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Q§Auanterra <br /> Environmental <br /> Services <br /> MATRIX SPIKE/MATRIX SPIKE DUPLICATE QC REPORT <br /> Volatile Organic: by GC <br /> Project: 092398 <br /> Category: 8020-DP-S Aromatic Volatile Organics by Direct Purge <br /> Test: 8020-B1'X-L-S Method: 8020 <br /> Matrix: SOIL <br /> Sample: 092397-0001 <br /> MS Run: 25 MAR 97-11A <br /> Units ug/kg Units Qualifier: Wet wt. <br /> - Concentration --------- <br /> Sample MS MSD Spiked %Recovery Control RPD <br /> Analyte Result Result Result MS/MSD MS MSD Limits %RPD Limit <br /> Benzene ND 18.3 18.7 20.0 91 93 65-135 2.2 20 f <br /> Toluene 1 .31 20.3 20.7 20.0 95 97 65-135 1 .8 20 JI <br /> Ethylbenzene ND 19.2 19.5 20.0 96 98 65-135 1 .6 25 <br /> Xylenes (total ) ND 58.4 58.6 .60.0 97 98 65-135 0.50 25 <br /> J <br /> r <br /> J <br /> J <br /> ND = Not Detected <br /> alculations are performed before rounding to avoid round-off errors in calculated results. <br /> " t <br />