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• i • <br /> CAMBRIA <br /> Table 3 Interim Remediation-Liquid Phase Mass Removal-Shell-branded Service Station,6131 Pacific Avenue,Stockton,California <br /> TPHg Benzene MTBE <br /> Elapsed Flow Meter Period Cumulative Flow TPHg Period Cumulative Benzene Period Cumulative MTBE Period Cumulative <br /> Time Time Reading Volume Volume Rate Conc Removal Removal Cone Removal Removal Cone Removal Removal <br /> (hhmm) (min) ( al) ( al) (gal) (-) (ppb) ( ounds) (pounds) (ppb) (pounds) ( ounds) (ppb) ( ounds) (pounds) <br /> VEW-2 DPE TEST <br /> 5/21/2004 Second Quarter 2004 Monitoring Event 150,000 4,600 <100 <br /> 612112004 11 45 0 0 0 0 000 90 000 0 000 0 000 1900 0 000 0 000 <50 0 000 0 000 <br /> 6/24/2004 8 30 4,125 3,486 3 486 3,486 085 349 349 0 118 0 118 0 002 0 002 <br /> 6/25/2004 8 00 150 000 6,200 <200 <br /> 9/14/2004 Third Quarter 2004 Monitoring Event 120 000 4 800 <100 <br /> Total Gallons Extracted 3,486 Total Pounds Removed 349 Total Pounds Removed 0 118 Total Pounds Removed 0 002 <br /> Avg Flow Rate 0 85 Total Gallons Removed 0 573 Total Gallons Removed 0 016 Total Gallons Removed 0 000 <br /> TPHg=Total petroleum hydrocarbons as gasoline,MTBE=Methyl ternary butyl ether <br /> min=minute gal=gallon gpm=gallon per miunute L=liter g=gram <br /> ppb=parts per billion,equivalent to liglL µglL=micrograms per liter <br /> When constituents are not detected,the concentration is assumed to be equal to half the reporting hmit in the mass calculation <br /> Concentration used in calculation is average of 6/21/04 and 6125104 samples <br /> Mass removed batted on the formula volume extracted(gal)x Concentration(gg/L)x(g/IC6}tg)x(pound/453 6g)x(3 785 Ugal) <br /> Volume removal based on the formula mass(pounds)x(density)'(cclg)x 453 6(g/pound)x(L11000 cc)*(gal/3 785 L) <br /> Density inputs TPHg=0 73 g/ce,benzene =0 88 glcc,MTBE=0 74 g/ec <br /> TPHg benzene,and MTBE analyzed by EPA Method 82608 <br /> 0854 Page l of 1 <br />