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m <br /> v <br /> E� <br /> Project Number: SFB-1754=4.72 <br /> Consultant Project Number. 21)3-175-=9 <br /> •"1 Contract Number: N46CWC�<4-9-a <br /> 1 Facility Number: 90342 <br /> Work Ordst Number: C008468 <br /> I.a Report fseus Date: August 23,1M <br /> E� <br /> Taae5 <br /> MATRIX SPIKE(MS)AND MATRIX SPIKE DUPLICATE(MSD) RECOVERY <br /> AND RELATIVE PERCENT DIFFERENCE(RPD)REPORT <br /> Xa Purgeable Aromatics and Total Petroleum Hydrocarbons <br /> as Gasoline In SO <br /> EPA Method 8020/8015 <br /> f e Date 6f Analysis: 03/17/90 Client ID: BH-5-10 <br /> Sample Used: 0008317-30 Units: mg/Kg <br /> Sample Concentration MS, % MSD, % <br /> I v Analyte Result Added MS Resta Recovery MSD Recovery <br /> Result <br /> Benzene <0.005 2.86 203 71 1.95 68 <br /> E, Toluene <0.005 2.66 2.04 71 1.95 68 <br /> Ethylbenzene c0.005 2.85 2.10 73 2.00 70 <br /> X ene total c0.015 8.58 6.44 75 6.14 'l2 <br /> Acceptability Umltsl <br /> Analyte RPD.% Maximum RPD.% %Recovery <br /> 1 Benzene 4 30 50-112 <br /> Toluene a 30 5Q,-'-,J8 <br /> Et -a ene 4 30 60-113 <br /> ' X ene tots! 4 30 50-114 <br /> <# = Not Detected at the Indicated detection limit <br /> Acceptability limits are derived from the 99%confidence interval of all samples during the previous <br /> ;.quarter. <br /> IF <br /> G7EL Coneard,CJI Page 7 of 7 <br /> COD8468.DOC � GTE L <br /> IN V 1 sof ME N I AI - <br /> _ %Af Otl.tOo,13, tNC _ <br />