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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364.9600 FAX (415) 564-9233 <br /> 404 N. Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX (510)988-9673 <br /> mil Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX (916) 921-0100 <br /> ::Blaine Tech Services, Enc. Client Project ID: Chevron 9-0557, 950516-132 <br /> 985 Timothy Drive Matrix: Liquid <br /> ��`San Jose, CA 95133 <br /> Attention: Jim KelEer Work Order#: 9505C22-06 Reported: May 30 <br /> .L,--,,��,.�,�,�,�,�,�,�,�,�,�,�,�,�.............. ... . ........................ <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> GC Batch#: GCO52495BTEX03A GC052495BTEX03A G0052495BTEX03A GC,052495BTEX03A <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.Minkel J. Minkel J.Minkel J. Minkel <br /> IVIS/MSD#: 950597502 950597502 950597502 950597502 <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 5/24/95 5/24/95 5/24/95 5/24/95 <br /> Analyzed Date: 5/24/95 5/24/95 5/24/95 5/24/95 <br /> Instrument I.D.#: GCHP3 GCHP3 GCHP3 GCHP3 <br /> Conc. Spiked: 10pg/L 10pg/L 10jug/L 30 pg/L <br /> Result: 11 12 12 35 <br /> MS%Recovery: 110 120 120 117 <br /> Dup. Result: 5.0 7.7 8.1 25 <br /> MSD% Recov.: so 77 81 83 <br /> RPD: 75 44 39 33 <br /> RPD Limit: 0-50 0-50 0-50 0-50 <br /> E <br /> H <br /> LCS#: BLK052495 BLK052495 BLK052495 BLK052495 <br /> Prepared Date: 5/24/95 5/24/95 5/24/95 5/24/95 <br /> Analyzed Date: 5/24/95 5/24/95 5/24/95 5/24/95 <br /> Instrument I.D.#: GCHP3 GCHP3 GCHP3 GCHP3 <br /> Conc. Spiked: 10 pg/L 10pg/L 10pg/L 30 pg/L <br /> LCS Result: 11 11 11 34 <br /> LCS%Recov.: 110 110 110 113 <br /> MS/MSD <br /> LCS 71-133 72-128 72-130 71-120 <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 /> SE NALYTICAL 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. 0 <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> XPeenni interference,the LCS recovery Is to be used to validate the batch. <br /> . _ �nne <br /> Project Manager MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9505C22.BLA e-4> <br /> ;9� <br />