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MCCC1f . 1534W;vowPass Road.Pin:hms.CA94565-1701 <br /> 71k01J@ll Analytical Inc <br /> Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts I htt Yl/ .mccampbeflxom/&mail:nmin@mmmpbeU.com <br /> Quality Control Report <br /> Client: CH2MHILL WorkOrder: 1712687 <br /> Date Prepared: 12/14/17 BatchID: 150260 <br /> Date Analyzed: 12/15/17- 12/18/17 Extraction Method: SW3050B <br /> Instrument: ICP-MSl,ICP-MS2 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/Kg <br /> Project: 693815.TM.VA.01.00;PG&E 2017 Cntl Valley S- Sample ID: MB/LCS-150260 <br /> 600 MCDnldlslStn 1712683-007AMSIMSD <br /> QC Summary Report for Metals <br /> Analyte MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> Result Result Val Val %REG %REC Limits Limit <br /> Antimony 51.5 50.4 50 ND 102 100 75-125 2.14 20 <br /> Arsenic 57.0 56.4 50 6.0 102 101 75-125 1.11 20 <br /> Barium 648 632 500 120 105 102 75-125 2.49 20 <br /> Beryllium 50.1 49.2 50 0.64 99 97 75-125 1.79 20 <br /> Cadmium 50.0 49.0 50 ND 100 98 75-125 2.08 20 <br /> Chromium 69.1 65.9 50 22 95 88 75-125 4.62 20 <br /> Cobalt 54.8 54.4 50 8.5 93 92 75-125 0.659 20 <br /> Copper 79.7 74.3 50 26 108 97 75-125 6.95 20 <br /> Lead 61.5 59.0 50 10 103 98 75-125 4.15 20 <br /> Mercury 1.27 1.24 1.25 0.056 97 95 75-125 2.31 20 <br /> Molybdenum 48.8 47.6 50 0.52 97 94 75-125 2.59 20 <br /> Nickel 80.4 77.6 50 26 108 103 75-125 3.43 20 <br /> Selenium 49.4 48.2 50 - ND 98 96 75-125 2.40 20 <br /> Silver 51.4 49.0 50 ND 103 98 75-125 4.88 20 <br /> Thallium 49.1 47.4 50 ND 98 95 75-125 3.57 20 <br /> Vanadium 75.8 73.8 50 28 96 92 75-125 2.70 20 <br /> Zinc 581 567 500 70 102 99 75-125 2.35 20 <br /> Surrogate Recovery <br /> Terbium 520 502 500 104 100 70-130 3.43 20 <br /> Analyte DLT DLTRef %D %D <br /> Result Val Limit <br /> Antimony ND<2.5 ND - _ <br /> Arsenic 5.60 6.0 6.67 - <br /> Barium 121 120 0.833 <br /> Beryllium ND<2.5 0.64 - <br /> Cadmium ND<1.2 ND - _ <br /> Chromium 22.2 22 0.909 20 <br /> Cobalt 8.95 8.5 5.29 - <br /> Copper 24.3 26 6.54 20 <br /> Lead 10.1 10 1.00 - <br /> Mercury ND<0.25 0.056 - _ <br /> Molybdenum ND<2.5 0. 1 4 <br /> Nickel 25.8 2 769 20 <br /> Selenium ND<2.5 ND '_ _ <br /> DEC 2 7 2017 <br /> (Cont.) <br /> CA ELAP 1644•NELAP 4033ORELAP ENVIRONMENTAL HEALTH <br /> DEPARTi'v`iENT Page 17 of 26 <br />