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Qff,'-'ruanterra <br /> Environmental <br /> services `1 <br /> MATRIX SPIKE/MATRIX DUPLICATE QC REPORT J <br /> Metals Analysis and Preparation <br /> Project: 092398 <br /> I <br /> Category: HG-CVAA-S Mercury by CVAA J <br /> Test: HG-CVAA-CAMT-LO-S Method: 7471 <br /> Sample: 092425-0003 t <br /> Matrix: SOIL <br /> Units : mg/kg Units Qualifier: Wet wt. <br /> QC Lot: 31 MAR 97-TX MS Run: 31 MAR 97-T <br /> ------------Concentration------------ � <br /> Sample MS Duplicate Spiked %Rec %RPD Control RPD <br /> Analyte Result Result Result MS MS SA-DU Limits Limit <br /> Mercury ND 0.269 ND 0.250 108 NC 75-125 35 <br /> J <br /> Category: HG-CVAA-A Mercury by CVAA J <br /> Test: HG-CVAA-CAMT-AD Method: 7470 <br /> Sample: 092426-0004 <br /> Unitsx: mg/L -AD Units Qualifier: Wet Weight <br /> QC Lot: 31 MAR 97-UX MS Run: 31 MAR 97-U <br /> ------------Concentration-----=------ <br /> Sample MS Duplicate Spiked %Rec %RPD Control RPD <br /> Analyte Result Result Result MS MS SA-DU Limits Limit <br /> Mercury ND 0.990 ND 1.00 99 NC 80-120 35 <br /> J <br /> i <br /> NC = Not Calculated, calculation not applicable. <br /> ND = Not Detected <br /> Calculations are performed before rounding to avoid round-off errors in calculated results. <br />