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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (915)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd. Horth,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> J <br /> ATC Associates Client Project ID: Inland Paint <br /> 1260 graphics Dr. <br /> Modesto, CA 95351-1502 <br /> ' Attention: Drew Van Allen QC Sample Group: 9809984-01-08 Reported: Sep 25, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Matrix: Solid <br /> Method: EPA 8015 <br /> Analyst: N.H. <br /> ANALYTE Gasoline <br /> QC Batch#: GC091898BTEXEXA <br /> Sample No.: 9809984-5 <br /> Date Prepared: 9118198 <br /> ' Date Analyzed: 9118198 <br /> Instrument I.D.#: GCHP22 <br /> ' ample Conc.,mg/Kg: N.D. <br /> Conc.Spiked,mg/Kg: 5.0 <br /> Matrix Spike,mg/Kg: 4.3 <br /> % Recovery: 86 <br /> Matrix <br /> Pike Duplicate,mglKg: 5.5 <br /> ' % Recovery: 110 <br /> ' elative%Difference: 24 <br /> RPD Control Limits: 0-25 <br /> LCS Batch#: GCO91898BTEXEXA <br /> Date Prepared: 9118198 <br /> Date Analyzed: 9118198 <br /> Instrument I.D.#: GCHP22 <br /> Conc.Spiked,mg/Kg: 5.0 <br /> Recovery,mg/Kg: 5.3 <br /> LCS% Recovery: 106 <br /> Percent Recovery Control Limits: <br /> MSlMSD 60-140 <br /> LCS 70-130 <br /> VManager <br /> Allandard operating procedures and quality control requirements have been met. <br /> Please e: <br /> e LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> 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 /> interference,the LCS recovery is to be used to validate the batch. <br />