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s <br /> EI• <br /> ` u Sequola f � 680 Chesapeake Ddve Redwood City,CA 940f t415j 364-961N: FAX;415+ 354-4233 <br /> Fw„� 404 N.Wiget Lane Walnut Creek,CA 94591 <br /> Analytical` 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (516) 988-9600 FAX(516)988.9673 € <br /> J (916} 921-9600 FAX(916)921.0100 r` <br /> E <br /> ouchston �. <br /> e�•DevelomZii`:.:: <br /> ents: <br /> Client P e Project ID: - <br /> 52Ch �r� - <br /> 1 e on 91�4 , <br /> "5807 Balboa Drive i Matrix: Solid 52 <br /> ,.Oakland, CA 94611 li <br /> <Attention: Robert MallorV Work Order#: 9509100-01-16 <br /> Reported: OctO <br /> r <br /> :.. .....:...::..::.:.,:::._::.:: ::::.:::...........:. ct 6 1 <br /> 995 <br /> :.......................................:.:.......:.:,::.. ....: :::::._:.:....::::.:: <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene: Toluene Ethyl Xylenes ' <br /> Benzene <br /> OC Batch#: GCO9289513TEXEXB GC09289513TEXEXB GCO92895STEXEXB GCO928958TEXEXB <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 i <br /> r Prep. Method EPA 50.30 EPA 5030 EPA 50330 EPA 5030 <br /> d , <br /> Analyst: G.Garcia' G.Garcia G.Garcia G.Garcia <br /> MS/MSD #-' 9509D6312 9509136312 9509/36312 9509DB312 <br /> Sample Cone.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 9/28/95 9/28/95 9/28/95 9/28/95 <br /> Analyzed Date: 9/28/95 9/28/95 9/28/95 9/28/95 + <br /> Instrument I.D.#: GCHP1 '; GCHP1 GCHPi GCHP1 I <br /> Conc. Spiked: 0.20 mg/Kg 0.20 mg/Kg 0.20 mg/Kg 0.60 mg/Kg <br /> ,1 <br /> I Result: 0.16 jj 0.16 0.16 0.48 <br /> MS % Recovery: so y 80 80 so <br /> Dup. Result:` 0.16 0.16 0.16 0.48 <br /> MSD % Recov. 80 + 80 80 so <br /> yI3a <br /> RPD:: 0.0 1 0.0 0.0 0.0 <br /> RPD Limit:` 0.50 0-50 0-50 0-50 <br /> l <br /> LCS <br /> i <br /> Prepared Date:: - C <br /> Analyzed Date: i+ - <br /> Instrument I,D.#:j <br /> Conc. Spiked:i ;+ <br /> LCS Result:! ' <br /> -LCS%Recov.:'. <br /> MS/MS-r) <br /> �l <br /> LCS <br /> Control Limits 55.145 47-149 47-155 56-140 <br /> Please Note: <br /> '• �I The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> SEQ OIA ANALYT <br /> ICAL E3 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 /> i interference,the LCS recovery is to be used to validate the batch. <br /> Ma . Cargasacchi <br /> Project Manager "*MS=Matrix Spike,MSD=NES Duplicate,RPD=Relative%Difference 9509-100.TTT <3> <br /> E - <br />