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VX -ep Oil�. e r <br /> . �4)l. I � €..• �i ll� <br /> SEQUOIA ANALYTICAL <br /> 1900 Bales Avenue • Sutile LM • Concord, Cahlornia 9,1520 <br /> (415)666.9600 • FAX(415)686.9689 <br /> Kaprealian Engineering,Inc. Client Project ID:Unocal,601 E.Keuleman Lane,Lodi <br /> P.O.Box 996 <br /> :.Benicia,CA 94510 Reported: Mar 21, 1391 <br /> Attention: Marcio Kapreal€an,P.E. QC Sample Group: 1030591 95 <br /> QUALIT-Y CONTROL DATA REPORT <br /> ---= <br /> Chloro• <br /> Trich€ora G�loro <br /> ANALYTE benzene genxene Toluene benzene{PID) <br /> �1.1.D;chlaroeihan- ethena <br /> Method: EPA 8010 EPA 8010 EPA 8010 EPA 8024 EPA 8020 EPA 3020 <br /> K.L/E.H. K.€_/E.H. KL/E.H. K.L/E.H. K.L./E.H. <br /> Analyst: K.L/E.H. k 119/kg 1109 N9/kg Ng/kg <br /> Reporting Units: pg/kg <br /> Mg/ 9 21, <br /> 1, 1991 <br /> Date Analyzed: Mar 21, 1g991 !afar 21. 1991 Mar 21, 1991 Mar 2 Matrix <br /> :991 MarMatrix 991 Marts Matrix <br /> Malrix <br /> OC Sample#: Matrix Matrix oLKtrix BLKD32191 BLK032191 BLK032191 <br /> OLK032191 BLK032191 <br /> N D. N.D. <br /> N.D. N.D. N.D. N.D. <br /> Sample Canc.: <br /> CL. <br /> Spike Cone. 160 160 160 160 <br /> Added: <br /> 160 160 <br /> C-snc.Matrix 90 98 <br /> Spike: <br /> 69 90 110 <br /> Matrix Spike 90 110 90 88 98 <br /> °h Recovery: <br /> 69 <br /> Cone.Matrix 110 92 91 99 <br /> Spike Dup.: <br /> 71 as <br /> Matrix Spike 91 99 <br /> Duplicate 88 110 92 <br /> °k Recovery: 71 <br /> Relative0 2.2 3.4 1.0 <br /> %Difference: <br /> 2.9 2.2 <br /> %pecavery COnc.of M.S.-Cone.of Same e <br /> x..100._.._._ _.._._._ <br /> SEQUOIA ANALYTICAL Sp€ke Ganc.Added <br /> n x 100 <br /> 11I <br /> Relative%Difference: nc.a1 M.5.-Conc.of M.S.D, <br /> _—:(Cone.01 M.S.4 Cone.of M.S.D.] 2 10'A59t.KEl <8> <br /> Nnda C.Vega <br /> Laboratory Director <br />