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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 /> a- ) <br /> Analytical 819 Sinker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> i <br /> Blaine Tech Services, Inc ClientProjectID Chevron 9-8632/960207-Z4 <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> ,,Attention Jim Keller Work Order# 9602583-01-02 Reported Feb 27, 1996' <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Diesel <br /> GC Batch# GCO212960HBPEXZ <br /> Analy Method EPA 8015M <br /> Prep Method EPA 3520 <br /> Analyst B A!1 <br /> MS/MSD # 960258502 <br /> Sample Conc 110 <br /> Prepared Date 2/12/96 <br /> Analyzed Date 2/15/96 <br /> Instrument I D # GCHP5 <br /> Conc Spiked 1000 jig/L <br /> Result 1100 <br /> MS % Recovery 99 <br /> Dup. Result 1100 <br /> MSD % Recov 99 <br /> RPD 00 <br /> RPD Limit 0-50 <br /> LCS # BLK021296 <br /> Prepared Date 2/12/96 <br /> Analyzed Date 2/15/96 <br /> Instrument I D # GCHP5 <br /> Conc Spiked 1000pg/L <br /> LCS Result 950 <br /> LCS % Recov 95 <br /> MS/MS15) <br /> LCS 38-122 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent-tree matrix that is analyzed using the same reagents, <br /> SE N YTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> Ell <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 /> Pe y P&M— r <br /> Project Manager **MS=Matrix Spike,MSD=MS Dupticate, RPD=Relative%Difference 9602583 BLA <5> <br />