Laserfiche WebLink
0 0 <br /> Table 4 Summary of Soil Vapor Extraction and Treatment System Data,ARCO Station 434, Lodi,California <br /> Start-up date 6/3/91 <br /> Sample Average flow Days in Down days Percent Influent concentration,ppmv a) Removal rate,lbsiday Net removal,lbs& allons <br /> date Period rate,cfm EEnod in period operational TPH B TPH B TPH-G 13 <br /> Totals and averages <br /> for reporting perwd 9/8/93-1217/93 98 90 7 9295 332 0 12 0 950 lbs 1 lbs <br /> 153 gals 0 gals <br />� W <br /> Totals and averages 6/3/91-12/7/93 102 918 50 9595 1740 9 67 0 48980 lbs 79 lbs <br /> cwnulative 7900 gals 13 gals <br /> Sample Callulatlon% <br /> Removal rate calculation <br /> lbs/day=('x"gg/L)*(gram/1,000,000 R)*(lb/453 6 gram)*("y"cubic feet/mm)*(1440 mm/day)*(28 31 L/cubic feet) <br /> where"x'is influent concentration and"y"is average flow rate,cfm <br /> For pounds cumulative removal we used the removal lb/day result and multiplied it by the difference in the number of days between the current and previous sampling event <br /> Gallons removal calculation(for TPH) <br /> gallons removed=lbs*gallon/6 21bs <br /> (a)From start-up through June 1992 influent samples were not taken because there was no sample tap on the unlet to the catalytic oxidizer <br /> Therefore,the influent concentrations(m parts per million by volume)are an estimate <br />