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j SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City,CA 94063 <br /> (415)364-9600 • FAX(415) 364-9233 <br /> Waterwork Ulent Project ID: 376, 02 1 <br /> 1710 Main Street mon, Stocldan <br /> JEscalon, CA 95320 <br /> Attention* Tina LePage QC Sample Group: 105133&1340 <br /> Reported: May 20, 1991 Y <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Diesel <br /> Method: EPAaois <br /> Analyst- R Lee <br /> Reporting Units- ng <br /> Date Analyzed- May 14. 1991 <br /> OC Sample#- DBL K 051391 <br /> Sample Conc.- N.D. <br /> Spike Conc. <br /> Added: 900 <br /> Conc. Matrix <br /> Spike: 650 <br /> Mabu Spike <br /> %Recovery: 61 <br /> Conc. Matrix <br /> Spike Dup.: 540 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery: 60 <br /> Relative <br /> % Difference: 16 <br /> ;t4h <br /> 01A ANALY 11 AL <br /> j %7-v Conc Cf M 5 -Conc of Sample x 100 <br /> iks Conc /added Relative X Dfffennoe cone.of M 5.-Canc.of K&D x 100 <br /> Manager I + nc or M o l l <br /> 10513M WAT <5> <br />