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Sequoia 680 Chesapeake Drive Redwood City.CA 94063 (650) 364-9600 -AX(650) 364-9233 <br /> 404 N.WlSet Lane Walnut Creek.CA 94598 (925)988-9600 =AX(925)988.9673 <br /> Analytical 819 Striker Avenue.Suite 8 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)792-0342 <br /> U pgradient Environmental Client Project 10: Kwikee Foods <br /> 01 <br /> 336 Augusta Court <br /> Valley Spring, CA 95252 <br /> ",.'Attention: Vic Cherven <br /> QC Sample Group: 5808255 Reported: Sep 25, 1998 <br /> .......... <br /> QUALITY CONTROL DATA REPORT <br /> ANA <br /> MTBE <br /> Method: EPA 8260 <br /> Analyst: N. Nelson <br /> Concentration <br /> Spiked: 50 jug/L <br /> LCS Batch#: LCS090898A <br /> Date Prepared: 09/08/98 <br /> Date Analyzed: 09/08/98 <br /> Instrument I.D.#., GO/MS-2 <br /> LCS% <br /> Recovery: 98 <br /> con2roi U-ni2s: 65-135% <br /> a:L... ..... . <br /> MS/MSD <br /> Batch#: 8090532 <br /> Date Prepared: 09/08/98 <br /> Date Analyzed: 09/08/98 <br /> Instrument I.D.#: GC/MS-2 <br /> Matrix Spike <br /> % Recovery: 116 <br /> Matrix Spike <br /> Duplicate % <br /> Recovery: 120 <br /> Relative% <br /> Difference: 3.4 <br /> Please Note: <br /> The LCS is a control sample of known,interterentiree matrix that is analyzed using tie same reagents, <br /> SEQIA ANALYTICAL preparation and analytical methods employed for the samples. The LCS%recovery data is used for <br /> W <br /> validation of sample batch results. Due to matrix effects,the OC limits for MS/MSD':,are advisory only <br /> and are not used to accept or reject batch results. <br /> Linda C. Sc nelder <br /> Project Manager/Sacramento Laboratory <br /> ILI <br /> S808255.UES <4> <br /> ou <br />