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' NORTH <br /> A CREEK <br /> .moi ANALYTICAL <br /> 18939 120th Avenue N.E., Suite 101 - Bothell,WA 98011-2569 <br /> Phone(206)481-9200- FAX (206)485-2992 <br /> Steffen Robertson& Kirsten Client Project ID: Diamond Lumber-LODI Analyst ; R. Lister <br /> 15311 NE 90th Street Method : EPA 5030/8020 S. Stowell <br /> Redmond,WA 98052 Sample Matrix: Water <br /> Attention: Dave Schwieger Units: )rg/L Analyzed: Dec 3, 1991 F <br /> :..:n.. <br /> QC Sample #: 111-1237 Rrorted: Dec 4, 1991 Vii€ <br /> :".A'�'?",•".�. %;::%i::C#7i.. - >•$�: w;r:::�?ar�?;s:.. :>'t�?r;«`?+.;��sv..r?>` ;'i�3^'?�'' v, <br /> ,. „V.r.�.d 'a�....,r '- .... ...,.....r3.' '�,.uG.w.c �'r' 'Y���r'l�.sc+xw:>ti-'< <br /> QUALITY CONTROL DATA REPORT <br /> ' ANALYTE ethyl <br /> Benzene Toluene benzene Xylenes <br /> ' <br /> Sample Cone.: N.D. N.D. <br /> p N.D. N.D. <br /> Spike Colic. <br /> Added: 5.0 5.0 5.0 15.0 <br /> ' Conc. Matrix <br /> Spike: 5.0 4.8 5.4 14.8 <br /> Matrix Spike <br /> ' %Recovery: 100 96 104 99 <br /> Conc. Matrix <br /> 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 /> ORTH CREEK ANALYTICAL x Recovery: Conc.of M.S.-Conc.of Sample x 100 <br /> Spike Conc.Added <br /> Relative%Differenoe: Conc.of M.S.-Conc.of M.S.D. x 100 <br /> Cocanour (Conc.of M.S. + Conc.of M.S.D.) 2 <br /> ' Laboratory Director 1111234.SRK 0> <br />