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r-3 <br /> i� <br /> 680 Chesapeake Drive Redwood City.CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N.Wiget Lane Walnut Creek,CA 94598 (915)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd,North,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services Client Project ID: Shell 1267 Country Club <br /> 1680 Rogers Ave. <br /> San Jose, CA 95112 <br /> Attention: Fran Thie QC Sample Group: 9808957-01-06, 961-07 Reported: Sep 8, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Matrix: Liquid <br /> Method: EPA 8015A <br /> Analyst: A. PORTER <br /> ANALYTE Diesel <br /> QC Batch#: GC0824980HBPEXZ <br /> Sample No.: 9808957-2 <br /> Date Prepared: 8124198 <br /> Date Analyzed: 8127198 <br /> Instrument LD.#: GCHP56 <br /> Sample Conc., ug/L: 6900 <br /> Conc.Spiked, ug/L: 1000 <br /> Matrix Spike, ug/L: 7700 <br /> %Recovery: 80 <br /> Matrix J <br /> pike Duplicate, ug1L: 7800 <br /> %Recovery: 90 <br /> eiative% Difference: 12 <br /> RPD Control Limits: 0-50 <br /> LCS Batch#: BLK082498ZS <br /> Date Prepared: 8124198 <br /> Date Analyzed: 8127198 <br /> Instrument I.D.#: GCHP4A <br /> Conc.Spiked, ug/L: 1000 <br /> Recovery, ug/L: 740 <br /> LCS%Recovery: 74 <br /> Percent Recovery Control Limits: <br /> MS/MSD 50-150 <br /> LCS 60-140 <br /> QualityfAan a Statement: All standard operating procedures and quality control requirements have been met. <br /> Please Note: r <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> L TICAL preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of samplefortified 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 /> P ggyP ojecr <br />