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r <br /> � N � oRPORaTEo REPORT OFU. . w _ :�A-•�.�`�� <br /> THE ASSURANCE OF QUALITY <br /> r Paul Graff QUALITY CONTROL DATA September 07, 1993 <br /> ge g PACE Project Number: 430826515 <br /> Client Reference. Exxon 7-0137 (EE) <br /> PURGEABLE AROMATIC COMPOUNDS, EPA 8020 <br /> Batch 70 24193 <br /> Samples: 70 0140919 <br /> METHOD BLANK. <br /> Method <br /> Parameter Units MDL Blank <br /> Benzene ug/L 0 5 NO / <br /> Toluene ug/L 0.5 NO / <br /> Ethylbenzene ug/L 0 5 NO <br /> Xylenes, Total ug/L 0 5 ND <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> Benzene ug/L 0 5 40 0 967. 963/. 00/. <br /> Toluene ug/L 0 5 40 0 94% 95% 1% <br /> Ethylbenzene ug/L 0 5 40 0 97% 99% 2% <br /> lenes, Total ug/L 0 5 80 0 139% 141% 1% <br /> 0 — <br /> 11 Digital Drive An Equal Oppartunoty Employer <br /> Novato CA 94949 <br /> TEL 415 883 6100 <br /> FAX 415 883 2673 <br />