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*E6 <br /> FLOW RATES AND ANALYTICAL RESULTS <br /> OF AIR SAMPLE ANALYSES-UNIT I (SL NO 9321) <br /> ARCO Faculty No 6100 <br /> 25775 South Patterson Pass Road <br /> "Tracy,California <br /> Date Flowrate Influent Vacuum* Sample Anal lyses(Mm3J <br /> scfmV acfm Tem °F "WC ID GRO Benzene Toluene Ethvlbenzene Xvlenes MTBE <br /> I <br /> RO=Gasoline Range Organics(C4 C 12) <br /> BE=Methvl tertiary butyl ether <br /> C=inches of water column <br /> mg/m =milligrams per cubic meter <br /> emp =Temperature in degree Fahrenheit <br /> Standard 110w rate(scfm)measured using standard calibrated devices is converted to actual flow rate(acfm)using the follo%ing formulas QA/QC Review <br /> Pressure corrected influent flow rate = Total influent air flow rate scfm*((406 8 WC- WCV406 8 WC] A=Data accepted without qualification <br /> Temperature Corrected influent flow rate = Pressure corrected flow rate * ((460 R+68deg F)/(deg F+460 R)) J—Data accepted with qualification <br /> Irif Total=Total flow from field R=Data rejected <br /> Inf Cat=Total field flow+Dilution Air <br /> *=Average vacuum <br /> Field data sheets record flow rate(taches of water column units)into the SVE s stem using a differential pressure guage and pitot tube <br /> These readings here converted to flowmte(acfm units)in 2-inch diameter pipe <br /> j l]Primary and confirmation results%cried by greater than 40%Relatne Percent Difference(RPD) <br /> j21 Reporting limits«ere raised due to high level of analyte present in the sample <br /> )3]Estimated Nalue less than reporting limits but over the method detection limits <br /> j4]The reported results may be biased low since the analyses for these analytes were performed beyond the U S EPA recommended holding time <br /> ARCO_6100_0 8 M Page 2 of 2 STKATU5 <br />