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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" I <br /> http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: Trans Tech Consultants WorkOrder: 2510770 <br /> Date Prepared: 10/10/2025 BatchID: 327560 <br /> Date Analyzed: 10/10/2025 Extraction Method: SW3050 B <br /> Instrument: ICP-MS5 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/kg <br /> Project: 3439.01;LLNL B882-Disp Sample ID: MB/LCS/LCSD-327560 <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 48.3 50.4 50 97 101 75-125 4.25 20 <br /> Arsenic 52.4 54.2 50 105 108 75-125 3.40 20 <br /> Barium 512 533 500 102 107 75-125 4.09 20 <br /> Beryllium 50.2 52.5 50 100 105 75-125 4.52 20 <br /> Cadmium 51.0 52.5 50 102 105 75-125 2.76 20 <br /> Chromium 51.7 51.8 50 103 104 75-125 0.228 20 <br /> Cobalt 52.8 55.1 50 106 110 75-125 4.29 20 <br /> Copper 52.3 53.4 50 105 107 75-125 2.04 20 <br /> Lead 50.2 53.1 50 100 106 75-125 5.65 20 <br /> Mercury 1.32 1.35 1.25 106 108 75-125 2.02 20 <br /> Molybdenum 49.9 52.7 50 100 105 75-125 5.32 20 <br /> Nickel 52.6 53.5 50 105 107 75-125 1.70 20 <br /> Selenium 53.1 53.6 50 106 107 75-125 0.911 20 <br /> Silver 51.2 52.4 50 102 105 75-125 2.30 20 <br /> Thallium 52.2 54.6 50 104 109 75-125 4.55 20 <br /> Vanadium 51.6 52.4 50 103 105 75-125 1.50 20 <br /> Zinc 530 538 500 106 108 75-125 1.41 20 <br /> Surrogate Recovery <br /> Terbium 531 559 500 106 112 70-130 5.13 20 <br /> CA ELAP 1644.ORELAP(NELAP)4033 <br /> Page 9 of 17 <br />