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v�= <br /> E <br /> r <br /> SEQUOIA ANALYTICAL <br /> 660 Chesapeake Drtve • Redwood City,CA 94063 <br /> .� (415)364.9600 FAX(415)3(34-9233 <br /> z <br /> Watenvork Client Project ID: #''4"0'257'-'1',"S ebasitani Vineyards <br /> s< <br /> 1710 Main Street <br /> Escalon,CA 95320 <br /> $ <br /> f! <br /> Attention Hussell,luncal QC Sample Group:0090925-0090934 Reported Sep 13 1990 <br /> 1 QUALITY CONTROL DATA REPORT <br /> i <br /> ! ° (ANALYTE Benzene Totuene Ethyl Xylenes <br /> f Benzene <br /> EPA EPA EPA EPA <br /> Methri1: 6015/8020 8019/8020 8015/1,020 8015/8020 <br /> Analyst: W.Parks W.Parks W.Parks W.Parks <br /> Reporting Units: j;$/t. pa/L 179/L 111,7/L <br /> Date Analyzed: Sep 11, 1990 Sep 11, 1990 Sep 11, 1990 Sep 11, 1990 <br /> QC Sample#: 009-0932 009-0932 009-0932 Mg-0932 <br /> Sample Cone.: N.D. N.D. N.D. N.D. <br /> Spike Cone. <br /> Added: 10 10 10 30 <br /> Conc.Matrix <br /> Spike: 8.6 8.1 8.2 26 <br /> Matrix Spike <br /> %Recovep{: 86 81 62 87 <br /> Conc.Matrix <br /> Spike Dup.: 8.3 7.7 7.8 24 <br /> Matrix Spike <br /> Duplicate <br /> °A Recovery: 83 77 78 80 <br /> Relative <br /> %Difference: 3.5 4.9 4.9 7.7 <br /> --------------- _-- _ SEQUOIA ANALYTICAL{ %Recovery: Cone.of M.S.-Conc.of Sample x 100 <br /> / Spike Conc.Added <br /> Y <br /> alalive%Difference; Cone.of M.S.-Conc,of M.S.O. x 107 <br /> I abeth W.Hacki iCono.of M.S.+Cone.of M.S.D,)/z <br /> PfoJect Manager.. 90925.WAT <z> . . <br />