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1 . <br />' Influent Water Sammi <br /> On February 7, 2001, ASE collected an influent water sample (INF 02-07- <br /> 01) This sample was analyzed by Kiff Analytical of Davis, California (ELAP <br /> #2236) for a full scan EPA Method 8260B and for TPH as diesel by EPA <br /> Method 8015 The analytical results for this sample are tabulated in t h e <br /> Tables Section of this report as Table One The influent water sample <br /> analytical report and chain of custody record is attached in Appendix B <br />' Monthly Eued Recovery Calculations <br /> The influent TPH-G concentration was used to calculate the estimated <br />' mass removed from the site during the month based on total gallons <br /> treated The Monthly Performance Log is presented as Table Two in the <br />' Tables Section of this report It shows that based on the number o f <br /> gallons extracted in the month of February 2001, which was 219,220 <br /> gallons, and assuming a constant TPH-G concentration of 11,000 parts p e r <br />' billion in the influent water stream, the system recovered approximately 3 <br /> gallons of gasoline from the groundwater beneath the site To date, it i s <br /> estimated that nearly 30 gallons of gasoline have been removed from the <br /> subsurface <br /> Should you have any questions regarding this report, or require any <br /> additional information, please feel free to call me at (925) 820-9391 <br /> Respectfully submitted, <br /> AQUA SCIENCE ENGINEERS, INC <br /> I r <br /> IDavid Allen <br /> Senior Project Engineer <br /> Attachments <br /> cc Mr Frank Guinta, Property Owner <br /> Mr Don Thompson <br /> Mr Marty Hartzell, RWQCB <br /> Mr Mark Owens, UST Cleanup Fund <br /> Mr Jim Podesta, City of Manteca <br /> Frank's One Stop Remediation System Monthly Report — February 2001 <br /> -3- <br />