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Foppiano Investments -3- September 14 , 2010 <br /> Claim No . 14821 <br /> N <br /> V . FREE PRODUCT : none identified <br /> VI . SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation : unknown volume <br /> B . In -Situ Soil/ Groundwater Remediation : <br /> METHOD 1 : soil vapor extraction pending <br /> • METHOD 2 : ozone sparging pending <br /> D . Groundwater Trends : Benzene trends are shown below, source area and near <br /> down gradient, respectively . <br /> BENZENE Results for MW- 1 <br /> 12000 - - - - ___ <br /> 10000rr <br /> --- - -- _.-._ --_ -_-- - <br /> 7 <br /> 8000 <br /> sono <br /> . 4000 <br /> 2000 <br /> BENZENE 1 - <br /> BENZENE Results for MW-3 <br /> 71 <br /> 6 - <br /> BENZENE <br /> J <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 poorly defined to the <br /> south <br /> California Environmental Protection Agency <br /> Q* Recycled Paper <br />