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I <br />' operation, did the effluent entering the sewer line contain any detectable <br /> concentrations of any of the compounds tested The effluent water <br />' sample analytical reports and chain of custody records are attached in <br /> Appendix A <br />' Influent Water SanjuL <br /> On January 30, 2002, ASE collected an influent water sample (INF <br />' 01 30 02) This sample was analyzed by Kiff Analytical of Davis, <br /> California (ELAP #2236) for TPH-G, BTEX, the five fuel oxygenates, and lead <br /> scavengers by EPA Method 8260B The analytical results for this sample <br />' are tabulated in Table One The influent water sample analytical report <br /> and chain of custody record is attached in Appendix A A graph showing <br /> the historical TPH-G concentrations in the influent water samples is <br />' attached in the Graph Section of this report <br />' InfLuent Air Sammi <br /> On January 30, 2002, ASE collected an influent air sample (INF-VE- <br /> 01 30 02) from the manifold of the 7 VE wells This sample was analyzed <br />' by Kiff Analytical of Davis, California (ELAP #2236) for TPH-G, BTEX, t h e <br /> five fuel oxygenates, and lead scavengers by EPA Method 8260B The <br /> analytical results for this sample are tabulated in Table Two The influent <br />'• air sample analytical report and chain of custody record is attached in <br /> Appendix A <br /> MONTHLY FUEL RECOVERY CALCULATIONS <br />' Mass Removed by Groundwater Recovery System <br />' The influent TPH-G concentration in water was used to calculate the <br /> estimated mass removed from the site during the month based on total <br /> gallons treated The Monthly Performance Log is presented as Table <br /> Three It shows that based on the number of gallons extracted in t h e <br /> month, which was 175,140 gallons, and assuming a constant TPH-G <br /> concentration of 1,200 parts per billion in the influent water stream, the <br /> system recovered 029 gallons of gasoline from the groundwater beneath <br /> the site To date, it is estimated that 130 93 gallons of gasoline have been <br /> removed from the subsurface <br /> IThe influent TPH-G concentration in air was used to calculate the <br /> . estimated mass removed from the vadose-zone beneath the site during <br /> Frank's One Stop Remediation System's Monthly Report — January 2002 <br /> -4- <br />