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Job No. 00760 Page: 3 <br /> E� <br /> - .... possible contaminants to the atmosphere. <br /> Vacuum influence gauges were transported in a foam packing <br /> to insure their accuracy. <br /> C <br /> RESULT. AND DISCUSSIQNVMS <br /> s <br /> i <br /> i <br /> 3 <br /> s The performance test was conducted using existing vapor <br /> t <br /> recovery wells VW-6, VW-7, VW--8, VW-9 and groundwater <br /> monitoring wells MW-1, MW-2, MW-3 and MW-4. The depth to <br /> groundwater varied from 51.55' to 52 .600' (See table 2) . <br /> { The gases present in wells VW-6, VW-7, VW-8, VW-9 and MW-4 <br /> I <br /> (the five wells currently piped for vacuum extraction) , <br /> were analyzed for total hydrocarbon concentrations on a <br /> } volume/volume basis (See table 3) . Analysis was performed <br /> { <br /> '. using a Flame Ionization Detectar (FID) . The average <br /> hydrocarbon concentration was 27,300 ppm, with a range from <br /> 25, 500 - 29,000 ppm. Monitoring well MW-2 was not piped, <br /> but a conduit from the manifold area to the well is <br /> present. <br /> Four vapor recovery wells (VW-6, VW-7, VW-8, and VW-9) and <br />