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1 <br /> SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drnre - Redwood City, CA 94063 <br /> (415) 364-9600 FAX (415) 364-9233 <br /> Tient Prosect ID 150U08 01, Hendnx Trticking Analyst- 'RNL.ister, <br /> i 7i 0 Main Street Method EPA 5030/8020 <br /> Escalon, CA 95320 Unris- pg/L Analyzed May 19, 1993 Y <br /> Attention John LaneA QC Sample Group 3E39401 w_ Reported. May 24, 1993 <br /> ;�e�nc., s a.•.vn}vJ;n3 8'sc,' n •cr++nv�+ti+*�¢a��v.4 rrlf/..,..}i;,e^�M,acn��<.y �+�+•{�+++��*+a�f*a�.�raa�,.h,w�,�enrec�,�nMKu-carrµn,�,,. n,} �,..13'c pyy}n- •�ce•�,rs��xarYry^�-��*'F' <br /> w]Wr+"}�.O s.'•'7 M03tw�Frrr v.JC1,nN}4.W_}�.ti,fl uhwmwlsG.�txr..r.:-:.m 3rx k rn r 4i'FH viA�'Af Fm�Ytfrxs�m•n.n,.}}S}x}.SA{v.&.x.i w v�..vi�eH.v..v�i`vxr.�fiw.�krAWAW�'S1�2�`+1w+YFYwukv:{++il..U.�vrr <br />' QUALITY CONTROL DATA REPORT <br />' ANALYTE Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> Sample Result: N D. N D. N.D. N D. <br /> 1 Spike Conc. <br /> Added: 5 0 5 0 50 15 <br /> Spike Result: 54 5.4 55 17 <br /> Spike <br /> % Recovery: 108 108 110 113 <br />' Spike Dup. <br /> Result: 5 4 5.4 5.4 16 <br /> Spike Dup. <br /> %Recovery: 108 108 108 107 <br />' Upper Control <br /> Limit%: 123 118 126 114 <br />' Lower Control <br /> Limit%: 87 89 88 92 <br />' Relative <br /> % Difference: 0 0 0 0 18 61 <br /> Maximum <br />' RPD: 83 7.9 80 12 <br /> EQUOIA ANALYTICAL x Raeove r Cone of M S -Cone of Sample x loo <br /> W rSpike Cone Added <br />' Relative%Difference Cone of MS -Cone of M S D x 100 <br /> VCkle Tag (Cone of M S + Conc of M S DF/-2 <br /> Prolect Manager 3E39401 wAT <2> <br />