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TAO 0 <br /> FLOW RATES AND ANALYTICAL RESULTS <br /> OF AIR SAMPLE ANALYSES-UNIT 2(SL NO 9230) <br /> ARCO Facility No 6100 <br /> 25775 South Patterson Pass Road <br /> Tracy,California <br /> Date Flowrate Influent Vacuum` Sample Analyses m n <br /> scfm' acfm Tem WC ID GRO Benzene Toluene Eth lbenzene Xylenes MTBE <br /> GRO=Gasoline Range Organics(C4 C 12) <br /> TBE=Methyl tertiary butyl ether <br /> WC-mches of water column <br /> tnglui=milligrams per cubic meter <br /> Temp =Temperature in degree Fahrenheit <br /> Standard flow rate(scfm)measured using standard calibrated devices is converted to actual flow rate(acfm)using the following formulas QA/QC Review <br /> Pressure corrected influent flow rate = Total influent air flow rate scfm*1(406 8"WC "WC)/406 8"WC) A=Data accepted without qualification <br /> Temperature Corrected influent flow rate = Pressure corrected flow rate *f(460 R+68deg F)1(deg F+460 R)} J=Data accepted with qualification <br /> *=Average vacuum R=Data rejected <br /> i Field data sheets record flow rate(inches of water column units)into the SVE system using a differential pressure guagc and pttot tube <br /> These readings were converted to flowrate(acfm,units)in 2 inch diameter pipe <br /> [E]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 sampl <br /> [3]The reported result for GRO is due to chromatographic peaks present in the gasoline quantitation range however,the peaks present do not resemble the pattern for gasoline <br /> ARCO_610t1_O&M Page 2 of 2 STRATUS <br />