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{ _ 1 <br /> ® Sequoia 680 Chcsapeakc Drive Rcdwood City, CA 94063 (415) 364.9600 FAX (4 15) 364.9233 <br /> 404 N. Wigc1 Lane Walnut Creek,CA 94598 (510) 988-9600 FAX 5 r <br /> Ift Analytical C a ( 6)981-9673 <br /> 1 i Ci 819 Striker Avenue,Suite 8 Sacramento, CA 95834 (916) 921-9600 FAX (916)9�I-o zoo <br /> ent Proje6-t,i-f5' 20-2250 07.601 33840 . Bevis 1+{d <br /> 2825 East Myrtle St. Matrix: Water <br /> Stockton, CA 95205 <br /> `> Attention: Steve Davis QC Sample Group: 701-0382 Reported: Jan 2 <br /> 0, 199 <br /> QUALITY CONTROL DATA REPORT <br /> I. <br /> ANALYTE <br /> QBCP Nitrate <br /> Method: EPA 504 EPA 300.0 <br /> Analyst: D.!Nelson K.Anderson <br /> Concentration <br /> Spiked: 11 ug/L 10 mg/L <br /> LCS Batch#: LCS011687 LCS011297A <br /> Date Prepared: 01/18/97 01/15/97 <br /> Date Analyzed: 01/16/97 01/16/97 <br /> Instrument I.D.#: GChPP-13 INIC-1 <br /> i <br /> LCS % <br /> Recovery: 81 100 <br /> Control Limits: 50-150 80-12D <br /> MS/MSD <br /> Batch #: 9701713-01 7010620 <br /> Date Prepared: 01/16/97 01/15/97 <br />- Date Analyzed: 01/16/97 01/16/97 <br /> Instrument I.D.#: GCHP-13 INIC-1 <br /> Matrix Spike <br /> % Recovery: 85 103 <br /> Matrix Spike <br /> Duplicate <br /> f Recovery: 85 103 <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 /> 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 QC limits for MS/MSG's are advisory only <br /> M and are not used to accept or reject batch results. <br /> Edana M. Belschner <br /> Project Manager/Sacramento Laboratory <br /> 7010382.KLF <3> <br />