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110 2nd Avenue South, #D7, Pacheco, CA 94553 <br />' McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR METALS <br />' Date: 06/19/95 Matrix: Soil <br /> Extraction: TTLC <br /> Concentration % Recovery <br />' Analyte (mg/kg,mg/L) Amount MS MSD RPD <br /> Sample MS MSD Spiked <br />' Arsenic 0.0 5.7 5.7 5.0 114 114 0.2 <br /> Selenium 0.0 5.1 5.1 5.0 _ 103 101 1.8 <br /> Molybdenum 0.0 5.2 5.1 5.0 104 102 2.1 <br />' <br /> Silver 0.0 0.5 0.5 0.5 94 92 2.2 <br /> Thallium 0.0 4.6 4.6 5 0 92 93 0.4 <br /> Barium 0.0 5.1 5.0 5.0 102 99 3.4 <br /> Nickel 0 0 5.3 5.2 5.0 106 104 1.3 <br /> Chromium 0.0 5.2 5.2 5.0 105 103 1. 5 <br /> Vanadium 0.0 5.1 5.0 5.0 103 100 2 .6 <br /> Beryllium 0 0 5. 1 5.0 5.0 102 99 3.0 <br /> ' Zinc 0.0 5.2 5.1 5 0 104 103 1.7 <br /> Copper 0.0 5.0 5.0 5.0 99 99 0.4 <br /> Antimony 0.0 5.2 5 0 5 0 103 101 2.4 <br /> ' Lead 0.0 5 3 5.1 5.0 105 103 2.3 <br /> Cadmium 0.0 5.2 5.1 5.0 104 102 2.3 <br /> Cobalt 0.0 5.2 5. 1 5.0 104 101 2.7 <br /> Mercury N/A N/A N/A N/A N/A N/A N/A <br /> ' % Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br />