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iPeA-1 Tab <br /> Soil Vapor Extraction System Performance Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Boulevard,Tracy,California <br /> TPH as Gasollne 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 01/15/02 21,560 a 00 00 3,617 00 000 106 <br /> INFL 02/08/02 21,560 e - - -- 00 00 3,617 00 000 106 <br /> INFL 03/11/02 21,560 a 00 00 3,617 -- 00 0 00 106 <br /> INFL 04/12/02 21,560 e - -- 00 00 3,617 -- 00 000 106 <br /> INFL 05/03/02 21,560 a -- -- -- -- 00 00 3,617 00 000 106 <br /> REPORTING PERIOD SECOND QUARTER 2002 <br /> TOTAL POUNDS REMOVED 3,6166 106 <br /> TOTAL GALLONS REMOVED 5929 14 <br /> PERIOD POUNDS REMOVED System Off System Off <br /> PERIOD GALLONS REMOVED System Off System Off <br /> PERIOD AVG FLOW RATE System Off <br /> PERIOD PERCENT OPERATIONAL(d) System Off <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 718198 <br /> ND =Non-detectable above detection limit c System is being pulsed(one month on,one month off) <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 AS system will remain on <br /> FID =Flame ionization detector Density of benzene=7 34 pounds per gallon <br /> "HZO =inches of water Density of gasoline=6 1 pounds per gallon <br /> K U5 SP ARM02093XTeble 1 2 3 4 5 ids Page 3 of 3 <br />