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i <br /> KLEINFELDER <br /> During the Third Quarter, air samples were collected on September 1, 2005 for the <br /> performance evaluation of the catalytic oxidizer. The laboratory results showed inlet <br /> concentrations of TPH-g and benzene concentrations at 360 ppmv and 0.091 ppmv, <br /> respectively. The outlet results showed TPH-g and benzene concentrations of 2.1 <br /> ppmv and non-detect, respectively. The destruction efficiency of the catalytic oxidizer <br /> was calculated at 99%. The volumes of TPH-g and benzene estimated removed this <br /> quarter reflects a decrease over last quarter and previous quarters. The total estimated <br /> pounds of TPH-g removed during Kleinfelder's operation of the system is approximately <br /> 25,854 pounds (per date of the sampling). <br /> i. <br /> Photoionization detector (PID) readings were recorded from VE-1, VE-2, VE-3, VE-4, <br /> VE-5, and the mainline before and after the dilution valve on July 22, August 26, and <br /> September 29., 2005. The PID readings ranged in concentrations from 126 ppmv to <br /> 359 ppmv in the VE samples, and 181 ppmv to 344 ppmv in the mainline samples. <br /> GENERAL RECOMMENDATIONS <br /> At this time we recommend continued monitoring of the groundwater in accordance with <br /> the established frequency and methods. <br /> Kleinfelder recommends that Del Monte Foods submit a copy of this report to Mr. Mike <br /> Infurna of the San Joaquin County Public Health Services Department Environmental <br /> Health Division (EHD) and Mr. Jim Barton of the Central Valley Office of the State of <br /> California Regional Water Quality Control Board (CVRWQCB) for their review and <br /> consideration. <br /> This report is subject to the limitations in Chapter 7 of this report. <br /> i <br /> 12280.M0N/ST05R1424/CD:Iv Page 3 of 14 <br /> ©2005, Kleinfelder, Inc. November 15,2005 <br />