> E. Contaminant Exposure Pathway Evaluation: unknown <br /> F. Recommendation: Based on the following criteria, the Fund recommends this <br /> site be considered for closure providing the potential for soil vapor migration is <br /> assessed and determined safe for prescribed site activities, public participation <br /> and fee title notifications are conducted, and the monitoring wells are <br /> appropriately abandoned. <br /> • The source of the UST release has been identified and removed. <br /> • Free-phase product in groundwater has been removed to the full extent <br /> practicable, in accordance with the UST Regulations (Title 23, CCR, <br /> Section 2655). <br /> • Contaminants remaining in the vadose zone cannot migrate in soil vapor <br /> or leach at concentrations that would cause groundwater to exceed water <br /> quality objectives. <br /> I <br /> California Ea viroameatal Protecdon Agency <br /> A <br /> ' - �d Recyc%dPeper <br /> i <br />