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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: ICES WorkOrder: 241 OL94 <br /> Date Prepared: 10/30/2024 BatchID: 304957 <br /> Date Analyzed: 10/31/2024 Extraction Method: SW3050B <br /> Instrument: ICP-MS5 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/kg <br /> Project: ICES 9315;Kautz Property Sample ID: MB/LCS/LCSD-304957 <br /> 2410L94-002AMS/MSD <br /> QC Summary Report for Metals <br /> Analyte MB MDL RL SPK MB IS/SS MB IS/SS <br /> Result Val %REC Limits <br /> Arsenic ND 0.084 0.50 <br /> Lead ND 0.089 0.50 <br /> Mercury ND 0.039 0.050 - - <br /> Surrogate Recovery <br /> Terbium 550 500 111 70-130 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Arsenic 55 54 50 110 109 75-125 1.46 20 <br /> Lead 51 50 50 102 101 75-125 1.15 20 <br /> Mercury 1.3 1.3 1.25 103 104 75-125 1.01 20 <br /> Surrogate Recovery <br /> Terbium 530 530 500 106 106 70-130 0.496 20 <br /> Analyte MS MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> DF Result Result Val Val %REC %REC Limits Limit <br /> Arsenic 1 59 60 50 1.904 114 116 75-125 1.38 20 <br /> Lead 1 58 59 50 4.667 106 108 75-125 2.15 20 <br /> Mercury 1 1.3 1.4 1.25 ND 106 109 75-125 3.28 20 <br /> Surrogate Recovery <br /> Terbium 1 540 560 500 108 112 70-130 4.03 20 <br /> Analyte DLT DLTRef %D %D <br /> Result Val Limit <br /> Arsenic N D<2.5 1.9 3.36 <br /> Lead 4.5 4.7 3.26 <br /> Mercury ND<0.25 ND - <br /> %D Control Limit applied to analytes with concentrations greater than 25 times the reporting limits. <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 17 of 21 <br />