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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364.9600 FAX (415) 364-9233 <br /> 15) 404 N, Wiget Lane Walnut Creek,CA 94598 (510) 988.9600 FAX (510) 988.9673 <br /> Analytical 819 Strikcr Avenuc, Suite 8 Sacramento, CA 95834 (916) 921.9600 FAX (916) 921-0100 <br /> Blaine Tech Services, Inc. Client ProjectID: Chevron 9-0557%960222-L2 <br /> .985 Timothy Drive Matrix: Liquid <br /> San Jose, CA 95133 <br /> ..Attention: Jim Keller Work Order#: 9602F75 -01 -07 Reported: Mar 5, 1996-1. <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch#: GCO22-2696BTEX22A GCO222696BTEX22A GCO222696BTEX22A GCO222696BTEX22A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: R.Lee R.Lee R.Lee R. Lee <br /> MS/MSD #: G9602E58-048 G9602E58-04B G9602E58-04B G9602E58-04B <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 2/27/96 2/27/96 2/27/96 2/27/96 <br /> Analyzed Date: 2/27/96 2/27/96 2/27/96 2/27/96 <br /> Instrument I.D.#: GCHP22 GCHP22 GCHP22 GCHP22 <br /> Conc. Spiked: 10 ug/L 10 ug/L 10 ug/L 30 ug/L <br /> Result: 9.2 9.1 9.2 27 <br /> MS % Recovery: 92 91 92 90 <br /> Dup. Result: 9.1 9.1 9.1 27 <br /> MSD % Recov.: 91 91 91 90 <br /> RPD: 1.1 0.0 1.1 0.0 <br /> RPD Limit: 0-50 0-50 0-50 0-50 <br /> LCS #: GBLK022796A GBLK022796A GBLK022796A GBLK022796A <br /> Prepared Date: 2/27/96 2/27/96 2/27/96 2/27/96 <br /> Analyzed Date: 2/27/96 2/27/96 2/27/96 2/27/96 <br /> Instrument I.D.#: GCHP22 GCHP22 GCHP22 GCHP22 <br /> Conc. Spiked: 10 ug/L 10 ug/L 10 ug/L 30 ug/L <br /> LCS Result: 9.0 8.9 9.0 27 <br /> LCS % Recov.: 90 89 90 90 <br /> LCS 70-130 70-130 70-130 70-130 <br /> Control Limits <br /> Please Note: <br /> The LCS is a control sample of known,inierferent-free matrix that is analyzed using the same reagents, <br /> SE IA NALYTICAL 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 tate 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 /> P g e er <br /> o!e t Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9602F75.BLA c1> <br />