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Sequoia 680 Chesapeake Drive Redwood C9ry,CA 94063 (650)364-9600 •6 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (510)988-9600 FAX(510)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792-1865 .' FAX(707)792-0342 <br /> I <br /> Blaine Tech Services Client Project 1D: Shelf 1267 Country Club <br /> ' 1680 Rogers Ave. , <br /> San Jose, CA 95112 <br /> Attention.: Fran Thie QC Sample Group: 9805662-02-08 Reuorted: May 21, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Matrix: Liquid <br /> Method: EPA 8015A it <br /> Analyst: K HERRERA <br /> j <br /> ANALYTE Diesel - <br />�. i <br /> QC Batch M GC0514980HBPEXA SG1 <br /> Sample No.: 9805662-01 <br /> Date Prepared: 5/14198 <br /> Date Analyzed: 5/14/98 <br /> Instrument I.D.#: GCHPSA y. <br /> Sample Cone., ug/L: 1300 <br /> Conc.Spiked, ug/L: 1000 <br /> Matrix Spike,ug/L: 1800 <br /> %Recovery: 50 i <br /> Matrix J <br /> pike Duplicate, ug/L: 2100 <br /> %Recovery: 80 <br /> I!I <br /> elative% Difference: 46 <br /> RPD Control Limits: 0-50 <br /> a <br /> iN <br /> LCS Batch#: BLK051498AS SG <br /> Date Prepared: 5114198 <br /> Date Analyzed: 5115/98 ' <br /> Instrument I.D.#: GCHPSA <br /> Conc.Spiked,ug/L: 1000 <br /> Recovery,ug/L: 640 <br /> LCS%Recovery: 64 <br /> Percent Recovery Control Limits: <br /> MSIMSD 40-140 � 4 <br /> LCs 40-146 M <br /> Quality Assurance Statement: All standard operating procedures and quality control requirements have been met. <br /> Please Note: <br /> The LCS is a control sample of known,Interferent free matrix that is analyzed using the same re agents, <br /> SE 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 the entire analyticaf procedure. If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits dup to matrtx <br /> interference,the LCS recovery is to be used to validate the batch. <br /> P g Pen <br /> Pr ' ct Manager <br />