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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX (650)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)921.0100 <br /> .............. ....... .......... . .. ....... <br /> .............. <br /> ................... ......... .......... <br /> .................................. <br /> - <br /> '..�.:Blaine Tech Servic6s,'fln-ic. Client Proje6t lb.' Chevron 9-8632 /971lig-M2 <br /> X <br /> 1680 Rogers Ave. Matrix: Liquid <br /> ::San Jose, CA 95112 <br /> ..'Attention: Fran Thie Work Order#: 9711065-01-05 Reported: Dec 10, 11997...:. <br /> ............ <br /> .......... <br /> ................. <br /> . ........... <br /> .................... .. <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: MTBE <br /> OC Batch#: MS120197MTBEH6A <br /> Analy. Method: EPA 8260 <br /> Prep. Method: N.A. <br /> Analyst: L. Duong <br /> MS/MSD #: 9711A7705 <br /> Sample Cone.: N.D. <br /> Prepared Date: 12/1/97 <br /> Analyzed Date: 12/1/97 <br /> Instrument I.D.#: H6 <br /> Cone, Spiked: 50pg/L <br /> Result: 52 <br /> MS % Recovery: 104 <br /> C) Dup. Result: 55 <br /> MSD % Recov.: 110 <br /> RPD: 5.6 <br /> RPD Limit: 0-25 <br /> LCS #: LCS120197 <br /> Prepared Date: 12/1/97 <br /> Analyzed Date: 12/1/97 <br /> Instrument I.D.#: H6 <br /> Cone. Spiked: 50 pg/L <br /> LCS Result: 49 <br /> LCS % Recov.: 98 <br /> MS/M-SD 60-140 <br /> LCS 70-130 <br /> Control Limits <br /> Please Note: <br /> The LOS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> CSE LYTICAL preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br /> 11't p <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 /> Peg enner -interference,the LOS recovery is to be used to validate the batch, <br /> , " r <br /> Project Manage, MS Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 971IC65.BLA <6> <br />