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1 <br /> Vspor Extraction System Sample Calculations <br /> Moore Petroleum,Inc,14800 w Frontage Road,Manteca,CA <br /> Ia the case of February 28, 1995, the average volumetric eWgOgn rate pf IM as gasolyt ,for <br /> `�t`liepend between February 21, 1995 gnnd FOruary M 1995 i$found by averaging the <br /> volumetric extrac#on rate on Febnrazy 21, 1995 ad February 28, 1995 This is tine as fol qws- <br /> f (1 SE-05lb+2 0E-05 tb <br /> girl -;,—a) <br /> g =1.9E-05 Ib TPH,as gasoline <br /> 2 girl <br /> The result is 1 9E-05 lb/gal of TPH, as gasoline This method may be applied to the benzene <br /> extraction rates for this same pend resulti ig in 3 5-5E-06 lb/gal of benzene These average <br /> volumetric rates maybe applied over the time period of interest From February-21, 1995 to <br /> February 28, the water treatment system pumped 510 gallons of liquid The total flow for the <br /> period of interest multiplied by the average volumetric extraction rate for each substance of <br /> interest will result m an extraction total for the period of interest The result is as follows <br /> TPH,as gasoline- 1 9E-05 Ib1 X 510gal=9 7E-,03 Ib <br /> ga <br /> Ib x 0 al- 8E-03 Ib <br /> Benzene 3 55E-06 51 g 1 <br /> Therefore, from the pend of February 21, 1995 to February 28, 9 7E-03 pounds of TPH,,as <br /> gasoline, was extracted and 1 8E-03 pounds of benzene was extracted To calculate the <br /> cumulative quantity of extracted substances, the quantity extracted for a period will be added to <br /> the previous cumulative quantity extracted for each substance In the case of TPH, as gasoline, <br /> 9 7E-03 pounds will be added to 0 20 pounds, wluch will yield 0 21 pounds In the case of <br /> benzene, 1 8E-03 pounds will be added to 0 028 pounds to yield 0 030 pounds of benzene <br />