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Sequoia 680 Chesapeake Drive Redwood City, CA 94063 (415) 364-9600 FAX(415) 364-9233 <br /> 404 N. Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> VIII Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)9210100 <br /> XC <br /> = r: <br /> Smith Environmental Client Project ID: 14518, 94-36901-10 <br /> 1260 Graphics Drive Matrix: Liquid <br /> iModesto, CA 95351-1502 <br /> <Attention: Jeanne Homsey Work Order#: 97041367 -01, 02 Reported: May 2, 199T1. <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Diesel <br /> QC Batch#: GC042397OGBPEXB <br /> Analy. Method: EPA 8015M <br /> Prep. Method: EPA 3510 <br /> Analyst: B.Sullivan <br /> MS/MSD #: 9704A66-03 <br /> Sample Conc: N.D. <br /> Prepared Date: 4/23/97 <br /> Analyzed Date: 4/24/97 <br /> Instrument I.D.#: GCHP4A <br /> Conc. Spiked: 1000 ug/L <br /> Result: 830 <br /> MS % Recovery: 83 <br /> Dup. Result: 760 <br /> MSD % Recov.: 76 <br /> RPD: 8.8 <br /> RPD Limit: 0-50 <br /> LCS #: BLK042397Bs <br /> Prepared Date: 4/23/97 <br /> Analyzed Date: 4/24/97 <br /> Instrument LD.#: GCHP4A <br /> Conc. Spiked: 1000lig/L <br /> LCS Result: 880 <br /> LCS % Recov.: 88 <br /> 50-150 <br /> LCS 60-140 <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 /> SEQ OIAALYTICAL 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. If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> nterference,the LCS recovery is to be used to validate the batch. <br /> Sheila Flynn <br /> Project Man er **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9704B67.SSS <1> <br />