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2 <br /> 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M C C a m p b e l( Analytical, InC_ Toll Pree'relephone:(877)252-92621 Pax:(925)252-9269 <br /> "When Quality Counts" httlrlhvww.mccamisbell,com 1 E-mail:main rr mccampbpItcom <br /> Quality Control Report <br /> Client: Castle Analytical Laboratory WorkOrder: 1910E17 <br /> Date Prepared: 11/5/19 BatchID: 188297 <br /> Date Analyzed: 1116/19 Extraction Method: SW3050B <br /> Instrument: ICP-MS2 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/Kg <br /> Project: 1910108/Premier Finishing/Premier Finishing Sample ID: MB/LCS/LCSD-188297 <br /> QC Summary Report for Metals <br /> Analyte LCS LCSD SPK LCS LCSD LCSILCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Antimony 50 48 50 100 97 75-125 2.99 20 <br /> Arsenic 53 52 50 106 104 75-125 2.47 20 <br /> Barium 540 520 500 108 104 75-125 2.94 20 <br /> Beryllium 55 53 50 110 107 75-125 3.50 20 <br /> Cadmium 53 51 50 106 103 75-125 2.92 20 <br /> Chromium 53 52 50 106 103 75-125 3.03 20 <br /> Cobalt 52 50 50 105 100 75-125 4.52 20 <br /> Copper 54 53 50 109 105 75-125 I'll 20 <br /> Lead 53 51 50 105 101 75-125 3.60 20 <br /> Mercury _ 1.3 1.3 1.25 102 100 75-125 1.43 20 <br /> Oolybdenum — 50 48 50 101 96 75-125 4.54 20 l <br /> Nickel 55 53 50 110 106 75-125 3.41 20 <br /> Selenium 53 51 50 107 101 75-125 5.37 20 <br /> Silver 52 50 50 103 100 75-125 3.69 20 <br /> Thallium 55 53 50 109 105 75-125 3.83 20 <br /> Vanadium 53 52 50 106 104 75-125 1.79 20 <br /> Zinc 550 530 500 109 105 75-125 3.50 20 <br /> Surrogate Recovery <br /> Terbium 560 540 500 111 107 70-130 3.43 20 <br /> CA FLAP 1644•NELAP 4033ORELAP <br /> Pana 7 of 11 <br />