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Sequoia680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (5t0) 988-9600 FAX(510) 988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921.0100 <br /> Iwo <br /> _ ... <br /> ........................................................... .. <br /> :r:Cambria Client Project 10' She� <br /> 11126TCount�rYCl�ubBlvd.�»::;..........................................................................:.......................................................................... <br /> 270 Perkins Ave. Matrix: Solid <br /> "Sonoma, CA 95476 <br /> <'Attention: Joe Neely Work Order#: 9802F61-05-10 Reported: Mar 11, 1998;:;: <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: MTBE <br /> QC Batch#: MS022598MTBEEXA <br /> Analy. Method: EPA 8260 <br /> Prep. Method: N.A- <br /> Analyst: S.Pitamah <br /> MS/MSD#: 9802F6505 <br /> Sample Conc.: N.D. <br /> Prepared Date: 2/25/98 <br /> Analyzed Date: 2/25/98 <br /> Instrument I.D.#: F3 <br /> Conc. Spiked: 2500 pg/Kg <br /> Result: 1700 <br /> MS % Recovery: 68 <br /> Dup. Result: 1700 <br /> MSD % Recov.: 68 <br /> RPD: 0.0 <br /> RPD Limit: 0-25 <br /> LCS#: LCS022598 <br /> Prepared Date: 2/25/98 <br /> Analyzed Date: 2/25/98 <br /> Instrument I.D.#: F3 <br /> Conc. Spiked: 2500 pg/Kg <br /> LCS Result: 2000 <br /> LCS %Recov.: 80 <br /> 60-140 <br /> 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 /> /SEQU0 LYTICAL preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br /> O <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 matrixinterference,the LCS recovery is to be used to validate the batch. <br /> oject Manager *"MS=Matrix Spike, MSD=MS Duplicate, RPO=Relative%Difference 9802F61.000 <3> <br /> mac' <br />