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Sequoia1 <br /> 0 Chesapeake Drive Redwood City,CA;94063 Q1 5) 364-9600 FAX(415)364-9233 <br /> Analytical 404 N.Wiget Lane Walnut Creek,CA,94598 (510) 988-9600 FAX(510)988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834: (916) 921-9600 FAX(916)921-0100 <br /> UP9radient..:.. Matrix ro ecf.`. ._.:: .So ll'f5roperty <br /> f <br /> 101 726th St. <br /> Sacramento, CA 95816 <br /> Attention: Vic Cherven QC Sample Group: 511'0292-94 Pe ort <br /> p <br /> ed: Nov 15, 1995<` <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Lindane Heptachlor Aldrin Dieldriri Endrin DDT <br /> y <br /> Method: EPA 8080 EPA 8080 EPA 8080 EPA 8080 EPA 6080 EPA 8080 <br /> Analyst: C.Chapman C.Chapman C.Chapman C.Chapman C.Chapman C,Chapman <br /> Concentration <br /> Spiked: 2.5 Ng/kg 2.5 erg/kg 2.5 pg/kg 5.0,ug/kg 5.0 pg/kg 5.0 pg/kg <br /> LCS. Batch#: LCS110795A LC8110795A LCS110795A LCS110795A LC8110795A LCS110795A <br /> Date Prepared: 11/7/95 11/7/95 11/7/95 11/7/95, 11/7/95 .11/7/95 <br /> Date Analyzed: 11/9/95 11/9/95 11/9/95 11/9/95 11/9/95 11/9/95 <br /> Instrument I.D.#: GCHP-4A GCHP-4A GCHP-4A GCHP-4A GCHP-4A GCHP-4A <br /> LCS% <br /> Recovery: 92 118 94 86 .. 108 82 <br /> Control Limits: 60-130 60-130 60-130 . 60-130 60-130 60-130 i <br /> MS/MSD I <br /> Batch#: 5110293 5110293 5110293 5110293. 5110293 5110293 <br /> Date Prepared: 11/7/95 11/7/95 11/7/95 11/7/95: 11/7/95 11/7/95 <br /> Date Analyzed: 11/9/95 11/9/95 11/9/95 11/9/95 11/9/95 11/9/95 <br /> .instrument I.D.#: GCHP-4A GCHP-4A GCHP-4A GCHP-4A GCHP-4A GCHP-4A <br /> Matrix Spike i <br /> %Recovery: <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: <br /> Relative% <br /> Difference: <br /> 3 i <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 /> "�4 ` l validation of sample batch results. Due to matrix effects,the QC limits for MS/MSD's are advisory only <br /> �� and are not used to accept or��reject hatch results. *Matrix interference. <br /> 4a�net clan �` f� <br /> Proje t Manager <br /> 5110292.UPS <4n <br />