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i <br /> SEQUOIA ANALYTICAL <br /> 680 Che a Drive • Redwood C CA 94063 <br /> saps +tY. <br /> (415) 364-9600 FAX(415)364-9233 <br /> �i' �VOOP"eYwOC��h10GW,..'fr"v f 'fes lJ G 4 � -------------------- <br /> F: Air �wwVY r n+,v • vi�i6.v` ` � V ��wvix'� � <br /> lWaterwork K Olent Project ID- 16f/Chevron, Stockton <br /> I1710 Main Street <br /> . Escalon,CA 95320 <br /> Attention. Tina LePage DC Sasnpie Group t063516�3518 Reported:JLd s, 1991 <br /> .1it.SdtdG.wz... 'c„cb.3z.&icm � �t <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE i <br /> Diesel <br /> Method* EPA8015 <br /> Analyst: R Lee <br /> Reporting Units ng <br /> Date Analyzed .lure 27, 1991 <br /> OC Sample# Deuc 06221 <br /> Sample Conc : N D <br /> .Spike Conc. <br /> Added: 900 t, <br /> ' Conc. Matrix <br /> Spike- 710 <br /> i <br /> Matrix Spike <br /> %Recovery: 79 <br /> Conc. Matrix <br /> Spike pup : 790 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery* 88 <br /> Relative <br /> % Difference 11 <br /> I <br /> SEQUOIA ANALYTICAL %Recovery Conc of M S -Conc of Sample x 100 <br /> Spike Conc Added <br /> Relat m%Werence Conc of M S -Conc of M S D x 100 <br /> ! et W aC (Cane at M S + Conc at M S D)/2 <br /> L P <br /> toe <br /> Manager i sw WAr <4> <br />