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M1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> c C a m p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> t 'When Quality Counts" http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: AdvancedGeo,Inc. WorkOrder: 2503L69 <br /> Date Prepared: 03/31/2025 BatchID: 314316 <br /> Date Analyzed: 03/31/2025 Extraction Method: SW3050B <br /> Instrument: ICP-MS6 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/kg <br /> Project: SUSD-Weber Institute Sample ID: MB/LCS/LCSD-314316 <br /> QC Summary Report for Metals <br /> Analyte MB MDL RL SPK MB IS/SS MB IS/SS <br /> Result Val %REC Limits <br /> Lead ND 0.11 0.50 - - - <br /> Surrogate Recovery <br /> Terbium 530 500 106 70-130 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Lead 50 49 50 100 99 75-125 0.783 20 <br /> Surrogate Recovery <br /> Terbium 530 520 500 106 105 70-130 0.999 20 <br /> (Cont.) <br /> CA ELAP 1644•NELAP 4033ORELAP <br />