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`G) Sequoia 680 Chesapeake Dnve 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)921 0100 <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-8632/950907-Ki <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> ,Attention Jim Keller Work Order# 9509502-01-06 Reported Sep 19, 1995, <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Diesel <br /> OC Batch#. GC0914950HBPEXZ <br /> Analy Method EPAS015M <br /> Prep. Method EPA 3520 <br /> Analyst N Herrera <br /> MS/MSD # 950950201 <br /> Sample Conc 370 <br /> Prepared Date. 9/14/95 <br /> Analyzed Date 9/16/95 <br /> Instrument I D # GCHP4 <br /> Conc Spiked 1000 Erg/L <br /> Result 1200 <br /> MS % Recovery 83 <br /> Dup. Result 1100 <br /> MSD % Recov 73 <br /> RPD 87 <br /> RPD Limit 0_50 <br /> LCS # BLK091495 <br /> Prepared Date 9/14/95 <br /> Analyzed Date 9/16/95 <br /> Instrument LD # GCHP4 <br /> Conc Spiked 1000pg/L <br /> LCS Result: 1100 <br /> LCS%Recov : 110 <br /> MS/MSty <br /> LCS 3s-122 <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 /> rroject <br /> 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 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 /> er <br /> ger **MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative%Difference 9509502 SLA <4> <br />