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SEQUOIA ANALYTICAL <br /> • 680 Chesapeake Drive • Redwood City,CA 94063 <br /> (415)364-9600 • FAX(415)364-9233 <br /> Waterwork Ghent Project ID #376 <br /> 1710 Main Street <br /> T E=Won,CA 95320 <br /> Attention. Tine Le Pale CC a Group 1U84308-10 R 27, 1991 <br /> QUALITY CONTROL DATA REPORT <br /> ANALy <br /> Diesel 7= <br /> Method- EPA Sol 5 <br /> Analyst: kr1.LdkMma.-i <br /> Reporting Unb- Pg/L <br /> Date Analyzed Aug 26. 19M <br /> OC Sample#- Daum ml <br /> Sample Conc.: N D <br /> • Spike Conc. <br /> Added: 600 <br /> Conc.Matrix <br /> Spike: 550 <br /> Matrix Spike <br /> %Recovery: 92 <br /> Conc.Matrix <br /> Spike Dup.., 450 <br /> Matra Spike <br /> Duplicate <br /> °b Recovery: 75 <br /> Relative <br /> %Difference: 20 <br /> SEtJC91A ANALYTICAL Aeaevaryr Conc of M S -Conc of Sam o x too <br /> Soke Cone Added <br /> • iiaistl�e 9�DWerefino Cone of M$ -Com of M S o x 100 <br /> Whc Ceac of M$ + Coro of M S D 2 <br /> CIL <br /> pject Manager 10641E18WAY c4> <br />