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Ak 7 <br /> FLOW RATES AND ANALYTICAL RESULTS <br /> OF AIR SAMPLE ANALYSES-UNIT 2(SL NO 9230) <br /> ARCO Faculty No 6100 <br /> 25775 South Patterson Pass Road <br /> Tracy,California <br /> Dale Flowiate IuEltlent Sample Analyses(m /m) <br /> (u,lm) Temp (°F) M GRO Be]17ene Toluctic \Vlt,nte NiTB17 <br /> 10/06/04 235 55 21443 120 6100TINF2 4,700 A 110 A 120 A 11 A 71 A <0 50 A <br /> 6100CINF2 1,600 A 41 A 39 A 3 6 A 21 A <0 50 A <br /> 6100EFF210604 57 A <0 50 A <0 50 A <0 50 A <0 50 A <0 50 A <br /> 10/14/04 28266 24669 145 6100INF2101404 2,000[2,5] A 44[2,51 A 48[2,5] A 5 8[2,51 A 30[2,5] A <2 5[2,5] A <br /> 6100EFF2101404 <50[4] A <0 50[4] A <0 5014] A <0 50[4] A <10[4] A <0 50[41 A <br /> 11/04/04 21715 20293 105 6100AINF-110404 3,200 A 110 A 94 A 63 A 34 A <0 50 A <br /> 6100ASYSM-110404 1,000 A 34 A 30 A 23 A 12 A <0 50 A <br /> 6100AEFF-110404 160 A 43 A <0 50 A <0 12 A <0 12 A <0 14 A <br /> 11/11/04 12366 11219 122 6100CINF2111104 2,200 38 33 <5 0 95 <5 0 <br /> 6100EFF2111104 <50 <0 50 <0 50 <0 50 <0 50 <0 50 <br /> O=Ciasoline Organics a Ran Or <br /> 8 � (C4-C12 <br /> ) <br /> MTBE=Methyl tertiary butyl ether <br /> C=inches of water column <br /> Mg/m,=milligrams per cubic meter <br /> Temp =Temperaturem 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* {(406 8"WC-"WCY406 8"WC) A=Data accepted without qualification <br /> Temperature Corrected influent flow rate Pressure corrected flow rate •{(460 R+68deg Fy(deg F+460 R)) J=Data accepted with qualification <br /> *=Average vacuum R=Data rejected <br /> 1 Field data sheets record flow tate(inches of water column,units)into the SVP,system using a differential pressure guage and pitot tube <br /> These readings were converted to flowrate(acfm,units)in 2-inch diameter pipe <br /> 11 Primary and confr3nation results vaned by greater than 40%Relative Percent Dtfference(RPD) <br /> 21 Reporting limits were raised due to high level of analyte present in the sample <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 /> {4]Extracted out of holding time <br /> [5]The elevated reporting limits were the result of dilations performed by the laboratory in order to quantitate a target analyte <br /> I <br /> ARCO 6100 O&M Page 2 of 2 STRATUS <br />