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5/18/94 <br /> Add P3 , VSBS, VSB9, VSB11 to the system, set system to pull <br /> in the following groupings : <br /> P3, VSB13 , and VSB5 <br /> VSB9 . <br /> VSB11 and VSB1.4 <br /> VSB15 <br /> MW5 . <br /> 5/18/94 <br /> Collect influent and effluent samples of the system, and <br /> vapor samples from the five collection laterals listed <br /> above for analysis at WEGE laboratory. Flow rate 64 . 86 cfm. <br /> VAPOR SAMPLING <br /> COLLECTING LABORATORY SAMPLES <br /> Influent Sample <br /> The influent sample is obtained from a sample port located after <br /> the system vacuum pump before the carbon canisters . Sterile poly <br /> tubing is used to attach a 1 liter tedlar bag, fitted with a <br /> special septum valve and tubing bib, to the sample port The <br /> sample port is on the pressure side of the pump and therefore the <br /> bag will fill without need of a pump Once the tedlar bag is <br /> filled, its valve is closed and locked and the appropriate label <br /> is placed on the tedlar bag <br /> Effluent Sample <br /> A sample port for the effluent is located in the exhaust stack of <br /> the final canister. The flow pressure from the exhaust is great <br /> enough to fill a tedlar bag Sterile poly tubing is fitted to <br /> the exhaust port and the tedlar bag Then the sample valve of <br /> the tedlar bag is opened and the bag is filled with the sample. <br /> Once the tedlar bag is full, the valve is closed and locked, the <br /> sample port closed, and the appropriate label is placed on the <br /> bag <br /> The labels for both the influent and effluent tedlar bag samples <br /> show the date, time, sample ID## and analyses to be run <br /> Both the influent and effluent tedlar bag samples are then placed <br /> within a cooler, on ice, and are hand delivered to WEGE' s <br /> laboratory that same day. <br /> r� <br /> page 3 of R604 , 06/06/94 <br />