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CAMBRIA <br /> Table 2 Groundwater Extraction-Mass Removal Data-Shell-branded Service Station,Incident#98996184,2575 Country Club Blvd,Stockton,California <br /> TPHa Benzene MTBF, <br /> Site Flow Meter Period Flow Cumulative TPHg Period Cumulative Benzene Period Cumulative MTBE Period Cumulative <br /> Visit Reading Volume Rate Volume Cone Removal Removal Cone Removal Removal Conc Removal Removal <br /> (mm/dd/yy) (gal) ( al) ( d) ( al) (ppb) (pounds) ( ounds) (ppb) (pounds) (pounds) (ppb) (pounds) (pounds) <br /> 03/26/99 0 0 0 0 <br /> 07/17/01 622 649 397 63 671 <br /> End groundwater extraction by vacuum truck <br /> I <br /> Start groundwater extraction system <br /> 05/31/01 20 0 0 0 <br /> 05/31/01 220 200 5 200 36 000 0 060 0 060 9 400 0 016 0 016 63,000 0 105 0 105 <br /> 06/20/01 290 70 100 270 3 00(1 0 002 0 062 650 0 000 0 016 2 800 0 002 0 107 <br /> 06/25/01 6 950 6,660 1 332 6 930 28 000 156 162 5,700 0 317 0 333 16 000 0 889 0 996 <br /> Total Gallons Extracted 639,239 Tota:Pounds Removed 399 Total Pounds Removed 63Z Total Pounds Removed 672 <br /> Total Gallons Removed 65-3 Total Gallons Removed 868 Total Gallons Removed XO$ <br /> Abbreviations&Notes <br /> TPHg=Total purgeable hydrocarbons as gasoline <br /> MTBE=Methyl tert butyl ether <br /> lig/L=Micrograms per liter <br /> ppb=Parts per billion equivalent toµg/L <br /> L=Liter gal=gallon g=gram <br /> Penodic batch extraction using a vacuum truck occurred from March 26 1999 through July 17 2001 <br /> Groundwater extraction system started on May 31 2001 <br /> Mass removed based on the formula volume extracted(gal)x Concentration(µglL)x(g/Ogg)x(pound/453 6g)x(3 785 Ugal) <br /> Volume removal data based on the formula density(in gms/cc)x 9 339(ccxlbs/gmsxgals) <br /> TPPH benzene analyzed by EPA Method 8015/8020 <br /> MTBE analyzed by EPA Method 8260 if MTBE analyzed by EPA Method 8020 then italicized <br /> G//Stockton 2575 Country Club/OM1GWE Data Tables GW Mass Removal <br />