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Sequoia 4580 Chesapeake Drive Redwood City,CA 940*415) 364-9600 FAX(4�5) 364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(5 0)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> TAW <br /> ............. g,- .. <br /> ..............—..... ...... <br /> Wei'n*felder CIlentPie6jectID: 20-3978-01/VVR6/8fpr6&k16S <br /> 2825 East Myrtle St. Matrix: Soil <br /> Stockton, CA 95205 <br /> Attention: Tony Martin OC Sample Group: 7010356A-57A, 59A-62A Reported: Jan 17, 1997-b <br /> "x c,- <br /> X, <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Diesel <br /> Method: DHS Luft <br /> Analyst: C. Lee <br /> Concentration <br /> Spiked: 9.5 mg/kg <br /> LCS Batch#: LCS011597 <br /> Date Prepared: 01/15/97 <br /> Date Analyzed: 01/15/97 <br /> Instrument I.D.#: GCHP-3B <br /> LCS % <br /> Recovery: 98 <br /> Control Limits: 60-140 <br /> 'o <br /> MS/MSD <br /> Batch#: 7010346 <br /> Date Prepared: 01/15/97 <br /> Date Analyzed: 01/15/97 <br /> Instrument I.D.#: GCHP-3B <br /> Matrix Spike <br /> % Recovery: 82 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 86 <br /> Relative% <br /> Difference: 4.8 <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 OC limits for MS/MSD's are advisory only <br /> and are not used to accept or reject batch results. <br /> Edana M. BeIschner <br /> Project Manager/Sacramento Laboratory <br /> 7010356A.KLF <2> <br /> DO% <br />