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Table 7 <br /> Mass Calculation - Total Petroleum Hydrocarbons-Gasoline In Groundwater <br /> The Earthgrains Company - 2651 S Airport, Stockton <br /> (Refer To Figure 4 TPH-G in Groundwater, November 2002) <br /> TPH Mass=Area x porosity x g w thickness x 7 5 gallc f x 3 785 Vgal x avg TPH cont x 1 E-9 kg/ug <br /> Parameter 0 to 1,000 Contour Greater than 1,000 Contour <br /> ' Area (sq ft) 32,418 2,645 <br /> Porosity 035 035 <br /> Groundwater Thickness (ft) 50 50 <br /> Gallc f Conversion 75 75 <br /> VGal Conversion 3 785 3 785 <br /> Avg TPM Conc 500 4,700 <br /> Mass Conversion 0000000001 0000000001 <br /> TPH Mass 8 0523 I � 6 1757 <br /> Total TPH-G Mass(Kilograms) 14 2281 ,/ <br /> Q� <br /> 1 <br />