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re <br /> ' SEQUOIA ANALYTICAL RECEIVED MAY s SM <br /> 680 Chesapeake Drive • Redwood City;CA 94};3 <br /> 015)364-9600 FAX(415)364-9233 <br /> � ernorl: <br /> 1.1710 Alain Street <br /> -jEscalon,CA 95320 <br /> �Attentlon: Bili Channell QC Sample Group: <br /> ~'°-ix•. . ?" 1042985-2995 Reed May n1 1991 <br /> Fa <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> E t]iesal <br /> i.t <br /> "± Method: EPA8015 <br /> I a Analyst: M.Ramos <br /> Reporting Units: mg/kg <br /> Date Analyzed: Apr 19. 1991 <br /> OC Sample#: Matrix <br /> I�I - Sample Conc.: N.D. <br /> Pi Spike Conc. <br /> t Added: 900 <br /> Conc.Matrix <br /> Spike: 760 <br /> t` Matrix Spike <br /> w %Recovery: 84 <br /> Conc.Matrix <br /> :. Spike Dup.: 740 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 82 <br /> — <br /> %Difference: 2.7 <br /> SEQUOIA ANALYTICAL %pecovery Conc,a1 M.S.•conc.of sample x too <br /> Spike Conc.Added <br /> r lative%Offerance: Cone.of M.S.-Cone.of M.S.D. x 100 <br /> izai,eth ac (Conc.of M.S.+ <br /> oject Manager Cana.of M.S D.) 2 <br /> 1042988.wAT <7� <br /> 1� - <br />