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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364-9600 FAX(415)364-9233 <br /> 404 N.Wiget Une Walnut Creek,CA 94598 (510) 988-9600 FAX Ism 9$a-9673 <br /> %70119 Striker Avenue,Suite 8 Sacnarncnto,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> Analytical <br /> ............... <br /> I-Keinfed er <br /> tri66tProlectlt): 203978Z1. S <br /> 2825 East Myrtle St. Matrix: Soil/Water <br /> Stockton, CA 95205 <br /> Attention: Tony Martin QC Sample Group: 7090550A-52A Reported: Sep 25, 1997- <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Methanol Methanol <br /> Method: ISHS ISHS <br /> Analyst: T.Tran T.Tran <br /> Concentration <br /> Spiked: 8.0 mg/L 8.0 mg/kg <br /> LCS Batch#: LCS092397B LCS092397A <br /> Dale Prepared: 09/23/97 09/23/97 <br /> Date Analyzed: 09/23/97 09/23/97 <br /> Instrument I.D.#: GCV-01 GCV-01 <br /> LCS % <br /> Recovery: 104 104 <br /> Control Limits: 50-150 50-150 <br /> W . ... <br /> 01, <br /> M0 X <br /> MS/MSD <br /> Batch#: 9709777-03 9709073-01 <br /> Date Prepared: 09/22/97 09/23/97 <br /> Date Analyzed: 09/22/97 09/23/97 <br /> Instrument I.D.#: GCV-01 GGV-01 <br /> Matrix Spike <br /> %Recovery: 100 150 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 100 150 <br /> Relative% <br /> Difference: 0.0 0.0 <br /> Please Note: <br /> The LCS Is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> 'EQ IA ANALYTVAL preparation and analytical methods employed for the samples. The LCS%recovery data is used for <br /> validation of sample batch results. Due to matrix effects,the QC limits for MS/MSDs are advisory only <br /> and are not used to accept or react batch results. <br /> inda C. Schneider <br /> Project <br /> roject Manager/Sacramento Laboratory <br /> 70905WA.KLF <4> <br />