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C COMPUTATION SHEET . <br /> PROJECT TITLE: USA Service Station No.65 PROJECT NO. 2007-0065-01 <br /> DESCRIPTION: Mass Emission rates SHEET 2 OF 4 <br /> PREP. BY: Kiran Nagaraju DATE: 11/2/2004 CHK BY: G. Kowtha DATE: <br /> DATA <br /> F <br /> 10/20/2004 <br /> Field air flow velocity (fpm) 2,000 <br /> Total field influent air flow rate (acfm) ' 43.65 <br /> System influent air flow rate(after dilution), acfm 46.00 <br /> Influent air temperature(°F) 68 <br /> Effluent air temperature(°F) 50 <br /> i Applied vacuum ("WC) 13.6 <br /> Effluent air flow rate (scfm)2 46.00 <br /> Influent concentration of TPHG (mg/m) 17,000 <br /> System influent concentration of TPHG (mg/m) 5,300 <br /> Influent concentration of benzene(mg/m) 14 <br /> System influent concentration of benzene (mg/m) 4.4 <br /> Influent concentration of MTBE (mg/m) <10 <br /> System influent concentration of MTBE (mg/m) <2.5 <br /> Effluent concentration of TPHG (mg/M3) <12 <br /> Effluent concentration of benzene(mg/m) <0.12 <br /> Effluent concentration of MTBE (mg/m3) <0.12 <br /> t Flow rate=Air Velocity(feet per minute)*Area of 2" diameter pipe (fe) <br /> Flow rate= 2,000 * f3.14* (2/12)2 inch *feetZ <br /> 4 inch2 <br /> = 43.65 acfm <br /> 2, Effluent air flow rate= system influent air flow rate <br /> I <br /> Source Test Cafcs&summary—October 2004 <br />