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Sequoia U680 Chesapeake Drive Redwood City,CA 9406(415) 364.9600 FAX(415) 364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (51(1) 988-9600: - FAX(510)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)-921-9600 FAX f916)921.otoo <br /> s..........:;:;::�:::::E:'SE:: >`:::'>=:i=........ <br /> ::F:S <br /> pgrad en ``: ale nt project,101 Sneff <br /> `:- 1017 26th St. Matrix: Water <br /> Sacramento, CA 95816 <br /> Attention: Vic Cherven QC Sample Group 5120116-18, 21 Reported: Dec 18, 1995:::' <br /> QUALITY CONTROL DATA REPORT - <br /> ANALYTi= <br /> Diesel Oil&Grease <br /> Method: EPA 8015 M EPA 418.1 <br /> Analyst: C.Lee S.Phillips <br /> Concentration <br /> Spiked: 300 ftg/L 4.0 mg/L <br /> LCS Batch#: LCS120695 LCS121495 <br /> Date Prepared: 12/6/95 12/14/95 <br /> Date Analyzed: 12/6/95 12/14/95 <br /> Instrument I.D.#: GCHP-313 IR-1 <br /> LCS <br /> Recovery: 92 92 <br /> Control Limits: 60-130 80-120 <br /> MS/MSD <br /> Batch#: BS120695 BS121495 <br /> Date Prepared: 12/6/95 12/14/95 <br /> Date Analyzed: 12/6/95 12/14/95 <br /> Instrument I.D.#: GCHP-313 IR-1 <br /> Matrix Spike <br /> %Recovery: 92 92 <br /> Matrix Spike i <br /> Duplicate% <br /> Recovery: 89 88 <br /> Relative% <br /> Difference: 3.3 4.4 i <br /> t <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 LCS%recovery data is used for <br /> validation of sample batch results. Due to matrix effects,the QC limits for.MS/MSD's are advisory only <br /> s and are not used to accept or reject batch results. <br /> 1 <br /> Janet flan <br /> Proje Manager <br /> .5120116.UPS <10> <br />