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1 <br /> 110 2nd Avenue South, #D7,Pacheco,CA 94553 . <br /> 1 McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> i <br /> 1 <br /> 1 QC REPORT FOR METALS <br /> 1 Date: 05/23/95 Matrix: Soil <br />' Extraction: TTLC <br /> Concentration % Recovery <br />' Analyte (mg/kg,mg/L) Amount RPD <br /> Sample MS MSB Spiked MS MSD <br />' Arsenic 0.0 5.6 5.5 5.0 112 109 2.3 <br /> Selenium 0.0 5.1 4.9 5.0 102 99 3.2 <br />' Molybdenum 0 0 5.1 5.0 5.0 103 100 3.0 <br /> Silver 0.0 0.6 0.6 0.5 116 114 1.7 <br /> Thallium 0.0 4.9 4.8 5.0 98 96 2.1 <br /> Barium 0.0 4.9 4.8 5.0 98 96 2.5 <br /> t • Nickel 0.0 5.3 5.2 5 0 106 104 1.7 <br /> Chromium 0.0 5.1 5.1 5.0 103 101 1.8 <br /> Vanadium 0.0 5.1 4.9 5 0 101 99 2.2 <br />' Beryllium 0 0 4.7 4.6 5 0 94 92 1.9 <br /> Zinc 0.0 5.2 5.1 5.0 104 102 1.9 <br /> Copper 0.0 5.0 4.9 5.0 99 98 1.2 <br /> Antimony 0.0 5.4 5.2 5.0 107 104 2.6 <br /> Lead 0.0 5.2 5.1 5.0 105 102 2.3 <br /> Cadmium 0.0 5.2 5.1 5.0 104 102 1.9 <br /> Cobalt 0.0 5.0 4.9 5.0 101 99 2.0 <br />' Mercury 0.000 0.232 0.222 0.25 93 89 4.4 <br />' Rec. = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSA) / (MS + MSD) x 2 x 100 <br /> • <br />