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C.11,Awanterra <br /> Environmental <br /> LABORATORY CONTROL SAMPLE REPORT Services <br /> LUFT (cont } <br /> Project 123828 <br /> Category BTXEMTBE-S Aromatic Volatile Organics <br /> Matrix SOLID Date Analyzed 02 JAN 97 <br /> QC Run 02 JAN 97-ADX <br /> Concentration Units ug/kg <br /> Concentration Accuracy(%) <br /> Analyte Spiked Measured LCS Limits <br /> Benzene 5o 0 45 4 91 66-126 <br /> Toluene 50 0 45 9 92 74-125 <br /> Ethylbenzene 50 0 45 7 91 72-129 <br /> Xylenes (total) 150 141 94 76-123 <br /> Category BTXEMTBE-S Aromatic Volatile Organics <br /> Matrix SOLID Date Analyzed 30 DEC 96 <br /> QC Run 30 DEC 96-ADX <br /> Concentration Units ug/kg <br /> Concentration Accuracy(k) <br /> Analyte Spiked Measured LCS Limits <br /> Benzene 50 0 44 5 89 66-126 <br /> Toluene 50 0 44 4 89 74-125 <br /> Ethylbenzene 50 0 44 0 88 72-129 <br /> Xylenes (total) 150 136 91 76-123 <br /> Calculations are performed before rounding to avoid round-off errors in calculated results <br />