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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> (D— 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 9-8264/970207-H2 v <br /> 1680 Rogers Avenue Matrix Liquid ° <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 97025200-01-04 Reported Feb 26, 1997 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Diesel <br /> QC Batch#: GCO219970HBPEXA <br /> Analy. Method: EPA 8015M <br /> Prep Method: EPA 3510 <br /> Analyst. B Sullivan <br /> MS/MSD#. 970281901 <br /> Sample Cone : N D <br /> Prepared Date: 2/19/97 <br /> Analyzed Date, 2/20/97 <br /> Instrument I D #. GCHP4B <br /> Conc Spiked. 1000ug/L <br /> Result 950 <br /> MS % Recovery. 95 <br /> Dup. Result 1100 <br /> MSD % Recov 110 <br /> RPD 150 <br /> RPD Limit 0-50 <br /> LCS# BLK021997 <br /> Prepared Date 2/19/97 <br /> Analyzed Date. 2/20/97 <br /> Instrument I D #: GCHP4B <br /> Conc. Spiked: 1000Ng/L <br /> LCS Result: 870 <br /> LCS % Recov : 87 <br /> MSIMSD 50-150 <br /> LCS 80-140 <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 /> U IA 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 /> eg e r <br /> of c Manager **MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative%Difference 9702520 BLA <$> <br />