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6130 Chesapeake Drive Redwood City,CA941763 {Ow) -Ju• 7vvv —k—) --- <br /> Sequoia 404 N.WlSet Lane Walnut Creek.CA 94598 (925)988-9600 FAX(9Z51988-9673 <br /> Sacramento,CA 95834 (916)921-9600 FAX(916)y'21-10l00'' <br /> Big Striker Avenue,Suite 8 CA 94954 (707)792-1865 FAX(707)79Z-0342. <br /> Analytical 1455 McDowell 131vd.Mo,th,Ste.D Petaluma, <br /> :2494 Fre'rn.... <br /> BlaineTe'...c'h ServiGes, ....Client Projkffff: Shall ont St. <br /> X,I <br /> 1680 Rogers Ave. Liquid <br /> Matrix: <br /> 'San Jose, CA.95112 <br /> Sep 3, 1998I.-...",� <br /> tion: Fra ' <br /> Work Order#: 9808C54 -01 Reported,:,, <br /> .. . . <br /> .. . .. .. <br /> . .. <br /> ".Attenn Thie <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch#: 08V8455- OSV8455 OBV8455 08V8455 <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep. Method, EPA 5030 EPA 5030 F' EPA 5030 EPA 5030 <br /> Analyst: L.Hall L.Hall L Hall L Hall <br /> LCS/LCSD#: LCS082698 LCS082698 LC8082698 LCS082698 <br /> Sample Conc.: N.D. N.D. . N.D. N.D. <br /> Prepared Date: 8/26/98 8/26/98 8/26/98 8/26/98 <br /> Analyied Date: 8/26/98 8/26/98 8/26/98 8/26/98 <br /> Instrument I.D.#: <br /> Conc.,Spiked: 20 pg/L 20 pg/L 20,ug/L. 20,ug/L <br /> Result: 18 18 18 19 . <br /> LCS % Recovery: 90 90 90 95 <br /> Dup. Result: 19 19 19 20 <br /> LCSD %Recov.: 95 95 95 100 U <br /> RPD: 5.4 5.4 5.4 5,1 <br /> RPD Limit; 0-25 0-25 0-25 0-25 <br /> ........... <br /> IVIS/MSD <br /> LCS 80-120 80-120 80-120 80-120 <br /> Control Limits <br /> Please Note: <br /> S U AN LYTICAL The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> JA A <br /> # 849 preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br /> d - '-If <br /> fortified with known quantities of specific compounds and subjected to the entire analytical proce ure. <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 /> eggy Pe r <br /> g Penner <br /> Pro' t Manager MS Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference 9808C54.BLA <1> <br />