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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: GHD Services,Inc. WorkOrder: 1910845 <br /> Date Prepared: 10/17/19 BatchID: 187307 <br /> Date Analyzed: 10/18/19 Extraction Method: SW3050B <br /> Instrument: ICP-MS2 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/Kg <br /> Project: 11202858-07.11;Chevron 372736 UDC Removal Sample ID: MB/LCS/LCSD-187307 <br /> QC Summary Report for Metals <br /> Analyte MB MDL RL SPK MB SS MB SS <br /> Result Val %REC Limits <br /> Lead ND 0.094 0.50 - - - <br /> Surrogate Recovery <br /> Terbium 510 500 102 70-130 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Lead 48 49 50 96 98 75-125 2.08 20 <br /> Surrogate Recovery <br /> Terbium 510 510 500 102 102 70-130 0 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 12 of 17 <br />