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1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br /> McCampbell Analytical , Inc . Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br /> "When Quality Counts" hap://www.mccampbell.com / E-mail: main@mccampbefl.com <br /> Quality Control Report <br /> Client: Castle Analytical Laboratory WorkOrder: 1805451 <br /> Date Prepared: 5/7/18 BatchlD: 157840 <br /> Date Analyzed: 5/8/18 - 5/9/18 Extraction Method: SW3050B <br /> Instrument: ICP-MSI , ICP-MS3 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/Kg <br /> Project: 1805035/180321 Sample ID : MB/LCS-157840 <br /> 1805379-005AMS/MSD <br /> QC Summary Report for Metals <br /> Analyte DLT DLTRef %D %D <br /> Result Val Limit <br /> Silver ND<25 ND<5.0 - - <br /> Thallium ND<25 ND<5.0 - - <br /> Vanadium 55.5 56.99 2.61 20 <br /> Zinc ND<250 109.2 - <br /> a/oD Control Limit applied to analytes with concentrations greater than 25 times the reporting limits. <br /> RFC � 79 <br /> B • <br /> JUN 12018 <br /> ENVIRONMENTAL <br /> T AL H ALTt� <br /> CA ELAP 1644 a NELAP 4033ORELAP <br /> Page 13 of 17 <br />