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41 <br /> COLUMBIA ANALYTICAL SERVICES, INC. <br /> QAIQC Report <br /> Tient ARCO Products Companv Service Request: S9601431 <br /> Protect 548 Stockton./421775-206 002/TO=19350 00 Date Analyzed 9/9/96 <br /> Initial Calibration Verification(ICV) Summary <br /> BTEX `ITBE and TPH as Gasoline <br /> EPA Methods 50.018020/Calnforma DHS LUFT Method <br /> Units ppb <br /> CAS <br /> Percent <br /> Recovery <br /> True Percent Acceptance <br /> Analyte Value Result Recovery Limits <br /> Benzene 25 25 4 102 85-115 <br /> Toluene 25 25 0 100 85-115 <br /> Ethylbenzene 25 248 99 85-115 <br /> Xvlenes Total 75 74 7 t00 85-115 <br /> Gasoline 250 230 92 90-110 <br /> Methvl ter!-But`! Ether 50 47 94 85-115 <br /> 0 <br /> is <br /> K V25AU060194 <br /> Page 11 <br />