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4 <br /> Table 1. Soil Vapor Concentrations. <br /> LOCATION DEPTH TVH FLOW RATE <br /> (feet) (ppm) (cfh) <br /> A 12-14 ND 2 <br /> A 17-19 ND 3 <br /> B 8-10 ND 11 <br /> B 12-14 ND 6 <br /> B 1719 ND 3 <br /> C 12-14 ND 2.5 <br /> C 17-19 ND 3 <br /> D 12--14 ND <2 <br /> D 17-19 ND 3 <br /> E 8-10 ND 3 <br /> F <br /> E 12-14 125 20 <br /> E 17-19 ND 3 <br /> F 12-14 ND 4 <br /> F 17-19 ND 3 <br /> G 12-14 ND 5 <br /> G 17--19 ND 3 <br /> H 8-10 ND 4 <br /> H 12-14 ND 2 <br /> H 17-19 ND 3 <br /> I 12-14 13,375 20 <br /> 1 17-19 16,750 3 <br /> J 12-14 3,150 19 <br /> J 17-19 3,625 3 <br /> K 12-14 100 5 <br /> K 17-19 1,875 6 <br /> L 12--14 ND 4 <br /> L 17-19 ND 4 <br /> M 12-14 ND 3 <br /> M 17-19 ND 2 <br /> N 12-14 ND 20 <br /> N 17-19 ND 4 <br /> 0 12-14 7,075 20 <br /> 0 17-19 8,700 3 <br /> 2 <br /> Location - Vapor probe locations as indicated on <br /> Figure 1. <br /> Depth - Perforated range of probe at sampling location. <br /> TVH - Total volatile hydrocarbons as propane (C3H8) on a <br /> volume/volume basis. <br /> Flow Rate - Volumetric flow rate in cubic feet per hour <br /> extracted at the extraction point. <br /> ,.� ND .. Below detection limit of 25 ppm. <br />