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' COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC Report <br /> Client: EMCON Service Request: 5950620 <br /> Protect ARCO Facility No 2168/EMCON Project No 0805-146 04 Date Analyzed: 5/23/95 <br />' Initial Calibration Verification(ICV) Summary <br /> BTEX and TPH as Gasoline <br /> EPA Methods 7030/8020/California DHS LUFT Method <br />' Units ppm <br /> CAS <br />' Percent <br /> Recovery <br /> True Percent Acceptance <br />' Analyte Value Result Recovery Limas <br /> Benzene 25 2 71 108 85-115 <br />' Toluene 25 2 66 106 85-115 <br /> Ethylbenzene 25 2 75 ILO 85-115 <br /> Xylenes, Total 75 8 22 ILO 85-115 <br />' Gasoline 25 247 99 90-110 <br /> Approved By Date <br />' ICV25,U7060194 <br /> 0620 XLS Hsgppm*5126/95 PWNO <br />