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SEQUOIA ANALYTICAL <br /> j 680 Chesapeake Drive - Redwood City, CA 94063 <br /> (415) 364-9600 FAX(415) 364-9233 <br /> :�ry4{:{•�.:rv:5r.{:r,.:..-$ ..:s....... ...:......n.• ...............:.:.:.vv:.�:::..::::r.n...........' _ :t: :.,.:,.. <br /> ?:r:.:.::�::r:�•......,.:-:v.:i.r<r:2.?}i:-•...:::...:.r:.�..s....::::,:,vu:+.::::.::n::.--......:. ..:. - ::::.4�.�::n:;::::......:.............. <br /> rBrunsing Associates, Inc. Client Project ID: 260.4, Doane Products <br /> 1735 E. Bayshore, Suite 2A <br /> s Redwood City, CA 94063 <br /> " nti n Joel Bruxvoort QC Sample Group: 209-2132 Reported: Sep::Atte o R rted: S 28, <br /> 1992 <br /> .:....:.........:r,:...,..r.r.rv::iso:.:...x..,:.,,...r.........:..r....n..,:..v.......nr.............,:v,.v......rrnu.......rx....,...,r. <br /> r::::�:s: i •?:i C Y:t�.:�:.�:::::::..:......�r::::;��.�.?::::?:?:�. <br /> ..........:.�... .::::.:::.�nom;........,. �..:::�-:-v .:.. .... ............. .............. ... <br /> n:..v*!ti:-.:..:.........n.n.,:.:...:.n..::.:.....v:., <br /> �I <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE pH Flashpoint Reactive Cyanide <br /> Sulfide <br /> Method: EPA 9045 EPA 1010 EPA 9030 EPA 9010 ! <br /> Analyst: Y.Arteaga K.Follett K.Follett A.Sawa <br /> Reporting Units: units °C mg/kg mg/kg <br /> Date Analyzed: Sep 15, 1992 Sep 18, 1992 Sep 18, 1992 Sep 18, 1992 <br /> QC Sample#: 209-2128 209-2441 k2092132 209-2508 <br /> Sample Conc.: 7.4 >100 N.D. N.D. <br /> i <br /> I' <br /> ;pike Conc. <br /> Added: N.A. N.A. 1300 2.9 <br /> _. Conc. Matrix <br /> Spike: N.A. N.A. 1600 2.8 7 <br /> Matrix Spike <br /> %Recovery: N.A. N.A. 12.3 97 <br /> Conc. Matrix <br /> Spike Dup.: 7.4 >100 1700 2.9 <br /> i <br /> Matrix Spike <br /> Duplicate j <br /> %Recovery-. N.A. N.A. 130 100 <br /> i <br /> I <br /> I <br /> Relative <br /> %Difference: 0.0 0.0 6.1 3.5 <br /> i <br /> - I <br /> ` 5000IA ANALYTICAL %Recovery: Conc.of M.S.-Conc.of Sample x 100 1 <br /> fir✓J �� � Spike Gone.Added ; <br /> 1 <br /> Relative%Difference. Conc.of M.S.-Conc.of M.S.D. x 100 ' <br /> Nokowhat D. Herrera (Conc,of M.S. + Conc.of M.S.D.)/2 <br /> f. Project Manager zo941fs.Bes <io> <br />