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TABLE 1: QUALITY ASSURANCE DATA MAY 13, 1991 <br /> EPA METHOD 602 - AROMATIC VOLATILE <br /> ORGANICS (AR12) <br /> Chain of. Custody Data Required for ETC Data Management Summary Reports.' <br /> See Below <br /> ETC Batch No. <br /> QC' Blank and Spiked Data QC Matrix Spike QC Duplicate ) <br /> BIank - Concen. X 'Unspiked Concen. X I <br /> Compound' Concen. Added Recov Sample. Added Recov First Second RPD Batch J1 <br /> M9/L mg/L.i mg/h mg/h M9/L M9/D <br /> BenzeneND _ _ A10799 <br /> Ethylbenzene NB .050 101 - - Q <br /> Toluene ND .050 99 - _ _ - - QA10799 <br /> m+ -Xylenes ND .100 101 - - QA10799 <br /> o-Xylene ND .050 103 - - - - - - QA10799 <br /> Matrix spikes and dupiicates are not required for a alytical ba ches <br /> containing only trip blanks/equipment rinsates. CC <br /> i <br /> F <br />