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1WbM <br /> Soll Vapor Extract ystem Emission Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Boulevard,Tracy,California <br /> 7PH as Gasoline Benzene <br /> Effluent Effluent <br /> Hour Meter Blower Average Concen- Emission Destruction Concen- Emission Destruction Is System <br /> Sample Date Reading Vacuum Flow Rate tration Rate Efficiency tration Rate Efficiency In Compliance <br /> ID Sampled (hours) ("H2O) (scfm) (ppmv) (lbs/day) (percent) (ppmv) (lbs/day) (percent) with AQMD <br /> ppmv =Parts per million by volume a =Prior to April 1998 data was collected and reported by Brown and Caldwell <br /> lbs =Pounds b =TPH g and benzene concentrations reported as NO are taken as 0 ppmv for calculation purposes <br /> =Not applicable or not analyzed c =system effluent from field FID readings <br /> r'C'H,o <br /> = Total purgeabie hydrocarbons AQMD W Air Quality Management District <br /> =Inches of water <br /> K%WprocessL)5 8P ARC01020931Quartedyll QTR 0354093 0&M Tables1Q03 Page 3 of 3 <br />