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SEQUOIA ANALYTICAL <br /> 4520 s Avenue * Suite LMN - Concord,California 94520 <br /> (510) 686-9600 FAX (510) 686-9689 <br /> x-x <br /> Kaprealian Engineering, Inc. Client Project ID: Unocal, 601 E. Kettleman Ln., Lodi <br /> XI <br /> P.O. Box 996 <br /> X <br /> Benicia, CA 94510 <br /> '.'Attention: Mardo Kaprealian, P . OC Sample Group: 1120961-967 Reported: Jan 6, 1992 1-! <br /> X <br /> :x 01. .. .......... <br /> QUALITY CONTROL DATA REPORT <br /> SURROGATE <br /> EPA EPA EPA EPA EPA EPA EPA <br /> Method: 8015/8020 8015/8020 8015/8020 8015/8020 8015/8020 8015/8020 8015/8020 <br /> Analyst: J.F. J.F. J.F. J.F. J.F. J.F. J.F. <br /> Reporting Units: Mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg <br /> Date Analyzed: Dec 29, 1991 Dec 29, 1991 Dec 29, 1991 Dec 29, 1991 Dec 29, 1991 Dec 29, 1991 Dec 29, 1991 <br /> Sample 112-0961 112-M2 112-M3 1124)964 112-0965 112-0966 112-0967 <br /> Surrogate <br /> %Recovery: 96 95 96 100 97 100 98 <br /> SEQUOIA ANALYTICAL %Recovery: Cone.of M.S.-Cone.of Sample x 100 <br /> Spike Gone.Added <br /> Relative%Difference; Cone.of M.S.-Cone,of M.S.D. x 100 <br /> Belinda C. Vega r (Cont.of M.S. + Cone.of M.S.D.)/2 <br /> Laboratory Director <br /> 1120961.KEI eg> <br />