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• i • <br /> CAMBRIA <br /> TPHg Benzene MTBE <br /> Site Flow Meter Cumulative Flow TPHg Penod Cumulative Benzene Period Cumulauve MTBE Penod Cumulative <br /> Visit Reading Volume Rate Cone Removal Removal Conc Removal Removal Cone Removal Removal Active <br /> (My ) ( al) ( al) ( m) (Ppb) (Pounds) (pounds) (Ppb) (pounds) (pounds) (ppb) (pounds) (pounds) Wells Comments <br /> 09/24/02 927,730 927,710 060 31,000 629 3889 4 400 0 893 5673 33,000 670 544 5 RW IA <br /> lOM7/02 953,205 953,185 136 23,000 489 3937 3,300 0 701 5743 36,000 765 5522 RW IA <br /> 10/12/02 1,013,230 1,013,210 278 33,000 1653 4103 3,500 1 753 5918 28,000 1402 566.2 R W-lA <br /> NOW-, <br /> I <br /> Abbreviations&Notes <br /> TPHg=Total purgeable hydrocarbons as gasoline <br /> MTBE=Methyl tart butyl ether <br /> Corr =Concentration <br /> ppb=Parts per billion,equivalent toµg11. <br /> gA=Micrograms per Itter <br /> L=Liter <br /> gpm=Gallons per minute <br /> gal=Gallon <br /> g a Crram <br /> NS=Not sampled <br /> Mass removed based on the formula volume extracted(gal)x Concemranon(Iig/L)x(gf 106Ag)x(pound/453 6g)x(3 785 Ugal) <br /> When constituents are not detected,the concentration is assumed in be equal to half the detection hmrt in subsequent calculations <br /> Volume removal data based on the formula mass(pounds)x(density)-I(cm3/g)x 453 6(g/pound)x(iJlOW cm')x(gaW 785 L) <br /> Derwty inputs TPHg=0 73 glcm3,TPHd=0 87 glom],MTBE=0 74 g1cm3 <br /> TPHg,benzene and MTBE analyzed by EPA Method 8260B <br /> Page 2 of 2 <br /> 0783 <br />