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i <br /> k4 KLEINFELDER <br /> i <br /> The frequency, type, and location of these samples are provided below: <br /> � I <br /> TABLE 4-2 <br /> SVE/AS SAMPLING SCHEDULE <br /> S stem Com' onent` Parameter.' Method .Fr: uenc:, <br /> Vent Well TPH/BTEX/DCA EPA TO-14 Once <br /> Total VOCs FID Howl <br /> System Outlet TPH/BTEXIDCA EPA TO-14 Once <br /> Total VOCs PID Hourly <br /> Monitoring Wells <br /> (MW-DIS-1,AS/SVE-1, Dissolved Oxygen An hour after startup then at <br /> AS/SVE-2,NP-1,NP-2,and Dissolved Oxygen Meter middle and end of operations <br /> MW-DIS-9 <br /> 4.3.3.1 Management of Entrained Water <br /> In the course of normal operation the system may accumulate water vapor during the soil vapor <br /> extraction process. Based on previous experience with similar systems, no more than 50 gallons <br /> of entrained liquid is anticipated to accumulate during operation, which is within the capacity of <br /> the proposed knockout drum. Should more than 55 gallons accumulate, water vapor collected in <br /> the liquid entrainment vessel will be transferred to 55-gallon drums labeled as a hazardous waste <br /> awaiting.analysis, and temporarily stored. The drum(s) will be analyzed for the full suite of EPA <br /> Method 260 compounds to profile the liquid and facilitate manifesting, transport, and disposal <br /> or recycling at a permitted disposal facility. If excessive moisture entrainment becomes a <br /> problem, it may become necessary to modify the system by introducing dilution air, thus <br /> reducing overall venting system pressure and flow rate. <br /> 4.4 OZONE SPARGING OPERATION <br /> The ozone sparging portion of the test will be performed for the four days following the air <br /> sparging to evaluate the ozone and oxygen influence of the sparge well. It is expected that the <br /> flowrate maintained by the sparge well will be 3-5 scfin. This flowrate is sufficient to provide <br /> sufficient exit velocity to drive lateral transport of air, and low enough to prevent fugitive <br /> emissions of ozone to the surface. Ozone and TPH monitoring will be used to ensure that sparge <br /> air has not migrated to the surface in detectable amounts. It is expected that both of the sparge <br /> iwell nests will be run simultaneously and continuously through the four-day test period, but <br /> separate operation may be implemented to gather more specific radius of influence data relative <br /> f to sparge depth. <br /> E <br /> 12280/2002R476 Page 18 of 26 <br /> { Copyright 2002 Kleinfelder,Inc. May 17,2002 <br />