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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.mccampbeR.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: AdvancedGeo,Inc. WorkOrder: 2309886 <br /> Date Prepared: 09/14/2023 BatchID: 278057 <br /> Date Analyzed: 09/15/2023 Extraction Method: SW3050B <br /> Instrument: ICP-MS4 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/kg <br /> Project: San Joaquin County Corp Yard Sample ID: MB/LCS/LCSD-278057 <br /> QC Summary Report for Metals <br /> Analyte MB MDL RL SPK MB SS MB SS <br /> Result Val %REC Limits <br /> Lead ND 0.065 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 49 51 50 98 101 75-125 2.70 20 <br /> Surrogate Recovery <br /> Terbium 530 550 500 107 110 70-130 2.51 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 23 of 28 <br />