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CAMBRIA <br /> Table 3. Groundwater Extraction System -Mass Removal Calculations - Shell-branded Service Station -Incident#98995874, 341 East Main Street, <br /> Ripon, Californial <br /> !I <br /> TPPII Benzene MTBE <br /> TPHg Benzene MTBE <br /> Meter TPHg TPHg Removed Benzene Benzene Removed MTBE MTBE Removed <br /> Date Well Reading Cone. Removed To Date Conc. Removed To Date Cone. Removed To Date <br /> Pur ed ID (gallons) (u /L,) _1unds) {pounds) I (u /L) 'pounds) (pounds) (ppbl 'pound,) (pounds, <br /> Abbreviations&Notes: <br /> TPHg=Total petroleum hydrocarbons,calculated as gasoline <br /> MTBE=Methyl tent-butyl ether <br /> µg/L=Micrograms per liter <br /> L=Liter <br /> gal=Gallon <br /> g=Gram <br /> Mass removed based on the formula:volume extracted(gal)x Concentration(gg/L)x(g/Wgg)x(pound/453.6g)x(3.785 L/gal) <br /> If concentration is less than the laboratory detection limit,one half of the detection limit concentration is used in the mass removal calculation. <br /> Volume removal data based on the formula:density(in gms/ce)x 9.339(ccxlbs/gmsxgals) <br /> TPHg,benzene analyzed by EPA Method 801518020. Results by 8260 reported in bold,when available. <br /> MTBE analyzed by EPA Method 8260 <br /> I <br /> I <br /> g:lripon*1nlgm\GWE Mass Rem Tbl.xls Paglef 3 <br />