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=:NORTH <br /> == CREEK <br /> 6IM-9 ANALYTICAL <br /> 18939 120th Avenue N.E., Suite 101 - Bothell, WA 68011-2569 <br /> Phone (206) 481-9200- FAX (206)485-2992 <br /> XnM­.. <br /> WM� A.w R: <br /> • X <br /> 'Wleffen Robertson Klrsten Client Project ID: Dia'mond Lumber-LODI Analystry::'; <br /> Uster <br /> 15311 NE 94th Street X <br /> Method : EPA 5030/8020 S.'Stowell til'i <br /> ,Redmond. WA 98052 Sample Matrix : Water <br /> Dave Schwieger Units : pg/L <br /> Analyzed. Dec 3, 991 <br /> OC Sample #: 111-12.37 <br /> g Reported: <br /> Dec 4. 1991 <br /> M� <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Ethyl <br /> P-nzene Toluene benzene Xylenes <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Spike Conc. <br /> Added: 5,0 5.0 5.0 15.0 <br /> Conc. Matrix <br /> Spike: 5.0 4.8 5,4 14.8 <br /> isMatrix Spike <br /> . I % Recovery: 100 96 104 99 <br /> F <br /> Conc. Matrix <br /> I Spike Dup.: 4.4 4.4 5.0 14.8 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery: 88 88 100 99 <br /> Relative <br /> % Difference: 13 8.7 3.9 0 <br /> i1TH CREEK ANALYTICAL 1%Recovery: Conc.of M.S.-Conc.of Sample X IDO <br /> Spike Conc.Added <br /> Relative%Difference: Conc,of M.S.-Cone.of M.S.D. X 100 <br /> Cocanour (Conc.of M.S. + Conc.olM.S.D.)/2 <br /> boratory Director <br /> 1111234.SRK <3> <br />