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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N W,get Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> ID II,7 Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> V*� S,$ $i 4 ' v x v „r rr`r }r � `hin r•v W, <br /> Blaine Tech Services, Inc H Client Project ID Chevron 9-1918/960424-A2 <br /> -,,985 Timothy Drive Matrix Liquid <br /> :San Jose, CA 95133 <br /> `!Attention Jim Keller Work Order# 9604192-01-02 Reported May 15, 1996'1 <br /> °v..n vb`rda:.$,Y4 whb ,. �sx•>`r v.arr ,.,. . ,. r,.r.. va ,.. ..,bc� <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Nitrate <br /> QC Batch# IN0506963000ACA <br /> Analy. Method EPA 300 0 <br /> Prep. Method: N/A <br /> Analyst S Lee <br /> MS/MSD# 9604F9001 <br /> Sample Conc : N D <br /> Prepared Date 5/6/96 <br /> Analyzed Date 5/6/96 <br /> Instrument I D# INIC1 <br /> Cone Spiked 10 mg/L <br /> Result 88 <br /> MS%Recovery 88 <br /> Dup. Result: 95 <br /> MSD%Recov: 95 <br /> RPD 76 <br /> RPD Limit, 0-20 <br /> LCS#: LCS050696 <br /> Prepared Date 5/6/96 <br /> Analyzed Date' 5/6/96 <br /> Instrument 1 D.# INIC1 <br /> Cone.Spiked' 10 mg/L <br /> LCS Result: 10 <br /> LCS %Recov.: 100 <br /> 75-125 <br /> LCS 80-120 <br /> Control Limits <br /> Please Note <br /> JIAeeThe LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <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 wfthin specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> anager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9604192 SLA <3> <br />