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'I <br /> Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd.North,Ste.D Petaluma.CA 94954 (707)792-1865 FAX(707)79Z-0342 <br /> ................. <br /> so"ciates, Inc. <br /> ATC AS Client ProjectInland Paint 17295.0001 <br /> Graphics Drive Matrix: Liquid <br /> Modesto, CA 95351-1502 <br /> "Attention: Drew Van Allen Work Order#: 9809C78 01-03 Reported: Oct 1, 199 <br /> . . ..... <br /> ................ <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: MTBE <br /> QC Batch#: MS092298MTE3EH6A <br /> Analy. Method: EPA 8260 <br /> Prep. Method: <br /> Analyst: B. Pitamah <br /> MS/MSD #: 980919409 <br /> Sample Cone.: 67 <br /> Prepared Date: 9/22/98 <br /> Analyzed Date: 9/22/98 <br /> Instrument I.D.#: H6 <br /> Cone. Spiked: 50 pg/L <br /> Result: 118 <br /> MS %Recovery: 102 <br /> Dup. Result: 119 <br /> MSD % Recov.: 104 <br /> RPD: 0.84 <br /> RPD Limit: 0-25 <br /> ......................................... ........... <br /> ..... <br /> ............................ ........ <br /> ............ <br /> NX: <br /> ................................... <br /> ............. ........... <br /> ......... ....... ...................... ....................... <br /> ..................... ............... <br /> .................................. <br /> LCS#: LCS092398 <br /> Prepared Date: 9/23/98 <br /> Analyzed Date: 9/23/98 <br /> Instrument I-D.#: H6 <br /> Cone. Spiked: 50 Mg/L <br /> LCS Result: 40 <br /> LCS % Recov.: 80 <br /> MS/MSD 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 /> SEQUOIA ANALYTICAL 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. 11 <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 /> i <br /> Ka myai <br /> Project Mana er er MS=Matrix Spike,MSO=MS Duplicate,RPD=Relative%Difference 9809G78.AAA <1> <br />