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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City, CA 94063 <br /> TOW (415) 364-9600 FAX(415) 364-9233 <br /> ... ...... <br /> ......... ..... ........ .. <br /> ................. <br /> g <br /> .�.Waterwork Client Project ID: 20241-1 Kooyman Trucking <br /> ..41710 Main Street <br /> 4 <br /> .Escalon, CA 95320 <br /> Attention: Robert Juncal QC Sample Group: 911-3618 Reported: Dec 6, 1989 <br /> ................. <br /> M <br /> M., <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Diesel <br /> Method: EPA 8015 <br /> Analyst: E. Hamilton <br /> Reporting Units: mg/L <br /> Date Analyzed: Dec 1, 19s9 <br /> QC Sample#: 911-3618 <br /> Sample Conc.: a <br /> Spike Conc. <br /> Added: 15.0 <br /> Conc. Matrix <br /> Spike: 15.6 <br /> Matrix Spike <br /> % Recovery: 104 <br /> Conc. Matrix <br /> Spike Dup.: 15.2 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 101 <br /> Relative <br /> %Difference: 2.6 <br /> SEQUOIA ANALYTJPAL %Recovery: Conc.of M.S.-Conc.of Sample X 100 <br /> Spike Conc.Added <br /> Relative%Difference: Conc.of M.S.-Conc.of M.S.D. X 100 <br /> Bjorn A 13?kman (Conc.of M.S. + Conc.of M.S.D.)/2 <br /> Project Manager 9113618.WAT <6> <br />