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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: 06/25/2021 BatchID: 224294 <br /> Date Analyzed: 06/25/2021 Extraction Method: SW3050B <br /> Instrument: ICP-MS5 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/kg <br /> Project: OR14384;O'Reilly42567 BRAKE LATHE Sample ID: MB/LCS/LCSD-224294 <br /> SHAVINGS <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 51.5 51.9 50 103 104 75-125 0.787 20 <br /> Arsenic 51.4 51.7 50 103 103 75-125 0.543 20 <br /> Barium 494 493 500 99 99 75-125 0.0891 20 <br /> Beryllium 49.3 49.9 50 99 100 75-125 1.19 20 <br /> Cadmium 48.8 49.5 50 98 99 75-125 1.26 20 <br /> Chromium 48.4 49.2 50 97 98 75-125 1.57 20 <br /> Cobalt 50.1 50.5 50 100 101 75-125 0.869 20 <br /> Copper 51.3 51.4 50 103 103 75-125 0.273 20 <br /> Lead 49.2 50.0 50 98 100 75-125 1.66 20 <br /> Mercury 1.23 1.24 1.25 98 99 75-125 0.893 20 <br /> Molybdenum 48.9 48.8 50 98 98 75-125 0.344 20 <br /> Nickel 50.9 51.9 50 102 104 75-125 1.91 20 <br /> Selenium 50.6 50.7 50 101 101 75-125 0.243 20 <br /> Silver 51.1 50.8 50 102 102 75-125 0.573 20 <br /> Thallium 49.4 49.9 50 99 100 75-125 0.937 20 <br /> Vanadium 48.7 49.2 50 97 98 75-125 0.990 20 <br /> Zinc 506 510 500 101 102 75-125 0.778 20 <br /> Surrogate Recovery <br /> Terbium 507 503 500 101 101 70-130 0.775 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 10 of 15 <br />