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Valley Motors }^ -3- �`" March 24 2009 <br /> y Claim No. 12540 <br /> • METHOD: soil vapor extraction <br /> DURATION: 2005 through Nov 06 <br /> C. Groundwater Remediation:- - -- <br /> 0 <br /> emediation: -• METHOD 1: air sparging pilot test, ineffective <br /> METHOD 2: groundwater extraction pilot test, pending <br /> D. Groundwater Trends: <br /> • Benzene trends are shown below: <br /> oo� <br /> � .. BENZE�NE�Results for VM 2 3: <br /> 9000 r � 1 j <br /> 8000 i <br /> 2L <br /> 6000 — <br /> r <br /> ( i it 1 <br /> .5000 4000 -- <br /> s <br /> 3000 <br /> 2000 <br /> T000 <br /> {{ e <br /> i , r- r , i r:- <br /> ,. .,, <br /> ® BENZENE TT. <br /> VII. SENSITIVE RECEPTOR SURVEY: three wells identified within Y2 mile of the site <br /> Vlll. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> Site Description: active-retail gasoline station :- E <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, groundwater extraction pilot test <br /> is pending <br /> E. Contaminant Exposure Pathway Evaluation: unknown <br /> California Environmental Protection Agency <br /> P.a Recycled Paper <br />