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T&T Trucking -3- April 28 201'1:'' <br /> Claim No..-10934 <br /> C. Groundwater Trends: MTBE trends are shown below, source area <br /> METHYL-TERT-BUTYL ETHER (MTBE)Results for MW1 <br /> ak J 160000 I <br /> 140000- <br /> . <br /> 40000k_ 1 <br /> 120000 .......CC <br /> 10000080000 ..-� � <br /> 4Q660 <br /> 20000 - <br /> I <br /> MTBE —Tran' <br /> ETHYL-TERT-BUTYL ETHER(M ) <br /> fl v <br /> - S <br /> METHYL-TERT-BUTYL ETHER (MTBE) Results for MW4 <br /> 10000 <br /> 9000 <br /> s000 . <br /> W <br /> s000 _ <br /> s000 _.. .. <br /> 14 4000 <br /> 3000 _ <br /> 2000 <br /> 1000; -; <br /> —4 <br /> '� � +' <br /> METHYL-dT�ERT$UTdY`_L ETHER(MTBE) a Trend1 I <br /> I'� .. �. <br /> VII. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description-, former truck fueling area <br /> B., Site..HiStory: Lthe extent of;groundwater,contamination;is defined.;rshrinking. <br /> C. Groundwater Monitoring Summary: strong monitoring history <br /> D. Remediation Summary: soil vapor extraction and air sparging are underway <br /> E. Contaminant Exposure Pathway Evaluation: unknown <br /> F. Recommendation: <br /> In May 2008, the Fund recommends that the San Joaquin County LOP should <br /> direct the Responsible Party to implement active remediation to achieve Water <br /> Quality Objectives in a timely manner: The Fund concurs with this action and will <br /> Y <br /> 14, review this site next year to track progress. <br /> UPDATED, May 2009, this site has been under investigation for 14 years. The <br /> I Fund concurs with the San Joaquin County LOP that active remediation should <br /> continue. The Fund will review this site next year to track progress. <br /> California Environmental Protection Agency <br /> ea Kecyded Paper:. <br />