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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 /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)92 1-0100 <br /> m m- ix=rf ir i^'navJ.c�n uu�n. A Sv Yn w. o4x ny r}t{r }vv. r rr xn r r.v rr�rr rSvn rMv}na}vr..9,•`Y45 <br /> ' E3laineTech Services, Inc"r N Client Project ID r A Shell,rStockton/r960516-A1w <br /> 985 Timothy Dave Matrix Liquidt <br /> O <br /> ,nSan Jose, CA 95133 <br /> �,tAttention Jim Keller Work Order# 9605069 -01 Reported May 29, 1996 <br /> rnJ t 4 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch#: GC052296BTEX02A GCO52296BTEX02A GCO52296BTEX02A GCO52296BTEX02A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prop. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: J woo J Woo J Woo J Woo <br /> MS/MSD#: 9605A8004 960SA6004 9605A6004 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 l.D.#: GCHP2 GCHP2 GCHP2 GCHP2 <br /> Cone. Spiked: 10Yg/L 10pg/L 10pg/L 30lig/L <br /> Result: 88 89 89 24 <br /> MS % Recovery: 88 89 89 so <br /> Dup. Result: 88 89 88 26 <br /> MSD%Recov.: 88 89 88 87 <br /> RPD: 00 00 11 80 <br /> RPD Limit: 0-25 0-25 0-25 0-25 <br /> r ♦}F }r 4ry n .. v rt r {. r rn r r i v r r r ♦ t r t LL r r r r ry <br /> tv LuJo w M1}vn vrrym rn+'w t•+ { ry + r ti v ' vrw rr ` ` r v r titer ` r vv n n wv r + + xu v}+ <br /> LCS #: BLK052296 BLK0522% 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.#: GCHP2 GCHP2 GCHP2 GCHP2 <br /> Cone. Spiked: 10ug/L 10pg/L 10frg/L 30Etg/L <br /> LCS Result 93 94 95 29 <br /> LCS % Recov 93 94 95 97 <br /> MS/IVISD 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 /> jyerlrier <br /> 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 /> P <br /> oleo Manager "'MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference 9605069 BLA <1> <br />