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i <br /> Stefano's Gasoline3- September 2, 2010 <br /> {, Claim No. 11515 <br /> B. In-Situ Soil Remediation: 1rn' ' r °. - _ <br /> • METHOD: soil vapor extraction ,. , ? <br /> • DURATION. Nov' 04 through Jun 05 <br /> • MASS REMOVED: '2,375 pounds of"TPH-G'` <br /> C. Groundwater Remediation: <br /> • METHOD- ozone sparging <br /> DURATION-. Jar' 06.through'Aug 06, expansion proposed in 2009 . <br /> -' <br /> D. Groundwater Trends:' <br /> Benzene trends are shown below, source area and down gradient, <br /> respectively. =_ . x.. , ;�,r ;e• <br /> yBENZENE:Resialt5'for iVIW2 <br /> 5000 k .. <br /> `4500 <br /> ,4000 i y f �' <br /> 3500 -� s r.-+max .j.; +9a — s --'r � v.+,�, � ;91 <br /> Z3 3000 <br /> 2500 <br /> a 2000 - <br /> 1500 — -z —. I — I — <br /> .1000 <br /> 500 {s$ s <br /> 0 — <br /> ` s <br /> ' s <br /> �sw..BENZENE <br /> :BENZENE.Results for MW1 <br /> 3000 _ 1— w.�-..1 <br /> 2500 <br /> J 2000 -r — <br /> `.1500 <br /> _ <br /> 75. I <br /> 1000 <br /> 500 <br /> 0 <br /> e:w...:..BENZENE <br /> - �� - <br /> California Environmental Protection,Agency <br /> P„�Recycled Paper - <br />