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Sequoia 680 Chesapeake Drive Redwood City,CA 9406 (415) 364-9600 FAX(415) 364-9133 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 911-9600 FAX(916)911-0100 <br /> Star Building Systems Client Project ID: Waste testing <br /> 12101 E. Brandt Road Matrix: Solid <br /> Lockeford, CA 95237 <br /> Attention: Jeremy Ball QC Sample Group: 7060301-0302 Reported: Jun 24, 1997 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE STLC STLC <br /> Barium Zinc <br /> Method: EPA6010 EPA 6010 <br /> Analyst: K.Marchand K.Marchand <br /> Concentration <br /> Spiked: 10 mg/L 10 mg/L <br /> LCS Batch#: LCS061397 LCS061397 <br /> Date Prepared: 06/13/97 06/13/97 <br /> Date Analyzed: 06/16/97 06/16/97 <br /> Instrument I.D.#: ICP-1 ICP-1 <br /> LCS % <br /> Recovery: 100 102 <br /> Control Limits: 60-120 30-120 <br /> MS/MSD <br /> Batch #: 7060302 7060302 <br /> Date Prepared: 06/13/97 06/13/97 <br /> Date Analyzed: 06/16/97 06/16/97 <br /> Instrument LD.#: ICP-1 ICP-1 <br /> Matrix Spike <br /> °e Recovery: 101 99 <br /> Matrix Spike <br /> Duplicate % <br /> Recovery: 101 99 <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 /> SE CIA 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 /> PdaA <br /> �G �� and are not used to acce t or reject batch results. <br /> elder//Pager/Sacramento Laboratory <br /> 7060302.SSS <2> <br />