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- m _ —- <br /> 680 Chesapeake Drive Redwood City,CA 94063 (650) 364.9600 FAX(650)364-9233 <br /> Sequoia P <br /> J 404 N.Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> 819 Striker Avenue,Suit,8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> Analytical <br /> ATC Client Project ID, 15598, D'Arcy Road Lathrop <br /> €:1260 Graphics Drive Matrix: Solid <br /> ' Modesto, CA 95351-1502 <br /> ..Attention Jeanne Hornsey Work Order# 98031-114 -01-09, 11 Reported Apr 3, 1998:' <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Diesel <br /> QC Batch#: GCO326980HBPEXA <br /> Anaiy. Method: EPA 8015M <br /> Prep. Method: EPA 3550 <br /> Analyst: A.Porter <br /> MS/MSD#: 9803HI405 <br /> ' Sample Conc.: N.D. <br /> Prepared Date: 3/26/98 <br /> Analyzed Date: 3/27/98 <br /> Instrument I.D.#: GCHP5 <br /> i <br /> Conc. Spiked: 25 mg/Kg <br /> Result: 21 <br /> MS % Recovery: 84 <br /> Dup. Result: 19 <br /> " MSD %Recov.: 76 <br /> RPD: 10 <br /> RPD Limit: 0-50 <br /> LCS#: SLK032698 <br /> Prepared Date: 3/26/98 <br /> Analyzed Date: 3/27/98 <br /> Instrument I.D.#: GCHP5 <br /> ' Conc. Spiked: 25 mg/Kg <br /> LCS Result: 21 <br /> ' LCS % Recov.: 84 <br /> 50-150 <br /> ' LCS 60-140 <br /> Control Limits <br /> Please Note: <br /> t The LCS is a control sample of known, interferent-free matrix that is analyzed using the same reagents, <br /> =Kimyal <br /> L 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 tall within specified control limits due to matrix <br /> Finterference,the LCS recovery is to be used to validate the batch. <br /> n Project Manager **MS Matrix Spike,MSD=MS Duplicate, RPD Relative% Difference 98031-114.AAA <1> <br />