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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wtget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> ` ! , m 1 L Y n ` ♦OY lr !h v ry r ry ry <br /> Touchstone Developments Client Project ID Chevron 9-8264/8264-1 <br /> 6280 Stoneridge Mall Rd , B211 Matrix Solid <br /> Pleasanton, CA 94588 <br /> Attention Anne Marie Dockstader Work Order# 9511703 -01 Reported Nov 14, 1995 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Reactive Cyanide Reactive Sulfide <br /> OC Batch#: IN111095084600A IN111095084600A <br /> Analy. Method Sw-a46 sw-846 <br /> Prep Method- N/A N/A <br /> Analyst: A.Pina K Newberry <br /> MS/MSD #- - - <br /> Sample Cone - <br /> Prepared Date - - <br /> Analyzed Date <br /> Instrument 1 D # - - <br /> Cone Spiked - <br /> Result' - - <br /> MS % Recovery' - - <br /> Dup Result - <br /> MSD % Recov. - - <br /> RPD: - - <br /> RPD Limit: - - <br /> LCS#' LCS111095 LCS111095 <br /> Prepared Date: 11/10/95 11/10/95 <br /> Analyzed Date: 11/10/95 11/10/95 <br /> Instrument I D #. Manual Manual <br /> Cone Spiked- 0 20 mg/L 10 mg/L <br /> LCS Result. 0 063 10 <br /> LCS % Recov : 31 100 <br /> MS/MSD <br /> LCS 65-40 80-120 <br /> Control Urnrts <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> SB OIA ANALYTICAL preparation,and analytical methods employed for the samples The matrix spike rs an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> Mark Cargasacchi <br /> Project Manager **MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference 9511703 TTT <I> <br />