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fAePwanterra <br /> Environmental <br /> LABORATORY CONTROL SAMPLE REPORT Services <br /> LUF'T . <br /> Pro3ect_ 123826 <br /> Category TVPH-PT-S Total Petroleum Hydrocarbons by Purge & Trap <br /> Matrix SOLID bate Analyzed 06 JAN 97 <br /> QC Run 06 JAN 97-ADX <br /> Concentration Units mg/kg <br /> Concentration Accuracy(W) <br /> Analyte Spiked Measured LCS Limits <br /> Gasoline 5 00 4 79 96 50-140 <br /> Concentration Accuracy(%) <br /> surrogates l Spiked Measured LCS Limits <br /> a,a,a-Trifluorotoluene 0 200 0 189 95 50-150 <br /> Category TVPH-PT-S Total Petroleum Hydrocarbons by Purge & Trap <br /> Matrix- SOLID Date Analyzed 02 JAN 97 <br /> QC Run 02 JAN 97-ADX <br /> Concentration Units mg/kg <br /> Concentration Accuracy(;) <br /> Analyte Spiked Measured LCS Limits <br /> Gasoline 5 00 4 61 92 50-140 <br /> _ - Concentration_ AccuracyO <br /> Surrogates Spiked Measured LCS Limits <br /> a,a,a-Trifluorotoluene 0 200 0 184 92 50-150 <br /> Category- TVPH-PT-S Total Petroleum Hydrocarbons by Purge & Trap <br /> Matrix- SOLID Date Analyzed 30 DEC 96 <br /> ---- T QC-Run 3 0_DEC-9 6=ADX�� T- - <br /> Concentration Units mg/kg <br /> - - - ----- - -- --- -- -------------- ------ Concentration-- -- —--Accuracy(%-) - - -- - -- <br /> Analyte Spiked Measured LCS Limits <br /> Gasoline 5 00 4 67 93 50-140 <br /> Concentration Accuracy(%) <br /> Surrogates Spiked Measured LCS Limits <br /> a,a,a-Trifluorotoluene 0 200 0 177 89 50-150 <br /> Category_ BTXEMTBE-S Aromatic- Volatile_ Organics <br /> Matrix SOLID bate. Analyzed 06 JAN 97 <br /> QC Run 06 JAN 97-ADX <br /> Concentration Units ug/kg <br /> Concentration AccuracyO <br /> Analyte Spiked Measured LCS Limits <br /> Benzene 50 0 43 8 88 66-126 <br /> Toluene 50 0 44 3 89 74-125 <br /> Ethylbenzene 50 0 44 1 68 72-129 <br /> Xylenes (total) 150 137 92 76-123 l <br /> Calculations are performed before rounding to avoid round-off errors in calculated result <br />