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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> m c C a m p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: Safety Kleen WorkOrder: 2106F08 <br /> Date Prepared: 06/26/2021 BatchID: 224387 <br /> Date Analyzed: 06/28/2021 Extraction Method: CA Title 22 <br /> Instrument: ICP-MS2 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/L <br /> Project: OR14384;O'Reilly42567 BRAKE LATHE Sample ID: MB/LCS/LCSD-224387 <br /> SHAVINGS <br /> QC Summary Report for Metals (STLC) <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Antimony 10.8 10.7 10 108 107 75-125 0.970 20 <br /> Arsenic 10.2 10.2 10 102 102 75-125 0.0982 20 <br /> Barium 103 102 100 103 102 75-125 1.42 20 <br /> Beryllium 9.63 9.44 10 96 94 75-125 1.99 20 <br /> Cadmium 10.2 10.1 10 101 101 75-125 0.573 20 <br /> Chromium 10.0 10.0 10 100 100 75-125 0.140 20 <br /> Cobalt 9.68 9.54 10 97 95 75-125 1.39 20 <br /> Copper 9.66 9.64 10 97 96 75-125 0.166 20 <br /> Lead 10.0 9.91 10 101 99 75-125 1.38 20 <br /> Mercury 0.239 0.243 0.25 96 97 75-125 1.74 20 <br /> Molybdenum 10.2 9.98 10 102 100 75-125 1.94 20 <br /> Nickel 9.71 9.65 10 97 97 75-125 0.558 20 <br /> Selenium 10.3 10.1 10 103 101 75-125 1.57 20 <br /> Silver 9.74 9.67 10 97 97 75-125 0.721 20 <br /> Thallium 9.60 9.48 10 96 95 75-125 1.26 20 <br /> Vanadium 10.3 10.3 10 103 103 75-125 0.0194 20 <br /> Zinc 98.5 97.9 100 98 98 75-125 0.570 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 8 of 15 <br />