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Mohammed Mater -3- May 4 , 2009 <br /> Claim No . 14840 <br /> • METHOD : groundwater extraction pilot test (Aug 05) , considered ineffective <br /> D . Groundwater Trends : <br /> • MTBE trends are shown below : <br /> METHYL-TERT-BUTYL ETHER ( MTBE ) Results for MW2 <br /> 25000 -- -�- --- -- -- - - - _ —- - - 20 <br /> - I <br /> zz <br /> 20000 - - - - -- - - - - - -- -- I <br /> I <br /> za <br /> - 26 ^ <br /> L 15000 <br /> ?. - 28 ,c <br /> 10000 - ( 30 <br /> 32 <br /> 5000 <br /> ( � 34 <br /> -, I t - 36 <br /> 0 - - 1'.. _. . <br /> voce ^naf' ave <br /> �°, a^ a <br /> L -- -- METHYL-TERT-BUTYL ETHER (MTBE) Depth to Water <br /> VII , SENSITIVE RECEPTOR SURVEY: no wells identified within 'Yz mile of the site <br /> VIII . COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description : former retail gasoline station <br /> B. Site History: the extent of groundwater contamination is undefined to the east <br /> C . Groundwater Monitoring Summary: strong monitoring history <br /> D. Remediation Summary: none conducted <br /> E. Contaminant Exposure Pathway Evaluation : unknown <br /> California Environmental Protection Agency <br /> Za Recycled Paper <br />