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680 Chesapeake Drive Redwood City,CA 9406.. (650) 364-9600 FAX(650)364-9233 <br /> Walnut Creek,CA 94598 (510) 988-9600 FAX(516)988.9673 <br /> Sequoia 404 N.Wiget Lane <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921.9600 FAX(916)921.0100 <br /> Upgradient Environmental Client Project 1D: Kwikee Foods <br /> P.O. Box 8002 Matrix: Soil <br /> Stockton, CA 95208 <br /> r Attention: Vic Cherven QC Sample Group: S805175 Reported Jun 5, 1998 <br /> QUAL5TY CONTROL DATA REPORT <br /> ANALYTE <br /> Methanol Methanol <br /> Method: iSHS ISHS <br /> Analyst: T.S. T.S. <br /> Concentration <br /> Spiked: 8.0 mg/kg 8.0 mg/kg <br /> LCS Batch#: ISBLK ISBLK <br /> 052198/SPK 052298/SPK <br /> Date Prepared: 05/21/98 05/22/98 <br /> Date Analyzed: 05/21/98 05/22/98 <br /> Instrument I.D.#: GCV-01 GCV-01 <br /> LCS <br /> Recovery: 98 81 <br /> Control Limits: 70-130% 70-130% <br /> MS/MSD <br /> Batch #: IS9805467-01 IS9805467-01 <br /> Date Prepared: 05/21/98 05/21/98 <br /> Date Analyzed: 05/21/98 05/21/98 <br /> Instrument I.D.#: GCV-01 GCV-01 <br /> Matrix Spike <br /> % Recovery: 109 109 <br /> Matrix Spike <br /> Duplicate % <br /> Recovery: 108 108 <br /> Relative % <br /> Difference: 1.2 1.2 <br /> Please ote: <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> SEQU IA ANALYTI AL preparation and analytical methods employed for the samples. The LCS%recovery data is used Eor <br /> validation of sample batch results. Due to matrix effects,the QC limits for MS/MSD's are advisory on1Y <br /> /�� and are not used to accept or reject batch results. <br /> n a C. Sc neider <br /> Project Manager/Sacramento Laboratory <br /> S805175.UBS -5> <br />