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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a mp b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" http://www.mccampbefl.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: Ponder Environmental Services WorkOrder: 2009E33 <br /> Date Prepared: 09/29/2020 BatchID: 206438 <br /> Date Analyzed: 09/29/2020 Extraction Method: SW5030B <br /> Instrument: GC38 Analytical Method: SW8260B <br /> Matrix: Water Unit: µg/L <br /> Project: 20-16350;Flying J Ripon Sample ID: MB/LCS/LCSD-206438 <br /> QC Summary Report for SW8260B <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> Surrogate Recovery <br /> Dibromofluoromethane 25.5 25.3 25 102 101 76-110 0.541 20 <br /> Toluene-d8 26.0 25.6 25 104 103 84-111 1.39 20 <br /> 4-BFB 2.48 2.42 2.5 99 97 64-121 2.46 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 15 of 23 <br />