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Sequoia 680,Chesapeake Drive'� Redwood City,CA 94063 (415) 364.9600 FAX(415) 364-9233 <br /> 4D- 404 N.Wiget lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921.0100 <br /> p9 Client F�ralect'1L7 " Snell F��operty.. :.......... .......:.............:........r..r......:...,..,... <br /> 1017 26th St. Matrix: Water <br /> Sacramento, CA 95816 <br /> ':'Attention: Vic Cherven CC Sample Group: 604-0916 Reported: May 8, 1996:: <br /> QUALITY CONTROL DATA REPORT <br /> I <br /> ANALYTE <br /> Lindane Heptachlor Aldrin <br /> Method: EPA 8080 EPA 8080 EPA 8080 <br /> Analyst: G.Garcia G.Garcia G.Garcia <br /> Concentration <br /> Spiked: 0.10 ug/L 0.10 ug/L 0.40 ug/L <br /> j <br /> LCS Batch#: LCSO42696 LC8042696 LCSO42696 <br /> Date Prepared: 04/26/96 04/26/96 04/26/96 <br /> Date Analyzed: 04/30/96 04/30/96 04/30/96 <br /> Instrument I.D.#: GCHP-10 GCHP-10 GCHP-10 <br /> LCS % <br /> Recovery: so 74 76 <br /> Control Limits: 40-110 40-140 45-120 <br /> ......... .............. ..........:.:..::.-::::.::.::..::.:.,h:..:.::.::.:;.w:<.u:.:::.;; <br /> .:........... <br /> :.....::.: .....................................:................ ...::.:. ...... ::..:....::::.... <br /> I. <br /> MS/MSD <br /> Batch#: 9604E36-01 9504E36-01 9604E36-01 <br /> Date Prepared: 04/23/96 04/23/96 04/23/96 <br /> Date Analyzed: 04/24/96 04/24/96 04/24/96 <br /> instrument I.D.#: GCHP-10 GCHP-101 GC4-10 <br /> Matrix Spike <br /> % Recovery: 83 74 79 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 88 79 80 <br /> Relative% <br /> Difference: 5.4 5.6 2.2 <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 re'ect batch results. <br /> AndaSchneiderManager/Sacramento Laboratory <br /> 6040916-UPS <2> <br />