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�i <br /> SEQU001fi,Suite <br /> Concord,ANALYTICAL <br /> 4520 <br /> 1900 686-9 Avenue <br /> (5101686.9066 FAX(510)686-9689 <br /> ltaprealian Engineering,Inc. Client Project ID: k3eocal k6o15.LoGi.601 E.Kettleman Lane <br /> P.O.Box 996 Reported: Sep 19, 1991 <br /> Benicia,CA 94510 1e Group: 1081620-68 <br /> Attention: Mardo Kaprealian,P.E. QC Samp <br /> OUALITi Y CONTROL DATA REPORT <br /> SURROGATE <br /> EPA EPA EPA <br /> EPA EPA <br /> EPA EPA 8015J8O20 <br /> 8015 8020 8015/800 8015J800 8015/8020 B015+602u J Fnnsecha <br /> Method: 8015/8020 / J Eontecha J.Fan techa J.Fonlecna J.Fonrcha ppm <br /> Analyst: J.Fantecha <br /> J.FPp6rencha ppm ppm Ppm ppm <br /> Reporting Units: pPm1991 Sap S. 1991 Sep 8, 1991 Sep 8, 1991 Sep B. 1991 Sep B. 1991 Sep08 B. <br /> Se 8, 108-1643 10B-1644 108-1645 JOB-1646 <br /> Date Analyzed: P <br /> Sample#: 108-1641 108-1642 <br /> Surrogate 100 120 110 <br /> 110 83 87 <br /> %Recovery: 100 <br /> x 10D <br /> Cnc.at M.S.-Conc. <br /> a <br /> SEQUOIA ANALYTICAL Recovery: Spike Gona.Added T <br /> r } x 100 <br /> Relative%DiHerence: _ Conc.01 M.S. Conc.of US 0- <br /> ;Carnc.of h1 + 1081620.KE113> <br /> .S. Gonc.of td.S.D.)/2 <br /> Belinda C.Vega <br /> Laboratory Director <br />