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sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364-9600 FAX(415) 364-9133 <br /> 14 N.Wiget Lane Walnut Creek,CA 94598 310) 988-9600 FAX(510)988-9673 <br /> Analytical %009 Striker Avenue,Suite a Sacramento,CA 95834 N"016) 911-9600 FAX(916)911.0100 <br /> Smith Environmental Client Project ID: 95-136, Olin <br /> 1260 Graphics Drive Matrix: Solid <br /> Modesto. CA 95351-1502 <br /> Attention: Jeanne Homsey Work Order #: 9511713-01-4 Reported: Nov 28, 1995 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Sulfate <br /> OC Batch#: IN1115953000ACB <br /> Analy. Method: EPA 300.0 <br /> Prep. Method: N/A <br /> Analyst: S. Flynn <br /> M S/MSD'#: 951171304 <br /> Sample Conc.: 99 <br /> Prepared Date: 11/15/95 <br /> Analyzed Date: 11/15/95 <br /> Instrument I.D.#: INIC1 <br /> Conc. Spiked: 100 mg/Kg <br /> Result: 180 <br /> MS % Recovery: 81 <br /> Dup. Result: 160 <br /> MSD % Recov.: 81 <br /> RPD: 00 <br /> RPD Limit: 0-40 <br /> LCS #: <br /> Prepared Date: <br /> Analyzed Date: <br /> Instrument I.D.#: <br /> Conc. Spiked:- <br /> LCS Result: <br /> LCS %Recov.: - <br /> MS/MSO60-140 <br /> LCS 90-110 <br /> Control Limits <br /> Please Note: <br /> The LCS is a control sample of known,interferent-tree matrix that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure. 1 <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 /> Vickie Tague Clark <br /> Project Manager ••MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference 9511713.SSS <2> <br />