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i I <br /> SE 1A ANALYTiICAL. 686689 P. 06 <br /> SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City,CA 94063 <br /> (415.) 36A-9600 - FAX(415) 364-9233 <br /> ,-.Delta i=rlvironmenial Consultants Client Project 10: X40-90-838%Lodi S - <br /> hell14 <br /> 3330 Data Drive <br /> Rancho Cordova. CA 95670 <br /> Attarltion: Jim Brownell ^.. _ <br /> } y QC Sample Group: 0114418-23 Nov ie, 190 <br /> I Reported: <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Leo <br /> Method: EPA 7240 <br /> Analyst: N.Herrera/Son La <br /> Repotting Emits: M(;Aa <br /> Date Analyzed: Nov 14. i o <br /> C OC Sample#: 011-0416 <br /> Sample Conc.: N.D. <br /> Spike Conc. <br /> Added: 0.50 <br /> Conc. Matrix <br /> Spike: 0.38 <br /> Matrix Spike <br /> %Recovery: 75 <br /> Conc. Matrix <br /> Spike Dup.: 0.39 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery: 77 <br /> Relative <br /> % Difference: 2.6 <br /> SEQUOIA <br /> pANALYTICAL <br /> f %Recovery: Conc,of M.S.•Conc of Samosa x 100 <br /> sv+ke conn aedoe <br /> Relative%Difference: Cone.of M.S.-Conc.of M.S.D. x 100 <br /> is R. Malerstein li. Conc.of M.S. + Cono.of M.S.D. 2 <br />