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A. TEICHERT & SON, INC. <br /> SVE PILOT TEST <br /> r <br /> AIR CALCULATIONS <br /> Air Velocity = 1096.2 vpv CFM = Cross Sectional Area X Velocity <br /> D <br /> r Pv = Velocity pressure in inches H2O <br /> i <br /> D = Air Density in Ibs/ft <br /> Pb = Barometric pressure in inches Hg <br /> T = Temperature absolute (°F + 460) <br /> 1 Test Conditions March 16, 1994 12: 55 hrs. <br /> Well Vacuum = 97 " WC Gauge <br /> Pv = 0.155" WC Gauge <br /> To = 143.8°F <br /> 1 <br /> D = 1.325 X 29.90 = 0.0656 V = 1096.2 VO.155 = 1685 <br /> 603.8 0.0656 <br /> 1 CFM = 1885.0 X 0.0218 = 36.7 <br /> SVE Air Sample Analysis Calculations <br /> Molecular wight gasoline = 114; Constant = 24.05 <br /> Analytical Results TPH as gasoline = 62 ug/ml <br /> r <br />