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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" http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: American Integrated Services WorkOrder: 19071339 <br /> Date Prepared: 7/26/19 BatchID: 182440 <br /> Date Analyzed: 7/26/19 Extraction Method: SW5030B <br /> Instrument: GC38 Analytical Method: SW8260B <br /> Matrix: Water Unit: gg/L <br /> Project: 39150; 14800 W. Schulte Rd. Tracy Sample ID: MB/LCS/LCSD-182440 <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 27 27 25 108 108 76-110 0 20 <br /> Toluene-d8 23 23 25 93 92 84-111 1.27 20 <br /> 4-BFB 2.3 2.2 2.5 91 89 64-121 2.33 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 14 of 22 <br />