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Sequoia lklweao Chesapeake Drive Redwood City,CA 9406(415) 364.9600 FAX(415) 364-9233 <br /> 41) 404 N.Wigct Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> Analytical 819 S,,ikl!F Avenue,Suite 9 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> N* <br /> ......011�e hi-P.... .......... . .. <br /> ............ ..,Jpgradient rojeCt ib: ne! ..... <br /> 1017 26th St. Matrix: Soil /Water <br /> Sacramento, CA 95816 <br /> Attention: Vic Cherven QC Sample Group: 6010194-96 Reported: Jan 23, 1996-.?:' <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Lindane Heptachlor Aldrin Dieldrin Endrin DDT <br /> Method: EPA 8080 EPA 8080 EPA 8080 EPA 8080 EPA 8080 EPA 8080 <br /> Analyst: C.Chapman C.Chapman C.Chapman C.Chapman C.Chapman C.Chapman <br /> Concentration <br /> Spiked: 2.5 jig/kg 2.5ug/kg 2.5ug/kg 5.0 jug/kg 5-0 jig/kg 5.0,ug/kg <br /> LCS Batch#: LCS011196B LCS011196B LCS011196B LCS011196B LCS011196B LCS011196B <br /> Date Prepared: 01/12/96 01/12/96 01/12/96 01/12/96 01/112/96 01/12/96 <br /> Date Analyzed: 01/17/96 01/17/96 01/17/96 01/17/96 01/17/96 01/17/96 <br /> Instrument I.D.#: GCHP-4A GCHP-4A GCHP-4A GCHP-4A GCHP-4A GCHP-4A <br /> LCS % <br /> Recovery: 129 132 105 102 120 129 <br /> N%.- Control Limits: 50-150 50-150 50-150 50-150 50-150 50-150 <br /> .......... <br /> .......... ....... <br /> MS/MSD <br /> Batch #: 6010194 6010194 6010194 6010194 6010194 6010194 <br /> Date Prepared: 01/11/96 01/11/96 01/11/96 01/11/96 01/11/96 01/11/96 <br /> Date Analyzed: 01/12/96 01/12/96 01/12/96 01/12/96 01/12/96 01/12/96 <br /> Instrument I.D.#: GCHP-4A GCHP-4A GCHP-4A GCHP-4A GCHP-4A GCHP-4A <br /> Matrix Spike <br /> %Recovery: 114 105 59 66 92 94 <br /> Matrix Spike <br /> Duplicate % <br /> Recovery: 148 129 65 70 95 108 <br /> Relative% <br /> Difference: 26 20 9.7 5.9 3.2 14 <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/MSD's are advisory only <br /> and are not used to accept or reject batch results. <br /> Janet arlan <br /> P <br /> roje Manager/Sacramento Laboratory <br /> 6010194.UPS <8> <br /> Ob <br />