Laserfiche WebLink
i <br /> 4TH Quarter SVES Report, Beacon#502 Lodi <br />�£ <br /> FORMULA FOR CALCULATING HYDROCARBON MASS REMOVAL RATES <br /> The hydrocarbon mass removal rates(extraction rates in lbs/day) presented in the various <br /> tables were calculated using the following formula: <br /> lbs/day= (VOC or BZ ppm) x (hrs/day) x(coef)x (scfin) <br /> Where: <br />�j VOC =Volatile Organic Compounds(Non-methane gasoline hydrocarbons) <br /> BZ= Benzene <br /> ppm=Concentration in parts per million(vol/vol) <br /> hrs/day=Operational hours per day <br /> scfin=Air flowrate in standard cubic feet per minute <br /> coef=Units of measure conversion coefficient(see below) <br /> Gasoline 0.0000148 - (lb)------------- <br /> (ppm x scfin x hr) <br /> Benzene= 0.00001217 (1b)-------------- <br /> (ppm x scfin x hr) <br /> The vapor concentrations and flowrates are expressed in terms of standard temperature <br /> and pressure conditions consisting of 200C and 760 mm Hg. <br />�r <br />�I <br /> 5 <br />