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i <br /> CAMBRIA <br /> Table 3. Groundwater Extraction System- Mass Removal Calculations- Shell-branded Service Station - Incident#98995874, 341 East Main Street, <br /> Ripon, California <br /> TPPH Benzene MTBE <br /> TPHg Benzene MTBE <br /> Meter TPHg TPHg Removed Benzene Benzene Removed MTBE MTBE Removed <br /> Date Well Reading Date Conc. Removed To Date Conc. Removed !To Date Conc. Removed To Date <br /> Purged ID (gallons) Sampled (u /L) ( unds) (pounds) (u /L) (pounds) (pounds) (Ppb) (pounds) (pounds) <br /> 11/22/00 EW-1 908,600 11/22/00 < 50 < 0.01879 <2.89 < 2.5 <0.00094 <110.035 132 0.05 18.25 <br /> 12/01/00 EW-1 992,500 12/01/00 < 50 < 0.03503 <2.93 < 2.5 <0.00175 <�0.037 130 0.09 18.35 <br /> 12/08/00 EW-1 1,057,400 12/08/00 < 50 < 0.02710 < 2.96 < 2.5 <0.00135 <10.038 119 0.07 18.41 <br /> 12/13/00 EW-1 1,103,700 12/13/00 < 50 < 0.01933 <2.98 < 2.5 <0.00097 <0.039 118 0.05 18.46 <br /> 12/20/00 EW-1 1,168,900 12/20/00 < 50 < 0.02722 <3.00 < 2.5 <0.00136 <�0.041 113 0.06 18.52 <br /> 12/28/00 EW-1 1,240,300 12/28/00 53 < 0.03160 <3.04 < 1 <0.00060 <.0.041 110 0.07 18.59 <br /> l <br /> Total Gallons Eictracted Total Pounds Removed: <..3.0351 <`0.0413 18.5886 <br /> Total:Gallons Removed:` <.0.4976 <,0.0057 " '' . 2.4982 <br /> ' I <br /> Abbreviations&Notes: <br /> TPBg=Total petroleum hydrocarbons,calculated as gasoline <br /> MTBE=Methyl tert-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(pg/L)x(g/I06ug)x(pound/453.6g)x(3.785 Ugal) <br /> Volume removal data based on the formula:density(in gmslcc)x 9.339(ccxlbs/gmsxgals) <br /> TPHg,benzene analyzed by EPA Method 801518020 <br /> MTBE analyzed by EPA Method 8260 <br /> i <br /> y <br /> I <br /> g:lripoi*ainlgmlGWE Mass Rem Tbl.As Pa f 2 - <br />