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1 <br /> Marci's Diesel Service �", -3- December 21, 2010 <br /> Claim No. 7709 <br /> A. Soil Excavation: excavation, unknown volume, was conducted to 29 feet below <br /> grade. <br /> B. In-Situ Soil Remediation: <br /> • METHOD: dual phase extraction pilot tests <br /> • DURATION: August 2010 , <br /> • MASS REMOVED: -5 pounds <br /> • ESTIMATE OF MASS IN SOIL: 108,000 pounds <br /> • ESTIMATED MASS DISSOLVED IN GROUNDWATER: 1 to 8 pounds <br /> C. Groundwater Remediation: <br /> • METHOD: air sparging <br /> • DURATION: proposed <br /> D. Groundwater Trends: TPH-D trends are shown below, source area and down <br /> gradient, respectively. <br /> f� <br /> , <br /> DIES L` i4NGE ORGANICS Results If �MW-7 <br /> 9000-1..... ._._....... _. ... _:._.._._... ...... .......Y -. <br /> 8000 <br /> pp, <br /> 6000 -;»— <br /> w 4000- <br /> 3000-- <br /> 2000-- <br /> 10001--- <br /> 0 <br /> 000 3000 20001000 <br /> + �r <br /> DIESEL RANGE ORGANICS <br /> California EnvironmentalProtection Agency <br /> P.a Recy l d Paper <br /> .. I <br />