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0,Ems <br /> r <br /> gl <br /> i7- � I i I I <br /> SEQUOIA L IL <br /> 680 Chesapeake Drive • Redwood City,CA 94063 <br /> �. (415}364-9600 • FAX(41M364-9233 <br /> Ala erwork Cllsnt Protedfl D 75.Weber Point < <br /> 1710 Main Street <br /> Fscalm CA 95320 <br /> Attention- Tins Le Page OC Sample Group:2021253-54 Y Reported:Feb 18, 1992 <br /> N <br /> DUALFTY CONTROL DATA REPORT <br /> ANALYTE enyr- ... <br /> - w--tzar►. roEomw baa.r,. )cyrer,as <br /> Method: EPA8020 EPA S= EPA 8020 EPA5020 <br /> Analyst: K Npp A NPP K&NPP M.MPP <br /> Reporting i.inits: tg/L Pg/L P91L Pg/L <br /> Date Anaifyzed: Fvb i0. 1952 Fete 10, 1882 Fab 10. 1992 Feb 10, 1992 <br /> OC Sampie 1P: GELKMI092 GBLK021o82 GBLK021092 GBUW,1092 <br /> MS/MI-0 MS/MSD MS/MSD MSIMSD <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Spike Conc, <br /> Added: 10 10 10 30 <br /> Conc.Matrix <br /> Spike: 9.7 9.7 29 <br /> OVlstrix Spike <br /> %.Recovery: 97 96 97 97 <br /> Conc.6datft <br /> Splko Loup.: 9.2 9.2 9.1 27 <br /> Matrix Sp:kc. <br /> Duplicate <br /> %Recovvrjr 92 92 91 90 <br /> Relailve <br /> %Difference: 5s1 4.3 6.4 7.1 <br /> SEQUOIA ANALYTICAL %Pewvory Conc.of M.S.•Gana c.1 Sem x 100 <br /> Spike Conc.AdL1ed <br /> WON*%t7iflerence: Cunt.c.1 M.S.-Cora.of M.S.D. x 100 <br /> (PP anager 2021259.WAT 0:c. <br /> ;4 <br />