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i <br /> SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City,CA 94063 <br /> (415)364.9600 4 FAX(415)364-9233 <br /> ExceltechClient Project ID: aN349120-33,Qulk Stop tY120,1`0#210t}S+ <br /> 41674 Christy Street <br /> Fremont,CA 94538 <br /> Attentlon John Monroe ;CC Sample Group D080771-787 Reported Aag 22 1990 <br /> OUALITY CONTROL DATA REPORT <br /> ANALYTS High Loiling Point <br /> w Hydrocarbons <br /> Method: EPA 8015 <br /> Analyst: M.Ramos <br /> Reporting Units: mg/kg <br /> Date Analyzed: Aug 20, 1990 <br /> OC Sample#: Matrlx <br /> Sample Cone.: N.D. <br /> i Spike Cone. <br /> �- - Added: 15 <br /> ` Cone.Matrix <br /> Spike: 20 <br /> �- Matrix Spike <br /> %Recovery: 133 <br /> r-M <br /> L <br /> Cone.Matrix <br /> w Spike Dup.: 21 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 140 <br /> Relative <br /> %Difference: 4.9 <br /> SEQUOIA ANALYTICAL, %Raeovery: Cone,of M.S.-Cone of Sample x too <br /> Spike Conc.Added <br /> Relative%Mom=m= Conc.of M.S.-Cone.of M.S.D. x 100 <br /> Vickie Tagus (Conc.of M.S.+Conc.of M-5-U-)/2 <br /> Project Manager SMl ENS c6> <br />