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Table 1 <br /> VAPOR ANALYTICAL SUMMARY <br /> VENTING WELL MW-1 <br /> Concentration(ppm-v) <br /> iDate Tune Benzene Toluene Ethylbenzene Xylenes BTEX TPH <br /> 1 11/1/94 1015 290 1,200 210 750 2,450 14,000 <br /> 1345 90 240 30 110 470 5,300 <br /> 1552 140 450 65 240 895 7,200 <br /> ppm-v Parts per million by volume <br /> 1' <br /> Table 2 <br /> BTEX REMOVAL RATE <br /> ' VENTING WELL MW-1 <br /> BTEX Air Flow Calculated BTEX <br /> Concentration Pressure Rate Air Flow Rate Removal Rate* <br /> Date Time m-v) (tn H2O) (cfm) (scfm) lbs Air) <br /> 11/01/94 1015 2,450 -54 28 24 087 <br /> 11/01/94 1345 470 -54 27 23 0 16 <br /> 1 11/01/94 1552 895 -56 28 24 031 <br /> *Source "Estimating Air Emissions from Petroleum UST Cleanups,"USEPA,.Tune 1989 <br /> Formula used ER=(Q x C x MW x 1 581 a-7) <br /> Where ER=Emission Rate(lb/hr) <br /> Q=Pumping rate(scfm) <br /> C=Soil gas concentration(ppm-v) <br /> MW=Molecular weight of contaminant(lb/ib-male) <br /> I%M=92 <br /> ' 2/95/5112138211259971FRP_PILT APP <br />