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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive * Redwood Crty,CA 94063 <br /> (415)364-9600 FAX(415)384-9233 <br /> r <br /> Y aterwork piens Project lD. #376 <br /> 1710 Main Street <br /> ESCalon, CA 95320 <br /> Attention. Tina Le Pae 's <br /> 9 OC Sample Group: 1084308-10 <br /> Reported: Aug 27, 1991 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Diesel <br /> Method- EPA 8015 <br /> Analyst: M.Lmr <br /> Reporting Units- Pg/L <br /> Date Analyzed Aug M 1991 <br /> OC Sample#. DauK05=1 <br /> Sample Conc.: N D <br /> 40 pike Conc. <br /> Added. 600 <br /> Conc. Matrix <br /> Spike: 550 <br /> Matrix Spike <br /> %Recovery: 92 <br /> Conc, Matrix <br /> Spike Dup.: 450 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 75 <br /> Relative <br /> %Difference: 20 <br /> SE UOIA ANALYTICAL %Fbcavary. i Cone,of KS -Conc of Ssmpie x 100 <br /> Spike Conc.Added <br /> r <br /> Aeled"%Difference Cone.of M.S.-Conc of M&D x 100 <br /> tl`F C (CWonc of M S + Conc of M S D) 2— <br /> Pr ject Manager <br /> 1054308.WAT t4> <br />