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qi uyW - <br /> r• <br /> x. <br /> - d <br /> . SEQUOU ANALYTICAL <br /> 680 Chesapeake Drive ► Redwood City.CA 94063 <br /> (415)364-9600 + FAX(415)364-92;33 <br /> Waterwork (Nerd Project 10:Eckholm <br /> 1710 Main Street <br /> Sim Escalon,CA 95320 <br /> Attention: Bili Channell QC Sample Grog 104-3733 Reported:May C 1991 <br /> �a <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> lead Wn-JUM Chromfum 26nc Nan k U4id <br /> Method: EPA7421 EPA6010 EPA6010 EPA6010 LUFT <br /> Analyst: V.Patel S.Faster S.Faster S.Foster V.Patel <br /> Reporting Units: -9/kg mg/kg mg/kg rna/kG m0/k9 <br /> Date Analyzed: May 5, 1991 May 3, 1991 May 3, 1991 May 3, 1991 May 2. 1°.91 <br /> QC Sample it: 104,3298 104,'J S 104-3085 104,9085 Matrix <br /> Sample Conc.: 5.0 61 240 200 N-D. <br /> Spike Cone. <br /> Added: 50 250 250 250 025 <br /> Conc.Matrix <br /> Spike: 45 270 530 510 0.23 <br /> Matrix Spike <br /> %Recovery: 80 110 120 120 92 <br /> Conc.Matrix <br /> Spike Dup.: 47 260 510 510 0.20 <br /> Matrix Spike <br /> Duplicate <br /> Recovery: 84 100 110 120 80 <br /> Relative <br /> %Difference: 4.3 3.8 3.8 0.0 14 <br /> :---SEf]UOIA ANALMCAL--------------. Recovery- Conc.of M.S.-Conc.of Semple _x too <br /> { � � Spike Cone.Added i <br /> Rolafive%Diffamnee: Conc.of M.S.-Conc.of M.S.D. x too <br /> za th Ha {Cane.ct M.S.+Conc.of M.S.D.) 2 <br /> �� yyIl 1043T31.WAT <15> <br /> PSoJect Manager <br /> J <br />