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' 0 10 <br /> Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> frilly Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921.0100 <br /> . ... <br /> Kleinfelder::::...............................................:::::Cl enf Pro'ecfj:D....:. 20-4054-01..Eo.1.;;;::.............................................................................................................. <br /> 1 <br /> 2825 East Myrtle St. Matrix: Soil/Water <br /> Stockton, CA 95205 <br /> Attention: Tony Martin QC Sample Group: 8030426-0428, 0430 Reported: Mar 26, 1998::;: <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Cadmium Chromium Lead Nickel Zinc Mercury Diesel <br /> Method: EPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 6010B EPA 7471 DHS LUFT <br /> ' Analyst: S. Phillips S. Phillips S. Phillips S.Phillips S. Phillips P.Kent S. Phillips <br /> Concentration <br /> Spiked: 50 mg/kg 50 mg/kg 50 mg/kg 50 mg/kg 50 mg/kg 0.25 mg/kg 500 mg/L <br /> LCS Batch#: LCS031198 LCS031198 LCS031198 LCS031198 LCS031198 LCS031698 LCS031298 <br /> Date Prepared: 03/11/98 03/11/98 03/11/98 03/11/98 03/11/98 03/16/98 03/12/98 <br /> Date Analyzed: 03/15/98 03/15/98 03/15/98 03/15/98 03/15/98 03/16/98 03/12/98 <br /> Instrument I.D.#: ICP-1 ICP-1 ICP-1 ICP-1 ICP-1 HG-1 GCHP-313 <br /> LCS % <br /> Recovery: 95 96 95 97 97 99 92 <br /> Control Limits: 80-120% 80-120% 80-120% 80-120% 80-120% 80-120% 60-140% <br /> 1 MS/MSD <br /> Batch #: 8030228 8030228 8030228 8030228 8030228 8030428 BS031298 <br /> Date Prepared: 03/11/98 03/11/98 03/11/98 03/11/98 03/11/98 03/16/98 03/12/98 <br /> Date Analyzed: 03/15/98 03/15/98 03/15/98 03/15/98 03/15/98 03/16/98 03/12/98 <br /> Instrument I.D.#: ICP-1 ICP-1 ICP-1 ICP-1 ICP-1 HG-1 GCHP-313 <br /> Matrix Spike <br /> % Recovery: 90 91 91 92 94 96 92 <br /> Matrix Spike <br /> ' Duplicate% <br /> Recovery: 90 92 92 92 92 97 92 <br /> Relative% <br /> Difference: 0.0 1.1 1.1 0.0 2.2 1.0 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 /> SEQU 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 /> L�'- and are not used to accept or reject batch results. <br /> I�fda C. Sch eider ZZGG <br /> Project Manager/Sacramento Laboratory <br /> 8030426.KLF <29> <br />