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0 • 0 <br /> fable 4 Summary of Soil Vapor Extrad.tion and Z reatment System Data,ARCO Station 434, Lodi, California <br /> I <br /> Start-up date 6/3191 <br /> Sample Avorage flow Bays in Down days Percent Influent concentration ppmv(a) Removal rate,lbs/d.Ay Not removal,lbs& gallons <br /> date Period rate cfm period in period operational 11`11 G D FPH-G B 1 Pll-G 11 <br /> UM4 5/2/94-6/271514 62 56 0 100,70 110 <0016 3 0 143 lbs 0 Itis <br /> 7/6/94 6127194-7/6194 62 9 0 100% 210 <0 016 5 0 44 lbs 0 lbs <br /> 8116194 7/6/94 8/16,94 62 41 3 93% 261 19 6 0 230 lbs 0 lbs <br /> 9/9/94 8116194 9127/94 63 42 1 98% 230 <0 016 5 0 221 lbs 0 lbs <br /> Totals and averages 6127194-9127194 62 92 4 96% 234 <0 016 5 0 495 lbs 0 lbs <br /> for reporting period 80 gals 0 gals <br /> Tolals and averages 6/3/91 912704 95 1212 65 95% 1461 8 56 0 6915 lbs 79 lbs <br /> cinnulative 1115 gals 1I gals <br /> Samplo calculations <br /> Removal rate calculation <br /> lbs/day=("x"µg/1.)*(gram/1,000,000µg) *(lb/453 6 gram)*("y cubic feet/min) *(1440 min/day) * (28 31 Ucubic feel) <br /> where"x" is influent concentration and"y" is average flow rate,cfm <br /> For pounds cumulative removal we used the romoval lb/day result and multiphcd it by the difference in the numbor of days between the current and previous sampling event <br /> Gallons removal calculation(for"I Pll) <br /> gallons removed=lbs*gallon/6 2 lbs(ddaisity for 1 PI I is 6 2, However,for Beneonc its 7 32) <br /> (a)From start-up through June 1992 influent samples wore not taken because there was no sample tap on the tnlet to the catalyt-c oxidizer <br /> Therefore,the influent concentrations(in parts per million by volume)are an estimate <br />