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SEQUOI)'"4 ANALYTICAL <br /> 12040 Sates AvenU$ * Suite L.M 6 Concord,California 94520 <br /> (510) 686-9066 FAX (510) 686-9689 <br /> MV:42MM, <br /> ��EngineeringofN. Uff ClIOMtPFOleCtID'. *190,2421N.Wlaonwaty,atock,toii <br /> �,2821 WhIppis Road <br /> Union City, CA 94887 <br /> 00 Sample Group: 1081 5e5-8 ad., -Sp <br /> p 13, 1991 <br /> QUALITY CONTROL DATA REPORT <br /> JANALYTE Ethyl. <br /> sen2one Toluene -Benzene U*Asis <br /> Method: EPSaw5/a020 EPSW15/8020 2PS80I3/a020 EPSM15/3= <br /> Analyst; F4H/.3F RH/JF F(H/JF K4/4F <br /> Raporthng Unks: ma/kg m9/kg mg/kg mg/kq <br /> Oats Analy2ed: Sep to, togi Sep 10, 1991 sap 10, 1991 Sop 10, 199' <br /> ,^1 91 lost,.,C Sample #: 80=1col 3L<091091 OLKO91001 <br /> Sample Cone.., N.D. N.D. N.D. N.D. <br /> Spike Cone. <br /> Added: 0.40 0.40 0.40 1.2 <br /> Cone. Matrix <br /> Spike: o,48 0.38 0.47 1,4 <br /> Matrix Spika <br /> % Recovery: 120 as 120 120 <br /> Cone. Matrix <br /> Spike Dup.: 0.47 0.39 0.48 1.5 <br /> Matrix Spike <br /> Duplicate <br /> • Recovery: 120 98 120 120 <br /> Relative <br /> • Difference., 2.2 2.6 11 8.9 <br /> SEQUOIA ANALY11CAL Cono.of M.S.•c7ano.of sample, X 100 <br /> Spike Cone.A44ed <br /> 9L <br /> PAfatlys 16 01146rence: Cone,of M.S.-come.of M.S.D. X 100 <br /> Ju a R. Malerstaln (C460-,of M.S. + nm 2 <br /> Pr?le&. Manager 1081WS.TPE <2> <br />