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ANORTH <br /> W CREEK <br /> .A VANALYTICAL <br /> 18939 120th Avenue N E.Suite 101 • 8oihell, WA 98011-2569 <br /> Phone(206)481-9200 -FAX (208)485.2992 <br /> i <br /> Steffen Robertson & Klrsten Client Project ID Diamond Lumber, Mantea, CA Analyst J Kimball <br /> 15311 NE 90th Street Method EPA 4181 mod <br /> Redmond,WA 98052 Sample Matrix Water <br /> Attention Rob Gwilym Units mg/L Analyzed Oct 22, 1991 > <br /> OC Sample # BLK102291 > <br /> p Reported Oct 23, 1991� <br /> x'�'..{..�+b`'�Y"�«�„'"�o„�e+M.•- s '^>.+,.C-"Y-^Y >'4 "^Y'�^�.`""i h•...,r= .,,-�.,..=M.. .,�A v"5.....�"N""�ak",o,. C' •-tr^^c'3C^�"^.µ.nti.�...t,^w...= <br /> +vsa'+a."wixix,r c 4 .....-..n.•w�..>yA�asr�u s�.r>w ebxirx.0••,t-, e3 0 « •o,Now wn �a..n.�wxww.wesx.E<w,w Sa.�x.w«-x.,s+ox=+'vraau..y...>ea.x«+sare`mac <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Petroleum <br /> Sample Conc : N D <br /> Spike Conc <br /> Added. 15 <br /> Conc. Matrix <br /> lbSpike: 12 <br /> Matrix Spike <br /> % Recovery. 80 <br /> Conc. Matrix <br /> Spike Dup.: 12 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery. 80 <br /> Relative <br /> % Difference: 0 <br /> i H CREEK ANALYTICAL. %Recovery Conc of M S •Conc of Sample x 100 <br /> Spike Conc Added <br /> Relative%Difference Cone of M S -Cone of MSD x 100 <br /> of Cocanour {Conc of M S + Conc of M S D} 2 <br /> boratory Director 1100685 SRK <4> <br />