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. 1 <br /> Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)92I-0100 <br /> 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707) 792-0342 <br /> ATC Associates Client Project ID: Inland Plant 17295.0001 <br /> 1260 Graphics Dr. <br /> ' Modesto, CA 95351-1502 <br /> Attention: Drew Van Allen QC Sample Group: 9809749-01-05 Reported: Sep 24, 1998 <br /> ' QUALITY CONTROL DATA REPORT <br /> Matrix: Solid <br /> Method: EPA 8015 <br /> ' Analyst: N.H. <br /> ANALYTE Gasoline <br /> ' QC Batch#: GCO91598BTF-XEXA <br /> Sample No.: 9809725-21 <br /> ' Date Prepared: 9115198 <br /> Date Analyzer!: 9115198 <br /> Instrument I.D.#: GCHP01 <br /> ' ample Conc.,mg/Kg: N.D. <br /> Conc.Spiked,mg/Kg: 5.0 <br /> Matrix Spike,mg1Kg: 6.4 <br /> %Recovery: 128 <br /> Matrix <br /> Ike Duplicate,mglKg: 6.5 <br /> ' %Recovery: 130 <br /> ' eladve%Difference: 1.6 <br /> RPD Control Limits: 0-25 <br /> LCS Batch#: GCO91598BTEXEXA <br /> ' Date Prepared: 9115198 <br /> Date Analyzed: 9115198 <br /> Instrument I.D.#: GCHP01 <br /> ' Conc.Spiked,mglKg: 5.0 <br /> Recovery,mg/Kg: 6.1 <br /> LCS% Recovery: 122 <br /> ' Percent Recovery Control Limits: <br /> F- <br /> Ms/MsD 60-140 <br /> LCS 70-130 <br /> d1, As a e Statement: All standard operating procedures and quality control requirements have been met. <br /> Please Note: <br /> d The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> ANAL preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br /> foKiigedyllh known quantities of specific compounds and subjected to the entire analocal 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 recove is to be used to validate the hatch. <br /> yainager <br />