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TABLE4 <br /> Page 4 of 4 <br /> GROUNDWATER EXTRACTION-MASS REMOVAL DATA <br /> SHELL STOCKTON TERMINAL <br /> 3515 NAVY DRIVE,STOCKTON,CALIFORNIA <br /> Estimated Cumulative <br /> Baker Tank Cumulative Period System TpH IPH Cumulative Cumulative <br /> enzene <br /> Bettz <br /> Totalizer Totalizer Volume Flow Rate Sample Concentration Removed Removed Concentration Removed Removed Concceenttrration Removed RemovedE MTBE <br /> Date (gal) (Sal) (gal) (gpm) Date <br /> (i+91L) (pounds) (pounds) (Ng/L) (pounds) (pounds) <br /> 10/20/11 154,122 671,766 46 0.0 (RWL) (pounds) (pounds) <br /> 11 02/18/11 10,000 0.004 366.8 1,300 0.000 51.9 14,000 0.005 161.9 <br /> 11/02/11 154,938 672,582 816 0.04 02/18/11 10,000 0.068 366.8 1,300 0.009 51.9 14,000 0.095 162.0 <br /> 11/17/11 154,965 672,609 28 0.00 02/18/11 10,000 0.002 366.8 1,300 0.000 51.9 14,000 0.003 162.0 <br /> 12/13/11 157,813 675,457 2,848 0.08 02/18/11 10,000 0.238 367.1 1,300 0.031 51.9 14,000 0.333 162.4 <br /> 12/28/11 157,813 675,457 0 0.00 02/18/11 10,000 0.000 367.1 1,300 0.000 51.9 14,000 0.000 162.4 <br /> Total Gallons Extracted: 11,575,013 Total Pounds Removed: 367.1 Total Pounds Removed: 51.9 Total Pounds Removed: 162.4 <br /> Total Gallons Removed: 60.3 Total Gallons Removed: 7.07 Total Gallons Removed: 26.3 <br /> Notes: <br /> TPHg=Total petroleum hydrocarbons as gasoline <br /> MTBE=Methyl-tertiary butyl ether <br /> gal=Gallon <br /> gpm=Gallons per minute <br /> µg/l,=Micrograms per liter _ <br /> L=Liter <br /> g=Gram <br /> cc=Cubic centimeter <br /> Extracted groundwater transported to Martinez Refinery Corporation for recycling. <br /> TPH&benzene,and MTBE are analyzed by EPA Method 82606. <br /> Mass removed based on the formula:volume extracted(gal)x Concentrationl(g/L)x(9/149)x(pound/453.68)x(3.785 L/gal <br /> When constituents are not detected,the concentration is assumed to be equal to half the detection limit in subsequent calculations. <br /> Volume removal data based on the formula:mass(pounds)x(density(oc/g)x 453.6(g/pound)x(L/1000 cc)x(gal/3.785 L) <br /> Period operational flow rate based on the formula:(current volume reading-last volume reading(gal))/((current date-last date(days))x(1440(hr/day))) <br /> Density inputs:TPHg=0.73 g/cc,Benzene=0.88 g/cc,TBA=0.78 g/cc,MTBE=0.74 g/cc <br /> New flow meter installed on September 13,2007. Ending totalizer data not collected,therefore flowrate estimated to be 0.28 between August 30,2007 and September 13,2007. <br /> New flow meter installed on June 24,2008. Ending totalizer 13152.3,new totalizer started on 54755. <br /> QiA 29IR9(f 3) <br />