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eJ <br /> 5 <br /> SUPERIOR ANALYTICAL LABORATORY SNC. <br /> 1385 FAIRFAX ST., STE D SAN FRANCISCO, CA 94124 PHONE (415) 647.2081 <br /> C E R T I F I C A T E Or A t! A L Y S I S <br /> L,;BC)RATORY NO. : 50990 DATE .REC,'FIVED: 00/2?/89 <br /> CLIENT: Bicsyst :rna t4anagernent Intarn ition l DATE REPORTED: 06/30/39 <br /> CLIEwJT JOB t:O. : 8S-06-012 <br /> :'•.I!. LYSISFOR !✓ENZEHE, TOLUENE, ETHYL BENZENE & XYLENES <br /> by EPA Sw-846 t•ethods 5030 and 8020 <br /> Concentration(ug/L) <br /> LAB Ethyl <br /> nSample Identification Benzene Toluene Benzene Xyler7eS <br /> 1 NW--1 1 . 1 ND<0.3 ND<0.3 ND<0.3 <br /> 2 I11,1_2 2000 250 200 530 <br /> 3 IdW-2 0.4 ND<0.3 ND<0.3 ND<0.3 <br /> ug/L - parts per billion (ppb) <br /> Minimum Detection Limit in 3ug/L <br /> QAQC Summary: <br /> -t,ti i'7r* <br /> Daily Standard run at 20ug/L: RPD = < 15% <br /> tdS/MSD Average Recovery = 104%: Duplicate RPD = <2 % <br /> Ziardrna, Ph.D. <br /> Laboratory Director <br /> OUTSTANDING QUALITYAND SERVICE <br />