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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> /-\, M c Campbell Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> /- <br /> "When Quality Counts" http://www.mccampbeH.com/E-mail:main@inccwnpbefl.com <br /> Quality Control Report <br /> Client: Safety Kleen WorkOrder: 1808870 <br /> Date Prepared: 8/20/18 BatchID: 163529 <br /> Date Analyzed: 8/20/18 Extraction Method: SW3050B <br /> Instrument: ICP-MS2 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/Kg <br /> Project: 81618SI Sample ID: MB/LCS/LCSD-163529 <br /> QC Summary Report for Metals <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Antimony 45.2 46.7 50 90 93 75-125 3.39 20 <br /> Arsenic 47.4 49.1 50 95 98 75-125 3.46 20 <br /> Barium 497 511 500 99 102 75-125 2.72 20 <br /> Beryllium 49.7 51.7 50 99 103 75-125 3.99 20 <br /> Cadmium 46.8 48.3 50 94 97 75-125 3.28 20 <br /> Chromium 46.9 48.6 50 94 97 75-125 3.50 20 <br /> Cobalt 48.9 52.9 50 98 106 75-125 7.80 20 <br /> Copper 47.7 49.3 50 95 99 75-125 3.22 20 <br /> Lead 47.8 50.1 50 96 100 75-125 4.53 20 <br /> Mercury 1.20 1.22 1.25 96 98 75-125 1.40 20 <br /> Molybdenum 45.5 47.4 50 91 95 75-125 4.09 20 <br /> Nickel 48.8 49.9 50 98 100 75-125 2.15 20 <br /> Selenium 48.4 49.4 50 97 99 75-125 2.11 20 <br /> Silver 46.0 47.6 50 92 95 75-125 3.51 20 <br /> Thallium 46.4 48.6 50 93 97 75-125 4.59 20 <br /> Vanadium 46.7 48.2 50 93 96 75-125 3.33 20 <br /> Zinc 485 498 500 97 100 75-125 2.56 20 <br /> Surrogate Recovery <br /> Terbium 490 506 500 98 101 70-130 3.17 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 5 of 9 <br />