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• f <br /> NEI/GTEL Client ID BLAOICHV08 QUALITY CONTROL RESULTS <br /> Login Number W7050168 Volatile Organics <br /> *Project <br /> roaect ID (number) 970506-51 Method EPA 8020A <br /> ID (name) CHEVRON/9 4275/2905 W BENJAMIN HOLT DR/STOCKTON/CA Matrix Ague <br /> Matrix Spike(MS) Results <br /> GTEL Sample ID W7050141-02 MS ID MS05014102 <br /> Analysis Date 15-MAY-97 15-MAY-97 <br /> Units ug/L Sample Spike MS MS Acceptability Limits <br /> Analyte Conc Added Conc % Rec %Rec <br /> Benzene < 0 5 (0 000) 20 0 18 5 92 5 67-110 <br /> Toluene < 0 5 (0 000) 20 0 18 3 91 5 68-115 <br /> Ethylbenzene < 0 5 (0 000) 20 0 17 8 89 0 65-120 <br /> Xylenes (Total) < 0 5 (0 000) 60 0 54 2 90 3 62-119 <br /> GTEL Sample ID W7050164-01 MS ID MS05016401 <br /> Analysis Date 15-MAY-97 15-MAY-97 <br /> Units ug/L Sample Spike MS MS Acceptability Limits <br /> Anal to Conc Added Conc % Rec %Rec <br /> Benzene < 0 5 (0 000) 20 0 19 7 98 5 67-110 <br /> Toluene < 0 5 (0 000) 20 0 19 3 96 5 68-115 <br /> Ethylbenzene < 0 5 (D 000) 20 0 18 8 94 0 65-120 <br /> Xylenes (Total) < 0 5 (0 000) 60 0 54 9 91 5 62-119 <br /> Notes <br /> 40 alues in parentheses in the sample concentration column are used for X recovery calculations <br /> I <br /> EI/GTEL Wichita KS <br /> W7050168 7 <br />