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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 /> �Il,� Analytical 819 Striker Avenue,Suite B Sacramento, CA 95834 (916) 921.9600 FAX(916)921-0100 <br /> Yr.......:v......:.:.......... <br /> ..... h................. <br /> r 4::::....}.•:x::x:::,::x_:::.�::::n::..::::x.•.�:::v:.:v.::::::::x.::r.x:l..::.......r...nv:::::::......... ........rv...x.........::.v...x..:::•}.:.:::::::::.:v::: }:.'� <br /> !Blaine Tech Services, Inc. Client Project ID: Chevron 9-0557/960507-W3 r <br /> `;985 Timothy Drive Matrix: Liquid <br /> ;1'iSan Jose, CA 95133 <br /> %«2 <br /> {?Attention: Jim Keller Work Order#: 9605599-02, 05 Reported: ayv <br /> M 20, 1 996-'}:<. <br /> .,. .... ....... .............................................. v::.�:::.:�:.r:.r-:r:::r..::.r,-....:.,-.:r:.r-::.•::::..:x•x:•:.;-:r:.ti.}:x.}:•?:.:•-.._.::.......:..:..::...::.:.:%:::}..:.:..:?:`'o::o:.x>:^:i:;:y%;; ' <br /> :k n.n rv.xx:'is:]:iii::.:i.:::..:...v:x.....n...-......:...........:...............:..n...v..r.::...:....r..:.........._............:.........i...v..........:....... <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch#: GCO51496BTEX21A G0051496BTEX21A GC051496BTEX21A GCO51496BTEX21A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Pre . Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: J.Woo J.Woo J.Woo J.Woo <br /> MS/MSD#: 960517901 960517901 960517901 960517901 <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 5/14/96 5/14/96 5/14/96 5/14/96 <br /> Analyzed Date: 5/14/95 5/14/96 5/14/96 5/14/96 <br /> Instrument I.D.#: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Conc. Spiked: 10pg/L 10pg/L 10pg/L 30pg/L <br /> Result: 13 13 13 41 <br /> MS %Recovery: 130 130 130 137 <br /> Dup. Result: 12 12 11 35 � <br /> MSD%Recov.: 120 120 110 117 <br /> i <br /> RPD: 8.0 8.0 17 16 <br /> RPD Limit: 0-25 0-25 0-25 0-25 <br /> xh:.:s...::::....,:.x:..::.::.:....................:.......... :x.:::::..... <br /> ...:............r.... C}i::ti i::v:r:'�...........:...... .v.-x...................v....x•..... <br /> ..r..... <br /> LCS#: BLK051496 BLK051496 BLK051496 BLK051496 <br /> Prepared Date: 5/14/96 5/14/96 5/14/96 5/14/96 <br /> Analyzed Date: 5/14/96 5/14/96 5/14/96 5/14/96 <br /> Instrument I.D.#: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Conc.Spiked: 10pg/L 10pg/L 101ig/L 30pg/L <br /> LCS Result: 13 13 13 39 <br /> LCS% Recov.: 130 130 130 130 <br /> MS MSD 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 />. ZjecManager <br /> ALYTICAL 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 /> **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9605599.BLA 42> <br />