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TAJ96 <br /> FLOW RATES AND ANALYTICAL RESULTS <br /> OF AIR SAMPLE ANALYSES-UNIT 1 (SL NO 9321) <br /> ARCO Facility No 6100 <br /> 25775 South Patterson Pass Road <br /> Tracy,California <br /> Date Flowrate Influent Vacuum* SamMle Analyses m m <br /> scfm t (acfmj ITenip °F "WC ]D GRO Benzene I Toluene I Eth lbenzene X lenes MTBE <br /> RO—Gasoline Range Organics(C4-4212) <br /> MTBE=Methyl tertruy butyl ether <br /> C=inches of water column <br /> mg/m3=milligrams per cubic meter <br /> Temp =Temperature in degree Fahreahert <br /> Standard flow rate(scfm)measured using standard calibrated devices is converted to actual flow rate(acfm)using the following fonnulds QAIQC Rcview <br /> Pressure corrected influent flow rate = Total mflanit air flow rate scfm* ((406 8"WC "WCY406 8"WC} A—Data accepted without qualification <br /> emperawe Corrected influent flow rate = Pressure corrected flow rate " ((460 R+68deg F)!(deg F+460 R)} 7=Data accepted with qualification <br /> f Total—Total flow from field R=Data rejected <br /> f Cat=Total field flow+Dilution Air <br /> #—Average vacuum <br /> i Field data sheets record flow tate(inches of water column,units)into the SVE system using a dill'erential pressure guage and pmtot tube <br /> These readings were converted to flowrate(acfin,units)in 2-mch diameter pipe <br /> 1]Primary and confirmation results vaned by greater than 40%Relative Percent Difference(RPD) <br /> 2]Reporting limits were raised due to high level of analyte present in the sample <br /> [3]Estimated value,less than reportmg limits,but over the method detection limits <br /> [4]The reported resuhs maybe biased low smce the analyses for these analyles were performed beyond the US EPA recommended holding time <br /> ARCO 6100 0&M Page 2 of 2 STRATUS <br />