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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364.9600 FAX(415) 364-9233 <br /> ID 404 N.Wiget lane Walnut Creek,CA 94598 (510) 988.9600 FAX(510) 988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento, CA 95834 (916) 921-9600 FAX(916)92 1-0 100 <br /> w:6}Px.}n:}.}:v.:u}:?v":�v,.;v..nv{.}.p..;n}m.}pyy'+p:M:.y.yb!••.;rm ,vy.:::/fm+w.w,}:x}.}ah•;4!n:.}]uvar"rv:'-r4, :i'C,F-::•Y,.^YY�`yr;:;v..}t. <br /> ...u,v:::.0}n' :w.•n},:y.},-ns-.:;.a,wnwM n.:`a'-:••_:.};::.:v.:-., v.,: ... :Tn..J. <br /> 4.v _ .:.Xi :.-};.?•:.l-,:h..-. ?:f•: •W r iv7.L'ih3Ynr.-f.••�}:" <br /> :..ti. <br /> n,..+;a?drNr;W:•': s <br /> ¢Blaine Tech Services,Inc. Client Project ID: hChevron 9-0557n/96082'1-Kl <br /> 985 Timothy Drive Matrix: Liquid <br /> ,,San Jose, CA 95133 <br /> :Attention: Jinn Keller Work Order#: 9608E72 -01-04. 06 Reported: Sep 5, 1996 ri <br /> :.,..,:Y' <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> GC Batch#: GC082896BTEX2IA GCW2896BTEX21A GC082896BTIX21A GC082896BTEX21A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: D.Jima D.Jirsa D.Jima D.Jirsa <br /> MS/MSD #: 9608A7202 9608A7202 9608A7202 950BA7202 <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 8/28/96 8/28/96 8/28/96 8/28/96 <br /> Analyzed Date: 8/28/96 8/28/96 8/28/96 8/28/96 <br /> Instrument I.D.#: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Conc. Spiked: ioug/L 10jug/L 10pg/L 30ug/L <br /> Result: 11 10 11 32 <br /> MS %Recovery: 110 100 110 107 <br /> Dup. Result: 11 11 11 33 <br /> MSD % Recov.: 110 110 110 110 <br /> RPD: 0.0 9.5 0.0 3.1 <br /> RPD Limit: 0-25 0-25 0-25 0.25 <br /> :::a <br /> =yiS•:i:'ii:':`-:`-i� i:i:<?ii:. <br /> LCS#: BLK082896 BLK082896 BLK082896 BLK082896 <br /> Prepared Date: 8/28/96 8/28/96 8/28/96 8/28/96 <br /> Analyzed Date: 8/28/96 8/28/96 8/28/96 8/28/96 <br /> Instrument I.D.#: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Conc. Spiked: 10 pg/L 10 pg/L 10 pg/L 30 pg/L <br /> LCS Result: 10 9.9 10 30 <br /> LCS %Recov.: 100 99 100 100 <br /> 60-140 60-140 60-140 60-140 <br /> LCS 70-130 70-130 70-130 70-130 <br /> Control Limits <br /> Please Note: <br /> The LCS is a control sample of known,Interferent-free matrix that is analyzed using the same reagents, <br /> OI ANALYTICAL preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure. If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch. <br /> roject Manager '*MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9608E72.BLA <11> <br />