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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 4 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (516) 988-9600 r-FAX(516)988-9673 <br /> 916 921-9600 FAX(9l6)921-0100 <br /> ` �a�_�,y-���1 8 1 Striker Avenue,Suite 8 Sacramento,CA 95834 { ) * . <br /> H C4 Y 1 <br /> ti I' <br /> ................. <br /> . <br /> CambriaClient Project 1D. shell 1267 Country Club Road <br /> `270 Perkins Avenue Matrix: Liquid <br /> Sonoma, CA 95476 <br /> Reported: Mar 5, 1998"X. <br /> . <br /> >: Work Order#: 9802055-04,05 P..............:::'.:.::.::.::::::::::.::::::.:::::. <br /> :<. ttentlan. Joe Neel ........................................................ <br /> A Y ::::..................:::. <br /> :.: :::.:............::::.-.:::.:::.. ............................................. <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: MTBE �. <br /> QC Batch#: MS022498MTBEH6A J <br /> Analy. Method: EPA 8260 r .f <br /> Prep. Method: N.A. ' <br /> Analyst: L Duong # <br /> i <br /> MS/MSD#: 9802D5503 . <br /> Sample Conc.: N.D. <br /> Prepared Date: 2/24/98 <br /> Analyzed Date: 2/24/98 <br /> Instrument I.D.#: F3 <br /> Conc. Spiked: 50 fig/L a <br /> Result: 57 <br /> MS % Recovery: 114 <br /> Dup. Result: 57 4 <br /> MSD % Recov.: 114 �. <br /> RPD: 0.0 <br /> RPD Limit: 0-25 <br /> I <br /> LCS#: LCS022498 <br /> Prepared Date: 2/24/98 <br /> Analyzed Date: 2/24/98 t 3 <br /> Instrument I.D.#: F3 " <br /> Conc. Spiked: 50,ug/L <br /> LCS Result: 55 ' <br /> LCS % Recov.: 110 <br /> 60-140 <br /> F LCS 70-130 <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 /> SEQUOIA 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. k y <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 /> egory <br /> o ect Manager **MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative W Difference 9802D55.CCC <5> <br />