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During the initial month of operation, three effluent samples were <br /> obtained during the day and analyzed using the 1OS50 chromatograph. <br /> The highest value is used to calculate the VOC poundage per day <br /> produced. Presently, an influent and an effluent sample are <br /> obtained upon arrival to the site. Adjustments are then made to the <br /> vapor extraction system. removal of liquids from the condensation <br /> traps; closing the air dilute valve to maximize vapor removal, <br /> without causing the REMOX Unit to shut down due to high temperature <br /> shut off (greater than 15500F) ; and closing the pump bypass to <br /> create maximum flow and vacuum from the wells . Once, these <br /> adjustments have been completed and the system has stabilized, <br /> influent and effluent samples are again obtained, along with samples <br /> from the individual extraction orifices (wells) . The site is then <br /> secured until the next visit <br /> page 4 of R603 , 05/23/93 <br />