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pe9a¢.pepo IQ Alr MonMm-"d <br /> fi =,ded pUM Vepm Emaabn Test <br /> 6131 Pectlic Ave .StOe M CWOrnb <br /> On December 26, 1991, concentrations of TPH indicated in the influent air were measured <br /> at 24,000, 23,000, and 28,000 parts-per-million by volume (ppmv), and the concentrations <br /> of TPH indicated in the effluent air were measured at 35, 35, and 40 ppmv. The <br /> December 27, 1991, measurements indicated influent at 6,500, 5,500, and 5,500 ppmv <br /> and effluent at 40, 50, and 35 ppmv. Table 1 summarizes the field monitoring data. <br /> Radius of influence parameters were monitored on December 3, 1991, with the IC unit <br /> drawing solely from VEW-1, VEW-2, and from both VEW-1 and VEW-2, by measuring the <br /> vacuum in all three groundwater monitoring wells on site (MW-1, MW-2, MW-3; Figure 2). <br /> Vacuum in each well was measured by inserting a magnehelic gauge in the top of the well <br /> and taking vacuum readings (in inches of water) from the gauge. Well MW-2 indicated <br /> the highest vacuum reading, followed by MW-3 and MW-1, at 0.40, 0.38, and 0.17 inches <br /> of water, respectively. <br /> 3- <br /> 90-0201.RPT <br />