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GTEL Client ID BLAO1CHV08 QUALITY CONTROL RESULTS <br /> Login Number W6120142 Volatile Organics <br /> . Method EPA 8024A <br /> Project ID (number) 961204-Z1 <br /> Project ID (name) CHEVRON/9 4275/2905 W BENJAMIN HOLT DR/STOCKTON/CA Matrix Aqueous <br /> Laboratory Control Sample Summary <br /> Spike Check Sample QC Percent Acceptability Limits <br /> Analyte Amount Concentration _ Recovery Recovery <br /> EPA 8020A Units ug/L QC Batch 121096GC17 5 <br /> Benzene 20 0 17 8 89 0 39-150% <br /> Toluene 20 0 19 2 96 0 46-148% <br /> Ethylbenzene 20 0 19 7 98 5 32-160% <br /> Xylenes (Total) 60 0 57 6 96 0 51-145% <br /> Notes <br /> • <br /> . NEI/GTEL Wichita KS <br /> W6120102 5 <br />