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Tab1 -1 *of 3 <br /> Soil Vapor Extraction System Performance Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Boulevard,Tracy,California <br /> TPH as Gasoline Benzene <br /> FID Influent Influent <br /> Hour Meter Blower Average Concen- Removal Net Removed Concen- Removal Net Removed <br /> Sample Date Reading Vacuum Flow Rate Influent Effluent tration Rate Removed to Date tration Rate Removed to Date <br /> ID Sampled (hours) ("H2O) (scfm) (ppmv) (ppmv) (ppmv) (lbs/day) (pounds) (pounds) (ppmv) (lbs/day) (pounds) (pounds) <br /> scfm =Standard cubic feet per minute ND=Not detected <br /> lbs =Pounds a Prior to April 1998 all data was collected and reproted by Brown and Caldwell <br /> =Not available or not applicable b SVE system left off on 7/8/98 <br /> ND =Non-detectable above detection limit c System is being pulsed(one month on,one month oft) <br /> ppmv =Parts per million by volume d Period percent operational Is calculated for the months the system was scheduled to operate <br /> TPH =Total petroleum hydrocarbons a SVE system to remain off one additonal month AS system will remain on <br /> FID =Flame Ionization detector Density of benzene=7 34 pounds per gallon <br /> "H2O =inches of water Density of gasoline=61 pounds per gallon <br /> I <br /> 077 43210 1900&M Tables/TABLE 1 11112!01 <br />