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Tab *of 9 <br /> Sod 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 /> INFL 12/31/1997 7,847 a 40 65 180 95 180 47 362 2,748 -- — — <br /> INFL 5/28/1998 7,847 60 40 4,000 0 390 62 00 2,748 180 02 00 0 <br /> INFL 6/11/1998 8,143 50 105 650 30 650 273 2068 2,955 — 06 50 5 <br /> INFL 7/811998 8,444 b -- -- — — 00 00 2,955 - 00 00 so <br /> REPORTING PERIOD.6171198 to 78198 <br /> TOTAL POUNDS REMOVED: 2,966.2 so <br /> TOTAL GALLONS REMOVED, 4846 07 <br /> PERIOD POUNDS REMOVED, 0,0 0.0 <br /> PERIOD GALLONS REMOVED. 0.0 0.0 <br /> PERIOD AVG FLOW RATE.- <br /> PERIOD <br /> LATE:PERIOD PERCENT OPERATIONAL, <br /> scfm =Standard cubic feet per minute NS=Not sampled <br /> lbs =Pounds a Pnor to April 1998 all data was collected and reproted by Brown and Caldwell <br /> =Not available or not applicable b SVE system shut off on 718198 <br /> ND =Non-detectable above detection limit <br /> ppmv =Parts per million by volume <br /> TPH =Total petroleum hydrocarbons Density of benzene=7 34 pounds per gallon <br /> Density of gasoline=61 pounds per gallon <br /> 077 41728 0053Q98 O&M Tables <br />