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CANYanterra <br /> Environmental <br /> Sen ices <br /> &DUPLICATE CONTROL SAMPLE REPORT <br /> LUFT <br /> Project 123828 <br /> Category TVPH-P T-M Total Petroleum Hydrocarbons, Volatile (Solid) Mid-Level <br /> Matrix_ SOLID <br /> QC Lot- 03 JAN 97-AB Date Analyzed 03 JAN 97 <br /> Concentration Units mg/kg <br /> Concentration Accuracy Precision <br /> Analyte Spiked Measured Average W (RPD) <br /> DCS1 Qual DCS2 Qual AVG DCS Limits DCS Limit <br /> Gasoline 50 0 48 1 5o 6 49 4 99 40-150 5 1 40 <br /> Concentration Accuracy <br /> Surrogate Spiked Measured Average (%) <br /> DCS1 Qual DCS2 Qual DCS Limits <br /> a,a,a-Trifluorotoluene 2 00 1 89 1 95 96 50-150 <br /> Category BTXEMTBE--M Aromatic Volatile Organics <br /> Matrix_ SOLID <br /> QC Lot: 03 JAN 97-AB Date Analyzed 03 JAN 97 <br /> Concentration Units ug/kg <br /> Concentration Accuracy Precision <br /> Analyte Spiked Measured Average M (RPD) <br /> DCS1 Qual DCS2 Qual AVG DCS Limits DCS Limit <br /> Benzene 500 458 461 460 92 50-140 0 57 40 <br /> Toluene 500 467 473 470 94 50-140 1 3 40 <br /> Ethylbenzene 5o0 470 465 467 93 50-140 1 2 40 <br /> Xylenes (total) 1500 1430 1410 1420 95 50-140 1 6 40 <br /> Calculations are performed before rounding to avoid round-off errors in calculated results <br />