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Sequoia680 Chesapeake Drive Redwood City, CA 94063 (415) 364-9600 FAX (415) 364-9233 <br /> 404 N,\Viget Lane Walnut Creek,CA 94598 (510) 988,9600 FAX (510)988-9673 <br /> Analytica 1 819 Strikcr Avenue,Suite 8 Sacramento, CA 95834 (916) 9219600 FAX(916)9 21-0100 <br /> .,:::;::Blaine Tech Services, Inc. ............. Client.Project ID: hev'r'&n­9'-G'557/970227-H1 <br /> 1680 Rogers Avenue Matrix: Liquid <br /> "San Jose, CA 95112 ... <br /> , <br /> .,:Attention: Fran Thie <br /> Work Order#: 9702F02-02, -05 Reported: Mar 17 1997... <br /> ..... ... <br /> .... ........ <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch#: 6C030697BTEX17A GC030697BTEX17A GC030697BTEX17A GC030697BTEX17A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 6020 EPA 8020 <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: A.Miraftab A.Miraftab A- Miraftab A Miraftab <br /> MS/MSD #: 97021`2313 9702F2313 9702F2313 97021=2313 <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 3/6/97 3/6/97 3/6/97 3/6/97 <br /> Analyzed Date: 3/6/97 3/6/97 3/6/97 3/6/97 <br /> Instrument 1.104: GCHP17 GCHP17 GCHP17 GCHP17 <br /> Conc. Spiked: 10pg/L 1()pg/L 10pg/L 30 pg/L <br /> Result: 9.1 9.3 9.4 28 <br /> NIS % Recovery: 91 93 94 93 <br /> Dup. Result: 8.7 9.0 8.9 27 <br /> MSD % Recov.: 87 90 89 90 <br /> RPD: 4.5 3.3 5.5 3.6 <br /> RPD Limit: 0-25 0-25 0-25 0-25 <br /> XX X <br /> . ... ...... <br /> X <br /> X. <br /> LCS #: BL1<030697 BLK030697 BLK030697 BLK030697 <br /> Prepared Date: 3/6/97 3/6/97 3/6/97 3/6/97 <br /> Analyzed Date: 3/6/97 3/6/97 3/6/97 3/6/97 <br /> Instrument I.D.#: GCHP17 GCHP17 GCHP17 GCHP17 <br /> Conc. Spiked: 10pg/L 10 pg/L lopg/L 30 pg/L <br /> LCS Result: 8.0 8.0 8.1 25 <br /> LCS % Recov.: 80 80 81 83 <br /> MS/MSD 60-140 60-140 60-140 60-140 <br /> LCS 70-130 70-130 70-130 70-130 <br /> Control Lknits <br /> Please Note: <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> Q [A 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 analytical procedure. If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> linterference,the LCS recovery is to be used to validate the batch. <br /> eg y enne <br /> o ect Manager MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9702F02.BLA <4> <br /> 02� <br />