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FIELD NOTES <br /> RANCH MARKET , <br /> February 12, 2004 <br /> Mobilized the new ECAT 300 skid H6ok6d up the skid's electrical panel to the site power - - <br /> source and connected the vacuum line from the skid to the well manifold ' <br /> Fired up the system with the chamber temperature set at 700 degrees, flow at 220 _ <br /> PID influent= 85 and effluent= 37 <br /> In response to the low influent concentration we took PID readings on the individual wells ' <br /> PID <br /> V1, V4, V7, V8, V9, V10 all less than 25 ' <br /> V2 - 185 <br /> V3 - 50 <br /> V5 - 150 S <br /> V6 -220 ' <br /> Closed vacuum to all wells except V2, V5, and V6 and total system AID ' <br /> PID <br /> Influent- 175 <br /> Effluent-35 <br /> Effluent concentration was too high Thus, we removed the CAT cell and cleaned up with water <br /> Replaced the CAT cell and re-seated and sealed We varied the temperature to see which <br /> temperature would yield the contaminant destruction <br /> -=Effluent-PID -- <br /> 700 degrees-27 <br /> -----"_800-degrees r 13�-'-;!` ---- - - - ------ - - - - - -- — <br /> 900 degrees-7 <br /> To ensure that the CAT cell was performing at optimum levels we decided to "Bake"the CAT , <br /> cell by running the system open to the atmosphere at 900 degrees for several days <br /> u _ <br />