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CHEMWEST ANALYTICAL LABORATORIES <br /> NITRATE-N <br /> Date(s) Analyzed: 07/18/90 Case 6332 <br /> thru: 07/27/90 Matrix: Water <br /> Amount <br /> Client CHEMWEST Detected <br /> ID ID (mg/L) <br /> ------------------------------------------------------------------ <br /> 64629 6332-1 48 <br /> 64630 6332-2 26 <br /> 64631 6332-3 2 . 8 <br /> 64632 6332-4 4 . 1 <br /> 64633 6332-5 21 <br /> 64634 6332-6 11 <br /> 64635 6332-7 23 <br /> 64636 6332-8 19 <br /> 64637 6332-9 21 <br /> 64638 6332-10 3 .7 <br /> 64639 6332-11 7 . 0 <br /> 64640 6332-12 4 . 5 <br /> ------------------------------------------------------------------ <br /> Spike Amount <br /> Client CHEMWEST Conc. a Detected <br /> ID ID (mg/L) Rec. (mg/L) <br /> ------------------------------------------------------------------ <br /> Method Blank 6332-MB BRL <br /> MBS 6332-MBS 1. 0 990 <br /> MBSD 6332-MBSD 1. 0 980 <br /> ------------------------------------------------------------------ <br /> Relative % Difference = 1% <br /> The reporting limit for Nitrate-N is 0. 04 mg/L. <br /> BRL: Below Reporting Limit. <br /> Approved by: REV3 : 1.90 <br /> COMPUCHEM WESTERN DMSION <br />