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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 /> INIW Analytical 819 Stnker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916) 921 0100 <br /> Blayne Tech Services, Inc Client Project ID Chevron 9-8632/950907-K1 <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order # 9509502-05 Reported Sep 19, 1995 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch# GCO914513TEX02A GCO91295BTEX02A GC091295BTEX02A GCO912958TEX02A <br /> Analy Method. EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst J Minkel J Minkel J Minkel J Minkel <br /> MS/MSD # 950903410 950903410 950903410 950903410 <br /> Sample Cone N D N D N D N D <br /> Prepared Date 9/12/95 9/12/95 9/12/95 9/12/95 <br /> Analyzed Date 9/12/95 9/12/95 9/12/95 9/12/95 <br /> Instrument LD # GCHP2 GCHP2 GCHP2 GCHP2 <br /> Cone Spiked 10Ng/L 10yg/L 10Ng/L 30pg/L <br /> Result 97 97 98 29 <br /> MS % Recovery 97 97 98 97 <br /> Dup Result 97 96 97 29 <br /> MSD % Recov 97 96 97 97 <br /> RPD 00 10 10 00 <br /> RPD Limit 0-50 0-50 0-50 0-50 <br /> LCS# - - - - <br /> Prepared Date - <br /> Analyzed Date - - - <br /> Instrument I D # - - - <br /> Cone Spiked - - - <br /> LCS Result - <br /> LCS % Recov .. - - <br /> LCS 71-133 72-128 72-130 71-120 <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 /> S ALYTICAL 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 H <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 Penner <br /> Project Manager =*MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9509502 BLA a2> <br />