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Sequoia 680 Chesapeake Dnvc Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> r (D1 404 11 Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510)988 9673 <br /> � Analytica819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> 4tel-Tech Client Pro'ect ID Otly G W Monitoring Stan Morn cord <br /> 1 Monitoring/ <br /> Stan <br /> Olive Ave Matrix Water <br /> Oakdale, CA 95361 <br /> Attention Don Light OC Sample Group 5121457-63 Reported Jan 9, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Tnchloro- Chloro- <br /> 1,1-DCA ethene benzene <br /> Method EPA 8010 EPA 8010 EPA 8010 <br /> Analyst K Pocan K Pocan K Pocan <br /> Concentration <br /> Spiked 10 ug/L 10 ug/L 10 ug/L <br /> LCS Batch# LCS010296 LCS010296 LCS010296 <br /> Date Prepared 01/02/96 01/02/96 01/02/96 <br /> Date Analyzed 01/02/96 01/02(96 01/02/96 <br /> Instrument I D # GCHP-5 GCHP-5 GCHP-5 <br /> LCS % <br /> Recovery 92 104 74 <br /> Control Limits 70-130 70-130 70-130 <br /> MS/MSD <br /> Batch # 5121382 5121382 5121382 <br /> Date Prepared 01/02/96 01/02/96 01/02196 <br /> Date Analyzed 01/02/96 01/02/96 01/02196 <br /> Instrument I D # GCHP-5 GCHP-5 GCHP-5 <br /> Matrix Spike <br /> % Recovery 94 113 76 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery 96 112 76 <br /> Relative% <br /> Difference 21 090 00 <br /> Please Note <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL40preparation 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 CC limits for MS/MSD's are advisory only <br /> and are not used to accept or reject batch results <br /> Janet H n _,_a. - <br /> Project nager/Sacramento Laboratory <br /> 5121458 DDD <6> <br />