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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 /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> nBlaine Tech Services, Inc Client Project ID Chevron 9-2033/960515-A1 <br /> ~985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> `Attention Jim Keller Work Order# 9605C37-03 Reported May 29, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte. Diesel <br /> OC Batch#. GC0521960HBPEXZ <br /> Anally, Method: EPA S015M <br /> Prep Method: EPA 3520 <br /> Analyst J Minkel <br /> MS/MSD# 960584721 <br /> Sample Cone 1100 <br /> Prepared Date 5/21/95 <br /> Analyzed Date 5/22/96 <br /> Instrument I.D.#: GCHP5 <br /> Cone. Spiked: 1000 vg/L <br /> Result 1900 <br /> 0 MS%Recovery. so <br /> Dup. Result: 1700 <br /> MSD%Recov.: 153-0 <br /> RPD 11 <br /> RPD Limit* 0-50 <br /> Z <br /> , <br /> LCS# BLK052196 <br /> Prepared Date 5/21/96 <br /> Analyzed Date: 5/22/96 <br /> Instrument I.D.#: GCHP5 <br /> Cone. Spiked: 1000pg/L <br /> LCS Result. 770 <br /> LCS%Recov. 77 <br /> 50-150 <br /> LCS 60-140 <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 /> ANALYTICAL_ preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> ffortified 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 /> eg ct Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9605037 BLA <4> <br />