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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" hitp://,Aww.mccampbell.com/E-mail:main@mccampbell.eom <br /> Quality Control Report <br /> Client: Environmental Logistics WorkOrder: 1504168 <br /> Date Prepared: 4/3/15 BatchlD: 103197 <br /> Date Analyzed: 4/6/15 Extraction Method: SW3050B <br /> Instrument: ICP-MS2 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/Kg <br /> Project: BNSF Stockton#41731 Sample ID: MBILCS-103197 <br /> 1504150-006AMS/MSD <br /> QC Summary Report for Metals <br /> Analyte MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> Result Result Val Val %REC %REC Limits Limit <br /> Antimony 52.4 50.1 50 ND 104 100 75-125 4.35 20 <br /> Arsenic 53.8 48.8 50 2.461 103 93 75-125 9.87 20 <br /> Barium 551 511 500 40.96 102 94 75-125 7.61 20 <br /> Beryllium 50.9 48.8 50 ND 101 97 75-125 4.17 20 <br /> Cadmium 48.0 45.6 50 ND 96 91 75-125 5.22 20 <br /> Chromium 99.0 85.6 50 44.46 109 82 75-125 14.6 20 <br /> Cobalt 54.9 51.2 50 8.991 92 84 75-125 7.05 20 <br /> Copper 56.9 51.1 50 7.345 99 88 75-125 10.6 20 <br /> Lead 63.4 59.4 50 7.178 112 104 75-125 6.50 20 <br /> Mercury 1.10 1.10 1.25 0.05390 83 83 75-125 0 20 <br /> Molybdenum 52.4 50.4 50 ND 104 100 75-125 3.85 20 <br /> Nickel 80.9 70.3 50 27.85 106 85 75-125 14.0 20 <br /> Selenium 48.0 45.3 50 ND 96 91 75-125 5.80 20 <br /> Silver 52.1 49.4 50 ND 104 98 75-125 5.34 20 <br /> Thallium 51.3 49.1 50 ND 103 98 75-125 4.40 20 <br /> Vanadium 88.4 78.0 50 33.44 110 89 75-125 12.5 20 <br /> Zinc 493 458 500 18.29 95 88 75-125 7.32 20 <br /> Surrogate Recovery <br /> Tb 350 917 499 473 500 100 95 70-130 5.39 20 <br /> CDPH ELAP 1644 NELAP 40330RELAP <br /> QA/QC Officer <br /> n..__ i-r _cam+ <br />