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„ <br /> Sequoia 680 Chesapeake Drive Redwood Ciry,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)92 1-0100 <br /> i <br /> Blaine Tech Services, Inc 'Client Project ID Chevron 9-8632/960207-Z4 <br /> ;,985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> 'Attention Jim Keller Work Order# 9602583-05 Reported Feb 27} 1996} <br /> QUALITY CONTROL DATA REPORT <br /> Analyte. Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch# GCO21396BTEX07A GCO21396BTEX07A GCO21396BTEX07A GCO21396BTEX07A <br /> Analy. Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst D Jirsa D Jirsa D Jirsa D Jirsa <br /> MS/MSD # 960265405 960265405 960265405 960265405 <br /> Sample Conc N D N D N D N D <br /> Prepared Date 2/13/96 2/13/96 2/13/96 2/13/96 <br /> Analyzed Date 2/13/96 2/13/96 2/13/96 2/13/96 <br /> Instrument I D # GCHP7 GCHP7 GCHP7 GCHP7 <br /> Conc Spiked. 10ug/L 10ug/L 10ug/L 30ug/L <br /> Result 11 11 11 33 <br />. MS % Recovery 110 110 110 110 <br /> Dup Result* 11 11 11 33 <br /> MSD %Recov .. 110 110 110 110 <br /> RPD 00 00 00 00 <br /> RPD Limit 0-50 0-50 0-50 0-50 <br /> LCS # BLK021396 BLK021396 BLK021396 BLK021396 <br /> Prepared Date 2/13/96 2/13/96 2/13/96 2/13/96 <br /> Analyzed Date. 2/13/96 2/13/96 2/13/96 2/13/96 <br /> Instrument I D # GCHP7 GCHP7 GCHP7 GCHP7 <br /> Conc Spiked. 10ug/L 10ug/L 10ug/L 30ug/L <br /> LCS Result: 97 96 95 30 <br /> LCS %Recov.: 97 96 95 100 <br /> IVIS/MSD <br /> LCS 70-130 70.130 70-130 70-130 <br /> Control Limits <br /> Please Note <br /> lynneThe LCS is a control sample of known,interferent free matrix that 1s analyzed using the same reagents, <br /> r <br /> 6AN YTICAL 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 /> ager **MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative%Difference 9602583 BLA <4> <br />