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w _ <br /> �w <br /> SEQUOIA ANALYTICAL <br /> '--N 680 Chesapeake Drive • Redwood City,CA 94063 <br /> (415)364-9600 FAX(415)354-9233 <br /> - <br /> Waterwork Client Project 1D: 00146-2,Stockton Wastewater <br /> 1710 Main Street <br /> :Escalon,CA 95320 <br /> F� =Attention Dave Welch QC Sample Group - Reported:Nov 16, 1989 <br /> F' QUALITY CONTROL DATA REPORT <br /> t <br /> rALYTE Diesel <br /> r Method: EPA 8015 <br /> E : Analyst: E.Hamilton <br /> Reporting Units: erg/t_ <br /> Date Analyzed: Nov 13, 19H <br /> } ; QC Sample#: Matrix <br /> r Sample Conc.: 0 <br /> i� <br /> Spike Cortes <br /> Added: 300 <br /> iy <br /> Cone.Matrix <br /> Spike: 251 <br /> ( ' Matrix Spike <br /> t: %Recovery: 84 <br /> Cone.Matrix <br /> Spike Dug.: 259 <br /> b Matrix Spike <br /> Duplicate <br /> j' <br /> %Recovery: 87 <br /> 6 <br /> Relative <br /> %Difference: 3.1 <br /> IP3 <br /> SEQUOIA ANALYT1 AL %Recovery: _ Conc.of M.S.-Cone,of Sample x 100 <br /> Spike Cone.AddRd <br /> Nlative%Difference: Cons.of M.S.-Conc.of M.S.D. x 100 <br /> sj A.Ejorkman (Conc.of M.S.+Conc.of M.S.D.)/2 <br /> P j t Manager <br /> 9o0zs.wnr <a> <br /> is <br />