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05/27/04 THtr 14:31 F,1b 805 525 1172 FGL ENVIRON'Us-TL qh007 <br /> `v %we <br /> May 27, 2004 Lab ID : STK433371 <br /> Clark Well Inc. Customer . 3-2343 <br /> Quality Control - Organic <br /> aa <br /> Consatuent Method DateID Type Units Conc. QC Data llQ0 I \ate <br /> DBCY 504.1 0525/2OU4 A203 Blank ug/L ND <U.OL <br /> LCS ugl 0.2950 77 4% 70-13U <br /> a5 ug'L 0.2950 794% 7U-130 <br /> BSD ug.'L 0,2950 a1.0% 70-130 <br /> BSRPD ug'L 0.7•rt Sill <br /> 5041 0923/2()U4:A 01-CCV I ug.L 10.00x331 70-I30 <br /> U2{CV uS L LO Ott a2.b+t 70-:30 <br /> l.3-Urbromnprnpane-Surrogxc 504.1 p5252004:A203 Blank ug/L 0.5868 log% 70-130 i <br /> LCS uyL 0.5868 104% 70-130 <br /> B8 ugrL 0.5868 104% 70-t30 <br /> BSD ug/L 0.5868 105% 711.130 <br /> 504.1 05252004-A 0I-CCV ugrL 9.975 109% 70-130 <br /> 02-CCV ug/L 9.975 110% 70-130 <br /> EDB 5041 05252004:A203 Blank ug/L ND <0.U2 <br /> LCS ug/L U.295U 93I% 70-13U <br /> as ug/L 0.2950 94 1# 70-:30 <br /> BSD u@!L U 2950 94 k% 70.130 <br /> BSRPD ug/L U.2% 530 <br /> 504.1 0525/2U04:A 01-CCV ug/L10.00 92,3% 70-130 <br /> 02-CCV ug/L 10.01) 94.6s. 70-130 <br /> Iktuuuom <br /> Blank Memod Blank Prepared to verify that the preparation pmwcv is not contributing contamination al me samples. <br /> LCS 4horarory, Control Stordardf5ample - prepared to verify that the preparation process a nut affocnng wulym <br /> recovery. <br /> M5/1,15D Matrix spikes - A random Sample is spiked with a known amoum of amlyw. The recoveries are an ind;catnm o <br /> Imv, that sample matrix affects analyte roeuvery. <br /> esfBSD Blank Spikes - A Mark is spiked with a known amount of analyte. 11 is prepared W verify Nat the prep canon <br /> Process is we affecting analyte recovery <br /> CCB - COnnnunlg CalrbralWn Blank - Analyzed to venry me InfWnRnt buemie Is wimin Cntcrla. <br /> CCV Continuing Calibration Venrication - Analyzed to verify the insnment calibration a wfthhl criteria. <br /> ND Non-detect - Result was below the DQO luted for the aralyte. <br /> DQO <br /> Not Qaaloy Objective - This is the criteria against which be quality conal data is compared. <br /> STK433371: Quality Control Page 2 <br /> i <br /> i <br />