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l 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a m p b e I l Analytic al, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> ,%at "When Quality Countsrr http://www.mccanTbell.com/E-mail:main@mccmVbell.com <br /> Quality Control Report <br /> Client: Fremouw Environmental Services,Inc. WorkOrder: 2001331 <br /> Date Prepared: 1/13/20 BatchID: 192168 <br /> Date Analyzed: 1/14/20 Extraction Method: E200.8 <br /> Instrument: ICP-MS2 Analytical Method: E200.8 <br /> Matrix: Water Unit: gg/L <br /> Project: 87844; SSI Lathrop Sample ID: MB/LCS/LCSD-192168 <br /> 2001331-001CMS/MSD <br /> QC Report for Metals (>1% Sediment Content) <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Antimony 260 260 250 104 103 85-115 0.986 20 <br /> Arsenic 260 260 250 104 103 85-115 0.887 20 <br /> Barium 2700 2700 2500 108 108 85-115 0 20 <br /> Beryllium 260 260 250 106 104 85-115 1.79 20 <br /> Cadmium 260 260 250 106 104 85-115 1.56 20 <br /> Chromium 270 260 250 107 104 85-115 2.53 20 <br /> Cobalt 270 270 250 108 106 85-115 1.79 20 <br /> Copper 260 260 250 105 103 85-115 2.02 20 <br /> Lead 270 260 250 107 105 85-115 1.97 20 <br /> Mercury 6.4 6.3 6.25 103 101 85-115 2.51 20 <br /> Molybdenum 270 260 250 106 105 85-115 0.928 20 <br /> Nickel 260 260 250 106 103 85-115 2.63 20 <br /> Selenium 260 250 250 103 101 85-115 1.57 20 <br /> Silver 260 260 250 104 102 85-115 1.94 20 <br /> Thallium 270 270 250 109 106 85-115 2.07 20 <br /> Vanadium 270 260 250 106 103 85-115 2.84 20 <br /> Zinc 2600 2600 2500 103 102 85-115 1.15 20 <br /> Surrogate Recovery <br /> Terbium 2800 2800 2500 112 111 70-130 0.484 20 <br /> Analyte MS MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> DF Result Result Val Val %REC %REC Limits Limit <br /> Antimony 1 270 290 250 9.875 105 110 85-115 5.24 20 <br /> Arsenic 1 270 280 250 ND 106 111 85-115 4.27 20 <br /> Barium 1 2700 2900 2500 35.20 108 116,F10 85-115 7.11 20 <br /> Beryllium 1 260 280 250 ND 106 112 85-115 5.61 20 <br /> Cadmium 1 260 270 250 ND 105 110 85-115 4.34 20 <br /> Chromium 1 270 280 250 9.090 106 110 85-115 3.74 20 <br /> Cobalt 1 270 290 250 ND 109 115 85-115 5.89 20 <br /> Copper 1 290 310 250 33.53 104 110 85-115 4.95 20 <br /> Lead 1 310 330 250 40.18 106 115 85-115 6.92 20 <br /> Mercury 1 6.5 6.8 6.25 ND 104 108 85-115 4.53 20 <br /> Molybdenum 1 270 290 250 3.516 108 113 85-115 4.90 20 <br /> Nickel 1 260 270 250 3.929 104 108 85-115 3.96 20 <br /> Selenium 1 260 260 250 ND 103 105 85-115 2.17 20 <br /> Silver 1 260 270 250 ND 103 109 85-115 5.86 20 <br /> (Cont.) <br /> Page 8 of 15 <br />