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McCAMPBELL ANALYTICAL INC. F110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> Tele:510-798-1620 Fa:510-798-1622 <br /> QC REPORT FOR METALS <br /> Date: 03/05/98-03/06/98 Matrix: SOIL <br /> Extraction: TTLC <br /> Concentration % Recovery <br /> Analyte (mg/kg,mg/L) Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> Arsenic 0.0 4.4 4.5 5.0 89 90 0.9 <br /> Selenium 0.0 4.2 4.2 5.0 84 85 0.9 <br /> Molybdenum 0 .0 4.5 4.5 5.0 90 91 0.3 <br /> Silver 0.0 0.5 0.5 0.5 95 95 0.1 <br /> Thallium 0.0 4.8 4 .7 5.0 I 95 94 1.2 <br /> Barium I 0 .0 4.5 4.4 I 5.0 89 89 0 .6 <br /> Nickel 0.0 4.6 4.5 5.0 92 89 3 .2 <br /> Chromium 0.0 4.3 4.4 5.0 86 87 1.5 <br /> Vanadium 0.0 4.7 4.7 5.0 93 93 0.2 <br /> Beryllium 0.0 5.0 5.0 5.0 100 100 0.2 <br /> Zinc 0.0 4.9 5.0 5.0 98 99 1.0 <br /> Copper 0.0 4.5 4.4 5.0 90 89 0.9 <br /> (Antimony I 0.0 4.5 4.5 5.0 I 89 90 0.7 <br /> Lead 0.0 4 .5 4.6 5.0 I 90 91 1.7 <br /> Cadmium I 0 .0 4.8 4.9 5.0 I 97 98 1.2 <br /> Cobalt 1 0.0 4.6 4.6 5.0 91 92 1.0 <br /> Mercury 1 0.000 0.220 0.230 1 0.25 I 88 92 4.4 <br /> Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />