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a +: % <br /> SEQU64 ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 FAX (415) 364-9233 <br /> W::> ....... <br /> at <br /> erw <br /> or <br /> k <br /> Client Project ID: 00148-3, Stockton Smith Canal """" <br /> €1710 Main Street <br /> Escalon, CA 95320 <br /> Attention Dave Welch QC Sample Group 910-3364 <br /> :.:..... <br /> Reported Nov 2 1989 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Diesel <br /> Method: EPA 8015 <br /> Analyst: E. Hamilton <br /> Reporting Units: ug/L <br /> Date Analyzed: Oct 29, 1989 <br /> OC Sample#: Matrix <br /> Sample Conc.: 0 <br /> Spike Conc. <br /> Added: 320 <br /> Conc. Matrix <br /> Spike: 250 <br /> Matrix Spike <br /> %Recovery: 78 <br /> Conc. Matrix <br /> Spike Dup.: 232 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 73 <br /> Relative <br /> %Difference: 7.5 <br /> SEQUOIA ANALYTICAL %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 /> Blom A. Blorkman (Conc.of M.S. + Conc.of M.S.D.) 2 <br /> Project Manager <br /> 9103384.wnT <4> <br />