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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> X117 Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> ir{}}}x Jw vu rr;wy xm��fir. v. -0w nV urgm r` +w ti{ate a{n tt]rv,rv�+;ty Lv!`v , 4,*, +rvJ*1 x ` !^t r rry v • r rwr r ^` ?,ry n r v v nsv nm{+ixivr ] n•~✓ `• ' <br /> Y �k J'ir'-nw `x '7.r SM1r SQA,n ,JtWr+'+-u ]JC tt'r + wr yrrc <br /> Blame Tech Services, Inc Client Project ID Shell, Stockton/960515TlA <br /> .1985 Timothy Drive Matrix Liquid n <br /> ;San Jose, CA 95133 <br /> �,Attentlan Jim Keller Work Order# 9605C67-12 v Reported May 29,1 1996 <br /> cJ s A..,.a,oirrr , r'Yr,.,,.,,, r .r rr r.wr 4{`.,., r rr rwr r•ry <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch#: GCO52296BTEX21A GCO52296BTEX21A GCO52296BTEX21A GCO52296BTEX21A <br /> Analy Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst. J Woo J Woo J Woo J Woo <br /> MS/MSD#. 9605A6004 9605A6004 9605AS004 9605A6004 <br /> Sample Conc.: N D N D N D N D <br /> Prepared Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Analyzed Date' 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Instrument I.D.#: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Conc. Spiked: 10ug/L 10vg/L 10pg/L 30Yg/L <br /> Result' 11 11 98 30 <br /> OMS %Recovery. 110 110 98 100 <br /> Dup. Result: 11 11 10 31 <br /> MSD %Recov.: 110 110 100 103 <br /> RPD: 00 00 20 33 <br /> RPD Limit: 0-25 0-25 0-25 0-25 <br /> Jnr rr♦ »3rOSr uti\vtJ nn-n•,+- ♦ rn ,n i ' n 4r 4 h rvv. r rrti x, +, <br /> LCS#: BLK052296 BLK052296 BLK052296 BLK052296 <br /> Prepared Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Analyzed Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Instrument I.D.#: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Conc. Spiked: 10 pg/L 10 pg/L 10 vg/L 30 Ng/L <br /> LCS Result: 12 11 11 33 <br /> LCS% Recov.: 120 110 110 110 <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 /> ea <br /> LYTICAL 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 withm specified control 11mds due to matrix <br /> rference,the LCS recovery is to be used to validate the batch <br /> eager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9605067 BLA a5> <br />