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GTEL Client ID BLA01CHV08 QUALITY CONTROL RESULTS <br /> Login Number W6050178 Volatile Drgam cs <br /> �o0ect ID (number) 960507 W4 Method EPA $020 <br /> ra ect ID (name) CHEVRON/9 0342/1347 S EL DORADO ST/STOCKTON/CA Matrix A ueous <br /> Continuing Calibration Verification Sample Summary <br /> Spike Check Sample QC Percent Acceptability Limits <br /> Analyte Amount Concentration Recovery Recovery <br /> EPA 8020 Units ug/L QC Batch 051696GC17-3 <br /> Benzene 20 0 20 8 104 77-123% <br /> Toluene 20 0 20 9 105 77 5-122 5% <br /> Ethylbenzene 20 0 20 5 103 63-137% <br /> Xylenes (Total) 60 0 62 6 104 85-115% <br /> Notes <br /> GTEL Wichita KS <br /> W6050178 5 <br />