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Fast and Easy Market -3- April 18, 2011 <br /> { Claim No. 16139 <br /> I D. Groundwater Trends: MTBE trends are shown below, source area <br /> I; <br /> METHYL TERT BUTYL ETHER (MTBE)�Resutts for 11IIW1 <br /> , saoij <br /> 3 x <br /> r ! <br /> to • <br /> r - <br /> , <br /> - <br /> I <br /> 300 <br /> .il S <br /> �- METHYL-TERT-BUTYL ETFIER.(MTB <br /> VII. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: former retail gasoline station" <br /> B. Site History: the extent of groundwater contamination is adequately defined <br /> C. Groundwater Monitoring Summary: strong monitoring history <br /> D. Remediation,Summary.-,.none-identified ;I <br /> E. Contaminant Exposure Pathway Evaluation:;AGE, consultant for Responsible <br /> Party, residual hydrocarbons are not likely to pose risk to human health or the <br /> environment. k <br /> F. Recommendation: <br /> In April 2008, the Fund recomm{ends that the San Joaquin County LOP direct the <br /> Responsible Party to define the',extent of groundwater contamination northeast of <br /> MW-1. The Fund will review this site next year to track progress. <br /> UPDATED, April 2009, by letterlon 13 May 2008, the�San Joaquin County LOP <br /> directed the Responsible Party to install additional wells to more adequately <br /> define the extent of contamination. The Fund concurs but suggests that the <br /> San Joaquin County LOP direct;the Responsible Party to assess the potential for <br /> vapor migration into site structu,res. The Fund will review this site next year to <br /> track progress. <br /> UPDATED, April 2010,.the Fund recommends that the San Joaquin County LOP <br /> consider reviewing this site for closure. <br /> California En viranmental Protection Agency <br /> 4 P. R,,yiPaper ,i <br />