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j 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 8 t 9 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine tech $eivices, Inc "s ~Client Prolect ID Chevron 9-8264 970107-22 <br /> 1680 Rogers Avenue Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9701261-01-04 Reported Jan 16, 1997 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Diesel <br /> QC Batch#: 000109970HBPEXZ <br /> Analy Method' EPA 8015M <br /> Prep. Method' EPA 3520 <br /> Analyst J Minkel <br /> MS/MSD#. 970125601 <br /> Sample Conc . N D <br /> Prepared Date: 1/9/97 <br /> Analyzed Date: 1/10/97 <br /> Instrument I D #: GCHP5 <br /> Conic Spiked: 1000lrg/L <br /> Result: 1300 <br /> MS % Recovery* 130 <br /> Dup. Result 1300 <br /> MSD % Recov : 130 <br /> RPD: 00 <br /> RPD Limit. 0-50 <br /> LCS# BLK010997 <br /> Prepared Date: 1/9/97 <br /> Analyzed Date: 1/10/97 <br /> Instrument I D #: GCHP5 <br /> Conc. Spiked 10Dopg/L <br /> LCS Result. 720 <br /> LCS % Recov : 72 <br /> 50-150 <br /> LCS 60-140 <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 />.Crr <br /> U I ANALYTICAL 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 M <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 /> y Penne <br /> ct Manag **MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference 9701261 BLA <6> <br />