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(D Sequoia 680 Chesapeake Drive Redwood City;CA 94063 (415) 364-9600 FAX(415) 364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (510) 988.9600 FAX(510)988-9673 <br /> �p Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921.0100 <br /> ..................... <br /> Star Building Systems Client Project ID: Waste Testing <br /> 12101 Ebrandt Rd. Matrix: Sludge <br /> Lockeford, CA 95237 <br /> Attention: Jeremy Ball QC Sample Group: 707-0155 Reported: Jul 22, 1997jj <br /> - <br /> ........... <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE STLC STLC STLC STLC STLC STLC <br /> Barium Cadmium Nickel Vanadium Zinc Mercury <br /> Method: EPA 6010 EPA 6010 EPA 6010 EPA 6010 EPA 6010 EPA 7470 <br /> Analyst: K.Marchand K.Marchand K. Marchand K.Marchand K.Marchand T.Le <br /> Concentration <br /> Spiked: 10mg/L 10mg/L 10mg1L 10 mg/L 10mg/L 0.010 mg/L <br /> LCS Batch#: LCS070997 LCS070997 LCS070997 LC8070997 LCS070997 LCS071497 <br /> Date Prepared: 07/09/97 07/09/97 07/09/97 07/09/97 07/09/97 07/14/97 <br /> Date Analyzed: 07/11/97 07/11/97 07/11/97 07/11/97 07/11/97 07/14/97 <br /> Instrument I.D.#: ICP-1 ICP-1 ICP-1 ICP-1 ICP-1 MV-1 <br /> LCS % <br /> Recovery: 100 101 101 105 103 105 <br /> Control Limits: 80-120 80-120 80-120 80-120 80-120 80-120 <br /> X. <br /> M <br /> MS/MSD <br /> Batch#: 70702111S 70702111S 707021115 707021115 70702111S 7070162 <br /> Date Prepared: 07/09/97 07/09/97 07/09/97 07/09/97 07/09/97 07/14/97 <br /> Date Analyzed: 07/11/97 07/11/97 07/11/97 07/11/97 07/11/97 07/14/97 <br /> Instrument Ll ICP-1 ICP-1 CP-1 ICP-1 ICP-1 MV-1 <br /> Matrix Spike <br /> % Recovery: 100 100 97 104 96 134 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 100 100 97 104 97 124 <br /> Relative% <br /> Difference: 0.0 0.0 0.0 0.0 1.0 5.1 <br /> Please Note: <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> SEQ9PIA ANAILYTIC, L 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 /> C. Schneider <br /> /Pl t Manager/Sacramento oratory 7070155.SBS <2> <br /> r9% <br />