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Pass <br /> McCam bell Analytical, Inc. 15rr Willow ne:(a7ad,pig262/CA 9456)252- <br /> r, h Toll Gree Telephone:(877)2)2-92G21 Fax:(925)2)2-92G9 <br /> "When Qualilr Counts" hitp://www.mcuampbell.com/E-mail:main0mccampbell.com <br /> Quality Control Report <br /> Client: Safety Kieen WorkOrder: 1907933 <br /> Date Prepared: 7124119 BatchID• 182254 <br /> Date Analyzed: 7124119 Extraction Method: E200.8 <br /> Instrument: ICP-MS2 Analytical Method: E200.8 <br /> Matrix: Water Unit: n/L <br /> Project: JB9793; Stockton Sample ID: MB/LCS/LCSD-182254 <br /> QC Report for Metals (>1% Sediment Content) <br /> Analyte LCS LCSD SPK LCS LCSD LCSILCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Antimony 250 250 250 99 100 85-115 0.723 20 <br /> Arsenic 240 230 250 95 93 85-115 1.51 20 <br /> Barium 2400 2400 2500 96 97 85-115 1.16 20 <br /> Beryllium 250 260 250 101 103 85-115 2.18 20 <br /> Cadmium 240 240 250 95 95 85-115 0 20 <br /> Chromium 230 230 250 94 94 85-115 0 20 <br /> Cobalt 220 220 250 89 89 85-115 0 20 <br /> Copper 240 240 250 96 9.8 85-115 1.84 20 <br /> Lead 240 240 250 95 97_ 85-115 2.12 20 <br /> Mercury 5.8 5.8 6.25 92 93 85-115 0.777 20 <br /> Molybdenum 240 230 250 94 94 85-115 0 20 <br /> Nickel 240 250 250 96 99 85-115 3.01 20 <br /> Selenium 240 240 250 95 97 65-115 1.98 20 <br /> Silver 240 240 250 96 97 85-115 0.768 20 <br /> Thalllum 230 230 250 90 92 85-115 2.08 20 <br /> Vanadium 230 240 250 94 94 85-115 0 20 <br /> Zinc 2400 2400 2500 94 96 85-115 1.81 20 <br /> Surrogate Recovery <br /> Terbium 2300 2300 2500 93 93 70-130 0 20 <br /> Page 7 0 1 <br />