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`.'g <br /> ° _ ° ',S.' ?fire ' .. _ - _,�s 'r '..._;-„r,•� g - ;.`'72:x., .-a°_.'�w_. <br /> ti � <br /> .:a�r,-"?�++� <br /> b.�q "•.- ''w;v., -"," - ; �. F �.�-:.ar. � a4• �' - ^� x.-�..5'�`r`,�M��S"F-.Av�+ °°^JP."".:W ,�'"" r� �m� r.w m,v �i,�' ' 2 `•',h`'�+ <br /> �P <br /> SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City,CA 94063 <br /> ti (415)364-3600 FAX(415)364-9233 <br /> 330 ata Driv ental Consultants Client Project ID 4p 88.586 Charter Way,Sheil,Stockton <br /> 3330 Data Drive <br /> Rancho Cordova CA 9567G <br /> Attention Hal D1hm OC Sample Grout)' <br /> 1 044560-1044566 <br /> neported. May <br /> .:.; 1991 .' <br /> OUALITY CONTROL DATA REPORT <br /> ANALYTE Benzene <br /> Toluene Ethyf Xylenes <br /> Benzene <br /> EPA EPA EPA EPA <br /> Method: 8015;8020 earS/bozo 601518M aols�aozo <br /> Analyst: S.Chieffo S.Chfeffo <br /> Reporting Units: S.Chieffo S,Chleffo <br /> Date Analyzed: May 1. 199t no ng no <br /> QC Sample#: $LK0450191 May 1. 1991 May 1, 1991 May 1, 1991 <br /> BLKOd50191 BLK0450191 BLK045o197 <br /> Sample Conc.: N.D. N.D. <br /> N.D. N.D. <br /> -' Spike Cone. <br /> Added: 100 100 <br /> 100 300 <br /> Conc.Matrix <br /> Spike: <br /> 100 100 <br /> 100 300 <br /> Matrix Spike <br /> 0/.Recovery: 100 100 <br /> 100 100 <br /> Conc.Matrix <br /> Spike Dup.: 100 100 140 <br /> 300 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: t00 100 <br /> 100 100 <br /> Relative <br /> %Difference: 0.0 0.0 <br /> 0.0 0.0 <br /> =E1O_CI0IA ALYTICAL E%Diffe,e/l01 MS.•fonf Sample x loo�. rSpike Conc.Added: Conc,of M.S.-Conc.of M,S.B. 100 <br /> Malle Mc8 n pringe� <br /> Pro)ect Manager JJ lCorac.of M.S.+Conc,al M,S,D.)12 <br /> 1044560,DLT <8> <br /> F <br /> Iy <br /> _ :Y <br />