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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: Soil Control Lab WorkOrder: 25061392 <br /> Date Prepared: 06/19/2025 BatchID: 319627 <br /> Date Analyzed: 06/19/2025 Extraction Method: SW3050 B <br /> Instrument: ICP-MS4 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/kg <br /> Project: 5060123-01;Central Valley Compost(WM- Sample ID: MB/LCS/LCSD-319627 <br /> Lathrop)(Altamont) 2506B92-001AMS/MSD <br /> QC Summary Report for Metals <br /> Analyte DLT DLTRef %D %D <br /> Result Val Limit <br /> Lead 37 35 3.39 20 <br /> Mercury ND<2.0 ND - - <br /> Molybdenum ND<20 ND - - <br /> Nickel 25 28 9.76 20 <br /> Selenium ND<20 ND - - <br /> Zinc 230 210 8.01 20 <br /> %D Control Limit applied to analytes with concentrations greater than 25 times the reporting limits. <br /> CA ELAP 1644.ORELAP(NELAP)4033 <br /> Page 7 of 12 <br />