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Sequoia 680 Chesapeake Drive Redwood City.CA 94063 (650)364-9600 FAX(650) 364-9233 j <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 i <br /> Analytical 819 Striker Avenue,Suite B Sacramento.CA 95834' (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd.North,Ste. D Petaluma,CA 94954 (707)792-1865 FAX(707)79Z-0342 <br /> 1551 Industrial Road San Carlos, CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> :., . <br /> Blaine Tech Services, Inca . Client Project Ip Shell, 2575 Country Club Blvd. <br /> 1680 Rogers Ave. Matrix: Liquid <br /> ;:`San Jose, CA 95112 <br /> Attention: Fran Thie Work Order#: 9901 E86 -01-06; 9901 E87-01-06; Reported: Feb 19, 1999::, <br /> -.. .......... ..... ..... . ... <br /> I <br /> 9901 E88-01-06, 9901 E89-01-04 <br /> i <br /> QUALITY CONTROL DATA REPORT <br /> G <br /> Analyte: MTBE <br /> QC Batch#: MS021099826OS2A <br /> Anally. Method: EPA 6260 <br /> Prep. Method: EPA 5030 <br /> ) <br /> Analyst: N.Nelson <br /> MS/MSD#: 9020375 <br /> Sample Cone.: N.D. <br /> Prepared Date: 2/10/99 <br /> Analyzed Date: 2/10/99 <br /> Instrument I.D.#: GCMS2 <br /> Cone. Spiked: 50ug/L <br /> Result: 61 <br /> MS % Recovery: 122 <br /> Dup. Result: 63 <br /> MSD % Recov.: 126 <br /> I <br /> RPD: 3.2 I <br /> RPD Limit: 0-25 <br /> i <br /> a. ::... <br /> LCS #: LCS021099 <br /> Prepared Date: 2/10/99 <br /> Analyzed Date: 2/10/99 <br /> Instrument I.D.#: GCMS2 <br /> Cone. Spiked: 50ug/L <br /> c <br /> LCS Result: 58 <br /> LCS % Recov.: 116 <br /> 60-140 <br /> LCS 70-130 <br /> Control Limits ] <br /> i <br /> I <br /> Please Note: <br /> SEQUOIA ANALYTICAL The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> ap#1271 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 /> Ka Kim <br /> r <br /> Pr jeCt Manager **MIS=Matrix Spike,MSD=MS Duplicate, RPD=Relative%Difference 9901E86.BLA <1> <br /> i <br />