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1534 Willow Pass Road, Pittsburg, CA 94565-1701 <br /> �. McCampbell Analytical , Inc . Toa Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br /> "When Quality Counts" http://www.mccampbell.coin / E-mail: main@mccmnpbell.com <br /> Quality Control Report <br /> Client: Castle Analytical Laboratory WorkOrder: 1805451 <br /> Date Prepared: 6/19/18 BatchlD: 160232 <br /> Date Analyzed: 6/22/18 Extraction Method: CA Title 22 <br /> Instrument: ICP-MS2 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/L <br /> Project: 1805035/180321 Sample ID: MB/LCS460232 <br /> 1806255-OOSAMS/MSD <br /> QC Summary Report for Metals (STLC) <br /> Analyte MB LCS RL SPK MB SS LCS LCS <br /> Result Result Val %REC %REC Limits <br /> Lead ND 11 .2 0. 10 10 - 112 75-125 <br /> Analyte MS MSD SPK SPKRef MS MSD MSIMSD RPD RPD <br /> Result Result Val Val %REC %REC Limits Limit <br /> Lead 43.3 44.7 10 35.90 741F1 88 75-125 3. 14 20 <br /> Analyte DLT DLTRef % D % D <br /> Result Val Limit <br /> Lead 39.0 35.90 8.64 20 <br /> %D Control Limit applied to analytes with concentrations greater than 25 times the reporting limits. <br /> V� <br /> �Z <br /> CA ELAP 1644 • NELAP 4033ORELAP <br /> Page 5 of 9 <br />