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N i <br /> GTEL Client ID BLA01CHV08 QUALITY CONTROL RESULTS <br /> ogin Number W5120090 Volatile Organics <br /> o3ect ID (number) 951201 G1 Method EPA 8020 <br /> Project ID (name) CHEVRON/9 1848/1257 YOSEMITE WEST/MANTECA/CA Matrix Aqueous <br /> Matrix Spike(MS) Results <br /> GTEL Sample ID W5120113-13 MS ID MS12011313 <br /> .Analysis Date 13-DEC-95 13-DEC-95 <br /> Units ug/L Sample Spike MS MS Acceptability Limits <br /> Anal to Conc Added Conc % Rec %Rec <br /> Benzene < 0 5 MUM 20 0 19 4 96 7 67-11.0 <br /> Toluene < 0 5 (0 240) 20 0 18 6 91 8 68-115 <br /> Ethylbenzene < 0 5 (0 120) 20 0 19 1 94 9 65-120 <br /> X lenes (Total) < 0 5 (0 0500) 60 0 54 5 90 8 62-119 <br /> Notes <br /> Values in parentheses in the sample concentration column are used for % recovery calculations <br /> • <br /> GTEL Wichita KS <br /> W5120090 6 <br />