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TAO 6 0 <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,Callforma <br /> Date Flowrate Influent Vacuum* Sample Analyses m <br /> sc&n t actin Te °F "WC ID GRO Benzene Toluene Eth (benzene Xylmes MTBE <br /> RO=Gasoline Range Organics(C4-C l2) <br /> TBE=Methyl tertiary butyl ether <br /> i <br /> C—inches of water column <br /> m3=mums 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 followmg formulas QA/QC Review <br /> ressure corrected mfh►ent flow rate = Total mfhient arr flow rate scfm•{(406 8"WC-"WCY406 8"WC) A=Data accepted without quahficatmon <br /> Temperature Corrected influent flow rate = Pressure corrected flow rate 4 ((460 R+68degF)!(deg F+460 R)} J=Data accepted with qualification <br /> hifTotal=Total flow from field R=Data rejected <br /> f Cat=Totat field flow+Dilution Air <br /> •=Average vacuum <br /> m Field data sheets record flow rate(inches of water column,units)into the SVG system using a drfferentol pressure guage and pitot tube <br /> These readings were converted to flowrate(acfm,units)in 2-inch diameter pipe <br /> 11 Primary and confnmation results vaned by greater than 40016 Relative Percent Difference(RPD) <br /> 2]Reporting limits were razed due to high level of analyte present in the sample <br /> 3]Estimated value,less than reporting]mors,but over the method detection hinds <br /> 41 The reported results may be biased low since the analyses for these analytes were performed beyond the U S EPA recommended holding time <br /> AnCo_aroa_o&M Page 2 of 2 STRATUS <br />