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-1701 <br /> 15Willow Pass Road,Pittsburg,CA McCampbeIl AnalytcaI, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-92 <br /> 69 <br /> "When Quality Counts" http://www.mccampbeR.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: Ponder Environmental Services WorkOrder: 20091333 <br /> Date Prepared: 09/29/2020 BatchID: 206419 <br /> Date Analyzed: 09/30/2020 Extraction Method: E200.8 <br /> Instrument: ICP-MS4 Analytical Method: E200.8 <br /> Matrix: Water Unit: µg/L <br /> Project: 20-16350;Flying J Ripon Sample ID: MB/LCS/LCSD-206419 <br /> QC Report for Metals (>l% Sediment Content) <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Antimony 264 253 250 106 101 85-115 4.06 20 <br /> Arsenic 276 274 250 110 110 85-115 0.816 20 <br /> Barium 2750 2680 2500 110 107 85-115 2.46 20 <br /> Beryllium 268 255 250 107 102 85-115 5.01 20 <br /> Cadmium 267 270 250 107 108 85-115 1.18 20 <br /> Chromium 276 271 250 110 108 85-115 1.70 20 <br /> Cobalt 278 264 250 111 106 85-115 5.06 20 <br /> Copper 274 275 250 109 110 85-115 0.643 20 <br /> Lead 271 265 250 109 106 85-115 2.22 20 <br /> Mercury 6.38 6.16 6.25 102 99 85-115 3.51 20 <br /> Molybdenum 270 256 250 108 103 85-115 4.97 20 <br /> Nickel 275 272 250 110 109 85-115 0.903 20 <br /> Selenium 264 267 250 106 107 85-115 1.19 20 <br /> Silver 271 259 250 108 103 85-115 4.56 20 <br /> Thallium 282 267 250 113 107 85-115 5.24 20 <br /> Vanadium 276 272 250 110 109 85-115 1.27 20 <br /> Zinc 2680 2670 2500 107 107 85-115 0.123 20 <br /> Surrogate Recovery <br /> Terbium 2760 2640 2500 110 105 70-130 4.56 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 17 of 23 <br />