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v <br /> F. <br /> SEQUOIA ANALYTICAL <br /> 19oo Bates Avenue a Suite LM a Concord.California 94520 <br /> (415)686.9600 a FAX(415►686.9669 <br /> K( preallan Engineering,Inc Client Project ID. Unocal,601 E.KettSeman Lane,Lodi <br /> P.O.Box 996 <br /> ;Benicia,CA 94510 Reported Mar 21, 1991 <br /> ::Attention:Mardo Kaprealian P E OC Sample Group 1030596 801 <br /> QUALITY CONTROL DATA REPORT <br /> SURROGATE <br /> EPAS015/8020 EPA8015/6020 EPA8015/8020 EPA8015/8o2o EPA8015/8)20 <br /> Method: EPA8015/8020 EPA8015/8020 <br /> Analyst: E.Hamilton E.Hamilton E.Hamilton E.Hamilton E.Hamilton E.Hamilton E.Hamilton <br /> RlnJ Units: jig/kg pg/kg N9/kg kg/kg Ng/kg irg/kg pg/kg <br /> Repo <br /> Date <br /> Reporting <br /> U ed: Mar 20, 1991 Mar 20, 1991 Mar 20, 1991 Mar 20, 1991 Mar 20, 1991 Mar 991 Mar Blank <br /> Sample 961 <br /> #: 3-0596 103-0597 103-0598 183 0589 00 <br /> 10+96 <br /> Surrogate100 83 190 100 160 110 <br /> %Recovery: 92 <br /> `-"SEQUOIA ANALYTICAL %Recovery: <br /> Cone.of M.S.-Conc.of Sample x 100 <br /> $pike Conn.Added <br /> Relative 96 Difference: <br /> Cono.of M.S.-Cane.of M.S.D. x 100 <br /> y � <br /> Belinda C.Vega (Cont,of M.S.f Conc.at M.S.D.l/2 1=�.XEI <3> <br /> Laboratory Director <br />